From f6ce926719943751cf65cacde7fae050593eb2d6 Mon Sep 17 00:00:00 2001 From: Perberos Date: Wed, 9 Nov 2011 18:17:43 -0300 Subject: inicial --- backend/impress/Makefile.am | 57 + backend/impress/common.h | 40 + backend/impress/document.c | 140 ++ backend/impress/f_oasis.c | 170 ++ backend/impress/f_oo13.c | 181 ++ backend/impress/iksemel.c | 1882 +++++++++++++++++++++ backend/impress/iksemel.h | 402 +++++ backend/impress/imposter.h | 84 + backend/impress/impress-document.c | 548 ++++++ backend/impress/impress-document.h | 39 + backend/impress/impressdocument.evince-backend.in | 4 + backend/impress/internal.h | 85 + backend/impress/r_back.c | 46 + backend/impress/r_draw.c | 120 ++ backend/impress/r_geometry.c | 208 +++ backend/impress/r_gradient.c | 387 +++++ backend/impress/r_style.c | 111 ++ backend/impress/r_text.c | 386 +++++ backend/impress/render.c | 54 + backend/impress/zip.c | 349 ++++ backend/impress/zip.h | 18 + 21 files changed, 5311 insertions(+) create mode 100644 backend/impress/Makefile.am create mode 100644 backend/impress/common.h create mode 100644 backend/impress/document.c create mode 100644 backend/impress/f_oasis.c create mode 100644 backend/impress/f_oo13.c create mode 100644 backend/impress/iksemel.c create mode 100644 backend/impress/iksemel.h create mode 100644 backend/impress/imposter.h create mode 100644 backend/impress/impress-document.c create mode 100644 backend/impress/impress-document.h create mode 100644 backend/impress/impressdocument.evince-backend.in create mode 100644 backend/impress/internal.h create mode 100644 backend/impress/r_back.c create mode 100644 backend/impress/r_draw.c create mode 100644 backend/impress/r_geometry.c create mode 100644 backend/impress/r_gradient.c create mode 100644 backend/impress/r_style.c create mode 100644 backend/impress/r_text.c create mode 100644 backend/impress/render.c create mode 100644 backend/impress/zip.c create mode 100644 backend/impress/zip.h (limited to 'backend/impress') diff --git a/backend/impress/Makefile.am b/backend/impress/Makefile.am new file mode 100644 index 00000000..a7b65705 --- /dev/null +++ b/backend/impress/Makefile.am @@ -0,0 +1,57 @@ +INCLUDES = \ + -I$(top_srcdir) \ + -I$(top_srcdir)/libdocument \ + -DMATELOCALEDIR=\"$(datadir)/locale\" \ + -DEVINCEDATADIR=\""$(datadir)"\" \ + -DEVINCE_COMPILATION \ + $(BACKEND_CFLAGS) \ + $(WARN_CFLAGS) \ + $(DISABLE_DEPRECATED) + +backend_LTLIBRARIES = libimpressdocument.la + +libimpressdocument_la_SOURCES = \ + $(IMPOSTER_SOURCE_FILES) \ + $(IMPOSTER_INCLUDE_FILES) \ + impress-document.c \ + impress-document.h + +IMPOSTER_SOURCE_FILES = \ + document.c \ + f_oasis.c \ + f_oo13.c \ + iksemel.c \ + r_back.c \ + r_draw.c \ + render.c \ + r_geometry.c \ + r_gradient.c \ + r_style.c \ + r_text.c \ + zip.c +IMPOSTER_INCLUDE_FILES = \ + common.h \ + iksemel.h \ + imposter.h \ + internal.h \ + zip.h +IMPOSTER_RENDER_SOURCE_FILES = \ + render.c +IMPOSTER_RENDER_INCLUDE_FILES = \ + render.h + +libimpressdocument_la_LDFLAGS = $(BACKEND_LIBTOOL_FLAGS) +libimpressdocument_la_LIBADD = \ + $(top_builddir)/libdocument/libevdocument.la \ + $(BACKEND_LIBS) -lz + +backend_in_files = impressdocument.evince-backend.in +backend_DATA = $(backend_in_files:.evince-backend.in=.evince-backend) + +EXTRA_DIST = $(backend_in_files) + +CLEANFILES = $(backend_DATA) + +@EV_INTLTOOL_EVINCE_BACKEND_RULE@ + +-include $(top_srcdir)/git.mk diff --git a/backend/impress/common.h b/backend/impress/common.h new file mode 100644 index 00000000..73e4ac19 --- /dev/null +++ b/backend/impress/common.h @@ -0,0 +1,40 @@ +/* imposter (OO.org Impress viewer) +** Copyright (C) 2003-2005 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU General Public License. +*/ + +#ifndef COMMON_H +#define COMMON_H 1 + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include +#include + +#ifdef STDC_HEADERS +#include +#include +#include +#elif HAVE_STRINGS_H +#include +#endif + +#ifdef HAVE_UNISTD_H +#include +#endif + +#ifdef HAVE_ERRNO_H +#include +#endif +#ifndef errno +extern int errno; +#endif + +#include +#include "imposter.h" + + +#endif /* COMMON_H */ diff --git a/backend/impress/document.c b/backend/impress/document.c new file mode 100644 index 00000000..b01c0e18 --- /dev/null +++ b/backend/impress/document.c @@ -0,0 +1,140 @@ +/* imposter (OO.org Impress viewer) +** Copyright (C) 2003-2005 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU General Public License. +*/ + +#include +#include "common.h" +#include "internal.h" + +static iks * +_imp_load_xml(ImpDoc *doc, const char *xmlfile) +{ + int e; + iks *x; + + x = zip_load_xml (doc->zfile, xmlfile, &e); + return x; +} + +ImpDoc * +imp_open(const char *filename, int *err) +{ + ImpDoc *doc; + int e; + + doc = calloc(1, sizeof(ImpDoc)); + if (!doc) { + *err = IMP_NOMEM; + return NULL; + } + + doc->stack = iks_stack_new(sizeof(ImpPage) * 32, 0); + if (!doc->stack) { + *err = IMP_NOMEM; + imp_close(doc); + return NULL; + } + + doc->zfile = zip_open(filename, &e); + if (e) { + *err = IMP_NOTZIP; + imp_close(doc); + return NULL; + } + + doc->content = _imp_load_xml(doc, "content.xml"); + doc->styles = _imp_load_xml(doc, "styles.xml"); + doc->meta = _imp_load_xml(doc, "meta.xml"); + + if (!doc->content || !doc->styles) { + *err = IMP_BADDOC; + imp_close(doc); + return NULL; + } + + e = _imp_oo13_load(doc); + if (e && e != IMP_NOTIMP) { + *err = e; + imp_close(doc); + return NULL; + } + + if (e == IMP_NOTIMP) { + e = _imp_oasis_load(doc); + if (e) { + *err = e; + imp_close(doc); + return NULL; + } + } + + return doc; +} + +int +imp_nr_pages(ImpDoc *doc) +{ + return doc->nr_pages; +} + +ImpPage * +imp_get_page(ImpDoc *doc, int page_no) +{ + if (page_no == IMP_LAST_PAGE) { + return doc->last_page; + } else { + ImpPage *page; + if (page_no < 0 || page_no > doc->nr_pages) return NULL; + for (page = doc->pages; page_no; --page_no) { + page = page->next; + } + return page; + } +} + +ImpPage * +imp_next_page(ImpPage *page) +{ + return page->next; +} + +ImpPage * +imp_prev_page(ImpPage *page) +{ + return page->prev; +} + +int +imp_get_page_no(ImpPage *page) +{ + return page->nr; +} + +const char * +imp_get_page_name(ImpPage *page) +{ + return page->name; +} + +void * +imp_get_xml(ImpDoc *doc, const char *filename) +{ + if (strcmp(filename, "content.xml") == 0) + return doc->content; + else if (strcmp(filename, "styles.xml") == 0) + return doc->styles; + else if (strcmp(filename, "meta.xml") == 0) + return doc->meta; + else + return NULL; +} + +void +imp_close(ImpDoc *doc) +{ + if (doc->stack) iks_stack_delete(doc->stack); + if (doc->zfile) zip_close(doc->zfile); + free(doc); +} diff --git a/backend/impress/f_oasis.c b/backend/impress/f_oasis.c new file mode 100644 index 00000000..8fe6ee1a --- /dev/null +++ b/backend/impress/f_oasis.c @@ -0,0 +1,170 @@ +/* imposter (OO.org Impress viewer) +** Copyright (C) 2003-2005 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU General Public License. +*/ + +#include +#include "common.h" +#include "internal.h" + +static void +render_object(ImpRenderCtx *ctx, void *drw_data, iks *node) +{ + char *tag, *t; + ImpColor fg; + + tag = iks_name(node); + if (strcmp(tag, "draw:g") == 0) { + iks *x; + for (x = iks_first_tag(node); x; x = iks_next_tag(x)) { + render_object(ctx, drw_data, x); + } + } else if (strcmp(tag, "draw:frame") == 0) { + iks *x; + for (x = iks_first_tag(node); x; x = iks_next_tag(x)) { + render_object(ctx, drw_data, x); + } + } else if (strcmp(tag, "draw:line") == 0) { + r_get_color(ctx, node, "svg:stroke-color", &fg); + ctx->drw->set_fg_color(drw_data, &fg); + ctx->drw->draw_line(drw_data, + r_get_x(ctx, node, "svg:x1"), r_get_y(ctx, node, "svg:y1"), + r_get_x(ctx, node, "svg:x2"), r_get_y(ctx, node, "svg:y2") + ); + } else if (strcmp(tag, "draw:rect") == 0) { + int x, y, w, h, r = 0; + char *t; + x = r_get_x(ctx, node, "svg:x"); + y = r_get_y(ctx, node, "svg:y"); + w = r_get_x(ctx, node, "svg:width"); + h = r_get_y(ctx, node, "svg:height"); + t = r_get_style(ctx, node, "draw:corner-radius"); + if (t) r = atof(t) * ctx->fact_x; + if (r_get_style(ctx, node, "draw:fill")) { + r_get_color(ctx, node, "draw:fill-color", &fg); + ctx->drw->set_fg_color(drw_data, &fg); + _imp_draw_rect(ctx, drw_data, 1, x, y, w, h, r); + } + r_get_color(ctx, node, "svg:stroke-color", &fg); + ctx->drw->set_fg_color(drw_data, &fg); + _imp_draw_rect(ctx, drw_data, 0, x, y, w, h, r); + r_text(ctx, drw_data, node); + } else if (strcmp(tag, "draw:ellipse") == 0 || strcmp(tag, "draw:circle") == 0) { + int sa, ea, fill = 0; + r_get_color(ctx, node, "svg:stroke-color", &fg); + sa = r_get_angle(node, "draw:start-angle", 0); + ea = r_get_angle(node, "draw:end-angle", 360); + if (ea > sa) ea = ea - sa; else ea = 360 + ea - sa; + t = r_get_style(ctx, node, "draw:fill"); + if (t) fill = 1; + ctx->drw->set_fg_color(drw_data, &fg); + ctx->drw->draw_arc(drw_data, + fill, + r_get_x(ctx, node, "svg:x"), r_get_y(ctx, node, "svg:y"), + r_get_x(ctx, node, "svg:width"), r_get_y(ctx, node, "svg:height"), + sa, ea + ); + } else if (strcmp(tag, "draw:polygon") == 0) { + // FIXME: + r_polygon(ctx, drw_data, node); + } else if (strcmp(tag, "draw:text-box") == 0) { + // FIXME: + r_text(ctx, drw_data, node); + } else if (strcmp(tag, "draw:image") == 0) { + char *name; + + name = iks_find_attrib(node, "xlink:href"); + if (!name) return; + if (name[0] == '#') ++name; + + _imp_draw_image(ctx, drw_data, + name, + r_get_x(ctx, node, "svg:x"), + r_get_y(ctx, node, "svg:y"), + r_get_x(ctx, node, "svg:width"), + r_get_y(ctx, node, "svg:height") + ); + } else { + printf("Unknown element: %s\n", tag); + } +} + +static void +render_page(ImpRenderCtx *ctx, void *drw_data) +{ + iks *x; + char *element; + int i; + + i = _imp_fill_back(ctx, drw_data, ctx->page->page); + element = iks_find_attrib(ctx->page->page, "draw:master-page-name"); + if (element) { + x = iks_find_with_attrib( + iks_find(ctx->page->doc->styles, "office:master-styles"), + "style:master-page", "style:name", element + ); + if (x) { + if (i == 0) _imp_fill_back(ctx, drw_data, x); + for (x = iks_first_tag(x); x; x = iks_next_tag(x)) { + if (iks_find_attrib(x, "presentation:class")) + continue; + render_object(ctx, drw_data, x); + } + } + } + for (x = iks_first_tag(ctx->page->page); x; x = iks_next_tag(x)) { + render_object(ctx, drw_data, x); + } +} + +static void +get_geometry(ImpRenderCtx *ctx) +{ + char *tmp; + iks *x, *y; + + tmp = iks_find_attrib(ctx->page->page, "draw:master-page-name"); + x = iks_find(ctx->page->doc->styles, "office:master-styles"); + y = iks_find_with_attrib(x, "style:master-page", "style:name", tmp); + x = iks_find(ctx->page->doc->styles, "office:automatic-styles"); + y = iks_find_with_attrib(x, "style:page-layout", "style:name", + iks_find_attrib(y, "style:page-layout-name")); + ctx->cm_w = atof(iks_find_attrib(iks_find(y, "style:page-layout-properties"), "fo:page-width")); + ctx->cm_h = atof(iks_find_attrib(iks_find(y, "style:page-layout-properties"), "fo:page-height")); +} + +int +_imp_oasis_load(ImpDoc *doc) +{ + ImpPage *page; + iks *x, *pres; + int i; + + pres = iks_find(iks_find(doc->content, "office:body"), "office:presentation"); + if (!pres) return IMP_NOTIMP; + + x = iks_find(pres, "draw:page"); + if (!x) return IMP_NOTIMP; + i = 0; + for (; x; x = iks_next_tag(x)) { + if (strcmp(iks_name(x), "draw:page") == 0) { + page = iks_stack_alloc(doc->stack, sizeof(ImpPage)); + if (!page) return IMP_NOMEM; + memset(page, 0, sizeof(ImpPage)); + page->page = x; + page->nr = ++i; + page->name = iks_find_attrib(x, "draw:name"); + page->doc = doc; + if (!doc->pages) doc->pages = page; + page->prev = doc->last_page; + if (doc->last_page) doc->last_page->next = page; + doc->last_page = page; + } + } + doc->nr_pages = i; + doc->get_geometry = get_geometry; + doc->render_page = render_page; + + return 0; +} diff --git a/backend/impress/f_oo13.c b/backend/impress/f_oo13.c new file mode 100644 index 00000000..7bfeeb53 --- /dev/null +++ b/backend/impress/f_oo13.c @@ -0,0 +1,181 @@ +/* imposter (OO.org Impress viewer) +** Copyright (C) 2003-2005 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU General Public License. +*/ + +#include +#include "common.h" +#include "internal.h" + +// { "draw:text-box", r_text }, +// { "draw:connector", r_line }, +// { "draw:polyline", r_polyline }, +// { "draw:polygon", r_polygon }, +// { "draw:path", r_path }, + +static void +render_object(ImpRenderCtx *ctx, void *drw_data, iks *node) +{ + char *tag, *t; + ImpColor fg; + + tag = iks_name(node); + if (strcmp(tag, "draw:g") == 0) { + iks *x; + for (x = iks_first_tag(node); x; x = iks_next_tag(x)) { + render_object(ctx, drw_data, x); + } + } else if (strcmp(tag, "draw:line") == 0) { + int x1, y1, x2, y2; + r_get_color(ctx, node, "svg:stroke-color", &fg); + ctx->drw->set_fg_color(drw_data, &fg); + x1 = r_get_x(ctx, node, "svg:x1"); + y1 = r_get_y(ctx, node, "svg:y1"); + x2 = r_get_x(ctx, node, "svg:x2"); + y2 = r_get_y(ctx, node, "svg:y2"); + ctx->drw->draw_line(drw_data, x1, y1, x2, y2); + if (r_get_style(ctx, node, "draw:marker-start")) { + _imp_draw_line_end(ctx, drw_data, 0, 0, x2, y2, x1, y1); + } + if (r_get_style(ctx, node, "draw:marker-end")) { + _imp_draw_line_end(ctx, drw_data, 0, 0, x1, y1, x2, y2); + } + } else if (strcmp(tag, "draw:rect") == 0) { + int x, y, w, h, r = 0; + char *t; + x = r_get_x(ctx, node, "svg:x"); + y = r_get_y(ctx, node, "svg:y"); + w = r_get_x(ctx, node, "svg:width"); + h = r_get_y(ctx, node, "svg:height"); + t = r_get_style(ctx, node, "draw:corner-radius"); + if (t) r = atof(t) * ctx->fact_x; + t = r_get_style(ctx, node, "draw:fill"); + if (t && strcmp(t, "none") != 0) { + r_get_color(ctx, node, "draw:fill-color", &fg); + ctx->drw->set_fg_color(drw_data, &fg); + _imp_draw_rect(ctx, drw_data, 1, x, y, w, h, r); + } + r_get_color(ctx, node, "svg:stroke-color", &fg); + ctx->drw->set_fg_color(drw_data, &fg); + _imp_draw_rect(ctx, drw_data, 0, x, y, w, h, r); + r_text(ctx, drw_data, node); + } else if (strcmp(tag, "draw:ellipse") == 0 || strcmp(tag, "draw:circle") == 0) { + int sa, ea, fill = 0; + r_get_color(ctx, node, "svg:stroke-color", &fg); + sa = r_get_angle(node, "draw:start-angle", 0); + ea = r_get_angle(node, "draw:end-angle", 360); + if (ea > sa) ea = ea - sa; else ea = 360 + ea - sa; + t = r_get_style(ctx, node, "draw:fill"); + if (t) fill = 1; + ctx->drw->set_fg_color(drw_data, &fg); + ctx->drw->draw_arc(drw_data, + fill, + r_get_x(ctx, node, "svg:x"), r_get_y(ctx, node, "svg:y"), + r_get_x(ctx, node, "svg:width"), r_get_y(ctx, node, "svg:height"), + sa, ea + ); + } else if (strcmp(tag, "draw:polygon") == 0) { + // FIXME: + r_polygon(ctx, drw_data, node); + } else if (strcmp(tag, "draw:text-box") == 0) { + // FIXME: + r_text(ctx, drw_data, node); + } else if (strcmp(tag, "draw:image") == 0) { + char *name; + + name = iks_find_attrib(node, "xlink:href"); + if (!name) return; + if (name[0] == '#') ++name; + + _imp_draw_image(ctx, drw_data, + name, + r_get_x(ctx, node, "svg:x"), + r_get_y(ctx, node, "svg:y"), + r_get_x(ctx, node, "svg:width"), + r_get_y(ctx, node, "svg:height") + ); + } else { + printf("Unknown element: %s\n", tag); + } +} + +static void +render_page(ImpRenderCtx *ctx, void *drw_data) +{ + iks *x; + char *element; + int i; + + i = _imp_fill_back(ctx, drw_data, ctx->page->page); + element = iks_find_attrib(ctx->page->page, "draw:master-page-name"); + if (element) { + x = iks_find_with_attrib( + iks_find(ctx->page->doc->styles, "office:master-styles"), + "style:master-page", "style:name", element + ); + if (x) { + if (i == 0) _imp_fill_back(ctx, drw_data, x); + for (x = iks_first_tag(x); x; x = iks_next_tag(x)) { + if (iks_find_attrib(x, "presentation:class")) + continue; + render_object(ctx, drw_data, x); + } + } + } + for (x = iks_first_tag(ctx->page->page); x; x = iks_next_tag(x)) { + render_object(ctx, drw_data, x); + } +} + +static void +get_geometry(ImpRenderCtx *ctx) +{ + char *tmp; + iks *x, *y; + + tmp = iks_find_attrib(ctx->page->page, "draw:master-page-name"); + x = iks_find(ctx->page->doc->styles, "office:master-styles"); + y = iks_find_with_attrib(x, "style:master-page", "style:name", tmp); + x = iks_find(ctx->page->doc->styles, "office:automatic-styles"); + y = iks_find_with_attrib(x, "style:page-master", "style:name", + iks_find_attrib(y, "style:page-master-name")); + ctx->cm_w = atof(iks_find_attrib(iks_find(y, "style:properties"), "fo:page-width")); + ctx->cm_h = atof(iks_find_attrib(iks_find(y, "style:properties"), "fo:page-height")); +} + +int +_imp_oo13_load(ImpDoc *doc) +{ + ImpPage *page; + char *class; + iks *x; + int i; + + class = iks_find_attrib(doc->content, "office:class"); + if (iks_strcmp(class, "presentation") != 0) return IMP_NOTIMP; + + x = iks_find(iks_find(doc->content, "office:body"), "draw:page"); + if (!x) return IMP_NOTIMP; + i = 0; + for (; x; x = iks_next_tag(x)) { + if (strcmp(iks_name(x), "draw:page") == 0) { + page = iks_stack_alloc(doc->stack, sizeof(ImpPage)); + if (!page) return IMP_NOMEM; + memset(page, 0, sizeof(ImpPage)); + page->page = x; + page->nr = ++i; + page->name = iks_find_attrib(x, "draw:name"); + page->doc = doc; + if (!doc->pages) doc->pages = page; + page->prev = doc->last_page; + if (doc->last_page) doc->last_page->next = page; + doc->last_page = page; + } + } + doc->nr_pages = i; + doc->get_geometry = get_geometry; + doc->render_page = render_page; + + return 0; +} diff --git a/backend/impress/iksemel.c b/backend/impress/iksemel.c new file mode 100644 index 00000000..9908e132 --- /dev/null +++ b/backend/impress/iksemel.c @@ -0,0 +1,1882 @@ +/* iksemel (XML parser for Jabber) +** Copyright (C) 2000-2003 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU Lesser General Public License. +*/ + +/* minimum sax buffer size */ +#define SAX_BUFFER_MIN_SIZE 128 + +/* sax parser structure plus extra data of dom parser */ +#define DEFAULT_DOM_CHUNK_SIZE 256 + +/* sax parser structure plus extra data of stream parser */ +#define DEFAULT_STREAM_CHUNK_SIZE 256 + +/* iks structure, its data, child iks structures, for stream parsing */ +#define DEFAULT_IKS_CHUNK_SIZE 1024 + +/* iks structure, its data, child iks structures, for file parsing */ +#define DEFAULT_DOM_IKS_CHUNK_SIZE 2048 + +/* rule structure and from/to/id/ns strings */ +#define DEFAULT_RULE_CHUNK_SIZE 128 + +/* file is read by blocks with this size */ +#define FILE_IO_BUF_SIZE 4096 + +/* network receive buffer */ +#define NET_IO_BUF_SIZE 4096 +/* iksemel (XML parser for Jabber) +** Copyright (C) 2000-2003 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU Lesser General Public License. +*/ + +#include +#include + +#include "common.h" +#include "iksemel.h" + +/***** malloc wrapper *****/ + +static void *(*my_malloc_func)(size_t size); +static void (*my_free_func)(void *ptr); + +void * +iks_malloc (size_t size) +{ + if (my_malloc_func) + return my_malloc_func (size); + else + return malloc (size); +} + +void +iks_free (void *ptr) +{ + if (my_free_func) + my_free_func (ptr); + else + free (ptr); +} + +void +iks_set_mem_funcs (void *(*malloc_func)(size_t size), void (*free_func)(void *ptr)) +{ + my_malloc_func = malloc_func; + my_free_func = free_func; +} + +/***** NULL-safe Functions *****/ + +char * +iks_strdup (const char *src) +{ + if (src) return strdup(src); + return NULL; +} + +char * +iks_strcat (char *dest, const char *src) +{ + size_t len; + + if (!src) return dest; + + len = strlen (src); + memcpy (dest, src, len); + dest[len] = '\0'; + return dest + len; +} + +int +iks_strcmp (const char *a, const char *b) +{ + if (!a || !b) return -1; + return strcmp (a, b); +} + +int +iks_strcasecmp (const char *a, const char *b) +{ + if (!a || !b) return -1; + return strcasecmp (a, b); +} + +int +iks_strncmp (const char *a, const char *b, size_t n) +{ + if (!a || !b) return -1; + return strncmp (a, b, n); +} + +int +iks_strncasecmp (const char *a, const char *b, size_t n) +{ + if (!a || !b) return -1; + return strncasecmp (a, b, n); +} + +size_t +iks_strlen (const char *src) +{ + if (!src) return 0; + return strlen (src); +} + +/***** XML Escaping *****/ + +char * +iks_escape (ikstack *s, char *src, size_t len) +{ + char *ret; + int i, j, nlen; + + if (!src || !s) return NULL; + if (len == -1) len = strlen (src); + + nlen = len; + for (i=0; i': nlen += 3; break; + case '\'': nlen += 5; break; + case '"': nlen += 5; break; + } + } + if (len == nlen) return src; + + ret = iks_stack_alloc (s, nlen + 1); + if (!ret) return NULL; + + for (i=j=0; i': memcpy (&ret[j], ">", 4); j += 4; break; + default: ret[j++] = src[i]; + } + } + ret[j] = '\0'; + + return ret; +} + +char * +iks_unescape (ikstack *s, char *src, size_t len) +{ + int i,j; + char *ret; + + if (!s || !src) return NULL; + if (!strchr (src, '&')) return src; + if (len == -1) len = strlen (src); + + ret = iks_stack_alloc (s, len + 1); + if (!ret) return NULL; + + for (i=j=0; i +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU Lesser General Public License. +*/ + +#include "common.h" +#include "iksemel.h" + +struct align_test { char a; double b; }; +#define DEFAULT_ALIGNMENT ((size_t) ((char *) &((struct align_test *) 0)->b - (char *) 0)) +#define ALIGN_MASK ( DEFAULT_ALIGNMENT - 1 ) +#define MIN_CHUNK_SIZE ( DEFAULT_ALIGNMENT * 8 ) +#define MIN_ALLOC_SIZE DEFAULT_ALIGNMENT +#define ALIGN(x) ( (x) + (DEFAULT_ALIGNMENT - ( (x) & ALIGN_MASK)) ) + +typedef struct ikschunk_struct { + struct ikschunk_struct *next; + size_t size; + size_t used; + size_t last; + char data[4]; +} ikschunk; + +struct ikstack_struct { + size_t allocated; + ikschunk *meta; + ikschunk *data; +}; + +static ikschunk * +find_space (ikstack *s, ikschunk *c, size_t size) +{ + /* FIXME: dont use *2 after over allocated chunks */ + while (1) { + if (c->size - c->used >= size) return c; + if (!c->next) { + if ((c->size * 2) > size) size = c->size * 2; + c->next = iks_malloc (sizeof (ikschunk) + size); + if (!c->next) return NULL; + s->allocated += sizeof (ikschunk) + size; + c = c->next; + c->next = NULL; + c->size = size; + c->used = 0; + c->last = (size_t) -1; + return c; + } + c = c->next; + } + return NULL; +} + +ikstack * +iks_stack_new (size_t meta_chunk, size_t data_chunk) +{ + ikstack *s; + size_t len; + + if (meta_chunk < MIN_CHUNK_SIZE) meta_chunk = MIN_CHUNK_SIZE; + if (meta_chunk & ALIGN_MASK) meta_chunk = ALIGN (meta_chunk); + if (data_chunk < MIN_CHUNK_SIZE) data_chunk = MIN_CHUNK_SIZE; + if (data_chunk & ALIGN_MASK) data_chunk = ALIGN (data_chunk); + + len = sizeof (ikstack) + meta_chunk + data_chunk + (sizeof (ikschunk) * 2); + s = iks_malloc (len); + if (!s) return NULL; + s->allocated = len; + s->meta = (ikschunk *) ((char *) s + sizeof (ikstack)); + s->meta->next = NULL; + s->meta->size = meta_chunk; + s->meta->used = 0; + s->meta->last = (size_t) -1; + s->data = (ikschunk *) ((char *) s + sizeof (ikstack) + sizeof (ikschunk) + meta_chunk); + s->data->next = NULL; + s->data->size = data_chunk; + s->data->used = 0; + s->data->last = (size_t) -1; + return s; +} + +void * +iks_stack_alloc (ikstack *s, size_t size) +{ + ikschunk *c; + void *mem; + + if (size < MIN_ALLOC_SIZE) size = MIN_ALLOC_SIZE; + if (size & ALIGN_MASK) size = ALIGN (size); + + c = find_space (s, s->meta, size); + if (!c) return NULL; + mem = c->data + c->used; + c->used += size; + return mem; +} + +char * +iks_stack_strdup (ikstack *s, const char *src, size_t len) +{ + ikschunk *c; + char *dest; + + if (!src) return NULL; + if (0 == len) len = strlen (src); + + c = find_space (s, s->data, len + 1); + if (!c) return NULL; + dest = c->data + c->used; + c->last = c->used; + c->used += len + 1; + memcpy (dest, src, len); + dest[len] = '\0'; + return dest; +} + +char * +iks_stack_strcat (ikstack *s, char *old, size_t old_len, const char *src, size_t src_len) +{ + char *ret; + ikschunk *c; + + if (!old) { + return iks_stack_strdup (s, src, src_len); + } + if (0 == old_len) old_len = strlen (old); + if (0 == src_len) src_len = strlen (src); + + for (c = s->data; c; c = c->next) { + if (c->data + c->last == old) break; + } + if (!c) { + c = find_space (s, s->data, old_len + src_len + 1); + if (!c) return NULL; + ret = c->data + c->used; + c->last = c->used; + c->used += old_len + src_len + 1; + memcpy (ret, old, old_len); + memcpy (ret + old_len, src, src_len); + ret[old_len + src_len] = '\0'; + return ret; + } + + if (c->size - c->used > src_len) { + ret = c->data + c->last; + memcpy (ret + old_len, src, src_len); + c->used += src_len; + ret[old_len + src_len] = '\0'; + } else { + /* FIXME: decrease c->used before moving string to new place */ + c = find_space (s, s->data, old_len + src_len + 1); + if (!c) return NULL; + c->last = c->used; + ret = c->data + c->used; + memcpy (ret, old, old_len); + c->used += old_len; + memcpy (c->data + c->used, src, src_len); + c->used += src_len; + c->data[c->used] = '\0'; + c->used++; + } + return ret; +} + +void +iks_stack_stat (ikstack *s, size_t *allocated, size_t *used) +{ + ikschunk *c; + + if (allocated) { + *allocated = s->allocated; + } + if (used) { + *used = 0; + for (c = s->meta; c; c = c->next) { + (*used) += c->used; + } + for (c = s->data; c; c = c->next) { + (*used) += c->used; + } + } +} + +void +iks_stack_delete (ikstack *s) +{ + ikschunk *c, *tmp; + + c = s->meta->next; + while (c) { + tmp = c->next; + iks_free (c); + c = tmp; + } + c = s->data->next; + while (c) { + tmp = c->next; + iks_free (c); + c = tmp; + } + iks_free (s); +} +/* iksemel (XML parser for Jabber) +** Copyright (C) 2000-2004 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU Lesser General Public License. +*/ + +#include "common.h" +#include "iksemel.h" + +enum cons_e { + C_CDATA = 0, + C_TAG_START, + C_TAG, + C_TAG_END, + C_ATTRIBUTE, + C_ATTRIBUTE_1, + C_ATTRIBUTE_2, + C_VALUE, + C_VALUE_APOS, + C_VALUE_QUOT, + C_WHITESPACE, + C_ENTITY, + C_COMMENT, + C_COMMENT_1, + C_COMMENT_2, + C_COMMENT_3, + C_MARKUP, + C_MARKUP_1, + C_SECT, + C_SECT_CDATA, + C_SECT_CDATA_1, + C_SECT_CDATA_2, + C_SECT_CDATA_3, + C_SECT_CDATA_4, + C_SECT_CDATA_C, + C_SECT_CDATA_E, + C_SECT_CDATA_E2, + C_PI +}; + +/* if you add a variable here, dont forget changing iks_parser_reset */ +struct iksparser_struct { + ikstack *s; + void *user_data; + iksTagHook *tagHook; + iksCDataHook *cdataHook; + iksDeleteHook *deleteHook; + /* parser context */ + char *stack; + size_t stack_pos; + size_t stack_max; + + enum cons_e context; + enum cons_e oldcontext; + + char *tag_name; + enum ikstagtype tagtype; + + unsigned int attmax; + unsigned int attcur; + int attflag; + char **atts; + int valflag; + + unsigned int entpos; + char entity[8]; + + unsigned long nr_bytes; + unsigned long nr_lines; + + int uni_max; + int uni_len; +}; + +iksparser * +iks_sax_new (void *user_data, iksTagHook *tagHook, iksCDataHook *cdataHook) +{ + iksparser *prs; + + prs = iks_malloc (sizeof (iksparser)); + if (NULL == prs) return NULL; + memset (prs, 0, sizeof (iksparser)); + prs->user_data = user_data; + prs->tagHook = tagHook; + prs->cdataHook = cdataHook; + return prs; +} + +iksparser * +iks_sax_extend (ikstack *s, void *user_data, iksTagHook *tagHook, iksCDataHook *cdataHook, iksDeleteHook *deleteHook) +{ + iksparser *prs; + + prs = iks_stack_alloc (s, sizeof (iksparser)); + if (NULL == prs) return NULL; + memset (prs, 0, sizeof (iksparser)); + prs->s = s; + prs->user_data = user_data; + prs->tagHook = tagHook; + prs->cdataHook = cdataHook; + prs->deleteHook = deleteHook; + return prs; +} + +ikstack * +iks_parser_stack (iksparser *prs) +{ + return prs->s; +} + +void * +iks_user_data (iksparser *prs) +{ + return prs->user_data; +} + +unsigned long +iks_nr_bytes (iksparser *prs) +{ + return prs->nr_bytes; +} + +unsigned long +iks_nr_lines (iksparser *prs) +{ + return prs->nr_lines; +} + +#define IS_WHITESPACE(x) ' ' == (x) || '\t' == (x) || '\r' == (x) || '\n' == (x) +#define NOT_WHITESPACE(x) ' ' != (x) && '\t' != (x) && '\r' != (x) && '\n' != (x) + +static int +stack_init (iksparser *prs) +{ + prs->stack = iks_malloc (128); + if (!prs->stack) return 0; + prs->stack_max = 128; + prs->stack_pos = 0; + return 1; +} + +static int +stack_expand (iksparser *prs, int len) +{ + size_t need; + off_t diff; + char *tmp; + need = len - (prs->stack_max - prs->stack_pos); + if (need < prs->stack_max) { + need = prs->stack_max * 2; + } else { + need = prs->stack_max + (need * 1.2); + } + tmp = iks_malloc (need); + if (!tmp) return 0; + diff = tmp - prs->stack; + memcpy (tmp, prs->stack, prs->stack_max); + iks_free (prs->stack); + prs->stack = tmp; + prs->stack_max = need; + prs->tag_name += diff; + if (prs->attflag != 0) { + int i = 0; + while (i < (prs->attmax * 2)) { + if (prs->atts[i]) prs->atts[i] += diff; + i++; + } + } + return 1; +} + +#define STACK_INIT \ + if (NULL == prs->stack && 0 == stack_init (prs)) return IKS_NOMEM + +#define STACK_PUSH_START (prs->stack + prs->stack_pos) + +#define STACK_PUSH(buf,len) \ +{ \ + char *sbuf = (buf); \ + size_t slen = (len); \ + if (prs->stack_max - prs->stack_pos <= slen) { \ + if (0 == stack_expand (prs, slen)) return IKS_NOMEM; \ + } \ + memcpy (prs->stack + prs->stack_pos, sbuf, slen); \ + prs->stack_pos += slen; \ +} + +#define STACK_PUSH_END \ +{ \ + if (prs->stack_pos >= prs->stack_max) { \ + if (0 == stack_expand (prs, 1)) return IKS_NOMEM; \ + } \ + prs->stack[prs->stack_pos] = '\0'; \ + prs->stack_pos++; \ +} + +static enum ikserror +sax_core (iksparser *prs, char *buf, int len) +{ + enum ikserror err; + int pos = 0, old = 0, re, stack_old = -1; + unsigned char c; + + while (pos < len) { + re = 0; + c = buf[pos]; + if (0 == c || 0xFE == c || 0xFF == c) return IKS_BADXML; + if (prs->uni_max) { + if ((c & 0xC0) != 0x80) return IKS_BADXML; + prs->uni_len++; + if (prs->uni_len == prs->uni_max) prs->uni_max = 0; + goto cont; + } else { + if (c & 0x80) { + unsigned char mask; + if ((c & 0x60) == 0x40) { + prs->uni_max = 2; + mask = 0x1F; + } else if ((c & 0x70) == 0x60) { + prs->uni_max = 3; + mask = 0x0F; + } else if ((c & 0x78) == 0x70) { + prs->uni_max = 4; + mask = 0x07; + } else if ((c & 0x7C) == 0x78) { + prs->uni_max = 5; + mask = 0x03; + } else if ((c & 0x7E) == 0x7C) { + prs->uni_max = 6; + mask = 0x01; + } else { + return IKS_BADXML; + } + if ((c & mask) == 0) return IKS_BADXML; + prs->uni_len = 1; + if (stack_old == -1) stack_old = pos; + goto cont; + } + } + + switch (prs->context) { + case C_CDATA: + if ('&' == c) { + if (old < pos && prs->cdataHook) { + err = prs->cdataHook (prs->user_data, &buf[old], pos - old); + if (IKS_OK != err) return err; + } + prs->context = C_ENTITY; + prs->entpos = 0; + break; + } + if ('<' == c) { + if (old < pos && prs->cdataHook) { + err = prs->cdataHook (prs->user_data, &buf[old], pos - old); + if (IKS_OK != err) return err; + } + STACK_INIT; + prs->tag_name = STACK_PUSH_START; + if (!prs->tag_name) return IKS_NOMEM; + prs->context = C_TAG_START; + } + break; + + case C_TAG_START: + prs->context = C_TAG; + if ('/' == c) { + prs->tagtype = IKS_CLOSE; + break; + } + if ('?' == c) { + prs->context = C_PI; + break; + } + if ('!' == c) { + prs->context = C_MARKUP; + break; + } + prs->tagtype = IKS_OPEN; + stack_old = pos; + break; + + case C_TAG: + if (IS_WHITESPACE(c)) { + if (IKS_CLOSE == prs->tagtype) + prs->oldcontext = C_TAG_END; + else + prs->oldcontext = C_ATTRIBUTE; + prs->context = C_WHITESPACE; + if (stack_old != -1) STACK_PUSH (buf + stack_old, pos - stack_old); + stack_old = -1; + STACK_PUSH_END; + break; + } + if ('/' == c) { + if (IKS_CLOSE == prs->tagtype) return IKS_BADXML; + prs->tagtype = IKS_SINGLE; + prs->context = C_TAG_END; + if (stack_old != -1) STACK_PUSH (buf + stack_old, pos - stack_old); + stack_old = -1; + STACK_PUSH_END; + break; + } + if ('>' == c) { + prs->context = C_TAG_END; + if (stack_old != -1) STACK_PUSH (buf + stack_old, pos - stack_old); + stack_old = -1; + STACK_PUSH_END; + re = 1; + } + if (stack_old == -1) stack_old = pos; + break; + + case C_TAG_END: + if (c != '>') return IKS_BADXML; + if (prs->tagHook) { + char **tmp; + if (prs->attcur == 0) tmp = NULL; else tmp = prs->atts; + err = prs->tagHook (prs->user_data, prs->tag_name, tmp, prs->tagtype); + if (IKS_OK != err) return err; + } + prs->stack_pos = 0; + stack_old = -1; + prs->attcur = 0; + prs->attflag = 0; + prs->context = C_CDATA; + old = pos + 1; + break; + + case C_ATTRIBUTE: + if ('/' == c) { + prs->tagtype = IKS_SINGLE; + prs->context = C_TAG_END; + break; + } + if ('>' == c) { + prs->context = C_TAG_END; + re = 1; + break; + } + if (!prs->atts) { + prs->attmax = 12; + prs->atts = iks_malloc (sizeof(char *) * 2 * 12); + if (!prs->atts) return IKS_NOMEM; + memset (prs->atts, 0, sizeof(char *) * 2 * 12); + prs->attcur = 0; + } else { + if (prs->attcur >= (prs->attmax * 2)) { + void *tmp; + prs->attmax += 12; + tmp = iks_malloc (sizeof(char *) * (2 * prs->attmax + 1)); + if (!tmp) return IKS_NOMEM; + memset (tmp, 0, sizeof(char *) * (2 * prs->attmax + 1)); + memcpy (tmp, prs->atts, sizeof(char *) * prs->attcur); + iks_free (prs->atts); + prs->atts = tmp; + } + } + prs->attflag = 1; + prs->atts[prs->attcur] = STACK_PUSH_START; + stack_old = pos; + prs->context = C_ATTRIBUTE_1; + break; + + case C_ATTRIBUTE_1: + if ('=' == c) { + if (stack_old != -1) STACK_PUSH (buf + stack_old, pos - stack_old); + stack_old = -1; + STACK_PUSH_END; + prs->context = C_VALUE; + break; + } + if (stack_old == -1) stack_old = pos; + break; + + case C_ATTRIBUTE_2: + if ('/' == c) { + prs->tagtype = IKS_SINGLE; + prs->atts[prs->attcur] = NULL; + prs->context = C_TAG_END; + break; + } + if ('>' == c) { + prs->atts[prs->attcur] = NULL; + prs->context = C_TAG_END; + re = 1; + break; + } + prs->context = C_ATTRIBUTE; + re = 1; + break; + + case C_VALUE: + prs->atts[prs->attcur + 1] = STACK_PUSH_START; + if ('\'' == c) { + prs->context = C_VALUE_APOS; + break; + } + if ('"' == c) { + prs->context = C_VALUE_QUOT; + break; + } + return IKS_BADXML; + + case C_VALUE_APOS: + if ('\'' == c) { + if (stack_old != -1) STACK_PUSH (buf + stack_old, pos - stack_old); + stack_old = -1; + STACK_PUSH_END; + prs->oldcontext = C_ATTRIBUTE_2; + prs->context = C_WHITESPACE; + prs->attcur += 2; + } + if (stack_old == -1) stack_old = pos; + break; + + case C_VALUE_QUOT: + if ('"' == c) { + if (stack_old != -1) STACK_PUSH (buf + stack_old, pos - stack_old); + stack_old = -1; + STACK_PUSH_END; + prs->oldcontext = C_ATTRIBUTE_2; + prs->context = C_WHITESPACE; + prs->attcur += 2; + } + if (stack_old == -1) stack_old = pos; + break; + + case C_WHITESPACE: + if (NOT_WHITESPACE(c)) { + prs->context = prs->oldcontext; + re = 1; + } + break; + + case C_ENTITY: + if (';' == c) { + char hede[2]; + char t = '?'; + prs->entity[prs->entpos] = '\0'; + if (strcmp(prs->entity, "amp") == 0) + t = '&'; + else if (strcmp(prs->entity, "quot") == 0) + t = '"'; + else if (strcmp(prs->entity, "apos") == 0) + t = '\''; + else if (strcmp(prs->entity, "lt") == 0) + t = '<'; + else if (strcmp(prs->entity, "gt") == 0) + t = '>'; + old = pos + 1; + hede[0] = t; + if (prs->cdataHook) { + err = prs->cdataHook (prs->user_data, &hede[0], 1); + if (IKS_OK != err) return err; + } + prs->context = C_CDATA; + } else { + prs->entity[prs->entpos++] = buf[pos]; + if (prs->entpos > 7) return IKS_BADXML; + } + break; + + case C_COMMENT: + if ('-' != c) return IKS_BADXML; + prs->context = C_COMMENT_1; + break; + + case C_COMMENT_1: + if ('-' == c) prs->context = C_COMMENT_2; + break; + + case C_COMMENT_2: + if ('-' == c) + prs->context = C_COMMENT_3; + else + prs->context = C_COMMENT_1; + break; + + case C_COMMENT_3: + if ('>' != c) return IKS_BADXML; + prs->context = C_CDATA; + old = pos + 1; + break; + + case C_MARKUP: + if ('[' == c) { + prs->context = C_SECT; + break; + } + if ('-' == c) { + prs->context = C_COMMENT; + break; + } + prs->context = C_MARKUP_1; + + case C_MARKUP_1: + if ('>' == c) { + old = pos + 1; + prs->context = C_CDATA; + } + break; + + case C_SECT: + if ('C' == c) { + prs->context = C_SECT_CDATA; + break; + } + return IKS_BADXML; + + case C_SECT_CDATA: + if ('D' != c) return IKS_BADXML; + prs->context = C_SECT_CDATA_1; + break; + + case C_SECT_CDATA_1: + if ('A' != c) return IKS_BADXML; + prs->context = C_SECT_CDATA_2; + break; + + case C_SECT_CDATA_2: + if ('T' != c) return IKS_BADXML; + prs->context = C_SECT_CDATA_3; + break; + + case C_SECT_CDATA_3: + if ('A' != c) return IKS_BADXML; + prs->context = C_SECT_CDATA_4; + break; + + case C_SECT_CDATA_4: + if ('[' != c) return IKS_BADXML; + old = pos + 1; + prs->context = C_SECT_CDATA_C; + break; + + case C_SECT_CDATA_C: + if (']' == c) { + prs->context = C_SECT_CDATA_E; + if (prs->cdataHook && old < pos) { + err = prs->cdataHook (prs->user_data, &buf[old], pos - old); + if (IKS_OK != err) return err; + } + } + break; + + case C_SECT_CDATA_E: + if (']' == c) { + prs->context = C_SECT_CDATA_E2; + } else { + if (prs->cdataHook) { + err = prs->cdataHook (prs->user_data, "]", 1); + if (IKS_OK != err) return err; + } + old = pos; + prs->context = C_SECT_CDATA_C; + } + break; + + case C_SECT_CDATA_E2: + if ('>' == c) { + old = pos + 1; + prs->context = C_CDATA; + } else { + if (prs->cdataHook) { + err = prs->cdataHook (prs->user_data, "]]", 2); + if (IKS_OK != err) return err; + } + old = pos; + prs->context = C_SECT_CDATA_C; + } + break; + + case C_PI: + old = pos + 1; + if ('>' == c) prs->context = C_CDATA; + break; + } +cont: + if (0 == re) { + pos++; + prs->nr_bytes++; + if ('\n' == c) prs->nr_lines++; + } + } + + if (stack_old != -1) + STACK_PUSH (buf + stack_old, pos - stack_old); + + err = IKS_OK; + if (prs->cdataHook && (prs->context == C_CDATA || prs->context == C_SECT_CDATA_C) && old < pos) + err = prs->cdataHook (prs->user_data, &buf[old], pos - old); + return err; +} + +int +iks_parse (iksparser *prs, const char *data, size_t len, int finish) +{ + if (!data) return IKS_OK; + if (len == 0) len = strlen (data); + return sax_core (prs, (char *) data, len); +} + +void +iks_parser_reset (iksparser *prs) +{ + if (prs->deleteHook) prs->deleteHook (prs->user_data); + prs->stack_pos = 0; + prs->context = 0; + prs->oldcontext = 0; + prs->tagtype = 0; + prs->attcur = 0; + prs->attflag = 0; + prs->valflag = 0; + prs->entpos = 0; + prs->nr_bytes = 0; + prs->nr_lines = 0; + prs->uni_max = 0; + prs->uni_len = 0; +} + +void +iks_parser_delete (iksparser *prs) +{ + if (prs->deleteHook) prs->deleteHook (prs->user_data); + if (prs->stack) iks_free (prs->stack); + if (prs->atts) iks_free (prs->atts); + if (prs->s) iks_stack_delete (prs->s); else iks_free (prs); +} +/* iksemel (XML parser for Jabber) +** Copyright (C) 2000-2004 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU Lesser General Public License. +*/ + +#include "common.h" +#include "iksemel.h" + +#define IKS_COMMON \ + struct iks_struct *next, *prev; \ + struct iks_struct *parent; \ + enum ikstype type; \ + ikstack *s + +struct iks_struct { + IKS_COMMON; +}; + +struct iks_tag { + IKS_COMMON; + struct iks_struct *children, *last_child; + struct iks_struct *attribs, *last_attrib; + char *name; +}; + +#define IKS_TAG_NAME(x) ((struct iks_tag *) (x) )->name +#define IKS_TAG_CHILDREN(x) ((struct iks_tag *) (x) )->children +#define IKS_TAG_LAST_CHILD(x) ((struct iks_tag *) (x) )->last_child +#define IKS_TAG_ATTRIBS(x) ((struct iks_tag *) (x) )->attribs +#define IKS_TAG_LAST_ATTRIB(x) ((struct iks_tag *) (x) )->last_attrib + +struct iks_cdata { + IKS_COMMON; + char *cdata; + size_t len; +}; + +#define IKS_CDATA_CDATA(x) ((struct iks_cdata *) (x) )->cdata +#define IKS_CDATA_LEN(x) ((struct iks_cdata *) (x) )->len + +struct iks_attrib { + IKS_COMMON; + char *name; + char *value; +}; + +#define IKS_ATTRIB_NAME(x) ((struct iks_attrib *) (x) )->name +#define IKS_ATTRIB_VALUE(x) ((struct iks_attrib *) (x) )->value + +/***** Node Creating & Deleting *****/ + +iks * +iks_new (const char *name) +{ + ikstack *s; + iks *x; + + s = iks_stack_new (sizeof (struct iks_tag) * 6, 256); + if (!s) return NULL; + x = iks_new_within (name, s); + if (!x) { + iks_stack_delete (s); + return NULL; + } + return x; +} + +iks * +iks_new_within (const char *name, ikstack *s) +{ + iks *x; + size_t len; + + if (name) len = sizeof (struct iks_tag); else len = sizeof (struct iks_cdata); + x = iks_stack_alloc (s, len); + if (!x) return NULL; + memset (x, 0, len); + x->s = s; + x->type = IKS_TAG; + if (name) { + IKS_TAG_NAME (x) = iks_stack_strdup (s, name, 0); + if (!IKS_TAG_NAME (x)) return NULL; + } + return x; +} + +iks * +iks_insert (iks *x, const char *name) +{ + iks *y; + + if (!x) return NULL; + + y = iks_new_within (name, x->s); + if (!y) return NULL; + y->parent = x; + if (!IKS_TAG_CHILDREN (x)) IKS_TAG_CHILDREN (x) = y; + if (IKS_TAG_LAST_CHILD (x)) { + IKS_TAG_LAST_CHILD (x)->next = y; + y->prev = IKS_TAG_LAST_CHILD (x); + } + IKS_TAG_LAST_CHILD (x) = y; + return y; +} + +iks * +iks_insert_cdata (iks *x, const char *data, size_t len) +{ + iks *y; + + if(!x || !data) return NULL; + if(len == 0) len = strlen (data); + + y = IKS_TAG_LAST_CHILD (x); + if (y && y->type == IKS_CDATA) { + IKS_CDATA_CDATA (y) = iks_stack_strcat (x->s, IKS_CDATA_CDATA (y), IKS_CDATA_LEN (y), data, len); + IKS_CDATA_LEN (y) += len; + } else { + y = iks_insert (x, NULL); + if (!y) return NULL; + y->type = IKS_CDATA; + IKS_CDATA_CDATA (y) = iks_stack_strdup (x->s, data, len); + if (!IKS_CDATA_CDATA (y)) return NULL; + IKS_CDATA_LEN (y) = len; + } + return y; +} + +iks * +iks_insert_attrib (iks *x, const char *name, const char *value) +{ + iks *y; + size_t len; + + if (!x) return NULL; + + y = IKS_TAG_ATTRIBS (x); + while (y) { + if (strcmp (name, IKS_ATTRIB_NAME (y)) == 0) break; + y = y->next; + } + if (NULL == y) { + if (!value) return NULL; + y = iks_stack_alloc (x->s, sizeof (struct iks_attrib)); + if (!y) return NULL; + memset (y, 0, sizeof (struct iks_attrib)); + y->type = IKS_ATTRIBUTE; + IKS_ATTRIB_NAME (y) = iks_stack_strdup (x->s, name, 0); + y->parent = x; + if (!IKS_TAG_ATTRIBS (x)) IKS_TAG_ATTRIBS (x) = y; + if (IKS_TAG_LAST_ATTRIB (x)) { + IKS_TAG_LAST_ATTRIB (x)->next = y; + y->prev = IKS_TAG_LAST_ATTRIB (x); + } + IKS_TAG_LAST_ATTRIB (x) = y; + } + + if (value) { + len = strlen (value); + IKS_ATTRIB_VALUE (y) = iks_stack_strdup (x->s, value, len); + if (!IKS_ATTRIB_VALUE (y)) return NULL; + } else { + if (y->next) y->next->prev = y->prev; + if (y->prev) y->prev->next = y->next; + if (IKS_TAG_ATTRIBS (x) == y) IKS_TAG_ATTRIBS (x) = y->next; + if (IKS_TAG_LAST_ATTRIB (x) == y) IKS_TAG_LAST_ATTRIB (x) = y->prev; + } + + return y; +} + +iks * +iks_insert_node (iks *x, iks *y) +{ + y->parent = x; + if (!IKS_TAG_CHILDREN (x)) IKS_TAG_CHILDREN (x) = y; + if (IKS_TAG_LAST_CHILD (x)) { + IKS_TAG_LAST_CHILD (x)->next = y; + y->prev = IKS_TAG_LAST_CHILD (x); + } + IKS_TAG_LAST_CHILD (x) = y; + return y; +} + +void +iks_hide (iks *x) +{ + iks *y; + + if (!x) return; + + if (x->prev) x->prev->next = x->next; + if (x->next) x->next->prev = x->prev; + y = x->parent; + if (y) { + if (IKS_TAG_CHILDREN (y) == x) IKS_TAG_CHILDREN (y) = x->next; + if (IKS_TAG_LAST_CHILD (y) == x) IKS_TAG_LAST_CHILD (y) = x->prev; + } +} + +void +iks_delete (iks *x) +{ + if (x) iks_stack_delete (x->s); +} + +/***** Node Traversing *****/ + +iks * +iks_next (iks *x) +{ + if (x) return x->next; + return NULL; +} + +iks * +iks_next_tag (iks *x) +{ + if (x) { + while (1) { + x = x->next; + if (NULL == x) break; + if (IKS_TAG == x->type) return x; + } + } + return NULL; +} + +iks * +iks_prev (iks *x) +{ + if (x) return x->prev; + return NULL; +} + +iks * +iks_prev_tag (iks *x) +{ + if (x) { + while (1) { + x = x->prev; + if (NULL == x) break; + if (IKS_TAG == x->type) return x; + } + } + return NULL; +} + +iks * +iks_parent (iks *x) +{ + if (x) return x->parent; + return NULL; +} + +iks * +iks_root (iks *x) +{ + if (x) { + while (x->parent) + x = x->parent; + } + return x; +} + +iks * +iks_child (iks *x) +{ + if (x) return IKS_TAG_CHILDREN (x); + return NULL; +} + +iks * +iks_first_tag (iks *x) +{ + if (x) { + x = IKS_TAG_CHILDREN (x); + while (x) { + if (IKS_TAG == x->type) return x; + x = x->next; + } + } + return NULL; +} + +iks * +iks_attrib (iks *x) +{ + if (x) return IKS_TAG_ATTRIBS (x); + return NULL; +} + +iks * +iks_find (iks *x, const char *name) +{ + iks *y; + + if (!x) return NULL; + y = IKS_TAG_CHILDREN (x); + while (y) { + if (IKS_TAG == y->type && IKS_TAG_NAME (y) && strcmp (IKS_TAG_NAME (y), name) == 0) return y; + y = y->next; + } + return NULL; +} + +char * +iks_find_cdata (iks *x, const char *name) +{ + iks *y; + + y = iks_find (x, name); + if (!y) return NULL; + y = IKS_TAG_CHILDREN (y); + if (!y || IKS_CDATA != y->type) return NULL; + return IKS_CDATA_CDATA (y); +} + +char * +iks_find_attrib (iks *x, const char *name) +{ + iks *y; + + if (!x) return NULL; + + y = IKS_TAG_ATTRIBS (x); + while (y) { + if (IKS_ATTRIB_NAME (y) && strcmp (IKS_ATTRIB_NAME (y), name) == 0) + return IKS_ATTRIB_VALUE (y); + y = y->next; + } + return NULL; +} + +iks * +iks_find_with_attrib (iks *x, const char *tagname, const char *attrname, const char *value) +{ + iks *y; + + if (NULL == x) return NULL; + + if (tagname) { + for (y = IKS_TAG_CHILDREN (x); y; y = y->next) { + if (IKS_TAG == y->type + && strcmp (IKS_TAG_NAME (y), tagname) == 0 + && iks_strcmp (iks_find_attrib (y, attrname), value) == 0) { + return y; + } + } + } else { + for (y = IKS_TAG_CHILDREN (x); y; y = y->next) { + if (IKS_TAG == y->type + && iks_strcmp (iks_find_attrib (y, attrname), value) == 0) { + return y; + } + } + } + return NULL; +} + +/***** Node Information *****/ + +ikstack * +iks_stack (iks *x) +{ + if (x) return x->s; + return NULL; +} + +enum ikstype +iks_type (iks *x) +{ + if (x) return x->type; + return IKS_NONE; +} + +char * +iks_name (iks *x) +{ + if (x) { + if (IKS_TAG == x->type) + return IKS_TAG_NAME (x); + else + return IKS_ATTRIB_NAME (x); + } + return NULL; +} + +char * +iks_cdata (iks *x) +{ + if (x) { + if (IKS_CDATA == x->type) + return IKS_CDATA_CDATA (x); + else + return IKS_ATTRIB_VALUE (x); + } + return NULL; +} + +size_t +iks_cdata_size (iks *x) +{ + if (x) return IKS_CDATA_LEN (x); + return 0; +} + +int +iks_has_children (iks *x) +{ + if (x && IKS_TAG == x->type && IKS_TAG_CHILDREN (x)) return 1; + return 0; +} + +int +iks_has_attribs (iks *x) +{ + if (x && IKS_TAG == x->type && IKS_TAG_ATTRIBS (x)) return 1; + return 0; +} + +/***** Serializing *****/ + +static size_t +escape_size (char *src, size_t len) +{ + size_t sz; + char c; + int i; + + sz = 0; + for (i = 0; i < len; i++) { + c = src[i]; + switch (c) { + case '&': sz += 5; break; + case '\'': sz += 6; break; + case '"': sz += 6; break; + case '<': sz += 4; break; + case '>': sz += 4; break; + default: sz++; break; + } + } + return sz; +} + +static char * +my_strcat (char *dest, char *src, size_t len) +{ + if (0 == len) len = strlen (src); + memcpy (dest, src, len); + return dest + len; +} + +static char * +escape (char *dest, char *src, size_t len) +{ + char c; + int i; + int j = 0; + + for (i = 0; i < len; i++) { + c = src[i]; + if ('&' == c || '<' == c || '>' == c || '\'' == c || '"' == c) { + if (i - j > 0) dest = my_strcat (dest, src + j, i - j); + j = i + 1; + switch (c) { + case '&': dest = my_strcat (dest, "&", 5); break; + case '\'': dest = my_strcat (dest, "'", 6); break; + case '"': dest = my_strcat (dest, """, 6); break; + case '<': dest = my_strcat (dest, "<", 4); break; + case '>': dest = my_strcat (dest, ">", 4); break; + } + } + } + if (i - j > 0) dest = my_strcat (dest, src + j, i - j); + return dest; +} + +char * +iks_string (ikstack *s, iks *x) +{ + size_t size; + int level, dir; + iks *y, *z; + char *ret, *t; + + if (!x) return NULL; + + if (x->type == IKS_CDATA) { + if (s) { + return iks_stack_strdup (s, IKS_CDATA_CDATA (x), IKS_CDATA_LEN (x)); + } else { + ret = iks_malloc (IKS_CDATA_LEN (x)); + memcpy (ret, IKS_CDATA_CDATA (x), IKS_CDATA_LEN (x)); + return ret; + } + } + + size = 0; + level = 0; + dir = 0; + y = x; + while (1) { + if (dir==0) { + if (y->type == IKS_TAG) { + size++; + size += strlen (IKS_TAG_NAME (y)); + for (z = IKS_TAG_ATTRIBS (y); z; z = z->next) { + size += 4 + strlen (IKS_ATTRIB_NAME (z)) + + escape_size (IKS_ATTRIB_VALUE (z), strlen (IKS_ATTRIB_VALUE (z))); + } + if (IKS_TAG_CHILDREN (y)) { + size++; + y = IKS_TAG_CHILDREN (y); + level++; + continue; + } else { + size += 2; + } + } else { + size += escape_size (IKS_CDATA_CDATA (y), IKS_CDATA_LEN (y)); + } + } + z = y->next; + if (z) { + if (0 == level) { + if (IKS_TAG_CHILDREN (y)) size += 3 + strlen (IKS_TAG_NAME (y)); + break; + } + y = z; + dir = 0; + } else { + y = y->parent; + level--; + if (level >= 0) size += 3 + strlen (IKS_TAG_NAME (y)); + if (level < 1) break; + dir = 1; + } + } + + if (s) ret = iks_stack_alloc (s, size + 1); + else ret = iks_malloc (size + 1); + + if (!ret) return NULL; + + t = ret; + level = 0; + dir = 0; + while (1) { + if (dir==0) { + if (x->type == IKS_TAG) { + *t++ = '<'; + t = my_strcat (t, IKS_TAG_NAME (x), 0); + y = IKS_TAG_ATTRIBS (x); + while (y) { + *t++ = ' '; + t = my_strcat (t, IKS_ATTRIB_NAME (y), 0); + *t++ = '='; + *t++ = '\''; + t = escape (t, IKS_ATTRIB_VALUE (y), strlen (IKS_ATTRIB_VALUE (y))); + *t++ = '\''; + y = y->next; + } + if (IKS_TAG_CHILDREN (x)) { + *t++ = '>'; + x = IKS_TAG_CHILDREN (x); + level++; + continue; + } else { + *t++ = '/'; + *t++ = '>'; + } + } else { + t = escape (t, IKS_CDATA_CDATA (x), IKS_CDATA_LEN (x)); + } + } + y = x->next; + if (y) { + if (0 == level) { + if (IKS_TAG_CHILDREN (x)) { + *t++ = '<'; + *t++ = '/'; + t = my_strcat (t, IKS_TAG_NAME (x), 0); + *t++ = '>'; + } + break; + } + x = y; + dir = 0; + } else { + x = x->parent; + level--; + if (level >= 0) { + *t++ = '<'; + *t++ = '/'; + t = my_strcat (t, IKS_TAG_NAME (x), 0); + *t++ = '>'; + } + if (level < 1) break; + dir = 1; + } + } + *t = '\0'; + + return ret; +} + +/***** Copying *****/ + +iks * +iks_copy_within (iks *x, ikstack *s) +{ + int level=0, dir=0; + iks *copy = NULL; + iks *cur = NULL; + iks *y; + + while (1) { + if (dir == 0) { + if (x->type == IKS_TAG) { + if (copy == NULL) { + copy = iks_new_within (IKS_TAG_NAME (x), s); + cur = copy; + } else { + cur = iks_insert (cur, IKS_TAG_NAME (x)); + } + for (y = IKS_TAG_ATTRIBS (x); y; y = y->next) { + iks_insert_attrib (cur, IKS_ATTRIB_NAME (y), IKS_ATTRIB_VALUE (y)); + } + if (IKS_TAG_CHILDREN (x)) { + x = IKS_TAG_CHILDREN (x); + level++; + continue; + } else { + cur = cur->parent; + } + } else { + iks_insert_cdata (cur, IKS_CDATA_CDATA (x), IKS_CDATA_LEN (x)); + } + } + y = x->next; + if (y) { + if (0 == level) break; + x = y; + dir = 0; + } else { + if (level < 2) break; + level--; + x = x->parent; + cur = cur->parent; + dir = 1; + } + } + return copy; +} + +iks * +iks_copy (iks *x) +{ + return iks_copy_within (x, iks_stack_new (sizeof (struct iks_tag) * 6, 256)); +} +/* iksemel (XML parser for Jabber) +** Copyright (C) 2000-2003 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU Lesser General Public License. +*/ + +#include "common.h" +#include "iksemel.h" + +struct dom_data { + iks **iksptr; + iks *current; + size_t chunk_size; +}; + +static int +tagHook (struct dom_data *data, char *name, char **atts, int type) +{ + iks *x; + + if (IKS_OPEN == type || IKS_SINGLE == type) { + if (data->current) { + x = iks_insert (data->current, name); + } else { + ikstack *s; + s = iks_stack_new (data->chunk_size, data->chunk_size); + x = iks_new_within (name, s); + } + if (atts) { + int i=0; + while (atts[i]) { + iks_insert_attrib (x, atts[i], atts[i+1]); + i += 2; + } + } + data->current = x; + } + if (IKS_CLOSE == type || IKS_SINGLE == type) { + x = iks_parent (data->current); + if (x) + data->current = x; + else { + *(data->iksptr) = data->current; + data->current = NULL; + } + } + return IKS_OK; +} + +static int +cdataHook (struct dom_data *data, char *cdata, size_t len) +{ + if (data->current) iks_insert_cdata (data->current, cdata, len); + return IKS_OK; +} + +static void +deleteHook (struct dom_data *data) +{ + if (data->current) iks_delete (data->current); + data->current = NULL; +} + +iksparser * +iks_dom_new (iks **iksptr) +{ + ikstack *s; + struct dom_data *data; + + *iksptr = NULL; + s = iks_stack_new (DEFAULT_DOM_CHUNK_SIZE, 0); + if (!s) return NULL; + data = iks_stack_alloc (s, sizeof (struct dom_data)); + data->iksptr = iksptr; + data->current = NULL; + data->chunk_size = DEFAULT_DOM_IKS_CHUNK_SIZE; + return iks_sax_extend (s, data, (iksTagHook *) tagHook, (iksCDataHook *) cdataHook, (iksDeleteHook *) deleteHook); +} + +void +iks_set_size_hint (iksparser *prs, size_t approx_size) +{ + size_t cs; + struct dom_data *data = iks_user_data (prs); + + cs = approx_size / 10; + if (cs < DEFAULT_DOM_IKS_CHUNK_SIZE) cs = DEFAULT_DOM_IKS_CHUNK_SIZE; + data->chunk_size = cs; +} + +iks * +iks_tree (const char *xml_str, size_t len, int *err) +{ + iksparser *prs; + iks *x; + int e; + + if (0 == len) len = strlen (xml_str); + prs = iks_dom_new (&x); + if (!prs) { + if (err) *err = IKS_NOMEM; + return NULL; + } + e = iks_parse (prs, xml_str, len, 1); + if (err) *err = e; + iks_parser_delete (prs); + return x; +} + +int +iks_load (const char *fname, iks **xptr) +{ + iksparser *prs; + char *buf; + FILE *f; + int len, done = 0; + int ret; + + *xptr = NULL; + + buf = iks_malloc (FILE_IO_BUF_SIZE); + if (!buf) return IKS_NOMEM; + ret = IKS_NOMEM; + prs = iks_dom_new (xptr); + if (prs) { + f = fopen (fname, "r"); + if (f) { + while (0 == done) { + len = fread (buf, 1, FILE_IO_BUF_SIZE, f); + if (len < FILE_IO_BUF_SIZE) { + if (0 == feof (f)) { + ret = IKS_FILE_RWERR; + len = 0; + } + done = 1; + } + if (len > 0) { + int e; + e = iks_parse (prs, buf, len, done); + if (IKS_OK != e) { + ret = e; + break; + } + if (done) ret = IKS_OK; + } + } + fclose (f); + } else { + if (ENOENT == errno) ret = IKS_FILE_NOFILE; + else ret = IKS_FILE_NOACCESS; + } + iks_parser_delete (prs); + } + iks_free (buf); + return ret; +} + +int +iks_save (const char *fname, iks *x) +{ + FILE *f; + char *data; + int ret; + + ret = IKS_NOMEM; + data = iks_string (NULL, x); + if (data) { + ret = IKS_FILE_NOACCESS; + f = fopen (fname, "w"); + if (f) { + ret = IKS_FILE_RWERR; + if (fputs (data, f) >= 0) ret = IKS_OK; + fclose (f); + } + iks_free (data); + } + return ret; +} diff --git a/backend/impress/iksemel.h b/backend/impress/iksemel.h new file mode 100644 index 00000000..66c87d61 --- /dev/null +++ b/backend/impress/iksemel.h @@ -0,0 +1,402 @@ +/* iksemel (XML parser for Jabber) +** Copyright (C) 2000-2004 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU Lesser General Public License. +*/ + +#ifndef IKSEMEL_H +#define IKSEMEL_H 1 + +#ifdef __cplusplus +#include /* size_t for C++ */ +extern "C" { +#else +#include /* size_t for C */ +#endif + +/***** object stack *****/ + +struct ikstack_struct; +typedef struct ikstack_struct ikstack; + +ikstack *iks_stack_new (size_t meta_chunk, size_t data_chunk); +void *iks_stack_alloc (ikstack *s, size_t size); +char *iks_stack_strdup (ikstack *s, const char *src, size_t len); +char *iks_stack_strcat (ikstack *s, char *old, size_t old_len, const char *src, size_t src_len); +void iks_stack_stat (ikstack *s, size_t *allocated, size_t *used); +void iks_stack_delete (ikstack *s); + +/***** utilities *****/ + +void *iks_malloc (size_t size); +void iks_free (void *ptr); +void iks_set_mem_funcs (void *(*malloc_func)(size_t size), void (*free_func)(void *ptr)); + +char *iks_strdup (const char *src); +char *iks_strcat (char *dest, const char *src); +int iks_strcmp (const char *a, const char *b); +int iks_strcasecmp (const char *a, const char *b); +int iks_strncmp (const char *a, const char *b, size_t n); +int iks_strncasecmp (const char *a, const char *b, size_t n); +size_t iks_strlen (const char *src); +char *iks_escape (ikstack *s, char *src, size_t len); +char *iks_unescape (ikstack *s, char *src, size_t len); + +/***** dom tree *****/ + +enum ikstype { + IKS_NONE = 0, + IKS_TAG, + IKS_ATTRIBUTE, + IKS_CDATA +}; + +struct iks_struct; +typedef struct iks_struct iks; + +iks *iks_new (const char *name); +iks *iks_new_within (const char *name, ikstack *s); +iks *iks_insert (iks *x, const char *name); +iks *iks_insert_cdata (iks *x, const char *data, size_t len); +iks *iks_insert_attrib (iks *x, const char *name, const char *value); +iks *iks_insert_node (iks *x, iks *y); +void iks_hide (iks *x); +void iks_delete (iks *x); +iks *iks_next (iks *x); +iks *iks_next_tag (iks *x); +iks *iks_prev (iks *x); +iks *iks_prev_tag (iks *x); +iks *iks_parent (iks *x); +iks *iks_root (iks *x); +iks *iks_child (iks *x); +iks *iks_first_tag (iks *x); +iks *iks_attrib (iks *x); +iks *iks_find (iks *x, const char *name); +char *iks_find_cdata (iks *x, const char *name); +char *iks_find_attrib (iks *x, const char *name); +iks *iks_find_with_attrib (iks *x, const char *tagname, const char *attrname, const char *value); +ikstack *iks_stack (iks *x); +enum ikstype iks_type (iks *x); +char *iks_name (iks *x); +char *iks_cdata (iks *x); +size_t iks_cdata_size (iks *x); +int iks_has_children (iks *x); +int iks_has_attribs (iks *x); +char *iks_string (ikstack *s, iks *x); +iks *iks_copy (iks *x); +iks *iks_copy_within (iks *x, ikstack *s); + +/***** sax parser *****/ + +enum ikserror { + IKS_OK = 0, + IKS_NOMEM, + IKS_BADXML, + IKS_HOOK +}; + +enum ikstagtype { + IKS_OPEN, + IKS_CLOSE, + IKS_SINGLE +}; + +typedef int (iksTagHook)(void *user_data, char *name, char **atts, int type); +typedef int (iksCDataHook)(void *user_data, char *data, size_t len); +typedef void (iksDeleteHook)(void *user_data); + +struct iksparser_struct; +typedef struct iksparser_struct iksparser; + +iksparser *iks_sax_new (void *user_data, iksTagHook *tagHook, iksCDataHook *cdataHook); +iksparser *iks_sax_extend (ikstack *s, void *user_data, iksTagHook *tagHook, iksCDataHook *cdataHook, iksDeleteHook *deleteHook); +ikstack *iks_parser_stack (iksparser *prs); +void *iks_user_data (iksparser *prs); +unsigned long iks_nr_bytes (iksparser *prs); +unsigned long iks_nr_lines (iksparser *prs); +int iks_parse (iksparser *prs, const char *data, size_t len, int finish); +void iks_parser_reset (iksparser *prs); +void iks_parser_delete (iksparser *prs); + +/***** dom parser *****/ + +enum iksfileerror { + IKS_FILE_NOFILE = 4, + IKS_FILE_NOACCESS, + IKS_FILE_RWERR +}; + +iksparser *iks_dom_new (iks **iksptr); +void iks_set_size_hint (iksparser *prs, size_t approx_size); +iks *iks_tree (const char *xml_str, size_t len, int *err); +int iks_load (const char *fname, iks **xptr); +int iks_save (const char *fname, iks *x); + +/***** transport layer *****/ + +typedef void (iksTClose)(void *socket); +typedef int (iksTConnect)(iksparser *prs, void **socketptr, const char *server, int port); +typedef int (iksTSend)(void *socket, const char *data, size_t len); +typedef int (iksTRecv)(void *socket, char *buffer, size_t buf_len, int timeout); +typedef int (iksTConnectFD)(iksparser *prs, void **socketptr, void *fd); +typedef void *(iksTGetFD)(void *socket); + +enum iksasyncevents { + IKS_ASYNC_RESOLVED, + IKS_ASYNC_CONNECTED, + IKS_ASYNC_WRITE, + IKS_ASYNC_WRITTEN, + IKS_ASYNC_READ, + IKS_ASYNC_CLOSED, + IKS_ASYNC_ERROR +}; + +typedef int (iksAsyncNotify)(void *user_data, int event, void *event_data); +typedef int (iksTConnectAsync)(iksparser *prs, void **socketptr, const char *server, int port, void *notify_data, iksAsyncNotify *notify_func); + +typedef struct ikstransport_struct { + /* basic api, connect can be NULL if one of the other connect funcs are used */ + iksTConnect *connect; + iksTSend *send; + iksTRecv *recv; + iksTClose *close; + /* optional fd api */ + iksTConnectFD *connect_fd; + iksTGetFD *get_fd; + /* optional async api */ + iksTConnectAsync *connect_async; +} ikstransport; + +extern ikstransport iks_default_transport; + +/***** stream parser *****/ + +enum iksneterror { + IKS_NET_NODNS = 4, + IKS_NET_NOSOCK, + IKS_NET_NOCONN, + IKS_NET_RWERR, + IKS_NET_NOTSUPP, + IKS_NET_TLSFAIL +}; + +enum iksnodetype { + IKS_NODE_START, + IKS_NODE_NORMAL, + IKS_NODE_ERROR, + IKS_NODE_STOP +}; + +enum ikssasltype { + IKS_SASL_PLAIN, + IKS_SASL_DIGEST_MD5 +}; + +#define IKS_JABBER_PORT 5222 + +typedef int (iksStreamHook)(void *user_data, int type, iks *node); +typedef void (iksLogHook)(void *user_data, const char *data, size_t size, int is_incoming); + +iksparser *iks_stream_new (char *name_space, void *user_data, iksStreamHook *streamHook); +void *iks_stream_user_data (iksparser *prs); +void iks_set_log_hook (iksparser *prs, iksLogHook *logHook); +int iks_connect_tcp (iksparser *prs, const char *server, int port); +int iks_connect_fd (iksparser *prs, int fd); +int iks_connect_via (iksparser *prs, const char *server, int port, const char *server_name); +int iks_connect_with (iksparser *prs, const char *server, int port, const char *server_name, ikstransport *trans); +int iks_connect_async (iksparser *prs, const char *server, int port, void *notify_data, iksAsyncNotify *notify_func); +int iks_connect_async_with (iksparser *prs, const char *server, int port, const char *server_name, ikstransport *trans, void *notify_data, iksAsyncNotify *notify_func); +int iks_fd (iksparser *prs); +int iks_recv (iksparser *prs, int timeout); +int iks_send_header (iksparser *prs, const char *to); +int iks_send (iksparser *prs, iks *x); +int iks_send_raw (iksparser *prs, const char *xmlstr); +void iks_disconnect (iksparser *prs); +int iks_has_tls (void); +int iks_is_secure (iksparser *prs); +int iks_start_tls (iksparser *prs); +int iks_start_sasl (iksparser *prs, enum ikssasltype type, char *username, char *pass); + +/***** jabber *****/ + +#define IKS_NS_CLIENT "jabber:client" +#define IKS_NS_SERVER "jabber:server" +#define IKS_NS_AUTH "jabber:iq:auth" +#define IKS_NS_AUTH_0K "jabber:iq:auth:0k" +#define IKS_NS_REGISTER "jabber:iq:register" +#define IKS_NS_ROSTER "jabber:iq:roster" +#define IKS_NS_XROSTER "jabber:x:roster" +#define IKS_NS_OFFLINE "jabber:x:offline" +#define IKS_NS_AGENT "jabber:iq:agent" +#define IKS_NS_AGENTS "jabber:iq:agents" +#define IKS_NS_BROWSE "jabber:iq:browse" +#define IKS_NS_CONFERENCE "jabber:iq:conference" +#define IKS_NS_DELAY "jabber:x:delay" +#define IKS_NS_VERSION "jabber:iq:version" +#define IKS_NS_TIME "jabber:iq:time" +#define IKS_NS_VCARD "vcard-temp" +#define IKS_NS_PRIVATE "jabber:iq:private" +#define IKS_NS_SEARCH "jabber:iq:search" +#define IKS_NS_OOB "jabber:iq:oob" +#define IKS_NS_XOOB "jabber:x:oob" +#define IKS_NS_ADMIN "jabber:iq:admin" +#define IKS_NS_FILTER "jabber:iq:filter" +#define IKS_NS_GATEWAY "jabber:iq:gateway" +#define IKS_NS_LAST "jabber:iq:last" +#define IKS_NS_SIGNED "jabber:x:signed" +#define IKS_NS_ENCRYPTED "jabber:x:encrypted" +#define IKS_NS_ENVELOPE "jabber:x:envelope" +#define IKS_NS_EVENT "jabber:x:event" +#define IKS_NS_EXPIRE "jabber:x:expire" +#define IKS_NS_XHTML "http://www.w3.org/1999/xhtml" +#define IKS_NS_XMPP_SASL "urn:ietf:params:xml:ns:xmpp-sasl" +#define IKS_NS_XMPP_BIND "urn:ietf:params:xml:ns:xmpp-bind" +#define IKS_NS_XMPP_SESSION "urn:ietf:params:xml:ns:xmpp-session" + +#define IKS_ID_USER 1 +#define IKS_ID_SERVER 2 +#define IKS_ID_RESOURCE 4 +#define IKS_ID_PARTIAL IKS_ID_USER | IKS_ID_SERVER +#define IKS_ID_FULL IKS_ID_USER | IKS_ID_SERVER | IKS_ID_RESOURCE + +#define IKS_STREAM_STARTTLS 1 +#define IKS_STREAM_SESSION 2 +#define IKS_STREAM_BIND 4 +#define IKS_STREAM_SASL_PLAIN 8 +#define IKS_STREAM_SASL_MD5 16 + +typedef struct iksid_struct { + char *user; + char *server; + char *resource; + char *partial; + char *full; +} iksid; + +iksid *iks_id_new (ikstack *s, const char *jid); +int iks_id_cmp (iksid *a, iksid *b, int parts); + +enum ikspaktype { + IKS_PAK_NONE = 0, + IKS_PAK_MESSAGE, + IKS_PAK_PRESENCE, + IKS_PAK_IQ, + IKS_PAK_S10N +}; + +enum iksubtype { + IKS_TYPE_NONE = 0, + IKS_TYPE_ERROR, + + IKS_TYPE_CHAT, + IKS_TYPE_GROUPCHAT, + IKS_TYPE_HEADLINE, + + IKS_TYPE_GET, + IKS_TYPE_SET, + IKS_TYPE_RESULT, + + IKS_TYPE_SUBSCRIBE, + IKS_TYPE_SUBSCRIBED, + IKS_TYPE_UNSUBSCRIBE, + IKS_TYPE_UNSUBSCRIBED, + IKS_TYPE_PROBE, + IKS_TYPE_AVAILABLE, + IKS_TYPE_UNAVAILABLE +}; + +enum ikshowtype { + IKS_SHOW_UNAVAILABLE = 0, + IKS_SHOW_AVAILABLE, + IKS_SHOW_CHAT, + IKS_SHOW_AWAY, + IKS_SHOW_XA, + IKS_SHOW_DND +}; + +typedef struct ikspak_struct { + iks *x; + iksid *from; + iks *query; + char *ns; + char *id; + enum ikspaktype type; + enum iksubtype subtype; + enum ikshowtype show; +} ikspak; + +ikspak *iks_packet (iks *x); + +iks *iks_make_auth (iksid *id, const char *pass, const char *sid); +iks *iks_make_msg (enum iksubtype type, const char *to, const char *body); +iks *iks_make_s10n (enum iksubtype type, const char *to, const char *msg); +iks *iks_make_pres (enum ikshowtype show, const char *status); +iks *iks_make_iq (enum iksubtype type, const char *xmlns); +iks *iks_make_resource_bind(iksid *id); +iks *iks_make_session(void); +int iks_stream_features(iks *x); + +/***** jabber packet filter *****/ + +#define IKS_RULE_DONE 0 +#define IKS_RULE_ID 1 +#define IKS_RULE_TYPE 2 +#define IKS_RULE_SUBTYPE 4 +#define IKS_RULE_FROM 8 +#define IKS_RULE_FROM_PARTIAL 16 +#define IKS_RULE_NS 32 + +enum iksfilterret { + IKS_FILTER_PASS, + IKS_FILTER_EAT +}; + +typedef int (iksFilterHook)(void *user_data, ikspak *pak); + +struct iksfilter_struct; +typedef struct iksfilter_struct iksfilter; +struct iksrule_struct; +typedef struct iksrule_struct iksrule; + +iksfilter *iks_filter_new (void); +iksrule *iks_filter_add_rule (iksfilter *f, iksFilterHook *filterHook, void *user_data, ...); +void iks_filter_remove_rule (iksfilter *f, iksrule *rule); +void iks_filter_remove_hook (iksfilter *f, iksFilterHook *filterHook); +void iks_filter_packet (iksfilter *f, ikspak *pak); +void iks_filter_delete (iksfilter *f); + +/***** sha1 *****/ + +struct iksha_struct; +typedef struct iksha_struct iksha; + +iksha *iks_sha_new (void); +void iks_sha_reset (iksha *sha); +void iks_sha_hash (iksha *sha, const unsigned char *data, size_t len, int finish); +void iks_sha_print (iksha *sha, char *hash); +void iks_sha_delete (iksha *sha); +void iks_sha (const char *data, char *hash); + +/***** md5 *****/ + +struct ikmd5_struct; +typedef struct iksmd5_struct iksmd5; + +iksmd5 *iks_md5_new(void); +void iks_md5_reset(iksmd5 *md5); +void iks_md5_hash(iksmd5 *md5, const unsigned char *data, size_t slen, int finish); +void iks_md5_delete(iksmd5 *md5); +void iks_md5_print(iksmd5 *md5, char *buf); +void iks_md5_digest(iksmd5 *md5, unsigned char *digest); +void iks_md5(const char *data, char *buf); + +/***** base64 *****/ + +char *iks_base64_decode(const char *buf); +char *iks_base64_encode(const char *buf, int len); + +#ifdef __cplusplus +} +#endif + +#endif /* IKSEMEL_H */ diff --git a/backend/impress/imposter.h b/backend/impress/imposter.h new file mode 100644 index 00000000..50c87f2c --- /dev/null +++ b/backend/impress/imposter.h @@ -0,0 +1,84 @@ +/* imposter (OO.org Impress viewer) +** Copyright (C) 2003-2005 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU General Public License. +*/ + +#ifndef IMPOSTER_H +#define IMPOSTER_H + +#include + +enum { + IMP_OK = 0, + IMP_NOMEM, + IMP_NOTZIP, + IMP_BADZIP, + IMP_BADDOC, + IMP_NOTIMP +}; + +struct ImpDoc_struct; +typedef struct ImpDoc_struct ImpDoc; + +struct ImpPage_struct; +typedef struct ImpPage_struct ImpPage; + +typedef struct ImpPointStruct { + int x; + int y; +} ImpPoint; + +typedef struct ImpColorStruct { + int red; + int green; + int blue; +} ImpColor; + +#define IMP_NORMAL 0 +#define IMP_BOLD 1 +#define IMP_ITALIC 2 +#define IMP_UNDERLINE 4 + +typedef struct ImpDrawer_struct { + void (*get_size)(void *drw_data, int *w, int *h); + void (*set_fg_color)(void *drw_data, ImpColor *color); + void (*draw_line)(void *drw_data, int x1, int y1, int x2, int y2); + void (*draw_rect)(void *drw_data, int fill, int x, int y, int w, int h); + void (*draw_polygon)(void *drw_data, int fill, ImpPoint *pts, int nr_pts); + void (*draw_arc)(void *drw_data, int fill, int x, int y, int w, int h, int sa, int ea); + void (*draw_bezier)(void *drw_data, int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3); + void *(*open_image)(void *drw_data, const unsigned char *pix, size_t size); + void (*get_image_size)(void *drw_data, void *img_data, int *w, int *h); + void *(*scale_image)(void *drw_data, void *img_data, int w, int h); + void (*draw_image)(void *drw_data, void *img_data, int x, int y, int w, int h); + void (*close_image)(void *drw_data, void *img_data); + void (*get_text_size)(void *drw_data, const char *text, size_t len, int size, int styles, int *w, int *h); + void (*draw_text)(void *drw_data, int x, int y, const char *text, size_t len, int size, int styles); +} ImpDrawer; + +struct ImpRenderCtx_struct; +typedef struct ImpRenderCtx_struct ImpRenderCtx; + +#define IMP_LAST_PAGE -1 + +ImpDoc *imp_open(const char *filename, int *err); +int imp_nr_pages(ImpDoc *doc); +ImpPage *imp_get_page(ImpDoc *doc, int page_no); +void imp_close(ImpDoc *doc); + +void *imp_get_xml(ImpDoc *doc, const char *filename); + +ImpPage *imp_next_page(ImpPage *page); +ImpPage *imp_prev_page(ImpPage *page); +int imp_get_page_no(ImpPage *page); +const char *imp_get_page_name(ImpPage *page); + +ImpRenderCtx *imp_create_context(const ImpDrawer *drw); +void imp_context_set_page(ImpRenderCtx *ctx, ImpPage *page); +void imp_context_set_step(ImpRenderCtx *ctx, int step); +void imp_render(ImpRenderCtx *ctx, void *drw_data); +void imp_delete_context(ImpRenderCtx *ctx); + + +#endif /* IMPOSTER_H */ diff --git a/backend/impress/impress-document.c b/backend/impress/impress-document.c new file mode 100644 index 00000000..5254a881 --- /dev/null +++ b/backend/impress/impress-document.c @@ -0,0 +1,548 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */ +/* + * Copyright (C) 2005, Jonathan Blandford + * Copyright (C) 2005, Bastien Nocera + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "config.h" + +#include + +#include +#include + +#include "imposter.h" +#include "impress-document.h" + +#include "ev-document-misc.h" +#include "ev-document-thumbnails.h" + +struct _ImpressDocumentClass +{ + EvDocumentClass parent_class; +}; + +struct _ImpressDocument +{ + EvDocument parent_instance; + + ImpDoc *imp; + ImpRenderCtx *ctx; + + GMutex *mutex; + GdkPixmap *pixmap; + GdkGC *gc; + PangoContext *pango_ctx; + + /* Only used while rendering inside the mainloop */ + int pagenum; + GdkPixbuf *pixbuf; + GCond *cond; +}; + +#define PAGE_WIDTH 1024 +#define PAGE_HEIGHT 768 + +typedef struct _ImpressDocumentClass ImpressDocumentClass; + +static void impress_document_document_thumbnails_iface_init (EvDocumentThumbnailsInterface *iface); + +EV_BACKEND_REGISTER_WITH_CODE (ImpressDocument, impress_document, + { + EV_BACKEND_IMPLEMENT_INTERFACE (EV_TYPE_DOCUMENT_THUMBNAILS, + impress_document_document_thumbnails_iface_init); + }); + +/* Renderer */ +static void +imp_render_draw_bezier_real (GdkDrawable *d, GdkGC *gc, int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3) +{ + int x, y, nx, ny; + int ax, bx, cx, ay, by, cy; + double t, t2, t3; + + x = x0; + y = y0; + + cx = 3 * (x1 - x0); + bx = 3 * (x2 - x1) - cx; + ax = x3 - x0 - cx - bx; + cy = 3 * (y1 - y0); + by = 3 * (y2 - y1) - cy; + ay = y3 - y0 - cy - by; + + for (t = 0; t < 1; t += 0.01) { + t2 = t * t; + t3 = t2 * t; + nx = ax * t3 + bx * t2 + cx * t + x0; + ny = ay * t3 + by * t2 + cy * t + y0; + gdk_draw_line (d, gc, x, y, nx, ny); + x = nx; + y = ny; + } +} + +static void +imp_render_get_size(void *drw_data, int *w, int *h) +{ + ImpressDocument *impress_document = IMPRESS_DOCUMENT (drw_data); + + #if GTK_CHECK_VERSION(3, 0, 0) + *w = gdk_window_get_width(impress_document->pixmap); + *h = gdk_window_get_height(impress_document->pixmap); + #else + gdk_drawable_get_size(impress_document->pixmap, w, h); + #endif +} + +static void +imp_render_set_fg_color(void *drw_data, ImpColor *color) +{ + ImpressDocument *impress_document = IMPRESS_DOCUMENT (drw_data); + GdkColor c; + + c.red = color->red; + c.green = color->green; + c.blue = color->blue; + gdk_gc_set_rgb_fg_color(impress_document->gc, &c); +} + +static void +imp_render_draw_line(void *drw_data, int x1, int y1, int x2, int y2) +{ + ImpressDocument *impress_document = IMPRESS_DOCUMENT (drw_data); + + gdk_draw_line(impress_document->pixmap, impress_document->gc, x1, y1, x2, y2); +} + +static void +imp_render_draw_rect(void *drw_data, int fill, int x, int y, int w, int h) +{ + ImpressDocument *impress_document = IMPRESS_DOCUMENT (drw_data); + + gdk_draw_rectangle(impress_document->pixmap, impress_document->gc, fill, x, y, w, h); +} + +static void +imp_render_draw_polygon(void *drw_data, int fill, ImpPoint *pts, int nr_pts) +{ + ImpressDocument *impress_document = IMPRESS_DOCUMENT (drw_data); + + gdk_draw_polygon(impress_document->pixmap, impress_document->gc, fill, (GdkPoint *)pts, nr_pts); +} + +static void +imp_render_draw_arc(void *drw_data, int fill, int x, int y, int w, int h, int sa, int ea) +{ + ImpressDocument *impress_document = IMPRESS_DOCUMENT (drw_data); + + gdk_draw_arc(impress_document->pixmap, impress_document->gc, fill, x, y, w, h, sa * 64, ea * 64); +} + +static void +imp_render_draw_bezier(void *drw_data, int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3) +{ + ImpressDocument *impress_document = IMPRESS_DOCUMENT (drw_data); + + imp_render_draw_bezier_real (impress_document->pixmap, impress_document->gc, x0, y0, x1, y1, x2, y2, x3, y3); +} + +static void * +imp_render_open_image(void *drw_data, const unsigned char *pix, size_t size) +{ + GdkPixbufLoader *gpl; + GdkPixbuf *pb; + + gpl = gdk_pixbuf_loader_new(); + gdk_pixbuf_loader_write(gpl, pix, size, NULL); + gdk_pixbuf_loader_close(gpl, NULL); + pb = gdk_pixbuf_loader_get_pixbuf(gpl); + return pb; +} + +static void +imp_render_get_image_size(void *drw_data, void *img_data, int *w, int *h) +{ + GdkPixbuf *pb = (GdkPixbuf *) img_data; + + *w = gdk_pixbuf_get_width(pb); + *h = gdk_pixbuf_get_height(pb); +} + +static void * +imp_render_scale_image(void *drw_data, void *img_data, int w, int h) +{ + GdkPixbuf *pb = (GdkPixbuf *) img_data; + + return gdk_pixbuf_scale_simple(pb, w, h, GDK_INTERP_BILINEAR); +} + +static void +imp_render_draw_image(void *drw_data, void *img_data, int x, int y, int w, int h) +{ + ImpressDocument *impress_document = IMPRESS_DOCUMENT (drw_data); + GdkPixbuf *pb = (GdkPixbuf *) img_data; + + gdk_draw_pixbuf(impress_document->pixmap, impress_document->gc, pb, 0, 0, x, y, w, h, GDK_RGB_DITHER_NONE, 0, 0); +} + +static void +imp_render_close_image(void *drw_data, void *img_data) +{ + GdkPixbuf *pb = (GdkPixbuf *) img_data; + + g_object_unref(G_OBJECT(pb)); +} + +static char * +imp_render_markup(const char *text, size_t len, int styles, int size) +{ + double scr_mm, scr_px, dpi; + char *esc; + char *ret; + int sz; + + scr_mm = gdk_screen_get_height_mm(gdk_screen_get_default()); + scr_px = gdk_screen_get_height(gdk_screen_get_default()); + dpi = (scr_px / scr_mm) * 25.4; + sz = (int) ((double) size * 72.0 * PANGO_SCALE / dpi); + esc = g_markup_escape_text(text, len); + ret = g_strdup_printf("%s", sz, esc); + g_free(esc); + return ret; +} + +static void +imp_render_get_text_size(void *drw_data, const char *text, size_t len, int size, int styles, int *w, int *h) +{ + ImpressDocument *impress_document = IMPRESS_DOCUMENT (drw_data); + PangoLayout *lay; + int pw, ph; + char *m; + + g_return_if_fail (impress_document->pango_ctx != NULL); + + lay = pango_layout_new(impress_document->pango_ctx); + m = imp_render_markup(text, len, styles, size); + pango_layout_set_markup(lay, m, strlen(m)); + pango_layout_get_size(lay, &pw, &ph); + g_object_unref(lay); + g_free(m); + *w = pw / PANGO_SCALE; + *h = ph / PANGO_SCALE; +} + +static void +imp_render_draw_text(void *drw_data, int x, int y, const char *text, size_t len, int size, int styles) +{ + ImpressDocument *impress_document = IMPRESS_DOCUMENT (drw_data); + PangoLayout *lay; + char *m; + + g_return_if_fail (impress_document->pango_ctx != NULL); + + lay = pango_layout_new(impress_document->pango_ctx); + m = imp_render_markup(text, len, styles, size); + pango_layout_set_markup(lay, m, strlen(m)); + gdk_draw_layout(impress_document->pixmap, impress_document->gc, x, y, lay); + g_object_unref(lay); + g_free(m); +} + +static const ImpDrawer imp_render_functions = { + imp_render_get_size, + imp_render_set_fg_color, + imp_render_draw_line, + imp_render_draw_rect, + imp_render_draw_polygon, + imp_render_draw_arc, + imp_render_draw_bezier, + imp_render_open_image, + imp_render_get_image_size, + imp_render_scale_image, + imp_render_draw_image, + imp_render_close_image, + imp_render_get_text_size, + imp_render_draw_text +}; + +/* Document interface */ +static gboolean +impress_document_load (EvDocument *document, + const char *uri, + GError **error) +{ + ImpressDocument *impress_document = IMPRESS_DOCUMENT (document); + gchar *filename; + ImpDoc *imp; + int err; + + /* FIXME: Could we actually load uris ? */ + filename = g_filename_from_uri (uri, NULL, error); + if (!filename) + return FALSE; + + imp = imp_open (filename, &err); + g_free (filename); + + if (!imp) + { + g_set_error_literal (error, + EV_DOCUMENT_ERROR, + EV_DOCUMENT_ERROR_INVALID, + _("Invalid document")); + return FALSE; + } + impress_document->imp = imp; + + return TRUE; +} + +static gboolean +impress_document_save (EvDocument *document, + const char *uri, + GError **error) +{ + g_set_error_literal (error, + EV_DOCUMENT_ERROR, + EV_DOCUMENT_ERROR_INVALID, + "Not supported"); + return FALSE; +} + +static int +impress_document_get_n_pages (EvDocument *document) +{ + ImpressDocument *impress_document = IMPRESS_DOCUMENT (document); + + g_return_val_if_fail (IMPRESS_IS_DOCUMENT (document), 0); + g_return_val_if_fail (impress_document->imp != NULL, 0); + + return imp_nr_pages (impress_document->imp); +} + +static void +impress_document_get_page_size (EvDocument *document, + EvPage *page, + double *width, + double *height) +{ + ImpressDocument *impress_document = IMPRESS_DOCUMENT (document); + + g_return_if_fail (IMPRESS_IS_DOCUMENT (document)); + g_return_if_fail (impress_document->imp != NULL); + + //FIXME + *width = PAGE_WIDTH; + *height = PAGE_HEIGHT; +} + +static gboolean +imp_render_get_from_drawable (ImpressDocument *impress_document) +{ + ImpPage *page; + + page = imp_get_page (impress_document->imp, impress_document->pagenum); + + g_return_val_if_fail (page != NULL, FALSE); + + ev_document_doc_mutex_lock (); + imp_context_set_page (impress_document->ctx, page); + imp_render (impress_document->ctx, impress_document); + ev_document_doc_mutex_unlock (); + + impress_document->pixbuf = gdk_pixbuf_get_from_drawable (NULL, + GDK_DRAWABLE (impress_document->pixmap), + NULL, + 0, 0, + 0, 0, + PAGE_WIDTH, PAGE_HEIGHT); + + g_cond_broadcast (impress_document->cond); + return FALSE; +} + +static GdkPixbuf * +impress_document_render_pixbuf (EvDocument *document, + EvRenderContext *rc) +{ + ImpressDocument *impress_document = IMPRESS_DOCUMENT (document); + GdkPixbuf *pixbuf; + + g_return_val_if_fail (IMPRESS_IS_DOCUMENT (document), NULL); + g_return_val_if_fail (impress_document->imp != NULL, NULL); + + impress_document->pagenum = rc->page->index; + + g_mutex_lock (impress_document->mutex); + impress_document->cond = g_cond_new (); + + ev_document_fc_mutex_unlock (); + ev_document_doc_mutex_unlock (); + g_idle_add ((GSourceFunc) imp_render_get_from_drawable, impress_document); + g_cond_wait (impress_document->cond, impress_document->mutex); + g_cond_free (impress_document->cond); + ev_document_doc_mutex_lock (); + ev_document_fc_mutex_lock (); + + g_mutex_unlock (impress_document->mutex); + + pixbuf = impress_document->pixbuf; + impress_document->pixbuf = NULL; + + return pixbuf; +} + +static cairo_surface_t * +impress_document_render (EvDocument *document, + EvRenderContext *rc) +{ + GdkPixbuf *pixbuf; + cairo_surface_t *surface, *scaled_surface; + + pixbuf = impress_document_render_pixbuf (document, rc); + + /* FIXME: impress backend should be ported to cairo */ + surface = ev_document_misc_surface_from_pixbuf (pixbuf); + g_object_unref (pixbuf); + + scaled_surface = ev_document_misc_surface_rotate_and_scale (surface, + (PAGE_WIDTH * rc->scale) + 0.5, + (PAGE_HEIGHT * rc->scale) + 0.5, + rc->rotation); + cairo_surface_destroy (surface); + + return scaled_surface; +} + +static void +impress_document_finalize (GObject *object) +{ + ImpressDocument *impress_document = IMPRESS_DOCUMENT (object); + + if (impress_document->mutex) + g_mutex_free (impress_document->mutex); + + if (impress_document->imp) + imp_close (impress_document->imp); + + if (impress_document->ctx) + imp_delete_context (impress_document->ctx); + + if (impress_document->pango_ctx) + g_object_unref (impress_document->pango_ctx); + + if (impress_document->pixmap) + g_object_unref (G_OBJECT (impress_document->pixmap)); + + if (impress_document->gc) + g_object_unref (impress_document->gc); + + G_OBJECT_CLASS (impress_document_parent_class)->finalize (object); +} + +static void +impress_document_class_init (ImpressDocumentClass *klass) +{ + GObjectClass *gobject_class = G_OBJECT_CLASS (klass); + EvDocumentClass *ev_document_class = EV_DOCUMENT_CLASS (klass); + + gobject_class->finalize = impress_document_finalize; + + ev_document_class->load = impress_document_load; + ev_document_class->save = impress_document_save; + ev_document_class->get_n_pages = impress_document_get_n_pages; + ev_document_class->get_page_size = impress_document_get_page_size; + ev_document_class->render = impress_document_render; +} + +static GdkPixbuf * +impress_document_thumbnails_get_thumbnail (EvDocumentThumbnails *document, + EvRenderContext *rc, + gboolean border) +{ + GdkPixbuf *pixbuf; + GdkPixbuf *scaled_pixbuf; + + pixbuf = impress_document_render_pixbuf (EV_DOCUMENT (document), rc); + scaled_pixbuf = gdk_pixbuf_scale_simple (pixbuf, + (PAGE_WIDTH * rc->scale), + (PAGE_HEIGHT * rc->scale), + GDK_INTERP_BILINEAR); + g_object_unref (pixbuf); + + if (border) + { + GdkPixbuf *tmp_pixbuf = scaled_pixbuf; + + scaled_pixbuf = ev_document_misc_get_thumbnail_frame (-1, -1, tmp_pixbuf); + g_object_unref (tmp_pixbuf); + } + + return scaled_pixbuf; +} + +static void +impress_document_thumbnails_get_dimensions (EvDocumentThumbnails *document, + EvRenderContext *rc, + gint *width, + gint *height) +{ + gdouble page_width, page_height; + + impress_document_get_page_size (EV_DOCUMENT (document), + rc->page, + &page_width, &page_height); + + if (rc->rotation == 90 || rc->rotation == 270) + { + *width = (gint) (page_height * rc->scale); + *height = (gint) (page_width * rc->scale); + } + else + { + *width = (gint) (page_width * rc->scale); + *height = (gint) (page_height * rc->scale); + } +} + +static void +impress_document_document_thumbnails_iface_init (EvDocumentThumbnailsInterface *iface) +{ + iface->get_thumbnail = impress_document_thumbnails_get_thumbnail; + iface->get_dimensions = impress_document_thumbnails_get_dimensions; +} + +static void +impress_document_init (ImpressDocument *impress_document) +{ + GdkWindow *window; + + impress_document->mutex = g_mutex_new (); + impress_document->ctx = imp_create_context(&imp_render_functions); + + window = gdk_screen_get_root_window (gdk_screen_get_default ()); + + impress_document->pixmap = gdk_pixmap_new (window, + PAGE_WIDTH, PAGE_HEIGHT, -1); + impress_document->gc = gdk_gc_new (impress_document->pixmap); + impress_document->pango_ctx = gdk_pango_context_get_for_screen (gdk_screen_get_default ()); +} + +/* + * vim: sw=2 ts=8 cindent noai bs=2 + */ diff --git a/backend/impress/impress-document.h b/backend/impress/impress-document.h new file mode 100644 index 00000000..17a3c19a --- /dev/null +++ b/backend/impress/impress-document.h @@ -0,0 +1,39 @@ + +/* pdfdocument.h: Implementation of EvDocument for impresss + * Copyright (C) 2005, Jonathan Blandford + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef __IMPRESS_DOCUMENT_H__ +#define __IMPRESS_DOCUMENT_H__ + +#include "ev-document.h" + +G_BEGIN_DECLS + +#define IMPRESS_TYPE_DOCUMENT (impress_document_get_type ()) +#define IMPRESS_DOCUMENT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), IMPRESS_TYPE_DOCUMENT, ImpressDocument)) +#define IMPRESS_IS_DOCUMENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), IMPRESS_TYPE_DOCUMENT)) + +typedef struct _ImpressDocument ImpressDocument; + +GType impress_document_get_type (void) G_GNUC_CONST; + +G_MODULE_EXPORT GType register_evince_backend (GTypeModule *module); + +G_END_DECLS + +#endif /* __IMPRESS_DOCUMENT_H__ */ diff --git a/backend/impress/impressdocument.evince-backend.in b/backend/impress/impressdocument.evince-backend.in new file mode 100644 index 00000000..61de77ab --- /dev/null +++ b/backend/impress/impressdocument.evince-backend.in @@ -0,0 +1,4 @@ +[Evince Backend] +Module=impressdocument +_TypeDescription=Impress Slides +MimeType=application/vnd.sun.xml.impress;application/vnd.oasis.opendocument.presentation; diff --git a/backend/impress/internal.h b/backend/impress/internal.h new file mode 100644 index 00000000..eb99c3ec --- /dev/null +++ b/backend/impress/internal.h @@ -0,0 +1,85 @@ +/* imposter (OO.org Impress viewer) +** Copyright (C) 2003-2005 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU General Public License. +*/ + +#include "zip.h" + +#ifndef INTERNAL_H +#define INTERNAL_H + +struct ImpDoc_struct { + ikstack *stack; + zip *zfile; + iks *content; + iks *styles; + iks *meta; + ImpPage *pages; + ImpPage *last_page; + int nr_pages; + void (*get_geometry)(ImpRenderCtx *ctx); + void (*render_page)(ImpRenderCtx *ctx, void *drw_data); +}; + +struct ImpPage_struct { + struct ImpPage_struct *next; + struct ImpPage_struct *prev; + ImpDoc *doc; + iks *page; + const char *name; + int nr; +}; + +struct ImpRenderCtx_struct { + const ImpDrawer *drw; + ImpPage *page; + iks *content; + iks *styles; + iks *last_element; + int step; + int pix_w, pix_h; + double cm_w, cm_h; + double fact_x, fact_y; +}; + +char *r_get_style (ImpRenderCtx *ctx, iks *node, char *attr); +int r_get_color(ImpRenderCtx *ctx, iks *node, char *name, ImpColor *ic); +void r_parse_color(const char *color, ImpColor *ic); +int r_get_x (ImpRenderCtx *ctx, iks *node, char *name); +int r_get_y (ImpRenderCtx *ctx, iks *node, char *name); +int r_get_angle (iks *node, char *name, int def); + +enum { + IMP_LE_NONE = 0, + IMP_LE_ARROW, + IMP_LE_SQUARE, + IMP_LE_DIMENSION, + IMP_LE_DOUBLE_ARROW, + IMP_LE_SMALL_ARROW, + IMP_LE_ROUND_ARROW, + IMP_LE_SYM_ARROW, + IMP_LE_LINE_ARROW, + IMP_LE_ROUND_LARGE_ARROW, + IMP_LE_CIRCLE, + IMP_LE_SQUARE_45, + IMP_LE_CONCAVE_ARROW +}; + +void _imp_draw_rect(ImpRenderCtx *ctx, void *drw_data, int fill, int x, int y, int w, int h, int round); +void _imp_draw_line_end(ImpRenderCtx *ctx, void *drw_data, int type, int size, int x, int y, int x2, int y2); +void _imp_draw_image(ImpRenderCtx *ctx, void *drw_data, const char *name, int x, int y, int w, int h); +void _imp_tile_image(ImpRenderCtx *ctx, void *drw_data, const char *name, int x, int y, int w, int h); + +int _imp_fill_back(ImpRenderCtx *ctx, void *drw_data, iks *node); +void r_text(ImpRenderCtx *ctx, void *drw_data, iks *node); +void r_polygon(ImpRenderCtx *ctx, void *drw_data, iks *node); +void r_circle(ImpRenderCtx *ctx, void *drw_data, iks *node); +void r_polyline(ImpRenderCtx *ctx, void *drw_data, iks *node); +void r_draw_gradient (ImpRenderCtx *ctx, void *drw_data, iks *node); + +int _imp_oo13_load(ImpDoc *doc); +int _imp_oasis_load(ImpDoc *doc); + + +#endif /* INTERNAL_H */ diff --git a/backend/impress/r_back.c b/backend/impress/r_back.c new file mode 100644 index 00000000..3f050d9e --- /dev/null +++ b/backend/impress/r_back.c @@ -0,0 +1,46 @@ +/* imposter (OO.org Impress viewer) +** Copyright (C) 2003-2005 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU General Public License. +*/ + +#include +#include "common.h" +#include "internal.h" + +int +_imp_fill_back(ImpRenderCtx *ctx, void *drw_data, iks *node) +{ + ImpColor col; + char *type; + char *stil, *gfx; + iks *x; + + type = r_get_style(ctx, node, "draw:fill"); + if (type == 0) return 0; + + if (strcmp(type, "solid") == 0) { + if (r_get_color(ctx, node, "draw:fill-color", &col)) { + ctx->drw->set_fg_color(drw_data, &col); + } + ctx->drw->draw_rect(drw_data, 1, 0, 0, ctx->pix_w, ctx->pix_h); + } else if (strcmp (type, "bitmap") == 0) { + stil = r_get_style(ctx, node, "draw:fill-image-name"); + x = iks_find_with_attrib(iks_find(ctx->styles, "office:styles"), + "draw:fill-image", "draw:name", stil + ); + gfx = iks_find_attrib(x, "xlink:href"); + if (gfx) { + if (iks_strcmp(r_get_style(ctx, node, "style:repeat"), "stretch") == 0) { + _imp_draw_image(ctx, drw_data, gfx, 0, 0, ctx->pix_w, ctx->pix_h); + } else { + _imp_tile_image(ctx, drw_data, gfx, 0, 0, ctx->pix_w, ctx->pix_h); + } + } + } else if (strcmp(type, "gradient") == 0) { + r_draw_gradient(ctx, drw_data, node); + } else { + return 0; + } + return 1; +} diff --git a/backend/impress/r_draw.c b/backend/impress/r_draw.c new file mode 100644 index 00000000..aad1655e --- /dev/null +++ b/backend/impress/r_draw.c @@ -0,0 +1,120 @@ +/* imposter (OO.org Impress viewer) +** Copyright (C) 2003-2005 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU General Public License. +*/ + +#include +#include "common.h" +#include "internal.h" +#include + +void +_imp_draw_rect(ImpRenderCtx *ctx, void *drw_data, int fill, int x, int y, int w, int h, int round) +{ + int a; + + if (0 == round) { + ctx->drw->draw_rect(drw_data, fill, x, y, w, h); + return; + } + + ctx->drw->draw_arc(drw_data, fill, + x, y, round, round, 90, 90); + ctx->drw->draw_arc(drw_data, fill, + x + w - round, y, round, round, 0, 90); + ctx->drw->draw_arc(drw_data, fill, + x + w - round, y + h - round, round, round, 270, 90); + ctx->drw->draw_arc(drw_data, fill, + x, y + h - round, round, round, 180, 90); + + a = round / 2; + if (fill) { + ctx->drw->draw_rect(drw_data, 1, x + a, y, w - a - a, h); + ctx->drw->draw_rect(drw_data, 1, x, y + a, w, h - a - a); + return; + } + ctx->drw->draw_line(drw_data, x + a, y, x + w - a, y); + ctx->drw->draw_line(drw_data, x + a, y + h, x + w - a, y + h); + ctx->drw->draw_line(drw_data, x, y + a, x, y + h - a); + ctx->drw->draw_line(drw_data, x + w, y + a, x + w, y + h - a); +} + +void +_imp_draw_line_end(ImpRenderCtx *ctx, void *drw_data, int type, int size, int x, int y, int x2, int y2) +{ + ImpPoint pts[4]; + double ia, a; + + // FIXME: different types and sizes + + pts[0].x = x2; + pts[0].y = y2; + + ia = 20 * 3.14 * 2 / 360; + + if (x2-x == 0) { + if (y < y2) a = 3.14 + (3.14 / 2); else a = (3.14 / 2); + } else if (y2-y == 0) { + if (x < x2) a = 3.14; else a = 0; + } else + a = atan ((y2-y) / (x2-x)) - 3.14; + + pts[1].x = x2 + 0.3 * ctx->fact_x * cos (a - ia); + pts[1].y = y2 + 0.3 * ctx->fact_y * sin (a - ia); + + pts[2].x = x2 + 0.3 * ctx->fact_x * cos (a + ia); + pts[2].y = y2 + 0.3 * ctx->fact_y * sin (a + ia); + + ctx->drw->draw_polygon(drw_data, 1, pts, 3); +} + +void +_imp_draw_image(ImpRenderCtx *ctx, void *drw_data, const char *name, int x, int y, int w, int h) +{ + void *img1, *img2; + char *pix; + size_t len; + + len = zip_get_size(ctx->page->doc->zfile, name); + pix = malloc(len); + if (!pix) return; + zip_load(ctx->page->doc->zfile, name, pix); + + img1 = ctx->drw->open_image(drw_data, pix, len); + free(pix); + if (!img1) return; + img2 = ctx->drw->scale_image(drw_data, img1, w, h); + if (img2) { + ctx->drw->draw_image(drw_data, img2, x, y, w, h); + ctx->drw->close_image(drw_data, img2); + } + ctx->drw->close_image(drw_data, img1); +} + +void +_imp_tile_image(ImpRenderCtx *ctx, void *drw_data, const char *name, int x, int y, int w, int h) +{ + void *img1; + char *pix; + size_t len; + int gx, gy, gw, gh; + + len = zip_get_size(ctx->page->doc->zfile, name); + pix = malloc(len); + if (!pix) return; + zip_load(ctx->page->doc->zfile, name, pix); + + img1 = ctx->drw->open_image(drw_data, pix, len); + free(pix); + if (!img1) return; + + ctx->drw->get_image_size(drw_data, img1, &gw, &gh); + for (gx = x; gx < w; gx += gw) { + for (gy = y; gy < h; gy += gh) { + ctx->drw->draw_image(drw_data, img1, gx, gy, gw, gh); + } + } + + ctx->drw->close_image(drw_data, img1); +} diff --git a/backend/impress/r_geometry.c b/backend/impress/r_geometry.c new file mode 100644 index 00000000..4819821a --- /dev/null +++ b/backend/impress/r_geometry.c @@ -0,0 +1,208 @@ +/* imposter (OO.org Impress viewer) +** Copyright (C) 2003-2005 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU General Public License. +*/ + +#include +#include "common.h" +#include "internal.h" +#include + +void +r_parse_color(const char *color, ImpColor *ic) +{ + unsigned int cval; + + if (1 != sscanf(color, "#%X", &cval)) return; + + ic->red = (cval & 0xFF0000) >> 8; + ic->green = cval & 0x00FF00; + ic->blue = (cval & 0xFF) << 8; +} + +int +r_get_color(ImpRenderCtx *ctx, iks *node, char *name, ImpColor *ic) +{ + char *color; + + color = r_get_style(ctx, node, name); + if (!color) return 0; + r_parse_color(color, ic); + + return 1; +} + +static void +fg_color(ImpRenderCtx *ctx, void *drw_data, iks *node, char *name) +{ + ImpColor ic; + + if (r_get_color(ctx, node, name, &ic)) { + ctx->drw->set_fg_color(drw_data, &ic); + } +} + +int +r_get_x (ImpRenderCtx *ctx, iks *node, char *name) +{ + char *val; + + val = iks_find_attrib (node, name); + if (!val) return 0; + return atof (val) * ctx->fact_x; +} + +int +r_get_y (ImpRenderCtx *ctx, iks *node, char *name) +{ + char *val; + + val = iks_find_attrib (node, name); + if (!val) return 0; + return atof (val) * ctx->fact_y; +} + +int +r_get_angle (iks *node, char *name, int def) +{ + char *tmp; + + tmp = iks_find_attrib (node, name); + if (!tmp) return def; + return atof (tmp); +} + +static int x, y, w, h; +static int px, py, pw, ph; + +static void +r_get_viewbox (iks *node) +{ + char *tmp; + + tmp = iks_find_attrib (node, "svg:viewBox"); + if (!tmp) return; + sscanf (tmp, "%d %d %d %d", &px, &py, &pw, &ph); +} + +void +r_polygon(ImpRenderCtx *ctx, void *drw_data, iks *node) +{ + char *data; + ImpPoint *points; + int i, cnt, j; + int num; + int fill = 1; + + data = r_get_style (ctx, node, "draw:fill"); + if (!data || strcmp (data, "solid") != 0) fill = 0; + + x = r_get_x (ctx, node, "svg:x"); + y = r_get_y (ctx, node, "svg:y"); + w = r_get_x (ctx, node, "svg:width"); + h = r_get_y (ctx, node, "svg:height"); + r_get_viewbox (node); + + data = iks_find_attrib (node, "draw:points"); + points = malloc (sizeof (ImpPoint) * strlen (data) / 4); + + cnt = 0; + j = 0; + num = -1; + for (i = 0; data[i]; i++) { + if (data[i] >= '0' && data[i] <= '9') { + if (num == -1) num = i; + } else { + if (num != -1) { + if (j == 0) { + points[cnt].x = atoi (data + num); + j = 1; + } else { + points[cnt++].y = atoi (data + num); + j = 0; + } + num = -1; + } + } + } + if (num != -1) { + if (j == 0) { + points[cnt].x = atoi (data + num); + } else { + points[cnt++].y = atoi (data + num); + } + } + for (i = 0; i < cnt; i++) { + points[i].x = x + points[i].x * w / pw; + points[i].y = y + points[i].y * h / ph; + } + + if (fill) { + fg_color(ctx, drw_data, node, "draw:fill-color"); + ctx->drw->draw_polygon(drw_data, 1, points, cnt); + } + fg_color(ctx, drw_data, node, "svg:stroke-color"); + ctx->drw->draw_polygon(drw_data, 0, points, cnt); + + free (points); +} + +void +r_polyline(ImpRenderCtx *ctx, void *drw_data, iks *node) +{ + char *data; + ImpPoint *points; + int i, cnt, j; + int num; + int pen_x, pen_y; + + x = r_get_x (ctx, node, "svg:x"); + y = r_get_y (ctx, node, "svg:y"); + w = r_get_x (ctx, node, "svg:width"); + h = r_get_y (ctx, node, "svg:height"); + r_get_viewbox (node); + + data = iks_find_attrib (node, "draw:points"); + points = malloc (sizeof (ImpPoint) * strlen (data) / 4); + + cnt = 0; + j = 0; + num = -1; + for (i = 0; data[i]; i++) { + if (data[i] >= '0' && data[i] <= '9') { + if (num == -1) num = i; + } else { + if (num != -1) { + if (j == 0) { + points[cnt].x = atoi (data + num); + j = 1; + } else { + points[cnt++].y = atoi (data + num); + j = 0; + } + num = -1; + } + } + } + if (num != -1) { + if (j == 0) { + points[cnt].x = atoi (data + num); + } else { + points[cnt++].y = atoi (data + num); + } + } + + pen_x = x + points[0].x * w /pw; + pen_y = y + points[0].y * h / ph; + fg_color(ctx, drw_data, node, "svg:stroke-color"); + for (i = 1; i < cnt; i++) { + int tx, ty; + tx = x + points[i].x * w / pw; + ty = y + points[i].y * h / ph; + ctx->drw->draw_line(drw_data, pen_x, pen_y, tx, ty); + pen_x = tx; + pen_y = ty; + } + free (points); +} diff --git a/backend/impress/r_gradient.c b/backend/impress/r_gradient.c new file mode 100644 index 00000000..79636fe2 --- /dev/null +++ b/backend/impress/r_gradient.c @@ -0,0 +1,387 @@ +/* imposter (OO.org Impress viewer) +** Copyright (C) 2003-2005 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU General Public License. +*/ + +#include +#include "common.h" +#include "internal.h" +#include + +#define GRAD_LINEAR 0 +#define GRAD_AXIAL 1 +#define GRAD_SQUARE 2 +#define GRAD_RECTANGULAR 3 +#define GRAD_RADIAL 4 +#define GRAD_ELLIPTICAL 5 + +typedef struct Gradient_s { + int type; + ImpColor start; + int start_intensity; + ImpColor end; + int end_intensity; + int angle; + int border; + int steps; + int offset_x; + int offset_y; +} Gradient; + +typedef struct Rectangle_s { + int Left; + int Top; + int Right; + int Bottom; +} Rectangle; + +static void +poly_rotate (ImpPoint *poly, int n, int cx, int cy, double fAngle) +{ + int i; + long nX, nY; + + for (i = 0; i < n; i++) { + nX = poly->x - cx; + nY = poly->y - cy; + poly->x = (cos(fAngle) * nX + sin(fAngle) * nY) + cx; + poly->y = - (sin(fAngle)* nX - cos(fAngle) * nY) + cy; + poly++; + } +} + +static void +r_draw_gradient_simple (ImpRenderCtx *ctx, void *drw_data, Gradient *grad) +{ + Rectangle rRect = { 0, 0, ctx->pix_w - 1, ctx->pix_h - 1 }; + Rectangle aRect, aFullRect; + ImpPoint poly[4], tempoly[2]; + ImpColor gcol; + double fW, fH, fDX, fDY, fAngle; + double fScanLine, fScanInc; + long redSteps, greenSteps, blueSteps; + long nBorder; + int i, nSteps, nSteps2; + int cx, cy; + + cx = rRect.Left + (rRect.Right - rRect.Left) / 2; + cy = rRect.Top + (rRect.Bottom - rRect.Top) / 2; + + aRect = rRect; + aRect.Top--; aRect.Left--; aRect.Bottom++; aRect.Right++; + fW = rRect.Right - rRect.Left; + fH = rRect.Bottom - rRect.Top; + fAngle = (((double) grad->angle) * 3.14 / 1800.0); + fDX = fW * fabs (cos (fAngle)) + fH * fabs (sin (fAngle)); + fDY = fH * fabs (cos (fAngle)) + fW * fabs (sin (fAngle)); + fDX = (fDX - fW) * 0.5 - 0.5; + fDY = (fDY - fH) * 0.5 - 0.5; + aRect.Left -= fDX; + aRect.Right += fDX; + aRect.Top -= fDY; + aRect.Bottom += fDY; + aFullRect = aRect; + + nBorder = grad->border * (aRect.Bottom - aRect.Top) / 100; + if (grad->type == GRAD_LINEAR) { + aRect.Top += nBorder; + } else { + nBorder >>= 1; + aRect.Top += nBorder; + aRect.Bottom -= nBorder; + } + + if (aRect.Top > (aRect.Bottom - 1)) + aRect.Top = aRect.Bottom - 1; + + poly[0].x = aFullRect.Left; + poly[0].y = aFullRect.Top; + poly[1].x = aFullRect.Right; + poly[1].y = aFullRect.Top; + poly[2].x = aRect.Right; + poly[2].y = aRect.Top; + poly[3].x = aRect.Left; + poly[3].y = aRect.Top; + poly_rotate (&poly[0], 4, cx, cy, fAngle); + + redSteps = grad->end.red - grad->start.red; + greenSteps = grad->end.green - grad->start.green; + blueSteps = grad->end.blue - grad->start.blue; + nSteps = grad->steps; + if (nSteps == 0) { + long mr; + mr = aRect.Bottom - aRect.Top; + if (mr < 50) + nSteps = mr / 2; + else + nSteps = mr / 4; + mr = abs(redSteps); + if (abs(greenSteps) > mr) mr = abs(greenSteps); + if (abs(blueSteps) > mr) mr = abs(blueSteps); + if (mr < nSteps) nSteps = mr; + } + + if (grad->type == GRAD_AXIAL) { + if (nSteps & 1) nSteps++; + nSteps2 = nSteps + 2; + gcol = grad->end; + redSteps <<= 1; + greenSteps <<= 1; + blueSteps <<= 1; + } else { + nSteps2 = nSteps + 1; + gcol = grad->start; + } + + fScanLine = aRect.Top; + fScanInc = (double)(aRect.Bottom - aRect.Top) / (double)nSteps; + + for (i = 0; i < nSteps2; i++) { + // draw polygon + ctx->drw->set_fg_color(drw_data, &gcol); + ctx->drw->draw_polygon(drw_data, 1, &poly[0], 4); + // calc next polygon + aRect.Top = (long)(fScanLine += fScanInc); + if (i == nSteps) { + tempoly[0].x = aFullRect.Left; + tempoly[0].y = aFullRect.Bottom; + tempoly[1].x = aFullRect.Right; + tempoly[1].y = aFullRect.Bottom; + } else { + tempoly[0].x = aRect.Left; + tempoly[0].y = aRect.Top; + tempoly[1].x = aRect.Right; + tempoly[1].y = aRect.Top; + } + poly_rotate (&tempoly[0], 2, cx, cy, fAngle); + poly[0] = poly[3]; + poly[1] = poly[2]; + poly[2] = tempoly[1]; + poly[3] = tempoly[0]; + // calc next color + if (grad->type == GRAD_LINEAR) { + gcol.red = grad->start.red + ((redSteps * i) / nSteps2); + gcol.green = grad->start.green + ((greenSteps * i) / nSteps2); + gcol.blue = grad->start.blue + ((blueSteps * i) / nSteps2); + } else { + if (i >= nSteps) { + gcol.red = grad->end.red; + gcol.green = grad->end.green; + gcol.blue = grad->end.blue; + } else { + if (i <= (nSteps / 2)) { + gcol.red = grad->end.red - ((redSteps * i) / nSteps2); + gcol.green = grad->end.green - ((greenSteps * i) / nSteps2); + gcol.blue = grad->end.blue - ((blueSteps * i) / nSteps2); + } else { + int i2 = i - nSteps / 2; + gcol.red = grad->start.red + ((redSteps * i2) / nSteps2); + gcol.green = grad->start.green + ((greenSteps * i2) / nSteps2); + gcol.blue = grad->start.blue + ((blueSteps * i2) / nSteps2); + } + } + } + } +} + +static void +r_draw_gradient_complex (ImpRenderCtx *ctx, void *drw_data, Gradient *grad) +{ + Rectangle rRect = { 0, 0, ctx->pix_w - 1, ctx->pix_h - 1 }; + Rectangle aRect = rRect; + ImpColor gcol; + ImpPoint poly[4]; + double fAngle = (((double) grad->angle) * 3.14 / 1800.0); + long redSteps, greenSteps, blueSteps; + long nZW, nZH; + long bX, bY; + long sW, sH; + long cx, cy; + int i; + long nSteps; + double sTop, sLeft, sRight, sBottom, sInc; + int minRect; + + redSteps = grad->end.red - grad->start.red; + greenSteps = grad->end.green - grad->start.green; + blueSteps = grad->end.blue - grad->start.blue; + + if (grad->type == GRAD_SQUARE || grad->type == GRAD_RECTANGULAR) { + double fW = aRect.Right - aRect.Left; + double fH = aRect.Bottom - aRect.Top; + double fDX = fW * fabs (cos (fAngle)) + fH * fabs (sin (fAngle)); + double fDY = fH * fabs (cos (fAngle)) + fW * fabs (sin (fAngle)); + fDX = (fDX - fW) * 0.5 - 0.5; + fDY = (fDY - fH) * 0.5 - 0.5; + aRect.Left -= fDX; + aRect.Right += fDX; + aRect.Top -= fDY; + aRect.Bottom += fDY; + } + + sW = aRect.Right - aRect.Left; + sH = aRect.Bottom - aRect.Top; + + if (grad->type == GRAD_SQUARE) { + if (sW > sH) sH = sW; else sW = sH; + } else if (grad->type == GRAD_RADIAL) { + sW = 0.5 + sqrt ((double)sW*(double)sW + (double)sH*(double)sH); + sH = sW; + } else if (grad->type == GRAD_ELLIPTICAL) { + sW = 0.5 + (double)sW * 1.4142; + sH = 0.5 + (double)sH * 1.4142; + } + + nZW = (aRect.Right - aRect.Left) * grad->offset_x / 100; + nZH = (aRect.Bottom - aRect.Top) * grad->offset_y / 100; + bX = grad->border * sW / 100; + bY = grad->border * sH / 100; + cx = aRect.Left + nZW; + cy = aRect.Top + nZH; + + sW -= bX; + sH -= bY; + + aRect.Left = cx - ((aRect.Right - aRect.Left) >> 1); + aRect.Top = cy - ((aRect.Bottom - aRect.Top) >> 1); + + nSteps = grad->steps; + minRect = aRect.Right - aRect.Left; + if (aRect.Bottom - aRect.Top < minRect) minRect = aRect.Bottom - aRect.Top; + if (nSteps == 0) { + long mr; + if (minRect < 50) + nSteps = minRect / 2; + else + nSteps = minRect / 4; + mr = abs(redSteps); + if (abs(greenSteps) > mr) mr = abs(greenSteps); + if (abs(blueSteps) > mr) mr = abs(blueSteps); + if (mr < nSteps) nSteps = mr; + } + + sLeft = aRect.Left; + sTop = aRect.Top; + sRight = aRect.Right; + sBottom = aRect.Bottom; + sInc = (double) minRect / (double) nSteps * 0.5; + + gcol = grad->start; + poly[0].x = rRect.Left; + poly[0].y = rRect.Top; + poly[1].x = rRect.Right; + poly[1].y = rRect.Top; + poly[2].x = rRect.Right; + poly[2].y = rRect.Bottom; + poly[3].x = rRect.Left; + poly[3].y = rRect.Bottom; + ctx->drw->set_fg_color(drw_data, &gcol); + ctx->drw->draw_polygon(drw_data, 1, &poly[0], 4); + + for (i = 0; i < nSteps; i++) { + aRect.Left = (long) (sLeft += sInc); + aRect.Top = (long) (sTop += sInc); + aRect.Right = (long) (sRight -= sInc); + aRect.Bottom = (long) (sBottom -= sInc); + if (aRect.Bottom - aRect.Top < 2 || aRect.Right - aRect.Left < 2) + break; + + gcol.red = grad->start.red + (redSteps * (i+1) / nSteps); + gcol.green = grad->start.green + (greenSteps * (i+1) / nSteps); + gcol.blue = grad->start.blue + (blueSteps * (i+1) / nSteps); + ctx->drw->set_fg_color(drw_data, &gcol); + + if (grad->type == GRAD_RADIAL || grad->type == GRAD_ELLIPTICAL) { + ctx->drw->draw_arc(drw_data, 1, aRect.Left, aRect.Top, + aRect.Right - aRect.Left, aRect.Bottom - aRect.Top, + 0, 360); + } else { + poly[0].x = aRect.Left; + poly[0].y = aRect.Top; + poly[1].x = aRect.Right; + poly[1].y = aRect.Top; + poly[2].x = aRect.Right; + poly[2].y = aRect.Bottom; + poly[3].x = aRect.Left; + poly[3].y = aRect.Bottom; + poly_rotate (&poly[0], 4, cx, cy, fAngle); + ctx->drw->draw_polygon(drw_data, 1, &poly[0], 4); + } + } +} + +void +r_draw_gradient (ImpRenderCtx *ctx, void *drw_data, iks *node) +{ +// GdkGC *gc; + Gradient grad; + char *stil, *tmp; + iks *x; + + stil = r_get_style (ctx, node, "draw:fill-gradient-name"); + x = iks_find_with_attrib (iks_find (ctx->styles, "office:styles"), + "draw:gradient", "draw:name", stil); + if (x) { + memset (&grad, 0, sizeof (Gradient)); + grad.type = -1; + grad.offset_x = 50; + grad.offset_y = 50; + + tmp = iks_find_attrib (x, "draw:start-color"); + if (tmp) r_parse_color (tmp, &grad.start); + tmp = iks_find_attrib (x, "draw:start-intensity"); + if (tmp) { + int val = atoi (tmp); + grad.start.red = grad.start.red * val / 100; + grad.start.green = grad.start.green * val / 100; + grad.start.blue = grad.start.blue * val / 100; + } + tmp = iks_find_attrib (x, "draw:end-color"); + if (tmp) r_parse_color (tmp, &grad.end); + tmp = iks_find_attrib (x, "draw:end-intensity"); + if (tmp) { + int val = atoi (tmp); + grad.end.red = grad.end.red * val / 100; + grad.end.green = grad.end.green * val / 100; + grad.end.blue = grad.end.blue * val / 100; + } + tmp = iks_find_attrib (x, "draw:angle"); + if (tmp) grad.angle = atoi(tmp) % 3600; + tmp = iks_find_attrib (x, "draw:border"); + if (tmp) grad.border = atoi(tmp); + tmp = r_get_style (ctx, node, "draw:gradient-step-count"); + if (tmp) grad.steps = atoi (tmp); + tmp = iks_find_attrib (x, "draw:cx"); + if (tmp) grad.offset_x = atoi (tmp); + tmp = iks_find_attrib (x, "draw:cy"); + if (tmp) grad.offset_y = atoi (tmp); + tmp = iks_find_attrib (x, "draw:style"); + if (iks_strcmp (tmp, "linear") == 0) + grad.type = GRAD_LINEAR; + else if (iks_strcmp (tmp, "axial") == 0) + grad.type = GRAD_AXIAL; + else if (iks_strcmp (tmp, "radial") == 0) + grad.type = GRAD_RADIAL; + else if (iks_strcmp (tmp, "rectangular") == 0) + grad.type = GRAD_RECTANGULAR; + else if (iks_strcmp (tmp, "ellipsoid") == 0) + grad.type = GRAD_ELLIPTICAL; + else if (iks_strcmp (tmp, "square") == 0) + grad.type = GRAD_SQUARE; + + if (grad.type == -1) return; + +// gc = ctx->gc; +// ctx->gc = gdk_gc_new (ctx->d); +// gdk_gc_copy (ctx->gc, gc); + + if (grad.type == GRAD_LINEAR || grad.type == GRAD_AXIAL) + r_draw_gradient_simple (ctx, drw_data, &grad); + else + r_draw_gradient_complex (ctx, drw_data, &grad); + +// g_object_unref (ctx->gc); +// ctx->gc = gc; + } +} diff --git a/backend/impress/r_style.c b/backend/impress/r_style.c new file mode 100644 index 00000000..39ee9c62 --- /dev/null +++ b/backend/impress/r_style.c @@ -0,0 +1,111 @@ +/* imposter (OO.org Impress viewer) +** Copyright (C) 2003-2005 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU General Public License. +*/ + +#include +#include "common.h" +#include "internal.h" + +static char * +get_style(ImpRenderCtx *ctx, iks *node, char *style, char *attr) +{ + char *ret; + iks *x; + + if (!style) return NULL; + + if (iks_root (node) == ctx->content) { + x = iks_find_with_attrib (iks_find (ctx->content, "office:automatic-styles"), + "style:style", "style:name", style); + } else { + x = iks_find_with_attrib (iks_find (ctx->styles, "office:automatic-styles"), + "style:style", "style:name", style); + } + if (!x) return NULL; + + while (x) { + ret = iks_find_attrib (iks_find (x, "style:properties"), attr); + if (ret) return ret; + ret = iks_find_attrib (iks_find (x, "style:text-properties"), attr); + if (ret) return ret; + ret = iks_find_attrib (iks_find (x, "style:paragraph-properties"), attr); + if (ret) return ret; + ret = iks_find_attrib (iks_find (x, "style:graphic-properties"), attr); + if (ret) return ret; + ret = iks_find_attrib (iks_find (x, "style:drawing-page-properties"), attr); + if (ret) return ret; + + style = iks_find_attrib (x, "style:parent-style-name"); + if (!style) return NULL; + + x = iks_find_with_attrib (iks_find (ctx->styles, "office:styles"), + "style:style", "style:name", style); + + } + return NULL; +} + +char * +r_get_style (ImpRenderCtx *ctx, iks *node, char *attr) +{ + char *ret, *s; + iks *x; + + ret = iks_find_attrib (node, attr); + if (ret) return ret; + + for (x = node; x; x = iks_parent (x)) { + s = iks_find_attrib (x, "text:style-name"); + ret = get_style (ctx, node, s, attr); + if (ret) return ret; + s = iks_find_attrib (x, "presentation:style-name"); + ret = get_style (ctx, node, s, attr); + if (ret) return ret; + s = iks_find_attrib (x, "draw:style-name"); + ret = get_style (ctx, node, s, attr); + if (ret) return ret; + } + return NULL; +} + +#if 0 +static iks * +get_style_x (ImpRenderCtx *ctx, iks *node, char *style, char *attr) +{ + iks *x; + + if (!style) return NULL; + + if (iks_root (node) == ctx->content) { + x = iks_find_with_attrib (iks_find (ctx->content, "office:automatic-styles"), + "text:list-style", "style:name", style); + } else { + x = iks_find_with_attrib (iks_find (ctx->styles, "office:automatic-styles"), + "text:list-style", "style:name", style); + } + return x; +} + +static iks * +r_get_bullet (ImpRenderCtx *ctx, iks *node, char *attr) +{ + iks *ret; + char *s; + iks *x; + + for (x = node; x; x = iks_parent (x)) { + s = iks_find_attrib (x, "text:style-name"); + ret = get_style_x (ctx, node, s, attr); + if (ret) return ret; + s = iks_find_attrib (x, "presentation:style-name"); + ret = get_style_x (ctx, node, s, attr); + if (ret) return ret; + s = iks_find_attrib (x, "draw:style-name"); + ret = get_style_x (ctx, node, s, attr); + if (ret) return ret; + } + return NULL; +} +#endif diff --git a/backend/impress/r_text.c b/backend/impress/r_text.c new file mode 100644 index 00000000..4b89bcad --- /dev/null +++ b/backend/impress/r_text.c @@ -0,0 +1,386 @@ +/* imposter (OO.org Impress viewer) +** Copyright (C) 2003-2005 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU General Public License. +*/ + +#include +#include "common.h" +#include "internal.h" + +struct Span { + struct Span *next; + int x, y; + int w, h; + char *text; + int len; + int size; + int styles; + ImpColor fg; +}; + +struct Line { + struct Line *next; + struct Span *spans; + struct Span *last_span; + int x, y; + int w, h; +}; + +struct Layout { + ikstack *s; + int x, y, w, h; + int tw, th; + struct Line *lines; + struct Line *last_line; + char spaces[128]; +}; + +static struct Line * +add_line(struct Layout *lay) +{ + struct Line *line; + + line = iks_stack_alloc(lay->s, sizeof(struct Line)); + memset(line, 0, sizeof(struct Line)); + + if (!lay->lines) lay->lines = line; + if (lay->last_line) lay->last_line->next = line; + lay->last_line = line; + + return line; +} + +static struct Span * +add_span(struct Layout *lay, char *text, int len, int size, int styles) +{ + struct Line *line; + struct Span *span; + + span = iks_stack_alloc(lay->s, sizeof(struct Span)); + memset(span, 0, sizeof(struct Span)); + span->text = text; + span->len = len; + span->size = size; + span->styles = styles; + + line = lay->last_line; + if (!line) line = add_line(lay); + if (line->spans) { + span->x = line->last_span->x + line->last_span->w; + span->y = line->last_span->y; + } else { + span->x = line->x; + span->y = line->y; + } + + if (!line->spans) line->spans = span; + if (line->last_span) line->last_span->next = span; + line->last_span = span; + + return span; +} + +static void +calc_sizes(ImpRenderCtx *ctx, void *drw_data, struct Layout *lay) +{ + struct Line *line; + struct Span *span; + + for (line = lay->lines; line; line = line->next) { + for (span = line->spans; span; span = span->next) { + ctx->drw->get_text_size(drw_data, + span->text, span->len, + span->size, span->styles, + &span->w, &span->h + ); + line->w += span->w; + if (span->h > line->h) line->h = span->h; + } + if (line->w > lay->tw) lay->tw = line->w; + lay->th += line->h; + } +} + +static void +calc_pos(ImpRenderCtx *ctx, struct Layout *lay) +{ + struct Line *line; + struct Span *span; + int x, y, x2; + + x = lay->x; + y = lay->y; + for (line = lay->lines; line; line = line->next) { + line->x = x; + line->y = y; + y += line->h; + x2 = x; + for (span = line->spans; span; span = span->next) { + span->x = x2; + span->y = y; + x2 += span->w; + } + } +} + +static void +_imp_draw_layout(ImpRenderCtx *ctx, void *drw_data, struct Layout *lay) +{ + struct Line *line; + struct Span *span; + + for (line = lay->lines; line; line = line->next) { + for (span = line->spans; span; span = span->next) { + ctx->drw->set_fg_color(drw_data, &span->fg); + ctx->drw->draw_text(drw_data, + span->x, span->y, + span->text, span->len, + span->size, + span->styles + ); + } + } +} + +static void +text_span(ImpRenderCtx *ctx, struct Layout *lay, iks *node, char *text, size_t len) +{ + struct Span *span; + double cm; + char *attr, *t, *s; + int px = 0, cont = 1; + int styles = IMP_NORMAL; + + attr = r_get_style(ctx, node, "fo:font-size"); + if (attr) { + cm = atof(attr); + if (strstr(attr, "pt")) cm = cm * 2.54 / 102; + px = cm * ctx->fact_y; + } + attr = r_get_style(ctx, node, "fo:font-weight"); + if (attr && strcmp(attr, "bold") == 0) styles |= IMP_BOLD; + attr = r_get_style(ctx, node, "style:text-underline"); + if (attr && strcmp(attr, "single") == 0) styles |= IMP_UNDERLINE; + attr = r_get_style(ctx, node, "fo:font-style"); + if (attr && strcmp(attr, "italic") == 0) styles |= IMP_ITALIC; + + t = text; + while (cont) { + s = strchr(t, '\n'); + if (s) { + int len2 = s - t; + span = add_span(lay, t, len2, px, styles); + t = s + 1; + len -= len2; + add_line(lay); + } else { + span = add_span(lay, text, len, px, styles); + cont = 0; + } + r_get_color(ctx, node, "fo:color", &span->fg); + } +} + +static void +text_p(ImpRenderCtx *ctx, struct Layout *lay, iks *node) +{ + iks *n, *n2; + + add_line(lay); + for (n = iks_child(node); n; n = iks_next(n)) { + if (iks_type(n) == IKS_CDATA) { + text_span(ctx, lay, node, iks_cdata(n), iks_cdata_size(n)); + } else if (iks_strcmp(iks_name(n), "text:span") == 0) { + for (n2 = iks_child(n); n2; n2 = iks_next(n2)) { + if (iks_type(n2) == IKS_CDATA) { + text_span(ctx, lay, n2, iks_cdata(n2), iks_cdata_size(n2)); + } else if (iks_strcmp(iks_name(n2), "text:s") == 0) { + char *attr; + int c = 1; + attr = iks_find_attrib(n2, "text:c"); + if (attr) c = atoi(attr); + if (c > 127) { + c = 127; + puts("bork bork"); + } + text_span(ctx, lay, n, lay->spaces, c); + } else if (iks_strcmp(iks_name(n2), "text:a") == 0) { + text_span(ctx, lay, n, iks_cdata(iks_child(n2)), iks_cdata_size(iks_child(n2))); + } else if (iks_strcmp(iks_name(n2), "text:tab-stop") == 0) { + text_span(ctx, lay, n, "\t", 1); + } else if (iks_strcmp(iks_name(n2), "text:page-number") == 0) { + char buf[8]; + sprintf(buf, "%d", ctx->page->nr); + text_span(ctx, lay, n, iks_stack_strdup(lay->s, buf, 0), strlen(buf)); + } + } + } else if (iks_strcmp(iks_name(n), "text:line-break") == 0) { + add_line(lay); + } else if (iks_strcmp(iks_name(n), "text:a") == 0) { + text_span(ctx, lay, n, iks_cdata(iks_child(n)), iks_cdata_size(iks_child(n))); + } else if (iks_strcmp(iks_name(n), "text:page-number") == 0) { + char buf[8]; + sprintf(buf, "%d", ctx->page->nr); + text_span(ctx, lay, n, iks_stack_strdup(lay->s, buf, 0), strlen(buf)); + } + } +} + +static void +text_list(ImpRenderCtx *ctx, struct Layout *lay, iks *node) +{ + iks *n, *n2; + + for (n = iks_first_tag(node); n; n = iks_next_tag(n)) { + for (n2 = iks_first_tag(n); n2; n2 = iks_next_tag(n2)) { + if (strcmp(iks_name(n2), "text:p") == 0) { + text_p(ctx, lay, n2); + } else if (strcmp(iks_name(n2), "text:ordered-list") == 0) { + text_list(ctx, lay, n2); + } else if (strcmp(iks_name(n2), "text:unordered-list") == 0) { + text_list(ctx, lay, n2); + } else if (strcmp(iks_name(n2), "text:list") == 0) { + text_list(ctx, lay, n2); + } + } + } +} + +void +r_text(ImpRenderCtx *ctx, void *drw_data, iks *node) +{ + struct Layout lay; + iks *n; + + memset(&lay, 0, sizeof(struct Layout)); + memset(&lay.spaces, ' ', 128); + lay.s = iks_stack_new(sizeof(struct Span) * 16, 0); + lay.x = r_get_x(ctx, node, "svg:x"); + lay.y = r_get_y(ctx, node, "svg:y"); + lay.w = r_get_y(ctx, node, "svg:width"); + lay.h = r_get_y(ctx, node, "svg:height"); + + for (n = iks_first_tag(node); n; n = iks_next_tag(n)) { + if (strcmp(iks_name(n), "text:p") == 0) { + text_p(ctx, &lay, n); + } else if (strcmp(iks_name(n), "text:ordered-list") == 0) { + text_list(ctx, &lay, n); + } else if (strcmp(iks_name(n), "text:unordered-list") == 0) { + text_list(ctx, &lay, n); + } else if (strcmp(iks_name(n), "text:list") == 0) { + text_list(ctx, &lay, n); + } + } + + calc_sizes(ctx, drw_data, &lay); + calc_pos(ctx, &lay); + _imp_draw_layout(ctx, drw_data, &lay); + + iks_stack_delete(lay.s); +} +/* +static void +text_span (render_ctx *ctx, text_ctx *tc, struct layout_s *lout, iks *node, char *text, int len) +{ + if (tc->bullet_flag && tc->bullet_sz) size = tc->bullet_sz; else size = r_get_font_size (ctx, tc, node); +} + +static int +is_animated (render_ctx *ctx, text_ctx *tc, iks *node) +{ + if (!ctx->step_mode) return 0; + if (!tc->id) return 0; + while (strcmp (iks_name (node), "draw:page") != 0 + && strcmp (iks_name (node), "style:master-page") != 0) + node = iks_parent (node); + node = iks_find (node, "presentation:animations"); + if (!node) return 0; + if (iks_find_with_attrib (node, "presentation:show-text", "draw:shape-id", tc->id)) return 1; + return 0; +} + +static void +text_p (render_ctx *ctx, text_ctx *tc, iks *node) +{ + if (is_animated (ctx, tc, node) && ctx->step_cnt >= ctx->step) lout->flag = 0; + ctx->step_cnt++; + + attr = r_get_style (ctx, node, "text:enable-numbering"); + if (attr && strcmp (attr, "true") == 0) { + if (iks_child (node) && tc->bullet) { + tc->bullet_flag = 1; + text_span (ctx, tc, lout, node, tc->bullet, strlen (tc->bullet)); + text_span (ctx, tc, lout, node, " ", 1); + tc->bullet_flag = 0; + } + } + + if (!lout->text) { +lout->h = 0; +attr = r_get_style (ctx, node, "fo:line-height"); +if (attr) { + int ratio = atoi (attr); + lout->lh = ratio; +} else { + lout->lh = 100; +} +tc->layouts = g_list_append (tc->layouts, lout); +// g_object_unref (lout->play); +// iks_stack_delete (s); + return; + } + + attr = r_get_style (ctx, node, "fo:text-align"); + if (attr) { + if (strcmp (attr, "center") == 0) + pango_layout_set_alignment (lout->play, PANGO_ALIGN_CENTER); + else if (strcmp (attr, "end") == 0) + pango_layout_set_alignment (lout->play, PANGO_ALIGN_RIGHT); + } + pango_layout_set_width (lout->play, tc->w * PANGO_SCALE); + pango_layout_set_markup (lout->play, lout->text, lout->text_len); + pango_layout_get_pixel_size (lout->play, &lout->w, &lout->h); + attr = r_get_style (ctx, node, "fo:line-height"); + if (attr) { + int ratio = atoi (attr); + lout->lh = ratio; + } else { + lout->lh = 100; + } + tc->layouts = g_list_append (tc->layouts, lout); +} + +static void +find_bullet (render_ctx *ctx, text_ctx *tc, iks *node) +{ + iks *x; + char *t; + x = r_get_bullet (ctx, node, "text:list-level-style-bullet"); + x = iks_find (x, "text:list-level-style-bullet"); + t = iks_find_attrib (x, "text:bullet-char"); + if (t) tc->bullet = t; else tc->bullet = "*"; + x = iks_find (x, "style:properties"); + t = iks_find_attrib (x, "fo:font-size"); + if (t) tc->bullet_sz = tc->last_sz * atoi (t) / 100; + else tc->bullet_sz = 0; +} + +void +r_text (render_ctx *ctx, iks *node) +{ + tc.id = iks_find_attrib (node, "draw:id"); + ctx->step_cnt = 0; + for (n = iks_first_tag (node); n; n = iks_next_tag (n)) { + if (strcmp (iks_name (n), "text:p") == 0) { + text_p (ctx, &tc, n); + } else if (strcmp (iks_name (n), "text:ordered-list") == 0) { + text_list (ctx, &tc, n); + } else if (strcmp (iks_name (n), "text:unordered-list") == 0) { + find_bullet (ctx, &tc, n); + text_list (ctx, &tc, n); + tc.bullet = 0; + } + } + +*/ diff --git a/backend/impress/render.c b/backend/impress/render.c new file mode 100644 index 00000000..67b80756 --- /dev/null +++ b/backend/impress/render.c @@ -0,0 +1,54 @@ +/* imposter (OO.org Impress viewer) +** Copyright (C) 2003-2005 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU General Public License. +*/ + +#include +#include "common.h" +#include "internal.h" + +ImpRenderCtx * +imp_create_context(const ImpDrawer *drw) +{ + ImpRenderCtx *ctx; + + ctx = calloc(1, sizeof(ImpRenderCtx)); + if (!ctx) return NULL; + ctx->drw = drw; + return ctx; +} + +void +imp_context_set_page(ImpRenderCtx *ctx, ImpPage *page) +{ + ctx->page = page; + ctx->content = page->doc->content; + ctx->styles = page->doc->styles; +} + +void +imp_context_set_step(ImpRenderCtx *ctx, int step) +{ + ctx->step = step; +} + +void +imp_render(ImpRenderCtx *ctx, void *drw_data) +{ + // find drawing area size + ctx->drw->get_size(drw_data, &ctx->pix_w, &ctx->pix_h); + // find page size + ctx->page->doc->get_geometry(ctx); + // calculate ratio + ctx->fact_x = ctx->pix_w / ctx->cm_w; + ctx->fact_y = ctx->pix_h / ctx->cm_h; + // call renderer + ctx->page->doc->render_page(ctx, drw_data); +} + +void +imp_delete_context(ImpRenderCtx *ctx) +{ + free(ctx); +} diff --git a/backend/impress/zip.c b/backend/impress/zip.c new file mode 100644 index 00000000..b1f25c8c --- /dev/null +++ b/backend/impress/zip.c @@ -0,0 +1,349 @@ +/* imposter (OO.org Impress viewer) +** Copyright (C) 2003-2005 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU General Public License. +*/ + +#include +#include "common.h" +#include "zip.h" +#include +#define _(x) x + +typedef unsigned long ulong; + +enum { + ZIP_OK = 0, + ZIP_NOMEM, + ZIP_NOSIG, + ZIP_BADZIP, + ZIP_NOMULTI, + ZIP_EOPEN, + ZIP_EREAD, + ZIP_NOFILE +}; + +struct zipfile { + struct zipfile *next; + char *name; + ulong crc; + ulong zip_size; + ulong real_size; + ulong pos; +}; + +struct zip_struct { + FILE *f; + struct zipfile *files; + ulong cd_pos; + ulong cd_size; + ulong cd_offset; + ulong head_size; + ulong rem_size; + ulong nr_files; +}; + +char * +zip_error (int err) +{ + char *ret; + + switch (err) { + case ZIP_OK: + ret = _("No error"); + break; + case ZIP_NOMEM: + ret = _("Not enough memory"); + break; + case ZIP_NOSIG: + ret = _("Cannot find ZIP signature"); + break; + case ZIP_BADZIP: + ret = _("Invalid ZIP file"); + break; + case ZIP_NOMULTI: + ret = _("Multi file ZIPs are not supported"); + break; + case ZIP_EOPEN: + ret = _("Cannot open the file"); + break; + case ZIP_EREAD: + ret = _("Cannot read data from file"); + break; + case ZIP_NOFILE: + ret = _("Cannot find file in the ZIP archive"); + break; + default: + ret = _("Unknown error"); + break; + } + return ret; +} + +static int +find_cd (zip *z) +{ + FILE *f; + char *buf; + ulong size, pos, i, flag; + + f = z->f; + if (fseek (f, 0, SEEK_END) != 0) return 1; + size = ftell (f); + if (size < 0xffff) pos = 0; else pos = size - 0xffff; + buf = malloc (size - pos + 1); + if (!buf) return 1; + if (fseek (f, pos, SEEK_SET) != 0) { + free (buf); + return 1; + } + if (fread (buf, size - pos, 1, f) != 1) { + free (buf); + return 1; + } + flag = 0; + for (i = size - pos - 3; i > 0; i--) { + if (buf[i] == 0x50 && buf[i+1] == 0x4b && buf[i+2] == 0x05 && buf[i+3] == 0x06) { + z->cd_pos = i + pos; + flag = 1; + break; + } + } + free (buf); + if (flag != 1) return 1; + return 0; +} + +static unsigned long +get_long (unsigned char *buf) +{ + return buf[0] + (buf[1] << 8) + (buf[2] << 16) + (buf[3] << 24); +} + +static unsigned long +get_word (unsigned char *buf) +{ + return buf[0] + (buf[1] << 8); +} + +static int +list_files (zip *z) +{ + unsigned char buf[46]; + struct zipfile *zfile; + ulong pat, fn_size; + int nr = 0; + + pat = z->cd_offset; + while (nr < z->nr_files) { + fseek (z->f, pat + z->head_size, SEEK_SET); + + if (fread (buf, 46, 1, z->f) != 1) return ZIP_EREAD; + if (get_long (buf) != 0x02014b50) return ZIP_BADZIP; + + zfile = malloc (sizeof (struct zipfile)); + if (!zfile) return ZIP_NOMEM; + memset (zfile, 0, sizeof (struct zipfile)); + + zfile->crc = get_long (buf + 16); + zfile->zip_size = get_long (buf + 20); + zfile->real_size = get_long (buf + 24); + fn_size = get_word (buf + 28); + zfile->pos = get_long (buf + 42); + + zfile->name = malloc (fn_size + 1); + if (!zfile->name) { + free (zfile); + return ZIP_NOMEM; + } + fread (zfile->name, fn_size, 1, z->f); + zfile->name[fn_size] = '\0'; + + zfile->next = z->files; + z->files = zfile; + + pat += 0x2e + fn_size + get_word (buf + 30) + get_word (buf + 32); + nr++; + } + return ZIP_OK; +} + +zip * +zip_open (const char *fname, int *err) +{ + unsigned char buf[22]; + zip *z; + FILE *f; + + f = fopen (fname, "rb"); + if (NULL == f) { + *err = ZIP_EOPEN; + return NULL; + } + + z = malloc (sizeof (zip)); + memset (z, 0, sizeof (zip)); + z->f = f; + + if (find_cd (z)) { + zip_close (z); + *err = ZIP_NOSIG; + return NULL; + } + + fseek (f, z->cd_pos, SEEK_SET); + if (fread (buf, 22, 1, f) != 1) { + zip_close (z); + *err = ZIP_EREAD; + return NULL; + } + z->nr_files = get_word (buf + 10); + if (get_word (buf + 8) != z->nr_files) { + zip_close (z); + *err = ZIP_NOMULTI; + return NULL; + } + z->cd_size = get_long (buf + 12); + z->cd_offset = get_long (buf + 16); + z->rem_size = get_word (buf + 20); + z->head_size = z->cd_pos - (z->cd_offset + z->cd_size); + + *err = list_files (z); + if (*err != ZIP_OK) { + zip_close (z); + return NULL; + } + + *err = ZIP_OK; + return z; +} + +void +zip_close (zip *z) +{ + struct zipfile *zfile, *tmp; + + zfile = z->files; + while (zfile) { + tmp = zfile->next; + if (zfile->name) free (zfile->name); + free (zfile); + zfile = tmp; + } + z->files = NULL; + if (z->f) fclose (z->f); + z->f = NULL; +} + +static struct zipfile * +find_file (zip *z, const char *name) +{ + struct zipfile *zfile; + + zfile = z->files; + while (zfile) { + if (strcmp (zfile->name, name) == 0) return zfile; + zfile = zfile->next; + } + return NULL; +} + +static int +seek_file (zip *z, struct zipfile *zfile) +{ + unsigned char buf[30]; + + fseek (z->f, zfile->pos + z->head_size, SEEK_SET); + if (fread (buf, 30, 1, z->f) != 1) return ZIP_EREAD; + if (get_long (buf) != 0x04034b50) return ZIP_BADZIP; + fseek (z->f, get_word (buf + 26) + get_word (buf + 28), SEEK_CUR); + return ZIP_OK; +} + +iks * +zip_load_xml (zip *z, const char *name, int *err) +{ + iksparser *prs; + char *real_buf; + iks *x; + struct zipfile *zfile; + + *err = ZIP_OK; + + zfile = find_file (z, name); + if (!zfile) { + *err = ZIP_NOFILE; + return NULL; + } + + seek_file (z, zfile); + + real_buf = malloc (zfile->real_size + 1); + if (zfile->zip_size < zfile->real_size) { + char *zip_buf; + z_stream zs; + zs.zalloc = NULL; + zs.zfree = NULL; + zs.opaque = NULL; + zip_buf = malloc (zfile->zip_size); + fread (zip_buf, zfile->zip_size, 1, z->f); + zs.next_in = zip_buf; + zs.avail_in = zfile->zip_size; + zs.next_out = real_buf; + zs.avail_out = zfile->real_size; + inflateInit2 (&zs, -MAX_WBITS); + inflate (&zs, Z_FINISH); + inflateEnd (&zs); + free (zip_buf); + } else { + fread (real_buf, zfile->real_size, 1, z->f); + } + + real_buf[zfile->real_size] = '\0'; + prs = iks_dom_new (&x); + iks_parse (prs, real_buf, zfile->real_size, 1); + iks_parser_delete (prs); + free (real_buf); + return x; +} + +unsigned long zip_get_size (zip *z, const char *name) +{ + struct zipfile *zf; + + zf = find_file (z, name); + if (!zf) return 0; + return zf->real_size; +} + +int zip_load (zip *z, const char *name, char *buf) +{ + struct zipfile *zfile; + + zfile = find_file (z, name); + if (!zfile) return ZIP_NOFILE; + + seek_file (z, zfile); + + if (zfile->zip_size < zfile->real_size) { + char *zip_buf; + z_stream zs; + zs.zalloc = NULL; + zs.zfree = NULL; + zs.opaque = NULL; + zip_buf = malloc (zfile->zip_size); + fread (zip_buf, zfile->zip_size, 1, z->f); + zs.next_in = zip_buf; + zs.avail_in = zfile->zip_size; + zs.next_out = buf; + zs.avail_out = zfile->real_size; + inflateInit2 (&zs, -MAX_WBITS); + inflate (&zs, Z_FINISH); + inflateEnd (&zs); + free (zip_buf); + } else { + fread (buf, zfile->real_size, 1, z->f); + } + + return ZIP_OK; +} diff --git a/backend/impress/zip.h b/backend/impress/zip.h new file mode 100644 index 00000000..23ff3631 --- /dev/null +++ b/backend/impress/zip.h @@ -0,0 +1,18 @@ +/* imposter (OO.org Impress viewer) +** Copyright (C) 2003-2005 Gurer Ozen +** This code is free software; you can redistribute it and/or +** modify it under the terms of GNU General Public License. +*/ + +struct zip_struct; +typedef struct zip_struct zip; + +char *zip_error (int err); + +zip *zip_open (const char *fname, int *err); +void zip_close (zip *z); + +iks *zip_load_xml (zip *z, const char *name, int *err); + +unsigned long zip_get_size (zip *z, const char *name); +int zip_load (zip *z, const char *name, char *buf); -- cgit v1.2.1