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Diffstat (limited to 'backend/impress/impress-document.c')
| -rw-r--r-- | backend/impress/impress-document.c | 548 |
1 files changed, 0 insertions, 548 deletions
diff --git a/backend/impress/impress-document.c b/backend/impress/impress-document.c deleted file mode 100644 index 5254a881..00000000 --- a/backend/impress/impress-document.c +++ /dev/null @@ -1,548 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */ -/* - * Copyright (C) 2005, Jonathan Blandford <[email protected]> - * Copyright (C) 2005, Bastien Nocera <[email protected]> - * - * 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 <string.h> - -#include <glib/gi18n-lib.h> -#include <gtk/gtk.h> - -#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("<span size ='%d'>%s</span>", 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 - */ |