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/* 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 <config.h>
#include "common.h"
#include "internal.h"
#include <math.h>
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);
}
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