inicial

1 files changed, 208 insertions, 0 deletions

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 <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);
+}