inicial

1 files changed, 120 insertions, 0 deletions

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