2009-05-08 20:42:34 +00:00
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/* Conky, a system monitor, based on torsmo
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*
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* Please see COPYING for details
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*
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* Copyright (c) 2005-2009 Brenden Matthews, et. al.
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* All rights reserved.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "imlib2.h"
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#include "config.h"
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#include "logging.h"
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#include <Imlib2.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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2009-05-17 05:47:02 +00:00
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#define NAME_SIZE 1024
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2009-05-08 20:42:34 +00:00
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struct image_list_s {
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2009-05-17 05:47:02 +00:00
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char name[NAME_SIZE];
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2009-05-08 20:42:34 +00:00
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Imlib_Image image;
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2009-05-17 05:47:02 +00:00
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int x, y, w, h;
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int wh_set;
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2009-05-08 20:42:34 +00:00
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struct image_list_s *prev;
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struct image_list_s *next;
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};
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struct image_list_s *image_list_start, *image_list_end;
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/* areas to update */
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Imlib_Updates updates, current_update;
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/* our virtual framebuffer image we draw into */
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Imlib_Image buffer, image;
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#define DEFAULT_CACHE_SIZE 4096 * 1024 /* default cache size for loaded images */
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void cimlib_set_cache_size(long size)
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{
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2009-05-17 05:47:02 +00:00
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imlib_set_cache_size(size);
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2009-05-08 20:42:34 +00:00
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}
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void cimlib_cleanup(void)
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{
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struct image_list_s *cur = image_list_start, *last = NULL;
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while (cur) {
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last = cur;
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cur = last->next;
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free(last);
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}
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image_list_start = image_list_end = NULL;
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}
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2009-05-17 05:47:02 +00:00
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void cimlib_init(Display *display, Window drawable, Visual *visual, Colormap colourmap)
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2009-05-08 20:42:34 +00:00
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{
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image_list_start = image_list_end = NULL;
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cimlib_set_cache_size(DEFAULT_CACHE_SIZE);
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/* set the maximum number of colors to allocate for 8bpp and less to 256 */
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imlib_set_color_usage(256);
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/* dither for depths < 24bpp */
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imlib_context_set_dither(1);
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/* set the display , visual, colormap and drawable we are using */
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imlib_context_set_display(display);
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imlib_context_set_visual(visual);
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imlib_context_set_colormap(colourmap);
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2009-05-17 05:47:02 +00:00
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imlib_context_set_drawable(drawable);
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2009-05-08 20:42:34 +00:00
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}
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2009-05-17 05:47:02 +00:00
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void cimlib_add_image(const char *args)
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2009-05-08 20:42:34 +00:00
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{
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struct image_list_s *cur = NULL;
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2009-05-17 05:47:02 +00:00
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char *tmp;
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2009-05-08 20:42:34 +00:00
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cur = malloc(sizeof(struct image_list_s));
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memset(cur, 0, sizeof(struct image_list_s));
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2009-05-17 05:47:02 +00:00
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if (!sscanf(args, "%1024s", cur->name)) {
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ERR("Invalid args for $image. Format is: '<path to image> (-p x,y) (-s WxH)' (got '%s')", args);
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}
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// now we check for optional args
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tmp = strstr(args, "-p ");
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if (tmp) {
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tmp += 3;
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sscanf(tmp, "%i,%i", &cur->x, &cur->y);
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}
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tmp = strstr(args, "-s ");
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if (tmp) {
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tmp += 3;
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if (sscanf(tmp, "%ix%i", &cur->w, &cur->h)) {
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cur->wh_set = 1;
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}
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}
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2009-05-08 20:42:34 +00:00
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if (image_list_end) {
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image_list_end->next = cur;
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cur->prev = image_list_end;
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image_list_end = cur;
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} else {
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image_list_start = image_list_end = cur;
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}
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}
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static void cimlib_draw_image(struct image_list_s *cur)
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{
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image = imlib_load_image(cur->name);
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if (image) {
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int w, h;
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2009-05-18 05:11:22 +00:00
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DBGP("Drawing image '%s' at (%i,%i) scaled to %ix%i", cur->name, cur->x, cur->y, cur->w, cur->h);
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2009-05-08 20:42:34 +00:00
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imlib_context_set_image(image);
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w = imlib_image_get_width();
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h = imlib_image_get_height();
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imlib_context_set_image(buffer);
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2009-05-17 05:47:02 +00:00
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imlib_blend_image_onto_image(image, 1, 0, 0, h, w,
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cur->x, cur->y, cur->w, cur->h);
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2009-05-08 20:42:34 +00:00
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imlib_context_set_image(image);
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imlib_free_image();
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} else {
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ERR("Unable to load image '%s'", cur->name);
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}
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}
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static void cimlib_draw_all(void)
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{
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struct image_list_s *cur = image_list_start;
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while (cur) {
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cimlib_draw_image(cur);
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cur = cur->next;
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}
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}
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2009-05-18 05:11:22 +00:00
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void cimlib_render(int x, int y, int width, int height)
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2009-05-08 20:42:34 +00:00
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{
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if (!image_list_start) return; /* are we actually drawing anything? */
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/* take all the little rectangles to redraw and merge them into
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* something sane for rendering */
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2009-05-17 05:47:02 +00:00
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buffer = imlib_create_image(width, height);
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2009-05-18 05:11:22 +00:00
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/* clear our buffer */
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imlib_context_set_image(buffer);
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imlib_image_clear();
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2009-05-17 05:47:02 +00:00
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/* we can blend stuff now */
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imlib_context_set_blend(1);
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cimlib_draw_all();
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/* set the buffer image as our current image */
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imlib_context_set_image(buffer);
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/* render the image at 0, 0 */
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imlib_render_image_on_drawable(x, y);
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/* don't need that temporary buffer image anymore */
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imlib_free_image();
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2009-05-08 20:42:34 +00:00
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}
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