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+/* collage.c
+
+Copyright (C) 1999-2003 Tom Gilbert.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies of the Software and its documentation and acknowledgment shall be
+given in the documentation and software packages that this Software was
+used.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+*/
+
+#include "feh.h"
+#include "winwidget.h"
+#include "filelist.h"
+#include "options.h"
+
+void
+init_collage_mode(void)
+{
+ Imlib_Image im_main;
+ Imlib_Image im_temp;
+ int ww, hh, www, hhh, xxx, yyy;
+ int w = 800, h = 600;
+ int bg_w = 0, bg_h = 0;
+ winwidget winwid = NULL;
+ Imlib_Image bg_im = NULL, im_thumb = NULL;
+ feh_file *file = NULL;
+ unsigned char trans_bg = 0;
+ gib_list *l, *last = NULL;
+ char *s;
+
+ D_ENTER(4);
+
+ mode = "collage";
+
+ /* Use bg image dimensions for default size */
+ if (opt.bg && opt.bg_file)
+ {
+ if (!strcmp(opt.bg_file, "trans"))
+ trans_bg = 1;
+ else
+ {
+
+ D(4,("Time to apply a background to blend onto\n"));
+ if (feh_load_image_char(&bg_im, opt.bg_file) != 0)
+ {
+ bg_w = gib_imlib_image_get_width(bg_im);
+ bg_h = gib_imlib_image_get_height(bg_im);
+ }
+ }
+ }
+
+ if (!opt.limit_w || !opt.limit_h)
+ {
+ if (bg_im)
+ {
+ if (opt.verbose)
+ fprintf(stdout,
+ PACKAGE " - No size restriction specified for collage.\n"
+ " You did specify a background however, so the\n"
+ " collage size has defaulted to the size of the image\n");
+ opt.limit_w = bg_w;
+ opt.limit_h = bg_h;
+ }
+ else
+ {
+ if (opt.verbose)
+ fprintf(stdout,
+ PACKAGE " - No size restriction specified for collage.\n"
+ " - For collage mode, you need to specify width and height.\n"
+ " Using defaults (width 800, height 600)\n");
+ opt.limit_w = 800;
+ opt.limit_h = 600;
+ }
+ }
+
+ w = opt.limit_w;
+ h = opt.limit_h;
+ D(4,("Limiting width to %d and height to %d\n", w, h));
+
+ im_main = imlib_create_image(w, h);
+
+ if (!im_main)
+ eprintf("Imlib error creating image");
+
+ if (bg_im)
+ gib_imlib_blend_image_onto_image(im_main, bg_im,
+ gib_imlib_image_has_alpha(bg_im), 0, 0,
+ bg_w, bg_h, 0, 0, w, h, 1, 0, 0);
+ else if (trans_bg)
+ {
+ gib_imlib_image_fill_rectangle(im_main, 0, 0, w, h, 0, 0, 0, 0);
+ gib_imlib_image_set_has_alpha(im_main, 1);
+ }
+ else
+ {
+ /* Colour the background */
+ gib_imlib_image_fill_rectangle(im_main, 0, 0, w, h, 0, 0, 0, 255);
+ }
+
+ /* Create the title string */
+
+ if (!opt.title)
+ s = estrdup(PACKAGE " [collage mode]");
+ else
+ s = estrdup(feh_printf(opt.title, NULL));
+
+ if (opt.display)
+ {
+ winwid =
+ winwidget_create_from_image(im_main, s, WIN_TYPE_SINGLE);
+ winwidget_show(winwid);
+ }
+
+
+ for (l = filelist; l; l = l->next)
+ {
+ file = FEH_FILE(l->data);
+ if (last)
+ {
+ filelist = feh_file_remove_from_list(filelist, last);
+ filelist_len--;
+ last = NULL;
+ }
+ D(3,("About to load image %s\n", file->filename));
+ if (feh_load_image(&im_temp, file) != 0)
+ {
+ D(3,("Successfully loaded %s\n", file->filename));
+ if (opt.verbose)
+ feh_display_status('.');
+ www = opt.thumb_w;
+ hhh = opt.thumb_h;
+ ww = gib_imlib_image_get_width(im_temp);
+ hh = gib_imlib_image_get_height(im_temp);
+
+ if (opt.aspect)
+ {
+ double ratio = 0.0;
+
+ /* Keep the aspect ratio for the thumbnail */
+ ratio = ((double) ww / hh) / ((double) www / hhh);
+
+ if (ratio > 1.0)
+ hhh = opt.thumb_h / ratio;
+ else if (ratio != 1.0)
+ www = opt.thumb_w * ratio;
+ }
+
+ if ((!opt.stretch) && ((www > ww) || (hhh > hh)))
+ {
+ /* Don't make the image larger unless stretch is specified */
+ www = ww;
+ hhh = hh;
+ }
+
+ /* pick random coords for thumbnail */
+ xxx = ((w - www) * ((double) rand() / RAND_MAX));
+ yyy = ((h - hhh) * ((double) rand() / RAND_MAX));
+ D(5,("image going on at x=%d, y=%d\n", xxx, yyy));
+
+ im_thumb =
+ gib_imlib_create_cropped_scaled_image(im_temp, 0, 0, ww, hh, www,
+ hhh, 1);
+ gib_imlib_free_image_and_decache(im_temp);
+
+ if (opt.alpha)
+ {
+ DATA8 atab[256];
+
+ D(4,("Applying alpha options\n"));
+ gib_imlib_image_set_has_alpha(im_thumb, 1);
+ memset(atab, opt.alpha_level, sizeof(atab));
+ gib_imlib_apply_color_modifier_to_rectangle(im_thumb, 0, 0, www,
+ hhh, NULL, NULL, NULL,
+ atab);
+ }
+ gib_imlib_blend_image_onto_image(im_main, im_thumb,
+ gib_imlib_image_has_alpha(im_thumb),
+ 0, 0, www, hhh, xxx, yyy, www, hhh,
+ 1,
+ gib_imlib_image_has_alpha(im_thumb),
+ 0);
+ gib_imlib_free_image_and_decache(im_thumb);
+ }
+ else
+ {
+ last = l;
+ if (opt.verbose)
+ feh_display_status('x');
+ }
+ if (opt.display)
+ {
+ winwidget_render_image(winwid, 0, 0);
+ if (!feh_main_iteration(0))
+ exit(0);
+ }
+ }
+ if (opt.verbose)
+ fprintf(stdout, "\n");
+
+ if (opt.output && opt.output_file)
+ {
+ char output_buf[1024];
+ if (opt.output_dir)
+ snprintf(output_buf,1024,"%s/%s", opt.output_dir, opt.output_file);
+ else
+ strncpy(output_buf,opt.output_file, 1024);
+ gib_imlib_save_image(im_main, output_buf);
+ if (opt.verbose)
+ {
+ int tw, th;
+
+ tw = gib_imlib_image_get_width(im_main);
+ th = gib_imlib_image_get_height(im_main);
+ fprintf(stdout, PACKAGE " - File saved as %s\n", output_buf);
+ fprintf(stdout,
+ " - Image is %dx%d pixels and contains %d thumbnails\n",
+ tw, th, (tw / opt.thumb_w) * (th / opt.thumb_h));
+ }
+ }
+
+ if (!opt.display)
+ gib_imlib_free_image_and_decache(im_main);
+ free(s);
+ D_RETURN_(4);
+}