+++ /dev/null
-/*
- * GQview image viewer
- * (C)2000 John Ellis
- *
- * Author: John Ellis
- *
- */
-
-#include "gqview.h"
-#include "icons/img_unknown.xpm" /* fixme! duplicate, included in image.c too */
-
-#define THUMBNAIL_CACHE_DIR "/.gqview_thmb"
-
-static guchar *load_xv_thumbnail(gchar *filename, gint *widthp, gint *heightp);
-static void normalize_thumb(gint *width, gint *height);
-static gint get_xv_thumbnail(gchar *thumb_filename, GdkPixmap **thumb_pixmap, GdkBitmap **thumb_mask);
-
-/*
- *-----------------------------------------------------------------------------
- * thumbnail routines: creation, caching, and maintenance (public)
- *-----------------------------------------------------------------------------
- */
-
-gint create_thumbnail(gchar *path, GdkPixmap **thumb_pixmap, GdkBitmap **thumb_mask)
-{
- gint width, height;
- gint space;
- GdkImlibImage *thumb = NULL;
- GdkImlibImage *image = NULL;
- gint cached = FALSE;
-
- if (debug) printf("Gen thumbnail:%s\n",path);
-
- /* if xvpics enabled, check for that first */
- if (use_xvpics_thumbnails)
- {
- space = get_xv_thumbnail(path, thumb_pixmap, thumb_mask);
- if (space != -1)
- {
- if (debug) printf("XV thumbnail found, loaded\n");
- return space;
- }
- }
-
- /* start load from cache */
-
- if (enable_thumb_caching)
- {
- gchar *cache_path;
- cache_path = g_strconcat(homedir(), THUMBNAIL_CACHE_DIR, path, ".png", NULL);
-
- if (isfile(cache_path) && filetime(cache_path) >= filetime(path))
- {
- if (debug) printf("Found in cache:%s\n", path);
- image = gdk_imlib_load_image(cache_path);
- if (image && image->rgb_width != thumb_max_width && image->rgb_height != thumb_max_height)
- {
- if (debug) printf("Thumbnail size may have changed, reloading:%s\n", path);
- unlink(cache_path);
- gdk_imlib_destroy_image(image);
- image = gdk_imlib_load_image(path);
- }
- else
- {
- cached = TRUE;
- }
- }
- else
- image = gdk_imlib_load_image(path);
-
- }
- else
- image = gdk_imlib_load_image(path);
-
- if (!image)
- {
- image = gdk_imlib_create_image_from_xpm_data((gchar **)img_unknown_xpm);
- cached = TRUE; /* no need to save a thumbnail of the unknown pixmap */
- }
-
- if (image)
- {
- if (image->rgb_width > thumb_max_width || image->rgb_height > thumb_max_height)
- {
- if (((float)thumb_max_width / image->rgb_width) < ((float)thumb_max_height / image->rgb_height))
- {
- width = thumb_max_width;
- height = (float)width / image->rgb_width * image->rgb_height;
- if (height < 1) height = 1;
- }
- else
- {
- height = thumb_max_height;
- width = (float)height / image->rgb_height * image->rgb_width;
- if (width < 1) width = 1;
- }
- }
- else
- {
- width = image->rgb_width;
- height = image->rgb_height;
- cached = TRUE; /* don't cache images smaller than thumbnail size */
- }
- if (*thumb_pixmap) gdk_imlib_free_pixmap(*thumb_pixmap);
- *thumb_pixmap = NULL;
- *thumb_mask = NULL;
-
- /* start save cache */
-
- if (enable_thumb_caching && !cached)
- {
- gchar *thumb_path;
- gchar *base_dir;
- gchar *thumb_dir;
- gchar *image_dir;
-
- /* attempt at speed-up? move this here */
- thumb = gdk_imlib_clone_scaled_image(image, width, height);
- gdk_imlib_destroy_image(image);
- image = NULL;
-
- base_dir = g_strconcat(homedir(), THUMBNAIL_CACHE_DIR, NULL);
- if (!isdir(base_dir))
- {
- if (debug) printf("creating thumbnail dir:%s\n", base_dir);
- if (mkdir(base_dir, 0755) < 0)
- printf(_("create dir failed: %s\n"), base_dir);
- }
-
- image_dir = remove_level_from_path(path);
- thumb_dir = g_strconcat(base_dir, image_dir, NULL);
- g_free(image_dir);
- if (!isdir(thumb_dir))
- {
- gchar *p = thumb_dir;
- while (p[0] != '\0')
- {
- p++;
- if (p[0] == '/' || p[0] == '\0')
- {
- gint end = TRUE;
- if (p[0] != '\0')
- {
- p[0] = '\0';
- end = FALSE;
- }
- if (!isdir(thumb_dir))
- {
- if (debug) printf("creating sub dir:%s\n",thumb_dir);
- if (mkdir(thumb_dir, 0755) < 0)
- printf(_("create dir failed: %s\n"), thumb_dir);
- }
- if (!end) p[0] = '/';
- }
- }
- }
- g_free(thumb_dir);
-
- thumb_path = g_strconcat(base_dir, path, ".png", NULL);
- if (debug) printf("Saving thumb: %s\n",thumb_path);
-
- gdk_imlib_save_image(thumb, thumb_path, NULL);
-
- g_free(base_dir);
- g_free(thumb_path);
- }
- else
- {
- thumb = image;
- }
-
- /* end save cache */
-
- gdk_imlib_render(thumb, width, height);
- *thumb_pixmap = gdk_imlib_move_image(thumb);
- *thumb_mask = gdk_imlib_move_mask(thumb);
- if (*thumb_pixmap)
- space = thumb_max_width - width;
- gdk_imlib_destroy_image(thumb);
- thumb = NULL;
- }
- else
- {
- space = -1;
- }
- return space;
-}
-
-gint maintain_thumbnail_dir(gchar *dir, gint recursive)
-{
- gchar *thumb_dir;
- gint base_length;
- gint still_have_a_file = FALSE;
-
- if (debug) printf("maintainance check: %s\n", dir);
-
- base_length = strlen(homedir()) + strlen(THUMBNAIL_CACHE_DIR);
- thumb_dir = g_strconcat(homedir(), THUMBNAIL_CACHE_DIR, dir, NULL);
-
- if (isdir(thumb_dir))
- {
- DIR *dp;
- struct dirent *dirent;
- struct stat ent_sbuf;
-
- if((dp = opendir(thumb_dir))==NULL)
- {
- /* dir not found */
- g_free(thumb_dir);
- return FALSE;
- }
-
- while ((dirent = readdir(dp)) != NULL)
- {
- /* skips removed files */
- if (dirent->d_ino > 0)
- {
- int l = 0;
- gchar *path_buf;
- if (strcmp(dirent->d_name, ".") == 0 || strcmp(dirent->d_name, "..") == 0)
- continue;
- path_buf = g_strconcat(thumb_dir, "/", dirent->d_name, NULL);
- if (strlen(path_buf) > 4) l = strlen(path_buf) - 4;
-
- if (stat(path_buf,&ent_sbuf) >= 0 && S_ISDIR(ent_sbuf.st_mode))
- {
- /* recurse dir then delete it */
- gchar *rdir = g_strconcat(dir, "/", dirent->d_name, NULL);
- if (recursive && !maintain_thumbnail_dir(rdir, TRUE))
- {
- if (debug) printf("Deleting thumb dir: %s\n",path_buf);
- if ( (rmdir (path_buf) < 0) )
- printf(_("Unable to delete dir: %s\n"), path_buf);
- }
- else
- still_have_a_file = TRUE;
- g_free(rdir);
- }
- else
- {
- gchar *fp = path_buf + l;
- fp[0] = '\0';
- if (strlen(path_buf) > base_length &&
- !isfile(path_buf + base_length))
- {
- fp[0] = '.';
- if (debug) printf("Deleting thumb: %s\n",path_buf);
- if ( (unlink (path_buf) < 0) )
- printf(_("failed to delete:%s\n"),path_buf);
- }
- else
- still_have_a_file = TRUE;
- }
- g_free(path_buf);
- }
- }
- closedir(dp);
- }
- g_free(thumb_dir);
- return still_have_a_file;
-}
-
-/*
- *-----------------------------------------------------------------------------
- * xvpics thumbnail support, read-only (private)
- *-----------------------------------------------------------------------------
- */
-
-/*
- * xvpics code originally supplied by:
- * "Diederen Damien" <D.Diederen@student.ulg.ac.be>
- *
- * Note: Code has been modified to fit the style of the other code, and to use
- * a few more glib-isms.
- */
-
-#define XV_BUFFER 2048
-static guchar *load_xv_thumbnail(gchar *filename, gint *widthp, gint *heightp)
-{
- FILE *file;
- gchar buffer[XV_BUFFER];
- guchar *data;
- gint width, height, depth;
-
- file = fopen(filename, "rt");
- if(!file) return NULL;
-
- fgets(buffer, XV_BUFFER, file);
- if(strncmp(buffer, "P7 332", 6) != 0)
- {
- fclose(file);
- return NULL;
- }
-
- while(fgets(buffer, XV_BUFFER, file) && buffer[0] == '#') /* do_nothing() */;
-
- if(sscanf(buffer, "%d %d %d", &width, &height, &depth) != 3)
- {
- fclose(file);
- return NULL;
- }
-
- data = g_new(guchar, width * height);
- fread(data, 1, width * height, file);
-
- fclose(file);
- *widthp = width;
- *heightp = height;
- return data;
-}
-#undef XV_BUFFER
-
-static void normalize_thumb(gint *width, gint *height)
-{
- if(*width > thumb_max_width || *height > thumb_max_height)
- {
- gfloat factor = MAX((gfloat) *width / thumb_max_width, (gfloat) *height / thumb_max_height);
- *width = (gfloat) *width / factor;
- *height = (gfloat) *height / factor;
- }
-}
-
-static gint get_xv_thumbnail(gchar *thumb_filename, GdkPixmap **thumb_pixmap, GdkBitmap **thumb_mask)
-{
- gint width, height;
- gchar *thumb_name;
- gchar *tmp_string;
- gchar *last_slash;
- guchar *packed_data;
-
- tmp_string = g_strdup(thumb_filename);
- last_slash = strrchr(tmp_string, '/');
- if(!last_slash) return -1;
- *last_slash++ = '\0';
-
- thumb_name = g_strconcat(tmp_string, "/.xvpics/", last_slash, NULL);
- packed_data = load_xv_thumbnail(thumb_name, &width, &height);
- g_free(tmp_string);
- g_free(thumb_name);
-
- if(packed_data)
- {
- guchar *rgb_data;
- GdkImlibImage *image;
- gint i;
-
- rgb_data = g_new(guchar, width * height * 3);
- for(i = 0; i < width * height; i++)
- {
- rgb_data[i * 3 + 0] = (packed_data[i] >> 5) * 36;
- rgb_data[i * 3 + 1] = ((packed_data[i] & 28) >> 2) * 36;
- rgb_data[i * 3 + 2] = (packed_data[i] & 3) * 85;
- }
-
- g_free(packed_data);
- image = gdk_imlib_create_image_from_data(rgb_data, NULL, width, height);
- g_free(rgb_data);
- normalize_thumb(&width, &height);
- gdk_imlib_render(image, width, height);
-
- if(*thumb_pixmap) gdk_imlib_free_pixmap(*thumb_pixmap);
-
- *thumb_pixmap = gdk_imlib_move_image(image);
- *thumb_mask = gdk_imlib_move_mask(image);
- gdk_imlib_destroy_image(image);
- return thumb_max_width - width;
- }
-
- return -1;
-}
-
projects / geeqie.git / blobdiff