Parent Directory
| 
Revision Log
Parent Directory
| Revision Log
Initial import
| 1 | /* |
| 2 | * Copyright (C) 2008 Till Harbaum <till@harbaum.org>. |
| 3 | * |
| 4 | * This file is part of OSM2Go. |
| 5 | * |
| 6 | * OSM2Go is free software: you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation, either version 3 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * OSM2Go is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with OSM2Go. If not, see <http://www.gnu.org/licenses/>. |
| 18 | */ |
| 19 | |
| 20 | #include <sys/stat.h> |
| 21 | #include "appdata.h" |
| 22 | |
| 23 | static const char *icon_exts[] = { |
| 24 | "gif", "png", "jpg", "" |
| 25 | }; |
| 26 | |
| 27 | static gchar* |
| 28 | icon_file_exists(const gchar *file) { |
| 29 | gchar *filename, *fullname; |
| 30 | gint idx = 0; |
| 31 | |
| 32 | while(icon_exts[idx][0]) { |
| 33 | filename = g_strdup_printf("icons/%s.%s", file, icon_exts[idx]); |
| 34 | fullname = find_file(filename); |
| 35 | g_free(filename); |
| 36 | |
| 37 | if(fullname) |
| 38 | return fullname; |
| 39 | |
| 40 | idx++; |
| 41 | } |
| 42 | return NULL; |
| 43 | } |
| 44 | |
| 45 | GdkPixbuf *icon_load(icon_t **icon, const char *name) { |
| 46 | if(!name) return NULL; |
| 47 | |
| 48 | /* check if icon list already contains an icon of that name */ |
| 49 | while(*icon) { |
| 50 | if(strcmp(name, (*icon)->name) == 0) { |
| 51 | // printf("reuse existing icon\n"); |
| 52 | (*icon)->use++; |
| 53 | return (*icon)->buf; |
| 54 | } |
| 55 | |
| 56 | icon = &((*icon)->next); |
| 57 | } |
| 58 | |
| 59 | gchar *fullname = icon_file_exists(name); |
| 60 | if(fullname) { |
| 61 | GdkPixbuf *pix = gdk_pixbuf_new_from_file(fullname, NULL); |
| 62 | g_free(fullname); |
| 63 | |
| 64 | // printf("Successfully loaded icon %s to %p\n", name, pix); |
| 65 | *icon = g_new0(icon_t, 1); |
| 66 | (*icon)->name = strdup(name); |
| 67 | (*icon)->buf = pix; |
| 68 | (*icon)->use = 1; |
| 69 | |
| 70 | return pix; |
| 71 | } |
| 72 | |
| 73 | printf("Icon %s not found\n", name); |
| 74 | return NULL; |
| 75 | } |
| 76 | |
| 77 | GtkWidget *icon_widget_load(icon_t **icon, const char *name) { |
| 78 | GdkPixbuf *pix = icon_load(icon, name); |
| 79 | if(!pix) return NULL; |
| 80 | |
| 81 | return gtk_image_new_from_pixbuf(pix); |
| 82 | } |
| 83 | |
| 84 | void icon_free(icon_t **icon, GdkPixbuf *buf) { |
| 85 | // printf("request to free icon %p\n", buf); |
| 86 | |
| 87 | while(*icon) { |
| 88 | // printf(" -> %s %p\n", (*icon)->name, (*icon)->buf); |
| 89 | |
| 90 | if(buf == (*icon)->buf) { |
| 91 | (*icon)->use--; |
| 92 | if(!(*icon)->use) { |
| 93 | printf("freeing unused icon %s\n", (*icon)->name); |
| 94 | |
| 95 | g_free((*icon)->name); |
| 96 | gdk_pixbuf_unref((*icon)->buf); |
| 97 | icon_t *next = (*icon)->next; |
| 98 | g_free(*icon); |
| 99 | *icon = next; |
| 100 | |
| 101 | } else |
| 102 | printf("keeping icon %s still in use by %d\n", |
| 103 | (*icon)->name, (*icon)->use); |
| 104 | |
| 105 | return; |
| 106 | } |
| 107 | icon = &((*icon)->next); |
| 108 | } |
| 109 | |
| 110 | printf("ERROR: icon to be freed not found\n"); |
| 111 | } |
| 112 | |
| 113 | void icon_free_all(icon_t **icons) { |
| 114 | int cnt = 0; |
| 115 | |
| 116 | icon_t *icon = *icons; |
| 117 | while(icon) { |
| 118 | cnt++; |
| 119 | g_free(icon->name); |
| 120 | gdk_pixbuf_unref(icon->buf); |
| 121 | icon_t *next = icon->next; |
| 122 | g_free(icon); |
| 123 | icon = next; |
| 124 | } |
| 125 | |
| 126 | *icons = NULL; |
| 127 | |
| 128 | printf("freed %d icons\n", cnt); |
| 129 | } |