ui/gtk/image.c

Thu, 08 Feb 2024 10:31:19 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Thu, 08 Feb 2024 10:31:19 +0100
changeset 24
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parent 0
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child 29
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permissions
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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2017 Olaf Wintermann. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #include <stdio.h>
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30 #include <stdlib.h>
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31 #include <string.h>
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32 #include <cx/map.h>
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33
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34 #include "toolkit.h"
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35 #include "image.h"
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36 #include "../common/properties.h"
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37
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38 static CxMap *image_map;
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39
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40 static GtkIconTheme *icon_theme;
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41
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42 void ui_image_init(void) {
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43 image_map = cxHashMapCreateSimple(CX_STORE_POINTERS);
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44
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45 icon_theme = gtk_icon_theme_get_default();
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46 }
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47
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48 // **** deprecated functions ****
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49
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50 GdkPixbuf* ui_get_image(const char *name) {
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51 UiImage *img = cxMapGet(image_map, name);
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52 if(img) {
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53 return img->pixbuf;
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54 } else {
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55 //ui_add_image(name, name);
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56 //return ucx_map_cstr_get(image_map, name);
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57 // TODO
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58 return NULL;
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59 }
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60 }
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61
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62 // **** new functions ****
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63
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64 static UiIcon* get_icon(const char *name, int size, int scale) {
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65 #ifdef UI_SUPPORTS_SCALE
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66 GtkIconInfo *info = gtk_icon_theme_lookup_icon_for_scale(icon_theme, name, size, scale, 0);
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67 #else
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68 GtkIconInfo *info = gtk_icon_theme_lookup_icon(icon_theme, name, size, 0);
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69 #endif
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70 if(info) {
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71 UiIcon *icon = malloc(sizeof(UiIcon));
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72 icon->info = info;
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73 return icon;
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74 }
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75 return NULL;
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76 }
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77
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78 UiIcon* ui_icon(const char *name, int size) {
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79 return get_icon(name, size, ui_get_scalefactor());
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80 }
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81
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82 UiIcon* ui_icon_unscaled(const char *name, int size) {
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83 return get_icon(name, size, 1);
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84 }
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85
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86 void ui_free_icon(UiIcon *icon) {
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87 g_object_unref(icon->info);
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88 free(icon);
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89 }
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90
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91 UiImage* ui_icon_image(UiIcon *icon) {
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92 GError *error = NULL;
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93 GdkPixbuf *pixbuf = gtk_icon_info_load_icon(icon->info, &error);
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94 if(pixbuf) {
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95 UiImage *img = malloc(sizeof(UiImage));
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96 img->pixbuf = pixbuf;
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97 return img;
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98 }
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99 return NULL;
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100 }
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101
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102 UiImage* ui_image(const char *filename) {
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103 return ui_named_image(filename, NULL);
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104 }
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105
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106 UiImage* ui_named_image(const char *filename, const char *name) {
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107 char *path = uic_get_image_path(filename);
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108 if(!path) {
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109 fprintf(stderr, "UiError: pixmaps directory not set\n");
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110 return NULL;
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111 }
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112 UiImage *img = ui_load_image_from_path(path, name);
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113 free(path);
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114 return img;
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115 }
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116
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117 UiImage* ui_load_image_from_path(const char *path, const char *name) {
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118 GError *error = NULL;
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119 GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(path, &error);
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120 if(!pixbuf) {
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121 fprintf(stderr, "UiError: Cannot load image: %s\n", path);
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122 return NULL;
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123 }
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124
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125 UiImage *img = malloc(sizeof(UiImage));
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126 img->pixbuf = pixbuf;
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127 if(name) {
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128 cxMapPut(image_map, name, img);
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129 }
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130 return img;
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131 }
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132
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133 void ui_free_image(UiImage *img) {
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134 g_object_unref(img->pixbuf);
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135 free(img);
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136 }

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