Wed, 30 Oct 2024 10:14:47 +0100
fix incorrect UiVar destruction
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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 2024 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 "image.h" |
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30 | |
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31 | #include "container.h" |
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32 | #include "../common/context.h" |
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33 | #include "../common/object.h" |
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34 | |
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35 | |
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36 | UIWIDGET ui_imageviewer_create(UiObject *obj, UiImageViewerArgs args) { |
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37 | UiObject *current = uic_current_obj(obj); |
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38 | |
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39 | GtkWidget *scrolledwindow = SCROLLEDWINDOW_NEW(); |
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40 | #if GTK_CHECK_VERSION(4, 0, 0) |
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41 | GtkWidget *image = gtk_picture_new(); |
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42 | #else |
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43 | GtkWidget *image = gtk_image_new(); |
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44 | #endif |
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45 | |
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46 | ui_set_name_and_style(image, args.name, args.style_class); |
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47 | |
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48 | #if GTK_MAJOR_VERSION < 4 |
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49 | GtkWidget *eventbox = gtk_event_box_new(); |
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50 | SCROLLEDWINDOW_SET_CHILD(scrolledwindow, eventbox); |
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51 | gtk_container_add(GTK_CONTAINER(eventbox), image); |
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52 | #else |
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53 | SCROLLEDWINDOW_SET_CHILD(scrolledwindow, image); |
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54 | #endif |
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55 | |
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56 | UI_APPLY_LAYOUT1(current, args); |
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57 | current->container->add(current->container, scrolledwindow, TRUE); |
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58 | |
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59 | UiVar *var = uic_widget_var(obj->ctx, current->ctx, args.value, args.varname, UI_VAR_GENERIC); |
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60 | if(var) { |
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61 | UiGeneric *value = var->value; |
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62 | value->get = ui_imageviewer_get; |
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63 | value->get_type = ui_imageviewer_get_type; |
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64 | value->set = ui_imageviewer_set; |
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65 | value->obj = image; |
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66 | if(value->value && value->type && !strcmp(value->type, UI_IMAGE_OBJECT_TYPE)) { |
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67 | GdkPixbuf *pixbuf = value->value; |
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68 | value->value = NULL; |
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69 | ui_imageviewer_set(value, pixbuf, UI_IMAGE_OBJECT_TYPE); |
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70 | } |
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71 | } |
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72 | |
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73 | return scrolledwindow; |
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74 | } |
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75 | |
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76 | void* ui_imageviewer_get(UiGeneric *g) { |
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77 | return g->value; |
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78 | } |
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79 | |
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80 | const char* ui_imageviewer_get_type(UiGeneric *g) { |
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81 | |
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82 | } |
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83 | |
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84 | int ui_imageviewer_set(UiGeneric *g, void *value, const char *type) { |
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85 | if(!type || strcmp(type, UI_IMAGE_OBJECT_TYPE)) { |
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86 | return 1; |
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87 | } |
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88 | |
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89 | // TODO: do we need to free the previous value here? |
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90 | |
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91 | g->value = value; |
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92 | g->type = type; |
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93 | GdkPixbuf *pixbuf = value; |
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94 | |
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95 | if(pixbuf) { |
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96 | int width, height; |
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97 | #if GTK_CHECK_VERSION(4, 12, 0) |
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98 | GdkTexture *texture = gdk_texture_new_for_pixbuf(pixbuf); |
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99 | gtk_picture_set_paintable(GTK_PICTURE(g->obj), GDK_PAINTABLE(texture)); |
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100 | width = gdk_texture_get_width(texture); |
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101 | height = gdk_texture_get_height(texture); |
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102 | #else |
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103 | gtk_image_set_from_pixbuf(GTK_IMAGE(g->obj), pixbuf); |
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104 | #endif |
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105 | gtk_widget_set_size_request(g->obj, width, height); |
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106 | } |
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107 | |
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108 | |
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109 | return 0; |
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110 | } |
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111 | |
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112 | |
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113 | |
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114 | int ui_image_load_file(UiGeneric *obj, const char *path) { |
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115 | GError *error = NULL; |
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116 | GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(path, &error); |
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117 | if(!pixbuf) { |
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118 | return 1; |
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119 | } |
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120 | |
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121 | if(obj->set) { |
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122 | obj->set(obj, pixbuf, UI_IMAGE_OBJECT_TYPE); |
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123 | } else { |
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124 | obj->value = pixbuf; |
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125 | } |
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126 | |
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127 | return 0; |
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128 | } |