ui/gtk/menu.c

Thu, 21 Nov 2024 13:17:56 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Thu, 21 Nov 2024 13:17:56 +0100
branch
newapi
changeset 389
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parent 388
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child 390
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permissions
-rw-r--r--

implement image viewer context menus (GTK)

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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 <inttypes.h>
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32 #include <stdarg.h>
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33
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34 #include "menu.h"
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35 #include "toolkit.h"
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36 #include "../common/context.h"
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37 #include "../common/menu.h"
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38 #include "../ui/properties.h"
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39 #include "../ui/window.h"
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40 #include "container.h"
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41
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42 #include <cx/linked_list.h>
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43 #include <cx/array_list.h>
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44
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45 #if GTK_MAJOR_VERSION <= 3
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46
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47 static ui_menu_add_f createMenuItem[] = {
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48 /* UI_MENU */ add_menu_widget,
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49 /* UI_MENU_ITEM */ add_menuitem_widget,
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50 /* UI_MENU_CHECK_ITEM */ add_checkitem_widget,
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51 /* UI_MENU_RADIO_ITEM */ add_radioitem_widget,
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52 /* UI_MENU_ITEM_LIST */ add_menuitem_list_widget,
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53 /* UI_MENU_CHECKITEM_LIST */ add_menuitem_list_widget,
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54 /* UI_MENU_RADIOITEM_LIST */ add_menuitem_list_widget,
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55 /* UI_MENU_SEPARATOR */ add_menuseparator_widget
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56 };
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57
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58 // private menu functions
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59 GtkWidget *ui_create_menubar(UiObject *obj) {
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60 UiMenu *menus_begin = uic_get_menu_list();
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61 if(menus_begin == NULL) {
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62 return NULL;
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63 }
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64
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65 GtkWidget *mb = gtk_menu_bar_new();
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66
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67 UiMenu *ls = menus_begin;
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68 while(ls) {
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69 UiMenu *menu = ls;
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70 add_menu_widget(mb, 0, &menu->item, obj);
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71
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72 ls = (UiMenu*)ls->item.next;
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73 }
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74
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75 return mb;
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76 }
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77
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78 GtkMenu* ui_create_menu(UiMenuBuilder *builder, UiObject *obj) {
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79 GtkWidget *menu_widget = gtk_menu_new();
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80 ui_add_menu_items(menu_widget, 0, builder->menus_begin, obj);
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81 return GTK_MENU(menu_widget);
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82 }
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83
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84 void ui_add_menu_items(GtkWidget *parent, int i, UiMenu *menu, UiObject *obj) {
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85 UiMenuItemI *it = menu->items_begin;
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86 int index = 0;
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87 while(it) {
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88 createMenuItem[it->type](parent, index, it, obj);
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89 it = it->next;
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90 index++;
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91 }
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92 }
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93
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94 void add_menu_widget(GtkWidget *parent, int i, UiMenuItemI *item, UiObject *obj) {
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95 UiMenu *menu = (UiMenu*)item;
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96
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97 GtkWidget *menu_widget = gtk_menu_new();
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98 GtkWidget *menu_item = gtk_menu_item_new_with_mnemonic(menu->label);
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99 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menu_item), menu_widget);
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100
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101 ui_add_menu_items(menu_widget, i, menu, obj);
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102
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103
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104 gtk_menu_shell_append(GTK_MENU_SHELL(parent), menu_item);
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105 }
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106
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107 void add_menuitem_widget(GtkWidget *parent, int index, UiMenuItemI *item, UiObject *obj) {
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108 UiMenuItem *i = (UiMenuItem*)item;
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109
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110 //GtkWidget *widget = gtk_menu_item_new_with_label(i->title);
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111 GtkWidget *widget = gtk_menu_item_new_with_mnemonic(i->label);
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112
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113 if(i->callback != NULL) {
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114 UiEventData *event = malloc(sizeof(UiEventData));
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115 event->obj = obj;
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116 event->userdata = i->userdata;
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117 event->callback = i->callback;
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118 event->value = 0;
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119 event->customdata = NULL;
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120
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121 g_signal_connect(
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122 widget,
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123 "activate",
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124 G_CALLBACK(ui_menu_event_wrapper),
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125 event);
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126 g_signal_connect(
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127 widget,
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128 "destroy",
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129 G_CALLBACK(ui_destroy_userdata),
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130 event);
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131 }
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132
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133 gtk_menu_shell_append(GTK_MENU_SHELL(parent), widget);
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134
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135 if(i->groups) {
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136 CxList *groups = cxArrayListCreateSimple(sizeof(int), i->ngroups);
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137 cxListAddArray(groups, i->groups, i->ngroups);
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138 uic_add_group_widget(obj->ctx, widget, (ui_enablefunc)ui_set_enabled, groups);
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139 cxListDestroy(groups);
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140 }
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141 }
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142
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143 /*
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144 void add_menuitem_st_widget(
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145 GtkWidget *parent,
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146 int index,
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147 UiMenuItemI *item,
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148 UiObject *obj)
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149 {
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150 UiStMenuItem *i = (UiStMenuItem*)item;
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151
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152 GtkWidget *widget = gtk_image_menu_item_new_from_stock(i->stockid, obj->ctx->accel_group);
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153
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154 if(i->callback != NULL) {
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155 UiEventData *event = malloc(sizeof(UiEventData));
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156 event->obj = obj;
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157 event->userdata = i->userdata;
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158 event->callback = i->callback;
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159 event->value = 0;
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160
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161 g_signal_connect(
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162 widget,
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163 "activate",
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164 G_CALLBACK(ui_menu_event_wrapper),
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165 event);
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166 g_signal_connect(
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167 widget,
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168 "destroy",
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169 G_CALLBACK(ui_destroy_userdata),
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170 event);
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171 }
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172
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173 gtk_menu_shell_append(GTK_MENU_SHELL(parent), widget);
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174
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175 if(i->groups) {
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176 uic_add_group_widget(obj->ctx, widget, (ui_enablefunc)ui_set_enabled, i->groups);
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177 }
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178 }
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179 */
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180
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181 void add_menuseparator_widget(
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182 GtkWidget *parent,
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183 int index,
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184 UiMenuItemI *item,
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185 UiObject *obj)
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186 {
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187 gtk_menu_shell_append(
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188 GTK_MENU_SHELL(parent),
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189 gtk_separator_menu_item_new());
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190 }
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191
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192 void add_checkitem_widget(GtkWidget *p, int index, UiMenuItemI *item, UiObject *obj) {
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193 UiMenuCheckItem *ci = (UiMenuCheckItem*)item;
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194 GtkWidget *widget = gtk_check_menu_item_new_with_mnemonic(ci->label);
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195 gtk_menu_shell_append(GTK_MENU_SHELL(p), widget);
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196
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197 if(ci->callback) {
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198 UiEventData *event = malloc(sizeof(UiEventData));
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199 event->obj = obj;
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200 event->userdata = ci->userdata;
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201 event->callback = ci->callback;
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202 event->value = 0;
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203 event->customdata = NULL;
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204
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205 g_signal_connect(
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206 widget,
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207 "toggled",
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208 G_CALLBACK(ui_menu_event_toggled),
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209 event);
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210 g_signal_connect(
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211 widget,
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212 "destroy",
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213 G_CALLBACK(ui_destroy_userdata),
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214 event);
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215 }
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216 }
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217
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218 void add_radioitem_widget(GtkWidget *p, int index, UiMenuItemI *item, UiObject *obj) {
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219 // TODO
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220 }
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221
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222 /*
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223 void add_checkitemnv_widget(GtkWidget *p, int index, UiMenuItemI *item, UiObject *obj) {
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224 UiCheckItemNV *ci = (UiCheckItemNV*)item;
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225 GtkWidget *widget = gtk_check_menu_item_new_with_mnemonic(ci->label);
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226 gtk_menu_shell_append(GTK_MENU_SHELL(p), widget);
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227
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228 UiVar *var = uic_create_var(obj->ctx, ci->varname, UI_VAR_INTEGER);
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229 if(var) {
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230 UiInteger *value = var->value;
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231 value->obj = widget;
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232 value->get = ui_checkitem_get;
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233 value->set = ui_checkitem_set;
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234 value = 0;
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235 } else {
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236 // TODO: error
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237 }
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238 }
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239 */
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240
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241 void add_menuitem_list_widget(GtkWidget *p, int index, UiMenuItemI *item, UiObject *obj) {
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242 UiMenuItemList *il = (UiMenuItemList*)item;
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243 const CxAllocator *a = obj->ctx->allocator;
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244
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245 UiActiveMenuItemList *ls = cxMalloc(
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246 a,
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247 sizeof(UiActiveMenuItemList));
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248
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249 ls->object = obj;
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250 ls->menu = GTK_MENU_SHELL(p);
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251 ls->index = index;
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252 ls->oldcount = 0;
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253 ls->getvalue = il->getvalue;
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254
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255 UiVar* var = uic_create_var(ui_global_context(), il->varname, UI_VAR_LIST);
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256 ls->list = var->value;
255
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257
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258 ls->callback = il->callback;
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259 ls->userdata = il->userdata;
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260
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261 ls->list->observers = ui_add_observer(
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262 ls->list->observers,
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263 (ui_callback)ui_update_menuitem_list,
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264 ls);
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265
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266 ui_update_menuitem_list(NULL, ls);
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267 }
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268
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269
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270 void ui_update_menuitem_list(UiEvent *event, UiActiveMenuItemList *list) {
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271 // remove old items
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272 if(list->oldcount > 0) {
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273 int i = 0;
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274 GList *mi = gtk_container_get_children(GTK_CONTAINER(list->menu));
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275 while(mi) {
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276 if(i >= list->index && i < list->index + list->oldcount) {
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277 //gtk_container_remove(GTK_CONTAINER(list->menu), mi->data);
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278 gtk_widget_destroy(mi->data);
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279 }
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280 mi = mi->next;
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281 i++;
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282 }
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283 }
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284
286
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285 void* elm = ui_list_first(list->list);
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286 if(elm) {
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287 GtkWidget *widget = gtk_separator_menu_item_new();
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288 gtk_menu_shell_insert(list->menu, widget, list->index);
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289 gtk_widget_show(widget);
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290 }
286
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291
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292 ui_getvaluefunc getvalue = list->getvalue;
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293 int i = 1;
286
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294 while(elm) {
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295 char *label = (char*) (getvalue ? getvalue(elm, 0) : elm);
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296
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297 GtkWidget *widget = gtk_menu_item_new_with_label(label);
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298 gtk_menu_shell_insert(list->menu, widget, list->index + i);
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299 gtk_widget_show(widget);
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300
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301 if(list->callback) {
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302 UiEventData *event = malloc(sizeof(UiEventData));
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303 event->obj = list->object;
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304 event->userdata = list->userdata;
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305 event->callback = list->callback;
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306 event->value = i - 1;
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307 event->customdata = elm;
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308
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309 g_signal_connect(
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310 widget,
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311 "activate",
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312 G_CALLBACK(ui_menu_event_wrapper),
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313 event);
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314 g_signal_connect(
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315 widget,
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316 "destroy",
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317 G_CALLBACK(ui_destroy_userdata),
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318 event);
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319 }
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320
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321 elm = ui_list_next(list->list);
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322 i++;
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323 }
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324
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325 list->oldcount = i;
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326 }
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327
0
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328 void ui_menu_event_wrapper(GtkMenuItem *item, UiEventData *event) {
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329 UiEvent evt;
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330 evt.obj = event->obj;
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331 evt.window = event->obj->window;
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332 evt.document = event->obj->ctx->document;
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333 evt.eventdata = event->customdata;
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334 evt.intval = event->value;
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335 event->callback(&evt, event->userdata);
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336 }
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337
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338 void ui_menu_event_toggled(GtkCheckMenuItem *ci, UiEventData *event) {
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339 UiEvent evt;
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340 evt.obj = event->obj;
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341 evt.window = event->obj->window;
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342 evt.document = event->obj->ctx->document;
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343 evt.eventdata = NULL;
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344 evt.intval = gtk_check_menu_item_get_active(ci);
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345 event->callback(&evt, event->userdata);
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346 }
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347
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348 int64_t ui_checkitem_get(UiInteger *i) {
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349 int state = gtk_check_menu_item_get_active(i->obj);
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350 i->value = state;
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351 return state;
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352 }
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353
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354 void ui_checkitem_set(UiInteger *i, int64_t value) {
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355 i->value = value;
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356 gtk_check_menu_item_set_active(i->obj, value);
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357 }
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358
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359
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360 /*
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361 * widget menu functions
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362 */
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363
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364 static gboolean ui_button_press_event(GtkWidget *widget, GdkEvent *event, GtkMenu *menu) {
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365 if(event->type == GDK_BUTTON_PRESS) {
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366 GdkEventButton *e = (GdkEventButton*)event;
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367 if(e->button == 3) {
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368 gtk_widget_show_all(GTK_WIDGET(menu));
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369 ui_contextmenu_popup(menu);
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370 return TRUE;
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371 }
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372 }
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373 return FALSE;
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374 }
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375
389
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376 void ui_widget_set_contextmenu(GtkWidget *widget, GtkMenu *menu) {
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377 g_signal_connect(widget, "button-press-event", (GCallback) ui_button_press_event, menu);
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378 }
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379
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380 void ui_contextmenu_popup(UIMENU menu) {
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381 #if GTK_MAJOR_VERSION >= 3 && GTK_MINOR_VERSION >= 16
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382 gtk_menu_popup_at_pointer(menu, NULL);
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383 #else
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384 gtk_menu_popup(menu, NULL, NULL, 0, 0, 0, gtk_get_current_event_time());
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385 #endif
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386 }
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387
311
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388 #endif /* GTK_MAJOR_VERSION <= 3 */
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389
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390
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391
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392 #if GTK_MAJOR_VERSION >= 4
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393
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394
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395
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396 static ui_gmenu_add_f createMenuItem[] = {
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397 /* UI_MENU */ ui_gmenu_add_menu,
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398 /* UI_MENU_ITEM */ ui_gmenu_add_menuitem,
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399 /* UI_MENU_CHECK_ITEM */ ui_gmenu_add_checkitem,
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400 /* UI_MENU_RADIO_ITEM */ ui_gmenu_add_radioitem,
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401 /* UI_MENU_ITEM_LIST */ ui_gmenu_add_menuitem_list,
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402 /* UI_MENU_CHECKITEM_LIST */ ui_gmenu_add_menuitem_list,
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403 /* UI_MENU_RADIOITEM_LIST */ ui_gmenu_add_menuitem_list,
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404 /* UI_MENU_SEPARATOR */ ui_gmenu_add_menuseparator
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405 };
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406
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407 void ui_gmenu_add_menu_items(GMenu *parent, int i, UiMenu *menu, UiObject *obj) {
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408 UiMenuItemI *it = menu->items_begin;
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409 int index = 0;
322
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410 int index_section = 0;
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411 GMenu *section = NULL;
311
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412 while(it) {
322
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413 if(it->type == UI_MENU_SEPARATOR) {
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414 section = g_menu_new();
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415 g_menu_append_section(parent, NULL, G_MENU_MODEL(section));
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416 index++;
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417 index_section = 0;
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418 } else {
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419 if(section) {
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420 createMenuItem[it->type](section, index_section++, it, obj);
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421 } else {
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422 createMenuItem[it->type](parent, index++, it, obj);
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423 }
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424 }
311
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425 it = it->next;
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426 }
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427 }
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428
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429 void ui_gmenu_add_menu(GMenu *parent, int index, UiMenuItemI *item, UiObject *obj) {
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430 UiMenu *mi = (UiMenu*)item;
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431 GMenu *menu = g_menu_new();
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432 ui_gmenu_add_menu_items(menu, 0, mi, obj);
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433 g_menu_append_submenu(parent, mi->label, G_MENU_MODEL(menu));
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434 }
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435
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436 void ui_gmenu_add_menuitem(GMenu *parent, int index, UiMenuItemI *item, UiObject *obj) {
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diff changeset
437 UiMenuItem *i = (UiMenuItem*)item;
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438
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439 GSimpleAction *action = g_simple_action_new(item->id, NULL);
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440 g_action_map_add_action(obj->ctx->action_map, G_ACTION(action));
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441
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442 if(i->callback != NULL) {
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443 UiEventData *event = malloc(sizeof(UiEventData));
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444 event->obj = obj;
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445 event->userdata = i->userdata;
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446 event->callback = i->callback;
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447 event->value = 0;
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448 event->customdata = NULL;
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449
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450 g_signal_connect(
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451 action,
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452 "activate",
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453 G_CALLBACK(ui_activate_event_wrapper),
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454 event);
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455 g_signal_connect(
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456 obj->widget,
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457 "destroy",
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458 G_CALLBACK(ui_destroy_userdata),
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diff changeset
459 event);
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460 }
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461
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462 char action_name[32];
322
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463 snprintf(action_name, 32, "win.%s", item->id);
311
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464 g_menu_append(parent, i->label, action_name);
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465 }
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466
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467 void ui_gmenu_add_menuseparator(GMenu *p, int index, UiMenuItemI *item, UiObject *obj) {
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468
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469 }
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470
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471 void ui_gmenu_add_checkitem(GMenu *p, int index, UiMenuItemI *item, UiObject *obj) {
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472 UiMenuCheckItem *checkitem = (UiMenuCheckItem*)item;
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473
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474 // TODO
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475 }
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476
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477 void ui_gmenu_add_radioitem(GMenu *p, int index, UiMenuItemI *item, UiObject *obj) {
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478
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479 }
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480
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481 void ui_gmenu_add_menuitem_list(GMenu *p, int index, UiMenuItemI *item, UiObject *obj) {
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diff changeset
482 UiMenuItemList *il = (UiMenuItemList*)item;
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483
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diff changeset
484 const CxAllocator *a = obj->ctx->allocator;
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485
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486 UiActiveGMenuItemList *ls = cxMalloc(
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487 a,
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488 sizeof(UiActiveGMenuItemList));
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489
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490 ls->object = obj;
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491 ls->menu = p;
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492 ls->index = index;
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493 ls->oldcount = 0;
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494 ls->getvalue = il->getvalue;
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495
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496 UiVar* var = uic_create_var(ui_global_context(), il->varname, UI_VAR_LIST);
312
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497 ls->var = var;
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498 UiList *list = var->value;
311
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499
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500 ls->callback = il->callback;
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501 ls->userdata = il->userdata;
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502
312
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503 list->observers = ui_add_observer(
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504 list->observers,
311
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diff changeset
505 (ui_callback)ui_update_gmenu_item_list,
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506 ls);
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507
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diff changeset
508 GSimpleAction *action = g_simple_action_new(item->id, g_variant_type_new("i"));
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509 g_action_map_add_action(obj->ctx->action_map, G_ACTION(action));
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diff changeset
510 snprintf(ls->action, 32, "win.%s", item->id);
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diff changeset
511
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diff changeset
512
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diff changeset
513 UiEventData *event = malloc(sizeof(UiEventData));
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514 event->obj = obj;
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515 event->userdata = il->userdata;
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516 event->callback = il->callback;
312
3f2b3d15668b fix treeview icons (GTK)
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diff changeset
517 event->customdata = var;
311
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diff changeset
518 event->value = 0;
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519
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520 g_signal_connect(
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521 action,
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522 "activate",
312
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523 G_CALLBACK(ui_menu_list_item_activate_event_wrapper),
311
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diff changeset
524 event);
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525 g_signal_connect(
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526 obj->widget,
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527 "destroy",
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528 G_CALLBACK(ui_destroy_userdata),
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diff changeset
529 event);
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530
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diff changeset
531 ui_update_gmenu_item_list(NULL, ls);
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532 }
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533
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diff changeset
534 void ui_activate_event_wrapper(GSimpleAction* self, GVariant* parameter, UiEventData *event) {
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diff changeset
535 int intval = event->value;
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diff changeset
536 if(parameter && g_variant_is_of_type(parameter, G_VARIANT_TYPE_INT32)) {
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diff changeset
537 intval = g_variant_get_int32(parameter);
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538 }
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539
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diff changeset
540 UiEvent evt;
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541 evt.obj = event->obj;
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diff changeset
542 evt.window = event->obj->window;
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diff changeset
543 evt.document = event->obj->ctx->document;
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diff changeset
544 evt.eventdata = event->customdata;
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diff changeset
545 evt.intval = intval;
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diff changeset
546 event->callback(&evt, event->userdata);
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547 }
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diff changeset
548
312
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diff changeset
549 void ui_menu_list_item_activate_event_wrapper(GSimpleAction* self, GVariant* parameter, UiEventData *event) {
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550 int index = g_variant_get_int32(parameter);
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551 UiVar *var = event->customdata;
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552 UiList *list = var->value;
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553
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554 UiEvent evt;
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555 evt.obj = event->obj;
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556 evt.window = event->obj->window;
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557 evt.document = event->obj->ctx->document;
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diff changeset
558 evt.eventdata = ui_list_get(list, index);
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559 evt.intval = index;
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560 event->callback(&evt, event->userdata);
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561
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562 }
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563
311
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diff changeset
564 void ui_update_gmenu_item_list(UiEvent *event, UiActiveGMenuItemList *list) {
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diff changeset
565 // remove old items
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diff changeset
566 for(int i=0;i<list->oldcount;i++) {
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567 g_menu_remove(list->menu, list->index);
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568 }
312
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569 UiList *ls = list->var->value;
311
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diff changeset
570
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diff changeset
571 // add list items
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diff changeset
572 ui_getvaluefunc getvalue = list->getvalue;
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diff changeset
573 int i = 0;
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574 void* elm = ui_list_first(ls);
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575 while(elm) {
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576 char *label = (char*) (getvalue ? getvalue(elm, 0) : elm);
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577
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578 GMenuItem *item = g_menu_item_new(label, NULL);
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579 GVariant *v = g_variant_new("i", i);
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580 g_menu_item_set_action_and_target_value(item, list->action, v);
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581 g_menu_insert_item(list->menu, list->index+i, item);
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582
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583 elm = ui_list_next(ls);
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584 i++;
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585 }
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586
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587 list->oldcount = i;
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588 }
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589
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590
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591 /* --------------------- context menu / menubuilder --------------------- */
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592
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593 GtkPopoverMenu* ui_create_menu(UiMenuBuilder *builder, UiObject *obj) {
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594 GMenu *menu = g_menu_new();
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595 ui_gmenu_add_menu_items(menu, 0, builder->menus_begin, obj);
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596 GtkWidget *contextmenu = gtk_popover_menu_new_from_model(G_MENU_MODEL(menu));
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597 gtk_popover_set_has_arrow(GTK_POPOVER(contextmenu), FALSE);
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598 gtk_widget_set_halign(contextmenu, GTK_ALIGN_START);
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599 return GTK_POPOVER_MENU(contextmenu);
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600 }
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601
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602 static void gesture_button_press(GtkGestureClick *gesture, gint n_press, gdouble x, gdouble y, gpointer user_data) {
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603 gtk_popover_set_pointing_to (GTK_POPOVER (user_data), &(GdkRectangle){ x, y, 0, 0 });
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604 gtk_popover_popup(GTK_POPOVER(user_data));
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605 }
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606
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607 static void remove_popover(GtkWidget *object, GtkPopoverMenu *menu) {
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608 gtk_widget_unparent(GTK_WIDGET(menu));
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609 }
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610
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611 void ui_widget_set_contextmenu(GtkWidget *widget, GtkPopoverMenu *menu) {
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612 GtkGesture *gesture = gtk_gesture_click_new();
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613 gtk_gesture_single_set_button(GTK_GESTURE_SINGLE(gesture), 3);
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614 gtk_widget_add_controller(widget, GTK_EVENT_CONTROLLER(gesture));
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615 g_signal_connect(gesture, "pressed", G_CALLBACK(gesture_button_press), menu);
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616 gtk_widget_set_parent(GTK_WIDGET(menu), widget);
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617 g_signal_connect(
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618 widget,
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619 "destroy",
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620 G_CALLBACK(remove_popover),
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621 menu);
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622 }
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623
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624 #endif

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