ui/gtk/button.c

Sun, 29 Sep 2024 11:29:37 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sun, 29 Sep 2024 11:29:37 +0200
branch
newapi
changeset 311
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parent 308
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child 313
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permissions
-rw-r--r--

implement GTK4 gmenu item and item list

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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
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32 #include "button.h"
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33 #include "container.h"
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34 #include <cx/allocator.h>
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35 #include "../common/context.h"
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36 #include "../common/object.h"
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37
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38 void ui_button_set_icon_name(GtkWidget *button, const char *icon) {
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39 if(!icon) {
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40 return;
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41 }
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42
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43 #ifdef UI_GTK4
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44 gtk_button_set_icon_name(GTK_BUTTON(button), icon);
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45 #else
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46 #if GTK_CHECK_VERSION(2, 6, 0)
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47 GtkWidget *image = gtk_image_new_from_icon_name(icon, GTK_ICON_SIZE_BUTTON);
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48 if(image) {
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49 gtk_button_set_image(GTK_BUTTON(button), image);
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50 }
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51 #else
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52 // TODO
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53 #endif
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54 #endif
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55 }
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56
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57 GtkWidget* ui_create_button(
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58 UiObject *obj,
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59 const char *label,
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60 const char *icon,
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61 ui_callback onclick,
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62 void *userdata)
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63 {
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64 GtkWidget *button = gtk_button_new_with_label(label);
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65 ui_button_set_icon_name(button, icon);
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66
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67 if(onclick) {
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68 UiEventData *event = malloc(sizeof(UiEventData));
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69 event->obj = obj;
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70 event->userdata = userdata;
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71 event->callback = onclick;
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72 event->value = 0;
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73 event->customdata = NULL;
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75 g_signal_connect(
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76 button,
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77 "clicked",
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78 G_CALLBACK(ui_button_clicked),
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79 event);
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80 g_signal_connect(
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81 button,
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82 "destroy",
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83 G_CALLBACK(ui_destroy_userdata),
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84 event);
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85 }
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86
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87 return button;
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88 }
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89
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90 UIWIDGET ui_button_create(UiObject *obj, UiButtonArgs args) {
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91 UiObject* current = uic_current_obj(obj);
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92 GtkWidget *button = ui_create_button(obj, args.label, args.icon, args.onclick, args.onclickdata);
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93 UI_APPLY_LAYOUT1(current, args);
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94 current->container->add(current->container, button, FALSE);
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95 return button;
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96 }
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99 void ui_button_clicked(GtkWidget *widget, UiEventData *event) {
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100 UiEvent e;
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101 e.obj = event->obj;
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102 e.window = event->obj->window;
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103 e.document = event->obj->ctx->document;
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104 e.eventdata = NULL;
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105 e.intval = event->value;
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106 event->callback(&e, event->userdata);
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107 }
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108
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109 int64_t ui_toggle_button_get(UiInteger *integer) {
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110 GtkToggleButton *button = integer->obj;
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111 integer->value = (int)gtk_toggle_button_get_active(button);
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112 return integer->value;
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113 }
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114
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115 void ui_toggle_button_set(UiInteger *integer, int64_t value) {
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116 GtkToggleButton *button = integer->obj;
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117 integer->value = value;
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118 gtk_toggle_button_set_active(button, value != 0 ? TRUE : FALSE);
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119 }
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120
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121 void ui_toggled_obs(void *widget, UiVarEventData *event) {
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122 UiInteger *i = event->var->value;
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123 UiEvent e;
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124 e.obj = event->obj;
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125 e.window = event->obj->window;
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126 e.document = event->obj->ctx->document;
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127 e.eventdata = event->var->value;
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128 e.intval = i->get(i);
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129
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130 ui_notify_evt(i->observers, &e);
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131 }
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132
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133 static void ui_toggled_callback(GtkToggleButton *widget, UiEventData *event) {
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134 UiEvent e;
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135 e.obj = event->obj;
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136 e.window = event->obj->window;
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137 e.document = event->obj->ctx->document;
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138 e.eventdata = NULL;
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139 e.intval = gtk_toggle_button_get_active(widget);
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140 event->callback(&e, event->userdata);
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141 }
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142
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143 void ui_setup_togglebutton(
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144 UiObject *obj,
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145 GtkWidget *togglebutton,
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146 const char *label,
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147 const char *icon,
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148 const char *varname,
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149 UiInteger *value,
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150 ui_callback onchange,
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151 void *onchangedata)
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152 {
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153 if(label) {
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154 gtk_button_set_label(GTK_BUTTON(togglebutton), label);
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155 }
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156 ui_button_set_icon_name(togglebutton, icon);
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157
308
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158 ui_bind_togglebutton(
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159 obj,
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160 togglebutton,
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161 ui_toggle_button_get,
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162 ui_toggle_button_set,
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163 varname,
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164 value,
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165 (ui_toggled_func)ui_toggled_callback,
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166 onchange,
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167 onchangedata);
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168 }
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169
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170 void ui_bind_togglebutton(
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171 UiObject *obj,
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172 GtkWidget *widget,
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173 int64_t (*getfunc)(UiInteger*),
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174 void (*setfunc)(UiInteger*, int64_t),
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175 const char *varname,
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176 UiInteger *value,
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177 void (*toggled_callback)(void*, void*),
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178 ui_callback onchange,
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179 void *onchangedata)
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180 {
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181 UiObject* current = uic_current_obj(obj);
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182 UiVar* var = uic_widget_var(obj->ctx, current->ctx, value, varname, UI_VAR_INTEGER);
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183 if (var) {
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184 UiInteger* value = (UiInteger*)var->value;
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185 value->obj = widget;
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186 value->get = getfunc;
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187 value->set = setfunc;
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188
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189 UiVarEventData *event = malloc(sizeof(UiVarEventData));
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190 event->obj = obj;
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191 event->var = var;
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192 event->observers = NULL;
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193 event->callback = NULL;
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194 event->userdata = NULL;
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195
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196 g_signal_connect(
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197 widget,
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198 "toggled",
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199 G_CALLBACK(ui_toggled_obs),
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200 event);
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201 g_signal_connect(
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202 widget,
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203 "destroy",
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204 G_CALLBACK(ui_destroy_vardata),
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205 event);
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206 }
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207
308
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208 if(onchange) {
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209 UiEventData *event = malloc(sizeof(UiEventData));
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210 event->obj = obj;
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211 event->userdata = onchangedata;
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212 event->callback = onchange;
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213 event->value = 0;
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214 event->customdata = NULL;
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215
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216 g_signal_connect(
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217 widget,
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218 "toggled",
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219 G_CALLBACK(toggled_callback),
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220 event);
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221 g_signal_connect(
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222 widget,
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223 "destroy",
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224 G_CALLBACK(ui_destroy_userdata),
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225 event);
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226 }
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227 }
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228
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229 static UIWIDGET togglebutton_create(UiObject *obj, GtkWidget *widget, UiToggleArgs args) {
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230 UiObject* current = uic_current_obj(obj);
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231
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232 ui_setup_togglebutton(current, widget, args.label, args.icon, args.varname, args.value, args.onchange, args.onchangedata);
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233
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234 UI_APPLY_LAYOUT1(current, args);
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235 current->container->add(current->container, widget, FALSE);
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236
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237 return widget;
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238 }
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239
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240 UIWIDGET ui_togglebutton_create(UiObject* obj, UiToggleArgs args) {
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241 return togglebutton_create(obj, gtk_toggle_button_new(), args);
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242 }
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243
301
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244 #if GTK_MAJOR_VERSION >= 4
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245
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246 int64_t ui_check_button_get(UiInteger *integer) {
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247 GtkCheckButton *button = integer->obj;
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248 integer->value = (int)gtk_check_button_get_active(button);
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249 return integer->value;
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250 }
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251
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252 void ui_check_button_set(UiInteger *integer, int64_t value) {
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253 GtkCheckButton *button = integer->obj;
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254 integer->value = value;
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255 gtk_check_button_set_active(button, value != 0 ? TRUE : FALSE);
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256 }
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257
308
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258 static void ui_checkbox_callback(GtkCheckButton *widget, UiEventData *event) {
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259 UiEvent e;
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260 e.obj = event->obj;
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261 e.window = event->obj->window;
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262 e.document = event->obj->ctx->document;
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263 e.eventdata = NULL;
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264 e.intval = gtk_check_button_get_active(widget);
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265 event->callback(&e, event->userdata);
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266 }
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267
301
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268 UIWIDGET ui_checkbox_create(UiObject* obj, UiToggleArgs args) {
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269 UiObject* current = uic_current_obj(obj);
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270
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271 GtkWidget *widget = gtk_check_button_new_with_label(args.label);
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272 ui_bind_togglebutton(
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273 obj,
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274 widget,
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275 ui_check_button_get,
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276 ui_check_button_set,
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277 args.varname,
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278 args.value,
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279 (ui_toggled_func)ui_checkbox_callback,
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280 args.onchange,
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281 args.onchangedata);
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282
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283 UI_APPLY_LAYOUT1(current, args);
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284 current->container->add(current->container, widget, FALSE);
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285
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286 return widget;
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287 }
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288
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289 #else
257
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290 UIWIDGET ui_checkbox_create(UiObject* obj, UiToggleArgs args) {
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291 return togglebutton_create(obj, gtk_check_button_new(), args);
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292 }
301
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293 #endif
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294
257
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295 UIWIDGET ui_switch_create(UiObject* obj, UiToggleArgs args) {
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296 #ifdef UI_GTK3
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297 return NULL; // TODO
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298 #else
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299 return ui_checkbox_create(obj, args);
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300 #endif
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301 }
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302
298
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303 #if GTK_MAJOR_VERSION >= 4
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304 #define RADIOBUTTON_NEW(group, label) gtk_check_button_new_with_label(label)
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305 #define RADIOBUTTON_SET_GROUP(button, group)
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306 #define RADIOBUTTON_GET_GROUP(button) GTK_CHECK_BUTTON(button)
308
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307 #define RADIOBUTTON_GET_ACTIVE(button) gtk_check_button_get_active(GTK_CHECK_BUTTON(button))
298
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308 #else
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309 #define RADIOBUTTON_NEW(group, label) gtk_radio_button_new_with_label(group, label)
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310 #define RADIOBUTTON_SET_GROUP(button, group) /* noop */
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311 #define RADIOBUTTON_GET_GROUP(button) gtk_radio_button_get_group(GTK_RADIO_BUTTON(button))
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312 #define RADIOBUTTON_GET_ACTIVE(button) gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))
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313 #endif
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314
308
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315 static void radiobutton_toggled(void *widget, UiEventData *event) {
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316 UiEvent e;
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317 e.obj = event->obj;
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318 e.window = event->obj->window;
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319 e.document = event->obj->ctx->document;
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320 e.eventdata = NULL;
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321 e.intval = RADIOBUTTON_GET_ACTIVE(widget);
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322 event->callback(&e, event->userdata);
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323 }
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324
258
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325 UIWIDGET ui_radiobutton_create(UiObject *obj, UiToggleArgs args) {
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326 UiObject* current = uic_current_obj(obj);
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327
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328 GSList *rg = NULL;
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329 UiInteger *rgroup;
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330
308
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331 UiVar* var = uic_widget_var(obj->ctx, current->ctx, args.value, args.varname, UI_VAR_INTEGER);
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332
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333 UiBool first = FALSE;
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334 if(var) {
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335 rgroup = var->value;
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336 rg = rgroup->obj;
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337 if(!rg) {
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338 first = TRUE;
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339 }
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340 }
108
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341
301
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342 GtkWidget *rbutton = RADIOBUTTON_NEW(rg, args.label);
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343 if(rgroup) {
301
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344 #if GTK_MAJOR_VERSION >= 4
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345 if(rg) {
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346 gtk_check_button_set_group(GTK_CHECK_BUTTON(rbutton), rg->data);
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347 }
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348 rg = g_slist_prepend(rg, rbutton);
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349 #else
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350 gtk_radio_button_set_group(GTK_RADIO_BUTTON(rbutton), rg);
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351 rg = gtk_radio_button_get_group(GTK_RADIO_BUTTON(rbutton));
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352 #endif
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353
108
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354 rgroup->obj = rg;
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355 rgroup->get = ui_radiobutton_get;
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356 rgroup->set = ui_radiobutton_set;
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357
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358 ui_radiobutton_set(rgroup, rgroup->value);
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359
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360 UiVarEventData *event = malloc(sizeof(UiVarEventData));
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361 event->obj = obj;
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362 event->var = var;
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363 event->observers = NULL;
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364 event->callback = NULL;
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365 event->userdata = NULL;
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366
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367 g_signal_connect(
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368 rbutton,
301
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369 "toggled",
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370 G_CALLBACK(ui_radio_obs),
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371 event);
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372 if(first) {
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373 g_signal_connect(
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374 rbutton,
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375 "destroy",
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376 G_CALLBACK(ui_destroy_vardata),
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377 event);
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378 }
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379 }
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380
308
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381 if(args.onchange) {
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382 UiEventData *event = malloc(sizeof(UiEventData));
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383 event->obj = obj;
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384 event->userdata = args.onchangedata;
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385 event->callback = args.onchange;
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386 event->value = 0;
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387 event->customdata = NULL;
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388
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389 g_signal_connect(
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390 rbutton,
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391 "toggled",
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392 G_CALLBACK(radiobutton_toggled),
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393 event);
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394 g_signal_connect(
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395 rbutton,
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396 "destroy",
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397 G_CALLBACK(ui_destroy_userdata),
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398 event);
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399 }
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400
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401 UiContainer *ct = uic_get_current_container(obj);
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402 ct->add(ct, rbutton, FALSE);
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403
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404 return rbutton;
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405 }
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406
298
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407 void ui_radio_obs(GtkToggleButton *widget, UiVarEventData *event) {
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408 UiInteger *i = event->var->value;
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409
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410 UiEvent e;
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411 e.obj = event->obj;
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412 e.window = event->obj->window;
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413 e.document = event->obj->ctx->document;
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414 e.eventdata = NULL;
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415 e.intval = i->get(i);
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416
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417 ui_notify_evt(i->observers, &e);
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418 }
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419
301
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420 #if GTK_MAJOR_VERSION >= 4
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diff changeset
421 int64_t ui_radiobutton_get(UiInteger *value) {
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422 int selection = 0;
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423 GSList *ls = value->obj;
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424 int i = 0;
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425 guint len = g_slist_length(ls);
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426 while(ls) {
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427 if(gtk_check_button_get_active(GTK_CHECK_BUTTON(ls->data))) {
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428 selection = len - i - 1;
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429 break;
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430 }
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431 ls = ls->next;
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432 i++;
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433 }
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434
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435 value->value = selection;
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436 return selection;
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437 }
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438
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439 void ui_radiobutton_set(UiInteger *value, int64_t i) {
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440 GSList *ls = value->obj;
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441 int s = g_slist_length(ls) - 1 - i;
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442 int j = 0;
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443 while(ls) {
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444 if(j == s) {
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445 gtk_check_button_set_active(GTK_CHECK_BUTTON(ls->data), TRUE);
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446 break;
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447 }
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448 ls = ls->next;
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449 j++;
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450 }
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451
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452 value->value = i;
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453 }
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454 #else
144
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455 int64_t ui_radiobutton_get(UiInteger *value) {
108
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456 int selection = 0;
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457 GSList *ls = value->obj;
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458 int i = 0;
142
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459 guint len = g_slist_length(ls);
108
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460 while(ls) {
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461 if(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(ls->data))) {
142
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462 selection = len - i - 1;
108
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463 break;
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464 }
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465 ls = ls->next;
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466 i++;
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467 }
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468
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469 value->value = selection;
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470 return selection;
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471 }
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472
144
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473 void ui_radiobutton_set(UiInteger *value, int64_t i) {
108
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474 GSList *ls = value->obj;
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475 int s = g_slist_length(ls) - 1 - i;
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476 int j = 0;
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477 while(ls) {
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478 if(j == s) {
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479 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(ls->data), TRUE);
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480 break;
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481 }
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482 ls = ls->next;
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483 j++;
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parents: 107
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484 }
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parents: 107
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485
142
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486 value->value = i;
108
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487 }
301
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488 #endif

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