ui/winui/button.cpp

Sun, 16 Jun 2024 11:36:27 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sun, 16 Jun 2024 11:36:27 +0200
changeset 42
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parent 3
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permissions
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update toolkit

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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 2023 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 "pch.h"
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30
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31 #include "button.h"
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32
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33 #include "util.h"
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34 #include "container.h"
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35 #include "icons.h"
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36
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37 #include "../common/object.h"
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38 #include "../common/context.h"
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39
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40 using namespace winrt;
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41 using namespace Microsoft::UI::Xaml;
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42 using namespace Microsoft::UI::Xaml::Controls;
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43 using namespace Windows::UI::Xaml::Interop;
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44 using namespace winrt::Windows::Foundation;
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45 using namespace winrt::Microsoft::UI::Xaml::Controls::Primitives;
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46
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47
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48
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49 static void set_button_label(ButtonBase button, const char* label, const char* stockid, const char *icon, UiLabelType type) {
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50 // TODO: stockid
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51
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52 if (type == UI_LABEL_ICON) {
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53 label = NULL;
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54 }
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55 else if (type == UI_LABEL_TEXT) {
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56 icon = NULL;
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57 }
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58
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59 if (label && icon) {
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60 StackPanel panel = StackPanel();
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61 panel.Orientation(Orientation::Horizontal);
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62 panel.Spacing(5);
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63
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64 panel.Children().Append(ui_get_icon(icon));
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65
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66 wchar_t* wlabel = str2wstr(label, nullptr);
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67 TextBlock label = TextBlock();
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68 label.Text(wlabel);
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69 panel.Children().Append(label);
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70 free(wlabel);
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71
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72 button.Content(panel);
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73 }
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74 else if (label) {
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75 wchar_t* wlabel = str2wstr(label, nullptr);
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76 button.Content(box_value(wlabel));
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77 free(wlabel);
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78 }
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79 else if (icon) {
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80 button.Content(ui_get_icon(icon));
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81 }
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82 }
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83
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84
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85 UIWIDGET ui_button_create(UiObject* obj, UiButtonArgs args) {
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86 UiObject* current = uic_current_obj(obj);
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87
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88 // create button with label
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89 Button button = Button();
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90 set_button_label(button, args.label, args.stockid, args.icon, args.labeltype);
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91
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92 // create toolkit wrapper object and register destructor
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93 UIElement elm = button;
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94 UiWidget* widget = new UiWidget(elm);
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95 ui_context_add_widget_destructor(current->ctx, widget);
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96
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97 // register callback
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98 if (args.onclick) {
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99 ui_callback cbfunc = args.onclick;
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100 void* cbdata = args.onclickdata;
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101 button.Click([cbfunc, cbdata, obj](IInspectable const& sender, RoutedEventArgs) {
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102 UiEvent evt;
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103 evt.obj = obj;
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104 evt.window = obj->window;
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105 evt.document = obj->ctx->document;
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106 evt.eventdata = nullptr;
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107 evt.intval = 0;
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108 cbfunc(&evt, cbdata);
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109 });
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110 }
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111
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112 // add button to current container
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113 UI_APPLY_LAYOUT1(current, args);
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114
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115 current->container->Add(button, false);
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116
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117 return widget;
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118 }
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119
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120
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121 void togglebutton_register_checked_observers(ToggleButton button, UiObject* obj, UiVar* var) {
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122 button.Checked([button, obj, var](IInspectable const& sender, RoutedEventArgs) {
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123 UiInteger* i = (UiInteger*)var->value;
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124 UiEvent evt = ui_create_int_event(obj, i->get(i));
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125 ui_notify_evt(i->observers, &evt);
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126 });
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127 }
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128
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129 void togglebutton_register_unchecked_observers(ToggleButton button, UiObject* obj, UiVar* var) {
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130 button.Unchecked([button, obj, var](IInspectable const& sender, RoutedEventArgs) {
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131 UiInteger* i = (UiInteger*)var->value;
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132 UiEvent evt = ui_create_int_event(obj, i->get(i));
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133 ui_notify_evt(i->observers, &evt);
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134 });
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135 }
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136
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137 void togglebutton_register_callback(ToggleButton button, UiObject *obj, UiToggleArgs& args) {
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138 ui_callback callback = args.onchange;
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139 void* cbdata = args.onchangedata;
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140 if (callback) {
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141 button.Checked([button, obj, callback, cbdata](IInspectable const& sender, RoutedEventArgs) {
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142 UiEvent evt = ui_create_int_event(obj, true);
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143 callback(&evt, cbdata);
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144 });
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145 button.Unchecked([button, obj, callback, cbdata](IInspectable const& sender, RoutedEventArgs) {
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146 UiEvent evt = ui_create_int_event(obj, false);
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147 callback(&evt, cbdata);
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148 });
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149 }
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150 }
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151
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152 // for some stupid reason the ToggleSwitch is not a ToggleButton and we need to write the same
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153 // code again, because although everything is basically the same, it is named differently
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154 static void switch_register_observers(ToggleSwitch button, UiObject* obj, UiVar* var) {
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155 button.Toggled([button, obj, var](IInspectable const& sender, RoutedEventArgs) {
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156 UiInteger* i = (UiInteger*)var->value;
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157 UiEvent evt = ui_create_int_event(obj, i->get(i));
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158 ui_notify_evt(i->observers, &evt);
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159 });
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160 }
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161
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162 static void switch_register_callback(ToggleSwitch button, UiObject* obj, UiToggleArgs& args) {
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163 ui_callback callback = args.onchange;
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164 void* cbdata = args.onchangedata;
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165 if (callback) {
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166 button.Toggled([button, obj, callback, cbdata](IInspectable const& sender, RoutedEventArgs) {
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167 UiEvent evt = ui_create_int_event(obj, button.IsOn());
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168 callback(&evt, cbdata);
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169 });
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170 }
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171 }
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172
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173
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174 static UIWIDGET create_togglebutton(UiObject *obj, ToggleButton button, UiToggleArgs args) {
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175 UiObject* current = uic_current_obj(obj);
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176
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177 // set label
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178 set_button_label(button, args.label, args.stockid, args.icon, args.labeltype);
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179 togglebutton_register_callback(button, obj, args);
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180
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181 // create toolkit wrapper object and register destructor
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182 UIElement elm = button;
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183 UiWidget* widget = new UiWidget(elm);
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184 ui_context_add_widget_destructor(current->ctx, widget);
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185
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186 // bind variable
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187 UiVar* var = uic_widget_var(obj->ctx, current->ctx, args.value, args.varname, UI_VAR_INTEGER);
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188 if (var) {
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189 UiInteger* value = (UiInteger*)var->value;
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190 value->obj = widget;
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191 value->get = ui_toggle_button_get;
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192 value->set = ui_toggle_button_set;
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193
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194 // listener for notifying observers
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195 togglebutton_register_checked_observers(button, obj, var);
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196 togglebutton_register_unchecked_observers(button, obj, var);
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197 }
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198
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199 // add button to current container
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200 UI_APPLY_LAYOUT1(current, args);
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201
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202 current->container->Add(button, false);
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203
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204 return widget;
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205 }
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206
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207 UIWIDGET ui_togglebutton_create(UiObject* obj, UiToggleArgs args) {
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208 ToggleButton button = ToggleButton();
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209 return create_togglebutton(obj, button, args);
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210 }
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211
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212 UIWIDGET ui_checkbox_create(UiObject* obj, UiToggleArgs args) {
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213 CheckBox button = CheckBox();
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214 return create_togglebutton(obj, button, args);
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215 }
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216
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217 UIWIDGET ui_switch_create(UiObject* obj, UiToggleArgs args) {
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218 ToggleSwitch button = ToggleSwitch();
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219 if (args.label) {
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220 wchar_t* wlabel = str2wstr(args.label, nullptr);
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221 button.Header(box_value(wlabel));
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222 free(wlabel);
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223 }
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224 switch_register_callback(button, obj, args);
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225
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226 UiObject* current = uic_current_obj(obj);
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227
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228 // create toolkit wrapper object and register destructor
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229 UIElement elm = button;
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230 UiWidget* widget = new UiWidget(elm);
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231 ui_context_add_widget_destructor(current->ctx, widget);
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232
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233 // bind variable
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234 UiVar* var = nullptr;
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235 if (args.value) {
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236 var = uic_create_value_var(current->ctx, args.value);
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237 }
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238 else if (args.varname) {
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239 var = uic_create_var(obj->ctx, args.varname, UI_VAR_INTEGER);
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240 }
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241 if (var) {
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242 UiInteger* value = (UiInteger*)var->value;
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243 value->obj = widget;
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244 value->get = ui_toggle_button_get;
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245 value->set = ui_toggle_button_set;
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246
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247 // listener for notifying observers
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248 switch_register_observers(button, obj, var);
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249 }
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250
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251 // add button to current container
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252 UI_APPLY_LAYOUT1(current, args);
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253
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254 current->container->Add(button, false);
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255
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256 return widget;
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257 }
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258
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259 UIWIDGET ui_radiobutton_create(UiObject* obj, UiToggleArgs args) {
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260 RadioButton button = RadioButton();
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261
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262 UiObject* current = uic_current_obj(obj);
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263
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264 // set label
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265 set_button_label(button, args.label, args.stockid, args.icon, args.labeltype);
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266 togglebutton_register_callback(button, obj, args);
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267
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268 // create toolkit wrapper object and register destructor
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269 UIElement elm = button;
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270 UiWidget* widget = new UiWidget(elm);
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271 ui_context_add_widget_destructor(current->ctx, widget);
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272
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273 UiVar* var = nullptr;
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274 if (args.value) {
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275 var = uic_create_value_var(current->ctx, args.value);
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276 }
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277 else if (args.varname) {
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278 var = uic_create_var(obj->ctx, args.varname, UI_VAR_INTEGER);
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279 }
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280
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281 // bind radio button to the value
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282 if (var) {
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283 UiInteger* value = (UiInteger*)var->value;
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284
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285 // store a list of radio buttons in the value
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286 CxList* radioButtons = (CxList*) (value->obj ? value->obj : cxLinkedListCreate(current->ctx->allocator, NULL, CX_STORE_POINTERS));
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287 // get or create the group name
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288 static int groupCount = 0;
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289 winrt::hstring groupName;
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290 if (radioButtons->size == 0) {
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291 groupName = winrt::to_hstring(groupCount++);
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292 } else {
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293 UiWidget* firstButtonWidget = (UiWidget*)cxListAt(radioButtons, 0);
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294 RadioButton firstRadioButton = firstButtonWidget->uielement.as<RadioButton>();
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295 groupName = firstRadioButton.GroupName();
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296 }
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297
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298 // set the group name for the new radiobutton
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299 cxListAdd(radioButtons, widget);
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300 button.GroupName(groupName);
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301
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302 value->obj = radioButtons;
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303 value->get = ui_radio_button_get;
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304 value->set = ui_radio_button_set;
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305
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306 // listener for notifying observers (only checked, not unchecked)
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307 togglebutton_register_checked_observers(button, obj, var);
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308 }
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309
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310 // add button to current container
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311 UI_APPLY_LAYOUT1(current, args);
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312
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313 current->container->Add(button, false);
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314
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315 return widget;
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316 }
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317
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318
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319 int64_t ui_toggle_button_get(UiInteger* integer) {
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320 UiWidget* widget = (UiWidget*)integer->obj;
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321 ToggleButton toggleButton = widget->uielement.as<ToggleButton>();
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322 int val = toggleButton.IsChecked().GetBoolean();
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323 integer->value = val;
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324 return val;
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325 }
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326
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327 void ui_toggle_button_set(UiInteger* integer, int64_t value) {
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328 UiWidget* widget = (UiWidget*)integer->obj;
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329 ToggleButton toggleButton = widget->uielement.as<ToggleButton>();
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330 toggleButton.IsChecked((bool)value);
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331 integer->value = value;
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332 }
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333
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334 int64_t ui_switch_get(UiInteger * integer) {
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335 UiWidget* widget = (UiWidget*)integer->obj;
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336 ToggleSwitch toggleButton = widget->uielement.as<ToggleSwitch>();
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337 int val = toggleButton.IsOn();
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338 integer->value = val;
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339 return val;
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340 }
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341
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342 void ui_switch_set(UiInteger * integer, int64_t value) {
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343 UiWidget* widget = (UiWidget*)integer->obj;
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344 ToggleSwitch toggleButton = widget->uielement.as<ToggleSwitch>();
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345 toggleButton.IsOn((bool)value);
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346 integer->value = value;
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347 }
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348
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349 int64_t ui_radio_button_get(UiInteger * integer) {
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350 CxList* list = (CxList*)integer->obj;
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351 CxIterator i = cxListIterator(list);
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352 int selection = -1;
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353 cx_foreach(UiWidget*, widget, i) {
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354 ToggleButton button = widget->uielement.as<ToggleButton>();
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355 if (button.IsChecked().GetBoolean()) {
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356 selection = i.index;
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357 break;
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358 }
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359 }
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360 integer->value = selection;
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361 return selection;
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362 }
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363
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364 void ui_radio_button_set(UiInteger * integer, int64_t value) {
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365 CxList* list = (CxList*)integer->obj;
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366 UiWidget* widget = (UiWidget*)cxListAt(list, value);
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367 if (widget) {
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368 ToggleButton button = widget->uielement.as<ToggleButton>();
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369 button.IsChecked(true);
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370 integer->value = value;
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371 }
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372 }

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