ui/winui/list.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 0
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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 "list.h"
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32 #include "container.h"
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33 #include "util.h"
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34
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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
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39 using namespace winrt;
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40 using namespace Microsoft::UI::Xaml;
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41 using namespace Microsoft::UI::Xaml::Controls;
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42 using namespace Windows::UI::Xaml::Interop;
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43 using namespace winrt::Windows::Foundation;
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44 using namespace Microsoft::UI::Xaml::Markup;
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45 using namespace Microsoft::UI::Xaml::Media;
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46 using namespace winrt::Microsoft::UI::Xaml::Controls::Primitives;
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47
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48
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49 UIWIDGET ui_listview_create(UiObject* obj, UiListArgs args) {
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50 UiObject* current = uic_current_obj(obj);
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51
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52 // create listview and toolkit wrapper
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53 ListView listview = ListView();
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54 if (args.multiselection) {
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55 listview.SelectionMode(ListViewSelectionMode::Extended);
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56 }
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57
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58 bool clickEnabled = listview.IsItemClickEnabled();
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59 listview.IsItemClickEnabled(true);
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60
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61
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62 UIElement elm = listview;
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63 UiWidget* widget = new UiWidget(elm);
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64 widget->data1 = args.model;
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65 widget->data2 = args.getvalue;
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66 ui_context_add_widget_destructor(current->ctx, widget);
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67
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68 // bind var
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69 UiVar* var = uic_widget_var(obj->ctx, current->ctx, args.list, args.varname, UI_VAR_LIST);
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70 if (var) {
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71 UiList* list = (UiList*)var->value;
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72 list->update = ui_simple_list_update;
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73 list->obj = widget;
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74 ui_simple_list_update(list, 0);
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75 }
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76
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77 if (args.onselection) {
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78 ui_callback onselection = args.onselection;
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79 void* cbdata = args.onselectiondata;
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80 listview.SelectionChanged([onselection, cbdata, obj](IInspectable const& sender, RoutedEventArgs evtargs) {
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81 std::vector<int> selectedRows = ui_create_listview_selection(sender.as<ListView>());
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82
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83 UiListSelection selection;
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84 selection.rows = selectedRows.data();
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85 selection.count = selectedRows.size();
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86
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87 UiEvent evt;
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88 evt.obj = obj;
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89 evt.window = obj->window;
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90 evt.document = obj->ctx->document;
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91 evt.eventdata = &selection;
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92 evt.intval = 0;
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93 onselection(&evt, cbdata);
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94 });
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95 }
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96 if (args.onactivate) {
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97 ui_callback cb = args.onactivate;
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98 void* cbdata = args.onactivatedata;
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99 listview.ItemClick([cb, cbdata, obj](IInspectable const& sender, RoutedEventArgs evtargs) {
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100 std::vector<int> selectedRows = ui_create_listview_selection(sender.as<ListView>());
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101 UiListSelection selection;
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102 selection.rows = selectedRows.data();
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103 selection.count = selectedRows.size();
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104
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105 UiEvent evt;
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106 evt.obj = obj;
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107 evt.window = obj->window;
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108 evt.document = obj->ctx->document;
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109 evt.eventdata = &selection;
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110 evt.intval = 0;
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111 cb(&evt, cbdata);
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112 });
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113 }
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114
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115 // add listview to current container
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116 UI_APPLY_LAYOUT1(current, args);
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117
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118 current->container->Add(listview, false);
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119
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120 return widget;
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121 }
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122
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123
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124 UIWIDGET ui_combobox_create(UiObject* obj, UiListArgs args) {
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125 UiObject* current = uic_current_obj(obj);
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126
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127 // create listview and toolkit wrapper
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128 ComboBox combobox = ComboBox();
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129
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130 UIElement elm = combobox;
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131 UiWidget* widget = new UiWidget(elm);
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132 widget->data1 = args.model;
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133 widget->data2 = args.getvalue;
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134 ui_context_add_widget_destructor(current->ctx, widget);
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135
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136 // bind var
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137 UiVar* var = uic_widget_var(obj->ctx, current->ctx, args.list, args.varname, UI_VAR_LIST);
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138 if (var) {
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139 UiList* list = (UiList*)var->value;
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140 list->update = ui_simple_list_update;
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141 list->obj = widget;
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142 ui_simple_list_update(list, 0);
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143 }
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144
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145 if (args.onactivate) {
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146 ui_callback cb = args.onactivate;
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147 void* cbdata = args.onactivatedata;
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148 combobox.SelectionChanged([cb, cbdata, obj](IInspectable const& sender, RoutedEventArgs evtargs) {
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149 int selectedrow = sender.as<ComboBox>().SelectedIndex();
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150 UiListSelection selection;
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151 selection.count = 1;
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152 selection.rows = &selectedrow;
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153
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154 UiEvent evt;
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155 evt.obj = obj;
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156 evt.window = obj->window;
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157 evt.document = obj->ctx->document;
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158 evt.eventdata = &selection;
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159 evt.intval = selectedrow;
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160 cb(&evt, cbdata);
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161 });
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162 }
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163
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164 // add listview to current container
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165 UI_APPLY_LAYOUT1(current, args);
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166
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167 current->container->Add(combobox, false);
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168
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169 return widget;
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170 }
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171
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172 UIEXPORT UIWIDGET ui_breadcrumbbar_create(UiObject* obj, UiListArgs args) {
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173 UiObject* current = uic_current_obj(obj);
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174
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175 // create listview and toolkit wrapper
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176 BreadcrumbBar bcbar = BreadcrumbBar();
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177
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178 UIElement elm = bcbar;
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179 UiWidget* widget = new UiWidget(elm);
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180 widget->data1 = args.model;
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181 widget->data2 = args.getvalue;
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182 ui_context_add_widget_destructor(current->ctx, widget);
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183
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184 // bind var
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185 UiVar* var = uic_widget_var(obj->ctx, current->ctx, args.list, args.varname, UI_VAR_LIST);
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186 if (var) {
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187 UiList* list = (UiList*)var->value;
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188 list->update = ui_breadcrumbbar_update;
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189 list->obj = widget;
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190 ui_breadcrumbbar_update(list, 0);
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191 }
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192
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193 if (args.onactivate) {
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194 ui_callback cb = args.onactivate;
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195 void* cbdata = args.onactivatedata;
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196 bcbar.ItemClicked([cb, cbdata, obj](IInspectable const& sender, BreadcrumbBarItemClickedEventArgs evtargs) {
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197 UiEvent evt;
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198 evt.obj = obj;
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199 evt.window = obj->window;
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200 evt.document = obj->ctx->document;
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201 evt.eventdata = nullptr;
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202 evt.intval = evtargs.Index();
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203 cb(&evt, cbdata);
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204 });
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205 }
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206
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207 // add listview to current container
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208 UI_APPLY_LAYOUT1(current, args);
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209
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210 current->container->Add(bcbar, false);
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211
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212 return widget;
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213 }
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214
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215 static void* getstrvalue(void* elm, int ignore) {
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216 return elm;
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217 }
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218
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219 void ui_simple_list_update(UiList* list, int i) {
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220 UiWidget* widget = (UiWidget*)list->obj;
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221 UiModel* model = (UiModel*)widget->data1;
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222 ui_getvaluefunc getvalue = (ui_getvaluefunc)widget->data2;
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223 ItemsControl listview = widget->uielement.as<ItemsControl>();
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224 auto items = listview.Items();
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225
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226 // priority: getvalue, model.getvalue, getstrvalue (fallback)
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227 if (getvalue == nullptr) {
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228 if (model && model->getvalue) {
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229 getvalue = model->getvalue;
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230 } else {
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231 getvalue = getstrvalue;
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232 }
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233 }
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234
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235 // add list elements to listview.Items
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236 items.Clear();
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237 void* elm = list->first(list);
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238 while (elm) {
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239 char* value = (char*)getvalue(elm, 0);
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240 wchar_t* wstr = str2wstr(value, nullptr);
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241 items.Append(box_value(wstr));
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242 free(wstr);
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243
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244 elm = list->next(list);
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245 }
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246 }
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247
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248 extern "C" void ui_breadcrumbbar_update(UiList * list, int i) {
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249 UiWidget* widget = (UiWidget*)list->obj;
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250 UiModel* model = (UiModel*)widget->data1;
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251 ui_getvaluefunc getvalue = (ui_getvaluefunc)widget->data2;
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252
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253 // priority: getvalue, model.getvalue, getstrvalue (fallback)
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254 if (getvalue == nullptr) {
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255 if (model && model->getvalue) {
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256 getvalue = model->getvalue;
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257 }
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258 else {
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259 getvalue = getstrvalue;
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260 }
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261 }
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262
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263 BreadcrumbBar bar = widget->uielement.as<BreadcrumbBar>();
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264
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265 Windows::Foundation::Collections::IVector<Windows::Foundation::IInspectable> items { winrt::single_threaded_vector<Windows::Foundation::IInspectable>() };
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266 void* elm = list->first(list);
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267 while (elm) {
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268 char* value = (char*)getvalue(elm, 0);
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269 wchar_t* wstr = str2wstr(value, nullptr);
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270 items.Append(box_value(wstr));
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271 free(wstr);
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272
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273 elm = list->next(list);
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274 }
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275
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276 bar.ItemsSource(items);
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277 }
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278
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279
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280 std::vector<int> ui_create_listview_selection(ListView listview) {
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281 std::vector<int> selection;
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282 int p = 0;
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283 auto ranges = listview.SelectedRanges();
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284 for (auto range : ranges) {
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285 int begin = range.FirstIndex();
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286 int end = range.LastIndex();
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287 for (int i = begin; i <= end; i++) {
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288 selection.push_back(i);
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289 }
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290 }
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291 return selection;
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292 }
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293

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