ui/winui/table.cpp

Fri, 13 Oct 2023 15:20:54 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Fri, 13 Oct 2023 15:20:54 +0200
branch
newapi
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parent 214
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child 216
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permissions
-rw-r--r--

add support for icons in the table widget (WinUI3)

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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 "table.h"
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32 #include "container.h"
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33 #include "util.h"
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34 #include "icons.h"
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35
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36 #include "../common/context.h"
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37 #include "../common/object.h"
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38 #include "../common/types.h"
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39
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40 #include <winrt/Microsoft.UI.Xaml.Data.h>
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41 #include <winrt/Microsoft.UI.Xaml.Media.h>
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42 #include <winrt/Microsoft.UI.Xaml.Input.h>
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43 #include <winrt/Windows.UI.Core.h>
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44
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45 using namespace winrt;
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46 using namespace Microsoft::UI::Xaml;
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47 using namespace Microsoft::UI::Xaml::Controls;
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48 using namespace Windows::UI::Xaml::Interop;
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49 using namespace winrt::Windows::Foundation;
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50 using namespace winrt::Microsoft::UI::Xaml::Controls::Primitives;
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51 using namespace winrt::Microsoft::UI::Xaml::Media;
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52 using namespace winrt::Windows::UI::Xaml::Input;
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53
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54 extern "C" void reg_table_destructor(UiContext * ctx, UiTable * table) {
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55 // TODO:
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56 }
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57
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58 UIEXPORT UIWIDGET ui_table_create(UiObject* obj, UiListArgs args) {
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59 if (!args.model) {
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60 return nullptr;
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61 }
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62
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63 UiObject* current = uic_current_obj(obj);
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64
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65 // create widgets and wrapper obj
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66 ScrollViewer scrollW = ScrollViewer();
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67 Grid grid = Grid();
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68 scrollW.Content(grid);
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69 UiTable* uitable = new UiTable(scrollW, grid);
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70 reg_table_destructor(current->ctx, uitable);
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71
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72
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73 uitable->getvalue = args.model->getvalue ? args.model->getvalue : args.getvalue;
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74
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75 // grid styling
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76 winrt::Windows::UI::Color bg = { 255, 255, 255, 255 }; // test color
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77 SolidColorBrush brush = SolidColorBrush(bg);
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78 grid.Background(brush);
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79
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80 // add columns from args.model
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81 uitable->add_header(args.model);
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82
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83 // bind var
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84 UiVar* var = uic_widget_var(obj->ctx, current->ctx, args.list, args.varname, UI_VAR_LIST);
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85 if (var) {
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86 UiList* list = (UiList*)var->value;
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87 list->update = ui_table_update;
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88 list->obj = uitable;
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89 uitable->update(list, 0);
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90 }
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91
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92 // create toolkit wrapper object and register destructor
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93 UIElement elm = scrollW;
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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 // add scrollW to current container
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98 UI_APPLY_LAYOUT1(current, args);
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99
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100 current->container->Add(scrollW, false);
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101
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102 return widget;
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103 }
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104
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105 extern "C" void ui_table_update(UiList * list, int i) {
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106 UiTable* table = (UiTable*)list->obj;
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107 table->clear();
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108 table->update(list, i);
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109 }
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110
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111 UiTable::UiTable(winrt::Microsoft::UI::Xaml::Controls::ScrollViewer scrollW, winrt::Microsoft::UI::Xaml::Controls::Grid grid) {
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112 this->scrollw = scrollw;
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113 this->grid = grid;
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114
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115 winrt::Windows::UI::Color highlightBg = { 255, 234, 234, 234 };
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116 highlightBrush = SolidColorBrush(highlightBg);
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117
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118 winrt::Windows::UI::Color defaultBg = { 0, 0, 0, 0 }; // default
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119 defaultBrush = SolidColorBrush(defaultBg);
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120
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121 winrt::Windows::UI::Color selectedBg = { 255, 204, 232, 255 }; // test color
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122 selectedBrush = SolidColorBrush(selectedBg);
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123
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124 winrt::Windows::UI::Color selectedFg = { 255, 0, 90, 158 }; // test color
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125 selectedBorderBrush = SolidColorBrush(selectedFg);
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126
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127 grid.KeyDown(
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128 winrt::Microsoft::UI::Xaml::Input::KeyEventHandler(
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129 [=](IInspectable const& sender, winrt::Microsoft::UI::Xaml::Input::KeyRoutedEventArgs const& args) {
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130 // key event for hanling the table cursor or enter
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131 })
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132 );
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133 }
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134
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135 UiTable::~UiTable() {
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136 ui_model_free(NULL, model);
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137 }
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138
203
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139 void UiTable::add_header(UiModel* model) {
215
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140 this->model = ui_model_copy(NULL, model);
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141
203
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142 GridLength gl;
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143 gl.Value = 0;
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144 gl.GridUnitType = GridUnitType::Auto;
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145
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146 // add header row definition
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147 auto headerRowDef = RowDefinition();
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148 headerRowDef.Height(gl);
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149 grid.RowDefinitions().Append(headerRowDef);
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150
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151
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152 for (int i = 0; i < model->columns;i++) {
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153 char* title = model->titles[i];
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154 UiModelType type = model->types[i];
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155
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156 // add grid column definition
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157 auto colDef = ColumnDefinition();
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158 colDef.Width(gl);
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159 grid.ColumnDefinitions().Append(colDef);
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160
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161 // add button
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162 auto button = Button();
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163 wchar_t* wlabel = str2wstr(title, nullptr);
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164 button.Content(box_value(wlabel));
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165 free(wlabel);
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166
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167 // some styling for the button
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168 Thickness border = { 0,0,1,0 };
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169 CornerRadius corner = { 0,0,0,0 };
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170 button.BorderThickness(border);
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171 button.CornerRadius(corner);
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172
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173 grid.SetColumn(button, i);
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174 grid.SetRow(button, 0);
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175 grid.Children().Append(button);
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176
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177 UiTableColumn h;
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178 h.header = button;
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179 header.push_back(h);
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180 }
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181
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182 maxrows = 1;
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183 }
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184
215
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185 static void textblock_set_str(TextBlock &t, const char *str) {
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186 if (str) {
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187 wchar_t* wstr = str2wstr(str, nullptr);
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188 t.Text(winrt::hstring(wstr));
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189 free(wstr);
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190 }
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191 }
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192
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193 static void textblock_set_int(TextBlock& t, int i) {
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194 wchar_t buf[16];
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195 swprintf(buf, 16, L"%d", i);
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196 t.Text(winrt::hstring(buf));
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197 }
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198
203
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199 void UiTable::update(UiList* list, int i) {
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200 if (getvalue == nullptr) {
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201 return;
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202 }
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203
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204 Thickness b1 = { 1, 1, 0, 1 }; // first col
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205 Thickness b2 = { 0, 1, 0, 1 }; // middle
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206 Thickness b3 = { 0, 1, 1, 1 }; // last col
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207
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208 GridLength gl;
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209 gl.Value = 0;
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210 gl.GridUnitType = GridUnitType::Auto;
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211
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212 int row = 1;
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213 void* elm = list->first(list);
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214 while (elm) {
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215 if (row >= maxrows) {
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216 auto rowdef = RowDefinition();
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217 rowdef.Height(gl);
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218 grid.RowDefinitions().Append(rowdef);
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219 maxrows = row;
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220 }
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221
215
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diff changeset
222 Thickness cellpadding = { 10,0,4,0 };
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223
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224 int model_col = 0;
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225 for (int col = 0; col < header.size(); col++, model_col++) {
214
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parents: 210
diff changeset
226 // create ui elements with the correct cell border
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parents: 210
diff changeset
227 // dependeing on the column
203
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228 Border cellBorder = Border();
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229 cellBorder.Background(defaultBrush);
215
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230
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231 // set the cell value
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232 UiModelType type = model->types[col];
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diff changeset
233 switch (type) {
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234 case UI_STRING: {
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235 TextBlock cell = TextBlock();
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diff changeset
236 cell.Padding(cellpadding);
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diff changeset
237 cell.VerticalAlignment(VerticalAlignment::Stretch);
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diff changeset
238 textblock_set_str(cell, (char*)getvalue(elm, model_col));
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diff changeset
239 cellBorder.Child(cell);
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diff changeset
240 break;
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241 }
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242 case UI_INTEGER: {
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243 TextBlock cell = TextBlock();
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244 cell.Padding(cellpadding);
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245 cell.VerticalAlignment(VerticalAlignment::Stretch);
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diff changeset
246 int *value = (int*)getvalue(elm, model_col);
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diff changeset
247 if (value) {
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diff changeset
248 textblock_set_int(cell, *value);
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diff changeset
249 }
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250 cellBorder.Child(cell);
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diff changeset
251 break;
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parents: 214
diff changeset
252 }
1bd5534c395d add support for icons in the table widget (WinUI3)
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253 case UI_ICON: {
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diff changeset
254 UiIcon* iconConstr = (UiIcon*)getvalue(elm, model_col);
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diff changeset
255 if (iconConstr) {
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diff changeset
256 IconElement icon = iconConstr->getIcon();
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diff changeset
257 cellBorder.Child(icon);
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diff changeset
258 }
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parents: 214
diff changeset
259 break;
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parents: 214
diff changeset
260 }
1bd5534c395d add support for icons in the table widget (WinUI3)
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diff changeset
261 case UI_ICON_TEXT: {
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diff changeset
262 StackPanel cellPanel = StackPanel();
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diff changeset
263 cellPanel.Spacing(2);
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diff changeset
264 cellPanel.Padding(cellpadding);
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diff changeset
265 cellPanel.VerticalAlignment(VerticalAlignment::Stretch);
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parents: 214
diff changeset
266
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267 cellPanel.Orientation(Orientation::Horizontal);
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diff changeset
268 UiIcon* iconConstr = (UiIcon*)getvalue(elm, model_col++);
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diff changeset
269 char* str = (char*)getvalue(elm, model_col);
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diff changeset
270 if (iconConstr) {
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diff changeset
271 IconElement icon = iconConstr->getIcon();
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diff changeset
272 cellPanel.Children().Append(icon);
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273 }
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274 TextBlock cell = TextBlock();
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275 textblock_set_str(cell, str);
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276 cellPanel.Children().Append(cell);
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277 cellBorder.Child(cellPanel);
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278 break;
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279 }
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280 }
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281
203
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282 cellBorder.BorderBrush(defaultBrush);
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283 if (col == 0) {
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284 cellBorder.BorderThickness(b1);
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285 }
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286 else if (col + 1 == header.size()) {
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287 cellBorder.BorderThickness(b3);
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288 }
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289 else {
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290 cellBorder.BorderThickness(b2);
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291 }
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292
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293 // event handler
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294 cellBorder.PointerPressed(
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295 winrt::Microsoft::UI::Xaml::Input::PointerEventHandler(
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296 [=](IInspectable const& sender, winrt::Microsoft::UI::Xaml::Input::PointerRoutedEventArgs const& args) {
214
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297 winrt::Windows::System::VirtualKeyModifiers modifiers = args.KeyModifiers();
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298
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299 if (modifiers == winrt::Windows::System::VirtualKeyModifiers::Control) {
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300 // add/remove current row
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301 if (!is_row_selected(row)) {
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302 row_background(row, selectedBrush, selectedBorderBrush);
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303 selection.push_back(row);
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304 }
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305 else {
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306 row_background(row, highlightBrush, highlightBrush);
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307 remove_from_selection(row);
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308 }
203
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309 }
214
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310 else if (modifiers == winrt::Windows::System::VirtualKeyModifiers::None || selection.size() == 0) {
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311 // no modifier or shift is pressed but there is no selection
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312 if (selection.size() > 0) {
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313 change_rows_bg(selection, defaultBrush, defaultBrush);
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314 }
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315
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316 row_background(row, selectedBrush, selectedBorderBrush);
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317 selection = { row };
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318 }
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319 else if (modifiers == winrt::Windows::System::VirtualKeyModifiers::Shift) {
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320 // select everything between the first selection and the current row
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321 std::sort(selection.begin(), selection.end());
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322 int first = selection.front();
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323
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324 // clear previous selection
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325 change_rows_bg(selection, defaultBrush, defaultBrush);
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326
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327 // create new selection
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328 std::vector<int> newselection;
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329 for (int s = first; s <= row; s++) {
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330 newselection.push_back(s);
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331 }
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332 selection = newselection;
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333 change_rows_bg(selection, selectedBrush, selectedBorderBrush);
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334 }
203
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335 })
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336 );
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337 cellBorder.PointerReleased(
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338 winrt::Microsoft::UI::Xaml::Input::PointerEventHandler(
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339 [=](IInspectable const& sender, winrt::Microsoft::UI::Xaml::Input::PointerRoutedEventArgs const& args) {
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340
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341 })
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342 );
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343 cellBorder.PointerEntered(
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344 winrt::Microsoft::UI::Xaml::Input::PointerEventHandler(
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345 [=](IInspectable const& sender, winrt::Microsoft::UI::Xaml::Input::PointerRoutedEventArgs const& args) {
214
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346 if (!is_row_selected(row)) {
203
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347 row_background(row, highlightBrush, highlightBrush);
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348 }
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349 })
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350 );
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351 cellBorder.PointerExited(
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352 winrt::Microsoft::UI::Xaml::Input::PointerEventHandler(
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353 [=](IInspectable const& sender, winrt::Microsoft::UI::Xaml::Input::PointerRoutedEventArgs const& args) {
214
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354 if (!is_row_selected(row)) {
203
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355 row_background(row, defaultBrush, defaultBrush);
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356 }
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357 })
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358 );
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359
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360 grid.SetColumn(cellBorder, col);
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361 grid.SetRow(cellBorder, row);
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362 grid.Children().Append(cellBorder);
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363 }
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364
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365 row++;
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366 elm = list->next(list);
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367 }
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368 }
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369
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370 void UiTable::clear() {
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371 for (int i = grid.Children().Size()-1; i >= 0; i--) {
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372 FrameworkElement elm = grid.Children().GetAt(i).as<FrameworkElement>();
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373 int child_row = grid.GetRow(elm);
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374 if (child_row > 0) {
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375 grid.Children().RemoveAt(i);
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376 }
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377 }
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378 }
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379
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380 void UiTable::row_background(int row, winrt::Microsoft::UI::Xaml::Media::Brush brush, winrt::Microsoft::UI::Xaml::Media::Brush borderBrush) {
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381 Thickness b1 = { 1, 1, 0, 1 }; // first col
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382 Thickness b2 = { 0, 1, 0, 1 }; // middle
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383 Thickness b3 = { 0, 1, 1, 1 }; // last col
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384
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385 for (auto child : grid.Children()) {
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386 FrameworkElement elm = child.as<FrameworkElement>();
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387 int child_row = grid.GetRow(elm);
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388 if (child_row == row) {
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389 Border b = elm.as<Border>();
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390 b.Background(brush);
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391 b.BorderBrush(borderBrush);
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392 }
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393 }
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394 }
214
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395
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396 void UiTable::change_rows_bg(std::vector<int> rows, winrt::Microsoft::UI::Xaml::Media::Brush brush, winrt::Microsoft::UI::Xaml::Media::Brush borderBrush) {
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397 std::for_each(rows.cbegin(), rows.cend(), [&](const int& row) {row_background(row, brush, borderBrush); });
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398 }
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399
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400 bool UiTable::is_row_selected(int row) {
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401 return std::find(selection.begin(), selection.end(), row) != selection.end() ? true : false;
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402 }
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403
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404 void UiTable::remove_from_selection(int row) {
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diff changeset
405 selection.erase(std::remove(selection.begin(), selection.end(), row), selection.end());
279c0c81d3b1 improve table row selection, add support for multiple selections (WinUI3)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 210
diff changeset
406 selection.shrink_to_fit();
279c0c81d3b1 improve table row selection, add support for multiple selections (WinUI3)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 210
diff changeset
407 }

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