Merge pull request #261 from irihitech/ElasticWrapPanel
Add ElasticWrapPanel control
This commit is contained in:
Dong Bin
GitHub
0
demo/Ursa.Demo/Models/MenuKeys.cs
Normal file
0
demo/Ursa.Demo/Models/MenuKeys.cs
Normal file
319
demo/Ursa.Demo/Pages/ElasticWrapPanelDemo.axaml
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319
demo/Ursa.Demo/Pages/ElasticWrapPanelDemo.axaml
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<UserControl x:Class="Ursa.Demo.Pages.ElasticWrapPanelDemo"
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xmlns="https://github.com/avaloniaui"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
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xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
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xmlns:u="https://irihi.tech/ursa"
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xmlns:viewModels="clr-namespace:Ursa.Demo.ViewModels"
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d:DesignHeight="800"
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d:DesignWidth="800"
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x:CompileBindings="True"
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x:DataType="viewModels:ElasticWrapPanelDemoViewModel"
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mc:Ignorable="d">
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<UserControl.Styles>
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<Style Selector="u|FormItem">
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<Setter Property="Width" Value="320" />
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</Style>
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<Style Selector="TabItem#FixToRBTabItem WrapPanel > Border, u|ElasticWrapPanel > Border">
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<Setter Property="Width" Value="{Binding ItemSelfWidth}" />
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<Setter Property="Height" Value="{Binding ItemSelfHeight}" />
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</Style>
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</UserControl.Styles>
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<DockPanel>
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<u:Form DockPanel.Dock="Left"
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LabelAlignment="Left"
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LabelPosition="Left"
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LabelWidth="*">
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<u:FormGroup>
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<u:FormItem Label="Orientation">
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<u:EnumSelector EnumType="Orientation" Value="{Binding SelectedOrientation}" />
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</u:FormItem>
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<u:FormItem Label="HorizontalScrollBar">
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<u:EnumSelector EnumType="ScrollBarVisibility" Value="{Binding HorizontalVisibility}" />
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</u:FormItem>
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<u:FormItem Label="VerticalScrollBar">
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<u:EnumSelector EnumType="ScrollBarVisibility" Value="{Binding VerticalVisibility}" />
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</u:FormItem>
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<u:FormItem>
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<u:FormItem.Label>
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<CheckBox Content="IsFillHorizontal" IsChecked="{Binding IsFillHorizontal}" />
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</u:FormItem.Label>
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</u:FormItem>
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<u:FormItem Label="ItemWidth">
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<u:NumericDoubleUpDown
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Step="1"
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AllowDrag="True"
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Maximum="1000"
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Minimum="0"
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Value="{Binding ItemWidth}" />
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</u:FormItem>
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<u:FormItem>
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<u:FormItem.Label>
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<CheckBox Content="IsFillVertical" IsChecked="{Binding IsFillVertical}" />
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</u:FormItem.Label>
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</u:FormItem>
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<u:FormItem Label="ItemHeight">
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<u:NumericDoubleUpDown
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AllowDrag="True"
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Step="1"
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Maximum="1000"
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Minimum="0"
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Value="{Binding ItemHeight}" />
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</u:FormItem>
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</u:FormGroup>
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<u:FormGroup Header="FixToRB Extension" IsEnabled="{Binding #FixToRBTabItem.IsSelected}">
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<u:FormItem>
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<u:FormItem.Label>
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<CheckBox Content="AutoWidth" IsChecked="{Binding AutoWidth}" />
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</u:FormItem.Label>
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</u:FormItem>
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<u:FormItem Label="ItemSelfWidth">
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<u:NumericDoubleUpDown
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AllowDrag="True"
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Maximum="1000"
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Minimum="0"
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IsEnabled="{Binding !AutoWidth}"
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Value="{Binding ItemSelfWidth}" />
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</u:FormItem>
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<u:FormItem>
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<u:FormItem.Label>
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<CheckBox Content="AutoHeight" IsChecked="{Binding AutoHeight}" />
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</u:FormItem.Label>
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</u:FormItem>
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<u:FormItem Label="ItemSelfHeight">
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<u:NumericDoubleUpDown
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AllowDrag="True"
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Maximum="1000"
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Minimum="0"
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IsEnabled="{Binding !AutoHeight}"
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Value="{Binding ItemSelfHeight}" />
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</u:FormItem>
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<u:FormItem Label="HorizontalAlignment">
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<u:EnumSelector EnumType="HorizontalAlignment" Value="{Binding CmbHAlign}" />
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</u:FormItem>
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<u:FormItem Label="VerticalAlignment">
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<u:EnumSelector EnumType="VerticalAlignment" Value="{Binding CmbVAlign}" />
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</u:FormItem>
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</u:FormGroup>
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</u:Form>
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<TabControl>
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<TabItem Header="Flat">
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<TabControl>
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<TabItem Header="Common">
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<u:ElasticWrapPanel IsFillHorizontal="{Binding IsFillHorizontal}"
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IsFillVertical="{Binding IsFillVertical}"
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ItemHeight="{Binding ItemHeight}"
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ItemWidth="{Binding ItemWidth}"
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Orientation="{Binding SelectedOrientation}">
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<Border Background="{DynamicResource SemiRed5Color}" />
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<Border Background="{DynamicResource SemiPink5Color}" />
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<Border Background="{DynamicResource SemiPurple5Color}" />
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<Border Background="{DynamicResource SemiViolet5Color}" />
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<Border Background="{DynamicResource SemiIndigo5Color}" />
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<Border Background="{DynamicResource SemiBlue5Color}" />
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<Border Background="{DynamicResource SemiLightBlue5Color}" />
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<Border Background="{DynamicResource SemiCyan5Color}" />
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<Border Background="{DynamicResource SemiTeal5Color}" />
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<Border Background="{DynamicResource SemiGreen5Color}" />
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<Border Background="{DynamicResource SemiLightGreen5Color}" />
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<Border Background="{DynamicResource SemiLime5Color}" />
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<Border Background="{DynamicResource SemiYellow5Color}" />
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<Border Background="{DynamicResource SemiAmber5Color}" />
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<Border Background="{DynamicResource SemiOrange5Color}" />
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<Border Background="{DynamicResource SemiGrey5Color}" />
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</u:ElasticWrapPanel>
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</TabItem>
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<TabItem Header="Grid Auto">
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<Grid RowDefinitions="auto,*">
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<u:ElasticWrapPanel Grid.Row="0"
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IsFillHorizontal="{Binding IsFillHorizontal}"
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IsFillVertical="{Binding IsFillVertical}"
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ItemHeight="{Binding ItemHeight}"
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ItemWidth="{Binding ItemWidth}"
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Orientation="{Binding SelectedOrientation}">
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<Border Background="{DynamicResource SemiRed5Color}" />
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<Border Background="{DynamicResource SemiPink5Color}" />
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<Border Background="{DynamicResource SemiPurple5Color}" />
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<Border Background="{DynamicResource SemiViolet5Color}" />
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<Border Background="{DynamicResource SemiIndigo5Color}" />
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<Border Background="{DynamicResource SemiBlue5Color}" />
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<Border Background="{DynamicResource SemiLightBlue5Color}" />
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<Border Background="{DynamicResource SemiCyan5Color}" />
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<Border Background="{DynamicResource SemiTeal5Color}" />
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<Border Background="{DynamicResource SemiGreen5Color}" />
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<Border Background="{DynamicResource SemiLightGreen5Color}" />
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<Border Background="{DynamicResource SemiLime5Color}" />
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<Border Background="{DynamicResource SemiYellow5Color}" />
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<Border Background="{DynamicResource SemiAmber5Color}" />
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<Border Background="{DynamicResource SemiOrange5Color}" />
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<Border Background="{DynamicResource SemiGrey5Color}" />
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</u:ElasticWrapPanel>
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<Border Grid.Row="1" Margin="0,4" Theme="{StaticResource CardBorder}">
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<TextBlock Text="This is blank" />
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</Border>
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</Grid>
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</TabItem>
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<TabItem Header="ScrollViewer">
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<Border Margin="0,4">
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<ScrollViewer HorizontalScrollBarVisibility="{Binding HorizontalVisibility}"
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VerticalScrollBarVisibility="{Binding VerticalVisibility}">
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<u:ElasticWrapPanel IsFillHorizontal="{Binding IsFillHorizontal}"
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IsFillVertical="{Binding IsFillVertical}"
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ItemHeight="{Binding ItemHeight}"
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ItemWidth="{Binding ItemWidth}"
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Orientation="{Binding SelectedOrientation}">
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<Border Background="{DynamicResource SemiRed5Color}" />
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<Border Background="{DynamicResource SemiPink5Color}" />
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<Border Background="{DynamicResource SemiPurple5Color}" />
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<Border Background="{DynamicResource SemiViolet5Color}" />
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<Border Background="{DynamicResource SemiIndigo5Color}" />
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<Border Background="{DynamicResource SemiBlue5Color}" />
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<Border Background="{DynamicResource SemiLightBlue5Color}" />
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<Border Background="{DynamicResource SemiCyan5Color}" />
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<Border Background="{DynamicResource SemiTeal5Color}" />
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<Border Background="{DynamicResource SemiGreen5Color}" />
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<Border Background="{DynamicResource SemiLightGreen5Color}" />
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<Border Background="{DynamicResource SemiLime5Color}" />
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<Border Background="{DynamicResource SemiYellow5Color}" />
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<Border Background="{DynamicResource SemiAmber5Color}" />
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<Border Background="{DynamicResource SemiOrange5Color}" />
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<Border Background="{DynamicResource SemiGrey5Color}" />
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</u:ElasticWrapPanel>
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</ScrollViewer>
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</Border>
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</TabItem>
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</TabControl>
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</TabItem>
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<TabItem Header="FixToRB" Name="FixToRBTabItem">
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<DockPanel>
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<TabControl>
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<TabItem Header="Single">
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<StackPanel>
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<ScrollViewer HorizontalScrollBarVisibility="{Binding HorizontalVisibility}"
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VerticalScrollBarVisibility="{Binding VerticalVisibility}">
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<StackPanel>
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<u:Divider HorizontalContentAlignment="Left" Content="WrapPanel" />
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<WrapPanel ItemHeight="{Binding ItemHeight}"
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ItemWidth="{Binding ItemWidth}"
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Orientation="{Binding SelectedOrientation}">
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<Border Background="{DynamicResource SemiRed5Color}" />
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<Border Background="{DynamicResource SemiPink5Color}" />
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<Border Background="{DynamicResource SemiPurple5Color}" />
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<Border Background="{DynamicResource SemiViolet5Color}" />
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<UniformGrid MinWidth="200"
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HorizontalAlignment="{Binding CmbHAlign}"
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VerticalAlignment="{Binding CmbVAlign}"
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Rows="1">
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<Button Content="Search" />
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<Button Content="Export" />
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</UniformGrid>
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</WrapPanel>
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</StackPanel>
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</ScrollViewer>
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<ScrollViewer HorizontalScrollBarVisibility="{Binding HorizontalVisibility}"
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VerticalScrollBarVisibility="{Binding VerticalVisibility}">
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<StackPanel>
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<u:Divider HorizontalContentAlignment="Left" Content="ElasticWrapPanel" />
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<u:ElasticWrapPanel IsFillHorizontal="{Binding IsFillHorizontal}"
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IsFillVertical="{Binding IsFillVertical}"
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ItemHeight="{Binding ItemHeight}"
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ItemWidth="{Binding ItemWidth}"
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Orientation="{Binding SelectedOrientation}">
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<Border Background="{DynamicResource SemiRed5Color}" />
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<Border Background="{DynamicResource SemiPink5Color}" />
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<Border Background="{DynamicResource SemiPurple5Color}" />
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<Border Background="{DynamicResource SemiViolet5Color}" />
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<UniformGrid MinWidth="200"
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HorizontalAlignment="{Binding CmbHAlign}"
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VerticalAlignment="{Binding CmbVAlign}"
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u:ElasticWrapPanel.FixToRB="True"
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Rows="1">
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<Button Content="Search" />
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<Button Content="Export" />
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</UniformGrid>
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</u:ElasticWrapPanel>
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</StackPanel>
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</ScrollViewer>
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</StackPanel>
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</TabItem>
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<TabItem Header="Multiply">
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<StackPanel>
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<ScrollViewer HorizontalScrollBarVisibility="{Binding HorizontalVisibility}"
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VerticalScrollBarVisibility="{Binding VerticalVisibility}">
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<StackPanel>
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<u:Divider HorizontalContentAlignment="Left" Content="WrapPanel" />
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<WrapPanel ItemHeight="{Binding ItemHeight}"
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ItemWidth="{Binding ItemWidth}"
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Orientation="{Binding SelectedOrientation}">
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<Border Background="{DynamicResource SemiRed5Color}" />
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<Border Background="{DynamicResource SemiPink5Color}" />
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<Border Background="{DynamicResource SemiPurple5Color}" />
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<Border Background="{DynamicResource SemiViolet5Color}" />
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<UniformGrid MinWidth="200"
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HorizontalAlignment="{Binding CmbHAlign}"
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VerticalAlignment="{Binding CmbVAlign}"
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u:ElasticWrapPanel.FixToRB="True"
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Rows="1">
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<Button Content="Search" />
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<Button Content="Export" />
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</UniformGrid>
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<Border Background="{DynamicResource SemiIndigo5Color}" />
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<Border Background="{DynamicResource SemiBlue5Color}" />
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<Border Background="{DynamicResource SemiLightBlue5Color}" />
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<Border Background="{DynamicResource SemiCyan5Color}" />
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<UniformGrid MinWidth="200"
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HorizontalAlignment="{Binding CmbHAlign}"
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VerticalAlignment="{Binding CmbVAlign}"
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u:ElasticWrapPanel.FixToRB="True"
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Rows="1">
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<Button Content="Search" />
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<Button Content="Export" />
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</UniformGrid>
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</WrapPanel>
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</StackPanel>
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</ScrollViewer>
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<ScrollViewer HorizontalScrollBarVisibility="{Binding HorizontalVisibility}"
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VerticalScrollBarVisibility="{Binding VerticalVisibility}">
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<StackPanel>
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<u:Divider HorizontalContentAlignment="Left" Content="ElasticWrapPanel" />
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<u:ElasticWrapPanel IsFillHorizontal="{Binding IsFillHorizontal}"
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IsFillVertical="{Binding IsFillVertical}"
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ItemHeight="{Binding ItemHeight}"
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ItemWidth="{Binding ItemWidth}"
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Orientation="{Binding SelectedOrientation}">
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<Border Background="{DynamicResource SemiRed5Color}" />
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<Border Background="{DynamicResource SemiPink5Color}" />
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<Border Background="{DynamicResource SemiPurple5Color}" />
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<Border Background="{DynamicResource SemiViolet5Color}" />
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<UniformGrid MinWidth="200"
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HorizontalAlignment="{Binding CmbHAlign}"
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VerticalAlignment="{Binding CmbVAlign}"
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u:ElasticWrapPanel.FixToRB="True"
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Rows="1">
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<Button Content="Search" />
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<Button Content="Export" />
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</UniformGrid>
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<Border Background="{DynamicResource SemiIndigo5Color}" />
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<Border Background="{DynamicResource SemiBlue5Color}" />
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<Border Background="{DynamicResource SemiLightBlue5Color}" />
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<Border Background="{DynamicResource SemiCyan5Color}" />
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<UniformGrid MinWidth="200"
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HorizontalAlignment="{Binding CmbHAlign}"
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VerticalAlignment="{Binding CmbVAlign}"
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u:ElasticWrapPanel.FixToRB="True"
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Rows="1">
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<Button Content="Search" />
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<Button Content="Export" />
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</UniformGrid>
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</u:ElasticWrapPanel>
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</StackPanel>
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</ScrollViewer>
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</StackPanel>
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</TabItem>
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</TabControl>
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</DockPanel>
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</TabItem>
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</TabControl>
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</DockPanel>
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</UserControl>
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13
demo/Ursa.Demo/Pages/ElasticWrapPanelDemo.axaml.cs
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13
demo/Ursa.Demo/Pages/ElasticWrapPanelDemo.axaml.cs
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@@ -0,0 +1,13 @@
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using Avalonia.Controls;
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using Ursa.Demo.ViewModels;
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namespace Ursa.Demo.Pages;
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public partial class ElasticWrapPanelDemo : UserControl
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{
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public ElasticWrapPanelDemo()
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{
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InitializeComponent();
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DataContext = new ElasticWrapPanelDemoViewModel();
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}
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}
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54
demo/Ursa.Demo/ViewModels/ElasticWrapPanelDemoViewModel.cs
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54
demo/Ursa.Demo/ViewModels/ElasticWrapPanelDemoViewModel.cs
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using Avalonia.Controls.Primitives;
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using Avalonia.Layout;
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using CommunityToolkit.Mvvm.ComponentModel;
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namespace Ursa.Demo.ViewModels;
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public partial class ElasticWrapPanelDemoViewModel : ObservableObject
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{
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[ObservableProperty] private Orientation _selectedOrientation = Orientation.Horizontal;
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[ObservableProperty] private ScrollBarVisibility _horizontalVisibility = ScrollBarVisibility.Auto;
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[ObservableProperty] private ScrollBarVisibility _verticalVisibility = ScrollBarVisibility.Auto;
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[ObservableProperty] private bool _isFillHorizontal;
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[ObservableProperty] private bool _isFillVertical;
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[ObservableProperty] private double _itemWidth = 40d;
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[ObservableProperty] private double _itemHeight = 40d;
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[ObservableProperty] private bool _autoWidth = true;
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[ObservableProperty] private bool _autoHeight = true;
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[ObservableProperty] private double _itemSelfWidth = double.NaN;
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[ObservableProperty] private double _itemSelfHeight = double.NaN;
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[ObservableProperty] private HorizontalAlignment _cmbHAlign = HorizontalAlignment.Left;
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[ObservableProperty] private VerticalAlignment _cmbVAlign = VerticalAlignment.Stretch;
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private double _oldItemSelfWidth;
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private double _oldItemSelfHeight;
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partial void OnAutoWidthChanged(bool value)
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{
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if (value)
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{
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_oldItemSelfWidth = ItemSelfWidth;
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ItemSelfWidth = double.NaN;
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}
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else
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{
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ItemSelfWidth = _oldItemSelfWidth;
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}
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}
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partial void OnAutoHeightChanged(bool value)
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{
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if (value)
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{
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_oldItemSelfHeight = ItemSelfHeight;
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ItemSelfHeight = double.NaN;
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}
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else
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{
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ItemSelfHeight = _oldItemSelfHeight;
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}
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}
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}
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@@ -36,6 +36,7 @@ public class MainViewViewModel : ViewModelBase
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MenuKeys.MenuKeyDisableContainer => new DisableContainerDemoViewModel(),
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MenuKeys.MenuKeyDrawer => new DrawerDemoViewModel(),
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MenuKeys.MenuKeyDualBadge => new DualBadgeDemoViewModel(),
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MenuKeys.MenuKeyElasticWrapPanel => new ElasticWrapPanelDemoViewModel(),
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MenuKeys.MenuKeyEnumSelector => new EnumSelectorDemoViewModel(),
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MenuKeys.MenuKeyForm => new FormDemoViewModel(),
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MenuKeys.MenuKeyImageViewer => new ImageViewerDemoViewModel(),
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@@ -23,6 +23,7 @@ public class MenuViewModel: ViewModelBase
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new() { MenuHeader = "Divider", Key = MenuKeys.MenuKeyDivider },
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new() { MenuHeader = "Drawer", Key = MenuKeys.MenuKeyDrawer },
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new() { MenuHeader = "DualBadge", Key = MenuKeys.MenuKeyDualBadge },
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new() { MenuHeader = "ElasticWrapPanel", Key = MenuKeys.MenuKeyElasticWrapPanel },
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new() { MenuHeader = "Enum Selector", Key = MenuKeys.MenuKeyEnumSelector },
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new() { MenuHeader = "Form", Key = MenuKeys.MenuKeyForm },
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new() { MenuHeader = "Icon Button", Key = MenuKeys.MenuKeyIconButton },
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@@ -69,6 +70,7 @@ public static class MenuKeys
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public const string MenuKeyDisableContainer = "DisableContainer";
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public const string MenuKeyDrawer = "Drawer";
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public const string MenuKeyDualBadge = "DualBadge";
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public const string MenuKeyElasticWrapPanel = "ElasticWrapPanel";
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public const string MenuKeyEnumSelector = "EnumSelector";
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public const string MenuKeyForm = "Form";
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public const string MenuKeyImageViewer = "ImageViewer";
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3
src/Ursa.Themes.Semi/Controls/ElasticWrapPanel.axaml
Normal file
3
src/Ursa.Themes.Semi/Controls/ElasticWrapPanel.axaml
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@@ -0,0 +1,3 @@
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<ResourceDictionary xmlns="https://github.com/avaloniaui"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
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</ResourceDictionary>
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@@ -13,6 +13,7 @@
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<ResourceInclude Source="Divider.axaml" />
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<ResourceInclude Source="Drawer.axaml" />
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||||
<ResourceInclude Source="DualBadge.axaml" />
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||||
<ResourceInclude Source="ElasticWrapPanel.axaml" />
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<ResourceInclude Source="EnumSelector.axaml" />
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<ResourceInclude Source="Form.axaml" />
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<ResourceInclude Source="IconButton.axaml" />
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481
src/Ursa/Controls/ElasticWrapPanel.cs
Normal file
481
src/Ursa/Controls/ElasticWrapPanel.cs
Normal file
@@ -0,0 +1,481 @@
|
||||
using Avalonia;
|
||||
using Avalonia.Controls;
|
||||
using Avalonia.Layout;
|
||||
using Avalonia.Utilities;
|
||||
using static System.Math;
|
||||
|
||||
namespace Ursa.Controls;
|
||||
|
||||
public class ElasticWrapPanel : WrapPanel
|
||||
{
|
||||
static ElasticWrapPanel()
|
||||
{
|
||||
IsFillHorizontalProperty.Changed.AddClassHandler<Control>(OnIsFillPropertyChanged);
|
||||
IsFillVerticalProperty.Changed.AddClassHandler<Control>(OnIsFillPropertyChanged);
|
||||
|
||||
AffectsMeasure<ElasticWrapPanel>(IsFillHorizontalProperty, IsFillVerticalProperty);
|
||||
}
|
||||
|
||||
#region AttachedProperty
|
||||
|
||||
public static void SetFixToRB(Control element, bool value)
|
||||
{
|
||||
_ = element ?? throw new ArgumentNullException(nameof(element));
|
||||
element.SetValue(FixToRBProperty, value);
|
||||
}
|
||||
|
||||
public static bool GetIsFixToRB(Control element)
|
||||
{
|
||||
_ = element ?? throw new ArgumentNullException(nameof(element));
|
||||
return element.GetValue(FixToRBProperty);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Fixed to [Right (Horizontal Mode) | Bottom (Vertical Mode)]
|
||||
/// which will cause line breaks
|
||||
/// </summary>
|
||||
public static readonly AttachedProperty<bool> FixToRBProperty =
|
||||
AvaloniaProperty.RegisterAttached<ElasticWrapPanel, Control, bool>("FixToRB");
|
||||
|
||||
#endregion
|
||||
|
||||
#region StyledProperty
|
||||
|
||||
public bool IsFillHorizontal
|
||||
{
|
||||
get => GetValue(IsFillHorizontalProperty);
|
||||
set => SetValue(IsFillHorizontalProperty, value);
|
||||
}
|
||||
|
||||
public static readonly StyledProperty<bool> IsFillHorizontalProperty =
|
||||
AvaloniaProperty.Register<ElasticWrapPanel, bool>(nameof(IsFillHorizontal));
|
||||
|
||||
public bool IsFillVertical
|
||||
{
|
||||
get => GetValue(IsFillVerticalProperty);
|
||||
set => SetValue(IsFillVerticalProperty, value);
|
||||
}
|
||||
|
||||
public static readonly StyledProperty<bool> IsFillVerticalProperty =
|
||||
AvaloniaProperty.Register<ElasticWrapPanel, bool>(nameof(IsFillVertical));
|
||||
|
||||
private static void OnIsFillPropertyChanged(AvaloniaObject d, AvaloniaPropertyChangedEventArgs e)
|
||||
{
|
||||
(d as ElasticWrapPanel)?.InvalidateMeasure();
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
protected override Size MeasureOverride(Size constraint)
|
||||
{
|
||||
double itemWidth = ItemWidth;
|
||||
double itemHeight = ItemHeight;
|
||||
var orientation = Orientation;
|
||||
var children = Children;
|
||||
|
||||
// Determine the space required for items in the same row/column based on horizontal/vertical arrangement
|
||||
var curLineSize = new UVSize(orientation);
|
||||
|
||||
// Calculate the total space requirement for this ElasticWrapPanel
|
||||
var panelSize = new UVSize(orientation);
|
||||
|
||||
// Measure UVSize with the given space constraint, used for measuring elements when ItemWidth and ItemHeight are not set
|
||||
var uvConstraint = new UVSize(orientation, constraint.Width, constraint.Height);
|
||||
bool itemWidthSet = !double.IsNaN(itemWidth);
|
||||
bool itemHeightSet = !double.IsNaN(itemHeight);
|
||||
|
||||
var childConstraint = new Size(
|
||||
itemWidthSet ? itemWidth : constraint.Width,
|
||||
itemHeightSet ? itemHeight : constraint.Height);
|
||||
|
||||
// Measurement space for elements with FixToRB=True
|
||||
Size childFixConstraint = new Size(constraint.Width, constraint.Height);
|
||||
switch (orientation)
|
||||
{
|
||||
case Orientation.Horizontal when itemHeightSet:
|
||||
childFixConstraint = new Size(constraint.Width, itemHeight);
|
||||
break;
|
||||
case Orientation.Vertical when itemWidthSet:
|
||||
childFixConstraint = new Size(itemWidth, constraint.Height);
|
||||
break;
|
||||
}
|
||||
|
||||
// This is the size for non-space measurement
|
||||
UVSize itemSetSize = new UVSize(orientation,
|
||||
itemWidthSet ? itemWidth : 0,
|
||||
itemHeightSet ? itemHeight : 0);
|
||||
|
||||
foreach (var child in children)
|
||||
{
|
||||
UVSize sz;
|
||||
if (GetIsFixToRB(child))
|
||||
{
|
||||
// Measure the element when it needs to be fixed to the right/bottom
|
||||
child.Measure(childFixConstraint);
|
||||
sz = new UVSize(orientation, child.DesiredSize.Width, child.DesiredSize.Height);
|
||||
|
||||
// Ensure the width/height is within the constraint limits
|
||||
if (sz.U > 0 && itemSetSize.U > 0)
|
||||
{
|
||||
if (sz.U < itemSetSize.U)
|
||||
{
|
||||
sz.U = itemSetSize.U;
|
||||
}
|
||||
else
|
||||
{
|
||||
sz.U = Min(sz.U, uvConstraint.U);
|
||||
}
|
||||
}
|
||||
|
||||
if (sz.V > 0 && itemSetSize.V > 0 && sz.V < itemSetSize.V)
|
||||
{
|
||||
sz.V = itemSetSize.V;
|
||||
}
|
||||
|
||||
if (MathUtilities.GreaterThan(curLineSize.U + sz.U, uvConstraint.U))
|
||||
{
|
||||
panelSize.U = Max(curLineSize.U, panelSize.U);
|
||||
panelSize.V += curLineSize.V;
|
||||
curLineSize = sz;
|
||||
}
|
||||
else
|
||||
{
|
||||
curLineSize.U += sz.U;
|
||||
curLineSize.V = Max(sz.V, curLineSize.V);
|
||||
panelSize.U = Max(curLineSize.U, panelSize.U);
|
||||
panelSize.V += curLineSize.V;
|
||||
}
|
||||
|
||||
curLineSize = new UVSize(orientation);
|
||||
}
|
||||
else
|
||||
{
|
||||
// Flow passes its own constraint to children
|
||||
child.Measure(childConstraint);
|
||||
|
||||
// This is the size of the child in UV space
|
||||
sz = new UVSize(orientation,
|
||||
itemWidthSet ? itemWidth : child.DesiredSize.Width,
|
||||
itemHeightSet ? itemHeight : child.DesiredSize.Height);
|
||||
|
||||
if (MathUtilities.GreaterThan(curLineSize.U + sz.U, uvConstraint.U)) // Need to switch to another line
|
||||
{
|
||||
panelSize.U = Max(curLineSize.U, panelSize.U);
|
||||
panelSize.V += curLineSize.V;
|
||||
curLineSize = sz;
|
||||
|
||||
if (MathUtilities.GreaterThan(sz.U, uvConstraint.U)) // The element is wider than the constraint - give it a separate line
|
||||
{
|
||||
panelSize.U = Max(sz.U, panelSize.U);
|
||||
panelSize.V += sz.V;
|
||||
curLineSize = new UVSize(orientation);
|
||||
}
|
||||
}
|
||||
else // Continue to accumulate a line
|
||||
{
|
||||
curLineSize.U += sz.U;
|
||||
curLineSize.V = Max(sz.V, curLineSize.V);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// The last line size, if any should be added
|
||||
panelSize.U = Max(curLineSize.U, panelSize.U);
|
||||
panelSize.V += curLineSize.V;
|
||||
|
||||
// Go from UV space to W/H space
|
||||
return new Size(panelSize.Width, panelSize.Height);
|
||||
}
|
||||
|
||||
protected override Size ArrangeOverride(Size finalSize)
|
||||
{
|
||||
bool itemWidthSet = !double.IsNaN(ItemWidth);
|
||||
bool itemHeightSet = !double.IsNaN(ItemHeight);
|
||||
|
||||
// This is the size for non-space measurement
|
||||
UVSize itemSetSize = new UVSize(Orientation,
|
||||
itemWidthSet ? ItemWidth : 0,
|
||||
itemHeightSet ? ItemHeight : 0);
|
||||
|
||||
// Measure UVSize with the given space constraint, used for measuring elements when ItemWidth and ItemHeight are not set
|
||||
UVSize uvFinalSize = new UVSize(Orientation, finalSize.Width, finalSize.Height);
|
||||
|
||||
// Collection of elements in the same direction (row/column)
|
||||
List<UVCollection> lineUVCollection = new List<UVCollection>();
|
||||
|
||||
#region Get the collection of elements in the same direction
|
||||
|
||||
// Current collection of elements in a row/column
|
||||
UVCollection curLineUIs = new UVCollection(Orientation, itemSetSize);
|
||||
|
||||
// Iterate over the child elements
|
||||
var children = Children;
|
||||
foreach (var child in children)
|
||||
{
|
||||
UVSize sz;
|
||||
if (GetIsFixToRB(child))
|
||||
{
|
||||
// Measure the element when it needs to be fixed to the right/bottom
|
||||
sz = new UVSize(Orientation, child.DesiredSize.Width, child.DesiredSize.Height);
|
||||
double lengthCount = 1;
|
||||
if (sz.U > 0 && itemSetSize.U > 0)
|
||||
{
|
||||
if (sz.U < itemSetSize.U)
|
||||
{
|
||||
sz.U = itemSetSize.U;
|
||||
}
|
||||
else
|
||||
{
|
||||
lengthCount = Ceiling(sz.U / itemSetSize.U);
|
||||
sz.U = Min(sz.U, uvFinalSize.U);
|
||||
}
|
||||
}
|
||||
|
||||
if (sz.V > 0 && itemSetSize.V > 0 && sz.V < itemSetSize.V)
|
||||
{
|
||||
sz.V = itemSetSize.V;
|
||||
}
|
||||
|
||||
if (MathUtilities.GreaterThan(curLineUIs.TotalU + sz.U, uvFinalSize.U))
|
||||
{
|
||||
if (curLineUIs.Count > 0)
|
||||
{
|
||||
lineUVCollection.Add(curLineUIs);
|
||||
}
|
||||
|
||||
curLineUIs = new UVCollection(Orientation, itemSetSize);
|
||||
curLineUIs.Add(child, sz, Convert.ToInt32(lengthCount));
|
||||
}
|
||||
else
|
||||
{
|
||||
curLineUIs.Add(child, sz, Convert.ToInt32(lengthCount));
|
||||
}
|
||||
|
||||
lineUVCollection.Add(curLineUIs);
|
||||
curLineUIs = new UVCollection(Orientation, itemSetSize);
|
||||
}
|
||||
else
|
||||
{
|
||||
sz = new UVSize(Orientation,
|
||||
itemWidthSet ? ItemWidth : child.DesiredSize.Width,
|
||||
itemHeightSet ? ItemHeight : child.DesiredSize.Height);
|
||||
|
||||
if (MathUtilities.GreaterThan(curLineUIs.TotalU + sz.U, uvFinalSize.U)) // Need to switch to another line
|
||||
{
|
||||
if (curLineUIs.Count > 0)
|
||||
{
|
||||
lineUVCollection.Add(curLineUIs);
|
||||
}
|
||||
|
||||
curLineUIs = new UVCollection(Orientation, itemSetSize);
|
||||
curLineUIs.Add(child, sz);
|
||||
if (MathUtilities.GreaterThan(sz.U, uvFinalSize.U))
|
||||
{
|
||||
lineUVCollection.Add(curLineUIs);
|
||||
curLineUIs = new UVCollection(Orientation, itemSetSize);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
curLineUIs.Add(child, sz);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (curLineUIs.Count > 0 && !lineUVCollection.Contains(curLineUIs))
|
||||
{
|
||||
lineUVCollection.Add(curLineUIs);
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
bool isFillU = false;
|
||||
bool isFillV = false;
|
||||
switch (Orientation)
|
||||
{
|
||||
case Orientation.Horizontal:
|
||||
isFillU = IsFillHorizontal;
|
||||
isFillV = IsFillVertical;
|
||||
break;
|
||||
|
||||
case Orientation.Vertical:
|
||||
isFillU = IsFillVertical;
|
||||
isFillV = IsFillHorizontal;
|
||||
break;
|
||||
}
|
||||
|
||||
if (lineUVCollection.Count > 0)
|
||||
{
|
||||
double accumulatedV = 0;
|
||||
double adaptULength = 0;
|
||||
bool isAdaptV = false;
|
||||
double adaptVLength = 0;
|
||||
if (isFillU)
|
||||
{
|
||||
if (itemSetSize.U > 0)
|
||||
{
|
||||
int maxElementCount = lineUVCollection
|
||||
.Max(uiSet => uiSet.UICollection
|
||||
.Sum(p => p.Value.ULengthCount));
|
||||
adaptULength = (uvFinalSize.U - maxElementCount * itemSetSize.U) / maxElementCount;
|
||||
adaptULength = Max(adaptULength, 0);
|
||||
}
|
||||
}
|
||||
|
||||
if (isFillV)
|
||||
{
|
||||
if (itemSetSize.V > 0)
|
||||
{
|
||||
isAdaptV = true;
|
||||
adaptVLength = uvFinalSize.V / lineUVCollection.Count;
|
||||
}
|
||||
}
|
||||
|
||||
bool isHorizontal = Orientation == Orientation.Horizontal;
|
||||
foreach (var uvCollection in lineUVCollection)
|
||||
{
|
||||
double u = 0;
|
||||
var lineUIEles = uvCollection.UICollection.Keys.ToList();
|
||||
double linevV = isAdaptV ? adaptVLength : uvCollection.LineV;
|
||||
foreach (var child in lineUIEles)
|
||||
{
|
||||
UVLengthSize childSize = uvCollection.UICollection[child];
|
||||
|
||||
double layoutSlotU = childSize.UVSize.U + childSize.ULengthCount * adaptULength;
|
||||
double layoutSlotV = isAdaptV ? linevV : childSize.UVSize.V;
|
||||
if (ElasticWrapPanel.GetIsFixToRB(child) == false)
|
||||
{
|
||||
child.Arrange(new Rect(
|
||||
isHorizontal ? u : accumulatedV,
|
||||
isHorizontal ? accumulatedV : u,
|
||||
isHorizontal ? layoutSlotU : layoutSlotV,
|
||||
isHorizontal ? layoutSlotV : layoutSlotU));
|
||||
}
|
||||
else
|
||||
{
|
||||
if (itemSetSize.U > 0)
|
||||
{
|
||||
layoutSlotU = childSize.ULengthCount * itemSetSize.U +
|
||||
childSize.ULengthCount * adaptULength;
|
||||
double leaveULength = uvFinalSize.U - u;
|
||||
layoutSlotU = Min(leaveULength, layoutSlotU);
|
||||
}
|
||||
|
||||
child.Arrange(new Rect(
|
||||
isHorizontal ? Max(0, uvFinalSize.U - layoutSlotU) : accumulatedV,
|
||||
isHorizontal ? accumulatedV : Max(0, uvFinalSize.U - layoutSlotU),
|
||||
isHorizontal ? layoutSlotU : layoutSlotV,
|
||||
isHorizontal ? layoutSlotV : layoutSlotU));
|
||||
}
|
||||
|
||||
u += layoutSlotU;
|
||||
}
|
||||
|
||||
accumulatedV += linevV;
|
||||
lineUIEles.Clear();
|
||||
}
|
||||
}
|
||||
|
||||
lineUVCollection.ForEach(col => col.Dispose());
|
||||
lineUVCollection.Clear();
|
||||
return finalSize;
|
||||
}
|
||||
|
||||
#region Protected Methods
|
||||
|
||||
private struct UVSize
|
||||
{
|
||||
internal UVSize(Orientation orientation, double width, double height)
|
||||
{
|
||||
U = V = 0d;
|
||||
_orientation = orientation;
|
||||
Width = width;
|
||||
Height = height;
|
||||
}
|
||||
|
||||
internal UVSize(Orientation orientation)
|
||||
{
|
||||
U = V = 0d;
|
||||
_orientation = orientation;
|
||||
}
|
||||
|
||||
internal double U;
|
||||
internal double V;
|
||||
private Orientation _orientation;
|
||||
|
||||
internal double Width
|
||||
{
|
||||
get { return _orientation == Orientation.Horizontal ? U : V; }
|
||||
set
|
||||
{
|
||||
if (_orientation == Orientation.Horizontal) U = value;
|
||||
else V = value;
|
||||
}
|
||||
}
|
||||
|
||||
internal double Height
|
||||
{
|
||||
get { return _orientation == Orientation.Horizontal ? V : U; }
|
||||
set
|
||||
{
|
||||
if (_orientation == Orientation.Horizontal) V = value;
|
||||
else U = value;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private class UVLengthSize
|
||||
{
|
||||
public UVSize UVSize { get; set; }
|
||||
|
||||
public int ULengthCount { get; set; }
|
||||
|
||||
public UVLengthSize(UVSize uvSize, int uLengthCount)
|
||||
{
|
||||
this.UVSize = uvSize;
|
||||
this.ULengthCount = uLengthCount;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Elements used to store the same row/column
|
||||
/// </summary>
|
||||
private class UVCollection : IDisposable
|
||||
{
|
||||
public Dictionary<Control, UVLengthSize> UICollection { get; }
|
||||
|
||||
private UVSize LineDesireUVSize;
|
||||
|
||||
private UVSize ItemSetSize;
|
||||
|
||||
public UVCollection(Orientation orientation, UVSize itemSetSize)
|
||||
{
|
||||
UICollection = new Dictionary<Control, UVLengthSize>();
|
||||
LineDesireUVSize = new UVSize(orientation);
|
||||
ItemSetSize = itemSetSize;
|
||||
}
|
||||
|
||||
public double TotalU => LineDesireUVSize.U;
|
||||
|
||||
public double LineV => LineDesireUVSize.V;
|
||||
|
||||
public void Add(Control element, UVSize childSize, int itemULength = 1)
|
||||
{
|
||||
if (UICollection.ContainsKey(element))
|
||||
throw new InvalidOperationException("The element already exists and cannot be added repeatedly.");
|
||||
|
||||
UICollection[element] = new UVLengthSize(childSize, itemULength);
|
||||
LineDesireUVSize.U += childSize.U;
|
||||
LineDesireUVSize.V = Max(LineDesireUVSize.V, childSize.V);
|
||||
}
|
||||
|
||||
public int Count => UICollection.Count;
|
||||
|
||||
public void Dispose()
|
||||
{
|
||||
UICollection.Clear();
|
||||
}
|
||||
}
|
||||
|
||||
#endregion
|
||||
}
|
||||
Reference in New Issue
Block a user