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ArieldelossantosArieldelossantos
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fix(Cupertino): add CupertinoTheme class
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‎src/library/Uno.Cupertino/CupertinoTheme.cs

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using System;
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using System.Collections.Generic;
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using System.Linq;
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#if WinUI
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using Microsoft.UI;
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using Microsoft.UI.Xaml;
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using Microsoft.UI.Xaml.Controls;
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using Microsoft.UI.Xaml.Controls.Primitives;
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using Microsoft.UI.Xaml.Media;
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#else
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using Windows.UI;
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using Windows.UI.Xaml;
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using Windows.UI.Xaml.Controls;
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using Windows.UI.Xaml.Controls.Primitives;
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using Windows.UI.Xaml.Data;
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using Windows.UI.Xaml.Media;
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#endif
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namespace Uno.Cupertino
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{
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public class CupertinoTheme : ResourceDictionary
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{
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private bool _isColorOverrideMuted;
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private bool _isFontOverrideMuted;
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#region FontOverrideSource (DP)
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/// <summary>
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/// (Optional) Gets or sets a Uniform Resource Identifier (<see cref="Uri"/>) that provides the source location
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/// of a <see cref="ResourceDictionary"/> containing overrides for the default Uno.Cupertino <see cref="FontFamily"/> resources
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/// </summary>
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public string FontOverrideSource
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{
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get => (string)GetValue(FontOverrideSourceProperty);
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set => SetValue(FontOverrideSourceProperty, value);
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}
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public static DependencyProperty FontOverrideSourceProperty { get; } =
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DependencyProperty.Register(
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nameof(FontOverrideSource),
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typeof(string),
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typeof(CupertinoTheme),
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new PropertyMetadata(null, OnFontOverrideSourceChanged));
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private static void OnFontOverrideSourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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if (d is CupertinoTheme theme && e.NewValue is string sourceUri)
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{
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theme.FontOverrideDictionary = new ResourceDictionary() { Source = new Uri(sourceUri) };
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}
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}
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#endregion
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#region ColorOverrideSource (DP)
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/// <summary>
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/// (Optional) Gets or sets a Uniform Resource Identifier (<see cref="Uri"/>) that provides the source location
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/// of a <see cref="ResourceDictionary"/> containing overrides for the default Uno.Cupertino <see cref="Color"/> resources
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/// </summary>
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/// <remarks>The overrides set here should be re-defining the <see cref="Color"/> resources used by Uno.Cupertino, not the <see cref="SolidColorBrush"/> resources</remarks>
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public string ColorOverrideSource
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{
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get => (string)GetValue(ColorOverrideSourceProperty);
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set => SetValue(ColorOverrideSourceProperty, value);
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}
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public static DependencyProperty ColorOverrideSourceProperty { get; } =
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DependencyProperty.Register(
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nameof(ColorOverrideSource),
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typeof(string),
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typeof(CupertinoTheme),
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new PropertyMetadata(null, OnColorOverrideSourceChanged));
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private static void OnColorOverrideSourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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if (d is CupertinoTheme theme && e.NewValue is string sourceUri)
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{
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theme.ColorOverrideDictionary = new ResourceDictionary() { Source = new Uri(sourceUri) };
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}
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}
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#endregion
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#region FontOverrideDictionary (DP)
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/// <summary>
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/// (Optional) Gets or sets a <see cref="ResourceDictionary"/> containing overrides for the default Uno.Cupertino <see cref="FontFamily"/> resources
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/// </summary>
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public ResourceDictionary FontOverrideDictionary
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{
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get => (ResourceDictionary)GetValue(FontOverrideDictionaryProperty);
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set => SetValue(FontOverrideDictionaryProperty, value);
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}
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public static DependencyProperty FontOverrideDictionaryProperty { get; } =
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DependencyProperty.Register(
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nameof(FontOverrideDictionary),
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typeof(ResourceDictionary),
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typeof(CupertinoTheme),
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new PropertyMetadata(null, OnFontOverrideChanged));
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private static void OnFontOverrideChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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if (d is CupertinoTheme { _isFontOverrideMuted: false } theme)
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{
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theme.UpdateSource();
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}
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}
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#endregion
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#region ColorOverrideDictionary (DP)
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/// <summary>
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/// (Optional) Gets or sets a <see cref="ResourceDictionary"/> containing overrides for the default Uno.Cupertino <see cref="Color"/> resources
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/// </summary>
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/// <remarks>The overrides set here should be re-defining the <see cref="Color"/> resources used by Uno.Cupertino, not the <see cref="SolidColorBrush"/> resources</remarks>
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public ResourceDictionary ColorOverrideDictionary
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{
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get => (ResourceDictionary)GetValue(ColorOverrideDictionaryProperty);
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set => SetValue(ColorOverrideDictionaryProperty, value);
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}
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public static DependencyProperty ColorOverrideDictionaryProperty { get; } =
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DependencyProperty.Register(
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nameof(ColorOverrideDictionary),
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typeof(ResourceDictionary),
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typeof(CupertinoTheme),
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new PropertyMetadata(null, OnColorOverrideChanged));
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private static void OnColorOverrideChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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if (d is CupertinoTheme { _isColorOverrideMuted: false } theme)
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{
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theme.UpdateSource();
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}
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}
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#endregion
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public CupertinoTheme() : this(colorOverride: null, fontOverride: null)
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{
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}
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public CupertinoTheme(ResourceDictionary colorOverride = null, ResourceDictionary fontOverride = null)
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{
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if (colorOverride is { })
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{
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SetColorOverrideSilently(colorOverride);
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}
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if (fontOverride is { })
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{
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SetFontOverrideSilently(fontOverride);
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}
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UpdateSource();
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}
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private void SetColorOverrideSilently(ResourceDictionary colorOverride)
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{
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try
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{
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_isColorOverrideMuted = true;
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ColorOverrideDictionary = colorOverride;
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}
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finally
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{
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_isColorOverrideMuted = false;
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}
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}
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private void SetFontOverrideSilently(ResourceDictionary fontOverride)
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{
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try
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{
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_isFontOverrideMuted = true;
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FontOverrideDictionary = fontOverride;
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}
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finally
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{
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_isFontOverrideMuted = false;
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}
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}
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private void UpdateSource()
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{
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#if !HAS_UNO
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Source = null;
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#endif
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ThemeDictionaries.Clear();
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MergedDictionaries.Clear();
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this.Clear();
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var colors = new ResourceDictionary { Source = new Uri("ms-appx:///Uno.Cupertino/Styles/Application/ColorPalette.xaml") };
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colors.MergedDictionaries.Add(new ResourceDictionary { Source = new Uri("ms-appx:///Uno.Cupertino/Styles/Application/CupertinoColors.xaml") });
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if (ColorOverrideDictionary is { } colorOverride)
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{
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colors.MergedDictionaries
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#if !HAS_UNO
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.Add(colorOverride.Duplicate());
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#else
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.Add(colorOverride);
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#endif
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}
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var mergedPages = new ResourceDictionary { Source = new Uri("ms-appx:///Uno.Cupertino/Generated/mergedpages.xaml") };
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var fonts = new ResourceDictionary { Source = new Uri("ms-appx:///Uno.Cupertino/Styles/Application/Fonts.xaml") };
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if (FontOverrideDictionary is { } fontOverride)
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{
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fonts.MergedDictionaries
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#if !HAS_UNO
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.Add(fontOverride.Duplicate());
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#else
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.Add(fontOverride);
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#endif
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}
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mergedPages.MergedDictionaries.Add(colors);
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mergedPages.MergedDictionaries.Add(fonts);
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MergedDictionaries.Add(mergedPages);
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}
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}
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}

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