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add:i18n

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CJKmkp
2026-03-04 10:25:25 +08:00
parent b67476ae19
commit e29b4f3ff3
2 changed files with 223 additions and 126 deletions
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Ink Canvas/Helpers/AutoFontSizeHelper.cs
+178 -111
View File
@@ -5,22 +5,13 @@ using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Threading;
using System.Windows.Markup;
using System.Windows.Media.TextFormatting;
using System.Windows.Media.Imaging;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Shapes;
using System.Windows.Data;
using System.Windows.Ink;
using System.Windows.Interop;
using System.Windows.Media.Animation;
using System.Windows.Navigation;
namespace Ink_Canvas.Helpers
{
/// <summary>
/// 让 TextBlock 在可用宽度不足时自动缩小字号（只缩小不放大），用于避免英文等长文本被截断。
/// Automatically shrinks text to fit available width.
/// Supports TextBlock and Label.
/// Only shrinks, never enlarges above MaxFontSize.
/// </summary>
public static class AutoFontSizeHelper
{
@@ -76,170 +67,247 @@ namespace Ink_Canvas.Helpers
private static void OnIsEnabledChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var tb = d as TextBlock;
if (tb == null) return;
if (!(d is FrameworkElement fe)) return;
if (!(fe is TextBlock) && !(fe is Label)) return;
if ((bool)e.NewValue)
{
tb.SizeChanged += TextBlock_OnSizeChanged;
tb.Loaded += TextBlock_OnLoaded;
tb.Unloaded += TextBlock_OnUnloaded;
fe.SizeChanged += Element_OnSizeChanged;
fe.Loaded += Element_OnLoaded;
fe.Unloaded += Element_OnUnloaded;
TryHookContentChanged(fe, true);
try
{
var dpd = DependencyPropertyDescriptor.FromProperty(TextBlock.TextProperty, typeof(TextBlock));
dpd?.AddValueChanged(tb, TextBlock_OnTextChanged);
}
catch
{
// 忽略：极端情况下 descriptor 可能不可用
}
// 让第一次布局完成后再做一次调整（避免 ActualWidth=0）
tb.Dispatcher.BeginInvoke(new Action(() => TryAdjust(tb)), DispatcherPriority.Loaded);
fe.Dispatcher.BeginInvoke(new Action(() => TryAdjust(fe)), DispatcherPriority.Loaded);
}
else
{
tb.SizeChanged -= TextBlock_OnSizeChanged;
tb.Loaded -= TextBlock_OnLoaded;
tb.Unloaded -= TextBlock_OnUnloaded;
try
{
var dpd = DependencyPropertyDescriptor.FromProperty(TextBlock.TextProperty, typeof(TextBlock));
dpd?.RemoveValueChanged(tb, TextBlock_OnTextChanged);
}
catch
{
}
fe.SizeChanged -= Element_OnSizeChanged;
fe.Loaded -= Element_OnLoaded;
fe.Unloaded -= Element_OnUnloaded;
TryHookContentChanged(fe, false);
}
}
private static void OnSizingPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
if (d is TextBlock tb && GetIsEnabled(tb))
if (d is FrameworkElement fe && GetIsEnabled(fe))
{
tb.Dispatcher.BeginInvoke(new Action(() => TryAdjust(tb)), DispatcherPriority.Loaded);
fe.Dispatcher.BeginInvoke(new Action(() => TryAdjust(fe)), DispatcherPriority.Loaded);
}
}
private static void TextBlock_OnLoaded(object sender, RoutedEventArgs e)
private static void Element_OnLoaded(object sender, RoutedEventArgs e)
{
if (sender is TextBlock tb) tb.Dispatcher.BeginInvoke(new Action(() => TryAdjust(tb)), DispatcherPriority.Loaded);
}
private static void TextBlock_OnUnloaded(object sender, RoutedEventArgs e)
{
// 这里不做额外处理；事件解绑由 IsEnabled 关闭或对象销毁处理
}
private static void TextBlock_OnSizeChanged(object sender, SizeChangedEventArgs e)
{
if (sender is TextBlock tb) TryAdjust(tb);
}
private static void TextBlock_OnTextChanged(object sender, EventArgs e)
{
if (sender is TextBlock tb) tb.Dispatcher.BeginInvoke(new Action(() => TryAdjust(tb)), DispatcherPriority.Loaded);
}
private static void TryAdjust(TextBlock tb)
{
if (tb == null) return;
if (!GetIsEnabled(tb)) return;
if (GetIsAdjusting(tb)) return;
// 没有可用宽度时跳过
var availableWidth = tb.ActualWidth;
if (double.IsNaN(availableWidth) || availableWidth <= 1) return;
// 文本为空时不需要调整
var text = tb.Text;
if (string.IsNullOrEmpty(text)) return;
var min = GetMinFontSize(tb);
if (double.IsNaN(min) || min <= 0) min = 6d;
var step = GetStep(tb);
if (double.IsNaN(step) || step <= 0.01) step = 0.5d;
var max = GetMaxFontSize(tb);
if (double.IsNaN(max) || max <= 0)
if (sender is FrameworkElement fe)
{
max = tb.FontSize;
fe.Dispatcher.BeginInvoke(new Action(() => TryAdjust(fe)), DispatcherPriority.Loaded);
}
}
if (double.IsNaN(max) || max <= 0) return;
private static void Element_OnUnloaded(object sender, RoutedEventArgs e)
{
// No extra cleanup required here.
}
// 只做“缩小不放大”
var startFont = Math.Min(tb.FontSize, max);
if (startFont < min) startFont = min;
private static void Element_OnSizeChanged(object sender, SizeChangedEventArgs e)
{
if (sender is FrameworkElement fe) TryAdjust(fe);
}
SetIsAdjusting(tb, true);
private static void Element_OnTextChanged(object sender, EventArgs e)
{
if (sender is FrameworkElement fe)
{
fe.Dispatcher.BeginInvoke(new Action(() => TryAdjust(fe)), DispatcherPriority.Loaded);
}
}
private static void TryHookContentChanged(FrameworkElement fe, bool add)
{
try
{
// 如果当前已合适，直接回到 max（但不超过原本 fontSize），避免之前缩小后再变短不恢复
// 注意：恢复也只在不超过 max 的范围内
var desiredAtMax = MeasureTextWidth(tb, text, max);
DependencyPropertyDescriptor dpd = null;
if (fe is TextBlock)
{
dpd = DependencyPropertyDescriptor.FromProperty(TextBlock.TextProperty, typeof(TextBlock));
}
else if (fe is Label)
{
dpd = DependencyPropertyDescriptor.FromProperty(ContentControl.ContentProperty, typeof(ContentControl));
}
if (dpd == null) return;
if (add) dpd.AddValueChanged(fe, Element_OnTextChanged);
else dpd.RemoveValueChanged(fe, Element_OnTextChanged);
}
catch
{
// Ignore descriptor issues in rare runtime cases.
}
}
private static void TryAdjust(FrameworkElement fe)
{
if (fe == null) return;
if (!GetIsEnabled(fe)) return;
if (GetIsAdjusting(fe)) return;
var text = GetElementText(fe);
if (string.IsNullOrEmpty(text)) return;
var availableWidth = GetAvailableWidth(fe);
if (double.IsNaN(availableWidth) || availableWidth <= 1) return;
var min = GetMinFontSize(fe);
if (double.IsNaN(min) || min <= 0) min = 6d;
var step = GetStep(fe);
if (double.IsNaN(step) || step < 0.1) step = 0.5d;
var current = GetElementFontSize(fe);
if (double.IsNaN(current) || current <= 0) return;
var max = GetMaxFontSize(fe);
if (double.IsNaN(max) || max <= 0) max = current;
var startFont = Math.Min(current, max);
if (startFont < min) startFont = min;
SetIsAdjusting(fe, true);
try
{
var desiredAtMax = MeasureTextWidth(fe, text, max);
if (desiredAtMax > 0 && desiredAtMax <= availableWidth + 0.5)
{
if (tb.FontSize != max) tb.FontSize = max;
if (Math.Abs(current - max) > 0.01) SetElementFontSize(fe, max);
return;
}
double font = startFont;
double desired = MeasureTextWidth(tb, text, font);
var font = startFont;
var desired = MeasureTextWidth(fe, text, font);
if (desired <= 0) return;
// 逐步减小直到适配或触底
while (font > min && desired > availableWidth + 0.5)
{
font = Math.Max(min, font - step);
desired = MeasureTextWidth(tb, text, font);
desired = MeasureTextWidth(fe, text, font);
if (desired <= 0) break;
}
if (!double.IsNaN(font) && font > 0 && Math.Abs(tb.FontSize - font) > 0.01)
if (!double.IsNaN(font) && font > 0 && Math.Abs(current - font) > 0.01)
{
tb.FontSize = font;
SetElementFontSize(fe, font);
}
}
finally
{
SetIsAdjusting(tb, false);
SetIsAdjusting(fe, false);
}
}
private static double MeasureTextWidth(TextBlock tb, string text, double fontSize)
private static string GetElementText(FrameworkElement fe)
{
if (fe is TextBlock tb) return tb.Text;
if (fe is Label label) return label.Content as string ?? label.Content?.ToString();
return null;
}
private static double GetElementFontSize(FrameworkElement fe)
{
if (fe is TextBlock tb) return tb.FontSize;
if (fe is Label label) return label.FontSize;
return double.NaN;
}
private static void SetElementFontSize(FrameworkElement fe, double value)
{
if (fe is TextBlock tb) tb.FontSize = value;
else if (fe is Label label) label.FontSize = value;
}
private static double GetAvailableWidth(FrameworkElement fe)
{
double width = double.PositiveInfinity;
if (fe.ActualWidth > 1) width = Math.Min(width, fe.ActualWidth);
if (fe.Parent is FrameworkElement parent && parent.ActualWidth > 1)
{
var parentWidth = parent.ActualWidth - fe.Margin.Left - fe.Margin.Right;
if (parentWidth > 1) width = Math.Min(width, parentWidth);
}
if (double.IsInfinity(width) || double.IsNaN(width) || width <= 1) return -1;
// Keep width as inner text area.
if (fe is Control control)
{
width -= control.Padding.Left + control.Padding.Right;
width -= control.BorderThickness.Left + control.BorderThickness.Right;
}
else if (fe is Border border)
{
width -= border.Padding.Left + border.Padding.Right;
width -= border.BorderThickness.Left + border.BorderThickness.Right;
}
return width;
}
private static double MeasureTextWidth(FrameworkElement fe, string text, double fontSize)
{
try
{
var dpi = VisualTreeHelper.GetDpi(tb);
var dpi = VisualTreeHelper.GetDpi(fe);
var culture = CultureInfo.CurrentUICulture;
// 使用 TextBlock 自身的语言/流向
if (tb.Language != null)
if (fe.Language != null)
{
try
{
culture = tb.Language.GetEquivalentCulture();
culture = fe.Language.GetEquivalentCulture();
}
catch
{
}
}
var typeface = new Typeface(tb.FontFamily, tb.FontStyle, tb.FontWeight, tb.FontStretch);
var fontFamily = SystemFonts.MessageFontFamily;
var fontStyle = FontStyles.Normal;
var fontWeight = FontWeights.Normal;
var fontStretch = FontStretches.Normal;
Brush foreground = Brushes.Black;
var flowDirection = FlowDirection.LeftToRight;
if (fe is TextBlock tb)
{
fontFamily = tb.FontFamily;
fontStyle = tb.FontStyle;
fontWeight = tb.FontWeight;
fontStretch = tb.FontStretch;
foreground = tb.Foreground;
flowDirection = tb.FlowDirection;
}
else if (fe is Label label)
{
fontFamily = label.FontFamily;
fontStyle = label.FontStyle;
fontWeight = label.FontWeight;
fontStretch = label.FontStretch;
foreground = label.Foreground;
flowDirection = label.FlowDirection;
}
var typeface = new Typeface(fontFamily, fontStyle, fontWeight, fontStretch);
var formatted = new FormattedText(
text,
culture,
tb.FlowDirection,
flowDirection,
typeface,
fontSize,
tb.Foreground,
foreground,
dpi.PixelsPerDip);
// 这里用包含尾随空白的宽度更接近实际布局
return formatted.WidthIncludingTrailingWhitespace;
}
catch
@@ -249,4 +317,3 @@ namespace Ink_Canvas.Helpers
}
}
}
Ink Canvas/MainWindow.xaml
+45 -15
View File
@@ -71,9 +71,26 @@
<Setter Property="TextWrapping" Value="NoWrap" />
<Setter Property="TextAlignment" Value="Center" />
<Setter Property="helpers:AutoFontSizeHelper.IsEnabled" Value="True" />
<Setter Property="helpers:AutoFontSizeHelper.MinFontSize" Value="5" />
<Setter Property="helpers:AutoFontSizeHelper.MinFontSize" Value="4" />
<Setter Property="helpers:AutoFontSizeHelper.MaxFontSize" Value="8" />
<Setter Property="helpers:AutoFontSizeHelper.Step" Value="0.5" />
<Setter Property="helpers:AutoFontSizeHelper.Step" Value="0.25" />
</Style>
<Style x:Key="AutoFitMainToolbarLabel8" TargetType="TextBlock" BasedOn="{StaticResource AutoFitFloatBarLabel8}">
<Setter Property="Height" Value="10" />
<Setter Property="LineStackingStrategy" Value="BlockLineHeight" />
<Setter Property="LineHeight" Value="10" />
</Style>
<Style x:Key="AutoFitToolPopupLabel8" TargetType="Label">
<Setter Property="Padding" Value="0" />
<Setter Property="HorizontalContentAlignment" Value="Center" />
<Setter Property="VerticalContentAlignment" Value="Center" />
<Setter Property="Foreground" Value="{DynamicResource FloatBarForeground}" />
<Setter Property="helpers:AutoFontSizeHelper.IsEnabled" Value="True" />
<Setter Property="helpers:AutoFontSizeHelper.MinFontSize" Value="3.5" />
<Setter Property="helpers:AutoFontSizeHelper.MaxFontSize" Value="8" />
<Setter Property="helpers:AutoFontSizeHelper.Step" Value="0.25" />
</Style>
<!-- Navigation Button Style -->
@@ -6840,6 +6857,9 @@
</Border>
<!---->
<ui:SimpleStackPanel Margin="10,3,10,2" Spacing="-2">
<ui:SimpleStackPanel.Resources>
<Style TargetType="Label" BasedOn="{StaticResource AutoFitToolPopupLabel8}" />
</ui:SimpleStackPanel.Resources>
<ui:SimpleStackPanel Margin="0,0,0,0" Height="40" Spacing="0"
Orientation="Horizontal">
<ui:SimpleStackPanel MouseDown="Border_MouseDown"
@@ -7786,7 +7806,8 @@
</Image>
<TextBlock x:Name="SelectionToolBarTextBlock" Text="{i18n:I18n Key=FloatingBar_Mouse}" Foreground="{DynamicResource FloatBarForeground}"
FontSize="8"
Margin="0,1,0,0" TextAlignment="Center" />
Margin="0,1,0,0" TextAlignment="Center"
Style="{StaticResource AutoFitMainToolbarLabel8}" />
</ui:SimpleStackPanel>
<ui:SimpleStackPanel Name="Pen_Icon"
MouseDown="FloatingBarToolBtnMouseDownFeedback_Panel"
@@ -7808,7 +7829,8 @@
</Image.Source>
</Image>
<TextBlock x:Name="PenToolbarTextBlock" Text="{i18n:I18n Key=FloatingBar_Annotate}" Foreground="{DynamicResource FloatBarForeground}" FontSize="8"
Margin="0,1,0,0" TextAlignment="Center" />
Margin="0,1,0,0" TextAlignment="Center"
Style="{StaticResource AutoFitMainToolbarLabel8}" />
</ui:SimpleStackPanel>
<!-- 快捷调色盘 - 双行显示模式 -->
@@ -8403,7 +8425,8 @@
</Image.Source>
</Image>
<TextBlock x:Name="TrashBinToolbarTextBlock" Text="{i18n:I18n Key=FloatingBar_Clear}" Foreground="{DynamicResource RedBrush}"
FontWeight="Bold" FontSize="8" Margin="0,1,0,0" TextAlignment="Center" />
FontWeight="Bold" FontSize="8" Margin="0,1,0,0" TextAlignment="Center"
Style="{StaticResource AutoFitMainToolbarLabel8}" />
</ui:SimpleStackPanel>
<ui:SimpleStackPanel Name="StackPanelCanvasControls" Visibility="Visible"
Orientation="{Binding ElementName=StackPanelFloatingBar, Path=Orientation}">
@@ -9228,7 +9251,8 @@
</Image.Source>
</Image>
<TextBlock x:Name="CircleEraserToolbarTextBlock" Text="{i18n:I18n Key=FloatingBar_AreaEraser}" Foreground="{DynamicResource FloatBarForeground}"
FontSize="8" Margin="0,1,0,0" TextAlignment="Center" />
FontSize="8" Margin="0,1,0,0" TextAlignment="Center"
Style="{StaticResource AutoFitMainToolbarLabel8}" />
</ui:SimpleStackPanel>
<ui:SimpleStackPanel Name="EraserByStrokes_Icon"
MouseDown="FloatingBarToolBtnMouseDownFeedback_Panel"
@@ -9251,7 +9275,8 @@
</Image.Source>
</Image>
<TextBlock x:Name="InkEraserToolbarTextBlock" Text="{i18n:I18n Key=FloatingBar_StrokeEraser}" Foreground="{DynamicResource FloatBarForeground}"
FontSize="8" Margin="0,1,0,0" TextAlignment="Center" />
FontSize="8" Margin="0,1,0,0" TextAlignment="Center"
Style="{StaticResource AutoFitMainToolbarLabel8}" />
</ui:SimpleStackPanel>
<ui:SimpleStackPanel Name="SymbolIconSelect"
MouseDown="FloatingBarToolBtnMouseDownFeedback_Panel"
@@ -9273,7 +9298,8 @@
</Image.Source>
</Image>
<TextBlock x:Name="LassoToolToolbarTextBlock" Text="{i18n:I18n Key=FloatingBar_LassoSelect}" Foreground="{DynamicResource FloatBarForeground}"
FontSize="8" Margin="0,1,0,0" TextAlignment="Center" />
FontSize="8" Margin="0,1,0,0" TextAlignment="Center"
Style="{StaticResource AutoFitMainToolbarLabel8}" />
</ui:SimpleStackPanel>
<ui:SimpleStackPanel
Name="ShapeDrawFloatingBarBtn"
@@ -9297,7 +9323,8 @@
</Image.Source>
</Image>
<TextBlock x:Name="ShapesToolbarTextBlock" Text="{i18n:I18n Key=FloatingBar_Geometry}" Foreground="{DynamicResource FloatBarForeground}"
FontSize="8" Margin="0,1,0,0" TextAlignment="Center" />
FontSize="8" Margin="0,1,0,0" TextAlignment="Center"
Style="{StaticResource AutoFitMainToolbarLabel8}" />
</ui:SimpleStackPanel>
<Grid Width="0">
@@ -9573,7 +9600,7 @@
Opacity="{Binding ElementName=BtnUndo, Path=IsEnabled, Converter={StaticResource IsEnabledToOpacityConverter}}"
Foreground="{DynamicResource FloatBarForeground}" FontSize="8" Margin="0,1,0,0"
TextAlignment="Center"
Style="{StaticResource AutoFitFloatBarLabel8}" />
Style="{StaticResource AutoFitMainToolbarLabel8}" />
</ui:SimpleStackPanel>
<ui:SimpleStackPanel
Name="SymbolIconRedo"
@@ -9602,7 +9629,7 @@
Opacity="{Binding ElementName=BtnRedo, Path=IsEnabled, Converter={StaticResource IsEnabledToOpacityConverter}}"
Foreground="{DynamicResource FloatBarForeground}" FontSize="8" Margin="0,1,0,0"
TextAlignment="Center"
Style="{StaticResource AutoFitFloatBarLabel8}" />
Style="{StaticResource AutoFitMainToolbarLabel8}" />
</ui:SimpleStackPanel>
<ui:SimpleStackPanel
Name="CursorWithDelFloatingBarBtn"
@@ -9626,7 +9653,7 @@
</Image>
<TextBlock x:Name="ClearAndMouseToolbarTextBlock" Text="{i18n:I18n Key=FloatingBar_ClearAndMouse}" Foreground="{DynamicResource FloatBarForeground}"
FontSize="8" Margin="0,1,0,0" TextAlignment="Center"
Style="{StaticResource AutoFitFloatBarLabel8}" />
Style="{StaticResource AutoFitMainToolbarLabel8}" />
</ui:SimpleStackPanel>
</ui:SimpleStackPanel>
<Grid Width="0">
@@ -9790,7 +9817,7 @@
</Image>
<TextBlock x:Name="WhiteboardToolbarTextBlock" Text="{i18n:I18n Key=FloatingBar_Whiteboard}" Foreground="{DynamicResource FloatBarForeground}"
FontSize="8" Margin="0,1,0,0" TextAlignment="Center"
Style="{StaticResource AutoFitFloatBarLabel8}" />
Style="{StaticResource AutoFitMainToolbarLabel8}" />
</ui:SimpleStackPanel>
<ui:SimpleStackPanel
Name="ToolsFloatingBarBtn"
@@ -9815,7 +9842,7 @@
<TextBlock x:Name="ToolsToolbarTextBlock" Text="{i18n:I18n Key=Board_Tools}" Foreground="{DynamicResource FloatBarForeground}"
FontSize="8"
Margin="0,1,0,0" TextAlignment="Center"
Style="{StaticResource AutoFitFloatBarLabel8}" />
Style="{StaticResource AutoFitMainToolbarLabel8}" />
</ui:SimpleStackPanel>
<ui:SimpleStackPanel
x:Name="Fold_Icon"
@@ -9840,7 +9867,7 @@
<TextBlock x:Name="HideToolbarTextBlock" Text="{i18n:I18n Key=FloatingBar_Hide}" Foreground="{DynamicResource FloatBarForeground}"
FontSize="8"
Margin="0,1,0,0" TextAlignment="Center"
Style="{StaticResource AutoFitFloatBarLabel8}" />
Style="{StaticResource AutoFitMainToolbarLabel8}" />
</ui:SimpleStackPanel>
<Grid Width="0">
<Border ClipToBounds="True" Name="BorderTools" Margin="-103,-156,-16,37"
@@ -9865,6 +9892,9 @@
</Border>
<!---->
<ui:SimpleStackPanel Margin="10,3,10,2" Spacing="-2">
<ui:SimpleStackPanel.Resources>
<Style TargetType="Label" BasedOn="{StaticResource AutoFitToolPopupLabel8}" />
</ui:SimpleStackPanel.Resources>
<ui:SimpleStackPanel Margin="0,0,0,0" Height="40" Spacing="0"
Orientation="Horizontal">
<ui:SimpleStackPanel MouseDown="Border_MouseDown"