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Merge pull request #4319 from Flow-Launcher/FreezeResources1

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Freeze SolidColorBrush to improve performance
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Jack Ye 2026-03-09 11:11:59 +08:00 committed by GitHub
commit 0ddcc5c1c6
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GPG key ID: B5690EEEBB952194
2 changed files with 39 additions and 24 deletions
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33
Flow.Launcher.Core/Resource/Theme.cs
View file

@ -673,13 +673,13 @@ namespace Flow.Launcher.Core.Resource
// If the BackdropType is Mica or MicaAlt, set the windowborderstyle's background to transparent
if (backdropType == BackdropTypes.Mica || backdropType == BackdropTypes.MicaAlt)
{
windowBorderStyle.Setters.Remove(windowBorderStyle.Setters.OfType<Setter>().FirstOrDefault(x => x.Property.Name == "Background"));
windowBorderStyle.Setters.Add(new Setter(Border.BackgroundProperty, new SolidColorBrush(Color.FromArgb(1, 0, 0, 0))));
windowBorderStyle.Setters.Remove(windowBorderStyle.Setters.OfType<Setter>().FirstOrDefault(x => x.Property == Control.BackgroundProperty));
windowBorderStyle.Setters.Add(new Setter(Border.BackgroundProperty, ThemeHelper.GetFrozenSolidColorBrush(Color.FromArgb(1, 0, 0, 0))));
}
else if (backdropType == BackdropTypes.Acrylic)
{
windowBorderStyle.Setters.Remove(windowBorderStyle.Setters.OfType<Setter>().FirstOrDefault(x => x.Property.Name == "Background"));
windowBorderStyle.Setters.Add(new Setter(Border.BackgroundProperty, new SolidColorBrush(Colors.Transparent)));
windowBorderStyle.Setters.Remove(windowBorderStyle.Setters.OfType<Setter>().FirstOrDefault(x => x.Property == Control.BackgroundProperty));
windowBorderStyle.Setters.Add(new Setter(Border.BackgroundProperty, Brushes.Transparent));
}
// For themes with blur enabled, the window border is rendered by the system, so it's treated as a simple rectangle regardless of thickness.
@ -798,12 +798,12 @@ namespace Flow.Launcher.Core.Resource
Application.Current.Resources["WindowBorderStyle"] is Style originalStyle)
{
// Copy the original style, including the base style if it exists
CopyStyle(originalStyle, previewStyle);
ThemeHelper.CopyStyle(originalStyle, previewStyle);
}
// Apply background color (remove transparency in color)
Color backgroundColor = Color.FromRgb(bgColor.Value.R, bgColor.Value.G, bgColor.Value.B);
previewStyle.Setters.Add(new Setter(Border.BackgroundProperty, new SolidColorBrush(backgroundColor)));
var backgroundColor = Color.FromRgb(bgColor.Value.R, bgColor.Value.G, bgColor.Value.B);
previewStyle.Setters.Add(new Setter(Border.BackgroundProperty, ThemeHelper.GetFrozenSolidColorBrush(backgroundColor)));
// The blur theme keeps the corner round fixed (applying DWM code to modify it causes rendering issues).
// The non-blur theme retains the previously set WindowBorderStyle.
@ -817,21 +817,6 @@ namespace Flow.Launcher.Core.Resource
Application.Current.Resources["PreviewWindowBorderStyle"] = previewStyle;
}
private void CopyStyle(Style originalStyle, Style targetStyle)
{
// If the style is based on another style, copy the base style first
if (originalStyle.BasedOn != null)
{
CopyStyle(originalStyle.BasedOn, targetStyle);
}
// Copy the setters from the original style
foreach (var setter in originalStyle.Setters.OfType<Setter>())
{
targetStyle.Setters.Add(new Setter(setter.Property, setter.Value));
}
}
private void ColorizeWindow(string theme, BackdropTypes backdropType)
{
var dict = GetThemeResourceDictionary(theme);
@ -917,11 +902,11 @@ namespace Flow.Launcher.Core.Resource
// Only set the background to transparent if the theme supports blur
if (backdropType == BackdropTypes.Mica || backdropType == BackdropTypes.MicaAlt)
{
mainWindow.Background = new SolidColorBrush(Color.FromArgb(1, 0, 0, 0));
mainWindow.Background = ThemeHelper.GetFrozenSolidColorBrush(Color.FromArgb(1, 0, 0, 0));
}
else
{
mainWindow.Background = new SolidColorBrush(selectedBG);
mainWindow.Background = ThemeHelper.GetFrozenSolidColorBrush(selectedBG);
}
}
}

30
Flow.Launcher.Core/Resource/ThemeHelper.cs Normal file
View file

@ -0,0 +1,30 @@
using System.Linq;
using System.Windows;
using System.Windows.Media;
namespace Flow.Launcher.Core.Resource;
public static class ThemeHelper
{
public static void CopyStyle(Style originalStyle, Style targetStyle)
{
// If the style is based on another style, copy the base style first
if (originalStyle.BasedOn != null)
{
CopyStyle(originalStyle.BasedOn, targetStyle);
}
// Copy the setters from the original style
foreach (var setter in originalStyle.Setters.OfType<Setter>())
{
targetStyle.Setters.Add(new Setter(setter.Property, setter.Value));
}
}
public static SolidColorBrush GetFrozenSolidColorBrush(Color color)
{
var brush = new SolidColorBrush(color);
brush.Freeze();
return brush;
}
}