PowerToys/Wox.Core/Theme/Theme.cs
bao-qian 38791e50ea Refactoring blur
1. Refactoring blur, see discussion in : 7f8bb80
2. Releated issue: #330
2015-11-29 06:29:32 +00:00

205 lines
7.9 KiB
C#

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Interop;
using System.Windows.Media;
using Wox.Core.UI;
using Wox.Core.UserSettings;
using Wox.Infrastructure.Logger;
namespace Wox.Core.Theme
{
public class Theme : IUIResource
{
public const string DirectoryName = "Themes";
private static List<string> themeDirectories = new List<string>();
static Theme()
{
themeDirectories.Add(Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), DirectoryName));
MakesureThemeDirectoriesExist();
}
private static void MakesureThemeDirectoriesExist()
{
foreach (string pluginDirectory in themeDirectories)
{
if (!Directory.Exists(pluginDirectory))
{
try
{
Directory.CreateDirectory(pluginDirectory);
}
catch (System.Exception e)
{
Log.Error(e);
}
}
}
}
public void ChangeTheme(string themeName)
{
string themePath = GetThemePath(themeName);
if (string.IsNullOrEmpty(themePath))
{
themePath = GetThemePath("Dark");
if (string.IsNullOrEmpty(themePath))
{
throw new System.Exception("Change theme failed");
}
}
UserSettingStorage.Instance.Theme = themeName;
UserSettingStorage.Instance.Save();
ResourceMerger.UpdateResource(this);
try
{
var isBlur = Application.Current.FindResource("ThemeBlurEnabled");
if (isBlur is bool)
{
SetBlurForWindow(Application.Current.MainWindow, (bool)isBlur);
}
}
catch (ResourceReferenceKeyNotFoundException e)
{
}
}
public ResourceDictionary GetResourceDictionary()
{
var dict = new ResourceDictionary
{
Source = new Uri(GetThemePath(UserSettingStorage.Instance.Theme), UriKind.Absolute)
};
Style queryBoxStyle = dict["QueryBoxStyle"] as Style;
if (queryBoxStyle != null)
{
queryBoxStyle.Setters.Add(new Setter(TextBox.FontFamilyProperty, new FontFamily(UserSettingStorage.Instance.QueryBoxFont)));
queryBoxStyle.Setters.Add(new Setter(TextBox.FontStyleProperty, FontHelper.GetFontStyleFromInvariantStringOrNormal(UserSettingStorage.Instance.QueryBoxFontStyle)));
queryBoxStyle.Setters.Add(new Setter(TextBox.FontWeightProperty, FontHelper.GetFontWeightFromInvariantStringOrNormal(UserSettingStorage.Instance.QueryBoxFontWeight)));
queryBoxStyle.Setters.Add(new Setter(TextBox.FontStretchProperty, FontHelper.GetFontStretchFromInvariantStringOrNormal(UserSettingStorage.Instance.QueryBoxFontStretch)));
}
Style resultItemStyle = dict["ItemTitleStyle"] as Style;
Style resultSubItemStyle = dict["ItemSubTitleStyle"] as Style;
Style resultItemSelectedStyle = dict["ItemTitleSelectedStyle"] as Style;
Style resultSubItemSelectedStyle = dict["ItemSubTitleSelectedStyle"] as Style;
if (resultItemStyle != null && resultSubItemStyle != null && resultSubItemSelectedStyle != null && resultItemSelectedStyle != null)
{
Setter fontFamily = new Setter(TextBlock.FontFamilyProperty, new FontFamily(UserSettingStorage.Instance.ResultItemFont));
Setter fontStyle = new Setter(TextBlock.FontStyleProperty, FontHelper.GetFontStyleFromInvariantStringOrNormal(UserSettingStorage.Instance.ResultItemFontStyle));
Setter fontWeight = new Setter(TextBlock.FontWeightProperty, FontHelper.GetFontWeightFromInvariantStringOrNormal(UserSettingStorage.Instance.ResultItemFontWeight));
Setter fontStretch = new Setter(TextBlock.FontStretchProperty, FontHelper.GetFontStretchFromInvariantStringOrNormal(UserSettingStorage.Instance.ResultItemFontStretch));
Setter[] setters = new Setter[] { fontFamily, fontStyle, fontWeight, fontStretch };
Array.ForEach(new Style[] { resultItemStyle, resultSubItemStyle, resultItemSelectedStyle, resultSubItemSelectedStyle }, o => Array.ForEach(setters, p => o.Setters.Add(p)));
}
return dict;
}
public List<string> LoadAvailableThemes()
{
List<string> themes = new List<string>();
foreach (var themeDirectory in themeDirectories)
{
themes.AddRange(
Directory.GetFiles(themeDirectory)
.Where(filePath => filePath.EndsWith(".xaml") && !filePath.EndsWith("Base.xaml"))
.ToList());
}
return themes.OrderBy(o => o).ToList();
}
private string GetThemePath(string themeName)
{
foreach (string themeDirectory in themeDirectories)
{
string path = Path.Combine(themeDirectory, themeName + ".xaml");
if (File.Exists(path))
{
return path;
}
}
return string.Empty;
}
#region Blur Handling
/*
Found on https://github.com/riverar/sample-win10-aeroglass
*/
public enum AccentState
{
ACCENT_DISABLED = 0,
ACCENT_ENABLE_GRADIENT = 1,
ACCENT_ENABLE_TRANSPARENTGRADIENT = 2,
ACCENT_ENABLE_BLURBEHIND = 3,
ACCENT_INVALID_STATE = 4
}
[StructLayout(LayoutKind.Sequential)]
internal struct AccentPolicy
{
public AccentState AccentState;
public int AccentFlags;
public int GradientColor;
public int AnimationId;
}
[StructLayout(LayoutKind.Sequential)]
internal struct WindowCompositionAttributeData
{
public WindowCompositionAttribute Attribute;
public IntPtr Data;
public int SizeOfData;
}
internal enum WindowCompositionAttribute
{
WCA_ACCENT_POLICY = 19
}
[DllImport("user32.dll")]
private static extern int SetWindowCompositionAttribute(IntPtr hwnd, ref WindowCompositionAttributeData data);
/// <summary>
/// Sets the blur for a window via SetWindowCompositionAttribute
/// </summary>
/// <param name="wind">window to blur</param>
/// <param name="status">true/false - on or off correspondingly</param>
public void SetBlurForWindow(Window wind, bool status)
{
SetWindowAccent(wind, status ? AccentState.ACCENT_ENABLE_BLURBEHIND : AccentState.ACCENT_DISABLED);
}
private void SetWindowAccent(Window wind, AccentState themeAccentMode)
{
var windowHelper = new WindowInteropHelper(wind);
var accent = new AccentPolicy { AccentState = themeAccentMode };
var accentStructSize = Marshal.SizeOf(accent);
var accentPtr = Marshal.AllocHGlobal(accentStructSize);
Marshal.StructureToPtr(accent, accentPtr, false);
var data = new WindowCompositionAttributeData
{
Attribute = WindowCompositionAttribute.WCA_ACCENT_POLICY,
SizeOfData = accentStructSize,
Data = accentPtr
};
SetWindowCompositionAttribute(windowHelper.Handle, ref data);
Marshal.FreeHGlobal(accentPtr);
}
#endregion
}
}