294 lines
9.2 KiB
C#
294 lines
9.2 KiB
C#
using GeekDesk.Interface;
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using GeekDesk.Util;
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using HandyControl.Controls;
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using System;
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using System.Reflection;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Controls.Primitives;
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using System.Windows.Forms;
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using System.Windows.Input;
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using System.Windows.Interop;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using static System.Windows.Forms.VisualStyles.VisualStyleElement;
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using Cursors = System.Windows.Input.Cursors;
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using KeyEventArgs = System.Windows.Input.KeyEventArgs;
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using MouseEventArgs = System.Windows.Input.MouseEventArgs;
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namespace GeekDesk.Control.Windows
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{
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/// <summary>
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/// ColorPickerWindow.xaml 的交互逻辑
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/// </summary>
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public partial class PixelColorPickerWindow : IWindowCommon
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{
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private static int PIXEL_REC_LENGTH = 10;
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private static readonly int MIN_LENGTH = 10;
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private static readonly int MAX_LENGTH = 50;
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//private static System.Drawing.Bitmap bgBitmap;
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private static RenderTargetBitmap renderTargetBitmap;
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private readonly ColorPicker colorPicker;
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[System.Runtime.InteropServices.DllImport("user32.dll")]
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private static extern bool SetProcessDPIAware();
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public PixelColorPickerWindow(ColorPicker colorPicker)
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{
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InitializeComponent();
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this.colorPicker = colorPicker;
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try
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{
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SetProcessDPIAware();
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}
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catch (Exception e) { }
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ColorPickerWindow_Init();
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}
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private void ColorPickerWindow_Init()
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{
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this.WindowState = WindowState.Normal;//还原窗口（非最小化和最大化）
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var screens = Screen.AllScreens;
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int allWidth = 0;
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int allHeight = 0;
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int x = 0;
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int y = 0;
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foreach (var screen in screens)
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{
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var rect = screen.Bounds;
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allWidth += rect.Width;
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allHeight += rect.Height;
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x = Math.Min(x, rect.X);
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y = Math.Min(y, rect.Y);
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}
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//获取缩放比例
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double scale = ScreenUtil.GetScreenScalingFactor();
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this.Width = allWidth;
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this.Height = allHeight;
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this.Left = x;
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this.Top = y;
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DesktopBG.Width = this.Width;
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DesktopBG.Height = this.Height;
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this.Topmost = true;
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System.Drawing.Bitmap bgBitmap = new System.Drawing.Bitmap(
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(int)(Width * scale),
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(int)(Height * scale),
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System.Drawing.Imaging.PixelFormat.Format32bppArgb
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);
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using (System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bgBitmap))
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{
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g.CopyFromScreen(
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(int)this.Left,
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(int)this.Top,
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0,
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0,
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bgBitmap.Size
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);
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}
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BitmapSource bs = Imaging.CreateBitmapSourceFromHBitmap(
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bgBitmap.GetHbitmap(),
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IntPtr.Zero,
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Int32Rect.Empty,
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BitmapSizeOptions.FromEmptyOptions()
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);
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DesktopBG.Source = bs;
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VisualBrush b = (VisualBrush)PixelBG.Fill;
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b.Visual = DesktopBG;
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Mouse.OverrideCursor = Cursors.Cross;
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}
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private void Window_Loaded(object sender, RoutedEventArgs e)
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{
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// 创建一个RenderTargetBitmap，捕获窗口的内容
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renderTargetBitmap = new RenderTargetBitmap((int)this.Width, (int)this.Height, 96, 96, PixelFormats.Pbgra32);
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renderTargetBitmap.Render(this);
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SetPixelAbout(null);
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}
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public void OnKeyDown(object sender, KeyEventArgs e)
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{
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if (e.Key == Key.Escape)
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{
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this.DataContext = null;
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this.Close();
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}
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}
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private void Window_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
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{
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Mouse.OverrideCursor = null;
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Point pos = e.MouseDevice.GetPosition(DesktopBG);
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colorPicker.SelectedBrush = new SolidColorBrush(GetColorAtPosition(Mouse.GetPosition(this)));
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this.Close();
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ClickColorPickerToggleButton(colorPicker);
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}
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public void ClickColorPickerToggleButton(ColorPicker colorPicker)
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{
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const BindingFlags InstanceBindFlags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic;
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Type type = colorPicker.GetType();
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FieldInfo fi = type.GetField("_toggleButtonDropper", InstanceBindFlags);
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ToggleButton tb = (ToggleButton)fi.GetValue(colorPicker);
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if (tb != null && tb.IsChecked == true)
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{
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tb.IsChecked = false;
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MethodInfo mi = type.GetMethod("ToggleButtonDropper_Click", InstanceBindFlags);
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mi.Invoke(colorPicker, new object[] { null, null });
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}
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}
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private void Window_PreviewMouseMove(object sender, MouseEventArgs e)
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{
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SetPixelAbout(e);
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}
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[System.Runtime.InteropServices.DllImport("gdi32.dll")]
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public static extern bool DeleteObject(IntPtr onj);
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// Constants for DPI
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private const int HORZRES = 8;
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private const int VERTRES = 10;
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private const int LOGPIXELSX = 88;
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private const int LOGPIXELSY = 90;
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private static float GetDpi(bool isX)
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{
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IntPtr hdc = WindowUtil.GetDC(IntPtr.Zero);
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int dpi = isX ? WindowUtil.GetDeviceCaps(hdc, LOGPIXELSX) : WindowUtil.GetDeviceCaps(hdc, LOGPIXELSY);
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WindowUtil.ReleaseDC(IntPtr.Zero, hdc);
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return dpi / 96f;
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}
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private void SetPixelAbout(MouseEventArgs e)
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{
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VisualBrush b = (VisualBrush)PixelBG.Fill;
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Point pos = Mouse.GetPosition(this);
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Rect viewBox = b.Viewbox;
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viewBox.Width = PIXEL_REC_LENGTH;
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viewBox.Height = PIXEL_REC_LENGTH;
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viewBox.X = pos.X - PIXEL_REC_LENGTH / 2;
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viewBox.Y = pos.Y - PIXEL_REC_LENGTH / 2;
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b.Viewbox = viewBox;
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double x = pos.X + 10;
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double y = pos.Y + 10;
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//获取缩放比例
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double scale = ScreenUtil.GetScreenScalingFactor();
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if (x + ColorCanvas.Width > this.Width / scale)
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{
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x = pos.X - ColorCanvas.Width - 10;
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}
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if (y + ColorCanvas.Height > this.Height / scale)
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{
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y = pos.Y - ColorCanvas.Height - 10;
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}
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Canvas.SetLeft(ColorCanvas, x);
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Canvas.SetTop(ColorCanvas, y);
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Color wColor = GetColorAtPosition(pos);
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System.Drawing.Color dColor = System.Drawing.Color.FromArgb(wColor.A, wColor.R, wColor.G, wColor.B);
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PixelColor_HTML.Text = "#" + dColor.Name.ToUpper().Substring(2);
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PixelColor_RGB.Text = dColor.R + "," + dColor.G + "," + dColor.B;
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Pixel_XY.Text = (int)pos.X + "*" + (int)pos.Y;
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SolidColorBrush scb = (SolidColorBrush)PixelColor.Fill;
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scb.Color = wColor;
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//scb.Color = Color.FromArgb(dColor.A, dColor.R, dColor.G, dColor.B);
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}
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private Color GetColorAtPosition(Point position)
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{
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// 使用CroppedBitmap裁剪出鼠标位置的一个像素
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CroppedBitmap croppedBitmap = new CroppedBitmap(renderTargetBitmap, new Int32Rect((int)position.X, (int)position.Y, 1, 1));
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// 将像素数据复制到数组中
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byte[] pixels = new byte[4];
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croppedBitmap.CopyPixels(pixels, 4, 0);
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// 如果像素数据有效，则返回颜色
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//if (pixels.Length == 4)
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//{
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//}
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return Color.FromArgb(pixels[3], pixels[2], pixels[1], pixels[0]);
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//return Color.FromArgb(0, 0, 0, 0);
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}
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/// <summary>
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/// 滚轮控制缩放区域
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void Window_MouseWheel(object sender, MouseWheelEventArgs e)
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{
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if (e.Delta < 0 && PIXEL_REC_LENGTH < MAX_LENGTH)
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{
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//缩小
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PIXEL_REC_LENGTH += 5;
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}
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else if (e.Delta > 0 && PIXEL_REC_LENGTH > MIN_LENGTH)
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{
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//放大
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PIXEL_REC_LENGTH -= 5;
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}
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SetPixelAbout(e);
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}
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/// <summary>
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/// 右键按下
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void Window_MouseRightButtonDown(object sender, MouseButtonEventArgs e)
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{
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Mouse.OverrideCursor = null;
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GlobalColorPickerWindow.ShowOrHide();
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//关闭
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this.Close();
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}
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}
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}
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