├── .gitattributes ├── .gitignore ├── ImageViewer ├── App.xaml ├── App.xaml.cs ├── AssemblyInfo.cs ├── ConsoleExtensions.cs ├── ImageViewer.csproj ├── ImageViewerControl │ ├── ControlPanel.xaml │ ├── ControlPanel.xaml.cs │ ├── Extensions │ │ ├── BitmapImageExtensions.cs │ │ ├── ControlExtensions.cs │ │ └── RectExtensions.cs │ ├── ImageViewer.cs │ ├── InCanvas.cs │ ├── OutCanvas.cs │ ├── RoiControls │ │ ├── Adorner │ │ │ ├── RectangleRoiControlAdorner.cs │ │ │ └── RoiControlAdorner.cs │ │ ├── Extensions │ │ │ └── RoiControlExtensions.cs │ │ ├── ImageNotLoadedException.cs │ │ ├── RectangleRoiControl.cs │ │ ├── RoiControl.cs │ │ └── ShapeType.cs │ └── RoiShapes │ │ ├── RectangleRoiShape.cs │ │ ├── RoiPoint.cs │ │ └── RoiShape.cs ├── MainWindow.xaml └── MainWindow.xaml.cs ├── ImageViewerDemo.DotSettings ├── ImageViewerDemo.sln ├── ImageViewerDemo ├── App.xaml ├── App.xaml.cs ├── AssemblyInfo.cs ├── ConsoleExtensions.cs ├── FodyWeavers.xml ├── FodyWeavers.xsd ├── ImageViewerDemo.csproj ├── MainWindow.xaml ├── MainWindow.xaml.cs ├── PathExtensions.cs └── UIElementExtensions.cs ├── ReadMe.md └── RenderTransformImageViewerDemo ├── App.xaml ├── App.xaml.cs ├── AssemblyInfo.cs ├── DebugExtensions.cs ├── MainWindow.xaml ├── MainWindow.xaml.cs └── RenderTransformImageViewerDemo.csproj /.gitattributes: -------------------------------------------------------------------------------- 1 | ############################################################################### 2 | # Set default behavior to automatically normalize line endings. 3 | ############################################################################### 4 | * text=auto 5 | 6 | ############################################################################### 7 | # Set default behavior for command prompt diff. 8 | # 9 | # This is need for earlier builds of msysgit that does not have it on by 10 | # default for csharp files. 11 | # Note: This is only used by command line 12 | ############################################################################### 13 | #*.cs diff=csharp 14 | 15 | ############################################################################### 16 | # Set the merge driver for project and solution files 17 | # 18 | # Merging from the command prompt will add diff markers to the files if there 19 | # are conflicts (Merging from VS is not affected by the settings below, in VS 20 | # the diff markers are never inserted). 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2 | 3 | namespace ImageViewer 4 | { 5 | /// 6 | /// Interaction logic for App.xaml 7 | /// 8 | public partial class App : Application 9 | { 10 | } 11 | } -------------------------------------------------------------------------------- /ImageViewer/AssemblyInfo.cs: -------------------------------------------------------------------------------- 1 | using System.Windows; 2 | 3 | [assembly: ThemeInfo( 4 | ResourceDictionaryLocation 5 | .None, //where theme specific resource dictionaries are located 6 | //(used if a resource is not found in the page, 7 | // or application resource dictionaries) 8 | ResourceDictionaryLocation 9 | .SourceAssembly //where the generic resource dictionary is located 10 | //(used if a resource is not found in the page, 11 | // app, or any theme specific resource dictionaries) 12 | )] -------------------------------------------------------------------------------- /ImageViewer/ConsoleExtensions.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | 3 | namespace ImageViewer 4 | { 5 | public static class ConsoleExtensions 6 | { 7 | public static void ConsoleSplitLine(char splitLineChar = '_', 8 | ConsoleColor foregroundColor = ConsoleColor.Gray, 9 | ConsoleColor backgroundColor = ConsoleColor.Black) 10 | { 11 | int width = Console.WindowWidth; 12 | new string(splitLineChar, width - 1).WriteLine(foregroundColor, 13 | backgroundColor); 14 | } 15 | public static void WriteLine(this T t, 16 | ConsoleColor foregroundColor = ConsoleColor.Gray, 17 | ConsoleColor backgroundColor = ConsoleColor.Black) 18 | { 19 | ConsoleColor backgroundBuff = Console.BackgroundColor; 20 | ConsoleColor foregroundBuff = Console.ForegroundColor; 21 | Console.BackgroundColor = backgroundColor; 22 | Console.ForegroundColor = foregroundColor; 23 | Console.WriteLine(t); 24 | Console.BackgroundColor = backgroundBuff; 25 | Console.ForegroundColor = foregroundBuff; 26 | } 27 | } 28 | } -------------------------------------------------------------------------------- /ImageViewer/ImageViewer.csproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | Exe 5 | net5.0 6 | true 7 | 8 | 9 | -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/ControlPanel.xaml: -------------------------------------------------------------------------------- 1 |  11 | 12 | 13 | 17 | 18 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/ControlPanel.xaml.cs: -------------------------------------------------------------------------------- 1 | using System.Diagnostics.CodeAnalysis; 2 | using System.Linq; 3 | using System.Windows; 4 | using System.Windows.Controls; 5 | using System.Windows.Controls.Primitives; 6 | 7 | namespace ImageViewer.ImageViewerControl 8 | { 9 | /// 10 | /// ControlPanel.xaml 的交互逻辑 11 | /// 12 | internal partial class ControlPanel : UserControl 13 | { 14 | public ControlPanel(ImageViewer imageViewer) 15 | { 16 | InitializeComponent(); 17 | DataContext = imageViewer; 18 | } 19 | 20 | [System.Diagnostics.CodeAnalysis.SuppressMessage("Style", 21 | "RCS1001:Add braces (when expression spans over multiple lines).", 22 | Justification = "<挂起>")] 23 | [SuppressMessage("ReSharper", "PossibleNullReferenceException")] 24 | private void ToggleButtons_OnChecked(object sender, RoutedEventArgs e) 25 | { 26 | var toggleButton = sender as ToggleButton; 27 | var wrapPanel = toggleButton.Parent as WrapPanel; 28 | foreach (ToggleButton button in wrapPanel.Children.OfType()) 29 | if (button != toggleButton) 30 | button.IsChecked = false; 31 | } 32 | } 33 | } -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/Extensions/BitmapImageExtensions.cs: -------------------------------------------------------------------------------- 1 | using System.Diagnostics.CodeAnalysis; 2 | using System.Windows.Media.Imaging; 3 | 4 | namespace ImageViewer.ImageViewerControl.Extensions 5 | { 6 | internal static class BitmapImageExtensions 7 | { 8 | public static (double width, double height) GetWH(this BitmapImage bitmapImage) 9 | { 10 | double width = bitmapImage.Width; 11 | double height = bitmapImage.Height; 12 | return (width, height); 13 | } 14 | } 15 | } -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/Extensions/ControlExtensions.cs: -------------------------------------------------------------------------------- 1 | using System.Diagnostics.CodeAnalysis; 2 | using System.Windows; 3 | using System.Windows.Controls; 4 | 5 | namespace ImageViewer.ImageViewerControl.Extensions 6 | { 7 | internal static class ControlExtensions 8 | { 9 | public static (double x, double y) GetCanvasXY(this UIElement frameworkElement) 10 | { 11 | double x = Canvas.GetLeft(frameworkElement); 12 | double y = Canvas.GetTop(frameworkElement); 13 | x = double.IsNaN(x) ? 0 : x; 14 | y = double.IsNaN(y) ? 0 : y; 15 | return (x, y); 16 | } 17 | 18 | public static (double width, double height) GetWH( 19 | this FrameworkElement frameworkElement) 20 | { 21 | double width = frameworkElement.Width; 22 | double height = frameworkElement.Height; 23 | return (width, height); 24 | } 25 | 26 | public static void SetCanvasXY(this UIElement frameworkElement, 27 | double left, 28 | double top) 29 | { 30 | Canvas.SetLeft(frameworkElement, left); 31 | Canvas.SetTop(frameworkElement, top); 32 | } 33 | 34 | public static void SetWH(this FrameworkElement frameworkElement, 35 | double width, 36 | double height) 37 | { 38 | frameworkElement.Width = width; 39 | frameworkElement.Height = height; 40 | } 41 | } 42 | } -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/Extensions/RectExtensions.cs: -------------------------------------------------------------------------------- 1 | using System.Windows; 2 | using System.Windows.Media; 3 | using System.Windows.Shapes; 4 | 5 | namespace ImageViewer.ImageViewerControl.Extensions 6 | { 7 | internal static class PathExtensions 8 | { 9 | public static void SetRoiPathFill(this Path path) 10 | { 11 | path.Fill = new SolidColorBrush(Color.FromArgb(1, 0, 0, 0)); 12 | } 13 | 14 | public static void SetRoiPathNullFill(this Path path) 15 | { 16 | path.Fill = default; 17 | } 18 | } 19 | 20 | internal static class RectExtensions 21 | { 22 | public static (double x, double y, double width, double height) 23 | GetPositionAndSize(this Rect rect) 24 | { 25 | return (rect.X, rect.Y, rect.Width, rect.Height); 26 | } 27 | } 28 | } -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/ImageViewer.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Immutable; 3 | using System.Diagnostics.CodeAnalysis; 4 | using System.Linq; 5 | using System.Windows; 6 | using System.Windows.Controls; 7 | using System.Windows.Media; 8 | using System.Windows.Media.Imaging; 9 | using ImageViewer.ImageViewerControl.Extensions; 10 | using ImageViewer.ImageViewerControl.RoiControls; 11 | 12 | namespace ImageViewer.ImageViewerControl 13 | { 14 | public class ImageViewer : ContentControl 15 | { 16 | public static readonly DependencyProperty IsImageLoadedProperty; 17 | 18 | /// 19 | /// 是否修改ROI 20 | /// 21 | public static readonly DependencyProperty IsModifyRoiProperty = 22 | DependencyProperty.Register(nameof(IsModifyRoi), 23 | typeof(bool), 24 | typeof(ImageViewer), 25 | new PropertyMetadata(default(bool), 26 | IsModifyRoiPropertyChangedCallback)); 27 | 28 | /// 29 | /// 是否移动与缩放ROI 30 | /// 31 | public static readonly DependencyProperty IsMoveAndScaleProperty = 32 | DependencyProperty.Register(nameof(IsMoveAndScale), 33 | typeof(bool), 34 | typeof(ImageViewer), 35 | new PropertyMetadata(default(bool))); 36 | 37 | /// 38 | /// 是否画矩形ROI 39 | /// 40 | public static readonly DependencyProperty IsRectangleProperty = 41 | DependencyProperty.Register(nameof(IsRectangle), 42 | typeof(bool), 43 | typeof(ImageViewer), 44 | new PropertyMetadata(default(bool))); 45 | 46 | /// 47 | /// 是否画旋转矩形ROI 48 | /// 49 | public static readonly DependencyProperty IsRotateRectangleProperty = 50 | DependencyProperty.Register(nameof(IsRotateRectangle), 51 | typeof(bool), 52 | typeof(ImageViewer), 53 | new PropertyMetadata(default(bool))); 54 | 55 | /// 56 | /// 最大缩放倍数 57 | /// 58 | public static readonly DependencyProperty MaxScaleProperty = 59 | DependencyProperty.Register(nameof(MaxScale), 60 | typeof(double), 61 | typeof(ImageViewer), 62 | new PropertyMetadata((double) 10)); 63 | 64 | /// 65 | /// 最小缩放倍数 66 | /// 67 | public static readonly DependencyProperty MinScaleProperty = 68 | DependencyProperty.Register(nameof(MinScale), 69 | typeof(double), 70 | typeof(ImageViewer), 71 | new PropertyMetadata(0.00000000001)); 72 | 73 | /// 74 | /// 缩放系数,一次缩放多少倍 75 | /// 76 | public static readonly DependencyProperty ScaleFactorProperty = 77 | DependencyProperty.Register(nameof(ScaleFactor), 78 | typeof(double), 79 | typeof(ImageViewer), 80 | new PropertyMetadata(0.05)); 81 | 82 | public static readonly DependencyProperty SelectInsideOrOutlineProperty = 83 | DependencyProperty.Register(nameof(SelectInsideOrOutline), 84 | typeof(bool), 85 | typeof(ImageViewer), 86 | new PropertyMetadata(default(bool), 87 | SelectOutlineOrInsidePropertyChangedCallback)); 88 | 89 | /// 90 | /// 缩放倍数 91 | /// 92 | internal static readonly DependencyProperty ScaleProperty = 93 | DependencyProperty.Register(nameof(Scale), 94 | typeof(double), 95 | typeof(ImageViewer), 96 | new PropertyMetadata((double) 1)); 97 | 98 | /// 99 | /// 图片是否已经加载 100 | /// 101 | private static readonly DependencyPropertyKey IsImageLoadedPropertyKey = 102 | DependencyProperty.RegisterReadOnly(nameof(IsImageLoaded), 103 | typeof(bool), 104 | typeof(ImageViewer), 105 | new PropertyMetadata(default(bool))); 106 | 107 | internal Image Image; 108 | internal InCanvas InCanvas; 109 | internal OutCanvas OutCanvas; 110 | 111 | static ImageViewer() 112 | { 113 | IsImageLoadedProperty = IsImageLoadedPropertyKey.DependencyProperty; 114 | } 115 | 116 | public bool IsImageLoaded => (bool) GetValue(IsImageLoadedProperty); 117 | 118 | public bool IsModifyRoi 119 | { 120 | get => (bool) GetValue(IsModifyRoiProperty); 121 | set => SetValue(IsModifyRoiProperty, value); 122 | } 123 | 124 | public bool IsMoveAndScale 125 | { 126 | get => (bool) GetValue(IsMoveAndScaleProperty); 127 | set => SetValue(IsMoveAndScaleProperty, value); 128 | } 129 | 130 | public bool IsRectangle 131 | { 132 | get => (bool) GetValue(IsRectangleProperty); 133 | set => SetValue(IsRectangleProperty, value); 134 | } 135 | 136 | public bool IsRotateRectangle 137 | { 138 | get => (bool) GetValue(IsRotateRectangleProperty); 139 | set => SetValue(IsRotateRectangleProperty, value); 140 | } 141 | 142 | public double MaxScale 143 | { 144 | get => (double) GetValue(MaxScaleProperty); 145 | set => SetValue(MaxScaleProperty, value); 146 | } 147 | 148 | public double MinScale 149 | { 150 | get => (double) GetValue(MinScaleProperty); 151 | set => SetValue(MinScaleProperty, value); 152 | } 153 | 154 | public double Scale 155 | { 156 | get => (double) GetValue(ScaleProperty); 157 | internal set => SetValue(ScaleProperty, value); 158 | } 159 | 160 | /// 161 | /// 缩放系数 162 | /// 163 | public double ScaleFactor 164 | { 165 | get => (double) GetValue(ScaleFactorProperty); 166 | set => SetValue(ScaleFactorProperty, value); 167 | } 168 | 169 | /// 170 | /// 当需要修改ROI时,点击ROI的轮廓还是内部可以选中ROI 171 | /// 172 | /// 173 | /// true为点击ROI内部选中ROI,false为点击ROI轮廓选中ROI 174 | /// 175 | public bool SelectInsideOrOutline 176 | { 177 | get => (bool) GetValue(SelectInsideOrOutlineProperty); 178 | set => SetValue(SelectInsideOrOutlineProperty, value); 179 | } 180 | 181 | private bool IsImageLoadedKey 182 | { 183 | get => (bool) GetValue(IsImageLoadedPropertyKey.DependencyProperty); 184 | set => SetValue(IsImageLoadedPropertyKey, value); 185 | } 186 | 187 | public void AddRoi(RoiControl roi) 188 | { 189 | roi.ImageViewer = this; 190 | InCanvas.Children.Add(roi); 191 | } 192 | 193 | public void ClearRoi() 194 | { 195 | foreach (RoiControl roiShape in GetRoi()) 196 | InCanvas.Children.Remove(roiShape); 197 | } 198 | 199 | /// 200 | /// 获取控件内部的两个Canvas的RenderSize 201 | /// 202 | /// 203 | public (Size outCanvasRenderSize, Size inCanvasRenderSize) 204 | GetCanvasesRenderSize() 205 | { 206 | Size outCanvasRenderSize = OutCanvas.RenderSize; 207 | Size inCanvasRenderSize = InCanvas.RenderSize; 208 | return (outCanvasRenderSize, inCanvasRenderSize); 209 | } 210 | 211 | public ImmutableArray GetRoi() 212 | { 213 | return InCanvas.Children.OfType().ToImmutableArray(); 214 | } 215 | 216 | public (double scale, double scaleFactor, double minScale, double maxScale) 217 | GetScaleInfo() 218 | { 219 | return (Scale, ScaleFactor, MinScale, MaxScale); 220 | } 221 | 222 | /// 223 | /// 在控件中显示图片 224 | /// 225 | /// 图片路径 226 | public void LoadImage(string filePath) 227 | { 228 | var bitmapImage = new BitmapImage(new Uri(filePath)); 229 | SetInsideControlsInfo_When_LoadImage(bitmapImage); 230 | IsImageLoadedKey = true; 231 | ClearRoi(); 232 | } 233 | 234 | public void RemoveLastRoi() 235 | { 236 | ImmutableArray _roiShapes = GetRoi(); 237 | if (_roiShapes.Length != 0) 238 | InCanvas.Children.Remove(_roiShapes.Last()); 239 | } 240 | 241 | protected override void OnInitialized(EventArgs e) 242 | { 243 | base.OnInitialized(e); 244 | Initialization_Layout_ChildrenControl(); 245 | } 246 | 247 | private static void IsModifyRoiPropertyChangedCallback(DependencyObject d, 248 | DependencyPropertyChangedEventArgs e) 249 | { 250 | var imageViewer = (ImageViewer) d; 251 | if (imageViewer.IsModifyRoi == false) 252 | foreach (RoiControl roiControl in imageViewer.GetRoi()) 253 | roiControl.IsSelected = false; 254 | } 255 | 256 | private static void SelectOutlineOrInsidePropertyChangedCallback( 257 | DependencyObject d, 258 | DependencyPropertyChangedEventArgs e) 259 | { 260 | var viewer = (ImageViewer) d; 261 | ImmutableList controls = viewer.GetRoi() 262 | .Where(control => control.ContentPath != null) 263 | .ToImmutableList(); 264 | viewer.SelectInsideOrOutline.WriteLine(); 265 | if (viewer.SelectInsideOrOutline) 266 | controls.ForEach(control => control.ContentPath.SetRoiPathNullFill()); 267 | else 268 | controls.ForEach(control => control.ContentPath.SetRoiPathFill()); 269 | } 270 | 271 | /// 272 | /// 初始化并布局子空间 273 | /// 274 | /// 初始化此控件。 此控件的结构为： Gird分为两行，第一行存放着_outCanvas，第二行存放着该控件的一些功能选择按钮，例如是否缩放、移动图片等等。 275 | /// _outCanvas包含着_inCanvas。 276 | /// _inCanvas包含着_image。 277 | /// 278 | /// 279 | private void Initialization_Layout_ChildrenControl() 280 | { 281 | var grid = new Grid 282 | { 283 | RowDefinitions = 284 | { 285 | new RowDefinition(), 286 | new RowDefinition {Height = GridLength.Auto} 287 | } 288 | }; 289 | Content = grid; 290 | InCanvas = new InCanvas(this) {Background = Brushes.Green}; 291 | OutCanvas = new OutCanvas(this) 292 | { 293 | Background = Brushes.Black, ClipToBounds = true 294 | }; 295 | grid.Children.Add(OutCanvas); 296 | OutCanvas.Children.Add(InCanvas); 297 | var controlPanel = new ControlPanel(this); 298 | grid.Children.Add(controlPanel); 299 | Grid.SetRow(controlPanel, 1); 300 | } 301 | 302 | /// 303 | /// 当加载图片时设置内部控件的属性。 304 | /// 305 | /// 306 | /// _image的长宽与其Canvas.Left、Canvas.Top。 307 | /// _inCanvas的长宽与其Canvas.Left、Canvas.Top。 308 | /// 309 | /// 310 | [SuppressMessage("Readability", 311 | "RCS1123:Add parentheses when necessary.", 312 | Justification = "<挂起>")] 313 | private void SetInsideControlsInfo_When_LoadImage(BitmapImage bitmapImage) 314 | { 315 | Scale = 1; 316 | if (Image == null) 317 | { 318 | Image = new Image {Source = bitmapImage}; 319 | InCanvas.Children.Add(Image); 320 | } 321 | else 322 | { 323 | Image.Source = bitmapImage; 324 | } 325 | 326 | (double width, double height) = bitmapImage.GetWH(); 327 | Image.SetWH(width, height); 328 | InCanvas.RenderTransform = new ScaleTransform(1, 1); 329 | (double inW, double inH) = (width * 100, height * 100); 330 | InCanvas.SetWH(inW, inH); 331 | (double x, double y) = (inW / 2 - width / 2, inH / 2 - height / 2); 332 | Image.SetCanvasXY(x, y); 333 | InCanvas.SetCanvasXY(-x, -y); 334 | } 335 | } 336 | } -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/InCanvas.cs: -------------------------------------------------------------------------------- 1 | using ImageViewer.ImageViewerControl.Extensions; 2 | using System.Linq; 3 | using System.Windows; 4 | using System.Windows.Controls; 5 | using System.Windows.Input; 6 | using ImageViewer.ImageViewerControl.RoiControls; 7 | namespace ImageViewer.ImageViewerControl 8 | { 9 | internal class InCanvas : Canvas 10 | { 11 | private readonly ImageViewer _imageViewer; 12 | private Point _buffPoint; 13 | private RoiControl _buffRoiControl; 14 | public InCanvas(ImageViewer imageViewer) 15 | { 16 | _imageViewer = imageViewer; 17 | } 18 | protected override void OnMouseDown(MouseButtonEventArgs e) 19 | { 20 | base.OnMouseDown(e); 21 | if (IsRectangleConditionOk(e)) 22 | { 23 | _buffPoint = e.GetPosition(this); 24 | _buffRoiControl = default; 25 | } 26 | } 27 | protected override void OnMouseMove(MouseEventArgs e) 28 | { 29 | base.OnMouseMove(e); 30 | if (IsRectangleConditionOk(e)) 31 | { 32 | Point position = e.GetPosition(this); 33 | Vector vector = position - _buffPoint; 34 | var rect = new Rect(_buffPoint, vector); 35 | (double x, double y, double width, double height) = 36 | rect.GetPositionAndSize(); 37 | if (_buffRoiControl == null) 38 | { 39 | _buffRoiControl = new RectangleRoiControl(x, y, width, height); 40 | _imageViewer.AddRoi(_buffRoiControl); 41 | } 42 | RectangleRoiControl rectangleRoiControl = Children 43 | .OfType() 44 | .Single(roi => roi == _buffRoiControl); 45 | rectangleRoiControl.SetPositionAndSize(x, y, width, height); 46 | } 47 | } 48 | private bool IsRectangleConditionOk(MouseEventArgs e) 49 | { 50 | return _imageViewer.IsRectangle && 51 | (e.LeftButton == MouseButtonState.Pressed || 52 | e.RightButton == MouseButtonState.Pressed); 53 | } 54 | private bool IsRectangleConditionOk(MouseButtonEventArgs e) 55 | { 56 | return _imageViewer.IsRectangle && 57 | (e.LeftButton == MouseButtonState.Pressed || 58 | e.RightButton == MouseButtonState.Pressed); 59 | } 60 | } 61 | } -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/OutCanvas.cs: -------------------------------------------------------------------------------- 1 | using ImageViewer.ImageViewerControl.Extensions; 2 | using System; 3 | using System.Windows; 4 | using System.Windows.Controls; 5 | using System.Windows.Input; 6 | using System.Windows.Media; 7 | 8 | namespace ImageViewer.ImageViewerControl 9 | { 10 | internal class OutCanvas : Canvas 11 | { 12 | private readonly ImageViewer _imageViewer; 13 | private readonly InCanvas _inCanvas; 14 | private Point _buffPoint; 15 | 16 | protected override void OnMouseDown(MouseButtonEventArgs e) 17 | { 18 | if (IsMoveAndScaleConditionOk(e)) 19 | _buffPoint = e.GetPosition(this); 20 | base.OnMouseDown(e); 21 | } 22 | 23 | protected override void OnMouseMove(MouseEventArgs e) 24 | { 25 | if (IsMoveAndScaleConditionOk(e)) 26 | { 27 | Point position = e.GetPosition(this); 28 | Vector vector = position - _buffPoint; 29 | (double x, double y) = _inCanvas.GetCanvasXY(); 30 | (double newX, double newY) = (x + vector.X, y + vector.Y); 31 | _inCanvas.SetCanvasXY(newX, newY); 32 | _buffPoint = position; 33 | } 34 | 35 | base.OnMouseMove(e); 36 | } 37 | 38 | [System.Diagnostics.CodeAnalysis.SuppressMessage("Readability", 39 | "RCS1123:Add parentheses when necessary.", 40 | Justification = "<挂起>")] 41 | protected override void OnMouseWheel(MouseWheelEventArgs e) 42 | { 43 | if (_imageViewer.IsMoveAndScale) 44 | { 45 | (double scale, double scaleFactor, double minScale, double maxScale) = 46 | _imageViewer.GetScaleInfo(); 47 | int i = e.Delta > 0 ? 1 : -1; 48 | double d = scale + scaleFactor * i; 49 | if (d > minScale && d < maxScale) 50 | { 51 | _imageViewer.Scale = d; 52 | _inCanvas.RenderTransformOrigin = new Point(0.5, 0.5); 53 | _inCanvas.RenderTransform = new ScaleTransform(d, d); 54 | } 55 | } 56 | 57 | base.OnMouseWheel(e); 58 | } 59 | 60 | private bool IsMoveAndScaleConditionOk(MouseButtonEventArgs e) 61 | { 62 | return _imageViewer.IsMoveAndScale && 63 | (e.LeftButton == MouseButtonState.Pressed || 64 | e.RightButton == MouseButtonState.Pressed); 65 | } 66 | 67 | private bool IsMoveAndScaleConditionOk(MouseEventArgs e) 68 | { 69 | return _imageViewer.IsMoveAndScale && 70 | (e.LeftButton == MouseButtonState.Pressed || 71 | e.RightButton == MouseButtonState.Pressed); 72 | } 73 | 74 | public OutCanvas(ImageViewer imageViewer) 75 | { 76 | _imageViewer = imageViewer ?? 77 | throw new ArgumentNullException(nameof(imageViewer)); 78 | _inCanvas = imageViewer.InCanvas; 79 | } 80 | } 81 | } -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/RoiControls/Adorner/RectangleRoiControlAdorner.cs: -------------------------------------------------------------------------------- 1 | using System.Windows.Controls.Primitives; 2 | using System.Windows.Media; 3 | 4 | namespace ImageViewer.ImageViewerControl.RoiControls.Adorner 5 | { 6 | public class RectangleRoiControlAdorner : RoiControlAdorner 7 | { 8 | 9 | public RectangleRoiControlAdorner(RectangleRoiControl adornedElement) : base( 10 | adornedElement) 11 | { 12 | 13 | } 14 | 15 | protected override void OnRender(DrawingContext drawingContext) 16 | { 17 | base.OnRender(drawingContext); 18 | } 19 | } 20 | } -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/RoiControls/Adorner/RoiControlAdorner.cs: -------------------------------------------------------------------------------- 1 | using System.Windows; 2 | using System.Windows.Controls.Primitives; 3 | using System.Windows.Media; 4 | using ImageViewer.ImageViewerControl.Extensions; 5 | 6 | namespace ImageViewer.ImageViewerControl.RoiControls.Adorner 7 | { 8 | public abstract class RoiControlAdorner : System.Windows.Documents.Adorner 9 | { 10 | public static readonly DependencyPropertyKey ChildrenPropertyKey = 11 | DependencyProperty.RegisterReadOnly(nameof(Children), 12 | typeof(VisualCollection), 13 | typeof(RoiControlAdorner), 14 | new PropertyMetadata(default(VisualCollection))); 15 | 16 | public static readonly DependencyProperty ChildrenProperty = 17 | ChildrenPropertyKey.DependencyProperty; 18 | 19 | public VisualCollection Children => (VisualCollection) GetValue(ChildrenProperty); 20 | 21 | VisualCollection ChildrenKey 22 | { 23 | get => (VisualCollection) GetValue(ChildrenPropertyKey.DependencyProperty); 24 | set => SetValue(ChildrenPropertyKey, value); 25 | } 26 | 27 | protected override Visual GetVisualChild(int index) 28 | { 29 | return Children[index]; 30 | } 31 | 32 | protected override int VisualChildrenCount => Children.Count; 33 | 34 | protected virtual Thumb MoveThumb { get; set; } = new Thumb() 35 | { 36 | Background = Brushes.DarkRed, Height = 25, Width = 25, 37 | }; 38 | 39 | protected RoiControlAdorner(RoiControl adornedElement) : base(adornedElement) 40 | { 41 | ChildrenKey = new VisualCollection(this); 42 | MoveThumb.DragDelta += OnMoveThumbDragDelta; 43 | Children.Add(MoveThumb); 44 | } 45 | 46 | protected override Size ArrangeOverride(Size finalSize) 47 | { 48 | Size desiredSize = AdornedElement.DesiredSize; 49 | MoveThumb.Arrange(new Rect(desiredSize.Width / 2 - MoveThumb.Width / 2, 50 | desiredSize.Height / 2 - MoveThumb.Height / 2, 51 | MoveThumb.Width, 52 | MoveThumb.Height)); 53 | return base.ArrangeOverride(finalSize); 54 | } 55 | 56 | protected override Size MeasureOverride(Size constraint) 57 | { 58 | MoveThumb.Measure(constraint); 59 | return base.MeasureOverride(constraint); 60 | } 61 | 62 | protected virtual void OnMoveThumbDragDelta(object sender, DragDeltaEventArgs e) 63 | { 64 | (double x, double y) = AdornedElement.GetCanvasXY(); 65 | double horizontalChange = e.HorizontalChange; 66 | double verticalChange = e.VerticalChange; 67 | (double newX, double newY) = (x + horizontalChange, y + verticalChange); 68 | AdornedElement.SetCanvasXY(newX, newY); 69 | } 70 | } 71 | } -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/RoiControls/Extensions/RoiControlExtensions.cs: -------------------------------------------------------------------------------- 1 | using System.Windows.Documents; 2 | 3 | namespace ImageViewer.ImageViewerControl.RoiControls.Extensions 4 | { 5 | internal static class RoiControlExtensions 6 | { 7 | public static AdornerLayer GetAdornerLayer(this RoiControl roiControl) 8 | { 9 | return AdornerLayer.GetAdornerLayer(roiControl); 10 | } 11 | } 12 | } -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/RoiControls/ImageNotLoadedException.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Runtime.Serialization; 3 | 4 | namespace ImageViewer.ImageViewerControl.RoiControls 5 | { 6 | public class ImageNotLoadedException : Exception 7 | { 8 | public ImageNotLoadedException() : base("还未加载任何图片，无法执行此操作！") 9 | { 10 | } 11 | 12 | protected ImageNotLoadedException(SerializationInfo info, 13 | StreamingContext context) : base(info, context) 14 | { 15 | } 16 | 17 | public ImageNotLoadedException(string message) : base(message) 18 | { 19 | } 20 | 21 | public ImageNotLoadedException(string message, Exception innerException) : base( 22 | message, 23 | innerException) 24 | { 25 | } 26 | } 27 | } -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/RoiControls/RectangleRoiControl.cs: -------------------------------------------------------------------------------- 1 | using System.Windows; 2 | using System.Windows.Controls; 3 | using System.Windows.Documents; 4 | using System.Windows.Media; 5 | using System.Windows.Shapes; 6 | using ImageViewer.ImageViewerControl.Extensions; 7 | using ImageViewer.ImageViewerControl.RoiControls.Adorner; 8 | using ImageViewer.ImageViewerControl.RoiControls.Extensions; 9 | using ImageViewer.ImageViewerControl.RoiShapes; 10 | 11 | namespace ImageViewer.ImageViewerControl.RoiControls 12 | { 13 | public class RectangleRoiControl : RoiControl 14 | { 15 | internal RectangleRoiControl(double x, double y, double width, double height) : 16 | base(ShapeType.Rectangle) 17 | { 18 | SetPositionAndSize(x, y, width, height); 19 | } 20 | 21 | public static RectangleRoiControl CreateRoi(double x, 22 | double y, 23 | double width, 24 | double height, 25 | ImageViewer imageViewer) 26 | { 27 | if (imageViewer.IsImageLoaded == false) 28 | { 29 | throw new ImageNotLoadedException(); 30 | } 31 | 32 | Image image = imageViewer.Image; 33 | (double dx, double dy) = image.GetCanvasXY(); 34 | return new RectangleRoiControl(dx + x, dy + y, width, height); 35 | } 36 | 37 | protected override RoiControlAdorner GetRoiControlAdorner() 38 | { 39 | return new RectangleRoiControlAdorner(this); 40 | } 41 | 42 | /// 43 | /// 获取此Roi相对于图片坐标系的左上角的坐标 44 | /// 45 | /// 46 | public override RoiShape GetRoiShape() 47 | { 48 | Image image = ImageViewer.Image; 49 | Point point = TranslatePoint(new Point(0, 0), image); 50 | return new RectangleRoiShape() 51 | { 52 | Width = Width, 53 | Height = Height, 54 | LeftTopPoint = new RoiPoint(point.X, point.Y) 55 | }; 56 | } 57 | 58 | /// 59 | /// 设置此Roi相对于画布坐标系的位置与尺寸 60 | /// 61 | /// 62 | /// 63 | /// 64 | /// 65 | internal void SetPositionAndSize(double x, 66 | double y, 67 | double width, 68 | double height) 69 | { 70 | this.SetWH(width, height); 71 | RenderRectangle(width, height); 72 | this.SetCanvasXY(x, y); 73 | } 74 | 75 | private void RenderRectangle(double width, double height) 76 | { 77 | Content = new Path 78 | { 79 | Data = new RectangleGeometry(new Rect(0, 0, width, height)), 80 | StrokeThickness = 5, 81 | Stroke = Brushes.DarkRed, 82 | }; 83 | ContentPath.SetRoiPathFill(); 84 | } 85 | } 86 | } -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/RoiControls/RoiControl.cs: -------------------------------------------------------------------------------- 1 | using System.Windows; 2 | using System.Windows.Controls; 3 | using System.Windows.Documents; 4 | using System.Windows.Input; 5 | using System.Windows.Media; 6 | using System.Windows.Shapes; 7 | using ImageViewer.ImageViewerControl.RoiControls.Adorner; 8 | using ImageViewer.ImageViewerControl.RoiControls.Extensions; 9 | using ImageViewer.ImageViewerControl.RoiShapes; 10 | 11 | namespace ImageViewer.ImageViewerControl.RoiControls 12 | { 13 | public abstract class RoiControl : ContentControl 14 | { 15 | public static readonly DependencyProperty TypeProperty = 16 | DependencyProperty.Register(nameof(Type), 17 | typeof(ShapeType), 18 | typeof(RoiControl), 19 | new PropertyMetadata(default(ShapeType))); 20 | 21 | protected internal ImageViewer ImageViewer; 22 | 23 | internal static readonly DependencyProperty IsSelectedProperty = 24 | DependencyProperty.Register(nameof(IsSelected), 25 | typeof(bool), 26 | typeof(RoiControl), 27 | new PropertyMetadata(default(bool), IsSelectedPropertyChangedCallback)); 28 | 29 | private static void IsSelectedPropertyChangedCallback(DependencyObject d, 30 | DependencyPropertyChangedEventArgs e) 31 | { 32 | var roiControl = (RoiControl) d; 33 | AdornerLayer layer = roiControl.AdornerLayer; 34 | System.Windows.Documents.Adorner[] adorners = layer.GetAdorners(roiControl); 35 | if (roiControl.IsSelected) 36 | { 37 | foreach (System.Windows.Documents.Adorner adorner in adorners) 38 | { 39 | adorner.Visibility = Visibility.Visible; 40 | } 41 | } 42 | else 43 | { 44 | foreach (System.Windows.Documents.Adorner adorner in adorners) 45 | { 46 | adorner.Visibility = Visibility.Collapsed; 47 | } 48 | } 49 | 50 | roiControl.IsSelected.WriteLine(); 51 | } 52 | 53 | protected AdornerLayer AdornerLayer; 54 | 55 | internal bool IsSelected 56 | { 57 | get => (bool) GetValue(IsSelectedProperty); 58 | set => SetValue(IsSelectedProperty, value); 59 | } 60 | 61 | protected RoiControl(ShapeType shapeType) 62 | { 63 | Type = shapeType; 64 | } 65 | 66 | protected abstract RoiControlAdorner GetRoiControlAdorner(); 67 | 68 | protected override void OnRender(DrawingContext drawingContext) 69 | { 70 | if (AdornerLayer == null) 71 | { 72 | AdornerLayer layer = this.GetAdornerLayer(); 73 | layer.Add(GetRoiControlAdorner()); 74 | foreach (System.Windows.Documents.Adorner adorner in layer.GetAdorners( 75 | this)) 76 | adorner.Visibility = Visibility.Collapsed; 77 | AdornerLayer = layer; 78 | } 79 | 80 | base.OnRender(drawingContext); 81 | } 82 | 83 | public ShapeType Type 84 | { 85 | get => (ShapeType) GetValue(TypeProperty); 86 | set => SetValue(TypeProperty, value); 87 | } 88 | 89 | public static RectangleRoiControl CreateRectangleRoi(double x, 90 | double y, 91 | double width, 92 | double height, 93 | ImageViewer imageViewer) 94 | { 95 | return RectangleRoiControl.CreateRoi(x, y, width, height, imageViewer); 96 | } 97 | 98 | protected override void OnMouseDown(MouseButtonEventArgs e) 99 | { 100 | if (ImageViewer.IsModifyRoi) 101 | { 102 | foreach (RoiControl roiControl in ImageViewer.GetRoi()) 103 | roiControl.IsSelected = false; 104 | IsSelected = true; 105 | } 106 | 107 | base.OnMouseDown(e); 108 | } 109 | 110 | public Path ContentPath => Content as Path; 111 | public abstract RoiShape GetRoiShape(); 112 | } 113 | } -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/RoiControls/ShapeType.cs: -------------------------------------------------------------------------------- 1 | namespace ImageViewer.ImageViewerControl.RoiControls 2 | { 3 | public enum ShapeType 4 | { 5 | Rectangle, RotateRectangle 6 | } 7 | } -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/RoiShapes/RectangleRoiShape.cs: -------------------------------------------------------------------------------- 1 | using ImageViewer.ImageViewerControl.RoiControls; 2 | 3 | namespace ImageViewer.ImageViewerControl.RoiShapes 4 | { 5 | public class RectangleRoiShape : RoiShape 6 | { 7 | public RoiPoint LeftTopPoint { get; set; } 8 | public double Width { get; set; } 9 | public double Height { get; set; } 10 | 11 | public RectangleRoiShape() : base(ShapeType.Rectangle) 12 | { 13 | } 14 | } 15 | } -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/RoiShapes/RoiPoint.cs: -------------------------------------------------------------------------------- 1 | namespace ImageViewer.ImageViewerControl.RoiShapes 2 | { 3 | public class RoiPoint 4 | { 5 | public RoiPoint(double x, double y) 6 | { 7 | X = x; 8 | Y = y; 9 | } 10 | 11 | public RoiPoint() 12 | { 13 | } 14 | 15 | public double X { get; set; } 16 | public double Y { get; set; } 17 | } 18 | } -------------------------------------------------------------------------------- /ImageViewer/ImageViewerControl/RoiShapes/RoiShape.cs: -------------------------------------------------------------------------------- 1 | using ImageViewer.ImageViewerControl.RoiControls; 2 | 3 | namespace ImageViewer.ImageViewerControl.RoiShapes 4 | { 5 | public abstract class RoiShape 6 | { 7 | protected RoiShape(ShapeType shapeType) 8 | { 9 | Type = shapeType; 10 | } 11 | 12 | public ShapeType Type { get; } 13 | } 14 | } -------------------------------------------------------------------------------- /ImageViewer/MainWindow.xaml: -------------------------------------------------------------------------------- 1 |  13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |