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[MouseJump][CQ]Refactor "common" classes into a separate project (#34333)
* [Mouse Jump] - moving common code to MouseJump.Common project - #25482 * [Mouse Jump] - fixing warnings in MouseJump.Common - #25482 * [MouseJump] - cherrypick 5653b4 - Exclude MouseJump Common tests from the checks # Conflicts: # src/modules/MouseUtils/MouseJump.Common.UnitTests/MouseJump.Common.UnitTests.csproj * [mOuSEjUMP] - cherry pick 61aab9 - Fix ci build issues # Conflicts: # src/modules/MouseUtils/MouseJump.Common.UnitTests/MouseJump.Common.UnitTests.csproj * [Mouse Jump] - remove project type guids - #25482 * [Mouse Jump] - simplify mousejump *.csproj files - #25482 * [Mouse Jump] - fixing broken tests - #25482 * [Mouse Jump] - fixing broken build - #25482 * [Mouse Jump] - editing MouseJump.Common.UnitTests.csproj - #25482 * [Mouse Jump] - editing MouseJump.Common.csproj (UseWindowsForms=true) - #25482 * [Mouse Jump] - fixing spellcheck - #25482 * [MouseJump] - enabled implicit usings - #25482 * [Mouse Jump] - re-add csproj attributes - #27511 * ci: Fix signing of Common dll --------- Co-authored-by: Clayton <mike.clayton@delinian.com>
This commit is contained in:
Michael Clayton
@@ -0,0 +1,122 @@
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// Copyright (c) Microsoft Corporation
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// The Microsoft Corporation licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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using System.Diagnostics;
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using MouseJump.Common.Models.Drawing;
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using MouseJump.Common.NativeMethods;
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using static MouseJump.Common.NativeMethods.Core;
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namespace MouseJump.Common.Imaging;
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/// <summary>
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/// Implements an IImageRegionCopyService that uses the current desktop window as the copy source.
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/// This is used during the main application runtime to generate preview images of the desktop.
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/// </summary>
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public sealed class DesktopImageRegionCopyService : IImageRegionCopyService
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{
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/// <summary>
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/// Copies the source region from the current desktop window
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/// to the target region on the specified Graphics object.
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/// </summary>
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public void CopyImageRegion(
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Graphics targetGraphics,
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RectangleInfo sourceBounds,
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RectangleInfo targetBounds)
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{
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var stopwatch = Stopwatch.StartNew();
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var (desktopHwnd, desktopHdc) = DesktopImageRegionCopyService.GetDesktopDeviceContext();
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var previewHdc = DesktopImageRegionCopyService.GetGraphicsDeviceContext(
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targetGraphics, Gdi32.STRETCH_BLT_MODE.STRETCH_HALFTONE);
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stopwatch.Stop();
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var source = sourceBounds.ToRectangle();
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var target = targetBounds.ToRectangle();
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var result = Gdi32.StretchBlt(
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previewHdc,
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target.X,
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target.Y,
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target.Width,
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target.Height,
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desktopHdc,
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source.X,
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source.Y,
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source.Width,
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source.Height,
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Gdi32.ROP_CODE.SRCCOPY);
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if (!result)
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{
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throw new InvalidOperationException(
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$"{nameof(Gdi32.StretchBlt)} returned {result.Value}");
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}
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// we need to release the graphics device context handle before anything
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// else tries to use the Graphics object otherwise it'll give an error
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// from GDI saying "Object is currently in use elsewhere"
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DesktopImageRegionCopyService.FreeGraphicsDeviceContext(targetGraphics, ref previewHdc);
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DesktopImageRegionCopyService.FreeDesktopDeviceContext(ref desktopHwnd, ref desktopHdc);
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}
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private static (HWND DesktopHwnd, HDC DesktopHdc) GetDesktopDeviceContext()
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{
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var desktopHwnd = User32.GetDesktopWindow();
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var desktopHdc = User32.GetWindowDC(desktopHwnd);
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if (desktopHdc.IsNull)
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{
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throw new InvalidOperationException(
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$"{nameof(User32.GetWindowDC)} returned null");
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}
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return (desktopHwnd, desktopHdc);
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}
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private static void FreeDesktopDeviceContext(ref HWND desktopHwnd, ref HDC desktopHdc)
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{
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if (!desktopHwnd.IsNull && !desktopHdc.IsNull)
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{
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var result = User32.ReleaseDC(desktopHwnd, desktopHdc);
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if (result == 0)
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{
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throw new InvalidOperationException(
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$"{nameof(User32.ReleaseDC)} returned {result}");
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}
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}
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desktopHwnd = HWND.Null;
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desktopHdc = HDC.Null;
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}
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/// <summary>
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/// Checks if the target device context handle exists, and creates a new one from the
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/// specified Graphics object if not.
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/// </summary>
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private static HDC GetGraphicsDeviceContext(Graphics graphics, Gdi32.STRETCH_BLT_MODE mode)
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{
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var graphicsHdc = (HDC)graphics.GetHdc();
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var result = Gdi32.SetStretchBltMode(graphicsHdc, mode);
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if (result == 0)
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{
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throw new InvalidOperationException(
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$"{nameof(Gdi32.SetStretchBltMode)} returned {result}");
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}
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return graphicsHdc;
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}
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/// <summary>
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/// Free the specified device context handle if it exists.
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/// </summary>
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private static void FreeGraphicsDeviceContext(Graphics graphics, ref HDC graphicsHdc)
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{
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if (graphicsHdc.IsNull)
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{
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return;
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}
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graphics.ReleaseHdc(graphicsHdc.Value);
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graphicsHdc = HDC.Null;
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}
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}
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@@ -0,0 +1,23 @@
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// Copyright (c) Microsoft Corporation
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// The Microsoft Corporation licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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using MouseJump.Common.Models.Drawing;
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namespace MouseJump.Common.Imaging;
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public interface IImageRegionCopyService
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{
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/// <summary>
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/// Copies the source region from the provider's source image (e.g. the interactive desktop,
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/// a static image, etc) to the target region on the specified Graphics object.
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/// </summary>
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/// <remarks>
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/// Implementations of this interface are used to capture regions of the interactive desktop
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/// during runtime, or to capture regions of a static reference image during unit tests.
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/// </remarks>
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void CopyImageRegion(
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Graphics targetGraphics,
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RectangleInfo sourceBounds,
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RectangleInfo targetBounds);
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}
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@@ -0,0 +1,40 @@
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// Copyright (c) Microsoft Corporation
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// The Microsoft Corporation licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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using MouseJump.Common.Models.Drawing;
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namespace MouseJump.Common.Imaging;
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/// <summary>
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/// Implements an IImageRegionCopyService that uses the specified image as the copy source.
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/// This is used for testing the DrawingHelper rather than as part of the main application.
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/// </summary>
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public sealed class StaticImageRegionCopyService : IImageRegionCopyService
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{
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public StaticImageRegionCopyService(Image sourceImage)
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{
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this.SourceImage = sourceImage ?? throw new ArgumentNullException(nameof(sourceImage));
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}
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private Image SourceImage
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{
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get;
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}
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/// <summary>
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/// Copies the source region from the static source image
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/// to the target region on the specified Graphics object.
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/// </summary>
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public void CopyImageRegion(
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Graphics targetGraphics,
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RectangleInfo sourceBounds,
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RectangleInfo targetBounds)
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{
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targetGraphics.DrawImage(
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image: this.SourceImage,
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destRect: targetBounds.ToRectangle(),
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srcRect: sourceBounds.ToRectangle(),
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srcUnit: GraphicsUnit.Pixel);
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}
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}
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