本文整理匯總了C#中System.Windows.Media.DrawingContext.DrawImage方法的典型用法代碼示例。如果您正苦於以下問題：C# DrawingContext.DrawImage方法的具體用法？C# DrawingContext.DrawImage怎麽用？C# DrawingContext.DrawImage使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Windows.Media.DrawingContext的用法示例。
在下文中一共展示了DrawingContext.DrawImage方法的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: Render
private void Render(DrawingContext drawingContext)
{
if (_width > 0 && _height > 0)
{
if (_bitmap == null || _bitmap.Width != _width || _bitmap.Height != _height)
{
_bitmap = new WriteableBitmap(_width, _height, 96, 96, PixelFormats.Pbgra32, null);
}
_bitmap.Lock();
using (var surface = SKSurface.Create(_width, _height, SKImageInfo.PlatformColorType, SKAlphaType.Premul, _bitmap.BackBuffer, _bitmap.BackBufferStride))
{
var canvas = surface.Canvas;
canvas.Scale((float)_dpiX, (float)_dpiY);
canvas.Clear();
using (new SKAutoCanvasRestore(canvas, true))
{
Presenter.Render(canvas, Renderer, Container, _offsetX, _offsetY);
}
}
_bitmap.AddDirtyRect(new Int32Rect(0, 0, _width, _height));
_bitmap.Unlock();
drawingContext.DrawImage(_bitmap, new Rect(0, 0, _actualWidth, _actualHeight));
}
}示例2: Draw
public virtual IDisposable Draw(DrawingContext drawingContext, Rect targetItemRect, int level)
{
//Default is to draw the image bits into the context:
//Do not dispose of the memory stream here, because System.Media.Windows uses
// retained mode rendering where the commands get batched to execute later.
MemoryStream imageStream = new MemoryStream(this.ImageData);
try
{
TransformedBitmap shrunkImage = ResizePng(imageStream, targetItemRect.Size);
//DrawingContext.DrawImage will scale an image to fill the size, so modify
// our target rect to be exactly the correct image position on the tile.
Rect targetImageRect = new Rect(targetItemRect.X, targetItemRect.Y,
shrunkImage.PixelWidth, shrunkImage.PixelHeight);
drawingContext.DrawImage(shrunkImage, targetImageRect);
return imageStream; //Return our stream so it can be disposed later.
}
catch
{
if (null != imageStream)
{
imageStream.Dispose();
}
throw;
}
}示例3: DrawTile
protected override void DrawTile(DrawingContext dc, Rect TileRect)
{
if (!_tileImage.IsReady)
dc.DrawRectangle(Brushes.LemonChiffon, null, TileRect);
else
dc.DrawImage(_tileImage.Image, TileRect);
}示例4: OnRender
protected override void OnRender(DrawingContext drawingContext)
{
GuardedToggleSwitch toggleSwitch = Visual as GuardedToggleSwitch;
if (toggleSwitch != null)
{
switch (toggleSwitch.SwitchPosition)
{
case ToggleSwitchPosition.One:
if (toggleSwitch.GuardPosition == GuardPosition.Up)
{
drawingContext.DrawImage(_imageOneGuardUp, _imageRect);
}
else
{
drawingContext.DrawImage(_imageOneGuardDown, _imageRect);
}
break;
case ToggleSwitchPosition.Two:
if (toggleSwitch.GuardPosition == GuardPosition.Up)
{
drawingContext.DrawImage(_imageTwoGuardUp, _imageRect);
}
else
{
drawingContext.DrawImage(_imageTwoGuardDown, _imageRect);
}
break;
}
}
}示例5: OnRender
protected override void OnRender(DrawingContext drawingContext)
{
ToggleSwitch toggleSwitch = Visual as ToggleSwitch;
if (toggleSwitch != null)
{
switch (toggleSwitch.SwitchPosition)
{
case ToggleSwitchPosition.One:
if (toggleSwitch.HasIndicator && toggleSwitch.IndicatorOn && _imageOneIndicatorOn != null)
{
drawingContext.DrawImage(_imageOneIndicatorOn, _imageRect);
}
else
{
drawingContext.DrawImage(_imageOne, _imageRect);
}
break;
case ToggleSwitchPosition.Two:
if (toggleSwitch.HasIndicator && toggleSwitch.IndicatorOn && _imageOneIndicatorOn != null)
{
drawingContext.DrawImage(_imageTwoIndicatorOn, _imageRect);
}
else
{
drawingContext.DrawImage(_imageTwo, _imageRect);
}
break;
}
}
}示例6: OnRender
protected override void OnRender(DrawingContext drawingContext)
{
PushButton pushButton = Visual as PushButton;
if (pushButton.Pushed && _pushedImage != null)
{
drawingContext.DrawImage(_pushedImage, _imageRect);
}
else if (_image != null)
{
drawingContext.DrawImage(_image, _imageRect);
}
if (pushButton.Pushed)
{
drawingContext.PushTransform(new TranslateTransform(pushButton.TextPushOffset.X, pushButton.TextPushOffset.Y));
}
if (pushButton.Glyph != PushButtonGlyph.None)
{
drawingContext.DrawGeometry(_glyphBrush, _glyphPen, _glyphPath);
}
pushButton.TextFormat.RenderText(drawingContext, _textBrush, pushButton.Text, _imageRect);
if (pushButton.Pushed)
{
drawingContext.Pop();
}
}示例7: OnRender
protected override void OnRender(DrawingContext dc)
{
var bitmap = new WriteableBitmap((int)(Screen.PixelWidth * this.Zoom), (int)(Screen.PixelHeight * this.Zoom), 96, 96, PixelFormats.Pbgra32, null);
base.OnRender(dc);
var size = Screen.Tileset.TileSize * this.Zoom;
for (int y = 0; y < Screen.Height; y++)
{
for (int x = 0; x < Screen.Width; x++)
{
var tile = Screen.TileAt(x, y);
var location = tile.Sprite.CurrentFrame.SheetLocation;
var rect = new Rect(0, 0, location.Width, location.Height);
if (_grayscale)
{
var image = SpriteBitmapCache.GetOrLoadFrameGrayscale(Screen.Tileset.SheetPath.Absolute, location);
bitmap.Blit(new Rect(x * size, y * size, size, size), image, rect);
}
else
{
var image = SpriteBitmapCache.GetOrLoadFrame(Screen.Tileset.SheetPath.Absolute, location);
bitmap.Blit(new Rect(x * size, y * size, size, size), image, rect);
}
}
}
dc.DrawImage(bitmap, new Rect(0, 0, bitmap.PixelWidth, bitmap.PixelHeight));
}示例8: OnRender
protected override void OnRender(DrawingContext drawingContext)
{
base.OnRender(drawingContext);
if (sample == null)
return;
var m = PresentationSource.FromVisual(this).CompositionTarget.TransformToDevice;
var dpiX = m.M11;
var dpiY = m.M22;
int width = (int)(ActualWidth * dpiX);
int height = (int)(ActualHeight * dpiY);
var bitmap = new WriteableBitmap(width, height, 96, 96, PixelFormats.Pbgra32, null);
bitmap.Lock();
using (var surface = SKSurface.Create(width, height, SKImageInfo.PlatformColorType, SKAlphaType.Premul, bitmap.BackBuffer, bitmap.BackBufferStride))
{
var skcanvas = surface.Canvas;
skcanvas.Scale((float)dpiX, (float)dpiY);
using (new SKAutoCanvasRestore(skcanvas, true))
{
sample.Method(skcanvas, (int)ActualWidth, (int)ActualHeight);
}
}
bitmap.AddDirtyRect(new Int32Rect(0, 0, width, height));
bitmap.Unlock();
drawingContext.DrawImage(bitmap, new Rect(0, 0, ActualWidth, ActualHeight));
}示例9: OnRender
protected override void OnRender(DrawingContext drawingContext)
{
if (Uniter == null) return;
List<Rect> rects = Uniter.Members
.Select(m => new Rect(m.PointToScreen(new Point(0, 0)), m.RenderSize))
.ToList();
Point p1 = PointFromScreen(new Point(rects.Min(r => r.X),
rects.Min(r => r.Y)));
Point p2 = PointFromScreen(new Point(rects.Max(r => r.X + r.Width),
rects.Max(r => r.Y + r.Height)));
var renderRect = new Rect(p1, p2);
base.OnRender(drawingContext);
double verticalPixelScrollRange = renderRect.Height * Math.Abs(Uniter.VerticalScrollRange);
double canvasHeight = renderRect.Height + verticalPixelScrollRange;
double canvasWidth = renderRect.Width;
double scale = Math.Max(canvasWidth / Source.Width, canvasHeight / Source.Height);
double imageWidth = Source.Width * scale;
double imageHeight = Source.Height * scale;
double y = Uniter.VerticalOffset * verticalPixelScrollRange;
drawingContext.DrawImage(Source, new Rect(renderRect.X, renderRect.Y - y, imageWidth, imageHeight));
}示例10: drawLimb
public void drawLimb(DrawingContext dc, Point p1, Point p2, int margin)
{
dc.PushTransform(new TranslateTransform(p1.X, p1.Y));
Vector diff = p2 - p1;
diff.Normalize();
double angle = Math.Acos(diff.Y) * (180.0 / Math.PI);
if (Double.IsNaN(angle))
angle = 0;
if (Double.IsNaN(diff.X))
diff.X = 0;
dc.PushTransform(new RotateTransform(Math.Sign(diff.X) * (-1) * angle));
Vector diff2 = p2 - p1;
double scale = diff2.Length / (this.Height - 2 * margin);
dc.PushTransform(new ScaleTransform(1, scale));
dc.PushTransform(new TranslateTransform(-this.Width / 2.0, -margin));
dc.DrawImage(this.Image, new Rect(0, 0, this.Width, this.Height));
dc.Pop();
dc.Pop();
dc.Pop();
dc.Pop();
}示例11: DrawImageOperations
private void DrawImageOperations(DrawingContext drawingContext, IEnumerable<DrawingOperation> opeations)
{
foreach (var oper in opeations)
{
drawingContext.DrawImage(oper.Image, oper.DestRect);
}
}示例12: Draw
public void Draw(LayerModel layer, DrawingContext c)
{
var props = (KeyboardPropertiesModel) layer.Properties;
if (string.IsNullOrEmpty(props.GifFile))
return;
if (!File.Exists(props.GifFile))
return;
// Only reconstruct GifImage if the underlying source has changed
if (layer.GifImage == null)
layer.GifImage = new GifImage(props.GifFile);
if (layer.GifImage.Source != props.GifFile)
layer.GifImage = new GifImage(props.GifFile);
var rect = new Rect(layer.AppliedProperties.X*4,
layer.AppliedProperties.Y*4,
layer.AppliedProperties.Width*4,
layer.AppliedProperties.Height*4);
lock (layer.GifImage)
{
var draw = layer.GifImage.GetNextFrame();
c.DrawImage(ImageUtilities.BitmapToBitmapImage(new Bitmap(draw)), rect);
}
}示例13: OnRender
protected override void OnRender(DrawingContext dc)
{
base.OnRender(dc);
if (ScreenShot.IsNotNull())
{
dc.DrawImage(ScreenShot,new Rect(new System.Windows.Point(0,0), new System.Windows.Size((int)this.Width,(int)this.Height)));
}
}示例14: draw
public void draw(DrawingContext dc)
{
leftBall.draw(dc);
rightBall.draw(dc);
dc.DrawImage(scoreBoard, new Rect(new Point(width / 2 - 250, 0), new Point(width / 2, 150)));
leftHoop.draw(dc);
rightHoop.draw(dc);
}示例15: OnRender
/// <summary>
///
/// </summary>
/// <param name="dc"></param>
protected override void OnRender(DrawingContext dc)
{
if (RnaRunner == null)
return;
var bitmapSource = BitmapConverter.Convert(RnaRunner.PixelMap);
dc.DrawImage(bitmapSource, new Rect(0, 0, 600, 600));
}