public void DrawFaceRectangle(Image image, BitmapImage bitmapSource, Emotion[] emotionResult)
{
if (emotionResult != null && emotionResult.Length > 0)
{
DrawingVisual visual = new DrawingVisual();
DrawingContext drawingContext = visual.RenderOpen();
drawingContext.DrawImage(bitmapSource,
new Rect(0, 0, bitmapSource.Width, bitmapSource.Height));
double dpi = bitmapSource.DpiX;
double resizeFactor = 96 / dpi;
foreach (var emotion in emotionResult)
{
Microsoft.ProjectOxford.Common.Rectangle faceRect = emotion.FaceRectangle;
drawingContext.DrawRectangle(
Brushes.Transparent,
new Pen(Brushes.Cyan, 4),
new Rect(
faceRect.Left * resizeFactor,
faceRect.Top * resizeFactor,
faceRect.Width * resizeFactor,
faceRect.Height * resizeFactor)
);
}
drawingContext.Close();
RenderTargetBitmap faceWithRectBitmap = new RenderTargetBitmap(
(int)(bitmapSource.PixelWidth * resizeFactor),
(int)(bitmapSource.PixelHeight * resizeFactor),
96,
96,
PixelFormats.Pbgra32);
faceWithRectBitmap.Render(visual);
image.Source = faceWithRectBitmap;
}
}
internal void Compose()
{
if (false == this.Dirty)
{
return;
}
if (IsRunningHeadless)
{
return;
}
GraphController controller = graphController as GraphController;
IGraphVisualHost visualHost = controller.GetVisualHost();
DrawingVisual visual = visualHost.GetDrawingVisualForNode(this.NodeId);
//TextOptions.SetTextFormattingMode(visual, TextFormattingMode.Display);
//TextOptions.SetTextRenderingMode(visual, TextRenderingMode.Aliased);
DrawingContext drawingContext = visual.RenderOpen();
CultureInfo cultureInfo = new CultureInfo("en-us"); //@TODO(Ben) Move this into a single place and reuse it
//RenderOptions.SetEdgeMode(visual, EdgeMode.Aliased);
if (!dotsFlag.HasFlag(MenuDots.DotsFlag))
{
this.CheckDots();
}
this.ComposeCore(drawingContext, visual);
drawingContext.Close();
if (errorBubble != null)
{
errorBubble.Compose();
}
TranslateTransform nodeTransform = visual.Transform as TranslateTransform;
nodeTransform.X = this.nodePosition.X;
nodeTransform.Y = this.nodePosition.Y;
this.Dirty = false;
}
public void drawCurrent(int[,] gen)
{
diameter = Convert.ToDouble(txt_diameter.Text);
double pixelW = 4, pixelH = 4;
DrawingVisual vis = new DrawingVisual();
DrawingContext dc = vis.RenderOpen();
for (int i = 0; i < h + 2; i++)
{
pixelW = 4;
for (int j = 0; j < w + 2; j++)
{
if (gen[i, j] == 2)
{
dc.DrawEllipse(brushColor[0], blkPen, new System.Windows.Point(pixelW, pixelH), diameter / 2, diameter / 2);
}
else if (gen[i, j] == 1)
{
dc.DrawEllipse(brushColor[1], blkPen, new System.Windows.Point(pixelW, pixelH), diameter / 2, diameter / 2);
}
if (i == (h + 2) / 2 && j == (w - 1) / 2 + 1 && gen[i, j] == 1)
{
dc.DrawEllipse(brushColor[2], blkPen, new System.Windows.Point(pixelW, pixelH), diameter / 2, diameter / 2);
}
if (gen[i, j] == 1 && j == 1 + (w - 1) / 2 && i == (h + 2) / 2 - 1)
{
dc.DrawEllipse(brushColor[2], blkPen, new System.Windows.Point(pixelW, pixelH), diameter / 2, diameter / 2);
}
pixelW += diameter;
}
pixelH += diameter;
}
dc.Close();
RenderTargetBitmap bmp = new RenderTargetBitmap((int)(400 * ((double)num_sand / 400)), (int)(400 * ((double)num_sand / 400)), 96, 96, PixelFormats.Pbgra32);
bmp.Render(vis);
img.Source = bmp;
}
public override void Render()
{
//first work out the angle bracket size
double bondLength = ParentMolecule.Model.XamlBondLength;
double bracketLength = Globals.BracketFactor * bondLength;
//now work out the main area
Brush mainArea = new SolidColorBrush(Colors.Gray);
mainArea.Opacity = MainAreaOpacity;
Brush bracketBrush = ShowInColour ? new SolidColorBrush(Globals.GroupBracketColor) : new SolidColorBrush(Colors.Black);
Pen bracketPen = new Pen(bracketBrush, Globals.BracketThickness);
bracketPen.StartLineCap = PenLineCap.Round;
bracketPen.EndLineCap = PenLineCap.Round;
using (DrawingContext dc = RenderOpen())
{
var inflateFactor = ParentMolecule.Model.XamlBondLength * Globals.GroupInflateFactor;
var bb = BoundingBox;
bb.Inflate(new Size(inflateFactor, inflateFactor));
dc.DrawRectangle(mainArea, null, bb);
Vector right = new Vector(bracketLength, 0);
Vector left = -right;
Vector down = new Vector(0, bracketLength);
Vector up = -down;
dc.DrawLine(bracketPen, bb.BottomLeft, bb.BottomLeft + right);
dc.DrawLine(bracketPen, bb.BottomLeft, bb.BottomLeft + up);
dc.DrawLine(bracketPen, bb.BottomRight, bb.BottomRight + left);
dc.DrawLine(bracketPen, bb.BottomRight, bb.BottomRight + up);
dc.DrawLine(bracketPen, bb.TopLeft, bb.TopLeft + right);
dc.DrawLine(bracketPen, bb.TopLeft, bb.TopLeft + down);
dc.DrawLine(bracketPen, bb.TopRight, bb.TopRight + left);
dc.DrawLine(bracketPen, bb.TopRight, bb.TopRight + down);
dc.Close();
}
}
public RenderTargetBitmap RenderBitmap(FrameworkElement element)
{
double topLeft = 0;
double topRight = 0;
int width = (int)element.ActualWidth;
int height = (int)element.ActualHeight;
double dpiX = 96; // this is the magic number
double dpiY = 96; // this is the magic number
PixelFormat pixelFormat = PixelFormats.Default;
VisualBrush elementBrush = new VisualBrush(element);
DrawingVisual visual = new DrawingVisual();
DrawingContext dc = visual.RenderOpen();
dc.DrawRectangle(elementBrush, null, new Rect(topLeft, topRight, width, height));
dc.Close();
RenderTargetBitmap bitmap = new RenderTargetBitmap(width, height, dpiX, dpiY, pixelFormat);
bitmap.Render(visual);
return(bitmap);
}
// Constructor requires Color argument.
public ColorCell(Color clr)
{
// Create a new DrawingVisual and store as field.
visColor = new DrawingVisual();
DrawingContext dc = visColor.RenderOpen();
// Draw a rectangle with the color argument.
Rect rect = new Rect(new Point(0, 0), sizeCell);
rect.Inflate(-4, -4);
Pen pen = new Pen(SystemColors.ControlTextBrush, 1);
brush = new SolidColorBrush(clr);
dc.DrawRectangle(brush, pen, rect);
dc.Close();
// AddVisualChild is necessary for event routing!
AddVisualChild(visColor);
AddLogicalChild(visColor);
}
private Rectangle CreateIcon(Point origin, out Visual visual)
{
if (_category != null)
{
ImageSource src = NodeCategories.GetIcon(_category);
if (src != null)
{
DrawingVisual icon = new DrawingVisual();
icon.CacheMode = new BitmapCache(1);
DrawingContext context = icon.RenderOpen();
context.DrawImage(src, new Rect(origin.X, origin.Y, _fontSize, _fontSize));
context.Close();
visual = icon;
return(new Rectangle(origin.X, origin.Y, _fontSize, _fontSize));
}
}
visual = null;
return(new Rectangle());
}
private void createDrawing()
{
FormattedText formattedText
= new FormattedText(
text,
CultureInfo.CurrentUICulture,
FlowDirection.LeftToRight,
CreateTypeFace(),
GetFontSize(),
GetForeGround(),
null,
VisualTreeHelper.GetDpi(drawingVisual)
.PixelsPerDip);
lineHeight = formattedText.LineHeight;
DrawingContext drawingContext = drawingVisual.RenderOpen();
drawingContext.DrawText(formattedText, new Point());
drawingContext.Close();
}
// 旗帜
public void CreateDrawingVisualFlag(Brush gBrush, Pen gPen, Point startPoint, Size flagSize)
{
//旗 M0,20 C50,-20 100,40 150,0 L150,100 C100,120 50,80 0,120
PathGeometry flaggeo = new PathGeometry();
PathFigure ffg = new PathFigure();
ffg.StartPoint = new Point(startPoint.X, startPoint.Y + 20);
ffg.Segments.Add(new BezierSegment(new Point(startPoint.X + flagSize.Width / 3, startPoint.Y - 20), new Point(startPoint.X + flagSize.Width * 2 / 3, startPoint.Y + 20), new Point(startPoint.X + flagSize.Width, startPoint.Y), true));
ffg.Segments.Add(new LineSegment(new Point(startPoint.X + flagSize.Width, startPoint.Y + flagSize.Height), true));
ffg.Segments.Add(new BezierSegment(new Point(startPoint.X + flagSize.Width * 2 / 3, startPoint.Y + flagSize.Height + 20), new Point(startPoint.X + flagSize.Width / 3, startPoint.Y + flagSize.Height - 20), new Point(startPoint.X, startPoint.Y + flagSize.Height + 20), true));
flaggeo.Figures.Add(ffg);
flaggeo.Freeze();
DrawingVisual drawingVisual = new DrawingVisual();
DrawingContext drawingContext = drawingVisual.RenderOpen();
drawingContext.DrawGeometry(gBrush, gPen, flaggeo);
drawingContext.Close();
_children.Add(drawingVisual);
}
public void Highlight(List <ClassObject> list)
{
HighlightedObjects.ForEach(v => children.Remove(v));
HighlightedObjects.Clear();
if (list != null)
{
list.ForEach(o =>
{
DrawingVisual visual = new DrawingVisual();
DrawingContext context = visual.RenderOpen();
Color fill = FromClass(o.C);
fill.A = 200;
context.DrawRectangle(new SolidColorBrush(FromClass(o.C)), new Pen(new SolidColorBrush(fill), 3),
new Rect(o.X - 3, o.Y - 3, 6, 6));
context.Close();
this.children.Add(visual);
this.HighlightedObjects.Add(visual);
});
}
}
//Return view as RenderTargetBitmap
public static RenderTargetBitmap GetImage(Canvas view)
{
Size size = new Size(view.ActualWidth, view.ActualHeight);
if (size.IsEmpty)
{
return(null);
}
RenderTargetBitmap result = new RenderTargetBitmap((int)size.Width, (int)size.Height, 96, 96, PixelFormats.Pbgra32);
DrawingVisual drawingvisual = new DrawingVisual();
using (DrawingContext context = drawingvisual.RenderOpen())
{
context.DrawRectangle(new VisualBrush(view), null, new Rect(new Point(), size));
context.Close();
}
result.Render(drawingvisual);
return(result);
}
// Token: 0x0600350B RID: 13579 RVA: 0x000F02E0 File Offset: 0x000EE4E0
private Visual GetVisual(double offsetX, double offsetY)
{
ContainerVisual containerVisual = new ContainerVisual();
DrawingVisual drawingVisual = new DrawingVisual();
containerVisual.Children.Add(drawingVisual);
drawingVisual.Offset = new Vector(offsetX, offsetY);
DrawingContext drawingContext = drawingVisual.RenderOpen();
drawingContext.DrawDrawing(this._page.GetDrawing());
drawingContext.Close();
UIElementCollection children = this._page.Children;
foreach (object obj in children)
{
UIElement old = (UIElement)obj;
this.CloneVisualTree(drawingVisual, old);
}
return(containerVisual);
}
/// <summary>
/// 현재 객체의 그래픽 요소를 비트맵으로 변환합니다.
/// </summary>
/// <param name="element"></param>
/// <returns></returns>
public static RenderTargetBitmap ConverterBitmapImage(FrameworkElement element)
{
DrawingVisual drawingVisual = new DrawingVisual();
DrawingContext drawingContext = drawingVisual.RenderOpen();
// 해당 객체의 그래픽요소로 사각형의 그림을 그립니다.
drawingContext.DrawRectangle(new VisualBrush(element), null,
//new Rect(new Point(0, 0), new Point(element.ActualWidth, element.ActualHeight)));
new Rect(new Point(0, 0), new Point(500, 500)));
drawingContext.Close();
// 비트맵으로 변환합니다.
RenderTargetBitmap target =
//new RenderTargetBitmap((int)element.ActualWidth, (int)element.ActualHeight,
new RenderTargetBitmap(500, 500,
96, 96, System.Windows.Media.PixelFormats.Pbgra32);
target.Render(drawingVisual);
return(target);
}
private void DrawSkeletonOnVideo(CoordinateMapper coordinateMapper, Skeleton skeleton)
{
DrawingVisual drawingVisual = new DrawingVisual();
DrawingContext drawingContext = drawingVisual.RenderOpen();
foreach (Microsoft.Kinect.Joint joint in skeleton.Joints)
{
ColorImagePoint colorImagePoint = coordinateMapper.MapSkeletonPointToColorPoint(
joint.Position, ColorImageFormat.RgbResolution640x480Fps30);
Point point = new Point(colorImagePoint.X, colorImagePoint.Y);
drawingContext.DrawEllipse(new SolidColorBrush(Colors.Red), new Pen(new SolidColorBrush(Colors.White), 3), point, 7, 7);
}
drawingContext.Close();
RenderTargetBitmap renderBmp = new RenderTargetBitmap(640, 480, 96d, 96d, PixelFormats.Pbgra32);
renderBmp.Render(drawingVisual);
skeletonFrame.Source = renderBmp;
}
private DrawingVisual DrawTarget()
{
DrawingVisual drawingVisual = new DrawingVisual();
// Retrieve the DrawingContext in order to create new drawing content.
DrawingContext drawingContext = drawingVisual.RenderOpen();
var height = (Parent as FrameworkElement).ActualHeight;
var width = (Parent as FrameworkElement).ActualWidth;
var pen = new Pen(Application.Current.Resources["ConstellationTargetBrush"] as Brush, 2);
pen.Freeze();
drawingContext.DrawLine(pen, new Point(0, height / 2), new Point(width, height / 2));
drawingContext.DrawLine(pen, new Point(width / 2, 0), new Point(width / 2, height));
drawingContext.Close();
return drawingVisual;
}
public static Icon CreateTaskbarIcon(string text)
{
DrawingVisual dv = new();
using DrawingContext dc = dv.RenderOpen();
FormattedText temperatureFormattedText = new(
(text != null) ? text + "°" : "??",
new System.Globalization.CultureInfo("en-us"),
FlowDirection.LeftToRight,
GetRobotoRegularTypeface(),
11,
System.Windows.Media.Brushes.White,
null,
TextFormattingMode.Ideal,
4.0);
dc.DrawText(temperatureFormattedText, new System.Windows.Point(0, 0));
dc.Close();
return(CreateIcon(16, 16, dv));
}
private void buttonUndo_Click(object sender, RoutedEventArgs e)
{
ptinfos.Clear(); // REM 清除一笔中所有点
CreateNewBitmap();
if ((geos.Count > 0))
{
strokes.RemoveAt(strokes.Count - 1); // REM 清除上一笔
geos.RemoveAt(geos.Count - 1); // REM 清除上一笔
DrawingContext dc = dv.RenderOpen();
foreach (var g in geos)
{
GeometryDrawing drawing = new GeometryDrawing(Brushes.Black, new Pen(Brushes.Black, 1), g);
dc.DrawDrawing(drawing);
}
dc.Close();
bmp.Render(dv);
}
}
public static RenderTargetBitmap GetImage(UserControl view)
{
int qualityFactor = 10;
int dotsPerInch = 96;
Size size = new Size((int)view.ActualWidth * qualityFactor, (int)view.ActualHeight * qualityFactor);
if (size.IsEmpty)
{
return(null);
}
RenderTargetBitmap result = new RenderTargetBitmap((int)size.Width, (int)size.Height, dotsPerInch,
dotsPerInch, PixelFormats.Pbgra32);
DrawingVisual drawingvisual = new DrawingVisual();
using (DrawingContext context = drawingvisual.RenderOpen()) {
context.DrawRectangle(new VisualBrush(view), null, new Rect(new Point(), size));
context.Close();
}
}
private static Tuple <DrawingVisual, SolidColorBrush> CreateEllipse(double size)
{
DrawingVisual retVal = new DrawingVisual();
DrawingContext context = retVal.RenderOpen();
double half = size / 2d;
SolidColorBrush brush = new SolidColorBrush(UtilityWPF.ColorFromHex("80FFFFFF"));
context.DrawEllipse(
brush,
new Pen(new SolidColorBrush(UtilityWPF.ColorFromHex("80000000")), 1),
new Point(0, 0), half, half);
// Persist the drawing content.
context.Close();
return(Tuple.Create(retVal, brush));
}
/// <summary>
/// Generates the underlying renderable visual. This method must be called before assigning this node to a parent element.
/// </summary>
/// <param name="verticalLength">The desired length of the line below this node.</param>
public void GenerateVisual(double verticalLength)
{
// Start drawing
DrawingVisual drawing = new DrawingVisual();
DrawingContext drawingContext = drawing.RenderOpen();
// Draw header
/*drawingContext.DrawRectangle(Brushes.White, new Pen(Brushes.Black, 2), new Rect(0, 0, Width, 20));
* drawingContext.DrawText(_formattedFunctionName, new Point(5, 5));*/
// Draw vertical line
drawingContext.DrawRectangle(Brushes.DarkGray, new Pen(Brushes.DarkGray, 2), new Rect(Width / 2 - 2, 20, 4, verticalLength));
// Finish drawing
drawingContext.Close();
// Save drawing
_visual = drawing;
}
// 倒三角形
public void CreateDrawingTriangle2(Brush rBrush, Pen rPen, Point rCenter, double rWidth, double rHeight)
{
PathGeometry flaggeo = new PathGeometry();
PathFigure ffg = new PathFigure {
StartPoint = new Point(rCenter.X - rWidth / 2, rCenter.Y - rHeight)
};
ffg.Segments.Add(new LineSegment(new Point(rCenter.X, rCenter.Y), true));
ffg.Segments.Add(new LineSegment(new Point(rCenter.X + rWidth / 2, rCenter.Y - rHeight), true));
ffg.Segments.Add(new LineSegment(new Point(rCenter.X - rWidth / 2, rCenter.Y - rHeight), true));
flaggeo.Figures.Add(ffg);
flaggeo.Freeze();
DrawingVisual drawingVisual = new DrawingVisual();
DrawingContext drawingContext = drawingVisual.RenderOpen();
drawingContext.DrawGeometry(rBrush, rPen, flaggeo);
drawingContext.Close();
_children.Add(drawingVisual);
}
/// <summary>
/// 保存对象截图到ImageSource
/// </summary>
/// <param name="ui"></param>
/// <param name="fileName"></param>
/// <param name="pixelFormat"></param>
public static RenderTargetBitmap ToImageSource(this FrameworkElement ui, PixelFormat pixelFormat)
{
DrawingVisual drawingVisual = new DrawingVisual();
//drawingVisual 的作用是校正Margin 和 Left Top
using (DrawingContext context = drawingVisual.RenderOpen())
{
VisualBrush brush = new VisualBrush(ui)
{
Stretch = Stretch.None
};
context.DrawRectangle(brush, null, new Rect(0, 0, ui.ActualWidth, ui.ActualHeight));
context.Close();
}
//使用drawingVisual渲染
RenderTargetBitmap bmp = new RenderTargetBitmap((Int32)ui.ActualWidth, (Int32)ui.ActualHeight, SystemDpiX, SystemDpiY, pixelFormat);
bmp.Render(drawingVisual);
return(bmp);
}
public static BitmapImage StringToBitmap(string str)
{
var text = new FormattedText(str,
CultureInfo.GetCultureInfo("en-us"),
FlowDirection.LeftToRight,
new Typeface("Verdana"),
30, System.Windows.Media.Brushes.Green);
DrawingVisual drawingVisual = new DrawingVisual();
DrawingContext drawingContext = drawingVisual.RenderOpen();
drawingContext.DrawRectangle(System.Windows.Media.Brushes.Transparent, null, new Rect(0, 0, 200, 100));
drawingContext.DrawText(text, new System.Windows.Point(0, 0));
drawingContext.Close();
RenderTargetBitmap bmp = new RenderTargetBitmap((int)text.Width, (int)text.Height, 100, 100, PixelFormats.Pbgra32);
bmp.Render(drawingVisual);
return(bmp.ToWinFormsBitmap().ToMediaBitmap());
}
public bool Draw()
{
if (_drawValid)
{
return(false);
}
DrawingContext dc = RenderOpen();
try {
var formattedText = GetFormattedText();
Size = new Size(formattedText.Width, formattedText.Height);
dc.DrawText(formattedText, new Point());
_drawValid = true;
return(true);
} finally {
dc.Close();
}
}
public override void Perform()
{
TextFormatter formatter = TextFormatter.Create();
ListBox listBox = new ListBox();
DoubleAnimation anim = new DoubleAnimation(MinScale, MaxScale, TimeSpan.FromMilliseconds(AnimTime));
anim.AutoReverse = true;
ScaleTransform st = new ScaleTransform(MinScale, MinScale);
for (int i = 0; i < TextToFormat.Length; i++)
{
TextSource.Text = TextToFormat[i];
DrawingGroup drawingGroup = new DrawingGroup();
DrawingContext dc = drawingGroup.Open();
dc.PushTransform(st);
GenerateFormattedText(TextSource, dc, formatter);
dc.Close();
Image image = new Image();
DrawingImage drawingImage = new DrawingImage(drawingGroup);
image.Source = drawingImage;
image.Stretch = Stretch.None;
image.HorizontalAlignment = HorizontalAlignment.Left;
image.VerticalAlignment = VerticalAlignment.Top;
image.Margin = new Thickness(1, 1, 1, 10);
listBox.Items.Add(image);
}
st.BeginAnimation(ScaleTransform.ScaleXProperty, anim);
st.BeginAnimation(ScaleTransform.ScaleYProperty, anim);
WindowSource.Width = Microsoft.Test.Display.Monitor.Dpi.x * 9; // 9"
WindowSource.Height = Microsoft.Test.Display.Monitor.Dpi.y * 6; // 6"
listBox.Height = WindowSource.Height;
WindowSource.Content = listBox;
DispatcherHelper.DoEvents(AnimTime * 2);
}
protected override Effect GetEffect(ImageGenerationContext context, FastBitmap source)
{
// Fill temporary graphics buffer with mask (currently always a rectangle).
DrawingVisual dv = new DrawingVisual
{
Effect = new BlurEffect
{
Radius = Radius,
KernelType = KernelType.Gaussian
}
};
DrawingContext dc = dv.RenderOpen();
dc.DrawRectangle(new SolidColorBrush(SWMColors.Transparent), null, new Rect(0, 0, source.Width, source.Height));
switch (Shape)
{
case FeatherShape.Rectangle:
dc.DrawRectangle(new SolidColorBrush(SWMColors.White), null, new Rect(Radius, Radius, source.Width - Radius * 2, source.Height - Radius * 2));
break;
case FeatherShape.Oval:
dc.DrawEllipse(new SolidColorBrush(SWMColors.White), null, new Point(source.Width / 2.0, source.Height / 2.0), source.Width / 2 - Radius * 2, source.Height / 2 - Radius * 2);
break;
default:
throw new NotSupportedException();
}
dc.Close();
RenderTargetBitmap rtb = RenderTargetBitmapUtility.CreateRenderTargetBitmap(source.Width, source.Height);
rtb.Render(dv);
Brush alphaMask = new ImageBrush(rtb);
return(new FeatherEffect
{
AlphaMask = alphaMask
});
}
public static BitmapSource CaptureScreen(Visual target, int pixelWidth, int pixelHeight)
{
try
{
Logger.LogFuncUp();
if (target == null || pixelWidth <= 0 || pixelHeight <= 0)
{
return(null);
}
double dpiX = 96.0 * pixelWidth / (target as FrameworkElement).ActualWidth;
double dpiY = 96.0 * pixelHeight / (target as FrameworkElement).ActualHeight;
DrawingVisual drawingVisual = new DrawingVisual();
using (DrawingContext context = drawingVisual.RenderOpen())
{
VisualBrush brush = new VisualBrush(target)
{
Stretch = Stretch.None
};
context.DrawRectangle(brush, null, new Rect(0, 0, (target as FrameworkElement).ActualWidth, (target as FrameworkElement).ActualHeight));
context.Close();
}
//delete this capture method(the position if the grid changed, the capture will capture the wrong area)
RenderTargetBitmap rtb = new RenderTargetBitmap(pixelWidth, pixelHeight, dpiX, dpiY, PixelFormats.Pbgra32);
rtb.Render(drawingVisual);
//rtb.Render(target);
Logger.LogFuncDown();
return(rtb);
}
catch (Exception ex)
{
Logger.LogFuncException(ex.Message + ex.StackTrace);
}
return(null);
}
public static void CreateBitmap(BitmapSource bgImage, string title, string savePath)
{
//创建一个RenderTargetBitmap 对象，将WPF中的Visual对象输出
RenderTargetBitmap composeImage = new RenderTargetBitmap(bgImage.PixelWidth, bgImage.PixelHeight, bgImage.DpiX, bgImage.DpiY, PixelFormats.Default);
FormattedText signatureTxt = new FormattedText(title,
System.Globalization.CultureInfo.CurrentCulture,
System.Windows.FlowDirection.LeftToRight,
new Typeface(System.Windows.SystemFonts.MessageFontFamily, FontStyles.Normal, FontWeights.Normal, FontStretches.Normal),
14,
System.Windows.Media.Brushes.Black);
signatureTxt.MaxTextWidth = 110;
DrawingVisual drawingVisual = new DrawingVisual();
DrawingContext drawingContext = drawingVisual.RenderOpen();
drawingContext.DrawImage(bgImage, new Rect(0, 0, bgImage.Width, bgImage.Height));
////计算签名的位置
//double x2 = (bgImage.Width / 2 - signatureTxt.Width) / 2;
//double y2 = 10;
drawingContext.DrawText(signatureTxt, new System.Windows.Point(15, 15));
drawingContext.Close();
composeImage.Render(drawingVisual);
//定义一个JPG编码器
JpegBitmapEncoder bitmapEncoder = new JpegBitmapEncoder();
//加入第一帧
bitmapEncoder.Frames.Add(BitmapFrame.Create(composeImage));
string directoryPath = System.IO.Path.GetDirectoryName(savePath);
if (!Directory.Exists(directoryPath))
{
Directory.CreateDirectory(directoryPath);
}
//保存至文件（不会修改源文件，将修改后的图片保存至程序目录下）
using (FileStream fileStream = new FileStream(savePath, FileMode.Create, FileAccess.ReadWrite))
{
bitmapEncoder.Save(fileStream);
}
}
/// <summary>
/// Draw the carrier
/// </summary>
/// <param name="drawingVisual"></param>
override protected void Render(DrawingVisual drawingVisual)
{
DrawingContext drawingContext = drawingVisual.RenderOpen();
//if (Grid == Carrier.undefinedGrid)
// return;
//1 border
int xPos = GetBoundingRectXStart(_carrier.GridID);//
int yPos = GetBoundingRectYStart();
Size sz = new Size(_carrier.Dimension.XLength, _carrier.Dimension.YLength);
Brush backGroundBrush = new SolidColorBrush(Color.FromArgb(128, _carrier.BackgroundColor.B, _carrier.BackgroundColor.G, _carrier.BackgroundColor.R));
Color border = _isSelected ? Colors.Blue : Colors.Black;
VisualCommon.DrawRect(xPos, yPos, sz, drawingContext, border, backGroundBrush);
DrawGrid(this.Grid, drawingContext);
//2 each site
for (int i = 0; i < _carrier.Sites.Count; i++)
{
var fillBrsuh = new SolidColorBrush(Color.FromArgb(128, 255, 255, 255));
var site = _carrier.Sites[i];
int xSite = (int)(site.XOffset + xPos);
int ySite = (int)(site.YOffset + yPos);
border = _isSelected ? Colors.Blue : Colors.Brown;
bool bNeedHighLight = i == _highLightSiteIndex;
Size tmpSZ = new Size(site.XSize, site.YSize);
Rect rc = new Rect(new Point(xSite, ySite), tmpSZ);
if (bNeedHighLight)
{
BlowUp(ref rc);
border = Colors.DarkGreen;
fillBrsuh = new SolidColorBrush(Color.FromArgb(128, 255, 255, 0));
}
VisualCommon.DrawRect((int)rc.X, (int)rc.Y, rc.Size, drawingContext, border, fillBrsuh);
}
drawingContext.Close();
}
private void BackgroundGenerateImage()
{
GenerationMutex.WaitOne();
try
{
MediaPlayer player = new MediaPlayer {
Volume = 0, ScrubbingEnabled = true
};
player.Open(new Uri(Path, UriKind.Relative));
while (player.NaturalDuration.HasTimeSpan == false)
{
;
}
player.Position = TimeSpan.FromSeconds(player.NaturalDuration.TimeSpan.TotalSeconds / 2);
System.Threading.Thread.Sleep(1000);
RenderTargetBitmap rtb = new RenderTargetBitmap(320, 180, 96, 96, PixelFormats.Pbgra32);
DrawingVisual dv = new DrawingVisual();
DrawingContext dc = dv.RenderOpen();
dc.DrawVideo(player, new Rect(0, 0, 320, 240));
dc.Close();
rtb.Render(dv);
JpegBitmapEncoder encoder = new JpegBitmapEncoder();
MemoryStream memoryStream = new MemoryStream();
Image = new BitmapImage();
encoder.Frames.Add(BitmapFrame.Create(rtb));
encoder.Save(memoryStream);
Image.BeginInit();
Image.StreamSource = new MemoryStream(memoryStream.ToArray());
Image.EndInit();
Image.Freeze();
memoryStream.Close();
player.Close();
}
catch (Exception)
{
Image = DefaultImageGetter.Instance.Movie;
}
GenerationMutex.ReleaseMutex();
}
