C# Media.DrawingImage类代码示例

 private void Display_Loaded(object sender, RoutedEventArgs e)
 {
     drawingGroup = new DrawingGroup();
     var imageSource = new DrawingImage(drawingGroup);
     Display.Source = imageSource;
     Redraw();
 }

 public HudRenderer(DrawingGroup drawGroup, DrawingImage drawImage, int width, int height)
 {
     drawingGroup = drawGroup;
     drawingImage = drawImage;
     displayHeight = height;
     displayWidth = width;
 }

        /// <summary>
        /// Within the given line add the scarlet box behind the a
        /// </summary>
        private void CreateVisuals(ITextViewLine line)
        {
            //grab a reference to the lines in the current TextView 
            IWpfTextViewLineCollection textViewLines = _view.TextViewLines;
            int start = line.Start;
            int end = line.End;

            //Loop through each character, and place a box around any a 
            for (int i = start; (i < end); ++i)
            {
                if (_view.TextSnapshot[i] == 'a')
                {
                    SnapshotSpan span = new SnapshotSpan(_view.TextSnapshot, Span.FromBounds(i, i + 1));
                    Geometry g = textViewLines.GetMarkerGeometry(span);
                    if (g != null)
                    {
                        GeometryDrawing drawing = new GeometryDrawing(_brush, _pen, g);
                        drawing.Freeze();

                        DrawingImage drawingImage = new DrawingImage(drawing);
                        drawingImage.Freeze();

                        Image image = new Image();
                        image.Source = drawingImage;

                        //Align the image with the top of the bounds of the text geometry
                        Canvas.SetLeft(image, g.Bounds.Left);
                        Canvas.SetTop(image, g.Bounds.Top);

                        _layer.AddAdornment(AdornmentPositioningBehavior.TextRelative, span, null, image, null);
                    }
                }
            }
        }

        void MainWindow_Loaded(object sender, RoutedEventArgs e)
        {
            if (KinectSensor.KinectSensors.Count > 0)
            {
                this.sensor = KinectSensor.KinectSensors[0];

                if (!this.sensor.IsRunning)
                {
                    this.sensor.DepthStream.Range = DepthRange.Near;
                    this.sensor.DepthFrameReady += sensor_DepthFrameReady;
                    this.sensor.DepthStream.Enable();

                    
                    this.sensor.SkeletonStream.EnableTrackingInNearRange = true;
                    this.sensor.SkeletonStream.TrackingMode = SkeletonTrackingMode.Seated;
                    this.sensor.SkeletonFrameReady += sensor_SkeletonFrameReady;
                    this.sensor.SkeletonStream.Enable();

                    this.sensor.Start();
                }

                this.drawingGroup = new DrawingGroup();
                this.imageSource = new DrawingImage(this.drawingGroup);
                this.SkeletonController.Source = this.imageSource;
            }
        }

        private void textBox_TextChanged(object sender, System.Windows.Controls.TextChangedEventArgs e)
        {
            BitmapImage bmImage = new BitmapImage();
            // textBox.PreviewKeyDown += EnterClicked;
            if (image != null)
            {

                bmImage = new BitmapImage(new Uri(hh));


                var visual = new DrawingVisual();

                using (DrawingContext drawingContext = visual.RenderOpen())
                {
                    string objTextBox = textBox.Text;
                    drawingContext.DrawImage(bmImage, new Rect(0, 0, bmImage.Width, bmImage.Height));
                    drawingContext.DrawText(
                        new FormattedText(objTextBox, CultureInfo.InvariantCulture, FlowDirection.LeftToRight,
                            new Typeface(comboBox.Text), Convert.ToInt32(comboBox1.SelectedItem), Brushes.Black), new Point(0, 250));

                }

                var imagei = new DrawingImage(visual.Drawing);

                image.Source = imagei;

            }
        }

        /// <summary>
        /// Creates a square image and attaches an event handler to the layout changed event that
        /// adds the the square in the upper right-hand corner of the TextView via the adornment layer
        /// </summary>
        /// <param name="view">The <see cref="IWpfTextView"/> upon which the adornment will be drawn</param>
        public TranslationAdornment(IWpfTextView view)
        {
            _view = view;

            Brush brush = new SolidColorBrush(Colors.BlueViolet);
            brush.Freeze();
            Brush penBrush = new SolidColorBrush(Colors.Red);
            penBrush.Freeze();
            Pen pen = new Pen(penBrush, 0.5);
            pen.Freeze();

            //draw a square with the created brush and pen
            System.Windows.Rect r = new System.Windows.Rect(0, 0, 30, 30);
            Geometry g = new RectangleGeometry(r);
            GeometryDrawing drawing = new GeometryDrawing(brush, pen, g);
            drawing.Freeze();

            DrawingImage drawingImage = new DrawingImage(drawing);
            drawingImage.Freeze();

            _image = new Image();
            _image.Source = drawingImage;

            //Grab a reference to the adornment layer that this adornment should be added to
            _adornmentLayer = view.GetAdornmentLayer("TranslationAdornment");

            _view.ViewportHeightChanged += delegate { this.onSizeChange(); };
            _view.ViewportWidthChanged += delegate { this.onSizeChange(); };
        }

        public void AddDecorationError(BasePropertyDeclarationSyntax _property, string textFull, string toolTipText, FixErrorCallback errorCallback)
        {
            var lineSpan = tree.GetLineSpan(_property.Span, usePreprocessorDirectives: false);
            int lineNumber = lineSpan.StartLinePosition.Line;
            var line = _textView.TextSnapshot.GetLineFromLineNumber(lineNumber);
            var textViewLine = _textView.GetTextViewLineContainingBufferPosition(line.Start);
            int startSpace = textFull.Length - textFull.TrimStart().Length;
            int endSpace = textFull.Length - textFull.TrimEnd().Length;

            SnapshotSpan span = new SnapshotSpan(_textView.TextSnapshot, Span.FromBounds(line.Start.Position + startSpace, line.End.Position - endSpace));
            Geometry g = _textView.TextViewLines.GetMarkerGeometry(span);
            if (g != null)
            {
                rects.Add(g.Bounds);

                GeometryDrawing drawing = new GeometryDrawing(_brush, _pen, g);
                drawing.Freeze();

                DrawingImage drawingImage = new DrawingImage(drawing);
                drawingImage.Freeze();

                Image image = new Image();
                image.Source = drawingImage;
                //image.Visibility = Visibility.Hidden;

                Canvas.SetLeft(image, g.Bounds.Left);
                Canvas.SetTop(image, g.Bounds.Top);
                _layer.AddAdornment(AdornmentPositioningBehavior.TextRelative, span, null, image, (t, ui) =>
                {
                    rects.Remove(g.Bounds);
                });

                DrawIcon(span, g.Bounds.Left - 30, g.Bounds.Top, toolTipText, errorCallback);
            }
        }

        /// <summary>
        /// Initializes a new instance of the KinectBodyView class
        /// </summary>
        /// <param name="kinectSensor">Active instance of the KinectSensor</param>
        public KinectBodyView(KinectSensor kinectSensor)
        {
            if (kinectSensor == null)
            {
                throw new ArgumentNullException("kinectSensor");
            }

            // get the coordinate mapper
            _coordinateMapper = kinectSensor.CoordinateMapper;

            // get the depth (display) extents
            FrameDescription frameDescription = kinectSensor.DepthFrameSource.FrameDescription;

            // get size of joint space
            _displayWidth = frameDescription.Width;
            _displayHeight = frameDescription.Height;



            // Create the drawing group we'll use for drawing
            _drawingGroup = new DrawingGroup();

            // Create an image source that we can use in our image control
            _imageSource = new DrawingImage(_drawingGroup);
        }

        void CreateAndAddAdornment(ITextViewLine line, SnapshotSpan span, Brush brush, bool extendToRight)
        {
            var markerGeometry = _view.TextViewLines.GetMarkerGeometry(span);

            double left = markerGeometry.Bounds.Left;
            double width = extendToRight ? _view.ViewportWidth + _view.MaxTextRightCoordinate : markerGeometry.Bounds.Width;

            Rect rect = new Rect(left, line.Top, width, line.Height);

            RectangleGeometry geometry = new RectangleGeometry(rect);

            GeometryDrawing drawing = new GeometryDrawing(brush, new Pen(), geometry);
            drawing.Freeze();

            DrawingImage drawingImage = new DrawingImage(drawing);
            drawingImage.Freeze();

            Image image = new Image();
            image.Source = drawingImage;

            Canvas.SetLeft(image, geometry.Bounds.Left);
            Canvas.SetTop(image, geometry.Bounds.Top);

            _layer.AddAdornment(AdornmentPositioningBehavior.TextRelative, span, null, image, null);
        }

 public ProjectorViewWindow()
 {
     InitializeComponent();
     drawingGroup = new DrawingGroup();
     var imageSource = new DrawingImage(drawingGroup);
     Display.Source = imageSource;
 }

        public void Init()
        {
            DrawingGroup dg = new DrawingGroup();
            ImageDrawing id = new ImageDrawing(UnderlayImage, new Rect(0, 0, UnderlayImage.PixelWidth, UnderlayImage.PixelHeight));
            dg.Children.Add(id);

            pointsGeometryGroup = new GeometryGroup();
            linesGeometryGroup = new GeometryGroup();
            middlePointGeoGrp = new GeometryGroup();
            if (points != null)
            {
                SetPointsGeometry();
            }

            GeometryDrawing gd = new GeometryDrawing(Brushes.Blue, null, pointsGeometryGroup);
            dg.Children.Add(gd);

            GeometryDrawing gd2 = new GeometryDrawing(null, new Pen(Brushes.LightGreen,3), linesGeometryGroup);
            dg.Children.Add(gd2);

            GeometryDrawing gd1 = new GeometryDrawing(Brushes.Red, null, middlePointGeoGrp);
            dg.Children.Add(gd1);

            Brush b = new SolidColorBrush(Colors.Red);
            b.Opacity = 0.5;
            mousePointGeometryDrwaing = new GeometryDrawing(b, null, null);
            dg.Children.Add(mousePointGeometryDrwaing);

            DrawingImage di = new DrawingImage(dg);
            this.Source = di;

            chosenPoint = -1;
        }

 public MainWindow()
 {
     drawingGroup = new DrawingGroup();
     imageSource = new DrawingImage( drawingGroup );
     this.DataContext = this;
     InitializeComponent();
 }

		public static ImageSource GetImageSourceFromAxoColor(AxoColor axoColor, int width, int height)
		{
			var innerRect = new Rect(0, 0, width, height);
			var geometryDrawing = new GeometryDrawing() { Geometry = new RectangleGeometry(innerRect) };
			geometryDrawing.Brush = new SolidColorBrush(GuiHelper.ToWpf(axoColor));
			DrawingImage geometryImage = new DrawingImage(geometryDrawing);
			geometryImage.Freeze(); // Freeze the DrawingImage for performance benefits.
			return geometryImage;
		}

        private Manager()
        {
            #region Creates Loading Threads

            _loaderThreadForThumbnails = new Thread(LoaderThreadThumbnails)
            {
                IsBackground = true,
                Priority = ThreadPriority.BelowNormal
            };
            _loaderThreadForThumbnails.Start();

            _loaderThreadForNormalSize = new Thread(LoaderThreadNormalSize)
            {
                IsBackground = true,
                Priority = ThreadPriority.BelowNormal
            };
            _loaderThreadForNormalSize.Start();

            #endregion

            Application.Current.Exit += Current_Exit;

            #region Loading Images from Resources

            var resourceDictionary = new ResourceDictionary
            {
                Source = new Uri("csCommon;component/Resources/Styles/Resources.xaml", UriKind.Relative)
            };
            _loadingImage = resourceDictionary["ImageLoading"] as DrawingImage;
            _loadingImage.Freeze();
            _errorThumbnail = resourceDictionary["ImageError"] as DrawingImage;
            _errorThumbnail.Freeze();

            #endregion

            # region Create Loading Animation

            ScaleTransform scaleTransform = new ScaleTransform(0.5, 0.5);
            SkewTransform skewTransform = new SkewTransform(0, 0);
            RotateTransform rotateTransform = new RotateTransform(0);
            TranslateTransform translateTransform = new TranslateTransform(0, 0);

            TransformGroup group = new TransformGroup();
            group.Children.Add(scaleTransform);
            group.Children.Add(skewTransform);
            group.Children.Add(rotateTransform);
            group.Children.Add(translateTransform);

            DoubleAnimation doubleAnimation = new DoubleAnimation(0, 359, new TimeSpan(0, 0, 0, 1));
            doubleAnimation.RepeatBehavior = RepeatBehavior.Forever;

            rotateTransform.BeginAnimation(RotateTransform.AngleProperty, doubleAnimation);

            _loadingAnimationTransform = group;

            #endregion
        }

        /// <summary></summary>
        /// <param name="kinectConnector"></param>
        public KinectBodyDrawer(KinectConnector kinectConnector)
        {
            this.kinectConnector = kinectConnector;

            drawingGroup = new DrawingGroup();
            ImageSource = new DrawingImage(drawingGroup);

            kinectConnector.BodyUpdated += (_, e) => Draw(e.Body);
        }