//------------------------------------------------------
//
// Public Properties
//
//------------------------------------------------------
private static void GlyphRunPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
GlyphRunDrawing target = ((GlyphRunDrawing)d);
GlyphRun oldV = (GlyphRun)e.OldValue;
GlyphRun newV = (GlyphRun)e.NewValue;
System.Windows.Threading.Dispatcher dispatcher = target.Dispatcher;
if (dispatcher != null)
{
DUCE.IResource targetResource = (DUCE.IResource)target;
using (CompositionEngineLock.Acquire())
{
int channelCount = targetResource.GetChannelCount();
for (int channelIndex = 0; channelIndex < channelCount; channelIndex++)
{
DUCE.Channel channel = targetResource.GetChannel(channelIndex);
Debug.Assert(!channel.IsOutOfBandChannel);
Debug.Assert(!targetResource.GetHandle(channel).IsNull);
target.ReleaseResource(oldV, channel);
target.AddRefResource(newV, channel);
}
}
}
target.PropertyChanged(GlyphRunProperty);
}
public static ImageSource ToFontAwesomeIcon(this string text, Brush foreBrush, FontStyle fontStyle, FontWeight fontWeight, FontStretch fontStretch)
{
var fontFamily = new FontFamily("/GitWorkItems;component/Resources/#FontAwesome");
if (fontFamily != null && !String.IsNullOrEmpty(text))
{
//premier essai, on charge la police directement
Typeface typeface = new Typeface(fontFamily, fontStyle, fontWeight, fontStretch);
GlyphTypeface glyphTypeface;
if (!typeface.TryGetGlyphTypeface(out glyphTypeface))
{
//si ça ne fonctionne pas (et pour le mode design dans certains cas) on ajoute l'uri pack://application
typeface = new Typeface(new FontFamily(new Uri("pack://application:,,,"), fontFamily.Source), fontStyle, fontWeight, fontStretch);
if (!typeface.TryGetGlyphTypeface(out glyphTypeface))
throw new InvalidOperationException("No glyphtypeface found");
}
//détermination des indices/tailles des caractères dans la police
ushort[] glyphIndexes = new ushort[text.Length];
double[] advanceWidths = new double[text.Length];
for (int n = 0; n < text.Length; n++)
{
ushort glyphIndex;
try
{
glyphIndex = glyphTypeface.CharacterToGlyphMap[text[n]];
}
catch (Exception)
{
glyphIndex = 42;
}
glyphIndexes[n] = glyphIndex;
double width = glyphTypeface.AdvanceWidths[glyphIndex] * 1.0;
advanceWidths[n] = width;
}
try
{
//création de l'objet DrawingImage (compatible avec Imagesource) à partir d'un glyphrun
GlyphRun gr = new GlyphRun(glyphTypeface, 0, false, 1.0, glyphIndexes,
new Point(0, 0), advanceWidths, null, null, null, null, null, null);
GlyphRunDrawing glyphRunDrawing = new GlyphRunDrawing(foreBrush, gr);
return new DrawingImage(glyphRunDrawing);
}
catch (Exception ex)
{
// ReSharper disable LocalizableElement
Console.WriteLine("Error in generating Glyphrun : " + ex.Message);
// ReSharper restore LocalizableElement
}
}
return null;
}
private static void ForegroundBrushPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
// The first change to the default value of a mutable collection property (e.g. GeometryGroup.Children)
// will promote the property value from a default value to a local value. This is technically a sub-property
// change because the collection was changed and not a new collection set (GeometryGroup.Children.
// Add versus GeometryGroup.Children = myNewChildrenCollection). However, we never marshalled
// the default value to the compositor. If the property changes from a default value, the new local value
// needs to be marshalled to the compositor. We detect this scenario with the second condition
// e.OldValueSource != e.NewValueSource. Specifically in this scenario the OldValueSource will be
// Default and the NewValueSource will be Local.
if (e.IsASubPropertyChange &&
(e.OldValueSource == e.NewValueSource))
{
return;
}
GlyphRunDrawing target = ((GlyphRunDrawing)d);
Brush oldV = (Brush)e.OldValue;
Brush newV = (Brush)e.NewValue;
System.Windows.Threading.Dispatcher dispatcher = target.Dispatcher;
if (dispatcher != null)
{
DUCE.IResource targetResource = (DUCE.IResource)target;
using (CompositionEngineLock.Acquire())
{
int channelCount = targetResource.GetChannelCount();
for (int channelIndex = 0; channelIndex < channelCount; channelIndex++)
{
DUCE.Channel channel = targetResource.GetChannel(channelIndex);
Debug.Assert(!channel.IsOutOfBandChannel);
Debug.Assert(!targetResource.GetHandle(channel).IsNull);
target.ReleaseResource(oldV, channel);
target.AddRefResource(newV, channel);
}
}
}
target.PropertyChanged(ForegroundBrushProperty);
}
static GraphViewWpf()
{
var glyphRun = BuildGlyphRun(" Busy with rendering...");
var glyphRunDrawing = new GlyphRunDrawing(Brushes.Lavender, glyphRun);
var tileBrush = new DrawingBrush();
tileBrush.Drawing = glyphRunDrawing;
tileBrush.Viewbox = new Rect(0, 0, glyphRunDrawing.Bounds.Right * 1.1, glyphRunDrawing.Bounds.Bottom * 1.5);
tileBrush.ViewboxUnits = BrushMappingMode.Absolute;
tileBrush.Viewport = glyphRunDrawing.Bounds;
tileBrush.ViewportUnits = BrushMappingMode.Absolute;
tileBrush.TileMode = TileMode.Tile;
var drawingRectangle = new RectangleGeometry(new Rect(0, 0, 2000, 2000));
var drawing = new GeometryDrawing(tileBrush, null, drawingRectangle);
_busyWithRenderingDrawing = new DrawingImage(drawing);
}
private double ChangeGlyphOrientation(GlyphRunDrawing glyphDrawing,
double baselineShiftX, double baselineShiftY, bool isLatin)
{
if (glyphDrawing == null)
{
return 0;
}
GlyphRun glyphRun = glyphDrawing.GlyphRun;
GlyphRun verticalRun = new GlyphRun();
ISupportInitialize glyphInit = verticalRun;
glyphInit.BeginInit();
verticalRun.IsSideways = true;
List<double> advancedHeights = null;
double totalHeight = 0;
IList<UInt16> glyphIndices = glyphRun.GlyphIndices;
int advancedCount = glyphIndices.Count;
//{
// double textHeight = glyphRun.ComputeInkBoundingBox().Height + glyphRun.ComputeAlignmentBox().Height;
// textHeight = textHeight / 2.0d;
// totalHeight = advancedCount * textHeight;
// advancedHeights = new List<double>(advancedCount);
// for (int k = 0; k < advancedCount; k++)
// {
// advancedHeights.Add(textHeight);
// }
//}
advancedHeights = new List<double>(advancedCount);
IDictionary<ushort, double> allGlyphHeights = glyphRun.GlyphTypeface.AdvanceHeights;
double fontSize = glyphRun.FontRenderingEmSize;
for (int k = 0; k < advancedCount; k++)
{
double tempValue = allGlyphHeights[glyphIndices[k]] * fontSize;
advancedHeights.Add(tempValue);
totalHeight += tempValue;
}
Point baselineOrigin = glyphRun.BaselineOrigin;
if (isLatin)
{
baselineOrigin.X += baselineShiftX;
baselineOrigin.Y += baselineShiftY;
}
//verticalRun.AdvanceWidths = glyphRun.AdvanceWidths;
verticalRun.AdvanceWidths = advancedHeights;
verticalRun.BaselineOrigin = baselineOrigin;
verticalRun.BidiLevel = glyphRun.BidiLevel;
verticalRun.CaretStops = glyphRun.CaretStops;
verticalRun.Characters = glyphRun.Characters;
verticalRun.ClusterMap = glyphRun.ClusterMap;
verticalRun.DeviceFontName = glyphRun.DeviceFontName;
verticalRun.FontRenderingEmSize = glyphRun.FontRenderingEmSize;
verticalRun.GlyphIndices = glyphRun.GlyphIndices;
verticalRun.GlyphOffsets = glyphRun.GlyphOffsets;
verticalRun.GlyphTypeface = glyphRun.GlyphTypeface;
verticalRun.Language = glyphRun.Language;
glyphInit.EndInit();
glyphDrawing.GlyphRun = verticalRun;
return totalHeight;
}
private static ImageSource CreateGlyph(string text, FontFamily fontFamily, FontStyle fontStyle, FontWeight fontWeight, FontStretch fontStretch, Brush foreBrush)
{
if (fontFamily != null && !string.IsNullOrEmpty(text))
{
var typeface = new Typeface(fontFamily, fontStyle, fontWeight, fontStretch);
GlyphTypeface glyphTypeface;
if (!typeface.TryGetGlyphTypeface(out glyphTypeface))
{
throw Log.ErrorAndCreateException<InvalidOperationException>("No glyph type face found");
}
var glyphIndexes = new ushort[text.Length];
var advanceWidths = new double[text.Length];
for (var i = 0; i < text.Length; i++)
{
ushort glyphIndex;
try
{
var key = text[i];
if (!glyphTypeface.CharacterToGlyphMap.TryGetValue(key, out glyphIndex))
{
glyphIndex = 42;
}
}
catch (Exception)
{
glyphIndex = 42;
}
glyphIndexes[i] = glyphIndex;
var width = glyphTypeface.AdvanceWidths[glyphIndex] * 1.0;
advanceWidths[i] = width;
}
try
{
var glyphRun = new GlyphRun(glyphTypeface, 0, false, RenderingEmSize, glyphIndexes, new Point(0, 0), advanceWidths, null, null, null, null, null, null);
var glyphRunDrawing = new GlyphRunDrawing(foreBrush, glyphRun);
//TextOptions.SetTextRenderingMode(glyphRunDrawing, TextRenderingMode.Aliased);
var drawingImage = new DrawingImage(glyphRunDrawing);
//TextOptions.SetTextRenderingMode(drawingImage, TextRenderingMode.Aliased);
return drawingImage;
}
catch (Exception ex)
{
Log.Error(ex, "Error in generating Glyphrun");
}
}
return null;
}
private bool HitTestDrawing(GlyphRunDrawing drawing, Point pt)
{
if (drawing != null && drawing.Bounds.Contains(pt))
{
return true;
}
return false;
}
private static ImageSource GetImage(sd.FontFamily fontFamily)
{
const double height = 1;
const double width = 2;
const double fontSize = 1;
var drawingGroup = new DrawingGroup();
var outerGeometry = new RectangleGeometry(new Rect(0, 0, width, height));
var geometryDrawing = new GeometryDrawing() { Geometry = outerGeometry };
geometryDrawing.Pen = new Pen(Brushes.Transparent, 0);
drawingGroup.Children.Add(geometryDrawing);
Typeface typeface = new Typeface(fontFamily.Name);
GlyphTypeface glyphTypeFace;
if (!typeface.TryGetGlyphTypeface(out glyphTypeFace))
glyphTypeFace = null;
if (null != glyphTypeFace)
{
var glyphRun = new GlyphRun();
((System.ComponentModel.ISupportInitialize)glyphRun).BeginInit();
glyphRun.GlyphTypeface = glyphTypeFace;
glyphRun.FontRenderingEmSize = fontSize;
var textChars = GetDisplayText(glyphTypeFace);
glyphRun.Characters = textChars;
ushort[] glyphIndices = new ushort[textChars.Length];
double[] advanceWidths = new double[textChars.Length];
for (int i = 0; i < textChars.Length; ++i)
{
int codePoint = textChars[i];
ushort glyphIndex = glyphTypeFace.CharacterToGlyphMap[codePoint];
double glyphWidht = glyphTypeFace.AdvanceWidths[glyphIndex];
glyphIndices[i] = glyphIndex;
advanceWidths[i] = glyphWidht * fontSize;
}
if (glyphIndices.Length > 0)
{
glyphRun.GlyphIndices = glyphIndices;
glyphRun.AdvanceWidths = advanceWidths;
glyphRun.BaselineOrigin = new Point(0, glyphTypeFace.Baseline * fontSize);
((System.ComponentModel.ISupportInitialize)glyphRun).EndInit();
var glyphRunDrawing = new GlyphRunDrawing(Brushes.Black, glyphRun);
drawingGroup.Children.Add(glyphRunDrawing);
}
}
drawingGroup.ClipGeometry = outerGeometry;
DrawingImage geometryImage = new DrawingImage(drawingGroup);
// Freeze the DrawingImage for performance benefits.
geometryImage.Freeze();
return geometryImage;
}
/// <summary>
/// Draw a GlyphRun.
/// </summary>
/// <param name="foregroundBrush">Foreground brush to draw GlyphRun with. </param>
/// <param name="glyphRun"> The GlyphRun to draw. </param>
/// <exception cref="ObjectDisposedException">
/// This call is illegal if this object has already been closed or disposed.
/// </exception>
public override void DrawGlyphRun(Brush foregroundBrush, GlyphRun glyphRun)
{
#if DEBUG
MediaTrace.DrawingContextOp.Trace("DrawGlyphRun(constant)");
#endif
//
// Verify that parameters & state are valid
//
VerifyApiNonstructuralChange();
if (foregroundBrush == null || glyphRun == null)
{
return;
}
// Add a GlyphRunDrawing to the Drawing graph
GlyphRunDrawing glyphRunDrawing = new GlyphRunDrawing();
//
// We may need to opt-out of inheritance through the new Freezable.
// This is controlled by this.CanBeInheritanceContext.
//
glyphRunDrawing.CanBeInheritanceContext = CanBeInheritanceContext;
glyphRunDrawing.ForegroundBrush = foregroundBrush;
glyphRunDrawing.GlyphRun = glyphRun;
SetupNewFreezable(
glyphRunDrawing,
foregroundBrush.IsFrozen
);
AddDrawing(glyphRunDrawing);
}
