public override Point Draw(Point first, MyInkData tool, DrawingContext dc, StylusPointCollection points)
{
int len = s.Length;
FormattedText[] ftArray = new FormattedText[len];
for (int i = 0; i < len; i++)
{
ftArray[i] = new FormattedText(s[i].ToString(),
System.Globalization.CultureInfo.CurrentCulture,
FlowDirection.LeftToRight, typeface, tool.inkRadius * 3, tool.inkBrush);
}
for (int i = 0; i < points.Count; i++)
{
Point pt = (Point)points[i];
Vector v = Point.Subtract(pt, first);
if (v.Length >= tool.inkRadius * 3)
{
Point pt1 = new Point(pt.X - tool.inkRadius * 1.5, pt.Y - tool.inkRadius * 1.5);
dc.DrawText(ftArray[TextIndex % len], pt1);
TextIndex++;
first = pt;
}
}
return(first);
}
public override Point Draw(Point first, MyInkData tool, DrawingContext dc, StylusPointCollection points)
{
for (int i = 0; i < points.Count; i++)
{
Point pt = (Point)points[i];
Vector v = Point.Subtract(pt, first);
Size size;
double distance = GetStylusInkDistance(tool, out size);
if (v.Length >= distance)
{
if (tool.inkDrawOption == InkDrawOption.仅填充)
{
dc.DrawEllipse(tool.inkBrush, null, pt, size.Width, size.Height);
}
else if (tool.inkDrawOption == InkDrawOption.仅轮廓)
{
dc.DrawEllipse(null, tool.inkPen, pt, size.Width, size.Height);
}
else
{
dc.DrawEllipse(tool.inkBrush, tool.inkPen, pt, size.Width, size.Height);
}
first = pt;
}
}
return(first);
}
public InkObjectStroke(InkObject ink, StylusPointCollection stylusPoints)
: base(stylusPoints)
{
this.ink = ink;
inkTool = ink.CreateFromInkData(ink.inkTool);
this.DrawingAttributes = ink.inkDA.Clone();
this.DrawingAttributes.Color = ink.myInkCanvas.fillColor;
}
protected override void OnStylusDown(RawStylusInput rawStylusInput)
{
myInkCanvas.isFromFileInk = false;
inkTool = CreateFromInkData(myInkCanvas.myData);
inkDA = myInkCanvas.inkDA.Clone();
this.DrawingAttributes = inkDA;
previousPoint = new Point(double.NegativeInfinity, double.NegativeInfinity);
base.OnStylusDown(rawStylusInput);
}
public InkObject(MyInkCanvas myInkCanvas, bool isInkColorAtEnd)
{
this.myInkCanvas = myInkCanvas;
this.isInkColorAtEnd = isInkColorAtEnd;
brush.Opacity = 0.09;
inkTool = CreateFromInkData(myInkCanvas.myData);
inkDA = myInkCanvas.inkDA.Clone();
this.DrawingAttributes = inkDA;
}
public override Point Draw(Point first, MyInkData tool, DrawingContext dc, StylusPointCollection points)
{
Point pt = (Point)points.Last();
Vector v = Point.Subtract(pt, first);
if (v.Length > 4)
{
dc.DrawLine(tool.inkPen, first, pt);
}
return(first);
}
public override Point Draw(Point first, MyInkData tool, DrawingContext dc, StylusPointCollection points)
{
Point pt = (Point)points.Last();
Vector v = Point.Subtract(pt, first);
if (v.Length > 4)
{
Rect rect = new Rect(first, v);
dc.DrawImage(bi, rect);
}
return(first);
}
public MyInkData Clone()
{
MyInkData data = new MyInkData()
{
inkRadius = this.inkRadius,
inkColor = this.inkColor,
inkBrushType = this.inkBrushType,
inkStylusType = this.inkStylusType,
inkDrawOption = this.inkDrawOption
};
return data;
}
/// <summary>当从文件中加载墨迹时，会自动调用此方法</summary>
protected override void OnStrokesReplaced(InkCanvasStrokesReplacedEventArgs e)
{
isFromFileInk = true;
StrokeCollection strokes = e.NewStrokes.Clone();
this.Strokes.Remove(e.NewStrokes);
base.OnStrokesReplaced(e);
foreach (var v in strokes)
{
this.Strokes.Remove(v);
Guid id = v.GetPropertyDataIds()[0];
string[] s = ((string)v.GetPropertyData(id)).Split('#');
MyInkData data = new MyInkData();
for (int i = 0; i < s.Length; i++)
{
string[] property = s[i].Split(':');
switch (property[0])
{
case "inkName":
this.SetInkAttributes(property[1]);
break;
case "inkRadius":
data.inkRadius = double.Parse(property[1]);
break;
case "inkColor":
string[] c = property[1].Split(',');
data.inkColor = Color.FromArgb(byte.Parse(c[0]), byte.Parse(c[1]), byte.Parse(c[2]), byte.Parse(c[3]));
break;
case "inkBrushType":
data.inkBrushType = (InkBrushType)Enum.Parse(typeof(InkBrushType), property[1]);
break;
case "inkStylusType":
data.inkStylusType = (InkStylusType)Enum.Parse(typeof(InkStylusType), property[1]);
break;
case "inkDrawOption":
data.inkDrawOption = (InkDrawOption)Enum.Parse(typeof(InkDrawOption), property[1]);
break;
}
}
ink.inkTool = ink.CreateFromInkData(data);
InkCanvasStrokeCollectedEventArgs args = new InkCanvasStrokeCollectedEventArgs(v);
this.OnStrokeCollected(args);
}
}
/// <summary>
/// 初始化墨迹类型和笔尖信息，其初值必须与RibbonTab中的默认选项相同
/// </summary>
public MyInkCanvas()
{
fillColor = Colors.Transparent;
this.myData = new MyInkData()
{
inkRadius = 12.0,
inkColor = Colors.Red,
inkBrushType = InkBrushType.线性渐变,
inkStylusType = InkStylusType.圆笔,
inkDrawOption = InkDrawOption.全部
};
UpdateInkParams();
SetInkAttributes(InkType.球形.ToString());
}
public MyInkData CreateFromInkData(MyInkData data)
{
MyInkData tool = data.Clone();
tool.inkBrush = null;
if (isInkColorAtEnd)
{
GradientStopCollection c = new GradientStopCollection()
{
new GradientStop(Colors.White, 0.05),
new GradientStop(Colors.Gold, 0.15),
new GradientStop(data.inkColor, 1.0),
};
switch (data.inkBrushType)
{
case InkBrushType.仿射渐变:
tool.inkBrush = new RadialGradientBrush(c);
break;
case InkBrushType.线性渐变:
tool.inkBrush = new LinearGradientBrush(c);
break;
case InkBrushType.纯色:
tool.inkBrush = new SolidColorBrush(data.inkColor);
break;
}
Brush b = tool.inkBrush;
tool.inkPen = new Pen(b, tool.inkRadius * 0.5);
}
else
{
switch (data.inkBrushType)
{
case InkBrushType.仿射渐变:
tool.inkBrush = new RadialGradientBrush(data.inkColor, Colors.Gold);
break;
case InkBrushType.线性渐变:
tool.inkBrush = new LinearGradientBrush(data.inkColor, Colors.Gold, 45.0);
break;
case InkBrushType.纯色:
tool.inkBrush = new SolidColorBrush(data.inkColor);
break;
}
tool.inkPen = new Pen(tool.inkBrush, tool.inkRadius * 0.5);
}
return(tool);
}
public override Point Draw(Point first, MyInkData tool, DrawingContext dc, StylusPointCollection points)
{
for (int i = 0; i < points.Count; i++)
{
Point pt = (Point)points[i];
Vector v = Point.Subtract(pt, first);
Size size;
double distance = GetStylusInkDistance(tool, out size);
if (v.Length >= distance)
{
double x = pt.X - size.Width;
double y = pt.Y - size.Height;
Rect rect = new Rect(x, y, 2 * size.Width, 2 * size.Height);
dc.DrawImage(bi, rect);
first = pt;
}
}
return(first);
}
protected double GetStylusInkDistance(MyInkData data, out Size size)
{
double width = data.inkRadius;;
double height = data.inkRadius;
switch (data.inkStylusType)
{
case InkStylusType.圆笔: break;
case InkStylusType.竖笔: height *= 2; break;
case InkStylusType.横笔: width *= 2; break;
case InkStylusType.钢笔: width *= 0.5; height *= 0.5; break;
}
size = new Size(width, height);
double distance = Math.Max(size.Width, size.Height) * 1.5 + 10;
return(distance);
}
/// <summary>当收集墨迹时，会自动调用此方法</summary>
protected override void OnStrokeCollected(InkCanvasStrokeCollectedEventArgs e)
{
this.Strokes.Remove(e.Stroke);
ink.CreateNewStroke(e);
MyInkData data = ink.InkStroke.inkTool;
StringBuilder sb = new StringBuilder();
sb.AppendFormat("inkName:{0}#", ink.inkType);
sb.AppendFormat("inkRadius:{0}#", data.inkRadius);
Color c = data.inkColor;
sb.AppendFormat("inkColor:{0},{1},{2},{3}#", c.A, c.R, c.G, c.B);
sb.AppendFormat("inkBrushType:{0}#", data.inkBrushType);
sb.AppendFormat("inkStylusType:{0}#", data.inkStylusType);
sb.AppendFormat("inkDrawOption:{0}", data.inkDrawOption);
ink.InkStroke.AddPropertyData(Guid.NewGuid(), sb.ToString());
this.Strokes.Add(ink.InkStroke);
InkCanvasStrokeCollectedEventArgs args = new InkCanvasStrokeCollectedEventArgs(ink.InkStroke);
base.OnStrokeCollected(args);
}
public override Point Draw(Point first, MyInkData tool, DrawingContext dc, StylusPointCollection points)
{
Point pt = (Point)points.Last();
Vector v = Point.Subtract(pt, first);
double radiusX = (pt.X - first.X) / 2.0;
double radiusY = (pt.Y - first.Y) / 2.0;
Point center = new Point((pt.X + first.X) / 2.0, (pt.Y + first.Y) / 2.0);
if (tool.inkDrawOption == InkDrawOption.仅填充)
{
dc.DrawEllipse(tool.inkBrush, null, center, radiusX, radiusY);
}
else if (tool.inkDrawOption == InkDrawOption.仅轮廓)
{
dc.DrawEllipse(null, tool.inkPen, center, radiusX, radiusY);
}
else
{
dc.DrawEllipse(tool.inkBrush, tool.inkPen, center, radiusX, radiusY);
}
return(first);
}
public override Point Draw(Point first, MyInkData tool, DrawingContext dc, StylusPointCollection points)
{
Point pt = (Point)points.Last();
Vector v = Point.Subtract(pt, first);
if (v.Length > 4)
{
Rect rect = new Rect(first, v);
if (tool.inkDrawOption == InkDrawOption.仅填充)
{
dc.DrawRectangle(tool.inkBrush, null, rect);
}
else if (tool.inkDrawOption == InkDrawOption.仅轮廓)
{
dc.DrawRectangle(null, tool.inkPen, rect);
}
else
{
dc.DrawRectangle(tool.inkBrush, tool.inkPen, rect);
}
}
return(first);
}
public override Point Draw(Point first, MyInkData tool, DrawingContext dc, StylusPointCollection points)
{
return(first);
}
public abstract Point Draw(Point first, MyInkData tool, DrawingContext dc, StylusPointCollection points);
