public void ResetTransform()
{
using (Matrix m = new Matrix(2, 0, 0, 2, 10, -10)) {
using (PathGradientBrush pgb = new PathGradientBrush(pts_2f, WrapMode.Clamp)) {
pgb.Transform = m;
Assert.IsFalse(pgb.Transform.IsIdentity, "Transform.IsIdentity");
pgb.ResetTransform();
Assert.IsTrue(pgb.Transform.IsIdentity, "Reset.IsIdentity");
}
}
}
/// <summary>
/// 路径控件的颜色发生变化通知 [一般作用于示例图使用]
/// </summary>
/// <param name="cb"></param>
/// <param name="angle"></param>
private void Event_PathBrushControl(ColorBlend cb, float angle)
{
_pathGradientBrushExample.InterpolationColors = linearGradientUserControl2.LinearGradientBrushInfo.ColorBlend;
_pathGradientBrushExample.ResetTransform();
Point centpt = new Point(Location.X - 1 + Width / 2, Location.Y + Height / 2);
Notify();
// Matrix matrix = new Matrix();
// matrix.Reset();
// matrix.RotateAt(0, centpt);
// _pathGradientBrushExample.Transform = matrix;
Invalidate();
}
public void Transform_Operations ()
{
using (PathGradientBrush pgb = new PathGradientBrush (pts_2f, WrapMode.Clamp))
{
Matrix clone = pgb.Transform.Clone ();
Matrix mul = clone.Clone ();
clone.Multiply (mul, MatrixOrder.Append);
pgb.MultiplyTransform (mul, MatrixOrder.Append);
Assert.AreEqual (pgb.Transform, clone, "Multiply/Append");
clone.Multiply (mul, MatrixOrder.Prepend);
pgb.MultiplyTransform (mul, MatrixOrder.Prepend);
Assert.AreEqual (pgb.Transform, clone, "Multiply/Prepend");
clone.Rotate (45, MatrixOrder.Append);
pgb.RotateTransform (45, MatrixOrder.Append);
Assert.AreEqual (pgb.Transform, clone, "Rotate/Append");
clone.Rotate (45, MatrixOrder.Prepend);
pgb.RotateTransform (45, MatrixOrder.Prepend);
Assert.AreEqual (pgb.Transform, clone, "Rotate/Prepend");
clone.Scale (0.25f, 2, MatrixOrder.Append);
pgb.ScaleTransform (0.25f, 2, MatrixOrder.Append);
Assert.AreEqual (pgb.Transform, clone, "Scale/Append");
clone.Scale (0.25f, 2, MatrixOrder.Prepend);
pgb.ScaleTransform (0.25f, 2, MatrixOrder.Prepend);
Assert.AreEqual (pgb.Transform, clone, "Scale/Prepend");
clone.Translate (10, 20, MatrixOrder.Append);
pgb.TranslateTransform (10, 20, MatrixOrder.Append);
Assert.AreEqual (pgb.Transform, clone, "Translate/Append");
clone.Translate (30, 40, MatrixOrder.Prepend);
pgb.TranslateTransform (30, 40, MatrixOrder.Prepend);
Assert.AreEqual (pgb.Transform, clone, "Translate/Prepend");
clone.Reset ();
pgb.ResetTransform ();
Assert.AreEqual (pgb.Transform, clone, "Reset");
}
}
public void Rectangle()
{
using (PathGradientBrush pgb = new PathGradientBrush(pts_2f, WrapMode.TileFlipXY)) {
CheckDefaultRectangle("Original", pgb.Rectangle);
pgb.MultiplyTransform(new Matrix(2, 0, 0, 2, 2, 2));
CheckDefaultRectangle("Multiply", pgb.Rectangle);
pgb.ResetTransform();
CheckDefaultRectangle("Reset", pgb.Rectangle);
pgb.RotateTransform(90);
CheckDefaultRectangle("Rotate", pgb.Rectangle);
pgb.ScaleTransform(4, 0.25f);
CheckDefaultRectangle("Scale", pgb.Rectangle);
pgb.TranslateTransform(-10, -20);
CheckDefaultRectangle("Translate", pgb.Rectangle);
pgb.SetBlendTriangularShape(0.5f);
CheckDefaultRectangle("SetBlendTriangularShape", pgb.Rectangle);
pgb.SetSigmaBellShape(0.5f);
CheckDefaultRectangle("SetSigmaBellShape", pgb.Rectangle);
}
}
/// <summary>
/// Paints the specified g.
/// </summary>
/// <param name="g">The g.</param>
/// <param name="r">The r.</param>
public override void Paint(Graphics g, Region r)
{
base.Paint(g, r);
if (!Bar.DrawBar)
{
return;
}
RectangleF bounds = r.GetBounds(g);
float ratio = CalculateRatio();
if (!Bar.Vertical)
{
float xOffset = bounds.Width * ratio;
if (!BlockSmooth && Bar.Pin != ZeroitBusyBar.Pins.None)
{
int xPeriod = BlockWidth + BlockLineWidth;
int xIntPeriods = (int)System.Math.Floor(bounds.Width / xPeriod);
float xWholeWidth = (1 + xIntPeriods) * xPeriod;
float xFudge = xWholeWidth / bounds.Width;
xOffset *= xFudge;
}
float xValue = bounds.Left + xOffset;
float b = bounds.Width * BlockPercent / 100f;
float xLeft = xValue - (b / 2);
float xRight = xValue + (b / 2);
float yMiddle = bounds.Top + (bounds.Height / 2);
RectangleF r2 = RectangleF.Empty;
RectangleF r1 = RectangleF.Empty;
RectangleF r3 = RectangleF.Empty;
switch (Bar.Pin)
{
case ZeroitBusyBar.Pins.None:
{
r2 = new RectangleF(xLeft, bounds.Top, b, bounds.Height);
r1 = r2; r1.Offset(-bounds.Width, 0);
r3 = r2; r3.Offset(+bounds.Width, 0);
break;
}
case ZeroitBusyBar.Pins.Start:
{
r2 = new RectangleF(
bounds.Left,
bounds.Top,
xOffset,
bounds.Height);
break;
}
case ZeroitBusyBar.Pins.End:
{
r2 = new RectangleF(
xValue,
bounds.Top,
bounds.Width - xOffset,
bounds.Height);
break;
}
default:
Debug.Assert(false);
return;
}
if (r2.Width <= 0 || r2.Height <= 0)
{
return;
}
if (r2.Left > bounds.Left)
{
_Wrap = Bar.Wrap;
}
ZeroitBusyBarBlockLines blocks = new ZeroitBusyBarBlockLines();
blocks.BlockWidth = BlockWidth;
blocks.BlockLineWidth = BlockLineWidth;
blocks.BlockScroll = BlockScroll;
blocks.Bounds = bounds;
blocks.R1 = r1;
blocks.R2 = r2;
blocks.R3 = r3;
blocks.XValue = xValue;
ArrayList lines = blocks.HorizontalLines;
if (!BlockSmooth)
{
r1.X = blocks.R1Left;
r2.X = blocks.R2Left;
r3.X = blocks.R3Left;
r1.Width = blocks.R1Right - r1.Left;
r2.Width = blocks.R2Right - r2.Left;
r3.Width = blocks.R3Right - r3.Left;
if (Bar.Pin == ZeroitBusyBar.Pins.Start && lines.Count > 0)
{
r2.X -= BlockWidth + BlockLineWidth;
r2.Width += BlockWidth + BlockLineWidth;
}
if (Bar.Pin == ZeroitBusyBar.Pins.End && lines.Count > 0)
{
r2.Width += BlockWidth + BlockLineWidth;
}
}
GraphicsPath path = null;
Color[] colours = null;
switch (_Shape)
{
case Shapes.Rectangle:
{
PointF[] points = null;
if (Bar.Pin == ZeroitBusyBar.Pins.None)
{
points = new PointF[]
{
new PointF(xLeft, bounds.Top),
new PointF(xValue, bounds.Top),
new PointF(xRight, bounds.Top),
new PointF(xRight, yMiddle),
new PointF(xRight, bounds.Bottom),
new PointF(xValue, bounds.Bottom),
new PointF(xLeft, bounds.Bottom),
new PointF(xLeft, yMiddle),
};
}
else
{
if (r2.Width < 1)
{
return;
}
float xMiddle = (r2.Left + r2.Right) / 2;
points = new PointF[]
{
new PointF(r2.Left, bounds.Top),
new PointF(xMiddle, bounds.Top),
new PointF(r2.Right, bounds.Top),
new PointF(r2.Right, yMiddle),
new PointF(r2.Right, bounds.Bottom),
new PointF(xMiddle, bounds.Bottom),
new PointF(r2.Left, bounds.Bottom),
new PointF(r2.Left, yMiddle),
};
}
path = new GraphicsPath();
path.AddLines(points);
path.CloseFigure();
colours = new Color[]
{
_ColorCorner,
_ColorVertical,
_ColorCorner,
_ColorHorizontal,
_ColorCorner,
_ColorVertical,
_ColorCorner,
_ColorHorizontal
};
break;
}
case Shapes.Diamond:
{
PointF[] points = null;
if (Bar.Pin == ZeroitBusyBar.Pins.None)
{
points = new PointF[]
{
new PointF(xValue, bounds.Top),
new PointF(xRight, yMiddle),
new PointF(xValue, bounds.Bottom),
new PointF(xLeft, yMiddle),
};
}
else
{
if (r2.Width < 1)
{
return;
}
float xMiddle = (r2.Left + r2.Right) / 2;
points = new PointF[]
{
new PointF(xMiddle, bounds.Top),
new PointF(r2.Right, yMiddle),
new PointF(xMiddle, bounds.Bottom),
new PointF(r2.Left, yMiddle),
};
}
path = new GraphicsPath();
path.AddLines(points);
path.CloseFigure();
colours = new Color[]
{
_ColorVertical,
_ColorHorizontal,
_ColorVertical,
_ColorHorizontal
};
break;
}
case Shapes.Circle:
{
path = new GraphicsPath();
if (Bar.Pin == ZeroitBusyBar.Pins.None)
{
path.AddEllipse(xLeft, bounds.Top, b, bounds.Height);
}
else
{
if (r2.Width < 1)
{
return;
}
path.AddEllipse(r2.Left, bounds.Top, r2.Width, bounds.Height);
}
colours = new Color[]
{
_ColorCorner,
};
break;
}
default:
Debug.Assert(false);
return;
}
using (PathGradientBrush brush = new PathGradientBrush(path))
{
brush.CenterColor = _ColorCentre;
brush.SurroundColors = colours;
bool bOther = _Wrap && (Bar.Pin == ZeroitBusyBar.Pins.None);
if (bOther)
{
brush.TranslateTransform(-bounds.Width, 0);
g.FillRectangle(brush, r1);
brush.ResetTransform();
}
g.FillRectangle(brush, r2);
if (bOther)
{
brush.TranslateTransform(+bounds.Width, 0);
g.FillRectangle(brush, r3);
brush.ResetTransform();
}
}
if (BlockLineWidth > 0)
{
using (Pen pen2 = new Pen(BlockLineColor, BlockLineWidth))
{
foreach (float xLine in lines)
{
g.DrawLine(pen2, xLine, bounds.Top, xLine, bounds.Bottom);
}
}
}
}
// Vertical
else
{
float yOffset = bounds.Height * ratio;
if (!BlockSmooth && Bar.Pin != ZeroitBusyBar.Pins.None)
{
int yPeriod = BlockWidth + BlockLineWidth;
int yIntPeriods = (int)System.Math.Floor(bounds.Height / yPeriod);
float yWholeWidth = (1 + yIntPeriods) * yPeriod;
float yFudge = yWholeWidth / bounds.Height;
yOffset *= yFudge;
}
float yValue = bounds.Top + yOffset;
float b = bounds.Height * BlockPercent / 100f;
float yTop = yValue - (b / 2);
float yBottom = yValue + (b / 2);
float xMiddle = bounds.Left + (bounds.Width / 2);
RectangleF r2 = RectangleF.Empty;
RectangleF r1 = RectangleF.Empty;
RectangleF r3 = RectangleF.Empty;
switch (Bar.Pin)
{
case ZeroitBusyBar.Pins.None:
{
r2 = new RectangleF(bounds.Left, yTop, bounds.Width, b);
r1 = r2; r1.Offset(0, -bounds.Height);
r3 = r2; r3.Offset(0, +bounds.Height);
break;
}
case ZeroitBusyBar.Pins.Start:
{
r2 = new RectangleF(
bounds.Left,
bounds.Top,
bounds.Width,
yOffset);
break;
}
case ZeroitBusyBar.Pins.End:
{
r2 = new RectangleF(
bounds.Left,
yValue,
bounds.Width,
bounds.Height - yOffset);
break;
}
default:
Debug.Assert(false);
return;
}
if (r2.Width <= 0 || r2.Height <= 0)
{
return;
}
if (r2.Top > bounds.Top)
{
_Wrap = Bar.Wrap;
}
ZeroitBusyBarBlockLines blocks = new ZeroitBusyBarBlockLines();
blocks.BlockWidth = BlockWidth;
blocks.BlockLineWidth = BlockLineWidth;
blocks.BlockScroll = BlockScroll;
blocks.Bounds = bounds;
blocks.R1 = r1;
blocks.R2 = r2;
blocks.R3 = r3;
blocks.YValue = yValue;
ArrayList lines = blocks.VerticalLines;
if (!BlockSmooth)
{
r1.Y = blocks.R1Top;
r2.Y = blocks.R2Top;
r3.Y = blocks.R3Top;
r1.Height = blocks.R1Bottom - r1.Top;
r2.Height = blocks.R2Bottom - r2.Top;
r3.Height = blocks.R3Bottom - r3.Top;
if (Bar.Pin == ZeroitBusyBar.Pins.Start && lines.Count > 0)
{
r2.Y -= BlockWidth + BlockLineWidth;
r2.Height += BlockWidth + BlockLineWidth;
}
if (Bar.Pin == ZeroitBusyBar.Pins.End && lines.Count > 0)
{
r2.Height += BlockWidth + BlockLineWidth;
}
}
GraphicsPath path = null;
Color[] colours = null;
switch (_Shape)
{
case Shapes.Rectangle:
{
PointF[] points = null;
if (Bar.Pin == ZeroitBusyBar.Pins.None)
{
points = new PointF[]
{
new PointF(bounds.Left, yTop),
new PointF(xMiddle, yTop),
new PointF(bounds.Right, yTop),
new PointF(bounds.Right, yValue),
new PointF(bounds.Right, yBottom),
new PointF(xMiddle, yBottom),
new PointF(bounds.Left, yBottom),
new PointF(bounds.Left, yValue),
};
}
else
{
if (r2.Height < 1)
{
return;
}
float yMiddle = (r2.Top + r2.Bottom) / 2;
points = new PointF[]
{
new PointF(bounds.Left, r2.Top),
new PointF(xMiddle, r2.Top),
new PointF(bounds.Right, r2.Top),
new PointF(bounds.Right, yMiddle),
new PointF(bounds.Right, r2.Bottom),
new PointF(xMiddle, r2.Bottom),
new PointF(bounds.Left, r2.Bottom),
new PointF(bounds.Left, yMiddle),
};
}
path = new GraphicsPath();
path.AddLines(points);
path.CloseFigure();
colours = new Color[]
{
_ColorCorner,
_ColorVertical,
_ColorCorner,
_ColorHorizontal,
_ColorCorner,
_ColorVertical,
_ColorCorner,
_ColorHorizontal
};
break;
}
case Shapes.Diamond:
{
PointF[] points = null;
if (Bar.Pin == ZeroitBusyBar.Pins.None)
{
points = new PointF[]
{
new PointF(xMiddle, yTop),
new PointF(bounds.Right, yValue),
new PointF(xMiddle, yBottom),
new PointF(bounds.Left, yValue),
};
}
else
{
if (r2.Height < 1)
{
return;
}
float yMiddle = (r2.Top + r2.Bottom) / 2;
points = new PointF[]
{
new PointF(xMiddle, r2.Top),
new PointF(bounds.Right, yMiddle),
new PointF(xMiddle, r2.Bottom),
new PointF(bounds.Left, yMiddle),
};
}
path = new GraphicsPath();
path.AddLines(points);
path.CloseFigure();
colours = new Color[]
{
_ColorVertical,
_ColorHorizontal,
_ColorVertical,
_ColorHorizontal
};
break;
}
case Shapes.Circle:
{
path = new GraphicsPath();
if (Bar.Pin == ZeroitBusyBar.Pins.None)
{
path.AddEllipse(bounds.Left, yTop, bounds.Width, b);
}
else
{
if (r2.Height < 1)
{
return;
}
path.AddEllipse(bounds.Left, r2.Top, bounds.Width, r2.Height);
}
colours = new Color[]
{
_ColorCorner,
};
break;
}
default:
Debug.Assert(false);
return;
}
using (PathGradientBrush brush = new PathGradientBrush(path))
{
brush.CenterColor = _ColorCentre;
brush.SurroundColors = colours;
bool bOther = _Wrap && (Bar.Pin == ZeroitBusyBar.Pins.None);
if (bOther)
{
brush.TranslateTransform(0, -bounds.Height);
g.FillRectangle(brush, r1);
brush.ResetTransform();
}
g.FillRectangle(brush, r2);
if (bOther)
{
brush.TranslateTransform(0, +bounds.Height);
g.FillRectangle(brush, r3);
brush.ResetTransform();
}
}
if (BlockLineWidth > 0)
{
using (Pen pen2 = new Pen(BlockLineColor, BlockLineWidth))
{
foreach (float yLine in lines)
{
g.DrawLine(pen2, bounds.Left, yLine, bounds.Right, yLine);
}
}
}
}
}