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Give .NET Winform splitContainer Control a visible paddle for movable splitter
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private void splitContainer_Splitter_Paint(object sender, PaintEventArgs e) | |
{ | |
SplitContainer control = sender as SplitContainer; | |
if(control == null) return; | |
//paint the three dots' | |
Point[] points = new Point[3]; | |
int w = control.Width; | |
int h = control.Height; | |
int d = control.SplitterDistance; | |
int sW = control.SplitterWidth; | |
//calculate the position of the points' | |
if (control.Orientation == Orientation.Horizontal) | |
{ | |
points[0] = new Point((w / 2), d + (sW / 2)); | |
points[1] = new Point(points[0].X - 10, points[0].Y); | |
points[2] = new Point(points[0].X + 10, points[0].Y); | |
e.Graphics.FillRectangle(new SolidBrush(SystemColors.ControlDarkDark), 0, d + sW / 2 - 1, w / 2 - 20, 2); | |
e.Graphics.FillRectangle(new SolidBrush(SystemColors.ControlLightLight), 0, d + sW / 2 - 1, w / 2 - 21, 1); | |
e.Graphics.FillRectangle(new SolidBrush(SystemColors.ControlDarkDark), w / 2 + 20, d + sW / 2 - 1, w / 2 - 20, 2); | |
e.Graphics.FillRectangle(new SolidBrush(SystemColors.ControlLightLight), w / 2 + 20, d + sW / 2 - 1, w / 2 - 21, 1); | |
} | |
else | |
{ | |
points[0] = new Point(d + (sW / 2), (h / 2)); | |
points[1] = new Point(points[0].X, points[0].Y - 10); | |
points[2] = new Point(points[0].X, points[0].Y + 10); | |
e.Graphics.FillRectangle(new SolidBrush(SystemColors.ControlDarkDark), d + sW / 2 - 1, 0, 2, h / 2 - 20); | |
e.Graphics.FillRectangle(new SolidBrush(SystemColors.ControlLightLight), d + sW / 2 - 1, 0, 1, h / 2 - 21); | |
e.Graphics.FillRectangle(new SolidBrush(SystemColors.ControlDarkDark), d + sW / 2 - 1, h / 2 + 20, 2, h / 2 - 20); | |
e.Graphics.FillRectangle(new SolidBrush(SystemColors.ControlLightLight), d + sW / 2 - 1, h / 2 + 20, 1, h / 2 - 21); | |
} | |
foreach (Point p in points) | |
{ | |
p.Offset(-2, -2); | |
e.Graphics.FillEllipse(SystemBrushes.ControlDark, | |
new Rectangle(p, new Size(3, 3))); | |
p.Offset(1, 1); | |
e.Graphics.FillEllipse(SystemBrushes.ControlLight, | |
new Rectangle(p, new Size(3, 3))); | |
} | |
} |
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