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Added an edge effect to see how and where we place them.

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git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@1638 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4
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RKrom 2012-02-07 16:28:28 +00:00
parent 034daa3957
commit a52e83dc45
2 changed files with 102 additions and 2 deletions
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87
GreenshotPlugin/Core/ImageHelper.cs
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@ -297,5 +297,92 @@ namespace GreenshotPlugin.Core {
}
return returnIcon;
}
/// <summary>
/// Make the picture look like it's torn
/// </summary>
/// <param name="bitmap">Bitmap to modify</param>
public static void ApplyTornEdge(Bitmap bitmap) {
GraphicsPath path = new GraphicsPath();
Random random = new Random();
int regionWidth = 14;
int regionHeight = 14;
int HorizontalRegions = (int)(bitmap.Width / regionWidth);
int VerticalRegions = (int)(bitmap.Height / regionHeight);
int distance = 12;
// Start
Point previousEndingPoint = Point.Empty;
Point newEndingPoint = Point.Empty;
// Top
for (int i = 0; i < HorizontalRegions; i++) {
int x = (int)previousEndingPoint.X + regionWidth;
int y = random.Next(0, distance);
newEndingPoint = new Point(x, y);
path.AddLine(previousEndingPoint, newEndingPoint);
previousEndingPoint = newEndingPoint;
}
// end top
newEndingPoint = new Point(bitmap.Width, 0);
path.AddLine(previousEndingPoint, newEndingPoint);
previousEndingPoint = newEndingPoint;
path.CloseFigure();
// Right
for (int i = 0; i < VerticalRegions; i++) {
int x = bitmap.Width - random.Next(0, distance);
int y = (int)previousEndingPoint.Y + regionHeight;
newEndingPoint = new Point(x, y);
path.AddLine(previousEndingPoint, newEndingPoint);
previousEndingPoint = newEndingPoint;
}
// end right
newEndingPoint = new Point(bitmap.Width, bitmap.Height);
path.AddLine(previousEndingPoint, newEndingPoint);
previousEndingPoint = newEndingPoint;
path.CloseFigure();
// Bottom
for (int i = 0; i < HorizontalRegions; i++) {
int x = (int)previousEndingPoint.X - regionWidth;
int y = bitmap.Height - random.Next(0, distance);
newEndingPoint = new Point(x, y);
path.AddLine(previousEndingPoint, newEndingPoint);
previousEndingPoint = newEndingPoint;
}
// end Bottom
newEndingPoint = new Point(0, bitmap.Height);
path.AddLine(previousEndingPoint, newEndingPoint);
previousEndingPoint = newEndingPoint;
path.CloseFigure();
// Left
for (int i = 0; i < VerticalRegions; i++) {
int x = random.Next(0, distance);
int y = (int)previousEndingPoint.Y - regionHeight;
newEndingPoint = new Point(x, y);
path.AddLine(previousEndingPoint, newEndingPoint);
previousEndingPoint = newEndingPoint;
}
// end Left
newEndingPoint = new Point(0, 0);
path.AddLine(previousEndingPoint, newEndingPoint);
previousEndingPoint = newEndingPoint;
path.CloseFigure();
// Draw
using (Graphics graphics = Graphics.FromImage(bitmap)) {
Color fillColor = Color.White;
if (bitmap.PixelFormat == PixelFormat.Format32bppArgb) {
graphics.SetClip(path);
graphics.Clear(Color.Transparent);
} else {
using (Brush brush = new SolidBrush( Color.White)) {
graphics.FillPath(brush, path);
}
}
}
}
}
}