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Fixed rotate, also working on the BitmapContainer

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git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@1680 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4
This commit is contained in:
RKrom 2012-03-05 16:01:46 +00:00
parent 25f8d81d5a
commit 0bb7f87ee5
3 changed files with 62 additions and 38 deletions
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44
Greenshot/Drawing/Surface.cs
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@ -572,44 +572,16 @@ namespace Greenshot.Drawing {
newImage = ImageHelper.CreateGrayscale((Bitmap)Image);
break;
case Effects.Rotate90:
case Effects.Rotate270:
MakeUndoable(new DrawableContainerBoundsChangeMemento(elements.AsIDrawableContainerList()), false);
foreach(DrawableContainer drawableContainer in elements) {
int angle = 270;
int ox = 0;
int oy = 0;
int centerX = Width>>1;
int centerY = Height>>1;
int px = drawableContainer.Bounds.X - centerX;
int py = centerY - drawableContainer.Bounds.Y;
double theta = Math.PI * angle / 180.0;
double x1 = Math.Cos(theta) * (px-ox) - Math.Sin(theta) * (py-oy) + ox;
double y1 = Math.Sin(theta) * (px-ox) + Math.Cos(theta) * (py-oy) + oy;
// Transform to Cartesian coordinates
px = (drawableContainer.Bounds.X+drawableContainer.Bounds.Width) - centerX;
py = centerY - (drawableContainer.Bounds.Y+drawableContainer.Bounds.Height);
double x2 = Math.Cos(theta) * (px-ox) - Math.Sin(theta) * (py-oy) + ox;
double y2 = Math.Sin(theta) * (px-ox) + Math.Cos(theta) * (py-oy) + oy;
x1 += centerY;
x2 += centerY;
y1 = centerX - y1;
y2 = centerX - y2;
// Calculate to rectangle
double newWidth = x2 - x1;
double newHeight = y2 - y1;
RectangleF newRectangle = new RectangleF(
(float)x1,
(float)y1,
(float)newWidth,
(float)newHeight
);
LOG.DebugFormat("Bounds before {0}, bounds after {1}", drawableContainer.Bounds, newRectangle);
drawableContainer.ApplyBounds(newRectangle);
RotateFlipType rotateFlipType = RotateFlipType.Rotate270FlipNone;
if (effect == Effects.Rotate90) {
rotateFlipType = RotateFlipType.Rotate90FlipNone;
}
newImage = ImageHelper.RotateFlip((Bitmap)Image, RotateFlipType.Rotate90FlipNone);
foreach (DrawableContainer drawableContainer in elements) {
drawableContainer.Rotate(rotateFlipType);
}
newImage = ImageHelper.RotateFlip((Bitmap)Image, rotateFlipType);
break;
}