From aeb7e5d78e5ec9eb8e12b0968b376a0dc6cb3452 Mon Sep 17 00:00:00 2001
From: RKrom <robin@getgreenshot.org>
Date: Mon, 27 Feb 2012 06:29:32 +0000
Subject: [PATCH] Added initial code for rotating

git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@1676 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4
---
 Greenshot/Drawing/DrawableContainerList.cs |  8 ++++++
 Greenshot/Drawing/Surface.cs               | 30 ++++++++++++++++++++++
 2 files changed, 38 insertions(+)

diff --git a/Greenshot/Drawing/DrawableContainerList.cs b/Greenshot/Drawing/DrawableContainerList.cs
index 0010e2497..3f6ff2b27 100644
--- a/Greenshot/Drawing/DrawableContainerList.cs
+++ b/Greenshot/Drawing/DrawableContainerList.cs
@@ -52,6 +52,14 @@ namespace Greenshot.Drawing {
 			}
 		}
 		
+		public List<IDrawableContainer> AsIDrawableContainerList() {
+			List<IDrawableContainer> interfaceList = new List<IDrawableContainer>();
+			foreach(IDrawableContainer container in this) {
+				interfaceList.Add(container);
+			}
+			return interfaceList;
+		}
+		
 		/// <summary>
 		/// Gets or sets the selection status of the elements.
 		/// If several elements are in the list, true is only returned when all elements are selected.
diff --git a/Greenshot/Drawing/Surface.cs b/Greenshot/Drawing/Surface.cs
index 531ba84dc..ea9c2afce 100644
--- a/Greenshot/Drawing/Surface.cs
+++ b/Greenshot/Drawing/Surface.cs
@@ -571,6 +571,36 @@ namespace Greenshot.Drawing {
 					case Effects.Grayscale:
 						newImage = ImageHelper.CreateGrayscale((Bitmap)Image);
 						break;
+					case Effects.Rotate270:
+						MakeUndoable(new DrawableContainerBoundsChangeMemento(elements.AsIDrawableContainerList()), false);
+						foreach(DrawableContainer drawableContainer in elements) {
+							int x1 = drawableContainer.Bounds.X - (Width >> 1);
+							int y1 = (-drawableContainer.Bounds.Y) + (Height >> 1);
+							int rotatedX1 = y1;
+							int rotatedY1 = -x1;
+							int newX1 = y1 + (Height >> 1);
+							int newY1 = -x1 - (Width >> 1);
+
+							int x2 = (drawableContainer.Bounds.X+drawableContainer.Bounds.Width) - (Width >> 1);
+							int y2 = (-(drawableContainer.Bounds.Y+drawableContainer.Bounds.Height)) + (Height >> 1);
+							int rotatedX2 = y2;
+							int rotatedY2 = -x2;
+							int newX2 = y2 + (Height >> 1);
+							int newY2 = -x2 - (Width >> 1);
+							int newWidth = newX2 - newX1;
+							int newHeight = newY2 - newY1;
+							
+							RectangleF newRectangle = new RectangleF(
+								newX1,
+								newY1,
+								newWidth,
+								newHeight
+							);
+							LOG.DebugFormat("Bounds before {0}, bounds after {1}", drawableContainer.Bounds, newRectangle);
+							drawableContainer.ApplyBounds(newRectangle);
+						}
+						newImage = ImageHelper.RotateFlip((Bitmap)Image, RotateFlipType.Rotate270FlipNone);
+						break;
 				}
 
 				if (newImage != null) {