Created
March 22, 2011 22:29
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MonoTouch example of cropping an image.
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| public UIImage Crop(UIImage image, RectangleF section) | |
| { | |
| // Start context. | |
| UIGraphics.BeginImageContext(section.Size); | |
| var ctx = UIGraphics.GetCurrentContext(); | |
| // Clear the image with red. | |
| ctx.SetRGBFillColor(255, 255, 255, 255); | |
| ctx.FillRect(new RectangleF(new PointF(0, 0), section.Size)); | |
| // Setting transform to flip the image. | |
| var transform = new MonoTouch.CoreGraphics.CGAffineTransform(1, 0, 0, -1, 0, section.Height); | |
| ctx.ConcatCTM(transform); | |
| // Drawing the image. | |
| var drawSource = CreateDrawRectangle(image, section); | |
| ctx.DrawImage(drawSource, image.CGImage.WithImageInRect(section)); | |
| // Extracting the image and ending. | |
| var croppedImage = UIGraphics.GetImageFromCurrentImageContext(); | |
| UIGraphics.EndImageContext(); | |
| return croppedImage; | |
| } |
Where is CreateDrawRectangle() ? I can't seem to find it.
Where is CreateDrawRectangle() ? I can't seem to find it.
Where is CreateDrawRectangle() ? I can't seem to find it.
Where is CreateDrawRectangle() ? I can't seem to find it.
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Where is CreateDrawRectangle() ? I can't seem to find it.
Update: I believe it is defined in this source file
https://github.com/follesoe/FacebookBigProfile/blob/761ae309df72b12864f6e91115bb2932ab264978/FacebookBigProfile/MainView.xib.cs#L492