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Use ResizeBitmap for ForceProportions effect
Also some refactoring
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@ -36,7 +36,7 @@ internal class ForceProportions : ImageEffect
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private int width = 1;
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private int height = 1;
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//[DefaultValue(typeof(Padding), "0, 0, 0, 0")]
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[DefaultValue(typeof(int), "1")]
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public int Width
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{
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get {
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@ -47,6 +47,7 @@ public int Width
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width = Math.Max(1, value);
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}
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}
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[DefaultValue(typeof(int), "1")]
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public int Height
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{
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get
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@ -76,18 +77,14 @@ public ForceProportions()
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public override Bitmap Apply(Bitmap bmp)
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{
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// NOTE: I don't know if input bitmap can have 0 as height
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// TODO: remove this if it can't
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if (bmp.Width < 1 || bmp.Height < 1)
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return bmp;
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float target_ratio = (float)width / (float)height;
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float current_ratio = (float)bmp.Width / (float)bmp.Height;
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float target_ratio = (float)width / (float)height;
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bool is_target_wider = target_ratio > current_ratio;
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int target_width = bmp.Width;
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int target_height = bmp.Height;
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bool is_target_wider = target_ratio > current_ratio;
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if(Method == ForceMethod.Crop)
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if (Method == ForceMethod.Crop)
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{
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if (is_target_wider)
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target_height = (int)Math.Round(bmp.Width / target_ratio);
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@ -101,28 +98,13 @@ public override Bitmap Apply(Bitmap bmp)
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: 0;
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return ImageHelpers.CropBitmap(bmp, new Rectangle(margin_left, margin_top, target_width, target_height));
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}
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if(Method == ForceMethod.Grow)
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if (Method == ForceMethod.Grow)
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{
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if (is_target_wider)
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target_width = (int)Math.Round(bmp.Height * target_ratio);
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else
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target_height = (int)Math.Round(bmp.Width / target_ratio);
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int margin_hor = is_target_wider
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? (target_width - bmp.Width) / 2
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: 0;
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int margin_ver = is_target_wider
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? 0
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: (target_height - bmp.Height) / 2;
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Bitmap bmpResult = ImageHelpers.AddCanvas(bmp, new Padding(margin_hor, margin_ver, margin_hor, margin_ver), GrowFillColor);
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if (bmpResult == null)
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{
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return bmp;
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}
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bmp.Dispose();
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return bmpResult;
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return ImageHelpers.ResizeImage(bmp, target_width, target_height, false, true, GrowFillColor);
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}
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return bmp;
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