mirror of
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376 lines
No EOL
9.3 KiB
C#
376 lines
No EOL
9.3 KiB
C#
/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2013 Thomas Braun, Jens Klingen, Robin Krom
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*
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* For more information see: http://getgreenshot.org/
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* The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using GreenshotPlugin;
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using GreenshotPlugin.Core;
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using System;
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using System.Drawing;
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using System.Drawing.Imaging;
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namespace Greenshot.Core
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{
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/// <summary>
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/// Interface to describe an effect
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/// </summary>
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public interface IEffect
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{
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Image Apply(Image sourceImage, out Point offsetChange);
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}
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/// <summary>
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/// DropShadowEffect
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/// </summary>
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public class DropShadowEffect : IEffect
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{
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public DropShadowEffect()
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{
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Darkness = 0.6f;
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ShadowSize = 9;
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ShadowOffset = new Point(0, 0);
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}
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public float Darkness
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{
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get;
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set;
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}
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public int ShadowSize
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{
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get;
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set;
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}
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public Point ShadowOffset
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{
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get;
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set;
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}
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public virtual Image Apply(Image sourceImage, out Point offsetChange)
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{
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return ImageHelper.CreateShadow(sourceImage, Darkness, ShadowSize, ShadowOffset, out offsetChange, PixelFormat.Format32bppArgb);
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}
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}
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/// <summary>
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/// TornEdgeEffect extends on DropShadowEffect
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/// </summary>
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public class TornEdgeEffect : DropShadowEffect
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{
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public TornEdgeEffect()
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: base()
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{
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ShadowSize = 7;
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ToothHeight = 12;
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HorizontalToothRange = 20;
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VerticalToothRange = 20;
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}
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public int ToothHeight
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{
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get;
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set;
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}
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public int HorizontalToothRange
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{
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get;
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set;
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}
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public int VerticalToothRange
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{
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get;
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set;
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}
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public override Image Apply(Image sourceImage, out Point offsetChange)
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{
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using (Image tmpTornImage = ImageHelper.CreateTornEdge(sourceImage, ToothHeight, HorizontalToothRange, VerticalToothRange))
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{
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return ImageHelper.CreateShadow(tmpTornImage, Darkness, ShadowSize, ShadowOffset, out offsetChange, PixelFormat.Format32bppArgb);
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}
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}
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}
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/// <summary>
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/// GrayscaleEffect
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/// </summary>
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public class GrayscaleEffect : IEffect
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{
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public Image Apply(Image sourceImage, out Point offsetChange)
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{
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offsetChange = Point.Empty;
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return ImageHelper.CreateGrayscale(sourceImage);
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}
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}
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/// <summary>
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/// MonochromeEffect
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/// </summary>
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public class MonochromeEffect : IEffect
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{
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private byte threshold;
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/// <param name="threshold">Threshold for monochrome filter (0 - 255), lower value means less black</param>
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public MonochromeEffect(byte threshold)
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{
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this.threshold = threshold;
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}
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public Image Apply(Image sourceImage, out Point offsetChange)
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{
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offsetChange = Point.Empty;
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return ImageHelper.CreateMonochrome(sourceImage, threshold);
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}
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}
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/// <summary>
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/// AdjustEffect
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/// </summary>
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public class AdjustEffect : IEffect
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{
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public AdjustEffect()
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: base()
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{
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Contrast = 1f;
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Brightness = 1f;
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Gamma = 1f;
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}
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public float Contrast
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{
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get;
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set;
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}
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public float Brightness
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{
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get;
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set;
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}
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public float Gamma
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{
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get;
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set;
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}
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public Image Apply(Image sourceImage, out Point offsetChange)
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{
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offsetChange = Point.Empty;
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return ImageHelper.Adjust(sourceImage, Brightness, Contrast, Gamma);
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}
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}
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/// <summary>
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/// ReduceColorsEffect
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/// </summary>
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public class ReduceColorsEffect : IEffect
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{
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public ReduceColorsEffect()
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: base()
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{
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Colors = 256;
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}
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public int Colors
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{
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get;
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set;
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}
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public Image Apply(Image sourceImage, out Point offsetChange)
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{
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offsetChange = Point.Empty;
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using (WuQuantizer quantizer = new WuQuantizer((Bitmap)sourceImage))
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{
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int colorCount = quantizer.GetColorCount();
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if (colorCount > Colors)
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{
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try
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{
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return quantizer.GetQuantizedImage(Colors);
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}
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catch (Exception e)
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{
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LOG.Warn("Error occurred while Quantizing the image, ignoring and using original. Error: ", e);
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}
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}
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}
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return null;
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}
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}
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/// <summary>
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/// InvertEffect
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/// </summary>
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public class InvertEffect : IEffect
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{
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public Image Apply(Image sourceImage, out Point offsetChange)
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{
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offsetChange = Point.Empty;
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return ImageHelper.CreateNegative(sourceImage);
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}
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}
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/// <summary>
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/// BorderEffect
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/// </summary>
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public class BorderEffect : IEffect
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{
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public BorderEffect()
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{
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Width = 2;
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Color = Color.Black;
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}
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public Color Color
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{
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get;
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set;
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}
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public int Width
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{
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get;
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set;
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}
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public Image Apply(Image sourceImage, out Point offsetChange)
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{
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return ImageHelper.CreateBorder(sourceImage, Width, Color, sourceImage.PixelFormat, out offsetChange);
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}
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}
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/// <summary>
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/// RotateEffect
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/// </summary>
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public class RotateEffect : IEffect
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{
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public RotateEffect(int angle)
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{
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Angle = angle;
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}
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public int Angle
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{
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get;
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set;
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}
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public Image Apply(Image sourceImage, out Point offsetChange)
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{
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offsetChange = Point.Empty;
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RotateFlipType flipType;
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if (Angle == 90)
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{
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flipType = RotateFlipType.Rotate90FlipNone;
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}
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else if (Angle == -90 || Angle == 270)
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{
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flipType = RotateFlipType.Rotate270FlipNone;
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}
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else
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{
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throw new NotSupportedException("Currently only an angle of 90 or -90 (270) is supported.");
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}
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return ImageHelper.RotateFlip(sourceImage, flipType);
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}
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}
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/// <summary>
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/// ResizeEffect
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/// </summary>
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public class ResizeEffect : IEffect
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{
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public ResizeEffect(int width, int height, bool maintainAspectRatio)
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{
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Width = width;
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Height = height;
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MaintainAspectRatio = maintainAspectRatio;
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}
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public int Width
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{
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get;
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set;
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}
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public int Height
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{
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get;
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set;
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}
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public bool MaintainAspectRatio
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{
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get;
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set;
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}
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public Image Apply(Image sourceImage, out Point offsetChange)
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{
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offsetChange = Point.Empty;
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return ImageHelper.ResizeImage(sourceImage, MaintainAspectRatio, Width, Height);
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}
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}
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/// <summary>
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/// ResizeCanvasEffect
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/// </summary>
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public class ResizeCanvasEffect : IEffect
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{
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public ResizeCanvasEffect(int left, int right, int top, int bottom)
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{
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Left = left;
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Right = right;
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Top = top;
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Bottom = bottom;
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BackgroundColor = Color.Empty; // Uses the default background color depending on the format
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}
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public int Left
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{
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get;
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set;
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}
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public int Right
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{
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get;
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set;
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}
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public int Top
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{
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get;
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set;
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}
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public int Bottom
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{
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get;
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set;
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}
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public Color BackgroundColor
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{
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get;
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set;
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}
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public Image Apply(Image sourceImage, out Point offsetChange)
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{
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// Make sure the elements move according to the offset the effect made the bitmap move
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offsetChange = new Point(Left, Top);
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return ImageHelper.ResizeCanvas(sourceImage, BackgroundColor, Left, Right, Top, Bottom);
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}
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}
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} |