mirror of
https://github.com/greenshot/greenshot
synced 2025-07-15 01:23:47 -07:00
526 lines
No EOL
15 KiB
C#
526 lines
No EOL
15 KiB
C#
/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2015 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 GitHub https://github.com/greenshot/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.Core;
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using log4net;
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using System;
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using System.ComponentModel;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Drawing.Imaging;
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using System.Globalization;
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using System.Text;
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namespace Greenshot.Core {
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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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/// <summary>
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/// Apply this IEffect to the supplied sourceImage.
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/// In the process of applying the supplied matrix will be modified to represent the changes.
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/// </summary>
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/// <param name="sourceImage">Image to apply the effect to</param>
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/// <param name="matrix">Matrix with the modifications like rotate, translate etc. this can be used to calculate the new location of elements on a canvas</param>
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/// <returns>new image with applied effect</returns>
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Image Apply(Image sourceImage, Matrix matrix);
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/// <summary>
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/// Reset all values to their defaults
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/// </summary>
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void Reset();
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}
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/// <summary>
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/// DropShadowEffect
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/// </summary>
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[TypeConverter(typeof(EffectConverter))]
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public class DropShadowEffect : IEffect {
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public DropShadowEffect() {
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Reset();
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}
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public float Darkness {
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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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get;
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set;
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}
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public Point ShadowOffset {
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get;
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set;
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}
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public virtual void Reset() {
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Darkness = 0.6f;
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ShadowSize = 7;
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ShadowOffset = new Point(-1, -1);
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}
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public virtual Image Apply(Image sourceImage, Matrix matrix) {
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return ImageHelper.CreateShadow(sourceImage, Darkness, ShadowSize, ShadowOffset, matrix, 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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[TypeConverter(typeof(EffectConverter))]
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public class TornEdgeEffect : DropShadowEffect {
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public TornEdgeEffect() : base() {
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Reset();
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}
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public int ToothHeight {
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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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get;
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set;
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}
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public int VerticalToothRange {
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get;
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set;
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}
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public bool[] Edges {
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get;
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set;
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}
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public bool GenerateShadow {
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get;
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set;
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}
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public override void Reset() {
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base.Reset();
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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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Edges = new bool[] { true, true, true, true };
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GenerateShadow = true;
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}
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public override Image Apply(Image sourceImage, Matrix matrix) {
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Image tmpTornImage = ImageHelper.CreateTornEdge(sourceImage, ToothHeight, HorizontalToothRange, VerticalToothRange, Edges);
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if (GenerateShadow) {
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using (tmpTornImage) {
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return ImageHelper.CreateShadow(tmpTornImage, Darkness, ShadowSize, ShadowOffset, matrix, PixelFormat.Format32bppArgb);
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}
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}
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return tmpTornImage;
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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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public Image Apply(Image sourceImage, Matrix matrix) {
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return ImageHelper.CreateGrayscale(sourceImage);
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}
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public void Reset() {
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// No settings to reset
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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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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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this.threshold = threshold;
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}
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public void Reset() {
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// TODO: Modify the threshold to have a default, which is reset here
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}
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public Image Apply(Image sourceImage, Matrix matrix) {
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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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public AdjustEffect() : base() {
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Reset();
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}
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public float Contrast {
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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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get;
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set;
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}
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public float Gamma {
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get;
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set;
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}
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public void Reset() {
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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 Image Apply(Image sourceImage, Matrix matrix) {
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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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private static ILog LOG = LogManager.GetLogger(typeof(ReduceColorsEffect));
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public ReduceColorsEffect() : base() {
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Reset();
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}
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public int Colors {
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get;
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set;
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}
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public void Reset() {
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Colors = 256;
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}
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public Image Apply(Image sourceImage, Matrix matrix) {
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using (WuQuantizer quantizer = new WuQuantizer((Bitmap)sourceImage)) {
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int colorCount = quantizer.GetColorCount();
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if (colorCount > Colors) {
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try {
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return quantizer.GetQuantizedImage(Colors);
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} catch (Exception e) {
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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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public Image Apply(Image sourceImage, Matrix matrix) {
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return ImageHelper.CreateNegative(sourceImage);
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}
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public void Reset() {
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// No settings to reset
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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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public BorderEffect() {
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Reset();
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}
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public Color Color {
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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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get;
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set;
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}
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public void Reset() {
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Width = 2;
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Color = Color.Black;
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}
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public Image Apply(Image sourceImage, Matrix matrix) {
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return ImageHelper.CreateBorder(sourceImage, Width, Color, sourceImage.PixelFormat, matrix);
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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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public RotateEffect(int angle) {
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Angle = angle;
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}
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public int Angle {
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get;
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set;
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}
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public void Reset() {
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// Angle doesn't have a default value
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}
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public Image Apply(Image sourceImage, Matrix matrix) {
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RotateFlipType flipType;
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if (Angle == 90) {
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matrix.Rotate(90, MatrixOrder.Append);
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matrix.Translate(sourceImage.Height, 0, MatrixOrder.Append);
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flipType = RotateFlipType.Rotate90FlipNone;
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} else if (Angle == -90 || Angle == 270) {
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flipType = RotateFlipType.Rotate270FlipNone;
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matrix.Rotate(-90, MatrixOrder.Append);
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matrix.Translate(0, sourceImage.Width, MatrixOrder.Append);
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} else {
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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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public ResizeEffect(int width, int height, bool maintainAspectRatio) {
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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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get;
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set;
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}
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public int Height {
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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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get;
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set;
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}
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public void Reset() {
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// values don't have a default value
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}
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public Image Apply(Image sourceImage, Matrix matrix) {
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return ImageHelper.ResizeImage(sourceImage, MaintainAspectRatio, Width, Height, matrix);
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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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public ResizeCanvasEffect(int left, int right, int top, int bottom) {
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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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get;
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set;
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}
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public int Right {
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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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get;
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set;
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}
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public int Bottom {
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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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get;
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set;
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}
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public void Reset() {
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// values don't have a default value
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}
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public Image Apply(Image sourceImage, Matrix matrix) {
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return ImageHelper.ResizeCanvas(sourceImage, BackgroundColor, Left, Right, Top, Bottom, matrix);
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}
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}
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public class EffectConverter : TypeConverter {
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// Fix to prevent BUG-1753
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private NumberFormatInfo numberFormatInfo = new NumberFormatInfo();
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public EffectConverter() : base() {
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numberFormatInfo.NumberDecimalSeparator = ".";
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numberFormatInfo.NumberGroupSeparator = ",";
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}
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public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) {
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if (sourceType == typeof(string)) {
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return true;
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}
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return base.CanConvertFrom(context, sourceType);
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}
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public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) {
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if (destinationType == typeof(string)) {
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return true;
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}
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if (destinationType == typeof(DropShadowEffect)) {
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return true;
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}
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if (destinationType == typeof(TornEdgeEffect)) {
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return true;
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}
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return base.CanConvertTo(context, destinationType);
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}
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public override object ConvertTo(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType) {
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// to string
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if (destinationType == typeof(string)) {
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StringBuilder sb = new StringBuilder();
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if (value.GetType() == typeof(DropShadowEffect)) {
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DropShadowEffect effect = value as DropShadowEffect;
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RetrieveDropShadowEffectValues(effect, sb);
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return sb.ToString();
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}
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if (value.GetType() == typeof(TornEdgeEffect)) {
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TornEdgeEffect effect = value as TornEdgeEffect;
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RetrieveDropShadowEffectValues(effect, sb);
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sb.Append("|");
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RetrieveTornEdgeEffectValues(effect, sb);
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return sb.ToString();
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}
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}
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// from string
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if (value.GetType() == typeof(string)) {
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string settings = value as string;
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if (destinationType == typeof(DropShadowEffect)) {
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DropShadowEffect effect = new DropShadowEffect();
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ApplyDropShadowEffectValues(settings, effect);
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return effect;
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}
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if (destinationType == typeof(TornEdgeEffect)) {
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TornEdgeEffect effect = new TornEdgeEffect();
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ApplyDropShadowEffectValues(settings, effect);
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ApplyTornEdgeEffectValues(settings, effect);
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return effect;
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}
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}
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return base.ConvertTo(context, culture, value, destinationType);
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}
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public override object ConvertFrom(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value) {
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if (value != null && value.GetType() == typeof(string)) {
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string settings = value as string;
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if (settings.Contains("ToothHeight")) {
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return ConvertTo(context, culture, value, typeof(TornEdgeEffect));
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} else {
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return ConvertTo(context, culture, value, typeof(DropShadowEffect));
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}
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}
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return base.ConvertFrom(context, culture, value);
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}
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private void ApplyDropShadowEffectValues(string valuesString, DropShadowEffect effect) {
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string[] values = valuesString.Split('|');
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foreach(string nameValuePair in values) {
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string[] pair = nameValuePair.Split(':');
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switch (pair[0]) {
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case "Darkness" :
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float darkness;
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// Fix to prevent BUG-1753
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if (pair[1] != null && float.TryParse(pair[1], NumberStyles.Float, numberFormatInfo, out darkness)) {
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if (darkness <= 1.0) {
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effect.Darkness = darkness;
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}
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}
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break;
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case "ShadowSize":
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int shadowSize;
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if (int.TryParse(pair[1], out shadowSize)) {
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effect.ShadowSize = shadowSize;
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}
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break;
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case "ShadowOffset":
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Point shadowOffset = new Point();
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int shadowOffsetX;
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int shadowOffsetY;
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string[] coordinates = pair[1].Split(',');
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if (int.TryParse(coordinates[0], out shadowOffsetX)) {
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shadowOffset.X = shadowOffsetX;
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}
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if (int.TryParse(coordinates[1], out shadowOffsetY)) {
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shadowOffset.Y = shadowOffsetY;
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}
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effect.ShadowOffset = shadowOffset;
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break;
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}
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}
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}
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private void ApplyTornEdgeEffectValues(string valuesString, TornEdgeEffect effect) {
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string[] values = valuesString.Split('|');
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foreach (string nameValuePair in values) {
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string[] pair = nameValuePair.Split(':');
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switch (pair[0]) {
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case "GenerateShadow":
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bool generateShadow;
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if (bool.TryParse(pair[1], out generateShadow)) {
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effect.GenerateShadow = generateShadow;
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}
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break;
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case "ToothHeight":
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int toothHeight;
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if (int.TryParse(pair[1], out toothHeight)) {
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effect.ToothHeight = toothHeight;
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}
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break;
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case "HorizontalToothRange":
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int horizontalToothRange;
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if (int.TryParse(pair[1], out horizontalToothRange)) {
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effect.HorizontalToothRange = horizontalToothRange;
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}
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break;
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case "VerticalToothRange":
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int verticalToothRange;
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if (int.TryParse(pair[1], out verticalToothRange)) {
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effect.VerticalToothRange = verticalToothRange;
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}
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break;
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case "Edges":
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string[] edges = pair[1].Split(',');
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bool edge;
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if (bool.TryParse(edges[0], out edge)) {
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effect.Edges[0] = edge;
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}
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if (bool.TryParse(edges[1], out edge)) {
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effect.Edges[1] = edge;
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}
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if (bool.TryParse(edges[2], out edge)) {
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effect.Edges[2] = edge;
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}
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if (bool.TryParse(edges[3], out edge)) {
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effect.Edges[3] = edge;
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}
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break;
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}
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}
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}
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private void RetrieveDropShadowEffectValues(DropShadowEffect effect, StringBuilder sb) {
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// Fix to prevent BUG-1753 is to use the numberFormatInfo
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sb.AppendFormat("Darkness:{0}|ShadowSize:{1}|ShadowOffset:{2},{3}", effect.Darkness.ToString("F2", numberFormatInfo), effect.ShadowSize, effect.ShadowOffset.X, effect.ShadowOffset.Y);
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}
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private void RetrieveTornEdgeEffectValues(TornEdgeEffect effect, StringBuilder sb) {
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sb.AppendFormat("GenerateShadow:{0}|ToothHeight:{1}|HorizontalToothRange:{2}|VerticalToothRange:{3}|Edges:{4},{5},{6},{7}", effect.GenerateShadow, effect.ToothHeight, effect.HorizontalToothRange, effect.VerticalToothRange, effect.Edges[0], effect.Edges[1], effect.Edges[2], effect.Edges[3]);
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}
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}
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} |