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https://github.com/greenshot/greenshot.git
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59 lines
2.0 KiB
C#
59 lines
2.0 KiB
C#
/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2020 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 System;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using GreenshotPlugin.Core;
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namespace GreenshotPlugin.Effects
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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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} |