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https://github.com/ShareX/ShareX.git
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2c35af0592
Merge commits from Greenshot up through bd71f47e95a46642fe6a83bdd76cc4d2a7eed7c2. Some bug fixes, but mostly structural cleanup.
68 lines
2.7 KiB
C#
68 lines
2.7 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 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 Greenshot.Drawing.Fields;
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using Greenshot.Plugin.Drawing;
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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.Drawing2D;
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namespace Greenshot.Drawing.Filters
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{
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[Serializable]
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public class MagnifierFilter : AbstractFilter
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{
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public MagnifierFilter(DrawableContainer parent) : base(parent)
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{
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AddField(GetType(), FieldType.MAGNIFICATION_FACTOR, 2);
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}
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public override void Apply(Graphics graphics, Bitmap applyBitmap, Rectangle rect, RenderMode renderMode)
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{
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Rectangle applyRect = ImageHelper.CreateIntersectRectangle(applyBitmap.Size, rect, Invert);
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if (applyRect.Width == 0 || applyRect.Height == 0)
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{
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// nothing to do
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return;
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}
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int magnificationFactor = GetFieldValueAsInt(FieldType.MAGNIFICATION_FACTOR);
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GraphicsState state = graphics.Save();
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if (Invert)
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{
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graphics.SetClip(applyRect);
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graphics.ExcludeClip(rect);
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}
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graphics.SmoothingMode = SmoothingMode.None;
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graphics.InterpolationMode = InterpolationMode.NearestNeighbor;
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graphics.CompositingQuality = CompositingQuality.HighQuality;
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graphics.PixelOffsetMode = PixelOffsetMode.None;
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int halfWidth = rect.Width / 2;
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int halfHeight = rect.Height / 2;
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int newWidth = rect.Width / magnificationFactor;
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int newHeight = rect.Height / magnificationFactor;
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Rectangle source = new Rectangle(rect.X + halfWidth - newWidth / 2, rect.Y + halfHeight - newHeight / 2, newWidth, newHeight);
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graphics.DrawImage(applyBitmap, rect, source, GraphicsUnit.Pixel);
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graphics.Restore(state);
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}
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}
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} |