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123 lines
No EOL
3.8 KiB
C#
123 lines
No EOL
3.8 KiB
C#
#region License Information (GPL v3)
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/*
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ShareX - A program that allows you to take screenshots and share any file type
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Copyright (c) 2007-2020 ShareX Team
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Optionally you can also view the license at <http://www.gnu.org/licenses/>.
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*/
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#endregion License Information (GPL v3)
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using ShareX.HelpersLib;
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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.Design;
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namespace ShareX.ImageEffectsLib
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{
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[Description("Force proportions")]
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internal class ForceProportions : ImageEffect
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{
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private int proportionalWidth = 1;
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[DefaultValue(1)]
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public int ProportionalWidth
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{
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get
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{
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return proportionalWidth;
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}
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set
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{
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proportionalWidth = Math.Max(1, value);
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}
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}
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private int proportionalHeight = 1;
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[DefaultValue(1)]
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public int ProportionalHeight
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{
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get
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{
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return proportionalHeight;
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}
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set
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{
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proportionalHeight = Math.Max(1, value);
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}
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}
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public enum ForceProportionsMethod
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{
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Grow,
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Crop
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}
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[DefaultValue(ForceProportionsMethod.Grow)]
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public ForceProportionsMethod Method { get; set; } = ForceProportionsMethod.Grow;
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[DefaultValue(typeof(Color), "Transparent"), Editor(typeof(MyColorEditor), typeof(UITypeEditor)), TypeConverter(typeof(MyColorConverter))]
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public Color GrowFillColor { get; set; } = Color.Transparent;
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public override Bitmap Apply(Bitmap bmp)
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{
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float currentRatio = bmp.Width / (float)bmp.Height;
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float targetRatio = proportionalWidth / (float)proportionalHeight;
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bool isTargetWider = targetRatio > currentRatio;
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int targetWidth = bmp.Width;
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int targetHeight = bmp.Height;
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int marginLeft = 0;
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int marginTop = 0;
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if (Method == ForceProportionsMethod.Crop)
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{
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if (isTargetWider)
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{
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targetHeight = (int)Math.Round(bmp.Width / targetRatio);
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marginTop = (bmp.Height - targetHeight) / 2;
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}
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else
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{
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targetWidth = (int)Math.Round(bmp.Height * targetRatio);
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marginLeft = (bmp.Width - targetWidth) / 2;
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}
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return ImageHelpers.CropBitmap(bmp, new Rectangle(marginLeft, marginTop, targetWidth, targetHeight));
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}
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else if (Method == ForceProportionsMethod.Grow)
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{
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if (isTargetWider)
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{
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targetWidth = (int)Math.Round(bmp.Height * targetRatio);
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}
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else
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{
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targetHeight = (int)Math.Round(bmp.Width / targetRatio);
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}
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return ImageHelpers.ResizeImage(bmp, targetWidth, targetHeight, false, true, GrowFillColor);
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}
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return bmp;
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}
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}
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} |