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https://github.com/ShareX/ShareX.git
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178 lines
No EOL
7.3 KiB
C#
178 lines
No EOL
7.3 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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using System.Drawing.Drawing2D;
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using System.Drawing.Imaging;
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using System.IO;
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namespace ShareX.ImageEffectsLib
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{
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[Description("Image")]
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public class DrawImage : ImageEffect
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{
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[DefaultValue(""), Editor(typeof(ImageFileNameEditor), typeof(UITypeEditor))]
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public string ImageLocation { get; set; }
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[DefaultValue(ContentAlignment.TopLeft), TypeConverter(typeof(EnumProperNameConverter))]
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public ContentAlignment Placement { get; set; }
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[DefaultValue(typeof(Point), "0, 0")]
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public Point Offset { get; set; }
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[DefaultValue(DrawImageSizeMode.DontResize), Description("How the image watermark should be rescaled, if at all."), TypeConverter(typeof(EnumDescriptionConverter))]
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public DrawImageSizeMode SizeMode { get; set; }
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[DefaultValue(typeof(Size), "0, 0")]
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public Size Size { get; set; }
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[DefaultValue(ImageRotateFlipType.None), TypeConverter(typeof(EnumProperNameKeepCaseConverter))]
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public ImageRotateFlipType RotateFlip { get; set; }
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[DefaultValue(false)]
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public bool Tile { get; set; }
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[DefaultValue(false), Description("If image watermark size bigger than source image then don't draw it.")]
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public bool AutoHide { get; set; }
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[DefaultValue(ImageInterpolationMode.HighQualityBicubic), TypeConverter(typeof(EnumProperNameConverter))]
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public ImageInterpolationMode InterpolationMode { get; set; }
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[DefaultValue(CompositingMode.SourceOver), TypeConverter(typeof(EnumProperNameConverter))]
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public CompositingMode CompositingMode { get; set; }
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private int opacity;
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[DefaultValue(100)]
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public int Opacity
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{
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get
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{
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return opacity;
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}
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set
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{
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opacity = value.Clamp(0, 100);
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}
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}
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public DrawImage()
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{
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this.ApplyDefaultPropertyValues();
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}
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public override Bitmap Apply(Bitmap bmp)
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{
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if (Opacity < 1 || (SizeMode != DrawImageSizeMode.DontResize && Size.Width <= 0 && Size.Height <= 0))
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{
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return bmp;
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}
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string imageFilePath = Helpers.ExpandFolderVariables(ImageLocation, true);
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if (!string.IsNullOrEmpty(imageFilePath) && File.Exists(imageFilePath))
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{
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using (Bitmap bmpWatermark = ImageHelpers.LoadImage(imageFilePath))
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{
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if (bmpWatermark != null)
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{
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if (RotateFlip != ImageRotateFlipType.None)
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{
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bmpWatermark.RotateFlip((RotateFlipType)RotateFlip);
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}
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Size imageSize;
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if (SizeMode == DrawImageSizeMode.AbsoluteSize)
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{
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int width = Size.Width == -1 ? bmp.Width : Size.Width;
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int height = Size.Height == -1 ? bmp.Height : Size.Height;
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imageSize = ImageHelpers.ApplyAspectRatio(width, height, bmpWatermark);
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}
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else if (SizeMode == DrawImageSizeMode.PercentageOfWatermark)
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{
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int width = (int)Math.Round(Size.Width / 100f * bmpWatermark.Width);
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int height = (int)Math.Round(Size.Height / 100f * bmpWatermark.Height);
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imageSize = ImageHelpers.ApplyAspectRatio(width, height, bmpWatermark);
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}
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else if (SizeMode == DrawImageSizeMode.PercentageOfCanvas)
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{
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int width = (int)Math.Round(Size.Width / 100f * bmp.Width);
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int height = (int)Math.Round(Size.Height / 100f * bmp.Height);
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imageSize = ImageHelpers.ApplyAspectRatio(width, height, bmpWatermark);
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}
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else
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{
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imageSize = bmpWatermark.Size;
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}
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Point imagePosition = Helpers.GetPosition(Placement, Offset, bmp.Size, imageSize);
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Rectangle imageRectangle = new Rectangle(imagePosition, imageSize);
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if (AutoHide && !new Rectangle(0, 0, bmp.Width, bmp.Height).Contains(imageRectangle))
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{
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return bmp;
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}
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using (Graphics g = Graphics.FromImage(bmp))
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{
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g.InterpolationMode = ImageHelpers.GetInterpolationMode(InterpolationMode);
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g.PixelOffsetMode = PixelOffsetMode.Half;
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g.CompositingMode = CompositingMode;
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if (Tile)
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{
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using (TextureBrush brush = new TextureBrush(bmpWatermark, WrapMode.Tile))
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{
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brush.TranslateTransform(imageRectangle.X, imageRectangle.Y);
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g.FillRectangle(brush, imageRectangle);
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}
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}
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else if (Opacity < 100)
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{
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using (ImageAttributes ia = new ImageAttributes())
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{
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ColorMatrix matrix = ColorMatrixManager.Alpha(Opacity / 100f);
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ia.SetColorMatrix(matrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap);
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g.DrawImage(bmpWatermark, imageRectangle, 0, 0, bmpWatermark.Width, bmpWatermark.Height, GraphicsUnit.Pixel, ia);
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}
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}
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else
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{
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g.DrawImage(bmpWatermark, imageRectangle);
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}
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}
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}
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}
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}
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return bmp;
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}
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}
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} |