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#region License Information ( GPL v3 )
/ *
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
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation ; either version 2
of the License , or ( at your option ) any later version .
This program is distributed in the hope that it will be useful ,
but WITHOUT ANY WARRANTY ; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE . See the
GNU General Public License for more details .
You should have received a copy of the GNU General Public License
along with this program ; if not , write to the Free Software
Foundation , Inc . , 51 Franklin Street , Fifth Floor , Boston , MA 02110 - 1301 , USA .
Optionally you can also view the license at < http : //www.gnu.org/licenses/>.
* /
#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 ;
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))]
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")]
public Size Size { get ; set ; }
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[DefaultValue(ImageRotateFlipType.None), TypeConverter(typeof(EnumProperNameKeepCaseConverter))]
public ImageRotateFlipType RotateFlip { get ; set ; }
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[DefaultValue(false)]
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.")]
public bool AutoHide { get ; set ; }
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[DefaultValue(ImageInterpolationMode.HighQualityBicubic), TypeConverter(typeof(EnumProperNameConverter))]
public ImageInterpolationMode InterpolationMode { get ; set ; }
[DefaultValue(CompositingMode.SourceOver), TypeConverter(typeof(EnumProperNameConverter))]
public CompositingMode CompositingMode { get ; set ; }
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private int opacity ;
[DefaultValue(100)]
public int Opacity
{
get
{
return opacity ;
}
set
{
opacity = value . Clamp ( 0 , 100 ) ;
}
}
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public DrawImage ( )
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{
this . ApplyDefaultPropertyValues ( ) ;
}
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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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{
return bmp ;
}
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 )
{
bmpWatermark . RotateFlip ( ( RotateFlipType ) RotateFlip ) ;
}
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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 ;
int height = Size . Height = = - 1 ? bmp . Height : Size . Height ;
imageSize = ImageHelpers . ApplyAspectRatio ( width , height , bmpWatermark ) ;
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}
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else if ( SizeMode = = DrawImageSizeMode . PercentageOfWatermark )
{
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int width = ( int ) Math . Round ( Size . Width / 100f * bmpWatermark . Width ) ;
int height = ( int ) Math . Round ( Size . Height / 100f * bmpWatermark . Height ) ;
imageSize = ImageHelpers . ApplyAspectRatio ( width , height , bmpWatermark ) ;
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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 ) ;
int height = ( int ) Math . Round ( Size . Height / 100f * bmp . Height ) ;
imageSize = ImageHelpers . ApplyAspectRatio ( width , height , bmpWatermark ) ;
}
else
{
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 ) ;
g . PixelOffsetMode = PixelOffsetMode . Half ;
g . CompositingMode = CompositingMode ;
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if ( Tile )
{
using ( TextureBrush brush = new TextureBrush ( bmpWatermark , WrapMode . Tile ) )
{
brush . TranslateTransform ( imageRectangle . X , imageRectangle . Y ) ;
g . FillRectangle ( brush , imageRectangle ) ;
}
}
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 ) ;
ia . SetColorMatrix ( matrix , ColorMatrixFlag . Default , ColorAdjustType . Bitmap ) ;
g . DrawImage ( bmpWatermark , imageRectangle , 0 , 0 , bmpWatermark . Width , bmpWatermark . Height , GraphicsUnit . Pixel , ia ) ;
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}
}
else
{
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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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return bmp ;
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}
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}
}