/// <summary>
/// Generate mask image of the text strategy.
/// </summary>
/// <param name="strategy">is text strategy</param>
/// <param name="width">is the mask image width</param>
/// <param name="height">is the mask image height</param>
/// <param name="offset">offsets the text (typically used for shadows)</param>
/// <param name="textContext">is text context</param>
/// <returns>a valid mask image if successful</returns>
public static System.Windows.Media.Imaging.WriteableBitmap GenMask(
ITextStrategy strategy,
int width,
int height,
System.Windows.Point offset,
TextContext textContext)
{
if (strategy == null || textContext == null)
{
return(null);
}
RenderTargetBitmap bmp = new RenderTargetBitmap(width, height, 96, 96, PixelFormats.Pbgra32);
DrawingVisual drawingVisual = new DrawingVisual();
DrawingContext drawingContext = drawingVisual.RenderOpen();
strategy.DrawString(drawingContext,
textContext.fontFamily,
textContext.fontStyle,
textContext.fontWeight,
textContext.nfontSize,
textContext.pszText,
new System.Windows.Point(textContext.ptDraw.X + offset.X, textContext.ptDraw.Y + offset.Y),
textContext.ci);
drawingContext.Close();
bmp.Render(drawingVisual);
return(new System.Windows.Media.Imaging.WriteableBitmap(bmp));
}
public static System.Drawing.Bitmap GenMask(
ITextStrategy strategy,
int width,
int height,
System.Drawing.Point offset,
TextContext textContext,
Matrix mat)
{
if (strategy == null || textContext == null)
{
return(null);
}
System.Drawing.Bitmap pBmp = new System.Drawing.Bitmap(width, height, PixelFormat.Format32bppArgb);
using (System.Drawing.Graphics graphics = System.Drawing.Graphics.FromImage(pBmp))
{
graphics.SmoothingMode = SmoothingMode.AntiAlias;
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.Transform = mat;
strategy.DrawString(graphics,
textContext.fontFamily,
textContext.fontStyle,
textContext.nfontSize,
textContext.pszText,
new System.Drawing.Point(textContext.ptDraw.X + offset.X, textContext.ptDraw.Y + offset.Y),
textContext.strFormat);
graphics.ResetTransform();
}
return(pBmp);
}
public static bool DrawTextImage(
ITextStrategy strategy,
System.Drawing.Bitmap image,
System.Drawing.Point offset,
TextContext textContext,
Matrix mat)
{
if (strategy == null || image == null || textContext == null)
{
return(false);
}
bool bRet = false;
using (System.Drawing.Graphics graphics = System.Drawing.Graphics.FromImage(image))
{
graphics.SmoothingMode = SmoothingMode.AntiAlias;
graphics.TextRenderingHint = TextRenderingHint.AntiAlias;
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.Transform = mat;
bRet = strategy.DrawString(graphics,
textContext.fontFamily,
textContext.fontStyle,
textContext.nfontSize,
textContext.pszText,
new System.Drawing.Point(textContext.ptDraw.X + offset.X, textContext.ptDraw.Y + offset.Y),
textContext.strFormat);
graphics.ResetTransform();
}
return(bRet);
}
/// <summary>
/// Draw outline on image
/// </summary>
/// <param name="strategy">is text strategy</param>
/// <param name="image">is the image to be draw upon</param>
/// <param name="offset">offsets the text (typically used for shadows)</param>
/// <param name="textContext">is text context</param>
/// <returns>true if successful</returns>
public static bool DrawTextImage(
ITextStrategy strategy,
ref System.Windows.Media.Imaging.WriteableBitmap image,
System.Windows.Point offset,
TextContext textContext,
System.Windows.Media.Matrix mat)
{
if (strategy == null || image == null || textContext == null)
{
return(false);
}
RenderTargetBitmap bmp = new RenderTargetBitmap((int)(image.Width), (int)(image.Height), 96, 96, PixelFormats.Pbgra32);
DrawingVisual drawingVisual = new DrawingVisual();
DrawingContext drawingContext = drawingVisual.RenderOpen();
MatrixTransform mat_trans = new MatrixTransform();
mat_trans.Matrix = mat;
drawingContext.PushTransform(mat_trans);
drawingContext.DrawImage(image, new Rect(0.0, 0.0, image.Width, image.Height));
bool bRet = strategy.DrawString(drawingContext,
textContext.fontFamily,
textContext.fontStyle,
textContext.fontWeight,
textContext.nfontSize,
textContext.pszText,
new System.Windows.Point(textContext.ptDraw.X + offset.X, textContext.ptDraw.Y + offset.Y),
textContext.ci);
drawingContext.Pop();
drawingContext.Close();
bmp.Render(drawingVisual);
image = new System.Windows.Media.Imaging.WriteableBitmap(bmp);
return(bRet);
}
public static bool DrawTextImage(
ITextStrategy strategy,
CanvasRenderTarget image,
Point offset,
CanvasTextLayout text_layout)
{
if (strategy == null || image == null || text_layout == null)
{
return(false);
}
using (CanvasDrawingSession ds = image.CreateDrawingSession())
{
strategy.DrawString(ds, text_layout, (float)offset.X, (float)offset.Y);
}
return(true);
}
public static CanvasRenderTarget GenMask(
ITextStrategy strategy,
int width,
int height,
Point offset,
CanvasTextLayout text_layout)
{
if (strategy == null || text_layout == null)
{
return(null);
}
CanvasRenderTarget offscreen = GenImage(width, height, Color.FromArgb(0, 0, 0, 0));
using (CanvasDrawingSession ds = offscreen.CreateDrawingSession())
{
strategy.DrawString(ds, text_layout, (float)offset.X, (float)offset.Y);
}
return(offscreen);
}
public static System.Drawing.Bitmap GenMask(
ITextStrategy strategy,
int width,
int height,
System.Drawing.Point offset,
TextContext textContext,
Matrix mat)
{
if (strategy == null || textContext == null)
return null;
System.Drawing.Bitmap pBmp = new System.Drawing.Bitmap(width, height, PixelFormat.Format32bppArgb);
using (System.Drawing.Graphics graphics = System.Drawing.Graphics.FromImage(pBmp))
{
graphics.SmoothingMode = SmoothingMode.AntiAlias;
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.Transform = mat;
strategy.DrawString(graphics,
textContext.fontFamily,
textContext.fontStyle,
textContext.nfontSize,
textContext.pszText,
new System.Drawing.Point(textContext.ptDraw.X + offset.X, textContext.ptDraw.Y + offset.Y),
textContext.strFormat);
graphics.ResetTransform();
}
return pBmp;
}
public static bool DrawTextImage(
ITextStrategy strategy,
System.Drawing.Bitmap image,
System.Drawing.Point offset,
TextContext textContext,
Matrix mat)
{
if (strategy == null || image == null || textContext == null)
return false;
bool bRet = false;
using (System.Drawing.Graphics graphics = System.Drawing.Graphics.FromImage(image))
{
graphics.SmoothingMode = SmoothingMode.AntiAlias;
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.Transform = mat;
bRet = strategy.DrawString(graphics,
textContext.fontFamily,
textContext.fontStyle,
textContext.nfontSize,
textContext.pszText,
new System.Drawing.Point(textContext.ptDraw.X + offset.X, textContext.ptDraw.Y + offset.Y),
textContext.strFormat);
graphics.ResetTransform();
}
return bRet;
}
/// <summary>
/// Generate mask image of the text strategy.
/// </summary>
/// <param name="strategy">is text strategy</param>
/// <param name="width">is the mask image width</param>
/// <param name="height">is the mask image height</param>
/// <param name="offset">offsets the text (typically used for shadows)</param>
/// <param name="textContext">is text context</param>
/// <returns>a valid mask image if successful</returns>
public static System.Windows.Media.Imaging.WriteableBitmap GenMask(
ITextStrategy strategy,
int width,
int height,
System.Windows.Point offset,
TextContext textContext,
System.Windows.Media.Matrix mat)
{
if (strategy == null || textContext == null)
return null;
RenderTargetBitmap bmp = new RenderTargetBitmap(width, height, 96, 96, PixelFormats.Pbgra32);
DrawingVisual drawingVisual = new DrawingVisual();
DrawingContext drawingContext = drawingVisual.RenderOpen();
MatrixTransform mat_trans = new MatrixTransform();
mat_trans.Matrix = mat;
drawingContext.PushTransform(mat_trans);
strategy.DrawString(drawingContext,
textContext.fontFamily,
textContext.fontStyle,
textContext.fontWeight,
textContext.nfontSize,
textContext.pszText,
new System.Windows.Point(textContext.ptDraw.X + offset.X, textContext.ptDraw.Y + offset.Y),
textContext.ci);
drawingContext.Pop();
drawingContext.Close();
bmp.Render(drawingVisual);
return new System.Windows.Media.Imaging.WriteableBitmap(bmp);
}
/// <summary>
/// Draw outline on image
/// </summary>
/// <param name="strategy">is text strategy</param>
/// <param name="image">is the image to be draw upon</param>
/// <param name="offset">offsets the text (typically used for shadows)</param>
/// <param name="textContext">is text context</param>
/// <returns>true if successful</returns>
public static bool DrawTextImage(
ITextStrategy strategy,
ref System.Windows.Media.Imaging.WriteableBitmap image,
System.Windows.Point offset,
TextContext textContext,
System.Windows.Media.Matrix mat)
{
if (strategy == null || image == null || textContext == null)
return false;
RenderTargetBitmap bmp = new RenderTargetBitmap((int)(image.Width), (int)(image.Height), 96, 96, PixelFormats.Pbgra32);
DrawingVisual drawingVisual = new DrawingVisual();
DrawingContext drawingContext = drawingVisual.RenderOpen();
MatrixTransform mat_trans = new MatrixTransform();
mat_trans.Matrix = mat;
drawingContext.PushTransform(mat_trans);
drawingContext.DrawImage(image, new Rect(0.0, 0.0, image.Width, image.Height));
bool bRet = strategy.DrawString(drawingContext,
textContext.fontFamily,
textContext.fontStyle,
textContext.fontWeight,
textContext.nfontSize,
textContext.pszText,
new System.Windows.Point(textContext.ptDraw.X + offset.X, textContext.ptDraw.Y + offset.Y),
textContext.ci);
drawingContext.Pop();
drawingContext.Close();
bmp.Render(drawingVisual);
image = new System.Windows.Media.Imaging.WriteableBitmap(bmp);
return bRet;
}
