private void Initialize(Bitmap bitmap, RtfImageFormat format, float dpiX, float dpiY)
{
_bitmap = bitmap;
_format = format;
SetDpi(dpiX, dpiY);
}
private void Initialize(Bitmap bitmap, RtfImageFormat format)
{
float dpiX;
float dpiY;
using (Graphics graphics = Graphics.FromImage(bitmap))
{
dpiX = graphics.DpiX;
dpiY = graphics.DpiY;
}
Initialize(bitmap, format, dpiX, dpiY);
}
/// <summary>
/// Initializes an instance of ESCommon.Rtf.RtfImage class.
/// </summary>
/// <param name="bitmap">Bitmap</param>
public RtfImage(Bitmap bitmap)
{
RtfImageFormat format = RtfImageFormat.Wmf;
if (bitmap.RawFormat.Equals(ImageFormat.Jpeg))
{
format = RtfImageFormat.Jpeg;
}
else if (bitmap.RawFormat.Equals(ImageFormat.Png))
{
format = RtfImageFormat.Png;
}
Initialize(bitmap, format);
}
/// <param name="dpiX">Horizontal resolution</param>
/// <param name="dpiX">Vertical resolution</param>
public RtfImage(Bitmap bitmap, RtfImageFormat format, float dpiX, float dpiY)
{
Initialize(bitmap, format, dpiX, dpiY);
}
/// <param name="format">Image format</param>
public RtfImage(Bitmap bitmap, RtfImageFormat format)
{
Initialize(bitmap, format);
}
//
// Write the none shape image with control "\nonshppict" so that
// we can support copy/paste image on Wordpad or legacy apps that only
// handle windows metafile as the cotnrol "\wmetafileN"
private void WriteNoneShapeImage(DocumentNode documentNode, Stream imageStream, RtfImageFormat imageFormat)
{
// Add the image(picture) control
_rtfBuilder.Append("{\\nonshppict{\\pict");
// Add the image(picture) width control
_rtfBuilder.Append("\\picwgoal");
_rtfBuilder.Append(Converters.PxToTwipRounded(documentNode.FormatState.ImageWidth).ToString(CultureInfo.InvariantCulture));
// Add the image(picture) height control
_rtfBuilder.Append("\\pichgoal");
_rtfBuilder.Append(Converters.PxToTwipRounded(documentNode.FormatState.ImageHeight).ToString(CultureInfo.InvariantCulture));
_rtfBuilder.Append("\\wmetafile8");
// Add new line to put the image hexa data
_rtfBuilder.Append("\n");
if (imageFormat != RtfImageFormat.Unknown)
{
string metafileHexDataString = ConvertToMetafileHexDataString(imageStream);
_rtfBuilder.Append(metafileHexDataString);
}
// Add the curly bracket for closing image(picture) control
_rtfBuilder.Append("}}");
}
// Write the shape image with control "\shppict"
private void WriteShapeImage(DocumentNode documentNode, Stream imageStream, RtfImageFormat imageFormat)
{
// Add the image(picture) control
_rtfBuilder.Append("{\\*\\shppict{\\pict");
// Get the current image input size
Size imageInputSize = new Size(documentNode.FormatState.ImageWidth, documentNode.FormatState.ImageHeight);
// Get the natural size that is on the bitmap source
Size imageNaturalSize;
System.Windows.Media.Imaging.BitmapSource bitmapSource = (System.Windows.Media.Imaging.BitmapSource)System.Windows.Media.Imaging.BitmapFrame.Create(imageStream);
if (bitmapSource != null)
{
imageNaturalSize = new Size(bitmapSource.Width, bitmapSource.Height);
}
else
{
imageNaturalSize = new Size(imageInputSize.Width, imageInputSize.Height);
}
// Get the stretch and stretch direction to apply the image scale factor
System.Windows.Media.Stretch imageStretch = GetImageStretch(documentNode.FormatState.ImageStretch);
System.Windows.Controls.StretchDirection imageStretchDirection = GetImageStretchDirection(documentNode.FormatState.ImageStretchDirection);
// Do a simple fixup to handle "0" input size,
// which in practice means unspecified.
if (imageInputSize.Width == 0)
{
if (imageInputSize.Height == 0)
{
imageInputSize.Width = imageNaturalSize.Width;
}
else
{
//
imageInputSize.Width = imageNaturalSize.Width * (imageInputSize.Height / imageNaturalSize.Height);
}
}
if (imageInputSize.Height == 0)
{
if (imageInputSize.Width == 0)
{
imageInputSize.Height = imageNaturalSize.Height;
}
else
{
//
imageInputSize.Height = imageNaturalSize.Height * (imageInputSize.Width / imageNaturalSize.Width);
}
}
// Get computed image scale factor
Size scaleFactor = System.Windows.Controls.Viewbox.ComputeScaleFactor(
imageInputSize,
imageNaturalSize,
imageStretch,
imageStretchDirection);
// Add the image(picture) width control
_rtfBuilder.Append("\\picwgoal");
_rtfBuilder.Append(Converters.PxToTwipRounded(imageNaturalSize.Width * scaleFactor.Width).ToString(CultureInfo.InvariantCulture));
// Add the image(picture) height control
_rtfBuilder.Append("\\pichgoal");
_rtfBuilder.Append(Converters.PxToTwipRounded(imageNaturalSize.Height * scaleFactor.Height).ToString(CultureInfo.InvariantCulture));
// Add the image(picture)type control according to image type(name)
switch (imageFormat)
{
case RtfImageFormat.Gif:
case RtfImageFormat.Tif:
case RtfImageFormat.Bmp:
case RtfImageFormat.Dib:
case RtfImageFormat.Png:
_rtfBuilder.Append("\\pngblip");
break;
case RtfImageFormat.Jpeg:
_rtfBuilder.Append("\\jpegblip");
break;
}
// Add new line to put the image hexa data
_rtfBuilder.Append("\r\n");
if (imageFormat != RtfImageFormat.Unknown)
{
// Convert the image binary data to hex data string that is the default image
// data type on Rtf content
string imageHexDataString = ConvertToImageHexDataString(imageStream);
// Add the image(picture) hex data
_rtfBuilder.Append(imageHexDataString);
}
// Add the curly bracket for closing image(picture) control
_rtfBuilder.Append("}}");
}
