public override void Render(AnnContainerMapper mapper, AnnObject annObject)
{
if (mapper == null)
{
ExceptionHelper.ArgumentNullException("mapper");
}
if (annObject == null)
{
ExceptionHelper.ArgumentNullException("annObject");
}
base.Render(mapper, annObject);
AnnRichTextObject annRichTextObject = annObject as AnnRichTextObject;
if (annRichTextObject != null && !String.IsNullOrEmpty(annRichTextObject.Rtf))
{
AnnWinFormsRenderingEngine engine = RenderingEngine as AnnWinFormsRenderingEngine;
if (engine != null && engine.Context != null)
{
AnnRectangleObject tempRect = new AnnRectangleObject();
tempRect.Points.Clear();
foreach (LeadPointD pt in GetRenderPoints(mapper, annRichTextObject))
{
tempRect.Points.Add(pt);
}
double rotation = tempRect.Angle;
if (rotation == 180)
{
rotation = 0;
}
LeadRectD boundsPixels = tempRect.Rect.Clone();
AnnContainerMapper identityMapper = mapper.Clone();
identityMapper.UpdateTransform(LeadMatrix.Identity);
identityMapper.MapResolutions(mapper.SourceDpiX, mapper.SourceDpiY, mapper.SourceDpiX, mapper.SourceDpiY);
boundsPixels = identityMapper.RectFromContainerCoordinates(boundsPixels, annRichTextObject.FixedStateOperations);
if (tempRect.Stroke != null)
{
boundsPixels.Inflate(-tempRect.Stroke.StrokeThickness.Value, -tempRect.Stroke.StrokeThickness.Value);
}
string rtf = annRichTextObject.Rtf;
IntPtr hemfDC;
if (_richTextBox == null)
{
_richTextBox = new InternalRichTextEdit();
}
try
{
_richTextBox.Rtf = rtf;
}
catch
{
using (RichTextBox richTextBox = new RichTextBox())
{
richTextBox.Text = rtf;
annRichTextObject.Rtf = richTextBox.Rtf;
_richTextBox.Rtf = richTextBox.Rtf;
}
}
Graphics graphics = engine.Context;
double dpiX = 96;
double dpiY = 96;
_richTextBox.Location = new Point((int)boundsPixels.Location.X, (int)boundsPixels.Location.Y);
_richTextBox.Size = new Size((int)boundsPixels.Size.Width, (int)boundsPixels.Size.Height);
IntPtr hdc = graphics.GetHdc();
Win32.RECT rc = new Win32.RECT();
rc.left = _richTextBox.ClientRectangle.Left;
rc.top = _richTextBox.ClientRectangle.Top;
rc.right = (int)boundsPixels.Width;
rc.bottom = (int)boundsPixels.Height;
int iWidthMM = SafeNativeMethods.GetDeviceCaps(hdc, Win32.HORZSIZE);
int iHeightMM = SafeNativeMethods.GetDeviceCaps(hdc, Win32.VERTSIZE);
int iWidthPels = SafeNativeMethods.GetDeviceCaps(hdc, Win32.HORZRES);
int iHeightPels = SafeNativeMethods.GetDeviceCaps(hdc, Win32.VERTRES);
rc.left = (rc.left * iWidthMM * 100) / iWidthPels;
rc.top = (rc.top * iHeightMM * 100) / iHeightPels;
rc.right = (rc.right * iWidthMM * 100) / iWidthPels;
rc.bottom = (rc.bottom * iHeightMM * 100) / iHeightPels;
hemfDC = SafeNativeMethods.CreateEnhMetaFile(hdc, null, ref rc, null);
Win32.RECT emfRect = new Win32.RECT();
emfRect.right = (int)boundsPixels.Width;
emfRect.bottom = (int)boundsPixels.Height;
IntPtr brush = SafeNativeMethods.GetStockObject(5);
SafeNativeMethods.SetBkMode(hemfDC, 1);
SafeNativeMethods.FillRect(hemfDC, ref emfRect, brush);
SafeNativeMethods.DeleteObject(brush);
Print(_richTextBox, _richTextBox.ClientRectangle, hemfDC, (int)dpiX, (int)dpiY, false);
IntPtr hemf = SafeNativeMethods.CloseEnhMetaFile(hemfDC);
using (Metafile metaFile = new Metafile(hemf, true))
{
graphics.ReleaseHdc();
GraphicsState state = graphics.Save();
//the mapper transform dosent contain dpi effect so we will add dpi effect .
LeadMatrix matrix = mapper.Transform;
//add dpi effect to the transform
matrix.Scale((float)(mapper.TargetDpiX / mapper.SourceDpiX), (float)(mapper.TargetDpiY / mapper.SourceDpiY));
if ((annRichTextObject.FixedStateOperations & AnnFixedStateOperations.Scrolling) == AnnFixedStateOperations.Scrolling)
{
matrix.Translate(-matrix.OffsetX, -matrix.OffsetY);
}
if ((annRichTextObject.FixedStateOperations & AnnFixedStateOperations.Zooming) == AnnFixedStateOperations.Zooming)
{
double offsetX = matrix.OffsetX;
double offsetY = matrix.OffsetY;
double scaleX = 1.0;
double scaleY = 1.0;
if (matrix.M11 != 0 && matrix.M22 != 0)
{
scaleX = 1.0 / Math.Abs(matrix.M11);
scaleY = 1.0 / Math.Abs(matrix.M22);
}
matrix.Scale(scaleX, scaleY);
}
using (Matrix transform = new Matrix((float)matrix.M11, (float)matrix.M12, (float)matrix.M21, (float)matrix.M22, (float)matrix.OffsetX, (float)matrix.OffsetY))
{
graphics.MultiplyTransform(transform);
graphics.DrawImage(metaFile, new Point((int)boundsPixels.Left, (int)boundsPixels.Top));
}
graphics.Restore(state);
}
}
//EndDraw(graphics, gState);
}
}