/// <summary>
/// Initializes a new instance of the <see cref="FontData"/> class.
/// </summary>
public FontData(XFont font, XPdfFontOptions options)
{
#if GDI && !WPF
CreateGdiFontImage(font, options, font.privateFontCollection);
#endif
#if WPF && !GDI
CreateWpfFontData(font, options);
#endif
#if WPF && GDI
System.Drawing.Font gdiFont = font.RealizeGdiFont();
if (font.font != null)
CreateGdiFontImage(font, options, font.privateFontCollection);
else if (font.typeface != null)
CreateWpfFontData(font, options);
#endif
if (this.data == null)
throw new InvalidOperationException("Cannot allocate font image.");
Read();
}
// ----- MeasureString ------------------------------------------------------------------------
/// <summary>
/// Measures the specified string when drawn with the specified font.
/// </summary>
public XSize MeasureString(string text, XFont font, XStringFormat stringFormat)
{
// TODO: Here comes a lot of code in the future: kerning etc...
if (text == null)
throw new ArgumentNullException("text");
if (font == null)
throw new ArgumentNullException("font");
if (stringFormat == null)
throw new ArgumentNullException("stringFormat");
#if GDI && !WPF
return XSize.FromSizeF(this.gfx.MeasureString(text, font.RealizeGdiFont(), new PointF(0, 0), stringFormat.RealizeGdiStringFormat()));
#endif
#if WPF && !GDI
#if !SILVERLIGHT
//FormattedText formattedText = new FormattedText(text, new CultureInfo("en-us"),
// FlowDirection.LeftToRight, font.typeface, font.Size, System.Windows.Media.Brushes.Black);
FormattedText formattedText = FontHelper.CreateFormattedText(text, font.typeface, font.Size, System.Windows.Media.Brushes.Black);
return new XSize(formattedText.WidthIncludingTrailingWhitespace, formattedText.Height);
#else
return dc.MeasureString(this, text, font, stringFormat);
#endif
#endif
#if WPF && GDI
if (this.targetContext == XGraphicTargetContext.GDI)
{
XSize gdiSize = XSize.FromSizeF(this.gfx.MeasureString(text, font.RealizeGdiFont(), new PointF(0, 0), stringFormat.RealizeGdiStringFormat()));
#if DEBUG
Debug.WriteLine(gdiSize);
#endif
return gdiSize;
}
if (this.targetContext == XGraphicTargetContext.WPF)
{
//double h = font.Height;
//FormattedText formattedText = new FormattedText(text, new CultureInfo("en-us"),
// FlowDirection.LeftToRight, font.typeface, font.Size, System.Windows.Media.Brushes.Black);
FormattedText formattedText = FontHelper.CreateFormattedText(text, font.typeface, font.Size, System.Windows.Media.Brushes.Black);
XSize wpfSize = new XSize(formattedText.WidthIncludingTrailingWhitespace, formattedText.Height);
#if DEBUG
Debug.WriteLine(wpfSize);
#endif
return wpfSize;
}
Debug.Assert(false);
return XSize.Empty;
#endif
}
/// <summary>
/// Draws the specified text string.
/// </summary>
public void DrawString(string text, XFont font, XBrush brush, XRect layoutRectangle, XStringFormat format)
{
if (text == null)
throw new ArgumentNullException("text");
if (font == null)
throw new ArgumentNullException("font");
if (brush == null)
throw new ArgumentNullException("brush");
if (format != null && format.LineAlignment == XLineAlignment.BaseLine && layoutRectangle.Height != 0)
throw new InvalidOperationException("DrawString: With XLineAlignment.BaseLine the height of the layout rectangle must be 0.");
if (text.Length == 0)
return;
if (format == null)
format = XStringFormats.Default;
if (this.drawGraphics)
{
#if GDI
if (this.targetContext == XGraphicTargetContext.GDI)
{
RectangleF rect = layoutRectangle.ToRectangleF();
if (format.LineAlignment == XLineAlignment.BaseLine)
{
double lineSpace = font.GetHeight(this);
int cellSpace = font.FontFamily.GetLineSpacing(font.Style);
int cellAscent = font.FontFamily.GetCellAscent(font.Style);
int cellDescent = font.FontFamily.GetCellDescent(font.Style);
double cyAscent = lineSpace * cellAscent / cellSpace;
cyAscent = lineSpace * font.cellAscent / font.cellSpace;
rect.Offset(0, (float)-cyAscent);
}
this.gfx.DrawString(text, font.RealizeGdiFont(), brush.RealizeGdiBrush(), rect,
format != null ? format.RealizeGdiStringFormat() : null);
}
#endif
#if WPF
if (this.targetContext == XGraphicTargetContext.WPF)
{
#if !SILVERLIGHT
double x = layoutRectangle.X;
double y = layoutRectangle.Y;
double lineSpace = font.GetHeight(this);
double cyAscent = lineSpace * font.cellAscent / font.cellSpace;
double cyDescent = lineSpace * font.cellDescent / font.cellSpace;
bool bold = (font.Style & XFontStyle.Bold) != 0;
bool italic = (font.Style & XFontStyle.Italic) != 0;
bool strikeout = (font.Style & XFontStyle.Strikeout) != 0;
bool underline = (font.Style & XFontStyle.Underline) != 0;
//FormattedText formattedText = new FormattedText(text, new CultureInfo("en-us"), // WPFHACK
// FlowDirection.LeftToRight, font.typeface, font.Size, brush.RealizeWpfBrush());
FormattedText formattedText = FontHelper.CreateFormattedText(text, font.typeface, font.Size, brush.RealizeWpfBrush());
//formattedText.SetTextDecorations(TextDecorations.OverLine);
switch (format.Alignment)
{
case XStringAlignment.Near:
// nothing to do, this is the default
//formattedText.TextAlignment = TextAlignment.Left;
break;
case XStringAlignment.Center:
x += layoutRectangle.Width / 2;
formattedText.TextAlignment = TextAlignment.Center;
break;
case XStringAlignment.Far:
x += layoutRectangle.Width;
formattedText.TextAlignment = TextAlignment.Right;
break;
}
if (PageDirection == XPageDirection.Downwards)
{
switch (format.LineAlignment)
{
case XLineAlignment.Near:
//y += cyAscent;
break;
case XLineAlignment.Center:
// TODO use CapHeight. PDFlib also uses 3/4 of ascent
y += -formattedText.Baseline + (cyAscent * 1 / 3) + layoutRectangle.Height / 2;
//y += -formattedText.Baseline + (font.Size * font.Metrics.CapHeight / font.unitsPerEm / 2) + layoutRectangle.Height / 2;
break;
case XLineAlignment.Far:
y += -formattedText.Baseline - cyDescent + layoutRectangle.Height;
break;
case XLineAlignment.BaseLine:
y -= formattedText.Baseline;
break;
}
}
else
{
// TODOWPF: make unit test
switch (format.LineAlignment)
{
case XLineAlignment.Near:
//y += cyDescent;
break;
case XLineAlignment.Center:
// TODO use CapHeight. PDFlib also uses 3/4 of ascent
//y += -(cyAscent * 3 / 4) / 2 + rect.Height / 2;
break;
case XLineAlignment.Far:
//y += -cyAscent + rect.Height;
break;
case XLineAlignment.BaseLine:
// nothing to do
break;
}
}
//if (bold && !descriptor.IsBoldFace)
//{
// // TODO: emulate bold by thicker outline
//}
//if (italic && !descriptor.IsBoldFace)
//{
// // TODO: emulate italic by shearing transformation
//}
if (underline)
{
formattedText.SetTextDecorations(TextDecorations.Underline);
//double underlinePosition = lineSpace * realizedFont.FontDescriptor.descriptor.UnderlinePosition / font.cellSpace;
//double underlineThickness = lineSpace * realizedFont.FontDescriptor.descriptor.UnderlineThickness / font.cellSpace;
//DrawRectangle(null, brush, x, y - underlinePosition, width, underlineThickness);
}
if (strikeout)
{
formattedText.SetTextDecorations(TextDecorations.Strikethrough);
//double strikeoutPosition = lineSpace * realizedFont.FontDescriptor.descriptor.StrikeoutPosition / font.cellSpace;
//double strikeoutSize = lineSpace * realizedFont.FontDescriptor.descriptor.StrikeoutSize / font.cellSpace;
//DrawRectangle(null, brush, x, y - strikeoutPosition - strikeoutSize, width, strikeoutSize);
}
//this.dc.DrawText(formattedText, layoutRectangle.Location.ToPoint());
this.dc.DrawText(formattedText, new System.Windows.Point(x, y));
#else
dc.DrawString(this, text, font, brush, layoutRectangle, format);
#endif
}
#endif
}
if (this.renderer != null)
this.renderer.DrawString(text, font, brush, layoutRectangle, format);
}
// ----- MeasureString ------------------------------------------------------------------------
/// <summary>
/// Measures the specified string when drawn with the specified font.
/// </summary>
public XSize MeasureString(string text, XFont font, XStringFormat stringFormat)
{
// TODO: Here comes a lot of code in the future: kerning etc...
if (text == null)
throw new ArgumentNullException("text");
if (font == null)
throw new ArgumentNullException("font");
if (stringFormat == null)
throw new ArgumentNullException("stringFormat");
return XSize.FromSizeF(this.gfx.MeasureString(text, font.RealizeGdiFont(), new PointF(0, 0), stringFormat.RealizeGdiStringFormat()));
}
/// <summary>
/// Draws the specified text string.
/// </summary>
public void DrawString(string s, XFont font, XBrush brush, XRect layoutRectangle, XStringFormat format)
{
if (s == null)
throw new ArgumentNullException("s");
if (font == null)
throw new ArgumentNullException("font");
if (brush == null)
throw new ArgumentNullException("brush");
if (format.LineAlignment == XLineAlignment.BaseLine && layoutRectangle.Height != 0)
throw new InvalidOperationException("DrawString: With XLineAlignment.BaseLine the height of the layout rectangle must be 0.");
if (s.Length == 0)
return;
if (format == null)
format = XStringFormat.Default;
if (this.drawGraphics)
{
RectangleF rect = layoutRectangle.ToRectangleF();
if (format.LineAlignment == XLineAlignment.BaseLine)
{
// TODO optimze
double lineSpace = font.GetHeight(this);
int cellSpace = font.FontFamily.GetLineSpacing(font.Style);
int cellAscent = font.FontFamily.GetCellAscent(font.Style);
int cellDescent = font.FontFamily.GetCellDescent(font.Style);
double cyAscent = lineSpace * cellAscent / cellSpace;
cyAscent = lineSpace * font.cellAscent / font.cellSpace;
rect.Offset(0, (float)-cyAscent);
}
this.gfx.DrawString(s, font.RealizeGdiFont(), brush.RealizeGdiBrush(), rect,
format != null ? format.RealizeGdiStringFormat() : null);
}
if (this.renderer != null)
this.renderer.DrawString(s, font, brush, layoutRectangle, format);
}
//internal TrueTypeDescriptor(FontSelector selector)
//{
// throw new NotImplementedException("TrueTypeDescriptor(FontSelector selector)");
//}
internal TrueTypeDescriptor(XFont font)
: this(font.RealizeGdiFont(), font.PdfOptions)
{ }
/// <summary>
/// Create the font image using GDI+ functionality.
/// </summary>
void CreateGdiFontImage(XFont font, XPdfFontOptions options, XPrivateFontCollection privateFontCollection)
{
System.Drawing.Font gdiFont = font.RealizeGdiFont();
NativeMethods.LOGFONT logFont;
#if DEBUG_
logFont = new NativeMethods.LOGFONT();
gdiFont.ToLogFont(logFont);
Debug.WriteLine("FontData: " + logFont.lfFaceName);
#endif
this.data = null;
if (privateFontCollection != null)
{
//XPrivateFont privateFont = privateFontCollection.FindFont(logFont.lfFaceName, logFont.lfWeight >= 700, logFont.lfItalic > 0);
XPrivateFont privateFont = privateFontCollection.FindFont(font.Name, font.Bold, font.Italic);
if (privateFont != null)
{
int size = privateFont.GetFontData(ref this.data, 0);
if (size > 0)
{
this.data = new byte[size];
privateFont.GetFontData(ref this.data, size);
}
}
}
if (this.data == null)
{
int error;
IntPtr hfont = gdiFont.ToHfont();
IntPtr hdc = NativeMethods.GetDC(IntPtr.Zero);
error = Marshal.GetLastWin32Error();
IntPtr oldFont = NativeMethods.SelectObject(hdc, hfont);
error = Marshal.GetLastWin32Error();
// size is exactly the size of the font file.
int size = NativeMethods.GetFontData(hdc, 0, 0, null, 0);
error = Marshal.GetLastWin32Error();
if (size > 0)
{
this.data = new byte[size];
int effectiveSize = NativeMethods.GetFontData(hdc, 0, 0, this.data, this.data.Length);
Debug.Assert(size == effectiveSize);
NativeMethods.SelectObject(hdc, oldFont);
NativeMethods.ReleaseDC(IntPtr.Zero, hdc);
error.GetType();
}
else
{
// Sometimes size is -1 (GDI_ERROR), but I cannot determine why. It happens only with the font 'Symbol'.
// The issue occurs the first time in early 2005, when I start writing PDFsharp. I could not fix it and after
// some code refactoring the problem disappears.
// There was never a report from anyone about this issue.
// Now I get it again (while debugging QBX 2006). Maybe it is a problem with my PC at my home office.
// As a work-around I create a new font handle with a different height value. This works. Maybe the
// font file gets locked somewhere. Very very strange.
// IF SOMEONE ELSE COMES HERE PLEASE LET ME KNOW!
// Clean up old handles
NativeMethods.SelectObject(hdc, oldFont);
NativeMethods.ReleaseDC(IntPtr.Zero, hdc);
// Try again with new font handle
logFont = new NativeMethods.LOGFONT();
gdiFont.ToLogFont(logFont);
logFont.lfHeight += 1; // force new handle
IntPtr hfont2 = NativeMethods.CreateFontIndirect(logFont);
hdc = NativeMethods.GetDC(IntPtr.Zero);
error = Marshal.GetLastWin32Error();
oldFont = NativeMethods.SelectObject(hdc, hfont2);
error = Marshal.GetLastWin32Error();
// size is exactly the size of the font file.
size = NativeMethods.GetFontData(hdc, 0, 0, null, 0);
error = Marshal.GetLastWin32Error();
if (size > 0)
{
this.data = new byte[size];
int effectiveSize = NativeMethods.GetFontData(hdc, 0, 0, this.data, this.data.Length);
Debug.Assert(size == effectiveSize);
}
NativeMethods.SelectObject(hdc, oldFont);
NativeMethods.ReleaseDC(IntPtr.Zero, hdc);
NativeMethods.DeleteObject(hfont2);
error.GetType();
}
}
if (this.data == null)
throw new InvalidOperationException("Internal error. Font data could not retrieved.");
}
/// <summary>
/// Create the font image using GDI+ functionality.
/// </summary>
void CreateGdiFontImage(XFont font, XPdfFontOptions options/*, XPrivateFontCollection privateFontCollection*/)
{
System.Drawing.Font gdiFont = font.RealizeGdiFont();
#if DEBUG_
logFont = new NativeMethods.LOGFONT();
gdiFont.ToLogFont(logFont);
Debug.WriteLine("FontData: " + logFont.lfFaceName);
#endif
this.data = null;
// PFC
//if (privateFontCollection != null)
//{
// //XPrivateFont privateFont = privateFontCollection.FindFont(logFont.lfFaceName, logFont.lfWeight >= 700, logFont.lfItalic > 0);
// XGlyphTypeface privateFont = privateFontCollection.FindFont(font.Name, font.Bold, font.Italic);
// if (privateFont != null)
// {
// //////int size = privateFont.GetData(ref this.data);
// //////if (size > 0)
// //////{
// ////// this.data = new byte[size];
// ////// privateFont.GetData(ref this.data, size);
// //////}
// }
//}
if (this.data == null)
{
var assembly = FontDataConfig.ResourceAssembly;
var name = string.Format("{0}.FontHacks.{1}{2}{3}.fontdat",
assembly != null ? assembly.GetName().Name : string.Empty,
font.Name,
font.Bold ? ".Bold" : string.Empty,
font.Italic ? ".Italic" : string.Empty);
if (assembly != null && new List<string>(assembly.GetManifestResourceNames()).Contains(name))
{
System.Diagnostics.Debug.WriteLine("*** Reading fontdata from Resource");
using (var s = assembly.GetManifestResourceStream(name))
{
this.data = new byte[s.Length];
s.Read(this.data, 0, (int)s.Length);
}
}
else
{
System.Diagnostics.Debug.WriteLine("*** Reading fontdata from GDI+");
int error;
IntPtr hfont = gdiFont.ToHfont();
using(var dcBmp = new Bitmap(100, 100))
using (var dc = Graphics.FromImage(dcBmp))
{
IntPtr hdc = dc.GetHdc();
error = Marshal.GetLastWin32Error();
IntPtr oldFont = NativeMethods.SelectObject(hdc, hfont);
error = Marshal.GetLastWin32Error();
// size is exactly the size of the font file.
int size = NativeMethods.GetFontData(hdc, 0, 0, null, 0);
error = Marshal.GetLastWin32Error();
if (size > 0)
{
this.data = new byte[size];
int effectiveSize = NativeMethods.GetFontData(hdc, 0, 0, this.data, this.data.Length);
Debug.Assert(size == effectiveSize);
if (FontDataConfig.SaveFont)
{
FileExtensions.WriteFileBytes(this.data, string.Format("..\\..\\FontHacks\\{0}{1}{2}.fontdat",
font.Name,
font.Bold ? ".Bold" : string.Empty,
font.Italic ? ".Italic" : string.Empty));
}
NativeMethods.SelectObject(hdc, oldFont);
NativeMethods.ReleaseDC(IntPtr.Zero, hdc);
error.GetType();
}
else
{
// Sometimes size is -1 (GDI_ERROR), but I cannot determine why. It happens only with the font 'Symbol'.
// The issue occurs the first time in early 2005, when I start writing PDFsharp. I could not fix it and after
// some code refactoring the problem disappears.
// There was never a report from anyone about this issue.
// Now I get it again (while debugging QBX 2006). Maybe it is a problem with my PC at my home office.
// As a work-around I create a new font handle with a different height value. This works. Maybe the
// font file gets locked somewhere. Very very strange.
// IF SOMEONE ELSE COMES HERE PLEASE LET ME KNOW!
// Clean up old handles
NativeMethods.SelectObject(hdc, oldFont);
NativeMethods.ReleaseDC(IntPtr.Zero, hdc);
// Try again with new font handle
var logFont = new NativeMethods.LOGFONT();
gdiFont.ToLogFont(logFont);
logFont.lfHeight += 1; // force new handle
IntPtr hfont2 = NativeMethods.CreateFontIndirect(logFont);
hdc = NativeMethods.GetDC(IntPtr.Zero);
error = Marshal.GetLastWin32Error();
oldFont = NativeMethods.SelectObject(hdc, hfont2);
error = Marshal.GetLastWin32Error();
// size is exactly the size of the font file.
size = NativeMethods.GetFontData(hdc, 0, 0, null, 0);
error = Marshal.GetLastWin32Error();
if (size > 0)
{
this.data = new byte[size];
int effectiveSize = NativeMethods.GetFontData(hdc, 0, 0, this.data, this.data.Length);
Debug.Assert(size == effectiveSize);
}
NativeMethods.SelectObject(hdc, oldFont);
NativeMethods.ReleaseDC(IntPtr.Zero, hdc);
NativeMethods.DeleteObject(hfont2);
error.GetType();
}
}
}
if (this.data == null)
throw new InvalidOperationException("Internal error. Font data could not retrieved.");
}
}
