public static Font FromLogFont(object lf, IntPtr hdc)
{
IntPtr newObject;
LOGFONT o = (LOGFONT)lf;
Status status = GDIPlus.GdipCreateFontFromLogfont(hdc, ref o, out newObject);
GDIPlus.CheckStatus(status);
return(new Font(newObject, "Microsoft Sans Serif", FontStyle.Regular, 10));
}
public static Font GetThemeFont(IntPtr theme, Graphics graphics)
{
if (!_themeFontMap.ContainsKey(theme))
{
using (var m = ManagedHdc.FromGraphics(graphics))
{
LOGFONT font = new LOGFONT();
int ret = GetThemeFont(theme, m.Hdc, 1, 1, PropertyIdentifier.Font, out font);
if (ret != 0)
return SystemFonts.CaptionFont;
Font themeFont = Font.FromLogFont(font);
_themeFontMap.Add(theme, themeFont);
return themeFont;
}
}
return _themeFontMap[theme];
}
public IntPtr ToHfont()
{
if (fontObject == IntPtr.Zero)
{
throw new ArgumentException(Locale.GetText("Object has been disposed."));
}
if (GDIPlus.RunningOnUnix())
{
return(fontObject);
}
// win32 specific code
if (olf == null)
{
olf = new LOGFONT();
ToLogFont(olf);
}
LOGFONT lf = (LOGFONT)olf;
return(GDIPlus.CreateFontIndirect(ref lf));
}
public override IText AddText(string text, double fontSize, System.Windows.Media.SolidColorBrush brush)
{
if (cachedTypeface == null) {
cachedTypeface = CreateTypeface();
}
LOGFONT logfont = new LOGFONT();
logfont.lfFaceName = cachedTypeface.FontFamily.Source;
logfont.lfHeight = -(int)fontSize;
//logfont.lfOutPrecision = 4;
//logfont.lfQuality = 5;
MyText myText = new MyText {
parent = this,
text = text,
color = brush.Color.R | (brush.Color.G << 8) | (brush.Color.B << 16),
font = CreateFontIndirect(ref logfont)
};
//myText.brush = new SolidBrush(myText.color);
texts.Add(myText);
return myText;
}
static extern bool ImmGetCompositionFont(IntPtr hIMC, out LOGFONT font);
public static extern bool ImmSetCompositionFont(IntPtr hImc, LOGFONT lpLogfont);
public static Font FromHfont(IntPtr hfont)
{
IntPtr newObject;
IntPtr hdc;
FontStyle newStyle = FontStyle.Regular;
float newSize;
LOGFONT lf = new LOGFONT();
// Sanity. Should we throw an exception?
if (hfont == IntPtr.Zero)
{
Font result = new Font("Arial", (float)10.0, FontStyle.Regular);
return(result);
}
if (GDIPlus.RunningOnUnix())
{
// If we're on Unix we use our private gdiplus API to avoid Wine
// dependencies in S.D
Status s = GDIPlus.GdipCreateFontFromHfont(hfont, out newObject, ref lf);
GDIPlus.CheckStatus(s);
}
else
{
// This needs testing
// GetDC, SelectObject, ReleaseDC GetTextMetric and
// GetFontFace are not really GDIPlus, see gdipFunctions.cs
newStyle = FontStyle.Regular;
hdc = GDIPlus.GetDC(IntPtr.Zero);
try
{
return(FromLogFont(lf, hdc));
}
finally
{
GDIPlus.ReleaseDC(IntPtr.Zero, hdc);
}
}
if (lf.lfItalic != 0)
{
newStyle |= FontStyle.Italic;
}
if (lf.lfUnderline != 0)
{
newStyle |= FontStyle.Underline;
}
if (lf.lfStrikeOut != 0)
{
newStyle |= FontStyle.Strikeout;
}
if (lf.lfWeight > 400)
{
newStyle |= FontStyle.Bold;
}
if (lf.lfHeight < 0)
{
newSize = lf.lfHeight * -1;
}
else
{
newSize = lf.lfHeight;
}
return(new Font(newObject, lf.lfFaceName, newStyle, newSize));
}
private static extern int GetThemeFont(IntPtr hTheme, IntPtr hdc, int iPartId, int iStateId, [MarshalAs(UnmanagedType.I4)] PropertyIdentifier iPropId, out LOGFONT pFont);
private extern static int GetThemeSysFont(IntPtr hTheme, int iFontId, out LOGFONT plf);
public LOGFONT( LOGFONT lf )
{
Debug.Assert( lf != null, "lf is null" );
this.lfHeight = lf.lfHeight;
this.lfWidth = lf.lfWidth;
this.lfEscapement = lf.lfEscapement;
this.lfOrientation = lf.lfOrientation;
this.lfWeight = lf.lfWeight;
this.lfItalic = lf.lfItalic;
this.lfUnderline = lf.lfUnderline;
this.lfStrikeOut = lf.lfStrikeOut;
this.lfCharSet = lf.lfCharSet;
this.lfOutPrecision = lf.lfOutPrecision;
this.lfClipPrecision = lf.lfClipPrecision;
this.lfQuality = lf.lfQuality;
this.lfPitchAndFamily = lf.lfPitchAndFamily;
this.lfFaceName = lf.lfFaceName;
}
public void Dispose_ToLogFont ()
{
#if !TARGET_JVM
Font f = new Font (name, 12.5f);
f.Dispose ();
LOGFONT lf = new LOGFONT();
f.ToLogFont (lf);
#endif
}
public static Font FromHfont (IntPtr hfont)
{
IntPtr newObject;
IntPtr hdc;
FontStyle newStyle = FontStyle.Regular;
float newSize;
LOGFONT lf = new LOGFONT ();
// Sanity. Should we throw an exception?
if (hfont == IntPtr.Zero) {
Font result = new Font ("Arial", (float)10.0, FontStyle.Regular);
return(result);
}
if (GDIPlus.RunningOnUnix ()) {
// If we're on Unix we use our private gdiplus API to avoid Wine
// dependencies in S.D
Status s = GDIPlus.GdipCreateFontFromHfont (hfont, out newObject, ref lf);
GDIPlus.CheckStatus (s);
} else {
// This needs testing
// GetDC, SelectObject, ReleaseDC GetTextMetric and
// GetFontFace are not really GDIPlus, see gdipFunctions.cs
newStyle = FontStyle.Regular;
hdc = GDIPlus.GetDC (IntPtr.Zero);
try {
return FromLogFont (lf, hdc);
}
finally {
GDIPlus.ReleaseDC (IntPtr.Zero, hdc);
}
}
if (lf.lfItalic != 0) {
newStyle |= FontStyle.Italic;
}
if (lf.lfUnderline != 0) {
newStyle |= FontStyle.Underline;
}
if (lf.lfStrikeOut != 0) {
newStyle |= FontStyle.Strikeout;
}
if (lf.lfWeight > 400) {
newStyle |= FontStyle.Bold;
}
if (lf.lfHeight < 0) {
newSize = lf.lfHeight * -1;
} else {
newSize = lf.lfHeight;
}
return (new Font (newObject, lf.lfFaceName, newStyle, newSize));
}
public void ToLogFont_DenyUnmanagedCode ()
{
Font f;
LOGFONT lf;
lf = new LOGFONT();
f = new Font("Arial", 10);
f.ToLogFont(lf);
}
public void ToLogFont_AssertUnmanagedCode ()
{
Font f = new Font("Arial", 10);
LOGFONT lf = new LOGFONT();
f.ToLogFont (lf);
Assert.AreEqual (400, lf.lfWeight, "lfWeight");
Assert.AreEqual (1, lf.lfCharSet, "lfCharSet");
Assert.AreEqual (f.Name, lf.lfFaceName, "lfFaceName");
LOGFONT_STRUCT lfs = new LOGFONT_STRUCT ();
f.ToLogFont (lfs);
Assert.AreEqual (0, lfs.lfWeight, "struct-lfWeight");
Assert.AreEqual (0, lfs.lfCharSet, "struct-lfCharSet");
Assert.AreEqual (0, lfs.lfHeight, "struct-lfHeight");
Assert.AreEqual (0, lfs.lfWidth, "struct-lfWidth");
Assert.AreEqual (0, lfs.lfEscapement, "struct-lfEscapement");
Assert.AreEqual (0, lfs.lfOrientation, "struct-lfOrientation");
Assert.AreEqual (0, lfs.lfWeight, "struct-lfWeight");
Assert.AreEqual (0, lfs.lfItalic, "struct-lfItalic");
Assert.AreEqual (0, lfs.lfUnderline, "struct-lfUnderline");
Assert.AreEqual (0, lfs.lfStrikeOut, "struct-lfStrikeOut");
Assert.AreEqual (0, lfs.lfCharSet, "struct-lfCharSet");
Assert.AreEqual (0, lfs.lfOutPrecision, "struct-lfOutPrecision");
Assert.AreEqual (0, lfs.lfClipPrecision, "struct-lfClipPrecision");
Assert.AreEqual (0, lfs.lfQuality, "struct-lfQuality");
Assert.AreEqual (0, lfs.lfPitchAndFamily, "struct-lfPitchAndFamily");
Assert.IsNull (lfs.lfFaceName, "struct-lfFaceName");
}
//this returns an IntPtr HFONT because .net's Font class will erase the relevant properties when using its Font.FromLogFont()
//note that whether this is rotated clockwise or CCW might affect how you have to position the text (right-aligned sometimes?, up or down by the height of the font?)
public static IntPtr CreateRotatedHFont(Font font, bool CW)
{
LOGFONT logf = new LOGFONT();
font.ToLogFont(logf);
logf.lfEscapement = CW ? 2700 : 900;
logf.lfOrientation = logf.lfEscapement;
logf.lfOutPrecision = (byte)FontPrecision.OUT_TT_ONLY_PRECIS;
//this doesnt work! .net erases the relevant propreties.. it seems?
//return Font.FromLogFont(logf);
var ret = CreateFontIndirect(logf);
return ret;
}
public static IntPtr CreateNormalHFont(Font font, int width)
{
LOGFONT logf = new LOGFONT();
font.ToLogFont(logf);
logf.lfWidth = width;
logf.lfOutPrecision = (byte)FontPrecision.OUT_TT_ONLY_PRECIS;
var ret = CreateFontIndirect(logf);
return ret;
}
static LOGFONT CopyLogFont( LOGFONT source )
{
LOGFONT dest = new LOGFONT()
{
lfHeight = source.lfHeight,
lfWidth = source.lfWidth,
lfEscapement = source.lfEscapement,
lfOrientation = source.lfOrientation,
lfWeight = source.lfWeight,
lfItalic = source.lfItalic,
lfUnderline = source.lfUnderline,
lfStrikeOut = source.lfStrikeOut,
lfCharSet = source.lfCharSet,
lfOutPrecision = source.lfOutPrecision,
lfClipPrecision = source.lfClipPrecision,
lfQuality = source.lfQuality,
lfPitchAndFamily = source.lfPitchAndFamily,
lfFaceName = source.lfFaceName
};
return dest;
}
internal static extern Status GdipCreateFontFromHfont(IntPtr hdc, out IntPtr font, ref LOGFONT lf);
public void Dispose_ToLogFont_LoopCharSet ()
{
#if !TARGET_JVM
Font f = new Font (name, 12.5f);
f.Dispose ();
LOGFONT lf = new LOGFONT ();
for (int i = Byte.MinValue; i < Byte.MaxValue; i++) {
byte b = (byte) i;
lf.lfHeight = b;
lf.lfWidth = b;
lf.lfEscapement = b;
lf.lfOrientation = b;
lf.lfWeight = b;
lf.lfItalic = b;
lf.lfUnderline = b;
lf.lfStrikeOut = b;
lf.lfCharSet = b;
lf.lfOutPrecision = b;
lf.lfClipPrecision = b;
lf.lfQuality = b;
lf.lfPitchAndFamily = b;
lf.lfFaceName = b.ToString ();
try {
f.ToLogFont (lf);
}
catch (ArgumentException) {
Assert.AreEqual (b, lf.lfHeight, "lfHeight");
Assert.AreEqual (b, lf.lfWidth, "lfWidth");
Assert.AreEqual (b, lf.lfEscapement, "lfEscapement");
Assert.AreEqual (b, lf.lfOrientation, "lfOrientation");
Assert.AreEqual (b, lf.lfWeight, "lfWeight");
Assert.AreEqual (b, lf.lfItalic, "lfItalic");
Assert.AreEqual (b, lf.lfUnderline, "lfUnderline");
Assert.AreEqual (b, lf.lfStrikeOut, "lfStrikeOut");
// special case for 0
Assert.AreEqual ((i == 0) ? (byte)1 : b, lf.lfCharSet, "lfCharSet");
Assert.AreEqual (b, lf.lfOutPrecision, "lfOutPrecision");
Assert.AreEqual (b, lf.lfClipPrecision, "lfClipPrecision");
Assert.AreEqual (b, lf.lfQuality, "lfQuality");
Assert.AreEqual (b, lf.lfPitchAndFamily, "lfPitchAndFamily");
Assert.AreEqual (b.ToString (), lf.lfFaceName, "lfFaceName");
}
catch (Exception e) {
Assert.Fail ("Unexcepted exception {0} at iteration {1}", e, i);
}
}
#endif
}
internal static extern IntPtr CreateFontIndirect (ref LOGFONT logfont);
private static LOGFONT createLogFont(string fontname)
{
LOGFONT lf = new LOGFONT();
lf.lfHeight = 0;
lf.lfWidth = 0;
lf.lfEscapement = 0;
lf.lfOrientation = 0;
lf.lfWeight = 0;
lf.lfItalic = false;
lf.lfUnderline = false;
lf.lfStrikeOut = false;
lf.lfCharSet = FontCharSet.DEFAULT_CHARSET;
lf.lfOutPrecision = 0;
lf.lfClipPrecision = 0;
lf.lfQuality = 0;
lf.lfPitchAndFamily = FontPitchAndFamily.FF_DONTCARE;
lf.lfFaceName = "";
return lf;
}
public IntPtr ToHfont ()
{
if (fontObject == IntPtr.Zero)
throw new ArgumentException (Locale.GetText ("Object has been disposed."));
if (GDIPlus.RunningOnUnix ())
return fontObject;
// win32 specific code
if (olf == null) {
olf = new LOGFONT ();
ToLogFont(olf);
}
LOGFONT lf = (LOGFONT)olf;
return GDIPlus.CreateFontIndirect (ref lf);
}
public static int GetObject(HandleRef hObject, LOGFONT lp)
{
return GetObject(hObject, Marshal.SizeOf(typeof(LOGFONT)), lp);
}
private extern static int GetThemeFont(IntPtr hTheme, IntPtr hdc, int iPartId, int iStateId, int iPropId, out LOGFONT pFont);
public static unsafe int GetObject(HandleRef hObject, ref LOGFONT lp) => GetObject(hObject, sizeof(LOGFONT), ref lp);
public void CreateFont ()
{
IntPtr family;
GDIPlus.GdipCreateFontFamilyFromName ("Arial", IntPtr.Zero, out family);
if (family == IntPtr.Zero)
Assert.Ignore ("Arial isn't available on this platform");
IntPtr font;
Assert.AreEqual (Status.Ok, GDIPlus.GdipCreateFont (family, 10f, FontStyle.Regular, GraphicsUnit.Point, out font), "GdipCreateFont");
Assert.IsTrue (font != IntPtr.Zero, "font");
LOGFONT lf = new LOGFONT ();
lf.lfCharSet = 1;
Assert.AreEqual (Status.InvalidParameter, GDIPlus.GdipGetLogFont (font, IntPtr.Zero, (object) lf), "GdipGetLogFont-null-graphics");
Assert.AreEqual (0, lf.lfCharSet, "lfCharSet-null-graphics");
// other lf members looks like garbage
IntPtr image;
GDIPlus.GdipCreateBitmapFromScan0 (10, 10, 0, PixelFormat.Format32bppArgb, IntPtr.Zero, out image);
Assert.IsTrue (image != IntPtr.Zero, "image");
IntPtr graphics;
GDIPlus.GdipGetImageGraphicsContext (image, out graphics);
Assert.IsTrue (graphics != IntPtr.Zero, "graphics");
lf.lfCharSet = 1;
Assert.AreEqual (Status.InvalidParameter, GDIPlus.GdipGetLogFont (IntPtr.Zero, graphics, (object) lf), "GdipGetLogFont-null");
Assert.AreEqual (0, lf.lfCharSet, "lfCharSet-null");
lf.lfCharSet = 1;
Assert.AreEqual (Status.Ok, GDIPlus.GdipGetLogFont (font, graphics, (object) lf), "GdipGetLogFont");
Assert.AreEqual (0, lf.lfCharSet, "lfCharSet");
// strangely this is 1 in the managed side
lf.lfCharSet = 2;
Assert.AreEqual (Status.Ok, GDIPlus.GdipGetLogFont (font, graphics, (object) lf), "GdipGetLogFont-2");
Assert.AreEqual (0, lf.lfCharSet, "lfCharSet");
// strangely this is 2 in the managed side
Assert.AreEqual (Status.Ok, GDIPlus.GdipDeleteFont (font), "GdipDeleteFont");
Assert.AreEqual (Status.InvalidParameter, GDIPlus.GdipDeleteFont (IntPtr.Zero), "GdipDeleteFont-null");
Assert.AreEqual (Status.Ok, GDIPlus.GdipDeleteFontFamily (family), "GdipDeleteFontFamily");
Assert.AreEqual (Status.Ok, GDIPlus.GdipDisposeImage (image), "GdipDisposeImage");
Assert.AreEqual (Status.Ok, GDIPlus.GdipDeleteGraphics (graphics), "GdipDeleteGraphics");
}
public static extern bool ImmSetCompositionFont(IntPtr hIMC, LOGFONT lf);
private void SetIMEWindowFont(Font f)
{
LOGFONT lf = new LOGFONT();
f.ToLogFont(lf);
lf.lfPitchAndFamily = FIXED_PITCH | FF_MODERN;
SendMessage(
hIMEWnd,
WM_IME_CONTROL,
IMC_SETCOMPOSITIONFONT,
lf
);
}
public static extern IntPtr CreateFontIndirect(ref LOGFONT lf);
public static extern int GetObject(HandleRef hObject, int nSize, ref LOGFONT lf);
private static extern int SendMessage(IntPtr hWnd, int msg, int wParam, LOGFONT lParam);
private void SetIMEWindowFont(Font f)
{
if (disableIME || hIMEWnd == IntPtr.Zero) return;
if (lf == null)
{
lf = new LOGFONT();
f.ToLogFont(lf);
lf.lfFaceName = f.Name; // This is very important! "Font.ToLogFont" Method sets invalid value to LOGFONT.lfFaceName
}
try
{
SendMessage(hIMEWnd, WM_IME_CONTROL, new IntPtr(IMC_SETCOMPOSITIONFONT), lf );
}
catch (AccessViolationException ex)
{
Handle(ex);
}
}
internal static extern int GdipCreateFontFromLogfontW(IntPtr hdc, ref LOGFONT lf, out IntPtr font);
public static bool SetCompositionFont(HwndSource source, IntPtr hIMC, TextArea textArea)
{
if (textArea == null)
throw new ArgumentNullException("textArea");
LOGFONT lf = new LOGFONT();
Rect characterBounds = textArea.TextView.GetCharacterBounds(textArea.Caret.Position, source);
lf.lfFaceName = textArea.FontFamily.Source;
lf.lfHeight = (int)characterBounds.Height;
return ImmSetCompositionFont(hIMC, ref lf);
}
internal static extern IntPtr CreateFontIndirect(ref LOGFONT logfont);
static extern bool ImmSetCompositionFont(IntPtr hIMC, ref LOGFONT font);
internal static extern Status GdipCreateFontFromLogfont(IntPtr hdc, ref LOGFONT lf, out IntPtr ptr);
