public Pango.Font GetFont(uint wc)
{
IntPtr raw_ret = pango_fontset_get_font(Handle, wc);
Pango.Font ret = GLib.Object.GetObject(raw_ret) as Pango.Font;
return(ret);
}
public Pango.Font LoadFont(Pango.FontDescription desc)
{
IntPtr raw_ret = pango_context_load_font(Handle, desc == null ? IntPtr.Zero : desc.Handle);
Pango.Font ret = GLib.Object.GetObject(raw_ret) as Pango.Font;
return(ret);
}
public void ExtentsRange(int start, int end, Pango.Font font, Pango.Rectangle ink_rect, Pango.Rectangle logical_rect)
{
IntPtr native_ink_rect = GLib.Marshaller.StructureToPtrAlloc(ink_rect);
IntPtr native_logical_rect = GLib.Marshaller.StructureToPtrAlloc(logical_rect);
pango_glyph_string_extents_range(Handle, start, end, font == null ? IntPtr.Zero : font.Handle, native_ink_rect, native_logical_rect);
Marshal.FreeHGlobal(native_ink_rect);
Marshal.FreeHGlobal(native_logical_rect);
}
private void InternalDrawGlyphs(Pango.Font font, Pango.GlyphString glyphs, int x, int y)
{
DrawGlyphsNativeDelegate unmanaged = class_abi.BaseOverride <DrawGlyphsNativeDelegate>(this.LookupGType(), "draw_glyphs");
if (unmanaged == null)
{
return;
}
unmanaged(this.Handle, font == null ? IntPtr.Zero : font.Handle, glyphs == null ? IntPtr.Zero : glyphs.Handle, x, y);
}
private void InternalDrawGlyph(Pango.Font font, uint glyph, double x, double y)
{
DrawGlyphNativeDelegate unmanaged = class_abi.BaseOverride <DrawGlyphNativeDelegate>(this.LookupGType(), "draw_glyph");
if (unmanaged == null)
{
return;
}
unmanaged(this.Handle, font == null ? IntPtr.Zero : font.Handle, glyph, x, y);
}
private void InternalDrawGlyphs(Pango.Font font, Pango.GlyphString glyphs, int x, int y)
{
DrawGlyphsNativeDelegate unmanaged = null;
unsafe {
IntPtr *raw_ptr = (IntPtr *)(((long)this.LookupGType().GetThresholdType().GetClassPtr()) + (long)class_abi.GetFieldOffset("draw_glyphs"));
unmanaged = (DrawGlyphsNativeDelegate)Marshal.GetDelegateForFunctionPointer(*raw_ptr, typeof(DrawGlyphsNativeDelegate));
}
if (unmanaged == null)
{
return;
}
unmanaged(this.Handle, font == null ? IntPtr.Zero : font.Handle, glyphs == null ? IntPtr.Zero : glyphs.Handle, x, y);
}
public void DrawGlyphs(Pango.Font font, Pango.GlyphString glyphs, int x, int y)
{
pango_renderer_draw_glyphs(Handle, font == null ? IntPtr.Zero : font.Handle, glyphs == null ? IntPtr.Zero : glyphs.Handle, x, y);
}
public void DrawGlyph(Pango.Font font, uint glyph, double x, double y)
{
pango_renderer_draw_glyph(Handle, font == null ? IntPtr.Zero : font.Handle, glyph, x, y);
}
protected virtual void OnDrawGlyphs(Pango.Font font, Pango.GlyphString glyphs, int x, int y)
{
InternalDrawGlyphs(font, glyphs, x, y);
}
protected virtual void OnDrawGlyph(Pango.Font font, uint glyph, double x, double y)
{
InternalDrawGlyph(font, glyph, x, y);
}
bool InvokeNative(Pango.Fontset fontset, Pango.Font font)
{
bool __result = native_cb(fontset == null ? IntPtr.Zero : fontset.Handle, font == null ? IntPtr.Zero : font.Handle, __data);
return(__result);
}
public void DrawText(int x, int y, String text, TextAlign align)
{
Pango.FontDescription fd = Pango.FontDescription.FromString(FontFamily);
fd.Size = Pango.Units.FromPixels(FontSize);
if ((FontStyle & FontStyle.Bold) != 0)
{
fd.Weight = Pango.Weight.Bold;
}
if ((FontStyle & FontStyle.Italic) != 0)
{
fd.Style = Pango.Style.Italic;
}
Pango.Font font = parent.PangoContext.LoadFont(fd);
Pango.Language lang = Pango.Language.FromString("en");
Pango.FontMetrics metrics = font.GetMetrics(lang);
int estWidth = text.Length * metrics.ApproximateCharWidth * 3 / 2;
Pango.Context pango = parent.PangoContext;
Pango.Layout layout = new Pango.Layout(pango)
{
Width = estWidth,
Wrap = Pango.WrapMode.Word, Alignment = Pango.Alignment.Left,
FontDescription = fd
};
int color = this.Color;
ushort cRed = (ushort)((color >> 16) & 0xFF);
ushort cGreen = (ushort)((color >> 8) & 0xFF);
ushort cBlue = (ushort)(color & 0xFF);
layout.Attributes = new Pango.AttrList();
layout.Attributes.Insert(new Pango.AttrForeground(cRed, cGreen, cBlue));
layout.SetText(text);
double x0;
double y0;
double scale = 1.0 / Pango.Scale.PangoScale;
Pango.Rectangle dummy;
Pango.Rectangle extents;
layout.GetExtents(out dummy, out extents);
switch ((TextAlign)((int)align & 7))
{
case TextAlign.Right:
x0 = x - scale * extents.Width;
break;
case TextAlign.Center:
x0 = x - 0.5 * scale * extents.Width;
break;
default:
x0 = x;
break;
}
switch ((TextAlign)((int)align & ~7))
{
case TextAlign.Top:
y0 = y;
break;
case TextAlign.Bottom:
y0 = y - scale * (metrics.Ascent + metrics.Descent);
break;
case TextAlign.VCenter:
y0 = y - 0.5 * scale * metrics.Ascent;
break;
default:
y0 = y - scale * metrics.Ascent;
break;
}
Matrix srcM = Context.Matrix;
Pango.Matrix dstM;
dstM.X0 = 0.0;
dstM.Xx = srcM.Xx;
dstM.Xy = srcM.Xy;
dstM.Y0 = 0.0;
dstM.Yx = srcM.Yx;
dstM.Yy = srcM.Yy;
parent.PangoContext.Matrix = dstM;
srcM.TransformPoint(ref x0, ref y0);
parent.GdkWindow.DrawLayout(parent.Style.TextGC(StateType.Normal),
(int)(0.5 + x0), (int)(0.5 + y0), layout);
dstM.Xx = 1.0;
dstM.Yy = 1.0;
parent.PangoContext.Matrix = dstM;
}
public static void GlyphStringPath(Cairo.Context cr, Pango.Font font, Pango.GlyphString glyphs)
{
pango_cairo_glyph_string_path(cr == null ? IntPtr.Zero : cr.Handle, font == null ? IntPtr.Zero : font.Handle, glyphs == null ? IntPtr.Zero : glyphs.Handle);
}
