public void DrawString(Color color, FontConfig font, int x, int y, string text)
{
x -= origin.X;
y -= origin.Y;
var xftColorPtr = Marshal.AllocHGlobal(Marshal.SizeOf <XftColor>());
try
{
XRenderColor xColor = new XRenderColor(color);
LibXft.XftColorAllocValue(
display,
visual,
colormap,
ref xColor,
xftColorPtr
);
try
{
XftFontExt fontExt = objectCache.GetXftFont(font);
var fontInfo = Marshal.PtrToStructure <XftFont>(fontExt.MainFont);
int xOffset = DrawString(xftDraw, xftColorPtr, fontExt, x, y + fontInfo.ascent, text);
if (font.IsUnderline)
{
int lineHeight = Convert.ToInt32(Math.Max(font.Size / 10, 1));
LibXRender.XRenderFillRectangle(
display, PictOp.PictOpOver, pictureId, ref xColor,
x,
y + fontInfo.ascent + (fontInfo.descent - lineHeight) / 2,
(uint)xOffset,
(uint)lineHeight
);
}
if (font.IsStrikeout)
{
int lineHeight = Convert.ToInt32(Math.Max(font.Size / 20, 1));
LibXRender.XRenderFillRectangle
(
display, PictOp.PictOpOver, pictureId, ref xColor,
x,
y + fontInfo.ascent - (2 * fontInfo.ascent + 3 * lineHeight) / 6,
(uint)xOffset,
(uint)lineHeight
);
}
}
finally
{
LibXft.XftColorFree(display, visual, colormap, xftColorPtr);
}
}
finally
{
Marshal.FreeHGlobal(xftColorPtr);
}
}
public void FillRectangle(Color color, int x, int y, int width, int height)
{
// todo: <= 0 instead?
if (width < 0 || height < 0)
{
return;
}
x -= origin.X;
y -= origin.Y;
XRenderColor xColor = new XRenderColor(color);
LibXRender.XRenderFillRectangle(display, PictOp.PictOpOver, pictureId, ref xColor, x, y, (uint)width, (uint)height);
}