/// <summary></summary>
/// <param name="control"></param>
/// <param name="font"></param>
/// <returns></returns>
public static PointF GetFontMetricsByFont(Control control, Font font)
{
PointF retPoint;
lock (_metricsCache)
{
if (!_metricsCache.TryGetValue(font, out retPoint))
{
#if PocketPC
// In PocketPC, Panels don't have CreateGraphics. We go up the parents
// tree until we find a non-panel one.
while (control is Panel)
{
control = control.Parent;
}
#endif
using (Graphics g = control.CreateGraphics())
{
IntPtr hFont = FontHandlesCache.GetInstance().Get(font).FontHandle;
GetTextMetrics(g, hFont, font.Name, (int)font.Size, out retPoint);
}
_metricsCache.Add(font, retPoint);
}
}
return(retPoint);
}
/// <summary>return the size of the string according to the font</summary>
/// <param name="font"></param>
/// <param name="str"></param>
/// <param name="control"></param>
/// <returns></returns>
public static Size GetTextExt(Font font, String str, Control control)
{
Size size = new Size();
if (control != null && str != null)
{
#if PocketPC
Form form = (Form)((control is Form)? control : control.TopLevelControl);
using (Graphics g = form.CreateGraphics())
{
// Mobile does not support GetTextExtentPoint32 or similar functions
SizeF sizef = g.MeasureString(str, font);
size.Width = (int)Math.Ceiling(sizef.Width);
size.Height = (int)Math.Ceiling(sizef.Height);
}
#else
using (Graphics g = control.CreateGraphics())
{
IntPtr hdc = g.GetHdc();
IntPtr hFont = FontHandlesCache.GetInstance().Get(font).FontHandle;
IntPtr hFontOld = (IntPtr)NativeWindowCommon.SelectObject(hdc, hFont);
NativeWindowCommon.SIZE nativeSize = new NativeWindowCommon.SIZE();
NativeWindowCommon.GetTextExtentPoint32(hdc, str, str.Length, out nativeSize);
size.Width = nativeSize.cx; //(int)Math.Ceiling(size.cx);
size.Height = nativeSize.cy; //(int)Math.Ceiling(size.cy);
NativeWindowCommon.SelectObject(hdc, hFontOld);
g.ReleaseHdc(hdc);
}
#endif
}
return(size);
}
public FontDescription(LOGFONT logFont)
{
this.LogFont = logFont;
fontHandleContainer = FontHandlesCache.GetInstance().Get(logFont);
}
public FontDescription(Font font)
{
LogFont = new LOGFONT();
font.ToLogFont(LogFont);
fontHandleContainer = FontHandlesCache.GetInstance().Get(font);
}
