/// <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);
}
/// <summary>
/// Get font text metrics points.
/// </summary>
/// <param name="hFont"></param>
/// <param name="str"></param>
/// <param name="control"></param>
/// <returns></returns>
public static Size GetTextExt(IntPtr hFont, string str, Control control)
{
Size size = new Size();
using (Graphics g = control.CreateGraphics())
{
IntPtr hdc = g.GetHdc();
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;
size.Height = nativeSize.cy;
NativeWindowCommon.SelectObject(hdc, hFontOld);
g.ReleaseHdc(hdc);
}
return(size);
}
/// <summary>
/// code from gui_dc_calc_start_point
/// </summary>
/// <param name="hdc"></param>
/// <param name="rectangle"></param>
/// <param name="orientation"></param>
/// <param name="str"></param>
/// <param name="contentAlignment"></param>
/// <returns></returns>
public static Point CalculateStartCoordinates(IntPtr hdc, Rectangle rectangle, long orientation,
string str, ContentAlignment contentAlignment)
{
int txt;
Point Start = new Point();
HorizontalAlignment horizontalAlignment = Utils.ContentAlignment2HorizontalAlignment(contentAlignment);
VerticalAlignment verticalAlignment = Utils.ContentAlignment2VerticalAlignment(contentAlignment);
NativeWindowCommon.SIZE size = new NativeWindowCommon.SIZE();
NativeWindowCommon.GetTextExtentPoint32(hdc, str, str.Length, out size);
switch (orientation)
{
case 450:
txt = (int)Math.Sqrt((double)size.cx * size.cx / 2);
if (verticalAlignment == VerticalAlignment.Bottom)
{
Start.Y = rectangle.Bottom - size.cy / 2;
}
else if (verticalAlignment == VerticalAlignment.Center)
{
Start.Y = rectangle.Top + ((rectangle.Bottom - rectangle.Top - size.cy / 2 + txt) / 2);
}
else
{
Start.Y = rectangle.Top + txt;
}
if (horizontalAlignment == HorizontalAlignment.Right)
{
Start.X = rectangle.Right - txt - size.cy / 2;
}
else if (horizontalAlignment == HorizontalAlignment.Center)
{
Start.X = rectangle.Left + ((rectangle.Right - rectangle.Left - size.cy / 2 - txt) / 2);
}
else
{
Start.X = rectangle.Left;
}
break;
case 900:
if (verticalAlignment == VerticalAlignment.Bottom)
{
Start.Y = rectangle.Bottom;
}
else if (verticalAlignment == VerticalAlignment.Center)
{
Start.Y = rectangle.Top + ((rectangle.Bottom - rectangle.Top + size.cx) / 2);
}
else
{
Start.Y = rectangle.Top + size.cx;
}
if (horizontalAlignment == HorizontalAlignment.Right)
{
Start.X = rectangle.Right - size.cy;
}
else if (horizontalAlignment == HorizontalAlignment.Center)
{
Start.X = rectangle.Left + ((rectangle.Right - rectangle.Left - size.cy) / 2);
}
else
{
Start.X = rectangle.Left;
}
break;
case 1350:
txt = (int)Math.Sqrt((double)size.cx * size.cx / 2);
if (verticalAlignment == VerticalAlignment.Bottom)
{
Start.Y = rectangle.Bottom;
}
else if (verticalAlignment == VerticalAlignment.Center)
{
Start.Y = rectangle.Top + ((rectangle.Bottom - rectangle.Top + size.cy / 2 + txt) / 2);
}
else
{
Start.Y = rectangle.Top + txt + size.cy / 2;
}
if (horizontalAlignment == HorizontalAlignment.Right)
{
Start.X = rectangle.Right - size.cy / 2;
}
else if (horizontalAlignment == HorizontalAlignment.Center)
{
Start.X = rectangle.Left + ((rectangle.Right - rectangle.Left - size.cy / 2 + txt) / 2);
}
else
{
Start.X = rectangle.Left + txt;
}
break;
case 1800:
if (verticalAlignment == VerticalAlignment.Bottom)
{
Start.Y = rectangle.Bottom;
}
else if (verticalAlignment == VerticalAlignment.Center)
{
Start.Y = rectangle.Top + ((rectangle.Bottom - rectangle.Top + size.cy) / 2);
}
else
{
Start.Y = rectangle.Top + size.cy;
}
if (horizontalAlignment == HorizontalAlignment.Right)
{
Start.X = rectangle.Right;
}
else if (horizontalAlignment == HorizontalAlignment.Center)
{
Start.X = rectangle.Left + ((rectangle.Right - rectangle.Left + size.cx) / 2);
}
else
{
Start.X = rectangle.Left + size.cx;
}
break;
case 2250:
txt = (int)Math.Sqrt((double)size.cx * size.cx / 2);
if (verticalAlignment == VerticalAlignment.Bottom)
{
Start.Y = rectangle.Bottom - txt;
}
else if (verticalAlignment == VerticalAlignment.Center)
{
Start.Y = rectangle.Top + ((rectangle.Bottom - rectangle.Top + size.cy / 2 - txt) / 2);
}
else
{
Start.Y = rectangle.Top + size.cy / 2;
}
if (horizontalAlignment == HorizontalAlignment.Right)
{
Start.X = rectangle.Right;
}
else if (horizontalAlignment == HorizontalAlignment.Center)
{
Start.X = rectangle.Left + ((rectangle.Right - rectangle.Left + size.cy / 2 + txt) / 2);
}
else
{
Start.X = rectangle.Left + txt + size.cy / 2;
}
break;
case 2700:
if (verticalAlignment == VerticalAlignment.Bottom)
{
Start.Y = rectangle.Bottom - size.cx;
}
else if (verticalAlignment == VerticalAlignment.Center)
{
Start.Y = rectangle.Top + ((rectangle.Bottom - rectangle.Top - size.cx) / 2);
}
else
{
Start.Y = rectangle.Top;
}
if (horizontalAlignment == HorizontalAlignment.Right)
{
Start.X = rectangle.Right;
}
else if (horizontalAlignment == HorizontalAlignment.Center)
{
Start.X = rectangle.Left + ((rectangle.Right - rectangle.Left + size.cy) / 2);
}
else
{
Start.X = rectangle.Left + size.cy;
}
break;
case 3150:
txt = (int)Math.Sqrt((double)size.cx * size.cx / 2);
if (verticalAlignment == VerticalAlignment.Bottom)
{
Start.Y = rectangle.Bottom - txt - size.cy / 2;
}
else if (verticalAlignment == VerticalAlignment.Center)
{
Start.Y = rectangle.Top + ((rectangle.Bottom - rectangle.Top - size.cy / 2 - txt) / 2);
}
else
{
Start.Y = rectangle.Top;
}
if (horizontalAlignment == HorizontalAlignment.Right)
{
Start.X = rectangle.Right - txt;
}
else if (horizontalAlignment == HorizontalAlignment.Center)
{
Start.X = rectangle.Left + ((rectangle.Right - rectangle.Left + size.cy / 2 - txt) / 2);
}
else
{
Start.X = rectangle.Left + size.cy / 2;
}
break;
default:
break;
}
return(Start);
}