2008-06-14 Everaldo Canuto <ecanuto@novell.com>

2008-06-14  Everaldo Canuto  <ecanuto@novell.com>

	[DataGrid drawing refactory]

	* DataGrid.cs: Fix the caption size, we need one pixel more for divider.

	* DataGridColumnStyle.cs: Removing PaintHeader code, the draw operations
	must be handle by Theme, now it call DataGridPaintColumnHeader.

	* DataGridTextBoxColumn.cs: Fix the textbox size. It must be one pixel less,
	test cases must be also fixed because it checks for wrong size.

	* ThemeWin32Classic.cs:
		- Draw the bottom line of grid caption.
		- Prevent to draw caption text when it is empty.
		- Use CPDrawBorder3D for 3D efects to simplify code.
		- Uses 3D (when not flat) to paint corner shared between row and column
		header.
		- Fix header drawing issues on win32, now borders are drawing.
		- Fix column header paint issues to mimic win32.
		- Adjust header drawing for last column, like first one it must be draw
		different.
		- Added DataGridPaintRowHeaderStar to draw star like .net does, it is
		not an character.
		- DataGridPaintColumnHeader created to draw column headers, it also
		paint stuff right on Win32.
		- Use DataGridPaintColumnHeader method instead of DataGridColumnStyle
		class.

	* Theme.cs:
		- DataGridPaintRowHeaderStar method added.
		- DataGridPaintColumnHeader method added.

svn path=/trunk/mcs/; revision=105904