Opentk/Source/OpenTK/Platform/GdiPlus.cs
the_fiddler ca9e6262ef Moved GdiPlus to OpenTK.Platform where it belongs.
Removed unused fields in WinGdiPlusInternals.cs.
2008-11-03 23:51:16 +00:00

121 lines
4.3 KiB
C#

#region --- License ---
/* Licensed under the MIT/X11 license.
* Copyright (c) 2006-2008 the OpenTK Team.
* This notice may not be removed from any source distribution.
* See license.txt for licensing details.
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using System.Drawing;
using System.Reflection;
using System.Diagnostics;
namespace OpenTK.Platform
{
internal static class GdiPlus
{
static IGdiPlusInternals internals;
const string gdi_plus_library = "gdiplus.dll";
#region --- Constructors ---
static GdiPlus()
{
if (Configuration.RunningOnWindows)
internals = new Windows.WinGdiPlusInternals();
else
internals = new X11.X11GdiPlusInternals();
}
#endregion
#region --- Public Methods ---
public static IntPtr GetNativeGraphics(System.Drawing.Graphics graphics)
{
return internals.GetNativeGraphics(graphics);
}
public static IntPtr GetNativeFont(Font font)
{
return internals.GetNativeFont(font);
}
public static IntPtr GetNativeStringFormat(StringFormat format)
{
return internals.GetNativeStringFormat(format);
}
public static int MaxMeasurableCharacterRanges
{
get
{
return 32; // This is a GDI+ limitation. TODO: Can we query this somehow?
}
}
[DllImport(gdi_plus_library, CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true, EntryPoint = "GdipSetStringFormatMeasurableCharacterRanges")]
public static extern int SetStringFormatMeasurableCharacterRanges(HandleRef format, int rangeCount, [In, Out] CharacterRange[] range);
[DllImport(gdi_plus_library, CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true, EntryPoint = "GdipGetStringFormatMeasurableCharacterRangeCount")]
public static extern int GetStringFormatMeasurableCharacterRangeCount(HandleRef format, out int count);
[DllImport(gdi_plus_library, CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true, EntryPoint = "GdipMeasureCharacterRanges")]
public static extern int MeasureCharacterRanges(HandleRef graphics, string textString, int length, HandleRef font, ref RectangleF layoutRect, HandleRef stringFormat, int characterCount, [In, Out] IntPtr[] region);
[DllImport("gdiplus.dll", CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true, EntryPoint = "GdipGetRegionBounds")]
public static extern int GetRegionBounds(IntPtr region, HandleRef graphics, ref RectangleF gprectf);
[DllImport("gdiplus.dll", EntryPoint = "GdipCreateRegion", CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true)]
public static extern int CreateRegion(out IntPtr region);
[DllImport("gdiplus.dll", EntryPoint = "GdipDeleteRegion", CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true)]
public static extern int DeleteRegion(IntPtr region);
#endregion
#if false
[StructLayout(LayoutKind.Sequential)]
internal struct GPRECTF
{
internal float X;
internal float Y;
internal float Width;
internal float Height;
internal GPRECTF(float x, float y, float width, float height)
{
this.X = x;
this.Y = y;
this.Width = width;
this.Height = height;
}
internal GPRECTF(RectangleF rect)
{
this.X = rect.X;
this.Y = rect.Y;
this.Width = rect.Width;
this.Height = rect.Height;
}
internal SizeF SizeF
{
get
{
return new SizeF(this.Width, this.Height);
}
}
internal RectangleF ToRectangleF()
{
return new RectangleF(this.X, this.Y, this.Width, this.Height);
}
}
#endif
}
}