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