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421 lines
15 KiB
C#
421 lines
15 KiB
C#
//
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// System.Drawing.carbonFunctions.cs
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//
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// Authors:
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// Geoff Norton (gnorton@customerdna.com>
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//
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// Copyright (C) 2007 Novell, Inc. (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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#undef DEBUG_CLIPPING
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using System.Collections;
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using System.Reflection;
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using System.Runtime.InteropServices;
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using System.Security;
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namespace System.Drawing {
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internal static class MacSupport {
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internal static Hashtable contextReference = new Hashtable ();
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internal static object lockobj = new object ();
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internal static Delegate hwnd_delegate;
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#if DEBUG_CLIPPING
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internal static float red = 1.0f;
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internal static float green = 0.0f;
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internal static float blue = 0.0f;
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internal static int debug_threshold = 1;
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#endif
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static MacSupport () {
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#if !NETSTANDARD1_6
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foreach (Assembly asm in AppDomain.CurrentDomain.GetAssemblies ()) {
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if (String.Equals (asm.GetName ().Name, "System.Windows.Forms")) {
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Type driver_type = asm.GetType ("System.Windows.Forms.XplatUICarbon");
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if (driver_type != null) {
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hwnd_delegate = (Delegate) driver_type.GetTypeInfo() .GetField ("HwndDelegate", BindingFlags.NonPublic | BindingFlags.Static).GetValue (null);
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}
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}
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}
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#endif
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}
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internal static CocoaContext GetCGContextForNSView (IntPtr handle) {
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if (handle == IntPtr.Zero) {
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return null;
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}
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IntPtr focusView = objc_msgSend (objc_getClass ("NSView"), sel_registerName ("focusView"));
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IntPtr focusHandle = IntPtr.Zero;
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if (focusView != handle) {
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if (!bool_objc_msgSend (handle, sel_registerName ("lockFocusIfCanDraw")))
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return null;
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focusHandle = handle;
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}
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IntPtr windowHandle = objc_msgSend (handle, sel_registerName ("window"));
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IntPtr graphicsContext = objc_msgSend (windowHandle, sel_registerName ("graphicsContext"));
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IntPtr ctx = objc_msgSend (graphicsContext, sel_registerName ("graphicsPort"));
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bool isFlipped = bool_objc_msgSend (handle, sel_registerName ("isFlipped"));
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Size size;
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CGContextSaveGState (ctx);
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if (IntPtr.Size == 4) {
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CGRect32 bounds = new CGRect32 ();
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objc_msgSend_stret (ref bounds, handle, sel_registerName ("bounds"));
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if (isFlipped) {
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CGContextTranslateCTM32 (ctx, bounds.origin.x, bounds.size.height);
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CGContextScaleCTM32 (ctx, 1.0f, -1.0f);
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}
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size = new Size ((int) bounds.size.width, (int) bounds.size.height);
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} else {
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CGRect64 bounds = new CGRect64 ();
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objc_msgSend_stret (ref bounds, handle, sel_registerName ("bounds"));
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if (isFlipped) {
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CGContextTranslateCTM64 (ctx, bounds.origin.x, bounds.size.height);
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CGContextScaleCTM64 (ctx, 1.0f, -1.0f);
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}
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size = new Size ((int) bounds.size.width, (int) bounds.size.height);
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}
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return new CocoaContext (focusHandle, ctx, size.Width, size.Height);
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}
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internal static CarbonContext GetCGContextForView (IntPtr handle) {
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IntPtr context = IntPtr.Zero;
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IntPtr port = IntPtr.Zero;
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IntPtr window = IntPtr.Zero;
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if (IntPtr.Size == 8)
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throw new NotSupportedException ();
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window = GetControlOwner (handle);
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if (handle == IntPtr.Zero || window == IntPtr.Zero) {
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// FIXME: Can we actually get a CGContextRef for the desktop? this makes context IntPtr.Zero
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port = GetQDGlobalsThePort ();
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CreateCGContextForPort (port, ref context);
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CGRect32 desktop_bounds = CGDisplayBounds32 (CGMainDisplayID ());
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return new CarbonContext (port, context, (int)desktop_bounds.size.width, (int)desktop_bounds.size.height);
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}
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QDRect window_bounds = new QDRect ();
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CGRect32 view_bounds = new CGRect32 ();
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port = GetWindowPort (window);
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context = GetContext (port);
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GetWindowBounds (window, 32, ref window_bounds);
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HIViewGetBounds (handle, ref view_bounds);
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HIViewConvertRect (ref view_bounds, handle, IntPtr.Zero);
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if (view_bounds.size.height < 0) view_bounds.size.height = 0;
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if (view_bounds.size.width < 0) view_bounds.size.width = 0;
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CGContextTranslateCTM32 (context, view_bounds.origin.x, (window_bounds.bottom - window_bounds.top) - (view_bounds.origin.y + view_bounds.size.height));
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// Create the original rect path and clip to it
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CGRect32 rc_clip = new CGRect32 (0, 0, view_bounds.size.width, view_bounds.size.height);
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CGContextSaveGState (context);
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Rectangle [] clip_rectangles = (Rectangle []) hwnd_delegate.DynamicInvoke (new object [] {handle});
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if (clip_rectangles != null && clip_rectangles.Length > 0) {
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int length = clip_rectangles.Length;
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CGContextBeginPath (context);
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CGContextAddRect32 (context, rc_clip);
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for (int i = 0; i < length; i++) {
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CGContextAddRect32 (context, new CGRect32 (clip_rectangles [i].X, view_bounds.size.height - clip_rectangles [i].Y - clip_rectangles [i].Height, clip_rectangles [i].Width, clip_rectangles [i].Height));
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}
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CGContextClosePath (context);
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CGContextEOClip (context);
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#if DEBUG_CLIPPING
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if (clip_rectangles.Length >= debug_threshold) {
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CGContextSetRGBFillColor (context, red, green, blue, 0.5f);
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CGContextFillRect (context, rc_clip);
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CGContextFlush (context);
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System.Threading.Thread.Sleep (500);
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if (red == 1.0f) { red = 0.0f; blue = 1.0f; }
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else if (blue == 1.0f) { blue = 0.0f; green = 1.0f; }
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else if (green == 1.0f) { green = 0.0f; red = 1.0f; }
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}
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#endif
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} else {
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CGContextBeginPath (context);
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CGContextAddRect32 (context, rc_clip);
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CGContextClosePath (context);
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CGContextClip (context);
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}
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return new CarbonContext (port, context, (int)view_bounds.size.width, (int)view_bounds.size.height);
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}
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internal static IntPtr GetContext (IntPtr port) {
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IntPtr context = IntPtr.Zero;
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lock (lockobj) {
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#if FALSE
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if (contextReference [port] != null) {
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CreateCGContextForPort (port, ref context);
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} else {
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QDBeginCGContext (port, ref context);
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contextReference [port] = context;
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}
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#else
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CreateCGContextForPort (port, ref context);
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#endif
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}
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return context;
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}
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internal static void ReleaseContext (IntPtr port, IntPtr context) {
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CGContextRestoreGState (context);
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lock (lockobj) {
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#if FALSE
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if (contextReference [port] != null && context == (IntPtr) contextReference [port]) {
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QDEndCGContext (port, ref context);
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contextReference [port] = null;
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} else {
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CFRelease (context);
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}
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#else
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CFRelease (context);
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#endif
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}
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}
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#region Cocoa Methods
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[DllImport("libobjc.dylib")]
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public static extern IntPtr objc_getClass(string className);
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[DllImport("libobjc.dylib")]
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public static extern IntPtr objc_msgSend(IntPtr basePtr, IntPtr selector, string argument);
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[DllImport("libobjc.dylib")]
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public static extern IntPtr objc_msgSend(IntPtr basePtr, IntPtr selector);
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[DllImport("libobjc.dylib")]
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public static extern void objc_msgSend_stret(ref CGRect32 arect, IntPtr basePtr, IntPtr selector);
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[DllImport("libobjc.dylib")]
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public static extern void objc_msgSend_stret(ref CGRect64 arect, IntPtr basePtr, IntPtr selector);
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[DllImport ("libobjc.dylib", EntryPoint = "objc_msgSend")]
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public static extern bool bool_objc_msgSend (IntPtr handle, IntPtr selector);
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[DllImport ("libobjc.dylib", EntryPoint = "objc_msgSend")]
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public static extern bool bool_objc_msgSend_IntPtr (IntPtr handle, IntPtr selector, IntPtr argument);
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[DllImport("libobjc.dylib")]
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public static extern IntPtr sel_registerName(string selectorName);
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#endregion
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[DllImport("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern IntPtr CGMainDisplayID ();
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[DllImport("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon", EntryPoint = "CGDisplayBounds")]
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internal static extern CGRect32 CGDisplayBounds32 (IntPtr display);
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[DllImport("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern int HIViewGetBounds (IntPtr vHnd, ref CGRect32 r);
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[DllImport("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern int HIViewConvertRect (ref CGRect32 r, IntPtr a, IntPtr b);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern IntPtr GetControlOwner (IntPtr aView);
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[DllImport("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern int GetWindowBounds (IntPtr wHnd, uint reg, ref QDRect rect);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern IntPtr GetWindowPort (IntPtr hWnd);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern IntPtr GetQDGlobalsThePort ();
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern void CreateCGContextForPort (IntPtr port, ref IntPtr context);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern void CFRelease (IntPtr context);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern void QDBeginCGContext (IntPtr port, ref IntPtr context);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern void QDEndCGContext (IntPtr port, ref IntPtr context);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon", EntryPoint = "CGContextTranslateCTM")]
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internal static extern void CGContextTranslateCTM32 (IntPtr context, float tx, float ty);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon", EntryPoint = "CGContextScaleCTM")]
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internal static extern void CGContextScaleCTM32 (IntPtr context, float x, float y);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon", EntryPoint = "CGContextTranslateCTM")]
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internal static extern void CGContextTranslateCTM64 (IntPtr context, double tx, double ty);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon", EntryPoint = "CGContextScaleCTM")]
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internal static extern void CGContextScaleCTM64 (IntPtr context, double x, double y);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern void CGContextFlush (IntPtr context);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern void CGContextSynchronize (IntPtr context);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern IntPtr CGPathCreateMutable ();
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon", EntryPoint = "CGContextAddRect")]
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internal static extern void CGContextAddRect32 (IntPtr context, CGRect32 rect);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern void CGContextBeginPath (IntPtr context);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern void CGContextClosePath (IntPtr context);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern void CGContextAddPath (IntPtr context, IntPtr path);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern void CGContextClip (IntPtr context);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern void CGContextEOClip (IntPtr context);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern void CGContextEOFillPath (IntPtr context);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern void CGContextSaveGState (IntPtr context);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern void CGContextRestoreGState (IntPtr context);
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#if DEBUG_CLIPPING
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern void CGContextSetRGBFillColor (IntPtr context, float red, float green, float blue, float alpha);
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[DllImport ("/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon")]
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internal static extern void CGContextFillRect (IntPtr context, CGRect32 rect);
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#endif
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}
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internal struct CGSize32 {
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public float width;
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public float height;
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}
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internal struct CGPoint32 {
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public float x;
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public float y;
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}
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internal struct CGRect32 {
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public CGRect32 (float x, float y, float width, float height) {
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this.origin.x = x;
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this.origin.y = y;
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this.size.width = width;
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this.size.height = height;
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}
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public CGPoint32 origin;
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public CGSize32 size;
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}
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internal struct CGSize64 {
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public double width;
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public double height;
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}
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internal struct CGPoint64 {
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public double x;
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public double y;
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}
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internal struct CGRect64 {
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public CGRect64 (double x, double y, double width, double height) {
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this.origin.x = x;
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this.origin.y = y;
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this.size.width = width;
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this.size.height = height;
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}
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public CGPoint64 origin;
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public CGSize64 size;
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}
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internal struct QDRect
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{
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public short top;
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public short left;
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public short bottom;
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public short right;
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}
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internal struct CarbonContext : IMacContext
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{
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public IntPtr port;
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public IntPtr ctx;
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public int width;
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public int height;
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public CarbonContext (IntPtr port, IntPtr ctx, int width, int height)
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{
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this.port = port;
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this.ctx = ctx;
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this.width = width;
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this.height = height;
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}
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public void Synchronize ()
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{
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MacSupport.CGContextSynchronize (ctx);
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}
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public void Release ()
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{
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MacSupport.ReleaseContext (port, ctx);
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}
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}
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internal class CocoaContext : IMacContext
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{
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public IntPtr focusHandle;
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public IntPtr ctx;
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public int width;
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public int height;
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public CocoaContext (IntPtr focusHandle, IntPtr ctx, int width, int height)
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{
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this.focusHandle = focusHandle;
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this.ctx = ctx;
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this.width = width;
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this.height = height;
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}
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public void Synchronize ()
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{
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MacSupport.CGContextSynchronize (ctx);
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}
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public void Release ()
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{
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if (IntPtr.Zero != focusHandle)
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MacSupport.CGContextFlush (ctx);
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MacSupport.CGContextRestoreGState (ctx);
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if (IntPtr.Zero != focusHandle)
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MacSupport.objc_msgSend (focusHandle, MacSupport.sel_registerName ("unlockFocus"));
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}
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}
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internal interface IMacContext
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{
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void Synchronize ();
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void Release ();
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}
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}
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