1 /*
   2  * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #import "AWTSurfaceLayers.h"
  27 #import "ThreadUtilities.h"
  28 #import "LWCToolkit.h"
  29 
  30 #import <JavaNativeFoundation/JavaNativeFoundation.h>
  31 
  32 @implementation AWTSurfaceLayers
  33 
  34 @synthesize windowLayer;
  35 
  36 - (id) initWithWindowLayer:(CALayer *)aWindowLayer {
  37     self = [super init];
  38     if (self == nil) return self;
  39 
  40     windowLayer = aWindowLayer;
  41 
  42     return self;
  43 }
  44 
  45 
  46 - (CALayer *) layer {
  47     return layer;
  48 }
  49 
  50 - (void) setLayer:(CALayer *)newLayer {
  51     if (layer != newLayer) {
  52         if (layer != nil || newLayer == nil) {
  53             [layer removeFromSuperlayer];
  54             [layer release];
  55         }
  56 
  57         if (newLayer != nil) {
  58             layer = [newLayer retain];
  59             // REMIND: window layer -> container layer
  60             [windowLayer addSublayer: layer];
  61         }
  62     }
  63 }
  64 
  65 // Updates back buffer size of the layer if it's an OpenGL layer
  66 // including all OpenGL sublayers
  67 + (void) repaintLayersRecursively:(CALayer*)aLayer {
  68     if ([aLayer isKindOfClass:[CAOpenGLLayer class]]) {
  69         [aLayer setNeedsDisplay];
  70     }
  71     for(CALayer *child in aLayer.sublayers) {
  72         [AWTSurfaceLayers repaintLayersRecursively: child];
  73     }
  74 }
  75 
  76 - (void) setBounds:(CGRect)rect {
  77     layer.anchorPoint = CGPointMake(0, 0);
  78 
  79     // translates values to the coordinate system of the "root" layer
  80     CGFloat newY = windowLayer.bounds.size.height - rect.origin.y - rect.size.height;
  81     CGRect newRect = CGRectMake(rect.origin.x, newY, rect.size.width, rect.size.height);
  82 
  83     layer.frame = newRect;
  84 
  85     [AWTSurfaceLayers repaintLayersRecursively:layer];
  86 }
  87 
  88 @end
  89 
  90 /*
  91  * Class:     sun_lwawt_macosx_CPlatformComponent
  92  * Method:    nativeCreateLayer
  93  * Signature: ()J
  94  */
  95 JNIEXPORT jlong JNICALL
  96 Java_sun_lwawt_macosx_CPlatformComponent_nativeCreateComponent
  97 (JNIEnv *env, jobject obj, jlong windowLayerPtr)
  98 {
  99   __block AWTSurfaceLayers *surfaceLayers = nil;
 100 
 101 JNF_COCOA_ENTER(env);
 102 AWT_ASSERT_NOT_APPKIT_THREAD;
 103 
 104   [JNFRunLoop performOnMainThreadWaiting:YES withBlock:^(){
 105       AWT_ASSERT_APPKIT_THREAD;
 106 
 107       CALayer *windowLayer = jlong_to_ptr(windowLayerPtr);
 108       surfaceLayers = [[AWTSurfaceLayers alloc] initWithWindowLayer: windowLayer];
 109       CFRetain(surfaceLayers);
 110       [surfaceLayers release];
 111     }];
 112 
 113 JNF_COCOA_EXIT(env);
 114 
 115   return ptr_to_jlong(surfaceLayers);
 116 }
 117 
 118 /*
 119  * Class:     sun_lwawt_macosx_CPlatformComponent
 120  * Method:    nativeSetBounds
 121  * Signature: (JIIII)V
 122  */
 123 JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CPlatformComponent_nativeSetBounds
 124 (JNIEnv *env, jclass clazz, jlong surfaceLayersPtr, jint x, jint y, jint width, jint height)
 125 {
 126 JNF_COCOA_ENTER(env);
 127 
 128   AWTSurfaceLayers *surfaceLayers = OBJC(surfaceLayersPtr);
 129   [JNFRunLoop performOnMainThreadWaiting:NO withBlock:^(){
 130       AWT_ASSERT_APPKIT_THREAD;
 131 
 132       CGRect rect = CGRectMake(x, y, width, height);
 133       [surfaceLayers setBounds: rect];
 134     }];
 135 
 136 JNF_COCOA_EXIT(env);
 137 }