1 /*
   2  * Copyright (c) 2011, 2016, 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 #import <QuartzCore/CATransaction.h>
  32 
  33 @implementation AWTSurfaceLayers
  34 
  35 @synthesize windowLayer;
  36 
  37 - (id) initWithWindowLayer:(CALayer *)aWindowLayer {
  38     self = [super init];
  39     if (self == nil) return self;
  40 
  41     self.windowLayer = aWindowLayer;
  42 
  43     return self;
  44 }
  45 
  46 - (void) dealloc {
  47     self.windowLayer = nil;
  48     [super dealloc];
  49 }
  50 
  51 - (CALayer *) layer {
  52     return layer;
  53 }
  54 
  55 - (void) setLayer:(CALayer *)newLayer {
  56     if (layer != newLayer) {
  57         if (layer != nil || newLayer == nil) {
  58             [layer removeFromSuperlayer];
  59             [layer release];
  60         }
  61 
  62         if (newLayer != nil) {
  63             layer = [newLayer retain];
  64             // REMIND: window layer -> container layer
  65             [windowLayer addSublayer: layer];
  66         }
  67     }
  68 }
  69 
  70 // Updates back buffer size of the layer if it's an OpenGL layer
  71 // including all OpenGL sublayers
  72 + (void) repaintLayersRecursively:(CALayer*)aLayer {
  73     if ([aLayer isKindOfClass:[CAOpenGLLayer class]]) {
  74         [aLayer setNeedsDisplay];
  75     }
  76     for(CALayer *child in aLayer.sublayers) {
  77         [AWTSurfaceLayers repaintLayersRecursively: child];
  78     }
  79 }
  80 
  81 - (void) setBounds:(CGRect)rect {
  82     // translates values to the coordinate system of the "root" layer
  83     rect.origin.y = windowLayer.bounds.size.height - rect.origin.y - rect.size.height;
  84     [CATransaction begin];
  85     [CATransaction setDisableActions:YES];
  86     layer.frame = rect;
  87     [CATransaction commit];
  88     [AWTSurfaceLayers repaintLayersRecursively:layer];
  89 }
  90 
  91 @end
  92 
  93 /*
  94  * Class:     sun_lwawt_macosx_CPlatformComponent
  95  * Method:    nativeCreateLayer
  96  * Signature: ()J
  97  */
  98 JNIEXPORT jlong JNICALL
  99 Java_sun_lwawt_macosx_CPlatformComponent_nativeCreateComponent
 100 (JNIEnv *env, jobject obj, jlong windowLayerPtr)
 101 {
 102   __block AWTSurfaceLayers *surfaceLayers = nil;
 103 
 104 JNF_COCOA_ENTER(env);
 105 
 106     [ThreadUtilities performOnMainThreadWaiting:YES block:^(){
 107 
 108         CALayer *windowLayer = jlong_to_ptr(windowLayerPtr);
 109         surfaceLayers = [[AWTSurfaceLayers alloc] initWithWindowLayer: windowLayer];
 110     }];
 111     
 112 JNF_COCOA_EXIT(env);
 113 
 114   return ptr_to_jlong(surfaceLayers);
 115 }
 116 
 117 /*
 118  * Class:     sun_lwawt_macosx_CPlatformComponent
 119  * Method:    nativeSetBounds
 120  * Signature: (JIIII)V
 121  */
 122 JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CPlatformComponent_nativeSetBounds
 123 (JNIEnv *env, jclass clazz, jlong surfaceLayersPtr, jint x, jint y, jint width, jint height)
 124 {
 125 JNF_COCOA_ENTER(env);
 126 
 127   AWTSurfaceLayers *surfaceLayers = OBJC(surfaceLayersPtr);
 128     
 129   [ThreadUtilities performOnMainThreadWaiting:NO block:^(){
 130 
 131       CGRect rect = CGRectMake(x, y, width, height);
 132       [surfaceLayers setBounds: rect];
 133   }];
 134 
 135 JNF_COCOA_EXIT(env);
 136 }
--- EOF ---