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 package sun.lwawt.macosx;
  27 
  28 import java.awt.*;
  29 import java.awt.event.*;
  30 import java.awt.image.VolatileImage;
  31 
  32 import sun.awt.CGraphicsConfig;
  33 import sun.lwawt.LWWindowPeer;
  34 import sun.lwawt.macosx.event.NSEvent;
  35 
  36 import sun.java2d.SurfaceData;
  37 import sun.java2d.opengl.CGLLayer;
  38 import sun.java2d.opengl.CGLSurfaceData;
  39 
  40 public class CPlatformView extends CFRetainedResource {
  41     private native long nativeCreateView(int x, int y, int width, int height, long windowLayerPtr);
  42 
  43     private LWWindowPeer peer;
  44     private SurfaceData surfaceData;
  45     private CGLLayer windowLayer;
  46     private CPlatformResponder responder;
  47 
  48     public CPlatformView() {
  49         super(0, true);
  50     }
  51 
  52     public void initialize(LWWindowPeer peer, CPlatformResponder responder) {
  53         this.peer = peer;
  54         this.responder = responder;
  55 
  56         if (!LWCToolkit.getSunAwtDisableCALayers()) {
  57             this.windowLayer = new CGLLayer(peer);
  58         }
  59         setPtr(nativeCreateView(0, 0, 0, 0, getWindowLayerPtr()));
  60     }
  61 
  62     public long getAWTView() {
  63         return ptr;
  64     }
  65 
  66     public boolean isOpaque() {
  67         return peer.isOpaque();
  68     }
  69 
  70     /*
  71      * All coordinates passed to the method should be based on the origin being in the bottom-left corner (standard
  72      * Cocoa coordinates).
  73      */
  74     public void setBounds(int x, int y, int width, int height) {
  75         CWrapper.NSView.setFrame(ptr, x, y, width, height);
  76     }
  77 
  78     // REMIND: CGLSurfaceData expects top-level's size
  79     public Rectangle getBounds() {
  80         return peer.getBounds();
  81     }
  82 
  83     public Object getDestination() {
  84         return peer;
  85     }
  86 
  87     public void enterFullScreenMode(final long nsWindowPtr) {
  88         CWrapper.NSView.enterFullScreenMode(ptr);
  89 
  90         // REMIND: CGLSurfaceData expects top-level's size
  91         // and therefore we need to account insets before
  92         // recreating the surface data
  93         Insets insets = peer.getInsets();
  94 
  95         Rectangle screenBounds;
  96         final long screenPtr = CWrapper.NSWindow.screen(nsWindowPtr);
  97         try {
  98             screenBounds = CWrapper.NSScreen.frame(screenPtr).getBounds();
  99         } finally {
 100             CWrapper.NSObject.release(screenPtr);
 101         }
 102 
 103         // the move/size notification from the underlying system comes
 104         // but it contains a bounds smaller than the whole screen
 105         // and therefore we need to create the synthetic notifications
 106         peer.notifyReshape(screenBounds.x - insets.left,
 107                            screenBounds.y - insets.bottom,
 108                            screenBounds.width + insets.left + insets.right,
 109                            screenBounds.height + insets.top + insets.bottom);
 110     }
 111 
 112     public void exitFullScreenMode() {
 113         CWrapper.NSView.exitFullScreenMode(ptr);
 114     }
 115 
 116     // ----------------------------------------------------------------------
 117     // PAINTING METHODS
 118     // ----------------------------------------------------------------------
 119 
 120     public void drawImageOnPeer(VolatileImage xBackBuffer, int x1, int y1, int x2, int y2) {
 121         Graphics g = peer.getGraphics();
 122         try {
 123             g.drawImage(xBackBuffer, x1, y1, x2, y2, x1, y1, x2, y2, null);
 124         } finally {
 125             g.dispose();
 126         }
 127     }
 128 
 129     public Image createBackBuffer() {
 130         Rectangle r = peer.getBounds();
 131         Image im = null;
 132         if (!r.isEmpty()) {
 133             int transparency = (isOpaque() ? Transparency.OPAQUE : Transparency.TRANSLUCENT);
 134             im = peer.getGraphicsConfiguration().createCompatibleImage(r.width, r.height, transparency);
 135         }
 136         return im;
 137     }
 138 
 139     public SurfaceData replaceSurfaceData() {
 140         if (!LWCToolkit.getSunAwtDisableCALayers()) {
 141             surfaceData = windowLayer.replaceSurfaceData();
 142         } else {
 143             if (surfaceData == null) {
 144                 CGraphicsConfig graphicsConfig = (CGraphicsConfig)peer.getGraphicsConfiguration();
 145                 surfaceData = graphicsConfig.createSurfaceData(this);
 146             } else {
 147                 validateSurface();
 148             }
 149         }
 150         return surfaceData;
 151     }
 152 
 153     private void validateSurface() {
 154         if (surfaceData != null) {
 155             ((CGLSurfaceData)surfaceData).validate();
 156         }
 157     }
 158 
 159     public GraphicsConfiguration getGraphicsConfiguration() {
 160         return peer.getGraphicsConfiguration();
 161     }
 162 
 163     public SurfaceData getSurfaceData() {
 164         return surfaceData;
 165     }
 166 
 167     @Override
 168     public void dispose() {
 169         if (!LWCToolkit.getSunAwtDisableCALayers()) {
 170             windowLayer.dispose();
 171         }
 172         super.dispose();
 173     }
 174 
 175     public long getWindowLayerPtr() {
 176         if (!LWCToolkit.getSunAwtDisableCALayers()) {
 177             return windowLayer.getPointer();
 178         } else {
 179             return 0;
 180         }
 181     }
 182 
 183     // ----------------------------------------------------------------------
 184     // NATIVE CALLBACKS
 185     // ----------------------------------------------------------------------
 186 
 187     private void deliverMouseEvent(NSEvent event) {
 188         int x = event.getX();
 189         int y = getBounds().height - event.getY();
 190 
 191         if (event.getType() == CocoaConstants.NSScrollWheel) {
 192             responder.handleScrollEvent(x, y, event.getModifierFlags(),
 193                                         event.getScrollDeltaX(), event.getScrollDeltaY());
 194         } else {
 195             responder.handleMouseEvent(event.getType(), event.getModifierFlags(), event.getButtonNumber(),
 196                                        event.getClickCount(), x, y, event.getAbsX(), event.getAbsY());
 197         }
 198     }
 199 
 200     private void deliverKeyEvent(NSEvent event) {
 201         responder.handleKeyEvent(event.getType(), event.getModifierFlags(),
 202                                  event.getCharactersIgnoringModifiers(), event.getKeyCode(), true);
 203     }
 204 
 205     private void deliverWindowDidExposeEvent() {
 206         Rectangle r = peer.getBounds();
 207         peer.notifyExpose(0, 0, r.width, r.height);
 208     }
 209 
 210     private void deliverWindowDidExposeEvent(float x, float y, float w, float h) {
 211         peer.notifyExpose((int)x, (int)y, (int)w, (int)h);
 212     }
 213 }