author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 30 Apr 2010 10:40:48 +0300 | |
branch | RCL_3 |
changeset 20 | f9bb0fca356a |
parent 19 | 04becd199f91 |
permissions | -rw-r--r-- |
19
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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/** |
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* \file |
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* \brief Target platform dependent Java module for Symbian. |
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* |
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*/ |
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|
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package javax.microedition.m3g; |
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import javax.microedition.lcdui.Graphics; |
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import javax.microedition.lcdui.Image; |
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import org.eclipse.swt.widgets.Display; |
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|
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import com.nokia.mj.impl.nokialcdui.LCDUIInvoker; |
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import org.eclipse.swt.internal.extension.DisplayExtension; |
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|
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/** |
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* Implements platform-dependent functionality. At the moment, this |
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* includes native finalization and some helper methods for |
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* synchronizing 2D and 3D rendering. |
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*/ |
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class Platform |
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{ |
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/** |
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* eSWT display for ui thread access |
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*/ |
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private static Display display = null; |
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private static boolean libraryLoaded = false; |
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|
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//------------------------------------------------------------------ |
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// Package private methods |
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//------------------------------------------------------------------ |
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|
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/** |
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* Executes given runnable in UI thread if caller thread is not UI thread |
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*/ |
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static void executeInUIThread(M3gRunnable obj) |
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{ |
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if (display == null) |
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{ |
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if (!uiThreadAvailable()) |
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{ |
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throw new Error("Ui thread not available"); |
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} |
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} |
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if (display.isDisposed()) |
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{ |
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throw new Error("Display already disposed"); |
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} |
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|
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if (obj != null) |
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{ |
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// If we are not in UI thread use display |
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if (Thread.currentThread() != display.getThread()) |
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{ |
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display.syncExec(obj); |
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} |
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else |
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{ |
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// In this case we are in UI thread so just execute directly |
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obj.run(); |
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} |
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// Check if any exceptions occured in execution |
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// and throw forward in caller thread |
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obj.checkAndThrow(); |
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} |
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} |
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|
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/** |
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* Check the UI thread / toolkit init status and store display if it is available |
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* @return true if either lcdui or eswt toolkit is initialized and ui thread is accessible |
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* otherwise false |
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*/ |
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static boolean uiThreadAvailable() |
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{ |
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if (display != null) |
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{ |
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return true; |
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} |
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else |
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{ |
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display = DisplayExtension.getDisplayInstance(); |
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if (display == null) |
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{ |
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return false; |
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} |
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else |
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{ |
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// UI thread is available, so load native library if not already loaded |
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|
104 |
if (!libraryLoaded) |
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|
105 |
{ |
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106 |
com.nokia.mj.impl.rt.support.Jvm.loadSystemLibrary("javam3g"); |
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|
107 |
libraryLoaded = true; |
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|
108 |
} |
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109 |
return true; |
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110 |
} |
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111 |
} |
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112 |
} |
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113 |
|
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114 |
/** |
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|
115 |
* Registers an Object3D in the global handle-to-object map. The |
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116 |
* handle of the object must already be set at this point! |
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117 |
*/ |
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118 |
static final void registerFinalizer(Object3D obj) |
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119 |
{ |
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120 |
//heuristicGC(); |
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121 |
} |
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122 |
|
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123 |
/** |
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124 |
* Registers a Graphics3D object (not derived from Object3D) for |
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125 |
* finalization. |
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126 |
*/ |
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127 |
static final void registerFinalizer(Graphics3D g3d) |
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128 |
{ |
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129 |
//heuristicGC(); |
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130 |
} |
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131 |
|
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132 |
/** |
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133 |
* Registers an Interface object for finalization |
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134 |
*/ |
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135 |
static final void registerFinalizer(Interface m3g) |
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|
136 |
{ |
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|
137 |
} |
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|
138 |
|
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|
139 |
/** |
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Revision: v2.1.22
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|
140 |
* Registers a Loader object for finalization |
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Revision: v2.1.22
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|
141 |
*/ |
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Revision: v2.1.22
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|
142 |
static final void registerFinalizer(Loader loader) |
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Revision: v2.1.22
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|
143 |
{ |
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Revision: v2.1.22
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|
144 |
} |
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Revision: v2.1.22
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|
145 |
|
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Revision: v2.1.22
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|
146 |
/** |
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Revision: v2.1.22
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|
147 |
* Flushes all pending rendering to a Graphics context and blocks |
04becd199f91
Revision: v2.1.22
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|
148 |
* until finished |
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Revision: v2.1.22
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|
149 |
*/ |
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Revision: v2.1.22
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150 |
static final void sync(Graphics g) |
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Revision: v2.1.22
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|
151 |
{ |
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Revision: v2.1.22
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152 |
//ToolkitInvoker invoker = ToolkitInvoker.getToolkitInvoker(); |
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153 |
//invoker.toolkitSync(invoker.getToolkit()); |
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|
154 |
} |
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Revision: v2.1.22
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|
155 |
|
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|
156 |
/** |
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|
157 |
* Flushes all pending rendering to an Image object |
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Revision: v2.1.22
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|
158 |
*/ |
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|
159 |
static final void sync(Image img) |
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Revision: v2.1.22
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|
160 |
{ |
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Revision: v2.1.22
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|
161 |
//ToolkitInvoker invoker = ToolkitInvoker.getToolkitInvoker(); |
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|
162 |
//invoker.toolkitSync(invoker.getToolkit()); |
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Revision: v2.1.22
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|
163 |
} |
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Revision: v2.1.22
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|
164 |
|
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Revision: v2.1.22
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|
165 |
/** |
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Revision: v2.1.22
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|
166 |
* Finalizes the native peer of an interface |
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Revision: v2.1.22
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|
167 |
*/ |
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|
168 |
static final native void finalizeInterface(int handle); |
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Revision: v2.1.22
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|
169 |
|
04becd199f91
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|
170 |
/** |
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|
171 |
* Finalizes the native peer of an object |
04becd199f91
Revision: v2.1.22
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|
172 |
* JCF: added this wrapper method so we could pass the toolkit handle to the native method. |
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Revision: v2.1.22
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|
173 |
*/ |
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Revision: v2.1.22
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|
174 |
static final void finalizeObject(int handle) |
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Revision: v2.1.22
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|
175 |
{ |
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|
176 |
try |
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|
177 |
{ |
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|
178 |
final int finalHandle = handle; |
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Revision: v2.1.22
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|
179 |
executeInUIThread( |
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Revision: v2.1.22
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|
180 |
new M3gRunnable() |
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|
181 |
{ |
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|
182 |
void doRun() |
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|
183 |
{ |
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|
184 |
_finalizeObject(finalHandle); |
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Revision: v2.1.22
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|
185 |
} |
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|
186 |
}); |
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|
187 |
} |
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|
188 |
catch (Exception e) |
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Revision: v2.1.22
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|
189 |
{ |
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|
190 |
// do nothing |
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Revision: v2.1.22
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|
191 |
} |
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|
192 |
} |
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|
193 |
|
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|
194 |
/** |
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Revision: v2.1.22
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|
195 |
* Finalizes the native peer of an object associated with |
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Revision: v2.1.22
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|
196 |
* given Interface instance |
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|
197 |
*/ |
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|
198 |
static final void finalizeObject(int handle, Interface aInterface) |
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|
199 |
{ |
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|
200 |
try |
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|
201 |
{ |
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|
202 |
final int finalHandle = handle; |
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Revision: v2.1.22
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|
203 |
executeInUIThread( |
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Revision: v2.1.22
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|
204 |
new M3gRunnable() |
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Revision: v2.1.22
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|
205 |
{ |
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|
206 |
public void doRun() |
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Revision: v2.1.22
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|
207 |
{ |
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Revision: v2.1.22
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|
208 |
_finalizeObject(finalHandle); |
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} |
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}); |
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} |
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catch (Exception e) |
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{ |
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// do nothing |
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} |
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} |
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//------------------------------------------------------------------ |
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// Private methods |
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//------------------------------------------------------------------ |
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/** |
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* Trigger GC if minimum free memory limit has been exceeded in the native side |
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*/ |
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static final void heuristicGC() |
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{ |
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} |
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private static final native void _finalizeObject(int handle); |
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} |
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