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Restructured folder and Updated Readme

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Felix Faire 2014-11-12 17:18:18 +00:00
parent 8980ed2b9c
commit b01383e8d0
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extras/Demo/Source/Demos/JavaScript.cpp
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/*
==============================================================================
This file is part of the JUCE library - "Jules' Utility Class Extensions"
Copyright 2004-12 by Raw Material Software Ltd.
------------------------------------------------------------------------------
JUCE can be redistributed and/or modified under the terms of the GNU General
Public License (Version 2), as published by the Free Software Foundation.
A copy of the license is included in the JUCE distribution, or can be found
online at www.gnu.org/licenses.
JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
------------------------------------------------------------------------------
To release a closed-source product which uses JUCE, commercial licenses are
available: visit www.rawmaterialsoftware.com/juce for more information.
==============================================================================
*/
#include "../JuceDemoHeader.h"
//==============================================================================
class JavaScriptDemo : public Component,
private CodeDocument::Listener,
private Timer
{
public:
JavaScriptDemo()
{
setOpaque (true);
addAndMakeVisible (editor = new CodeEditorComponent (codeDocument, nullptr));
editor->setFont (Font (Font::getDefaultMonospacedFontName(), 14.0f, Font::plain));
editor->setTabSize (4, true);
outputDisplay.setMultiLine (true);
outputDisplay.setReadOnly (true);
outputDisplay.setCaretVisible (false);
outputDisplay.setFont (Font (Font::getDefaultMonospacedFontName(), 14.0f, Font::plain));
addAndMakeVisible (outputDisplay);
codeDocument.addListener (this);
editor->loadContent (
"/*\n"
" Javascript! In this simple demo, the native\n"
" code provides an object called \'Demo\' which\n"
" has a method \'print\' that writes to the\n"
" console below...\n"
"*/\n"
"\n"
"Demo.print (\"Hello World in JUCE + Javascript!\");\n"
"Demo.print (\"\");\n"
"\n"
"function factorial (n)\n"
"{\n"
" var total = 1;\n"
" while (n > 0)\n"
" total = total * n--;\n"
" return total;\n"
"}\n"
"\n"
"for (var i = 1; i < 10; ++i)\n"
" Demo.print (\"Factorial of \" + i \n"
" + \" = \" + factorial (i));\n");
}
void runScript()
{
outputDisplay.clear();
JavascriptEngine engine;
engine.maximumExecutionTime = RelativeTime::seconds (5);
engine.registerNativeObject ("Demo", new DemoClass (*this));
const double startTime = Time::getMillisecondCounterHiRes();
Result result = engine.execute (codeDocument.getAllContent());
const double elapsedMs = Time::getMillisecondCounterHiRes() - startTime;
if (result.failed())
outputDisplay.setText (result.getErrorMessage());
else
outputDisplay.insertTextAtCaret ("\n(Execution time: " + String (elapsedMs, 2) + " milliseconds)");
}
void consoleOutput (const String& message)
{
outputDisplay.moveCaretToEnd();
outputDisplay.insertTextAtCaret (message + newLine);
}
//==============================================================================
// This class is used by the script, and provides methods that the JS can call.
struct DemoClass : public DynamicObject
{
DemoClass (JavaScriptDemo& demo) : owner (demo)
{
setMethod ("print", print);
}
static Identifier getClassName() { return "Demo"; }
static var print (const var::NativeFunctionArgs& args)
{
if (args.numArguments > 0)
if (DemoClass* thisObject = dynamic_cast<DemoClass*> (args.thisObject.getObject()))
thisObject->owner.consoleOutput (args.arguments[0].toString());
return var::undefined();
}
JavaScriptDemo& owner;
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (DemoClass)
};
void paint (Graphics& g)
{
fillTiledBackground (g);
}
private:
CodeDocument codeDocument;
ScopedPointer<CodeEditorComponent> editor;
TextEditor outputDisplay;
void codeDocumentTextInserted (const String&, int) override { startTimer (300); }
void codeDocumentTextDeleted (int, int) override { startTimer (300); }
void timerCallback() override
{
stopTimer();
runScript();
}
void resized() override
{
Rectangle<int> r (getLocalBounds().reduced (8));
editor->setBounds (r.removeFromTop (proportionOfHeight (0.6f)));
outputDisplay.setBounds (r.withTrimmedTop (8));
}
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (JavaScriptDemo)
};
// This static object will register this demo type in a global list of demos..
static JuceDemoType<JavaScriptDemo> demo ("40 JavaScript");