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82 lines
2.8 KiB
C++
82 lines
2.8 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2015 - ROLI Ltd.
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Permission is granted to use this software under the terms of either:
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a) the GPL v2 (or any later version)
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b) the Affero GPL v3
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Details of these licenses can be found at: www.gnu.org/licenses
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.juce.com for more information.
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==============================================================================
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*/
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#pragma once
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//==============================================================================
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/**
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A base class for writing simple one-page graphical apps.
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A subclass can inherit from this and implement just a few methods such as
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paint() and mouse-handling. The base class provides some simple abstractions
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to take care of continuously repainting itself.
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*/
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class JUCE_API OpenGLAppComponent : public Component,
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private OpenGLRenderer
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{
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public:
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OpenGLAppComponent();
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/** Destructor. */
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~OpenGLAppComponent();
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/** Returns the number of times that the render method has been called since
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the component started running.
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*/
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int getFrameCounter() const noexcept { return frameCounter; }
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/** This must be called from your subclass's destructor, to shut down
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the GL system and stop it calling render() before your class is destroyed.
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*/
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void shutdownOpenGL();
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/** Implement this method to set up any GL objects that you need for rendering.
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The GL context will be active when this method is called.
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*/
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virtual void initialise() = 0;
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/** Implement this method to free any GL objects that you created during rendering.
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The GL context will still be active when this method is called.
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*/
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virtual void shutdown() = 0;
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/** Called to render your openGL.
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@see OpenGLRenderer::render()
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*/
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virtual void render() = 0;
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/** The GL context */
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OpenGLContext openGLContext;
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private:
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//==============================================================================
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int frameCounter = 0;
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void newOpenGLContextCreated() override;
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void renderOpenGL() override;
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void openGLContextClosing() override;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (OpenGLAppComponent)
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};
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