mirror of
https://github.com/juce-framework/JUCE.git
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118 lines
4.2 KiB
C++
118 lines
4.2 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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#include "../JuceDemoHeader.h"
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//==============================================================================
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struct LiveConstantDemoComponent : public Component
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{
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LiveConstantDemoComponent() {}
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void paint (Graphics& g)
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{
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g.fillAll (JUCE_LIVE_CONSTANT (Colour (0xffe5e7a7)));
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g.setColour (JUCE_LIVE_CONSTANT (Colours::red.withAlpha (0.2f)));
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int blockWidth = JUCE_LIVE_CONSTANT (0x120);
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int blockHeight = JUCE_LIVE_CONSTANT (200);
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g.fillRect ((getWidth() - blockWidth) / 2, (getHeight() - blockHeight) / 2, blockWidth, blockHeight);
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Colour fontColour = JUCE_LIVE_CONSTANT (Colour (0xff000a55));
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float fontSize = JUCE_LIVE_CONSTANT (30.0f);
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g.setColour (fontColour);
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g.setFont (fontSize);
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g.drawFittedText (getDemoText(), getLocalBounds(), Justification::centred, 2);
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}
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static String getDemoText()
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{
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return JUCE_LIVE_CONSTANT ("Hello world!");
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}
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};
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//==============================================================================
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class LiveConstantEditorDemo : public Component,
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private ButtonListener
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{
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public:
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LiveConstantEditorDemo()
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: startButton ("Begin Demo")
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{
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descriptionLabel.setMinimumHorizontalScale (1.0f);
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descriptionLabel.setText ("This demonstrates the JUCE_LIVE_CONSTANT macro, which allows you to quickly "
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"adjust primitive values at runtime by just wrapping them in a macro.\n\n"
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"To understand what's going on in this demo, you should have a look at the "
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"LiveConstantDemoComponent class in LiveConstantDemo.cpp, where you can see "
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"the code that's invoking the demo below...",
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dontSendNotification);
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addAndMakeVisible (descriptionLabel);
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addAndMakeVisible (startButton);
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addChildComponent (demoComp);
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startButton.addListener (this);
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}
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void paint (Graphics& g) override
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{
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fillStandardDemoBackground (g);
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}
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void resized() override
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{
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Rectangle<int> r (getLocalBounds().reduced (10));
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demoComp.setBounds (r);
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descriptionLabel.setBounds (r.removeFromTop (200));
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startButton.setBounds (r.removeFromTop (22).removeFromLeft (250));
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demoComp.setBounds (r.withTrimmedTop (10));
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}
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private:
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Label descriptionLabel;
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TextButton startButton;
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LiveConstantDemoComponent demoComp;
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void buttonClicked (Button*) override
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{
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startButton.setVisible (false);
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demoComp.setVisible (true);
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descriptionLabel.setText ("Tweak some of the colours and values in the pop-up window to see what "
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"the effect of your changes would be on the component below...",
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dontSendNotification);
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}
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (LiveConstantEditorDemo)
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};
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#if ! (JUCE_IOS || JUCE_ANDROID)
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// This static object will register this demo type in a global list of demos..
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static JuceDemoType<LiveConstantEditorDemo> demo ("10 Components: Live Constants");
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#endif
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