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83 lines
2.9 KiB
C
83 lines
2.9 KiB
C
/*
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==============================================================================
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This file is part of the JUCE library - "Jules' Utility Class Extensions"
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Copyright 2004-11 by Raw Material Software Ltd.
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------------------------------------------------------------------------------
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JUCE can be redistributed and/or modified under the terms of the GNU General
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Public License (Version 2), as published by the Free Software Foundation.
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A copy of the license is included in the JUCE distribution, or can be found
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online 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.rawmaterialsoftware.com/juce for more information.
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==============================================================================
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*/
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#ifndef DEMOUTILITIES_H_INCLUDED
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#define DEMOUTILITIES_H_INCLUDED
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//==============================================================================
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/*
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This file contains a bunch of miscellaneous utilities that are
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used by the various demos.
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*/
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//==============================================================================
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inline Colour getRandomColour (float brightness)
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{
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return Colour::fromHSV (Random::getSystemRandom().nextFloat(), 0.5f, brightness, 1.0f);
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}
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inline Colour getRandomBrightColour() { return getRandomColour (0.8f); }
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inline Colour getRandomDarkColour() { return getRandomColour (0.3f); }
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inline void fillTiledBackground (Graphics& g)
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{
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g.setFillType (FillType (ImageCache::getFromMemory (BinaryData::tile_background_png,
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BinaryData::tile_background_pngSize),
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AffineTransform::identity));
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//g.setColour (Colour::greyLevel (0.2f));
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g.fillAll();
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}
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//==============================================================================
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// This is basically a sawtooth wave generator - maps a value that bounces between
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// 0.0 and 1.0 at a random speed
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struct BouncingNumber
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{
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BouncingNumber()
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: speed (0.0004 + 0.0007 * Random::getSystemRandom().nextDouble()),
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phase (Random::getSystemRandom().nextDouble())
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{
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}
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float getValue() const
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{
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double v = fmod (phase + speed * Time::getMillisecondCounterHiRes(), 2.0);
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return (float) (v >= 1.0 ? (2.0 - v) : v);
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}
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protected:
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double speed, phase;
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};
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struct SlowerBouncingNumber : public BouncingNumber
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{
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SlowerBouncingNumber()
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{
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speed *= 0.3;
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}
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};
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#endif // DEMOUTILITIES_H_INCLUDED
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