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Changed case of examples folder name.

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jules 2014-11-04 12:33:17 +00:00
parent 46547bf8d6
commit a626425764
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159
Examples/AudioAppExample/Source/MainComponent.cpp
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@ -1,159 +0,0 @@
/*
==============================================================================
This file was auto-generated!
==============================================================================
*/
#ifndef MAINCOMPONENT_H_INCLUDED
#define MAINCOMPONENT_H_INCLUDED
#include "../JuceLibraryCode/JuceHeader.h"
//==============================================================================
/*
This component lives inside our window, and this is where you should put all
your controls and content.
*/
class MainContentComponent : public AudioAppComponent
{
public:
//==============================================================================
MainContentComponent() : phase (0.0f),
delta (0.0f),
frequency (5000.0f),
amplitude (0.2f),
sampleRate (0.0)
{
setSize (500, 400);
// the the input and output channels (currently Mono in and out)
setAudioChannels (1, 1);
}
~MainContentComponent()
{
shutdownAudio();
}
//=======================================================================
// HANDLE AUDIO
void prepareToPlay (int samplesPerBlockExpected, double newSampleRate) override
{
sampleRate = newSampleRate;
}
/* This is where the audio is created. In this example we
fill the audio buffer with a sine wave whose frequency is
controlled by the mouse Y position and whose volume is
controlled by the mouse X potition.
*/
void getNextAudioBlock (const AudioSourceChannelInfo& bufferToFill)
{
bufferToFill.clearActiveBufferRegion();
// iterate over each sample of the sample buffer
for (int i = bufferToFill.startSample; i < bufferToFill.numSamples + bufferToFill.startSample; ++i)
{
bufferToFill.buffer->getWritePointer (0)[i] = amplitude * sinf (phase);
// increment the phase step for the next sample
phase += delta;
// reset the phase when it reaches 2PI to avoid large numbers
while (phase >= 2.0f * float_Pi) phase -= 2.0f * float_Pi;
}
}
void releaseResources() override
{
// This gets automatically called when audio device paramters change
// or device is restarted.
}
//=======================================================================
// HANDLE DRAWING
void paint (Graphics& g)
{
// fill background
g.fillAll (Colours::black);
// Set the drawing colour to white
g.setColour (Colours::white);
// Draw an ellipse based on the mouse position and audio volume
int radius = amplitude * 200;
g.fillEllipse (mouse.x - radius/2, mouse.y - radius/2, radius, radius);
// draw a representative sinewave
Path wave;
for (int i = 0; i < getWidth(); i++)
{
if (i == 0) wave.startNewSubPath (0, getHeight()/2);
else wave.lineTo (i, getHeight()/2 + amplitude * getHeight() * 2.0f * sin (i*frequency*0.0001f));
}
g.strokePath (wave, PathStrokeType (2));
}
// Mouse handling
void mouseUp(const MouseEvent& e) override
{
amplitude = 0.0f;
}
void mouseDown (const MouseEvent& e) override
{
mouseDrag (e);
}
void mouseDrag (const MouseEvent& e) override
{
// Update the mouse position variable
mouse.setXY (e.x, e.y);
repaint();
frequency = (getHeight() - e.y) * 10.0f;
amplitude = e.x/float(getWidth()) * 0.2f;
delta = 2.0f * float_Pi * frequency / sampleRate;
}
void resized()
{
// This is called when the MainContentComponent is resized.
// If you add any child components, this is where you should
// update their positions.
}
private:
//==============================================================================
// private member variables
float phase;
float delta;
float frequency;
float amplitude;
double sampleRate;
Point<int> mouse;
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (MainContentComponent)
};
Component* createMainContentComponent() { return new MainContentComponent(); };
#endif // MAINCOMPONENT_H_INCLUDED