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JUCE/examples/Demo/Source/Demos/AudioSettingsDemo.cpp
2015-07-22 15:59:34 +01:00

131 lines
4.9 KiB
C++

/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2015 - ROLI Ltd.
Permission is granted to use this software under the terms of either:
a) the GPL v2 (or any later version)
b) the Affero GPL v3
Details of these licenses can be found 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.juce.com for more information.
==============================================================================
*/
#include "../JuceDemoHeader.h"
//==============================================================================
class AudioSettingsDemo : public Component,
public ChangeListener
{
public:
AudioSettingsDemo()
{
setOpaque (true);
addAndMakeVisible (audioSetupComp
= new AudioDeviceSelectorComponent (MainAppWindow::getSharedAudioDeviceManager(),
0, 256, 0, 256, true, true, true, false));
addAndMakeVisible (diagnosticsBox);
diagnosticsBox.setMultiLine (true);
diagnosticsBox.setReturnKeyStartsNewLine (true);
diagnosticsBox.setReadOnly (true);
diagnosticsBox.setScrollbarsShown (true);
diagnosticsBox.setCaretVisible (false);
diagnosticsBox.setPopupMenuEnabled (true);
diagnosticsBox.setColour (TextEditor::backgroundColourId, Colour (0x32ffffff));
diagnosticsBox.setColour (TextEditor::outlineColourId, Colour (0x1c000000));
diagnosticsBox.setColour (TextEditor::shadowColourId, Colour (0x16000000));
MainAppWindow::getSharedAudioDeviceManager().addChangeListener (this);
logMessage ("Audio device diagnostics:\n");
dumpDeviceInfo();
}
~AudioSettingsDemo()
{
MainAppWindow::getSharedAudioDeviceManager().removeChangeListener (this);
}
void paint (Graphics& g) override
{
fillTiledBackground (g);
}
void resized() override
{
Rectangle<int> r (getLocalBounds().reduced (4));
audioSetupComp->setBounds (r.removeFromTop (proportionOfHeight (0.65f)));
diagnosticsBox.setBounds (r);
}
void dumpDeviceInfo()
{
AudioDeviceManager& dm = MainAppWindow::getSharedAudioDeviceManager();
logMessage ("--------------------------------------");
logMessage ("Current audio device type: " + (dm.getCurrentDeviceTypeObject() != nullptr
? dm.getCurrentDeviceTypeObject()->getTypeName()
: "<none>"));
if (AudioIODevice* device = dm.getCurrentAudioDevice())
{
logMessage ("Current audio device: " + device->getName().quoted());
logMessage ("Sample rate: " + String (device->getCurrentSampleRate()) + " Hz");
logMessage ("Block size: " + String (device->getCurrentBufferSizeSamples()) + " samples");
logMessage ("Bit depth: " + String (device->getCurrentBitDepth()));
logMessage ("Input channel names: " + device->getInputChannelNames().joinIntoString (", "));
logMessage ("Active input channels: " + getListOfActiveBits (device->getActiveInputChannels()));
logMessage ("Output channel names: " + device->getOutputChannelNames().joinIntoString (", "));
logMessage ("Active output channels: " + getListOfActiveBits (device->getActiveOutputChannels()));
}
else
{
logMessage ("No audio device open");
}
}
void logMessage (const String& m)
{
diagnosticsBox.moveCaretToEnd();
diagnosticsBox.insertTextAtCaret (m + newLine);
}
private:
ScopedPointer<AudioDeviceSelectorComponent> audioSetupComp;
TextEditor diagnosticsBox;
void changeListenerCallback (ChangeBroadcaster*) override
{
dumpDeviceInfo();
}
static String getListOfActiveBits (const BitArray& b)
{
StringArray bits;
for (int i = 0; i <= b.getHighestBit(); ++i)
if (b[i])
bits.add (String (i));
return bits.joinIntoString (", ");
}
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioSettingsDemo);
};
// This static object will register this demo type in a global list of demos..
static JuceDemoType<AudioSettingsDemo> demo ("30 Audio: Settings");