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AudioDeviceManager: Send changeNotification when MIDI devices change

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This patch also updates the MidiDemo to automatically refresh the device
lists when the set of available devices changes.
This commit is contained in:
reuk 2023-01-16 15:27:38 +00:00
parent 49a954d473
commit 26a872ba9f
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GPG key ID: 9ADCD339CFC98A11
12 changed files with 1237 additions and 509 deletions
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48
examples/Audio/MidiDemo.h
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@ -52,19 +52,27 @@
//==============================================================================
struct MidiDeviceListEntry : ReferenceCountedObject
{
MidiDeviceListEntry (MidiDeviceInfo info) : deviceInfo (info) {}
explicit MidiDeviceListEntry (MidiDeviceInfo info) : deviceInfo (info) {}
MidiDeviceInfo deviceInfo;
std::unique_ptr<MidiInput> inDevice;
std::unique_ptr<MidiOutput> outDevice;
using Ptr = ReferenceCountedObjectPtr<MidiDeviceListEntry>;
void stopAndReset()
{
if (inDevice != nullptr)
inDevice->stop();
inDevice .reset();
outDevice.reset();
}
};
//==============================================================================
class MidiDemo : public Component,
private Timer,
private MidiKeyboardState::Listener,
private MidiInputCallback,
private AsyncUpdater
@ -113,12 +121,11 @@ public:
setSize (732, 520);
startTimer (500);
updateDeviceLists();
}
~MidiDemo() override
{
stopTimer();
midiInputs .clear();
midiOutputs.clear();
keyboardState.removeListener (this);
@ -128,12 +135,6 @@ public:
}
//==============================================================================
void timerCallback() override
{
updateDeviceList (true);
updateDeviceList (false);
}
void handleNoteOn (MidiKeyboardState*, int midiChannel, int midiNoteNumber, float velocity) override
{
MidiMessage m (MidiMessage::noteOn (midiChannel, midiNoteNumber, velocity));
@ -211,17 +212,8 @@ public:
void closeDevice (bool isInput, int index)
{
if (isInput)
{
jassert (midiInputs[index]->inDevice.get() != nullptr);
midiInputs[index]->inDevice->stop();
midiInputs[index]->inDevice.reset();
}
else
{
jassert (midiOutputs[index]->outDevice.get() != nullptr);
midiOutputs[index]->outDevice.reset();
}
auto& list = isInput ? midiInputs : midiOutputs;
list[index]->stopAndReset();
}
int getNumMidiInputs() const noexcept
@ -423,7 +415,6 @@ private:
if (hasDeviceListChanged (availableDevices, isInputDeviceList))
{
ReferenceCountedArray<MidiDeviceListEntry>& midiDevices
= isInputDeviceList ? midiInputs : midiOutputs;
@ -463,6 +454,12 @@ private:
addAndMakeVisible (label);
}
void updateDeviceLists()
{
for (const auto isInput : { true, false })
updateDeviceList (isInput);
}
//==============================================================================
Label midiInputLabel { "Midi Input Label", "MIDI Input:" };
Label midiOutputLabel { "Midi Output Label", "MIDI Output:" };
@ -473,12 +470,17 @@ private:
TextEditor midiMonitor { "MIDI Monitor" };
TextButton pairButton { "MIDI Bluetooth devices..." };
std::unique_ptr<MidiDeviceListBox> midiInputSelector, midiOutputSelector;
ReferenceCountedArray<MidiDeviceListEntry> midiInputs, midiOutputs;
std::unique_ptr<MidiDeviceListBox> midiInputSelector, midiOutputSelector;
CriticalSection midiMonitorLock;
Array<MidiMessage> incomingMessages;
MidiDeviceListConnection connection = MidiDeviceListConnection::make ([this]
{
updateDeviceLists();
});
//==============================================================================
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (MidiDemo)
};