From 575494361b12fb7540d8dfe19c849a12872dfe59 Mon Sep 17 00:00:00 2001
From: Wong Cho Ching <chwong249664@yahoo.com>
Date: Wed, 29 Jan 2014 22:21:49 +0800
Subject: [PATCH] Added sound preview when button is click

---
 plugins/sfxr/sfxr.cpp | 22 ++++++++++++++++++++++
 plugins/sfxr/sfxr.h   |  3 +++
 2 files changed, 25 insertions(+)

diff --git a/plugins/sfxr/sfxr.cpp b/plugins/sfxr/sfxr.cpp
index 66f9b58a1..070be1358 100644
--- a/plugins/sfxr/sfxr.cpp
+++ b/plugins/sfxr/sfxr.cpp
@@ -319,6 +319,7 @@ bool SfxrSynth::isPlaying() const
 
 sfxrInstrument::sfxrInstrument( InstrumentTrack * _instrument_track ) :
 	Instrument( _instrument_track, &sfxr_plugin_descriptor ),
+	m_instrumentTrack(_instrument_track),
 	m_attModel(0.0f, this),
 	m_holdModel(0.3f, this),
 	m_susModel(0.0f, this),
@@ -651,6 +652,17 @@ sfxrInstrumentView::sfxrInstrumentView( Instrument * _instrument,
 	connect( m_mutateBtn, SIGNAL ( clicked() ), this, SLOT ( mutate() ) );
 
 
+	//preview sound on generator/random/mutate button clicked
+	connect( m_pickupBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
+	connect( m_laserBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
+	connect( m_explosionBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
+	connect( m_powerupBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
+	connect( m_hitBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
+	connect( m_jumpBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
+	connect( m_blipBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
+	connect( m_randomizeBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
+	connect( m_mutateBtn, SIGNAL ( clicked() ), this, SLOT ( previewSound() ) );
+
 }
 
 
@@ -1046,6 +1058,16 @@ void sfxrInstrumentView::mutate()
 
 
 
+void sfxrInstrumentView::previewSound()
+{
+	sfxrInstrument * s = castModel<sfxrInstrument>();
+	InstrumentTrack * it = s->m_instrumentTrack;
+	it->processInEvent( midiEvent( MidiNoteOff, 0, it->baseNoteModel()->value(), 0 ), midiTime() );
+	it->processInEvent( midiEvent( MidiNoteOn, 0, it->baseNoteModel()->value(), MidiMaxVelocity ), midiTime() );
+}
+
+
+
 extern "C"
 {
 
diff --git a/plugins/sfxr/sfxr.h b/plugins/sfxr/sfxr.h
index 20250db70..524f67314 100644
--- a/plugins/sfxr/sfxr.h
+++ b/plugins/sfxr/sfxr.h
@@ -184,6 +184,7 @@ public:
 
 
 private:
+	InstrumentTrack * m_instrumentTrack;
 	SfxrZeroToOneFloatModel m_attModel;
 	SfxrZeroToOneFloatModel m_holdModel;
 	SfxrZeroToOneFloatModel m_susModel;
@@ -241,6 +242,8 @@ protected slots:
 	void randomize();
 	void mutate();
 
+	void previewSound();
+
 private:
 	virtual void modelChanged();