Add option to clear all notes in SlicerT (#7850)

plugins/SlicerT/SlicerTView.cpp

@@ -71,6 +71,12 @@ SlicerTView::SlicerTView(SlicerT* instrument, QWidget* parent)
 	m_syncToggle->setToolTip(tr("Enable BPM sync"));
 	m_syncToggle->setModel(&m_slicerTParent->m_enableSync);
 
+	m_clearButton = new PixmapButton(this, tr("Clear all slices"));
+	m_clearButton->setActiveGraphic(PLUGIN_NAME::getIconPixmap("clear_slices_active"));
+	m_clearButton->setInactiveGraphic(PLUGIN_NAME::getIconPixmap("clear_slices_inactive"));
+	m_clearButton->setToolTip(tr("Clear all slices"));
+	connect(m_clearButton, &PixmapButton::clicked, this, &SlicerTView::clearSlices);
+
 	m_bpmBox = new LcdSpinBox(3, "19purple", this);
 	m_bpmBox->setToolTip(tr("Original sample BPM"));
 	m_bpmBox->setModel(&m_slicerTParent->m_originalBPM);
@@ -111,6 +117,19 @@ Knob* SlicerTView::createStyledKnob()
 	return newKnob;
 }
 
+// Clear all notes
+void SlicerTView::clearSlices()
+{
+	m_slicerTParent->m_slicePoints.clear();
+
+	// Points are added to the start (0) and end (1) of the sample,
+	// so the whole sample can still be copied using MIDI.
+	m_slicerTParent->m_slicePoints.emplace_back(0);
+	m_slicerTParent->m_slicePoints.emplace_back(1);
+
+	emit m_slicerTParent->dataChanged();
+}
+
 // copied from piano roll
 void SlicerTView::exportMidi()
 {
@@ -261,7 +280,7 @@ void SlicerTView::resizeEvent(QResizeEvent* re)
 {
 	m_y1 = height() - s_bottomBoxOffset;
 
-	// left box
+	// Left box
 	m_noteThresholdKnob->move(s_x1 - 25, m_y1);
 	m_fadeOutKnob->move(s_x2 - 25, m_y1);
 
@@ -271,8 +290,10 @@ void SlicerTView::resizeEvent(QResizeEvent* re)
 	m_bpmBox->move(s_x5 - 13, m_y1 + 4);
 	m_snapSetting->move(s_x6 - 8, m_y1 + 3);
 
-	// right box
-	m_syncToggle->move((width() - 100), m_y1 + 5);
+	// Right box
+	// For explanation on the choice of constants, look at #7850
+	m_syncToggle->move((width() - 100), m_y1 - 7);
+	m_clearButton->move((width() - 100), m_y1 + 17);
 
 	m_folderButton->move(width() - 20, height() - s_bottomBoxHeight - s_sampleBoxHeight + 1);
 

plugins/SlicerT/SlicerTView.h

@@ -49,6 +49,7 @@ class SlicerTView : public InstrumentView
 public slots:
 	void exportMidi();
 	void openFiles();
+	void clearSlices();
 
 public:
 	SlicerTView(SlicerT* instrument, QWidget* parent);
@@ -87,6 +88,7 @@ private:
 	LcdSpinBox* m_bpmBox;
 	ComboBox* m_snapSetting;
 	PixmapButton* m_syncToggle;
+	PixmapButton* m_clearButton;
 	PixmapButton* m_folderButton;
 
 	QPushButton* m_resetButton;