diff widgets/ColourMapComboBox.cpp @ 1216:dc2af6616c83

Merge from branch 3.0-integration

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widgets/ColourMapComboBox.cpp	Fri Jan 13 10:29:50 2017 +0000
@@ -0,0 +1,74 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    This file copyright 2007-2016 QMUL.
+    
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#include "ColourMapComboBox.h"
+
+#include "layer/ColourMapper.h"
+
+#include "base/Debug.h"
+
+#include <QFontMetrics>
+
+#include <iostream>
+
+using namespace std;
+
+ColourMapComboBox::ColourMapComboBox(bool includeSwatches, QWidget *parent) :
+    NotifyingComboBox(parent),
+    m_includeSwatches(includeSwatches)
+{
+    setEditable(false);
+    rebuild();
+
+    connect(this, SIGNAL(activated(int)), this, SLOT(comboActivated(int)));
+
+    if (count() < 20 && count() > maxVisibleItems()) {
+	setMaxVisibleItems(count());
+    }
+}
+
+void
+ColourMapComboBox::comboActivated(int index)
+{
+    emit colourMapChanged(index);
+}
+
+void
+ColourMapComboBox::rebuild()
+{
+    blockSignals(true);
+
+    int ix = currentIndex();
+    
+    clear();
+
+    int size = (QFontMetrics(QFont()).height() * 2) / 3;
+    if (size < 12) size = 12;
+
+    for (int i = 0; i < ColourMapper::getColourMapCount(); ++i) {
+        QString name = ColourMapper::getColourMapName(i);
+        if (m_includeSwatches) {
+            ColourMapper mapper(i, 0.0, 1.0);
+            addItem(mapper.getExamplePixmap(QSize(size * 2, size)), name);
+        } else {
+            addItem(name);
+        }
+    }
+
+    setCurrentIndex(ix);
+    
+    blockSignals(false);
+}
+