comparison base/ColourDatabase.h @ 277:3b8008d09541

* Add a colour database, and Add New Colour function to the colour combo
  in property box.  The colour property is only correctly handled in the
  waveform layer so far.

* Add en_GB translation, to translate those annoying Color texts in the
  Qt colour picker dialog.

+/* -*- 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 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.
+*/
+
+#ifndef _COLOUR_DATABASE_H_
+#define _COLOUR_DATABASE_H_
+
+#include <QObject>
+#include <QString>
+#include <QColor>
+#include <vector>
+
+class ColourDatabase : public QObject
+{
+    Q_OBJECT
+
+public:
+    static ColourDatabase *getInstance();
+
+    int getColourCount() const;
+    QString getColourName(int c) const;
+    QColor getColour(int c) const;
+    QColor getColour(QString name) const;
+    int getColourIndex(QString name) const; // -1 -> not found
+    int getColourIndex(QColor c) const; // returns first index of possibly many
+    bool haveColour(QColor c) const;
+
+    bool useDarkBackground(int c) const;
+    void setUseDarkBackground(int c, bool dark);
+
+    int addColour(QColor, QString); // returns index
+    void removeColour(QString);
+
+    // returned colour is not necessarily in database
+    QColor getContrastingColour(int c) const;
+
+    // for use in XML export
+    void getStringValues(int index,
+                         QString &colourName,
+                         QString &colourSpec,
+                         QString &darkbg) const;
+
+    // for use in XML import
+    int putStringValues(QString colourName,
+                        QString colourSpec,
+                        QString darkbg);
+
+    // for use by PropertyContainer getPropertyRangeAndValue methods
+    void getColourPropertyRange(int *min, int *max) const;
+    
+signals:
+    void colourDatabaseChanged();
+
+protected:
+    ColourDatabase();
+
+    struct ColourRec {
+        QColor colour;
+        QString name;
+        bool darkbg;
+    };
+    
+    typedef std::vector<ColourRec> ColourList;
+    ColourList m_colours;
+
+    static ColourDatabase m_instance;
+};
+
+#endif