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132 lines
3.6 KiB
132 lines
3.6 KiB
/*
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Rosegarden
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A MIDI and audio sequencer and musical notation editor.
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This program is Copyright 2000-2008
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Guillaume Laurent <glaurent@telegraph-road.org>,
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Chris Cannam <cannam@all-day-breakfast.com>,
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Richard Bown <richard.bown@ferventsoftware.com>
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The moral rights of Guillaume Laurent, Chris Cannam, and Richard
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Bown to claim authorship of this work have been asserted.
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Other copyrights also apply to some parts of this work. Please
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see the AUTHORS file and individual file headers for details.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*/
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#ifndef _RG_PIANOKEYBOARD_H_
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#define _RG_PIANOKEYBOARD_H_
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#include "gui/rulers/PitchRuler.h"
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#include <tqsize.h>
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#include <vector>
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class TQWidget;
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class TQPaintEvent;
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class TQMouseEvent;
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class TQEvent;
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namespace Rosegarden
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{
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class PianoKeyboard : public PitchRuler
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{
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TQ_OBJECT
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public:
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PianoKeyboard(TQWidget *parent, int keys = 88);
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virtual TQSize sizeHint() const;
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virtual TQSize minimumSizeHint() const;
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/*
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* We want to be able to call this from the matrix view
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*/
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void drawHoverNote(int evPitch);
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signals:
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/**
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* A key has been clicked on the keyboard.
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*
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* The repeating flag is there to tell the MatrixView not to send
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* the same note again as we're in the middle of a swoosh.
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* MatrixView does the y -> Note calculation.
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*/
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void keyPressed(unsigned int y, bool repeating);
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/**
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* A key has been clicked with the selection modifier pressed.
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* The MatrixView will probably interpret this as meaning to
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* select all notes of that pitch.
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*
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* The repeating flag is there to tell the MatrixView not to
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* clear the selection as we're in the middle of a swoosh.
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* MatrixView does the y -> Note calculation.
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*/
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void keySelected(unsigned int y, bool repeating);
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/**
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* A key has been released on the keyboard.
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*
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* The repeating flag is there to tell the MatrixView not to send
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* the same note again as we're in the middle of a swoosh.
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* MatrixView does the y -> Note calculation.
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*/
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void keyReleased(unsigned int y, bool repeating);
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/**
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* Emitted when the mouse cursor moves to a different key when
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* not clicking or selecting.
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* MatrixView does the y -> Note calculation.
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*/
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void hoveredOverKeyChanged(unsigned int y);
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protected:
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virtual void paintEvent(TQPaintEvent*);
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virtual void mouseMoveEvent(TQMouseEvent*);
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virtual void mousePressEvent(TQMouseEvent*);
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virtual void mouseReleaseEvent(TQMouseEvent*);
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virtual void enterEvent(TQEvent *);
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virtual void leaveEvent(TQEvent *);
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// compute all key positions and store them
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//
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void computeKeyPos();
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//--------------- Data members ---------------------------------
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TQSize m_keySize;
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TQSize m_blackKeySize;
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unsigned int m_nbKeys;
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std::vector<unsigned int> m_whiteKeyPos;
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std::vector<unsigned int> m_blackKeyPos;
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std::vector<unsigned int> m_labelKeyPos;
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std::vector<unsigned int> m_allKeyPos;
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bool m_mouseDown;
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bool m_selecting;
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// highlight element on the keyboard
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TQWidget *m_hoverHighlight;
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int m_lastHoverHighlight;
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int m_lastKeyPressed;
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};
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}
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#endif
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