lmms/include/MainWindow.h

/*
 * MainWindow.h - declaration of class MainWindow
 *
 * Copyright (c) 2004-2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
 *
 * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program (see COPYING); if not, write to the
 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301 USA.
 *
 */

#ifndef _MAIN_WINDOW_H
#define _MAIN_WINDOW_H

#include <QtCore/QBasicTimer>
#include <QtCore/QList>
#include <QtGui/QMainWindow>
#include <QtGui/QWhatsThis>

class QAction;
class QDomElement;
class QGridLayout;
class QHBoxLayout;
class QMdiArea;
class QCheckBox;
class QRadioButton;

class ResourceBrowser;
class lcdSpinBox;
class MeterDialog;
class automatableSlider;
class textFloat;

class configManager;
class PluginView;
class toolButton;

enum ProjectPlaybackMode
{
	PPM_Song = 0,
	PPM_BB = 1,
	PPM_PianoRoll
};

class MainWindow : public QMainWindow
{
	Q_OBJECT
public:
	inline QMdiArea * workspace()
	{
		return m_workspace;
	}

	inline QWidget * toolBar()
	{
		return m_toolBar;
	}


	//int addWidgetToToolBar( QWidget * _w, int _row = -1, int _col = -1 );
	//void addSpacingToToolBar( int _size );


	// every function that replaces current file (e.g. creates new file,
	// opens another file...) has to call this before and may only process
	// if this function returns true
	bool mayChangeProject();


	void clearKeyModifiers();

	inline bool isCtrlPressed()
	{
		return m_keyMods.m_ctrl;
	}

	inline bool isShiftPressed()
	{
		return m_keyMods.m_shift;
	}

	inline bool isAltPressed()
	{
		return m_keyMods.m_alt;
	}

	static void saveWidgetState( QWidget * _w, QDomElement & _de );
	static void restoreWidgetState( QWidget * _w, const QDomElement & _de );

	inline ProjectPlaybackMode playbackMode() const
	{
		return m_playbackMode;
	}

	void setPlaybackMode( ProjectPlaybackMode _playbackMode );

    void showWelcomeScreen(bool _visible = true);

public slots:
	void resetWindowTitle();

	inline void emptySlot()
	{
	}
	inline void enterWhatsThisMode()
	{
		QWhatsThis::enterWhatsThisMode();
	}
	void createNewProject();
	void createNewProjectFromTemplate( QAction * _idx );
	void openProject();
	bool saveProject();
	bool saveProjectAs();
	void showSettingsDialog();
	void showPreferencesDialog();
	void aboutLMMS();
	void help();
	void toggleAutomationEditorWin();
	void toggleBBEditorWin();
	void toggleSongEditorWin();
	void toggleProjectNotesWin();
	void toggleFxMixerWin();
	void togglePianoRollWin();
	void toggleControllerRack();

	void undo();
	void redo();

	void loadResource();

	void toggleRecordAutomation( bool );

protected:
	virtual void closeEvent( QCloseEvent * _ce );
	virtual void showEvent( QShowEvent * _se );
	virtual void focusOutEvent( QFocusEvent * _fe );
	virtual void keyPressEvent( QKeyEvent * _ke );
	virtual void keyReleaseEvent( QKeyEvent * _ke );
	virtual void timerEvent( QTimerEvent * _ev );


private:
	MainWindow();
	MainWindow( const MainWindow & );
	virtual ~MainWindow();

	void finalize();

	void toggleWindow( QWidget * _w );


	QWidget * m_mainWidget;
	QWidget * m_welcomeScreen;

	QMdiArea * m_workspace;

	QWidget * m_toolBar;
	QHBoxLayout * m_toolBarLayout;
	QCheckBox * m_chkrAudio;
	QCheckBox * m_chkrAutomation;
	QCheckBox * m_chkrMidi;
	QRadioButton * m_radpSong;
	QRadioButton * m_radpBB;
	QRadioButton * m_radpPianoRoll;

	ProjectPlaybackMode m_playbackMode;

	lcdSpinBox * m_tempoSpinBox;
	MeterDialog * m_timeSigDisplay;

	automatableSlider * m_masterVolumeSlider;
	automatableSlider * m_masterPitchSlider;

	textFloat * m_mvsStatus;
	textFloat * m_mpsStatus;

	QMenu * m_templatesMenu;
	QMenu * m_recentlyOpenedProjectsMenu;
	int m_custom_templates_count;

	struct keyModifiers
	{
		keyModifiers() :
			m_ctrl( false ),
			m_shift( false ),
			m_alt( false )
		{
		}
		bool m_ctrl;
		bool m_shift;
		bool m_alt;
	} m_keyMods;

	QMenu * m_toolsMenu;
	QList<PluginView *> m_tools;

	QBasicTimer m_updateTimer;

	ResourceBrowser * m_resourceBrowser;

	friend class engine;


private slots:
	void setHighQuality( bool );

	void masterVolumeChanged( int _new_val );
	void masterVolumePressed();
	void masterVolumeMoved( int _new_val );
	void masterVolumeReleased();
	void masterPitchChanged( int _new_val );
	void masterPitchPressed();
	void masterPitchMoved( int _new_val );
	void masterPitchReleased();

	void browseHelp();
	void fillTemplatesMenu();
	void openRecentlyOpenedProject( QAction * _action );
	void showTool( QAction * _idx );
	void updateRecentlyOpenedProjectsMenu();

	void playbackSongClicked( bool );
	void playbackBBClicked( bool );
	void playbackPianoRollClicked( bool );

	void shortcutSpacePressed();
	void shortcutLPressed();

	void play();
	void record();
	void playAndRecord();
	void stop();

signals:
	void periodicUpdate();

} ;

#endif