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//=========================================================
// MusE
// Linux Music Editor
// $Id: scrollscale.h,v 1.2.2.3 2009/11/04 17:43:26 lunar_shuttle Exp $
// (C) Copyright 1999 Werner Schweer (ws@seh.de)
//
// 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; 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; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
//=========================================================
#ifndef __SCROLLSCALE_H__
#define __SCROLLSCALE_H__
#include <QSlider>
class QBoxLayout;
class QLabel;
class QResizeEvent;
class QScrollBar;
class QToolButton;
namespace MusEGui {
//---------------------------------------------------------
// ScrollScale
//---------------------------------------------------------
class ScrollScale : public QWidget {
Q_OBJECT
QSlider* scale;
QScrollBar* scroll;
int minVal, maxVal;
int scaleVal, scaleMin, scaleMax;
bool showMagFlag;
QBoxLayout* box;
bool noScale;
bool pageButtons;
int _page;
int _pages;
QToolButton* up;
QToolButton* down;
QLabel* pageNo;
bool invers;
double logbase;
virtual void resizeEvent(QResizeEvent*);
private slots:
void pageUp();
void pageDown();
public slots:
void setPos(unsigned);
void setPosNoLimit(unsigned);
void setMag(int val, int pos_offset = 0);
void setOffset(int val);
void setScale(int val, int pos_offset = 0);
signals:
void scaleChanged(int);
void scrollChanged(int);
void newPage(int);
public:
ScrollScale(int, int, int, int max, Qt::Orientation,
QWidget*, int min = 0, bool i=false, double vv = 10.0);
int xmag() const { return scale->value(); }
void setXmag(int val) { scale->setValue(val); }
void setRange(int, int);
void showMag(bool);
void setNoScale(bool flag) { noScale = flag; }
void setPageButtons(bool flag);
void setPage(int n) { _page = n; }
int page() const { return _page; }
int pages() const { return _pages; }
void setPages(int n);
int pos() const;
int mag() const;
int getScaleValue() const { return scaleVal; }
void range(int* b, int* e) const { *b = minVal; *e = maxVal; }
int offset();
int pos2offset(int pos);
static int getQuickZoomLevel(int mag);
static int convertQuickZoomLevelToMag(int zoomlvl);
const static int zoomLevels = 38;
};
} // namespace MusEGui
#endif
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