Chris@127: 
Chris@127: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@127: 
Chris@127: /*
Chris@127:     Sonic Visualiser
Chris@127:     An audio file viewer and annotation editor.
Chris@127:     Centre for Digital Music, Queen Mary, University of London.
Chris@182:     This file copyright 2006 Chris Cannam and QMUL.
Chris@127:     
Chris@127:     This program is free software; you can redistribute it and/or
Chris@127:     modify it under the terms of the GNU General Public License as
Chris@127:     published by the Free Software Foundation; either version 2 of the
Chris@127:     License, or (at your option) any later version.  See the file
Chris@127:     COPYING included with this distribution for more information.
Chris@127: */
Chris@127: 
Chris@127: #ifndef _PANE_H_
Chris@127: #define _PANE_H_
Chris@127: 
Chris@127: #include <QFrame>
Chris@127: #include <QPoint>
Chris@127: 
Chris@127: #include "base/ZoomConstraint.h"
Chris@128: #include "View.h"
Chris@127: #include "base/Selection.h"
Chris@127: 
Chris@127: class QWidget;
Chris@127: class QPaintEvent;
Chris@127: class Layer;
Chris@133: class Thumbwheel;
Chris@172: class Panner;
Chris@127: 
Chris@127: class Pane : public View
Chris@127: {
Chris@127:     Q_OBJECT
Chris@127: 
Chris@127: public:
Chris@127:     Pane(QWidget *parent = 0);
Chris@127:     virtual QString getPropertyContainerIconName() const { return "pane"; }
Chris@127: 
Chris@127:     virtual bool shouldIlluminateLocalFeatures(const Layer *layer,
Chris@127: 					       QPoint &pos) const;
Chris@127:     virtual bool shouldIlluminateLocalSelection(QPoint &pos,
Chris@127: 						bool &closeToLeft,
Chris@127: 						bool &closeToRight) const;
Chris@127: 
Chris@127:     void setCentreLineVisible(bool visible);
Chris@127:     bool getCentreLineVisible() const { return m_centreLineVisible; }
Chris@127: 
Chris@127:     virtual QString toXmlString(QString indent = "",
Chris@127: 				QString extraAttributes = "") const;
Chris@127: 
Chris@127: signals:
Chris@127:     void paneInteractedWith();
Chris@127:     void rightButtonMenuRequested(QPoint position);
Chris@127: 
Chris@127: public slots:
Chris@127:     virtual void toolModeChanged();
Chris@133:     virtual void zoomWheelsEnabledChanged();
Chris@133:     virtual void zoomLevelChanged();
Chris@127: 
Chris@132:     virtual void horizontalThumbwheelMoved(int value);
Chris@132:     virtual void verticalThumbwheelMoved(int value);
Chris@133:     virtual void verticalZoomChanged();
Chris@174:     virtual void verticalPannerMoved(float x, float y, float w, float h);
Chris@133: 
Chris@133:     virtual void propertyContainerSelected(View *, PropertyContainer *pc);
Chris@132: 
Chris@127: protected:
Chris@127:     virtual void paintEvent(QPaintEvent *e);
Chris@127:     virtual void mousePressEvent(QMouseEvent *e);
Chris@127:     virtual void mouseReleaseEvent(QMouseEvent *e);
Chris@127:     virtual void mouseMoveEvent(QMouseEvent *e);
Chris@127:     virtual void mouseDoubleClickEvent(QMouseEvent *e);
Chris@127:     virtual void leaveEvent(QEvent *e);
Chris@127:     virtual void wheelEvent(QWheelEvent *e);
Chris@133:     virtual void resizeEvent(QResizeEvent *e);
Chris@127: 
Chris@127:     Selection getSelectionAt(int x, bool &closeToLeft, bool &closeToRight) const;
Chris@127: 
Chris@127:     bool editSelectionStart(QMouseEvent *e);
Chris@127:     bool editSelectionDrag(QMouseEvent *e);
Chris@127:     bool editSelectionEnd(QMouseEvent *e);
Chris@127:     bool selectionIsBeingEdited() const;
Chris@127: 
Chris@133:     void updateHeadsUpDisplay();
Chris@174:     void updateVerticalPanner();
Chris@174: 
Chris@174:     bool canTopLayerMoveVertical();
Chris@174:     bool getTopLayerDisplayExtents(float &valueMin, float &valueMax,
Chris@174:                                    float &displayMin, float &displayMax);
Chris@174:     bool setTopLayerDisplayExtents(float displayMin, float displayMax);
Chris@174: 
Chris@174:     void dragTopLayer(QMouseEvent *e);
Chris@174:     void dragExtendSelection(QMouseEvent *e);
Chris@174:     void zoomToRegion(int x0, int y0, int x1, int y1);
Chris@133: 
Chris@127:     bool m_identifyFeatures;
Chris@127:     QPoint m_identifyPoint;
Chris@127:     QPoint m_clickPos;
Chris@127:     QPoint m_mousePos;
Chris@127:     bool m_clickedInRange;
Chris@127:     bool m_shiftPressed;
Chris@127:     bool m_ctrlPressed;
Chris@127:     bool m_navigating;
Chris@127:     bool m_resizing;
Chris@127:     size_t m_dragCentreFrame;
Chris@136:     float m_dragStartMinValue;
Chris@127:     bool m_centreLineVisible;
Chris@127:     size_t m_selectionStartFrame;
Chris@127:     Selection m_editingSelection;
Chris@127:     int m_editingSelectionEdge;
Chris@133: 
Chris@150:     enum DragMode {
Chris@150:         UnresolvedDrag,
Chris@150:         VerticalDrag,
Chris@150:         HorizontalDrag,
Chris@150:         FreeDrag
Chris@150:     };
Chris@150:     DragMode m_dragMode;
Chris@150: 
Chris@133:     QWidget *m_headsUpDisplay;
Chris@172:     Panner *m_vpan;
Chris@133:     Thumbwheel *m_hthumb;
Chris@133:     Thumbwheel *m_vthumb;
Chris@127: };
Chris@127: 
Chris@127: #endif
Chris@127: