diff view/Pane.h @ 0:fc9323a41f5a

start base : Sonic Visualiser sv1-1.0rc1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/view/Pane.h	Fri May 11 09:08:14 2007 +0000
@@ -0,0 +1,147 @@
+
+/* -*- 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 2006 Chris Cannam and 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 _PANE_H_
+#define _PANE_H_
+
+#include <QFrame>
+#include <QPoint>
+
+#include "base/ZoomConstraint.h"
+#include "View.h"
+#include "base/Selection.h"
+
+class QWidget;
+class QPaintEvent;
+class Layer;
+class Thumbwheel;
+class Panner;
+class NotifyingPushButton;
+
+class Pane : public View
+{
+    Q_OBJECT
+
+public:
+    Pane(QWidget *parent = 0);
+    virtual QString getPropertyContainerIconName() const { return "pane"; }
+
+    virtual bool shouldIlluminateLocalFeatures(const Layer *layer,
+					       QPoint &pos) const;
+    virtual bool shouldIlluminateLocalSelection(QPoint &pos,
+						bool &closeToLeft,
+						bool &closeToRight) const;
+
+    void setCentreLineVisible(bool visible);
+    bool getCentreLineVisible() const { return m_centreLineVisible; }
+
+    virtual size_t getFirstVisibleFrame() const;
+
+    virtual QImage *toNewImage(size_t f0, size_t f1);
+    virtual QImage *toNewImage() { return View::toNewImage(); }
+    virtual QSize getImageSize(size_t f0, size_t f1);
+    virtual QSize getImageSize() { return View::getImageSize(); }
+
+    virtual QString toXmlString(QString indent = "",
+				QString extraAttributes = "") const;
+
+signals:
+    void paneInteractedWith();
+    void rightButtonMenuRequested(QPoint position);
+
+public slots:
+    virtual void toolModeChanged();
+    virtual void zoomWheelsEnabledChanged();
+    virtual void viewZoomLevelChanged(View *v, unsigned long z, bool locked);
+
+    virtual void horizontalThumbwheelMoved(int value);
+    virtual void verticalThumbwheelMoved(int value);
+    virtual void verticalZoomChanged();
+    virtual void verticalPannerMoved(float x, float y, float w, float h);
+    virtual void editVerticalPannerExtents();
+
+    virtual void propertyContainerSelected(View *, PropertyContainer *pc);
+
+    void mouseEnteredWidget();
+    void mouseLeftWidget();
+
+protected:
+    virtual void paintEvent(QPaintEvent *e);
+    virtual void mousePressEvent(QMouseEvent *e);
+    virtual void mouseReleaseEvent(QMouseEvent *e);
+    virtual void mouseMoveEvent(QMouseEvent *e);
+    virtual void mouseDoubleClickEvent(QMouseEvent *e);
+    virtual void leaveEvent(QEvent *e);
+    virtual void wheelEvent(QWheelEvent *e);
+    virtual void resizeEvent(QResizeEvent *e);
+
+    virtual bool render(QPainter &paint, int x0, size_t f0, size_t f1);
+
+    Selection getSelectionAt(int x, bool &closeToLeft, bool &closeToRight) const;
+
+    bool editSelectionStart(QMouseEvent *e);
+    bool editSelectionDrag(QMouseEvent *e);
+    bool editSelectionEnd(QMouseEvent *e);
+    bool selectionIsBeingEdited() const;
+
+    void updateHeadsUpDisplay();
+    void updateVerticalPanner();
+
+    bool canTopLayerMoveVertical();
+    bool getTopLayerDisplayExtents(float &valueMin, float &valueMax,
+                                   float &displayMin, float &displayMax,
+                                   QString *unit = 0);
+    bool setTopLayerDisplayExtents(float displayMin, float displayMax);
+
+    void dragTopLayer(QMouseEvent *e);
+    void dragExtendSelection(QMouseEvent *e);
+    void zoomToRegion(int x0, int y0, int x1, int y1);
+    void updateContextHelp(const QPoint *pos);
+
+    bool m_identifyFeatures;
+    QPoint m_identifyPoint;
+    QPoint m_clickPos;
+    QPoint m_mousePos;
+    bool m_clickedInRange;
+    bool m_shiftPressed;
+    bool m_ctrlPressed;
+    bool m_navigating;
+    bool m_resizing;
+    size_t m_dragCentreFrame;
+    float m_dragStartMinValue;
+    bool m_centreLineVisible;
+    size_t m_selectionStartFrame;
+    Selection m_editingSelection;
+    int m_editingSelectionEdge;
+    mutable int m_scaleWidth;
+
+    enum DragMode {
+        UnresolvedDrag,
+        VerticalDrag,
+        HorizontalDrag,
+        FreeDrag
+    };
+    DragMode m_dragMode;
+
+    QWidget *m_headsUpDisplay;
+    Panner *m_vpan;
+    Thumbwheel *m_hthumb;
+    Thumbwheel *m_vthumb;
+    NotifyingPushButton *m_reset;
+};
+
+#endif
+