kig_view.h

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#ifndef KIG_VIEW_H
#define KIG_VIEW_H

#include <qwidget.h>
#include <qpixmap.h>

#include <kparts/part.h>

#include <vector>

#include "../objects/object_holder.h"
#include "../misc/rect.h"
#include "../misc/screeninfo.h"

class QGridLayout;
class QScrollBar;

class KigDocument;
class KigView;

class KigWidget : public QWidget
{
  Q_OBJECT

  KigPart* mpart;
  KigView* mview;

  // we reimplement these from QWidget to suit our needs
  void mousePressEvent( QMouseEvent* e );
  void mouseMoveEvent( QMouseEvent* e );
  void mouseReleaseEvent( QMouseEvent* e );
  void paintEvent( QPaintEvent* e );
  void wheelEvent( QWheelEvent* e );
  void resizeEvent( QResizeEvent* );
  QSize sizeHint() const;

  Rect matchScreenShape( const Rect& r ) const;

public:
  QPixmap stillPix;
  QPixmap curPix;

protected:
  std::vector<QRect> oldOverlay;

  ScreenInfo msi;

  bool misfullscreen;

  bool mispainting;

  bool malreadyresized;

public:
  KigWidget( KigPart* doc,
             KigView* view,
             QWidget* parent = 0,
             bool fullscreen = false
       );
  ~KigWidget();

  bool isFullScreen() const;
  void setFullScreen( bool f );

  const KigView* view() const {
    return mview;
  }

  KigView* view() {
    return mview;
  }

  void clearStillPix();
  void updateCurPix( const std::vector<QRect>& = std::vector<QRect>());

  void updateWidget( const std::vector<QRect>& = std::vector<QRect>() );
  void updateEntireWidget();

  const Rect showingRect() const;
  void setShowingRect( const Rect& r );

  const Coordinate fromScreen( const QPoint& p );
  const Rect fromScreen( const QRect& r );
  double pixelWidth() const;

  const ScreenInfo& screenInfo() const;

  Rect entireDocumentRect() const;

  void updateScrollBars();

  void scrollSetBottom( double rhs );
  void scrollSetLeft( double rhs );

  const KigDocument& document() const;

public:
  void recenterScreen();
  void slotRecenterScreen();

  // called when the user clicks the appropriate buttons..
  void slotZoomIn();
  void slotZoomOut();

  void zoomRect();
  void zoomArea();

  void redrawScreen( const std::vector<ObjectHolder*>& selection, bool paintOnWidget = true );
};

class KigView
  : public QWidget
{
  Q_OBJECT

  QGridLayout* mlayout;
  QScrollBar* mrightscroll;
  QScrollBar* mbottomscroll;

  bool mupdatingscrollbars;

  KigWidget* mrealwidget;
  KigPart* mpart;

public:
  explicit KigView( KigPart* part,
                    bool fullscreen = false,
                    QWidget* parent = 0
                  );
  ~KigView();

  void setupActions();

  const ScreenInfo& screenInfo() const;

  KigWidget* realWidget() const;
  void scrollHorizontal( int delta );
  void scrollVertical( int delta );

public slots:
  void updateScrollBars();
  void slotZoomIn();
  void slotZoomOut();
  void zoomRect();
  void zoomArea();
  void slotInternalRecenterScreen();
  void slotRecenterScreen();
  void toggleFullScreen();

private slots:
  void slotRightScrollValueChanged( int );
  void slotBottomScrollValueChanged( int );
};
#endif