source: src/mvc/delegate.h @ 979e5be

qt5
Last change on this file since 979e5be was 9f367eb, checked in by pavelpa <pavelpa@…>, 12 years ago

'conflicts' modifications

  • preparing for the dialog showing also list of events in the conflict
  • created 'EVENT_CONFLICT' for flaging events in conflict state
  • TODO: not finished
  • Property mode set to 100644
File size: 3.1 KB
Line 
1#ifndef DELEGATE_H
2#define DELEGATE_H
3
4#include <QItemDelegate>
5#include <QTreeView>
6#include <QPointer>
7
8class Delegate : public QItemDelegate
9{
10    Q_OBJECT
11
12    public:
13
14        enum ControlId
15        {
16            ControlNone = 0,
17            FavouriteControlOn,
18            FavouriteControlOff,
19            AlarmControlOn,
20            AlarmControlOff,
21            MapControl,
22            WarningControl
23        };
24
25        class Control
26        {
27            public:
28                Control(ControlId aControlId, const QString &aImageName)
29                    : mId(aControlId)
30                    , mImage(new QImage(aImageName))
31                    , mDrawPoint(QPoint(0,0))
32                { }
33                inline QImage *image() const { return mImage; }
34                inline void setDrawPoint(const QPoint &aPoint) { mDrawPoint = aPoint; }
35                inline QPoint drawPoint(const QRect &aRect = QRect()) const // for painter to draw Control
36                {
37                    if(aRect == QRect()) // null rectangle
38                        return mDrawPoint; // returns relative drawing point
39                    else
40                        return QPoint(aRect.x()+aRect.width(),aRect.y()) + mDrawPoint; // returns absolute drawing point
41                }
42                inline QRect drawRect(const QRect &aRect) const // helper for determining if Control was clicked
43                {
44                    return QRect(drawPoint(aRect), drawPoint(aRect)+QPoint(mImage->size().width(),mImage->size().height()));
45                }
46            private:
47                ControlId mId;
48                QImage *mImage;
49                QPoint mDrawPoint; // relative 'start-drawing' position (may hold negative values)
50        };
51
52        Delegate(QTreeView *aParent); // the delegate 'owner' has to be specified in the constructor - it's used to obtain visualRect of selected item/index
53        ~Delegate();
54
55        void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;
56        QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const;
57        //
58        Delegate::ControlId whichControlClicked(const QModelIndex &aIndex, const QPoint &aPoint) const;
59        bool isPointFromRect(const QPoint &aPoint, const QRect &aRect) const;
60
61    private:
62        bool hasParent( const QModelIndex &index ) const;
63        bool isLast( const QModelIndex &index ) const;
64        bool isExpanded( const QModelIndex &index ) const;
65        void defineControls();
66        // TODO: the better place for these methods would be 'eventmodel'
67        // they are used in 'paint' method and so it's better to obtain number of
68        // favourities/alarms once when the data has changed and not to call
69        // these methods which iterate over all Events in corresponding group
70        // every time it requires them
71        int numberOfFavourities(const QModelIndex &index) const;
72        int numberOfAlarms(const QModelIndex &index) const;
73
74    private:
75        QPointer<QTreeView> mViewPtr;
76        QMap<ControlId,Control*> mControls;
77};
78
79#endif /* DELEGATE_H */
80
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