source: src/mvc/delegate.cpp @ 5842349

qt5
Last change on this file since 5842349 was ffd878f, checked in by pavelpa <pavelpa@…>, 13 years ago

added GrayScale? versions (inactive/OFF) of the icons

  • Property mode set to 100644
File size: 8.6 KB
Line 
1#include "delegate.h"
2#include "eventmodel.h"
3
4#include <QDebug>
5#include <QPainter>
6
7const int RADIUS = 10;
8const int SPACER = RADIUS;
9
10Delegate::Delegate(QTreeView *aParent)
11    : QItemDelegate(aParent)
12    , mViewPtr(aParent)
13{
14    mControls.clear();
15    defineControls();
16}
17
18Delegate::~Delegate()
19{
20    QListIterator<ControlId> i(mControls.keys());
21    while (i.hasNext())
22    {
23        delete mControls[i.next()]->image();
24    }
25}
26
27void Delegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
28{
29    if(!mViewPtr)
30        return;
31
32    painter->save();
33
34    QColor bkgrColor = Qt::cyan;
35    QPen borderPen(bkgrColor.darker());
36    if(hasParent(index))
37    {
38        if(isLast(index))
39        {
40            QLinearGradient lastGradient(option.rect.topLeft(), option.rect.bottomLeft());
41            lastGradient.setColorAt(0.0, Qt::white);
42            lastGradient.setColorAt(0.5, bkgrColor);
43            lastGradient.setColorAt(1.0, Qt::white);
44
45            QPainterPath endPath;
46            endPath.moveTo(option.rect.topLeft());
47            endPath.lineTo(option.rect.bottomLeft()-QPoint(0, RADIUS));
48            endPath.arcTo(option.rect.left(), option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 180, 90);
49            endPath.lineTo(option.rect.bottomRight()-QPoint(RADIUS, 0));
50            endPath.arcTo(option.rect.right()-2*RADIUS, option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 270, 90);
51            endPath.lineTo(option.rect.topRight());
52
53            //painter->setBrush( bkgrColor );
54            painter->setBrush(lastGradient);
55            painter->setPen(borderPen);
56            painter->drawPath(endPath);
57
58            painter->setFont(option.font);
59        }
60        else // middle elements
61        {
62
63            QLinearGradient middleGradient(option.rect.topLeft(), option.rect.bottomLeft());
64            middleGradient.setColorAt(0.0, Qt::white);
65            middleGradient.setColorAt(0.25, bkgrColor);
66            middleGradient.setColorAt(0.5, Qt::white);
67            middleGradient.setColorAt(0.75, bkgrColor);
68            middleGradient.setColorAt(1.0, Qt::white);
69
70            //painter->setBrush( bkgrColor );
71            painter->setBrush(middleGradient);
72            painter->setPen(Qt::NoPen);
73            painter->drawRect(option.rect);
74
75            painter->setPen(borderPen);
76            // vertical lines
77            painter->drawLine(option.rect.topLeft(), option.rect.bottomLeft());
78            painter->drawLine(option.rect.topRight(), option.rect.bottomRight());
79            // horizontal lines
80            painter->drawLine(option.rect.bottomLeft(), option.rect.bottomRight());
81
82            painter->setFont(option.font);
83        }
84
85        // draw Controls
86        if(static_cast<Event*>(index.internalPointer())->isFavourite())
87            painter->drawImage(mControls[FavouriteControlOn]->drawPoint(option.rect),*mControls[FavouriteControlOn]->image());
88        else
89            painter->drawImage(mControls[FavouriteControlOff]->drawPoint(option.rect),*mControls[FavouriteControlOff]->image());
90        painter->drawImage(mControls[AlarmControlOn]->drawPoint(option.rect),*mControls[AlarmControlOn]->image());
91        painter->drawImage(mControls[MapControl]->drawPoint(option.rect),*mControls[MapControl]->image());
92    }
93    else // doesn't have parent - time-groups' elements (top items)
94    {
95        QLinearGradient titleGradient(option.rect.topLeft(), option.rect.topRight());
96        //titleGradient.setColorAt(0.0, Qt::white);
97        titleGradient.setColorAt(0.0, bkgrColor);
98        titleGradient.setColorAt(0.5, Qt::white);
99        titleGradient.setColorAt(1.0, bkgrColor);
100
101        QPainterPath titlePath;
102        if(isExpanded(index))
103        {
104            titlePath.moveTo(option.rect.bottomLeft());
105            titlePath.lineTo(option.rect.topLeft()+QPoint(0, RADIUS));
106            titlePath.arcTo(option.rect.left(), option.rect.top(), 2*RADIUS, 2*RADIUS, 180, -90);
107            titlePath.lineTo(option.rect.topRight()-QPoint(RADIUS, 0));
108            titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.top(), 2*RADIUS, 2*RADIUS, 90, -90);
109            titlePath.lineTo(option.rect.bottomRight());
110            titlePath.closeSubpath();
111        }
112        else
113        {
114            titlePath.lineTo(option.rect.topLeft()+QPoint(0, RADIUS));
115            titlePath.arcTo(option.rect.left(), option.rect.top(), 2*RADIUS, 2*RADIUS, 180, -90);
116            titlePath.lineTo(option.rect.topRight()-QPoint(RADIUS, 0));
117            titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.top(), 2*RADIUS, 2*RADIUS, 90, -90);
118            titlePath.lineTo(option.rect.bottomRight()-QPoint(0, RADIUS));
119            titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 0, -90);
120            titlePath.lineTo(option.rect.bottomLeft()+QPoint(RADIUS, 0));
121            titlePath.arcTo(option.rect.left(), option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 270, -90);     
122            titlePath.closeSubpath();
123        }
124
125        painter->setBrush(titleGradient);
126        painter->setPen(borderPen);
127        painter->drawPath(titlePath);
128
129        QFont font = option.font;
130        font.setBold(true);
131        painter->setFont(font);
132    }
133
134    //// HIGHLIGHTING SELECTED ITEM
135    //if (option.state & QStyle::State_Selected)
136        //painter->fillRect(option.rect, option.palette.highlight());
137
138    // draw title
139    QPointF titlePointF(option.rect.x()+SPACER,option.rect.y()+option.rect.height()-10);
140    QString text;
141    if(index.parent().isValid()) // event
142        text = qVariantValue<QString>(index.data()) + ": " + static_cast<Event*>(index.internalPointer())->title();
143    else // group
144        text = qVariantValue<QString>(index.data());
145    painter->drawText(titlePointF,text);
146
147    painter->restore();
148}
149
150QSize Delegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
151{
152    Q_UNUSED(option)
153
154    if (index.internalId() == 0) // time group
155    {
156        return QSize(30,30);
157    }
158    else // event
159    {
160        return QSize(100,100);
161    }
162}
163
164bool Delegate::hasParent( const QModelIndex &index ) const
165{
166    if( index.parent().isValid() )
167        return true;
168    else
169        return false;
170}
171 
172bool Delegate::isLast( const QModelIndex &index ) const
173{
174    if(!hasParent(index))
175        return false; // what should be returned here?
176
177    if(index.row() >= (index.model()->rowCount(index.parent())-1))
178        return true;
179    else
180        return false;
181}
182
183bool Delegate::isExpanded( const QModelIndex &index ) const
184{
185    if( !mViewPtr )
186        return false;
187    else
188        return mViewPtr->isExpanded( index );
189}
190
191Delegate::ControlId Delegate::whichControlClicked(const QModelIndex &aIndex, const QPoint &aPoint) const
192{
193    if(!hasParent(aIndex)) // time-group item (root item)
194        return ControlNone;
195
196    QListIterator<ControlId> i(mControls.keys());
197    while (i.hasNext())
198    {
199        ControlId id = i.next();
200        if(mControls[id]->drawRect(static_cast<QTreeView*>(parent())->visualRect(aIndex)).contains(aPoint))
201            return id;
202    }
203
204    return ControlNone;
205}
206
207void Delegate::defineControls()
208{
209    Control *control;
210    QPoint p(0,0);
211    // FAVOURITE ICONs
212    // on
213    control = new Control(FavouriteControlOn,QString(":icons/favourite-on.png"));
214    p = QPoint(0,0);
215    p.setX(p.x()-control->image()->width()-SPACER);
216    control->setDrawPoint(p);
217    mControls.insert(FavouriteControlOn,control);
218    // off
219    control = new Control(FavouriteControlOff,QString(":icons/favourite-off.png"));
220    p = QPoint(0,0);
221    p.setX(p.x()-control->image()->width()-SPACER);
222    control->setDrawPoint(p);
223    mControls.insert(FavouriteControlOff,control);
224
225    // ALARM ICONs
226    // on
227    control = new Control(AlarmControlOn,QString(":icons/alarm-off.png"));
228    p = mControls[FavouriteControlOn]->drawPoint();
229    p.setX(p.x()-control->image()->width()-SPACER);
230    control->setDrawPoint(p);
231    mControls.insert(AlarmControlOn,control);
232    // off
233    control = new Control(AlarmControlOff,QString(":icons/alarm-off.png"));
234    p = mControls[FavouriteControlOff]->drawPoint();
235    p.setX(p.x()-control->image()->width()-SPACER);
236    control->setDrawPoint(p);
237    mControls.insert(AlarmControlOff,control);
238
239    // MAP ICON
240    control = new Control(MapControl,QString(":icons/compass.png"));
241    p = mControls[AlarmControlOn]->drawPoint();
242    p.setX(p.x()-control->image()->width()-SPACER);
243    control->setDrawPoint(p);
244    mControls.insert(MapControl,control);
245}
246
247bool Delegate::isPointFromRect(const QPoint &aPoint, const QRect &aRect) const
248{
249    if( (aPoint.x()>=aRect.left() && aPoint.x()<=aRect.right()) && (aPoint.y()>=aRect.top() && aPoint.y()<=aRect.bottom()) )
250        return true;
251
252    return false;
253}
254
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