source: src/mvc/delegate.cpp @ 699d5b8

qt5
Last change on this file since 699d5b8 was 699d5b8, checked in by fortefr <fortefr@…>, 12 years ago

Time conflict warning

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File size: 16.4 KB
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1#include "delegate.h"
2#include "eventmodel.h"
3#include <track.h>
4
5#include <QDebug>
6#include <QPainter>
7
8const int RADIUS = 10;
9const int SPACER = 10;
10
11const double scaleFactor1 = 0.4;
12const double scaleFactor2 = 0.8;
13
14Delegate::Delegate(QTreeView *aParent)
15    : QItemDelegate(aParent)
16    , mViewPtr(aParent)
17{
18    mControls.clear();
19    defineControls();
20}
21
22Delegate::~Delegate()
23{
24    QListIterator<ControlId> i(mControls.keys());
25    while (i.hasNext())
26    {
27        delete mControls[i.next()]->image();
28    }
29}
30
31void Delegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
32{
33    if(!mViewPtr)
34        return;
35
36    painter->save();
37    QColor bkgrColor = Qt::cyan;
38
39    QPen borderPen(bkgrColor.darker());
40    //QColor bkgrColor = QColor(0,0,113);
41    //QPen borderPen(Qt::cyan);
42    if(hasParent(index))
43    {
44        int aux = option.rect.height() - mControls[FavouriteControlOn]->drawPoint().y() - mControls[FavouriteControlOn]->image()->height();
45        // font SMALL
46        QFont fontSmall = option.font;
47        fontSmall.setBold(false);
48        fontSmall.setPixelSize(aux*0.2);
49        QFontMetrics fmSmall(fontSmall);
50        // font SMALL bold
51        QFont fontSmallB = fontSmall;
52        fontSmallB.setBold(true);
53        QFontMetrics fmSmallB(fontSmallB);
54
55        // font BIG
56        QFont fontBig = option.font;
57        fontBig.setBold(false);
58        fontBig.setPixelSize(aux*0.33);
59        QFontMetrics fmBig(fontBig);
60        // font BIG bold
61        QFont fontBigB = fontBig;
62        fontBigB.setBold(true);
63        QFontMetrics fmBigB(fontBigB);
64
65        //int spacer = (fmSmall.boundingRect("999").width() < SPACER) ? SPACER : fmSmall.boundingRect("999").width();
66
67        //Time conflicts are colored differently
68        if ((static_cast<Event*>(index.internalPointer())->isFavourite())
69            && (hasTimeConflict(index, index.parent())))
70        {
71            bkgrColor = Qt::yellow;
72        }
73
74        if(isLast(index))
75        {
76            QLinearGradient lastGradient(option.rect.topLeft(), option.rect.bottomLeft());
77            lastGradient.setColorAt(0.0, Qt::white);
78            lastGradient.setColorAt(0.5, bkgrColor);
79            lastGradient.setColorAt(1.0, Qt::white);
80
81            QPainterPath endPath;
82            endPath.moveTo(option.rect.topLeft());
83            endPath.lineTo(option.rect.bottomLeft()-QPoint(0, RADIUS));
84            endPath.arcTo(option.rect.left(), option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 180, 90);
85            endPath.lineTo(option.rect.bottomRight()-QPoint(RADIUS, 0));
86            endPath.arcTo(option.rect.right()-2*RADIUS, option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 270, 90);
87            endPath.lineTo(option.rect.topRight());
88
89            painter->setBrush( bkgrColor );
90            //painter->setBrush(lastGradient);
91            painter->setPen(borderPen);
92            painter->drawPath(endPath);
93
94            painter->setFont(option.font);
95        }
96        else // middle elements
97        {
98            QLinearGradient middleGradient(option.rect.topLeft(), option.rect.bottomLeft());
99            middleGradient.setColorAt(0.0, Qt::white);
100            middleGradient.setColorAt(0.25, bkgrColor);
101            middleGradient.setColorAt(0.5, Qt::white);
102            middleGradient.setColorAt(0.75, bkgrColor);
103            middleGradient.setColorAt(1.0, Qt::white);
104
105            painter->setBrush( bkgrColor );
106            //painter->setBrush(middleGradient);
107            painter->setPen(Qt::NoPen);
108            painter->drawRect(option.rect);
109
110            painter->setPen(borderPen);
111            // vertical lines
112            painter->drawLine(option.rect.topLeft(), option.rect.bottomLeft());
113            painter->drawLine(option.rect.topRight(), option.rect.bottomRight());
114            // horizontal lines
115            painter->drawLine(option.rect.bottomLeft(), option.rect.bottomRight());
116
117            painter->setFont(option.font);
118        }
119
120        // draw Controls
121        // favourite
122        if(static_cast<Event*>(index.internalPointer())->isFavourite())
123            painter->drawImage(mControls[FavouriteControlOn]->drawPoint(option.rect),*mControls[FavouriteControlOn]->image());
124        else
125            painter->drawImage(mControls[FavouriteControlOff]->drawPoint(option.rect),*mControls[FavouriteControlOff]->image());
126#ifdef MAEMO
127        // alarm
128        if(static_cast<Event*>(index.internalPointer())->hasAlarm())
129            painter->drawImage(mControls[AlarmControlOn]->drawPoint(option.rect),*mControls[AlarmControlOn]->image());
130        else
131            painter->drawImage(mControls[AlarmControlOff]->drawPoint(option.rect),*mControls[AlarmControlOff]->image());
132#endif
133        // map
134        painter->drawImage(mControls[MapControl]->drawPoint(option.rect),*mControls[MapControl]->image());
135        // Time conflict
136        //if(static_cast<Event*>(index.internalPointer())->hasTimeConflict())
137        if(bkgrColor == Qt::yellow)
138            painter->drawImage(mControls[WarningControlOn]->drawPoint(option.rect),*mControls[WarningControlOn]->image());
139        else
140            painter->drawImage(mControls[WarningControlOff]->drawPoint(option.rect),*mControls[WarningControlOff]->image());
141
142        // draw texts
143        Event *event = static_cast<Event*>(index.internalPointer());
144        QPointF titlePointF(mControls[FavouriteControlOn]->drawPoint(option.rect));
145        titlePointF.setX(option.rect.x()+SPACER);
146        titlePointF.setY(titlePointF.y()+mControls[FavouriteControlOn]->image()->height());
147        QTime start = event->start().time();
148        painter->setFont(fontBig);
149        painter->drawText(titlePointF,start.toString("hh:mm") + "-" + start.addSecs(event->duration()).toString("hh:mm") + ", " + event->room());
150        // title
151        titlePointF.setY(titlePointF.y()+fmBig.height()-fmBig.descent());
152        painter->setFont(fontBigB);
153        QString title = event->title();
154        if(fmBigB.boundingRect(title).width() > (option.rect.width()-2*SPACER)) // the title won't fit the screen
155        {
156            // chop words from the end
157            while( (fmBigB.boundingRect(title + "...").width() > (option.rect.width()-2*SPACER)) && !title.isEmpty())
158            {
159                title.chop(1);
160                // chop characters one-by-one from the end
161                while( (!title.at(title.length()-1).isSpace()) && !title.isEmpty())
162                {
163                    title.chop(1);
164                }
165            }
166            title += "...";
167        }
168        painter->drawText(titlePointF,title);
169        // persons
170        titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent());
171        painter->setFont(fontSmall);
172        painter->drawText(titlePointF,"Presenter(s): " + event->persons().join(" and "));
173        // track
174        titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent());
175        painter->drawText(titlePointF,"Track: " + Track::getTrackName(event->trackId()));
176    }
177    else // doesn't have parent - time-groups' elements (top items)
178    {
179        QFont fontSmall = option.font;
180        fontSmall.setBold(true);
181        fontSmall.setPixelSize(option.rect.height()*scaleFactor1);
182        QFontMetrics fmSmall(fontSmall);
183
184        QFont fontBig = option.font;
185        fontBig.setBold(true);
186        fontBig.setPixelSize(option.rect.height()*scaleFactor2);
187        QFontMetrics fmBig(fontBig);
188
189        int spacer = (fmSmall.boundingRect("999").width() < SPACER) ? SPACER : fmSmall.boundingRect("999").width();
190
191        QLinearGradient titleGradient(option.rect.topLeft(), option.rect.topRight());
192        //titleGradient.setColorAt(0.0, Qt::white);
193        titleGradient.setColorAt(0.0, bkgrColor);
194        titleGradient.setColorAt(0.5, Qt::white);
195        titleGradient.setColorAt(1.0, bkgrColor);
196
197        QPainterPath titlePath;
198        if(isExpanded(index))
199        {
200            titlePath.moveTo(option.rect.bottomLeft());
201            titlePath.lineTo(option.rect.topLeft()+QPoint(0, RADIUS));
202            titlePath.arcTo(option.rect.left(), option.rect.top(), 2*RADIUS, 2*RADIUS, 180, -90);
203            titlePath.lineTo(option.rect.topRight()-QPoint(RADIUS, 0));
204            titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.top(), 2*RADIUS, 2*RADIUS, 90, -90);
205            titlePath.lineTo(option.rect.bottomRight());
206            titlePath.closeSubpath();
207        }
208        else
209        {
210            titlePath.lineTo(option.rect.topLeft()+QPoint(0, RADIUS));
211            titlePath.arcTo(option.rect.left(), option.rect.top(), 2*RADIUS, 2*RADIUS, 180, -90);
212            titlePath.lineTo(option.rect.topRight()-QPoint(RADIUS, 0));
213            titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.top(), 2*RADIUS, 2*RADIUS, 90, -90);
214            titlePath.lineTo(option.rect.bottomRight()-QPoint(0, RADIUS));
215            titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 0, -90);
216            titlePath.lineTo(option.rect.bottomLeft()+QPoint(RADIUS, 0));
217            titlePath.arcTo(option.rect.left(), option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 270, -90);     
218            titlePath.closeSubpath();
219        }
220
221        painter->setBrush(titleGradient);
222        painter->setPen(borderPen);
223        painter->drawPath(titlePath);
224
225        // draw icons
226        painter->setFont(fontSmall);
227        QPoint drawPoint =
228            option.rect.topRight()
229            - QPoint(
230                    spacer + mControls[FavouriteControlOn]->image()->width(),
231                    - option.rect.height()/2 + mControls[FavouriteControlOn]->image()->height()/2);
232        painter->drawImage(drawPoint,*mControls[FavouriteControlOn]->image());
233        painter->drawText(drawPoint+QPoint(mControls[FavouriteControlOn]->image()->width()+2, option.rect.height()/2),
234                QString::number(numberOfFavourities(index)));
235#ifdef MAEMO
236        drawPoint.setX(drawPoint.x() - spacer - mControls[FavouriteControlOn]->image()->width());
237        painter->drawImage(drawPoint,*mControls[AlarmControlOn]->image());
238        painter->drawText(drawPoint+QPoint(mControls[FavouriteControlOn]->image()->width()+2, option.rect.height()/2),
239                QString::number(numberOfAlarms(index)));
240#endif
241        // draw texts
242        QString numEvents = QString::number(index.model()->rowCount(index)).append("/");
243        drawPoint.setX(drawPoint.x() - spacer - fmSmall.boundingRect(numEvents).width());
244        drawPoint.setY(drawPoint.y() + option.rect.height()/2);
245        painter->drawText(drawPoint,numEvents);
246
247        QPointF titlePointF = QPoint(
248                option.rect.x()+SPACER,
249                option.rect.y()+option.rect.height()-fmBig.descent());
250        painter->setFont(fontBig);
251
252        painter->drawText(titlePointF,qVariantValue<QString>(index.data()));
253    }
254
255    //// HIGHLIGHTING SELECTED ITEM
256    //if (option.state & QStyle::State_Selected)
257        //painter->fillRect(option.rect, option.palette.highlight());
258
259    painter->restore();
260}
261
262QSize Delegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
263{
264    Q_UNUSED(option)
265
266    if (index.internalId() == 0) // time group
267    {
268        return QSize(40,40);
269    }
270    else // event
271    {
272        return QSize(100,100);
273    }
274}
275
276bool Delegate::hasParent( const QModelIndex &index ) const
277{
278    if( index.parent().isValid() )
279        return true;
280    else
281        return false;
282}
283 
284bool Delegate::isLast( const QModelIndex &index ) const
285{
286    if(!hasParent(index))
287        return false; // what should be returned here?
288
289    if(index.row() >= (index.model()->rowCount(index.parent())-1))
290        return true;
291    else
292        return false;
293}
294
295bool Delegate::isExpanded( const QModelIndex &index ) const
296{
297    if( !mViewPtr )
298        return false;
299    else
300        return mViewPtr->isExpanded( index );
301}
302
303Delegate::ControlId Delegate::whichControlClicked(const QModelIndex &aIndex, const QPoint &aPoint) const
304{
305    if(!hasParent(aIndex)) // time-group item (root item)
306        return ControlNone;
307
308    QListIterator<ControlId> i(mControls.keys());
309    while (i.hasNext())
310    {
311        ControlId id = i.next();
312        if(mControls[id]->drawRect(static_cast<QTreeView*>(parent())->visualRect(aIndex)).contains(aPoint))
313            return id;
314    }
315
316    return ControlNone;
317}
318
319void Delegate::defineControls()
320{
321    Control *control;
322    QPoint p(0,0);
323    // FAVOURITE ICONs
324    // on
325    control = new Control(FavouriteControlOn,QString(":icons/favourite-onBig.png"));
326    p = QPoint(0,SPACER);
327    p.setX(p.x()-control->image()->width()-SPACER);
328    control->setDrawPoint(p);
329    mControls.insert(FavouriteControlOn,control);
330    // off
331    control = new Control(FavouriteControlOff,QString(":icons/favourite-offBig.png"));
332    p = QPoint(0,SPACER);
333    p.setX(p.x()-control->image()->width()-SPACER);
334    control->setDrawPoint(p);
335    mControls.insert(FavouriteControlOff,control);
336
337#ifdef MAEMO
338    // ALARM ICONs
339    // on
340    control = new Control(AlarmControlOn,QString(":icons/alarm-onBig.png"));
341    p = mControls[FavouriteControlOn]->drawPoint();
342    p.setX(p.x()-control->image()->width()-SPACER);
343    control->setDrawPoint(p);
344    mControls.insert(AlarmControlOn,control);
345    // off
346    control = new Control(AlarmControlOff,QString(":icons/alarm-offBig.png"));
347    p = mControls[FavouriteControlOff]->drawPoint();
348    p.setX(p.x()-control->image()->width()-SPACER);
349    control->setDrawPoint(p);
350    mControls.insert(AlarmControlOff,control);
351
352    // MAP ICON
353    control = new Control(MapControl,QString(":icons/compassBig.png"));
354    p = mControls[AlarmControlOn]->drawPoint();
355    p.setX(p.x()-control->image()->width()-SPACER);
356    control->setDrawPoint(p);
357    mControls.insert(MapControl,control);
358#else
359    // MAP ICON
360    control = new Control(MapControl,QString(":icons/compassBig.png"));
361    p = mControls[FavouriteControlOn]->drawPoint();
362    p.setX(p.x()-control->image()->width()-SPACER);
363    control->setDrawPoint(p);
364    mControls.insert(MapControl,control);
365#endif
366
367    // WARNING ICONs
368    // on
369    control = new Control(WarningControlOn,QString(":icons/exclamation-iconOn.png"));
370    p = mControls[MapControl]->drawPoint();
371    p.setX(p.x()-control->image()->width()-SPACER);
372    control->setDrawPoint(p);
373    mControls.insert(WarningControlOn,control);
374    // off
375    control = new Control(WarningControlOff,QString(":icons/exclamation-iconOff.png"));
376    p = mControls[MapControl]->drawPoint();
377    p.setX(p.x()-control->image()->width()-SPACER);
378    control->setDrawPoint(p);
379    mControls.insert(WarningControlOff,control);
380}
381
382bool Delegate::isPointFromRect(const QPoint &aPoint, const QRect &aRect) const
383{
384    if( (aPoint.x()>=aRect.left() && aPoint.x()<=aRect.right()) && (aPoint.y()>=aRect.top() && aPoint.y()<=aRect.bottom()) )
385        return true;
386
387    return false;
388}
389
390int Delegate::numberOfFavourities(const QModelIndex &index) const
391{
392    if(index.parent().isValid()) // it's event, not time-group
393        return 0;
394
395    int nrofFavs = 0;
396    for(int i=0; i<index.model()->rowCount(index); i++)
397        if(static_cast<Event*>(index.child(i,0).internalPointer())->isFavourite())
398            nrofFavs++;
399
400    return nrofFavs;
401}
402
403int Delegate::numberOfAlarms(const QModelIndex &index) const
404{
405    if(index.parent().isValid()) // it's event, not time-group
406        return 0;
407
408    int nrofAlarms = 0;
409    for(int i=0; i<index.model()->rowCount(index); i++)
410        if(static_cast<Event*>(index.child(i,0).internalPointer())->hasAlarm())
411            nrofAlarms++;
412
413    return nrofAlarms;
414}
415
416bool Delegate::hasTimeConflict(const QModelIndex &index, const QModelIndex &parent) const
417{
418    Event *event = static_cast<Event*>(index.internalPointer());
419    QTime start = event->start().time();
420    QTime end = start.addSecs(event->duration());
421    for(int i=0; i<parent.model()->rowCount(parent); i++)
422    {
423        if((event->id()!=static_cast<Event*>(parent.child(i,0).internalPointer())->id())
424        &&
425        (static_cast<Event*>(parent.child(i,0).internalPointer())->isFavourite()))
426        {
427            if (((start >= static_cast<Event*>(parent.child(i,0).internalPointer())->start().time())
428            &&
429            (start <= static_cast<Event*>(parent.child(i,0).internalPointer())->start().time().addSecs(static_cast<Event*>(parent.child(i,0).internalPointer())->duration())))
430            ||
431            ((end >= static_cast<Event*>(parent.child(i,0).internalPointer())->start().time())
432            &&
433            (end <= static_cast<Event*>(parent.child(i,0).internalPointer())->start().time().addSecs(static_cast<Event*>(parent.child(i,0).internalPointer())->duration()))))
434            {
435                return true;
436            }
437        }
438    }
439    return false;
440}
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