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

qt5
Last change on this file since 979e5be was b0a3bc7, checked in by pavelpa <pavelpa@…>, 12 years ago

number of events/alarms/favs is bottom-aligned to the bottom of the icons

  • Property mode set to 100644
File size: 14.8 KB
Line 
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())->hasTimeConflict())
69            bkgrColor = Qt::yellow;
70
71        if(isLast(index))
72        {
73            QLinearGradient lastGradient(option.rect.topLeft(), option.rect.bottomLeft());
74            lastGradient.setColorAt(0.0, Qt::white);
75            lastGradient.setColorAt(0.5, bkgrColor);
76            lastGradient.setColorAt(1.0, Qt::white);
77
78            QPainterPath endPath;
79            endPath.moveTo(option.rect.topLeft());
80            endPath.lineTo(option.rect.bottomLeft()-QPoint(0, RADIUS));
81            endPath.arcTo(option.rect.left(), option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 180, 90);
82            endPath.lineTo(option.rect.bottomRight()-QPoint(RADIUS, 0));
83            endPath.arcTo(option.rect.right()-2*RADIUS, option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 270, 90);
84            endPath.lineTo(option.rect.topRight());
85
86            painter->setBrush( bkgrColor );
87            //painter->setBrush(lastGradient);
88            painter->setPen(borderPen);
89            painter->drawPath(endPath);
90
91            painter->setFont(option.font);
92        }
93        else // middle elements
94        {
95            QLinearGradient middleGradient(option.rect.topLeft(), option.rect.bottomLeft());
96            middleGradient.setColorAt(0.0, Qt::white);
97            middleGradient.setColorAt(0.25, bkgrColor);
98            middleGradient.setColorAt(0.5, Qt::white);
99            middleGradient.setColorAt(0.75, bkgrColor);
100            middleGradient.setColorAt(1.0, Qt::white);
101
102            painter->setBrush( bkgrColor );
103            //painter->setBrush(middleGradient);
104            painter->setPen(Qt::NoPen);
105            painter->drawRect(option.rect);
106
107            painter->setPen(borderPen);
108            // vertical lines
109            painter->drawLine(option.rect.topLeft(), option.rect.bottomLeft());
110            painter->drawLine(option.rect.topRight(), option.rect.bottomRight());
111            // horizontal lines
112            painter->drawLine(option.rect.bottomLeft(), option.rect.bottomRight());
113
114            painter->setFont(option.font);
115        }
116
117        // draw Controls
118        // favourite
119        if(static_cast<Event*>(index.internalPointer())->isFavourite())
120            painter->drawImage(mControls[FavouriteControlOn]->drawPoint(option.rect),*mControls[FavouriteControlOn]->image());
121        else
122            painter->drawImage(mControls[FavouriteControlOff]->drawPoint(option.rect),*mControls[FavouriteControlOff]->image());
123#ifdef MAEMO
124        // alarm
125        if(static_cast<Event*>(index.internalPointer())->hasAlarm())
126            painter->drawImage(mControls[AlarmControlOn]->drawPoint(option.rect),*mControls[AlarmControlOn]->image());
127        else
128            painter->drawImage(mControls[AlarmControlOff]->drawPoint(option.rect),*mControls[AlarmControlOff]->image());
129#endif
130        // map
131        painter->drawImage(mControls[MapControl]->drawPoint(option.rect),*mControls[MapControl]->image());
132        // Time conflict
133        if(static_cast<Event*>(index.internalPointer())->hasTimeConflict())
134            painter->drawImage(mControls[WarningControl]->drawPoint(option.rect),*mControls[WarningControl]->image());
135
136        // draw texts
137        Event *event = static_cast<Event*>(index.internalPointer());
138        QPointF titlePointF(mControls[FavouriteControlOn]->drawPoint(option.rect));
139        titlePointF.setX(option.rect.x()+SPACER);
140        titlePointF.setY(titlePointF.y()+mControls[FavouriteControlOn]->image()->height());
141        QTime start = event->start().time();
142        painter->setFont(fontBig);
143        painter->drawText(titlePointF,start.toString("hh:mm") + "-" + start.addSecs(event->duration()).toString("hh:mm") + ", " + event->room());
144        // title
145        titlePointF.setY(titlePointF.y()+fmBig.height()-fmBig.descent());
146        painter->setFont(fontBigB);
147        QString title = event->title();
148        if(fmBigB.boundingRect(title).width() > (option.rect.width()-2*SPACER)) // the title won't fit the screen
149        {
150            // chop words from the end
151            while( (fmBigB.boundingRect(title + "...").width() > (option.rect.width()-2*SPACER)) && !title.isEmpty())
152            {
153                title.chop(1);
154                // chop characters one-by-one from the end
155                while( (!title.at(title.length()-1).isSpace()) && !title.isEmpty())
156                {
157                    title.chop(1);
158                }
159            }
160            title += "...";
161        }
162        painter->drawText(titlePointF,title);
163        // persons
164        titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent());
165        painter->setFont(fontSmall);
166        painter->drawText(titlePointF,"Presenter(s): " + event->persons().join(" and "));
167        // track
168        titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent());
169        painter->drawText(titlePointF,"Track: " + Track::retrieveTrackName(event->trackId()));
170    }
171    else // doesn't have parent - time-groups' elements (top items)
172    {
173        QFont fontSmall = option.font;
174        fontSmall.setBold(true);
175        fontSmall.setPixelSize(option.rect.height()*scaleFactor1);
176        QFontMetrics fmSmall(fontSmall);
177
178        QFont fontBig = option.font;
179        fontBig.setBold(true);
180        fontBig.setPixelSize(option.rect.height()*scaleFactor2);
181        QFontMetrics fmBig(fontBig);
182
183        int spacer = (fmSmall.boundingRect("999").width() < SPACER) ? SPACER : fmSmall.boundingRect("999").width();
184
185        QLinearGradient titleGradient(option.rect.topLeft(), option.rect.topRight());
186        //titleGradient.setColorAt(0.0, Qt::white);
187        titleGradient.setColorAt(0.0, bkgrColor);
188        titleGradient.setColorAt(0.5, Qt::white);
189        titleGradient.setColorAt(1.0, bkgrColor);
190
191        QPainterPath titlePath;
192        if(isExpanded(index))
193        {
194            titlePath.moveTo(option.rect.bottomLeft());
195            titlePath.lineTo(option.rect.topLeft()+QPoint(0, RADIUS));
196            titlePath.arcTo(option.rect.left(), option.rect.top(), 2*RADIUS, 2*RADIUS, 180, -90);
197            titlePath.lineTo(option.rect.topRight()-QPoint(RADIUS, 0));
198            titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.top(), 2*RADIUS, 2*RADIUS, 90, -90);
199            titlePath.lineTo(option.rect.bottomRight());
200            titlePath.closeSubpath();
201        }
202        else
203        {
204            titlePath.lineTo(option.rect.topLeft()+QPoint(0, RADIUS));
205            titlePath.arcTo(option.rect.left(), option.rect.top(), 2*RADIUS, 2*RADIUS, 180, -90);
206            titlePath.lineTo(option.rect.topRight()-QPoint(RADIUS, 0));
207            titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.top(), 2*RADIUS, 2*RADIUS, 90, -90);
208            titlePath.lineTo(option.rect.bottomRight()-QPoint(0, RADIUS));
209            titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 0, -90);
210            titlePath.lineTo(option.rect.bottomLeft()+QPoint(RADIUS, 0));
211            titlePath.arcTo(option.rect.left(), option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 270, -90);     
212            titlePath.closeSubpath();
213        }
214
215        painter->setBrush(titleGradient);
216        painter->setPen(borderPen);
217        painter->drawPath(titlePath);
218
219        // draw icons
220        painter->setFont(fontSmall);
221        QImage *image = mControls[FavouriteControlOn]->image();
222        QPoint drawPoint =
223            option.rect.topRight()
224            - QPoint(
225                    spacer + image->width(),
226                    - option.rect.height()/2 + image->height()/2);
227        painter->drawImage(drawPoint,*image);
228        painter->drawText(drawPoint+QPoint(image->width()+2, image->height() - 2),
229                QString::number(numberOfFavourities(index)));
230#ifdef MAEMO
231        drawPoint.setX(drawPoint.x() - spacer - image->width());
232        painter->drawImage(drawPoint,*mControls[AlarmControlOn]->image());
233        painter->drawText(drawPoint+QPoint(image->width()+2, image->height() - 2),
234                QString::number(numberOfAlarms(index)));
235#endif
236        // draw texts
237        QString numEvents = QString::number(index.model()->rowCount(index)).append("/");
238        drawPoint.setX(drawPoint.x() - spacer - fmSmall.boundingRect(numEvents).width());
239        drawPoint.setY(drawPoint.y()+image->height() - 2);
240        painter->drawText(drawPoint,numEvents);
241
242        QPointF titlePointF = QPoint(
243                option.rect.x()+SPACER,
244                option.rect.y()+option.rect.height()-fmBig.descent());
245        painter->setFont(fontBig);
246
247        painter->drawText(titlePointF,qVariantValue<QString>(index.data()));
248    }
249
250    //// HIGHLIGHTING SELECTED ITEM
251    //if (option.state & QStyle::State_Selected)
252        //painter->fillRect(option.rect, option.palette.highlight());
253
254    painter->restore();
255}
256
257QSize Delegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
258{
259    Q_UNUSED(option)
260
261    if (index.internalId() == 0) // time group
262    {
263        return QSize(40,40);
264    }
265    else // event
266    {
267        return QSize(100,100);
268    }
269}
270
271bool Delegate::hasParent( const QModelIndex &index ) const
272{
273    if( index.parent().isValid() )
274        return true;
275    else
276        return false;
277}
278 
279bool Delegate::isLast( const QModelIndex &index ) const
280{
281    if(!hasParent(index))
282        return false; // what should be returned here?
283
284    if(index.row() >= (index.model()->rowCount(index.parent())-1))
285        return true;
286    else
287        return false;
288}
289
290bool Delegate::isExpanded( const QModelIndex &index ) const
291{
292    if( !mViewPtr )
293        return false;
294    else
295        return mViewPtr->isExpanded( index );
296}
297
298Delegate::ControlId Delegate::whichControlClicked(const QModelIndex &aIndex, const QPoint &aPoint) const
299{
300    if(!hasParent(aIndex)) // time-group item (root item)
301        return ControlNone;
302
303    QListIterator<ControlId> i(mControls.keys());
304    while (i.hasNext())
305    {
306        ControlId id = i.next();
307        if(mControls[id]->drawRect(static_cast<QTreeView*>(parent())->visualRect(aIndex)).contains(aPoint))
308        {
309            if(id == WarningControl)
310            {
311                if(static_cast<Event*>(aIndex.internalPointer())->hasTimeConflict())
312                    return id;
313            }
314            else
315                return id;
316        }
317    }
318
319    return ControlNone;
320}
321
322void Delegate::defineControls()
323{
324    Control *control;
325    QPoint p(0,0);
326    // FAVOURITE ICONs
327    // on
328    control = new Control(FavouriteControlOn,QString(":icons/favourite-onBig.png"));
329    p = QPoint(0,SPACER);
330    p.setX(p.x()-control->image()->width()-SPACER);
331    control->setDrawPoint(p);
332    mControls.insert(FavouriteControlOn,control);
333    // off
334    control = new Control(FavouriteControlOff,QString(":icons/favourite-offBig.png"));
335    p = QPoint(0,SPACER);
336    p.setX(p.x()-control->image()->width()-SPACER);
337    control->setDrawPoint(p);
338    mControls.insert(FavouriteControlOff,control);
339
340#ifdef MAEMO
341    // ALARM ICONs
342    // on
343    control = new Control(AlarmControlOn,QString(":icons/alarm-onBig.png"));
344    p = mControls[FavouriteControlOn]->drawPoint();
345    p.setX(p.x()-control->image()->width()-SPACER);
346    control->setDrawPoint(p);
347    mControls.insert(AlarmControlOn,control);
348    // off
349    control = new Control(AlarmControlOff,QString(":icons/alarm-offBig.png"));
350    p = mControls[FavouriteControlOff]->drawPoint();
351    p.setX(p.x()-control->image()->width()-SPACER);
352    control->setDrawPoint(p);
353    mControls.insert(AlarmControlOff,control);
354
355    // MAP ICON
356    control = new Control(MapControl,QString(":icons/compassBig.png"));
357    p = mControls[AlarmControlOn]->drawPoint();
358    p.setX(p.x()-control->image()->width()-SPACER);
359    control->setDrawPoint(p);
360    mControls.insert(MapControl,control);
361#else
362    // MAP ICON
363    control = new Control(MapControl,QString(":icons/compassBig.png"));
364    p = mControls[FavouriteControlOn]->drawPoint();
365    p.setX(p.x()-control->image()->width()-SPACER);
366    control->setDrawPoint(p);
367    mControls.insert(MapControl,control);
368#endif
369
370    // WARNING ICON
371    control = new Control(WarningControl,QString(":icons/exclamation.png"));
372    p = mControls[MapControl]->drawPoint();
373    p.setX(p.x()-control->image()->width()-SPACER);
374    control->setDrawPoint(p);
375    mControls.insert(WarningControl,control);
376}
377
378bool Delegate::isPointFromRect(const QPoint &aPoint, const QRect &aRect) const
379{
380    if( (aPoint.x()>=aRect.left() && aPoint.x()<=aRect.right()) && (aPoint.y()>=aRect.top() && aPoint.y()<=aRect.bottom()) )
381        return true;
382
383    return false;
384}
385
386int Delegate::numberOfFavourities(const QModelIndex &index) const
387{
388    if(index.parent().isValid()) // it's event, not time-group
389        return 0;
390
391    int nrofFavs = 0;
392    for(int i=0; i<index.model()->rowCount(index); i++)
393        if(static_cast<Event*>(index.child(i,0).internalPointer())->isFavourite())
394            nrofFavs++;
395
396    return nrofFavs;
397}
398
399int Delegate::numberOfAlarms(const QModelIndex &index) const
400{
401    if(index.parent().isValid()) // it's event, not time-group
402        return 0;
403
404    int nrofAlarms = 0;
405    for(int i=0; i<index.model()->rowCount(index); i++)
406        if(static_cast<Event*>(index.child(i,0).internalPointer())->hasAlarm())
407            nrofAlarms++;
408
409    return nrofAlarms;
410}
411
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