source: src/mvc/delegate.cpp @ 5dbcd35

qt5
Last change on this file since 5dbcd35 was d785a93, checked in by gregor herrmann <gregoa@…>, 11 years ago

Distinguish "Presenter" and "Presenters" (instead of "Presenter(s)").
Closes: Ticket #17

  • Property mode set to 100644
File size: 14.7 KB
Line 
1/*
2 * Copyright (C) 2010 Ixonos Plc.
3 * Copyright (C) 2011 Philipp Spitzer, gregor herrmann
4 *
5 * This file is part of ConfClerk.
6 *
7 * ConfClerk is free software: you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the Free
9 * Software Foundation, either version 2 of the License, or (at your option)
10 * any later version.
11 *
12 * ConfClerk is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
15 * more details.
16 *
17 * You should have received a copy of the GNU General Public License along with
18 * ConfClerk.  If not, see <http://www.gnu.org/licenses/>.
19 */
20#include "delegate.h"
21#include "eventmodel.h"
22#include <track.h>
23
24#include <QDebug>
25#include <QPainter>
26
27#include "room.h"
28
29const int RADIUS = 10;
30const int SPACER = 10;
31
32const double scaleFactor1 = 0.4;
33const double scaleFactor2 = 0.8;
34
35Delegate::Delegate(QTreeView *aParent)
36    : QItemDelegate(aParent)
37    , mViewPtr(aParent)
38{
39    mControls.clear();
40    defineControls();
41}
42
43Delegate::~Delegate()
44{
45    QListIterator<ControlId> i(mControls.keys());
46    while (i.hasNext())
47    {
48        delete mControls[i.next()]->image();
49    }
50}
51
52void Delegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
53{
54    if(!mViewPtr)
55        return;
56
57    painter->save();
58    QColor bkgrColor = option.palette.color(QPalette::Background);
59    //QColor bkgrColor = QColor(0xAA,0xAA,0xAA);
60    QColor conflictColor = Qt::yellow;
61
62    QColor textColor = option.palette.color(QPalette::Text);
63    QPen borderPen(textColor);
64    if(hasParent(index))
65    {
66        // entry horizontal layout:
67        // * spacer (aka y position of image)
68        // * image
69        // * rest is text, which is 1 line of title with big letters and 2 lines of Presenter and Track
70        int aux = option.rect.height() - SPACER - mControls[FavouriteControlOn]->image()->height();
71        Event *event = static_cast<Event*>(index.internalPointer());
72        // font SMALL
73        QFont fontSmall = option.font;
74        fontSmall.setBold(false);
75        fontSmall.setPixelSize(aux*0.2);
76        QFontMetrics fmSmall(fontSmall);
77        // font SMALL bold
78        QFont fontSmallB = fontSmall;
79        fontSmallB.setBold(true);
80        QFontMetrics fmSmallB(fontSmallB);
81
82        // font BIG
83        QFont fontBig = option.font;
84        fontBig.setBold(false);
85        fontBig.setPixelSize(aux*0.33);
86        QFontMetrics fmBig(fontBig);
87        // font BIG bold
88        QFont fontBigB = fontBig;
89        fontBigB.setBold(true);
90        QFontMetrics fmBigB(fontBigB);
91
92        //int spacer = (fmSmall.boundingRect("999").width() < SPACER) ? SPACER : fmSmall.boundingRect("999").width();
93
94        //Time conflicts are colored differently
95        if(event->hasTimeConflict())
96            bkgrColor = conflictColor;
97
98        QLinearGradient itemGradient(option.rect.topLeft(), option.rect.bottomLeft());
99        itemGradient.setColorAt(0.0, bkgrColor);
100        itemGradient.setColorAt(1.0, bkgrColor);
101
102        if(isLast(index))
103        {
104            QPainterPath endPath;
105            endPath.moveTo(option.rect.topLeft());
106            endPath.lineTo(option.rect.bottomLeft()-QPoint(0, RADIUS));
107            endPath.arcTo(option.rect.left(), option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 180, 90);
108            endPath.lineTo(option.rect.bottomRight()-QPoint(RADIUS, 0));
109            endPath.arcTo(option.rect.right()-2*RADIUS, option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 270, 90);
110            endPath.lineTo(option.rect.topRight());
111
112            //painter->setBrush( bkgrColor );
113            painter->setBrush(itemGradient);
114            painter->setPen(Qt::NoPen);
115            painter->drawPath(endPath);
116            painter->setPen(borderPen);
117
118            painter->setFont(option.font);
119        }
120        else // middle elements
121        {
122            //painter->setBrush( bkgrColor );
123            painter->setBrush(itemGradient);
124            painter->setPen(Qt::NoPen);
125            painter->drawRect(option.rect);
126
127            painter->setPen(borderPen);
128            /*
129            // vertical lines
130            painter->drawLine(option.rect.topLeft(), option.rect.bottomLeft());
131            painter->drawLine(option.rect.topRight(), option.rect.bottomRight());
132            */
133            // horizontal lines
134            painter->drawLine(option.rect.bottomLeft(), option.rect.bottomRight());
135
136            painter->setFont(option.font);
137        }
138
139        // draw Controls
140        foreach(Control* c, mControls.values()) {
141            c->setEnabled(false);
142        }
143        if(event->isFavourite())
144            mControls[FavouriteControlOn]->paint(painter, option.rect);
145        else
146            mControls[FavouriteControlOff]->paint(painter, option.rect);
147#ifdef MAEMO
148        if(event->hasAlarm())
149            mControls[AlarmControlOn]->paint(painter, option.rect);
150        else
151            mControls[AlarmControlOff]->paint(painter, option.rect);
152#endif
153        if(event->hasTimeConflict())
154            mControls[WarningControl]->paint(painter, option.rect);
155
156        // draw texts
157        // it starts just below the image
158        // ("position of text" is lower-left angle of the first letter,
159        //  so the first line is actually at the same height as the image)
160        QPointF titlePointF(option.rect.x() + SPACER,
161                            option.rect.y() + SPACER + mControls[FavouriteControlOn]->image()->height());
162        QTime start = event->start().time();
163        painter->setFont(fontBig);
164        painter->drawText(titlePointF,start.toString("hh:mm") + "-" + start.addSecs(event->duration()).toString("hh:mm") + ", " + event->roomName());
165        // title
166        titlePointF.setY(titlePointF.y()+fmBig.height()-fmBig.descent());
167        painter->setFont(fontBigB);
168        QString title = event->title();
169        if(fmBigB.boundingRect(title).width() > (option.rect.width()-2*SPACER)) // the title won't fit the screen
170        {
171            // chop words from the end
172            while( (fmBigB.boundingRect(title + "...").width() > (option.rect.width()-2*SPACER)) && !title.isEmpty())
173            {
174                title.chop(1);
175                // chop characters one-by-one from the end
176                while( (!title.at(title.length()-1).isSpace()) && !title.isEmpty())
177                {
178                    title.chop(1);
179                }
180            }
181            title += "...";
182        }
183        painter->drawText(titlePointF,title);
184        // persons
185        titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent());
186        painter->setFont(fontSmall);
187        QString presenterPrefix = event->persons().count() < 2 ? "Presenter" : "Presenters";
188        painter->drawText(titlePointF,presenterPrefix + ": " + event->persons().join(" and "));
189        // track
190        titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent());
191        painter->drawText(titlePointF,"Track: " + Track::retrieveTrackName(event->trackId()));
192    }
193    else // doesn't have parent - time-groups' elements (top items)
194    {
195        QFont fontSmall = option.font;
196        fontSmall.setBold(true);
197        fontSmall.setPixelSize(option.rect.height()*scaleFactor1);
198        QFontMetrics fmSmall(fontSmall);
199
200        QFont fontBig = option.font;
201        fontBig.setBold(true);
202        fontBig.setPixelSize(option.rect.height()*scaleFactor2);
203        QFontMetrics fmBig(fontBig);
204
205        int spacer = (fmSmall.boundingRect("999").width() < SPACER) ? SPACER : fmSmall.boundingRect("999").width();
206
207        QLinearGradient titleGradient(option.rect.topLeft(), option.rect.topRight());
208        bkgrColor = option.palette.color(QPalette::Highlight);
209        textColor = option.palette.color(QPalette::HighlightedText);
210        titleGradient.setColorAt(0.0, bkgrColor);
211        titleGradient.setColorAt(1.0, bkgrColor);
212
213        QPainterPath titlePath;
214        if(isExpanded(index))
215        {
216            titlePath.moveTo(option.rect.bottomLeft());
217            titlePath.lineTo(option.rect.topLeft()+QPoint(0, RADIUS));
218            titlePath.arcTo(option.rect.left(), option.rect.top(), 2*RADIUS, 2*RADIUS, 180, -90);
219            titlePath.lineTo(option.rect.topRight()-QPoint(RADIUS, 0));
220            titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.top(), 2*RADIUS, 2*RADIUS, 90, -90);
221            titlePath.lineTo(option.rect.bottomRight());
222            titlePath.closeSubpath();
223        }
224        else
225        {
226            titlePath.lineTo(option.rect.topLeft()+QPoint(0, RADIUS));
227            titlePath.arcTo(option.rect.left(), option.rect.top(), 2*RADIUS, 2*RADIUS, 180, -90);
228            titlePath.lineTo(option.rect.topRight()-QPoint(RADIUS, 0));
229            titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.top(), 2*RADIUS, 2*RADIUS, 90, -90);
230            titlePath.lineTo(option.rect.bottomRight()-QPoint(0, RADIUS));
231            titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 0, -90);
232            titlePath.lineTo(option.rect.bottomLeft()+QPoint(RADIUS, 0));
233            titlePath.arcTo(option.rect.left(), option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 270, -90);     
234            titlePath.closeSubpath();
235        }
236
237        painter->setBrush(titleGradient);
238        painter->setPen(borderPen);
239        painter->drawPath(titlePath);
240
241        // draw icons
242        borderPen.setColor(textColor);
243        painter->setPen(borderPen);
244        painter->setFont(fontSmall);
245        QImage *image = mControls[FavouriteControlOn]->image();
246        QPoint drawPoint =
247            option.rect.topRight()
248            - QPoint(
249                    spacer + image->width(),
250                    - option.rect.height()/2 + image->height()/2);
251        painter->drawImage(drawPoint,*image);
252        painter->drawText(drawPoint+QPoint(image->width()+2, image->height() - 2),
253                QString::number(numberOfFavourities(index)));
254#ifdef MAEMO
255        drawPoint.setX(drawPoint.x() - spacer - image->width());
256        painter->drawImage(drawPoint,*mControls[AlarmControlOn]->image());
257        painter->drawText(drawPoint+QPoint(image->width()+2, image->height() - 2),
258                QString::number(numberOfAlarms(index)));
259#endif
260        // draw texts
261        QString numEvents = QString::number(index.model()->rowCount(index)).append("/");
262        drawPoint.setX(drawPoint.x() - spacer - fmSmall.boundingRect(numEvents).width());
263        drawPoint.setY(drawPoint.y()+image->height() - 2);
264        painter->drawText(drawPoint,numEvents);
265
266        QPointF titlePointF = QPoint(
267                option.rect.x()+SPACER,
268                option.rect.y()+option.rect.height()-fmBig.descent());
269        painter->setFont(fontBig);
270
271        painter->drawText(titlePointF,qVariantValue<QString>(index.data()));
272    }
273
274    //// HIGHLIGHTING SELECTED ITEM
275    //if (option.state & QStyle::State_Selected)
276        //painter->fillRect(option.rect, option.palette.highlight());
277
278    painter->restore();
279}
280
281QSize Delegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
282{
283    Q_UNUSED(option)
284
285    if (index.internalId() == 0) // time group
286    {
287        return QSize(40,40);
288    }
289    else // event
290    {
291        return QSize(100,100);
292    }
293}
294
295bool Delegate::hasParent( const QModelIndex &index ) const
296{
297    if( index.parent().isValid() )
298        return true;
299    else
300        return false;
301}
302 
303bool Delegate::isLast( const QModelIndex &index ) const
304{
305    if(!hasParent(index))
306        return false; // what should be returned here?
307
308    if(index.row() >= (index.model()->rowCount(index.parent())-1))
309        return true;
310    else
311        return false;
312}
313
314bool Delegate::isExpanded( const QModelIndex &index ) const
315{
316    if( !mViewPtr )
317        return false;
318    else
319        return mViewPtr->isExpanded( index );
320}
321
322Delegate::ControlId Delegate::whichControlClicked(const QModelIndex &aIndex, const QPoint &aPoint) const
323{
324    if(!hasParent(aIndex)) // time-group item (root item)
325        return ControlNone;
326
327    QListIterator<ControlId> i(mControls.keys());
328    while (i.hasNext())
329    {
330        ControlId id = i.next();
331        Control *control = mControls[id];
332        if (control->enabled()
333            and control->drawRect(static_cast<QTreeView*>(parent())->visualRect(aIndex)).contains(aPoint))
334        {
335            return id;
336        }
337    }
338
339    return ControlNone;
340}
341
342Delegate::Control::Control(ControlId aControlId, const QString &aImageName, const Control* prev_control)
343    : mId(aControlId)
344    , mImage(new QImage(aImageName))
345    , mDrawPoint(QPoint(0,0))
346    , mEnabled(false)
347{
348    QPoint p;
349    if (prev_control == NULL) {
350        p = QPoint(0, SPACER);
351    } else {
352        p = prev_control->drawPoint();
353    }
354    p.setX(p.x()-image()->width()-SPACER);
355    setDrawPoint(p);
356}
357
358void Delegate::Control::paint(QPainter* painter, const QRect rect)
359{
360    painter->drawImage(drawPoint(rect),*image());
361    setEnabled(true);
362}
363
364void Delegate::defineControls()
365{
366    // FAVOURITE ICONs
367    // on
368    mControls.insert(FavouriteControlOn, new Control(FavouriteControlOn, QString(":icons/emblem-new.png"), NULL));
369    // off
370    mControls.insert(FavouriteControlOff, new Control(FavouriteControlOff, QString(":icons/emblem-new-off.png"), NULL));
371
372#ifdef MAEMO
373    // ALARM ICONs
374    // on
375    mControls.insert(AlarmControlOn,
376                    new Control(AlarmControlOn, QString(":icons/appointment-soon.png"), mControls[FavouriteControlOn]));
377    // off
378    mControls.insert(AlarmControlOff,
379                    new Control(AlarmControlOff, QString(":icons/appointment-soon-off.png"), mControls[FavouriteControlOff]));
380#endif
381
382    // WARNING ICON
383    mControls.insert(WarningControl,
384                    new Control(WarningControl, QString(":icons/dialog-warning.png"), mControls[FavouriteControlOn]));
385}
386
387bool Delegate::isPointFromRect(const QPoint &aPoint, const QRect &aRect) const
388{
389    if( (aPoint.x()>=aRect.left() && aPoint.x()<=aRect.right()) && (aPoint.y()>=aRect.top() && aPoint.y()<=aRect.bottom()) )
390        return true;
391
392    return false;
393}
394
395int Delegate::numberOfFavourities(const QModelIndex &index) const
396{
397    if(index.parent().isValid()) // it's event, not time-group
398        return 0;
399
400    int nrofFavs = 0;
401    for(int i=0; i<index.model()->rowCount(index); i++)
402        if(static_cast<Event*>(index.child(i,0).internalPointer())->isFavourite())
403            nrofFavs++;
404
405    return nrofFavs;
406}
407
408int Delegate::numberOfAlarms(const QModelIndex &index) const
409{
410    if(index.parent().isValid()) // it's event, not time-group
411        return 0;
412
413    int nrofAlarms = 0;
414    for(int i=0; i<index.model()->rowCount(index); i++)
415        if(static_cast<Event*>(index.child(i,0).internalPointer())->hasAlarm())
416            nrofAlarms++;
417
418    return nrofAlarms;
419}
420
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