source: src/mvc/delegate.cpp @ 526128c

qt5
Last change on this file since 526128c was e6ab8a2, checked in by Philipp Spitzer <philipp@…>, 11 years ago

Removed the ability to show "pictures" (maps) of rooms and maps of conferences.
The XML file does not contain picture/map/image information of conferences or rooms.
We left the room.picture definition in the database SQL because there is no "drop column"
in sqlite.

  • Property mode set to 100644
File size: 14.5 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 = Qt::cyan;
59    //QColor bkgrColor = QColor(0xAA,0xAA,0xAA);
60    QColor conflictColor = Qt::yellow;
61
62    QPen borderPen(bkgrColor.darker());
63    if(hasParent(index))
64    {
65        // entry horisontal layout:
66        // * spacer (aka y position of image)
67        // * image
68        // * rest is text, which is 1 line of title with big letters and 2 lines of Presenter and Track
69        int aux = option.rect.height() - SPACER - mControls[FavouriteControlOn]->image()->height();
70        Event *event = static_cast<Event*>(index.internalPointer());
71        // font SMALL
72        QFont fontSmall = option.font;
73        fontSmall.setBold(false);
74        fontSmall.setPixelSize(aux*0.2);
75        QFontMetrics fmSmall(fontSmall);
76        // font SMALL bold
77        QFont fontSmallB = fontSmall;
78        fontSmallB.setBold(true);
79        QFontMetrics fmSmallB(fontSmallB);
80
81        // font BIG
82        QFont fontBig = option.font;
83        fontBig.setBold(false);
84        fontBig.setPixelSize(aux*0.33);
85        QFontMetrics fmBig(fontBig);
86        // font BIG bold
87        QFont fontBigB = fontBig;
88        fontBigB.setBold(true);
89        QFontMetrics fmBigB(fontBigB);
90
91        //int spacer = (fmSmall.boundingRect("999").width() < SPACER) ? SPACER : fmSmall.boundingRect("999").width();
92
93        //Time conflicts are colored differently
94        if(event->hasTimeConflict())
95            bkgrColor = conflictColor;
96
97        QLinearGradient itemGradient(option.rect.topLeft(), option.rect.bottomLeft());
98        itemGradient.setColorAt(0.0, Qt::white);
99        itemGradient.setColorAt(0.25, bkgrColor);
100        itemGradient.setColorAt(0.5, bkgrColor);
101        itemGradient.setColorAt(0.75, bkgrColor);
102        itemGradient.setColorAt(1.0, Qt::white);
103
104        if(isLast(index))
105        {
106            QPainterPath endPath;
107            endPath.moveTo(option.rect.topLeft());
108            endPath.lineTo(option.rect.bottomLeft()-QPoint(0, RADIUS));
109            endPath.arcTo(option.rect.left(), option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 180, 90);
110            endPath.lineTo(option.rect.bottomRight()-QPoint(RADIUS, 0));
111            endPath.arcTo(option.rect.right()-2*RADIUS, option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 270, 90);
112            endPath.lineTo(option.rect.topRight());
113
114            //painter->setBrush( bkgrColor );
115            painter->setBrush(itemGradient);
116            painter->setPen(borderPen);
117            painter->drawPath(endPath);
118
119            painter->setFont(option.font);
120        }
121        else // middle elements
122        {
123            //painter->setBrush( bkgrColor );
124            painter->setBrush(itemGradient);
125            painter->setPen(Qt::NoPen);
126            painter->drawRect(option.rect);
127
128            painter->setPen(borderPen);
129            // vertical lines
130            painter->drawLine(option.rect.topLeft(), option.rect.bottomLeft());
131            painter->drawLine(option.rect.topRight(), option.rect.bottomRight());
132            // horizontal lines
133            painter->drawLine(option.rect.bottomLeft(), option.rect.bottomRight());
134
135            painter->setFont(option.font);
136        }
137
138        // draw Controls
139        foreach(Control* c, mControls.values()) {
140            c->setEnabled(false);
141        }
142        if(event->isFavourite())
143            mControls[FavouriteControlOn]->paint(painter, option.rect);
144        else
145            mControls[FavouriteControlOff]->paint(painter, option.rect);
146#ifdef MAEMO
147        if(event->hasAlarm())
148            mControls[AlarmControlOn]->paint(painter, option.rect);
149        else
150            mControls[AlarmControlOff]->paint(painter, option.rect);
151#endif
152        if(event->hasTimeConflict())
153            mControls[WarningControl]->paint(painter, option.rect);
154
155        // draw texts
156        // it starts just below the image
157        // ("position of text" is lower-left angle of the first letter,
158        //  so the first line is actually at the same height as the image)
159        QPointF titlePointF(option.rect.x() + SPACER,
160                            option.rect.y() + SPACER + mControls[FavouriteControlOn]->image()->height());
161        QTime start = event->start().time();
162        painter->setFont(fontBig);
163        painter->drawText(titlePointF,start.toString("hh:mm") + "-" + start.addSecs(event->duration()).toString("hh:mm") + ", " + event->roomName());
164        // title
165        titlePointF.setY(titlePointF.y()+fmBig.height()-fmBig.descent());
166        painter->setFont(fontBigB);
167        QString title = event->title();
168        if(fmBigB.boundingRect(title).width() > (option.rect.width()-2*SPACER)) // the title won't fit the screen
169        {
170            // chop words from the end
171            while( (fmBigB.boundingRect(title + "...").width() > (option.rect.width()-2*SPACER)) && !title.isEmpty())
172            {
173                title.chop(1);
174                // chop characters one-by-one from the end
175                while( (!title.at(title.length()-1).isSpace()) && !title.isEmpty())
176                {
177                    title.chop(1);
178                }
179            }
180            title += "...";
181        }
182        painter->drawText(titlePointF,title);
183        // persons
184        titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent());
185        painter->setFont(fontSmall);
186        painter->drawText(titlePointF,"Presenter(s): " + event->persons().join(" and "));
187        // track
188        titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent());
189        painter->drawText(titlePointF,"Track: " + Track::retrieveTrackName(event->trackId()));
190    }
191    else // doesn't have parent - time-groups' elements (top items)
192    {
193        QFont fontSmall = option.font;
194        fontSmall.setBold(true);
195        fontSmall.setPixelSize(option.rect.height()*scaleFactor1);
196        QFontMetrics fmSmall(fontSmall);
197
198        QFont fontBig = option.font;
199        fontBig.setBold(true);
200        fontBig.setPixelSize(option.rect.height()*scaleFactor2);
201        QFontMetrics fmBig(fontBig);
202
203        int spacer = (fmSmall.boundingRect("999").width() < SPACER) ? SPACER : fmSmall.boundingRect("999").width();
204
205        QLinearGradient titleGradient(option.rect.topLeft(), option.rect.topRight());
206        //titleGradient.setColorAt(0.0, Qt::white);
207        titleGradient.setColorAt(0.0, bkgrColor);
208        titleGradient.setColorAt(0.5, Qt::white);
209        titleGradient.setColorAt(1.0, bkgrColor);
210
211        QPainterPath titlePath;
212        if(isExpanded(index))
213        {
214            titlePath.moveTo(option.rect.bottomLeft());
215            titlePath.lineTo(option.rect.topLeft()+QPoint(0, RADIUS));
216            titlePath.arcTo(option.rect.left(), option.rect.top(), 2*RADIUS, 2*RADIUS, 180, -90);
217            titlePath.lineTo(option.rect.topRight()-QPoint(RADIUS, 0));
218            titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.top(), 2*RADIUS, 2*RADIUS, 90, -90);
219            titlePath.lineTo(option.rect.bottomRight());
220            titlePath.closeSubpath();
221        }
222        else
223        {
224            titlePath.lineTo(option.rect.topLeft()+QPoint(0, RADIUS));
225            titlePath.arcTo(option.rect.left(), option.rect.top(), 2*RADIUS, 2*RADIUS, 180, -90);
226            titlePath.lineTo(option.rect.topRight()-QPoint(RADIUS, 0));
227            titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.top(), 2*RADIUS, 2*RADIUS, 90, -90);
228            titlePath.lineTo(option.rect.bottomRight()-QPoint(0, RADIUS));
229            titlePath.arcTo(option.rect.right()-2*RADIUS, option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 0, -90);
230            titlePath.lineTo(option.rect.bottomLeft()+QPoint(RADIUS, 0));
231            titlePath.arcTo(option.rect.left(), option.rect.bottom()-2*RADIUS, 2*RADIUS, 2*RADIUS, 270, -90);     
232            titlePath.closeSubpath();
233        }
234
235        painter->setBrush(titleGradient);
236        painter->setPen(borderPen);
237        painter->drawPath(titlePath);
238
239        // draw icons
240        painter->setFont(fontSmall);
241        QImage *image = mControls[FavouriteControlOn]->image();
242        QPoint drawPoint =
243            option.rect.topRight()
244            - QPoint(
245                    spacer + image->width(),
246                    - option.rect.height()/2 + image->height()/2);
247        painter->drawImage(drawPoint,*image);
248        painter->drawText(drawPoint+QPoint(image->width()+2, image->height() - 2),
249                QString::number(numberOfFavourities(index)));
250#ifdef MAEMO
251        drawPoint.setX(drawPoint.x() - spacer - image->width());
252        painter->drawImage(drawPoint,*mControls[AlarmControlOn]->image());
253        painter->drawText(drawPoint+QPoint(image->width()+2, image->height() - 2),
254                QString::number(numberOfAlarms(index)));
255#endif
256        // draw texts
257        QString numEvents = QString::number(index.model()->rowCount(index)).append("/");
258        drawPoint.setX(drawPoint.x() - spacer - fmSmall.boundingRect(numEvents).width());
259        drawPoint.setY(drawPoint.y()+image->height() - 2);
260        painter->drawText(drawPoint,numEvents);
261
262        QPointF titlePointF = QPoint(
263                option.rect.x()+SPACER,
264                option.rect.y()+option.rect.height()-fmBig.descent());
265        painter->setFont(fontBig);
266
267        painter->drawText(titlePointF,qVariantValue<QString>(index.data()));
268    }
269
270    //// HIGHLIGHTING SELECTED ITEM
271    //if (option.state & QStyle::State_Selected)
272        //painter->fillRect(option.rect, option.palette.highlight());
273
274    painter->restore();
275}
276
277QSize Delegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
278{
279    Q_UNUSED(option)
280
281    if (index.internalId() == 0) // time group
282    {
283        return QSize(40,40);
284    }
285    else // event
286    {
287        return QSize(100,100);
288    }
289}
290
291bool Delegate::hasParent( const QModelIndex &index ) const
292{
293    if( index.parent().isValid() )
294        return true;
295    else
296        return false;
297}
298 
299bool Delegate::isLast( const QModelIndex &index ) const
300{
301    if(!hasParent(index))
302        return false; // what should be returned here?
303
304    if(index.row() >= (index.model()->rowCount(index.parent())-1))
305        return true;
306    else
307        return false;
308}
309
310bool Delegate::isExpanded( const QModelIndex &index ) const
311{
312    if( !mViewPtr )
313        return false;
314    else
315        return mViewPtr->isExpanded( index );
316}
317
318Delegate::ControlId Delegate::whichControlClicked(const QModelIndex &aIndex, const QPoint &aPoint) const
319{
320    if(!hasParent(aIndex)) // time-group item (root item)
321        return ControlNone;
322
323    QListIterator<ControlId> i(mControls.keys());
324    while (i.hasNext())
325    {
326        ControlId id = i.next();
327        Control *control = mControls[id];
328        if (control->enabled()
329            and control->drawRect(static_cast<QTreeView*>(parent())->visualRect(aIndex)).contains(aPoint))
330        {
331            return id;
332        }
333    }
334
335    return ControlNone;
336}
337
338Delegate::Control::Control(ControlId aControlId, const QString &aImageName, const Control* prev_control)
339    : mId(aControlId)
340    , mImage(new QImage(aImageName))
341    , mDrawPoint(QPoint(0,0))
342    , mEnabled(false)
343{
344    QPoint p;
345    if (prev_control == NULL) {
346        p = QPoint(0, SPACER);
347    } else {
348        p = prev_control->drawPoint();
349    }
350    p.setX(p.x()-image()->width()-SPACER);
351    setDrawPoint(p);
352}
353
354void Delegate::Control::paint(QPainter* painter, const QRect rect)
355{
356    painter->drawImage(drawPoint(rect),*image());
357    setEnabled(true);
358}
359
360void Delegate::defineControls()
361{
362    // FAVOURITE ICONs
363    // on
364    mControls.insert(FavouriteControlOn, new Control(FavouriteControlOn, QString(":icons/emblem-new.png"), NULL));
365    // off
366    mControls.insert(FavouriteControlOff, new Control(FavouriteControlOff, QString(":icons/emblem-new-off.png"), NULL));
367
368#ifdef MAEMO
369    // ALARM ICONs
370    // on
371    mControls.insert(AlarmControlOn,
372                    new Control(AlarmControlOn, QString(":icons/appointment-soon.png"), mControls[FavouriteControlOn]));
373    // off
374    mControls.insert(AlarmControlOff,
375                    new Control(AlarmControlOff, QString(":icons/appointment-soon-off.png"), mControls[FavouriteControlOff]));
376#endif
377
378    // WARNING ICON
379    mControls.insert(WarningControl,
380                    new Control(WarningControl, QString(":icons/dialog-warning.png"), mControls[FavouriteControlOn]));
381}
382
383bool Delegate::isPointFromRect(const QPoint &aPoint, const QRect &aRect) const
384{
385    if( (aPoint.x()>=aRect.left() && aPoint.x()<=aRect.right()) && (aPoint.y()>=aRect.top() && aPoint.y()<=aRect.bottom()) )
386        return true;
387
388    return false;
389}
390
391int Delegate::numberOfFavourities(const QModelIndex &index) const
392{
393    if(index.parent().isValid()) // it's event, not time-group
394        return 0;
395
396    int nrofFavs = 0;
397    for(int i=0; i<index.model()->rowCount(index); i++)
398        if(static_cast<Event*>(index.child(i,0).internalPointer())->isFavourite())
399            nrofFavs++;
400
401    return nrofFavs;
402}
403
404int Delegate::numberOfAlarms(const QModelIndex &index) const
405{
406    if(index.parent().isValid()) // it's event, not time-group
407        return 0;
408
409    int nrofAlarms = 0;
410    for(int i=0; i<index.model()->rowCount(index); i++)
411        if(static_cast<Event*>(index.child(i,0).internalPointer())->hasAlarm())
412            nrofAlarms++;
413
414    return nrofAlarms;
415}
416
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