source: src/mvc/delegate.cpp @ 7680536

qt5
Last change on this file since 7680536 was 7680536, checked in by gregor herrmann <gregoa@…>, 10 years ago

fix #includes

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1/*
2 * Copyright (C) 2010 Ixonos Plc.
3 * Copyright (C) 2011-2012 Philipp Spitzer, gregor herrmann, Stefan Stahl
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
59    QColor textColor = option.palette.color(QPalette::Text);
60
61    if(hasParent(index))
62    {
63        // entry horizontal layout:
64        // * spacer (aka y position of image)
65        // * image
66        // * rest is text, which is 1 line of title with big letters and 2 lines of Presenter and Track
67        int aux = option.rect.height() - SPACER - mControls[FavouriteControlOn]->image()->height();
68        Event *event = static_cast<Event*>(index.internalPointer());
69
70        // font SMALL
71        QFont fontSmall = option.font;
72        fontSmall.setBold(false);
73        fontSmall.setPixelSize(aux*0.2);
74        QFontMetrics fmSmall(fontSmall);
75        // font SMALL bold
76        QFont fontSmallB = fontSmall;
77        fontSmallB.setBold(true);
78
79        // font BIG
80        QFont fontBig = option.font;
81        fontBig.setBold(false);
82        fontBig.setPixelSize(aux*0.33);
83        QFontMetrics fmBig(fontBig);
84
85        // font BIG bold
86        QFont fontBigB = fontBig;
87        fontBigB.setBold(true);
88        QFontMetrics fmBigB(fontBigB);
89
90        // background (in case of time conflicts)
91        if(event->hasTimeConflict()) {
92            painter->setBrush(Qt::yellow);
93            painter->setPen(Qt::NoPen);
94            painter->drawRect(option.rect);
95        }
96
97        // background (without time conflicts)
98        else {
99            QStyleOption styleOption;
100            styleOption.rect = option.rect;
101            qApp->style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &styleOption, painter, mViewPtr);
102        }
103
104        // draw Controls
105        foreach(Control* c, mControls.values()) {
106            c->setEnabled(false);
107        }
108        if(event->isFavourite())
109            mControls[FavouriteControlOn]->paint(painter, option.rect);
110        else
111            mControls[FavouriteControlOff]->paint(painter, option.rect);
112#ifdef MAEMO
113        if(event->hasAlarm())
114            mControls[AlarmControlOn]->paint(painter, option.rect);
115        else
116            mControls[AlarmControlOff]->paint(painter, option.rect);
117#endif
118        if(event->hasTimeConflict())
119            mControls[WarningControl]->paint(painter, option.rect);
120
121        // draw texts
122        // it starts just below the image
123        // ("position of text" is lower-left angle of the first letter,
124        //  so the first line is actually at the same height as the image)
125        painter->setPen(QPen(event->hasTimeConflict() ? Qt::black : textColor));
126        QPointF titlePointF(option.rect.x() + SPACER,
127                            option.rect.y() + SPACER + mControls[FavouriteControlOn]->image()->height());
128        QTime start = event->start().time();
129        painter->setFont(fontBig);
130        painter->drawText(titlePointF,start.toString("hh:mm") + "-" + start.addSecs(event->duration()).toString("hh:mm") + ", " + event->roomName());
131
132        // title
133        titlePointF.setY(titlePointF.y()+fmBig.height()-fmBig.descent());
134        painter->setFont(fontBigB);
135        QString title = event->title();
136        if(fmBigB.boundingRect(title).width() > (option.rect.width()-2*SPACER)) // the title won't fit the screen
137        {
138            // chop words from the end
139            while( (fmBigB.boundingRect(title + "...").width() > (option.rect.width()-2*SPACER)) && !title.isEmpty())
140            {
141                title.chop(1);
142                // chop characters one-by-one from the end
143                while( (!title.at(title.length()-1).isSpace()) && !title.isEmpty())
144                {
145                    title.chop(1);
146                }
147            }
148            title += "...";
149        }
150        painter->drawText(titlePointF,title);
151
152        // persons
153        titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent());
154        painter->setFont(fontSmall);
155        QString presenterPrefix = event->persons().count() < 2 ? "Presenter" : "Presenters";
156        painter->drawText(titlePointF,presenterPrefix + ": " + event->persons().join(" and "));
157
158        // track
159        titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent());
160        painter->drawText(titlePointF,"Track: " + Track::retrieveTrackName(event->trackId()));
161    }
162
163    else // doesn't have parent - time-groups' elements (top items)
164    {
165        int numFav = numberOfFavourities(index);
166#ifdef MAEMO
167        int numAlarm = numberOfAlarms(index);
168#endif
169
170        QStyleOptionButton styleOptionButton;
171        styleOptionButton.rect = option.rect;
172        if (isExpanded(index)) styleOptionButton.state = QStyle::State_Sunken;
173        // styleOptionButton.text = qVariantValue<QString>(index.data());
174        qApp->style()->drawPrimitive(QStyle::PE_PanelButtonCommand, &styleOptionButton, painter, mViewPtr);
175        // qApp->style()->drawControl(QStyle::CE_PushButtonLabel, &styleOptionButton, painter, mViewPtr);
176        // qApp->style()->drawPrimitive(QStyle::PE_IndicatorArrowDown, &styleOptionButton, painter, mViewPtr);
177
178        QFont fontSmall = option.font;
179        fontSmall.setBold(true);
180        fontSmall.setPixelSize(option.rect.height()*scaleFactor1);
181        QFontMetrics fmSmall(fontSmall);
182
183        QFont fontBig = option.font;
184        fontBig.setBold(true);
185        fontBig.setPixelSize(option.rect.height()*scaleFactor2);
186        QFontMetrics fmBig(fontBig);
187
188        int spacer = (fmSmall.boundingRect("999").width() < SPACER) ? SPACER : fmSmall.boundingRect("999").width();
189
190        // draw icons
191        painter->setPen(QPen(textColor));
192        painter->setFont(fontSmall);
193        QImage *image = mControls[numFav ? FavouriteControlOn : FavouriteControlOff]->image();
194        QPoint drawPoint =
195            option.rect.topRight()
196            - QPoint(
197                    spacer + image->width(),
198                    - option.rect.height()/2 + image->height()/2);
199        painter->drawImage(drawPoint,*image);
200        painter->drawText(drawPoint+QPoint(image->width()+2, image->height() - 2),
201                QString::number(numFav));
202#ifdef MAEMO
203        drawPoint.setX(drawPoint.x() - spacer - image->width());
204        image = mControls[numAlarm ? AlarmControlOn : AlarmControlOff]->image();
205        painter->drawImage(drawPoint,*image);
206        painter->drawText(drawPoint+QPoint(image->width()+2, image->height() - 2),
207                QString::number(numAlarm));
208#endif
209        // draw texts
210        QString numEvents = QString::number(index.model()->rowCount(index)).append("/");
211        drawPoint.setX(drawPoint.x() - spacer - fmSmall.boundingRect(numEvents).width());
212        drawPoint.setY(drawPoint.y()+image->height() - 2);
213        painter->drawText(drawPoint,numEvents);
214
215        QPointF titlePointF = QPoint(
216                option.rect.x()+SPACER,
217                option.rect.y()+option.rect.height()-fmBig.descent());
218        painter->setFont(fontBig);
219        painter->drawText(titlePointF,qVariantValue<QString>(index.data()));
220    }
221
222    painter->restore();
223}
224
225QSize Delegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
226{
227    Q_UNUSED(option)
228
229    if (index.internalId() == 0) // time group
230    {
231        return QSize(40,40);
232    }
233    else // event
234    {
235        return QSize(100,100);
236    }
237}
238
239bool Delegate::hasParent( const QModelIndex &index ) const
240{
241    if( index.parent().isValid() )
242        return true;
243    else
244        return false;
245}
246 
247bool Delegate::isLast( const QModelIndex &index ) const
248{
249    if(!hasParent(index))
250        return false; // what should be returned here?
251
252    if(index.row() >= (index.model()->rowCount(index.parent())-1))
253        return true;
254    else
255        return false;
256}
257
258bool Delegate::isExpanded( const QModelIndex &index ) const
259{
260    if( !mViewPtr )
261        return false;
262    else
263        return mViewPtr->isExpanded( index );
264}
265
266Delegate::ControlId Delegate::whichControlClicked(const QModelIndex &aIndex, const QPoint &aPoint) const
267{
268    if(!hasParent(aIndex)) // time-group item (root item)
269        return ControlNone;
270
271    QListIterator<ControlId> i(mControls.keys());
272    while (i.hasNext())
273    {
274        ControlId id = i.next();
275        Control *control = mControls[id];
276        if (control->enabled()
277            and control->drawRect(static_cast<QTreeView*>(parent())->visualRect(aIndex)).contains(aPoint))
278        {
279            return id;
280        }
281    }
282
283    return ControlNone;
284}
285
286Delegate::Control::Control(ControlId aControlId, const QString &aImageName, const Control* prev_control)
287    : mId(aControlId)
288    , mImage(new QImage(aImageName))
289    , mDrawPoint(QPoint(0,0))
290    , mEnabled(false)
291{
292    QPoint p;
293    if (prev_control == NULL) {
294        p = QPoint(0, SPACER);
295    } else {
296        p = prev_control->drawPoint();
297    }
298    p.setX(p.x()-image()->width()-SPACER);
299    setDrawPoint(p);
300}
301
302void Delegate::Control::paint(QPainter* painter, const QRect rect)
303{
304    painter->drawImage(drawPoint(rect),*image());
305    setEnabled(true);
306}
307
308void Delegate::defineControls()
309{
310    // FAVOURITE ICONs
311    // on
312    mControls.insert(FavouriteControlOn, new Control(FavouriteControlOn, QString(":icons/favourite-on.png"), NULL));
313    // off
314    mControls.insert(FavouriteControlOff, new Control(FavouriteControlOff, QString(":icons/favourite-off.png"), NULL));
315
316#ifdef MAEMO
317    // ALARM ICONs
318    // on
319    mControls.insert(AlarmControlOn,
320                    new Control(AlarmControlOn, QString(":icons/alarm-on.png"), mControls[FavouriteControlOn]));
321    // off
322    mControls.insert(AlarmControlOff,
323                    new Control(AlarmControlOff, QString(":icons/alarm-off.png"), mControls[FavouriteControlOff]));
324    // WARNING ICON
325    mControls.insert(WarningControl,
326                    new Control(WarningControl, QString(":icons/dialog-warning.png"), mControls[AlarmControlOff]));
327#else
328    // WARNING ICON
329    mControls.insert(WarningControl,
330                    new Control(WarningControl, QString(":icons/dialog-warning.png"), mControls[FavouriteControlOn]));
331#endif
332
333}
334
335bool Delegate::isPointFromRect(const QPoint &aPoint, const QRect &aRect) const
336{
337    if( (aPoint.x()>=aRect.left() && aPoint.x()<=aRect.right()) && (aPoint.y()>=aRect.top() && aPoint.y()<=aRect.bottom()) )
338        return true;
339
340    return false;
341}
342
343int Delegate::numberOfFavourities(const QModelIndex &index) const
344{
345    if(index.parent().isValid()) // it's event, not time-group
346        return 0;
347
348    int nrofFavs = 0;
349    for(int i=0; i<index.model()->rowCount(index); i++)
350        if(static_cast<Event*>(index.child(i,0).internalPointer())->isFavourite())
351            nrofFavs++;
352
353    return nrofFavs;
354}
355
356int Delegate::numberOfAlarms(const QModelIndex &index) const
357{
358    if(index.parent().isValid()) // it's event, not time-group
359        return 0;
360
361    int nrofAlarms = 0;
362    for(int i=0; i<index.model()->rowCount(index); i++)
363        if(static_cast<Event*>(index.child(i,0).internalPointer())->hasAlarm())
364            nrofAlarms++;
365
366    return nrofAlarms;
367}
368
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