source: src/mvc/delegate.cpp @ 7b3cd0e

qt5
Last change on this file since 7b3cd0e was 7b3cd0e, checked in by Philipp Spitzer <philipp@…>, 5 years ago

Event favourite is now tristate in the code now and the corresponding buttons are tristate as well.

  • Property mode set to 100644
File size: 12.2 KB
Line 
1/*
2 * Copyright (C) 2010 Ixonos Plc.
3 * Copyright (C) 2011-2015 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[FavouriteControlStrong]->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        switch (event->favourite()) {
109        case Favourite_strong:
110            mControls[FavouriteControlStrong]->paint(painter, option.rect);
111            break;
112        case Favourite_weak:
113            mControls[FavouriteControlWeak]->paint(painter, option.rect);
114            break;
115        case Favourite_no:
116            mControls[FavouriteControlNo]->paint(painter, option.rect);
117            break;
118        }
119
120        if(event->hasAlarm())
121            mControls[AlarmControlOn]->paint(painter, option.rect);
122        else
123            mControls[AlarmControlOff]->paint(painter, option.rect);
124
125        if(event->hasTimeConflict())
126            mControls[WarningControl]->paint(painter, option.rect);
127
128        // draw texts
129        // it starts just below the image
130        // ("position of text" is lower-left angle of the first letter,
131        //  so the first line is actually at the same height as the image)
132        painter->setPen(QPen(event->hasTimeConflict() ? Qt::black : textColor));
133        QPointF titlePointF(option.rect.x() + SPACER,
134                            option.rect.y() + SPACER + mControls[FavouriteControlStrong]->image()->height());
135        QTime start = event->start().time();
136        painter->setFont(fontBig);
137        painter->drawText(titlePointF,start.toString("hh:mm") + "-" + start.addSecs(event->duration()).toString("hh:mm") + ", " + event->roomName());
138
139        // title
140        titlePointF.setY(titlePointF.y()+fmBig.height()-fmBig.descent());
141        painter->setFont(fontBigB);
142        QString title = event->title();
143        if(fmBigB.boundingRect(title).width() > (option.rect.width()-2*SPACER)) // the title won't fit the screen
144        {
145            // chop words from the end
146            while( (fmBigB.boundingRect(title + "...").width() > (option.rect.width()-2*SPACER)) && !title.isEmpty())
147            {
148                title.chop(1);
149                // chop characters one-by-one from the end
150                while( (!title.at(title.length()-1).isSpace()) && !title.isEmpty())
151                {
152                    title.chop(1);
153                }
154            }
155            title += "...";
156        }
157        painter->drawText(titlePointF,title);
158
159        // persons
160        titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent());
161        painter->setFont(fontSmall);
162        QString presenterPrefix = event->persons().count() < 2 ? "Presenter" : "Presenters";
163        painter->drawText(titlePointF,presenterPrefix + ": " + event->persons().join(" and "));
164
165        // track
166        titlePointF.setY(titlePointF.y()+fmSmall.height()-fmSmall.descent());
167        painter->drawText(titlePointF,"Track: " + Track::retrieveTrackName(event->trackId()));
168    }
169
170    else // doesn't have parent - time-groups' elements (top items)
171    {
172        int numFav = numberOfFavourities(index);
173        int numAlarm = numberOfAlarms(index);
174
175        QStyleOptionButton styleOptionButton;
176        styleOptionButton.rect = option.rect;
177        if (isExpanded(index)) styleOptionButton.state = QStyle::State_Sunken;
178        // styleOptionButton.text = qVariantValue<QString>(index.data());
179        qApp->style()->drawPrimitive(QStyle::PE_PanelButtonCommand, &styleOptionButton, painter, mViewPtr);
180        // qApp->style()->drawControl(QStyle::CE_PushButtonLabel, &styleOptionButton, painter, mViewPtr);
181        // qApp->style()->drawPrimitive(QStyle::PE_IndicatorArrowDown, &styleOptionButton, painter, mViewPtr);
182
183        QFont fontSmall = option.font;
184        fontSmall.setBold(true);
185        fontSmall.setPixelSize(option.rect.height()*scaleFactor1);
186        QFontMetrics fmSmall(fontSmall);
187
188        QFont fontBig = option.font;
189        fontBig.setBold(true);
190        fontBig.setPixelSize(option.rect.height()*scaleFactor2);
191        QFontMetrics fmBig(fontBig);
192
193        int spacer = (fmSmall.boundingRect("999").width() < SPACER) ? SPACER : fmSmall.boundingRect("999").width();
194
195        // draw icons
196        painter->setPen(QPen(textColor));
197        painter->setFont(fontSmall);
198        QImage *image = mControls[numFav ? FavouriteControlStrong : FavouriteControlNo]->image();
199        QPoint drawPoint =
200            option.rect.topRight()
201            - QPoint(
202                    spacer + image->width(),
203                    - option.rect.height()/2 + image->height()/2);
204        painter->drawImage(drawPoint,*image);
205        painter->drawText(drawPoint+QPoint(image->width()+2, image->height() - 2),
206                QString::number(numFav));
207
208        drawPoint.setX(drawPoint.x() - spacer - image->width());
209        image = mControls[numAlarm ? AlarmControlOn : AlarmControlOff]->image();
210        painter->drawImage(drawPoint,*image);
211        painter->drawText(drawPoint+QPoint(image->width()+2, image->height() - 2),
212                QString::number(numAlarm));
213
214        // draw texts
215        QString numEvents = QString::number(index.model()->rowCount(index)).append("/");
216        drawPoint.setX(drawPoint.x() - spacer - fmSmall.boundingRect(numEvents).width());
217        drawPoint.setY(drawPoint.y()+image->height() - 2);
218        painter->drawText(drawPoint,numEvents);
219
220        QPointF titlePointF = QPoint(
221                option.rect.x()+SPACER,
222                option.rect.y()+option.rect.height()-fmBig.descent());
223        painter->setFont(fontBig);
224        painter->drawText(titlePointF,qVariantValue<QString>(index.data()));
225    }
226
227    painter->restore();
228}
229
230QSize Delegate::sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const
231{
232    Q_UNUSED(option)
233
234    if (index.internalId() == 0) // time group
235    {
236        return QSize(40,40);
237    }
238    else // event
239    {
240        return QSize(100,100);
241    }
242}
243
244bool Delegate::hasParent( const QModelIndex &index ) const
245{
246    if( index.parent().isValid() )
247        return true;
248    else
249        return false;
250}
251 
252bool Delegate::isLast( const QModelIndex &index ) const
253{
254    if(!hasParent(index))
255        return false; // what should be returned here?
256
257    if(index.row() >= (index.model()->rowCount(index.parent())-1))
258        return true;
259    else
260        return false;
261}
262
263bool Delegate::isExpanded( const QModelIndex &index ) const
264{
265    if( !mViewPtr )
266        return false;
267    else
268        return mViewPtr->isExpanded( index );
269}
270
271Delegate::ControlId Delegate::whichControlClicked(const QModelIndex &aIndex, const QPoint &aPoint) const
272{
273    if(!hasParent(aIndex)) // time-group item (root item)
274        return ControlNone;
275
276    QListIterator<ControlId> i(mControls.keys());
277    while (i.hasNext())
278    {
279        ControlId id = i.next();
280        Control *control = mControls[id];
281        if (control->enabled()
282            and control->drawRect(static_cast<QTreeView*>(parent())->visualRect(aIndex)).contains(aPoint))
283        {
284            return id;
285        }
286    }
287
288    return ControlNone;
289}
290
291Delegate::Control::Control(ControlId aControlId, const QString &aImageName, const Control* prev_control)
292    : mId(aControlId)
293    , mImage(new QImage(aImageName))
294    , mDrawPoint(QPoint(0,0))
295    , mEnabled(false)
296{
297    QPoint p;
298    if (prev_control == NULL) {
299        p = QPoint(0, SPACER);
300    } else {
301        p = prev_control->drawPoint();
302    }
303    p.setX(p.x()-image()->width()-SPACER);
304    setDrawPoint(p);
305}
306
307void Delegate::Control::paint(QPainter* painter, const QRect rect)
308{
309    painter->drawImage(drawPoint(rect),*image());
310    setEnabled(true);
311}
312
313void Delegate::defineControls()
314{
315    // FAVOURITE ICONs
316    // strong
317    mControls.insert(FavouriteControlStrong, new Control(FavouriteControlStrong, QString(":icons/favourite-on.png"), NULL));
318    // weak
319    mControls.insert(FavouriteControlWeak, new Control(FavouriteControlWeak, QString(":icons/favourite-weak.png"), NULL));
320    // no
321    mControls.insert(FavouriteControlNo, new Control(FavouriteControlNo, QString(":icons/favourite-off.png"), NULL));
322
323    // ALARM ICONs
324    // on
325    mControls.insert(AlarmControlOn,
326                    new Control(AlarmControlOn, QString(":icons/alarm-on.png"), mControls[FavouriteControlStrong]));
327    // off
328    mControls.insert(AlarmControlOff,
329                    new Control(AlarmControlOff, QString(":icons/alarm-off.png"), mControls[FavouriteControlNo]));
330    // WARNING ICON
331    mControls.insert(WarningControl,
332                    new Control(WarningControl, QString(":icons/dialog-warning.png"), mControls[AlarmControlOff]));
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())->favourite() != Favourite_no)
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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