src/gui/daynavigatorwidget.cpp

   1 /*
   2  * Copyright (C) 2010 Ixonos Plc.
   3  *
   4  * This file is part of fosdem-schedule.
   5  *
   6  * fosdem-schedule is free software: you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the Free
   8  * Software Foundation, either version 2 of the License, or (at your option)
   9  * any later version.
  10  *
  11  * fosdem-schedule is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along with
  17  * fosdem-schedule.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19 #include "daynavigatorwidget.h"
  20
  21 #include <QPainter>
  22 #include <QFontMetrics>
  23 #include <QLabel>
  24
  25 #include <QDebug>
  26
  27 DayNavigatorWidget::DayNavigatorWidget(QWidget *aParent)
  28     : QWidget(aParent)
  29     , mStartDate(QDate())
  30     , mEndDate(QDate())
  31     , mCurDate(QDate())
  32 {
  33     setupUi(this);
  34     connect(prevDayButton, SIGNAL(clicked()), SLOT(prevDayButtonClicked()));
  35     connect(nextDayButton, SIGNAL(clicked()), SLOT(nextDayButtonClicked()));
  36
  37     mFontMetrics = new QFontMetrics(QLabel().font());
  38 }
  39
  40 void DayNavigatorWidget::setDates(const QDate &aStartDate, const QDate &aEndDate)
  41 {
  42     Q_ASSERT(aStartDate<=aEndDate);
  43
  44     //qDebug() << "DayNavigatorWidget::setDates(): " << aStartDate << ", " << aEndDate;
  45     mStartDate = aStartDate;
  46     mEndDate = aEndDate;
  47     mCurDate = aStartDate;
  48
  49     QRect rect = mFontMetrics->boundingRect(mCurDate.toString("MMM dd yyyy"));
  50
  51     if(mStartDate==mEndDate) // only one day conference
  52     {
  53         prevDayButton->setDisabled(true);
  54         nextDayButton->setDisabled(true);
  55         emit(dateChanged(mCurDate));
  56     }
  57     else
  58     {
  59         // at least 2-days conference
  60         prevDayButton->setDisabled(true);
  61         nextDayButton->setDisabled(false);
  62         emit(dateChanged(mCurDate));
  63     }
  64 }
  65
  66 void DayNavigatorWidget::prevDayButtonClicked()
  67 {
  68     //qDebug() << mStartDate << ":" << mCurDate << ":" << mEndDate;
  69     if(mCurDate>mStartDate)
  70     {
  71         mCurDate = mCurDate.addDays(-1);
  72         // check start date
  73         if(mCurDate==mStartDate || mStartDate==mEndDate)
  74             prevDayButton->setDisabled(true);
  75         else
  76             prevDayButton->setDisabled(false);
  77         // check end date
  78         if(mCurDate==mEndDate || mStartDate==mEndDate)
  79             nextDayButton->setDisabled(true);
  80         else
  81             nextDayButton->setDisabled(false);
  82
  83         emit(dateChanged(mCurDate));
  84         selectedDate->update();
  85     }
  86 }
  87
  88 void DayNavigatorWidget::nextDayButtonClicked()
  89 {
  90     //qDebug() << mStartDate << ":" << mCurDate << ":" << mEndDate;
  91     if(mCurDate<mEndDate)
  92     {
  93         mCurDate = mCurDate.addDays(1);
  94         // check start date
  95         if(mCurDate==mStartDate || mStartDate==mEndDate)
  96             prevDayButton->setDisabled(true);
  97         else
  98             prevDayButton->setDisabled(false);
  99         // check end date
 100         if(mCurDate==mEndDate || mStartDate==mEndDate)
 101             nextDayButton->setDisabled(true);
 102         else
 103             nextDayButton->setDisabled(false);
 104
 105         emit(dateChanged(mCurDate));
 106         selectedDate->update();
 107     }
 108 }
 109
 110 void DayNavigatorWidget::paintEvent(QPaintEvent *aEvent)
 111 {
 112     Q_UNUSED(aEvent);
 113
 114     QString selectedDateStr = mCurDate.toString("MMM dd yyyy");
 115
 116     QPainter painter(this);
 117     painter.save();
 118     QRect r = selectedDate->geometry();
 119     QRect s = mFontMetrics->boundingRect(selectedDateStr);
 120     QPoint p = QPoint(
 121             r.x() + r.width()/2 - s.height()/2 - mFontMetrics->descent(),
 122             - 130
 123             );
 124
 125     painter.translate(r.width()/2, r.height()/2);
 126     painter.rotate(270);
 127     painter.drawText(p.y(), p.x(), selectedDateStr); // y,x,string
 128     painter.restore();
 129 }
 130