korganizer

navigatorbar.cpp

00001 /*
00002   This file is part of KOrganizer.
00003 
00004   Copyright (c) 2003 Cornelius Schumacher <schumacher@kde.org>
00005 
00006   This program is free software; you can redistribute it and/or modify
00007   it under the terms of the GNU General Public License as published by
00008   the Free Software Foundation; either version 2 of the License, or
00009   (at your option) any later version.
00010 
00011   This program is distributed in the hope that it will be useful,
00012   but WITHOUT ANY WARRANTY; without even the implied warranty of
00013   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
00014   GNU General Public License for more details.
00015 
00016   You should have received a copy of the GNU General Public License along
00017   with this program; if not, write to the Free Software Foundation, Inc.,
00018   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00019 
00020   As a special exception, permission is given to link this program
00021   with any edition of Qt, and distribute the resulting executable,
00022   without including the source code for Qt in the source distribution.
00023 */
00024 
00025 #include "navigatorbar.h"
00026 #include "koglobals.h"
00027 #include "koprefs.h"
00028 
00029 #include <kdebug.h>
00030 #include <kcalendarsystem.h>
00031 #include <klocale.h>
00032 #include <kglobal.h>
00033 #include <kiconloader.h>
00034 
00035 #include <QHBoxLayout>
00036 #include <QLabel>
00037 #include <QMenu>
00038 #include <QMouseEvent>
00039 #include <QString>
00040 #include <QToolButton>
00041 
00042 ActiveLabel::ActiveLabel( QWidget *parent ) : QLabel( parent )
00043 {
00044 }
00045 
00046 void ActiveLabel::mouseReleaseEvent( QMouseEvent * )
00047 {
00048   emit clicked();
00049 }
00050 
00051 NavigatorBar::NavigatorBar( QWidget *parent )
00052   : QWidget( parent ), mHasMinWidth( false )
00053 {
00054   QFont tfont = font();
00055   tfont.setPointSize( 10 );
00056   tfont.setBold( false );
00057 
00058   bool isRTL = KOGlobals::self()->reverseLayout();
00059 
00060   mPrevYear = createNavigationButton(
00061     isRTL ? "arrow-right-double" : "arrow-left-double",
00062     i18n( "Scroll backward to the previous year" ),
00063     i18n( "Click this button to scroll the display to the "
00064           "same approximate day of the previous year" ) );
00065 
00066   mPrevMonth = createNavigationButton(
00067     isRTL ? "arrow-right" : "arrow-left",
00068     i18n( "Scroll backward to the previous month" ),
00069     i18n( "Click this button to scroll the display to the "
00070           "same approximate date of the previous month" ) );
00071 
00072   mNextMonth = createNavigationButton(
00073     isRTL ? "arrow-left" : "arrow-right",
00074     i18n( "Scroll forward to the next month" ),
00075     i18n( "Click this button to scroll the display to the "
00076           "same approximate date of the next month" ) );
00077 
00078   mNextYear = createNavigationButton(
00079     isRTL ? "arrow-left-double" : "arrow-right-double",
00080     i18n( "Scroll forward to the next year" ),
00081     i18n( "Click this button to scroll the display to the "
00082           "same approximate day of the next year" ) );
00083 
00084   // Create month name button
00085   mMonth = new ActiveLabel( this );
00086   mMonth->setFont( tfont );
00087   mMonth->setAlignment( Qt::AlignCenter );
00088   mMonth->setMinimumHeight( mPrevYear->sizeHint().height() );
00089   mMonth->setToolTip( i18n( "Select a month" ) );
00090 
00091   // Create year button
00092   mYear = new ActiveLabel( this );
00093   mYear->setFont( tfont );
00094   mYear->setAlignment( Qt::AlignCenter );
00095   mYear->setMinimumHeight( mPrevYear->sizeHint().height() );
00096   mYear->setToolTip( i18n( "Select a year" ) );
00097 
00098   // set up control frame layout
00099   QHBoxLayout *ctrlLayout = new QHBoxLayout( this );
00100   ctrlLayout->addWidget( mPrevYear );
00101   ctrlLayout->addWidget( mPrevMonth );
00102   ctrlLayout->addWidget( mMonth );
00103   ctrlLayout->addWidget( mYear );
00104   ctrlLayout->addWidget( mNextMonth );
00105   ctrlLayout->addWidget( mNextYear );
00106 
00107   connect( mPrevYear, SIGNAL(clicked()), SIGNAL(goPrevYear()) );
00108   connect( mPrevMonth, SIGNAL(clicked()), SIGNAL(goPrevMonth()) );
00109   connect( mNextMonth, SIGNAL(clicked()), SIGNAL(goNextMonth()) );
00110   connect( mNextYear, SIGNAL(clicked()), SIGNAL(goNextYear()) );
00111   connect( mMonth, SIGNAL(clicked()), SLOT(selectMonth()) );
00112   connect( mYear, SIGNAL(clicked()), SLOT(selectYear()) );
00113 }
00114 
00115 NavigatorBar::~NavigatorBar()
00116 {
00117 }
00118 
00119 void NavigatorBar::showButtons( bool left, bool right )
00120 {
00121   if ( left ) {
00122     mPrevYear->show();
00123     mPrevMonth->show();
00124   } else {
00125     mPrevYear->hide();
00126     mPrevMonth->hide();
00127   }
00128 
00129   if ( right ) {
00130     mNextYear->show();
00131     mNextMonth->show();
00132   } else {
00133     mNextYear->hide();
00134     mNextMonth->hide();
00135   }
00136 }
00137 
00138 void NavigatorBar::selectDates( const KCal::DateList &dateList )
00139 {
00140   if ( dateList.count() > 0 ) {
00141     mDate = dateList.first();
00142 
00143     const KCalendarSystem *calSys = KOGlobals::self()->calendarSystem();
00144 
00145     if ( !mHasMinWidth ) {
00146       // Set minimum width to width of widest month name label
00147       int i;
00148       int maxwidth = 0;
00149 
00150       for ( i = 1; i <= calSys->monthsInYear( mDate ); ++i ) {
00151         QString m = calSys->monthName( i, calSys->year( mDate ) );
00152         int w = QFontMetrics( mMonth->font() ).width( QString( "%1" ).arg( m ) );
00153         if ( w > maxwidth ) {
00154           maxwidth = w;
00155         }
00156       }
00157       mMonth->setMinimumWidth( maxwidth );
00158 
00159       mHasMinWidth = true;
00160     }
00161 
00162     // set the label text at the top of the navigator
00163     mMonth->setText( i18nc( "monthname", "%1", calSys->monthName( mDate ) ) );
00164     mYear->setText( i18nc( "4 digit year", "%1", calSys->yearString( mDate ) ) );
00165   }
00166 }
00167 
00168 void NavigatorBar::selectMonth()
00169 {
00170   // every year can have different month names (in some calendar systems)
00171   const KCalendarSystem *calSys = KOGlobals::self()->calendarSystem();
00172 
00173   int i;
00174   int month = calSys->month( mDate );
00175   int year = calSys->year( mDate );
00176   int months = calSys->monthsInYear( mDate );
00177 
00178   QMenu *menu = new QMenu( mMonth );
00179   QList<QAction *>act;
00180 
00181   QAction *activateAction = 0;
00182   for ( i=1; i <= months; ++i ) {
00183     QAction *monthAction = menu->addAction( calSys->monthName( i, year ) );
00184     act.append( monthAction );
00185     if ( i == month ) {
00186       activateAction = monthAction;
00187     }
00188   }
00189   if ( activateAction ) {
00190     menu->setActiveAction( activateAction );
00191   }
00192   QAction *selectedAct = menu->exec( mMonth->mapToGlobal( QPoint( 0, 0 ) ) );
00193   if ( selectedAct && ( selectedAct != activateAction ) ) {
00194     for ( i=0; i < months; i++ ) {
00195       if ( act[i] == selectedAct ) {
00196         emit goMonth( i + 1 );
00197       }
00198     }
00199   }
00200   qDeleteAll( act );
00201   act.clear();
00202   delete menu;
00203 }
00204 
00205 void NavigatorBar::selectYear()
00206 {
00207   const KCalendarSystem *calSys = KOGlobals::self()->calendarSystem();
00208 
00209   int i;
00210   int year = calSys->year( mDate );
00211   int years = 11;  // odd number (show a few years ago -> a few years from now)
00212   int minYear = year - ( years / 3 );
00213 
00214   QMenu *menu = new QMenu( mYear );
00215   QList<QAction *>act;
00216 
00217   QString yearStr;
00218   QAction *activateAction = 0;
00219   int y = minYear;
00220   for ( i=0; i < years; i++ ) {
00221     QAction *yearAction = menu->addAction( yearStr.setNum( y ) );
00222     act.append( yearAction );
00223     if ( y == year ) {
00224       activateAction = yearAction;
00225     }
00226     y++;
00227   }
00228   if ( activateAction ) {
00229     menu->setActiveAction( activateAction );
00230   }
00231   QAction *selectedAct = menu->exec( mYear->mapToGlobal( QPoint( 0, 0 ) ) );
00232   if ( selectedAct && ( selectedAct != activateAction ) ) {
00233     int y = minYear;
00234     for ( i=0; i < years; ++i ) {
00235       if ( act[i] == selectedAct ) {
00236         emit goYear( y );
00237       }
00238       y++;
00239     }
00240   }
00241   qDeleteAll( act );
00242   act.clear();
00243   delete menu;
00244 }
00245 
00246 QToolButton *NavigatorBar::createNavigationButton( const QString &icon,
00247                                                    const QString &toolTip,
00248                                                    const QString &whatsThis )
00249 {
00250   QToolButton *button = new QToolButton( this );
00251 
00252   button->setIcon(
00253     KIconLoader::global()->loadIcon( icon, KIconLoader::Desktop, KIconLoader::SizeSmall ) );
00254   button->setIconSize( QSize( KIconLoader::SizeSmall, KIconLoader::SizeSmall ) );
00255   button->setToolButtonStyle( Qt::ToolButtonIconOnly );
00256   button->setToolTip( toolTip );
00257   button->setWhatsThis( whatsThis );
00258 
00259   return button;
00260 }
00261 
00262 #include "navigatorbar.moc"
korganizer

navigatorbar.cpp

korganizer

kdepim
