karm

ktimewidget.cpp

00001 #include <stdlib.h>             // abs()
00002 
00003 #include <qlabel.h>
00004 #include <qlayout.h>
00005 #include <qlineedit.h>
00006 #include <qstring.h>
00007 #include <qvalidator.h>
00008 #include <qwidget.h>
00009 
00010 #include <klocale.h>            // i18n
00011 #include "ktimewidget.h"
00012 
00013 enum ValidatorType { HOUR, MINUTE };
00014 
00015 class TimeValidator : public QValidator
00016 {
00017   public:
00018     TimeValidator( ValidatorType tp, QWidget *parent=0, const char *name=0)
00019       : QValidator(parent, name)
00020     {
00021       _tp = tp;
00022     }
00023     State validate(QString &str, int &) const
00024     {
00025       if (str.isEmpty())
00026         return Acceptable;
00027 
00028       bool ok;
00029       int val = str.toInt( &ok );
00030       if ( ! ok )
00031         return Invalid;
00032 
00033       if ( _tp==MINUTE && val >= 60  )
00034         return Invalid;
00035       else
00036         return Acceptable;
00037     }
00038 
00039   public:
00040     ValidatorType _tp;
00041 };
00042 
00043 
00044 class KarmLineEdit : public QLineEdit
00045 {
00046 
00047   public:
00048     KarmLineEdit( QWidget* parent, const char* name = 0 )
00049       : QLineEdit( parent, name ) {}
00050 
00051 protected:
00052 
00053   virtual void keyPressEvent( QKeyEvent *event )
00054   {
00055     QLineEdit::keyPressEvent( event );
00056     if ( text().length() == 2 && !event->text().isEmpty() )
00057       focusNextPrevChild(true);
00058   }
00059 };
00060 
00061 
00062 KArmTimeWidget::KArmTimeWidget( QWidget* parent, const char* name )
00063   : QWidget(parent, name)
00064 {
00065   QHBoxLayout *layout = new QHBoxLayout(this);
00066 
00067   _hourLE = new QLineEdit( this);
00068   // 9999 hours > 1 year!
00069   // 999 hours = 41 days  (That should be enough ...)
00070   _hourLE->setFixedWidth( fontMetrics().maxWidth() * 3
00071                           + 2 * _hourLE->frameWidth() + 2);
00072   layout->addWidget(_hourLE);
00073   TimeValidator *validator = new TimeValidator( HOUR, _hourLE,
00074                                                 "Validator for _hourLE");
00075   _hourLE->setValidator( validator );
00076   _hourLE->setAlignment( Qt::AlignRight );
00077 
00078 
00079   QLabel *hr = new QLabel( i18n( "abbreviation for hours", " hr. " ), this );
00080   layout->addWidget( hr );
00081 
00082   _minuteLE = new KarmLineEdit(this);
00083 
00084   // Minutes lineedit: Make room for 2 digits
00085   _minuteLE->setFixedWidth( fontMetrics().maxWidth() * 2
00086                             + 2 * _minuteLE->frameWidth() + 2);
00087   layout->addWidget(_minuteLE);
00088   validator = new TimeValidator( MINUTE, _minuteLE, "Validator for _minuteLE");
00089   _minuteLE->setValidator( validator );
00090   _minuteLE->setMaxLength(2);
00091   _minuteLE->setAlignment( Qt::AlignRight );
00092 
00093   QLabel *min = new QLabel( i18n( "abbreviation for minutes", " min. " ), this );
00094   layout->addWidget( min );
00095 
00096   layout->addStretch(1);
00097   setFocusProxy( _hourLE );
00098 }
00099 
00100 void KArmTimeWidget::setTime( int hour, int minute )
00101 {
00102   QString dummy;
00103 
00104   dummy.setNum( hour );
00105   _hourLE->setText( dummy );
00106 
00107   dummy.setNum( abs(minute) );
00108   if (abs(minute) < 10 ) {
00109     dummy = QString::fromLatin1( "0" ) + dummy;
00110   }
00111   _minuteLE->setText( dummy );
00112 }
00113 
00114 long KArmTimeWidget::time() const
00115 {
00116   bool ok;
00117   int h, m;
00118 
00119   h = _hourLE->text().toInt( &ok );
00120   m = _minuteLE->text().toInt( &ok );
00121 
00122   // if h is negative, we have to *subtract* m
00123   return h * 60 + ( ( h < 0) ? -1 : 1 ) * m;
00124 }
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