void FontGrid::mousePressEvent(QMouseEvent *e)
{
int letter = getLetter(e->pos());
if(letter < _letterCountH*_letterCountV) {
setLetter(letter);
emit letterClicked(letter);
}
setFocus();
}
void FontGrid::keyPressEvent(QKeyEvent *e)
{
int letter;
switch(e->key()) {
case Qt::Key_Left:
letter = _letter - 1;
if(letter >= 0) {
setLetter(letter);
emit letterClicked(letter);
}
break;
case Qt::Key_Right:
letter = _letter + 1;
if(letter < _letterCountH*_letterCountV) {
setLetter(letter);
emit letterClicked(letter);
}
break;
case Qt::Key_Up:
letter = _letter - _letterCountH;
if(letter >= 0) {
setLetter(letter);
emit letterClicked(letter);
}
break;
case Qt::Key_Down:
letter = _letter + _letterCountH;
if(letter < _letterCountH*_letterCountV) {
setLetter(letter);
emit letterClicked(letter);
}
break;
}
QWidget::keyPressEvent(e);
}
void JumpButtonBar::updateButtons()
{
int currentButton = mGroupBox->selectedId();
// the easiest way to remove all buttons ;)
mButtons.setAutoDelete( true );
mButtons.clear();
mButtons.setAutoDelete( false );
QStringList characters;
// calculate how many buttons are possible
QFontMetrics fm = fontMetrics();
QPushButton *btn = new QPushButton( "", this );
btn->hide();
QSize buttonSize = style().sizeFromContents( QStyle::CT_PushButton, btn,
fm.size( ShowPrefix, "X - X") ).
expandedTo( QApplication::globalStrut() );
delete btn;
int buttonHeight = buttonSize.height() + 8;
uint possibleButtons = (height() / buttonHeight) - 1;
QString character;
KABC::AddressBook *ab = mCore->addressBook();
KABC::AddressBook::Iterator it;
for ( it = ab->begin(); it != ab->end(); ++it ) {
KABC::Field *field = 0;
field = mCore->currentSortField();
if ( field ) {
setEnabled( true );
if ( !field->value( *it ).isEmpty() )
character = field->value( *it )[ 0 ].lower();
} else {
setEnabled( false );
return;
}
if ( !character.isEmpty() && !characters.contains( character ) )
characters.append( character );
}
sortListLocaleAware( characters );
if ( characters.count() <= possibleButtons ) {
// at first the easy case: all buttons fits in window
for ( uint i = 0; i < characters.count(); ++i ) {
JumpButton *button = new JumpButton( characters[ i ], QString::null,
mGroupBox );
connect( button, SIGNAL( clicked() ), this, SLOT( letterClicked() ) );
mButtons.append( button );
button->show();
}
} else {
if ( possibleButtons == 0 ) // to avoid crashes on startup
return;
int offset = characters.count() / possibleButtons;
int odd = characters.count() % possibleButtons;
if ( odd )
offset++;
int current = 0;
for ( uint i = 0; i < possibleButtons; ++i ) {
if ( characters.count() - current == 0 )
continue;
if ( characters.count() - current <= possibleButtons - i ) {
JumpButton *button = new JumpButton( characters[ current ],
QString::null, mGroupBox );
connect( button, SIGNAL( clicked() ), this, SLOT( letterClicked() ) );
mButtons.append( button );
button->show();
current++;
} else {
int pos = ( current + offset >= (int)characters.count() ?
characters.count() - 1 : current + offset - 1 );
QString range;
for ( int j = current; j < pos + 1; ++j )
range.append( characters[ j ] );
JumpButton *button = new JumpButton( characters[ current ],
characters[ pos ], mGroupBox );
connect( button, SIGNAL( clicked() ), this, SLOT( letterClicked() ) );
mButtons.append( button );
button->show();
current = ( i + 1 ) * offset;
}
}
}
if ( currentButton != -1 )
mGroupBox->setButton( currentButton );
else
mGroupBox->setButton( 0 );
int maxWidth = 0;
QPushButton *button;
for ( button = mButtons.first(); button; button = mButtons.next() )
maxWidth = QMAX( maxWidth, button->sizeHint().width() );
setFixedWidth( maxWidth );
}