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tdelibs/kdeui/keditlistbox.cpp

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/* This file is part of the KDE libraries
Copyright (C) 2000 David Faure <faure@kde.org>, Alexander Neundorf <neundorf@kde.org>
2000, 2002 Carsten Pfeiffer <pfeiffer@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <tqstringlist.h>
#include <tqpushbutton.h>
#include <tqlayout.h>
#include <tqgroupbox.h>
#include <tqlistbox.h>
#include <tqwhatsthis.h>
#include <tqlabel.h>
#include <kcombobox.h>
#include <kdebug.h>
#include <kdialog.h>
#include <klineedit.h>
#include <klocale.h>
#include <kapplication.h>
#include <knotifyclient.h>
#include "keditlistbox.h"
#include <assert.h>
class KEditListBoxPrivate
{
public:
bool m_checkAtEntering;
uint buttons;
};
KEditListBox::KEditListBox(TQWidget *parent, const char *name,
bool checkAtEntering, int buttons )
:TQGroupBox(parent, name ), d(new KEditListBoxPrivate)
{
init( checkAtEntering, buttons );
}
KEditListBox::KEditListBox(const TQString& title, TQWidget *parent,
const char *name, bool checkAtEntering, int buttons)
:TQGroupBox(title, parent, name ), d(new KEditListBoxPrivate)
{
init( checkAtEntering, buttons );
}
KEditListBox::KEditListBox(const TQString& title, const CustomEditor& custom,
TQWidget *parent, const char *name,
bool checkAtEntering, int buttons)
:TQGroupBox(title, parent, name ), d(new KEditListBoxPrivate)
{
m_lineEdit = custom.lineEdit();
init( checkAtEntering, buttons, custom.representationWidget() );
}
KEditListBox::~KEditListBox()
{
delete d;
}
void KEditListBox::init( bool checkAtEntering, int buttons,
TQWidget *representationWidget )
{
d->m_checkAtEntering = checkAtEntering;
servNewButton = servRemoveButton = servUpButton = servDownButton = 0L;
setSizePolicy(TQSizePolicy(TQSizePolicy::MinimumExpanding,
TQSizePolicy::MinimumExpanding));
TQGridLayout * grid = new TQGridLayout(this, 7, 2,
KDialog::marginHint(),
KDialog::spacingHint());
grid->addRowSpacing(0, fontMetrics().lineSpacing());
grid->setRowStretch( 6, 1 );
grid->setMargin(15);
if ( representationWidget )
representationWidget->reparent( this, TQPoint(0,0) );
else
m_lineEdit=new KLineEdit(this);
m_listBox = new TQListBox(this);
TQWidget *editingWidget = representationWidget ?
representationWidget : m_lineEdit;
grid->addMultiCellWidget(editingWidget,1,1,0,1);
grid->addMultiCellWidget(m_listBox, 2, 6, 0, 0);
d->buttons = 0;
setButtons( buttons );
connect(m_lineEdit,TQT_SIGNAL(textChanged(const TQString&)),this,TQT_SLOT(typedSomething(const TQString&)));
m_lineEdit->setTrapReturnKey(true);
connect(m_lineEdit,TQT_SIGNAL(returnPressed()),this,TQT_SLOT(addItem()));
connect(m_listBox, TQT_SIGNAL(highlighted(int)), TQT_SLOT(enableMoveButtons(int)));
// maybe supplied lineedit has some text already
typedSomething( m_lineEdit->text() );
}
void KEditListBox::setButtons( uint buttons )
{
if ( d->buttons == buttons )
return;
TQGridLayout* grid = static_cast<TQGridLayout *>( layout() );
if ( ( buttons & Add ) && !servNewButton ) {
servNewButton = new TQPushButton(i18n("&Add"), this);
servNewButton->setEnabled(false);
servNewButton->show();
connect(servNewButton, TQT_SIGNAL(clicked()), TQT_SLOT(addItem()));
grid->addWidget(servNewButton, 2, 1);
} else if ( ( buttons & Add ) == 0 && servNewButton ) {
delete servNewButton;
servNewButton = 0;
}
if ( ( buttons & Remove ) && !servRemoveButton ) {
servRemoveButton = new TQPushButton(i18n("&Remove"), this);
servRemoveButton->setEnabled(false);
servRemoveButton->show();
connect(servRemoveButton, TQT_SIGNAL(clicked()), TQT_SLOT(removeItem()));
grid->addWidget(servRemoveButton, 3, 1);
} else if ( ( buttons & Remove ) == 0 && servRemoveButton ) {
delete servRemoveButton;
servRemoveButton = 0;
}
if ( ( buttons & UpDown ) && !servUpButton ) {
servUpButton = new TQPushButton(i18n("Move &Up"), this);
servUpButton->setEnabled(false);
servUpButton->show();
connect(servUpButton, TQT_SIGNAL(clicked()), TQT_SLOT(moveItemUp()));
servDownButton = new TQPushButton(i18n("Move &Down"), this);
servDownButton->setEnabled(false);
servDownButton->show();
connect(servDownButton, TQT_SIGNAL(clicked()), TQT_SLOT(moveItemDown()));
grid->addWidget(servUpButton, 4, 1);
grid->addWidget(servDownButton, 5, 1);
} else if ( ( buttons & UpDown ) == 0 && servUpButton ) {
delete servUpButton; servUpButton = 0;
delete servDownButton; servDownButton = 0;
}
d->buttons = buttons;
}
void KEditListBox::typedSomething(const TQString& text)
{
if(currentItem() >= 0) {
if(currentText() != m_lineEdit->text())
{
// IMHO changeItem() shouldn't do anything with the value
// of currentItem() ... like changing it or emitting signals ...
// but TT disagree with me on this one (it's been that way since ages ... grrr)
bool block = m_listBox->signalsBlocked();
m_listBox->blockSignals( true );
m_listBox->changeItem(text, currentItem());
m_listBox->blockSignals( block );
emit changed();
}
}
if ( !servNewButton )
return;
if (!d->m_checkAtEntering)
servNewButton->setEnabled(!text.isEmpty());
else
{
if (text.isEmpty())
{
servNewButton->setEnabled(false);
}
else
{
StringComparisonMode mode = (StringComparisonMode) (ExactMatch | CaseSensitive );
bool enable = (!m_listBox->findItem( text, mode ));
servNewButton->setEnabled( enable );
}
}
}
void KEditListBox::moveItemUp()
{
if (!m_listBox->isEnabled())
{
KNotifyClient::beep();
return;
}
const unsigned int selIndex = m_listBox->currentItem();
if (selIndex == 0)
{
KNotifyClient::beep();
return;
}
TQListBoxItem *selItem = m_listBox->item(selIndex);
m_listBox->takeItem(selItem);
m_listBox->insertItem(selItem, selIndex-1);
m_listBox->setCurrentItem(selIndex - 1);
emit changed();
}
void KEditListBox::moveItemDown()
{
if (!m_listBox->isEnabled())
{
KNotifyClient::beep();
return;
}
unsigned int selIndex = m_listBox->currentItem();
if (selIndex == m_listBox->count() - 1)
{
KNotifyClient::beep();
return;
}
TQListBoxItem *selItem = m_listBox->item(selIndex);
m_listBox->takeItem(selItem);
m_listBox->insertItem(selItem, selIndex+1);
m_listBox->setCurrentItem(selIndex + 1);
emit changed();
}
void KEditListBox::addItem()
{
// when m_checkAtEntering is true, the add-button is disabled, but this
// slot can still be called through Key_Return/Key_Enter. So we guard
// against this.
if ( !servNewButton || !servNewButton->isEnabled() )
return;
const TQString& currentTextLE=m_lineEdit->text();
bool alreadyInList(false);
//if we didn't check for dupes at the inserting we have to do it now
if (!d->m_checkAtEntering)
{
// first check current item instead of dumb iterating the entire list
if ( m_listBox->currentText() == currentTextLE )
alreadyInList = true;
else
{
StringComparisonMode mode = (StringComparisonMode) (ExactMatch | CaseSensitive );
alreadyInList =(m_listBox->findItem(currentTextLE, mode) );
}
}
if ( servNewButton )
servNewButton->setEnabled(false);
bool block = m_lineEdit->signalsBlocked();
m_lineEdit->blockSignals(true);
m_lineEdit->clear();
m_lineEdit->blockSignals(block);
m_listBox->setSelected(currentItem(), false);
if (!alreadyInList)
{
block = m_listBox->signalsBlocked();
m_listBox->blockSignals( true );
m_listBox->insertItem(currentTextLE);
m_listBox->blockSignals( block );
emit changed();
emit added( currentTextLE );
}
}
int KEditListBox::currentItem() const
{
int nr = m_listBox->currentItem();
if(nr >= 0 && !m_listBox->item(nr)->isSelected()) return -1;
return nr;
}
void KEditListBox::removeItem()
{
int selected = m_listBox->currentItem();
if ( selected >= 0 )
{
TQString removedText = m_listBox->currentText();
m_listBox->removeItem( selected );
if ( count() > 0 )
m_listBox->setSelected( QMIN( selected, count() - 1 ), true );
emit changed();
emit removed( removedText );
}
if ( servRemoveButton && m_listBox->currentItem() == -1 )
servRemoveButton->setEnabled(false);
}
void KEditListBox::enableMoveButtons(int index)
{
// Update the lineEdit when we select a different line.
if(currentText() != m_lineEdit->text())
m_lineEdit->setText(currentText());
bool moveEnabled = servUpButton && servDownButton;
if (moveEnabled )
{
if (m_listBox->count() <= 1)
{
servUpButton->setEnabled(false);
servDownButton->setEnabled(false);
}
else if ((uint) index == (m_listBox->count() - 1))
{
servUpButton->setEnabled(true);
servDownButton->setEnabled(false);
}
else if (index == 0)
{
servUpButton->setEnabled(false);
servDownButton->setEnabled(true);
}
else
{
servUpButton->setEnabled(true);
servDownButton->setEnabled(true);
}
}
if ( servRemoveButton )
servRemoveButton->setEnabled(true);
}
void KEditListBox::clear()
{
m_lineEdit->clear();
m_listBox->clear();
emit changed();
}
void KEditListBox::insertStringList(const TQStringList& list, int index)
{
m_listBox->insertStringList(list,index);
}
void KEditListBox::insertStrList(const TQStrList* list, int index)
{
m_listBox->insertStrList(list,index);
}
void KEditListBox::insertStrList(const TQStrList& list, int index)
{
m_listBox->insertStrList(list,index);
}
void KEditListBox::insertStrList(const char ** list, int numStrings, int index)
{
m_listBox->insertStrList(list,numStrings,index);
}
TQStringList KEditListBox::items() const
{
TQStringList list;
for (TQListBoxItem const * i = m_listBox->firstItem(); i != 0; i = i->next() )
list.append( i->text());
return list;
}
void KEditListBox::setItems(const TQStringList& items)
{
m_listBox->clear();
m_listBox->insertStringList(items, 0);
}
int KEditListBox::buttons() const
{
return d->buttons;
}
void KEditListBox::virtual_hook( int, void* )
{ /*BASE::virtual_hook( id, data );*/ }
///////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////
KEditListBox::CustomEditor::CustomEditor( KComboBox *combo )
{
m_representationWidget = combo;
m_lineEdit = dynamic_cast<KLineEdit*>( combo->lineEdit() );
assert( m_lineEdit );
}
#include "keditlistbox.moc"