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tdevelop/kdevdesigner/designer/connectionitems.cpp

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/**********************************************************************
** Copyright (C) 2002 Trolltech AS. All rights reserved.
**
** This file is part of Qt Designer.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
** licenses may use this file in accordance with the Qt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#include "connectionitems.h"
#include "formwindow.h"
#include "mainwindow.h"
#include "metadatabase.h"
#include "widgetfactory.h"
#include "project.h"
#include <qpainter.h>
#include <qcombobox.h>
#include <qmetaobject.h>
#include <qcombobox.h>
#include <qlistbox.h>
#include <qaction.h>
#include <qdatabrowser.h>
static const char* const ignore_slots[] = {
"destroyed()",
"setCaption(const QString&)",
"setIcon(const QPixmap&)",
"setIconText(const QString&)",
"setMouseTracking(bool)",
"clearFocus()",
"setUpdatesEnabled(bool)",
"update()",
"update(int,int,int,int)",
"update(const QRect&)",
"repaint()",
"repaint(bool)",
"repaint(int,int,int,int,bool)",
"repaint(const QRect&,bool)",
"repaint(const QRegion&,bool)",
"show()",
"hide()",
"iconify()",
"showMinimized()",
"showMaximized()",
"showFullScreen()",
"showNormal()",
"polish()",
"constPolish()",
"raise()",
"lower()",
"stackUnder(QWidget*)",
"move(int,int)",
"move(const QPoint&)",
"resize(int,int)",
"resize(const QSize&)",
"setGeometry(int,int,int,int)",
"setGeometry(const QRect&)",
"focusProxyDestroyed()",
"showExtension(bool)",
"setUpLayout()",
"showDockMenu(const QPoint&)",
"init()",
"destroy()",
"deleteLater()",
0
};
ConnectionItem::ConnectionItem( QTable *table, FormWindow *fw )
: QComboTableItem( table, QStringList(), FALSE ), formWindow( fw ), conn( 0 )
{
setReplaceable( FALSE );
}
void ConnectionItem::senderChanged( QObject * )
{
emit changed();
QWidget *w = table()->cellWidget( row(), col() );
if ( w )
setContentFromEditor( w );
}
void ConnectionItem::receiverChanged( QObject * )
{
emit changed();
QWidget *w = table()->cellWidget( row(), col() );
if ( w )
setContentFromEditor( w );
}
void ConnectionItem::signalChanged( const QString & )
{
emit changed();
QWidget *w = table()->cellWidget( row(), col() );
if ( w )
setContentFromEditor( w );
}
void ConnectionItem::slotChanged( const QString & )
{
emit changed();
QWidget *w = table()->cellWidget( row(), col() );
if ( w )
setContentFromEditor( w );
}
void ConnectionItem::setSender( SenderItem *i )
{
connect( i, SIGNAL( currentSenderChanged( QObject * ) ),
this, SLOT( senderChanged( QObject * ) ) );
}
void ConnectionItem::setReceiver( ReceiverItem *i )
{
connect( i, SIGNAL( currentReceiverChanged( QObject * ) ),
this, SLOT( receiverChanged( QObject * ) ) );
}
void ConnectionItem::setSignal( SignalItem *i )
{
connect( i, SIGNAL( currentSignalChanged( const QString & ) ),
this, SLOT( signalChanged( const QString & ) ) );
}
void ConnectionItem::setSlot( SlotItem *i )
{
connect( i, SIGNAL( currentSlotChanged( const QString & ) ),
this, SLOT( slotChanged( const QString & ) ) );
}
void ConnectionItem::paint( QPainter *p, const QColorGroup &cg,
const QRect &cr, bool selected )
{
p->fillRect( 0, 0, cr.width(), cr.height(),
selected ? cg.brush( QColorGroup::Highlight )
: cg.brush( QColorGroup::Base ) );
int w = cr.width();
int h = cr.height();
int x = 0;
if ( currentText()[0] == '<' )
p->setPen( QObject::red );
else if ( selected )
p->setPen( cg.highlightedText() );
else
p->setPen( cg.text() );
QFont f( p->font() );
QFont oldf( p->font() );
if ( conn && conn->isModified() ) {
f.setBold( TRUE );
p->setFont( f );
}
p->drawText( x + 2, 0, w - x - 4, h, alignment(), currentText() );
p->setFont( oldf );
}
void ConnectionItem::setConnection( ConnectionContainer *c )
{
conn = c;
}
// ------------------------------------------------------------------
static void appendChildActions( QAction *action, QStringList &lst )
{
QObjectListIt it( *action->children() );
while ( it.current() ) {
QObject *o = it.current();
++it;
if ( !::qt_cast<QAction*>(o) )
continue;
lst << o->name();
if ( o->children() && ::qt_cast<QActionGroup*>(o) )
appendChildActions( (QAction*)o, lst );
}
}
static QStringList flatActions( const QPtrList<QAction> &l )
{
QStringList lst;
QPtrListIterator<QAction> it( l );
while ( it.current() ) {
QAction *action = it.current();
lst << action->name();
if ( action->children() && ::qt_cast<QActionGroup*>(action) )
appendChildActions( action, lst );
++it;
}
return lst;
}
// ------------------------------------------------------------------
SenderItem::SenderItem( QTable *table, FormWindow *fw )
: ConnectionItem( table, fw )
{
QStringList lst;
QPtrDictIterator<QWidget> it( *formWindow->widgets() );
while ( it.current() ) {
if ( lst.find( it.current()->name() ) != lst.end() ) {
++it;
continue;
}
if ( !QString( it.current()->name() ).startsWith( "qt_dead_widget_" ) &&
!::qt_cast<QLayoutWidget*>(it.current()) &&
!::qt_cast<Spacer*>(it.current()) &&
!::qt_cast<SizeHandle*>(it.current()) &&
qstrcmp( it.current()->name(), "central widget" ) != 0 ) {
lst << it.current()->name();
}
++it;
}
lst += flatActions( formWindow->actionList() );
lst.prepend( "<No Sender>" );
lst.sort();
setStringList( lst );
}
QWidget *SenderItem::createEditor() const
{
QComboBox *cb = (QComboBox*)ConnectionItem::createEditor();
cb->listBox()->setMinimumWidth( cb->fontMetrics().width( "01234567890123456789012345678901234567890123456789" ) );
connect( cb, SIGNAL( activated( const QString & ) ),
this, SLOT( senderChanged( const QString & ) ) );
return cb;
}
void SenderItem::setSenderEx( QObject *sender )
{
setCurrentItem( sender->name() );
emit currentSenderChanged( sender );
}
void SenderItem::senderChanged( const QString &sender )
{
QObject *o = formWindow->child( sender, "QObject" );
if ( !o )
o = formWindow->findAction( sender );
if ( !o )
return;
emit currentSenderChanged( o );
}
// ------------------------------------------------------------------
ReceiverItem::ReceiverItem( QTable *table, FormWindow *fw )
: ConnectionItem( table, fw )
{
QStringList lst;
QPtrDictIterator<QWidget> it( *formWindow->widgets() );
while ( it.current() ) {
if ( lst.find( it.current()->name() ) != lst.end() ) {
++it;
continue;
}
if ( !QString( it.current()->name() ).startsWith( "qt_dead_widget_" ) &&
!::qt_cast<QLayoutWidget*>(it.current()) &&
!::qt_cast<Spacer*>(it.current()) &&
!::qt_cast<SizeHandle*>(it.current()) &&
qstrcmp( it.current()->name(), "central widget" ) != 0 ) {
lst << it.current()->name();
}
++it;
}
lst += flatActions( formWindow->actionList() );
lst.prepend( "<No Receiver>" );
lst.sort();
setStringList( lst );
}
QWidget *ReceiverItem::createEditor() const
{
QComboBox *cb = (QComboBox*)ConnectionItem::createEditor();
cb->listBox()->setMinimumWidth( cb->fontMetrics().width( "01234567890123456789012345678901234567890123456789" ) );
connect( cb, SIGNAL( activated( const QString & ) ),
this, SLOT( receiverChanged( const QString & ) ) );
return cb;
}
void ReceiverItem::setReceiverEx( QObject *receiver )
{
setCurrentItem( receiver->name() );
emit currentReceiverChanged( receiver );
}
void ReceiverItem::receiverChanged( const QString &receiver )
{
QObject *o = formWindow->child( receiver, "QObject" );
if ( !o )
o = formWindow->findAction( receiver );
if ( !o )
return;
emit currentReceiverChanged( o );
}
// ------------------------------------------------------------------
SignalItem::SignalItem( QTable *table, FormWindow *fw )
: ConnectionItem( table, fw )
{
QStringList lst;
lst << "<No Signal>";
lst.sort();
setStringList( lst );
}
void SignalItem::senderChanged( QObject *sender )
{
QStrList sigs = sender->metaObject()->signalNames( TRUE );
sigs.remove( "destroyed()" );
sigs.remove( "destroyed(QObject*)" );
sigs.remove( "accessibilityChanged(int)" );
sigs.remove( "accessibilityChanged(int,int)" );
QStringList lst = QStringList::fromStrList( sigs );
if ( ::qt_cast<CustomWidget*>(sender) ) {
MetaDataBase::CustomWidget *w = ( (CustomWidget*)sender )->customWidget();
for ( QValueList<QCString>::Iterator it = w->lstSignals.begin();
it != w->lstSignals.end(); ++it )
lst << MetaDataBase::normalizeFunction( *it );
}
if ( sender == formWindow->mainContainer() ) {
QStringList extra = MetaDataBase::signalList( formWindow );
if ( !extra.isEmpty() )
lst += extra;
}
lst.prepend( "<No Signal>" );
lst.sort();
setStringList( lst );
ConnectionItem::senderChanged( sender );
}
QWidget *SignalItem::createEditor() const
{
QComboBox *cb = (QComboBox*)ConnectionItem::createEditor();
cb->listBox()->setMinimumWidth( cb->fontMetrics().width( "01234567890123456789012345678901234567890123456789" ) );
connect( cb, SIGNAL( activated( const QString & ) ),
this, SIGNAL( currentSignalChanged( const QString & ) ) );
return cb;
}
// ------------------------------------------------------------------
SlotItem::SlotItem( QTable *table, FormWindow *fw )
: ConnectionItem( table, fw )
{
QStringList lst;
lst << "<No Slot>";
lst.sort();
setStringList( lst );
lastReceiver = 0;
lastSignal = "<No Signal>";
}
void SlotItem::receiverChanged( QObject *receiver )
{
lastReceiver = receiver;
updateSlotList();
ConnectionItem::receiverChanged( receiver );
}
void SlotItem::signalChanged( const QString &signal )
{
lastSignal = signal;
updateSlotList();
ConnectionItem::signalChanged( signal );
}
bool SlotItem::ignoreSlot( const char* slot ) const
{
#ifndef QT_NO_SQL
if ( qstrcmp( slot, "update()" ) == 0 &&
::qt_cast<QDataBrowser*>(lastReceiver) )
return FALSE;
#endif
for ( int i = 0; ignore_slots[i]; i++ ) {
if ( qstrcmp( slot, ignore_slots[i] ) == 0 )
return TRUE;
}
if ( !formWindow->isMainContainer( (QWidget*)lastReceiver ) ) {
if ( qstrcmp( slot, "close()" ) == 0 )
return TRUE;
}
if ( qstrcmp( slot, "setFocus()" ) == 0 )
if ( lastReceiver->isWidgetType() &&
( (QWidget*)lastReceiver )->focusPolicy() == QWidget::NoFocus )
return TRUE;
return FALSE;
}
void SlotItem::updateSlotList()
{
QStringList lst;
if ( !lastReceiver || lastSignal == "<No Signal>" ) {
lst << "<No Slot>";
lst.sort();
setStringList( lst );
return;
}
QString signal = MetaDataBase::normalizeFunction( lastSignal );
int n = lastReceiver->metaObject()->numSlots( TRUE );
QStringList slts;
for( int i = 0; i < n; ++i ) {
// accept only public slots. For the form window, also accept protected slots
const QMetaData* md = lastReceiver->metaObject()->slot( i, TRUE );
if ( ( (lastReceiver->metaObject()->slot( i, TRUE )->access == QMetaData::Public) ||
(formWindow->isMainContainer( (QWidget*)lastReceiver ) &&
lastReceiver->metaObject()->slot(i, TRUE)->access ==
QMetaData::Protected) ) &&
!ignoreSlot( md->name ) &&
checkConnectArgs( signal.latin1(), lastReceiver, md->name ) )
if ( lst.find( md->name ) == lst.end() )
lst << MetaDataBase::normalizeFunction( md->name );
}
LanguageInterface *iface =
MetaDataBase::languageInterface( formWindow->project()->language() );
if ( !iface || iface->supports( LanguageInterface::ConnectionsToCustomSlots ) ) {
if ( formWindow->isMainContainer( (QWidget*)lastReceiver ) ) {
QValueList<MetaDataBase::Function> moreSlots = MetaDataBase::slotList( formWindow );
if ( !moreSlots.isEmpty() ) {
for ( QValueList<MetaDataBase::Function>::Iterator it = moreSlots.begin();
it != moreSlots.end(); ++it ) {
QCString s = (*it).function;
if ( !s.data() )
continue;
s = MetaDataBase::normalizeFunction( s );
if ( checkConnectArgs( signal.latin1(), lastReceiver, s ) ) {
if ( lst.find( (*it).function ) == lst.end() )
lst << s;
}
}
}
}
}
if ( ::qt_cast<CustomWidget*>(lastReceiver) ) {
MetaDataBase::CustomWidget *w = ( (CustomWidget*)lastReceiver )->customWidget();
for ( QValueList<MetaDataBase::Function>::Iterator it = w->lstSlots.begin();
it != w->lstSlots.end(); ++it ) {
QCString s = (*it).function;
if ( !s.data() )
continue;
s = MetaDataBase::normalizeFunction( s );
if ( checkConnectArgs( signal.latin1(), lastReceiver, s ) ) {
if ( lst.find( (*it).function ) == lst.end() )
lst << s;
}
}
}
lst.prepend( "<No Slot>" );
lst.sort();
setStringList( lst );
}
QWidget *SlotItem::createEditor() const
{
QComboBox *cb = (QComboBox*)ConnectionItem::createEditor();
cb->listBox()->setMinimumWidth( cb->fontMetrics().width( "01234567890123456789012345678901234567890123456789" ) );
connect( cb, SIGNAL( activated( const QString & ) ),
this, SIGNAL( currentSlotChanged( const QString & ) ) );
return cb;
}
void SlotItem::customSlotsChanged()
{
QString currSlot = currentText();
updateSlotList();
setCurrentItem( "<No Slot>" );
setCurrentItem( currSlot );
emit currentSlotChanged( currentText() );
}