mainwindow.cpp

Linux下的基于X11的图形开发环境。

	source = QString( WidgetFactory::classNameOf( propertyEditor->widget() ) ).lower() + ".html#details";
    }

    if ( !source.isEmpty() )
	assistant->showPage( documentationPath() + source );
}

void MainWindow::helpManual()
{
    assistant->showPage( documentationPath() + "/designer-manual.html" );
}

void MainWindow::helpAbout()
{
    AboutDialog dlg( this, 0, TRUE );
    if ( singleProjectMode() ) {
	dlg.aboutPixmap->setText( "" );
	dlg.aboutVersion->setText( "" );
	dlg.aboutCopyright->setText( "" );
	LanguageInterface *iface = MetaDataBase::languageInterface( eProject->language() );
	dlg.aboutLicense->setText( iface->aboutText() );
    }
    dlg.resize( dlg.width(), dlg.layout()->heightForWidth(dlg.width()) );
    dlg.exec();
}

void MainWindow::helpAboutQt()
{
    QMessageBox::aboutQt( this, "Qt Designer" );
}

#if defined(_WS_WIN_)
#include <qt_windows.h>
#include <qprocess.h>
#endif

void MainWindow::helpRegister()
{
#if defined(_WS_WIN_)
    HKEY key;
    HKEY subkey;
    long res;
    DWORD type;
    DWORD size = 255;
    QString command;
    QString sub( "htmlfile\\shell" );
#if defined(UNICODE)
    if ( QApplication::winVersion() & Qt::WV_NT_based ) {
	unsigned char data[256];
	res = RegOpenKeyExW( HKEY_CLASSES_ROOT, NULL, 0, KEY_READ, &key );
	res = RegOpenKeyExW( key, (TCHAR*)sub.ucs2(), 0, KEY_READ, &subkey );
	res = RegQueryValueExW( subkey, NULL, NULL, &type, data, &size );
	command = qt_winQString( data ) + "\\command";
	size = 255;
	res = RegOpenKeyExW( subkey, (TCHAR*)command.ucs2(), 0, KEY_READ, &subkey );
	res = RegQueryValueExW( subkey, NULL, NULL, &type, data, &size );
	command = qt_winQString( data );
    } else
#endif
    {
	unsigned char data[256];
	res = RegOpenKeyExA( HKEY_CLASSES_ROOT, NULL, 0, KEY_READ, &key );
	res = RegOpenKeyExA( key, sub.local8Bit(), 0, KEY_READ, &subkey );
	res = RegQueryValueExA( subkey, NULL, NULL, &type, data, &size );
	command = QString::fromLocal8Bit( (const char*) data ) + "\\command";
	size = 255;
	res = RegOpenKeyExA( subkey, command.local8Bit(), 0, KEY_READ, &subkey );
	res = RegQueryValueExA( subkey, NULL, NULL, &type, data, &size );
	command = QString::fromLocal8Bit( (const char*) data );
    }

    res = RegCloseKey( subkey );
    res = RegCloseKey( key );

    QProcess process( command + " www.trolltech.com/products/download/eval/evaluation.html" );
    if ( !process.start() )
	QMessageBox::information( this, "Register Qt", "Launching your web browser failed.\n"
	"To register Qt, point your browser to www.trolltech.com/products/download/eval/evaluation.html" );
#endif
}

void MainWindow::showProperties( QObject *o )
{
    if ( !o->isWidgetType() ) {
	propertyEditor->setWidget( o, lastActiveFormWindow );
	if ( lastActiveFormWindow )
	    hierarchyView->setFormWindow( lastActiveFormWindow, lastActiveFormWindow->mainContainer() );
	else
	    hierarchyView->setFormWindow( 0, 0 );
	return;
    }
    QWidget *w = (QWidget*)o;
    setupHierarchyView();
    FormWindow *fw = (FormWindow*)isAFormWindowChild( w );
    if ( fw ) {
	if ( fw->numSelectedWidgets() > 1 ) {
	    QWidgetList wl = fw->selectedWidgets();
	    if ( wl.first() != w ) {
		wl.removeRef( w );
		wl.insert( 0, w );
	    }
	    propertyEditor->setWidget( new PropertyObject( wl ), fw );
	} else {
	    propertyEditor->setWidget( w, fw );
	}
	hierarchyView->setFormWindow( fw, w );
    } else {
	propertyEditor->setWidget( 0, 0 );
	hierarchyView->setFormWindow( 0, 0 );
    }

    if ( currentTool() == POINTER_TOOL && fw &&
	 ( !qworkspace->activeWindow() || !qworkspace->activeWindow()->inherits( "SourceEditor" ) ) )
	fw->setFocus();
}

void MainWindow::resetTool()
{
    actionPointerTool->setOn( TRUE );
}

void MainWindow::updateProperties( QObject * )
{
    if ( propertyEditor )
	propertyEditor->refetchData();
}

bool MainWindow::eventFilter( QObject *o, QEvent *e )
{
    if ( !o || !e || !o->isWidgetType() )
	return QMainWindow::eventFilter( o, e );

    QWidget *w = 0;
    bool passiveInteractor;
    QWidget *ed = 0;
    switch ( e->type() ) {
    case QEvent::AccelOverride:
	if ( ( (QKeyEvent*)e )->key() == Key_F1 &&
	     ( ( (QKeyEvent*)e )->state() & ShiftButton ) != ShiftButton ) {
	    w = (QWidget*)o;
	    while ( w ) {
		if ( w->inherits( "PropertyList" ) )
		    break;
		w = w->parentWidget( TRUE );
	    }
	    if ( w ) {
		propertyEditor->propertyList()->showCurrentWhatsThis();
		( (QKeyEvent*)e )->accept();
		return TRUE;
	    }
	}
	break;
    case QEvent::Accel:
	if ( ( ( (QKeyEvent*)e )->key() == Key_A ||
	       ( (QKeyEvent*)e )->key() == Key_E ) &&
	     ( (QKeyEvent*)e )->state() & ControlButton ) {
	    if ( qWorkspace()->activeWindow() &&
		 qWorkspace()->activeWindow()->inherits( "SourceEditor" ) ) {
		( (QKeyEvent*)e )->ignore();
		return TRUE;
	    }
	}
	break;
    case QEvent::ContextMenu:
    case QEvent::MouseButtonPress:
	if ( o->inherits( "QDesignerPopupMenu" ) )
	    break;
	if ( o && currentTool() == POINTER_TOOL && ( o->inherits( "QDesignerMenuBar" ) ||
		    o->inherits( "QDesignerToolBar" ) ||
		    ( o->inherits( "QComboBox") || o->inherits( "QToolButton" ) || o->inherits( "QDesignerToolBarSeparator" ) ) &&
		    o->parent() && o->parent()->inherits( "QDesignerToolBar" ) ) ) {
	    QWidget *w = (QWidget*)o;
	    if ( w->inherits( "QToolButton" ) || w->inherits( "QComboBox" ) || w->inherits( "QDesignerToolBarSeparator" ) )
		w = w->parentWidget();
	    QWidget *pw = w->parentWidget();
	    while ( pw ) {
		if ( pw->inherits( "FormWindow" ) ) {
		    ( (FormWindow*)pw )->emitShowProperties( w );
		    if ( !o->inherits( "QDesignerToolBar" ) )
			return !o->inherits( "QToolButton" ) && !o->inherits( "QMenuBar" ) &&
			    !o->inherits( "QComboBox" ) && !o->inherits( "QDesignerToolBarSeparator" );
		}
		pw = pw->parentWidget();
	    }
	}
	if ( o && ( o->inherits( "QDesignerToolBar" ) || o->inherits( "QDockWindowHandle" ) )
	     && e->type() == QEvent::ContextMenu )
	    break;
	if ( isAToolBarChild( o ) && currentTool() != CONNECT_TOOL )
	    break;
	if ( o && o->inherits( "QSizeGrip" ) )
	    break;
	if ( !( w = isAFormWindowChild( o ) ) || o->inherits( "SizeHandle" ) || o->inherits( "OrderIndicator" ) )
	    break;
	if ( !w->hasFocus() )
	    w->setFocus();
	passiveInteractor = WidgetFactory::isPassiveInteractor( o );
	if ( !passiveInteractor || currentTool() != ORDER_TOOL ) {
	    if( e->type() == QEvent::ContextMenu ) {
		( (FormWindow*)w )->handleContextMenu( (QContextMenuEvent*)e,
						       ( (FormWindow*)w )->designerWidget( o ) );
		return TRUE;
	    } else {
		( (FormWindow*)w )->handleMousePress( (QMouseEvent*)e,
						      ( (FormWindow*)w )->designerWidget( o ) );
	    }
	}
	lastPressWidget = (QWidget*)o;
	if ( passiveInteractor )
	    QTimer::singleShot( 0, formWindow(), SLOT( visibilityChanged() ) );
	if ( currentTool() == CONNECT_TOOL )
	    return TRUE;
	return !passiveInteractor;
    case QEvent::MouseButtonRelease:
	lastPressWidget = 0;
	if ( isAToolBarChild( o )  && currentTool() != CONNECT_TOOL )
	    break;
	if ( o && o->inherits( "QSizeGrip" ) )
	    break;
	if ( !( w = isAFormWindowChild( o ) ) || o->inherits( "SizeHandle" ) || o->inherits( "OrderIndicator" ) )
	    break;
	passiveInteractor = WidgetFactory::isPassiveInteractor( o );
	if ( !passiveInteractor )
	    ( (FormWindow*)w )->handleMouseRelease( (QMouseEvent*)e, ( (FormWindow*)w )->designerWidget( o ) );
	if ( passiveInteractor ) {
	    selectionChanged();
	    QTimer::singleShot( 0, formWindow(), SLOT( visibilityChanged() ) );
	}
	return !passiveInteractor;
    case QEvent::MouseMove:
	if ( isAToolBarChild( o ) && currentTool() != CONNECT_TOOL )
	    break;
	w = isAFormWindowChild( o );
	if ( lastPressWidget != (QWidget*)o && w &&
	     !o->inherits( "SizeHandle" ) && !o->inherits( "OrderIndicator" ) &&
	     !o->inherits( "QPopupMenu" ) && !o->inherits( "QMenuBar" ) &&
	     !o->inherits( "QSizeGrip" ) )
	    return TRUE;
	if ( o && o->inherits( "QSizeGrip" ) )
	    break;
	if ( lastPressWidget != (QWidget*)o ||
	     ( !w || o->inherits( "SizeHandle" ) || o->inherits( "OrderIndicator" ) ) )
	    break;
	passiveInteractor = WidgetFactory::isPassiveInteractor( o );
	if ( !passiveInteractor )
	    ( (FormWindow*)w )->handleMouseMove( (QMouseEvent*)e, ( (FormWindow*)w )->designerWidget( o ) );
	return !passiveInteractor;
    case QEvent::KeyPress:
	if ( ( (QKeyEvent*)e )->key() == Key_Escape && currentTool() != POINTER_TOOL ) {
	    resetTool();
	    return FALSE;
	}
	if ( ( (QKeyEvent*)e )->key() == Key_Escape && incrementalSearch->hasFocus() ) {
	    if ( qWorkspace()->activeWindow() && qWorkspace()->activeWindow()->inherits( "SourceEditor" ) ) {
		qWorkspace()->activeWindow()->setFocus();
		return TRUE;
	    }
	}
	if ( !( w = isAFormWindowChild( o ) ) || o->inherits( "SizeHandle" ) || o->inherits( "OrderIndicator" ) )
	    break;
	( (FormWindow*)w )->handleKeyPress( (QKeyEvent*)e, ( (FormWindow*)w )->designerWidget( o ) );
	if ( ((QKeyEvent*)e)->isAccepted() )
	    return TRUE;
	break;
    case QEvent::MouseButtonDblClick:
	if ( !( w = isAFormWindowChild( o ) ) || o->inherits( "SizeHandle" ) || o->inherits( "OrderIndicator" ) ) {
	    if ( o && o->inherits( "QToolButton" ) && ( ( QToolButton*)o )->isOn() &&
		 o->parent() && o->parent()->inherits( "QToolBar" ) && formWindow() )
		formWindow()->setToolFixed();
	    break;
	}
	if ( currentTool() == ORDER_TOOL ) {
	    ( (FormWindow*)w )->handleMouseDblClick( (QMouseEvent*)e, ( (FormWindow*)w )->designerWidget( o ) );
	    return TRUE;
	}
	if ( !WidgetFactory::isPassiveInteractor( o ) && ( (FormWindow*)w )->formFile() )
	    return openEditor( ( (FormWindow*)w )->designerWidget( o ), (FormWindow*)w );
	return TRUE;
    case QEvent::KeyRelease:
	if ( !( w = isAFormWindowChild( o ) ) || o->inherits( "SizeHandle" ) || o->inherits( "OrderIndicator" ) )
	    break;
	( (FormWindow*)w )->handleKeyRelease( (QKeyEvent*)e, ( (FormWindow*)w )->designerWidget( o ) );
	if ( ((QKeyEvent*)e)->isAccepted() )
	    return TRUE;
	break;
    case QEvent::Hide:
	if ( !( w = isAFormWindowChild( o ) ) || o->inherits( "SizeHandle" ) || o->inherits( "OrderIndicator" ) )
	    break;
	if ( ( (FormWindow*)w )->isWidgetSelected( (QWidget*)o ) )
	    ( (FormWindow*)w )->selectWidget( (QWidget*)o, FALSE );
	break;
    case QEvent::Enter:
    case QEvent::Leave:
	if ( !( w = isAFormWindowChild( o ) ) || o->inherits( "SizeHandle" ) || o->inherits( "OrderIndicator" ) || o->inherits( "QDesignerMenuBar" ) )
	    break;
	return TRUE;
    case QEvent::Resize:
    case QEvent::Move:
	if ( !( w = isAFormWindowChild( o ) ) || o->inherits( "SizeHandle" ) || o->inherits( "OrderIndicator" ) )
	    break;
	if ( WidgetFactory::layoutType( (QWidget*)o->parent() ) != WidgetFactory::NoLayout ) {
	    ( (FormWindow*)w )->updateSelection( (QWidget*)o );
	    if ( e->type() != QEvent::Resize )
		( (FormWindow*)w )->updateChildSelections( (QWidget*)o );
	}
	break;
    case QEvent::Close:
	if ( o->isWidgetType() && (QWidget*)o == (QWidget*)previewedForm ) {
	    if ( lastActiveFormWindow && lastActiveFormWindow->project() ) {
		QStringList lst =
		    MetaDataBase::fakeProperty( lastActiveFormWindow, "database" ).toStringList();
		lastActiveFormWindow->project()->closeDatabase( lst[ 0 ] );
	    }
	}
	break;
    case QEvent::DragEnter:
	if ( o == qWorkspace() || o == workspace() || o == workspace()->viewport() ) {
	    workspace()->contentsDragEnterEvent( (QDragEnterEvent*)e );
	    return TRUE;
	}
	break;
    case QEvent::DragMove:
	if ( o == qWorkspace() || o == workspace() || o == workspace()->viewport() ) {
	    workspace()->contentsDragMoveEvent( (QDragMoveEvent*)e );
	    return TRUE;
	}
	break;
    case QEvent::Drop:
	if ( o == qWorkspace() || o == workspace() || o == workspace()->viewport() ) {
	    workspace()->contentsDropEvent( (QDropEvent*)e );
	    return TRUE;
	}
	break;
    case QEvent::Show:
	if ( o != this )
	    break;
	if ( ((QShowEvent*)e)->spontaneous() )
	    break;
	QApplication::sendPostedEvents( qworkspace, QEvent::ChildInserted );
	showEvent( (QShowEvent*)e );
	checkTempFiles();
	return TRUE;
    case QEvent::Wheel:
	if ( !( w = isAFormWindowChild( o ) ) || o->inherits( "SizeHandle" ) || o->inherits( "OrderIndicator" ) )
	    break;
	return TRUE;
    case QEvent::FocusIn:
	if ( !o->inherits( "FormWindow" ) && isAFormWindowChild( o ) )
	    return TRUE;
	if ( qworkspace->activeWindow() &&
	     qworkspace->activeWindow()->inherits( "SourceEditor" ) )
	    ed = (QWidget*)qworkspace->activeWindow()->child( 0, "Editor" );
	if ( o != ed && ( o->inherits( "Editor" ) || o->inherits( "FormWindow" ) ) ) {
	    // QCustomEvent( 9999 ) is used by QListView to end in-place
	    // editing. In the case that one edits e.g. a class variable in
	    // the form definition view and clicks on another form in the
	    // designer, the in-place editor receives a focus out event. This
	    // event posts a QCustomEvent( 9999 ) to QListView to end in-place
	    // editing, which triggers a FormDefinitionView::save(). To make
	    // sure that we save() before the new active formwindow is set,
	    // post queued custom events of that type now.
	    // BUT: We must not do that of we click on the editor
	    // which is currently active already anyway. This crashes
	    // for some reason, which I couldn't find. That's why
	    // there is the o != ed condition in the if statement
	    // above
	    if ( hierarchyView->formDefinitionView()->isRenaming() )
		QApplication::sendPostedEvents( hierarchyView->formDefinitionView()->
						child( 0, "QLineEdit" ) , 9999 );
	}
	if ( o->inherits( "Editor" ) ) {
	    QWidget *w = (QWidget*)o;
	    while ( w ) {
		if ( w->inherits( "SourceEditor" ) )
		    break;
		w = w->parentWidget( TRUE );
	    }
	    if ( w && w->inherits( "SourceEditor" ) )
		( (SourceEditor*)w )->checkTimeStamp();