customwidgeteditorimpl.cpp

Linux下的基于X11的图形开发环境。

/**********************************************************************
** Copyright (C) 2000 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.
**
** 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.
**
** Contact [e-mail] if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/

#include "customwidgeteditorimpl.h"
#include "defs.h"
#include "pixmapchooser.h"
#include "mainwindow.h"
#include "asciivalidator.h"
#include "resource.h"
#include "widgetfactory.h"
#include "widgetdatabase.h"

#include <qlistbox.h>
#include <qpushbutton.h>
#include <qlineedit.h>
#include <qcombobox.h>
#include <qspinbox.h>
#include <qlabel.h>
#include <qmessagebox.h>
#include <qfiledialog.h>
#include <qmessagebox.h>
#include <qtimer.h>
#include <qapplication.h>
#include <qlistview.h>
#include <qfile.h>
#include <qtextstream.h>
#include <qdom.h>
#include <qtextcodec.h>
#include <qcheckbox.h>

CustomWidgetEditor::CustomWidgetEditor( QWidget *parent, MainWindow *mw )
    : CustomWidgetEditorBase( parent, 0, TRUE ), mainWindow( mw )
{
    connect( helpButton, SIGNAL( clicked() ), MainWindow::self, SLOT( showDialogHelp() ) );
    checkTimer = new QTimer( this );
    connect( checkTimer, SIGNAL( timeout() ),
	     this, SLOT( checkWidgetName() ) );

    editClass->setEnabled( FALSE );
    editHeader->setEnabled( FALSE );
    buttonChooseHeader->setEnabled( FALSE );
    buttonChoosePixmap->setEnabled( FALSE );
    spinWidth->setEnabled( FALSE );
    spinHeight->setEnabled( FALSE );
    sizeHor->setEnabled( FALSE );
    sizeVer->setEnabled( FALSE );
    checkContainer->setEnabled( FALSE );
    localGlobalCombo->setEnabled( FALSE );
    editClass->setValidator( new AsciiValidator( QString(":"), editClass ) );
    editSignal->setValidator( new AsciiValidator( TRUE, editSignal ) );
    editSlot->setValidator( new AsciiValidator( TRUE, editSignal ) );
    editProperty->setValidator( new AsciiValidator( editSignal ) );
    editSignal->setEnabled( FALSE );
    buttonRemoveSignal->setEnabled( FALSE );

    setupDefinition();
    setupSignals();
    setupSlots();
    setupProperties();
}

void CustomWidgetEditor::setupDefinition()
{
    QPtrList<MetaDataBase::CustomWidget> *lst = MetaDataBase::customWidgets();
    for ( MetaDataBase::CustomWidget *w = lst->first(); w; w = lst->next() ) {
	QListBoxItem *i;
	if ( w->pixmap )
	    i = new QListBoxPixmap( boxWidgets, *w->pixmap, w->className );
	else
	    i = new QListBoxText( boxWidgets, w->className );
	customWidgets.insert( i, w );
    }

    if ( boxWidgets->firstItem() ) {
	boxWidgets->setCurrentItem( boxWidgets->firstItem() );
	boxWidgets->setSelected( boxWidgets->firstItem(), TRUE );
    }
    oldItem = 0;
}

void CustomWidgetEditor::setupSignals()
{
    editSignal->setEnabled( FALSE );
    buttonRemoveSignal->setEnabled( FALSE );
    MetaDataBase::CustomWidget *w = findWidget( boxWidgets->item( boxWidgets->currentItem() ) );
    if ( !w )
	return;
    listSignals->clear();
    for ( QValueList<QCString>::Iterator it = w->lstSignals.begin(); it != w->lstSignals.end(); ++it )
	listSignals->insertItem( QString( *it ) );
    if ( listSignals->firstItem() ) {
	listSignals->setCurrentItem( listSignals->firstItem() );
	listSignals->setSelected( listSignals->firstItem(), TRUE );
    }
}

void CustomWidgetEditor::setupSlots()
{
    editSlot->setEnabled( FALSE );
    comboAccess->setEnabled( FALSE );
    buttonRemoveSlot->setEnabled( FALSE );

    MetaDataBase::CustomWidget *w = findWidget( boxWidgets->item( boxWidgets->currentItem() ) );
    if ( !w )
	return;
    listSlots->clear();
    for ( QValueList<MetaDataBase::Function>::Iterator it = w->lstSlots.begin(); it != w->lstSlots.end(); ++it )
	(void)new QListViewItem( listSlots, (*it).function, (*it).access );

    if ( listSlots->firstChild() ) {
	listSlots->setCurrentItem( listSlots->firstChild() );
	listSlots->setSelected( listSlots->firstChild(), TRUE );
    }
}

void CustomWidgetEditor::setupProperties()
{
    editProperty->setEnabled( FALSE );
    comboType->setEnabled( FALSE );
    buttonRemoveProperty->setEnabled( FALSE );

    MetaDataBase::CustomWidget *w = findWidget( boxWidgets->item( boxWidgets->currentItem() ) );
    if ( !w )
	return;
    listProperties->clear();
    for ( QValueList<MetaDataBase::Property>::Iterator it = w->lstProperties.begin(); it != w->lstProperties.end(); ++it )
	(void)new QListViewItem( listProperties, (*it).property, (*it).type );

    if ( listProperties->firstChild() ) {
	listProperties->setCurrentItem( listProperties->firstChild() );
	listProperties->setSelected( listProperties->firstChild(), TRUE );
    }
}

void CustomWidgetEditor::currentWidgetChanged( QListBoxItem *i )
{
    checkTimer->stop();
    checkWidgetName();

    MetaDataBase::CustomWidget *w = findWidget( i );
    if ( !i || !w ) {
	buttonChooseHeader->setEnabled( FALSE );
	editClass->setEnabled( FALSE );
	editHeader->setEnabled( FALSE );
	buttonChoosePixmap->setEnabled( FALSE );
	spinWidth->setEnabled( FALSE );
	spinHeight->setEnabled( FALSE );
	localGlobalCombo->setEnabled( FALSE );
	sizeHor->setEnabled( FALSE );
	sizeVer->setEnabled( FALSE );
	checkContainer->setEnabled( FALSE );
	return;
    }

    buttonChooseHeader->setEnabled( TRUE );
    editClass->setEnabled( TRUE );
    editHeader->setEnabled( TRUE );
    buttonChoosePixmap->setEnabled( TRUE );
    spinWidth->setEnabled( TRUE );
    spinHeight->setEnabled( TRUE );
    localGlobalCombo->setEnabled( TRUE );
    sizeHor->setEnabled( TRUE );
    sizeVer->setEnabled( TRUE );
    checkContainer->setEnabled( TRUE );

    editClass->blockSignals( TRUE );
    editClass->setText( w->className );
    editClass->blockSignals( FALSE );
    editHeader->setText( w->includeFile );
    localGlobalCombo->setCurrentItem( (int)w->includePolicy );
    if ( w->pixmap )
	previewPixmap->setPixmap( *w->pixmap );
    else
	previewPixmap->setText( "" );
    spinWidth->setValue( w->sizeHint.width() );
    spinHeight->setValue( w->sizeHint.height() );
    sizeHor->setCurrentItem( size_type_to_int( w->sizePolicy.horData() ) );
    sizeVer->setCurrentItem( size_type_to_int( w->sizePolicy.verData() ) );
    checkContainer->setChecked( w->isContainer );

    setupSignals();
    setupSlots();
    setupProperties();
}

void CustomWidgetEditor::addWidgetClicked()
{
    oldItem = 0;
    checkTimer->stop();
    checkWidgetName();

    MetaDataBase::CustomWidget *w = new MetaDataBase::CustomWidget;
    QString s = w->className;
    if ( !MetaDataBase::addCustomWidget( w ) ) {
	QMessageBox::information( this, tr( "Adding a Custom Widget" ),
				  tr( "Custom widget names must be unique.\n"
				      "A custom widget called '%1' already exists, so it is not possible "
				      "to add another widget with this name." ).arg( s ) );
	return;
    }

    QListBoxPixmap *i = new QListBoxPixmap( boxWidgets, *w->pixmap, w->className );
    customWidgets.insert( i, w );

    boxWidgets->setCurrentItem( i );
    boxWidgets->setSelected( i, TRUE );
}

void CustomWidgetEditor::classNameChanged( const QString &s )
{
    QListBoxItem *i = boxWidgets->item( boxWidgets->currentItem() );
    MetaDataBase::CustomWidget *w = findWidget( i );
    if ( !i || !w )
	return;

    WidgetDatabase::customWidgetClassNameChanged( w->className, s );

    checkTimer->stop();
    boxWidgets->blockSignals( TRUE );
    oldName = w->className;
    w->className = s;
    QListBoxItem *old = i;
    if ( w->pixmap )
	boxWidgets->changeItem( *w->pixmap, s, boxWidgets->currentItem() );
    else
	boxWidgets->changeItem( s, boxWidgets->currentItem() );
    i = boxWidgets->item( boxWidgets->currentItem() );
    oldItem = i;
    customWidgets.insert( i, w );
    customWidgets.remove( old );
    boxWidgets->blockSignals( FALSE );
    checkTimer->start( 1000, TRUE );
}

void CustomWidgetEditor::deleteWidgetClicked()
{
    oldItem = 0;
    checkTimer->stop();
    checkWidgetName();

    QListBoxItem *i = boxWidgets->item( boxWidgets->currentItem() );
    MetaDataBase::CustomWidget *w = findWidget( i );

    if ( mainWindow->isCustomWidgetUsed( w ) ) {
	QMessageBox::information( mainWindow, tr( "Removing Custom Widget" ),
				  tr( "The custom widget '%1' is in use, so it cannot be removed." ).
				  arg( w->className ) );
	return;
    }

    if ( !i || !w )
	return;

    MetaDataBase::removeCustomWidget( w );
    customWidgets.remove( i );
    delete i;

    i = boxWidgets->item( boxWidgets->currentItem() );
    if ( i ) {
	boxWidgets->setCurrentItem( i );
	boxWidgets->setSelected( i, TRUE );
    }
}

void CustomWidgetEditor::headerFileChanged( const QString &s )
{
    QListBoxItem *i = boxWidgets->item( boxWidgets->currentItem() );
    MetaDataBase::CustomWidget *w = findWidget( i );
    if ( !i || !w )
	return;

    w->includeFile = s;
}

void CustomWidgetEditor::heightChanged( int h )
{
    QListBoxItem *i = boxWidgets->item( boxWidgets->currentItem() );
    MetaDataBase::CustomWidget *w = findWidget( i );
    if ( !i || !w )
	return;

    w->sizeHint.setHeight( h );
    updateCustomWidgetSizes();
}

void CustomWidgetEditor::includePolicyChanged( int p )
{
    QListBoxItem *i = boxWidgets->item( boxWidgets->currentItem() );
    MetaDataBase::CustomWidget *w = findWidget( i );
    if ( !i || !w )
	return;

    w->includePolicy = (MetaDataBase::CustomWidget::IncludePolicy)p;
}

void CustomWidgetEditor::pixmapChoosen()
{
    QListBoxItem *i = boxWidgets->item( boxWidgets->currentItem() );
    MetaDataBase::CustomWidget *w = findWidget( i );
    if ( !i || !w )
	return;

    QPixmap pix = qChoosePixmap( this );
    if ( pix.isNull() )
	return;
    delete w->pixmap;
    w->pixmap = new QPixmap( pix );

    boxWidgets->blockSignals( TRUE );
    QListBoxItem *old = i;
    boxWidgets->changeItem( *w->pixmap, w->className, boxWidgets->currentItem() );
    i = boxWidgets->item( boxWidgets->currentItem() );
    customWidgets.insert( i, w );
    customWidgets.remove( old );
    boxWidgets->blockSignals( FALSE );
    previewPixmap->setPixmap( *w->pixmap );
}

void CustomWidgetEditor::widthChanged( int wid )
{
    QListBoxItem *i = boxWidgets->item( boxWidgets->currentItem() );
    MetaDataBase::CustomWidget *w = findWidget( i );
    if ( !i || !w )
	return;

    w->sizeHint.setWidth( wid );
    updateCustomWidgetSizes();
}

MetaDataBase::CustomWidget *CustomWidgetEditor::findWidget( QListBoxItem *i )
{
    if ( !i )
	return 0;

    QMap<QListBoxItem*, MetaDataBase::CustomWidget*>::Iterator it = customWidgets.find( i );
    if ( it == customWidgets.end() )
	return 0;
    return *it;
}

void CustomWidgetEditor::chooseHeader()
{
    QListBoxItem *i = boxWidgets->item( boxWidgets->currentItem() );
    MetaDataBase::CustomWidget *w = findWidget( i );
    if ( !i || !w )
	return;

    QString h = QFileDialog::getOpenFileName( QString::null, tr( "Header Files (*.h *.h++ *.hxx)" ), this );
    if ( h.isEmpty() )
	return;
    editHeader->setText( h );
    localGlobalCombo->setCurrentItem( (int)MetaDataBase::CustomWidget::Global );
}

void CustomWidgetEditor::checkWidgetName()
{
    QListBoxItem *i = oldItem ? oldItem : boxWidgets->item( boxWidgets->currentItem() );
    MetaDataBase::CustomWidget *w = findWidget( i );
    oldItem = 0;
    if ( !i || !w )
	return;

    if ( MetaDataBase::isWidgetNameUsed( w ) ) {
	QString s = w->className;
	w->className = oldName;
	QMessageBox::information( this, tr( "Renaming a Custom Widget" ),
				  tr( "Custom widget names must be unique.\n"
				      "A custom widget called '%1' already exists, so it is not possible "
				      "to rename this widget with this name." ).arg( s ) );
	if ( i != boxWidgets->item( boxWidgets->currentItem() ) ) {
	    boxWidgets->setCurrentItem( i );
	    qApp->processEvents();
	}
	editClass->setText( w->className );
	classNameChanged( w->className );
    }
}

void CustomWidgetEditor::closeClicked()
{
    oldItem = 0;
    checkTimer->stop();
    checkWidgetName();
    accept();
}

void CustomWidgetEditor::currentSignalChanged( QListBoxItem *i )
{
    editSignal->blockSignals( TRUE );
    editSignal->setText( "" );
    editSignal->blockSignals( FALSE );

    if ( !i ) {
	editSignal->setEnabled( FALSE );
	buttonRemoveSignal->setEnabled( FALSE );
	return;
    }