resource.cpp

这个是Linux的qt源代码

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**
** 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.
**
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** licenses may use this file in accordance with the Qt Commercial License
** Agreement provided with the Software.
**
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** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
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** See http://www.trolltech.com/pricing.html or email [e-mail] for
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#include "actiondnd.h"
#include "command.h"
#ifndef QT_NO_SQL
#include "database.h"
#endif
#include "formfile.h"
#include "formwindow.h"
#include "mainwindow.h"
#include "menubareditor.h"
#include "metadatabase.h"
#include "pixmapcollection.h"
#include "popupmenueditor.h"
#include "project.h"
#include "resource.h"
#include "widgetfactory.h"

#include <domtool.h>
#include <widgetdatabase.h>

#include <qaccel.h>
#include <qapplication.h>
#include <qbuffer.h>
#include <qcombobox.h>
#include <qdatetime.h>
#include <qdom.h>
#include <qfeatures.h>
#include <qfile.h>
#include <qheader.h>
#include <qiconview.h>
#include <qlabel.h>
#include <qlayout.h>
#include <qlistbox.h>
#include <qlistview.h>
#include <qmenudata.h>
#include <qmessagebox.h>
#include <qmetaobject.h>
#include <qobject.h>
#include <qobjectlist.h>
#include <qtabbar.h>
#ifndef QT_NO_TABLE
#include <qtable.h>
#endif
#include <qtabwidget.h>
#include <qtabwidget.h>
#include <qtextcodec.h>
#include <qtextstream.h>
#include <qtooltip.h>
#include <qwhatsthis.h>
#include <qwidget.h>
#include <qwidgetstack.h>
#include <qwizard.h>
#include <qworkspace.h>
#include <qworkspace.h>
#include <private/qucom_p.h>

static QString makeIndent( int indent )
{
    QString s;
    s.fill( ' ', indent * 4 );
    return s;
}

static QString entitize( const QString &s, bool attribute = FALSE )
{
    QString s2 = s;
    s2 = s2.replace( "&", "&amp;" );
    s2 = s2.replace( ">", "&gt;" );
    s2 = s2.replace( "<", "&lt;" );
    if ( attribute ) {
	s2 = s2.replace( "\"", "&quot;" );
	s2 = s2.replace( "'", "&apos;" );
    }
    return s2;
}

#ifdef Q_WS_MACX
static struct {
    int key;
    const char* name;
} keyname[] = {
    { Qt::Key_Space,        QT_TRANSLATE_NOOP( "QAccel", "Space" ) },
    { Qt::Key_Escape,       QT_TRANSLATE_NOOP( "QAccel", "Esc" ) },
    { Qt::Key_Tab,          QT_TRANSLATE_NOOP( "QAccel", "Tab" ) },
    { Qt::Key_Backtab,      QT_TRANSLATE_NOOP( "QAccel", "Backtab" ) },
    { Qt::Key_Backspace,    QT_TRANSLATE_NOOP( "QAccel", "Backspace" ) },
    { Qt::Key_Return,       QT_TRANSLATE_NOOP( "QAccel", "Return" ) },
    { Qt::Key_Enter,        QT_TRANSLATE_NOOP( "QAccel", "Enter" ) },
    { Qt::Key_Insert,       QT_TRANSLATE_NOOP( "QAccel", "Ins" ) },
    { Qt::Key_Delete,       QT_TRANSLATE_NOOP( "QAccel", "Del" ) },
    { Qt::Key_Pause,        QT_TRANSLATE_NOOP( "QAccel", "Pause" ) },
    { Qt::Key_Print,        QT_TRANSLATE_NOOP( "QAccel", "Print" ) },
    { Qt::Key_SysReq,       QT_TRANSLATE_NOOP( "QAccel", "SysReq" ) },
    { Qt::Key_Home,         QT_TRANSLATE_NOOP( "QAccel", "Home" ) },
    { Qt::Key_End,          QT_TRANSLATE_NOOP( "QAccel", "End" ) },
    { Qt::Key_Left,         QT_TRANSLATE_NOOP( "QAccel", "Left" ) },
    { Qt::Key_Up,           QT_TRANSLATE_NOOP( "QAccel", "Up" ) },
    { Qt::Key_Right,        QT_TRANSLATE_NOOP( "QAccel", "Right" ) },
    { Qt::Key_Down,         QT_TRANSLATE_NOOP( "QAccel", "Down" ) },
    { Qt::Key_Prior,        QT_TRANSLATE_NOOP( "QAccel", "PgUp" ) },
    { Qt::Key_Next,         QT_TRANSLATE_NOOP( "QAccel", "PgDown" ) },
    { Qt::Key_CapsLock,     QT_TRANSLATE_NOOP( "QAccel", "CapsLock" ) },
    { Qt::Key_NumLock,      QT_TRANSLATE_NOOP( "QAccel", "NumLock" ) },
    { Qt::Key_ScrollLock,   QT_TRANSLATE_NOOP( "QAccel", "ScrollLock" ) },
    { Qt::Key_Menu,         QT_TRANSLATE_NOOP( "QAccel", "Menu" ) },
    { Qt::Key_Help,         QT_TRANSLATE_NOOP( "QAccel", "Help" ) },

    // Multimedia keys
    { Qt::Key_Back,         QT_TRANSLATE_NOOP( "QAccel", "Back" ) },
    { Qt::Key_Forward,      QT_TRANSLATE_NOOP( "QAccel", "Forward" ) },
    { Qt::Key_Stop,         QT_TRANSLATE_NOOP( "QAccel", "Stop" ) },
    { Qt::Key_Refresh,      QT_TRANSLATE_NOOP( "QAccel", "Refresh" ) },
    { Qt::Key_VolumeDown,   QT_TRANSLATE_NOOP( "QAccel", "Volume Down" ) },
    { Qt::Key_VolumeMute,   QT_TRANSLATE_NOOP( "QAccel", "Volume Mute" ) },
    { Qt::Key_VolumeUp,     QT_TRANSLATE_NOOP( "QAccel", "Volume Up" ) },
    { Qt::Key_BassBoost,    QT_TRANSLATE_NOOP( "QAccel", "Bass Boost" ) },
    { Qt::Key_BassUp,       QT_TRANSLATE_NOOP( "QAccel", "Bass Up" ) },
    { Qt::Key_BassDown,     QT_TRANSLATE_NOOP( "QAccel", "Bass Down" ) },
    { Qt::Key_TrebleUp,     QT_TRANSLATE_NOOP( "QAccel", "Treble Up" ) },
    { Qt::Key_TrebleDown,   QT_TRANSLATE_NOOP( "QAccel", "Treble Down" ) },
    { Qt::Key_MediaPlay,    QT_TRANSLATE_NOOP( "QAccel", "Media Play" ) },
    { Qt::Key_MediaStop,    QT_TRANSLATE_NOOP( "QAccel", "Media Stop" ) },
    { Qt::Key_MediaPrev,    QT_TRANSLATE_NOOP( "QAccel", "Media Previous" ) },
    { Qt::Key_MediaNext,    QT_TRANSLATE_NOOP( "QAccel", "Media Next" ) },
    { Qt::Key_MediaRecord,  QT_TRANSLATE_NOOP( "QAccel", "Media Record" ) },
    { Qt::Key_HomePage,     QT_TRANSLATE_NOOP( "QAccel", "Home" ) },
    { Qt::Key_Favorites,    QT_TRANSLATE_NOOP( "QAccel", "Favorites" ) },
    { Qt::Key_Search,       QT_TRANSLATE_NOOP( "QAccel", "Search" ) },
    { Qt::Key_Standby,      QT_TRANSLATE_NOOP( "QAccel", "Standby" ) },
    { Qt::Key_OpenUrl,      QT_TRANSLATE_NOOP( "QAccel", "Open URL" ) },
    { Qt::Key_LaunchMail,   QT_TRANSLATE_NOOP( "QAccel", "Launch Mail" ) },
    { Qt::Key_LaunchMedia,  QT_TRANSLATE_NOOP( "QAccel", "Launch Media" ) },
    { Qt::Key_Launch0,      QT_TRANSLATE_NOOP( "QAccel", "Launch (0)" ) },
    { Qt::Key_Launch1,      QT_TRANSLATE_NOOP( "QAccel", "Launch (1)" ) },
    { Qt::Key_Launch2,      QT_TRANSLATE_NOOP( "QAccel", "Launch (2)" ) },
    { Qt::Key_Launch3,      QT_TRANSLATE_NOOP( "QAccel", "Launch (3)" ) },
    { Qt::Key_Launch4,      QT_TRANSLATE_NOOP( "QAccel", "Launch (4)" ) },
    { Qt::Key_Launch5,      QT_TRANSLATE_NOOP( "QAccel", "Launch (5)" ) },
    { Qt::Key_Launch6,      QT_TRANSLATE_NOOP( "QAccel", "Launch (6)" ) },
    { Qt::Key_Launch7,      QT_TRANSLATE_NOOP( "QAccel", "Launch (7)" ) },
    { Qt::Key_Launch8,      QT_TRANSLATE_NOOP( "QAccel", "Launch (8)" ) },
    { Qt::Key_Launch9,      QT_TRANSLATE_NOOP( "QAccel", "Launch (9)" ) },
    { Qt::Key_LaunchA,      QT_TRANSLATE_NOOP( "QAccel", "Launch (A)" ) },
    { Qt::Key_LaunchB,      QT_TRANSLATE_NOOP( "QAccel", "Launch (B)" ) },
    { Qt::Key_LaunchC,      QT_TRANSLATE_NOOP( "QAccel", "Launch (C)" ) },
    { Qt::Key_LaunchD,      QT_TRANSLATE_NOOP( "QAccel", "Launch (D)" ) },
    { Qt::Key_LaunchE,      QT_TRANSLATE_NOOP( "QAccel", "Launch (E)" ) },
    { Qt::Key_LaunchF,      QT_TRANSLATE_NOOP( "QAccel", "Launch (F)" ) },

    // --------------------------------------------------------------
    // More consistent namings
    { Qt::Key_Print,        QT_TRANSLATE_NOOP( "QAccel", "Print Screen" ) },
    { Qt::Key_Prior,        QT_TRANSLATE_NOOP( "QAccel", "Page Up" ) },
    { Qt::Key_Next,         QT_TRANSLATE_NOOP( "QAccel", "Page Down" ) },
    { Qt::Key_CapsLock,     QT_TRANSLATE_NOOP( "QAccel", "Caps Lock" ) },
    { Qt::Key_NumLock,      QT_TRANSLATE_NOOP( "QAccel", "Num Lock" ) },
    { Qt::Key_NumLock,      QT_TRANSLATE_NOOP( "QAccel", "Number Lock" ) },
    { Qt::Key_ScrollLock,   QT_TRANSLATE_NOOP( "QAccel", "Scroll Lock" ) },
    { Qt::Key_Insert,       QT_TRANSLATE_NOOP( "QAccel", "Insert" ) },
    { Qt::Key_Delete,       QT_TRANSLATE_NOOP( "QAccel", "Delete" ) },
    { Qt::Key_Escape,       QT_TRANSLATE_NOOP( "QAccel", "Escape" ) },
    { Qt::Key_SysReq,       QT_TRANSLATE_NOOP( "QAccel", "System Request" ) },

    { 0, 0 }
};
#endif
static QString platformNeutralKeySequence(const QKeySequence &ks)
{
#ifndef Q_WS_MACX
    return QString(ks);
#else
    uint k;
    QString str;
    QString p;
    for (k = 0; k < ks.count(); ++k) {
	int keycombo = ks[k];
	int basekey = keycombo & ~(Qt::SHIFT | Qt::CTRL | Qt::ALT | Qt::META);
	if (keycombo & Qt::CTRL)
	    str += "Ctrl+";
	if (keycombo & Qt::ALT)
	    str += "Alt+";
	if (keycombo & Qt::META)
	    str += "Meta+";
	if (keycombo & Qt::SHIFT)
	    str += "Shift+";

	// begin copy and paste from QKeySequence :(
	if (basekey & Qt::UNICODE_ACCEL) {
	    // Note: This character should NOT be upper()'ed, since
	    // the encoded string should indicate EXACTLY what the
	    // key represents! Hence a 'Ctrl+Shift+c' is posible to
	    // represent, but is clearly impossible to trigger...
	    p = QChar(basekey & 0xffff);
	} else if ( basekey >= Qt::Key_F1 && basekey <= Qt::Key_F35 ) {
	    p = QAccel::tr( "F%1" ).arg(basekey - Qt::Key_F1 + 1);
	} else if ( basekey > Qt::Key_Space && basekey <= Qt::Key_AsciiTilde ) {
	    p.sprintf( "%c", basekey );
	} else {
	    int i = 0;
	    while (keyname[i].name) {
		if (basekey == keyname[i].key) {
		    p = QAccel::tr(keyname[i].name);
		    break;
		}
		++i;
	    }
	    // If we can't find the actual translatable keyname,
	    // fall back on the unicode representation of it...
	    // Or else characters like Key_aring may not get displayed
	    // ( Really depends on you locale )
	    if ( !keyname[i].name )
		// Note: This character should NOT be upper()'ed, see above!
		p = QChar(basekey & 0xffff);
	}
    }
    // end copy...
    str += p;
    return str;
#endif
}

static QString mkBool( bool b )
{
    return b? "true" : "false";
}

/*!
  \class Resource resource.h
  \brief Class for saving/loading, etc. forms

  This class is used for saving and loading forms, code generation,
  transferring data of widgets over the clipboard, etc..

*/


Resource::Resource()
{
    mainwindow = 0;
    formwindow = 0;
    toplevel = 0;
    copying = FALSE;
    pasting = FALSE;
    hadGeometry = FALSE;
    langIface = 0;
    hasFunctions = FALSE;
}

Resource::Resource( MainWindow* mw )
    : mainwindow( mw )
{
    formwindow = 0;
    toplevel = 0;
    copying = FALSE;
    pasting = FALSE;
    hadGeometry = FALSE;
    langIface = 0;
    hasFunctions = FALSE;
}

Resource::~Resource()
{
    if ( langIface )
	langIface->release();
}

void Resource::setWidget( FormWindow *w )
{
    formwindow = w;
    toplevel = w;
}

QWidget *Resource::widget() const
{
    return toplevel;
}

bool Resource::load( FormFile *ff, Project *defProject )
{
    if ( !ff || ff->absFileName().isEmpty() )
	return FALSE;
    currFileName = ff->absFileName();
    mainContainerSet = FALSE;

    QFile f( ff->absFileName() );
    f.open( IO_ReadOnly );

    bool b = load( ff, &f, defProject );
    f.close();

    return b;
}

#undef signals
#undef slots

bool Resource::load( FormFile *ff, QIODevice* dev, Project *defProject )
{
    QDomDocument doc;
    QString errMsg;
    int errLine;
    if ( !doc.setContent( dev, &errMsg, &errLine ) ) {
	qDebug( QString("Parse error: ") + errMsg + QString(" in line %d"), errLine );
	return FALSE;
    }

    DomTool::fixDocument( doc );

    QWidget *p = mainwindow ? mainwindow->qWorkspace() : 0;
    toplevel = formwindow = new FormWindow( ff, p, 0 );
    if ( defProject )
	formwindow->setProject( defProject );
    else if ( MainWindow::self )
	formwindow->setProject( MainWindow::self->currProject() );
    if ( mainwindow )
	formwindow->setMainWindow( mainwindow );
    MetaDataBase::addEntry( formwindow );

    if ( !langIface ) {
	QString lang = "Qt Script";
	if ( mainwindow )
	    lang = mainwindow->currProject()->language();
	langIface = MetaDataBase::languageInterface( lang );
	if ( langIface )
	    langIface->addRef();
    }

    QDomElement e = doc.firstChild().toElement().firstChild().toElement();

    QDomElement forwards = e;
    while ( forwards.tagName() != "forwards" && !forwards.isNull() )