generator.cpp

qt-x11-opensource-src-4.1.4.tar.gz源码

/****************************************************************************
**
** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.
**
** This file is part of the tools applications of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at [e-mail].
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#include "generator.h"
#include "outputrevision.h"
#include "utils.h"
#include <stdio.h>

// if the flags change, you MUST to change it in qmetaobject.cpp too
enum PropertyFlags  {
    Invalid = 0x00000000,
    Readable = 0x00000001,
    Writable = 0x00000002,
    Resetable = 0x00000004,
    EnumOrFlag = 0x00000008,
    StdCppSet = 0x00000100,
//     Override = 0x00000200,
    Designable = 0x00001000,
    ResolveDesignable = 0x00002000,
    Scriptable = 0x00004000,
    ResolveScriptable = 0x00008000,
    Stored = 0x00010000,
    ResolveStored = 0x00020000,
    Editable = 0x00040000,
    ResolveEditable = 0x00080000,
    User = 0x00100000,
    ResolveUser = 0x00200000
};
enum MethodFlags {
    AccessPrivate = 0x00,
    AccessProtected = 0x01,
    AccessPublic = 0x02,
    MethodMethod = 0x00,
    MethodSignal = 0x04,
    MethodSlot = 0x08,
    MethodCompatibility = 0x10,
    MethodCloned = 0x20,
    MethodScriptable = 0x40
};

/*
  Attention!  This table is copied from qvariant.cpp. If you
  change one, change both.
*/
enum { CoreTypeCount = 28 };
static const char* const core_type_map[CoreTypeCount] =
{
    0,
    "bool",
    "int",
    "uint",
    "qlonglong",
    "qulonglong",
    "double",
    "QChar",
    "QVariantMap",
    "QVariantList",
    "QString",
    "QStringList",
    "QByteArray",
    "QBitArray",
    "QDate",
    "QTime",
    "QDateTime",
    "QUrl",
    "QLocale",
    "QRect",
    "QRectF",
    "QSize",
    "QSizeF",
    "QLine",
    "QLineF",
    "QPoint",
    "QPointF",
    "QRegExp"
};

enum { GuiTypeCount = 79 - 63 + 1 };
static const char* const gui_type_map[GuiTypeCount] =
{
    "QColorGroup",
    "QFont",
    "QPixmap",
    "QBrush",
    "QColor",
    "QPalette",
    "QIcon",
    "QImage",
    "QPolygon",
    "QRegion",
    "QBitmap",
    "QCursor",
    "QSizePolicy",
    "QKeySequence",
    "QPen",
    "QTextLength",
    "QTextFormat"
};

int qvariant_nameToType(const char* name)
{
    if (name) {
        if (strcmp(name, "QVariant") == 0)
            return 0xffffffff;

        if (strcmp(name, "QCString") == 0)
            name = "QByteArray";
        else if (strcmp(name, "Q_LLONG") == 0)
            name = "qlonglong";
        else if (strcmp(name, "Q_ULLONG") == 0)
            name = "qulonglong";
        else if (strcmp(name, "QIconSet") == 0)
            name = "QIcon";

        int i;
        for (i = 1; i < CoreTypeCount; ++i) {
            if (strcmp(core_type_map[i], name) == 0)
                return i;
        }
        for (i = 0; i < GuiTypeCount; ++i) {
            if (strcmp(gui_type_map[i], name) == 0)
                return (i + 63);
        }
    }
    return 0;
}

/*
  Returns true if the type is a QVariant types.
*/
bool isVariantType(const char* type)
{
    return qvariant_nameToType(type) != 0;
}

Generator::Generator(FILE *outfile, ClassDef *classDef) :out(outfile), cdef(classDef)
{
    if (cdef->superclassList.size())
        purestSuperClass = cdef->superclassList.first().first;
}

int Generator::strreg(const char *s)
{
    int idx = 0;
    if (!s)
        s = "";
    for (int i = 0; i < strings.size(); ++i) {
        const QByteArray &str = strings.at(i);
        if (str == s)
            return idx;
        idx += str.length() + 1;
        idx -= str.count('\\');
    }
    strings.append(s);
    return idx;
}

void Generator::generateCode()
{
    bool isQt = (cdef->classname == "Qt");
    bool isQObject = (cdef->classname == "QObject");

//
// build the data array
//
    int i = 0;


    // filter out undeclared enumerators and sets
    {
        QList<EnumDef> enumList;
        for (i = 0; i < cdef->enumList.count(); ++i) {
            EnumDef def = cdef->enumList.at(i);
            if (cdef->enumDeclarations.contains(def.name)) {
                enumList += def;
            }
            QByteArray alias = cdef->flagAliases.value(def.name);
            if (cdef->enumDeclarations.contains(alias)) {
                def.name = alias;
                enumList += def;
            }
        }
        cdef->enumList = enumList;
    }


    QByteArray qualifiedClassNameIdentifier = cdef->qualified;
    qualifiedClassNameIdentifier.replace(':', '_');

    int index = 10;
    fprintf(out, "static const uint qt_meta_data_%s[] = {\n", qualifiedClassNameIdentifier.constData());
    fprintf(out, "\n // content:\n");
    fprintf(out, "    %4d,       // revision\n", 1);
    fprintf(out, "    %4d,       // classname\n", strreg(cdef->qualified));
    fprintf(out, "    %4d, %4d, // classinfo\n", cdef->classInfoList.count(), cdef->classInfoList.count() ? index : 0);
    index += cdef->classInfoList.count() * 2;

    int methodCount = cdef->signalList.count() + cdef->slotList.count() + cdef->methodList.count();
    fprintf(out, "    %4d, %4d, // methods\n", methodCount, methodCount ? index : 0);
    index += methodCount * 5;
    fprintf(out, "    %4d, %4d, // properties\n", cdef->propertyList.count(), cdef->propertyList.count() ? index : 0);
    index += cdef->propertyList.count() * 3;
    fprintf(out, "    %4d, %4d, // enums/sets\n", cdef->enumList.count(), cdef->enumList.count() ? index : 0);


//
// Build classinfo array
//
    generateClassInfos();

//
// Build signals array first, otherwise the signal indices would be wrong
//
    generateFunctions(cdef->signalList, "signal", MethodSignal);

//
// Build slots array
//
    generateFunctions(cdef->slotList, "slot", MethodSlot);

//
// Build method array
//
    generateFunctions(cdef->methodList, "method", MethodMethod);


//
// Build property array
//
    generateProperties();

//
// Build enums array
//
    generateEnums(index);

//
// Terminate data array
//
    fprintf(out, "\n       0        // eod\n};\n\n");

//
// Build stringdata array
//
    fprintf(out, "static const char qt_meta_stringdata_%s[] = {\n", qualifiedClassNameIdentifier.constData());
    fprintf(out, "    \"");
    int col = 0;
    int len = 0;
    for (i = 0; i < strings.size(); ++i) {
        QByteArray s = strings.at(i);
        len = s.length();
        if (col && col + len >= 72) {
            fprintf(out, "\"\n    \"");
            col = 0;
        } else if (len && s.at(0) >= '0' && s.at(0) <= '9') {
            fprintf(out, "\"\"");
            len += 2;
        }
        fprintf(out, "%s\\0", s.constData());
        col += len + 2;
    }
    fprintf(out, "\"\n};\n\n");


//
// Build extra array
//
    QList<QByteArray> extraList;
    for (int i = 0; i < cdef->propertyList.count(); ++i) {
        const PropertyDef &p = cdef->propertyList.at(i);
        if (!isVariantType(p.type)) {
            int s = p.type.indexOf("::");
            if (s > 0) {
                QByteArray scope = p.type.left(s);
                if (scope != "Qt" && scope != cdef->classname && !extraList.contains(scope))
                    extraList += scope;
            }
        }
    }
    if (!extraList.isEmpty()) {
        fprintf(out, "static const QMetaObject *qt_meta_extradata_%s[] = {\n    ", qualifiedClassNameIdentifier.constData());
        for (int i = 0; i < extraList.count(); ++i) {
            if (i)
                fprintf(out, ",\n    ");