qpropertyeditor_items.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 Qt Designer 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 "qpropertyeditor_items_p.h"
#include "flagbox_p.h"
#include "paletteeditorbutton.h"
#include "defs.h"

#include <QtDesigner/propertysheet.h>

#include <qdesigner_utils_p.h>

#include <QtGui/QLineEdit>
#include <QtGui/QListView>
#include <QtGui/QComboBox>
#include <QtGui/QSpinBox>
#include <QtGui/QValidator>
#include <QtGui/QFontDatabase>
#include <QtGui/QPainter>
#include <QtGui/QDateTimeEdit>
#include <QtGui/QBitmap>
#include <QtGui/QLabel>

#include <QtCore/qdebug.h>
#include <limits.h>

using namespace qdesigner_internal;

Q_GLOBAL_STATIC(QFontDatabase, fontDatabase)

void IProperty::setDirty(bool b)
{
    if (isFake()) {
        IProperty *p = parent();
        while (p != 0 && p->isFake())
            p = p->parent();
        if (p != 0)
            p->setDirty(true);
    } else {
        m_dirty = b;
    }
}

void IProperty::setChanged(bool b)
{
    if (isFake()) {
        IProperty *p = parent();
        while (p != 0 && p->isFake())
            p = p->parent();
        if (p != 0)
            p->setChanged(true);
    } else {
        m_changed = b;
    }
    setDirty(true);
}

// -------------------------------------------------------------------------

QWidget *AbstractPropertyGroup::createEditor(QWidget *parent, const QObject *target, const char *receiver) const
{
    Q_UNUSED(target);
    Q_UNUSED(receiver);

    QLabel *label = new QLabel(parent);
    label->setIndent(2); // ### hardcode it should have the same value of textMargin in QItemDelegate
    label->setBackgroundRole(QPalette::Base);
    return label;
}

void AbstractPropertyGroup::updateEditorContents(QWidget *editor)
{
    QLabel *label = qobject_cast<QLabel*>(editor);
    if (label == 0)
        return;
    label->setText(toString());
}

// -------------------------------------------------------------------------
BoolProperty::BoolProperty(bool value, const QString &name)
    : AbstractProperty<bool>(value, name)
{
}

void BoolProperty::setValue(const QVariant &value)
{
    m_value = value.toBool();
}

QString BoolProperty::toString() const
{
    return m_value ? QLatin1String("true") : QLatin1String("false");
}

QWidget *BoolProperty::createEditor(QWidget *parent, const QObject *target, const char *receiver) const
{
    QComboBox *combo = new QComboBox(parent);
    combo->view()->setTextElideMode(Qt::ElideLeft);
    combo->setFrame(0);
    combo->addItems(QStringList() << QString::fromUtf8("false") << QString::fromUtf8("true"));
    QObject::connect(combo, SIGNAL(activated(int)), target, receiver);

    return combo;
}

void BoolProperty::updateEditorContents(QWidget *editor)
{
    if (QComboBox *combo = qobject_cast<QComboBox*>(editor)) {
        combo->setCurrentIndex(m_value ? 1 : 0);
    }
}

void BoolProperty::updateValue(QWidget *editor)
{
    if (QComboBox *combo = qobject_cast<QComboBox*>(editor)) {
        bool newValue = combo->currentIndex() ? true : false;

        if (newValue != m_value) {
            m_value = newValue;
            setChanged(true);
        }
    }
}

// -------------------------------------------------------------------------
PointProperty::PointProperty(const QPoint &value, const QString &name)
    : AbstractPropertyGroup(name)
{
    IProperty *px = new IntProperty(value.x(), QLatin1String("x"));
    px->setFake(true);
    px->setParent(this);

    IProperty *py = new IntProperty(value.y(), QLatin1String("y"));
    py->setFake(true);
    py->setParent(this);

    m_properties << px << py;
}

QVariant PointProperty::value() const
{
    return QPoint(propertyAt(0)->value().toInt(),
                  propertyAt(1)->value().toInt());
}

void PointProperty::setValue(const QVariant &value)
{
    QPoint pt = value.toPoint();
    propertyAt(0)->setValue(pt.x());
    propertyAt(1)->setValue(pt.y());
}

// -------------------------------------------------------------------------
PropertyCollection::PropertyCollection(const QString &name)
    : m_name(name)
{
}

PropertyCollection::~PropertyCollection()
{
    qDeleteAll(m_properties);
}

void PropertyCollection::addProperty(IProperty *property)
{
    property->setParent(this);
    m_properties.append(property);
}

void PropertyCollection::removeProperty(IProperty *property)
{
    Q_UNUSED(property);
}

int PropertyCollection::indexOf(IProperty *property) const
{
    return m_properties.indexOf(property);
}

int PropertyCollection::propertyCount() const
{
    return m_properties.size();
}

IProperty *PropertyCollection::propertyAt(int index) const
{
    return m_properties.at(index);
}

QString PropertyCollection::propertyName() const
{
    return m_name;
}

QVariant PropertyCollection::value() const
{
    return QVariant();
}

void PropertyCollection::setValue(const QVariant &value)
{
    Q_UNUSED(value);
}

QString PropertyCollection::toString() const
{
    return QString();
}

bool PropertyCollection::hasEditor() const
{
    return false;
}

QWidget *PropertyCollection::createEditor(QWidget *parent, const QObject *target, const char *receiver) const
{
    Q_UNUSED(parent);
    Q_UNUSED(target);
    Q_UNUSED(receiver);
    return 0;
}

bool PropertyCollection::hasExternalEditor() const
{
    return false;
}

QWidget *PropertyCollection::createExternalEditor(QWidget *parent)
{
    Q_UNUSED(parent);
    return 0;
}

// -------------------------------------------------------------------------

StringProperty::StringProperty(const QString &value, const QString &name, bool hasComment, const QString &comment)
    : AbstractPropertyGroup(name),
      m_value(value),
      m_checkValidObjectName(false),
      m_allowScope(false)
{
    if (hasComment) {
        StringProperty *pcomment = new StringProperty(comment, QLatin1String("comment"));
        pcomment->setParent(this);
        m_properties << pcomment;
    }
}

bool StringProperty::checkValidObjectName() const
{
    return m_checkValidObjectName;
}

void StringProperty::setCheckValidObjectName(bool b)
{
    m_checkValidObjectName = b;
}

bool StringProperty::allowScope() const
{
    return m_allowScope;
}

void StringProperty::setAllowScope(bool b)
{
    m_allowScope = b;
}

QVariant StringProperty::value() const
{
    return m_value;
}

void StringProperty::setValue(const QVariant &value)
{
    m_value = value.toString();
}

QString StringProperty::toString() const
{
    return m_value;
}

bool StringProperty::hasEditor() const
{
    return true;
}

QWidget *StringProperty::createEditor(QWidget *parent, const QObject *target, const char *receiver) const
{
    QLineEdit *lineEdit = new QLineEdit(parent);
    lineEdit->setFrame(0);

    if (checkValidObjectName()) {
        QString rx = allowScope() ? QString("[_a-zA-Z:][_a-zA-Z0-9:]*") : QString("[_a-zA-Z][_a-zA-Z0-9]*");
        lineEdit->setValidator(new QRegExpValidator(QRegExp(rx), lineEdit));
    }

    QObject::connect(lineEdit, SIGNAL(textChanged(QString)), target, receiver);
    return lineEdit;
}

void StringProperty::updateEditorContents(QWidget *editor)
{
    if (QLineEdit *lineEdit = qobject_cast<QLineEdit*>(editor)) {
        if (lineEdit->text() != m_value)
            lineEdit->setText(m_value);
    }
}

void StringProperty::updateValue(QWidget *editor)
{
    if (QLineEdit *lineEdit = qobject_cast<QLineEdit*>(editor)) {
        QString newValue = lineEdit->text();

        if (newValue != m_value) {
            m_value = newValue;
            setChanged(true);
        }

    }
}


// -------------------------------------------------------------------------
ListProperty::ListProperty(const QStringList &items, int value, const QString &name)
    : AbstractProperty<int>(value, name), m_items(items)
{
}

QStringList ListProperty::items() const
{
    return m_items;
}

void ListProperty::setValue(const QVariant &value)
{
    m_value = value.toInt();
}

QString ListProperty::toString() const
{
    if (m_items.isEmpty())
        return QString();
    else if (m_value < 0 || m_value >= m_items.count())
        return m_items.first();

    return m_items.at(m_value);
}

QWidget *ListProperty::createEditor(QWidget *parent, const QObject *target, const char *receiver) const
{
    QComboBox *combo = new QComboBox(parent);
    combo->view()->setTextElideMode(Qt::ElideLeft);
    combo->setFrame(0);

    combo->addItems(items());
    QObject::connect(combo, SIGNAL(activated(int)), target, receiver);
    return combo;
}

void ListProperty::updateEditorContents(QWidget *editor)
{
    if (QComboBox *combo = qobject_cast<QComboBox*>(editor)) {
        combo->setCurrentIndex(m_value);
    }
}

void ListProperty::updateValue(QWidget *editor)
{
    if (QComboBox *combo = qobject_cast<QComboBox*>(editor)) {
        int newValue = combo->currentIndex();

        if (newValue != m_value) {
            m_value = newValue;
            setChanged(true);
        }
    }
}

// -------------------------------------------------------------------------
SizeProperty::SizeProperty(const QSize &value, const QString &name)
    : AbstractPropertyGroup(name)
{
    IntProperty *pw = new IntProperty(value.width(), QLatin1String("width"));
    pw->setFake(true);
    pw->setParent(this);
    pw->setRange(0, INT_MAX);

    IntProperty *ph = new IntProperty(value.height(), QLatin1String("height"));
    ph->setFake(true);
    ph->setParent(this);
    ph->setRange(0, INT_MAX);

    m_properties << pw << ph;
}

QVariant SizeProperty::value() const
{
    return QSize(propertyAt(0)->value().toInt(),
                 propertyAt(1)->value().toInt());
}

void SizeProperty::setValue(const QVariant &value)
{
    QSize pt = value.toSize();
    propertyAt(0)->setValue(pt.width());
    propertyAt(1)->setValue(pt.height());
}

// -------------------------------------------------------------------------
// QIntPropertySpinBox also emits editingFinished when the spinbox is used
class QIntPropertySpinBox: public QSpinBox
{
public:
    QIntPropertySpinBox(QWidget *parent = 0)
        : QSpinBox(parent) { }

    void stepBy(int steps)
    {
        QSpinBox::stepBy(steps);
        emit editingFinished();
    }
};

IntProperty::IntProperty(int value, const QString &name)
    : AbstractProperty<int>(value, name), m_low(INT_MIN), m_hi(INT_MAX)
{
}

void IntProperty::setRange(int low, int hi)
{
    m_low = low;
    m_hi = hi;
}

QString IntProperty::specialValue() const
{