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path: root/tools/designer/src/components/propertyeditor/brushpropertymanager.cpp
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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "brushpropertymanager.h"
#include "qtpropertymanager.h"
#include "qtvariantproperty.h"
#include "qtpropertybrowserutils_p.h"

#include <QtCore/QCoreApplication>
#include <QtCore/QVariant>
#include <QtCore/QString>

static const char *brushStyles[] = {
QT_TRANSLATE_NOOP("BrushPropertyManager", "No brush"),
QT_TRANSLATE_NOOP("BrushPropertyManager", "Solid"),
QT_TRANSLATE_NOOP("BrushPropertyManager", "Dense 1"),
QT_TRANSLATE_NOOP("BrushPropertyManager", "Dense 2"),
QT_TRANSLATE_NOOP("BrushPropertyManager", "Dense 3"),
QT_TRANSLATE_NOOP("BrushPropertyManager", "Dense 4"),
QT_TRANSLATE_NOOP("BrushPropertyManager", "Dense 5"),
QT_TRANSLATE_NOOP("BrushPropertyManager", "Dense 6"),
QT_TRANSLATE_NOOP("BrushPropertyManager", "Dense 7"),
QT_TRANSLATE_NOOP("BrushPropertyManager", "Horizontal"),
QT_TRANSLATE_NOOP("BrushPropertyManager", "Vertical"),
QT_TRANSLATE_NOOP("BrushPropertyManager", "Cross"),
QT_TRANSLATE_NOOP("BrushPropertyManager", "Backward diagonal"),
QT_TRANSLATE_NOOP("BrushPropertyManager", "Forward diagonal"),
QT_TRANSLATE_NOOP("BrushPropertyManager", "Crossing diagonal"),
};

QT_BEGIN_NAMESPACE

namespace qdesigner_internal {

BrushPropertyManager::BrushPropertyManager()
{
}

int BrushPropertyManager::brushStyleToIndex(Qt::BrushStyle st)
{
    switch (st) {
    case Qt::NoBrush:       return 0;
    case Qt::SolidPattern:  return 1;
    case Qt::Dense1Pattern: return 2;
    case Qt::Dense2Pattern: return 3;
    case Qt::Dense3Pattern: return 4;
    case Qt::Dense4Pattern: return 5;
    case Qt::Dense5Pattern: return 6;
    case Qt::Dense6Pattern: return 7;
    case Qt::Dense7Pattern: return 8;
    case Qt::HorPattern:    return 9;
    case Qt::VerPattern:    return 10;
    case Qt::CrossPattern:  return 11;
    case Qt::BDiagPattern:  return 12;
    case Qt::FDiagPattern:  return 13;
    case Qt::DiagCrossPattern:       return 14;
    default: break;
    }
    return 0;
}

Qt::BrushStyle BrushPropertyManager::brushStyleIndexToStyle(int brushStyleIndex)
{
    switch (brushStyleIndex) {
    case  0: return Qt::NoBrush;
    case  1: return Qt::SolidPattern;
    case  2: return Qt::Dense1Pattern;
    case  3: return Qt::Dense2Pattern;
    case  4: return Qt::Dense3Pattern;
    case  5: return Qt::Dense4Pattern;
    case  6: return Qt::Dense5Pattern;
    case  7: return Qt::Dense6Pattern;
    case  8: return Qt::Dense7Pattern;
    case  9: return Qt::HorPattern;
    case 10: return Qt::VerPattern;
    case 11: return Qt::CrossPattern;
    case 12: return Qt::BDiagPattern;
    case 13: return Qt::FDiagPattern;
    case 14: return Qt::DiagCrossPattern;
    }
    return Qt::NoBrush;
}


typedef QMap<int, QIcon> EnumIndexIconMap;

static void clearBrushIcons();
Q_GLOBAL_STATIC_WITH_INITIALIZER(EnumIndexIconMap, brushIcons, qAddPostRoutine(clearBrushIcons))

static void clearBrushIcons()
{
    brushIcons()->clear();
}

const BrushPropertyManager::EnumIndexIconMap &BrushPropertyManager::brushStyleIcons()
{
    // Create a map of icons for the brush style editor
    if (brushIcons()->empty()) {
        const int brushStyleCount = sizeof(brushStyles)/sizeof(const char *);
        QBrush brush(Qt::black);
        const QIcon solidIcon = QtPropertyBrowserUtils::brushValueIcon(brush);
        for (int i = 0; i < brushStyleCount; i++) {
            const Qt::BrushStyle style = brushStyleIndexToStyle(i);
            brush.setStyle(style);
            brushIcons()->insert(i, QtPropertyBrowserUtils::brushValueIcon(brush));
        }
    }
    return *(brushIcons());
}

QString BrushPropertyManager::brushStyleIndexToString(int brushStyleIndex)
{
    const int brushStyleCount = sizeof(brushStyles)/sizeof(const char *);
    return brushStyleIndex < brushStyleCount ? QCoreApplication::translate("BrushPropertyManager", brushStyles[brushStyleIndex]) :  QString();
}

void BrushPropertyManager::initializeProperty(QtVariantPropertyManager *vm, QtProperty *property, int enumTypeId)
{
    m_brushValues.insert(property, QBrush());
    // style
    QtVariantProperty *styleSubProperty = vm->addProperty(enumTypeId, QCoreApplication::translate("BrushPropertyManager", "Style"));
    property->addSubProperty(styleSubProperty);
    QStringList styles;
    const int brushStyleCount = sizeof(brushStyles)/sizeof(const char *);
    for (int i = 0; i < brushStyleCount; i++)
        styles.push_back(QCoreApplication::translate("BrushPropertyManager", brushStyles[i]));
    styleSubProperty->setAttribute(QLatin1String("enumNames"), styles);
    styleSubProperty->setAttribute(QLatin1String("enumIcons"), QVariant::fromValue(brushStyleIcons()));
    m_brushPropertyToStyleSubProperty.insert(property, styleSubProperty);
    m_brushStyleSubPropertyToProperty.insert(styleSubProperty, property);
    // color
    QtVariantProperty *colorSubProperty = vm->addProperty(QVariant::Color, QCoreApplication::translate("BrushPropertyManager", "Color"));
    property->addSubProperty(colorSubProperty);
    m_brushPropertyToColorSubProperty.insert(property, colorSubProperty);
    m_brushColorSubPropertyToProperty.insert(colorSubProperty, property);
}

bool BrushPropertyManager::uninitializeProperty(QtProperty *property)
{
    const PropertyBrushMap::iterator brit = m_brushValues.find(property); // Brushes
    if (brit == m_brushValues.end())
        return false;
    m_brushValues.erase(brit);
    // style
    PropertyToPropertyMap::iterator subit = m_brushPropertyToStyleSubProperty.find(property);
    if (subit != m_brushPropertyToStyleSubProperty.end()) {
        QtProperty *styleProp = subit.value();
        m_brushStyleSubPropertyToProperty.remove(styleProp);
        m_brushPropertyToStyleSubProperty.erase(subit);
        delete styleProp;
    }
    // color
    subit = m_brushPropertyToColorSubProperty.find(property);
    if (subit != m_brushPropertyToColorSubProperty.end()) {
        QtProperty *colorProp = subit.value();
        m_brushColorSubPropertyToProperty.remove(colorProp);
        m_brushPropertyToColorSubProperty.erase(subit);
        delete colorProp;
    }
    return true;
}

void BrushPropertyManager::slotPropertyDestroyed(QtProperty *property)
{
    PropertyToPropertyMap::iterator subit = m_brushStyleSubPropertyToProperty.find(property);
    if (subit != m_brushStyleSubPropertyToProperty.end()) {
        m_brushPropertyToStyleSubProperty[subit.value()] = 0;
        m_brushStyleSubPropertyToProperty.erase(subit);
    }
    subit = m_brushColorSubPropertyToProperty.find(property);
    if (subit != m_brushColorSubPropertyToProperty.end()) {
        m_brushPropertyToColorSubProperty[subit.value()] = 0;
        m_brushColorSubPropertyToProperty.erase(subit);
    }
}


BrushPropertyManager::ValueChangedResult BrushPropertyManager::valueChanged(QtVariantPropertyManager *vm, QtProperty *property, const QVariant &value)
{
    switch (value.type()) {
    case QVariant::Int: // Style subproperty?
        if (QtProperty *brushProperty = m_brushStyleSubPropertyToProperty.value(property, 0)) {
            const QBrush oldValue = m_brushValues.value(brushProperty);
            QBrush newBrush = oldValue;
            const int index = value.toInt();
            newBrush.setStyle(brushStyleIndexToStyle(index));
            if (newBrush == oldValue)
                return Unchanged;
            vm->variantProperty(brushProperty)->setValue(newBrush);
            return Changed;
        }
        break;
    case QVariant::Color: // Color  subproperty?
        if (QtProperty *brushProperty = m_brushColorSubPropertyToProperty.value(property, 0)) {
            const QBrush oldValue = m_brushValues.value(brushProperty);
            QBrush newBrush = oldValue;
            newBrush.setColor(qvariant_cast<QColor>(value));
            if (newBrush == oldValue)
                return Unchanged;
            vm->variantProperty(brushProperty)->setValue(newBrush);
            return Changed;
        }
        break;
    default:
        break;
    }
    return NoMatch;
}

BrushPropertyManager::ValueChangedResult BrushPropertyManager::setValue(QtVariantPropertyManager *vm, QtProperty *property, const QVariant &value)
{
    if (value.type() != QVariant::Brush)
        return NoMatch;
    const PropertyBrushMap::iterator brit = m_brushValues.find(property);
    if (brit == m_brushValues.end())
        return NoMatch;

    const QBrush newBrush = qvariant_cast<QBrush>(value);
    if (newBrush == brit.value())
        return Unchanged;
    brit.value() = newBrush;
    if (QtProperty *styleProperty = m_brushPropertyToStyleSubProperty.value(property))
        vm->variantProperty(styleProperty)->setValue(brushStyleToIndex(newBrush.style()));
    if (QtProperty *colorProperty = m_brushPropertyToColorSubProperty.value(property))
        vm->variantProperty(colorProperty)->setValue(newBrush.color());

    return Changed;
}

bool BrushPropertyManager::valueText(const QtProperty *property, QString *text) const
{
    const PropertyBrushMap::const_iterator brit = m_brushValues.constFind(const_cast<QtProperty *>(property));
    if (brit == m_brushValues.constEnd())
        return false;
    const QBrush &brush = brit.value();
    const QString styleName = brushStyleIndexToString(brushStyleToIndex(brush.style()));
    *text = QCoreApplication::translate("BrushPropertyManager", "[%1, %2]").arg(styleName).arg(QtPropertyBrowserUtils::colorValueText(brush.color()));
    return true;
}

bool BrushPropertyManager::valueIcon(const QtProperty *property, QIcon *icon) const
{
    const PropertyBrushMap::const_iterator brit = m_brushValues.constFind(const_cast<QtProperty *>(property));
    if (brit == m_brushValues.constEnd())
        return false;
    *icon = QtPropertyBrowserUtils::brushValueIcon(brit.value());
    return true;
}

bool BrushPropertyManager::value(const QtProperty *property, QVariant *v) const
{
    const PropertyBrushMap::const_iterator brit = m_brushValues.constFind(const_cast<QtProperty *>(property));
    if (brit == m_brushValues.constEnd())
        return false;
    qVariantSetValue(*v, brit.value());
    return true;
}
}

QT_END_NAMESPACE