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#include "qdesigner_toolbox_p.h"

#include "qdesigner_command_p.h"

#include "orderdialog_p.h"

#include "promotiontaskmenu_p.h"

#include "formwindowbase_p.h"

#include <QtDesigner/QDesignerFormWindowInterface>

#include <QtCore/QEvent>

#include <QtGui/QAction>

#include <QtGui/QToolBox>

#include <QtGui/QMenu>

#include <QtGui/QLayout>

#include <QtGui/QApplication>

#include <QtGui/QContextMenuEvent>

#include <QtCore/QHash>

QT_BEGIN_NAMESPACE

QToolBoxHelper::QToolBoxHelper(QToolBox *toolbox) :

    QObject(toolbox),

    m_toolbox(toolbox),

    m_actionDeletePage(new QAction(tr("Delete Page"), this)),

    m_actionInsertPage(new QAction(tr("Before Current Page"), this)),

    m_actionInsertPageAfter(new QAction(tr("After Current Page"), this)),

    m_actionChangePageOrder(new QAction(tr("Change Page Order..."), this)),

    m_pagePromotionTaskMenu(new qdesigner_internal::PromotionTaskMenu(0, qdesigner_internal::PromotionTaskMenu::ModeSingleWidget, this))

{

    connect(m_actionDeletePage, SIGNAL(triggered()), this, SLOT(removeCurrentPage()));

    connect(m_actionInsertPage, SIGNAL(triggered()), this, SLOT(addPage()));

    connect(m_actionInsertPageAfter, SIGNAL(triggered()), this, SLOT(addPageAfter()));

    connect(m_actionChangePageOrder, SIGNAL(triggered()), this, SLOT(changeOrder()));

    m_toolbox->installEventFilter(this);

}

void QToolBoxHelper::install(QToolBox *toolbox)

{

    new QToolBoxHelper(toolbox);

}

bool QToolBoxHelper::eventFilter(QObject *watched, QEvent *event)

{

    switch (event->type()) {

    case QEvent::ChildPolished:

        // Install on the buttons

        if (watched == m_toolbox) {

            QChildEvent *ce = static_cast<QChildEvent *>(event);

            if (!qstrcmp(ce->child()->metaObject()->className(), "QToolBoxButton"))

                ce->child()->installEventFilter(this);

        }

        break;

    case QEvent::ContextMenu:

        if (watched != m_toolbox) {

            // An action invoked from the passive interactor (ToolBox button) might

            // cause its deletion within its event handler, triggering a warning. Re-post

            // the event to the toolbox.

            QContextMenuEvent *current = static_cast<QContextMenuEvent *>(event);

            QContextMenuEvent *copy = new QContextMenuEvent(current->reason(), current->pos(), current-> globalPos(), current->modifiers());

            QApplication::postEvent(m_toolbox, copy);

            current->accept();

            return true;

        }

        break;

    case QEvent::MouseButtonRelease:

        if (watched != m_toolbox)

            if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(m_toolbox)) {

                fw->clearSelection();

                fw->selectWidget(m_toolbox, true);

            }

        break;

    default:

        break;

    }

    return QObject::eventFilter(watched, event);

}

QToolBoxHelper *QToolBoxHelper::helperOf(const QToolBox *toolbox)

{

    // Look for 1st order children only..otherwise, we might get filters of nested widgets

    const QObjectList children = toolbox->children();

    const QObjectList::const_iterator cend = children.constEnd();

    for (QObjectList::const_iterator it = children.constBegin(); it != cend; ++it) {

        QObject *o = *it;

        if (!o->isWidgetType())

            if (QToolBoxHelper *h = qobject_cast<QToolBoxHelper *>(o))

                return h;

    }

    return 0;

}

QMenu *QToolBoxHelper::addToolBoxContextMenuActions(const QToolBox *toolbox, QMenu *popup)

{

    QToolBoxHelper *helper = helperOf(toolbox);

    if (!helper)

        return 0;

    return helper->addContextMenuActions(popup);

}

void QToolBoxHelper::removeCurrentPage()

{

    if (m_toolbox->currentIndex() == -1 || !m_toolbox->widget(m_toolbox->currentIndex()))

        return;

    if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(m_toolbox)) {

        qdesigner_internal::DeleteToolBoxPageCommand *cmd = new qdesigner_internal::DeleteToolBoxPageCommand(fw);

        cmd->init(m_toolbox);

        fw->commandHistory()->push(cmd);

    }

}

void QToolBoxHelper::addPage()

{

    if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(m_toolbox)) {

        qdesigner_internal::AddToolBoxPageCommand *cmd = new qdesigner_internal::AddToolBoxPageCommand(fw);

        cmd->init(m_toolbox, qdesigner_internal::AddToolBoxPageCommand::InsertBefore);

        fw->commandHistory()->push(cmd);

    }

}

void QToolBoxHelper::changeOrder()

{

    QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(m_toolbox);

    if (!fw)

        return;

    const QWidgetList oldPages = qdesigner_internal::OrderDialog::pagesOfContainer(fw->core(), m_toolbox);

    const int pageCount = oldPages.size();

    if (pageCount < 2)

        return;

    qdesigner_internal::OrderDialog dlg(fw);

    dlg.setPageList(oldPages);

    if (dlg.exec() == QDialog::Rejected)

        return;

    const QWidgetList newPages = dlg.pageList();

    if (newPages == oldPages)

        return;

    fw->beginCommand(tr("Change Page Order"));

    for(int i=0; i < pageCount; ++i) {

        if (newPages.at(i) == m_toolbox->widget(i))

            continue;

        qdesigner_internal::MoveToolBoxPageCommand *cmd = new qdesigner_internal::MoveToolBoxPageCommand(fw);

        cmd->init(m_toolbox, newPages.at(i), i);

        fw->commandHistory()->push(cmd);

    }

    fw->endCommand();

}

void QToolBoxHelper::addPageAfter()

{

    if (QDesignerFormWindowInterface *fw = QDesignerFormWindowInterface::findFormWindow(m_toolbox)) {

        qdesigner_internal::AddToolBoxPageCommand *cmd = new qdesigner_internal::AddToolBoxPageCommand(fw);

        cmd->init(m_toolbox, qdesigner_internal::AddToolBoxPageCommand::InsertAfter);

        fw->commandHistory()->push(cmd);

    }

}

QPalette::ColorRole QToolBoxHelper::currentItemBackgroundRole() const

{

    const QWidget *w = m_toolbox->widget(0);

    if (!w)

        return  QPalette::Window;

    return w->backgroundRole();

}

void QToolBoxHelper::setCurrentItemBackgroundRole(QPalette::ColorRole role)

{

    const int count = m_toolbox->count();

    for (int i = 0; i < count; ++i) {

        QWidget *w = m_toolbox->widget(i);

        w->setBackgroundRole(role);

        w->update();

    }

}

QMenu *QToolBoxHelper::addContextMenuActions(QMenu *popup) const

{

    QMenu *pageMenu = 0;

    const int count = m_toolbox->count();

    m_actionDeletePage->setEnabled(count > 1);

    if (count) {

        const QString pageSubMenuLabel = tr("Page %1 of %2").arg(m_toolbox->currentIndex() + 1).arg(count);

        pageMenu = popup->addMenu(pageSubMenuLabel);

        pageMenu->addAction(m_actionDeletePage);

        // Set up promotion menu for current widget.

        if (QWidget *page =  m_toolbox->currentWidget ()) {

            m_pagePromotionTaskMenu->setWidget(page);

            m_pagePromotionTaskMenu->addActions(QDesignerFormWindowInterface::findFormWindow(m_toolbox),

                                                qdesigner_internal::PromotionTaskMenu::SuppressGlobalEdit,

                                                pageMenu);

        }

    }

    QMenu *insertPageMenu = popup->addMenu(tr("Insert Page"));

    insertPageMenu->addAction(m_actionInsertPageAfter);

    insertPageMenu->addAction(m_actionInsertPage);

    if (count > 1) {

        popup->addAction(m_actionChangePageOrder);

    }

    popup->addSeparator();

    return pageMenu;

}

// -------- QToolBoxWidgetPropertySheet

static const char *currentItemTextKey = "currentItemText";

static const char *currentItemNameKey = "currentItemName";

static const char *currentItemIconKey = "currentItemIcon";

static const char *currentItemToolTipKey = "currentItemToolTip";

static const char *tabSpacingKey = "tabSpacing";

enum { tabSpacingDefault = -1 };

QToolBoxWidgetPropertySheet::QToolBoxWidgetPropertySheet(QToolBox *object, QObject *parent) :

    QDesignerPropertySheet(object, parent),

    m_toolBox(object)

{

    createFakeProperty(QLatin1String(currentItemTextKey), qVariantFromValue(qdesigner_internal::PropertySheetStringValue()));

    createFakeProperty(QLatin1String(currentItemNameKey), QString());

    createFakeProperty(QLatin1String(currentItemIconKey), qVariantFromValue(qdesigner_internal::PropertySheetIconValue()));

    if (formWindowBase())

        formWindowBase()->addReloadableProperty(this, indexOf(QLatin1String(currentItemIconKey)));

    createFakeProperty(QLatin1String(currentItemToolTipKey), qVariantFromValue(qdesigner_internal::PropertySheetStringValue()));

    createFakeProperty(QLatin1String(tabSpacingKey), QVariant(tabSpacingDefault));

}

QToolBoxWidgetPropertySheet::ToolBoxProperty QToolBoxWidgetPropertySheet::toolBoxPropertyFromName(const QString &name)

{

    typedef QHash<QString, ToolBoxProperty> ToolBoxPropertyHash;

    static ToolBoxPropertyHash toolBoxPropertyHash;

    if (toolBoxPropertyHash.empty()) {

        toolBoxPropertyHash.insert(QLatin1String(currentItemTextKey),    PropertyCurrentItemText);

        toolBoxPropertyHash.insert(QLatin1String(currentItemNameKey),    PropertyCurrentItemName);

        toolBoxPropertyHash.insert(QLatin1String(currentItemIconKey),    PropertyCurrentItemIcon);

        toolBoxPropertyHash.insert(QLatin1String(currentItemToolTipKey), PropertyCurrentItemToolTip);

        toolBoxPropertyHash.insert(QLatin1String(tabSpacingKey),         PropertyTabSpacing);

    }

    return toolBoxPropertyHash.value(name, PropertyToolBoxNone);

}

void QToolBoxWidgetPropertySheet::setProperty(int index, const QVariant &value)

{

    const ToolBoxProperty toolBoxProperty = toolBoxPropertyFromName(propertyName(index));

    // independent of index

    switch (toolBoxProperty) {

    case PropertyTabSpacing:

        m_toolBox->layout()->setSpacing(value.toInt());

        return;

    case PropertyToolBoxNone:

        QDesignerPropertySheet::setProperty(index, value);

        return;

    default:

        break;

    }

    // index-dependent

    const int currentIndex = m_toolBox->currentIndex();

    QWidget *currentWidget = m_toolBox->currentWidget();

    if (!currentWidget)

        return;

    switch (toolBoxProperty) {

    case PropertyCurrentItemText:

        m_toolBox->setItemText(currentIndex, qvariant_cast<QString>(resolvePropertyValue(index, value)));

        m_pageToData[currentWidget].text = qVariantValue<qdesigner_internal::PropertySheetStringValue>(value);

        break;

    case PropertyCurrentItemName:

        currentWidget->setObjectName(value.toString());

        break;

    case PropertyCurrentItemIcon:

        m_toolBox->setItemIcon(currentIndex, qvariant_cast<QIcon>(resolvePropertyValue(index, value)));

        m_pageToData[currentWidget].icon = qVariantValue<qdesigner_internal::PropertySheetIconValue>(value);

        break;

    case PropertyCurrentItemToolTip:

        m_toolBox->setItemToolTip(currentIndex, qvariant_cast<QString>(resolvePropertyValue(index, value)));

        m_pageToData[currentWidget].tooltip = qVariantValue<qdesigner_internal::PropertySheetStringValue>(value);

        break;

    case PropertyTabSpacing:

    case PropertyToolBoxNone:

        break;

    }

}

bool QToolBoxWidgetPropertySheet::isEnabled(int index) const

{

    switch (toolBoxPropertyFromName(propertyName(index))) {

    case PropertyToolBoxNone:  // independent of index

    case PropertyTabSpacing:

        return QDesignerPropertySheet::isEnabled(index);

    default:

        break;

    }

    return m_toolBox->currentIndex() != -1;

}

QVariant QToolBoxWidgetPropertySheet::property(int index) const

{

    const ToolBoxProperty toolBoxProperty = toolBoxPropertyFromName(propertyName(index));

    // independent of index

    switch (toolBoxProperty) {

    case PropertyTabSpacing:

        return m_toolBox->layout()->spacing();

    case PropertyToolBoxNone:

        return QDesignerPropertySheet::property(index);

    default:

        break;

    }

    // index-dependent

    QWidget *currentWidget = m_toolBox->currentWidget();

    if (!currentWidget) {

        if (toolBoxProperty == PropertyCurrentItemIcon)

            return  qVariantFromValue(qdesigner_internal::PropertySheetIconValue());

        if (toolBoxProperty == PropertyCurrentItemText)

            return  qVariantFromValue(qdesigner_internal::PropertySheetStringValue());

        if (toolBoxProperty == PropertyCurrentItemToolTip)

            return  qVariantFromValue(qdesigner_internal::PropertySheetStringValue());

        return QVariant(QString());

    }

    // index-dependent

    switch (toolBoxProperty) {

    case PropertyCurrentItemText:

        return qVariantFromValue(m_pageToData.value(currentWidget).text);

    case PropertyCurrentItemName:

        return currentWidget->objectName();

    case PropertyCurrentItemIcon:

        return qVariantFromValue(m_pageToData.value(currentWidget).icon);

    case PropertyCurrentItemToolTip:

        return qVariantFromValue(m_pageToData.value(currentWidget).tooltip);

    case PropertyTabSpacing:

    case PropertyToolBoxNone:

        break;

    }

    return QVariant();

}

bool QToolBoxWidgetPropertySheet::reset(int index)

{

    const ToolBoxProperty toolBoxProperty = toolBoxPropertyFromName(propertyName(index));

    // independent of index

    switch (toolBoxProperty) {

    case PropertyTabSpacing:

        setProperty(index, QVariant(tabSpacingDefault));

        return true;

    case PropertyToolBoxNone:

        return QDesignerPropertySheet::reset(index);

    default:

        break;

    }

    // index-dependent

    QWidget *currentWidget = m_toolBox->currentWidget();

    if (!currentWidget)

        return false;

    // index-dependent

    switch (toolBoxProperty) {

    case PropertyCurrentItemName:

        setProperty(index, QString());

        break;

    case PropertyCurrentItemToolTip:

        m_pageToData[currentWidget].tooltip = qdesigner_internal::PropertySheetStringValue();

        setProperty(index, QString());

        break;

    case PropertyCurrentItemText:

        m_pageToData[currentWidget].text = qdesigner_internal::PropertySheetStringValue();

        setProperty(index, QString());

        break;

    case PropertyCurrentItemIcon:

        m_pageToData[currentWidget].icon = qdesigner_internal::PropertySheetIconValue();

        setProperty(index, QIcon());

        break;

    case PropertyTabSpacing:

    case PropertyToolBoxNone:

        break;

    }

    return true;

}

bool QToolBoxWidgetPropertySheet::checkProperty(const QString &propertyName)

{

    switch (toolBoxPropertyFromName(propertyName)) {

    case PropertyCurrentItemText:

    case PropertyCurrentItemName:

    case PropertyCurrentItemToolTip:

    case PropertyCurrentItemIcon:

        return false;

    default:

        break;

    }

    return true;

}

QT_END_NAMESPACE