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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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** Contact: Nokia Corporation (qt-info@nokia.com)

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** This file is part of the Qt Designer of the Qt Toolkit.

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** contained in the Technology Preview License Agreement accompanying

** this package.

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** General Public License version 2.1 as published by the Free Software

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** packaging of this file.  Please review the following information to

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** $QT_END_LICENSE$

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****************************************************************************/

#include "formwindowbase_p.h"

#include "connectionedit_p.h"

#include "qdesigner_command_p.h"

#include "qdesigner_propertysheet_p.h"

#include "qdesigner_propertyeditor_p.h"

#include "qdesigner_menu_p.h"

#include "qdesigner_menubar_p.h"

#include "shared_settings_p.h"

#include "grid_p.h" 

#include "deviceprofile_p.h"

#include "qdesigner_utils_p.h"

#include "qsimpleresource_p.h"

#include <QtDesigner/QDesignerFormEditorInterface>

#include <QtDesigner/QDesignerContainerExtension>

#include <QtDesigner/QExtensionManager>

#include <QtDesigner/QDesignerTaskMenuExtension>

#include <QtCore/qdebug.h>

#include <QtCore/QList>

#include <QtCore/QTimer>

#include <QtGui/QMenu>

#include <QtGui/QListWidget>

#include <QtGui/QTreeWidget>

#include <QtGui/QTableWidget>

#include <QtGui/QComboBox>

#include <QtGui/QTabWidget>

#include <QtGui/QToolBox>

#include <QtGui/QToolBar>

#include <QtGui/QStatusBar>

#include <QtGui/QMenu>

#include <QtGui/QAction>

QT_BEGIN_NAMESPACE

namespace qdesigner_internal {

class FormWindowBasePrivate {

public:

    explicit FormWindowBasePrivate(QDesignerFormEditorInterface *core);

    static Grid m_defaultGrid;

    QDesignerFormWindowInterface::Feature m_feature;

    Grid m_grid;

    bool m_hasFormGrid;

    DesignerPixmapCache *m_pixmapCache;

    DesignerIconCache *m_iconCache;

    QtResourceSet *m_resourceSet;

    QMap<QDesignerPropertySheet *, QMap<int, bool> > m_reloadableResources; // bool is dummy, QMap used as QSet

    QMap<QDesignerPropertySheet *, QObject *> m_reloadablePropertySheets;

    const DeviceProfile m_deviceProfile;

    FormWindowBase::LineTerminatorMode m_lineTerminatorMode;

    FormWindowBase::SaveResourcesBehaviour m_saveResourcesBehaviour;

};

FormWindowBasePrivate::FormWindowBasePrivate(QDesignerFormEditorInterface *core) :

    m_feature(QDesignerFormWindowInterface::DefaultFeature),

    m_grid(m_defaultGrid),

    m_hasFormGrid(false),

    m_pixmapCache(0),

    m_iconCache(0),

    m_resourceSet(0),

    m_deviceProfile(QDesignerSharedSettings(core).currentDeviceProfile()),

    m_lineTerminatorMode(FormWindowBase::NativeLineTerminator),

    m_saveResourcesBehaviour(FormWindowBase::SaveAll)

{

}

Grid FormWindowBasePrivate::m_defaultGrid;

FormWindowBase::FormWindowBase(QDesignerFormEditorInterface *core, QWidget *parent, Qt::WindowFlags flags) :

    QDesignerFormWindowInterface(parent, flags),

    m_d(new FormWindowBasePrivate(core))

{

    syncGridFeature();

    m_d->m_pixmapCache = new DesignerPixmapCache(this);

    m_d->m_iconCache = new DesignerIconCache(m_d->m_pixmapCache, this);

}

FormWindowBase::~FormWindowBase()

{

    delete m_d;

}

DesignerPixmapCache *FormWindowBase::pixmapCache() const

{

    return m_d->m_pixmapCache;

}

DesignerIconCache *FormWindowBase::iconCache() const

{

    return m_d->m_iconCache;

}

QtResourceSet *FormWindowBase::resourceSet() const

{

    return m_d->m_resourceSet;

}

void FormWindowBase::setResourceSet(QtResourceSet *resourceSet)

{

    m_d->m_resourceSet = resourceSet;

}

void FormWindowBase::addReloadableProperty(QDesignerPropertySheet *sheet, int index)

{

    m_d->m_reloadableResources[sheet][index] = true;

}

void FormWindowBase::removeReloadableProperty(QDesignerPropertySheet *sheet, int index)

{

    m_d->m_reloadableResources[sheet].remove(index);

    if (m_d->m_reloadableResources[sheet].count() == 0)

        m_d->m_reloadableResources.remove(sheet);

}

void FormWindowBase::addReloadablePropertySheet(QDesignerPropertySheet *sheet, QObject *object)

{

    if (qobject_cast<QTreeWidget *>(object) ||

            qobject_cast<QTableWidget *>(object) ||

            qobject_cast<QListWidget *>(object) ||

            qobject_cast<QComboBox *>(object))

        m_d->m_reloadablePropertySheets[sheet] = object;

}

void FormWindowBase::removeReloadablePropertySheet(QDesignerPropertySheet *sheet)

{

    m_d->m_reloadablePropertySheets.remove(sheet);

}

void FormWindowBase::reloadProperties()

{

    pixmapCache()->clear();

    iconCache()->clear();

    QMapIterator<QDesignerPropertySheet *, QMap<int, bool> > itSheet(m_d->m_reloadableResources);

    while (itSheet.hasNext()) {

        QDesignerPropertySheet *sheet = itSheet.next().key();

        QMapIterator<int, bool> itIndex(itSheet.value());

        while (itIndex.hasNext()) {

            const int index = itIndex.next().key();

            sheet->setProperty(index, sheet->property(index));

        }

        if (QTabWidget *tabWidget = qobject_cast<QTabWidget *>(sheet->object())) {

            const int count = tabWidget->count();

            const int current = tabWidget->currentIndex();

            const QString currentTabIcon = QLatin1String("currentTabIcon");

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

                tabWidget->setCurrentIndex(i);

                const int index = sheet->indexOf(currentTabIcon);

                sheet->setProperty(index, sheet->property(index));

            }

            tabWidget->setCurrentIndex(current);

        } else if (QToolBox *toolBox = qobject_cast<QToolBox *>(sheet->object())) {

            const int count = toolBox->count();

            const int current = toolBox->currentIndex();

            const QString currentItemIcon = QLatin1String("currentItemIcon");

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

                toolBox->setCurrentIndex(i);

                const int index = sheet->indexOf(currentItemIcon);

                sheet->setProperty(index, sheet->property(index));

            }

            toolBox->setCurrentIndex(current);

        }

    }

    QMapIterator<QDesignerPropertySheet *, QObject *> itSh(m_d->m_reloadablePropertySheets);

    while (itSh.hasNext()) {

        QObject *object = itSh.next().value();

        reloadIconResources(iconCache(), object);

    }

}

void FormWindowBase::resourceSetActivated(QtResourceSet *resource, bool resourceSetChanged)

{

    if (resource == resourceSet() && resourceSetChanged) {

        reloadProperties();

        emit pixmapCache()->reloaded();

        emit iconCache()->reloaded();

        if (QDesignerPropertyEditor *propertyEditor = qobject_cast<QDesignerPropertyEditor *>(core()->propertyEditor()))

            propertyEditor->reloadResourceProperties();

    }

}

QVariantMap FormWindowBase::formData()

{

    QVariantMap rc;

    if (m_d->m_hasFormGrid)

        m_d->m_grid.addToVariantMap(rc, true);

    return rc;

}

void FormWindowBase::setFormData(const QVariantMap &vm)

{

    Grid formGrid;

    m_d->m_hasFormGrid = formGrid.fromVariantMap(vm);

    if (m_d->m_hasFormGrid)

         m_d->m_grid = formGrid;

}

QPoint FormWindowBase::grid() const

{

    return QPoint(m_d->m_grid.deltaX(), m_d->m_grid.deltaY());

}

void FormWindowBase::setGrid(const QPoint &grid)

{

    m_d->m_grid.setDeltaX(grid.x());

    m_d->m_grid.setDeltaY(grid.y());

}

bool FormWindowBase::hasFeature(Feature f) const

{

    return f & m_d->m_feature;

}

static void recursiveUpdate(QWidget *w)

{

    w->update();

    const QObjectList &l = w->children();

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

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

        if (QWidget *w = qobject_cast<QWidget*>(*it))

            recursiveUpdate(w);

    }

}

void FormWindowBase::setFeatures(Feature f)

{

    m_d->m_feature = f;

    const bool enableGrid = f & GridFeature;

    m_d->m_grid.setVisible(enableGrid);

    m_d->m_grid.setSnapX(enableGrid);

    m_d->m_grid.setSnapY(enableGrid);

    emit featureChanged(f);

    recursiveUpdate(this);

}

FormWindowBase::Feature FormWindowBase::features() const

{

    return m_d->m_feature;

}

bool FormWindowBase::gridVisible() const

{

    return m_d->m_grid.visible() && currentTool() == 0;

}

FormWindowBase::SaveResourcesBehaviour FormWindowBase::saveResourcesBehaviour() const

{

    return m_d->m_saveResourcesBehaviour;

}

void FormWindowBase::setSaveResourcesBehaviour(SaveResourcesBehaviour behaviour)

{

    m_d->m_saveResourcesBehaviour = behaviour;

}

void FormWindowBase::syncGridFeature()

{

    if (m_d->m_grid.snapX() || m_d->m_grid.snapY())

        m_d->m_feature |= GridFeature;

    else

        m_d->m_feature &= ~GridFeature;

}

void FormWindowBase::setDesignerGrid(const  Grid& grid)

{

    m_d->m_grid = grid;

    syncGridFeature();

    recursiveUpdate(this);

}

const Grid &FormWindowBase::designerGrid() const

{

    return m_d->m_grid;

}

bool FormWindowBase::hasFormGrid() const

{

    return m_d->m_hasFormGrid;

}

void FormWindowBase::setHasFormGrid(bool b)

{

    m_d->m_hasFormGrid = b;

}

void FormWindowBase::setDefaultDesignerGrid(const Grid& grid)

{

    FormWindowBasePrivate::m_defaultGrid = grid;

}

const Grid &FormWindowBase::defaultDesignerGrid()

{

    return FormWindowBasePrivate::m_defaultGrid;

}

QMenu *FormWindowBase::initializePopupMenu(QWidget * /*managedWidget*/)

{

    return 0;

}

// Widget under mouse for finding the Widget to highlight

// when doing DnD. Restricts to pages by geometry if a container with

// a container extension (or one of its helper widgets) is hit; otherwise

// returns the widget as such (be it managed/unmanaged)

QWidget *FormWindowBase::widgetUnderMouse(const QPoint &formPos, WidgetUnderMouseMode /* wum */)

{

    // widget_under_mouse might be some temporary thing like the dropLine. We need

    // the actual widget that's part of the edited GUI.

    QWidget *rc = widgetAt(formPos);

    if (!rc || qobject_cast<ConnectionEdit*>(rc))

        return 0;

    if (rc == mainContainer()) {

        // Refuse main container areas if the main container has a container extension,

        // for example when hitting QToolBox/QTabWidget empty areas.

        if (qt_extension<QDesignerContainerExtension*>(core()->extensionManager(), rc))

            return 0;

        return rc;

    }

    // If we hit on container extension type container, make sure

    // we use the top-most current page

    if (QWidget *container = findContainer(rc, false))

        if (QDesignerContainerExtension *c = qt_extension<QDesignerContainerExtension*>(core()->extensionManager(), container)) {

            // For container that do not have a "stacked" nature (QToolBox, QMdiArea),

            // make sure the position is within the current page

            const int ci = c->currentIndex();

            if (ci < 0)

                return 0;

            QWidget *page = c->widget(ci);

            QRect pageGeometry = page->geometry();

            pageGeometry.moveTo(page->mapTo(this, pageGeometry.topLeft()));

            if (!pageGeometry.contains(formPos))

                return 0;

            return page;

        }

    return rc;

}

void FormWindowBase::deleteWidgetList(const QWidgetList &widget_list)

{

    // We need a macro here even for single widgets because the some components (for example,

    // the signal slot editor are connected to widgetRemoved() and add their

    // own commands (for example, to delete w's connections)

    const QString description = widget_list.size() == 1 ?

        tr("Delete '%1'").arg(widget_list.front()->objectName()) : tr("Delete");

    commandHistory()->beginMacro(description);

    foreach (QWidget *w, widget_list) {

        emit widgetRemoved(w);

        DeleteWidgetCommand *cmd = new DeleteWidgetCommand(this);

        cmd->init(w);

        commandHistory()->push(cmd);

    }

    commandHistory()->endMacro();

}

QMenu *FormWindowBase::createExtensionTaskMenu(QDesignerFormWindowInterface *fw, QObject *o, bool trailingSeparator)

{

    typedef QList<QAction *> ActionList;

    ActionList actions;

    // 1) Standard public extension

    QExtensionManager *em = fw->core()->extensionManager();

    if (const QDesignerTaskMenuExtension *extTaskMenu = qt_extension<QDesignerTaskMenuExtension*>(em, o))

        actions += extTaskMenu->taskActions();

    if (const QDesignerTaskMenuExtension *intTaskMenu = qobject_cast<QDesignerTaskMenuExtension *>(em->extension(o, QLatin1String("QDesignerInternalTaskMenuExtension")))) {

        if (!actions.empty()) {

            QAction *a = new QAction(fw);

            a->setSeparator(true);

            actions.push_back(a);

        }

        actions += intTaskMenu->taskActions();

    }

    if (actions.empty())

        return 0;

    if (trailingSeparator && !actions.back()->isSeparator()) {

        QAction *a  = new QAction(fw);

        a->setSeparator(true);

        actions.push_back(a);

    }

    QMenu *rc = new QMenu;

    const ActionList::const_iterator cend = actions.constEnd();

    for (ActionList::const_iterator it = actions.constBegin(); it != cend; ++it)

        rc->addAction(*it);

    return rc;

}

void FormWindowBase::emitObjectRemoved(QObject *o)

{

    emit objectRemoved(o);

}

DeviceProfile FormWindowBase::deviceProfile() const

{

    return m_d->m_deviceProfile;

}

QString FormWindowBase::styleName() const

{

    return m_d->m_deviceProfile.isEmpty() ? QString() : m_d->m_deviceProfile.style();

}

void FormWindowBase::emitWidgetRemoved(QWidget *w)

{

    emit widgetRemoved(w);

}

QString FormWindowBase::deviceProfileName() const

{

    return m_d->m_deviceProfile.isEmpty() ? QString() : m_d->m_deviceProfile.name();

}

void FormWindowBase::setLineTerminatorMode(FormWindowBase::LineTerminatorMode mode)

{

    m_d->m_lineTerminatorMode = mode;

}

FormWindowBase::LineTerminatorMode FormWindowBase::lineTerminatorMode() const

{

    return m_d->m_lineTerminatorMode;

}

void FormWindowBase::triggerDefaultAction(QWidget *widget)

{

    if (QAction *action = qdesigner_internal::preferredEditAction(core(), widget))

        QTimer::singleShot(0, action, SIGNAL(triggered()));

}

void FormWindowBase::setupDefaultAction(QDesignerFormWindowInterface *fw)

{

    QObject::connect(fw, SIGNAL(activated(QWidget*)), fw, SLOT(triggerDefaultAction(QWidget*)));

}

QString FormWindowBase::fileContents() const

{

    const bool oldValue = QSimpleResource::setWarningsEnabled(false);

    const QString rc = contents();

    QSimpleResource::setWarningsEnabled(oldValue);

    return rc;

}

} // namespace qdesigner_internal

QT_END_NAMESPACE