/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:   Multiselection dialog

*

*/

#include <hbaction.h>

#include <hblabel.h>

#include <hbpushbutton.h>

#include <hgwidgets/hgwidgets.h>

#include <QGraphicsLinearLayout>

#include "hgselectiondialog.h"

#include "trace.h"

HgSelectionDialog::HgSelectionDialog(

    const QString &title, const QString &primaryText,

    HgWidget *content, QGraphicsItem *parent) :

    HbDialog(parent),

    mHgWidget(content),

    mSelectAll(new HbPushButton("---")),

    mCountLabel(new HbLabel("--/--"))

{

    FUNC_LOG;

    setDismissPolicy(HbDialog::NoDismiss);

    setTimeout(HbDialog::NoTimeout);

    setHeadingWidget(new HbLabel(title, this));

    setPrimaryAction(new HbAction(primaryText, this));

    primaryAction()->setDisabled(true);

    setSecondaryAction(new HbAction("Cancel", this));

    connect(content->selectionModel(),

            SIGNAL(selectionChanged(QItemSelection, QItemSelection)),

            SLOT(updateItems()));

    connect(content->model(),

            SIGNAL(rowsInserted(QModelIndex, int, int)),

            SLOT(updateItems()));

    connect(content->model(),

            SIGNAL(rowsRemoved(QModelIndex, int, int)),

            SLOT(updateItems()));

    HbWidget *contentWidget = new HbWidget;

    HANDLE_ERROR_NULL(contentWidget);

    if (contentWidget) {

        QGraphicsLinearLayout *contentLayout = new QGraphicsLinearLayout(Qt::Vertical);

        HANDLE_ERROR_NULL(contentLayout);

        if (contentLayout) {

            QGraphicsLinearLayout *topLayout = new QGraphicsLinearLayout(Qt::Horizontal);

            HANDLE_ERROR_NULL(topLayout);

            if (topLayout) {

                HANDLE_ERROR_NULL(mSelectAll);

                if (mSelectAll) {

                    topLayout->addItem(mSelectAll);

                    connect(mSelectAll, SIGNAL(clicked()), SLOT(selectAll()));

                }

                if (mCountLabel) {

                    mCountLabel->setAlignment(Qt::AlignRight);

                    topLayout->addItem(mCountLabel);

                }

                contentLayout->addItem(topLayout);

            }

            contentLayout->addItem(mHgWidget);

            contentWidget->setLayout(contentLayout);

        }

        setContentWidget(contentWidget);

    }

    updateItems();

}

HgSelectionDialog::~HgSelectionDialog()

{

    FUNC_LOG;

}

void HgSelectionDialog::updateItems()

{

    FUNC_LOG;

    if (mHgWidget) {

        QItemSelectionModel *selectionModel = mHgWidget->selectionModel();

        QAbstractItemModel *model = mHgWidget->model();

        if (selectionModel && model) {

            primaryAction()->setEnabled(selectionModel->hasSelection());

            int selectedCount = selectionModel->selectedIndexes().count();

            int itemCount = model->rowCount();

            if (selectedCount == itemCount) {

                mSelectAll->setText("Unselect all");

                mSelectAll->setChecked(false);

            }

            else {

                mSelectAll->setText("Select all");

                mSelectAll->setChecked(false);

            }

            mCountLabel->setPlainText(tr("%1/%2").arg(selectedCount).arg(itemCount));

        }

    }

}

void HgSelectionDialog::selectAll()

{

    FUNC_LOG;

    if (mHgWidget) {

        QItemSelectionModel *selectionModel = mHgWidget->selectionModel();

        QAbstractItemModel *model = mHgWidget->model();

        if (selectionModel && model) {

            int selectedCount = selectionModel->selectedIndexes().count();

            int itemCount = model->rowCount();

            if (selectedCount == itemCount) {

                mHgWidget->clearSelection();

            }

            else {

                mHgWidget->selectAll();

            }

        }

    }

}