SearchQueryView.cpp

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/*

Copyright (C) 2006-2007 by Peter Dimov.

This file is part of Calitko (http://www.calitko.org).

Calitko is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

Calitko is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Calitko; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

*/

#include "Qt.h"
#include "SearchQueryView.h"

using UIs::Searching::  SearchQueryView;

void SearchQueryView::LoadXMLSchemas ()
{
    QDir        xmlDirectory ("./xml/");
    QStringList xmlFileFilter ("*.xsd");

    QStringList xmls = xmlDirectory.entryList (xmlFileFilter, QDir::Files,
                                               QDir::Name);

    for (int xmlIdx = 0; xmlIdx < xmls.size (); xmlIdx++) {
        AdvancedSearchWidget    *advSearchWidget = new AdvancedSearchWidget (
            xmlDirectory.absoluteFilePath (xmls[xmlIdx]));

        advSearchWidget->setVisible (false);
        if (advSearchWidget->title () != "") {
            addWidget (advSearchWidget);
            typeComboBox->addItem (advSearchWidget->title (),
                                   qVariantFromValue < QWidget * > (advSearchWidget));
        } else {
            delete advSearchWidget;
        }
    }
}

SearchQueryView::SearchQueryView (QObject *)
 :  searchText (0), searchButton (0), stopSearchButton (0), buttonLayout (0),
    typeComboBox (0), advancedButton(0), advancedSearchWidget (0)
{
    QGroupBox   *simpleSearchGroupBox = new QGroupBox ("Simple");
    QVBoxLayout *groupLayout = new QVBoxLayout (simpleSearchGroupBox);

    searchButton = new QPushButton ("Start Search");
    searchButton->setIcon (QIcon ("Icons/resume.png"));
    searchButton->setAutoDefault (true);
    searchButton->setDefault (true);
    searchButton->setEnabled (true);
    stopSearchButton = new QPushButton ("Stop Search");
    stopSearchButton->setIcon (QIcon ("Icons/pause.png"));
    stopSearchButton->setEnabled (false);

    // Connecting slots
    QObject::connect (searchButton, SIGNAL (pressed ()), this,
                      SLOT (startSearchButtonPressed (void)));
    QObject::connect (stopSearchButton, SIGNAL (pressed ()), this,
                      SLOT (stopSearchButtonPressed (void)));

    buttonLayout = new QHBoxLayout ();
    buttonLayout->addStretch (1);
    buttonLayout->addWidget (searchButton);
    buttonLayout->addWidget (stopSearchButton);
    buttonLayout->addStretch (1);

    searchText = new QLineEdit (0);
    QObject::connect (searchText, SIGNAL (returnPressed ()), searchButton,
                      SLOT (animateClick ()));

    typeComboBox = new QComboBox ();
    advancedButton = new QPushButton (tr("Advanced..."));
    advancedButton->setCheckable (true);
    advancedButton->setDisabled (true);

    QHBoxLayout *typeLayout = new QHBoxLayout ();
    typeLayout->addWidget (typeComboBox);
    typeLayout->addWidget (advancedButton);

    groupLayout->addWidget (searchText);
    groupLayout->addLayout (typeLayout);
    groupLayout->addLayout (buttonLayout);

    // add all layouts and widgets to QueryView
    addWidget (simpleSearchGroupBox);

    typeComboBox->addItem (tr("Any type"), QVariant ());

    QObject::connect (typeComboBox, SIGNAL (currentIndexChanged (int)), this,
                      SLOT (typeIndexChanged (int)));

    advancedSearchWidget = 0;
    LoadXMLSchemas ();
    addItem (new QSpacerItem (10, 100, QSizePolicy::Minimum,
             QSizePolicy::Expanding));
}

SearchQueryView::~SearchQueryView ()
{
    advancedSearchWidget = 0;
    delete searchButton;
    delete stopSearchButton;
    delete buttonLayout;
}

const QString SearchQueryView::query () const
{
    return searchText->text ();
}

void SearchQueryView::startSearchButtonPressed ()
{
    if (query () == "") {
        QMessageBox::warning (parentWidget (), tr ("Warning!"),
                              tr ("Query string can't be empty!"));
    } else {
        searchButton->setEnabled (false);
        stopSearchButton->setEnabled (true);
        searchText->setEnabled (false);

        if (advancedSearchWidget != 0)
            advancedSearchWidget->setEnabled (false);

        emit    startSearch ();
    }
}

void SearchQueryView::stopSearchButtonPressed ()
{
    searchButton->setEnabled (true);
    stopSearchButton->setEnabled (false);
    searchText->setEnabled (true);

    if (advancedSearchWidget != 0)
        advancedSearchWidget->setEnabled (true);

    emit    stopSearch ();
}

void SearchQueryView::typeIndexChanged (int index)
{
    if (advancedSearchWidget != 0) {
        QObject::disconnect (advancedButton, SIGNAL (toggled (bool)),
                             advancedSearchWidget, SLOT (setVisible (bool)));
        advancedSearchWidget->setVisible (false);
    }

    QVariant    itemdata = typeComboBox->itemData (index);
    if (!itemdata.isNull ()) {
        advancedSearchWidget = itemdata.value < QWidget * > ();
        QObject::connect (advancedButton, SIGNAL (toggled (bool)),
                          advancedSearchWidget, SLOT (setVisible (bool)));
        advancedButton->setDisabled (false);
        if (advancedButton->isChecked ())
            advancedSearchWidget->setVisible (true);
    } else {
        advancedSearchWidget = 0;
        advancedButton->setDisabled (true);
    }
}

void SearchQueryView::setAuthorMetaInfo (QString)
{
    // \todo add transfer to searcher, or change signal receiver
}

void SearchQueryView::setAlbumMetaInfo (QString)
{
    // \todo add transfer to searcher, or change signal receiver
}

void SearchQueryView::setGenreMetaInfo (QString)
{
    // \todo add transfer to searcher, or change signal receiver
}

void SearchQueryView::setBitrateMetaInfo (QString)
{
    // \todo add transfer to searcher, or change signal receiver
}

void SearchQueryView::setDurationMetaInfo (QString)
{
    // \todo add transfer to searcher, or change signal receiver
}

void SearchQueryView::setWidthMetaInfo (QString)
{
    // \todo add transfer to searcher, or change signal receiver
}

void SearchQueryView::setHeightMetaInfo (QString)
{
    // \todo add transfer to searcher, or change signal receiver
}

Copyright © 2006 Peter Dimov.
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