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/*********
*
* This file is part of BibleTime's source code, http://www.bibletime.info/.
*
* Copyright 1999-2008 by the BibleTime developers.
* The BibleTime source code is licensed under the GNU General Public License version 2.0.
*
**********/
#include "frontend/keychooser/clexiconkeychooser.h"
#include <algorithm>
#include <iterator>
#include <map>
#include <QHBoxLayout>
#include <QDebug>
#include "backend/config/cbtconfig.h"
#include "backend/drivers/cswordlexiconmoduleinfo.h"
#include "backend/keys/cswordldkey.h"
#include "frontend/keychooser/bthistory.h"
#include "frontend/keychooser/ckeychooserwidget.h"
#include "frontend/keychooser/cscrollbutton.h"
#include "util/cresmgr.h"
CLexiconKeyChooser::CLexiconKeyChooser(QList<CSwordModuleInfo*> modules, CSwordKey *key, QWidget *parent)
: CKeyChooser(modules, key, parent),
m_key(dynamic_cast<CSwordLDKey*>(key)) {
setModules(modules, false);
//we use a layout because the key chooser should be resized to full size
m_layout = new QHBoxLayout(this);
m_layout->setSpacing(0);
m_layout->setContentsMargins(0, 0, 0, 0);
m_layout->setDirection(QBoxLayout::LeftToRight);
m_layout->setSizeConstraint(QLayout::SetNoConstraint);
m_widget = new CKeyChooserWidget(0, false, this);
setFocusProxy(m_widget);
//don't allow a too high width, try to keep as narrow as possible
//to aid users with smaller screen resolutions
m_widget->comboBox()->setMaximumWidth(200);
m_widget->setToolTips(
tr("Entries of the current work"),
tr("Next entry"),
tr("Scroll through the entries of the list. Press the button and move the mouse to increase or decrease the item."),
tr("Previous entry")
);
m_layout->addWidget(m_widget, 0, Qt::AlignLeft);
connect(m_widget, SIGNAL(changed(int)), SLOT(activated(int)));
connect(m_widget, SIGNAL(focusOut(int)), SLOT(activated(int)));
setModules(modules, true);
setKey(key);
connect(this, SIGNAL(keyChanged(CSwordKey*)), history(), SLOT(add(CSwordKey*)) );
}
CSwordKey* CLexiconKeyChooser::key() {
// qWarning("key");
return m_key;
}
void CLexiconKeyChooser::setKey(CSwordKey* key) {
qDebug() << "CLexiconKeyChooser::setKey";
if (!(m_key = dynamic_cast<CSwordLDKey*>(key))) {
return;
}
QString newKey = m_key->key();
const int index = m_widget->comboBox()->findText(newKey);
m_widget->comboBox()->setCurrentIndex(index);
// qWarning("setKey end");
emit keyChanged( m_key);
}
void CLexiconKeyChooser::activated(int index) {
// qWarning("activated");
const QString text = m_widget->comboBox()->itemText(index);
// To prevent from eternal loop, because activated() is emitted again
if (m_key && m_key->key() != text) {
m_key->key(text);
setKey(m_key);
}
// qWarning("activated end");
}
inline bool my_cmpEntries(const QString& a, const QString& b) {
return a < b;
}
/** Reimplementation. */
void CLexiconKeyChooser::refreshContent() {
if (m_modules.count() == 1) {
m_widget->reset(m_modules.first()->entries(), 0, true);
// qWarning("resetted");
}
else {
typedef std::multimap<unsigned int, QStringList*> EntryMap;
EntryMap entryMap;
QStringList* entries = 0;
QListIterator<CSwordLexiconModuleInfo*> mit(m_modules);
while (mit.hasNext()) {
entries = mit.next()->entries();
entryMap.insert( std::make_pair(entries->count(), entries) );
}
QStringList goodEntries; //The string list which contains the entries which are available in all modules
EntryMap::iterator it = entryMap.begin(); //iterator to go thoigh all selected modules
QStringList refEntries = *(it->second); //copy the items for the first time
QStringList* cmpEntries = ( ++it )->second; //list for comparision, starts with the second module in the map
while (it != entryMap.end()) {
std::set_intersection(
refEntries.begin(), --(refEntries.end()), //--end() is the last valid entry
cmpEntries->begin(), --(cmpEntries->end()),
std::back_inserter(goodEntries), //append valid entries to the end of goodEntries
my_cmpEntries //ci_cmpEntries is the comparision function
);
cmpEntries = ( ++it )->second; //this is a pointer to the string list of a new module
/*
* use the good entries for next comparision,
* because the final list can only have the entries of goodEntries as maxiumum
*/
refEntries = goodEntries;
};
m_widget->reset(goodEntries, 0, true); //write down the entries
} //end of ELSE
}
/** No descriptions */
void CLexiconKeyChooser::adjustFont() {
}
/** Sets the module and refreshes the combo boxes */
void CLexiconKeyChooser::setModules( const QList<CSwordModuleInfo*>& modules, const bool refresh ) {
while (!m_modules.isEmpty())
m_modules.takeFirst(); // not deleting the pointer
QList<CSwordModuleInfo*>::const_iterator end_it = modules.end();
for (QList<CSwordModuleInfo*>::const_iterator it(modules.begin()); it != end_it; ++it) {
CSwordLexiconModuleInfo* lexicon = dynamic_cast<CSwordLexiconModuleInfo*>(*it);
if (lexicon) {
m_modules.append(lexicon);
}
}
if (refresh) {
refreshContent();
// adjustFont();
}
}
/** No descriptions */
void CLexiconKeyChooser::updateKey(CSwordKey*) {}
void CLexiconKeyChooser::setKey(QString& newKey) {
m_key->key(newKey);
setKey(m_key);
}
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