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/*
This file is part of Kiten, a KDE Japanese Reference Tool
SPDX-FileCopyrightText: 2006 Joseph Kerian <jkerian@gmail.com>
SPDX-License-Identifier: LGPL-2.0-or-later
*/
/**
* Future Plans:
*
* Design a custom QGridLayout to rearrange buttons dynamically to resize
* Design multiple radical file handling
* Icon set for displaying radicals outside of this bizarre unicode section
* Radical decomposition implementation
*/
#include "buttongrid.h"
#include <KLocalizedString>
#include <QGridLayout>
#include <QLabel>
#include <QString>
ButtonGrid::ButtonGrid( QWidget *parent, RadicalFile *radicalInfo )
: QWidget( parent )
, CurrentMode( Selection )
, m_radicalInfo( radicalInfo )
, m_sortByFrequency( false )
{
if ( m_radicalInfo )
{
buildRadicalButtons();
}
}
ButtonGrid::~ButtonGrid()
{
}
void ButtonGrid::buildRadicalButtons()
{
if( layout() )
{
// Instead of iterating over our children and deleting them one by one, we
// simply reparent the previous layout to a temporary widget; when it goes
// out of scope, everything will be automatically deleted.
// Thanks to https://stackoverflow.com/a/10439207 for the tip!
QWidget().setLayout( layout() );
}
//Setup the grid
QGridLayout *grid = new QGridLayout( this );
//Now make labels
for( unsigned int i = 0; i < number_of_radical_columns; i++ )
{
QString headerString = QString::number( i + 1 );
if( i == ( number_of_radical_columns - 1 ) )
{
headerString.append( QStringLiteral( "+" ) );
}
QLabel *header = new QLabel( headerString, this );
header->setAlignment( Qt::AlignHCenter );
grid->addWidget( header, 0, i );
}
//Get a list of radicals (organized by strokes)
QMultiMap<int, Radical> *radicalMap = m_radicalInfo->mapRadicalsByStrokes( number_of_radical_columns );
QList<int> radicalStrokeCounts = radicalMap->uniqueKeys();
//Now create all the buttons
foreach( int strokeCount, radicalStrokeCounts )
{
//(0-based column index)
unsigned int column_index = strokeCount - 1;
int row_index = 1;
QList<Radical> radicals = radicalMap->values( strokeCount );
std::sort( radicals.begin(), radicals.end(),
m_sortByFrequency ? Radical::compareFrequencies : Radical::compareIndices );
foreach( const Radical &radical, radicals )
{
//Make the button
RadicalButton *button = new RadicalButton( radical.toString(), this );
grid->addWidget( button, row_index++, column_index );
//Bind slots/signals for this button
connect( button, &RadicalButton::userClicked,
this, &ButtonGrid::radicalClicked );
connect( this, &ButtonGrid::clearButtonSelections,
button, &RadicalButton::resetButton );
//Add this button to our list
m_buttons.insert( radical.toString(), button );
}
}
delete radicalMap;
setLayout( grid );
updateButtons();
}
void ButtonGrid::setSortByFrequency( bool enable )
{
if( m_sortByFrequency != enable )
{
m_sortByFrequency = enable;
buildRadicalButtons();
}
}
void ButtonGrid::clearSelections()
{
m_selectedRadicals.clear();
Q_EMIT clearButtonSelections();
}
void ButtonGrid::radicalClicked( const QString &newrad
, RadicalButton::ButtonStatus newStatus )
{
if( newStatus == RadicalButton::Related )
{
; //Do something fancy
}
else if( newStatus == RadicalButton::Normal
|| newStatus == RadicalButton::Selected )
{
CurrentMode = Selection;
if( newStatus == RadicalButton::Normal )
{
m_selectedRadicals.remove( newrad );
if( m_selectedRadicals.isEmpty() )
{
Q_EMIT signalChangeStatusbar( i18n( "No Radicals Selected" ) );
}
}
else
{
m_selectedRadicals.insert( newrad );
}
updateButtons();
}
}
void ButtonGrid::updateButtons()
{
if ( ! m_radicalInfo )
{
return;
}
//Special Case/Early exit: no radicals selected
if( m_selectedRadicals.isEmpty() )
{
QList<Kanji> blankList;
foreach( RadicalButton *button, m_buttons )
{
button->setStatus( RadicalButton::Normal );
}
Q_EMIT possibleKanji( blankList );
return;
}
//Figure out what our kanji possibilities are
QSet<Kanji> kanjiSet = m_radicalInfo->kanjiContainingRadicals( m_selectedRadicals );
//Convert to a list, sort, and tell the world!
QList<Kanji> kanjiList = kanjiSet.values();
std::sort(kanjiList.begin(), kanjiList.end());
Q_EMIT possibleKanji( kanjiList );
//Do the announcement of the selected radical list
QStringList radicalList( m_selectedRadicals.values() );
Q_EMIT signalChangeStatusbar( i18n( "Selected Radicals: " )
+ radicalList.join(QLatin1String(", ") ) );
//Now figure out what our remaining radical possibilities are
QSet<QString> remainingRadicals = m_radicalInfo->radicalsInKanji( kanjiSet );
//Remove the already selected ones
remainingRadicals -= m_selectedRadicals;
//Now go through and set status appropriately
QHash<QString, RadicalButton*>::iterator i = m_buttons.begin();
while( i != m_buttons.end() )
{
if( m_selectedRadicals.contains( i.key() ) )
{
i.value()->setStatus( RadicalButton::Selected );
}
else if( remainingRadicals.contains( i.key() ) )
{
i.value()->setStatus( RadicalButton::Normal );
}
else
{
i.value()->setStatus( RadicalButton::NotAppropriate );
}
++i;
}
}
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