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/***************************************************************************
* Copyright (C) 2003-2004 by *
* Unai Garro (ugarro@users.sourceforge.net) *
* Cyril Bosselut (bosselut@b1project.com) *
* Jason Kivlighn (jkivlighn@gmail.com) *
* *
* This program 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. *
***************************************************************************/
#include "categorycombobox.h"
#include <ntqlistbox.h>
#include <tdelocale.h>
#include <tdeconfig.h>
#include <tdeglobal.h>
#include "backends/recipedb.h"
#include "backends/progressinterface.h"
#include "datablocks/elementlist.h"
#include "datablocks/categorytree.h"
CategoryComboBox::CategoryComboBox( TQWidget *parent, RecipeDB *db ) : KComboBox( parent ),
database( db ),
m_offset(0)
{
connect( database, SIGNAL( categoryCreated( const Element &, int ) ), SLOT( createCategory( const Element &, int ) ) );
connect( database, SIGNAL( categoryRemoved( int ) ), SLOT( removeCategory( int ) ) );
connect( database, SIGNAL( categoryModified( const Element & ) ), SLOT( modifyCategory( const Element & ) ) );
connect( database, SIGNAL( categoriesMerged( int, int ) ), SLOT( mergeCategories( int, int ) ) );
// Insert default "All Categories" (row 0, which will be translated to -1 as category in the filtering process)
// the rest of the items are loaded when needed in order to significantly speed up startup
insertItem( i18n( "All Categories" ) );
}
void CategoryComboBox::popup()
{
if ( count() == 1 )
reload();
KComboBox::popup();
}
void CategoryComboBox::reload()
{
TQString remember_cat_filter = currentText();
TDEConfig * config = TDEGlobal::config();config->setGroup( "Performance" );
int limit = config->readNumEntry( "CategoryLimit", -1 );
//ProgressInterface pi(this);
//pi.listenOn(database);
CategoryTree categoryList;
database->loadCategories( &categoryList, limit, m_offset, -1 );
clear();
categoryComboRows.clear();
// Insert default "All Categories" (row 0, which will be translated to -1 as category in the filtering process)
insertItem( i18n( "All Categories" ) );
//Now load the categories
int row = 1;
loadCategories(&categoryList,row);
if ( listBox() ->findItem( remember_cat_filter, TQt::ExactMatch ) ) {
setCurrentText( remember_cat_filter );
}
}
void CategoryComboBox::loadCategories( CategoryTree *categoryTree, int &row )
{
for ( CategoryTree * child_it = categoryTree->firstChild(); child_it; child_it = child_it->nextSibling() ) {
insertItem( child_it->category.name );
categoryComboRows.insert( row, child_it->category.id ); // store category id's in the combobox position to obtain the category id later
row++;
loadCategories( child_it, row );
}
}
void CategoryComboBox::loadNextGroup()
{
TDEConfig * config = TDEGlobal::config();config->setGroup( "Performance" );
int limit = config->readNumEntry( "CategoryLimit", -1 );
m_offset += limit;
reload();
}
void CategoryComboBox::loadPrevGroup()
{
TDEConfig * config = TDEGlobal::config();config->setGroup( "Performance" );
int limit = config->readNumEntry( "CategoryLimit", -1 );
m_offset -= limit;
reload();
}
int CategoryComboBox::id( int row )
{
if ( row )
return categoryComboRows[ row ];
else
return -1; // No category filtering
}
void CategoryComboBox::createCategory( const Element &element, int /*parent_id*/ )
{
int row = findInsertionPoint( element.name );
insertItem( element.name, row );
//now update the map by pushing everything after this item down
TQMap<int, int> new_map;
for ( TQMap<int, int>::iterator it = categoryComboRows.begin(); it != categoryComboRows.end(); ++it ) {
if ( it.key() >= row ) {
new_map.insert( it.key() + 1, it.data() );
}
else
new_map.insert( it.key(), it.data() );
}
categoryComboRows = new_map;
categoryComboRows.insert( row, element.id );
}
void CategoryComboBox::removeCategory( int id )
{
int row = -1;
for ( TQMap<int, int>::iterator it = categoryComboRows.begin(); it != categoryComboRows.end(); ++it ) {
if ( it.data() == id ) {
row = it.key();
removeItem( row );
categoryComboRows.remove( it );
break;
}
}
if ( row == -1 )
return ;
//now update the map by pushing everything after this item up
TQMap<int, int> new_map;
for ( TQMap<int, int>::iterator it = categoryComboRows.begin(); it != categoryComboRows.end(); ++it ) {
if ( it.key() > row ) {
new_map.insert( it.key() - 1, it.data() );
}
else
new_map.insert( it.key(), it.data() );
}
categoryComboRows = new_map;
}
void CategoryComboBox::modifyCategory( const Element &element )
{
for ( TQMap<int, int>::const_iterator it = categoryComboRows.begin(); it != categoryComboRows.end(); ++it ) {
if ( it.data() == element.id )
changeItem( element.name, it.key() );
}
}
void CategoryComboBox::mergeCategories( int /*to_id*/, int from_id )
{
removeCategory( from_id );
}
int CategoryComboBox::findInsertionPoint( const TQString &name )
{
for ( int i = 1; i < count(); i++ ) {
if ( TQString::localeAwareCompare( name, text( i ) ) < 0 )
return i;
}
return count();
}
#include "categorycombobox.moc"
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