kexifieldlistview.cpp

/* This file is part of the KDE project
   Copyright (C) 2003-2005 Jaroslaw Staniek <js@iidea.pl>
 
   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
 
   This program 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
   Library General Public License for more details.
 
   You should have received a copy of the GNU Library General Public License
   along with this program; see the file COPYING.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/
 
#include "kexifieldlistview.h"
 
#include <tqheader.h>
#include <tqlayout.h>
#include <tqlabel.h>
#include <tqpushbutton.h>
#include <tqcursor.h>
#include <tqpoint.h>
#include <tqapplication.h>
#include <tqbitmap.h>
#include <tqstyle.h>
 
#include <kdebug.h>
#include <kiconloader.h>
#include <tdeconfig.h>
#include <tdeglobalsettings.h>
#include <tdelocale.h>
 
#include <kexidb/tableschema.h>
#include <kexidb/queryschema.h>
#include <kexidb/utils.h>
#include <kexidragobjects.h>
#include <kexiutils/utils.h>
 
KexiFieldListView::KexiFieldListView(TQWidget *parent, const char *name, int options)
 : TDEListView(parent, name)
 , m_schema(0)
 , m_keyIcon(SmallIcon("key"))
 , m_noIcon(KexiUtils::emptyIcon(TDEIcon::Small))
 , m_options(options)
 , m_allColumnsItem(0)
{
    setAcceptDrops(true);
    viewport()->setAcceptDrops(true);
    setDropVisualizer(false);
    setDropHighlighter(true);
    setAllColumnsShowFocus(true);
    addColumn(i18n("Field Name"));
    if (m_options & ShowDataTypes)
        addColumn(i18n("Data Type"));
    if (m_options & AllowMultiSelection)
        setSelectionMode(TQListView::Extended);
    setResizeMode(TQListView::LastColumn);
//  header()->hide();
    setSorting(-1, true); // disable sorting
    setDragEnabled(true);
    
    connect(this, TQ_SIGNAL(doubleClicked(TQListViewItem*, const TQPoint &, int)), 
        this, TQ_SLOT(slotDoubleClicked(TQListViewItem*)));
}
 
KexiFieldListView::~KexiFieldListView()
{
    delete m_schema;
}
 
void KexiFieldListView::setSchema(KexiDB::TableOrQuerySchema* schema)
{
    if (schema && m_schema == schema)
        return;
    m_allColumnsItem = 0;
    clear();
    delete m_schema;
    m_schema = schema;
    if (!m_schema)
        return;
 
    int order=0;
    bool hasPKeys = true; //t->hasPrimaryKeys();
    TDEListViewItem *item = 0;
    KexiDB::QueryColumnInfo::Vector columns = m_schema->columns(true /*unique*/);
    const int count = columns.count();
    for(int i=-1; i < count; i++)
    {
        KexiDB::QueryColumnInfo *colinfo = 0;
        if (i==-1) {
            if (! (m_options & ShowAsterisk))
                continue;
            item = new TDEListViewItem(this, item, i18n("* (All Columns)"));
            m_allColumnsItem = item;
        }
        else {
            colinfo = columns[i];
            item = new TDEListViewItem(this, item, colinfo->aliasOrName());
            if (m_options & ShowDataTypes)
                item->setText(1, colinfo->field->typeName());
        }
        if(colinfo && (colinfo->field->isPrimaryKey() || colinfo->field->isUniqueKey()))
            item->setPixmap(0, m_keyIcon);
        else if (hasPKeys) {
            item->setPixmap(0, m_noIcon);
        }
        order++;
    }
 
    setCurrentItem(firstChild());
}
 
#if 0
TQSize KexiFieldListView::sizeHint()
{
    TQFontMetrics fm(font());
 
    kdDebug() << m_table->name() << " cw=" << columnWidth(1) + fm.width("i") << ", " << fm.width(m_table->name()+"  ") << endl; 
 
    TQSize s( 
        TQMAX( columnWidth(1) + fm.width("i"), fm.width(m_table->name()+"  ")), 
        childCount()*firstChild()->totalHeight() + 4 );
//  TQSize s( columnWidth(1), childCount()*firstChild()->totalHeight() + 3*firstChild()->totalHeight()/10);
    return s;
}
 
void KexiFieldListView::setReadOnly(bool b)
{
    setAcceptDrops(!b);
    viewport()->setAcceptDrops(!b);
}
#endif
 
TQDragObject* KexiFieldListView::dragObject()
{
    if (!schema())
        return 0;
    const TQStringList selectedFields( selectedFieldNames() );
    return new KexiFieldDrag(m_schema->table() ? "kexi/table" : "kexi/query", 
        m_schema->name(), selectedFields, this, "KexiFieldDrag");
/*  if (selectedItem()) {
        KexiFieldDrag *drag = new KexiFieldDrag("kexi/table", m_schema->name(), 
            selectedItem()->text(1), this, "KexiFieldDrag");
            return drag;
    }*/
}
 
TQStringList KexiFieldListView::selectedFieldNames() const
{
    if (!schema())
        return TQStringList();
    TQStringList selectedFields;
    for (TQListViewItem *item = firstChild(); item; item = item->nextSibling()) {
        if (item->isSelected()) {
            if (item == m_allColumnsItem && m_allColumnsItem)
                selectedFields.append("*");
            else
                selectedFields.append(item->text(0));
        }
    }
    return selectedFields;
}
 
void KexiFieldListView::slotDoubleClicked(TQListViewItem* item)
{
    if (schema() && item) {
        emit fieldDoubleClicked(schema()->table() ? "kexi/table" : "kexi/query",
            schema()->name(), item->text(0));
    }
}
 
#include "kexifieldlistview.moc"