kexitableedit.h

/* This file is part of the KDE project
   Copyright (C) 2002 Peter Simonsson <psn@linux.se>
   Copyright (C) 2003-2006 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.
 */
 
#ifndef _KEXITABLEEDIT_H_
#define _KEXITABLEEDIT_H_
 
#include <kexidataiteminterface.h>
 
#include <tqvariant.h>
#include <tqscrollview.h>
 
#include "kexitableviewdata.h"
 
namespace KexiDB {
    class Field;
    class QueryColumnInfo;
}
 
class KEXIDATATABLE_EXPORT KexiTableEdit : public TQWidget, public KexiDataItemInterface
{
    TQ_OBJECT
  
 
    public:
        KexiTableEdit(KexiTableViewColumn &column, TQWidget* parent = 0);
 
        virtual ~KexiTableEdit();
 
        virtual KexiDB::Field *field() const { return m_column->field(); }
 
        virtual KexiDB::QueryColumnInfo *columnInfo() const { return m_column->columnInfo; }
 
        virtual void setColumnInfo(KexiDB::QueryColumnInfo *) { }
 
        inline KexiTableViewColumn *column() const { return m_column; }
 
        KexiDB::Field *displayedField() const;
 
        virtual void resize(int w, int h);
 
        virtual TQWidget* widget() { return m_view; }
 
        inline virtual void hideWidget() { hide(); }
 
        inline virtual void showWidget() { show(); }
 
        virtual void paintFocusBorders( TQPainter *p, TQVariant &cal, int x, int y, int w, int h );
 
        virtual void setupContents( TQPainter *p, bool focused, const TQVariant& val, 
            TQString &txt, int &align, int &x, int &y_offset, int &w, int &h );
 
        bool usesSelectedTextColor() const { return m_usesSelectedTextColor; }
 
        virtual void paintSelectionBackground( TQPainter *p, bool focused, const TQString& txt, 
            int align, int x, int y_offset, int w, int h, const TQColor& fillColor,
            const TQFontMetrics &fm, bool readOnly, bool fullRowSelection );
 
        int leftMargin() const { return m_leftMargin; }
 
        int rightMargin(bool focused) const;
 
        virtual bool handleKeyPress( TQKeyEvent* ke, bool editorActive ) { 
            Q_UNUSED(ke); Q_UNUSED(editorActive); return false; }
 
        virtual bool handleDoubleClick() { return false; }
 
        virtual void handleCopyAction(const TQVariant& value, const TQVariant& visibleValue) = 0;
 
        virtual int widthForValue( TQVariant &val, const TQFontMetrics &fm );
 
        virtual TQSize totalSize() { return TQWidget::size(); }
 
        virtual bool showToolTipIfNeeded(const TQVariant& value, const TQRect& rect, const TQFontMetrics& fm,
            bool focused);
 
        virtual void createInternalEditor(KexiDB::QuerySchema& schema) { Q_UNUSED(schema); }
 
    signals:
        void editRequested();
        void cancelRequested();
        void acceptRequested();
 
    protected:
        virtual bool eventFilter(TQObject* watched, TQEvent* e);
 
        void setViewWidget(TQWidget *v);
 
        void moveChild( TQWidget * child, int x, int y );
 
        void repaintRelatedCell();
 
        KexiTableViewColumn *m_column;
        int m_leftMargin;
        int m_rightMargin, m_rightMarginWhenFocused;
        TQScrollView* m_scrollView; 
        bool m_usesSelectedTextColor : 1; 
 
    private:
        TQWidget* m_view;
};
 
#define KEXI_DECLARE_CELLEDITOR_FACTORY_ITEM(factoryclassname) \
    class factoryclassname : public KexiCellEditorFactoryItem \
    { \
        public: \
            factoryclassname(); \
            virtual ~factoryclassname(); \
    \
        protected: \
            virtual KexiTableEdit* createEditor(KexiTableViewColumn &column, TQWidget* parent = 0); \
    };
 
#define KEXI_CELLEDITOR_FACTORY_ITEM_IMPL(factoryclassname, itemclassname) \
factoryclassname::factoryclassname() \
 : KexiCellEditorFactoryItem() \
{ \
    m_className = "" #itemclassname ""; \
} \
\
factoryclassname::~factoryclassname() \
{} \
\
KexiTableEdit* factoryclassname::createEditor( \
    KexiTableViewColumn &column, TQWidget* parent) \
{ \
    return new itemclassname(column, parent); \
}
 
#endif