EditWidget.h

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/*
 *  Copyright (C) 2005  The Pentagram Team
 *
 *  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.
 *
 *  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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef EDITWIDGET_H
#define EDITWIDGET_H

//
// EditWidget. Widget for text input (single or multi-line)
//

#include "Gump.h"

#include "Font.h"

using Pentagram::Font;

class RenderedText;

class EditWidget : public Gump
{
public:
        ENABLE_RUNTIME_CLASSTYPE();

        EditWidget(int X, int Y, std::string txt, bool gamefont, int fontnum,
                           int width, int height, unsigned int maxlength=0,
                           bool multiline=false);
        virtual ~EditWidget(void);

        virtual void InitGump(Gump* newparent, bool take_focus=true);

        virtual void PaintThis(RenderSurface*, sint32 lerp_factor, bool scaled);
        virtual void PaintComposited(RenderSurface* surf, sint32 lerp_factor, sint32 sx, sint32 sy);

        virtual Gump* OnMouseMotion(int mx, int my);
        virtual bool OnKeyDown(int key, int mod);
        virtual bool OnKeyUp(int key);
        virtual bool OnTextInput(int unicode);

        std::string getText() const { return text; }
        void setText(const std::string& t);

        enum Message
        {
                EDIT_ENTER = 16,
                EDIT_ESCAPE = 17
        };


protected:
        std::string text;
        std::string::size_type cursor;
        bool gamefont;
        int fontnum;
        unsigned int maxlength;
        bool multiline;

        uint32 cursor_changed;
        bool cursor_visible;

        void ensureCursorVisible();
        bool textFits(std::string& t);
        void renderText();
        Pentagram::Font* getFont() const;

        RenderedText* cached_text;

};

#endif

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