edit_widget.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef ULTIMA8_GUMPS_WIDGETS_EDITWIDGET_H
#define ULTIMA8_GUMPS_WIDGETS_EDITWIDGET_H

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

#include "ultima/ultima8/gumps/gump.h"

#include "ultima/ultima8/gfx/fonts/font.h"
#include "ultima/ultima8/misc/classtype.h"

namespace Ultima {
namespace Ultima8 {

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);
    ~EditWidget() override;

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

    void PaintThis(RenderSurface *, int32 lerp_factor, bool scaled) override;
    void PaintComposited(RenderSurface *surf, int32 lerp_factor, int32 sx, int32 sy) override;

    Gump *onMouseMotion(int32 mx, int32 my) override;
    bool OnKeyDown(int key, int mod) override;
    bool OnKeyUp(int key) override;
    bool OnTextInput(int unicode) override;

    void OnFocus(bool gain) override;

    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 _cursorChanged;
    bool _cursorVisible;

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

    RenderedText *_cachedText;

};

} // End of namespace Ultima8
} // End of namespace Ultima

#endif