line_edit.h

/*************************************************************************/
/*  line_edit.h                                                          */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/
#ifndef LINE_EDIT_H
#define LINE_EDIT_H

#include "scene/gui/control.h"
class LineEdit : public Control {

    OBJ_TYPE( LineEdit, Control );

public:
    enum Align {

        ALIGN_LEFT,
        ALIGN_CENTER,
        ALIGN_RIGHT,
        ALIGN_FILL
    };
private:
    Align align;

    bool editable;
    bool pass;

    String undo_text;
    String text;

    int cursor_pos;
    int window_pos;
    int max_length; // 0 for no maximum

    int cached_width;

    struct Selection {

        int begin;
        int end;
        int cursor_start;
        bool enabled;
        bool creating;
        bool doubleclick;
        bool drag_attempt;
    } selection;

    void shift_selection_check_pre(bool);
    void shift_selection_check_post(bool);

    void selection_clear();
    void selection_fill_at_cursor();
    void selection_delete();
    void set_window_pos(int p_pos);

    void set_cursor_at_pixel_pos(int p_x);

    void clear_internal();
    void changed_internal();

    void copy_text();
    void cut_text();
    void paste_text();


    void _input_event(InputEvent p_event);
    void _notification(int p_what);

protected:
    static void _bind_methods();
public:
    void set_align(Align p_align);
    Align get_align() const;

    virtual Variant get_drag_data(const Point2& p_point);
    virtual bool can_drop_data(const Point2& p_point,const Variant& p_data) const;
    virtual void drop_data(const Point2& p_point,const Variant& p_data);


    void select_all();

    void delete_char();
    void set_text(String p_text);
    String get_text() const;
    void set_cursor_pos(int p_pos);
    int get_cursor_pos() const;
    void set_max_length(int p_max_length);
    int get_max_length() const;
    void append_at_cursor(String p_text);
    void clear();


    void set_editable(bool p_editable);
    bool is_editable() const;

    void set_secret(bool p_secret);
    bool is_secret() const;

    void select(int p_from=0, int p_to=-1);

    virtual Size2 get_minimum_size() const;

    virtual bool is_text_field() const;
    LineEdit();
    ~LineEdit();

};


VARIANT_ENUM_CAST(LineEdit::Align);

#endif