httree.h

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/* 
 *      HT Editor
 *      httree.h
 *
 *      Copyright (C) 1999-2002 Sebastian Biallas (sb@web-productions.de)
 *
 *      This program is free software; you can redistribute it and/or modify
 *      it under the terms of the GNU General Public License version 2 as
 *      published by the Free Software Foundation.
 *
 *      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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef HT_TREE
#define HT_TREE

#include "htdata.h"
#include "htobj.h"
#include "global.h"

struct ht_treeview_data {
        DDECL_PTR(void *, selected);
};

class ht_treeview: public ht_view {
public:
                int delta_x, delta_y;
                int maxsize_x, maxsize_y;
                int                     foc;
                void                    *selected;

                           void init(bounds *b, char *desc);
                virtual void    done();
                virtual void    adjust(void *node, bool expand) = 0;
                           int  create_graph(int *s, void *node, int level, int lines, int width, int endwidth, int *Chars);
                           void   collapse_all(void *node);
                virtual int     count_children(void *node);
                virtual void    draw();
                           void draw_r(void *node, int level, int *pos, dword lines);
                           void   expand_all(void *node);
                virtual void   *get_child(void *node, int i) = 0;
                virtual void    getdata(ht_object_stream *s);
                virtual int     get_graph(int *s, void *node, int level, int lines);
                virtual void    *get_next_node(void *node) = 0;
                           void   *get_node(int i);
                           void   *get_node_r(void *node, int *i);
                virtual void    *get_prev_node(void *node) = 0;
                virtual void    *get_root() = 0;
                virtual char    *get_text(void *node) = 0;
                virtual void    handlemsg(htmsg *msg);
                virtual bool    has_children(void *node) = 0;
                virtual void    has_focused(int i);
                virtual bool    is_expanded(void *node) = 0;
                virtual bool    is_selected(int i);
                           void scroll_to(int x, int y);
                virtual void    select_node(void *node); // stub
                virtual void    setdata(ht_object_stream *s);
                           void set_limit(int x, int y);
                           void update();
                           void update_r(void *node, int level, int *pos, int *x);
private:
                           void   adjust_focus(int Focus);
};

struct static_node {
        static_node     *next, *prev, *child;
        char                    *text;
        bool                    expanded;
        Object          *data;
};

class ht_static_treeview: public ht_treeview {
public:
                static_node     *root;
                           void init(bounds *b, char *desc);
                virtual void    done();
                           void *add_child(void *node, char *text, Object *Data=NULL);
                           void *add_node(static_node **node, char *text, Object *Data=NULL);
                virtual void    adjust(void *node, bool expand);
                static_node     *create_node(char *text, static_node *prev, Object *Data=NULL);
                virtual void   *get_child(void *node, int i);
                virtual void    *get_next_node(void *node);
                virtual void    *get_prev_node(void *node);
                virtual void    *get_root();
                virtual char    *get_text(void *node);
                virtual bool    has_children(void *node);
                virtual bool    is_expanded(void *node);
                virtual void    select_node(void *node);
/* new */
                           void *get_cursor_node();
                           void goto_node(void *node);
};

#endif

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