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/*
* HT Editor
* httree.h
*
* Copyright (C) 1999-2002 Sebastian Biallas (sb@biallas.net)
*
* 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 "data.h"
#include "htobj.h"
#include "io/types.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, const char *desc);
virtual void done();
virtual void adjust(void *node, bool expand) = 0;
int create_graph(AbstractChar *s, void *node, int level, int lines, int width, int endwidth, const AbstractChar *Chars);
void collapse_all(void *node);
virtual int count_children(void *node);
virtual void draw();
void draw_r(void *node, int level, int *pos, uint32 lines);
void expand_all(void *node);
virtual void *get_child(void *node, int i) = 0;
virtual void getdata(ObjectStream &s);
virtual int get_graph(AbstractChar *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(ObjectStream &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, const char *desc);
virtual void done();
void *add_child(void *node, const char *text, Object *Data=NULL);
void *add_node(static_node **node, const char *text, Object *Data=NULL);
virtual void adjust(void *node, bool expand);
static_node *create_node(const 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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