00001 /*--------------------------------------------------------------------
00002 * vtext.h
00003 *
00004 */
00005
00006 #ifndef VTEXT_H
00007 #define VTEXT_H
00008
00009 #include "tcltk_calling_convention.h"
00010 #include "vwidget.h"
00011 #include "event.h"
00012 #include "vtcl.h"
00013 #include "vtagman.h"
00014 #include "vtty.h"
00015 #include "vprop.h"
00016
00017 class vnode;
00018 class binding;
00019 class vprop;
00020
00021 typedef int column_id;
00022
00023 /*----------------------------------------------------------------------
00024 * text widget
00025 */
00026
00027 class vtext : public vtty {
00028
00029 private:
00030 vtagman *tagman; // tags mananger
00031
00032 vnode *current_sel; // currently selected object
00033 tag_node *current_tag; // currently selected tag
00034
00035 void add_indicator(int row, int col, bool on);
00036
00037 void expand_node_helper(tag_node *tag);
00038 void collapse_node_helper(tag_node *tag);
00039
00040 /* misc */
00041 char *read_text(text_coord &begin, text_coord &end);
00042 void delete_text(tag_node *node, text_coord &begin, text_coord &end);
00043 void insert_text(tag_node *root, bool overwrite); // insert text
00044
00045 void preselect_node_at(int row, int col);
00046
00047 public:
00048 vtext(vwidget *par);
00049 ~vtext(void);
00050 void destroy(void);
00051 virtual int kind(void) { return WIDGET_TEXT; }
00052
00053 /* configure */
00054 void set_text_wrap(bool wrap);
00055
00056 /* additional columns */
00057 column_id add_column(int width);
00058 void remove_column(column_id);
00059 void set_column_text(column_id col, int line_num, char *text);
00060
00061 /* text I/O */
00062 int insert_file(char *filename, bool add_line_num = false);
00063 virtual void update(void);
00064 virtual void clear(void);
00065
00066 /* attributes */
00067 virtual void tag_style(text_style style);
00068
00069 /* vnode tags */
00070 virtual void *tag_begin(vnode *obj);
00071 virtual void *tag_begin(vnode *obj, print_fn fn, int d,
00072 void *client_data);
00073 virtual void tag_end(vnode *obj);
00074 tag_node *root_tag(void) { return tagman->get_root(); }
00075 tag_node *find_tag(vnode *obj);
00076 tag_node_list *find_tags(vnode *obj);
00077
00078 /* properties */
00079 void update_props(void);
00080 void update_prop(vprop *p);
00081
00082 /* viewing */
00083 void view(int row, int col);
00084 void view(tag_node *tag);
00085 void view(vnode *vn);
00086 int get_top_row(void);
00087
00088 /* selection */
00089 virtual vnode *get_selection(void) { return current_sel; }
00090
00091 void select_clear(void);
00092 void select_node_at(int row, int col, int scope = 0);
00093 void select_line(int row);
00094 void select(tag_node *node, bool add = false);
00095 void select(vnode *vn, bool add = false);
00096 void select_expand(void);
00097
00098 /* toggle nodes */
00099 void expand_node(tag_node *node);
00100 void collapse_node(tag_node *node);
00101 void collapse_all(void);
00102 void expand_all(void);
00103
00104 /* interface with tcl/tk */
00105 static int TCLTK_CALLING_CONVENTION vtext_cmd(ClientData clientData, Tcl_Interp *interp, int argc,
00106 char *argv[]);
00107
00108 };
00109
00110 #endif
