src/widget.h

   1 #ifndef __WIDGET_H
   2 #define __WIDGET_H
   3
   4 #include "dlg.h"                /* Widget */
   5
   6 #define C_BOOL          1
   7 #define C_CHANGE        2
   8
   9 /* Please note that the first element in all the widgets is a     */
  10 /* widget variable of type Widget.  We abuse this fact everywhere */
  11
  12 #define HIDDEN_BUTTON           0
  13 #define NARROW_BUTTON           1
  14 #define NORMAL_BUTTON           2
  15 #define DEFPUSH_BUTTON          3
  16
  17 typedef struct WButton {
  18     Widget widget;
  19     int action;                 /* what to do when pressed */
  20     int selected;               /* button state */
  21     unsigned int flags;         /* button flags */
  22     char *text;                 /* text of button */
  23     int  hotkey;                /* hot KEY */
  24     int  hotpos;                /* offset hot KEY char in text */
  25     int  (*callback)(int, void*); /* Callback function */
  26     void *callback_data;
  27 } WButton;
  28
  29 typedef struct WRadio {
  30     Widget widget;
  31     unsigned int state;         /* radio button state */
  32     int pos, sel;
  33     int count;                  /* number of members */
  34     char **texts;               /* texts of labels */
  35     int upper_letter_is_hotkey; /* If true, then the capital letter is a hk */
  36 } WRadio;
  37
  38 typedef struct WCheck {
  39     Widget widget;
  40     unsigned int state;         /* check button state */
  41     char *text;                 /* text of check button */
  42     int hotkey;                 /* hot KEY */
  43     int hotpos;                 /* offset hot KEY char in text */
  44 } WCheck;
  45
  46 typedef struct WGauge {
  47     Widget widget;
  48     int shown;
  49     int max;
  50     int current;
  51 } WGauge;
  52
  53 GList *history_get (char *input_name);
  54 void history_put (char *input_name, GList *h);
  55 char *show_hist (GList *history, int widget_y, int widget_x);
  56
  57 typedef struct {
  58     Widget widget;
  59     int  point;                 /* cursor position in the input line */
  60     int  mark;                  /* The mark position */
  61     int  first_shown;           /* Index of the first shown character */
  62     int  current_max_len;       /* Maximum length of input line */
  63     int  field_len;             /* Length of the editing field */
  64     int  color;                 /* color used */
  65     int  first;                 /* Is first keystroke? */
  66     int  disable_update;        /* Do we want to skip updates? */
  67     int  is_password;           /* Is this a password input line? */
  68     unsigned char *buffer;      /* pointer to editing buffer */
  69     GList *history;             /* The history */
  70     int  need_push;             /* need to push the current Input on hist? */
  71     char **completions;         /* Possible completions array */
  72     int  completion_flags;      /* INPUT_COMPLETE* bitwise flags(complete.h) */
  73     char *history_name;         /* name of history for loading and saving */
  74 } WInput;
  75
  76 /* For history load-save functions */
  77 #define INPUT_LAST_TEXT ((char *) 2)
  78 #define HISTORY_FILE_NAME ".mc/history"
  79
  80 typedef struct {
  81     Widget widget;
  82     int    auto_adjust_cols;    /* compute widget.cols from strlen(text)? */
  83     char   *text;
  84     int    transparent;         /* Paint in the default color fg/bg */
  85 } WLabel;
  86
  87 typedef struct WLEntry {
  88     char *text;                 /* Text to display */
  89     int  hotkey;
  90     void *data;                 /* Client information */
  91     struct WLEntry *next;
  92     struct WLEntry *prev;
  93 } WLEntry;
  94
  95 enum {
  96     listbox_begin, listbox_end
  97 } /* listbox_insert */;
  98
  99 /* Listbox actions when selecting an option: */
 100 enum {
 101     listbox_nothing,
 102     listbox_finish,             /* finish dialog */
 103     listbox_cback               /* call the callback routine */
 104 } /* listbox_action */;
 105
 106 typedef int (*lcback) (void *);
 107
 108 typedef struct WListbox {
 109     Widget widget;
 110     WLEntry *list;              /* Pointer to the circular double linked list. */
 111     WLEntry *top;               /* The first element displayed */
 112     WLEntry *current;           /* The current element displayed */
 113     int pos;                    /* Cur. pos, must be kept in sync with current */
 114     int count;                  /* Number of items in the listbox */
 115     int width;
 116     int height;                 /* Size of the widget */
 117     int action;                 /* Action type */
 118     int allow_duplicates;       /* Do we allow duplicates on the list? */
 119     int scrollbar;              /* Draw a scrollbar? */
 120     lcback cback;               /* The callback function */
 121     int cursor_x, cursor_y;     /* Cache the values */
 122 } WListbox;
 123
 124 typedef void (*buttonbarfn)(void *);
 125
 126 typedef struct {
 127     Widget widget;
 128     int    visible;             /* Is it visible? */
 129     struct {
 130         char   *text;
 131         buttonbarfn function;
 132         void   *data;
 133     } labels [10];
 134 } WButtonBar;
 135
 136 /* Constructors */
 137 WButton *button_new   (int y, int x, int action, int flags, char *text,
 138                         int (*callback)(int, void *), void *extra, char *tkname);
 139 WRadio  *radio_new    (int y, int x, int count, char **text, int use_hotkey, char *tkname);
 140 WCheck  *check_new    (int y, int x, int state,  char *text, char *tkname);
 141 WInput  *input_new    (int y, int x, int color, int len, const char *text, char *tkname);
 142 WLabel  *label_new    (int y, int x, const char *text, char *tkname);
 143 WGauge  *gauge_new    (int y, int x, int shown, int max, int current, char *tkname);
 144 WListbox *listbox_new (int x, int y, int width, int height, int action,
 145                         lcback, char *tkname);
 146
 147 /* Input lines */
 148 void winput_set_origin (WInput *i, int x, int field_len);
 149 int handle_char (WInput *in, int c_code);
 150 int is_in_input_map (WInput *in, int c_code);
 151 void update_input (WInput *in, int clear_first);
 152 void new_input (WInput *in);
 153 int push_history (WInput *in, char *text);
 154 void stuff (WInput *in, char *text, int insert_extra_space);
 155 void input_disable_update (WInput *in);
 156 void input_set_prompt (WInput *in, int field_len, char *prompt);
 157 void input_enable_update (WInput *in);
 158 void input_set_point (WInput *in, int pos);
 159 void input_show_cursor (WInput *in);
 160 void assign_text (WInput *in, char *text);
 161 int input_callback (WInput *in, int Msg, int Par);
 162
 163 /* Labels */
 164 void label_set_text (WLabel *label, char *text);
 165
 166 /* Gauges */
 167 void gauge_set_value (WGauge *g, int max, int current);
 168 void gauge_show (WGauge *g, int shown);
 169
 170 /* Buttons */
 171 void button_set_text (WButton *b, char *text);
 172
 173 /* Listbox manager */
 174 WLEntry *listbox_get_data (WListbox *l, int pos);
 175
 176 /* search text int listbox entries */
 177 WLEntry *listbox_search_text (WListbox *l, char *text);
 178 void listbox_select_entry (WListbox *l, WLEntry *dest);
 179 void listbox_select_by_number (WListbox *l, int n);
 180 void listbox_select_last (WListbox *l, int set_top);
 181 void listbox_remove_current (WListbox *l, int force);
 182 void listbox_remove_list (WListbox *l);
 183 void listbox_get_current (WListbox *l, char **string, char **extra);
 184
 185 enum append_pos {
 186     LISTBOX_APPEND_AT_END,      /* append at the end */
 187     LISTBOX_APPEND_BEFORE,      /* insert before current */
 188     LISTBOX_APPEND_AFTER        /* insert after current */
 189 };
 190
 191 char *listbox_add_item (WListbox *l, enum append_pos pos, int
 192                         hotkey, char *text, void *data);
 193
 194 /* Hintbar routines */
 195
 196 /* Buttonbar routines */
 197 WButtonBar *buttonbar_new (int visible);
 198 WButtonBar *find_buttonbar (Dlg_head *h);
 199 typedef void (*voidfn)(void);
 200 void define_label (Dlg_head *, int index, char *text, voidfn);
 201 void define_label_data (Dlg_head *h, int idx, char *text,
 202                         buttonbarfn cback, void *data);
 203 void redraw_labels (Dlg_head *h);
 204 void buttonbar_hint (WButtonBar *bb, char *s);
 205
 206 #endif  /* __WIDGET_H */