src/bfu/text.h

   1 #ifndef EL__BFU_TEXT_H
   2 #define EL__BFU_TEXT_H
   3
   4 #include "util/color.h"
   5
   6 struct dialog;
   7 struct terminal;
   8
   9 struct widget_info_text {
  10         enum format_align align;
  11         unsigned int is_label:1;
  12         unsigned int is_scrollable:1;
  13 };
  14
  15 struct widget_data_info_text {
  16         /* The number of the first line that should be
  17          * displayed within the widget.
  18          * This is used only for scrollable text widgets */
  19         int current;
  20
  21         /* The number of lines saved in @cdata */
  22         int lines;
  23
  24         /* The dialog width to which the lines are wrapped.
  25          * This is used to check whether the lines must be
  26          * rewrapped. */
  27         int max_width;
  28 #ifdef CONFIG_MOUSE
  29         /* For mouse scrollbar handling. See bfu/text.c.*/
  30
  31         /* Height of selected part of scrollbar. */
  32         int scroller_height;
  33
  34         /* Position of selected part of scrollbar. */
  35         int scroller_y;
  36
  37         /* Direction of last mouse scroll. Used to adjust
  38          * scrolling when selected bar part has a low height
  39          * (especially the 1 char height) */
  40         int scroller_last_dir;
  41 #endif
  42 };
  43
  44 void add_dlg_text(struct dialog *dlg, unsigned char *text,
  45                   enum format_align align, int bottom_pad);
  46
  47 extern const struct widget_ops text_ops;
  48 void dlg_format_text_do(struct terminal *term,
  49                     unsigned char *text, int x, int *y, int w, int *rw,
  50                     struct color_pair *scolor, enum format_align align, int format_only);
  51
  52 void
  53 dlg_format_text(struct terminal *term, struct widget_data *widget_data,
  54                 int x, int *y, int dlg_width, int *real_width, int height, int format_only);
  55
  56 #define text_is_scrollable(widget_data) \
  57         ((widget_data)->widget->info.text.is_scrollable \
  58          && (widget_data)->box.height > 0 \
  59          && (widget_data)->info.text.lines > 0 \
  60          && (widget_data)->box.height < (widget_data)->info.text.lines)
  61
  62 #endif