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