display.c File Reference

Display width and centering utilities implementation. More...

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Functions
int	display_width (const char *text)
int	display_center_horizontal (const char *text, int terminal_width)
int	display_center_vertical (int content_height, int terminal_height)

Detailed Description

Display width and centering utilities implementation.

Definition in file lib/util/display.c.

Function Documentation

display_center_horizontal()

int display_center_horizontal	(	const char *	text,
		int	terminal_width
	)

Definition at line 32 of file lib/util/display.c.

                                                                    {
  if (!text || terminal_width <= 0) {
    return 0;
  }
 
  int text_width = display_width(text);
 
  // If text is empty or wider than terminal, don't add padding
  if (text_width == 0 || text_width >= terminal_width) {
    return 0;
  }
 
  // Calculate left padding to center
  return (terminal_width - text_width) / 2;
}

References display_width().

Referenced by discovery_status_display().

display_center_vertical()

int display_center_vertical	(	int	content_height,
		int	terminal_height
	)

Definition at line 48 of file lib/util/display.c.

                                                                     {
  if (content_height <= 0 || terminal_height <= 0) {
    return 0;
  }
 
  if (content_height >= terminal_height) {
    return 0;
  }
 
  return (terminal_height - content_height) / 2;
}

Referenced by discovery_status_display().

display_width()

int display_width

(

const char *

text

)

Definition at line 13 of file lib/util/display.c.

                                    {
  if (!text) {
    return 0;
  }
 
  // Strip ANSI escape codes
  char *stripped = ansi_strip_escapes(text, strlen(text));
 
  // Use stripped version if available, otherwise use original text
  const char *to_measure = stripped ? stripped : text;
 
  // Calculate display width using UTF-8 aware calculation
  int width = utf8_display_width(to_measure);
  SAFE_FREE(stripped);
 
  // Return 0 for empty or invalid input, otherwise return calculated width
  return width < 0 ? 0 : width;
}

References ansi_strip_escapes(), and utf8_display_width().

Referenced by display_center_horizontal(), layout_print_two_column_row(), and terminal_screen_render().