Method get_text_line_width

2dlib/pentext.cpp:231–259

//		returns length in pixels of text line using current text spacing settings

int grViewport::get_text_line_width(char *str) {
  int line_width = 0;
  int rgb_define_mode = 0;

  for (int i = 0; i < (int)strlen(str); i++) {
    int width;

    // note that if we hit the GR_COLOR_CHAR then the next three values should
    //	not count when defining the width of the line.
    if (rgb_define_mode == 3)
      rgb_define_mode = 0;
    else if (str[i] == GR_COLOR_CHAR)
      rgb_define_mode = 1;
    if (!rgb_define_mode) {
      if (str[i] == '\t') { // tab char
        int space_width;
        text_Font.get_char_info(' ', &space_width);
        space_width += text_Spacing;
        line_width = (line_width + space_width - 1) / space_width * space_width;
      } else {
        text_Font.get_char_info((int)str[i], &width);
        line_width += (width + get_text_spacing());
      }
    } else
      rgb_define_mode++;
  }

  return line_width - get_text_spacing();
}

/*	These internal routines just draw a line of text.  depending on the function
        we clip or don't clip