boolean RenderLineToBuffer(char **src_buffer_ptr, char *dst_buffer,
int *dst_buffer_len, boolean last_line_was_empty,
- int max_chars_per_line)
+ int line_length)
{
char *text_ptr = *src_buffer_ptr;
char *buffer = dst_buffer;
if (buffer_len > 0 || !last_line_was_empty)
buffer_filled = TRUE;
}
- else if (word_len < max_chars_per_line - buffer_len)
+ else if (word_len < line_length - buffer_len)
{
/* word fits into text buffer -- add word */
{
/* word does not fit at all into empty text buffer -- cut word */
- strncpy(buffer, text_ptr, max_chars_per_line);
- buffer[max_chars_per_line] = '\0';
- text_ptr += max_chars_per_line;
+ strncpy(buffer, text_ptr, line_length);
+ buffer[line_length] = '\0';
+ text_ptr += line_length;
buffer_filled = TRUE;
}
current_line++;
}
}
+
+int DrawTextFromFile(int x, int y, char *filename, int font_nr,
+ int line_length, int max_lines)
+{
+ int font_height = getFontHeight(font_nr);
+ char line[MAX_LINE_LEN];
+ char buffer[line_length + 1];
+ int buffer_len;
+ int current_line = 0;
+ FILE *file;
+
+ if (current_line >= max_lines)
+ return 0;
+
+ if (filename == NULL)
+ return 0;
+
+ if (!(file = fopen(filename, MODE_READ)))
+ return 0;
+
+ buffer[0] = '\0';
+ buffer_len = 0;
+
+ while (!feof(file) && current_line < max_lines)
+ {
+ char *line_ptr;
+ boolean last_line_was_empty = TRUE;
+
+ /* read next line of input file */
+ if (!fgets(line, MAX_LINE_LEN, file))
+ break;
+
+ /* skip comments (lines directly beginning with '#') */
+ if (line[0] == '#')
+ continue;
+
+ /* cut trailing newline from input line */
+ for (line_ptr = line; *line_ptr; line_ptr++)
+ {
+ if (*line_ptr == '\n' || *line_ptr == '\r')
+ {
+ *line_ptr = '\0';
+ break;
+ }
+ }
+
+ if (strlen(line) == 0) /* special case: force empty line */
+ strcpy(line, "\n");
+
+ line_ptr = line;
+
+ while (*line_ptr && current_line < max_lines)
+ {
+ boolean buffer_filled = RenderLineToBuffer(&line_ptr,
+ buffer, &buffer_len,
+ last_line_was_empty,
+ line_length);
+ if (buffer_filled)
+ {
+ DrawText(x, y + current_line * font_height, buffer, font_nr);
+ current_line++;
+
+ last_line_was_empty = (buffer_len == 0);
+
+ buffer[0] = '\0';
+ buffer_len = 0;
+ }
+ }
+ }
+
+ fclose(file);
+
+ if (buffer_len > 0 && current_line < max_lines)
+ {
+ DrawText(x, y + current_line * font_height, buffer, font_nr);
+ current_line++;
+ }
+
+ return current_line;
+}