return (text != NULL ? strlen(text) * getFontWidth(font_nr) : 0);
}
-static char getFontCharPosition(int font_nr, char c)
+static int getFontCharPosition(int font_nr, char c)
{
int font_bitmap_id = gfx.select_font_function(font_nr);
struct FontBitmapInfo *font = &gfx.font_bitmap_info[font_bitmap_id];
boolean default_font = (font->num_chars == DEFAULT_NUM_CHARS_PER_FONT);
- int font_pos = c - 32;
+ int font_pos = (unsigned char)c - 32;
/* map some special characters to their ascii values in default font */
if (default_font)
*y = font->src_y + (font_pos / font->num_chars_per_line) * font->height;
}
+
+/* ========================================================================= */
+/* simple text drawing functions */
+/* ========================================================================= */
+
void DrawInitText(char *text, int ypos, int font_nr)
{
- if (window &&
+ if (window != NULL &&
gfx.num_fonts > 0 &&
gfx.font_bitmap_info[font_nr].bitmap != NULL)
{
- ClearRectangle(window, 0, ypos, video.width, getFontHeight(font_nr));
- DrawTextExt(window, (video.width - getTextWidth(text, font_nr)) / 2, ypos,
- text, font_nr, BLIT_OPAQUE);
- FlushDisplay();
+ int x = (video.width - getTextWidth(text, font_nr)) / 2;
+ int y = ypos;
+ int width = video.width;
+ int height = getFontHeight(font_nr);
+
+ ClearRectangle(drawto, 0, y, width, height);
+ DrawTextExt(drawto, x, y, text, font_nr, BLIT_OPAQUE);
+
+ /* this makes things significantly faster than directly drawing to window */
+ BlitBitmap(drawto, window, 0, y, width, height, 0, y);
}
}
char c = *text_ptr++;
if (c == '\n')
- c = ' '; /* print space instaed of newline */
+ c = ' '; /* print space instead of newline */
getFontCharSource(font_nr, c, &src_bitmap, &src_x, &src_y);
}
}
-void DrawTextToTextArea(int x, int y, char *text, int font_nr, int line_length,
- int area_xsize, int area_ysize, int mask_mode)
+
+/* ========================================================================= */
+/* text buffer drawing functions */
+/* ========================================================================= */
+
+#define MAX_LINES_FROM_FILE 1024
+
+char *GetTextBufferFromFile(char *filename, int max_lines)
+{
+ FILE *file;
+ char *buffer;
+ int num_lines = 0;
+
+ if (filename == NULL)
+ return NULL;
+
+ if (!(file = fopen(filename, MODE_READ)))
+ return NULL;
+
+ buffer = checked_calloc(1); /* start with valid, but empty text buffer */
+
+ while (!feof(file) && num_lines < max_lines)
+ {
+ char line[MAX_LINE_LEN];
+
+ /* read next line of input file */
+ if (!fgets(line, MAX_LINE_LEN, file))
+ break;
+
+ buffer = checked_realloc(buffer, strlen(buffer) + strlen(line) + 1);
+
+ strcat(buffer, line);
+
+ num_lines++;
+ }
+
+ fclose(file);
+
+ return buffer;
+}
+
+void DrawTextToTextArea_OLD(int x, int y, char *text, int font_nr, int line_length,
+ int area_xsize, int area_ysize, int mask_mode)
{
int area_line = 0;
int font_height = getFontHeight(font_nr);
redraw_mask |= REDRAW_FIELD;
}
-boolean RenderLineToBuffer(char **src_buffer_ptr, char *dst_buffer,
- int *dst_buffer_len, boolean last_line_was_empty,
- int line_length)
+static boolean RenderLineToBuffer(char **src_buffer_ptr, char *dst_buffer,
+ int *dst_buffer_len, int line_length,
+ boolean last_line_was_empty)
{
char *text_ptr = *src_buffer_ptr;
char *buffer = dst_buffer;
return buffer_filled;
}
-void DrawTextWrapped(int x, int y, char *text, int font_nr, int line_length,
- int max_lines)
+#if 0
+void DrawTextWrapped_OLD(int x, int y, char *text, int font_nr, int line_length,
+ int max_lines)
{
char *text_ptr = text;
- char buffer[line_length + 1];
- int buffer_len;
int current_line = 0;
int font_height = getFontHeight(font_nr);
while (*text_ptr && current_line < max_lines)
{
+ char buffer[line_length + 1];
+ int buffer_len = 0;
+
buffer[0] = '\0';
- buffer_len = 0;
- RenderLineToBuffer(&text_ptr, buffer, &buffer_len, TRUE, line_length);
+ RenderLineToBuffer(&text_ptr, buffer, &buffer_len, line_length, TRUE);
DrawText(x, y + current_line * font_height, buffer, font_nr);
current_line++;
}
}
+#endif
-int DrawTextFromFile(int x, int y, char *filename, int font_nr,
- int line_length, int max_lines)
+#if 0
+int DrawTextFromFile_OLD(int x, int y, char *filename, int font_nr,
+ int line_length, int max_lines, boolean wrap_text)
{
int font_height = getFontHeight(font_nr);
char line[MAX_LINE_LEN];
while (*line_ptr && current_line < max_lines)
{
- boolean buffer_filled = RenderLineToBuffer(&line_ptr,
- buffer, &buffer_len,
- last_line_was_empty,
- line_length);
+#if 1
+ boolean buffer_filled;
+
+ if (wrap_text)
+ {
+ buffer_filled = RenderLineToBuffer(&line_ptr, buffer, &buffer_len,
+ line_length, last_line_was_empty);
+ }
+ else
+ {
+ if (strlen(line_ptr) <= line_length)
+ {
+ buffer_len = strlen(line_ptr);
+ strcpy(buffer, line_ptr);
+ }
+ else
+ {
+ buffer_len = line_length;
+ strncpy(buffer, line_ptr, line_length);
+ }
+
+ buffer[buffer_len] = '\0';
+ line_ptr += buffer_len;
+
+ buffer_filled = TRUE;
+ }
+#else
+ boolean buffer_filled = RenderLineToBuffer(&line_ptr, buffer, &buffer_len,
+ line_length, last_line_was_empty);
+#endif
+
if (buffer_filled)
{
DrawText(x, y + current_line * font_height, buffer, font_nr);
return current_line;
}
+#endif
+
+int DrawTextBuffer(int x, int y, char *text_buffer, int font_nr,
+ int line_length, int cut_length, int max_lines,
+ int mask_mode, boolean autowrap, boolean centered,
+ boolean skip_comments)
+{
+ int font_width = getFontWidth(font_nr);
+ int font_height = getFontHeight(font_nr);
+ char buffer[line_length + 1];
+ int buffer_len;
+ int current_line = 0;
+
+ if (text_buffer == NULL || *text_buffer == '\0')
+ return 0;
+
+ if (current_line >= max_lines)
+ return 0;
+
+ if (cut_length == -1)
+ cut_length = line_length;
+
+ buffer[0] = '\0';
+ buffer_len = 0;
+
+ while (*text_buffer && current_line < max_lines)
+ {
+ char line[MAX_LINE_LEN + 1];
+ char *line_ptr;
+ boolean last_line_was_empty = TRUE;
+ int num_line_chars = (autowrap ? MAX_LINE_LEN : line_length);
+ int i;
+
+ /* copy next line from text buffer to line buffer (nearly fgets() style) */
+ for (i = 0; i < num_line_chars && *text_buffer; i++)
+ if ((line[i] = *text_buffer++) == '\n')
+ break;
+ line[i] = '\0';
+
+ /* skip comments (lines directly beginning with '#') */
+ if (line[0] == '#' && skip_comments)
+ continue;
+
+ /* cut trailing newline and carriage return 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;
+
+ if (autowrap)
+ {
+ buffer_filled = RenderLineToBuffer(&line_ptr, buffer, &buffer_len,
+ line_length, last_line_was_empty);
+ }
+ else
+ {
+ if (strlen(line_ptr) <= line_length)
+ {
+ buffer_len = strlen(line_ptr);
+ strcpy(buffer, line_ptr);
+ }
+ else
+ {
+ buffer_len = line_length;
+ strncpy(buffer, line_ptr, line_length);
+ }
+
+ buffer[buffer_len] = '\0';
+ line_ptr += buffer_len;
+
+ buffer_filled = TRUE;
+ }
+
+ if (buffer_filled)
+ {
+ int offset_chars = (centered ? (line_length - buffer_len) / 2 : 0);
+ int offset_xsize =
+ (centered ? font_width * (line_length - buffer_len) / 2 : 0);
+ int final_cut_length = MAX(0, cut_length - offset_chars);
+ int xx = x + offset_xsize;
+
+ buffer[final_cut_length] = '\0';
+
+ if (mask_mode != -1)
+ DrawTextExt(drawto, xx, y + current_line * font_height, buffer,
+ font_nr, mask_mode);
+ else
+ DrawText(xx, y + current_line * font_height, buffer, font_nr);
+
+ current_line++;
+
+ last_line_was_empty = (buffer_len == 0);
+
+ buffer[0] = '\0';
+ buffer_len = 0;
+ }
+ }
+ }
+
+ if (buffer_len > 0 && current_line < max_lines)
+ {
+ int offset_chars = (centered ? (line_length - buffer_len) / 2 : 0);
+ int offset_xsize =
+ (centered ? font_width * (line_length - buffer_len) / 2 : 0);
+ int final_cut_length = MAX(0, cut_length - offset_chars);
+ int xx = x + offset_xsize;
+
+ buffer[final_cut_length] = '\0';
+
+ if (mask_mode != -1)
+ DrawTextExt(drawto, xx, y + current_line * font_height, buffer,
+ font_nr, mask_mode);
+ else
+ DrawText(xx, y + current_line * font_height, buffer, font_nr);
+
+ current_line++;
+ }
+
+ return current_line;
+}
+
+int DrawTextFile(int x, int y, char *filename, int font_nr,
+ int line_length, int cut_length, int max_lines,
+ int mask_mode, boolean autowrap, boolean centered,
+ boolean skip_comments)
+{
+ char *text_buffer = GetTextBufferFromFile(filename, MAX_LINES_FROM_FILE);
+ int num_lines_printed = DrawTextBuffer(x, y, text_buffer, font_nr,
+ line_length, cut_length, max_lines,
+ mask_mode, autowrap, centered,
+ skip_comments);
+ checked_free(text_buffer);
+
+ return num_lines_printed;
+}
+
+#if 0
+void DrawTextWrapped(int x, int y, char *text, int font_nr, int line_length,
+ int max_lines)
+{
+ DrawTextBuffer(x, y, text, font_nr, line_length, -1, max_lines, -1, TRUE,
+ FALSE, FALSE);
+}
+
+void DrawTextToTextArea(int x, int y, char *text, int font_nr, int line_length,
+ int cut_length, int max_lines, int mask_mode)
+{
+ DrawTextBuffer(x, y, text, font_nr, line_length, cut_length, max_lines,
+ mask_mode, FALSE, FALSE, FALSE);
+}
+#endif