/***********************************************************
* Artsoft Retro-Game Library *
*----------------------------------------------------------*
-* (c) 1994-2002 Artsoft Entertainment *
+* (c) 1994-2006 Artsoft Entertainment *
* Holger Schemel *
* Detmolder Strasse 189 *
* 33604 Bielefeld *
clip_gc_valuemask, &clip_gc_values);
/* create only those clipping Pixmaps we really need */
- for (i=0; i < gfx.num_fonts; i++)
+ for (i = 0; i < gfx.num_fonts; i++)
{
if (gfx.font_bitmap_info[i].bitmap == NULL)
continue;
gfx.font_bitmap_info[i].clip_mask =
checked_calloc(gfx.font_bitmap_info[i].num_chars * sizeof(Pixmap));
- for (j=0; j < gfx.font_bitmap_info[i].num_chars; j++)
+ for (j = 0; j < gfx.font_bitmap_info[i].num_chars; j++)
{
Bitmap *src_bitmap = gfx.font_bitmap_info[i].bitmap;
Pixmap src_pixmap = src_bitmap->clip_mask;
if (gfx.num_fonts == 0 || gfx.font_bitmap_info[0].bitmap == NULL)
return;
- for (i=0; i < gfx.num_fonts; i++)
+ for (i = 0; i < gfx.num_fonts; i++)
{
if (gfx.font_bitmap_info[i].clip_mask)
{
- for (j=0; j < gfx.font_bitmap_info[i].num_chars; j++)
+ for (j = 0; j < gfx.font_bitmap_info[i].num_chars; j++)
XFreePixmap(display, gfx.font_bitmap_info[i].clip_mask[j]);
free(gfx.font_bitmap_info[i].clip_mask);
}
#endif /* TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND */
void InitFontInfo(struct FontBitmapInfo *font_bitmap_info, int num_fonts,
- int (*select_font_function)(int))
+ int (*select_font_function)(int),
+ int (*get_font_from_token_function)(char *))
{
gfx.num_fonts = num_fonts;
gfx.font_bitmap_info = font_bitmap_info;
gfx.select_font_function = select_font_function;
+ gfx.get_font_from_token_function = get_font_from_token_function;
#if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
InitFontClipmasks();
free(font_bitmap_info);
}
+struct FontBitmapInfo *getFontBitmapInfo(int font_nr)
+{
+ int font_bitmap_id = gfx.select_font_function(font_nr);
+
+ return &gfx.font_bitmap_info[font_bitmap_id];
+}
+
int getFontWidth(int font_nr)
{
int font_bitmap_id = gfx.select_font_function(font_nr);
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);
}
}
gfx.sy + y, text, font_nr);
}
+void DrawTextCentered(int y, int font_nr, char *text)
+{
+ DrawText((gfx.sxsize - getTextWidth(text, font_nr)) / 2, y, text, font_nr);
+}
+
+void DrawTextSAligned(int x, int y, char *text, int font_nr, int align)
+{
+ DrawText(gfx.sx + ALIGNED_XPOS(x, getTextWidth(text, font_nr), align),
+ gfx.sx + y, text, font_nr);
+}
+
+void DrawTextAligned(int x, int y, char *text, int font_nr, int align)
+{
+ DrawText(ALIGNED_XPOS(x, getTextWidth(text, font_nr), align),
+ y, text, font_nr);
+}
+
void DrawText(int x, int y, char *text, int font_nr)
{
int mask_mode = BLIT_OPAQUE;
void DrawTextExt(DrawBuffer *dst_bitmap, int dst_x, int dst_y, char *text,
int font_nr, int mask_mode)
{
+#if 1
+ struct FontBitmapInfo *font = getFontBitmapInfo(font_nr);
+#else
int font_bitmap_id = gfx.select_font_function(font_nr);
struct FontBitmapInfo *font = &gfx.font_bitmap_info[font_bitmap_id];
+#endif
int font_width = getFontWidth(font_nr);
int font_height = getFontHeight(font_nr);
+#if 0
+ int border_1 = gfx.sx + gfx.sxsize;
+ int border_2 = gfx.dx + gfx.dxsize;
+ int dst_x_start = dst_x;
+#endif
Bitmap *src_bitmap;
int src_x, src_y;
char *text_ptr = text;
if (font->bitmap == NULL)
return;
+ /* skip text to be printed outside the window (left/right will be clipped) */
+ if (dst_y < 0 || dst_y + font_height > video.height)
+ return;
+
/* add offset for drawing font characters */
- dst_x += font->draw_x;
- dst_y += font->draw_y;
+ dst_x += font->draw_xoffset;
+ dst_y += font->draw_yoffset;
while (*text_ptr)
{
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);
+ /* clip text at the left side of the window */
+ if (dst_x < 0)
+ {
+ dst_x += font_width;
+
+ continue;
+ }
+
+ /* clip text at the right side of the window */
+#if 1
+ if (dst_x + font_width > video.width)
+ break;
+#else
+ /* (this does not work well when trying to print text to whole screen) */
+ if ((dst_x_start < border_1 && dst_x + font_width > border_1) ||
+ (dst_x_start < border_2 && dst_x + font_width > border_2))
+ break;
+#endif
+
if (mask_mode == BLIT_INVERSE) /* special mode for text gadgets */
{
/* first step: draw solid colored rectangle (use "cursor" character) */
}
}
-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);
char buffer[MAX_OUTPUT_LINESIZE + 1];
int i;
- for (i=0; i < line_length && *text; i++)
+ for (i = 0; i < line_length && *text; i++)
if ((buffer[i] = *text++) == '\n')
break;
buffer[MIN(i, area_xsize)] = '\0';
redraw_mask |= REDRAW_FIELD;
}
+
+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;
+ int buffer_len = *dst_buffer_len;
+ boolean buffer_filled = FALSE;
+
+ while (*text_ptr)
+ {
+ char *word_ptr;
+ int word_len;
+
+ /* skip leading whitespaces */
+ while (*text_ptr == ' ' || *text_ptr == '\t')
+ text_ptr++;
+
+ word_ptr = text_ptr;
+ word_len = 0;
+
+ /* look for end of next word */
+ while (*word_ptr != ' ' && *word_ptr != '\t' && *word_ptr != '\0')
+ {
+ word_ptr++;
+ word_len++;
+ }
+
+ if (word_len == 0)
+ {
+ continue;
+ }
+ else if (*text_ptr == '\n') /* special case: force empty line */
+ {
+ if (buffer_len == 0)
+ text_ptr++;
+
+ /* prevent printing of multiple empty lines */
+ if (buffer_len > 0 || !last_line_was_empty)
+ buffer_filled = TRUE;
+ }
+ else if (word_len < line_length - buffer_len)
+ {
+ /* word fits into text buffer -- add word */
+
+ if (buffer_len > 0)
+ buffer[buffer_len++] = ' ';
+
+ strncpy(&buffer[buffer_len], text_ptr, word_len);
+ buffer_len += word_len;
+ buffer[buffer_len] = '\0';
+ text_ptr += word_len;
+ }
+ else if (buffer_len > 0)
+ {
+ /* not enough space left for word in text buffer -- print buffer */
+
+ buffer_filled = TRUE;
+ }
+ else
+ {
+ /* word does not fit at all into empty text buffer -- cut word */
+
+ strncpy(buffer, text_ptr, line_length);
+ buffer[line_length] = '\0';
+ text_ptr += line_length;
+ buffer_filled = TRUE;
+ }
+
+ if (buffer_filled)
+ break;
+ }
+
+ *src_buffer_ptr = text_ptr;
+ *dst_buffer_len = buffer_len;
+
+ return buffer_filled;
+}
+
+#if 0
+void DrawTextWrapped_OLD(int x, int y, char *text, int font_nr, int line_length,
+ int max_lines)
+{
+ char *text_ptr = text;
+ 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';
+
+ RenderLineToBuffer(&text_ptr, buffer, &buffer_len, line_length, TRUE);
+
+ DrawText(x, y + current_line * font_height, buffer, font_nr);
+ current_line++;
+ }
+}
+#endif
+
+#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];
+ 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)
+ {
+#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);
+ 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;
+}
+#endif
+
+static boolean getCheckedTokenValueFromString(char *string, char **token,
+ char **value)
+{
+ char *ptr;
+
+ if (!getTokenValueFromString(string, token, value))
+ return FALSE;
+
+ if (**token != '.') /* token should begin with dot */
+ return FALSE;
+
+ for (ptr = *token; *ptr; ptr++) /* token should contain no whitespace */
+ if (*ptr == ' ' || *ptr == '\t')
+ return FALSE;
+
+ for (ptr = *value; *ptr; ptr++) /* value should contain no whitespace */
+ if (*ptr == ' ' || *ptr == '\t')
+ return FALSE;
+
+ return TRUE;
+}
+
+static void DrawTextBuffer_Flush(int x, int y, char *buffer, int font_nr,
+ int line_length, int cut_length, int mask_mode,
+ boolean centered, int current_line)
+{
+ int buffer_len = strlen(buffer);
+ int font_width = getFontWidth(font_nr);
+ int font_height = getFontHeight(font_nr);
+ 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;
+ int yy = y + current_line * font_height;
+
+ buffer[final_cut_length] = '\0';
+
+ if (mask_mode != -1)
+ DrawTextExt(drawto, xx, yy, buffer, font_nr, mask_mode);
+ else
+ DrawText(xx, yy, buffer, font_nr);
+}
+
+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 parse_comments)
+{
+#if 0
+ int font_width = getFontWidth(font_nr);
+ int font_height = getFontHeight(font_nr);
+#endif
+ 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;
+#if 1
+ int num_line_chars = MAX_LINE_LEN;
+#else
+ int num_line_chars = (autowrap ? MAX_LINE_LEN : line_length);
+#endif
+ 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';
+
+ /* prevent 'num_line_chars' sized lines to cause additional empty line */
+ if (i == num_line_chars && *text_buffer == '\n')
+ text_buffer++;
+
+ /* skip comments (lines directly beginning with '#') */
+ if (line[0] == '#' && parse_comments)
+ {
+ char *token, *value;
+
+ /* try to read generic token/value pair definition after comment sign */
+ if (getCheckedTokenValueFromString(line + 1, &token, &value))
+ {
+ /* if found, flush the current buffer, if non-empty */
+ if (buffer_len > 0 && current_line < max_lines)
+ {
+ DrawTextBuffer_Flush(x, y, buffer, font_nr, line_length, cut_length,
+ mask_mode, centered, current_line);
+
+ current_line++;
+
+ buffer[0] = '\0';
+ buffer_len = 0;
+ }
+
+ if (strEqual(token, ".font"))
+ font_nr = gfx.get_font_from_token_function(value);
+ else if (strEqual(token, ".autowrap"))
+ autowrap = get_boolean_from_string(value);
+ else if (strEqual(token, ".centered"))
+ centered = get_boolean_from_string(value);
+ else if (strEqual(token, ".parse_comments"))
+ parse_comments = get_boolean_from_string(value);
+ }
+
+ 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)
+ {
+#if 1
+ DrawTextBuffer_Flush(x, y, buffer, font_nr, line_length, cut_length,
+ mask_mode, centered, current_line);
+#else
+ 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);
+#endif
+
+ current_line++;
+
+ last_line_was_empty = (buffer_len == 0);
+
+ buffer[0] = '\0';
+ buffer_len = 0;
+ }
+ }
+ }
+
+ if (buffer_len > 0 && current_line < max_lines)
+ {
+#if 1
+ DrawTextBuffer_Flush(x, y, buffer, font_nr, line_length, cut_length,
+ mask_mode, centered, current_line);
+#else
+ 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);
+#endif
+
+ 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 parse_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,
+ parse_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