// (c) 1995-2014 by Artsoft Entertainment
// Holger Schemel
// info@artsoft.org
-// http://www.artsoft.org/
+// https://www.artsoft.org/
// ----------------------------------------------------------------------------
// text.c
// ============================================================================
#include "misc.h"
-/* ========================================================================= */
-/* font functions */
-/* ========================================================================= */
+// ============================================================================
+// static font variables
+// ============================================================================
+
+boolean text_drawing_enabled = TRUE;
+
+
+// ============================================================================
+// font functions
+// ============================================================================
+
+void EnableDrawingText(void)
+{
+ text_drawing_enabled = TRUE;
+}
+
+void DisableDrawingText(void)
+{
+ text_drawing_enabled = FALSE;
+}
void InitFontInfo(struct FontBitmapInfo *font_bitmap_info, int num_fonts,
int (*select_font_function)(int),
- int (*get_font_from_token_function)(char *))
+ int (*get_font_from_token_function)(char *),
+ char * (*get_token_from_font_function)(int))
{
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;
+ gfx.get_token_from_font_function = get_token_from_font_function;
}
void FreeFontInfo(struct FontBitmapInfo *font_bitmap_info)
return gfx.font_bitmap_info[font_bitmap_id].height;
}
+int getFontDrawOffsetX(int font_nr)
+{
+ int font_bitmap_id = gfx.select_font_function(font_nr);
+
+ return gfx.font_bitmap_info[font_bitmap_id].draw_xoffset;
+}
+
+int getFontDrawOffsetY(int font_nr)
+{
+ int font_bitmap_id = gfx.select_font_function(font_nr);
+
+ return gfx.font_bitmap_info[font_bitmap_id].draw_yoffset;
+}
+
int getTextWidth(char *text, int font_nr)
{
return (text != NULL ? strlen(text) * getFontWidth(font_nr) : 0);
boolean default_font = (font->num_chars == DEFAULT_NUM_CHARS_PER_FONT);
int font_pos = (unsigned char)c - 32;
- /* map some special characters to their ascii values in default font */
+ // map some special characters to their ascii values in default font
if (default_font)
font_pos = MAP_FONT_ASCII(c) - 32;
- /* this allows dynamic special characters together with special font */
+ // this allows dynamic special characters together with special font
if (font_pos < 0 || font_pos >= font->num_chars)
font_pos = 0;
int font_bitmap_id = gfx.select_font_function(font_nr);
struct FontBitmapInfo *font = &gfx.font_bitmap_info[font_bitmap_id];
int font_pos = getFontCharPosition(font_nr, c);
+ int offset_x = (font->offset_x != 0 ? font->offset_x : font->width);
+ int offset_y = (font->offset_y != 0 ? font->offset_y : font->height);
*bitmap = font->bitmap;
- *x = font->src_x + (font_pos % font->num_chars_per_line) * font->width;
- *y = font->src_y + (font_pos / font->num_chars_per_line) * font->height;
+ *x = font->src_x + (font_pos % font->num_chars_per_line) * offset_x;
+ *y = font->src_y + (font_pos / font->num_chars_per_line) * offset_y;
}
-/* ========================================================================= */
-/* text string helper functions */
-/* ========================================================================= */
+// ============================================================================
+// text string helper functions
+// ============================================================================
-int maxWordLengthInString(char *text)
+int maxWordLengthInRequestString(char *text)
{
char *text_ptr;
int word_len = 0, max_word_len = 0;
for (text_ptr = text; *text_ptr; text_ptr++)
{
- word_len = (*text_ptr != ' ' ? word_len + 1 : 0);
+ word_len = (*text_ptr != ' ' &&
+ *text_ptr != '?' &&
+ *text_ptr != '!' ? word_len + 1 : 0);
max_word_len = MAX(word_len, max_word_len);
}
}
-/* ========================================================================= */
-/* simple text drawing functions */
-/* ========================================================================= */
+// ============================================================================
+// simple text drawing functions
+// ============================================================================
-void DrawInitText(char *text, int ypos, int font_nr)
+static void DrawInitTextExt(char *text, int ypos, int font_nr, boolean update)
{
LimitScreenUpdates(TRUE);
UPDATE_BUSY_STATE();
+ if (!text_drawing_enabled)
+ return;
+
if (window != NULL &&
gfx.draw_init_text &&
gfx.num_fonts > 0 &&
int width = video.width;
int height = getFontHeight(font_nr);
- ClearRectangle(drawto, 0, y, width, height);
- DrawTextExt(drawto, x, y, text, font_nr, BLIT_OPAQUE);
+ ClearRectangleOnBackground(drawto, 0, y, width, height);
+ DrawTextExt(drawto, x, y, text, font_nr, BLIT_MASKED);
- BlitBitmap(drawto, window, 0, 0, video.width, video.height, 0, 0);
+ if (update)
+ BlitBitmap(drawto, window, 0, 0, video.width, video.height, 0, 0);
}
}
+void DrawInitText(char *text, int ypos, int font_nr)
+{
+ DrawInitTextExt(text, ypos, font_nr, FALSE);
+}
+
+void DrawInitTextHead(char *text)
+{
+ DrawInitTextExt(text, 120, FC_GREEN, FALSE);
+}
+
+void DrawInitTextItem(char *text)
+{
+ DrawInitTextExt(text, 150, FC_YELLOW, TRUE);
+}
+
void DrawTextF(int x, int y, int font_nr, char *format, ...)
{
char buffer[MAX_OUTPUT_LINESIZE + 1];
va_end(ap);
if (strlen(buffer) > MAX_OUTPUT_LINESIZE)
- Error(ERR_EXIT, "string too long in DrawTextF() -- aborting");
+ Fail("string too long in DrawTextF() -- aborting");
DrawText(gfx.sx + x, gfx.sy + y, buffer, font_nr);
}
va_end(ap);
if (strlen(buffer) > MAX_OUTPUT_LINESIZE)
- Error(ERR_EXIT, "string too long in DrawTextFCentered() -- aborting");
+ Fail("string too long in DrawTextFCentered() -- aborting");
DrawText(gfx.sx + (gfx.sxsize - getTextWidth(buffer, font_nr)) / 2,
gfx.sy + y, buffer, font_nr);
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);
+ gfx.sy + y, text, font_nr);
}
void DrawText(int x, int y, char *text, int font_nr)
int src_x, src_y;
char *text_ptr = text;
+ if (!text_drawing_enabled)
+ return;
+
+#if DEBUG
+ Debug("font:token", "'%s' / '%s'",
+ gfx.get_token_from_font_function(font_nr), text);
+#endif
+
if (font->bitmap == NULL)
return;
- /* skip text to be printed outside the window (left/right will be clipped) */
+ // 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 */
+ // add offset for drawing font characters
dst_x += font->draw_xoffset;
dst_y += font->draw_yoffset;
char c = *text_ptr++;
if (c == '\n')
- c = ' '; /* print space instead 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 */
+ // 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 */
+ // clip text at the right side of the window
if (dst_x + font_width > video.width)
break;
- if (mask_mode == BLIT_INVERSE) /* special mode for text gadgets */
+ if (mask_mode == BLIT_INVERSE) // special mode for text gadgets
{
- /* first step: draw solid colored rectangle (use "cursor" character) */
- if (strlen(text) == 1) /* only one char inverted => draw cursor */
+ // first step: draw solid colored rectangle (use "cursor" character)
+ if (strlen(text) == 1) // only one char inverted => draw cursor
{
Bitmap *cursor_bitmap;
int cursor_x, cursor_y;
font_width, font_height, dst_x, dst_y);
}
- /* second step: draw masked inverted character */
+ // second step: draw masked inverted character
SDLCopyInverseMasked(src_bitmap, dst_bitmap, src_x, src_y,
font_width, font_height, dst_x, dst_y);
}
{
if (mask_mode == BLIT_ON_BACKGROUND)
{
- /* clear font character background */
+ // clear font character background
ClearRectangleOnBackground(dst_bitmap, dst_x, dst_y,
font_width, font_height);
}
BlitBitmapMasked(src_bitmap, dst_bitmap, src_x, src_y,
font_width, font_height, dst_x, dst_y);
}
- else /* normal, non-masked font blitting */
+ else // normal, non-masked font blitting
{
BlitBitmap(src_bitmap, dst_bitmap, src_x, src_y,
font_width, font_height, dst_x, dst_y);
}
-/* ========================================================================= */
-/* text buffer drawing functions */
-/* ========================================================================= */
+// ============================================================================
+// text buffer drawing functions
+// ============================================================================
#define MAX_LINES_FROM_FILE 1024
if (!(file = openFile(filename, MODE_READ)))
return NULL;
- buffer = checked_calloc(1); /* start with valid, but empty text buffer */
+ buffer = checked_calloc(1); // start with valid, but empty text buffer
while (!checkEndOfFile(file) && num_lines < max_lines)
{
char line[MAX_LINE_LEN];
+ char *line_ptr;
+ int line_len;
- /* read next line of input file */
+ // read next line of input file
if (!getStringFromFile(file, line, MAX_LINE_LEN))
break;
+ line_len = strlen(line);
+
+ // cut trailing line break (this can be newline and/or carriage return)
+ for (line_ptr = &line[line_len]; line_ptr >= line; line_ptr--)
+ if ((*line_ptr == '\n' || *line_ptr == '\r') && *(line_ptr + 1) == '\0')
+ *line_ptr = '\0';
+
+ // re-add newline (so the result is terminated by newline, but not CR/LF)
+ if (strlen(line) != line_len)
+ strcat(line, "\n");
+
buffer = checked_realloc(buffer, strlen(buffer) + strlen(line) + 1);
strcat(buffer, line);
closeFile(file);
+ if (getTextEncoding(buffer) == TEXT_ENCODING_UTF_8)
+ {
+ char *body_latin1 = getLatin1FromUTF8(buffer);
+
+ checked_free(buffer);
+
+ buffer = body_latin1;
+ }
+
return buffer;
}
char *word_ptr;
int word_len;
- /* skip leading whitespaces */
+ if (strEqual(text_ptr, " ")) // special case: force line break
+ buffer_filled = TRUE;
+
+ // skip leading whitespaces
while (*text_ptr == ' ' || *text_ptr == '\t')
text_ptr++;
word_ptr = text_ptr;
word_len = 0;
- /* look for end of next word */
+ // look for end of next word
while (*word_ptr != ' ' && *word_ptr != '\t' && *word_ptr != '\0')
{
word_ptr++;
{
continue;
}
- else if (*text_ptr == '\n') /* special case: force empty line */
+ else if (*text_ptr == '\n') // special case: force empty line
{
if (buffer_len == 0)
text_ptr++;
- /* prevent printing of multiple empty lines */
+ // 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 */
+ // word fits into text buffer -- add word
if (buffer_len > 0)
buffer[buffer_len++] = ' ';
}
else if (buffer_len > 0)
{
- /* not enough space left for word in text buffer -- print buffer */
+ // 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 */
+ // word does not fit at all into empty text buffer -- cut word
strncpy(buffer, text_ptr, line_length);
buffer[line_length] = '\0';
if (!getTokenValueFromString(string, token, value))
return FALSE;
- if (**token != '.') /* token should begin with dot */
+ if (**token != '.') // token should begin with dot
return FALSE;
- for (ptr = *token; *ptr; ptr++) /* token should contain no whitespace */
+ 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 */
+ 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 line_spacing, int mask_mode,
- boolean centered, int current_line)
+static void DrawTextBuffer_Flush(int x, int y, char *buffer, int base_font_nr,
+ int font_nr, int line_length, int cut_length,
+ int mask_mode, boolean centered,
+ int current_ypos)
{
int buffer_len = strlen(buffer);
+ int base_font_width = getFontWidth(base_font_nr);
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 line_width = base_font_width * line_length;
+ int buffer_width = font_width * buffer_len;
+ int offset_xsize = (centered ? (line_width - buffer_width) / 2 : 0);
int final_cut_length = MAX(0, cut_length - offset_chars);
int xx = x + offset_xsize;
- int yy = y + current_line * (font_height + line_spacing);
+ int yy = y + current_ypos;
buffer[final_cut_length] = '\0';
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 line_spacing, int mask_mode, boolean autowrap,
- boolean centered, boolean parse_comments)
+static int DrawTextBufferExt(int x, int y, char *text_buffer, int base_font_nr,
+ int line_length, int cut_length, int max_lines,
+ int line_spacing, int mask_mode, boolean autowrap,
+ boolean centered, boolean parse_comments,
+ boolean is_text_area)
{
char buffer[line_length + 1];
int buffer_len;
+ int font_nr = base_font_nr;
+ int font_height = getFontHeight(font_nr);
+ int line_height = font_height + line_spacing;
int current_line = 0;
+ int current_ypos = 0;
+ int max_ysize = max_lines * line_height;
if (text_buffer == NULL || *text_buffer == '\0')
return 0;
buffer[0] = '\0';
buffer_len = 0;
- while (*text_buffer && current_line < max_lines)
+ while (*text_buffer && current_ypos < max_ysize)
{
char line[MAX_LINE_LEN + 1];
char *line_ptr;
int num_line_chars = MAX_LINE_LEN;
int i;
- /* copy next line from text buffer to line buffer (nearly fgets() style) */
+ // 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')
+ {
+ // in text areas, 'line_length' sized lines cause additional empty line
+ if (i == line_length && is_text_area)
+ text_buffer--;
+
break;
+ }
+ }
line[i] = '\0';
- /* prevent 'num_line_chars' sized lines to cause additional empty line */
+ // 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 '#') */
+ // 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 */
+ // 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)
+ // if found, flush the current buffer, if non-empty
+ if (buffer_len > 0 && current_ypos < max_ysize)
{
- DrawTextBuffer_Flush(x, y, buffer, font_nr, line_length, cut_length,
- line_spacing, mask_mode, centered, current_line);
-
+ DrawTextBuffer_Flush(x, y, buffer, base_font_nr, font_nr, line_length,
+ cut_length, mask_mode, centered, current_ypos);
+ current_ypos += line_height;
current_line++;
buffer[0] = '\0';
centered = get_boolean_from_string(value);
else if (strEqual(token, ".parse_comments"))
parse_comments = get_boolean_from_string(value);
+
+ // if font has changed, depending values need to be updated as well
+ font_height = getFontHeight(font_nr);
+ line_height = font_height + line_spacing;
}
continue;
}
- /* cut trailing newline and carriage return from input line */
+ // cut trailing newline and carriage return from input line
for (line_ptr = line; *line_ptr; line_ptr++)
{
if (*line_ptr == '\n' || *line_ptr == '\r')
}
}
- if (strlen(line) == 0) /* special case: force empty line */
+ if (strlen(line) == 0) // special case: force empty line
strcpy(line, "\n");
line_ptr = line;
- while (*line_ptr && current_line < max_lines)
+ while (*line_ptr && current_ypos < max_ysize)
{
boolean buffer_filled;
if (buffer_filled)
{
- DrawTextBuffer_Flush(x, y, buffer, font_nr, line_length, cut_length,
- line_spacing, mask_mode, centered, current_line);
+ DrawTextBuffer_Flush(x, y, buffer, base_font_nr, font_nr, line_length,
+ cut_length, mask_mode, centered, current_ypos);
+ current_ypos += line_height;
current_line++;
last_line_was_empty = (buffer_len == 0);
}
}
- if (buffer_len > 0 && current_line < max_lines)
+ if (buffer_len > 0 && current_ypos < max_ysize)
{
- DrawTextBuffer_Flush(x, y, buffer, font_nr, line_length, cut_length,
- line_spacing, mask_mode, centered, current_line);
+ DrawTextBuffer_Flush(x, y, buffer, base_font_nr, font_nr, line_length,
+ cut_length, mask_mode, centered, current_ypos);
+ current_ypos += line_height;
current_line++;
}
return current_line;
}
+int DrawTextArea(int x, int y, char *text_buffer, int font_nr,
+ int line_length, int cut_length, int max_lines,
+ int line_spacing, int mask_mode, boolean autowrap,
+ boolean centered, boolean parse_comments)
+{
+ return DrawTextBufferExt(x, y, text_buffer, font_nr,
+ line_length, cut_length, max_lines,
+ line_spacing, mask_mode, autowrap,
+ centered, parse_comments, TRUE);
+}
+
+int DrawTextBuffer(int x, int y, char *text_buffer, int font_nr,
+ int line_length, int cut_length, int max_lines,
+ int line_spacing, int mask_mode, boolean autowrap,
+ boolean centered, boolean parse_comments)
+{
+ return DrawTextBufferExt(x, y, text_buffer, font_nr,
+ line_length, cut_length, max_lines,
+ line_spacing, mask_mode, autowrap,
+ centered, parse_comments, FALSE);
+}
+
+int DrawTextBufferS(int x, int y, char *text_buffer, int font_nr,
+ int line_length, int cut_length, int max_lines,
+ int line_spacing, int mask_mode, boolean autowrap,
+ boolean centered, boolean parse_comments)
+{
+ return DrawTextBuffer(gfx.sx + x, gfx.sy + y, text_buffer, font_nr,
+ line_length, cut_length, max_lines,
+ line_spacing, mask_mode, autowrap,
+ centered, parse_comments);
+}
+
int DrawTextBufferVA(int x, int y, char *format, va_list ap, int font_nr,
int line_length, int cut_length, int max_lines,
int line_spacing, int mask_mode, boolean autowrap,
int text_length = vsnprintf(text_buffer, MAX_OUTPUT_LINESIZE, format, ap);
if (text_length >= MAX_OUTPUT_LINESIZE)
- Error(ERR_WARN, "string too long in DrawTextBufferVA() -- truncated");
+ Warn("string too long in DrawTextBufferVA() -- truncated");
int num_lines_printed = DrawTextBuffer(x, y, text_buffer, font_nr,
line_length, cut_length, max_lines,
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