X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Flibgame%2Ftext.c;h=83be1dfc0213e972569fa708731c121dd8458bbb;hb=462bca0782be497b984922afda26b5bf12bd3d75;hp=d7c264d87115e2609e221102cd3a2f28b89e8123;hpb=274935f49f49068998ad7b4ed9d93892aedfc6aa;p=rocksndiamonds.git

diff --git a/src/libgame/text.c b/src/libgame/text.c
index d7c264d8..83be1dfc 100644
--- a/src/libgame/text.c
+++ b/src/libgame/text.c
@@ -1,7 +1,7 @@
 /***********************************************************
 * Artsoft Retro-Game Library                               *
 *----------------------------------------------------------*
-* (c) 1994-2002 Artsoft Entertainment                      *
+* (c) 1994-2006 Artsoft Entertainment                      *
 *               Holger Schemel                             *
 *               Detmolder Strasse 189                      *
 *               33604 Bielefeld                            *
@@ -50,7 +50,7 @@ static void InitFontClipmasks()
 			       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;
@@ -58,7 +58,7 @@ static void InitFontClipmasks()
     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;
@@ -87,11 +87,11 @@ static void FreeFontClipmasks()
   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);
     }
@@ -130,6 +130,13 @@ void FreeFontInfo(struct FontBitmapInfo *font_bitmap_info)
   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);
@@ -149,12 +156,12 @@ int getTextWidth(char *text, int 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)
@@ -180,18 +187,24 @@ void getFontCharSource(int font_nr, char c, Bitmap **bitmap, int *x, int *y)
 
 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);
   }
 }
 
-void DrawTextFCentered(int y, int font_nr, char *format, ...)
+void DrawTextF(int x, int y, int font_nr, char *format, ...)
 {
   char buffer[MAX_OUTPUT_LINESIZE + 1];
   va_list ap;
@@ -201,13 +214,12 @@ void DrawTextFCentered(int y, int font_nr, char *format, ...)
   va_end(ap);
 
   if (strlen(buffer) > MAX_OUTPUT_LINESIZE)
-    Error(ERR_EXIT, "string too long in DrawTextFCentered() -- aborting");
+    Error(ERR_EXIT, "string too long in DrawTextF() -- aborting");
 
-  DrawText(gfx.sx + (gfx.sxsize - getTextWidth(buffer, font_nr)) / 2,
-	   gfx.sy + y, buffer, font_nr);
+  DrawText(gfx.sx + x, gfx.sy + y, buffer, font_nr);
 }
 
-void DrawTextF(int x, int y, int font_nr, char *format, ...)
+void DrawTextFCentered(int y, int font_nr, char *format, ...)
 {
   char buffer[MAX_OUTPUT_LINESIZE + 1];
   va_list ap;
@@ -217,9 +229,33 @@ void DrawTextF(int x, int y, int font_nr, char *format, ...)
   va_end(ap);
 
   if (strlen(buffer) > MAX_OUTPUT_LINESIZE)
-    Error(ERR_EXIT, "string too long in DrawTextF() -- aborting");
+    Error(ERR_EXIT, "string too long in DrawTextFCentered() -- aborting");
 
-  DrawText(gfx.sx + x, gfx.sy + y, buffer, font_nr);
+  DrawText(gfx.sx + (gfx.sxsize - getTextWidth(buffer, font_nr)) / 2,
+	   gfx.sy + y, buffer, font_nr);
+}
+
+void DrawTextS(int x, int y, int font_nr, char *text)
+{
+  DrawText(gfx.sx + x, gfx.sy + y, text, font_nr);
+}
+
+void DrawTextSCentered(int y, int font_nr, char *text)
+{
+  DrawText(gfx.sx + (gfx.sxsize - getTextWidth(text, font_nr)) / 2,
+	   gfx.sy + 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)
@@ -240,10 +276,19 @@ void DrawText(int x, int y, char *text, int font_nr)
 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;
@@ -251,19 +296,42 @@ void DrawTextExt(DrawBuffer *dst_bitmap, int dst_x, int dst_y, char *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) */
@@ -326,11 +394,11 @@ void DrawTextExt(DrawBuffer *dst_bitmap, int dst_x, int dst_y, char *text,
   }
 }
 
-void DrawTextToTextArea(int x, int y, char *text, int font_nr,
-			int area_xsize, int area_ysize)
+void DrawTextToTextArea(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 = getFontWidth(font_nr);
+  int font_height = getFontHeight(font_nr);
 
   if (text == NULL)
     return;
@@ -340,13 +408,227 @@ void DrawTextToTextArea(int x, int y, char *text, int font_nr,
     char buffer[MAX_OUTPUT_LINESIZE + 1];
     int i;
 
-    for (i=0; i < area_xsize && *text; i++)
+    for (i = 0; i < line_length && *text; i++)
       if ((buffer[i] = *text++) == '\n')
 	break;
-    buffer[i] = '\0';
+    buffer[MIN(i, area_xsize)] = '\0';
 
-    DrawText(x, y + area_line * font_height, buffer, font_nr);
+    DrawTextExt(drawto, x, y + area_line * font_height, buffer, font_nr,
+		mask_mode);
 
     area_line++;
   }
+
+  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)
+{
+  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;
+}
+
+void DrawTextWrapped(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)
+  {
+    buffer[0] = '\0';
+    buffer_len = 0;
+
+    RenderLineToBuffer(&text_ptr, buffer, &buffer_len, TRUE, line_length);
+
+    DrawText(x, y + current_line * font_height, buffer, font_nr);
+    current_line++;
+  }
+}
+
+int DrawTextFromFile(int x, int y, char *filename, int font_nr,
+		     int line_length, int max_lines, boolean rewrap)
+{
+  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 (rewrap)
+      {
+	buffer_filled = RenderLineToBuffer(&line_ptr,
+					   buffer, &buffer_len,
+					   last_line_was_empty,
+					   line_length);
+      }
+      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,
+						 last_line_was_empty,
+						 line_length);
+#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;
 }