X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Flibgame%2Ftext.c;h=de70abc34c6faeb0289e2330ec0cc0347a9981a1;hb=fa628a204ea4662806244b0ed994a48b40ece2ca;hp=a33bf11a702698ca0b39315245157864a8e146a8;hpb=e57078603232563176d90bb543ce2bc3a15b889e;p=rocksndiamonds.git

diff --git a/src/libgame/text.c b/src/libgame/text.c
index a33bf11a..de70abc3 100644
--- a/src/libgame/text.c
+++ b/src/libgame/text.c
@@ -27,34 +27,11 @@ static GC	font_clip_gc = None;
 
 static void InitFontClipmasks()
 {
-  static int last_num_fonts = 0;
   XGCValues clip_gc_values;
   unsigned long clip_gc_valuemask;
   GC copy_clipmask_gc;
   int i, j;
 
-  if (gfx.num_fonts == 0 || gfx.font_bitmap_info[0].bitmap == NULL)
-    return;
-
-  for (i=0; i < last_num_fonts; i++)
-  {
-    if (gfx.font_bitmap_info[i].clip_mask)
-    {
-      for (j=0; j < gfx.font_bitmap_info[i].last_num_chars; j++)
-	XFreePixmap(display, gfx.font_bitmap_info[i].clip_mask[j]);
-      free(gfx.font_bitmap_info[i].clip_mask);
-    }
-
-    gfx.font_bitmap_info[i].clip_mask = NULL;
-    gfx.font_bitmap_info[i].last_num_chars = 0;
-  }
-
-  last_num_fonts = gfx.num_fonts;
-
-  if (font_clip_gc)
-    XFreeGC(display, font_clip_gc);
-  font_clip_gc = None;
-
   /* This stuff is needed because X11 (XSetClipOrigin(), to be precise) is
      often very slow when preparing a masked XCopyArea() for big Pixmaps.
      To prevent this, create small (tile-sized) mask Pixmaps which will then
@@ -73,16 +50,15 @@ 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;
 
     gfx.font_bitmap_info[i].clip_mask =
       checked_calloc(gfx.font_bitmap_info[i].num_chars * sizeof(Pixmap));
-    gfx.font_bitmap_info[i].last_num_chars = gfx.font_bitmap_info[i].num_chars;
 
-    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;
@@ -103,6 +79,31 @@ static void InitFontClipmasks()
 
   XFreeGC(display, copy_clipmask_gc);
 }
+
+static void FreeFontClipmasks()
+{
+  int i, j;
+
+  if (gfx.num_fonts == 0 || gfx.font_bitmap_info[0].bitmap == NULL)
+    return;
+
+  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++)
+	XFreePixmap(display, gfx.font_bitmap_info[i].clip_mask[j]);
+      free(gfx.font_bitmap_info[i].clip_mask);
+    }
+
+    gfx.font_bitmap_info[i].clip_mask = NULL;
+    gfx.font_bitmap_info[i].num_chars = 0;
+  }
+
+  if (font_clip_gc)
+    XFreeGC(display, font_clip_gc);
+  font_clip_gc = None;
+}
 #endif /* TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND */
 
 void InitFontInfo(struct FontBitmapInfo *font_bitmap_info, int num_fonts,
@@ -117,6 +118,18 @@ void InitFontInfo(struct FontBitmapInfo *font_bitmap_info, int num_fonts,
 #endif
 }
 
+void FreeFontInfo(struct FontBitmapInfo *font_bitmap_info)
+{
+  if (font_bitmap_info == NULL)
+    return;
+
+#if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
+  FreeFontClipmasks();
+#endif
+
+  free(font_bitmap_info);
+}
+
 int getFontWidth(int font_nr)
 {
   int font_bitmap_id = gfx.select_font_function(font_nr);
@@ -131,6 +144,11 @@ int getFontHeight(int font_nr)
   return gfx.font_bitmap_info[font_bitmap_id].height;
 }
 
+int getTextWidth(char *text, int font_nr)
+{
+  return (text != NULL ? strlen(text) * getFontWidth(font_nr) : 0);
+}
+
 static char getFontCharPosition(int font_nr, char c)
 {
   int font_bitmap_id = gfx.select_font_function(font_nr);
@@ -166,16 +184,14 @@ void DrawInitText(char *text, int ypos, int font_nr)
       gfx.num_fonts > 0 &&
       gfx.font_bitmap_info[font_nr].bitmap != NULL)
   {
-    int text_width = strlen(text) * getFontWidth(font_nr);
-
     ClearRectangle(window, 0, ypos, video.width, getFontHeight(font_nr));
-    DrawTextExt(window, (video.width - text_width) / 2, ypos, text, font_nr,
-		BLIT_OPAQUE);
+    DrawTextExt(window, (video.width - getTextWidth(text, font_nr)) / 2, ypos,
+		text, font_nr, BLIT_OPAQUE);
     FlushDisplay();
   }
 }
 
-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;
@@ -185,13 +201,12 @@ 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 - strlen(buffer) * getFontWidth(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;
@@ -201,9 +216,21 @@ 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 DrawText(int x, int y, char *text, int font_nr)
@@ -228,8 +255,11 @@ void DrawTextExt(DrawBuffer *dst_bitmap, int dst_x, int dst_y, char *text,
   struct FontBitmapInfo *font = &gfx.font_bitmap_info[font_bitmap_id];
   int font_width = getFontWidth(font_nr);
   int font_height = getFontHeight(font_nr);
+  int border_1 = gfx.sx + gfx.sxsize;
+  int border_2 = gfx.dx + gfx.dxsize;
   Bitmap *src_bitmap;
   int src_x, src_y;
+  int dst_x_start = dst_x;
   char *text_ptr = text;
 
   if (font->bitmap == NULL)
@@ -243,8 +273,16 @@ void DrawTextExt(DrawBuffer *dst_bitmap, int dst_x, int dst_y, char *text,
   {
     char c = *text_ptr++;
 
+    if (c == '\n')
+      c = ' ';		/* print space instaed of newline */
+
     getFontCharSource(font_nr, c, &src_bitmap, &src_x, &src_y);
 
+    /* make sure that text does not run off the screen at the right side */
+    if ((dst_x_start < border_1 && dst_x + font_width > border_1) ||
+	(dst_x_start < border_2 && dst_x + font_width > border_2))
+      break;
+
     if (mask_mode == BLIT_INVERSE)	/* special mode for text gadgets */
     {
       /* first step: draw solid colored rectangle (use "cursor" character) */
@@ -306,3 +344,211 @@ void DrawTextExt(DrawBuffer *dst_bitmap, int dst_x, int dst_y, char *text,
     dst_x += font_width;
   }
 }
+
+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 = getFontHeight(font_nr);
+
+  if (text == NULL)
+    return;
+
+  while (*text && area_line < area_ysize)
+  {
+    char buffer[MAX_OUTPUT_LINESIZE + 1];
+    int i;
+
+    for (i = 0; i < line_length && *text; i++)
+      if ((buffer[i] = *text++) == '\n')
+	break;
+    buffer[MIN(i, area_xsize)] = '\0';
+
+    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)
+{
+  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;
+}