cleanup of unnecessarily convoluted function call

[rocksndiamonds.git] / src / libgame / text.c

diff --git a/src/libgame/text.c b/src/libgame/text.c
index ce855daf9604496ddc89287ae8cade95676f37b7..1db4848f0170a0964414be29d4b64c784d13a3b3 100644 (file)
--- a/src/libgame/text.c
+++ b/src/libgame/text.c
@@ -16,18 +16,37 @@
 #include "misc.h"
 
 
+// ============================================================================
+// 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)
@@ -82,12 +101,13 @@ 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 = (unsigned char)c - 32;
 
   // map some special characters to their ascii values in default font
-  if (default_font)
+  if (font->num_chars == DEFAULT_NUM_CHARS_PER_FONT)
     font_pos = MAP_FONT_ASCII(c) - 32;
+  else if (font->num_chars == NUM_CHARS_PER_FONT_EXT)
+    font_pos = MAP_FONT_ASCII_EXT(c) - 32;
 
   // this allows dynamic special characters together with special font
   if (font_pos < 0 || font_pos >= font->num_chars)
@@ -142,6 +162,9 @@ static void DrawInitTextExt(char *text, int ypos, int font_nr, boolean update)
 
   UPDATE_BUSY_STATE();
 
+  if (!text_drawing_enabled)
+    return;
+
   if (window != NULL &&
       gfx.draw_init_text &&
       gfx.num_fonts > 0 &&
@@ -254,6 +277,14 @@ void DrawTextExt(DrawBuffer *dst_bitmap, int dst_x, int dst_y, char *text,
   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;
 
@@ -404,6 +435,9 @@ static boolean RenderLineToBuffer(char **src_buffer_ptr, char *dst_buffer,
     char *word_ptr;
     int word_len;
 
+    if (strEqual(text_ptr, "  "))      // special case: force line break
+      buffer_filled = TRUE;
+
     // skip leading whitespaces
     while (*text_ptr == ' ' || *text_ptr == '\t')
       text_ptr++;
@@ -491,16 +525,18 @@ static boolean getCheckedTokenValueFromString(char *string, char **token,
   return TRUE;
 }
 
-static void DrawTextBuffer_Flush(int x, int y, char *buffer, int font_nr,
-                                int line_length, int cut_length,
+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 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_ypos;
@@ -513,7 +549,7 @@ static void DrawTextBuffer_Flush(int x, int y, char *buffer, int font_nr,
     DrawText(xx, yy, buffer, font_nr);
 }
 
-static int DrawTextBufferExt(int x, int y, char *text_buffer, int font_nr,
+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,
@@ -521,6 +557,7 @@ static int DrawTextBufferExt(int x, int y, char *text_buffer, int font_nr,
 {
   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;
@@ -552,8 +589,8 @@ static int DrawTextBufferExt(int x, int y, char *text_buffer, int font_nr,
     {
       if ((line[i] = *text_buffer++) == '\n')
       {
-       // in text areas, 'line_length' sized lines cause additional empty line
-       if (i == line_length && is_text_area)
+       // in text areas, do not skip newline after text ending at last column
+       if (i > 0 && i % line_length == 0 && is_text_area)
          text_buffer--;
 
        break;
@@ -576,8 +613,8 @@ static int DrawTextBufferExt(int x, int y, char *text_buffer, int font_nr,
        // 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,
-                              mask_mode, centered, current_ypos);
+         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++;
 
@@ -647,8 +684,8 @@ static int DrawTextBufferExt(int x, int y, char *text_buffer, int font_nr,
 
       if (buffer_filled)
       {
-       DrawTextBuffer_Flush(x, y, buffer, font_nr, line_length, cut_length,
-                            mask_mode, centered, current_ypos);
+       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++;
 
@@ -662,8 +699,8 @@ static int DrawTextBufferExt(int x, int y, char *text_buffer, int font_nr,
 
   if (buffer_len > 0 && current_ypos < max_ysize)
   {
-    DrawTextBuffer_Flush(x, y, buffer, font_nr, line_length, cut_length,
-                        mask_mode, centered, current_ypos);
+    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++;
   }