X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=lib%2Fvideo%2Ffont.cpp;h=8f34991358127325dc3bc4cd5abbc7e4a62ce6f5;hb=9da8c0c2d567d993abd71e5f31df0dcecf086d18;hp=f0bdaffc64ab2e93616e007ced5071859377e47c;hpb=5a69e137b5dd05607a5a359d0cc56f51aeb9ed0f;p=supertux.git

diff --git a/lib/video/font.cpp b/lib/video/font.cpp
index f0bdaffc6..8f3499135 100644
--- a/lib/video/font.cpp
+++ b/lib/video/font.cpp
@@ -71,50 +71,80 @@ Font::~Font()
 }
 
 float
-Font::get_height() const
+Font::get_text_width(const std::string& text) const
 {
-  return h;
+  /** Let's calculate the size of the biggest paragraph */
+  std::string::size_type l, hl, ol;
+  hl = 0; l = 0;
+  while(true)
+    {
+    ol = l;
+    l = text.find("\n", l+1);
+    if(l == std::string::npos)
+      break;
+    if(hl < l-ol)
+      hl = l-ol;
+    }
+  if(hl == 0)
+    hl = text.size();
+
+  return hl * w;
 }
 
 float
-Font::get_text_width(const std::string& text) const
+Font::get_text_height(const std::string& text) const
 {
-  return text.size() * w;
+  /** Let's calculate height of the text */
+  std::string::size_type l, hh;
+  hh = h; l = 0;
+  while(true)
+    {
+    l = text.find("\n", l+1);
+    if(l == std::string::npos)
+      break;
+    hh += h + 2;
+    }
+
+  return hh;
 }
 
-void
-Font::draw(const std::string& text, const Vector& pos, Uint32 drawing_effect)
+float
+Font::get_height() const
 {
-  if(shadowsize > 0)
-    draw_chars(shadow_chars, text, pos + Vector(shadowsize, shadowsize),
-               drawing_effect);
-
-  draw_chars(chars, text, pos, drawing_effect);
+  return h;
 }
 
 void
-Font::draw_center(const std::string& text, const Vector& pos, Uint32 drawing_effect)
+Font::draw(const std::string& text, const Vector& pos_, int allignment, Uint32 drawing_effect, int alpha)
 {
-  /* Cut lines changes into seperate strings, needed to support centering text
-     with break lines.
+  /* Cut lines changes into seperate strings, needed to support center/right text
+     allignments with break lines.
      Feel free to replace this hack with a more elegant solution
   */
   char temp[1024];
-  unsigned int i, l, y;
+  std::string::size_type l, i, y;
+  bool done = false;
   i = y = 0;
-  while(true)
+
+  while(!done)
     {
     l = text.find("\n", i);
     if(l == std::string::npos)
       {
-      temp[text.copy(temp, text.size() - i, i)] = '\0';
-      draw(temp, Vector(screen->w/2 - get_text_width(temp)/2 + pos.x, pos.y + y),
-           drawing_effect);
-      break;
+      l = text.size();
+      done = true;
       }
+
     temp[text.copy(temp, l - i, i)] = '\0';
-    draw(temp, Vector(screen->w/2 - get_text_width(temp)/2 + pos.x, pos.y + y),
-         drawing_effect);
+
+    // calculate X positions based on the allignment type
+    Vector pos = Vector(pos_);
+    if(allignment == CENTER_ALLIGN)
+      pos.x -= get_text_width(temp) / 2;
+    else if(allignment == RIGHT_ALLIGN)
+      pos.x -= get_text_width(temp);
+
+    draw_text(temp, pos + Vector(0,y), drawing_effect, alpha);
 
     i = l+1;
     y += h + 2;
@@ -122,8 +152,18 @@ Font::draw_center(const std::string& text, const Vector& pos, Uint32 drawing_eff
 }
 
 void
+Font::draw_text(const std::string& text, const Vector& pos, Uint32 drawing_effect, int alpha)
+{
+  if(shadowsize > 0)
+    draw_chars(shadow_chars, text, pos + Vector(shadowsize, shadowsize),
+               drawing_effect, alpha);
+
+  draw_chars(chars, text, pos, drawing_effect, alpha);
+}
+
+void
 Font::draw_chars(Surface* pchars, const std::string& text, const Vector& pos,
-                 Uint32 drawing_effect)
+                 Uint32 drawing_effect, int alpha)
 {
   SurfaceImpl* impl = pchars->impl;
 
@@ -148,7 +188,7 @@ Font::draw_chars(Surface* pchars, const std::string& text, const Vector& pos,
     int source_x = (index % 16) * w;
     int source_y = (index / 16) * h;
 
-    impl->draw_part(source_x, source_y, p.x, p.y, w, h, 255, drawing_effect);
+    impl->draw_part(source_x, source_y, p.x, p.y, w, h, alpha, drawing_effect);
     p.x += w;
   }
 }
@@ -180,7 +220,7 @@ void SuperTux::display_text_file(const std::string& file, float scroll_speed, Fo
 
   // Split text string lines into a vector
   names.clear();
-  unsigned int i, l;
+  std::string::size_type i, l;
   i = 0;
   while(true)
     {
@@ -272,9 +312,9 @@ void SuperTux::display_text_file(const std::string& file, float scroll_speed, Fo
           default: font = reference_font; break;
         }
 
-        context.draw_text_center(font,
+        context.draw_text(font,
             names[i].substr(1, names[i].size()-1),
-            Vector(0, screen->h + y - scroll), LAYER_FOREGROUND1);
+            Vector(screen->w/2, screen->h + y - scroll), CENTER_ALLIGN, LAYER_FOREGROUND1);
         y += font->get_height() + ITEMS_SPACE;
       }