Added support for break lines for get_text_width() - returns the size of the largest...

Also added a get_text_height() that also supports break lines - returns the size of all the paragraphs.

SVN-Revision: 1667

diff --git a/lib/video/font.cpp b/lib/video/font.cpp
index f0bdaff..f6a3254 100644 (file)
--- a/lib/video/font.cpp
+++ b/lib/video/font.cpp
@@ -71,15 +71,46 @@ 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 */
+  int l, hl;
+  hl = 0; l = -1;
+  while(true)
+    {
+    l = text.find("\n", l+1);
+    if(l == (int)std::string::npos)
+      break;
+    if(hl < l)
+      hl = l;
+    }
+  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
+{
+  /** Let's calculate height of the text */
+  int l, hh;
+  hh = h; l = -1;
+  while(true)
+    {
+    l = text.find("\n", l+1);
+    if(l == (int)std::string::npos)
+      break;
+    hh += h + 2;
+    }
+
+  return hh;
+}
+
+float
+Font::get_height() const
 {
-  return text.size() * w;
+  return h;
 }
 
 void

diff --git a/lib/video/font.h b/lib/video/font.h
index dd6de77..bf4ebd5 100644 (file)
--- a/lib/video/font.h
+++ b/lib/video/font.h
@@ -42,14 +42,24 @@ namespace SuperTux
       Font(const std::string& file, FontType type, int w, int h, int shadowsize=2);
       ~Font();
 
-      /// returns the height of the font.
-      float get_height() const;
       /** returns the width of a given text. (Note that I won't add a normal
        * get_width function here, as we might switch to variable width fonts in the
-       * future.
+       * future.)
+       * Supports breaklines.
        */
       float get_text_width(const std::string& text) const;
 
+      /** returns the height of a given text. (Note that I won't add a normal
+       * get_width function here, as we might switch to variable width fonts in the
+       * future.)
+       * Supports breaklines.
+       * In case, you are positive that your text doesn't use break lines, you can
+       * just use get_height().
+       */
+      float get_text_height(const std::string& text) const;
+      /// returns the height of the font.
+      float get_height() const;
+
     private:
       friend class DrawingContext;