Make a better text rendering system and a simple example in titlestate

1 files changed, 46 insertions, 2 deletions

diff --git a/src/graphics/text.h b/src/graphics/text.h
index 22179f5..f60980c 100644
--- a/src/graphics/text.h
+++ b/src/graphics/text.h
@@ -3,15 +3,59 @@
 #include"textureFont.h"
 
 namespace Graphics {
+
+    template<typename Font>
     class Text : public sf::Drawable, public sf::Transformable  {
         private:
-            TextureFont &font_;
+            Font &font_;
             const std::string text_;
             sf::VertexArray vertices_;
+            unsigned int size_, maxWidth_, maxHeight_;
+
+            void arrange(Font &font); // Specialize for sf::Font and TextureFont
+
         public:
-            Text(TextureFont &font, const std::string &text);
+            Text(Font &font, const std::string &text, unsigned int maxWidth=0,
+                    unsigned int maxHeight=0);
+
+            void setFont(Font &font);
+            void setText(const std::string &text);
+
             virtual void draw(sf::RenderTarget& target,
                     sf::RenderStates states) const override;
     };
+
+    template <typename Font>
+    Text<Font>::Text(Font &font, const std::string &text,
+            unsigned int maxWidth, unsigned int maxHeight)
+        : font_(font)
+        , text_(text)
+        , vertices_(sf::Quads, text.size()*4)
+        , size_(0)
+        , maxWidth_(maxWidth)
+        , maxHeight_(maxHeight)
+    {
+        arrange(font);
+    }
+
+
+    template <typename Font>
+    void Text<Font>::draw(sf::RenderTarget& target, sf::RenderStates states) const
+    {
+        // TODO: only repaint if needed: when repainting is needed
+        // vertices_.clear() and fun
+        states.transform *= getTransform();
+        states.texture = font_.getTexture(size_);
+        // you may also override states.shader or states.blendMode if you want
+        target.draw(vertices_, states);
+    }
+
+    template <typename Font>
+    void Text<Font>::setFont(Font &font){
+        font_ = font;
+        arrange(font);
+    }
 }
+
+
 #endif // GRAPHICS_TEXT_H