1 files changed, 84 insertions, 0 deletions
diff --git a/src/styleengine.hh b/src/styleengine.hh
new file mode 100644
index 00000000..66f28cee
--- /dev/null
+++ b/src/styleengine.hh
@@ -0,0 +1,84 @@
+#ifndef __STYLEENGINE_HH__
+#define __STYLEENGINE_HH__
+
+class StyleEngine;
+
+#include "dw/core.hh"
+#include "doctree.hh"
+#include "css.hh"
+#include "cssparser.hh"
+
+/**
+ * \brief This class provides the glue between HTML parser and CSS subsystem.
+ *
+ * It maintains a document tree and creates and caches style objects for use
+ * by the HTML parser.
+ * The HTML parser in turn informs StyleEngine about opened or closed
+ * HTML elements and their attributes via the startElement() / endElement()
+ * methods.
+ */
+class StyleEngine {
+   private:
+      class Node {
+         public:
+            dw::core::style::Style *style;
+            dw::core::style::Style *wordStyle;
+            const char *styleAttribute;
+            bool inheritBackgroundColor;
+      };
+
+      dw::core::Layout *layout;
+      lout::misc::SimpleVector <Node> *stack;
+      CssContext *cssContext;
+      Doctree *doctree;
+      int importDepth;
+
+      dw::core::style::Style *style0 (CssPropertyList *nonCssHints = NULL);
+      dw::core::style::Style *wordStyle0 (CssPropertyList *nonCssHints = NULL);
+      void apply (dw::core::style::StyleAttrs *attrs, CssPropertyList *props);
+      bool computeValue (int *dest, CssLength value,
+                         dw::core::style::Font *font);
+      bool computeValue (int *dest, CssLength value,
+                         dw::core::style::Font *font, int percentageBase);
+      bool computeLength (dw::core::style::Length *dest, CssLength value,
+                          dw::core::style::Font *font);
+      void computeBorderWidth (int *dest, CssProperty *p,
+                               dw::core::style::Font *font);
+
+   public:
+      StyleEngine (dw::core::Layout *layout);
+      ~StyleEngine ();
+
+      void parse (DilloHtml *html, DilloUrl *url, const char *buf, int buflen,
+                  CssOrigin origin);
+      void startElement (int tag);
+      void startElement (const char *tagname);
+      void setId (const char *id);
+      const char * getId () { return doctree->top ()->id; };
+      void setClass (const char *klass);
+      void setStyle (const char *style);
+      void endElement (int tag);
+      void setPseudoLink ();
+      void setPseudoVisited ();
+      void setNonCssHints (CssPropertyList *nonCssHints);
+      void inheritBackgroundColor (); /* \todo get rid of this somehow */
+      dw::core::style::Style *backgroundStyle ();
+
+      inline dw::core::style::Style *style () {
+         dw::core::style::Style *s = stack->getRef (stack->size () - 1)->style;
+         if (s)
+            return s;
+         else
+            return style0 ();
+      };
+
+      inline dw::core::style::Style *wordStyle () {
+         dw::core::style::Style *s = stack->getRef(stack->size()-1)->wordStyle;
+         if (s)
+            return s;
+         else
+            return wordStyle0 ();
+      };
+};
+
+#endif