Add support for more CSS styles to SPAN tag in wxHtmlWindow.

Add limited support font-family, font-style and text-decoration.

Closes #13170.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@70120 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -458,6 +458,7 @@ All (GUI):
 - Added wxDataViewItemAttr::SetBackgroundColour() and implemented it in generic
   wxDataViewCtrl (Andrew Xu).
 - Fix item alignment in icon view in the generic wxListCtrl.
+- Support font-family/style, text-decoration in wxHtmlWindow (Blake Oleander).
 
 GTK:
 

docs/doxygen/overviews/html.h

@@ -581,8 +581,14 @@ UL
 
 wxHTML doesn't really have CSS support but it does support a few simple styles:
 you can use @c "text-align", @c "width", @c "vertical-align" and @c
-"background" with all elements and for @c SPAN elements the @c "color", @c
+"background" with all elements and for @c SPAN elements a few other styles are
-"font-size" and @c "font-weight" are additionally recognized.
+additionally recognized:
+    - @c color
+    - @c font-family
+    - @c font-size (only in point units)
+    - @c font-style (only "oblique", "italic" and "normal" values are supported)
+    - @c font-weight (only "bold" and "normal" values are supported)
+    - @c text-decoration (only "underline" value is supported)
 
 */
 

src/html/m_span.cpp

@@ -36,6 +36,9 @@ TAG_HANDLER_BEGIN(SPAN, "SPAN" )
         wxColour oldclr = m_WParser->GetActualColor();
         int oldsize = m_WParser->GetFontSize();
         int oldbold = m_WParser->GetFontBold();
+        int olditalic = m_WParser->GetFontItalic();
+        int oldunderlined = m_WParser->GetFontUnderlined();
+        wxString oldfontface = m_WParser->GetFontFace();
 
         // Load any style parameters
         wxHtmlStyleParams styleParams(tag);
@@ -92,22 +95,60 @@ TAG_HANDLER_BEGIN(SPAN, "SPAN" )
             }
         }
 
+        str = styleParams.GetParam(wxS("font-style"));
+        if ( !str.empty() )
+        {
+            // "oblique" and "italic" are more or less the same.
+            // "inherit" (using the parent font) is not supported.
+            if ( str == wxS("oblique") || str == wxS("italic") )
+            {
+                m_WParser->SetFontItalic(true);
+                m_WParser->GetContainer()->InsertCell(
+                     new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
+            }
+            else if ( str == wxS("normal") )
+            {
+                m_WParser->SetFontItalic(false);
+                m_WParser->GetContainer()->InsertCell(
+                     new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
+            }
+        }
+
+        str = styleParams.GetParam(wxS("text-decoration"));
+        if ( !str.empty() )
+        {
+            // Only underline is supported.
+            if ( str == wxS("underline") )
+            {
+                m_WParser->SetFontUnderlined(true);
+                m_WParser->GetContainer()->InsertCell(
+                     new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
+            }
+        }
+
+        str = styleParams.GetParam(wxS("font-family"));
+        if ( !str.empty() )
+        {
+            m_WParser->SetFontFace(str);
+            m_WParser->GetContainer()->InsertCell(
+                 new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
+        }
+
         ParseInner(tag);
 
-        if (oldbold != m_WParser->GetFontBold())
+        m_WParser->SetFontSize(oldsize);
-        {
+        m_WParser->SetFontBold(oldbold);
-            m_WParser->SetFontBold(oldbold);
+        m_WParser->SetFontUnderlined(oldunderlined);
-            m_WParser->GetContainer()->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
+        m_WParser->SetFontFace(oldfontface);
-        }
+        m_WParser->SetFontItalic(olditalic);
-        if (oldsize != m_WParser->GetFontSize())
+        m_WParser->GetContainer()->InsertCell(
-        {
+                new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
-            m_WParser->SetFontSize(oldsize);
+
-            m_WParser->GetContainer()->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
-        }
         if (oldclr != m_WParser->GetActualColor())
         {
             m_WParser->SetActualColor(oldclr);
-            m_WParser->GetContainer()->InsertCell(new wxHtmlColourCell(oldclr));
+            m_WParser->GetContainer()->InsertCell(
+                new wxHtmlColourCell(oldclr));
         }
 
         return true;