Add support for CSS "color", "size" and "font" to wxHTML <font>

Simply map them to the existing HTML parameters, just as we already do for a
few other styles.

Closes #16773.

docs/changes.txt

@@ -98,6 +98,7 @@ All (GUI):
 - Make results of wxDC::DrawEllipticArc() consistent across all platforms.
 - XRC handler for wxAuiToolBar added (Kinaou Hervé, David Hart).
 - Improve wxLIST_AUTOSIZE_XXX support in generic wxListCtrl (Kinaou Hervé).
+- Support "color", "size" and "font" CSS for fonts in wxHTML (Kinaou Hervé).
 - Add wxCursor::GetHotSpot().
 - Add wxFD_NO_FOLLOW style for wxFileDialog (Luca Bacci).
 - Add support for embedding bitmaps in generated SVG in wxSVGFileDC (iwbnwif).

src/html/htmltag.cpp

@@ -464,6 +464,9 @@ wxHtmlTag::wxHtmlTag(wxHtmlTag *parent,
         { "vertical-align",     "VALIGN"        },
         { "background",         "BGCOLOR"       },
         { "background-color",   "BGCOLOR"       },
+        { "color",              "COLOR"         },
+        { "size",               "SIZE"          },
+        { "face",               "FACE"          },
     };
 
     wxHtmlStyleParams styleParams(*this);
@@ -613,6 +616,10 @@ wxHtmlTag::GetParamAsIntOrPercent(const wxString& par,
     {
         isPercent = true;
     }
+    else if ( param.EndsWith("px", &num) )
+    {
+        isPercent = false;
+    }
     else
     {
         isPercent = false;

src/html/m_fonts.cpp

@@ -21,6 +21,7 @@
 #include "wx/html/m_templ.h"
 #include "wx/fontenum.h"
 #include "wx/tokenzr.h"
+#include "wx/html/styleparams.h"
 
 FORCE_LINK_ME(m_fonts)
 
@@ -35,9 +36,19 @@ TAG_HANDLER_BEGIN(FONT, "FONT" )
     TAG_HANDLER_PROC(tag)
     {
         wxColour oldclr = m_WParser->GetActualColor();
+        wxColour oldbackclr = m_WParser->GetActualBackgroundColor();
+        int oldbackmode = m_WParser->GetActualBackgroundMode();
         int oldsize = m_WParser->GetFontSize();
+        int oldbold = m_WParser->GetFontBold();
+        int olditalic = m_WParser->GetFontItalic();
+        int oldunderlined = m_WParser->GetFontUnderlined();
         wxString oldface = m_WParser->GetFontFace();
 
+        // Load any style parameters
+        wxHtmlStyleParams styleParams(tag);
+
+        ApplyStyle(styleParams);
+
         {
             wxColour clr;
             if (tag.GetParamAsColour(wxT("COLOR"), &clr))
@@ -45,6 +56,11 @@ TAG_HANDLER_BEGIN(FONT, "FONT" )
                 m_WParser->SetActualColor(clr);
                 m_WParser->GetContainer()->InsertCell(new wxHtmlColourCell(clr));
             }
+            if (tag.GetParamAsColour(wxT("BGCOLOR"), &clr))
+            {
+                m_WParser->SetActualBackgroundColor(clr);
+                m_WParser->GetContainer()->InsertCell(new wxHtmlColourCell(clr, wxHTML_CLR_BACKGROUND));
+            }
         }
 
         {
@@ -84,14 +100,33 @@ TAG_HANDLER_BEGIN(FONT, "FONT" )
 
         ParseInner(tag);
 
-        if (oldface != m_WParser->GetFontFace())
+        if ((oldface       != m_WParser->GetFontFace()) ||
+            (oldunderlined != m_WParser->GetFontUnderlined()) ||
+            (olditalic     != m_WParser->GetFontItalic()) ||
+            (oldbold       != m_WParser->GetFontBold()) ||
+            (oldsize       != m_WParser->GetFontSize()))
         {
-            m_WParser->SetFontFace(oldface);
+
-            m_WParser->GetContainer()->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
+            if (oldface != m_WParser->GetFontFace())
-        }
+            {
-        if (oldsize != m_WParser->GetFontSize())
+                m_WParser->SetFontFace(oldface);
-        {
+            }
-            m_WParser->SetFontSize(oldsize);
+            if (oldunderlined != m_WParser->GetFontUnderlined())
+            {
+                m_WParser->SetFontUnderlined(oldunderlined);
+            }
+            if (olditalic != m_WParser->GetFontItalic())
+            {
+                m_WParser->SetFontItalic(olditalic);
+            }
+            if (oldbold != m_WParser->GetFontBold())
+            {
+                m_WParser->SetFontBold(oldbold);
+            }
+            if (oldsize != m_WParser->GetFontSize())
+            {
+                m_WParser->SetFontSize(oldsize);
+            }
             m_WParser->GetContainer()->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
         }
         if (oldclr != m_WParser->GetActualColor())
@@ -99,6 +134,15 @@ TAG_HANDLER_BEGIN(FONT, "FONT" )
             m_WParser->SetActualColor(oldclr);
             m_WParser->GetContainer()->InsertCell(new wxHtmlColourCell(oldclr));
         }
+        if (oldbackmode != m_WParser->GetActualBackgroundMode() ||
+            oldbackclr != m_WParser->GetActualBackgroundColor())
+        {
+            m_WParser->SetActualBackgroundMode(oldbackmode);
+            m_WParser->SetActualBackgroundColor(oldbackclr);
+            m_WParser->GetContainer()->InsertCell(
+                new wxHtmlColourCell(oldbackclr, oldbackmode == wxTRANSPARENT ? wxHTML_CLR_TRANSPARENT_BACKGROUND : wxHTML_CLR_BACKGROUND));
+        }
+
         return true;
     }