Support foreground gradient in CSS parser and HTML generator

Qt supports some complex foreground brushes which we cannot
express using normal CSS, so we introduce a Qt-specific property
for this. We already had some support for background gradients
in widget style sheets, but this expands support to foreground
brushes of text when converting a QTextDocument from and to HTML.

It also adds an optional "coordinatemode" attribute to the
gradient functions so that this can be faithfully restored from HTML.

Task-number: QTBUG-123357
Change-Id: I3d6dd828f68272995c8525bec5a7b421fdbed670
Reviewed-by: Eirik Aavitsland <[email protected]>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/gui/text/qtexthtmlparser.cpp b/src/gui/text/qtexthtmlparser.cpp
index df6e6788277..05b9a1385f1 100644
--- a/src/gui/text/qtexthtmlparser.cpp
+++ b/src/gui/text/qtexthtmlparser.cpp
@@ -1405,6 +1405,12 @@ void QTextHtmlParserNode::applyCssDeclarations(const QList<QCss::Declaration> &d
             }
             break;
         }
+        case QCss::QtForeground:
+        {
+            QBrush brush = decl.brushValue();
+            charFormat.setForeground(brush);
+            break;
+        }
         default: break;
         }
     }