Fix color usage in search result view.

Use the text editor's foreground and background colors everywhere. This
prevents "zebra patterns" in the text lines when using a dark background
color.

Change-Id: I9f072fa08e7d90b9840ad1e1fecee993fa14cedb
Reviewed-by: David Schulz <david.schulz@digia.com>

src/plugins/find/searchresulttreemodel.cpp

@@ -252,12 +252,10 @@ QVariant SearchResultTreeModel::data(const SearchResultTreeItem *row, int role)
             result = QVariant();
         break;
     case Qt::TextColorRole:
-        if (row->item.useTextEditorFont)
-            result = m_color.textForeground;
+        result = m_color.textForeground;
         break;
     case Qt::BackgroundRole:
-        if (row->item.useTextEditorFont)
-            result = m_color.textBackground;
+        result = m_color.textBackground;
         break;
     case ItemDataRoles::ResultLineRole:
     case Qt::DisplayRole:
@@ -273,12 +271,10 @@ QVariant SearchResultTreeModel::data(const SearchResultTreeItem *row, int role)
         result = row->item.icon;
         break;
     case ItemDataRoles::ResultHighlightBackgroundColor:
-        if (row->item.useTextEditorFont)
-            result = m_color.highlightBackground;
+        result = m_color.highlightBackground;
         break;
     case ItemDataRoles::ResultHighlightForegroundColor:
-        if (row->item.useTextEditorFont)
-            result = m_color.highlightForeground;
+        result = m_color.highlightForeground;
         break;
     case ItemDataRoles::SearchTermStartRole:
         result = row->item.textMarkPos;

src/plugins/find/searchresulttreeview.cpp

@@ -61,6 +61,10 @@ void SearchResultTreeView::setAutoExpandResults(bool expand)
 void SearchResultTreeView::setTextEditorFont(const QFont &font, const SearchResultColor color)
 {
     m_model->setTextEditorFont(font, color);
+
+    QPalette p = palette();
+    p.setColor(QPalette::Base, color.textBackground);
+    setPalette(p);
 }
 
 void SearchResultTreeView::clear()