GUI: headers: re-translate tree view items on interface language change

ChangeLog

@@ -1,3 +1,8 @@
+2015-10-18  Moritz Bunkus  <moritz@bunkus.org>
+
+        * MKVToolNix GUI: header editor bug fix: the tree items weren't
+        re-translated when the GUI language was changed.
+
 2015-10-17  Moritz Bunkus  <moritz@bunkus.org>
 
         * MKVToolNix GUI: bug fix (Linux): the function "open folder" was

src/mkvtoolnix-gui/header_editor/page_base.cpp

@@ -71,4 +71,10 @@ PageBase::title()
   return Q(m_title.get_translated());
 }
 
+void
+PageBase::setItems(QList<QStandardItem *> const &items)
+  const {
+  items.at(0)->setText(title());
+}
+
 }}}

src/mkvtoolnix-gui/header_editor/page_base.h

@@ -38,6 +38,7 @@ public:
   virtual bool validateThis() const = 0;
   virtual void retranslateUi() = 0;
   virtual QString title() const;
+  virtual void setItems(QList<QStandardItem *> const &items) const;
 };
 
 }}}

src/mkvtoolnix-gui/header_editor/page_model.cpp

@@ -32,14 +32,17 @@ PageModel::appendPage(PageBase *page,
   page->retranslateUi();
 
   auto parentItem = parentIdx.isValid() ? itemFromIndex(parentIdx) : invisibleRootItem();
-  auto newItem    = new QStandardItem{};
+  auto newItems   = QList<QStandardItem *>{};
 
-  newItem->setData(static_cast<unsigned int>(m_pages.count()), Util::HeaderEditorPageIdRole);
-  newItem->setText(page->title());
+  for (auto idx = columnCount(); idx > 0; --idx)
+    newItems << new QStandardItem{};
 
-  parentItem->appendRow(newItem);
+  newItems[0]->setData(static_cast<unsigned int>(m_pages.count()), Util::HeaderEditorPageIdRole);
 
-  page->m_pageIdx = indexFromItem(newItem);
+  parentItem->appendRow(newItems);
+
+  page->m_pageIdx = indexFromItem(newItems[0]);
+  page->setItems(newItems);
 
   m_pages << page;
   if (!parentIdx.isValid())
@@ -83,4 +86,28 @@ PageModel::validate()
   return QModelIndex{};
 }
 
+QList<QStandardItem *>
+PageModel::itemsForIndex(QModelIndex const &idx) {
+  auto items = QList<QStandardItem *>{};
+  for (auto column = 0, numColumns = columnCount(); column < numColumns; ++column)
+    items << itemFromIndex(idx.sibling(idx.row(), column));
+
+  return items;
+}
+
+void
+PageModel::retranslateUi() {
+  Util::setDisplayableAndSymbolicColumnNames(*this, {
+    { QY("Type"),                    Q("type")             },
+  });
+
+  // horizontalHeaderItem(4)->setTextAlignment(Qt::AlignRight | Qt::AlignVCenter);
+
+  Util::walkTree(*this, QModelIndex{}, [=](QModelIndex const &currentIdx) {
+    auto page = selectedPage(currentIdx);
+    if (page)
+      page->setItems(itemsForIndex(currentIdx));
+  });
+}
+
 }}}

src/mkvtoolnix-gui/header_editor/page_model.h

@@ -31,6 +31,10 @@ public:
   void reset();
 
   QModelIndex validate() const;
+
+  void retranslateUi();
+
+  QList<QStandardItem *> itemsForIndex(QModelIndex const &idx);
 };
 
 }}}

src/mkvtoolnix-gui/header_editor/tab.cpp

@@ -212,6 +212,8 @@ Tab::retranslateUi() {
   auto &pages = m_model->pages();
   for (auto const &page : pages)
     page->retranslateUi();
+
+  m_model->retranslateUi();
 }
 
 void