cmake-gui: Support non-ASCII chars on Windows with Qt6

Since commit baead1e2a8 (Encoding: Remove option to use ANSI code page
internally, 2016-11-01, v3.8.0-rc1~358^2), we always use UTF-8 strings
internally.  Using fromLocal8Bit/toLocal8Bit + QTextCodec is no longer
needed.  Convert to fromStdString/toStdString instead, which should work
both with Qt5 and Qt6.

Fixes: #23565

1 files changed, 3 insertions, 3 deletions

diff --git a/Source/QtDialog/QCMakePresetItemModel.cxx b/Source/QtDialog/QCMakePresetItemModel.cxx
index 00a4e18..7ada2a5 100644
--- a/Source/QtDialog/QCMakePresetItemModel.cxx
+++ b/Source/QtDialog/QCMakePresetItemModel.cxx
@@ -17,12 +17,12 @@ QVariant QCMakePresetItemModel::data(const QModelIndex& index, int role) const
       // AccessibleDescriptionRole. This was determined by looking at
       // QComboBoxDelegate::isSeparator() (located in qcombobox_p.h.)
       if (index.internalId() == SEPARATOR_INDEX) {
-        return QString::fromLocal8Bit("separator");
+        return QString("separator");
       }
       return QString{};
     case Qt::DisplayRole: {
       if (index.internalId() == CUSTOM_INDEX) {
-        return QString::fromLocal8Bit("<custom>");
+        return QString("<custom>");
       }
       if (index.internalId() == SEPARATOR_INDEX) {
         return QVariant{};
@@ -32,7 +32,7 @@ QVariant QCMakePresetItemModel::data(const QModelIndex& index, int role) const
     }
     case Qt::ToolTipRole:
       if (index.internalId() == CUSTOM_INDEX) {
-        return QString::fromLocal8Bit("Specify all settings manually");
+        return QString("Specify all settings manually");
       }
       if (index.internalId() == SEPARATOR_INDEX) {
         return QVariant{};