Fix a display issue in wxStyledTextCtrl widgets in dialogs (Windows specific).

It happens when a text is using some esoteric unicode chars.
Fixes #15314
https://gitlab.com/kicad/code/kicad/-/issues/15314

eeschema/dialogs/dialog_field_properties.cpp

@@ -73,8 +73,16 @@ DIALOG_FIELD_PROPERTIES::DIALOG_FIELD_PROPERTIES( SCH_BASE_FRAME* aParent, const
             {
                 wxPostEvent( this, wxCommandEvent( wxEVT_COMMAND_BUTTON_CLICKED, wxID_OK ) );
             } );
+
     m_StyledTextCtrl->SetEOLMode( wxSTC_EOL_LF );   // Normalize EOL across platforms
 
+#ifdef _WIN32
+    // Without this setting, on Windows, some esoteric unicode chars create display issue
+    // in a wxStyledTextCtrl.
+    // for SetTechnology() info, see https://www.scintilla.org/ScintillaDoc.html#SCI_SETTECHNOLOGY
+    m_StyledTextCtrl->SetTechnology(wxSTC_TECHNOLOGY_DIRECTWRITE);
+#endif
+
     m_textColorSwatch->SetDefaultColor( COLOR4D::UNSPECIFIED );
     m_textColorSwatch->SetSwatchBackground( schematicBackground );
 

eeschema/dialogs/dialog_lib_textbox_properties.cpp

@@ -64,6 +64,13 @@ DIALOG_LIB_TEXTBOX_PROPERTIES::DIALOG_LIB_TEXTBOX_PROPERTIES( SYMBOL_EDIT_FRAME*
 
     m_textCtrl->SetEOLMode( wxSTC_EOL_LF );
 
+#ifdef _WIN32
+    // Without this setting, on Windows, some esoteric unicode chars create display issue
+    // in a wxStyledTextCtrl.
+    // for SetTechnology() info, see https://www.scintilla.org/ScintillaDoc.html#SCI_SETTECHNOLOGY
+    m_textCtrl->SetTechnology(wxSTC_TECHNOLOGY_DIRECTWRITE);
+#endif
+
     m_scintillaTricks = new SCINTILLA_TRICKS( m_textCtrl, wxT( "{}" ), false,
             [this]()
             {

eeschema/dialogs/dialog_text_properties.cpp

@@ -102,6 +102,13 @@ DIALOG_TEXT_PROPERTIES::DIALOG_TEXT_PROPERTIES( SCH_EDIT_FRAME* aParent, SCH_ITE
 
     m_textCtrl->SetEOLMode( wxSTC_EOL_LF );
 
+#ifdef _WIN32
+    // Without this setting, on Windows, some esoteric unicode chars create display issue
+    // in a wxStyledTextCtrl.
+    // for SetTechnology() info, see https://www.scintilla.org/ScintillaDoc.html#SCI_SETTECHNOLOGY
+    m_textCtrl->SetTechnology(wxSTC_TECHNOLOGY_DIRECTWRITE);
+#endif
+
     m_scintillaTricks = new SCINTILLA_TRICKS( m_textCtrl, wxT( "{}" ), false,
             [this]()
             {

pagelayout_editor/dialogs/properties_frame.cpp

@@ -83,6 +83,14 @@ PROPERTIES_FRAME::PROPERTIES_FRAME( PL_EDITOR_FRAME* aParent ) :
     m_stcText->SetUseVerticalScrollBar( false );
     m_stcText->SetUseHorizontalScrollBar( false );
     m_stcText->SetEOLMode( wxSTC_EOL_LF );  // Always use LF as eol char, regardless the platform
+
+#ifdef _WIN32
+    // Without this setting, on Windows, some esoteric unicode chars create display issue
+    // in a wxStyledTextCtrl.
+    // for SetTechnology() info, see https://www.scintilla.org/ScintillaDoc.html#SCI_SETTECHNOLOGY
+    m_stcText->SetTechnology(wxSTC_TECHNOLOGY_DIRECTWRITE);
+#endif
+
     m_scintillaTricks = new SCINTILLA_TRICKS( m_stcText, wxT( "{}" ), false );
 
     m_staticTextSizeInfo->SetFont( KIUI::GetInfoFont( this ).Italic() );

pcbnew/dialogs/dialog_text_properties.cpp

@@ -61,6 +61,13 @@ DIALOG_TEXT_PROPERTIES::DIALOG_TEXT_PROPERTIES( PCB_BASE_EDIT_FRAME* aParent, BO
 
     m_MultiLineText->SetEOLMode( wxSTC_EOL_LF );
 
+#ifdef _WIN32
+    // Without this setting, on Windows, some esoteric unicode chars create display issue
+    // in a wxStyledTextCtrl.
+    // for SetTechnology() info, see https://www.scintilla.org/ScintillaDoc.html#SCI_SETTECHNOLOGY
+    m_MultiLineText->SetTechnology(wxSTC_TECHNOLOGY_DIRECTWRITE);
+#endif
+
     m_scintillaTricks = new SCINTILLA_TRICKS( m_MultiLineText, wxT( "{}" ), false,
             [this]()
             {

pcbnew/dialogs/dialog_textbox_properties.cpp

@@ -54,6 +54,13 @@ DIALOG_TEXTBOX_PROPERTIES::DIALOG_TEXTBOX_PROPERTIES( PCB_BASE_EDIT_FRAME* aPare
 {
     m_MultiLineText->SetEOLMode( wxSTC_EOL_LF );
 
+#ifdef _WIN32
+    // Without this setting, on Windows, some esoteric unicode chars create display issue
+    // in a wxStyledTextCtrl.
+    // for SetTechnology() info, see https://www.scintilla.org/ScintillaDoc.html#SCI_SETTECHNOLOGY
+    m_MultiLineText->SetTechnology(wxSTC_TECHNOLOGY_DIRECTWRITE);
+#endif
+
     m_scintillaTricks = new SCINTILLA_TRICKS( m_MultiLineText, wxT( "{}" ), false,
             [this]()
             {