Grid tricks: cell selection fixes.

CHANGED: First click sets a cursor to the specified cell, second click
activates editor (current realization, where first click activates cell
editor, is very buggy especially with cells selection).

Set cursor on cell of reference on mouse left click in Fields editor of
Eeschema.

common/grid_tricks.cpp

@@ -65,6 +65,8 @@ bool GRID_TRICKS::toggleCell( int aRow, int aCol )
 
     if( isCheckbox )
     {
+        m_grid->SetGridCursor( aRow, aCol );
+
         wxGridTableBase* model = m_grid->GetTable();
 
         if( model->CanGetValueAs( aRow, aCol, wxGRID_VALUE_BOOL )
@@ -97,13 +99,13 @@ bool GRID_TRICKS::toggleCell( int aRow, int aCol )
 
 bool GRID_TRICKS::showEditor( int aRow, int aCol )
 {
+    m_grid->SetGridCursor( aRow, aCol );
+
     if( m_grid->IsEditable() && !m_grid->IsReadOnly( aRow, aCol ) )
     {
         if( m_grid->GetSelectionMode() == wxGrid::wxGridSelectRows )
             m_grid->SelectRow( aRow );
 
-        m_grid->SetGridCursor( aRow, aCol );
-
         // For several reasons we can't enable the control here.  There's the whole
         // SetInSetFocus() issue/hack in wxWidgets, and there's also wxGrid's MouseUp
         // handler which doesn't notice it's processing a MouseUp until after it has
@@ -122,9 +124,10 @@ void GRID_TRICKS::onGridCellLeftClick( wxGridEvent& aEvent )
     int row = aEvent.GetRow();
     int col = aEvent.GetCol();
 
-    // Don't make users click twice to toggle a checkbox or edit a text cell
+    // Activate editor only if a cursor is placed on the clicked cell
-
+    if( !aEvent.GetModifiers() &&
-    if( !aEvent.GetModifiers() )
+        m_grid->GetGridCursorRow() == row &&
+        m_grid->GetGridCursorCol() == col )
     {
         if( toggleCell( row, col ) )
             return;
@@ -150,17 +153,24 @@ void GRID_TRICKS::onMouseUp( wxMouseEvent& aEvent )
     {
         // Some wxGridCellEditors don't have the SetInSetFocus() hack.  Even when they do,
         // it sometimes fails.  Activating the control here seems to avoid those issues.
-        if( m_grid->CanEnableCellControl() )
+        m_showEditorOnMouseUp = false;
+        // Mouse button can be pressed on one cell but be released on another
+        // cell (when range of cells is selecting, for example).
+        // So it must be checked.
+        wxGridCellCoords curCell = wxGridCellCoords( m_grid->GetGridCursorRow(),
+                                                     m_grid->GetGridCursorCol() );
+        wxGridCellCoords eventCell = m_grid->XYToCell( m_grid->CalcUnscrolledPosition( aEvent.GetPosition() ) );
+        if( eventCell == curCell && m_grid->CanEnableCellControl() )
         {
             // Yes, the first of these also shows the control.  Well, at least sometimes.
             // The second call corrects those (as yet undefined) "other times".
             m_grid->EnableCellEditControl();
             m_grid->ShowCellEditControl();
+            return;
         }
-        m_showEditorOnMouseUp = false;
     }
-    else
+
-        aEvent.Skip();
+    aEvent.Skip();
 }
 
 

eeschema/dialogs/dialog_fields_editor_global.cpp

@@ -977,6 +977,9 @@ void DIALOG_FIELDS_EDITOR_GLOBAL::OnTableCellClick( wxGridEvent& event )
 {
     if( event.GetCol() == REFERENCE )
     {
+        m_grid->ClearSelection();
+        m_grid->SetGridCursor( event.GetRow(), event.GetCol() );
+
         // Clear highligted symbols, if any
         m_parent->GetCanvas()->GetView()->HighlightItem( nullptr, nullptr );
         m_parent->GetCanvas()->Refresh();