Fix computation of the item offset in generic wxDataViewCtrl code.

We need to account for the expander even for the items that don't have
children when computing their offset as their parent still does have it,
contributing to the total offset.

This corrects the fixes of r68836 to also work for the leaf items.

Also rename expanderOffset variable to more clear itemOffset.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@68960 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/generic/datavgen.cpp b/src/generic/datavgen.cpp
index f4f3b1f80bb48fe6e40491382b4d6ec3e9914013..8143e146c9f5290c642f909ac2467847e63e0c6a 100644 (file)
--- a/src/generic/datavgen.cpp
+++ b/src/generic/datavgen.cpp
@@ -3524,23 +3524,22 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
     // button) and also determine the offset of the real cell start, skipping
     // the indentation and the expander itself.
     bool hoverOverExpander = false;
-    int expanderOffset = 0;
+    int itemOffset = 0;
     if ((!IsList()) && (GetOwner()->GetExpanderColumn() == col))
     {
         wxDataViewTreeNode * node = GetTreeNodeByRow(current);
-        if( node!=NULL && node->HasChildren() )
-        {
-            int indent = node->GetIndentLevel();
-            indent = GetOwner()->GetIndent()*indent;
 
+        int indent = node->GetIndentLevel();
+        itemOffset = GetOwner()->GetIndent()*indent;
+
+        if ( node->HasChildren() )
+        {
             // we make the rectangle we are looking in a bit bigger than the actual
             // visual expander so the user can hit that little thing reliably
-            wxRect rect( xpos + indent,
+            wxRect rect(itemOffset,
                         GetLineStart( current ) + (GetLineHeight(current) - m_lineHeight)/2,
                         m_lineHeight, m_lineHeight);
 
-            expanderOffset = indent + m_lineHeight;
-
             if( rect.Contains(x, y) )
             {
                 // So the mouse is over the expander
@@ -3558,6 +3557,10 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
                 m_underMouse = node;
             }
         }
+
+        // Account for the expander as well, even if this item doesn't have it,
+        // its parent does so it still counts for the offset.
+        itemOffset += m_lineHeight;
     }
     if (!hoverOverExpander)
     {
@@ -3832,9 +3835,9 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
             // notify cell about click
             cell->PrepareForItem(model, item, col->GetModelColumn());
 
-            wxRect cell_rect( xpos + expanderOffset,
+            wxRect cell_rect( xpos + itemOffset,
                               GetLineStart( current ),
-                              col->GetWidth() - expanderOffset,
+                              col->GetWidth() - itemOffset,
                               GetLineHeight( current ) );
 
             // Report position relative to the cell's custom area, i.e.