class EDA_RECT: is no more derived from EDA_ITEM, just from EDA_RECT (reason: does not use anything in EDA_ITEM)

issue in cast to wxRect fixed (EDA_RECT accepts negative size, but not wxRect, so the wxRectcast  is normalized now).
This fixes some bugs.
A minor other bug fix in Pcbnew.

common/block_commande.cpp

@@ -40,9 +40,7 @@
 #include <block_commande.h>
 
 
-BLOCK_SELECTOR::BLOCK_SELECTOR() :
-    EDA_ITEM( BLOCK_LOCATE_STRUCT_TYPE ),
-    EDA_RECT()
+BLOCK_SELECTOR::BLOCK_SELECTOR() : EDA_RECT()
 {
     m_State   = STATE_NO_BLOCK; /* State (enum BlockState) of block. */
     m_Command = BLOCK_IDLE;     /* Type (enum CmdBlockType) of operation. */
@@ -188,7 +186,6 @@ void BLOCK_SELECTOR::Clear()
 {
     if( m_Command != BLOCK_IDLE )
     {
-        m_Flags   = 0;
         m_Command = BLOCK_IDLE;
         m_State   = STATE_NO_BLOCK;
         ClearItemsList();
@@ -206,7 +203,6 @@ bool EDA_DRAW_FRAME::HandleBlockBegin( wxDC* DC, int key, const wxPoint& startpo
     if( ( Block->m_Command != BLOCK_IDLE ) || ( Block->m_State != STATE_NO_BLOCK ) )
         return false;
 
-    Block->ClearFlags();
     Block->m_Command = (CmdBlockType) ReturnBlockCommand( key );
 
     if( Block->m_Command == 0 )
@@ -323,7 +319,6 @@ void AbortBlockCurrentCommand( EDA_DRAW_PANEL* Panel, wxDC* DC )
             screen->m_BlockLocate.ClearItemsList();
     }
 
-    screen->m_BlockLocate.ClearFlags();
     screen->m_BlockLocate.m_State = STATE_NO_BLOCK;
     screen->m_BlockLocate.m_Command = BLOCK_ABORT;
     Panel->GetParent()->HandleBlockEnd( DC );

eeschema/block.cpp

@@ -178,7 +178,7 @@ void SCH_EDIT_FRAME::HandleBlockPlace( wxDC* DC )
 
     OnModify();
 
-    // clear struct.m_Flags.
+    // clear dome flags and pointers
     GetScreen()->ClearDrawingState();
     GetScreen()->ClearBlockCommand();
     GetScreen()->SetCurItem( NULL );
@@ -308,7 +308,6 @@ bool SCH_EDIT_FRAME::HandleBlockEnd( wxDC* DC )
 
     if( ! nextcmd )
     {
-        block->ClearFlags();
         block->m_State   = STATE_NO_BLOCK;
         block->m_Command = BLOCK_IDLE;
         GetScreen()->SetCurItem( NULL );

eeschema/block_libedit.cpp

@@ -201,7 +201,6 @@ bool LIB_EDIT_FRAME::HandleBlockEnd( wxDC* DC )
         if( GetScreen()->m_BlockLocate.m_Command != BLOCK_SELECT_ITEMS_ONLY &&  m_component )
             m_component->ClearSelectedItems();
 
-        GetScreen()->m_BlockLocate.ClearFlags();
         GetScreen()->m_BlockLocate.m_State   = STATE_NO_BLOCK;
         GetScreen()->m_BlockLocate.m_Command = BLOCK_IDLE;
         GetScreen()->SetCurItem( NULL );
@@ -298,7 +297,6 @@ void LIB_EDIT_FRAME::HandleBlockPlace( wxDC* DC )
 
     OnModify();
 
-    GetScreen()->m_BlockLocate.ClearFlags();
     GetScreen()->m_BlockLocate.m_State   = STATE_NO_BLOCK;
     GetScreen()->m_BlockLocate.m_Command = BLOCK_IDLE;
     GetScreen()->SetCurItem( NULL );

include/base_struct.h

@@ -279,8 +279,15 @@ public:
     /**
      * Function operator(wxRect)
      * overloads the cast operator to return a wxRect
+     * wxRect does not accept negative values for size, so ensure the
+     * wxRect size is always >= 0
      */
-    operator wxRect() const { return wxRect( m_Pos, m_Size ); }
+    operator wxRect() const
+    {
+        EDA_RECT rect( m_Pos, m_Size );
+        rect.Normalize();
+        return wxRect( rect.m_Pos, rect.m_Size );
+    }
 
     /**
      * Function Inflate

include/block_commande.h

@@ -53,7 +53,7 @@ typedef enum {
 } CmdBlockType;
 
 
-class BLOCK_SELECTOR : public EDA_ITEM, public EDA_RECT
+class BLOCK_SELECTOR : public EDA_RECT
 {
 public:
     BlockState        m_State;                    /* State (enum BlockState)
@@ -143,10 +143,6 @@ public:
      * and clears the selected item list.
      */
     void Clear();
-
-#if defined(DEBUG)
-    void Show( int nestLevel, std::ostream& os ) const {}   // override
-#endif
 };
 
 

pcbnew/block_module_editor.cpp

@@ -288,7 +288,6 @@ void FOOTPRINT_EDIT_FRAME::HandleBlockPlace( wxDC* DC )
 
     OnModify();
 
-    GetScreen()->m_BlockLocate.ClearFlags();
     GetScreen()->m_BlockLocate.m_State   = STATE_NO_BLOCK;
     GetScreen()->m_BlockLocate.m_Command = BLOCK_IDLE;
     SetCurItem( NULL );

pcbnew/dialogs/dialog_pad_properties.cpp

@@ -690,8 +690,8 @@ if you do not want this pad plotted in gerber files");
     max_size.y = ABS( m_dummyPad->GetOffset().y );
     max_size.x += m_dummyPad->GetDrillSize().x / 2;
     max_size.y += m_dummyPad->GetDrillSize().y / 2;
-    if( ( m_dummyPad->GetSize().x / 2 <= max_size.x ) ||
-        ( m_dummyPad->GetSize().y / 2 <= max_size.y ) )
+    if( ( m_dummyPad->GetSize().x / 2 < max_size.x ) ||
+        ( m_dummyPad->GetSize().y / 2 < max_size.y ) )
     {
         error_msgs.Add( _( "Incorrect value for pad offset" ) );
     }

pcbnew/plot_rtn.cpp

@@ -747,8 +747,8 @@ void PCB_BASE_FRAME::Plot_Layer( PLOTTER* plotter, int Layer, EDA_DRAW_MODE_T tr
 }
 
 
-/* Plot a copper layer or mask in HPGL format.
- * HPGL unit = 0.98 mils (1 mil = 1.02041 unit HPGL).
+/* Plot a copper layer or mask.
+ * Silk screen layers are not plotted here.
  */
 void PCB_BASE_FRAME::Plot_Standard_Layer( PLOTTER*        aPlotter,
                                           int             aLayerMask,