fixing bug 626875. Cleaning code

Try to fix block selection issue with some windows managers.

common/drawpanel.cpp

@@ -1071,11 +1071,13 @@ void WinEDA_DrawPanel::OnMouseEvent( wxMouseEvent& event )
 #define MIN_DRAG_COUNT_FOR_START_BLOCK_COMMAND 5
 
     /* Count the drag events.  Used to filter mouse moves before starting a
-     * block command.  A block command can be started only if MinDragEventCount >
-     * MIN_DRAG_COUNT_FOR_START_BLOCK_COMMAND in order to avoid spurious block
-     * commands. */
+     * block command.  A block command can be started only if
+     * MinDragEventCount > MIN_DRAG_COUNT_FOR_START_BLOCK_COMMAND
+     * and m_CanStartBlock >= 0
+     * in order to avoid spurious block commands.
+     */
     static int MinDragEventCount;
-    if( event.Leaving() || event.Entering() )
+    if( event.Leaving() /*|| event.Entering()*/ )
     {
         m_CanStartBlock = -1;
     }
@@ -1118,11 +1120,6 @@ void WinEDA_DrawPanel::OnMouseEvent( wxMouseEvent& event )
     if( event.MiddleDown() )
         localbutt = GR_M_MIDDLE_DOWN;
 
-    if( event.ButtonDClick( 2 ) )
-    {
-    }
-    ;                               // Unused
-
     localrealbutt |= localbutt;     /* compensation default wxGTK */
 
     /* Compute the cursor position in screen (device) units. */

demos/interf_u/interf_u.pro

-update=22/07/2010 13:46:39
+update=31/08/2010 17:44:34
 version=1
 last_client=pcbnew
 [common]

pcbnew/drag.h

-/***************************************************************/
-/* Edition des Modules: Structures et variables de gestion des */
-/*		fonctions de "DRAG" des segments de piste				*/
-/***************************************************************/
+/**************************************************/
+/* Useful class and functions used to drag tracks */
+/**************************************************/
 
-/*** Class to handle a list of track segments to drag ***/
+/** Helper class to handle a list of track segments to drag
+ * and has info to undo/abort the move command
+ * a DRAG_SEGM manage one track segment or a via
+ */
 class DRAG_SEGM
 {
 public:
-
-    DRAG_SEGM* Pnext;       /* Pointeur de chainage */
     TRACK*  m_Segm;         /* pointeur sur le segment a "dragger */
     D_PAD*  m_Pad_Start;    /* pointeur sur le Pad origine si origine segment sur pad */
     D_PAD*  m_Pad_End;      /* pointeur sur le Pad fin si fin segment sur pad */
@@ -16,31 +16,43 @@ public:
 
 private:
     wxPoint m_StartInitialValue;
-    wxPoint    m_EndInitialValue; /* For abort: initial m_Start and m_End values for m_Segm */
+    wxPoint m_EndInitialValue;    // For abort: initial m_Start and m_End values for m_Segm
 
 
 public:
 
-    DRAG_SEGM( TRACK * segm );
-    ~DRAG_SEGM();
+    DRAG_SEGM( TRACK* segm );
+    ~DRAG_SEGM() {};
 
-    void SetInitialValues();
+    void SetInitialValues()
+    {
+        m_Segm->m_Start = m_StartInitialValue;
+        m_Segm->m_End   = m_EndInitialValue;
+    }
 };
 
 /* Variables */
 
-extern DRAG_SEGM* g_DragSegmentList;    /* pointe le debut de la liste
-                                         * des structures DRAG_SEGM */
+// a list of DRAG_SEGM items used to move or drag tracks.
+// Each DRAG_SEGM item points a segment to move.
+extern std::vector<DRAG_SEGM> g_DragSegmentList;
 
-/* routines specifiques */
+/* Functions */
 void Dessine_Segments_Dragges( WinEDA_DrawPanel* panel, wxDC* DC );
 void Build_Drag_Liste( WinEDA_DrawPanel* panel, wxDC* DC, MODULE* Module );
 void Build_1_Pad_SegmentsToDrag( WinEDA_DrawPanel* panel, wxDC* DC, D_PAD* PtPad );
 void Collect_TrackSegmentsToDrag( WinEDA_DrawPanel* panel, wxDC* DC,
                                   wxPoint& point, int MasqueLayer, int net_code );
-void    EraseDragListe();
 
 
+/** function EraseDragList
+ * clear the .m_Flags of all track segments managed by in g_DragSegmentList
+ * and clear the list.
+ * In order to avoid useless memory allocation, the memory is not freed
+ * and will be reused when creating a new list
+ */
+void EraseDragList();
+
 /* Add the segment"Track" to the drag list, and erase it from screen
  * flag = STARTPOINT (if the point to drag is the start point of Track)
  * or ENDPOINT

pcbnew/dragsegm.cpp

-/*********************************************************/
-/* Routines relatives a la gestions des pistes en "DRAG" */
-/*********************************************************/
+/*********************************/
+/* functions used to drag tracks */
+/*********************************/
 
 /* Fichier dragsegm.cpp */
 
 #include "fctsys.h"
-#include "gr_basic.h"
 #include "common.h"
 #include "class_drawpanel.h"
 #include "pcbnew.h"
-#include "autorout.h"
-
-#include "protos.h"
 
 #include "drag.h"
 
+/* a list of DRAG_SEGM items used to move or drag tracks */
+std::vector<DRAG_SEGM> g_DragSegmentList;
 
-DRAG_SEGM* g_DragSegmentList = NULL;    /* pointe le debut de la liste
-                                         * des structures DRAG_SEGM */
-
+/* helper class to handle a list of track segments to drag or move
+ */
 DRAG_SEGM::DRAG_SEGM( TRACK* segm )
 {
     m_Segm = segm;
     m_StartInitialValue = m_Segm->m_Start;
     m_EndInitialValue   = m_Segm->m_End;
-
     m_Pad_Start = m_Pad_End = NULL;
     m_Flag = 0;
 }
 
 
-DRAG_SEGM::~DRAG_SEGM()
-{
-}
-
-
-void DRAG_SEGM::SetInitialValues()
-{
-    m_Segm->m_Start = m_StartInitialValue;
-    m_Segm->m_End   = m_EndInitialValue;
-}
-
-
 /*******************************************************************/
 void Dessine_Segments_Dragges( WinEDA_DrawPanel* panel, wxDC* DC )
 /*******************************************************************/
@@ -49,38 +33,28 @@ void Dessine_Segments_Dragges( WinEDA_DrawPanel* panel, wxDC* DC )
 {
     D_PAD* pt_pad;
     TRACK* Track;
-    DRAG_SEGM* pt_drag;
 
-    if( g_DragSegmentList == NULL )
+    if( g_DragSegmentList.size() == 0 )
         return;
 
-    pt_drag = g_DragSegmentList;
-    for( ; pt_drag; pt_drag = pt_drag->Pnext )
+    for( unsigned ii = 0; ii < g_DragSegmentList.size(); ii++ )
     {
-        int px, py;
-
-        Track = pt_drag->m_Segm;
-
+        wxPoint pos;
+        Track = g_DragSegmentList[ii].m_Segm;
         Track->Draw( panel, DC, GR_XOR );   // erase from screen at old position
 
-        pt_pad = pt_drag->m_Pad_Start;
+        pt_pad = g_DragSegmentList[ii].m_Pad_Start;
         if( pt_pad )
         {
-            px = pt_pad->m_Pos.x - g_Offset_Module.x;
-            py = pt_pad->m_Pos.y - g_Offset_Module.y;
-
-            Track->m_Start.x = px;
-            Track->m_Start.y = py;
+            pos = pt_pad->m_Pos - g_Offset_Module;
+            Track->m_Start = pos;
         }
 
-        pt_pad = pt_drag->m_Pad_End;
+        pt_pad = g_DragSegmentList[ii].m_Pad_End;
         if( pt_pad )
         {
-            px = pt_pad->m_Pos.x - g_Offset_Module.x;
-            py = pt_pad->m_Pos.y - g_Offset_Module.y;
-
-            Track->m_End.x = px;
-            Track->m_End.y = py;
+            pos = pt_pad->m_Pos - g_Offset_Module;
+            Track->m_End = pos;
         }
 
         Track->Draw( panel, DC, GR_XOR );
@@ -91,13 +65,10 @@ void Dessine_Segments_Dragges( WinEDA_DrawPanel* panel, wxDC* DC )
 /*************************************************************************/
 void Build_Drag_Liste( WinEDA_DrawPanel* panel, wxDC* DC, MODULE* Module )
 /*************************************************************************/
-
-/* Construit la liste des segments connectes aus pads du module Module
- *  pour le drag de ces segments
- *  la liste est mise a l'adresse pointee par pt_drag.
- *  la variable globale nb_drag_segment est incrementee du nombre de segments
- *  Met l'attribut EDIT sur les segments selectionnes
- *  et les affiche en mode EDIT (sketch)
+/** Build the list of track segments connected to pads of a given module
+ *  by populate the std::vector<DRAG_SEGM> g_DragSegmentList
+ *  For each selected track segment set the EDIT flag
+ *  and redraw them in EDIT mode (sketch mode)
  */
 {
     D_PAD* pt_pad;
@@ -115,16 +86,18 @@ void Build_Drag_Liste( WinEDA_DrawPanel* panel, wxDC* DC, MODULE* Module )
 /**********************************************************************************/
 void Build_1_Pad_SegmentsToDrag( WinEDA_DrawPanel* panel, wxDC* DC, D_PAD* PtPad )
 /**********************************************************************************/
-
-/* Routine construisant la liste les segments de piste connectes au pad PtPad
- *  Les net_codes sont supposes a jour.
+/** Build the list of track segments connected to a given pad
+ *  by populate the std::vector<DRAG_SEGM> g_DragSegmentList
+ *  For each selected track segment set the EDIT flag
+ *  and redraw them in EDIT mode (sketch mode)
+ *  Net codes must be OK.
  */
 {
     TRACK*  Track;
     int     net_code = PtPad->GetNet();
     int     MasqueLayer;
     wxPoint pos;
-    BOARD*  pcb = ( (WinEDA_BasePcbFrame*) (panel->GetParent()) )->GetBoard();
+    BOARD*  pcb = ( (WinEDA_BasePcbFrame*)( panel->GetParent() ) )->GetBoard();
 
     Track = pcb->m_Track->GetStartNetCode( net_code );
 
@@ -133,21 +106,21 @@ void Build_1_Pad_SegmentsToDrag( WinEDA_DrawPanel* panel, wxDC* DC, D_PAD* PtPad
     for( ; Track; Track = Track->Next() )
     {
         if( Track->GetNet() != net_code )
-            break;                                                      /* hors zone */
+            break;
 
         if( ( MasqueLayer & Track->ReturnMaskLayer() ) == 0 )
-            continue;                                                   /* couches differentes */
+            continue;
 
         if( pos == Track->m_Start )
         {
             AddSegmentToDragList( panel, DC, STARTPOINT, Track );
-            g_DragSegmentList->m_Pad_Start = PtPad;
+            g_DragSegmentList.back().m_Pad_Start = PtPad;
         }
 
         if( pos == Track->m_End )
         {
             AddSegmentToDragList( panel, DC, ENDPOINT, Track );
-            g_DragSegmentList->m_Pad_End = PtPad;
+            g_DragSegmentList.back().m_Pad_End = PtPad;
         }
     }
 }
@@ -157,23 +130,17 @@ void Build_1_Pad_SegmentsToDrag( WinEDA_DrawPanel* panel, wxDC* DC, D_PAD* PtPad
 void AddSegmentToDragList( WinEDA_DrawPanel* panel, wxDC* DC,
                            int flag, TRACK* Track )
 /******************************************************************/
-
 /* Add the segment"Track" to the drag list, and erase it from screen
  *  flag = STARTPOINT (if the point to drag is the start point of Track) or ENDPOINT
  */
 {
-    DRAG_SEGM* pt_drag;
-
-    pt_drag = new DRAG_SEGM( Track );
-
-    pt_drag->Pnext = g_DragSegmentList;
-    g_DragSegmentList = pt_drag;
+    DRAG_SEGM wrapper( Track );
 
     if( (flag & STARTPOINT) )
-        pt_drag->m_Flag |= 1;
+        wrapper.m_Flag |= 1;
 
     if( (flag & ENDPOINT) )
-        pt_drag->m_Flag |= 2;
+        wrapper.m_Flag |= 2;
 
     Track->Draw( panel, DC, GR_XOR );
     Track->SetState( EDIT, ON );
@@ -185,66 +152,68 @@ void AddSegmentToDragList( WinEDA_DrawPanel* panel, wxDC* DC,
         Track->m_Flags |= ENDPOINT;
 
     Track->Draw( panel, DC, GR_XOR );
+    g_DragSegmentList.push_back( wrapper );
 }
 
 
 /**********************************************************************************/
 void Collect_TrackSegmentsToDrag( WinEDA_DrawPanel* panel, wxDC* DC,
-                                  wxPoint& point, int MasqueLayer, int net_code )
+                                  wxPoint& aRefPos, int MasqueLayer, int net_code )
 /**********************************************************************************/
 
-/* Routine construisant la liste les segments de piste connectes a la via Via
- *  Les net_codes sont supposes a jour.
+/* Build the list of tracks connected to the ref point
+ *  Net codes must be OK.
+ * @param aRefPos = reference point of connection
  */
 {
-    BOARD* pcb = ( (WinEDA_BasePcbFrame*) (panel->GetParent()) )->GetBoard();
+    BOARD* pcb = ( (WinEDA_BasePcbFrame*)( panel->GetParent() ) )->GetBoard();
 
     TRACK* track = pcb->m_Track->GetStartNetCode( net_code );
+
     for( ; track; track = track->Next() )
     {
-        if( track->GetNet() != net_code )
-            break;                                                      /* hors zone */
+        if( track->GetNet() != net_code )   // Bad net, not connected
+            break;
 
         if( ( MasqueLayer & track->ReturnMaskLayer() ) == 0 )
-            continue;                                                   /* couches differentes */
+            continue;                       // Cannot be connected, not on the same layer
 
         if( track->m_Flags & IS_DRAGGED )
-            continue;                                                   // already in list
+            continue;                       // already put in list
 
-        if( track->m_Start == point )
-        {
-            AddSegmentToDragList( panel, DC, STARTPOINT, track );
-        }
+        int flag = 0;
         
-        if( track->m_End == point )
+        if( (track->m_Start == aRefPos) && ((track->m_Flags & STARTPOINT) == 0) )
+            flag |= STARTPOINT;
+
+        if( track->m_End == aRefPos && ((track->m_Flags & ENDPOINT) == 0)  )
+            flag |= ENDPOINT;
+
+        // Note: vias will be flagged with both STARTPOINT and ENDPOINT
+        // and must not be entered twice.
+        if( flag )
         {
-            AddSegmentToDragList( panel, DC, ENDPOINT, track );
+            AddSegmentToDragList( panel, DC, flag, track );
+            // If a connected via is found at location aRefPos,
+            // collect also tracks connected by this via.
+            if( track->Type() == TYPE_VIA )
+                Collect_TrackSegmentsToDrag( panel, DC, aRefPos,
+                                            track->ReturnMaskLayer(),
+                                            net_code );
         }
     }
 }
 
 
-/*****************************/
-void EraseDragListe()
-/*****************************/
-
-/* Routine de liberation memoire de la liste des structures DRAG_SEGM
- *  remet a zero le pointeur global g_DragSegmentList
+/** function EraseDragList
+ * clear the .m_Flags of all track segments found in g_DragSegmentList
+ * and clear the list.
+ * the memory is not freed and will be reused when creating a new list
  */
+void EraseDragList()
 {
-    DRAG_SEGM* pt_drag;
-    DRAG_SEGM* NextStruct;
-
-    if( g_DragSegmentList == NULL )
-        return;
-
-    pt_drag = g_DragSegmentList;
-    for( ; pt_drag != NULL; pt_drag = NextStruct )
-    {
-        NextStruct = pt_drag->Pnext;
-        pt_drag->m_Segm->m_Flags = 0;
-        delete pt_drag;
-    }
+    for( unsigned ii = 0; ii < g_DragSegmentList.size(); ii++ )
+        g_DragSegmentList[ii].m_Segm->m_Flags = 0;
 
-    g_DragSegmentList = NULL;
+    g_DragSegmentList.clear();
 }

pcbnew/modules.cpp

@@ -112,20 +112,15 @@ void WinEDA_PcbFrame::StartMove_Module( MODULE* module, wxDC* DC )
     if( GetBoard()->IsElementVisible( RATSNEST_VISIBLE ) )
         DrawGeneralRatsnest( DC );
 
-    if( g_DragSegmentList ) /* Should not occur ! */
-    {
-        EraseDragListe();
-    }
+    EraseDragList();
  
     if( g_Drag_Pistes_On )
     {
         Build_Drag_Liste( DrawPanel, DC, module );
         ITEM_PICKER itemWrapper( NULL, UR_CHANGED );
-        for( DRAG_SEGM* pt_drag = g_DragSegmentList;
-             pt_drag != NULL;
-             pt_drag = pt_drag->Pnext )
+        for( unsigned ii = 0; ii < g_DragSegmentList.size(); ii++ )
         {
-            TRACK* segm = pt_drag->m_Segm;
+            TRACK* segm = g_DragSegmentList[ii].m_Segm;
             itemWrapper.m_PickedItem = segm;
             itemWrapper.m_Link = segm->Copy();
             itemWrapper.m_Link->SetState( EDIT, OFF );
@@ -155,7 +150,6 @@ void WinEDA_PcbFrame::StartMove_Module( MODULE* module, wxDC* DC )
  */
 void Abort_MoveOrCopyModule( WinEDA_DrawPanel* Panel, wxDC* DC )
 {
-    DRAG_SEGM*            pt_drag;
     TRACK*                pt_segm;
     MODULE*               module;
     WinEDA_PcbFrame*      pcbframe = (WinEDA_PcbFrame*) Panel->GetParent();
@@ -176,24 +170,23 @@ void Abort_MoveOrCopyModule( WinEDA_DrawPanel* Panel, wxDC* DC )
             if( g_Drag_Pistes_On )
             {
                 /* Erase on screen dragged tracks */
-                pt_drag = g_DragSegmentList;
-                for( ; pt_drag != NULL; pt_drag = pt_drag->Pnext )
+                for( unsigned ii = 0; ii < g_DragSegmentList.size(); ii++ )
                 {
-                    pt_segm = pt_drag->m_Segm;
+                    pt_segm = g_DragSegmentList[ii].m_Segm;
                     pt_segm->Draw( Panel, DC, GR_XOR );
                 }
             }
 
             /* Go to old position for dragged tracks */
-            pt_drag = g_DragSegmentList;
-            for( ; pt_drag != NULL; pt_drag = pt_drag->Pnext )
+            for( unsigned ii = 0; ii < g_DragSegmentList.size(); ii++ )
             {
-                pt_segm = pt_drag->m_Segm; pt_segm->SetState( EDIT, OFF );
-                pt_drag->SetInitialValues();
+                pt_segm = g_DragSegmentList[ii].m_Segm;
+                pt_segm->SetState( EDIT, OFF );
+                g_DragSegmentList[ii].SetInitialValues();
                 pt_segm->Draw( Panel, DC, GR_OR );
             }
 
-            EraseDragListe();
+            EraseDragList();
             module->m_Flags = 0;
         }
 
@@ -466,21 +459,19 @@ void WinEDA_BasePcbFrame::Place_Module( MODULE* module,
     if( DC )
         module->Draw( DrawPanel, DC, GR_OR );
 
-    if( g_DragSegmentList )
+    if( g_DragSegmentList.size() )
     {
         /* Redraw dragged track segments */
-        for( DRAG_SEGM* pt_drag = g_DragSegmentList;
-             pt_drag != NULL;
-             pt_drag = pt_drag->Pnext )
+        for( unsigned ii = 0; ii < g_DragSegmentList.size(); ii++ )
         {
-            pt_segm = pt_drag->m_Segm;
+            pt_segm = g_DragSegmentList[ii].m_Segm;
             pt_segm->SetState( EDIT, OFF );
             if( DC )
                 pt_segm->Draw( DrawPanel, DC, GR_OR );
         }
 
         // Delete drag list
-        EraseDragListe();
+        EraseDragList();
     }
 
     g_Drag_Pistes_On = FALSE;

pcbnew/move-drag_pads.cpp

@@ -39,18 +39,17 @@ static void Exit_Move_Pad( WinEDA_DrawPanel* Panel, wxDC* DC )
     /* Pad move in progress: the restore origin. */
     if( g_Drag_Pistes_On )
     {
-        DRAG_SEGM* pt_drag = g_DragSegmentList;
-        for( ; pt_drag != NULL; pt_drag = pt_drag->Pnext )
+        for( unsigned ii = 0; ii < g_DragSegmentList.size(); ii++ )
         {
-            TRACK* Track = pt_drag->m_Segm;
+            TRACK* Track = g_DragSegmentList[ii].m_Segm;
             Track->Draw( Panel, DC, GR_XOR );
             Track->SetState( EDIT, OFF );
-            pt_drag->SetInitialValues();
+            g_DragSegmentList[ii].SetInitialValues();
             Track->Draw( Panel, DC, GR_OR );
         }
     }
 
-    EraseDragListe();
+    EraseDragList();
     s_CurrentSelectedPad = NULL;
     g_Drag_Pistes_On     = FALSE;
 }
@@ -61,7 +60,6 @@ static void Exit_Move_Pad( WinEDA_DrawPanel* Panel, wxDC* DC )
 static void Show_Pad_Move( WinEDA_DrawPanel* panel, wxDC* DC, bool erase )
 {
     TRACK*       Track;
-    DRAG_SEGM*   pt_drag;
     BASE_SCREEN* screen = panel->GetScreen();
     D_PAD*       pad    = s_CurrentSelectedPad;
 
@@ -74,17 +72,16 @@ static void Show_Pad_Move( WinEDA_DrawPanel* panel, wxDC* DC, bool erase )
     if( !g_Drag_Pistes_On )
         return;
 
-    pt_drag = g_DragSegmentList;
-    for( ; pt_drag != NULL; pt_drag = pt_drag->Pnext )
+    for( unsigned ii = 0; ii < g_DragSegmentList.size(); ii++ )
     {
-        Track = pt_drag->m_Segm;
+        Track = g_DragSegmentList[ii].m_Segm;
         if( erase )
             Track->Draw( panel, DC, GR_XOR );
-        if( pt_drag->m_Pad_Start )
+        if( g_DragSegmentList[ii].m_Pad_Start )
         {
             Track->m_Start = pad->m_Pos;
         }
-        if( pt_drag->m_Pad_End )
+        if( g_DragSegmentList[ii].m_Pad_End )
         {
             Track->m_End = pad->m_Pos;
         }
@@ -288,7 +285,7 @@ void WinEDA_BasePcbFrame::StartMovePad( D_PAD* Pad, wxDC* DC )
     if( g_Drag_Pistes_On )
         Build_1_Pad_SegmentsToDrag( DrawPanel, DC, Pad );
     else
-        EraseDragListe();
+        EraseDragList();
 }
 
 
@@ -308,18 +305,16 @@ void WinEDA_BasePcbFrame::PlacePad( D_PAD* Pad, wxDC* DC )
     PICKED_ITEMS_LIST pickList;
 
     /* Save dragged track segments in undo list */
-    for( DRAG_SEGM* pt_drag = g_DragSegmentList;
-         pt_drag;
-         pt_drag = pt_drag->Pnext )
+    for( unsigned ii = 0; ii < g_DragSegmentList.size(); ii++ )
     {
-        Track = pt_drag->m_Segm;
+        Track = g_DragSegmentList[ii].m_Segm;
 
         // Set the old state
         wxPoint t_start = Track->m_Start;
         wxPoint t_end   = Track->m_End;
-        if( pt_drag->m_Pad_Start )
+        if( g_DragSegmentList[ii].m_Pad_Start )
             Track->m_Start = Pad_OldPos;
-        if( pt_drag->m_Pad_End )
+        if( g_DragSegmentList[ii].m_Pad_End )
             Track->m_End = Pad_OldPos;
 
         picker.m_PickedItem = Track;
@@ -330,32 +325,27 @@ void WinEDA_BasePcbFrame::PlacePad( D_PAD* Pad, wxDC* DC )
     wxPoint pad_curr_position = Pad->m_Pos;
 
     Pad->m_Pos = Pad_OldPos;
-    if( g_DragSegmentList == NULL )
+    if( g_DragSegmentList.size() == 0 )
         SaveCopyInUndoList( Module, UR_CHANGED );
     else
     {
         picker.m_PickedItem = Module;
         pickList.PushItem( picker );
-    }
-
-
-    if( g_DragSegmentList )
         SaveCopyInUndoList( pickList, UR_CHANGED );
+    }
 
     Pad->m_Pos = pad_curr_position;
     Pad->Draw( DrawPanel, DC, GR_XOR );
 
     /* Redraw dragged track segments */
-    for( DRAG_SEGM* pt_drag = g_DragSegmentList;
-         pt_drag;
-         pt_drag = pt_drag->Pnext )
+    for( unsigned ii = 0; ii < g_DragSegmentList.size(); ii++ )
     {
-        Track = pt_drag->m_Segm;
+        Track = g_DragSegmentList[ii].m_Segm;
 
         // Set the new state
-        if( pt_drag->m_Pad_Start )
+        if( g_DragSegmentList[ii].m_Pad_Start )
             Track->m_Start = Pad->m_Pos;
-        if( pt_drag->m_Pad_End )
+        if( g_DragSegmentList[ii].m_Pad_End )
             Track->m_End = Pad->m_Pos;
 
         Track->SetState( EDIT, OFF );
@@ -380,7 +370,7 @@ void WinEDA_BasePcbFrame::PlacePad( D_PAD* Pad, wxDC* DC )
     Module->Set_Rectangle_Encadrement();
     Module->m_LastEdit_Time = time( NULL );
 
-    EraseDragListe();
+    EraseDragList();
 
     OnModify();
     DrawPanel->ManageCurseur = NULL;

pcbnew/move_or_drag_track.cpp

@@ -61,7 +61,7 @@ static void Abort_MoveTrack( WinEDA_DrawPanel* Panel, wxDC* DC )
         Panel->ManageCurseur( Panel, DC, true );
 
     Panel->GetScreen()->m_Curseur = oldpos;
-    g_HighLight_Status = FALSE;
+    g_HighLight_Status = false;
     ( (WinEDA_PcbFrame*) Panel->GetParent() )->GetBoard()->DrawHighLight(
         Panel,
         DC,
@@ -110,11 +110,10 @@ static void Abort_MoveTrack( WinEDA_DrawPanel* Panel, wxDC* DC )
     ( (WinEDA_PcbFrame*) Panel->GetParent() )->SetCurItem( NULL );
 
     /* Undo move and redraw trace segments. */
-    DRAG_SEGM* pt_drag = g_DragSegmentList;
-    for( ; pt_drag != NULL; pt_drag = pt_drag->Pnext )
+    for( unsigned jj=0 ; jj < g_DragSegmentList.size(); jj++ )
     {
-        TRACK* Track = pt_drag->m_Segm;
-        pt_drag->SetInitialValues();
+        TRACK* Track = g_DragSegmentList[jj].m_Segm;
+        g_DragSegmentList[jj].SetInitialValues();
         Track->SetState( EDIT, OFF );
         Track->m_Flags = 0;
         Track->Draw( Panel, DC, GR_OR );
@@ -127,11 +126,9 @@ static void Abort_MoveTrack( WinEDA_DrawPanel* Panel, wxDC* DC )
     g_HighLight_Status   = Old_HighLigt_Status;
     if( g_HighLight_Status )
         ( (WinEDA_PcbFrame*) Panel->GetParent() )->GetBoard()->DrawHighLight(
-            Panel,
-            DC,
-            g_HighLight_NetCode );
+            Panel, DC, g_HighLight_NetCode );
 
-    EraseDragListe();
+    EraseDragList();
 }
 
 
@@ -145,7 +142,7 @@ static void Show_MoveNode( WinEDA_DrawPanel* panel, wxDC* DC, bool erase )
     int          track_fill_copy = DisplayOpt.DisplayPcbTrackFill;
     int          draw_mode = GR_XOR | GR_SURBRILL;
 
-    DisplayOpt.DisplayPcbTrackFill = FALSE;
+    DisplayOpt.DisplayPcbTrackFill = false;
 
     erase = true;
 
@@ -175,10 +172,9 @@ static void Show_MoveNode( WinEDA_DrawPanel* panel, wxDC* DC, bool erase )
     /* Redraw the current moved track segments */
     Trace_Une_Piste( panel, DC, NewTrack, NbPtNewTrack, draw_mode );
 
-    DRAG_SEGM* pt_drag = g_DragSegmentList;
-    for( ; pt_drag != NULL; pt_drag = pt_drag->Pnext )
+    for( unsigned ii = 0; ii < g_DragSegmentList.size(); ii++ )
     {
-        Track = pt_drag->m_Segm;
+        Track = g_DragSegmentList[ii].m_Segm;
         if( erase )
             Track->Draw( panel, DC, draw_mode );
 
@@ -250,32 +246,35 @@ static void Show_Drag_Track_Segment_With_Cte_Slope( WinEDA_DrawPanel* panel,
     BASE_SCREEN* screen = panel->GetScreen();
     bool         update = true;
     TRACK*       Track;
-    DRAG_SEGM*   TrackSegWrapper = g_DragSegmentList;
     TRACK*       tSegmentToStart = NULL, * tSegmentToEnd = NULL;
 
-    if( TrackSegWrapper == NULL )
+    if( g_DragSegmentList.size() == 0 )
         return;
 
-    Track = TrackSegWrapper->m_Segm;
+    /* get the segments :
+     * from last to first in list are:
+     * the segment to move
+     * the segment connected to its end point (if exists)
+     * the segment connected to its start point (if exists)
+     */
+    int ii = g_DragSegmentList.size() - 1;
+    Track = g_DragSegmentList[ii].m_Segm;
     if( Track == NULL )
         return;
-
-    TrackSegWrapper = TrackSegWrapper->Pnext;
-    if( TrackSegWrapper )
+    ii--;
+    if( ii >= 0)
     {
          if( s_EndSegmentPresent )
         {
-            tSegmentToEnd   = TrackSegWrapper->m_Segm;  // Get the segment
-                                                        // connected to the end
-                                                        // point
-            TrackSegWrapper = TrackSegWrapper->Pnext;
+            // Get the segment connected to the end point
+            tSegmentToEnd   = g_DragSegmentList[ii].m_Segm;
+            ii--;
         }
         if( s_StartSegmentPresent )
         {
-            if( TrackSegWrapper )
-                tSegmentToStart = TrackSegWrapper->m_Segm;  // Get the segment
-                                                            // connected to the
-                                                            // start point
+            // Get the segment connected to the start point
+            if( ii >= 0 )
+                tSegmentToStart = g_DragSegmentList[ii].m_Segm; 
         }
     }
 
@@ -461,36 +460,42 @@ static void Show_Drag_Track_Segment_With_Cte_Slope( WinEDA_DrawPanel* panel,
 
 /* Init variables (slope, Y intersect point, flags) for
  * Show_Drag_Track_Segment_With_Cte_Slope()
- *  return true if Ok, FALSE if dragging is not possible
+ *  return true if Ok, false if dragging is not possible
  *  (2 colinear segments)
  */
 bool InitialiseDragParameters()
 {
     double     tx1, tx2, ty1, ty2; // temporary storage of points
     TRACK*     Track;
-    DRAG_SEGM* TrackSegWrapper = g_DragSegmentList;
     TRACK*     tSegmentToStart = NULL, * tSegmentToEnd = NULL;
 
-    if( TrackSegWrapper == NULL )
-        return FALSE;
-    Track = TrackSegWrapper->m_Segm;
-    if( Track == NULL )
-        return FALSE;
+    if( g_DragSegmentList.size() == 0 )
+        return false;
 
-    TrackSegWrapper = TrackSegWrapper->Pnext;
-    if( TrackSegWrapper )
+    /* get the segments :
+     * from last to first in list are:
+     * the segment to move
+     * the segment connected to its end point (if exists)
+     * the segment connected to its start point (if exists)
+     */
+    int ii = g_DragSegmentList.size() - 1;
+    Track = g_DragSegmentList[ii].m_Segm;
+    if( Track == NULL )
+        return false;
+    ii--;
+    if( ii >= 0)
     {
         if( s_EndSegmentPresent )
         {
-            tSegmentToEnd   = TrackSegWrapper->m_Segm;  // Get the segment
+            tSegmentToEnd   = g_DragSegmentList[ii].m_Segm;  // Get the segment
                                                         // connected to the end
                                                         // point
-            TrackSegWrapper = TrackSegWrapper->Pnext;
+            ii--;
         }
         if( s_StartSegmentPresent )
         {
-            if( TrackSegWrapper )
-                tSegmentToStart = TrackSegWrapper->m_Segm;  // Get the segment
+            if( ii  >= 0 )
+                tSegmentToStart = g_DragSegmentList[ii].m_Segm;  // Get the segment
                                                             // connected to the
                                                             // start point
         }
@@ -644,7 +649,7 @@ void WinEDA_PcbFrame::Start_MoveOneNodeOrSegment( TRACK* track,
 
     NewTrack     = NULL;
     NbPtNewTrack = 0;
-    EraseDragListe();
+    EraseDragList();
 
     /* Change highlighted net: the new one will be highlighted */
     Old_HighLigt_Status   = g_HighLight_Status;
@@ -653,7 +658,7 @@ void WinEDA_PcbFrame::Start_MoveOneNodeOrSegment( TRACK* track,
         High_Light( DC );
     PosInit = GetScreen()->m_Curseur;
 
-    if( track->Type() == TYPE_VIA )
+    if( track->Type() == TYPE_VIA )     // For a via: always drag it
     {
         track->m_Flags = IS_DRAGGED | STARTPOINT | ENDPOINT;
         if( command != ID_POPUP_PCB_MOVE_TRACK_SEGMENT )
@@ -673,12 +678,12 @@ void WinEDA_PcbFrame::Start_MoveOneNodeOrSegment( TRACK* track,
 
         switch( command )
         {
-        case ID_POPUP_PCB_MOVE_TRACK_SEGMENT:
+        case ID_POPUP_PCB_MOVE_TRACK_SEGMENT:   // Move segment
             track->m_Flags |= IS_DRAGGED | ENDPOINT | STARTPOINT;
             AddSegmentToDragList( DrawPanel, DC, track->m_Flags, track );
             break;
 
-        case ID_POPUP_PCB_DRAG_TRACK_SEGMENT:
+        case ID_POPUP_PCB_DRAG_TRACK_SEGMENT:   // drag a segment
             pos = track->m_Start;
             Collect_TrackSegmentsToDrag( DrawPanel, DC, pos,
                                          track->ReturnMaskLayer(),
@@ -690,7 +695,7 @@ void WinEDA_PcbFrame::Start_MoveOneNodeOrSegment( TRACK* track,
                                          track->GetNet() );
             break;
 
-        case ID_POPUP_PCB_MOVE_TRACK_NODE:
+        case ID_POPUP_PCB_MOVE_TRACK_NODE:  // Drag via or move node
             pos = (diag & STARTPOINT) ? track->m_Start : track->m_End;
             Collect_TrackSegmentsToDrag( DrawPanel, DC, pos,
                                          track->ReturnMaskLayer(),
@@ -706,10 +711,9 @@ void WinEDA_PcbFrame::Start_MoveOneNodeOrSegment( TRACK* track,
     ITEM_PICKER picker( track, UR_CHANGED );
     picker.m_Link = track->Copy();
     s_ItemsListPicker.PushItem( picker );
-    DRAG_SEGM*  pt_drag = g_DragSegmentList;
-    for( ; pt_drag != NULL; pt_drag = pt_drag->Pnext )
+    for( unsigned ii = 0; ii < g_DragSegmentList.size(); ii++ )
     {
-        TRACK* draggedtrack = pt_drag->m_Segm;
+        TRACK* draggedtrack = g_DragSegmentList[ii].m_Segm;
         picker.m_PickedItem = draggedtrack;
         picker.m_Link = draggedtrack->Copy();
         s_ItemsListPicker.PushItem( picker );
@@ -824,7 +828,7 @@ void WinEDA_PcbFrame::Start_DragTrackSegmentAndKeepSlope( TRACK* track,
 {
     TRACK* TrackToStartPoint = NULL;
     TRACK* TrackToEndPoint   = NULL;
-    bool   error = FALSE;
+    bool   error = false;
 
     if( !track )
         return;
@@ -835,14 +839,10 @@ void WinEDA_PcbFrame::Start_DragTrackSegmentAndKeepSlope( TRACK* track,
     // Broken functions: see comments
     while( MergeCollinearTracks( track, DC, START ) )
     {
-    }
-
-    ;
+    };
     while( MergeCollinearTracks( track, DC, END ) )
     {
-    }
-
-    ;
+    };
 #endif
 
     s_StartSegmentPresent = s_EndSegmentPresent = true;
@@ -885,10 +885,10 @@ void WinEDA_PcbFrame::Start_DragTrackSegmentAndKeepSlope( TRACK* track,
     }
 
     if( !TrackToStartPoint || ( TrackToStartPoint->Type() != TYPE_TRACK ) )
-        s_StartSegmentPresent = FALSE;
+        s_StartSegmentPresent = false;
 
     if( !TrackToEndPoint || ( TrackToEndPoint->Type() != TYPE_TRACK ) )
-        s_EndSegmentPresent = FALSE;
+        s_EndSegmentPresent = false;
 
     /* Change high light net: the new one will be highlighted */
     Old_HighLigt_Status   = g_HighLight_Status;
@@ -896,7 +896,7 @@ void WinEDA_PcbFrame::Start_DragTrackSegmentAndKeepSlope( TRACK* track,
     if( g_HighLight_Status )
         High_Light( DC );
 
-    EraseDragListe();
+    EraseDragList();
 
     NewTrack = NULL;
     NbPtNewTrack   = 0;
@@ -933,11 +933,10 @@ void WinEDA_PcbFrame::Start_DragTrackSegmentAndKeepSlope( TRACK* track,
     GetBoard()->DrawHighLight( DrawPanel, DC, g_HighLight_NetCode );
 
     // Prepare the Undo command
-    DRAG_SEGM*  pt_drag = g_DragSegmentList;
     ITEM_PICKER picker( NULL, UR_CHANGED );
-    for( ; pt_drag != NULL; pt_drag = pt_drag->Pnext )
+    for( unsigned ii = 0; ii < g_DragSegmentList.size(); ii++ )
     {
-        TRACK* draggedtrack = pt_drag->m_Segm;
+        TRACK* draggedtrack = g_DragSegmentList[ii].m_Segm;
         picker.m_PickedItem = draggedtrack;
         picker.m_Link = draggedtrack->Copy();
         s_ItemsListPicker.PushItem( picker );
@@ -961,10 +960,9 @@ void WinEDA_PcbFrame::Start_DragTrackSegmentAndKeepSlope( TRACK* track,
 bool WinEDA_PcbFrame::PlaceDraggedOrMovedTrackSegment( TRACK* Track, wxDC* DC )
 {
     int        errdrc;
-    DRAG_SEGM* pt_drag;
 
     if( Track == NULL )
-        return FALSE;
+        return false;
 
     int current_net_code = Track->GetNet();
 
@@ -973,14 +971,13 @@ bool WinEDA_PcbFrame::PlaceDraggedOrMovedTrackSegment( TRACK* Track, wxDC* DC )
     {
         errdrc = m_drc->Drc( Track, GetBoard()->m_Track );
         if( errdrc == BAD_DRC )
-            return FALSE;
+            return false;
         /* Redraw the dragged segments */
-        pt_drag = g_DragSegmentList;
-        for( ; pt_drag != NULL; pt_drag = pt_drag->Pnext )
+        for( unsigned ii = 0; ii < g_DragSegmentList.size(); ii++ )
         {
-            errdrc = m_drc->Drc( pt_drag->m_Segm, GetBoard()->m_Track );
+            errdrc = m_drc->Drc( g_DragSegmentList[ii].m_Segm, GetBoard()->m_Track );
             if( errdrc == BAD_DRC )
-                return FALSE;
+                return false;
         }
     }
 
@@ -992,10 +989,9 @@ bool WinEDA_PcbFrame::PlaceDraggedOrMovedTrackSegment( TRACK* Track, wxDC* DC )
     Track->Draw( DrawPanel, DC, draw_mode );
 
     /* Draw dragged tracks */
-    pt_drag = g_DragSegmentList;
-    for( ; pt_drag; pt_drag = pt_drag->Pnext )
+    for( unsigned ii = 0; ii < g_DragSegmentList.size(); ii++ )
     {
-        Track = pt_drag->m_Segm;
+        Track = g_DragSegmentList[ii].m_Segm;
         Track->SetState( EDIT, OFF );
         Track->m_Flags = 0;
         Track->Draw( DrawPanel, DC, draw_mode );
@@ -1010,7 +1006,7 @@ bool WinEDA_PcbFrame::PlaceDraggedOrMovedTrackSegment( TRACK* Track, wxDC* DC )
             GetBoard(), Track->m_End, masque_layer );
     }
 
-    EraseDragListe();
+    EraseDragList();
 
     SaveCopyInUndoList( s_ItemsListPicker, UR_UNSPECIFIED );
     s_ItemsListPicker.ClearItemsList(); // s_ItemsListPicker is no more owner