Unify Eeschema drag item commands into a single event handler.

* Create command event handler for draggining all schematic items.
* Remove redundant delete item command handler code.
* Remove unused close current tool command ID from process special
  functions event handler.

eeschema/eeschema_id.h

@@ -94,7 +94,6 @@ enum id_eeschema_frm
     ID_POPUP_SCH_DELETE_CONNECTION,
     ID_POPUP_SCH_DELETE_NODE,
     ID_POPUP_SCH_DELETE_CMP,
-    ID_POPUP_SCH_DRAG_ITEM_REQUEST,
     ID_POPUP_SCH_UNUSED_2,
     ID_POPUP_SCH_ENTRY_SELECT_SLASH,
     ID_POPUP_SCH_ENTRY_SELECT_ANTISLASH,
@@ -177,6 +176,7 @@ enum id_eeschema_frm
     ID_SCH_EDIT_COMPONENT_REFERENCE,
     ID_SCH_EDIT_COMPONENT_FOOTPRINT,
     ID_POPUP_SCH_MOVE_ITEM,
+    ID_SCH_DRAG_ITEM,
 
     // Schematic editor commmands.  These are command IDs that are generated by multiple
     // events (menus, toolbar, context menu, etc.) that result in the same event handler.

eeschema/hotkeys.cpp

@@ -174,8 +174,7 @@ static EDA_HOTKEY HkCopyComponentOrText( wxT( "Copy Component or Label" ),
                                          HK_COPY_COMPONENT_OR_LABEL, 'C',
                                          ID_POPUP_SCH_COPY_ITEM );
 
-static EDA_HOTKEY HkDrag( wxT( "Drag Schematic Item" ), HK_DRAG, 'G',
-                          ID_POPUP_SCH_DRAG_ITEM_REQUEST );
+static EDA_HOTKEY HkDrag( wxT( "Drag Schematic Item" ), HK_DRAG, 'G', ID_SCH_DRAG_ITEM );
 static EDA_HOTKEY HkMove2Drag( wxT( "Move Block -> Drag Block" ),
                                HK_MOVEBLOCK_TO_DRAGBLOCK, '\t' );
 static EDA_HOTKEY HkInsert( wxT( "Repeat Last Item" ), HK_REPEAT_LAST, WXK_INSERT );
@@ -507,50 +506,6 @@ void SCH_EDIT_FRAME::OnHotKey( wxDC* aDC, int aHotKey, const wxPoint& aPosition,
         break;
 
     case HK_DRAG:                           // Start drag
-        if( itemInEdit )
-            break;
-
-        if( aItem == NULL )
-        {
-            aItem = LocateAndShowItem( aPosition, SCH_COLLECTOR::DraggableItems,
-                                       hotKey->m_Idcommand );
-
-            if( aItem == NULL )
-                break;
-        }
-
-        if( aItem->GetFlags() == 0 )
-        {
-            switch( aItem->Type() )
-            {
-            // select the correct event for moving an schematic object
-            // and add it to the event queue
-            case SCH_COMPONENT_T:
-            case SCH_GLOBAL_LABEL_T:
-            case SCH_HIERARCHICAL_LABEL_T:
-            case SCH_SHEET_T:
-                cmd.SetId( hotKey->m_IdMenuEvent );
-                wxPostEvent( this, cmd );
-                break;
-
-            case SCH_BUS_ENTRY_T:
-            case SCH_LINE_T:
-            case SCH_JUNCTION_T:
-                if( ((SCH_ITEM*) aItem )->GetLayer() != LAYER_BUS )
-                {
-                    cmd.SetId( hotKey->m_IdMenuEvent );
-                    wxPostEvent( this, cmd );
-                }
-
-                break;
-
-            default:
-                ;
-            }
-        }
-
-        break;
-
     case HK_ROTATE:                         // Rotate schematic item or block.
     case HK_MOVE_COMPONENT_OR_ITEM:         // Start move schematic item.
     case HK_EDIT:                           // Edit schematic item.
@@ -558,7 +513,7 @@ void SCH_EDIT_FRAME::OnHotKey( wxDC* aDC, int aHotKey, const wxPoint& aPosition,
     case HK_EDIT_COMPONENT_FOOTPRINT:       // Edit component footprint field.
     {
         EDA_HOTKEY_CLIENT_DATA data( aPosition );
-        cmd.SetInt( aHotKey );
+        cmd.SetInt( hotKey->m_Idcommand );
         cmd.SetClientObject( &data );
         cmd.SetId( hotKey->m_IdMenuEvent );
         GetEventHandler()->ProcessEvent( cmd );

eeschema/onleftclick.cpp

@@ -179,10 +179,6 @@ void SCH_EDIT_FRAME::OnLeftClick( wxDC* aDC, const wxPoint& aPosition )
 
     case ID_SCHEMATIC_DELETE_ITEM_BUTT:
         DeleteItemAtCrossHair( aDC );
-        OnModify();
-        GetScreen()->SetCurItem( NULL );
-        GetScreen()->TestDanglingEnds();
-        DrawPanel->Refresh( true );
         break;
 
     case ID_WIRE_BUTT:

eeschema/onrightclick.cpp

@@ -280,7 +280,7 @@ void AddMenusForComponent( wxMenu* PopMenu, SCH_COMPONENT* Component )
         msg = AddHotkeyName( msg, s_Schematic_Hokeys_Descr, HK_MOVE_COMPONENT_OR_ITEM );
         AddMenuItem( PopMenu, ID_POPUP_SCH_MOVE_ITEM, msg, KiBitmap( move_xpm ) );
         msg = AddHotkeyName( _( "Drag Component" ), s_Schematic_Hokeys_Descr, HK_DRAG );
-        AddMenuItem( PopMenu, ID_POPUP_SCH_DRAG_ITEM_REQUEST, msg, KiBitmap( move_xpm ) );
+        AddMenuItem( PopMenu, ID_SCH_DRAG_ITEM, msg, KiBitmap( move_xpm ) );
     }
 
     wxMenu* orientmenu = new wxMenu;
@@ -377,7 +377,7 @@ void AddMenusForGLabel( wxMenu* PopMenu, SCH_GLOBALLABEL* GLabel )
         AddMenuItem( PopMenu, ID_POPUP_SCH_MOVE_ITEM, msg, KiBitmap( move_text_xpm ) );
         msg = AddHotkeyName( _( "Drag Global Label" ), s_Schematic_Hokeys_Descr,
                              HK_DRAG );
-        AddMenuItem( PopMenu, ID_POPUP_SCH_DRAG_ITEM_REQUEST, msg, KiBitmap( move_text_xpm ) );
+        AddMenuItem( PopMenu, ID_SCH_DRAG_ITEM, msg, KiBitmap( move_text_xpm ) );
         msg = AddHotkeyName( _( "Copy Global Label" ), s_Schematic_Hokeys_Descr,
                              HK_COPY_COMPONENT_OR_LABEL );
         AddMenuItem( PopMenu, ID_POPUP_SCH_COPY_ITEM, msg, KiBitmap( copy_button_xpm ) );
@@ -413,7 +413,7 @@ void AddMenusForHLabel( wxMenu* PopMenu, SCH_HIERLABEL* HLabel )
                              HK_MOVE_COMPONENT_OR_ITEM );
         AddMenuItem( PopMenu, ID_POPUP_SCH_MOVE_ITEM, msg, KiBitmap( move_text_xpm ) );
         msg = AddHotkeyName( _( "Drag Hierarchical Label" ), s_Schematic_Hokeys_Descr, HK_DRAG );
-        AddMenuItem( PopMenu, ID_POPUP_SCH_DRAG_ITEM_REQUEST, msg, KiBitmap( move_text_xpm ) );
+        AddMenuItem( PopMenu, ID_SCH_DRAG_ITEM, msg, KiBitmap( move_text_xpm ) );
         msg = AddHotkeyName( _( "Copy Hierarchical Label" ), s_Schematic_Hokeys_Descr,
                              HK_COPY_COMPONENT_OR_LABEL );
         AddMenuItem( PopMenu, ID_POPUP_SCH_COPY_ITEM, msg, KiBitmap( copy_button_xpm ) );
@@ -449,7 +449,7 @@ void AddMenusForLabel( wxMenu* PopMenu, SCH_LABEL* Label )
                              HK_MOVE_COMPONENT_OR_ITEM );
         AddMenuItem( PopMenu, ID_POPUP_SCH_MOVE_ITEM, msg, KiBitmap( move_text_xpm ) );
         msg = AddHotkeyName( _( "Drag Label" ), s_Schematic_Hokeys_Descr, HK_DRAG );
-        AddMenuItem( PopMenu, ID_POPUP_SCH_DRAG_ITEM_REQUEST, msg, KiBitmap( move_text_xpm ) );
+        AddMenuItem( PopMenu, ID_SCH_DRAG_ITEM, msg, KiBitmap( move_text_xpm ) );
         msg = AddHotkeyName( _( "Copy Label" ), s_Schematic_Hokeys_Descr,
                              HK_COPY_COMPONENT_OR_LABEL );
         AddMenuItem( PopMenu, ID_POPUP_SCH_COPY_ITEM, msg, KiBitmap( copy_button_xpm ) );
@@ -524,8 +524,7 @@ void SCH_EDIT_FRAME::addJunctionMenuEntries( wxMenu* aMenu, SCH_JUNCTION* aJunct
     if( !aJunction->IsNew() )
     {
         if( m_collectedItems.IsDraggableJunction() )
-            AddMenuItem( aMenu, ID_POPUP_SCH_DRAG_ITEM_REQUEST, _( "Drag Junction" ),
-                         KiBitmap( move_xpm ) );
+            AddMenuItem( aMenu, ID_SCH_DRAG_ITEM, _( "Drag Junction" ), KiBitmap( move_xpm ) );
 
         if( screen->GetWire( aJunction->GetPosition(), EXCLUDE_END_POINTS_T ) )
             AddMenuItem( aMenu, ID_POPUP_SCH_BREAK_WIRE, _( "Break Wire" ),
@@ -556,7 +555,7 @@ void AddMenusForWire( wxMenu* PopMenu, SCH_LINE* Wire, SCH_EDIT_FRAME* frame )
     }
 
     msg = AddHotkeyName( _( "Drag Wire" ), s_Schematic_Hokeys_Descr, HK_DRAG );
-    AddMenuItem( PopMenu, ID_POPUP_SCH_DRAG_ITEM_REQUEST, msg, KiBitmap( move_track_xpm ) );
+    AddMenuItem( PopMenu, ID_SCH_DRAG_ITEM, msg, KiBitmap( move_track_xpm ) );
     PopMenu->AppendSeparator();
     msg = AddHotkeyName( _( "Delete Wire" ), s_Schematic_Hokeys_Descr, HK_DELETE );
     AddMenuItem( PopMenu, ID_POPUP_SCH_DELETE, msg, KiBitmap( delete_xpm ) );
@@ -629,7 +628,7 @@ void AddMenusForHierchicalSheet( wxMenu* PopMenu, SCH_SHEET* Sheet )
         AddMenuItem( PopMenu, ID_POPUP_SCH_MOVE_ITEM, msg, KiBitmap( move_sheet_xpm ) );
 
         msg = AddHotkeyName( _( "Drag Sheet" ), s_Schematic_Hokeys_Descr, HK_DRAG );
-        AddMenuItem( PopMenu, ID_POPUP_SCH_DRAG_ITEM_REQUEST, msg, KiBitmap( move_sheet_xpm ) );
+        AddMenuItem( PopMenu, ID_SCH_DRAG_ITEM, msg, KiBitmap( move_sheet_xpm ) );
     }
 
     if( Sheet->GetFlags() )

eeschema/schedit.cpp

@@ -74,7 +74,6 @@ void SCH_EDIT_FRAME::Process_Special_Functions( wxCommandEvent& event )
     case ID_POPUP_SCH_END_SHEET:
     case ID_POPUP_SCH_RESIZE_SHEET:
     case ID_POPUP_IMPORT_GLABEL:
-    case ID_POPUP_SCH_DRAG_ITEM_REQUEST:
     case ID_POPUP_SCH_INIT_CMP:
     case ID_POPUP_SCH_DISPLAYDOC_CMP:
     case ID_POPUP_SCH_EDIT_CONVERT_CMP:
@@ -155,7 +154,10 @@ void SCH_EDIT_FRAME::Process_Special_Functions( wxCommandEvent& event )
             SetToolID( GetToolId(), DrawPanel->GetCurrentCursor(), wxEmptyString );
         }
         else
+        {
             SetToolID( ID_NO_TOOL_SELECTED, DrawPanel->GetDefaultCursor(), wxEmptyString );
+        }
+
         break;
 
     case ID_POPUP_END_LINE:
@@ -242,23 +244,6 @@ void SCH_EDIT_FRAME::Process_Special_Functions( wxCommandEvent& event )
         }
         break;
 
-    case ID_POPUP_SCH_DRAG_ITEM_REQUEST:
-        DrawPanel->MoveCursorToCrossHair();
-
-        // The easiest way to handle a drag component or sheet command
-        // is to simulate a block drag command
-        if( screen->m_BlockLocate.m_State == STATE_NO_BLOCK )
-        {
-            if( !HandleBlockBegin( &dc, BLOCK_DRAG, screen->GetCrossHairPosition() ) )
-                break;
-
-            // Give a non null size to the search block:
-            screen->m_BlockLocate.Inflate( 1 );
-            HandleBlockEnd( &dc );
-        }
-
-        break;
-
     case ID_POPUP_SCH_INIT_CMP:
         DrawPanel->MoveCursorToCrossHair();
         break;
@@ -305,10 +290,6 @@ void SCH_EDIT_FRAME::Process_Special_Functions( wxCommandEvent& event )
         DisplayCurrentSheet();
         break;
 
-    case ID_POPUP_CLOSE_CURRENT_TOOL:
-        SetToolID( ID_NO_TOOL_SELECTED, DrawPanel->GetDefaultCursor(), wxEmptyString );
-        break;
-
     case wxID_COPY:         // really this is a Save block for paste
         HandleBlockEndByPopUp( BLOCK_SAVE, &dc );
         break;
@@ -388,7 +369,8 @@ void SCH_EDIT_FRAME::Process_Special_Functions( wxCommandEvent& event )
         break;
 
     default:        // Log error:
-        DisplayError( this, wxT( "SCH_EDIT_FRAME::Process_Special_Functions error" ) );
+        wxFAIL_MSG( wxString::Format( wxT( "Cannot process command event ID %d" ),
+                                      event.GetId() ) );
         break;
     }
 
@@ -886,3 +868,67 @@ void SCH_EDIT_FRAME::OnEditItem( wxCommandEvent& aEvent )
     if( item->GetFlags() == 0 )
         screen->SetCurItem( NULL );
 }
+
+
+void SCH_EDIT_FRAME::OnDragItem( wxCommandEvent& aEvent )
+{
+    SCH_SCREEN* screen = GetScreen();
+    SCH_ITEM* item = screen->GetCurItem();
+
+    INSTALL_UNBUFFERED_DC( dc, DrawPanel );
+
+    if( item == NULL )
+    {
+        // If we didn't get here by a hot key, then something has gone wrong.
+        if( aEvent.GetInt() == 0 )
+            return;
+
+        EDA_HOTKEY_CLIENT_DATA* data = (EDA_HOTKEY_CLIENT_DATA*) aEvent.GetClientObject();
+
+        wxCHECK_RET( data != NULL, wxT( "Invalid hot key client object." ) );
+
+        item = LocateAndShowItem( data->GetPosition(), SCH_COLLECTOR::DraggableItems,
+                                  aEvent.GetInt() );
+
+        // Exit if no item found at the current location or the item is already being edited.
+        if( (item == NULL) || (item->GetFlags() != 0) )
+            return;
+    }
+
+    switch( item->Type() )
+    {
+    case SCH_BUS_ENTRY_T:
+    case SCH_LINE_T:
+    case SCH_JUNCTION_T:
+        if( item->GetLayer() == LAYER_BUS )
+            break;
+
+        // Fall thru if item is not on bus layer.
+    case SCH_COMPONENT_T:
+    case SCH_GLOBAL_LABEL_T:
+    case SCH_HIERARCHICAL_LABEL_T:
+    case SCH_SHEET_T:
+        DrawPanel->MoveCursorToCrossHair();
+
+        // The easiest way to handle a drag component or sheet command
+        // is to simulate a block drag command
+        if( screen->m_BlockLocate.m_State == STATE_NO_BLOCK )
+        {
+            if( !HandleBlockBegin( &dc, BLOCK_DRAG, screen->GetCrossHairPosition() ) )
+                break;
+
+            // Give a non null size to the search block:
+            screen->m_BlockLocate.Inflate( 1 );
+            HandleBlockEnd( &dc );
+        }
+
+        break;
+
+    default:
+        wxFAIL_MSG( wxString::Format( wxT( "Cannot drag schematic item type %s." ),
+                                      GetChars( item->GetClass() ) ) );
+    }
+
+    // Since the drag is actually a block command, clear the current item.
+    screen->SetCurItem( NULL );
+}

eeschema/schframe.cpp

@@ -135,6 +135,7 @@ BEGIN_EVENT_TABLE( SCH_EDIT_FRAME, EDA_DRAW_FRAME )
 
     EVT_MENU( ID_CANCEL_CURRENT_COMMAND, SCH_EDIT_FRAME::OnCancelCurrentCommand )
     EVT_MENU( ID_SCH_ROTATE_ITEM, SCH_EDIT_FRAME::OnRotate )
+    EVT_MENU( ID_SCH_DRAG_ITEM, SCH_EDIT_FRAME::OnDragItem )
     EVT_MENU_RANGE( ID_POPUP_START_RANGE, ID_POPUP_END_RANGE,
                     SCH_EDIT_FRAME::Process_Special_Functions )
     EVT_MENU_RANGE( ID_SCH_EDIT_ITEM, ID_SCH_EDIT_COMPONENT_FOOTPRINT,

include/wxEeschemaStruct.h

@@ -635,6 +635,12 @@ private:
      */
     void OnEditItem( wxCommandEvent& aEvent );
 
+    /**
+     * Function OnDragItem
+     * handles the #ID_SCH_DRAG_ITEM event used to drag schematic itams.
+     */
+    void OnDragItem( wxCommandEvent& aEvent );
+
     void OnExit( wxCommandEvent& event );
     void OnAnnotate( wxCommandEvent& event );
     void OnErc( wxCommandEvent& event );