Unroll from PICKER_TOOL so we can handle amplitude/spacing events.

Also fixes a bug where we didn't clear the router on an <ESC>.

pcbnew/generators/pcb_generator_meanders.cpp

@@ -33,6 +33,7 @@
 #include <kiplatform/ui.h>
 #include <dialogs/dialog_unit_entry.h>
 #include <collectors.h>
+#include <scoped_set_reset.h>
 
 #include <board_design_settings.h>
 #include <drc/drc_engine.h>
@@ -1160,6 +1161,9 @@ const wxString PCB_GENERATOR_MEANDERS::DISPLAY_NAME = _HKI( "Meanders" );
 const wxString PCB_GENERATOR_MEANDERS::GENERATOR_TYPE = wxS( "meanders" );
 
 
+using SCOPED_DRAW_MODE = SCOPED_SET_RESET<DRAWING_TOOL::MODE>;
+
+
 #define HITTEST_THRESHOLD_PIXELS 5
 
 
@@ -1181,6 +1185,7 @@ int DRAWING_TOOL::PlaceMeander( const TOOL_EVENT& aEvent )
     GENERAL_COLLECTORS_GUIDE guide = m_frame->GetCollectorsGuide();
     GENERATOR_TOOL*          generatorTool = m_toolMgr->GetTool<GENERATOR_TOOL>();
     PNS::ROUTER*             router = generatorTool->Router();
+    SCOPED_DRAW_MODE         scopedDrawMode( m_mode, MODE::MEANDER );
 
     m_pickerItem = nullptr;
     m_meander = nullptr;

pcbnew/tools/drawing_tool.cpp

@@ -231,6 +231,12 @@ bool DRAWING_TOOL::Init()
                 return m_mode == MODE::VIA;
             };
 
+    auto meanderToolActive =
+            [this]( const SELECTION& aSel )
+            {
+                return m_mode == MODE::MEANDER;
+            };
+
     CONDITIONAL_MENU& ctxMenu = m_menu.GetMenu();
 
     // cancel current tool goes in main context menu at the top if present
@@ -244,8 +250,12 @@ bool DRAWING_TOOL::Init()
     ctxMenu.AddItem( PCB_ACTIONS::closeOutline,        canCloseOutline, 200 );
     ctxMenu.AddItem( PCB_ACTIONS::deleteLastPoint,     canUndoPoint, 200 );
     ctxMenu.AddItem( PCB_ACTIONS::arcPosture,          arcToolActive, 200 );
+    ctxMenu.AddItem( PCB_ACTIONS::spacingIncrease,     meanderToolActive, 200 );
+    ctxMenu.AddItem( PCB_ACTIONS::spacingDecrease,     meanderToolActive, 200 );
+    ctxMenu.AddItem( PCB_ACTIONS::amplIncrease,        meanderToolActive, 200 );
+    ctxMenu.AddItem( PCB_ACTIONS::amplDecrease,        meanderToolActive, 200 );
 
-    ctxMenu.AddCheckItem( PCB_ACTIONS::toggleHV45Mode, SELECTION_CONDITIONS::ShowAlways, 250 );
+    ctxMenu.AddCheckItem( PCB_ACTIONS::toggleHV45Mode, !meanderToolActive, 250 );
     ctxMenu.AddSeparator( 500 );
 
     std::shared_ptr<VIA_SIZE_MENU> viaSizeMenu = std::make_shared<VIA_SIZE_MENU>();

pcbnew/tools/drawing_tool.h

@@ -79,7 +79,8 @@ public:
         KEEPOUT,
         ZONE,
         GRAPHIC_POLYGON,
-        VIA
+        VIA,
+        MEANDER
     };
 
     /**