1 files changed, 126 insertions, 0 deletions
diff --git a/pcbnew/router/pns_dragger.h b/pcbnew/router/pns_dragger.h
new file mode 100644
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+++ b/pcbnew/router/pns_dragger.h
@@ -0,0 +1,126 @@
+/*
+ * KiRouter - a push-and-(sometimes-)shove PCB router
+ *
+ * Copyright (C) 2013-2014 CERN
+ * Author: Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __PNS_DRAGGER_H
+#define __PNS_DRAGGER_H
+
+#include <math/vector2d.h>
+
+#include "pns_node.h"
+#include "pns_via.h"
+#include "pns_line.h"
+#include "pns_algo_base.h"
+#include "pns_itemset.h"
+
+class PNS_ROUTER;
+class PNS_SHOVE;
+class PNS_OPTIMIZER;
+class PNS_ROUTER_BASE;
+
+/**
+ * Class PNS_DRAGGER
+ *
+ * Via, segment and corner dragging algorithm.
+ */
+class PNS_DRAGGER : public PNS_ALGO_BASE
+{
+public:
+     PNS_DRAGGER( PNS_ROUTER* aRouter );
+    ~PNS_DRAGGER();
+
+    /**
+     * Function SetWorld()
+     *
+     * Sets the board to work on.
+     */
+    void SetWorld( PNS_NODE* aWorld );
+
+    /**
+     * Function Start()
+     *
+     * Starts routing a single track at point aP, taking item aStartItem as anchor
+     * (unless NULL). Returns true if a dragging operation has started.
+     */
+    bool Start( const VECTOR2I& aP, PNS_ITEM* aStartItem );
+
+    /**
+     * Function Drag()
+     *
+     * Drags the current segment/corner/via to the point aP.
+     * @return true, if dragging finished with success.
+     */
+    bool Drag( const VECTOR2I& aP );
+
+    /**
+     * Function FixRoute()
+     *
+     * Checks if the result of current dragging operation is correct
+     * and eventually commits it to the world.
+     * @return true, if dragging finished with success.
+     */
+    bool FixRoute();
+
+    /**
+     * Function CurrentNode()
+     *
+     * Returns the most recent world state, including all
+     * items changed due to dragging operation.
+     */
+    PNS_NODE* CurrentNode() const;
+
+    /**
+     * Function Traces()
+     *
+     * Returns the set of dragged items.
+     */
+    const PNS_ITEMSET Traces();
+
+    /// @copydoc PNS_ALGO_BASE::Logger()
+    virtual PNS_LOGGER* Logger();
+
+private:
+    enum DragMode {
+        CORNER = 0,
+        SEGMENT,
+        VIA
+    };
+
+    bool dragMarkObstacles( const VECTOR2I& aP );
+    bool dragShove(const VECTOR2I& aP );
+    bool startDragSegment( const VECTOR2D& aP, PNS_SEGMENT* aSeg );
+    bool startDragVia( const VECTOR2D& aP, PNS_VIA* aVia );
+    void dumbDragVia( PNS_VIA* aVia, PNS_NODE* aNode, const VECTOR2I& aP );
+
+    PNS_NODE*   m_world;
+    PNS_NODE*   m_lastNode;
+    DragMode    m_mode;
+    PNS_LINE    m_draggedLine;
+    PNS_VIA*    m_draggedVia;
+    PNS_LINE    m_lastValidDraggedLine;
+    PNS_SHOVE*  m_shove;
+    int         m_draggedSegmentIndex;
+    bool        m_dragStatus;
+    PNS_MODE    m_currentMode;
+    PNS_ITEMSET m_origViaConnections;
+    PNS_VIA*    m_initialVia;
+    PNS_ITEMSET m_draggedItems;
+};
+
+#endif