/home/master/UCL/VisualizationLibrary/src/vlGraphics/EdgeRenderer.hpp

Go to the documentation of this file.

/**************************************************************************************/
/*                                                                                    */
/*  Visualization Library                                                             */
/*  http://visualizationlibrary.org                                                   */
/*                                                                                    */
/*  Copyright (c) 2005-2010, Michele Bosi                                             */
/*  All rights reserved.                                                              */
/*                                                                                    */
/*  Redistribution and use in source and binary forms, with or without modification,  */
/*  are permitted provided that the following conditions are met:                     */
/*                                                                                    */
/*  - Redistributions of source code must retain the above copyright notice, this     */
/*  list of conditions and the following disclaimer.                                  */
/*                                                                                    */
/*  - Redistributions in binary form must reproduce the above copyright notice, this  */
/*  list of conditions and the following disclaimer in the documentation and/or       */
/*  other materials provided with the distribution.                                   */
/*                                                                                    */
/*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND   */
/*  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED     */
/*  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE            */
/*  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR  */
/*  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES    */
/*  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;      */
/*  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON    */
/*  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT           */
/*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS     */
/*  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.                      */
/*                                                                                    */
/**************************************************************************************/

#ifndef EdgeRenderer_INCLUDE_ONCE
#define EdgeRenderer_INCLUDE_ONCE

#include <vlGraphics/Renderer.hpp>
#include <vlGraphics/EdgeExtractor.hpp>
#include <vlGraphics/EdgeUpdateCallback.hpp>

namespace vl
{
  class VLGRAPHICS_EXPORT EdgeRenderer: public Renderer
  {
    VL_INSTRUMENT_CLASS(vl::EdgeRenderer, Renderer)

    class WFInfo: public Object
    {
    public:
      WFInfo(): mColor( vl::black ) {}
      fvec4 mColor;
      ref<Geometry> mGeometry;
      ref<EdgeUpdateCallback> mEdgeCallback;
    };

  public:
    EdgeRenderer(): mLineWidth(1.0f), mPolygonOffsetFactor(1.0f), mPolygonOffsetUnits(1.0f), mCreaseAngle(44.0f), mShowHiddenLines(true), mShowCreases(true), mSmoothLines(true)
    {
      VL_DEBUG_SET_OBJECT_NAME()
    }

    const RenderQueue* render(const RenderQueue* in_render_queue, Camera* camera, real frame_clock);

    WFInfo* declareActor(Actor* act, const fvec4& color);
    WFInfo* declareActor(Actor* act);

    void clearCache() { mActorCache.clear(); }

    void setActorDirty(Actor* actor) { mActorCache.erase(actor); }

    void setShowHiddenLines(bool show) { mShowHiddenLines = show; }
    bool showHiddenLines() const { return mShowHiddenLines; }

    void setShowCreases(bool show) { mShowCreases = show; }
    bool showCreases() const { return mShowCreases; }

    void setCreaseAngle(float degrees) { mCreaseAngle = degrees; }
    float creaseAngle() const { return mCreaseAngle; }

    void setSmoothLines(bool smooth) { mSmoothLines = smooth; }
    bool smoothLines() const { return mSmoothLines; }

    void setLineWidth(float width) { mLineWidth = width; }
    float lineWidth() const { return mLineWidth; }

    void setDefaultLineColor(const fvec4& c) { mDefaultLineColor = c; }
    const fvec4& defaultLineColor() const { return mDefaultLineColor; }

    void setPolygonOffsetFactor(float factor) { mPolygonOffsetFactor = factor; }
    float polygonOffsetFactor() const { return mPolygonOffsetFactor; }
    void setPolygonOffsetUnits(float units)   { mPolygonOffsetUnits = units;   }
    float polygonOffsetUnits() const  { return mPolygonOffsetUnits;  }

  protected:
    void renderSolids(Camera* camera, real frame_clock);
    void renderLines(Camera* camera);

  protected:
    std::map< ref<Actor>, ref<WFInfo> > mActorCache;
    std::map< ref<Actor>, ref<WFInfo> > mVisibleActors;
    fvec4 mDefaultLineColor;
    float mLineWidth;
    float mPolygonOffsetFactor;
    float mPolygonOffsetUnits;
    float mCreaseAngle;
    bool mShowHiddenLines;
    bool mShowCreases;
    bool mSmoothLines;
  };

}

#endif