oox/source/drawingml/diagram/layoutatomvisitorbase.hxx

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  19
  20 #ifndef INCLUDED_OOX_SOURCE_DRAWINGML_DIAGRAM_LAYOUTATOMVISITORBASE_HXX
  21 #define INCLUDED_OOX_SOURCE_DRAWINGML_DIAGRAM_LAYOUTATOMVISITORBASE_HXX
  22
  23 #include "diagram.hxx"
  24 #include "diagramlayoutatoms.hxx"
  25
  26 namespace oox::drawingml {
  27
  28 struct LayoutAtomVisitor
  29 {
  30     virtual ~LayoutAtomVisitor() {}
  31     virtual void visit(ConstraintAtom& rAtom) = 0;
  32     virtual void visit(RuleAtom& rAtom) = 0;
  33     virtual void visit(AlgAtom& rAtom) = 0;
  34     virtual void visit(ForEachAtom& rAtom) = 0;
  35     virtual void visit(ConditionAtom& rAtom) = 0;
  36     virtual void visit(ChooseAtom& rAtom) = 0;
  37     virtual void visit(LayoutNode& rAtom) = 0;
  38     virtual void visit(ShapeAtom& rAtom) = 0;
  39 };
  40
  41 // basic visitor implementation that follows if/else and for-each nodes
  42 // and keeps track of current position in data tree
  43 class LayoutAtomVisitorBase : public LayoutAtomVisitor
  44 {
  45 public:
  46     LayoutAtomVisitorBase(const Diagram& rDgm, const svx::diagram::Point* pRootPoint) :
  47         mrDgm(rDgm),
  48         mpCurrentNode(pRootPoint),
  49         mnCurrIdx(0),
  50         mnCurrStep(0),
  51         mnCurrCnt(0),
  52         meLookFor(LAYOUT_NODE)
  53     {}
  54
  55     void defaultVisit(LayoutAtom const& rAtom);
  56
  57     using LayoutAtomVisitor::visit;
  58     virtual void visit(ForEachAtom& rAtom) override;
  59     virtual void visit(ConditionAtom& rAtom) override;
  60     virtual void visit(ChooseAtom& rAtom) override;
  61     virtual void visit(LayoutNode& rAtom) override;
  62
  63 protected:
  64     const Diagram& mrDgm;
  65     const svx::diagram::Point* mpCurrentNode;
  66     sal_Int32 mnCurrIdx;
  67     sal_Int32 mnCurrStep;
  68     sal_Int32 mnCurrCnt;
  69     enum {LAYOUT_NODE, CONSTRAINT, ALGORITHM, RULE} meLookFor;
  70 };
  71
  72 class ShallowPresNameVisitor : public LayoutAtomVisitorBase
  73 {
  74 public:
  75     explicit ShallowPresNameVisitor(const Diagram& rDgm, const svx::diagram::Point* pRootPoint) :
  76         LayoutAtomVisitorBase(rDgm, pRootPoint),
  77         mnCnt(0)
  78     {}
  79
  80     using LayoutAtomVisitorBase::visit;
  81     virtual void visit(ConstraintAtom& rAtom) override;
  82     virtual void visit(RuleAtom& rAtom) override;
  83     virtual void visit(AlgAtom& rAtom) override;
  84     virtual void visit(ForEachAtom& rAtom) override;
  85     virtual void visit(LayoutNode& rAtom) override;
  86     virtual void visit(ShapeAtom& rAtom) override;
  87
  88     size_t getCount() const { return mnCnt; }
  89
  90 private:
  91     size_t mnCnt;
  92 };
  93
  94 }
  95
  96 #endif
  97
  98 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */