Generate a check board wipe (across) More...
#include <checkerboardwipe.hxx>
Inheritance diagram for slideshow::internal::CheckerBoardWipe:
Collaboration diagram for slideshow::internal::CheckerBoardWipe:
Public Member Functions | |
| CheckerBoardWipe (sal_Int32 unitsPerEdge=10) | |
| virtual ::basegfx::B2DPolyPolygon | operator() (double x) override |
| Retrieve the poly-polygon for value t. More... | |
 Public Member Functions inherited from slideshow::internal::ParametricPolyPolygon | |
| virtual | ~ParametricPolyPolygon () |
| virtual ::basegfx::B2DPolyPolygon | operator() (double t)=0 |
| Retrieve the poly-polygon for value t. More... | |
Private Attributes | |
| const sal_Int32 | m_unitsPerEdge |
| const ::basegfx::B2DPolyPolygon | m_unitRect |
Detailed Description
Generate a check board wipe (across)
Definition at line 32 of file checkerboardwipe.hxx.
Constructor & Destructor Documentation
◆ CheckerBoardWipe()
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inlineexplicit |
Definition at line 35 of file checkerboardwipe.hxx.
Member Function Documentation
◆ operator()()
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overridevirtual |
Retrieve the poly-polygon for value t.
- Parameters
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t Current parameter value to retrieve the corresponding poly-polygon for. Permissible values for t must be in the range [0,1].
- Returns
- a poly-polygon corresponding to the given parameter value. The poly-polygon is interpreted as living in the unit rectangle (i.e. [0,1]x[0,1]), but is not necessarily constrained to completely lie in this area (this very much depends on the actual effect to be generated). Although, from a performance perspective, it currently is advantageous to try to keep the poly-polygon within these bounds (at least if there are no hard reasons not to do so), because then reversion or out transformations are potentially faster to compute (see the TransitionInfo::meReverseMethod member in transitionfactory.cxx). Furthermore, if one of the polygon modifications involve subtraction (also see TransitionInfo::meReverseMethod), all generated polygons should be oriented clock-wise (i.e. traversing the polygon vertices with increasing vertex index should generate a clock-wise movement).
Implements slideshow::internal::ParametricPolyPolygon.
Definition at line 27 of file checkerboardwipe.cxx.
References basegfx::B2DPolyPolygon::append(), d, i, m_unitRect, m_unitsPerEdge, basegfx::B2DHomMatrix::scale(), t, basegfx::B2DPolyPolygon::transform(), and basegfx::B2DHomMatrix::translate().
Member Data Documentation
◆ m_unitRect
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private |
Definition at line 42 of file checkerboardwipe.hxx.
Referenced by operator()().
◆ m_unitsPerEdge
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private |
Definition at line 41 of file checkerboardwipe.hxx.
Referenced by operator()().
The documentation for this class was generated from the following files:
