Generate a vertical left waterfall wipe. More...
#include <waterfallwipe.hxx>
Public Member Functions | |
| WaterfallWipe (sal_Int32 nElements, bool flipOnYAxis) | |
| virtual ::basegfx::B2DPolyPolygon | operator() (double t) 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 | |
| bool | m_flipOnYAxis |
| ::basegfx::B2DPolygon | m_waterfall |
Detailed Description
Generate a vertical left waterfall wipe.
Definition at line 30 of file waterfallwipe.hxx.
Constructor & Destructor Documentation
◆ WaterfallWipe()
| slideshow::internal::WaterfallWipe::WaterfallWipe | ( | sal_Int32 | nElements, |
| bool | flipOnYAxis | ||
| ) |
Definition at line 30 of file waterfallwipe.cxx.
References basegfx::B2DPolygon::append(), m_waterfall, nElements, pos, and basegfx::B2DPolygon::setClosed().
Member Function Documentation
◆ operator()()
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overridevirtual |
Retrieve the poly-polygon for value t.
- Parameters
-
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 52 of file waterfallwipe.cxx.
References basegfx::B2DPolygon::count(), basegfx::utils::createTranslateB2DHomMatrix(), slideshow::internal::flipOnYAxis(), m_flipOnYAxis, m_waterfall, basegfx::B2DPolygon::setB2DPoint(), t, and basegfx::B2DPolygon::transform().
Member Data Documentation
◆ m_flipOnYAxis
|
private |
Definition at line 36 of file waterfallwipe.hxx.
Referenced by operator()().
◆ m_waterfall
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private |
Definition at line 37 of file waterfallwipe.hxx.
Referenced by operator()(), and WaterfallWipe().
The documentation for this class was generated from the following files:
