diff options
| -rw-r--r-- | include/vcl/graphictools.hxx | 28 | ||||
| -rw-r--r-- | vcl/source/gdi/graphictools.cxx | 11 |
2 files changed, 39 insertions, 0 deletions
diff --git a/include/vcl/graphictools.hxx b/include/vcl/graphictools.hxx index 3600f1a364fc..70a17fd9279d 100644 --- a/include/vcl/graphictools.hxx +++ b/include/vcl/graphictools.hxx @@ -142,6 +142,34 @@ public: // mutators /// Set path to stroke void setPath ( const Polygon& ); + /** Set the polygon that is put at the start of the line + + The polygon has to be in a special normalized position, and + already scaled to the desired size: the center of the stroked + path will meet the given polygon at (0,0) from negative y + values. Thus, an arrow would have its baseline on the x axis, + going upwards to positive y values. Furthermore, the polygon + also has to be scaled appropriately: the width of the joining + stroke is defined to be SvtGraphicStroke::normalizedArrowWidth + (0x10000), i.e. ranging from x=-0x8000 to x=0x8000. If your + arrow does have this width, it will fit every stroke with + every stroke width exactly. + */ + void setStartArrow ( const PolyPolygon& ); + /** Set the polygon that is put at the end of the line + + The polygon has to be in a special normalized position, and + already scaled to the desired size: the center of the stroked + path will meet the given polygon at (0,0) from negative y + values. Thus, an arrow would have its baseline on the x axis, + going upwards to positive y values. Furthermore, the polygon + also has to be scaled appropriately: the width of the joining + stroke is defined to be SvtGraphicStroke::normalizedArrowWidth + (0x10000), i.e. ranging from x=-0x8000 to x=0x8000. If your + arrow does have this width, it will fit every stroke with + every stroke width exactly. + */ + void setEndArrow ( const PolyPolygon& ); /// Affine scaling in both X and Y dimensions void scale ( double fScaleX, double fScaleY ); diff --git a/vcl/source/gdi/graphictools.cxx b/vcl/source/gdi/graphictools.cxx index 26cb977846cf..1a0190a4e91b 100644 --- a/vcl/source/gdi/graphictools.cxx +++ b/vcl/source/gdi/graphictools.cxx @@ -111,6 +111,17 @@ void SvtGraphicStroke::setPath( const Polygon& rPoly ) maPath = rPoly; } +void SvtGraphicStroke::setStartArrow( const PolyPolygon& rPoly ) +{ + maStartArrow = rPoly; +} + +void SvtGraphicStroke::setEndArrow( const PolyPolygon& rPoly ) +{ + maEndArrow = rPoly; +} + + void SvtGraphicStroke::scale( double fXScale, double fYScale ) { // Clearly scaling stroke-width for fat lines is rather a problem |