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Diffstat (limited to 'src/sp-hatch.h')
| -rw-r--r-- | src/sp-hatch.h | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/src/sp-hatch.h b/src/sp-hatch.h new file mode 100644 index 000000000..170f68a7a --- /dev/null +++ b/src/sp-hatch.h @@ -0,0 +1,158 @@ +/** @file + * SVG <hatch> implementation + *//* + * Author: + * Tomasz Boczkowski <penginsbacon@gmail.com> + * + * Copyright (C) 2014 Tomasz Boczkowski + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#ifndef SEEN_SP_HATCH_H +#define SEEN_SP_HATCH_H + +#include <list> +#include <stddef.h> +#include <glibmm/ustring.h> +#include <sigc++/connection.h> + +#include "svg/svg-length.h" +#include "svg/svg-angle.h" +#include "sp-paint-server.h" +#include "uri-references.h" + +class SPHatchReference; +class SPHatchPath; +class SPItem; + +namespace Inkscape { + +class Drawing; +class DrawingPattern; + +namespace XML { + +class Node; + +} +} + +#define SP_HATCH(obj) (dynamic_cast<SPHatch*>((SPObject*)obj)) +#define SP_IS_HATCH(obj) (dynamic_cast<const SPHatch*>((SPObject*)obj) != NULL) + +class SPHatch : public SPPaintServer { +public: + enum HatchUnits { + UNITS_USERSPACEONUSE, + UNITS_OBJECTBOUNDINGBOX + }; + + SPHatch(); + virtual ~SPHatch(); + + /* Reference (href) */ + Glib::ustring href; + SPHatchReference *ref; + + gdouble x() const; + gdouble y() const; + gdouble pitch() const; + gdouble rotate() const; + HatchUnits hatchUnits() const; + HatchUnits hatchContentUnits() const; + Geom::Affine const &hatchTransform() const; + SPHatch *rootHatch(); //TODO: const + + bool isValid() const; + + Inkscape::DrawingPattern *show(Inkscape::Drawing &drawing, unsigned int key); + void hide(unsigned int key); + virtual cairo_pattern_t* pattern_new(cairo_t *ct, Geom::OptRect const &bbox, double opacity); + + void setBBox(unsigned int key, Geom::OptRect const &bbox); + +protected: + virtual void build(SPDocument* doc, Inkscape::XML::Node* repr); + virtual void release(); + virtual void child_added(Inkscape::XML::Node* child, Inkscape::XML::Node* ref); + virtual void set(unsigned int key, const gchar* value); + virtual void update(SPCtx* ctx, unsigned int flags); + virtual void modified(unsigned int flags); + +private: + struct View { + View(Inkscape::DrawingPattern *arenaitem, int key); + //Do not delete arenaitem in destructor. + + Inkscape::DrawingPattern *arenaitem; + Geom::OptRect bbox; + unsigned int key; + }; + typedef std::vector<SPHatchPath *>::iterator ChildIterator; + typedef std::vector<SPHatchPath const *>::const_iterator ConstChildIterator; + typedef std::list<View>::iterator ViewIterator; + void _updateView(View &view); + + static bool _hasHatchPatchChildren(SPHatch const* hatch); + + void _children(std::vector<SPHatchPath*>& l); + void _children(std::vector<SPHatchPath const *>& l) const; + + Geom::OptInterval _calculateStripExtents(Geom::OptRect bbox); + + /** + Gets called when the hatch is reattached to another <hatch> + */ + void _onRefChanged(SPObject *old_ref, SPObject *ref); + + /** + Gets called when the referenced <hatch> is changed + */ + void _onRefModified(SPObject *ref, guint flags); + + /* patternUnits and patternContentUnits attribute */ + HatchUnits _hatchUnits : 1; + bool _hatchUnits_set : 1; + HatchUnits _hatchContentUnits : 1; + bool _hatchContentUnits_set : 1; + /* hatchTransform attribute */ + Geom::Affine _hatchTransform; + bool _hatchTransform_set : 1; + /* Strip */ + SVGLength _x; + SVGLength _y; + SVGLength _pitch; + SVGAngle _rotate; + + sigc::connection _modified_connection; + + std::list<View> _display; +}; + + +class SPHatchReference : public Inkscape::URIReference { +public: + SPHatchReference (SPObject *obj) : URIReference(obj) {} + SPHatch *getObject() const { + return reinterpret_cast<SPHatch *>(URIReference::getObject()); + } + +protected: + virtual bool _acceptObject(SPObject *obj) const { + return SP_IS_HATCH (obj); + } +}; + +#endif // SEEN_SP_HATCH_H + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 : |