summaryrefslogtreecommitdiffstats
path: root/src/object/sp-hatch.h
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--src/object/sp-hatch.h197
1 files changed, 197 insertions, 0 deletions
diff --git a/src/object/sp-hatch.h b/src/object/sp-hatch.h
new file mode 100644
index 0000000..903bc8e
--- /dev/null
+++ b/src/object/sp-hatch.h
@@ -0,0 +1,197 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/**
+ * @file
+ * SVG <hatch> implementation
+ */
+/*
+ * Authors:
+ * Tomasz Boczkowski <penginsbacon@gmail.com>
+ * Jon A. Cruz <jon@joncruz.org>
+ *
+ * Copyright (C) 2014 Tomasz Boczkowski
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#ifndef SEEN_SP_HATCH_H
+#define SEEN_SP_HATCH_H
+
+#include <list>
+#include <cstddef>
+#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
+ };
+
+ class RenderInfo {
+ public:
+ RenderInfo();
+ ~RenderInfo();
+
+ Geom::Affine child_transform;
+ Geom::Affine pattern_to_user_transform;
+ Geom::Rect tile_rect;
+
+ int overflow_steps;
+ Geom::Affine overflow_step_transform;
+ Geom::Affine overflow_initial_transform;
+ };
+
+ SPHatch();
+ ~SPHatch() override;
+
+ // 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
+
+ std::vector<SPHatchPath *> hatchPaths();
+ std::vector<SPHatchPath const *> hatchPaths() const;
+
+ SPHatch *clone_if_necessary(SPItem *item, const gchar *property);
+ void transform_multiply(Geom::Affine postmul, bool set);
+
+ bool isValid() const override;
+
+ Inkscape::DrawingPattern *show(Inkscape::Drawing &drawing, unsigned int key, Geom::OptRect bbox) override;
+ void hide(unsigned int key) override;
+ cairo_pattern_t* pattern_new(cairo_t *ct, Geom::OptRect const &bbox, double opacity) override;
+
+ RenderInfo calculateRenderInfo(unsigned key) const;
+ Geom::Interval bounds() const;
+ void setBBox(unsigned int key, Geom::OptRect const &bbox) override;
+
+protected:
+ void build(SPDocument* doc, Inkscape::XML::Node* repr) override;
+ void release() override;
+ void child_added(Inkscape::XML::Node* child, Inkscape::XML::Node* ref) override;
+ void set(SPAttr key, const gchar* value) override;
+ void update(SPCtx* ctx, unsigned int flags) override;
+ void modified(unsigned int flags) override;
+
+private:
+ class View {
+ public:
+ View(Inkscape::DrawingPattern *arenaitem, int key);
+ //Do not delete arenaitem in destructor.
+
+ ~View();
+
+ 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;
+ typedef std::list<View>::const_iterator ConstViewIterator;
+
+ static bool _hasHatchPatchChildren(SPHatch const* hatch);
+
+ void _updateView(View &view);
+ RenderInfo _calculateRenderInfo(View const &view) const;
+ Geom::OptInterval _calculateStripExtents(Geom::OptRect const &bbox) const;
+
+ /**
+ Count how many times hatch is used by the styles of o and its descendants
+ */
+ guint _countHrefs(SPObject *o) const;
+
+ /**
+ * 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:
+ bool _acceptObject(SPObject *obj) const override {
+ return dynamic_cast<SPHatch *>(obj) != nullptr && URIReference::_acceptObject(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 :