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diff --git a/src/object/sp-namedview.h b/src/object/sp-namedview.h
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+// SPDX-License-Identifier: GPL-2.0-or-later
+#ifndef INKSCAPE_SP_NAMEDVIEW_H
+#define INKSCAPE_SP_NAMEDVIEW_H
+
+/*
+ * <sodipodi:namedview> implementation
+ *
+ * Authors:
+ * Lauris Kaplinski <lauris@kaplinski.com>
+ * Abhishek Sharma
+ *
+ * Copyright (C) 2006 Johan Engelen <johan@shouraizou.nl>
+ * Copyright (C) Lauris Kaplinski 2000-2002
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include "attributes.h"
+#include "sp-object-group.h"
+#include "snap.h"
+#include "document.h"
+#include "util/units.h"
+#include "svg/svg-bool.h"
+#include <vector>
+
+namespace Inkscape {
+ class CanvasPage;
+ class CanvasGrid;
+ namespace Util {
+ class Unit;
+ }
+}
+
+typedef unsigned int guint32;
+typedef guint32 GQuark;
+
+enum {
+ SP_BORDER_LAYER_BOTTOM,
+ SP_BORDER_LAYER_TOP
+};
+
+class SPNamedView : public SPObjectGroup {
+public:
+ SPNamedView();
+ ~SPNamedView() override;
+
+ unsigned int editable : 1;
+
+ SVGBool showguides;
+ SVGBool lockguides;
+ SVGBool grids_visible;
+
+ guint32 desk_color;
+ SVGBool desk_checkerboard;
+
+ double zoom;
+ double rotation; // Document rotation in degrees (positive is clockwise)
+ double cx;
+ double cy;
+ int window_width;
+ int window_height;
+ int window_x;
+ int window_y;
+ int window_maximized;
+
+ SnapManager snap_manager;
+ std::vector<Inkscape::CanvasGrid *> grids;
+
+ Inkscape::Util::Unit const *display_units; // Units used for the UI (*not* the same as units of SVG coordinates)
+ // Inkscape::Util::Unit const *page_size_units; // Only used in "Custom size" part of Document Properties dialog
+
+ GQuark default_layer_id;
+
+ double connector_spacing;
+
+ guint32 guidecolor;
+ guint32 guidehicolor;
+
+ std::vector<SPGuide *> guides;
+ std::vector<SPDesktop *> views;
+
+ int viewcount;
+
+ void show(SPDesktop *desktop);
+ void hide(SPDesktop const *desktop);
+ void setDefaultAttribute(std::string attribute, std::string preference, std::string fallback);
+ void activateGuides(void* desktop, bool active);
+ char const *getName() const;
+ std::vector<SPDesktop *> const getViewList() const;
+ Inkscape::Util::Unit const * getDisplayUnit() const;
+ void setDisplayUnit(std::string unit);
+ void setDisplayUnit(Inkscape::Util::Unit const *unit);
+
+ void translateGuides(Geom::Translate const &translation);
+ void translateGrids(Geom::Translate const &translation);
+ void scrollAllDesktops(double dx, double dy, bool is_scrolling);
+ void writeNewGrid(SPDocument *document,int gridtype);
+
+ void toggleShowGuides();
+ void toggleLockGuides();
+
+ bool getLockGuides();
+ void setLockGuides(bool v);
+
+ void setShowGuides(bool v);
+ bool getShowGuides();
+
+ void updateViewPort();
+
+ // page background, border, desk colors
+ void change_color(unsigned int rgba, SPAttr color_key, SPAttr opacity_key = SPAttr::INVALID);
+ // show border, border on top, anti-aliasing, ...
+ void change_bool_setting(SPAttr key, bool value);
+ // sync desk colors
+ void set_desk_color(SPDesktop* desktop);
+
+private:
+ void updateGuides();
+ void setShowGuideSingle(SPGuide *guide);
+
+ double getMarginLength(gchar const * const key,Inkscape::Util::Unit const * const margin_units,Inkscape::Util::Unit const * const return_units,double const width,double const height,bool const use_width);
+ friend class SPDocument;
+
+ Inkscape::CanvasPage *_viewport = nullptr;
+
+protected:
+ void build(SPDocument *document, Inkscape::XML::Node *repr) override;
+ void release() override;
+ void modified(unsigned int flags) override;
+ void update(SPCtx *ctx, unsigned int flags) override;
+ void set(SPAttr key, char const* value) override;
+
+ void child_added(Inkscape::XML::Node* child, Inkscape::XML::Node* ref) override;
+ void remove_child(Inkscape::XML::Node* child) override;
+ void order_changed(Inkscape::XML::Node *child, Inkscape::XML::Node *old_repr,
+ Inkscape::XML::Node *new_repr) override;
+
+ Inkscape::XML::Node* write(Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, unsigned int flags) override;
+};
+
+
+void sp_namedview_window_from_document(SPDesktop *desktop);
+void sp_namedview_zoom_and_view_from_document(SPDesktop *desktop);
+void sp_namedview_document_from_window(SPDesktop *desktop);
+void sp_namedview_update_layers_from_document (SPDesktop *desktop);
+
+void sp_namedview_show_grids(SPNamedView *namedview, bool show, bool dirty_document);
+Inkscape::CanvasGrid * sp_namedview_get_first_enabled_grid(SPNamedView *namedview);
+
+MAKE_SP_OBJECT_DOWNCAST_FUNCTIONS(SP_NAMEDVIEW, SPNamedView)
+
+#endif /* !INKSCAPE_SP_NAMEDVIEW_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 :