1 #ifndef CANVAS_AXONOMGRID_H
2 #define CANVAS_AXONOMGRID_H
4 /*
5 * Copyright (C) 2006-2007 Johan Engelen <johan@shouraizou.nl>
6 *
7 */
9 #include <display/sp-canvas.h>
10 #include <libnr/nr-coord.h>
11 #include "xml/repr.h"
12 #include <gtkmm/box.h>
14 #include <gtkmm.h>
15 #include "ui/widget/color-picker.h"
16 #include "ui/widget/scalar-unit.h"
18 #include "ui/widget/registered-widget.h"
19 #include "ui/widget/registry.h"
21 #include "xml/node-event-vector.h"
23 #include "snapper.h"
24 #include "line-snapper.h"
26 #include "canvas-grid.h"
28 struct SPDesktop;
29 struct SPNamedView;
31 namespace Inkscape {
33 class CanvasAxonomGrid : public CanvasGrid {
34 public:
35 CanvasAxonomGrid(SPNamedView * nv, Inkscape::XML::Node * in_repr, SPDocument * in_doc);
36 virtual ~CanvasAxonomGrid();
38 void Update (NR::Matrix const &affine, unsigned int flags);
39 void Render (SPCanvasBuf *buf);
41 void readRepr();
42 void onReprAttrChanged (Inkscape::XML::Node * repr, const gchar *key, const gchar *oldval, const gchar *newval, bool is_interactive);
44 SPUnit const* gridunit;
46 NR::Point origin; /**< Origin of the grid */
47 double lengthy; /**< The lengths of the primary y-axis */
48 double angle_deg[3]; /**< Angle of each axis (note that angle[2] == 0) */
49 double angle_rad[3]; /**< Angle of each axis (note that angle[2] == 0) */
50 double tan_angle[3]; /**< tan(angle[.]) */
51 guint32 color; /**< Color for normal lines */
52 guint32 empcolor; /**< Color for emphasis lines */
53 gint empspacing; /**< Spacing between emphasis lines */
54 bool scaled; /**< Whether the grid is in scaled mode */
56 NR::Point ow; /**< Transformed origin by the affine for the zoom */
57 double lyw; /**< Transformed length y by the affine for the zoom */
58 double lxw_x;
59 double lxw_z;
60 double spacing_ylines;
62 NR::Point sw; /**< the scaling factors of the affine transform */
64 protected:
65 virtual Gtk::Widget * newSpecificWidget();
67 private:
68 CanvasAxonomGrid(const CanvasAxonomGrid&);
69 CanvasAxonomGrid& operator=(const CanvasAxonomGrid&);
71 void updateWidgets();
72 };
76 class CanvasAxonomGridSnapper : public LineSnapper
77 {
78 public:
79 CanvasAxonomGridSnapper(CanvasAxonomGrid *grid, SPNamedView const *nv, NR::Coord const d);
81 private:
82 LineList _getSnapLines(NR::Point const &p) const;
83 void _addSnappedLine(SnappedConstraints &sc, NR::Point const snapped_point, NR::Coord const snapped_distance, NR::Point const normal_to_line, const NR::Point point_on_line) const;
85 CanvasAxonomGrid *grid;
86 };
89 }; //namespace Inkscape
93 #endif