Fixed redraw-area dependent result when using filters with low quality

[inkscape.git] / src / display / canvas-axonomgrid.h

diff --git a/src/display/canvas-axonomgrid.h b/src/display/canvas-axonomgrid.h
index 79de72b43340abe7adf65eba7980445207a3f723..e36804d7c409d60b125fac8fc99fcc55e17c857b 100644 (file)
--- a/src/display/canvas-axonomgrid.h
+++ b/src/display/canvas-axonomgrid.h
@@ -1,59 +1,94 @@
-#ifndef SP_CANVAS_AXONOMGRID_H
-#define SP_CANVAS_AXONOMGRID_H
+#ifndef CANVAS_AXONOMGRID_H
+#define CANVAS_AXONOMGRID_H
 
 /*
- * SPCAxonomGrid
+ * Copyright (C) 2006-2007 Johan Engelen  <johan@shouraizou.nl>
  *
- * Generic (and quite unintelligent) modified copy of the grid item for gnome canvas
- *
- * Copyright (C) 2006 Johan Engelen  <johan@shouraizou.nl>
- * Copyright (C) 2000 Lauris Kaplinski 2000
- *
- */
+  */
 
 #include <display/sp-canvas.h>
-#include <libnr/nr-coord.h>
-
-
-#define SP_TYPE_CAXONOMGRID            (sp_caxonomgrid_get_type ())
-#define SP_CAXONOMGRID(obj)            (GTK_CHECK_CAST ((obj), SP_TYPE_CAXONOMGRID, SPCAxonomGrid))
-#define SP_CAXONOMGRID_CLASS(klass)    (GTK_CHECK_CLASS_CAST ((klass), SP_TYPE_CAXONOMGRID, SPCAxonomGridClass))
-#define SP_IS_CAXONOMGRID(obj)         (GTK_CHECK_TYPE ((obj), SP_TYPE_CAXONOMGRID))
-#define SP_IS_CAXONOMGRID_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), SP_TYPE_CAXONOMGRID))
-
-
-/** \brief  All the variables that are tracked for a axonometric grid specific
-            canvas item. */
-struct SPCAxonomGrid : public SPCanvasItem{
-       NR::Point origin;     /**< Origin of the grid */
-       double lengthy;       /**< The lengths of the primary y-axis */
-       double angle_deg[3];  /**< Angle of each axis (note that angle[2] == 0) */
-       double angle_rad[3];  /**< Angle of each axis (note that angle[2] == 0) */
-       double tan_angle[3];  /**< tan(angle[.]) */
-       guint32 color;        /**< Color for normal lines */
-       guint32 empcolor;     /**< Color for emphasis lines */
-       gint empspacing;      /**< Spacing between emphasis lines */
-       bool scaled;          /**< Whether the grid is in scaled mode */
-       
-       NR::Point ow;         /**< Transformed origin by the affine for the zoom */
-       double lyw;           /**< Transformed length y by the affine for the zoom */
-       double lxw_x;
-       double lxw_z;
-       double spacing_ylines;
-                          
-    NR::Point sw;          /**< the scaling factors of the affine transform */
+#include "xml/repr.h"
+#include <gtkmm/box.h>
+
+#include <gtkmm.h>
+#include "ui/widget/color-picker.h"
+#include "ui/widget/scalar-unit.h"
+
+#include "ui/widget/registered-widget.h"
+#include "ui/widget/registry.h"
+
+#include "xml/node-event-vector.h"
+
+#include "snapper.h"
+#include "line-snapper.h"
+
+#include "canvas-grid.h"
+
+struct SPDesktop;
+struct SPNamedView;
+
+namespace Inkscape {
+
+class CanvasAxonomGrid : public CanvasGrid {
+public:
+    CanvasAxonomGrid(SPNamedView * nv, Inkscape::XML::Node * in_repr, SPDocument * in_doc);
+    virtual ~CanvasAxonomGrid();
+
+    void Update (Geom::Matrix const &affine, unsigned int flags);
+    void Render (SPCanvasBuf *buf);
+
+    void readRepr();
+    void onReprAttrChanged (Inkscape::XML::Node * repr, const gchar *key, const gchar *oldval, const gchar *newval, bool is_interactive);
+
+    double lengthy;       /**< The lengths of the primary y-axis */
+    double angle_deg[3];  /**< Angle of each axis (note that angle[2] == 0) */
+    double angle_rad[3];  /**< Angle of each axis (note that angle[2] == 0) */
+    double tan_angle[3];  /**< tan(angle[.]) */
+
+    bool scaled;          /**< Whether the grid is in scaled mode */
+
+    Geom::Point ow;         /**< Transformed origin by the affine for the zoom */
+    double lyw;           /**< Transformed length y by the affine for the zoom */
+    double lxw_x;
+    double lxw_z;
+    double spacing_ylines;
+
+    Geom::Point sw;          /**< the scaling factors of the affine transform */
+
+protected:
+    virtual Gtk::Widget * newSpecificWidget();
+
+private:
+    CanvasAxonomGrid(const CanvasAxonomGrid&);
+    CanvasAxonomGrid& operator=(const CanvasAxonomGrid&);
+
+    void updateWidgets();
 };
 
-struct SPCAxonomGridClass {
-       SPCanvasItemClass parent_class;
+
+
+class CanvasAxonomGridSnapper : public LineSnapper
+{
+public:
+    CanvasAxonomGridSnapper(CanvasAxonomGrid *grid, SnapManager *sm, Geom::Coord const d);
+    bool ThisSnapperMightSnap() const;
+
+    Geom::Coord getSnapperTolerance() const; //returns the tolerance of the snapper in screen pixels (i.e. independent of zoom)
+       bool getSnapperAlwaysSnap() const; //if true, then the snapper will always snap, regardless of its tolerance
+
+private:
+    LineList _getSnapLines(Geom::Point const &p) const;
+    void _addSnappedLine(SnappedConstraints &sc, Geom::Point const snapped_point, Geom::Coord const snapped_distance, SnapSourceType const &source, Geom::Point const normal_to_line, const Geom::Point point_on_line) const;
+    void _addSnappedPoint(SnappedConstraints &sc, Geom::Point const snapped_point, Geom::Coord const snapped_distance, SnapSourceType const &source) const;
+
+    CanvasAxonomGrid *grid;
 };
 
 
-/* Standard Gtk function */
-GtkType sp_caxonomgrid_get_type (void);
+}; //namespace Inkscape
 
 
 
-#endif    
+#endif