Filter effects dialog:

[inkscape.git] / src / sp-item.h

diff --git a/src/sp-item.h b/src/sp-item.h
index 326ea27593e4b73be12cd83470e9a73b8d32b9de..89a74ceafd65f8982b4674b60c4168b4f36a2bb2 100644 (file)
--- a/src/sp-item.h
+++ b/src/sp-item.h
@@ -9,25 +9,28 @@
  * Authors:
  *   Lauris Kaplinski <lauris@kaplinski.com>
  *   bulia byak <buliabyak@users.sf.net>
+ *   Johan Engelen <j.b.c.engelen@ewi.utwente.nl>
  *
- * Copyright (C) 1999-2005 authors
+ * Copyright (C) 1999-2006 authors
  * Copyright (C) 2001-2002 Ximian, Inc.
  * Copyright (C) 2004 Monash University
  *
  * Released under GNU GPL, read the file 'COPYING' for more information
  */
-
-#include <libnr/nr-matrix.h>
-#include <libnr/nr-rect.h>
+#include <vector>
 
 #include "display/nr-arena-forward.h"
-#include "forward.h"
 #include "sp-object.h"
-#include <vector>
+#include <libnr/nr-matrix.h>
+#include <libnr/nr-rect.h>
 
-namespace Inkscape { class URIReference; }
 class SPGuideConstraint;
-
+struct SPClipPathReference;
+struct SPMaskReference;
+struct SPAvoidRef;
+struct SPPrintContext;
+namespace Inkscape { class URIReference; }
+ 
 enum {
     SP_EVENT_INVALID,
     SP_EVENT_NONE,
@@ -87,11 +90,20 @@ struct SPItemCtx {
 
 /** Abstract base class for all visible shapes. */
 struct SPItem : public SPObject {
+    enum BBoxType {
+        // legacy behavior: includes crude stroke, markers; excludes long miters, blur margin; is known to be wrong for caps
+        APPROXIMATE_BBOX, 
+        // includes only the bare path bbox, no stroke, no nothing
+        GEOMETRIC_BBOX,
+        // includes everything: correctly done stroke (with proper miters and caps), markers, filter margins (e.g. blur)
+        RENDERING_BBOX
+    };
+
     unsigned int sensitive : 1;
     unsigned int stop_paint: 1;
-    double r_cx;
-    double r_cy;
-    
+    double transform_center_x;
+    double transform_center_y;
+
     NR::Matrix transform;
     
     SPClipPathReference *clip_ref;
@@ -105,19 +117,29 @@ struct SPItem : public SPObject {
     std::vector<SPGuideConstraint> constraints;
     
     sigc::signal<void, NR::Matrix const *, SPItem *> _transformed_signal;
-    
+
+    void init();    
     bool isLocked() const;
     void setLocked(bool lock);
     
     bool isHidden() const;
     void setHidden(bool hidden);
+
+    bool isEvaluated() const;
+    void setEvaluated(bool visible);
+    void resetEvaluated();
     
     bool isHidden(unsigned display_key) const;
     
     bool isExplicitlyHidden() const;
     
     void setExplicitlyHidden(bool val);
-    
+
+    void setCenter(NR::Point object_centre);
+    void unsetCenter();
+    bool isCenterSet();
+    NR::Point getCenter() const;
+
     bool isVisibleAndUnlocked() const;
     
     bool isVisibleAndUnlocked(unsigned display_key) const;
@@ -129,11 +151,23 @@ struct SPItem : public SPObject {
     void raiseToTop();
     void lowerToBottom();
 
-    NR::Rect invokeBbox(NR::Matrix const &transform) const;
+    NR::Maybe<NR::Rect> getBounds(NR::Matrix const &transform, BBoxType type=APPROXIMATE_BBOX, unsigned int dkey=0) const;
+
+    sigc::connection _clip_ref_connection;
+    sigc::connection _mask_ref_connection;
 
     sigc::connection connectTransformed(sigc::slot<void, NR::Matrix const *, SPItem *> slot)  {
         return _transformed_signal.connect(slot);
     }
+
+private:
+    enum EvaluatedStatus
+    {
+        StatusUnknown, StatusCalculated, StatusSet
+    };
+
+    mutable bool _is_evaluated;
+    mutable EvaluatedStatus _evaluated_status;
 };
 
 typedef std::back_insert_iterator<std::vector<NR::Point> > SnapPointsIter;
@@ -173,7 +207,7 @@ struct SPItemClass {
 
 /* Methods */
 
-void sp_item_invoke_bbox(SPItem const *item, NRRect *bbox, NR::Matrix const &transform, unsigned const clear);
+void sp_item_invoke_bbox(SPItem const *item, NRRect *bbox, NR::Matrix const &transform, unsigned const clear, SPItem::BBoxType type = SPItem::APPROXIMATE_BBOX);
 void sp_item_invoke_bbox_full(SPItem const *item, NRRect *bbox, NR::Matrix const &transform, unsigned const flags, unsigned const clear);
 
 unsigned sp_item_pos_in_parent(SPItem *item);
@@ -195,7 +229,7 @@ void sp_item_adjust_stroke_width_recursive(SPItem *item, gdouble ex);
 void sp_item_adjust_paint_recursive(SPItem *item, NR::Matrix advertized_transform, NR::Matrix t_ancestors, bool is_pattern);
 
 void sp_item_write_transform(SPItem *item, Inkscape::XML::Node *repr, NRMatrix const *transform, NR::Matrix const *adv = NULL);
-void sp_item_write_transform(SPItem *item, Inkscape::XML::Node *repr, NR::Matrix const &transform, NR::Matrix const *adv = NULL);
+void sp_item_write_transform(SPItem *item, Inkscape::XML::Node *repr, NR::Matrix const &transform, NR::Matrix const *adv = NULL, bool compensate = true);
 
 void sp_item_set_item_transform(SPItem *item, NR::Matrix const &transform);
 
@@ -205,8 +239,8 @@ gint sp_item_event (SPItem *item, SPEvent *event);
 
 NRArenaItem *sp_item_get_arenaitem(SPItem *item, unsigned int key);
 
-void sp_item_bbox_desktop(SPItem *item, NRRect *bbox) __attribute__ ((deprecated));
-NR::Rect sp_item_bbox_desktop(SPItem *item);
+void sp_item_bbox_desktop(SPItem *item, NRRect *bbox, SPItem::BBoxType type = SPItem::APPROXIMATE_BBOX) __attribute__ ((deprecated));
+NR::Maybe<NR::Rect> sp_item_bbox_desktop(SPItem *item, SPItem::BBoxType type = SPItem::APPROXIMATE_BBOX);
 
 NR::Matrix i2anc_affine(SPObject const *item, SPObject const *ancestor);
 NR::Matrix i2i_affine(SPObject const *src, SPObject const *dest);