/usr/include/oce/NIS_View.hxx is in liboce-visualization-dev 0.9.1-3.
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// Created: 06.07.07 10:08
// Author: Alexander GRIGORIEV
// Copyright: Open Cascade 2007
#ifndef NIS_View_HeaderFile
#define NIS_View_HeaderFile
#include <Handle_NIS_InteractiveObject.hxx>
#include <V3d_OrthographicView.hxx>
#include <Standard_DefineHandle.hxx>
#include <NCollection_List.hxx>
#include <NCollection_Vector.hxx>
#include <Bnd_B3f.hxx>
#include <TColStd_PackedMapOfInteger.hxx>
#include <gp_XY.hxx>
class NIS_InteractiveContext;
class gp_Ax1;
/**
* Manager of a single window with OpenGL context, used by one or more
* NIS_InteractiveContext instances.
* This class inherits V3d_OrthograpicView therefore its instances can be used
* to display any object that is normally handled by Graphic3d/V3d/AIS classes.
* Also the standard view operations: Pan, Rotate, Zoom, mouse API, etc. are
* supported due to this inheritance.<p>
* The new services added by this class is the visualisation of
* NIS_InteractiveObject (i.e., accommodation of NIS_InteractiveContext
* instances). This visualisation is done by the method MyCallback that is
* called just before redrawing the scene by Graphic3d/OpenGl drivers.<p>
* The View instance can be understood as a collector of several interactive
* contexts that exist independently (do not interfere) though they output
* into the same OpenGL context. The contexts are:
* <ul>
* <li>AIS_InteractiveContext associated with the view by means of V3d_Viewer
* instance (the traditional AIS architecture);</li>
* <li>1st associated NIS_InteractiveContext</li>
* <li>2nd associated NIS_InteractiveContext</li>
* <li>...</li>
* </ul>
* The list of associated NIS_InteractiveContext can be modified by methods
* AddContext and RemoveContext.
*/
class NIS_View : public V3d_OrthographicView
{
public:
// ---------- PUBLIC METHODS ----------
/**
* Attach the view to the window.
*/
Standard_EXPORT NIS_View (const Handle_V3d_Viewer& theViewer,
const Handle_Aspect_Window& theWindow = NULL);
/**
* Attach the view to the window.
*/
Standard_EXPORT void SetWindow(const Handle_Aspect_Window &theWindow);
/**
* Indicate whether to draw hilighted objects on top of all other ones
*/
inline void SetHilightOnTop(const Standard_Boolean theTop = Standard_True)
{ myIsTopHilight = theTop; }
/**
* Indicate whether to hilight selected object dynamically
* By default dynamic hilight works on all objects independently on its
* selected/non-selected state.
* This behaviour differs from the behaviour of AIS interactive context,
* that doesn't hilight dynamically (on mouse movements) selected objects.
* In the case both context are used in the same view the behaviour of both
* context can be made consistent by setting this flag to False
*/
inline void SetDynHilightSelected (const Standard_Boolean
theHilight = Standard_True)
{ myDoHilightSelected = theHilight; }
/**
* Zoom the view to fit to visible objects size and positions.
* @param theCoef
* Relative margin in both X and Y dimensions. For example, value 1.0
* will fit to twice the actual size.
* @return
* True if operation performed, False if failed (most likely because of
* very big actual scale)
*/
Standard_EXPORT Standard_Boolean FitAll3d (const Quantity_Coefficient theCoef
= 0.01);
/**
* Gets bounding box covering objects displayed in viewer.
*/
Standard_EXPORT Bnd_B3f GetBndBox() const;
/**
* Gets bounding box covering objects displayed in viewer.
* If operation is fails when Xmax < Xmin abd Ymax < Ymin
*/
Standard_EXPORT void GetBndBox(Standard_Integer& theXMin,
Standard_Integer& theXMax,
Standard_Integer& theYMin,
Standard_Integer& theYMax ) const;
// /**
// * Destructor.
// */
// Standard_EXPORT virtual ~NIS_View ();
/**
* Set or unset the dynamically hilighted object, depending on the
* given mouse coordinates.
*/
Standard_EXPORT void DynamicHilight (const Standard_Integer theX,
const Standard_Integer theY);
/**
* Unhilights the hilighted object if it coincides with the given
* object instance.
*/
Standard_EXPORT void DynamicUnhilight(const Handle_NIS_InteractiveObject&);
/**
* Unhilights the currently hilighted object.
*/
inline void DynamicUnhilight() { DynamicUnhilight(myDynHilighted); }
/**
* Set or unset the selected (hilighted) state of the object that is under
* the coordinates theX, theY.
* @param theX
* X coordinate of the view window
* @param theY
* X coordinate of the view window
* @param isForceMult
* True if the effect of multi-Selection should be forced (e.g., when Shift
* is pressed).
* @param theRedraw
* True to redraw view automatically (default value).
*/
Standard_EXPORT void Select (const Standard_Integer theX,
const Standard_Integer theY,
const Standard_Boolean isForceMult
= Standard_False,
const Standard_Boolean theRedraw
= Standard_True);
/**
* Set or unset the selected (hilighted) state of the objects that are
* intersected by 2D box in the view
* @param theXmin
* left X coordinate of the view window
* @param theYmin
* lower Y coordinate of the view window
* @param theXmax
* right X coordinate of the view window
* @param theYmax
* upper Y coordinate of the view window
* @param isForceMult
* True if the effect of multi-Selection should be forced (e.g., when Shift
* is pressed).
* @param isFullyIncluded
* True if only those objects are processed that are fully inside the
* selection rectangle. False if objects fully or partially included in
* the rectangle are processed.
* @param theRedraw
* True to redraw view automatically (default value).
*/
Standard_EXPORT void Select (const Standard_Integer theXmin,
const Standard_Integer theYmin,
const Standard_Integer theXmax,
const Standard_Integer theYmax,
const Standard_Boolean isForceMult
= Standard_False,
const Standard_Boolean isFullyIncluded
= Standard_False,
const Standard_Boolean theRedraw
= Standard_True);
/**
* Set or unset the selected (hilighted) state of the objects that are
* intersected by 2D polygon in the view
* @param thePolygon
* defines the vertices of a free-form closed polygon without
* self-intersections. The last point should not coincide with the first
* point of the list. Points are interpreted as X and Y integer coordinates
* of the view window. Any two neighbor points should not be confused.
* @param isForceMult
* True if the effect of multi-Selection should be forced (e.g., when Shift
* is pressed).
* @param isFullyIncluded
* True if only those objects are processed that are fully inside the
* selection rectangle. False if objects fully or partially included in
* the rectangle are processed.
* @param theRedraw
* True to redraw view automatically (default value).
*/
Standard_EXPORT void Select (const NCollection_List<gp_XY> &thePolygon,
const Standard_Boolean isForceMult
= Standard_False,
const Standard_Boolean isFullyIncluded
= Standard_False,
const Standard_Boolean theRedraw
= Standard_True);
/**
* Interactive selection by mouse click. Selection itself is performed in each
* Interactive Context attached to this View, accordingto the local parameters
* (mode, filter) of selection in each context.
* @param theX
* X coordinate of mouse pointer in the window.
* @param theY
* Y coordinate of mouse pointer in the window.
* @return
* the selected object picked by the minimal intersection distance among
* all contexts attached to this View.
*/
Standard_EXPORT Handle_NIS_InteractiveObject
Pick (const Standard_Integer theX,
const Standard_Integer theY);
/**
* Interactive selection by mouse click. Selection itself is performed in each
* Interactive Context attached to this View, accordingto the local parameters
* (mode, filter) of selection in each context.
* @param theAxis
* 3D axis for objects selection
* @param theOver
* Overlap for the selecting axis
* @param isOnlySel
* If False, any displayed object can be picked, otherwise only selectable
* ones.
* @return
* the selected object picked by the minimal intersection distance among
* all contexts attached to this View.
*/
Standard_EXPORT Handle_NIS_InteractiveObject
Pick (const gp_Ax1& theAxis,
const Standard_Real theOver,
const Standard_Boolean isOnlySel);
/**
* Gets all objects detected by last call of Pick() method
*/
inline NCollection_Vector<NIS_InteractiveObject *> GetDetected() const
{ return myDetected; }
/**
* Obtain the IDs of ex-lists.
*/
inline TColStd_PackedMapOfInteger& GetExListId ()
{ return myExListId; }
protected:
// ---------- PROTECTED METHODS ----------
static int MyCallback (Aspect_Drawable /* Window ID */,
void* /* user data */,
Aspect_GraphicCallbackStruct* /* call data */);
/**
* Register an interactive context for this view.
*/
Standard_EXPORT void AddContext (NIS_InteractiveContext *);
/**
* Detach an interactive context from this view.
*/
Standard_EXPORT void RemoveContext (NIS_InteractiveContext *);
private:
// ---------- PRIVATE FIELDS ----------
NCollection_List<NIS_InteractiveContext *> myContexts;
Handle_NIS_InteractiveObject myDynHilighted;
Standard_Boolean myIsTopHilight : 1;
Standard_Boolean myDoHilightSelected : 1;
NCollection_Vector<NIS_InteractiveObject *> myDetected;
TColStd_PackedMapOfInteger myExListId;
friend class NIS_InteractiveContext;
public:
// Declaration of CASCADE RTTI
DEFINE_STANDARD_RTTI (NIS_View)
};
// Definition of HANDLE object using Standard_DefineHandle.hxx
//DEFINE_STANDARD_HANDLE (NIS_View, V3d_OrthographicView)
#include <Handle_NIS_View.hxx>
#endif
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