1 // Copyright (c) 2013 OPEN CASCADE SAS
3 // The content of this file is subject to the Open CASCADE Technology Public
4 // License Version 6.5 (the "License"). You may not use the content of this file
5 // except in compliance with the License. Please obtain a copy of the License
6 // at http://www.opencascade.org and read it completely before using this file.
8 // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
9 // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
11 // The Original Code and all software distributed under the License is
12 // distributed on an "AS IS" basis, without warranty of any kind, and the
13 // Initial Developer hereby disclaims all such warranties, including without
14 // limitation, any warranties of merchantability, fitness for a particular
15 // purpose or non-infringement. Please see the License for the specific terms
16 // and conditions governing the rights and limitations under the License.
18 #ifndef OpenGl_Flipper_Header
19 #define OpenGl_Flipper_Header
21 #include <OpenGl_Element.hxx>
22 #include <OpenGl_Vec.hxx>
23 #include <Handle_OpenGl_Workspace.hxx>
27 //! Being rendered, the elements modifies current model-view matrix such that the axes of
28 //! the specified reference system (in model space) become oriented in the following way:
29 //! - X - heads to the right side of view.
30 //! - Y - heads to the up side of view.
31 //! - N(Z) - heads towards the screen.
32 //! Originally, this element serves for need of flipping the 3D text of dimension presentations.
33 class OpenGl_Flipper : public OpenGl_Element
37 //! Construct rendering element to flip model-view matrix
38 //! along the reference system to ensure up-Y, right-X orientation.
39 //! @param theReferenceSystem [in] the reference coordinate system.
40 Standard_EXPORT OpenGl_Flipper (const gp_Ax2& theReferenceSystem);
42 //! Set options for the element.
43 //! @param theIsEnabled [in] flag indicates whether the flipper
44 //! matrix modification should be set up or restored back.
45 void SetOptions (const Standard_Boolean theIsEnabled) { myIsEnabled = theIsEnabled; }
47 Standard_EXPORT virtual void Render (const Handle(OpenGl_Workspace)& theWorkspace) const;
48 Standard_EXPORT virtual void Release (const Handle(OpenGl_Context)& theCtx);
56 OpenGl_Vec4 myReferenceOrigin;
57 OpenGl_Vec4 myReferenceX;
58 OpenGl_Vec4 myReferenceY;
59 OpenGl_Vec4 myReferenceZ;
60 Standard_Boolean myIsEnabled;
64 #endif // OpenGl_Flipper_Header