0024288: Provide flipping text for AIS_Dimensions
[occt.git] / src / OpenGl / OpenGl_Flipper.hxx
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938d4544 1// Copyright (c) 2013 OPEN CASCADE SAS
2//
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.
7//
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.
10//
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.
17
18#ifndef OpenGl_Flipper_Header
19#define OpenGl_Flipper_Header
20
21#include <OpenGl_Element.hxx>
22#include <OpenGl_Vec.hxx>
23#include <Handle_OpenGl_Workspace.hxx>
24
25class gp_Ax2;
26
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.
33class OpenGl_Flipper : public OpenGl_Element
34{
35public:
36
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);
41
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; }
46
47 Standard_EXPORT virtual void Render (const Handle(OpenGl_Workspace)& theWorkspace) const;
48 Standard_EXPORT virtual void Release (const Handle(OpenGl_Context)& theCtx);
49
50public:
51
52 DEFINE_STANDARD_ALLOC
53
54protected:
55
56 OpenGl_Vec4 myReferenceOrigin;
57 OpenGl_Vec4 myReferenceX;
58 OpenGl_Vec4 myReferenceY;
59 OpenGl_Vec4 myReferenceZ;
60 Standard_Boolean myIsEnabled;
61
62};
63
64#endif // OpenGl_Flipper_Header