0026361: Visualization - move OpenGl_TextFormatter to Font_TextFormatter
[occt.git] / src / OpenGl / OpenGl_TextBuilder.hxx
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317d68c9 1// Created on: 2015-06-18
2// Created by: Ilya SEVRIKOV
3// Copyright (c) 2015 OPEN CASCADE SAS
4//
5// This file is part of Open CASCADE Technology software library.
6//
7// This library is free software; you can redistribute it and/or modify it under
8// the terms of the GNU Lesser General Public License version 2.1 as published
9// by the Free Software Foundation, with special exception defined in the file
10// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
11// distribution for complete text of the license and disclaimer of any warranty.
12//
13// Alternatively, this file may be used under the terms of Open CASCADE
14// commercial license or contractual agreement.
15
16#ifndef OpenGl_TextBuilder_Header
17#define OpenGl_TextBuilder_Header
18
19#include <Font_TextFormatter.hxx>
20
21#include <OpenGl_Context.hxx>
22#include <OpenGl_Font.hxx>
23#include <OpenGl_VertexBuffer.hxx>
24#include <OpenGl_VertexBufferEditor.hxx>
25#include <OpenGl_Vec.hxx>
26
27#include <NCollection_Vector.hxx>
28#include <NCollection_Handle.hxx>
29
30
31//! This class generates primitive array required for rendering textured text using OpenGl_Font instance.
32class OpenGl_TextBuilder
33{
34public:
35
36 //! Creates empty object.
37 OpenGl_TextBuilder();
38
39 //! Creates texture quads for the given text.
40 Standard_EXPORT void Perform (const Font_TextFormatter& theFormatter,
41 const Handle(OpenGl_Context)& theContext,
42 OpenGl_Font& theFont,
43 NCollection_Vector<GLuint>& theTextures,
44 NCollection_Vector<Handle(OpenGl_VertexBuffer)>& theVertsPerTexture,
45 NCollection_Vector<Handle(OpenGl_VertexBuffer)>& theTCrdsPerTexture);
46
47protected: //! @name class auxillary methods
48
49 Standard_EXPORT void createGlyphs (const Font_TextFormatter& theFormatter,
50 const Handle(OpenGl_Context)& theCtx,
51 OpenGl_Font& theFont,
52 NCollection_Vector<GLuint>& theTextures,
53 NCollection_Vector< NCollection_Handle < NCollection_Vector <OpenGl_Vec2> > >& theVertsPerTexture,
54 NCollection_Vector< NCollection_Handle < NCollection_Vector <OpenGl_Vec2> > >& theTCrdsPerTexture);
55
56protected: //! @name class auxillary fields
57
58 NCollection_Vector<OpenGl_Font::Tile> myTileRects;
59 OpenGl_VertexBufferEditor<OpenGl_Vec2> myVboEditor;
60};
61
62#endif // OpenGl_TextBuilder_Header