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Graphic3d_RenderingParams::ToShowStats - new option displaying rendering statistics. OpenGl_FrameStats - new class for accumulating frame statistics. OpenGl_Context::FrameStats() provides an access to the frame stats used for currently rendered context. OpenGl_View::Redraw() and OpenGl_View::RedrawImmediate() resets counters within OpenGl_Context::FrameStats(). OpenGl_Layer::UpdateCulling() - simplified resetting of culling state for cullable structures.
180 lines
7.3 KiB
C++
Executable File
180 lines
7.3 KiB
C++
Executable File
// Created on: 2011-07-13
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// Created by: Sergey ZERCHANINOV
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// Copyright (c) 2011-2013 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef OpenGl_Text_Header
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#define OpenGl_Text_Header
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#include <OpenGl_Element.hxx>
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#include <OpenGl_AspectText.hxx>
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#include <OpenGl_TextParam.hxx>
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#include <OpenGl_TextBuilder.hxx>
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#include <TCollection_ExtendedString.hxx>
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#include <Graphic3d_Vertex.hxx>
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#include <Graphic3d_HorizontalTextAlignment.hxx>
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#include <Graphic3d_RenderingParams.hxx>
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#include <Graphic3d_VerticalTextAlignment.hxx>
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#include <gp_Ax2.hxx>
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//! Text rendering
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class OpenGl_Text : public OpenGl_Element
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{
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public:
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//! Main constructor
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Standard_EXPORT OpenGl_Text (const Standard_Utf8Char* theText,
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const OpenGl_Vec3& thePoint,
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const OpenGl_TextParam& theParams);
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//! Creates new text in 3D space.
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Standard_EXPORT OpenGl_Text (const Standard_Utf8Char* theText,
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const gp_Ax2& theOrientation,
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const OpenGl_TextParam& theParams,
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const bool theHasOwnAnchor = true);
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//! Setup new string and position
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Standard_EXPORT void Init (const Handle(OpenGl_Context)& theCtx,
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const Standard_Utf8Char* theText,
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const OpenGl_Vec3& thePoint);
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//! Setup new string and parameters
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Standard_EXPORT void Init (const Handle(OpenGl_Context)& theCtx,
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const Standard_Utf8Char* theText,
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const OpenGl_Vec3& thePoint,
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const OpenGl_TextParam& theParams);
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//! Setup new position
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Standard_EXPORT void SetPosition (const OpenGl_Vec3& thePoint);
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//! Setup new font size
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Standard_EXPORT void SetFontSize (const Handle(OpenGl_Context)& theContext,
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const Standard_Integer theFontSize);
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Standard_EXPORT virtual void Render (const Handle(OpenGl_Workspace)& theWorkspace) const;
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Standard_EXPORT virtual void Release (OpenGl_Context* theContext);
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public: //! @name methods for compatibility with layers
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//! Empty constructor
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Standard_EXPORT OpenGl_Text();
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//! Create key for shared resource
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Standard_EXPORT static TCollection_AsciiString FontKey (const OpenGl_AspectText& theAspect,
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const Standard_Integer theHeight,
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const unsigned int theResolution);
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//! Find shared resource for specified font or initialize new one
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Standard_EXPORT static Handle(OpenGl_Font) FindFont (const Handle(OpenGl_Context)& theCtx,
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const OpenGl_AspectText& theAspect,
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const Standard_Integer theHeight,
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const unsigned int theResolution,
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const TCollection_AsciiString theKey);
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//! Compute text width
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Standard_EXPORT static void StringSize (const Handle(OpenGl_Context)& theCtx,
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const NCollection_String& theText,
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const OpenGl_AspectText& theTextAspect,
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const OpenGl_TextParam& theParams,
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const unsigned int theResolution,
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Standard_ShortReal& theWidth,
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Standard_ShortReal& theAscent,
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Standard_ShortReal& theDescent);
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//! Setup new string and parameters
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Standard_EXPORT void Init (const Handle(OpenGl_Context)& theCtx,
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const TCollection_ExtendedString& theText,
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const OpenGl_Vec2& thePoint,
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const OpenGl_TextParam& theParams);
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//! Perform rendering
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Standard_EXPORT void Render (const Handle(OpenGl_Context)& theCtx,
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const OpenGl_AspectText& theTextAspect,
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const unsigned int theResolution = Graphic3d_RenderingParams::THE_DEFAULT_RESOLUTION) const;
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protected:
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//! Destructor
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Standard_EXPORT virtual ~OpenGl_Text();
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friend class OpenGl_Trihedron;
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friend class OpenGl_GraduatedTrihedron;
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//! Release cached VBO resources
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Standard_EXPORT void releaseVbos (OpenGl_Context* theCtx);
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private:
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//! Setup matrix.
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void setupMatrix (const Handle(OpenGl_Context)& theCtx,
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const OpenGl_AspectText& theTextAspect,
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const OpenGl_Vec3 theDVec) const;
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//! Draw arrays of vertices.
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void drawText (const Handle(OpenGl_Context)& theCtx,
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const OpenGl_AspectText& theTextAspect) const;
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//! Draw rectangle from bounding text box.
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void drawRect (const Handle(OpenGl_Context)& theCtx,
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const OpenGl_AspectText& theTextAspect,
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const OpenGl_Vec4& theColorSubs) const;
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//! Main rendering code
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void render (const Handle(OpenGl_Context)& theCtx,
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const OpenGl_AspectText& theTextAspect,
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const OpenGl_Vec4& theColorText,
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const OpenGl_Vec4& theColorSubs,
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const unsigned int theResolution) const;
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protected:
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mutable Handle(OpenGl_Font) myFont;
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mutable NCollection_Vector<GLuint> myTextures; //!< textures' IDs
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mutable NCollection_Vector<Handle(OpenGl_VertexBuffer)> myVertsVbo; //!< VBOs of vertices
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mutable NCollection_Vector<Handle(OpenGl_VertexBuffer)> myTCrdsVbo; //!< VBOs of texture coordinates
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mutable Handle(OpenGl_VertexBuffer) myBndVertsVbo;//!< VBOs of vertices for bounding box
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mutable Font_Rect myBndBox;
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protected:
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mutable OpenGl_Mat4d myProjMatrix;
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mutable OpenGl_Mat4d myModelMatrix;
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mutable OpenGl_Mat4d myOrientationMatrix;
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mutable GLdouble myWinX;
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mutable GLdouble myWinY;
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mutable GLdouble myWinZ;
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mutable GLdouble myScaleHeight;
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mutable GLdouble myExportHeight;
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protected:
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OpenGl_TextParam myParams;
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NCollection_String myString;
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OpenGl_Vec3 myPoint;
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bool myIs2d;
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gp_Ax2 myOrientation; //!< Text orientation in 3D space.
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bool myHasPlane; //!< Check if text have orientation in 3D space.
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bool myHasAnchorPoint; //!< Shows if it has own attach point
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public:
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DEFINE_STANDARD_ALLOC
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};
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#endif //OpenGl_Text_Header
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