// Created on: 2011-07-13
// Created by: Sergey ZERCHANINOV
-// Copyright (c) 2011-2012 OPEN CASCADE SAS
+// Copyright (c) 2011-2013 OPEN CASCADE SAS
//
// The content of this file is subject to the Open CASCADE Technology Public
// License Version 6.5 (the "License"). You may not use the content of this file
// purpose or non-infringement. Please see the License for the specific terms
// and conditions governing the rights and limitations under the License.
-
#ifndef OpenGl_Text_Header
#define OpenGl_Text_Header
#include <OpenGl_Element.hxx>
+#include <OpenGl_AspectText.hxx>
#include <OpenGl_TextParam.hxx>
+#include <OpenGl_TextFormatter.hxx>
#include <TCollection_ExtendedString.hxx>
#include <Graphic3d_Vertex.hxx>
#include <Graphic3d_HorizontalTextAlignment.hxx>
#include <Graphic3d_VerticalTextAlignment.hxx>
+class Handle(OpenGl_PrinterContext);
+
+//! Text rendering
class OpenGl_Text : public OpenGl_Element
{
public:
- OpenGl_Text (const TCollection_ExtendedString& AText,
- const Graphic3d_Vertex& APoint,
- const Standard_Real AHeight,
- const Graphic3d_HorizontalTextAlignment AHta,
- const Graphic3d_VerticalTextAlignment AVta);
+ //! Main constructor
+ Standard_EXPORT OpenGl_Text (const TCollection_ExtendedString& theText,
+ const OpenGl_Vec3& thePoint,
+ const OpenGl_TextParam& theParams);
+
+ //! Setup new string and position
+ Standard_EXPORT void Init (const Handle(OpenGl_Context)& theCtx,
+ const Standard_Utf8Char* theText,
+ const OpenGl_Vec3& thePoint);
+
+ //! Setup new string and parameters
+ Standard_EXPORT void Init (const Handle(OpenGl_Context)& theCtx,
+ const Standard_Utf8Char* theText,
+ const OpenGl_Vec3& thePoint,
+ const OpenGl_TextParam& theParams);
+
+ //! Setup new position
+ Standard_EXPORT void SetPosition (const OpenGl_Vec3& thePoint);
+
+ //! Setup new font size
+ Standard_EXPORT void SetFontSize (const Handle(OpenGl_Context)& theContext,
+ const Standard_Integer theFontSize);
+
+ Standard_EXPORT virtual void Render (const Handle(OpenGl_Workspace)& theWorkspace) const;
+ Standard_EXPORT virtual void Release (const Handle(OpenGl_Context)& theContext);
+
+public: //! @name methods for compatibility with layers
+
+ //! Empty constructor
+ OpenGl_Text();
+
+ //! Create key for shared resource
+ static TCollection_AsciiString FontKey (const OpenGl_AspectText& theAspect,
+ const Standard_Integer theHeight);
+
+ //! Find shared resource for specified font or initialize new one
+ static Handle(OpenGl_Font) FindFont (const Handle(OpenGl_Context)& theCtx,
+ const OpenGl_AspectText& theAspect,
+ const Standard_Integer theHeight,
+ const TCollection_AsciiString theKey);
+
+ //! Compute text width
+ static void StringSize (const Handle(OpenGl_Context)& theCtx,
+ const NCollection_String& theText,
+ const OpenGl_AspectText& theTextAspect,
+ const OpenGl_TextParam& theParams,
+ Standard_ShortReal& theWidth,
+ Standard_ShortReal& theAscent,
+ Standard_ShortReal& theDescent);
+
+ //! Setup new string and parameters
+ void Init (const Handle(OpenGl_Context)& theCtx,
+ const TCollection_ExtendedString& theText,
+ const OpenGl_Vec2& thePoint,
+ const OpenGl_TextParam& theParams);
+
+ //! Perform rendering
+ void Render (const Handle(OpenGl_PrinterContext)& thePrintCtx,
+ const Handle(OpenGl_Context)& theCtx,
+ const OpenGl_AspectText& theTextAspect) const;
+
+protected:
+
+ //! Destructor
+ Standard_EXPORT virtual ~OpenGl_Text();
+
+ friend class OpenGl_Trihedron;
+ friend class OpenGl_GraduatedTrihedron;
+
+private:
+
+ //! Release cached VBO resources
+ void releaseVbos (const Handle(OpenGl_Context)& theCtx);
+
+ //! Setup matrix.
+ void setupMatrix (const Handle(OpenGl_PrinterContext)& thePrintCtx,
+ const Handle(OpenGl_Context)& theCtx,
+ const OpenGl_AspectText& theTextAspect,
+ const OpenGl_Vec3 theDVec) const;
+
+ //! Draw arrays of vertices.
+ void drawText (const Handle(OpenGl_PrinterContext)& thePrintCtx,
+ const Handle(OpenGl_Context)& theCtx,
+ const OpenGl_AspectText& theTextAspect) const;
+
+ //! Main rendering code
+ void render (const Handle(OpenGl_PrinterContext)& thePrintCtx,
+ const Handle(OpenGl_Context)& theCtx,
+ const OpenGl_AspectText& theTextAspect,
+ const TEL_COLOUR& theColorText,
+ const TEL_COLOUR& theColorSubs) const;
+
+protected:
- virtual void Render (const Handle(OpenGl_Workspace)& theWorkspace) const;
- virtual void Release (const Handle(OpenGl_Context)& theContext);
+ mutable Handle(OpenGl_Font) myFont;
+ mutable NCollection_Vector<GLuint> myTextures; //!< textures' IDs
+ mutable NCollection_Vector<Handle(OpenGl_VertexBuffer)> myVertsVbo; //!< VBOs of vertices
+ mutable NCollection_Vector<Handle(OpenGl_VertexBuffer)> myTCrdsVbo; //!< VBOs of texture coordinates
+ mutable NCollection_Vector<Handle(OpenGl_Vec2Array)> myVertsArray; //!< arrays of vertices (for compatibility mode)
+ mutable NCollection_Vector<Handle(OpenGl_Vec2Array)> myTCrdsArray; //!< arrays of vertices (for compatibility mode)
+ mutable Font_FTFont::Rect myBndBox;
protected:
- virtual ~OpenGl_Text();
+ mutable GLdouble myProjMatrix[16];
+ mutable GLdouble myModelMatrix[16];
+ mutable GLint myViewport[4];
+ mutable GLdouble myWinX;
+ mutable GLdouble myWinY;
+ mutable GLdouble myWinZ;
+ mutable GLdouble myScaleHeight;
+ mutable GLdouble myExportHeight;
protected:
- OpenGl_TextParam myParam;
- TEL_POINT myAttachPnt;
- const wchar_t *myString;
+ OpenGl_TextParam myParams;
+ NCollection_String myString;
+ OpenGl_Vec3 myPoint;
+ bool myIs2d;
public:
projects / occt.git / blobdiff