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0026361: Visualization - move OpenGl_TextFormatter to Font_TextFormatter
for usage without OpenGL. Split OpenGl_TextFormatter into Font_TextFormatter and OpenGl_TextBuilder. Font_TextFormatter can format a text independetly of OpenGl now. OpenGl_TextBuilder generates primitive array required for rendering text using OpenGl_Font instance.
This commit is contained in:
isk
bugmaster
parent
8a755387b6
commit
317d68c924
@ -11,3 +11,6 @@ Font_NameOfFont.hxx
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Font_NListOfSystemFont.hxx
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Font_NListOfSystemFont.hxx
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Font_SystemFont.cxx
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Font_SystemFont.cxx
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Font_SystemFont.hxx
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Font_SystemFont.hxx
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Font_NameOfFont.hxx
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Font_TextFormatter.hxx
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Font_TextFormatter.cxx
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@ -15,6 +15,8 @@
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#include <Font_FTFont.hxx>
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#include <Font_FTFont.hxx>
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#include <Font_FontMgr.hxx>
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#include <Font_FontMgr.hxx>
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#include <Font_TextFormatter.hxx>
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#include <TCollection_AsciiString.hxx>
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#include <TCollection_AsciiString.hxx>
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#include <TCollection_HAsciiString.hxx>
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#include <TCollection_HAsciiString.hxx>
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@ -255,3 +257,25 @@ float Font_FTFont::AdvanceY (const Standard_Utf32Char theUCharNext)
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}
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}
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return fromFTPoints<float> (myKernAdvance.y + myFTFace->glyph->advance.y);
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return fromFTPoints<float> (myKernAdvance.y + myFTFace->glyph->advance.y);
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}
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}
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// =======================================================================
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// function : BoundingBox
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// purpose :
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// =======================================================================
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Font_FTFont::Rect Font_FTFont::BoundingBox (const NCollection_String& theString,
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const Graphic3d_HorizontalTextAlignment theAlignX,
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const Graphic3d_VerticalTextAlignment theAlignY)
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{
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Font_TextFormatter aFormatter;
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aFormatter.SetupAlignment (theAlignX, theAlignY);
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aFormatter.Reset();
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aFormatter.Append (theString, *this);
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aFormatter.Format();
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Rect aBndBox;
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aFormatter.BndBox (aBndBox);
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return aBndBox;
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}
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@ -16,11 +16,13 @@
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#ifndef _Font_FTFont_H__
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#ifndef _Font_FTFont_H__
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#define _Font_FTFont_H__
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#define _Font_FTFont_H__
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#include <NCollection_Vec2.hxx>
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#include <NCollection_String.hxx>
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#include <Font_FTLibrary.hxx>
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#include <Image_PixMap.hxx>
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#include <Font_FontAspect.hxx>
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#include <Font_FontAspect.hxx>
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#include <Font_FTLibrary.hxx>
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#include <Graphic3d_HorizontalTextAlignment.hxx>
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#include <Graphic3d_VerticalTextAlignment.hxx>
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#include <Image_PixMap.hxx>
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#include <NCollection_String.hxx>
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#include <NCollection_Vec2.hxx>
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//! Wrapper over FreeType font.
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//! Wrapper over FreeType font.
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//! Notice that this class uses internal buffers for loaded glyphs
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//! Notice that this class uses internal buffers for loaded glyphs
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@ -38,6 +40,11 @@ public:
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float Top;
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float Top;
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float Bottom;
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float Bottom;
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NCollection_Vec2<float> TopLeft() const
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{
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return NCollection_Vec2<float> (Left, Top);
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}
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NCollection_Vec2<float>& TopLeft (NCollection_Vec2<float>& theVec) const
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NCollection_Vec2<float>& TopLeft (NCollection_Vec2<float>& theVec) const
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{
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{
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theVec.x() = Left;
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theVec.x() = Left;
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@ -66,6 +73,16 @@ public:
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return theVec;
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return theVec;
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}
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}
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float Width () const
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{
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return Right - Left;
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}
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float Height () const
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{
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return Top - Bottom;
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}
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};
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};
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public:
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public:
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@ -178,6 +195,13 @@ public:
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theRect.Bottom = float(myFTFace->glyph->bitmap_top - (int )aBitmap.rows);
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theRect.Bottom = float(myFTFace->glyph->bitmap_top - (int )aBitmap.rows);
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}
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}
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//! Computes bounding box of the given text using plain-text formatter (Font_TextFormatter).
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//! Note that bounding box takes into account the text alignment options.
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//! Its corners are relative to the text alignment anchor point, their coordinates can be negative.
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Standard_EXPORT Rect BoundingBox (const NCollection_String& theString,
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const Graphic3d_HorizontalTextAlignment theAlignX,
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const Graphic3d_VerticalTextAlignment theAlignY);
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protected:
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protected:
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//! Convert value to 26.6 fixed-point format for FT library API.
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//! Convert value to 26.6 fixed-point format for FT library API.
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308
src/Font/Font_TextFormatter.cxx
Normal file
308
src/Font/Font_TextFormatter.cxx
Normal file
@ -0,0 +1,308 @@
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// Created on: 2013-01-29
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// Created by: Kirill GAVRILOV
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// Copyright (c) 2013-2014 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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#include <Font_TextFormatter.hxx>
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namespace
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{
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typedef NCollection_Vec2<Standard_ShortReal> Vec2f;
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//! Auxiliary function to translate corners by the vector.
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inline void move (NCollection_Vector< Vec2f >& theCorners,
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const Vec2f& theMoveVec,
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Standard_Integer theCharLower,
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const Standard_Integer theCharUpper)
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{
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for(; theCharLower <= theCharUpper; ++theCharLower)
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{
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theCorners.ChangeValue (theCharLower) += theMoveVec;
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}
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}
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//! Auxiliary function to translate corners in vertical direction.
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inline void moveY (NCollection_Vector<Vec2f>& theCorners,
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const Standard_ShortReal theMoveVec,
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Standard_Integer theCharLower,
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const Standard_Integer theCharUpper)
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{
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for(; theCharLower <= theCharUpper; ++theCharLower)
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{
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theCorners.ChangeValue (theCharLower).y() += theMoveVec;
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}
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}
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//! Apply floor to vector components.
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//! @param theVec - vector to change (by reference!)
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//! @return modified vector
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inline Vec2f& floor (Vec2f& theVec)
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{
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theVec.x() = std::floor (theVec.x());
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theVec.y() = std::floor (theVec.y());
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return theVec;
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}
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}
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// =======================================================================
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// function : Font_TextFormatter
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// purpose :
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// =======================================================================
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Font_TextFormatter::Font_TextFormatter()
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: myAlignX (Graphic3d_HTA_LEFT),
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myAlignY (Graphic3d_VTA_TOP),
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myTabSize (8),
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//
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myPen (0.0f, 0.0f),
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myRectsNb (0),
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myLineSpacing (0.0f),
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myAscender (0.0f),
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myIsFormatted (false),
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//
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myLinesNb (0),
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myRectLineStart (0),
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myRectWordStart (0),
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myNewLineNb(0),
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myPenCurrLine (0.0f),
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myBndTop (0.0f),
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myBndWidth (0.0f),
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myMoveVec (0.0f, 0.0f)
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{
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//
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}
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// =======================================================================
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// function : SetupAlignment
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// purpose :
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// =======================================================================
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void Font_TextFormatter::SetupAlignment (const Graphic3d_HorizontalTextAlignment theAlignX,
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const Graphic3d_VerticalTextAlignment theAlignY)
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{
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myAlignX = theAlignX;
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myAlignY = theAlignY;
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}
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// =======================================================================
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// function : Reset
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// purpose :
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// =======================================================================
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void Font_TextFormatter::Reset()
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{
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myIsFormatted = false;
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myString.Clear();
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myPen.x() = myPen.y() = 0.0f;
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myRectsNb = 0;
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myLineSpacing = myAscender = 0.0f;
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myCorners.Clear();
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myNewLines.Clear();
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}
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// =======================================================================
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// function : Append
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// purpose :
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// =======================================================================
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void Font_TextFormatter::Append (const NCollection_String& theString,
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Font_FTFont& theFont)
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{
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if (theString.IsEmpty())
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{
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return;
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}
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myAscender = Max (myAscender, theFont.Ascender());
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myLineSpacing = Max (myLineSpacing, theFont.LineSpacing());
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myString += theString;
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int aSymbolsCounter = 0; // special counter to process tabulation symbols
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// first pass - render all symbols using associated font on single ZERO baseline
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for (NCollection_Utf8Iter anIter = theString.Iterator(); *anIter != 0;)
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{
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const Standard_Utf32Char aCharThis = *anIter;
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const Standard_Utf32Char aCharNext = *++anIter;
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if (aCharThis == '\x0D' // CR (carriage return)
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|| aCharThis == '\a' // BEL (alarm)
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|| aCharThis == '\f' // FF (form feed) NP (new page)
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|| aCharThis == '\b' // BS (backspace)
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|| aCharThis == '\v') // VT (vertical tab)
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{
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continue; // skip unsupported carriage control codes
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}
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else if (aCharThis == '\x0A') // LF (line feed, new line)
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{
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aSymbolsCounter = 0;
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myNewLines.Append (myPen.x());
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continue; // will be processed on second pass
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}
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else if (aCharThis == ' ')
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{
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++aSymbolsCounter;
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myPen.x() += theFont.AdvanceX (' ', aCharNext);
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continue;
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}
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else if (aCharThis == '\t')
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{
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const Standard_Integer aSpacesNum = (myTabSize - (aSymbolsCounter - 1) % myTabSize);
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myPen.x() += theFont.AdvanceX (' ', aCharNext) * Standard_ShortReal(aSpacesNum);
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aSymbolsCounter += aSpacesNum;
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continue;
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}
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++aSymbolsCounter;
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myCorners.Append (myPen);
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myPen.x() += theFont.AdvanceX (aCharThis, aCharNext);
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++myRectsNb;
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}
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}
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// =======================================================================
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// function : newLine
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// purpose :
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// =======================================================================
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void Font_TextFormatter::newLine (const Standard_Integer theLastRect)
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{
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if (myRectLineStart >= myRectsNb)
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{
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++myLinesNb;
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myPenCurrLine -= myLineSpacing;
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return;
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}
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myMoveVec.y() = myPenCurrLine;
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switch (myAlignX)
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{
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default:
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case Graphic3d_HTA_LEFT:
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{
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myMoveVec.x() = (myNewLineNb > 0) ? -myNewLines.Value (myNewLineNb - 1) : 0.0f;
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break;
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}
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case Graphic3d_HTA_RIGHT:
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{
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myMoveVec.x() = (myNewLineNb < myNewLines.Length())
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? -myNewLines.Value (myNewLineNb)
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: -myPen.x();
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break;
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}
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case Graphic3d_HTA_CENTER:
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{
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const Standard_ShortReal aFrom = (myNewLineNb > 0)
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? myNewLines.Value (myNewLineNb - 1)
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: 0.0f;
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const Standard_ShortReal aTo = (myNewLineNb < myNewLines.Length())
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? myNewLines.Value (myNewLineNb)
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: myPen.x();
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myMoveVec.x() = -0.5f * (aFrom + aTo);
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break;
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}
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}
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move (myCorners, myMoveVec, myRectLineStart, theLastRect);
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++myLinesNb;
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myPenCurrLine -= myLineSpacing;
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myRectLineStart = myRectWordStart = theLastRect + 1;
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}
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// =======================================================================
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// function : Format
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// purpose :
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// =======================================================================
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void Font_TextFormatter::Format()
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{
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if (myRectsNb == 0 || myIsFormatted)
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{
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return;
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}
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myIsFormatted = true;
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myLinesNb = myRectLineStart = myRectWordStart = 0;
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myBndTop = 0.0f;
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myBndWidth = 0.0f;
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myMoveVec.x() = myMoveVec.y() = 0.0f;
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// split text into lines and apply horizontal alignment
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myPenCurrLine = -myAscender;
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Standard_Integer aRectIter = 0;
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myNewLineNb = 0;
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Standard_ShortReal aMaxLineWidth = -1.0f;
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for (NCollection_Utf8Iter anIter = myString.Iterator(); *anIter != 0; ++anIter)
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{
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const Standard_Utf32Char aCharThis = *anIter;
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if (aCharThis == '\x0D' // CR (carriage return)
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|| aCharThis == '\a' // BEL (alarm)
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|| aCharThis == '\f' // FF (form feed) NP (new page)
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|| aCharThis == '\b' // BS (backspace)
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|| aCharThis == '\v') // VT (vertical tab)
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{
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continue; // skip unsupported carriage control codes
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}
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else if (aCharThis == '\x0A') // LF (line feed, new line)
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{
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// calculate max line width
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if (myNewLineNb == 0)
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{
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aMaxLineWidth = myNewLines.Value(0);
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}
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else
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{
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aMaxLineWidth = Max (aMaxLineWidth, myNewLines.Value (myNewLineNb) - myNewLines.Value (myNewLineNb - 1));
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}
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const Standard_Integer aLastRect = aRectIter - 1; // last rect on current line
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newLine (aLastRect);
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++myNewLineNb;
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continue;
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}
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else if (aCharThis == ' '
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|| aCharThis == '\t')
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{
|
||||||
|
myRectWordStart = aRectIter;
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
++aRectIter;
|
||||||
|
}
|
||||||
|
|
||||||
|
// If only one line
|
||||||
|
if (aMaxLineWidth < 0.0f)
|
||||||
|
{
|
||||||
|
aMaxLineWidth = myPen.x();
|
||||||
|
}
|
||||||
|
else // Consider last line
|
||||||
|
{
|
||||||
|
aMaxLineWidth = Max (aMaxLineWidth, myPen.x() - myNewLines.Value (myNewLineNb - 1));
|
||||||
|
}
|
||||||
|
|
||||||
|
myBndWidth = aMaxLineWidth;
|
||||||
|
|
||||||
|
// move last line
|
||||||
|
newLine (myRectsNb - 1);
|
||||||
|
|
||||||
|
// apply vertical alignment style
|
||||||
|
if (myAlignY == Graphic3d_VTA_BOTTOM)
|
||||||
|
{
|
||||||
|
myBndTop = -myLineSpacing - myPenCurrLine;
|
||||||
|
moveY (myCorners, myBndTop, 0, myRectsNb - 1);
|
||||||
|
}
|
||||||
|
else if (myAlignY == Graphic3d_VTA_CENTER)
|
||||||
|
{
|
||||||
|
myBndTop = 0.5f * (myLineSpacing * Standard_ShortReal(myLinesNb));
|
||||||
|
moveY (myCorners, myBndTop, 0, myRectsNb - 1);
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -13,25 +13,20 @@
|
|||||||
// Alternatively, this file may be used under the terms of Open CASCADE
|
// Alternatively, this file may be used under the terms of Open CASCADE
|
||||||
// commercial license or contractual agreement.
|
// commercial license or contractual agreement.
|
||||||
|
|
||||||
#ifndef _OpenGl_TextFormatter_H__
|
#ifndef Font_TextFormatter_Header
|
||||||
#define _OpenGl_TextFormatter_H__
|
#define Font_TextFormatter_Header
|
||||||
|
|
||||||
#include <OpenGl_Font.hxx>
|
#include <Font_FTFont.hxx>
|
||||||
#include <OpenGl_VertexBufferEditor.hxx>
|
#include <NCollection_DataMap.hxx>
|
||||||
|
#include <NCollection_Vector.hxx>
|
||||||
#include <Graphic3d_HorizontalTextAlignment.hxx>
|
|
||||||
#include <Graphic3d_VerticalTextAlignment.hxx>
|
|
||||||
|
|
||||||
#include <NCollection_String.hxx>
|
|
||||||
|
|
||||||
//! This class intended to prepare formatted text.
|
//! This class intended to prepare formatted text.
|
||||||
class OpenGl_TextFormatter : public Standard_Transient
|
class Font_TextFormatter
|
||||||
{
|
{
|
||||||
|
|
||||||
public:
|
public:
|
||||||
|
|
||||||
//! Default constructor.
|
//! Default constructor.
|
||||||
Standard_EXPORT OpenGl_TextFormatter();
|
Standard_EXPORT Font_TextFormatter();
|
||||||
|
|
||||||
//! Setup alignment style.
|
//! Setup alignment style.
|
||||||
Standard_EXPORT void SetupAlignment (const Graphic3d_HorizontalTextAlignment theAlignX,
|
Standard_EXPORT void SetupAlignment (const Graphic3d_HorizontalTextAlignment theAlignX,
|
||||||
@ -41,24 +36,30 @@ public:
|
|||||||
Standard_EXPORT void Reset();
|
Standard_EXPORT void Reset();
|
||||||
|
|
||||||
//! Render specified text to inner buffer.
|
//! Render specified text to inner buffer.
|
||||||
Standard_EXPORT void Append (const Handle(OpenGl_Context)& theCtx,
|
Standard_EXPORT void Append (const NCollection_String& theString,
|
||||||
const NCollection_String& theString,
|
Font_FTFont& theFont);
|
||||||
OpenGl_Font& theFont);
|
|
||||||
|
|
||||||
//! Perform formatting on the buffered text.
|
//! Perform formatting on the buffered text.
|
||||||
//! Should not be called more than once after initialization!
|
//! Should not be called more than once after initialization!
|
||||||
Standard_EXPORT void Format();
|
Standard_EXPORT void Format();
|
||||||
|
|
||||||
//! Retrieve formatting results.
|
//! Returns specific glyph rectangle.
|
||||||
Standard_EXPORT void Result (NCollection_Vector<GLuint>& theTextures,
|
inline const NCollection_Vec2<Standard_ShortReal>& TopLeft (const Standard_Integer theIndex) const
|
||||||
NCollection_Vector< NCollection_Handle <NCollection_Vector <OpenGl_Vec2> > >& theVertsPerTexture,
|
{
|
||||||
NCollection_Vector< NCollection_Handle <NCollection_Vector <OpenGl_Vec2> > >& theTCrdsPerTexture) const;
|
return myCorners.Value (theIndex);
|
||||||
|
}
|
||||||
|
|
||||||
//! Retrieve formatting results.
|
//! Returns current rendering string.
|
||||||
Standard_EXPORT void Result (const Handle(OpenGl_Context)& theCtx,
|
inline const NCollection_String& String() const
|
||||||
NCollection_Vector<GLuint>& theTextures,
|
{
|
||||||
NCollection_Vector<Handle(OpenGl_VertexBuffer)>& theVertsPerTexture,
|
return myString;
|
||||||
NCollection_Vector<Handle(OpenGl_VertexBuffer)>& theTCrdsPerTexture) const;
|
}
|
||||||
|
|
||||||
|
//! Returns tab size.
|
||||||
|
inline Standard_Integer TabSize() const
|
||||||
|
{
|
||||||
|
return myTabSize;
|
||||||
|
}
|
||||||
|
|
||||||
//! @return width of formatted text.
|
//! @return width of formatted text.
|
||||||
inline Standard_ShortReal ResultWidth() const
|
inline Standard_ShortReal ResultWidth() const
|
||||||
@ -106,9 +107,10 @@ protected: //! @name configuration
|
|||||||
protected: //! @name input data
|
protected: //! @name input data
|
||||||
|
|
||||||
NCollection_String myString; //!< currently rendered text
|
NCollection_String myString; //!< currently rendered text
|
||||||
OpenGl_Vec2 myPen; //!< current pen position
|
NCollection_Vec2<Standard_ShortReal>
|
||||||
NCollection_Vector<OpenGl_Font::Tile>
|
myPen; //!< current pen position
|
||||||
myRects; //!< glyphs rectangles
|
NCollection_Vector < NCollection_Vec2<Standard_ShortReal> >
|
||||||
|
myCorners; //!< The top left corners of a formatted rectangles.
|
||||||
Standard_Integer myRectsNb; //!< rectangles number
|
Standard_Integer myRectsNb; //!< rectangles number
|
||||||
NCollection_Vector<Standard_ShortReal>
|
NCollection_Vector<Standard_ShortReal>
|
||||||
myNewLines; //!< position at LF
|
myNewLines; //!< position at LF
|
||||||
@ -116,10 +118,6 @@ protected: //! @name input data
|
|||||||
Standard_ShortReal myAscender; //!<
|
Standard_ShortReal myAscender; //!<
|
||||||
bool myIsFormatted; //!< formatting state
|
bool myIsFormatted; //!< formatting state
|
||||||
|
|
||||||
protected:
|
|
||||||
|
|
||||||
mutable OpenGl_VertexBufferEditor<OpenGl_Vec2> myVboEditor;
|
|
||||||
|
|
||||||
protected: //! @name temporary variables for formatting routines
|
protected: //! @name temporary variables for formatting routines
|
||||||
|
|
||||||
Standard_Integer myLinesNb; //!< overall (new)lines number (including splitting by width limit)
|
Standard_Integer myLinesNb; //!< overall (new)lines number (including splitting by width limit)
|
||||||
@ -128,18 +126,10 @@ protected: //! @name temporary variables for formatting routines
|
|||||||
Standard_Integer myNewLineNb;
|
Standard_Integer myNewLineNb;
|
||||||
|
|
||||||
Standard_ShortReal myPenCurrLine; //!< current baseline position
|
Standard_ShortReal myPenCurrLine; //!< current baseline position
|
||||||
Standard_ShortReal myLineLeft; //!< left x position of first glyph on line before formatting applied
|
|
||||||
Standard_ShortReal myLineTail;
|
|
||||||
Standard_ShortReal myBndTop;
|
Standard_ShortReal myBndTop;
|
||||||
Standard_ShortReal myBndWidth;
|
Standard_ShortReal myBndWidth;
|
||||||
OpenGl_Vec2 myMoveVec; //!< local variable
|
NCollection_Vec2<Standard_ShortReal>
|
||||||
|
myMoveVec; //!< local variable
|
||||||
public:
|
|
||||||
|
|
||||||
DEFINE_STANDARD_RTTI(OpenGl_TextFormatter, Standard_Transient) // Type definition
|
|
||||||
|
|
||||||
};
|
};
|
||||||
|
|
||||||
DEFINE_STANDARD_HANDLE(OpenGl_TextFormatter, Standard_Transient)
|
#endif // Font_TextFormatter_Header
|
||||||
|
|
||||||
#endif // _OpenGl_TextFormatter_H__
|
|
||||||
114
src/OpenGl/FILES
114
src/OpenGl/FILES
@ -12,8 +12,58 @@ OpenGl_AspectMarker.cxx
|
|||||||
OpenGl_AspectMarker.hxx
|
OpenGl_AspectMarker.hxx
|
||||||
OpenGl_AspectText.cxx
|
OpenGl_AspectText.cxx
|
||||||
OpenGl_AspectText.hxx
|
OpenGl_AspectText.hxx
|
||||||
OpenGl_AVIWriter.cxx
|
OpenGl_Group.hxx
|
||||||
|
OpenGl_Group.cxx
|
||||||
|
OpenGl_Structure.hxx
|
||||||
|
OpenGl_Structure.cxx
|
||||||
|
OpenGl_StructureShadow.hxx
|
||||||
|
OpenGl_StructureShadow.cxx
|
||||||
|
OpenGl_Element.hxx
|
||||||
|
OpenGl_Element.cxx
|
||||||
|
OpenGl_Text.hxx
|
||||||
|
OpenGl_Text.cxx
|
||||||
|
OpenGl_PointSprite.hxx
|
||||||
|
OpenGl_PointSprite.cxx
|
||||||
|
OpenGl_PrimitiveArray.hxx
|
||||||
|
OpenGl_PrimitiveArray.cxx
|
||||||
|
OpenGl_Workspace.hxx
|
||||||
|
OpenGl_Workspace.cxx
|
||||||
|
OpenGl_Workspace_2.cxx
|
||||||
|
OpenGl_Workspace_5.cxx
|
||||||
|
OpenGl_View.hxx
|
||||||
|
OpenGl_View.cxx
|
||||||
|
OpenGl_View_2.cxx
|
||||||
|
OpenGl_Light.hxx
|
||||||
|
OpenGl_Trihedron.hxx
|
||||||
|
OpenGl_Trihedron.cxx
|
||||||
|
OpenGl_GraduatedTrihedron.hxx
|
||||||
|
OpenGl_GraduatedTrihedron.cxx
|
||||||
|
OpenGl_Matrix.hxx
|
||||||
|
OpenGl_Matrix.cxx
|
||||||
|
OpenGl_CView.hxx
|
||||||
|
OpenGl_NamedStatus.hxx
|
||||||
|
OpenGl_TextParam.hxx
|
||||||
|
OpenGl_PrinterContext.hxx
|
||||||
|
OpenGl_PrinterContext.cxx
|
||||||
|
OpenGl_LineAttributes.hxx
|
||||||
|
OpenGl_LineAttributes.cxx
|
||||||
|
OpenGl_Window.hxx
|
||||||
|
OpenGl_Window.cxx
|
||||||
|
OpenGl_Window_1.mm
|
||||||
OpenGl_AVIWriter.hxx
|
OpenGl_AVIWriter.hxx
|
||||||
|
OpenGl_AVIWriter.cxx
|
||||||
|
OpenGl_FrameBuffer.hxx
|
||||||
|
OpenGl_FrameBuffer.cxx
|
||||||
|
OpenGl_Texture.cxx
|
||||||
|
OpenGl_Texture.hxx
|
||||||
|
OpenGl_Resource.hxx
|
||||||
|
OpenGl_Resource.cxx
|
||||||
|
OpenGl_telem_util.hxx
|
||||||
|
OpenGl_telem_util.cxx
|
||||||
|
OpenGl_transform_persistence.hxx
|
||||||
|
OpenGl_Font.hxx
|
||||||
|
OpenGl_Font.cxx
|
||||||
|
OpenGl_tgl_funcs.hxx
|
||||||
OpenGl_BackgroundArray.cxx
|
OpenGl_BackgroundArray.cxx
|
||||||
OpenGl_BackgroundArray.hxx
|
OpenGl_BackgroundArray.hxx
|
||||||
OpenGl_BVHClipPrimitiveSet.cxx
|
OpenGl_BVHClipPrimitiveSet.cxx
|
||||||
@ -31,20 +81,14 @@ OpenGl_Clipping.hxx
|
|||||||
OpenGl_Context.cxx
|
OpenGl_Context.cxx
|
||||||
OpenGl_Context.hxx
|
OpenGl_Context.hxx
|
||||||
OpenGl_Context_1.mm
|
OpenGl_Context_1.mm
|
||||||
OpenGl_CView.hxx
|
|
||||||
OpenGl_Cylinder.cxx
|
OpenGl_Cylinder.cxx
|
||||||
OpenGl_Cylinder.hxx
|
OpenGl_Cylinder.hxx
|
||||||
OpenGl_Disk.cxx
|
OpenGl_Disk.cxx
|
||||||
OpenGl_Disk.hxx
|
OpenGl_Disk.hxx
|
||||||
OpenGl_Element.cxx
|
|
||||||
OpenGl_Element.hxx
|
|
||||||
OpenGl_ExtGS.hxx
|
OpenGl_ExtGS.hxx
|
||||||
|
OpenGl_GlFunctions.hxx
|
||||||
OpenGl_Flipper.cxx
|
OpenGl_Flipper.cxx
|
||||||
OpenGl_Flipper.hxx
|
OpenGl_Flipper.hxx
|
||||||
OpenGl_Font.cxx
|
|
||||||
OpenGl_Font.hxx
|
|
||||||
OpenGl_FrameBuffer.cxx
|
|
||||||
OpenGl_FrameBuffer.hxx
|
|
||||||
OpenGl_GlCore11.hxx
|
OpenGl_GlCore11.hxx
|
||||||
OpenGl_GlCore11Fwd.hxx
|
OpenGl_GlCore11Fwd.hxx
|
||||||
OpenGl_GlCore12.hxx
|
OpenGl_GlCore12.hxx
|
||||||
@ -62,9 +106,9 @@ OpenGl_GlCore41.hxx
|
|||||||
OpenGl_GlCore42.hxx
|
OpenGl_GlCore42.hxx
|
||||||
OpenGl_GlCore43.hxx
|
OpenGl_GlCore43.hxx
|
||||||
OpenGl_GlCore44.hxx
|
OpenGl_GlCore44.hxx
|
||||||
OpenGl_GlFunctions.hxx
|
OpenGl_LayerList.cxx
|
||||||
OpenGl_GraduatedTrihedron.cxx
|
OpenGl_LayerList.hxx
|
||||||
OpenGl_GraduatedTrihedron.hxx
|
OpenGl_LayerFilter.hxx
|
||||||
OpenGl_GraphicDriver.cxx
|
OpenGl_GraphicDriver.cxx
|
||||||
OpenGl_GraphicDriver.hxx
|
OpenGl_GraphicDriver.hxx
|
||||||
OpenGl_GraphicDriver_4.cxx
|
OpenGl_GraphicDriver_4.cxx
|
||||||
@ -72,33 +116,14 @@ OpenGl_GraphicDriver_7.cxx
|
|||||||
OpenGl_GraphicDriver_713.cxx
|
OpenGl_GraphicDriver_713.cxx
|
||||||
OpenGl_GraphicDriver_Export.cxx
|
OpenGl_GraphicDriver_Export.cxx
|
||||||
OpenGl_GraphicDriver_Layer.cxx
|
OpenGl_GraphicDriver_Layer.cxx
|
||||||
OpenGl_Group.cxx
|
|
||||||
OpenGl_Group.hxx
|
|
||||||
OpenGl_IndexBuffer.cxx
|
OpenGl_IndexBuffer.cxx
|
||||||
OpenGl_IndexBuffer.hxx
|
OpenGl_IndexBuffer.hxx
|
||||||
OpenGl_Layer.cxx
|
OpenGl_Layer.cxx
|
||||||
OpenGl_Layer.hxx
|
OpenGl_Layer.hxx
|
||||||
OpenGl_LayerFilter.hxx
|
|
||||||
OpenGl_LayerList.cxx
|
|
||||||
OpenGl_LayerList.hxx
|
|
||||||
OpenGl_Light.hxx
|
|
||||||
OpenGl_LineAttributes.cxx
|
|
||||||
OpenGl_LineAttributes.hxx
|
|
||||||
OpenGl_Matrix.cxx
|
|
||||||
OpenGl_Matrix.hxx
|
|
||||||
OpenGl_NamedStatus.hxx
|
|
||||||
OpenGl_PointSprite.cxx
|
|
||||||
OpenGl_PointSprite.hxx
|
|
||||||
OpenGl_PrimitiveArray.cxx
|
|
||||||
OpenGl_PrimitiveArray.hxx
|
|
||||||
OpenGl_PrinterContext.cxx
|
|
||||||
OpenGl_PrinterContext.hxx
|
|
||||||
OpenGl_Quadric.cxx
|
OpenGl_Quadric.cxx
|
||||||
OpenGl_Quadric.hxx
|
OpenGl_Quadric.hxx
|
||||||
OpenGl_RenderFilter.cxx
|
OpenGl_RenderFilter.cxx
|
||||||
OpenGl_RenderFilter.hxx
|
OpenGl_RenderFilter.hxx
|
||||||
OpenGl_Resource.cxx
|
|
||||||
OpenGl_Resource.hxx
|
|
||||||
OpenGl_Sampler.cxx
|
OpenGl_Sampler.cxx
|
||||||
OpenGl_Sampler.hxx
|
OpenGl_Sampler.hxx
|
||||||
OpenGl_SceneGeometry.cxx
|
OpenGl_SceneGeometry.cxx
|
||||||
@ -116,25 +141,8 @@ OpenGl_Sphere.cxx
|
|||||||
OpenGl_Sphere.hxx
|
OpenGl_Sphere.hxx
|
||||||
OpenGl_StencilTest.cxx
|
OpenGl_StencilTest.cxx
|
||||||
OpenGl_StencilTest.hxx
|
OpenGl_StencilTest.hxx
|
||||||
OpenGl_Structure.cxx
|
|
||||||
OpenGl_Structure.hxx
|
|
||||||
OpenGl_StructureShadow.cxx
|
|
||||||
OpenGl_StructureShadow.hxx
|
|
||||||
OpenGl_telem_util.cxx
|
|
||||||
OpenGl_telem_util.hxx
|
|
||||||
OpenGl_Text.cxx
|
|
||||||
OpenGl_Text.hxx
|
|
||||||
OpenGl_TextFormatter.cxx
|
|
||||||
OpenGl_TextFormatter.hxx
|
|
||||||
OpenGl_TextParam.hxx
|
|
||||||
OpenGl_Texture.cxx
|
|
||||||
OpenGl_Texture.hxx
|
|
||||||
OpenGl_TextureBufferArb.cxx
|
OpenGl_TextureBufferArb.cxx
|
||||||
OpenGl_TextureBufferArb.hxx
|
OpenGl_TextureBufferArb.hxx
|
||||||
OpenGl_tgl_funcs.hxx
|
|
||||||
OpenGl_transform_persistence.hxx
|
|
||||||
OpenGl_Trihedron.cxx
|
|
||||||
OpenGl_Trihedron.hxx
|
|
||||||
OpenGl_Utils.hxx
|
OpenGl_Utils.hxx
|
||||||
OpenGl_Vec.hxx
|
OpenGl_Vec.hxx
|
||||||
OpenGl_VertexBuffer.cxx
|
OpenGl_VertexBuffer.cxx
|
||||||
@ -143,14 +151,6 @@ OpenGl_VertexBuffer.lxx
|
|||||||
OpenGl_VertexBufferCompat.cxx
|
OpenGl_VertexBufferCompat.cxx
|
||||||
OpenGl_VertexBufferCompat.hxx
|
OpenGl_VertexBufferCompat.hxx
|
||||||
OpenGl_VertexBufferEditor.hxx
|
OpenGl_VertexBufferEditor.hxx
|
||||||
OpenGl_View.cxx
|
|
||||||
OpenGl_View.hxx
|
|
||||||
OpenGl_View_2.cxx
|
|
||||||
OpenGl_View_Raytrace.cxx
|
OpenGl_View_Raytrace.cxx
|
||||||
OpenGl_Window.cxx
|
OpenGl_TextBuilder.hxx
|
||||||
OpenGl_Window.hxx
|
OpenGl_TextBuilder.cxx
|
||||||
OpenGl_Window_1.mm
|
|
||||||
OpenGl_Workspace.cxx
|
|
||||||
OpenGl_Workspace.hxx
|
|
||||||
OpenGl_Workspace_2.cxx
|
|
||||||
OpenGl_Workspace_5.cxx
|
|
||||||
@ -214,14 +214,12 @@ bool OpenGl_Font::renderGlyph (const Handle(OpenGl_Context)& theCtx,
|
|||||||
// function : RenderGlyph
|
// function : RenderGlyph
|
||||||
// purpose :
|
// purpose :
|
||||||
// =======================================================================
|
// =======================================================================
|
||||||
void OpenGl_Font::RenderGlyph (const Handle(OpenGl_Context)& theCtx,
|
bool OpenGl_Font::RenderGlyph (const Handle(OpenGl_Context)& theCtx,
|
||||||
const Standard_Utf32Char theUChar,
|
const Standard_Utf32Char theUChar,
|
||||||
const Standard_Utf32Char theUCharNext,
|
Tile& theGlyph)
|
||||||
OpenGl_Font::Tile& theGlyph,
|
|
||||||
OpenGl_Vec2& thePen)
|
|
||||||
{
|
{
|
||||||
Standard_Integer aTileId = 0;
|
Standard_Integer aTileId = 0;
|
||||||
if (!myGlyphMap.Find (theUChar, aTileId))
|
if (!myGlyphMap.Find (theUChar,aTileId))
|
||||||
{
|
{
|
||||||
if (renderGlyph (theCtx, theUChar))
|
if (renderGlyph (theCtx, theUChar))
|
||||||
{
|
{
|
||||||
@ -229,19 +227,16 @@ void OpenGl_Font::RenderGlyph (const Handle(OpenGl_Context)& theCtx,
|
|||||||
}
|
}
|
||||||
else
|
else
|
||||||
{
|
{
|
||||||
thePen.x() += myFont->AdvanceX (theUChar, theUCharNext);
|
return false;
|
||||||
return;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
myGlyphMap.Bind (theUChar, aTileId);
|
myGlyphMap.Bind (theUChar, aTileId);
|
||||||
}
|
}
|
||||||
|
|
||||||
const OpenGl_Font::Tile& aTile = myTiles.Value (aTileId);
|
const OpenGl_Font::Tile& aTile = myTiles.Value (aTileId);
|
||||||
theGlyph.px.Top = thePen.y() + aTile.px.Top;
|
theGlyph.px = aTile.px;
|
||||||
theGlyph.px.Bottom = thePen.y() + aTile.px.Bottom;
|
theGlyph.uv = aTile.uv;
|
||||||
theGlyph.px.Left = thePen.x() + aTile.px.Left;
|
theGlyph.texture = aTile.texture;
|
||||||
theGlyph.px.Right = thePen.x() + aTile.px.Right;
|
|
||||||
theGlyph.uv = aTile.uv;
|
|
||||||
theGlyph.texture = aTile.texture;
|
|
||||||
|
|
||||||
thePen.x() += myFont->AdvanceX (theUChar, theUCharNext);
|
return true;
|
||||||
}
|
}
|
||||||
|
|||||||
@ -71,6 +71,12 @@ public:
|
|||||||
return myFont;
|
return myFont;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
//! @return FreeType font instance specified on construction.
|
||||||
|
inline Handle(Font_FTFont)& FTFont()
|
||||||
|
{
|
||||||
|
return myFont;
|
||||||
|
}
|
||||||
|
|
||||||
//! @return true if font was loaded successfully.
|
//! @return true if font was loaded successfully.
|
||||||
inline bool IsValid() const
|
inline bool IsValid() const
|
||||||
{
|
{
|
||||||
@ -115,18 +121,13 @@ public:
|
|||||||
return myLineSpacing;
|
return myLineSpacing;
|
||||||
}
|
}
|
||||||
|
|
||||||
//! Compute glyph rectangle at specified pen position (on baseline)
|
//! Render glyph to texture if not already.
|
||||||
//! and render it to texture if not already.
|
|
||||||
//! @param theCtx active context
|
//! @param theCtx active context
|
||||||
//! @param theUChar unicode symbol to render
|
//! @param theUChar unicode symbol to render
|
||||||
//! @param theUCharNext next symbol to compute advance with kerning when available
|
|
||||||
//! @param theGlyph computed glyph position rectangle, texture ID and UV coordinates
|
//! @param theGlyph computed glyph position rectangle, texture ID and UV coordinates
|
||||||
//! @param thePen pen position on baseline to place new glyph
|
Standard_EXPORT bool RenderGlyph (const Handle(OpenGl_Context)& theCtx,
|
||||||
Standard_EXPORT void RenderGlyph (const Handle(OpenGl_Context)& theCtx,
|
|
||||||
const Standard_Utf32Char theUChar,
|
const Standard_Utf32Char theUChar,
|
||||||
const Standard_Utf32Char theUCharNext,
|
Tile& theGlyph);
|
||||||
Tile& theGlyph,
|
|
||||||
OpenGl_Vec2& thePen);
|
|
||||||
|
|
||||||
protected:
|
protected:
|
||||||
|
|
||||||
|
|||||||
@ -466,8 +466,7 @@ void OpenGl_Text::setupMatrix (const Handle(OpenGl_PrinterContext)& thePrintCtx,
|
|||||||
anObjZ);
|
anObjZ);
|
||||||
|
|
||||||
OpenGl_Utils::Translate<GLdouble> (aModViewMat, anObjX, anObjY, anObjZ);
|
OpenGl_Utils::Translate<GLdouble> (aModViewMat, anObjX, anObjY, anObjZ);
|
||||||
OpenGl_Utils::Rotate<GLdouble> (aModViewMat, theTextAspect.Angle(), 0.0, 0.0, 1.0);
|
OpenGl_Utils::Rotate<GLdouble> (aModViewMat, theTextAspect.Angle(), 0.0, 0.0, 1.0);
|
||||||
|
|
||||||
if (!theTextAspect.IsZoomable())
|
if (!theTextAspect.IsZoomable())
|
||||||
{
|
{
|
||||||
#ifdef _WIN32
|
#ifdef _WIN32
|
||||||
@ -582,6 +581,7 @@ Handle(OpenGl_Font) OpenGl_Text::FindFont (const Handle(OpenGl_Context)& theCtx,
|
|||||||
if (!aRequestedFont.IsNull())
|
if (!aRequestedFont.IsNull())
|
||||||
{
|
{
|
||||||
aFontFt = new Font_FTFont (NULL);
|
aFontFt = new Font_FTFont (NULL);
|
||||||
|
|
||||||
if (aFontFt->Init (aRequestedFont->FontPath()->ToCString(), theHeight))
|
if (aFontFt->Init (aRequestedFont->FontPath()->ToCString(), theHeight))
|
||||||
{
|
{
|
||||||
aFont = new OpenGl_Font (aFontFt, theKey);
|
aFont = new OpenGl_Font (aFontFt, theKey);
|
||||||
@ -658,13 +658,21 @@ void OpenGl_Text::render (const Handle(OpenGl_PrinterContext)& thePrintCtx,
|
|||||||
|
|
||||||
if (myTextures.IsEmpty())
|
if (myTextures.IsEmpty())
|
||||||
{
|
{
|
||||||
OpenGl_TextFormatter aFormatter;
|
Font_TextFormatter aFormatter;
|
||||||
aFormatter.SetupAlignment (myParams.HAlign, myParams.VAlign);
|
aFormatter.SetupAlignment (myParams.HAlign, myParams.VAlign);
|
||||||
aFormatter.Reset();
|
aFormatter.Reset();
|
||||||
aFormatter.Append (theCtx, myString, *myFont.operator->());
|
|
||||||
|
aFormatter.Append (myString, *myFont->FTFont());
|
||||||
aFormatter.Format();
|
aFormatter.Format();
|
||||||
|
|
||||||
aFormatter.Result (theCtx, myTextures, myVertsVbo, myTCrdsVbo);
|
OpenGl_TextBuilder aBuilder;
|
||||||
|
aBuilder.Perform (aFormatter,
|
||||||
|
theCtx,
|
||||||
|
*myFont.operator->(),
|
||||||
|
myTextures,
|
||||||
|
myVertsVbo,
|
||||||
|
myTCrdsVbo);
|
||||||
|
|
||||||
aFormatter.BndBox (myBndBox);
|
aFormatter.BndBox (myBndBox);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|||||||
@ -20,7 +20,7 @@
|
|||||||
|
|
||||||
#include <OpenGl_AspectText.hxx>
|
#include <OpenGl_AspectText.hxx>
|
||||||
#include <OpenGl_TextParam.hxx>
|
#include <OpenGl_TextParam.hxx>
|
||||||
#include <OpenGl_TextFormatter.hxx>
|
#include <OpenGl_TextBuilder.hxx>
|
||||||
|
|
||||||
#include <TCollection_ExtendedString.hxx>
|
#include <TCollection_ExtendedString.hxx>
|
||||||
#include <Graphic3d_Vertex.hxx>
|
#include <Graphic3d_Vertex.hxx>
|
||||||
|
|||||||
221
src/OpenGl/OpenGl_TextBuilder.cxx
Normal file
221
src/OpenGl/OpenGl_TextBuilder.cxx
Normal file
@ -0,0 +1,221 @@
|
|||||||
|
// Created on: 2015-06-18
|
||||||
|
// Created by: Ilya SEVRIKOV
|
||||||
|
// Copyright (c) 2015 OPEN CASCADE SAS
|
||||||
|
//
|
||||||
|
// This file is part of Open CASCADE Technology software library.
|
||||||
|
//
|
||||||
|
// This library is free software; you can redistribute it and/or modify it under
|
||||||
|
// the terms of the GNU Lesser General Public License version 2.1 as published
|
||||||
|
// by the Free Software Foundation, with special exception defined in the file
|
||||||
|
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
|
||||||
|
// distribution for complete text of the license and disclaimer of any warranty.
|
||||||
|
//
|
||||||
|
// Alternatively, this file may be used under the terms of Open CASCADE
|
||||||
|
// commercial license or contractual agreement.
|
||||||
|
|
||||||
|
#include <OpenGl_TextBuilder.hxx>
|
||||||
|
#include <OpenGl_VertexBufferCompat.hxx>
|
||||||
|
|
||||||
|
namespace
|
||||||
|
{
|
||||||
|
//! Apply floor to vector components.
|
||||||
|
//! @param theVec - vector to change (by reference!)
|
||||||
|
//! @return modified vector
|
||||||
|
inline OpenGl_Vec2& floor (OpenGl_Vec2& theVec)
|
||||||
|
{
|
||||||
|
theVec.x() = std::floor (theVec.x());
|
||||||
|
theVec.y() = std::floor (theVec.y());
|
||||||
|
return theVec;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// =======================================================================
|
||||||
|
// function : OpenGl_TextBuilder
|
||||||
|
// purpose :
|
||||||
|
// =======================================================================
|
||||||
|
OpenGl_TextBuilder::OpenGl_TextBuilder()
|
||||||
|
{
|
||||||
|
//
|
||||||
|
}
|
||||||
|
|
||||||
|
// =======================================================================
|
||||||
|
// function : createGlyphs
|
||||||
|
// purpose :
|
||||||
|
// =======================================================================
|
||||||
|
void OpenGl_TextBuilder::createGlyphs (const Font_TextFormatter& theFormatter,
|
||||||
|
const Handle(OpenGl_Context)& theCtx,
|
||||||
|
OpenGl_Font& theFont,
|
||||||
|
NCollection_Vector<GLuint>& theTextures,
|
||||||
|
NCollection_Vector<NCollection_Handle<NCollection_Vector<OpenGl_Vec2> > >& theVertsPerTexture,
|
||||||
|
NCollection_Vector<NCollection_Handle<NCollection_Vector<OpenGl_Vec2> > >& theTCrdsPerTexture)
|
||||||
|
{
|
||||||
|
OpenGl_Vec2 aVec (0.0f, 0.0f);
|
||||||
|
|
||||||
|
theTextures.Clear();
|
||||||
|
theVertsPerTexture.Clear();
|
||||||
|
theTCrdsPerTexture.Clear();
|
||||||
|
|
||||||
|
OpenGl_Font::Tile aTile = {};
|
||||||
|
OpenGl_Vec2 aPen (0.0f, 0.0f);
|
||||||
|
Standard_Integer aRectsNb = 0;
|
||||||
|
Standard_Integer aSymbolsCounter = 0;
|
||||||
|
|
||||||
|
for (NCollection_Utf8Iter anIter = theFormatter.String().Iterator(); *anIter != 0;)
|
||||||
|
{
|
||||||
|
const Standard_Utf32Char aCharThis = *anIter;
|
||||||
|
const Standard_Utf32Char aCharNext = *++anIter;
|
||||||
|
|
||||||
|
if (aCharThis == '\x0D' // CR (carriage return)
|
||||||
|
|| aCharThis == '\a' // BEL (alarm)
|
||||||
|
|| aCharThis == '\f' // FF (form feed) NP (new page)
|
||||||
|
|| aCharThis == '\b' // BS (backspace)
|
||||||
|
|| aCharThis == '\v') // VT (vertical tab)
|
||||||
|
{
|
||||||
|
continue; // skip unsupported carriage control codes
|
||||||
|
}
|
||||||
|
else if (aCharThis == '\x0A') // LF (line feed, new line)
|
||||||
|
{
|
||||||
|
aSymbolsCounter = 0;
|
||||||
|
continue; // will be processed on second pass
|
||||||
|
}
|
||||||
|
else if (aCharThis == ' ')
|
||||||
|
{
|
||||||
|
++aSymbolsCounter;
|
||||||
|
aPen.x() += theFont.AdvanceX (' ', aCharNext);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
else if (aCharThis == '\t')
|
||||||
|
{
|
||||||
|
const Standard_Integer aSpacesNum = (theFormatter.TabSize() - (aSymbolsCounter - 1) % theFormatter.TabSize());
|
||||||
|
aPen.x() += theFont.AdvanceX (' ', aCharNext) * Standard_ShortReal(aSpacesNum);
|
||||||
|
aSymbolsCounter += aSpacesNum;
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
++aSymbolsCounter;
|
||||||
|
|
||||||
|
theFont.RenderGlyph (theCtx, aCharThis, aTile);
|
||||||
|
|
||||||
|
const OpenGl_Vec2& aTopLeft = theFormatter.TopLeft (aRectsNb);
|
||||||
|
aTile.px.Right += aTopLeft.x();
|
||||||
|
aTile.px.Left += aTopLeft.x();
|
||||||
|
aTile.px.Bottom += aTopLeft.y();
|
||||||
|
aTile.px.Top += aTopLeft.y();
|
||||||
|
const Font_FTFont::Rect& aRectUV = aTile.uv;
|
||||||
|
const GLuint aTexture = aTile.texture;
|
||||||
|
|
||||||
|
Standard_Integer aListId = 0;
|
||||||
|
for (aListId = 0; aListId < theTextures.Length(); ++aListId)
|
||||||
|
{
|
||||||
|
if (theTextures.Value (aListId) == aTexture)
|
||||||
|
{
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (aListId >= theTextures.Length())
|
||||||
|
{
|
||||||
|
theTextures.Append (aTexture);
|
||||||
|
theVertsPerTexture.Append (new NCollection_Vector<OpenGl_Vec2>());
|
||||||
|
theTCrdsPerTexture.Append (new NCollection_Vector<OpenGl_Vec2>());
|
||||||
|
}
|
||||||
|
|
||||||
|
NCollection_Vector<OpenGl_Vec2>& aVerts = *theVertsPerTexture.ChangeValue (aListId);
|
||||||
|
NCollection_Vector<OpenGl_Vec2>& aTCrds = *theTCrdsPerTexture.ChangeValue (aListId);
|
||||||
|
|
||||||
|
// apply floor on position to avoid blurring issues
|
||||||
|
// due to cross-pixel coordinates
|
||||||
|
aVerts.Append (floor(aTile.px.TopRight (aVec)));
|
||||||
|
aVerts.Append (floor(aTile.px.TopLeft (aVec)));
|
||||||
|
aVerts.Append (floor(aTile.px.BottomLeft (aVec)));
|
||||||
|
aTCrds.Append (aRectUV.TopRight (aVec));
|
||||||
|
aTCrds.Append (aRectUV.TopLeft (aVec));
|
||||||
|
aTCrds.Append (aRectUV.BottomLeft (aVec));
|
||||||
|
|
||||||
|
aVerts.Append (floor(aTile.px.BottomRight (aVec)));
|
||||||
|
aVerts.Append (floor(aTile.px.TopRight (aVec)));
|
||||||
|
aVerts.Append (floor(aTile.px.BottomLeft (aVec)));
|
||||||
|
aTCrds.Append (aRectUV.BottomRight (aVec));
|
||||||
|
aTCrds.Append (aRectUV.TopRight (aVec));
|
||||||
|
aTCrds.Append (aRectUV.BottomLeft (aVec));
|
||||||
|
|
||||||
|
++aRectsNb;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// =======================================================================
|
||||||
|
// function : CreateTextures
|
||||||
|
// purpose :
|
||||||
|
// =======================================================================
|
||||||
|
void OpenGl_TextBuilder::Perform (const Font_TextFormatter& theFormatter,
|
||||||
|
const Handle(OpenGl_Context)& theCtx,
|
||||||
|
OpenGl_Font& theFont,
|
||||||
|
NCollection_Vector<GLuint>& theTextures,
|
||||||
|
NCollection_Vector<Handle(OpenGl_VertexBuffer)>& theVertsPerTexture,
|
||||||
|
NCollection_Vector<Handle(OpenGl_VertexBuffer)>& theTCrdsPerTexture)
|
||||||
|
{
|
||||||
|
NCollection_Vector< NCollection_Handle <NCollection_Vector <OpenGl_Vec2> > > aVertsPerTexture;
|
||||||
|
NCollection_Vector< NCollection_Handle <NCollection_Vector <OpenGl_Vec2> > > aTCrdsPerTexture;
|
||||||
|
|
||||||
|
createGlyphs (theFormatter, theCtx, theFont, theTextures, aVertsPerTexture, aTCrdsPerTexture);
|
||||||
|
|
||||||
|
if (theVertsPerTexture.Length() != theTextures.Length())
|
||||||
|
{
|
||||||
|
for (Standard_Integer aTextureIter = 0; aTextureIter < theVertsPerTexture.Length(); ++aTextureIter)
|
||||||
|
{
|
||||||
|
theVertsPerTexture.Value (aTextureIter)->Release (theCtx.operator->());
|
||||||
|
theTCrdsPerTexture.Value (aTextureIter)->Release (theCtx.operator->());
|
||||||
|
}
|
||||||
|
theVertsPerTexture.Clear();
|
||||||
|
theTCrdsPerTexture.Clear();
|
||||||
|
|
||||||
|
const bool isNormalMode = theCtx->ToUseVbo();
|
||||||
|
Handle(OpenGl_VertexBuffer) aVertsVbo, aTcrdsVbo;
|
||||||
|
while (theVertsPerTexture.Length() < theTextures.Length())
|
||||||
|
{
|
||||||
|
if (isNormalMode)
|
||||||
|
{
|
||||||
|
aVertsVbo = new OpenGl_VertexBuffer();
|
||||||
|
aTcrdsVbo = new OpenGl_VertexBuffer();
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
aVertsVbo = new OpenGl_VertexBufferCompat();
|
||||||
|
aTcrdsVbo = new OpenGl_VertexBufferCompat();
|
||||||
|
}
|
||||||
|
theVertsPerTexture.Append (aVertsVbo);
|
||||||
|
theTCrdsPerTexture.Append (aTcrdsVbo);
|
||||||
|
aVertsVbo->Create (theCtx);
|
||||||
|
aTcrdsVbo->Create (theCtx);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
for (Standard_Integer aTextureIter = 0; aTextureIter < theTextures.Length(); ++aTextureIter)
|
||||||
|
{
|
||||||
|
const NCollection_Vector<OpenGl_Vec2>& aVerts = *aVertsPerTexture.Value (aTextureIter);
|
||||||
|
Handle(OpenGl_VertexBuffer)& aVertsVbo = theVertsPerTexture.ChangeValue (aTextureIter);
|
||||||
|
if (!aVertsVbo->Init (theCtx, 2, aVerts.Length(), (GLfloat* )NULL)
|
||||||
|
|| !myVboEditor.Init (theCtx, aVertsVbo))
|
||||||
|
{
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
for (Standard_Integer aVertIter = 0; aVertIter < aVerts.Length(); ++aVertIter, myVboEditor.Next())
|
||||||
|
{
|
||||||
|
myVboEditor.Value() = aVerts.Value (aVertIter);
|
||||||
|
}
|
||||||
|
myVboEditor.Flush();
|
||||||
|
|
||||||
|
const NCollection_Vector<OpenGl_Vec2>& aTCrds = *aTCrdsPerTexture.Value (aTextureIter);
|
||||||
|
Handle(OpenGl_VertexBuffer)& aTCrdsVbo = theTCrdsPerTexture.ChangeValue (aTextureIter);
|
||||||
|
if (!aTCrdsVbo->Init (theCtx, 2, aVerts.Length(), (GLfloat* )NULL)
|
||||||
|
|| !myVboEditor.Init (theCtx, aTCrdsVbo))
|
||||||
|
{
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
for (Standard_Integer aVertIter = 0; aVertIter < aVerts.Length(); ++aVertIter, myVboEditor.Next())
|
||||||
|
{
|
||||||
|
myVboEditor.Value() = aTCrds.Value (aVertIter);
|
||||||
|
}
|
||||||
|
myVboEditor.Flush();
|
||||||
|
}
|
||||||
|
myVboEditor.Init (NULL, NULL);
|
||||||
|
}
|
||||||
62
src/OpenGl/OpenGl_TextBuilder.hxx
Normal file
62
src/OpenGl/OpenGl_TextBuilder.hxx
Normal file
@ -0,0 +1,62 @@
|
|||||||
|
// Created on: 2015-06-18
|
||||||
|
// Created by: Ilya SEVRIKOV
|
||||||
|
// Copyright (c) 2015 OPEN CASCADE SAS
|
||||||
|
//
|
||||||
|
// This file is part of Open CASCADE Technology software library.
|
||||||
|
//
|
||||||
|
// This library is free software; you can redistribute it and/or modify it under
|
||||||
|
// the terms of the GNU Lesser General Public License version 2.1 as published
|
||||||
|
// by the Free Software Foundation, with special exception defined in the file
|
||||||
|
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
|
||||||
|
// distribution for complete text of the license and disclaimer of any warranty.
|
||||||
|
//
|
||||||
|
// Alternatively, this file may be used under the terms of Open CASCADE
|
||||||
|
// commercial license or contractual agreement.
|
||||||
|
|
||||||
|
#ifndef OpenGl_TextBuilder_Header
|
||||||
|
#define OpenGl_TextBuilder_Header
|
||||||
|
|
||||||
|
#include <Font_TextFormatter.hxx>
|
||||||
|
|
||||||
|
#include <OpenGl_Context.hxx>
|
||||||
|
#include <OpenGl_Font.hxx>
|
||||||
|
#include <OpenGl_VertexBuffer.hxx>
|
||||||
|
#include <OpenGl_VertexBufferEditor.hxx>
|
||||||
|
#include <OpenGl_Vec.hxx>
|
||||||
|
|
||||||
|
#include <NCollection_Vector.hxx>
|
||||||
|
#include <NCollection_Handle.hxx>
|
||||||
|
|
||||||
|
|
||||||
|
//! This class generates primitive array required for rendering textured text using OpenGl_Font instance.
|
||||||
|
class OpenGl_TextBuilder
|
||||||
|
{
|
||||||
|
public:
|
||||||
|
|
||||||
|
//! Creates empty object.
|
||||||
|
OpenGl_TextBuilder();
|
||||||
|
|
||||||
|
//! Creates texture quads for the given text.
|
||||||
|
Standard_EXPORT void Perform (const Font_TextFormatter& theFormatter,
|
||||||
|
const Handle(OpenGl_Context)& theContext,
|
||||||
|
OpenGl_Font& theFont,
|
||||||
|
NCollection_Vector<GLuint>& theTextures,
|
||||||
|
NCollection_Vector<Handle(OpenGl_VertexBuffer)>& theVertsPerTexture,
|
||||||
|
NCollection_Vector<Handle(OpenGl_VertexBuffer)>& theTCrdsPerTexture);
|
||||||
|
|
||||||
|
protected: //! @name class auxillary methods
|
||||||
|
|
||||||
|
Standard_EXPORT void createGlyphs (const Font_TextFormatter& theFormatter,
|
||||||
|
const Handle(OpenGl_Context)& theCtx,
|
||||||
|
OpenGl_Font& theFont,
|
||||||
|
NCollection_Vector<GLuint>& theTextures,
|
||||||
|
NCollection_Vector< NCollection_Handle < NCollection_Vector <OpenGl_Vec2> > >& theVertsPerTexture,
|
||||||
|
NCollection_Vector< NCollection_Handle < NCollection_Vector <OpenGl_Vec2> > >& theTCrdsPerTexture);
|
||||||
|
|
||||||
|
protected: //! @name class auxillary fields
|
||||||
|
|
||||||
|
NCollection_Vector<OpenGl_Font::Tile> myTileRects;
|
||||||
|
OpenGl_VertexBufferEditor<OpenGl_Vec2> myVboEditor;
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif // OpenGl_TextBuilder_Header
|
||||||
@ -1,459 +0,0 @@
|
|||||||
// Created on: 2013-01-29
|
|
||||||
// Created by: Kirill GAVRILOV
|
|
||||||
// Copyright (c) 2013-2014 OPEN CASCADE SAS
|
|
||||||
//
|
|
||||||
// This file is part of Open CASCADE Technology software library.
|
|
||||||
//
|
|
||||||
// This library is free software; you can redistribute it and/or modify it under
|
|
||||||
// the terms of the GNU Lesser General Public License version 2.1 as published
|
|
||||||
// by the Free Software Foundation, with special exception defined in the file
|
|
||||||
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
|
|
||||||
// distribution for complete text of the license and disclaimer of any warranty.
|
|
||||||
//
|
|
||||||
// Alternatively, this file may be used under the terms of Open CASCADE
|
|
||||||
// commercial license or contractual agreement.
|
|
||||||
|
|
||||||
#include <OpenGl_TextFormatter.hxx>
|
|
||||||
|
|
||||||
#include <OpenGl_VertexBufferCompat.hxx>
|
|
||||||
|
|
||||||
#include <cmath>
|
|
||||||
|
|
||||||
namespace
|
|
||||||
{
|
|
||||||
|
|
||||||
//! Auxiliary function to translate rectangle by the vector.
|
|
||||||
inline void move (Font_FTFont::Rect& theRect,
|
|
||||||
const OpenGl_Vec2& theVec)
|
|
||||||
{
|
|
||||||
theRect.Left += theVec.x();
|
|
||||||
theRect.Right += theVec.x();
|
|
||||||
theRect.Top += theVec.y();
|
|
||||||
theRect.Bottom += theVec.y();
|
|
||||||
}
|
|
||||||
|
|
||||||
//! Auxiliary function to translate rectangles by the vector.
|
|
||||||
inline void move (NCollection_Vector<OpenGl_Font::Tile>& theRects,
|
|
||||||
const OpenGl_Vec2& theMoveVec,
|
|
||||||
Standard_Integer theCharLower,
|
|
||||||
const Standard_Integer theCharUpper)
|
|
||||||
{
|
|
||||||
for(; theCharLower <= theCharUpper; ++theCharLower)
|
|
||||||
{
|
|
||||||
Font_FTFont::Rect& aRect = theRects.ChangeValue (theCharLower).px;
|
|
||||||
move (aRect, theMoveVec);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
//! Auxiliary function to translate rectangles in horizontal direction.
|
|
||||||
/*inline void moveX (NCollection_Vector<OpenGl_Font::Tile>& theRects,
|
|
||||||
const Standard_ShortReal theMoveVec,
|
|
||||||
Standard_Integer theCharLower,
|
|
||||||
const Standard_Integer theCharUpper)
|
|
||||||
{
|
|
||||||
for (; theCharLower <= theCharUpper; ++theCharLower)
|
|
||||||
{
|
|
||||||
Font_FTFont::Rect& aRect = theRects.ChangeValue (theCharLower).px;
|
|
||||||
aRect.Left += theMoveVec;
|
|
||||||
aRect.Right += theMoveVec;
|
|
||||||
}
|
|
||||||
}*/
|
|
||||||
|
|
||||||
//! Auxiliary function to translate rectangles in vertical direction.
|
|
||||||
inline void moveY (NCollection_Vector<OpenGl_Font::Tile>& theRects,
|
|
||||||
const Standard_ShortReal theMoveVec,
|
|
||||||
Standard_Integer theCharLower,
|
|
||||||
const Standard_Integer theCharUpper)
|
|
||||||
{
|
|
||||||
for(; theCharLower <= theCharUpper; ++theCharLower)
|
|
||||||
{
|
|
||||||
Font_FTFont::Rect& aRect = theRects.ChangeValue (theCharLower).px;
|
|
||||||
aRect.Top += theMoveVec;
|
|
||||||
aRect.Bottom += theMoveVec;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
//! Apply floor to vector components.
|
|
||||||
//! @param theVec - vector to change (by reference!)
|
|
||||||
//! @return modified vector
|
|
||||||
inline OpenGl_Vec2& floor (OpenGl_Vec2& theVec)
|
|
||||||
{
|
|
||||||
theVec.x() = std::floor (theVec.x());
|
|
||||||
theVec.y() = std::floor (theVec.y());
|
|
||||||
return theVec;
|
|
||||||
}
|
|
||||||
|
|
||||||
};
|
|
||||||
|
|
||||||
|
|
||||||
// =======================================================================
|
|
||||||
// function : OpenGl_TextFormatter
|
|
||||||
// purpose :
|
|
||||||
// =======================================================================
|
|
||||||
OpenGl_TextFormatter::OpenGl_TextFormatter()
|
|
||||||
: myAlignX (Graphic3d_HTA_LEFT),
|
|
||||||
myAlignY (Graphic3d_VTA_TOP),
|
|
||||||
myTabSize (8),
|
|
||||||
//
|
|
||||||
myPen (0.0f, 0.0f),
|
|
||||||
myRectsNb (0),
|
|
||||||
myLineSpacing (0.0f),
|
|
||||||
myAscender (0.0f),
|
|
||||||
myIsFormatted (false),
|
|
||||||
//
|
|
||||||
myLinesNb (0),
|
|
||||||
myRectLineStart (0),
|
|
||||||
myRectWordStart (0),
|
|
||||||
myNewLineNb(0),
|
|
||||||
myPenCurrLine (0.0f),
|
|
||||||
myLineLeft (0.0f),
|
|
||||||
myLineTail (0.0f),
|
|
||||||
myBndTop (0.0f),
|
|
||||||
myBndWidth (0.0f),
|
|
||||||
myMoveVec (0.0f, 0.0f)
|
|
||||||
{
|
|
||||||
//
|
|
||||||
}
|
|
||||||
|
|
||||||
// =======================================================================
|
|
||||||
// function : SetupAlignment
|
|
||||||
// purpose :
|
|
||||||
// =======================================================================
|
|
||||||
void OpenGl_TextFormatter::SetupAlignment (const Graphic3d_HorizontalTextAlignment theAlignX,
|
|
||||||
const Graphic3d_VerticalTextAlignment theAlignY)
|
|
||||||
{
|
|
||||||
myAlignX = theAlignX;
|
|
||||||
myAlignY = theAlignY;
|
|
||||||
}
|
|
||||||
|
|
||||||
// =======================================================================
|
|
||||||
// function : Reset
|
|
||||||
// purpose :
|
|
||||||
// =======================================================================
|
|
||||||
void OpenGl_TextFormatter::Reset()
|
|
||||||
{
|
|
||||||
myIsFormatted = false;
|
|
||||||
myString.Clear();
|
|
||||||
myPen.x() = myPen.y() = 0.0f;
|
|
||||||
myRectsNb = 0;
|
|
||||||
myLineSpacing = myAscender = 0.0f;
|
|
||||||
myRects.Clear();
|
|
||||||
myNewLines.Clear();
|
|
||||||
}
|
|
||||||
|
|
||||||
// =======================================================================
|
|
||||||
// function : Result
|
|
||||||
// purpose :
|
|
||||||
// =======================================================================
|
|
||||||
void OpenGl_TextFormatter::Result (NCollection_Vector<GLuint>& theTextures,
|
|
||||||
NCollection_Vector< NCollection_Handle <NCollection_Vector <OpenGl_Vec2> > >& theVertsPerTexture,
|
|
||||||
NCollection_Vector< NCollection_Handle <NCollection_Vector <OpenGl_Vec2> > >& theTCrdsPerTexture) const
|
|
||||||
{
|
|
||||||
OpenGl_Vec2 aVec (0.0f, 0.0f);
|
|
||||||
theTextures.Clear();
|
|
||||||
theVertsPerTexture.Clear();
|
|
||||||
theTCrdsPerTexture.Clear();
|
|
||||||
for (Standard_Integer aRectIter = 0; aRectIter < myRectsNb; ++aRectIter)
|
|
||||||
{
|
|
||||||
const Font_FTFont::Rect& aRect = myRects.Value (aRectIter).px;
|
|
||||||
const Font_FTFont::Rect& aRectUV = myRects.Value (aRectIter).uv;
|
|
||||||
const GLuint aTexture = myRects.Value (aRectIter).texture;
|
|
||||||
|
|
||||||
Standard_Integer aListId = 0;
|
|
||||||
for (aListId = 0; aListId < theTextures.Length(); ++aListId)
|
|
||||||
{
|
|
||||||
if (theTextures.Value (aListId) == aTexture)
|
|
||||||
{
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
if (aListId >= theTextures.Length())
|
|
||||||
{
|
|
||||||
theTextures.Append (aTexture);
|
|
||||||
theVertsPerTexture.Append (new NCollection_Vector<OpenGl_Vec2>());
|
|
||||||
theTCrdsPerTexture.Append (new NCollection_Vector<OpenGl_Vec2>());
|
|
||||||
}
|
|
||||||
|
|
||||||
NCollection_Vector<OpenGl_Vec2>& aVerts = *theVertsPerTexture.ChangeValue (aListId);
|
|
||||||
NCollection_Vector<OpenGl_Vec2>& aTCrds = *theTCrdsPerTexture.ChangeValue (aListId);
|
|
||||||
|
|
||||||
// apply floor on position to avoid blurring issues
|
|
||||||
// due to cross-pixel coordinates
|
|
||||||
aVerts.Append (floor(aRect.TopRight (aVec)));
|
|
||||||
aVerts.Append (floor(aRect.TopLeft (aVec)));
|
|
||||||
aVerts.Append (floor(aRect.BottomLeft (aVec)));
|
|
||||||
aTCrds.Append (aRectUV.TopRight (aVec));
|
|
||||||
aTCrds.Append (aRectUV.TopLeft (aVec));
|
|
||||||
aTCrds.Append (aRectUV.BottomLeft (aVec));
|
|
||||||
|
|
||||||
aVerts.Append (floor(aRect.BottomRight (aVec)));
|
|
||||||
aVerts.Append (floor(aRect.TopRight (aVec)));
|
|
||||||
aVerts.Append (floor(aRect.BottomLeft (aVec)));
|
|
||||||
aTCrds.Append (aRectUV.BottomRight (aVec));
|
|
||||||
aTCrds.Append (aRectUV.TopRight (aVec));
|
|
||||||
aTCrds.Append (aRectUV.BottomLeft (aVec));
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// =======================================================================
|
|
||||||
// function : Result
|
|
||||||
// purpose :
|
|
||||||
// =======================================================================
|
|
||||||
void OpenGl_TextFormatter::Result (const Handle(OpenGl_Context)& theCtx,
|
|
||||||
NCollection_Vector<GLuint>& theTextures,
|
|
||||||
NCollection_Vector<Handle(OpenGl_VertexBuffer)>& theVertsPerTexture,
|
|
||||||
NCollection_Vector<Handle(OpenGl_VertexBuffer)>& theTCrdsPerTexture) const
|
|
||||||
{
|
|
||||||
NCollection_Vector< NCollection_Handle <NCollection_Vector <OpenGl_Vec2> > > aVertsPerTexture;
|
|
||||||
NCollection_Vector< NCollection_Handle <NCollection_Vector <OpenGl_Vec2> > > aTCrdsPerTexture;
|
|
||||||
Result (theTextures, aVertsPerTexture, aTCrdsPerTexture);
|
|
||||||
|
|
||||||
if (theVertsPerTexture.Length() != theTextures.Length())
|
|
||||||
{
|
|
||||||
for (Standard_Integer aTextureIter = 0; aTextureIter < theVertsPerTexture.Length(); ++aTextureIter)
|
|
||||||
{
|
|
||||||
theVertsPerTexture.Value (aTextureIter)->Release (theCtx.operator->());
|
|
||||||
theTCrdsPerTexture.Value (aTextureIter)->Release (theCtx.operator->());
|
|
||||||
}
|
|
||||||
theVertsPerTexture.Clear();
|
|
||||||
theTCrdsPerTexture.Clear();
|
|
||||||
|
|
||||||
const bool isNormalMode = theCtx->ToUseVbo();
|
|
||||||
Handle(OpenGl_VertexBuffer) aVertsVbo, aTcrdsVbo;
|
|
||||||
while (theVertsPerTexture.Length() < theTextures.Length())
|
|
||||||
{
|
|
||||||
if (isNormalMode)
|
|
||||||
{
|
|
||||||
aVertsVbo = new OpenGl_VertexBuffer();
|
|
||||||
aTcrdsVbo = new OpenGl_VertexBuffer();
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
aVertsVbo = new OpenGl_VertexBufferCompat();
|
|
||||||
aTcrdsVbo = new OpenGl_VertexBufferCompat();
|
|
||||||
}
|
|
||||||
theVertsPerTexture.Append (aVertsVbo);
|
|
||||||
theTCrdsPerTexture.Append (aTcrdsVbo);
|
|
||||||
aVertsVbo->Create (theCtx);
|
|
||||||
aTcrdsVbo->Create (theCtx);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
for (Standard_Integer aTextureIter = 0; aTextureIter < theTextures.Length(); ++aTextureIter)
|
|
||||||
{
|
|
||||||
const NCollection_Vector<OpenGl_Vec2>& aVerts = *aVertsPerTexture.Value (aTextureIter);
|
|
||||||
Handle(OpenGl_VertexBuffer)& aVertsVbo = theVertsPerTexture.ChangeValue (aTextureIter);
|
|
||||||
if (!aVertsVbo->Init (theCtx, 2, aVerts.Length(), (GLfloat* )NULL)
|
|
||||||
|| !myVboEditor.Init (theCtx, aVertsVbo))
|
|
||||||
{
|
|
||||||
continue;
|
|
||||||
}
|
|
||||||
for (Standard_Integer aVertIter = 0; aVertIter < aVerts.Length(); ++aVertIter, myVboEditor.Next())
|
|
||||||
{
|
|
||||||
myVboEditor.Value() = aVerts.Value (aVertIter);
|
|
||||||
}
|
|
||||||
myVboEditor.Flush();
|
|
||||||
|
|
||||||
const NCollection_Vector<OpenGl_Vec2>& aTCrds = *aTCrdsPerTexture.Value (aTextureIter);
|
|
||||||
Handle(OpenGl_VertexBuffer)& aTCrdsVbo = theTCrdsPerTexture.ChangeValue (aTextureIter);
|
|
||||||
if (!aTCrdsVbo->Init (theCtx, 2, aVerts.Length(), (GLfloat* )NULL)
|
|
||||||
|| !myVboEditor.Init (theCtx, aTCrdsVbo))
|
|
||||||
{
|
|
||||||
continue;
|
|
||||||
}
|
|
||||||
for (Standard_Integer aVertIter = 0; aVertIter < aVerts.Length(); ++aVertIter, myVboEditor.Next())
|
|
||||||
{
|
|
||||||
myVboEditor.Value() = aTCrds.Value (aVertIter);
|
|
||||||
}
|
|
||||||
myVboEditor.Flush();
|
|
||||||
}
|
|
||||||
myVboEditor.Init (NULL, NULL);
|
|
||||||
}
|
|
||||||
|
|
||||||
// =======================================================================
|
|
||||||
// function : Append
|
|
||||||
// purpose :
|
|
||||||
// =======================================================================
|
|
||||||
void OpenGl_TextFormatter::Append (const Handle(OpenGl_Context)& theCtx,
|
|
||||||
const NCollection_String& theString,
|
|
||||||
OpenGl_Font& theFont)
|
|
||||||
{
|
|
||||||
if (theString.IsEmpty())
|
|
||||||
{
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
myAscender = Max (myAscender, theFont.Ascender());
|
|
||||||
myLineSpacing = Max (myLineSpacing, theFont.LineSpacing());
|
|
||||||
myString += theString;
|
|
||||||
|
|
||||||
int aSymbolsCounter = 0; // special counter to process tabulation symbols
|
|
||||||
|
|
||||||
// first pass - render all symbols using associated font on single ZERO baseline
|
|
||||||
OpenGl_Font::Tile aTile;
|
|
||||||
memset (&aTile, 0, sizeof(aTile));
|
|
||||||
for (NCollection_Utf8Iter anIter = theString.Iterator(); *anIter != 0;)
|
|
||||||
{
|
|
||||||
const Standard_Utf32Char aCharThis = *anIter;
|
|
||||||
const Standard_Utf32Char aCharNext = *++anIter;
|
|
||||||
|
|
||||||
if (aCharThis == '\x0D' // CR (carriage return)
|
|
||||||
|| aCharThis == '\a' // BEL (alarm)
|
|
||||||
|| aCharThis == '\f' // FF (form feed) NP (new page)
|
|
||||||
|| aCharThis == '\b' // BS (backspace)
|
|
||||||
|| aCharThis == '\v') // VT (vertical tab)
|
|
||||||
{
|
|
||||||
continue; // skip unsupported carriage control codes
|
|
||||||
}
|
|
||||||
else if (aCharThis == '\x0A') // LF (line feed, new line)
|
|
||||||
{
|
|
||||||
aSymbolsCounter = 0;
|
|
||||||
myNewLines.Append (myPen.x());
|
|
||||||
continue; // will be processed on second pass
|
|
||||||
}
|
|
||||||
else if (aCharThis == ' ')
|
|
||||||
{
|
|
||||||
++aSymbolsCounter;
|
|
||||||
myPen.x() += theFont.AdvanceX (' ', aCharNext);
|
|
||||||
continue;
|
|
||||||
}
|
|
||||||
else if (aCharThis == '\t')
|
|
||||||
{
|
|
||||||
const Standard_Integer aSpacesNum = (myTabSize - (aSymbolsCounter - 1) % myTabSize);
|
|
||||||
myPen.x() += theFont.AdvanceX (' ', aCharNext) * Standard_ShortReal(aSpacesNum);
|
|
||||||
aSymbolsCounter += aSpacesNum;
|
|
||||||
continue;
|
|
||||||
}
|
|
||||||
|
|
||||||
++aSymbolsCounter;
|
|
||||||
theFont.RenderGlyph (theCtx,
|
|
||||||
aCharThis, aCharNext,
|
|
||||||
aTile, myPen);
|
|
||||||
myRects.Append (aTile);
|
|
||||||
|
|
||||||
++myRectsNb;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// =======================================================================
|
|
||||||
// function : newLine
|
|
||||||
// purpose :
|
|
||||||
// =======================================================================
|
|
||||||
void OpenGl_TextFormatter::newLine (const Standard_Integer theLastRect)
|
|
||||||
{
|
|
||||||
if (myRectLineStart >= myRectsNb)
|
|
||||||
{
|
|
||||||
++myLinesNb;
|
|
||||||
myPenCurrLine -= myLineSpacing;
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
myMoveVec.y() = myPenCurrLine;
|
|
||||||
switch (myAlignX)
|
|
||||||
{
|
|
||||||
default:
|
|
||||||
case Graphic3d_HTA_LEFT:
|
|
||||||
{
|
|
||||||
myMoveVec.x() = (myNewLineNb > 0) ? -myNewLines.Value (myNewLineNb - 1) : 0.0f;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
case Graphic3d_HTA_RIGHT:
|
|
||||||
{
|
|
||||||
myMoveVec.x() = (myNewLineNb < myNewLines.Length())
|
|
||||||
? -myNewLines.Value (myNewLineNb)
|
|
||||||
: -myPen.x();
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
case Graphic3d_HTA_CENTER:
|
|
||||||
{
|
|
||||||
const Standard_ShortReal aFrom = (myNewLineNb > 0)
|
|
||||||
? myNewLines.Value (myNewLineNb - 1)
|
|
||||||
: 0.0f;
|
|
||||||
const Standard_ShortReal aTo = (myNewLineNb < myNewLines.Length())
|
|
||||||
? myNewLines.Value (myNewLineNb)
|
|
||||||
: myPen.x();
|
|
||||||
myMoveVec.x() = -0.5f * (aFrom + aTo);
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
move (myRects, myMoveVec, myRectLineStart, theLastRect);
|
|
||||||
|
|
||||||
++myLinesNb;
|
|
||||||
myPenCurrLine -= myLineSpacing;
|
|
||||||
myRectLineStart = myRectWordStart = theLastRect + 1;
|
|
||||||
if (myRectLineStart < myRectsNb)
|
|
||||||
{
|
|
||||||
myLineLeft = myRects.Value (myRectLineStart).px.Left;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// =======================================================================
|
|
||||||
// function : Format
|
|
||||||
// purpose :
|
|
||||||
// =======================================================================
|
|
||||||
void OpenGl_TextFormatter::Format()
|
|
||||||
{
|
|
||||||
if (myRectsNb == 0 || myIsFormatted)
|
|
||||||
{
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
myIsFormatted = true;
|
|
||||||
myLinesNb = myRectLineStart = myRectWordStart = 0;
|
|
||||||
myLineLeft = 0.0f;
|
|
||||||
myLineTail = 0.0f;
|
|
||||||
myBndTop = 0.0f;
|
|
||||||
myBndWidth = 0.0f;
|
|
||||||
myMoveVec.x() = myMoveVec.y() = 0.0f;
|
|
||||||
|
|
||||||
// split text into lines and apply horizontal alignment
|
|
||||||
myPenCurrLine = -myAscender;
|
|
||||||
Standard_Integer aRectIter = 0;
|
|
||||||
myNewLineNb = 0;
|
|
||||||
for (NCollection_Utf8Iter anIter = myString.Iterator(); *anIter != 0; ++anIter)
|
|
||||||
{
|
|
||||||
const Standard_Utf32Char aCharThis = *anIter;
|
|
||||||
if (aCharThis == '\x0D' // CR (carriage return)
|
|
||||||
|| aCharThis == '\a' // BEL (alarm)
|
|
||||||
|| aCharThis == '\f' // FF (form feed) NP (new page)
|
|
||||||
|| aCharThis == '\b' // BS (backspace)
|
|
||||||
|| aCharThis == '\v') // VT (vertical tab)
|
|
||||||
{
|
|
||||||
continue; // skip unsupported carriage control codes
|
|
||||||
}
|
|
||||||
else if (aCharThis == '\x0A') // LF (line feed, new line)
|
|
||||||
{
|
|
||||||
const Standard_Integer aLastRect = aRectIter - 1; // last rect on current line
|
|
||||||
newLine (aLastRect);
|
|
||||||
++myNewLineNb;
|
|
||||||
continue;
|
|
||||||
}
|
|
||||||
else if (aCharThis == ' '
|
|
||||||
|| aCharThis == '\t')
|
|
||||||
{
|
|
||||||
myRectWordStart = aRectIter;
|
|
||||||
continue;
|
|
||||||
}
|
|
||||||
|
|
||||||
Standard_ShortReal aWidth = myRects.Value (aRectIter).px.Right - myLineLeft;
|
|
||||||
myBndWidth = Max (myBndWidth, aWidth);
|
|
||||||
|
|
||||||
++aRectIter;
|
|
||||||
}
|
|
||||||
|
|
||||||
// move last line
|
|
||||||
newLine (myRectsNb - 1);
|
|
||||||
|
|
||||||
// apply vertical alignment style
|
|
||||||
if (myAlignY == Graphic3d_VTA_BOTTOM)
|
|
||||||
{
|
|
||||||
myBndTop = -myLineSpacing - myPenCurrLine;
|
|
||||||
moveY (myRects, myBndTop, 0, myRectsNb - 1);
|
|
||||||
}
|
|
||||||
else if (myAlignY == Graphic3d_VTA_CENTER)
|
|
||||||
{
|
|
||||||
myBndTop = 0.5f * (myLineSpacing * Standard_ShortReal(myLinesNb));
|
|
||||||
moveY (myRects, myBndTop, 0, myRectsNb - 1);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
Loading…
x
Reference in New Issue
Block a user