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0030537: Visualization - wrapping text in font text formatter

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Font_TextFormatter inherits Standard_Transient, now it is given as a handle in functions.
Graphic3d_Text - extended with Font_TextFormatter to be able to have it filled out of text render. If it is not defined here, the default text formatter of context is used.
OpenGl_Context - has default Font_TextFormatter for rendering OpenGl_Text.
AIS_TextLabel extending with Font_TextFormatter to prepare test case for text wrapping.
Prs3d_Text returns created graphic text to be able to manage it outside.
This commit is contained in:
nds
2020-09-07 11:10:32 +03:00
parent a516227511
commit 60f7b22536
14 changed files with 538 additions and 210 deletions
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38
src/StdPrs/StdPrs_BRepTextBuilder.cxx
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@@ -15,12 +15,14 @@
#include <StdPrs_BRepTextBuilder.hxx>
#include <Font_TextFormatter.hxx>
// =======================================================================
// Function : Perfrom
// Purpose :
// =======================================================================
TopoDS_Shape StdPrs_BRepTextBuilder::Perform (StdPrs_BRepFont& theFont,
const Font_TextFormatter& theFormatter,
const Handle(Font_TextFormatter)& theFormatter,
const gp_Ax3& thePenLoc)
{
gp_Trsf aTrsf;
@@ -31,34 +33,20 @@ TopoDS_Shape StdPrs_BRepTextBuilder::Perform (StdPrs_BRepFont& theFont,
myBuilder.MakeCompound (aResult);
Standard_Integer aSymbolCounter = 0;
Standard_Real aScaleUnits = theFont.Scale();
for (NCollection_Utf8Iter anIter = theFormatter.String().Iterator(); *anIter != 0; ++anIter)
Standard_Real aScaleUnits = theFont.Scale();
for (Font_TextFormatter::Iterator aFormatterIt (*theFormatter, Font_TextFormatter::IterationFilter_ExcludeInvisible);
aFormatterIt.More(); aFormatterIt.Next())
{
const Standard_Utf32Char aCharCurr = *anIter;
if (aCharCurr == '\x0D' // CR (carriage return)
|| aCharCurr == '\a' // BEL (alarm)
|| aCharCurr == '\f' // FF (form feed) NP (new page)
|| aCharCurr == '\b' // BS (backspace)
|| aCharCurr == '\v' // VT (vertical tab)
|| aCharCurr == ' '
|| aCharCurr == '\t'
|| aCharCurr == '\n')
{
continue; // skip unsupported carriage control codes
}
const NCollection_Vec2<Standard_ShortReal>& aCorner = theFormatter->BottomLeft (aFormatterIt.SymbolPosition());
const NCollection_Vec2<Standard_ShortReal>& aCorner = theFormatter.TopLeft (aSymbolCounter);
aPen.SetCoord (aCorner.x() * aScaleUnits, aCorner.y() * aScaleUnits, 0.0);
aGlyphShape = theFont.RenderGlyph (aCharCurr);
aGlyphShape = theFont.RenderGlyph (aFormatterIt.Symbol());
if (!aGlyphShape.IsNull())
{
aTrsf.SetTranslation (gp_Vec (aPen));
aGlyphShape.Move (aTrsf);
myBuilder.Add (aResult, aGlyphShape);
}
++aSymbolCounter;
}
aTrsf.SetTransformation (thePenLoc, gp_Ax3 (gp::XOY()));
@@ -77,13 +65,13 @@ TopoDS_Shape StdPrs_BRepTextBuilder::Perform (StdPrs_BRepFont&
const Graphic3d_HorizontalTextAlignment theHAlign,
const Graphic3d_VerticalTextAlignment theVAlign)
{
Font_TextFormatter aFormatter;
Handle(Font_TextFormatter) aFormatter = new Font_TextFormatter();
aFormatter.Reset();
aFormatter.SetupAlignment (theHAlign, theVAlign);
aFormatter->Reset();
aFormatter->SetupAlignment (theHAlign, theVAlign);
aFormatter.Append (theString, *(reinterpret_cast<Font_FTFont*> (&theFont)));
aFormatter.Format();
aFormatter->Append (theString, *(reinterpret_cast<Font_FTFont*> (&theFont)));
aFormatter->Format();
return Perform (theFont, aFormatter, thePenLoc);
}

9
src/StdPrs/StdPrs_BRepTextBuilder.hxx
View File

@@ -25,13 +25,12 @@ class StdPrs_BRepTextBuilder
{
public:
//! Render text as BRep shape.
//! @param theString text in UTF-8 encoding
//! @param theFormatter formatter which defines aligned text
//! @param thePenLoc start position and orientation on the baseline
//! @param theFormatter formatter which defines alignment for the text
//! @return result shape with pen transformation applied as shape location
Standard_EXPORT TopoDS_Shape Perform (StdPrs_BRepFont& theFont,
const Font_TextFormatter& theFormatter,
const gp_Ax3& thePenLoc = gp_Ax3());
Standard_EXPORT TopoDS_Shape Perform (StdPrs_BRepFont& theFont,
const Handle(Font_TextFormatter)& theFormatter,
const gp_Ax3& thePenLoc = gp_Ax3());
//! Render text as BRep shape.
//! @param theString text in UTF-8 encoding
//! @param thePenLoc start position and orientation on the baseline