Hi,

  I have tested :
int GLPainter::drawText(const Eigen::Vector3d &pos, const QString &string,
const QFont &font)
  And I have problems :
  - The text isn't drawn ;
  - The 2nd text (using drawText(QPoint, QString)) isn't drawn correctly ;
  - the atoms are displayed as if there is no z-buffer ...
  - the begin() and end() methods are not available (not present in the
Painter virtual class)


============================================
Code :
In a paint() method : class WmTool : public Tool
============================================

QString msg="A message" ;
glColor3f( 1.0, 1.0, 1.0 ) ;

// 1st test with :
// -->
m_wPainter->drawText( QPoint(10,20), msg ) ; // Work fine.
// <--

// 2nd test with :
// -->
QFont myFont( "Times", 32, QFont::Bold ) ;
m_wPainter->drawText( Vector3d(10,40,25), msg, myFont ) ; // No display
m_wPainter->drawText( QPoint(10,20), msg ) ; // Work but the display is
different (bold,
// and I don't recognize the family font).
// <--

// 3rd test with :
// -->
// #include "glpainter_p.h" : inaccessible
GLPainter *wGLPainter=dynamic_cast<GLPainter*>(m_wPainter) ; // Not compile

QFont myFont( "Times", 32, QFont::Bold ) ;
wGLPainter->begin() ; // inaccessible (not present the Painter class)
wGLPainter->drawText( Vector3d(10,40,25), msg, myFont ) ; // not compile
wGLPainter->end() ; // inaccessible (not present the Painter class)
// <--

============================================
============================================

Help,
Regards,
Mickael Gadroy


2011/3/18 Marcus D. Hanwell <[email protected]>

> Hi,
>
> On Fri, Mar 18, 2011 at 11:34 AM, Mickaël Gadroy
> <[email protected]> wrote:
> > Hi all,
> >
> >   I would like to know if the use of :
> > int GLPainter::drawText ( const Eigen::Vector3d &pos, const QString
> &string
> > )
> >   is "equals to" (performance, issuie known ...) (with the fonts support)
> :
> > int GLPainter::drawText(const Eigen::Vector3d &pos, const QString
> &string,
> > const QFont &font)
> >   ?
> >
> >   I'm curious because I've never seen used of the 2nd method (and it
> works
> > differently). It might be interesting to change style depending on the
> > features (autooptool, clickmeasuretool ...). And I wanted to use it to
> > increase the size of the default font. Do you think this is the correct
> > method for this ?
> >
> The second signature is new, changing the fonts, size etc is likely to
> perform worse as more glyphs will need to be generated. Changing color
> should not hit this, but font face, size, style etc would.
>
> Marcus
>

<<attachment: bug_drawtext_with_comment.png>>

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