Exemple #1
0
void tglDraw(const TVectorRenderData &rd, const TStroke *s)
{
	assert(s);
	if (!s)
		return;

	const TStroke &stroke = *s;

	// initialize information for aaliasing
	glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	glEnable(GL_BLEND);
	glEnable(GL_LINE_SMOOTH);

	// it's necessary to do line function of pixel size ?
	glLineWidth((float)1.0);

	assert(rd.m_palette);
	TStrokeProp *prop = stroke.getProp(/*rd.m_palette*/);
	/////questo codice stava dentro tstroke::getprop/////////
	TColorStyle *style = rd.m_palette->getStyle(stroke->getStyle() /*m_imp->m_styleId*/);
	if (!style->isStrokeStyle() || style->isEnabled() == false) {
		prop = 0;
	} else {
		if (!prop || style != prop->getColorStyle()) {
			stroke->setProp(style->makeStrokeProp(stroke));
			prop = stroke->getProp();
		}
	}
	///
	//---------------------
	if (prop)
		prop->draw(rd);
	//---------------------

	tglColor(TPixel32::White);

	glDisable(GL_BLEND);
	glDisable(GL_LINE_SMOOTH);
}
void tglDraw(const TVectorRenderData &rd, const TStroke *s, bool pushAttribs) {
  assert(s);
  if (!s) return;

  TStrokeProp *prop  = 0;
  bool pushedAttribs = false;

  try {
    TColorStyleP style;
    TStroke *stroke = const_cast<TStroke *>(s);
    if (rd.m_inkCheckEnabled && s->getStyle() == rd.m_colorCheckIndex) {
      static TSolidColorStyle *redColor = new TSolidColorStyle();
      redColor->addRef();
      redColor->setMainColor(TPixel::Red);
      style = redColor;
    } else if (rd.m_tcheckEnabled) {
      static TSolidColorStyle *color = new TSolidColorStyle();
      color->addRef();
      color->setMainColor(rd.m_tCheckInk);
      style = color;
    } else
      style = rd.m_palette->getStyle(stroke->getStyle());

    if (!rd.m_show0ThickStrokes && isOThick(s) &&
        dynamic_cast<TSolidColorStyle *>(
            style.getPointer())  // This is probably to exclude
                                 // TCenterlineStrokeStyle-like styles
        && !rd.m_tcheckEnabled)  // I wonder why this?
      return;

    // const TStroke& stroke = *s;  //serve???

    assert(rd.m_palette);

    prop = s->getProp(/*rd.m_palette*/);
    /////questo codice stava dentro tstroke::getprop/////////
    if (prop) prop->getMutex()->lock();

    if (!style->isStrokeStyle() || style->isEnabled() == false) {
      if (prop) prop->getMutex()->unlock();

      prop = 0;
    } else {
      // Warning: the following pointers check is conceptually wrong - we
      // keep it because the props maintain SMART POINTER-like reference to
      // the associated style. This prevents the style from being destroyed
      // while still referenced by the prop.
      if (!prop || style.getPointer() != prop->getColorStyle()) {
        if (prop) prop->getMutex()->unlock();

        stroke->setProp(style->makeStrokeProp(stroke));
        prop = stroke->getProp();
        if (prop) prop->getMutex()->lock();
      }
    }

    //--------- draw ------------
    if (!prop) return;

    if (pushAttribs) glPushAttrib(GL_ALL_ATTRIB_BITS), pushedAttribs = true;

    bool alphaChannel = rd.m_alphaChannel, antialias = rd.m_antiAliasing;
    TVectorImagePatternStrokeProp *aux =
        dynamic_cast<TVectorImagePatternStrokeProp *>(prop);
    if (aux)  // gli image pattern vettoriali tornano in questa funzione....non
              // facendo il corpo dell'else'si evita di disegnarli due volte!
      prop->draw(rd);
    else {
      if (antialias)
        tglEnableLineSmooth(true);
      else
        tglEnableLineSmooth(false);

      if (alphaChannel) {
        GLboolean red, green, blue, alpha;
        tglGetColorMask(red, green, blue, alpha);

        // Draw RGB channels
        tglEnableBlending(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
        glColorMask(red, green, blue, GL_FALSE);
        prop->draw(rd);

        // Draw Matte channel
        tglEnableBlending(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
        glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, alpha);
        prop->draw(rd);

        glColorMask(red, green, blue, alpha);
      } else {
        tglEnableBlending(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
        prop->draw(rd);
      }
    }

    if (pushAttribs) glPopAttrib(), pushedAttribs = false;

    prop->getMutex()->unlock();
    //---------------------
  } catch (...) {
    if (prop) prop->getMutex()->unlock();
    if (pushedAttribs) glPopAttrib();
  }
}