//==================================================drawBB==========================================================//
void ccHObject::drawBB(const ccColor::Rgb& col)
{
switch (m_selectionBehavior)
{
case SELECTION_AA_BBOX:
getDisplayBB_recursive(true,m_currentDisplay).draw(col);
break;
case SELECTION_FIT_BBOX: //
{
assert(getChildrenNumber() == 0);
ccGLMatrix trans;
ccBBox box = getOwnFitBB(trans); //当前版本下trans=indentity() getOwnFitBB 返回OwnBB
if (box.isValid()){
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glMultMatrixf(trans.data());
box.draw(col);
glPopMatrix();
}
}
break;
case SELECTION_IGNORED:
break;
default:
assert(false);
}
}
void ccHObject::drawBB(CC_DRAW_CONTEXT& context, const ccColor::Rgb& col)
{
QOpenGLFunctions_2_1 *glFunc = context.glFunctions<QOpenGLFunctions_2_1>();
assert(glFunc != nullptr);
if (glFunc == nullptr)
return;
glFunc->glPushAttrib(GL_LINE_BIT);
glFunc->glLineWidth(1.0f);
switch (m_selectionBehavior)
{
case SELECTION_AA_BBOX:
getDisplayBB_recursive(true, m_currentDisplay).draw(context, col);
break;
case SELECTION_FIT_BBOX:
{
//get the set of OpenGL functions (version 2.1)
QOpenGLFunctions_2_1 *glFunc = context.glFunctions<QOpenGLFunctions_2_1>();
assert( glFunc != nullptr );
if ( glFunc == nullptr )
break;
ccGLMatrix trans;
ccBBox box = getOwnFitBB(trans);
if (box.isValid())
{
glFunc->glMatrixMode(GL_MODELVIEW);
glFunc->glPushMatrix();
glFunc->glMultMatrixf(trans.data());
box.draw(context, col);
glFunc->glPopMatrix();
}
}
break;
case SELECTION_IGNORED:
break;
default:
assert(false);
}
glFunc->glPopAttrib(); //GL_LINE_BIT
}