flightgear/utils/fgpanel/FGLayeredInstrument.cxx
2022-10-20 20:29:11 +08:00

71 lines
2.1 KiB
C++

//
// Written by David Megginson, started January 2000.
// Adopted for standalone fgpanel application by Torsten Dreyer, August 2009
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
#include "GL_utils.hxx"
#include "FGLayeredInstrument.hxx"
#include "FGTexturedLayer.hxx"
FGLayeredInstrument::FGLayeredInstrument (const int x, const int y, const int w, const int h) :
FGPanelInstrument (x, y, w, h) {
}
FGLayeredInstrument::~FGLayeredInstrument () {
for (layer_list::iterator it = m_layers.begin();
it != m_layers.end();
++it) {
delete *it;
*it = 0;
}
}
void
FGLayeredInstrument::draw () {
if (test ()) {
for (unsigned int i = 0; i < m_layers.size (); ++i) {
GL_utils::instance ().glPushMatrix ();
m_layers[i]->draw ();
GL_utils::instance ().glPopMatrix ();
}
}
}
int
FGLayeredInstrument::addLayer (FGInstrumentLayer * const layer) {
const int n (m_layers.size ());
if (layer->getWidth () == -1) {
layer->setWidth (getWidth ());
}
if (layer->getHeight () == -1) {
layer->setHeight (getHeight ());
}
m_layers.push_back (layer);
return n;
}
int
FGLayeredInstrument::addLayer (const FGCroppedTexture_ptr texture, const int w, const int h) {
return addLayer (new FGTexturedLayer (texture, w, h));
}
void
FGLayeredInstrument::addTransformation (FGPanelTransformation * const transformation) {
const int layer (m_layers.size () - 1);
m_layers[layer]->addTransformation (transformation);
}