115 lines
2.8 KiB
C++
115 lines
2.8 KiB
C++
/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file buttonNode.cxx
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* @author drose
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* @date 2002-03-12
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*/
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#include "buttonNode.h"
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#include "config_device.h"
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#include "dataNodeTransmit.h"
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#include "buttonEventList.h"
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#include "dcast.h"
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TypeHandle ButtonNode::_type_handle;
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/**
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*
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*/
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ButtonNode::
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ButtonNode(ClientBase *client, const string &device_name) :
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DataNode(device_name)
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{
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_button_events_output = define_output("button_events", ButtonEventList::get_class_type());
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nassertv(client != (ClientBase *)NULL);
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PT(ClientDevice) device =
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client->get_device(ClientButtonDevice::get_class_type(), device_name);
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if (device == (ClientDevice *)NULL) {
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device_cat.warning()
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<< "Unable to open button device " << device_name << "\n";
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return;
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}
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if (!device->is_of_type(ClientButtonDevice::get_class_type())) {
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device_cat.error()
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<< "Inappropriate device type " << device->get_type()
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<< " created; expected a ClientButtonDevice.\n";
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return;
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}
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_device = device;
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}
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/**
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*
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*/
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ButtonNode::
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ButtonNode(InputDevice *device) :
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DataNode(device->get_name()),
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_device(device)
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{
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_button_events_output = define_output("button_events", ButtonEventList::get_class_type());
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_device = device;
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}
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/**
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*
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*/
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ButtonNode::
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~ButtonNode() {
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// When the _button pointer destructs, the ClientButtonDevice disconnects
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// itself from the ClientBase, and everything that needs to get turned off
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// does. Magic.
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}
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/**
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*
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*/
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void ButtonNode::
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output(ostream &out) const {
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DataNode::output(out);
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if (_device != (InputDevice *)NULL) {
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out << " (";
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_device->output_buttons(out);
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out << ")";
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}
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}
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/**
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*
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*/
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void ButtonNode::
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write(ostream &out, int indent_level) const {
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DataNode::write(out, indent_level);
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if (_device != (InputDevice *)NULL) {
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_device->write_buttons(out, indent_level + 2);
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}
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}
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/**
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* The virtual implementation of transmit_data(). This function receives an
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* array of input parameters and should generate an array of output
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* parameters. The input parameters may be accessed with the index numbers
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* returned by the define_input() calls that were made earlier (presumably in
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* the constructor); likewise, the output parameters should be set with the
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* index numbers returned by the define_output() calls.
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*/
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void ButtonNode::
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do_transmit_data(DataGraphTraverser *, const DataNodeTransmit &,
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DataNodeTransmit &output) {
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if (is_valid()) {
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PT(ButtonEventList) bel = _device->get_button_events();
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output.set_data(_button_events_output, EventParameter(bel));
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}
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}
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