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+// Filename: virtualMouse.cxx
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+// Created by: drose (13Dec01)
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+//
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+////////////////////////////////////////////////////////////////////
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+//
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+// PANDA 3D SOFTWARE
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+// Copyright (c) 2001, Disney Enterprises, Inc. All rights reserved
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+//
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+// All use of this software is subject to the terms of the Panda 3d
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+// Software license. You should have received a copy of this license
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+// along with this source code; you will also find a current copy of
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+// the license at http://www.panda3d.org/license.txt .
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+//
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+// To contact the maintainers of this program write to
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+// [email protected] .
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+//
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+////////////////////////////////////////////////////////////////////
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+
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+#include "virtualMouse.h"
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+
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+TypeHandle VirtualMouse::_type_handle;
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+
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+TypeHandle VirtualMouse::_pixel_xyz_type;
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+TypeHandle VirtualMouse::_xyz_type;
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+TypeHandle VirtualMouse::_button_events_type;
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+
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+
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+////////////////////////////////////////////////////////////////////
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+// Function: VirtualMouse::Constructor
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+// Access: Published
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+// Description:
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+////////////////////////////////////////////////////////////////////
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+VirtualMouse::
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+VirtualMouse(const string &name) :
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+ DataNode(name)
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+{
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+ _pixel_xyz = new Vec3DataTransition(LPoint3f(0.0f, 0.0f, 0.0f));
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+ _xyz = new Vec3DataTransition(LPoint3f(0.0f, 0.0f, 0.0f));
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+ _button_events = new ButtonEventDataTransition();
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+
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+ _got_mouse_attrib.set_transition(_pixel_xyz_type, _pixel_xyz);
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+ _got_mouse_attrib.set_transition(_xyz_type, _xyz);
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+ _got_mouse_attrib.set_transition(_button_events_type, _button_events);
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+
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+ _no_mouse_attrib.set_transition(_button_events_type, _button_events);
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+
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+ _mouse_x = 0;
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+ _mouse_y = 0;
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+ _win_width = 100;
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+ _win_height = 100;
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+ _mouse_on = false;
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+ _next_button_events = new ButtonEventDataTransition();
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+}
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+
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+////////////////////////////////////////////////////////////////////
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+// Function: VirtualMouse::set_mouse_pos
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+// Access: Published
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+// Description: Sets the current mouse pixel location, where (0,0) is
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+// the upper left, and (width-1, height-1) is the lower
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+// right pixel of the virtual window.
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+////////////////////////////////////////////////////////////////////
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+void VirtualMouse::
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+set_mouse_pos(int x, int y) {
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+ _mouse_x = x;
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+ _mouse_y = y;
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+}
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+
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+////////////////////////////////////////////////////////////////////
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+// Function: VirtualMouse::set_window_size
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+// Access: Published
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+// Description: Sets the size of the "window" in which the mouse
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+// rolls. This changes the meaning of the values passed
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+// to set_mouse_pos().
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+////////////////////////////////////////////////////////////////////
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+void VirtualMouse::
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+set_window_size(int width, int height) {
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+ _win_width = width;
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+ _win_height = height;
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+}
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+
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+////////////////////////////////////////////////////////////////////
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+// Function: VirtualMouse::set_mouse_on
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+// Access: Published
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+// Description: Sets whether the mouse should appear to be within the
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+// window or not. If this is true, the mouse is within
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+// the window; if false, the mouse is not within the
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+// window (and set_mouse_pos() means nothing).
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+////////////////////////////////////////////////////////////////////
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+void VirtualMouse::
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+set_mouse_on(bool flag) {
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+ _mouse_on = flag;
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+}
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+
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+////////////////////////////////////////////////////////////////////
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+// Function: VirtualMouse::press_button
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+// Access: Published
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+// Description: Simulates a mouse or keyboard button being depressed.
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+// This should be followed up by a call to
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+// release_button() sometime later (possibly
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+// immediately).
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+////////////////////////////////////////////////////////////////////
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+void VirtualMouse::
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+press_button(ButtonHandle button) {
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+ _next_button_events->push_back(ButtonEvent(button, true));
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+}
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+
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+////////////////////////////////////////////////////////////////////
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+// Function: VirtualMouse::release_button
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+// Access: Published
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+// Description: Simulates the button being released. This should
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+// follow a previous call to press_button().
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+////////////////////////////////////////////////////////////////////
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+void VirtualMouse::
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+release_button(ButtonHandle button) {
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+ _next_button_events->push_back(ButtonEvent(button, false));
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+}
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+
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+////////////////////////////////////////////////////////////////////
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+// Function: VirtualMouse::transmit_data
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+// Access: Public, Virtual
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+// Description:
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+////////////////////////////////////////////////////////////////////
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+void VirtualMouse::
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+transmit_data(AllTransitionsWrapper &data) {
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+ // Swap in the button events, and clear them for next time.
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+ _button_events->swap(_next_button_events);
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+ _next_button_events->clear();
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+
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+ if (_mouse_on) {
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+ // The mouse is within the window.
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+ _pixel_xyz->set_value(LPoint3f(_mouse_x, _mouse_y, 0.0f));
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+
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+ // Scale to range [-1,1]
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+ float xf = (2.0f * (float)_mouse_x) / (float)_win_width - 1.0f;
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+ float yf = 1.0f - (2.0f * (float)_mouse_y) / (float)_win_height;
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+ _xyz->set_value(LPoint3f(xf, yf, 0.0f));
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+ data = _got_mouse_attrib;
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+
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+ } else {
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+ // The mouse isn't within the window.
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+ data = _no_mouse_attrib;
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+ }
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+}
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+
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+////////////////////////////////////////////////////////////////////
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+// Function: VirtualMouse::init_type
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+// Access: Public
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+// Description:
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+////////////////////////////////////////////////////////////////////
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+void VirtualMouse::
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+init_type() {
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+ DataNode::init_type();
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+ register_type(_type_handle, "VirtualMouse",
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+ DataNode::get_class_type());
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+
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+ Vec3DataTransition::init_type();
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+ register_data_transition(_pixel_xyz_type, "PixelXYZ",
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+ Vec3DataTransition::get_class_type());
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+ register_data_transition(_xyz_type, "XYZ",
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+ Vec3DataTransition::get_class_type());
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+ ButtonEventDataTransition::init_type();
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+ register_data_transition(_button_events_type, "ButtonEvents",
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+ ButtonEventDataTransition::get_class_type());
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+}
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David Rose