126 lines
3.9 KiB
C++
126 lines
3.9 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 virtualMouse.cxx
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* @author drose
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* @date 2002-03-12
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*/
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#include "virtualMouse.h"
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#include "dataNodeTransmit.h"
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TypeHandle VirtualMouse::_type_handle;
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/**
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*
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*/
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VirtualMouse::
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VirtualMouse(const std::string &name) :
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DataNode(name)
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{
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_pixel_xy_output = define_output("pixel_xy", EventStoreVec2::get_class_type());
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_pixel_size_output = define_output("pixel_size", EventStoreVec2::get_class_type());
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_xy_output = define_output("xy", EventStoreVec2::get_class_type());
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_button_events_output = define_output("button_events", ButtonEventList::get_class_type());
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_pixel_xy = new EventStoreVec2(LPoint2(0.0f, 0.0f));
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_pixel_size = new EventStoreVec2(LPoint2(0.0f, 0.0f));
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_xy = new EventStoreVec2(LPoint2(0.0f, 0.0f));
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_button_events = new ButtonEventList;
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_next_button_events = new ButtonEventList;
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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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}
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/**
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* Sets the current mouse pixel location, where (0,0) is the upper left, and
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* (width-1, height-1) is the lower 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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* Sets the size of the "window" in which the mouse rolls. This changes the
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* meaning of the values passed 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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* Sets whether the mouse should appear to be within the window or not. If
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* this is true, the mouse is within the window; if false, the mouse is not
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* within the 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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* Simulates a mouse or keyboard button being depressed. This should be
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* followed up by a call to 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->add_event(ButtonEvent(button, ButtonEvent::T_down));
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}
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/**
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* Simulates the button being released. This should follow a previous call to
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* 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->add_event(ButtonEvent(button, ButtonEvent::T_up));
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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 VirtualMouse::
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do_transmit_data(DataGraphTraverser *, const DataNodeTransmit &,
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DataNodeTransmit &output) {
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// Swap in the button events, and clear them for next time.
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PT(ButtonEventList) events = _button_events;
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_button_events = _next_button_events;
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_next_button_events = events;
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_next_button_events->clear();
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output.set_data(_button_events_output, EventParameter(_button_events));
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_pixel_size->set_value(LPoint2(_win_width, _win_height));
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output.set_data(_pixel_size_output, EventParameter(_pixel_size));
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if (_mouse_on) {
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// The mouse is within the window.
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_pixel_xy->set_value(LPoint2(_mouse_x, _mouse_y));
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output.set_data(_pixel_xy_output, EventParameter(_pixel_xy));
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// Normalize pixel motion to range [-1,1].
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PN_stdfloat xf = (2.0f * (PN_stdfloat)_mouse_x) / (PN_stdfloat)_win_width - 1.0f;
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PN_stdfloat yf = 1.0f - (2.0f * (PN_stdfloat)_mouse_y) / (PN_stdfloat)_win_height;
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_xy->set_value(LPoint2(xf, yf));
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output.set_data(_xy_output, EventParameter(_xy));
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}
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}
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