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flightgear/src/GUI/mouse.cxx
ehofman 029dda3297 In the process of changing, adding and removing files the last few years 
there was the situation where four directories contained jst two files,
of which three directories were aircraft related, and one directory contained
test code from Curt that might be better of in SimGear anyhow.

This is just a patch to move a bunch of files to new locations. In case of
local changes to any of them you can do the following:

move replay.[ch]xx from src/Replay to src/Aircraft
move control.[ch]xx from src/Control to src/Aircraft
move ssgEntityArray.[ch]xx from src/Objects to simgear/screen

In addition it has been decided only to use .[ch]xx files in all directories
unless it's contained within an FDM specific directory, in which case the
author is free to do whatever (s)he wants.

In this repspect the following files have been renamed in src/Multiplayer:

tiny_xdr.[ch]pp has become tiny_xdr.[ch]xx
multiplaymgr.[ch]pp has become multiplaymgr.[ch]xx
2005-11-01 13:41:49 +00:00

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/**************************************************************************
* gui.cxx
*
* Written 1998 by Durk Talsma, started Juni, 1998. For the flight gear
* project.
*
* Additional mouse supported added by David Megginson, 1999.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id$
**************************************************************************/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <simgear/compiler.h>
#ifdef SG_MATH_EXCEPTION_CLASH
# include <math.h>
#endif
#ifdef HAVE_WINDOWS_H
# include <windows.h>
#endif
#include <Main/fg_os.hxx>
#if defined(FX) && defined(XMESA)
# include <GL/xmesa.h>
#endif
#include STL_STRING
#include <stdlib.h>
#include <string.h>
#include <simgear/constants.h>
#include <simgear/debug/logstream.hxx>
#include <simgear/misc/sg_path.hxx>
#include <Include/general.hxx>
#include <Aircraft/aircraft.hxx>
#include <Aircraft/controls.hxx>
#include <Airports/simple.hxx>
#include <Autopilot/auto_gui.hxx>
#include <Cockpit/panel.hxx>
#include <FDM/flight.hxx>
#include <Main/fg_init.hxx>
#include <Main/fg_props.hxx>
#include <Main/viewmgr.hxx>
#include "gui.h"
#include "gui_local.hxx"
SG_USING_STD(string);
SG_USING_STD(cout);
/* --------------------------------------------------------------------
Mouse stuff
---------------------------------------------------------------------*/
static int _mX = 0;
static int _mY = 0;
static int _savedX = 0;
static int _savedY = 0;
static int last_buttons = 0 ;
static int mouse_active = 0;
static int mouse_joystick_control = 0;
//static time_t mouse_off_time;
//static int mouse_timed_out;
// to allow returning to previous view
// on second left click in MOUSE_VIEW mode
// This has file scope so that it can be reset
// if the little rodent is moved NHV
static int _mVtoggle = 0;
static int MOUSE_XSIZE = 0;
static int MOUSE_YSIZE = 0;
// uncomment this for view to exactly follow mouse in MOUSE_VIEW mode
// else smooth out the view panning to .01 radian per frame
// see view_offset smoothing mechanism in main.cxx
#define NO_SMOOTH_MOUSE_VIEW
// uncomment following to
#define RESET_VIEW_ON_LEAVING_MOUSE_VIEW
/* --------------------------------------------------------------------
Support for mouse as control yoke (david@megginson.com)
- right button toggles between pointer and yoke
- horizontal drag with no buttons moves ailerons
- vertical drag with no buttons moves elevators
- horizontal drag with left button moves brakes (left=on)
- vertical drag with left button moves throttle (up=more)
- horizontal drag with middle button moves rudder
- vertical drag with middle button moves trim
For the *_sensitivity variables, a lower number means more sensitive.
TODO: figure out how to keep pointer from leaving window in yoke mode.
TODO: add thresholds and null zones
TODO: sensitivity should be configurable at user option.
TODO: allow differential braking (this will be useful if FlightGear
ever supports tail-draggers like the DC-3)
---------------------------------------------------------------------*/
MouseMode mouse_mode = MOUSE_POINTER;
static double aileron_sensitivity = 1.0/500.0;
static double elevator_sensitivity = 1.0/500.0;
static double brake_sensitivity = 1.0/250.0;
static double throttle_sensitivity = 1.0/250.0;
static double rudder_sensitivity = 1.0/500.0;
static double trim_sensitivity = 1.0/1000.0;
void guiInitMouse(int width, int height)
{
MOUSE_XSIZE = width;
MOUSE_YSIZE = height;
}
static inline int guiGetMouseButton(void)
{
return last_buttons;
}
static inline void guiGetMouse(int *x, int *y)
{
*x = _mX;
*y = _mY;
};
static inline int left_button( void ) {
return( last_buttons & (1 << MOUSE_BUTTON_LEFT) );
}
static inline int middle_button( void ) {
return( last_buttons & (1 << MOUSE_BUTTON_MIDDLE) );
}
static inline int right_button( void ) {
return( last_buttons & (1 << MOUSE_BUTTON_RIGHT) );
}
static inline void set_goal_view_offset( float offset )
{
globals->get_current_view()->setGoalHeadingOffset_deg(offset * SGD_RADIANS_TO_DEGREES);
}
static inline void set_view_offset( float offset )
{
globals->get_current_view()->setHeadingOffset_deg(offset * SGD_RADIANS_TO_DEGREES);
}
static inline void set_goal_view_tilt( float tilt )
{
globals->get_current_view()->setGoalPitchOffset_deg(tilt);
}
static inline void set_view_tilt( float tilt )
{
globals->get_current_view()->setPitchOffset_deg(tilt);
}
static inline float get_view_offset() {
return globals->get_current_view()->getHeadingOffset_deg() * SGD_DEGREES_TO_RADIANS;
}
static inline float get_goal_view_offset() {
return globals->get_current_view()->getGoalHeadingOffset_deg() * SGD_DEGREES_TO_RADIANS;
}
static inline void move_brake(float offset) {
globals->get_controls()->move_brake_left(offset);
globals->get_controls()->move_brake_right(offset);
}
static inline void move_throttle(float offset) {
globals->get_controls()->move_throttle(FGControls::ALL_ENGINES, offset);
}
static inline void move_rudder(float offset) {
globals->get_controls()->move_rudder(offset);
}
static inline void move_elevator_trim(float offset) {
globals->get_controls()->move_elevator_trim(offset);
}
static inline void move_aileron(float offset) {
globals->get_controls()->move_aileron(offset);
}
static inline void move_elevator(float offset) {
globals->get_controls()->move_elevator(offset);
}
static inline float get_aileron() {
return globals->get_controls()->get_aileron();
}
static inline float get_elevator() {
return globals->get_controls()->get_elevator();
}
static inline bool AP_HeadingEnabled() {
static const SGPropertyNode *heading_enabled
= fgGetNode("/autopilot/locks/heading");
return ( strcmp( heading_enabled->getStringValue(), "" ) != 0 );
}
static inline bool AP_AltitudeEnabled() {
static const SGPropertyNode *altitude_enabled
= fgGetNode("/autopilot/locks/altitude");
return ( strcmp( altitude_enabled->getStringValue(), "" ) != 0 );
}
void TurnCursorOn( void )
{
mouse_active = ~0;
#if defined(WIN32)
switch (mouse_mode) {
case MOUSE_POINTER:
fgSetMouseCursor(MOUSE_CURSOR_POINTER);
break;
case MOUSE_YOKE:
fgSetMouseCursor(MOUSE_CURSOR_CROSSHAIR);
break;
case MOUSE_VIEW:
fgSetMouseCursor(MOUSE_CURSOR_LEFTRIGHT);
break;
}
#endif
#if defined(X_CURSOR_TWEAKS)
fgWarpMouse( MOUSE_XSIZE/2, MOUSE_YSIZE/2 );
#endif
}
void TurnCursorOff( void )
{
mouse_active = 0;
#if defined(WIN32_CURSOR_TWEAKS)
fgSetMouseCursor(MOUSE_CURSOR_NONE);
#elif defined(X_CURSOR_TWEAKS)
fgWarpMouse( MOUSE_XSIZE, MOUSE_YSIZE );
#endif
}
void maybeToggleMouse( void )
{
#if defined(WIN32_CURSOR_TWEAKS_OFF)
static int first_time = ~0;
static int mouse_changed = 0;
if ( first_time ) {
if(!mouse_active) {
mouse_changed = ~mouse_changed;
TurnCursorOn();
}
} else {
if( mouse_mode != MOUSE_POINTER )
return;
if( mouse_changed ) {
mouse_changed = ~mouse_changed;
if(mouse_active) {
TurnCursorOff();
}
}
}
first_time = ~first_time;
#endif // #ifdef WIN32
}
// Call with FALSE to init and TRUE to restore
void BusyCursor( int restore )
{
static int cursor = MOUSE_CURSOR_POINTER;
if( restore ) {
fgSetMouseCursor(cursor);
} else {
cursor = fgGetMouseCursor();
#if defined(WIN32_CURSOR_TWEAKS)
TurnCursorOn();
#endif
fgSetMouseCursor( MOUSE_CURSOR_WAIT );
}
}
// Center the view offsets
void CenterView( void ) {
if( mouse_mode == MOUSE_VIEW ) {
mouse_mode = MOUSE_POINTER;
_savedX = MOUSE_XSIZE/2;
_savedY = MOUSE_YSIZE/2;
_mVtoggle = 0;
Quat0();
build_rotmatrix(GuiQuat_mat, curGuiQuat);
fgSetMouseCursor(MOUSE_CURSOR_POINTER);
// Is this necessary ??
#if defined(FG_OLD_MENU)
if( !gui_menu_on ) TurnCursorOff();
#endif
fgWarpMouse( _savedX, _savedY );
}
set_goal_view_offset(0.0);
set_view_offset(0.0);
}
//#define TRANSLATE_HUD
// temporary hack until pitch_offset is added to view pipeline
void fgTranslateHud( void ) {
#ifdef TRANSLATE_HUD
if(mouse_mode == MOUSE_VIEW) {
int ww = MOUSE_XSIZE;
int wh = MOUSE_YSIZE;
float y = 4*(_mY-(wh/2));// * ((wh/SGD_PI)*SG_RADIANS_TO_DEGREES);
float x = get_view_offset() * SG_RADIANS_TO_DEGREES;
if( x < -180 ) x += 360;
else if( x > 180 ) x -= 360;
x *= ww/90.0;
// x *= ww/180.0;
// x *= ww/360.0;
// glTranslatef( x*ww/640, y*wh/480, 0 );
glTranslatef( x*640/ww, y*480/wh, 0 );
}
#endif // TRANSLATE_HUD
}
void guiMotionFunc ( int x, int y )
{
int ww, wh, need_warp = 0;
float W, H;
double offset;
ww = MOUSE_XSIZE;
wh = MOUSE_YSIZE;
if (mouse_mode == MOUSE_POINTER) {
#if defined(FG_OLD_MENU)
// TURN MENU ON IF MOUSE AT TOP
if( y < 1 ) {
if( !gui_menu_on )
guiToggleMenu();
}
// TURN MENU OFF IF MOUSE AT BOTTOM
else if( y > wh-2 ) {
if( gui_menu_on )
guiToggleMenu();
}
#endif
puMouse ( x, y ) ;
fgRequestRedraw () ;
} else {
if( x == _mX && y == _mY)
return;
// reset left click MOUSE_VIEW toggle feature
_mVtoggle = 0;
switch (mouse_mode) {
case MOUSE_YOKE:
if( !mouse_joystick_control ) {
mouse_joystick_control = 1;
fgSetString("/sim/control-mode", "mouse");
} else {
if ( left_button() ) {
move_brake( (_mX - x) * brake_sensitivity);
move_throttle((_mY - y) * throttle_sensitivity);
} else if ( right_button() ) {
if( ! AP_HeadingEnabled() ) {
move_rudder((x - _mX) * rudder_sensitivity);
}
if( ! AP_AltitudeEnabled() ) {
move_elevator_trim((_mY - y) * trim_sensitivity);
}
} else {
if( ! AP_HeadingEnabled() ) {
move_aileron((x - _mX) * aileron_sensitivity);
}
if( ! AP_AltitudeEnabled() ) {
move_elevator((_mY - y) * elevator_sensitivity);
}
}
}
// Keep the mouse in the window.
if (x < 5 || x > ww-5 || y < 5 || y > wh-5) {
x = ww / 2;
y = wh / 2;
need_warp = 1;
}
break;
case MOUSE_VIEW:
if( y <= 0 ) {
#define CONTRAINED_MOUSE_VIEW_Y
#ifdef CONTRAINED_MOUSE_VIEW_Y
y = 1;
#else
y = wh-2;
#endif // CONTRAINED_MOUSE_VIEW_Y
need_warp = 1;
} else if( y >= wh-1) {
#ifdef CONTRAINED_MOUSE_VIEW_Y
y = wh-2;
#else
y = 1;
#endif // CONTRAINED_MOUSE_VIEW_Y
need_warp = 1;
}
// wrap MOUSE_VIEW mode cursor x position
if ( x <= 0 ) {
need_warp = 1;
x = ww-2;
} else if ( x >= ww-1 ) {
need_warp = 1;
x = 1;
}
// try to get SGD_PI movement in each half of screen
// do spherical pan
W = ww;
H = wh;
if( middle_button() ) {
trackball(lastGuiQuat,
(2.0f * _mX - W) / W,
0, //(H - 2.0f * y) / H, // 3
(2.0f * x - W) / W,
0 //(H - 2.0f * _mY) / H // 1
);
x = _mX;
y = _mY;
need_warp = 1;
} else {
trackball(lastGuiQuat,
0, //(2.0f * _mX - W) / W, // 0
(H - 2.0f * y) / H, // 3
0, //(2.0f * x - W) / W, // 2
(H - 2.0f * _mY) / H // 1
);
}
add_quats(lastGuiQuat, curGuiQuat, curGuiQuat);
build_rotmatrix(GuiQuat_mat, curGuiQuat);
// do horizontal pan
// this could be done in above quat
// but requires redoing view pipeline
offset = get_goal_view_offset();
offset += ((_mX - x) * SGD_2PI / W );
while (offset < 0.0) {
offset += SGD_2PI;
}
while (offset > SGD_2PI) {
offset -= SGD_2PI;
}
set_goal_view_offset(offset);
set_goal_view_tilt(asin( GuiQuat_mat[1][2]) * SGD_RADIANS_TO_DEGREES );
#ifdef NO_SMOOTH_MOUSE_VIEW
set_view_offset(offset);
set_view_tilt(asin( GuiQuat_mat[1][2]) * SGD_RADIANS_TO_DEGREES );
#endif
break;
default:
break;
}
}
if( need_warp)
fgWarpMouse(x, y);
// Record the new mouse position.
_mX = x;
_mY = y;
}
void guiMouseFunc(int button, int updown, int x, int y)
{
// private MOUSE_VIEW state variables
// to allow alternate left clicks in MOUSE_VIEW mode
// to toggle between current offsets and straight ahead
// uses _mVtoggle
static int _mVx, _mVy, _Vx, _Vy;
static float _quat[4];
static double _view_offset;
// Was the left button pressed?
if ( updown == MOUSE_BUTTON_DOWN ) {
if( button == MOUSE_BUTTON_LEFT)
{
switch (mouse_mode) {
case MOUSE_POINTER:
break;
case MOUSE_YOKE:
break;
case MOUSE_VIEW:
if(_mVtoggle) {
// resume previous view offsets
_mX = _mVx;
_mY = _mVy;
x = _Vx;
y = _Vy;
sgCopyVec4(curGuiQuat, _quat);
set_goal_view_offset(_view_offset);
set_goal_view_tilt(0.0);
#ifdef NO_SMOOTH_MOUSE_VIEW
set_view_offset(_view_offset);
#endif
} else {
// center view
_mVx = _mX;
_mVy = _mY;
_Vx = x;
_Vy = y;
sgCopyVec4(_quat,curGuiQuat);
x = MOUSE_XSIZE/2;
y = MOUSE_YSIZE/2;
Quat0();
_view_offset = get_goal_view_offset();
set_goal_view_offset(0.0);
set_goal_view_tilt(0.0);
#ifdef NO_SMOOTH_MOUSE_VIEW
set_view_offset(0.0);
set_view_tilt(0.0);
#endif
}
fgWarpMouse( x , y);
build_rotmatrix(GuiQuat_mat, curGuiQuat);
_mVtoggle = ~_mVtoggle;
break;
}
} else if ( button == MOUSE_BUTTON_RIGHT) {
switch (mouse_mode) {
case MOUSE_POINTER:
SG_LOG( SG_INPUT, SG_INFO, "Mouse in yoke mode" );
mouse_mode = MOUSE_YOKE;
mouse_joystick_control = 0;
_savedX = x;
_savedY = y;
// start with zero point in center of screen
_mX = MOUSE_XSIZE/2;
_mY = MOUSE_YSIZE/2;
// try to have the MOUSE_YOKE position
// reflect the current stick position
x = _mX - (int)(get_aileron() * aileron_sensitivity);
y = _mY - (int)(get_elevator() * elevator_sensitivity);
fgSetMouseCursor(MOUSE_CURSOR_CROSSHAIR);
break;
case MOUSE_YOKE:
SG_LOG( SG_INPUT, SG_INFO, "Mouse in view mode" );
mouse_mode = MOUSE_VIEW;
fgSetString("/sim/control-mode", "joystick");
// recenter cursor and reset
x = MOUSE_XSIZE/2;
y = MOUSE_YSIZE/2;
_mVtoggle = 0;
// #ifndef RESET_VIEW_ON_LEAVING_MOUSE_VIEW
Quat0();
build_rotmatrix(GuiQuat_mat, curGuiQuat);
// #endif
fgSetMouseCursor(MOUSE_CURSOR_LEFTRIGHT);
break;
case MOUSE_VIEW:
SG_LOG( SG_INPUT, SG_INFO, "Mouse in pointer mode" );
mouse_mode = MOUSE_POINTER;
x = _savedX;
y = _savedY;
#ifdef RESET_VIEW_ON_LEAVING_MOUSE_VIEW
Quat0();
build_rotmatrix(GuiQuat_mat, curGuiQuat);
set_goal_view_offset(0.0);
set_goal_view_tilt(0.0);
#ifdef NO_SMOOTH_MOUSE_VIEW
set_view_offset(0.0);
set_view_tilt(0.0);
#endif // NO_SMOOTH_MOUSE_VIEW
#endif // RESET_VIEW_ON_LEAVING_MOUSE_VIEW
fgSetMouseCursor(MOUSE_CURSOR_POINTER);
#if defined(FG_OLD_MENU)
#if defined(WIN32_CURSOR_TWEAKS_OFF)
if(!gui_menu_on)
TurnCursorOff();
#endif // WIN32_CURSOR_TWEAKS_OFF
#endif // FG_OLD_MENU
break;
} // end switch (mouse_mode)
fgWarpMouse( x, y );
} // END RIGHT BUTTON
} // END MOUSE DOWN
// Update the button state
if ( updown == MOUSE_BUTTON_DOWN ) {
last_buttons |= ( 1 << button ) ;
} else {
last_buttons &= ~( 1 << button ) ;
}
// If we're in pointer mode, let PUI
// know what's going on.
if (mouse_mode == MOUSE_POINTER) {
if (!puMouse (button, updown , x,y)) {
if ( globals->get_current_panel() != NULL ) {
globals->get_current_panel()->doMouseAction(button, updown, x, y);
}
}
}
// Register the new position (if it
// hasn't been registered already).
_mX = x;
_mY = y;
fgRequestRedraw ();
}
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