005ab9b8893ce4607cceba0682a3df9de344b067
[xonotic/netradiant.git] / radiant / camwindow.cpp
1 /*
2    Copyright (C) 1999-2006 Id Software, Inc. and contributors.
3    For a list of contributors, see the accompanying CONTRIBUTORS file.
4
5    This file is part of GtkRadiant.
6
7    GtkRadiant is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 2 of the License, or
10    (at your option) any later version.
11
12    GtkRadiant is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16
17    You should have received a copy of the GNU General Public License
18    along with GtkRadiant; if not, write to the Free Software
19    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
20  */
21
22 //
23 // Camera Window
24 //
25 // Leonardo Zide (leo@lokigames.com)
26 //
27
28 #include "camwindow.h"
29
30 #include <gtk/gtk.h>
31 #include <gdk/gdkkeysyms.h>
32
33 #include "debugging/debugging.h"
34
35 #include "iscenegraph.h"
36 #include "irender.h"
37 #include "igl.h"
38 #include "icamera.h"
39 #include "cullable.h"
40 #include "renderable.h"
41 #include "preferencesystem.h"
42
43 #include "signal/signal.h"
44 #include "container/array.h"
45 #include "scenelib.h"
46 #include "render.h"
47 #include "cmdlib.h"
48 #include "math/frustum.h"
49
50 #include "gtkutil/widget.h"
51 #include "gtkutil/button.h"
52 #include "gtkutil/toolbar.h"
53 #include "gtkutil/glwidget.h"
54 #include "gtkutil/xorrectangle.h"
55 #include "gtkmisc.h"
56 #include "selection.h"
57 #include "mainframe.h"
58 #include "preferences.h"
59 #include "commands.h"
60 #include "xywindow.h"
61 #include "windowobservers.h"
62 #include "renderstate.h"
63
64 #include "timer.h"
65
66 Signal0 g_cameraMoved_callbacks;
67
68 void AddCameraMovedCallback( const SignalHandler& handler ){
69         g_cameraMoved_callbacks.connectLast( handler );
70 }
71
72 void CameraMovedNotify(){
73         g_cameraMoved_callbacks();
74 }
75
76
77 struct camwindow_globals_private_t
78 {
79         int m_nMoveSpeed;
80         bool m_bCamLinkSpeed;
81         int m_nAngleSpeed;
82         bool m_bCamInverseMouse;
83         bool m_bCamDiscrete;
84         bool m_bCubicClipping;
85         bool m_showStats;
86         int m_nStrafeMode;
87
88         camwindow_globals_private_t() :
89                 m_nMoveSpeed( 100 ),
90                 m_bCamLinkSpeed( true ),
91                 m_nAngleSpeed( 3 ),
92                 m_bCamInverseMouse( false ),
93                 m_bCamDiscrete( true ),
94                 m_bCubicClipping( true ),
95                 m_showStats( true ),
96                 m_nStrafeMode( 0 ){
97         }
98
99 };
100
101 camwindow_globals_private_t g_camwindow_globals_private;
102
103
104 const Matrix4 g_opengl2radiant(
105         0, 0,-1, 0,
106         -1, 0, 0, 0,
107         0, 1, 0, 0,
108         0, 0, 0, 1
109         );
110
111 const Matrix4 g_radiant2opengl(
112         0,-1, 0, 0,
113         0, 0, 1, 0,
114         -1, 0, 0, 0,
115         0, 0, 0, 1
116         );
117
118 struct camera_t;
119 void Camera_mouseMove( camera_t& camera, int x, int y );
120
121 enum camera_draw_mode
122 {
123         cd_wire,
124         cd_solid,
125         cd_texture,
126         cd_lighting
127 };
128
129 struct camera_t
130 {
131         int width, height;
132
133         bool timing;
134
135         Vector3 origin;
136         Vector3 angles;
137
138         Vector3 color; // background
139
140         Vector3 forward, right; // move matrix (TTimo: used to have up but it was not updated)
141         Vector3 vup, vpn, vright; // view matrix (taken from the modelview matrix)
142
143         Matrix4 projection;
144         Matrix4 modelview;
145
146         bool m_strafe; // true when in strafemode toggled by the ctrl-key
147         bool m_strafe_forward; // true when in strafemode by ctrl-key and shift is pressed for forward strafing
148
149         unsigned int movementflags; // movement flags
150         Timer m_keycontrol_timer;
151         guint m_keymove_handler;
152
153
154         float fieldOfView;
155
156         DeferredMotionDelta m_mouseMove;
157
158         static void motionDelta( int x, int y, void* data ){
159                 Camera_mouseMove( *reinterpret_cast<camera_t*>( data ), x, y );
160         }
161
162         View* m_view;
163         Callback m_update;
164
165         static camera_draw_mode draw_mode;
166
167         camera_t( View* view, const Callback& update )
168                 : width( 0 ),
169                 height( 0 ),
170                 timing( false ),
171                 origin( 0, 0, 0 ),
172                 angles( 0, 0, 0 ),
173                 color( 0, 0, 0 ),
174                 movementflags( 0 ),
175                 m_keymove_handler( 0 ),
176                 fieldOfView( 90.0f ),
177                 m_mouseMove( motionDelta, this ),
178                 m_view( view ),
179                 m_update( update ){
180         }
181 };
182
183 camera_draw_mode camera_t::draw_mode = cd_texture;
184
185 inline Matrix4 projection_for_camera( float near_z, float far_z, float fieldOfView, int width, int height ){
186         const float half_width = static_cast<float>( near_z * tan( degrees_to_radians( fieldOfView * 0.5 ) ) );
187         const float half_height = half_width * ( static_cast<float>( height ) / static_cast<float>( width ) );
188
189         return matrix4_frustum(
190                            -half_width,
191                            half_width,
192                            -half_height,
193                            half_height,
194                            near_z,
195                            far_z
196                            );
197 }
198
199 float Camera_getFarClipPlane( camera_t& camera ){
200         return ( g_camwindow_globals_private.m_bCubicClipping ) ? pow( 2.0, ( g_camwindow_globals.m_nCubicScale + 7 ) / 2.0 ) : 32768.0f;
201 }
202
203 void Camera_updateProjection( camera_t& camera ){
204         float farClip = Camera_getFarClipPlane( camera );
205         camera.projection = projection_for_camera( farClip / 4096.0f, farClip, camera.fieldOfView, camera.width, camera.height );
206
207         camera.m_view->Construct( camera.projection, camera.modelview, camera.width, camera.height );
208 }
209
210 void Camera_updateVectors( camera_t& camera ){
211         for ( int i = 0 ; i < 3 ; i++ )
212         {
213                 camera.vright[i] = camera.modelview[( i << 2 ) + 0];
214                 camera.vup[i] = camera.modelview[( i << 2 ) + 1];
215                 camera.vpn[i] = camera.modelview[( i << 2 ) + 2];
216         }
217 }
218
219 void Camera_updateModelview( camera_t& camera ){
220         camera.modelview = g_matrix4_identity;
221
222         // roll, pitch, yaw
223         Vector3 radiant_eulerXYZ( 0, -camera.angles[CAMERA_PITCH], camera.angles[CAMERA_YAW] );
224
225         matrix4_translate_by_vec3( camera.modelview, camera.origin );
226         matrix4_rotate_by_euler_xyz_degrees( camera.modelview, radiant_eulerXYZ );
227         matrix4_multiply_by_matrix4( camera.modelview, g_radiant2opengl );
228         matrix4_affine_invert( camera.modelview );
229
230         Camera_updateVectors( camera );
231
232         camera.m_view->Construct( camera.projection, camera.modelview, camera.width, camera.height );
233 }
234
235
236 void Camera_Move_updateAxes( camera_t& camera ){
237         double ya = degrees_to_radians( camera.angles[CAMERA_YAW] );
238
239         // the movement matrix is kept 2d
240         camera.forward[0] = static_cast<float>( cos( ya ) );
241         camera.forward[1] = static_cast<float>( sin( ya ) );
242         camera.forward[2] = 0;
243         camera.right[0] = camera.forward[1];
244         camera.right[1] = -camera.forward[0];
245 }
246
247 void Camera_Freemove_updateAxes( camera_t& camera ){
248         camera.right = camera.vright;
249         camera.forward = vector3_negated( camera.vpn );
250 }
251
252 const Vector3& Camera_getOrigin( camera_t& camera ){
253         return camera.origin;
254 }
255
256 void Camera_setOrigin( camera_t& camera, const Vector3& origin ){
257         camera.origin = origin;
258         Camera_updateModelview( camera );
259         camera.m_update();
260         CameraMovedNotify();
261 }
262
263 const Vector3& Camera_getAngles( camera_t& camera ){
264         return camera.angles;
265 }
266
267 void Camera_setAngles( camera_t& camera, const Vector3& angles ){
268         camera.angles = angles;
269         Camera_updateModelview( camera );
270         camera.m_update();
271         CameraMovedNotify();
272 }
273
274
275 void Camera_FreeMove( camera_t& camera, int dx, int dy ){
276         // free strafe mode, toggled by the ctrl key with optional shift for forward movement
277         if ( camera.m_strafe ) {
278                 float strafespeed = 0.65f;
279
280                 if ( g_camwindow_globals_private.m_bCamLinkSpeed ) {
281                         strafespeed = (float)g_camwindow_globals_private.m_nMoveSpeed / 100;
282                 }
283
284                 camera.origin -= camera.vright * strafespeed * dx;
285                 if ( camera.m_strafe_forward ) {
286                         camera.origin += camera.vpn * strafespeed * dy;
287                 }
288                 else{
289                         camera.origin += camera.vup * strafespeed * dy;
290                 }
291         }
292         else // free rotation
293         {
294                 const float dtime = 0.1f;
295
296                 if ( g_camwindow_globals_private.m_bCamInverseMouse ) {
297                         camera.angles[CAMERA_PITCH] -= dy * dtime * g_camwindow_globals_private.m_nAngleSpeed;
298                 }
299                 else{
300                         camera.angles[CAMERA_PITCH] += dy * dtime * g_camwindow_globals_private.m_nAngleSpeed;
301                 }
302
303                 camera.angles[CAMERA_YAW] += dx * dtime * g_camwindow_globals_private.m_nAngleSpeed;
304
305                 if ( camera.angles[CAMERA_PITCH] > 90 ) {
306                         camera.angles[CAMERA_PITCH] = 90;
307                 }
308                 else if ( camera.angles[CAMERA_PITCH] < -90 ) {
309                         camera.angles[CAMERA_PITCH] = -90;
310                 }
311
312                 if ( camera.angles[CAMERA_YAW] >= 360 ) {
313                         camera.angles[CAMERA_YAW] -= 360;
314                 }
315                 else if ( camera.angles[CAMERA_YAW] <= 0 ) {
316                         camera.angles[CAMERA_YAW] += 360;
317                 }
318         }
319
320         Camera_updateModelview( camera );
321         Camera_Freemove_updateAxes( camera );
322 }
323
324 void Cam_MouseControl( camera_t& camera, int x, int y ){
325         float xf = (float)( x - camera.width / 2 ) / ( camera.width / 2 );
326         float yf = (float)( y - camera.height / 2 ) / ( camera.height / 2 );
327
328         xf *= 1.0f - fabsf( yf );
329         if ( xf < 0 ) {
330                 xf += 0.1f;
331                 if ( xf > 0 ) {
332                         xf = 0;
333                 }
334         }
335         else
336         {
337                 xf -= 0.1f;
338                 if ( xf < 0 ) {
339                         xf = 0;
340                 }
341         }
342
343         vector3_add( camera.origin, vector3_scaled( camera.forward, yf * 0.1f * g_camwindow_globals_private.m_nMoveSpeed ) );
344         camera.angles[CAMERA_YAW] += xf * -0.1f * g_camwindow_globals_private.m_nAngleSpeed;
345
346         Camera_updateModelview( camera );
347 }
348
349 void Camera_mouseMove( camera_t& camera, int x, int y ){
350         //globalOutputStream() << "mousemove... ";
351         Camera_FreeMove( camera, -x, -y );
352         camera.m_update();
353         CameraMovedNotify();
354 }
355
356 const unsigned int MOVE_NONE = 0;
357 const unsigned int MOVE_FORWARD = 1 << 0;
358 const unsigned int MOVE_BACK = 1 << 1;
359 const unsigned int MOVE_ROTRIGHT = 1 << 2;
360 const unsigned int MOVE_ROTLEFT = 1 << 3;
361 const unsigned int MOVE_STRAFERIGHT = 1 << 4;
362 const unsigned int MOVE_STRAFELEFT = 1 << 5;
363 const unsigned int MOVE_UP = 1 << 6;
364 const unsigned int MOVE_DOWN = 1 << 7;
365 const unsigned int MOVE_PITCHUP = 1 << 8;
366 const unsigned int MOVE_PITCHDOWN = 1 << 9;
367 const unsigned int MOVE_ALL = MOVE_FORWARD | MOVE_BACK | MOVE_ROTRIGHT | MOVE_ROTLEFT | MOVE_STRAFERIGHT | MOVE_STRAFELEFT | MOVE_UP | MOVE_DOWN | MOVE_PITCHUP | MOVE_PITCHDOWN;
368
369 void Cam_KeyControl( camera_t& camera, float dtime ){
370         // Update angles
371         if ( camera.movementflags & MOVE_ROTLEFT ) {
372                 camera.angles[CAMERA_YAW] += 15 * dtime * g_camwindow_globals_private.m_nAngleSpeed;
373         }
374         if ( camera.movementflags & MOVE_ROTRIGHT ) {
375                 camera.angles[CAMERA_YAW] -= 15 * dtime * g_camwindow_globals_private.m_nAngleSpeed;
376         }
377         if ( camera.movementflags & MOVE_PITCHUP ) {
378                 camera.angles[CAMERA_PITCH] += 15 * dtime * g_camwindow_globals_private.m_nAngleSpeed;
379                 if ( camera.angles[CAMERA_PITCH] > 90 ) {
380                         camera.angles[CAMERA_PITCH] = 90;
381                 }
382         }
383         if ( camera.movementflags & MOVE_PITCHDOWN ) {
384                 camera.angles[CAMERA_PITCH] -= 15 * dtime * g_camwindow_globals_private.m_nAngleSpeed;
385                 if ( camera.angles[CAMERA_PITCH] < -90 ) {
386                         camera.angles[CAMERA_PITCH] = -90;
387                 }
388         }
389
390         Camera_updateModelview( camera );
391         Camera_Freemove_updateAxes( camera );
392
393         // Update position
394         if ( camera.movementflags & MOVE_FORWARD ) {
395                 vector3_add( camera.origin, vector3_scaled( camera.forward, dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
396         }
397         if ( camera.movementflags & MOVE_BACK ) {
398                 vector3_add( camera.origin, vector3_scaled( camera.forward, -dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
399         }
400         if ( camera.movementflags & MOVE_STRAFELEFT ) {
401                 vector3_add( camera.origin, vector3_scaled( camera.right, -dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
402         }
403         if ( camera.movementflags & MOVE_STRAFERIGHT ) {
404                 vector3_add( camera.origin, vector3_scaled( camera.right, dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
405         }
406         if ( camera.movementflags & MOVE_UP ) {
407                 vector3_add( camera.origin, vector3_scaled( g_vector3_axis_z, dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
408         }
409         if ( camera.movementflags & MOVE_DOWN ) {
410                 vector3_add( camera.origin, vector3_scaled( g_vector3_axis_z, -dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
411         }
412
413         Camera_updateModelview( camera );
414 }
415
416 void Camera_keyMove( camera_t& camera ){
417         camera.m_mouseMove.flush();
418
419         //globalOutputStream() << "keymove... ";
420         float time_seconds = camera.m_keycontrol_timer.elapsed_msec() / static_cast<float>( msec_per_sec );
421         camera.m_keycontrol_timer.start();
422         if ( time_seconds > 0.05f ) {
423                 time_seconds = 0.05f; // 20fps
424         }
425         Cam_KeyControl( camera, time_seconds * 5.0f );
426
427         camera.m_update();
428         CameraMovedNotify();
429 }
430
431 gboolean camera_keymove( gpointer data ){
432         Camera_keyMove( *reinterpret_cast<camera_t*>( data ) );
433         return TRUE;
434 }
435
436 void Camera_setMovementFlags( camera_t& camera, unsigned int mask ){
437         if ( ( ~camera.movementflags & mask ) != 0 && camera.movementflags == 0 ) {
438                 camera.m_keymove_handler = g_idle_add( camera_keymove, &camera );
439         }
440         camera.movementflags |= mask;
441 }
442 void Camera_clearMovementFlags( camera_t& camera, unsigned int mask ){
443         if ( ( camera.movementflags & ~mask ) == 0 && camera.movementflags != 0 ) {
444                 g_source_remove( camera.m_keymove_handler );
445                 camera.m_keymove_handler = 0;
446         }
447         camera.movementflags &= ~mask;
448 }
449
450 void Camera_MoveForward_KeyDown( camera_t& camera ){
451         Camera_setMovementFlags( camera, MOVE_FORWARD );
452 }
453 void Camera_MoveForward_KeyUp( camera_t& camera ){
454         Camera_clearMovementFlags( camera, MOVE_FORWARD );
455 }
456 void Camera_MoveBack_KeyDown( camera_t& camera ){
457         Camera_setMovementFlags( camera, MOVE_BACK );
458 }
459 void Camera_MoveBack_KeyUp( camera_t& camera ){
460         Camera_clearMovementFlags( camera, MOVE_BACK );
461 }
462
463 void Camera_MoveLeft_KeyDown( camera_t& camera ){
464         Camera_setMovementFlags( camera, MOVE_STRAFELEFT );
465 }
466 void Camera_MoveLeft_KeyUp( camera_t& camera ){
467         Camera_clearMovementFlags( camera, MOVE_STRAFELEFT );
468 }
469 void Camera_MoveRight_KeyDown( camera_t& camera ){
470         Camera_setMovementFlags( camera, MOVE_STRAFERIGHT );
471 }
472 void Camera_MoveRight_KeyUp( camera_t& camera ){
473         Camera_clearMovementFlags( camera, MOVE_STRAFERIGHT );
474 }
475
476 void Camera_MoveUp_KeyDown( camera_t& camera ){
477         Camera_setMovementFlags( camera, MOVE_UP );
478 }
479 void Camera_MoveUp_KeyUp( camera_t& camera ){
480         Camera_clearMovementFlags( camera, MOVE_UP );
481 }
482 void Camera_MoveDown_KeyDown( camera_t& camera ){
483         Camera_setMovementFlags( camera, MOVE_DOWN );
484 }
485 void Camera_MoveDown_KeyUp( camera_t& camera ){
486         Camera_clearMovementFlags( camera, MOVE_DOWN );
487 }
488
489 void Camera_RotateLeft_KeyDown( camera_t& camera ){
490         Camera_setMovementFlags( camera, MOVE_ROTLEFT );
491 }
492 void Camera_RotateLeft_KeyUp( camera_t& camera ){
493         Camera_clearMovementFlags( camera, MOVE_ROTLEFT );
494 }
495 void Camera_RotateRight_KeyDown( camera_t& camera ){
496         Camera_setMovementFlags( camera, MOVE_ROTRIGHT );
497 }
498 void Camera_RotateRight_KeyUp( camera_t& camera ){
499         Camera_clearMovementFlags( camera, MOVE_ROTRIGHT );
500 }
501
502 void Camera_PitchUp_KeyDown( camera_t& camera ){
503         Camera_setMovementFlags( camera, MOVE_PITCHUP );
504 }
505 void Camera_PitchUp_KeyUp( camera_t& camera ){
506         Camera_clearMovementFlags( camera, MOVE_PITCHUP );
507 }
508 void Camera_PitchDown_KeyDown( camera_t& camera ){
509         Camera_setMovementFlags( camera, MOVE_PITCHDOWN );
510 }
511 void Camera_PitchDown_KeyUp( camera_t& camera ){
512         Camera_clearMovementFlags( camera, MOVE_PITCHDOWN );
513 }
514
515
516 typedef ReferenceCaller<camera_t, &Camera_MoveForward_KeyDown> FreeMoveCameraMoveForwardKeyDownCaller;
517 typedef ReferenceCaller<camera_t, &Camera_MoveForward_KeyUp> FreeMoveCameraMoveForwardKeyUpCaller;
518 typedef ReferenceCaller<camera_t, &Camera_MoveBack_KeyDown> FreeMoveCameraMoveBackKeyDownCaller;
519 typedef ReferenceCaller<camera_t, &Camera_MoveBack_KeyUp> FreeMoveCameraMoveBackKeyUpCaller;
520 typedef ReferenceCaller<camera_t, &Camera_MoveLeft_KeyDown> FreeMoveCameraMoveLeftKeyDownCaller;
521 typedef ReferenceCaller<camera_t, &Camera_MoveLeft_KeyUp> FreeMoveCameraMoveLeftKeyUpCaller;
522 typedef ReferenceCaller<camera_t, &Camera_MoveRight_KeyDown> FreeMoveCameraMoveRightKeyDownCaller;
523 typedef ReferenceCaller<camera_t, &Camera_MoveRight_KeyUp> FreeMoveCameraMoveRightKeyUpCaller;
524 typedef ReferenceCaller<camera_t, &Camera_MoveUp_KeyDown> FreeMoveCameraMoveUpKeyDownCaller;
525 typedef ReferenceCaller<camera_t, &Camera_MoveUp_KeyUp> FreeMoveCameraMoveUpKeyUpCaller;
526 typedef ReferenceCaller<camera_t, &Camera_MoveDown_KeyDown> FreeMoveCameraMoveDownKeyDownCaller;
527 typedef ReferenceCaller<camera_t, &Camera_MoveDown_KeyUp> FreeMoveCameraMoveDownKeyUpCaller;
528
529
530 #define SPEED_MOVE 32
531 #define SPEED_TURN 22.5
532 #define MIN_CAM_SPEED 10
533 #define MAX_CAM_SPEED 610
534 #define CAM_SPEED_STEP 50
535
536 void Camera_MoveForward_Discrete( camera_t& camera ){
537         Camera_Move_updateAxes( camera );
538         Camera_setOrigin( camera, vector3_added( Camera_getOrigin( camera ), vector3_scaled( camera.forward, SPEED_MOVE ) ) );
539 }
540 void Camera_MoveBack_Discrete( camera_t& camera ){
541         Camera_Move_updateAxes( camera );
542         Camera_setOrigin( camera, vector3_added( Camera_getOrigin( camera ), vector3_scaled( camera.forward, -SPEED_MOVE ) ) );
543 }
544
545 void Camera_MoveUp_Discrete( camera_t& camera ){
546         Vector3 origin( Camera_getOrigin( camera ) );
547         origin[2] += SPEED_MOVE;
548         Camera_setOrigin( camera, origin );
549 }
550 void Camera_MoveDown_Discrete( camera_t& camera ){
551         Vector3 origin( Camera_getOrigin( camera ) );
552         origin[2] -= SPEED_MOVE;
553         Camera_setOrigin( camera, origin );
554 }
555
556 void Camera_MoveLeft_Discrete( camera_t& camera ){
557         Camera_Move_updateAxes( camera );
558         Camera_setOrigin( camera, vector3_added( Camera_getOrigin( camera ), vector3_scaled( camera.right, -SPEED_MOVE ) ) );
559 }
560 void Camera_MoveRight_Discrete( camera_t& camera ){
561         Camera_Move_updateAxes( camera );
562         Camera_setOrigin( camera, vector3_added( Camera_getOrigin( camera ), vector3_scaled( camera.right, SPEED_MOVE ) ) );
563 }
564
565 void Camera_RotateLeft_Discrete( camera_t& camera ){
566         Vector3 angles( Camera_getAngles( camera ) );
567         angles[CAMERA_YAW] += SPEED_TURN;
568         Camera_setAngles( camera, angles );
569 }
570 void Camera_RotateRight_Discrete( camera_t& camera ){
571         Vector3 angles( Camera_getAngles( camera ) );
572         angles[CAMERA_YAW] -= SPEED_TURN;
573         Camera_setAngles( camera, angles );
574 }
575
576 void Camera_PitchUp_Discrete( camera_t& camera ){
577         Vector3 angles( Camera_getAngles( camera ) );
578         angles[CAMERA_PITCH] += SPEED_TURN;
579         if ( angles[CAMERA_PITCH] > 90 ) {
580                 angles[CAMERA_PITCH] = 90;
581         }
582         Camera_setAngles( camera, angles );
583 }
584 void Camera_PitchDown_Discrete( camera_t& camera ){
585         Vector3 angles( Camera_getAngles( camera ) );
586         angles[CAMERA_PITCH] -= SPEED_TURN;
587         if ( angles[CAMERA_PITCH] < -90 ) {
588                 angles[CAMERA_PITCH] = -90;
589         }
590         Camera_setAngles( camera, angles );
591 }
592
593
594 class RadiantCameraView : public CameraView
595 {
596 camera_t& m_camera;
597 View* m_view;
598 Callback m_update;
599 public:
600 RadiantCameraView( camera_t& camera, View* view, const Callback& update ) : m_camera( camera ), m_view( view ), m_update( update ){
601 }
602 void update(){
603         m_view->Construct( m_camera.projection, m_camera.modelview, m_camera.width, m_camera.height );
604         m_update();
605 }
606 void setModelview( const Matrix4& modelview ){
607         m_camera.modelview = modelview;
608         matrix4_multiply_by_matrix4( m_camera.modelview, g_radiant2opengl );
609         matrix4_affine_invert( m_camera.modelview );
610         Camera_updateVectors( m_camera );
611         update();
612 }
613 void setFieldOfView( float fieldOfView ){
614         float farClip = Camera_getFarClipPlane( m_camera );
615         m_camera.projection = projection_for_camera( farClip / 4096.0f, farClip, fieldOfView, m_camera.width, m_camera.height );
616         update();
617 }
618 };
619
620
621 void Camera_motionDelta( int x, int y, unsigned int state, void* data ){
622         camera_t* cam = reinterpret_cast<camera_t*>( data );
623
624         cam->m_mouseMove.motion_delta( x, y, state );
625
626         switch ( g_camwindow_globals_private.m_nStrafeMode )
627         {
628         case 0:
629                 cam->m_strafe = ( state & GDK_CONTROL_MASK ) != 0;
630                 if ( cam->m_strafe ) {
631                         cam->m_strafe_forward = ( state & GDK_SHIFT_MASK ) != 0;
632                 }
633                 else{
634                         cam->m_strafe_forward = false;
635                 }
636                 break;
637         case 1:
638                 cam->m_strafe = ( state & GDK_CONTROL_MASK ) != 0 && ( state & GDK_SHIFT_MASK ) == 0;
639                 cam->m_strafe_forward = false;
640                 break;
641         case 2:
642                 cam->m_strafe = ( state & GDK_CONTROL_MASK ) != 0 && ( state & GDK_SHIFT_MASK ) == 0;
643                 cam->m_strafe_forward = cam->m_strafe;
644                 break;
645         }
646 }
647
648 class CamWnd
649 {
650 View m_view;
651 camera_t m_Camera;
652 RadiantCameraView m_cameraview;
653 #if 0
654 int m_PositionDragCursorX;
655 int m_PositionDragCursorY;
656 #endif
657
658 guint m_freemove_handle_focusout;
659
660 static Shader* m_state_select1;
661 static Shader* m_state_select2;
662
663 FreezePointer m_freezePointer;
664
665 public:
666 ui::GLArea m_gl_widget;
667 ui::Window m_parent{ui::null};
668
669 SelectionSystemWindowObserver* m_window_observer;
670 XORRectangle m_XORRectangle;
671
672 DeferredDraw m_deferredDraw;
673 DeferredMotion m_deferred_motion;
674
675 guint m_selection_button_press_handler;
676 guint m_selection_button_release_handler;
677 guint m_selection_motion_handler;
678
679 guint m_freelook_button_press_handler;
680
681 guint m_sizeHandler;
682 guint m_exposeHandler;
683
684 CamWnd();
685 ~CamWnd();
686
687 bool m_drawing;
688 void queue_draw(){
689         //ASSERT_MESSAGE(!m_drawing, "CamWnd::queue_draw(): called while draw is already in progress");
690         if ( m_drawing ) {
691                 return;
692         }
693         //globalOutputStream() << "queue... ";
694         m_deferredDraw.draw();
695 }
696 void draw();
697
698 static void captureStates(){
699         m_state_select1 = GlobalShaderCache().capture( "$CAM_HIGHLIGHT" );
700         m_state_select2 = GlobalShaderCache().capture( "$CAM_OVERLAY" );
701 }
702 static void releaseStates(){
703         GlobalShaderCache().release( "$CAM_HIGHLIGHT" );
704         GlobalShaderCache().release( "$CAM_OVERLAY" );
705 }
706
707 camera_t& getCamera(){
708         return m_Camera;
709 };
710
711 void BenchMark();
712 void Cam_ChangeFloor( bool up );
713
714 void DisableFreeMove();
715 void EnableFreeMove();
716 bool m_bFreeMove;
717
718 CameraView& getCameraView(){
719         return m_cameraview;
720 }
721
722 private:
723 void Cam_Draw();
724 };
725
726 typedef MemberCaller<CamWnd, &CamWnd::queue_draw> CamWndQueueDraw;
727
728 Shader* CamWnd::m_state_select1 = 0;
729 Shader* CamWnd::m_state_select2 = 0;
730
731 CamWnd* NewCamWnd(){
732         return new CamWnd;
733 }
734 void DeleteCamWnd( CamWnd* camwnd ){
735         delete camwnd;
736 }
737
738 void CamWnd_constructStatic(){
739         CamWnd::captureStates();
740 }
741
742 void CamWnd_destroyStatic(){
743         CamWnd::releaseStates();
744 }
745
746 static CamWnd* g_camwnd = 0;
747
748 void GlobalCamera_setCamWnd( CamWnd& camwnd ){
749         g_camwnd = &camwnd;
750 }
751
752
753 ui::GLArea CamWnd_getWidget( CamWnd& camwnd ){
754         return camwnd.m_gl_widget;
755 }
756
757 ui::Window CamWnd_getParent( CamWnd& camwnd ){
758         return camwnd.m_parent;
759 }
760
761 ToggleShown g_camera_shown( true );
762
763 void CamWnd_setParent( CamWnd& camwnd, ui::Window parent ){
764         camwnd.m_parent = parent;
765         g_camera_shown.connect( camwnd.m_parent );
766 }
767
768 void CamWnd_Update( CamWnd& camwnd ){
769         camwnd.queue_draw();
770 }
771
772
773
774 camwindow_globals_t g_camwindow_globals;
775
776 const Vector3& Camera_getOrigin( CamWnd& camwnd ){
777         return Camera_getOrigin( camwnd.getCamera() );
778 }
779
780 void Camera_setOrigin( CamWnd& camwnd, const Vector3& origin ){
781         Camera_setOrigin( camwnd.getCamera(), origin );
782 }
783
784 const Vector3& Camera_getAngles( CamWnd& camwnd ){
785         return Camera_getAngles( camwnd.getCamera() );
786 }
787
788 void Camera_setAngles( CamWnd& camwnd, const Vector3& angles ){
789         Camera_setAngles( camwnd.getCamera(), angles );
790 }
791
792
793 // =============================================================================
794 // CamWnd class
795
796 gboolean enable_freelook_button_press( ui::Widget widget, GdkEventButton* event, CamWnd* camwnd ){
797         if ( event->type == GDK_BUTTON_PRESS && event->button == 3 ) {
798                 camwnd->EnableFreeMove();
799                 return TRUE;
800         }
801         return FALSE;
802 }
803
804 gboolean disable_freelook_button_press( ui::Widget widget, GdkEventButton* event, CamWnd* camwnd ){
805         if ( event->type == GDK_BUTTON_PRESS && event->button == 3 ) {
806                 camwnd->DisableFreeMove();
807                 return TRUE;
808         }
809         return FALSE;
810 }
811
812 #if 0
813 gboolean mousecontrol_button_press( ui::Widget widget, GdkEventButton* event, CamWnd* camwnd ){
814         if ( event->type == GDK_BUTTON_PRESS && event->button == 3 ) {
815                 Cam_MouseControl( camwnd->getCamera(), event->x, widget->allocation.height - 1 - event->y );
816         }
817         return FALSE;
818 }
819 #endif
820
821 void camwnd_update_xor_rectangle( CamWnd& self, rect_t area ){
822         if ( self.m_gl_widget.visible() ) {
823                 self.m_XORRectangle.set( rectangle_from_area( area.min, area.max, self.getCamera().width, self.getCamera().height ) );
824         }
825 }
826
827
828 gboolean selection_button_press( ui::Widget widget, GdkEventButton* event, WindowObserver* observer ){
829         if ( event->type == GDK_BUTTON_PRESS ) {
830                 observer->onMouseDown( WindowVector_forDouble( event->x, event->y ), button_for_button( event->button ), modifiers_for_state( event->state ) );
831         }
832         return FALSE;
833 }
834
835 gboolean selection_button_release( ui::Widget widget, GdkEventButton* event, WindowObserver* observer ){
836         if ( event->type == GDK_BUTTON_RELEASE ) {
837                 observer->onMouseUp( WindowVector_forDouble( event->x, event->y ), button_for_button( event->button ), modifiers_for_state( event->state ) );
838         }
839         return FALSE;
840 }
841
842 void selection_motion( gdouble x, gdouble y, guint state, void* data ){
843         //globalOutputStream() << "motion... ";
844         reinterpret_cast<WindowObserver*>( data )->onMouseMotion( WindowVector_forDouble( x, y ), modifiers_for_state( state ) );
845 }
846
847 inline WindowVector windowvector_for_widget_centre( ui::Widget widget ){
848         auto allocation = widget.dimensions();
849         return WindowVector( static_cast<float>( allocation.width / 2 ), static_cast<float>(allocation.height / 2 ) );
850 }
851
852 gboolean selection_button_press_freemove( ui::Widget widget, GdkEventButton* event, WindowObserver* observer ){
853         if ( event->type == GDK_BUTTON_PRESS ) {
854                 observer->onMouseDown( windowvector_for_widget_centre( widget ), button_for_button( event->button ), modifiers_for_state( event->state ) );
855         }
856         return FALSE;
857 }
858
859 gboolean selection_button_release_freemove( ui::Widget widget, GdkEventButton* event, WindowObserver* observer ){
860         if ( event->type == GDK_BUTTON_RELEASE ) {
861                 observer->onMouseUp( windowvector_for_widget_centre( widget ), button_for_button( event->button ), modifiers_for_state( event->state ) );
862         }
863         return FALSE;
864 }
865
866 gboolean selection_motion_freemove( ui::Widget widget, GdkEventMotion *event, WindowObserver* observer ){
867         observer->onMouseMotion( windowvector_for_widget_centre( widget ), modifiers_for_state( event->state ) );
868         return FALSE;
869 }
870
871 gboolean wheelmove_scroll( ui::Widget widget, GdkEventScroll* event, CamWnd* camwnd ){
872         if ( event->direction == GDK_SCROLL_UP ) {
873                 Camera_Freemove_updateAxes( camwnd->getCamera() );
874                 Camera_setOrigin( *camwnd, vector3_added( Camera_getOrigin( *camwnd ), vector3_scaled( camwnd->getCamera().forward, static_cast<float>( g_camwindow_globals_private.m_nMoveSpeed ) ) ) );
875         }
876         else if ( event->direction == GDK_SCROLL_DOWN ) {
877                 Camera_Freemove_updateAxes( camwnd->getCamera() );
878                 Camera_setOrigin( *camwnd, vector3_added( Camera_getOrigin( *camwnd ), vector3_scaled( camwnd->getCamera().forward, -static_cast<float>( g_camwindow_globals_private.m_nMoveSpeed ) ) ) );
879         }
880
881         return FALSE;
882 }
883
884 gboolean camera_size_allocate( ui::Widget widget, GtkAllocation* allocation, CamWnd* camwnd ){
885         camwnd->getCamera().width = allocation->width;
886         camwnd->getCamera().height = allocation->height;
887         Camera_updateProjection( camwnd->getCamera() );
888         camwnd->m_window_observer->onSizeChanged( camwnd->getCamera().width, camwnd->getCamera().height );
889         camwnd->queue_draw();
890         return FALSE;
891 }
892
893 gboolean camera_expose( ui::Widget widget, GdkEventExpose* event, gpointer data ){
894         reinterpret_cast<CamWnd*>( data )->draw();
895         return FALSE;
896 }
897
898 void KeyEvent_connect( const char* name ){
899         const KeyEvent& keyEvent = GlobalKeyEvents_find( name );
900         keydown_accelerators_add( keyEvent.m_accelerator, keyEvent.m_keyDown );
901         keyup_accelerators_add( keyEvent.m_accelerator, keyEvent.m_keyUp );
902 }
903
904 void KeyEvent_disconnect( const char* name ){
905         const KeyEvent& keyEvent = GlobalKeyEvents_find( name );
906         keydown_accelerators_remove( keyEvent.m_accelerator );
907         keyup_accelerators_remove( keyEvent.m_accelerator );
908 }
909
910 void CamWnd_registerCommands( CamWnd& camwnd ){
911         GlobalKeyEvents_insert( "CameraForward", Accelerator( GDK_KEY_Up ),
912                                                         ReferenceCaller<camera_t, Camera_MoveForward_KeyDown>( camwnd.getCamera() ),
913                                                         ReferenceCaller<camera_t, Camera_MoveForward_KeyUp>( camwnd.getCamera() )
914                                                         );
915         GlobalKeyEvents_insert( "CameraBack", Accelerator( GDK_KEY_Down ),
916                                                         ReferenceCaller<camera_t, Camera_MoveBack_KeyDown>( camwnd.getCamera() ),
917                                                         ReferenceCaller<camera_t, Camera_MoveBack_KeyUp>( camwnd.getCamera() )
918                                                         );
919         GlobalKeyEvents_insert( "CameraLeft", Accelerator( GDK_KEY_Left ),
920                                                         ReferenceCaller<camera_t, Camera_RotateLeft_KeyDown>( camwnd.getCamera() ),
921                                                         ReferenceCaller<camera_t, Camera_RotateLeft_KeyUp>( camwnd.getCamera() )
922                                                         );
923         GlobalKeyEvents_insert( "CameraRight", Accelerator( GDK_KEY_Right ),
924                                                         ReferenceCaller<camera_t, Camera_RotateRight_KeyDown>( camwnd.getCamera() ),
925                                                         ReferenceCaller<camera_t, Camera_RotateRight_KeyUp>( camwnd.getCamera() )
926                                                         );
927         GlobalKeyEvents_insert( "CameraStrafeRight", Accelerator( GDK_KEY_period ),
928                                                         ReferenceCaller<camera_t, Camera_MoveRight_KeyDown>( camwnd.getCamera() ),
929                                                         ReferenceCaller<camera_t, Camera_MoveRight_KeyUp>( camwnd.getCamera() )
930                                                         );
931         GlobalKeyEvents_insert( "CameraStrafeLeft", Accelerator( GDK_KEY_comma ),
932                                                         ReferenceCaller<camera_t, Camera_MoveLeft_KeyDown>( camwnd.getCamera() ),
933                                                         ReferenceCaller<camera_t, Camera_MoveLeft_KeyUp>( camwnd.getCamera() )
934                                                         );
935         GlobalKeyEvents_insert( "CameraUp", Accelerator( 'D' ),
936                                                         ReferenceCaller<camera_t, Camera_MoveUp_KeyDown>( camwnd.getCamera() ),
937                                                         ReferenceCaller<camera_t, Camera_MoveUp_KeyUp>( camwnd.getCamera() )
938                                                         );
939         GlobalKeyEvents_insert( "CameraDown", Accelerator( 'C' ),
940                                                         ReferenceCaller<camera_t, Camera_MoveDown_KeyDown>( camwnd.getCamera() ),
941                                                         ReferenceCaller<camera_t, Camera_MoveDown_KeyUp>( camwnd.getCamera() )
942                                                         );
943         GlobalKeyEvents_insert( "CameraAngleDown", Accelerator( 'A' ),
944                                                         ReferenceCaller<camera_t, Camera_PitchDown_KeyDown>( camwnd.getCamera() ),
945                                                         ReferenceCaller<camera_t, Camera_PitchDown_KeyUp>( camwnd.getCamera() )
946                                                         );
947         GlobalKeyEvents_insert( "CameraAngleUp", Accelerator( 'Z' ),
948                                                         ReferenceCaller<camera_t, Camera_PitchUp_KeyDown>( camwnd.getCamera() ),
949                                                         ReferenceCaller<camera_t, Camera_PitchUp_KeyUp>( camwnd.getCamera() )
950                                                         );
951
952         GlobalKeyEvents_insert( "CameraFreeMoveForward", Accelerator( GDK_KEY_Up ),
953                                                         FreeMoveCameraMoveForwardKeyDownCaller( camwnd.getCamera() ),
954                                                         FreeMoveCameraMoveForwardKeyUpCaller( camwnd.getCamera() )
955                                                         );
956         GlobalKeyEvents_insert( "CameraFreeMoveBack", Accelerator( GDK_KEY_Down ),
957                                                         FreeMoveCameraMoveBackKeyDownCaller( camwnd.getCamera() ),
958                                                         FreeMoveCameraMoveBackKeyUpCaller( camwnd.getCamera() )
959                                                         );
960         GlobalKeyEvents_insert( "CameraFreeMoveLeft", Accelerator( GDK_KEY_Left ),
961                                                         FreeMoveCameraMoveLeftKeyDownCaller( camwnd.getCamera() ),
962                                                         FreeMoveCameraMoveLeftKeyUpCaller( camwnd.getCamera() )
963                                                         );
964         GlobalKeyEvents_insert( "CameraFreeMoveRight", Accelerator( GDK_KEY_Right ),
965                                                         FreeMoveCameraMoveRightKeyDownCaller( camwnd.getCamera() ),
966                                                         FreeMoveCameraMoveRightKeyUpCaller( camwnd.getCamera() )
967                                                         );
968         GlobalKeyEvents_insert( "CameraFreeMoveUp", Accelerator( 'D' ),
969                                                         FreeMoveCameraMoveUpKeyDownCaller( camwnd.getCamera() ),
970                                                         FreeMoveCameraMoveUpKeyUpCaller( camwnd.getCamera() )
971                                                         );
972         GlobalKeyEvents_insert( "CameraFreeMoveDown", Accelerator( 'C' ),
973                                                         FreeMoveCameraMoveDownKeyDownCaller( camwnd.getCamera() ),
974                                                         FreeMoveCameraMoveDownKeyUpCaller( camwnd.getCamera() )
975                                                         );
976
977         GlobalCommands_insert( "CameraForward", ReferenceCaller<camera_t, Camera_MoveForward_Discrete>( camwnd.getCamera() ), Accelerator( GDK_KEY_Up ) );
978         GlobalCommands_insert( "CameraBack", ReferenceCaller<camera_t, Camera_MoveBack_Discrete>( camwnd.getCamera() ), Accelerator( GDK_KEY_Down ) );
979         GlobalCommands_insert( "CameraLeft", ReferenceCaller<camera_t, Camera_RotateLeft_Discrete>( camwnd.getCamera() ), Accelerator( GDK_KEY_Left ) );
980         GlobalCommands_insert( "CameraRight", ReferenceCaller<camera_t, Camera_RotateRight_Discrete>( camwnd.getCamera() ), Accelerator( GDK_KEY_Right ) );
981         GlobalCommands_insert( "CameraStrafeRight", ReferenceCaller<camera_t, Camera_MoveRight_Discrete>( camwnd.getCamera() ), Accelerator( GDK_KEY_period ) );
982         GlobalCommands_insert( "CameraStrafeLeft", ReferenceCaller<camera_t, Camera_MoveLeft_Discrete>( camwnd.getCamera() ), Accelerator( GDK_KEY_comma ) );
983
984         GlobalCommands_insert( "CameraUp", ReferenceCaller<camera_t, Camera_MoveUp_Discrete>( camwnd.getCamera() ), Accelerator( 'D' ) );
985         GlobalCommands_insert( "CameraDown", ReferenceCaller<camera_t, Camera_MoveDown_Discrete>( camwnd.getCamera() ), Accelerator( 'C' ) );
986         GlobalCommands_insert( "CameraAngleUp", ReferenceCaller<camera_t, Camera_PitchUp_Discrete>( camwnd.getCamera() ), Accelerator( 'A' ) );
987         GlobalCommands_insert( "CameraAngleDown", ReferenceCaller<camera_t, Camera_PitchDown_Discrete>( camwnd.getCamera() ), Accelerator( 'Z' ) );
988 }
989
990 void CamWnd_Move_Enable( CamWnd& camwnd ){
991         KeyEvent_connect( "CameraForward" );
992         KeyEvent_connect( "CameraBack" );
993         KeyEvent_connect( "CameraLeft" );
994         KeyEvent_connect( "CameraRight" );
995         KeyEvent_connect( "CameraStrafeRight" );
996         KeyEvent_connect( "CameraStrafeLeft" );
997         KeyEvent_connect( "CameraUp" );
998         KeyEvent_connect( "CameraDown" );
999         KeyEvent_connect( "CameraAngleUp" );
1000         KeyEvent_connect( "CameraAngleDown" );
1001 }
1002
1003 void CamWnd_Move_Disable( CamWnd& camwnd ){
1004         KeyEvent_disconnect( "CameraForward" );
1005         KeyEvent_disconnect( "CameraBack" );
1006         KeyEvent_disconnect( "CameraLeft" );
1007         KeyEvent_disconnect( "CameraRight" );
1008         KeyEvent_disconnect( "CameraStrafeRight" );
1009         KeyEvent_disconnect( "CameraStrafeLeft" );
1010         KeyEvent_disconnect( "CameraUp" );
1011         KeyEvent_disconnect( "CameraDown" );
1012         KeyEvent_disconnect( "CameraAngleUp" );
1013         KeyEvent_disconnect( "CameraAngleDown" );
1014 }
1015
1016 void CamWnd_Move_Discrete_Enable( CamWnd& camwnd ){
1017         command_connect_accelerator( "CameraForward" );
1018         command_connect_accelerator( "CameraBack" );
1019         command_connect_accelerator( "CameraLeft" );
1020         command_connect_accelerator( "CameraRight" );
1021         command_connect_accelerator( "CameraStrafeRight" );
1022         command_connect_accelerator( "CameraStrafeLeft" );
1023         command_connect_accelerator( "CameraUp" );
1024         command_connect_accelerator( "CameraDown" );
1025         command_connect_accelerator( "CameraAngleUp" );
1026         command_connect_accelerator( "CameraAngleDown" );
1027 }
1028
1029 void CamWnd_Move_Discrete_Disable( CamWnd& camwnd ){
1030         command_disconnect_accelerator( "CameraForward" );
1031         command_disconnect_accelerator( "CameraBack" );
1032         command_disconnect_accelerator( "CameraLeft" );
1033         command_disconnect_accelerator( "CameraRight" );
1034         command_disconnect_accelerator( "CameraStrafeRight" );
1035         command_disconnect_accelerator( "CameraStrafeLeft" );
1036         command_disconnect_accelerator( "CameraUp" );
1037         command_disconnect_accelerator( "CameraDown" );
1038         command_disconnect_accelerator( "CameraAngleUp" );
1039         command_disconnect_accelerator( "CameraAngleDown" );
1040 }
1041
1042 void CamWnd_Move_Discrete_Import( CamWnd& camwnd, bool value ){
1043         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1044                 CamWnd_Move_Discrete_Disable( camwnd );
1045         }
1046         else
1047         {
1048                 CamWnd_Move_Disable( camwnd );
1049         }
1050
1051         g_camwindow_globals_private.m_bCamDiscrete = value;
1052
1053         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1054                 CamWnd_Move_Discrete_Enable( camwnd );
1055         }
1056         else
1057         {
1058                 CamWnd_Move_Enable( camwnd );
1059         }
1060 }
1061
1062 void CamWnd_Move_Discrete_Import( bool value ){
1063         if ( g_camwnd != 0 ) {
1064                 CamWnd_Move_Discrete_Import( *g_camwnd, value );
1065         }
1066         else
1067         {
1068                 g_camwindow_globals_private.m_bCamDiscrete = value;
1069         }
1070 }
1071
1072
1073
1074 void CamWnd_Add_Handlers_Move( CamWnd& camwnd ){
1075         camwnd.m_selection_button_press_handler = camwnd.m_gl_widget.connect( "button_press_event", G_CALLBACK( selection_button_press ), camwnd.m_window_observer );
1076         camwnd.m_selection_button_release_handler = camwnd.m_gl_widget.connect( "button_release_event", G_CALLBACK( selection_button_release ), camwnd.m_window_observer );
1077         camwnd.m_selection_motion_handler = camwnd.m_gl_widget.connect( "motion_notify_event", G_CALLBACK( DeferredMotion::gtk_motion ), &camwnd.m_deferred_motion );
1078
1079         camwnd.m_freelook_button_press_handler = camwnd.m_gl_widget.connect( "button_press_event", G_CALLBACK( enable_freelook_button_press ), &camwnd );
1080
1081         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1082                 CamWnd_Move_Discrete_Enable( camwnd );
1083         }
1084         else
1085         {
1086                 CamWnd_Move_Enable( camwnd );
1087         }
1088 }
1089
1090 void CamWnd_Remove_Handlers_Move( CamWnd& camwnd ){
1091         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_press_handler );
1092         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_release_handler );
1093         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_motion_handler );
1094
1095         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_freelook_button_press_handler );
1096
1097         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1098                 CamWnd_Move_Discrete_Disable( camwnd );
1099         }
1100         else
1101         {
1102                 CamWnd_Move_Disable( camwnd );
1103         }
1104 }
1105
1106 void CamWnd_Add_Handlers_FreeMove( CamWnd& camwnd ){
1107         camwnd.m_selection_button_press_handler = camwnd.m_gl_widget.connect( "button_press_event", G_CALLBACK( selection_button_press_freemove ), camwnd.m_window_observer );
1108         camwnd.m_selection_button_release_handler = camwnd.m_gl_widget.connect( "button_release_event", G_CALLBACK( selection_button_release_freemove ), camwnd.m_window_observer );
1109         camwnd.m_selection_motion_handler = camwnd.m_gl_widget.connect( "motion_notify_event", G_CALLBACK( selection_motion_freemove ), camwnd.m_window_observer );
1110
1111         camwnd.m_freelook_button_press_handler = camwnd.m_gl_widget.connect( "button_press_event", G_CALLBACK( disable_freelook_button_press ), &camwnd );
1112
1113         KeyEvent_connect( "CameraFreeMoveForward" );
1114         KeyEvent_connect( "CameraFreeMoveBack" );
1115         KeyEvent_connect( "CameraFreeMoveLeft" );
1116         KeyEvent_connect( "CameraFreeMoveRight" );
1117         KeyEvent_connect( "CameraFreeMoveUp" );
1118         KeyEvent_connect( "CameraFreeMoveDown" );
1119 }
1120
1121 void CamWnd_Remove_Handlers_FreeMove( CamWnd& camwnd ){
1122         KeyEvent_disconnect( "CameraFreeMoveForward" );
1123         KeyEvent_disconnect( "CameraFreeMoveBack" );
1124         KeyEvent_disconnect( "CameraFreeMoveLeft" );
1125         KeyEvent_disconnect( "CameraFreeMoveRight" );
1126         KeyEvent_disconnect( "CameraFreeMoveUp" );
1127         KeyEvent_disconnect( "CameraFreeMoveDown" );
1128
1129         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_press_handler );
1130         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_release_handler );
1131         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_motion_handler );
1132
1133         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_freelook_button_press_handler );
1134 }
1135
1136 CamWnd::CamWnd() :
1137         m_view( true ),
1138         m_Camera( &m_view, CamWndQueueDraw( *this ) ),
1139         m_cameraview( m_Camera, &m_view, ReferenceCaller<CamWnd, CamWnd_Update>( *this ) ),
1140         m_gl_widget( glwidget_new( TRUE ) ),
1141         m_window_observer( NewWindowObserver() ),
1142         m_XORRectangle( m_gl_widget ),
1143         m_deferredDraw( WidgetQueueDrawCaller( m_gl_widget ) ),
1144         m_deferred_motion( selection_motion, m_window_observer ),
1145         m_selection_button_press_handler( 0 ),
1146         m_selection_button_release_handler( 0 ),
1147         m_selection_motion_handler( 0 ),
1148         m_freelook_button_press_handler( 0 ),
1149         m_drawing( false ){
1150         m_bFreeMove = false;
1151
1152         GlobalWindowObservers_add( m_window_observer );
1153         GlobalWindowObservers_connectWidget( m_gl_widget );
1154
1155         m_window_observer->setRectangleDrawCallback( ReferenceCaller1<CamWnd, rect_t, camwnd_update_xor_rectangle>( *this ) );
1156         m_window_observer->setView( m_view );
1157
1158         g_object_ref( m_gl_widget._handle );
1159
1160         gtk_widget_set_events( m_gl_widget, GDK_DESTROY | GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK | GDK_SCROLL_MASK );
1161         gtk_widget_set_can_focus( m_gl_widget, true );
1162
1163         m_sizeHandler = m_gl_widget.connect( "size_allocate", G_CALLBACK( camera_size_allocate ), this );
1164         m_exposeHandler = m_gl_widget.on_render( G_CALLBACK( camera_expose ), this );
1165
1166         Map_addValidCallback( g_map, DeferredDrawOnMapValidChangedCaller( m_deferredDraw ) );
1167
1168         CamWnd_registerCommands( *this );
1169
1170         CamWnd_Add_Handlers_Move( *this );
1171
1172         m_gl_widget.connect( "scroll_event", G_CALLBACK( wheelmove_scroll ), this );
1173
1174         AddSceneChangeCallback( ReferenceCaller<CamWnd, CamWnd_Update>( *this ) );
1175
1176         PressedButtons_connect( g_pressedButtons, m_gl_widget );
1177 }
1178
1179 CamWnd::~CamWnd(){
1180         if ( m_bFreeMove ) {
1181                 DisableFreeMove();
1182         }
1183
1184         CamWnd_Remove_Handlers_Move( *this );
1185
1186         g_signal_handler_disconnect( G_OBJECT( m_gl_widget ), m_sizeHandler );
1187         g_signal_handler_disconnect( G_OBJECT( m_gl_widget ), m_exposeHandler );
1188
1189         m_gl_widget.unref();
1190
1191         m_window_observer->release();
1192 }
1193
1194 class FloorHeightWalker : public scene::Graph::Walker
1195 {
1196 float m_current;
1197 float& m_bestUp;
1198 float& m_bestDown;
1199 public:
1200 FloorHeightWalker( float current, float& bestUp, float& bestDown ) :
1201         m_current( current ), m_bestUp( bestUp ), m_bestDown( bestDown ){
1202         bestUp = g_MaxWorldCoord;
1203         bestDown = -g_MaxWorldCoord;
1204 }
1205 bool pre( const scene::Path& path, scene::Instance& instance ) const {
1206         if ( path.top().get().visible()
1207                  && Node_isBrush( path.top() ) ) { // this node is a floor
1208                 const AABB& aabb = instance.worldAABB();
1209                 float floorHeight = aabb.origin.z() + aabb.extents.z();
1210                 if ( floorHeight > m_current && floorHeight < m_bestUp ) {
1211                         m_bestUp = floorHeight;
1212                 }
1213                 if ( floorHeight < m_current && floorHeight > m_bestDown ) {
1214                         m_bestDown = floorHeight;
1215                 }
1216         }
1217         return true;
1218 }
1219 };
1220
1221 void CamWnd::Cam_ChangeFloor( bool up ){
1222         float current = m_Camera.origin[2] - 48;
1223         float bestUp;
1224         float bestDown;
1225         GlobalSceneGraph().traverse( FloorHeightWalker( current, bestUp, bestDown ) );
1226
1227         if ( up && bestUp != g_MaxWorldCoord ) {
1228                 current = bestUp;
1229         }
1230         if ( !up && bestDown != -g_MaxWorldCoord ) {
1231                 current = bestDown;
1232         }
1233
1234         m_Camera.origin[2] = current + 48;
1235         Camera_updateModelview( getCamera() );
1236         CamWnd_Update( *this );
1237         CameraMovedNotify();
1238 }
1239
1240
1241 #if 0
1242
1243 // button_press
1244 Sys_GetCursorPos( &m_PositionDragCursorX, &m_PositionDragCursorY );
1245
1246 // motion
1247 if ( ( m_bFreeMove && ( buttons == ( RAD_CONTROL | RAD_SHIFT ) ) )
1248          || ( !m_bFreeMove && ( buttons == ( RAD_RBUTTON | RAD_CONTROL ) ) ) ) {
1249         Cam_PositionDrag();
1250         CamWnd_Update( camwnd );
1251         CameraMovedNotify();
1252         return;
1253 }
1254
1255 void CamWnd::Cam_PositionDrag(){
1256         int x, y;
1257
1258         Sys_GetCursorPos( GTK_WINDOW( m_gl_widget ), &x, &y );
1259         if ( x != m_PositionDragCursorX || y != m_PositionDragCursorY ) {
1260                 x -= m_PositionDragCursorX;
1261                 vector3_add( m_Camera.origin, vector3_scaled( m_Camera.vright, x ) );
1262                 y -= m_PositionDragCursorY;
1263                 m_Camera.origin[2] -= y;
1264                 Camera_updateModelview();
1265                 CamWnd_Update( camwnd );
1266                 CameraMovedNotify();
1267
1268                 Sys_SetCursorPos( GTK_WINDOW( m_parent ), m_PositionDragCursorX, m_PositionDragCursorY );
1269         }
1270 }
1271 #endif
1272
1273
1274 // NOTE TTimo if there's an OS-level focus out of the application
1275 //   then we can release the camera cursor grab
1276 static gboolean camwindow_freemove_focusout( ui::Widget widget, GdkEventFocus* event, gpointer data ){
1277         reinterpret_cast<CamWnd*>( data )->DisableFreeMove();
1278         return FALSE;
1279 }
1280
1281 void CamWnd::EnableFreeMove(){
1282         //globalOutputStream() << "EnableFreeMove\n";
1283
1284         ASSERT_MESSAGE( !m_bFreeMove, "EnableFreeMove: free-move was already enabled" );
1285         m_bFreeMove = true;
1286         Camera_clearMovementFlags( getCamera(), MOVE_ALL );
1287
1288         CamWnd_Remove_Handlers_Move( *this );
1289         CamWnd_Add_Handlers_FreeMove( *this );
1290
1291         gtk_window_set_focus( m_parent, m_gl_widget );
1292         m_freemove_handle_focusout = m_gl_widget.connect( "focus_out_event", G_CALLBACK( camwindow_freemove_focusout ), this );
1293         m_freezePointer.freeze_pointer( m_parent, Camera_motionDelta, &m_Camera );
1294
1295         CamWnd_Update( *this );
1296 }
1297
1298 void CamWnd::DisableFreeMove(){
1299         //globalOutputStream() << "DisableFreeMove\n";
1300
1301         ASSERT_MESSAGE( m_bFreeMove, "DisableFreeMove: free-move was not enabled" );
1302         m_bFreeMove = false;
1303         Camera_clearMovementFlags( getCamera(), MOVE_ALL );
1304
1305         CamWnd_Remove_Handlers_FreeMove( *this );
1306         CamWnd_Add_Handlers_Move( *this );
1307
1308         m_freezePointer.unfreeze_pointer( m_parent );
1309         g_signal_handler_disconnect( G_OBJECT( m_gl_widget ), m_freemove_handle_focusout );
1310
1311         CamWnd_Update( *this );
1312 }
1313
1314
1315 #include "renderer.h"
1316
1317 class CamRenderer : public Renderer
1318 {
1319 struct state_type
1320 {
1321         state_type() : m_highlight( 0 ), m_state( 0 ), m_lights( 0 ){
1322         }
1323         unsigned int m_highlight;
1324         Shader* m_state;
1325         const LightList* m_lights;
1326 };
1327
1328 std::vector<state_type> m_state_stack;
1329 RenderStateFlags m_globalstate;
1330 Shader* m_state_select0;
1331 Shader* m_state_select1;
1332 const Vector3& m_viewer;
1333
1334 public:
1335 CamRenderer( RenderStateFlags globalstate, Shader* select0, Shader* select1, const Vector3& viewer ) :
1336         m_globalstate( globalstate ),
1337         m_state_select0( select0 ),
1338         m_state_select1( select1 ),
1339         m_viewer( viewer ){
1340         ASSERT_NOTNULL( select0 );
1341         ASSERT_NOTNULL( select1 );
1342         m_state_stack.push_back( state_type() );
1343 }
1344
1345 void SetState( Shader* state, EStyle style ){
1346         ASSERT_NOTNULL( state );
1347         if ( style == eFullMaterials ) {
1348                 m_state_stack.back().m_state = state;
1349         }
1350 }
1351 EStyle getStyle() const {
1352         return eFullMaterials;
1353 }
1354 void PushState(){
1355         m_state_stack.push_back( m_state_stack.back() );
1356 }
1357 void PopState(){
1358         ASSERT_MESSAGE( !m_state_stack.empty(), "popping empty stack" );
1359         m_state_stack.pop_back();
1360 }
1361 void Highlight( EHighlightMode mode, bool bEnable = true ){
1362         ( bEnable )
1363         ? m_state_stack.back().m_highlight |= mode
1364                                                                                   : m_state_stack.back().m_highlight &= ~mode;
1365 }
1366 void setLights( const LightList& lights ){
1367         m_state_stack.back().m_lights = &lights;
1368 }
1369 void addRenderable( const OpenGLRenderable& renderable, const Matrix4& world ){
1370         if ( m_state_stack.back().m_highlight & ePrimitive ) {
1371                 m_state_select0->addRenderable( renderable, world, m_state_stack.back().m_lights );
1372         }
1373         if ( m_state_stack.back().m_highlight & eFace ) {
1374                 m_state_select1->addRenderable( renderable, world, m_state_stack.back().m_lights );
1375         }
1376
1377         m_state_stack.back().m_state->addRenderable( renderable, world, m_state_stack.back().m_lights );
1378 }
1379
1380 void render( const Matrix4& modelview, const Matrix4& projection ){
1381         GlobalShaderCache().render( m_globalstate, modelview, projection, m_viewer );
1382 }
1383 };
1384
1385 /*
1386    ==============
1387    Cam_Draw
1388    ==============
1389  */
1390
1391 void ShowStatsToggle(){
1392         g_camwindow_globals_private.m_showStats ^= 1;
1393 }
1394 typedef FreeCaller<ShowStatsToggle> ShowStatsToggleCaller;
1395
1396 void ShowStatsExport( const BoolImportCallback& importer ){
1397         importer( g_camwindow_globals_private.m_showStats );
1398 }
1399 typedef FreeCaller1<const BoolImportCallback&, ShowStatsExport> ShowStatsExportCaller;
1400
1401 ShowStatsExportCaller g_show_stats_caller;
1402 BoolExportCallback g_show_stats_callback( g_show_stats_caller );
1403 ToggleItem g_show_stats( g_show_stats_callback );
1404
1405 void CamWnd::Cam_Draw(){
1406         glViewport( 0, 0, m_Camera.width, m_Camera.height );
1407 #if 0
1408         GLint viewprt[4];
1409         glGetIntegerv( GL_VIEWPORT, viewprt );
1410 #endif
1411
1412         // enable depth buffer writes
1413         glDepthMask( GL_TRUE );
1414         glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
1415
1416         Vector3 clearColour( 0, 0, 0 );
1417         if ( m_Camera.draw_mode != cd_lighting ) {
1418                 clearColour = g_camwindow_globals.color_cameraback;
1419         }
1420
1421         glClearColor( clearColour[0], clearColour[1], clearColour[2], 0 );
1422         glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
1423
1424         extern void Renderer_ResetStats();
1425         Renderer_ResetStats();
1426         extern void Cull_ResetStats();
1427         Cull_ResetStats();
1428
1429         glMatrixMode( GL_PROJECTION );
1430         glLoadMatrixf( reinterpret_cast<const float*>( &m_Camera.projection ) );
1431
1432         glMatrixMode( GL_MODELVIEW );
1433         glLoadMatrixf( reinterpret_cast<const float*>( &m_Camera.modelview ) );
1434
1435
1436         // one directional light source directly behind the viewer
1437         {
1438                 GLfloat inverse_cam_dir[4], ambient[4], diffuse[4]; //, material[4];
1439
1440                 ambient[0] = ambient[1] = ambient[2] = 0.4f;
1441                 ambient[3] = 1.0f;
1442                 diffuse[0] = diffuse[1] = diffuse[2] = 0.4f;
1443                 diffuse[3] = 1.0f;
1444                 //material[0] = material[1] = material[2] = 0.8f;
1445                 //material[3] = 1.0f;
1446
1447                 inverse_cam_dir[0] = m_Camera.vpn[0];
1448                 inverse_cam_dir[1] = m_Camera.vpn[1];
1449                 inverse_cam_dir[2] = m_Camera.vpn[2];
1450                 inverse_cam_dir[3] = 0;
1451
1452                 glLightfv( GL_LIGHT0, GL_POSITION, inverse_cam_dir );
1453
1454                 glLightfv( GL_LIGHT0, GL_AMBIENT, ambient );
1455                 glLightfv( GL_LIGHT0, GL_DIFFUSE, diffuse );
1456
1457                 glEnable( GL_LIGHT0 );
1458         }
1459
1460
1461         unsigned int globalstate = RENDER_DEPTHTEST | RENDER_COLOURWRITE | RENDER_DEPTHWRITE | RENDER_ALPHATEST | RENDER_BLEND | RENDER_CULLFACE | RENDER_COLOURARRAY | RENDER_OFFSETLINE | RENDER_POLYGONSMOOTH | RENDER_LINESMOOTH | RENDER_FOG | RENDER_COLOURCHANGE;
1462         switch ( m_Camera.draw_mode )
1463         {
1464         case cd_wire:
1465                 break;
1466         case cd_solid:
1467                 globalstate |= RENDER_FILL
1468                                            | RENDER_LIGHTING
1469                                            | RENDER_SMOOTH
1470                                            | RENDER_SCALED;
1471                 break;
1472         case cd_texture:
1473                 globalstate |= RENDER_FILL
1474                                            | RENDER_LIGHTING
1475                                            | RENDER_TEXTURE
1476                                            | RENDER_SMOOTH
1477                                            | RENDER_SCALED;
1478                 break;
1479         case cd_lighting:
1480                 globalstate |= RENDER_FILL
1481                                            | RENDER_LIGHTING
1482                                            | RENDER_TEXTURE
1483                                            | RENDER_SMOOTH
1484                                            | RENDER_SCALED
1485                                            | RENDER_BUMP
1486                                            | RENDER_PROGRAM
1487                                            | RENDER_SCREEN;
1488                 break;
1489         default:
1490                 globalstate = 0;
1491                 break;
1492         }
1493
1494         if ( !g_xywindow_globals.m_bNoStipple ) {
1495                 globalstate |= RENDER_LINESTIPPLE | RENDER_POLYGONSTIPPLE;
1496         }
1497
1498         {
1499                 CamRenderer renderer( globalstate, m_state_select2, m_state_select1, m_view.getViewer() );
1500
1501                 Scene_Render( renderer, m_view );
1502
1503                 renderer.render( m_Camera.modelview, m_Camera.projection );
1504         }
1505
1506         // prepare for 2d stuff
1507         glColor4f( 1, 1, 1, 1 );
1508         glDisable( GL_BLEND );
1509         glMatrixMode( GL_PROJECTION );
1510         glLoadIdentity();
1511         glOrtho( 0, (float)m_Camera.width, 0, (float)m_Camera.height, -100, 100 );
1512         glScalef( 1, -1, 1 );
1513         glTranslatef( 0, -(float)m_Camera.height, 0 );
1514         glMatrixMode( GL_MODELVIEW );
1515         glLoadIdentity();
1516
1517         if ( GlobalOpenGL().GL_1_3() ) {
1518                 glClientActiveTexture( GL_TEXTURE0 );
1519                 glActiveTexture( GL_TEXTURE0 );
1520         }
1521
1522         glDisableClientState( GL_TEXTURE_COORD_ARRAY );
1523         glDisableClientState( GL_NORMAL_ARRAY );
1524         glDisableClientState( GL_COLOR_ARRAY );
1525
1526         glDisable( GL_TEXTURE_2D );
1527         glDisable( GL_LIGHTING );
1528         glDisable( GL_COLOR_MATERIAL );
1529         glDisable( GL_DEPTH_TEST );
1530         glColor3f( 1.f, 1.f, 1.f );
1531         glLineWidth( 1 );
1532
1533         // draw the crosshair
1534         if ( m_bFreeMove ) {
1535                 glBegin( GL_LINES );
1536                 glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f + 6 );
1537                 glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f + 2 );
1538                 glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f - 6 );
1539                 glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f - 2 );
1540                 glVertex2f( (float)m_Camera.width / 2.f + 6, (float)m_Camera.height / 2.f );
1541                 glVertex2f( (float)m_Camera.width / 2.f + 2, (float)m_Camera.height / 2.f );
1542                 glVertex2f( (float)m_Camera.width / 2.f - 6, (float)m_Camera.height / 2.f );
1543                 glVertex2f( (float)m_Camera.width / 2.f - 2, (float)m_Camera.height / 2.f );
1544                 glEnd();
1545         }
1546
1547         if ( g_camwindow_globals_private.m_showStats ) {
1548                 glRasterPos3f( 1.0f, static_cast<float>( m_Camera.height ) - GlobalOpenGL().m_font->getPixelDescent(), 0.0f );
1549                 extern const char* Renderer_GetStats();
1550                 GlobalOpenGL().drawString( Renderer_GetStats() );
1551
1552                 glRasterPos3f( 1.0f, static_cast<float>( m_Camera.height ) - GlobalOpenGL().m_font->getPixelDescent() - GlobalOpenGL().m_font->getPixelHeight(), 0.0f );
1553                 extern const char* Cull_GetStats();
1554                 GlobalOpenGL().drawString( Cull_GetStats() );
1555         }
1556
1557         // bind back to the default texture so that we don't have problems
1558         // elsewhere using/modifying texture maps between contexts
1559         glBindTexture( GL_TEXTURE_2D, 0 );
1560 }
1561
1562 void CamWnd::draw(){
1563         m_drawing = true;
1564
1565         //globalOutputStream() << "draw...\n";
1566         if ( glwidget_make_current( m_gl_widget ) != FALSE ) {
1567                 if ( Map_Valid( g_map ) && ScreenUpdates_Enabled() ) {
1568                         GlobalOpenGL_debugAssertNoErrors();
1569                         Cam_Draw();
1570                         GlobalOpenGL_debugAssertNoErrors();
1571                         //qglFinish();
1572
1573                         m_XORRectangle.set( rectangle_t() );
1574                 }
1575
1576                 glwidget_swap_buffers( m_gl_widget );
1577         }
1578
1579         m_drawing = false;
1580 }
1581
1582 void CamWnd::BenchMark(){
1583         double dStart = Sys_DoubleTime();
1584         for ( int i = 0 ; i < 100 ; i++ )
1585         {
1586                 Vector3 angles;
1587                 angles[CAMERA_ROLL] = 0;
1588                 angles[CAMERA_PITCH] = 0;
1589                 angles[CAMERA_YAW] = static_cast<float>( i * ( 360.0 / 100.0 ) );
1590                 Camera_setAngles( *this, angles );
1591         }
1592         double dEnd = Sys_DoubleTime();
1593         globalOutputStream() << FloatFormat( dEnd - dStart, 5, 2 ) << " seconds\n";
1594 }
1595
1596
1597 void fill_view_camera_menu( ui::Menu menu ){
1598         create_check_menu_item_with_mnemonic( menu, "Camera View", "ToggleCamera" );
1599 }
1600
1601 void GlobalCamera_ResetAngles(){
1602         CamWnd& camwnd = *g_camwnd;
1603         Vector3 angles;
1604         angles[CAMERA_ROLL] = angles[CAMERA_PITCH] = 0;
1605         angles[CAMERA_YAW] = static_cast<float>( 22.5 * floor( ( Camera_getAngles( camwnd )[CAMERA_YAW] + 11 ) / 22.5 ) );
1606         Camera_setAngles( camwnd, angles );
1607 }
1608
1609 void Camera_ChangeFloorUp(){
1610         CamWnd& camwnd = *g_camwnd;
1611         camwnd.Cam_ChangeFloor( true );
1612 }
1613
1614 void Camera_ChangeFloorDown(){
1615         CamWnd& camwnd = *g_camwnd;
1616         camwnd.Cam_ChangeFloor( false );
1617 }
1618
1619 void Camera_CubeIn(){
1620         CamWnd& camwnd = *g_camwnd;
1621         g_camwindow_globals.m_nCubicScale--;
1622         if ( g_camwindow_globals.m_nCubicScale < 1 ) {
1623                 g_camwindow_globals.m_nCubicScale = 1;
1624         }
1625         Camera_updateProjection( camwnd.getCamera() );
1626         CamWnd_Update( camwnd );
1627         g_pParentWnd->SetGridStatus();
1628 }
1629
1630 void Camera_CubeOut(){
1631         CamWnd& camwnd = *g_camwnd;
1632         g_camwindow_globals.m_nCubicScale++;
1633         if ( g_camwindow_globals.m_nCubicScale > 23 ) {
1634                 g_camwindow_globals.m_nCubicScale = 23;
1635         }
1636         Camera_updateProjection( camwnd.getCamera() );
1637         CamWnd_Update( camwnd );
1638         g_pParentWnd->SetGridStatus();
1639 }
1640
1641 bool Camera_GetFarClip(){
1642         return g_camwindow_globals_private.m_bCubicClipping;
1643 }
1644
1645 BoolExportCaller g_getfarclip_caller( g_camwindow_globals_private.m_bCubicClipping );
1646 ToggleItem g_getfarclip_item( g_getfarclip_caller );
1647
1648 void Camera_SetFarClip( bool value ){
1649         CamWnd& camwnd = *g_camwnd;
1650         g_camwindow_globals_private.m_bCubicClipping = value;
1651         g_getfarclip_item.update();
1652         Camera_updateProjection( camwnd.getCamera() );
1653         CamWnd_Update( camwnd );
1654 }
1655
1656 void Camera_ToggleFarClip(){
1657         Camera_SetFarClip( !Camera_GetFarClip() );
1658 }
1659
1660
1661 void CamWnd_constructToolbar( ui::Toolbar toolbar ){
1662         toolbar_append_toggle_button( toolbar, "Cubic clip the camera view (\\)", "view_cubicclipping.png", "ToggleCubicClip" );
1663 }
1664
1665 void CamWnd_registerShortcuts(){
1666         toggle_add_accelerator( "ToggleCubicClip" );
1667
1668         if ( g_pGameDescription->mGameType == "doom3" ) {
1669                 command_connect_accelerator( "TogglePreview" );
1670         }
1671
1672         command_connect_accelerator( "CameraSpeedInc" );
1673         command_connect_accelerator( "CameraSpeedDec" );
1674 }
1675
1676
1677 void GlobalCamera_Benchmark(){
1678         CamWnd& camwnd = *g_camwnd;
1679         camwnd.BenchMark();
1680 }
1681
1682 void GlobalCamera_Update(){
1683         CamWnd& camwnd = *g_camwnd;
1684         CamWnd_Update( camwnd );
1685 }
1686
1687 camera_draw_mode CamWnd_GetMode(){
1688         return camera_t::draw_mode;
1689 }
1690 void CamWnd_SetMode( camera_draw_mode mode ){
1691         ShaderCache_setBumpEnabled( mode == cd_lighting );
1692         camera_t::draw_mode = mode;
1693         if ( g_camwnd != 0 ) {
1694                 CamWnd_Update( *g_camwnd );
1695         }
1696 }
1697
1698 void CamWnd_TogglePreview( void ){
1699         // gametype must be doom3 for this function to work
1700         // if the gametype is not doom3 something is wrong with the
1701         // global command list or somebody else calls this function.
1702         ASSERT_MESSAGE( g_pGameDescription->mGameType == "doom3", "CamWnd_TogglePreview called although mGameType is not doom3 compatible" );
1703
1704         // switch between textured and lighting mode
1705         CamWnd_SetMode( ( CamWnd_GetMode() == cd_lighting ) ? cd_texture : cd_lighting );
1706 }
1707
1708
1709 CameraModel* g_camera_model = 0;
1710
1711 void CamWnd_LookThroughCamera( CamWnd& camwnd ){
1712         if ( g_camera_model != 0 ) {
1713                 CamWnd_Add_Handlers_Move( camwnd );
1714                 g_camera_model->setCameraView( 0, Callback() );
1715                 g_camera_model = 0;
1716                 Camera_updateModelview( camwnd.getCamera() );
1717                 Camera_updateProjection( camwnd.getCamera() );
1718                 CamWnd_Update( camwnd );
1719         }
1720 }
1721
1722 inline CameraModel* Instance_getCameraModel( scene::Instance& instance ){
1723         return InstanceTypeCast<CameraModel>::cast( instance );
1724 }
1725
1726 void CamWnd_LookThroughSelected( CamWnd& camwnd ){
1727         if ( g_camera_model != 0 ) {
1728                 CamWnd_LookThroughCamera( camwnd );
1729         }
1730
1731         if ( GlobalSelectionSystem().countSelected() != 0 ) {
1732                 scene::Instance& instance = GlobalSelectionSystem().ultimateSelected();
1733                 CameraModel* cameraModel = Instance_getCameraModel( instance );
1734                 if ( cameraModel != 0 ) {
1735                         CamWnd_Remove_Handlers_Move( camwnd );
1736                         g_camera_model = cameraModel;
1737                         g_camera_model->setCameraView( &camwnd.getCameraView(), ReferenceCaller<CamWnd, CamWnd_LookThroughCamera>( camwnd ) );
1738                 }
1739         }
1740 }
1741
1742 void GlobalCamera_LookThroughSelected(){
1743         CamWnd_LookThroughSelected( *g_camwnd );
1744 }
1745
1746 void GlobalCamera_LookThroughCamera(){
1747         CamWnd_LookThroughCamera( *g_camwnd );
1748 }
1749
1750
1751 void RenderModeImport( int value ){
1752         switch ( value )
1753         {
1754         case 0:
1755                 CamWnd_SetMode( cd_wire );
1756                 break;
1757         case 1:
1758                 CamWnd_SetMode( cd_solid );
1759                 break;
1760         case 2:
1761                 CamWnd_SetMode( cd_texture );
1762                 break;
1763         case 3:
1764                 CamWnd_SetMode( cd_lighting );
1765                 break;
1766         default:
1767                 CamWnd_SetMode( cd_texture );
1768         }
1769 }
1770 typedef FreeCaller1<int, RenderModeImport> RenderModeImportCaller;
1771
1772 void RenderModeExport( const IntImportCallback& importer ){
1773         switch ( CamWnd_GetMode() )
1774         {
1775         case cd_wire:
1776                 importer( 0 );
1777                 break;
1778         case cd_solid:
1779                 importer( 1 );
1780                 break;
1781         case cd_texture:
1782                 importer( 2 );
1783                 break;
1784         case cd_lighting:
1785                 importer( 3 );
1786                 break;
1787         }
1788 }
1789 typedef FreeCaller1<const IntImportCallback&, RenderModeExport> RenderModeExportCaller;
1790
1791 void Camera_constructPreferences( PreferencesPage& page ){
1792         page.appendSlider( "Movement Speed", g_camwindow_globals_private.m_nMoveSpeed, TRUE, 0, 0, 100, MIN_CAM_SPEED, MAX_CAM_SPEED, 1, 10 );
1793         page.appendCheckBox( "", "Link strafe speed to movement speed", g_camwindow_globals_private.m_bCamLinkSpeed );
1794         page.appendSlider( "Rotation Speed", g_camwindow_globals_private.m_nAngleSpeed, TRUE, 0, 0, 3, 1, 180, 1, 10 );
1795         page.appendCheckBox( "", "Invert mouse vertical axis", g_camwindow_globals_private.m_bCamInverseMouse );
1796         page.appendCheckBox(
1797                 "", "Discrete movement",
1798                 FreeCaller1<bool, CamWnd_Move_Discrete_Import>(),
1799                 BoolExportCaller( g_camwindow_globals_private.m_bCamDiscrete )
1800                 );
1801         page.appendCheckBox(
1802                 "", "Enable far-clip plane",
1803                 FreeCaller1<bool, Camera_SetFarClip>(),
1804                 BoolExportCaller( g_camwindow_globals_private.m_bCubicClipping )
1805                 );
1806
1807         if ( g_pGameDescription->mGameType == "doom3" ) {
1808                 const char* render_mode[] = { "Wireframe", "Flatshade", "Textured", "Lighting" };
1809
1810                 page.appendCombo(
1811                         "Render Mode",
1812                         STRING_ARRAY_RANGE( render_mode ),
1813                         IntImportCallback( RenderModeImportCaller() ),
1814                         IntExportCallback( RenderModeExportCaller() )
1815                         );
1816         }
1817         else
1818         {
1819                 const char* render_mode[] = { "Wireframe", "Flatshade", "Textured" };
1820
1821                 page.appendCombo(
1822                         "Render Mode",
1823                         STRING_ARRAY_RANGE( render_mode ),
1824                         IntImportCallback( RenderModeImportCaller() ),
1825                         IntExportCallback( RenderModeExportCaller() )
1826                         );
1827         }
1828
1829         const char* strafe_mode[] = { "Both", "Forward", "Up" };
1830
1831         page.appendCombo(
1832                 "Strafe Mode",
1833                 g_camwindow_globals_private.m_nStrafeMode,
1834                 STRING_ARRAY_RANGE( strafe_mode )
1835                 );
1836 }
1837 void Camera_constructPage( PreferenceGroup& group ){
1838         PreferencesPage page( group.createPage( "Camera", "Camera View Preferences" ) );
1839         Camera_constructPreferences( page );
1840 }
1841 void Camera_registerPreferencesPage(){
1842         PreferencesDialog_addSettingsPage( FreeCaller1<PreferenceGroup&, Camera_constructPage>() );
1843 }
1844
1845 #include "preferencesystem.h"
1846 #include "stringio.h"
1847 #include "dialog.h"
1848
1849 typedef FreeCaller1<bool, CamWnd_Move_Discrete_Import> CamWndMoveDiscreteImportCaller;
1850
1851 void CameraSpeed_increase(){
1852         if ( g_camwindow_globals_private.m_nMoveSpeed <= ( MAX_CAM_SPEED - CAM_SPEED_STEP - 10 ) ) {
1853                 g_camwindow_globals_private.m_nMoveSpeed += CAM_SPEED_STEP;
1854         }
1855         else {
1856                 g_camwindow_globals_private.m_nMoveSpeed = MAX_CAM_SPEED - 10;
1857         }
1858 }
1859
1860 void CameraSpeed_decrease(){
1861         if ( g_camwindow_globals_private.m_nMoveSpeed >= ( MIN_CAM_SPEED + CAM_SPEED_STEP ) ) {
1862                 g_camwindow_globals_private.m_nMoveSpeed -= CAM_SPEED_STEP;
1863         }
1864         else {
1865                 g_camwindow_globals_private.m_nMoveSpeed = MIN_CAM_SPEED;
1866         }
1867 }
1868
1869 /// \brief Initialisation for things that have the same lifespan as this module.
1870 void CamWnd_Construct(){
1871         GlobalCommands_insert( "CenterView", FreeCaller<GlobalCamera_ResetAngles>(), Accelerator( GDK_KEY_End ) );
1872
1873         GlobalToggles_insert( "ToggleCubicClip", FreeCaller<Camera_ToggleFarClip>(), ToggleItem::AddCallbackCaller( g_getfarclip_item ), Accelerator( '\\', (GdkModifierType)GDK_CONTROL_MASK ) );
1874         GlobalCommands_insert( "CubicClipZoomIn", FreeCaller<Camera_CubeIn>(), Accelerator( '[', (GdkModifierType)GDK_CONTROL_MASK ) );
1875         GlobalCommands_insert( "CubicClipZoomOut", FreeCaller<Camera_CubeOut>(), Accelerator( ']', (GdkModifierType)GDK_CONTROL_MASK ) );
1876
1877         GlobalCommands_insert( "UpFloor", FreeCaller<Camera_ChangeFloorUp>(), Accelerator( GDK_KEY_Prior ) );
1878         GlobalCommands_insert( "DownFloor", FreeCaller<Camera_ChangeFloorDown>(), Accelerator( GDK_KEY_Next ) );
1879
1880         GlobalToggles_insert( "ToggleCamera", ToggleShown::ToggleCaller( g_camera_shown ), ToggleItem::AddCallbackCaller( g_camera_shown.m_item ), Accelerator( 'C', (GdkModifierType)( GDK_SHIFT_MASK | GDK_CONTROL_MASK ) ) );
1881         GlobalCommands_insert( "LookThroughSelected", FreeCaller<GlobalCamera_LookThroughSelected>() );
1882         GlobalCommands_insert( "LookThroughCamera", FreeCaller<GlobalCamera_LookThroughCamera>() );
1883
1884         if ( g_pGameDescription->mGameType == "doom3" ) {
1885                 GlobalCommands_insert( "TogglePreview", FreeCaller<CamWnd_TogglePreview>(), Accelerator( GDK_KEY_F3 ) );
1886         }
1887
1888         GlobalCommands_insert( "CameraSpeedInc", FreeCaller<CameraSpeed_increase>(), Accelerator( GDK_KEY_KP_Add, (GdkModifierType)GDK_SHIFT_MASK ) );
1889         GlobalCommands_insert( "CameraSpeedDec", FreeCaller<CameraSpeed_decrease>(), Accelerator( GDK_KEY_KP_Subtract, (GdkModifierType)GDK_SHIFT_MASK ) );
1890
1891         GlobalShortcuts_insert( "CameraForward", Accelerator( GDK_KEY_Up ) );
1892         GlobalShortcuts_insert( "CameraBack", Accelerator( GDK_KEY_Down ) );
1893         GlobalShortcuts_insert( "CameraLeft", Accelerator( GDK_KEY_Left ) );
1894         GlobalShortcuts_insert( "CameraRight", Accelerator( GDK_KEY_Right ) );
1895         GlobalShortcuts_insert( "CameraStrafeRight", Accelerator( GDK_KEY_period ) );
1896         GlobalShortcuts_insert( "CameraStrafeLeft", Accelerator( GDK_KEY_comma ) );
1897
1898         GlobalShortcuts_insert( "CameraUp", Accelerator( 'D' ) );
1899         GlobalShortcuts_insert( "CameraDown", Accelerator( 'C' ) );
1900         GlobalShortcuts_insert( "CameraAngleUp", Accelerator( 'A' ) );
1901         GlobalShortcuts_insert( "CameraAngleDown", Accelerator( 'Z' ) );
1902
1903         GlobalShortcuts_insert( "CameraFreeMoveForward", Accelerator( GDK_KEY_Up ) );
1904         GlobalShortcuts_insert( "CameraFreeMoveBack", Accelerator( GDK_KEY_Down ) );
1905         GlobalShortcuts_insert( "CameraFreeMoveLeft", Accelerator( GDK_KEY_Left ) );
1906         GlobalShortcuts_insert( "CameraFreeMoveRight", Accelerator( GDK_KEY_Right ) );
1907
1908         GlobalToggles_insert( "ShowStats", ShowStatsToggleCaller(), ToggleItem::AddCallbackCaller( g_show_stats ) );
1909
1910         GlobalPreferenceSystem().registerPreference( "ShowStats", BoolImportStringCaller( g_camwindow_globals_private.m_showStats ), BoolExportStringCaller( g_camwindow_globals_private.m_showStats ) );
1911         GlobalPreferenceSystem().registerPreference( "MoveSpeed", IntImportStringCaller( g_camwindow_globals_private.m_nMoveSpeed ), IntExportStringCaller( g_camwindow_globals_private.m_nMoveSpeed ) );
1912         GlobalPreferenceSystem().registerPreference( "CamLinkSpeed", BoolImportStringCaller( g_camwindow_globals_private.m_bCamLinkSpeed ), BoolExportStringCaller( g_camwindow_globals_private.m_bCamLinkSpeed ) );
1913         GlobalPreferenceSystem().registerPreference( "AngleSpeed", IntImportStringCaller( g_camwindow_globals_private.m_nAngleSpeed ), IntExportStringCaller( g_camwindow_globals_private.m_nAngleSpeed ) );
1914         GlobalPreferenceSystem().registerPreference( "CamInverseMouse", BoolImportStringCaller( g_camwindow_globals_private.m_bCamInverseMouse ), BoolExportStringCaller( g_camwindow_globals_private.m_bCamInverseMouse ) );
1915         GlobalPreferenceSystem().registerPreference( "CamDiscrete", makeBoolStringImportCallback( CamWndMoveDiscreteImportCaller() ), BoolExportStringCaller( g_camwindow_globals_private.m_bCamDiscrete ) );
1916         GlobalPreferenceSystem().registerPreference( "CubicClipping", BoolImportStringCaller( g_camwindow_globals_private.m_bCubicClipping ), BoolExportStringCaller( g_camwindow_globals_private.m_bCubicClipping ) );
1917         GlobalPreferenceSystem().registerPreference( "CubicScale", IntImportStringCaller( g_camwindow_globals.m_nCubicScale ), IntExportStringCaller( g_camwindow_globals.m_nCubicScale ) );
1918         GlobalPreferenceSystem().registerPreference( "SI_Colors4", Vector3ImportStringCaller( g_camwindow_globals.color_cameraback ), Vector3ExportStringCaller( g_camwindow_globals.color_cameraback ) );
1919         GlobalPreferenceSystem().registerPreference( "SI_Colors12", Vector3ImportStringCaller( g_camwindow_globals.color_selbrushes3d ), Vector3ExportStringCaller( g_camwindow_globals.color_selbrushes3d ) );
1920         GlobalPreferenceSystem().registerPreference( "CameraRenderMode", makeIntStringImportCallback( RenderModeImportCaller() ), makeIntStringExportCallback( RenderModeExportCaller() ) );
1921         GlobalPreferenceSystem().registerPreference( "StrafeMode", IntImportStringCaller( g_camwindow_globals_private.m_nStrafeMode ), IntExportStringCaller( g_camwindow_globals_private.m_nStrafeMode ) );
1922
1923         CamWnd_constructStatic();
1924
1925         Camera_registerPreferencesPage();
1926 }
1927 void CamWnd_Destroy(){
1928         CamWnd_destroyStatic();
1929 }