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 #include "texwindow.h" // TextureBrowser_ShowStartupShaders
  30
  31 #include <gtk/gtk.h>
  32 #include <gdk/gdkkeysyms.h>
  33
  34 #include "debugging/debugging.h"
  35
  36 #include "iscenegraph.h"
  37 #include "ishaders.h"
  38 #include "irender.h"
  39 #include "igl.h"
  40 #include "icamera.h"
  41 #include "textures.h"
  42 #include "cullable.h"
  43 #include "renderable.h"
  44 #include "preferencesystem.h"
  45
  46 #include "signal/signal.h"
  47 #include "container/array.h"
  48 #include "scenelib.h"
  49 #include "render.h"
  50 #include "cmdlib.h"
  51 #include "math/frustum.h"
  52
  53 #include "gtkutil/widget.h"
  54 #include "gtkutil/button.h"
  55 #include "gtkutil/toolbar.h"
  56 #include "gtkutil/glwidget.h"
  57 #include "gtkutil/xorrectangle.h"
  58 #include "gtkmisc.h"
  59 #include "selection.h"
  60 #include "mainframe.h"
  61 #include "preferences.h"
  62 #include "commands.h"
  63 #include "xywindow.h"
  64 #include "windowobservers.h"
  65 #include "renderstate.h"
  66
  67 #include "timer.h"
  68
  69 Signal0 g_cameraMoved_callbacks;
  70
  71 void AddCameraMovedCallback( const SignalHandler& handler ){
  72         g_cameraMoved_callbacks.connectLast( handler );
  73 }
  74
  75 void CameraMovedNotify(){
  76         g_cameraMoved_callbacks();
  77 }
  78
  79
  80 struct camwindow_globals_private_t
  81 {
  82         int m_nFOV;
  83         int m_nMoveSpeed;
  84         bool m_bCamLinkSpeed;
  85         int m_nAngleSpeed;
  86         bool m_bCamInverseMouse;
  87         bool m_bCamDiscrete;
  88         bool m_bCubicClipping;
  89         bool m_showStats;
  90         int m_nStrafeMode;
  91
  92         camwindow_globals_private_t() :
  93                 m_nFOV( 110 ),
  94                 m_nMoveSpeed( 100 ),
  95                 m_bCamLinkSpeed( true ),
  96                 m_nAngleSpeed( 3 ),
  97                 m_bCamInverseMouse( false ),
  98                 m_bCamDiscrete( true ),
  99                 m_bCubicClipping( true ),
 100                 m_showStats( true ),
 101                 m_nStrafeMode( 0 ){
 102         }
 103
 104 };
 105
 106 camwindow_globals_private_t g_camwindow_globals_private;
 107
 108
 109 const Matrix4 g_opengl2radiant(
 110         0, 0,-1, 0,
 111         -1, 0, 0, 0,
 112         0, 1, 0, 0,
 113         0, 0, 0, 1
 114         );
 115
 116 const Matrix4 g_radiant2opengl(
 117         0,-1, 0, 0,
 118         0, 0, 1, 0,
 119         -1, 0, 0, 0,
 120         0, 0, 0, 1
 121         );
 122
 123 struct camera_t;
 124 void Camera_mouseMove( camera_t& camera, int x, int y );
 125
 126 enum camera_draw_mode
 127 {
 128         cd_wire,
 129         cd_solid,
 130         cd_texture,
 131         cd_lighting
 132 };
 133
 134 struct camera_t
 135 {
 136         int width, height;
 137
 138         bool timing;
 139
 140         Vector3 origin;
 141         Vector3 angles;
 142
 143         Vector3 color; // background
 144
 145         Vector3 forward, right; // move matrix (TTimo: used to have up but it was not updated)
 146         Vector3 vup, vpn, vright; // view matrix (taken from the modelview matrix)
 147
 148         Matrix4 projection;
 149         Matrix4 modelview;
 150
 151         bool m_strafe; // true when in strafemode toggled by the ctrl-key
 152         bool m_strafe_forward; // true when in strafemode by ctrl-key and shift is pressed for forward strafing
 153
 154         unsigned int movementflags; // movement flags
 155         Timer m_keycontrol_timer;
 156         guint m_keymove_handler;
 157
 158
 159         DeferredMotionDelta m_mouseMove;
 160
 161         static void motionDelta( int x, int y, void* data ){
 162                 Camera_mouseMove( *reinterpret_cast<camera_t*>( data ), x, y );
 163         }
 164
 165         View* m_view;
 166         Callback<void()> m_update;
 167
 168         static camera_draw_mode draw_mode;
 169
 170         camera_t( View* view, const Callback<void()>& update )
 171                 : width( 0 ),
 172                 height( 0 ),
 173                 timing( false ),
 174                 origin( 0, 0, 0 ),
 175                 angles( 0, 0, 0 ),
 176                 color( 0, 0, 0 ),
 177                 projection( g_matrix4_identity ),
 178                 modelview( g_matrix4_identity ),
 179                 movementflags( 0 ),
 180                 m_keycontrol_timer(),
 181                 m_keymove_handler( 0 ),
 182                 m_mouseMove( motionDelta, this ),
 183                 m_view( view ),
 184                 m_update( update ){
 185         }
 186 };
 187
 188 camera_draw_mode camera_t::draw_mode = cd_texture;
 189
 190 inline Matrix4 projection_for_camera( float near_z, float far_z, float fieldOfView, int width, int height ){
 191         const float half_width = static_cast<float>( near_z * tan( degrees_to_radians( fieldOfView * 0.5 ) ) );
 192         const float half_height = half_width * ( static_cast<float>( height ) / static_cast<float>( width ) );
 193
 194         return matrix4_frustum(
 195                            -half_width,
 196                            half_width,
 197                            -half_height,
 198                            half_height,
 199                            near_z,
 200                            far_z
 201                            );
 202 }
 203
 204 float Camera_getFarClipPlane( camera_t& camera ){
 205         return ( g_camwindow_globals_private.m_bCubicClipping ) ? pow( 2.0, ( g_camwindow_globals.m_nCubicScale + 7 ) / 2.0 ) : 32768.0f;
 206 }
 207
 208 void Camera_updateProjection( camera_t& camera ){
 209         float farClip = Camera_getFarClipPlane( camera );
 210         camera.projection = projection_for_camera( farClip / 4096.0f, farClip, (float)g_camwindow_globals_private.m_nFOV, camera.width, camera.height );
 211
 212         camera.m_view->Construct( camera.projection, camera.modelview, camera.width, camera.height );
 213 }
 214
 215 void Camera_updateVectors( camera_t& camera ){
 216         for ( int i = 0 ; i < 3 ; i++ )
 217         {
 218                 camera.vright[i] = camera.modelview[( i << 2 ) + 0];
 219                 camera.vup[i] = camera.modelview[( i << 2 ) + 1];
 220                 camera.vpn[i] = camera.modelview[( i << 2 ) + 2];
 221         }
 222 }
 223
 224 void Camera_updateModelview( camera_t& camera ){
 225         camera.modelview = g_matrix4_identity;
 226
 227         // roll, pitch, yaw
 228         Vector3 radiant_eulerXYZ( 0, -camera.angles[CAMERA_PITCH], camera.angles[CAMERA_YAW] );
 229
 230         matrix4_translate_by_vec3( camera.modelview, camera.origin );
 231         matrix4_rotate_by_euler_xyz_degrees( camera.modelview, radiant_eulerXYZ );
 232         matrix4_multiply_by_matrix4( camera.modelview, g_radiant2opengl );
 233         matrix4_affine_invert( camera.modelview );
 234
 235         Camera_updateVectors( camera );
 236
 237         camera.m_view->Construct( camera.projection, camera.modelview, camera.width, camera.height );
 238 }
 239
 240
 241 void Camera_Move_updateAxes( camera_t& camera ){
 242         double ya = degrees_to_radians( camera.angles[CAMERA_YAW] );
 243
 244         // the movement matrix is kept 2d
 245         camera.forward[0] = static_cast<float>( cos( ya ) );
 246         camera.forward[1] = static_cast<float>( sin( ya ) );
 247         camera.forward[2] = 0;
 248         camera.right[0] = camera.forward[1];
 249         camera.right[1] = -camera.forward[0];
 250 }
 251
 252 void Camera_Freemove_updateAxes( camera_t& camera ){
 253         camera.right = camera.vright;
 254         camera.forward = vector3_negated( camera.vpn );
 255 }
 256
 257 const Vector3& Camera_getOrigin( camera_t& camera ){
 258         return camera.origin;
 259 }
 260
 261 void Camera_setOrigin( camera_t& camera, const Vector3& origin ){
 262         camera.origin = origin;
 263         Camera_updateModelview( camera );
 264         camera.m_update();
 265         CameraMovedNotify();
 266 }
 267
 268 const Vector3& Camera_getAngles( camera_t& camera ){
 269         return camera.angles;
 270 }
 271
 272 void Camera_setAngles( camera_t& camera, const Vector3& angles ){
 273         camera.angles = angles;
 274         Camera_updateModelview( camera );
 275         camera.m_update();
 276         CameraMovedNotify();
 277 }
 278
 279
 280 void Camera_FreeMove( camera_t& camera, int dx, int dy ){
 281         // free strafe mode, toggled by the ctrl key with optional shift for forward movement
 282         if ( camera.m_strafe ) {
 283                 float strafespeed = 0.65f;
 284
 285                 if ( g_camwindow_globals_private.m_bCamLinkSpeed ) {
 286                         strafespeed = (float)g_camwindow_globals_private.m_nMoveSpeed / 100;
 287                 }
 288
 289                 camera.origin -= camera.vright * strafespeed * dx;
 290                 if ( camera.m_strafe_forward ) {
 291                         camera.origin += camera.vpn * strafespeed * dy;
 292                 }
 293                 else{
 294                         camera.origin += camera.vup * strafespeed * dy;
 295                 }
 296         }
 297         else // free rotation
 298         {
 299                 const float dtime = 0.1f;
 300
 301                 if ( g_camwindow_globals_private.m_bCamInverseMouse ) {
 302                         camera.angles[CAMERA_PITCH] -= dy * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 303                 }
 304                 else{
 305                         camera.angles[CAMERA_PITCH] += dy * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 306                 }
 307
 308                 camera.angles[CAMERA_YAW] += dx * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 309
 310                 if ( camera.angles[CAMERA_PITCH] > 90 ) {
 311                         camera.angles[CAMERA_PITCH] = 90;
 312                 }
 313                 else if ( camera.angles[CAMERA_PITCH] < -90 ) {
 314                         camera.angles[CAMERA_PITCH] = -90;
 315                 }
 316
 317                 if ( camera.angles[CAMERA_YAW] >= 360 ) {
 318                         camera.angles[CAMERA_YAW] -= 360;
 319                 }
 320                 else if ( camera.angles[CAMERA_YAW] <= 0 ) {
 321                         camera.angles[CAMERA_YAW] += 360;
 322                 }
 323         }
 324
 325         Camera_updateModelview( camera );
 326         Camera_Freemove_updateAxes( camera );
 327 }
 328
 329 void Cam_MouseControl( camera_t& camera, int x, int y ){
 330         float xf = (float)( x - camera.width / 2 ) / ( camera.width / 2 );
 331         float yf = (float)( y - camera.height / 2 ) / ( camera.height / 2 );
 332
 333         xf *= 1.0f - fabsf( yf );
 334         if ( xf < 0 ) {
 335                 xf += 0.1f;
 336                 if ( xf > 0 ) {
 337                         xf = 0;
 338                 }
 339         }
 340         else
 341         {
 342                 xf -= 0.1f;
 343                 if ( xf < 0 ) {
 344                         xf = 0;
 345                 }
 346         }
 347
 348         vector3_add( camera.origin, vector3_scaled( camera.forward, yf * 0.1f * g_camwindow_globals_private.m_nMoveSpeed ) );
 349         camera.angles[CAMERA_YAW] += xf * -0.1f * g_camwindow_globals_private.m_nAngleSpeed;
 350
 351         Camera_updateModelview( camera );
 352 }
 353
 354 void Camera_mouseMove( camera_t& camera, int x, int y ){
 355         //globalOutputStream() << "mousemove... ";
 356         Camera_FreeMove( camera, -x, -y );
 357         camera.m_update();
 358         CameraMovedNotify();
 359 }
 360
 361 const unsigned int MOVE_NONE = 0;
 362 const unsigned int MOVE_FORWARD = 1 << 0;
 363 const unsigned int MOVE_BACK = 1 << 1;
 364 const unsigned int MOVE_ROTRIGHT = 1 << 2;
 365 const unsigned int MOVE_ROTLEFT = 1 << 3;
 366 const unsigned int MOVE_STRAFERIGHT = 1 << 4;
 367 const unsigned int MOVE_STRAFELEFT = 1 << 5;
 368 const unsigned int MOVE_UP = 1 << 6;
 369 const unsigned int MOVE_DOWN = 1 << 7;
 370 const unsigned int MOVE_PITCHUP = 1 << 8;
 371 const unsigned int MOVE_PITCHDOWN = 1 << 9;
 372 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;
 373
 374 void Cam_KeyControl( camera_t& camera, float dtime ){
 375         // Update angles
 376         if ( camera.movementflags & MOVE_ROTLEFT ) {
 377                 camera.angles[CAMERA_YAW] += 15 * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 378         }
 379         if ( camera.movementflags & MOVE_ROTRIGHT ) {
 380                 camera.angles[CAMERA_YAW] -= 15 * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 381         }
 382         if ( camera.movementflags & MOVE_PITCHUP ) {
 383                 camera.angles[CAMERA_PITCH] += 15 * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 384                 if ( camera.angles[CAMERA_PITCH] > 90 ) {
 385                         camera.angles[CAMERA_PITCH] = 90;
 386                 }
 387         }
 388         if ( camera.movementflags & MOVE_PITCHDOWN ) {
 389                 camera.angles[CAMERA_PITCH] -= 15 * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 390                 if ( camera.angles[CAMERA_PITCH] < -90 ) {
 391                         camera.angles[CAMERA_PITCH] = -90;
 392                 }
 393         }
 394
 395         Camera_updateModelview( camera );
 396         Camera_Freemove_updateAxes( camera );
 397
 398         // Update position
 399         if ( camera.movementflags & MOVE_FORWARD ) {
 400                 vector3_add( camera.origin, vector3_scaled( camera.forward, dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
 401         }
 402         if ( camera.movementflags & MOVE_BACK ) {
 403                 vector3_add( camera.origin, vector3_scaled( camera.forward, -dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
 404         }
 405         if ( camera.movementflags & MOVE_STRAFELEFT ) {
 406                 vector3_add( camera.origin, vector3_scaled( camera.right, -dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
 407         }
 408         if ( camera.movementflags & MOVE_STRAFERIGHT ) {
 409                 vector3_add( camera.origin, vector3_scaled( camera.right, dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
 410         }
 411         if ( camera.movementflags & MOVE_UP ) {
 412                 vector3_add( camera.origin, vector3_scaled( g_vector3_axis_z, dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
 413         }
 414         if ( camera.movementflags & MOVE_DOWN ) {
 415                 vector3_add( camera.origin, vector3_scaled( g_vector3_axis_z, -dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
 416         }
 417
 418         Camera_updateModelview( camera );
 419 }
 420
 421 void Camera_keyMove( camera_t& camera ){
 422         camera.m_mouseMove.flush();
 423
 424         //globalOutputStream() << "keymove... ";
 425         float time_seconds = camera.m_keycontrol_timer.elapsed_msec() / static_cast<float>( msec_per_sec );
 426         camera.m_keycontrol_timer.start();
 427         if ( time_seconds > 0.05f ) {
 428                 time_seconds = 0.05f; // 20fps
 429         }
 430         Cam_KeyControl( camera, time_seconds * 5.0f );
 431
 432         camera.m_update();
 433         CameraMovedNotify();
 434 }
 435
 436 gboolean camera_keymove( gpointer data ){
 437         Camera_keyMove( *reinterpret_cast<camera_t*>( data ) );
 438         return TRUE;
 439 }
 440
 441 void Camera_setMovementFlags( camera_t& camera, unsigned int mask ){
 442         if ( ( ~camera.movementflags & mask ) != 0 && camera.movementflags == 0 ) {
 443                 camera.m_keymove_handler = g_idle_add( camera_keymove, &camera );
 444         }
 445         camera.movementflags |= mask;
 446 }
 447 void Camera_clearMovementFlags( camera_t& camera, unsigned int mask ){
 448         if ( ( camera.movementflags & ~mask ) == 0 && camera.movementflags != 0 ) {
 449                 g_source_remove( camera.m_keymove_handler );
 450                 camera.m_keymove_handler = 0;
 451         }
 452         camera.movementflags &= ~mask;
 453 }
 454
 455 void Camera_MoveForward_KeyDown( camera_t& camera ){
 456         Camera_setMovementFlags( camera, MOVE_FORWARD );
 457 }
 458 void Camera_MoveForward_KeyUp( camera_t& camera ){
 459         Camera_clearMovementFlags( camera, MOVE_FORWARD );
 460 }
 461 void Camera_MoveBack_KeyDown( camera_t& camera ){
 462         Camera_setMovementFlags( camera, MOVE_BACK );
 463 }
 464 void Camera_MoveBack_KeyUp( camera_t& camera ){
 465         Camera_clearMovementFlags( camera, MOVE_BACK );
 466 }
 467
 468 void Camera_MoveLeft_KeyDown( camera_t& camera ){
 469         Camera_setMovementFlags( camera, MOVE_STRAFELEFT );
 470 }
 471 void Camera_MoveLeft_KeyUp( camera_t& camera ){
 472         Camera_clearMovementFlags( camera, MOVE_STRAFELEFT );
 473 }
 474 void Camera_MoveRight_KeyDown( camera_t& camera ){
 475         Camera_setMovementFlags( camera, MOVE_STRAFERIGHT );
 476 }
 477 void Camera_MoveRight_KeyUp( camera_t& camera ){
 478         Camera_clearMovementFlags( camera, MOVE_STRAFERIGHT );
 479 }
 480
 481 void Camera_MoveUp_KeyDown( camera_t& camera ){
 482         Camera_setMovementFlags( camera, MOVE_UP );
 483 }
 484 void Camera_MoveUp_KeyUp( camera_t& camera ){
 485         Camera_clearMovementFlags( camera, MOVE_UP );
 486 }
 487 void Camera_MoveDown_KeyDown( camera_t& camera ){
 488         Camera_setMovementFlags( camera, MOVE_DOWN );
 489 }
 490 void Camera_MoveDown_KeyUp( camera_t& camera ){
 491         Camera_clearMovementFlags( camera, MOVE_DOWN );
 492 }
 493
 494 void Camera_RotateLeft_KeyDown( camera_t& camera ){
 495         Camera_setMovementFlags( camera, MOVE_ROTLEFT );
 496 }
 497 void Camera_RotateLeft_KeyUp( camera_t& camera ){
 498         Camera_clearMovementFlags( camera, MOVE_ROTLEFT );
 499 }
 500 void Camera_RotateRight_KeyDown( camera_t& camera ){
 501         Camera_setMovementFlags( camera, MOVE_ROTRIGHT );
 502 }
 503 void Camera_RotateRight_KeyUp( camera_t& camera ){
 504         Camera_clearMovementFlags( camera, MOVE_ROTRIGHT );
 505 }
 506
 507 void Camera_PitchUp_KeyDown( camera_t& camera ){
 508         Camera_setMovementFlags( camera, MOVE_PITCHUP );
 509 }
 510 void Camera_PitchUp_KeyUp( camera_t& camera ){
 511         Camera_clearMovementFlags( camera, MOVE_PITCHUP );
 512 }
 513 void Camera_PitchDown_KeyDown( camera_t& camera ){
 514         Camera_setMovementFlags( camera, MOVE_PITCHDOWN );
 515 }
 516 void Camera_PitchDown_KeyUp( camera_t& camera ){
 517         Camera_clearMovementFlags( camera, MOVE_PITCHDOWN );
 518 }
 519
 520
 521 typedef ReferenceCaller<camera_t, void(), &Camera_MoveForward_KeyDown> FreeMoveCameraMoveForwardKeyDownCaller;
 522 typedef ReferenceCaller<camera_t, void(), &Camera_MoveForward_KeyUp> FreeMoveCameraMoveForwardKeyUpCaller;
 523 typedef ReferenceCaller<camera_t, void(), &Camera_MoveBack_KeyDown> FreeMoveCameraMoveBackKeyDownCaller;
 524 typedef ReferenceCaller<camera_t, void(), &Camera_MoveBack_KeyUp> FreeMoveCameraMoveBackKeyUpCaller;
 525 typedef ReferenceCaller<camera_t, void(), &Camera_MoveLeft_KeyDown> FreeMoveCameraMoveLeftKeyDownCaller;
 526 typedef ReferenceCaller<camera_t, void(), &Camera_MoveLeft_KeyUp> FreeMoveCameraMoveLeftKeyUpCaller;
 527 typedef ReferenceCaller<camera_t, void(), &Camera_MoveRight_KeyDown> FreeMoveCameraMoveRightKeyDownCaller;
 528 typedef ReferenceCaller<camera_t, void(), &Camera_MoveRight_KeyUp> FreeMoveCameraMoveRightKeyUpCaller;
 529 typedef ReferenceCaller<camera_t, void(), &Camera_MoveUp_KeyDown> FreeMoveCameraMoveUpKeyDownCaller;
 530 typedef ReferenceCaller<camera_t, void(), &Camera_MoveUp_KeyUp> FreeMoveCameraMoveUpKeyUpCaller;
 531 typedef ReferenceCaller<camera_t, void(), &Camera_MoveDown_KeyDown> FreeMoveCameraMoveDownKeyDownCaller;
 532 typedef ReferenceCaller<camera_t, void(), &Camera_MoveDown_KeyUp> FreeMoveCameraMoveDownKeyUpCaller;
 533
 534
 535 const float MIN_FOV = 60;
 536 const float MAX_FOV = 179;
 537 const float FOV_STEP = 10;
 538 const float SPEED_MOVE = 32;
 539 const float SPEED_TURN = 22.5;
 540 const float MIN_CAM_SPEED = 10;
 541 const float MAX_CAM_SPEED = 610;
 542 const float CAM_SPEED_STEP = 50;
 543
 544 void Camera_MoveForward_Discrete( camera_t& camera ){
 545         Camera_Move_updateAxes( camera );
 546         Camera_setOrigin( camera, vector3_added( Camera_getOrigin( camera ), vector3_scaled( camera.forward, SPEED_MOVE ) ) );
 547 }
 548 void Camera_MoveBack_Discrete( camera_t& camera ){
 549         Camera_Move_updateAxes( camera );
 550         Camera_setOrigin( camera, vector3_added( Camera_getOrigin( camera ), vector3_scaled( camera.forward, -SPEED_MOVE ) ) );
 551 }
 552
 553 void Camera_MoveUp_Discrete( camera_t& camera ){
 554         Vector3 origin( Camera_getOrigin( camera ) );
 555         origin[2] += SPEED_MOVE;
 556         Camera_setOrigin( camera, origin );
 557 }
 558 void Camera_MoveDown_Discrete( camera_t& camera ){
 559         Vector3 origin( Camera_getOrigin( camera ) );
 560         origin[2] -= SPEED_MOVE;
 561         Camera_setOrigin( camera, origin );
 562 }
 563
 564 void Camera_MoveLeft_Discrete( camera_t& camera ){
 565         Camera_Move_updateAxes( camera );
 566         Camera_setOrigin( camera, vector3_added( Camera_getOrigin( camera ), vector3_scaled( camera.right, -SPEED_MOVE ) ) );
 567 }
 568 void Camera_MoveRight_Discrete( camera_t& camera ){
 569         Camera_Move_updateAxes( camera );
 570         Camera_setOrigin( camera, vector3_added( Camera_getOrigin( camera ), vector3_scaled( camera.right, SPEED_MOVE ) ) );
 571 }
 572
 573 void Camera_RotateLeft_Discrete( camera_t& camera ){
 574         Vector3 angles( Camera_getAngles( camera ) );
 575         angles[CAMERA_YAW] += SPEED_TURN;
 576         Camera_setAngles( camera, angles );
 577 }
 578 void Camera_RotateRight_Discrete( camera_t& camera ){
 579         Vector3 angles( Camera_getAngles( camera ) );
 580         angles[CAMERA_YAW] -= SPEED_TURN;
 581         Camera_setAngles( camera, angles );
 582 }
 583
 584 void Camera_PitchUp_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 void Camera_PitchDown_Discrete( camera_t& camera ){
 593         Vector3 angles( Camera_getAngles( camera ) );
 594         angles[CAMERA_PITCH] -= SPEED_TURN;
 595         if ( angles[CAMERA_PITCH] < -90 ) {
 596                 angles[CAMERA_PITCH] = -90;
 597         }
 598         Camera_setAngles( camera, angles );
 599 }
 600
 601
 602 class RadiantCameraView : public CameraView
 603 {
 604 camera_t& m_camera;
 605 View* m_view;
 606 Callback<void()> m_update;
 607 public:
 608 RadiantCameraView( camera_t& camera, View* view, const Callback<void()>& update ) : m_camera( camera ), m_view( view ), m_update( update ){
 609 }
 610 void update(){
 611         m_view->Construct( m_camera.projection, m_camera.modelview, m_camera.width, m_camera.height );
 612         m_update();
 613 }
 614 void setModelview( const Matrix4& modelview ){
 615         m_camera.modelview = modelview;
 616         matrix4_multiply_by_matrix4( m_camera.modelview, g_radiant2opengl );
 617         matrix4_affine_invert( m_camera.modelview );
 618         Camera_updateVectors( m_camera );
 619         update();
 620 }
 621 void setFieldOfView( float fieldOfView ){
 622         float farClip = Camera_getFarClipPlane( m_camera );
 623         m_camera.projection = projection_for_camera( farClip / 4096.0f, farClip, fieldOfView, m_camera.width, m_camera.height );
 624         update();
 625 }
 626 };
 627
 628
 629 void Camera_motionDelta( int x, int y, unsigned int state, void* data ){
 630         camera_t* cam = reinterpret_cast<camera_t*>( data );
 631
 632         cam->m_mouseMove.motion_delta( x, y, state );
 633
 634         switch ( g_camwindow_globals_private.m_nStrafeMode )
 635         {
 636         case 0:
 637                 cam->m_strafe = ( state & GDK_CONTROL_MASK ) != 0;
 638                 if ( cam->m_strafe ) {
 639                         cam->m_strafe_forward = ( state & GDK_SHIFT_MASK ) != 0;
 640                 }
 641                 else{
 642                         cam->m_strafe_forward = false;
 643                 }
 644                 break;
 645         case 1:
 646                 cam->m_strafe = ( state & GDK_CONTROL_MASK ) != 0 && ( state & GDK_SHIFT_MASK ) == 0;
 647                 cam->m_strafe_forward = false;
 648                 break;
 649         case 2:
 650                 cam->m_strafe = ( state & GDK_CONTROL_MASK ) != 0 && ( state & GDK_SHIFT_MASK ) == 0;
 651                 cam->m_strafe_forward = cam->m_strafe;
 652                 break;
 653         }
 654 }
 655
 656 class CamWnd
 657 {
 658 View m_view;
 659 camera_t m_Camera;
 660 RadiantCameraView m_cameraview;
 661 #if 0
 662 int m_PositionDragCursorX;
 663 int m_PositionDragCursorY;
 664 #endif
 665
 666 guint m_freemove_handle_focusout;
 667
 668 static Shader* m_state_select1;
 669 static Shader* m_state_select2;
 670
 671 FreezePointer m_freezePointer;
 672
 673 public:
 674 ui::GLArea m_gl_widget;
 675 ui::Window m_parent{ui::null};
 676
 677 SelectionSystemWindowObserver* m_window_observer;
 678 XORRectangle m_XORRectangle;
 679
 680 DeferredDraw m_deferredDraw;
 681 DeferredMotion m_deferred_motion;
 682
 683 guint m_selection_button_press_handler;
 684 guint m_selection_button_release_handler;
 685 guint m_selection_motion_handler;
 686
 687 guint m_freelook_button_press_handler;
 688
 689 guint m_sizeHandler;
 690 guint m_exposeHandler;
 691
 692 CamWnd();
 693 ~CamWnd();
 694
 695 bool m_drawing;
 696 void queue_draw(){
 697         //ASSERT_MESSAGE(!m_drawing, "CamWnd::queue_draw(): called while draw is already in progress");
 698         if ( m_drawing ) {
 699                 return;
 700         }
 701         //globalOutputStream() << "queue... ";
 702         m_deferredDraw.draw();
 703 }
 704 void draw();
 705
 706 static void captureStates(){
 707         m_state_select1 = GlobalShaderCache().capture( "$CAM_HIGHLIGHT" );
 708         m_state_select2 = GlobalShaderCache().capture( "$CAM_OVERLAY" );
 709 }
 710 static void releaseStates(){
 711         GlobalShaderCache().release( "$CAM_HIGHLIGHT" );
 712         GlobalShaderCache().release( "$CAM_OVERLAY" );
 713 }
 714
 715 camera_t& getCamera(){
 716         return m_Camera;
 717 };
 718
 719 void BenchMark();
 720 void Cam_ChangeFloor( bool up );
 721
 722 void DisableFreeMove();
 723 void EnableFreeMove();
 724 bool m_bFreeMove;
 725
 726 CameraView& getCameraView(){
 727         return m_cameraview;
 728 }
 729
 730 private:
 731 void Cam_Clear();
 732 void Cam_Init_World();
 733 void Cam_Draw();
 734 };
 735
 736 typedef MemberCaller<CamWnd, void(), &CamWnd::queue_draw> CamWndQueueDraw;
 737
 738 Shader* CamWnd::m_state_select1 = 0;
 739 Shader* CamWnd::m_state_select2 = 0;
 740
 741 CamWnd* NewCamWnd(){
 742         return new CamWnd;
 743 }
 744 void DeleteCamWnd( CamWnd* camwnd ){
 745         delete camwnd;
 746 }
 747
 748 void CamWnd_constructStatic(){
 749         CamWnd::captureStates();
 750 }
 751
 752 void CamWnd_destroyStatic(){
 753         CamWnd::releaseStates();
 754 }
 755
 756 static CamWnd* g_camwnd = 0;
 757
 758 void GlobalCamera_setCamWnd( CamWnd& camwnd ){
 759         g_camwnd = &camwnd;
 760 }
 761
 762
 763 ui::GLArea CamWnd_getWidget( CamWnd& camwnd ){
 764         return camwnd.m_gl_widget;
 765 }
 766
 767 ui::Window CamWnd_getParent( CamWnd& camwnd ){
 768         return camwnd.m_parent;
 769 }
 770
 771 ToggleShown g_camera_shown( true );
 772
 773 void CamWnd_setParent( CamWnd& camwnd, ui::Window parent ){
 774         camwnd.m_parent = parent;
 775         g_camera_shown.connect( camwnd.m_parent );
 776 }
 777
 778 void CamWnd_Update( CamWnd& camwnd ){
 779         camwnd.queue_draw();
 780 }
 781
 782 camwindow_globals_t g_camwindow_globals;
 783
 784 const Vector3& Camera_getOrigin( CamWnd& camwnd ){
 785         return Camera_getOrigin( camwnd.getCamera() );
 786 }
 787
 788 void Camera_setOrigin( CamWnd& camwnd, const Vector3& origin ){
 789         Camera_setOrigin( camwnd.getCamera(), origin );
 790 }
 791
 792 const Vector3& Camera_getAngles( CamWnd& camwnd ){
 793         return Camera_getAngles( camwnd.getCamera() );
 794 }
 795
 796 void Camera_setAngles( CamWnd& camwnd, const Vector3& angles ){
 797         Camera_setAngles( camwnd.getCamera(), angles );
 798 }
 799
 800
 801 // =============================================================================
 802 // CamWnd class
 803
 804 gboolean enable_freelook_button_press( ui::Widget widget, GdkEventButton* event, CamWnd* camwnd ){
 805         if ( event->type == GDK_BUTTON_PRESS && event->button == 3 ) {
 806                 camwnd->EnableFreeMove();
 807                 return TRUE;
 808         }
 809         return FALSE;
 810 }
 811
 812 gboolean disable_freelook_button_press( ui::Widget widget, GdkEventButton* event, CamWnd* camwnd ){
 813         if ( event->type == GDK_BUTTON_PRESS && event->button == 3 ) {
 814                 camwnd->DisableFreeMove();
 815                 return TRUE;
 816         }
 817         return FALSE;
 818 }
 819
 820 #if 0
 821 gboolean mousecontrol_button_press( ui::Widget widget, GdkEventButton* event, CamWnd* camwnd ){
 822         if ( event->type == GDK_BUTTON_PRESS && event->button == 3 ) {
 823                 Cam_MouseControl( camwnd->getCamera(), event->x, widget->allocation.height - 1 - event->y );
 824         }
 825         return FALSE;
 826 }
 827 #endif
 828
 829 void camwnd_update_xor_rectangle( CamWnd& self, rect_t area ){
 830         if ( self.m_gl_widget.visible() ) {
 831                 self.m_XORRectangle.set( rectangle_from_area( area.min, area.max, self.getCamera().width, self.getCamera().height ) );
 832         }
 833 }
 834
 835
 836 gboolean selection_button_press( ui::Widget widget, GdkEventButton* event, WindowObserver* observer ){
 837         if ( event->type == GDK_BUTTON_PRESS ) {
 838                 observer->onMouseDown( WindowVector_forDouble( event->x, event->y ), button_for_button( event->button ), modifiers_for_state( event->state ) );
 839         }
 840         return FALSE;
 841 }
 842
 843 gboolean selection_button_release( ui::Widget widget, GdkEventButton* event, WindowObserver* observer ){
 844         if ( event->type == GDK_BUTTON_RELEASE ) {
 845                 observer->onMouseUp( WindowVector_forDouble( event->x, event->y ), button_for_button( event->button ), modifiers_for_state( event->state ) );
 846         }
 847         return FALSE;
 848 }
 849
 850 void selection_motion( gdouble x, gdouble y, guint state, void* data ){
 851         //globalOutputStream() << "motion... ";
 852         reinterpret_cast<WindowObserver*>( data )->onMouseMotion( WindowVector_forDouble( x, y ), modifiers_for_state( state ) );
 853 }
 854
 855 inline WindowVector windowvector_for_widget_centre( ui::Widget widget ){
 856         auto allocation = widget.dimensions();
 857         return WindowVector( static_cast<float>( allocation.width / 2 ), static_cast<float>(allocation.height / 2 ) );
 858 }
 859
 860 gboolean selection_button_press_freemove( ui::Widget widget, GdkEventButton* event, WindowObserver* observer ){
 861         if ( event->type == GDK_BUTTON_PRESS ) {
 862                 observer->onMouseDown( windowvector_for_widget_centre( widget ), button_for_button( event->button ), modifiers_for_state( event->state ) );
 863         }
 864         return FALSE;
 865 }
 866
 867 gboolean selection_button_release_freemove( ui::Widget widget, GdkEventButton* event, WindowObserver* observer ){
 868         if ( event->type == GDK_BUTTON_RELEASE ) {
 869                 observer->onMouseUp( windowvector_for_widget_centre( widget ), button_for_button( event->button ), modifiers_for_state( event->state ) );
 870         }
 871         return FALSE;
 872 }
 873
 874 gboolean selection_motion_freemove( ui::Widget widget, GdkEventMotion *event, WindowObserver* observer ){
 875         observer->onMouseMotion( windowvector_for_widget_centre( widget ), modifiers_for_state( event->state ) );
 876         return FALSE;
 877 }
 878
 879 gboolean wheelmove_scroll( ui::Widget widget, GdkEventScroll* event, CamWnd* camwnd ){
 880         if ( event->direction == GDK_SCROLL_UP ) {
 881                 Camera_Freemove_updateAxes( camwnd->getCamera() );
 882                 Camera_setOrigin( *camwnd, vector3_added( Camera_getOrigin( *camwnd ), vector3_scaled( camwnd->getCamera().forward, static_cast<float>( g_camwindow_globals_private.m_nMoveSpeed ) ) ) );
 883         }
 884         else if ( event->direction == GDK_SCROLL_DOWN ) {
 885                 Camera_Freemove_updateAxes( camwnd->getCamera() );
 886                 Camera_setOrigin( *camwnd, vector3_added( Camera_getOrigin( *camwnd ), vector3_scaled( camwnd->getCamera().forward, -static_cast<float>( g_camwindow_globals_private.m_nMoveSpeed ) ) ) );
 887         }
 888
 889         return FALSE;
 890 }
 891
 892 gboolean camera_size_allocate( ui::Widget widget, GtkAllocation* allocation, CamWnd* camwnd ){
 893         camwnd->getCamera().width = allocation->width;
 894         camwnd->getCamera().height = allocation->height;
 895         Camera_updateProjection( camwnd->getCamera() );
 896         camwnd->m_window_observer->onSizeChanged( camwnd->getCamera().width, camwnd->getCamera().height );
 897         camwnd->queue_draw();
 898         return FALSE;
 899 }
 900
 901 gboolean camera_expose( ui::Widget widget, GdkEventExpose* event, gpointer data ){
 902         reinterpret_cast<CamWnd*>( data )->draw();
 903         return FALSE;
 904 }
 905
 906 void KeyEvent_connect( const char* name ){
 907         const KeyEvent& keyEvent = GlobalKeyEvents_find( name );
 908         keydown_accelerators_add( keyEvent.m_accelerator, keyEvent.m_keyDown );
 909         keyup_accelerators_add( keyEvent.m_accelerator, keyEvent.m_keyUp );
 910 }
 911
 912 void KeyEvent_disconnect( const char* name ){
 913         const KeyEvent& keyEvent = GlobalKeyEvents_find( name );
 914         keydown_accelerators_remove( keyEvent.m_accelerator );
 915         keyup_accelerators_remove( keyEvent.m_accelerator );
 916 }
 917
 918 void CamWnd_registerCommands( CamWnd& camwnd ){
 919         GlobalKeyEvents_insert( "CameraForward", Accelerator( GDK_KEY_Up ),
 920                                                         ReferenceCaller<camera_t, void(), Camera_MoveForward_KeyDown>( camwnd.getCamera() ),
 921                                                         ReferenceCaller<camera_t, void(), Camera_MoveForward_KeyUp>( camwnd.getCamera() )
 922                                                         );
 923         GlobalKeyEvents_insert( "CameraBack", Accelerator( GDK_KEY_Down ),
 924                                                         ReferenceCaller<camera_t, void(), Camera_MoveBack_KeyDown>( camwnd.getCamera() ),
 925                                                         ReferenceCaller<camera_t, void(), Camera_MoveBack_KeyUp>( camwnd.getCamera() )
 926                                                         );
 927         GlobalKeyEvents_insert( "CameraLeft", Accelerator( GDK_KEY_Left ),
 928                                                         ReferenceCaller<camera_t, void(), Camera_RotateLeft_KeyDown>( camwnd.getCamera() ),
 929                                                         ReferenceCaller<camera_t, void(), Camera_RotateLeft_KeyUp>( camwnd.getCamera() )
 930                                                         );
 931         GlobalKeyEvents_insert( "CameraRight", Accelerator( GDK_KEY_Right ),
 932                                                         ReferenceCaller<camera_t, void(), Camera_RotateRight_KeyDown>( camwnd.getCamera() ),
 933                                                         ReferenceCaller<camera_t, void(), Camera_RotateRight_KeyUp>( camwnd.getCamera() )
 934                                                         );
 935         GlobalKeyEvents_insert( "CameraStrafeRight", Accelerator( GDK_KEY_period ),
 936                                                         ReferenceCaller<camera_t, void(), Camera_MoveRight_KeyDown>( camwnd.getCamera() ),
 937                                                         ReferenceCaller<camera_t, void(), Camera_MoveRight_KeyUp>( camwnd.getCamera() )
 938                                                         );
 939         GlobalKeyEvents_insert( "CameraStrafeLeft", Accelerator( GDK_KEY_comma ),
 940                                                         ReferenceCaller<camera_t, void(), Camera_MoveLeft_KeyDown>( camwnd.getCamera() ),
 941                                                         ReferenceCaller<camera_t, void(), Camera_MoveLeft_KeyUp>( camwnd.getCamera() )
 942                                                         );
 943         GlobalKeyEvents_insert( "CameraUp", Accelerator( 'D' ),
 944                                                         ReferenceCaller<camera_t, void(), Camera_MoveUp_KeyDown>( camwnd.getCamera() ),
 945                                                         ReferenceCaller<camera_t, void(), Camera_MoveUp_KeyUp>( camwnd.getCamera() )
 946                                                         );
 947         GlobalKeyEvents_insert( "CameraDown", Accelerator( 'C' ),
 948                                                         ReferenceCaller<camera_t, void(), Camera_MoveDown_KeyDown>( camwnd.getCamera() ),
 949                                                         ReferenceCaller<camera_t, void(), Camera_MoveDown_KeyUp>( camwnd.getCamera() )
 950                                                         );
 951         GlobalKeyEvents_insert( "CameraAngleDown", Accelerator( 'A' ),
 952                                                         ReferenceCaller<camera_t, void(), Camera_PitchDown_KeyDown>( camwnd.getCamera() ),
 953                                                         ReferenceCaller<camera_t, void(), Camera_PitchDown_KeyUp>( camwnd.getCamera() )
 954                                                         );
 955         GlobalKeyEvents_insert( "CameraAngleUp", Accelerator( 'Z' ),
 956                                                         ReferenceCaller<camera_t, void(), Camera_PitchUp_KeyDown>( camwnd.getCamera() ),
 957                                                         ReferenceCaller<camera_t, void(), Camera_PitchUp_KeyUp>( camwnd.getCamera() )
 958                                                         );
 959
 960         GlobalKeyEvents_insert( "CameraFreeMoveForward", Accelerator( GDK_KEY_Up ),
 961                                                         FreeMoveCameraMoveForwardKeyDownCaller( camwnd.getCamera() ),
 962                                                         FreeMoveCameraMoveForwardKeyUpCaller( camwnd.getCamera() )
 963                                                         );
 964         GlobalKeyEvents_insert( "CameraFreeMoveBack", Accelerator( GDK_KEY_Down ),
 965                                                         FreeMoveCameraMoveBackKeyDownCaller( camwnd.getCamera() ),
 966                                                         FreeMoveCameraMoveBackKeyUpCaller( camwnd.getCamera() )
 967                                                         );
 968         GlobalKeyEvents_insert( "CameraFreeMoveLeft", Accelerator( GDK_KEY_Left ),
 969                                                         FreeMoveCameraMoveLeftKeyDownCaller( camwnd.getCamera() ),
 970                                                         FreeMoveCameraMoveLeftKeyUpCaller( camwnd.getCamera() )
 971                                                         );
 972         GlobalKeyEvents_insert( "CameraFreeMoveRight", Accelerator( GDK_KEY_Right ),
 973                                                         FreeMoveCameraMoveRightKeyDownCaller( camwnd.getCamera() ),
 974                                                         FreeMoveCameraMoveRightKeyUpCaller( camwnd.getCamera() )
 975                                                         );
 976         GlobalKeyEvents_insert( "CameraFreeMoveUp", Accelerator( 'D' ),
 977                                                         FreeMoveCameraMoveUpKeyDownCaller( camwnd.getCamera() ),
 978                                                         FreeMoveCameraMoveUpKeyUpCaller( camwnd.getCamera() )
 979                                                         );
 980         GlobalKeyEvents_insert( "CameraFreeMoveDown", Accelerator( 'C' ),
 981                                                         FreeMoveCameraMoveDownKeyDownCaller( camwnd.getCamera() ),
 982                                                         FreeMoveCameraMoveDownKeyUpCaller( camwnd.getCamera() )
 983                                                         );
 984
 985         GlobalCommands_insert( "CameraForward", ReferenceCaller<camera_t, void(), Camera_MoveForward_Discrete>( camwnd.getCamera() ), Accelerator( GDK_KEY_Up ) );
 986         GlobalCommands_insert( "CameraBack", ReferenceCaller<camera_t, void(), Camera_MoveBack_Discrete>( camwnd.getCamera() ), Accelerator( GDK_KEY_Down ) );
 987         GlobalCommands_insert( "CameraLeft", ReferenceCaller<camera_t, void(), Camera_RotateLeft_Discrete>( camwnd.getCamera() ), Accelerator( GDK_KEY_Left ) );
 988         GlobalCommands_insert( "CameraRight", ReferenceCaller<camera_t, void(), Camera_RotateRight_Discrete>( camwnd.getCamera() ), Accelerator( GDK_KEY_Right ) );
 989         GlobalCommands_insert( "CameraStrafeRight", ReferenceCaller<camera_t, void(), Camera_MoveRight_Discrete>( camwnd.getCamera() ), Accelerator( GDK_KEY_period ) );
 990         GlobalCommands_insert( "CameraStrafeLeft", ReferenceCaller<camera_t, void(), Camera_MoveLeft_Discrete>( camwnd.getCamera() ), Accelerator( GDK_KEY_comma ) );
 991
 992         GlobalCommands_insert( "CameraUp", ReferenceCaller<camera_t, void(), Camera_MoveUp_Discrete>( camwnd.getCamera() ), Accelerator( 'D' ) );
 993         GlobalCommands_insert( "CameraDown", ReferenceCaller<camera_t, void(), Camera_MoveDown_Discrete>( camwnd.getCamera() ), Accelerator( 'C' ) );
 994         GlobalCommands_insert( "CameraAngleUp", ReferenceCaller<camera_t, void(), Camera_PitchUp_Discrete>( camwnd.getCamera() ), Accelerator( 'A' ) );
 995         GlobalCommands_insert( "CameraAngleDown", ReferenceCaller<camera_t, void(), Camera_PitchDown_Discrete>( camwnd.getCamera() ), Accelerator( 'Z' ) );
 996 }
 997
 998 void CamWnd_Move_Enable( CamWnd& camwnd ){
 999         KeyEvent_connect( "CameraForward" );
1000         KeyEvent_connect( "CameraBack" );
1001         KeyEvent_connect( "CameraLeft" );
1002         KeyEvent_connect( "CameraRight" );
1003         KeyEvent_connect( "CameraStrafeRight" );
1004         KeyEvent_connect( "CameraStrafeLeft" );
1005         KeyEvent_connect( "CameraUp" );
1006         KeyEvent_connect( "CameraDown" );
1007         KeyEvent_connect( "CameraAngleUp" );
1008         KeyEvent_connect( "CameraAngleDown" );
1009 }
1010
1011 void CamWnd_Move_Disable( CamWnd& camwnd ){
1012         KeyEvent_disconnect( "CameraForward" );
1013         KeyEvent_disconnect( "CameraBack" );
1014         KeyEvent_disconnect( "CameraLeft" );
1015         KeyEvent_disconnect( "CameraRight" );
1016         KeyEvent_disconnect( "CameraStrafeRight" );
1017         KeyEvent_disconnect( "CameraStrafeLeft" );
1018         KeyEvent_disconnect( "CameraUp" );
1019         KeyEvent_disconnect( "CameraDown" );
1020         KeyEvent_disconnect( "CameraAngleUp" );
1021         KeyEvent_disconnect( "CameraAngleDown" );
1022 }
1023
1024 void CamWnd_Move_Discrete_Enable( CamWnd& camwnd ){
1025         command_connect_accelerator( "CameraForward" );
1026         command_connect_accelerator( "CameraBack" );
1027         command_connect_accelerator( "CameraLeft" );
1028         command_connect_accelerator( "CameraRight" );
1029         command_connect_accelerator( "CameraStrafeRight" );
1030         command_connect_accelerator( "CameraStrafeLeft" );
1031         command_connect_accelerator( "CameraUp" );
1032         command_connect_accelerator( "CameraDown" );
1033         command_connect_accelerator( "CameraAngleUp" );
1034         command_connect_accelerator( "CameraAngleDown" );
1035 }
1036
1037 void CamWnd_Move_Discrete_Disable( CamWnd& camwnd ){
1038         command_disconnect_accelerator( "CameraForward" );
1039         command_disconnect_accelerator( "CameraBack" );
1040         command_disconnect_accelerator( "CameraLeft" );
1041         command_disconnect_accelerator( "CameraRight" );
1042         command_disconnect_accelerator( "CameraStrafeRight" );
1043         command_disconnect_accelerator( "CameraStrafeLeft" );
1044         command_disconnect_accelerator( "CameraUp" );
1045         command_disconnect_accelerator( "CameraDown" );
1046         command_disconnect_accelerator( "CameraAngleUp" );
1047         command_disconnect_accelerator( "CameraAngleDown" );
1048 }
1049
1050 struct CamWnd_Move_Discrete {
1051         static void Export(const Callback<void(bool)> &returnz) {
1052                 returnz(g_camwindow_globals_private.m_bCamDiscrete);
1053         }
1054
1055         static void Import(bool value) {
1056                 if (g_camwnd) {
1057                         Import_(*g_camwnd, value);
1058                 } else {
1059                         g_camwindow_globals_private.m_bCamDiscrete = value;
1060                 }
1061         }
1062
1063         static void Import_(CamWnd &camwnd, bool value) {
1064                 if (g_camwindow_globals_private.m_bCamDiscrete) {
1065                         CamWnd_Move_Discrete_Disable(camwnd);
1066                 } else {
1067                         CamWnd_Move_Disable(camwnd);
1068                 }
1069
1070                 g_camwindow_globals_private.m_bCamDiscrete = value;
1071
1072                 if (g_camwindow_globals_private.m_bCamDiscrete) {
1073                         CamWnd_Move_Discrete_Enable(camwnd);
1074                 } else {
1075                         CamWnd_Move_Enable(camwnd);
1076                 }
1077         }
1078 };
1079
1080
1081 void CamWnd_Add_Handlers_Move( CamWnd& camwnd ){
1082         camwnd.m_selection_button_press_handler = camwnd.m_gl_widget.connect( "button_press_event", G_CALLBACK( selection_button_press ), camwnd.m_window_observer );
1083         camwnd.m_selection_button_release_handler = camwnd.m_gl_widget.connect( "button_release_event", G_CALLBACK( selection_button_release ), camwnd.m_window_observer );
1084         camwnd.m_selection_motion_handler = camwnd.m_gl_widget.connect( "motion_notify_event", G_CALLBACK( DeferredMotion::gtk_motion ), &camwnd.m_deferred_motion );
1085
1086         camwnd.m_freelook_button_press_handler = camwnd.m_gl_widget.connect( "button_press_event", G_CALLBACK( enable_freelook_button_press ), &camwnd );
1087
1088         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1089                 CamWnd_Move_Discrete_Enable( camwnd );
1090         }
1091         else
1092         {
1093                 CamWnd_Move_Enable( camwnd );
1094         }
1095 }
1096
1097 void CamWnd_Remove_Handlers_Move( CamWnd& camwnd ){
1098         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_press_handler );
1099         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_release_handler );
1100         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_motion_handler );
1101
1102         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_freelook_button_press_handler );
1103
1104         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1105                 CamWnd_Move_Discrete_Disable( camwnd );
1106         }
1107         else
1108         {
1109                 CamWnd_Move_Disable( camwnd );
1110         }
1111 }
1112
1113 void CamWnd_Add_Handlers_FreeMove( CamWnd& camwnd ){
1114         camwnd.m_selection_button_press_handler = camwnd.m_gl_widget.connect( "button_press_event", G_CALLBACK( selection_button_press_freemove ), camwnd.m_window_observer );
1115         camwnd.m_selection_button_release_handler = camwnd.m_gl_widget.connect( "button_release_event", G_CALLBACK( selection_button_release_freemove ), camwnd.m_window_observer );
1116         camwnd.m_selection_motion_handler = camwnd.m_gl_widget.connect( "motion_notify_event", G_CALLBACK( selection_motion_freemove ), camwnd.m_window_observer );
1117
1118         camwnd.m_freelook_button_press_handler = camwnd.m_gl_widget.connect( "button_press_event", G_CALLBACK( disable_freelook_button_press ), &camwnd );
1119
1120         KeyEvent_connect( "CameraFreeMoveForward" );
1121         KeyEvent_connect( "CameraFreeMoveBack" );
1122         KeyEvent_connect( "CameraFreeMoveLeft" );
1123         KeyEvent_connect( "CameraFreeMoveRight" );
1124         KeyEvent_connect( "CameraFreeMoveUp" );
1125         KeyEvent_connect( "CameraFreeMoveDown" );
1126 }
1127
1128 void CamWnd_Remove_Handlers_FreeMove( CamWnd& camwnd ){
1129         KeyEvent_disconnect( "CameraFreeMoveForward" );
1130         KeyEvent_disconnect( "CameraFreeMoveBack" );
1131         KeyEvent_disconnect( "CameraFreeMoveLeft" );
1132         KeyEvent_disconnect( "CameraFreeMoveRight" );
1133         KeyEvent_disconnect( "CameraFreeMoveUp" );
1134         KeyEvent_disconnect( "CameraFreeMoveDown" );
1135
1136         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_press_handler );
1137         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_release_handler );
1138         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_motion_handler );
1139
1140         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_freelook_button_press_handler );
1141 }
1142
1143 CamWnd::CamWnd() :
1144         m_view( true ),
1145         m_Camera( &m_view, CamWndQueueDraw( *this ) ),
1146         m_cameraview( m_Camera, &m_view, ReferenceCaller<CamWnd, void(), CamWnd_Update>( *this ) ),
1147         m_gl_widget( glwidget_new( TRUE ) ),
1148         m_window_observer( NewWindowObserver() ),
1149         m_XORRectangle( m_gl_widget ),
1150         m_deferredDraw( WidgetQueueDrawCaller( m_gl_widget ) ),
1151         m_deferred_motion( selection_motion, m_window_observer ),
1152         m_selection_button_press_handler( 0 ),
1153         m_selection_button_release_handler( 0 ),
1154         m_selection_motion_handler( 0 ),
1155         m_freelook_button_press_handler( 0 ),
1156         m_drawing( false ){
1157         m_bFreeMove = false;
1158
1159         GlobalWindowObservers_add( m_window_observer );
1160         GlobalWindowObservers_connectWidget( m_gl_widget );
1161
1162         m_window_observer->setRectangleDrawCallback( ReferenceCaller<CamWnd, void(rect_t), camwnd_update_xor_rectangle>( *this ) );
1163         m_window_observer->setView( m_view );
1164
1165         g_object_ref( m_gl_widget._handle );
1166
1167         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 );
1168         gtk_widget_set_can_focus( m_gl_widget, true );
1169
1170         m_sizeHandler = m_gl_widget.connect( "size_allocate", G_CALLBACK( camera_size_allocate ), this );
1171         m_exposeHandler = m_gl_widget.on_render( G_CALLBACK( camera_expose ), this );
1172
1173         Map_addValidCallback( g_map, DeferredDrawOnMapValidChangedCaller( m_deferredDraw ) );
1174
1175         CamWnd_registerCommands( *this );
1176
1177         CamWnd_Add_Handlers_Move( *this );
1178
1179         m_gl_widget.connect( "scroll_event", G_CALLBACK( wheelmove_scroll ), this );
1180
1181         AddSceneChangeCallback( ReferenceCaller<CamWnd, void(), CamWnd_Update>( *this ) );
1182
1183         PressedButtons_connect( g_pressedButtons, m_gl_widget );
1184 }
1185
1186 CamWnd::~CamWnd(){
1187         if ( m_bFreeMove ) {
1188                 DisableFreeMove();
1189         }
1190
1191         CamWnd_Remove_Handlers_Move( *this );
1192
1193         g_signal_handler_disconnect( G_OBJECT( m_gl_widget ), m_sizeHandler );
1194         g_signal_handler_disconnect( G_OBJECT( m_gl_widget ), m_exposeHandler );
1195
1196         m_gl_widget.unref();
1197
1198         m_window_observer->release();
1199 }
1200
1201 class FloorHeightWalker : public scene::Graph::Walker
1202 {
1203 float m_current;
1204 float& m_bestUp;
1205 float& m_bestDown;
1206 public:
1207 FloorHeightWalker( float current, float& bestUp, float& bestDown ) :
1208         m_current( current ), m_bestUp( bestUp ), m_bestDown( bestDown ){
1209         bestUp = g_MaxWorldCoord;
1210         bestDown = -g_MaxWorldCoord;
1211 }
1212 bool pre( const scene::Path& path, scene::Instance& instance ) const {
1213         if ( path.top().get().visible()
1214                  && Node_isBrush( path.top() ) ) { // this node is a floor
1215                 const AABB& aabb = instance.worldAABB();
1216                 float floorHeight = aabb.origin.z() + aabb.extents.z();
1217                 if ( floorHeight > m_current && floorHeight < m_bestUp ) {
1218                         m_bestUp = floorHeight;
1219                 }
1220                 if ( floorHeight < m_current && floorHeight > m_bestDown ) {
1221                         m_bestDown = floorHeight;
1222                 }
1223         }
1224         return true;
1225 }
1226 };
1227
1228 void CamWnd::Cam_ChangeFloor( bool up ){
1229         float current = m_Camera.origin[2] - 48;
1230         float bestUp;
1231         float bestDown;
1232         GlobalSceneGraph().traverse( FloorHeightWalker( current, bestUp, bestDown ) );
1233
1234         if ( up && bestUp != g_MaxWorldCoord ) {
1235                 current = bestUp;
1236         }
1237         if ( !up && bestDown != -g_MaxWorldCoord ) {
1238                 current = bestDown;
1239         }
1240
1241         m_Camera.origin[2] = current + 48;
1242         Camera_updateModelview( getCamera() );
1243         CamWnd_Update( *this );
1244         CameraMovedNotify();
1245 }
1246
1247
1248 #if 0
1249
1250 // button_press
1251 Sys_GetCursorPos( &m_PositionDragCursorX, &m_PositionDragCursorY );
1252
1253 // motion
1254 if ( ( m_bFreeMove && ( buttons == ( RAD_CONTROL | RAD_SHIFT ) ) )
1255          || ( !m_bFreeMove && ( buttons == ( RAD_RBUTTON | RAD_CONTROL ) ) ) ) {
1256         Cam_PositionDrag();
1257         CamWnd_Update( camwnd );
1258         CameraMovedNotify();
1259         return;
1260 }
1261
1262 void CamWnd::Cam_PositionDrag(){
1263         int x, y;
1264
1265         Sys_GetCursorPos( m_gl_widget, &x, &y );
1266         if ( x != m_PositionDragCursorX || y != m_PositionDragCursorY ) {
1267                 x -= m_PositionDragCursorX;
1268                 vector3_add( m_Camera.origin, vector3_scaled( m_Camera.vright, x ) );
1269                 y -= m_PositionDragCursorY;
1270                 m_Camera.origin[2] -= y;
1271                 Camera_updateModelview();
1272                 CamWnd_Update( camwnd );
1273                 CameraMovedNotify();
1274
1275                 Sys_SetCursorPos( m_gl_widget, m_PositionDragCursorX, m_PositionDragCursorY );
1276         }
1277 }
1278 #endif
1279
1280
1281 // NOTE TTimo if there's an OS-level focus out of the application
1282 //   then we can release the camera cursor grab
1283 static gboolean camwindow_freemove_focusout( ui::Widget widget, GdkEventFocus* event, gpointer data ){
1284         reinterpret_cast<CamWnd*>( data )->DisableFreeMove();
1285         return FALSE;
1286 }
1287
1288 void CamWnd::EnableFreeMove(){
1289         //globalOutputStream() << "EnableFreeMove\n";
1290
1291         ASSERT_MESSAGE( !m_bFreeMove, "EnableFreeMove: free-move was already enabled" );
1292         m_bFreeMove = true;
1293         Camera_clearMovementFlags( getCamera(), MOVE_ALL );
1294
1295         CamWnd_Remove_Handlers_Move( *this );
1296         CamWnd_Add_Handlers_FreeMove( *this );
1297
1298         gtk_window_set_focus( m_parent, m_gl_widget );
1299         m_freemove_handle_focusout = m_gl_widget.connect( "focus_out_event", G_CALLBACK( camwindow_freemove_focusout ), this );
1300         m_freezePointer.freeze_pointer( m_gl_widget, Camera_motionDelta, &m_Camera );
1301
1302         CamWnd_Update( *this );
1303 }
1304
1305 void CamWnd::DisableFreeMove(){
1306         //globalOutputStream() << "DisableFreeMove\n";
1307
1308         ASSERT_MESSAGE( m_bFreeMove, "DisableFreeMove: free-move was not enabled" );
1309         m_bFreeMove = false;
1310         Camera_clearMovementFlags( getCamera(), MOVE_ALL );
1311
1312         CamWnd_Remove_Handlers_FreeMove( *this );
1313         CamWnd_Add_Handlers_Move( *this );
1314
1315         m_freezePointer.unfreeze_pointer( m_gl_widget );
1316         g_signal_handler_disconnect( G_OBJECT( m_gl_widget ), m_freemove_handle_focusout );
1317
1318         CamWnd_Update( *this );
1319 }
1320
1321
1322 #include "renderer.h"
1323
1324 class CamRenderer : public Renderer
1325 {
1326 struct state_type
1327 {
1328         state_type() : m_highlight( 0 ), m_state( 0 ), m_lights( 0 ){
1329         }
1330         unsigned int m_highlight;
1331         Shader* m_state;
1332         const LightList* m_lights;
1333 };
1334
1335 std::vector<state_type> m_state_stack;
1336 RenderStateFlags m_globalstate;
1337 Shader* m_state_select0;
1338 Shader* m_state_select1;
1339 const Vector3& m_viewer;
1340
1341 public:
1342 CamRenderer( RenderStateFlags globalstate, Shader* select0, Shader* select1, const Vector3& viewer ) :
1343         m_globalstate( globalstate ),
1344         m_state_select0( select0 ),
1345         m_state_select1( select1 ),
1346         m_viewer( viewer ){
1347         ASSERT_NOTNULL( select0 );
1348         ASSERT_NOTNULL( select1 );
1349         m_state_stack.push_back( state_type() );
1350 }
1351
1352 void SetState( Shader* state, EStyle style ){
1353         ASSERT_NOTNULL( state );
1354         if ( style == eFullMaterials ) {
1355                 m_state_stack.back().m_state = state;
1356         }
1357 }
1358 EStyle getStyle() const {
1359         return eFullMaterials;
1360 }
1361 void PushState(){
1362         m_state_stack.push_back( m_state_stack.back() );
1363 }
1364 void PopState(){
1365         ASSERT_MESSAGE( !m_state_stack.empty(), "popping empty stack" );
1366         m_state_stack.pop_back();
1367 }
1368 void Highlight( EHighlightMode mode, bool bEnable = true ){
1369         if ( bEnable ) {
1370                 m_state_stack.back().m_highlight |= mode;
1371         } else {
1372                 m_state_stack.back().m_highlight &= ~mode;
1373         }
1374 }
1375 void setLights( const LightList& lights ){
1376         m_state_stack.back().m_lights = &lights;
1377 }
1378 void addRenderable( const OpenGLRenderable& renderable, const Matrix4& world ){
1379         if ( m_state_stack.back().m_highlight & ePrimitive ) {
1380                 m_state_select0->addRenderable( renderable, world, m_state_stack.back().m_lights );
1381         }
1382         if ( m_state_stack.back().m_highlight & eFace ) {
1383                 m_state_select1->addRenderable( renderable, world, m_state_stack.back().m_lights );
1384         }
1385
1386         m_state_stack.back().m_state->addRenderable( renderable, world, m_state_stack.back().m_lights );
1387 }
1388
1389 void render( const Matrix4& modelview, const Matrix4& projection ){
1390         if( GlobalShaderSystem().refreshed() )
1391         {
1392                 GlobalShaderCache().render( VP_CAMWINDOW, m_globalstate, modelview, projection, m_viewer );
1393         }
1394 }
1395 };
1396
1397 /*
1398    ==============
1399    Cam_Draw
1400    ==============
1401  */
1402
1403 void ShowStatsToggle(){
1404         g_camwindow_globals_private.m_showStats ^= 1;
1405 }
1406
1407 void ShowStatsExport( const Callback<void(bool)> &importer ){
1408         importer( g_camwindow_globals_private.m_showStats );
1409 }
1410
1411 FreeCaller<void(const Callback<void(bool)>&), ShowStatsExport> g_show_stats_caller;
1412 Callback<void(const Callback<void(bool)> &)> g_show_stats_callback( g_show_stats_caller );
1413 ToggleItem g_show_stats( g_show_stats_callback );
1414
1415 void CamWnd::Cam_Clear(){
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
1425 // g_deferredStartupMap is set in main.cpp
1426 extern const char* g_deferredStartupMap;
1427
1428 // g_loadedMap and g_deferredStartupShaders are set in map.cpp
1429 extern bool g_deferredStartupShaders;
1430
1431 void CamWnd::Cam_Init_World(){
1432         // Only run and run once when Textures_TriggerRealise() is called before.
1433         if ( Textures_TriggeredRealise() )
1434         {
1435                 Textures_Realise();
1436         }
1437
1438         // Only run and run once when GlobalShaderSystem().TriggerRefresh() is called before.
1439
1440         if ( GlobalShaderSystem().triggeredRefresh() )
1441         {
1442                 GlobalShaderSystem().refresh();
1443         }
1444
1445         if ( g_deferredStartupShaders )
1446         {
1447                 TextureBrowser_ShowStartupShaders( GlobalTextureBrowser() );
1448                 g_deferredStartupShaders = false;
1449         }
1450
1451         // Load the “to be loaded at startup” map when GL viewport
1452         // is cleared and builtin shaders are realised.
1453         if ( g_deferredStartupMap != nullptr )
1454         {
1455                 Map_Free();
1456                 Map_LoadFile( g_deferredStartupMap );
1457                 g_deferredStartupMap = nullptr;
1458         }
1459 }
1460
1461 void CamWnd::Cam_Draw(){
1462         glViewport( 0, 0, m_Camera.width, m_Camera.height );
1463 #if 0
1464         GLint viewprt[4];
1465         glGetIntegerv( GL_VIEWPORT, viewprt );
1466 #endif
1467
1468         // enable depth buffer writes
1469         glDepthMask( GL_TRUE );
1470         glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
1471
1472         Cam_Clear();
1473
1474         extern void Renderer_ResetStats();
1475         Renderer_ResetStats();
1476         extern void Cull_ResetStats();
1477         Cull_ResetStats();
1478
1479         glMatrixMode( GL_PROJECTION );
1480         glLoadMatrixf( reinterpret_cast<const float*>( &m_Camera.projection ) );
1481
1482         glMatrixMode( GL_MODELVIEW );
1483         glLoadMatrixf( reinterpret_cast<const float*>( &m_Camera.modelview ) );
1484
1485
1486         // one directional light source directly behind the viewer
1487         {
1488                 GLfloat inverse_cam_dir[4], ambient[4], diffuse[4]; //, material[4];
1489
1490                 ambient[0] = ambient[1] = ambient[2] = 0.4f;
1491                 ambient[3] = 1.0f;
1492                 diffuse[0] = diffuse[1] = diffuse[2] = 0.4f;
1493                 diffuse[3] = 1.0f;
1494                 //material[0] = material[1] = material[2] = 0.8f;
1495                 //material[3] = 1.0f;
1496
1497                 inverse_cam_dir[0] = m_Camera.vpn[0];
1498                 inverse_cam_dir[1] = m_Camera.vpn[1];
1499                 inverse_cam_dir[2] = m_Camera.vpn[2];
1500                 inverse_cam_dir[3] = 0;
1501
1502                 glLightfv( GL_LIGHT0, GL_POSITION, inverse_cam_dir );
1503
1504                 glLightfv( GL_LIGHT0, GL_AMBIENT, ambient );
1505                 glLightfv( GL_LIGHT0, GL_DIFFUSE, diffuse );
1506
1507                 glEnable( GL_LIGHT0 );
1508         }
1509
1510
1511         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;
1512         switch ( m_Camera.draw_mode )
1513         {
1514         case cd_wire:
1515                 break;
1516         case cd_solid:
1517                 globalstate |= RENDER_FILL
1518                                            | RENDER_LIGHTING
1519                                            | RENDER_SMOOTH
1520                                            | RENDER_SCALED;
1521                 break;
1522         case cd_texture:
1523                 globalstate |= RENDER_FILL
1524                                            | RENDER_LIGHTING
1525                                            | RENDER_TEXTURE
1526                                            | RENDER_SMOOTH
1527                                            | RENDER_SCALED;
1528                 break;
1529         case cd_lighting:
1530                 globalstate |= RENDER_FILL
1531                                            | RENDER_LIGHTING
1532                                            | RENDER_TEXTURE
1533                                            | RENDER_SMOOTH
1534                                            | RENDER_SCALED
1535                                            | RENDER_BUMP
1536                                            | RENDER_PROGRAM
1537                                            | RENDER_SCREEN;
1538                 break;
1539         default:
1540                 globalstate = 0;
1541                 break;
1542         }
1543
1544         if ( !g_xywindow_globals.m_bNoStipple ) {
1545                 globalstate |= RENDER_LINESTIPPLE | RENDER_POLYGONSTIPPLE;
1546         }
1547
1548         {
1549                 CamRenderer renderer( globalstate, m_state_select2, m_state_select1, m_view.getViewer() );
1550
1551                 Scene_Render( renderer, m_view );
1552
1553                 renderer.render( m_Camera.modelview, m_Camera.projection );
1554         }
1555
1556         // prepare for 2d stuff
1557         glColor4f( 1, 1, 1, 1 );
1558         glDisable( GL_BLEND );
1559         glMatrixMode( GL_PROJECTION );
1560         glLoadIdentity();
1561         glOrtho( 0, (float)m_Camera.width, 0, (float)m_Camera.height, -100, 100 );
1562         glScalef( 1, -1, 1 );
1563         glTranslatef( 0, -(float)m_Camera.height, 0 );
1564         glMatrixMode( GL_MODELVIEW );
1565         glLoadIdentity();
1566
1567         if ( GlobalOpenGL().GL_1_3() ) {
1568                 glClientActiveTexture( GL_TEXTURE0 );
1569                 glActiveTexture( GL_TEXTURE0 );
1570         }
1571
1572         glDisableClientState( GL_TEXTURE_COORD_ARRAY );
1573         glDisableClientState( GL_NORMAL_ARRAY );
1574         glDisableClientState( GL_COLOR_ARRAY );
1575
1576         glDisable( GL_TEXTURE_2D );
1577         glDisable( GL_LIGHTING );
1578         glDisable( GL_COLOR_MATERIAL );
1579         glDisable( GL_DEPTH_TEST );
1580         glColor3f( 1.f, 1.f, 1.f );
1581         glLineWidth( 1 );
1582
1583         // draw the crosshair
1584         if ( m_bFreeMove ) {
1585                 glBegin( GL_LINES );
1586                 glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f + 6 );
1587                 glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f + 2 );
1588                 glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f - 6 );
1589                 glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f - 2 );
1590                 glVertex2f( (float)m_Camera.width / 2.f + 6, (float)m_Camera.height / 2.f );
1591                 glVertex2f( (float)m_Camera.width / 2.f + 2, (float)m_Camera.height / 2.f );
1592                 glVertex2f( (float)m_Camera.width / 2.f - 6, (float)m_Camera.height / 2.f );
1593                 glVertex2f( (float)m_Camera.width / 2.f - 2, (float)m_Camera.height / 2.f );
1594                 glEnd();
1595         }
1596
1597         if ( g_camwindow_globals_private.m_showStats ) {
1598                 glRasterPos3f( 1.0f, static_cast<float>( m_Camera.height ) - GlobalOpenGL().m_font->getPixelDescent(), 0.0f );
1599                 extern const char* Renderer_GetStats();
1600                 GlobalOpenGL().drawString( Renderer_GetStats() );
1601
1602                 glRasterPos3f( 1.0f, static_cast<float>( m_Camera.height ) - GlobalOpenGL().m_font->getPixelDescent() - GlobalOpenGL().m_font->getPixelHeight(), 0.0f );
1603                 extern const char* Cull_GetStats();
1604                 GlobalOpenGL().drawString( Cull_GetStats() );
1605         }
1606
1607         // bind back to the default texture so that we don't have problems
1608         // elsewhere using/modifying texture maps between contexts
1609         glBindTexture( GL_TEXTURE_2D, 0 );
1610 }
1611
1612 void CamWnd::draw(){
1613         m_drawing = true;
1614
1615         if ( Textures_TriggeredRealise() || GlobalShaderSystem().triggeredRefresh() || g_deferredStartupShaders )
1616         {
1617                 // Draw something to not display garbage while iterating textures.
1618                 if ( glwidget_make_current( m_gl_widget ) != FALSE ) {
1619                         if ( ScreenUpdates_Enabled() ) {
1620                                 GlobalOpenGL_debugAssertNoErrors();
1621                                 glViewport( 0, 0, m_Camera.width, m_Camera.height );
1622                                 Cam_Clear();
1623                                 GlobalOpenGL_debugAssertNoErrors();
1624                         }
1625
1626                         Cam_Init_World();
1627
1628                         glwidget_swap_buffers( m_gl_widget );
1629                 }
1630         }
1631
1632         //globalOutputStream() << "draw...\n";
1633         if ( glwidget_make_current( m_gl_widget ) != FALSE ) {
1634                 if ( Map_Valid( g_map ) && ScreenUpdates_Enabled() ) {
1635                         GlobalOpenGL_debugAssertNoErrors();
1636                         Cam_Draw();
1637                         GlobalOpenGL_debugAssertNoErrors();
1638                         //qglFinish();
1639
1640                         m_XORRectangle.set( rectangle_t() );
1641                 }
1642
1643                 glwidget_swap_buffers( m_gl_widget );
1644         }
1645
1646         m_drawing = false;
1647 }
1648
1649 void CamWnd::BenchMark(){
1650         double dStart = Sys_DoubleTime();
1651         for ( int i = 0 ; i < 100 ; i++ )
1652         {
1653                 Vector3 angles;
1654                 angles[CAMERA_ROLL] = 0;
1655                 angles[CAMERA_PITCH] = 0;
1656                 angles[CAMERA_YAW] = i * 360.0f / 100.0f;
1657                 Camera_setAngles( *this, angles );
1658         }
1659         double dEnd = Sys_DoubleTime();
1660         globalOutputStream() << FloatFormat( dEnd - dStart, 5, 2 ) << " seconds\n";
1661 }
1662
1663
1664 void fill_view_camera_menu( ui::Menu menu ){
1665         create_check_menu_item_with_mnemonic( menu, "Camera View", "ToggleCamera" );
1666 }
1667
1668 void GlobalCamera_ResetAngles(){
1669         CamWnd& camwnd = *g_camwnd;
1670         Vector3 angles;
1671         angles[CAMERA_ROLL] = angles[CAMERA_PITCH] = 0;
1672         angles[CAMERA_YAW] = 22.5f * floorf( ( Camera_getAngles( camwnd )[CAMERA_YAW] + 11 ) / 22.5f );
1673         Camera_setAngles( camwnd, angles );
1674 }
1675
1676 void Camera_ChangeFloorUp(){
1677         CamWnd& camwnd = *g_camwnd;
1678         camwnd.Cam_ChangeFloor( true );
1679 }
1680
1681 void Camera_ChangeFloorDown(){
1682         CamWnd& camwnd = *g_camwnd;
1683         camwnd.Cam_ChangeFloor( false );
1684 }
1685
1686 void Camera_CubeIn(){
1687         CamWnd& camwnd = *g_camwnd;
1688         g_camwindow_globals.m_nCubicScale--;
1689         if ( g_camwindow_globals.m_nCubicScale < 1 ) {
1690                 g_camwindow_globals.m_nCubicScale = 1;
1691         }
1692         Camera_updateProjection( camwnd.getCamera() );
1693         CamWnd_Update( camwnd );
1694         g_pParentWnd->SetGridStatus();
1695 }
1696
1697 void Camera_CubeOut(){
1698         CamWnd& camwnd = *g_camwnd;
1699         g_camwindow_globals.m_nCubicScale++;
1700         if ( g_camwindow_globals.m_nCubicScale > 46 ) {
1701                 g_camwindow_globals.m_nCubicScale = 46;
1702         }
1703         Camera_updateProjection( camwnd.getCamera() );
1704         CamWnd_Update( camwnd );
1705         g_pParentWnd->SetGridStatus();
1706 }
1707
1708 bool Camera_GetFarClip(){
1709         return g_camwindow_globals_private.m_bCubicClipping;
1710 }
1711
1712 ConstReferenceCaller<bool, void(const Callback<void(bool)> &), PropertyImpl<bool>::Export> g_getfarclip_caller( g_camwindow_globals_private.m_bCubicClipping );
1713 ToggleItem g_getfarclip_item( g_getfarclip_caller );
1714
1715 void Camera_SetFarClip( bool value ){
1716         CamWnd& camwnd = *g_camwnd;
1717         g_camwindow_globals_private.m_bCubicClipping = value;
1718         g_getfarclip_item.update();
1719         Camera_updateProjection( camwnd.getCamera() );
1720         CamWnd_Update( camwnd );
1721 }
1722
1723 struct Camera_FarClip {
1724         static void Export(const Callback<void(bool)> &returnz) {
1725                 returnz(g_camwindow_globals_private.m_bCubicClipping);
1726         }
1727
1728         static void Import(bool value) {
1729                 Camera_SetFarClip(value);
1730         }
1731 };
1732
1733 void Camera_ToggleFarClip(){
1734         Camera_SetFarClip( !Camera_GetFarClip() );
1735 }
1736
1737
1738 void CamWnd_constructToolbar( ui::Toolbar toolbar ){
1739         toolbar_append_toggle_button( toolbar, "Cubic clip the camera view (\\)", "view_cubicclipping.png", "ToggleCubicClip" );
1740 }
1741
1742 void CamWnd_registerShortcuts(){
1743         toggle_add_accelerator( "ToggleCubicClip" );
1744
1745 #if !defined( DISABLE_DOOM3_LIGHTING )
1746         if ( g_pGameDescription->mGameType == "doom3" ) {
1747                 command_connect_accelerator( "TogglePreview" );
1748         }
1749 #endif // !DISABLE_DOOM3_LIGHTING
1750
1751         command_connect_accelerator( "FOVInc" );
1752         command_connect_accelerator( "FOVDec" );
1753         command_connect_accelerator( "CameraSpeedInc" );
1754         command_connect_accelerator( "CameraSpeedDec" );
1755 }
1756
1757
1758 void GlobalCamera_Benchmark(){
1759         CamWnd& camwnd = *g_camwnd;
1760         camwnd.BenchMark();
1761 }
1762
1763 void GlobalCamera_Update(){
1764         CamWnd& camwnd = *g_camwnd;
1765         CamWnd_Update( camwnd );
1766 }
1767
1768 void GlobalCamera_SetVisible(){
1769         g_camera_shown.set( true );
1770 }
1771
1772 camera_draw_mode CamWnd_GetMode(){
1773         return camera_t::draw_mode;
1774 }
1775 void CamWnd_SetMode( camera_draw_mode mode ){
1776         ShaderCache_setBumpEnabled( mode == cd_lighting );
1777         camera_t::draw_mode = mode;
1778         if ( g_camwnd != 0 ) {
1779                 CamWnd_Update( *g_camwnd );
1780         }
1781 }
1782
1783 #if !defined( DISABLE_DOOM3_LIGHTING )
1784 void CamWnd_TogglePreview( void ){
1785         // gametype must be doom3 for this function to work
1786         // if the gametype is not doom3 something is wrong with the
1787         // global command list or somebody else calls this function.
1788         ASSERT_MESSAGE( g_pGameDescription->mGameType == "doom3", "CamWnd_TogglePreview called although mGameType is not doom3 compatible" );
1789
1790         // switch between textured and lighting mode
1791         CamWnd_SetMode( ( CamWnd_GetMode() == cd_lighting ) ? cd_texture : cd_lighting );
1792 }
1793 #endif // !DISABLE_DOOM3_LIGHTING
1794
1795
1796 CameraModel* g_camera_model = 0;
1797
1798 void CamWnd_LookThroughCamera( CamWnd& camwnd ){
1799         if ( g_camera_model != 0 ) {
1800                 CamWnd_Add_Handlers_Move( camwnd );
1801                 g_camera_model->setCameraView( 0, Callback<void()>() );
1802                 g_camera_model = 0;
1803                 Camera_updateModelview( camwnd.getCamera() );
1804                 Camera_updateProjection( camwnd.getCamera() );
1805                 CamWnd_Update( camwnd );
1806         }
1807 }
1808
1809 inline CameraModel* Instance_getCameraModel( scene::Instance& instance ){
1810         return InstanceTypeCast<CameraModel>::cast( instance );
1811 }
1812
1813 void CamWnd_LookThroughSelected( CamWnd& camwnd ){
1814         if ( g_camera_model != 0 ) {
1815                 CamWnd_LookThroughCamera( camwnd );
1816         }
1817
1818         if ( GlobalSelectionSystem().countSelected() != 0 ) {
1819                 scene::Instance& instance = GlobalSelectionSystem().ultimateSelected();
1820                 CameraModel* cameraModel = Instance_getCameraModel( instance );
1821                 if ( cameraModel != 0 ) {
1822                         CamWnd_Remove_Handlers_Move( camwnd );
1823                         g_camera_model = cameraModel;
1824                         g_camera_model->setCameraView( &camwnd.getCameraView(), ReferenceCaller<CamWnd, void(), CamWnd_LookThroughCamera>( camwnd ) );
1825                 }
1826         }
1827 }
1828
1829 void GlobalCamera_LookThroughSelected(){
1830         CamWnd_LookThroughSelected( *g_camwnd );
1831 }
1832
1833 void GlobalCamera_LookThroughCamera(){
1834         CamWnd_LookThroughCamera( *g_camwnd );
1835 }
1836
1837 struct RenderMode {
1838         static void Export(const Callback<void(int)> &returnz) {
1839                 switch (CamWnd_GetMode()) {
1840                         case cd_wire:
1841                                 returnz(0);
1842                                 break;
1843                         case cd_solid:
1844                                 returnz(1);
1845                                 break;
1846                         case cd_texture:
1847                                 returnz(2);
1848                                 break;
1849                         case cd_lighting:
1850                                 returnz(3);
1851                                 break;
1852                 }
1853         }
1854
1855         static void Import(int value) {
1856                 switch (value) {
1857                         case 0:
1858                                 CamWnd_SetMode(cd_wire);
1859                                 break;
1860                         case 1:
1861                                 CamWnd_SetMode(cd_solid);
1862                                 break;
1863                         case 2:
1864                                 CamWnd_SetMode(cd_texture);
1865                                 break;
1866                         case 3:
1867                                 CamWnd_SetMode(cd_lighting);
1868                                 break;
1869                         default:
1870                                 CamWnd_SetMode(cd_texture);
1871                 }
1872         }
1873 };
1874
1875 void Camera_constructPreferences( PreferencesPage& page ){
1876         page.appendSlider( "FOV", g_camwindow_globals_private.m_nFOV, TRUE, 0, 0, 100, MIN_FOV, MAX_FOV, 1, 10 );
1877         page.appendSlider( "Movement Speed", g_camwindow_globals_private.m_nMoveSpeed, TRUE, 0, 0, 100, MIN_CAM_SPEED, MAX_CAM_SPEED, 1, 10 );
1878         page.appendCheckBox( "", "Link strafe speed to movement speed", g_camwindow_globals_private.m_bCamLinkSpeed );
1879         page.appendSlider( "Rotation Speed", g_camwindow_globals_private.m_nAngleSpeed, TRUE, 0, 0, 3, 1, 180, 1, 10 );
1880         page.appendCheckBox( "", "Invert mouse vertical axis", g_camwindow_globals_private.m_bCamInverseMouse );
1881         page.appendCheckBox(
1882                 "", "Discrete movement",
1883                 make_property<CamWnd_Move_Discrete>()
1884                 );
1885         page.appendCheckBox(
1886                 "", "Enable far-clip plane",
1887                 make_property<Camera_FarClip>()
1888                 );
1889
1890 #if !defined( DISABLE_DOOM3_LIGHTING )
1891         if ( g_pGameDescription->mGameType == "doom3" ) {
1892                 const char* render_mode[] = { "Wireframe", "Flatshade", "Textured", "Lighting" };
1893
1894                 page.appendCombo(
1895                         "Render Mode",
1896                         STRING_ARRAY_RANGE( render_mode ),
1897                         make_property<RenderMode>()
1898                         );
1899         }
1900         else
1901 #endif // !DISABLE_DOOM3_LIGHTING
1902         {
1903                 const char* render_mode[] = { "Wireframe", "Flatshade", "Textured" };
1904
1905                 page.appendCombo(
1906                         "Render Mode",
1907                         STRING_ARRAY_RANGE( render_mode ),
1908                         make_property<RenderMode>()
1909                         );
1910         }
1911
1912         const char* strafe_mode[] = { "Both", "Forward", "Up" };
1913
1914         page.appendCombo(
1915                 "Strafe Mode",
1916                 g_camwindow_globals_private.m_nStrafeMode,
1917                 STRING_ARRAY_RANGE( strafe_mode )
1918                 );
1919 }
1920 void Camera_constructPage( PreferenceGroup& group ){
1921         PreferencesPage page( group.createPage( "Camera", "Camera View Preferences" ) );
1922         Camera_constructPreferences( page );
1923 }
1924 void Camera_registerPreferencesPage(){
1925         PreferencesDialog_addSettingsPage( makeCallbackF(Camera_constructPage) );
1926 }
1927
1928 #include "preferencesystem.h"
1929 #include "stringio.h"
1930 #include "dialog.h"
1931
1932 void FOV_increase(){
1933         CamWnd& camwnd = *g_camwnd;
1934         if ( g_camwindow_globals_private.m_nFOV <= ( MAX_FOV - FOV_STEP - 10 ) ) {
1935                 g_camwindow_globals_private.m_nFOV += FOV_STEP;
1936         }
1937         else {
1938                 g_camwindow_globals_private.m_nFOV = MAX_FOV - 10;
1939         }
1940         Camera_updateProjection( camwnd.getCamera() );
1941         CamWnd_Update( camwnd );
1942 }
1943
1944 void FOV_decrease(){
1945         CamWnd& camwnd = *g_camwnd;
1946         if ( g_camwindow_globals_private.m_nFOV >= ( MIN_FOV + FOV_STEP ) ) {
1947                 g_camwindow_globals_private.m_nFOV -= FOV_STEP;
1948         }
1949         else {
1950                 g_camwindow_globals_private.m_nFOV = MIN_FOV;
1951         }
1952         Camera_updateProjection( camwnd.getCamera() );
1953         CamWnd_Update( camwnd );
1954 }
1955
1956
1957 void CameraSpeed_increase(){
1958         if ( g_camwindow_globals_private.m_nMoveSpeed <= ( MAX_CAM_SPEED - CAM_SPEED_STEP - 10 ) ) {
1959                 g_camwindow_globals_private.m_nMoveSpeed += CAM_SPEED_STEP;
1960         }
1961         else {
1962                 g_camwindow_globals_private.m_nMoveSpeed = MAX_CAM_SPEED - 10;
1963         }
1964 }
1965
1966 void CameraSpeed_decrease(){
1967         if ( g_camwindow_globals_private.m_nMoveSpeed >= ( MIN_CAM_SPEED + CAM_SPEED_STEP ) ) {
1968                 g_camwindow_globals_private.m_nMoveSpeed -= CAM_SPEED_STEP;
1969         }
1970         else {
1971                 g_camwindow_globals_private.m_nMoveSpeed = MIN_CAM_SPEED;
1972         }
1973 }
1974
1975 /// \brief Initialisation for things that have the same lifespan as this module.
1976 void CamWnd_Construct(){
1977         GlobalCommands_insert( "CenterView", makeCallbackF(GlobalCamera_ResetAngles), Accelerator( GDK_KEY_End ) );
1978
1979         GlobalToggles_insert( "ToggleCubicClip", makeCallbackF(Camera_ToggleFarClip), ToggleItem::AddCallbackCaller( g_getfarclip_item ), Accelerator( '\\', (GdkModifierType)GDK_CONTROL_MASK ) );
1980         GlobalCommands_insert( "CubicClipZoomIn", makeCallbackF(Camera_CubeIn), Accelerator( '[', (GdkModifierType)GDK_CONTROL_MASK ) );
1981         GlobalCommands_insert( "CubicClipZoomOut", makeCallbackF(Camera_CubeOut), Accelerator( ']', (GdkModifierType)GDK_CONTROL_MASK ) );
1982
1983         GlobalCommands_insert( "UpFloor", makeCallbackF(Camera_ChangeFloorUp), Accelerator( GDK_KEY_Prior ) );
1984         GlobalCommands_insert( "DownFloor", makeCallbackF(Camera_ChangeFloorDown), Accelerator( GDK_KEY_Next ) );
1985
1986         GlobalToggles_insert( "ToggleCamera", ToggleShown::ToggleCaller( g_camera_shown ), ToggleItem::AddCallbackCaller( g_camera_shown.m_item ), Accelerator( 'C', (GdkModifierType)( GDK_SHIFT_MASK | GDK_CONTROL_MASK ) ) );
1987         GlobalCommands_insert( "LookThroughSelected", makeCallbackF(GlobalCamera_LookThroughSelected) );
1988         GlobalCommands_insert( "LookThroughCamera", makeCallbackF(GlobalCamera_LookThroughCamera) );
1989
1990 #if !defined( DISABLE_DOOM3_LIGHTING )
1991         if ( g_pGameDescription->mGameType == "doom3" ) {
1992                 GlobalCommands_insert( "TogglePreview", makeCallbackF(CamWnd_TogglePreview), Accelerator( GDK_KEY_F3 ) );
1993         }
1994 #endif // !DISABLE_DOOM3_LIGHTING
1995
1996         GlobalCommands_insert( "FOVInc", makeCallbackF(FOV_increase), Accelerator( GDK_KEY_KP_Multiply, (GdkModifierType)GDK_SHIFT_MASK ) );
1997         GlobalCommands_insert( "FOVDec", makeCallbackF(FOV_decrease), Accelerator( GDK_KEY_KP_Divide, (GdkModifierType)GDK_SHIFT_MASK ) );
1998
1999         GlobalCommands_insert( "CameraSpeedInc", makeCallbackF(CameraSpeed_increase), Accelerator( GDK_KEY_KP_Add, (GdkModifierType)GDK_SHIFT_MASK ) );
2000         GlobalCommands_insert( "CameraSpeedDec", makeCallbackF(CameraSpeed_decrease), Accelerator( GDK_KEY_KP_Subtract, (GdkModifierType)GDK_SHIFT_MASK ) );
2001
2002         GlobalShortcuts_insert( "CameraForward", Accelerator( GDK_KEY_Up ) );
2003         GlobalShortcuts_insert( "CameraBack", Accelerator( GDK_KEY_Down ) );
2004         GlobalShortcuts_insert( "CameraLeft", Accelerator( GDK_KEY_Left ) );
2005         GlobalShortcuts_insert( "CameraRight", Accelerator( GDK_KEY_Right ) );
2006         GlobalShortcuts_insert( "CameraStrafeRight", Accelerator( GDK_KEY_period ) );
2007         GlobalShortcuts_insert( "CameraStrafeLeft", Accelerator( GDK_KEY_comma ) );
2008
2009         GlobalShortcuts_insert( "CameraUp", Accelerator( 'D' ) );
2010         GlobalShortcuts_insert( "CameraDown", Accelerator( 'C' ) );
2011         GlobalShortcuts_insert( "CameraAngleUp", Accelerator( 'A' ) );
2012         GlobalShortcuts_insert( "CameraAngleDown", Accelerator( 'Z' ) );
2013
2014         GlobalShortcuts_insert( "CameraFreeMoveForward", Accelerator( GDK_KEY_Up ) );
2015         GlobalShortcuts_insert( "CameraFreeMoveBack", Accelerator( GDK_KEY_Down ) );
2016         GlobalShortcuts_insert( "CameraFreeMoveLeft", Accelerator( GDK_KEY_Left ) );
2017         GlobalShortcuts_insert( "CameraFreeMoveRight", Accelerator( GDK_KEY_Right ) );
2018
2019         GlobalToggles_insert( "ShowStats", makeCallbackF(ShowStatsToggle), ToggleItem::AddCallbackCaller( g_show_stats ) );
2020
2021         GlobalPreferenceSystem().registerPreference( "ShowStats", make_property_string( g_camwindow_globals_private.m_showStats ) );
2022         GlobalPreferenceSystem().registerPreference( "FOV", make_property_string( g_camwindow_globals_private.m_nFOV ) );
2023         GlobalPreferenceSystem().registerPreference( "MoveSpeed", make_property_string( g_camwindow_globals_private.m_nMoveSpeed ) );
2024         GlobalPreferenceSystem().registerPreference( "CamLinkSpeed", make_property_string( g_camwindow_globals_private.m_bCamLinkSpeed ) );
2025         GlobalPreferenceSystem().registerPreference( "AngleSpeed", make_property_string( g_camwindow_globals_private.m_nAngleSpeed ) );
2026         GlobalPreferenceSystem().registerPreference( "CamInverseMouse", make_property_string( g_camwindow_globals_private.m_bCamInverseMouse ) );
2027         GlobalPreferenceSystem().registerPreference( "CamDiscrete", make_property_string<CamWnd_Move_Discrete>());
2028         GlobalPreferenceSystem().registerPreference( "CubicClipping", make_property_string( g_camwindow_globals_private.m_bCubicClipping ) );
2029         GlobalPreferenceSystem().registerPreference( "CubicScale", make_property_string( g_camwindow_globals.m_nCubicScale ) );
2030         GlobalPreferenceSystem().registerPreference( "SI_Colors4", make_property_string( g_camwindow_globals.color_cameraback ) );
2031         GlobalPreferenceSystem().registerPreference( "SI_Colors12", make_property_string( g_camwindow_globals.color_selbrushes3d ) );
2032         GlobalPreferenceSystem().registerPreference( "CameraRenderMode", make_property_string<RenderMode>() );
2033         GlobalPreferenceSystem().registerPreference( "StrafeMode", make_property_string( g_camwindow_globals_private.m_nStrafeMode ) );
2034
2035         CamWnd_constructStatic();
2036
2037         Camera_registerPreferencesPage();
2038 }
2039 void CamWnd_Destroy(){
2040         CamWnd_destroyStatic();
2041 }