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 "debugging/debugging.h"
  31
  32 #include "iscenegraph.h"
  33 #include "irender.h"
  34 #include "igl.h"
  35 #include "icamera.h"
  36 #include "cullable.h"
  37 #include "renderable.h"
  38 #include "preferencesystem.h"
  39
  40 #include "signal/signal.h"
  41 #include "container/array.h"
  42 #include "scenelib.h"
  43 #include "render.h"
  44 #include "cmdlib.h"
  45 #include "math/frustum.h"
  46
  47 #include "gtkutil/widget.h"
  48 #include "gtkutil/button.h"
  49 #include "gtkutil/toolbar.h"
  50 #include "gtkutil/glwidget.h"
  51 #include "gtkutil/xorrectangle.h"
  52 #include "gtkmisc.h"
  53 #include "selection.h"
  54 #include "mainframe.h"
  55 #include "preferences.h"
  56 #include "commands.h"
  57 #include "xywindow.h"
  58 #include "windowobservers.h"
  59 #include "renderstate.h"
  60
  61 #include "timer.h"
  62
  63 Signal0 g_cameraMoved_callbacks;
  64
  65 void AddCameraMovedCallback( const SignalHandler& handler ){
  66         g_cameraMoved_callbacks.connectLast( handler );
  67 }
  68
  69 void CameraMovedNotify(){
  70         g_cameraMoved_callbacks();
  71 }
  72
  73
  74 struct camwindow_globals_private_t
  75 {
  76         int m_nMoveSpeed;
  77         bool m_bCamLinkSpeed;
  78         int m_nAngleSpeed;
  79         bool m_bCamInverseMouse;
  80         bool m_bCamDiscrete;
  81         bool m_bCubicClipping;
  82         bool m_showStats;
  83         int m_nStrafeMode;
  84
  85         camwindow_globals_private_t() :
  86                 m_nMoveSpeed( 100 ),
  87                 m_bCamLinkSpeed( true ),
  88                 m_nAngleSpeed( 3 ),
  89                 m_bCamInverseMouse( false ),
  90                 m_bCamDiscrete( true ),
  91                 m_bCubicClipping( true ),
  92                 m_showStats( true ),
  93                 m_nStrafeMode( 0 ){
  94         }
  95
  96 };
  97
  98 camwindow_globals_private_t g_camwindow_globals_private;
  99
 100
 101 const Matrix4 g_opengl2radiant(
 102         0, 0,-1, 0,
 103         -1, 0, 0, 0,
 104         0, 1, 0, 0,
 105         0, 0, 0, 1
 106         );
 107
 108 const Matrix4 g_radiant2opengl(
 109         0,-1, 0, 0,
 110         0, 0, 1, 0,
 111         -1, 0, 0, 0,
 112         0, 0, 0, 1
 113         );
 114
 115 struct camera_t;
 116 void Camera_mouseMove( camera_t& camera, int x, int y );
 117
 118 enum camera_draw_mode
 119 {
 120         cd_wire,
 121         cd_solid,
 122         cd_texture,
 123         cd_lighting
 124 };
 125
 126 struct camera_t
 127 {
 128         int width, height;
 129
 130         bool timing;
 131
 132         Vector3 origin;
 133         Vector3 angles;
 134
 135         Vector3 color; // background
 136
 137         Vector3 forward, right; // move matrix (TTimo: used to have up but it was not updated)
 138         Vector3 vup, vpn, vright; // view matrix (taken from the modelview matrix)
 139
 140         Matrix4 projection;
 141         Matrix4 modelview;
 142
 143         bool m_strafe; // true when in strafemode toggled by the ctrl-key
 144         bool m_strafe_forward; // true when in strafemode by ctrl-key and shift is pressed for forward strafing
 145
 146         unsigned int movementflags; // movement flags
 147         Timer m_keycontrol_timer;
 148         guint m_keymove_handler;
 149
 150
 151         float fieldOfView;
 152
 153         DeferredMotionDelta m_mouseMove;
 154
 155         static void motionDelta( int x, int y, void* data ){
 156                 Camera_mouseMove( *reinterpret_cast<camera_t*>( data ), x, y );
 157         }
 158
 159         View* m_view;
 160         Callback m_update;
 161
 162         static camera_draw_mode draw_mode;
 163
 164         camera_t( View* view, const Callback& update )
 165                 : width( 0 ),
 166                 height( 0 ),
 167                 timing( false ),
 168                 origin( 0, 0, 0 ),
 169                 angles( 0, 0, 0 ),
 170                 color( 0, 0, 0 ),
 171                 movementflags( 0 ),
 172                 m_keymove_handler( 0 ),
 173                 fieldOfView( 90.0f ),
 174                 m_mouseMove( motionDelta, this ),
 175                 m_view( view ),
 176                 m_update( update ){
 177         }
 178 };
 179
 180 camera_draw_mode camera_t::draw_mode = cd_texture;
 181
 182 inline Matrix4 projection_for_camera( float near_z, float far_z, float fieldOfView, int width, int height ){
 183         const float half_width = static_cast<float>( near_z * tan( degrees_to_radians( fieldOfView * 0.5 ) ) );
 184         const float half_height = half_width * ( static_cast<float>( height ) / static_cast<float>( width ) );
 185
 186         return matrix4_frustum(
 187                            -half_width,
 188                            half_width,
 189                            -half_height,
 190                            half_height,
 191                            near_z,
 192                            far_z
 193                            );
 194 }
 195
 196 float Camera_getFarClipPlane( camera_t& camera ){
 197         return ( g_camwindow_globals_private.m_bCubicClipping ) ? pow( 2.0, ( g_camwindow_globals.m_nCubicScale + 7 ) / 2.0 ) : 32768.0f;
 198 }
 199
 200 void Camera_updateProjection( camera_t& camera ){
 201         float farClip = Camera_getFarClipPlane( camera );
 202         camera.projection = projection_for_camera( farClip / 4096.0f, farClip, camera.fieldOfView, camera.width, camera.height );
 203
 204         camera.m_view->Construct( camera.projection, camera.modelview, camera.width, camera.height );
 205 }
 206
 207 void Camera_updateVectors( camera_t& camera ){
 208         for ( int i = 0 ; i < 3 ; i++ )
 209         {
 210                 camera.vright[i] = camera.modelview[( i << 2 ) + 0];
 211                 camera.vup[i] = camera.modelview[( i << 2 ) + 1];
 212                 camera.vpn[i] = camera.modelview[( i << 2 ) + 2];
 213         }
 214 }
 215
 216 void Camera_updateModelview( camera_t& camera ){
 217         camera.modelview = g_matrix4_identity;
 218
 219         // roll, pitch, yaw
 220         Vector3 radiant_eulerXYZ( 0, -camera.angles[CAMERA_PITCH], camera.angles[CAMERA_YAW] );
 221
 222         matrix4_translate_by_vec3( camera.modelview, camera.origin );
 223         matrix4_rotate_by_euler_xyz_degrees( camera.modelview, radiant_eulerXYZ );
 224         matrix4_multiply_by_matrix4( camera.modelview, g_radiant2opengl );
 225         matrix4_affine_invert( camera.modelview );
 226
 227         Camera_updateVectors( camera );
 228
 229         camera.m_view->Construct( camera.projection, camera.modelview, camera.width, camera.height );
 230 }
 231
 232
 233 void Camera_Move_updateAxes( camera_t& camera ){
 234         double ya = degrees_to_radians( camera.angles[CAMERA_YAW] );
 235
 236         // the movement matrix is kept 2d
 237         camera.forward[0] = static_cast<float>( cos( ya ) );
 238         camera.forward[1] = static_cast<float>( sin( ya ) );
 239         camera.forward[2] = 0;
 240         camera.right[0] = camera.forward[1];
 241         camera.right[1] = -camera.forward[0];
 242 }
 243
 244 void Camera_Freemove_updateAxes( camera_t& camera ){
 245         camera.right = camera.vright;
 246         camera.forward = vector3_negated( camera.vpn );
 247 }
 248
 249 const Vector3& Camera_getOrigin( camera_t& camera ){
 250         return camera.origin;
 251 }
 252
 253 void Camera_setOrigin( camera_t& camera, const Vector3& origin ){
 254         camera.origin = origin;
 255         Camera_updateModelview( camera );
 256         camera.m_update();
 257         CameraMovedNotify();
 258 }
 259
 260 const Vector3& Camera_getAngles( camera_t& camera ){
 261         return camera.angles;
 262 }
 263
 264 void Camera_setAngles( camera_t& camera, const Vector3& angles ){
 265         camera.angles = angles;
 266         Camera_updateModelview( camera );
 267         camera.m_update();
 268         CameraMovedNotify();
 269 }
 270
 271
 272 void Camera_FreeMove( camera_t& camera, int dx, int dy ){
 273         // free strafe mode, toggled by the ctrl key with optional shift for forward movement
 274         if ( camera.m_strafe ) {
 275                 float strafespeed = 0.65f;
 276
 277                 if ( g_camwindow_globals_private.m_bCamLinkSpeed ) {
 278                         strafespeed = (float)g_camwindow_globals_private.m_nMoveSpeed / 100;
 279                 }
 280
 281                 camera.origin -= camera.vright * strafespeed * dx;
 282                 if ( camera.m_strafe_forward ) {
 283                         camera.origin += camera.vpn * strafespeed * dy;
 284                 }
 285                 else{
 286                         camera.origin += camera.vup * strafespeed * dy;
 287                 }
 288         }
 289         else // free rotation
 290         {
 291                 const float dtime = 0.1f;
 292
 293                 if ( g_camwindow_globals_private.m_bCamInverseMouse ) {
 294                         camera.angles[CAMERA_PITCH] -= dy * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 295                 }
 296                 else{
 297                         camera.angles[CAMERA_PITCH] += dy * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 298                 }
 299
 300                 camera.angles[CAMERA_YAW] += dx * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 301
 302                 if ( camera.angles[CAMERA_PITCH] > 90 ) {
 303                         camera.angles[CAMERA_PITCH] = 90;
 304                 }
 305                 else if ( camera.angles[CAMERA_PITCH] < -90 ) {
 306                         camera.angles[CAMERA_PITCH] = -90;
 307                 }
 308
 309                 if ( camera.angles[CAMERA_YAW] >= 360 ) {
 310                         camera.angles[CAMERA_YAW] -= 360;
 311                 }
 312                 else if ( camera.angles[CAMERA_YAW] <= 0 ) {
 313                         camera.angles[CAMERA_YAW] += 360;
 314                 }
 315         }
 316
 317         Camera_updateModelview( camera );
 318         Camera_Freemove_updateAxes( camera );
 319 }
 320
 321 void Cam_MouseControl( camera_t& camera, int x, int y ){
 322         float xf, yf;
 323
 324         xf = (float)( x - camera.width / 2 ) / ( camera.width / 2 );
 325         yf = (float)( y - camera.height / 2 ) / ( camera.height / 2 );
 326
 327         //int xl = camera.width / 3;
 328         //int xh = xl * 2;
 329         //int yl = camera.height / 3;
 330         //int yh = yl * 2;
 331
 332         xf *= 1.0f - fabsf( yf );
 333         if ( xf < 0 ) {
 334                 xf += 0.1f;
 335                 if ( xf > 0 ) {
 336                         xf = 0;
 337                 }
 338         }
 339         else
 340         {
 341                 xf -= 0.1f;
 342                 if ( xf < 0 ) {
 343                         xf = 0;
 344                 }
 345         }
 346
 347         vector3_add( camera.origin, vector3_scaled( camera.forward, yf * 0.1f * g_camwindow_globals_private.m_nMoveSpeed ) );
 348         camera.angles[CAMERA_YAW] += xf * -0.1f * g_camwindow_globals_private.m_nAngleSpeed;
 349
 350         Camera_updateModelview( camera );
 351 }
 352
 353 void Camera_mouseMove( camera_t& camera, int x, int y ){
 354         //globalOutputStream() << "mousemove... ";
 355         Camera_FreeMove( camera, -x, -y );
 356         camera.m_update();
 357         CameraMovedNotify();
 358 }
 359
 360 const unsigned int MOVE_NONE = 0;
 361 const unsigned int MOVE_FORWARD = 1 << 0;
 362 const unsigned int MOVE_BACK = 1 << 1;
 363 const unsigned int MOVE_ROTRIGHT = 1 << 2;
 364 const unsigned int MOVE_ROTLEFT = 1 << 3;
 365 const unsigned int MOVE_STRAFERIGHT = 1 << 4;
 366 const unsigned int MOVE_STRAFELEFT = 1 << 5;
 367 const unsigned int MOVE_UP = 1 << 6;
 368 const unsigned int MOVE_DOWN = 1 << 7;
 369 const unsigned int MOVE_PITCHUP = 1 << 8;
 370 const unsigned int MOVE_PITCHDOWN = 1 << 9;
 371 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;
 372
 373 void Cam_KeyControl( camera_t& camera, float dtime ){
 374         // Update angles
 375         if ( camera.movementflags & MOVE_ROTLEFT ) {
 376                 camera.angles[CAMERA_YAW] += 15 * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 377         }
 378         if ( camera.movementflags & MOVE_ROTRIGHT ) {
 379                 camera.angles[CAMERA_YAW] -= 15 * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 380         }
 381         if ( camera.movementflags & MOVE_PITCHUP ) {
 382                 camera.angles[CAMERA_PITCH] += 15 * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 383                 if ( camera.angles[CAMERA_PITCH] > 90 ) {
 384                         camera.angles[CAMERA_PITCH] = 90;
 385                 }
 386         }
 387         if ( camera.movementflags & MOVE_PITCHDOWN ) {
 388                 camera.angles[CAMERA_PITCH] -= 15 * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 389                 if ( camera.angles[CAMERA_PITCH] < -90 ) {
 390                         camera.angles[CAMERA_PITCH] = -90;
 391                 }
 392         }
 393
 394         Camera_updateModelview( camera );
 395         Camera_Freemove_updateAxes( camera );
 396
 397         // Update position
 398         if ( camera.movementflags & MOVE_FORWARD ) {
 399                 vector3_add( camera.origin, vector3_scaled( camera.forward, dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
 400         }
 401         if ( camera.movementflags & MOVE_BACK ) {
 402                 vector3_add( camera.origin, vector3_scaled( camera.forward, -dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
 403         }
 404         if ( camera.movementflags & MOVE_STRAFELEFT ) {
 405                 vector3_add( camera.origin, vector3_scaled( camera.right, -dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
 406         }
 407         if ( camera.movementflags & MOVE_STRAFERIGHT ) {
 408                 vector3_add( camera.origin, vector3_scaled( camera.right, dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
 409         }
 410         if ( camera.movementflags & MOVE_UP ) {
 411                 vector3_add( camera.origin, vector3_scaled( g_vector3_axis_z, dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
 412         }
 413         if ( camera.movementflags & MOVE_DOWN ) {
 414                 vector3_add( camera.origin, vector3_scaled( g_vector3_axis_z, -dtime * g_camwindow_globals_private.m_nMoveSpeed ) );
 415         }
 416
 417         Camera_updateModelview( camera );
 418 }
 419
 420 void Camera_keyMove( camera_t& camera ){
 421         camera.m_mouseMove.flush();
 422
 423         //globalOutputStream() << "keymove... ";
 424         float time_seconds = camera.m_keycontrol_timer.elapsed_msec() / static_cast<float>( msec_per_sec );
 425         camera.m_keycontrol_timer.start();
 426         if ( time_seconds > 0.05f ) {
 427                 time_seconds = 0.05f; // 20fps
 428         }
 429         Cam_KeyControl( camera, time_seconds * 5.0f );
 430
 431         camera.m_update();
 432         CameraMovedNotify();
 433 }
 434
 435 gboolean camera_keymove( gpointer data ){
 436         Camera_keyMove( *reinterpret_cast<camera_t*>( data ) );
 437         return TRUE;
 438 }
 439
 440 void Camera_setMovementFlags( camera_t& camera, unsigned int mask ){
 441         if ( ( ~camera.movementflags & mask ) != 0 && camera.movementflags == 0 ) {
 442                 camera.m_keymove_handler = g_idle_add( camera_keymove, &camera );
 443         }
 444         camera.movementflags |= mask;
 445 }
 446 void Camera_clearMovementFlags( camera_t& camera, unsigned int mask ){
 447         if ( ( camera.movementflags & ~mask ) == 0 && camera.movementflags != 0 ) {
 448                 g_source_remove( camera.m_keymove_handler );
 449                 camera.m_keymove_handler = 0;
 450         }
 451         camera.movementflags &= ~mask;
 452 }
 453
 454 void Camera_MoveForward_KeyDown( camera_t& camera ){
 455         Camera_setMovementFlags( camera, MOVE_FORWARD );
 456 }
 457 void Camera_MoveForward_KeyUp( camera_t& camera ){
 458         Camera_clearMovementFlags( camera, MOVE_FORWARD );
 459 }
 460 void Camera_MoveBack_KeyDown( camera_t& camera ){
 461         Camera_setMovementFlags( camera, MOVE_BACK );
 462 }
 463 void Camera_MoveBack_KeyUp( camera_t& camera ){
 464         Camera_clearMovementFlags( camera, MOVE_BACK );
 465 }
 466
 467 void Camera_MoveLeft_KeyDown( camera_t& camera ){
 468         Camera_setMovementFlags( camera, MOVE_STRAFELEFT );
 469 }
 470 void Camera_MoveLeft_KeyUp( camera_t& camera ){
 471         Camera_clearMovementFlags( camera, MOVE_STRAFELEFT );
 472 }
 473 void Camera_MoveRight_KeyDown( camera_t& camera ){
 474         Camera_setMovementFlags( camera, MOVE_STRAFERIGHT );
 475 }
 476 void Camera_MoveRight_KeyUp( camera_t& camera ){
 477         Camera_clearMovementFlags( camera, MOVE_STRAFERIGHT );
 478 }
 479
 480 void Camera_MoveUp_KeyDown( camera_t& camera ){
 481         Camera_setMovementFlags( camera, MOVE_UP );
 482 }
 483 void Camera_MoveUp_KeyUp( camera_t& camera ){
 484         Camera_clearMovementFlags( camera, MOVE_UP );
 485 }
 486 void Camera_MoveDown_KeyDown( camera_t& camera ){
 487         Camera_setMovementFlags( camera, MOVE_DOWN );
 488 }
 489 void Camera_MoveDown_KeyUp( camera_t& camera ){
 490         Camera_clearMovementFlags( camera, MOVE_DOWN );
 491 }
 492
 493 void Camera_RotateLeft_KeyDown( camera_t& camera ){
 494         Camera_setMovementFlags( camera, MOVE_ROTLEFT );
 495 }
 496 void Camera_RotateLeft_KeyUp( camera_t& camera ){
 497         Camera_clearMovementFlags( camera, MOVE_ROTLEFT );
 498 }
 499 void Camera_RotateRight_KeyDown( camera_t& camera ){
 500         Camera_setMovementFlags( camera, MOVE_ROTRIGHT );
 501 }
 502 void Camera_RotateRight_KeyUp( camera_t& camera ){
 503         Camera_clearMovementFlags( camera, MOVE_ROTRIGHT );
 504 }
 505
 506 void Camera_PitchUp_KeyDown( camera_t& camera ){
 507         Camera_setMovementFlags( camera, MOVE_PITCHUP );
 508 }
 509 void Camera_PitchUp_KeyUp( camera_t& camera ){
 510         Camera_clearMovementFlags( camera, MOVE_PITCHUP );
 511 }
 512 void Camera_PitchDown_KeyDown( camera_t& camera ){
 513         Camera_setMovementFlags( camera, MOVE_PITCHDOWN );
 514 }
 515 void Camera_PitchDown_KeyUp( camera_t& camera ){
 516         Camera_clearMovementFlags( camera, MOVE_PITCHDOWN );
 517 }
 518
 519
 520 typedef ReferenceCaller<camera_t, &Camera_MoveForward_KeyDown> FreeMoveCameraMoveForwardKeyDownCaller;
 521 typedef ReferenceCaller<camera_t, &Camera_MoveForward_KeyUp> FreeMoveCameraMoveForwardKeyUpCaller;
 522 typedef ReferenceCaller<camera_t, &Camera_MoveBack_KeyDown> FreeMoveCameraMoveBackKeyDownCaller;
 523 typedef ReferenceCaller<camera_t, &Camera_MoveBack_KeyUp> FreeMoveCameraMoveBackKeyUpCaller;
 524 typedef ReferenceCaller<camera_t, &Camera_MoveLeft_KeyDown> FreeMoveCameraMoveLeftKeyDownCaller;
 525 typedef ReferenceCaller<camera_t, &Camera_MoveLeft_KeyUp> FreeMoveCameraMoveLeftKeyUpCaller;
 526 typedef ReferenceCaller<camera_t, &Camera_MoveRight_KeyDown> FreeMoveCameraMoveRightKeyDownCaller;
 527 typedef ReferenceCaller<camera_t, &Camera_MoveRight_KeyUp> FreeMoveCameraMoveRightKeyUpCaller;
 528 typedef ReferenceCaller<camera_t, &Camera_MoveUp_KeyDown> FreeMoveCameraMoveUpKeyDownCaller;
 529 typedef ReferenceCaller<camera_t, &Camera_MoveUp_KeyUp> FreeMoveCameraMoveUpKeyUpCaller;
 530 typedef ReferenceCaller<camera_t, &Camera_MoveDown_KeyDown> FreeMoveCameraMoveDownKeyDownCaller;
 531 typedef ReferenceCaller<camera_t, &Camera_MoveDown_KeyUp> FreeMoveCameraMoveDownKeyUpCaller;
 532
 533
 534 #define SPEED_MOVE 32
 535 #define SPEED_TURN 22.5
 536 #define MIN_CAM_SPEED 10
 537 #define MAX_CAM_SPEED 610
 538 #define CAM_SPEED_STEP 50
 539
 540 void Camera_MoveForward_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 void Camera_MoveBack_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
 549 void Camera_MoveUp_Discrete( camera_t& camera ){
 550         Vector3 origin( Camera_getOrigin( camera ) );
 551         origin[2] += SPEED_MOVE;
 552         Camera_setOrigin( camera, origin );
 553 }
 554 void Camera_MoveDown_Discrete( camera_t& camera ){
 555         Vector3 origin( Camera_getOrigin( camera ) );
 556         origin[2] -= SPEED_MOVE;
 557         Camera_setOrigin( camera, origin );
 558 }
 559
 560 void Camera_MoveLeft_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 void Camera_MoveRight_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
 569 void Camera_RotateLeft_Discrete( camera_t& camera ){
 570         Vector3 angles( Camera_getAngles( camera ) );
 571         angles[CAMERA_YAW] += SPEED_TURN;
 572         Camera_setAngles( camera, angles );
 573 }
 574 void Camera_RotateRight_Discrete( camera_t& camera ){
 575         Vector3 angles( Camera_getAngles( camera ) );
 576         angles[CAMERA_YAW] -= SPEED_TURN;
 577         Camera_setAngles( camera, angles );
 578 }
 579
 580 void Camera_PitchUp_Discrete( camera_t& camera ){
 581         Vector3 angles( Camera_getAngles( camera ) );
 582         angles[CAMERA_PITCH] += SPEED_TURN;
 583         if ( angles[CAMERA_PITCH] > 90 ) {
 584                 angles[CAMERA_PITCH] = 90;
 585         }
 586         Camera_setAngles( camera, angles );
 587 }
 588 void Camera_PitchDown_Discrete( camera_t& camera ){
 589         Vector3 angles( Camera_getAngles( camera ) );
 590         angles[CAMERA_PITCH] -= SPEED_TURN;
 591         if ( angles[CAMERA_PITCH] < -90 ) {
 592                 angles[CAMERA_PITCH] = -90;
 593         }
 594         Camera_setAngles( camera, angles );
 595 }
 596
 597
 598 class RadiantCameraView : public CameraView
 599 {
 600 camera_t& m_camera;
 601 View* m_view;
 602 Callback m_update;
 603 public:
 604 RadiantCameraView( camera_t& camera, View* view, const Callback& update ) : m_camera( camera ), m_view( view ), m_update( update ){
 605 }
 606 void update(){
 607         m_view->Construct( m_camera.projection, m_camera.modelview, m_camera.width, m_camera.height );
 608         m_update();
 609 }
 610 void setModelview( const Matrix4& modelview ){
 611         m_camera.modelview = modelview;
 612         matrix4_multiply_by_matrix4( m_camera.modelview, g_radiant2opengl );
 613         matrix4_affine_invert( m_camera.modelview );
 614         Camera_updateVectors( m_camera );
 615         update();
 616 }
 617 void setFieldOfView( float fieldOfView ){
 618         float farClip = Camera_getFarClipPlane( m_camera );
 619         m_camera.projection = projection_for_camera( farClip / 4096.0f, farClip, fieldOfView, m_camera.width, m_camera.height );
 620         update();
 621 }
 622 };
 623
 624
 625 void Camera_motionDelta( int x, int y, unsigned int state, void* data ){
 626         camera_t* cam = reinterpret_cast<camera_t*>( data );
 627
 628         cam->m_mouseMove.motion_delta( x, y, state );
 629
 630         switch ( g_camwindow_globals_private.m_nStrafeMode )
 631         {
 632         case 0:
 633                 cam->m_strafe = ( state & GDK_CONTROL_MASK ) != 0;
 634                 if ( cam->m_strafe ) {
 635                         cam->m_strafe_forward = ( state & GDK_SHIFT_MASK ) != 0;
 636                 }
 637                 else{
 638                         cam->m_strafe_forward = false;
 639                 }
 640                 break;
 641         case 1:
 642                 cam->m_strafe = ( state & GDK_CONTROL_MASK ) != 0 && ( state & GDK_SHIFT_MASK ) == 0;
 643                 cam->m_strafe_forward = false;
 644                 break;
 645         case 2:
 646                 cam->m_strafe = ( state & GDK_CONTROL_MASK ) != 0 && ( state & GDK_SHIFT_MASK ) == 0;
 647                 cam->m_strafe_forward = cam->m_strafe;
 648                 break;
 649         }
 650 }
 651
 652 class CamWnd
 653 {
 654 View m_view;
 655 camera_t m_Camera;
 656 RadiantCameraView m_cameraview;
 657 #if 0
 658 int m_PositionDragCursorX;
 659 int m_PositionDragCursorY;
 660 #endif
 661
 662 guint m_freemove_handle_focusout;
 663
 664 static Shader* m_state_select1;
 665 static Shader* m_state_select2;
 666
 667 FreezePointer m_freezePointer;
 668
 669 public:
 670 GtkWidget* m_gl_widget;
 671 GtkWindow* m_parent;
 672
 673 SelectionSystemWindowObserver* m_window_observer;
 674 XORRectangle m_XORRectangle;
 675
 676 DeferredDraw m_deferredDraw;
 677 DeferredMotion m_deferred_motion;
 678
 679 guint m_selection_button_press_handler;
 680 guint m_selection_button_release_handler;
 681 guint m_selection_motion_handler;
 682
 683 guint m_freelook_button_press_handler;
 684
 685 guint m_sizeHandler;
 686 guint m_exposeHandler;
 687
 688 CamWnd();
 689 ~CamWnd();
 690
 691 bool m_drawing;
 692 void queue_draw(){
 693         //ASSERT_MESSAGE(!m_drawing, "CamWnd::queue_draw(): called while draw is already in progress");
 694         if ( m_drawing ) {
 695                 return;
 696         }
 697         //globalOutputStream() << "queue... ";
 698         m_deferredDraw.draw();
 699 }
 700 void draw();
 701
 702 static void captureStates(){
 703         m_state_select1 = GlobalShaderCache().capture( "$CAM_HIGHLIGHT" );
 704         m_state_select2 = GlobalShaderCache().capture( "$CAM_OVERLAY" );
 705 }
 706 static void releaseStates(){
 707         GlobalShaderCache().release( "$CAM_HIGHLIGHT" );
 708         GlobalShaderCache().release( "$CAM_OVERLAY" );
 709 }
 710
 711 camera_t& getCamera(){
 712         return m_Camera;
 713 };
 714
 715 void BenchMark();
 716 void Cam_ChangeFloor( bool up );
 717
 718 void DisableFreeMove();
 719 void EnableFreeMove();
 720 bool m_bFreeMove;
 721
 722 CameraView& getCameraView(){
 723         return m_cameraview;
 724 }
 725
 726 private:
 727 void Cam_Draw();
 728 };
 729
 730 typedef MemberCaller<CamWnd, &CamWnd::queue_draw> CamWndQueueDraw;
 731
 732 Shader* CamWnd::m_state_select1 = 0;
 733 Shader* CamWnd::m_state_select2 = 0;
 734
 735 CamWnd* NewCamWnd(){
 736         return new CamWnd;
 737 }
 738 void DeleteCamWnd( CamWnd* camwnd ){
 739         delete camwnd;
 740 }
 741
 742 void CamWnd_constructStatic(){
 743         CamWnd::captureStates();
 744 }
 745
 746 void CamWnd_destroyStatic(){
 747         CamWnd::releaseStates();
 748 }
 749
 750 static CamWnd* g_camwnd = 0;
 751
 752 void GlobalCamera_setCamWnd( CamWnd& camwnd ){
 753         g_camwnd = &camwnd;
 754 }
 755
 756
 757 GtkWidget* CamWnd_getWidget( CamWnd& camwnd ){
 758         return camwnd.m_gl_widget;
 759 }
 760
 761 GtkWindow* CamWnd_getParent( CamWnd& camwnd ){
 762         return camwnd.m_parent;
 763 }
 764
 765 ToggleShown g_camera_shown( true );
 766
 767 void CamWnd_setParent( CamWnd& camwnd, GtkWindow* parent ){
 768         camwnd.m_parent = parent;
 769         g_camera_shown.connect( GTK_WIDGET( camwnd.m_parent ) );
 770 }
 771
 772 void CamWnd_Update( CamWnd& camwnd ){
 773         camwnd.queue_draw();
 774 }
 775
 776
 777
 778 camwindow_globals_t g_camwindow_globals;
 779
 780 const Vector3& Camera_getOrigin( CamWnd& camwnd ){
 781         return Camera_getOrigin( camwnd.getCamera() );
 782 }
 783
 784 void Camera_setOrigin( CamWnd& camwnd, const Vector3& origin ){
 785         Camera_setOrigin( camwnd.getCamera(), origin );
 786 }
 787
 788 const Vector3& Camera_getAngles( CamWnd& camwnd ){
 789         return Camera_getAngles( camwnd.getCamera() );
 790 }
 791
 792 void Camera_setAngles( CamWnd& camwnd, const Vector3& angles ){
 793         Camera_setAngles( camwnd.getCamera(), angles );
 794 }
 795
 796
 797 // =============================================================================
 798 // CamWnd class
 799
 800 gboolean enable_freelook_button_press( GtkWidget* widget, GdkEventButton* event, CamWnd* camwnd ){
 801         if ( event->type == GDK_BUTTON_PRESS && event->button == 3 ) {
 802                 camwnd->EnableFreeMove();
 803                 return TRUE;
 804         }
 805         return FALSE;
 806 }
 807
 808 gboolean disable_freelook_button_press( GtkWidget* widget, GdkEventButton* event, CamWnd* camwnd ){
 809         if ( event->type == GDK_BUTTON_PRESS && event->button == 3 ) {
 810                 camwnd->DisableFreeMove();
 811                 return TRUE;
 812         }
 813         return FALSE;
 814 }
 815
 816 #if 0
 817 gboolean mousecontrol_button_press( GtkWidget* widget, GdkEventButton* event, CamWnd* camwnd ){
 818         if ( event->type == GDK_BUTTON_PRESS && event->button == 3 ) {
 819                 Cam_MouseControl( camwnd->getCamera(), event->x, widget->allocation.height - 1 - event->y );
 820         }
 821         return FALSE;
 822 }
 823 #endif
 824
 825 void camwnd_update_xor_rectangle( CamWnd& self, rect_t area ){
 826         if ( GTK_WIDGET_VISIBLE( self.m_gl_widget ) ) {
 827                 self.m_XORRectangle.set( rectangle_from_area( area.min, area.max, self.getCamera().width, self.getCamera().height ) );
 828         }
 829 }
 830
 831
 832 gboolean selection_button_press( GtkWidget* widget, GdkEventButton* event, WindowObserver* observer ){
 833         if ( event->type == GDK_BUTTON_PRESS ) {
 834                 observer->onMouseDown( WindowVector_forDouble( event->x, event->y ), button_for_button( event->button ), modifiers_for_state( event->state ) );
 835         }
 836         return FALSE;
 837 }
 838
 839 gboolean selection_button_release( GtkWidget* widget, GdkEventButton* event, WindowObserver* observer ){
 840         if ( event->type == GDK_BUTTON_RELEASE ) {
 841                 observer->onMouseUp( WindowVector_forDouble( event->x, event->y ), button_for_button( event->button ), modifiers_for_state( event->state ) );
 842         }
 843         return FALSE;
 844 }
 845
 846 void selection_motion( gdouble x, gdouble y, guint state, void* data ){
 847         //globalOutputStream() << "motion... ";
 848         reinterpret_cast<WindowObserver*>( data )->onMouseMotion( WindowVector_forDouble( x, y ), modifiers_for_state( state ) );
 849 }
 850
 851 inline WindowVector windowvector_for_widget_centre( GtkWidget* widget ){
 852         return WindowVector( static_cast<float>( widget->allocation.width / 2 ), static_cast<float>( widget->allocation.height / 2 ) );
 853 }
 854
 855 gboolean selection_button_press_freemove( GtkWidget* widget, GdkEventButton* event, WindowObserver* observer ){
 856         if ( event->type == GDK_BUTTON_PRESS ) {
 857                 observer->onMouseDown( windowvector_for_widget_centre( widget ), button_for_button( event->button ), modifiers_for_state( event->state ) );
 858         }
 859         return FALSE;
 860 }
 861
 862 gboolean selection_button_release_freemove( GtkWidget* widget, GdkEventButton* event, WindowObserver* observer ){
 863         if ( event->type == GDK_BUTTON_RELEASE ) {
 864                 observer->onMouseUp( windowvector_for_widget_centre( widget ), button_for_button( event->button ), modifiers_for_state( event->state ) );
 865         }
 866         return FALSE;
 867 }
 868
 869 gboolean selection_motion_freemove( GtkWidget *widget, GdkEventMotion *event, WindowObserver* observer ){
 870         observer->onMouseMotion( windowvector_for_widget_centre( widget ), modifiers_for_state( event->state ) );
 871         return FALSE;
 872 }
 873
 874 gboolean wheelmove_scroll( GtkWidget* widget, GdkEventScroll* event, CamWnd* camwnd ){
 875         if ( event->direction == GDK_SCROLL_UP ) {
 876                 Camera_Freemove_updateAxes( camwnd->getCamera() );
 877                 Camera_setOrigin( *camwnd, vector3_added( Camera_getOrigin( *camwnd ), vector3_scaled( camwnd->getCamera().forward, static_cast<float>( g_camwindow_globals_private.m_nMoveSpeed ) ) ) );
 878         }
 879         else if ( event->direction == GDK_SCROLL_DOWN ) {
 880                 Camera_Freemove_updateAxes( camwnd->getCamera() );
 881                 Camera_setOrigin( *camwnd, vector3_added( Camera_getOrigin( *camwnd ), vector3_scaled( camwnd->getCamera().forward, -static_cast<float>( g_camwindow_globals_private.m_nMoveSpeed ) ) ) );
 882         }
 883
 884         return FALSE;
 885 }
 886
 887 gboolean camera_size_allocate( GtkWidget* widget, GtkAllocation* allocation, CamWnd* camwnd ){
 888         camwnd->getCamera().width = allocation->width;
 889         camwnd->getCamera().height = allocation->height;
 890         Camera_updateProjection( camwnd->getCamera() );
 891         camwnd->m_window_observer->onSizeChanged( camwnd->getCamera().width, camwnd->getCamera().height );
 892         camwnd->queue_draw();
 893         return FALSE;
 894 }
 895
 896 gboolean camera_expose( GtkWidget* widget, GdkEventExpose* event, gpointer data ){
 897         reinterpret_cast<CamWnd*>( data )->draw();
 898         return FALSE;
 899 }
 900
 901 void KeyEvent_connect( const char* name ){
 902         const KeyEvent& keyEvent = GlobalKeyEvents_find( name );
 903         keydown_accelerators_add( keyEvent.m_accelerator, keyEvent.m_keyDown );
 904         keyup_accelerators_add( keyEvent.m_accelerator, keyEvent.m_keyUp );
 905 }
 906
 907 void KeyEvent_disconnect( const char* name ){
 908         const KeyEvent& keyEvent = GlobalKeyEvents_find( name );
 909         keydown_accelerators_remove( keyEvent.m_accelerator );
 910         keyup_accelerators_remove( keyEvent.m_accelerator );
 911 }
 912
 913 void CamWnd_registerCommands( CamWnd& camwnd ){
 914         GlobalKeyEvents_insert( "CameraForward", Accelerator( GDK_Up ),
 915                                                         ReferenceCaller<camera_t, Camera_MoveForward_KeyDown>( camwnd.getCamera() ),
 916                                                         ReferenceCaller<camera_t, Camera_MoveForward_KeyUp>( camwnd.getCamera() )
 917                                                         );
 918         GlobalKeyEvents_insert( "CameraBack", Accelerator( GDK_Down ),
 919                                                         ReferenceCaller<camera_t, Camera_MoveBack_KeyDown>( camwnd.getCamera() ),
 920                                                         ReferenceCaller<camera_t, Camera_MoveBack_KeyUp>( camwnd.getCamera() )
 921                                                         );
 922         GlobalKeyEvents_insert( "CameraLeft", Accelerator( GDK_Left ),
 923                                                         ReferenceCaller<camera_t, Camera_RotateLeft_KeyDown>( camwnd.getCamera() ),
 924                                                         ReferenceCaller<camera_t, Camera_RotateLeft_KeyUp>( camwnd.getCamera() )
 925                                                         );
 926         GlobalKeyEvents_insert( "CameraRight", Accelerator( GDK_Right ),
 927                                                         ReferenceCaller<camera_t, Camera_RotateRight_KeyDown>( camwnd.getCamera() ),
 928                                                         ReferenceCaller<camera_t, Camera_RotateRight_KeyUp>( camwnd.getCamera() )
 929                                                         );
 930         GlobalKeyEvents_insert( "CameraStrafeRight", Accelerator( GDK_period ),
 931                                                         ReferenceCaller<camera_t, Camera_MoveRight_KeyDown>( camwnd.getCamera() ),
 932                                                         ReferenceCaller<camera_t, Camera_MoveRight_KeyUp>( camwnd.getCamera() )
 933                                                         );
 934         GlobalKeyEvents_insert( "CameraStrafeLeft", Accelerator( GDK_comma ),
 935                                                         ReferenceCaller<camera_t, Camera_MoveLeft_KeyDown>( camwnd.getCamera() ),
 936                                                         ReferenceCaller<camera_t, Camera_MoveLeft_KeyUp>( camwnd.getCamera() )
 937                                                         );
 938         GlobalKeyEvents_insert( "CameraUp", Accelerator( 'D' ),
 939                                                         ReferenceCaller<camera_t, Camera_MoveUp_KeyDown>( camwnd.getCamera() ),
 940                                                         ReferenceCaller<camera_t, Camera_MoveUp_KeyUp>( camwnd.getCamera() )
 941                                                         );
 942         GlobalKeyEvents_insert( "CameraDown", Accelerator( 'C' ),
 943                                                         ReferenceCaller<camera_t, Camera_MoveDown_KeyDown>( camwnd.getCamera() ),
 944                                                         ReferenceCaller<camera_t, Camera_MoveDown_KeyUp>( camwnd.getCamera() )
 945                                                         );
 946         GlobalKeyEvents_insert( "CameraAngleDown", Accelerator( 'A' ),
 947                                                         ReferenceCaller<camera_t, Camera_PitchDown_KeyDown>( camwnd.getCamera() ),
 948                                                         ReferenceCaller<camera_t, Camera_PitchDown_KeyUp>( camwnd.getCamera() )
 949                                                         );
 950         GlobalKeyEvents_insert( "CameraAngleUp", Accelerator( 'Z' ),
 951                                                         ReferenceCaller<camera_t, Camera_PitchUp_KeyDown>( camwnd.getCamera() ),
 952                                                         ReferenceCaller<camera_t, Camera_PitchUp_KeyUp>( camwnd.getCamera() )
 953                                                         );
 954
 955         GlobalKeyEvents_insert( "CameraFreeMoveForward", Accelerator( GDK_Up ),
 956                                                         FreeMoveCameraMoveForwardKeyDownCaller( camwnd.getCamera() ),
 957                                                         FreeMoveCameraMoveForwardKeyUpCaller( camwnd.getCamera() )
 958                                                         );
 959         GlobalKeyEvents_insert( "CameraFreeMoveBack", Accelerator( GDK_Down ),
 960                                                         FreeMoveCameraMoveBackKeyDownCaller( camwnd.getCamera() ),
 961                                                         FreeMoveCameraMoveBackKeyUpCaller( camwnd.getCamera() )
 962                                                         );
 963         GlobalKeyEvents_insert( "CameraFreeMoveLeft", Accelerator( GDK_Left ),
 964                                                         FreeMoveCameraMoveLeftKeyDownCaller( camwnd.getCamera() ),
 965                                                         FreeMoveCameraMoveLeftKeyUpCaller( camwnd.getCamera() )
 966                                                         );
 967         GlobalKeyEvents_insert( "CameraFreeMoveRight", Accelerator( GDK_Right ),
 968                                                         FreeMoveCameraMoveRightKeyDownCaller( camwnd.getCamera() ),
 969                                                         FreeMoveCameraMoveRightKeyUpCaller( camwnd.getCamera() )
 970                                                         );
 971         GlobalKeyEvents_insert( "CameraFreeMoveUp", Accelerator( 'D' ),
 972                                                         FreeMoveCameraMoveUpKeyDownCaller( camwnd.getCamera() ),
 973                                                         FreeMoveCameraMoveUpKeyUpCaller( camwnd.getCamera() )
 974                                                         );
 975         GlobalKeyEvents_insert( "CameraFreeMoveDown", Accelerator( 'C' ),
 976                                                         FreeMoveCameraMoveDownKeyDownCaller( camwnd.getCamera() ),
 977                                                         FreeMoveCameraMoveDownKeyUpCaller( camwnd.getCamera() )
 978                                                         );
 979
 980         GlobalCommands_insert( "CameraForward", ReferenceCaller<camera_t, Camera_MoveForward_Discrete>( camwnd.getCamera() ), Accelerator( GDK_Up ) );
 981         GlobalCommands_insert( "CameraBack", ReferenceCaller<camera_t, Camera_MoveBack_Discrete>( camwnd.getCamera() ), Accelerator( GDK_Down ) );
 982         GlobalCommands_insert( "CameraLeft", ReferenceCaller<camera_t, Camera_RotateLeft_Discrete>( camwnd.getCamera() ), Accelerator( GDK_Left ) );
 983         GlobalCommands_insert( "CameraRight", ReferenceCaller<camera_t, Camera_RotateRight_Discrete>( camwnd.getCamera() ), Accelerator( GDK_Right ) );
 984         GlobalCommands_insert( "CameraStrafeRight", ReferenceCaller<camera_t, Camera_MoveRight_Discrete>( camwnd.getCamera() ), Accelerator( GDK_period ) );
 985         GlobalCommands_insert( "CameraStrafeLeft", ReferenceCaller<camera_t, Camera_MoveLeft_Discrete>( camwnd.getCamera() ), Accelerator( GDK_comma ) );
 986
 987         GlobalCommands_insert( "CameraUp", ReferenceCaller<camera_t, Camera_MoveUp_Discrete>( camwnd.getCamera() ), Accelerator( 'D' ) );
 988         GlobalCommands_insert( "CameraDown", ReferenceCaller<camera_t, Camera_MoveDown_Discrete>( camwnd.getCamera() ), Accelerator( 'C' ) );
 989         GlobalCommands_insert( "CameraAngleUp", ReferenceCaller<camera_t, Camera_PitchUp_Discrete>( camwnd.getCamera() ), Accelerator( 'A' ) );
 990         GlobalCommands_insert( "CameraAngleDown", ReferenceCaller<camera_t, Camera_PitchDown_Discrete>( camwnd.getCamera() ), Accelerator( 'Z' ) );
 991 }
 992
 993 void CamWnd_Move_Enable( CamWnd& camwnd ){
 994         KeyEvent_connect( "CameraForward" );
 995         KeyEvent_connect( "CameraBack" );
 996         KeyEvent_connect( "CameraLeft" );
 997         KeyEvent_connect( "CameraRight" );
 998         KeyEvent_connect( "CameraStrafeRight" );
 999         KeyEvent_connect( "CameraStrafeLeft" );
1000         KeyEvent_connect( "CameraUp" );
1001         KeyEvent_connect( "CameraDown" );
1002         KeyEvent_connect( "CameraAngleUp" );
1003         KeyEvent_connect( "CameraAngleDown" );
1004 }
1005
1006 void CamWnd_Move_Disable( CamWnd& camwnd ){
1007         KeyEvent_disconnect( "CameraForward" );
1008         KeyEvent_disconnect( "CameraBack" );
1009         KeyEvent_disconnect( "CameraLeft" );
1010         KeyEvent_disconnect( "CameraRight" );
1011         KeyEvent_disconnect( "CameraStrafeRight" );
1012         KeyEvent_disconnect( "CameraStrafeLeft" );
1013         KeyEvent_disconnect( "CameraUp" );
1014         KeyEvent_disconnect( "CameraDown" );
1015         KeyEvent_disconnect( "CameraAngleUp" );
1016         KeyEvent_disconnect( "CameraAngleDown" );
1017 }
1018
1019 void CamWnd_Move_Discrete_Enable( CamWnd& camwnd ){
1020         command_connect_accelerator( "CameraForward" );
1021         command_connect_accelerator( "CameraBack" );
1022         command_connect_accelerator( "CameraLeft" );
1023         command_connect_accelerator( "CameraRight" );
1024         command_connect_accelerator( "CameraStrafeRight" );
1025         command_connect_accelerator( "CameraStrafeLeft" );
1026         command_connect_accelerator( "CameraUp" );
1027         command_connect_accelerator( "CameraDown" );
1028         command_connect_accelerator( "CameraAngleUp" );
1029         command_connect_accelerator( "CameraAngleDown" );
1030 }
1031
1032 void CamWnd_Move_Discrete_Disable( CamWnd& camwnd ){
1033         command_disconnect_accelerator( "CameraForward" );
1034         command_disconnect_accelerator( "CameraBack" );
1035         command_disconnect_accelerator( "CameraLeft" );
1036         command_disconnect_accelerator( "CameraRight" );
1037         command_disconnect_accelerator( "CameraStrafeRight" );
1038         command_disconnect_accelerator( "CameraStrafeLeft" );
1039         command_disconnect_accelerator( "CameraUp" );
1040         command_disconnect_accelerator( "CameraDown" );
1041         command_disconnect_accelerator( "CameraAngleUp" );
1042         command_disconnect_accelerator( "CameraAngleDown" );
1043 }
1044
1045 void CamWnd_Move_Discrete_Import( CamWnd& camwnd, bool value ){
1046         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1047                 CamWnd_Move_Discrete_Disable( camwnd );
1048         }
1049         else
1050         {
1051                 CamWnd_Move_Disable( camwnd );
1052         }
1053
1054         g_camwindow_globals_private.m_bCamDiscrete = value;
1055
1056         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1057                 CamWnd_Move_Discrete_Enable( camwnd );
1058         }
1059         else
1060         {
1061                 CamWnd_Move_Enable( camwnd );
1062         }
1063 }
1064
1065 void CamWnd_Move_Discrete_Import( bool value ){
1066         if ( g_camwnd != 0 ) {
1067                 CamWnd_Move_Discrete_Import( *g_camwnd, value );
1068         }
1069         else
1070         {
1071                 g_camwindow_globals_private.m_bCamDiscrete = value;
1072         }
1073 }
1074
1075
1076
1077 void CamWnd_Add_Handlers_Move( CamWnd& camwnd ){
1078         camwnd.m_selection_button_press_handler = g_signal_connect( G_OBJECT( camwnd.m_gl_widget ), "button_press_event", G_CALLBACK( selection_button_press ), camwnd.m_window_observer );
1079         camwnd.m_selection_button_release_handler = g_signal_connect( G_OBJECT( camwnd.m_gl_widget ), "button_release_event", G_CALLBACK( selection_button_release ), camwnd.m_window_observer );
1080         camwnd.m_selection_motion_handler = g_signal_connect( G_OBJECT( camwnd.m_gl_widget ), "motion_notify_event", G_CALLBACK( DeferredMotion::gtk_motion ), &camwnd.m_deferred_motion );
1081
1082         camwnd.m_freelook_button_press_handler = g_signal_connect( G_OBJECT( camwnd.m_gl_widget ), "button_press_event", G_CALLBACK( enable_freelook_button_press ), &camwnd );
1083
1084         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1085                 CamWnd_Move_Discrete_Enable( camwnd );
1086         }
1087         else
1088         {
1089                 CamWnd_Move_Enable( camwnd );
1090         }
1091 }
1092
1093 void CamWnd_Remove_Handlers_Move( CamWnd& camwnd ){
1094         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_press_handler );
1095         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_release_handler );
1096         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_motion_handler );
1097
1098         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_freelook_button_press_handler );
1099
1100         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1101                 CamWnd_Move_Discrete_Disable( camwnd );
1102         }
1103         else
1104         {
1105                 CamWnd_Move_Disable( camwnd );
1106         }
1107 }
1108
1109 void CamWnd_Add_Handlers_FreeMove( CamWnd& camwnd ){
1110         camwnd.m_selection_button_press_handler = g_signal_connect( G_OBJECT( camwnd.m_gl_widget ), "button_press_event", G_CALLBACK( selection_button_press_freemove ), camwnd.m_window_observer );
1111         camwnd.m_selection_button_release_handler = g_signal_connect( G_OBJECT( camwnd.m_gl_widget ), "button_release_event", G_CALLBACK( selection_button_release_freemove ), camwnd.m_window_observer );
1112         camwnd.m_selection_motion_handler = g_signal_connect( G_OBJECT( camwnd.m_gl_widget ), "motion_notify_event", G_CALLBACK( selection_motion_freemove ), camwnd.m_window_observer );
1113
1114         camwnd.m_freelook_button_press_handler = g_signal_connect( G_OBJECT( camwnd.m_gl_widget ), "button_press_event", G_CALLBACK( disable_freelook_button_press ), &camwnd );
1115
1116         KeyEvent_connect( "CameraFreeMoveForward" );
1117         KeyEvent_connect( "CameraFreeMoveBack" );
1118         KeyEvent_connect( "CameraFreeMoveLeft" );
1119         KeyEvent_connect( "CameraFreeMoveRight" );
1120         KeyEvent_connect( "CameraFreeMoveUp" );
1121         KeyEvent_connect( "CameraFreeMoveDown" );
1122 }
1123
1124 void CamWnd_Remove_Handlers_FreeMove( CamWnd& camwnd ){
1125         KeyEvent_disconnect( "CameraFreeMoveForward" );
1126         KeyEvent_disconnect( "CameraFreeMoveBack" );
1127         KeyEvent_disconnect( "CameraFreeMoveLeft" );
1128         KeyEvent_disconnect( "CameraFreeMoveRight" );
1129         KeyEvent_disconnect( "CameraFreeMoveUp" );
1130         KeyEvent_disconnect( "CameraFreeMoveDown" );
1131
1132         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_press_handler );
1133         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_release_handler );
1134         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_motion_handler );
1135
1136         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_freelook_button_press_handler );
1137 }
1138
1139 CamWnd::CamWnd() :
1140         m_view( true ),
1141         m_Camera( &m_view, CamWndQueueDraw( *this ) ),
1142         m_cameraview( m_Camera, &m_view, ReferenceCaller<CamWnd, CamWnd_Update>( *this ) ),
1143         m_gl_widget( glwidget_new( TRUE ) ),
1144         m_window_observer( NewWindowObserver() ),
1145         m_XORRectangle( m_gl_widget ),
1146         m_deferredDraw( WidgetQueueDrawCaller( *m_gl_widget ) ),
1147         m_deferred_motion( selection_motion, m_window_observer ),
1148         m_selection_button_press_handler( 0 ),
1149         m_selection_button_release_handler( 0 ),
1150         m_selection_motion_handler( 0 ),
1151         m_freelook_button_press_handler( 0 ),
1152         m_drawing( false ){
1153         m_bFreeMove = false;
1154
1155         GlobalWindowObservers_add( m_window_observer );
1156         GlobalWindowObservers_connectWidget( m_gl_widget );
1157
1158         m_window_observer->setRectangleDrawCallback( ReferenceCaller1<CamWnd, rect_t, camwnd_update_xor_rectangle>( *this ) );
1159         m_window_observer->setView( m_view );
1160
1161         gtk_widget_ref( m_gl_widget );
1162
1163         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 );
1164         GTK_WIDGET_SET_FLAGS( m_gl_widget, GTK_CAN_FOCUS );
1165
1166         m_sizeHandler = g_signal_connect( G_OBJECT( m_gl_widget ), "size_allocate", G_CALLBACK( camera_size_allocate ), this );
1167         m_exposeHandler = g_signal_connect( G_OBJECT( m_gl_widget ), "expose_event", G_CALLBACK( camera_expose ), this );
1168
1169         Map_addValidCallback( g_map, DeferredDrawOnMapValidChangedCaller( m_deferredDraw ) );
1170
1171         CamWnd_registerCommands( *this );
1172
1173         CamWnd_Add_Handlers_Move( *this );
1174
1175         g_signal_connect( G_OBJECT( m_gl_widget ), "scroll_event", G_CALLBACK( wheelmove_scroll ), this );
1176
1177         AddSceneChangeCallback( ReferenceCaller<CamWnd, CamWnd_Update>( *this ) );
1178
1179         PressedButtons_connect( g_pressedButtons, m_gl_widget );
1180 }
1181
1182 CamWnd::~CamWnd(){
1183         if ( m_bFreeMove ) {
1184                 DisableFreeMove();
1185         }
1186
1187         CamWnd_Remove_Handlers_Move( *this );
1188
1189         g_signal_handler_disconnect( G_OBJECT( m_gl_widget ), m_sizeHandler );
1190         g_signal_handler_disconnect( G_OBJECT( m_gl_widget ), m_exposeHandler );
1191
1192         gtk_widget_unref( m_gl_widget );
1193
1194         m_window_observer->release();
1195 }
1196
1197 class FloorHeightWalker : public scene::Graph::Walker
1198 {
1199 float m_current;
1200 float& m_bestUp;
1201 float& m_bestDown;
1202 public:
1203 FloorHeightWalker( float current, float& bestUp, float& bestDown ) :
1204         m_current( current ), m_bestUp( bestUp ), m_bestDown( bestDown ){
1205         bestUp = g_MaxWorldCoord;
1206         bestDown = -g_MaxWorldCoord;
1207 }
1208 bool pre( const scene::Path& path, scene::Instance& instance ) const {
1209         if ( path.top().get().visible()
1210                  && Node_isBrush( path.top() ) ) { // this node is a floor
1211                 const AABB& aabb = instance.worldAABB();
1212                 float floorHeight = aabb.origin.z() + aabb.extents.z();
1213                 if ( floorHeight > m_current && floorHeight < m_bestUp ) {
1214                         m_bestUp = floorHeight;
1215                 }
1216                 if ( floorHeight < m_current && floorHeight > m_bestDown ) {
1217                         m_bestDown = floorHeight;
1218                 }
1219         }
1220         return true;
1221 }
1222 };
1223
1224 void CamWnd::Cam_ChangeFloor( bool up ){
1225         float current = m_Camera.origin[2] - 48;
1226         float bestUp;
1227         float bestDown;
1228         GlobalSceneGraph().traverse( FloorHeightWalker( current, bestUp, bestDown ) );
1229
1230         if ( up && bestUp != g_MaxWorldCoord ) {
1231                 current = bestUp;
1232         }
1233         if ( !up && bestDown != -g_MaxWorldCoord ) {
1234                 current = bestDown;
1235         }
1236
1237         m_Camera.origin[2] = current + 48;
1238         Camera_updateModelview( getCamera() );
1239         CamWnd_Update( *this );
1240         CameraMovedNotify();
1241 }
1242
1243
1244 #if 0
1245
1246 // button_press
1247 Sys_GetCursorPos( &m_PositionDragCursorX, &m_PositionDragCursorY );
1248
1249 // motion
1250 if ( ( m_bFreeMove && ( buttons == ( RAD_CONTROL | RAD_SHIFT ) ) )
1251          || ( !m_bFreeMove && ( buttons == ( RAD_RBUTTON | RAD_CONTROL ) ) ) ) {
1252         Cam_PositionDrag();
1253         CamWnd_Update( camwnd );
1254         CameraMovedNotify();
1255         return;
1256 }
1257
1258 void CamWnd::Cam_PositionDrag(){
1259         int x, y;
1260
1261         Sys_GetCursorPos( GTK_WINDOW( m_gl_widget ), &x, &y );
1262         if ( x != m_PositionDragCursorX || y != m_PositionDragCursorY ) {
1263                 x -= m_PositionDragCursorX;
1264                 vector3_add( m_Camera.origin, vector3_scaled( m_Camera.vright, x ) );
1265                 y -= m_PositionDragCursorY;
1266                 m_Camera.origin[2] -= y;
1267                 Camera_updateModelview();
1268                 CamWnd_Update( camwnd );
1269                 CameraMovedNotify();
1270
1271                 Sys_SetCursorPos( GTK_WINDOW( m_parent ), m_PositionDragCursorX, m_PositionDragCursorY );
1272         }
1273 }
1274 #endif
1275
1276
1277 // NOTE TTimo if there's an OS-level focus out of the application
1278 //   then we can release the camera cursor grab
1279 static gboolean camwindow_freemove_focusout( GtkWidget* widget, GdkEventFocus* event, gpointer data ){
1280         reinterpret_cast<CamWnd*>( data )->DisableFreeMove();
1281         return FALSE;
1282 }
1283
1284 void CamWnd::EnableFreeMove(){
1285         //globalOutputStream() << "EnableFreeMove\n";
1286
1287         ASSERT_MESSAGE( !m_bFreeMove, "EnableFreeMove: free-move was already enabled" );
1288         m_bFreeMove = true;
1289         Camera_clearMovementFlags( getCamera(), MOVE_ALL );
1290
1291         CamWnd_Remove_Handlers_Move( *this );
1292         CamWnd_Add_Handlers_FreeMove( *this );
1293
1294         gtk_window_set_focus( m_parent, m_gl_widget );
1295         m_freemove_handle_focusout = g_signal_connect( G_OBJECT( m_gl_widget ), "focus_out_event", G_CALLBACK( camwindow_freemove_focusout ), this );
1296         m_freezePointer.freeze_pointer( m_parent, Camera_motionDelta, &m_Camera );
1297
1298         CamWnd_Update( *this );
1299 }
1300
1301 void CamWnd::DisableFreeMove(){
1302         //globalOutputStream() << "DisableFreeMove\n";
1303
1304         ASSERT_MESSAGE( m_bFreeMove, "DisableFreeMove: free-move was not enabled" );
1305         m_bFreeMove = false;
1306         Camera_clearMovementFlags( getCamera(), MOVE_ALL );
1307
1308         CamWnd_Remove_Handlers_FreeMove( *this );
1309         CamWnd_Add_Handlers_Move( *this );
1310
1311         m_freezePointer.unfreeze_pointer( m_parent );
1312         g_signal_handler_disconnect( G_OBJECT( m_gl_widget ), m_freemove_handle_focusout );
1313
1314         CamWnd_Update( *this );
1315 }
1316
1317
1318 #include "renderer.h"
1319
1320 class CamRenderer : public Renderer
1321 {
1322 struct state_type
1323 {
1324         state_type() : m_highlight( 0 ), m_state( 0 ), m_lights( 0 ){
1325         }
1326         unsigned int m_highlight;
1327         Shader* m_state;
1328         const LightList* m_lights;
1329 };
1330
1331 std::vector<state_type> m_state_stack;
1332 RenderStateFlags m_globalstate;
1333 Shader* m_state_select0;
1334 Shader* m_state_select1;
1335 const Vector3& m_viewer;
1336
1337 public:
1338 CamRenderer( RenderStateFlags globalstate, Shader* select0, Shader* select1, const Vector3& viewer ) :
1339         m_globalstate( globalstate ),
1340         m_state_select0( select0 ),
1341         m_state_select1( select1 ),
1342         m_viewer( viewer ){
1343         ASSERT_NOTNULL( select0 );
1344         ASSERT_NOTNULL( select1 );
1345         m_state_stack.push_back( state_type() );
1346 }
1347
1348 void SetState( Shader* state, EStyle style ){
1349         ASSERT_NOTNULL( state );
1350         if ( style == eFullMaterials ) {
1351                 m_state_stack.back().m_state = state;
1352         }
1353 }
1354 EStyle getStyle() const {
1355         return eFullMaterials;
1356 }
1357 void PushState(){
1358         m_state_stack.push_back( m_state_stack.back() );
1359 }
1360 void PopState(){
1361         ASSERT_MESSAGE( !m_state_stack.empty(), "popping empty stack" );
1362         m_state_stack.pop_back();
1363 }
1364 void Highlight( EHighlightMode mode, bool bEnable = true ){
1365         ( bEnable )
1366         ? m_state_stack.back().m_highlight |= mode
1367                                                                                   : m_state_stack.back().m_highlight &= ~mode;
1368 }
1369 void setLights( const LightList& lights ){
1370         m_state_stack.back().m_lights = &lights;
1371 }
1372 void addRenderable( const OpenGLRenderable& renderable, const Matrix4& world ){
1373         if ( m_state_stack.back().m_highlight & ePrimitive ) {
1374                 m_state_select0->addRenderable( renderable, world, m_state_stack.back().m_lights );
1375         }
1376         if ( m_state_stack.back().m_highlight & eFace ) {
1377                 m_state_select1->addRenderable( renderable, world, m_state_stack.back().m_lights );
1378         }
1379
1380         m_state_stack.back().m_state->addRenderable( renderable, world, m_state_stack.back().m_lights );
1381 }
1382
1383 void render( const Matrix4& modelview, const Matrix4& projection ){
1384         GlobalShaderCache().render( m_globalstate, modelview, projection, m_viewer );
1385 }
1386 };
1387
1388 /*
1389    ==============
1390    Cam_Draw
1391    ==============
1392  */
1393
1394 void ShowStatsToggle(){
1395         g_camwindow_globals_private.m_showStats ^= 1;
1396 }
1397 typedef FreeCaller<ShowStatsToggle> ShowStatsToggleCaller;
1398
1399 void ShowStatsExport( const BoolImportCallback& importer ){
1400         importer( g_camwindow_globals_private.m_showStats );
1401 }
1402 typedef FreeCaller1<const BoolImportCallback&, ShowStatsExport> ShowStatsExportCaller;
1403
1404 ShowStatsExportCaller g_show_stats_caller;
1405 BoolExportCallback g_show_stats_callback( g_show_stats_caller );
1406 ToggleItem g_show_stats( g_show_stats_callback );
1407
1408 void CamWnd::Cam_Draw(){
1409         glViewport( 0, 0, m_Camera.width, m_Camera.height );
1410 #if 0
1411         GLint viewprt[4];
1412         glGetIntegerv( GL_VIEWPORT, viewprt );
1413 #endif
1414
1415         // enable depth buffer writes
1416         glDepthMask( GL_TRUE );
1417         glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
1418
1419         Vector3 clearColour( 0, 0, 0 );
1420         if ( m_Camera.draw_mode != cd_lighting ) {
1421                 clearColour = g_camwindow_globals.color_cameraback;
1422         }
1423
1424         glClearColor( clearColour[0], clearColour[1], clearColour[2], 0 );
1425         glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
1426
1427         extern void Renderer_ResetStats();
1428         Renderer_ResetStats();
1429         extern void Cull_ResetStats();
1430         Cull_ResetStats();
1431
1432         glMatrixMode( GL_PROJECTION );
1433         glLoadMatrixf( reinterpret_cast<const float*>( &m_Camera.projection ) );
1434
1435         glMatrixMode( GL_MODELVIEW );
1436         glLoadMatrixf( reinterpret_cast<const float*>( &m_Camera.modelview ) );
1437
1438
1439         // one directional light source directly behind the viewer
1440         {
1441                 GLfloat inverse_cam_dir[4], ambient[4], diffuse[4]; //, material[4];
1442
1443                 ambient[0] = ambient[1] = ambient[2] = 0.4f;
1444                 ambient[3] = 1.0f;
1445                 diffuse[0] = diffuse[1] = diffuse[2] = 0.4f;
1446                 diffuse[3] = 1.0f;
1447                 //material[0] = material[1] = material[2] = 0.8f;
1448                 //material[3] = 1.0f;
1449
1450                 inverse_cam_dir[0] = m_Camera.vpn[0];
1451                 inverse_cam_dir[1] = m_Camera.vpn[1];
1452                 inverse_cam_dir[2] = m_Camera.vpn[2];
1453                 inverse_cam_dir[3] = 0;
1454
1455                 glLightfv( GL_LIGHT0, GL_POSITION, inverse_cam_dir );
1456
1457                 glLightfv( GL_LIGHT0, GL_AMBIENT, ambient );
1458                 glLightfv( GL_LIGHT0, GL_DIFFUSE, diffuse );
1459
1460                 glEnable( GL_LIGHT0 );
1461         }
1462
1463
1464         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;
1465         switch ( m_Camera.draw_mode )
1466         {
1467         case cd_wire:
1468                 break;
1469         case cd_solid:
1470                 globalstate |= RENDER_FILL
1471                                            | RENDER_LIGHTING
1472                                            | RENDER_SMOOTH
1473                                            | RENDER_SCALED;
1474                 break;
1475         case cd_texture:
1476                 globalstate |= RENDER_FILL
1477                                            | RENDER_LIGHTING
1478                                            | RENDER_TEXTURE
1479                                            | RENDER_SMOOTH
1480                                            | RENDER_SCALED;
1481                 break;
1482         case cd_lighting:
1483                 globalstate |= RENDER_FILL
1484                                            | RENDER_LIGHTING
1485                                            | RENDER_TEXTURE
1486                                            | RENDER_SMOOTH
1487                                            | RENDER_SCALED
1488                                            | RENDER_BUMP
1489                                            | RENDER_PROGRAM
1490                                            | RENDER_SCREEN;
1491                 break;
1492         default:
1493                 globalstate = 0;
1494                 break;
1495         }
1496
1497         if ( !g_xywindow_globals.m_bNoStipple ) {
1498                 globalstate |= RENDER_LINESTIPPLE | RENDER_POLYGONSTIPPLE;
1499         }
1500
1501         {
1502                 CamRenderer renderer( globalstate, m_state_select2, m_state_select1, m_view.getViewer() );
1503
1504                 Scene_Render( renderer, m_view );
1505
1506                 renderer.render( m_Camera.modelview, m_Camera.projection );
1507         }
1508
1509         // prepare for 2d stuff
1510         glColor4f( 1, 1, 1, 1 );
1511         glDisable( GL_BLEND );
1512         glMatrixMode( GL_PROJECTION );
1513         glLoadIdentity();
1514         glOrtho( 0, (float)m_Camera.width, 0, (float)m_Camera.height, -100, 100 );
1515         glScalef( 1, -1, 1 );
1516         glTranslatef( 0, -(float)m_Camera.height, 0 );
1517         glMatrixMode( GL_MODELVIEW );
1518         glLoadIdentity();
1519
1520         if ( GlobalOpenGL().GL_1_3() ) {
1521                 glClientActiveTexture( GL_TEXTURE0 );
1522                 glActiveTexture( GL_TEXTURE0 );
1523         }
1524
1525         glDisableClientState( GL_TEXTURE_COORD_ARRAY );
1526         glDisableClientState( GL_NORMAL_ARRAY );
1527         glDisableClientState( GL_COLOR_ARRAY );
1528
1529         glDisable( GL_TEXTURE_2D );
1530         glDisable( GL_LIGHTING );
1531         glDisable( GL_COLOR_MATERIAL );
1532         glDisable( GL_DEPTH_TEST );
1533         glColor3f( 1.f, 1.f, 1.f );
1534         glLineWidth( 1 );
1535
1536         // draw the crosshair
1537         if ( m_bFreeMove ) {
1538                 glBegin( GL_LINES );
1539                 glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f + 6 );
1540                 glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f + 2 );
1541                 glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f - 6 );
1542                 glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f - 2 );
1543                 glVertex2f( (float)m_Camera.width / 2.f + 6, (float)m_Camera.height / 2.f );
1544                 glVertex2f( (float)m_Camera.width / 2.f + 2, (float)m_Camera.height / 2.f );
1545                 glVertex2f( (float)m_Camera.width / 2.f - 6, (float)m_Camera.height / 2.f );
1546                 glVertex2f( (float)m_Camera.width / 2.f - 2, (float)m_Camera.height / 2.f );
1547                 glEnd();
1548         }
1549
1550         if ( g_camwindow_globals_private.m_showStats ) {
1551                 glRasterPos3f( 1.0f, static_cast<float>( m_Camera.height ) - GlobalOpenGL().m_font->getPixelDescent(), 0.0f );
1552                 extern const char* Renderer_GetStats();
1553                 GlobalOpenGL().drawString( Renderer_GetStats() );
1554
1555                 glRasterPos3f( 1.0f, static_cast<float>( m_Camera.height ) - GlobalOpenGL().m_font->getPixelDescent() - GlobalOpenGL().m_font->getPixelHeight(), 0.0f );
1556                 extern const char* Cull_GetStats();
1557                 GlobalOpenGL().drawString( Cull_GetStats() );
1558         }
1559
1560         // bind back to the default texture so that we don't have problems
1561         // elsewhere using/modifying texture maps between contexts
1562         glBindTexture( GL_TEXTURE_2D, 0 );
1563 }
1564
1565 void CamWnd::draw(){
1566         m_drawing = true;
1567
1568         //globalOutputStream() << "draw...\n";
1569         if ( glwidget_make_current( m_gl_widget ) != FALSE ) {
1570                 if ( Map_Valid( g_map ) && ScreenUpdates_Enabled() ) {
1571                         GlobalOpenGL_debugAssertNoErrors();
1572                         Cam_Draw();
1573                         GlobalOpenGL_debugAssertNoErrors();
1574                         //qglFinish();
1575
1576                         m_XORRectangle.set( rectangle_t() );
1577                 }
1578
1579                 glwidget_swap_buffers( m_gl_widget );
1580         }
1581
1582         m_drawing = false;
1583 }
1584
1585 void CamWnd::BenchMark(){
1586         double dStart = Sys_DoubleTime();
1587         for ( int i = 0 ; i < 100 ; i++ )
1588         {
1589                 Vector3 angles;
1590                 angles[CAMERA_ROLL] = 0;
1591                 angles[CAMERA_PITCH] = 0;
1592                 angles[CAMERA_YAW] = static_cast<float>( i * ( 360.0 / 100.0 ) );
1593                 Camera_setAngles( *this, angles );
1594         }
1595         double dEnd = Sys_DoubleTime();
1596         globalOutputStream() << FloatFormat( dEnd - dStart, 5, 2 ) << " seconds\n";
1597 }
1598
1599
1600 void fill_view_camera_menu( GtkMenu* menu ){
1601         create_check_menu_item_with_mnemonic( menu, "Camera View", "ToggleCamera" );
1602 }
1603
1604 void GlobalCamera_ResetAngles(){
1605         CamWnd& camwnd = *g_camwnd;
1606         Vector3 angles;
1607         angles[CAMERA_ROLL] = angles[CAMERA_PITCH] = 0;
1608         angles[CAMERA_YAW] = static_cast<float>( 22.5 * floor( ( Camera_getAngles( camwnd )[CAMERA_YAW] + 11 ) / 22.5 ) );
1609         Camera_setAngles( camwnd, angles );
1610 }
1611
1612 void Camera_ChangeFloorUp(){
1613         CamWnd& camwnd = *g_camwnd;
1614         camwnd.Cam_ChangeFloor( true );
1615 }
1616
1617 void Camera_ChangeFloorDown(){
1618         CamWnd& camwnd = *g_camwnd;
1619         camwnd.Cam_ChangeFloor( false );
1620 }
1621
1622 void Camera_CubeIn(){
1623         CamWnd& camwnd = *g_camwnd;
1624         g_camwindow_globals.m_nCubicScale--;
1625         if ( g_camwindow_globals.m_nCubicScale < 1 ) {
1626                 g_camwindow_globals.m_nCubicScale = 1;
1627         }
1628         Camera_updateProjection( camwnd.getCamera() );
1629         CamWnd_Update( camwnd );
1630         g_pParentWnd->SetGridStatus();
1631 }
1632
1633 void Camera_CubeOut(){
1634         CamWnd& camwnd = *g_camwnd;
1635         g_camwindow_globals.m_nCubicScale++;
1636         if ( g_camwindow_globals.m_nCubicScale > 23 ) {
1637                 g_camwindow_globals.m_nCubicScale = 23;
1638         }
1639         Camera_updateProjection( camwnd.getCamera() );
1640         CamWnd_Update( camwnd );
1641         g_pParentWnd->SetGridStatus();
1642 }
1643
1644 bool Camera_GetFarClip(){
1645         return g_camwindow_globals_private.m_bCubicClipping;
1646 }
1647
1648 BoolExportCaller g_getfarclip_caller( g_camwindow_globals_private.m_bCubicClipping );
1649 ToggleItem g_getfarclip_item( g_getfarclip_caller );
1650
1651 void Camera_SetFarClip( bool value ){
1652         CamWnd& camwnd = *g_camwnd;
1653         g_camwindow_globals_private.m_bCubicClipping = value;
1654         g_getfarclip_item.update();
1655         Camera_updateProjection( camwnd.getCamera() );
1656         CamWnd_Update( camwnd );
1657 }
1658
1659 void Camera_ToggleFarClip(){
1660         Camera_SetFarClip( !Camera_GetFarClip() );
1661 }
1662
1663
1664 void CamWnd_constructToolbar( GtkToolbar* toolbar ){
1665         toolbar_append_toggle_button( toolbar, "Cubic clip the camera view (\\)", "view_cubicclipping.bmp", "ToggleCubicClip" );
1666 }
1667
1668 void CamWnd_registerShortcuts(){
1669         toggle_add_accelerator( "ToggleCubicClip" );
1670
1671         if ( g_pGameDescription->mGameType == "doom3" ) {
1672                 command_connect_accelerator( "TogglePreview" );
1673         }
1674
1675         command_connect_accelerator( "CameraSpeedInc" );
1676         command_connect_accelerator( "CameraSpeedDec" );
1677 }
1678
1679
1680 void GlobalCamera_Benchmark(){
1681         CamWnd& camwnd = *g_camwnd;
1682         camwnd.BenchMark();
1683 }
1684
1685 void GlobalCamera_Update(){
1686         CamWnd& camwnd = *g_camwnd;
1687         CamWnd_Update( camwnd );
1688 }
1689
1690 camera_draw_mode CamWnd_GetMode(){
1691         return camera_t::draw_mode;
1692 }
1693 void CamWnd_SetMode( camera_draw_mode mode ){
1694         ShaderCache_setBumpEnabled( mode == cd_lighting );
1695         camera_t::draw_mode = mode;
1696         if ( g_camwnd != 0 ) {
1697                 CamWnd_Update( *g_camwnd );
1698         }
1699 }
1700
1701 void CamWnd_TogglePreview( void ){
1702         // gametype must be doom3 for this function to work
1703         // if the gametype is not doom3 something is wrong with the
1704         // global command list or somebody else calls this function.
1705         ASSERT_MESSAGE( g_pGameDescription->mGameType == "doom3", "CamWnd_TogglePreview called although mGameType is not doom3 compatible" );
1706
1707         // switch between textured and lighting mode
1708         CamWnd_SetMode( ( CamWnd_GetMode() == cd_lighting ) ? cd_texture : cd_lighting );
1709 }
1710
1711
1712 CameraModel* g_camera_model = 0;
1713
1714 void CamWnd_LookThroughCamera( CamWnd& camwnd ){
1715         if ( g_camera_model != 0 ) {
1716                 CamWnd_Add_Handlers_Move( camwnd );
1717                 g_camera_model->setCameraView( 0, Callback() );
1718                 g_camera_model = 0;
1719                 Camera_updateModelview( camwnd.getCamera() );
1720                 Camera_updateProjection( camwnd.getCamera() );
1721                 CamWnd_Update( camwnd );
1722         }
1723 }
1724
1725 inline CameraModel* Instance_getCameraModel( scene::Instance& instance ){
1726         return InstanceTypeCast<CameraModel>::cast( instance );
1727 }
1728
1729 void CamWnd_LookThroughSelected( CamWnd& camwnd ){
1730         if ( g_camera_model != 0 ) {
1731                 CamWnd_LookThroughCamera( camwnd );
1732         }
1733
1734         if ( GlobalSelectionSystem().countSelected() != 0 ) {
1735                 scene::Instance& instance = GlobalSelectionSystem().ultimateSelected();
1736                 CameraModel* cameraModel = Instance_getCameraModel( instance );
1737                 if ( cameraModel != 0 ) {
1738                         CamWnd_Remove_Handlers_Move( camwnd );
1739                         g_camera_model = cameraModel;
1740                         g_camera_model->setCameraView( &camwnd.getCameraView(), ReferenceCaller<CamWnd, CamWnd_LookThroughCamera>( camwnd ) );
1741                 }
1742         }
1743 }
1744
1745 void GlobalCamera_LookThroughSelected(){
1746         CamWnd_LookThroughSelected( *g_camwnd );
1747 }
1748
1749 void GlobalCamera_LookThroughCamera(){
1750         CamWnd_LookThroughCamera( *g_camwnd );
1751 }
1752
1753
1754 void RenderModeImport( int value ){
1755         switch ( value )
1756         {
1757         case 0:
1758                 CamWnd_SetMode( cd_wire );
1759                 break;
1760         case 1:
1761                 CamWnd_SetMode( cd_solid );
1762                 break;
1763         case 2:
1764                 CamWnd_SetMode( cd_texture );
1765                 break;
1766         case 3:
1767                 CamWnd_SetMode( cd_lighting );
1768                 break;
1769         default:
1770                 CamWnd_SetMode( cd_texture );
1771         }
1772 }
1773 typedef FreeCaller1<int, RenderModeImport> RenderModeImportCaller;
1774
1775 void RenderModeExport( const IntImportCallback& importer ){
1776         switch ( CamWnd_GetMode() )
1777         {
1778         case cd_wire:
1779                 importer( 0 );
1780                 break;
1781         case cd_solid:
1782                 importer( 1 );
1783                 break;
1784         case cd_texture:
1785                 importer( 2 );
1786                 break;
1787         case cd_lighting:
1788                 importer( 3 );
1789                 break;
1790         }
1791 }
1792 typedef FreeCaller1<const IntImportCallback&, RenderModeExport> RenderModeExportCaller;
1793
1794 void Camera_constructPreferences( PreferencesPage& page ){
1795         page.appendSlider( "Movement Speed", g_camwindow_globals_private.m_nMoveSpeed, TRUE, 0, 0, 100, MIN_CAM_SPEED, MAX_CAM_SPEED, 1, 10 );
1796         page.appendCheckBox( "", "Link strafe speed to movement speed", g_camwindow_globals_private.m_bCamLinkSpeed );
1797         page.appendSlider( "Rotation Speed", g_camwindow_globals_private.m_nAngleSpeed, TRUE, 0, 0, 3, 1, 180, 1, 10 );
1798         page.appendCheckBox( "", "Invert mouse vertical axis", g_camwindow_globals_private.m_bCamInverseMouse );
1799         page.appendCheckBox(
1800                 "", "Discrete movement",
1801                 FreeCaller1<bool, CamWnd_Move_Discrete_Import>(),
1802                 BoolExportCaller( g_camwindow_globals_private.m_bCamDiscrete )
1803                 );
1804         page.appendCheckBox(
1805                 "", "Enable far-clip plane",
1806                 FreeCaller1<bool, Camera_SetFarClip>(),
1807                 BoolExportCaller( g_camwindow_globals_private.m_bCubicClipping )
1808                 );
1809
1810         if ( g_pGameDescription->mGameType == "doom3" ) {
1811                 const char* render_mode[] = { "Wireframe", "Flatshade", "Textured", "Lighting" };
1812
1813                 page.appendCombo(
1814                         "Render Mode",
1815                         STRING_ARRAY_RANGE( render_mode ),
1816                         IntImportCallback( RenderModeImportCaller() ),
1817                         IntExportCallback( RenderModeExportCaller() )
1818                         );
1819         }
1820         else
1821         {
1822                 const char* render_mode[] = { "Wireframe", "Flatshade", "Textured" };
1823
1824                 page.appendCombo(
1825                         "Render Mode",
1826                         STRING_ARRAY_RANGE( render_mode ),
1827                         IntImportCallback( RenderModeImportCaller() ),
1828                         IntExportCallback( RenderModeExportCaller() )
1829                         );
1830         }
1831
1832         const char* strafe_mode[] = { "Both", "Forward", "Up" };
1833
1834         page.appendCombo(
1835                 "Strafe Mode",
1836                 g_camwindow_globals_private.m_nStrafeMode,
1837                 STRING_ARRAY_RANGE( strafe_mode )
1838                 );
1839 }
1840 void Camera_constructPage( PreferenceGroup& group ){
1841         PreferencesPage page( group.createPage( "Camera", "Camera View Preferences" ) );
1842         Camera_constructPreferences( page );
1843 }
1844 void Camera_registerPreferencesPage(){
1845         PreferencesDialog_addSettingsPage( FreeCaller1<PreferenceGroup&, Camera_constructPage>() );
1846 }
1847
1848 #include "preferencesystem.h"
1849 #include "stringio.h"
1850 #include "dialog.h"
1851
1852 typedef FreeCaller1<bool, CamWnd_Move_Discrete_Import> CamWndMoveDiscreteImportCaller;
1853
1854 void CameraSpeed_increase(){
1855         if ( g_camwindow_globals_private.m_nMoveSpeed <= ( MAX_CAM_SPEED - CAM_SPEED_STEP - 10 ) ) {
1856                 g_camwindow_globals_private.m_nMoveSpeed += CAM_SPEED_STEP;
1857         }
1858         else {
1859                 g_camwindow_globals_private.m_nMoveSpeed = MAX_CAM_SPEED - 10;
1860         }
1861 }
1862
1863 void CameraSpeed_decrease(){
1864         if ( g_camwindow_globals_private.m_nMoveSpeed >= ( MIN_CAM_SPEED + CAM_SPEED_STEP ) ) {
1865                 g_camwindow_globals_private.m_nMoveSpeed -= CAM_SPEED_STEP;
1866         }
1867         else {
1868                 g_camwindow_globals_private.m_nMoveSpeed = MIN_CAM_SPEED;
1869         }
1870 }
1871
1872 /// \brief Initialisation for things that have the same lifespan as this module.
1873 void CamWnd_Construct(){
1874         GlobalCommands_insert( "CenterView", FreeCaller<GlobalCamera_ResetAngles>(), Accelerator( GDK_End ) );
1875
1876         GlobalToggles_insert( "ToggleCubicClip", FreeCaller<Camera_ToggleFarClip>(), ToggleItem::AddCallbackCaller( g_getfarclip_item ), Accelerator( '\\', (GdkModifierType)GDK_CONTROL_MASK ) );
1877         GlobalCommands_insert( "CubicClipZoomIn", FreeCaller<Camera_CubeIn>(), Accelerator( '[', (GdkModifierType)GDK_CONTROL_MASK ) );
1878         GlobalCommands_insert( "CubicClipZoomOut", FreeCaller<Camera_CubeOut>(), Accelerator( ']', (GdkModifierType)GDK_CONTROL_MASK ) );
1879
1880         GlobalCommands_insert( "UpFloor", FreeCaller<Camera_ChangeFloorUp>(), Accelerator( GDK_Prior ) );
1881         GlobalCommands_insert( "DownFloor", FreeCaller<Camera_ChangeFloorDown>(), Accelerator( GDK_Next ) );
1882
1883         GlobalToggles_insert( "ToggleCamera", ToggleShown::ToggleCaller( g_camera_shown ), ToggleItem::AddCallbackCaller( g_camera_shown.m_item ), Accelerator( 'C', (GdkModifierType)( GDK_SHIFT_MASK | GDK_CONTROL_MASK ) ) );
1884         GlobalCommands_insert( "LookThroughSelected", FreeCaller<GlobalCamera_LookThroughSelected>() );
1885         GlobalCommands_insert( "LookThroughCamera", FreeCaller<GlobalCamera_LookThroughCamera>() );
1886
1887         if ( g_pGameDescription->mGameType == "doom3" ) {
1888                 GlobalCommands_insert( "TogglePreview", FreeCaller<CamWnd_TogglePreview>(), Accelerator( GDK_F3 ) );
1889         }
1890
1891         GlobalCommands_insert( "CameraSpeedInc", FreeCaller<CameraSpeed_increase>(), Accelerator( GDK_KP_Add, (GdkModifierType)GDK_SHIFT_MASK ) );
1892         GlobalCommands_insert( "CameraSpeedDec", FreeCaller<CameraSpeed_decrease>(), Accelerator( GDK_KP_Subtract, (GdkModifierType)GDK_SHIFT_MASK ) );
1893
1894         GlobalShortcuts_insert( "CameraForward", Accelerator( GDK_Up ) );
1895         GlobalShortcuts_insert( "CameraBack", Accelerator( GDK_Down ) );
1896         GlobalShortcuts_insert( "CameraLeft", Accelerator( GDK_Left ) );
1897         GlobalShortcuts_insert( "CameraRight", Accelerator( GDK_Right ) );
1898         GlobalShortcuts_insert( "CameraStrafeRight", Accelerator( GDK_period ) );
1899         GlobalShortcuts_insert( "CameraStrafeLeft", Accelerator( GDK_comma ) );
1900
1901         GlobalShortcuts_insert( "CameraUp", Accelerator( 'D' ) );
1902         GlobalShortcuts_insert( "CameraDown", Accelerator( 'C' ) );
1903         GlobalShortcuts_insert( "CameraAngleUp", Accelerator( 'A' ) );
1904         GlobalShortcuts_insert( "CameraAngleDown", Accelerator( 'Z' ) );
1905
1906         GlobalShortcuts_insert( "CameraFreeMoveForward", Accelerator( GDK_Up ) );
1907         GlobalShortcuts_insert( "CameraFreeMoveBack", Accelerator( GDK_Down ) );
1908         GlobalShortcuts_insert( "CameraFreeMoveLeft", Accelerator( GDK_Left ) );
1909         GlobalShortcuts_insert( "CameraFreeMoveRight", Accelerator( GDK_Right ) );
1910
1911         GlobalToggles_insert( "ShowStats", ShowStatsToggleCaller(), ToggleItem::AddCallbackCaller( g_show_stats ) );
1912
1913         GlobalPreferenceSystem().registerPreference( "ShowStats", BoolImportStringCaller( g_camwindow_globals_private.m_showStats ), BoolExportStringCaller( g_camwindow_globals_private.m_showStats ) );
1914         GlobalPreferenceSystem().registerPreference( "MoveSpeed", IntImportStringCaller( g_camwindow_globals_private.m_nMoveSpeed ), IntExportStringCaller( g_camwindow_globals_private.m_nMoveSpeed ) );
1915         GlobalPreferenceSystem().registerPreference( "CamLinkSpeed", BoolImportStringCaller( g_camwindow_globals_private.m_bCamLinkSpeed ), BoolExportStringCaller( g_camwindow_globals_private.m_bCamLinkSpeed ) );
1916         GlobalPreferenceSystem().registerPreference( "AngleSpeed", IntImportStringCaller( g_camwindow_globals_private.m_nAngleSpeed ), IntExportStringCaller( g_camwindow_globals_private.m_nAngleSpeed ) );
1917         GlobalPreferenceSystem().registerPreference( "CamInverseMouse", BoolImportStringCaller( g_camwindow_globals_private.m_bCamInverseMouse ), BoolExportStringCaller( g_camwindow_globals_private.m_bCamInverseMouse ) );
1918         GlobalPreferenceSystem().registerPreference( "CamDiscrete", makeBoolStringImportCallback( CamWndMoveDiscreteImportCaller() ), BoolExportStringCaller( g_camwindow_globals_private.m_bCamDiscrete ) );
1919         GlobalPreferenceSystem().registerPreference( "CubicClipping", BoolImportStringCaller( g_camwindow_globals_private.m_bCubicClipping ), BoolExportStringCaller( g_camwindow_globals_private.m_bCubicClipping ) );
1920         GlobalPreferenceSystem().registerPreference( "CubicScale", IntImportStringCaller( g_camwindow_globals.m_nCubicScale ), IntExportStringCaller( g_camwindow_globals.m_nCubicScale ) );
1921         GlobalPreferenceSystem().registerPreference( "SI_Colors4", Vector3ImportStringCaller( g_camwindow_globals.color_cameraback ), Vector3ExportStringCaller( g_camwindow_globals.color_cameraback ) );
1922         GlobalPreferenceSystem().registerPreference( "SI_Colors12", Vector3ImportStringCaller( g_camwindow_globals.color_selbrushes3d ), Vector3ExportStringCaller( g_camwindow_globals.color_selbrushes3d ) );
1923         GlobalPreferenceSystem().registerPreference( "CameraRenderMode", makeIntStringImportCallback( RenderModeImportCaller() ), makeIntStringExportCallback( RenderModeExportCaller() ) );
1924         GlobalPreferenceSystem().registerPreference( "StrafeMode", IntImportStringCaller( g_camwindow_globals_private.m_nStrafeMode ), IntExportStringCaller( g_camwindow_globals_private.m_nStrafeMode ) );
1925
1926         CamWnd_constructStatic();
1927
1928         Camera_registerPreferencesPage();
1929 }
1930 void CamWnd_Destroy(){
1931         CamWnd_destroyStatic();
1932 }