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 <gdk/gdkkeysyms.h>
  29 #include "camwindow.h"
  30
  31 #include "debugging/debugging.h"
  32
  33 #include "iscenegraph.h"
  34 #include "irender.h"
  35 #include "igl.h"
  36 #include "icamera.h"
  37 #include "cullable.h"
  38 #include "renderable.h"
  39 #include "preferencesystem.h"
  40
  41 #include "signal/signal.h"
  42 #include "container/array.h"
  43 #include "scenelib.h"
  44 #include "render.h"
  45 #include "cmdlib.h"
  46 #include "math/frustum.h"
  47
  48 #include "gtkutil/widget.h"
  49 #include "gtkutil/button.h"
  50 #include "gtkutil/toolbar.h"
  51 #include "gtkutil/glwidget.h"
  52 #include "gtkutil/xorrectangle.h"
  53 #include "gtkmisc.h"
  54 #include "selection.h"
  55 #include "mainframe.h"
  56 #include "preferences.h"
  57 #include "commands.h"
  58 #include "xywindow.h"
  59 #include "windowobservers.h"
  60 #include "renderstate.h"
  61
  62 #include "timer.h"
  63
  64 Signal0 g_cameraMoved_callbacks;
  65
  66 void AddCameraMovedCallback( const SignalHandler& handler ){
  67         g_cameraMoved_callbacks.connectLast( handler );
  68 }
  69
  70 void CameraMovedNotify(){
  71         g_cameraMoved_callbacks();
  72 }
  73
  74
  75 struct camwindow_globals_private_t
  76 {
  77         int m_nMoveSpeed;
  78         bool m_bCamLinkSpeed;
  79         int m_nAngleSpeed;
  80         bool m_bCamInverseMouse;
  81         bool m_bCamDiscrete;
  82         bool m_bCubicClipping;
  83         bool m_showStats;
  84         int m_nStrafeMode;
  85
  86         camwindow_globals_private_t() :
  87                 m_nMoveSpeed( 100 ),
  88                 m_bCamLinkSpeed( true ),
  89                 m_nAngleSpeed( 3 ),
  90                 m_bCamInverseMouse( false ),
  91                 m_bCamDiscrete( true ),
  92                 m_bCubicClipping( true ),
  93                 m_showStats( true ),
  94                 m_nStrafeMode( 0 ){
  95         }
  96
  97 };
  98
  99 camwindow_globals_private_t g_camwindow_globals_private;
 100
 101
 102 const Matrix4 g_opengl2radiant(
 103         0, 0,-1, 0,
 104         -1, 0, 0, 0,
 105         0, 1, 0, 0,
 106         0, 0, 0, 1
 107         );
 108
 109 const Matrix4 g_radiant2opengl(
 110         0,-1, 0, 0,
 111         0, 0, 1, 0,
 112         -1, 0, 0, 0,
 113         0, 0, 0, 1
 114         );
 115
 116 struct camera_t;
 117 void Camera_mouseMove( camera_t& camera, int x, int y );
 118
 119 enum camera_draw_mode
 120 {
 121         cd_wire,
 122         cd_solid,
 123         cd_texture,
 124         cd_lighting
 125 };
 126
 127 struct camera_t
 128 {
 129         int width, height;
 130
 131         bool timing;
 132
 133         Vector3 origin;
 134         Vector3 angles;
 135
 136         Vector3 color; // background
 137
 138         Vector3 forward, right; // move matrix (TTimo: used to have up but it was not updated)
 139         Vector3 vup, vpn, vright; // view matrix (taken from the modelview matrix)
 140
 141         Matrix4 projection;
 142         Matrix4 modelview;
 143
 144         bool m_strafe; // true when in strafemode toggled by the ctrl-key
 145         bool m_strafe_forward; // true when in strafemode by ctrl-key and shift is pressed for forward strafing
 146
 147         unsigned int movementflags; // movement flags
 148         Timer m_keycontrol_timer;
 149         guint m_keymove_handler;
 150
 151
 152         float fieldOfView;
 153
 154         DeferredMotionDelta m_mouseMove;
 155
 156         static void motionDelta( int x, int y, void* data ){
 157                 Camera_mouseMove( *reinterpret_cast<camera_t*>( data ), x, y );
 158         }
 159
 160         View* m_view;
 161         Callback m_update;
 162
 163         static camera_draw_mode draw_mode;
 164
 165         camera_t( View* view, const Callback& update )
 166                 : width( 0 ),
 167                 height( 0 ),
 168                 timing( false ),
 169                 origin( 0, 0, 0 ),
 170                 angles( 0, 0, 0 ),
 171                 color( 0, 0, 0 ),
 172                 movementflags( 0 ),
 173                 m_keymove_handler( 0 ),
 174                 fieldOfView( 90.0f ),
 175                 m_mouseMove( motionDelta, this ),
 176                 m_view( view ),
 177                 m_update( update ){
 178         }
 179 };
 180
 181 camera_draw_mode camera_t::draw_mode = cd_texture;
 182
 183 inline Matrix4 projection_for_camera( float near_z, float far_z, float fieldOfView, int width, int height ){
 184         const float half_width = static_cast<float>( near_z * tan( degrees_to_radians( fieldOfView * 0.5 ) ) );
 185         const float half_height = half_width * ( static_cast<float>( height ) / static_cast<float>( width ) );
 186
 187         return matrix4_frustum(
 188                            -half_width,
 189                            half_width,
 190                            -half_height,
 191                            half_height,
 192                            near_z,
 193                            far_z
 194                            );
 195 }
 196
 197 float Camera_getFarClipPlane( camera_t& camera ){
 198         return ( g_camwindow_globals_private.m_bCubicClipping ) ? pow( 2.0, ( g_camwindow_globals.m_nCubicScale + 7 ) / 2.0 ) : 32768.0f;
 199 }
 200
 201 void Camera_updateProjection( camera_t& camera ){
 202         float farClip = Camera_getFarClipPlane( camera );
 203         camera.projection = projection_for_camera( farClip / 4096.0f, farClip, camera.fieldOfView, camera.width, camera.height );
 204
 205         camera.m_view->Construct( camera.projection, camera.modelview, camera.width, camera.height );
 206 }
 207
 208 void Camera_updateVectors( camera_t& camera ){
 209         for ( int i = 0 ; i < 3 ; i++ )
 210         {
 211                 camera.vright[i] = camera.modelview[( i << 2 ) + 0];
 212                 camera.vup[i] = camera.modelview[( i << 2 ) + 1];
 213                 camera.vpn[i] = camera.modelview[( i << 2 ) + 2];
 214         }
 215 }
 216
 217 void Camera_updateModelview( camera_t& camera ){
 218         camera.modelview = g_matrix4_identity;
 219
 220         // roll, pitch, yaw
 221         Vector3 radiant_eulerXYZ( 0, -camera.angles[CAMERA_PITCH], camera.angles[CAMERA_YAW] );
 222
 223         matrix4_translate_by_vec3( camera.modelview, camera.origin );
 224         matrix4_rotate_by_euler_xyz_degrees( camera.modelview, radiant_eulerXYZ );
 225         matrix4_multiply_by_matrix4( camera.modelview, g_radiant2opengl );
 226         matrix4_affine_invert( camera.modelview );
 227
 228         Camera_updateVectors( camera );
 229
 230         camera.m_view->Construct( camera.projection, camera.modelview, camera.width, camera.height );
 231 }
 232
 233
 234 void Camera_Move_updateAxes( camera_t& camera ){
 235         double ya = degrees_to_radians( camera.angles[CAMERA_YAW] );
 236
 237         // the movement matrix is kept 2d
 238         camera.forward[0] = static_cast<float>( cos( ya ) );
 239         camera.forward[1] = static_cast<float>( sin( ya ) );
 240         camera.forward[2] = 0;
 241         camera.right[0] = camera.forward[1];
 242         camera.right[1] = -camera.forward[0];
 243 }
 244
 245 void Camera_Freemove_updateAxes( camera_t& camera ){
 246         camera.right = camera.vright;
 247         camera.forward = vector3_negated( camera.vpn );
 248 }
 249
 250 const Vector3& Camera_getOrigin( camera_t& camera ){
 251         return camera.origin;
 252 }
 253
 254 void Camera_setOrigin( camera_t& camera, const Vector3& origin ){
 255         camera.origin = origin;
 256         Camera_updateModelview( camera );
 257         camera.m_update();
 258         CameraMovedNotify();
 259 }
 260
 261 const Vector3& Camera_getAngles( camera_t& camera ){
 262         return camera.angles;
 263 }
 264
 265 void Camera_setAngles( camera_t& camera, const Vector3& angles ){
 266         camera.angles = angles;
 267         Camera_updateModelview( camera );
 268         camera.m_update();
 269         CameraMovedNotify();
 270 }
 271
 272
 273 void Camera_FreeMove( camera_t& camera, int dx, int dy ){
 274         // free strafe mode, toggled by the ctrl key with optional shift for forward movement
 275         if ( camera.m_strafe ) {
 276                 float strafespeed = 0.65f;
 277
 278                 if ( g_camwindow_globals_private.m_bCamLinkSpeed ) {
 279                         strafespeed = (float)g_camwindow_globals_private.m_nMoveSpeed / 100;
 280                 }
 281
 282                 camera.origin -= camera.vright * strafespeed * dx;
 283                 if ( camera.m_strafe_forward ) {
 284                         camera.origin += camera.vpn * strafespeed * dy;
 285                 }
 286                 else{
 287                         camera.origin += camera.vup * strafespeed * dy;
 288                 }
 289         }
 290         else // free rotation
 291         {
 292                 const float dtime = 0.1f;
 293
 294                 if ( g_camwindow_globals_private.m_bCamInverseMouse ) {
 295                         camera.angles[CAMERA_PITCH] -= dy * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 296                 }
 297                 else{
 298                         camera.angles[CAMERA_PITCH] += dy * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 299                 }
 300
 301                 camera.angles[CAMERA_YAW] += dx * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 302
 303                 if ( camera.angles[CAMERA_PITCH] > 90 ) {
 304                         camera.angles[CAMERA_PITCH] = 90;
 305                 }
 306                 else if ( camera.angles[CAMERA_PITCH] < -90 ) {
 307                         camera.angles[CAMERA_PITCH] = -90;
 308                 }
 309
 310                 if ( camera.angles[CAMERA_YAW] >= 360 ) {
 311                         camera.angles[CAMERA_YAW] -= 360;
 312                 }
 313                 else if ( camera.angles[CAMERA_YAW] <= 0 ) {
 314                         camera.angles[CAMERA_YAW] += 360;
 315                 }
 316         }
 317
 318         Camera_updateModelview( camera );
 319         Camera_Freemove_updateAxes( camera );
 320 }
 321
 322 void Cam_MouseControl( camera_t& camera, int x, int y ){
 323         float xf, yf;
 324
 325         xf = (float)( x - camera.width / 2 ) / ( camera.width / 2 );
 326         yf = (float)( y - camera.height / 2 ) / ( camera.height / 2 );
 327
 328         //int xl = camera.width / 3;
 329         //int xh = xl * 2;
 330         //int yl = camera.height / 3;
 331         //int yh = yl * 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, &Camera_MoveForward_KeyDown> FreeMoveCameraMoveForwardKeyDownCaller;
 522 typedef ReferenceCaller<camera_t, &Camera_MoveForward_KeyUp> FreeMoveCameraMoveForwardKeyUpCaller;
 523 typedef ReferenceCaller<camera_t, &Camera_MoveBack_KeyDown> FreeMoveCameraMoveBackKeyDownCaller;
 524 typedef ReferenceCaller<camera_t, &Camera_MoveBack_KeyUp> FreeMoveCameraMoveBackKeyUpCaller;
 525 typedef ReferenceCaller<camera_t, &Camera_MoveLeft_KeyDown> FreeMoveCameraMoveLeftKeyDownCaller;
 526 typedef ReferenceCaller<camera_t, &Camera_MoveLeft_KeyUp> FreeMoveCameraMoveLeftKeyUpCaller;
 527 typedef ReferenceCaller<camera_t, &Camera_MoveRight_KeyDown> FreeMoveCameraMoveRightKeyDownCaller;
 528 typedef ReferenceCaller<camera_t, &Camera_MoveRight_KeyUp> FreeMoveCameraMoveRightKeyUpCaller;
 529 typedef ReferenceCaller<camera_t, &Camera_MoveUp_KeyDown> FreeMoveCameraMoveUpKeyDownCaller;
 530 typedef ReferenceCaller<camera_t, &Camera_MoveUp_KeyUp> FreeMoveCameraMoveUpKeyUpCaller;
 531 typedef ReferenceCaller<camera_t, &Camera_MoveDown_KeyDown> FreeMoveCameraMoveDownKeyDownCaller;
 532 typedef ReferenceCaller<camera_t, &Camera_MoveDown_KeyUp> FreeMoveCameraMoveDownKeyUpCaller;
 533
 534
 535 #define SPEED_MOVE 32
 536 #define SPEED_TURN 22.5
 537 #define MIN_CAM_SPEED 10
 538 #define MAX_CAM_SPEED 610
 539 #define CAM_SPEED_STEP 50
 540
 541 void Camera_MoveForward_Discrete( camera_t& camera ){
 542         Camera_Move_updateAxes( camera );
 543         Camera_setOrigin( camera, vector3_added( Camera_getOrigin( camera ), vector3_scaled( camera.forward, SPEED_MOVE ) ) );
 544 }
 545 void Camera_MoveBack_Discrete( camera_t& camera ){
 546         Camera_Move_updateAxes( camera );
 547         Camera_setOrigin( camera, vector3_added( Camera_getOrigin( camera ), vector3_scaled( camera.forward, -SPEED_MOVE ) ) );
 548 }
 549
 550 void Camera_MoveUp_Discrete( camera_t& camera ){
 551         Vector3 origin( Camera_getOrigin( camera ) );
 552         origin[2] += SPEED_MOVE;
 553         Camera_setOrigin( camera, origin );
 554 }
 555 void Camera_MoveDown_Discrete( camera_t& camera ){
 556         Vector3 origin( Camera_getOrigin( camera ) );
 557         origin[2] -= SPEED_MOVE;
 558         Camera_setOrigin( camera, origin );
 559 }
 560
 561 void Camera_MoveLeft_Discrete( camera_t& camera ){
 562         Camera_Move_updateAxes( camera );
 563         Camera_setOrigin( camera, vector3_added( Camera_getOrigin( camera ), vector3_scaled( camera.right, -SPEED_MOVE ) ) );
 564 }
 565 void Camera_MoveRight_Discrete( camera_t& camera ){
 566         Camera_Move_updateAxes( camera );
 567         Camera_setOrigin( camera, vector3_added( Camera_getOrigin( camera ), vector3_scaled( camera.right, SPEED_MOVE ) ) );
 568 }
 569
 570 void Camera_RotateLeft_Discrete( camera_t& camera ){
 571         Vector3 angles( Camera_getAngles( camera ) );
 572         angles[CAMERA_YAW] += SPEED_TURN;
 573         Camera_setAngles( camera, angles );
 574 }
 575 void Camera_RotateRight_Discrete( camera_t& camera ){
 576         Vector3 angles( Camera_getAngles( camera ) );
 577         angles[CAMERA_YAW] -= SPEED_TURN;
 578         Camera_setAngles( camera, angles );
 579 }
 580
 581 void Camera_PitchUp_Discrete( camera_t& camera ){
 582         Vector3 angles( Camera_getAngles( camera ) );
 583         angles[CAMERA_PITCH] += SPEED_TURN;
 584         if ( angles[CAMERA_PITCH] > 90 ) {
 585                 angles[CAMERA_PITCH] = 90;
 586         }
 587         Camera_setAngles( camera, angles );
 588 }
 589 void Camera_PitchDown_Discrete( camera_t& camera ){
 590         Vector3 angles( Camera_getAngles( camera ) );
 591         angles[CAMERA_PITCH] -= SPEED_TURN;
 592         if ( angles[CAMERA_PITCH] < -90 ) {
 593                 angles[CAMERA_PITCH] = -90;
 594         }
 595         Camera_setAngles( camera, angles );
 596 }
 597
 598
 599 class RadiantCameraView : public CameraView
 600 {
 601 camera_t& m_camera;
 602 View* m_view;
 603 Callback m_update;
 604 public:
 605 RadiantCameraView( camera_t& camera, View* view, const Callback& update ) : m_camera( camera ), m_view( view ), m_update( update ){
 606 }
 607 void update(){
 608         m_view->Construct( m_camera.projection, m_camera.modelview, m_camera.width, m_camera.height );
 609         m_update();
 610 }
 611 void setModelview( const Matrix4& modelview ){
 612         m_camera.modelview = modelview;
 613         matrix4_multiply_by_matrix4( m_camera.modelview, g_radiant2opengl );
 614         matrix4_affine_invert( m_camera.modelview );
 615         Camera_updateVectors( m_camera );
 616         update();
 617 }
 618 void setFieldOfView( float fieldOfView ){
 619         float farClip = Camera_getFarClipPlane( m_camera );
 620         m_camera.projection = projection_for_camera( farClip / 4096.0f, farClip, fieldOfView, m_camera.width, m_camera.height );
 621         update();
 622 }
 623 };
 624
 625
 626 void Camera_motionDelta( int x, int y, unsigned int state, void* data ){
 627         camera_t* cam = reinterpret_cast<camera_t*>( data );
 628
 629         cam->m_mouseMove.motion_delta( x, y, state );
 630
 631         switch ( g_camwindow_globals_private.m_nStrafeMode )
 632         {
 633         case 0:
 634                 cam->m_strafe = ( state & GDK_CONTROL_MASK ) != 0;
 635                 if ( cam->m_strafe ) {
 636                         cam->m_strafe_forward = ( state & GDK_SHIFT_MASK ) != 0;
 637                 }
 638                 else{
 639                         cam->m_strafe_forward = false;
 640                 }
 641                 break;
 642         case 1:
 643                 cam->m_strafe = ( state & GDK_CONTROL_MASK ) != 0 && ( state & GDK_SHIFT_MASK ) == 0;
 644                 cam->m_strafe_forward = false;
 645                 break;
 646         case 2:
 647                 cam->m_strafe = ( state & GDK_CONTROL_MASK ) != 0 && ( state & GDK_SHIFT_MASK ) == 0;
 648                 cam->m_strafe_forward = cam->m_strafe;
 649                 break;
 650         }
 651 }
 652
 653 class CamWnd
 654 {
 655 View m_view;
 656 camera_t m_Camera;
 657 RadiantCameraView m_cameraview;
 658 #if 0
 659 int m_PositionDragCursorX;
 660 int m_PositionDragCursorY;
 661 #endif
 662
 663 guint m_freemove_handle_focusout;
 664
 665 static Shader* m_state_select1;
 666 static Shader* m_state_select2;
 667
 668 FreezePointer m_freezePointer;
 669
 670 public:
 671 ui::Widget m_gl_widget;
 672 ui::Window m_parent;
 673
 674 SelectionSystemWindowObserver* m_window_observer;
 675 XORRectangle m_XORRectangle;
 676
 677 DeferredDraw m_deferredDraw;
 678 DeferredMotion m_deferred_motion;
 679
 680 guint m_selection_button_press_handler;
 681 guint m_selection_button_release_handler;
 682 guint m_selection_motion_handler;
 683
 684 guint m_freelook_button_press_handler;
 685
 686 guint m_sizeHandler;
 687 guint m_exposeHandler;
 688
 689 CamWnd();
 690 ~CamWnd();
 691
 692 bool m_drawing;
 693 void queue_draw(){
 694         //ASSERT_MESSAGE(!m_drawing, "CamWnd::queue_draw(): called while draw is already in progress");
 695         if ( m_drawing ) {
 696                 return;
 697         }
 698         //globalOutputStream() << "queue... ";
 699         m_deferredDraw.draw();
 700 }
 701 void draw();
 702
 703 static void captureStates(){
 704         m_state_select1 = GlobalShaderCache().capture( "$CAM_HIGHLIGHT" );
 705         m_state_select2 = GlobalShaderCache().capture( "$CAM_OVERLAY" );
 706 }
 707 static void releaseStates(){
 708         GlobalShaderCache().release( "$CAM_HIGHLIGHT" );
 709         GlobalShaderCache().release( "$CAM_OVERLAY" );
 710 }
 711
 712 camera_t& getCamera(){
 713         return m_Camera;
 714 };
 715
 716 void BenchMark();
 717 void Cam_ChangeFloor( bool up );
 718
 719 void DisableFreeMove();
 720 void EnableFreeMove();
 721 bool m_bFreeMove;
 722
 723 CameraView& getCameraView(){
 724         return m_cameraview;
 725 }
 726
 727 private:
 728 void Cam_Draw();
 729 };
 730
 731 typedef MemberCaller<CamWnd, &CamWnd::queue_draw> CamWndQueueDraw;
 732
 733 Shader* CamWnd::m_state_select1 = 0;
 734 Shader* CamWnd::m_state_select2 = 0;
 735
 736 CamWnd* NewCamWnd(){
 737         return new CamWnd;
 738 }
 739 void DeleteCamWnd( CamWnd* camwnd ){
 740         delete camwnd;
 741 }
 742
 743 void CamWnd_constructStatic(){
 744         CamWnd::captureStates();
 745 }
 746
 747 void CamWnd_destroyStatic(){
 748         CamWnd::releaseStates();
 749 }
 750
 751 static CamWnd* g_camwnd = 0;
 752
 753 void GlobalCamera_setCamWnd( CamWnd& camwnd ){
 754         g_camwnd = &camwnd;
 755 }
 756
 757
 758 ui::Widget CamWnd_getWidget( CamWnd& camwnd ){
 759         return camwnd.m_gl_widget;
 760 }
 761
 762 ui::Window CamWnd_getParent( CamWnd& camwnd ){
 763         return camwnd.m_parent;
 764 }
 765
 766 ToggleShown g_camera_shown( true );
 767
 768 void CamWnd_setParent( CamWnd& camwnd, ui::Window parent ){
 769         camwnd.m_parent = parent;
 770         g_camera_shown.connect( GTK_WIDGET( camwnd.m_parent ) );
 771 }
 772
 773 void CamWnd_Update( CamWnd& camwnd ){
 774         camwnd.queue_draw();
 775 }
 776
 777
 778
 779 camwindow_globals_t g_camwindow_globals;
 780
 781 const Vector3& Camera_getOrigin( CamWnd& camwnd ){
 782         return Camera_getOrigin( camwnd.getCamera() );
 783 }
 784
 785 void Camera_setOrigin( CamWnd& camwnd, const Vector3& origin ){
 786         Camera_setOrigin( camwnd.getCamera(), origin );
 787 }
 788
 789 const Vector3& Camera_getAngles( CamWnd& camwnd ){
 790         return Camera_getAngles( camwnd.getCamera() );
 791 }
 792
 793 void Camera_setAngles( CamWnd& camwnd, const Vector3& angles ){
 794         Camera_setAngles( camwnd.getCamera(), angles );
 795 }
 796
 797
 798 // =============================================================================
 799 // CamWnd class
 800
 801 gboolean enable_freelook_button_press( ui::Widget widget, GdkEventButton* event, CamWnd* camwnd ){
 802         if ( event->type == GDK_BUTTON_PRESS && event->button == 3 ) {
 803                 camwnd->EnableFreeMove();
 804                 return TRUE;
 805         }
 806         return FALSE;
 807 }
 808
 809 gboolean disable_freelook_button_press( ui::Widget widget, GdkEventButton* event, CamWnd* camwnd ){
 810         if ( event->type == GDK_BUTTON_PRESS && event->button == 3 ) {
 811                 camwnd->DisableFreeMove();
 812                 return TRUE;
 813         }
 814         return FALSE;
 815 }
 816
 817 #if 0
 818 gboolean mousecontrol_button_press( ui::Widget widget, GdkEventButton* event, CamWnd* camwnd ){
 819         if ( event->type == GDK_BUTTON_PRESS && event->button == 3 ) {
 820                 Cam_MouseControl( camwnd->getCamera(), event->x, widget->allocation.height - 1 - event->y );
 821         }
 822         return FALSE;
 823 }
 824 #endif
 825
 826 void camwnd_update_xor_rectangle( CamWnd& self, rect_t area ){
 827         if ( GTK_WIDGET_VISIBLE( self.m_gl_widget ) ) {
 828                 self.m_XORRectangle.set( rectangle_from_area( area.min, area.max, self.getCamera().width, self.getCamera().height ) );
 829         }
 830 }
 831
 832
 833 gboolean selection_button_press( ui::Widget widget, GdkEventButton* event, WindowObserver* observer ){
 834         if ( event->type == GDK_BUTTON_PRESS ) {
 835                 observer->onMouseDown( WindowVector_forDouble( event->x, event->y ), button_for_button( event->button ), modifiers_for_state( event->state ) );
 836         }
 837         return FALSE;
 838 }
 839
 840 gboolean selection_button_release( ui::Widget widget, GdkEventButton* event, WindowObserver* observer ){
 841         if ( event->type == GDK_BUTTON_RELEASE ) {
 842                 observer->onMouseUp( WindowVector_forDouble( event->x, event->y ), button_for_button( event->button ), modifiers_for_state( event->state ) );
 843         }
 844         return FALSE;
 845 }
 846
 847 void selection_motion( gdouble x, gdouble y, guint state, void* data ){
 848         //globalOutputStream() << "motion... ";
 849         reinterpret_cast<WindowObserver*>( data )->onMouseMotion( WindowVector_forDouble( x, y ), modifiers_for_state( state ) );
 850 }
 851
 852 inline WindowVector windowvector_for_widget_centre( ui::Widget widget ){
 853         return WindowVector( static_cast<float>( GTK_WIDGET(widget)->allocation.width / 2 ), static_cast<float>(GTK_WIDGET(widget)->allocation.height / 2 ) );
 854 }
 855
 856 gboolean selection_button_press_freemove( ui::Widget widget, GdkEventButton* event, WindowObserver* observer ){
 857         if ( event->type == GDK_BUTTON_PRESS ) {
 858                 observer->onMouseDown( windowvector_for_widget_centre( widget ), button_for_button( event->button ), modifiers_for_state( event->state ) );
 859         }
 860         return FALSE;
 861 }
 862
 863 gboolean selection_button_release_freemove( ui::Widget widget, GdkEventButton* event, WindowObserver* observer ){
 864         if ( event->type == GDK_BUTTON_RELEASE ) {
 865                 observer->onMouseUp( windowvector_for_widget_centre( widget ), button_for_button( event->button ), modifiers_for_state( event->state ) );
 866         }
 867         return FALSE;
 868 }
 869
 870 gboolean selection_motion_freemove( ui::Widget widget, GdkEventMotion *event, WindowObserver* observer ){
 871         observer->onMouseMotion( windowvector_for_widget_centre( widget ), modifiers_for_state( event->state ) );
 872         return FALSE;
 873 }
 874
 875 gboolean wheelmove_scroll( ui::Widget widget, GdkEventScroll* event, CamWnd* camwnd ){
 876         if ( event->direction == GDK_SCROLL_UP ) {
 877                 Camera_Freemove_updateAxes( camwnd->getCamera() );
 878                 Camera_setOrigin( *camwnd, vector3_added( Camera_getOrigin( *camwnd ), vector3_scaled( camwnd->getCamera().forward, static_cast<float>( g_camwindow_globals_private.m_nMoveSpeed ) ) ) );
 879         }
 880         else if ( event->direction == GDK_SCROLL_DOWN ) {
 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
 885         return FALSE;
 886 }
 887
 888 gboolean camera_size_allocate( ui::Widget widget, GtkAllocation* allocation, CamWnd* camwnd ){
 889         camwnd->getCamera().width = allocation->width;
 890         camwnd->getCamera().height = allocation->height;
 891         Camera_updateProjection( camwnd->getCamera() );
 892         camwnd->m_window_observer->onSizeChanged( camwnd->getCamera().width, camwnd->getCamera().height );
 893         camwnd->queue_draw();
 894         return FALSE;
 895 }
 896
 897 gboolean camera_expose( ui::Widget widget, GdkEventExpose* event, gpointer data ){
 898         reinterpret_cast<CamWnd*>( data )->draw();
 899         return FALSE;
 900 }
 901
 902 void KeyEvent_connect( const char* name ){
 903         const KeyEvent& keyEvent = GlobalKeyEvents_find( name );
 904         keydown_accelerators_add( keyEvent.m_accelerator, keyEvent.m_keyDown );
 905         keyup_accelerators_add( keyEvent.m_accelerator, keyEvent.m_keyUp );
 906 }
 907
 908 void KeyEvent_disconnect( const char* name ){
 909         const KeyEvent& keyEvent = GlobalKeyEvents_find( name );
 910         keydown_accelerators_remove( keyEvent.m_accelerator );
 911         keyup_accelerators_remove( keyEvent.m_accelerator );
 912 }
 913
 914 void CamWnd_registerCommands( CamWnd& camwnd ){
 915         GlobalKeyEvents_insert( "CameraForward", Accelerator( GDK_KEY_Up ),
 916                                                         ReferenceCaller<camera_t, Camera_MoveForward_KeyDown>( camwnd.getCamera() ),
 917                                                         ReferenceCaller<camera_t, Camera_MoveForward_KeyUp>( camwnd.getCamera() )
 918                                                         );
 919         GlobalKeyEvents_insert( "CameraBack", Accelerator( GDK_KEY_Down ),
 920                                                         ReferenceCaller<camera_t, Camera_MoveBack_KeyDown>( camwnd.getCamera() ),
 921                                                         ReferenceCaller<camera_t, Camera_MoveBack_KeyUp>( camwnd.getCamera() )
 922                                                         );
 923         GlobalKeyEvents_insert( "CameraLeft", Accelerator( GDK_KEY_Left ),
 924                                                         ReferenceCaller<camera_t, Camera_RotateLeft_KeyDown>( camwnd.getCamera() ),
 925                                                         ReferenceCaller<camera_t, Camera_RotateLeft_KeyUp>( camwnd.getCamera() )
 926                                                         );
 927         GlobalKeyEvents_insert( "CameraRight", Accelerator( GDK_KEY_Right ),
 928                                                         ReferenceCaller<camera_t, Camera_RotateRight_KeyDown>( camwnd.getCamera() ),
 929                                                         ReferenceCaller<camera_t, Camera_RotateRight_KeyUp>( camwnd.getCamera() )
 930                                                         );
 931         GlobalKeyEvents_insert( "CameraStrafeRight", Accelerator( GDK_KEY_period ),
 932                                                         ReferenceCaller<camera_t, Camera_MoveRight_KeyDown>( camwnd.getCamera() ),
 933                                                         ReferenceCaller<camera_t, Camera_MoveRight_KeyUp>( camwnd.getCamera() )
 934                                                         );
 935         GlobalKeyEvents_insert( "CameraStrafeLeft", Accelerator( GDK_KEY_comma ),
 936                                                         ReferenceCaller<camera_t, Camera_MoveLeft_KeyDown>( camwnd.getCamera() ),
 937                                                         ReferenceCaller<camera_t, Camera_MoveLeft_KeyUp>( camwnd.getCamera() )
 938                                                         );
 939         GlobalKeyEvents_insert( "CameraUp", Accelerator( 'D' ),
 940                                                         ReferenceCaller<camera_t, Camera_MoveUp_KeyDown>( camwnd.getCamera() ),
 941                                                         ReferenceCaller<camera_t, Camera_MoveUp_KeyUp>( camwnd.getCamera() )
 942                                                         );
 943         GlobalKeyEvents_insert( "CameraDown", Accelerator( 'C' ),
 944                                                         ReferenceCaller<camera_t, Camera_MoveDown_KeyDown>( camwnd.getCamera() ),
 945                                                         ReferenceCaller<camera_t, Camera_MoveDown_KeyUp>( camwnd.getCamera() )
 946                                                         );
 947         GlobalKeyEvents_insert( "CameraAngleDown", Accelerator( 'A' ),
 948                                                         ReferenceCaller<camera_t, Camera_PitchDown_KeyDown>( camwnd.getCamera() ),
 949                                                         ReferenceCaller<camera_t, Camera_PitchDown_KeyUp>( camwnd.getCamera() )
 950                                                         );
 951         GlobalKeyEvents_insert( "CameraAngleUp", Accelerator( 'Z' ),
 952                                                         ReferenceCaller<camera_t, Camera_PitchUp_KeyDown>( camwnd.getCamera() ),
 953                                                         ReferenceCaller<camera_t, Camera_PitchUp_KeyUp>( camwnd.getCamera() )
 954                                                         );
 955
 956         GlobalKeyEvents_insert( "CameraFreeMoveForward", Accelerator( GDK_Up ),
 957                                                         FreeMoveCameraMoveForwardKeyDownCaller( camwnd.getCamera() ),
 958                                                         FreeMoveCameraMoveForwardKeyUpCaller( camwnd.getCamera() )
 959                                                         );
 960         GlobalKeyEvents_insert( "CameraFreeMoveBack", Accelerator( GDK_Down ),
 961                                                         FreeMoveCameraMoveBackKeyDownCaller( camwnd.getCamera() ),
 962                                                         FreeMoveCameraMoveBackKeyUpCaller( camwnd.getCamera() )
 963                                                         );
 964         GlobalKeyEvents_insert( "CameraFreeMoveLeft", Accelerator( GDK_Left ),
 965                                                         FreeMoveCameraMoveLeftKeyDownCaller( camwnd.getCamera() ),
 966                                                         FreeMoveCameraMoveLeftKeyUpCaller( camwnd.getCamera() )
 967                                                         );
 968         GlobalKeyEvents_insert( "CameraFreeMoveRight", Accelerator( GDK_Right ),
 969                                                         FreeMoveCameraMoveRightKeyDownCaller( camwnd.getCamera() ),
 970                                                         FreeMoveCameraMoveRightKeyUpCaller( camwnd.getCamera() )
 971                                                         );
 972         GlobalKeyEvents_insert( "CameraFreeMoveUp", Accelerator( 'D' ),
 973                                                         FreeMoveCameraMoveUpKeyDownCaller( camwnd.getCamera() ),
 974                                                         FreeMoveCameraMoveUpKeyUpCaller( camwnd.getCamera() )
 975                                                         );
 976         GlobalKeyEvents_insert( "CameraFreeMoveDown", Accelerator( 'C' ),
 977                                                         FreeMoveCameraMoveDownKeyDownCaller( camwnd.getCamera() ),
 978                                                         FreeMoveCameraMoveDownKeyUpCaller( camwnd.getCamera() )
 979                                                         );
 980
 981         GlobalCommands_insert( "CameraForward", ReferenceCaller<camera_t, Camera_MoveForward_Discrete>( camwnd.getCamera() ), Accelerator( GDK_Up ) );
 982         GlobalCommands_insert( "CameraBack", ReferenceCaller<camera_t, Camera_MoveBack_Discrete>( camwnd.getCamera() ), Accelerator( GDK_Down ) );
 983         GlobalCommands_insert( "CameraLeft", ReferenceCaller<camera_t, Camera_RotateLeft_Discrete>( camwnd.getCamera() ), Accelerator( GDK_Left ) );
 984         GlobalCommands_insert( "CameraRight", ReferenceCaller<camera_t, Camera_RotateRight_Discrete>( camwnd.getCamera() ), Accelerator( GDK_Right ) );
 985         GlobalCommands_insert( "CameraStrafeRight", ReferenceCaller<camera_t, Camera_MoveRight_Discrete>( camwnd.getCamera() ), Accelerator( GDK_period ) );
 986         GlobalCommands_insert( "CameraStrafeLeft", ReferenceCaller<camera_t, Camera_MoveLeft_Discrete>( camwnd.getCamera() ), Accelerator( GDK_comma ) );
 987
 988         GlobalCommands_insert( "CameraUp", ReferenceCaller<camera_t, Camera_MoveUp_Discrete>( camwnd.getCamera() ), Accelerator( 'D' ) );
 989         GlobalCommands_insert( "CameraDown", ReferenceCaller<camera_t, Camera_MoveDown_Discrete>( camwnd.getCamera() ), Accelerator( 'C' ) );
 990         GlobalCommands_insert( "CameraAngleUp", ReferenceCaller<camera_t, Camera_PitchUp_Discrete>( camwnd.getCamera() ), Accelerator( 'A' ) );
 991         GlobalCommands_insert( "CameraAngleDown", ReferenceCaller<camera_t, Camera_PitchDown_Discrete>( camwnd.getCamera() ), Accelerator( 'Z' ) );
 992 }
 993
 994 void CamWnd_Move_Enable( CamWnd& camwnd ){
 995         KeyEvent_connect( "CameraForward" );
 996         KeyEvent_connect( "CameraBack" );
 997         KeyEvent_connect( "CameraLeft" );
 998         KeyEvent_connect( "CameraRight" );
 999         KeyEvent_connect( "CameraStrafeRight" );
1000         KeyEvent_connect( "CameraStrafeLeft" );
1001         KeyEvent_connect( "CameraUp" );
1002         KeyEvent_connect( "CameraDown" );
1003         KeyEvent_connect( "CameraAngleUp" );
1004         KeyEvent_connect( "CameraAngleDown" );
1005 }
1006
1007 void CamWnd_Move_Disable( CamWnd& camwnd ){
1008         KeyEvent_disconnect( "CameraForward" );
1009         KeyEvent_disconnect( "CameraBack" );
1010         KeyEvent_disconnect( "CameraLeft" );
1011         KeyEvent_disconnect( "CameraRight" );
1012         KeyEvent_disconnect( "CameraStrafeRight" );
1013         KeyEvent_disconnect( "CameraStrafeLeft" );
1014         KeyEvent_disconnect( "CameraUp" );
1015         KeyEvent_disconnect( "CameraDown" );
1016         KeyEvent_disconnect( "CameraAngleUp" );
1017         KeyEvent_disconnect( "CameraAngleDown" );
1018 }
1019
1020 void CamWnd_Move_Discrete_Enable( CamWnd& camwnd ){
1021         command_connect_accelerator( "CameraForward" );
1022         command_connect_accelerator( "CameraBack" );
1023         command_connect_accelerator( "CameraLeft" );
1024         command_connect_accelerator( "CameraRight" );
1025         command_connect_accelerator( "CameraStrafeRight" );
1026         command_connect_accelerator( "CameraStrafeLeft" );
1027         command_connect_accelerator( "CameraUp" );
1028         command_connect_accelerator( "CameraDown" );
1029         command_connect_accelerator( "CameraAngleUp" );
1030         command_connect_accelerator( "CameraAngleDown" );
1031 }
1032
1033 void CamWnd_Move_Discrete_Disable( CamWnd& camwnd ){
1034         command_disconnect_accelerator( "CameraForward" );
1035         command_disconnect_accelerator( "CameraBack" );
1036         command_disconnect_accelerator( "CameraLeft" );
1037         command_disconnect_accelerator( "CameraRight" );
1038         command_disconnect_accelerator( "CameraStrafeRight" );
1039         command_disconnect_accelerator( "CameraStrafeLeft" );
1040         command_disconnect_accelerator( "CameraUp" );
1041         command_disconnect_accelerator( "CameraDown" );
1042         command_disconnect_accelerator( "CameraAngleUp" );
1043         command_disconnect_accelerator( "CameraAngleDown" );
1044 }
1045
1046 void CamWnd_Move_Discrete_Import( CamWnd& camwnd, bool value ){
1047         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1048                 CamWnd_Move_Discrete_Disable( camwnd );
1049         }
1050         else
1051         {
1052                 CamWnd_Move_Disable( camwnd );
1053         }
1054
1055         g_camwindow_globals_private.m_bCamDiscrete = value;
1056
1057         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1058                 CamWnd_Move_Discrete_Enable( camwnd );
1059         }
1060         else
1061         {
1062                 CamWnd_Move_Enable( camwnd );
1063         }
1064 }
1065
1066 void CamWnd_Move_Discrete_Import( bool value ){
1067         if ( g_camwnd != 0 ) {
1068                 CamWnd_Move_Discrete_Import( *g_camwnd, value );
1069         }
1070         else
1071         {
1072                 g_camwindow_globals_private.m_bCamDiscrete = value;
1073         }
1074 }
1075
1076
1077
1078 void CamWnd_Add_Handlers_Move( CamWnd& camwnd ){
1079         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 );
1080         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 );
1081         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 );
1082
1083         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 );
1084
1085         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1086                 CamWnd_Move_Discrete_Enable( camwnd );
1087         }
1088         else
1089         {
1090                 CamWnd_Move_Enable( camwnd );
1091         }
1092 }
1093
1094 void CamWnd_Remove_Handlers_Move( CamWnd& camwnd ){
1095         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_press_handler );
1096         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_release_handler );
1097         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_motion_handler );
1098
1099         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_freelook_button_press_handler );
1100
1101         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1102                 CamWnd_Move_Discrete_Disable( camwnd );
1103         }
1104         else
1105         {
1106                 CamWnd_Move_Disable( camwnd );
1107         }
1108 }
1109
1110 void CamWnd_Add_Handlers_FreeMove( CamWnd& camwnd ){
1111         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 );
1112         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 );
1113         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 );
1114
1115         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 );
1116
1117         KeyEvent_connect( "CameraFreeMoveForward" );
1118         KeyEvent_connect( "CameraFreeMoveBack" );
1119         KeyEvent_connect( "CameraFreeMoveLeft" );
1120         KeyEvent_connect( "CameraFreeMoveRight" );
1121         KeyEvent_connect( "CameraFreeMoveUp" );
1122         KeyEvent_connect( "CameraFreeMoveDown" );
1123 }
1124
1125 void CamWnd_Remove_Handlers_FreeMove( CamWnd& camwnd ){
1126         KeyEvent_disconnect( "CameraFreeMoveForward" );
1127         KeyEvent_disconnect( "CameraFreeMoveBack" );
1128         KeyEvent_disconnect( "CameraFreeMoveLeft" );
1129         KeyEvent_disconnect( "CameraFreeMoveRight" );
1130         KeyEvent_disconnect( "CameraFreeMoveUp" );
1131         KeyEvent_disconnect( "CameraFreeMoveDown" );
1132
1133         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_press_handler );
1134         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_release_handler );
1135         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_motion_handler );
1136
1137         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_freelook_button_press_handler );
1138 }
1139
1140 CamWnd::CamWnd() :
1141         m_view( true ),
1142         m_Camera( &m_view, CamWndQueueDraw( *this ) ),
1143         m_cameraview( m_Camera, &m_view, ReferenceCaller<CamWnd, CamWnd_Update>( *this ) ),
1144         m_gl_widget( ui::Widget(glwidget_new( TRUE )) ),
1145         m_window_observer( NewWindowObserver() ),
1146         m_XORRectangle( m_gl_widget ),
1147         m_deferredDraw( WidgetQueueDrawCaller( *m_gl_widget ) ),
1148         m_deferred_motion( selection_motion, m_window_observer ),
1149         m_selection_button_press_handler( 0 ),
1150         m_selection_button_release_handler( 0 ),
1151         m_selection_motion_handler( 0 ),
1152         m_freelook_button_press_handler( 0 ),
1153         m_drawing( false ){
1154         m_bFreeMove = false;
1155
1156         GlobalWindowObservers_add( m_window_observer );
1157         GlobalWindowObservers_connectWidget( m_gl_widget );
1158
1159         m_window_observer->setRectangleDrawCallback( ReferenceCaller1<CamWnd, rect_t, camwnd_update_xor_rectangle>( *this ) );
1160         m_window_observer->setView( m_view );
1161
1162         gtk_widget_ref( m_gl_widget );
1163
1164         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 );
1165         GTK_WIDGET_SET_FLAGS( m_gl_widget, GTK_CAN_FOCUS );
1166
1167         m_sizeHandler = g_signal_connect( G_OBJECT( m_gl_widget ), "size_allocate", G_CALLBACK( camera_size_allocate ), this );
1168         m_exposeHandler = g_signal_connect( G_OBJECT( m_gl_widget ), "expose_event", G_CALLBACK( camera_expose ), this );
1169
1170         Map_addValidCallback( g_map, DeferredDrawOnMapValidChangedCaller( m_deferredDraw ) );
1171
1172         CamWnd_registerCommands( *this );
1173
1174         CamWnd_Add_Handlers_Move( *this );
1175
1176         g_signal_connect( G_OBJECT( m_gl_widget ), "scroll_event", G_CALLBACK( wheelmove_scroll ), this );
1177
1178         AddSceneChangeCallback( ReferenceCaller<CamWnd, CamWnd_Update>( *this ) );
1179
1180         PressedButtons_connect( g_pressedButtons, m_gl_widget );
1181 }
1182
1183 CamWnd::~CamWnd(){
1184         if ( m_bFreeMove ) {
1185                 DisableFreeMove();
1186         }
1187
1188         CamWnd_Remove_Handlers_Move( *this );
1189
1190         g_signal_handler_disconnect( G_OBJECT( m_gl_widget ), m_sizeHandler );
1191         g_signal_handler_disconnect( G_OBJECT( m_gl_widget ), m_exposeHandler );
1192
1193         gtk_widget_unref( m_gl_widget );
1194
1195         m_window_observer->release();
1196 }
1197
1198 class FloorHeightWalker : public scene::Graph::Walker
1199 {
1200 float m_current;
1201 float& m_bestUp;
1202 float& m_bestDown;
1203 public:
1204 FloorHeightWalker( float current, float& bestUp, float& bestDown ) :
1205         m_current( current ), m_bestUp( bestUp ), m_bestDown( bestDown ){
1206         bestUp = g_MaxWorldCoord;
1207         bestDown = -g_MaxWorldCoord;
1208 }
1209 bool pre( const scene::Path& path, scene::Instance& instance ) const {
1210         if ( path.top().get().visible()
1211                  && Node_isBrush( path.top() ) ) { // this node is a floor
1212                 const AABB& aabb = instance.worldAABB();
1213                 float floorHeight = aabb.origin.z() + aabb.extents.z();
1214                 if ( floorHeight > m_current && floorHeight < m_bestUp ) {
1215                         m_bestUp = floorHeight;
1216                 }
1217                 if ( floorHeight < m_current && floorHeight > m_bestDown ) {
1218                         m_bestDown = floorHeight;
1219                 }
1220         }
1221         return true;
1222 }
1223 };
1224
1225 void CamWnd::Cam_ChangeFloor( bool up ){
1226         float current = m_Camera.origin[2] - 48;
1227         float bestUp;
1228         float bestDown;
1229         GlobalSceneGraph().traverse( FloorHeightWalker( current, bestUp, bestDown ) );
1230
1231         if ( up && bestUp != g_MaxWorldCoord ) {
1232                 current = bestUp;
1233         }
1234         if ( !up && bestDown != -g_MaxWorldCoord ) {
1235                 current = bestDown;
1236         }
1237
1238         m_Camera.origin[2] = current + 48;
1239         Camera_updateModelview( getCamera() );
1240         CamWnd_Update( *this );
1241         CameraMovedNotify();
1242 }
1243
1244
1245 #if 0
1246
1247 // button_press
1248 Sys_GetCursorPos( &m_PositionDragCursorX, &m_PositionDragCursorY );
1249
1250 // motion
1251 if ( ( m_bFreeMove && ( buttons == ( RAD_CONTROL | RAD_SHIFT ) ) )
1252          || ( !m_bFreeMove && ( buttons == ( RAD_RBUTTON | RAD_CONTROL ) ) ) ) {
1253         Cam_PositionDrag();
1254         CamWnd_Update( camwnd );
1255         CameraMovedNotify();
1256         return;
1257 }
1258
1259 void CamWnd::Cam_PositionDrag(){
1260         int x, y;
1261
1262         Sys_GetCursorPos( GTK_WINDOW( m_gl_widget ), &x, &y );
1263         if ( x != m_PositionDragCursorX || y != m_PositionDragCursorY ) {
1264                 x -= m_PositionDragCursorX;
1265                 vector3_add( m_Camera.origin, vector3_scaled( m_Camera.vright, x ) );
1266                 y -= m_PositionDragCursorY;
1267                 m_Camera.origin[2] -= y;
1268                 Camera_updateModelview();
1269                 CamWnd_Update( camwnd );
1270                 CameraMovedNotify();
1271
1272                 Sys_SetCursorPos( GTK_WINDOW( m_parent ), m_PositionDragCursorX, m_PositionDragCursorY );
1273         }
1274 }
1275 #endif
1276
1277
1278 // NOTE TTimo if there's an OS-level focus out of the application
1279 //   then we can release the camera cursor grab
1280 static gboolean camwindow_freemove_focusout( ui::Widget widget, GdkEventFocus* event, gpointer data ){
1281         reinterpret_cast<CamWnd*>( data )->DisableFreeMove();
1282         return FALSE;
1283 }
1284
1285 void CamWnd::EnableFreeMove(){
1286         //globalOutputStream() << "EnableFreeMove\n";
1287
1288         ASSERT_MESSAGE( !m_bFreeMove, "EnableFreeMove: free-move was already enabled" );
1289         m_bFreeMove = true;
1290         Camera_clearMovementFlags( getCamera(), MOVE_ALL );
1291
1292         CamWnd_Remove_Handlers_Move( *this );
1293         CamWnd_Add_Handlers_FreeMove( *this );
1294
1295         gtk_window_set_focus( m_parent, m_gl_widget );
1296         m_freemove_handle_focusout = g_signal_connect( G_OBJECT( m_gl_widget ), "focus_out_event", G_CALLBACK( camwindow_freemove_focusout ), this );
1297         m_freezePointer.freeze_pointer( m_parent, Camera_motionDelta, &m_Camera );
1298
1299         CamWnd_Update( *this );
1300 }
1301
1302 void CamWnd::DisableFreeMove(){
1303         //globalOutputStream() << "DisableFreeMove\n";
1304
1305         ASSERT_MESSAGE( m_bFreeMove, "DisableFreeMove: free-move was not enabled" );
1306         m_bFreeMove = false;
1307         Camera_clearMovementFlags( getCamera(), MOVE_ALL );
1308
1309         CamWnd_Remove_Handlers_FreeMove( *this );
1310         CamWnd_Add_Handlers_Move( *this );
1311
1312         m_freezePointer.unfreeze_pointer( m_parent );
1313         g_signal_handler_disconnect( G_OBJECT( m_gl_widget ), m_freemove_handle_focusout );
1314
1315         CamWnd_Update( *this );
1316 }
1317
1318
1319 #include "renderer.h"
1320
1321 class CamRenderer : public Renderer
1322 {
1323 struct state_type
1324 {
1325         state_type() : m_highlight( 0 ), m_state( 0 ), m_lights( 0 ){
1326         }
1327         unsigned int m_highlight;
1328         Shader* m_state;
1329         const LightList* m_lights;
1330 };
1331
1332 std::vector<state_type> m_state_stack;
1333 RenderStateFlags m_globalstate;
1334 Shader* m_state_select0;
1335 Shader* m_state_select1;
1336 const Vector3& m_viewer;
1337
1338 public:
1339 CamRenderer( RenderStateFlags globalstate, Shader* select0, Shader* select1, const Vector3& viewer ) :
1340         m_globalstate( globalstate ),
1341         m_state_select0( select0 ),
1342         m_state_select1( select1 ),
1343         m_viewer( viewer ){
1344         ASSERT_NOTNULL( select0 );
1345         ASSERT_NOTNULL( select1 );
1346         m_state_stack.push_back( state_type() );
1347 }
1348
1349 void SetState( Shader* state, EStyle style ){
1350         ASSERT_NOTNULL( state );
1351         if ( style == eFullMaterials ) {
1352                 m_state_stack.back().m_state = state;
1353         }
1354 }
1355 EStyle getStyle() const {
1356         return eFullMaterials;
1357 }
1358 void PushState(){
1359         m_state_stack.push_back( m_state_stack.back() );
1360 }
1361 void PopState(){
1362         ASSERT_MESSAGE( !m_state_stack.empty(), "popping empty stack" );
1363         m_state_stack.pop_back();
1364 }
1365 void Highlight( EHighlightMode mode, bool bEnable = true ){
1366         ( bEnable )
1367         ? m_state_stack.back().m_highlight |= mode
1368                                                                                   : m_state_stack.back().m_highlight &= ~mode;
1369 }
1370 void setLights( const LightList& lights ){
1371         m_state_stack.back().m_lights = &lights;
1372 }
1373 void addRenderable( const OpenGLRenderable& renderable, const Matrix4& world ){
1374         if ( m_state_stack.back().m_highlight & ePrimitive ) {
1375                 m_state_select0->addRenderable( renderable, world, m_state_stack.back().m_lights );
1376         }
1377         if ( m_state_stack.back().m_highlight & eFace ) {
1378                 m_state_select1->addRenderable( renderable, world, m_state_stack.back().m_lights );
1379         }
1380
1381         m_state_stack.back().m_state->addRenderable( renderable, world, m_state_stack.back().m_lights );
1382 }
1383
1384 void render( const Matrix4& modelview, const Matrix4& projection ){
1385         GlobalShaderCache().render( m_globalstate, modelview, projection, m_viewer );
1386 }
1387 };
1388
1389 /*
1390    ==============
1391    Cam_Draw
1392    ==============
1393  */
1394
1395 void ShowStatsToggle(){
1396         g_camwindow_globals_private.m_showStats ^= 1;
1397 }
1398 typedef FreeCaller<ShowStatsToggle> ShowStatsToggleCaller;
1399
1400 void ShowStatsExport( const BoolImportCallback& importer ){
1401         importer( g_camwindow_globals_private.m_showStats );
1402 }
1403 typedef FreeCaller1<const BoolImportCallback&, ShowStatsExport> ShowStatsExportCaller;
1404
1405 ShowStatsExportCaller g_show_stats_caller;
1406 BoolExportCallback g_show_stats_callback( g_show_stats_caller );
1407 ToggleItem g_show_stats( g_show_stats_callback );
1408
1409 void CamWnd::Cam_Draw(){
1410         glViewport( 0, 0, m_Camera.width, m_Camera.height );
1411 #if 0
1412         GLint viewprt[4];
1413         glGetIntegerv( GL_VIEWPORT, viewprt );
1414 #endif
1415
1416         // enable depth buffer writes
1417         glDepthMask( GL_TRUE );
1418         glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
1419
1420         Vector3 clearColour( 0, 0, 0 );
1421         if ( m_Camera.draw_mode != cd_lighting ) {
1422                 clearColour = g_camwindow_globals.color_cameraback;
1423         }
1424
1425         glClearColor( clearColour[0], clearColour[1], clearColour[2], 0 );
1426         glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
1427
1428         extern void Renderer_ResetStats();
1429         Renderer_ResetStats();
1430         extern void Cull_ResetStats();
1431         Cull_ResetStats();
1432
1433         glMatrixMode( GL_PROJECTION );
1434         glLoadMatrixf( reinterpret_cast<const float*>( &m_Camera.projection ) );
1435
1436         glMatrixMode( GL_MODELVIEW );
1437         glLoadMatrixf( reinterpret_cast<const float*>( &m_Camera.modelview ) );
1438
1439
1440         // one directional light source directly behind the viewer
1441         {
1442                 GLfloat inverse_cam_dir[4], ambient[4], diffuse[4]; //, material[4];
1443
1444                 ambient[0] = ambient[1] = ambient[2] = 0.4f;
1445                 ambient[3] = 1.0f;
1446                 diffuse[0] = diffuse[1] = diffuse[2] = 0.4f;
1447                 diffuse[3] = 1.0f;
1448                 //material[0] = material[1] = material[2] = 0.8f;
1449                 //material[3] = 1.0f;
1450
1451                 inverse_cam_dir[0] = m_Camera.vpn[0];
1452                 inverse_cam_dir[1] = m_Camera.vpn[1];
1453                 inverse_cam_dir[2] = m_Camera.vpn[2];
1454                 inverse_cam_dir[3] = 0;
1455
1456                 glLightfv( GL_LIGHT0, GL_POSITION, inverse_cam_dir );
1457
1458                 glLightfv( GL_LIGHT0, GL_AMBIENT, ambient );
1459                 glLightfv( GL_LIGHT0, GL_DIFFUSE, diffuse );
1460
1461                 glEnable( GL_LIGHT0 );
1462         }
1463
1464
1465         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;
1466         switch ( m_Camera.draw_mode )
1467         {
1468         case cd_wire:
1469                 break;
1470         case cd_solid:
1471                 globalstate |= RENDER_FILL
1472                                            | RENDER_LIGHTING
1473                                            | RENDER_SMOOTH
1474                                            | RENDER_SCALED;
1475                 break;
1476         case cd_texture:
1477                 globalstate |= RENDER_FILL
1478                                            | RENDER_LIGHTING
1479                                            | RENDER_TEXTURE
1480                                            | RENDER_SMOOTH
1481                                            | RENDER_SCALED;
1482                 break;
1483         case cd_lighting:
1484                 globalstate |= RENDER_FILL
1485                                            | RENDER_LIGHTING
1486                                            | RENDER_TEXTURE
1487                                            | RENDER_SMOOTH
1488                                            | RENDER_SCALED
1489                                            | RENDER_BUMP
1490                                            | RENDER_PROGRAM
1491                                            | RENDER_SCREEN;
1492                 break;
1493         default:
1494                 globalstate = 0;
1495                 break;
1496         }
1497
1498         if ( !g_xywindow_globals.m_bNoStipple ) {
1499                 globalstate |= RENDER_LINESTIPPLE | RENDER_POLYGONSTIPPLE;
1500         }
1501
1502         {
1503                 CamRenderer renderer( globalstate, m_state_select2, m_state_select1, m_view.getViewer() );
1504
1505                 Scene_Render( renderer, m_view );
1506
1507                 renderer.render( m_Camera.modelview, m_Camera.projection );
1508         }
1509
1510         // prepare for 2d stuff
1511         glColor4f( 1, 1, 1, 1 );
1512         glDisable( GL_BLEND );
1513         glMatrixMode( GL_PROJECTION );
1514         glLoadIdentity();
1515         glOrtho( 0, (float)m_Camera.width, 0, (float)m_Camera.height, -100, 100 );
1516         glScalef( 1, -1, 1 );
1517         glTranslatef( 0, -(float)m_Camera.height, 0 );
1518         glMatrixMode( GL_MODELVIEW );
1519         glLoadIdentity();
1520
1521         if ( GlobalOpenGL().GL_1_3() ) {
1522                 glClientActiveTexture( GL_TEXTURE0 );
1523                 glActiveTexture( GL_TEXTURE0 );
1524         }
1525
1526         glDisableClientState( GL_TEXTURE_COORD_ARRAY );
1527         glDisableClientState( GL_NORMAL_ARRAY );
1528         glDisableClientState( GL_COLOR_ARRAY );
1529
1530         glDisable( GL_TEXTURE_2D );
1531         glDisable( GL_LIGHTING );
1532         glDisable( GL_COLOR_MATERIAL );
1533         glDisable( GL_DEPTH_TEST );
1534         glColor3f( 1.f, 1.f, 1.f );
1535         glLineWidth( 1 );
1536
1537         // draw the crosshair
1538         if ( m_bFreeMove ) {
1539                 glBegin( GL_LINES );
1540                 glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f + 6 );
1541                 glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f + 2 );
1542                 glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f - 6 );
1543                 glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f - 2 );
1544                 glVertex2f( (float)m_Camera.width / 2.f + 6, (float)m_Camera.height / 2.f );
1545                 glVertex2f( (float)m_Camera.width / 2.f + 2, (float)m_Camera.height / 2.f );
1546                 glVertex2f( (float)m_Camera.width / 2.f - 6, (float)m_Camera.height / 2.f );
1547                 glVertex2f( (float)m_Camera.width / 2.f - 2, (float)m_Camera.height / 2.f );
1548                 glEnd();
1549         }
1550
1551         if ( g_camwindow_globals_private.m_showStats ) {
1552                 glRasterPos3f( 1.0f, static_cast<float>( m_Camera.height ) - GlobalOpenGL().m_font->getPixelDescent(), 0.0f );
1553                 extern const char* Renderer_GetStats();
1554                 GlobalOpenGL().drawString( Renderer_GetStats() );
1555
1556                 glRasterPos3f( 1.0f, static_cast<float>( m_Camera.height ) - GlobalOpenGL().m_font->getPixelDescent() - GlobalOpenGL().m_font->getPixelHeight(), 0.0f );
1557                 extern const char* Cull_GetStats();
1558                 GlobalOpenGL().drawString( Cull_GetStats() );
1559         }
1560
1561         // bind back to the default texture so that we don't have problems
1562         // elsewhere using/modifying texture maps between contexts
1563         glBindTexture( GL_TEXTURE_2D, 0 );
1564 }
1565
1566 void CamWnd::draw(){
1567         m_drawing = true;
1568
1569         //globalOutputStream() << "draw...\n";
1570         if ( glwidget_make_current( m_gl_widget ) != FALSE ) {
1571                 if ( Map_Valid( g_map ) && ScreenUpdates_Enabled() ) {
1572                         GlobalOpenGL_debugAssertNoErrors();
1573                         Cam_Draw();
1574                         GlobalOpenGL_debugAssertNoErrors();
1575                         //qglFinish();
1576
1577                         m_XORRectangle.set( rectangle_t() );
1578                 }
1579
1580                 glwidget_swap_buffers( m_gl_widget );
1581         }
1582
1583         m_drawing = false;
1584 }
1585
1586 void CamWnd::BenchMark(){
1587         double dStart = Sys_DoubleTime();
1588         for ( int i = 0 ; i < 100 ; i++ )
1589         {
1590                 Vector3 angles;
1591                 angles[CAMERA_ROLL] = 0;
1592                 angles[CAMERA_PITCH] = 0;
1593                 angles[CAMERA_YAW] = static_cast<float>( i * ( 360.0 / 100.0 ) );
1594                 Camera_setAngles( *this, angles );
1595         }
1596         double dEnd = Sys_DoubleTime();
1597         globalOutputStream() << FloatFormat( dEnd - dStart, 5, 2 ) << " seconds\n";
1598 }
1599
1600
1601 void fill_view_camera_menu( GtkMenu* menu ){
1602         create_check_menu_item_with_mnemonic( menu, "Camera View", "ToggleCamera" );
1603 }
1604
1605 void GlobalCamera_ResetAngles(){
1606         CamWnd& camwnd = *g_camwnd;
1607         Vector3 angles;
1608         angles[CAMERA_ROLL] = angles[CAMERA_PITCH] = 0;
1609         angles[CAMERA_YAW] = static_cast<float>( 22.5 * floor( ( Camera_getAngles( camwnd )[CAMERA_YAW] + 11 ) / 22.5 ) );
1610         Camera_setAngles( camwnd, angles );
1611 }
1612
1613 void Camera_ChangeFloorUp(){
1614         CamWnd& camwnd = *g_camwnd;
1615         camwnd.Cam_ChangeFloor( true );
1616 }
1617
1618 void Camera_ChangeFloorDown(){
1619         CamWnd& camwnd = *g_camwnd;
1620         camwnd.Cam_ChangeFloor( false );
1621 }
1622
1623 void Camera_CubeIn(){
1624         CamWnd& camwnd = *g_camwnd;
1625         g_camwindow_globals.m_nCubicScale--;
1626         if ( g_camwindow_globals.m_nCubicScale < 1 ) {
1627                 g_camwindow_globals.m_nCubicScale = 1;
1628         }
1629         Camera_updateProjection( camwnd.getCamera() );
1630         CamWnd_Update( camwnd );
1631         g_pParentWnd->SetGridStatus();
1632 }
1633
1634 void Camera_CubeOut(){
1635         CamWnd& camwnd = *g_camwnd;
1636         g_camwindow_globals.m_nCubicScale++;
1637         if ( g_camwindow_globals.m_nCubicScale > 23 ) {
1638                 g_camwindow_globals.m_nCubicScale = 23;
1639         }
1640         Camera_updateProjection( camwnd.getCamera() );
1641         CamWnd_Update( camwnd );
1642         g_pParentWnd->SetGridStatus();
1643 }
1644
1645 bool Camera_GetFarClip(){
1646         return g_camwindow_globals_private.m_bCubicClipping;
1647 }
1648
1649 BoolExportCaller g_getfarclip_caller( g_camwindow_globals_private.m_bCubicClipping );
1650 ToggleItem g_getfarclip_item( g_getfarclip_caller );
1651
1652 void Camera_SetFarClip( bool value ){
1653         CamWnd& camwnd = *g_camwnd;
1654         g_camwindow_globals_private.m_bCubicClipping = value;
1655         g_getfarclip_item.update();
1656         Camera_updateProjection( camwnd.getCamera() );
1657         CamWnd_Update( camwnd );
1658 }
1659
1660 void Camera_ToggleFarClip(){
1661         Camera_SetFarClip( !Camera_GetFarClip() );
1662 }
1663
1664
1665 void CamWnd_constructToolbar( GtkToolbar* toolbar ){
1666         toolbar_append_toggle_button( toolbar, "Cubic clip the camera view (\\)", "view_cubicclipping.png", "ToggleCubicClip" );
1667 }
1668
1669 void CamWnd_registerShortcuts(){
1670         toggle_add_accelerator( "ToggleCubicClip" );
1671
1672         if ( g_pGameDescription->mGameType == "doom3" ) {
1673                 command_connect_accelerator( "TogglePreview" );
1674         }
1675
1676         command_connect_accelerator( "CameraSpeedInc" );
1677         command_connect_accelerator( "CameraSpeedDec" );
1678 }
1679
1680
1681 void GlobalCamera_Benchmark(){
1682         CamWnd& camwnd = *g_camwnd;
1683         camwnd.BenchMark();
1684 }
1685
1686 void GlobalCamera_Update(){
1687         CamWnd& camwnd = *g_camwnd;
1688         CamWnd_Update( camwnd );
1689 }
1690
1691 camera_draw_mode CamWnd_GetMode(){
1692         return camera_t::draw_mode;
1693 }
1694 void CamWnd_SetMode( camera_draw_mode mode ){
1695         ShaderCache_setBumpEnabled( mode == cd_lighting );
1696         camera_t::draw_mode = mode;
1697         if ( g_camwnd != 0 ) {
1698                 CamWnd_Update( *g_camwnd );
1699         }
1700 }
1701
1702 void CamWnd_TogglePreview( void ){
1703         // gametype must be doom3 for this function to work
1704         // if the gametype is not doom3 something is wrong with the
1705         // global command list or somebody else calls this function.
1706         ASSERT_MESSAGE( g_pGameDescription->mGameType == "doom3", "CamWnd_TogglePreview called although mGameType is not doom3 compatible" );
1707
1708         // switch between textured and lighting mode
1709         CamWnd_SetMode( ( CamWnd_GetMode() == cd_lighting ) ? cd_texture : cd_lighting );
1710 }
1711
1712
1713 CameraModel* g_camera_model = 0;
1714
1715 void CamWnd_LookThroughCamera( CamWnd& camwnd ){
1716         if ( g_camera_model != 0 ) {
1717                 CamWnd_Add_Handlers_Move( camwnd );
1718                 g_camera_model->setCameraView( 0, Callback() );
1719                 g_camera_model = 0;
1720                 Camera_updateModelview( camwnd.getCamera() );
1721                 Camera_updateProjection( camwnd.getCamera() );
1722                 CamWnd_Update( camwnd );
1723         }
1724 }
1725
1726 inline CameraModel* Instance_getCameraModel( scene::Instance& instance ){
1727         return InstanceTypeCast<CameraModel>::cast( instance );
1728 }
1729
1730 void CamWnd_LookThroughSelected( CamWnd& camwnd ){
1731         if ( g_camera_model != 0 ) {
1732                 CamWnd_LookThroughCamera( camwnd );
1733         }
1734
1735         if ( GlobalSelectionSystem().countSelected() != 0 ) {
1736                 scene::Instance& instance = GlobalSelectionSystem().ultimateSelected();
1737                 CameraModel* cameraModel = Instance_getCameraModel( instance );
1738                 if ( cameraModel != 0 ) {
1739                         CamWnd_Remove_Handlers_Move( camwnd );
1740                         g_camera_model = cameraModel;
1741                         g_camera_model->setCameraView( &camwnd.getCameraView(), ReferenceCaller<CamWnd, CamWnd_LookThroughCamera>( camwnd ) );
1742                 }
1743         }
1744 }
1745
1746 void GlobalCamera_LookThroughSelected(){
1747         CamWnd_LookThroughSelected( *g_camwnd );
1748 }
1749
1750 void GlobalCamera_LookThroughCamera(){
1751         CamWnd_LookThroughCamera( *g_camwnd );
1752 }
1753
1754
1755 void RenderModeImport( int value ){
1756         switch ( value )
1757         {
1758         case 0:
1759                 CamWnd_SetMode( cd_wire );
1760                 break;
1761         case 1:
1762                 CamWnd_SetMode( cd_solid );
1763                 break;
1764         case 2:
1765                 CamWnd_SetMode( cd_texture );
1766                 break;
1767         case 3:
1768                 CamWnd_SetMode( cd_lighting );
1769                 break;
1770         default:
1771                 CamWnd_SetMode( cd_texture );
1772         }
1773 }
1774 typedef FreeCaller1<int, RenderModeImport> RenderModeImportCaller;
1775
1776 void RenderModeExport( const IntImportCallback& importer ){
1777         switch ( CamWnd_GetMode() )
1778         {
1779         case cd_wire:
1780                 importer( 0 );
1781                 break;
1782         case cd_solid:
1783                 importer( 1 );
1784                 break;
1785         case cd_texture:
1786                 importer( 2 );
1787                 break;
1788         case cd_lighting:
1789                 importer( 3 );
1790                 break;
1791         }
1792 }
1793 typedef FreeCaller1<const IntImportCallback&, RenderModeExport> RenderModeExportCaller;
1794
1795 void Camera_constructPreferences( PreferencesPage& page ){
1796         page.appendSlider( "Movement Speed", g_camwindow_globals_private.m_nMoveSpeed, TRUE, 0, 0, 100, MIN_CAM_SPEED, MAX_CAM_SPEED, 1, 10 );
1797         page.appendCheckBox( "", "Link strafe speed to movement speed", g_camwindow_globals_private.m_bCamLinkSpeed );
1798         page.appendSlider( "Rotation Speed", g_camwindow_globals_private.m_nAngleSpeed, TRUE, 0, 0, 3, 1, 180, 1, 10 );
1799         page.appendCheckBox( "", "Invert mouse vertical axis", g_camwindow_globals_private.m_bCamInverseMouse );
1800         page.appendCheckBox(
1801                 "", "Discrete movement",
1802                 FreeCaller1<bool, CamWnd_Move_Discrete_Import>(),
1803                 BoolExportCaller( g_camwindow_globals_private.m_bCamDiscrete )
1804                 );
1805         page.appendCheckBox(
1806                 "", "Enable far-clip plane",
1807                 FreeCaller1<bool, Camera_SetFarClip>(),
1808                 BoolExportCaller( g_camwindow_globals_private.m_bCubicClipping )
1809                 );
1810
1811         if ( g_pGameDescription->mGameType == "doom3" ) {
1812                 const char* render_mode[] = { "Wireframe", "Flatshade", "Textured", "Lighting" };
1813
1814                 page.appendCombo(
1815                         "Render Mode",
1816                         STRING_ARRAY_RANGE( render_mode ),
1817                         IntImportCallback( RenderModeImportCaller() ),
1818                         IntExportCallback( RenderModeExportCaller() )
1819                         );
1820         }
1821         else
1822         {
1823                 const char* render_mode[] = { "Wireframe", "Flatshade", "Textured" };
1824
1825                 page.appendCombo(
1826                         "Render Mode",
1827                         STRING_ARRAY_RANGE( render_mode ),
1828                         IntImportCallback( RenderModeImportCaller() ),
1829                         IntExportCallback( RenderModeExportCaller() )
1830                         );
1831         }
1832
1833         const char* strafe_mode[] = { "Both", "Forward", "Up" };
1834
1835         page.appendCombo(
1836                 "Strafe Mode",
1837                 g_camwindow_globals_private.m_nStrafeMode,
1838                 STRING_ARRAY_RANGE( strafe_mode )
1839                 );
1840 }
1841 void Camera_constructPage( PreferenceGroup& group ){
1842         PreferencesPage page( group.createPage( "Camera", "Camera View Preferences" ) );
1843         Camera_constructPreferences( page );
1844 }
1845 void Camera_registerPreferencesPage(){
1846         PreferencesDialog_addSettingsPage( FreeCaller1<PreferenceGroup&, Camera_constructPage>() );
1847 }
1848
1849 #include "preferencesystem.h"
1850 #include "stringio.h"
1851 #include "dialog.h"
1852
1853 typedef FreeCaller1<bool, CamWnd_Move_Discrete_Import> CamWndMoveDiscreteImportCaller;
1854
1855 void CameraSpeed_increase(){
1856         if ( g_camwindow_globals_private.m_nMoveSpeed <= ( MAX_CAM_SPEED - CAM_SPEED_STEP - 10 ) ) {
1857                 g_camwindow_globals_private.m_nMoveSpeed += CAM_SPEED_STEP;
1858         }
1859         else {
1860                 g_camwindow_globals_private.m_nMoveSpeed = MAX_CAM_SPEED - 10;
1861         }
1862 }
1863
1864 void CameraSpeed_decrease(){
1865         if ( g_camwindow_globals_private.m_nMoveSpeed >= ( MIN_CAM_SPEED + CAM_SPEED_STEP ) ) {
1866                 g_camwindow_globals_private.m_nMoveSpeed -= CAM_SPEED_STEP;
1867         }
1868         else {
1869                 g_camwindow_globals_private.m_nMoveSpeed = MIN_CAM_SPEED;
1870         }
1871 }
1872
1873 /// \brief Initialisation for things that have the same lifespan as this module.
1874 void CamWnd_Construct(){
1875         GlobalCommands_insert( "CenterView", FreeCaller<GlobalCamera_ResetAngles>(), Accelerator( GDK_End ) );
1876
1877         GlobalToggles_insert( "ToggleCubicClip", FreeCaller<Camera_ToggleFarClip>(), ToggleItem::AddCallbackCaller( g_getfarclip_item ), Accelerator( '\\', (GdkModifierType)GDK_CONTROL_MASK ) );
1878         GlobalCommands_insert( "CubicClipZoomIn", FreeCaller<Camera_CubeIn>(), Accelerator( '[', (GdkModifierType)GDK_CONTROL_MASK ) );
1879         GlobalCommands_insert( "CubicClipZoomOut", FreeCaller<Camera_CubeOut>(), Accelerator( ']', (GdkModifierType)GDK_CONTROL_MASK ) );
1880
1881         GlobalCommands_insert( "UpFloor", FreeCaller<Camera_ChangeFloorUp>(), Accelerator( GDK_Prior ) );
1882         GlobalCommands_insert( "DownFloor", FreeCaller<Camera_ChangeFloorDown>(), Accelerator( GDK_Next ) );
1883
1884         GlobalToggles_insert( "ToggleCamera", ToggleShown::ToggleCaller( g_camera_shown ), ToggleItem::AddCallbackCaller( g_camera_shown.m_item ), Accelerator( 'C', (GdkModifierType)( GDK_SHIFT_MASK | GDK_CONTROL_MASK ) ) );
1885         GlobalCommands_insert( "LookThroughSelected", FreeCaller<GlobalCamera_LookThroughSelected>() );
1886         GlobalCommands_insert( "LookThroughCamera", FreeCaller<GlobalCamera_LookThroughCamera>() );
1887
1888         if ( g_pGameDescription->mGameType == "doom3" ) {
1889                 GlobalCommands_insert( "TogglePreview", FreeCaller<CamWnd_TogglePreview>(), Accelerator( GDK_F3 ) );
1890         }
1891
1892         GlobalCommands_insert( "CameraSpeedInc", FreeCaller<CameraSpeed_increase>(), Accelerator( GDK_KP_Add, (GdkModifierType)GDK_SHIFT_MASK ) );
1893         GlobalCommands_insert( "CameraSpeedDec", FreeCaller<CameraSpeed_decrease>(), Accelerator( GDK_KP_Subtract, (GdkModifierType)GDK_SHIFT_MASK ) );
1894
1895         GlobalShortcuts_insert( "CameraForward", Accelerator( GDK_Up ) );
1896         GlobalShortcuts_insert( "CameraBack", Accelerator( GDK_Down ) );
1897         GlobalShortcuts_insert( "CameraLeft", Accelerator( GDK_Left ) );
1898         GlobalShortcuts_insert( "CameraRight", Accelerator( GDK_Right ) );
1899         GlobalShortcuts_insert( "CameraStrafeRight", Accelerator( GDK_period ) );
1900         GlobalShortcuts_insert( "CameraStrafeLeft", Accelerator( GDK_comma ) );
1901
1902         GlobalShortcuts_insert( "CameraUp", Accelerator( 'D' ) );
1903         GlobalShortcuts_insert( "CameraDown", Accelerator( 'C' ) );
1904         GlobalShortcuts_insert( "CameraAngleUp", Accelerator( 'A' ) );
1905         GlobalShortcuts_insert( "CameraAngleDown", Accelerator( 'Z' ) );
1906
1907         GlobalShortcuts_insert( "CameraFreeMoveForward", Accelerator( GDK_Up ) );
1908         GlobalShortcuts_insert( "CameraFreeMoveBack", Accelerator( GDK_Down ) );
1909         GlobalShortcuts_insert( "CameraFreeMoveLeft", Accelerator( GDK_Left ) );
1910         GlobalShortcuts_insert( "CameraFreeMoveRight", Accelerator( GDK_Right ) );
1911
1912         GlobalToggles_insert( "ShowStats", ShowStatsToggleCaller(), ToggleItem::AddCallbackCaller( g_show_stats ) );
1913
1914         GlobalPreferenceSystem().registerPreference( "ShowStats", BoolImportStringCaller( g_camwindow_globals_private.m_showStats ), BoolExportStringCaller( g_camwindow_globals_private.m_showStats ) );
1915         GlobalPreferenceSystem().registerPreference( "MoveSpeed", IntImportStringCaller( g_camwindow_globals_private.m_nMoveSpeed ), IntExportStringCaller( g_camwindow_globals_private.m_nMoveSpeed ) );
1916         GlobalPreferenceSystem().registerPreference( "CamLinkSpeed", BoolImportStringCaller( g_camwindow_globals_private.m_bCamLinkSpeed ), BoolExportStringCaller( g_camwindow_globals_private.m_bCamLinkSpeed ) );
1917         GlobalPreferenceSystem().registerPreference( "AngleSpeed", IntImportStringCaller( g_camwindow_globals_private.m_nAngleSpeed ), IntExportStringCaller( g_camwindow_globals_private.m_nAngleSpeed ) );
1918         GlobalPreferenceSystem().registerPreference( "CamInverseMouse", BoolImportStringCaller( g_camwindow_globals_private.m_bCamInverseMouse ), BoolExportStringCaller( g_camwindow_globals_private.m_bCamInverseMouse ) );
1919         GlobalPreferenceSystem().registerPreference( "CamDiscrete", makeBoolStringImportCallback( CamWndMoveDiscreteImportCaller() ), BoolExportStringCaller( g_camwindow_globals_private.m_bCamDiscrete ) );
1920         GlobalPreferenceSystem().registerPreference( "CubicClipping", BoolImportStringCaller( g_camwindow_globals_private.m_bCubicClipping ), BoolExportStringCaller( g_camwindow_globals_private.m_bCubicClipping ) );
1921         GlobalPreferenceSystem().registerPreference( "CubicScale", IntImportStringCaller( g_camwindow_globals.m_nCubicScale ), IntExportStringCaller( g_camwindow_globals.m_nCubicScale ) );
1922         GlobalPreferenceSystem().registerPreference( "SI_Colors4", Vector3ImportStringCaller( g_camwindow_globals.color_cameraback ), Vector3ExportStringCaller( g_camwindow_globals.color_cameraback ) );
1923         GlobalPreferenceSystem().registerPreference( "SI_Colors12", Vector3ImportStringCaller( g_camwindow_globals.color_selbrushes3d ), Vector3ExportStringCaller( g_camwindow_globals.color_selbrushes3d ) );
1924         GlobalPreferenceSystem().registerPreference( "CameraRenderMode", makeIntStringImportCallback( RenderModeImportCaller() ), makeIntStringExportCallback( RenderModeExportCaller() ) );
1925         GlobalPreferenceSystem().registerPreference( "StrafeMode", IntImportStringCaller( g_camwindow_globals_private.m_nStrafeMode ), IntExportStringCaller( g_camwindow_globals_private.m_nStrafeMode ) );
1926
1927         CamWnd_constructStatic();
1928
1929         Camera_registerPreferencesPage();
1930 }
1931 void CamWnd_Destroy(){
1932         CamWnd_destroyStatic();
1933 }