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_get_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         GtkAllocation allocation;
 854         gtk_widget_get_allocation(widget, &allocation);
 855         return WindowVector( static_cast<float>( allocation.width / 2 ), static_cast<float>(allocation.height / 2 ) );
 856 }
 857
 858 gboolean selection_button_press_freemove( ui::Widget widget, GdkEventButton* event, WindowObserver* observer ){
 859         if ( event->type == GDK_BUTTON_PRESS ) {
 860                 observer->onMouseDown( windowvector_for_widget_centre( widget ), button_for_button( event->button ), modifiers_for_state( event->state ) );
 861         }
 862         return FALSE;
 863 }
 864
 865 gboolean selection_button_release_freemove( ui::Widget widget, GdkEventButton* event, WindowObserver* observer ){
 866         if ( event->type == GDK_BUTTON_RELEASE ) {
 867                 observer->onMouseUp( windowvector_for_widget_centre( widget ), button_for_button( event->button ), modifiers_for_state( event->state ) );
 868         }
 869         return FALSE;
 870 }
 871
 872 gboolean selection_motion_freemove( ui::Widget widget, GdkEventMotion *event, WindowObserver* observer ){
 873         observer->onMouseMotion( windowvector_for_widget_centre( widget ), modifiers_for_state( event->state ) );
 874         return FALSE;
 875 }
 876
 877 gboolean wheelmove_scroll( ui::Widget widget, GdkEventScroll* event, CamWnd* camwnd ){
 878         if ( event->direction == GDK_SCROLL_UP ) {
 879                 Camera_Freemove_updateAxes( camwnd->getCamera() );
 880                 Camera_setOrigin( *camwnd, vector3_added( Camera_getOrigin( *camwnd ), vector3_scaled( camwnd->getCamera().forward, static_cast<float>( g_camwindow_globals_private.m_nMoveSpeed ) ) ) );
 881         }
 882         else if ( event->direction == GDK_SCROLL_DOWN ) {
 883                 Camera_Freemove_updateAxes( camwnd->getCamera() );
 884                 Camera_setOrigin( *camwnd, vector3_added( Camera_getOrigin( *camwnd ), vector3_scaled( camwnd->getCamera().forward, -static_cast<float>( g_camwindow_globals_private.m_nMoveSpeed ) ) ) );
 885         }
 886
 887         return FALSE;
 888 }
 889
 890 gboolean camera_size_allocate( ui::Widget widget, GtkAllocation* allocation, CamWnd* camwnd ){
 891         camwnd->getCamera().width = allocation->width;
 892         camwnd->getCamera().height = allocation->height;
 893         Camera_updateProjection( camwnd->getCamera() );
 894         camwnd->m_window_observer->onSizeChanged( camwnd->getCamera().width, camwnd->getCamera().height );
 895         camwnd->queue_draw();
 896         return FALSE;
 897 }
 898
 899 gboolean camera_expose( ui::Widget widget, GdkEventExpose* event, gpointer data ){
 900         reinterpret_cast<CamWnd*>( data )->draw();
 901         return FALSE;
 902 }
 903
 904 void KeyEvent_connect( const char* name ){
 905         const KeyEvent& keyEvent = GlobalKeyEvents_find( name );
 906         keydown_accelerators_add( keyEvent.m_accelerator, keyEvent.m_keyDown );
 907         keyup_accelerators_add( keyEvent.m_accelerator, keyEvent.m_keyUp );
 908 }
 909
 910 void KeyEvent_disconnect( const char* name ){
 911         const KeyEvent& keyEvent = GlobalKeyEvents_find( name );
 912         keydown_accelerators_remove( keyEvent.m_accelerator );
 913         keyup_accelerators_remove( keyEvent.m_accelerator );
 914 }
 915
 916 void CamWnd_registerCommands( CamWnd& camwnd ){
 917         GlobalKeyEvents_insert( "CameraForward", Accelerator( GDK_KEY_Up ),
 918                                                         ReferenceCaller<camera_t, Camera_MoveForward_KeyDown>( camwnd.getCamera() ),
 919                                                         ReferenceCaller<camera_t, Camera_MoveForward_KeyUp>( camwnd.getCamera() )
 920                                                         );
 921         GlobalKeyEvents_insert( "CameraBack", Accelerator( GDK_KEY_Down ),
 922                                                         ReferenceCaller<camera_t, Camera_MoveBack_KeyDown>( camwnd.getCamera() ),
 923                                                         ReferenceCaller<camera_t, Camera_MoveBack_KeyUp>( camwnd.getCamera() )
 924                                                         );
 925         GlobalKeyEvents_insert( "CameraLeft", Accelerator( GDK_KEY_Left ),
 926                                                         ReferenceCaller<camera_t, Camera_RotateLeft_KeyDown>( camwnd.getCamera() ),
 927                                                         ReferenceCaller<camera_t, Camera_RotateLeft_KeyUp>( camwnd.getCamera() )
 928                                                         );
 929         GlobalKeyEvents_insert( "CameraRight", Accelerator( GDK_KEY_Right ),
 930                                                         ReferenceCaller<camera_t, Camera_RotateRight_KeyDown>( camwnd.getCamera() ),
 931                                                         ReferenceCaller<camera_t, Camera_RotateRight_KeyUp>( camwnd.getCamera() )
 932                                                         );
 933         GlobalKeyEvents_insert( "CameraStrafeRight", Accelerator( GDK_KEY_period ),
 934                                                         ReferenceCaller<camera_t, Camera_MoveRight_KeyDown>( camwnd.getCamera() ),
 935                                                         ReferenceCaller<camera_t, Camera_MoveRight_KeyUp>( camwnd.getCamera() )
 936                                                         );
 937         GlobalKeyEvents_insert( "CameraStrafeLeft", Accelerator( GDK_KEY_comma ),
 938                                                         ReferenceCaller<camera_t, Camera_MoveLeft_KeyDown>( camwnd.getCamera() ),
 939                                                         ReferenceCaller<camera_t, Camera_MoveLeft_KeyUp>( camwnd.getCamera() )
 940                                                         );
 941         GlobalKeyEvents_insert( "CameraUp", Accelerator( 'D' ),
 942                                                         ReferenceCaller<camera_t, Camera_MoveUp_KeyDown>( camwnd.getCamera() ),
 943                                                         ReferenceCaller<camera_t, Camera_MoveUp_KeyUp>( camwnd.getCamera() )
 944                                                         );
 945         GlobalKeyEvents_insert( "CameraDown", Accelerator( 'C' ),
 946                                                         ReferenceCaller<camera_t, Camera_MoveDown_KeyDown>( camwnd.getCamera() ),
 947                                                         ReferenceCaller<camera_t, Camera_MoveDown_KeyUp>( camwnd.getCamera() )
 948                                                         );
 949         GlobalKeyEvents_insert( "CameraAngleDown", Accelerator( 'A' ),
 950                                                         ReferenceCaller<camera_t, Camera_PitchDown_KeyDown>( camwnd.getCamera() ),
 951                                                         ReferenceCaller<camera_t, Camera_PitchDown_KeyUp>( camwnd.getCamera() )
 952                                                         );
 953         GlobalKeyEvents_insert( "CameraAngleUp", Accelerator( 'Z' ),
 954                                                         ReferenceCaller<camera_t, Camera_PitchUp_KeyDown>( camwnd.getCamera() ),
 955                                                         ReferenceCaller<camera_t, Camera_PitchUp_KeyUp>( camwnd.getCamera() )
 956                                                         );
 957
 958         GlobalKeyEvents_insert( "CameraFreeMoveForward", Accelerator( GDK_Up ),
 959                                                         FreeMoveCameraMoveForwardKeyDownCaller( camwnd.getCamera() ),
 960                                                         FreeMoveCameraMoveForwardKeyUpCaller( camwnd.getCamera() )
 961                                                         );
 962         GlobalKeyEvents_insert( "CameraFreeMoveBack", Accelerator( GDK_Down ),
 963                                                         FreeMoveCameraMoveBackKeyDownCaller( camwnd.getCamera() ),
 964                                                         FreeMoveCameraMoveBackKeyUpCaller( camwnd.getCamera() )
 965                                                         );
 966         GlobalKeyEvents_insert( "CameraFreeMoveLeft", Accelerator( GDK_Left ),
 967                                                         FreeMoveCameraMoveLeftKeyDownCaller( camwnd.getCamera() ),
 968                                                         FreeMoveCameraMoveLeftKeyUpCaller( camwnd.getCamera() )
 969                                                         );
 970         GlobalKeyEvents_insert( "CameraFreeMoveRight", Accelerator( GDK_Right ),
 971                                                         FreeMoveCameraMoveRightKeyDownCaller( camwnd.getCamera() ),
 972                                                         FreeMoveCameraMoveRightKeyUpCaller( camwnd.getCamera() )
 973                                                         );
 974         GlobalKeyEvents_insert( "CameraFreeMoveUp", Accelerator( 'D' ),
 975                                                         FreeMoveCameraMoveUpKeyDownCaller( camwnd.getCamera() ),
 976                                                         FreeMoveCameraMoveUpKeyUpCaller( camwnd.getCamera() )
 977                                                         );
 978         GlobalKeyEvents_insert( "CameraFreeMoveDown", Accelerator( 'C' ),
 979                                                         FreeMoveCameraMoveDownKeyDownCaller( camwnd.getCamera() ),
 980                                                         FreeMoveCameraMoveDownKeyUpCaller( camwnd.getCamera() )
 981                                                         );
 982
 983         GlobalCommands_insert( "CameraForward", ReferenceCaller<camera_t, Camera_MoveForward_Discrete>( camwnd.getCamera() ), Accelerator( GDK_Up ) );
 984         GlobalCommands_insert( "CameraBack", ReferenceCaller<camera_t, Camera_MoveBack_Discrete>( camwnd.getCamera() ), Accelerator( GDK_Down ) );
 985         GlobalCommands_insert( "CameraLeft", ReferenceCaller<camera_t, Camera_RotateLeft_Discrete>( camwnd.getCamera() ), Accelerator( GDK_Left ) );
 986         GlobalCommands_insert( "CameraRight", ReferenceCaller<camera_t, Camera_RotateRight_Discrete>( camwnd.getCamera() ), Accelerator( GDK_Right ) );
 987         GlobalCommands_insert( "CameraStrafeRight", ReferenceCaller<camera_t, Camera_MoveRight_Discrete>( camwnd.getCamera() ), Accelerator( GDK_period ) );
 988         GlobalCommands_insert( "CameraStrafeLeft", ReferenceCaller<camera_t, Camera_MoveLeft_Discrete>( camwnd.getCamera() ), Accelerator( GDK_comma ) );
 989
 990         GlobalCommands_insert( "CameraUp", ReferenceCaller<camera_t, Camera_MoveUp_Discrete>( camwnd.getCamera() ), Accelerator( 'D' ) );
 991         GlobalCommands_insert( "CameraDown", ReferenceCaller<camera_t, Camera_MoveDown_Discrete>( camwnd.getCamera() ), Accelerator( 'C' ) );
 992         GlobalCommands_insert( "CameraAngleUp", ReferenceCaller<camera_t, Camera_PitchUp_Discrete>( camwnd.getCamera() ), Accelerator( 'A' ) );
 993         GlobalCommands_insert( "CameraAngleDown", ReferenceCaller<camera_t, Camera_PitchDown_Discrete>( camwnd.getCamera() ), Accelerator( 'Z' ) );
 994 }
 995
 996 void CamWnd_Move_Enable( CamWnd& camwnd ){
 997         KeyEvent_connect( "CameraForward" );
 998         KeyEvent_connect( "CameraBack" );
 999         KeyEvent_connect( "CameraLeft" );
1000         KeyEvent_connect( "CameraRight" );
1001         KeyEvent_connect( "CameraStrafeRight" );
1002         KeyEvent_connect( "CameraStrafeLeft" );
1003         KeyEvent_connect( "CameraUp" );
1004         KeyEvent_connect( "CameraDown" );
1005         KeyEvent_connect( "CameraAngleUp" );
1006         KeyEvent_connect( "CameraAngleDown" );
1007 }
1008
1009 void CamWnd_Move_Disable( CamWnd& camwnd ){
1010         KeyEvent_disconnect( "CameraForward" );
1011         KeyEvent_disconnect( "CameraBack" );
1012         KeyEvent_disconnect( "CameraLeft" );
1013         KeyEvent_disconnect( "CameraRight" );
1014         KeyEvent_disconnect( "CameraStrafeRight" );
1015         KeyEvent_disconnect( "CameraStrafeLeft" );
1016         KeyEvent_disconnect( "CameraUp" );
1017         KeyEvent_disconnect( "CameraDown" );
1018         KeyEvent_disconnect( "CameraAngleUp" );
1019         KeyEvent_disconnect( "CameraAngleDown" );
1020 }
1021
1022 void CamWnd_Move_Discrete_Enable( CamWnd& camwnd ){
1023         command_connect_accelerator( "CameraForward" );
1024         command_connect_accelerator( "CameraBack" );
1025         command_connect_accelerator( "CameraLeft" );
1026         command_connect_accelerator( "CameraRight" );
1027         command_connect_accelerator( "CameraStrafeRight" );
1028         command_connect_accelerator( "CameraStrafeLeft" );
1029         command_connect_accelerator( "CameraUp" );
1030         command_connect_accelerator( "CameraDown" );
1031         command_connect_accelerator( "CameraAngleUp" );
1032         command_connect_accelerator( "CameraAngleDown" );
1033 }
1034
1035 void CamWnd_Move_Discrete_Disable( CamWnd& camwnd ){
1036         command_disconnect_accelerator( "CameraForward" );
1037         command_disconnect_accelerator( "CameraBack" );
1038         command_disconnect_accelerator( "CameraLeft" );
1039         command_disconnect_accelerator( "CameraRight" );
1040         command_disconnect_accelerator( "CameraStrafeRight" );
1041         command_disconnect_accelerator( "CameraStrafeLeft" );
1042         command_disconnect_accelerator( "CameraUp" );
1043         command_disconnect_accelerator( "CameraDown" );
1044         command_disconnect_accelerator( "CameraAngleUp" );
1045         command_disconnect_accelerator( "CameraAngleDown" );
1046 }
1047
1048 void CamWnd_Move_Discrete_Import( CamWnd& camwnd, bool value ){
1049         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1050                 CamWnd_Move_Discrete_Disable( camwnd );
1051         }
1052         else
1053         {
1054                 CamWnd_Move_Disable( camwnd );
1055         }
1056
1057         g_camwindow_globals_private.m_bCamDiscrete = value;
1058
1059         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1060                 CamWnd_Move_Discrete_Enable( camwnd );
1061         }
1062         else
1063         {
1064                 CamWnd_Move_Enable( camwnd );
1065         }
1066 }
1067
1068 void CamWnd_Move_Discrete_Import( bool value ){
1069         if ( g_camwnd != 0 ) {
1070                 CamWnd_Move_Discrete_Import( *g_camwnd, value );
1071         }
1072         else
1073         {
1074                 g_camwindow_globals_private.m_bCamDiscrete = value;
1075         }
1076 }
1077
1078
1079
1080 void CamWnd_Add_Handlers_Move( CamWnd& camwnd ){
1081         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 );
1082         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 );
1083         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 );
1084
1085         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 );
1086
1087         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1088                 CamWnd_Move_Discrete_Enable( camwnd );
1089         }
1090         else
1091         {
1092                 CamWnd_Move_Enable( camwnd );
1093         }
1094 }
1095
1096 void CamWnd_Remove_Handlers_Move( CamWnd& camwnd ){
1097         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_press_handler );
1098         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_release_handler );
1099         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_motion_handler );
1100
1101         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_freelook_button_press_handler );
1102
1103         if ( g_camwindow_globals_private.m_bCamDiscrete ) {
1104                 CamWnd_Move_Discrete_Disable( camwnd );
1105         }
1106         else
1107         {
1108                 CamWnd_Move_Disable( camwnd );
1109         }
1110 }
1111
1112 void CamWnd_Add_Handlers_FreeMove( CamWnd& camwnd ){
1113         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 );
1114         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 );
1115         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 );
1116
1117         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 );
1118
1119         KeyEvent_connect( "CameraFreeMoveForward" );
1120         KeyEvent_connect( "CameraFreeMoveBack" );
1121         KeyEvent_connect( "CameraFreeMoveLeft" );
1122         KeyEvent_connect( "CameraFreeMoveRight" );
1123         KeyEvent_connect( "CameraFreeMoveUp" );
1124         KeyEvent_connect( "CameraFreeMoveDown" );
1125 }
1126
1127 void CamWnd_Remove_Handlers_FreeMove( CamWnd& camwnd ){
1128         KeyEvent_disconnect( "CameraFreeMoveForward" );
1129         KeyEvent_disconnect( "CameraFreeMoveBack" );
1130         KeyEvent_disconnect( "CameraFreeMoveLeft" );
1131         KeyEvent_disconnect( "CameraFreeMoveRight" );
1132         KeyEvent_disconnect( "CameraFreeMoveUp" );
1133         KeyEvent_disconnect( "CameraFreeMoveDown" );
1134
1135         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_press_handler );
1136         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_button_release_handler );
1137         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_selection_motion_handler );
1138
1139         g_signal_handler_disconnect( G_OBJECT( camwnd.m_gl_widget ), camwnd.m_freelook_button_press_handler );
1140 }
1141
1142 CamWnd::CamWnd() :
1143         m_view( true ),
1144         m_Camera( &m_view, CamWndQueueDraw( *this ) ),
1145         m_cameraview( m_Camera, &m_view, ReferenceCaller<CamWnd, CamWnd_Update>( *this ) ),
1146         m_gl_widget( ui::Widget(glwidget_new( TRUE )) ),
1147         m_window_observer( NewWindowObserver() ),
1148         m_XORRectangle( m_gl_widget ),
1149         m_deferredDraw( WidgetQueueDrawCaller( *m_gl_widget ) ),
1150         m_deferred_motion( selection_motion, m_window_observer ),
1151         m_selection_button_press_handler( 0 ),
1152         m_selection_button_release_handler( 0 ),
1153         m_selection_motion_handler( 0 ),
1154         m_freelook_button_press_handler( 0 ),
1155         m_drawing( false ){
1156         m_bFreeMove = false;
1157
1158         GlobalWindowObservers_add( m_window_observer );
1159         GlobalWindowObservers_connectWidget( m_gl_widget );
1160
1161         m_window_observer->setRectangleDrawCallback( ReferenceCaller1<CamWnd, rect_t, camwnd_update_xor_rectangle>( *this ) );
1162         m_window_observer->setView( m_view );
1163
1164         g_object_ref( m_gl_widget );
1165
1166         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 );
1167         gtk_widget_set_can_focus( m_gl_widget, true );
1168
1169         m_sizeHandler = g_signal_connect( G_OBJECT( m_gl_widget ), "size_allocate", G_CALLBACK( camera_size_allocate ), this );
1170         m_exposeHandler = g_signal_connect( G_OBJECT( m_gl_widget ), "expose_event", G_CALLBACK( camera_expose ), this );
1171
1172         Map_addValidCallback( g_map, DeferredDrawOnMapValidChangedCaller( m_deferredDraw ) );
1173
1174         CamWnd_registerCommands( *this );
1175
1176         CamWnd_Add_Handlers_Move( *this );
1177
1178         g_signal_connect( G_OBJECT( m_gl_widget ), "scroll_event", G_CALLBACK( wheelmove_scroll ), this );
1179
1180         AddSceneChangeCallback( ReferenceCaller<CamWnd, CamWnd_Update>( *this ) );
1181
1182         PressedButtons_connect( g_pressedButtons, m_gl_widget );
1183 }
1184
1185 CamWnd::~CamWnd(){
1186         if ( m_bFreeMove ) {
1187                 DisableFreeMove();
1188         }
1189
1190         CamWnd_Remove_Handlers_Move( *this );
1191
1192         g_signal_handler_disconnect( G_OBJECT( m_gl_widget ), m_sizeHandler );
1193         g_signal_handler_disconnect( G_OBJECT( m_gl_widget ), m_exposeHandler );
1194
1195         g_object_unref( m_gl_widget );
1196
1197         m_window_observer->release();
1198 }
1199
1200 class FloorHeightWalker : public scene::Graph::Walker
1201 {
1202 float m_current;
1203 float& m_bestUp;
1204 float& m_bestDown;
1205 public:
1206 FloorHeightWalker( float current, float& bestUp, float& bestDown ) :
1207         m_current( current ), m_bestUp( bestUp ), m_bestDown( bestDown ){
1208         bestUp = g_MaxWorldCoord;
1209         bestDown = -g_MaxWorldCoord;
1210 }
1211 bool pre( const scene::Path& path, scene::Instance& instance ) const {
1212         if ( path.top().get().visible()
1213                  && Node_isBrush( path.top() ) ) { // this node is a floor
1214                 const AABB& aabb = instance.worldAABB();
1215                 float floorHeight = aabb.origin.z() + aabb.extents.z();
1216                 if ( floorHeight > m_current && floorHeight < m_bestUp ) {
1217                         m_bestUp = floorHeight;
1218                 }
1219                 if ( floorHeight < m_current && floorHeight > m_bestDown ) {
1220                         m_bestDown = floorHeight;
1221                 }
1222         }
1223         return true;
1224 }
1225 };
1226
1227 void CamWnd::Cam_ChangeFloor( bool up ){
1228         float current = m_Camera.origin[2] - 48;
1229         float bestUp;
1230         float bestDown;
1231         GlobalSceneGraph().traverse( FloorHeightWalker( current, bestUp, bestDown ) );
1232
1233         if ( up && bestUp != g_MaxWorldCoord ) {
1234                 current = bestUp;
1235         }
1236         if ( !up && bestDown != -g_MaxWorldCoord ) {
1237                 current = bestDown;
1238         }
1239
1240         m_Camera.origin[2] = current + 48;
1241         Camera_updateModelview( getCamera() );
1242         CamWnd_Update( *this );
1243         CameraMovedNotify();
1244 }
1245
1246
1247 #if 0
1248
1249 // button_press
1250 Sys_GetCursorPos( &m_PositionDragCursorX, &m_PositionDragCursorY );
1251
1252 // motion
1253 if ( ( m_bFreeMove && ( buttons == ( RAD_CONTROL | RAD_SHIFT ) ) )
1254          || ( !m_bFreeMove && ( buttons == ( RAD_RBUTTON | RAD_CONTROL ) ) ) ) {
1255         Cam_PositionDrag();
1256         CamWnd_Update( camwnd );
1257         CameraMovedNotify();
1258         return;
1259 }
1260
1261 void CamWnd::Cam_PositionDrag(){
1262         int x, y;
1263
1264         Sys_GetCursorPos( GTK_WINDOW( m_gl_widget ), &x, &y );
1265         if ( x != m_PositionDragCursorX || y != m_PositionDragCursorY ) {
1266                 x -= m_PositionDragCursorX;
1267                 vector3_add( m_Camera.origin, vector3_scaled( m_Camera.vright, x ) );
1268                 y -= m_PositionDragCursorY;
1269                 m_Camera.origin[2] -= y;
1270                 Camera_updateModelview();
1271                 CamWnd_Update( camwnd );
1272                 CameraMovedNotify();
1273
1274                 Sys_SetCursorPos( GTK_WINDOW( m_parent ), m_PositionDragCursorX, m_PositionDragCursorY );
1275         }
1276 }
1277 #endif
1278
1279
1280 // NOTE TTimo if there's an OS-level focus out of the application
1281 //   then we can release the camera cursor grab
1282 static gboolean camwindow_freemove_focusout( ui::Widget widget, GdkEventFocus* event, gpointer data ){
1283         reinterpret_cast<CamWnd*>( data )->DisableFreeMove();
1284         return FALSE;
1285 }
1286
1287 void CamWnd::EnableFreeMove(){
1288         //globalOutputStream() << "EnableFreeMove\n";
1289
1290         ASSERT_MESSAGE( !m_bFreeMove, "EnableFreeMove: free-move was already enabled" );
1291         m_bFreeMove = true;
1292         Camera_clearMovementFlags( getCamera(), MOVE_ALL );
1293
1294         CamWnd_Remove_Handlers_Move( *this );
1295         CamWnd_Add_Handlers_FreeMove( *this );
1296
1297         gtk_window_set_focus( m_parent, m_gl_widget );
1298         m_freemove_handle_focusout = g_signal_connect( G_OBJECT( m_gl_widget ), "focus_out_event", G_CALLBACK( camwindow_freemove_focusout ), this );
1299         m_freezePointer.freeze_pointer( m_parent, Camera_motionDelta, &m_Camera );
1300
1301         CamWnd_Update( *this );
1302 }
1303
1304 void CamWnd::DisableFreeMove(){
1305         //globalOutputStream() << "DisableFreeMove\n";
1306
1307         ASSERT_MESSAGE( m_bFreeMove, "DisableFreeMove: free-move was not enabled" );
1308         m_bFreeMove = false;
1309         Camera_clearMovementFlags( getCamera(), MOVE_ALL );
1310
1311         CamWnd_Remove_Handlers_FreeMove( *this );
1312         CamWnd_Add_Handlers_Move( *this );
1313
1314         m_freezePointer.unfreeze_pointer( m_parent );
1315         g_signal_handler_disconnect( G_OBJECT( m_gl_widget ), m_freemove_handle_focusout );
1316
1317         CamWnd_Update( *this );
1318 }
1319
1320
1321 #include "renderer.h"
1322
1323 class CamRenderer : public Renderer
1324 {
1325 struct state_type
1326 {
1327         state_type() : m_highlight( 0 ), m_state( 0 ), m_lights( 0 ){
1328         }
1329         unsigned int m_highlight;
1330         Shader* m_state;
1331         const LightList* m_lights;
1332 };
1333
1334 std::vector<state_type> m_state_stack;
1335 RenderStateFlags m_globalstate;
1336 Shader* m_state_select0;
1337 Shader* m_state_select1;
1338 const Vector3& m_viewer;
1339
1340 public:
1341 CamRenderer( RenderStateFlags globalstate, Shader* select0, Shader* select1, const Vector3& viewer ) :
1342         m_globalstate( globalstate ),
1343         m_state_select0( select0 ),
1344         m_state_select1( select1 ),
1345         m_viewer( viewer ){
1346         ASSERT_NOTNULL( select0 );
1347         ASSERT_NOTNULL( select1 );
1348         m_state_stack.push_back( state_type() );
1349 }
1350
1351 void SetState( Shader* state, EStyle style ){
1352         ASSERT_NOTNULL( state );
1353         if ( style == eFullMaterials ) {
1354                 m_state_stack.back().m_state = state;
1355         }
1356 }
1357 EStyle getStyle() const {
1358         return eFullMaterials;
1359 }
1360 void PushState(){
1361         m_state_stack.push_back( m_state_stack.back() );
1362 }
1363 void PopState(){
1364         ASSERT_MESSAGE( !m_state_stack.empty(), "popping empty stack" );
1365         m_state_stack.pop_back();
1366 }
1367 void Highlight( EHighlightMode mode, bool bEnable = true ){
1368         ( bEnable )
1369         ? m_state_stack.back().m_highlight |= mode
1370                                                                                   : m_state_stack.back().m_highlight &= ~mode;
1371 }
1372 void setLights( const LightList& lights ){
1373         m_state_stack.back().m_lights = &lights;
1374 }
1375 void addRenderable( const OpenGLRenderable& renderable, const Matrix4& world ){
1376         if ( m_state_stack.back().m_highlight & ePrimitive ) {
1377                 m_state_select0->addRenderable( renderable, world, m_state_stack.back().m_lights );
1378         }
1379         if ( m_state_stack.back().m_highlight & eFace ) {
1380                 m_state_select1->addRenderable( renderable, world, m_state_stack.back().m_lights );
1381         }
1382
1383         m_state_stack.back().m_state->addRenderable( renderable, world, m_state_stack.back().m_lights );
1384 }
1385
1386 void render( const Matrix4& modelview, const Matrix4& projection ){
1387         GlobalShaderCache().render( m_globalstate, modelview, projection, m_viewer );
1388 }
1389 };
1390
1391 /*
1392    ==============
1393    Cam_Draw
1394    ==============
1395  */
1396
1397 void ShowStatsToggle(){
1398         g_camwindow_globals_private.m_showStats ^= 1;
1399 }
1400 typedef FreeCaller<ShowStatsToggle> ShowStatsToggleCaller;
1401
1402 void ShowStatsExport( const BoolImportCallback& importer ){
1403         importer( g_camwindow_globals_private.m_showStats );
1404 }
1405 typedef FreeCaller1<const BoolImportCallback&, ShowStatsExport> ShowStatsExportCaller;
1406
1407 ShowStatsExportCaller g_show_stats_caller;
1408 BoolExportCallback g_show_stats_callback( g_show_stats_caller );
1409 ToggleItem g_show_stats( g_show_stats_callback );
1410
1411 void CamWnd::Cam_Draw(){
1412         glViewport( 0, 0, m_Camera.width, m_Camera.height );
1413 #if 0
1414         GLint viewprt[4];
1415         glGetIntegerv( GL_VIEWPORT, viewprt );
1416 #endif
1417
1418         // enable depth buffer writes
1419         glDepthMask( GL_TRUE );
1420         glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
1421
1422         Vector3 clearColour( 0, 0, 0 );
1423         if ( m_Camera.draw_mode != cd_lighting ) {
1424                 clearColour = g_camwindow_globals.color_cameraback;
1425         }
1426
1427         glClearColor( clearColour[0], clearColour[1], clearColour[2], 0 );
1428         glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
1429
1430         extern void Renderer_ResetStats();
1431         Renderer_ResetStats();
1432         extern void Cull_ResetStats();
1433         Cull_ResetStats();
1434
1435         glMatrixMode( GL_PROJECTION );
1436         glLoadMatrixf( reinterpret_cast<const float*>( &m_Camera.projection ) );
1437
1438         glMatrixMode( GL_MODELVIEW );
1439         glLoadMatrixf( reinterpret_cast<const float*>( &m_Camera.modelview ) );
1440
1441
1442         // one directional light source directly behind the viewer
1443         {
1444                 GLfloat inverse_cam_dir[4], ambient[4], diffuse[4]; //, material[4];
1445
1446                 ambient[0] = ambient[1] = ambient[2] = 0.4f;
1447                 ambient[3] = 1.0f;
1448                 diffuse[0] = diffuse[1] = diffuse[2] = 0.4f;
1449                 diffuse[3] = 1.0f;
1450                 //material[0] = material[1] = material[2] = 0.8f;
1451                 //material[3] = 1.0f;
1452
1453                 inverse_cam_dir[0] = m_Camera.vpn[0];
1454                 inverse_cam_dir[1] = m_Camera.vpn[1];
1455                 inverse_cam_dir[2] = m_Camera.vpn[2];
1456                 inverse_cam_dir[3] = 0;
1457
1458                 glLightfv( GL_LIGHT0, GL_POSITION, inverse_cam_dir );
1459
1460                 glLightfv( GL_LIGHT0, GL_AMBIENT, ambient );
1461                 glLightfv( GL_LIGHT0, GL_DIFFUSE, diffuse );
1462
1463                 glEnable( GL_LIGHT0 );
1464         }
1465
1466
1467         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;
1468         switch ( m_Camera.draw_mode )
1469         {
1470         case cd_wire:
1471                 break;
1472         case cd_solid:
1473                 globalstate |= RENDER_FILL
1474                                            | RENDER_LIGHTING
1475                                            | RENDER_SMOOTH
1476                                            | RENDER_SCALED;
1477                 break;
1478         case cd_texture:
1479                 globalstate |= RENDER_FILL
1480                                            | RENDER_LIGHTING
1481                                            | RENDER_TEXTURE
1482                                            | RENDER_SMOOTH
1483                                            | RENDER_SCALED;
1484                 break;
1485         case cd_lighting:
1486                 globalstate |= RENDER_FILL
1487                                            | RENDER_LIGHTING
1488                                            | RENDER_TEXTURE
1489                                            | RENDER_SMOOTH
1490                                            | RENDER_SCALED
1491                                            | RENDER_BUMP
1492                                            | RENDER_PROGRAM
1493                                            | RENDER_SCREEN;
1494                 break;
1495         default:
1496                 globalstate = 0;
1497                 break;
1498         }
1499
1500         if ( !g_xywindow_globals.m_bNoStipple ) {
1501                 globalstate |= RENDER_LINESTIPPLE | RENDER_POLYGONSTIPPLE;
1502         }
1503
1504         {
1505                 CamRenderer renderer( globalstate, m_state_select2, m_state_select1, m_view.getViewer() );
1506
1507                 Scene_Render( renderer, m_view );
1508
1509                 renderer.render( m_Camera.modelview, m_Camera.projection );
1510         }
1511
1512         // prepare for 2d stuff
1513         glColor4f( 1, 1, 1, 1 );
1514         glDisable( GL_BLEND );
1515         glMatrixMode( GL_PROJECTION );
1516         glLoadIdentity();
1517         glOrtho( 0, (float)m_Camera.width, 0, (float)m_Camera.height, -100, 100 );
1518         glScalef( 1, -1, 1 );
1519         glTranslatef( 0, -(float)m_Camera.height, 0 );
1520         glMatrixMode( GL_MODELVIEW );
1521         glLoadIdentity();
1522
1523         if ( GlobalOpenGL().GL_1_3() ) {
1524                 glClientActiveTexture( GL_TEXTURE0 );
1525                 glActiveTexture( GL_TEXTURE0 );
1526         }
1527
1528         glDisableClientState( GL_TEXTURE_COORD_ARRAY );
1529         glDisableClientState( GL_NORMAL_ARRAY );
1530         glDisableClientState( GL_COLOR_ARRAY );
1531
1532         glDisable( GL_TEXTURE_2D );
1533         glDisable( GL_LIGHTING );
1534         glDisable( GL_COLOR_MATERIAL );
1535         glDisable( GL_DEPTH_TEST );
1536         glColor3f( 1.f, 1.f, 1.f );
1537         glLineWidth( 1 );
1538
1539         // draw the crosshair
1540         if ( m_bFreeMove ) {
1541                 glBegin( GL_LINES );
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, (float)m_Camera.height / 2.f - 6 );
1545                 glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f - 2 );
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                 glVertex2f( (float)m_Camera.width / 2.f - 6, (float)m_Camera.height / 2.f );
1549                 glVertex2f( (float)m_Camera.width / 2.f - 2, (float)m_Camera.height / 2.f );
1550                 glEnd();
1551         }
1552
1553         if ( g_camwindow_globals_private.m_showStats ) {
1554                 glRasterPos3f( 1.0f, static_cast<float>( m_Camera.height ) - GlobalOpenGL().m_font->getPixelDescent(), 0.0f );
1555                 extern const char* Renderer_GetStats();
1556                 GlobalOpenGL().drawString( Renderer_GetStats() );
1557
1558                 glRasterPos3f( 1.0f, static_cast<float>( m_Camera.height ) - GlobalOpenGL().m_font->getPixelDescent() - GlobalOpenGL().m_font->getPixelHeight(), 0.0f );
1559                 extern const char* Cull_GetStats();
1560                 GlobalOpenGL().drawString( Cull_GetStats() );
1561         }
1562
1563         // bind back to the default texture so that we don't have problems
1564         // elsewhere using/modifying texture maps between contexts
1565         glBindTexture( GL_TEXTURE_2D, 0 );
1566 }
1567
1568 void CamWnd::draw(){
1569         m_drawing = true;
1570
1571         //globalOutputStream() << "draw...\n";
1572         if ( glwidget_make_current( m_gl_widget ) != FALSE ) {
1573                 if ( Map_Valid( g_map ) && ScreenUpdates_Enabled() ) {
1574                         GlobalOpenGL_debugAssertNoErrors();
1575                         Cam_Draw();
1576                         GlobalOpenGL_debugAssertNoErrors();
1577                         //qglFinish();
1578
1579                         m_XORRectangle.set( rectangle_t() );
1580                 }
1581
1582                 glwidget_swap_buffers( m_gl_widget );
1583         }
1584
1585         m_drawing = false;
1586 }
1587
1588 void CamWnd::BenchMark(){
1589         double dStart = Sys_DoubleTime();
1590         for ( int i = 0 ; i < 100 ; i++ )
1591         {
1592                 Vector3 angles;
1593                 angles[CAMERA_ROLL] = 0;
1594                 angles[CAMERA_PITCH] = 0;
1595                 angles[CAMERA_YAW] = static_cast<float>( i * ( 360.0 / 100.0 ) );
1596                 Camera_setAngles( *this, angles );
1597         }
1598         double dEnd = Sys_DoubleTime();
1599         globalOutputStream() << FloatFormat( dEnd - dStart, 5, 2 ) << " seconds\n";
1600 }
1601
1602
1603 void fill_view_camera_menu( GtkMenu* menu ){
1604         create_check_menu_item_with_mnemonic( menu, "Camera View", "ToggleCamera" );
1605 }
1606
1607 void GlobalCamera_ResetAngles(){
1608         CamWnd& camwnd = *g_camwnd;
1609         Vector3 angles;
1610         angles[CAMERA_ROLL] = angles[CAMERA_PITCH] = 0;
1611         angles[CAMERA_YAW] = static_cast<float>( 22.5 * floor( ( Camera_getAngles( camwnd )[CAMERA_YAW] + 11 ) / 22.5 ) );
1612         Camera_setAngles( camwnd, angles );
1613 }
1614
1615 void Camera_ChangeFloorUp(){
1616         CamWnd& camwnd = *g_camwnd;
1617         camwnd.Cam_ChangeFloor( true );
1618 }
1619
1620 void Camera_ChangeFloorDown(){
1621         CamWnd& camwnd = *g_camwnd;
1622         camwnd.Cam_ChangeFloor( false );
1623 }
1624
1625 void Camera_CubeIn(){
1626         CamWnd& camwnd = *g_camwnd;
1627         g_camwindow_globals.m_nCubicScale--;
1628         if ( g_camwindow_globals.m_nCubicScale < 1 ) {
1629                 g_camwindow_globals.m_nCubicScale = 1;
1630         }
1631         Camera_updateProjection( camwnd.getCamera() );
1632         CamWnd_Update( camwnd );
1633         g_pParentWnd->SetGridStatus();
1634 }
1635
1636 void Camera_CubeOut(){
1637         CamWnd& camwnd = *g_camwnd;
1638         g_camwindow_globals.m_nCubicScale++;
1639         if ( g_camwindow_globals.m_nCubicScale > 23 ) {
1640                 g_camwindow_globals.m_nCubicScale = 23;
1641         }
1642         Camera_updateProjection( camwnd.getCamera() );
1643         CamWnd_Update( camwnd );
1644         g_pParentWnd->SetGridStatus();
1645 }
1646
1647 bool Camera_GetFarClip(){
1648         return g_camwindow_globals_private.m_bCubicClipping;
1649 }
1650
1651 BoolExportCaller g_getfarclip_caller( g_camwindow_globals_private.m_bCubicClipping );
1652 ToggleItem g_getfarclip_item( g_getfarclip_caller );
1653
1654 void Camera_SetFarClip( bool value ){
1655         CamWnd& camwnd = *g_camwnd;
1656         g_camwindow_globals_private.m_bCubicClipping = value;
1657         g_getfarclip_item.update();
1658         Camera_updateProjection( camwnd.getCamera() );
1659         CamWnd_Update( camwnd );
1660 }
1661
1662 void Camera_ToggleFarClip(){
1663         Camera_SetFarClip( !Camera_GetFarClip() );
1664 }
1665
1666
1667 void CamWnd_constructToolbar( GtkToolbar* toolbar ){
1668         toolbar_append_toggle_button( toolbar, "Cubic clip the camera view (\\)", "view_cubicclipping.png", "ToggleCubicClip" );
1669 }
1670
1671 void CamWnd_registerShortcuts(){
1672         toggle_add_accelerator( "ToggleCubicClip" );
1673
1674         if ( g_pGameDescription->mGameType == "doom3" ) {
1675                 command_connect_accelerator( "TogglePreview" );
1676         }
1677
1678         command_connect_accelerator( "CameraSpeedInc" );
1679         command_connect_accelerator( "CameraSpeedDec" );
1680 }
1681
1682
1683 void GlobalCamera_Benchmark(){
1684         CamWnd& camwnd = *g_camwnd;
1685         camwnd.BenchMark();
1686 }
1687
1688 void GlobalCamera_Update(){
1689         CamWnd& camwnd = *g_camwnd;
1690         CamWnd_Update( camwnd );
1691 }
1692
1693 camera_draw_mode CamWnd_GetMode(){
1694         return camera_t::draw_mode;
1695 }
1696 void CamWnd_SetMode( camera_draw_mode mode ){
1697         ShaderCache_setBumpEnabled( mode == cd_lighting );
1698         camera_t::draw_mode = mode;
1699         if ( g_camwnd != 0 ) {
1700                 CamWnd_Update( *g_camwnd );
1701         }
1702 }
1703
1704 void CamWnd_TogglePreview( void ){
1705         // gametype must be doom3 for this function to work
1706         // if the gametype is not doom3 something is wrong with the
1707         // global command list or somebody else calls this function.
1708         ASSERT_MESSAGE( g_pGameDescription->mGameType == "doom3", "CamWnd_TogglePreview called although mGameType is not doom3 compatible" );
1709
1710         // switch between textured and lighting mode
1711         CamWnd_SetMode( ( CamWnd_GetMode() == cd_lighting ) ? cd_texture : cd_lighting );
1712 }
1713
1714
1715 CameraModel* g_camera_model = 0;
1716
1717 void CamWnd_LookThroughCamera( CamWnd& camwnd ){
1718         if ( g_camera_model != 0 ) {
1719                 CamWnd_Add_Handlers_Move( camwnd );
1720                 g_camera_model->setCameraView( 0, Callback() );
1721                 g_camera_model = 0;
1722                 Camera_updateModelview( camwnd.getCamera() );
1723                 Camera_updateProjection( camwnd.getCamera() );
1724                 CamWnd_Update( camwnd );
1725         }
1726 }
1727
1728 inline CameraModel* Instance_getCameraModel( scene::Instance& instance ){
1729         return InstanceTypeCast<CameraModel>::cast( instance );
1730 }
1731
1732 void CamWnd_LookThroughSelected( CamWnd& camwnd ){
1733         if ( g_camera_model != 0 ) {
1734                 CamWnd_LookThroughCamera( camwnd );
1735         }
1736
1737         if ( GlobalSelectionSystem().countSelected() != 0 ) {
1738                 scene::Instance& instance = GlobalSelectionSystem().ultimateSelected();
1739                 CameraModel* cameraModel = Instance_getCameraModel( instance );
1740                 if ( cameraModel != 0 ) {
1741                         CamWnd_Remove_Handlers_Move( camwnd );
1742                         g_camera_model = cameraModel;
1743                         g_camera_model->setCameraView( &camwnd.getCameraView(), ReferenceCaller<CamWnd, CamWnd_LookThroughCamera>( camwnd ) );
1744                 }
1745         }
1746 }
1747
1748 void GlobalCamera_LookThroughSelected(){
1749         CamWnd_LookThroughSelected( *g_camwnd );
1750 }
1751
1752 void GlobalCamera_LookThroughCamera(){
1753         CamWnd_LookThroughCamera( *g_camwnd );
1754 }
1755
1756
1757 void RenderModeImport( int value ){
1758         switch ( value )
1759         {
1760         case 0:
1761                 CamWnd_SetMode( cd_wire );
1762                 break;
1763         case 1:
1764                 CamWnd_SetMode( cd_solid );
1765                 break;
1766         case 2:
1767                 CamWnd_SetMode( cd_texture );
1768                 break;
1769         case 3:
1770                 CamWnd_SetMode( cd_lighting );
1771                 break;
1772         default:
1773                 CamWnd_SetMode( cd_texture );
1774         }
1775 }
1776 typedef FreeCaller1<int, RenderModeImport> RenderModeImportCaller;
1777
1778 void RenderModeExport( const IntImportCallback& importer ){
1779         switch ( CamWnd_GetMode() )
1780         {
1781         case cd_wire:
1782                 importer( 0 );
1783                 break;
1784         case cd_solid:
1785                 importer( 1 );
1786                 break;
1787         case cd_texture:
1788                 importer( 2 );
1789                 break;
1790         case cd_lighting:
1791                 importer( 3 );
1792                 break;
1793         }
1794 }
1795 typedef FreeCaller1<const IntImportCallback&, RenderModeExport> RenderModeExportCaller;
1796
1797 void Camera_constructPreferences( PreferencesPage& page ){
1798         page.appendSlider( "Movement Speed", g_camwindow_globals_private.m_nMoveSpeed, TRUE, 0, 0, 100, MIN_CAM_SPEED, MAX_CAM_SPEED, 1, 10 );
1799         page.appendCheckBox( "", "Link strafe speed to movement speed", g_camwindow_globals_private.m_bCamLinkSpeed );
1800         page.appendSlider( "Rotation Speed", g_camwindow_globals_private.m_nAngleSpeed, TRUE, 0, 0, 3, 1, 180, 1, 10 );
1801         page.appendCheckBox( "", "Invert mouse vertical axis", g_camwindow_globals_private.m_bCamInverseMouse );
1802         page.appendCheckBox(
1803                 "", "Discrete movement",
1804                 FreeCaller1<bool, CamWnd_Move_Discrete_Import>(),
1805                 BoolExportCaller( g_camwindow_globals_private.m_bCamDiscrete )
1806                 );
1807         page.appendCheckBox(
1808                 "", "Enable far-clip plane",
1809                 FreeCaller1<bool, Camera_SetFarClip>(),
1810                 BoolExportCaller( g_camwindow_globals_private.m_bCubicClipping )
1811                 );
1812
1813         if ( g_pGameDescription->mGameType == "doom3" ) {
1814                 const char* render_mode[] = { "Wireframe", "Flatshade", "Textured", "Lighting" };
1815
1816                 page.appendCombo(
1817                         "Render Mode",
1818                         STRING_ARRAY_RANGE( render_mode ),
1819                         IntImportCallback( RenderModeImportCaller() ),
1820                         IntExportCallback( RenderModeExportCaller() )
1821                         );
1822         }
1823         else
1824         {
1825                 const char* render_mode[] = { "Wireframe", "Flatshade", "Textured" };
1826
1827                 page.appendCombo(
1828                         "Render Mode",
1829                         STRING_ARRAY_RANGE( render_mode ),
1830                         IntImportCallback( RenderModeImportCaller() ),
1831                         IntExportCallback( RenderModeExportCaller() )
1832                         );
1833         }
1834
1835         const char* strafe_mode[] = { "Both", "Forward", "Up" };
1836
1837         page.appendCombo(
1838                 "Strafe Mode",
1839                 g_camwindow_globals_private.m_nStrafeMode,
1840                 STRING_ARRAY_RANGE( strafe_mode )
1841                 );
1842 }
1843 void Camera_constructPage( PreferenceGroup& group ){
1844         PreferencesPage page( group.createPage( "Camera", "Camera View Preferences" ) );
1845         Camera_constructPreferences( page );
1846 }
1847 void Camera_registerPreferencesPage(){
1848         PreferencesDialog_addSettingsPage( FreeCaller1<PreferenceGroup&, Camera_constructPage>() );
1849 }
1850
1851 #include "preferencesystem.h"
1852 #include "stringio.h"
1853 #include "dialog.h"
1854
1855 typedef FreeCaller1<bool, CamWnd_Move_Discrete_Import> CamWndMoveDiscreteImportCaller;
1856
1857 void CameraSpeed_increase(){
1858         if ( g_camwindow_globals_private.m_nMoveSpeed <= ( MAX_CAM_SPEED - CAM_SPEED_STEP - 10 ) ) {
1859                 g_camwindow_globals_private.m_nMoveSpeed += CAM_SPEED_STEP;
1860         }
1861         else {
1862                 g_camwindow_globals_private.m_nMoveSpeed = MAX_CAM_SPEED - 10;
1863         }
1864 }
1865
1866 void CameraSpeed_decrease(){
1867         if ( g_camwindow_globals_private.m_nMoveSpeed >= ( MIN_CAM_SPEED + CAM_SPEED_STEP ) ) {
1868                 g_camwindow_globals_private.m_nMoveSpeed -= CAM_SPEED_STEP;
1869         }
1870         else {
1871                 g_camwindow_globals_private.m_nMoveSpeed = MIN_CAM_SPEED;
1872         }
1873 }
1874
1875 /// \brief Initialisation for things that have the same lifespan as this module.
1876 void CamWnd_Construct(){
1877         GlobalCommands_insert( "CenterView", FreeCaller<GlobalCamera_ResetAngles>(), Accelerator( GDK_End ) );
1878
1879         GlobalToggles_insert( "ToggleCubicClip", FreeCaller<Camera_ToggleFarClip>(), ToggleItem::AddCallbackCaller( g_getfarclip_item ), Accelerator( '\\', (GdkModifierType)GDK_CONTROL_MASK ) );
1880         GlobalCommands_insert( "CubicClipZoomIn", FreeCaller<Camera_CubeIn>(), Accelerator( '[', (GdkModifierType)GDK_CONTROL_MASK ) );
1881         GlobalCommands_insert( "CubicClipZoomOut", FreeCaller<Camera_CubeOut>(), Accelerator( ']', (GdkModifierType)GDK_CONTROL_MASK ) );
1882
1883         GlobalCommands_insert( "UpFloor", FreeCaller<Camera_ChangeFloorUp>(), Accelerator( GDK_Prior ) );
1884         GlobalCommands_insert( "DownFloor", FreeCaller<Camera_ChangeFloorDown>(), Accelerator( GDK_Next ) );
1885
1886         GlobalToggles_insert( "ToggleCamera", ToggleShown::ToggleCaller( g_camera_shown ), ToggleItem::AddCallbackCaller( g_camera_shown.m_item ), Accelerator( 'C', (GdkModifierType)( GDK_SHIFT_MASK | GDK_CONTROL_MASK ) ) );
1887         GlobalCommands_insert( "LookThroughSelected", FreeCaller<GlobalCamera_LookThroughSelected>() );
1888         GlobalCommands_insert( "LookThroughCamera", FreeCaller<GlobalCamera_LookThroughCamera>() );
1889
1890         if ( g_pGameDescription->mGameType == "doom3" ) {
1891                 GlobalCommands_insert( "TogglePreview", FreeCaller<CamWnd_TogglePreview>(), Accelerator( GDK_F3 ) );
1892         }
1893
1894         GlobalCommands_insert( "CameraSpeedInc", FreeCaller<CameraSpeed_increase>(), Accelerator( GDK_KP_Add, (GdkModifierType)GDK_SHIFT_MASK ) );
1895         GlobalCommands_insert( "CameraSpeedDec", FreeCaller<CameraSpeed_decrease>(), Accelerator( GDK_KP_Subtract, (GdkModifierType)GDK_SHIFT_MASK ) );
1896
1897         GlobalShortcuts_insert( "CameraForward", Accelerator( GDK_Up ) );
1898         GlobalShortcuts_insert( "CameraBack", Accelerator( GDK_Down ) );
1899         GlobalShortcuts_insert( "CameraLeft", Accelerator( GDK_Left ) );
1900         GlobalShortcuts_insert( "CameraRight", Accelerator( GDK_Right ) );
1901         GlobalShortcuts_insert( "CameraStrafeRight", Accelerator( GDK_period ) );
1902         GlobalShortcuts_insert( "CameraStrafeLeft", Accelerator( GDK_comma ) );
1903
1904         GlobalShortcuts_insert( "CameraUp", Accelerator( 'D' ) );
1905         GlobalShortcuts_insert( "CameraDown", Accelerator( 'C' ) );
1906         GlobalShortcuts_insert( "CameraAngleUp", Accelerator( 'A' ) );
1907         GlobalShortcuts_insert( "CameraAngleDown", Accelerator( 'Z' ) );
1908
1909         GlobalShortcuts_insert( "CameraFreeMoveForward", Accelerator( GDK_Up ) );
1910         GlobalShortcuts_insert( "CameraFreeMoveBack", Accelerator( GDK_Down ) );
1911         GlobalShortcuts_insert( "CameraFreeMoveLeft", Accelerator( GDK_Left ) );
1912         GlobalShortcuts_insert( "CameraFreeMoveRight", Accelerator( GDK_Right ) );
1913
1914         GlobalToggles_insert( "ShowStats", ShowStatsToggleCaller(), ToggleItem::AddCallbackCaller( g_show_stats ) );
1915
1916         GlobalPreferenceSystem().registerPreference( "ShowStats", BoolImportStringCaller( g_camwindow_globals_private.m_showStats ), BoolExportStringCaller( g_camwindow_globals_private.m_showStats ) );
1917         GlobalPreferenceSystem().registerPreference( "MoveSpeed", IntImportStringCaller( g_camwindow_globals_private.m_nMoveSpeed ), IntExportStringCaller( g_camwindow_globals_private.m_nMoveSpeed ) );
1918         GlobalPreferenceSystem().registerPreference( "CamLinkSpeed", BoolImportStringCaller( g_camwindow_globals_private.m_bCamLinkSpeed ), BoolExportStringCaller( g_camwindow_globals_private.m_bCamLinkSpeed ) );
1919         GlobalPreferenceSystem().registerPreference( "AngleSpeed", IntImportStringCaller( g_camwindow_globals_private.m_nAngleSpeed ), IntExportStringCaller( g_camwindow_globals_private.m_nAngleSpeed ) );
1920         GlobalPreferenceSystem().registerPreference( "CamInverseMouse", BoolImportStringCaller( g_camwindow_globals_private.m_bCamInverseMouse ), BoolExportStringCaller( g_camwindow_globals_private.m_bCamInverseMouse ) );
1921         GlobalPreferenceSystem().registerPreference( "CamDiscrete", makeBoolStringImportCallback( CamWndMoveDiscreteImportCaller() ), BoolExportStringCaller( g_camwindow_globals_private.m_bCamDiscrete ) );
1922         GlobalPreferenceSystem().registerPreference( "CubicClipping", BoolImportStringCaller( g_camwindow_globals_private.m_bCubicClipping ), BoolExportStringCaller( g_camwindow_globals_private.m_bCubicClipping ) );
1923         GlobalPreferenceSystem().registerPreference( "CubicScale", IntImportStringCaller( g_camwindow_globals.m_nCubicScale ), IntExportStringCaller( g_camwindow_globals.m_nCubicScale ) );
1924         GlobalPreferenceSystem().registerPreference( "SI_Colors4", Vector3ImportStringCaller( g_camwindow_globals.color_cameraback ), Vector3ExportStringCaller( g_camwindow_globals.color_cameraback ) );
1925         GlobalPreferenceSystem().registerPreference( "SI_Colors12", Vector3ImportStringCaller( g_camwindow_globals.color_selbrushes3d ), Vector3ExportStringCaller( g_camwindow_globals.color_selbrushes3d ) );
1926         GlobalPreferenceSystem().registerPreference( "CameraRenderMode", makeIntStringImportCallback( RenderModeImportCaller() ), makeIntStringExportCallback( RenderModeExportCaller() ) );
1927         GlobalPreferenceSystem().registerPreference( "StrafeMode", IntImportStringCaller( g_camwindow_globals_private.m_nStrafeMode ), IntExportStringCaller( g_camwindow_globals_private.m_nStrafeMode ) );
1928
1929         CamWnd_constructStatic();
1930
1931         Camera_registerPreferencesPage();
1932 }
1933 void CamWnd_Destroy(){
1934         CamWnd_destroyStatic();
1935 }