radiant/camwindow.cpp

   1 /*
   2 Copyright (C) 1999-2006 Id Software, Inc. and contributors.
   3 For a list of contributors, see the accompanying CONTRIBUTORS file.
   4
   5 This file is part of GtkRadiant.
   6
   7 GtkRadiant is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 GtkRadiant is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GtkRadiant; if not, write to the Free Software
  19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  20 */
  21
  22 //
  23 // Camera Window
  24 //
  25 // Leonardo Zide (leo@lokigames.com)
  26 //
  27
  28 #include "camwindow.h"
  29
  30 #include "debugging/debugging.h"
  31
  32 #include "iscenegraph.h"
  33 #include "irender.h"
  34 #include "igl.h"
  35 #include "icamera.h"
  36 #include "cullable.h"
  37 #include "renderable.h"
  38 #include "preferencesystem.h"
  39
  40 #include "signal/signal.h"
  41 #include "container/array.h"
  42 #include "scenelib.h"
  43 #include "render.h"
  44 #include "cmdlib.h"
  45 #include "math/frustum.h"
  46
  47 #include "gtkutil/widget.h"
  48 #include "gtkutil/button.h"
  49 #include "gtkutil/toolbar.h"
  50 #include "gtkutil/glwidget.h"
  51 #include "gtkutil/xorrectangle.h"
  52 #include "gtkmisc.h"
  53 #include "selection.h"
  54 #include "mainframe.h"
  55 #include "preferences.h"
  56 #include "commands.h"
  57 #include "xywindow.h"
  58 #include "windowobservers.h"
  59 #include "renderstate.h"
  60
  61 #include "timer.h"
  62
  63 Signal0 g_cameraMoved_callbacks;
  64
  65 void AddCameraMovedCallback(const SignalHandler& handler)
  66 {
  67   g_cameraMoved_callbacks.connectLast(handler);
  68 }
  69
  70 void CameraMovedNotify()
  71 {
  72   g_cameraMoved_callbacks();
  73 }
  74
  75
  76 struct camwindow_globals_private_t
  77 {
  78   int m_nMoveSpeed;
  79   bool m_bCamLinkSpeed;
  80   int m_nAngleSpeed;
  81   bool m_bCamInverseMouse;
  82   bool m_bCamDiscrete;
  83   bool m_bCubicClipping;
  84   bool m_showStats;
  85   int m_nStrafeMode;
  86
  87   camwindow_globals_private_t() :
  88     m_nMoveSpeed(100),
  89     m_bCamLinkSpeed(true),
  90     m_nAngleSpeed(3),
  91     m_bCamInverseMouse(false),
  92     m_bCamDiscrete(true),
  93     m_bCubicClipping(true),
  94     m_showStats(true),
  95         m_nStrafeMode(0)
  96   {
  97   }
  98
  99 };
 100
 101 camwindow_globals_private_t g_camwindow_globals_private;
 102
 103
 104 const Matrix4 g_opengl2radiant(
 105   0, 0,-1, 0,
 106  -1, 0, 0, 0,
 107   0, 1, 0, 0,
 108   0, 0, 0, 1
 109 );
 110
 111 const Matrix4 g_radiant2opengl(
 112   0,-1, 0, 0,
 113   0, 0, 1, 0,
 114  -1, 0, 0, 0,
 115   0, 0, 0, 1
 116 );
 117
 118 struct camera_t;
 119 void Camera_mouseMove(camera_t& camera, int x, int y);
 120
 121 enum camera_draw_mode
 122 {
 123   cd_wire,
 124   cd_solid,
 125   cd_texture,
 126   cd_lighting
 127 };
 128
 129 struct camera_t
 130 {
 131   int width, height;
 132
 133   bool timing;
 134
 135   Vector3 origin;
 136   Vector3 angles;
 137
 138   Vector3 color;   // background
 139
 140   Vector3  forward, right; // move matrix (TTimo: used to have up but it was not updated)
 141   Vector3 vup, vpn, vright; // view matrix (taken from the modelview matrix)
 142
 143   Matrix4 projection;
 144   Matrix4 modelview;
 145
 146   bool m_strafe; // true when in strafemode toggled by the ctrl-key
 147   bool m_strafe_forward; // true when in strafemode by ctrl-key and shift is pressed for forward strafing
 148
 149   unsigned int movementflags;  // movement flags
 150   Timer m_keycontrol_timer;
 151   guint m_keymove_handler;
 152
 153
 154   float fieldOfView;
 155
 156   DeferredMotionDelta m_mouseMove;
 157
 158   static void motionDelta(int x, int y, void* data)
 159   {
 160     Camera_mouseMove(*reinterpret_cast<camera_t*>(data), x, y);
 161   }
 162
 163   View* m_view;
 164   Callback m_update;
 165
 166   static camera_draw_mode draw_mode;
 167
 168   camera_t(View* view, const Callback& update)
 169     : width(0),
 170     height(0),
 171     timing(false),
 172     origin(0, 0, 0),
 173     angles(0, 0, 0),
 174     color(0, 0, 0),
 175     movementflags(0),
 176     m_keymove_handler(0),
 177     fieldOfView(90.0f),
 178     m_mouseMove(motionDelta, this),
 179     m_view(view),
 180     m_update(update)
 181   {
 182   }
 183 };
 184
 185 camera_draw_mode camera_t::draw_mode = cd_texture;
 186
 187 inline Matrix4 projection_for_camera(float near_z, float far_z, float fieldOfView, int width, int height)
 188 {
 189   const float half_width = static_cast<float>(near_z * tan(degrees_to_radians(fieldOfView * 0.5)));
 190   const float half_height = half_width * (static_cast<float>(height) / static_cast<float>(width));
 191
 192   return matrix4_frustum(
 193     -half_width,
 194     half_width,
 195     -half_height,
 196     half_height,
 197     near_z,
 198     far_z
 199   );
 200 }
 201
 202 float Camera_getFarClipPlane(camera_t& camera)
 203 {
 204   return (g_camwindow_globals_private.m_bCubicClipping)? pow(2.0, (g_camwindow_globals.m_nCubicScale + 7) / 2.0) : 32768.0f;
 205 }
 206
 207 void Camera_updateProjection(camera_t& camera)
 208 {
 209   float farClip = Camera_getFarClipPlane(camera);
 210   camera.projection = projection_for_camera(farClip / 4096.0f, farClip, camera.fieldOfView, camera.width, camera.height);
 211
 212   camera.m_view->Construct(camera.projection, camera.modelview, camera.width, camera.height);
 213 }
 214
 215 void Camera_updateVectors(camera_t& camera)
 216 {
 217   for (int i=0 ; i<3 ; i++)
 218   {
 219     camera.vright[i] = camera.modelview[(i<<2)+0];
 220     camera.vup[i] = camera.modelview[(i<<2)+1];
 221     camera.vpn[i] = camera.modelview[(i<<2)+2];
 222   }
 223 }
 224
 225 void Camera_updateModelview(camera_t& camera)
 226 {
 227   camera.modelview = g_matrix4_identity;
 228
 229   // roll, pitch, yaw
 230   Vector3 radiant_eulerXYZ(0, -camera.angles[CAMERA_PITCH], camera.angles[CAMERA_YAW]);
 231
 232   matrix4_translate_by_vec3(camera.modelview, camera.origin);
 233   matrix4_rotate_by_euler_xyz_degrees(camera.modelview, radiant_eulerXYZ);
 234   matrix4_multiply_by_matrix4(camera.modelview, g_radiant2opengl);
 235   matrix4_affine_invert(camera.modelview);
 236
 237   Camera_updateVectors(camera);
 238
 239   camera.m_view->Construct(camera.projection, camera.modelview, camera.width, camera.height);
 240 }
 241
 242
 243 void Camera_Move_updateAxes(camera_t& camera)
 244 {
 245   double ya = degrees_to_radians(camera.angles[CAMERA_YAW]);
 246
 247   // the movement matrix is kept 2d
 248   camera.forward[0] = static_cast<float>(cos(ya));
 249   camera.forward[1] = static_cast<float>(sin(ya));
 250   camera.forward[2] = 0;
 251   camera.right[0] = camera.forward[1];
 252   camera.right[1] = -camera.forward[0];
 253 }
 254
 255 void Camera_Freemove_updateAxes(camera_t& camera)
 256 {
 257   camera.right = camera.vright;
 258   camera.forward = vector3_negated(camera.vpn);
 259 }
 260
 261 const Vector3& Camera_getOrigin(camera_t& camera)
 262 {
 263   return camera.origin;
 264 }
 265
 266 void Camera_setOrigin(camera_t& camera, const Vector3& origin)
 267 {
 268   camera.origin = origin;
 269   Camera_updateModelview(camera);
 270   camera.m_update();
 271   CameraMovedNotify();
 272 }
 273
 274 const Vector3& Camera_getAngles(camera_t& camera)
 275 {
 276   return camera.angles;
 277 }
 278
 279 void Camera_setAngles(camera_t& camera, const Vector3& angles)
 280 {
 281   camera.angles = angles;
 282   Camera_updateModelview(camera);
 283   camera.m_update();
 284   CameraMovedNotify();
 285 }
 286
 287
 288 void Camera_FreeMove(camera_t& camera, int dx, int dy)
 289 {
 290   // free strafe mode, toggled by the ctrl key with optional shift for forward movement
 291   if(camera.m_strafe)
 292   {
 293     float strafespeed = 0.65f;
 294
 295     if(g_camwindow_globals_private.m_bCamLinkSpeed)
 296     {
 297       strafespeed = (float)g_camwindow_globals_private.m_nMoveSpeed / 100;
 298     }
 299
 300           camera.origin -= camera.vright * strafespeed * dx;
 301           if(camera.m_strafe_forward)
 302             camera.origin += camera.vpn * strafespeed * dy;
 303           else
 304             camera.origin += camera.vup * strafespeed * dy;
 305   }
 306   else// free rotation
 307   {
 308     const float dtime = 0.1f;
 309
 310     if (g_camwindow_globals_private.m_bCamInverseMouse)
 311         camera.angles[CAMERA_PITCH] -= dy * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 312     else
 313         camera.angles[CAMERA_PITCH] += dy * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 314
 315     camera.angles[CAMERA_YAW] += dx * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 316
 317     if (camera.angles[CAMERA_PITCH] > 90)
 318         camera.angles[CAMERA_PITCH] = 90;
 319     else if (camera.angles[CAMERA_PITCH] < -90)
 320         camera.angles[CAMERA_PITCH] = -90;
 321
 322     if (camera.angles[CAMERA_YAW] >= 360)
 323         camera.angles[CAMERA_YAW] -=360;
 324     else if (camera.angles[CAMERA_YAW] <= 0)
 325         camera.angles[CAMERA_YAW] +=360;
 326   }
 327
 328   Camera_updateModelview(camera);
 329   Camera_Freemove_updateAxes(camera);
 330 }
 331
 332 void Cam_MouseControl(camera_t& camera, int x, int y)
 333 {
 334   int   xl, xh;
 335   int yl, yh;
 336   float xf, yf;
 337
 338   xf = (float)(x - camera.width/2) / (camera.width/2);
 339   yf = (float)(y - camera.height/2) / (camera.height/2);
 340
 341   xl = camera.width/3;
 342   xh = xl*2;
 343   yl = camera.height/3;
 344   yh = yl*2;
 345
 346   xf *= 1.0f - fabsf(yf);
 347   if (xf < 0)
 348   {
 349     xf += 0.1f;
 350     if (xf > 0)
 351       xf = 0;
 352   }
 353   else
 354   {
 355     xf -= 0.1f;
 356     if (xf < 0)
 357       xf = 0;
 358   }
 359
 360   vector3_add(camera.origin, vector3_scaled(camera.forward, yf * 0.1f* g_camwindow_globals_private.m_nMoveSpeed));
 361   camera.angles[CAMERA_YAW] += xf * -0.1f * g_camwindow_globals_private.m_nAngleSpeed;
 362
 363   Camera_updateModelview(camera);
 364 }
 365
 366 void Camera_mouseMove(camera_t& camera, int x, int y)
 367 {
 368   //globalOutputStream() << "mousemove... ";
 369   Camera_FreeMove(camera, -x, -y);
 370   camera.m_update();
 371   CameraMovedNotify();
 372 }
 373
 374 const unsigned int MOVE_NONE = 0;
 375 const unsigned int MOVE_FORWARD = 1 << 0;
 376 const unsigned int MOVE_BACK = 1 << 1;
 377 const unsigned int MOVE_ROTRIGHT = 1 << 2;
 378 const unsigned int MOVE_ROTLEFT = 1 << 3;
 379 const unsigned int MOVE_STRAFERIGHT = 1 << 4;
 380 const unsigned int MOVE_STRAFELEFT = 1 << 5;
 381 const unsigned int MOVE_UP = 1 << 6;
 382 const unsigned int MOVE_DOWN = 1 << 7;
 383 const unsigned int MOVE_PITCHUP = 1 << 8;
 384 const unsigned int MOVE_PITCHDOWN = 1 << 9;
 385 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;
 386
 387 void Cam_KeyControl(camera_t& camera, float dtime)
 388 {
 389   // Update angles
 390   if (camera.movementflags & MOVE_ROTLEFT)
 391     camera.angles[CAMERA_YAW] += 15 * dtime* g_camwindow_globals_private.m_nAngleSpeed;
 392   if (camera.movementflags & MOVE_ROTRIGHT)
 393     camera.angles[CAMERA_YAW] -= 15 * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 394   if (camera.movementflags & MOVE_PITCHUP)
 395   {
 396     camera.angles[CAMERA_PITCH] += 15 * dtime* g_camwindow_globals_private.m_nAngleSpeed;
 397     if(camera.angles[CAMERA_PITCH] > 90)
 398       camera.angles[CAMERA_PITCH] = 90;
 399   }
 400   if (camera.movementflags & MOVE_PITCHDOWN)
 401   {
 402     camera.angles[CAMERA_PITCH] -= 15 * dtime * g_camwindow_globals_private.m_nAngleSpeed;
 403     if(camera.angles[CAMERA_PITCH] < -90)
 404       camera.angles[CAMERA_PITCH] = -90;
 405   }
 406
 407   Camera_updateModelview(camera);
 408   Camera_Freemove_updateAxes(camera);
 409
 410   // Update position
 411   if (camera.movementflags & MOVE_FORWARD)
 412     vector3_add(camera.origin, vector3_scaled(camera.forward, dtime * g_camwindow_globals_private.m_nMoveSpeed));
 413   if (camera.movementflags & MOVE_BACK)
 414     vector3_add(camera.origin, vector3_scaled(camera.forward, -dtime * g_camwindow_globals_private.m_nMoveSpeed));
 415   if (camera.movementflags & MOVE_STRAFELEFT)
 416     vector3_add(camera.origin, vector3_scaled(camera.right, -dtime * g_camwindow_globals_private.m_nMoveSpeed));
 417   if (camera.movementflags & MOVE_STRAFERIGHT)
 418     vector3_add(camera.origin, vector3_scaled(camera.right, dtime * g_camwindow_globals_private.m_nMoveSpeed));
 419   if (camera.movementflags & MOVE_UP)
 420     vector3_add(camera.origin, vector3_scaled(g_vector3_axis_z, dtime * g_camwindow_globals_private.m_nMoveSpeed));
 421   if (camera.movementflags & MOVE_DOWN)
 422     vector3_add(camera.origin, vector3_scaled(g_vector3_axis_z, -dtime * g_camwindow_globals_private.m_nMoveSpeed));
 423
 424   Camera_updateModelview(camera);
 425 }
 426
 427 void Camera_keyMove(camera_t& camera)
 428 {
 429   camera.m_mouseMove.flush();
 430
 431   //globalOutputStream() << "keymove... ";
 432   float time_seconds = camera.m_keycontrol_timer.elapsed_msec() / static_cast<float>(msec_per_sec);
 433   camera.m_keycontrol_timer.start();
 434   if(time_seconds > 0.05f)
 435   {
 436     time_seconds = 0.05f; // 20fps
 437   }
 438   Cam_KeyControl(camera, time_seconds * 5.0f);
 439
 440   camera.m_update();
 441   CameraMovedNotify();
 442 }
 443
 444 gboolean camera_keymove(gpointer data)
 445 {
 446   Camera_keyMove(*reinterpret_cast<camera_t*>(data));
 447   return TRUE;
 448 }
 449
 450 void Camera_setMovementFlags(camera_t& camera, unsigned int mask)
 451 {
 452   if((~camera.movementflags & mask) != 0 && camera.movementflags == 0)
 453   {
 454     camera.m_keymove_handler = g_idle_add(camera_keymove, &camera);
 455   }
 456   camera.movementflags |= mask;
 457 }
 458 void Camera_clearMovementFlags(camera_t& camera, unsigned int mask)
 459 {
 460   if((camera.movementflags & ~mask) == 0 && camera.movementflags != 0)
 461   {
 462     g_source_remove(camera.m_keymove_handler);
 463     camera.m_keymove_handler = 0;
 464   }
 465   camera.movementflags &= ~mask;
 466 }
 467
 468 void Camera_MoveForward_KeyDown(camera_t& camera)
 469 {
 470   Camera_setMovementFlags(camera, MOVE_FORWARD);
 471 }
 472 void Camera_MoveForward_KeyUp(camera_t& camera)
 473 {
 474   Camera_clearMovementFlags(camera, MOVE_FORWARD);
 475 }
 476 void Camera_MoveBack_KeyDown(camera_t& camera)
 477 {
 478   Camera_setMovementFlags(camera, MOVE_BACK);
 479 }
 480 void Camera_MoveBack_KeyUp(camera_t& camera)
 481 {
 482   Camera_clearMovementFlags(camera, MOVE_BACK);
 483 }
 484
 485 void Camera_MoveLeft_KeyDown(camera_t& camera)
 486 {
 487   Camera_setMovementFlags(camera, MOVE_STRAFELEFT);
 488 }
 489 void Camera_MoveLeft_KeyUp(camera_t& camera)
 490 {
 491   Camera_clearMovementFlags(camera, MOVE_STRAFELEFT);
 492 }
 493 void Camera_MoveRight_KeyDown(camera_t& camera)
 494 {
 495   Camera_setMovementFlags(camera, MOVE_STRAFERIGHT);
 496 }
 497 void Camera_MoveRight_KeyUp(camera_t& camera)
 498 {
 499   Camera_clearMovementFlags(camera, MOVE_STRAFERIGHT);
 500 }
 501
 502 void Camera_MoveUp_KeyDown(camera_t& camera)
 503 {
 504   Camera_setMovementFlags(camera, MOVE_UP);
 505 }
 506 void Camera_MoveUp_KeyUp(camera_t& camera)
 507 {
 508   Camera_clearMovementFlags(camera, MOVE_UP);
 509 }
 510 void Camera_MoveDown_KeyDown(camera_t& camera)
 511 {
 512   Camera_setMovementFlags(camera, MOVE_DOWN);
 513 }
 514 void Camera_MoveDown_KeyUp(camera_t& camera)
 515 {
 516   Camera_clearMovementFlags(camera, MOVE_DOWN);
 517 }
 518
 519 void Camera_RotateLeft_KeyDown(camera_t& camera)
 520 {
 521   Camera_setMovementFlags(camera, MOVE_ROTLEFT);
 522 }
 523 void Camera_RotateLeft_KeyUp(camera_t& camera)
 524 {
 525   Camera_clearMovementFlags(camera, MOVE_ROTLEFT);
 526 }
 527 void Camera_RotateRight_KeyDown(camera_t& camera)
 528 {
 529   Camera_setMovementFlags(camera, MOVE_ROTRIGHT);
 530 }
 531 void Camera_RotateRight_KeyUp(camera_t& camera)
 532 {
 533   Camera_clearMovementFlags(camera, MOVE_ROTRIGHT);
 534 }
 535
 536 void Camera_PitchUp_KeyDown(camera_t& camera)
 537 {
 538   Camera_setMovementFlags(camera, MOVE_PITCHUP);
 539 }
 540 void Camera_PitchUp_KeyUp(camera_t& camera)
 541 {
 542   Camera_clearMovementFlags(camera, MOVE_PITCHUP);
 543 }
 544 void Camera_PitchDown_KeyDown(camera_t& camera)
 545 {
 546   Camera_setMovementFlags(camera, MOVE_PITCHDOWN);
 547 }
 548 void Camera_PitchDown_KeyUp(camera_t& camera)
 549 {
 550   Camera_clearMovementFlags(camera, MOVE_PITCHDOWN);
 551 }
 552
 553
 554 typedef ReferenceCaller<camera_t, &Camera_MoveForward_KeyDown> FreeMoveCameraMoveForwardKeyDownCaller;
 555 typedef ReferenceCaller<camera_t, &Camera_MoveForward_KeyUp> FreeMoveCameraMoveForwardKeyUpCaller;
 556 typedef ReferenceCaller<camera_t, &Camera_MoveBack_KeyDown> FreeMoveCameraMoveBackKeyDownCaller;
 557 typedef ReferenceCaller<camera_t, &Camera_MoveBack_KeyUp> FreeMoveCameraMoveBackKeyUpCaller;
 558 typedef ReferenceCaller<camera_t, &Camera_MoveLeft_KeyDown> FreeMoveCameraMoveLeftKeyDownCaller;
 559 typedef ReferenceCaller<camera_t, &Camera_MoveLeft_KeyUp> FreeMoveCameraMoveLeftKeyUpCaller;
 560 typedef ReferenceCaller<camera_t, &Camera_MoveRight_KeyDown> FreeMoveCameraMoveRightKeyDownCaller;
 561 typedef ReferenceCaller<camera_t, &Camera_MoveRight_KeyUp> FreeMoveCameraMoveRightKeyUpCaller;
 562 typedef ReferenceCaller<camera_t, &Camera_MoveUp_KeyDown> FreeMoveCameraMoveUpKeyDownCaller;
 563 typedef ReferenceCaller<camera_t, &Camera_MoveUp_KeyUp> FreeMoveCameraMoveUpKeyUpCaller;
 564 typedef ReferenceCaller<camera_t, &Camera_MoveDown_KeyDown> FreeMoveCameraMoveDownKeyDownCaller;
 565 typedef ReferenceCaller<camera_t, &Camera_MoveDown_KeyUp> FreeMoveCameraMoveDownKeyUpCaller;
 566
 567
 568 #define SPEED_MOVE 32
 569 #define SPEED_TURN 22.5
 570 #define MIN_CAM_SPEED 10
 571 #define MAX_CAM_SPEED 610
 572 #define CAM_SPEED_STEP 50
 573
 574 void Camera_MoveForward_Discrete(camera_t& camera)
 575 {
 576   Camera_Move_updateAxes(camera);
 577   Camera_setOrigin(camera, vector3_added(Camera_getOrigin(camera), vector3_scaled(camera.forward, SPEED_MOVE)));
 578 }
 579 void Camera_MoveBack_Discrete(camera_t& camera)
 580 {
 581   Camera_Move_updateAxes(camera);
 582   Camera_setOrigin(camera, vector3_added(Camera_getOrigin(camera), vector3_scaled(camera.forward, -SPEED_MOVE)));
 583 }
 584
 585 void Camera_MoveUp_Discrete(camera_t& camera)
 586 {
 587   Vector3 origin(Camera_getOrigin(camera));
 588   origin[2] += SPEED_MOVE;
 589   Camera_setOrigin(camera, origin);
 590 }
 591 void Camera_MoveDown_Discrete(camera_t& camera)
 592 {
 593   Vector3 origin(Camera_getOrigin(camera));
 594   origin[2] -= SPEED_MOVE;
 595   Camera_setOrigin(camera, origin);
 596 }
 597
 598 void Camera_MoveLeft_Discrete(camera_t& camera)
 599 {
 600   Camera_Move_updateAxes(camera);
 601   Camera_setOrigin(camera, vector3_added(Camera_getOrigin(camera), vector3_scaled(camera.right, -SPEED_MOVE)));
 602 }
 603 void Camera_MoveRight_Discrete(camera_t& camera)
 604 {
 605   Camera_Move_updateAxes(camera);
 606   Camera_setOrigin(camera, vector3_added(Camera_getOrigin(camera), vector3_scaled(camera.right, SPEED_MOVE)));
 607 }
 608
 609 void Camera_RotateLeft_Discrete(camera_t& camera)
 610 {
 611   Vector3 angles(Camera_getAngles(camera));
 612   angles[CAMERA_YAW] += SPEED_TURN;
 613   Camera_setAngles(camera, angles);
 614 }
 615 void Camera_RotateRight_Discrete(camera_t& camera)
 616 {
 617   Vector3 angles(Camera_getAngles(camera));
 618   angles[CAMERA_YAW] -= SPEED_TURN;
 619   Camera_setAngles(camera, angles);
 620 }
 621
 622 void Camera_PitchUp_Discrete(camera_t& camera)
 623 {
 624   Vector3 angles(Camera_getAngles(camera));
 625   angles[CAMERA_PITCH] += SPEED_TURN;
 626   if (angles[CAMERA_PITCH] > 90)
 627     angles[CAMERA_PITCH] = 90;
 628   Camera_setAngles(camera, angles);
 629 }
 630 void Camera_PitchDown_Discrete(camera_t& camera)
 631 {
 632   Vector3 angles(Camera_getAngles(camera));
 633   angles[CAMERA_PITCH] -= SPEED_TURN;
 634   if (angles[CAMERA_PITCH] < -90)
 635     angles[CAMERA_PITCH] = -90;
 636   Camera_setAngles(camera, angles);
 637 }
 638
 639
 640 class RadiantCameraView : public CameraView
 641 {
 642   camera_t& m_camera;
 643   View* m_view;
 644   Callback m_update;
 645 public:
 646   RadiantCameraView(camera_t& camera, View* view, const Callback& update) : m_camera(camera), m_view(view), m_update(update)
 647   {
 648   }
 649   void update()
 650   {
 651     m_view->Construct(m_camera.projection, m_camera.modelview, m_camera.width, m_camera.height);
 652     m_update();
 653   }
 654   void setModelview(const Matrix4& modelview)
 655   {
 656     m_camera.modelview = modelview;
 657     matrix4_multiply_by_matrix4(m_camera.modelview, g_radiant2opengl);
 658     matrix4_affine_invert(m_camera.modelview);
 659     Camera_updateVectors(m_camera);
 660     update();
 661   }
 662   void setFieldOfView(float fieldOfView)
 663   {
 664     float farClip = Camera_getFarClipPlane(m_camera);
 665     m_camera.projection = projection_for_camera(farClip / 4096.0f, farClip, fieldOfView, m_camera.width, m_camera.height);
 666     update();
 667   }
 668 };
 669
 670
 671 void Camera_motionDelta(int x, int y, unsigned int state, void* data)
 672 {
 673   camera_t* cam = reinterpret_cast<camera_t*>(data);
 674
 675   cam->m_mouseMove.motion_delta(x, y, state);
 676
 677         switch(g_camwindow_globals_private.m_nStrafeMode)
 678         {
 679                 case 0:
 680                         cam->m_strafe = (state & GDK_CONTROL_MASK) != 0;
 681                         if(cam->m_strafe)
 682                                 cam->m_strafe_forward = (state & GDK_SHIFT_MASK) != 0;
 683                         else
 684                                 cam->m_strafe_forward = false;
 685                         break;
 686                 case 1:
 687                         cam->m_strafe = (state & GDK_CONTROL_MASK) != 0 && (state & GDK_SHIFT_MASK) == 0;
 688                         cam->m_strafe_forward = false;
 689                         break;
 690                 case 2:
 691                         cam->m_strafe = (state & GDK_CONTROL_MASK) != 0 && (state & GDK_SHIFT_MASK) == 0;
 692                         cam->m_strafe_forward = cam->m_strafe;
 693                         break;
 694         }
 695 }
 696
 697 class CamWnd
 698 {
 699   View m_view;
 700   camera_t m_Camera;
 701   RadiantCameraView m_cameraview;
 702 #if 0
 703   int m_PositionDragCursorX;
 704   int m_PositionDragCursorY;
 705 #endif
 706
 707   guint m_freemove_handle_focusout;
 708
 709   static Shader* m_state_select1;
 710   static Shader* m_state_select2;
 711
 712   FreezePointer m_freezePointer;
 713
 714 public:
 715   GtkWidget* m_gl_widget;
 716   GtkWindow* m_parent;
 717
 718   SelectionSystemWindowObserver* m_window_observer;
 719   XORRectangle m_XORRectangle;
 720
 721   DeferredDraw m_deferredDraw;
 722   DeferredMotion m_deferred_motion;
 723
 724   guint m_selection_button_press_handler;
 725   guint m_selection_button_release_handler;
 726   guint m_selection_motion_handler;
 727
 728   guint m_freelook_button_press_handler;
 729
 730   guint m_sizeHandler;
 731   guint m_exposeHandler;
 732
 733   CamWnd();
 734   ~CamWnd();
 735
 736   bool m_drawing;
 737   void queue_draw()
 738   {
 739     //ASSERT_MESSAGE(!m_drawing, "CamWnd::queue_draw(): called while draw is already in progress");
 740     if(m_drawing)
 741     {
 742       return;
 743     }
 744     //globalOutputStream() << "queue... ";
 745     m_deferredDraw.draw();
 746   }
 747   void draw();
 748
 749   static void captureStates()
 750   {
 751     m_state_select1 = GlobalShaderCache().capture("$CAM_HIGHLIGHT");
 752     m_state_select2 = GlobalShaderCache().capture("$CAM_OVERLAY");
 753   }
 754   static void releaseStates()
 755   {
 756     GlobalShaderCache().release("$CAM_HIGHLIGHT");
 757     GlobalShaderCache().release("$CAM_OVERLAY");
 758   }
 759
 760   camera_t& getCamera()
 761   {
 762     return m_Camera;
 763   };
 764
 765   void BenchMark();
 766   void Cam_ChangeFloor(bool up);
 767
 768   void DisableFreeMove();
 769   void EnableFreeMove();
 770   bool m_bFreeMove;
 771
 772   CameraView& getCameraView()
 773   {
 774     return m_cameraview;
 775   }
 776
 777 private:
 778   void Cam_Draw();
 779 };
 780
 781 typedef MemberCaller<CamWnd, &CamWnd::queue_draw> CamWndQueueDraw;
 782
 783 Shader* CamWnd::m_state_select1 = 0;
 784 Shader* CamWnd::m_state_select2 = 0;
 785
 786 CamWnd* NewCamWnd()
 787 {
 788   return new CamWnd;
 789 }
 790 void DeleteCamWnd(CamWnd* camwnd)
 791 {
 792   delete camwnd;
 793 }
 794
 795 void CamWnd_constructStatic()
 796 {
 797   CamWnd::captureStates();
 798 }
 799
 800 void CamWnd_destroyStatic()
 801 {
 802   CamWnd::releaseStates();
 803 }
 804
 805 static CamWnd* g_camwnd = 0;
 806
 807 void GlobalCamera_setCamWnd(CamWnd& camwnd)
 808 {
 809   g_camwnd = &camwnd;
 810 }
 811
 812
 813 GtkWidget* CamWnd_getWidget(CamWnd& camwnd)
 814 {
 815   return camwnd.m_gl_widget;
 816 }
 817
 818 GtkWindow* CamWnd_getParent(CamWnd& camwnd)
 819 {
 820   return camwnd.m_parent;
 821 }
 822
 823 ToggleShown g_camera_shown(true);
 824
 825 void CamWnd_setParent(CamWnd& camwnd, GtkWindow* parent)
 826 {
 827   camwnd.m_parent = parent;
 828   g_camera_shown.connect(GTK_WIDGET(camwnd.m_parent));
 829 }
 830
 831 void CamWnd_Update(CamWnd& camwnd)
 832 {
 833   camwnd.queue_draw();
 834 }
 835
 836
 837
 838 camwindow_globals_t g_camwindow_globals;
 839
 840 const Vector3& Camera_getOrigin(CamWnd& camwnd)
 841 {
 842   return Camera_getOrigin(camwnd.getCamera());
 843 }
 844
 845 void Camera_setOrigin(CamWnd& camwnd, const Vector3& origin)
 846 {
 847   Camera_setOrigin(camwnd.getCamera(), origin);
 848 }
 849
 850 const Vector3& Camera_getAngles(CamWnd& camwnd)
 851 {
 852   return Camera_getAngles(camwnd.getCamera());
 853 }
 854
 855 void Camera_setAngles(CamWnd& camwnd, const Vector3& angles)
 856 {
 857   Camera_setAngles(camwnd.getCamera(), angles);
 858 }
 859
 860
 861 // =============================================================================
 862 // CamWnd class
 863
 864 gboolean enable_freelook_button_press(GtkWidget* widget, GdkEventButton* event, CamWnd* camwnd)
 865 {
 866   if(event->type == GDK_BUTTON_PRESS && event->button == 3)
 867   {
 868     camwnd->EnableFreeMove();
 869     return TRUE;
 870   }
 871   return FALSE;
 872 }
 873
 874 gboolean disable_freelook_button_press(GtkWidget* widget, GdkEventButton* event, CamWnd* camwnd)
 875 {
 876   if(event->type == GDK_BUTTON_PRESS && event->button == 3)
 877   {
 878     camwnd->DisableFreeMove();
 879     return TRUE;
 880   }
 881   return FALSE;
 882 }
 883
 884 #if 0
 885 gboolean mousecontrol_button_press(GtkWidget* widget, GdkEventButton* event, CamWnd* camwnd)
 886 {
 887   if(event->type == GDK_BUTTON_PRESS && event->button == 3)
 888   {
 889     Cam_MouseControl(camwnd->getCamera(), event->x, widget->allocation.height - 1 - event->y);
 890   }
 891   return FALSE;
 892 }
 893 #endif
 894
 895 void camwnd_update_xor_rectangle(CamWnd& self, rect_t area)
 896 {
 897   if(GTK_WIDGET_VISIBLE(self.m_gl_widget))
 898   {
 899     self.m_XORRectangle.set(rectangle_from_area(area.min, area.max, self.getCamera().width, self.getCamera().height));
 900   }
 901 }
 902
 903
 904 gboolean selection_button_press(GtkWidget* widget, GdkEventButton* event, WindowObserver* observer)
 905 {
 906   if(event->type == GDK_BUTTON_PRESS)
 907   {
 908     observer->onMouseDown(WindowVector_forDouble(event->x, event->y), button_for_button(event->button), modifiers_for_state(event->state));
 909   }
 910   return FALSE;
 911 }
 912
 913 gboolean selection_button_release(GtkWidget* widget, GdkEventButton* event, WindowObserver* observer)
 914 {
 915   if(event->type == GDK_BUTTON_RELEASE)
 916   {
 917     observer->onMouseUp(WindowVector_forDouble(event->x, event->y), button_for_button(event->button), modifiers_for_state(event->state));
 918   }
 919   return FALSE;
 920 }
 921
 922 void selection_motion(gdouble x, gdouble y, guint state, void* data)
 923 {
 924   //globalOutputStream() << "motion... ";
 925   reinterpret_cast<WindowObserver*>(data)->onMouseMotion(WindowVector_forDouble(x, y), modifiers_for_state(state));
 926 }
 927
 928 inline WindowVector windowvector_for_widget_centre(GtkWidget* widget)
 929 {
 930   return WindowVector(static_cast<float>(widget->allocation.width / 2), static_cast<float>(widget->allocation.height / 2));
 931 }
 932
 933 gboolean selection_button_press_freemove(GtkWidget* widget, GdkEventButton* event, WindowObserver* observer)
 934 {
 935   if(event->type == GDK_BUTTON_PRESS)
 936   {
 937     observer->onMouseDown(windowvector_for_widget_centre(widget), button_for_button(event->button), modifiers_for_state(event->state));
 938   }
 939   return FALSE;
 940 }
 941
 942 gboolean selection_button_release_freemove(GtkWidget* widget, GdkEventButton* event, WindowObserver* observer)
 943 {
 944   if(event->type == GDK_BUTTON_RELEASE)
 945   {
 946     observer->onMouseUp(windowvector_for_widget_centre(widget), button_for_button(event->button), modifiers_for_state(event->state));
 947   }
 948   return FALSE;
 949 }
 950
 951 gboolean selection_motion_freemove(GtkWidget *widget, GdkEventMotion *event, WindowObserver* observer)
 952 {
 953   observer->onMouseMotion(windowvector_for_widget_centre(widget), modifiers_for_state(event->state));
 954   return FALSE;
 955 }
 956
 957 gboolean wheelmove_scroll(GtkWidget* widget, GdkEventScroll* event, CamWnd* camwnd)
 958 {
 959   if(event->direction == GDK_SCROLL_UP)
 960   {
 961     Camera_Freemove_updateAxes(camwnd->getCamera());
 962     Camera_setOrigin(*camwnd, vector3_added(Camera_getOrigin(*camwnd), vector3_scaled(camwnd->getCamera().forward, static_cast<float>(g_camwindow_globals_private.m_nMoveSpeed))));
 963   }
 964   else if(event->direction == GDK_SCROLL_DOWN)
 965   {
 966     Camera_Freemove_updateAxes(camwnd->getCamera());
 967     Camera_setOrigin(*camwnd, vector3_added(Camera_getOrigin(*camwnd), vector3_scaled(camwnd->getCamera().forward, -static_cast<float>(g_camwindow_globals_private.m_nMoveSpeed))));
 968   }
 969
 970   return FALSE;
 971 }
 972
 973 gboolean camera_size_allocate(GtkWidget* widget, GtkAllocation* allocation, CamWnd* camwnd)
 974 {
 975   camwnd->getCamera().width = allocation->width;
 976   camwnd->getCamera().height = allocation->height;
 977   Camera_updateProjection(camwnd->getCamera());
 978   camwnd->m_window_observer->onSizeChanged(camwnd->getCamera().width, camwnd->getCamera().height);
 979   camwnd->queue_draw();
 980   return FALSE;
 981 }
 982
 983 gboolean camera_expose(GtkWidget* widget, GdkEventExpose* event, gpointer data)
 984 {
 985   reinterpret_cast<CamWnd*>(data)->draw();
 986   return FALSE;
 987 }
 988
 989 void KeyEvent_connect(const char* name)
 990 {
 991   const KeyEvent& keyEvent = GlobalKeyEvents_find(name);
 992   keydown_accelerators_add(keyEvent.m_accelerator, keyEvent.m_keyDown);
 993   keyup_accelerators_add(keyEvent.m_accelerator, keyEvent.m_keyUp);
 994 }
 995
 996 void KeyEvent_disconnect(const char* name)
 997 {
 998   const KeyEvent& keyEvent = GlobalKeyEvents_find(name);
 999   keydown_accelerators_remove(keyEvent.m_accelerator);
1000   keyup_accelerators_remove(keyEvent.m_accelerator);
1001 }
1002
1003 void CamWnd_registerCommands(CamWnd& camwnd)
1004 {
1005   GlobalKeyEvents_insert("CameraForward", Accelerator(GDK_Up),
1006     ReferenceCaller<camera_t, Camera_MoveForward_KeyDown>(camwnd.getCamera()),
1007     ReferenceCaller<camera_t, Camera_MoveForward_KeyUp>(camwnd.getCamera())
1008   );
1009   GlobalKeyEvents_insert("CameraBack", Accelerator(GDK_Down),
1010     ReferenceCaller<camera_t, Camera_MoveBack_KeyDown>(camwnd.getCamera()),
1011     ReferenceCaller<camera_t, Camera_MoveBack_KeyUp>(camwnd.getCamera())
1012   );
1013   GlobalKeyEvents_insert("CameraLeft", Accelerator(GDK_Left),
1014     ReferenceCaller<camera_t, Camera_RotateLeft_KeyDown>(camwnd.getCamera()),
1015     ReferenceCaller<camera_t, Camera_RotateLeft_KeyUp>(camwnd.getCamera())
1016   );
1017   GlobalKeyEvents_insert("CameraRight", Accelerator(GDK_Right),
1018     ReferenceCaller<camera_t, Camera_RotateRight_KeyDown>(camwnd.getCamera()),
1019     ReferenceCaller<camera_t, Camera_RotateRight_KeyUp>(camwnd.getCamera())
1020   );
1021   GlobalKeyEvents_insert("CameraStrafeRight", Accelerator(GDK_period),
1022     ReferenceCaller<camera_t, Camera_MoveRight_KeyDown>(camwnd.getCamera()),
1023     ReferenceCaller<camera_t, Camera_MoveRight_KeyUp>(camwnd.getCamera())
1024   );
1025   GlobalKeyEvents_insert("CameraStrafeLeft", Accelerator(GDK_comma),
1026     ReferenceCaller<camera_t, Camera_MoveLeft_KeyDown>(camwnd.getCamera()),
1027     ReferenceCaller<camera_t, Camera_MoveLeft_KeyUp>(camwnd.getCamera())
1028   );
1029   GlobalKeyEvents_insert("CameraUp", Accelerator('D'),
1030     ReferenceCaller<camera_t, Camera_MoveUp_KeyDown>(camwnd.getCamera()),
1031     ReferenceCaller<camera_t, Camera_MoveUp_KeyUp>(camwnd.getCamera())
1032   );
1033   GlobalKeyEvents_insert("CameraDown", Accelerator('C'),
1034     ReferenceCaller<camera_t, Camera_MoveDown_KeyDown>(camwnd.getCamera()),
1035     ReferenceCaller<camera_t, Camera_MoveDown_KeyUp>(camwnd.getCamera())
1036   );
1037   GlobalKeyEvents_insert("CameraAngleDown", Accelerator('A'),
1038     ReferenceCaller<camera_t, Camera_PitchDown_KeyDown>(camwnd.getCamera()),
1039     ReferenceCaller<camera_t, Camera_PitchDown_KeyUp>(camwnd.getCamera())
1040   );
1041   GlobalKeyEvents_insert("CameraAngleUp", Accelerator('Z'),
1042     ReferenceCaller<camera_t, Camera_PitchUp_KeyDown>(camwnd.getCamera()),
1043     ReferenceCaller<camera_t, Camera_PitchUp_KeyUp>(camwnd.getCamera())
1044   );
1045
1046   GlobalKeyEvents_insert("CameraFreeMoveForward", Accelerator(GDK_Up),
1047     FreeMoveCameraMoveForwardKeyDownCaller(camwnd.getCamera()),
1048     FreeMoveCameraMoveForwardKeyUpCaller(camwnd.getCamera())
1049   );
1050   GlobalKeyEvents_insert("CameraFreeMoveBack", Accelerator(GDK_Down),
1051     FreeMoveCameraMoveBackKeyDownCaller(camwnd.getCamera()),
1052     FreeMoveCameraMoveBackKeyUpCaller(camwnd.getCamera())
1053   );
1054   GlobalKeyEvents_insert("CameraFreeMoveLeft", Accelerator(GDK_Left),
1055     FreeMoveCameraMoveLeftKeyDownCaller(camwnd.getCamera()),
1056     FreeMoveCameraMoveLeftKeyUpCaller(camwnd.getCamera())
1057   );
1058   GlobalKeyEvents_insert("CameraFreeMoveRight", Accelerator(GDK_Right),
1059     FreeMoveCameraMoveRightKeyDownCaller(camwnd.getCamera()),
1060     FreeMoveCameraMoveRightKeyUpCaller(camwnd.getCamera())
1061   );
1062   GlobalKeyEvents_insert("CameraFreeMoveUp", Accelerator('D'),
1063     FreeMoveCameraMoveUpKeyDownCaller(camwnd.getCamera()),
1064     FreeMoveCameraMoveUpKeyUpCaller(camwnd.getCamera())
1065   );
1066   GlobalKeyEvents_insert("CameraFreeMoveDown", Accelerator('C'),
1067     FreeMoveCameraMoveDownKeyDownCaller(camwnd.getCamera()),
1068     FreeMoveCameraMoveDownKeyUpCaller(camwnd.getCamera())
1069   );
1070
1071   GlobalCommands_insert("CameraForward", ReferenceCaller<camera_t, Camera_MoveForward_Discrete>(camwnd.getCamera()), Accelerator(GDK_Up));
1072   GlobalCommands_insert("CameraBack", ReferenceCaller<camera_t, Camera_MoveBack_Discrete>(camwnd.getCamera()), Accelerator(GDK_Down));
1073   GlobalCommands_insert("CameraLeft", ReferenceCaller<camera_t, Camera_RotateLeft_Discrete>(camwnd.getCamera()), Accelerator(GDK_Left));
1074   GlobalCommands_insert("CameraRight", ReferenceCaller<camera_t, Camera_RotateRight_Discrete>(camwnd.getCamera()), Accelerator(GDK_Right));
1075   GlobalCommands_insert("CameraStrafeRight", ReferenceCaller<camera_t, Camera_MoveRight_Discrete>(camwnd.getCamera()), Accelerator(GDK_period));
1076   GlobalCommands_insert("CameraStrafeLeft", ReferenceCaller<camera_t, Camera_MoveLeft_Discrete>(camwnd.getCamera()), Accelerator(GDK_comma));
1077
1078   GlobalCommands_insert("CameraUp", ReferenceCaller<camera_t, Camera_MoveUp_Discrete>(camwnd.getCamera()), Accelerator('D'));
1079   GlobalCommands_insert("CameraDown", ReferenceCaller<camera_t, Camera_MoveDown_Discrete>(camwnd.getCamera()), Accelerator('C'));
1080   GlobalCommands_insert("CameraAngleUp", ReferenceCaller<camera_t, Camera_PitchUp_Discrete>(camwnd.getCamera()), Accelerator('A'));
1081   GlobalCommands_insert("CameraAngleDown", ReferenceCaller<camera_t, Camera_PitchDown_Discrete>(camwnd.getCamera()), Accelerator('Z'));
1082 }
1083
1084 void CamWnd_Move_Enable(CamWnd& camwnd)
1085 {
1086   KeyEvent_connect("CameraForward");
1087   KeyEvent_connect("CameraBack");
1088   KeyEvent_connect("CameraLeft");
1089   KeyEvent_connect("CameraRight");
1090   KeyEvent_connect("CameraStrafeRight");
1091   KeyEvent_connect("CameraStrafeLeft");
1092   KeyEvent_connect("CameraUp");
1093   KeyEvent_connect("CameraDown");
1094   KeyEvent_connect("CameraAngleUp");
1095   KeyEvent_connect("CameraAngleDown");
1096 }
1097
1098 void CamWnd_Move_Disable(CamWnd& camwnd)
1099 {
1100   KeyEvent_disconnect("CameraForward");
1101   KeyEvent_disconnect("CameraBack");
1102   KeyEvent_disconnect("CameraLeft");
1103   KeyEvent_disconnect("CameraRight");
1104   KeyEvent_disconnect("CameraStrafeRight");
1105   KeyEvent_disconnect("CameraStrafeLeft");
1106   KeyEvent_disconnect("CameraUp");
1107   KeyEvent_disconnect("CameraDown");
1108   KeyEvent_disconnect("CameraAngleUp");
1109   KeyEvent_disconnect("CameraAngleDown");
1110 }
1111
1112 void CamWnd_Move_Discrete_Enable(CamWnd& camwnd)
1113 {
1114   command_connect_accelerator("CameraForward");
1115   command_connect_accelerator("CameraBack");
1116   command_connect_accelerator("CameraLeft");
1117   command_connect_accelerator("CameraRight");
1118   command_connect_accelerator("CameraStrafeRight");
1119   command_connect_accelerator("CameraStrafeLeft");
1120   command_connect_accelerator("CameraUp");
1121   command_connect_accelerator("CameraDown");
1122   command_connect_accelerator("CameraAngleUp");
1123   command_connect_accelerator("CameraAngleDown");
1124 }
1125
1126 void CamWnd_Move_Discrete_Disable(CamWnd& camwnd)
1127 {
1128   command_disconnect_accelerator("CameraForward");
1129   command_disconnect_accelerator("CameraBack");
1130   command_disconnect_accelerator("CameraLeft");
1131   command_disconnect_accelerator("CameraRight");
1132   command_disconnect_accelerator("CameraStrafeRight");
1133   command_disconnect_accelerator("CameraStrafeLeft");
1134   command_disconnect_accelerator("CameraUp");
1135   command_disconnect_accelerator("CameraDown");
1136   command_disconnect_accelerator("CameraAngleUp");
1137   command_disconnect_accelerator("CameraAngleDown");
1138 }
1139
1140 void CamWnd_Move_Discrete_Import(CamWnd& camwnd, bool value)
1141 {
1142   if(g_camwindow_globals_private.m_bCamDiscrete)
1143   {
1144     CamWnd_Move_Discrete_Disable(camwnd);
1145   }
1146   else
1147   {
1148     CamWnd_Move_Disable(camwnd);
1149   }
1150
1151   g_camwindow_globals_private.m_bCamDiscrete = value;
1152
1153   if(g_camwindow_globals_private.m_bCamDiscrete)
1154   {
1155     CamWnd_Move_Discrete_Enable(camwnd);
1156   }
1157   else
1158   {
1159     CamWnd_Move_Enable(camwnd);
1160   }
1161 }
1162
1163 void CamWnd_Move_Discrete_Import(bool value)
1164 {
1165   if(g_camwnd != 0)
1166   {
1167     CamWnd_Move_Discrete_Import(*g_camwnd, value);
1168   }
1169   else
1170   {
1171     g_camwindow_globals_private.m_bCamDiscrete = value;
1172   }
1173 }
1174
1175
1176
1177 void CamWnd_Add_Handlers_Move(CamWnd& camwnd)
1178 {
1179   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);
1180   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);
1181   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);
1182
1183   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);
1184
1185   if(g_camwindow_globals_private.m_bCamDiscrete)
1186   {
1187     CamWnd_Move_Discrete_Enable(camwnd);
1188   }
1189   else
1190   {
1191     CamWnd_Move_Enable(camwnd);
1192   }
1193 }
1194
1195 void CamWnd_Remove_Handlers_Move(CamWnd& camwnd)
1196 {
1197   g_signal_handler_disconnect(G_OBJECT(camwnd.m_gl_widget), camwnd.m_selection_button_press_handler);
1198   g_signal_handler_disconnect(G_OBJECT(camwnd.m_gl_widget), camwnd.m_selection_button_release_handler);
1199   g_signal_handler_disconnect(G_OBJECT(camwnd.m_gl_widget), camwnd.m_selection_motion_handler);
1200
1201   g_signal_handler_disconnect(G_OBJECT(camwnd.m_gl_widget), camwnd.m_freelook_button_press_handler);
1202
1203   if(g_camwindow_globals_private.m_bCamDiscrete)
1204   {
1205     CamWnd_Move_Discrete_Disable(camwnd);
1206   }
1207   else
1208   {
1209     CamWnd_Move_Disable(camwnd);
1210   }
1211 }
1212
1213 void CamWnd_Add_Handlers_FreeMove(CamWnd& camwnd)
1214 {
1215   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);
1216   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);
1217   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);
1218
1219   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);
1220
1221   KeyEvent_connect("CameraFreeMoveForward");
1222   KeyEvent_connect("CameraFreeMoveBack");
1223   KeyEvent_connect("CameraFreeMoveLeft");
1224   KeyEvent_connect("CameraFreeMoveRight");
1225   KeyEvent_connect("CameraFreeMoveUp");
1226   KeyEvent_connect("CameraFreeMoveDown");
1227 }
1228
1229 void CamWnd_Remove_Handlers_FreeMove(CamWnd& camwnd)
1230 {
1231   KeyEvent_disconnect("CameraFreeMoveForward");
1232   KeyEvent_disconnect("CameraFreeMoveBack");
1233   KeyEvent_disconnect("CameraFreeMoveLeft");
1234   KeyEvent_disconnect("CameraFreeMoveRight");
1235   KeyEvent_disconnect("CameraFreeMoveUp");
1236   KeyEvent_disconnect("CameraFreeMoveDown");
1237
1238   g_signal_handler_disconnect(G_OBJECT(camwnd.m_gl_widget), camwnd.m_selection_button_press_handler);
1239   g_signal_handler_disconnect(G_OBJECT(camwnd.m_gl_widget), camwnd.m_selection_button_release_handler);
1240   g_signal_handler_disconnect(G_OBJECT(camwnd.m_gl_widget), camwnd.m_selection_motion_handler);
1241
1242   g_signal_handler_disconnect(G_OBJECT(camwnd.m_gl_widget), camwnd.m_freelook_button_press_handler);
1243 }
1244
1245 CamWnd::CamWnd() :
1246   m_view(true),
1247   m_Camera(&m_view, CamWndQueueDraw(*this)),
1248   m_cameraview(m_Camera, &m_view, ReferenceCaller<CamWnd, CamWnd_Update>(*this)),
1249   m_gl_widget(glwidget_new(TRUE)),
1250   m_window_observer(NewWindowObserver()),
1251   m_XORRectangle(m_gl_widget),
1252   m_deferredDraw(WidgetQueueDrawCaller(*m_gl_widget)),
1253   m_deferred_motion(selection_motion, m_window_observer),
1254   m_selection_button_press_handler(0),
1255   m_selection_button_release_handler(0),
1256   m_selection_motion_handler(0),
1257   m_freelook_button_press_handler(0),
1258   m_drawing(false)
1259 {
1260   m_bFreeMove = false;
1261
1262   GlobalWindowObservers_add(m_window_observer);
1263   GlobalWindowObservers_connectWidget(m_gl_widget);
1264
1265   m_window_observer->setRectangleDrawCallback(ReferenceCaller1<CamWnd, rect_t, camwnd_update_xor_rectangle>(*this));
1266   m_window_observer->setView(m_view);
1267
1268   gtk_widget_ref(m_gl_widget);
1269
1270   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);
1271   GTK_WIDGET_SET_FLAGS (m_gl_widget, GTK_CAN_FOCUS);
1272
1273   m_sizeHandler = g_signal_connect(G_OBJECT(m_gl_widget), "size_allocate", G_CALLBACK(camera_size_allocate), this);
1274   m_exposeHandler = g_signal_connect(G_OBJECT(m_gl_widget), "expose_event", G_CALLBACK(camera_expose), this);
1275
1276   Map_addValidCallback(g_map, DeferredDrawOnMapValidChangedCaller(m_deferredDraw));
1277
1278   CamWnd_registerCommands(*this);
1279
1280   CamWnd_Add_Handlers_Move(*this);
1281
1282   g_signal_connect(G_OBJECT(m_gl_widget), "scroll_event", G_CALLBACK(wheelmove_scroll), this);
1283
1284   AddSceneChangeCallback(ReferenceCaller<CamWnd, CamWnd_Update>(*this));
1285
1286   PressedButtons_connect(g_pressedButtons, m_gl_widget);
1287 }
1288
1289 CamWnd::~CamWnd()
1290 {
1291   if(m_bFreeMove)
1292   {
1293     DisableFreeMove();
1294   }
1295
1296   CamWnd_Remove_Handlers_Move(*this);
1297
1298   g_signal_handler_disconnect(G_OBJECT(m_gl_widget), m_sizeHandler);
1299   g_signal_handler_disconnect(G_OBJECT(m_gl_widget), m_exposeHandler);
1300
1301   gtk_widget_unref(m_gl_widget);
1302
1303   m_window_observer->release();
1304 }
1305
1306 class FloorHeightWalker : public scene::Graph::Walker
1307 {
1308   float m_current;
1309   float& m_bestUp;
1310   float& m_bestDown;
1311 public:
1312   FloorHeightWalker(float current, float& bestUp, float& bestDown) :
1313       m_current(current), m_bestUp(bestUp), m_bestDown(bestDown)
1314   {
1315     bestUp = g_MaxWorldCoord;
1316     bestDown = -g_MaxWorldCoord;
1317   }
1318   bool pre(const scene::Path& path, scene::Instance& instance) const
1319   {
1320     if(path.top().get().visible()
1321       && Node_isBrush(path.top())) // this node is a floor
1322     {
1323       const AABB& aabb = instance.worldAABB();
1324       float floorHeight = aabb.origin.z() + aabb.extents.z();
1325       if(floorHeight > m_current && floorHeight < m_bestUp)
1326       {
1327         m_bestUp = floorHeight;
1328       }
1329       if(floorHeight < m_current && floorHeight > m_bestDown)
1330       {
1331         m_bestDown = floorHeight;
1332       }
1333     }
1334     return true;
1335   }
1336 };
1337
1338 void CamWnd::Cam_ChangeFloor(bool up)
1339 {
1340   float current = m_Camera.origin[2] - 48;
1341   float bestUp;
1342   float bestDown;
1343   GlobalSceneGraph().traverse(FloorHeightWalker(current, bestUp, bestDown));
1344
1345   if(up && bestUp != g_MaxWorldCoord)
1346   {
1347     current = bestUp;
1348   }
1349   if(!up && bestDown != -g_MaxWorldCoord)
1350   {
1351     current = bestDown;
1352   }
1353
1354   m_Camera.origin[2] = current + 48;
1355   Camera_updateModelview(getCamera());
1356   CamWnd_Update(*this);
1357   CameraMovedNotify();
1358 }
1359
1360
1361 #if 0
1362
1363 // button_press
1364   Sys_GetCursorPos(&m_PositionDragCursorX, &m_PositionDragCursorY);
1365
1366 // motion
1367   if ( (m_bFreeMove && (buttons == (RAD_CONTROL|RAD_SHIFT)))
1368     || (!m_bFreeMove && (buttons == (RAD_RBUTTON|RAD_CONTROL))) )
1369   {
1370     Cam_PositionDrag();
1371     CamWnd_Update(camwnd);
1372     CameraMovedNotify();
1373     return;
1374   }
1375
1376 void CamWnd::Cam_PositionDrag()
1377 {
1378   int x, y;
1379
1380   Sys_GetCursorPos(GTK_WINDOW(m_gl_widget), &x, &y);
1381   if (x != m_PositionDragCursorX || y != m_PositionDragCursorY)
1382   {
1383     x -= m_PositionDragCursorX;
1384     vector3_add(m_Camera.origin, vector3_scaled(m_Camera.vright, x));
1385     y -= m_PositionDragCursorY;
1386     m_Camera.origin[2] -= y;
1387     Camera_updateModelview();
1388     CamWnd_Update(camwnd);
1389     CameraMovedNotify();
1390
1391     Sys_SetCursorPos(GTK_WINDOW(m_parent), m_PositionDragCursorX, m_PositionDragCursorY);
1392   }
1393 }
1394 #endif
1395
1396
1397 // NOTE TTimo if there's an OS-level focus out of the application
1398 //   then we can release the camera cursor grab
1399 static gboolean camwindow_freemove_focusout(GtkWidget* widget, GdkEventFocus* event, gpointer data)
1400 {
1401   reinterpret_cast<CamWnd*>(data)->DisableFreeMove();
1402   return FALSE;
1403 }
1404
1405 void CamWnd::EnableFreeMove()
1406 {
1407   //globalOutputStream() << "EnableFreeMove\n";
1408
1409   ASSERT_MESSAGE(!m_bFreeMove, "EnableFreeMove: free-move was already enabled");
1410   m_bFreeMove = true;
1411   Camera_clearMovementFlags(getCamera(), MOVE_ALL);
1412
1413   CamWnd_Remove_Handlers_Move(*this);
1414   CamWnd_Add_Handlers_FreeMove(*this);
1415
1416   gtk_window_set_focus(m_parent, m_gl_widget);
1417   m_freemove_handle_focusout = g_signal_connect(G_OBJECT(m_gl_widget), "focus_out_event", G_CALLBACK(camwindow_freemove_focusout), this);
1418   m_freezePointer.freeze_pointer(m_parent, Camera_motionDelta, &m_Camera);
1419
1420   CamWnd_Update(*this);
1421 }
1422
1423 void CamWnd::DisableFreeMove()
1424 {
1425   //globalOutputStream() << "DisableFreeMove\n";
1426
1427   ASSERT_MESSAGE(m_bFreeMove, "DisableFreeMove: free-move was not enabled");
1428   m_bFreeMove = false;
1429   Camera_clearMovementFlags(getCamera(), MOVE_ALL);
1430
1431   CamWnd_Remove_Handlers_FreeMove(*this);
1432   CamWnd_Add_Handlers_Move(*this);
1433
1434   m_freezePointer.unfreeze_pointer(m_parent);
1435   g_signal_handler_disconnect(G_OBJECT(m_gl_widget), m_freemove_handle_focusout);
1436
1437   CamWnd_Update(*this);
1438 }
1439
1440
1441 #include "renderer.h"
1442
1443 class CamRenderer: public Renderer
1444 {
1445   struct state_type
1446   {
1447     state_type() : m_highlight(0), m_state(0), m_lights(0)
1448     {
1449     }
1450     unsigned int m_highlight;
1451     Shader* m_state;
1452     const LightList* m_lights;
1453   };
1454
1455   std::vector<state_type> m_state_stack;
1456   RenderStateFlags m_globalstate;
1457   Shader* m_state_select0;
1458   Shader* m_state_select1;
1459   const Vector3& m_viewer;
1460
1461 public:
1462   CamRenderer(RenderStateFlags globalstate, Shader* select0, Shader* select1, const Vector3& viewer) :
1463     m_globalstate(globalstate),
1464     m_state_select0(select0),
1465     m_state_select1(select1),
1466     m_viewer(viewer)
1467   {
1468     ASSERT_NOTNULL(select0);
1469     ASSERT_NOTNULL(select1);
1470     m_state_stack.push_back(state_type());
1471   }
1472
1473   void SetState(Shader* state, EStyle style)
1474   {
1475     ASSERT_NOTNULL(state);
1476     if(style == eFullMaterials)
1477     {
1478       m_state_stack.back().m_state = state;
1479     }
1480   }
1481   const EStyle getStyle() const
1482   {
1483     return eFullMaterials;
1484   }
1485   void PushState()
1486   {
1487     m_state_stack.push_back(m_state_stack.back());
1488   }
1489   void PopState()
1490   {
1491     ASSERT_MESSAGE(!m_state_stack.empty(), "popping empty stack");
1492     m_state_stack.pop_back();
1493   }
1494   void Highlight(EHighlightMode mode, bool bEnable = true)
1495   {
1496     (bEnable)
1497       ? m_state_stack.back().m_highlight |= mode
1498       : m_state_stack.back().m_highlight &= ~mode;
1499   }
1500   void setLights(const LightList& lights)
1501   {
1502     m_state_stack.back().m_lights = &lights;
1503   }
1504   void addRenderable(const OpenGLRenderable& renderable, const Matrix4& world)
1505   {
1506     if(m_state_stack.back().m_highlight & ePrimitive)
1507     {
1508       m_state_select0->addRenderable(renderable, world, m_state_stack.back().m_lights);
1509     }
1510     if(m_state_stack.back().m_highlight & eFace)
1511     {
1512       m_state_select1->addRenderable(renderable, world, m_state_stack.back().m_lights);
1513     }
1514
1515     m_state_stack.back().m_state->addRenderable(renderable, world, m_state_stack.back().m_lights);
1516   }
1517
1518   void render(const Matrix4& modelview, const Matrix4& projection)
1519   {
1520     GlobalShaderCache().render(m_globalstate, modelview, projection, m_viewer);
1521   }
1522 };
1523
1524 /*
1525 ==============
1526 Cam_Draw
1527 ==============
1528 */
1529
1530 void ShowStatsToggle()
1531 {
1532   g_camwindow_globals_private.m_showStats ^= 1;
1533 }
1534 typedef FreeCaller<ShowStatsToggle> ShowStatsToggleCaller;
1535
1536 void ShowStatsExport(const BoolImportCallback& importer)
1537 {
1538   importer(g_camwindow_globals_private.m_showStats);
1539 }
1540 typedef FreeCaller1<const BoolImportCallback&, ShowStatsExport> ShowStatsExportCaller;
1541
1542 ShowStatsExportCaller g_show_stats_caller;
1543 BoolExportCallback g_show_stats_callback(g_show_stats_caller);
1544 ToggleItem g_show_stats(g_show_stats_callback);
1545
1546 void CamWnd::Cam_Draw()
1547 {
1548   glViewport(0, 0, m_Camera.width, m_Camera.height);
1549 #if 0
1550   GLint viewprt[4];
1551   glGetIntegerv (GL_VIEWPORT, viewprt);
1552 #endif
1553
1554   // enable depth buffer writes
1555   glDepthMask(GL_TRUE);
1556
1557   Vector3 clearColour(0, 0, 0);
1558   if(m_Camera.draw_mode != cd_lighting)
1559   {
1560     clearColour = g_camwindow_globals.color_cameraback;
1561   }
1562
1563   glClearColor(clearColour[0], clearColour[1], clearColour[2], 0);
1564   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
1565
1566   extern void Renderer_ResetStats();
1567   Renderer_ResetStats();
1568   extern void Cull_ResetStats();
1569   Cull_ResetStats();
1570
1571   glMatrixMode(GL_PROJECTION);
1572   glLoadMatrixf(reinterpret_cast<const float*>(&m_Camera.projection));
1573
1574   glMatrixMode(GL_MODELVIEW);
1575   glLoadMatrixf(reinterpret_cast<const float*>(&m_Camera.modelview));
1576
1577
1578   // one directional light source directly behind the viewer
1579   {
1580     GLfloat inverse_cam_dir[4], ambient[4], diffuse[4];//, material[4];
1581
1582     ambient[0] = ambient[1] = ambient[2] = 0.4f;
1583     ambient[3] = 1.0f;
1584     diffuse[0] = diffuse[1] = diffuse[2] = 0.4f;
1585     diffuse[3] = 1.0f;
1586     //material[0] = material[1] = material[2] = 0.8f;
1587     //material[3] = 1.0f;
1588
1589     inverse_cam_dir[0] = m_Camera.vpn[0];
1590     inverse_cam_dir[1] = m_Camera.vpn[1];
1591     inverse_cam_dir[2] = m_Camera.vpn[2];
1592     inverse_cam_dir[3] = 0;
1593
1594     glLightfv(GL_LIGHT0, GL_POSITION, inverse_cam_dir);
1595
1596     glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
1597     glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
1598
1599     glEnable(GL_LIGHT0);
1600   }
1601
1602
1603   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;
1604   switch (m_Camera.draw_mode)
1605   {
1606   case cd_wire:
1607     break;
1608   case cd_solid:
1609     globalstate |= RENDER_FILL
1610       | RENDER_LIGHTING
1611       | RENDER_SMOOTH
1612       | RENDER_SCALED;
1613     break;
1614   case cd_texture:
1615     globalstate |= RENDER_FILL
1616       | RENDER_LIGHTING
1617       | RENDER_TEXTURE
1618       | RENDER_SMOOTH
1619       | RENDER_SCALED;
1620     break;
1621   case cd_lighting:
1622     globalstate |= RENDER_FILL
1623       | RENDER_LIGHTING
1624       | RENDER_TEXTURE
1625       | RENDER_SMOOTH
1626       | RENDER_SCALED
1627       | RENDER_BUMP
1628       | RENDER_PROGRAM
1629       | RENDER_SCREEN;
1630     break;
1631   default:
1632     globalstate = 0;
1633     break;
1634   }
1635
1636   if(!g_xywindow_globals.m_bNoStipple)
1637   {
1638     globalstate |= RENDER_LINESTIPPLE|RENDER_POLYGONSTIPPLE;
1639   }
1640
1641   {
1642     CamRenderer renderer(globalstate, m_state_select2, m_state_select1, m_view.getViewer());
1643
1644     Scene_Render(renderer, m_view);
1645
1646     renderer.render(m_Camera.modelview, m_Camera.projection);
1647   }
1648
1649   // prepare for 2d stuff
1650   glColor4f(1, 1, 1, 1);
1651   glDisable(GL_BLEND);
1652   glMatrixMode(GL_PROJECTION);
1653   glLoadIdentity();
1654   glOrtho(0, (float)m_Camera.width, 0, (float)m_Camera.height, -100, 100);
1655   glScalef(1, -1, 1);
1656   glTranslatef(0, -(float)m_Camera.height, 0);
1657   glMatrixMode(GL_MODELVIEW);
1658   glLoadIdentity();
1659
1660   if(GlobalOpenGL().GL_1_3())
1661   {
1662     glClientActiveTexture(GL_TEXTURE0);
1663     glActiveTexture(GL_TEXTURE0);
1664   }
1665
1666   glDisableClientState(GL_TEXTURE_COORD_ARRAY);
1667   glDisableClientState(GL_NORMAL_ARRAY);
1668   glDisableClientState(GL_COLOR_ARRAY);
1669
1670   glDisable(GL_TEXTURE_2D);
1671   glDisable(GL_LIGHTING);
1672   glDisable(GL_COLOR_MATERIAL);
1673   glDisable(GL_DEPTH_TEST);
1674   glColor3f( 1.f, 1.f, 1.f );
1675   glLineWidth(1);
1676
1677   // draw the crosshair
1678   if (m_bFreeMove)
1679   {
1680     glBegin( GL_LINES );
1681     glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f + 6 );
1682     glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f + 2 );
1683     glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f - 6 );
1684     glVertex2f( (float)m_Camera.width / 2.f, (float)m_Camera.height / 2.f - 2 );
1685     glVertex2f( (float)m_Camera.width / 2.f + 6, (float)m_Camera.height / 2.f );
1686     glVertex2f( (float)m_Camera.width / 2.f + 2, (float)m_Camera.height / 2.f );
1687     glVertex2f( (float)m_Camera.width / 2.f - 6, (float)m_Camera.height / 2.f );
1688     glVertex2f( (float)m_Camera.width / 2.f - 2, (float)m_Camera.height / 2.f );
1689     glEnd();
1690   }
1691
1692   if(g_camwindow_globals_private.m_showStats)
1693   {
1694     glRasterPos3f(1.0f, static_cast<float>(m_Camera.height) - 1.0f, 0.0f);
1695     extern const char* Renderer_GetStats();
1696     GlobalOpenGL().drawString(Renderer_GetStats());
1697
1698     glRasterPos3f(1.0f, static_cast<float>(m_Camera.height) - 11.0f, 0.0f);
1699     extern const char* Cull_GetStats();
1700     GlobalOpenGL().drawString(Cull_GetStats());
1701   }
1702
1703   // bind back to the default texture so that we don't have problems
1704   // elsewhere using/modifying texture maps between contexts
1705   glBindTexture( GL_TEXTURE_2D, 0 );
1706 }
1707
1708 void CamWnd::draw()
1709 {
1710   m_drawing = true;
1711
1712   //globalOutputStream() << "draw...\n";
1713   if (glwidget_make_current(m_gl_widget) != FALSE)
1714   {
1715     if(Map_Valid(g_map) && ScreenUpdates_Enabled())
1716     {
1717       GlobalOpenGL_debugAssertNoErrors();
1718       Cam_Draw();
1719       GlobalOpenGL_debugAssertNoErrors();
1720       //qglFinish();
1721
1722       m_XORRectangle.set(rectangle_t());
1723     }
1724
1725     glwidget_swap_buffers(m_gl_widget);
1726   }
1727
1728   m_drawing = false;
1729 }
1730
1731 void CamWnd::BenchMark()
1732 {
1733   double dStart = Sys_DoubleTime();
1734   for (int i=0 ; i < 100 ; i++)
1735   {
1736     Vector3 angles;
1737     angles[CAMERA_ROLL] = 0;
1738     angles[CAMERA_PITCH] = 0;
1739     angles[CAMERA_YAW] = static_cast<float>(i * (360.0 / 100.0));
1740     Camera_setAngles(*this, angles);
1741   }
1742   double dEnd = Sys_DoubleTime();
1743   globalOutputStream() << FloatFormat(dEnd - dStart, 5, 2) << " seconds\n";
1744 }
1745
1746
1747 void fill_view_camera_menu(GtkMenu* menu)
1748 {
1749   create_check_menu_item_with_mnemonic(menu, "Camera View", "ToggleCamera");
1750 }
1751
1752 void GlobalCamera_ResetAngles()
1753 {
1754   CamWnd& camwnd = *g_camwnd;
1755   Vector3 angles;
1756   angles[CAMERA_ROLL] = angles[CAMERA_PITCH] = 0;
1757   angles[CAMERA_YAW] = static_cast<float>(22.5 * floor((Camera_getAngles(camwnd)[CAMERA_YAW]+11)/22.5));
1758   Camera_setAngles(camwnd, angles);
1759 }
1760
1761 void Camera_ChangeFloorUp()
1762 {
1763   CamWnd& camwnd = *g_camwnd;
1764   camwnd.Cam_ChangeFloor (true);
1765 }
1766
1767 void Camera_ChangeFloorDown()
1768 {
1769   CamWnd& camwnd = *g_camwnd;
1770   camwnd.Cam_ChangeFloor (false);
1771 }
1772
1773 void Camera_CubeIn()
1774 {
1775   CamWnd& camwnd = *g_camwnd;
1776   g_camwindow_globals.m_nCubicScale--;
1777   if (g_camwindow_globals.m_nCubicScale < 1)
1778     g_camwindow_globals.m_nCubicScale = 1;
1779   Camera_updateProjection(camwnd.getCamera());
1780   CamWnd_Update(camwnd);
1781   g_pParentWnd->SetGridStatus();
1782 }
1783
1784 void Camera_CubeOut()
1785 {
1786   CamWnd& camwnd = *g_camwnd;
1787   g_camwindow_globals.m_nCubicScale++;
1788   if (g_camwindow_globals.m_nCubicScale > 23)
1789     g_camwindow_globals.m_nCubicScale = 23;
1790   Camera_updateProjection(camwnd.getCamera());
1791   CamWnd_Update(camwnd);
1792   g_pParentWnd->SetGridStatus();
1793 }
1794
1795 bool Camera_GetFarClip()
1796 {
1797   return g_camwindow_globals_private.m_bCubicClipping;
1798 }
1799
1800 BoolExportCaller g_getfarclip_caller(g_camwindow_globals_private.m_bCubicClipping);
1801 ToggleItem g_getfarclip_item(g_getfarclip_caller);
1802
1803 void Camera_SetFarClip(bool value)
1804 {
1805   CamWnd& camwnd = *g_camwnd;
1806   g_camwindow_globals_private.m_bCubicClipping = value;
1807   g_getfarclip_item.update();
1808   Camera_updateProjection(camwnd.getCamera());
1809   CamWnd_Update(camwnd);
1810 }
1811
1812 void Camera_ToggleFarClip()
1813 {
1814   Camera_SetFarClip(!Camera_GetFarClip());
1815 }
1816
1817
1818 void CamWnd_constructToolbar(GtkToolbar* toolbar)
1819 {
1820   toolbar_append_toggle_button(toolbar, "Cubic clip the camera view (\\)", "view_cubicclipping.bmp", "ToggleCubicClip");
1821 }
1822
1823 void CamWnd_registerShortcuts()
1824 {
1825   toggle_add_accelerator("ToggleCubicClip");
1826
1827   if(g_pGameDescription->mGameType == "doom3")
1828   {
1829     command_connect_accelerator("TogglePreview");
1830   }
1831
1832   command_connect_accelerator("CameraSpeedInc");
1833   command_connect_accelerator("CameraSpeedDec");
1834 }
1835
1836
1837 void GlobalCamera_Benchmark()
1838 {
1839   CamWnd& camwnd = *g_camwnd;
1840   camwnd.BenchMark();
1841 }
1842
1843 void GlobalCamera_Update()
1844 {
1845   CamWnd& camwnd = *g_camwnd;
1846   CamWnd_Update(camwnd);
1847 }
1848
1849 camera_draw_mode CamWnd_GetMode()
1850 {
1851   return camera_t::draw_mode;
1852 }
1853 void CamWnd_SetMode(camera_draw_mode mode)
1854 {
1855   ShaderCache_setBumpEnabled(mode == cd_lighting);
1856   camera_t::draw_mode = mode;
1857   if(g_camwnd != 0)
1858   {
1859     CamWnd_Update(*g_camwnd);
1860   }
1861 }
1862
1863 void CamWnd_TogglePreview(void)
1864 {
1865   // gametype must be doom3 for this function to work
1866   // if the gametype is not doom3 something is wrong with the
1867   // global command list or somebody else calls this function.
1868   ASSERT_MESSAGE(g_pGameDescription->mGameType == "doom3", "CamWnd_TogglePreview called although mGameType is not doom3 compatible");
1869
1870   // switch between textured and lighting mode
1871   CamWnd_SetMode((CamWnd_GetMode() == cd_lighting) ? cd_texture : cd_lighting);
1872 }
1873
1874
1875 CameraModel* g_camera_model = 0;
1876
1877 void CamWnd_LookThroughCamera(CamWnd& camwnd)
1878 {
1879   if(g_camera_model != 0)
1880   {
1881     CamWnd_Add_Handlers_Move(camwnd);
1882     g_camera_model->setCameraView(0, Callback());
1883     g_camera_model = 0;
1884     Camera_updateModelview(camwnd.getCamera());
1885     Camera_updateProjection(camwnd.getCamera());
1886     CamWnd_Update(camwnd);
1887   }
1888 }
1889
1890 inline CameraModel* Instance_getCameraModel(scene::Instance& instance)
1891 {
1892   return InstanceTypeCast<CameraModel>::cast(instance);
1893 }
1894
1895 void CamWnd_LookThroughSelected(CamWnd& camwnd)
1896 {
1897   if(g_camera_model != 0)
1898   {
1899     CamWnd_LookThroughCamera(camwnd);
1900   }
1901
1902   if(GlobalSelectionSystem().countSelected() != 0)
1903   {
1904     scene::Instance& instance = GlobalSelectionSystem().ultimateSelected();
1905     CameraModel* cameraModel = Instance_getCameraModel(instance);
1906     if(cameraModel != 0)
1907     {
1908       CamWnd_Remove_Handlers_Move(camwnd);
1909       g_camera_model = cameraModel;
1910       g_camera_model->setCameraView(&camwnd.getCameraView(), ReferenceCaller<CamWnd, CamWnd_LookThroughCamera>(camwnd));
1911     }
1912   }
1913 }
1914
1915 void GlobalCamera_LookThroughSelected()
1916 {
1917   CamWnd_LookThroughSelected(*g_camwnd);
1918 }
1919
1920 void GlobalCamera_LookThroughCamera()
1921 {
1922   CamWnd_LookThroughCamera(*g_camwnd);
1923 }
1924
1925
1926 void RenderModeImport(int value)
1927 {
1928   switch(value)
1929   {
1930   case 0:
1931     CamWnd_SetMode(cd_wire);
1932     break;
1933   case 1:
1934     CamWnd_SetMode(cd_solid);
1935     break;
1936   case 2:
1937     CamWnd_SetMode(cd_texture);
1938     break;
1939   case 3:
1940     CamWnd_SetMode(cd_lighting);
1941     break;
1942   default:
1943     CamWnd_SetMode(cd_texture);
1944   }
1945 }
1946 typedef FreeCaller1<int, RenderModeImport> RenderModeImportCaller;
1947
1948 void RenderModeExport(const IntImportCallback& importer)
1949 {
1950   switch(CamWnd_GetMode())
1951   {
1952   case cd_wire:
1953     importer(0);
1954     break;
1955   case cd_solid:
1956     importer(1);
1957     break;
1958   case cd_texture:
1959     importer(2);
1960     break;
1961   case cd_lighting:
1962     importer(3);
1963     break;
1964   }
1965 }
1966 typedef FreeCaller1<const IntImportCallback&, RenderModeExport> RenderModeExportCaller;
1967
1968 void Camera_constructPreferences(PreferencesPage& page)
1969 {
1970   page.appendSlider("Movement Speed", g_camwindow_globals_private.m_nMoveSpeed, TRUE, 0, 0, 100, MIN_CAM_SPEED, MAX_CAM_SPEED, 1, 10, 10);
1971   page.appendCheckBox("", "Link strafe speed to movement speed", g_camwindow_globals_private.m_bCamLinkSpeed);
1972   page.appendSlider("Rotation Speed", g_camwindow_globals_private.m_nAngleSpeed, TRUE, 0, 0, 3, 1, 180, 1, 10, 10);
1973   page.appendCheckBox("", "Invert mouse vertical axis", g_camwindow_globals_private.m_bCamInverseMouse);
1974   page.appendCheckBox(
1975     "", "Discrete movement",
1976     FreeCaller1<bool, CamWnd_Move_Discrete_Import>(),
1977     BoolExportCaller(g_camwindow_globals_private.m_bCamDiscrete)
1978   );
1979   page.appendCheckBox(
1980     "", "Enable far-clip plane",
1981     FreeCaller1<bool, Camera_SetFarClip>(),
1982     BoolExportCaller(g_camwindow_globals_private.m_bCubicClipping)
1983   );
1984
1985   if(g_pGameDescription->mGameType == "doom3")
1986   {
1987     const char* render_mode[] = { "Wireframe", "Flatshade", "Textured", "Lighting" };
1988
1989     page.appendCombo(
1990       "Render Mode",
1991       STRING_ARRAY_RANGE(render_mode),
1992       IntImportCallback(RenderModeImportCaller()),
1993       IntExportCallback(RenderModeExportCaller())
1994     );
1995   }
1996   else
1997   {
1998     const char* render_mode[] = { "Wireframe", "Flatshade", "Textured" };
1999
2000     page.appendCombo(
2001       "Render Mode",
2002       STRING_ARRAY_RANGE(render_mode),
2003       IntImportCallback(RenderModeImportCaller()),
2004       IntExportCallback(RenderModeExportCaller())
2005     );
2006   }
2007
2008     const char* strafe_mode[] = { "Both", "Forward", "Up" };
2009
2010     page.appendCombo(
2011       "Strafe Mode",
2012       g_camwindow_globals_private.m_nStrafeMode,
2013       STRING_ARRAY_RANGE(strafe_mode)
2014     );
2015 }
2016 void Camera_constructPage(PreferenceGroup& group)
2017 {
2018   PreferencesPage page(group.createPage("Camera", "Camera View Preferences"));
2019   Camera_constructPreferences(page);
2020 }
2021 void Camera_registerPreferencesPage()
2022 {
2023   PreferencesDialog_addSettingsPage(FreeCaller1<PreferenceGroup&, Camera_constructPage>());
2024 }
2025
2026 #include "preferencesystem.h"
2027 #include "stringio.h"
2028 #include "dialog.h"
2029
2030 typedef FreeCaller1<bool, CamWnd_Move_Discrete_Import> CamWndMoveDiscreteImportCaller;
2031
2032 void CameraSpeed_increase()
2033 {
2034   if(g_camwindow_globals_private.m_nMoveSpeed <= (MAX_CAM_SPEED - CAM_SPEED_STEP - 10))
2035   {
2036     g_camwindow_globals_private.m_nMoveSpeed += CAM_SPEED_STEP;
2037   } else {
2038     g_camwindow_globals_private.m_nMoveSpeed = MAX_CAM_SPEED - 10;
2039   }
2040 }
2041
2042 void CameraSpeed_decrease()
2043 {
2044   if(g_camwindow_globals_private.m_nMoveSpeed >= (MIN_CAM_SPEED + CAM_SPEED_STEP))
2045   {
2046     g_camwindow_globals_private.m_nMoveSpeed -= CAM_SPEED_STEP;
2047   } else {
2048     g_camwindow_globals_private.m_nMoveSpeed = MIN_CAM_SPEED;
2049   }
2050 }
2051
2052 /// \brief Initialisation for things that have the same lifespan as this module.
2053 void CamWnd_Construct()
2054 {
2055   GlobalCommands_insert("CenterView", FreeCaller<GlobalCamera_ResetAngles>(), Accelerator(GDK_End));
2056
2057   GlobalToggles_insert("ToggleCubicClip", FreeCaller<Camera_ToggleFarClip>(), ToggleItem::AddCallbackCaller(g_getfarclip_item), Accelerator('\\', (GdkModifierType)GDK_CONTROL_MASK));
2058   GlobalCommands_insert("CubicClipZoomIn", FreeCaller<Camera_CubeIn>(), Accelerator('[', (GdkModifierType)GDK_CONTROL_MASK));
2059   GlobalCommands_insert("CubicClipZoomOut", FreeCaller<Camera_CubeOut>(), Accelerator(']', (GdkModifierType)GDK_CONTROL_MASK));
2060
2061   GlobalCommands_insert("UpFloor", FreeCaller<Camera_ChangeFloorUp>(), Accelerator(GDK_Prior));
2062   GlobalCommands_insert("DownFloor", FreeCaller<Camera_ChangeFloorDown>(), Accelerator(GDK_Next));
2063
2064   GlobalToggles_insert("ToggleCamera", ToggleShown::ToggleCaller(g_camera_shown), ToggleItem::AddCallbackCaller(g_camera_shown.m_item), Accelerator('C', (GdkModifierType)(GDK_SHIFT_MASK|GDK_CONTROL_MASK)));
2065   GlobalCommands_insert("LookThroughSelected", FreeCaller<GlobalCamera_LookThroughSelected>());
2066   GlobalCommands_insert("LookThroughCamera", FreeCaller<GlobalCamera_LookThroughCamera>());
2067
2068   if(g_pGameDescription->mGameType == "doom3")
2069   {
2070     GlobalCommands_insert("TogglePreview", FreeCaller<CamWnd_TogglePreview>(), Accelerator(GDK_F3));
2071   }
2072
2073   GlobalCommands_insert("CameraSpeedInc", FreeCaller<CameraSpeed_increase>(), Accelerator(GDK_KP_Add, (GdkModifierType)GDK_SHIFT_MASK));
2074   GlobalCommands_insert("CameraSpeedDec", FreeCaller<CameraSpeed_decrease>(), Accelerator(GDK_KP_Subtract, (GdkModifierType)GDK_SHIFT_MASK));
2075
2076   GlobalShortcuts_insert("CameraForward", Accelerator(GDK_Up));
2077   GlobalShortcuts_insert("CameraBack", Accelerator(GDK_Down));
2078   GlobalShortcuts_insert("CameraLeft", Accelerator(GDK_Left));
2079   GlobalShortcuts_insert("CameraRight", Accelerator(GDK_Right));
2080   GlobalShortcuts_insert("CameraStrafeRight", Accelerator(GDK_period));
2081   GlobalShortcuts_insert("CameraStrafeLeft", Accelerator(GDK_comma));
2082
2083   GlobalShortcuts_insert("CameraUp", Accelerator('D'));
2084   GlobalShortcuts_insert("CameraDown", Accelerator('C'));
2085   GlobalShortcuts_insert("CameraAngleUp", Accelerator('A'));
2086   GlobalShortcuts_insert("CameraAngleDown", Accelerator('Z'));
2087
2088   GlobalShortcuts_insert("CameraFreeMoveForward", Accelerator(GDK_Up));
2089   GlobalShortcuts_insert("CameraFreeMoveBack", Accelerator(GDK_Down));
2090   GlobalShortcuts_insert("CameraFreeMoveLeft", Accelerator(GDK_Left));
2091   GlobalShortcuts_insert("CameraFreeMoveRight", Accelerator(GDK_Right));
2092
2093   GlobalToggles_insert("ShowStats", ShowStatsToggleCaller(), ToggleItem::AddCallbackCaller(g_show_stats));
2094
2095   GlobalPreferenceSystem().registerPreference("ShowStats", BoolImportStringCaller(g_camwindow_globals_private.m_showStats), BoolExportStringCaller(g_camwindow_globals_private.m_showStats));
2096   GlobalPreferenceSystem().registerPreference("MoveSpeed", IntImportStringCaller(g_camwindow_globals_private.m_nMoveSpeed), IntExportStringCaller(g_camwindow_globals_private.m_nMoveSpeed));
2097   GlobalPreferenceSystem().registerPreference("CamLinkSpeed", BoolImportStringCaller(g_camwindow_globals_private.m_bCamLinkSpeed), BoolExportStringCaller(g_camwindow_globals_private.m_bCamLinkSpeed));
2098   GlobalPreferenceSystem().registerPreference("AngleSpeed", IntImportStringCaller(g_camwindow_globals_private.m_nAngleSpeed), IntExportStringCaller(g_camwindow_globals_private.m_nAngleSpeed));
2099   GlobalPreferenceSystem().registerPreference("CamInverseMouse", BoolImportStringCaller(g_camwindow_globals_private.m_bCamInverseMouse), BoolExportStringCaller(g_camwindow_globals_private.m_bCamInverseMouse));
2100   GlobalPreferenceSystem().registerPreference("CamDiscrete", makeBoolStringImportCallback(CamWndMoveDiscreteImportCaller()), BoolExportStringCaller(g_camwindow_globals_private.m_bCamDiscrete));
2101   GlobalPreferenceSystem().registerPreference("CubicClipping", BoolImportStringCaller(g_camwindow_globals_private.m_bCubicClipping), BoolExportStringCaller(g_camwindow_globals_private.m_bCubicClipping));
2102   GlobalPreferenceSystem().registerPreference("CubicScale", IntImportStringCaller(g_camwindow_globals.m_nCubicScale), IntExportStringCaller(g_camwindow_globals.m_nCubicScale));
2103   GlobalPreferenceSystem().registerPreference("SI_Colors4", Vector3ImportStringCaller(g_camwindow_globals.color_cameraback), Vector3ExportStringCaller(g_camwindow_globals.color_cameraback));
2104   GlobalPreferenceSystem().registerPreference("SI_Colors12", Vector3ImportStringCaller(g_camwindow_globals.color_selbrushes3d), Vector3ExportStringCaller(g_camwindow_globals.color_selbrushes3d));
2105   GlobalPreferenceSystem().registerPreference("CameraRenderMode", makeIntStringImportCallback(RenderModeImportCaller()), makeIntStringExportCallback(RenderModeExportCaller()));
2106   GlobalPreferenceSystem().registerPreference("StrafeMode", IntImportStringCaller(g_camwindow_globals_private.m_nStrafeMode), IntExportStringCaller(g_camwindow_globals_private.m_nStrafeMode));
2107
2108   CamWnd_constructStatic();
2109
2110   Camera_registerPreferencesPage();
2111 }
2112 void CamWnd_Destroy()
2113 {
2114   CamWnd_destroyStatic();
2115 }