camera.cpp

/*
Copyright (C) 1999-2007 id Software, Inc. and contributors.
For a list of contributors, see the accompanying CONTRIBUTORS file.

This file is part of GtkRadiant.

GtkRadiant is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

GtkRadiant is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GtkRadiant; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

/*
Camera plugin for GtkRadiant
Copyright (C) 2002 Splash Damage Ltd.
*/

#include "camera.h"

// Render view
CRenderer         *Renderer = NULL;

// Interaction
CListener         *Listener = NULL;

// plugin name
static const char *PLUGIN_NAME = "Camera";

// commands in the menu
static const char *PLUGIN_COMMANDS = "About...,-,Load Camera...,-,Preview Camera,-,Camera Inspector...,-,New Spline Camera,New Interpolated Camera,New Fixed Camera";

// globals
GtkWidget *g_pRadiantWnd = NULL;
GtkWidget *g_pCameraInspectorWnd = NULL;
CCamera   *firstCam = NULL;       // double linked list
CCamera   *firstFreeCam = NULL;   // single linked list
CCamera   *currentCam = NULL;     // single item
bool			g_bEditOn = false;
int       g_iEditMode = 0;				// 0: editting points 1: adding points
int       g_iActiveTarget = -1;
int				g_iPreviewRunning = 0;	// 0: no preview 1: start preview 2: preview in progress

static const char *PLUGIN_ABOUT = "Camera v1.0 for GtkRadiant\n"
                                  "by Arnout van Meer (rr2do2@splashdamage.com)\n\n"
                                  "This product contains software technology\n"
                                  "from id Software, Inc. ('id Technology').\n"
                                  "id Technology (c) 2001, 2002 id Software, Inc.";


#include "iplugin.h"

const char* QERPlug_Init(void* hApp, void* pMainWidget)
{
  g_pRadiantWnd = (GtkWidget*)pMainWidget;

  // initialize cams
  for( int i = 0; i < MAX_CAMERAS; i++ ) {
    if( i == 0 ) {  
      firstFreeCam = new CCamera( i );
      firstCam = firstFreeCam;
    } else {
      firstCam->SetNext( new CCamera( i ) );
      firstCam = firstCam->GetNext();
      }
  }
  firstCam = NULL;

  if( !Renderer )
  {
    Renderer = new CRenderer;
  }

  if( g_pCameraInspectorWnd == NULL )
    g_pCameraInspectorWnd = CreateCameraInspectorDialog();

  InitIglToQgl(&g_QglTable);

  GetFileTypeRegistry()->addType("camera", filetype_t("Camera file", "*.camera"));

  return "Camera for GtkRadiant";
}

const char* QERPlug_GetName()
{
  return PLUGIN_NAME;
}

const char* QERPlug_GetCommandList()
{
  return PLUGIN_COMMANDS;
}

void QERPlug_Dispatch (const char* p, float* vMin, float* vMax, bool bSingleBrush)
{
  if( !strcmp( p, "New Fixed Camera" ) )
    DoNewFixedCamera();
  else if( !strcmp( p, "New Interpolated Camera" ) )
    DoNewInterpolatedCamera();
  else if( !strcmp( p, "New Spline Camera" ) )
    DoNewSplineCamera();
  else if( !strcmp( p, "Camera Inspector..." ) )
    DoCameraInspector();
  else if( !strcmp( p, "Preview Camera" ) )
    DoPreviewCamera();
  else if( !strcmp( p, "Load Camera..." ) )
    DoLoadCamera();
  else if( !strcmp( p, "About..." ) )
    g_FuncTable.m_pfnMessageBox( (GtkWidget *)g_pRadiantWnd, PLUGIN_ABOUT, "About", MB_OK, NULL );
}


// toolbar

#include "itoolbar.h"

unsigned int ToolbarButtonCount()
{
  return 1;
}

class CameraInspectorButton : public IToolbarButton
{
public:
  virtual const char* getImage() const
  {
    return "camera_insp.bmp";
  }
  virtual const char* getText() const
  {
    return "Inspector";
  }
  virtual const char* getTooltip() const
  {
    return "Camera Inspector";
  }
  virtual void activate() const
  {
    DoCameraInspector();
  }
  virtual EType getType() const
  {
    return eButton;
  }
};

CameraInspectorButton g_camerainspectorbutton;

const IToolbarButton* GetToolbarButton(unsigned int index)
{
  return &g_camerainspectorbutton;
}


_QERFuncTable_1   g_FuncTable;
_QERQglTable      g_QglTable;
_QERUITable       g_UITable;
_QERCameraTable		g_CameraTable;

// =============================================================================
// SYNAPSE

#include "synapse.h"

class CameraSynapseClient : public CSynapseClient
{
public:
  // CSynapseClient API
  bool RequestAPI(APIDescriptor_t *pAPI);
  const char* GetInfo();
  
  CameraSynapseClient() { }
  virtual ~CameraSynapseClient() { }
};

CSynapseServer* g_pSynapseServer = NULL;
CameraSynapseClient g_SynapseClient;

#if __GNUC__ >= 4
#pragma GCC visibility push(default)
#endif
extern "C" CSynapseClient* SYNAPSE_DLL_EXPORT Synapse_EnumerateInterfaces( const char *version, CSynapseServer *pServer ) {
#if __GNUC__ >= 4
#pragma GCC visibility pop
#endif
  if (strcmp(version, SYNAPSE_VERSION))
  {
    Syn_Printf("ERROR: synapse API version mismatch: should be '" SYNAPSE_VERSION "', got '%s'\n", version);
    return NULL;
  }
  g_pSynapseServer = pServer;
  g_pSynapseServer->IncRef();
  Set_Syn_Printf(g_pSynapseServer->Get_Syn_Printf());

  g_SynapseClient.AddAPI(TOOLBAR_MAJOR, "camera", sizeof(_QERPlugToolbarTable));
  g_SynapseClient.AddAPI(PLUGIN_MAJOR, "camera", sizeof(_QERPluginTable));

  g_SynapseClient.AddAPI(RADIANT_MAJOR, NULL, sizeof(_QERFuncTable_1), SYN_REQUIRE, &g_FuncTable);
  g_SynapseClient.AddAPI(UI_MAJOR, NULL, sizeof(_QERUITable), SYN_REQUIRE, &g_UITable);
  g_SynapseClient.AddAPI(QGL_MAJOR, NULL, sizeof(_QERQglTable), SYN_REQUIRE, &g_QglTable);
  g_SynapseClient.AddAPI(CAMERA_MAJOR, NULL, sizeof(_QERCameraTable), SYN_REQUIRE, &g_CameraTable);

  return &g_SynapseClient;
}

bool CameraSynapseClient::RequestAPI(APIDescriptor_t *pAPI)
{
  if (!strcmp(pAPI->major_name, TOOLBAR_MAJOR))
  {
    _QERPlugToolbarTable* pTable= static_cast<_QERPlugToolbarTable*>(pAPI->mpTable);

    pTable->m_pfnToolbarButtonCount = &ToolbarButtonCount;
    pTable->m_pfnGetToolbarButton = &GetToolbarButton;
    return true;
  }
  else if (!strcmp(pAPI->major_name, PLUGIN_MAJOR))
  {
    _QERPluginTable* pTable= static_cast<_QERPluginTable*>(pAPI->mpTable);

    pTable->m_pfnQERPlug_Init = QERPlug_Init;
    pTable->m_pfnQERPlug_GetName = QERPlug_GetName;
    pTable->m_pfnQERPlug_GetCommandList = QERPlug_GetCommandList;
    pTable->m_pfnQERPlug_Dispatch = QERPlug_Dispatch;
    return true;
  }

  Syn_Printf("ERROR: RequestAPI( '%s' ) not found in '%s'\n", pAPI->major_name, GetInfo());
  return false;
}

#include "version.h"

const char* CameraSynapseClient::GetInfo()
{
  return "Camera plugin v1.0 - Arnout van Meer - built " __DATE__ " " RADIANT_VERSION;
}



//
// CCamera
//
CCamera *AllocCam() {
  if( !firstFreeCam )
    return( NULL );

  CCamera *cam = firstFreeCam;
  firstFreeCam = firstFreeCam->GetNext();
  cam->Init();
  if( firstCam ) {
    cam->SetNext( firstCam );
    firstCam->SetPrev( cam );
  }
  firstCam = cam;

  return( cam );
}

void FreeCam( CCamera *cam ) {
  if( cam->GetPrev() ) {
    if( cam->GetNext() ) {
      cam->GetPrev()->SetNext( cam->GetNext() );
      cam->GetNext()->SetPrev( cam->GetPrev() );
    } else {
      cam->GetPrev()->SetNext( NULL );
    }
  } else if( cam->GetNext() ) {
    cam->GetNext()->SetPrev( NULL );
    firstCam = cam->GetNext();
  } else {
    firstCam = NULL;
  }

  cam->GetCam()->clear();
  cam->Init();

  if( firstFreeCam ) {
    cam->SetNext( firstFreeCam );
  }
  firstFreeCam = cam;
}

void SetCurrentCam( CCamera *cam ) {
  currentCam = cam;
}

CCamera *GetCurrentCam() {
  return( currentCam );
}