/*
Copyright (C) 1999-2006 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"

CListener::CListener()
{
	refCount = 1;

	m_bHooked = FALSE;

  m_bLeftMBPressed = m_bRightMBPressed = m_bMiddleMBPressed = false;

  oldValid = false;

  Register();
}

CListener::~CListener()
{
	UnRegister();
}

void CListener::Register()
{
	g_UITable.m_pfnHookWindow( this );
  g_pXYWndWrapper = g_UITable.m_pfnGetXYWndWrapper();
	m_bHooked = TRUE;
}

void CListener::UnRegister()
{
	if(m_bHooked)
	{
		g_UITable.m_pfnUnHookWindow( this );
    g_pXYWndWrapper= NULL;
		m_bHooked = FALSE;
	}
}

bool CListener::OnMouseMove( unsigned int nFlags, double x, double y )
{
  SetViewType( g_pXYWndWrapper->GetViewType() );

  if( m_bLeftMBPressed && oldValid && g_iEditMode == 0 ) {
    vec3_t click, delta;

    g_pXYWndWrapper->SnapToGrid( (int)x, (int)y, click );

    switch( m_vt ) {
    case XY:
      VectorSet( delta, click[0] - old_x, click[1] - old_y, 0 );
      old_x = click[0]; old_y = click[1];
      break;
    case XZ:
      VectorSet( delta, click[0] - old_x, 0, click[2] - old_y );
      old_x = click[0]; old_y = click[2];
      break;
    case YZ:
      VectorSet( delta, 0, click[1] - old_x, click[2] - old_y );
      old_x = click[1]; old_y = click[2];
      break;
    }

    if( g_iActiveTarget < 0 )
      GetCurrentCam()->GetCam()->getPositionObj()->updateSelection( delta[0], delta[1], delta[2] );
    else
      GetCurrentCam()->GetCam()->getActiveTarget(g_iActiveTarget)->updateSelection( delta[0], delta[1], delta[2] );

		GetCurrentCam()->HasBeenModified();

    g_FuncTable.m_pfnSysUpdateWindows( W_XY_OVERLAY | W_CAMERA );

    return true;
  }

  return false;
}

bool CListener::OnLButtonDown( unsigned int nFlags, double x, double y )
{
  SetViewType( g_pXYWndWrapper->GetViewType() );

  m_bLeftMBPressed = true;
  oldValid = true;

  vec3_t org, delta;

  g_pXYWndWrapper->SnapToGrid( (int)x, (int)y, org );

  switch( m_vt ) {
  case XY:
    old_x = org[0]; old_y = org[1]; org[2] = 64*1024;
    VectorSet( delta, 0, 0, -1 );
    break;
  case XZ:
    old_x = org[0]; old_y = org[2]; org[1] = 64*1024;
    VectorSet( delta, 0, -1, 0 );
    break;
  case YZ:
    old_x = org[1]; old_y = org[2]; org[0] = 64*1024;
    VectorSet( delta, -1, 0, 0 );
    break;
  }

	if( g_iEditMode == 0 ) {
		if( g_iActiveTarget < 0 )
			GetCurrentCam()->GetCam()->getPositionObj()->selectPointByRay( org[0], org[1], org[2], delta[0], delta[1], delta[2], true );
		else
			GetCurrentCam()->GetCam()->getActiveTarget(g_iActiveTarget)->selectPointByRay( org[0], org[1], org[2], delta[0], delta[1], delta[2], true );
	} else if( g_iEditMode == 1 ) {
		idVec3 *lastcoord;
		idCameraPosition *camera;

    if( g_iActiveTarget < 0 ) {
			camera = GetCurrentCam()->GetCam()->getPositionObj();
		} else {
			camera = GetCurrentCam()->GetCam()->getActiveTarget(g_iActiveTarget);
		}

		if( camera->numPoints() ) {
			lastcoord = camera->getPoint( camera->numPoints() -1 );
			switch( m_vt ) {
			case XY:
				camera->addPoint( org[0], org[1], lastcoord->z );
				break;
			case XZ:
				camera->addPoint( org[0], lastcoord->y, org[2] );
				break;
			case YZ:
				camera->addPoint( lastcoord->x, org[1], org[2] );
				break;
			}
		}	else {
			switch( m_vt ) {
			case XY:
				camera->addPoint( org[0], org[1], 0 );
				break;
			case XZ:
				camera->addPoint( org[0], 0, org[2] );
				break;
			case YZ:
				camera->addPoint( 0, org[1], org[2] );
				break;
			}
		}

		GetCurrentCam()->HasBeenModified();
	}

  g_FuncTable.m_pfnSysUpdateWindows( W_XY_OVERLAY | W_CAMERA );

  return true;

	//return false;
}

bool CListener::OnLButtonUp( unsigned int nFlags, double x, double y )
{
  SetViewType( g_pXYWndWrapper->GetViewType() );

  m_bLeftMBPressed = false;
  oldValid = false;

	if( g_iEditMode == 0 ) {
		if( g_iActiveTarget < 0 )
			GetCurrentCam()->GetCam()->getPositionObj()->deselectAll();
		else
			GetCurrentCam()->GetCam()->getActiveTarget(g_iActiveTarget)->deselectAll();

	  g_FuncTable.m_pfnSysUpdateWindows( W_XY_OVERLAY | W_CAMERA );
	}

	return false;
}

bool CListener::OnRButtonDown( unsigned int nFlags, double x, double y )
{
  SetViewType( g_pXYWndWrapper->GetViewType() );

  m_bRightMBPressed = true;

	return false;
}

bool CListener::OnRButtonUp( unsigned int nFlags, double x, double y )
{
  SetViewType( g_pXYWndWrapper->GetViewType() );

  m_bRightMBPressed = false;

	return false;
}

bool CListener::OnMButtonDown( unsigned int nFlags, double x, double y )
{
  SetViewType( g_pXYWndWrapper->GetViewType() );

  m_bMiddleMBPressed = true;

	return false;
}

bool CListener::OnMButtonUp( unsigned int nFlags, double x, double y )
{
  SetViewType( g_pXYWndWrapper->GetViewType() );

  m_bMiddleMBPressed = false;

	return false;
}