/*
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
*/

// select.c
#include "stdafx.h"
#include <assert.h>
#include "filters.h"

// externs
CPtrArray g_SelectedFaces;
CPtrArray g_SelectedFaceBrushes;
CPtrArray& g_ptrSelectedFaces = g_SelectedFaces;
CPtrArray& g_ptrSelectedFaceBrushes = g_SelectedFaceBrushes;

/*
===========
Test_Ray
===========
*/
#define	DIST_START	999999
trace_t Test_Ray (vec3_t origin, vec3_t dir, int flags)
{
	brush_t	*brush;
	face_t	*face;
	float	dist;
	trace_t	t;

	memset (&t, 0, sizeof(t));
	t.dist = DIST_START;

	if (flags & SF_CYCLE)
	{
		CPtrArray array;
		brush_t *pToSelect = (selected_brushes.next != &selected_brushes) ? selected_brushes.next : NULL;
		Select_Deselect();

		// go through active brushes and accumulate all "hit" brushes
		for (brush = active_brushes.next ; brush != &active_brushes ; brush=brush->next)
		{
			//if ( (flags & SF_ENTITIES_FIRST) && brush->owner == world_entity)
			//  continue;
		 
			if (brush->bFiltered)
				continue;

			if (!g_PrefsDlg.m_bSelectCurves && brush->patchBrush)
				continue;

			if (!g_PrefsDlg.m_bSelectModels && (brush->owner->eclass->nShowFlags & ECLASS_MISCMODEL))
				continue;

			//if (!g_bShowPatchBounds && brush->patchBrush)
			//  continue;

			face = Brush_Ray (origin, dir, brush, &dist, flags);

			if (face)
				array.Add(brush);
		}

		int nSize = array.GetSize();
		if (nSize > 0)
		{
			bool bFound = false;
			for (int i = 0; i < nSize; i++)
			{
				brush_t *b = reinterpret_cast<brush_t*>(array.GetAt(i));
				// did we hit the last one selected yet ?
				if (b == pToSelect)
				{
					// yes we want to select the next one in the list 
					int n = (i > 0) ? i-1 : nSize-1;
					pToSelect = reinterpret_cast<brush_t*>(array.GetAt(n));
					bFound = true;
					break;
				}
			}
			if (!bFound)
				pToSelect = reinterpret_cast<brush_t*>(array.GetAt(0));
		}
		if (pToSelect)
		{
			face = Brush_Ray (origin, dir, pToSelect, &dist, flags);
			t.dist = dist;
			t.brush = pToSelect;
			t.face = face;
			t.selected = false;
			return t;
		}
	}

	if (! (flags & SF_SELECTED_ONLY) )
  {
		for (brush = active_brushes.next ; brush != &active_brushes ; brush=brush->next)
		{
      if ( (flags & SF_ENTITIES_FIRST) && (brush->owner == world_entity || !brush->owner->eclass->fixedsize))
				continue;
			
			if (brush->bFiltered)
				continue;

      if (!g_PrefsDlg.m_bSelectCurves && brush->patchBrush)
        continue;

			if (!g_PrefsDlg.m_bSelectModels && (brush->owner->eclass->nShowFlags & ECLASS_MISCMODEL))
				continue;

      //if (!g_bShowPatchBounds && brush->patchBrush)
      //  continue;

			face = Brush_Ray (origin, dir, brush, &dist, flags);
			if (face && dist > 0 && dist < t.dist)
			{
				t.dist = dist;
				t.brush = brush;
				t.face = face;
				t.selected = false;
			}
		}
  }


	for (brush = selected_brushes.next ; brush != &selected_brushes ; brush=brush->next)
	{
		if ( (flags & SF_ENTITIES_FIRST) && (brush->owner == world_entity || !brush->owner->eclass->fixedsize))
			continue;

		if (brush->bFiltered)
			continue;

    if (!g_PrefsDlg.m_bSelectCurves && brush->patchBrush)
      continue;

	  if (!g_PrefsDlg.m_bSelectModels && (brush->owner->eclass->nShowFlags & ECLASS_MISCMODEL))
			continue;

		face = Brush_Ray (origin, dir, brush, &dist, flags);
		if (dist > 0 && dist < t.dist)
		{
			t.dist = dist;
			t.brush = brush;
			t.face = face;
			t.selected = true;
		}
	}

	// if entites first, but didn't find any, check regular

	if ( (flags & SF_ENTITIES_FIRST) && t.brush == NULL)
		return Test_Ray (origin, dir, flags & ~SF_ENTITIES_FIRST);

	return t;

}


/*
============
Select_Brush

============
*/
void Select_Brush (brush_t *brush, bool bComplete, bool bStatus)
{
	brush_t	*b;
	entity_t	*e;

  g_ptrSelectedFaces.RemoveAll();
  g_ptrSelectedFaceBrushes.RemoveAll();
	if (g_qeglobals.d_select_count < 2)
		g_qeglobals.d_select_order[g_qeglobals.d_select_count] = brush;
	g_qeglobals.d_select_count++;

	e = brush->owner;
	if (e)
	{
		// select complete entity on first click
		if (e != world_entity && bComplete == true)
		{
			for (b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
				if (b->owner == e)
					goto singleselect;
			for (b=e->brushes.onext ; b != &e->brushes ; b=b->onext)
			{
				if( b == brush ) // make sure we add the actual selected brush last, mainly for cycle select
         				continue;
       				Brush_RemoveFromList (b);
				Brush_AddToList (b, &selected_brushes);
			}
     			Brush_RemoveFromList (brush);
			Brush_AddToList (brush, &selected_brushes);
		}
		else
		{
		singleselect:
      			Brush_RemoveFromList (brush);
      			Brush_AddToList (brush, &selected_brushes);
      			UpdatePatchInspector();
		}

		if (e->eclass)
		{
			UpdateEntitySel(brush->owner->eclass);
		}

	UpdateSurfaceDialog();
	}

  if (bStatus)
  {
    vec3_t vMin, vMax, vSize;
	  Select_GetBounds (vMin, vMax);
    VectorSubtract(vMax, vMin, vSize);
    CString strStatus;
    strStatus.Format("Selection X:: %.1f  Y:: %.1f  Z:: %.1f", vSize[0], vSize[1], vSize[2]);
    g_pParentWnd->SetStatusText(2, strStatus);
  }
}

/*
=============
Select_FaceInSelectedBrushes
=============
*/
bool Select_FaceInSelectedBrushes( face_t *face )
{
  brush_t *brush;
  face_t  *tface;

  for(brush = selected_brushes.next; brush != &selected_brushes; brush = brush->next)
  {
    for(tface = brush->brush_faces; tface; tface = tface->next)
    {
      if(tface == face)
      {
        return true;
      }
    }
  }

	return false;
}

/*
============
Select_Ray

If the origin is inside a brush, that brush will be ignored.
============
*/
void Select_Ray (vec3_t origin, vec3_t dir, int flags)
{
	trace_t t;
	face_t  *tface;
  bool    bOk;
  static  trace_t lastTrace = {
    NULL,	//	brush
    NULL,	//	face
    0,		//	dist
    false	//	selected
  };

	t = Test_Ray (origin, dir, flags);
	if (!t.brush)
		return;

  if (flags & SF_SINGLEFACE)
  {
    if( flags & SF_DRAG )
    {
      if ( t.brush == lastTrace.brush && t.face == lastTrace.face )
        return;
		}
    lastTrace = t;

    if(Select_FaceInSelectedBrushes(t.face))
    {
      // Deselect the brush
      Brush_RemoveFromList (t.brush);
      Brush_AddToList (t.brush, &active_brushes);
      UpdatePatchInspector();

      // Select all of the brush's faces except the one we are pointing at
      for( tface = t.brush->brush_faces; tface; tface = tface->next )
      {
        if( tface == t.face )
          continue;

        bOk = true;
        // NOTE: keep the size check in the loop, we remove stuff inside
        for (int i = 0; i < g_SelectedFaces.GetSize(); i++)
        {
          if (tface == reinterpret_cast<face_t*>(g_SelectedFaces.GetAt(i)))
						bOk = false;
        }

        if(bOk)
        {
          g_SelectedFaces.Add(tface);
          g_SelectedFaceBrushes.Add(t.brush);
        }
      }
      g_qeglobals.d_select_mode = sel_facets_off;
    }
    else
    {
      bOk = true;
      // NOTE: keep the size check in the loop, we remove stuff inside
      for (int i = 0; i < g_SelectedFaces.GetSize(); i++)
      {
        if (t.face == reinterpret_cast<face_t*>(g_SelectedFaces.GetAt(i)))
        {
          bOk = false;
          if( flags & SF_DRAG_ON )
            continue;

          g_qeglobals.d_select_mode = sel_facets_off;
          // need to remove i'th entry
          g_SelectedFaces.RemoveAt(i, 1);
          g_SelectedFaceBrushes.RemoveAt(i, 1);
        }
      }

      if (bOk && !(flags & SF_DRAG_OFF))
      {
        g_SelectedFaces.Add(t.face);
        g_SelectedFaceBrushes.Add(t.brush);
        g_qeglobals.d_select_mode = sel_facets_on;
      }
    }
    UpdateSurfaceDialog();
    Sys_UpdateWindows (W_ALL);
    //g_qeglobals.d_select_mode = sel_brush;
    // Texture_SetTexture requires a brushprimit_texdef fitted to the default width=2 height=2 texture
    brushprimit_texdef_t brushprimit_texdef;
    ConvertTexMatWithQTexture ( &t.face->brushprimit_texdef, t.face->d_texture, &brushprimit_texdef, NULL );
    Texture_SetTexture ( &t.face->texdef, &brushprimit_texdef, false, NULL, false );
    return;
  }

	// move the brush to the other list
  if (t.selected)
  {
    if( flags & SF_DRAG_ON )
      return;
		
    g_qeglobals.d_select_mode = sel_brush_off;
    Brush_RemoveFromList (t.brush);
    Brush_AddToList (t.brush, &active_brushes);

    UpdatePatchInspector();
  } 
  else
  {
    if( flags & SF_DRAG_OFF )
      return;

    g_qeglobals.d_select_mode = sel_brush_on;
    Select_Brush (t.brush, g_PrefsDlg.m_nCamDragMultiSelect == 1 ? Sys_AltDown () : !Sys_AltDown ());
  }
  UpdateSurfaceDialog();
  Sys_UpdateWindows (W_ALL);
}


void Select_Delete (void)
{
  brush_t *brush;
  entity_t *e;

  g_ptrSelectedFaces.RemoveAll();
  g_ptrSelectedFaceBrushes.RemoveAll();

  g_qeglobals.d_select_mode = sel_brush;

  g_qeglobals.d_select_count = 0;
  g_qeglobals.d_num_move_points = 0;
  while (selected_brushes.next != &selected_brushes)
  {
    brush = selected_brushes.next;
    if (brush->patchBrush)
    {
      Patch_Delete(brush->pPatch);
    }
    e = brush->owner;
    Brush_Free (brush);
    // remove if no brushes
    if (e != world_entity && e->brushes.onext == &e->brushes)
      Entity_Free(e);
  }

  Sys_MarkMapModified ();
  UpdateSurfaceDialog();
  Sys_UpdateWindows (W_ALL);
}

// update the workzone to a given brush
void UpdateWorkzone_ForBrush( brush_t* b )
{
  VectorCopy( b->mins, g_qeglobals.d_work_min );
  VectorCopy( b->maxs, g_qeglobals.d_work_max );
  //++timo clean
#if 0
	// will update the workzone to the given brush
	// g_pParentWnd->ActiveXY()->GetViewType()
	// cf VIEWTYPE defintion: enum VIEWTYPE {YZ, XZ, XY};
	// we fit our work zone to the last brush on the list (b)
	int nViewType = g_pParentWnd->ActiveXY()->GetViewType();
  int nDim1 = (nViewType == YZ) ? 1 : 0;
  int nDim2 = (nViewType == XY) ? 1 : 2;
	g_qeglobals.d_work_min[nDim1] = b->mins[nDim1];
	g_qeglobals.d_work_max[nDim1] = b->maxs[nDim1];
	g_qeglobals.d_work_min[nDim2] = b->mins[nDim2];
	g_qeglobals.d_work_max[nDim2] = b->maxs[nDim2];
#endif
}

// here to filter new brushes once unselected
extern void PerformFiltering();

void Select_Deselect (bool bDeselectFaces)
{
	brush_t	*b;

  Patch_Deselect();

  g_pParentWnd->ActiveXY()->UndoClear();

  g_qeglobals.d_workcount++;
	g_qeglobals.d_select_count = 0;
	g_qeglobals.d_num_move_points = 0;
	b = selected_brushes.next;

	if (b == &selected_brushes)
	{
		if (bDeselectFaces)
		{
			g_ptrSelectedFaces.RemoveAll();
      g_ptrSelectedFaceBrushes.RemoveAll();
		}
    PerformFiltering();
    		UpdateSurfaceDialog();
 		Sys_UpdateWindows (W_ALL);
		return;
	}

  if (bDeselectFaces)
  {
  	g_ptrSelectedFaces.RemoveAll();
    g_ptrSelectedFaceBrushes.RemoveAll();
  }

	g_qeglobals.d_select_mode = sel_brush;

	UpdateWorkzone_ForBrush(b);

	selected_brushes.next->prev = &active_brushes;
	selected_brushes.prev->next = active_brushes.next;
	active_brushes.next->prev = selected_brushes.prev;
	active_brushes.next = selected_brushes.next;
	selected_brushes.prev = selected_brushes.next = &selected_brushes;

  // filter newly created stuff once it's unselected
  PerformFiltering();
	UpdateSurfaceDialog();
	Sys_UpdateWindows (W_ALL);
}

/*
============
Select_Move
============
*/
/*! Moves the currently selected brush/patch
    \param delta How far to move the selection (x,y,z)
    \param bSnap If the move should snap to grid points
*/
void Select_Move (vec3_t delta, bool bSnap)
{
	brush_t	*b;

  // actually move the selected brushes
  for (b = selected_brushes.next ; b != &selected_brushes ; b=b->next)
    Brush_Move (b, delta, bSnap);

  vec3_t vMin, vMax;
	Select_GetBounds (vMin, vMax);
  CString strStatus;
  strStatus.Format("Origin X:: %.1f  Y:: %.1f  Z:: %.1f", vMin[0], vMax[1], vMax[2]);
  g_pParentWnd->SetStatusText(2, strStatus);

  //Sys_UpdateWindows (W_ALL);
}

/*
=================
Select_NudgeVerts
=================
*/
/*! Moves the currently selected brush/patch vertices
    \param delta How far to move the vertices (x,y,z)
    \param bSnap If the move should snap to grid points
*/
void Select_NudgePoint(vec3_t delta, qboolean bSnap)
{
  if (g_qeglobals.d_select_mode == sel_vertex)
  {
    // move selected verts
    brush_t *b;
    vec3_t end;
    qboolean success = true;
    for (b = selected_brushes.next; b != &selected_brushes; b = b->next)
    {
      success &= (qboolean)Brush_MoveVertex(b, g_qeglobals.d_move_points[0], delta, end, bSnap);
    }
    if (success)
      VectorCopy(end, g_qeglobals.d_move_points[0]);
  }
  else if (g_qeglobals.d_select_mode == sel_curvepoint)
  {
    // move selected patch control points
    Patch_UpdateSelected(delta);
  }
}

/*
============
Select_Clone

Creates an exact duplicate of the selection in place, then moves
the selected brushes off of their old positions
============
*/
void Select_Clone (void)
{
  g_bScreenUpdates = false;  
  g_pParentWnd->Copy();
  Select_Deselect();
  g_pParentWnd->Paste();
  g_pParentWnd->NudgeSelection(2, g_qeglobals.d_gridsize);
  g_pParentWnd->NudgeSelection(3, g_qeglobals.d_gridsize);
  Undo_Start("clone");
  Undo_EndBrushList(&selected_brushes);
  Undo_End();
  g_bScreenUpdates = true;  
  Sys_UpdateWindows(W_ALL);
}

//++timo clean
#if 0
/*
============
Select_SetTexture
Timo : bFitScale to compute scale on the plane and counteract plane / axial plane snapping
Timo :	brush primitive texturing
		the brushprimit_texdef given must be understood as a qtexture_t width=2 height=2 ( HiRes )
Timo :  texture plugin, added an IPluginTexdef* parameter
		must be casted to an IPluginTexdef!
		if not NULL, get ->Copy() of it into each face or brush ( and remember to hook )
		if NULL, means we have no information, ask for a default
TTimo - shader code cleanup
  added IShader* parameter
============
*/
void WINAPI Select_SetTexture2 (IShader* pShader, texdef_t *texdef, brushprimit_texdef_t *brushprimit_texdef, bool bFitScale, void* pPlugTexdef )
{
	brush_t	*b;
	int nCount = g_ptrSelectedFaces.GetSize();
	if (nCount > 0)
	{
		Undo_Start("set face textures");
		ASSERT(g_ptrSelectedFaces.GetSize() == g_ptrSelectedFaceBrushes.GetSize());
		for (int i = 0; i < nCount; i++)
		{
			face_t *selFace = reinterpret_cast<face_t*>(g_ptrSelectedFaces.GetAt(i));
			brush_t *selBrush = reinterpret_cast<brush_t*>(g_ptrSelectedFaceBrushes.GetAt(i));
			Undo_AddBrush(selBrush);
			//++timo TODO: propagate the IShader* ..
			SetFaceTexdef (selFace, texdef, brushprimit_texdef, bFitScale, static_cast<IPluginTexdef *>(pPlugTexdef) );
			Brush_Build(selBrush, bFitScale);
			Undo_EndBrush(selBrush);
		}
		Undo_End();
	}
	else if (selected_brushes.next != &selected_brushes)
	{
		Undo_Start("set brush textures");
		for (b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
			if (!b->owner->eclass->fixedsize)
			{
				Undo_AddBrush(b);
				Brush_SetTexture2 (b, pShader, texdef, brushprimit_texdef, bFitScale, static_cast<IPluginTexdef *>(pPlugTexdef) );
				Undo_EndBrush(b);
			}
		Undo_End();
	}
	Sys_UpdateWindows (W_ALL);
}
#endif

/*
============
Select_SetTexture
Timo : bFitScale to compute scale on the plane and counteract plane / axial plane snapping
Timo :	brush primitive texturing
		the brushprimit_texdef given must be understood as a qtexture_t width=2 height=2 ( HiRes )
Timo :  texture plugin, added an IPluginTexdef* parameter
		must be casted to an IPluginTexdef!
		if not NULL, get ->Copy() of it into each face or brush ( and remember to hook )
		if NULL, means we have no information, ask for a default
============
*/
void WINAPI Select_SetTexture (texdef_t *texdef, brushprimit_texdef_t *brushprimit_texdef, bool bFitScale, void* pPlugTexdef )
{
  /*
#ifdef _DEBUG
  static int count = 0;
#endif
  */
	brush_t	*b;
  /*
#ifdef _DEBUG
  count++;
  Sys_Printf("count: %d\n", count);
  if(count==4)
    Sys_Printf("break!\n");
#endif
  */
	int nCount = g_ptrSelectedFaces.GetSize();
	if (nCount > 0)
	{
		Undo_Start("set face textures");
		assert(g_ptrSelectedFaces.GetSize() == g_ptrSelectedFaceBrushes.GetSize());
		for (int i = 0; i < nCount; i++)
		{
			face_t *selFace = reinterpret_cast<face_t*>(g_ptrSelectedFaces.GetAt(i));
			brush_t *selBrush = reinterpret_cast<brush_t*>(g_ptrSelectedFaceBrushes.GetAt(i));
			Undo_AddBrush(selBrush);
			SetFaceTexdef (selFace, texdef, brushprimit_texdef, bFitScale, static_cast<IPluginTexdef *>(pPlugTexdef) );
			Brush_Build(selBrush, bFitScale);
			Undo_EndBrush(selBrush);
		}
		Undo_End();
	}
	else if (selected_brushes.next != &selected_brushes)
	{
		Undo_Start("set brush textures");
		for (b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
			if (!b->owner->eclass->fixedsize)
			{
				Undo_AddBrush(b);
				Brush_SetTexture (b, texdef, brushprimit_texdef, bFitScale, static_cast<IPluginTexdef *>(pPlugTexdef) );
				Undo_EndBrush(b);
			}
		Undo_End();
	}
 	//++timo FIXME: not necessary in every cases, write a message defering / move one level up
	Sys_UpdateWindows (W_ALL);
}


/*
================================================================

  TRANSFORMATIONS

================================================================
*/

void Select_GetBounds (vec3_t mins, vec3_t maxs)
{
	brush_t	*b;
	int		i;

	for (i=0 ; i<3 ; i++)
	{
		mins[i] = 99999;
		maxs[i] = -99999;
	}

	for (b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
	{
		if (b->owner->eclass->fixedsize)
		{
			for (i=0 ; i<3 ; i++)
			{
				if (b->owner->origin[i] < mins[i])
					mins[i] = b->owner->origin[i];
				if (b->owner->origin[i] > maxs[i])
					maxs[i] = b->owner->origin[i];
			}
		}
		else
		{
			for (i=0 ; i<3 ; i++)
			{
				if (b->mins[i] < mins[i])
					mins[i] = b->mins[i];
				if (b->maxs[i] > maxs[i])
					maxs[i] = b->maxs[i];
			}
		}
	}
}

void Select_GetTrueMid (vec3_t mid)
{
	vec3_t	mins, maxs;
	Select_GetBounds (mins, maxs);

  for (int i=0 ; i<3 ; i++)
    mid[i] = (mins[i] + ((maxs[i] - mins[i]) / 2));
}

void Select_GetMid (vec3_t mid)
{
	vec3_t	mins, maxs;
	int		i;

  if (g_PrefsDlg.m_bNoClamp)
  {
    Select_GetTrueMid(mid);
    return;
  }

  Select_GetBounds (mins, maxs);

  for (i=0 ; i<3 ; i++)
		mid[i] = g_qeglobals.d_gridsize*floor ( ( (mins[i] + maxs[i])*0.5 )/g_qeglobals.d_gridsize );
}

vec3_t	select_origin;
vec3_t	select_matrix[3];
qboolean	select_fliporder;

// FIXME: bApplyBPrimit is supposed to be temporary
// TODO: manage Brush_Build calls, too many of them with the texture processing
// FIXME: the undo doesn't seem to work correctly on texturing and flip/rotate operations?? this is not supposed to be related to the texture locking code, so what is happening?
// FIXME: ApplyMatrix works on flipping operation, b0rks on Rotations (so does the "regular" rotation code??)
// FIXME: what is getting called in free rotation mode? that used to work right?
void Select_ApplyMatrix (bool bSnap, bool bRotation, int nAxis, float fDeg)//, qboolean bApplyBPrimit)
{
	brush_t	*b;
	face_t	*f;
	int		i, j;
	vec3_t	temp, tmporigin;

	for (b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
	{
		if(b->owner->eclass->fixedsize)
		{
			VectorCopy (b->owner->origin, tmporigin);
			// transform the origin point
			VectorSubtract (b->owner->origin, select_origin, temp);
			for (j=0 ; j<3 ; j++)
				b->owner->origin[j] = DotProduct(temp, select_matrix[j]) + select_origin[j];
			
      // update the origin key
      char text[64];
      sprintf (text, "%i %i %i",
        (int)b->owner->origin[0], (int)b->owner->origin[1], (int)b->owner->origin[2]);
      SetKeyValue(b->owner, "origin", text);
 
      /*\todo remove brush-based bounding box for fixedsize entities */
      VectorSubtract (b->owner->origin, tmporigin, temp);
			for (f=b->brush_faces ; f ; f=f->next)
			{
				// move fixedsize bbox to new origin
				for (i=0 ; i<3 ; i++)
					VectorAdd (f->planepts[i], temp, f->planepts[i]);
			}
			Brush_Build(b, bSnap,true,false,false); // don't filter

		}
		else if (b->patchBrush)
		{
			if (!bRotation && !((g_qeglobals.d_select_mode == sel_curvepoint && g_qeglobals.d_num_move_points != 0) || g_bPatchBendMode))
				// invert patch if this is a mirroring operation, unless points are selected or bendmode is active
				patchInvert(b->pPatch);
			// NOTE: does not clamp points to integers
			Patch_ApplyMatrix(b->pPatch, select_origin, select_matrix, false);
		}
		else
		{
			for (f=b->brush_faces ; f ; f=f->next)
			{
				// FIXME: only in BP mode!
				// if we are using Brush Primitives texturing, we need to compute the texture matrix after the geometric transformation
				// (with the default texturing you don't need to compute anything for flipping and mirroring operations)
				//      if (bApplyBPrimit) {
				//        ApplyMatrix_BrushPrimit (f, select_matrix, select_origin, select_fliporder);
				//      }
				for (i=0 ; i<3 ; i++)
				{
					VectorSubtract (f->planepts[i], select_origin, temp);
					for (j=0 ; j<3 ; j++)
						f->planepts[i][j] = DotProduct(temp, select_matrix[j]) + select_origin[j];
				}
				if (select_fliporder)
				{
					VectorCopy (f->planepts[0], temp);
					VectorCopy (f->planepts[2], f->planepts[0]);
					VectorCopy (temp, f->planepts[2]);
				}
			}
			Brush_Build(b, bSnap,true,false,false); // don't filter
		}
	}
}

void ProjectOnPlane(vec3_t& normal,float dist,vec3_t& ez, vec3_t& p)
{
	if (fabs(ez[0]) == 1)
		p[0] = (dist - normal[1] * p[1] - normal[2] * p[2]) / normal[0];
	else if (fabs(ez[1]) == 1)
		p[1] = (dist - normal[0] * p[0] - normal[2] * p[2]) / normal[1];
	else
		p[2] = (dist - normal[0] * p[0] - normal[1] * p[1]) / normal[2];
}

void Back(vec3_t& dir, vec3_t& p)
{
	if (fabs(dir[0]) == 1)
		p[0] = 0;
	else if (fabs(dir[1]) == 1)
		p[1] = 0;
	else p[2] = 0;
}



// using scale[0] and scale[1]
void ComputeScale(vec3_t& rex, vec3_t& rey, vec3_t& p, face_t* f)
{
	float px = DotProduct(rex, p);
	float py = DotProduct(rey, p);
	px *= f->texdef.scale[0];
	py *= f->texdef.scale[1];
  vec3_t aux;
  VectorCopy(rex, aux);
  VectorScale(aux, px, aux);
  VectorCopy(aux, p);
  VectorCopy(rey, aux);
  VectorScale(aux, py, aux);
  VectorAdd(p, aux, p);
}

void ComputeAbsolute(face_t* f, vec3_t& p1, vec3_t& p2, vec3_t& p3)
{
	vec3_t ex,ey,ez;	        // local axis base

#ifdef _DEBUG
	if (g_qeglobals.m_bBrushPrimitMode)
		Sys_Printf("Warning : illegal call of ComputeAbsolute in brush primitive mode\n");
#endif

  // compute first local axis base
  TextureAxisFromPlane(&f->plane, ex, ey);
  CrossProduct(ex, ey, ez);
	    
	vec3_t aux;
  VectorCopy(ex, aux);
  VectorScale(aux, -f->texdef.shift[0], aux);
  VectorCopy(aux, p1);
  VectorCopy(ey, aux);
  VectorScale(aux, -f->texdef.shift[1], aux);
  VectorAdd(p1, aux, p1);
  VectorCopy(p1, p2);
  VectorAdd(p2, ex, p2);
  VectorCopy(p1, p3);
  VectorAdd(p3, ey, p3);
  VectorCopy(ez, aux);
  VectorScale(aux, -f->texdef.rotate, aux);
  VectorRotate(p1, aux, p1);
  VectorRotate(p2, aux, p2);
  VectorRotate(p3, aux, p3);
	// computing rotated local axis base
	vec3_t rex,rey;
  VectorCopy(ex, rex);
  VectorRotate(rex, aux, rex);
  VectorCopy(ey, rey);
  VectorRotate(rey, aux, rey);

  ComputeScale(rex,rey,p1,f);
	ComputeScale(rex,rey,p2,f);
	ComputeScale(rex,rey,p3,f);

	// project on normal plane
	// along ez 
	// assumes plane normal is normalized
	ProjectOnPlane(f->plane.normal,f->plane.dist,ez,p1);
	ProjectOnPlane(f->plane.normal,f->plane.dist,ez,p2);
	ProjectOnPlane(f->plane.normal,f->plane.dist,ez,p3);
};


void AbsoluteToLocal(plane_t normal2, face_t* f, vec3_t& p1, vec3_t& p2, vec3_t& p3)
{
	vec3_t ex,ey,ez;

#ifdef _DEBUG
	if (g_qeglobals.m_bBrushPrimitMode)
		Sys_Printf("Warning : illegal call of AbsoluteToLocal in brush primitive mode\n");
#endif

	// computing new local axis base
  TextureAxisFromPlane(&normal2, ex, ey);
  CrossProduct(ex, ey, ez);

  // projecting back on (ex,ey)
	Back(ez,p1);
	Back(ez,p2);
	Back(ez,p3);

	vec3_t aux;
	// rotation
  VectorCopy(p2, aux);
  VectorSubtract(aux, p1,aux);
	
	float x = DotProduct(aux,ex);
	float y = DotProduct(aux,ey);
  f->texdef.rotate = 180 * atan2(y,x) / Q_PI;

	vec3_t rex,rey;
	// computing rotated local axis base
  VectorCopy(ez, aux);
  VectorScale(aux, f->texdef.rotate, aux);
  VectorCopy(ex, rex);
  VectorRotate(rex, aux, rex);
  VectorCopy(ey, rey);
  VectorRotate(rey, aux, rey);

	// scale
  VectorCopy(p2, aux);
  VectorSubtract(aux, p1, aux);
  f->texdef.scale[0] = DotProduct(aux, rex);
  VectorCopy(p3, aux);
  VectorSubtract(aux, p1, aux);
  f->texdef.scale[1] = DotProduct(aux, rey);

	// shift
	// only using p1
	x = DotProduct(rex,p1);
	y = DotProduct(rey,p1);                 
	x /= f->texdef.scale[0];
	y /= f->texdef.scale[1];

  VectorCopy(rex, p1);
  VectorScale(p1, x, p1);
  VectorCopy(rey, aux);
  VectorScale(aux, y, aux);
  VectorAdd(p1, aux, p1);
  VectorCopy(ez, aux);
  VectorScale(aux, -f->texdef.rotate, aux);
  VectorRotate(p1, aux, p1);
	f->texdef.shift[0] = -DotProduct(p1, ex);
	f->texdef.shift[1] = -DotProduct(p1, ey);

	// stored rot is good considering local axis base
	// change it if necessary
	f->texdef.rotate = -f->texdef.rotate;

  Clamp(f->texdef.shift[0], f->d_texture->width);
  Clamp(f->texdef.shift[1], f->d_texture->height);
  Clamp(f->texdef.rotate, 360);

}

void RotateFaceTexture(face_t* f, int nAxis, float fDeg)
{
	vec3_t p1,p2,p3, rota;   
	p1[0] = p1[1] = p1[2] = 0;
	VectorCopy(p1, p2);
	VectorCopy(p1, p3);
	VectorCopy(p1, rota);
	ComputeAbsolute(f, p1, p2, p3);
  
	rota[nAxis] = fDeg;
	VectorRotateOrigin (p1, rota, select_origin, p1);
	VectorRotateOrigin (p2, rota, select_origin, p2);
	VectorRotateOrigin (p3, rota, select_origin, p3);

	plane_t normal2;
	vec3_t vNormal;
	vNormal[0] = f->plane.normal[0];
	vNormal[1] = f->plane.normal[1];
	vNormal[2] = f->plane.normal[2];
	VectorRotate(vNormal, rota, vNormal);
	normal2.normal[0] = vNormal[0];
	normal2.normal[1] = vNormal[1];
	normal2.normal[2] = vNormal[2];
	AbsoluteToLocal(normal2, f, p1, p2 ,p3);

}

void RotateTextures(int nAxis, float fDeg, vec3_t vOrigin)
{
	for (brush_t* b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
	{
		for (face_t* f=b->brush_faces ; f ; f=f->next)
		{
			if (g_qeglobals.m_bBrushPrimitMode)
				RotateFaceTexture_BrushPrimit (f, nAxis, fDeg, vOrigin);
			else
				RotateFaceTexture (f, nAxis, fDeg);
		}
		Brush_Build(b, false,true,false,false); // don't filter
	}
}

void Select_ApplyMatrix_BrushPrimit()
{
  #ifdef _DEBUG
  if (!g_qeglobals.m_bBrushPrimitMode) {
    Sys_FPrintf(SYS_ERR,"ERROR: Select_ApplyMatrix_BrushPrimit called in non-BP mode\n");
  }
  #endif
	for (brush_t* b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
	{
		for (face_t* f=b->brush_faces ; f ; f=f->next)
		{
      ApplyMatrix_BrushPrimit (f, select_matrix, select_origin);
    }
  }
}

void Select_FlipAxis (int axis)
{
	int		i;

	Select_GetMid (select_origin);
	for (i=0 ; i<3 ; i++)
	{
		VectorCopy (vec3_origin, select_matrix[i]);
		select_matrix[i][i] = 1;
	}
	select_matrix[axis][axis] = -1;
	select_fliporder = true;

  // texture locking
  if (g_PrefsDlg.m_bRotateLock) {
    // axis flipping inverts space orientation, we have to use a general texture locking algorithm instead of the RotateFaceTexture
    if (g_qeglobals.m_bBrushPrimitMode) {
      Select_ApplyMatrix_BrushPrimit();
    }
    else
    {
      // there's never been flip locking for non BP mode, this would be tricky to write and there's not much interest for it with the coming of BP format
      // what could be done is converting regular to BP, locking, then back to regular :)
      Sys_FPrintf(SYS_WRN, "WARNING: regular texturing doesn't have texture lock on flipping operations\n");
    }
  }
  // geometric transformation
	Select_ApplyMatrix (true, false, 0, 0);
	Sys_UpdateWindows (W_ALL);
}


void Select_Scale(float x, float y, float z)
{
  Select_GetMid (select_origin);
	for (brush_t* b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
	{
    // ignore fixedsize entities
    if(b->owner->eclass->fixedsize) continue;
		for (face_t* f=b->brush_faces ; f ; f=f->next)
		{
			for (int i=0 ; i<3 ; i++)
			{
        f->planepts[i][0] -= select_origin[0];
        f->planepts[i][1] -= select_origin[1];
        f->planepts[i][2] -= select_origin[2];
        f->planepts[i][0] *= x;
        f->planepts[i][1] *= y;
        f->planepts[i][2] *= z;
        
        f->planepts[i][0] += select_origin[0];
        f->planepts[i][1] += select_origin[1];
        f->planepts[i][2] += select_origin[2];
			}
		}
		Brush_Build(b, false,true,false,false); // don't filter
    if (b->patchBrush)
    {
      vec3_t v;
      v[0] = x;
      v[1] = y;
      v[2] = z;
      Patch_Scale(b->pPatch, select_origin, v);
    }
	}
}

void Select_RotateAxis (int axis, float deg, bool bPaint, bool bMouse)
{
	int		i;
	vec_t	c, s;

	if (deg == 0)
  {
		return;
  }

  if (bMouse)
  {
    VectorCopy(g_pParentWnd->ActiveXY()->RotateOrigin(), select_origin);
  }
  else
  {
	  Select_GetMid (select_origin);
  }

  /*
  if(axis == 2)
  {
    vec3_t rotation;
    VectorSet(rotation, 0, 0, 360 - deg);
    for(brush_t *b = selected_brushes.next; b != &selected_brushes; b = b->next)
      if(b->owner->model.pEdit)
        b->owner->model.pEdit->Rotate(select_origin, rotation);
  }
  */

	select_fliporder = false;

  // the "90" degrees algorithm is mostly used on axis rotate as a speedup and possibly avoiding rounding errors as much as possible
  // previous implementation was doing an indirect-oriented rotation over the plane whereas the general algo below was doing a direct-oriented rotation
  // this was confusing the texture locking algorithms, fixed it to be direct-oriented (side consequence is that the axis rotate toolbar button rotates the other way now)
  // NOTE: previous algo was using vec3_origin in the matrix computation.. 
  //   I don't see what an origin does in linear transformations (3x3 matrixes always relate to a (0,0,0) origin)
  //   in Radiant it's initialized as (0,0,0) and never set to another value
  //   so I got rid of it when it's not used for initialisation tasks (and even if it's not (0,0,0) it should not matter
	if (deg == 90)
	{
		c = 0;
		s = 1;
	}
	else
	{
    c = cos(deg * Q_PI / 180.0);
    s = sin(deg * Q_PI / 180.0);
	}

	for (i=0 ; i<3 ; i++)
	{
		VectorCopy (vec3_origin, select_matrix[i]);
		select_matrix[i][i] = 1;
	}
	
	switch (axis)
	{
	case 0:
		select_matrix[1][1] = c;
		select_matrix[1][2] = s;
		select_matrix[2][1] = -s;
		select_matrix[2][2] = c;
		break;
	case 1:
		select_matrix[0][0] = c;
		select_matrix[0][2] = s;
		select_matrix[2][0] = -s;
		select_matrix[2][2] = c;
		break;
	case 2:
		select_matrix[0][0] = c;
		select_matrix[0][1] = s;
		select_matrix[1][0] = -s;
		select_matrix[1][1] = c;
		break;
	}
	

  // texture locking
	if (g_PrefsDlg.m_bRotateLock)
  {
		// Terrible hack, reversing input rotation angle to correct
		// texture rotation direction for X and Z axes.
		// RotateTextures needs to be changed to fix this properly?
		if (axis == 1)
			RotateTextures(axis, deg, select_origin);
		else
			RotateTextures(axis, deg * -1, select_origin);
  }
  // geometric transformation
	Select_ApplyMatrix(!bMouse, true, axis, deg);//, false);

	if (bPaint)
		Sys_UpdateWindows (W_ALL);
}

/*
================================================================

GROUP SELECTIONS

================================================================
*/

void Select_RealCompleteTall(vec3_t mins, vec3_t maxs)
{
	brush_t	*b, *next;

  int nDim1 = (g_pParentWnd->ActiveXY()->GetViewType() == YZ) ? 1 : 0;
  int nDim2 = (g_pParentWnd->ActiveXY()->GetViewType() == XY) ? 1 : 2;

  g_qeglobals.d_select_mode = sel_brush;

	for (b=active_brushes.next ; b != &active_brushes ; b=next)
	{
		next = b->next;

		if (b->bFiltered)
	 		continue;

		if ( (b->maxs[nDim1] > maxs[nDim1] || b->mins[nDim1] < mins[nDim1]) 
			|| (b->maxs[nDim2] > maxs[nDim2] || b->mins[nDim2] < mins[nDim2]) )
			continue;

		Brush_RemoveFromList (b);
		Brush_AddToList (b, &selected_brushes);
	}
}

void Select_CompleteTall (void)
{
  vec3_t mins, maxs;

  if (!QE_SingleBrush ())
    return;

  Undo_Start ("select complete tall");
  Undo_AddBrushList (&selected_brushes);
  Undo_End();

  VectorCopy (selected_brushes.next->mins, mins);
  VectorCopy (selected_brushes.next->maxs, maxs);
  Select_Delete ();

  Select_RealCompleteTall(mins, maxs);
  Sys_UpdateWindows (W_ALL);
}

void Select_PartialTall (void)
{
	brush_t	*b, *next;
	vec3_t	mins, maxs;

	if (!QE_SingleBrush ())
		return;

  Undo_Start ("select complete tall");
  Undo_AddBrushList (&selected_brushes);
  Undo_End();

	g_qeglobals.d_select_mode = sel_brush;

	VectorCopy (selected_brushes.next->mins, mins);
	VectorCopy (selected_brushes.next->maxs, maxs);
	Select_Delete ();

  int nDim1 = (g_pParentWnd->ActiveXY()->GetViewType() == YZ) ? 1 : 0;
  int nDim2 = (g_pParentWnd->ActiveXY()->GetViewType() == XY) ? 1 : 2;

	for (b=active_brushes.next ; b != &active_brushes ; b=next)
	{
		next = b->next;

		if (b->bFiltered)
	 		continue;

		if ( (b->mins[nDim1] > maxs[nDim1] || b->maxs[nDim1] < mins[nDim1]) 
			|| (b->mins[nDim2] > maxs[nDim2] || b->maxs[nDim2] < mins[nDim2]) )
			continue;


  		Brush_RemoveFromList (b);
		Brush_AddToList (b, &selected_brushes);
	}

	Sys_UpdateWindows (W_ALL);
}

void Select_Touching (void)
{
	brush_t	*b, *next;
	int		i;
	vec3_t	mins, maxs;

	if (!QE_SingleBrush ())
		return;

	g_qeglobals.d_select_mode = sel_brush;

	VectorCopy (selected_brushes.next->mins, mins);
	VectorCopy (selected_brushes.next->maxs, maxs);

	for (b=active_brushes.next ; b != &active_brushes ; b=next)
	{
		next = b->next;

		if (b->bFiltered)
	 		continue;

		for (i=0 ; i<3 ; i++)
			if (b->mins[i] > maxs[i]+1 || b->maxs[i] < mins[i]-1)
				break;

		if (i == 3)
		{
			Brush_RemoveFromList (b);
			Brush_AddToList (b, &selected_brushes);
		}
	}

	Sys_UpdateWindows (W_ALL);
}

void Select_Inside (void)
{
	brush_t	*b, *next;
	int		i;
	vec3_t	mins, maxs;

	if (!QE_SingleBrush ())
		return;

  Undo_Start ("select inside");
  Undo_AddBrushList (&selected_brushes);
  Undo_End();

	g_qeglobals.d_select_mode = sel_brush;

	VectorCopy (selected_brushes.next->mins, mins);
	VectorCopy (selected_brushes.next->maxs, maxs);
	Select_Delete ();

	for (b=active_brushes.next ; b != &active_brushes ; b=next)
	{
		next = b->next;

		if (b->bFiltered)
	 		continue;

		for (i=0 ; i<3 ; i++)
			if (b->maxs[i] > maxs[i] || b->mins[i] < mins[i])
				break;
		if (i == 3)
		{
			Brush_RemoveFromList (b);
			Brush_AddToList (b, &selected_brushes);
		}
	}

	Sys_UpdateWindows (W_ALL);
}

void Select_SelectGroup(entity_t* group)
{
	brush_t*  b;
	//brush_t*  next;

	Undo_Start ("select func group");
	Undo_AddBrushList (&selected_brushes);
	Undo_End();

	Select_Deselect();

	b = &group->brushes;

	do
	{
		b = b->onext;
		Brush_RemoveFromList(b);
		Brush_AddToList(b, &selected_brushes);
	} while( b->onext != &group->brushes );

	Sys_UpdateWindows (W_ALL);
}


void Select_Ungroup(void)
{
	int numselectedgroups;
	entity_t	*e;
	brush_t		*b,* sb;

	numselectedgroups = 0;
	for (sb = selected_brushes.next; sb != &selected_brushes; sb = sb->next)
	{
		e = sb->owner;

		if (e == world_entity || e->eclass->fixedsize)
		{
			continue;
		}

		for (b = e->brushes.onext; b != &e->brushes; b = e->brushes.onext)
		{
			Entity_UnlinkBrush (b);
			Entity_LinkBrush (world_entity, b);
		}
		Entity_Free (e);
		numselectedgroups++;
	}

	if (numselectedgroups <= 0)
	{
		Sys_Printf("No grouped entities selected.\n");
		return;
	}
	Sys_Printf("Ungrouped %d entit%s.\n", numselectedgroups, (numselectedgroups == 1)?"y":"ies");
	Sys_UpdateWindows (W_ALL);
}

/*!
group selected brushes into specified entity
if an entity is empty afterwards, destroy it
*/
void Select_GroupEntity(entity_t* group)
{
  entity_t* e;
  brush_t *b;

  if(group->eclass->fixedsize)
  {
    Sys_FPrintf (SYS_ERR, "Select_GroupEntity: can't group anything to a fixedsize entity\n");
    return;
  }

  for (b = selected_brushes.next; b != &selected_brushes; b = b->next)
  {
    if(b->owner->eclass->fixedsize) continue;
    e = b->owner; 
    Entity_UnlinkBrush(b);
    Entity_LinkBrush(group, b);
    if(e != world_entity && e->brushes.onext == &e->brushes)
    {
      Undo_AddEntity(e);
      Entity_Free(e);
    }
  }
}

/*!
merge all selected entities together into the first one selected
NOTE: makes use of order of selected_brushes list
can be used to move world brushes in an entity, or to merge several ents together
NOTE: didn't devise a strategy on the epairs, we merge into the first entity and use those
*/
void Select_MergeEntity()
{
  entity_t* e = NULL;
  brush_t* b;
  for (b = selected_brushes.next; b != &selected_brushes; b = b->next)
  {
    if(!b->owner->eclass->fixedsize)
    {
      e = b->owner;
      break;
    }
  }

  if(e != NULL)
  {
    Select_GroupEntity(e);

    int count = 0;
    for(b = e->brushes.onext; b != &e->brushes; b=b->onext)
    {
      //Brush_RemoveFromList (b);
  	  //Brush_AddToList(b, &active_brushes);
      count++;
    }
    Sys_Printf ("Merged %d brushes into %s entity\n", count, ValueForKey (e, "classname"));
  }
}

/*
====================
Select_Seperate
====================
*/
void Select_Seperate( void ) {
  Select_GroupEntity( world_entity );
}

/*
====================
Select_MakeStructural
====================
*/
void Select_MakeStructural (void)
{
	brush_t	*b;
	face_t	*f;

	for (b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
	{
		for (f=b->brush_faces ; f ; f=f->next)
			f->texdef.contents &= ~CONTENTS_DETAIL;
		b->bFiltered = FilterBrush(b);
	}
	Select_Deselect ();
	Sys_UpdateWindows (W_ALL);
}

void Select_MakeDetail (void)
{
	brush_t	*b;
	face_t	*f;

	for (b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
	{
		for (f=b->brush_faces ; f ; f=f->next)
			f->texdef.contents |= CONTENTS_DETAIL;
		b->bFiltered = FilterBrush(b);
	}
	Select_Deselect ();
	Sys_UpdateWindows (W_ALL);
}

// brush primitive texture adjustments, use the camera view to map adjustments
// ShiftTextureRelative_BrushPrimit ( s , t ) will shift relative to the texture
void ShiftTextureRelative_Camera(face_t *f, int x, int y)
{
  vec3_t vecS, vecT;
  vec_t XY[2]; // the values we are going to send for translation
  vec_t sgn[2]; // +1 or -1
  int axis[2];
  CamWnd* pCam;

  // get the two relative texture axes for the current texturing
  BrushPrimit_GetRelativeAxes(f, vecS, vecT);

  // center point of the face, project it on the camera space
  vec3_t C;
  VectorClear(C);
  int i;
  for (i=0; i<f->face_winding->numpoints; i++)
  {
    VectorAdd(C,f->face_winding->points[i],C);
  }
  VectorScale(C,1.0/f->face_winding->numpoints,C);

  pCam = g_pParentWnd->GetCamWnd();
  pCam->MatchViewAxes(C, vecS, axis[0], sgn[0]);
  pCam->MatchViewAxes(C, vecT, axis[1], sgn[1]);
  
  // this happens when the two directions can't be mapped on two different directions on the screen
  // then the move will occur against a single axis
  // (i.e. the user is not positioned well enough to send understandable shift commands)
  // NOTE: in most cases this warning is not very relevant because the user would use one of the two axes
  // for which the solution is easy (the other one being unknown)
  // so this warning could be removed
  if (axis[0] == axis[1])
    Sys_FPrintf(SYS_WRN, "Warning: degenerate in ShiftTextureRelative_Camera\n");

  // compute the X Y geometric increments
  // those geometric increments will be applied along the texture axes (the ones we computed above)
  XY[0] = 0;
  XY[1] = 0;
  if (x!=0)
  {
    // moving right/left
    XY[axis[0]] += sgn[0]*x;
  }
  if (y!=0)
  {
    XY[axis[1]] += sgn[1]*y;
  }
  // we worked out a move along vecS vecT, and we now it's geometric amplitude
  // apply it
  ShiftTextureRelative_BrushPrimit(f, XY[0], XY[1]);
}

void Select_ShiftTexture(int x, int y)
{
	brush_t		*b;
	face_t		*f;

  int nFaceCount = g_ptrSelectedFaces.GetSize();

	if(selected_brushes.next == &selected_brushes && nFaceCount == 0)
		return;

	for (b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
	{
		for (f=b->brush_faces ; f ; f=f->next)
		{
			if (g_qeglobals.m_bBrushPrimitMode)
			{
        ShiftTextureRelative_Camera( f, x, y );
			}
			else
			{
				f->texdef.shift[0] += x;
				f->texdef.shift[1] += y;
			}
		}
		Brush_Build(b,true,true,false,false); // don't filter
		if (b->patchBrush)
		{
			Patch_ShiftTexture(b->pPatch, x, y);
		}
	}

	if (nFaceCount > 0)
	{
    for (int i = 0; i < nFaceCount; i++)
    {
      face_t *selFace = reinterpret_cast<face_t*>(g_ptrSelectedFaces.GetAt(i));
      brush_t *selBrush = reinterpret_cast<brush_t*>(g_ptrSelectedFaceBrushes.GetAt(i));
  		if (g_qeglobals.m_bBrushPrimitMode)
	  	{
        ShiftTextureRelative_Camera( selFace, x, y );
      }
  		else
	  	{
		  	selFace->texdef.shift[0] += x;
			  selFace->texdef.shift[1] += y;
  		}
	  	Brush_Build(selBrush,true,true,false,false); // don't filter
    }
	}

	Sys_UpdateWindows (W_CAMERA);
}

//  setting float as input
void Select_ScaleTexture(float x, float y)
{
	brush_t		*b;
	face_t		*f;

  int nFaceCount = g_ptrSelectedFaces.GetSize();

  if(selected_brushes.next == &selected_brushes && nFaceCount == 0)
	{
		return;
	}

	for (b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
	{
		for (f=b->brush_faces ; f ; f=f->next)
		{
			if (g_qeglobals.m_bBrushPrimitMode)
			{
				// apply same scale as the spinner button of the surface inspector
				float	shift[2];
				float	rotate;
				float	scale[2];
				brushprimit_texdef_t bp; 
				// compute normalized texture matrix
				ConvertTexMatWithQTexture( &f->brushprimit_texdef, f->d_texture, &bp, NULL );
				// compute fake shift scale rot
				TexMatToFakeTexCoords( bp.coords, shift, &rotate, scale );
				// update
				scale[0]+=static_cast<float>(x)*0.1;
				scale[1]+=static_cast<float>(y)*0.1;
				// compute new normalized texture matrix
				FakeTexCoordsToTexMat( shift, rotate, scale, bp.coords );
				// apply to face texture matrix
				ConvertTexMatWithQTexture( &bp, NULL, &f->brushprimit_texdef, f->d_texture );
			}
			else
			{
				f->texdef.scale[0] += x;
				f->texdef.scale[1] += y;
			}
		}
		Brush_Build(b,true,true,false,false); // don't filter
		if (b->patchBrush)
		{
			Patch_ScaleTexture(b->pPatch, x, y);
		}
	}

	if (nFaceCount > 0)
	{
    for (int i = 0; i < nFaceCount; i++)
    {
      face_t *selFace = reinterpret_cast<face_t*>(g_ptrSelectedFaces.GetAt(i));
      brush_t *selBrush = reinterpret_cast<brush_t*>(g_ptrSelectedFaceBrushes.GetAt(i));
		  if (g_qeglobals.m_bBrushPrimitMode)
		  {
			  float	shift[2];
			  float	rotate;
			  float	scale[2];
			  brushprimit_texdef_t bp; 
			  ConvertTexMatWithQTexture( &selFace->brushprimit_texdef, selFace->d_texture, &bp, NULL );
			  TexMatToFakeTexCoords( bp.coords, shift, &rotate, scale );
			  scale[0]+=static_cast<float>(x)*0.1;
			  scale[1]+=static_cast<float>(y)*0.1;
			  FakeTexCoordsToTexMat( shift, rotate, scale, bp.coords );
			  ConvertTexMatWithQTexture( &bp, NULL, &selFace->brushprimit_texdef, selFace->d_texture );
		  }
		  else
		  {
			  selFace->texdef.scale[0] += x;
			  selFace->texdef.scale[1] += y;
		  }
		  Brush_Build(selBrush,true,true,false,false); // don't filter
    }
	}

	Sys_UpdateWindows (W_CAMERA);
}

void Select_RotateTexture(int amt)
{
	brush_t		*b;
	face_t		*f;

  int nFaceCount = g_ptrSelectedFaces.GetSize();

  if(selected_brushes.next == &selected_brushes && nFaceCount == 0)
	{
		return;
	}

	for (b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
	{
		for (f=b->brush_faces ; f ; f=f->next)
		{
			if (g_qeglobals.m_bBrushPrimitMode)
			{
				// apply same scale as the spinner button of the surface inspector
				float	shift[2];
				float	rotate;
				float	scale[2];
				brushprimit_texdef_t bp; 
				// compute normalized texture matrix
				ConvertTexMatWithQTexture( &f->brushprimit_texdef, f->d_texture, &bp, NULL );
				// compute fake shift scale rot
				TexMatToFakeTexCoords( bp.coords, shift, &rotate, scale );
				// update
				rotate += amt;
				// compute new normalized texture matrix
				FakeTexCoordsToTexMat( shift, rotate, scale, bp.coords );
				// apply to face texture matrix
				ConvertTexMatWithQTexture( &bp, NULL, &f->brushprimit_texdef, f->d_texture );
			}
			else
			{
				f->texdef.rotate += amt;
				f->texdef.rotate = static_cast<int>(f->texdef.rotate) % 360;
			}
		}
		Brush_Build(b,true,true,false,false); // don't filter
		if (b->patchBrush)
		{
			//Patch_RotateTexture(b->nPatchID, amt);
			Patch_RotateTexture(b->pPatch, amt);
		}
	}
	
	if (nFaceCount > 0)
	{
    for (int i = 0; i < nFaceCount; i++)
    {
      face_t *selFace = reinterpret_cast<face_t*>(g_ptrSelectedFaces.GetAt(i));
      brush_t *selBrush = reinterpret_cast<brush_t*>(g_ptrSelectedFaceBrushes.GetAt(i));
		  if (g_qeglobals.m_bBrushPrimitMode)
		  {
			  float	shift[2];
			  float	rotate;
			  float	scale[2];
			  brushprimit_texdef_t bp; 
			  ConvertTexMatWithQTexture( &selFace->brushprimit_texdef, selFace->d_texture, &bp, NULL );
			  TexMatToFakeTexCoords( bp.coords, shift, &rotate, scale );
			  rotate += amt;
			  FakeTexCoordsToTexMat( shift, rotate, scale, bp.coords );
			  ConvertTexMatWithQTexture( &bp, NULL, &selFace->brushprimit_texdef, selFace->d_texture );
		  }
		  else
		  {
			  selFace->texdef.rotate += amt;
			  selFace->texdef.rotate = static_cast<int>(selFace->texdef.rotate) % 360;
		  }
		  Brush_Build(selBrush,true,true,false,false); // don't filter
    }
	}

	Sys_UpdateWindows (W_CAMERA);
}

// TTimo modified to handle shader architecture:
// expects shader names at input, comparison relies on shader names .. texture names no longer relevant
void FindReplaceTextures(const char* pFind, const char* pReplace, bool bSelected, bool bForce, bool bSelectMatchingFaces)
{
  // http://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=391
  if (strchr(pFind, ' ') || strchr(pReplace, ' '))
  {
    Sys_FPrintf(SYS_WRN, "FindReplaceTextures: '%s' or '%s' have spaces, aborted\n", pFind, pReplace);
    return;
  }
  
	brush_t* pList = (bSelected) ? &selected_brushes : &active_brushes;
	if (!bSelected)
		Select_Deselect();

  //++timo BP mode: replacing a texture in BP mode is not that easy, you need to recompute the texture matrix
  // if the size of the replacing texture differs, otherwise you get wrong scaling
  if (g_qeglobals.m_bBrushPrimitMode)
    Sys_Printf("TODO: finalize find/replace code for brush primitives");

  CPtrArray mFaces;
  for (brush_t* pBrush = pList->next ; pBrush != pList; pBrush = pBrush->next)
  {
    if (!bSelectMatchingFaces && pBrush->patchBrush)
    {
      Patch_FindReplaceTexture(pBrush, pFind, pReplace, bForce);
    }
	
    bool found = false; //spog
    for (face_t* pFace = pBrush->brush_faces; pFace; pFace = pFace->next)
    {
      if(bForce || strcmpi(pFace->pShader->getName(), pFind) == 0)
      {
        if (!bSelectMatchingFaces) {
          pFace->pShader->DecRef();
          pFace->pShader = QERApp_Shader_ForName( pReplace );
          pFace->pShader->IncRef();
          pFace->d_texture = pFace->pShader->getTexture();
          pFace->texdef.SetName(pReplace);
          found = true;
        } else if (bSelectMatchingFaces) {
          mFaces.Add(pFace);
        }
      }
    }

    if (found) // spog - speed increase, only build brushes that changed
      Brush_Build(pBrush);

  }

  if (bSelectMatchingFaces) {
    if (bSelected)
      Select_Deselect();

    int nSize = mFaces.GetSize();
    for (int i = 0; i < nSize; i++) {
      g_SelectedFaces.Add(reinterpret_cast<face_t *>(mFaces.GetAt(i)));
    }
  }

  Sys_UpdateWindows (W_CAMERA);
}

void Select_AllOfType()
{
	brush_t	*b, *next;
	entity_t	*e;
  // if no brush selected, we will select based on texture
  //   the first selected face's texture if any, or the current texture
  // if a brush is selected, we will select entities (first non-worldspawn owner in selected brushes)
	if (selected_brushes.next == &selected_brushes)
	{

    CString strName;
    if (g_ptrSelectedFaces.GetSize() == 0)
    {
      strName = g_qeglobals.d_texturewin.texdef.GetName();
    }
    else
    {
      face_t *selFace = reinterpret_cast<face_t*>(g_ptrSelectedFaces.GetAt(0));
      strName = selFace->texdef.GetName();
    }

    Sys_Printf("Selecting all brushes with the texture %s\n", strName.GetBuffer());

    Select_Deselect();
	  for (b=active_brushes.next ; b != &active_brushes ; b=next)
    {
		  next = b->next;
    	
      if (b->bFiltered)
   	    continue;

      if (b->patchBrush)
      {
        if (strcmpi(strName, b->pPatch->pShader->getName()) == 0)
        {
			    Brush_RemoveFromList (b);
			    Brush_AddToList (b, &selected_brushes);
        }
      }
      else
      {
        for (face_t* pFace = b->brush_faces; pFace; pFace = pFace->next)
        {
          if (strcmpi(strName, pFace->texdef.GetName()) == 0)
          {
			      Brush_RemoveFromList (b);
			      Brush_AddToList (b, &selected_brushes);
          }
        }
      }
    }
    Sys_UpdateWindows(W_ALL);
    return;
  }

  
  b = selected_brushes.next;
	e = b->owner;

  if (e != NULL)
  {
    if (e != world_entity)
    {
      CString strName = e->eclass->name;
      CString strKey, strVal;
      bool bCriteria = GetSelectAllCriteria(strKey, strVal);
      Sys_Printf("Selecting all %s entities\n", strName.GetBuffer());
      Select_Deselect();

	    for (b=active_brushes.next ; b != &active_brushes ; b=next)
    	{
		    next = b->next;
    	 	
			if (b->bFiltered)
	 	    	continue;

        e = b->owner;
        if (e != NULL)
        {
          if (strcmpi(e->eclass->name, strName) == 0)
          {
            bool doIt = true;
            if (bCriteria) {
              CString str = ValueForKey (e, strKey);
              if (str.CompareNoCase(strVal) != 0) {
                doIt = false;
              }
            }
            if (doIt) {
  		        Brush_RemoveFromList (b);
	  	        Brush_AddToList (b, &selected_brushes);
            }
          }
        }
      }
    }
  }
	Sys_UpdateWindows (W_ALL);

}

void Select_Reselect()
{
  Select_Brush(selected_brushes.next);  
  Sys_UpdateWindows (W_ALL);
}


void Select_FitTexture(int nHeight, int nWidth)
{
	brush_t		*b;

  int nFaceCount = g_ptrSelectedFaces.GetSize();

  if(selected_brushes.next == &selected_brushes && nFaceCount == 0)
		return;

  for (b=selected_brushes.next ; b != &selected_brushes ; b=b->next)
	{
    Brush_FitTexture(b, nHeight, nWidth);
		Brush_Build(b,true,true,false,false); // don't filter
	}

	if (nFaceCount > 0)
	{
    for (int i = 0; i < nFaceCount; i++)
    {
      face_t *selFace = reinterpret_cast<face_t*>(g_ptrSelectedFaces.GetAt(i));
      brush_t *selBrush = reinterpret_cast<brush_t*>(g_ptrSelectedFaceBrushes.GetAt(i));
      Face_FitTexture(selFace, nHeight, nWidth);
	  	Brush_Build(selBrush,true,true,false,false); // don't filter
    }
	}

	Sys_UpdateWindows (W_CAMERA);
}

void Select_Hide()
{
  for (brush_t* b=selected_brushes.next ; b && b != &selected_brushes ; b=b->next)
  {
	b->hiddenBrush = true;
    b->bFiltered = true;
  }
  Sys_UpdateWindows (W_ALL);
}

void Select_ShowAllHidden()
{
  brush_t* b;
  for (b=selected_brushes.next ; b && b != &selected_brushes ; b=b->next)
  {
	if (b->hiddenBrush)
	{
		b->hiddenBrush = false;
		b->bFiltered = FilterBrush(b);
	}
  }
  for (b=active_brushes.next ; b && b != &active_brushes ; b=b->next)
  {
	if (b->hiddenBrush)
	{
		b->hiddenBrush = false;
		b->bFiltered = FilterBrush(b);
	}
  }
  Sys_UpdateWindows (W_ALL);
}


/*
============
Select_Invert
============
*/
void Select_Invert(void)
{
  brush_t *next, *prev, *b;

  Sys_Printf("inverting selection...\n");

  next = active_brushes.next;
  prev = active_brushes.prev;
  if (selected_brushes.next != &selected_brushes)
  {
    active_brushes.next = selected_brushes.next;
    active_brushes.prev = selected_brushes.prev;
    active_brushes.next->prev = &active_brushes;
    active_brushes.prev->next = &active_brushes;
  }
  else
  {
    active_brushes.next = &active_brushes;
    active_brushes.prev = &active_brushes;
  }
  if (next != &active_brushes)
  {
    selected_brushes.next = next;
    selected_brushes.prev = prev;
    selected_brushes.next->prev = &selected_brushes;
    selected_brushes.prev->next = &selected_brushes;
  }
  else
  {
    selected_brushes.next = &selected_brushes;
    selected_brushes.prev = &selected_brushes;
  }

  // now check if any hidden brush is selected
  for (b = selected_brushes.next; b != &selected_brushes; )
  {
	if (b->patchBrush)
		b->pPatch->bSelected = true;

    if (b->bFiltered)
    {
      brush_t *pb = b;
			b = b->next;
      Brush_RemoveFromList (pb);
      Brush_AddToList (pb, &active_brushes);
    }
    else b = b->next;

  }
  
  for (b = active_brushes.next; b != &active_brushes; b = b->next)
  {
	  if (b->patchBrush)
    {
		  b->pPatch->bSelected = false;
    }
  }
  
  // since invert selection only works at the brush level, 
  // set g_qeglobals.d_select_mode accordingly
  g_qeglobals.d_select_mode = sel_brush;

  // since invert selection only works at the brush level,
  // set g_qeglobals.d_select_mode accordingly
  g_qeglobals.d_select_mode = sel_brush;

  Sys_UpdateWindows(W_ALL);

  Sys_Printf("done.\n");
}

#ifdef ENABLE_GROUPS
/* 
===========
Select_Name
===========
*/
void Select_Name(const char *pName)
{
	if (g_qeglobals.m_bBrushPrimitMode)
  {
	  for (brush_t* b=selected_brushes.next ; b && b != &selected_brushes ; b=b->next)
	  {
      Brush_SetEpair(b, "Name", pName);
	  }
  }
}

/* 
=================
Select_AddToGroup
add selected brushes to a group, update the tree
=================
*/
void Select_AddToGroup(const char *pName)
{
	if (g_qeglobals.m_bBrushPrimitMode)
  {
	  for (brush_t* b=selected_brushes.next ; b && b != &selected_brushes ; b=b->next)
	  {
      Brush_SetEpair(b, "group", pName);
			Group_AddToProperGroup(b);
	  }
  }
}
#endif