GtkRadiant/plugins/textool/TexTool.cpp

/*
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
*/

//-----------------------------------------------------------------------------
//
// DESCRIPTION:
// main plugin implementation
// texturing tools for Radiant
//

#include "StdAfx.h"

static void dialog_button_callback (GtkWidget *widget, gpointer data)
{
  GtkWidget *parent;
  int *loop, *ret;
 
  parent = gtk_widget_get_toplevel (widget);
  loop = (int*)g_object_get_data (G_OBJECT (parent), "loop");
  ret = (int*)g_object_get_data (G_OBJECT (parent), "ret");
 
  *loop = 0;
  *ret = (int)data;
}
 
static gint dialog_delete_callback (GtkWidget *widget, GdkEvent* event, gpointer data)
{
  int *loop;
 
  gtk_widget_hide (widget);
  loop = (int*)g_object_get_data (G_OBJECT (widget), "loop");
  *loop = 0;

  return TRUE;
}

int DoMessageBox (const char* lpText, const char* lpCaption, guint32 uType)
{
  GtkWidget *window, *w, *vbox, *hbox;
  int mode = (uType & MB_TYPEMASK), ret, loop = 1;
 
  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  gtk_signal_connect (GTK_OBJECT (window), "delete_event",
                      GTK_SIGNAL_FUNC (dialog_delete_callback), NULL);
  gtk_signal_connect (GTK_OBJECT (window), "destroy",
                      GTK_SIGNAL_FUNC (gtk_widget_destroy), NULL);
  gtk_window_set_title (GTK_WINDOW (window), lpCaption);
  gtk_container_border_width (GTK_CONTAINER (window), 10);
  g_object_set_data (G_OBJECT (window), "loop", &loop);
  g_object_set_data (G_OBJECT (window), "ret", &ret);
  gtk_widget_realize (window);
 
  vbox = gtk_vbox_new (FALSE, 10);
  gtk_container_add (GTK_CONTAINER (window), vbox);
  gtk_widget_show (vbox);
 
  w = gtk_label_new (lpText);
  gtk_box_pack_start (GTK_BOX (vbox), w, FALSE, FALSE, 2);
  gtk_label_set_justify (GTK_LABEL (w), GTK_JUSTIFY_LEFT);
  gtk_widget_show (w);
 
  w = gtk_hseparator_new ();
  gtk_box_pack_start (GTK_BOX (vbox), w, FALSE, FALSE, 2);
  gtk_widget_show (w);
 
  hbox = gtk_hbox_new (FALSE, 10);
  gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 2);
  gtk_widget_show (hbox);
 
  if (mode == MB_OK)
  {
    w = gtk_button_new_with_label ("Ok");
    gtk_box_pack_start (GTK_BOX (hbox), w, TRUE, TRUE, 0);
    gtk_signal_connect (GTK_OBJECT (w), "clicked",
                        GTK_SIGNAL_FUNC (dialog_button_callback), GINT_TO_POINTER (IDOK));
    GTK_WIDGET_SET_FLAGS (w, GTK_CAN_DEFAULT);
    gtk_widget_grab_default (w);
    gtk_widget_show (w);
    ret = IDOK;
  }
  else if (mode ==  MB_OKCANCEL)
  {
    w = gtk_button_new_with_label ("Ok");
    gtk_box_pack_start (GTK_BOX (hbox), w, TRUE, TRUE, 0);
    gtk_signal_connect (GTK_OBJECT (w), "clicked",
                        GTK_SIGNAL_FUNC (dialog_button_callback), GINT_TO_POINTER (IDOK));
    GTK_WIDGET_SET_FLAGS (w, GTK_CAN_DEFAULT);
    gtk_widget_grab_default (w);
    gtk_widget_show (w);
 
    w = gtk_button_new_with_label ("Cancel");
    gtk_box_pack_start (GTK_BOX (hbox), w, TRUE, TRUE, 0);
    gtk_signal_connect (GTK_OBJECT (w), "clicked",
                        GTK_SIGNAL_FUNC (dialog_button_callback), GINT_TO_POINTER (IDCANCEL));
    gtk_widget_show (w);
    ret = IDCANCEL;
  }
  else if (mode == MB_YESNOCANCEL)
  {
    w = gtk_button_new_with_label ("Yes");
    gtk_box_pack_start (GTK_BOX (hbox), w, TRUE, TRUE, 0);
    gtk_signal_connect (GTK_OBJECT (w), "clicked",
                        GTK_SIGNAL_FUNC (dialog_button_callback), GINT_TO_POINTER (IDYES));
    GTK_WIDGET_SET_FLAGS (w, GTK_CAN_DEFAULT);
    gtk_widget_grab_default (w);
    gtk_widget_show (w);
 
    w = gtk_button_new_with_label ("No");
    gtk_box_pack_start (GTK_BOX (hbox), w, TRUE, TRUE, 0);
    gtk_signal_connect (GTK_OBJECT (w), "clicked",
                        GTK_SIGNAL_FUNC (dialog_button_callback), GINT_TO_POINTER (IDNO));
    gtk_widget_show (w);
 
    w = gtk_button_new_with_label ("Cancel");
    gtk_box_pack_start (GTK_BOX (hbox), w, TRUE, TRUE, 0);
    gtk_signal_connect (GTK_OBJECT (w), "clicked",
                        GTK_SIGNAL_FUNC (dialog_button_callback), GINT_TO_POINTER (IDCANCEL));
    gtk_widget_show (w);
    ret = IDCANCEL;
  }
  else /* if (mode == MB_YESNO) */
  {
    w = gtk_button_new_with_label ("Yes");
    gtk_box_pack_start (GTK_BOX (hbox), w, TRUE, TRUE, 0);
    gtk_signal_connect (GTK_OBJECT (w), "clicked",
                        GTK_SIGNAL_FUNC (dialog_button_callback), GINT_TO_POINTER (IDYES));
    GTK_WIDGET_SET_FLAGS (w, GTK_CAN_DEFAULT);
    gtk_widget_grab_default (w);
    gtk_widget_show (w);
 
    w = gtk_button_new_with_label ("No");
    gtk_box_pack_start (GTK_BOX (hbox), w, TRUE, TRUE, 0);
    gtk_signal_connect (GTK_OBJECT (w), "clicked",
                        GTK_SIGNAL_FUNC (dialog_button_callback), GINT_TO_POINTER (IDNO));
    gtk_widget_show (w);
    ret = IDNO;
  }
 
  gtk_widget_show (window);
  gtk_grab_add (window);
 
  while (loop)
    gtk_main_iteration ();
 
  gtk_grab_remove (window);
  gtk_widget_destroy (window);
 
  return ret;
}

// Radiant function table
_QERFuncTable_1 g_FuncTable;

// plugin name
const char *PLUGIN_NAME = "Q3 Texture Tools";

// commands in the menu
const char *PLUGIN_COMMANDS = "About...;Go...";

// cast to GtkWidget*
void *g_pMainWnd;
IWindow *g_pToolWnd = NULL; // handle to the window
CWindowListener g_Listen;

// plugin interfaces ---------------------------
bool		        g_bQglInitDone = false;
OpenGLBinding		g_QglTable;
bool			g_bSelectedFaceInitDone = false;
_QERSelectedFaceTable	g_SelectedFaceTable;
bool            g_bUITable = false;
_QERUITable     g_UITable;

// selected face -------------------------------
// we use this one to commit / read with Radiant
_QERFaceData			g_SelectedFaceData;
// g_pSelectedFaceWindings gets allocated with MAX_POINTS_ON_WINDING at plugin startup ( QERPlug_Init )
winding_t				*g_pSelectedFaceWinding = NULL;
const float				g_ViewportRatio = 1.2f;
// usefull class to manage the 2D view
C2DView					g_2DView;
// control points to move the polygon
CControlPointsManagerBFace	g_ControlPointsBFace;
// tells if a face is selected and we have something to render in the TexWindow
bool					g_bTexViewReady = false;
// data for texture work
int						g_NumPoints;
CtrlPts_t				g_WorkWinding;
// reference _QERFaceData we use on Cancel, and for Commit
_QERFaceData			g_CancelFaceData;

// patches -------------------------------------
bool					g_bPatch = false;
//++timo we use this one to grab selected patchMesh_t
// FIXME: update when there's a real interface to read/write patches
bool					g_bSurfaceTableInitDone = false;
_QERAppSurfaceTable		g_SurfaceTable;
CControlPointsManagerPatch	g_ControlPointsPatch;
// data for texture work
patchMesh_t*			g_pPatch;
// we only use ctrl[][].st in this one
patchMesh_t				g_WorkPatch;
// copy of initial g_pPatch for Cancel situation
patchMesh_t				g_CancelPatch;

// ---------------------------------------------
// holds the manager we are currently using
CControlPointsManager	*g_pManager = NULL;

// ---------------------------------------------
// globals flags for user preferences
//++timo TODO: this should be retrieved from the Editor's .INI prefs in a dedicated interface
// update camera view during manipulation ?
bool					g_bPrefsUpdateCameraView = true;

// misc ----------------------------------------
bool					g_bHelp = false;
//++timo FIXME: used to close the plugin window if InitTexView fails
// it's dirty, only use is to prevent infinite loop in DialogProc
bool					g_bClosing = false;

const char *PLUGIN_ABOUT = "Texture Tools for Radiant\n\n"
                           "Gtk port by Leonardo Zide (leo@lokigames.com)\n"
                           "Original version by Timothee \"TTimo\" Besset (timo@qeradiant.com)";

extern "C" void* WINAPI QERPlug_GetFuncTable ()
{
  return &g_FuncTable;
}

const char* QERPlug_Init (void* hApp, void *pWidget)
{
  int size;
  GtkWidget* pMainWidget = static_cast<GtkWidget*>(pWidget);

  g_pMainWnd = pMainWidget;
  memset(&g_FuncTable, 0, sizeof(_QERFuncTable_1));
  g_FuncTable.m_nSize = sizeof(_QERFuncTable_1);
  size = (int)((winding_t *)0)->points[MAX_POINTS_ON_WINDING];
  g_pSelectedFaceWinding = (winding_t *)malloc( size );
  memset( g_pSelectedFaceWinding, 0, size );
  return "Texture tools for Radiant";
}

const char* QERPlug_GetName()
{
  return (char*)PLUGIN_NAME;
}

const char* QERPlug_GetCommandList()
{
  return PLUGIN_COMMANDS;
}

char *TranslateString (char *buf)
{
  static	char	buf2[32768];
  int		i, l;
  char	*out;

  l = strlen(buf);
  out = buf2;
  for (i=0 ; i<l ; i++)
  {
    if (buf[i] == '\n')
    {
      *out++ = '\r';
      *out++ = '\n';
    }
    else
      *out++ = buf[i];
  }
  *out++ = 0;

  return buf2;
}

// called by InitTexView to fit the view against the bounding box of control points
void FitView (IWindow* hwndDlg, int TexSize[2])
{
  // apply a ratio to get the area we'll draw
  g_2DView.m_Center[0] = 0.5f * ( g_2DView.m_Mins[0] + g_2DView.m_Maxs[0] );
  g_2DView.m_Center[1] = 0.5f * ( g_2DView.m_Mins[1] + g_2DView.m_Maxs[1] );
  g_2DView.m_Mins[0] = g_2DView.m_Center[0] + g_ViewportRatio*( g_2DView.m_Mins[0] - g_2DView.m_Center[0] );
  g_2DView.m_Mins[1] = g_2DView.m_Center[1] + g_ViewportRatio*( g_2DView.m_Mins[1] - g_2DView.m_Center[1] );
  g_2DView.m_Maxs[0] = g_2DView.m_Center[0] + g_ViewportRatio*( g_2DView.m_Maxs[0] - g_2DView.m_Center[0] );
  g_2DView.m_Maxs[1] = g_2DView.m_Center[1] + g_ViewportRatio*( g_2DView.m_Maxs[1] - g_2DView.m_Center[1] );

  g_2DView.m_rect.left = 0;
  g_2DView.m_rect.top = 0;
  g_2DView.m_rect.bottom = hwndDlg->getHeight();
  g_2DView.m_rect.right = hwndDlg->getWidth();

  // we need to draw this area, now compute a bigger area so the texture scale is the same along X and Y
  // compute box shape in XY space, let's say X <-> S we'll get a ratio for Y: 
  if (!g_bPatch)
  {
    g_SelectedFaceTable.m_pfnGetTextureSize( 0, TexSize );
  }
  else
  {
    TexSize[0] = g_pPatch->d_texture->width;
    TexSize[1] = g_pPatch->d_texture->height;
  }
  // we want a texture with the same X / Y ratio
  // compute XY space / window size ratio
  float SSize = (float)fabs( g_2DView.m_Maxs[0] - g_2DView.m_Mins[0] );
  float TSize = (float)fabs( g_2DView.m_Maxs[1] - g_2DView.m_Mins[1] );
  float XSize = TexSize[0] * SSize;
  float YSize = TexSize[1] * TSize;
  float RatioX = XSize / (float)abs( g_2DView.m_rect.left - g_2DView.m_rect.right );
  float RatioY = YSize / (float)abs( g_2DView.m_rect.top - g_2DView.m_rect.bottom );
  if ( RatioX > RatioY )
  {
    YSize = (float)abs( g_2DView.m_rect.top - g_2DView.m_rect.bottom ) * RatioX;
    TSize = YSize / (float)TexSize[1];
  }
  else
  {
    XSize = (float)abs( g_2DView.m_rect.left - g_2DView.m_rect.right ) * RatioY;
    SSize = XSize / (float)TexSize[0];
  }
  g_2DView.m_Mins[0] = g_2DView.m_Center[0] - 0.5f * SSize;
  g_2DView.m_Maxs[0] = g_2DView.m_Center[0] + 0.5f * SSize;
  g_2DView.m_Mins[1] = g_2DView.m_Center[1] - 0.5f * TSize;
  g_2DView.m_Maxs[1] = g_2DView.m_Center[1] + 0.5f * TSize;
}

// call this one each time we need to re-init
//++timo TODO: re-init objects state, g_2DView and g_ControlPointsManager
void InitTexView( IWindow* hwndDlg )
{
  // size of the texture we are working on
  int TexSize[2];
  g_bTexViewReady = false;
  if (g_SelectedFaceTable.m_pfnGetSelectedFaceCount() != 0)
  {
    g_SelectedFaceTable.m_pfnGetFaceInfo( 0, &g_SelectedFaceData, g_pSelectedFaceWinding );
    g_bPatch = false;
    int i;
    // we have something selected
    // setup: compute BBox for the winding ( in ST space )
    //++timo FIXME: move this in a C2DView member ? used as well for patches
    g_2DView.m_Mins[0] = +9999.0f; g_2DView.m_Mins[1] = +9999.0f;
    g_2DView.m_Maxs[0] = -9999.0f; g_2DView.m_Maxs[1] = -9999.0f;
    for ( i=0; i<g_pSelectedFaceWinding->numpoints; i++ )
    {
      if ( g_pSelectedFaceWinding->points[i][3] < g_2DView.m_Mins[0] )
        g_2DView.m_Mins[0] = g_pSelectedFaceWinding->points[i][3];
      if ( g_pSelectedFaceWinding->points[i][3] > g_2DView.m_Maxs[0] )
        g_2DView.m_Maxs[0] = g_pSelectedFaceWinding->points[i][3];
      if ( g_pSelectedFaceWinding->points[i][4] < g_2DView.m_Mins[1] )
        g_2DView.m_Mins[1] = g_pSelectedFaceWinding->points[i][4];
      if ( g_pSelectedFaceWinding->points[i][4] > g_2DView.m_Maxs[1] )
        g_2DView.m_Maxs[1] = g_pSelectedFaceWinding->points[i][4];
    }
    // NOTE: FitView will read and init TexSize
    FitView( hwndDlg, TexSize );
    // now init the work tables
    g_NumPoints = g_pSelectedFaceWinding->numpoints;
    for ( i=0; i<g_NumPoints; i++ )
    {
      g_WorkWinding.data[i][0] = g_pSelectedFaceWinding->points[i][3];
      g_WorkWinding.data[i][1] = g_pSelectedFaceWinding->points[i][4];
    }
    g_ControlPointsBFace.Init( g_NumPoints, &g_WorkWinding, &g_2DView, TexSize, &g_SelectedFaceData, &g_QglTable );
    // init snap-to-grid
    float fTexStep[2];
    fTexStep[0] = 1.0f / float(TexSize[0]);
    fTexStep[1] = 1.0f / float(TexSize[1]);
    g_2DView.SetGrid( fTexStep[0], fTexStep[1] );
    g_pManager = &g_ControlPointsBFace;
    // prepare the "Cancel" data
    memcpy( &g_CancelFaceData, &g_SelectedFaceData, sizeof(_QERFaceData) );
    // we are done
    g_bTexViewReady = true;
  }
  else if ( g_SurfaceTable.m_pfnAnyPatchesSelected())
  {
    g_pPatch = g_SurfaceTable.m_pfnGetSelectedPatch();
    g_bPatch = true;
    int i,j;
    // compute BBox for all patch points
    g_2DView.m_Mins[0] = +9999.0f; g_2DView.m_Mins[1] = +9999.0f;
    g_2DView.m_Maxs[0] = -9999.0f; g_2DView.m_Maxs[1] = -9999.0f;
    for ( i=0; i<g_pPatch->width; i++ )
    {
      for ( j=0; j<g_pPatch->height; j++ )
      {
        if ( g_pPatch->ctrl[i][j].st[0] < g_2DView.m_Mins[0] )
          g_2DView.m_Mins[0] = g_pPatch->ctrl[i][j].st[0];
        if ( g_pPatch->ctrl[i][j].st[0] > g_2DView.m_Maxs[0] )
          g_2DView.m_Maxs[0] = g_pPatch->ctrl[i][j].st[0];
        if ( g_pPatch->ctrl[i][j].st[1] < g_2DView.m_Mins[1] )
          g_2DView.m_Mins[1] = g_pPatch->ctrl[i][j].st[1];
        if ( g_pPatch->ctrl[i][j].st[1] > g_2DView.m_Maxs[1] )
          g_2DView.m_Maxs[1] = g_pPatch->ctrl[i][j].st[1];
      }
    }
    FitView( hwndDlg, TexSize);
    // init the work tables
    g_WorkPatch = *g_pPatch;
    g_ControlPointsPatch.Init( &g_WorkPatch, &g_2DView, &g_QglTable, g_pPatch );
    // init snap-to-grid
    float fTexStep[2];
    fTexStep[0] = 1.0f / float(TexSize[0]);
    fTexStep[1] = 1.0f / float(TexSize[1]);
    g_2DView.SetGrid( fTexStep[0], fTexStep[1] );
    g_pManager = &g_ControlPointsPatch;
    // prepare the "cancel" data
    g_CancelPatch = *g_pPatch;
    // we are done
    g_bTexViewReady = true;
  }
}

void Textool_Validate()
{
  // validate current situation into the main view
  g_pManager->Commit( );
  // for a brush face we have an aditionnal step
  if (!g_bPatch)
  {
    // tell Radiant to update (will also send update windows messages )
    g_SelectedFaceTable.m_pfnSetFaceInfo( 0, &g_SelectedFaceData );
  }
  else
  {
    // ask to rebuild the patch display data
    g_pPatch->bDirty = true;
    // send a repaint to the camera window as well
    g_FuncTable.m_pfnSysUpdateWindows( W_CAMERA );
  }
  // we'll need to update after that as well:
  g_bTexViewReady = false;
  // send a repaint message
  g_pToolWnd->Redraw ();
}

void Textool_Cancel()
{
  if (!g_bPatch)
  {
    // tell Radiant to update (will also send update windows messages )
    g_SelectedFaceTable.m_pfnSetFaceInfo( 0, &g_CancelFaceData );
  }
  else
  {
    *g_pPatch = g_CancelPatch;
    g_pPatch->bDirty = true;
    g_FuncTable.m_pfnSysUpdateWindows( W_CAMERA );
  }
  // do not call destroy, decref it
  g_pToolWnd->DecRef();
  g_pToolWnd = NULL;
}

static void DoExpose ()
{
  int i,j;

  g_2DView.PreparePaint();
  g_QglTable.m_pfn_qglColor3f(1, 1, 1);
  // draw the texture background
  g_QglTable.m_pfn_qglPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
  if (!g_bPatch)
  {
    g_QglTable.m_pfn_qglBindTexture( GL_TEXTURE_2D, g_SelectedFaceTable.m_pfnGetTextureNumber(0) );
  }
  else
  {
    g_QglTable.m_pfn_qglBindTexture( GL_TEXTURE_2D, g_pPatch->d_texture->texture_number );
  }

  g_QglTable.m_pfn_qglEnable( GL_TEXTURE_2D );
  g_QglTable.m_pfn_qglBegin( GL_QUADS );
  g_QglTable.m_pfn_qglTexCoord2f( g_2DView.m_Mins[0], g_2DView.m_Mins[1] );
  g_QglTable.m_pfn_qglVertex2f( g_2DView.m_Mins[0], g_2DView.m_Mins[1] );
  g_QglTable.m_pfn_qglTexCoord2f( g_2DView.m_Maxs[0], g_2DView.m_Mins[1] );
  g_QglTable.m_pfn_qglVertex2f( g_2DView.m_Maxs[0], g_2DView.m_Mins[1] );
  g_QglTable.m_pfn_qglTexCoord2f( g_2DView.m_Maxs[0], g_2DView.m_Maxs[1] );
  g_QglTable.m_pfn_qglVertex2f( g_2DView.m_Maxs[0], g_2DView.m_Maxs[1] );
  g_QglTable.m_pfn_qglTexCoord2f( g_2DView.m_Mins[0], g_2DView.m_Maxs[1] );
  g_QglTable.m_pfn_qglVertex2f( g_2DView.m_Mins[0], g_2DView.m_Maxs[1] );
  g_QglTable.m_pfn_qglEnd();
  g_QglTable.m_pfn_qglDisable( GL_TEXTURE_2D );

  if (!g_bPatch)
  {
    g_QglTable.m_pfn_qglBegin( GL_LINE_LOOP );
    for ( i=0; i<g_NumPoints; i++ )
    {
      g_QglTable.m_pfn_qglVertex2f( g_WorkWinding.data[i][0], g_WorkWinding.data[i][1] );
    }
    g_QglTable.m_pfn_qglEnd();
  }
  else
  {
    g_QglTable.m_pfn_qglBegin( GL_LINES );
    for ( i=0; i<g_pPatch->width; i++ )
      for ( j=0; j<g_pPatch->height; j++ )
      {
	if ( i < g_pPatch->width-1 )
	{
	  g_QglTable.m_pfn_qglVertex2f( g_WorkPatch.ctrl[i][j].st[0], g_WorkPatch.ctrl[i][j].st[1] );
	  g_QglTable.m_pfn_qglVertex2f( g_WorkPatch.ctrl[i+1][j].st[0], g_WorkPatch.ctrl[i+1][j].st[1] );
	}

	if ( j < g_pPatch->height-1 )
	{
	  g_QglTable.m_pfn_qglVertex2f( g_WorkPatch.ctrl[i][j].st[0], g_WorkPatch.ctrl[i][j].st[1] );
	  g_QglTable.m_pfn_qglVertex2f( g_WorkPatch.ctrl[i][j+1].st[0], g_WorkPatch.ctrl[i][j+1].st[1] );
	}
      }
    g_QglTable.m_pfn_qglEnd();
  }

  // let the control points manager render
  g_pManager->render( );
}

static bool CanProcess ()
{
  if (!g_bTexViewReady && !g_bClosing)
  {
    InitTexView (g_pToolWnd);

    if (!g_bTexViewReady)
    {
      g_bClosing = true;
      DoMessageBox ("You must have brush primitives activated in your project settings and\n"
                    "have a patch or a single face selected to use the TexTool plugin.\n"
                    "See plugins/TexToolHelp for documentation.", "TexTool plugin", MB_ICONERROR | MB_OK);
      // decref, this will destroy
      g_pToolWnd->DecRef();
      g_pToolWnd = NULL;
      return 0;
    }
    else
      g_bClosing = false;
  }
  else if (!g_bTexViewReady && g_bClosing)
  {
    return 0;
  }

  return 1;
}

#if 0
static void button_press (GtkWidget *widget, GdkEventButton *event, gpointer data)
{
  if (CanProcess ())
  {
    switch (event->button)
    {
    case 1:
      g_pManager->OnLButtonDown (event->x, event->y); break;
    case 3:
      g_2DView.OnRButtonDown (event->x, event->y); break;
    }
  }
}

static void button_release (GtkWidget *widget, GdkEventButton *event, gpointer data)
{
  if (CanProcess ())
  {
    switch (event->button)
    {
    case 1:
      g_pManager->OnLButtonUp (event->x, event->y); break;
    case 3:
      g_2DView.OnRButtonUp (event->x, event->y); break;
    }
  }
}

static void motion (GtkWidget *widget, GdkEventMotion *event, gpointer data)
{
  if (CanProcess ())
  {
    if (g_2DView.OnMouseMove (event->x, event->y))
      return;

    if (g_pManager->OnMouseMove (event->x, event->y))
      return;
  }
}

static gint expose (GtkWidget *widget, GdkEventExpose *event, gpointer data)
{
  if (event->count > 0)
    return TRUE;

  if (!CanProcess ())
    return TRUE;

  if (g_bTexViewReady)
  {
    g_2DView.m_rect.bottom = widget->allocation.height;
    g_2DView.m_rect.right = widget->allocation.width;

    if (!g_QglTable.m_pfn_glwidget_make_current (g_pToolWidget))
    {
      Sys_Printf("TexTool: glMakeCurrent failed\n");
      return TRUE;
    }

    DoExpose ();

    g_QglTable.m_pfn_glwidget_swap_buffers (g_pToolWidget);
  }

  return TRUE;
}

static gint keypress (GtkWidget* widget, GdkEventKey* event, gpointer data)
{
  unsigned int code = gdk_keyval_to_upper(event->keyval);

  if (code == GDK_Escape)
  {
    gtk_widget_destroy (g_pToolWnd);
    g_pToolWnd = NULL;
    return TRUE;
  }

  if (CanProcess ())
  {
    if (g_2DView.OnKeyDown (code))
      return FALSE;

    if (code == GDK_Return)
    {
      Textool_Validate();
      return FALSE;
    }
  }

  return TRUE;
}

static gint close (GtkWidget *widget, GdkEvent* event, gpointer data)
{
  gtk_widget_destroy (widget);
  g_pToolWnd = NULL;

  return TRUE;
}

static GtkWidget* CreateOpenGLWidget ()
{
  g_pToolWidget = g_QglTable.m_pfn_glwidget_new (FALSE, g_QglTable.m_pfn_GetQeglobalsGLWidget ());

  gtk_widget_set_events (g_pToolWidget, GDK_DESTROY | GDK_EXPOSURE_MASK | GDK_KEY_PRESS_MASK |
			 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK);

  // Connect signal handlers
  gtk_signal_connect (GTK_OBJECT (g_pToolWidget), "expose_event", GTK_SIGNAL_FUNC (expose), NULL);
  gtk_signal_connect (GTK_OBJECT (g_pToolWidget), "motion_notify_event",
		      GTK_SIGNAL_FUNC (motion), NULL);
  gtk_signal_connect (GTK_OBJECT (g_pToolWidget), "button_press_event",
		      GTK_SIGNAL_FUNC (button_press), NULL);
  gtk_signal_connect (GTK_OBJECT (g_pToolWidget), "button_release_event",
		      GTK_SIGNAL_FUNC (button_release), NULL);

  gtk_signal_connect (GTK_OBJECT (g_pToolWnd), "delete_event", GTK_SIGNAL_FUNC (close), NULL);
  gtk_signal_connect (GTK_OBJECT (g_pToolWnd), "key_press_event",
		      GTK_SIGNAL_FUNC (keypress), NULL);

  return g_pToolWidget;
}
#endif

#if 0
static void DoPaint ()
{
  if (!CanProcess ())
    return;
  
  if (g_bTexViewReady)
  {
    g_2DView.m_rect.bottom = g_pToolWnd->getHeight();
    g_2DView.m_rect.right = g_pToolWnd->getWidth();
    
    // set GL_PROJECTION
    g_2DView.PreparePaint();
    // render the objects
    // the master is not rendered the same way, draw over a unified texture background
    g_2DView.TextureBackground(g_DrawObjects[0].pObject->getTextureNumber());
    if (g_nDrawObjects >= 1)
    {
      int i;
      for (i=1;i<g_nDrawObjects;i++)
      {
        // we use a first step to the GL_MODELVIEW for the master object
        // GL_MODELVIEW will be altered in RenderAuxiliary too
        g_DrawObjects[0].pObject->PrepareModelView(g_DrawObjects[i].pTopo);
        g_DrawObjects[i].pObject->RenderAuxiliary();
      }
    }
    // draw the polygon outline and control points
    g_DrawObjects[0].pObject->PrepareModelView(NULL);
    g_DrawObjects[0].pObject->RenderUI();
  }
}
#endif

bool CWindowListener::OnLButtonDown(guint32 nFlags, double x, double y)
{
  if (CanProcess())
  {
    g_pManager->OnLButtonDown((int)x, (int)y);
    return true;
  }
  return false;
}

bool CWindowListener::OnRButtonDown(guint32 nFlags, double x, double y)
{
  if (CanProcess())
  {
    g_2DView.OnRButtonDown ((int)x, (int)y);
    return true;
  }
  return false;
}

bool CWindowListener::OnLButtonUp(guint32 nFlags, double x, double y)
{
  if (CanProcess())
  {
    g_pManager->OnLButtonUp((int)x, (int)y);
    return true;
  }
  return false;
}

bool CWindowListener::OnRButtonUp(guint32 nFlags, double x, double y)
{
  if (CanProcess())
  {
    g_2DView.OnRButtonUp ((int)x, (int)y);
    return true;
  }
  return false;
}

bool CWindowListener::OnMouseMove(guint32 nFlags, double x, double y)
{
  if (CanProcess ())
  {
    if (g_2DView.OnMouseMove ((int)x, (int)y))
      return true;

    g_pManager->OnMouseMove((int)x, (int)y);
    return true;
  }
  return false;
}

// the widget is closing
void CWindowListener::Close()
{
  g_pToolWnd = NULL;
}

bool CWindowListener::Paint()
{
  if (!CanProcess ())
    return false;

  if (g_bTexViewReady)
    DoExpose();

  return true;
}

bool CWindowListener::OnKeyPressed(char *s)
{
  if (!strcmp(s,"Escape"))
  {
    Textool_Cancel();
    return TRUE;
  }
  if (CanProcess ())
  {
    if (g_2DView.OnKeyDown (s))
      return TRUE;

    if (!strcmp(s,"Return"))
    {
      Textool_Validate();
      return TRUE;
    }
  }
  return FALSE;
}

extern "C" void QERPlug_Dispatch(const char* p, vec3_t vMin, vec3_t vMax, bool bSingleBrush)
{
  #if 0
  // if it's the first call, perhaps we need some additional init steps
  if (!g_bQglInitDone)
  {
    g_QglTable.m_nSize = sizeof(OpenGLBinding);
    if ( g_FuncTable.m_pfnRequestInterface( QERQglTable_GUID, static_cast<LPVOID>(&g_QglTable) ) )
    {
      g_bQglInitDone = true;
    }
    else
    {
      Sys_Printf("TexTool plugin: OpenGLBinding interface request failed\n");
      return;
    }
  }

  if (!g_bSelectedFaceInitDone)
  {
    g_SelectedFaceTable.m_nSize = sizeof(_QERSelectedFaceTable);
    if (g_FuncTable.m_pfnRequestInterface (QERSelectedFaceTable_GUID,
					   static_cast<LPVOID>(&g_SelectedFaceTable)))
    {
      g_bSelectedFaceInitDone = true;
    }
    else
    {
      Sys_Printf("TexTool plugin: _QERSelectedFaceTable interface request failed\n");
      return;
    }
  }

  if (!g_bSurfaceTableInitDone)
  {
    g_SurfaceTable.m_nSize = sizeof(_QERAppSurfaceTable);
    if ( g_FuncTable.m_pfnRequestInterface( QERAppSurfaceTable_GUID, static_cast<LPVOID>(&g_SurfaceTable) ) )
    {
      g_bSurfaceTableInitDone = true;
    }
    else
    {
      Sys_Printf("TexTool plugin: _QERAppSurfaceTable interface request failed\n");
      return;
    }
  }

  if (!g_bUITable)
  {
    g_UITable.m_nSize = sizeof(_QERUITable);
    if ( g_FuncTable.m_pfnRequestInterface( QERUI_GUID, static_cast<LPVOID>(&g_UITable) ) )
    {
      g_bUITable = true;
    }
    else
    {
      Sys_Printf("TexTool plugin: _QERUITable interface request failed\n");
      return;
    }
  }
  #endif

  if (!strcmp(p, "About..."))
  {
    DoMessageBox (PLUGIN_ABOUT, "About ...", MB_OK );
  }
  else if (!strcmp(p, "Go..."))
  {
    if (!g_pToolWnd)
    {
      g_pToolWnd = g_UITable.m_pfnCreateGLWindow();
      g_pToolWnd->setSizeParm(300,300);
      g_pToolWnd->setName("TexTool");
      // g_Listener is a static class, we need to bump the refCount to avoid premature release problems
      g_Listen.IncRef();
      // setListener will incRef on the listener too
      g_pToolWnd->setListener(&g_Listen);
      if (!g_pToolWnd->Show())
      {
        DoMessageBox ("Error creating texture tools window!", "TexTool plugin", MB_ICONERROR | MB_OK);
        return;
      }
    }
    
    g_bTexViewReady = false;
    g_bClosing = false;
  }
  else if (!strcmp(p, "Help..."))
  {
    if (!g_bHelp)
      DoMessageBox ("Select a brush face (ctrl+shift+left mouse) or a patch, and hit Go...\n"
		    "See tutorials for more", "TexTool plugin", MB_OK );
    else
      DoMessageBox ("Are you kidding me ?", "TexTool plugin", MB_OK );
    g_bHelp = true;
  }
}

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

CSynapseServer* g_pSynapseServer = NULL;
CSynapseClientTexTool g_SynapseClient;

extern "C" CSynapseClient* SYNAPSE_DLL_EXPORT Synapse_EnumerateInterfaces (const char *version, CSynapseServer *pServer)
{
  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(PLUGIN_MAJOR, "textool", sizeof(_QERPluginTable));  
  g_SynapseClient.AddAPI(RADIANT_MAJOR, NULL, sizeof(g_FuncTable), SYN_REQUIRE, &g_FuncTable);
  g_SynapseClient.AddAPI(QGL_MAJOR, NULL, sizeof(g_QglTable), SYN_REQUIRE, &g_QglTable);
  g_SynapseClient.AddAPI(SELECTEDFACE_MAJOR, NULL, sizeof(g_SelectedFaceTable), SYN_REQUIRE, &g_SelectedFaceTable);
  
  return &g_SynapseClient;
}

bool CSynapseClientTexTool::RequestAPI(APIDescriptor_t *pAPI)
{
  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* CSynapseClientTexTool::GetInfo()
{
  return "Texture Tools plugin built " __DATE__ " " RADIANT_VERSION;
}