/*
GenSurf plugin for GtkRadiant
Copyright (C) 2001 David Hyde, Loki software and qeradiant.com

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library 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
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#include <gtk/gtk.h>
#include <stdio.h>
#include <stdlib.h>
/*
#include <string.h>
#include <tchar.h>
#include <math.h>
*/
#include "gensurf.h"

char      gszAppDir[NAME_MAX];
char      gszCaption[64];
char      gszIni[NAME_MAX];
char      gszHelpFile[NAME_MAX];
char      gszMapFile[NAME_MAX];
char      gszVersion[64];
double    Amplitude;
double    Roughness;
double    TexOffset[2];
double    TexScale[2];
double    WaveLength;
double    Hll, Hur, Vll, Vur;
double    Z00, Z01, Z10, Z11;
ELEMENT   Vertex[(MAX_ROWS+1)*(MAX_ROWS+1)];
int       AddHints;
int       ArghRad2;
int       AutoOverwrite;
int       Decimate=0;
int				SnapToGrid=0; // 0, or the grid size to snap to. // Hydra : snap to grid
int       FileAppend=0;
int       FixBorders;
int       HideBackFaces=0;
int       NH, NV;
int       NumVerticesSelected;
int       Plane;
int       Preview;
int       RandomSeed=1;
int       Skybox;
int       UseDetail;
int       UseLadder;
int       VertexMode=0;
int       WaveType;
int       gNumNodes=0;
int       gNumTris=0;
int       vid_x, vid_y;
int       view_x, view_y;
int       view_cx, view_cy;
int       UsePatches;
int       SlantAngle;
int       GimpHints;
int				Antialiasing; // ^Fishman - Antializing for the preview window.
int				AddTerrainKey; // ^Fishman - Add terrain key to func_group.
int				SP; // ^Fishman - Snap to grid.

GtkWidget *g_pWnd;        // ghwnd;
GtkWidget *g_pRadiantWnd; // ghwnd_main;
/*HWND      ghwndAngles;
*/GtkWidget *g_pWndPreview;
GtkWidget *g_pPreviewWidget;
MYBITMAP  gbmp;
NODE      *gNode=(NODE *)NULL;
TRI       *gTri=(TRI *)NULL;

int       Game;
bounding_box PlayerBox[NUMGAMES] = { {{-16., 16.}, {-16., 16.}, {-24., 32.}},    // Quake2
                                     {{-16., 16.}, {-16., 16.}, {-36., 36.}},    // Half-Life
                                     {{-16., 16.}, {-16., 16.}, {-32., 32.}},    // SiN
                                     {{-16., 16.}, {-16., 16.}, {-24., 32.}},    // Heretic2 (guess)
                                     {{-16., 16.}, {-16., 16.}, {-24., 32.}},    // KingPin (guess)
                                     {{-30., 30.}, {-30., 30.}, {-10.,160.}},	 // Genesis3D (no idea)
                                     {{-16., 16.}, {-16., 16.}, {-24., 32.}}};	 // Quake3 (not sure)
//char      gszOutputDir[NUMGAMES][NAME_MAX];
//char      gszTextureDir[NUMGAMES][NAME_MAX];
char      Texture[NUMGAMES][3][64];
//char      pakfile[NUMGAMES][NAME_MAX];
//char      lastpakfile[NUMGAMES][NAME_MAX];
//int       UsePak[NUMGAMES];
//char      GameDir[NUMGAMES][NAME_MAX];

char GameName[NUMGAMES][16] = {"Quake2", "Half-Life", "SiN", "Heretic2", "Kingpin", "Genesis3D", "Quake3" };


bool GenSurfInit ()
{
  strcpy (gszVersion, "1.05");
  strcpy (gszCaption, "GtkGenSurf");
  if (strlen (gszVersion))
  {
    strcat (gszCaption, " v");
    strcat (gszCaption, gszVersion);
  }

  strcpy (gszIni, g_FuncTable.m_pfnProfileGetDirectory ());
  strcat (gszIni, "gensurf.ini");

/*if (g_FuncTable.m_pfnReadProjectKey != NULL)
  {
    char *basepath;

    basepath = g_FuncTable.m_pfnReadProjectKey("basepath");
    if (basepath)
    {
      g_strdown (basepath);
      if (strstr(basepath,"baseq3"))
        Game = QUAKE3;
      else if (strstr (basepath,"baseq2"))
        Game = QUAKE2;
      else // Gotta have a game, might as well be Quake3
        Game = QUAKE3;
    }
    else
      Game = QUAKE3;
  }
  else */
    Game = QUAKE3;

  ReadIniFile (gszIni);

  if (g_pWnd == NULL)
    g_pWnd = create_main_dialog ();

  return true;
}

// Reads default values

#define OPTS_SECTION "Options"

void ReadIniFile (const char *file)
{
  char *Text;
  float x1,x2,x3,x4;
  int   i;

  Text = g_FuncTable.m_pfnProfileLoadString (file, OPTS_SECTION, "Amplitude", "");
  if (strlen (Text))
    Amplitude = atof (Text);
  else
    Amplitude = 128;

  Text = g_FuncTable.m_pfnProfileLoadString (file, OPTS_SECTION, "Roughness", "");
  if (strlen (Text))
    Roughness = atof (Text);
  else
    Roughness = 16;

  Text = g_FuncTable.m_pfnProfileLoadString (file, OPTS_SECTION, "WaveLength", "");
  if (strlen (Text))
    WaveLength = atof (Text);
  else
    WaveLength = 1024;

  Text = g_FuncTable.m_pfnProfileLoadString (file, OPTS_SECTION, "Extents", "");
  if (strlen (Text))
  {
    sscanf(Text,"%f,%f,%f,%f",&x1,&x2,&x3,&x4);
    Hll = x1;
    Vll = x2;
    Hur = x3;
    Vur = x4;
  }
  else
  {
    Hll = -512;
    Vll = -512;
    Hur =  512;
    Vur =  512;
  }

  Text = g_FuncTable.m_pfnProfileLoadString (file, OPTS_SECTION, "CornerValues", "");
  if (strlen (Text))
  {
    sscanf(Text,"%f,%f,%f,%f",&x1,&x2,&x3,&x4);
    Z00 = x1;
    Z01 = x2;
    Z10 = x3;
    Z11 = x4;
  }
  else
  {
    Z00 = 0.;
    Z01 = 0.;
    Z10 = 0.;
    Z11 = 0.;
  }

  Text = g_FuncTable.m_pfnProfileLoadString (file, OPTS_SECTION, "TextureOffset", "");
  if (strlen (Text))
  {
    sscanf(Text,"%f,%f",&x1,&x2);
    TexOffset[0] = x1;
    TexOffset[1] = x2;
  }
  else
  {
    TexOffset[0] = 0.;
    TexOffset[1] = 0.;
  }

  Text = g_FuncTable.m_pfnProfileLoadString (file, OPTS_SECTION,"TextureScale","");
  if (strlen (Text))
  {
    sscanf(Text,"%f,%f",&x1,&x2);
    TexScale[0] = x1;
    TexScale[1] = x2;
    if(TexScale[0] == 0.) TexScale[0] = 1.0;
    if(TexScale[1] == 0.) TexScale[1] = 1.0;
  }
  else
  {
    TexScale[0] = 1.;
    TexScale[1] = 1.;
  }

  NH = g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"NH",8);
  NH = max(1,min(NH,MAX_ROWS));
  NV = g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"NV",8);
  NV = max(1,min(NV,MAX_ROWS));

//	Decimate   = GetPrivateProfileInt(OPTS_SECTION,"Decimate",0,file);
//	Decimate = max(0,min(Decimate,100));

  AddHints			= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"AddHints",0);
  ArghRad2			= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"ArghRad2",0);
  AutoOverwrite	= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"AutoOverwrite",0);
  FixBorders		= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"FixBorders",1);
  HideBackFaces	= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"HideBackFaces",0);
  Plane					= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"Plane",0);
  Preview				= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"Preview", 0);
	Antialiasing	= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"Antialiasing",0); // ^Fishman - Antializing for the preview window.
  RandomSeed		= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"RandomSeed",1);
  Skybox				= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"Skybox",0);
  UseDetail			= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"UseDetail",0);
	AddTerrainKey	=	g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"AddTerrainKey",0); // ^Fishman - Add terrain key to func_group.
  UseLadder			= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"UseLadder",0);
  WaveType			= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"WaveType",0);
  vid_x					= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"vid_x", 0);
  vid_y					= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"vid_y", 0);
  view_x				= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"view_x",0);
  view_y				= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"view_y",0);
  view_cx				= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"view_cx",0);
  view_cy				= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"view_cy",0);

  UsePatches		= g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"UsePatches",0);

  SlantAngle = g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"SlantAngle",60);
  GimpHints  = g_FuncTable.m_pfnProfileLoadInt (file, OPTS_SECTION,"GimpHints",0);

  for(i=0; i<NUMGAMES; i++)
  {
    //    strcpy (gszOutputDir[i], g_FuncTable.m_pfnProfileLoadString (file, GameName[i],"OutputDir",""));
    strcpy (Texture[i][0], g_FuncTable.m_pfnProfileLoadString (file, GameName[i], "Texture", ""));
    strcpy (Texture[i][1], g_FuncTable.m_pfnProfileLoadString (file, GameName[i], "Texture2", ""));
    strcpy (Texture[i][2], g_FuncTable.m_pfnProfileLoadString (file, GameName[i], "Texture3", ""));
    //    strcpy (gszTextureDir[i], g_FuncTable.m_pfnProfileLoadString (file, GameName[i],"TextureDir",""));
    //    UsePak[i] = GetPrivateProfileInt(GameName[i],"UsePak",0);
    //    strcpy (pakfile[i], g_FuncTable.m_pfnProfileLoadString (file, GameName[i],"PakFile",""));
    //    strcpy (lastpakfile[i], g_FuncTable.m_pfnProfileLoadString (file, GameName[i],"LastPakFile",""));
    //    strcpy (GameDir[i], g_FuncTable.m_pfnProfileLoadString (file, GameName[i],"GameDir","\0"));
  }
  /*
	if(!strlen(gszTextureDir[QUAKE2]))
		strcpy(gszTextureDir[QUAKE2],"c:\\quake2\\baseq2\\textures\\");
	if(!strlen(gszTextureDir[KINGPIN]))
		strcpy(gszTextureDir[KINGPIN],"c:\\kingpin\\main\\textures\\");
  */
  if(!strlen(Texture[QUAKE2][0]))    strcpy(Texture[QUAKE2][0],   "textures/e1u1/grass1_4");
  if(!strlen(Texture[HALFLIFE][0]))  strcpy(Texture[HALFLIFE][0], "textures/OUT_GRND1");
  if(!strlen(Texture[SIN][0]))       strcpy(Texture[SIN][0],      "textures/generic/floor_organic/fl_grass");
  if(!strlen(Texture[HERETIC2][0]))  strcpy(Texture[HERETIC2][0], "textures/canyon/canyon05");
  if(!strlen(Texture[KINGPIN][0]))   strcpy(Texture[KINGPIN][0],  "textures/bricks/s_sr_m3");
  if(!strlen(Texture[GENESIS3D][0])) strcpy(Texture[GENESIS3D][0],"textures/rock13");
  if(!strlen(Texture[QUAKE3][0]))    strcpy(Texture[QUAKE3][0],   "textures/organics/grass3");
  if(!strlen(Texture[QUAKE3][1]))    strcpy(Texture[QUAKE3][1],   "textures/common/caulk");

  strcpy (gbmp.name, g_FuncTable.m_pfnProfileLoadString (file, "Bitmap","Filename",""));

  if (strlen(gbmp.name))
    OpenBitmap ();

  strcpy (gbmp.defpath, g_FuncTable.m_pfnProfileLoadString (file, "Bitmap","DefaultPath",""));

  Text = g_FuncTable.m_pfnProfileLoadString (file, "Bitmap","BlackValue","");
  if (strlen (Text))
    gbmp.black_value = atof (Text);
  else
    gbmp.black_value = 0;

  Text = g_FuncTable.m_pfnProfileLoadString (file, "Bitmap","WhiteValue","");
  if (strlen (Text))
    gbmp.white_value = atof (Text);
  else
    gbmp.white_value = 256.;
}

/*
============
va

does a varargs printf into a temp buffer, so I don't need to have
varargs versions of all text functions.
FIXME: make this buffer size safe someday
============
*/
char *va (char *format, ...)
{
  va_list argptr;
  static char string[1024];

  va_start (argptr, format);
  vsprintf (string, format,argptr);
  va_end (argptr);

  return string;	
}


// Writes current values to INI file
void WriteIniFile(const char *file)
{
  int i;

  g_FuncTable.m_pfnProfileSaveString (file, OPTS_SECTION, "Amplitude",    va("%g",Amplitude));
  g_FuncTable.m_pfnProfileSaveString (file, OPTS_SECTION, "Roughness",    va("%g",Roughness));
  g_FuncTable.m_pfnProfileSaveString (file, OPTS_SECTION, "WaveLength",   va("%g",WaveLength));
  g_FuncTable.m_pfnProfileSaveString (file, OPTS_SECTION, "Extents",      va("%g,%g,%g,%g",Hll,Vll,Hur,Vur));
  g_FuncTable.m_pfnProfileSaveString (file, OPTS_SECTION, "CornerValues", va("%g,%g,%g,%g",Z00,Z01,Z10,Z11));
  g_FuncTable.m_pfnProfileSaveString (file, OPTS_SECTION, "TextureOffset",va("%g,%g",TexOffset[0],TexOffset[1]));
  g_FuncTable.m_pfnProfileSaveString (file, OPTS_SECTION, "TextureScale", va("%g,%g",TexScale[0],TexScale[1]));
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "NH", NH);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "NV", NV);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "AddHints", AddHints);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "ArghRad2", ArghRad2);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "AutoOverwrite", AutoOverwrite);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "FixBorders", FixBorders);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "Plane", Plane);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "Preview", Preview);
	g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "Antialiasing", Antialiasing); // ^Fishman - Antializing for the preview window.
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "RandomSeed", RandomSeed);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "Skybox", Skybox);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "UseDetail", UseDetail);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "AddTerrainKey", AddTerrainKey); // ^Fishman - Add terrain key to func_group.
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "UseLadder", UseLadder);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "WaveType", WaveType);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "vid_x", vid_x);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "vid_y", vid_y);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "view_x", view_x);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "view_y", view_y);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "view_cx", view_cx);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "view_cy", view_cy);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "UsePatches", UsePatches);
  g_FuncTable.m_pfnProfileSaveInt (file, OPTS_SECTION, "SlantAngle", SlantAngle);
  for(i=0; i<NUMGAMES; i++)
  {
    g_FuncTable.m_pfnProfileSaveString (file, GameName[i], "Texture",   Texture[i][0] );
    g_FuncTable.m_pfnProfileSaveString (file, GameName[i], "Texture2",  Texture[i][1] );
    g_FuncTable.m_pfnProfileSaveString (file, GameName[i], "Texture3",  Texture[i][2] );
  }

  g_FuncTable.m_pfnProfileSaveString (file, "Bitmap", "Filename", gbmp.name );
  g_FuncTable.m_pfnProfileSaveString (file, "Bitmap", "DefaultPath", gbmp.defpath );
  g_FuncTable.m_pfnProfileSaveString (file, "Bitmap", "BlackValue", va("%g",gbmp.black_value));
  g_FuncTable.m_pfnProfileSaveString (file, "Bitmap", "WhiteValue", va("%g",gbmp.white_value));
//g_FuncTable.m_pfnProfileSaveString (file, "Formula", "Formula", ExcelFunc );
}

void UpdatePreview (bool DataChange)
{
  if (g_pWndPreview && GTK_WIDGET_VISIBLE (g_pWndPreview))
  {
    if (DataChange)
      GenerateXYZ ();

    gtk_widget_draw (g_pPreviewWidget, NULL);
  }
}

void SaveSetup (GtkWidget *parent)
{
  const char *name = g_FuncTable.m_pfnFileDialog (parent, false, "Save GenSurf Settings",
                                             g_FuncTable.m_pfnProfileGetDirectory ());

  if (name != NULL)
  {
    char key[32], text[32]; 
    int i, j;

    WriteIniFile (name);
    g_FuncTable.m_pfnProfileSaveString (name, OPTS_SECTION,"MapFile",gszMapFile);
    sprintf(text,"0x%04x",FileAppend);
    g_FuncTable.m_pfnProfileSaveString (name, OPTS_SECTION,"Append",text);
    sprintf(text,"0x%04x",Decimate);
    g_FuncTable.m_pfnProfileSaveString (name, OPTS_SECTION,"Decimate",text);
    for(i=0; i<=NH; i++)
    {
      for(j=0; j<=NV; j++)
      {
        if(xyz[i][j].fixed)
        {
          sprintf(key,"I%dJ%d",i,j);
          sprintf(text,"%g %g %g", xyz[i][j].fixed_value, xyz[i][j].range, xyz[i][j].rate);
          g_FuncTable.m_pfnProfileSaveString (name, "FixedPoints",key,text);
        }
      }
    }
  }
}

void OpenSetup (GtkWidget *parent, int UseDefaults)
{
  const char *name;
  char key[32], *text;
  float value,range,rate;
  int i, j;

  if (UseDefaults)
    name = g_strdup ("plugins/defaults.srf"); // dummy string
  else
    name = g_FuncTable.m_pfnFileDialog (parent, true, "Open GenSurf Settings",
                                        g_FuncTable.m_pfnProfileGetDirectory ());

  if(name != NULL)
  {
    ReadIniFile (name);
    Decimate   = g_FuncTable.m_pfnProfileLoadInt (name, OPTS_SECTION,"Decimate",0);
    Decimate   = max(0,min(Decimate,100));

    for (i=0; i<=NH; i++)
    {
      for (j=0; j<=NV; j++)
      {
        sprintf(key,"I%dJ%d",i,j);
        text = g_FuncTable.m_pfnProfileLoadString (name, "FixedPoints", key, "");
        if (strlen (text))
        {
          xyz[i][j].fixed = 1;
          xyz[i][j].rate        = 0.;
          sscanf(text,"%g %g %g",&value,&range,&rate);
          xyz[i][j].fixed_value = value;
          xyz[i][j].range       = range;
          xyz[i][j].rate        = rate;
        }
        else
          xyz[i][j].fixed = 0;
      }
    }
  }
}