Gimp/plug-ins/MapObject/mapobject_main.c

/* MapObject 1.2.0 -- image filter plug-in for The Gimp program
 *
 * Copyright (C) 1996-98 Tom Bech
 * Copyright (C) 1996-98 Federico Mena Quintero
 *
 * E-mail: tomb@gimp.org (Tom) or quartic@gimp.org (Federico)
 *
 * This program 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.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include "config.h"

#include <gtk/gtk.h>

#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>

#include <gck/gck.h>

#include "arcball.h"
#include "mapobject_ui.h"
#include "mapobject_image.h"
#include "mapobject_apply.h"
#include "mapobject_preview.h"
#include "mapobject_main.h"

#include "libgimp/stdplugins-intl.h"


/* Global variables */
/* ================ */

MapObjectValues mapvals;

/******************/
/* Implementation */
/******************/

/*************************************/
/* Set parameters to standard values */
/*************************************/

static void
set_default_settings (void)
{
  gint i;

  gimp_vector3_set (&mapvals.viewpoint,  0.5, 0.5, 2.0);
  gimp_vector3_set (&mapvals.firstaxis,  1.0, 0.0, 0.0);
  gimp_vector3_set (&mapvals.secondaxis, 0.0, 1.0, 0.0);
  gimp_vector3_set (&mapvals.normal,     0.0, 0.0, 1.0);
  gimp_vector3_set (&mapvals.position,   0.5, 0.5, 0.0);
  gimp_vector3_set (&mapvals.lightsource.position,  -0.5, -0.5, 2.0);
  gimp_vector3_set (&mapvals.lightsource.direction, -1.0, -1.0, 1.0);
  gimp_vector3_set (&mapvals.scale,      0.5, 0.5, 0.5);

  mapvals.maptype = MAP_PLANE;

  mapvals.pixeltreshold   = 0.25;
  mapvals.alpha           = 0.0;
  mapvals.beta            = 0.0;
  mapvals.gamma           = 0.0;
  mapvals.maxdepth        = 3.0;
  mapvals.radius          = 0.25;
  mapvals.cylinder_radius = 0.25;
  mapvals.cylinder_length = 1.0;

  mapvals.preview_zoom_factor = 0;

  mapvals.lightsource.type = POINT_LIGHT;

  mapvals.antialiasing           = TRUE;
  mapvals.create_new_image       = FALSE;
  mapvals.transparent_background = FALSE;
  mapvals.tiled                  = FALSE;
  mapvals.showgrid               = FALSE;

  mapvals.lightsource.intensity = 1.0;
  gimp_rgba_set (&mapvals.lightsource.color, 1.0, 1.0, 1.0, 1.0);

  mapvals.material.ambient_int  = 0.3;
  mapvals.material.diffuse_int  = 1.0;
  mapvals.material.diffuse_ref  = 0.5;
  mapvals.material.specular_ref = 0.5;
  mapvals.material.highlight    = 27.0;
  
  for (i = 0; i < 6; i++)
    mapvals.boxmap_id[i] = -1;

  for (i = 0; i < 2; i++)
    mapvals.cylindermap_id[i] = -1;
}

static void
check_drawables (GimpDrawable *drawable)
{
  gint i;

  /* Check that boxmap images are valid */
  /* ================================== */

  for (i = 0; i < 6; i++)
    {
      if (mapvals.boxmap_id[i] == -1)
        mapvals.boxmap_id[i] = drawable->drawable_id;
      else if (mapvals.boxmap_id[i] != -1 &&
	       gimp_drawable_image_id (mapvals.boxmap_id[i]) == -1)
        mapvals.boxmap_id[i] = drawable->drawable_id;
      else if (gimp_drawable_is_gray (mapvals.boxmap_id[i]))
        mapvals.boxmap_id[i] = drawable->drawable_id;
    }

  /* Check that cylindermap images are valid */
  /* ======================================= */

  for (i = 0; i < 2; i++)
    {
      if (mapvals.cylindermap_id[i] == -1)
        mapvals.cylindermap_id[i] = drawable->drawable_id;
      else if (mapvals.cylindermap_id[i]!=-1 && 
               gimp_drawable_image_id (mapvals.cylindermap_id[i]) == -1)
        mapvals.cylindermap_id[i] = drawable->drawable_id;
      else if (gimp_drawable_is_gray (mapvals.cylindermap_id[i]))
        mapvals.cylindermap_id[i] = drawable->drawable_id;
    }
}

static void
query (void)
{
  static GimpParamDef args[] =
  {
    { GIMP_PDB_INT32,    "run_mode",              "Interactive (0), non-interactive (1)" },
    { GIMP_PDB_IMAGE,    "image",                 "Input image" },
    { GIMP_PDB_DRAWABLE, "drawable",              "Input drawable" },
    { GIMP_PDB_INT32,    "maptype",               "Type of mapping (0=plane,1=sphere,2=box,3=cylinder)" },
    { GIMP_PDB_FLOAT,    "viewpoint_x",           "Position of viewpoint (x,y,z)" },
    { GIMP_PDB_FLOAT,    "viewpoint_y",           "Position of viewpoint (x,y,z)" },
    { GIMP_PDB_FLOAT,    "viewpoint_z",           "Position of viewpoint (x,y,z)" },
    { GIMP_PDB_FLOAT,    "position_x",            "Object position (x,y,z)" },
    { GIMP_PDB_FLOAT,    "position_y",            "Object position (x,y,z)" },
    { GIMP_PDB_FLOAT,    "position_z",            "Object position (x,y,z)" },
    { GIMP_PDB_FLOAT,    "firstaxis_x",           "First axis of object [x,y,z]" },
    { GIMP_PDB_FLOAT,    "firstaxis_y",           "First axis of object [x,y,z]" },
    { GIMP_PDB_FLOAT,    "firstaxis_z",           "First axis of object [x,y,z]" },
    { GIMP_PDB_FLOAT,    "secondaxis_x",          "Second axis of object [x,y,z]" },
    { GIMP_PDB_FLOAT,    "secondaxis_y",          "Second axis of object [x,y,z]" },
    { GIMP_PDB_FLOAT,    "secondaxis_z",          "Second axis of object [x,y,z]" },
    { GIMP_PDB_FLOAT,    "rotationangle_x",       "Rotation about X axis in degrees" },
    { GIMP_PDB_FLOAT,    "rotationangle_y",       "Rotation about Y axis in degrees" },
    { GIMP_PDB_FLOAT,    "rotationangle_z",       "Rotation about Z axis in degrees" },
    { GIMP_PDB_INT32,    "lighttype",             "Type of lightsource (0=point,1=directional,3=none)" },
    { GIMP_PDB_COLOR,    "lightcolor",            "Lightsource color (r,g,b)" },
    { GIMP_PDB_FLOAT,    "lightposition_x",       "Lightsource position (x,y,z)" },
    { GIMP_PDB_FLOAT,    "lightposition_y",       "Lightsource position (x,y,z)" },
    { GIMP_PDB_FLOAT,    "lightposition_z",       "Lightsource position (x,y,z)" },
    { GIMP_PDB_FLOAT,    "lightdirection_x",      "Lightsource direction [x,y,z]" },
    { GIMP_PDB_FLOAT,    "lightdirection_y",      "Lightsource direction [x,y,z]" },
    { GIMP_PDB_FLOAT,    "lightdirection_z",      "Lightsource direction [x,y,z]" },
    { GIMP_PDB_FLOAT,    "ambient_intensity",     "Material ambient intensity (0..1)" },
    { GIMP_PDB_FLOAT,    "diffuse_intensity",     "Material diffuse intensity (0..1)" },
    { GIMP_PDB_FLOAT,    "diffuse_reflectivity",  "Material diffuse reflectivity (0..1)" },
    { GIMP_PDB_FLOAT,    "specular_reflectivity", "Material specular reflectivity (0..1)" },
    { GIMP_PDB_FLOAT,    "highlight",             "Material highlight (0..->), note: it's expotential" },
    { GIMP_PDB_INT32,    "antialiasing",          "Apply antialiasing (TRUE/FALSE)" },
    { GIMP_PDB_INT32,    "tiled",                 "Tile source image (TRUE/FALSE)" },
    { GIMP_PDB_INT32,    "newimage",              "Create a new image (TRUE/FALSE)" },
    { GIMP_PDB_INT32,    "transparentbackground", "Make background transparent (TRUE/FALSE)" },
    { GIMP_PDB_FLOAT,    "radius",                "Sphere/cylinder radius (only used when maptype=1 or 3)" },
    { GIMP_PDB_FLOAT,    "x_scale",               "Box x size (0..->)" },
    { GIMP_PDB_FLOAT,    "y_scale",               "Box y size (0..->)" },
    { GIMP_PDB_FLOAT,    "z_scale",               "Box z size (0..->)"},
    { GIMP_PDB_FLOAT,    "cylinder_length",       "Cylinder length (0..->)"},
    { GIMP_PDB_DRAWABLE, "box_front_drawable",    "Box front face (set these to -1 if not used)" },
    { GIMP_PDB_DRAWABLE, "box_back_drawable",     "Box back face" },
    { GIMP_PDB_DRAWABLE, "box_top_drawable",      "Box top face" },
    { GIMP_PDB_DRAWABLE, "box_bottom_drawable",   "Box bottom face" },
    { GIMP_PDB_DRAWABLE, "box_left_drawable",     "Box left face" },
    { GIMP_PDB_DRAWABLE, "box_right_drawable",    "Box right face" },
    { GIMP_PDB_DRAWABLE, "cyl_top_drawable",      "Cylinder top face (set these to -1 if not used)" },
    { GIMP_PDB_DRAWABLE, "cyl_bottom_drawable",   "Cylinder bottom face" }      
  };

  gimp_install_procedure ("plug_in_map_object",
			  "Maps a picture to a object (plane, sphere, box or cylinder)",
			  "No help yet",
			  "Tom Bech & Federico Mena Quintero",
			  "Tom Bech & Federico Mena Quintero",
			  "Version 1.2.0, July 16 1998",
			  N_("<Image>/Filters/Map/Map Object..."),
			  "RGB*",
			  GIMP_PLUGIN,
			  G_N_ELEMENTS (args), 0,
			  args, NULL);
}

static void
run (gchar      *name,
     gint        nparams,
     GimpParam  *param,
     gint       *nreturn_vals,
     GimpParam **return_vals)
{
  static GimpParam   values[1];
  GimpDrawable      *drawable;
  GimpRunMode    run_mode;
  GimpPDBStatusType  status = GIMP_PDB_SUCCESS;
  gint               i;

  run_mode = param[0].data.d_int32;

  if (run_mode == GIMP_RUN_INTERACTIVE)
    {
      INIT_I18N_UI ();
    }
  else
    {
      INIT_I18N ();
    }

  values[0].type = GIMP_PDB_STATUS;
  values[0].data.d_status = status;

  *nreturn_vals = 1;
  *return_vals = values;

  /* Set default values */
  /* ================== */

  set_default_settings ();

  /* Get the specified drawable */
  /* ========================== */

  drawable = gimp_drawable_get (param[2].data.d_drawable);

  switch (run_mode)
    {
      case GIMP_RUN_INTERACTIVE:
        
        /* Possibly retrieve data */
        /* ====================== */
    
        gimp_get_data ("plug_in_map_object", &mapvals);
        check_drawables (drawable);
        if (main_dialog (drawable))
	  {
	    compute_image ();

	    gimp_set_data ("plug_in_map_object",
			   &mapvals, sizeof (MapObjectValues));
	  }
        break;

      case GIMP_RUN_WITH_LAST_VALS:
        gimp_get_data ("plug_in_map_object", &mapvals);
        check_drawables (drawable);
        image_setup (drawable, FALSE);
        compute_image ();
        break;

      case GIMP_RUN_NONINTERACTIVE:
        if (nparams != 49)
	  {
	    status = GIMP_PDB_CALLING_ERROR;
	  }
        else
          {
            mapvals.maptype                 = (MapType) param[3].data.d_int32;
            mapvals.viewpoint.x             = param[4].data.d_float;
            mapvals.viewpoint.y             = param[5].data.d_float;
            mapvals.viewpoint.z             = param[6].data.d_float;
            mapvals.position.x              = param[7].data.d_float;
            mapvals.position.y              = param[8].data.d_float;
            mapvals.position.z              = param[9].data.d_float;
            mapvals.firstaxis.x             = param[10].data.d_float;
            mapvals.firstaxis.y             = param[11].data.d_float;
            mapvals.firstaxis.z             = param[12].data.d_float;
            mapvals.secondaxis.x            = param[13].data.d_float;
            mapvals.secondaxis.y            = param[14].data.d_float;
            mapvals.secondaxis.z            = param[15].data.d_float;
            mapvals.alpha                   = param[16].data.d_float;
            mapvals.beta                    = param[17].data.d_float;
            mapvals.gamma                   = param[18].data.d_float;
            mapvals.lightsource.type        = (LightType) param[19].data.d_int32;
	    mapvals.lightsource.color       = param[20].data.d_color;
            mapvals.lightsource.position.x  = param[21].data.d_float;
            mapvals.lightsource.position.y  = param[22].data.d_float;
            mapvals.lightsource.position.z  = param[23].data.d_float;
            mapvals.lightsource.direction.x = param[24].data.d_float;
            mapvals.lightsource.direction.y = param[25].data.d_float;
            mapvals.lightsource.direction.z = param[26].data.d_float;
            mapvals.material.ambient_int    = param[27].data.d_float;
            mapvals.material.diffuse_int    = param[28].data.d_float;
            mapvals.material.diffuse_ref    = param[29].data.d_float;
            mapvals.material.specular_ref   = param[30].data.d_float;
            mapvals.material.highlight      = param[31].data.d_float;
            mapvals.antialiasing            = (gint) param[32].data.d_int32;
            mapvals.tiled                   = (gint) param[33].data.d_int32;
            mapvals.create_new_image        = (gint) param[34].data.d_int32;
            mapvals.transparent_background  = (gint) param[35].data.d_int32;
            mapvals.radius                  = param[36].data.d_float;
            mapvals.cylinder_radius         = param[36].data.d_float;
            mapvals.scale.x                 = param[37].data.d_float;
            mapvals.scale.y                 = param[38].data.d_float;
            mapvals.scale.z                 = param[39].data.d_float;
            mapvals.cylinder_length         = param[40].data.d_float;

            for (i = 0; i < 6; i++)
              mapvals.boxmap_id[i] =
		gimp_drawable_get (param[41+i].data.d_drawable)->drawable_id;

            for (i = 0; i < 2; i++)
              mapvals.cylindermap_id[i] =
		gimp_drawable_get (param[47+i].data.d_drawable)->drawable_id;

            check_drawables (drawable);
            image_setup (drawable, FALSE);
            compute_image ();
          }
        break;
    }

  values[0].data.d_status = status;
  
  if (run_mode != GIMP_RUN_NONINTERACTIVE)
    gimp_displays_flush ();

  gimp_drawable_detach (drawable);
}

GimpPlugInInfo PLUG_IN_INFO =
{
  NULL,  /* init_proc  */
  NULL,  /* quit_proc  */
  query, /* query_proc */
  run,   /* run_proc   */
};

MAIN ()