# The GIMP -- an image manipulation program
# Copyright (C) 1995 Spencer Kimball and Peter Mattis

# 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.

# "Perlized" from C source by Manish Singh <yosh@gimp.org>

sub pdb_misc {
    $author = $copyright = 'Andy Thomas';
    $date = '1998';
}

sub brush_args {(
    { name => 'opacity', type => 'float',
      desc => 'The initial opacity of the brush' },
    { name => 'spacing', type => 'int32',
      desc => 'The initial spacing of the brush (if < 0 then use brush default
	       spacing)' },
    { name => 'paint_mode', type => 'enum LayerModeEffects',
      desc => 'The initial paint mode: { %%desc%% }'  }
)}

sub brushes_popup {
    $blurb = 'Invokes the Gimp brush selection.';

    $help = 'This procedure popups the brush selection dialog.';

    &pdb_misc;

    @inargs = (
	{ name => 'brush_callback', type => 'string', alias => 'name',
	  desc => 'The callback PDB proc to call when brush selection is
		   made' },
	{ name => 'popup_title', type => 'string', alias => 'title',
	  desc => 'Title to give the brush popup window' },
	{ name => 'initial_brush', type => 'string', alias => 'brush',
	  desc => 'The name of the brush to set as the first selected',
	  no_success => 1 },
	&brush_args
    );

    %invoke = (
	vars => [ 'ProcRecord *prec', 'BrushSelect *newdialog' ],
	code => <<'CODE'
{
  if ((prec = procedural_db_lookup (gimp, name)))
    {
      if (brush && strlen (brush))
	newdialog = brush_select_new (title, brush, opacity, spacing,
				      paint_mode);
      else
	newdialog = brush_select_new (title, NULL, 0.0, 0, 0);

      /* The callback procedure to run when brush changes */
      newdialog->callback_name = g_strdup (name);
    }
  else
    success = FALSE;
}
CODE
    );
}

sub brushes_close_popup {
    $blurb = 'Popdown the Gimp brush selection.';

    $help = 'This procedure closes an opened brush selection dialog.';

    &pdb_misc;

    @inargs = (
	{ name => 'brush_callback', type => 'string', alias => 'name',
	  desc => 'The name of the callback registered for this popup' }
    );

    %invoke = (
	vars => [ 'ProcRecord *prec', 'BrushSelect *bsp' ],
	code => <<'CODE'
{
  if ((prec = procedural_db_lookup (gimp, name)) &&
      (bsp = brush_get_brushselect (name)))
    {
      if (GTK_WIDGET_VISIBLE (bsp->shell))
	gtk_widget_hide (bsp->shell);

      /* Free memory if poping down dialog which is not the main one */
      if (bsp != brush_select_dialog)
	{
	  gtk_widget_destroy (bsp->shell);
	  brush_select_free (bsp);
	}
    }
  else
    success = FALSE;
}
CODE
    );
}

sub brushes_set_popup {
    $blurb = 'Sets the current brush selection in a popup.';

    $help = $blurb;

    &pdb_misc;

    @inargs = (
	{ name => 'brush_callback', type => 'string', alias => 'name',
	  desc => 'The name of the callback registered for this popup' },
	{ name => 'brush_name', type => 'string',
	  desc => 'The name of the brush to set as selected' },
	&brush_args
    );

    %invoke = (
	headers => [ qw("core/gimpbrush.h" "core/gimplist.h"
	                "widgets/widgets-types.h"
                        "widgets/gimpbrushfactoryview.h") ],
	vars => [ 'ProcRecord *prec', 'BrushSelect *bsp' ],
	code => <<'CODE'
{
  if ((prec = procedural_db_lookup (gimp, name)) &&
      (bsp = brush_get_brushselect (name)))
    {
      GimpObject *object =
        gimp_container_get_child_by_name (gimp->brush_factory->container,
					  brush_name);

      if (object)
	{
	  GimpBrush     *active = GIMP_BRUSH (object);
	  GtkAdjustment *spacing_adj;

          spacing_adj = GIMP_BRUSH_FACTORY_VIEW (bsp->view)->spacing_adjustment;

	  /* Updating the context updates the widgets as well */

	  gimp_context_set_brush (bsp->context, active);
	  gimp_context_set_opacity (bsp->context, opacity);
	  gimp_context_set_paint_mode (bsp->context, paint_mode);

	  gtk_adjustment_set_value (spacing_adj, spacing);
	}
      else
	success = FALSE;
    }
  else
    success = FALSE;
}
CODE
    );
}

@headers = qw(<string.h> "core/gimp.h" "core/gimpcontext.h"
	      "core/gimpdatafactory.h" "gui/brush-select.h");

$extra{app}->{code} = <<'CODE';
static BrushSelect *
brush_get_brushselect (gchar *name)
{
  GSList *list;
  BrushSelect *bsp;

  for (list = brush_active_dialogs; list; list = g_slist_next (list))
    {
      bsp = (BrushSelect *) list->data;

      if (bsp->callback_name && !strcmp (name, bsp->callback_name))
	return bsp;
    }

  return NULL;
}
CODE

@procs = qw(brushes_popup brushes_close_popup brushes_set_popup);
%exports = (app => [@procs], lib => [@procs]);

$desc = 'Brush UI';

1;
