示例#1
0
static gint
plug_in_collect_display_args (GtkAction       *action,
                              GimpDisplay     *display,
                              GParamSpec     **pspecs,
                              GimpValueArray  *args,
                              gint             n_args)
{
  if (gimp_value_array_length (args) > n_args &&
      GIMP_IS_PARAM_SPEC_DISPLAY_ID (pspecs[n_args]))
    {
      if (display)
        {
          gimp_value_set_display (gimp_value_array_index (args, n_args),
                                  GIMP_OBJECT (display));
          n_args++;
        }
      else
        {
          g_warning ("Uh-oh, no active display for the plug-in!");
          return -1;
        }
    }

  if (gimp_value_array_length (args) > n_args &&
      GIMP_IS_PARAM_SPEC_IMAGE_ID (pspecs[n_args]))
    {
      GimpImage *image = display ? gimp_display_get_image (display) : NULL;

      if (image)
        {
          gimp_value_set_image (gimp_value_array_index (args, n_args),
                                image);
          n_args++;

          if (gimp_value_array_length (args) > n_args &&
              GIMP_IS_PARAM_SPEC_DRAWABLE_ID (pspecs[n_args]))
            {
              GimpDrawable *drawable = gimp_image_get_active_drawable (image);

              if (drawable)
                {
                  gimp_value_set_drawable (gimp_value_array_index (args, n_args),
                                           drawable);
                  n_args++;
                }
              else
                {
                  g_warning ("Uh-oh, no active drawable for the plug-in!");
                  return -1;
                }
            }
        }
    }

  return n_args;
}
示例#2
0
static GimpValueArray *
flip_invoker (GimpProcedure         *procedure,
              Gimp                  *gimp,
              GimpContext           *context,
              GimpProgress          *progress,
              const GimpValueArray  *args,
              GError               **error)
{
  gboolean success = TRUE;
  GimpValueArray *return_vals;
  GimpDrawable *drawable;
  gint32 flip_type;

  drawable = gimp_value_get_drawable (gimp_value_array_index (args, 0), gimp);
  flip_type = g_value_get_enum (gimp_value_array_index (args, 1));

  if (success)
    {
      gint x, y, width, height;

      success = gimp_pdb_item_is_attached (GIMP_ITEM (drawable), NULL, TRUE, error);

      if (success &&
          gimp_item_mask_intersect (GIMP_ITEM (drawable), &x, &y, &width, &height))
        {
          gdouble axis;

          gimp_transform_get_flip_axis (x, y, width, height,
                                        flip_type, TRUE, &axis);

          if (! gimp_viewable_get_children (GIMP_VIEWABLE (drawable)) &&
              ! gimp_channel_is_empty (gimp_image_get_mask (gimp_item_get_image (GIMP_ITEM (drawable)))))
            {
              if (! gimp_drawable_transform_flip (drawable, context,
                                                  flip_type, axis, FALSE))
                {
                  success = FALSE;
                }
            }
          else
            {
              gimp_item_flip (GIMP_ITEM (drawable), context,
                              flip_type, axis, FALSE);
            }
        }
    }

  return_vals = gimp_procedure_get_return_values (procedure, success,
                                                  error ? *error : NULL);

  if (success)
    gimp_value_set_drawable (gimp_value_array_index (return_vals, 1), drawable);

  return return_vals;
}
GimpValueArray *
procedure_commands_get_display_args (GimpProcedure *procedure,
                                     GimpDisplay   *display)
{
  GimpValueArray *args;
  gint            n_args = 0;

  args = gimp_procedure_get_arguments (procedure);

  /* initialize the first argument  */
  g_value_set_int (gimp_value_array_index (args, n_args),
                   GIMP_RUN_INTERACTIVE);
  n_args++;

  if (gimp_value_array_length (args) > n_args &&
      GIMP_IS_PARAM_SPEC_DISPLAY_ID (procedure->args[n_args]))
    {
      if (display)
        {
          gimp_value_set_display (gimp_value_array_index (args, n_args),
                                  GIMP_OBJECT (display));
          n_args++;
        }
      else
        {
          g_warning ("Uh-oh, no active display for the plug-in!");
          gimp_value_array_unref (args);
          return NULL;
        }
    }

  if (gimp_value_array_length (args) > n_args &&
      GIMP_IS_PARAM_SPEC_IMAGE_ID (procedure->args[n_args]))
    {
      GimpImage *image = display ? gimp_display_get_image (display) : NULL;

      if (image)
        {
          gimp_value_set_image (gimp_value_array_index (args, n_args),
                                image);
          n_args++;

          if (gimp_value_array_length (args) > n_args &&
              GIMP_IS_PARAM_SPEC_DRAWABLE_ID (procedure->args[n_args]))
            {
              GimpDrawable *drawable = gimp_image_get_active_drawable (image);

              if (drawable)
                {
                  gimp_value_set_drawable (gimp_value_array_index (args, n_args),
                                           drawable);
                  n_args++;
                }
              else
                {
                  g_warning ("Uh-oh, no active drawable for the plug-in!");
                  gimp_value_array_unref (args);
                  return NULL;
                }
            }
        }
    }

  gimp_value_array_truncate (args, n_args);

  return args;
}
示例#4
0
static GimpValueArray *
transform_2d_invoker (GimpProcedure         *procedure,
                      Gimp                  *gimp,
                      GimpContext           *context,
                      GimpProgress          *progress,
                      const GimpValueArray  *args,
                      GError               **error)
{
  gboolean success = TRUE;
  GimpValueArray *return_vals;
  GimpDrawable *drawable;
  gboolean interpolation;
  gdouble source_x;
  gdouble source_y;
  gdouble scale_x;
  gdouble scale_y;
  gdouble angle;
  gdouble dest_x;
  gdouble dest_y;

  drawable = gimp_value_get_drawable (gimp_value_array_index (args, 0), gimp);
  interpolation = g_value_get_boolean (gimp_value_array_index (args, 1));
  source_x = g_value_get_double (gimp_value_array_index (args, 2));
  source_y = g_value_get_double (gimp_value_array_index (args, 3));
  scale_x = g_value_get_double (gimp_value_array_index (args, 4));
  scale_y = g_value_get_double (gimp_value_array_index (args, 5));
  angle = g_value_get_double (gimp_value_array_index (args, 6));
  dest_x = g_value_get_double (gimp_value_array_index (args, 7));
  dest_y = g_value_get_double (gimp_value_array_index (args, 8));

  if (success)
    {
      gint x, y, width, height;

      success = gimp_pdb_item_is_attached (GIMP_ITEM (drawable), NULL, TRUE, error);

      if (success &&
          gimp_item_mask_intersect (GIMP_ITEM (drawable), &x, &y, &width, &height))
        {
          GimpMatrix3           matrix;
          GimpInterpolationType interpolation_type = GIMP_INTERPOLATION_NONE;

          /* Assemble the transformation matrix */
          gimp_matrix3_identity  (&matrix);
          gimp_matrix3_translate (&matrix, -source_x, -source_y);
          gimp_matrix3_scale     (&matrix, scale_x, scale_y);
          gimp_matrix3_rotate    (&matrix, angle);
          gimp_matrix3_translate (&matrix, dest_x, dest_y);

          if (interpolation)
            interpolation_type = gimp->config->interpolation_type;

          if (progress)
            gimp_progress_start (progress, _("2D Transform"), FALSE);

          if (! gimp_viewable_get_children (GIMP_VIEWABLE (drawable)) &&
              ! gimp_channel_is_empty (gimp_image_get_mask (gimp_item_get_image (GIMP_ITEM (drawable)))))
            {
              if (! gimp_drawable_transform_affine (drawable, context,
                                                    &matrix, GIMP_TRANSFORM_FORWARD,
                                                    interpolation_type, 3,
                                                    FALSE, progress))
                {
                  success = FALSE;
                }
            }
          else
            {
              gimp_item_transform (GIMP_ITEM (drawable), context, &matrix,
                                   GIMP_TRANSFORM_FORWARD,
                                   interpolation, 3,
                                   FALSE, progress);
            }

          if (progress)
            gimp_progress_end (progress);
        }
    }

  return_vals = gimp_procedure_get_return_values (procedure, success,
                                                  error ? *error : NULL);

  if (success)
    gimp_value_set_drawable (gimp_value_array_index (return_vals, 1), drawable);

  return return_vals;
}
示例#5
0
static GimpValueArray *
shear_invoker (GimpProcedure         *procedure,
               Gimp                  *gimp,
               GimpContext           *context,
               GimpProgress          *progress,
               const GimpValueArray  *args,
               GError               **error)
{
  gboolean success = TRUE;
  GimpValueArray *return_vals;
  GimpDrawable *drawable;
  gboolean interpolation;
  gint32 shear_type;
  gdouble magnitude;

  drawable = gimp_value_get_drawable (gimp_value_array_index (args, 0), gimp);
  interpolation = g_value_get_boolean (gimp_value_array_index (args, 1));
  shear_type = g_value_get_enum (gimp_value_array_index (args, 2));
  magnitude = g_value_get_double (gimp_value_array_index (args, 3));

  if (success)
    {
      gint x, y, width, height;

      success = gimp_pdb_item_is_attached (GIMP_ITEM (drawable), NULL, TRUE, error);

      if (success &&
          gimp_item_mask_intersect (GIMP_ITEM (drawable), &x, &y, &width, &height))
        {
          GimpMatrix3           matrix;
          GimpInterpolationType interpolation_type = GIMP_INTERPOLATION_NONE;
          gint                  off_x, off_y;

          gimp_item_get_offset (GIMP_ITEM (drawable), &off_x, &off_y);

          x += off_x;
          y += off_y;

          /* Assemble the transformation matrix */
          gimp_matrix3_identity (&matrix);
          gimp_transform_matrix_shear (&matrix,
                                       x, y, width, height,
                                       shear_type, magnitude);

          if (interpolation)
            interpolation_type = gimp->config->interpolation_type;

          if (progress)
            gimp_progress_start (progress, _("Shearing"), FALSE);

          if (! gimp_viewable_get_children (GIMP_VIEWABLE (drawable)) &&
              ! gimp_channel_is_empty (gimp_image_get_mask (gimp_item_get_image (GIMP_ITEM (drawable)))))
            {
              if (! gimp_drawable_transform_affine (drawable, context,
                                                    &matrix,
                                                    GIMP_TRANSFORM_FORWARD,
                                                    interpolation_type, 3,
                                                    FALSE, progress))
                {
                  success = FALSE;
                }
            }
          else
            {
              gimp_item_transform (GIMP_ITEM (drawable), context, &matrix,
                                   GIMP_TRANSFORM_FORWARD,
                                   interpolation, 3,
                                   FALSE, progress);
            }

          if (progress)
            gimp_progress_end (progress);
        }
    }

  return_vals = gimp_procedure_get_return_values (procedure, success,
                                                  error ? *error : NULL);

  if (success)
    gimp_value_set_drawable (gimp_value_array_index (return_vals, 1), drawable);

  return return_vals;
}