static void
gimp_perspective_clone_tool_recalc_matrix (GimpPerspectiveCloneTool *clone_tool,
GimpToolWidget *widget)
{
gimp_matrix3_identity (&clone_tool->transform);
gimp_transform_matrix_perspective (&clone_tool->transform,
clone_tool->x1,
clone_tool->y1,
clone_tool->x2 - clone_tool->x1,
clone_tool->y2 - clone_tool->y1,
clone_tool->trans_info[X0],
clone_tool->trans_info[Y0],
clone_tool->trans_info[X1],
clone_tool->trans_info[Y1],
clone_tool->trans_info[X2],
clone_tool->trans_info[Y2],
clone_tool->trans_info[X3],
clone_tool->trans_info[Y3]);
if (widget)
g_object_set (widget,
"transform", &clone_tool->transform,
"x1", (gdouble) clone_tool->x1,
"y1", (gdouble) clone_tool->y1,
"x2", (gdouble) clone_tool->x2,
"y2", (gdouble) clone_tool->y2,
"pivot-x", clone_tool->trans_info[PIVOT_X],
"pivot-y", clone_tool->trans_info[PIVOT_Y],
NULL);
}
static void
gimp_perspective_tool_recalc_matrix (GimpTransformTool *tr_tool)
{
gimp_matrix3_identity (&tr_tool->transform);
gimp_transform_matrix_perspective (&tr_tool->transform,
tr_tool->x1,
tr_tool->y1,
tr_tool->x2 - tr_tool->x1,
tr_tool->y2 - tr_tool->y1,
tr_tool->trans_info[X0],
tr_tool->trans_info[Y0],
tr_tool->trans_info[X1],
tr_tool->trans_info[Y1],
tr_tool->trans_info[X2],
tr_tool->trans_info[Y2],
tr_tool->trans_info[X3],
tr_tool->trans_info[Y3]);
}
static void
gimp_perspective_clone_tool_recalc_matrix (GimpPerspectiveCloneTool *clone_tool)
{
gimp_matrix3_identity (&clone_tool->transform);
gimp_transform_matrix_perspective (&clone_tool->transform,
clone_tool->x1,
clone_tool->y1,
clone_tool->x2 - clone_tool->x1,
clone_tool->y2 - clone_tool->y1,
clone_tool->trans_info[X0],
clone_tool->trans_info[Y0],
clone_tool->trans_info[X1],
clone_tool->trans_info[Y1],
clone_tool->trans_info[X2],
clone_tool->trans_info[Y2],
clone_tool->trans_info[X3],
clone_tool->trans_info[Y3]);
gimp_perspective_clone_tool_transform_bounding_box (clone_tool);
}
static GimpValueArray *
perspective_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 x0;
gdouble y0;
gdouble x1;
gdouble y1;
gdouble x2;
gdouble y2;
gdouble x3;
gdouble y3;
drawable = gimp_value_get_drawable (gimp_value_array_index (args, 0), gimp);
interpolation = g_value_get_boolean (gimp_value_array_index (args, 1));
x0 = g_value_get_double (gimp_value_array_index (args, 2));
y0 = g_value_get_double (gimp_value_array_index (args, 3));
x1 = g_value_get_double (gimp_value_array_index (args, 4));
y1 = g_value_get_double (gimp_value_array_index (args, 5));
x2 = g_value_get_double (gimp_value_array_index (args, 6));
y2 = g_value_get_double (gimp_value_array_index (args, 7));
x3 = g_value_get_double (gimp_value_array_index (args, 8));
y3 = g_value_get_double (gimp_value_array_index (args, 9));
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_perspective (&matrix,
x, y, width, height,
x0, y0, x1, y1,
x2, y2, x3, y3);
if (interpolation)
interpolation_type = gimp->config->interpolation_type;
if (progress)
gimp_progress_start (progress, _("Perspective"), 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;
}
