GimpCanvasItem *
gimp_draw_tool_add_transform_preview (GimpDrawTool *draw_tool,
GimpDrawable *drawable,
const GimpMatrix3 *transform,
gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2,
gboolean perspective,
gdouble opacity)
{
GimpCanvasItem *item;
g_return_val_if_fail (GIMP_IS_DRAW_TOOL (draw_tool), NULL);
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (transform != NULL, NULL);
item = gimp_canvas_transform_preview_new (gimp_display_get_shell (draw_tool->display),
drawable, transform,
x1, y1, x2, y2,
perspective, opacity);
gimp_draw_tool_add_preview (draw_tool, item);
g_object_unref (item);
return item;
}
static void
gimp_n_point_deformation_tool_draw (GimpDrawTool *draw_tool)
{
GimpNPointDeformationTool *npd_tool;
GimpNPointDeformationOptions *npd_options;
NPDModel *model;
gint x0, y0, x1, y1;
gint i;
npd_tool = GIMP_N_POINT_DEFORMATION_TOOL (draw_tool);
npd_options = GIMP_N_POINT_DEFORMATION_TOOL_GET_OPTIONS (npd_tool);
model = npd_tool->model;
g_return_if_fail (model != NULL);
/* draw lattice */
if (npd_options->mesh_visible)
gimp_n_point_deformation_tool_draw_lattice (npd_tool);
x0 = MIN (npd_tool->start_x, npd_tool->cursor_x);
y0 = MIN (npd_tool->start_y, npd_tool->cursor_y);
x1 = MAX (npd_tool->start_x, npd_tool->cursor_x);
y1 = MAX (npd_tool->start_y, npd_tool->cursor_y);
for (i = 0; i < model->control_points->len; i++)
{
NPDControlPoint *cp = &g_array_index (model->control_points,
NPDControlPoint, i);
NPDPoint p = cp->point;
GimpHandleType handle_type;
p.x += npd_tool->offset_x;
p.y += npd_tool->offset_y;
handle_type = GIMP_HANDLE_CIRCLE;
/* check if cursor is hovering over a control point or if a
* control point is situated in an area defined by rubber band
*/
if (cp == npd_tool->hovering_cp ||
(npd_tool->rubber_band &&
gimp_n_point_deformation_tool_is_cp_in_area (cp,
x0, y0,
x1, y1,
npd_tool->offset_x,
npd_tool->offset_y,
npd_tool->cp_scaled_radius)))
{
handle_type = GIMP_HANDLE_FILLED_CIRCLE;
}
gimp_draw_tool_add_handle (draw_tool,
handle_type,
p.x, p.y,
GIMP_TOOL_HANDLE_SIZE_CIRCLE,
GIMP_TOOL_HANDLE_SIZE_CIRCLE,
GIMP_HANDLE_ANCHOR_CENTER);
if (g_list_find (npd_tool->selected_cps, cp))
{
gimp_draw_tool_add_handle (draw_tool,
GIMP_HANDLE_SQUARE,
p.x, p.y,
GIMP_TOOL_HANDLE_SIZE_CIRCLE,
GIMP_TOOL_HANDLE_SIZE_CIRCLE,
GIMP_HANDLE_ANCHOR_CENTER);
}
}
if (npd_tool->rubber_band)
{
/* draw a rubber band */
gimp_draw_tool_add_rectangle (draw_tool, FALSE,
x0, y0, x1 - x0, y1 - y0);
}
if (npd_tool->preview_buffer)
{
GimpCanvasItem *item;
item = gimp_canvas_buffer_preview_new (gimp_display_get_shell (draw_tool->display),
npd_tool->preview_buffer);
gimp_draw_tool_add_preview (draw_tool, item);
g_object_unref (item);
}
GIMP_DRAW_TOOL_CLASS (parent_class)->draw (draw_tool);
}