Clone - repair tool : multiple selection for easy deletion or modification

Allow multiple selection of clone-repair masks, for easy deletion or modification of unwanted masks.

Possible usage scenario:

  1. Draw a bounding rectangle by holding the mouse left click button while dragging.
  2. All masks enclosed in the bounding rectangle are selected
  3. Press the delete key to delete all the masks

Possible usage scenario:

  1. Draw a bounding rectangle by holding the mouse left click button while dragging.
  2. All masks enclosed in the bounding rectangle are selected
  3. Modify mask attribute “opacity”