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Analysis

Overview

This revision of the task will introduce prototype drag and drop functionality. As well as support for more DndData that can be transferred in Sophie2.0 (see BASE_DND_R0 for more information.)

Task requirements

• Supply base classes for drag and drop management.
  • Create a global drag and drop manager that will handle part of the drag and drop operations. The rest should be handled in the corresponding logic.
  • Create DndData implementations for resources.
• After creating the drag and drop base classes:
  • provide implementation for drag and drop as well as cut/copy/paste of images using the already created ImageData.
  • provide implementation for drag and drop as well as cut/copy/paste of resources.
    • Create DndData implementation for resources - Frames would be enough for current revision.
    • Integrate the DndData implementation with the D'n'd and Clipboard managers.
• Provide a diagram of the D'n'd manager.
• Create a wiki page named BASE_DND, to serve as a reference for all drag and drop and cut/copy/paste functionality. It should have all the design of the base library, as well as the already implemented functionality. For example explaining the use cases that are implemented.

Task result

• source code.
• wiki content with diagrams.

Implementation idea

• Create a DndManager class. It should be able to provide the interaction between VisualElements.
• Create a FrameData class, that should represent a DndData for Frames. It would be difficult to create the hierarchy for all resources without having a use case implemented and the frame will be our starting point.
• Create the diagram using netbeans and put it in the newly created page. Put also the wiki content of the previous revision of this task.

Related

• BASE_DND_R0

How to demo

• Use case 1:
  • Start sophie.
  • Drag and drop or cut/copy and paste an image frame from sophie2 to an image redactor. (for example gimp).
    • The image from the image frame should appear in the redactor.
  • Drag and drop or cut/copy and paste another image from the image redactor to sophie.
    • This should create a frame with an image content if dropped on the page.
    • This should change the current image of the image content if dropped on an image frame.
• Use case 2:
  • Start sophie.
    • Create some frames.
    • Drag and drop or cut/copy and paste a frame resource from the resource palette to the page work area.
      • The corresponding frame should appear as a copy of the selected one.

Design

Implementation

Testing

^{(Place the testing results here.)}

Comments

^{(Write comments for this or later revisions here.)}