RiverWare Presentation Canvas: Tea Cup and Flow Animations / Questions
Phil Weinstein, CADSWES -- edit: 8-03-2014 -- See Project Index

Major Decisions

1. Output Device  or  Workspace View:
    
   1. Output Device Advantages:
      • Multiple Instances possible
      • Opportunity to implement pure Qt4-based design (no legacy Galaxy and Qt3-motivated design artifacts). May be easier to port to web.
        
        
   2. Workspace View Advantages:
      • Workspace-level support already implemented
      • Workspaces can benefit from some of the new development. For example:
        • Selectabilty of Text Items, e.g. for multiple Text Item move.
        • Text Item font selection, etc.
        • Possible unification of Similation (and Accounting) Views' image items / background image
           
2. Name:  "Diagram Canvas"  or  "Presentation Canvas"  or  other?
    
   
3. Tea Cup Data Composition -- either:
   1. Unrestricted selection of Series Slots
   2. SimObj / Associated Data Object-based slot references.
       
4. Canvas Implementation Options:
   1. Low-level painting [QWidget::paintEvent()] -- used for (Pie-) Chart
   2. Qt Graphics View (Qt4 and Qt5)
   3. Qt Quick 2 Scene Graph / QML (Qt5) -- "declarative rather than imperative"
       
5. Canvas Bounding (coordinates) approach:
   1. Configured Canvas Size
   2. Unrestricted, e.g. with "Zoom to Show All Items"

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