Design notes

Supporting multiple views

Stock Browser supports one view for each Stock Viewer document. Supporting multiple views is an extension that you can easily add to this program.

TViewerContentView is currently implemented to own one TGraphView object which it adopts into a TScrollingView. TViewerContentView can be implemented to own a collection of TGraphView objects, adopt them into an intermediate view, lay them out and then adopt the intermediate view into a TScrollingView.

Support for drag and drop functionality

Like the Stock Picker subsystem, the Stock Viewer subsystem takes advantage of the drag and drop features provided by the Taligent Selection Tool documented sample. For the Stock Viewer subsystem, these features are provided by the MDragOMaticView and TDOMDocumentComponentView classes.


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