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Menu Builder
Message
From
15/06/1999 10:17:58
 
 
To
15/06/1999 10:09:21
Mark Hall
Independent Developer & Voip Specialist
Keston, Kent, United Kingdom
General information
Forum:
Visual FoxPro
Category:
Menus & Menu designer
Title:
Miscellaneous
Thread ID:
00229906
Message ID:
00229948
Views:
16
I'm sure you already had this thought, but here it is just in case. I had the thought to use the access and assign methods in the new version to allow you to have actual properties instead of the methods you were forced to use in VFP 5. I will take a look at the bug code and see if there is a way around. I would be happy to work on this with you if you wish. It seems to me that moving everything to use access and assign methods shouldn't be too hard. (famous last words) My idea for the builder was a tree view control with drag and drop functionality and tons of options. I also have other ideas, but it will take modifications to your classes. For instance: Being able to choose a specific color for a bar or pad. Anyway, let me know.

Thanks

>Hi Brian,
>
>Thanks for your comments. A builder would be a good idea. I had some plans to generate object menu code from the .MNX file created by the VFP menu builder. I still think that this would be a good approach, but I haven't had the time to do it. As far as distributing the compiled code is concerned, I have no problem with that. Although I am having problems with the VFP 6 version.
>
>A while ago I set about recompiling for VFP 6 and the code started crashing. Same stuff works fine in VFP 5. I had a brief msg exchange with Randy Brown at Microsoft who said that the problem was by design and that was that!
>
>As object menus are once more being talked about, I would welcome input from anybody on this issue.
>
>Here's the code example that I used to highlight the problem to Randy. The issue is that a reference to THIS.Parent is now not working in the Destroy of an object.
>
>This works in VFP5 but not VFP6
>
>*------------- Start BugDemo.Prg
>*-- This mimics the creation of a hierarchy of menu objects
>CLEAR
>_SCREEN.AddObject("Menu", "MainDemo")
>_SCREEN.Menu.AddObject("File", "SubDemo")
>_SCREEN.Menu.AddObject("Edit", "SubDemo")
>_SCREEN.Menu.AddObject("View", "SubDemo")
>_SCREEN.Menu.AddObject("Tools", "SubDemo")
>_SCREEN.Menu.AddObject("Help", "SubDemo")
>
>_SCREEN.Menu.File.AddObject("Exit", "SubDemo")
>
>_SCREEN.Menu.Edit.AddObject("Copy", "SubDemo")
>
>_SCREEN.Menu.View.AddObject("Data", "SubDemo")
>
>_SCREEN.Menu.Tools.AddObject("Test1", "SubDemo")
>_SCREEN.Menu.Tools.AddObject("Test2", "SubDemo")
>_SCREEN.Menu.Tools.AddObject("Add", "SubDemo")
>_SCREEN.Menu.Tools.AddObject("Test3", "SubDemo")
>
>_SCREEN.Menu.Help.AddObject("About", "SubDemo")
>
>_SCREEN.Menu.Tools.Add.AddObject("Report", "SubDemo")
>_SCREEN.Menu.Tools.Add.AddObject("Remove", "SubDemo")
>
>_SCREEN.Menu.Tools.Add.Report.AddObject("Print", "SubDemo")
>_SCREEN.Menu.Tools.Add.Report.AddObject("Preview", "SubDemo")
>
>*-- Demonstrate the problem.
>WAIT WINDOW "Press any key to crash me (VFP 6 only)"
>_SCREEN.Menu.Tools.Add.Remove.Execute()
>
>*-- If you just DO KillItems here, without using the EXECUTE method
>*-- then all is OK
>*-- DO KillItems
>
>*-- If all is well, we'll get to this point
>_SCREEN.RemoveObject("Menu")
>? "Done It"
>
>
>
>*-- Remove a couple of the menu items
>PROCEDURE KillItems
>_SCREEN.Menu.Tools.Add.RemoveObject("Report")
>_SCREEN.Menu.Tools.Add.RemoveObject("Remove")
>
>
>
>*-- Define Two classes.
>DEFINE CLASS MainDemo AS CUSTOM
>Children = 0
>ENDDEF
>
>DEFINE CLASS SubDemo AS CUSTOM
>PROTECTED pCommand
>Children = 0
>*-- For the demo, all objects have the same command
>pCommand = "DO KillItems"
>
>PROCEDURE Execute
>LOCAL lcCommand
>lcCommand = THIS.pCommand
>*-- Start debugging here!
>&lcCommand
>ENDPROC
>
>PROCEDURE Init
>THIS.Parent.Children = THIS.Parent.Children + 1
>? "INIT " + THIS.Name
>ENDPROC
>
>PROCEDURE Destroy
>THIS.Parent.Children = THIS.Parent.Children - 1
>? "KILL " + THIS.Name
>ENDPROC
>
>ENDDEF
>
>*--------- End BugDemo.Prg
Brian McCord
President
Sagacity Systems
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