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Re: Development question

From: leon-pg(at)comvision(dot)com
To: Andreas Pflug <pgadmin(at)pse-consulting(dot)de>
Cc: pgadmin-hackers(at)postgresql(dot)org
Subject: Re: Development question
Date: 2005-02-14 15:03:53
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgadmin-hackers
Andreas, I understand where you're coming from. The issue arises 
because of a fundamental difference in Mac OS vs Windows/Linux window 
management. All Mac OS applications are a hybrid of MDI and SDI. I'll 
try to explain:

SDI Features
- There's generally no parent window enclosing the document windows

MDI Features
- Every app has a Window menu listing all of the app's open windows. 
This, along with the Cmd-` keyboard shortcut, are the two methods for 
accessing other windows of your app without clicking directly on them.
- There's only one Dock icon per application, regardless of how many 
windows are open

Since pgAdmin is not a wxWidgets MDI app, I don't think that wxWidgets 
is going to provide us with the Window menu. 
( I'm 
not familiar enough with wxWidgets to know if it can be made to provide 
a Window menu for SDI apps.

pgAdmin seems like it's part of the way towards fitting the OS X model 
nicely. As I mentioned before, the work of tracking open frames was 
already done for me. A search of the source for "frames" reveals this 
code. Building a Window menu based on the frame list shouldn't be hard. 
The other related issue is full Cmd-` support.
I am able to Cmd-` from the main window to a query window, but when I 
try to Cmd-` back to the main window, I just get a ` in the SQL text 

Since there's currently no way to get to completely-covered pgAdmin3 
windows without dragging other windows around to uncover them, I'm 
using Mac OS X's Expose feature as a workaround. Using the single-app 
mode of Expose, I can see all of my open pgAdmin3 windows in a sort of 
tiled view. (See the screenshot above F10 at if you're not familiar 
with this).


On Feb 14, 2005, at 5:54 AM, Andreas Pflug wrote:

> Leon Miller-Out wrote:
>> The Window menu will list all of the open windows and allow the user 
>> to switch between them.
> This sounds like MDI's window menu, but we're SDI. If there's some 
> window/topFrame registration/setup missing to allow the desktop to 
> switch between frames, then wxWidgets should do the stuff; it can't be 
> up to pgAdmin to manage the windows.
> Regards,
> Andreas

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