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Old

Generic QT Signal/Slot --or-- Using Dummy Custom Widget in Designer -- No Plugin Req'd

Posted 12-13-2012 at 01:52 PM by rainbowsally

[This is FUN!! It works. What a freaking trip. :-)]

The previous entry on using Old Style callbacks wasn't much of a hit. Ooooooohhhh... it's a hit alright.

But here it is in it's second incarnation cleaned up a bit though it needs a bit more simplification due to the number of elements that are involved and where they need to go. But this is cool.

Today's Features
  • Using a custom widget in Designer without making the plugin.
  • Using the "Old
...
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Old

A Stand Alone executable QT MsgBox with Stays On Top attribute

Posted 12-13-2012 at 07:59 AM by rainbowsally

A Stand Alone executable QT MsgBox with Stays On Top attribute.

Today's Features:
  • A non-modal qt based dialog/message box that STAYS ON TOP of the window stack.
  • How to center a window on the screen.
  • Using the short optargs to parse the options.

The msgbox utility in the 'extras' folders of the mc2 d/load (see link below) uses xmessage for the display widget. That makes it independent of QT so it can run on any computer that has the X windowing system.

...
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Old

"Old Style" Callbacks In QT4 (commandline tester)

Posted 12-12-2012 at 08:25 AM by rainbowsally

What would be involved in creating a generic callback that we could control ourselves, rather than using QTs rather complicated system?

How about a windows style system with a windproc to handle messages?

QT's API is better than windows in that you can see how things are done, especially if you have the C++ sources. It's as visible as you can stand! ;-)

The Windows API is better than QT's only in one respect, and that is that the type safety is somewhat...
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Old

QT4 dialog & using MC2 EXT_ALL target examples

Posted 12-11-2012 at 12:45 AM by rainbowsally

The sources are in the qt4 demos and you can use the pro file if you like, but here's example of how to use the EXT_ALL target in an mc2.def.

This also applies to makefiles in general, but it's much easier to work through an intermediate system such as mc2.

It is also a great demo for using dialogs, and you can choose native or QT built-in styles for them, which makes a big difference for the file and color selection dialogs.

I particularly like the file
...
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Old

A stand-alone TextDisplay widget in QT

Posted 12-10-2012 at 02:47 PM by rainbowsally

A stand-alone TextDisplay widget in QT

Skip this part if you know about mc2 (makefile creator, the second generation)

--------------------
Before we start, if you haven't tried mc2 yet, don't be put off by the installation location. The Computer Mad Science Team uses 4 levels of installation for various kinds of apps.

The most basic type is the HOME/bin sandbox. This allows instantly running applications because that folder is usually in the...
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