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An STL Template Experiment

Posted 12-18-2012 at 06:05 PM by rainbowsally

Today's features:
  • Getting an address of an iterator from stl.
  • Creating a foreach() macro.
  • A couple of ways to work around unwanted C++ compiler warnings.

STL is a freaking nighmare to trace in a debugger so it's not too easy to tell what goes on in them but one thing became quite clear and that is that iterators are generic pointer types internally, which makes sense since STL needs to deal with so many different types.

Here's a little test to play with to show how...
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Old

Tooling Up. ui-tool (QT4 ui file utilites)

Posted 12-15-2012 at 11:16 AM by rainbowsally
Updated 06-10-2013 at 05:17 PM by rainbowsally (bullet list not showing correctly + typo fix + parag alignment)

UPDATE: (2013-06-10) There's a stand-alone version of the uitool here.
http://www.linuxquestions.org/questi...3-06-10-35568/

It's part of the next libLQ-qt/mc2 project but that lib is not ready to fly yet.

--------
Note: This is now part of the libLQ-qt download, but it's been renamed lq-uitool. It builds in the tools folder and should install automatically if all goes well.

But...
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Old

ui-tools implementation (ui-tools.cpp)

Posted 12-15-2012 at 10:57 AM by rainbowsally
Updated 12-15-2012 at 09:29 PM by rainbowsally (linkage to first part + parag alignment fixed)

ui-tools implementation (ui-tools.cpp)

The following changes are in the code below, but are listed in case you already have the file and want to fix it yourself (and see the context of the problem).

Changelog Dec 15 2012 (second prob)
"Unknown error" msg issued when it's not an error.

Here's the fix. Whenever we call
Code:
  ok = find_slots(...);
we need to return 'true' without acting on the return values but not return 'false'...
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Old

A QT4 InfoBox w/ StaysOnTop, Gradients, And Some Other Junk

Posted 12-14-2012 at 05:04 AM by rainbowsally
Updated 08-06-2014 at 10:37 AM by rainbowsally

A QT4 InfoBox

Today's Features
  • An Info Box, callable the commandline or a shell program that has scrollbars and resizes depending on content.
  • Using some of the LQ-qt lib functions.
  • A gradient stylesheet. Open the ui file with Designer and take a peek at the stylesheet syntax.
  • A snippet to make a window stay on top.
  • A way to resize a form window depending on text width and height of a TextEdit widget.
  • Using grid layout to make a resizable window and using 'widgets' instead
...
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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 02:52 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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