So I had an issue with KCachegrind where I would open a cachegrind profile file and “nothing happened”. The status bar said the file had loaded, but the user interface widgets were all empty. Turns out clicking Settings -> Sidebars -> Function Profile loaded the part of the UI I needed to get started… everything is easy when you know how!
Category Archives: Programming
Disabling F6 ‘Run Main Project’ hot key in NetBeans because of G15 keyboard
I have a G15 keyboard, and I love it (but not as much as the old model!), but it occasionally causes a problem for me when I’m programming in NetBeans on Debian GNU/Linux.
The issue is that on a newer G15 the G6 key is right near the Ctrl key, and from time to time my pinky hits the G6 key which seems to be by default programmed to be the F6 key.
By default in NetBeans the F6 key is the ‘Run Main Project’ hot key, so when I accidentally press it, it fires up a Firefox window and tries to run my web app! I never configure my web apps in NetBeans, but even if I did, I don’t want to accidentally run anything due to an accidental key press.
So my solution was to disable F6 in NetBeans, and for that:
Tools -> Options -> Keymap -> Click ‘Search in Shortcuts’ -> Press F6 -> Click on the ‘…’ in the Shortcut cell for ‘Run Main Project’ (should be F6) -> Clear -> Apply -> And you’re done!
Everything is easy when you know how!
Firebug DOM panel colour-coding/legend
Found out (over here) that the colour codes in Firebug are:
Format Description Bold Black Objects Black DOM objects get in gray "Getter" functions Bold green User functions Green DOM functions Bold Red Constructor functions
Native HTML5 Drag and Drop
Found an article on Native HTML5 Drag and Drop…
window.resizeTo( … )
See here:
- You can’t resize a window or tab that wasn’t created by window.open.
- You can’t resize a window or tab when it’s in a window with more than one tab.
- Also, even if you create window by window.open(…) it is not resizable by default …see 4.
- To make window created by window.open() resizable, you must open it with resizable feature
myExternalWindow = window.open("http://example.com", "myWindowName", "resizable");
myExternalWindow.resizeTo(500,500); //resize window to 500x500
What to do if you accidentally press Ctrl+S in Vim
If you press Ctrl+S in Vim (i.e. because that’s hard-wired for ‘save’) your terminal may lockup, depending on how it’s configured.
If you want to know why, have a read here. If you just want to get on with life, press Ctrl+Q!
Everything is easy when you know how.
Input keyboard for decimal input on iPhone
So I needed to adjust a value (the odds of a horse winning a race) that has a fractional part and an integer part (i.e. a ‘double’, or ‘float’). The standard numeric input on an iPhone doesn’t include a decimal point, so I needed to trigger a different input device.
I ended up with this:
<input type="number" pattern="[\d\.]*" step="0.01" inputmode="numeric">
HTML glow effects
Found some cool glow effects. Couldn’t actually get them to work in my context, but it’s the thought that counts.
Passing selected value into HTML select onchange handler
So you have a <select> element and you want to call a handler, but you need to pass the selected value to the handler because you have multiple instances of the same <select> and can’t access them by ID (because there is many, one of which will have the new selected value, but you don’t know which). The solution is to pass in the newly selected value, like this:
<select onchange='handle_change( this.value )'>
Easy-peasy!
Web Content Accessibility Guidelines (WCAG) 2.0
Read a little bit of the Web Content Accessibility Guidelines (WCAG) 2.0… should come back to this when I have more time.