Re: [Qt-qml] Error with PropertyAction/SequentialAnimation/Timer
Thanks,
That works!
The behaviour does seem slightly strange though - I would expect the JS
function to complete and THEN have everything else updated, but as long as I
know that this is the current behaviour I can create code accordingly.
Thanks again
Mark
-Original Message-
From: Adriano Rezende [mailto:adriano.reze...@openbossa.org]
Sent: 07 December 2010 19:16
To: Mark Tucker
Cc: qt-qml@trolltech.com
Subject: Re: [Qt-qml] Error with PropertyAction/SequentialAnimation/Timer
On Tue, Dec 7, 2010 at 12:59 PM, Mark Tucker mark.tuc...@airborne.aero wrote:
Timer {
id: textTimer
interval: 5000
repeat: true
running: true
triggeredOnStart: true
onTriggered: {
listIndex++;
if (listIndex = model.count) {
listIndex = 0;
}
//console.log(listIndex: + listIndex +
count: + model.count)
textAnimation.start();
}
}
}
For some reason the PropertyAction is being called when listIndex is 3
and hence causes an error due to an undefined value. I'm failing to see
how it should ever be the case that listIndex should be 3 when the
PropertyAction does its thing though.
I believe QML will reevaluate a JS statement each time you change a
bindable property contained in that statement. So, even if the
animation is not running, model.get(listIndex).dataString will be
reevaluated when listIndex changes.
So, in order to solve this problem you can change the code below:
listIndex++;
if (listIndex = model.count) {
listIndex = 0;
}
for the following:
listIndex = (listIndex + 1) % model.count;
Br,
Adriano
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Re: [Qt-qml] QML Action element
2010/12/8 warwick.alli...@nokia.com:
I hope declarative doesn't end up meaning screw abstraction, we'll
make everything as painfully concrete as possible ;-).
Actions are a nice way to declare a bunch of things that the user can
do, which can later be moved around by the view developer to different
presentation (toolbar / app menu / context menu / shortcut / tv remote
control / whatever). Compared to just exposing a method, Action can
have icon, (translated) text, status tip, etc...
And yet they bind the notions of UIs are a bunch of commands and commands
have static icons and test labels into the design language of the user
experience, while abstracting something that is trivial.
Anyone trying to write applications by devising a traditional
toolbar-menu-buttons UI and then expecting some magic style to be applied
to their abstraction in order to make a pleasant UI is riding on the wrong
bus.
Start with the interaction design and the abstract logic engine, then bring
the two together. Do not just add UI abstractions on the engine and expect
success - that only works for SAP and Lotus Notes, and well, it doesn't
actually work at all, does it?
Mini-{rant,remark}: If you argue about abstraction, one could say that
MouseArea does not have to have the clicked signal, as pressed and
released already provide everything one needs, and clicking is
something that comes from a traditional mouse-centered UI, and already
encourages designers to think in terms of clicks. (Why isn't it
called TouchArea or InteractiveArea? Where are the gestures? onPinch?)
Thomas
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[Qt-qml] Loading font from resource file not working on Symbian
Hi, in my QML UI I'm loading a font out of a resource file. On Linux and Windows it seems to work, but on Symbian (and I think Maemo) I get the following error: qrc:qml/MainWindow.qml:16:5: QML FontLoader: Cannot load font: qrc:qml/fonts/Ubuntu-R.ttf This is with Qt 4.7.1. Is this a known bug or am I missing something? Thanks! Conny ___ Qt-qml mailing list Qt-qml@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-qml
Re: [Qt-qml] Loading font from resource file not working on Symbian
Hi, I think the Symbian Qt port is just lacking functionality in this department (don't know about Maemo). You can work around this though with some Symbian specific code. Non-damaged souls and uninterested parties, please close your eyes for the rest of this e-mail. You need to tell the Symbian FBS (font and bitmap server) that it should add your font to the typeface store. You can do that with this bit of code: TInt id; CEikonEnv::Static()-ScreenDevice()-AddFile(_L(path to your font file), id); You don't have to explicitly add the font file, if you deploy to \resource\fonts\ (you still need to refresh the store or reboot after installation though), but I would advise against that, because it complicates uninstalling and updating (the font file will be locked after boot and you'll need to provide a small exe in your .sis file to unload the font). You can clean up after yourself using RemoveFile() if your app is somewhat rarely used and you want to free up the resources. After adding the font file to the typeface store you can use the font in your QML elements just by referring to it in font.family property. Juha On Wed, Dec 8, 2010 at 12:39 PM, Cornelius Hald h...@icandy.de wrote: Hi, in my QML UI I'm loading a font out of a resource file. On Linux and Windows it seems to work, but on Symbian (and I think Maemo) I get the following error: qrc:qml/MainWindow.qml:16:5: QML FontLoader: Cannot load font: qrc:qml/fonts/Ubuntu-R.ttf This is with Qt 4.7.1. Is this a known bug or am I missing something? Thanks! Conny ___ Qt-qml mailing list Qt-qml@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-qml ___ Qt-qml mailing list Qt-qml@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-qml
Re: [Qt-qml] Loading font from resource file not working on Symbian
Hi Juha, On Wed, 2010-12-08 at 13:52 +0200, Juha Turunen wrote: I think the Symbian Qt port is just lacking functionality in this department (don't know about Maemo). I just tried again on Maemo and the font is loaded correctly. So the problem really only seems to be Symbian. You need to tell the Symbian FBS (font and bitmap server) that it should add your font to the typeface store. You can do that with this bit of code: TInt id; CEikonEnv::Static()-ScreenDevice()-AddFile(_L(path to your font file), id); Looks a bit scary to a Symbian noob like me :) Also I then can't load the font from the resource file anymore. Still, if this part is missing in Qt, it seems to be a reasonable way. You don't have to explicitly add the font file, if you deploy to \resource\fonts\ (you still need to refresh the store or reboot after installation though), but I would advise against that, because it complicates uninstalling and updating (the font file will be locked after boot and you'll need to provide a small exe in your .sis file to unload the font). You can clean up after yourself using RemoveFile() if your app is somewhat rarely used and you want to free up the resources. After adding the font file to the typeface store you can use the font in your QML elements just by referring to it in font.family property. Thanks a lot for all this information. I'll give it a try as soon as possible. BTW, do you know if there is a bug report about this already? If not I think I should file one. Cheers, Conny ___ Qt-qml mailing list Qt-qml@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-qml
Re: [Qt-qml] Loading font from resource file not working on Symbian
You need to tell the Symbian FBS (font and bitmap server) that it should add your font to the typeface store. You can do that with this bit of code: TInt id; CEikonEnv::Static()-ScreenDevice()-AddFile(_L(path to your font file), id); Looks a bit scary to a Symbian noob like me :) Also I then can't load the font from the resource file anymore. Still, if this part is missing in Qt, it seems to be a reasonable way. Don't be afraid the water is warm.. :) Just flag it with Q_OS_SYMBIAN and #include eikenv.h and w32std.h Thanks a lot for all this information. I'll give it a try as soon as possible. BTW, do you know if there is a bug report about this already? If not I think I should file one. I could dig a bit and try to find out where the problem is (I'm sure it'll get fixed faster that way) and file a report. I remember trying out the FontLoader on Symbian myself a while ago and it didn't work, so the problem is probably something else than just embedding the font into a Qt resource file (I can imagine getting that working might be hairy). Juha ___ Qt-qml mailing list Qt-qml@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-qml
Re: [Qt-qml] How to know who is the parent !
Hi Thomas, 2010/12/8 Thomas PABST thomas.pa...@gmail.com: When we design new QML Element which can be call by a lot of other QML elements( Items, Buttons ...) we sometime need to know which call it. I am looking for a way to know how the current element was called. Which is the source, but only with qml or JavaScript, not c++. On my case, many elements call only one element. But the action will differ depending on who called it. Do you mean can be a child or do you mean can be called? What is an action in that case then? Can you give an example? If it's about child elements, maybe you can solve the problem by properties on the child element, so that the properties control how it looks/what it does (this also makes it more modular, as the child does not need to know the details about its surroundings, but rather only needs to know its properties and what they mean). If it's about some callback/function, the same thing applies - just pass the action you want to do as parameter (e.g. an enum or a string describing the action), so that the callee does not need to know who called and from where - improves modularity, and should produce cleaner code. HTH. Thomas ___ Qt-qml mailing list Qt-qml@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-qml
Re: [Qt-qml] Loading font from resource file not working on Symbian
On Wed, Dec 8, 2010 at 11:56 AM, Cornelius Hald h...@icandy.de wrote: Thanks a lot for all this information. I'll give it a try as soon as possible. BTW, do you know if there is a bug report about this already? If not I think I should file one. Hi, I faced the same problem. It seems that application fonts are not supported for Symbian yet: http://bugreports.qt.nokia.com/browse/QTBUG-6611 Br, Adriano ___ Qt-qml mailing list Qt-qml@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-qml
[Qt-qml] print the stack trace in QML?
Hi, Is there any way in QML to access the stack trace information when error happens? Something like the error.stack or console.trace function in web browsers will be useful to quickly identify the problem. B.R. Johnson Ma Keep it simple, stupid ___ Qt-qml mailing list Qt-qml@trolltech.com http://lists.trolltech.com/mailman/listinfo/qt-qml
