Qt is an application framework originally created by Trolltech and currently managed by Digia. The KDE desktop uses the Qt framework for its applications.

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6
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How to change index in OptionSelector immediately (without animation)?

In my app, I use an OptionSelector to choose from a list of bike stations. I also have a map component with placemarkers for each station. When I tap a placemarker, it also changes the OptionSelector ...
2
votes
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77 views

Font hinting problems in Dropbox, other Qt applications

I'm using Ubuntu 14.04 and font hinting works perfectly as usual, except for a couple of applications: Dropbox's preferences and Dwarf Therapist. Since they are both Qt apps, I figure that's where the ...
2
votes
0answers
113 views

Unity launcher, dash and menu fonts are not anti-aliased

I am running Ubuntu 14.04. After installing Qt4 settings manager and tinkering with it (changing the font face for Qt apps) I notice that unity launcher, dash and menu and date indicator fonts are not ...
2
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0answers
274 views

Multitouch in Qt

I've got a fresh install of Kubuntu 14.04 and Qt Creator/5.2.1, and I'm trying to get multi-touch working for the example applications like photosurface. My input device is an Acer T272HL 10 point ...
2
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0answers
207 views

Puzzle Game QML GridView Animation Problems

I've been working on a puzzle game for Ubuntu Touch and I'm facing some issues with animations. The problem seems to occurs when GridView animations (add, move, remove...) play too fast. Something ...
2
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0answers
287 views

After compiling QT 5 how do I to update my system? With update-alternatives?

I'm on Ubuntu 12.04. I followed the instructions in this guide in order to compile QT5. Everything compiled fine. My problem now is that my QT related programs are still pointing to an older ...
2
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0answers
469 views

Qt 5.1.1 installation problem

I am new to ubuntu and using 12.04 LTS. I tried to install Qt5.1.1 without software manager. I downloaded the qt-linux-opensource-5.1.1-x86-offline.run file and ran it. It ran smoothly and got a ...
2
votes
0answers
553 views

Amarok doesn't start after qt4-related ubuntu updates (from raring-updates)

Last Monday I updated my Ubuntu 13.04 and there were a bunch of qt4 related updates. (I don't know how to have a list of the updated packages which isn't taking a screenshot of Ubuntu Software Center ...
2
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180 views

Compose Key combinations are wrong in KDE/QT apps

On Kubuntu 12.04 LTS. For some reason, Qt applications (Kate, Konsole, etc.) were loading the ISO8859-1 Compose key file, instead of UTF-8. Other applications (Chrome and Java apps, for example) were ...
2
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0answers
198 views

PySide application lost icons when upgraded to Ubuntu 13.04

I'm developing an application in Python 3 using PySide. I upgraded my system form 12.10 to 13.04 today, and now I no longer have icons in my toolbar. The icons are loaded using QIcon.fromTheme(). Does ...
2
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0answers
1k views

When I install Xubuntu 12.04, the Qt-applications font is horrible

What is the proper way to set up fonts in Skype, VLC, and so on?
1
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26 views

KDE 4 Strange Problem

A problem with KDE is really driving me crazy, any help would be greatly appreciated. I have a xunbuntu 14.04 on which I installed kde-plasma-desktop. There are very few styles (System settings -> ...
1
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0answers
90 views

Installing android studio

When I tried to install android studio on my 14.04LTS ubuntu system on opt directory as according to mentioned on by clayton(ubuntu user) but I could not install it as accordingly. 1.unpack android ...
1
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0answers
29 views

How to run Qt app compiled&linked with Qt 4.8.4 on a system with integrated Qt 4.8.6

I wrote an application using Qt 4.8.4. Now I purchased a new PC and installed Kubuntu 14.10 based on Qt 4.8.6. To develop my application, I built Qt 4.8.4 from source using make install and that went ...
1
vote
0answers
21 views

How to force use of “overflow menu” for actions on header bar?

I am using header actions in my Ubuntu SDK app, but I would like to avoid clutter on the header bar. I have noticed that the Android-style "overflow menu" autocreates itself after a certain number of ...
1
vote
0answers
92 views

qmake could not exec error while building Qt from source

I'm having an issue building QT from it's sources. I have to build from sources due to a strange requirement (that's how we are going to do it at work, once we start using QT). Building from sources I ...
1
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0answers
268 views

How build against qt 5.3.1?

Trying to build qt-creator v3.2.2 from source on Ubuntu 14.10. Fails. Qmake can't find qt5.3.1 $ qmake -r ... Project WARNING: QmlDesigner plugin has been disabled. Project WARNING: This plugin ...
1
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0answers
40 views

Qt-creator publish tab missing click part

I am trying step by step to write some simple tutorial Ubuntu apps using qt-creator. First I've chosen HTML5 App then after writing some hello code or even after doing nothing I've tried to create a ...
1
vote
0answers
91 views

How to configure Qt to access standard icon resources/themes?

I am developing an app using Qt designer and struggling with mechanizing the icon resource themes. Essentially, I'd like to access all of the standard icons when I click choose resource. Where on ...
1
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0answers
242 views

run qt designer/qt assistant with commands designer/assitant respectively

I'm used to an environment where I run the qt designer/qt assistant simply typing designer/assitant in the terminal. I am talking about qt 4. I've been installing packages such as qtcreator and ...
1
vote
0answers
48 views

Qml HUD integration without MainView?

I'm working on an app with Qt Quick Components, I don't want to use any Ubuntu specific components because I want the desktop version of my app to be more portable than that (Qt 5.2 is enough of a ...
1
vote
0answers
400 views

Qt4 interface not working for VLC

This is what happens if I try to run VLC: main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface. main interface error: option qt-volume-complete does not exist ...
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0answers
24 views

Use SystemSettings 1.0?

I'm developing a new app that I need to use the SystemSettings module for (I need to get the device serial, IMEI and stuff). When looking for a way to get these numbers I came across Ubuntu System ...
1
vote
0answers
73 views

Cannot import directory path to qmlscene

I am trying to import directory in QML as explained, here: http://qt-project.org/doc/qt-5.0/qtqml/qtqml-syntax-directoryimports.html. I have the following ubuntu-app | - extras1 | - extras2 | - ...
1
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0answers
40 views

QT 4 update, removing lots of libs

I get a message from Muon update module aksing to update QT 4. Thats fine, but it also want to remove LOTS of libs and programs (incl spotify, ksystemlog, krdc, krfb, kdepim-runtim, userconfig and ...
1
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0answers
62 views

Way to catch shutdown event in Unity, Ubuntu 13.04

I'm developing gui application (C++/Qt) and now search for correct(documented) termination way for application. Is there any documentation how Unity DE notifies gui applications to exit (some analog ...
1
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0answers
85 views

Setup compilation with Qt, Boost and muParser

I am a new comer on the Ubuntu worldwide and I have to complete a project. I have developed a plugin for LibreCAD with Windows. I am now working with Ubuntu 13.10 and I would like to compile LibreCAD ...
1
vote
0answers
62 views

Behavior on listView

I need to scroll an element of a ListView to bottom when user clicks on it, with an animation. I want to use Behavior for the animation, but I do something wrong. I have no problem with the scroll ...
1
vote
0answers
2k views

Not finding QT4 QWidget after update

Updated from buntu 11.0 to 12.04. I use to have QT4 ver 4.7.4, now I have 4.8.1. My project is failing to build because it can't find #include <QWidget>. A search of the disk tells me there is ...
0
votes
0answers
9 views

install qtmobility on ubuntu

I couldn't find any good link for downloading qt-mobility packages. and I also couldn't find any good installation guide for this. the most of the links are outdated. Thank you.
0
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0answers
14 views

PlayonLinux some issues of starting programmes

I am using the latest version of Ubuntu. Today I installed POL and wine. But while I try to install a program, I get the message: This application failed to start because it could not find or load ...
0
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0answers
128 views

Ubuntu 14.10 xrdp works, but Qt Creator doesn't

I'm running Ubuntu 14.10 x64 and xrdp works perfectly, I'm using the Xfce desktop by the way. Qt Creator works, but when I log in using xrdp Qt Creator doesn't open. So I tried running it from the ...
0
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0answers
25 views

How to build .deb package with ubuntu-sdk

How can i build a .deb package with ubuntu-sdk? I don't want to publish to the ubuntu software center, only need a .deb package for my Ubuntu-SDK/QT Creator project. Thanks
0
votes
0answers
19 views

Can you use QProcess in a Click Packaged Application?

I am just curious whether this is something AppArmor allows or not? My application works fine on the desktop, but I can't get Standard output or error to even display in my app when I run it from the ...
0
votes
0answers
33 views

Why doesn't Transmission-qt use Oxygen theme in Kubuntu?

transmission-qt doesn't use oxygen theme on Kubuntu. The buttons are GTK style. How do I get Transmission to use Oxygen theme? Thanks.
0
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0answers
30 views

Use the design function of Qt Creator when developing Ubuntu apps

I would like to start developing Ubuntu apps with Qt Creator and I have a few queries when making a simple qml qt app. Firstly, is it normal qml and javascript? Can I use all normal qml and ...
0
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0answers
45 views

Qt-wallets will not open after 14.04 upgrade?

Qt-wallets will not open from folders or terminal after 14.04 upgrade. when I attempt to launch from terminal it gives me as follows for the reason: error while loading shared libraries: ...
0
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0answers
38 views

this qt-mt driving me crazy help

checking for Qt... configure: error: Qt (>= Qt 3.3 and < 4.0) (library qt-mt) not found. Please check your installation! For more details about this problem, look at the end of config.log. Make ...
0
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0answers
32 views

Signal called on user logout

I would like to ask what is the signal that is called when the user logs out? I have a Qt gui app that has handler for SIGTERM and SIGHUP signals. The app also has its own close event handler, so user ...
0
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0answers
32 views

How do I implement multiple keymaps into a kernel?

my problem is as follows: I have a custom-made kernel that has no functionality in regards of changing the keyboard mapping. It is possible to compile a different keymap into it, but that's it. The ...
0
votes
0answers
135 views

WARNING: TARGET is empty make: Nothing to be done for `first

Can anyone help with this error WARNING: TARGET is empty make: Nothing to be done for first'. I wish to build this qt package When I run ./compile in the the downloaded folder, it gives this ...
0
votes
0answers
112 views

QT applications indicator and appmenu don't work / ubuntu 14.04

I'm not sure when this happened,but form yesterday,I found my VLC player's indicator and appmenu dont work. there is no indicator icons and appmenu doenst appears on the top bar. Not only VLC but ...
0
votes
0answers
130 views

QT5.1.1 installation problem

while I try to installing QT in Ubuntu I got error as, Qt: Session management error: None of the authentication protocols specified are supported No marker found, stopped after 1.00 MiB.
0
votes
0answers
81 views

Shared library problem: OpenMesh

I have a Qt app with OpenMesh dependency. I built the OpenMesh library from source: cmake ... make make install It installed to the /usr/local/lib/OpenMesh folder: libOpenMeshCored.a ...
0
votes
0answers
161 views

How to completely remove Qt environment?

How to completely remove Qt environment? I installed Qt Creator Integrated Development from the Ubuntu Software Center, then I compiled and installed Qt 4.8.6. There were few errors when I try to ...
0
votes
0answers
144 views

Configuration of $QTDIR

I installed Qt from ubuntu repository. I'm on Trusty. Now I use a another program who need $QTDIR but when I enter echo $QTDIR, the terminal output nothing. How to set up this path without ...
0
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34 views

Qt-> how to set ALT key active

Can someone please explain how to set the Alt key as active permanently? I'm trying to make an application for Ubuntu and I need to make it active. I want to add it to the code below in the if ...
0
votes
0answers
78 views

excel query in qt

I have a program to connect with excel file. my excel file contains usernames and passwords of users who has access Permission to application. in interface of the program i have two QlineEdit(one for ...
0
votes
0answers
40 views

Qt C++ windowMinimized no reaction on Ubuntu

Heloo all! Me and a friend are creating an app for linux, everyting works but the custom minimize button doesnt whant to work on Ubunutu 14.04, there is no reaction when presed clicked an so on. Any ...
0
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0answers
37 views

How do you change qt themes by hand?

I am running a light desktop with Fluxbox and trying not to install anything more than I absolutely have to. I was wondering how one would go about changing qt4 and qt5 themes by hand much like you ...