I am trying to set the size of a radio button indicator with a style sheet like so:
QRadioButton::indicator {
width: 25px;
height: 25px;
}
In the designer, this shows up correctly. However, when I actually run the app the indicators revert to the normal size. All other entries in the style sheet show up correctly at runtime. Why is this portion of the stylesheet working in the designer but not at runtime? How can I fix it? There are no other stylesheets in my app that that affect radio buttons.
How the radio button appears in designer:
How the radio button appears at runtime:
The sizing got weird, sorry. But you can clearly see that the indicator is much larger in relation to the text in the pic taken from the designer.
There are multiple things you need to look for when using designer.
Now to quick check.
//Add this lines and try again
QRadioButton *obj = new QRadioButton()
obj->setObjectName("test");
//If your using qss/css file for styling things...
#test QRadioButton::indicator {
width: 25px;
height: 25px;
}
Few more inputs...
Font size of text attached to QRadioButton also check changing by some more pixel and check what sort of changes shown to your widget.
Hope this will help you.
I'm designing this for a touchscreen, so the scrollbar handles need to be extra big, but so far, this is all I can get:
In the constructor of the list widget:
myScrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
myScrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
myScrollArea->verticalScrollBar()->setFixedWidth(pitch_height);
myScrollArea->setWidget(this);
pitch_height is the size of the icons. I figured that'd be about right for the scrollbar too. Something roughly like this:
Use style sheets to modify scroll bar
QScrollBar:vertical {
width: 100px;
}
Relevant documentation:
Customizing QScrollBar
Qt Style Sheets Reference
It is possible to configure the QWebView to work with "Elide" disabled (equivalent to Qt::ElideNone)?
The "Elide" graphic texts being compressed (elieded) to fit inside the select.
Example:
I wish the entire text to be displayed when clicked on comobox (selectbox). Is it possible?
Thanks.
[edit]
I think it may be the way the styleSheet (qt):
QComboBox QAbstractItemView {
...
}
I just do not know which property to use styleSheet disable "elited".
Maybe something like this:
QComboBox QAbstractItemView {
elided: none;
...or...
elide: none;
}
Anyone know a link with all properties stylesheets used in QT (I searched but did not find)?
[edit 2]
I tried white-space: pre; and white-space: nowrap; that seems the most logical, but does not work with QAbstractItemView, will be the selector is another?
You can change the textElideMode property by adding a rule QComboBox QAbstractItemView { qproperty-textElideMode: ElideNone } (See Style Sheet Syntax - Setting QObject properties) but it will only clip the text on the right without extending the drop-down box.
According to the code source, the list view adjust its size to its content when it is displayed as a popup which is done by adding this in the stylesheet:
QComboBox {
combobox-popup: true;
// To make room for the possible scrollbar
// (the value has to match the scrollbar width of the current style/platform)
padding-right: 20px;
}
Outside that popup mode, the width of the drop-down box is taken from the list view minimum size (or from the min-width css property of the QAbstractItemView), but there doesn't seem to be a way, with css only, to automatically adjust the size of the drop-down box to the content of the list.
I'm pretty new to this Qt thing and its whole stylesheet system. My background of HTML/CSS helps a little to understand the system, but a lot of things just happens for no apparent reason....or don't happen.
Anyway, the mystery of the HLINE and the VLINE and how to change the lines' color is just a mystery for me. I learned from other questions and various fora that it's linked to the QFrame elements. And I can change the color of the line if I just use something like
QFrame
{
color: red;
}
But this of course changes the color of tons of other things that uses a QFrame as well. I could of course go into the HLINE element and put color: red; in there and that works fine, but my app requires that I put everything in a single stylesheet that gets loaded into the app. So styling individual elements is not an option.
A solution would look something like
QFrame HLine, QFrame VLine
{
color: red;
}
QFrame[frameShape="4"] /* QFrame::HLine == 0x0004 */
{
color: red;
}
QFrame[frameShape="5"] /* QFrame::VLine == 0x0005 */
{
color: green;
}
HLine and VLine are tricky to style. It's worth taking a look at the "Detailed Description" section of the documentation. For a quick fix, I found that this set of rules allows customizing the appearance of such lines via stylesheet in a reliable and relatively clean manner:
QFrame[frameShape="4"],
QFrame[frameShape="5"]
{
border: none;
background: red;
}
This works regardless of the frameShadow property, which otherwise affects their appearance and the effect of style rules. Keep in mind that the width of the lines are not 1px by default -- this can be changed using the min-width, max-width, min-height or max-height properties, as appropriate.
For a more detailed overview of my findings, read along.
Most QFrames have the QFrame::Plain frameShape by default, but HLine and VLine's default frameShape is QFrame::Sunken. This means that they are not really lines, but thin boxes that contain a mid-line that's used to provide the 3D effect. From the documentation:
The mid-line width specifies the width of an extra line in the middle of the frame, which uses a third color to obtain a special 3D effect. Notice that a mid-line is only drawn for Box, HLine and VLine frames that are raised or sunken.
If you set the frameShape to Plain, this midline is still visible, and can be styled with the color property (note: that's not a background-color or border-color!)
But this doesn't work for a HLine/VLine that's left with the default Sunken appearance. One way to fix this could be to set separate styles for Plain and Sunken QFrames by using attribute selectors with the decimal values of the property enums (which are described in the documentation in hehadecimal), like so:
/* Reference (from doc.qt.io/qt-5/qframe.html#types):
* - frameShape[4] --> QFrame::HLine = 0x0004
* - frameShape[5] --> QFrame::VLine = 0x0005
* - frameShadow[16] --> QFrame::Plain = 0x0010 (default for most widgets)
* - frameShadow[48] --> QFrame::Sunken = 0x0030 (default for HLine/VLine)
*/
QFrame[frameShape="4"][frameShadow="16"],
QFrame[frameShape="5"][frameShadow="16"]
{
...
}
QFrame[frameShape="4"][frameShadow="48"],
QFrame[frameShape="5"][frameShadow="48"]
{
...
}
but since the styles that work for HLine/VLine with QFrame::Sunken also work for those with QFrame::Plain, it's usually a waste to do so. I show them above for educational value only about how to use attribute selectors.
The best approach is to treat the QFrame as the box that it is, and either (1) set border-top or border-right coupled with a max-height: 0px (or max-width for a VLine), to ensure the inside of the box doesn't take up space in the layout; or (2) use a background color coupled with border: none (in which case, max-height/width should be 1 or larger, otherwise the QFrame is invisible). The latter is the solution I'd recommend, as shown in the first code block above.
Hope this helps!
According to QDarkStyleSheet issue, You could use:
QFrame[width="3"], QFrame[height="3]
These selectors, they seem to work cross-platform, and they are unlikely to change.
Probably better than using enum values as ints, as they are likely to change with Qt versions, and line styling are not, as they fulfill certain requirements.
but my app requires that i put everything in a single stylesheet that
gets loaded into the app.
You can use Conflict Resolution. Suppose that you have a QMainWindow object with lots of widgets on it . Set these style sheets for the maindionw style sheet :
QLabel#label{
background-color: rgb(255, 170, 255);
}
QPushButton#pushButton{
color: rgb(0, 0, 255);
}
QFrame#line{
background-color: rgb(0, 170, 255);
}
The first css just changes a QLabel name label on your mainwindow and set its back color to rgb(255, 170, 255). The next will change text color of a QPushButton named pushButton to (0,0,255);. The third one change property of a line.Lines are just a QFrame.
So the solution that I can offer is to place your css in a file and then load this file using QFile and QTextStream and then set the contents of the file for css of your main winodw or main widget using setStyleSheet ( const QString & styleSheet ) function. or If you are using creator just right click on your main window and select change stylesheet and then paste your css. But bear in mind that you should use conflict resolution.
You can leave Qt's hlines and build up your own very easy. For frames you want looks like hline add property "class" as "HLine" (for example), in designer or in c++ code:
frame->setProperty("class", "HLine")
.
Then, you can define in main view's or in global app stylesheet something like this:
QFrame.HLine {
border: none;
border-bottom: 2px solid red;
}
and you will get horizontal two pixels red line.
I have a QLabel with a Qt stylesheet that sets a dark background:
QLabel {
background: black;
color: white;
}
This works fine until I add text with an embedded URL and set the Qt::TextFormat to Qt::RichText. The link displays as the default dark blue, which is hard to read on a dark background.
I've tried customising it via a stylesheet such as:
a { color: white; }
QLabel!visited { color: white; }
but this doesn't have any effect. The one thing that does seem to work is changing the application's QPalette:
QPalette newPal(qApp->palette());
newPal.setColor(QPalette::Link, Qt::white);
newPal.setColor(QPalette::LinkVisited, Qt::white);
qApp->setPalette(newPal);
However this requires the colour to be hardcoded. Is there any way I can set the colour from a stylesheet instead?
EDIT:
I've discovered a further problem with customising the palette. If I want to just modify the palette of my widget (substituting widget for qApp in the sample above) then this doesn't work. I don't want to affect all the other QLabels in the app, so how do I limit the palette changes to this widget?
One way is to add style="color: whatever" or a class to the inner <span> of the link. I haven't figured out yet how to apply this to the whole application but it's a good start.
I've had little success explicitly setting the QPalette -- it works if you set it for the entire application, but not if you set it in the widget. In the end though, the easiest thing for what I needed to do was use a QTextBrowser instead which supports a subset of HTML. I could then override the colour of links using a regular CSS stylesheet:
QTextBrowser browser;
// IMPORTANT! - set the stylesheet before the content
browser->document()->setDefaultStyleSheet("a {color: white; }");
browser->setText(html);
Short answer is no. Recently I had to do this.
QLabel!visited doesn't work because Qt doesn't track whether QLabel were visited or not.
QLabel { color: ... } doesn't work for links. Can't find why but all I found is a suggestion to use QPallete in this case.
You can set the color tag in the HTML to
{ color: inherit; }