When I use
myButton->setCheckable(true);
There is -I don't know how to call it- a sort of grid :
Is it possible to not have this grid and here just my green background ?
Use the checked property:
QPushButton:checked{
background-color: ...
border: none;
}
Same applies for pressed if you want to alter that too.
Note: You can read all about the properties here (just search for QPushButton to find the properties that are part of the button. Removing the border seems to be necessary based on the documentation (otherwise the background colour might not be applied).
Related
I want user to select a theme which he wants to apply to the document.
So i have created a popup dialog which has multiple themes which are qradiobutton. But I want to display only icons and remove circle from the widget.
I have tried visible:hidden for the radio button but that didn't worked.
If you want to customize QRadioButton with style-sheets I suggest you check the reference documentation: https://doc.qt.io/qt-5/stylesheet-reference.html#qradiobutton-widget
You should also find useful the examples given in Qt documentation as it shows how to replace the check indicator by different images:
QRadioButton::indicator {
width: 13px;
height: 13px;
}
QRadioButton::indicator::unchecked {
image: url(:/images/radiobutton_unchecked.png);
}
QRadioButton::indicator:unchecked:hover {
image: url(:/images/radiobutton_unchecked_hover.png);
}
https://doc.qt.io/qt-5/stylesheet-examples.html#customizing-qradiobutton
If you do this yo can just use the indicator to display the icon and leave the QRadioButton label empty.
However, I have to warn you, depending on which QStyle you are using, it could happen that using style-sheets destroys completely the style of a component. A general example is: you are using a style where buttons have round corners, you use style-sheets to change the font of the button and as a result the button does not have round corners anymore. This is caused by incompatibilities between some QStyle and the style-sheet mechanism. If you do not want to make a multi platform app, it might not be an issue as you will use only one style, but if you make an multi platform app, you have to check every possible style you platform can have on the different platforms.
So if you want to have a QRadioButton without indicator and not use style-sheets, you can do it in C++ directly by subclassing QAbstractButton. Just make sure you set your class to be autoExclusive so that is will behave like a radio button.
would you try this? ( visible => visibility )
input[type="radio"] {
visibility: hidden;
}
or
input[type="radio"] {
display: none;
}
I'm facing this problem when styling an editable QComboBox:
I'm unable to change the color of the grey box inside the QComboBox...
Any idea how to change it just with a stylesheet?
Thank you
What about
QComboBox:editable {
background: white;
}
? I did not test it, but the reference seems good to me.
Edit
As of using Qt version 5.6.2 the provided change works as desired. No differently colored box inside the currently edited QComboBox.
This shoud work
YourCombobox->findChild<QLineEdit*>()->setStyleSheet("QLineEdit {background: green;}");
Previous line get the reference to the QLineEdit which is part of the QComboBox widget and applies the style sheet to it, not to the combobox.
I don't know if this could also work, if you want to try it and give a feedback..
YourCombobox->setStyleSheet("QLineEdit {background: green;}");
I have a JavaFX button that has been set as Default Button so the user can select it with the Enter key. Currently, it has a blue background:
But I'd like to make it look like a normal button:
I took a look at the JavaFX CSS Guide and it looks like there's only one feature to override (-fx-base).
But changing this feature has unpredictable effects—sometimes it eliminates the button's gradient; sometimes it makes the button transparent.
Is there a simple way to just get rid of the Default Button styling?
My guess is that you are looking in the wrong style sheet. The old default style sheet caspian.css was replaced with modena.css. So setting default value for -fx-base from modena.css should fix the issue:
.button:default {
-fx-base: #ececec;
}
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'm trying to create a QPushButton that's just got an icon and a constant background color.
So that I can swap out the icon when the user clicks it, without any other apparent effects (this is for a roll-up/roll-down feature). I've added an entry like this to my stylesheet:
QPushButton.ToggleButton {
background-color: #8af;
}
and set the button's class to match, and this does indeed give me the look I want, except that when I click on it the background color changes to a lighter blue, which I don't want. What am I missing?
Edit: I guess I should mention I'm using Qt 4.5 and PyQt 4.6 to do this...
I know people like using stylesheets, but in this situation I think it is just as easy to make a custom button. Define a class that inherits from QAbstractButton, and override the paint() method. In the paint method, fill the rect with your desired background color, and then paint the current icon on top. It might be slightly more complicated if you want the border around the button as well, but not a lot.
Alternately, you could also look at the roles for QPalette, specifically QPalette::Light and QPalette::Midlight, which might be used to adjust the color of the button when pressed.
Answer
Try giving the button an ID with QObject::setObjectName and then applying the style with #idSelector?
In Python the code would probably look something like this:
button = QPushButton(self)
button.setObjectName("ToggleButton")
and stylesheet like this:
#ToggleButton:pressed {
background-color: #8af;
}
Further reading
The QFriendFeed example application at Forum Nokia is using Qt style sheets heavily to customize the UI.
I'm guessing doing background-color: #8af !important; would be too obvious so I'm assuming that doesn't work. It's worth a try if you haven't done it yet.
Otherwise, as noted in this question, there are specific states you can style. Try setting the same background color for the pressed state:
QPushButton.ToggleButton:pressed { background-color: #8af; }
Sorry if I misunderstood. Hope that helps.
open the button's stylesheet in Qt designer and try this:
QPushButton:pressed {
image: url(/path/to/your/file/fileName.png);
}