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Thread: change color QPushButton Previous post methods not working Qt 5.4.1 VS 2013 Windows 7

  1. #1
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    Default change color QPushButton Previous post methods not working Qt 5.4.1 VS 2013 Windows 7

    I've looked at all the previous posts on how to change the color of a button that I could search and find, but they don't seem to work. I'm using Qt 5.4.1 VS 2013 and Windows 7. I'm trying to change the color of a button to green when checked. I've tried changing the color of QPalette::Button
    Qt Code:
    1. OnButtonToggled(bool bChecked)
    2. {
    3. if(bChecked)
    4. {
    5. QPalette pal = button->palette();
    6. pal.setColor(QPalette::Button, Qt::green);
    7. button->setAutoFillBackground(true);
    8. button->setPalette(pal);
    9. button->update();
    10. }
    11. }
    To copy to clipboard, switch view to plain text mode 
    All this does is give me a green border around the button.
    Palette.jpg

    I also tried changing the brush of QPallete::Button
    Qt Code:
    1. OnButtonToggled(bool bChecked)
    2. {
    3. if(bChecked)
    4. {
    5. QPalette pal = button->palette();
    6. pal.setBrush(QPalette::Button, QBrush(Qt::green));
    7. button->setAutoFillBackground(true);
    8. button->setPalette(pal);
    9. button->update();
    10. }
    11. }
    To copy to clipboard, switch view to plain text mode 
    but I get the same thing.

    if I change the style sheet
    Qt Code:
    1. button->setStyleSheet("background-color:green;");
    To copy to clipboard, switch view to plain text mode 
    it changes to a squared off button instead of the rounded button it used to be, which means it no longer matches all the other buttons in the window.
    StyleSheet.jpg
    To be honest, I don't understand why the palette option doesn't work. In all the previous posts I've read, that's what people did. If I remember right, I needed to change the color of a button a couple of years ago, and the palette method is how I did it. I was using Qt 4.3.1 and Windows XP at that time though.

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    Default Re: change color QPushButton Previous post methods not working Qt 5.4.1 VS 2013 Windo

    You might be running into this (from the Qt Style Sheets Reference):

    QPushButton
    Supports the box model. Supports the :default, :flat, :checked pseudo states.
    For QPushButton with a menu, the menu indicator is styled using the ::menu-indicator subcontrol. Appearance of checkable push buttons can be customized using the : open and : closed pseudo-states.
    Warning: If you only set a background-color on a QPushButton, the background may not appear unless you set the border property to some value. This is because, by default, the QPushButton draws a native border which completely overlaps the background-color. For example,

    QPushButton { background-color: red; border: none; }

    See Customizing QPushButton for an example.
    So try setting the border as well.
    <=== The Great Pumpkin says ===>
    Please use CODE tags when posting source code so it is more readable. Click "Go Advanced" and then the "#" icon to insert the tags. Paste your code between them.

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    Default Re: change color QPushButton Previous post methods not working Qt 5.4.1 VS 2013 Windo

    My problem was I had no clue on how to set up style sheets. In the help I stumbled across "Qt Style Sheets Reference" which told me the syntax I needed and what it did, like "border-radius" to round the corners. I didn't know that border-radius existed or what it did. I didn't know what to call anything so that I could set it. I found it there. It's a great reference, you just have to find it. I didn't think finding it was all that easy.

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    Default Re: change color QPushButton Previous post methods not working Qt 5.4.1 VS 2013 Windo

    Quote Originally Posted by TonyInSoMD View Post
    My problem was I had no clue on how to set up style sheets. In the help I stumbled across "Qt Style Sheets Reference" which told me the syntax I needed and what it did, like "border-radius" to round the corners. I didn't know that border-radius existed or what it did. I didn't know what to call anything so that I could set it. I found it there. It's a great reference, you just have to find it. I didn't think finding it was all that easy.
    BTW, you have to scroll down the page some to get to the list of properties

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