How to change background color when hover?

mrjj

@lqsa
Hi
Only one widget will get the hover event.
It kinda sounds like you expect the children of the widget to also do hover effect when
parent does.
Anyway, If plan is just to paint the background of AttachWidget and let the others be transparent
make sure to turn off
alt text
As that affect if u can see parent widget
(on)

(off)

lqsa

Yes, i would like an hover effect in all the children.

I put AttachWidget with the styleSheet = background:#e5f1fb. On the editor appears the color, when run, no.

mrjj

@lqsa

well only one widget hover at a time as hover.
so unless you make sure the other are transparent the background is
not visible through them.

lqsa

AttachWidget with the styleSheet = background:#e5f1fb
labelName with the styleSheet = background:transparent
imageType with the styleSheet = background:transparent
widgetClose with the styleSheet = background:transparent

The same, no appears the background.

mrjj

@lqsa
Try to not give then any stylesheet besides AttachWidget
and make sure all have unchecked in autoFillbackground

alt text

lqsa

Only AttachWiget with the styleSheet property.

Now appears the background color, but when I put a white color to its parent, only paints the labelName background.

mrjj

@lqsa
But if you assign stylesheet to both parent and also
AttachWiget it might not do as you think.

How does parent style sheet look ?

lqsa

I have a widget container with nothing inside, only the backgroud-color white (styleSheet = background-color:#FFFFFF).

By code, I create the AttachWidget and append to the container. Why AttachWidget hasn't all its area with the backgroud specified on its styleSheet property?

mrjj

@lqsa
Hmm it should.
Works for me doing

void MainWindow::on_pushButton_2_released()
{
    auto w= new QWidget;
    w->setStyleSheet(":hover{background:#e5f1fb}");
    ui->horizontalLayout->addWidget(w);
}

where horizontalLayout is inside widget with white background
alt text

lqsa

Please, could you test with the AttachWidget? It has another widgets inside it.

This is the .ui file:

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>AttachWidget</class>
 <widget class="QWidget" name="AttachWidget">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>500</width>
    <height>38</height>
   </rect>
  </property>
  <property name="maximumSize">
   <size>
    <width>16777215</width>
    <height>38</height>
   </size>
  </property>
  <layout class="QHBoxLayout" name="horizontalLayout_2">
   <property name="spacing">
    <number>0</number>
   </property>
   <property name="leftMargin">
    <number>2</number>
   </property>
   <property name="topMargin">
    <number>2</number>
   </property>
   <property name="rightMargin">
    <number>2</number>
   </property>
   <property name="bottomMargin">
    <number>2</number>
   </property>
   <item>
    <widget class="QLabel" name="imageType">
     <property name="minimumSize">
      <size>
       <width>32</width>
       <height>32</height>
      </size>
     </property>
     <property name="maximumSize">
      <size>
       <width>32</width>
       <height>32</height>
      </size>
     </property>
     <property name="styleSheet">
      <string notr="true">background-color:transparent</string>
     </property>
     <property name="pixmap">
      <pixmap resource="../../resources.qrc">:/views/subject/description.png</pixmap>
     </property>
    </widget>
   </item>
   <item>
    <spacer name="horizontalSpacer">
     <property name="orientation">
      <enum>Qt::Horizontal</enum>
     </property>
     <property name="sizeType">
      <enum>QSizePolicy::Fixed</enum>
     </property>
     <property name="sizeHint" stdset="0">
      <size>
       <width>5</width>
       <height>20</height>
      </size>
     </property>
    </spacer>
   </item>
   <item>
    <layout class="QVBoxLayout" name="verticalLayoutName">
     <item>
      <widget class="QLabel" name="labelName">
       <property name="styleSheet">
        <string notr="true">background-color:transparent</string>
       </property>
       <property name="text">
        <string>?</string>
       </property>
       <property name="textFormat">
        <enum>Qt::PlainText</enum>
       </property>
      </widget>
     </item>
    </layout>
   </item>
   <item>
    <widget class="QWidget" name="widgetClose" native="true">
     <property name="minimumSize">
      <size>
       <width>20</width>
       <height>0</height>
      </size>
     </property>
     <property name="maximumSize">
      <size>
       <width>20</width>
       <height>16777215</height>
      </size>
     </property>
     <property name="styleSheet">
      <string notr="true">background-color:transparent</string>
     </property>
     <widget class="QPushButton" name="buttonClose">
      <property name="geometry">
       <rect>
        <x>8</x>
        <y>0</y>
        <width>12</width>
        <height>12</height>
       </rect>
      </property>
      <property name="minimumSize">
       <size>
        <width>12</width>
        <height>12</height>
       </size>
      </property>
      <property name="maximumSize">
       <size>
        <width>12</width>
        <height>12</height>
       </size>
      </property>
      <property name="font">
       <font>
        <pointsize>5</pointsize>
       </font>
      </property>
      <property name="styleSheet">
       <string notr="true">#buttonClose{background-color: red;color:white;border:none}#buttonClose:hover{background-color:#EF5350}</string>
      </property>
      <property name="text">
       <string notr="true">❌</string>
      </property>
      <property name="flat">
       <bool>true</bool>
      </property>
     </widget>
    </widget>
   </item>
  </layout>
 </widget>
 <resources>
  <include location="../../resources.qrc"/>
 </resources>
 <connections/>
</ui>

puss_destroyer

I solved this problem with morph into QWidget, right click on verticalLayoutName and morph it. Then set Attach Widget :hover color.