<![CDATA[Specifying different iconsets for the same widget]]>@ <widget class="LedButton" name="m_Standby_btn1" >

 <property name="icon" >

   <iconset resource="VSMgui.qrc">:/images/images/whiteCircle_nt.png</iconset>

 </property>

    <property name="text" >

   <string>Standby--</string>

 </property>

     <property name="visible"> <bool>false--</bool> </property>

</widget>
@
I want to be able to display a different icon dynamically if this button is selected.
So, I am trying to create a button with 2 png files (such that any one can be used at any point of time)>
Is it possible to specify this in a UI file?

Or would I have to create two buttons each with a different png file?

Thanks

RS

]]>https://forum.qt.io/topic/16369/specifying-different-iconsets-for-the-same-widgetRSS for NodeTue, 13 Oct 2026 12:22:36 GMTTue, 01 May 2012 21:31:10 GMT60<![CDATA[Reply to Specifying different iconsets for the same widget on Wed, 09 May 2012 16:57:47 GMT]]>I tried qxoz's suggestion of adding the <normaloff> and <selectedon> tags but with this, no icon is generated. Here's how my UI file looks like: I even added a <normalon> tag just in case and that did not help either....

@@
<widget class="LedButton" name="m_Standby_btn" >
<property name="icon">
<iconset resource="VSMgui.qrc">
<normalon>:/images/images/whiteCircle_nt.png</normalon>
<normaloff>:/images/images/whiteCircle_nt.png</normaloff>
<selectedon>:/images/images/blueCircle_nt.png</selectedon>
</iconset>
</property>
<property name="text" >
<string>Standby</string>
</property>
<property name="visible"> <bool>true</bool> </property>
</widget>
@@

]]>https://forum.qt.io/post/138503https://forum.qt.io/post/138503Wed, 09 May 2012 16:57:47 GMT<![CDATA[Reply to Specifying different iconsets for the same widget on Wed, 09 May 2012 16:56:04 GMT]]>I tried qxoz's suggestion of adding the <normaloff> and <selectedon> tags but with this, no icon is generated. Here's how my UI file looks like: I even added a <normalon> tag just in case and that did not help either....

@@
<widget class="LedButton" name="m_Standby_btn" >
<property name="icon">
<iconset resource="VSMgui.qrc">
<normalon>:/images/images/whiteCircle_nt.png</normalon>
<normaloff>:/images/images/whiteCircle_nt.png</normaloff>
<selectedon>:/images/images/blueCircle_nt.png</selectedon>
</iconset>
</property>
<property name="text" >
<string>Standby</string>
</property>
<property name="visible"> <bool>true</bool> </property>
</widget>
@@

]]>https://forum.qt.io/post/138502https://forum.qt.io/post/138502Wed, 09 May 2012 16:56:04 GMT<![CDATA[Reply to Specifying different iconsets for the same widget on Wed, 02 May 2012 15:59:46 GMT]]>Thanks for the inputs.

I had tried the setIcon() solution and it works most of the time but I keep seeing the following 2 crashes once in a while and so I have decided to implement this dynamic Icon thing in the UI file now to avoid the crash.

This is how I had used the functions
@
// remove explicit reference to QPixmap to avoid the crash that happens
// sporadically
if (bSelected) {
setIcon(QIcon(QString::fromUtf8(":/images/images/whiteCircle_nt.png")));
} else {
setIcon(QIcon(QString::fromUtf8(":/images/images/blueCircle_nt.png")));
}
}
@
Please let me know if any of you have seen such intermittent crashes wen using setIcon() function.
@
Crash #1 Backtrace:
#0 0x0f89a2ac in QX11Info::visual () from /usr/lib/libQtGui.so.4
#1 0x0f8d192c in QPixmap::toImage () from /usr/lib/libQtGui.so.4
#2 0x0fa58918 in QCommonStyle::generatedIconPixmap () from /usr/lib/libQtGui.so.4
#3 0x0f8a3108 in QIcon::QIcon () from /usr/lib/libQtGui.so.4
#4 0x0f8a08d8 in QIcon::pixmap () from /usr/lib/libQtGui.so.4
@
OR
@
Crash #2 Backtrace:
#0 0x0f2f9e00 in memcpy () from /lib/tls/libc.so.6
#1 0x10166b90 in ?? ()
#2 0x0f521160 in QVectorData::malloc () from /usr/lib/libQtCore.so.4
#3 0x0f937e58 in operator<< () from /usr/lib/libQtGui.so.4
#4 0x0f96c170 in QRegion::copy () from /usr/lib/libQtGui.so.4
#5 0x0f96a178 in QRegion::QRegion () from /usr/lib/libQtGui.so.4
#6 0x0f96a87c in QRegion::QRegion () from /usr/lib/libQtGui.so.4
#7 0x0f96be30 in QRegion::unite () from /usr/lib/libQtGui.so.4
#8 0x0f9366ec in QRegion::operator+ () from /usr/lib/libQtGui.so.4
#9 0x0f936740 in QRegion::operator+= () from /usr/lib/libQtGui.so.4
#10 0x0f96e7a4 in QWidgetPrivate::drawWidget () from /usr/lib/libQtGui.so.4
#11 0x0f96f734 in QWidget::update () from /usr/lib/libQtGui.so.4
#12 0x0f96f7b8 in QWidget::update () from /usr/lib/libQtGui.so.4
#13 0x0f96f840 in QWidget::update () from /usr/lib/libQtGui.so.4
#14 0x0fad686c in QAbstractButton::setIcon () from /usr/lib/libQtGui.so.4
@

Edit: Please use @ signs around code sections; Andre

]]>https://forum.qt.io/post/137777https://forum.qt.io/post/137777Wed, 02 May 2012 15:59:46 GMT<![CDATA[Reply to Specifying different iconsets for the same widget on Wed, 02 May 2012 11:44:26 GMT]]>I'd use a style sheet for that.

]]>https://forum.qt.io/post/137753https://forum.qt.io/post/137753Wed, 02 May 2012 11:44:26 GMT<![CDATA[Reply to Specifying different iconsets for the same widget on Wed, 02 May 2012 11:29:55 GMT]]>Sorry i don't understood you, at first time.
In UI file you can specify this in following way:
@<property name="icon">
<iconset resource="res.qrc">
<normaloff>:/icon/Connect.png</normaloff>
<selectedon>:/icon/Disconnect.png</selectedon>:/icon/Connect.png</iconset>
</property>@

or with QtCreator's interface in widgets property window(icon->Normal, Active, Selected,Disabled).

]]>https://forum.qt.io/post/137754https://forum.qt.io/post/137754Wed, 02 May 2012 11:29:55 GMT<![CDATA[Reply to Specifying different iconsets for the same widget on Wed, 02 May 2012 11:12:36 GMT]]>You can use
@setIcon(QIcon(":/icon/SomeIcon.png"));@

and change icon by some SIGNAL

@setIcon(QIcon(":/icon/SomeOtherIcon.png"));@

]]>https://forum.qt.io/post/137750https://forum.qt.io/post/137750Wed, 02 May 2012 11:12:36 GMT