Custom Property On Custom Widget

[Ashutosh2k1]

ya and i want to give the custom(compound ) property to my custom widget . I have read somewhere that this could be possible only from QdesignerPropertySheet extension but i am not able to do this .

[Santosh Reddy]

The QDesignerPropertySheetExtension class allows you to manipulate a widget's properties which is displayed in Qt Designer's property editor. You should be proving the properties information in your QDesignerCustomWidgetInterface

[Ashutosh2k1]

Hi
Thanks For reply. I can manipulate widget property through QDesignerPropertySheetExtension But where i have to provide my property in QDesignerCustomWidgetInterface . Can u plz elaborate what u r saying

[Santosh Reddy]

Did you read this example ?

[Ashutosh2k1]

Hi
I have just read the example .I think The only place where i can provide the compound Property is domxml function .But my Compound Property is not coming on the widget property editor so what i am missing .

I am giving u some design what i am doing
I have created a CustomProp Class Its Plugin CustomPropPlugin
Exteansion Class Subclassed from QDesignerPropertySheetExtension and the factory class derived from QExtensionFactory Ok
Now In the initialize function of plugin i am getting the extension class of Qt designer and throught that i register the manager class
I have also implemented just the method of QDesginerPropertyExtension in my Extension Class
So am i missing something or doing something wrong

[Santosh Reddy]

How does your domXml() look?

[Ashutosh2k1]

return "<widget class=\"CustomWidgetPropertyShow\" name=\"customWidgetPropertyShow\">\n"
" <property name=\"geometry\">\n"
" <rect>\n"
" <x>0</x>\n"
" <y>0</y>\n"
" <width>100</width>\n"
" <height>100</height>\n"
" </rect>\n"
" </property>\n"
"</widget>\n";

Also if add something it will come as dynamic property .I have just checked with adding something but it gives the flavour of dynamic Property which i don't want .I wnat the custom struct to appear as static Property

[Santosh Reddy]

May be I asked a wrong question, we should be looking at Extension class, did you properly implement these

virtual QVariant	property ( int index ) const = 0
virtual QString	propertyGroup ( int index ) const = 0
virtual QString	propertyName ( int index ) const = 0

virtual QVariant	property ( int index ) const = 0
virtual QString	propertyGroup ( int index ) const = 0
virtual QString	propertyName ( int index ) const = 0

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[Ashutosh2k1]

Hi
I have not found very clear explanation of implementation of these function in the documenatation .so can provide me some stuff on this

[Santosh Reddy]

Most of the functions should be clear enough, provided you understand how Qt Designer works. What did you implement in the virtual functions of Extension class?

All these virtual functions should be implemented properly for the widget custom properties to be displayed in Qt Designer.

for example if your widget has 2 QString properties "PRO1", "PRO2" then implementation would like this,

int count() const { return 2; }
 
QVariant property(int index) const
{
    if(index == 0) return pro1;
    else if(index == 1) return pro2;
    else return QVariant;
}
 
QString propertyName(int index) const
{
    if(index == 0) return QString("PRO1");
    else if(index == 1) return QString("PRO2");
    else return QString;
}

int count() const { return 2; }

QVariant property(int index) const
{
    if(index == 0) return pro1;
    else if(index == 1) return pro2;
    else return QVariant;
}

QString propertyName(int index) const
{
    if(index == 0) return QString("PRO1");
    else if(index == 1) return QString("PRO2");
    else return QString;
}

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note you need to implement all the functions properly..

[Ashutosh2k1]

Hi
very very Thanks. I think that now i can implement the Custom (Compound Property ) On the Widget .

[Ashutosh2k1]

Hi,
If I implement my own property sheet extension so in this case i will miss the default property editor given by the widget or the qt designer . But i want to use the both property editor the one provided by the QT designer and other which is written by me So is there any way