Difference between revisions of "Going further with Dialog and Component"
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=Using Radio buttons= | =Using Radio buttons= | ||
| − | We want use radio button to select the increment or decrement. Here is a snapshot of our dialog : | + | Radio buttons are usually used to select one item in a small list. We want use radio button to select the increment or decrement. Here is a snapshot of our dialog : |
[[Image:CounterDialog2.png|center|thumb|600px|Our Second Counter Dialog]] | [[Image:CounterDialog2.png|center|thumb|600px|Our Second Counter Dialog]] | ||
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} | } | ||
</source> | </source> | ||
| + | As you can see only <code>increment()</code> and <code>decrement()</code> methods are checking what radiobutton is set. No event is fired when setting or cleared a radio button in this example. | ||
=This Document Home Page= | =This Document Home Page= | ||
Revision as of 14:28, 26 June 2009
In the previous chapter we use and program only two kinds of control in our dialog. We intend in this chapter to further and use a lot of control and then see how things work in this area. You cannot read this chapter befor reading the previous one.
We begin again with our counter.
Counter with Numeric Field
When we design the dialog working with our counter, we use two text controls for our numeric data. Because text controls are often used our preceding example is important, but it's time now to improve our design and use a numeric field control. Because the dialog aspect is unchanged we don't provide a snapshot of the dialog.
Have a look at com.sun.star.awt.XNumericField interface and see what can be done with this interface : only getvalue and setValue will be used in this section, but you can play with other methods.
We provide only the callHandlerMethod function method (see the previous chapter and also the corresponding com.sun.star.awt.XDialogEventHandler interface). Here is the corresponding code.
sal_Bool SAL_CALL MyCounterImpl::callHandlerMethod(const Reference< XDialog >& xDialog,const Any& EventObject,const OUString & MethodName ) throw(WrappedTargetException, RuntimeException ){ if (MethodName.equalsAscii("foo1")){//increment increment(); return sal_True; } if (MethodName.equalsAscii("foo2")){//decrement decrement(); return sal_True; } if (MethodName.equalsAscii("foo3")){ //setCount Reference< XControlContainer > xControlContainer(xDialog,UNO_QUERY); Reference< XControl > xControl=xControlContainer->getControl(OUString::createFromAscii("NumericField1")); Reference< XNumericField > xNumericField(xControl,UNO_QUERY); setCount((sal_Int32)xNumericField->getValue()); return sal_True; } if (MethodName.equalsAscii("foo4")){ //getCount Reference< XControlContainer > xControlContainer(xDialog,UNO_QUERY); Reference< XControl > xControl=xControlContainer->getControl(OUString::createFromAscii("NumericField2")); Reference< XNumericField > xNumericField(xControl,UNO_QUERY); xNumericField->setValue(getCount()); return sal_True; } return sal_False; }
The change are not important enough to be discussed deeply. We turn now to the radio button problem.
Using Radio buttons
Radio buttons are usually used to select one item in a small list. We want use radio button to select the increment or decrement. Here is a snapshot of our dialog :
For this problem the com.sun.star.awt.XRadioButton interface is your friend. We present now the corresponding code, and again with only the callHandlerMethod. Have a look at the previous chapter if you want remember you how it works.
sal_Bool SAL_CALL MyCounterImpl::callHandlerMethod(const Reference< XDialog >& xDialog,const Any& EventObject,const OUString & MethodName ) throw(WrappedTargetException, RuntimeException ){ if (MethodName.equalsAscii("foo1")){//increment Reference< XControlContainer > xControlContainer(xDialog,UNO_QUERY); Reference< XControl > xControl=xControlContainer->getControl(OUString::createFromAscii("OptionButton1")); Reference< XRadioButton > xRadioButton(xControl,UNO_QUERY); if (xRadioButton->getState()) m_nDelta=1; xControl=xControlContainer->getControl(OUString::createFromAscii("OptionButton2")); Reference< XRadioButton > xRadioButton2(xControl,UNO_QUERY); if (xRadioButton2->getState()) m_nDelta=5; xControl=xControlContainer->getControl(OUString::createFromAscii("OptionButton3")); Reference< XRadioButton > xRadioButton3(xControl,UNO_QUERY); if (xRadioButton3->getState()) m_nDelta=10; increment(); return sal_True; } if (MethodName.equalsAscii("foo2")){//decrement Reference< XControlContainer > xControlContainer(xDialog,UNO_QUERY); Reference< XControl > xControl=xControlContainer->getControl(OUString::createFromAscii("OptionButton1")); Reference< XRadioButton > xRadioButton(xControl,UNO_QUERY); if (xRadioButton->getState()) m_nDelta=1; xControl=xControlContainer->getControl(OUString::createFromAscii("OptionButton2")); Reference< XRadioButton > xRadioButton2(xControl,UNO_QUERY); if (xRadioButton2->getState()) m_nDelta=5; xControl=xControlContainer->getControl(OUString::createFromAscii("OptionButton3")); Reference< XRadioButton > xRadioButton3(xControl,UNO_QUERY); if (xRadioButton3->getState()) m_nDelta=10; decrement(); return sal_True; } if (MethodName.equalsAscii("foo3")){ //setCount Reference< XControlContainer > xControlContainer(xDialog,UNO_QUERY); Reference< XControl > xControl=xControlContainer->getControl(OUString::createFromAscii("NumericField1")); Reference< XNumericField > xNumericField(xControl,UNO_QUERY); setCount((sal_Int32)xNumericField->getValue()); return sal_True; } if (MethodName.equalsAscii("foo4")){ //getCount Reference< XControlContainer > xControlContainer(xDialog,UNO_QUERY); Reference< XControl > xControl=xControlContainer->getControl(OUString::createFromAscii("NumericField2")); Reference< XNumericField > xNumericField(xControl,UNO_QUERY); xNumericField->setValue(getCount()); return sal_True; } return sal_False; }
As you can see only increment() and decrement() methods are checking what radiobutton is set. No event is fired when setting or cleared a radio button in this example.
This Document Home Page
See also
- French version of this chapter
- Constructing Components
- The corresponding paragraph in Developer's Guide
- Generic UNO Interfaces for complex toolbar controls
- C++ and UNO tutorial
- Service Declaration
- Registering properties
- UNO tutorial
- UNO IDL
- Extensions Packager (BasicAddonBuilder from Paolo Mantovani)
- BASIC UNO Object Browser : You can see the corresponding code as a complex component.
- Minimal Java Component
- OOoBasic Guide
- Managing Dialogs in OOoBasic.
- Contextual Objects in OOoBasic
