SWT文本小部件的清除状态

Question

I have this function :

public static void changeState(Text control,final int style)
{   
    if (SWT.ENABLED == (style & SWT.ENABLED)) {
        MyService.setState(control, SWT.ENABLED);

    }
    if (SWT.DISABLED == (style & SWT.DISABLED)) {
        MyService.setState(control, SWT.DISABLED);

    }
    if(SWT.READ_ONLY == (style & SWT.READ_ONLY)){
        MyService.setState(control, SWT.READ_ONLY);
    }
}

I want to clear the current state of the widget before setting another state to it.

I made a text object for which I set the state to inactive and after this I tried to set it to read_only but it didn't work and that's why I am trying to make a function which clears the current state in order to be able to change states for the same object.

How should I do this?

Maybe there is some function which does this but I couldn't find one.

Answer 1

There are no such flags as SWT.ENABLED or SWT.DISABLED .

You enable/disable a control using

control.setEnabled(boolean);

You change the read only state of a Text control using

control.setEditable(boolean);

Note that most other style bits cannot be changed once a control has been created.