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UiFlagAttributeNode.javaAPI DocAndroid 1.5 API12364Wed May 06 22:41:10 BST 2009com.android.ide.eclipse.editors.uimodel

UiFlagAttributeNode

public class UiFlagAttributeNode extends UiTextAttributeNode
Represents an XML attribute that is defined by a set of flag values, i.e. enum names separated by pipe (|) characters. Note: in Android resources, a "flag" is a list of fixed values where one or more values can be selected using an "or", e.g. "align='left|top'". By contrast, an "enum" is a list of fixed values of which only one can be selected at a given time, e.g. "gravity='right'".

This class handles the "flag" case. The "enum" case is done using {@link UiListAttributeNode}.

Fields Summary
Constructors Summary
public UiFlagAttributeNode(com.android.ide.eclipse.editors.descriptors.FlagAttributeDescriptor attributeDescriptor, UiElementNode uiParent)

        super(attributeDescriptor, uiParent);
Methods Summary
public voidcreateUiControl(org.eclipse.swt.widgets.Composite parent, org.eclipse.ui.forms.IManagedForm managedForm)

        setManagedForm(managedForm);
        FormToolkit toolkit = managedForm.getToolkit();
        TextAttributeDescriptor desc = (TextAttributeDescriptor) getDescriptor();

        Label label = toolkit.createLabel(parent, desc.getUiName());
        label.setLayoutData(new TableWrapData(TableWrapData.LEFT, TableWrapData.MIDDLE));
        SectionHelper.addControlTooltip(label, DescriptorsUtils.formatTooltip(desc.getTooltip()));

        Composite composite = toolkit.createComposite(parent);
        composite.setLayoutData(new TableWrapData(TableWrapData.FILL_GRAB, TableWrapData.MIDDLE));
        GridLayout gl = new GridLayout(2, false);
        gl.marginHeight = gl.marginWidth = 0;
        composite.setLayout(gl);
        // Fixes missing text borders under GTK... also requires adding a 1-pixel margin
        // for the text field below
        toolkit.paintBordersFor(composite);
        
        final Text text = toolkit.createText(composite, getCurrentValue());
        GridData gd = new GridData(GridData.FILL_HORIZONTAL);
        gd.horizontalIndent = 1;  // Needed by the fixed composite borders under GTK
        text.setLayoutData(gd);
        final Button selectButton = toolkit.createButton(composite, "Select...", SWT.PUSH);
        
        setTextWidget(text);
        
        selectButton.addSelectionListener(new SelectionAdapter() {
            @Override
            public void widgetSelected(SelectionEvent e) {
                super.widgetSelected(e);

                String currentText = getTextWidgetValue();
                
                String result = showDialog(selectButton.getShell(), currentText);
                
                if (result != null) {
                    setTextWidgetValue(result);
                }
            }
        });
public java.lang.String[]getPossibleValues(java.lang.String prefix)
Get the flag names, either from the initial names set in the attribute or by querying the framework resource parser. {@inheritDoc}

        String attr_name = getDescriptor().getXmlLocalName();
        String element_name = getUiParent().getDescriptor().getXmlName();
        
        String[] values = null;
        
        if (getDescriptor() instanceof FlagAttributeDescriptor &&
                ((FlagAttributeDescriptor) getDescriptor()).getNames() != null) {
            // Get enum values from the descriptor
            values = ((FlagAttributeDescriptor) getDescriptor()).getNames();
        }

        if (values == null) {
            // or from the AndroidTargetData
            UiElementNode uiNode = getUiParent();
            AndroidEditor editor = uiNode.getEditor();
            AndroidTargetData data = editor.getTargetData();
            if (data != null) {
                values = data.getAttributeValues(element_name, attr_name);
            }
        }
        
        return values;
public java.lang.StringshowDialog(org.eclipse.swt.widgets.Shell shell, java.lang.String currentValue)
Shows a dialog letting the user choose a set of enum, and returns a string containing the result.

        FlagSelectionDialog dlg = new FlagSelectionDialog(
                shell, currentValue.trim().split("\\s*\\|\\s*")); //$NON-NLS-1$
        dlg.open();
        Object[] result = dlg.getResult();
        if (result != null) {
            StringBuilder buf = new StringBuilder();
            for (Object name : result) {
                if (name instanceof String) {
                    if (buf.length() > 0) {
                        buf.append("|"); //$NON-NLS-1$
                    }
                    buf.append(name);
                }
            }
            
            return buf.toString();
        }
        
        return null;