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/*******************************************************************************
 * Copyright (c) 2014 Wind River Systems, Inc. and others. All rights reserved.
 * This program and the accompanying materials are made available under the terms
 * of the Eclipse Public License v1.0 which accompanies this distribution, and is
 * available at http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Wind River Systems - initial API and implementation
 *******************************************************************************/
package org.eclipse.tcf.internal.cdt.ui.breakpoints;

import org.eclipse.cdt.debug.core.model.ICBreakpoint;
import org.eclipse.cdt.debug.internal.ui.breakpoints.CBreakpointPreferenceStore;
import org.eclipse.cdt.debug.ui.breakpoints.ICBreakpointContext;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.preference.PreferenceStore;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.dialogs.PropertyPage;

/**
 * Property page to define the scope of a breakpoint.
 */
@SuppressWarnings("restriction")
public class TCFBreakpointThreadFilterPage extends PropertyPage {

    private TCFThreadFilterEditor fThreadFilterEditor;
    private TCFBreakpointScopeExtension fFilterExtension;

    @Override
    protected Control createContents(Composite parent) {
        BreakpointScopeCategory category = getScopeCategory();
        if (category != null) {
            TCFBreakpointScopeExtension filterExtension = getFilterExtension();
            filterExtension.setPropertiesFilter(category.getFilter());
            filterExtension.setRawContextIds(category.getContextIds());
        }

        noDefaultAndApplyButton();
        Composite fieldEditorComposite = new Composite(parent, SWT.NONE);
        fieldEditorComposite.setLayout( new GridLayout(1, false));
        createThreadFilterEditor(fieldEditorComposite);
        setValid(true);
        return fieldEditorComposite;
    }

    protected ICBreakpoint getBreakpoint() {
        if (getElement() instanceof ICBreakpointContext) {
            return ((ICBreakpointContext)getElement()).getBreakpoint();
        }
        return (ICBreakpoint) getElement().getAdapter(ICBreakpoint.class);
    }

    public IPreferenceStore getPreferenceStore() {
        IAdaptable element = getElement();
        if (element instanceof ICBreakpointContext) {
            return ((ICBreakpointContext)element).getPreferenceStore();
        }
        return getContainer().getPreferenceStore();
    }

    protected BreakpointScopeCategory getScopeCategory() {
        if (getElement() instanceof BreakpointScopeCategory) {
            return (BreakpointScopeCategory)getElement();
        }
        return null;
    }

    protected TCFBreakpointScopeExtension getFilterExtension() {
        if (fFilterExtension != null) return fFilterExtension;

        fFilterExtension = new TCFBreakpointScopeExtension();
        BreakpointScopeCategory category = getScopeCategory();
        if (category != null) {
            fFilterExtension.initialize(new PreferenceStore());
            fFilterExtension.setPropertiesFilter(category.getFilter());
            fFilterExtension.setRawContextIds(category.getContextIds());
        } else {
            fFilterExtension.initialize(getPreferenceStore());
        }
        return fFilterExtension;
    }

    protected void createThreadFilterEditor(Composite parent) {
        fThreadFilterEditor = new TCFThreadFilterEditor(parent, this);
    }

    protected TCFThreadFilterEditor getThreadFilterEditor() {
        return fThreadFilterEditor;
    }

    @Override
    public boolean performCancel() {
        IPreferenceStore store = getPreferenceStore();
        if (store instanceof CBreakpointPreferenceStore) {
            ((CBreakpointPreferenceStore)store).setCanceled(true);
        }
        return super.performCancel();
    }

    @Override
    public boolean performOk() {
        doStore();
        return super.performOk();
    }

    /**
     * Stores the values configured in this page.
     */
    protected void doStore() {
        fThreadFilterEditor.doStore();
        BreakpointScopeCategory scopeCategory = getScopeCategory();
        if (scopeCategory != null) {
            TCFBreakpointScopeExtension filterExtension = getFilterExtension();
            scopeCategory.setFilter(filterExtension.getPropertiesFilter(), filterExtension.getRawContextIds());
        }
    }

    @Override
    public void setVisible(boolean visible) {
        if (visible) {
            fThreadFilterEditor.setInitialCheckedState();
            fThreadFilterEditor.setupScopeExpressionCombo();
        } else {
            doStore();
        }
        super.setVisible(visible);
    }
}

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