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SnapshotFlatProfilePanel.java

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package org.netbeans.lib.profiler.ui.cpu;

import org.netbeans.lib.profiler.results.cpu.CPUResultsSnapshot;
import org.netbeans.lib.profiler.results.cpu.FlatProfileContainer;
import org.netbeans.lib.profiler.ui.UIUtils;
import org.netbeans.lib.profiler.ui.components.FilterComponent;
import java.awt.image.BufferedImage;


/**
 * A display containing a flat profile (always appears together with CCT)
 *
 * @author Misha Dmitriev
 * @author Ian Formanek
 * @author Jiri Sedlacek
 */
00057 public class SnapshotFlatProfilePanel extends FlatProfilePanel implements ScreenshotProvider {
    //~ Instance fields ----------------------------------------------------------------------------------------------------------

    private CPUResultsSnapshot snapshot;

    //~ Constructors -------------------------------------------------------------------------------------------------------------

    public SnapshotFlatProfilePanel(CPUResUserActionsHandler actionsHandler) {
        this(actionsHandler, null);
    }

    public SnapshotFlatProfilePanel(CPUResUserActionsHandler actionsHandler, CPUSelectionHandler selectionHandler) {
        super(actionsHandler, selectionHandler);
    }

    //~ Methods ------------------------------------------------------------------------------------------------------------------

    public BufferedImage getCurrentViewScreenshot(boolean onlyVisibleArea) {
        if (resTable == null) {
            return null;
        }

        if (onlyVisibleArea) {
            return UIUtils.createScreenshot(jScrollPane);
        } else {
            return UIUtils.createScreenshot(resTable);
        }
    }

    /**
     * This method is supposed to be used for displaying data obtained in a snapshot. threadId is either an actual
     * threadId >= 0, or -1 to mean "display data for all threads". When data is initialized in this way, all operations
     * such as switching views (aggregation level), obtaining reverse call graph, going to method's source, are allowed.
     */
00091     public void setDataToDisplay(CPUResultsSnapshot snapshot, int threadId, int view) {
        this.snapshot = snapshot;
        this.currentView = view;
        this.threadId = threadId;
        this.flatProfileContainer = null;
        collectingTwoTimeStamps = snapshot.isCollectingTwoTimeStamps();
    }

    public String getDefaultViewName() {
        return "cpu-hotspots";
    }

    public CPUResultsSnapshot getSnapshot() {
        return snapshot;
    }

    public boolean fitsVisibleArea() {
        return !jScrollPane.getVerticalScrollBar().isEnabled();
    }

    protected String[] getMethodClassNameAndSig(int methodId, int currentView) {
        return snapshot.getMethodClassNameAndSig(methodId, currentView);
    }

    protected void obtainResults() {
        if (snapshot != null) {
            flatProfileContainer = snapshot.getFlatProfile(threadId, currentView);
        }

        // If a now-inapplicable setting remained from previous run, reset it
        if ((snapshot == null) || (!collectingTwoTimeStamps && (sortBy == FlatProfileContainer.SORT_BY_SECONDARY_TIME))) {
            sortBy = FlatProfileContainer.SORT_BY_TIME;
        }

        // Reinit bar max value here - operations necessary for correct bar representation of results
        flatProfileContainer.filterOriginalData(FilterComponent.getFilterStrings(filterString), filterType, valueFilterValue);
        flatProfileContainer.sortBy(sortBy, sortOrder); // This will actually create the below-used percent()
                                                        // thing for proper timer

        setResultsAvailable(true);
    }

    protected void showReverseCallGraph(int threadId, int methodId, int currentView, int sortingColumn, boolean sortingOrder) {
        actionsHandler.showReverseCallGraph(snapshot, threadId, methodId, currentView, sortingColumn, sortingOrder);
    }

    protected boolean supportsReverseCallGraph() {
        return true;
    }

    protected boolean supportsSubtreeCallGraph() {
        return false;
    }

    protected void updateResults() {
        if (threadId < -1) {
            return; // -1 is reserved for all threads merged flat profile; non-negative numbers are actual thread ids
        }

        int currentColumnCount = collectingTwoTimeStamps ? 5 : 4;

        if (columnCount != currentColumnCount) {
            initColumnsData();
        } else {
            if (resTable != null) {
                saveColumnsData();
            }
        }

        flatProfileContainer.sortBy(sortBy, sortOrder);

        jScrollPane.setViewportView(resTable);
        jScrollPane.getViewport().setBackground(resTable.getBackground());
    }
}

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