Commit 65a6cf05 authored by Jakub Nezval's avatar Jakub Nezval Committed by Radek Ošlejšek
Browse files

Interactive histogram for 3D heatmaps

parent 0aa4f36f

GUI/src/main/java/cz/fidentis/analyst/gui/elements/histogram/BucketHistogram.java

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package cz.fidentis.analyst.gui.elements.histogram;



import java.util.ArrayList;

import java.util.Collection;

import java.util.Collections;

import java.util.List;



/**

 * Class that implements bucket histogram.

 *

 * @author Jakub Nezval

 */

public class BucketHistogram {

    private final int bucketCount;

    

    private List<Integer> buckets;

    

    private double minValue;

    private double maxValue;



    /**

     * Create a new BucketHistogram that will use {@code bucketCount} buckets.

     * Number of buckets cannot be changed later.

     *

     * @param bucketCount number of buckets to be used

     */

    public BucketHistogram(int bucketCount) {

        this.bucketCount = bucketCount;

    }



    /**

     * Set values from which the bucket histogram will be calculated.

     *

     * @param values values

     * @see BucketHistogram#getBuckets()

     */

    public void setValues(Collection<Double> values) {

        this.buckets = new ArrayList<>(Collections.nCopies(this.bucketCount, 0));



        this.minValue = Double.POSITIVE_INFINITY;

        this.maxValue = Double.NEGATIVE_INFINITY;

        for (var value: values) {

            if (value < this.minValue) {

                this.minValue = value;

            }

            if (value > this.maxValue) {

                this.maxValue = value;

            }

        }



        double bucketSpan = (this.maxValue - this.minValue) / this.bucketCount;

        int bucketIndex, safeBucketIndex;

        for (var value: values) {

            bucketIndex = (int) ((value - this.minValue) / bucketSpan);

            safeBucketIndex = bucketIndex < this.bucketCount ? bucketIndex : this.bucketCount - 1;

            buckets.set(safeBucketIndex, buckets.get(safeBucketIndex) + 1);

        }

    }



    /**

     * Return buckets.

     * Integer at index {@code i} is equal to number of values that belong to that bucket range.

     *

     * @return list of buckets

     * @see BucketHistogram#setValues(Collection)

     */

    public List<Integer> getBuckets() {

        return Collections.unmodifiableList(this.buckets);

    }



    /**

     * @return minimum value from {@code values}

     * used in the last {@link BucketHistogram#setValues(Collection)} call

     */

    public double getMinimum() {

        return this.minValue;

    }



    /**

     * @return maximum value from {@code values}

     * used in the last {@link BucketHistogram#setValues(Collection)} call

     */

    public double getMaximum() {

        return this.maxValue;

    }

}

GUI/src/main/java/cz/fidentis/analyst/gui/elements/histogram/components/Bound.form

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<?xml version="1.0" encoding="UTF-8" ?>



<Form version="1.5" maxVersion="1.9" type="org.netbeans.modules.form.forminfo.JPanelFormInfo">

  <Properties>

    <Property name="opaque" type="boolean" value="false"/>

    <Property name="preferredSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">

      <Dimension value="[15, 420]"/>

    </Property>

  </Properties>

  <AuxValues>

    <AuxValue name="FormSettings_autoResourcing" type="java.lang.Integer" value="1"/>

    <AuxValue name="FormSettings_autoSetComponentName" type="java.lang.Boolean" value="false"/>

    <AuxValue name="FormSettings_generateFQN" type="java.lang.Boolean" value="true"/>

    <AuxValue name="FormSettings_generateMnemonicsCode" type="java.lang.Boolean" value="true"/>

    <AuxValue name="FormSettings_i18nAutoMode" type="java.lang.Boolean" value="true"/>

    <AuxValue name="FormSettings_layoutCodeTarget" type="java.lang.Integer" value="1"/>

    <AuxValue name="FormSettings_listenerGenerationStyle" type="java.lang.Integer" value="0"/>

    <AuxValue name="FormSettings_variablesLocal" type="java.lang.Boolean" value="false"/>

    <AuxValue name="FormSettings_variablesModifier" type="java.lang.Integer" value="2"/>

    <AuxValue name="designerSize" type="java.awt.Dimension" value="-84,-19,0,5,115,114,0,18,106,97,118,97,46,97,119,116,46,68,105,109,101,110,115,105,111,110,65,-114,-39,-41,-84,95,68,20,2,0,2,73,0,6,104,101,105,103,104,116,73,0,5,119,105,100,116,104,120,112,0,0,1,-92,0,0,0,15"/>

  </AuxValues>



  <Layout class="org.netbeans.modules.form.compat2.layouts.DesignAbsoluteLayout">

    <Property name="useNullLayout" type="boolean" value="true"/>

  </Layout>

  <SubComponents>

    <Component class="javax.swing.JButton" name="handle">

      <Properties>

        <Property name="text" type="java.lang.String" editor="org.netbeans.modules.i18n.form.FormI18nStringEditor">

          <ResourceString bundle="cz/fidentis/analyst/gui/elements/histogram/components/Bundle.properties" key="Bound.handle.text" replaceFormat="org.openide.util.NbBundle.getMessage({sourceFileName}.class, &quot;{key}&quot;)"/>

        </Property>

        <Property name="cursor" type="java.awt.Cursor" editor="org.netbeans.modules.form.editors2.CursorEditor">

          <Color id="West Resize Cursor"/>

        </Property>

      </Properties>

      <Constraints>

        <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignAbsoluteLayout" value="org.netbeans.modules.form.compat2.layouts.DesignAbsoluteLayout$AbsoluteConstraintsDescription">

          <AbsoluteConstraints x="0" y="188" width="15" height="44"/>

        </Constraint>

      </Constraints>

    </Component>

    <Container class="javax.swing.JPanel" name="indicator">

      <Properties>

        <Property name="background" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">

          <Color blue="0" green="0" red="0" type="rgb"/>

        </Property>

      </Properties>

      <AuxValues>

        <AuxValue name="JavaCodeGenerator_VariableLocal" type="java.lang.Boolean" value="true"/>

        <AuxValue name="JavaCodeGenerator_VariableModifier" type="java.lang.Integer" value="0"/>

      </AuxValues>

      <Constraints>

        <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignAbsoluteLayout" value="org.netbeans.modules.form.compat2.layouts.DesignAbsoluteLayout$AbsoluteConstraintsDescription">

          <AbsoluteConstraints x="7" y="0" width="1" height="420"/>

        </Constraint>

      </Constraints>



      <Layout>

        <DimensionLayout dim="0">

          <Group type="103" groupAlignment="0" attributes="0">

              <EmptySpace min="0" pref="1" max="32767" attributes="0"/>

          </Group>

        </DimensionLayout>

        <DimensionLayout dim="1">

          <Group type="103" groupAlignment="0" attributes="0">

              <EmptySpace min="0" pref="420" max="32767" attributes="0"/>

          </Group>

        </DimensionLayout>

      </Layout>

    </Container>

  </SubComponents>

</Form>

GUI/src/main/java/cz/fidentis/analyst/gui/elements/histogram/components/Bound.java

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package cz.fidentis.analyst.gui.elements.histogram.components;



import cz.fidentis.analyst.gui.elements.histogram.utils.ActionEmitter;



import javax.swing.JPanel;

import javax.swing.event.MouseInputAdapter;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.MouseEvent;



/**

 * Bound/slider bean-component that is draggable along X axis.

 *

 * @author Jakub Nezval

 */

public class Bound extends JPanel {



    /*

     * Actions triggered by this panel and served by the associated action listener

     */

    public static final String ACTION_COMMAND_BOUND_MOVED = "bound moved";



    private final ActionEmitter actionEmitter = new ActionEmitter();



    private int minXCoordinate = Integer.MIN_VALUE;

    private int maxXCoordinate = Integer.MAX_VALUE;

    

    /**

     * Creates new form Bound. Bound has ⟨{@link Integer#MIN_VALUE}, {@link Integer#MAX_VALUE}⟩ range by default.

     *

     * @see Bound#setBoundRange(int, int)

     */

    public Bound() {

        initComponents();



        var dragging = new MouseInputAdapter() {

            private int xOffset;



            @Override

            public void mousePressed(MouseEvent e) {

                xOffset = e.getX();

            }



            @Override

            public void mouseDragged(MouseEvent e) {

                var newX = getX() + e.getX() - xOffset;

                if (newX < minXCoordinate) {

                    newX = minXCoordinate;

                }

                if (newX > maxXCoordinate) {

                    newX = maxXCoordinate;

                }

                setLocation(newX, 0);

                // actionTriggered(e);  // may induce some lagging

            }



            @Override

            public void mouseReleased(MouseEvent e) {

                actionTriggered(e);

            }

        };



        this.handle.addMouseListener(dragging);

        this.handle.addMouseMotionListener(dragging);

    }



    private void actionTriggered(MouseEvent e) {

        actionEmitter.triggerActionEvent(

                new ActionEvent(

                        e.getSource(),

                        ActionEvent.ACTION_PERFORMED,

                        ACTION_COMMAND_BOUND_MOVED

                )

        );

    }



    /**

     * Set constraints on movement along X axis.

     *

     * @param min minimal value bound can have

     * @param max maximal value bound can have

     * @throws IllegalArgumentException if current value is outside of ⟨{@code min}, {@code max}⟩ range

     * @see Bound#getValue()

     */

    public void setBoundRange(int min, int max) throws IllegalArgumentException {

        if (this.getValue() < min || this.getValue() > max) {

            throw new IllegalArgumentException("Bound range doesn't include current value");

        }



        this.minXCoordinate = min;

        this.maxXCoordinate = max;

    }



    /**

     * Obtain value of Bound. Equal to {@code Bound.getX()}.

     *

     * @return value from bound range

     * @see Bound#setBoundRange(int, int)

     */

    public int getValue() {

        return this.getX();

    }



    /**

     * Set Bound's value & position accordingly.

     *

     * @param value value

     * @throws IllegalArgumentException if {@code value} is outside the Bound range

     */

    public void setValue(int value) throws IllegalArgumentException {

        if (value < minXCoordinate || value > maxXCoordinate) {

            throw new IllegalArgumentException("value is outside the Bound range");

        }

        this.setLocation(value, this.getY());

    }



    /**

     * Delegate of {@link ActionEmitter}.

     *

     * @param listener listener

     * @return {@code true} if {@code listener} was successfully added

     * @see ActionEmitter#addActionListener(ActionListener)

     */

    public boolean addActionListener(ActionListener listener) {

        return this.actionEmitter.addActionListener(listener);

    }



    /**

     * Delegate of {@link ActionEmitter}.

     *

     * @param listener listener

     * @return {@code true} if {@code listener} was successfully removed

     * @see ActionEmitter#removeActionListener(ActionListener) 

     */

    public boolean removeActionListener(ActionListener listener) {

        return this.actionEmitter.removeActionListener(listener);

    }



    /**

     * This method is called from within the constructor to initialize the form.

     * WARNING: Do NOT modify this code. The content of this method is always

     * regenerated by the Form Editor.

     */

    @SuppressWarnings("unchecked")

    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents

    private void initComponents() {



        handle = new javax.swing.JButton();

        javax.swing.JPanel indicator = new javax.swing.JPanel();



        setOpaque(false);

        setPreferredSize(new java.awt.Dimension(15, 420));

        setLayout(null);



        org.openide.awt.Mnemonics.setLocalizedText(handle, org.openide.util.NbBundle.getMessage(Bound.class, "Bound.handle.text")); // NOI18N

        handle.setCursor(new java.awt.Cursor(java.awt.Cursor.W_RESIZE_CURSOR));

        add(handle);

        handle.setBounds(0, 188, 15, 44);



        indicator.setBackground(new java.awt.Color(0, 0, 0));



        javax.swing.GroupLayout indicatorLayout = new javax.swing.GroupLayout(indicator);

        indicator.setLayout(indicatorLayout);

        indicatorLayout.setHorizontalGroup(

            indicatorLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addGap(0, 1, Short.MAX_VALUE)

        );

        indicatorLayout.setVerticalGroup(

            indicatorLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addGap(0, 420, Short.MAX_VALUE)

        );



        add(indicator);

        indicator.setBounds(7, 0, 1, 420);

    }// </editor-fold>//GEN-END:initComponents





    // Variables declaration - do not modify//GEN-BEGIN:variables

    private javax.swing.JButton handle;

    // End of variables declaration//GEN-END:variables

}

GUI/src/main/java/cz/fidentis/analyst/gui/elements/histogram/components/HistogramComponent.form

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Original line number Diff line number Diff line 
<?xml version="1.0" encoding="UTF-8" ?>



<Form version="1.9" maxVersion="1.9" type="org.netbeans.modules.form.forminfo.JPanelFormInfo">

  <Properties>

    <Property name="opaque" type="boolean" value="false"/>

  </Properties>

  <AuxValues>

    <AuxValue name="FormSettings_autoResourcing" type="java.lang.Integer" value="1"/>

    <AuxValue name="FormSettings_autoSetComponentName" type="java.lang.Boolean" value="false"/>

    <AuxValue name="FormSettings_generateFQN" type="java.lang.Boolean" value="true"/>

    <AuxValue name="FormSettings_generateMnemonicsCode" type="java.lang.Boolean" value="true"/>

    <AuxValue name="FormSettings_i18nAutoMode" type="java.lang.Boolean" value="true"/>

    <AuxValue name="FormSettings_layoutCodeTarget" type="java.lang.Integer" value="1"/>

    <AuxValue name="FormSettings_listenerGenerationStyle" type="java.lang.Integer" value="0"/>

    <AuxValue name="FormSettings_variablesLocal" type="java.lang.Boolean" value="false"/>

    <AuxValue name="FormSettings_variablesModifier" type="java.lang.Integer" value="2"/>

  </AuxValues>



  <Layout>

    <DimensionLayout dim="0">

      <Group type="103" groupAlignment="0" attributes="0">

          <Group type="102" alignment="0" attributes="0">

              <Component id="layers" min="-2" max="-2" attributes="0"/>

              <EmptySpace min="0" pref="0" max="32767" attributes="0"/>

          </Group>

      </Group>

    </DimensionLayout>

    <DimensionLayout dim="1">

      <Group type="103" groupAlignment="0" attributes="0">

          <Component id="layers" alignment="0" pref="420" max="32767" attributes="0"/>

      </Group>

    </DimensionLayout>

  </Layout>

  <SubComponents>

    <Container class="javax.swing.JLayeredPane" name="layers">

      <Properties>

        <Property name="focusable" type="boolean" value="false"/>

        <Property name="preferredSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">

          <Dimension value="[600, 300]"/>

        </Property>

      </Properties>



      <Layout class="org.netbeans.modules.form.compat2.layouts.DesignAbsoluteLayout">

        <Property name="useNullLayout" type="boolean" value="true"/>

      </Layout>

      <SubComponents>

        <Component class="cz.fidentis.analyst.gui.elements.histogram.components.Bound" name="lowerBound">

          <Constraints>

            <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignAbsoluteLayout" value="org.netbeans.modules.form.compat2.layouts.DesignAbsoluteLayout$AbsoluteConstraintsDescription">

              <AbsoluteConstraints x="0" y="0" width="15" height="420"/>

            </Constraint>

          </Constraints>

        </Component>

        <Component class="cz.fidentis.analyst.gui.elements.histogram.components.Bound" name="higherBound">

          <Constraints>

            <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignAbsoluteLayout" value="org.netbeans.modules.form.compat2.layouts.DesignAbsoluteLayout$AbsoluteConstraintsDescription">

              <AbsoluteConstraints x="585" y="0" width="15" height="420"/>

            </Constraint>

          </Constraints>

        </Component>

        <Container class="cz.fidentis.analyst.gui.elements.histogram.components.LineChartAreaPanel" name="chart">

          <Constraints>

            <Constraint layoutClass="org.netbeans.modules.form.compat2.layouts.DesignAbsoluteLayout" value="org.netbeans.modules.form.compat2.layouts.DesignAbsoluteLayout$AbsoluteConstraintsDescription">

              <AbsoluteConstraints x="8" y="5" width="584" height="410"/>

            </Constraint>

          </Constraints>



          <Layout>

            <DimensionLayout dim="0">

              <Group type="103" groupAlignment="0" attributes="0">

                  <EmptySpace min="0" pref="584" max="32767" attributes="0"/>

              </Group>

            </DimensionLayout>

            <DimensionLayout dim="1">

              <Group type="103" groupAlignment="0" attributes="0">

                  <EmptySpace min="0" pref="410" max="32767" attributes="0"/>

              </Group>

            </DimensionLayout>

          </Layout>

        </Container>

      </SubComponents>

    </Container>

  </SubComponents>

</Form>

GUI/src/main/java/cz/fidentis/analyst/gui/elements/histogram/components/HistogramComponent.java

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Original line number Diff line number Diff line 
/*

 * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license

 * Click nbfs://nbhost/SystemFileSystem/Templates/GUIForms/JPanel.java to edit this template

 */

package cz.fidentis.analyst.gui.elements.histogram.components;



import cz.fidentis.analyst.gui.elements.histogram.utils.ActionEmitter;

import cz.fidentis.analyst.gui.elements.histogram.BucketHistogram;

import cz.fidentis.analyst.gui.elements.histogram.utils.Mapping;



import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.Collection;

import javax.swing.JPanel;



/**

 * High level interactive histogram bean-component.

 *

 * @author Jakub Nezval

 */

public class HistogramComponent extends JPanel {



    /*

     * Actions triggered by this panel and served by the associated action listener

     */

    public static final String ACTION_COMMAND_BOUNDS_MOVED = "histogram bounds moved";

    

    private final ActionEmitter actionEmitter = new ActionEmitter();

    private final BucketHistogram bucketHistogram;

    

    private final int minBoundValue, maxBoundValue;

    

    /**

     * Creates new form HistogramComponent.

     */

    public HistogramComponent() {

        initComponents();

        this.bucketHistogram = new BucketHistogram(this.chart.getWidth() + 1);

        

        this.minBoundValue = this.lowerBound.getValue();

        this.maxBoundValue = this.higherBound.getValue();

        

        this.lowerBound.setBoundRange(this.minBoundValue, this.maxBoundValue);

        this.higherBound.setBoundRange(this.minBoundValue, this.maxBoundValue);



        var boundListener = new ActionListener() {

            @Override

            public void actionPerformed(ActionEvent e) {

                if (lowerBound.getValue() > higherBound.getValue()) {

                    var tmp = lowerBound;

                    lowerBound = higherBound;

                    higherBound = tmp;

                }



                actionEmitter.triggerActionEvent(

                        new ActionEvent(

                                e.getSource(),

                                ActionEvent.ACTION_PERFORMED,

                                HistogramComponent.ACTION_COMMAND_BOUNDS_MOVED

                        )

                );

            }

        };



        this.lowerBound.addActionListener(boundListener);

        this.higherBound.addActionListener(boundListener);

    }



    /**

     * Set values to be displayed in the histogram.

     *

     * @param values values

     */

    public void setValues(Collection<Double> values) {

        this.bucketHistogram.setValues(values);

        this.chart.setValues(this.bucketHistogram.getBuckets());

    }



    private double mapToHistogramValues(int value) {

        return Mapping.linear(

                value,

                this.minBoundValue + 1, this.maxBoundValue - 1,

                this.bucketHistogram.getMinimum(), this.bucketHistogram.getMaximum()

        );

    }



    /**

     * @return lower value from the duo of bound-sliders

     */

    public double getLowerBoundValue() {

        return this.mapToHistogramValues(this.lowerBound.getValue());

    }



    /**

     * @return higher value from the duo of bound-sliders

     */

    public double getHigherBoundValue() {

        return this.mapToHistogramValues(this.higherBound.getValue());

    }



    /**

     * Delegate of {@link ActionEmitter}.

     *

     * @param listener listener

     * @return {@code true} if {@code listener} was successfully added

     * @see ActionEmitter#addActionListener(ActionListener)

     */

    public boolean addActionListener(ActionListener listener) {

        return this.actionEmitter.addActionListener(listener);

    }



    /**

     * Delegate of {@link ActionEmitter}.

     *

     * @param listener listener

     * @return {@code true} if {@code listener} was successfully removed

     * @see ActionEmitter#removeActionListener(ActionListener)

     */

    public boolean removeActionListener(ActionListener listener) {

        return this.actionEmitter.removeActionListener(listener);

    }



    /**

     * Moves bounds to their original position.

     */

    public void resetBounds() {

        this.lowerBound.setValue(this.minBoundValue);

        this.higherBound.setValue(this.maxBoundValue);

    }



    /**

     * This method is called from within the constructor to initialize the form.

     * WARNING: Do NOT modify this code. The content of this method is always

     * regenerated by the Form Editor.

     */

    @SuppressWarnings("unchecked")

    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents

    private void initComponents() {



        layers = new javax.swing.JLayeredPane();

        lowerBound = new cz.fidentis.analyst.gui.elements.histogram.components.Bound();

        higherBound = new cz.fidentis.analyst.gui.elements.histogram.components.Bound();

        chart = new cz.fidentis.analyst.gui.elements.histogram.components.LineChartAreaPanel();



        setOpaque(false);



        layers.setFocusable(false);

        layers.setPreferredSize(new java.awt.Dimension(600, 300));

        layers.add(lowerBound);

        lowerBound.setBounds(0, 0, 15, 420);

        layers.add(higherBound);

        higherBound.setBounds(585, 0, 15, 420);



        javax.swing.GroupLayout chartLayout = new javax.swing.GroupLayout(chart);

        chart.setLayout(chartLayout);

        chartLayout.setHorizontalGroup(

            chartLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addGap(0, 584, Short.MAX_VALUE)

        );

        chartLayout.setVerticalGroup(

            chartLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addGap(0, 410, Short.MAX_VALUE)

        );



        layers.add(chart);

        chart.setBounds(8, 5, 584, 410);



        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);

        this.setLayout(layout);

        layout.setHorizontalGroup(

            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addGroup(layout.createSequentialGroup()

                .addComponent(layers, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)

                .addGap(0, 0, Short.MAX_VALUE))

        );

        layout.setVerticalGroup(

            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addComponent(layers, javax.swing.GroupLayout.DEFAULT_SIZE, 420, Short.MAX_VALUE)

        );

    }// </editor-fold>//GEN-END:initComponents





    // Variables declaration - do not modify//GEN-BEGIN:variables

    private cz.fidentis.analyst.gui.elements.histogram.components.LineChartAreaPanel chart;

    private cz.fidentis.analyst.gui.elements.histogram.components.Bound higherBound;

    private javax.swing.JLayeredPane layers;

    private cz.fidentis.analyst.gui.elements.histogram.components.Bound lowerBound;

    // End of variables declaration//GEN-END:variables

}