profiler/lib.profiler.charts/src/org/netbeans/lib/profiler/charts/ChartSelectionManager.java - netbeans - Git at Google

 /*
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
  *   http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  * KIND, either express or implied.  See the License for the
  * specific language governing permissions and limitations
  * under the License.
  */

 package org.netbeans.lib.profiler.charts;

 import java.awt.Rectangle;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
 import java.awt.event.MouseMotionListener;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import javax.swing.SwingUtilities;

 /**
  *
  * @author Jiri Sedlacek
  */
 class ChartSelectionManager implements ChartSelectionModel {

     private ChartComponent chart;

     private ChartListener chartListener;
     private MouseListener mouseListener;

     private int selectionMode;
     private int moveMode;
     private int dragMode;

     private int hoverMode;
     private int hoverDistanceLimit;

     private int mouseX;
     private int mouseY;
     private boolean inChart;

     private Rectangle selectionBounds;

     private List<ItemSelection> highlightedSelection;
     private List<ItemSelection> selectedSelection;

     private boolean mousePanningBackup;

     private List<ChartSelectionListener> selectionListeners;


     public ChartSelectionManager() {
         mouseX = -1;
         mouseY = -1;
         inChart = false;

         chartListener = new ChartListener();
         mouseListener = new MouseListener();

         setMoveMode(SELECTION_NONE);
         setDragMode(SELECTION_NONE);
         setSelectionMode(moveMode);

         setHoverMode(HOVER_NONE);
         setHoverDistanceLimit(HOVER_DISTANCE_LIMIT_NONE);
     }


     // --- Internal API --------------------------------------------------------

     void registerChart(ChartComponent chart) {
         unregisterListener();
         this.chart = chart;
         registerListener();
     }

     void unregisterChart(ChartComponent chart) {
         unregisterListener();
         this.chart = null;
     }


     // --- Selection mode ------------------------------------------------------

     public final void setMoveMode(int mode) {
         moveMode = mode;
         if (selectionMode != moveMode) setSelectionMode(moveMode);
     }

     public final int getMoveMode() {
         return moveMode;
     }

     public final void setDragMode(int mode) {
         dragMode = mode;
     }

     public final int getDragMode() {
         return dragMode;
     }

     public final int getSelectionMode() {
         return selectionMode;
     }

     public final void setHoverMode(int mode) {
         hoverMode = mode;
         updateHighlightedItems();
     }

     public final int getHoverMode() {
         return hoverMode;
     }

     public final void setHoverDistanceLimit(int limit) {
         hoverDistanceLimit = limit;
     }

     public final int getHoverDistanceLimit() {
         return hoverDistanceLimit;
     }


     // --- Selection bounds ----------------------------------------------------

     public final void setSelectionBounds(int x, int y, int w, int h) {
         setSelectionBounds(new Rectangle(x, y, w, h));
     }

     public final void setSelectionBounds(Rectangle selectionBounds) {
         if (selectionBounds == null && this.selectionBounds == null) return;
         if (this.selectionBounds != null && this.selectionBounds.equals(selectionBounds) ||
             selectionBounds != null && selectionBounds.equals(this.selectionBounds)) return;

         Rectangle oldSelectionBounds = this.selectionBounds == null ? null :
                                        new Rectangle(this.selectionBounds);

         if (selectionBounds == null) this.selectionBounds = null;
         else if (this.selectionBounds == null) this.selectionBounds = new Rectangle(selectionBounds);
         else this.selectionBounds.setBounds(selectionBounds);

         fireSelectionBoundsChanged(this.selectionBounds, oldSelectionBounds);
     }

     public final Rectangle getSelectionBounds() {
         return new Rectangle(selectionBounds);
     }


     // --- Highlighted items ---------------------------------------------------

     public final void setHighlightedItems(List<ItemSelection> items) {
         if (highlightedSelection == null) {
             if (items.isEmpty()) return;
             highlightedSelection = new ArrayList(items);
             fireHighlightedItemsChanged(items, items, Collections.EMPTY_LIST);
         } else {
             List<ItemSelection> addedItems = new ArrayList();
             List<ItemSelection> removedItems = new ArrayList();

             for (ItemSelection item : items)
                 if (!highlightedSelection.contains(item)) addedItems.add(item);

             for (ItemSelection item : highlightedSelection)
                 if (!items.contains(item)) removedItems.add(item);

             if (addedItems.isEmpty() && removedItems.isEmpty()) return;

             highlightedSelection = new ArrayList(items);
             fireHighlightedItemsChanged(items, addedItems, removedItems);
         }
     }

     public final List<ItemSelection> getHighlightedItems() {
         return highlightedSelection == null ? Collections.EMPTY_LIST :
                                               new ArrayList(highlightedSelection);
     }


     // --- Selected items ------------------------------------------------------

     public final void setSelectedItems(List<ItemSelection> items) {
         if (selectedSelection == null) {
             if (items.isEmpty()) return;
             selectedSelection = new ArrayList(items);
             fireSelectedItemsChanged(items, items, Collections.EMPTY_LIST);
         } else {
             List<ItemSelection> addedItems = new ArrayList();
             List<ItemSelection> removedItems = new ArrayList();

             for (ItemSelection item : items)
                 if (!selectedSelection.contains(item)) addedItems.add(item);

             for (ItemSelection item : selectedSelection)
                 if (!items.contains(item)) removedItems.add(item);

             if (addedItems.isEmpty() && removedItems.isEmpty()) return;

             selectedSelection = new ArrayList(items);
             fireSelectedItemsChanged(items, addedItems, removedItems);
         }
     }

     public final List<ItemSelection> getSelectedItems() {
         return selectedSelection == null ? Collections.EMPTY_LIST :
                                            new ArrayList(selectedSelection);
     }


     // --- Selection listeners -------------------------------------------------

     public final void addSelectionListener(ChartSelectionListener listener) {
         if (selectionListeners == null) selectionListeners = new ArrayList();
         selectionListeners.add(listener);
     }

     public final void removeSelectionListener(ChartSelectionListener listener) {
         if (selectionListeners == null) return;
         selectionListeners.remove(listener);
     }


     // --- Private implementation ----------------------------------------------

     private void setSelectionMode(int selectionMode) {
         if (this.selectionMode == selectionMode) return;
         int oldSelectionMode = this.selectionMode;
         this.selectionMode = selectionMode;
         fireSelectionModeChanged(this.selectionMode, oldSelectionMode);
     }


     private void registerListener() {
         if (chart == null) return;
         chart.addMouseListener(mouseListener);
         chart.addMouseMotionListener(mouseListener);
         chart.addConfigurationListener(chartListener);
     }

     private void unregisterListener() {
         if (chart == null) return;
         chart.removeMouseListener(mouseListener);
         chart.removeMouseMotionListener(mouseListener);
         chart.removeConfigurationListener(chartListener);
     }


     private void updateHighlightedItems() {
         final int x = mouseX;
         final int y = mouseY;

         SwingUtilities.invokeLater(new Runnable() {
             public void run() {
                 if (hoverMode == HOVER_NONE || !inChart) {
                     setHighlightedItems(Collections.EMPTY_LIST);
                     return;
                 }

                 ItemsModel itemsModel = chart.getItemsModel();
                 PaintersModel paintersModel = chart.getPaintersModel();

                 int itemsCount = itemsModel.getItemsCount();
                 List<ItemSelection> closestSelection = new ArrayList(itemsCount);

                 for (int i = 0; i < itemsCount; i++) {
                     ChartItem item = itemsModel.getItem(i);
                     ItemPainter painter = paintersModel.getPainter(item);
                     ItemSelection selection = painter.getClosestSelection(item, x, y,
                                                             chart.getChartContext());

                     if (selection != null) {
                         int distance = selection.getDistance();
                         if (hoverMode == HOVER_EACH_NEAREST || closestSelection.isEmpty()) {
                             if (hoverDistanceLimit == HOVER_DISTANCE_LIMIT_NONE ||
                                 distance <= hoverDistanceLimit)
                                 closestSelection.add(selection);
                         } else {
                             if (closestSelection.get(0).getDistance() > distance) {
                                 if (hoverDistanceLimit == HOVER_DISTANCE_LIMIT_NONE ||
                                     distance <= hoverDistanceLimit)
                                     closestSelection.set(0, selection);
                             }
                         }
                     }
                 }

                 setHighlightedItems(closestSelection);
             }
         });
     }


     private void fireSelectionModeChanged(int newMode, int oldMode) {
         if (selectionListeners == null) return;
         for (ChartSelectionListener listener : selectionListeners)
             listener.selectionModeChanged(newMode, oldMode);
     }

     private void fireSelectionBoundsChanged(Rectangle newBounds, Rectangle oldBounds) {
         if (selectionListeners == null) return;
         for (ChartSelectionListener listener : selectionListeners)
             listener.selectionBoundsChanged(newBounds, oldBounds);
     }

     private void fireHighlightedItemsChanged(List<ItemSelection> currentItems,
             List<ItemSelection> addedItems, List<ItemSelection> removedItems) {
         if (selectionListeners == null) return;
         for (ChartSelectionListener listener : selectionListeners)
             listener.highlightedItemsChanged(currentItems, addedItems, removedItems);
     }

     private void fireSelectedItemsChanged(List<ItemSelection> currentItems,
             List<ItemSelection> addedItems, List<ItemSelection> removedItems) {
         if (selectionListeners == null) return;
         for (ChartSelectionListener listener : selectionListeners)
             listener.selectedItemsChanged(currentItems, addedItems, removedItems);
     }


     private class ChartListener extends ChartConfigurationListener.Adapter {

         public void contentsWillBeUpdated(long offsetX, long offsetY,
                                 double scaleX, double scaleY,
                                 long lastOffsetX, long lastOffsetY,
                                 double lastScaleX, double lastScaleY) {
             updateHighlightedItems();
         }

     }


     private class MouseListener extends MouseAdapter implements MouseMotionListener {

         public void mousePressed(MouseEvent e) {
             mousePanningBackup = chart.isMousePanningEnabled();

             setSelectionMode(dragMode);
             if (selectionMode != SELECTION_NONE) {
                 chart.disableMousePanning();
                 setSelectionBounds(e.getX(), e.getY(), 0, 0);
             }
         }

         public void mouseReleased(MouseEvent e) {
             // Clear previous selection
             setSelectionBounds(null);

             setSelectionMode(moveMode);
             if (selectionMode == SELECTION_NONE)
                 chart.setMousePanningEnabled(mousePanningBackup);

             // Refresh selection if needed
             if (selectionMode != SELECTION_NONE)
                 setSelectionBounds(e.getX(), e.getY(), 0, 0);
         }

         public void mouseEntered(MouseEvent e) {
             inChart = true;
             mouseX = e.getX();
             mouseY = e.getY();
         }

         public void mouseExited(MouseEvent e) {
             inChart = false;

             if (selectionMode == SELECTION_LINE_V ||
                 selectionMode == SELECTION_LINE_H ||
                 selectionMode == SELECTION_CROSS) {
                 setSelectionBounds(null);
             }

             updateHighlightedItems();
         }

         public void mouseDragged(MouseEvent e) {
             if (selectionMode == SELECTION_RECT) {
                 setSelectionBounds(selectionBounds.x, selectionBounds.y,
                         e.getX() - selectionBounds.x, e.getY() - selectionBounds.y);
             }
         }

         public void mouseMoved(MouseEvent e) {
             mouseX = e.getX();
             mouseY = e.getY();

             if (selectionMode == SELECTION_NONE) setSelectionBounds(null);
             else setSelectionBounds(mouseX, mouseY, 0, 0);

             updateHighlightedItems();
         }

     }

 }
	/*
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (the
	* "License"); you may not use this file except in compliance
	* with the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing,
	* software distributed under the License is distributed on an
	* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
	* KIND, either express or implied. See the License for the
	* specific language governing permissions and limitations
	* under the License.
	*/

	package org.netbeans.lib.profiler.charts;

	import java.awt.Rectangle;
	import java.awt.event.MouseAdapter;
	import java.awt.event.MouseEvent;
	import java.awt.event.MouseMotionListener;
	import java.util.ArrayList;
	import java.util.Collections;
	import java.util.List;
	import javax.swing.SwingUtilities;

	/**
	*
	* @author Jiri Sedlacek
	*/
	class ChartSelectionManager implements ChartSelectionModel {

	private ChartComponent chart;

	private ChartListener chartListener;
	private MouseListener mouseListener;

	private int selectionMode;
	private int moveMode;
	private int dragMode;

	private int hoverMode;
	private int hoverDistanceLimit;

	private int mouseX;
	private int mouseY;
	private boolean inChart;

	private Rectangle selectionBounds;

	private List<ItemSelection> highlightedSelection;
	private List<ItemSelection> selectedSelection;

	private boolean mousePanningBackup;

	private List<ChartSelectionListener> selectionListeners;


	public ChartSelectionManager() {
	mouseX = -1;
	mouseY = -1;
	inChart = false;

	chartListener = new ChartListener();
	mouseListener = new MouseListener();

	setMoveMode(SELECTION_NONE);
	setDragMode(SELECTION_NONE);
	setSelectionMode(moveMode);

	setHoverMode(HOVER_NONE);
	setHoverDistanceLimit(HOVER_DISTANCE_LIMIT_NONE);
	}


	// --- Internal API --------------------------------------------------------

	void registerChart(ChartComponent chart) {
	unregisterListener();
	this.chart = chart;
	registerListener();
	}

	void unregisterChart(ChartComponent chart) {
	unregisterListener();
	this.chart = null;
	}


	// --- Selection mode ------------------------------------------------------

	public final void setMoveMode(int mode) {
	moveMode = mode;
	if (selectionMode != moveMode) setSelectionMode(moveMode);
	}

	public final int getMoveMode() {
	return moveMode;
	}

	public final void setDragMode(int mode) {
	dragMode = mode;
	}

	public final int getDragMode() {
	return dragMode;
	}

	public final int getSelectionMode() {
	return selectionMode;
	}

	public final void setHoverMode(int mode) {
	hoverMode = mode;
	updateHighlightedItems();
	}

	public final int getHoverMode() {
	return hoverMode;
	}

	public final void setHoverDistanceLimit(int limit) {
	hoverDistanceLimit = limit;
	}

	public final int getHoverDistanceLimit() {
	return hoverDistanceLimit;
	}


	// --- Selection bounds ----------------------------------------------------

	public final void setSelectionBounds(int x, int y, int w, int h) {
	setSelectionBounds(new Rectangle(x, y, w, h));
	}

	public final void setSelectionBounds(Rectangle selectionBounds) {
	if (selectionBounds == null && this.selectionBounds == null) return;
	if (this.selectionBounds != null && this.selectionBounds.equals(selectionBounds) \|\|
	selectionBounds != null && selectionBounds.equals(this.selectionBounds)) return;

	Rectangle oldSelectionBounds = this.selectionBounds == null ? null :
	new Rectangle(this.selectionBounds);

	if (selectionBounds == null) this.selectionBounds = null;
	else if (this.selectionBounds == null) this.selectionBounds = new Rectangle(selectionBounds);
	else this.selectionBounds.setBounds(selectionBounds);

	fireSelectionBoundsChanged(this.selectionBounds, oldSelectionBounds);
	}

	public final Rectangle getSelectionBounds() {
	return new Rectangle(selectionBounds);
	}


	// --- Highlighted items ---------------------------------------------------

	public final void setHighlightedItems(List<ItemSelection> items) {
	if (highlightedSelection == null) {
	if (items.isEmpty()) return;
	highlightedSelection = new ArrayList(items);
	fireHighlightedItemsChanged(items, items, Collections.EMPTY_LIST);
	} else {
	List<ItemSelection> addedItems = new ArrayList();
	List<ItemSelection> removedItems = new ArrayList();

	for (ItemSelection item : items)
	if (!highlightedSelection.contains(item)) addedItems.add(item);

	for (ItemSelection item : highlightedSelection)
	if (!items.contains(item)) removedItems.add(item);

	if (addedItems.isEmpty() && removedItems.isEmpty()) return;

	highlightedSelection = new ArrayList(items);
	fireHighlightedItemsChanged(items, addedItems, removedItems);
	}
	}

	public final List<ItemSelection> getHighlightedItems() {
	return highlightedSelection == null ? Collections.EMPTY_LIST :
	new ArrayList(highlightedSelection);
	}


	// --- Selected items ------------------------------------------------------

	public final void setSelectedItems(List<ItemSelection> items) {
	if (selectedSelection == null) {
	if (items.isEmpty()) return;
	selectedSelection = new ArrayList(items);
	fireSelectedItemsChanged(items, items, Collections.EMPTY_LIST);
	} else {
	List<ItemSelection> addedItems = new ArrayList();
	List<ItemSelection> removedItems = new ArrayList();

	for (ItemSelection item : items)
	if (!selectedSelection.contains(item)) addedItems.add(item);

	for (ItemSelection item : selectedSelection)
	if (!items.contains(item)) removedItems.add(item);

	if (addedItems.isEmpty() && removedItems.isEmpty()) return;

	selectedSelection = new ArrayList(items);
	fireSelectedItemsChanged(items, addedItems, removedItems);
	}
	}

	public final List<ItemSelection> getSelectedItems() {
	return selectedSelection == null ? Collections.EMPTY_LIST :
	new ArrayList(selectedSelection);
	}


	// --- Selection listeners -------------------------------------------------

	public final void addSelectionListener(ChartSelectionListener listener) {
	if (selectionListeners == null) selectionListeners = new ArrayList();
	selectionListeners.add(listener);
	}

	public final void removeSelectionListener(ChartSelectionListener listener) {
	if (selectionListeners == null) return;
	selectionListeners.remove(listener);
	}


	// --- Private implementation ----------------------------------------------

	private void setSelectionMode(int selectionMode) {
	if (this.selectionMode == selectionMode) return;
	int oldSelectionMode = this.selectionMode;
	this.selectionMode = selectionMode;
	fireSelectionModeChanged(this.selectionMode, oldSelectionMode);
	}


	private void registerListener() {
	if (chart == null) return;
	chart.addMouseListener(mouseListener);
	chart.addMouseMotionListener(mouseListener);
	chart.addConfigurationListener(chartListener);
	}

	private void unregisterListener() {
	if (chart == null) return;
	chart.removeMouseListener(mouseListener);
	chart.removeMouseMotionListener(mouseListener);
	chart.removeConfigurationListener(chartListener);
	}


	private void updateHighlightedItems() {
	final int x = mouseX;
	final int y = mouseY;

	SwingUtilities.invokeLater(new Runnable() {
	public void run() {
	if (hoverMode == HOVER_NONE \|\| !inChart) {
	setHighlightedItems(Collections.EMPTY_LIST);
	return;
	}

	ItemsModel itemsModel = chart.getItemsModel();
	PaintersModel paintersModel = chart.getPaintersModel();

	int itemsCount = itemsModel.getItemsCount();
	List<ItemSelection> closestSelection = new ArrayList(itemsCount);

	for (int i = 0; i < itemsCount; i++) {
	ChartItem item = itemsModel.getItem(i);
	ItemPainter painter = paintersModel.getPainter(item);
	ItemSelection selection = painter.getClosestSelection(item, x, y,
	chart.getChartContext());

	if (selection != null) {
	int distance = selection.getDistance();
	if (hoverMode == HOVER_EACH_NEAREST \|\| closestSelection.isEmpty()) {
	if (hoverDistanceLimit == HOVER_DISTANCE_LIMIT_NONE \|\|
	distance <= hoverDistanceLimit)
	closestSelection.add(selection);
	} else {
	if (closestSelection.get(0).getDistance() > distance) {
	if (hoverDistanceLimit == HOVER_DISTANCE_LIMIT_NONE \|\|
	distance <= hoverDistanceLimit)
	closestSelection.set(0, selection);
	}
	}
	}
	}

	setHighlightedItems(closestSelection);
	}
	});
	}


	private void fireSelectionModeChanged(int newMode, int oldMode) {
	if (selectionListeners == null) return;
	for (ChartSelectionListener listener : selectionListeners)
	listener.selectionModeChanged(newMode, oldMode);
	}

	private void fireSelectionBoundsChanged(Rectangle newBounds, Rectangle oldBounds) {
	if (selectionListeners == null) return;
	for (ChartSelectionListener listener : selectionListeners)
	listener.selectionBoundsChanged(newBounds, oldBounds);
	}

	private void fireHighlightedItemsChanged(List<ItemSelection> currentItems,
	List<ItemSelection> addedItems, List<ItemSelection> removedItems) {
	if (selectionListeners == null) return;
	for (ChartSelectionListener listener : selectionListeners)
	listener.highlightedItemsChanged(currentItems, addedItems, removedItems);
	}

	private void fireSelectedItemsChanged(List<ItemSelection> currentItems,
	List<ItemSelection> addedItems, List<ItemSelection> removedItems) {
	if (selectionListeners == null) return;
	for (ChartSelectionListener listener : selectionListeners)
	listener.selectedItemsChanged(currentItems, addedItems, removedItems);
	}


	private class ChartListener extends ChartConfigurationListener.Adapter {

	public void contentsWillBeUpdated(long offsetX, long offsetY,
	double scaleX, double scaleY,
	long lastOffsetX, long lastOffsetY,
	double lastScaleX, double lastScaleY) {
	updateHighlightedItems();
	}

	}


	private class MouseListener extends MouseAdapter implements MouseMotionListener {

	public void mousePressed(MouseEvent e) {
	mousePanningBackup = chart.isMousePanningEnabled();

	setSelectionMode(dragMode);
	if (selectionMode != SELECTION_NONE) {
	chart.disableMousePanning();
	setSelectionBounds(e.getX(), e.getY(), 0, 0);
	}
	}

	public void mouseReleased(MouseEvent e) {
	// Clear previous selection
	setSelectionBounds(null);

	setSelectionMode(moveMode);
	if (selectionMode == SELECTION_NONE)
	chart.setMousePanningEnabled(mousePanningBackup);

	// Refresh selection if needed
	if (selectionMode != SELECTION_NONE)
	setSelectionBounds(e.getX(), e.getY(), 0, 0);
	}

	public void mouseEntered(MouseEvent e) {
	inChart = true;
	mouseX = e.getX();
	mouseY = e.getY();
	}

	public void mouseExited(MouseEvent e) {
	inChart = false;

	if (selectionMode == SELECTION_LINE_V \|\|
	selectionMode == SELECTION_LINE_H \|\|
	selectionMode == SELECTION_CROSS) {
	setSelectionBounds(null);
	}

	updateHighlightedItems();
	}

	public void mouseDragged(MouseEvent e) {
	if (selectionMode == SELECTION_RECT) {
	setSelectionBounds(selectionBounds.x, selectionBounds.y,
	e.getX() - selectionBounds.x, e.getY() - selectionBounds.y);
	}
	}

	public void mouseMoved(MouseEvent e) {
	mouseX = e.getX();
	mouseY = e.getY();

	if (selectionMode == SELECTION_NONE) setSelectionBounds(null);
	else setSelectionBounds(mouseX, mouseY, 0, 0);

	updateHighlightedItems();
	}

	}

	}