client: Misc
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Owain van Brakel
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/*
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* Copyright (c) 2018, Shingyx <https://github.com/Shingyx>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package net.runelite.client.ui.components;
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import java.awt.Component;
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import java.awt.Container;
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import java.awt.LayoutManager;
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import java.awt.Point;
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import java.awt.dnd.DragSource;
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import java.awt.event.MouseAdapter;
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import java.awt.event.MouseEvent;
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import java.util.HashMap;
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import java.util.Map;
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import javax.swing.BoxLayout;
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import javax.swing.JLayeredPane;
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/**
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* Pane which allows reordering its components via drag and drop.
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* <p>
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* For child components' popup menus, implement the PopupMenuOwner interface in the child components.
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*/
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public class DragAndDropReorderPane extends JLayeredPane
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{
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private Point dragStartPoint;
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private Component draggingComponent;
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private int dragIndex = -1;
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private final Map<Integer, PopupMenuOwner> popupMenuCandidates = new HashMap<>(); // keyed by mouse button
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public DragAndDropReorderPane()
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{
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super();
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setLayout(new DragAndDropReorderLayoutManager());
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MouseAdapter mouseAdapter = new DragAndDropReorderMouseAdapter();
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addMouseListener(mouseAdapter);
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addMouseMotionListener(mouseAdapter);
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}
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@Override
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public void setLayout(LayoutManager layoutManager)
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{
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if (layoutManager != null && !(layoutManager instanceof DragAndDropReorderLayoutManager))
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{
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throw new IllegalArgumentException("DragAndDropReorderPane only supports DragAndDropReorderLayoutManager");
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}
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super.setLayout(layoutManager);
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}
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private void startDragging(Point point)
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{
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draggingComponent = getDefaultLayerComponentAt(dragStartPoint);
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if (draggingComponent == null)
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{
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dragStartPoint = null;
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return;
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}
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dragIndex = getPosition(draggingComponent);
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setLayer(draggingComponent, DRAG_LAYER);
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moveDraggingComponent(point);
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}
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private void drag(Point point)
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{
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moveDraggingComponent(point);
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Component component = getDefaultLayerComponentAt(point);
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if (component != null)
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{
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int index = getPosition(component);
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dragIndex = index < dragIndex ? index : index + 1;
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revalidate();
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}
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}
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private void finishDragging()
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{
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if (draggingComponent != null)
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{
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setLayer(draggingComponent, DEFAULT_LAYER, dragIndex);
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revalidate();
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}
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dragStartPoint = null;
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draggingComponent = null;
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dragIndex = -1;
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}
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private void moveDraggingComponent(Point point)
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{
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// place the center of the dragging component onto the mouse cursor
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int y = point.y - draggingComponent.getHeight() / 2;
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// clamp the height to stay within the pane
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y = Math.max(y, 0);
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y = Math.min(y, getHeight() - draggingComponent.getHeight());
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draggingComponent.setLocation(new Point(0, y));
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}
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private Component getDefaultLayerComponentAt(Point point)
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{
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for (Component component : getComponentsInLayer(DEFAULT_LAYER))
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{
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if (component.contains(point.x - component.getX(), point.y - component.getY()))
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{
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return component;
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}
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}
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return null;
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}
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private class DragAndDropReorderLayoutManager extends BoxLayout
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{
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private DragAndDropReorderLayoutManager()
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{
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super(DragAndDropReorderPane.this, BoxLayout.Y_AXIS);
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}
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@Override
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public void layoutContainer(Container target)
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{
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if (draggingComponent != null)
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{
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// temporarily move the dragging component to the default layer for correct layout calculation
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Point location = draggingComponent.getLocation();
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setLayer(draggingComponent, DEFAULT_LAYER, dragIndex);
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super.layoutContainer(target);
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setLayer(draggingComponent, DRAG_LAYER);
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draggingComponent.setLocation(location);
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}
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else
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{
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super.layoutContainer(target);
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}
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}
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}
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private class DragAndDropReorderMouseAdapter extends MouseAdapter
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{
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@Override
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public void mousePressed(MouseEvent e)
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{
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Point point = e.getPoint();
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int mouseButton = e.getButton();
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if (mouseButton == MouseEvent.BUTTON1)
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{
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// candidate for dragging
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if (popupMenuCandidates.isEmpty() && getComponentCount() > 1)
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{
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dragStartPoint = point;
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}
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}
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else
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{
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if (dragStartPoint != null)
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{
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finishDragging();
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}
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else
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{
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// candidate for child popup menu
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Component component = getDefaultLayerComponentAt(point);
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if (component instanceof PopupMenuOwner)
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{
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PopupMenuOwner popupMenuCandidate = (PopupMenuOwner) component;
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if (e.isPopupTrigger())
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{
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popupMenuCandidate.getPopupMenu().show(DragAndDropReorderPane.this, point.x, point.y);
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}
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else
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{
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popupMenuCandidates.put(mouseButton, popupMenuCandidate);
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}
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}
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}
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}
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}
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@Override
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public void mouseDragged(MouseEvent e)
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{
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if (dragStartPoint == null)
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{
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return;
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}
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Point point = e.getPoint();
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if (contains(point))
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{
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if (draggingComponent == null)
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{
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if (point.distance(dragStartPoint) > DragSource.getDragThreshold())
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{
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startDragging(point);
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}
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}
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else
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{
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drag(point);
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}
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}
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else
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{
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finishDragging();
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}
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}
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@Override
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public void mouseReleased(MouseEvent e)
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{
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Point point = e.getPoint();
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int mouseButton = e.getButton();
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if (mouseButton == MouseEvent.BUTTON1)
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{
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finishDragging();
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}
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else
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{
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PopupMenuOwner popupMenuCandidate = popupMenuCandidates.remove(mouseButton);
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if (popupMenuCandidate != null && e.isPopupTrigger())
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{
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popupMenuCandidate.getPopupMenu().show(DragAndDropReorderPane.this, point.x, point.y);
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}
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}
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}
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}
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}
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@@ -0,0 +1,36 @@
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/*
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* Copyright (c) 2018, Shingyx <https://github.com/Shingyx>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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||||
* modification, are permitted provided that the following conditions are met:
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*
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||||
* 1. Redistributions of source code must retain the above copyright notice, this
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||||
* list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package net.runelite.client.ui.components;
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import javax.swing.JPopupMenu;
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/**
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* Represents a UI component which has a popup menu, to be used on child components inside DragAndDropReorderPane.
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* This is because using setComponentPopupMenu consumes the MouseEvents required for drag and drop reordering.
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*/
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public interface PopupMenuOwner
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{
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JPopupMenu getPopupMenu();
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}
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