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AbstractRenderer.java
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AbstractRenderer.java
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/*******************************************************************************
* Copyright (c) 2006 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* chris.gross@us.ibm.com - initial API and implementation
*******************************************************************************/
package org.eclipse.nebula.widgets.grid;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Display;
/**
* <p>
* NOTE: THIS WIDGET AND ITS API ARE STILL UNDER DEVELOPMENT. THIS IS A PRE-RELEASE ALPHA
* VERSION. USERS SHOULD EXPECT API CHANGES IN FUTURE VERSIONS.
* </p>
* Base implementation of IRenderer. Provides management of a few values.
*
* @author chris.gross@us.ibm.com
*/
public abstract class AbstractRenderer implements IRenderer
{
/** Hover state. */
private boolean hover;
/** Renderer has focus. */
private boolean focus;
/** Mouse down on the renderer area. */
private boolean mouseDown;
/** Selection state. */
private boolean selected;
/** Expansion state. */
private boolean expanded;
/** The bounds the renderer paints on. */
private Rectangle bounds = new Rectangle(0, 0, 0, 0);
/** Display used to create GC to perform painting. */
private Display display;
/**
* Returns the bounds.
*
* @return Rectangle describing the bounds.
*/
public Rectangle getBounds()
{
return bounds;
}
/**
* {@inheritDoc}
*/
public void setBounds(int x, int y, int width, int height)
{
setBounds(new Rectangle(x, y, width, height));
}
/**
* {@inheritDoc}
*/
public void setBounds(Rectangle bounds)
{
this.bounds = bounds;
}
/**
* Returns the size.
*
* @return size of the renderer.
*/
public Point getSize()
{
return new Point(bounds.width, bounds.height);
}
/**
* {@inheritDoc}
*/
public void setLocation(int x, int y)
{
setBounds(new Rectangle(x, y, bounds.width, bounds.height));
}
/**
* {@inheritDoc}
*/
public void setLocation(Point location)
{
setBounds(new Rectangle(location.x, location.y, bounds.width, bounds.height));
}
/**
* {@inheritDoc}
*/
public void setSize(int width, int height)
{
setBounds(new Rectangle(bounds.x, bounds.y, width, height));
}
/**
* {@inheritDoc}
*/
public void setSize(Point size)
{
setBounds(new Rectangle(bounds.x, bounds.y, size.x, size.y));
}
/**
* Returns a boolean value indicating if this renderer has focus.
*
* @return True/false if has focus.
*/
public boolean isFocus()
{
return focus;
}
/**
* {@inheritDoc}
*/
public void setFocus(boolean focus)
{
this.focus = focus;
}
/**
* Returns the hover state.
*
* @return Is the renderer in the hover state.
*/
public boolean isHover()
{
return hover;
}
/**
* {@inheritDoc}
*/
public void setHover(boolean hover)
{
this.hover = hover;
}
/**
* Returns the boolean value indicating if the renderer has the mouseDown
* state.
*
* @return mouse down state.
*/
public boolean isMouseDown()
{
return mouseDown;
}
/**
* {@inheritDoc}
*/
public void setMouseDown(boolean mouseDown)
{
this.mouseDown = mouseDown;
}
/**
* Returns the boolean state indicating if the selected state is set.
*
* @return selected state.
*/
public boolean isSelected()
{
return selected;
}
/**
* {@inheritDoc}
*/
public void setSelected(boolean selected)
{
this.selected = selected;
}
/**
* Returns the expansion state.
*
* @return Returns the expanded.
*/
public boolean isExpanded()
{
return expanded;
}
/**
* Sets the expansion state of this renderer.
*
* @param expanded The expanded to set.
*/
public void setExpanded(boolean expanded)
{
this.expanded = expanded;
}
/**
* Sets the display for the renderer.
*
* @return Returns the display.
*/
public Display getDisplay()
{
return display;
}
/**
* {@inheritDoc}
*/
public void setDisplay(Display display)
{
this.display = display;
}
}