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/*
* This file is part of the Echo Web Application Framework (hereinafter "Echo").
* Copyright (C) 2002-2009 NextApp, Inc.
*
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*/
package nextapp.echo2.app;
/**
* A container which displays two components horizontally or vertically
* adjacent to one another.
*
* Child LayoutData: Children of this component may provide
* layout information using the
* nextapp.echo2.app.layout.SplitPaneLayoutData layout data object.
*
* @see nextapp.echo2.app.layout.SplitPaneLayoutData
*/
public class SplitPane extends Component
implements Pane, PaneContainer {
/**
* An orientation constant indicating that the
* SplitPane should be laid out horizontally with the
* first (fixed-size) pane in the leading position.
* The leading position is on the left side for left-to-right languages
* and on the right side for right-to-left languages.
*/
public static final int ORIENTATION_HORIZONTAL_LEADING_TRAILING = 1;
/**
* An orientation constant indicating that the
* SplitPane should be laid out horizontally with the
* first (fixed-size) pane in the trailing position.
* The trailing position is on the right side for left-to-right languages
* and on the left side for right-to-left languages.
*/
public static final int ORIENTATION_HORIZONTAL_TRAILING_LEADING = 2;
/**
* An orientation constant indicating that the
* SplitPane should be laid out horizontally with the
* first (fixed-size) pane in the left position.
*/
public static final int ORIENTATION_HORIZONTAL_LEFT_RIGHT = 3;
/**
* An orientation constant indicating that the
* SplitPane should be laid out horizontally with the
* first (fixed-size) pane in the right position.
*/
public static final int ORIENTATION_HORIZONTAL_RIGHT_LEFT = 4;
/**
* An orientation constant indicating that the
* SplitPane should be laid out vertically with the
* first (fixed-size) pane in the top position.
*/
public static final int ORIENTATION_VERTICAL_TOP_BOTTOM = 5;
/**
* An orientation constant indicating that the
* SplitPane should be laid out vertically with the
* first (fixed-size) pane in the bottom position.
*/
public static final int ORIENTATION_VERTICAL_BOTTOM_TOP = 6;
/**
* Shorthand for ORIENTATION_HORIZONTAL_LEADING_TRAILING.
*/
public static final int ORIENTATION_HORIZONTAL = ORIENTATION_HORIZONTAL_LEADING_TRAILING;
/**
* Shorthand for ORIENTATION_VERTICAL_TOP_BOTTOM.
*/
public static final int ORIENTATION_VERTICAL = ORIENTATION_VERTICAL_TOP_BOTTOM;
public static final String PROPERTY_ORIENTATION = "orientation";
public static final String PROPERTY_RESIZABLE = "resizable";
public static final String PROPERTY_SEPARATOR_COLOR = "separatorColor";
public static final String PROPERTY_SEPARATOR_HEIGHT = "separatorHeight";
public static final String PROPERTY_SEPARATOR_HORIZONTAL_IMAGE = "separatorHorizontalImage";
public static final String PROPERTY_SEPARATOR_POSITION = "separatorPosition";
public static final String PROPERTY_SEPARATOR_WIDTH = "separatorWidth";
public static final String PROPERTY_SEPARATOR_VERTICAL_IMAGE = "separatorVerticalImage";
/**
* Creates a new SplitPane with default (horizontal)
* orientation.
*/
public SplitPane() {
super();
}
/**
* Creates a new SplitPane with the specified orientation.
*
* @param orientation a constant representing the orientation, one of the
* following values:
*
* ORIENTATION_HORIZONTALORIENTATION_VERTICALORIENTATION_HORIZONTAL_LEADING_TRAILINGORIENTATION_HORIZONTAL_TRAILING_LEADINGORIENTATION_HORIZONTAL_LEFT_RIGHTORIENTATION_HORIZONTAL_RIGHT_LEFTORIENTATION_VERTICAL_TOP_BOTTOMORIENTATION_VERTICAL_BOTTOM_TOP
*/
public SplitPane(int orientation) {
super();
setOrientation(orientation);
}
/**
* Creates a new SplitPane with the specified orientation and
* separator position.
*
* @param orientation a constant representing the orientation, one of the
* following values:
*
* ORIENTATION_HORIZONTALORIENTATION_VERTICALORIENTATION_HORIZONTAL_LEADING_TRAILINGORIENTATION_HORIZONTAL_TRAILING_LEADINGORIENTATION_HORIZONTAL_LEFT_RIGHTORIENTATION_HORIZONTAL_RIGHT_LEFTORIENTATION_VERTICAL_TOP_BOTTOMORIENTATION_VERTICAL_BOTTOM_TOP
* @param separatorPosition the initial position of the separator
* (in pixel units)
*/
public SplitPane(int orientation, Extent separatorPosition) {
super();
setOrientation(orientation);
if (separatorPosition != null) {
setSeparatorPosition(separatorPosition);
}
}
/**
* Returns the orientation of the SplitPane.
*
* @return a constant representing the orientation, one of the following
* values:
*
* ORIENTATION_HORIZONTALORIENTATION_VERTICALORIENTATION_HORIZONTAL_LEADING_TRAILINGORIENTATION_HORIZONTAL_TRAILING_LEADINGORIENTATION_HORIZONTAL_LEFT_RIGHTORIENTATION_HORIZONTAL_RIGHT_LEFTORIENTATION_VERTICAL_TOP_BOTTOMORIENTATION_VERTICAL_BOTTOM_TOP
*/
public int getOrientation() {
Integer orientation = (Integer) getProperty(PROPERTY_ORIENTATION);
return orientation == null ? ORIENTATION_VERTICAL : orientation.intValue();
}
/**
* Returns the color of the pane separator.
*
* @return the color
*/
public Color getSeparatorColor() {
return (Color) getProperty(PROPERTY_SEPARATOR_COLOR);
}
/**
* Returns the height of the pane separator. This value is relevant only
* when the SplitPane has a vertical orientation.
* This property only supports Extents with
* pixel units.
*
* @return the separator width
*/
public Extent getSeparatorHeight() {
return (Extent) getProperty(PROPERTY_SEPARATOR_HEIGHT);
}
/**
* Returns the fill image of the pane separator that is displayed when the
* SplitPane has a horizontal orientation.
*
* @return the image
*/
public FillImage getSeparatorHorizontalImage() {
return (FillImage) getProperty(PROPERTY_SEPARATOR_HORIZONTAL_IMAGE);
}
/**
* Returns the position of the pane separator.
* This property only supports Extents with
* pixel units.
*
* @return the separator position
*/
public Extent getSeparatorPosition() {
return (Extent) getProperty(PROPERTY_SEPARATOR_POSITION);
}
/**
* Returns the fill image of the pane separator that is displayed when the
* SplitPane has a vertical orientation.
*
* @return the image
*/
public FillImage getSeparatorVerticalImage() {
return (FillImage) getProperty(PROPERTY_SEPARATOR_VERTICAL_IMAGE);
}
/**
* Returns the width of the pane separator. This value is relevant only
* when the SplitPane has a horizontal orientation.
* This property only supports Extents with
* pixel units.
*
* @return the separator width
*/
public Extent getSeparatorWidth() {
return (Extent) getProperty(PROPERTY_SEPARATOR_WIDTH);
}
/**
* Determines if the SplitPane is resizable.
*
* @return true if the SplitPane is resizable
*/
public boolean isResizable() {
Boolean value = (Boolean) getProperty(PROPERTY_RESIZABLE);
return value == null ? false : value.booleanValue();
}
/**
* No more than two children may be added.
*
* @see nextapp.echo2.app.Component#isValidChild(nextapp.echo2.app.Component)
*/
public boolean isValidChild(Component component) {
return getComponentCount() <= 1;
}
/**
* @see nextapp.echo2.app.Component#isValidParent(nextapp.echo2.app.Component)
*/
public boolean isValidParent(Component parent) {
return parent instanceof PaneContainer;
}
/**
* @see nextapp.echo2.app.Component#processInput(java.lang.String, java.lang.Object)
*/
public void processInput(String inputName, Object inputValue) {
if (PROPERTY_SEPARATOR_POSITION.equals(inputName)) {
setSeparatorPosition((Extent) inputValue);
}
}
/**
* Sets the orientation of the SplitPane.
*
* @param newValue a constant representing the orientation, one of the
* following values:
*
* ORIENTATION_HORIZONTALORIENTATION_VERTICALORIENTATION_HORIZONTAL_LEADING_TRAILINGORIENTATION_HORIZONTAL_TRAILING_LEADINGORIENTATION_HORIZONTAL_LEFT_RIGHTORIENTATION_HORIZONTAL_RIGHT_LEFTORIENTATION_VERTICAL_TOP_BOTTOMORIENTATION_VERTICAL_BOTTOM_TOP
*/
public void setOrientation(int newValue) {
setProperty(PROPERTY_ORIENTATION, new Integer(newValue));
}
/**
* Sets whether the SplitPane is resizable.
*
* @param newValue true if the SplitPane should allow the
* resizing of panes by dragging the separator, false if it should
* not
*/
public void setResizable(boolean newValue) {
setProperty(PROPERTY_RESIZABLE, new Boolean(newValue));
}
/**
* Sets the color of the pane separator.
*
* @param newValue the new color
*/
public void setSeparatorColor(Color newValue) {
setProperty(PROPERTY_SEPARATOR_COLOR, newValue);
}
/**
* Sets the height of the pane separator. This value is only relevant
* when the SplitPane has a vertical orientation.
* This property only supports Extents with
* pixel units.
*
* @param newValue the new height
*/
public void setSeparatorHeight(Extent newValue) {
Extent.validate(newValue, Extent.PX);
setProperty(PROPERTY_SEPARATOR_HEIGHT, newValue);
}
/**
* Sets the fill image of the pane separator that is displayed when the
* SplitPane has a horizontal orientation.
*
* @param newValue the new image
*/
public void setSeparatorHorizontalImage(FillImage newValue) {
setProperty(PROPERTY_SEPARATOR_HORIZONTAL_IMAGE, newValue);
}
/**
* Sets the position of the pane separator.
* This property only supports Extents with
* pixel units.
*
* @param newValue the new position
*/
public void setSeparatorPosition(Extent newValue) {
Extent.validate(newValue, Extent.PX);
if (newValue != null && newValue.getValue() < 0) {
throw new IllegalArgumentException("Extent value may not be negative.");
}
setProperty(PROPERTY_SEPARATOR_POSITION, newValue);
}
/**
* Sets the fill image of the pane separator that is displayed when the
* SplitPane has a vertical orientation.
*
* @param newValue the new image
*/
public void setSeparatorVerticalImage(FillImage newValue) {
setProperty(PROPERTY_SEPARATOR_VERTICAL_IMAGE, newValue);
}
/**
* Sets the width of the pane separator. This value is only relevant
* when the SplitPane has a horizontal orientation.
* This property only supports Extents with
* pixel units.
*
* @param newValue the new width
*/
public void setSeparatorWidth(Extent newValue) {
Extent.validate(newValue, Extent.PX);
setProperty(PROPERTY_SEPARATOR_WIDTH, newValue);
}
}