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130 lines
3.7 KiB
Java
130 lines
3.7 KiB
Java
/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Grendel mail/news client.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 1997 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*
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* Created: Will Scullin <scullin@netscape.com>, 4 Nov 1997.
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*/
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package grendel.search;
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import java.awt.Component;
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import java.awt.Container;
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import java.awt.Dimension;
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import java.awt.Insets;
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import java.awt.LayoutManager2;
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import java.awt.IllegalComponentStateException;
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class AttributeLayout implements LayoutManager2 {
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int fMargin = 4;
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Component fAttribute;
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Component fOperator;
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Component fValue;
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public static final String kAttribute = "attribute";
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public static final String kOperator = "operator";
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public static final String kValue = "value";
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public void addLayoutComponent(Component aComponent, Object aConstraint) {
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if (aConstraint.equals(kAttribute) && fAttribute == null) {
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fAttribute = aComponent;
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} else if (aConstraint.equals(kOperator) && fOperator == null) {
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fOperator = aComponent;
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} else if (aConstraint.equals(kValue) && fValue == null) {
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fValue = aComponent;
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} else {
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throw new IllegalComponentStateException();
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}
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}
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public void addLayoutComponent(String aConstraint, Component aComponent) {
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addLayoutComponent(aComponent, aConstraint);
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}
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public void removeLayoutComponent(Component aComponent) {
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if (aComponent == fAttribute) {
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fAttribute = null;
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} else if (aComponent == fOperator) {
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fOperator = null;
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} else if (aComponent == fValue) {
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fValue = null;
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}
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}
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public void layoutContainer(Container aParent) {
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int count = aParent.getComponentCount();
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Component c[] = aParent.getComponents();
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Insets insets = aParent.getInsets();
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Dimension size = aParent.getSize();
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int x = insets.top;
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int y = insets.left;
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int w = size.width - fMargin * (count - 1) - insets.left - insets.right;
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for (int i = 0; i < count; i++) {
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Dimension dim = c[i].getPreferredSize();
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if (c[i] == fValue) {
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dim.width = w / 2 + w % 4;
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} else {
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dim.width = w / 4;
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}
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c[i].setBounds(x, y, dim.width, dim.height);
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x += dim.width + fMargin;
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}
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}
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public Dimension preferredLayoutSize(Container aParent) {
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int count = aParent.getComponentCount();
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Component c[] = aParent.getComponents();
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Insets insets = aParent.getInsets();
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int h = 0;
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int w = 0;
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for (int i = 0; i < count; i++) {
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Dimension dim = c[i].getPreferredSize();
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if (dim.height > h) {
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h = dim.height;
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}
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w += dim.width;
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}
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w += insets.left + insets.right + (count - 1) * fMargin;
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h += insets.top + insets.bottom;
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return new Dimension(w, h);
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}
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public Dimension minimumLayoutSize(Container aParent) {
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return preferredLayoutSize(aParent);
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}
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public Dimension maximumLayoutSize(Container aParent) {
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return preferredLayoutSize(aParent);
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}
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public float getLayoutAlignmentX(Container aParent) {
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return 0;
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}
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public float getLayoutAlignmentY(Container aParent) {
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return 0;
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}
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public void invalidateLayout(Container aParent) {
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}
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}
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