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/*******************************************************************************
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* Copyright (c) 2000, 2010 IBM Corporation and others.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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* Asim Ullah - Ported for use in draw2d (c.f Bugzilla 71684). [Sep 10, 2004]
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*******************************************************************************/
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package org.eclipse.draw2d;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import org.eclipse.draw2d.geometry.Dimension;
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import org.eclipse.draw2d.geometry.Rectangle;
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import org.eclipse.draw2d.rap.swt.SWT;
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/**
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* Lays out children into a Grid arrangement in which overall aligment and
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* spacing can be configured, as well as specfic layout requirements for the
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* each individual member of the GridLayout. This layout is a Draw2D port of the
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* swt GridLayout.
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*
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* <code>GridLayout</code> has a number of configuration fields, and the Figures
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* it lays out can have an associated layout data object, called
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* <code>GridData</code> (similar to the swt GridData object). The power of
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* <code>GridLayout</code> lies in the ability to configure
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* <code>GridData</code> for each Figure in the layout.
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* <p>
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* The following code creates a container Figure managed by a
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* <code>GridLayout</code> with 2 columns, containing 3 RectangleFigure shapes,
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* the last of which has been given further layout instructions. Note that it is
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* the <code>GridLayout</code> method <code>setConstraint</code> that binds the
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* child <code>Figure</code> to its layout <code>GridData</code> object.
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*
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* <pre>
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* Figure container = new Figure();
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* GridLayout gridLayout = new GridLayout();
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* gridLayout.numColumns = 2;
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* container.setLayout(gridLayout);
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*
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* Shape rect;
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* rect = new RectangleFigure();
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* container.add(rect);
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*
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* rect = new RectangleFigure();
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* container.add(rect);
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*
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* rect = new RectangleFigure();
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* GridData gridData = new GridData();
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* gridData.widthHint = 150;
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* layout.setConstraint(rect, gridData);
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*
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* container.add(rect);
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* </pre>
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*
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* <p>
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* The <code>numColumns</code> field is the most important field in a
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* <code>GridLayout</code>. Widgets are laid out in columns from left to right,
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* and a new row is created when <code>numColumns</code>+ 1 figures are added to
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* the <code>Figure<code> parent container.
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*
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* @see GridData
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*
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*/
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public class GridLayout extends AbstractLayout {
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/**
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* numColumns specifies the number of cell columns in the layout.
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*
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* The default value is 1.
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*/
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public int numColumns = 1;
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/**
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* makeColumnsEqualWidth specifies whether all columns in the layout will be
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* forced to have the same width.
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*
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* The default value is false.
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*/
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public boolean makeColumnsEqualWidth = false;
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/**
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* marginWidth specifies the number of pixels of horizontal margin that will
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* be placed along the left and right edges of the layout.
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*
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* The default value is 5.
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*/
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public int marginWidth = 5;
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/**
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* marginHeight specifies the number of pixels of vertical margin that will
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* be placed along the top and bottom edges of the layout.
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*
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* The default value is 5.
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*/
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public int marginHeight = 5;
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/**
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* horizontalSpacing specifies the number of pixels between the right edge
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* of one cell and the left edge of its neighbouring cell to the right.
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*
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* The default value is 5.
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*/
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public int horizontalSpacing = 5;
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/**
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* verticalSpacing specifies the number of pixels between the bottom edge of
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* one cell and the top edge of its neighbouring cell underneath.
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*
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* The default value is 5.
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*/
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public int verticalSpacing = 5;
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/** The layout contraints */
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protected Map constraints = new HashMap();
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/**
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* Default Constructor
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*/
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public GridLayout() {
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super();
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}
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/**
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* Constructs a new instance of this class given the number of columns, and
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* whether or not the columns should be forced to have the same width.
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*
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* @param numColumns
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* the number of columns in the grid
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* @param makeColumnsEqualWidth
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* whether or not the columns will have equal width
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*
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*/
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public GridLayout(int numColumns, boolean makeColumnsEqualWidth) {
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this.numColumns = numColumns;
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this.makeColumnsEqualWidth = makeColumnsEqualWidth;
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}
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/**
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* @param child
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* @param wHint
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* @param hHint
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* @return the child size.
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*/
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protected Dimension getChildSize(IFigure child, int wHint, int hHint) {
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return child.getPreferredSize(wHint, hHint);
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}
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GridData getData(IFigure[][] grid, int row, int column, int rowCount,
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int columnCount, boolean first) {
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IFigure figure = grid[row][column];
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if (figure != null) {
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GridData data = (GridData) getConstraint(figure);
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int hSpan = Math.max(1, Math.min(data.horizontalSpan, columnCount));
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int vSpan = Math.max(1, data.verticalSpan);
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int i = first ? row + vSpan - 1 : row - vSpan + 1;
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int j = first ? column + hSpan - 1 : column - hSpan + 1;
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if (0 <= i && i < rowCount) {
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if (0 <= j && j < columnCount) {
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if (figure == grid[i][j])
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return data;
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}
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}
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}
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return null;
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}
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void initChildren(IFigure container) {
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List children = container.getChildren();
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for (int i = 0; i < children.size(); i++) {
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IFigure child = (IFigure) children.get(i);
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if (child.getLayoutManager() == null)
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child.setLayoutManager(this);
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}
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}
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/*
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* (non-Javadoc)
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*
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* @see
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* org.eclipse.draw2d.AbstractLayout#calculatePreferredSize(org.eclipse.
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* draw2d.IFigure, int, int)
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*/
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protected Dimension calculatePreferredSize(IFigure container, int wHint,
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int hHint) {
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Dimension size = layout(container, false, 0, 0, wHint, hHint, /* flushCache */
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true);
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if (wHint != SWT.DEFAULT)
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size.width = wHint;
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if (hHint != SWT.DEFAULT)
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size.height = hHint;
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/*
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* Adjust for the size of the border
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*/
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size.expand(container.getInsets().getWidth(), container.getInsets()
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.getHeight());
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size.union(getBorderPreferredSize(container));
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return size;
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}
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/*
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* (non-Javadoc)
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*
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* @see org.eclipse.draw2d.LayoutManager#layout(org.eclipse.draw2d.IFigure)
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*/
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public void layout(IFigure container) {
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// initChildren( container);
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Rectangle rect = container.getClientArea();
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layout(container, true, rect.x, rect.y, rect.width, rect.height, /* flushCache */
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true);
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}
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Dimension layout(IFigure container, boolean move, int x, int y, int width,
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int height, boolean flushCache) {
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if (numColumns < 1)
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return new Dimension(marginWidth * 2, marginHeight * 2);
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List children = container.getChildren();
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for (int i = 0; i < children.size(); i++) {
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IFigure child = (IFigure) children.get(i);
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GridData data = (GridData) getConstraint(child);
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if (data == null)
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setConstraint(child, data = new GridData());
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if (flushCache)
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data.flushCache();
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data.computeSize(child, flushCache);
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}
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/* Build the grid */
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int row = 0, column = 0, rowCount = 0, columnCount = numColumns;
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IFigure[][] grid = new IFigure[4][columnCount];
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for (int i = 0; i < children.size(); i++) {
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IFigure child = (IFigure) children.get(i);
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GridData data = (GridData) getConstraint(child);
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int hSpan = Math.max(1, Math.min(data.horizontalSpan, columnCount));
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int vSpan = Math.max(1, data.verticalSpan);
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while (true) {
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int lastRow = row + vSpan;
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if (lastRow >= grid.length) {
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IFigure[][] newGrid = new IFigure[lastRow + 4][columnCount];
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System.arraycopy(grid, 0, newGrid, 0, grid.length);
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grid = newGrid;
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}
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if (grid[row] == null) {
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grid[row] = new IFigure[columnCount];
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}
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while (column < columnCount && grid[row][column] != null) {
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column++;
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}
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int endCount = column + hSpan;
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if (endCount <= columnCount) {
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int index = column;
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while (index < endCount && grid[row][index] == null) {
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index++;
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}
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if (index == endCount)
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break;
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column = index;
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}
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if (column + hSpan >= columnCount) {
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column = 0;
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row++;
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}
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}
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for (int j = 0; j < vSpan; j++) {
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if (grid[row + j] == null) {
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grid[row + j] = new IFigure[columnCount];
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}
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for (int k = 0; k < hSpan; k++) {
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grid[row + j][column + k] = child;
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}
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}
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rowCount = Math.max(rowCount, row + vSpan);
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column += hSpan;
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}
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/* Column widths */
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int availableWidth = width - horizontalSpacing * (columnCount - 1)
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- marginWidth * 2;
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int expandCount = 0;
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int[] widths = new int[columnCount];
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int[] minWidths = new int[columnCount];
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boolean[] expandColumn = new boolean[columnCount];
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for (int j = 0; j < columnCount; j++) {
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for (int i = 0; i < rowCount; i++) {
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GridData data = getData(grid, i, j, rowCount, columnCount, true);
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if (data != null) {
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int hSpan = Math.max(1,
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Math.min(data.horizontalSpan, columnCount));
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if (hSpan == 1) {
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int w = data.cacheWidth + data.horizontalIndent;
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widths[j] = Math.max(widths[j], w);
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if (data.grabExcessHorizontalSpace) {
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if (!expandColumn[j])
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expandCount++;
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expandColumn[j] = true;
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}
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if (data.widthHint != SWT.DEFAULT
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|| !data.grabExcessHorizontalSpace) {
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minWidths[j] = Math.max(minWidths[j], w);
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}
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}
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}
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}
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for (int i = 0; i < rowCount; i++) {
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GridData data = getData(grid, i, j, rowCount, columnCount,
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false);
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if (data != null) {
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int hSpan = Math.max(1,
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Math.min(data.horizontalSpan, columnCount));
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if (hSpan > 1) {
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int spanWidth = 0, spanMinWidth = 0, spanExpandCount = 0;
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for (int k = 0; k < hSpan; k++) {
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spanWidth += widths[j - k];
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spanMinWidth += minWidths[j - k];
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if (expandColumn[j - k])
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spanExpandCount++;
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}
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if (data.grabExcessHorizontalSpace
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&& spanExpandCount == 0) {
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expandCount++;
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expandColumn[j] = true;
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}
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int w = data.cacheWidth + data.horizontalIndent
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- spanWidth - (hSpan - 1) * horizontalSpacing;
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if (w > 0) {
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if (spanExpandCount == 0) {
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widths[j] += w;
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} else {
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int delta = w / spanExpandCount;
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int remainder = w % spanExpandCount, last = -1;
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for (int k = 0; k < hSpan; k++) {
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if (expandColumn[j - k]) {
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widths[last = j - k] += delta;
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}
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}
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if (last > -1)
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widths[last] += remainder;
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}
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}
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if (data.widthHint != SWT.DEFAULT
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|| !data.grabExcessHorizontalSpace) {
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w = data.cacheWidth + data.horizontalIndent
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- spanMinWidth - (hSpan - 1)
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* horizontalSpacing;
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if (w > 0) {
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if (spanExpandCount == 0) {
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minWidths[j] += w;
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} else {
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int delta = w / spanExpandCount;
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int remainder = w % spanExpandCount, last = -1;
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for (int k = 0; k < hSpan; k++) {
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if (expandColumn[j - k]) {
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minWidths[last = j - k] += delta;
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}
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}
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if (last > -1)
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minWidths[last] += remainder;
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}
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}
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}
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}
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}
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}
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}
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if (makeColumnsEqualWidth) {
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int minColumnWidth = 0;
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int columnWidth = 0;
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for (int i = 0; i < columnCount; i++) {
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minColumnWidth = Math.max(minColumnWidth, minWidths[i]);
|
|
380
|
columnWidth = Math.max(columnWidth, widths[i]);
|
|
381
|
}
|
|
382
|
columnWidth = width == SWT.DEFAULT || expandCount == 0 ? columnWidth
|
|
383
|
: Math.max(minColumnWidth, availableWidth / columnCount);
|
|
384
|
for (int i = 0; i < columnCount; i++) {
|
|
385
|
expandColumn[i] = expandCount > 0;
|
|
386
|
widths[i] = columnWidth;
|
|
387
|
}
|
|
388
|
} else {
|
|
389
|
if (width != SWT.DEFAULT && expandCount > 0) {
|
|
390
|
int totalWidth = 0;
|
|
391
|
for (int i = 0; i < columnCount; i++) {
|
|
392
|
totalWidth += widths[i];
|
|
393
|
}
|
|
394
|
int count = expandCount;
|
|
395
|
int delta = (availableWidth - totalWidth) / count;
|
|
396
|
int remainder = (availableWidth - totalWidth) % count;
|
|
397
|
int last = -1;
|
|
398
|
while (totalWidth != availableWidth) {
|
|
399
|
for (int j = 0; j < columnCount; j++) {
|
|
400
|
if (expandColumn[j]) {
|
|
401
|
if (widths[j] + delta > minWidths[j]) {
|
|
402
|
widths[last = j] = widths[j] + delta;
|
|
403
|
} else {
|
|
404
|
widths[j] = minWidths[j];
|
|
405
|
expandColumn[j] = false;
|
|
406
|
count--;
|
|
407
|
}
|
|
408
|
}
|
|
409
|
}
|
|
410
|
if (last > -1)
|
|
411
|
widths[last] += remainder;
|
|
412
|
|
|
413
|
for (int j = 0; j < columnCount; j++) {
|
|
414
|
for (int i = 0; i < rowCount; i++) {
|
|
415
|
GridData data = getData(grid, i, j, rowCount,
|
|
416
|
columnCount, false);
|
|
417
|
if (data != null) {
|
|
418
|
int hSpan = Math.max(1, Math.min(
|
|
419
|
data.horizontalSpan, columnCount));
|
|
420
|
if (hSpan > 1) {
|
|
421
|
if (data.widthHint != SWT.DEFAULT
|
|
422
|
|| !data.grabExcessHorizontalSpace) {
|
|
423
|
int spanWidth = 0, spanExpandCount = 0;
|
|
424
|
for (int k = 0; k < hSpan; k++) {
|
|
425
|
spanWidth += widths[j - k];
|
|
426
|
if (expandColumn[j - k])
|
|
427
|
spanExpandCount++;
|
|
428
|
}
|
|
429
|
int w = data.cacheWidth
|
|
430
|
+ data.horizontalIndent
|
|
431
|
- spanWidth - (hSpan - 1)
|
|
432
|
* horizontalSpacing;
|
|
433
|
if (w > 0) {
|
|
434
|
if (spanExpandCount == 0) {
|
|
435
|
widths[j] += w;
|
|
436
|
} else {
|
|
437
|
int delta2 = w
|
|
438
|
/ spanExpandCount;
|
|
439
|
int remainder2 = w
|
|
440
|
% spanExpandCount, last2 = -1;
|
|
441
|
for (int k = 0; k < hSpan; k++) {
|
|
442
|
if (expandColumn[j - k]) {
|
|
443
|
widths[last2 = j - k] += delta2;
|
|
444
|
}
|
|
445
|
}
|
|
446
|
if (last2 > -1)
|
|
447
|
widths[last2] += remainder2;
|
|
448
|
}
|
|
449
|
}
|
|
450
|
}
|
|
451
|
}
|
|
452
|
}
|
|
453
|
}
|
|
454
|
}
|
|
455
|
if (count == 0)
|
|
456
|
break;
|
|
457
|
totalWidth = 0;
|
|
458
|
for (int i = 0; i < columnCount; i++) {
|
|
459
|
totalWidth += widths[i];
|
|
460
|
}
|
|
461
|
delta = (availableWidth - totalWidth) / count;
|
|
462
|
remainder = (availableWidth - totalWidth) % count;
|
|
463
|
last = -1;
|
|
464
|
}
|
|
465
|
}
|
|
466
|
}
|
|
467
|
|
|
468
|
/* Wrapping */
|
|
469
|
GridData[] flush = null;
|
|
470
|
int flushLength = 0;
|
|
471
|
if (width != SWT.DEFAULT) {
|
|
472
|
for (int j = 0; j < columnCount; j++) {
|
|
473
|
for (int i = 0; i < rowCount; i++) {
|
|
474
|
GridData data = getData(grid, i, j, rowCount, columnCount,
|
|
475
|
false);
|
|
476
|
if (data != null) {
|
|
477
|
if (data.heightHint == SWT.DEFAULT) {
|
|
478
|
IFigure child = grid[i][j];
|
|
479
|
// TEMPORARY CODE
|
|
480
|
int hSpan = Math.max(1,
|
|
481
|
Math.min(data.horizontalSpan, columnCount));
|
|
482
|
int currentWidth = 0;
|
|
483
|
for (int k = 0; k < hSpan; k++) {
|
|
484
|
currentWidth += widths[j - k];
|
|
485
|
}
|
|
486
|
currentWidth += (hSpan - 1) * horizontalSpacing
|
|
487
|
- data.horizontalIndent;
|
|
488
|
if ((currentWidth != data.cacheWidth && data.horizontalAlignment == SWT.FILL)
|
|
489
|
|| (data.cacheWidth > currentWidth)) {
|
|
490
|
int trim = 0;
|
|
491
|
/*
|
|
492
|
* // *Note*: Left this in place from SWT //
|
|
493
|
* GridLayout. Not sure if Draw2D Borders or //
|
|
494
|
* Scrollbars 'trim' will need to be takeninto
|
|
495
|
* account.
|
|
496
|
*
|
|
497
|
* if (child instanceof Group) { Group g
|
|
498
|
* =(Group)child; trim = g.getSize ().x -
|
|
499
|
* g.getClientArea ().width; } else if (child
|
|
500
|
* instanceof Scrollable) { Rectangle rect =
|
|
501
|
* ((Scrollable) child).computeTrim (0, 0, 0,0);
|
|
502
|
* trim = rect.width; } else { trim =
|
|
503
|
* child.getBorderWidth () * 2; }
|
|
504
|
*/
|
|
505
|
int oldWidthHint = data.widthHint;
|
|
506
|
data.widthHint = Math.max(0, currentWidth
|
|
507
|
- trim);
|
|
508
|
data.cacheWidth = data.cacheHeight = SWT.DEFAULT;
|
|
509
|
data.computeSize(child, false);
|
|
510
|
data.widthHint = oldWidthHint;
|
|
511
|
if (flush == null)
|
|
512
|
flush = new GridData[children.size()];
|
|
513
|
flush[flushLength++] = data;
|
|
514
|
}
|
|
515
|
}
|
|
516
|
}
|
|
517
|
}
|
|
518
|
}
|
|
519
|
}
|
|
520
|
|
|
521
|
/* Row heights */
|
|
522
|
int availableHeight = height - verticalSpacing * (rowCount - 1)
|
|
523
|
- marginHeight * 2;
|
|
524
|
expandCount = 0;
|
|
525
|
int[] heights = new int[rowCount];
|
|
526
|
int[] minHeights = new int[rowCount];
|
|
527
|
boolean[] expandRow = new boolean[rowCount];
|
|
528
|
for (int i = 0; i < rowCount; i++) {
|
|
529
|
for (int j = 0; j < columnCount; j++) {
|
|
530
|
GridData data = getData(grid, i, j, rowCount, columnCount, true);
|
|
531
|
if (data != null) {
|
|
532
|
int vSpan = Math.max(1,
|
|
533
|
Math.min(data.verticalSpan, rowCount));
|
|
534
|
if (vSpan == 1) {
|
|
535
|
int h = data.cacheHeight; // + data.verticalIndent;
|
|
536
|
heights[i] = Math.max(heights[i], h);
|
|
537
|
if (data.grabExcessVerticalSpace) {
|
|
538
|
if (!expandRow[i])
|
|
539
|
expandCount++;
|
|
540
|
expandRow[i] = true;
|
|
541
|
}
|
|
542
|
if (data.heightHint != SWT.DEFAULT
|
|
543
|
|| !data.grabExcessVerticalSpace) {
|
|
544
|
minHeights[i] = Math.max(minHeights[i], h);
|
|
545
|
}
|
|
546
|
}
|
|
547
|
}
|
|
548
|
}
|
|
549
|
for (int j = 0; j < columnCount; j++) {
|
|
550
|
GridData data = getData(grid, i, j, rowCount, columnCount,
|
|
551
|
false);
|
|
552
|
if (data != null) {
|
|
553
|
int vSpan = Math.max(1,
|
|
554
|
Math.min(data.verticalSpan, rowCount));
|
|
555
|
if (vSpan > 1) {
|
|
556
|
int spanHeight = 0, spanMinHeight = 0, spanExpandCount = 0;
|
|
557
|
for (int k = 0; k < vSpan; k++) {
|
|
558
|
spanHeight += heights[i - k];
|
|
559
|
spanMinHeight += minHeights[i - k];
|
|
560
|
if (expandRow[i - k])
|
|
561
|
spanExpandCount++;
|
|
562
|
}
|
|
563
|
if (data.grabExcessVerticalSpace
|
|
564
|
&& spanExpandCount == 0) {
|
|
565
|
expandCount++;
|
|
566
|
expandRow[i] = true;
|
|
567
|
}
|
|
568
|
int h = data.cacheHeight - spanHeight - (vSpan - 1)
|
|
569
|
* verticalSpacing; // + data.verticalalIndent
|
|
570
|
if (h > 0) {
|
|
571
|
if (spanExpandCount == 0) {
|
|
572
|
heights[i] += h;
|
|
573
|
} else {
|
|
574
|
int delta = h / spanExpandCount;
|
|
575
|
int remainder = h % spanExpandCount, last = -1;
|
|
576
|
for (int k = 0; k < vSpan; k++) {
|
|
577
|
if (expandRow[i - k]) {
|
|
578
|
heights[last = i - k] += delta;
|
|
579
|
}
|
|
580
|
}
|
|
581
|
if (last > -1)
|
|
582
|
heights[last] += remainder;
|
|
583
|
}
|
|
584
|
}
|
|
585
|
if (data.heightHint != SWT.DEFAULT
|
|
586
|
|| !data.grabExcessVerticalSpace) {
|
|
587
|
h = data.cacheHeight - spanMinHeight - (vSpan - 1)
|
|
588
|
* verticalSpacing; // + data.verticalIndent
|
|
589
|
if (h > 0) {
|
|
590
|
if (spanExpandCount == 0) {
|
|
591
|
minHeights[i] += h;
|
|
592
|
} else {
|
|
593
|
int delta = h / spanExpandCount;
|
|
594
|
int remainder = h % spanExpandCount, last = -1;
|
|
595
|
for (int k = 0; k < vSpan; k++) {
|
|
596
|
if (expandRow[i - k]) {
|
|
597
|
minHeights[last = i - k] += delta;
|
|
598
|
}
|
|
599
|
}
|
|
600
|
if (last > -1)
|
|
601
|
minHeights[last] += remainder;
|
|
602
|
}
|
|
603
|
}
|
|
604
|
}
|
|
605
|
}
|
|
606
|
}
|
|
607
|
}
|
|
608
|
}
|
|
609
|
if (height != SWT.DEFAULT && expandCount > 0) {
|
|
610
|
int totalHeight = 0;
|
|
611
|
for (int i = 0; i < rowCount; i++) {
|
|
612
|
totalHeight += heights[i];
|
|
613
|
}
|
|
614
|
int count = expandCount;
|
|
615
|
int delta = (availableHeight - totalHeight) / count;
|
|
616
|
int remainder = (availableHeight - totalHeight) % count;
|
|
617
|
int last = -1;
|
|
618
|
while (totalHeight != availableHeight) {
|
|
619
|
for (int i = 0; i < rowCount; i++) {
|
|
620
|
if (expandRow[i]) {
|
|
621
|
if (heights[i] + delta > minHeights[i]) {
|
|
622
|
heights[last = i] = heights[i] + delta;
|
|
623
|
} else {
|
|
624
|
heights[i] = minHeights[i];
|
|
625
|
expandRow[i] = false;
|
|
626
|
count--;
|
|
627
|
}
|
|
628
|
}
|
|
629
|
}
|
|
630
|
if (last > -1)
|
|
631
|
heights[last] += remainder;
|
|
632
|
|
|
633
|
for (int i = 0; i < rowCount; i++) {
|
|
634
|
for (int j = 0; j < columnCount; j++) {
|
|
635
|
GridData data = getData(grid, i, j, rowCount,
|
|
636
|
columnCount, false);
|
|
637
|
if (data != null) {
|
|
638
|
int vSpan = Math.max(1,
|
|
639
|
Math.min(data.verticalSpan, rowCount));
|
|
640
|
if (vSpan > 1) {
|
|
641
|
if (data.heightHint != SWT.DEFAULT
|
|
642
|
|| !data.grabExcessVerticalSpace) {
|
|
643
|
int spanHeight = 0, spanExpandCount = 0;
|
|
644
|
for (int k = 0; k < vSpan; k++) {
|
|
645
|
spanHeight += heights[i - k];
|
|
646
|
if (expandRow[i - k])
|
|
647
|
spanExpandCount++;
|
|
648
|
}
|
|
649
|
int h = data.cacheHeight - spanHeight
|
|
650
|
- (vSpan - 1) * verticalSpacing; // +
|
|
651
|
// data.verticalIndent
|
|
652
|
if (h > 0) {
|
|
653
|
if (spanExpandCount == 0) {
|
|
654
|
heights[i] += h;
|
|
655
|
} else {
|
|
656
|
int delta2 = h / spanExpandCount;
|
|
657
|
int remainder2 = h
|
|
658
|
% spanExpandCount, last2 = -1;
|
|
659
|
for (int k = 0; k < vSpan; k++) {
|
|
660
|
if (expandRow[i - k]) {
|
|
661
|
heights[last2 = i - k] += delta2;
|
|
662
|
}
|
|
663
|
}
|
|
664
|
if (last2 > -1)
|
|
665
|
heights[last2] += remainder2;
|
|
666
|
}
|
|
667
|
}
|
|
668
|
}
|
|
669
|
}
|
|
670
|
}
|
|
671
|
}
|
|
672
|
}
|
|
673
|
if (count == 0)
|
|
674
|
break;
|
|
675
|
totalHeight = 0;
|
|
676
|
for (int i = 0; i < rowCount; i++) {
|
|
677
|
totalHeight += heights[i];
|
|
678
|
}
|
|
679
|
delta = (availableHeight - totalHeight) / count;
|
|
680
|
remainder = (availableHeight - totalHeight) % count;
|
|
681
|
last = -1;
|
|
682
|
}
|
|
683
|
}
|
|
684
|
|
|
685
|
/* Position the IFigures */
|
|
686
|
if (move) {
|
|
687
|
int gridY = y + marginHeight;
|
|
688
|
for (int i = 0; i < rowCount; i++) {
|
|
689
|
int gridX = x + marginWidth;
|
|
690
|
for (int j = 0; j < columnCount; j++) {
|
|
691
|
GridData data = getData(grid, i, j, rowCount, columnCount,
|
|
692
|
true);
|
|
693
|
if (data != null) {
|
|
694
|
int hSpan = Math.max(1,
|
|
695
|
Math.min(data.horizontalSpan, columnCount));
|
|
696
|
int vSpan = Math.max(1, data.verticalSpan);
|
|
697
|
int cellWidth = 0, cellHeight = 0;
|
|
698
|
for (int k = 0; k < hSpan; k++) {
|
|
699
|
cellWidth += widths[j + k];
|
|
700
|
}
|
|
701
|
for (int k = 0; k < vSpan; k++) {
|
|
702
|
cellHeight += heights[i + k];
|
|
703
|
}
|
|
704
|
cellWidth += horizontalSpacing * (hSpan - 1);
|
|
705
|
int childX = gridX + data.horizontalIndent;
|
|
706
|
int childWidth = Math.min(data.cacheWidth, cellWidth);
|
|
707
|
switch (data.horizontalAlignment) {
|
|
708
|
case SWT.CENTER:
|
|
709
|
case GridData.CENTER:
|
|
710
|
childX = gridX
|
|
711
|
+ Math.max(0, (cellWidth - childWidth) / 2);
|
|
712
|
break;
|
|
713
|
case SWT.RIGHT:
|
|
714
|
case SWT.END:
|
|
715
|
case GridData.END:
|
|
716
|
childX = gridX
|
|
717
|
+ Math.max(0, cellWidth - childWidth);
|
|
718
|
break;
|
|
719
|
case SWT.FILL:
|
|
720
|
childWidth = cellWidth - data.horizontalIndent;
|
|
721
|
break;
|
|
722
|
}
|
|
723
|
cellHeight += verticalSpacing * (vSpan - 1);
|
|
724
|
int childY = gridY; // + data.verticalIndent;
|
|
725
|
int childHeight = Math
|
|
726
|
.min(data.cacheHeight, cellHeight);
|
|
727
|
switch (data.verticalAlignment) {
|
|
728
|
case SWT.CENTER:
|
|
729
|
case GridData.CENTER:
|
|
730
|
childY = gridY
|
|
731
|
+ Math.max(0,
|
|
732
|
(cellHeight - childHeight) / 2);
|
|
733
|
break;
|
|
734
|
case SWT.BOTTOM:
|
|
735
|
case SWT.END:
|
|
736
|
case GridData.END:
|
|
737
|
childY = gridY
|
|
738
|
+ Math.max(0, cellHeight - childHeight);
|
|
739
|
break;
|
|
740
|
case SWT.FILL:
|
|
741
|
childHeight = cellHeight; // -
|
|
742
|
// data.verticalIndent;
|
|
743
|
break;
|
|
744
|
}
|
|
745
|
IFigure child = grid[i][j];
|
|
746
|
if (child != null) {
|
|
747
|
// following param could be replaced by
|
|
748
|
// Rectangle.SINGLETON
|
|
749
|
child.setBounds(new Rectangle(childX, childY,
|
|
750
|
childWidth, childHeight));
|
|
751
|
}
|
|
752
|
}
|
|
753
|
gridX += widths[j] + horizontalSpacing;
|
|
754
|
}
|
|
755
|
gridY += heights[i] + verticalSpacing;
|
|
756
|
}
|
|
757
|
}
|
|
758
|
|
|
759
|
// clean up cache
|
|
760
|
for (int i = 0; i < flushLength; i++) {
|
|
761
|
flush[i].cacheWidth = flush[i].cacheHeight = -1;
|
|
762
|
}
|
|
763
|
|
|
764
|
int totalDefaultWidth = 0;
|
|
765
|
int totalDefaultHeight = 0;
|
|
766
|
for (int i = 0; i < columnCount; i++) {
|
|
767
|
totalDefaultWidth += widths[i];
|
|
768
|
}
|
|
769
|
for (int i = 0; i < rowCount; i++) {
|
|
770
|
totalDefaultHeight += heights[i];
|
|
771
|
}
|
|
772
|
totalDefaultWidth += horizontalSpacing * (columnCount - 1)
|
|
773
|
+ marginWidth * 2;
|
|
774
|
totalDefaultHeight += verticalSpacing * (rowCount - 1) + marginHeight
|
|
775
|
* 2;
|
|
776
|
return new Dimension(totalDefaultWidth, totalDefaultHeight);
|
|
777
|
}
|
|
778
|
|
|
779
|
/*
|
|
780
|
* (non-Javadoc)
|
|
781
|
*
|
|
782
|
* @see
|
|
783
|
* org.eclipse.draw2d.LayoutManager#getConstraint(org.eclipse.draw2d.IFigure
|
|
784
|
* )
|
|
785
|
*/
|
|
786
|
public Object getConstraint(IFigure child) {
|
|
787
|
return constraints.get(child);
|
|
788
|
}
|
|
789
|
|
|
790
|
/**
|
|
791
|
* Sets the layout constraint of the given figure. The constraints can only
|
|
792
|
* be of type {@link GridData}.
|
|
793
|
*
|
|
794
|
* @see LayoutManager#setConstraint(IFigure, Object)
|
|
795
|
*/
|
|
796
|
public void setConstraint(IFigure figure, Object newConstraint) {
|
|
797
|
super.setConstraint(figure, newConstraint);
|
|
798
|
if (newConstraint != null) {
|
|
799
|
constraints.put(figure, newConstraint);
|
|
800
|
|
|
801
|
}
|
|
802
|
}
|
|
803
|
|
|
804
|
}
|