[25584] | 1 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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| 2 | * JFlex 1.4.3 *
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| 3 | * Copyright (C) 1998-2009 Gerwin Klein <[email protected]> *
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| 4 | * All rights reserved. *
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| 5 | * *
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| 6 | * This program is free software; you can redistribute it and/or modify *
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| 7 | * it under the terms of the GNU General Public License. See the file *
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| 8 | * COPYRIGHT for more information. *
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| 9 | * *
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| 10 | * This program is distributed in the hope that it will be useful, *
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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| 13 | * GNU General Public License for more details. *
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| 14 | * *
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| 15 | * You should have received a copy of the GNU General Public License along *
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| 16 | * with this program; if not, write to the Free Software Foundation, Inc., *
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| 17 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
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| 18 | * *
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| 19 | * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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| 20 |
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| 21 | package JFlex.gui;
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| 22 |
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| 23 | import java.awt.*;
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| 24 | import java.util.*;
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| 25 |
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| 26 | /**
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| 27 | * Grid layout manager like GridLayout but with predefinable
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| 28 | * grid size.
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| 29 | *
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| 30 | * @author Gerwin Klein
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| 31 | * @version JFlex 1.4.3, $Revision: 433 $, $Date: 2009-01-31 19:52:34 +1100 (Sat, 31 Jan 2009) $
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| 32 | */
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| 33 | public class GridPanel extends Panel implements Handles {
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| 34 |
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| 35 | private int cols;
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| 36 | private int rows;
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| 37 |
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| 38 | private int hgap;
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| 39 | private int vgap;
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| 40 |
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| 41 | private Vector constraints = new Vector();
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| 42 | private Insets insets = new Insets(0,0,0,0);
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| 43 |
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| 44 | public GridPanel(int cols, int rows) {
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| 45 | this(cols, rows, 0, 0);
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| 46 | }
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| 47 |
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| 48 | public GridPanel(int cols, int rows, int hgap, int vgap) {
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| 49 | this.cols = cols;
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| 50 | this.rows = rows;
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| 51 | this.hgap = hgap;
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| 52 | this.vgap = vgap;
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| 53 | }
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| 54 |
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| 55 | public void doLayout() {
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| 56 | Dimension size = getSize();
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| 57 | size.height -= insets.top+insets.bottom;
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| 58 | size.width -= insets.left+insets.right;
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| 59 |
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| 60 | float cellWidth = size.width/cols;
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| 61 | float cellHeight = size.height/rows;
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| 62 |
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| 63 | for (int i = 0; i < constraints.size(); i++) {
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| 64 | GridPanelConstraint c = (GridPanelConstraint) constraints.elementAt(i);
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| 65 |
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| 66 | float x = cellWidth * c.x + insets.left + hgap/2;
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| 67 | float y = cellHeight * c.y + insets.right + vgap/2;
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| 68 |
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| 69 | float width, height;
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| 70 |
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| 71 | if (c.handle == FILL) {
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| 72 | width = (cellWidth-hgap) * c.width;
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| 73 | height = (cellHeight-vgap) * c.height;
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| 74 | }
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| 75 | else {
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| 76 | Dimension d = c.component.getPreferredSize();
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| 77 | width = d.width;
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| 78 | height = d.height;
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| 79 | }
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| 80 |
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| 81 | switch (c.handle) {
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| 82 | case TOP_CENTER:
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| 83 | x+= (cellWidth+width)/2;
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| 84 | break;
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| 85 | case TOP_RIGHT:
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| 86 | x+= cellWidth-width;
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| 87 | break;
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| 88 | case CENTER_LEFT:
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| 89 | y+= (cellHeight+height)/2;
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| 90 | break;
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| 91 | case CENTER:
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| 92 | x+= (cellWidth+width)/2;
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| 93 | y+= (cellHeight+height)/2;
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| 94 | break;
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| 95 | case CENTER_RIGHT:
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| 96 | y+= (cellHeight+height)/2;
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| 97 | x+= cellWidth-width;
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| 98 | break;
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| 99 | case BOTTOM:
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| 100 | y+= cellHeight-height;
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| 101 | break;
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| 102 | case BOTTOM_CENTER:
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| 103 | x+= (cellWidth+width)/2;
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| 104 | y+= cellHeight-height;
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| 105 | break;
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| 106 | case BOTTOM_RIGHT:
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| 107 | y+= cellHeight-height;
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| 108 | x+= cellWidth-width;
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| 109 | break;
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| 110 | }
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| 111 |
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| 112 | c.component.setBounds(new Rectangle((int)x, (int)y, (int)width, (int)height));
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| 113 | }
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| 114 | }
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| 115 |
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| 116 | public Dimension getPreferredSize() {
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| 117 | float dy = 0;
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| 118 | float dx = 0;
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| 119 |
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| 120 | for (int i = 0; i < constraints.size(); i++) {
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| 121 | GridPanelConstraint c = (GridPanelConstraint) constraints.elementAt(i);
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| 122 |
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| 123 | Dimension d = c.component.getPreferredSize();
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| 124 |
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| 125 | dx = Math.max(dx, d.width/c.width);
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| 126 | dy = Math.max(dy, d.height/c.height);
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| 127 | }
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| 128 |
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| 129 | dx+= hgap;
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| 130 | dy+= vgap;
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| 131 |
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| 132 | dx*= cols;
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| 133 | dy*= rows;
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| 134 |
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| 135 | dx+= insets.left+insets.right;
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| 136 | dy+= insets.top+insets.bottom;
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| 137 |
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| 138 | return new Dimension((int)dx,(int)dy);
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| 139 | }
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| 140 |
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| 141 | public void setInsets(Insets insets) {
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| 142 | this.insets = insets;
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| 143 | }
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| 144 |
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| 145 | public void add(int x, int y, Component c) {
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| 146 | add(x,y,1,1,FILL,c);
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| 147 | }
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| 148 |
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| 149 | public void add(int x, int y, int handle, Component c) {
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| 150 | add(x,y,1,1,handle,c);
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| 151 | }
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| 152 |
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| 153 | public void add(int x, int y, int dx, int dy, Component c) {
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| 154 | add(x,y,dx,dy,FILL,c);
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| 155 | }
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| 156 |
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| 157 | public void add(int x, int y, int dx, int dy, int handle, Component c) {
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| 158 | super.add(c);
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| 159 | constraints.addElement(new GridPanelConstraint(x,y,dx,dy,handle,c));
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| 160 | }
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| 161 | }
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