Mercurial > projects > dwt-win
annotate dwt/layout/FillLayout.d @ 212:ab60f3309436
reverted the char[] to String and use the an alias.
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Mon, 05 May 2008 00:12:38 +0200 |
| parents | d0bbd290530f |
| children | fd9c62a2998e |
| rev | line source |
|---|---|
| 0 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2006 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module dwt.layout.FillLayout; | |
| 14 | |
| 15 import dwt.DWT; | |
| 16 import dwt.graphics.Point; | |
| 17 import dwt.graphics.Rectangle; | |
| 18 import dwt.widgets.Control; | |
| 19 import dwt.widgets.Layout; | |
| 20 import dwt.widgets.Composite; | |
| 21 import dwt.widgets.Scrollable; | |
| 22 import dwt.layout.FillData; | |
| 23 | |
| 24 import tango.util.Convert; | |
|
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Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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parents:
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25 import dwt.dwthelper.utils; |
| 0 | 26 |
| 27 /** | |
| 28 * <code>FillLayout</code> is the simplest layout class. It lays out | |
| 29 * controls in a single row or column, forcing them to be the same size. | |
| 30 * <p> | |
| 31 * Initially, the controls will all be as tall as the tallest control, | |
| 32 * and as wide as the widest. <code>FillLayout</code> does not wrap, | |
| 33 * but you can specify margins and spacing. You might use it to | |
| 34 * lay out buttons in a task bar or tool bar, or to stack checkboxes | |
| 35 * in a <code>Group</code>. <code>FillLayout</code> can also be used | |
| 36 * when a <code>Composite</code> only has one child. For example, | |
| 37 * if a <code>Shell</code> has a single <code>Group</code> child, | |
| 38 * <code>FillLayout</code> will cause the <code>Group</code> to | |
| 39 * completely fill the <code>Shell</code> (if margins are 0). | |
| 40 * </p> | |
| 41 * <p> | |
| 42 * Example code: first a <code>FillLayout</code> is created and | |
| 43 * its type field is set, and then the layout is set into the | |
| 44 * <code>Composite</code>. Note that in a <code>FillLayout</code>, | |
| 45 * children are always the same size, and they fill all available space. | |
| 46 * <pre> | |
| 47 * FillLayout fillLayout = new FillLayout(); | |
| 48 * fillLayout.type = DWT.VERTICAL; | |
| 49 * shell.setLayout(fillLayout); | |
| 50 * </pre> | |
| 51 * </p> | |
| 52 */ | |
| 53 public final class FillLayout : Layout { | |
| 54 /** | |
| 55 * type specifies how controls will be positioned | |
| 56 * within the layout. | |
| 57 * | |
| 58 * The default value is HORIZONTAL. | |
| 59 * | |
| 60 * Possible values are: <ul> | |
| 61 * <li>HORIZONTAL: Position the controls horizontally from left to right</li> | |
| 62 * <li>VERTICAL: Position the controls vertically from top to bottom</li> | |
| 63 * </ul> | |
| 64 */ | |
| 65 public int type = DWT.HORIZONTAL; | |
| 66 | |
| 67 /** | |
| 68 * marginWidth specifies the number of pixels of horizontal margin | |
| 69 * that will be placed along the left and right edges of the layout. | |
| 70 * | |
| 71 * The default value is 0. | |
| 72 * | |
| 73 * @since 3.0 | |
| 74 */ | |
| 75 public int marginWidth = 0; | |
| 76 | |
| 77 /** | |
| 78 * marginHeight specifies the number of pixels of vertical margin | |
| 79 * that will be placed along the top and bottom edges of the layout. | |
| 80 * | |
| 81 * The default value is 0. | |
| 82 * | |
| 83 * @since 3.0 | |
| 84 */ | |
| 85 public int marginHeight = 0; | |
| 86 | |
| 87 /** | |
| 88 * spacing specifies the number of pixels between the edge of one cell | |
| 89 * and the edge of its neighbouring cell. | |
| 90 * | |
| 91 * The default value is 0. | |
| 92 * | |
| 93 * @since 3.0 | |
| 94 */ | |
| 95 public int spacing = 0; | |
| 96 | |
| 97 /** | |
| 98 * Constructs a new instance of this class. | |
| 99 */ | |
| 100 public this () { | |
| 101 } | |
| 102 | |
| 103 /** | |
| 104 * Constructs a new instance of this class given the type. | |
| 105 * | |
| 106 * @param type the type of fill layout | |
| 107 * | |
| 108 * @since 2.0 | |
| 109 */ | |
| 110 public this (int type) { | |
| 111 this.type = type; | |
| 112 } | |
| 113 | |
|
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Added override and alias, first chunk. Thanks torhu for doing this patch.
Frank Benoit <benoit@tionex.de>
parents:
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diff
changeset
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114 override protected Point computeSize (Composite composite, int wHint, int hHint, bool flushCache) { |
| 0 | 115 Control [] children = composite.getChildren (); |
| 116 int count = children.length; | |
| 117 int maxWidth = 0, maxHeight = 0; | |
| 118 for (int i=0; i<count; i++) { | |
| 119 Control child = children [i]; | |
| 120 int w = wHint, h = hHint; | |
| 121 if (count > 0) { | |
| 122 if (type is DWT.HORIZONTAL && wHint !is DWT.DEFAULT) { | |
| 123 w = Math.max (0, (wHint - (count - 1) * spacing) / count); | |
| 124 } | |
| 125 if (type is DWT.VERTICAL && hHint !is DWT.DEFAULT) { | |
| 126 h = Math.max (0, (hHint - (count - 1) * spacing) / count); | |
| 127 } | |
| 128 } | |
| 129 Point size = computeChildSize (child, w, h, flushCache); | |
| 130 maxWidth = Math.max (maxWidth, size.x); | |
| 131 maxHeight = Math.max (maxHeight, size.y); | |
| 132 } | |
| 133 int width = 0, height = 0; | |
| 134 if (type is DWT.HORIZONTAL) { | |
| 135 width = count * maxWidth; | |
| 136 if (count !is 0) width += (count - 1) * spacing; | |
| 137 height = maxHeight; | |
| 138 } else { | |
| 139 width = maxWidth; | |
| 140 height = count * maxHeight; | |
| 141 if (count !is 0) height += (count - 1) * spacing; | |
| 142 } | |
| 143 width += marginWidth * 2; | |
| 144 height += marginHeight * 2; | |
| 145 if (wHint !is DWT.DEFAULT) width = wHint; | |
| 146 if (hHint !is DWT.DEFAULT) height = hHint; | |
| 147 return new Point (width, height); | |
| 148 } | |
| 149 | |
| 150 Point computeChildSize (Control control, int wHint, int hHint, bool flushCache) { | |
| 151 FillData data = cast(FillData)control.getLayoutData (); | |
| 152 if (data is null) { | |
| 153 data = new FillData (); | |
| 154 control.setLayoutData (data); | |
| 155 } | |
| 156 Point size = null; | |
| 157 if (wHint is DWT.DEFAULT && hHint is DWT.DEFAULT) { | |
| 158 size = data.computeSize (control, wHint, hHint, flushCache); | |
| 159 } else { | |
| 160 // TEMPORARY CODE | |
| 161 int trimX, trimY; | |
| 162 if ( auto sa = cast(Scrollable)control ) { | |
| 163 Rectangle rect = sa.computeTrim (0, 0, 0, 0); | |
| 164 trimX = rect.width; | |
| 165 trimY = rect.height; | |
| 166 } else { | |
| 167 trimX = trimY = control.getBorderWidth () * 2; | |
| 168 } | |
| 169 int w = wHint is DWT.DEFAULT ? wHint : Math.max (0, wHint - trimX); | |
| 170 int h = hHint is DWT.DEFAULT ? hHint : Math.max (0, hHint - trimY); | |
| 171 size = data.computeSize (control, w, h, flushCache); | |
| 172 } | |
| 173 return size; | |
| 174 } | |
| 175 | |
|
48
9a64a7781bab
Added override and alias, first chunk. Thanks torhu for doing this patch.
Frank Benoit <benoit@tionex.de>
parents:
31
diff
changeset
|
176 override protected bool flushCache (Control control) { |
| 0 | 177 Object data = control.getLayoutData(); |
| 178 if (data !is null) (cast(FillData)data).flushCache(); | |
| 179 return true; | |
| 180 } | |
| 181 | |
|
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ab60f3309436
reverted the char[] to String and use the an alias.
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parents:
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changeset
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182 String getName () { |
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ab60f3309436
reverted the char[] to String and use the an alias.
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183 String string = this.classinfo.name; |
| 193 | 184 int index = string.lastIndexOf( '.'); |
| 185 if (index is -1 ) return string; | |
| 0 | 186 return string[ index + 1 .. string.length ]; |
| 187 } | |
| 188 | |
|
48
9a64a7781bab
Added override and alias, first chunk. Thanks torhu for doing this patch.
Frank Benoit <benoit@tionex.de>
parents:
31
diff
changeset
|
189 override protected void layout (Composite composite, bool flushCache) { |
| 0 | 190 Rectangle rect = composite.getClientArea (); |
| 191 Control [] children = composite.getChildren (); | |
| 192 int count = children.length; | |
| 193 if (count is 0) return; | |
| 194 int width = rect.width - marginWidth * 2; | |
| 195 int height = rect.height - marginHeight * 2; | |
| 196 if (type is DWT.HORIZONTAL) { | |
| 197 width -= (count - 1) * spacing; | |
| 198 int x = rect.x + marginWidth, extra = width % count; | |
| 199 int y = rect.y + marginHeight, cellWidth = width / count; | |
| 200 for (int i=0; i<count; i++) { | |
| 201 Control child = children [i]; | |
| 202 int childWidth = cellWidth; | |
| 203 if (i is 0) { | |
| 204 childWidth += extra / 2; | |
| 205 } else { | |
| 206 if (i is count - 1) childWidth += (extra + 1) / 2; | |
| 207 } | |
| 208 child.setBounds (x, y, childWidth, height); | |
| 209 x += childWidth + spacing; | |
| 210 } | |
| 211 } else { | |
| 212 height -= (count - 1) * spacing; | |
| 213 int x = rect.x + marginWidth, cellHeight = height / count; | |
| 214 int y = rect.y + marginHeight, extra = height % count; | |
| 215 for (int i=0; i<count; i++) { | |
| 216 Control child = children [i]; | |
| 217 int childHeight = cellHeight; | |
| 218 if (i is 0) { | |
| 219 childHeight += extra / 2; | |
| 220 } else { | |
| 221 if (i is count - 1) childHeight += (extra + 1) / 2; | |
| 222 } | |
| 223 child.setBounds (x, y, width, childHeight); | |
| 224 y += childHeight + spacing; | |
| 225 } | |
| 226 } | |
| 227 } | |
| 228 | |
| 229 /** | |
| 230 * Returns a string containing a concise, human-readable | |
| 231 * description of the receiver. | |
| 232 * | |
| 233 * @return a string representation of the layout | |
| 234 */ | |
|
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ab60f3309436
reverted the char[] to String and use the an alias.
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parents:
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diff
changeset
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235 override public String toString () { |
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ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
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diff
changeset
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236 String string = getName () ~ " {"; |
| 0 | 237 string ~= "type="~((type is DWT.VERTICAL) ? "DWT.VERTICAL" : "DWT.HORIZONTAL")~" "; |
|
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ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
193
diff
changeset
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238 if (marginWidth !is 0) string ~= "marginWidth="~to!(String)(marginWidth)~" "; |
|
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
193
diff
changeset
|
239 if (marginHeight !is 0) string ~= "marginHeight="~to!(String)(marginHeight)~" "; |
|
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
193
diff
changeset
|
240 if (spacing !is 0) string ~= "spacing="~to!(String)(spacing)~" "; |
| 193 | 241 string = string.trim(); |
| 0 | 242 string ~= "}"; |
| 243 return string; | |
| 244 } | |
| 245 } |