Mercurial > projects > dwt-win
annotate dwt/custom/ViewFormLayout.d @ 341:f403c83322c3 default tip
fix: thx torhu
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 08 Nov 2009 20:58:32 +0100 |
| parents | 349b8c12e243 |
| children |
| rev | line source |
|---|---|
| 155 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2005 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.custom.ViewFormLayout; | |
| 14 | |
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349b8c12e243
Sync dwt/custom with dwt-linux
Frank Benoit <benoit@tionex.de>
parents:
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diff
changeset
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15 import dwt.dwthelper.utils; |
| 155 | 16 |
| 17 import dwt.DWT; | |
| 18 import dwt.graphics.Point; | |
| 19 import dwt.graphics.Rectangle; | |
| 20 import dwt.widgets.Composite; | |
| 21 import dwt.widgets.Control; | |
| 22 import dwt.widgets.Layout; | |
| 23 import dwt.widgets.Scrollable; | |
| 24 import dwt.custom.ViewForm; | |
| 25 import dwt.custom.CLayoutData; | |
| 26 | |
| 27 /** | |
| 28 * This class provides the layout for ViewForm | |
| 29 * | |
| 30 * @see ViewForm | |
| 31 */ | |
| 32 class ViewFormLayout : Layout { | |
| 33 | |
| 34 protected override Point computeSize(Composite composite, int wHint, int hHint, bool flushCache) { | |
| 35 ViewForm form = cast(ViewForm)composite; | |
| 36 Control left = form.topLeft; | |
| 37 Control center = form.topCenter; | |
| 38 Control right = form.topRight; | |
| 39 Control content = form.content; | |
| 40 | |
| 41 Point leftSize = new Point(0, 0); | |
| 42 if (left !is null) { | |
| 43 leftSize = computeChildSize(left, DWT.DEFAULT, DWT.DEFAULT, flushCache); | |
| 44 } | |
| 45 Point centerSize = new Point(0, 0); | |
| 46 if (center !is null) { | |
| 47 centerSize = computeChildSize(center, DWT.DEFAULT, DWT.DEFAULT, flushCache); | |
| 48 } | |
| 49 Point rightSize = new Point(0, 0); | |
| 50 if (right !is null) { | |
| 51 rightSize = computeChildSize(right, DWT.DEFAULT, DWT.DEFAULT, flushCache); | |
| 52 } | |
| 53 Point size = new Point(0, 0); | |
| 54 // calculate width of title bar | |
| 55 if (form.separateTopCenter || | |
| 56 (wHint !is DWT.DEFAULT && leftSize.x + centerSize.x + rightSize.x > wHint)) { | |
| 57 size.x = leftSize.x + rightSize.x; | |
| 58 if (leftSize.x > 0 && rightSize.x > 0) size.x += form.horizontalSpacing; | |
| 59 size.x = Math.max(centerSize.x, size.x); | |
| 60 size.y = Math.max(leftSize.y, rightSize.y); | |
| 61 if (center !is null){ | |
| 62 size.y += centerSize.y; | |
| 63 if (left !is null ||right !is null)size.y += form.verticalSpacing; | |
| 64 } | |
| 65 } else { | |
| 66 size.x = leftSize.x + centerSize.x + rightSize.x; | |
| 67 int count = -1; | |
| 68 if (leftSize.x > 0) count++; | |
| 69 if (centerSize.x > 0) count++; | |
| 70 if (rightSize.x > 0) count++; | |
| 71 if (count > 0) size.x += count * form.horizontalSpacing; | |
| 72 size.y = Math.max(leftSize.y, Math.max(centerSize.y, rightSize.y)); | |
| 73 } | |
| 74 | |
| 75 if (content !is null) { | |
| 76 if (left !is null || right !is null || center !is null) size.y += 1; // allow space for a vertical separator | |
| 77 Point contentSize = new Point(0, 0); | |
| 78 contentSize = computeChildSize(content, DWT.DEFAULT, DWT.DEFAULT, flushCache); | |
| 79 size.x = Math.max (size.x, contentSize.x); | |
| 80 size.y += contentSize.y; | |
| 81 if (size.y > contentSize.y) size.y += form.verticalSpacing; | |
| 82 } | |
| 83 | |
| 84 size.x += 2*form.marginWidth; | |
| 85 size.y += 2*form.marginHeight; | |
| 86 | |
| 87 if (wHint !is DWT.DEFAULT) size.x = wHint; | |
| 88 if (hHint !is DWT.DEFAULT) size.y = hHint; | |
| 89 | |
| 90 return size; | |
| 91 } | |
| 92 | |
| 93 Point computeChildSize(Control control, int wHint, int hHint, bool flushCache) { | |
| 94 Object data = control.getLayoutData(); | |
| 95 if (data is null || !( null !is cast(CLayoutData)data )) { | |
| 96 data = new CLayoutData(); | |
| 97 control.setLayoutData(data); | |
| 98 } | |
| 99 return (cast(CLayoutData)data).computeSize(control, wHint, hHint, flushCache); | |
| 100 } | |
| 101 | |
| 102 int computeTrim(Control c) { | |
| 103 if ( auto sa = cast(Scrollable)c) { | |
| 104 Rectangle rect = sa.computeTrim (0, 0, 0, 0); | |
| 105 return rect.width; | |
| 106 } | |
| 107 return c.getBorderWidth () * 2; | |
| 108 } | |
| 109 | |
| 110 protected override bool flushCache(Control control) { | |
| 111 Object data = control.getLayoutData(); | |
| 112 if ( auto ld = cast(CLayoutData)data ) ld.flushCache(); | |
| 113 return true; | |
| 114 } | |
| 115 | |
| 116 protected override void layout(Composite composite, bool flushCache) { | |
| 117 ViewForm form = cast(ViewForm)composite; | |
| 118 Control left = form.topLeft; | |
| 119 Control center = form.topCenter; | |
| 120 Control right = form.topRight; | |
| 121 Control content = form.content; | |
| 122 | |
| 123 Rectangle rect = composite.getClientArea(); | |
| 124 | |
| 125 Point leftSize = new Point(0, 0); | |
| 126 if (left !is null && !left.isDisposed()) { | |
| 127 leftSize = computeChildSize(left, DWT.DEFAULT, DWT.DEFAULT, flushCache); | |
| 128 } | |
| 129 Point centerSize = new Point(0, 0); | |
| 130 if (center !is null && !center.isDisposed()) { | |
| 131 centerSize = computeChildSize(center, DWT.DEFAULT, DWT.DEFAULT, flushCache); | |
| 132 } | |
| 133 Point rightSize = new Point(0, 0); | |
| 134 if (right !is null && !right.isDisposed()) { | |
| 135 rightSize = computeChildSize(right, DWT.DEFAULT, DWT.DEFAULT, flushCache); | |
| 136 } | |
| 137 | |
| 138 int minTopWidth = leftSize.x + centerSize.x + rightSize.x + 2*form.marginWidth + 2*form.highlight; | |
| 139 int count = -1; | |
| 140 if (leftSize.x > 0) count++; | |
| 141 if (centerSize.x > 0) count++; | |
| 142 if (rightSize.x > 0) count++; | |
| 143 if (count > 0) minTopWidth += count * form.horizontalSpacing; | |
| 144 | |
| 145 int x = rect.x + rect.width - form.marginWidth - form.highlight; | |
| 146 int y = rect.y + form.marginHeight + form.highlight; | |
| 147 | |
| 148 bool top = false; | |
| 149 if (form.separateTopCenter || minTopWidth > rect.width) { | |
| 150 int topHeight = Math.max(rightSize.y, leftSize.y); | |
| 151 if (right !is null && !right.isDisposed()) { | |
| 152 top = true; | |
| 153 x -= rightSize.x; | |
| 154 right.setBounds(x, y, rightSize.x, topHeight); | |
| 155 x -= form.horizontalSpacing; | |
| 156 } | |
| 157 if (left !is null && !left.isDisposed()) { | |
| 158 top = true; | |
| 159 int trim = computeTrim(left); | |
| 160 int leftW = x - rect.x - form.marginWidth - form.highlight - trim; | |
| 161 leftSize = computeChildSize(left, leftW, DWT.DEFAULT, false); | |
| 162 left.setBounds(rect.x + form.marginWidth + form.highlight, y, leftSize.x, topHeight); | |
| 163 } | |
| 164 if (top) y += topHeight + form.verticalSpacing; | |
| 165 if (center !is null && !center.isDisposed()) { | |
| 166 top = true; | |
| 167 int trim = computeTrim(center); | |
| 168 int w = rect.width - 2*form.marginWidth - 2*form.highlight - trim; | |
| 169 centerSize = computeChildSize(center, w, DWT.DEFAULT, false); | |
| 170 center.setBounds(rect.x + rect.width - form.marginWidth - form.highlight - centerSize.x, y, centerSize.x, centerSize.y); | |
| 171 y += centerSize.y + form.verticalSpacing; | |
| 172 } | |
| 173 } else { | |
| 174 int topHeight = Math.max(rightSize.y, Math.max(centerSize.y, leftSize.y)); | |
| 175 if (right !is null && !right.isDisposed()) { | |
| 176 top = true; | |
| 177 x -= rightSize.x; | |
| 178 right.setBounds(x, y, rightSize.x, topHeight); | |
| 179 x -= form.horizontalSpacing; | |
| 180 } | |
| 181 if (center !is null && !center.isDisposed()) { | |
| 182 top = true; | |
| 183 x -= centerSize.x; | |
| 184 center.setBounds(x, y, centerSize.x, topHeight); | |
| 185 x -= form.horizontalSpacing; | |
| 186 } | |
| 187 if (left !is null && !left.isDisposed()) { | |
| 188 top = true; | |
| 189 Rectangle trim = ( null !is cast(Composite)left ) ? (cast(Composite)left).computeTrim(0, 0, 0, 0) : new Rectangle(0, 0, 0, 0); | |
| 190 int w = x - rect.x - form.marginWidth - form.highlight - trim.width; | |
| 191 int h = topHeight - trim.height; | |
| 192 leftSize = computeChildSize(left, w, h, false); | |
| 193 left.setBounds(rect.x + form.marginWidth + form.highlight, y, leftSize.x, topHeight); | |
| 194 } | |
| 195 if (top)y += topHeight + form.verticalSpacing; | |
| 196 } | |
| 197 int oldSeperator = form.separator; | |
| 198 form.separator = -1; | |
| 199 if (content !is null && !content.isDisposed()) { | |
| 246 | 200 if (left !is null || right !is null || center !is null){ |
| 155 | 201 form.separator = y; |
| 202 y++; | |
| 203 } | |
| 204 content.setBounds(rect.x + form.marginWidth + form.highlight, y, rect.width - 2 * form.marginWidth - 2*form.highlight, rect.y + rect.height - y - form.marginHeight - form.highlight); | |
| 205 } | |
| 206 if (oldSeperator !is -1 && form.separator !is -1) { | |
| 207 int t = Math.min(form.separator, oldSeperator); | |
| 208 int b = Math.max(form.separator, oldSeperator); | |
| 209 form.redraw(form.borderLeft, t, form.getSize().x - form.borderLeft - form.borderRight, b - t, false); | |
| 210 } | |
| 211 } | |
| 212 } |