projects/dwt-addons: dwtx/draw2d/text/LineRoot.d annotate

author	Frank Benoit <benoit@tionex.de>
date	Sun, 03 Aug 2008 00:52:14 +0200
parents
children

rev	line source
98 95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	1 /*******************************************************************************
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	2 * Copyright (c) 2004, 2005 IBM Corporation and others.
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	3 * All rights reserved. This program and the accompanying materials
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	4 * are made available under the terms of the Eclipse Public License v1.0
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	5 * which accompanies this distribution, and is available at
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	6 * http://www.eclipse.org/legal/epl-v10.html
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	7 *
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	8 * Contributors:
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	9 * IBM Corporation - initial API and implementation
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	10 * Port to the D programming language:
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	11 * Frank Benoit <benoit@tionex.de>
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	12 *******************************************************************************/
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	13
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	14 module dwtx.draw2d.text.LineRoot;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	15
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	16 import dwt.dwthelper.utils;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	17 import dwtx.dwtxhelper.Collection;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	18
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	19 import dwtx.draw2d.geometry.Rectangle;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	20 import dwtx.draw2d.text.LineBox;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	21 import dwtx.draw2d.text.FlowBox;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	22 import dwtx.draw2d.text.NestedLine;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	23 import dwtx.draw2d.text.ContentBox;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	24 import dwtx.draw2d.text.InlineFlow;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	25
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	26 /**
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	27 * LineRoot is the top-most container on a line of text displayed in Draw2d. Hence, a
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	28 * LineRoot can tell you of things like the highest ascent or descent on a line, which
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	29 * is required to display selection and such. All
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	30 * {@link dwtx.draw2d.text.ContentBox fragments} know of the LineRoot they belong
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	31 * to.
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	32 * @author Randy Hudson
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	33 * @author Pratik Shah
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	34 * @since 3.1
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	35 */
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	36 public class LineRoot
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	37 : LineBox
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	38 {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	39
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	40 private int baseline;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	41 private bool isMirrored;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	42
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	43 /**
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	44 * Constructor
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	45 * @param isMirrored <code>true</code> if the line is to be displayed in a mirrored control
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	46 */
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	47 public this(bool isMirrored) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	48 this.isMirrored = isMirrored;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	49 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	50
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	51 /**
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	52 * @see dwtx.draw2d.text.CompositeBox#add(dwtx.draw2d.text.FlowBox)
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	53 */
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	54 public void add(FlowBox child) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	55 super.add(child);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	56 child.setLineRoot(this);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	57 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	58
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	59 private void bidiCommit() {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	60 int xLocation = getX();
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	61 BidiLevelNode root = new BidiLevelNode();
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	62 List branches = new ArrayList();
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	63 // branches does not include this LineRoot; all the non-leaf child fragments of a
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	64 // parent will be listed before the parent itself in this list
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	65 buildBidiTree(this, root, branches);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	66 List result = new ArrayList();
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	67 root.emit(result);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	68 int i = isMirrored ? result.size() - 1 : 0;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	69 while (i >= 0 && i < result.size()) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	70 FlowBox box = cast(FlowBox)result.get(i);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	71 box.setX(xLocation);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	72 xLocation += box.getWidth();
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	73 i += isMirrored ? -1 : 1;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	74 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	75 // set the bounds of the composite boxes, and break overlapping ones into two
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	76 layoutNestedLines(branches);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	77 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	78
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	79 private void buildBidiTree(FlowBox box, BidiLevelNode node, List branches) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	80 if ( auto lb = cast(LineBox)box ) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	81 List children = lb.getFragments();
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	82 for (int i = 0; i < children.size(); i++)
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	83 buildBidiTree(cast(FlowBox)children.get(i), node, branches);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	84 if (box !is this)
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	85 branches.add(box);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	86 } else {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	87 ContentBox leafBox = cast(ContentBox)box;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	88 while (leafBox.getBidiLevel() < node.level)
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	89 node = node.pop();
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	90 while (leafBox.getBidiLevel() > node.level)
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	91 node = node.push();
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	92 node.add(leafBox);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	93 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	94 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	95
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	96 /**
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	97 * Committing a LineRoot will position its children correctly. All children boxes are made
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	98 * to have the same baseline, and are laid out according to the Unicode BiDi Algorithm,
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	99 * or left-to-right if Bidi is not necessary.
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	100 */
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	101 public void commit() {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	102 if (requiresBidi())
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	103 bidiCommit();
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	104 else
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	105 contiguousCommit(this, getX());
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	106 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	107
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	108 /**
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	109 * A LineRoot cannot be targetted.
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	110 * @see dwtx.draw2d.text.FlowBox#containsPoint(int, int)
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	111 */
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	112 public bool containsPoint(int x, int y) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	113 return false;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	114 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	115
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	116 /*
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	117 * Simply lays out all fragments from left-to-right in the order in which they're
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	118 * contained.
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	119 */
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	120 private void contiguousCommit(FlowBox box, int x) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	121 box.setX(x);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	122 if (auto lb = cast(LineBox)box ) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	123 List fragments = lb.getFragments();
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	124 int i = isMirrored ? fragments.size() - 1 : 0;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	125 while (i >= 0 && i < fragments.size()) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	126 FlowBox child = cast(FlowBox)fragments.get(i);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	127 contiguousCommit(child, x);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	128 x += child.getWidth();
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	129 i += isMirrored ? -1 : 1;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	130 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	131 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	132 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	133
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	134 private Result findParent(NestedLine line, List branches, int afterIndex) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	135 for (int i = afterIndex + 1; i < branches.size(); i++) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	136 NestedLine box = cast(NestedLine)branches.get(i);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	137 int index = box.getFragments().indexOf(line);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	138 if (index >= 0)
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	139 return new Result(box, index);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	140 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	141 return new Result(this, getFragments().indexOf(line));
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	142 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	143
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	144 /**
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	145 * @see dwtx.draw2d.text.FlowBox#getBaseline()
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	146 */
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	147 public int getBaseline() {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	148 return baseline;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	149 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	150
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	151 LineRoot getLineRoot() {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	152 return this;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	153 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	154
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	155 int getVisibleBottom() {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	156 return baseline + contentDescent;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	157 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	158
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	159 int getVisibleTop() {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	160 return baseline - contentAscent;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	161 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	162
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	163 private void layoutNestedLines(List branches) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	164 for (int i = 0; i < branches.size(); i++) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	165 NestedLine parent = cast(NestedLine)branches.get(i);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	166 FlowBox prevChild = null;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	167 Rectangle bounds = null;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	168 List frags = parent.getFragments();
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	169 for (int j = 0; j < frags.size(); j++) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	170 FlowBox child = cast(FlowBox) frags.get(j);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	171 if (prevChild !is null && prevChild.getX() + prevChild.width !is child.getX()
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	172 && child.getX() + child.width !is prevChild.getX()) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	173 // the boxes are not adjacent, and hence the parent box needs to
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	174 // be broken up
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	175 InlineFlow parentFig = parent.owner;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	176 // Create and initialize a new line box
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	177 NestedLine newBox = new NestedLine(parentFig);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	178 newBox.setLineRoot(this);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	179 // Add all remaining fragments from the current line box to the new one
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	180 for (int k = j; k < frags.size();)
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	181 newBox.fragments.add(frags.remove(k));
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	182 // Add the new line box to the parent box's list of fragments
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	183 Result result = findParent(parent, branches, i);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	184 result.parent.getFragments().add(result.index + 1, newBox);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	185 // Add the new line box to the flow figure's list of fragments
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	186 parentFig.fragments.add(parentFig.fragments.indexOf(parent) + 1, newBox);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	187 branches.add(i + 1, newBox);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	188 break;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	189 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	190 if (bounds is null)
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	191 bounds = new Rectangle(child.getX(), 1, child.getWidth(), 1);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	192 else
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	193 bounds.union_(child.getX(), 1, child.getWidth(), 1);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	194 prevChild = child;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	195 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	196 parent.setX(bounds.x);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	197 parent.setWidth(bounds.width);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	198 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	199 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	200
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	201 /**
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	202 * Positions the line vertically by settings its baseline.
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	203 * @param baseline the baseline
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	204 */
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	205 public void setBaseline(int baseline) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	206 this.baseline = baseline;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	207 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	208
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	209 /**
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	210 * @see dwtx.draw2d.text.CompositeBox#setLineTop(int)
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	211 */
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	212 public void setLineTop(int top) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	213 this.baseline = top + getAscent();
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	214 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	215
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	216 private static class BidiLevelNode : ArrayList
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	217 {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	218 int level;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	219 final BidiLevelNode parent;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	220
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	221 this() {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	222 this(null, 0);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	223 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	224
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	225 this(BidiLevelNode parent, int level) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	226 this.parent = parent;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	227 this.level = level;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	228 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	229
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	230 void emit(List list) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	231 if (level % 2 is 1) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	232 for (int i = size() - 1; i >= 0; i--) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	233 Object child = get(i);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	234 if (auto bln = cast(BidiLevelNode)child )
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	235 bln.emit(list);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	236 else
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	237 list.add(child);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	238 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	239 } else {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	240 for (int i = 0; i < size(); i++) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	241 Object child = get(i);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	242 if (auto bln = cast(BidiLevelNode)child )
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	243 bln.emit(list);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	244 else
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	245 list.add(child);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	246 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	247 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	248 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	249
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	250 BidiLevelNode pop() {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	251 return parent;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	252 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	253
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	254 BidiLevelNode push() {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	255 if (!isEmpty()) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	256 Object last = get(size() - 1);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	257 if (null !is cast(BidiLevelNode)last && (cast(BidiLevelNode)last).level is level + 1)
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	258 return cast(BidiLevelNode)last;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	259 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	260 BidiLevelNode child = new BidiLevelNode(this, level + 1);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	261 add(child);
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	262 return child;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	263 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	264 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	265
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	266 private static class Result {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	267 private int index;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	268 private LineBox parent;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	269 private this(LineBox box, int i) {
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	270 parent = box;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	271 index = i;
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	272 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	273 }
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	274
95307ad235d9 Added Draw2d code, still work in progress Frank Benoit <benoit@tionex.de> parents: diff changeset	275 }

98

95307ad235d9 Added Draw2d code, still work in progress