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21 package org.lobobrowser.html.renderer;
22
23 import java.awt.*;
24
25 import org.lobobrowser.html.HtmlRendererContext;
26 import org.lobobrowser.html.UserAgentContext;
27 import org.lobobrowser.html.domimpl.NodeImpl;
28 import org.lobobrowser.html.style.ListStyle;
29 import org.lobobrowser.html.style.RenderState;
30 import org.w3c.dom.html2.*;
31
32 class RListItem extends BaseRListElement {
33 private static final int BULLET_WIDTH = 5;
34 private static final int BULLET_HEIGHT = 5;
35 private static final int BULLET_RMARGIN = 5;
36 private static final int BULLET_SPACE_WIDTH = 36;
37
38 public RListItem(NodeImpl modelNode, int listNesting, UserAgentContext pcontext, HtmlRendererContext rcontext, FrameContext frameContext, RenderableContainer parentContainer, RCollection parent) {
39 super(modelNode, listNesting, pcontext, rcontext, frameContext, parentContainer);
40 this.defaultMarginInsets = new java.awt.Insets  (0, BULLET_SPACE_WIDTH, 0, 0);
41 }
42
43 public int getViewportListNesting(int blockNesting) {
44 return blockNesting + 1;
45 }
46
47 public void invalidateLayoutLocal() {
48 super.invalidateLayoutLocal();
49 this.value = null;
50 }
51
52 private static final Integer UNSET = new Integer (Integer.MIN_VALUE);
53 private Integer value = null;
54
55 private Integer getValue() {
56 Integer value = this.value;
57 if(value == null) {
58 HTMLElement node = (HTMLElement) this.modelNode;
59 String valueText = node == null ? null : node.getAttribute("value");
60 if(valueText == null) {
61 value = UNSET;
62 }
63 else {
64 try {
65 value = Integer.valueOf(valueText);
66 } catch(NumberFormatException nfe) {
67 value = UNSET;
68 }
69 }
70 this.value = value;
71 }
72 return value;
73 }
74
75 private int count;
76
77 public void doLayout(int availWidth, int availHeight, boolean expandWidth, boolean expandHeight, FloatingBounds floatBounds, int tentativeY, int defaultOverflow) {
78 super.doLayout(availWidth, availHeight, expandWidth, expandHeight,
79 floatBounds, tentativeY, defaultOverflow);
80 RenderState renderState = this.modelNode.getRenderState();
82 Integer value = this.getValue();
83 if(value == UNSET) {
84 this.count = renderState.incrementCount(DEFAULT_COUNTER_NAME, this.listNesting);
85 }
86 else {
87 int newCount = value.intValue();
88 this.count = newCount;
89 renderState.resetCount(DEFAULT_COUNTER_NAME, this.listNesting, newCount + 1);
90 }
91 }
92
93 public void paint(Graphics g) {
94 super.paint(g);
95 RenderState rs = this.modelNode.getRenderState();
96 Insets marginInsets = this.getMarginInsets(rs);
97 RBlockViewport layout = this.bodyLayout;
98 if(layout != null) {
99 ListStyle listStyle = this.listStyle;
100 int bulletType = listStyle == null ? ListStyle.TYPE_UNSET : listStyle.type;
101 if(bulletType == ListStyle.TYPE_UNSET) {
102 RCollection parent = this.getOriginalOrCurrentParent();
103 if(!(parent instanceof RList)) {
104 parent = parent.getOriginalOrCurrentParent();
105 }
106 if(parent instanceof RList) {
107 ListStyle parentListStyle = ((RList) parent).listStyle;
108 bulletType = parentListStyle == null ? ListStyle.TYPE_DISC : parentListStyle.type;
109 }
110 else {
111 bulletType = ListStyle.TYPE_DISC;
112 }
113 }
114 Color prevColor = g.getColor();
116 g.setColor(Color.BLACK);
117 try {
118 Insets insets = this.getInsets(this.hasHScrollBar, this.hasVScrollBar);
119 Insets paddingInsets = this.getPaddingInsets(rs);
120 int baselineOffset = layout.getFirstBaselineOffset();
121 int bulletRight = marginInsets.left - BULLET_RMARGIN;
122 int bulletBottom = insets.top + baselineOffset + (paddingInsets == null ? 0 : paddingInsets.top);
123 int bulletTop = bulletBottom - BULLET_HEIGHT;
124 int bulletLeft = bulletRight - BULLET_WIDTH;
125 int bulletNumber = this.count;
126 String numberText = null;
127 switch(bulletType) {
128 case ListStyle.TYPE_DECIMAL:
129 numberText = bulletNumber + ".";
130 break;
131 case ListStyle.TYPE_LOWER_ALPHA:
132 numberText = ((char) ('a' + bulletNumber)) + ".";
133 break;
134 case ListStyle.TYPE_UPPER_ALPHA:
135 numberText = ((char) ('A' + bulletNumber)) + ".";
136 break;
137 case ListStyle.TYPE_DISC:
138 g.fillOval(bulletLeft, bulletTop, BULLET_WIDTH, BULLET_HEIGHT);
139 break;
140 case ListStyle.TYPE_CIRCLE:
141 g.drawOval(bulletLeft, bulletTop, BULLET_WIDTH, BULLET_HEIGHT);
142 break;
143 case ListStyle.TYPE_SQUARE:
144 g.fillRect(bulletLeft, bulletTop, BULLET_WIDTH, BULLET_HEIGHT);
145 break;
146 }
147 if(numberText != null) {
148 FontMetrics fm = g.getFontMetrics();
149 int numberLeft = bulletRight - fm.stringWidth(numberText);
150 int numberY = bulletBottom;
151 g.drawString(numberText, numberLeft, numberY);
152 }
153 } finally {
154 g.setColor(prevColor);
155 }
156 }
157 }
158 }
159 |
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