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51 package org.apache.fop.layout;
52
53 import org.apache.fop.render.Renderer;
55 import org.apache.fop.fo.properties.Position;
56
57 import java.util.Iterator  ;
59
60 public class SpanArea extends AreaContainer {
61
62 private int columnCount;
63 private int currentColumn = 1;
64 private int columnGap = 0;
65
66 private boolean isBalanced = false;
68
69 public SpanArea(FontState fontState, int xPosition, int yPosition,
70 int allocationWidth, int maxHeight, int columnCount,
71 int columnGap) {
72 super(fontState, xPosition, yPosition, allocationWidth, maxHeight,
73 Position.ABSOLUTE);
74
75 this.contentRectangleWidth = allocationWidth;
76 this.columnCount = columnCount;
77 this.columnGap = columnGap;
78
79 int columnWidth = (allocationWidth - columnGap * (columnCount - 1))
80 / columnCount;
81 for (int columnIndex = 0; columnIndex < columnCount; columnIndex++) {
82 int colXPosition = (xPosition
83 + columnIndex * (columnWidth + columnGap));
84 int colYPosition = yPosition;
85 ColumnArea colArea = new ColumnArea(fontState, colXPosition,
86 colYPosition, columnWidth,
87 maxHeight, columnCount);
88 addChild(colArea);
89 colArea.setColumnIndex(columnIndex + 1);
90 }
91 }
92
93 public void render(Renderer renderer) {
94 renderer.renderSpanArea(this);
95 }
96
97 public void end() {}
98
99 public void start() {}
100
101 public int spaceLeft() {
102 return maxHeight - currentHeight;
103 }
104
105 public int getColumnCount() {
106 return columnCount;
107 }
108
109 public int getCurrentColumn() {
110 return currentColumn;
111 }
112
113 public void setCurrentColumn(int currentColumn) {
114 if (currentColumn <= columnCount)
115 this.currentColumn = currentColumn;
116 else
117 this.currentColumn = columnCount;
118 }
119
120 public AreaContainer getCurrentColumnArea() {
121 return (AreaContainer)getChildren().get(currentColumn - 1);
122 }
123
124 public boolean isBalanced() {
125 return isBalanced;
126 }
127
128 public void setIsBalanced() {
129 this.isBalanced = true;
130 }
131
132 public int getTotalContentHeight() {
133 int totalContentHeight = 0;
134 for (Iterator e = getChildren().iterator(); e.hasNext(); ) {
135 totalContentHeight +=
136 ((AreaContainer)e.next()).getContentHeight();
137 }
138 return totalContentHeight;
139 }
140
141 public int getMaxContentHeight() {
142 int maxContentHeight = 0;
143 for (Iterator e = getChildren().iterator(); e.hasNext(); ) {
144 AreaContainer nextElm = (AreaContainer)e.next();
145 if (nextElm.getContentHeight() > maxContentHeight)
146 maxContentHeight = nextElm.getContentHeight();
147 }
148 return maxContentHeight;
149 }
150
151 public void setPage(Page page) {
152 this.page = page;
153 for (Iterator e = getChildren().iterator(); e.hasNext(); ) {
154 ((AreaContainer)e.next()).setPage(page);
155 }
156 }
157
158 public boolean isLastColumn() {
159 return (currentColumn == columnCount);
160 }
161
162 }
163 |
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