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@ -49,6 +49,8 @@
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package com.fr.third.v2.lowagie.text.pdf; |
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import com.fr.third.v2.lowagie.text.html.CSS; |
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import com.fr.third.v2.lowagie.text.html.CSSUtils; |
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import java.util.ArrayList; |
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import com.fr.third.v2.lowagie.text.DocumentException; |
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@ -59,6 +61,7 @@ import com.fr.third.v2.lowagie.text.Image;
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import com.fr.third.v2.lowagie.text.Phrase; |
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import com.fr.third.v2.lowagie.text.Rectangle; |
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import com.fr.third.v2.lowagie.text.pdf.events.PdfPTableEventForwarder; |
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import java.util.List; |
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/** |
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* This is a table that can be put at an absolute position but can also |
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@ -105,6 +108,8 @@ public class PdfPTable implements LargeElement {
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protected PdfPTableEvent tableEvent; |
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private TableProperties tableProperties; |
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private String[] firstColWidths; |
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public TableProperties getTableProperties() { |
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return tableProperties; |
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} |
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@ -113,6 +118,10 @@ public class PdfPTable implements LargeElement {
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this.tableProperties = tableProperties; |
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} |
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public void setFirstColWidths(String[] firstColWidths) { |
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this.firstColWidths = firstColWidths; |
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} |
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/** |
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* Holds value of property headerRows. |
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*/ |
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@ -369,14 +378,245 @@ public class PdfPTable implements LargeElement {
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return; |
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this.totalWidth = totalWidth; |
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totalHeight = 0; |
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if (adjustFixedLayoutColumnWidth()) { |
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return; |
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} |
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calculateWidths(); |
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// calculateHeights(true);
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adjustRowWidth(); |
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} |
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private void adjustRowWidth() { |
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for (int k = 0; k < rows.size(); ++k) { |
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PdfPRow row = (PdfPRow) rows.get(k); |
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row.setWidths(absoluteWidths); |
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} |
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} |
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/** |
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* 计算非内容区域的宽度（边框+cellpadding+cellspacing） |
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* |
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* @return |
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*/ |
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private float calOutOfContentWidth() { |
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int numCols = getNumberOfColumns(); |
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float borderWidth = tableProperties.getBorderWidth(); |
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return tableProperties.getCellspacing() * (numCols + 1) + numCols * 2 * (borderWidth + tableProperties.getCellpadding()) + 2 * borderWidth; |
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} |
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/** |
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* 调整固定布局(table-layout:fixed )的列宽 |
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* |
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* @return false : 不符合table-layout:fixed 的定义 |
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*/ |
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public boolean adjustFixedLayoutColumnWidth() { |
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if (!needFixedLayout()) { |
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return false; |
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} |
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//是fixed 布局 且设置了width(仅设置 table-layout:fixed 而不设置width 时 前台依旧使用的是auto 布局)
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//内容区域外的宽度
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float outOfContentWidth = calOutOfContentWidth(); |
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//实际内容宽度
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float contentWidth = totalWidth - outOfContentWidth; |
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//重新初始化一下
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absoluteWidths = new float[relativeWidths.length]; |
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if (dealFirstLineHasNoWidth(contentWidth)) { |
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adjustRowWidth(); |
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return true; |
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} |
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//第一行列宽
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float[] colWidths = new float[firstColWidths.length]; |
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//绝对宽度和
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float absWidthSum = 0; |
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//相对宽度和
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float relWidthSum = 0; |
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//绝对宽度 （如 10px） 的索引
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ArrayList<Integer> absIndex = new ArrayList<Integer>(); |
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//相对宽度 （如 10%） 的索引
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ArrayList<Integer> relIndex = new ArrayList<Integer>(); |
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//初始化一下上述字段
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for (int i = 0; i < firstColWidths.length; i++) { |
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float w = CSSUtils.parseFloat(firstColWidths[i]); |
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if (null != firstColWidths[i]) { |
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if (firstColWidths[i].endsWith("%")) { |
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w = w / 100 * contentWidth; |
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relWidthSum += w; |
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relIndex.add(i); |
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} else { |
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absWidthSum += w; |
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absIndex.add(i); |
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} |
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} |
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colWidths[i] = w; |
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} |
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//第一行td中指定的绝对宽度 >= table标签上指定的宽度，以td的宽度为准，将table撑开
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if (absWidthSum >= contentWidth) { |
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for (int i = 0; i < absIndex.size(); i++) { |
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absoluteWidths[absIndex.get(i)] = colWidths[absIndex.get(i)]; |
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} |
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totalWidth = outOfContentWidth + absWidthSum; |
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dealInvalidCell(absIndex); |
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adjustRowWidth(); |
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return true; |
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} |
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//table 总的列数
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int colNum = getNumberOfColumns(); |
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//相对宽度与绝对宽度的列数和
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int absAndRelColNum = absIndex.size() + relIndex.size(); |
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//相对宽度与绝对宽度的列宽和
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float absAndRelColWidthSum = absWidthSum + relWidthSum; |
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//第一行td中指定的绝对宽度+相对宽度小于table内容宽度
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if (absAndRelColWidthSum < contentWidth) { |
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//剩余宽度
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float remaindWidth = contentWidth - absAndRelColWidthSum; |
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//如果总列数大于第一行绝对宽度和相对宽度列数，则多余的宽度由剩余列平分
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if (colNum > absAndRelColNum) { |
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fillAbsoluteWidths(colWidths, absIndex); |
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fillAbsoluteWidths(colWidths, relIndex); |
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float remaindAvgWidth = remaindWidth / (colNum - absAndRelColNum); |
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for (int i = 0; i < absoluteWidths.length; i++) { |
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if (absIndex.contains(i) || relIndex.contains(i)) { |
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continue; |
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} |
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absoluteWidths[i] = remaindAvgWidth; |
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} |
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} else { |
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//按比例分摊剩余宽度
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for (int i = 0; i < absIndex.size(); i++) { |
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float width = colWidths[absIndex.get(i)]; |
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absoluteWidths[absIndex.get(i)] = width + remaindWidth * width / absAndRelColWidthSum; |
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} |
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for (int i = 0; i < relIndex.size(); i++) { |
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float width = colWidths[relIndex.get(i)]; |
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absoluteWidths[relIndex.get(i)] = width + remaindWidth * width / absAndRelColWidthSum; |
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} |
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dealInvalidCell(absIndex, relIndex); |
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} |
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} else { |
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//第一行td中指定的绝对宽度+相对宽度大于table标签上指定的宽度，剩余宽度由相对宽度平分
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fillAbsoluteWidths(colWidths, absIndex); |
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//剩余宽度
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float remaindWidth = contentWidth - absWidthSum; |
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for (int i = 0; i < relIndex.size(); i++) { |
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float width = colWidths[relIndex.get(i)]; |
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absoluteWidths[relIndex.get(i)] = remaindWidth * width / relWidthSum; |
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} |
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dealInvalidCell(absIndex, relIndex); |
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} |
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adjustRowWidth(); |
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return true; |
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} |
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private boolean needFixedLayout() { |
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return totalWidth > 0 && rows.size() > 0 && CSS.Value.FIXED.equals(tableProperties.getLayout()) && null != tableProperties.getStyleWidth(); |
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} |
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/** |
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* 获取列索引List |
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*/ |
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public List<Integer> getColIndexList() { |
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List<Integer> list = new ArrayList<>(absoluteWidths.length); |
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for (int i = 0; i < absoluteWidths.length; i++) { |
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list.add(i); |
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} |
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return list; |
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} |
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/** |
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* 填充最终宽度 |
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* |
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* @param colWidths 列宽 |
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* @param indexList 要设置的列索引List |
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*/ |
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private void fillAbsoluteWidths(float[] colWidths, ArrayList<Integer> indexList) { |
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for (int i = 0; i < indexList.size() && i < absoluteWidths.length; i++) { |
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Integer index = indexList.get(i); |
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absoluteWidths[index] = colWidths[index]; |
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} |
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} |
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/** |
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* validIndexList 之外的列对应的单元格设置为无效的 |
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* |
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* @param validIndexList |
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*/ |
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private void dealInvalidCell(List<Integer>... validIndexList) { |
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if (null == validIndexList) { |
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return; |
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} |
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//计算无效列索引
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List<Integer> invalidIndexList = getColIndexList(); |
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List<Integer> list = new ArrayList<Integer>(); |
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for (List<Integer> item : validIndexList) { |
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list.addAll(item); |
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} |
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invalidIndexList.removeAll(list); |
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for (int row = 0; row < rows.size(); row++) { |
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PdfPRow pdfRow = (PdfPRow) rows.get(row); |
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int index = 0; |
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PdfPCell[] cells = pdfRow.getCells(); |
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for (PdfPCell cell : cells) { |
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if (cell == null) { |
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index += 1; |
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continue; |
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} |
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if (invalidIndexList.contains(index)) { |
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cell.setInvalid(true); |
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} |
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index += cell.getColspan(); |
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} |
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} |
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//将无效列的多余宽度平分给其他列
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dealInvalidColWidth(invalidIndexList.size(), list); |
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} |
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/** |
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* 处理无效列的内容区域外的宽度（平分给其他列） |
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* |
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* @param invalidColNum |
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* @param validIndexList |
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*/ |
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private void dealInvalidColWidth(int invalidColNum, List<Integer> validIndexList) { |
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if (0 == invalidColNum || null == validIndexList || 0 == validIndexList.size()) { |
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return; |
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} |
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float invalidColWidth = invalidColNum * tableProperties.getCellspacing() + 2 * invalidColNum * (tableProperties.getCellpadding() + tableProperties.getBorderWidth()); |
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float avgWidth = invalidColWidth / validIndexList.size(); |
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for (int i = 0; i < validIndexList.size() && i < absoluteWidths.length; i++) { |
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Integer index = validIndexList.get(i); |
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absoluteWidths[index] += avgWidth; |
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} |
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} |
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/** |
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* 处理第一行没有设置width属性情况 |
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* |
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* @param contentWidth 内容宽度 |
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* @return |
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*/ |
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private boolean dealFirstLineHasNoWidth(float contentWidth) { |
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if (null != firstColWidths && 0 != firstColWidths.length) { |
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return false; |
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} |
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//第一行的td都没有设置width属性，则所有列平分table宽度
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int length = absoluteWidths.length; |
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for (int i = 0; i < length; i++) { |
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absoluteWidths[i] = contentWidth / length; |
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} |
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return true; |
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} |
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/** |
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* Sets the full width of the table from the absolute column width. |
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* |
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Hugh.C
5 years ago