Table Cell Horizo​​ntalAlignment被忽略/破坏

Question

我正在使用iText 7.0.0（Java风格），似乎忽略了表格单元格Horizo​​ntalAlignment，因为CENTER和RIGHT都不起作用。你可以重现这个吗？

see the pdf screenshoot

和重现的代码：

private static void brokenTableCellHorizontalAlignmentPdf(OutputStream output) throws IOException {
    PdfWriter writer = new PdfWriter(output);
    PdfDocument pdf = new PdfDocument(writer);
    Document document = new Document(pdf);
    PdfFont font = PdfFontFactory.createFont(FontConstants.HELVETICA);
    Table table = new Table(new float[] {15f, 16f, 4f}).setWidthPercent(100);
    for (int y = 1; y <= 3; ++y) {
        for (int x = 1; x <= 3; ++x) {
            table.addCell(
                    new Cell()
                            .setVerticalAlignment(VerticalAlignment.MIDDLE)
                            .setHorizontalAlignment(HorizontalAlignment.CENTER)
                            .add(new Paragraph(String.format("(%d, %d)%s", y, x, x == 1 ? "\n\ntest" : ""))
                                    .setFont(font)
                                    .setFontSize(8)));
        }
    }
    document.add(table);
    document.close();
}

Answer 1

请查看CellAlignment示例：

/* Empty. Add your own CSS if you like */
@import url(http://fonts.googleapis.com/css?family=Titillium+Web:900|Roboto:400,100);

body { background-color: #fff; padding: 20px; }

/* Main Container 
=================== */
.scroll-content {
    font-family: 'Roboto', sans-serif; font-size: 16px; font-weight: 400;
    /*  width: 650px; height: 650px; */
    position: relative; /* Others -absolute positinoed- will get position in relation to this position */
    overflow: hidden; /* anything outside of myQuiz container will be clipped or masked */
    color: #fff;
    background-color: #1abc9c;
}

.scroll-content h2 {font-size: 3em; margin: 0px; font-weight: 100; }
.scroll-content h3 {font-size: 2.4em; margin: 0px; font-weight: 100; }
.scroll-content p { margin: 0px 0px 14px 0px; }
.scroll-content .btn {
    display: inline-block; cursor: pointer; background-color: red;
    color: #fff; text-decoration: none;
    padding: 5px 15px; border-radius: 6px;
}

.scroll-content h1 {
    font-weight: 100; font-size: 2em; text-transform: uppercase; margin: 0px;
    position: absolute; top: 25px; left: 36px;
}

/* Progress Bar */
.scroll-content .progress {
    width: 550px; position: absolute; top: 160px; left: 40px;
}

.scroll-content .progress div {
    position: relative; display: inline-block; width: 30px; height: 30px; margin-right: 30px;
    border-radius: 50%; background-color: rgba(225,225,225,.2); transition: background-color 1s;
}

.scroll-content .progress div.on, 
.scroll-content .progress div.answered {
    background-color: #efbe5e;
}

/* Intro */
.scroll-content .intro { position: absolute; top: 225px; left: 2660px; width: 550px; }
.scroll-content .intro  p { margin: 0px 0px 40px 0px; }

/* Questions */
.scroll-content .question {
    width:550px; position: absolute; top: 225px; left: 2660px;
}

.scroll-content .question .txt {
    font-size: 1.6em; margin: 0px 0px 20px 0px;
}

.scroll-content .question .ans {
    display: inline-block; font-size: 1.1em; width: 225px; border: 2px solid rgba(238,189,102,.4);
    border-radius: 6px; padding: 10px; margin: 0px 15px 15px 0px; position: relative;
}


.scroll-content  .question .ans.selected {
    border-color: #be4b16; 
}


.scroll-content  .question .ans.correct {
    border-color: #459a2e; 
}

/* Insert corecct or incorrect images */
.scroll-content .question .ans::after {
    content:''; display: block; width: 40px; height: 40px;
    background: no-repeat: 0px 0px; background-size: 40px 40px;
    position: absolute; top: 5px; right: 5px;
}

.scroll-content .question .ans.selected::after {
    background-image: url(../img/close-circled.png)
}
.scroll-content .question .ans.correct::after {
    background-image: url(../img/checkmark-circled.png)
}

.scroll-content .question .ans.selected::after {
    background-image: url(../img/close-circled.png)
}
.scroll-content .ans.correct::after {
    background-image: url(../img/checkmark-circled.png)
}

.scroll-content .question.unanswered .ans {
    cursor: pointer;
}

.scroll-content .question.unanswered .ans:hover {
    background-color: mediumvioletred;
}


.scroll-content .question.answered .ans {
    cursor: default;
}


/* Feedback */
.scroll-content .feedback {
    color: #efbe5e; margin-top: 10px; transition: opacity 1.5s, margin-top 1.5s;
    visibility: hidden; opacity: 0;
}

.scroll-content .feedback .btn {
    margin-top; 5px;
}

.scroll-content .feedback strong {
    color: #fff;
}

.scroll-content .answered .feedback {
    visibility: visible; opacity: 1; margin-top: 10px;
}

/* Results */
.scroll-content .results {
    position: absolute; top: 225px; left: 2660px; right: 40px;
}


.scroll-content .active, .scroll-content .inactive {
    transition: left 1.5s ease-in-out;
}

.scroll-content .active {
    left: 40px;
}

.scroll-content .intro.inactive, .scroll-content .inactive.answered { left: -1350px;}










.start-quiz {
    margin: auto;
    border: 3px solid green;
    margin-top: 10px;
    display: block;
}

.start-lesson {
    margin: auto;
    border: 3px solid green;
    margin-top: 10px;
    display: block;
}

.pane {
    background-color: #3498db;
}

运行此示例时生成的PDF如下所示：

对齐没有问题，垂直，水平或文本对齐都没有问题。

Answer 2

哦，没关系！在查看另一个答案（指向http://gitlab.itextsupport.com/itext7/samples/blob/develop/publications/highlevel/src/main/java/com/itextpdf/highlevel/chapter05/C05E03_CellAlignment.java）后，我们现在应该使用setTextAlignment。如：

new Paragraph(String.format("(%d, %d)%s", y, x, x == 1 ? "\n\ntest" : ""))
    .setFont(font)
    .setFontSize(8)
    .setTextAlignment(TextAlignment.CENTER)