使用C++的JavaScript设置页面和打印选项
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有时,开发人员需要配置页面设置和打印设置以控制打印过程。页面设置和打印设置提供各种选项,并且在Aspose.Cells中得到充分支持。
本文展示如何在C++的JavaScript中创建控制台应用程序,并使用Aspose.Cells API通过几行简单代码应用页面设置和打印选项到工作表。
处理页面和打印设置
在此示例中,我们在 Microsoft Excel 中创建了一个工作簿,并使用 Aspose.Cells 设置了页面布局和打印选项。
使用 Aspose.Cells 设置页面设置选项
首先在Microsoft Excel中创建一个简单的工作表。然后将页面设置选项应用于它。执行代码将更改页面设置选项,如下面的屏幕截图所示。
| 输出文件。 |
|---|
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- 在Microsoft Excel中创建一个带有一些数据的工作表:
- 在Microsoft Excel中打开一个新的工作簿。
- 添加一些数据。
- 设置页面设置选项:
将页面设置选项应用于文件。以下是应用新选项之前的默认选项的屏幕截图。
| 默认页面设置选项。 |
|---|
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- 下载并安装 Aspose.Cells:
- 下载 Aspose.Cells for Java 脚本通过 C++。
- 在您的开发计算机上安装它。
所有Aspose组件在安装后都处于评估模式。评估模式没有时间限制,只会在生成的文档中插入水印。
- 创建一个项目:
- 启动你的JavaScript环境。
- 创建新的控制台应用程序。
这个示例将展示一个JavaScript控制台应用程序,但你也可以使用C++绑定。
- 添加引用:
- 此示例使用 Aspose.Cells,因此请向项目添加对该组件的引用。例如:
…\Program Files\Aspose\Aspose.Cells\Bin\JavaScript-Cpp\Aspose.Cells.node
- 此示例使用 Aspose.Cells,因此请向项目添加对该组件的引用。例如:
- 编写调用 API 的应用程序:
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Page Setup Example</h1>
<input type="file" id="fileInput" accept=".xls,.xlsx,.csv" />
<button id="runExample">Run Example</button>
<a id="downloadLink" style="display: none;">Download Result</a>
<div id="result"></div>
</body>
<script src="aspose.cells.js.min.js"></script>
<script type="text/javascript">
const { Workbook, SaveFormat, PageOrientationType, PaperSizeType } = AsposeCells;
AsposeCells.onReady({
license: "/lic/aspose.cells.enc",
fontPath: "/fonts/",
fontList: [
"arial.ttf",
"NotoSansSC-Regular.ttf"
]
}).then(() => {
console.log("Aspose.Cells initialized");
});
document.getElementById('runExample').addEventListener('click', async () => {
const fileInput = document.getElementById('fileInput');
if (!fileInput.files.length) {
document.getElementById('result').innerHTML = '<p style="color: red;">Please select an Excel file.</p>';
return;
}
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
// Instantiate workbook from uploaded file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Accessing the first worksheet in the Excel file
const worksheet = workbook.worksheets.get(0);
// Access page setup as a property
const pageSetup = worksheet.pageSetup;
// Setting the orientation to Portrait
pageSetup.orientation = PageOrientationType.Portrait;
// Setting the number of pages to which the length of the worksheet will be spanned
pageSetup.fitToPagesTall = 1;
// Setting the number of pages to which the width of the worksheet will be spanned
pageSetup.fitToPagesWide = 1;
// Setting the paper size to A4
pageSetup.paperSize = PaperSizeType.PaperA4;
// Setting the print quality of the worksheet to 1200 dpi
pageSetup.printQuality = 1200;
// Setting the first page number of the worksheet pages
pageSetup.firstPageNumber = 2;
// Save the workbook and provide download link
const outputData = workbook.save(SaveFormat.Xlsx);
const blob = new Blob([outputData]);
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'PageSetup_out.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Modified Excel File';
document.getElementById('result').innerHTML = '<p style="color: green;">Page setup modified successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>
设置打印选项
页面设置还提供了几个打印选项(也称为工作表选项),允许用户控制工作表页面的打印方式。它们允许用户:
- 选择工作表的特定打印区域。
- 打印标题。
- 打印网格线。
- 打印行/列标题。
- 获得草稿质量。
- 打印注释。
- 打印单元格错误。
- 定义页面排序。
下面的示例将打印选项应用于上面示例中创建的文件(PageSetup.xls)。下面的屏幕截图显示了应用新选项之前的默认打印选项。
| 输入文档 |
|---|
![]() |
| 执行代码会更改打印选项。 |
| 输出文件 |
|---|
![]() |
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Page Setup Example</title>
</head>
<body>
<h1>Page Setup Example</h1>
<input type="file" id="fileInput" accept=".xls,.xlsx,.csv" />
<button id="runExample">Run Example</button>
<a id="downloadLink" style="display: none;">Download Result</a>
<div id="result"></div>
</body>
<script src="aspose.cells.js.min.js"></script>
<script type="text/javascript">
const { Workbook, SaveFormat, Utils } = AsposeCells;
AsposeCells.onReady({
license: "/lic/aspose.cells.enc",
fontPath: "/fonts/",
fontList: [
"arial.ttf",
"NotoSansSC-Regular.ttf"
]
}).then(() => {
console.log("Aspose.Cells initialized");
});
document.getElementById('runExample').addEventListener('click', async () => {
const fileInput = document.getElementById('fileInput');
if (!fileInput.files.length) {
document.getElementById('result').innerHTML = '<p style="color: red;">Please select an Excel file.</p>';
return;
}
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
// Open the workbook from the uploaded file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Accessing the first worksheet in the Excel file
const worksheet = workbook.worksheets.get(0);
const pageSetup = worksheet.pageSetup;
// Specifying the cells range (from A1 cell to E30 cell) of the print area
pageSetup.printArea = "A1:E30";
// Defining column numbers A & E as title columns
pageSetup.printTitleColumns = "$A:$E";
// Defining row numbers 1 as title rows
pageSetup.printTitleRows = "$1:$2";
// Allowing to print gridlines
pageSetup.printGridlines = true;
// Allowing to print row/column headings
pageSetup.printHeadings = true;
// Allowing to print worksheet in black & white mode
pageSetup.blackAndWhite = true;
// Allowing to print comments as displayed on worksheet
pageSetup.printComments = AsposeCells.PrintCommentsType.PrintInPlace;
// Allowing to print worksheet with draft quality
pageSetup.printDraft = true;
// Allowing to print cell errors as N/A
pageSetup.printErrors = AsposeCells.PrintErrorsType.PrintErrorsNA;
// Setting the printing order of the pages to over then down
pageSetup.order = AsposeCells.PrintOrderType.OverThenDown;
// Save the workbook and provide download link
const outputData = workbook.save(SaveFormat.Xlsx);
const blob = new Blob([outputData]);
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'PageSetup_Print_out.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Modified Excel File';
document.getElementById('result').innerHTML = '<p style="color: green;">Page setup applied successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>



