Générer des images de barres de données de mise en forme conditionnelle
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Parfois, vous devez générer des images de DataBars de mise en forme conditionnelle. Vous pouvez utiliser le Aspose.Cells[DataBar.toImage()](https://reference.aspose.com/cells/java/com.aspose.cells/databar#toImage(com.aspose.cells.Cell,%20com.aspose.cells.ImageOrPrintOptions)méthode pour générer ces images. Cet article explique comment générer une image DataBar à l’aide de Aspose.Cells.
Exemple
L’exemple de code suivant génère l’image DataBar de la cellule C1. Tout d’abord, il accède à l’objet de condition de format de la cellule, puis à partir de cet objet, il accède à l’objet DataBar et utilise sonDataBar.toImage() méthode pour générer l’image de la cellule. Enfin, il enregistre l’image sur disque.
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// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-Java | |
String sourceDir = Utils.Get_SourceDirectory(); | |
String outputDir = Utils.Get_OutputDirectory(); | |
Workbook workbook = new Workbook(sourceDir + "sampleGenerateDatabarImage.xlsx"); | |
// Access first worksheet | |
Worksheet worksheet = workbook.getWorksheets().get(0); | |
// Access the cell which contains conditional formatting databar | |
Cell cell = worksheet.getCells().get("C1"); | |
// Create and get the conditional formatting of the worksheet | |
int idx = worksheet.getConditionalFormattings().add(); | |
FormatConditionCollection fcc = worksheet.getConditionalFormattings().get(idx); | |
fcc.addCondition(FormatConditionType.DATA_BAR); | |
fcc.addArea(CellArea.createCellArea("C1", "C4")); | |
// Access the conditional formatting databar | |
DataBar dbar = fcc.get(0).getDataBar(); | |
// Create image or print options | |
ImageOrPrintOptions opts = new ImageOrPrintOptions(); | |
opts.setImageType(ImageType.PNG); | |
// Get the image bytes of the databar | |
byte[] imgBytes = dbar.toImage(cell, opts); | |
// Write image bytes on the disk | |
FileOutputStream out = new FileOutputStream(outputDir + "databar.png"); | |
out.write(imgBytes); | |
out.close(); | |
// save workbook with databars | |
workbook.save(outputDir + "databar.xlsx"); |