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Merge pull request #454 from civgio/hotfix/issue_453
#453: Add new data validation: ListFormulaDataValidation.
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fastexcel-writer/src/main/java/org/dhatim/fastexcel/ListFormulaDataValidation.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,127 @@ | ||
| package org.dhatim.fastexcel; | ||
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| import java.io.IOException; | ||
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| /** | ||
| * A ListDataValidation defines a DataValidation for a worksheet of type = "list" | ||
| */ | ||
| public class ListFormulaDataValidation implements DataValidation { | ||
| private final static String TYPE = "list"; | ||
| private final Range range; | ||
| private final Formula formula; | ||
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| private boolean allowBlank = true; | ||
| private boolean showDropdown = true; | ||
| private DataValidationErrorStyle errorStyle = DataValidationErrorStyle.INFORMATION; | ||
| private boolean showErrorMessage = false; | ||
| private String errorTitle; | ||
| private String error; | ||
|
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| /** | ||
| * Constructor | ||
| * | ||
| * @param range The Range this validation is applied to | ||
| * @param formula The Formula of this validation to retrieve the list | ||
| */ | ||
| ListFormulaDataValidation(Range range, Formula formula) { | ||
| this.range = range; | ||
| this.formula = formula; | ||
| } | ||
|
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| /** | ||
| * whether blank cells should pass the validation | ||
| * | ||
| * @param allowBlank whether or not to allow blank values | ||
| * @return this ListDataValidation | ||
| */ | ||
| public ListFormulaDataValidation allowBlank(boolean allowBlank) { | ||
| this.allowBlank = allowBlank; | ||
| return this; | ||
| } | ||
|
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| /** | ||
| * Whether Excel will show an in-cell dropdown list | ||
| * containing the validation list | ||
| * | ||
| * @param showDropdown whether or not to show the dropdown | ||
| * @return this ListDataValidation | ||
| */ | ||
| public ListFormulaDataValidation showDropdown(boolean showDropdown) { | ||
| this.showDropdown = showDropdown; | ||
| return this; | ||
| } | ||
|
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| /** | ||
| * The style of error alert used for this data validation. | ||
| * | ||
| * @param errorStyle The DataValidationErrorStyle for this DataValidation | ||
| * @return this ListDataValidation | ||
| */ | ||
| public ListFormulaDataValidation errorStyle(DataValidationErrorStyle errorStyle) { | ||
| this.errorStyle = errorStyle; | ||
| return this; | ||
| } | ||
|
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| /** | ||
| * Whether to display the error alert message when an invalid value has been entered. | ||
| * | ||
| * @param showErrorMessage whether to display the error message | ||
| * @return this ListDataValidation | ||
| */ | ||
| public ListFormulaDataValidation showErrorMessage(boolean showErrorMessage) { | ||
| this.showErrorMessage = showErrorMessage; | ||
| return this; | ||
| } | ||
|
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| /** | ||
| * Title bar text of error alert. | ||
| * | ||
| * @param errorTitle The error title | ||
| * @return this ListDataValidation | ||
| */ | ||
| public ListFormulaDataValidation errorTitle(String errorTitle) { | ||
| this.errorTitle = errorTitle; | ||
| return this; | ||
| } | ||
|
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| /** | ||
| * Message text of error alert. | ||
| * | ||
| * @param error The error message | ||
| * @return this ListDataValidation | ||
| */ | ||
| public ListFormulaDataValidation error(String error) { | ||
| this.error = error; | ||
| return this; | ||
| } | ||
|
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| /** | ||
| * Write this dataValidation as an XML element. | ||
| * | ||
| * @param w Output writer. | ||
| * @throws IOException If an I/O error occurs. | ||
| */ | ||
| @Override | ||
| public void write(Writer w) throws IOException { | ||
| w | ||
| .append("<dataValidation sqref=\"") | ||
| .append(range.toString()) | ||
| .append("\" type=\"") | ||
| .append(TYPE) | ||
| .append("\" allowBlank=\"") | ||
| .append(String.valueOf(allowBlank)) | ||
| .append("\" showDropDown=\"") | ||
| .append(String.valueOf(!showDropdown)) // for some reason, this is the inverse of what you'd expect | ||
| .append("\" errorStyle=\"") | ||
| .append(errorStyle.toString()) | ||
| .append("\" showErrorMessage=\"") | ||
| .append(String.valueOf(showErrorMessage)) | ||
| .append("\" errorTitle=\"") | ||
| .append(errorTitle) | ||
| .append("\" error=\"") | ||
| .append(error) | ||
| .append("\"><formula1>") | ||
| .append(formula.getExpression()) | ||
| .append("</formula1></dataValidation>"); | ||
| } | ||
| } |
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