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97 changes: 97 additions & 0 deletions
97
src/main/java/org/jabref/gui/maintable/SmartConstrainedResizePolicy.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| package org.jabref.gui.maintable; | ||
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| import java.lang.reflect.Field; | ||
| import java.lang.reflect.InvocationTargetException; | ||
| import java.lang.reflect.Method; | ||
| import java.util.List; | ||
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| import javafx.scene.control.ResizeFeaturesBase; | ||
| import javafx.scene.control.TableColumnBase; | ||
| import javafx.scene.control.TableView; | ||
| import javafx.util.Callback; | ||
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| import org.apache.commons.logging.Log; | ||
| import org.apache.commons.logging.LogFactory; | ||
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| /** | ||
| * This resize policy is almost the same as {@link TableView#CONSTRAINED_RESIZE_POLICY} | ||
| * We make sure that the width of all columns sums up to the total width of the table. | ||
| * However, in contrast to {@link TableView#CONSTRAINED_RESIZE_POLICY} we size the columns initially by their preferred width. | ||
| */ | ||
| public class SmartConstrainedResizePolicy implements Callback<TableView.ResizeFeatures, Boolean> { | ||
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| private static final Log LOGGER = LogFactory.getLog(SmartConstrainedResizePolicy.class); | ||
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| @Override | ||
| public Boolean call(TableView.ResizeFeatures prop) { | ||
| if (prop.getColumn() == null) { | ||
| return initColumnSize(prop.getTable()); | ||
| } else { | ||
| return constrainedResize(prop); | ||
| } | ||
| } | ||
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| private Boolean initColumnSize(TableView<?> table) { | ||
| double tableWidth = table.getWidth(); | ||
| List<? extends TableColumnBase<?, ?>> visibleLeafColumns = table.getVisibleLeafColumns(); | ||
| double totalWidth = visibleLeafColumns.stream().mapToDouble(TableColumnBase::getWidth).sum(); | ||
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| if (Math.abs(totalWidth - tableWidth) > 1) { | ||
| double totalPrefWidth = visibleLeafColumns.stream().mapToDouble(TableColumnBase::getPrefWidth).sum(); | ||
| if (totalPrefWidth > 0) { | ||
| for (TableColumnBase col : visibleLeafColumns) { | ||
| double share = col.getPrefWidth() / totalPrefWidth; | ||
| double newSize = tableWidth * share; | ||
| resize(col, newSize - col.getWidth()); | ||
| } | ||
| } | ||
| } | ||
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| return false; | ||
| } | ||
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| private void resize(TableColumnBase column, double delta) { | ||
| // We have to use reflection since TableUtil is not visible to us | ||
| try { | ||
| Class<?> clazz = Class.forName("javafx.scene.control.TableUtil"); | ||
| Method constrainedResize = clazz.getDeclaredMethod("resize", TableColumnBase.class, double.class); | ||
| constrainedResize.setAccessible(true); | ||
| constrainedResize.invoke(null, column, delta); | ||
| } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException | ClassNotFoundException e) { | ||
| LOGGER.error("Could not invoke resize in TableUtil", e); | ||
| } | ||
| } | ||
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| private Boolean constrainedResize(TableView.ResizeFeatures<?> prop) { | ||
| TableView<?> table = prop.getTable(); | ||
| List<? extends TableColumnBase<?, ?>> visibleLeafColumns = table.getVisibleLeafColumns(); | ||
| return constrainedResize(prop, | ||
| false, | ||
| getContentWidth(table), | ||
| visibleLeafColumns); | ||
| } | ||
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| private Boolean constrainedResize(TableView.ResizeFeatures prop, Boolean isFirstRun, Double contentWidth, List<? extends TableColumnBase<?, ?>> visibleLeafColumns) { | ||
| // We have to use reflection since TableUtil is not visible to us | ||
| try { | ||
| Class<?> clazz = Class.forName("javafx.scene.control.TableUtil"); | ||
| Method constrainedResize = clazz.getDeclaredMethod("constrainedResize", ResizeFeaturesBase.class, Boolean.TYPE, Double.TYPE, List.class); | ||
| constrainedResize.setAccessible(true); | ||
| Object returnValue = constrainedResize.invoke(null, prop, isFirstRun, contentWidth, visibleLeafColumns); | ||
| return (Boolean) returnValue; | ||
| } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException | ClassNotFoundException e) { | ||
| LOGGER.error("Could not invoke constrainedResize in TableUtil", e); | ||
| return false; | ||
| } | ||
| } | ||
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| private Double getContentWidth(TableView<?> table) { | ||
| try { | ||
| Field privateStringField = TableView.class.getDeclaredField("contentWidth"); | ||
| privateStringField.setAccessible(true); | ||
| return (Double) privateStringField.get(table); | ||
| } catch (IllegalAccessException | NoSuchFieldException e) { | ||
| return 0d; | ||
| } | ||
| } | ||
| } |
23 changes: 0 additions & 23 deletions
23
src/main/java/org/jabref/gui/maintable/SmartConstraintedResizePolicy.java
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