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@ -1,13 +1,14 @@
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package com.fr.design.data.datapane; |
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import com.fr.design.ui.util.UIUtil; |
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import java.awt.Component; |
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import java.awt.event.ItemEvent; |
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import java.util.Iterator; |
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import java.util.Map.Entry; |
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import javax.swing.DefaultComboBoxModel; |
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import javax.swing.JLabel; |
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import javax.swing.JList; |
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import javax.swing.event.AncestorEvent; |
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import javax.swing.event.AncestorListener; |
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import javax.swing.event.ChangeEvent; |
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import javax.swing.event.ChangeListener; |
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@ -32,16 +33,53 @@ public class TableDataComboBox extends UIComboBox implements Prepare4DataSourceC
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protected java.util.Map<String, TableDataWrapper> resMap; |
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private java.util.Map<String, TableDataWrapper> dsMap; |
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private static final long serialVersionUID = 1L; |
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private boolean refresModel = false; |
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private String treeName; //树数据集本身的名字
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private boolean refreshModel = false; |
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private String treeName = StringUtils.EMPTY; //树数据集本身的名字
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private ChangeListener changeListener; |
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/** |
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* 兼容插件调用 |
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* |
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* @param source 传入的数据源 |
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*/ |
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public TableDataComboBox(TableDataSource source){ |
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this(source,StringUtils.EMPTY); |
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this(); |
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} |
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/** |
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* 兼容插件调用 |
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* |
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* @param source 传入的数据源 |
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* @param treeName 树数据集名称 |
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*/ |
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public TableDataComboBox(TableDataSource source, String treeName) { |
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this(treeName); |
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} |
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/** |
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* 根据树名称创建TableDataComboBox。 |
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* |
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* @param treeName 树数据集名称 |
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*/ |
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public TableDataComboBox(String treeName) { |
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this(); |
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// 传入树数据集名称
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this.treeName = treeName; |
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} |
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/** |
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* 初始化TableDataComboBox |
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*/ |
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public TableDataComboBox() { |
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super(); |
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this.treeName = treeName; |
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setListCellRenderer(); |
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addComboBoxListener(); |
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} |
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/** |
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* 设置渲染器 |
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*/ |
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private void setListCellRenderer() { |
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this.setRenderer(new UIComboBoxRenderer() { |
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private static final long serialVersionUID = 1L; |
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@ -60,37 +98,66 @@ public class TableDataComboBox extends UIComboBox implements Prepare4DataSourceC
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return renderer; |
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} |
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}); |
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refresh(source); |
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registerDSChangeListener(); |
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} |
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/** |
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* refresh ComboBox |
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* @param source |
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*/ |
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/** |
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* 在comboBox可见时添加数据集响应事件与refresh操作 |
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*/ |
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private void addComboBoxListener() { |
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this.addAncestorListener(new AncestorListener() { |
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@Override |
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public void ancestorAdded(AncestorEvent event) { |
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registerDSChangeListener(); |
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refresh(DesignTableDataManager.getEditingTableDataSource()); |
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} |
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@Override |
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public void ancestorRemoved(AncestorEvent event) { |
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DesignTableDataManager.removeDsChangeListener(changeListener); |
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} |
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@Override |
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public void ancestorMoved(AncestorEvent event) { |
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} |
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}); |
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} |
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/** |
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* 刷新数据源并更新下拉框的模型和选中项 |
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* |
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* @param source 数据源，用于刷新模型 |
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*/ |
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public void refresh(TableDataSource source) { |
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TableDataWrapper dataWrapper = getSelectedItem(); |
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refresModel = true; |
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setResMap(source); |
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setDsMap(); |
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DefaultComboBoxModel model = new DefaultComboBoxModel(); |
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this.setModel(model); |
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model.addElement(UIConstants.PENDING); |
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Iterator<Entry<String, TableDataWrapper>> entryIt = dsMap.entrySet().iterator(); |
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while (entryIt.hasNext()) { |
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TableDataWrapper tableDataWrapper = entryIt.next().getValue(); |
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if (!ComparatorUtils.equals(tableDataWrapper.getTableDataName(), treeName)) { |
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model.addElement(tableDataWrapper); |
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} |
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} |
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if (dataWrapper != null) { |
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if (DesignTableDataManager.isDsNameChanged(dataWrapper.getTableDataName())) { |
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this.setSelectedTableDataByName(DesignTableDataManager.getChangedDsNameByOldDsName(dataWrapper.getTableDataName())); |
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} else { |
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this.getModel().setSelectedItem(dataWrapper); |
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} |
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} |
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refresModel = false; |
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UIUtil.executeAsyncTaskAndUpdateUI( |
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() -> { |
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setResMap(source); |
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setDsMap(); |
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return null; |
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}, |
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result -> refreshComboBoxModel() |
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); |
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} |
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/** |
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* 刷新下拉框模型，同时保留当前选中的数据项 |
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* <p> |
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* 1. 获取下拉框中当前选中的数据项 |
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* 2. 刷新下拉框的模型（清空并重新填充数据），此操作会重置选中的数据项 |
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* 3. 在刷新模型后，恢复之前选中的数据项 |
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* <p> |
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* 关于 `refreshModel` 的作用： |
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* 1. **抑制事件触发**：下拉框模型在调用 `addElement` 方法时会触发 `fireItemStateChanged` 事件， |
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* 通过标记 `refreshModel`，可以在刷新过程中抑制此事件 |
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* 2. **处理异步和顺序问题**：由于取数操作是异步的，可能会导致回调后的 UI 操作与其他逻辑（如 `populateBean`）的调用顺序交错。 |
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* 标记 `refreshModel` 可确保在刷新模型时，不触发选中事件，从而避免逻辑干扰 |
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* 3. **逻辑清晰性**：刷新模型本质上是更新数据源的操作，不应触发与用户交互相关的选中事件，避免对上层逻辑造成额外负担 |
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*/ |
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private void refreshComboBoxModel() { |
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refreshModel = true; |
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TableDataWrapper selectedItem = getSelectedItem(); |
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refreshModel(); |
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updateSelectedItem(selectedItem); |
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refreshModel = false; |
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} |
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protected void setResMap(TableDataSource source) { |
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@ -101,6 +168,26 @@ public class TableDataComboBox extends UIComboBox implements Prepare4DataSourceC
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dsMap = DesignTableDataManager.getAllDataSetIncludingProcedure(resMap); |
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} |
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private void refreshModel() { |
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//创建ComboBox模型并设置
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DefaultComboBoxModel model = new DefaultComboBoxModel(); |
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this.setModel(model); |
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model.addElement(UIConstants.PENDING); |
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// 遍历添加所有数据项到模型，树数据集comboBox下拉模型中排除掉本身
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dsMap.values().stream() |
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.filter(tableDataWrapper -> tableDataWrapper != null && !ComparatorUtils.equals(tableDataWrapper.getTableDataName(), treeName)) |
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.forEach(model::addElement); |
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} |
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private void updateSelectedItem(TableDataWrapper dataWrapper) { |
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if (dataWrapper != null) { |
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if (DesignTableDataManager.isDsNameChanged(dataWrapper.getTableDataName())) { |
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this.setSelectedTableData(DesignTableDataManager.getChangedDsNameByOldDsName(dataWrapper.getTableDataName())); |
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} else { |
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this.getModel().setSelectedItem(dataWrapper); |
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} |
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} |
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} |
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/** |
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@ -117,8 +204,18 @@ public class TableDataComboBox extends UIComboBox implements Prepare4DataSourceC
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} |
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public void setSelectedTableDataByName(String name) { |
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TableDataWrapper tableDataWrappe = dsMap.get(name) == null? dsMap.get(name + "_P_CURSOR") : dsMap.get(name); |
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this.getModel().setSelectedItem(tableDataWrappe); |
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setResMap(DesignTableDataManager.getEditingTableDataSource()); |
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setDsMap(); |
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// 数据集名称修改后控件传入的还是旧名称
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if (DesignTableDataManager.isDsNameChanged(name)) { |
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name = DesignTableDataManager.getChangedDsNameByOldDsName(name); |
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} |
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setSelectedTableData(name); |
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} |
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private void setSelectedTableData(String name) { |
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TableDataWrapper tableDataWrapper = dsMap.get(name) == null ? dsMap.get(name + "_P_CURSOR") : dsMap.get(name); |
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this.getModel().setSelectedItem(tableDataWrapper); |
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} |
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@Override |
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@ -132,7 +229,7 @@ public class TableDataComboBox extends UIComboBox implements Prepare4DataSourceC
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//august:addElement方法竟然会fireItemStateChanged，蛋疼
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@Override |
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protected void fireItemStateChanged(ItemEvent e) { |
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if (!refresModel) { |
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if (!refreshModel) { |
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super.fireItemStateChanged(e); |
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} |
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} |
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superman
1 month ago