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284 lines
12 KiB
284 lines
12 KiB
9 years ago
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package com.fr.grid.dnd;
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import java.awt.Point;
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import java.awt.datatransfer.DataFlavor;
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import java.awt.datatransfer.Transferable;
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import java.awt.dnd.DropTarget;
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import java.awt.dnd.DropTargetAdapter;
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import java.awt.dnd.DropTargetContext;
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import java.awt.dnd.DropTargetDragEvent;
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import java.awt.dnd.DropTargetDropEvent;
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import java.awt.event.ActionEvent;
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import javax.swing.JOptionPane;
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import javax.swing.JPopupMenu;
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import com.fr.base.FRContext;
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import com.fr.design.actions.ToggleButtonUpdateAction;
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import com.fr.design.actions.UpdateAction;
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import com.fr.design.gui.ibutton.UIToggleButton;
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import com.fr.general.Inter;
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import com.fr.general.data.TableDataColumn;
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import com.fr.design.mainframe.ElementCasePane;
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import com.fr.grid.Grid;
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import com.fr.grid.GridUtils;
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import com.fr.grid.selection.CellSelection;
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import com.fr.grid.selection.Selection;
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import com.fr.report.cell.CellElement;
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import com.fr.report.cell.DefaultTemplateCellElement;
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import com.fr.report.cell.TemplateCellElement;
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import com.fr.report.cell.cellattr.CellExpandAttr;
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import com.fr.report.cell.cellattr.core.group.DSColumn;
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import com.fr.report.elementcase.TemplateElementCase;
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import com.fr.report.poly.PolyECBlock;
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import com.fr.report.worksheet.FormElementCase;
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import com.fr.report.worksheet.WorkSheet;
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import com.fr.stable.ArrayUtils;
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import com.fr.stable.Constants;
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import com.fr.design.utils.gui.GUICoreUtils;
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/**
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* the class used for drop an element to the grid
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*
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* @editor zhou 2012-3-22下午2:04:41
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*/
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public class ElementCasePaneDropTarget extends DropTargetAdapter {
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private static final int LEFT_2_RIGHT = 0;
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private static final int RIGHT_2_LEFT = 1;
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private static final int TOP_2_BOTTOM = 2;
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private static final int BOTTOM_2_TOP = 3;
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private ElementCasePane ePane;
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// AUGUST:notice 这个cs只是鼠标放下的那个去的那个单元格的副本
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private CellSelection cs;
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private String[][] doubleArray = null;
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public ElementCasePaneDropTarget(ElementCasePane ePane) {
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this.ePane = ePane;
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new DropTarget(ePane.getGrid(), this);
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}
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@Override
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public void drop(DropTargetDropEvent dtde) {
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Point p = dtde.getLocation();
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DropTargetContext dtc = dtde.getDropTargetContext();
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Grid grid = (Grid) dtc.getComponent();
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Selection selection = grid.getElementCasePane().getSelection();
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TemplateElementCase report = grid.getElementCasePane().getEditingElementCase();
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if (!(selection instanceof CellSelection) || report == null) {
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dtde.rejectDrop();
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return;
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}
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CellSelection cs = (CellSelection) selection;
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try {
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Transferable tr = dtde.getTransferable();
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DataFlavor[] flavors = tr.getTransferDataFlavors();
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for (int i = 0; i < flavors.length; i++) {
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if (!tr.isDataFlavorSupported(flavors[i])) {
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continue;
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}
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dtde.acceptDrop(dtde.getDropAction());
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Object userObj = tr.getTransferData(flavors[i]);
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if (userObj instanceof Class) {
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Class cls = (Class) userObj;
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grid.startCellEditingAt_DEC(cs.getColumn(), cs.getRow(), cls, false);
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} else if (userObj instanceof String[][]) {
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doubleArray = (String[][]) userObj;
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// marks:当列数为一时候，不需要菜单
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if (doubleArray.length > 1) {
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JPopupMenu popMenu = new JPopupMenu();
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GUICoreUtils.showPopupMenu(createPopupMenu(popMenu), ePane.getGrid(), (int) p.getX() + 1, (int) p.getY() + 1);
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} else {
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new SortAction(LEFT_2_RIGHT).sortCellElement();
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}
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}
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dtde.dropComplete(true);
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ePane.fireSelectionChangeListener();
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}
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dtde.rejectDrop();
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} catch (Exception e) {
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// dtde.rejectDrop();
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FRContext.getLogger().error(e.getMessage(), e);
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}
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}
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private JPopupMenu createPopupMenu(JPopupMenu popupMenu) {
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popupMenu = new JPopupMenu();
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popupMenu.add(new SortAction(LEFT_2_RIGHT).createMenuItem());
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popupMenu.add(new SortAction(RIGHT_2_LEFT).createMenuItem());
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popupMenu.add(new SortAction(TOP_2_BOTTOM).createMenuItem());
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popupMenu.add(new SortAction(BOTTOM_2_TOP).createMenuItem());
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return popupMenu;
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}
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private class SortAction extends UpdateAction implements ToggleButtonUpdateAction {
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private int direction;
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public SortAction(int i) {
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direction = i;
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if (i == LEFT_2_RIGHT) {
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this.setName(Inter.getLocText("Utils-Left_to_Right_a"));
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} else if (i == RIGHT_2_LEFT) {
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this.setName(Inter.getLocText("Utils-Right_to_Left"));
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} else if (i == TOP_2_BOTTOM) {
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this.setName(Inter.getLocText("Utils-Top_to_Bottom_a"));
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} else if (i == BOTTOM_2_TOP) {
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this.setName(Inter.getLocText("Utils-Bottom_to_Top"));
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}
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this.setMnemonic('S');
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}
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@Override
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public void actionPerformed(ActionEvent e) {
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sortCellElement();
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}
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@Override
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public UIToggleButton createToolBarComponent() {
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return GUICoreUtils.createToolBarComponent(this);
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}
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private void sortCellElement() {
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cs = (CellSelection) ePane.getSelection();
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if (doubleArray == null) {
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return;
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}
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if (!canMove()) {
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return;
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}
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int columnCount = doubleArray.length;
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for (int i = 0; i < columnCount; i++) {
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if (i != 0) {
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CellElement cellElement = null;
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CellSelection cs = (CellSelection) ePane.getSelection();
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if (direction == LEFT_2_RIGHT) {
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cellElement = ePane.getEditingElementCase().getCellElement(cs.getColumn() + cs.getColumnSpan(), cs.getRow());
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// marks:如果单元格为空，新建一个
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if (cellElement == null) {
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ePane.setSelection(new CellSelection(cs.getColumn() + cs.getColumnSpan(), cs.getRow(), 1, 1));
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}
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} else if (direction == RIGHT_2_LEFT) {
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cellElement = ePane.getEditingElementCase().getCellElement(cs.getColumn() - cs.getColumnSpan(), cs.getRow());
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// marks:如果单元格为空，新建一个
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if (cellElement == null) {
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ePane.setSelection(new CellSelection(cs.getColumn() - cs.getColumnSpan(), cs.getRow(), 1, 1));
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}
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} else if (direction == TOP_2_BOTTOM) {
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cellElement = ePane.getEditingElementCase().getCellElement(cs.getColumn(), cs.getRow() + cs.getRowSpan());
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// marks:如果单元格为空，新建一个
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if (cellElement == null) {
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ePane.setSelection(new CellSelection(cs.getColumn(), cs.getRow() + cs.getRowSpan(), 1, 1));
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}
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} else if (direction == BOTTOM_2_TOP) {
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cellElement = ePane.getEditingElementCase().getCellElement(cs.getColumn(), cs.getRow() - cs.getRowSpan());
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// marks:如果单元格为空，新建一个
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if (cellElement == null) {
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ePane.setSelection(new CellSelection(cs.getColumn(), cs.getRow() - cs.getRowSpan(), 1, 1));
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}
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}
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if (cellElement != null) {
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ePane.setSelection(new CellSelection(cellElement.getColumn(), cellElement.getRow(), cellElement.getColumnSpan(), cellElement.getRowSpan()));
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}
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}
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paintDropCellElement(i);
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}
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}
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private boolean canMove() {
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int columnCount = doubleArray.length;
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if (direction == RIGHT_2_LEFT) {
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int k = cs.getColumn() - columnCount + 1;
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if (k < 0) {
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JOptionPane.showMessageDialog(ePane, Inter.getLocText("Utils-Beyond_the_left_side_of_Border"));
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return false;
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}
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} else if (direction == BOTTOM_2_TOP) {
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int k = cs.getRow() - columnCount + 1;
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if (k < 0) {
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JOptionPane.showMessageDialog(ePane, Inter.getLocText("Utils-Beyond_the_top_side_of_Border"));
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return false;
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}
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}
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if (ePane.mustInVisibleRange()) {
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if (direction == LEFT_2_RIGHT) {
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if (!GridUtils.canMove(ePane, cs.getColumn() + columnCount - 1, cs.getRow())) {
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JOptionPane.showMessageDialog(ePane, Inter.getLocText("Utils-Beyond_the_right_side_of_Border"));
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return false;
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}
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} else if (direction == TOP_2_BOTTOM) {
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if (!GridUtils.canMove(ePane, cs.getRow(), cs.getColumn() + columnCount - 1)) {
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JOptionPane.showMessageDialog(ePane, Inter.getLocText("Utils-Beyond_the_bottom_side_of_Border"));
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return false;
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}
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}
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}
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return true;
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}
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}
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private void paintDropCellElement(int i) {
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TemplateElementCase report = ePane.getEditingElementCase();
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TemplateCellElement curCellElement = new DefaultTemplateCellElement();
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if (report instanceof WorkSheet || report instanceof PolyECBlock || report instanceof FormElementCase) {
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String[] attribute = doubleArray[i];
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if (ArrayUtils.isEmpty(attribute)) {
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return;
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}
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Object newLinearDSColumn = null;
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DSColumn dsColumn = new DSColumn();
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dsColumn.setDSName(attribute[0]);
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String ColumnName = attribute[1];
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TableDataColumn column;
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if (ColumnName.length() > 0 && ColumnName.charAt(0) == '#') {
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int serialNumber = Integer.parseInt(ColumnName.substring(1));
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column = TableDataColumn.createColumn(serialNumber);
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} else {
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column = TableDataColumn.createColumn(ColumnName);
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}
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dsColumn.setColumn(column);
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newLinearDSColumn = dsColumn;
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CellSelection cs = (CellSelection) ePane.getSelection();
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curCellElement = report.getTemplateCellElement(cs.getColumn(), cs.getRow());
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CellExpandAttr cellExPandAttr = new CellExpandAttr();
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cellExPandAttr.setDirection(Constants.TOP_TO_BOTTOM);
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if (curCellElement == null) {
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curCellElement = new DefaultTemplateCellElement(cs.getColumn(), cs.getRow(), cs.getColumnSpan(), cs.getRowSpan(), newLinearDSColumn);
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report.addCellElement(curCellElement);
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} else {
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// marks:直接覆盖值
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curCellElement.setValue(newLinearDSColumn);
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curCellElement.setCellExpandAttr(cellExPandAttr);
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}
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curCellElement.setCellExpandAttr(cellExPandAttr);
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}
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ePane.setSupportDefaultParentCalculate(true);
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ePane.fireTargetModified();
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ePane.setSupportDefaultParentCalculate(false);
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}
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@Override
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public void dragEnter(DropTargetDragEvent dtde) {
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dtde.acceptDrag(dtde.getDropAction());
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}
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@Override
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public void dragOver(DropTargetDragEvent dtde) {
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Point p = dtde.getLocation();
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DropTargetContext dtc = dtde.getDropTargetContext();
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Grid grid = (Grid) dtc.getComponent();
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grid.doMousePress(p.getX(), p.getY());
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dtde.acceptDrag(dtde.getDropAction());
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}
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}
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