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224 lines
5.9 KiB
224 lines
5.9 KiB
package com.fr.grid; |
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import java.awt.Toolkit; |
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import java.awt.event.KeyEvent; |
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import java.awt.event.KeyListener; |
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import com.fr.design.mainframe.ElementCasePane; |
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import com.fr.grid.selection.CellSelection; |
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import com.fr.grid.selection.FloatSelection; |
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import com.fr.grid.selection.Selection; |
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import com.fr.report.elementcase.ElementCase; |
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/** |
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* |
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* @editor zhou |
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* @since 2012-3-23上午10:55:36 |
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*/ |
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public class GridKeyListener implements KeyListener { |
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private Grid grid; |
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// Keypressed last time |
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private long keyPressedLastTime = 0; |
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private boolean isKeyPressedContentChanged = false; |
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public GridKeyListener(Grid grid) { |
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this.grid = grid; |
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} |
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public void keyPressed(KeyEvent evt) { |
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if (!grid.isEnabled() || evt.isConsumed()) {// 如果用户在自己的KyeListener里面consume了.就不执行下面的代码了. |
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return; |
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} |
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KeyEvent newEvt = KeyEventWork.processKeyEvent(evt); |
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if (newEvt == null) { |
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return; |
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} |
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long systemCurrentTime = System.currentTimeMillis(); |
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int code = evt.getKeyCode(); |
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boolean isNeedRepaint = false; |
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ElementCasePane reportPane = grid.getElementCasePane(); |
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ElementCase report = reportPane.getEditingElementCase(); |
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if (reportPane.getSelection() instanceof FloatSelection) { |
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if (systemCurrentTime - keyPressedLastTime <= 2) { |
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return; |
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} else { |
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keyPressedLastTime = systemCurrentTime; |
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} |
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dealWithFloatSelection(reportPane, code); |
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} else { |
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if (systemCurrentTime - keyPressedLastTime <= 32) { |
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return; |
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} else { |
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keyPressedLastTime = systemCurrentTime; |
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} |
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dealWithCellSelection(evt, code); |
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} |
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switch (code) { |
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case KeyEvent.VK_PAGE_UP: {// page up |
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reportPane.getVerticalScrollBar().setValue(Math.max(0, grid.getVerticalValue() - grid.getVerticalExtent())); |
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isNeedRepaint = true; |
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break; |
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} |
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case KeyEvent.VK_PAGE_DOWN: {// page down |
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reportPane.getVerticalScrollBar().setValue(grid.getVerticalValue() + grid.getVerticalExtent()); |
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isNeedRepaint = true; |
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break; |
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} |
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// Richie:Ctrl + A全选单元格 |
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case KeyEvent.VK_A: |
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if (code == KeyEvent.VK_A && evt.isControlDown()) { |
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reportPane.setSelection(new CellSelection(0, 0, report.getColumnCount(), report.getRowCount())); |
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isNeedRepaint = true; |
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} |
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isNeedRepaint = true; |
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break; |
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} |
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if (isNeedRepaint) { |
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reportPane.repaint(); |
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} |
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} |
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/** |
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* 单选中悬浮元素时,只处理4个方向键 |
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* |
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* @param reportPane |
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* @param code |
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*/ |
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private void dealWithFloatSelection(ElementCasePane reportPane, int code) { |
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boolean isContentChanged = false; |
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FloatSelection floatselection = (FloatSelection)reportPane.getSelection(); |
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switch (code) { |
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case KeyEvent.VK_LEFT: {// left |
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floatselection.moveLeft(reportPane); |
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isContentChanged = true; |
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break; |
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} |
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case KeyEvent.VK_RIGHT: {// right |
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floatselection.moveRight(reportPane); |
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isContentChanged = true; |
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break; |
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} |
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case KeyEvent.VK_UP: {// up |
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floatselection.moveUp(reportPane); |
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isContentChanged = true; |
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break; |
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} |
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case KeyEvent.VK_DOWN: {// down |
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floatselection.moveDown(reportPane); |
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isContentChanged = true; |
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break; |
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} |
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} |
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if (isContentChanged) { |
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grid.getElementCasePane().repaint(); |
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this.isKeyPressedContentChanged = true; |
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} |
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} |
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private void dealWithCellSelection(KeyEvent evt, int code) { |
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switch (code) { |
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case KeyEvent.VK_ESCAPE: { |
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if (grid.isCellEditing()) { |
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grid.cancelEditing(); |
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} |
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break; |
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} |
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case KeyEvent.VK_F2: { |
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if (!grid.isCellEditing()) { |
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grid.startEditing(); |
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} |
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break; |
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} |
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} |
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// 支持小键盘 |
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if (IS_NUM_PAD_KEY(code)) { |
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keyTyped(evt); |
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} |
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} |
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public void keyReleased(KeyEvent evt) { |
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if (!grid.isEnabled() || evt.isConsumed()) { |
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return; |
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} |
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KeyEvent newEvt = KeyEventWork.processKeyEvent(evt); |
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if (newEvt == null) { |
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return; |
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} |
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if (this.isKeyPressedContentChanged) { |
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grid.getElementCasePane().fireTargetModified(); |
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this.isKeyPressedContentChanged = false; |
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} |
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} |
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public void keyTyped(KeyEvent evt) { |
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if (!grid.isEnabled() || evt.isConsumed()) { |
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return; |
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} |
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KeyEvent newEvt = KeyEventWork.processKeyEvent(evt); |
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if (newEvt == null || evt.isControlDown()) {// uneditable. |
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return; |
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} |
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char ch = evt.getKeyChar(); |
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if (ch == KeyEvent.VK_TAB) {// 禁止Tab键. |
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return; |
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} |
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int code = evt.getKeyCode(); |
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if (Character.isDefined(ch)) {// VK_SUBTRACT小键盘的减号 |
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Selection s = grid.getElementCasePane().getSelection(); |
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if (s instanceof CellSelection) { |
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if (!grid.getElementCasePane().isSelectedOneCell()) { |
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Toolkit.getDefaultToolkit().beep(); |
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return; |
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} |
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if (!grid.isCellEditing()) { |
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grid.startEditing(true); |
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} |
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if (grid.getCellEditor() != null && grid.editorComponent != null) { |
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if (IS_NUM_PAD_KEY(code)) { |
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// 103 - 55 = 48, 小键盘和大键盘数字的差值 48 |
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KeyEvent ke = new KeyEvent(grid, KeyEvent.KEY_PRESSED, 0, 0, code - 48, ch); |
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grid.editorComponent.dispatchEvent(ke); |
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ke.consume(); |
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} else { |
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if (!evt.isConsumed()) { |
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grid.editorComponent.dispatchEvent(evt); |
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} |
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} |
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} |
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} |
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} |
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} |
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/** |
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* 小键盘 |
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* @param code |
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* @return |
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*/ |
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private static boolean IS_NUM_PAD_KEY(int code){ |
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return code == KeyEvent.VK_NUMPAD0 || code == KeyEvent.VK_NUMPAD1 |
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|| code == KeyEvent.VK_NUMPAD2 |
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|| code == KeyEvent.VK_NUMPAD3 |
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|| code == KeyEvent.VK_NUMPAD4 |
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|| code == KeyEvent.VK_NUMPAD5 |
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|| code == KeyEvent.VK_NUMPAD6 |
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|| code == KeyEvent.VK_NUMPAD7 |
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|| code == KeyEvent.VK_NUMPAD8 |
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|| code == KeyEvent.VK_NUMPAD9 |
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|| code == KeyEvent.VK_MULTIPLY |
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|| code == KeyEvent.VK_ADD |
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|| code == KeyEvent.VK_SUBTRACT |
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|| code == KeyEvent.VK_DECIMAL |
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|| code == KeyEvent.VK_DIVIDE; |
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} |
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} |