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224 lines
5.9 KiB
224 lines
5.9 KiB
9 years ago
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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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}
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