CanvasKeyListener.java
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net.sf.freecol.client.gui |
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FreeCol |
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These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.
/**
* Copyright (C) 2002-2007 The FreeCol Team
*
* This file is part of FreeCol.
*
* FreeCol is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* FreeCol is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with FreeCol. If not, see <http://www.gnu.org/licenses/>.
*/
package net.sf.freecol.client.gui;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.logging.Level;
import java.util.logging.Logger;
import net.sf.freecol.FreeCol;
import net.sf.freecol.client.control.InGameController;
import net.sf.freecol.common.model.Map.Direction;
/**
* Listens to keys being pressed at the level of the Canvas.
*/
public final class CanvasKeyListener implements KeyListener {
private static final Logger logger = Logger.getLogger(CanvasKeyListener.class.getName());
private final Canvas parent;
private final InGameController inGameController;
/**
* The constructor to use.
*
* @param parent The container of all child panels.
* @param inGameController The controller to be used for handling the
* events.
*/
public CanvasKeyListener(Canvas parent, InGameController inGameController) {
this.parent = parent;
this.inGameController = inGameController;
}
/**
* Invoked when a key has been pressed.
*
* @param e The event that holds key-information.
*/
public void keyPressed(KeyEvent e) {
if (parent.getGUI().isDragStarted()) {
parent.getGUI().stopDrag();
}
if (e.isShiftDown() && e.isControlDown() && e.getKeyCode() == KeyEvent.VK_D) {
inGameController.setInDebugMode(!FreeCol.isInDebugMode());
return;
}
if (e.getModifiers() != 0) {
return;
}
try {
int viewMode = parent.getGUI().getViewMode().getView();
if (viewMode == ViewMode.MOVE_UNITS_MODE) {
moveUnit(e);
} else if (viewMode == ViewMode.VIEW_TERRAIN_MODE) {
moveCursor(e);
}
} catch (Exception ex) {
logger.log(Level.WARNING, "Exception occurred while handling KeyEvent.", ex);
}
}
private void moveCursor(KeyEvent e) {
if (!parent.isMapboardActionsEnabled()) {
return;
}
switch (e.getKeyCode()) {
case KeyEvent.VK_ESCAPE:
// main menu
break;
case KeyEvent.VK_NUMPAD1:
case KeyEvent.VK_END:
parent.getGUI().moveTileCursor(Direction.SW);
break;
case KeyEvent.VK_NUMPAD2:
case KeyEvent.VK_KP_DOWN:
case KeyEvent.VK_DOWN:
parent.getGUI().moveTileCursor(Direction.S);
break;
case KeyEvent.VK_NUMPAD3:
case KeyEvent.VK_PAGE_DOWN:
parent.getGUI().moveTileCursor(Direction.SE);
break;
case KeyEvent.VK_NUMPAD4:
case KeyEvent.VK_KP_LEFT:
case KeyEvent.VK_LEFT:
parent.getGUI().moveTileCursor(Direction.W);
break;
case KeyEvent.VK_NUMPAD5:
case KeyEvent.VK_C:
inGameController.centerActiveUnit();
break;
case KeyEvent.VK_NUMPAD6:
case KeyEvent.VK_KP_RIGHT:
case KeyEvent.VK_RIGHT:
parent.getGUI().moveTileCursor(Direction.E);
break;
case KeyEvent.VK_NUMPAD7:
case KeyEvent.VK_HOME:
parent.getGUI().moveTileCursor(Direction.NW);
break;
case KeyEvent.VK_NUMPAD8:
case KeyEvent.VK_KP_UP:
case KeyEvent.VK_UP:
parent.getGUI().moveTileCursor(Direction.N);
break;
case KeyEvent.VK_NUMPAD9:
case KeyEvent.VK_PAGE_UP:
parent.getGUI().moveTileCursor(Direction.NE);
break;
case KeyEvent.VK_SPACE:
TerrainCursor cursor = parent.getGUI().getCursor();
parent.showTilePopup(parent.getGUI().getSelectedTile(), cursor.getCanvasX(), cursor.getCanvasY());
break;
default:
logger.info("The typed key (" + e.getKeyCode() + ") doesn't have a function yet.");
}
}
private void moveUnit(KeyEvent e) {
if (!parent.isMapboardActionsEnabled()) {
return;
}
switch (e.getKeyCode()) {
case KeyEvent.VK_ESCAPE:
// main menu
break;
case KeyEvent.VK_NUMPAD1:
case KeyEvent.VK_END:
inGameController.moveActiveUnit(Direction.SW);
break;
case KeyEvent.VK_NUMPAD2:
case KeyEvent.VK_KP_DOWN:
case KeyEvent.VK_DOWN:
inGameController.moveActiveUnit(Direction.S);
break;
case KeyEvent.VK_NUMPAD3:
case KeyEvent.VK_PAGE_DOWN:
inGameController.moveActiveUnit(Direction.SE);
break;
case KeyEvent.VK_NUMPAD4:
case KeyEvent.VK_KP_LEFT:
case KeyEvent.VK_LEFT:
inGameController.moveActiveUnit(Direction.W);
break;
case KeyEvent.VK_NUMPAD5:
case KeyEvent.VK_C:
inGameController.centerActiveUnit();
break;
case KeyEvent.VK_NUMPAD6:
case KeyEvent.VK_KP_RIGHT:
case KeyEvent.VK_RIGHT:
inGameController.moveActiveUnit(Direction.E);
break;
case KeyEvent.VK_NUMPAD7:
case KeyEvent.VK_HOME:
inGameController.moveActiveUnit(Direction.NW);
break;
case KeyEvent.VK_NUMPAD8:
case KeyEvent.VK_KP_UP:
case KeyEvent.VK_UP:
inGameController.moveActiveUnit(Direction.N);
break;
case KeyEvent.VK_NUMPAD9:
case KeyEvent.VK_PAGE_UP:
inGameController.moveActiveUnit(Direction.NE);
break;
default:
logger.info("The typed key (" + e.getKeyCode() + ") doesn't have a function yet.");
}
}
/**
* Invoked when a key has been released.
*
* @param e The event that holds key-information.
*/
public void keyReleased(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_SHIFT) {
parent.getGUI().setDragPath(null);
}
}
/**
* Invoked when a key has been typed.
*
* @param e The event that holds key-information.
*/
public void keyTyped(KeyEvent e) {
// Ignore for now
}
}
The table below shows all metrics for CanvasKeyListener.java.




