javafx.scene.input.KeyEvent.isAltDown()方法的使用及代码示例

x33g5p2x  于2022-01-23 转载在 其他  
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本文整理了Java中javafx.scene.input.KeyEvent.isAltDown()方法的一些代码示例，展示了KeyEvent.isAltDown()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。KeyEvent.isAltDown()方法的具体详情如下：
包路径：javafx.scene.input.KeyEvent
类名称：KeyEvent
方法名：isAltDown

KeyEvent.isAltDown介绍

暂无

代码示例

代码示例来源：origin: eu.mihosoft.vrl.jcsg/jcsg

private boolean isModifierCorrect(KeyEvent t, KeyCode keyCode) {
  return (keyCode != KeyCode.ALT ^ t.isAltDown()) 
      && (keyCode != KeyCode.CONTROL ^ t.isControlDown()) 
      && (keyCode != KeyCode.SHIFT ^ t.isShiftDown()) 
      && (keyCode != KeyCode.META ^ t.isMetaDown());
}

代码示例来源：origin: at.bestsolution.efxclipse.rt/org.eclipse.fx.ui.workbench.fx

private static boolean hasModifierPressed(KeyEvent event) {
  return event.isAltDown() || event.isControlDown() || event.isMetaDown() || event.isShiftDown();
}

代码示例来源：origin: at.bestsolution.eclipse/org.eclipse.fx.text.ui

if (event.isControlDown() || event.isAltDown() || (Util.isMacOS() && event.isMetaDown())) {
  if (!((event.isControlDown() || Util.isMacOS()) && event.isAltDown())) {
    return;

代码示例来源：origin: at.bestsolution.efxclipse.rt/org.eclipse.fx.ui.workbench.fx

private static int getStateMask(KeyEvent event) {
  int rv = 0;
  if (event.isAltDown()) {
    rv |= FxKeyLookup.ALT;
  }
  if (event.isControlDown()) {
    rv |= FxKeyLookup.CTRL;
  }
  if (event.isShiftDown()) {
    rv |= FxKeyLookup.SHIFT;
  }
  if (event.isMetaDown()) {
    rv |= FxKeyLookup.COMMAND;
  }
  return rv;
}

代码示例来源：origin: at.bestsolution.eclipse/org.eclipse.fx.ui.controls

private void _keyTyped(KeyEvent event) {
  if (getControl().getEditable()) {
    String character = event.getCharacter();
    if (character.length() == 0) {
      return;
    }
    // check the modifiers
    // - OS-X: ALT+L ==> @
    // - win32/linux: ALTGR+Q ==> @
    if (event.isControlDown() || event.isAltDown() || (Util.isMacOS() && event.isMetaDown())) {
      if (!((event.isControlDown() || Util.isMacOS()) && event.isAltDown()))
        return;
    }
    if (character.charAt(0) > 31 // No ascii control chars
        && character.charAt(0) != 127 // no delete key
        && !event.isMetaDown()) {
      final int offset = getControl().getCaretOffset();
      getControl().getContent().replaceTextRange(getControl().getCaretOffset(), 0, character);
      getControl().setCaretOffset(offset + 1);
    }
  }
}

代码示例来源：origin: at.bestsolution.efxclipse.rt/org.eclipse.fx.ui.controls

private void onKeyTyped(KeyEvent event) {
  if (getControl().getEditable()) {
    String character = event.getCharacter();
    if (character.length() == 0) {
      return;
    }
    // check the modifiers
    // - OS-X: ALT+L ==> @
    // - win32/linux: ALTGR+Q ==> @
    if (event.isControlDown() || event.isAltDown() || (Util.isMacOS() && event.isMetaDown())) {
      if (!((event.isControlDown() || Util.isMacOS()) && event.isAltDown()))
        return;
    }
    if (character.charAt(0) > 31 // No ascii control chars
        && character.charAt(0) != 127 // no delete key
        && !event.isMetaDown()) {
      getControl().insert(character);
      // check for typed char action
      if( this.keyTriggerMapping.exists(character.charAt(0)) ) {
        getControl().fireEvent(UndoHintEvent.createBeginCompoundChangeEvent());
        try {
          this.keyTriggerMapping.triggerAction(character.charAt(0), new Context(getControl()));
        }
        finally {
          getControl().fireEvent(UndoHintEvent.createEndCompoundChangeEvent());
        }
      }
    }
  }
}

代码示例来源：origin: org.tentackle/tentackle-fx

@Override
@SuppressWarnings({ "unchecked", "rawtypes" })
public void setType(Class<?> type) {
 super.setType(type);
 // choice box does not need a value translator because the items are already of model type
 // and choice-box is not editable
 // deselect by DELETE- or BACKSPACE-key (with or without shift)
 component.addEventFilter(KeyEvent.KEY_PRESSED, event -> {
  if (!event.isAltDown() && !event.isControlDown() && !event.isMetaDown() && !event.isShortcutDown() &&
    (event.getCode() == KeyCode.DELETE || event.getCode() == KeyCode.BACK_SPACE) &&
    !component.isDisabled() && isDeselectAllowed()) {
   
   event.consume();
   component.getSelectionModel().clearSelection();
  }
 });
 if (type.isEnum()) {
  ObservableList items = component.getItems();
  items.clear();
  items.addAll(Arrays.asList(type.getEnumConstants()));
 }
}

代码示例来源：origin: org.tentackle/tentackle-fx

@Override
protected void remapKeys(T control) {
 control.addEventFilter(KeyEvent.ANY, (KeyEvent event) -> {
  if (event.getCode() == KeyCode.ENTER &&
    !event.isControlDown() && !event.isAltDown() && !event.isMetaDown() &&
    event.getEventType() == KeyEvent.KEY_PRESSED) {
   if (event.isShiftDown()) {
    focusPrevious(control);
   }
   else {
    focusNext(control);
   }
  }
 });
}

代码示例来源：origin: org.processing/core

protected void fxKeyEvent(javafx.scene.input.KeyEvent fxEvent) {
 int action = 0;
 EventType<? extends KeyEvent> et = fxEvent.getEventType();
 if (et == KeyEvent.KEY_PRESSED) {
  action = processing.event.KeyEvent.PRESS;
 } else if (et == KeyEvent.KEY_RELEASED) {
  action = processing.event.KeyEvent.RELEASE;
 } else if (et == KeyEvent.KEY_TYPED) {
  action = processing.event.KeyEvent.TYPE;
 }
 int modifiers = 0;
 if (fxEvent.isShiftDown()) {
  modifiers |= processing.event.Event.SHIFT;
 }
 if (fxEvent.isControlDown()) {
  modifiers |= processing.event.Event.CTRL;
 }
 if (fxEvent.isMetaDown()) {
  modifiers |= processing.event.Event.META;
 }
 if (fxEvent.isAltDown()) {
  modifiers |= processing.event.Event.ALT;
 }
 long when = System.currentTimeMillis();
 char keyChar = getKeyChar(fxEvent);
 int keyCode = getKeyCode(fxEvent);
 sketch.postEvent(new processing.event.KeyEvent(fxEvent, when,
                         action, modifiers,
                         keyChar, keyCode));
}

代码示例来源：origin: at.bestsolution.efxclipse.rt/org.eclipse.fx.ui.controls

/**
 * The event
 *
 * @param source
 *            the source
 * @param target
 *            the target
 * @param event
 *            the key
 */
public VerifyEvent(Object source, EventTarget target, KeyEvent event) {
  super(source, target, VERIFY);
  boolean isKeyTyped = event.getEventType() == KeyEvent.KEY_TYPED;
  this.character = isKeyTyped ? event.getCharacter() : KeyEvent.CHAR_UNDEFINED;
  this.text = isKeyTyped ? "" : event.getText(); //$NON-NLS-1$
  this.code = isKeyTyped ? KeyCode.UNDEFINED : event.getCode();
  this.shiftDown = event.isShiftDown();
  this.controlDown = event.isControlDown();
  this.altDown = event.isAltDown();
  this.metaDown = event.isMetaDown();
}

代码示例来源：origin: at.bestsolution.eclipse/org.eclipse.fx.ui.controls

/**
 * The event
 * 
 * @param source
 *            the source
 * @param target
 *            the target
 * @param event
 *            the key
 */
public VerifyEvent(Object source, EventTarget target, KeyEvent event) {
  super(source, target, VERIFY);
  boolean isKeyTyped = event.getEventType() == KeyEvent.KEY_TYPED;
  this.character = isKeyTyped ? event.getCharacter() : KeyEvent.CHAR_UNDEFINED;
  this.text = isKeyTyped ? "" : event.getText(); //$NON-NLS-1$
  this.code = isKeyTyped ? KeyCode.UNDEFINED : event.getCode();
  this.shiftDown = event.isShiftDown();
  this.controlDown = event.isControlDown();
  this.altDown = event.isAltDown();
  this.metaDown = event.isMetaDown();
}

代码示例来源：origin: org.tentackle/tentackle-fx

@Override
@SuppressWarnings("unchecked")
public void setType(Class<?> type) {
 // important to set the type before creating the translator,
 // since the translator may need to know the type
 super.setType(type);
 // deselect by DELETE- or BACKSPACE-key (with or without shift)
 component.addEventFilter(KeyEvent.KEY_PRESSED, event -> {
  if (!event.isAltDown() && !event.isControlDown() && !event.isMetaDown() && !event.isShortcutDown() &&
    (event.getCode() == KeyCode.DELETE || event.getCode() == KeyCode.BACK_SPACE) &&
    !component.isEditable() && !component.isDisabled() && isDeselectAllowed()) {
   
   event.consume();
   component.getSelectionModel().clearSelection();
  }
 });
 if (type.isEnum()) {
  ObservableList items = component.getItems();
  items.clear();
  items.addAll(Arrays.asList(type.getEnumConstants()));
 }
}

代码示例来源：origin: org.tentackle/tentackle-fx

/**
 * Filters certain keys for special features.
 *
 * @param control the fx control
 */
public void filterKeys(Control control) {
 if (control instanceof FxComponent) {
  control.addEventFilter(KeyEvent.ANY, event -> {
   if (event.getCode() == KeyCode.Z && event.isControlDown() &&
     !event.isAltDown() && !event.isMetaDown() && !event.isShiftDown()) {
    FxComponent comp = (FxComponent) control;
    if (comp.isViewModified()) {
     if (event.getEventType() == KeyEvent.KEY_PRESSED) {
      // Ctrl-Z pressed and old view value saved: restore it!
      comp.setViewObject(comp.getSavedViewObject());
     }
     event.consume();
    }
   }
  });
 }
}

代码示例来源：origin: org.tentackle/tentackle-fx

@Override
public void configure(T control) {
 super.configure(control);
 // first keystroke triggers check for modification
 control.textProperty().addListener(o -> ((FxComponent) control).triggerViewModified());
 // Shift-Backspace clears the field
 control.addEventFilter(KeyEvent.ANY, (KeyEvent event) -> {
  if (event.getCode() == KeyCode.BACK_SPACE && event.isShiftDown() &&
    !event.isControlDown() && !event.isAltDown() && !event.isMetaDown()) {
   if (event.getEventType() == KeyEvent.KEY_PRESSED &&
     !control.isDisabled() && control.isEditable()) {
    control.clear();
   }
   event.consume();
  }
 });
}

代码示例来源：origin: org.tentackle/tentackle-fx

@Override
protected void remapKeys(T control) {
 control.addEventFilter(KeyEvent.ANY, (KeyEvent event) -> {
  if ((event.getCode() == KeyCode.TAB || event.getCode() == KeyCode.ENTER) &&
    !event.isAltDown() && !event.isMetaDown()) {
   if (event.getEventType() == KeyEvent.KEY_PRESSED) {
    if (event.isControlDown()) {
     control.insertText(control.getCaretPosition(), event.getCode() == KeyCode.TAB ? "\t" : "\n");
    }
    else {
     if (event.isShiftDown()) {
      focusPrevious(control);
     }
     else {
      focusNext(control);
     }
    }
   }
   event.consume();
  }
 });
}

代码示例来源：origin: com.github.wshackle/poseList3DPlot

private void handleKeyEvent(javafx.scene.input.KeyEvent event) {
  if (event.isAltDown()) {
    double r = event.isShiftDown() ? 1 : -1;
    switch (event.getCode()) {
      case X:
        composeRotation(r, Vector3D.PLUS_I, rxy);
        break;
      case Y:
        composeRotation(r, Vector3D.PLUS_J, rxy);
        break;
      case Z:
        rz.setAngle(rz.getAngle() + r);
        break;
    }
  } else {
    double tinc = event.isShiftDown() ? 10 : -10;
    switch (event.getCode()) {
      case X:
        t.setX(t.getX() + tinc);
        break;
      case Y:
        t.setY(t.getY() + tinc);
        break;
      case Z:
        t.setZ(t.getZ() + tinc);
        break;
    }
  }
}

代码示例来源：origin: org.tentackle/tentackle-fx

@Override
public void configure(T control) {
 super.configure(control);
 // first keystroke triggers check for modification
 control.getEditor().textProperty().addListener(o -> ((FxComponent) control).triggerViewModified());
 // Shift-Backspace clears the field
 control.addEventFilter(KeyEvent.ANY, (KeyEvent event) -> {
  if (event.getCode() == KeyCode.BACK_SPACE && event.isShiftDown() &&
    !event.isControlDown() && !event.isAltDown() && !event.isMetaDown()) {
   if (event.getEventType() == KeyEvent.KEY_PRESSED &&
     !control.getEditor().isDisabled() && control.getEditor().isEditable()) {
    control.getEditor().clear();
   }
   event.consume();
  }
 });
}

代码示例来源：origin: at.bestsolution.efxclipse.rt/org.eclipse.fx.ui.controls

if (event.getCode() == KeyCode.ALT || event.isAltDown()) {
  event.consume();
if( event.isAltDown() && event.isControlDown() ) {
  event.consume();

代码示例来源：origin: at.bestsolution.eclipse/org.eclipse.fx.ui.controls

if (event.getCode() == KeyCode.ALT || event.isAltDown()) {
    event.consume();
  break;
case LEFT: {
  if (event.isAltDown()) {
    invokeAction(ActionType.WORD_PREVIOUS);
  } else {
  if (event.isAltDown()) {
    invokeAction(ActionType.WORD_NEXT);
  } else if (event.isMetaDown()) {

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