com.sun.glass.ui.monocle.MouseState Maven / Gradle / Ivy
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* accompanied this code).
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package com.sun.glass.ui.monocle;
import com.sun.glass.events.KeyEvent;
import com.sun.glass.events.MouseEvent;
/**
* MouseState is a snapshot of mouse coordinates and which buttons are pressed.
* MouseState is used both to store the current state of mouse input and to
* describe changes to that state.
*/
class MouseState {
static final int WHEEL_NONE = 0;
static final int WHEEL_UP = 1;
static final int WHEEL_DOWN = -1 ;
private int x;
private int y;
private int wheel;
private MonocleWindow window;
private IntSet buttonsPressed = new IntSet();
int getX() {
return x;
}
void setX(int x) {
this.x = x;
}
int getY() {
return y;
}
void setY(int y) {
this.y = y;
}
int getWheel() {
return wheel;
}
void setWheel(int wheel) {
this.wheel = wheel;
}
void pressButton(int button) {
buttonsPressed.addInt(button);
}
void releaseButton(int button) {
buttonsPressed.removeInt(button);
}
/**
* Returns the Glass window on which the coordinates of this state are located.
* @param recalculateCache true if the cached value for the target window
* should be recalculated; false if the cached
* value should be used to determine the result
* of this method.
* @param fallback if the original window is null, or if no window can
* be found, return the fallback window
* @return the MonocleWindow at the top of the stack at the coordinates
* described by this state object, or the fallback window in case the
* current window is null or no window can be found for the supplied coordinates.
*/
MonocleWindow getWindow(boolean recalculateCache, MonocleWindow fallback) {
if (recalculateCache) {
window = MonocleWindowManager.getInstance().getWindowForLocation(x, y);
}
if (window == null) {
window = fallback;
}
return window;
}
/** Returns the Glass button ID used for this state. */
int getButton() {
return buttonsPressed.isEmpty()
? MouseEvent.BUTTON_NONE
: buttonsPressed.get(0);
}
/** Returns the Glass event modifiers for this state */
int getModifiers() {
int modifiers = KeyEvent.MODIFIER_NONE;
for (int i = 0; i < buttonsPressed.size(); i++) {
switch(buttonsPressed.get(i)) {
case MouseEvent.BUTTON_LEFT:
modifiers |= KeyEvent.MODIFIER_BUTTON_PRIMARY;
break;
case MouseEvent.BUTTON_OTHER:
modifiers |= KeyEvent.MODIFIER_BUTTON_MIDDLE;
break;
case MouseEvent.BUTTON_RIGHT:
modifiers |= KeyEvent.MODIFIER_BUTTON_SECONDARY;
break;
case MouseEvent.BUTTON_BACK:
modifiers |= KeyEvent.MODIFIER_BUTTON_BACK;
break;
case MouseEvent.BUTTON_FORWARD:
modifiers |= KeyEvent.MODIFIER_BUTTON_FORWARD;
break;
}
}
return modifiers;
}
/** Copies the contents of this state object to another.
*
* @param target The MouseState to which to copy this state's data.
*/
void copyTo(MouseState target) {
target.x = x;
target.y = y;
target.wheel = wheel;
buttonsPressed.copyTo(target.buttonsPressed);
target.window = window;
}
IntSet getButtonsPressed() {
return buttonsPressed;
}
@Override
public String toString() {
return "MouseState[x="
+ x + ",y=" + y
+ ",wheel=" + wheel
+ ",buttonsPressed=" + buttonsPressed + "]";
}
/** Finds out whether two non-null states are identical in everything but
* their coordinates
*
* @param ms the MouseState to compare to
*/
boolean canBeFoldedWith(MouseState ms) {
return ms.buttonsPressed.equals(buttonsPressed) && ms.wheel == wheel;
}
}