Пример #1
0
 /**
  * Gets a full copy of the display information.
  *
  * @param outDisplayInfo The object to receive the copy of the display information.
  * @return True if the display is still valid.
  * @hide
  */
 public boolean getDisplayInfo(DisplayInfo outDisplayInfo) {
   synchronized (this) {
     updateDisplayInfoLocked();
     outDisplayInfo.copyFrom(mDisplayInfo);
     return mIsValid;
   }
 }
 /**
  * Overrides the display information of a particular logical display. This is used by the window
  * manager to control the size and characteristics of the default display. It is expected to apply
  * the requested change to the display information synchronously so that applications will
  * immediately observe the new state.
  *
  * @param displayId The logical display id.
  * @param info The new data to be stored.
  */
 public void setDisplayInfoOverrideFromWindowManager(int displayId, DisplayInfo info) {
   synchronized (mSyncRoot) {
     LogicalDisplay display = mLogicalDisplays.get(displayId);
     if (display != null) {
       mTempDisplayInfo.copyFrom(display.getDisplayInfoLocked());
       display.setDisplayInfoOverrideFromWindowManagerLocked(info);
       if (!mTempDisplayInfo.equals(display.getDisplayInfoLocked())) {
         sendDisplayEventLocked(displayId, DisplayManagerGlobal.EVENT_DISPLAY_CHANGED);
         scheduleTraversalLocked(false);
       }
     }
   }
 }
  // Updates all existing logical displays given the current set of display devices.
  // Removes invalid logical displays.
  // Sends notifications if needed.
  private boolean updateLogicalDisplaysLocked() {
    boolean changed = false;
    for (int i = mLogicalDisplays.size(); i-- > 0; ) {
      final int displayId = mLogicalDisplays.keyAt(i);
      LogicalDisplay display = mLogicalDisplays.valueAt(i);

      mTempDisplayInfo.copyFrom(display.getDisplayInfoLocked());
      display.updateLocked(mDisplayDevices);
      if (!display.isValidLocked()) {
        mLogicalDisplays.removeAt(i);
        sendDisplayEventLocked(displayId, DisplayManagerGlobal.EVENT_DISPLAY_REMOVED);
        changed = true;
      } else if (!mTempDisplayInfo.equals(display.getDisplayInfoLocked())) {
        sendDisplayEventLocked(displayId, DisplayManagerGlobal.EVENT_DISPLAY_CHANGED);
        changed = true;
      }
    }
    return changed;
  }
 public DisplayInfo(DisplayInfo other) {
   copyFrom(other);
 }