/**
* Pan by a number of pixels (relative pan)
*
* @param dX
* @param dY
* @return True if the pan changed the view (did not move view out of bounds); false otherwise
*/
boolean pan(int dX, int dY) {
// We only pan if the current scaling is able to pan.
if (scaling != null && !scaling.isAbleToPan()) return false;
double scale = getScale();
double sX = (double) dX / scale;
double sY = (double) dY / scale;
if (absoluteXPosition + sX < 0)
// dX = diff to 0
sX = -absoluteXPosition;
if (absoluteYPosition + sY < 0) sY = -absoluteYPosition;
// Prevent panning right or below desktop image
if (absoluteXPosition + getVisibleWidth() + sX > getImageWidth())
sX = getImageWidth() - getVisibleWidth() - absoluteXPosition;
if (absoluteYPosition + getVisibleHeight() + sY > getImageHeight())
sY = getImageHeight() - getVisibleHeight() - absoluteYPosition;
absoluteXPosition += sX;
absoluteYPosition += sY;
if (sX != 0.0 || sY != 0.0) {
// scrollBy((int)sX, (int)sY);
scrollToAbsolute();
return true;
}
return false;
}
/** Make sure mouse is visible on displayable part of screen */
public void panToMouse() {
if (rfbconn == null) return;
boolean panX = true;
boolean panY = true;
// Don't pan in a certain direction if dimension scaled is already less
// than the dimension of the visible part of the screen.
if (rfbconn.framebufferWidth() <= getVisibleWidth()) panX = false;
if (rfbconn.framebufferHeight() <= getVisibleHeight()) panY = false;
// We only pan if the current scaling is able to pan.
if (scaling != null && !scaling.isAbleToPan()) return;
int x = pointer.getX();
int y = pointer.getY();
boolean panned = false;
int w = getVisibleWidth();
int h = getVisibleHeight();
int iw = getImageWidth();
int ih = getImageHeight();
int wthresh = 30;
int hthresh = 30;
int newX = absoluteXPosition;
int newY = absoluteYPosition;
if (x - absoluteXPosition >= w - wthresh) {
newX = x - (w - wthresh);
if (newX + w > iw) newX = iw - w;
} else if (x < absoluteXPosition + wthresh) {
newX = x - wthresh;
if (newX < 0) newX = 0;
}
if (panX && newX != absoluteXPosition) {
absoluteXPosition = newX;
panned = true;
}
if (y - absoluteYPosition >= h - hthresh) {
newY = y - (h - hthresh);
if (newY + h > ih) newY = ih - h;
} else if (y < absoluteYPosition + hthresh) {
newY = y - hthresh;
if (newY < 0) newY = 0;
}
if (panY && newY != absoluteYPosition) {
absoluteYPosition = newY;
panned = true;
}
if (panned) {
// scrollBy(newX - absoluteXPosition, newY - absoluteYPosition);
scrollToAbsolute();
}
}
/* (non-Javadoc)
* @see com.iiordanov.bVNC.AbstractScaling#setScaleTypeForActivity(com.iiordanov.bVNC.VncCanvasActivity)
*/
@Override
void setScaleTypeForActivity(RemoteCanvasActivity activity) {
super.setScaleTypeForActivity(activity);
RemoteCanvas canvas = activity.getCanvas();
canvasXOffset = -canvas.getCenteredXOffset();
canvasYOffset = -canvas.getCenteredYOffset();
canvas.computeShiftFromFullToView();
scaling = 1;
resetMatrix();
matrix.postScale(scaling, scaling);
canvas.setImageMatrix(matrix);
resolveZoom(canvas);
// activity.vncCanvas.pan(0, 0);
activity.zoomer.setIsZoomOutEnabled(false);
activity.zoomer.setIsZoomInEnabled(false);
}
/**
* Set modes on start to match what is specified in the ConnectionBean; color mode (already done)
* scaling, input mode
*/
void setModes() {
AbstractInputHandler handler = getInputHandlerByName(connection.getInputMode());
AbstractScaling.getByScaleType(connection.getScaleMode()).setScaleTypeForActivity(this);
this.inputHandler = handler;
showPanningState(false);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
canvas.getKeyboard().setAfterMenu(true);
switch (item.getItemId()) {
case R.id.itemInfo:
canvas.showConnectionInfo();
return true;
case R.id.itemSpecialKeys:
showDialog(R.layout.metakey);
return true;
case R.id.itemColorMode:
selectColorModel();
return true;
// Following sets one of the scaling options
case R.id.itemZoomable:
case R.id.itemOneToOne:
case R.id.itemFitToScreen:
AbstractScaling.getById(item.getItemId()).setScaleTypeForActivity(this);
item.setChecked(true);
showPanningState(false);
return true;
case R.id.itemCenterMouse:
canvas
.getPointer()
.warpMouse(
canvas.absoluteXPosition + canvas.getVisibleWidth() / 2,
canvas.absoluteYPosition + canvas.getVisibleHeight() / 2);
return true;
case R.id.itemDisconnect:
canvas.closeConnection();
finish();
return true;
case R.id.itemEnterText:
showDialog(R.layout.entertext);
return true;
case R.id.itemCtrlAltDel:
canvas.getKeyboard().sendMetaKey(MetaKeyBean.keyCtrlAltDel);
return true;
/* case R.id.itemFollowMouse:
boolean newFollow = !connection.getFollowMouse();
item.setChecked(newFollow);
connection.setFollowMouse(newFollow);
if (newFollow) {
vncCanvas.panToMouse();
}
connection.save(database.getWritableDatabase());
database.close();
return true;
case R.id.itemFollowPan:
boolean newFollowPan = !connection.getFollowPan();
item.setChecked(newFollowPan);
connection.setFollowPan(newFollowPan);
connection.save(database.getWritableDatabase());
database.close();
return true;
case R.id.itemArrowLeft:
vncCanvas.sendMetaKey(MetaKeyBean.keyArrowLeft);
return true;
case R.id.itemArrowUp:
vncCanvas.sendMetaKey(MetaKeyBean.keyArrowUp);
return true;
case R.id.itemArrowRight:
vncCanvas.sendMetaKey(MetaKeyBean.keyArrowRight);
return true;
case R.id.itemArrowDown:
vncCanvas.sendMetaKey(MetaKeyBean.keyArrowDown);
return true;
*/
case R.id.itemSendKeyAgain:
sendSpecialKeyAgain();
return true;
// Disabling Manual/Wiki Menu item as the original does not correspond to this project
// anymore.
// case R.id.itemOpenDoc:
// Utils.showDocumentation(this);
// return true;
case R.id.itemExtraKeys:
if (connection.getExtraKeysToggleType() == Constants.EXTRA_KEYS_ON) {
connection.setExtraKeysToggleType(Constants.EXTRA_KEYS_OFF);
item.setTitle(R.string.extra_keys_enable);
setExtraKeysVisibility(View.GONE, false);
} else {
connection.setExtraKeysToggleType(Constants.EXTRA_KEYS_ON);
item.setTitle(R.string.extra_keys_disable);
setExtraKeysVisibility(View.VISIBLE, false);
extraKeysHidden = false;
}
setKeyStowDrawableAndVisibility();
connection.save(database.getWritableDatabase());
database.close();
return true;
case R.id.itemHelpInputMode:
showDialog(R.id.itemHelpInputMode);
return true;
default:
AbstractInputHandler input = getInputHandlerById(item.getItemId());
if (input != null) {
inputHandler = input;
connection.setInputMode(input.getName());
if (input.getName().equals(SimulatedTouchpadInputHandler.TOUCHPAD_MODE)) {
connection.setFollowMouse(true);
connection.setFollowPan(true);
} else {
connection.setFollowMouse(false);
connection.setFollowPan(false);
}
item.setChecked(true);
showPanningState(true);
connection.save(database.getWritableDatabase());
database.close();
return true;
}
}
return super.onOptionsItemSelected(item);
}
float getScale() {
if (scaling == null) return 1;
return scaling.getScale();
}
