public void updateSecurityWarningVisibility() {
if (warningWindow == null) {
return;
}
if (!isVisible()) {
return; // The warning window should already be hidden.
}
boolean show = false;
if (!platformWindow.isFullScreenMode()) {
if (isVisible()) {
if (LWKeyboardFocusManagerPeer.getInstance().getCurrentFocusedWindow() == getTarget()) {
show = true;
}
if (platformWindow.isUnderMouse() || warningWindow.isUnderMouse()) {
show = true;
}
}
}
warningWindow.setVisible(show, true);
}
/*
* Requests platform to set native focus on a frame/dialog.
* In case of a simple window, triggers appropriate java focus change.
*/
public boolean requestWindowFocus(CausedFocusEvent.Cause cause) {
if (focusLog.isLoggable(PlatformLogger.FINE)) {
focusLog.fine("requesting native focus to " + this);
}
if (!focusAllowedFor()) {
focusLog.fine("focus is not allowed");
return false;
}
if (platformWindow.rejectFocusRequest(cause)) {
return false;
}
Window currentActive = KeyboardFocusManager.getCurrentKeyboardFocusManager().getActiveWindow();
Window opposite = LWKeyboardFocusManagerPeer.getInstance().getCurrentFocusedWindow();
// Make the owner active window.
if (isSimpleWindow()) {
LWWindowPeer owner = getOwnerFrameDialog(this);
// If owner is not natively active, request native
// activation on it w/o sending events up to java.
if (owner != null && !owner.platformWindow.isActive()) {
if (focusLog.isLoggable(PlatformLogger.FINE)) {
focusLog.fine("requesting native focus to the owner " + owner);
}
LWWindowPeer currentActivePeer =
(currentActive != null ? (LWWindowPeer) currentActive.getPeer() : null);
// Ensure the opposite is natively active and suppress sending events.
if (currentActivePeer != null && currentActivePeer.platformWindow.isActive()) {
if (focusLog.isLoggable(PlatformLogger.FINE)) {
focusLog.fine("the opposite is " + currentActivePeer);
}
currentActivePeer.skipNextFocusChange = true;
}
owner.skipNextFocusChange = true;
owner.platformWindow.requestWindowFocus();
}
// DKFM will synthesize all the focus/activation events correctly.
changeFocusedWindow(true, opposite);
return true;
// In case the toplevel is active but not focused, change focus directly,
// as requesting native focus on it will not have effect.
} else if (getTarget() == currentActive && !getTarget().hasFocus()) {
changeFocusedWindow(true, opposite);
return true;
}
return platformWindow.requestWindowFocus();
}
private void replaceSurfaceData(
int newBackBufferCount, BufferCapabilities newBackBufferCaps, boolean blit) {
synchronized (surfaceDataLock) {
final SurfaceData oldData = getSurfaceData();
surfaceData = platformWindow.replaceSurfaceData();
// TODO: volatile image
// VolatileImage oldBB = backBuffer;
BufferedImage oldBB = backBuffer;
backBufferCount = newBackBufferCount;
backBufferCaps = newBackBufferCaps;
final Rectangle size = getSize();
if (getSurfaceData() != null && oldData != getSurfaceData()) {
clearBackground(size.width, size.height);
}
if (blit) {
blitSurfaceData(oldData, getSurfaceData());
}
if (oldData != null && oldData != getSurfaceData()) {
// TODO: drop oldData for D3D/WGL pipelines
// This can only happen when this peer is being created
oldData.flush();
}
// TODO: volatile image
// backBuffer = (VolatileImage)delegate.createBackBuffer();
backBuffer = (BufferedImage) platformWindow.createBackBuffer();
if (backBuffer != null) {
Graphics g = backBuffer.getGraphics();
try {
Rectangle r = getBounds();
if (g instanceof Graphics2D) {
((Graphics2D) g).setComposite(AlphaComposite.Src);
}
g.setColor(nonOpaqueBackground);
g.fillRect(0, 0, r.width, r.height);
if (g instanceof SunGraphics2D) {
((SunGraphics2D) g).constrain(0, 0, r.width, r.height, getRegion());
}
if (!isTextured()) {
g.setColor(getBackground());
g.fillRect(0, 0, r.width, r.height);
}
if (oldBB != null) {
// Draw the old back buffer to the new one
g.drawImage(oldBB, 0, 0, null);
oldBB.flush();
}
} finally {
g.dispose();
}
}
}
flushOnscreenGraphics();
}
@Override
public void updateMinimumSize() {
final Dimension min;
if (getTarget().isMinimumSizeSet()) {
min = getTarget().getMinimumSize();
min.width = Math.max(min.width, MINIMUM_WIDTH);
min.height = Math.max(min.height, MINIMUM_HEIGHT);
} else {
min = new Dimension(MINIMUM_WIDTH, MINIMUM_HEIGHT);
}
final int maxW, maxH;
if (graphicsConfig instanceof TextureSizeConstraining) {
maxW = ((TextureSizeConstraining) graphicsConfig).getMaxTextureWidth();
maxH = ((TextureSizeConstraining) graphicsConfig).getMaxTextureHeight();
} else {
maxW = maxH = Integer.MAX_VALUE;
}
final Dimension max;
if (getTarget().isMaximumSizeSet()) {
max = getTarget().getMaximumSize();
max.width = Math.min(max.width, maxW);
max.height = Math.min(max.height, maxH);
} else {
max = new Dimension(maxW, maxH);
}
platformWindow.setSizeConstraints(min.width, min.height, max.width, max.height);
}
@Override
public void setBounds(int x, int y, int w, int h, int op) {
if ((op & NO_EMBEDDED_CHECK) == 0 && getPeerType() == PeerType.VIEW_EMBEDDED_FRAME) {
return;
}
if ((op & SET_CLIENT_SIZE) != 0) {
// SET_CLIENT_SIZE is only applicable to window peers, so handle it here
// instead of pulling 'insets' field up to LWComponentPeer
// no need to add insets since Window's notion of width and height includes insets.
op &= ~SET_CLIENT_SIZE;
op |= SET_SIZE;
}
// Don't post ComponentMoved/Resized and Paint events
// until we've got a notification from the delegate
Rectangle cb = constrainBounds(x, y, w, h);
Rectangle newBounds = new Rectangle(getBounds());
if ((op & (SET_LOCATION | SET_BOUNDS)) != 0) {
newBounds.x = cb.x;
newBounds.y = cb.y;
}
if ((op & (SET_SIZE | SET_BOUNDS)) != 0) {
newBounds.width = cb.width;
newBounds.height = cb.height;
}
// Native system could constraint bounds, so the peer wold be updated in the callback
platformWindow.setBounds(newBounds.x, newBounds.y, newBounds.width, newBounds.height);
}
/**
* Called by the {@code PlatformWindow} when this window is moved/resized by user or window insets
* are changed. There's no notifyReshape() in LWComponentPeer as the only components which could
* be resized by user are top-level windows.
*/
@Override
public void notifyReshape(int x, int y, int w, int h) {
Rectangle oldBounds = getBounds();
final boolean invalid = updateInsets(platformWindow.getInsets());
final boolean moved = (x != oldBounds.x) || (y != oldBounds.y);
final boolean resized = (w != oldBounds.width) || (h != oldBounds.height);
// Check if anything changed
if (!moved && !resized && !invalid) {
return;
}
// First, update peer's bounds
setBounds(x, y, w, h, SET_BOUNDS, false, false);
// Second, update the graphics config and surface data
final boolean isNewDevice = updateGraphicsDevice();
if (resized || isNewDevice) {
replaceSurfaceData();
updateMinimumSize();
}
// Third, COMPONENT_MOVED/COMPONENT_RESIZED/PAINT events
if (moved || invalid) {
handleMove(x, y, true);
}
if (resized || invalid || isNewDevice) {
handleResize(w, h, true);
repaintPeer();
}
repositionSecurityWarning();
}
@Override
void initializeImpl() {
super.initializeImpl();
if (getTarget() instanceof Frame) {
setTitle(((Frame) getTarget()).getTitle());
setState(((Frame) getTarget()).getExtendedState());
} else if (getTarget() instanceof Dialog) {
setTitle(((Dialog) getTarget()).getTitle());
}
updateAlwaysOnTopState();
updateMinimumSize();
updateFocusableWindowState();
final Shape shape = getTarget().getShape();
if (shape != null) {
applyShape(Region.getInstance(shape, null));
}
final float opacity = getTarget().getOpacity();
if (opacity < 1.0f) {
setOpacity(opacity);
}
setOpaque(getTarget().isOpaque());
updateInsets(platformWindow.getInsets());
if (getSurfaceData() == null) {
replaceSurfaceData(false);
}
activateDisplayListener();
}
@Override
protected void setVisibleImpl(final boolean visible) {
if (!visible && warningWindow != null) {
warningWindow.setVisible(false, false);
}
updateFocusableWindowState();
super.setVisibleImpl(visible);
// TODO: update graphicsConfig, see 4868278
platformWindow.setVisible(visible);
if (isSimpleWindow()) {
KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
if (visible) {
if (!getTarget().isAutoRequestFocus()) {
return;
} else {
requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
}
// Focus the owner in case this window is focused.
} else if (kfmPeer.getCurrentFocusedWindow() == getTarget()) {
// Transfer focus to the owner.
LWWindowPeer owner = getOwnerFrameDialog(LWWindowPeer.this);
if (owner != null) {
owner.requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
}
}
}
}
public LWWindowPeer(
Window target,
PlatformComponent platformComponent,
PlatformWindow platformWindow,
PeerType peerType) {
super(target, platformComponent);
this.platformWindow = platformWindow;
this.peerType = peerType;
Window owner = target.getOwner();
LWWindowPeer ownerPeer =
owner == null ? null : (LWWindowPeer) AWTAccessor.getComponentAccessor().getPeer(owner);
PlatformWindow ownerDelegate = (ownerPeer != null) ? ownerPeer.getPlatformWindow() : null;
// The delegate.initialize() needs a non-null GC on X11.
GraphicsConfiguration gc = getTarget().getGraphicsConfiguration();
synchronized (getStateLock()) {
// graphicsConfig should be updated according to the real window
// bounds when the window is shown, see 4868278
this.graphicsConfig = gc;
}
if (!target.isFontSet()) {
target.setFont(DEFAULT_FONT);
}
if (!target.isBackgroundSet()) {
target.setBackground(SystemColor.window);
} else {
// first we check if user provided alpha for background. This is
// similar to what Apple's Java do.
// Since JDK7 we should rely on setOpacity() only.
// this.opacity = c.getAlpha();
}
if (!target.isForegroundSet()) {
target.setForeground(SystemColor.windowText);
// we should not call setForeground because it will call a repaint
// which the peer may not be ready to do yet.
}
platformWindow.initialize(target, this, ownerDelegate);
// Init warning window(for applets)
SecurityWarningWindow warn = null;
if (target.getWarningString() != null) {
// accessSystemTray permission allows to display TrayIcon, TrayIcon tooltip
// and TrayIcon balloon windows without a warning window.
if (!AWTAccessor.getWindowAccessor().isTrayIconWindow(target)) {
LWToolkit toolkit = (LWToolkit) Toolkit.getDefaultToolkit();
warn = toolkit.createSecurityWarning(target, this);
}
}
warningWindow = warn;
}
@Override
public void setModalBlocked(Dialog blocker, boolean blocked) {
synchronized (getPeerTreeLock()) {
if (blocked && blocker.getPeer() instanceof LWWindowPeer) {
this.blocker = (LWWindowPeer) blocker.getPeer();
} else {
this.blocker = null;
}
}
platformWindow.setModalBlocked(blocked);
}
@Override
public void setModalBlocked(Dialog blocker, boolean blocked) {
synchronized (getPeerTreeLock()) {
ComponentPeer peer = AWTAccessor.getComponentAccessor().getPeer(blocker);
if (blocked && (peer instanceof LWWindowPeer)) {
this.blocker = (LWWindowPeer) peer;
} else {
this.blocker = null;
}
}
platformWindow.setModalBlocked(blocked);
}
protected final Graphics getOnscreenGraphics(Color fg, Color bg, Font f) {
if (getSurfaceData() == null) {
return null;
}
if (fg == null) {
fg = SystemColor.windowText;
}
if (bg == null) {
bg = SystemColor.window;
}
if (f == null) {
f = DEFAULT_FONT;
}
return platformWindow.transformGraphics(new SunGraphics2D(getSurfaceData(), fg, bg, f));
}
@Override
protected void disposeImpl() {
deactivateDisplayListener();
SurfaceData oldData = getSurfaceData();
synchronized (surfaceDataLock) {
surfaceData = null;
}
if (oldData != null) {
oldData.invalidate();
}
if (isGrabbing()) {
ungrab();
}
if (warningWindow != null) {
warningWindow.dispose();
}
platformWindow.dispose();
super.disposeImpl();
}
@Override
public void setBounds(int x, int y, int w, int h, int op) {
if ((op & NO_EMBEDDED_CHECK) == 0 && getPeerType() == PeerType.VIEW_EMBEDDED_FRAME) {
return;
}
if ((op & SET_CLIENT_SIZE) != 0) {
// SET_CLIENT_SIZE is only applicable to window peers, so handle it here
// instead of pulling 'insets' field up to LWComponentPeer
// no need to add insets since Window's notion of width and height includes insets.
op &= ~SET_CLIENT_SIZE;
op |= SET_SIZE;
}
if (w < MINIMUM_WIDTH) {
w = MINIMUM_WIDTH;
}
if (h < MINIMUM_HEIGHT) {
h = MINIMUM_HEIGHT;
}
if (graphicsConfig instanceof TextureSizeConstraining) {
final int maxW = ((TextureSizeConstraining) graphicsConfig).getMaxTextureWidth();
final int maxH = ((TextureSizeConstraining) graphicsConfig).getMaxTextureHeight();
if (w > maxW) {
w = maxW;
}
if (h > maxH) {
h = maxH;
}
}
// Don't post ComponentMoved/Resized and Paint events
// until we've got a notification from the delegate
setBounds(x, y, w, h, op, false, false);
// Get updated bounds, so we don't have to handle 'op' here manually
Rectangle r = getBounds();
platformWindow.setBounds(r.x, r.y, r.width, r.height);
}
private void replaceSurfaceData(final boolean blit) {
synchronized (surfaceDataLock) {
final SurfaceData oldData = getSurfaceData();
surfaceData = platformWindow.replaceSurfaceData();
final Rectangle size = getSize();
if (getSurfaceData() != null && oldData != getSurfaceData()) {
clearBackground(size.width, size.height);
}
if (blit) {
blitSurfaceData(oldData, getSurfaceData());
}
if (oldData != null && oldData != getSurfaceData()) {
// TODO: drop oldData for D3D/WGL pipelines
// This can only happen when this peer is being created
oldData.flush();
}
}
flushOnscreenGraphics();
}
@Override
public void updateMinimumSize() {
final Dimension min;
if (getTarget().isMinimumSizeSet()) {
min = getTarget().getMinimumSize();
min.width = Math.max(min.width, MINIMUM_WIDTH);
min.height = Math.max(min.height, MINIMUM_HEIGHT);
} else {
min = new Dimension(MINIMUM_WIDTH, MINIMUM_HEIGHT);
}
final Dimension max;
if (getTarget().isMaximumSizeSet()) {
max = getTarget().getMaximumSize();
max.width = Math.min(max.width, getLWGC().getMaxTextureWidth());
max.height = Math.min(max.height, getLWGC().getMaxTextureHeight());
} else {
max = new Dimension(getLWGC().getMaxTextureWidth(), getLWGC().getMaxTextureHeight());
}
platformWindow.setSizeConstraints(min.width, min.height, max.width, max.height);
}
/** Returns true if the GraphicsDevice has been changed, false otherwise. */
public boolean updateGraphicsDevice() {
GraphicsDevice newGraphicsDevice = platformWindow.getGraphicsDevice();
synchronized (getStateLock()) {
if (graphicsDevice == newGraphicsDevice) {
return false;
}
graphicsDevice = newGraphicsDevice;
}
final GraphicsConfiguration newGC = newGraphicsDevice.getDefaultConfiguration();
if (!setGraphicsConfig(newGC)) return false;
SunToolkit.executeOnEventHandlerThread(
getTarget(),
new Runnable() {
public void run() {
AWTAccessor.getComponentAccessor().setGraphicsConfiguration(getTarget(), newGC);
}
});
return true;
}
/**
* Called by the {@code PlatformWindow} when this window is moved/resized by user or window insets
* are changed. There's no notifyReshape() in LWComponentPeer as the only components which could
* be resized by user are top-level windows.
*/
@Override
public final void notifyReshape(int x, int y, int w, int h) {
final boolean moved;
final boolean resized;
final boolean invalid = updateInsets(platformWindow.getInsets());
synchronized (getStateLock()) {
moved = (x != sysX) || (y != sysY);
resized = (w != sysW) || (h != sysH);
sysX = x;
sysY = y;
sysW = w;
sysH = h;
}
// Check if anything changed
if (!moved && !resized && !invalid) {
return;
}
// First, update peer's bounds
setBounds(x, y, w, h, SET_BOUNDS, false, false);
// Second, update the graphics config and surface data
final boolean isNewDevice = updateGraphicsDevice();
if (resized || isNewDevice) {
replaceSurfaceData();
}
// Third, COMPONENT_MOVED/COMPONENT_RESIZED/PAINT events
if (moved || invalid) {
handleMove(x, y, true);
}
if (resized || invalid || isNewDevice) {
handleResize(w, h, true);
repaintPeer();
}
repositionSecurityWarning();
}
@Override
public void setMenuBar(MenuBar mb) {
platformWindow.setMenuBar(mb);
}
@Override
public void exitFullScreenMode() {
platformWindow.exitFullScreenMode();
updateSecurityWarningVisibility();
}
@Override // FramePeer and DialogPeer
public void setTitle(String title) {
platformWindow.setTitle(title == null ? "" : title);
}
@Override // FramePeer and DialogPeer
public void setResizable(boolean resizable) {
platformWindow.setResizable(resizable);
}
@Override
public void updateFocusableWindowState() {
targetFocusable = getTarget().isFocusableWindow();
platformWindow.updateFocusableWindowState();
}
@Override
public void updateAlwaysOnTopState() {
platformWindow.setAlwaysOnTop(getTarget().isAlwaysOnTop());
}
@Override
public void toBack() {
platformWindow.toBack();
}
@Override
public void toFront() {
platformWindow.toFront();
}
@Override
public void setState(int state) {
platformWindow.setWindowState(state);
}
@Override
public Point getLocationOnScreen() {
return platformWindow.getLocationOnScreen();
}
/*
* Called by the delegate to dispatch the event to Java. Event
* coordinates are relative to non-client window are, i.e. the top-left
* point of the client area is (insets.top, insets.left).
*/
@Override
public void notifyMouseEvent(
PlatformWindow eventPlatformWindow,
int id,
long when,
int button,
int x,
int y,
int screenX,
int screenY,
int modifiers,
int clickCount,
boolean popupTrigger,
byte[] bdata) {
// TODO: fill "bdata" member of AWTEvent
Rectangle r = getBounds();
// findPeerAt() expects parent coordinates
LWComponentPeer<?, ?> targetPeer = findPeerAt(r.x + x, r.y + y);
if (id == MouseEvent.MOUSE_EXITED) {
isMouseOver = false;
if (lastMouseEventPeer != null) {
if (lastMouseEventPeer.isEnabled()) {
Point lp = lastMouseEventPeer.windowToLocal(x, y, this);
Component target = lastMouseEventPeer.getTarget();
postMouseExitedEvent(
target, when, modifiers, lp, screenX, screenY, clickCount, popupTrigger, button);
}
// Sometimes we may get MOUSE_EXITED after lastCommonMouseEventPeer is switched
// to a peer from another window. So we must first check if this peer is
// the same as lastWindowPeer
if (lastCommonMouseEventPeer != null
&& lastCommonMouseEventPeer.getWindowPeerOrSelf() == this) {
lastCommonMouseEventPeer = null;
}
lastMouseEventPeer = null;
}
} else if (id == MouseEvent.MOUSE_ENTERED) {
isMouseOver = true;
if (targetPeer != null) {
if (targetPeer.isEnabled()) {
Point lp = targetPeer.windowToLocal(x, y, this);
Component target = targetPeer.getTarget();
postMouseEnteredEvent(
target, when, modifiers, lp, screenX, screenY, clickCount, popupTrigger, button);
}
lastCommonMouseEventPeer = targetPeer;
lastMouseEventPeer = targetPeer;
}
} else {
LWWindowPeer topmostWindowPeer =
eventPlatformWindow != null ? eventPlatformWindow.getPeer() : null;
// topmostWindowPeer == null condition is added for the backward
// compatibility with applets. It can be removed when the
// getTopmostPlatformWindowUnderMouse() method will be properly
// implemented in CPlatformEmbeddedFrame class
if (topmostWindowPeer == this || topmostWindowPeer == null) {
generateMouseEnterExitEventsForComponents(
when, button, x, y, screenX, screenY, modifiers, clickCount, popupTrigger, targetPeer);
} else {
LWComponentPeer<?, ?> topmostTargetPeer = topmostWindowPeer.findPeerAt(r.x + x, r.y + y);
topmostWindowPeer.generateMouseEnterExitEventsForComponents(
when,
button,
x,
y,
screenX,
screenY,
modifiers,
clickCount,
popupTrigger,
topmostTargetPeer);
}
// TODO: fill "bdata" member of AWTEvent
int eventButtonMask = (button > 0) ? MouseEvent.getMaskForButton(button) : 0;
int otherButtonsPressed = modifiers & ~eventButtonMask;
// For pressed/dragged/released events OS X treats other
// mouse buttons as if they were BUTTON2, so we do the same
int targetIdx = (button > 3) ? MouseEvent.BUTTON2 - 1 : button - 1;
// MOUSE_ENTERED/EXITED are generated for the components strictly under
// mouse even when dragging. That's why we first update lastMouseEventPeer
// based on initial targetPeer value and only then recalculate targetPeer
// for MOUSE_DRAGGED/RELEASED events
if (id == MouseEvent.MOUSE_PRESSED) {
// Ungrab only if this window is not an owned window of the grabbing one.
if (!isGrabbing() && grabbingWindow != null && !grabbingWindow.isOneOfOwnersOf(this)) {
grabbingWindow.ungrab();
}
if (otherButtonsPressed == 0) {
mouseClickButtons = eventButtonMask;
} else {
mouseClickButtons |= eventButtonMask;
}
// The window should be focused on mouse click. If it gets activated by the native platform,
// this request will be no op. It will take effect when:
// 1. A simple not focused window is clicked.
// 2. An active but not focused owner frame/dialog is clicked.
// The mouse event then will trigger a focus request "in window" to the component, so the
// window
// should gain focus before.
requestWindowFocus(CausedFocusEvent.Cause.MOUSE_EVENT);
mouseDownTarget[targetIdx] = targetPeer;
} else if (id == MouseEvent.MOUSE_DRAGGED) {
// Cocoa dragged event has the information about which mouse
// button is being dragged. Use it to determine the peer that
// should receive the dragged event.
targetPeer = mouseDownTarget[targetIdx];
mouseClickButtons &= ~modifiers;
} else if (id == MouseEvent.MOUSE_RELEASED) {
// TODO: currently, mouse released event goes to the same component
// that received corresponding mouse pressed event. For most cases,
// it's OK, however, we need to make sure that our behavior is consistent
// with 1.6 for cases where component in question have been
// hidden/removed in between of mouse pressed/released events.
targetPeer = mouseDownTarget[targetIdx];
if ((modifiers & eventButtonMask) == 0) {
mouseDownTarget[targetIdx] = null;
}
// mouseClickButtons is updated below, after MOUSE_CLICK is sent
}
if (targetPeer == null) {
// TODO This can happen if this window is invisible. this is correct behavior in this case?
targetPeer = this;
}
Point lp = targetPeer.windowToLocal(x, y, this);
if (targetPeer.isEnabled()) {
MouseEvent event =
new MouseEvent(
targetPeer.getTarget(),
id,
when,
modifiers,
lp.x,
lp.y,
screenX,
screenY,
clickCount,
popupTrigger,
button);
postEvent(event);
}
if (id == MouseEvent.MOUSE_RELEASED) {
if ((mouseClickButtons & eventButtonMask) != 0 && targetPeer.isEnabled()) {
postEvent(
new MouseEvent(
targetPeer.getTarget(),
MouseEvent.MOUSE_CLICKED,
when,
modifiers,
lp.x,
lp.y,
screenX,
screenY,
clickCount,
popupTrigger,
button));
}
mouseClickButtons &= ~eventButtonMask;
}
}
notifyUpdateCursor();
}
@Override
public FontMetrics getFontMetrics(Font f) {
// TODO: check for "use platform metrics" settings
return platformWindow.getFontMetrics(f);
}