/*******************************************************************************
* Copyright (c) 2000, 2011 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.widgets;
import org.eclipse.swt.internal.*;
import org.eclipse.swt.internal.photon.*;
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.events.*;
/**
* Instances of this class represent the "windows"
* which the desktop or "window manager" is managing.
* Instances that do not have a parent (that is, they
* are built using the constructor, which takes a
* <code>Display</code> as the argument) are described
* as <em>top level</em> shells. Instances that do have
* a parent are described as <em>secondary</em> or
* <em>dialog</em> shells.
* <p>
* Instances are always displayed in one of the maximized,
* minimized or normal states:
* <ul>
* <li>
* When an instance is marked as <em>maximized</em>, the
* window manager will typically resize it to fill the
* entire visible area of the display, and the instance
* is usually put in a state where it can not be resized
* (even if it has style <code>RESIZE</code>) until it is
* no longer maximized.
* </li><li>
* When an instance is in the <em>normal</em> state (neither
* maximized or minimized), its appearance is controlled by
* the style constants which were specified when it was created
* and the restrictions of the window manager (see below).
* </li><li>
* When an instance has been marked as <em>minimized</em>,
* its contents (client area) will usually not be visible,
* and depending on the window manager, it may be
* "iconified" (that is, replaced on the desktop by a small
* simplified representation of itself), relocated to a
* distinguished area of the screen, or hidden. Combinations
* of these changes are also possible.
* </li>
* </ul>
* </p><p>
* The <em>modality</em> of an instance may be specified using
* style bits. The modality style bits are used to determine
* whether input is blocked for other shells on the display.
* The <code>PRIMARY_MODAL</code> style allows an instance to block
* input to its parent. The <code>APPLICATION_MODAL</code> style
* allows an instance to block input to every other shell in the
* display. The <code>SYSTEM_MODAL</code> style allows an instance
* to block input to all shells, including shells belonging to
* different applications.
* </p><p>
* Note: The styles supported by this class are treated
* as <em>HINT</em>s, since the window manager for the
* desktop on which the instance is visible has ultimate
* control over the appearance and behavior of decorations
* and modality. For example, some window managers only
* support resizable windows and will always assume the
* RESIZE style, even if it is not set. In addition, if a
* modality style is not supported, it is "upgraded" to a
* more restrictive modality style that is supported. For
* example, if <code>PRIMARY_MODAL</code> is not supported,
* it would be upgraded to <code>APPLICATION_MODAL</code>.
* A modality style may also be "downgraded" to a less
* restrictive style. For example, most operating systems
* no longer support <code>SYSTEM_MODAL</code> because
* it can freeze up the desktop, so this is typically
* downgraded to <code>APPLICATION_MODAL</code>.
* <dl>
* <dt><b>Styles:</b></dt>
* <dd>BORDER, CLOSE, MIN, MAX, NO_TRIM, RESIZE, TITLE, ON_TOP, TOOL, SHEET</dd>
* <dd>APPLICATION_MODAL, MODELESS, PRIMARY_MODAL, SYSTEM_MODAL</dd>
* <dt><b>Events:</b></dt>
* <dd>Activate, Close, Deactivate, Deiconify, Iconify</dd>
* </dl>
* Class <code>SWT</code> provides two "convenience constants"
* for the most commonly required style combinations:
* <dl>
* <dt><code>SHELL_TRIM</code></dt>
* <dd>
* the result of combining the constants which are required
* to produce a typical application top level shell: (that
* is, <code>CLOSE | TITLE | MIN | MAX | RESIZE</code>)
* </dd>
* <dt><code>DIALOG_TRIM</code></dt>
* <dd>
* the result of combining the constants which are required
* to produce a typical application dialog shell: (that
* is, <code>TITLE | CLOSE | BORDER</code>)
* </dd>
* </dl>
* </p>
* <p>
* Note: Only one of the styles APPLICATION_MODAL, MODELESS,
* PRIMARY_MODAL and SYSTEM_MODAL may be specified.
* </p><p>
* IMPORTANT: This class is <em>not</em> intended to be subclassed.
* </p>
*
* @see Decorations
* @see SWT
* @see <a href="http://www.eclipse.org/swt/snippets/#shell">Shell snippets</a>
* @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a>
* @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
* @noextend This class is not intended to be subclassed by clients.
*/
public class Shell extends Decorations {
int shellHandle;
Menu activeMenu;
int blockedList;
Control lastActive;
boolean modified;
/**
* Constructs a new instance of this class. This is equivalent
* to calling <code>Shell((Display) null)</code>.
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
* <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
* </ul>
*/
public Shell () {
this ((Display) null);
}
/**
* Constructs a new instance of this class given only the style
* value describing its behavior and appearance. This is equivalent
* to calling <code>Shell((Display) null, style)</code>.
* <p>
* The style value is either one of the style constants defined in
* class <code>SWT</code> which is applicable to instances of this
* class, or must be built by <em>bitwise OR</em>'ing together
* (that is, using the <code>int</code> "|" operator) two or more
* of those <code>SWT</code> style constants. The class description
* lists the style constants that are applicable to the class.
* Style bits are also inherited from superclasses.
* </p>
*
* @param style the style of control to construct
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
* <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
* </ul>
*
* @see SWT#BORDER
* @see SWT#CLOSE
* @see SWT#MIN
* @see SWT#MAX
* @see SWT#RESIZE
* @see SWT#TITLE
* @see SWT#TOOL
* @see SWT#NO_TRIM
* @see SWT#SHELL_TRIM
* @see SWT#DIALOG_TRIM
* @see SWT#ON_TOP
* @see SWT#MODELESS
* @see SWT#PRIMARY_MODAL
* @see SWT#APPLICATION_MODAL
* @see SWT#SYSTEM_MODAL
* @see SWT#SHEET
*/
public Shell (int style) {
this ((Display) null, style);
}
/**
* Constructs a new instance of this class given only the display
* to create it on. It is created with style <code>SWT.SHELL_TRIM</code>.
* <p>
* Note: Currently, null can be passed in for the display argument.
* This has the effect of creating the shell on the currently active
* display if there is one. If there is no current display, the
* shell is created on a "default" display. <b>Passing in null as
* the display argument is not considered to be good coding style,
* and may not be supported in a future release of SWT.</b>
* </p>
*
* @param display the display to create the shell on
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
* <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
* </ul>
*/
public Shell (Display display) {
this (display, SWT.CLOSE | SWT.TITLE | SWT.MIN | SWT.MAX | SWT.RESIZE);
}
/**
* Constructs a new instance of this class given the display
* to create it on and a style value describing its behavior
* and appearance.
* <p>
* The style value is either one of the style constants defined in
* class <code>SWT</code> which is applicable to instances of this
* class, or must be built by <em>bitwise OR</em>'ing together
* (that is, using the <code>int</code> "|" operator) two or more
* of those <code>SWT</code> style constants. The class description
* lists the style constants that are applicable to the class.
* Style bits are also inherited from superclasses.
* </p><p>
* Note: Currently, null can be passed in for the display argument.
* This has the effect of creating the shell on the currently active
* display if there is one. If there is no current display, the
* shell is created on a "default" display. <b>Passing in null as
* the display argument is not considered to be good coding style,
* and may not be supported in a future release of SWT.</b>
* </p>
*
* @param display the display to create the shell on
* @param style the style of control to construct
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
* <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
* </ul>
*
* @see SWT#BORDER
* @see SWT#CLOSE
* @see SWT#MIN
* @see SWT#MAX
* @see SWT#RESIZE
* @see SWT#TITLE
* @see SWT#TOOL
* @see SWT#NO_TRIM
* @see SWT#SHELL_TRIM
* @see SWT#DIALOG_TRIM
* @see SWT#ON_TOP
* @see SWT#MODELESS
* @see SWT#PRIMARY_MODAL
* @see SWT#APPLICATION_MODAL
* @see SWT#SYSTEM_MODAL
* @see SWT#SHEET
*/
public Shell (Display display, int style) {
this (display, null, style, 0);
}
Shell (Display display, Shell parent, int style, int handle) {
super ();
if (display == null) display = Display.getCurrent ();
if (display == null) display = Display.getDefault ();
if (!display.isValidThread ()) {
error (SWT.ERROR_THREAD_INVALID_ACCESS);
}
if (parent != null && parent.isDisposed ()) {
error (SWT.ERROR_INVALID_ARGUMENT);
}
this.style = checkStyle (style);
this.parent = parent;
this.display = display;
this.handle = handle;
reskinWidget();
createWidget (0);
}
/**
* Constructs a new instance of this class given only its
* parent. It is created with style <code>SWT.DIALOG_TRIM</code>.
* <p>
* Note: Currently, null can be passed in for the parent.
* This has the effect of creating the shell on the currently active
* display if there is one. If there is no current display, the
* shell is created on a "default" display. <b>Passing in null as
* the parent is not considered to be good coding style,
* and may not be supported in a future release of SWT.</b>
* </p>
*
* @param parent a shell which will be the parent of the new instance
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_INVALID_ARGUMENT - if the parent is disposed</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
* <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
* </ul>
*/
public Shell (Shell parent) {
this (parent, SWT.DIALOG_TRIM);
}
/**
* Constructs a new instance of this class given its parent
* and a style value describing its behavior and appearance.
* <p>
* The style value is either one of the style constants defined in
* class <code>SWT</code> which is applicable to instances of this
* class, or must be built by <em>bitwise OR</em>'ing together
* (that is, using the <code>int</code> "|" operator) two or more
* of those <code>SWT</code> style constants. The class description
* lists the style constants that are applicable to the class.
* Style bits are also inherited from superclasses.
* </p><p>
* Note: Currently, null can be passed in for the parent.
* This has the effect of creating the shell on the currently active
* display if there is one. If there is no current display, the
* shell is created on a "default" display. <b>Passing in null as
* the parent is not considered to be good coding style,
* and may not be supported in a future release of SWT.</b>
* </p>
*
* @param parent a shell which will be the parent of the new instance
* @param style the style of control to construct
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_INVALID_ARGUMENT - if the parent is disposed</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
* <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
* </ul>
*
* @see SWT#BORDER
* @see SWT#CLOSE
* @see SWT#MIN
* @see SWT#MAX
* @see SWT#RESIZE
* @see SWT#TITLE
* @see SWT#NO_TRIM
* @see SWT#SHELL_TRIM
* @see SWT#DIALOG_TRIM
* @see SWT#ON_TOP
* @see SWT#TOOL
* @see SWT#MODELESS
* @see SWT#PRIMARY_MODAL
* @see SWT#APPLICATION_MODAL
* @see SWT#SYSTEM_MODAL
* @see SWT#SHEET
*/
public Shell (Shell parent, int style) {
this (parent != null ? parent.display : null, parent, style, 0);
}
public static Shell photon_new (Display display, int handle) {
return new Shell (display, null, SWT.NO_TRIM, handle);
}
/**
* Adds the listener to the collection of listeners who will
* be notified when operations are performed on the receiver,
* by sending the listener one of the messages defined in the
* <code>ShellListener</code> interface.
*
* @param listener the listener which should be notified
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @see ShellListener
* @see #removeShellListener
*/
public void addShellListener (ShellListener listener) {
checkWidget();
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
TypedListener typedListener = new TypedListener (listener);
addListener (SWT.Close,typedListener);
addListener (SWT.Iconify,typedListener);
addListener (SWT.Deiconify,typedListener);
addListener (SWT.Activate, typedListener);
addListener (SWT.Deactivate, typedListener);
}
void bringToTop (boolean force) {
if (!force) {
if (display.getActiveShell () == null) return;
}
OS.PtWindowToFront (shellHandle);
}
static int checkStyle (int style) {
style = Decorations.checkStyle (style);
style &= ~SWT.TRANSPARENT;
int mask = SWT.SYSTEM_MODAL | SWT.APPLICATION_MODAL | SWT.PRIMARY_MODAL;
int bits = style & ~mask;
if ((style & SWT.SYSTEM_MODAL) != 0) return bits | SWT.SYSTEM_MODAL;
if ((style & SWT.APPLICATION_MODAL) != 0) return bits | SWT.APPLICATION_MODAL;
if ((style & SWT.PRIMARY_MODAL) != 0) return bits | SWT.PRIMARY_MODAL;
return bits;
}
void closeWidget () {
Event event = new Event ();
event.time = (int) System.currentTimeMillis ();
sendEvent (SWT.Close, event);
if (event.doit && !isDisposed ()) dispose ();
}
/**
* Requests that the window manager close the receiver in
* the same way it would be closed when the user clicks on
* the "close box" or performs some other platform specific
* key or mouse combination that indicates the window
* should be removed.
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @see SWT#Close
* @see #dispose
*/
public void close () {
checkWidget();
closeWidget ();
}
public Rectangle computeTrim (int x, int y, int width, int height) {
checkWidget();
int [] args = {OS.Pt_ARG_WINDOW_RENDER_FLAGS, 0, 0};
OS.PtGetResources (shellHandle, args.length / 3, args);
int flags = args [1];
int [] left = new int [1], top = new int [1];
int [] right = new int [1], bottom = new int [1];
OS.PtFrameSize (flags, 0, left, top, right, bottom);
int trimX = x - left [0];
int trimY = y - top [0];
int trimWidth = width + left [0] + right [0];
int trimHeight = height + top [0] + bottom [0];
if (menuBar != null) {
PhDim_t dim = new PhDim_t ();
int menuHandle = menuBar.handle;
if (!OS.PtWidgetIsRealized (menuHandle)) {
OS.PtExtentWidgetFamily (menuHandle);
}
OS.PtWidgetPreferredSize (menuHandle, dim);
trimHeight += dim.h;
trimY -= dim.h;
}
return new Rectangle (trimX, trimY, trimWidth, trimHeight);
}
void createHandle (int index) {
state |= HANDLE | GRAB | CANVAS;
if (handle != 0) {
int clazz = display.PtContainer;
int [] args = {
OS.Pt_ARG_FILL_COLOR, OS.Pg_TRANSPARENT, 0,
OS.Pt_ARG_CONTAINER_FLAGS, OS.Pt_HOTKEYS_FIRST, OS.Pt_HOTKEYS_FIRST,
OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS,
};
shellHandle = OS.PtCreateWidget (clazz, handle, args.length / 3, args);
if (shellHandle == 0) error (SWT.ERROR_NO_HANDLES);
} else {
int parentHandle = 0;
if (parent != null) parentHandle = parent.topHandle ();
Monitor monitor = getMonitor ();
Rectangle rect = monitor.getClientArea ();
int width = rect.width * 5 / 8;
int height = rect.height * 5 / 8;
int decorations = 0;
int flags =
OS.Ph_WM_RENDER_MIN | OS.Ph_WM_RENDER_MAX | OS.Ph_WM_RENDER_RESIZE |
OS.Ph_WM_RENDER_BORDER | OS.Ph_WM_RENDER_MENU | OS.Ph_WM_RENDER_MIN |
OS.Ph_WM_RENDER_TITLE;
if ((style & SWT.NO_TRIM) == 0) {
if ((style & SWT.MIN) != 0) decorations |= OS.Ph_WM_RENDER_MIN;
if ((style & SWT.MAX) != 0) decorations |= OS.Ph_WM_RENDER_MAX;
if ((style & SWT.RESIZE) != 0) {
decorations |= OS.Ph_WM_RENDER_BORDER | OS.Ph_WM_RENDER_RESIZE;
}
if ((style & SWT.BORDER) != 0) decorations |= OS.Ph_WM_RENDER_BORDER;
if ((style & SWT.MENU) != 0) decorations |= OS.Ph_WM_RENDER_MENU;
if ((style & SWT.TITLE) != 0) decorations |= OS.Ph_WM_RENDER_TITLE;
}
int notifyFlags =
OS.Ph_WM_ICON | OS.Ph_WM_FOCUS |
OS.Ph_WM_MOVE | OS.Ph_WM_RESIZE;
int windowState = OS.Ph_WM_STATE_ISFOCUS;
if ((style & SWT.ON_TOP) != 0) windowState = OS.Ph_WM_STATE_ISFRONT;
int titlePtr = OS.malloc (1);
OS.memset(titlePtr, 0, 1);
int [] args = {
OS.Pt_ARG_WIDTH, width, 0,
OS.Pt_ARG_HEIGHT, height, 0,
OS.Pt_ARG_WINDOW_TITLE, titlePtr, 0,
OS.Pt_ARG_WINDOW_RENDER_FLAGS, decorations, flags,
OS.Pt_ARG_WINDOW_MANAGED_FLAGS, 0, OS.Ph_WM_CLOSE,
OS.Pt_ARG_WINDOW_NOTIFY_FLAGS, notifyFlags, notifyFlags,
OS.Pt_ARG_WINDOW_STATE, windowState, ~0,
OS.Pt_ARG_FLAGS, OS.Pt_DELAY_REALIZE, OS.Pt_DELAY_REALIZE,
OS.Pt_ARG_FILL_COLOR, OS.Pg_TRANSPARENT, 0,
OS.Pt_ARG_CONTAINER_FLAGS, OS.Pt_HOTKEYS_FIRST, OS.Pt_HOTKEYS_FIRST,
OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS,
};
OS.PtSetParentWidget (parentHandle);
shellHandle = OS.PtCreateWidget (OS.PtWindow (), parentHandle, args.length / 3, args);
OS.free (titlePtr);
if (shellHandle == 0) error (SWT.ERROR_NO_HANDLES);
}
createScrolledHandle (shellHandle);
if ((style & (SWT.NO_TRIM | SWT.BORDER | SWT.RESIZE)) == 0) {
int [] args = {
OS.Pt_ARG_FLAGS, OS.Pt_HIGHLIGHTED, OS.Pt_HIGHLIGHTED,
OS.Pt_ARG_BASIC_FLAGS, OS.Pt_ALL_OUTLINES, ~0,
};
OS.PtSetResources (scrolledHandle, args.length / 3, args);
}
int trim = SWT.TITLE | SWT.CLOSE | SWT.MIN | SWT.MAX;
if ((style & SWT.NO_TRIM) != 0 || (style & trim) == 0) {
OS.PtSetResource (shellHandle, OS.Pt_ARG_MIN_WIDTH, 0, 0);
}
OS.PtSetResource (shellHandle, OS.Pt_ARG_MIN_HEIGHT, 0, 0);
int [] args = new int [] {OS.Pt_ARG_WIDTH, 0, 0, OS.Pt_ARG_HEIGHT, 0, 0};
OS.PtGetResources (shellHandle, args.length / 3, args);
resizeBounds (args [1], args [4]);
}
void deregister () {
super.deregister ();
WidgetTable.remove (shellHandle);
}
Composite findDeferredControl () {
return layoutCount > 0 ? this : null;
}
/**
* If the receiver is visible, moves it to the top of the
* drawing order for the display on which it was created
* (so that all other shells on that display, which are not
* the receiver's children will be drawn behind it) and forces
* the window manager to make the shell active.
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @since 2.0
* @see Control#moveAbove
* @see Control#setFocus
* @see Control#setVisible
* @see Display#getActiveShell
* @see Decorations#setDefaultButton(Button)
* @see Shell#open
* @see Shell#setActive
*/
public void forceActive () {
checkWidget ();
bringToTop (true);
}
/**
* Returns the receiver's alpha value. The alpha value
* is between 0 (transparent) and 255 (opaque).
*
* @return the alpha value
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @since 3.4
*/
public int getAlpha () {
checkWidget ();
return 255;
}
public Rectangle getBounds () {
checkWidget();
PhArea_t area = new PhArea_t ();
OS.PtWidgetArea (shellHandle, area);
int width = area.size_w, height = area.size_h;
int [] args = {OS.Pt_ARG_WINDOW_RENDER_FLAGS, 0, 0};
OS.PtGetResources (shellHandle, args.length / 3, args);
int flags = args [1];
int [] left = new int [1], top = new int [1];
int [] right = new int [1], bottom = new int [1];
OS.PtFrameSize (flags, 0, left, top, right, bottom);
width += left [0] + right [0];
height += top [0] + bottom [0];
return new Rectangle (area.pos_x, area.pos_y, width, height);
}
/**
* Returns <code>true</code> if the receiver is currently
* in fullscreen state, and false otherwise.
* <p>
*
* @return the fullscreen state
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @since 3.4
*/
public boolean getFullScreen () {
checkWidget();
return false;
}
/**
* Returns the receiver's input method editor mode. This
* will be the result of bitwise OR'ing together one or
* more of the following constants defined in class
* <code>SWT</code>:
* <code>NONE</code>, <code>ROMAN</code>, <code>DBCS</code>,
* <code>PHONETIC</code>, <code>NATIVE</code>, <code>ALPHA</code>.
*
* @return the IME mode
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @see SWT
*/
public int getImeInputMode () {
checkWidget();
return 0;
}
public boolean isEnabled () {
checkWidget();
return getEnabled ();
}
public Point getLocation () {
checkWidget();
//NOT DONE - shell location is 0,0 when queried before event loop
return super.getLocation ();
}
public boolean getMaximized () {
checkWidget();
int state = OS.PtWindowGetState (shellHandle);
if (state != -1) return (state & (OS.Ph_WM_STATE_ISMAX | OS.Ph_WM_STATE_ISMAXING)) != 0;
int [] args = {OS.Pt_ARG_WINDOW_STATE, 0, OS.Ph_WM_STATE_ISMAX};
OS.PtGetResources (shellHandle, args.length / 3, args);
return (args [1] & OS.Ph_WM_STATE_ISMAX) != 0;
}
public boolean getMinimized () {
checkWidget();
int state = OS.PtWindowGetState (shellHandle);
if (state != -1) return (state & OS.Ph_WM_STATE_ISICONIFIED) != 0;
int [] args = {OS.Pt_ARG_WINDOW_STATE, 0, OS.Ph_WM_STATE_ISICONIFIED};
OS.PtGetResources (shellHandle, args.length / 3, args);
return (args [1] & OS.Ph_WM_STATE_ISICONIFIED) != 0;
}
/**
* Returns a point describing the minimum receiver's size. The
* x coordinate of the result is the minimum width of the receiver.
* The y coordinate of the result is the minimum height of the
* receiver.
*
* @return the receiver's size
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @since 3.1
*/
public Point getMinimumSize () {
checkWidget();
int [] args = {OS.Pt_ARG_WINDOW_RENDER_FLAGS, 0, 0};
OS.PtGetResources (shellHandle, args.length / 3, args);
int flags = args [1];
int [] left = new int [1], top = new int [1];
int [] right = new int [1], bottom = new int [1];
OS.PtFrameSize (flags, 0, left, top, right, bottom);
args = new int [] {
OS.Pt_ARG_MIN_WIDTH, 0, 0,
OS.Pt_ARG_MIN_HEIGHT, 0, 0,
};
OS.PtGetResources (shellHandle, args.length / 3, args);
return new Point (args [1] + left [0] + right [0], args [4] + top [0] + bottom [0]);
}
/**
* Gets the receiver's modified state.
*
* @return <code>true</code> if the receiver is marked as modified, or <code>false</code> otherwise
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @since 3.5
*/
public boolean getModified () {
checkWidget ();
return modified;
}
/**
* Returns the region that defines the shape of the shell,
* or <code>null</code> if the shell has the default shape.
*
* @return the region that defines the shape of the shell, or <code>null</code>
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @since 3.0
*
*/
public Region getRegion () {
/* This method is needed for the @since 3.0 Javadoc */
checkWidget ();
return region;
}
public Shell getShell () {
checkWidget();
return this;
}
/**
* Returns an array containing all shells which are
* descendants of the receiver.
* <p>
* @return the dialog shells
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*/
public Shell [] getShells () {
checkWidget();
int count = 0;
Shell [] shells = display.getShells ();
for (int i=0; i<shells.length; i++) {
Control shell = shells [i];
do {
shell = shell.parent;
} while (shell != null && shell != this);
if (shell == this) count++;
}
int index = 0;
Shell [] result = new Shell [count];
for (int i=0; i<shells.length; i++) {
Control shell = shells [i];
do {
shell = shell.parent;
} while (shell != null && shell != this);
if (shell == this) {
result [index++] = shells [i];
}
}
return result;
}
public Point getSize () {
checkWidget();
int [] args = {
OS.Pt_ARG_WINDOW_RENDER_FLAGS, 0, 0,
OS.Pt_ARG_WIDTH, 0, 0,
OS.Pt_ARG_HEIGHT, 0, 0,
};
OS.PtGetResources (shellHandle, args.length / 3, args);
int flags = args [1];
int [] left = new int [1], top = new int [1];
int [] right = new int [1], bottom = new int [1];
OS.PtFrameSize (flags, 0, left, top, right, bottom);
int width = args [4] + left [0] + right [0];
int height = args [7] + top [0] + bottom [0];
return new Point (width, height);
}
/**
* Returns a ToolBar object representing the tool bar that can be shown in the receiver's
* trim. This will return <code>null</code> if the platform does not support tool bars that
* are not part of the content area of the shell, or if the Shell's style does not support
* having a tool bar.
* <p>
*
* @return a ToolBar object representing the Shell's tool bar, or <ocde>null</code>.
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @since 3.7
*/
public ToolBar getToolBar() {
return null;
}
void hookEvents () {
super.hookEvents ();
int windowProc = display.windowProc;
OS.PtAddCallback (shellHandle, OS.Pt_CB_WINDOW, windowProc, OS.Pt_CB_WINDOW);
OS.PtAddCallback (shellHandle, OS.Pt_CB_RESIZE, windowProc, OS.Pt_CB_RESIZE);
}
int hotkeyProc (int w, int data, int info) {
if (data != 0) {
Widget widget = WidgetTable.get (data);
if (widget instanceof MenuItem) {
MenuItem item = (MenuItem) widget;
if (item.isEnabled ()) item.Pt_CB_ACTIVATE (data, info);
}
}
return OS.Pt_CONTINUE;
}
/**
* Moves the receiver to the top of the drawing order for
* the display on which it was created (so that all other
* shells on that display, which are not the receiver's
* children will be drawn behind it), marks it visible,
* sets the focus and asks the window manager to make the
* shell active.
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @see Control#moveAbove
* @see Control#setFocus
* @see Control#setVisible
* @see Display#getActiveShell
* @see Decorations#setDefaultButton(Button)
* @see Shell#setActive
* @see Shell#forceActive
*/
public void open () {
checkWidget();
setVisible (true);
if (isDisposed ()) return;
traverseGroup (true);
}
public boolean print (GC gc) {
checkWidget ();
if (gc == null) error (SWT.ERROR_NULL_ARGUMENT);
if (gc.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT);
return false;
}
int Pt_CB_RESIZE (int widget, int info) {
if (info == 0) return OS.Pt_CONTINUE;
PtCallbackInfo_t cbinfo = new PtCallbackInfo_t ();
OS.memmove (cbinfo, info, PtCallbackInfo_t.sizeof);
if (cbinfo.cbdata == 0) return OS.Pt_CONTINUE;
int [] args = {OS.Pt_ARG_WIDTH, 0, 0, OS.Pt_ARG_HEIGHT, 0, 0};
OS.PtGetResources (shellHandle, args.length / 3, args);
resizeBounds (args [1], args [4]);
sendEvent(SWT.Resize);
if (layout != null) {
markLayout (false, false);
updateLayout (false);
}
return OS.Pt_CONTINUE;
}
int Pt_CB_WINDOW (int widget, int info) {
if (info == 0) return OS.Pt_CONTINUE;
PtCallbackInfo_t cbinfo = new PtCallbackInfo_t ();
OS.memmove (cbinfo, info, PtCallbackInfo_t.sizeof);
if (cbinfo.cbdata == 0) return OS.Pt_CONTINUE;
PhWindowEvent_t we = new PhWindowEvent_t ();
OS.memmove (we, cbinfo.cbdata, PhWindowEvent_t.sizeof);
switch (we.event_f) {
case OS.Ph_WM_CLOSE:
closeWidget ();
break;
case OS.Ph_WM_ICON:
if ((we.state_f & OS.Ph_WM_STATE_ISICONIFIED) != 0) {
sendEvent (SWT.Iconify);
} else {
sendEvent (SWT.Deiconify);
}
break;
case OS.Ph_WM_FOCUS:
switch ((int) we.event_state) {
case OS.Ph_WM_EVSTATE_FOCUS: sendEvent (SWT.Activate); break;
case OS.Ph_WM_EVSTATE_FOCUSLOST: sendEvent (SWT.Deactivate); break;
}
break;
case OS.Ph_WM_MOVE:
sendEvent (SWT.Move);
break;
}
return OS.Pt_CONTINUE;
}
void register () {
super.register ();
WidgetTable.put (shellHandle, this);
}
void realizeWidget() {
/* Do nothing */
}
void releaseParent () {
/* Do nothing */
}
void releaseHandle () {
super.releaseHandle ();
shellHandle = 0;
}
void releaseChildren (boolean destroy) {
Shell [] shells = getShells ();
for (int i=0; i<shells.length; i++) {
Shell shell = shells [i];
if (shell != null && !shell.isDisposed ()) {
/*
* Feature in Photon. A shell may have child shells that have been
* temporarily reparented to NULL because they were shown without
* showing the parent. In this case, Photon will not destroy the
* child shells because they are not in the widget hierarchy.
* The fix is to detect this case and destroy the shells.
*/
if (shell.parent != null && OS.PtWidgetParent (shell.shellHandle) == 0) {
shell.dispose ();
} else {
shell.release (false);
}
}
}
super.releaseChildren (destroy);
}
void releaseWidget () {
super.releaseWidget ();
if (blockedList != 0) OS.PtUnblockWindows (blockedList);
blockedList = 0;
lastActive = null;
}
/**
* Removes the listener from the collection of listeners who will
* be notified when operations are performed on the receiver.
*
* @param listener the listener which should no longer be notified
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @see ShellListener
* @see #addShellListener
*/
public void removeShellListener (ShellListener listener) {
checkWidget();
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
if (eventTable == null) return;
eventTable.unhook (SWT.Close, listener);
eventTable.unhook (SWT.Iconify,listener);
eventTable.unhook (SWT.Deiconify,listener);
eventTable.unhook (SWT.Activate, listener);
eventTable.unhook (SWT.Deactivate, listener);
}
void reskinChildren (int flags) {
Shell [] shells = getShells ();
for (int i=0; i<shells.length; i++) {
Shell shell = shells [i];
if (shell != null) shell.reskin (flags);
}
super.reskinChildren (flags);
}
/**
* If the receiver is visible, moves it to the top of the
* drawing order for the display on which it was created
* (so that all other shells on that display, which are not
* the receiver's children will be drawn behind it) and asks
* the window manager to make the shell active
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @since 2.0
* @see Control#moveAbove
* @see Control#setFocus
* @see Control#setVisible
* @see Display#getActiveShell
* @see Decorations#setDefaultButton(Button)
* @see Shell#open
* @see Shell#setActive
*/
public void setActive () {
checkWidget ();
bringToTop (false);
}
void setActiveControl (Control control) {
if (control != null && control.isDisposed ()) control = null;
if (lastActive != null && lastActive.isDisposed ()) lastActive = null;
if (lastActive == control) return;
/*
* Compute the list of controls to be activated and
* deactivated by finding the first common parent
* control.
*/
Control [] activate = (control == null) ? new Control[0] : control.getPath ();
Control [] deactivate = (lastActive == null) ? new Control[0] : lastActive.getPath ();
lastActive = control;
int index = 0, length = Math.min (activate.length, deactivate.length);
while (index < length) {
if (activate [index] != deactivate [index]) break;
index++;
}
/*
* It is possible (but unlikely), that application
* code could have destroyed some of the widgets. If
* this happens, keep processing those widgets that
* are not disposed.
*/
for (int i=deactivate.length-1; i>=index; --i) {
if (!deactivate [i].isDisposed ()) {
deactivate [i].sendEvent (SWT.Deactivate);
}
}
for (int i=activate.length-1; i>=index; --i) {
if (!activate [i].isDisposed ()) {
activate [i].sendEvent (SWT.Activate);
}
}
}
/**
* Sets the receiver's alpha value which must be
* between 0 (transparent) and 255 (opaque).
* <p>
* This operation requires the operating system's advanced
* widgets subsystem which may not be available on some
* platforms.
* </p>
* @param alpha the alpha value
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @since 3.4
*/
public void setAlpha (int alpha) {
checkWidget ();
/*Not implemented */
}
int setBounds (int x, int y, int width, int height, boolean move, boolean resize, boolean events) {
checkWidget();
if (OS.PtWidgetClass (shellHandle) != OS.PtWindow ()) {
int result = super.setBounds (x, y, width, height, move, resize, events);
if ((result & RESIZED) != 0) resizeBounds (width, height);
return result;
}
boolean isFocus = caret != null && caret.isFocusCaret ();
if (isFocus) caret.killFocus ();
if (resize) {
/* Get the trimings */
int [] args = {OS.Pt_ARG_WINDOW_RENDER_FLAGS, 0, 0};
OS.PtGetResources (shellHandle, args.length / 3, args);
int flags = args [1];
int [] left = new int [1], top = new int [1];
int [] right = new int [1], bottom = new int [1];
OS.PtFrameSize (flags, 0, left, top, right, bottom);
width = Math.max (width - left [0] - right [0], 0);
height = Math.max (height - top [0] - bottom [0], 0);
}
PhArea_t oldArea = new PhArea_t ();
OS.PtWidgetArea (shellHandle, oldArea);
if (move && resize) {
PhArea_t area = new PhArea_t ();
area.pos_x = (short) x;
area.pos_y = (short) y;
area.size_w = (short) width;
area.size_h = (short) height;
int ptr = OS.malloc (PhArea_t.sizeof);
OS.memmove (ptr, area, PhArea_t.sizeof);
OS.PtSetResource (shellHandle, OS.Pt_ARG_AREA, ptr, 0);
OS.free (ptr);
} else {
if (move) {
PhPoint_t pt = new PhPoint_t ();
pt.x = (short) x;
pt.y = (short) y;
int ptr = OS.malloc (PhPoint_t.sizeof);
OS.memmove (ptr, pt, PhPoint_t.sizeof);
OS.PtSetResource (shellHandle, OS.Pt_ARG_POS, ptr, 0);
OS.free (ptr);
} else if (resize) {
int [] args = {
OS.Pt_ARG_WIDTH, width, 0,
OS.Pt_ARG_HEIGHT, height, 0,
};
OS.PtSetResources (shellHandle, args.length / 3, args);
}
}
/*
* Feature in Photon. The shell does not issue WM_SIZE
* event notificatoin until it is realized. The fix is
* to detect size changes and send the events.
*/
if (!OS.PtWidgetIsRealized (shellHandle)) {
PhArea_t newArea = new PhArea_t ();
OS.PtWidgetArea (shellHandle, newArea);
boolean sameOrigin = oldArea.pos_x == newArea.pos_x && oldArea.pos_y == newArea.pos_y;
boolean sameExtent = oldArea.size_w == newArea.size_w && oldArea.size_h == newArea.size_h;
if (!sameOrigin & move) sendEvent (SWT.Move);
if (!sameExtent & resize) {
resizeBounds (newArea.size_w, newArea.size_h);
sendEvent(SWT.Resize);
if (layout != null) {
markLayout (false, false);
updateLayout (false);
}
}
}
if (isFocus) caret.setFocus ();
/* Always return 0 */
return 0;
}
/**
* Sets the full screen state of the receiver.
* If the argument is <code>true</code> causes the receiver
* to switch to the full screen state, and if the argument is
* <code>false</code> and the receiver was previously switched
* into full screen state, causes the receiver to switch back
* to either the maximized or normal states.
* <p>
* Note: The result of intermixing calls to <code>setFullScreen(true)</code>,
* <code>setMaximized(true)</code> and <code>setMinimized(true)</code> will
* vary by platform. Typically, the behavior will match the platform user's
* expectations, but not always. This should be avoided if possible.
* </p>
*
* @param fullScreen the new fullscreen state
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @since 3.4
*/
public void setFullScreen (boolean fullScreen) {
checkWidget();
}
/**
* Sets the input method editor mode to the argument which
* should be the result of bitwise OR'ing together one or more
* of the following constants defined in class <code>SWT</code>:
* <code>NONE</code>, <code>ROMAN</code>, <code>DBCS</code>,
* <code>PHONETIC</code>, <code>NATIVE</code>, <code>ALPHA</code>.
*
* @param mode the new IME mode
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @see SWT
*/
public void setImeInputMode (int mode) {
checkWidget();
}
public void setMaximized (boolean maximized) {
checkWidget();
int bits = 0;
if (maximized) bits = OS.Ph_WM_STATE_ISMAX;
OS.PtSetResource (shellHandle, OS.Pt_ARG_WINDOW_STATE, bits, OS.Ph_WM_STATE_ISMAX);
if (OS.PtWidgetIsRealized (shellHandle)) {
PhWindowEvent_t event = new PhWindowEvent_t ();
event.rid = OS.PtWidgetRid (shellHandle);
event.event_f = maximized ? OS.Ph_WM_MAX : OS.Ph_WM_RESTORE;
OS.PtForwardWindowEvent (event);
}
}
public void setMenuBar (Menu menu) {
checkWidget();
if (menuBar == menu) return;
if (menu != null) {
if ((menu.style & SWT.BAR) == 0) error (SWT.ERROR_MENU_NOT_BAR);
if (menu.parent != this) error (SWT.ERROR_INVALID_PARENT);
}
if (menuBar != null) {
int menuHandle = menuBar.handle;
OS.PtSetResource (menuHandle, OS.Pt_ARG_FLAGS, OS.Pt_DELAY_REALIZE, OS.Pt_DELAY_REALIZE);
OS.PtUnrealizeWidget (menuBar.handle);
}
menuBar = menu;
int [] args = {OS.Pt_ARG_WIDTH, 0, 0, OS.Pt_ARG_HEIGHT, 0, 0};
OS.PtGetResources (shellHandle, args.length / 3, args);
int width = args [1], height = args [4];
if (menuBar != null) {
int menuHandle = menu.handle;
args = new int [] {
OS.Pt_ARG_WIDTH, width, 0,
OS.Pt_ARG_FLAGS, 0, OS.Pt_DELAY_REALIZE,
};
OS.PtSetResources (menuHandle, args.length / 3, args);
OS.PtRealizeWidget (menuHandle);
}
resizeBounds (width, height);
}
public void setMinimized (boolean minimized) {
checkWidget();
int bits = 0;
if (minimized) bits = OS.Ph_WM_STATE_ISICONIFIED;
OS.PtSetResource (shellHandle, OS.Pt_ARG_WINDOW_STATE, bits, OS.Ph_WM_STATE_ISICONIFIED);
if (OS.PtWidgetIsRealized (shellHandle)) {
PhWindowEvent_t event = new PhWindowEvent_t ();
event.rid = OS.PtWidgetRid (shellHandle);
event.event_f = OS.Ph_WM_HIDE;
event.event_state = (short) (minimized ? OS.Ph_WM_EVSTATE_HIDE : OS.Ph_WM_EVSTATE_UNHIDE);
OS.PtForwardWindowEvent (event);
}
}
/**
* Sets the receiver's modified state as specified by the argument.
*
* @param modified the new modified state for the receiver
*
* </ul>
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @since 3.5
*/
public void setModified (boolean modified) {
checkWidget ();
this.modified = modified;
}
/**
* Sets the shape of the shell to the region specified
* by the argument. When the argument is null, the
* default shape of the shell is restored. The shell
* must be created with the style SWT.NO_TRIM in order
* to specify a region.
*
* @param region the region that defines the shape of the shell (or null)
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_INVALID_ARGUMENT - if the region has been disposed</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @since 3.0
*
*/
public void setRegion (Region region) {
checkWidget ();
if ((style & SWT.NO_TRIM) == 0) return;
super.setRegion (region);
}
/**
* Sets the receiver's minimum size to the size specified by the arguments.
* If the new minimum size is larger than the current size of the receiver,
* the receiver is resized to the new minimum size.
*
* @param width the new minimum width for the receiver
* @param height the new minimum height for the receiver
*
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @since 3.1
*/
public void setMinimumSize (int width, int height) {
checkWidget();
int [] args = {OS.Pt_ARG_WINDOW_RENDER_FLAGS, 0, 0};
OS.PtGetResources (shellHandle, args.length / 3, args);
int flags = args [1];
int [] left = new int [1], top = new int [1];
int [] right = new int [1], bottom = new int [1];
OS.PtFrameSize (flags, 0, left, top, right, bottom);
width = Math.max (width - left [0] - right [0], 0);
height = Math.max (height - top [0] - bottom [0], 0);
args = new int [] {
OS.Pt_ARG_MIN_WIDTH, width, 0,
OS.Pt_ARG_MIN_HEIGHT, height, 0,
};
OS.PtSetResources (shellHandle, args.length / 3, args);
}
/**
* Sets the receiver's minimum size to the size specified by the argument.
* If the new minimum size is larger than the current size of the receiver,
* the receiver is resized to the new minimum size.
*
* @param size the new minimum size for the receiver
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the point is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @since 3.1
*/
public void setMinimumSize (Point size) {
checkWidget();
if (size == null) error (SWT.ERROR_NULL_ARGUMENT);
setMinimumSize (size.x, size.y);
}
public void setText (String string) {
checkWidget();
if (string == null) error (SWT.ERROR_NULL_ARGUMENT);
text = string;
byte [] buffer = Converter.wcsToMbcs (null, string, true);
int ptr = OS.malloc (buffer.length);
OS.memmove (ptr, buffer, buffer.length);
OS.PtSetResource (shellHandle, OS.Pt_ARG_WINDOW_TITLE, ptr, 0);
OS.free (ptr);
}
public void setVisible (boolean visible) {
checkWidget();
if (visible == OS.PtWidgetIsRealized (shellHandle)) return;
/*
* Feature in Photon. It is not possible to show a PtWindow
* whose parent is not realized. The fix is to temporarily
* reparent the child shell to NULL and then realize the child
* shell.
*/
if (parent != null) {
Shell shell = parent.getShell ();
int parentHandle = shell.shellHandle;
if (!OS.PtWidgetIsRealized (parentHandle)) {
OS.PtReParentWidget (shellHandle, visible ? OS.Pt_NO_PARENT : parentHandle);
}
}
if (visible) {
int mask = SWT.PRIMARY_MODAL | SWT.APPLICATION_MODAL | SWT.SYSTEM_MODAL;
switch (style & mask) {
case SWT.PRIMARY_MODAL:
if (parent != null) {
int parentHandle = parent.getShell ().shellHandle;
blockedList = OS.PtBlockWindow (parentHandle, (short) 0, 0);
}
break;
case SWT.APPLICATION_MODAL:
case SWT.SYSTEM_MODAL:
blockedList = OS.PtBlockAllWindows (shellHandle, (short) 0, 0);
break;
}
} else {
if (blockedList != 0) OS.PtUnblockWindows (blockedList);
blockedList = 0;
}
int flags = visible ? 0 : OS.Pt_DELAY_REALIZE;
OS.PtSetResource (shellHandle, OS.Pt_ARG_FLAGS, flags, OS.Pt_DELAY_REALIZE);
if (visible) {
sendEvent (SWT.Show);
if (isDisposed ()) return;
OS.PtRealizeWidget (shellHandle);
} else {
OS.PtUnrealizeWidget (shellHandle);
sendEvent(SWT.Hide);
if (isDisposed ()) return;
}
/*
* Feature in Photon. When a shell is shown, it may have child
* shells that have been temporarily reparented to NULL because
* the child was shown before the parent. The fix is to reparent
* the child shells back to the correct parent.
*/
if (visible) {
Shell [] shells = getShells ();
for (int i=0; i<shells.length; i++) {
int childHandle = shells [i].shellHandle;
if (OS.PtWidgetParent (childHandle) == 0) {
OS.PtReParentWidget (childHandle, shellHandle);
}
}
}
OS.PtSyncWidget (shellHandle);
OS.PtFlush ();
}
int topHandle () {
return shellHandle;
}
boolean traverseEscape () {
if (parent == null) return false;
if (!isVisible () || !isEnabled ()) return false;
close ();
return true;
}
}