org.eclipse.swt.widgets.Shell Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2000, 2021 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.widgets;
import org.eclipse.swt.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.internal.*;
import org.eclipse.swt.internal.win32.*;
/**
* 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
* Display as the argument) are described
* as top level shells. Instances that do have
* a parent are described as secondary or
* dialog shells.
*
* Instances are always displayed in one of the maximized,
* minimized or normal states:
*
* -
* When an instance is marked as maximized, 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
RESIZE) until it is
* no longer maximized.
* -
* When an instance is in the normal 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).
*
-
* When an instance has been marked as minimized,
* 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.
*
*
*
* The modality 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 PRIMARY_MODAL style allows an instance to block
* input to its parent. The APPLICATION_MODAL style
* allows an instance to block input to every other shell in the
* display. The SYSTEM_MODAL style allows an instance
* to block input to all shells, including shells belonging to
* different applications.
*
* Note: The styles supported by this class are treated
* as HINTs, 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 PRIMARY_MODAL is not supported,
* it would be upgraded to APPLICATION_MODAL.
* A modality style may also be "downgraded" to a less
* restrictive style. For example, most operating systems
* no longer support SYSTEM_MODAL because
* it can freeze up the desktop, so this is typically
* downgraded to APPLICATION_MODAL.
*
* - Styles:
* - BORDER, CLOSE, MIN, MAX, NO_MOVE, NO_TRIM, RESIZE, TITLE, ON_TOP, TOOL, SHEET
* - APPLICATION_MODAL, MODELESS, PRIMARY_MODAL, SYSTEM_MODAL
* - Events:
* - Activate, Close, Deactivate, Deiconify, Iconify
*
*
* Class SWT provides two "convenience constants"
* for the most commonly required style combinations:
*
* SHELL_TRIM-
* the result of combining the constants which are required
* to produce a typical application top level shell: (that
* is,
CLOSE | TITLE | MIN | MAX | RESIZE)
*
* DIALOG_TRIM-
* the result of combining the constants which are required
* to produce a typical application dialog shell: (that
* is,
TITLE | CLOSE | BORDER)
*
*
*
* Note: Only one of the styles APPLICATION_MODAL, MODELESS,
* PRIMARY_MODAL and SYSTEM_MODAL may be specified.
*
* IMPORTANT: This class is not intended to be subclassed.
*
*
* @see Decorations
* @see SWT
* @see Shell snippets
* @see SWT Example: ControlExample
* @see Sample code and further information
* @noextend This class is not intended to be subclassed by clients.
*/
public class Shell extends Decorations {
Menu activeMenu;
ToolTip [] toolTips;
long hwndMDIClient, lpstrTip, toolTipHandle, balloonTipHandle, menuItemToolTipHandle;
int minWidth = SWT.DEFAULT, minHeight = SWT.DEFAULT, maxWidth = SWT.DEFAULT, maxHeight = SWT.DEFAULT;
long [] brushes;
boolean showWithParent, fullScreen, wasMaximized, modified, center;
String toolTitle, balloonTitle;
long toolIcon, balloonIcon;
long windowProc;
Control lastActive;
static /*final*/ long ToolTipProc;
static final long DialogProc;
static final TCHAR DialogClass = new TCHAR (0, "#32770", true);
final static int [] SYSTEM_COLORS = {
OS.COLOR_BTNFACE,
OS.COLOR_WINDOW,
OS.COLOR_BTNTEXT,
OS.COLOR_WINDOWTEXT,
OS.COLOR_HIGHLIGHT,
OS.COLOR_SCROLLBAR,
};
final static int BRUSHES_SIZE = 32;
static {
WNDCLASS lpWndClass = new WNDCLASS ();
OS.GetClassInfo (0, DialogClass, lpWndClass);
DialogProc = lpWndClass.lpfnWndProc;
DPIZoomChangeRegistry.registerHandler(Shell::handleDPIChange, Shell.class);
}
/**
* Constructs a new instance of this class. This is equivalent
* to calling Shell((Display) null).
*
* @exception SWTException
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent
* - ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass
*
*/
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 Shell((Display) null, style).
*
* The style value is either one of the style constants defined in
* class SWT which is applicable to instances of this
* class, or must be built by bitwise OR'ing together
* (that is, using the int "|" operator) two or more
* of those SWT style constants. The class description
* lists the style constants that are applicable to the class.
* Style bits are also inherited from superclasses.
*
*
* @param style the style of control to construct
*
* @exception SWTException
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent
* - ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass
*
*
* @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#NO_MOVE
* @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 SWT.SHELL_TRIM.
*
* 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. 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.
*
*
* @param display the display to create the shell on
*
* @exception SWTException
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent
* - ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass
*
*/
public Shell (Display display) {
this (display, SWT.SHELL_TRIM);
}
/**
* Constructs a new instance of this class given the display
* to create it on and a style value describing its behavior
* and appearance.
*
* The style value is either one of the style constants defined in
* class SWT which is applicable to instances of this
* class, or must be built by bitwise OR'ing together
* (that is, using the int "|" operator) two or more
* of those SWT style constants. The class description
* lists the style constants that are applicable to the class.
* Style bits are also inherited from superclasses.
*
* 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. 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.
*
*
* @param display the display to create the shell on
* @param style the style of control to construct
*
* @exception SWTException
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent
* - ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass
*
*
* @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#NO_MOVE
* @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, false);
}
Shell (Display display, Shell parent, int style, long handle, boolean embedded) {
super ();
checkSubclass ();
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.center = parent != null && (style & SWT.SHEET) != 0;
this.style = checkStyle (parent, style);
this.parent = parent;
this.display = display;
this.handle = handle;
if (handle != 0 && !embedded) {
state |= FOREIGN_HANDLE;
}
int shellNativeZoom;
if (parent != null) {
shellNativeZoom = parent.nativeZoom;
} else {
int mappedDPIZoom = getMonitor().getZoom();
shellNativeZoom = mappedDPIZoom;
}
this.nativeZoom = shellNativeZoom;
reskinWidget();
createWidget ();
}
/**
* Constructs a new instance of this class given only its
* parent. It is created with style SWT.DIALOG_TRIM.
*
* 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. 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.
*
*
* @param parent a shell which will be the parent of the new instance
*
* @exception IllegalArgumentException
* - ERROR_INVALID_ARGUMENT - if the parent is disposed
*
* @exception SWTException
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent
* - ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass
*
*/
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.
*
* The style value is either one of the style constants defined in
* class SWT which is applicable to instances of this
* class, or must be built by bitwise OR'ing together
* (that is, using the int "|" operator) two or more
* of those SWT style constants. The class description
* lists the style constants that are applicable to the class.
* Style bits are also inherited from superclasses.
*
* 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. 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.
*
*
* @param parent a shell which will be the parent of the new instance
* @param style the style of control to construct
*
* @exception IllegalArgumentException
* - ERROR_INVALID_ARGUMENT - if the parent is disposed
*
* @exception SWTException
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent
* - ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass
*
*
* @see SWT#BORDER
* @see SWT#CLOSE
* @see SWT#MIN
* @see SWT#MAX
* @see SWT#RESIZE
* @see SWT#TITLE
* @see SWT#NO_TRIM
* @see SWT#NO_MOVE
* @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, false);
}
/**
* Invokes platform specific functionality to allocate a new shell
* that is embedded.
*
* IMPORTANT: This method is not part of the public
* API for Shell. It is marked public only so that it
* can be shared within the packages provided by SWT. It is not
* available on all platforms, and should never be called from
* application code.
*
*
* @param display the display for the shell
* @param handle the handle for the shell
* @return a new shell object containing the specified display and handle
*
* @noreference This method is not intended to be referenced by clients.
*/
public static Shell win32_new (Display display, long handle) {
return new Shell (display, null, SWT.NO_TRIM, handle, true);
}
/**
* Invokes platform specific functionality to allocate a new shell
* that is not embedded.
*
* IMPORTANT: This method is not part of the public
* API for Shell. It is marked public only so that it
* can be shared within the packages provided by SWT. It is not
* available on all platforms, and should never be called from
* application code.
*
*
* @param display the display for the shell
* @param handle the handle for the shell
* @return a new shell object containing the specified display and handle
*
* @noreference This method is not intended to be referenced by clients.
*
* @since 3.3
*/
public static Shell internal_new (Display display, long handle) {
return new Shell (display, null, SWT.NO_TRIM, handle, false);
}
static int checkStyle (Shell parent, int style) {
style = Decorations.checkStyle (style);
style &= ~SWT.TRANSPARENT;
int mask = SWT.SYSTEM_MODAL | SWT.APPLICATION_MODAL | SWT.PRIMARY_MODAL;
if ((style & SWT.SHEET) != 0) {
style &= ~SWT.SHEET;
style |= parent == null ? SWT.SHELL_TRIM : SWT.DIALOG_TRIM;
if ((style & mask) == 0) {
style |= parent == null ? 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;
}
/**
* 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
* ShellListener interface.
*
* @param listener the listener which should be notified
*
* @exception IllegalArgumentException
* - ERROR_NULL_ARGUMENT - if the listener is null
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see ShellListener
* @see #removeShellListener
*/
public void addShellListener (ShellListener listener) {
addTypedListener(listener, SWT.Close, SWT.Iconify, SWT.Deiconify, SWT.Activate, SWT.Deactivate);
}
long balloonTipHandle () {
if (balloonTipHandle == 0) createBalloonTipHandle ();
return balloonTipHandle;
}
@Override
long callWindowProc (long hwnd, int msg, long wParam, long lParam) {
if (handle == 0) return 0;
if (hwnd == toolTipHandle || hwnd == balloonTipHandle || hwnd == menuItemToolTipHandle) {
return OS.CallWindowProc (ToolTipProc, hwnd, msg, wParam, lParam);
}
if (hwndMDIClient != 0) {
return OS.DefFrameProc (hwnd, hwndMDIClient, msg, wParam, lParam);
}
if (windowProc != 0) {
return OS.CallWindowProc (windowProc, hwnd, msg, wParam, lParam);
}
if ((style & SWT.TOOL) != 0) {
int trim = SWT.TITLE | SWT.CLOSE | SWT.MIN | SWT.MAX | SWT.BORDER | SWT.RESIZE;
if ((style & trim) == 0) return OS.DefWindowProc (hwnd, msg, wParam, lParam);
}
if ((style & SWT.NO_MOVE) != 0) {
setItemEnabled (OS.SC_MOVE, false);
}
if (parent != null) {
switch (msg) {
case OS.WM_KILLFOCUS:
case OS.WM_SETFOCUS:
return OS.DefWindowProc (hwnd, msg, wParam, lParam);
}
return OS.CallWindowProc (DialogProc, hwnd, msg, wParam, lParam);
}
return OS.DefWindowProc (hwnd, msg, wParam, lParam);
}
void center () {
if (parent == null) return;
Rectangle rect = getBoundsInPixels ();
Rectangle parentRect = display.mapInPixels (parent, null, parent.getClientAreaInPixels());
int x = Math.max (parentRect.x, parentRect.x + (parentRect.width - rect.width) / 2);
int y = Math.max (parentRect.y, parentRect.y + (parentRect.height - rect.height) / 2);
Rectangle monitorRect = parent.getMonitor ().getClientArea();
if (x + rect.width > monitorRect.x + monitorRect.width) {
x = Math.max (monitorRect.x, monitorRect.x + monitorRect.width - rect.width);
} else {
x = Math.max (x, monitorRect.x);
}
if (y + rect.height > monitorRect.y + monitorRect.height) {
y = Math.max (monitorRect.y, monitorRect.y + monitorRect.height - rect.height);
} else {
y = Math.max (y, monitorRect.y);
}
setLocationInPixels (x, y);
}
/**
* 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
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see SWT#Close
* @see #dispose
*/
public void close () {
checkWidget ();
closeWidget ();
}
void createBalloonTipHandle () {
balloonTipHandle = OS.CreateWindowEx (
0,
new TCHAR (0, OS.TOOLTIPS_CLASS, true),
null,
OS.TTS_ALWAYSTIP | OS.TTS_NOPREFIX | OS.TTS_BALLOON,
OS.CW_USEDEFAULT, 0, OS.CW_USEDEFAULT, 0,
handle,
0,
OS.GetModuleHandle (null),
null);
if (balloonTipHandle == 0) error (SWT.ERROR_NO_HANDLES);
if (ToolTipProc == 0) {
ToolTipProc = OS.GetWindowLongPtr (balloonTipHandle, OS.GWLP_WNDPROC);
}
/*
* Feature in Windows. Despite the fact that the
* tool tip text contains \r\n, the tooltip will
* not honour the new line unless TTM_SETMAXTIPWIDTH
* is set. The fix is to set TTM_SETMAXTIPWIDTH to
* a large value.
*/
OS.SendMessage (balloonTipHandle, OS.TTM_SETMAXTIPWIDTH, 0, 0x7FFF);
display.addControl (balloonTipHandle, this);
OS.SetWindowLongPtr (balloonTipHandle, OS.GWLP_WNDPROC, display.windowProc);
}
void setTitleColoring() {
int attributeID = 0;
if (OS.WIN32_BUILD >= OS.WIN32_BUILD_WIN10_2004) {
// Documented since build 20348, but was already present since build 19041
final int DWMWA_USE_IMMERSIVE_DARK_MODE = 20;
attributeID = DWMWA_USE_IMMERSIVE_DARK_MODE;
} else if (OS.WIN32_BUILD >= OS.WIN32_BUILD_WIN10_1809) {
// Undocumented value
attributeID = 19;
} else {
// Not supported
return;
}
int[] value = new int[] {1};
OS.DwmSetWindowAttribute (handle, attributeID, value, 4);
}
@Override
void createHandle () {
boolean embedded = handle != 0 && (state & FOREIGN_HANDLE) == 0;
/*
* On Windows 98 and NT, setting a window to be the
* top most window using HWND_TOPMOST can result in a
* parent dialog shell being moved behind its parent
* if the dialog has a sibling that is currently on top
* This only occurs using SetWindowPos (), not when the
* handle is created.
*/
/*
* The following code is intentionally commented.
*/
// if ((style & SWT.ON_TOP) != 0) display.lockActiveWindow = true;
if (handle == 0 || embedded) {
super.createHandle ();
} else {
state |= CANVAS;
if ((style & (SWT.H_SCROLL | SWT.V_SCROLL)) == 0) {
state |= THEME_BACKGROUND;
}
windowProc = OS.GetWindowLongPtr (handle, OS.GWL_WNDPROC);
}
/*
* The following code is intentionally commented.
*/
// if ((style & SWT.ON_TOP) != 0) display.lockActiveWindow = false;
if (!embedded) {
if (display.useShellTitleColoring) {
setTitleColoring();
}
int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
bits &= ~(OS.WS_OVERLAPPED | OS.WS_CAPTION);
bits |= OS.WS_POPUP;
if ((style & SWT.TITLE) != 0) bits |= OS.WS_CAPTION;
if ((style & SWT.NO_TRIM) == 0) {
if ((style & (SWT.BORDER | SWT.RESIZE)) == 0) bits |= OS.WS_BORDER;
}
/*
* Bug in Windows. When the WS_CAPTION bits are cleared using
* SetWindowLong(), Windows does not resize the client area of
* the window to get rid of the caption until the first resize.
* The fix is to use SetWindowPos() with SWP_DRAWFRAME to force
* the frame to be redrawn and resized.
*/
OS.SetWindowLong (handle, OS.GWL_STYLE, bits);
int flags = OS.SWP_DRAWFRAME | OS.SWP_NOMOVE | OS.SWP_NOSIZE | OS.SWP_NOZORDER | OS.SWP_NOACTIVATE;
OS.SetWindowPos (handle, 0, 0, 0, 0, 0, flags);
}
}
void createMenuItemToolTipHandle() {
menuItemToolTipHandle = createToolTipHandle (0);
}
void createToolTip (ToolTip toolTip) {
int id = 0;
if (toolTips == null) toolTips = new ToolTip [4];
while (id < toolTips.length && toolTips [id] != null) id++;
if (id == toolTips.length) {
ToolTip [] newToolTips = new ToolTip [toolTips.length + 4];
System.arraycopy (toolTips, 0, newToolTips, 0, toolTips.length);
toolTips = newToolTips;
}
toolTips [id] = toolTip;
toolTip.id = id + Display.ID_START;
TOOLINFO lpti = new TOOLINFO ();
lpti.cbSize = TOOLINFO.sizeof;
lpti.hwnd = handle;
lpti.uId = toolTip.id;
lpti.uFlags = OS.TTF_TRACK;
lpti.lpszText = OS.LPSTR_TEXTCALLBACK;
OS.SendMessage (toolTip.hwndToolTip (), OS.TTM_ADDTOOL, 0, lpti);
}
void createToolTipHandle () {
toolTipHandle = createToolTipHandle (handle);
}
long createToolTipHandle (long parent) {
long toolTipHandle = OS.CreateWindowEx (
0,
new TCHAR (0, OS.TOOLTIPS_CLASS, true),
null,
OS.TTS_ALWAYSTIP | OS.TTS_NOPREFIX,
OS.CW_USEDEFAULT, 0, OS.CW_USEDEFAULT, 0,
parent,
0,
OS.GetModuleHandle (null),
null);
if (toolTipHandle == 0) error (SWT.ERROR_NO_HANDLES);
if (ToolTipProc == 0) {
ToolTipProc = OS.GetWindowLongPtr (toolTipHandle, OS.GWLP_WNDPROC);
}
/*
* Feature in Windows. Despite the fact that the
* tool tip text contains \r\n, the tooltip will
* not honour the new line unless TTM_SETMAXTIPWIDTH
* is set. The fix is to set TTM_SETMAXTIPWIDTH to
* a large value.
*/
OS.SendMessage (toolTipHandle, OS.TTM_SETMAXTIPWIDTH, 0, 0x7FFF);
display.addControl (toolTipHandle, this);
OS.SetWindowLongPtr (toolTipHandle, OS.GWLP_WNDPROC, display.windowProc);
return toolTipHandle;
}
@Override
void deregister () {
super.deregister ();
if (toolTipHandle != 0) display.removeControl (toolTipHandle);
if (balloonTipHandle != 0) display.removeControl (balloonTipHandle);
if (menuItemToolTipHandle != 0) display.removeControl (menuItemToolTipHandle);
}
void destroyToolTip (ToolTip toolTip) {
if (toolTips == null) return;
toolTips [toolTip.id - Display.ID_START] = null;
if (balloonTipHandle != 0) {
TOOLINFO lpti = new TOOLINFO ();
lpti.cbSize = TOOLINFO.sizeof;
lpti.uId = toolTip.id;
lpti.hwnd = handle;
OS.SendMessage (balloonTipHandle, OS.TTM_DELTOOL, 0, lpti);
}
toolTip.id = -1;
}
@Override
void destroyWidget () {
fixActiveShell ();
super.destroyWidget ();
}
@Override
void enableWidget (boolean enabled) {
if (enabled) {
state &= ~DISABLED;
} else {
state |= DISABLED;
}
if (Display.TrimEnabled) {
if (isActive ()) setItemEnabled (OS.SC_CLOSE, enabled);
} else {
OS.EnableWindow (handle, enabled);
}
}
@Override
long findBrush (long value, int lbStyle) {
if (lbStyle == OS.BS_SOLID) {
for (int element : SYSTEM_COLORS) {
if (value == OS.GetSysColor (element)) {
return OS.GetSysColorBrush (element);
}
}
}
if (brushes == null) brushes = new long [BRUSHES_SIZE];
LOGBRUSH logBrush = new LOGBRUSH ();
for (long hBrush : brushes) {
if (hBrush == 0) break;
OS.GetObject (hBrush, LOGBRUSH.sizeof, logBrush);
switch (logBrush.lbStyle) {
case OS.BS_SOLID:
if (lbStyle == OS.BS_SOLID) {
if (logBrush.lbColor == value) return hBrush;
}
break;
case OS.BS_PATTERN:
if (lbStyle == OS.BS_PATTERN) {
if (logBrush.lbHatch == value) return hBrush;
}
break;
}
}
int length = brushes.length;
long hBrush = brushes [--length];
if (hBrush != 0) OS.DeleteObject (hBrush);
System.arraycopy (brushes, 0, brushes, 1, length);
switch (lbStyle) {
case OS.BS_SOLID:
hBrush = OS.CreateSolidBrush ((int)value);
break;
case OS.BS_PATTERN:
hBrush = OS.CreatePatternBrush (value);
break;
}
return brushes [0] = hBrush;
}
@Override
Control findBackgroundControl () {
return background != -1 || backgroundImage != null ? this : null;
}
@Override
Cursor findCursor () {
return cursor;
}
@Override
Control findThemeControl () {
return null;
}
ToolTip findToolTip (int id) {
if (toolTips == null) return null;
id = id - Display.ID_START;
return 0 <= id && id < toolTips.length ? toolTips [id] : null;
}
void fixActiveShell () {
/*
* Feature in Windows. When the active shell is disposed
* or hidden, Windows normally makes the parent shell active
* and assigns focus. This does not happen when the parent
* shell is disabled. Instead, Windows assigns focus to the
* next shell on the desktop (possibly a shell in another
* application). The fix is to activate the disabled parent
* shell before disposing or hiding the active shell.
*/
long hwndParent = OS.GetParent (handle);
if (hwndParent != 0 && handle == OS.GetActiveWindow ()) {
if (!OS.IsWindowEnabled (hwndParent) && OS.IsWindowVisible (hwndParent)) {
OS.SetActiveWindow (hwndParent);
}
}
}
void fixShell (Shell newShell, Control control) {
if (this == newShell) return;
if (control == lastActive) setActiveControl (null);
String toolTipText = control.toolTipText;
if (toolTipText != null) {
control.setToolTipText (this, null);
control.setToolTipText (newShell, toolTipText);
}
}
void fixToolTip () {
/*
* Bug in Windows. On XP, when a tooltip is
* hidden due to a time out or mouse press,
* the tooltip remains active although no
* longer visible and won't show again until
* another tooltip becomes active. If there
* is only one tooltip in the window, it will
* never show again. The fix is to remove the
* current tooltip and add it again every time
* the mouse leaves the control.
*/
if (toolTipHandle == 0) return;
TOOLINFO lpti = new TOOLINFO ();
lpti.cbSize = TOOLINFO.sizeof;
if (OS.SendMessage (toolTipHandle, OS.TTM_GETCURRENTTOOL, 0, lpti) != 0) {
if ((lpti.uFlags & OS.TTF_IDISHWND) != 0) {
OS.SendMessage (toolTipHandle, OS.TTM_DELTOOL, 0, lpti);
OS.SendMessage (toolTipHandle, OS.TTM_ADDTOOL, 0, lpti);
}
}
TOOLINFO lptiMt = new TOOLINFO ();
lptiMt.cbSize = TOOLINFO.sizeof;
if (OS.SendMessage (menuItemToolTipHandle, OS.TTM_GETCURRENTTOOL, 0, lptiMt) != 0) {
if ((lptiMt.uFlags & OS.TTF_IDISHWND) != 0) {
OS.SendMessage (menuItemToolTipHandle, OS.TTM_DELTOOL, 0, lptiMt);
OS.SendMessage (menuItemToolTipHandle, OS.TTM_ADDTOOL, 0, lptiMt);
}
}
}
/**
* 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
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @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 ();
if(!isVisible()) return;
OS.SetForegroundWindow (handle);
}
@Override
void forceResize () {
/* Do nothing */
}
/**
* Returns the receiver's alpha value. The alpha value
* is between 0 (transparent) and 255 (opaque).
*
* @return the alpha value
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.4
*/
public int getAlpha () {
checkWidget ();
byte [] pbAlpha = new byte [1];
if (OS.GetLayeredWindowAttributes (handle, null, pbAlpha, null)) {
return pbAlpha [0] & 0xFF;
}
return 0xFF;
}
@Override Rectangle getBoundsInPixels () {
if (OS.IsIconic (handle)) return super.getBoundsInPixels ();
RECT rect = new RECT ();
OS.GetWindowRect (handle, rect);
int width = rect.right - rect.left;
int height = rect.bottom - rect.top;
return new Rectangle (rect.left, rect.top, width, height);
}
ToolTip getCurrentToolTip () {
if (toolTipHandle != 0) {
ToolTip tip = getCurrentToolTip (toolTipHandle);
if (tip != null) return tip;
}
if (balloonTipHandle != 0) {
ToolTip tip = getCurrentToolTip (balloonTipHandle);
if (tip != null) return tip;
}
if (menuItemToolTipHandle != 0) {
ToolTip tip = getCurrentToolTip (menuItemToolTipHandle);
if (tip != null) return tip;
}
return null;
}
ToolTip getCurrentToolTip (long hwndToolTip) {
if (hwndToolTip == 0) return null;
if (OS.SendMessage (hwndToolTip, OS.TTM_GETCURRENTTOOL, 0, 0) != 0) {
TOOLINFO lpti = new TOOLINFO ();
lpti.cbSize = TOOLINFO.sizeof;
if (OS.SendMessage (hwndToolTip, OS.TTM_GETCURRENTTOOL, 0, lpti) != 0) {
if ((lpti.uFlags & OS.TTF_IDISHWND) == 0) return findToolTip ((int)lpti.uId);
}
}
return null;
}
@Override
public boolean getEnabled () {
checkWidget ();
return (state & DISABLED) == 0;
}
/**
* Returns true if the receiver is currently
* in fullscreen state, and false otherwise.
*
* @return the fullscreen state
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.4
*/
public boolean getFullScreen () {
checkWidget();
return fullScreen;
}
/**
* 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
* SWT:
* NONE, ROMAN, DBCS,
* PHONETIC, NATIVE, ALPHA.
*
* @return the IME mode
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see SWT
*/
public int getImeInputMode () {
checkWidget ();
if (!OS.IsDBLocale) return 0;
long hIMC = OS.ImmGetContext (handle);
int [] lpfdwConversion = new int [1], lpfdwSentence = new int [1];
boolean open = OS.ImmGetOpenStatus (hIMC);
if (open) open = OS.ImmGetConversionStatus (hIMC, lpfdwConversion, lpfdwSentence);
OS.ImmReleaseContext (handle, hIMC);
if (!open) return SWT.NONE;
int result = 0;
if ((lpfdwConversion [0] & OS.IME_CMODE_ROMAN) != 0) result |= SWT.ROMAN;
if ((lpfdwConversion [0] & OS.IME_CMODE_FULLSHAPE) != 0) result |= SWT.DBCS;
if ((lpfdwConversion [0] & OS.IME_CMODE_KATAKANA) != 0) return result | SWT.PHONETIC;
if ((lpfdwConversion [0] & OS.IME_CMODE_NATIVE) != 0) return result | SWT.NATIVE;
return result | SWT.ALPHA;
}
@Override Point getLocationInPixels () {
if (OS.IsIconic (handle)) return super.getLocationInPixels ();
RECT rect = new RECT ();
OS.GetWindowRect (handle, rect);
return new Point (rect.left, rect.top);
}
@Override
public boolean getMaximized () {
checkWidget ();
return !fullScreen && super.getMaximized ();
}
/**
* Returns a point describing the maximum receiver's size. The
* x coordinate of the result is the maximum width of the receiver.
* The y coordinate of the result is the maximum height of the
* receiver.
*
* @return the receiver's size
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.116
*/
public Point getMaximumSize () {
checkWidget ();
return DPIUtil.scaleDown(getMaximumSizeInPixels(), getZoom());
}
Point getMaximumSizeInPixels () {
int width = Math.min (Integer.MAX_VALUE, maxWidth);
int trim = SWT.TITLE | SWT.CLOSE | SWT.MIN | SWT.MAX;
if ((style & SWT.NO_TRIM) == 0 && (style & trim) != 0) {
width = Math.min (width, getSystemMetrics (OS.SM_CXMAXTRACK));
}
int height = Math.min (Integer.MAX_VALUE, maxHeight);
if ((style & SWT.NO_TRIM) == 0 && (style & trim) != 0) {
if ((style & SWT.RESIZE) != 0) {
height = Math.min (height, getSystemMetrics (OS.SM_CYMAXTRACK));
} else {
RECT rect = new RECT ();
int bits1 = OS.GetWindowLong (handle, OS.GWL_STYLE);
int bits2 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE);
OS.AdjustWindowRectEx (rect, bits1, false, bits2);
height = Math.min (height, rect.bottom - rect.top);
}
}
return new Point (width, height);
}
/**
* 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
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.1
*/
public Point getMinimumSize () {
checkWidget ();
return DPIUtil.scaleDown(getMinimumSizeInPixels(), getZoom());
}
Point getMinimumSizeInPixels () {
int width = Math.max (0, minWidth);
int trim = SWT.TITLE | SWT.CLOSE | SWT.MIN | SWT.MAX;
if ((style & SWT.NO_TRIM) == 0 && (style & trim) != 0) {
width = Math.max (width, getSystemMetrics (OS.SM_CXMINTRACK));
}
int height = Math.max (0, minHeight);
if ((style & SWT.NO_TRIM) == 0 && (style & trim) != 0) {
if ((style & SWT.RESIZE) != 0) {
height = Math.max (height, getSystemMetrics (OS.SM_CYMINTRACK));
} else {
RECT rect = new RECT ();
int bits1 = OS.GetWindowLong (handle, OS.GWL_STYLE);
int bits2 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE);
OS.AdjustWindowRectEx (rect, bits1, false, bits2);
height = Math.max (height, rect.bottom - rect.top);
}
}
return new Point (width, height);
}
/**
* Gets the receiver's modified state.
*
* @return true if the receiver is marked as modified, or false otherwise
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.5
*/
public boolean getModified () {
checkWidget ();
return modified;
}
/**
* Returns the region that defines the shape of the shell,
* or null if the shell has the default shape.
*
* @return the region that defines the shape of the shell, or null
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.0
*/
@Override
public Region getRegion () {
/* This method is needed for the @since 3.0 Javadoc */
checkWidget ();
return region;
}
@Override
public Shell getShell () {
checkWidget ();
return this;
}
@Override Point getSizeInPixels () {
if (OS.IsIconic (handle)) return super.getSizeInPixels ();
RECT rect = new RECT ();
OS.GetWindowRect (handle, rect);
int width = rect.right - rect.left;
int height = rect.bottom - rect.top;
return new Point (width, height);
}
/**
* Returns an array containing all shells which are
* descendants of the receiver.
*
* @return the dialog shells
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*/
public Shell [] getShells () {
checkWidget ();
int count = 0;
Shell [] shells = display.getShells ();
for (Shell activeshell : shells) {
Control shell = activeshell;
do {
shell = shell.getParent ();
} while (shell != null && shell != this);
if (shell == this) count++;
}
int index = 0;
Shell [] result = new Shell [count];
for (Shell activeshell : shells) {
Control shell = activeshell;
do {
shell = shell.getParent ();
} while (shell != null && shell != this);
if (shell == this) {
result [index++] = activeshell;
}
}
return result;
}
/**
* Returns a ToolBar object representing the tool bar that can be shown in the receiver's
* trim. This will return null 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.
*
* @return a ToolBar object representing the Shell's tool bar, or null.
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.7
*/
public ToolBar getToolBar() {
checkWidget ();
return null;
}
@Override
Composite findDeferredControl () {
return layoutCount > 0 ? this : null;
}
@Override
public boolean isEnabled () {
checkWidget ();
return getEnabled ();
}
@Override
public boolean isVisible () {
checkWidget ();
return getVisible ();
}
long hwndMDIClient () {
if (hwndMDIClient == 0) {
int widgetStyle = OS.MDIS_ALLCHILDSTYLES | OS.WS_CHILD | OS.WS_CLIPCHILDREN | OS.WS_CLIPSIBLINGS;
hwndMDIClient = OS.CreateWindowEx (
0,
new TCHAR (0, "MDICLIENT", true),
null,
widgetStyle,
0, 0, 0, 0,
handle,
0,
OS.GetModuleHandle (null),
new CREATESTRUCT ());
// OS.ShowWindow (hwndMDIClient, OS.SW_SHOW);
}
return hwndMDIClient;
}
long menuItemToolTipHandle () {
if (menuItemToolTipHandle == 0) createMenuItemToolTipHandle ();
return menuItemToolTipHandle;
}
/**
* 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
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @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 ();
STARTUPINFO lpStartUpInfo = Display.lpStartupInfo;
if (lpStartUpInfo == null || (lpStartUpInfo.dwFlags & OS.STARTF_USESHOWWINDOW) == 0) {
bringToTop ();
if (isDisposed ()) return;
}
OS.SendMessage (handle, OS.WM_CHANGEUISTATE, OS.UIS_INITIALIZE, 0);
setVisible (true);
if (isDisposed ()) return;
/*
* Bug in Windows XP. Despite the fact that an icon has been
* set for a window, the task bar displays the wrong icon the
* first time the window is made visible with ShowWindow() after
* a call to BringToTop(), when a long time elapses between the
* ShowWindow() and the time the event queue is read. The icon
* in the window trimming is correct but the one in the task
* bar does not get updated. The fix is to call PeekMessage()
* with the flag PM_NOREMOVE and PM_QS_SENDMESSAGE to respond
* to a cross thread WM_GETICON.
*
* NOTE: This allows other cross thread messages to be delivered,
* most notably WM_ACTIVATE.
*/
MSG msg = new MSG ();
int flags = OS.PM_NOREMOVE | OS.PM_NOYIELD | OS.PM_QS_SENDMESSAGE;
OS.PeekMessage (msg, 0, 0, 0, flags);
/*
* When no widget has been given focus, or another push button has focus,
* give focus to the default button. This avoids overriding the default
* button.
*/
boolean restored = restoreFocus ();
if (!restored) {
restored = traverseGroup (true);
}
if (restored) {
Control focusControl = display.getFocusControl ();
if (focusControl instanceof Button && (focusControl.style & SWT.PUSH) != 0) {
restored = false;
}
}
if (!restored) {
if (saveDefault != null && !saveDefault.isDisposed ()) {
saveDefault.setFocus ();
} else {
setFocus ();
}
}
}
@Override
public boolean print (GC gc) {
checkWidget ();
if (gc == null) error (SWT.ERROR_NULL_ARGUMENT);
if (gc.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT);
return false;
}
@Override
void register () {
super.register ();
if (toolTipHandle != 0) display.addControl (toolTipHandle, this);
if (balloonTipHandle != 0) display.addControl (balloonTipHandle, this);
if (menuItemToolTipHandle != 0) display.addControl (menuItemToolTipHandle, this);
}
void releaseBrushes () {
if (brushes != null) {
for (long brush : brushes) {
if (brush != 0) OS.DeleteObject (brush);
}
}
brushes = null;
}
@Override
void releaseChildren (boolean destroy) {
for (Shell shell : getShells ()) {
if (shell != null && !shell.isDisposed ()) {
shell.release (false);
}
}
if (toolTips != null) {
for (ToolTip toolTip : toolTips) {
if (toolTip != null && !toolTip.isDisposed ()) {
toolTip.release (false);
}
}
}
toolTips = null;
super.releaseChildren (destroy);
}
@Override
void releaseHandle () {
super.releaseHandle ();
hwndMDIClient = 0;
}
@Override
void releaseParent () {
/* Do nothing */
}
@Override
void releaseWidget () {
super.releaseWidget ();
releaseBrushes ();
activeMenu = null;
display.clearModal (this);
if (lpstrTip != 0) {
long hHeap = OS.GetProcessHeap ();
OS.HeapFree (hHeap, 0, lpstrTip);
}
lpstrTip = 0;
toolTipHandle = balloonTipHandle = menuItemToolTipHandle = 0;
lastActive = null;
toolTitle = balloonTitle = null;
}
@Override
void removeMenu (Menu menu) {
super.removeMenu (menu);
if (menu == activeMenu) activeMenu = 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
* - ERROR_NULL_ARGUMENT - if the listener is null
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @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);
}
@Override
public void requestLayout () {
layout (null, SWT.DEFER);
}
@Override
void reskinChildren (int flags) {
for (Shell shell : getShells ()) {
if (shell != null) shell.reskin (flags);
}
if (toolTips != null) {
for (ToolTip toolTip : toolTips) {
if (toolTip != null) toolTip.reskin (flags);
}
}
super.reskinChildren (flags);
}
@Override
boolean sendKeyEvent (int type, int msg, long wParam, long lParam, Event event) {
if (!isEnabled () || !isActive ()) return false;
return super.sendKeyEvent (type, msg, wParam, lParam, event);
}
/**
* 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
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @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 ();
if (!isVisible ()) return;
bringToTop ();
// widget could be disposed at this point
}
void setActiveControl (Control control) {
setActiveControl (control, SWT.None);
}
void setActiveControl (Control control, int type) {
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 ()) {
Event event = new Event ();
event.detail = type;
activate [i].sendEvent (SWT.Activate, event);
}
}
}
/**
* Sets the receiver's alpha value which must be
* between 0 (transparent) and 255 (opaque).
*
* This operation requires the operating system's advanced
* widgets subsystem which may not be available on some
* platforms.
*
* @param alpha the alpha value
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.4
*/
public void setAlpha (int alpha) {
checkWidget ();
alpha &= 0xFF;
int bits = OS.GetWindowLong (handle, OS.GWL_EXSTYLE);
if (alpha == 0xFF) {
OS.SetWindowLong (handle, OS.GWL_EXSTYLE, bits & ~OS.WS_EX_LAYERED);
int flags = OS.RDW_ERASE | OS.RDW_INVALIDATE | OS.RDW_FRAME | OS.RDW_ALLCHILDREN;
OS.RedrawWindow (handle, null, 0, flags);
} else {
OS.SetWindowLong (handle, OS.GWL_EXSTYLE, bits | OS.WS_EX_LAYERED);
OS.SetLayeredWindowAttributes (handle, 0, (byte)alpha, OS.LWA_ALPHA);
}
}
@Override
public Rectangle getBounds() {
if (getDisplay().isRescalingAtRuntime()) {
Rectangle boundsInPixels = getBoundsInPixels();
return display.translateRectangleInPointsInDisplayCoordinateSystemByContainment(boundsInPixels.x, boundsInPixels.y, boundsInPixels.width, boundsInPixels.height);
}
return super.getBounds();
}
@Override
public Point getLocation() {
if (getDisplay().isRescalingAtRuntime()) {
Point locationInPixels = getLocationInPixels();
return display.translateLocationInPointInDisplayCoordinateSystem(locationInPixels.x, locationInPixels.y);
}
return super.getLocation();
}
@Override
public void setLocation(Point location) {
if (location == null) error (SWT.ERROR_NULL_ARGUMENT);
setLocation(location.x, location.y);
}
@Override
public void setLocation(int x, int y) {
if (getDisplay().isRescalingAtRuntime()) {
Point location = display.translateLocationInPixelsInDisplayCoordinateSystem(x, y);
setLocationInPixels(location.x, location.y);
} else {
super.setLocation(x, y);
}
}
@Override
public void setBounds(Rectangle rect) {
if (rect == null) error (SWT.ERROR_NULL_ARGUMENT);
setBounds(rect.x, rect.y, rect.width, rect.height);
}
@Override
public void setBounds(int x, int y, int width, int height) {
if (getDisplay().isRescalingAtRuntime()) {
Rectangle boundsInPixels = display.translateRectangleInPixelsInDisplayCoordinateSystemByContainment(x, y, width, height);
setBoundsInPixels(boundsInPixels.x, boundsInPixels.y, boundsInPixels.width, boundsInPixels.height);
} else {
super.setBounds(x, y, width, height);
}
}
@Override
void setBoundsInPixels (int x, int y, int width, int height, int flags, boolean defer) {
if (fullScreen) setFullScreen (false);
/*
* Bug in Windows. When a window has alpha and
* SetWindowPos() is called with SWP_DRAWFRAME,
* the contents of the window are copied rather
* than allowing the windows underneath to draw.
* This causes pixel corruption. The fix is to
* clear the SWP_DRAWFRAME bits.
*/
int bits = OS.GetWindowLong (handle, OS.GWL_EXSTYLE);
if ((bits & OS.WS_EX_LAYERED) != 0) {
flags &= ~OS.SWP_DRAWFRAME;
}
super.setBoundsInPixels (x, y, width, height, flags, false);
}
@Override
public void setEnabled (boolean enabled) {
checkWidget ();
if (((state & DISABLED) == 0) == enabled) return;
super.setEnabled (enabled);
if (enabled && handle == OS.GetActiveWindow ()) {
if (!restoreFocus ()) traverseGroup (true);
}
}
/**
* Sets the full screen state of the receiver.
* If the argument is true causes the receiver
* to switch to the full screen state, and if the argument is
* false and the receiver was previously switched
* into full screen state, causes the receiver to switch back
* to either the maximized or normal states.
*
* Note: The result of intermixing calls to setFullScreen(true),
* setMaximized(true), setMinimized(true) and
* setMaximumSize will vary by platform.
* Typically, the behavior will match the platform user's
* expectations, but not always. This should be avoided if possible.
*
*
* @param fullScreen the new fullscreen state
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.4
*/
public void setFullScreen (boolean fullScreen) {
checkWidget();
if (this.fullScreen == fullScreen) return;
int stateFlags = fullScreen ? OS.SW_SHOWMAXIMIZED : OS.SW_RESTORE;
int styleFlags = OS.GetWindowLong (handle, OS.GWL_STYLE);
int mask = SWT.TITLE | SWT.CLOSE | SWT.MIN | SWT.MAX;
if ((style & mask) != 0) {
if (fullScreen) {
styleFlags &= ~(OS.WS_CAPTION | OS.WS_MAXIMIZEBOX | OS.WS_MINIMIZEBOX | OS.WS_THICKFRAME);
} else {
styleFlags |= OS.WS_CAPTION;
if ((style & SWT.MAX) != 0) styleFlags |= OS.WS_MAXIMIZEBOX;
if ((style & SWT.MIN) != 0) styleFlags |= OS.WS_MINIMIZEBOX;
if ((style & SWT.RESIZE) != 0) styleFlags |= OS.WS_THICKFRAME;
}
}
if (fullScreen) wasMaximized = getMaximized ();
boolean visible = isVisible ();
if (!visible && !wasMaximized) {
swFlags = stateFlags;
}
OS.SetWindowLong (handle, OS.GWL_STYLE, styleFlags);
if (wasMaximized) {
OS.ShowWindow (handle, OS.SW_HIDE);
stateFlags = OS.SW_SHOWMAXIMIZED;
}
if (visible) OS.ShowWindow (handle, stateFlags);
OS.UpdateWindow (handle);
this.fullScreen = fullScreen;
}
/**
* 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 SWT:
* NONE, ROMAN, DBCS,
* PHONETIC, NATIVE, ALPHA.
*
* @param mode the new IME mode
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @see SWT
*/
public void setImeInputMode (int mode) {
checkWidget ();
if (!OS.IsDBLocale) return;
boolean imeOn = mode != SWT.NONE;
long hIMC = OS.ImmGetContext (handle);
OS.ImmSetOpenStatus (hIMC, imeOn);
if (imeOn) {
int [] lpfdwConversion = new int [1], lpfdwSentence = new int [1];
if (OS.ImmGetConversionStatus (hIMC, lpfdwConversion, lpfdwSentence)) {
int newBits = 0;
int oldBits = OS.IME_CMODE_NATIVE | OS.IME_CMODE_KATAKANA;
if ((mode & SWT.PHONETIC) != 0) {
newBits = OS.IME_CMODE_KATAKANA | OS.IME_CMODE_NATIVE;
oldBits = 0;
} else {
if ((mode & SWT.NATIVE) != 0) {
newBits = OS.IME_CMODE_NATIVE;
oldBits = OS.IME_CMODE_KATAKANA;
}
}
boolean fullShape = (mode & SWT.DBCS) != 0;
if ((mode & SWT.NATIVE) != 0) {
long hkl = OS.GetKeyboardLayout (0);
int langid = OS.PRIMARYLANGID (OS.LOWORD (hkl));
if (langid == OS.LANG_JAPANESE) {
fullShape = true;
}
}
if (fullShape) {
newBits |= OS.IME_CMODE_FULLSHAPE;
} else {
oldBits |= OS.IME_CMODE_FULLSHAPE;
}
if ((mode & SWT.ROMAN) != 0) {
newBits |= OS.IME_CMODE_ROMAN;
} else {
oldBits |= OS.IME_CMODE_ROMAN;
}
lpfdwConversion [0] |= newBits;
lpfdwConversion [0] &= ~oldBits;
OS.ImmSetConversionStatus (hIMC, lpfdwConversion [0], lpfdwSentence [0]);
}
}
OS.ImmReleaseContext (handle, hIMC);
}
/**
* Sets the receiver's maximum size to the size specified by the arguments.
* If the new maximum size is smaller than the current size of the receiver,
* the receiver is resized to the new maximum size.
*
* Note: The result of intermixing calls to setMaximumSize and
* setFullScreen(true) will vary by platform.
* Typically, the behavior will match the platform user's
* expectations, but not always. This should be avoided if possible.
*
* @param width the new maximum width for the receiver
* @param height the new maximum height for the receiver
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.116
*/
public void setMaximumSize (int width, int height) {
checkWidget ();
int zoom = getZoom();
setMaximumSizeInPixels(DPIUtil.scaleUp(width, zoom), DPIUtil.scaleUp(height, zoom));
}
/**
* Sets the receiver's maximum size to the size specified by the argument.
* If the new maximum size is smaller than the current size of the receiver,
* the receiver is resized to the new maximum size.
*
* Note: The result of intermixing calls to setMaximumSize and
* setFullScreen(true) will vary by platform.
* Typically, the behavior will match the platform user's
* expectations, but not always. This should be avoided if possible.
*
* @param size the new maximum size for the receiver
*
* @exception IllegalArgumentException
* - ERROR_NULL_ARGUMENT - if the point is null
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.116
*/
public void setMaximumSize (Point size) {
checkWidget ();
if (size == null) error (SWT.ERROR_NULL_ARGUMENT);
size = DPIUtil.scaleUp(size, getZoom());
setMaximumSizeInPixels(size.x, size.y);
}
void setMaximumSizeInPixels (int width, int height) {
int widthLimit = 0, heightLimit = 0;
int trim = SWT.TITLE | SWT.CLOSE | SWT.MIN | SWT.MAX;
if ((style & SWT.NO_TRIM) == 0 && (style & trim) != 0) {
widthLimit = getSystemMetrics (OS.SM_CXMAXTRACK);
if ((style & SWT.RESIZE) != 0) {
heightLimit = getSystemMetrics (OS.SM_CYMAXTRACK);
} else {
RECT rect = new RECT ();
int bits1 = OS.GetWindowLong (handle, OS.GWL_STYLE);
int bits2 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE);
OS.AdjustWindowRectEx (rect, bits1, false, bits2);
heightLimit = rect.bottom - rect.top;
}
}
maxWidth = Math.min (widthLimit, width);
maxHeight = Math.min (heightLimit, height);
Point size = getSizeInPixels ();
int newWidth = Math.min (size.x, maxWidth);
int newHeight = Math.min (size.y, maxHeight);
if (maxWidth >= widthLimit) maxWidth = SWT.DEFAULT;
if (maxHeight >= heightLimit) maxHeight = SWT.DEFAULT;
if (newWidth != size.x || newHeight != size.y) setSizeInPixels (newWidth, newHeight);
}
/**
* 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
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.1
*/
public void setMinimumSize (int width, int height) {
checkWidget ();
int zoom = getZoom();
setMinimumSizeInPixels(DPIUtil.scaleUp(width, zoom), DPIUtil.scaleUp(height, zoom));
}
void setMinimumSizeInPixels (int width, int height) {
int widthLimit = 0, heightLimit = 0;
int trim = SWT.TITLE | SWT.CLOSE | SWT.MIN | SWT.MAX;
if ((style & SWT.NO_TRIM) == 0 && (style & trim) != 0) {
widthLimit = getSystemMetrics (OS.SM_CXMINTRACK);
if ((style & SWT.RESIZE) != 0) {
heightLimit = getSystemMetrics (OS.SM_CYMINTRACK);
} else {
RECT rect = new RECT ();
int bits1 = OS.GetWindowLong (handle, OS.GWL_STYLE);
int bits2 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE);
OS.AdjustWindowRectEx (rect, bits1, false, bits2);
heightLimit = rect.bottom - rect.top;
}
}
minWidth = Math.max (widthLimit, width);
minHeight = Math.max (heightLimit, height);
Point size = getSizeInPixels ();
int newWidth = Math.max (size.x, minWidth);
int newHeight = Math.max (size.y, minHeight);
if (minWidth <= widthLimit) minWidth = SWT.DEFAULT;
if (minHeight <= heightLimit) minHeight = SWT.DEFAULT;
if (newWidth != size.x || newHeight != size.y) setSizeInPixels (newWidth, newHeight);
}
/**
* 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
* - ERROR_NULL_ARGUMENT - if the point is null
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.1
*/
public void setMinimumSize (Point size) {
checkWidget ();
if (size == null) error (SWT.ERROR_NULL_ARGUMENT);
size = DPIUtil.scaleUp(size, getZoom());
setMinimumSizeInPixels(size.x, size.y);
}
/**
* Sets the receiver's modified state as specified by the argument.
*
* @param modified the new modified state for the receiver
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.5
*/
public void setModified (boolean modified) {
checkWidget ();
this.modified = modified;
}
void setItemEnabled (int cmd, boolean enabled) {
long hMenu = OS.GetSystemMenu (handle, false);
if (hMenu == 0) return;
int flags = OS.MF_ENABLED;
if (!enabled) flags = OS.MF_DISABLED | OS.MF_GRAYED;
OS.EnableMenuItem (hMenu, cmd, OS.MF_BYCOMMAND | flags);
}
@Override
void setParent () {
/* Do nothing. Not necessary for Shells */
}
/**
* 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.
*
* NOTE: This method also sets the size of the shell. Clients should
* not call {@link #setSize} or {@link #setBounds} on this shell.
* Furthermore, the passed region should not be modified any more.
*
*
* @param region the region that defines the shape of the shell (or null)
*
* @exception IllegalArgumentException
* - ERROR_INVALID_ARGUMENT - if the region has been disposed
*
* @exception SWTException
* - ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* - ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
*
*
* @since 3.0
*/
@Override
public void setRegion (Region region) {
checkWidget ();
if ((style & SWT.NO_TRIM) == 0) return;
if (region != null) {
Rectangle bounds = region.getBounds ();
setSize (bounds.x + bounds.width, bounds.y + bounds.height);
}
super.setRegion (region);
}
void setToolTipText (long hwnd, String text) {
TOOLINFO lpti = new TOOLINFO ();
lpti.cbSize = TOOLINFO.sizeof;
lpti.hwnd = handle;
lpti.uId = hwnd;
long hwndToolTip = toolTipHandle ();
maybeEnableDarkSystemTheme(hwndToolTip);
if (text == null) {
// Empty text, tool no longer needed, get rid of it
OS.SendMessage (hwndToolTip, OS.TTM_DELTOOL, 0, lpti);
return;
}
if (OS.SendMessage (hwndToolTip, OS.TTM_GETTOOLINFO, 0, lpti) == 0) {
// Non-empty text again, create tool
lpti.uFlags = OS.TTF_IDISHWND | OS.TTF_SUBCLASS;
lpti.lpszText = OS.LPSTR_TEXTCALLBACK;
OS.SendMessage (hwndToolTip, OS.TTM_ADDTOOL, 0, lpti);
return;
}
// Previous `TTM_GETTOOLINFO` was sent to specific tool, which is likely set to `LPSTR_TEXTCALLBACK`.
// In this case, WINAPI will set `TOOLINFO.lpszText` to `LPSTR_TEXTCALLBACK` (numerically -1).
// Now we're sending `TTM_GETCURRENTTOOL`, which may be sent to a different tool.
// If it happens to have text other than `LPSTR_TEXTCALLBACK`, WINAPI will try to copy it for us.
// `TOOLINFO.lpszText` must be either NULL or point to valid buffer, or there will be a native crash.
// We only want to check visible, so set to NULL.
lpti.lpszText = 0;
// Updating invisible tooltip reportedly causes issues, see Bug 495473
boolean isCurrentlyVisible =
(OS.SendMessage (hwndToolTip, OS.TTM_GETCURRENTTOOL, 0, lpti) != 0) &&
(lpti.uId == hwnd);
if (isCurrentlyVisible) {
// Tool was already present and visible.
// Need to update it.
OS.SendMessage (hwndToolTip, OS.TTM_UPDATE, 0, 0);
}
}
void setToolTipText (NMTTDISPINFO lpnmtdi, char [] buffer) {
/*
* Ensure that the current position of the mouse
* is inside the client area of the shell. This
* prevents tool tips from popping up over the
* shell trimmings.
*/
if (!hasCursor ()) return;
long hHeap = OS.GetProcessHeap ();
if (lpstrTip != 0) OS.HeapFree (hHeap, 0, lpstrTip);
int byteCount = buffer.length * 2;
lpstrTip = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount);
OS.MoveMemory (lpstrTip, buffer, byteCount);
lpnmtdi.lpszText = lpstrTip;
}
void setToolTipTitle (long hwndToolTip, String text, int icon) {
/*
* Bug in Windows. For some reason, when TTM_SETTITLE
* is used to set the title of a tool tip, Windows leaks
* GDI objects. This happens even when TTM_SETTITLE is
* called with TTI_NONE and NULL. The documentation
* states that Windows copies the icon and that the
* programmer must free the copy but does not provide
* API to get the icon. For example, when TTM_SETTITLE
* is called with ICON_ERROR, when TTM_GETTITLE is used
* to query the title and the icon, the uTitleBitmap
* field in the TTGETTITLE struct is zero. The fix
* is to remember these values, only set them when then
* change and leak less.
*
* NOTE: This only happens on Vista.
*/
if (hwndToolTip != toolTipHandle && hwndToolTip != balloonTipHandle && hwndToolTip != menuItemToolTipHandle) {
return;
}
if (hwndToolTip == toolTipHandle || hwndToolTip == menuItemToolTipHandle) {
if (text == toolTitle || (toolTitle != null && toolTitle.equals (text))) {
if (icon == toolIcon) return;
}
toolTitle = text;
toolIcon = icon;
} else {
if (hwndToolTip == balloonTipHandle) {
if (text == balloonTitle || (balloonTitle != null && balloonTitle.equals (text))) {
if (icon == toolIcon) return;
}
balloonTitle = text;
balloonIcon = icon;
}
}
if (text != null) {
/*
* Feature in Windows. The text point to by pszTitle
* must not exceed 100 characters in length, including
* the null terminator.
*/
if (text.length () > 99) text = text.substring (0, 99);
TCHAR pszTitle = new TCHAR (getCodePage (), text, true);
OS.SendMessage (hwndToolTip, OS.TTM_SETTITLE, icon, pszTitle);
} else {
OS.SendMessage (hwndToolTip, OS.TTM_SETTITLE, 0, 0);
}
}
@Override
public void setVisible (boolean visible) {
checkWidget ();
/*
* Feature in Windows. When ShowWindow() is called used to hide
* a window, Windows attempts to give focus to the parent. If the
* parent is disabled by EnableWindow(), focus is assigned to
* another windows on the desktop. This means that if you hide
* a modal window before the parent is enabled, the parent will
* not come to the front. The fix is to change the modal state
* before hiding or showing a window so that this does not occur.
*/
int mask = SWT.PRIMARY_MODAL | SWT.APPLICATION_MODAL | SWT.SYSTEM_MODAL;
if ((style & mask) != 0) {
if (visible) {
display.setModalShell (this);
if ((style & (SWT.APPLICATION_MODAL | SWT.SYSTEM_MODAL)) != 0) {
display.setModalDialog (null);
}
Control control = display._getFocusControl ();
if (control != null && !control.isActive ()) {
bringToTop ();
if (isDisposed ()) return;
}
long hwndShell = OS.GetActiveWindow ();
if (hwndShell == 0) {
if (parent != null) hwndShell = parent.handle;
}
if (hwndShell != 0) {
OS.SendMessage (hwndShell, OS.WM_CANCELMODE, 0, 0);
}
OS.ReleaseCapture ();
} else {
display.clearModal (this);
}
} else {
updateModal ();
}
/*
* Bug in Windows. Calling ShowOwnedPopups() to hide the
* child windows of a hidden window causes the application
* to be deactivated. The fix is to call ShowOwnedPopups()
* to hide children before hiding the parent.
*/
if (showWithParent && !visible) {
OS.ShowOwnedPopups (handle, false);
}
if (!visible) fixActiveShell ();
if (visible && center && !moved) {
center ();
if (isDisposed ()) return;
}
super.setVisible (visible);
if (isDisposed ()) return;
if (showWithParent != visible) {
showWithParent = visible;
if (visible) {
OS.ShowOwnedPopups (handle, true);
}
}
/* Make the foreign window parent appear in the task bar */
if (visible) {
if (parent != null && (parent.state & FOREIGN_HANDLE) != 0) {
long hwndParent = parent.handle;
int style = OS.GetWindowLong (hwndParent, OS.GWL_EXSTYLE);
if ((style & OS.WS_EX_TOOLWINDOW) != 0) {
OS.SetWindowLong (hwndParent, OS.GWL_EXSTYLE, style & ~OS.WS_EX_TOOLWINDOW);
/*
* Bug in Windows. The window does not show in the task bar when
* WS_EX_TOOLWINDOW is removed after the window has already been shown.
* The fix is to hide and shown the shell.
*/
OS.ShowWindow (hwndParent, OS.SW_HIDE);
OS.ShowWindow (hwndParent, OS.SW_RESTORE);
}
}
}
}
@Override
void subclass () {
super.subclass ();
if (ToolTipProc != 0) {
long newProc = display.windowProc;
if (toolTipHandle != 0) {
OS.SetWindowLongPtr (toolTipHandle, OS.GWLP_WNDPROC, newProc);
}
if (balloonTipHandle != 0) {
OS.SetWindowLongPtr (balloonTipHandle, OS.GWLP_WNDPROC, newProc);
}
if (menuItemToolTipHandle != 0) {
OS.SetWindowLongPtr (menuItemToolTipHandle, OS.GWLP_WNDPROC, newProc);
}
}
}
long toolTipHandle () {
if (toolTipHandle == 0) createToolTipHandle ();
return toolTipHandle;
}
@Override
boolean translateAccelerator (MSG msg) {
if (!isEnabled () || !isActive ()) return false;
if (menuBar != null && !menuBar.isEnabled ()) return false;
return translateMDIAccelerator (msg) || translateMenuAccelerator (msg);
}
@Override
boolean traverseEscape () {
if (parent == null) return false;
if (!isVisible () || !isEnabled ()) return false;
close ();
return true;
}
@Override
void unsubclass () {
super.unsubclass ();
if (ToolTipProc != 0) {
if (toolTipHandle != 0) {
OS.SetWindowLongPtr (toolTipHandle, OS.GWLP_WNDPROC, ToolTipProc);
}
if (toolTipHandle != 0) {
OS.SetWindowLongPtr (toolTipHandle, OS.GWLP_WNDPROC, ToolTipProc);
}
if (menuItemToolTipHandle != 0) {
OS.SetWindowLongPtr (menuItemToolTipHandle, OS.GWLP_WNDPROC, ToolTipProc);
}
}
}
void updateModal () {
if (Display.TrimEnabled) {
setItemEnabled (OS.SC_CLOSE, isActive ());
} else {
OS.EnableWindow (handle, isActive ());
}
}
@Override
CREATESTRUCT widgetCreateStruct () {
return null;
}
@Override
long widgetParent () {
if (handle != 0) return handle;
return parent != null ? parent.handle : 0;
}
@Override
int widgetExtStyle () {
int bits = super.widgetExtStyle () & ~OS.WS_EX_MDICHILD;
if ((style & SWT.TOOL) != 0) bits |= OS.WS_EX_TOOLWINDOW;
/*
* Feature in Windows. When a window that does not have a parent
* is created, it is automatically added to the Windows Task Bar,
* even when it has no title. The fix is to use WS_EX_TOOLWINDOW
* which does not cause the window to appear in the Task Bar.
*/
if (parent == null) {
if ((style & SWT.ON_TOP) != 0) {
int trim = SWT.TITLE | SWT.CLOSE | SWT.MIN | SWT.MAX;
if ((style & SWT.NO_TRIM) != 0 || (style & trim) == 0) {
bits |= OS.WS_EX_TOOLWINDOW;
}
}
}
if ((style & SWT.ON_TOP) != 0) bits |= OS.WS_EX_TOPMOST;
return bits;
}
@Override
TCHAR windowClass () {
if ((style & SWT.TOOL) != 0) {
int trim = SWT.TITLE | SWT.CLOSE | SWT.MIN | SWT.MAX | SWT.BORDER | SWT.RESIZE;
if ((style & trim) == 0) return display.windowShadowClass;
}
return parent != null ? DialogClass : super.windowClass ();
}
@Override
long windowProc () {
if (windowProc != 0) return windowProc;
if ((style & SWT.TOOL) != 0) {
int trim = SWT.TITLE | SWT.CLOSE | SWT.MIN | SWT.MAX | SWT.BORDER | SWT.RESIZE;
if ((style & trim) == 0) return super.windowProc ();
}
return parent != null ? DialogProc : super.windowProc ();
}
Rectangle getClientRectInWindow () {
RECT windowRect = new RECT ();
OS.GetWindowRect (handle, windowRect);
POINT clientWindowLT = new POINT ();
OS.ClientToScreen (handle, clientWindowLT);
clientWindowLT.x -= windowRect.left;
clientWindowLT.y -= windowRect.top;
RECT clientRect = new RECT ();
OS.GetClientRect (handle, clientRect);
return new Rectangle(
clientWindowLT.x + clientRect.left,
clientWindowLT.y + clientRect.top,
clientRect.right - clientRect.left,
clientRect.bottom - clientRect.top);
}
void overpaintMenuBorder () {
if ((menuBar == null) || (display.menuBarBorderPen == 0)) return;
Rectangle clientArea = getClientRectInWindow();
long dc = OS.GetWindowDC (handle);
long oldPen = OS.SelectObject (dc, display.menuBarBorderPen);
OS.MoveToEx (dc, clientArea.x, clientArea.y - 1, 0);
OS.LineTo (dc, clientArea.x + clientArea.width, clientArea.y - 1);
OS.SelectObject (dc, oldPen);
OS.ReleaseDC (handle, dc);
}
@Override
long windowProc (long hwnd, int msg, long wParam, long lParam) {
if (handle == 0) return 0;
if((style & SWT.NO_MOVE) != 0 && msg == OS.WM_NCLBUTTONDOWN && wParam == OS.HTCAPTION) return 0;
if (hwnd == toolTipHandle || hwnd == balloonTipHandle || hwnd == menuItemToolTipHandle) {
switch (msg) {
case OS.WM_TIMER: {
if (wParam != ToolTip.TIMER_ID) break;
ToolTip tip = getCurrentToolTip (hwnd);
if (tip != null && tip.autoHide) {
tip.setVisible (false);
}
break;
}
case OS.WM_LBUTTONDOWN: {
ToolTip tip = getCurrentToolTip (hwnd);
if (tip != null) {
tip.setVisible (false);
tip.sendSelectionEvent (SWT.Selection);
}
break;
}
}
return callWindowProc (hwnd, msg, wParam, lParam);
}
if (hwnd == handle) {
if (msg == Display.TASKBARBUTTONCREATED) {
if (display.taskBar != null) {
for (TaskItem item : display.taskBar.items) {
if (item != null && item.shell == this) {
item.onTaskbarButtonCreated();
break;
}
}
}
}
}
switch (msg) {
case OS.WM_NCACTIVATE:
case OS.WM_NCPAINT:
{
long ret = super.windowProc (hwnd, msg, wParam, lParam);
overpaintMenuBorder();
return ret;
}
}
return super.windowProc (hwnd, msg, wParam, lParam);
}
@Override
int widgetStyle () {
int bits = super.widgetStyle ();
if (handle != 0) return bits | OS.WS_CHILD;
bits &= ~OS.WS_CHILD;
/*
* Use WS_OVERLAPPED for all windows, either dialog or top level
* so that CreateWindowEx () will respect CW_USEDEFAULT and set
* the default window location and size.
*
* NOTE: When a WS_OVERLAPPED window is created, Windows gives
* the new window WS_CAPTION style bits. These two constants are
* as follows:
*
* WS_OVERLAPPED = 0
* WS_CAPTION = WS_BORDER | WS_DLGFRAME
*/
return bits | OS.WS_OVERLAPPED | OS.WS_CAPTION;
}
@Override
LRESULT WM_ACTIVATE (long wParam, long lParam) {
/* Process WM_ACTIVATE */
LRESULT result = super.WM_ACTIVATE (wParam, lParam);
if (OS.LOWORD (wParam) == 0) {
if (lParam == 0 || (lParam != toolTipHandle && lParam != balloonTipHandle
&& lParam != menuItemToolTipHandle)) {
ToolTip tip = getCurrentToolTip ();
if (tip != null) tip.setVisible (false);
}
}
return parent != null ? LRESULT.ZERO : result;
}
@Override
LRESULT WM_DESTROY (long wParam, long lParam) {
LRESULT result = super.WM_DESTROY (wParam, lParam);
/*
* When the shell is a WS_CHILD window of a non-SWT
* window, the destroy code does not get called because
* the non-SWT window does not call dispose (). Instead,
* the destroy code is called here in WM_DESTROY.
*/
int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
if ((bits & OS.WS_CHILD) != 0) {
releaseParent ();
release (false);
}
return result;
}
@Override
LRESULT WM_ENTERIDLE (long wParam, long lParam) {
LRESULT result = super.WM_ENTERIDLE (wParam, lParam);
if (result != null) return result;
Display display = this.display;
if (display.runAsyncMessages (false)) display.wakeThread ();
return result;
}
@Override
LRESULT WM_GETMINMAXINFO (long wParam, long lParam) {
LRESULT result = super.WM_GETMINMAXINFO (wParam, lParam);
if (result != null) return result;
if (minWidth != SWT.DEFAULT || minHeight != SWT.DEFAULT
|| maxWidth != SWT.DEFAULT || maxHeight != SWT.DEFAULT) {
MINMAXINFO info = new MINMAXINFO ();
OS.MoveMemory (info, lParam, MINMAXINFO.sizeof);
if (minWidth != SWT.DEFAULT) info.ptMinTrackSize_x = minWidth;
if (minHeight != SWT.DEFAULT) info.ptMinTrackSize_y = minHeight;
if (maxWidth != SWT.DEFAULT) info.ptMaxTrackSize_x = maxWidth;
if (maxHeight != SWT.DEFAULT) info.ptMaxTrackSize_y = maxHeight;
OS.MoveMemory (lParam, info, MINMAXINFO.sizeof);
return LRESULT.ZERO;
}
return result;
}
@Override
LRESULT WM_MOUSEACTIVATE (long wParam, long lParam) {
LRESULT result = super.WM_MOUSEACTIVATE (wParam, lParam);
if (result != null) return result;
/*
* Check for WM_MOUSEACTIVATE when an MDI shell is active
* and stop the normal shell activation but allow the mouse
* down to be delivered.
*/
int hittest = (short) OS.LOWORD (lParam);
switch (hittest) {
case OS.HTERROR:
case OS.HTTRANSPARENT:
case OS.HTNOWHERE:
break;
default: {
Control control = display._getFocusControl ();
if (control != null) {
Decorations decorations = control.menuShell ();
if (decorations.getShell () == this && decorations != this) {
display.ignoreRestoreFocus = true;
display.lastHittest = hittest;
display.lastHittestControl = null;
if (hittest == OS.HTMENU || hittest == OS.HTSYSMENU) {
display.lastHittestControl = control;
return null;
}
return new LRESULT (OS.MA_NOACTIVATE);
}
}
}
}
if (hittest == OS.HTMENU) return null;
/*
* Get the current location of the cursor,
* not the location of the cursor when the
* WM_MOUSEACTIVATE was generated. This is
* strictly incorrect but is necessary in
* order to support Activate and Deactivate
* events for embedded widgets that have
* their own event loop. In that case, the
* cursor location reported by GetMessagePos()
* is the one for our event loop, not the
* embedded widget's event loop.
*/
POINT pt = new POINT ();
if (!OS.GetCursorPos (pt)) {
int pos = OS.GetMessagePos ();
OS.POINTSTOPOINT (pt, pos);
}
long hwnd = OS.WindowFromPoint (pt);
if (hwnd == 0) return null;
Control control = display.findControl (hwnd);
/*
* When a shell is created with SWT.ON_TOP and SWT.NO_FOCUS,
* do not activate the shell when the user clicks on the
* the client area or on the border or a control within the
* shell that does not take focus.
*/
if (control != null && (control.state & CANVAS) != 0) {
if ((control.style & SWT.NO_FOCUS) != 0) {
int bits = SWT.ON_TOP | SWT.NO_FOCUS;
if ((style & bits) == bits) {
if (hittest == OS.HTBORDER || hittest == OS.HTCLIENT) {
return new LRESULT (OS.MA_NOACTIVATE);
}
}
}
}
long code = callWindowProc (handle, OS.WM_MOUSEACTIVATE, wParam, lParam);
setActiveControl (control, SWT.MouseDown);
return new LRESULT (code);
}
@Override
LRESULT WM_MOVE (long wParam, long lParam) {
LRESULT result = super.WM_MOVE (wParam, lParam);
if (result != null) return result;
ToolTip tip = getCurrentToolTip ();
if (tip != null) tip.setVisible (false);
return result;
}
@Override
LRESULT WM_NCHITTEST (long wParam, long lParam) {
if (!OS.IsWindowEnabled (handle)) return null;
if (!isEnabled () || !isActive ()) {
if (!Display.TrimEnabled) return new LRESULT (OS.HTNOWHERE);
long hittest = callWindowProc (handle, OS.WM_NCHITTEST, wParam, lParam);
if (hittest == OS.HTCLIENT || hittest == OS.HTMENU) hittest = OS.HTBORDER;
return new LRESULT (hittest);
}
if (menuBar != null && !menuBar.getEnabled ()) {
long hittest = callWindowProc (handle, OS.WM_NCHITTEST, wParam, lParam);
if (hittest == OS.HTMENU) hittest = OS.HTBORDER;
return new LRESULT (hittest);
}
return null;
}
@Override
LRESULT WM_NCLBUTTONDOWN (long wParam, long lParam) {
LRESULT result = super.WM_NCLBUTTONDOWN (wParam, lParam);
if (result != null) return result;
/*
* When the normal activation was interrupted in WM_MOUSEACTIVATE
* because the active shell was an MDI shell, set the active window
* to the top level shell but lock the active window and stop focus
* changes. This allows the user to interact the top level shell
* in the normal manner.
*/
if (!display.ignoreRestoreFocus) return result;
Display display = this.display;
display.lockActiveWindow = true;
long code = callWindowProc (handle, OS.WM_NCLBUTTONDOWN, wParam, lParam);
display.lockActiveWindow = false;
Control focusControl = display.lastHittestControl;
if (focusControl != null && !focusControl.isDisposed ()) {
focusControl.setFocus ();
}
display.lastHittestControl = null;
display.ignoreRestoreFocus = false;
return new LRESULT (code);
}
@Override
LRESULT WM_SETCURSOR (long wParam, long lParam) {
/*
* Feature in Windows. When the shell is disabled
* by a Windows standard dialog (like a MessageBox
* or FileDialog), clicking in the shell does not
* bring the shell or the dialog to the front. The
* fix is to detect this case and bring the shell
* forward.
*/
int msg = OS.HIWORD (lParam);
if (msg == OS.WM_LBUTTONDOWN) {
if (!Display.TrimEnabled) {
Shell modalShell = display.getModalShell ();
if (modalShell != null && !isActive ()) {
long hwndModal = modalShell.handle;
if (OS.IsWindowEnabled (hwndModal)) {
OS.SetActiveWindow (hwndModal);
}
}
}
if (!OS.IsWindowEnabled (handle)) {
long hwndPopup = OS.GetLastActivePopup (handle);
if (hwndPopup != 0 && hwndPopup != handle) {
if (display.getControl (hwndPopup) == null) {
if (OS.IsWindowEnabled (hwndPopup)) {
OS.SetActiveWindow (hwndPopup);
}
}
}
}
}
/*
* When the shell that contains a cursor is disabled,
* WM_SETCURSOR is called with HTERROR. Normally,
* when a control is disabled, the parent will get
* mouse and cursor events. In the case of a disabled
* shell, there is no enabled parent. In order to
* show the cursor when a shell is disabled, it is
* necessary to override WM_SETCURSOR when called
* with HTERROR to set the cursor but only when the
* mouse is in the client area of the shell.
*/
int hitTest = (short) OS.LOWORD (lParam);
if (hitTest == OS.HTERROR) {
if (!getEnabled ()) {
Control control = display.getControl (wParam);
if (control == this && cursor != null) {
POINT pt = new POINT ();
int pos = OS.GetMessagePos ();
OS.POINTSTOPOINT (pt, pos);
OS.ScreenToClient (handle, pt);
RECT rect = new RECT ();
OS.GetClientRect (handle, rect);
if (OS.PtInRect (rect, pt)) {
OS.SetCursor (cursor.handle);
switch (msg) {
case OS.WM_LBUTTONDOWN:
case OS.WM_RBUTTONDOWN:
case OS.WM_MBUTTONDOWN:
case OS.WM_XBUTTONDOWN:
OS.MessageBeep (OS.MB_OK);
}
return LRESULT.ONE;
}
}
}
}
return super.WM_SETCURSOR (wParam, lParam);
}
@Override
LRESULT WM_SHOWWINDOW (long wParam, long lParam) {
LRESULT result = super.WM_SHOWWINDOW (wParam, lParam);
if (result != null) return result;
/*
* Bug in Windows. If the shell is hidden while the parent
* is iconic, Windows shows the shell when the parent is
* deiconified. This does not happen if the shell is hidden
* while the parent is not an icon. The fix is to track
* visible state for the shell and refuse to show the shell
* when the parent is shown.
*/
if (lParam == OS.SW_PARENTOPENING) {
Control control = this;
while (control != null) {
Shell shell = control.getShell ();
if (!shell.showWithParent) return LRESULT.ZERO;
control = control.parent;
}
}
return result;
}
@Override
LRESULT WM_WINDOWPOSCHANGING (long wParam, long lParam) {
LRESULT result = super.WM_WINDOWPOSCHANGING (wParam,lParam);
if (result != null) return result;
WINDOWPOS lpwp = new WINDOWPOS ();
OS.MoveMemory (lpwp, lParam, WINDOWPOS.sizeof);
if ((lpwp.flags & OS.SWP_NOSIZE) == 0) {
lpwp.cx = Math.max (lpwp.cx, minWidth);
int trim = SWT.TITLE | SWT.CLOSE | SWT.MIN | SWT.MAX;
if ((style & SWT.NO_TRIM) == 0 && (style & trim) != 0) {
lpwp.cx = Math.max (lpwp.cx, getSystemMetrics (OS.SM_CXMINTRACK));
}
lpwp.cy = Math.max (lpwp.cy, minHeight);
if ((style & SWT.NO_TRIM) == 0 && (style & trim) != 0) {
if ((style & SWT.RESIZE) != 0) {
lpwp.cy = Math.max (lpwp.cy, getSystemMetrics (OS.SM_CYMINTRACK));
} else {
RECT rect = new RECT ();
int bits1 = OS.GetWindowLong (handle, OS.GWL_STYLE);
int bits2 = OS.GetWindowLong (handle, OS.GWL_EXSTYLE);
OS.AdjustWindowRectEx (rect, bits1, false, bits2);
lpwp.cy = Math.max (lpwp.cy, rect.bottom - rect.top);
}
}
OS.MoveMemory (lParam, lpwp, WINDOWPOS.sizeof);
}
return result;
}
private static void handleDPIChange(Widget widget, int newZoom, float scalingFactor) {
if (!(widget instanceof Shell shell)) {
return;
}
shell.layout (null, SWT.DEFER | SWT.ALL | SWT.CHANGED);
}
}
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