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package org.eclipse.swt.widgets;
/*
* Licensed Materials - Property of IBM,
* SWT - The Simple Widget Toolkit,
* (c) Copyright IBM Corp 1998, 1999.
*/
/**
* A message box is used to inform or warn the
* the user that a particular situation has occurred.
*
* Styles
*
* ICON_ERROR, ICON_INFORMATION, ICON_QUESTION, ICON_WARNING, ICON_WORKING,
* OK, OK_CANCEL, YES_NO, YES_NO_CANCEL
*
* Events
*
**/
/* Imports */
import org.eclipse.swt.internal.*;
import org.eclipse.swt.internal.motif.*;
import org.eclipse.swt.*;
import org.eclipse.swt.widgets.*;
/* Class Definition */
public /*final*/ class MessageBox extends Dialog {
int button;
String message = "";
public MessageBox (Shell parent) {
this (parent, SWT.OK | SWT.ICON_INFORMATION | SWT.APPLICATION_MODAL);
}
public MessageBox (Shell parent, int style) {
super (parent, checkStyle (style));
}
int activate (int widget, int client, int call) {
OS.XtUnmanageChild (widget);
button = client;
return 0;
}
static int checkStyle (int style) {
if ((style & (SWT.PRIMARY_MODAL | SWT.APPLICATION_MODAL | SWT.SYSTEM_MODAL)) == 0) style |= SWT.APPLICATION_MODAL;
int mask = (SWT.YES | SWT.NO | SWT.OK | SWT.CANCEL | SWT.ABORT | SWT.RETRY | SWT.IGNORE);
int bits = style & mask;
if (bits == SWT.OK || bits == SWT.CANCEL || bits == (SWT.OK | SWT.CANCEL)) return style;
if (bits == SWT.YES || bits == SWT.NO || bits == (SWT.YES | SWT.NO) || bits == (SWT.YES | SWT.NO | SWT.CANCEL)) return style;
if (bits == (SWT.RETRY | SWT.CANCEL) || bits == (SWT.ABORT | SWT.RETRY | SWT.IGNORE)) return style;
style = (style & ~mask) | SWT.OK;
return style;
}
int createHandle (int parentHandle, int [] argList) {
if ((style & SWT.ICON_ERROR) != 0) return OS.XmCreateErrorDialog (parentHandle, null, argList, argList.length / 2);
if ((style & SWT.ICON_INFORMATION) != 0) return OS.XmCreateInformationDialog (parentHandle, null, argList, argList.length / 2);
if ((style & SWT.ICON_QUESTION) != 0) return OS.XmCreateQuestionDialog (parentHandle, null, argList, argList.length / 2);
if ((style & SWT.ICON_WARNING) != 0) return OS.XmCreateWarningDialog (parentHandle, null, argList, argList.length / 2);
return OS.XmCreateMessageDialog (parentHandle, null, argList, argList.length / 2);
}
public String getMessage () {
return message;
}
public int open () {
/* Create the dialog.*/
boolean destroyContext;
Display appContext = Display.getCurrent ();
if (destroyContext = (appContext == null)) appContext = new Display ();
int display = appContext.xDisplay;
int parentHandle = appContext.shellHandle;
if (parent != null && parent.getDisplay () == appContext)
parentHandle = parent.shellHandle;
/* Compute the dialog title */
/*
* Feature in Motif. It is not possible to set a shell
* title to an empty string. The fix is to set the title
* to be a single space.
*/
String string = title;
if (string.length () == 0) string = " ";
byte [] buffer = Converter.wcsToMbcs (null, string, true);
int xmStringPtr = OS.XmStringParseText (
buffer,
0,
OS.XmFONTLIST_DEFAULT_TAG,
OS.XmCHARSET_TEXT,
null,
0,
0);
/*
* Feature in Motif. The modal values are only hints
* to the window manager. For example Enlightenment treats all modes
* as SWT.APPLICATION_MODAL. The generic Motif
* Window Manager honours all modes.
*/
int dialogStyle = OS.XmDIALOG_MODELESS;
if ((style & SWT.PRIMARY_MODAL) != 0) dialogStyle = OS.XmDIALOG_PRIMARY_APPLICATION_MODAL;
if ((style & SWT.APPLICATION_MODAL) != 0) dialogStyle = OS.XmDIALOG_FULL_APPLICATION_MODAL;
if ((style & SWT.SYSTEM_MODAL) != 0) dialogStyle = OS.XmDIALOG_SYSTEM_MODAL;
if (parent != null && dialogStyle == OS.XmDIALOG_MODELESS) {
dialogStyle = OS.XmDIALOG_PRIMARY_APPLICATION_MODAL;
}
int [] argList = {
OS.XmNnoResize, 1,
OS.XmNresizePolicy, OS.XmRESIZE_NONE,
OS.XmNdialogStyle, dialogStyle,
OS.XmNdialogTitle, xmStringPtr,
};
int dialog = createHandle (parentHandle, argList);
OS.XmStringFree (xmStringPtr);
setMessage (dialog);
setButtons (dialog);
/* Hook the callbacks. */
Callback callback = new Callback (this, "activate", 3);
int address = callback.getAddress ();
OS.XtAddCallback (dialog, OS.XmNokCallback, address, OS.XmDIALOG_OK_BUTTON);
OS.XtAddCallback (dialog, OS.XmNcancelCallback, address, OS.XmDIALOG_CANCEL_BUTTON);
OS.XtAddCallback (dialog, OS.XmNhelpCallback, address, OS.XmDIALOG_HELP_BUTTON);
/* Open the dialog and dispatch events. */
/*
shell == nil ifFalse: [
shell minimized ifTrue: [shell minimized: false]].
*/
OS.XtManageChild (dialog);
//BOGUS - should be a pure OS message loop (no SWT AppContext)
while (OS.XtIsRealized (dialog) && OS.XtIsManaged (dialog))
if (!appContext.readAndDispatch()) appContext.sleep ();
/* Destroy the dialog and update the display. */
if (OS.XtIsRealized (dialog)) OS.XtDestroyWidget (dialog);
if (destroyContext) appContext.dispose ();
callback.dispose ();
// (shell == nil or: [shell isDestroyed not]) ifTrue: [dialog xtDestroyWidget].
// OSWidget updateDisplay.
// entryPoint unbind.
if ((style & (SWT.YES | SWT.NO | SWT.CANCEL)) == (SWT.YES | SWT.NO | SWT.CANCEL)) {
if (button == OS.XmDIALOG_OK_BUTTON) return SWT.YES;
if (button == OS.XmDIALOG_CANCEL_BUTTON) return SWT.NO;
return SWT.CANCEL;
};
if ((style & (SWT.YES | SWT.NO)) == (SWT.YES | SWT.NO)) {
return (button == OS.XmDIALOG_OK_BUTTON) ? SWT.YES : SWT.NO;
}
if ((style & (SWT.OK | SWT.CANCEL)) == (SWT.OK | SWT.CANCEL)) {
return (button == OS.XmDIALOG_OK_BUTTON) ? SWT.OK : SWT.CANCEL;
}
if ((style & SWT.OK) == SWT.OK) return SWT.OK;
if ((style & (SWT.RETRY | SWT.CANCEL)) == (SWT.RETRY | SWT.CANCEL)) {
return (button == OS.XmDIALOG_OK_BUTTON) ? SWT.RETRY : SWT.CANCEL;
}
if ((style & (SWT.ABORT | SWT.RETRY | SWT.IGNORE)) == (SWT.ABORT | SWT.RETRY | SWT.IGNORE)) {
if (button == OS.XmDIALOG_OK_BUTTON) return SWT.ABORT;
if (button == OS.XmDIALOG_CANCEL_BUTTON) return SWT.RETRY;
return SWT.IGNORE;
}
return SWT.CANCEL;
}
void setButtons (int dialogHandle) {
/* Get the button children */
int ok = OS.XmMessageBoxGetChild (dialogHandle, OS.XmDIALOG_OK_BUTTON);
int cancel = OS.XmMessageBoxGetChild (dialogHandle, OS.XmDIALOG_CANCEL_BUTTON);
int help = OS.XmMessageBoxGetChild (dialogHandle, OS.XmDIALOG_HELP_BUTTON);
OS.XtUnmanageChild (help);
/* Set the button labels */
if ((style & (SWT.OK | SWT.CANCEL)) == (SWT.OK | SWT.CANCEL)) return;
if ((style & SWT.OK) == SWT.OK) {
OS.XtUnmanageChild (cancel);
return;
}
if ((style & (SWT.YES | SWT.NO | SWT.CANCEL)) == (SWT.YES | SWT.NO | SWT.CANCEL)) {
OS.XtManageChild (help);
byte [] buffer1 = Converter.wcsToMbcs (null, "Yes", true);
int xmString1 = OS.XmStringParseText (
buffer1,
0,
OS.XmFONTLIST_DEFAULT_TAG,
OS.XmCHARSET_TEXT,
null,
0,
0);
byte [] buffer2 = Converter.wcsToMbcs (null, "No", true);
int xmString2 = OS.XmStringParseText (
buffer2,
0,
OS.XmFONTLIST_DEFAULT_TAG,
OS.XmCHARSET_TEXT,
null,
0,
0);
byte [] buffer3 = Converter.wcsToMbcs (null, "Cancel", true);
int xmString3 = OS.XmStringParseText (
buffer3,
0,
OS.XmFONTLIST_DEFAULT_TAG,
OS.XmCHARSET_TEXT,
null,
0,
0);
int [] argList = {OS.XmNokLabelString, xmString1, OS.XmNcancelLabelString, xmString2, OS.XmNhelpLabelString, xmString3};
OS.XtSetValues (dialogHandle, argList, argList.length / 2);
OS.XmStringFree (xmString1); OS.XmStringFree (xmString2); OS.XmStringFree (xmString3);
return;
}
if ((style & (SWT.YES | SWT.NO)) == (SWT.YES | SWT.NO)) {
byte [] buffer1 = Converter.wcsToMbcs (null, "Yes", true);
int xmString1 = OS.XmStringParseText (
buffer1,
0,
OS.XmFONTLIST_DEFAULT_TAG,
OS.XmCHARSET_TEXT,
null,
0,
0);
byte [] buffer2 = Converter.wcsToMbcs (null, "No", true);
int xmString2 = OS.XmStringParseText (
buffer2,
0,
OS.XmFONTLIST_DEFAULT_TAG,
OS.XmCHARSET_TEXT,
null,
0,
0);
int [] argList = {OS.XmNokLabelString, xmString1, OS.XmNcancelLabelString, xmString2};
OS.XtSetValues (dialogHandle, argList, argList.length / 2);
OS.XmStringFree (xmString1); OS.XmStringFree (xmString2);
return;
}
if ((style & (SWT.RETRY | SWT.CANCEL)) == (SWT.RETRY | SWT.CANCEL)) {
byte [] buffer1 = Converter.wcsToMbcs (null, "Retry", true);
int xmString1 = OS.XmStringParseText (
buffer1,
0,
OS.XmFONTLIST_DEFAULT_TAG,
OS.XmCHARSET_TEXT,
null,
0,
0);
byte [] buffer2 = Converter.wcsToMbcs (null, "Cancel", true);
int xmString2 = OS.XmStringParseText (
buffer2,
0,
OS.XmFONTLIST_DEFAULT_TAG,
OS.XmCHARSET_TEXT,
null,
0,
0);
int [] argList = {OS.XmNokLabelString, xmString1, OS.XmNcancelLabelString, xmString2};
OS.XtSetValues (dialogHandle, argList, argList.length / 2);
OS.XmStringFree (xmString1); OS.XmStringFree (xmString2);
return;
}
if ((style & (SWT.ABORT | SWT.RETRY | SWT.IGNORE)) == (SWT.ABORT | SWT.RETRY | SWT.IGNORE)) {
OS.XtManageChild (help);
byte [] buffer1 = Converter.wcsToMbcs (null, "Abort", true);
int xmString1 = OS.XmStringParseText (
buffer1,
0,
OS.XmFONTLIST_DEFAULT_TAG,
OS.XmCHARSET_TEXT,
null,
0,
0);
byte [] buffer2 = Converter.wcsToMbcs (null, "Retry", true);
int xmString2 = OS.XmStringParseText (
buffer2,
0,
OS.XmFONTLIST_DEFAULT_TAG,
OS.XmCHARSET_TEXT,
null,
0,
0);
byte [] buffer3 = Converter.wcsToMbcs (null, "Ignore", true);
int xmString3 = OS.XmStringParseText (
buffer3,
0,
OS.XmFONTLIST_DEFAULT_TAG,
OS.XmCHARSET_TEXT,
null,
0,
0);
int [] argList = {OS.XmNokLabelString, xmString1, OS.XmNcancelLabelString, xmString2, OS.XmNhelpLabelString, xmString3};
OS.XtSetValues (dialogHandle, argList, argList.length / 2);
OS.XmStringFree (xmString1); OS.XmStringFree (xmString2); OS.XmStringFree (xmString3);
return;
}
}
void setMessage (int dialogHandle) {
String text = message;
int label = OS.XmMessageBoxGetChild (dialogHandle, OS.XmDIALOG_MESSAGE_LABEL);
if (label != 0) {
// (fontList := OSWidget resourceAt: XmNfontList handle: widget) == 0 ifFalse: [
// text := OSWidget wrapText: message font: fontList width: DisplayWidth * 3 // 5]].
}
byte [] buffer = Converter.wcsToMbcs (null, text, true);
int [] parseTable = Display.getDefault ().parseTable;
int xmStringPtr = OS.XmStringParseText (
buffer,
0,
OS.XmFONTLIST_DEFAULT_TAG,
OS.XmCHARSET_TEXT,
parseTable,
parseTable.length,
0);
int [] argList = {OS.XmNmessageString, xmStringPtr};
OS.XtSetValues (dialogHandle, argList, argList.length / 2);
OS.XmStringFree (xmStringPtr);
}
public void setMessage (String string) {
message = string;
}
}
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