package org.eclipse.swt.widgets;
/*
* Licensed Materials - Property of IBM,
* SWT - The Simple Widget Toolkit,
* (c) Copyright IBM Corp 1998, 1999.
*/
/* Imports */
import org.eclipse.swt.internal.*;
import org.eclipse.swt.internal.motif.*;
import org.eclipse.swt.*;
/**
* A DirectoryDialog allows the user to navigate
* the file and select a directory.
*/
/* Class Definition */
public /*final*/ class DirectoryDialog extends Dialog {
String filterPath = "";
boolean cancel = true;
String message = "";
public DirectoryDialog (Shell parent) {
this (parent, SWT.PRIMARY_MODAL);
}
public DirectoryDialog (Shell parent, int style) {
super (parent, style);
}
int activate (int widget, int client, int call) {
cancel = client == OS.XmDIALOG_CANCEL_BUTTON;
OS.XtUnmanageChild (widget);
return 0;
}
public String getFilterPath () {
return filterPath;
}
public String getMessage () {
return message;
}
public String open () {
/* Get the parent */
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 [] buffer1 = Converter.wcsToMbcs (null, string, true);
int xmStringPtr1 = OS.XmStringParseText (
buffer1,
0,
OS.XmFONTLIST_DEFAULT_TAG,
OS.XmCHARSET_TEXT,
null,
0,
0);
/* Compute the filter */
byte [] buffer2 = Converter.wcsToMbcs (null, "*", true);
int xmStringPtr2 = OS.XmStringParseText (
buffer2,
0,
OS.XmFONTLIST_DEFAULT_TAG,
OS.XmCHARSET_TEXT,
null,
0,
0);
/* Compute the filter path */
if (filterPath == null) filterPath = "";
byte [] buffer3 = Converter.wcsToMbcs (null, filterPath, true);
int xmStringPtr3 = OS.XmStringParseText (
buffer3,
0,
OS.XmFONTLIST_DEFAULT_TAG,
OS.XmCHARSET_TEXT,
null,
0,
0);
byte [] buffer7 = Converter.wcsToMbcs (null, "Selection", true);
int xmStringPtr4 = OS.XmStringParseText (
buffer7,
0,
OS.XmFONTLIST_DEFAULT_TAG,
OS.XmCHARSET_TEXT,
null,
0,
0);
/* Create the dialog */
int [] argList1 = {
OS.XmNresizePolicy, OS.XmRESIZE_NONE,
OS.XmNdialogStyle, OS.XmDIALOG_PRIMARY_APPLICATION_MODAL,
OS.XmNwidth, OS.XDisplayWidth (display, OS.XDefaultScreen (display)) * 4 / 9,
OS.XmNdialogTitle, xmStringPtr1,
OS.XmNpattern, xmStringPtr2,
OS.XmNdirectory, xmStringPtr3,
OS.XmNfilterLabelString, xmStringPtr4
};
/*
* Feature in Linux. For some reason, the XmCreateFileSelectionDialog()
* will not accept NULL for the widget name. This works fine on the other
* Motif platforms and in the other XmCreate calls on Linux. The fix is
* to pass in a NULL terminated string, not a NULL pointer.
*/
byte [] name = new byte [] {0};
int dialog = OS.XmCreateFileSelectionDialog (parentHandle, name, argList1, argList1.length / 2);
int child = OS.XmFileSelectionBoxGetChild (dialog, OS.XmDIALOG_HELP_BUTTON);
if (child != 0) OS.XtUnmanageChild (child);
child = OS.XmFileSelectionBoxGetChild (dialog, OS.XmDIALOG_LIST);
if (child != 0) {
int parent2 = OS.XtParent(child);
if (parent2 !=0) OS.XtUnmanageChild (parent2);
}
child = OS.XmFileSelectionBoxGetChild (dialog, OS.XmDIALOG_LIST_LABEL);
if (child != 0) OS.XtUnmanageChild (child);
child = OS.XmFileSelectionBoxGetChild (dialog, OS.XmDIALOG_TEXT);
if (child != 0) OS.XtUnmanageChild (child);
child = OS.XmFileSelectionBoxGetChild (dialog, OS.XmDIALOG_SELECTION_LABEL);
if (child != 0) OS.XtUnmanageChild (child);
OS.XmStringFree (xmStringPtr1);
OS.XmStringFree (xmStringPtr2);
OS.XmStringFree (xmStringPtr3);
OS.XmStringFree (xmStringPtr4);
// Add label widget for message text.
byte [] buffer4 = Converter.wcsToMbcs (null, message, true);
int [] parseTable = Display.getDefault ().parseTable;
int xmString1 = OS.XmStringParseText (
buffer4,
0,
OS.XmFONTLIST_DEFAULT_TAG,
OS.XmCHARSET_TEXT,
parseTable,
parseTable.length,
0);
int [] argList = {
OS.XmNlabelType, OS.XmSTRING,
OS.XmNlabelString, xmString1
};
int textArea = OS.XmCreateLabel(dialog, name, argList, argList.length/2);
OS.XtManageChild(textArea);
/* 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);
/* Open the dialog and dispatch events. */
cancel = true;
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 ();
/* Set the new path, file name and filter. */
String directoryPath="";
if (!cancel) {
int [] argList2 = {OS.XmNdirMask, 0};
OS.XtGetValues (dialog, argList2, argList2.length / 2);
int xmString3 = argList2 [1];
int ptr = OS.XmStringUnparse (
xmString3,
null,
OS.XmCHARSET_TEXT,
OS.XmCHARSET_TEXT,
null,
0,
OS.XmOUTPUT_ALL);
if (ptr != 0) {
int length = OS.strlen (ptr);
byte [] buffer = new byte [length];
OS.memmove (buffer, ptr, length);
OS.XtFree (ptr);
directoryPath = new String (Converter.mbcsToWcs (null, buffer));
}
OS.XmStringFree (xmString3);
int length = directoryPath.length ();
if (length != 0) {
if (directoryPath.charAt (length -1) == '/') {
directoryPath = directoryPath.substring (0, length - 1);
} else {
if (length > 1 && directoryPath.charAt (length - 2) == '/' && directoryPath.charAt (length - 1) == '*') {
directoryPath = directoryPath.substring (0, length - 2);
}
}
}
}
/* 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 (cancel) return null;
return directoryPath;
}
public void setFilterPath (String string) {
filterPath = string;
}
public void setMessage (String string) {
message = string;
}
}
