| package org.eclipse.swt.widgets;
|
|
|
| /*
|
| * Copyright (c) 2000, 2002 IBM Corp. All rights reserved. |
| * This file is made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html
|
| */
|
|
|
| import org.eclipse.swt.*;
|
| import org.eclipse.swt.internal.*;
|
| import org.eclipse.swt.internal.gtk.*;
|
|
|
| /**
|
| * Instances of this class allow the user to navigate
|
| * the file system and select or enter a file name.
|
| * <dl>
|
| * <dt><b>Styles:</b></dt>
|
| * <dd>SAVE, OPEN, MULTI</dd>
|
| * <dt><b>Events:</b></dt>
|
| * <dd>(none)</dd>
|
| * </dl>
|
| * <p>
|
| * IMPORTANT: This class is intended to be subclassed <em>only</em>
|
| * within the SWT implementation.
|
| * </p>
|
| */ |
| public class FileDialog extends GtkFileDialog {
|
| String [] filterNames = new String [0];
|
| String [] filterExtensions = new String [0];
|
| String filterPath = "";
|
| String fileName = "";
|
| String[] fileNames = new String[0];
|
| String fullPath = "";
|
|
|
| /**
|
| * Constructs a new instance of this class given only its
|
| * parent.
|
| * <p>
|
| * Note: Currently, null can be passed in for the parent.
|
| * This has the effect of creating the dialog on the currently active
|
| * display if there is one. If there is no current display, the
|
| * dialog is created on a "default" display. <b>Passing in null as
|
| * the parent is not considered to be good coding style,
|
| * and may not be supported in a future release of SWT.</b>
|
| * </p>
|
| *
|
| * @param parent a shell which will be the parent of the new instance
|
| *
|
| * @exception IllegalArgumentException <ul>
|
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
|
| * </ul>
|
| * @exception SWTException <ul>
|
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
|
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
|
| * </ul>
|
| */ |
| public FileDialog (Shell parent) {
|
| this (parent, SWT.PRIMARY_MODAL);
|
| }
|
| /**
|
| * Constructs a new instance of this class given its parent
|
| * and a style value describing its behavior and appearance.
|
| * <p>
|
| * The style value is either one of the style constants defined in
|
| * class <code>SWT</code> which is applicable to instances of this
|
| * class, or must be built by <em>bitwise OR</em>'ing together
|
| * (that is, using the <code>int</code> "|" operator) two or more
|
| * of those <code>SWT</code> style constants. The class description
|
| * lists the style constants that are applicable to the class.
|
| * Style bits are also inherited from superclasses.
|
| * </p>
|
| * Note: Currently, null can be passed in for the parent.
|
| * This has the effect of creating the dialog on the currently active
|
| * display if there is one. If there is no current display, the
|
| * dialog is created on a "default" display. <b>Passing in null as
|
| * the parent is not considered to be good coding style,
|
| * and may not be supported in a future release of SWT.</b>
|
| * </p>
|
| *
|
| * @param parent a shell which will be the parent of the new instance
|
| *
|
| * @exception IllegalArgumentException <ul>
|
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
|
| * </ul>
|
| * @exception SWTException <ul>
|
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
|
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
|
| * </ul>
|
| */ |
| public FileDialog (Shell parent, int style) {
|
| super (parent, style);
|
| checkSubclass ();
|
| }
|
| /**
|
| * Returns the path of the first file that was
|
| * selected in the dialog relative to the filter path,
|
| * or empty string if the dialog was cancelled.
|
| *
|
| * @return the relative path of the file
|
| */ |
| public String getFileName () {
|
| return fileName;
|
| }
|
| /**
|
| * Returns the paths of all files that were selected
|
| * in the dialog relative to the filter path, or null
|
| * if none are available.
|
| *
|
| * @return the relative paths of the files
|
| */ |
| public String [] getFileNames () {
|
| return fileNames;
|
| }
|
| /**
|
| * Returns the file extensions which the dialog will
|
| * use to filter the files it shows.
|
| *
|
| * @return the file extensions filter
|
| */ |
| public String [] getFilterExtensions () {
|
| return filterExtensions;
|
| }
|
| /**
|
| * Returns the file names which the dialog will
|
| * use to filter the files it shows.
|
| *
|
| * @return the file name filter
|
| */ |
| public String [] getFilterNames () {
|
| return filterNames;
|
| }
|
| /**
|
| * Returns the directory path that the dialog will use.
|
| * File names in this path will appear in the dialog,
|
| * filtered according to the filter extensions.
|
| *
|
| * @return the directory path string
|
| *
|
| * @see #setFilterExtensions
|
| */ |
| public String getFilterPath () {
|
| return filterPath;
|
| }
|
|
|
| /**
|
| * Makes the dialog visible and brings it to the front
|
| * of the display.
|
| *
|
| * @return a string describing the absolute path of the first selected file,
|
| * or null if the dialog was cancelled or an error occurred
|
| *
|
| * @exception SWTException <ul>
|
| * <li>ERROR_WIDGET_DISPOSED - if the dialog has been disposed</li>
|
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the dialog</li>
|
| * </ul>
|
| */ |
| public String open () {
|
| /*
|
| * The only reason this method is not just left out to
|
| * fall through to the superclass, is the JavaDoc comment.
|
| */
|
| return super.open();
|
| }
|
| /**
|
| * Set the initial filename which the dialog will
|
| * select by default when opened to the argument,
|
| * which may be null. The name will be prefixed with
|
| * the filter path when one is supplied.
|
| *
|
| * @param string the file name
|
| */ |
| public void setFileName (String string) {
|
| fileName = string;
|
| }
|
| /**
|
| * Set the file extensions which the dialog will
|
| * use to filter the files it shows to the argument,
|
| * which may be null.
|
| *
|
| * @param extensions the file extension filter
|
| */ |
| public void setFilterExtensions (String [] extensions) {
|
| filterExtensions = extensions;
|
| }
|
| /**
|
| * Sets the file names which the dialog will
|
| * use to filter the files it shows to the argument,
|
| * which may be null.
|
| *
|
| * @param names the file name filter
|
| */ |
| public void setFilterNames (String [] names) {
|
| filterNames = names;
|
| }
|
| /**
|
| * Sets the directory path that the dialog will use
|
| * to the argument, which may be null. File names in this
|
| * path will appear in the dialog, filtered according
|
| * to the filter extensions.
|
| *
|
| * @param string the directory path
|
| *
|
| * @see #setFilterExtensions
|
| */ |
| public void setFilterPath (String string) {
|
| filterPath = string;
|
| }
|
| void preset() {
|
| if ((style & SWT.MULTI) != 0) {
|
| OS.gtk_file_selection_set_select_multiple(handle, true);
|
| } else {
|
| OS.gtk_file_selection_set_select_multiple(handle, false);
|
| }
|
| /* Calculate the fully-specified file name and convert to bytes */
|
| StringBuffer stringBuffer = new StringBuffer ();
|
| if (filterPath == null) {
|
| filterPath = "";
|
| } else {
|
| if (filterPath.length () > 0) {
|
| stringBuffer.append (filterPath);
|
| if (filterPath.charAt (filterPath.length () - 1) != separator) {
|
| stringBuffer.append (separator);
|
| }
|
| }
|
| }
|
| if (fileName == null) {
|
| fileName = "";
|
| } else {
|
| stringBuffer.append (fileName);
|
| }
|
| fullPath = stringBuffer.toString ();
|
| byte [] fullPathBytes = Converter.wcsToMbcs (null, fullPath, true);
|
| OS.gtk_file_selection_set_filename (handle, fullPathBytes);
|
|
|
| /* Set the extension */
|
| if (filterNames == null) filterNames = new String [0];
|
| if (filterExtensions == null) filterExtensions = new String [0];
|
| if (filterExtensions.length == 1) {
|
| String ext = filterExtensions [0];
|
| byte [] extBytes = Converter.wcsToMbcs (null, ext, true);
|
| OS.gtk_file_selection_complete (handle, extBytes);
|
| }
|
|
|
| fileName = null;
|
| fullPath = null;
|
| filterPath = null;
|
| }
|
|
|
| void interpretOsAnswer(String osAnswer) {
|
| if (osAnswer==null) return;
|
| int separatorIndex = calculateLastSeparatorIndex(osAnswer);
|
| if (separatorIndex+1 == osAnswer.length()) {
|
| /*
|
| * the selected thing is a directory
|
| */
|
| answer = null;
|
| return;
|
| }
|
| answer = fullPath = osAnswer;
|
| fileName = fullPath.substring(separatorIndex+1);
|
| filterPath = fullPath.substring(0, separatorIndex);
|
| if ((style&SWT.MULTI) == 0) {
|
| fileNames = new String[] {fileName};
|
| } else {
|
| int namesPtr = OS.gtk_file_selection_get_selections(handle);
|
| int namesPtr1 = namesPtr;
|
| int[] namePtr = new int[1];
|
| OS.memmove(namePtr, namesPtr1, 1);
|
| int length=0;
|
| while (namePtr[0] != 0) {
|
| length++;
|
| namesPtr1+=4; // PROBLEM CODE: depend on address size
|
| OS.memmove(namePtr, namesPtr1, 1);
|
| }
|
| fileNames = new String[length];
|
| namePtr = new int[length];
|
| OS.memmove(namePtr, namesPtr, length*4);
|
| for (int i=0; i<length; i++) {
|
| /*
|
| * NB: We can not use the Converter here, because
|
| * the mount charset/iocharset is different than the locale!
|
| */
|
| int bytesPtr = OS.g_filename_to_utf8(namePtr[i], -1, 0, 0, 0);
|
| if (bytesPtr==0) continue;
|
| // Careful! The size, not the length of the string
|
| byte[] bytes = new byte[OS.strlen(bytesPtr)];
|
| OS.memmove(bytes, bytesPtr, bytes.length);
|
| // The better way to do it would be:
|
| // fileNames[i] = new String(bytes);
|
| String name = new String(Converter.mbcsToWcs(null, bytes));
|
| fileNames[i] = name.substring(calculateLastSeparatorIndex(name)+1);
|
| /*
|
| * NB: Unlike other similar functions (e.g., g_convert), the glib
|
| * documentation does not say the resulting UTF8 string should be
|
| * freed. However, the strdup makes me believe the free is necessary.
|
| */
|
| OS.g_free(bytesPtr);
|
| }
|
| OS.g_strfreev(namesPtr);
|
| }
|
| }
|
|
|
| }
|
