Mercurial > projects > dwt2
view org.eclipse.swt.gtk.linux.x86/src/org/eclipse/swt/widgets/DirectoryDialog.d @ 48:ddbfe84d86df
[swt lin] versioned imports
author | Frank Benoit <benoit@tionex.de> |
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date | Fri, 27 Mar 2009 12:05:20 +0100 |
parents | f713da8bc051 |
children | 7a2dd761a8b2 |
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/******************************************************************************* * Copyright (c) 2000, 2008 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation * Port to the D programming language: * Frank Benoit <benoit@tionex.de> *******************************************************************************/ module org.eclipse.swt.widgets.DirectoryDialog; import java.lang.all; import org.eclipse.swt.SWT; import org.eclipse.swt.SWTException; import org.eclipse.swt.internal.gtk.OS; import org.eclipse.swt.widgets.Dialog; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Display; version(Tango){ static import tango.io.model.IFile; static import tango.text.Util; } else { // Phobos } /** * Instances of this class allow the user to navigate * the file system and select a directory. * <dl> * <dt><b>Styles:</b></dt> * <dd>(none)</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> * * @see <a href="http://www.eclipse.org/swt/snippets/#directorydialog">DirectoryDialog snippets</a> * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample, Dialog tab</a> * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> */ public class DirectoryDialog : Dialog { String message = "", filterPath = ""; static const String SEPARATOR = tango.io.model.IFile.FileConst.PathSeparatorString; /** * Constructs a new instance of this class given only its parent. * * @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 this (Shell parent) { this (parent, SWT.APPLICATION_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> * * @param parent a shell which will be the parent of the new instance * @param style the style of dialog to construct * * @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 this (Shell parent, int style) { super (parent, checkStyle (parent, style)); checkSubclass (); } /** * Returns the path which the dialog will use to filter * the directories it shows. * * @return the filter path * * @see #setFilterPath */ public String getFilterPath () { return filterPath; } /** * Returns the dialog's message, which is a description of * the purpose for which it was opened. This message will be * visible on the dialog while it is open. * * @return the message */ public String getMessage () { return message; } /** * Makes the dialog visible and brings it to the front * of the display. * * @return a string describing the absolute path of the selected directory, * 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 () { bool useChooserDialog = OS.GTK_VERSION >= OS.buildVERSION (2, 4, 10); if (useChooserDialog) { return openChooserDialog (); } else { return openClassicDialog (); } } String openChooserDialog () { char* titleBytes = toStringz(title); auto shellHandle = parent.topHandle (); auto handle = OS.gtk_file_chooser_dialog_new2 ( titleBytes, shellHandle, OS.GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER, OS.GTK_STOCK_CANCEL (), OS.GTK_RESPONSE_CANCEL, OS.GTK_STOCK_OK (), OS.GTK_RESPONSE_OK ); auto pixbufs = OS.gtk_window_get_icon_list (shellHandle); if (pixbufs !is null) { OS.gtk_window_set_icon_list (handle, pixbufs); OS.g_list_free (pixbufs); } if (filterPath !is null && filterPath.length > 0) { String p; /* filename must be a full path */ if ( filterPath[ 0 .. SEPARATOR.length ] != SEPARATOR ) { p ~= SEPARATOR; p ~= filterPath; } else{ p = filterPath; } char* buffer = toStringz(p); /* * Bug in GTK. GtkFileChooser may crash on GTK versions 2.4.10 to 2.6 * when setting a file name that is not a true canonical path. * The fix is to use the canonical path. */ char* ptr = OS.realpath (buffer, null); if (ptr !is null) { OS.gtk_file_chooser_set_current_folder (handle, ptr); OS.g_free (ptr); } } if (message.length > 0) { char* buffer = toStringz(message); auto box = OS.gtk_hbox_new (false, 0); if (box is null) error (SWT.ERROR_NO_HANDLES); auto label = OS.gtk_label_new (buffer); if (label is null) error (SWT.ERROR_NO_HANDLES); OS.gtk_container_add (box, label); OS.gtk_widget_show (label); OS.gtk_label_set_line_wrap (label, true); OS.gtk_label_set_justify (label, OS.GTK_JUSTIFY_CENTER); OS.gtk_file_chooser_set_extra_widget (handle, box); } String answer = null; Display display = parent !is null ? parent.getDisplay (): Display.getCurrent (); display.addIdleProc (); Dialog oldModal = null; if (OS.gtk_window_get_modal (handle)) { oldModal = display.getModalDialog (); display.setModalDialog (this); } int signalId = 0; int /*long*/ hookId = 0; CallbackData emissionData; emissionData.display = display; emissionData.data = handle; if ((style & SWT.RIGHT_TO_LEFT) !is 0) { signalId = OS.g_signal_lookup (OS.map.ptr, OS.GTK_TYPE_WIDGET()); hookId = OS.g_signal_add_emission_hook (signalId, 0, &Display.emissionFunc, &emissionData, null); } int response = OS.gtk_dialog_run (handle); if ((style & SWT.RIGHT_TO_LEFT) !is 0) { OS.g_signal_remove_emission_hook (signalId, hookId); } if (OS.gtk_window_get_modal (handle)) { display.setModalDialog (oldModal); } if (response is OS.GTK_RESPONSE_OK) { auto path = OS.gtk_file_chooser_get_filename (handle); if (path !is null) { uint items_written; auto utf8Ptr = OS.g_filename_to_utf8 (path, -1, null, &items_written, null); OS.g_free (path); if (utf8Ptr !is null) { answer = utf8Ptr[ 0 .. items_written ].dup; filterPath = answer; OS.g_free (utf8Ptr); } } } display.removeIdleProc (); OS.gtk_widget_destroy (handle); return answer; } String openClassicDialog () { char* titleBytes = toStringz(title); auto handle = OS.gtk_file_selection_new (titleBytes); if (parent !is null) { auto shellHandle = parent.topHandle (); OS.gtk_window_set_transient_for (handle, shellHandle); auto pixbufs = OS.gtk_window_get_icon_list (shellHandle); if (pixbufs !is null) { OS.gtk_window_set_icon_list (handle, pixbufs); OS.g_list_free (pixbufs); } } String answer = null; if (filterPath !is null) { String path = filterPath; if (path.length > 0 && path[ $-1 .. $ ] != SEPARATOR ) { path ~= SEPARATOR; } char* fileNamePtr = OS.g_filename_from_utf8 (toStringz(path), -1, null, null, null); OS.gtk_file_selection_set_filename (handle, fileNamePtr); OS.g_free (fileNamePtr); } GtkFileSelection* selection = cast(GtkFileSelection*)handle; OS.gtk_file_selection_hide_fileop_buttons (handle); auto fileListParent = OS.gtk_widget_get_parent (selection.file_list); OS.gtk_widget_hide (selection.file_list); OS.gtk_widget_hide (fileListParent); if (message.length > 0) { auto labelHandle = OS.gtk_label_new (toStringz(message)); OS.gtk_label_set_line_wrap (labelHandle, true); OS.gtk_misc_set_alignment (labelHandle, 0.0f, 0.0f); OS.gtk_container_add (selection.main_vbox, labelHandle); OS.gtk_box_set_child_packing ( selection.main_vbox, labelHandle, false, false, 0, OS.GTK_PACK_START); OS.gtk_widget_show (labelHandle); } Display display = parent !is null ? parent.getDisplay (): Display.getCurrent (); display.addIdleProc (); Dialog oldModal = null; if (OS.gtk_window_get_modal (handle)) { oldModal = display.getModalDialog (); display.setModalDialog (this); } int signalId = 0; int /*long*/ hookId = 0; CallbackData emissionData; emissionData.display = display; emissionData.data = handle; if ((style & SWT.RIGHT_TO_LEFT) !is 0) { signalId = OS.g_signal_lookup (OS.map.ptr, OS.GTK_TYPE_WIDGET()); hookId = OS.g_signal_add_emission_hook (signalId, 0, &Display.emissionFunc, &emissionData, null); } int response = OS.gtk_dialog_run (handle); if ((style & SWT.RIGHT_TO_LEFT) !is 0) { OS.g_signal_remove_emission_hook (signalId, hookId); } if (OS.gtk_window_get_modal (handle)) { display.setModalDialog (oldModal); } if (response is OS.GTK_RESPONSE_OK) { char* fileNamePtr = OS.gtk_file_selection_get_filename (handle); uint items_written; char* utf8Ptr = OS.g_filename_to_utf8 (fileNamePtr, -1, null, &items_written, null); if (utf8Ptr !is null) { String osAnswer = utf8Ptr[ 0 .. items_written ]; if (osAnswer.length !is 0) { /* remove trailing separator, unless root directory */ if ( osAnswer != SEPARATOR && osAnswer[ $-1 .. $ ] == SEPARATOR ) { osAnswer = osAnswer[ 0 .. $ - 1 ]; } answer = filterPath = osAnswer.dup; } OS.g_free (utf8Ptr); } } display.removeIdleProc (); OS.gtk_widget_destroy (handle); return answer; } /** * Sets the path that the dialog will use to filter * the directories it shows to the argument, which may * be null. If the string is null, then the operating * system's default filter path will be used. * <p> * Note that the path string is platform dependent. * For convenience, either '/' or '\' can be used * as a path separator. * </p> * * @param string the filter path */ public void setFilterPath (String string) { filterPath = string.dup; } /** * Sets the dialog's message, which is a description of * the purpose for which it was opened. This message will be * visible on the dialog while it is open. * * @param string the message * */ public void setMessage (String string) { // SWT extension: allow null for zero length string //if (string is null) error (SWT.ERROR_NULL_ARGUMENT); message = string.dup; } }