diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Text.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Text.java | 1226 |
1 files changed, 0 insertions, 1226 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Text.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Text.java deleted file mode 100644 index b6f5f5c74e..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Text.java +++ /dev/null @@ -1,1226 +0,0 @@ -package org.eclipse.swt.widgets; - -/* - * (c) Copyright IBM Corp. 2000, 2001. - * All Rights Reserved - */ - -import org.eclipse.swt.*; -import org.eclipse.swt.internal.*; -import org.eclipse.swt.internal.gtk.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.events.*; - -/** - * Instances of this class are selectable user interface - * objects that allow the user to enter and modify text. - * <p> - * <dl> - * <dt><b>Styles:</b></dt> - * <dd>MULTI, SINGLE, READ_ONLY, WRAP</dd> - * <dt><b>Events:</b></dt> - * <dd>DefaultSelection, Modify, Verify</dd> - * </dl> - * </p> - * IMPORTANT: This class is <em>not</em> intended to be subclassed. - */ - -public class Text extends Scrollable { - int textLimit = 0xFFFF; - boolean visibility = true; - public final static int LIMIT; - public final static String DELIMITER; - /* - * These values can be different on different platforms. - * Therefore they are not initialized in the declaration - * to stop the compiler from inlining. - */ - static { - LIMIT = 0x7FFFFFFF; - DELIMITER = "\n"; - } - -/** - * 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 - * for all SWT widget classes should include a comment which - * describes the style constants which are applicable to the class. - * </p> - * - * @param parent a composite control which will be the parent of the new instance (cannot be null) - * @param style the style of control 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> - * - * @see SWT - * @see Widget#checkSubclass - * @see Widget#getStyle - */ -public Text (Composite parent, int style) { - super (parent, checkStyle (style)); -} - -void createHandle (int index) { - state |= HANDLE; - if ((style & SWT.SINGLE) != 0) { - handle = OS.gtk_entry_new (); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - } else { - scrolledHandle = OS.gtk_scrolled_window_new (0, 0); - if (scrolledHandle == 0) error (SWT.ERROR_NO_HANDLES); - handle = OS.gtk_text_new (0, 0); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - } -} - -void setHandleStyle() { - OS.gtk_editable_set_editable (handle, (style & SWT.READ_ONLY) == 0); - if ((style & SWT.SINGLE) == 0) - OS.gtk_text_set_word_wrap (handle, (style & SWT.WRAP) != 0 ? 1 : 0); - if (scrolledHandle!=0) setScrollingPolicy(); - // When 2.0 arrives, we'll be able to set the flat appearance - -} - -void configure() { - _connectParent(); - if (scrolledHandle != 0) { - OS.gtk_container_add (scrolledHandle, handle); - } -} - -void showHandle() { - if (scrolledHandle != 0) OS.gtk_widget_show (scrolledHandle); - OS.gtk_widget_show (handle); - OS.gtk_widget_realize (handle); -} - -void hookEvents () { - //TO DO - get rid of enter/exit for mouse crossing border - super.hookEvents(); - signal_connect_after (handle, "changed", SWT.Modify, 2); - signal_connect (handle, "insert_text", SWT.Verify, 5); - signal_connect (handle, "delete_text", SWT.Verify, 4); - signal_connect (handle, "activate", SWT.Selection, 2); -} - -/** - * Adds the listener to the collection of listeners who will - * be notified when the receiver's text is modified, by sending - * it one of the messages defined in the <code>ModifyListener</code> - * interface. - * - * @param listener the listener which should be notified - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see ModifyListener - * @see #removeModifyListener - */ -public void addModifyListener (ModifyListener listener) { - checkWidget (); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.Modify, typedListener); -} -/** - * Adds the listener to the collection of listeners who will - * be notified when the control is selected, by sending - * it one of the messages defined in the <code>SelectionListener</code> - * interface. - * <p> - * <code>widgetSelected</code> is not called for texts. - * <code>widgetDefaultSelected</code> is typically called when ENTER is pressed in a single-line text. - * </p> - * - * @param listener the listener which should be notified - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see SelectionListener - * @see #removeSelectionListener - * @see SelectionEvent - */ -public void addSelectionListener(SelectionListener listener) { - checkWidget (); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener(listener); - addListener(SWT.Selection,typedListener); - addListener(SWT.DefaultSelection,typedListener); -} -/** - * Adds the listener to the collection of listeners who will - * be notified when the receiver's text is verified, by sending - * it one of the messages defined in the <code>VerifyListener</code> - * interface. - * - * @param listener the listener which should be notified - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see VerifyListener - * @see #removeVerifyListener - */ -public void addVerifyListener (VerifyListener listener) { - if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS); - if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.Verify, typedListener); -} - -/** - * Appends a string. - * <p> - * The new text is appended to the text at - * the end of the widget. - * </p> - * - * @param string the string to be appended - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void append (String string) { - checkWidget (); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - byte [] buffer = Converter.wcsToMbcs (null, string); - if ((style & SWT.SINGLE) != 0) { - OS.gtk_entry_append_text(handle, buffer); - } else { - int length = getCharCount(); - int [] position = new int [] {length}; - OS.gtk_editable_insert_text (handle, buffer, buffer.length, position); - OS.gtk_editable_set_position (handle, position [0]); - } -} - -static int checkStyle (int style) { - if ((style & SWT.SINGLE) != 0) style &= ~(SWT.H_SCROLL | SWT.V_SCROLL); - if ((style & (SWT.SINGLE | SWT.MULTI)) != 0) return style; - if ((style & (SWT.H_SCROLL | SWT.V_SCROLL)) != 0) { - return style | SWT.MULTI; - } - return style | SWT.SINGLE; -} -/** - * Clears the selection. - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void clearSelection () { - checkWidget (); - int position = OS.gtk_editable_get_position (handle); - OS.gtk_editable_delete_selection(handle); - OS.gtk_editable_set_position (handle, position); -} - -/** - * Copies the selected text. - * <p> - * The current selection is copied to the clipboard. - * </p> - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void copy () { - checkWidget (); - byte [] clipboard = Converter.wcsToMbcs (null, "CLIPBOARD", true); - OS.gtk_selection_owner_set(handle, OS.gdk_atom_intern(clipboard, 0), 0); - GtkEditable widget = new GtkEditable (); - OS.memmove(widget, handle, GtkEditable.sizeof); - int start = Math.min(widget.selection_start_pos, widget.selection_end_pos); - int end = Math.max(widget.selection_start_pos, widget.selection_end_pos); - widget.clipboard_text = OS.gtk_editable_get_chars(handle, start, end); - OS.memmove (handle, widget, GtkEditable.sizeof); -} -/** - * Cuts the selected text. - * <p> - * The current selection is first copied to the - * clipboard and then deleted from the widget. - * </p> - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void cut () { - checkWidget (); - byte [] clipboard = Converter.wcsToMbcs (null, "CLIPBOARD", true); - OS.gtk_selection_owner_set(handle, OS.gdk_atom_intern(clipboard, 0), 0); - GtkEditable widget = new GtkEditable (); - OS.memmove (widget, handle, GtkEditable.sizeof); - int start = Math.min(widget.selection_start_pos, widget.selection_end_pos); - int end = Math.max(widget.selection_start_pos, widget.selection_end_pos); - widget.clipboard_text = OS.gtk_editable_get_chars(handle, start, end); - OS.memmove (handle, widget, GtkEditable.sizeof); - OS.gtk_editable_delete_text(handle, start, end); -} - -/** - * Gets the line number of the caret. - * <p> - * The line number of the caret is returned. - * </p> - * - * @return the line number - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public int getCaretLineNumber () { - checkWidget (); - int addr_index=getCaretPosition(); - String tmpString= new String(getText(0,addr_index)); - return getLineNumberInString(tmpString,'\n'); -} - -/** - * Gets the location the caret. - * <p> - * The location of the caret is returned. - * </p> - * - * @return a point, the location of the caret - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public Point getCaretLocation () { - checkWidget (); - GtkText gtktext = new GtkText (); - OS.memmove (gtktext, handle, GtkText.sizeof); - return new Point (gtktext.cursor_pos_x, gtktext.cursor_pos_y); -} - -/** - * Gets the position of the caret. - * <p> - * The character position of the caret is returned. - * </p> - * - * @return the position of the caret - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public int getCaretPosition () { - checkWidget (); - //return OS.gtk_text_get_point (handle); - return OS.gtk_editable_get_position (handle); -} - - -/** - * Gets the number of characters. - * - * @return number of characters in the widget - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public int getCharCount () { - checkWidget (); - if ((style & SWT.SINGLE) != 0) { - int address = OS.gtk_editable_get_chars (handle, 0, -1); - int length = OS.strlen (address); - OS.g_free (address); - return length; - } - return OS.gtk_text_get_length (handle); -} - -/** - * Gets the line delimiter. - * - * @return a string that is the line delimiter - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public String getLineDelimiter () { - checkWidget (); - return "\n"; -} -/** - * Gets the double click enabled flag. - * <p> - * The double click flag enables or disables the - * default action of the text widget when the user - * double clicks. - * </p> - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public boolean getDoubleClickEnabled () { - checkWidget (); - return true; -} -/** - * Gets the echo character. - * <p> - * The echo character is the character that is - * displayed when the user enters text or the - * text is changed by the programmer. - * </p> - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public char getEchoChar () { - checkWidget (); - return visibility ? '\0' : '*'; -} - -/** - * Gets the editable state. - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public boolean getEditable () { - checkWidget (); - GtkEditable widget = new GtkEditable (); - OS.memmove (widget, handle, GtkEditable.sizeof); - return widget.editable!=0; -} - -/** - * Gets the number of lines. - * - * @return the number of lines in the widget - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public int getLineCount () { - checkWidget (); - return getLineNumberInString(new String(getText()),'\n') + 1; -} -/** - * Gets the height of a line. - * - * @return the height of a row of text - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public int getLineHeight () { - checkWidget (); - Font font = getFont(); - GdkFont gdkfont = new GdkFont(); - int fontHandle = font.handle; - OS.memmove(gdkfont, fontHandle, GdkFont.sizeof); - return gdkfont.ascent + gdkfont.descent; - -} -/** - * Gets the position of the selected text. - * <p> - * Indexing is zero based. The range of - * a selection is from 0..N where N is - * the number of characters in the widget. - * </p> - * - * @return the start and end of the selection - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public Point getSelection () { - checkWidget (); - GtkEditable widget = new GtkEditable (); - OS.memmove (widget, handle, GtkEditable.sizeof); - return new Point (widget.selection_start_pos, widget.selection_end_pos); -} -/** - * Gets the number of selected characters. - * - * @return the number of selected characters. - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public int getSelectionCount () { - checkWidget (); - GtkEditable widget = new GtkEditable (); - OS.memmove (widget, handle, GtkEditable.sizeof); - int start = Math.min(widget.selection_start_pos, widget.selection_end_pos); - int end = Math.max(widget.selection_start_pos, widget.selection_end_pos); - return end - start; -} -/** - * Gets the selected text. - * - * @return the selected text - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public String getSelectionText () { - checkWidget (); - GtkEditable widget = new GtkEditable (); - OS.memmove (widget, handle, GtkEditable.sizeof); - int start = Math.min(widget.selection_start_pos,widget.selection_end_pos); - int end = Math.max(widget.selection_start_pos,widget.selection_end_pos); - int address = OS.gtk_editable_get_chars (handle, start, end); - int length = OS.strlen (address); - byte [] buffer1 = new byte [length]; - OS.memmove (buffer1, address, length); - OS.g_free (address); - char [] buffer2 = Converter.mbcsToWcs (null, buffer1); - return new String (buffer2, 0, buffer2.length); -} - -/** - * Gets the number of tabs. - * <p> - * Tab stop spacing is specified in terms of the - * space (' ') character. The width of a single - * tab stop is the pixel width of the spaces. - * </p> - * - * @return the number of tab characters - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public int getTabs () { - checkWidget (); - GtkText widget= new GtkText(); - OS.memmove(widget, handle, GtkText.sizeof); - return widget.default_tab_width; -} - -/** - * Gets the widget text. - * <p> - * The text for a text widget is the characters in the widget. - * </p> - * - * @return the widget text - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public String getText () { - checkWidget (); - int address = OS.gtk_editable_get_chars (handle, 0, -1); - int length = OS.strlen (address); - byte [] buffer1 = new byte [length]; - OS.memmove (buffer1, address, length); - OS.g_free (address); - char [] buffer2 = Converter.mbcsToWcs (null, buffer1); - return new String (buffer2, 0, buffer2.length); -} - -/** - * Gets a range of text. - * <p> - * Indexing is zero based. The range of - * a selection is from 0..N-1 where N is - * the number of characters in the widget. - * </p> - * - * @param start the start of the range - * @param end the end of the range - * @return the range of text - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public String getText (int start, int end) { - checkWidget (); - int address = OS.gtk_editable_get_chars (handle, start, end); - if (address == 0) return null; - int length = OS.strlen (address); - byte [] buffer1 = new byte [length]; - OS.memmove (buffer1, address, length); - OS.g_free (address); - char [] buffer2 = Converter.mbcsToWcs (null, buffer1); - return new String (buffer2, 0, buffer2.length); -} - -/** - * Returns the maximum number of characters that the receiver is capable of holding. - * <p> - * If this has not been changed by <code>setTextLimit()</code>, - * it will be the constant <code>Text.LIMIT</code>. - * </p> - * - * @return the text limit - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public int getTextLimit () { - checkWidget (); - if ((style & SWT.SINGLE) != 0) return textLimit; - return LIMIT; -} - -/** - * Returns the zero-relative index of the line which is currently - * at the top of the receiver. - * <p> - * This index can change when lines are scrolled or new lines are added or removed. - * </p> - * - * @return the index of the top line - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public int getTopIndex () { - checkWidget (); - if ((style & SWT.SINGLE) != 0) return 0; - GtkText widget = new GtkText (); - OS.memmove (widget, handle, GtkText.sizeof); - int topCharIndex=widget.first_line_start_index; - return (getLineNumberInString(getText(0,topCharIndex), '\n')); - //Since getText uses substring (start, end + 1),so topCharIndex-1 -} - -/** - * Gets the top pixel. - * <p> - * The top pixel is the pixel position of the line - * that is currently at the top of the widget. On - * some platforms, a text widget can be scrolled by - * pixels instead of lines so that a partial line - * is displayed at the top of the widget. - * </p><p> - * The top pixel changes when the widget is scrolled. - * The top pixel does not include the widget trimming. - * </p> - * - * @return the pixel position of the top line - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public int getTopPixel () { - checkWidget (); - if ((style & SWT.SINGLE) != 0) return 0; - GtkText widget= new GtkText(); - OS.memmove(widget, handle, GtkText.sizeof); - return widget.first_onscreen_ver_pixel; -} - -boolean getWrap () { - checkWidget (); - return false; -} - -/** - * Inserts a string. - * <p> - * The old selection is replaced with the new text. - * </p> - * - * @param string the string - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void insert (String string) { - checkWidget (); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - byte [] buffer = Converter.wcsToMbcs (null, string); - GtkEditable widget = new GtkEditable (); - OS.memmove (widget, handle, GtkEditable.sizeof); - int start = Math.min(widget.selection_start_pos, widget.selection_end_pos); - int end = Math.max(widget.selection_start_pos, widget.selection_end_pos); - OS.gtk_editable_delete_text (handle, start, end); - int [] position = new int [] {start}; - OS.gtk_editable_insert_text (handle, buffer, buffer.length, position); -} - -/** - * Pastes text from clipboard. - * <p> - * The selected text is deleted from the widget - * and new text inserted from the clipboard. - * </p> - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void paste () { - checkWidget (); - byte [] clipboard = Converter.wcsToMbcs (null, "CLIPBOARD", true); - byte [] compound = Converter.wcsToMbcs (null, "COMPOUND_TEXT", true); - int clipboard_atom = OS.gdk_atom_intern (clipboard, 0); - int compound_atom = OS.gdk_atom_intern (compound, 0); - OS.gtk_selection_convert(handle, clipboard_atom, compound_atom, 0); -} - -int processModify (int arg0, int arg1, int int2) { - sendEvent (SWT.Modify); - return 0; -} - -int processVerify (int int0, int int1, int int2) { - if (!hooks (SWT.Verify)) return 0; - if (int2 != 0) { - // Insert - if (int0 == 0 || int1==0){ - return 0; - } -// int length = OS.strlen (int0); - byte [] buffer1 = new byte [int1]; - OS.memmove (buffer1, int0, buffer1.length); - char [] buffer2 = Converter.mbcsToWcs (null, buffer1); - String oldText = new String (buffer2, 0, buffer2.length); - int [] position = new int [1]; - OS.memmove (position, int2, 4); - if (position [0] == -1) position [0] = OS.gtk_text_get_length (handle); - String newText = verifyText (oldText, position [0], position [0]); //WRONG POSITION - if (newText == null) { - byte [] insert_text = Converter.wcsToMbcs (null, "insert-text", true); - OS.gtk_signal_emit_stop_by_name (handle, insert_text); - return 0; - } - if (newText != oldText) { - int windowProc5 = getDisplay ().windowProc5; - byte [] buffer3 = Converter.wcsToMbcs (null, newText); - OS.gtk_signal_handler_block_by_func (handle, windowProc5, SWT.Verify); - OS.gtk_editable_insert_text (handle, buffer3, buffer3.length, position); - OS.gtk_signal_handler_unblock_by_func (handle, windowProc5, SWT.Verify); - byte [] insert_text = Converter.wcsToMbcs (null, "insert-text", true); - OS.gtk_signal_emit_stop_by_name (handle, insert_text); - return 0; - } - } else { - // Delete - int address = OS.gtk_editable_get_chars (handle, int0, int1); - int length = OS.strlen (address); - byte [] buffer1 = new byte [length]; - OS.memmove (buffer1, address, length); - OS.g_free (address); - char [] buffer2 = Converter.mbcsToWcs (null, buffer1); - String oldText = new String (buffer2, 0, buffer2.length); - String newText = verifyText (oldText, int0, int1); - if (newText == null) { - byte [] delete_text = Converter.wcsToMbcs (null, "delete-text", true); - OS.gtk_signal_emit_stop_by_name (handle, delete_text); - return 0; - } - } - return 0; -} - -int processSelection (int int0, int int1, int int2) { - postEvent (SWT.DefaultSelection); - return 0; -} - -/** - * Removes the listener from the collection of listeners who will - * be notified when the receiver's text is modified. - * - * @param listener the listener which should no longer be notified - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see ModifyListener - * @see #addModifyListener - */ -public void removeModifyListener (ModifyListener listener) { - checkWidget (); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.Modify, listener); -} - -/** - * Removes the listener from the collection of listeners who will - * be notified when the control is selected. - * - * @param listener the listener which should be notified - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see SelectionListener - * @see #addSelectionListener - */ -public void removeSelectionListener(SelectionListener listener) { - checkWidget (); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook(SWT.Selection, listener); - eventTable.unhook(SWT.DefaultSelection,listener); -} - -/** - * Removes the listener from the collection of listeners who will - * be notified when the control is verified. - * - * @param listener the listener which should be notified - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see VerifyListener - * @see #addVerifyListener - */ -public void removeVerifyListener (VerifyListener listener) { - checkWidget (); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.Verify, listener); -} - -/** - * Selects all the text in the receiver. - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void selectAll () { - checkWidget (); - OS.gtk_editable_select_region (handle, 0, -1); -} - -/** - * Sets the double click enabled flag. - * <p> - * The double click flag enables or disables the - * default action of the text widget when the user - * double clicks. - * </p> - * - * @param doubleClick the new double click flag - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setDoubleClickEnabled (boolean doubleClick) { - checkWidget (); -} - -/** - * Sets the echo character. - * <p> - * The echo character is the character that is - * displayed when the user enters text or the - * text is changed by the programmer. - * </p> - * - * @param echo the new echo character - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setEchoChar (char echo) { - checkWidget (); - if ((style & SWT.SINGLE) != 0) { - OS.gtk_entry_set_visibility (handle, visibility = echo == '\0'); - } -} - -/** - * Sets the editable state. - * - * @param editable the new editable state - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setEditable (boolean editable) { - checkWidget (); - OS.gtk_editable_set_editable (handle, editable); -} - -/** - * Sets the selection. - * <p> - * Indexing is zero based. The range of - * a selection is from 0..N where N is - * the number of characters in the widget. - * </p><p> - * Text selections are specified in terms of - * caret positions. In a text widget that - * contains N characters, there are N+1 caret - * positions, ranging from 0..N. This differs - * from other functions that address character - * position such as getText () that use the - * regular array indexing rules. - * </p> - * - * @param start new caret position - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setSelection (int start) { - checkWidget (); - OS.gtk_editable_set_position (handle, start); -} - -/** - * Sets the selection. - * <p> - * Indexing is zero based. The range of - * a selection is from 0..N where N is - * the number of characters in the widget. - * </p><p> - * Text selections are specified in terms of - * caret positions. In a text widget that - * contains N characters, there are N+1 caret - * positions, ranging from 0..N. This differs - * from other functions that address character - * position such as getText () that use the - * usual array indexing rules. - * </p> - * - * @param start the start of the range - * @param end the end of the range - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setSelection (int start, int end) { - checkWidget (); - OS.gtk_editable_set_position (handle, start); - OS.gtk_editable_select_region (handle, start, end); -} - -/** - * Sets the selection. - * <p> - * Indexing is zero based. The range of - * a selection is from 0..N where N is - * the number of characters in the widget. - * </p><p> - * Text selections are specified in terms of - * caret positions. In a text widget that - * contains N characters, there are N+1 caret - * positions, ranging from 0..N. This differs - * from other functions that address character - * position such as getText () that use the - * usual array indexing rules. - * </p> - * - * @param selection the point - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setSelection (Point selection) { - checkWidget (); - if (selection == null) error (SWT.ERROR_NULL_ARGUMENT); - OS.gtk_editable_set_position (handle, selection.x); - OS.gtk_editable_select_region (handle, selection.x, selection.y); -} - - /** - * Sets the number of tabs. - * <p> - * Tab stop spacing is specified in terms of the - * space (' ') character. The width of a single - * tab stop is the pixel width of the spaces. - * </p> - * - * @param tabs the number of tabs - * - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> -*/ -public void setTabs (int tabs) { - checkWidget (); - GtkText widget= new GtkText(); - widget.default_tab_width=tabs; - OS.memmove(handle, widget, GtkText.sizeof); -} - -/** - * Sets the contents of the receiver to the given string. - * - * @param text the new text - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setText (String string) { - checkWidget (); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - OS.gtk_editable_delete_text (handle, 0, -1); - int [] position = new int [1]; - byte [] buffer = Converter.wcsToMbcs (null, string); - OS.gtk_editable_insert_text (handle, buffer, buffer.length, position); - OS.gtk_editable_set_position (handle, 0); -} - -/** - * Sets the maximum number of characters that the receiver - * is capable of holding to be the argument. - * - * @param limit new text limit - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_CANNOT_BE_ZERO - if the limit is zero</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setTextLimit (int limit) { - checkWidget (); - if (limit == 0) error (SWT.ERROR_CANNOT_BE_ZERO); - if ((style & SWT.SINGLE) != 0) { - textLimit = (short) limit; - OS.gtk_entry_set_max_length (handle, (short) limit); - } -} - -/** - * Sets the zero-relative index of the line which is currently - * at the top of the receiver. This index can change when lines - * are scrolled or new lines are added and removed. - * - * @param index the index of the top item - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setTopIndex (int index) { - checkWidget (); - if ((style & SWT.SINGLE) != 0) return; - if (index > getLineCount()) return; - GtkAdjustment adjustment = new GtkAdjustment(); - int adjustmentHandle = OS.gtk_scrolled_window_get_vadjustment(scrolledHandle); - OS.memmove(adjustment, adjustmentHandle, GtkAdjustment.sizeof); - int adjust = (int)(index*adjustment.upper/getLineCount()); - if (adjust <= 0) { - adjust = 0; - verticalBar.setSelection(0); - } else { - verticalBar.setSelection(adjust); - } - OS.gtk_adjustment_value_changed(verticalBar.handle); - int topindex=getTopIndex(); - int lineheight = getLineHeight(); - while( topindex != index) { - adjust=adjust+lineheight; - verticalBar.setSelection(adjust+lineheight); - OS.gtk_adjustment_value_changed(verticalBar.handle); - topindex=getTopIndex(); - } -} - -void setWrap (boolean wrap) { - checkWidget (); - OS.gtk_text_set_word_wrap(handle, wrap ? 1 : 0); -} - -/** - * Shows the selection. - * <p> - * If the selection is already showing - * in the receiver, this method simply returns. Otherwise, - * lines are scrolled until the selection is visible. - * </p> - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void showSelection () { - checkWidget (); - if ((style & SWT.SINGLE) != 0) return; - int start_pos, end_pos, pos; - pos = OS.gtk_editable_get_position (handle); - GtkEditable widget = new GtkEditable (); - OS.memmove (widget, handle, GtkEditable.sizeof); - start_pos = Math.min(widget.selection_start_pos, widget.selection_end_pos) ; - end_pos = Math.max(widget.selection_start_pos, widget.selection_end_pos) ; - GtkText gtktext = new GtkText (); - OS.memmove (gtktext, handle, GtkText.sizeof); - int topCharIndex=gtktext.first_line_start_index; - if ( (topCharIndex > start_pos && topCharIndex < end_pos) || topCharIndex==start_pos || - topCharIndex == end_pos) return; - if (pos < start_pos || pos > end_pos) { - GtkAdjustment adjustment = new GtkAdjustment(); - int adjustmentHandle = OS.gtk_scrolled_window_get_vadjustment(scrolledHandle); - OS.memmove(adjustment, adjustmentHandle, GtkAdjustment.sizeof); - String tmpString= new String(getText(0,start_pos)); - int currentln=getLineNumberInString(tmpString, '\n'); - int adjust = (int)(currentln*adjustment.upper/getLineCount()-adjustment.page_increment); - if (adjust <= 0) - OS.gtk_adjustment_set_value (verticalBar.handle, 0); - else - OS.gtk_adjustment_set_value (verticalBar.handle, adjust); - OS.gtk_adjustment_value_changed(verticalBar.handle); - OS.gtk_editable_set_position (handle, widget.selection_end_pos); - OS.gtk_editable_select_region (handle, widget.selection_start_pos, widget.selection_end_pos); - } - -} - -String verifyText (String string, int start, int end) { - Event event = new Event (); - event.text = string; - event.start = start; - event.end = end; - sendEvent (SWT.Verify, event); - if (!event.doit) return null; - return event.text; -} - -int getLineNumberInString( String string,char delimiter) { - int count=0; - for (int i=0; i<string.length (); i++) { - if (string.charAt (i) == delimiter) count++; - } - return count; -} - -} |