| /******************************************************************************* |
| * Copyright (c) 2000, 2018 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| |
| import java.util.*; |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.events.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.gtk.*; |
| import org.eclipse.swt.internal.gtk3.*; |
| import org.eclipse.swt.internal.gtk4.*; |
| |
| /** |
| * Instances of this class are selectable user interface |
| * objects that allow the user to enter and modify text. |
| * Text controls can be either single or multi-line. |
| * When a text control is created with a border, the |
| * operating system includes a platform specific inset |
| * around the contents of the control. When created |
| * without a border, an effort is made to remove the |
| * inset such that the preferred size of the control |
| * is the same size as the contents. |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>CENTER, ICON_CANCEL, ICON_SEARCH, LEFT, MULTI, PASSWORD, SEARCH, SINGLE, RIGHT, READ_ONLY, WRAP</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>DefaultSelection, Modify, Verify, OrientationChange</dd> |
| * </dl> |
| * <p> |
| * Note: Only one of the styles MULTI and SINGLE may be specified, |
| * and only one of the styles LEFT, CENTER, and RIGHT may be specified. |
| * </p> |
| * <p> |
| * Note: The styles ICON_CANCEL and ICON_SEARCH are hints used in combination with SEARCH. |
| * When the platform supports the hint, the text control shows these icons. When an icon |
| * is selected, a default selection event is sent with the detail field set to one of |
| * ICON_CANCEL or ICON_SEARCH. Normally, application code does not need to check the |
| * detail. In the case of ICON_CANCEL, the text is cleared before the default selection |
| * event is sent causing the application to search for an empty string. |
| * </p> |
| * <p> |
| * Note: Some text actions such as Undo are not natively supported on all platforms. |
| * </p> |
| * <p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| * |
| * @see <a href="http://www.eclipse.org/swt/snippets/#text">Text snippets</a> |
| * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> |
| * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| public class Text extends Scrollable { |
| |
| // allows to disable context menu entry for "insert emoji" |
| private static final boolean DISABLE_EMOJI = Boolean.getBoolean("SWT_GTK_INPUT_HINT_NO_EMOJI"); |
| |
| long bufferHandle; |
| long imContext; |
| int tabs = 8, lastEventTime = 0; |
| long gdkEventKey = 0; |
| int fixStart = -1, fixEnd = -1; |
| boolean doubleClick; |
| String message = ""; |
| |
| /** GTK4 only field, holds the address to the underlying GtkText widget. */ |
| long textHandle; |
| |
| static final char LTR_MARK = '\u200e'; |
| static final char RTL_MARK = '\u200f'; |
| int[] segments; |
| |
| static final int ITER_SIZEOF = GTK.GtkTextIter_sizeof(); |
| static final int SPACE_FOR_CURSOR = 1; |
| |
| /** |
| * The maximum number of characters that can be entered |
| * into a text widget. |
| * <p> |
| * Note that this value is platform dependent, based upon |
| * the native widget implementation. |
| * </p> |
| */ |
| public final static int LIMIT; |
| /** |
| * The delimiter used by multi-line text widgets. When text |
| * is queried and from the widget, it will be delimited using |
| * this delimiter. |
| */ |
| 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"; |
| } |
| /* Text uses non-standard CSS to set its background color, so we need |
| * a global variable to keep track of its background color. |
| */ |
| GdkRGBA background, foreground; |
| long indexMark = 0; |
| double cachedAdjustment, currentAdjustment; |
| |
| /** |
| * 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 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#SINGLE |
| * @see SWT#MULTI |
| * @see SWT#READ_ONLY |
| * @see SWT#WRAP |
| * @see SWT#LEFT |
| * @see SWT#RIGHT |
| * @see SWT#CENTER |
| * @see SWT#PASSWORD |
| * @see SWT#SEARCH |
| * @see SWT#ICON_SEARCH |
| * @see SWT#ICON_CANCEL |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public Text (Composite parent, int style) { |
| super (parent, checkStyle (style)); |
| if ((style & SWT.SEARCH) != 0) { |
| /* |
| * Ensure that SWT.ICON_CANCEL and ICON_SEARCH are set. |
| * NOTE: ICON_CANCEL has the same value as H_SCROLL and CON_SEARCH has the same value as V_SCROLL |
| * so it is necessary to first clear these bits to avoid a scroll bar and then reset the |
| * bit using the original style upplied by the programmer. |
| * |
| * NOTE2: Default GtkSearchEntry shows both "find" icon and "clear" icon. |
| * "find" icon can be manually removed here while "clear" icon must be removed depending on text. |
| * See gtk_changed. |
| */ |
| this.style |= SWT.ICON_SEARCH | SWT.ICON_CANCEL; |
| |
| if ((style & SWT.ICON_SEARCH) == 0) { |
| this.style &= ~SWT.ICON_SEARCH; |
| GTK.gtk_entry_set_icon_from_icon_name(handle, GTK.GTK_ENTRY_ICON_PRIMARY, null); |
| } else { |
| // Default GtkSearchEntry always shows inactive "find" icon |
| // make it active and sensitive to be consistent with other platforms |
| GTK.gtk_entry_set_icon_activatable(handle, GTK.GTK_ENTRY_ICON_PRIMARY, true); |
| GTK.gtk_entry_set_icon_sensitive(handle, GTK.GTK_ENTRY_ICON_PRIMARY, true); |
| } |
| |
| if ((style & SWT.ICON_CANCEL) == 0) { |
| this.style &= ~SWT.ICON_CANCEL; |
| } |
| } |
| if (DISABLE_EMOJI && GTK.GTK_VERSION >= OS.VERSION(3, 22, 20)) { |
| GTK4.gtk_entry_set_input_hints(handle, GTK.GTK_INPUT_HINT_NO_EMOJI); |
| } |
| } |
| |
| static int checkStyle (int style) { |
| if ((style & SWT.SEARCH) != 0) { |
| style |= SWT.SINGLE | SWT.BORDER; |
| style &= ~SWT.PASSWORD; |
| /* |
| * NOTE: ICON_CANCEL has the same value as H_SCROLL and |
| * ICON_SEARCH has the same value as V_SCROLL so they are |
| * cleared because SWT.SINGLE is set. |
| */ |
| } |
| if ((style & SWT.SINGLE) != 0 && (style & SWT.MULTI) != 0) { |
| style &= ~SWT.MULTI; |
| } |
| style = checkBits (style, SWT.LEFT, SWT.CENTER, SWT.RIGHT, 0, 0, 0); |
| if ((style & SWT.SINGLE) != 0) style &= ~(SWT.H_SCROLL | SWT.V_SCROLL | SWT.WRAP); |
| if ((style & SWT.WRAP) != 0) { |
| style |= SWT.MULTI; |
| style &= ~SWT.H_SCROLL; |
| } |
| if ((style & SWT.MULTI) != 0) style &= ~SWT.PASSWORD; |
| 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; |
| } |
| |
| @Override |
| void createHandle (int index) { |
| state |= HANDLE | MENU; |
| if ((style & SWT.READ_ONLY) != 0) { |
| if (applyThemeBackground() == 1) { |
| state |= THEME_BACKGROUND; |
| } |
| } |
| |
| fixedHandle = OS.g_object_new(display.gtk_fixed_get_type (), 0); |
| if (fixedHandle == 0) error(SWT.ERROR_NO_HANDLES); |
| if ((style & SWT.SINGLE) != 0) { |
| if ((style & SWT.SEARCH) != 0) { |
| handle = GTK.gtk_search_entry_new(); |
| } else { |
| handle = GTK.gtk_entry_new(); |
| } |
| if (handle == 0) error(SWT.ERROR_NO_HANDLES); |
| |
| if (GTK.GTK4) { |
| OS.swt_fixed_add(fixedHandle, handle); |
| textHandle = GTK4.gtk_widget_get_first_child(handle); |
| bufferHandle = GTK4.gtk_entry_get_buffer(handle); |
| } else { |
| GTK3.gtk_widget_set_has_window(fixedHandle, true); |
| GTK3.gtk_container_add(fixedHandle, handle); |
| } |
| |
| GTK.gtk_editable_set_editable(handle, (style & SWT.READ_ONLY) == 0); |
| GTK.gtk_entry_set_visibility(handle, (style & SWT.PASSWORD) == 0); |
| /* |
| * We need to handle borders differently in GTK3.20+. GtkEntry without frame will have a blank background color. |
| * So let's set border via css and override the background in this case to be COLOR_LIST_BACKGROUND. |
| */ |
| if ((style & SWT.BORDER) == 0) { |
| GTK.gtk_entry_set_has_frame(handle, false); |
| long context = GTK.gtk_widget_get_style_context(handle); |
| String background = display.gtk_rgba_to_css_string(display.COLOR_LIST_BACKGROUND_RGBA); |
| gtk_css_provider_load_from_css(context, "entry {border: solid; background: " + background + ";}"); |
| GTK.gtk_style_context_invalidate(context); |
| } |
| |
| float alignment = 0.0f; |
| if ((style & SWT.CENTER) != 0) alignment = 0.5f; |
| if ((style & SWT.RIGHT) != 0) alignment = 1.0f; |
| if (alignment > 0.0f) { |
| GTK.gtk_entry_set_alignment (handle, alignment); |
| } |
| } else { |
| if (GTK.GTK4) { |
| scrolledHandle = GTK4.gtk_scrolled_window_new(); |
| } else { |
| scrolledHandle = GTK3.gtk_scrolled_window_new (0, 0); |
| } |
| if (scrolledHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| handle = GTK.gtk_text_view_new (); |
| if (handle == 0) error (SWT.ERROR_NO_HANDLES); |
| bufferHandle = GTK.gtk_text_view_get_buffer (handle); |
| if (bufferHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| |
| if (GTK.GTK4) { |
| OS.swt_fixed_add(fixedHandle, scrolledHandle); |
| GTK4.gtk_scrolled_window_set_child(scrolledHandle, handle); |
| } else { |
| GTK3.gtk_container_add (fixedHandle, scrolledHandle); |
| GTK3.gtk_container_add (scrolledHandle, handle); |
| } |
| |
| GTK.gtk_text_view_set_editable (handle, (style & SWT.READ_ONLY) == 0); |
| if ((style & SWT.WRAP) != 0) GTK.gtk_text_view_set_wrap_mode (handle, GTK.GTK_WRAP_WORD_CHAR); |
| int hsp = (style & SWT.H_SCROLL) != 0 ? GTK.GTK_POLICY_ALWAYS : GTK.GTK_POLICY_NEVER; |
| int vsp = (style & SWT.V_SCROLL) != 0 ? GTK.GTK_POLICY_ALWAYS : GTK.GTK_POLICY_NEVER; |
| GTK.gtk_scrolled_window_set_policy (scrolledHandle, hsp, vsp); |
| if ((style & SWT.BORDER) != 0) { |
| if (GTK.GTK4) { |
| GTK4.gtk_scrolled_window_set_has_frame(scrolledHandle, true); |
| } else { |
| GTK3.gtk_scrolled_window_set_shadow_type (scrolledHandle, GTK.GTK_SHADOW_ETCHED_IN); |
| } |
| } |
| int just = GTK.GTK_JUSTIFY_LEFT; |
| if ((style & SWT.CENTER) != 0) just = GTK.GTK_JUSTIFY_CENTER; |
| if ((style & SWT.RIGHT) != 0) just = GTK.GTK_JUSTIFY_RIGHT; |
| GTK.gtk_text_view_set_justification (handle, just); |
| } |
| imContext = OS.imContextLast(); |
| if ((style & SWT.SINGLE) != 0) { |
| GTK3.gtk_entry_set_width_chars(handle, 1); |
| } |
| // In GTK 3 font description is inherited from parent widget which is not how SWT has always worked, |
| // reset to default font to get the usual behavior |
| setFontDescription(defaultFont().handle); |
| } |
| |
| @Override |
| int applyThemeBackground () { |
| return (backgroundAlpha == 0 || (style & (SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL)) == 0) ? 1 : 0; |
| } |
| |
| @Override |
| void createWidget (int index) { |
| super.createWidget (index); |
| doubleClick = true; |
| } |
| |
| /** |
| * 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 a segment listener. |
| * <p> |
| * A <code>SegmentEvent</code> is sent whenever text content is being modified or |
| * a segment listener is added or removed. You can |
| * customize the appearance of text by indicating certain characters to be inserted |
| * at certain text offsets. This may be used for bidi purposes, e.g. when |
| * adjacent segments of right-to-left text should not be reordered relative to |
| * each other. |
| * E.g., multiple Java string literals in a right-to-left language |
| * should generally remain in logical order to each other, that is, the |
| * way they are stored. |
| * </p> |
| * <p> |
| * <b>Warning</b>: This API is currently only implemented on Windows and GTK. |
| * <code>SegmentEvent</code>s won't be sent on Cocoa. |
| * </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 SegmentEvent |
| * @see SegmentListener |
| * @see #removeSegmentListener |
| * |
| * @since 3.8 |
| */ |
| public void addSegmentListener (SegmentListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| addListener (SWT.Segments, new TypedListener (listener)); |
| clearSegments (true); |
| applySegments (); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the control is selected by the user, 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, |
| * or when ENTER is pressed in a search text. If the receiver has the <code>SWT.SEARCH | SWT.ICON_CANCEL</code> style |
| * and the user cancels the search, the event object detail field contains the value <code>SWT.ICON_CANCEL</code>. |
| * Likewise, if the receiver has the <code>SWT.ICON_SEARCH</code> style and the icon search is selected, the |
| * event object detail field contains the value <code>SWT.ICON_SEARCH</code>. |
| * </p> |
| * |
| * @param listener the listener which should be notified when the control is selected by the user |
| * |
| * @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) { |
| checkWidget(); |
| 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 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 append (String string) { |
| checkWidget (); |
| if (string == null) error (SWT.ERROR_NULL_ARGUMENT); |
| byte [] buffer = Converter.wcsToMbcs (string, false); |
| clearSegments (true); |
| if ((style & SWT.SINGLE) != 0) { |
| GTK.gtk_editable_insert_text (handle, buffer, buffer.length, new int[]{-1}); |
| GTK.gtk_editable_set_position (handle, -1); |
| } else { |
| byte [] position = new byte [ITER_SIZEOF]; |
| GTK.gtk_text_buffer_get_end_iter (bufferHandle, position); |
| GTK.gtk_text_buffer_insert (bufferHandle, position, buffer, buffer.length); |
| GTK.gtk_text_buffer_place_cursor (bufferHandle, position); |
| long mark = GTK.gtk_text_buffer_get_insert (bufferHandle); |
| GTK.gtk_text_view_scroll_to_mark (handle, mark, 0, true, 0, 0); |
| } |
| applySegments (); |
| } |
| |
| void applySegments () { |
| /* |
| * It is possible (but unlikely), that application code could have |
| * disposed the widget in the modify event. If this happens, return to |
| * cancel the operation. |
| */ |
| if (isDisposed() || (!hooks (SWT.Segments) && !filters (SWT.Segments))) return; |
| Event event = new Event (); |
| String string = getText (); |
| event.text = string; |
| event.segments = segments; |
| sendEvent (SWT.Segments, event); |
| segments = event.segments; |
| if (segments == null) return; |
| int nSegments = segments.length; |
| if (nSegments == 0) return; |
| |
| for (int i = 1, length = string == null ? 0 : string.length (); i < nSegments; i++) { |
| if (event.segments [i] < event.segments [i - 1] || event.segments [i] > length) { |
| error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| } |
| char[] segmentsChars = event.segmentsChars; |
| char [] separator = { getOrientation () == SWT.RIGHT_TO_LEFT ? RTL_MARK : LTR_MARK }; |
| if ((style & SWT.SINGLE) != 0) { |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, INSERT_TEXT); |
| int limit = GTK.gtk_entry_get_max_length (handle); |
| if (limit != 0) GTK.gtk_entry_set_max_length (handle, translateOffset (limit)); |
| int [] pos = new int [1]; |
| for (int i = 0; i < nSegments; i++) { |
| pos [0] = segments [i] + i; |
| if (segmentsChars != null && segmentsChars.length > i) { |
| separator [0] = segmentsChars [i]; |
| } |
| byte [] buffer = Converter.wcsToMbcs (separator, false); |
| long ptr = GTK3.gtk_entry_get_text (handle); |
| pos [0] = (int)OS.g_utf16_offset_to_utf8_offset (ptr, pos [0]); |
| GTK.gtk_editable_insert_text (handle, buffer, buffer.length, pos); |
| } |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, INSERT_TEXT); |
| } else { |
| OS.g_signal_handlers_block_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_signal_handlers_block_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, TEXT_BUFFER_INSERT_TEXT); |
| byte [] pos = new byte [ITER_SIZEOF]; |
| byte [] startIter = new byte [ITER_SIZEOF]; |
| byte [] endIter = new byte [ITER_SIZEOF]; |
| for (int i = 0; i < nSegments; i++) { |
| GTK.gtk_text_buffer_get_bounds (bufferHandle, startIter, endIter); |
| long ptr = GTK.gtk_text_buffer_get_text (bufferHandle, startIter, endIter, true); |
| GTK.gtk_text_buffer_get_iter_at_offset (bufferHandle, pos, (int)OS.g_utf16_offset_to_utf8_offset (ptr, segments[i] + i)); |
| OS.g_free (ptr); |
| if (segmentsChars != null && segmentsChars.length > i) { |
| separator [0] = segmentsChars [i]; |
| } |
| byte [] buffer = Converter.wcsToMbcs (separator, false); |
| GTK.gtk_text_buffer_insert (bufferHandle, pos, buffer, buffer.length); |
| } |
| OS.g_signal_handlers_unblock_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_signal_handlers_unblock_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, TEXT_BUFFER_INSERT_TEXT); |
| } |
| } |
| |
| void clearSegments (boolean applyText) { |
| if (segments == null) return; |
| int nSegments = segments.length; |
| if (nSegments == 0) return; |
| |
| if ((style & SWT.SINGLE) != 0) { |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| if (applyText) { |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_TEXT); |
| long ptr = GTK3.gtk_entry_get_text (handle); |
| int start, end; |
| for (int i = 0; i < nSegments; i++) { |
| start = (int)OS.g_utf16_offset_to_utf8_offset (ptr, segments[i]); |
| end = (int)OS.g_utf16_offset_to_utf8_offset (ptr, segments[i] + 1); |
| GTK.gtk_editable_delete_text (handle, start, end); |
| } |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_TEXT); |
| } |
| int limit = GTK.gtk_entry_get_max_length (handle); |
| if (limit != 0) GTK.gtk_entry_set_max_length (handle, untranslateOffset (limit)); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| } else if (applyText) { |
| OS.g_signal_handlers_block_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_signal_handlers_block_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_RANGE); |
| byte [] start = new byte [ITER_SIZEOF], end = new byte [ITER_SIZEOF]; |
| byte [] startIter = new byte [ITER_SIZEOF], endIter = new byte [ITER_SIZEOF]; |
| for (int i = 0; i < nSegments; i++) { |
| GTK.gtk_text_buffer_get_bounds (bufferHandle, startIter, endIter); |
| long ptr = GTK.gtk_text_buffer_get_text (bufferHandle, startIter, endIter, true); |
| GTK.gtk_text_buffer_get_iter_at_offset (bufferHandle, start, (int)OS.g_utf16_offset_to_utf8_offset (ptr, segments[i])); |
| GTK.gtk_text_buffer_get_iter_at_offset (bufferHandle, end, (int)OS.g_utf16_offset_to_utf8_offset (ptr, segments[i] + 1)); |
| GTK.gtk_text_buffer_delete (bufferHandle, start, end); |
| OS.g_free (ptr); |
| } |
| OS.g_signal_handlers_unblock_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_RANGE); |
| OS.g_signal_handlers_unblock_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| } |
| segments = null; |
| } |
| |
| /** |
| * 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 (); |
| if ((style & SWT.SINGLE) != 0) { |
| int position = GTK.gtk_editable_get_position (handle); |
| GTK.gtk_editable_select_region (handle, position, position); |
| } else { |
| byte [] position = new byte [ITER_SIZEOF]; |
| long insertMark = GTK.gtk_text_buffer_get_insert (bufferHandle); |
| GTK.gtk_text_buffer_get_iter_at_mark (bufferHandle, position, insertMark); |
| GTK.gtk_text_buffer_select_range(bufferHandle, position, position); |
| } |
| } |
| |
| @Override |
| Point computeSizeInPixels (int wHint, int hHint, boolean changed) { |
| checkWidget (); |
| if (wHint != SWT.DEFAULT && wHint < 0) wHint = 0; |
| if (hHint != SWT.DEFAULT && hHint < 0) hHint = 0; |
| int[] w = new int [1], h = new int [1]; |
| if ((style & SWT.SINGLE) != 0) { |
| GTK.gtk_widget_realize (handle); |
| long layout = GTK3.gtk_entry_get_layout (handle); |
| OS.pango_layout_get_pixel_size (layout, w, h); |
| } else { |
| byte [] start = new byte [ITER_SIZEOF], end = new byte [ITER_SIZEOF]; |
| GTK.gtk_text_buffer_get_bounds (bufferHandle, start, end); |
| long text = GTK.gtk_text_buffer_get_text (bufferHandle, start, end, true); |
| long layout = GTK.gtk_widget_create_pango_layout (handle, text); |
| OS.g_free (text); |
| OS.pango_layout_set_width (layout, wHint * OS.PANGO_SCALE); |
| OS.pango_layout_get_pixel_size (layout, w, h); |
| OS.g_object_unref (layout); |
| } |
| int width = w [0]; |
| int height = h [0]; |
| if ((style & SWT.SINGLE) != 0 && message.length () > 0) { |
| byte [] buffer = Converter.wcsToMbcs (message, true); |
| long layout = GTK.gtk_widget_create_pango_layout (handle, buffer); |
| Arrays.fill (buffer, (byte) 0); |
| OS.pango_layout_get_pixel_size (layout, w, h); |
| OS.g_object_unref (layout); |
| width = Math.max (width, w [0]); |
| } |
| if ((style & SWT.SEARCH) != 0) { |
| // GtkSearchEntry have more padding than GtkEntry |
| GtkBorder tmp = new GtkBorder(); |
| long context = GTK.gtk_widget_get_style_context (handle); |
| int state_flag = GTK.gtk_widget_get_state_flags(handle); |
| gtk_style_context_get_padding(context, state_flag, tmp); |
| width += tmp.left + tmp.right; |
| } |
| if (width == 0) width = DEFAULT_WIDTH; |
| if (height == 0) height = DEFAULT_HEIGHT; |
| width = wHint == SWT.DEFAULT ? width : wHint; |
| height = hHint == SWT.DEFAULT ? height : hHint; |
| Rectangle trim = computeTrimInPixels (0, 0, width, height); |
| return new Point (trim.width, trim.height); |
| } |
| |
| @Override |
| Rectangle computeTrimInPixels (int x, int y, int width, int height) { |
| checkWidget (); |
| Rectangle trim = super.computeTrimInPixels (x, y, width, height); |
| int xborder = 0, yborder = 0; |
| if ((style & SWT.SINGLE) != 0) { |
| GtkBorder tmp = new GtkBorder(); |
| long context = GTK.gtk_widget_get_style_context (handle); |
| int state_flag = GTK.gtk_widget_get_state_flags(handle); |
| gtk_style_context_get_padding(context, state_flag, tmp); |
| trim.x -= tmp.left; |
| trim.y -= tmp.top; |
| trim.width += tmp.left + tmp.right; |
| if (tmp.bottom == 0 && tmp.top == 0) { |
| Point widthNative = computeNativeSize(handle, trim.width, SWT.DEFAULT, true); |
| trim.height = widthNative.y; |
| } else { |
| trim.height += tmp.top + tmp.bottom; |
| } |
| if ((style & SWT.BORDER) != 0) { |
| int state = GTK.gtk_widget_get_state_flags(handle); |
| gtk_style_context_get_border(context, state, tmp); |
| trim.x -= tmp.left; |
| trim.y -= tmp.top; |
| trim.width += tmp.left + tmp.right; |
| trim.height += tmp.top + tmp.bottom; |
| } |
| GdkRectangle icon_area = new GdkRectangle(); |
| GTK.gtk_entry_get_icon_area(handle, GTK.GTK_ENTRY_ICON_PRIMARY, icon_area); |
| trim.x -= icon_area.width; |
| trim.width += icon_area.width; |
| GTK.gtk_entry_get_icon_area(handle, GTK.GTK_ENTRY_ICON_SECONDARY, icon_area); |
| trim.width += icon_area.width; |
| } else { |
| int borderWidth = gtk_container_get_border_width_or_margin (handle); |
| xborder += borderWidth; |
| yborder += borderWidth; |
| } |
| /* |
| * Focus line width is done via CSS in GTK4, and does not contribute |
| * to the size of the widget. |
| */ |
| if (!GTK.GTK4) { |
| int [] property = new int [1]; |
| GTK3.gtk_widget_style_get (handle, OS.interior_focus, property, 0); |
| if (property [0] == 0) { |
| GTK3.gtk_widget_style_get (handle, OS.focus_line_width, property, 0); |
| xborder += property [0]; |
| yborder += property [0]; |
| } |
| } |
| trim.x -= xborder; |
| trim.y -= yborder; |
| trim.width += 2 * xborder; |
| trim.height += 2 * yborder; |
| trim.width += SPACE_FOR_CURSOR; |
| return new Rectangle (trim.x, trim.y, trim.width, trim.height); |
| } |
| |
| /** |
| * 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 (); |
| if ((style & SWT.SINGLE) != 0) { |
| if (GTK.GTK4) { |
| GTK4.gtk_widget_activate_action(textHandle, OS.action_copy_clipboard, null); |
| } else { |
| GTK3.gtk_editable_copy_clipboard(handle); |
| } |
| } else { |
| long clipboard = GTK.GTK4 ? GDK.gdk_display_get_clipboard(GDK.gdk_display_get_default()) : GTK3.gtk_clipboard_get (GDK.GDK_NONE); |
| clearSegments (true); |
| GTK.gtk_text_buffer_copy_clipboard (bufferHandle, clipboard); |
| applySegments (); |
| } |
| } |
| |
| /** |
| * Cuts the selected text. |
| * <p> |
| * The current selection is first copied to the |
| * clipboard and then deleted from the widget. |
| * </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 cut () { |
| checkWidget (); |
| if ((style & SWT.SINGLE) != 0) { |
| if (GTK.GTK4) { |
| GTK4.gtk_widget_activate_action(textHandle, OS.action_cut_clipboard, null); |
| } else { |
| GTK3.gtk_editable_cut_clipboard(handle); |
| } |
| } else { |
| long clipboard = GTK.GTK4 ? GDK.gdk_display_get_clipboard(GDK.gdk_display_get_default()) : GTK3.gtk_clipboard_get (GDK.GDK_NONE); |
| clearSegments (true); |
| GTK.gtk_text_buffer_cut_clipboard (bufferHandle, clipboard, GTK.gtk_text_view_get_editable (handle)); |
| applySegments (); |
| } |
| } |
| |
| char [] deprocessText (char [] text, int start, int end) { |
| if (text == null) return new char [0]; |
| if (start < 0) start = 0; |
| int length = text.length; |
| if (end == -1) end = start + length; |
| if (segments != null && end > segments [0]) { |
| int nSegments = segments.length; |
| if (nSegments > 0 && start <= segments [nSegments - 1]) { |
| int nLeadSegments = 0; |
| while (start - nLeadSegments > segments [nLeadSegments]) nLeadSegments++; |
| int segmentCount = nLeadSegments; |
| for (int i = start; i < end; i++) { |
| if (segmentCount < nSegments && i - segmentCount == segments [segmentCount]) { |
| ++segmentCount; |
| } else { |
| text [i - segmentCount + nLeadSegments - start] = text [i - start]; |
| } |
| } |
| length = end - start - segmentCount + nLeadSegments; |
| } |
| } |
| if (start != 0 || end != start + length) { |
| char [] newText = new char [length]; |
| System.arraycopy(text, 0, newText, 0, length); |
| return newText; |
| } |
| return text; |
| } |
| |
| @Override |
| GdkRGBA defaultBackground () { |
| return display.getSystemColor(SWT.COLOR_LIST_BACKGROUND).handle; |
| } |
| |
| @Override |
| void deregister () { |
| super.deregister (); |
| if (bufferHandle != 0) display.removeWidget (bufferHandle); |
| if (imContext != 0) display.removeWidget (imContext); |
| } |
| |
| @Override |
| boolean dragDetect (int x, int y, boolean filter, boolean dragOnTimeout, boolean [] consume) { |
| return false; |
| } |
| |
| @Override |
| long eventWindow () { |
| if ((style & SWT.SINGLE) != 0) { |
| /* |
| * Single-line Text (GtkEntry in GTK) uses a GDK_INPUT_ONLY |
| * internal window. This window can't be used for any kind |
| * of painting, but this is the window to which functions |
| * like Control.setCursor() should apply. |
| */ |
| long window = super.paintWindow (); |
| long children = GDK.gdk_window_get_children (window); |
| if (children != 0) { |
| long childrenIterator = children; |
| /* |
| * When search or cancel icons are added to Text, those |
| * icon window(s) are added to the beginning of the list. |
| * In order to always return the correct window for Text, |
| * browse to the end of the list. |
| */ |
| do { |
| window = OS.g_list_data (childrenIterator); |
| } while ((childrenIterator = OS.g_list_next (childrenIterator)) != 0); |
| } |
| OS.g_list_free (children); |
| return window; |
| } else { |
| return paintWindow (); |
| } |
| } |
| |
| @Override |
| boolean filterKey (int keyval, long event) { |
| int time = GDK.gdk_event_get_time (event); |
| if (time != lastEventTime) { |
| lastEventTime = time; |
| if (imContext != 0) { |
| if (GTK.GTK4) |
| return GTK4.gtk_im_context_filter_keypress (imContext, event); |
| else |
| return GTK3.gtk_im_context_filter_keypress (imContext, event); |
| } |
| } |
| gdkEventKey = event; |
| return false; |
| } |
| |
| void fixIM () { |
| /* |
| * The IM filter has to be called one time for each key press event. |
| * When the IM is open the key events are duplicated. The first event |
| * is filtered by SWT and the second event is filtered by GTK. In some |
| * cases the GTK handler does not run (the widget is destroyed, the |
| * application code consumes the event, etc), for these cases the IM |
| * filter has to be called by SWT. |
| */ |
| if (gdkEventKey != 0 && gdkEventKey != -1) { |
| if (imContext != 0) { |
| if (GTK.GTK4) |
| GTK4.gtk_im_context_filter_keypress (imContext, gdkEventKey); |
| else |
| GTK3.gtk_im_context_filter_keypress (imContext, gdkEventKey); |
| |
| gdkEventKey = -1; |
| return; |
| } |
| } |
| gdkEventKey = 0; |
| } |
| |
| @Override |
| int getBorderWidthInPixels () { |
| checkWidget(); |
| if ((style & SWT.MULTI) != 0) return super.getBorderWidthInPixels (); |
| if ((this.style & SWT.BORDER) != 0) { |
| return getThickness (handle).x; |
| } |
| return 0; |
| } |
| |
| /** |
| * Returns the line number of the caret. |
| * <p> |
| * The line number of the caret is returned. |
| * </p> |
| * |
| * @return the line number |
| * |
| * @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 (); |
| if ((style & SWT.SINGLE) != 0) return 0; |
| byte [] position = new byte [ITER_SIZEOF]; |
| long mark = GTK.gtk_text_buffer_get_insert (bufferHandle); |
| GTK.gtk_text_buffer_get_iter_at_mark (bufferHandle, position, mark); |
| return GTK.gtk_text_iter_get_line (position); |
| } |
| |
| /** |
| * Returns a point describing the location of the caret relative |
| * to the receiver. |
| * |
| * @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 (); |
| return DPIUtil.autoScaleDown(getCaretLocationInPixels()); |
| } |
| |
| Point getCaretLocationInPixels () { |
| checkWidget (); |
| if ((style & SWT.SINGLE) != 0) { |
| int index = GTK.gtk_editable_get_position (handle); |
| index = GTK3.gtk_entry_text_index_to_layout_index (handle, index); |
| int [] offset_x = new int [1], offset_y = new int [1]; |
| GTK3.gtk_entry_get_layout_offsets (handle, offset_x, offset_y); |
| long layout = GTK3.gtk_entry_get_layout (handle); |
| PangoRectangle pos = new PangoRectangle (); |
| OS.pango_layout_index_to_pos (layout, index, pos); |
| int x = offset_x [0] + OS.PANGO_PIXELS (pos.x) - getBorderWidthInPixels (); |
| int y = offset_y [0] + OS.PANGO_PIXELS (pos.y); |
| return new Point (x, y); |
| } else { |
| byte[] position = new byte[ITER_SIZEOF]; |
| long mark = GTK.gtk_text_buffer_get_insert(bufferHandle); |
| GTK.gtk_text_buffer_get_iter_at_mark(bufferHandle, position, mark); |
| GdkRectangle rect = new GdkRectangle(); |
| GTK.gtk_text_view_get_iter_location(handle, position, rect); |
| int[] x = new int[1]; |
| int[] y = new int[1]; |
| GTK.gtk_text_view_buffer_to_window_coords(handle, GTK.GTK_TEXT_WINDOW_TEXT, rect.x, rect.y, x, y); |
| return new Point (x[0], y[0]); |
| } |
| } |
| |
| /** |
| * Returns the character position of the caret. |
| * <p> |
| * Indexing is zero based. |
| * </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 (); |
| int result; |
| if ((style & SWT.SINGLE) != 0) { |
| long ptr = GTK3.gtk_entry_get_text (handle); |
| result = (int)OS.g_utf8_offset_to_utf16_offset (ptr, GTK.gtk_editable_get_position (handle)); |
| } else { |
| byte [] position = new byte [ITER_SIZEOF]; |
| long mark = GTK.gtk_text_buffer_get_insert (bufferHandle); |
| GTK.gtk_text_buffer_get_iter_at_mark (bufferHandle, position, mark); |
| byte [] zero = new byte [ITER_SIZEOF]; |
| GTK.gtk_text_buffer_get_iter_at_offset(bufferHandle, zero, 0); |
| long ptr = GTK.gtk_text_buffer_get_text (bufferHandle, zero, position, true); |
| result = (int)OS.g_utf8_offset_to_utf16_offset (ptr, GTK.gtk_text_iter_get_offset (position)); |
| OS.g_free (ptr); |
| } |
| return untranslateOffset (result); |
| } |
| |
| /** |
| * Returns 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 (); |
| int result; |
| if ((style & SWT.SINGLE) != 0) { |
| long ptr = GTK3.gtk_entry_get_text (handle); |
| result = (int)OS.g_utf16_strlen (ptr, -1); |
| } else { |
| byte [] startIter = new byte [ITER_SIZEOF]; |
| byte [] endIter = new byte [ITER_SIZEOF]; |
| GTK.gtk_text_buffer_get_bounds (bufferHandle, startIter, endIter); |
| long ptr = GTK.gtk_text_buffer_get_text (bufferHandle, startIter, endIter, true); |
| result = (int)OS.g_utf16_strlen(ptr, -1); |
| OS.g_free (ptr); |
| } |
| return untranslateOffset (result); |
| } |
| |
| /** |
| * Returns 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> |
| * |
| * @return whether or not double click is enabled |
| * |
| * @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 doubleClick; |
| } |
| |
| /** |
| * Returns 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> |
| * |
| * @return the 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> |
| * |
| * @see #setEchoChar |
| */ |
| public char getEchoChar () { |
| checkWidget (); |
| if ((style & SWT.SINGLE) != 0) { |
| if (!GTK.gtk_entry_get_visibility (handle)) { |
| return GTK.gtk_entry_get_invisible_char (handle); |
| } |
| } |
| return '\0'; |
| } |
| |
| /** |
| * Returns the editable state. |
| * |
| * @return whether or not the receiver is editable |
| * |
| * @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 (); |
| if ((style & SWT.SINGLE) != 0) { |
| return GTK.gtk_editable_get_editable (handle); |
| } |
| return GTK.gtk_text_view_get_editable (handle); |
| } |
| |
| /** |
| * Returns 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 (); |
| if ((style & SWT.SINGLE) != 0) return 1; |
| return GTK.gtk_text_buffer_get_line_count (bufferHandle); |
| } |
| |
| /** |
| * Returns 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> |
| * |
| * @see #DELIMITER |
| */ |
| public String getLineDelimiter () { |
| checkWidget (); |
| return "\n"; |
| } |
| |
| /** |
| * Returns 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 (); |
| long fontDesc = getFontDescription (); |
| int result = fontHeight (fontDesc, handle); |
| OS.pango_font_description_free (fontDesc); |
| return result; |
| } |
| |
| /** |
| * Returns the widget message. The message text is displayed |
| * as a hint for the user, indicating the purpose of the field. |
| * <p> |
| * Typically this is used in conjunction with <code>SWT.SEARCH</code>. |
| * </p> |
| * |
| * @return the widget message |
| * |
| * @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> |
| * |
| * @since 3.3 |
| */ |
| public String getMessage () { |
| checkWidget (); |
| return message; |
| } |
| |
| /** |
| * Returns the orientation of the receiver, which will be one of the |
| * constants <code>SWT.LEFT_TO_RIGHT</code> or <code>SWT.RIGHT_TO_LEFT</code>. |
| * |
| * @return the orientation style |
| * |
| * @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> |
| * |
| * @since 2.1.2 |
| */ |
| @Override |
| public int getOrientation () { |
| return super.getOrientation (); |
| } |
| |
| /*public*/ int getPosition (Point point) { |
| checkWidget (); |
| if (point == null) error (SWT.ERROR_NULL_ARGUMENT); |
| int position = -1; |
| if ((style & SWT.SINGLE) != 0) { |
| int [] index = new int [1]; |
| int [] trailing = new int [1]; |
| long layout = GTK3.gtk_entry_get_layout (handle); |
| OS.pango_layout_xy_to_index (layout, point.x * OS.PANGO_SCALE, point.y * OS.PANGO_SCALE, index, trailing); |
| long ptr = OS.pango_layout_get_text (layout); |
| position = (int)OS.g_utf16_pointer_to_offset (ptr, ptr + index[0]) + trailing[0]; |
| } else { |
| byte [] p = new byte [ITER_SIZEOF]; |
| GTK.gtk_text_view_get_iter_at_location (handle, p, point.x, point.y); |
| byte [] zero = new byte [ITER_SIZEOF]; |
| GTK.gtk_text_buffer_get_iter_at_offset(bufferHandle, zero, 0); |
| long ptr = GTK.gtk_text_buffer_get_text (bufferHandle, zero, p, true); |
| position = (int)OS.g_utf8_offset_to_utf16_offset (ptr, GTK.gtk_text_iter_get_offset (p)); |
| OS.g_free (ptr); |
| } |
| return untranslateOffset (position); |
| } |
| |
| /** |
| * Returns a <code>Point</code> whose x coordinate is the |
| * character position representing the start of the selected |
| * text, and whose y coordinate is the character position |
| * representing the end of the selection. An "empty" selection |
| * is indicated by the x and y coordinates having the same value. |
| * <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 a point representing the selection start and end |
| * |
| * @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 (); |
| Point selection; |
| if ((style & SWT.SINGLE) != 0) { |
| int [] start = new int [1]; |
| int [] end = new int [1]; |
| GTK.gtk_editable_get_selection_bounds (handle, start, end); |
| long ptr = GTK3.gtk_entry_get_text (handle); |
| start[0] = (int)OS.g_utf8_offset_to_utf16_offset (ptr, start[0]); |
| end[0] = (int)OS.g_utf8_offset_to_utf16_offset (ptr, end[0]); |
| selection = new Point (start [0], end [0]); |
| } else { |
| byte [] startIter = new byte [ITER_SIZEOF]; |
| byte [] endIter = new byte [ITER_SIZEOF]; |
| GTK.gtk_text_buffer_get_selection_bounds (bufferHandle, startIter, endIter); |
| byte [] zero = new byte [ITER_SIZEOF]; |
| GTK.gtk_text_buffer_get_iter_at_offset(bufferHandle, zero, 0); |
| long ptr = GTK.gtk_text_buffer_get_text (bufferHandle, zero, endIter, true); |
| int start = (int)OS.g_utf8_offset_to_utf16_offset (ptr, GTK.gtk_text_iter_get_offset (startIter)); |
| int end = (int)OS.g_utf8_offset_to_utf16_offset (ptr, GTK.gtk_text_iter_get_offset (endIter)); |
| OS.g_free (ptr); |
| selection = new Point (start, end); |
| } |
| selection.x = untranslateOffset (selection.x); |
| selection.y = untranslateOffset (selection.y); |
| return selection; |
| } |
| |
| /** |
| * Returns 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 (); |
| Point selection = getSelection (); |
| return Math.abs (selection.y - selection.x); |
| } |
| |
| /** |
| * Gets the selected text, or an empty string if there is no current selection. |
| * |
| * @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 (); |
| Point selection = getSelection (); |
| return getText ().substring(selection.x, selection.y); |
| } |
| |
| /** |
| * Returns 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 (); |
| return tabs; |
| } |
| |
| int getTabWidth (int tabs) { |
| byte[] buffer = Converter.wcsToMbcs(" ", true); |
| long layout = GTK.gtk_widget_create_pango_layout (handle, buffer); |
| int [] width = new int [1]; |
| int [] height = new int [1]; |
| OS.pango_layout_get_size (layout, width, height); |
| OS.g_object_unref (layout); |
| return width [0] * tabs; |
| } |
| |
| /** |
| * Returns the widget text. |
| * <p> |
| * The text for a text widget is the characters in the widget, or |
| * an empty string if this has never been set. |
| * </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 () { |
| return new String (getTextChars()); |
| } |
| |
| /** |
| * Returns a range of text. Returns an empty string if the |
| * start of the range is greater than the end. |
| * <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 (); |
| if (!(start <= end && 0 <= end)) return ""; |
| String str = getText (); |
| int length = str.length (); |
| end = Math.min (end, length - 1); |
| if (start > end) return ""; |
| start = Math.max (0, start); |
| /* |
| * NOTE: The current implementation uses substring () |
| * which can reference a potentially large character |
| * array. |
| */ |
| return str.substring (start, end + 1); |
| } |
| |
| /** |
| * Returns the widget's text as a character array. |
| * <p> |
| * The text for a text widget is the characters in the widget, or |
| * a zero-length array if this has never been set. |
| * </p> |
| * <p> |
| * Note: Use this API to prevent the text from being written into a String |
| * object whose lifecycle is outside of your control. This can help protect |
| * the text, for example, when the widget is used as a password field. |
| * However, the text can't be protected if an {@link SWT#Segments} or |
| * {@link SWT#Verify} listener has been added to the widget. |
| * </p> |
| * |
| * @return a character array that contains the widget's 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> |
| * |
| * @see #setTextChars(char[]) |
| * |
| * @since 3.7 |
| */ |
| public char [] getTextChars () { |
| checkWidget (); |
| long address; |
| |
| if ((style & SWT.SINGLE) != 0) { |
| if (GTK.GTK4) { |
| address = GTK.gtk_entry_buffer_get_text(bufferHandle); |
| } else { |
| address = GTK3.gtk_entry_get_text(handle); |
| } |
| } else { |
| byte [] start = new byte [ITER_SIZEOF]; |
| byte [] end = new byte [ITER_SIZEOF]; |
| GTK.gtk_text_buffer_get_bounds (bufferHandle, start, end); |
| address = GTK.gtk_text_buffer_get_text (bufferHandle, start, end, true); |
| } |
| if (address == 0) return new char[0]; |
| int length = C.strlen (address); |
| byte [] buffer = new byte [length]; |
| C.memmove (buffer, address, length); |
| if ((style & SWT.MULTI) != 0) OS.g_free (address); |
| |
| char [] result = Converter.mbcsToWcs (buffer); |
| Arrays.fill (buffer, (byte) 0); |
| if (segments != null) { |
| result = deprocessText (result, 0, -1); |
| } |
| return result; |
| } |
| |
| /** |
| * 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> |
| * |
| * @see #LIMIT |
| */ |
| public int getTextLimit () { |
| checkWidget (); |
| if ((style & SWT.MULTI) != 0) return LIMIT; |
| int limit = GTK.gtk_entry_get_max_length (handle); |
| return limit == 0 ? 0xFFFF : untranslateOffset (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; |
| byte [] position = new byte [ITER_SIZEOF]; |
| /* |
| * Feature in GTK: GtkTextView widgets are subject to line validation |
| * which happens during idle. This causes GtkTextIter to not update quickly |
| * enough when changes are added to the text buffer. The fix is to use a |
| * GtkTextMark to track the precise index, then convert it back to a |
| * GtkTextIter when getTopIndex() is called. See bug 487467. |
| * |
| * NOTE: to cover cases where getTopIndex() is called without setTopIndex() |
| * being called, we fetch the current GtkAdjustment value and cache it for |
| * comparison. In getTopIndex() we compare the current value with the cached |
| * one to see if the user has scrolled/moved the viewport using the GUI. |
| * If so, we use the old method of fetching the top index. |
| */ |
| long vAdjustment = GTK.gtk_scrollable_get_vadjustment (handle); |
| currentAdjustment = GTK.gtk_adjustment_get_value (vAdjustment); |
| if (cachedAdjustment == currentAdjustment) { |
| // If indexMark is 0, fetch topIndex using the old method |
| if (indexMark != 0) { |
| GTK.gtk_text_buffer_get_iter_at_mark (bufferHandle, position, indexMark); |
| return GTK.gtk_text_iter_get_line (position); |
| } |
| } |
| GdkRectangle rect = new GdkRectangle (); |
| GTK.gtk_text_view_get_visible_rect (handle, rect); |
| GTK.gtk_text_view_get_line_at_y (handle, position, rect.y, null); |
| return GTK.gtk_text_iter_get_line (position); |
| } |
| |
| /** |
| * Returns the top SWT logical point. |
| * <p> |
| * The top point is the SWT logical point position of the line |
| * that is currently at the top of the widget. On |
| * some platforms, a text widget can be scrolled by |
| * points instead of lines so that a partial line |
| * is displayed at the top of the widget. |
| * </p><p> |
| * The top SWT logical point changes when the widget is scrolled. |
| * The top SWT logical point does not include the widget trimming. |
| * </p> |
| * |
| * @return the SWT logical point 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 (); |
| return DPIUtil.autoScaleDown(getTopPixelInPixels()); |
| } |
| |
| int getTopPixelInPixels () { |
| checkWidget (); |
| if ((style & SWT.SINGLE) != 0) return 0; |
| byte [] position = new byte [ITER_SIZEOF]; |
| GdkRectangle rect = new GdkRectangle (); |
| GTK.gtk_text_view_get_visible_rect (handle, rect); |
| int [] lineTop = new int[1]; |
| GTK.gtk_text_view_get_line_at_y (handle, position, rect.y, lineTop); |
| return lineTop [0]; |
| } |
| |
| @Override |
| long gtk_activate (long widget) { |
| sendSelectionEvent (SWT.DefaultSelection); |
| return 0; |
| } |
| |
| @Override |
| long gtk_button_press_event (long widget, long event) { |
| long result; |
| result = super.gtk_button_press_event (widget, event); |
| if (result != 0) return result; |
| int eventType = GDK.gdk_event_get_event_type(event); |
| if (!doubleClick) { |
| switch (eventType) { |
| case GDK.GDK_2BUTTON_PRESS: |
| case GDK.GDK_3BUTTON_PRESS: |
| return 1; |
| } |
| } |
| return result; |
| } |
| |
| @Override |
| long gtk_changed (long widget) { |
| /* |
| * Feature in GTK. When the user types, GTK positions |
| * the caret after sending the changed signal. This |
| * means that application code that attempts to position |
| * the caret during a changed signal will fail. The fix |
| * is to post the modify event when the user is typing. |
| */ |
| boolean keyPress = false; |
| long eventPtr = GTK.GTK4 ? 0 : GTK3.gtk_get_current_event (); |
| if (eventPtr != 0) { |
| int eventType = GDK.gdk_event_get_event_type(eventPtr); |
| eventType = fixGdkEventTypeValues(eventType); |
| switch (eventType) { |
| case GDK.GDK_KEY_PRESS: |
| keyPress = true; |
| break; |
| } |
| gdk_event_free (eventPtr); |
| } |
| if (keyPress) { |
| postEvent (SWT.Modify); |
| } else { |
| sendEvent (SWT.Modify); |
| } |
| if ((style & SWT.SEARCH) != 0) { |
| if ((style & SWT.ICON_CANCEL) == 0) { |
| // Default GtkSearchEntry shows "clear" icon when there is text, manually revert this |
| // when "cancel" icon style is not set |
| GTK.gtk_entry_set_icon_from_icon_name(handle, GTK.GTK_ENTRY_ICON_SECONDARY, null); |
| } |
| } |
| return 0; |
| } |
| |
| @Override |
| long gtk_commit (long imContext, long text) { |
| if (text == 0) return 0; |
| if ((style & SWT.SINGLE) != 0) { |
| if (!GTK.gtk_editable_get_editable (handle)) return 0; |
| } |
| int length = C.strlen (text); |
| if (length == 0) return 0; |
| byte [] buffer = new byte [length]; |
| C.memmove (buffer, text, length); |
| char [] chars = Converter.mbcsToWcs (buffer); |
| Arrays.fill (buffer, (byte) 0); |
| char [] newChars = sendIMKeyEvent (SWT.KeyDown, 0, chars); |
| if (newChars == null) return 0; |
| /* |
| * Feature in GTK. For a GtkEntry, during the insert-text signal, |
| * GTK allows the programmer to change only the caret location, |
| * not the selection. If the programmer changes the selection, |
| * the new selection is lost. The fix is to detect a selection |
| * change and set it after the insert-text signal has completed. |
| */ |
| fixStart = fixEnd = -1; |
| OS.g_signal_handlers_block_matched (imContext, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, COMMIT); |
| int id = OS.g_signal_lookup (OS.commit, GTK.gtk_im_context_get_type ()); |
| int mask = OS.G_SIGNAL_MATCH_DATA | OS.G_SIGNAL_MATCH_ID; |
| OS.g_signal_handlers_unblock_matched (imContext, mask, id, 0, 0, 0, handle); |
| if (newChars == chars) { |
| OS.g_signal_emit_by_name (imContext, OS.commit, text); |
| } else { |
| buffer = Converter.wcsToMbcs (newChars, true); |
| OS.g_signal_emit_by_name (imContext, OS.commit, buffer); |
| Arrays.fill (buffer, (byte) 0); |
| } |
| OS.g_signal_handlers_unblock_matched (imContext, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, COMMIT); |
| OS.g_signal_handlers_block_matched (imContext, mask, id, 0, 0, 0, handle); |
| if ((style & SWT.SINGLE) != 0) { |
| if (fixStart != -1 && fixEnd != -1) { |
| GTK.gtk_editable_set_position (handle, fixStart); |
| GTK.gtk_editable_select_region (handle, fixStart, fixEnd); |
| } |
| } |
| fixStart = fixEnd = -1; |
| return 0; |
| } |
| |
| @Override |
| long gtk_delete_range (long widget, long iter1, long iter2) { |
| if (!hooks (SWT.Verify) && !filters (SWT.Verify)) return 0; |
| byte [] startIter = new byte [ITER_SIZEOF]; |
| byte [] endIter = new byte [ITER_SIZEOF]; |
| C.memmove (startIter, iter1, startIter.length); |
| C.memmove (endIter, iter2, endIter.length); |
| int start = GTK.gtk_text_iter_get_offset (startIter); |
| int end = GTK.gtk_text_iter_get_offset (endIter); |
| byte [] zero = new byte [ITER_SIZEOF]; |
| GTK.gtk_text_buffer_get_iter_at_offset(bufferHandle, zero, 0); |
| long ptr = GTK.gtk_text_buffer_get_text (bufferHandle, zero, endIter, true); |
| start = (int)OS.g_utf8_offset_to_utf16_offset (ptr, start); |
| end = (int)OS.g_utf8_offset_to_utf16_offset (ptr, end); |
| OS.g_free (ptr); |
| String newText = verifyText ("", start, end); |
| if (newText == null) { |
| /* Remember the selection when the text was deleted */ |
| GTK.gtk_text_buffer_get_selection_bounds (bufferHandle, startIter, endIter); |
| start = GTK.gtk_text_iter_get_offset (startIter); |
| end = GTK.gtk_text_iter_get_offset (endIter); |
| if (start != end) { |
| fixStart = start; |
| fixEnd = end; |
| } |
| OS.g_signal_stop_emission_by_name (bufferHandle, OS.delete_range); |
| } else { |
| if (newText.length () > 0) { |
| byte [] buffer = Converter.wcsToMbcs (newText, false); |
| OS.g_signal_handlers_block_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_signal_handlers_block_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_RANGE); |
| GTK.gtk_text_buffer_delete (bufferHandle, startIter, endIter); |
| OS.g_signal_handlers_unblock_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_RANGE); |
| OS.g_signal_handlers_unblock_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_signal_handlers_block_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, TEXT_BUFFER_INSERT_TEXT); |
| GTK.gtk_text_buffer_insert (bufferHandle, startIter, buffer, buffer.length); |
| OS.g_signal_handlers_unblock_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, TEXT_BUFFER_INSERT_TEXT); |
| OS.g_signal_stop_emission_by_name (bufferHandle, OS.delete_range); |
| Arrays.fill (buffer, (byte) 0); |
| } |
| } |
| return 0; |
| } |
| |
| @Override |
| long gtk_delete_text (long widget, long start_pos, long end_pos) { |
| if (!hooks (SWT.Verify) && !filters (SWT.Verify)) return 0; |
| long ptr = GTK3.gtk_entry_get_text (handle); |
| if (end_pos == -1) end_pos = OS.g_utf8_strlen (ptr, -1); |
| int start = (int)OS.g_utf8_offset_to_utf16_offset (ptr, start_pos); |
| int end = (int)OS.g_utf8_offset_to_utf16_offset (ptr, end_pos); |
| String newText = verifyText ("", start, end); |
| if (newText == null) { |
| /* Remember the selection when the text was deleted */ |
| int [] newStart = new int [1], newEnd = new int [1]; |
| GTK.gtk_editable_get_selection_bounds (handle, newStart, newEnd); |
| if (newStart [0] != newEnd [0]) { |
| fixStart = newStart [0]; |
| fixEnd = newEnd [0]; |
| } |
| OS.g_signal_stop_emission_by_name (handle, OS.delete_text); |
| } else { |
| if (newText.length () > 0) { |
| int [] pos = new int [1]; |
| pos [0] = (int)end_pos; |
| byte [] buffer = Converter.wcsToMbcs (newText, false); |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, INSERT_TEXT); |
| GTK.gtk_editable_insert_text (handle, buffer, buffer.length, pos); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, INSERT_TEXT); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| GTK.gtk_editable_set_position (handle, pos [0]); |
| Arrays.fill (buffer, (byte) 0); |
| } |
| } |
| return 0; |
| } |
| |
| @Override |
| long gtk_event_after (long widget, long gdkEvent) { |
| if (cursor != null) setCursor (cursor.handle); |
| /* |
| * Feature in GTK. The gtk-entry-select-on-focus property is a global |
| * setting. Return it to its default value after the GtkEntry has done |
| * its focus in processing so that other widgets (such as the combo) |
| * use the correct value. |
| */ |
| if ((style & SWT.SINGLE) != 0 && display.entrySelectOnFocus) { |
| int eventType = GDK.gdk_event_get_event_type(gdkEvent); |
| eventType = fixGdkEventTypeValues(eventType); |
| switch (eventType) { |
| case GDK.GDK_FOCUS_CHANGE: |
| boolean [] focusIn = new boolean [1]; |
| if (GTK.GTK4) { |
| focusIn[0] = GDK.gdk_focus_event_get_in(gdkEvent); |
| } else { |
| GdkEventFocus gdkEventFocus = new GdkEventFocus (); |
| OS.memmove (gdkEventFocus, gdkEvent, GdkEventFocus.sizeof); |
| focusIn[0] = gdkEventFocus.in != 0; |
| } |
| if (focusIn[0]) { |
| long settings = GTK.gtk_settings_get_default (); |
| OS.g_object_set (settings, GTK.gtk_entry_select_on_focus, true, 0); |
| } |
| break; |
| } |
| } |
| return super.gtk_event_after (widget, gdkEvent); |
| } |
| |
| @Override |
| long gtk_draw (long widget, long cairo) { |
| if ((state & OBSCURED) != 0) return 0; |
| long result = super.gtk_draw (widget, cairo); |
| return result; |
| } |
| |
| @Override |
| boolean mustBeVisibleOnInitBounds() { |
| // Bug 542940: Workaround to avoid NPE, make Text visible on initialization |
| return true; |
| } |
| |
| @Override |
| long gtk_focus_out_event (long widget, long event) { |
| fixIM (); |
| return super.gtk_focus_out_event (widget, event); |
| } |
| |
| @Override |
| long gtk_grab_focus (long widget) { |
| long result = super.gtk_grab_focus (widget); |
| /* |
| * Feature in GTK. GtkEntry widgets select their text on focus in, |
| * clearing the previous selection. This behavior is controlled by |
| * the gtk-entry-select-on-focus property. The fix is to disable |
| * this property when a GtkEntry is given focus and restore it after |
| * the entry has done focus in processing. |
| */ |
| if ((style & SWT.SINGLE) != 0 && display.entrySelectOnFocus) { |
| long settings = GTK.gtk_settings_get_default (); |
| OS.g_object_set (settings, GTK.gtk_entry_select_on_focus, false, 0); |
| } |
| return result; |
| } |
| |
| @Override |
| long gtk_icon_release (long widget, long icon_pos, long event) { |
| Event e = new Event(); |
| if (icon_pos == GTK.GTK_ENTRY_ICON_PRIMARY) { |
| e.detail = SWT.ICON_SEARCH; |
| } else { |
| e.detail = SWT.ICON_CANCEL; |
| } |
| sendSelectionEvent (SWT.DefaultSelection, e, false); |
| return 0; |
| } |
| |
| @Override |
| long gtk_insert_text (long widget, long new_text, long new_text_length, long position) { |
| if (!hooks (SWT.Verify) && !filters (SWT.Verify)) return 0; |
| if (new_text == 0 || new_text_length == 0) return 0; |
| byte [] buffer = new byte [(int)new_text_length]; |
| C.memmove (buffer, new_text, buffer.length); |
| String oldText = new String (Converter.mbcsToWcs (buffer)); |
| int [] pos = new int [1]; |
| C.memmove (pos, position, 4); |
| long ptr = GTK3.gtk_entry_get_text (handle); |
| if (pos [0] == -1) pos [0] = (int)OS.g_utf8_strlen (ptr, -1); |
| /* Use the selection when the text was deleted */ |
| int start = pos [0], end = pos [0]; |
| if (fixStart != -1 && fixEnd != -1) { |
| start = pos [0] = fixStart; |
| end = fixEnd; |
| fixStart = fixEnd = -1; |
| } |
| start = (int)OS.g_utf8_offset_to_utf16_offset (ptr, start); |
| end = (int)OS.g_utf8_offset_to_utf16_offset (ptr, end); |
| String newText = verifyText (oldText, start, end); |
| if (newText != oldText && handle != 0) { |
| int [] newStart = new int [1], newEnd = new int [1]; |
| GTK.gtk_editable_get_selection_bounds (handle, newStart, newEnd); |
| if (newText != null) { |
| if (newStart [0] != newEnd [0]) { |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_TEXT); |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| GTK.gtk_editable_delete_selection (handle); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_TEXT); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| } |
| byte [] buffer3 = Converter.wcsToMbcs (newText, false); |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, INSERT_TEXT); |
| GTK.gtk_editable_insert_text (handle, buffer3, buffer3.length, pos); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, INSERT_TEXT); |
| newStart [0] = newEnd [0] = pos [0]; |
| } |
| pos [0] = newEnd [0]; |
| if (newStart [0] != newEnd [0]) { |
| fixStart = newStart [0]; |
| fixEnd = newEnd [0]; |
| } |
| C.memmove (position, pos, 4); |
| OS.g_signal_stop_emission_by_name (handle, OS.insert_text); |
| } |
| return 0; |
| } |
| |
| @Override |
| long gtk_key_press_event (long widget, long event) { |
| boolean handleSegments = false, segmentsCleared = false; |
| if (hooks (SWT.Segments) || filters (SWT.Segments)) { |
| int length = 0; |
| int [] state = new int[1]; |
| |
| if (GTK.GTK4) { |
| /* TODO: GTK4 no access to key event string */ |
| state[0] = GDK.gdk_event_get_modifier_state(event); |
| } else { |
| GDK.gdk_event_get_state(event, state); |
| |
| GdkEventKey gdkEvent = new GdkEventKey (); |
| OS.memmove(gdkEvent, event, GdkEventKey.sizeof); |
| length = gdkEvent.length; |
| } |
| |
| if (length > 0 && (state[0] & (GDK.GDK_MOD1_MASK | GDK.GDK_CONTROL_MASK)) == 0) { |
| handleSegments = true; |
| if (segments != null) { |
| clearSegments (true); |
| segmentsCleared = true; |
| } |
| } |
| } |
| long result = super.gtk_key_press_event (widget, event); |
| if (result != 0) fixIM (); |
| if (gdkEventKey == -1) result = 1; |
| gdkEventKey = 0; |
| if (handleSegments && (result != 0 || segmentsCleared)) { |
| applySegments (); |
| } |
| return result; |
| } |
| |
| @Override |
| long gtk_populate_popup (long widget, long menu) { |
| if ((style & SWT.RIGHT_TO_LEFT) != 0) { |
| GTK.gtk_widget_set_direction (menu, GTK.GTK_TEXT_DIR_RTL); |
| GTK3.gtk_container_forall (menu, display.setDirectionProc, GTK.GTK_TEXT_DIR_RTL); |
| } |
| return 0; |
| } |
| |
| @Override |
| long gtk_text_buffer_insert_text (long widget, long iter, long text, long length) { |
| if (!hooks (SWT.Verify) && !filters (SWT.Verify)) return 0; |
| byte [] position = new byte [ITER_SIZEOF]; |
| C.memmove (position, iter, position.length); |
| /* Use the selection when the text was deleted */ |
| int start = GTK.gtk_text_iter_get_offset (position), end = start; |
| if (fixStart != -1 && fixEnd != -1) { |
| start = fixStart; |
| end = fixEnd; |
| fixStart = fixEnd = -1; |
| } |
| byte [] zero = new byte [ITER_SIZEOF]; |
| GTK.gtk_text_buffer_get_iter_at_offset(bufferHandle, zero, 0); |
| long ptr = GTK.gtk_text_buffer_get_text (bufferHandle, zero, position, true); |
| start = (int)OS.g_utf8_offset_to_utf16_offset (ptr, start); |
| end = (int)OS.g_utf8_offset_to_utf16_offset (ptr, end); |
| OS.g_free(ptr); |
| byte [] buffer = new byte [(int)length]; |
| C.memmove (buffer, text, buffer.length); |
| String oldText = new String (Converter.mbcsToWcs (buffer)); |
| String newText = verifyText (oldText, start, end); |
| if (newText == null) { |
| OS.g_signal_stop_emission_by_name (bufferHandle, OS.insert_text); |
| } else { |
| if (newText != oldText) { |
| byte [] buffer1 = Converter.wcsToMbcs (newText, false); |
| OS.g_signal_handlers_block_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, TEXT_BUFFER_INSERT_TEXT); |
| GTK.gtk_text_buffer_insert (bufferHandle, iter, buffer1, buffer1.length); |
| OS.g_signal_handlers_unblock_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, TEXT_BUFFER_INSERT_TEXT); |
| OS.g_signal_stop_emission_by_name (bufferHandle, OS.insert_text); |
| } |
| } |
| return 0; |
| } |
| |
| @Override |
| void hookEvents() { |
| super.hookEvents(); |
| if ((style & SWT.SINGLE) != 0) { |
| OS.g_signal_connect_closure(handle, OS.changed, display.getClosure (CHANGED), true); |
| OS.g_signal_connect_closure(handle, OS.insert_text, display.getClosure (INSERT_TEXT), false); |
| OS.g_signal_connect_closure(handle, OS.delete_text, display.getClosure (DELETE_TEXT), false); |
| OS.g_signal_connect_closure(handle, OS.activate, display.getClosure (ACTIVATE), false); |
| |
| if (!GTK.GTK4) { |
| OS.g_signal_connect_closure(handle, OS.grab_focus, display.getClosure (GRAB_FOCUS), false); |
| } |
| if ((style & SWT.SEARCH) != 0) { |
| OS.g_signal_connect_closure(handle, OS.icon_release, display.getClosure (ICON_RELEASE), false); |
| } |
| } else { |
| OS.g_signal_connect_closure(bufferHandle, OS.changed, display.getClosure (CHANGED), false); |
| OS.g_signal_connect_closure(bufferHandle, OS.insert_text, display.getClosure (TEXT_BUFFER_INSERT_TEXT), false); |
| OS.g_signal_connect_closure(bufferHandle, OS.delete_range, display.getClosure (DELETE_RANGE), false); |
| } |
| |
| if (imContext != 0) { |
| OS.g_signal_connect_closure(imContext, OS.commit, display.getClosure (COMMIT), false); |
| int id = OS.g_signal_lookup(OS.commit, GTK.gtk_im_context_get_type ()); |
| int mask = OS.G_SIGNAL_MATCH_DATA | OS.G_SIGNAL_MATCH_ID; |
| OS.g_signal_handlers_block_matched(imContext, mask, id, 0, 0, 0, handle); |
| } |
| |
| if (!GTK.GTK4) { |
| OS.g_signal_connect_closure(handle, OS.populate_popup, display.getClosure (POPULATE_POPUP), false); |
| } |
| |
| // In GTK4, these event signals belong to GtkText which is the only child of GtkEntry |
| long eventHandle = 0; |
| |
| if (GTK.GTK4) { |
| eventHandle = ((style & SWT.SINGLE) != 0) ? textHandle : handle; |
| } else { |
| eventHandle = handle; |
| } |
| |
| OS.g_signal_connect_closure(eventHandle, OS.backspace, display.getClosure (BACKSPACE), false); |
| OS.g_signal_connect_closure(eventHandle, OS.backspace, display.getClosure (BACKSPACE_INVERSE), true); |
| OS.g_signal_connect_closure(eventHandle, OS.copy_clipboard, display.getClosure (COPY_CLIPBOARD), false); |
| OS.g_signal_connect_closure(eventHandle, OS.copy_clipboard, display.getClosure (COPY_CLIPBOARD_INVERSE), true); |
| OS.g_signal_connect_closure(eventHandle, OS.cut_clipboard, display.getClosure (CUT_CLIPBOARD), false); |
| OS.g_signal_connect_closure(eventHandle, OS.cut_clipboard, display.getClosure (CUT_CLIPBOARD_INVERSE), true); |
| OS.g_signal_connect_closure(eventHandle, OS.paste_clipboard, display.getClosure (PASTE_CLIPBOARD), false); |
| OS.g_signal_connect_closure(eventHandle, OS.paste_clipboard, display.getClosure (PASTE_CLIPBOARD_INVERSE), true); |
| OS.g_signal_connect_closure(eventHandle, OS.delete_from_cursor, display.getClosure (DELETE_FROM_CURSOR), false); |
| OS.g_signal_connect_closure(eventHandle, OS.delete_from_cursor, display.getClosure (DELETE_FROM_CURSOR_INVERSE), true); |
| OS.g_signal_connect_closure(eventHandle, OS.move_cursor, display.getClosure (MOVE_CURSOR), false); |
| OS.g_signal_connect_closure(eventHandle, OS.move_cursor, display.getClosure (MOVE_CURSOR_INVERSE), true); |
| OS.g_signal_connect_closure(eventHandle, OS.direction_changed, display.getClosure (DIRECTION_CHANGED), true); |
| } |
| |
| /** |
| * Inserts a string. |
| * <p> |
| * The old selection is replaced with the new text. |
| * </p> |
| * |
| * @param string the string |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the string is <code>null</code></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 insert (String string) { |
| checkWidget (); |
| if (string == null) error (SWT.ERROR_NULL_ARGUMENT); |
| clearSegments (true); |
| byte [] buffer = Converter.wcsToMbcs (string, false); |
| if ((style & SWT.SINGLE) != 0) { |
| int [] start = new int [1], end = new int [1]; |
| GTK.gtk_editable_get_selection_bounds (handle, start, end); |
| GTK.gtk_editable_delete_selection (handle); |
| GTK.gtk_editable_insert_text (handle, buffer, buffer.length, start); |
| GTK.gtk_editable_set_position (handle, start [0]); |
| } else { |
| byte [] start = new byte [ITER_SIZEOF]; |
| byte [] end = new byte [ITER_SIZEOF]; |
| if (GTK.gtk_text_buffer_get_selection_bounds (bufferHandle, start, end)) { |
| GTK.gtk_text_buffer_delete (bufferHandle, start, end); |
| } |
| GTK.gtk_text_buffer_insert (bufferHandle, start, buffer, buffer.length); |
| GTK.gtk_text_buffer_place_cursor (bufferHandle, start); |
| scrollIfNotVisible(start, null, true); |
| } |
| applySegments (); |
| } |
| |
| |
| /** |
| * Methods that insert or select text should not modify the topIndex |
| * of the viewer. |
| * |
| * To avoid this issue we calculate the visible area, positions of the |
| * topIndex, and the insertion/selection points. If the insertion/selection points |
| * are outside the visible area, then scroll to them. Otherwise do nothing, |
| * which preserves the topIndex. |
| * |
| * @param iter the GtkTextIter representing the insertion/selection point |
| * @param scrollTo the GtkTextIter representing the point to be scrolled to (can be null) |
| * @param insert true if insertion is being performed, false if selection |
| * |
| */ |
| private void scrollIfNotVisible(byte [] iter, byte [] scrollTo, boolean insert) { |
| GdkRectangle rect = new GdkRectangle (); |
| int distanceTopIndex, numLinesVisible, lineHeight; |
| int[] insertionCoordinates = new int [1]; |
| int[] topIndexCoordinates = new int [1]; |
| byte [] indexIter = new byte [ITER_SIZEOF]; |
| |
| // Calculate the visible area |
| GTK.gtk_text_view_get_visible_rect (handle, rect); |
| lineHeight = getLineHeight (); |
| numLinesVisible = rect.height / lineHeight; |
| |
| // Get the coordinates of the insertion/selection point |
| GTK.gtk_text_view_get_line_yrange (handle, iter, insertionCoordinates, null); |
| |
| // If we have a topIndex, calculate whether the insertion/selection point |
| // is in the visible area |
| if (indexMark != 0) { |
| GTK.gtk_text_buffer_get_iter_at_mark (bufferHandle, indexIter, indexMark); |
| GTK.gtk_text_view_get_line_yrange (handle, indexIter, topIndexCoordinates, null); |
| distanceTopIndex = (insertionCoordinates [0] - topIndexCoordinates [0]) / lineHeight; |
| |
| // If it is not in the visible area, scroll to the insertion/selection point |
| if (distanceTopIndex >= numLinesVisible) { |
| if (insert) { |
| long mark = GTK.gtk_text_buffer_get_insert (bufferHandle); |
| GTK.gtk_text_view_scroll_to_mark (handle, mark, 0, true, 0, 0); |
| } else if (scrollTo != null) { |
| GTK.gtk_text_view_scroll_to_iter (handle, scrollTo, 0, true, 0, 0); |
| } |
| } |
| } else { |
| // Set topIndex to 0 and perform visibility calculations based on that |
| topIndexCoordinates [0] = 0; |
| distanceTopIndex = (insertionCoordinates [0] - topIndexCoordinates [0]) / lineHeight; |
| if (distanceTopIndex >= numLinesVisible) { |
| if (scrollTo != null && !insert) { |
| GTK.gtk_text_view_scroll_to_iter (handle, scrollTo, 0, true, 0, 0); |
| } else if (insert) { |
| long mark = GTK.gtk_text_buffer_get_insert (bufferHandle); |
| GTK.gtk_text_view_scroll_to_mark (handle, mark, 0, true, 0, 0); |
| } |
| } |
| } |
| } |
| |
| @Override |
| long paintWindow () { |
| if ((style & SWT.SINGLE) != 0) { |
| return super.paintWindow (); |
| } else { |
| GTK.gtk_widget_realize (handle); |
| // TODO: this function has been removed on GTK4 |
| return GTK.gtk_text_view_get_window (handle, GTK.GTK_TEXT_WINDOW_TEXT); |
| } |
| } |
| |
| /** |
| * 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 (); |
| if ((style & SWT.SINGLE) != 0) { |
| if (GTK.GTK4) { |
| GTK4.gtk_widget_activate_action(textHandle, OS.action_paste_clipboard, null); |
| } else { |
| GTK3.gtk_editable_paste_clipboard (handle); |
| } |
| } else { |
| long clipboard = GTK.GTK4 ? GDK.gdk_display_get_clipboard(GDK.gdk_display_get_default()) : GTK3.gtk_clipboard_get (GDK.GDK_NONE); |
| clearSegments (true); |
| GTK.gtk_text_buffer_paste_clipboard (bufferHandle, clipboard, null, GTK.gtk_text_view_get_editable (handle)); |
| applySegments (); |
| } |
| } |
| |
| @Override |
| void register () { |
| super.register (); |
| if (bufferHandle != 0) display.addWidget (bufferHandle, this); |
| if (imContext != 0) display.addWidget (imContext, this); |
| } |
| |
| @Override |
| void releaseWidget () { |
| super.releaseWidget (); |
| fixIM (); |
| message = null; |
| } |
| |
| /** |
| * 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 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 SegmentEvent |
| * @see SegmentListener |
| * @see #addSegmentListener |
| * |
| * @since 3.8 |
| */ |
| public void removeSegmentListener (SegmentListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| eventTable.unhook (SWT.Segments, listener); |
| clearSegments (true); |
| applySegments (); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the control is selected by the user. |
| * |
| * @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 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 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 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 (); |
| if ((style & SWT.SINGLE) != 0) { |
| GTK.gtk_editable_select_region (handle, 0, -1); |
| } else { |
| byte [] start = new byte [ITER_SIZEOF]; |
| byte [] end = new byte [ITER_SIZEOF]; |
| GTK.gtk_text_buffer_get_iter_at_offset (bufferHandle, start, 0); |
| GTK.gtk_text_buffer_get_end_iter (bufferHandle, end); |
| GTK.gtk_text_buffer_select_range(bufferHandle, start, end); |
| } |
| } |
| |
| @Override |
| GdkRGBA getContextBackgroundGdkRGBA () { |
| if (background != null && (state & BACKGROUND) != 0) { |
| return background; |
| } |
| return defaultBackground(); |
| } |
| |
| @Override |
| GdkRGBA getContextColorGdkRGBA () { |
| if (foreground != null) { |
| return foreground; |
| } else { |
| return display.COLOR_WIDGET_FOREGROUND_RGBA; |
| } |
| } |
| |
| @Override |
| void setBackgroundGdkRGBA (long context, long handle, GdkRGBA rgba) { |
| /* Setting the background color overrides the selected background color. |
| * To prevent this, we need to re-set the default. This can be done with CSS |
| * on GTK3.16+, or by using GtkStateFlags as an argument to |
| * gtk_widget_override_background_color() on versions of GTK3 less than 3.16. |
| */ |
| if (rgba == null) { |
| background = defaultBackground(); |
| } else { |
| background = rgba; |
| } |
| GdkRGBA selectedBackground = display.getSystemColor(SWT.COLOR_LIST_SELECTION).handle; |
| GdkRGBA selectedForeground = display.getSystemColor(SWT.COLOR_LIST_SELECTION_TEXT).handle; |
| String css; |
| String properties; |
| if ((style & SWT.SINGLE) != 0) { |
| properties = "entry {background: " + display.gtk_rgba_to_css_string(background) + ";}\n" |
| + "entry:selected {background-color: " + display.gtk_rgba_to_css_string(selectedBackground) + ";}\n" |
| + "entry selection {color: " + display.gtk_rgba_to_css_string(selectedForeground) + ";}"; |
| } else { |
| properties = "textview text {background-color: " + display.gtk_rgba_to_css_string(background) + ";}\n" |
| + "textview text:selected {background-color: " + display.gtk_rgba_to_css_string(selectedBackground) + ";}\n" |
| + "textview text selection {color: " + display.gtk_rgba_to_css_string(selectedForeground) + ";}"; |
| } |
| css = properties; |
| |
| // Cache background color |
| cssBackground = css; |
| |
| // Apply background color and any foreground color |
| String finalCss = display.gtk_css_create_css_color_string (cssBackground, cssForeground, SWT.BACKGROUND); |
| gtk_css_provider_load_from_css(context, finalCss); |
| } |
| |
| @Override |
| void setForegroundGdkRGBA (GdkRGBA rgba) { |
| foreground = rgba; |
| GdkRGBA toSet = rgba == null ? display.COLOR_WIDGET_FOREGROUND_RGBA : rgba; |
| setForegroundGdkRGBA (handle, toSet); |
| } |
| |
| @Override |
| void setCursor (long cursor) { |
| long defaultCursor = 0; |
| if (cursor == 0) { |
| if (GTK.GTK4) { |
| defaultCursor = GDK.gdk_cursor_new_from_name("xterm", 0); |
| } else { |
| defaultCursor = GDK.gdk_cursor_new_from_name (GDK.gdk_display_get_default(), "xterm"); |
| } |
| } |
| super.setCursor (cursor != 0 ? cursor : defaultCursor); |
| if (cursor == 0) OS.g_object_unref (defaultCursor); |
| } |
| |
| /** |
| * 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><p> |
| * Note: This operation is a hint and is not supported on |
| * platforms that do not have this concept. |
| * </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 (); |
| this.doubleClick = doubleClick; |
| } |
| |
| /** |
| * 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. Setting |
| * the echo character to '\0' clears the echo |
| * character and redraws the original text. |
| * If for any reason the echo character is invalid, |
| * or if the platform does not allow modification |
| * of the echo character, the default echo character |
| * for the platform is used. |
| * </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) { |
| GTK.gtk_entry_set_visibility (handle, echo == '\0'); |
| GTK.gtk_entry_set_invisible_char (handle, echo); |
| } |
| } |
| |
| /** |
| * 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 (); |
| style &= ~SWT.READ_ONLY; |
| if (!editable) style |= SWT.READ_ONLY; |
| if ((style & SWT.SINGLE) != 0) { |
| GTK.gtk_editable_set_editable (handle, editable); |
| } else { |
| GTK.gtk_text_view_set_editable (handle, editable); |
| } |
| } |
| |
| @Override |
| void setFontDescription (long font) { |
| super.setFontDescription (font); |
| setTabStops (tabs); |
| } |
| |
| /** |
| * Sets the widget message. The message text is displayed |
| * as a hint for the user, indicating the purpose of the field. |
| * <p> |
| * Typically this is used in conjunction with <code>SWT.SEARCH</code>. |
| * </p> |
| * |
| * @param message the new message |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the message 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> |
| * |
| * @since 3.3 |
| */ |
| public void setMessage (String message) { |
| checkWidget (); |
| if (message == null) error (SWT.ERROR_NULL_ARGUMENT); |
| this.message = message; |
| if ((style & SWT.SINGLE) != 0) { |
| byte [] buffer = Converter.wcsToMbcs (message, true); |
| GTK.gtk_entry_set_placeholder_text (handle, buffer); |
| return; |
| } |
| redraw (false); |
| } |
| |
| /** |
| * Sets the orientation of the receiver, which must be one |
| * of the constants <code>SWT.LEFT_TO_RIGHT</code> or <code>SWT.RIGHT_TO_LEFT</code>. |
| * <p> |
| * Note: This operation is a hint and is not supported on |
| * platforms that do not have this concept. |
| * </p> |
| * |
| * @param orientation new orientation style |
| * |
| * @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> |
| * |
| * @since 2.1.2 |
| */ |
| @Override |
| public void setOrientation (int orientation) { |
| checkWidget(); |
| } |
| |
| /** |
| * 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 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 (); |
| start = translateOffset (start); |
| if ((style & SWT.SINGLE) != 0) { |
| long ptr = GTK3.gtk_entry_get_text (handle); |
| start = (int)OS.g_utf16_offset_to_utf8_offset (ptr, start); |
| GTK.gtk_editable_set_position (handle, start); |
| } else { |
| byte [] startIter = new byte [ITER_SIZEOF]; |
| byte [] endIter = new byte [ITER_SIZEOF]; |
| GTK.gtk_text_buffer_get_bounds (bufferHandle, startIter, endIter); |
| long ptr = GTK.gtk_text_buffer_get_text (bufferHandle, startIter, endIter, true); |
| start = (int)OS.g_utf16_offset_to_utf8_offset (ptr, start); |
| OS.g_free (ptr); |
| GTK.gtk_text_buffer_get_iter_at_offset (bufferHandle, startIter, start); |
| GTK.gtk_text_buffer_place_cursor (bufferHandle, startIter); |
| scrollIfNotVisible(startIter, startIter, false); |
| } |
| } |
| |
| /** |
| * Sets the selection to the range specified |
| * by the given start and end indices. |
| * <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 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 (); |
| start = translateOffset (start); |
| end = translateOffset (end); |
| if ((style & SWT.SINGLE) != 0) { |
| long ptr; |
| if (GTK.GTK4) { |
| ptr = GTK.gtk_entry_buffer_get_text(bufferHandle); |
| } else { |
| ptr = GTK3.gtk_entry_get_text (handle); |
| } |
| start = (int)OS.g_utf16_offset_to_utf8_offset (ptr, start); |
| end = (int)OS.g_utf16_offset_to_utf8_offset (ptr, end); |
| GTK.gtk_editable_set_position (handle, start); |
| GTK.gtk_editable_select_region (handle, start, end); |
| } else { |
| byte [] startIter = new byte [ITER_SIZEOF]; |
| byte [] endIter = new byte [ITER_SIZEOF]; |
| GTK.gtk_text_buffer_get_bounds (bufferHandle, startIter, endIter); |
| long ptr = GTK.gtk_text_buffer_get_text (bufferHandle, startIter, endIter, true); |
| start = (int)OS.g_utf16_offset_to_utf8_offset (ptr, start); |
| end = (int)OS.g_utf16_offset_to_utf8_offset (ptr, end); |
| OS.g_free (ptr); |
| GTK.gtk_text_buffer_get_iter_at_offset (bufferHandle, startIter, start); |
| GTK.gtk_text_buffer_get_iter_at_offset (bufferHandle, endIter, end); |
| scrollIfNotVisible(startIter, startIter, false); |
| GTK.gtk_text_buffer_select_range(bufferHandle, startIter, endIter); |
| } |
| } |
| |
| /** |
| * Sets the selection to the range specified |
| * by the given point, where the x coordinate |
| * represents the start index and the y coordinate |
| * represents the end index. |
| * <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 point 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); |
| setSelection (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 |
| * |
| * @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 (); |
| if (tabs < 0) return; |
| setTabStops (this.tabs = tabs); |
| } |
| |
| void setTabStops (int tabs) { |
| int tabWidth = getTabWidth (tabs); |
| long tabArray = OS.pango_tab_array_new (1, false); |
| OS.pango_tab_array_set_tab (tabArray, 0, OS.PANGO_TAB_LEFT, tabWidth); |
| if ((style & SWT.SINGLE) != 0) { |
| GTK.gtk_entry_set_tabs (handle, tabArray); |
| } else { |
| GTK.gtk_text_view_set_tabs (handle, tabArray); |
| } |
| OS.pango_tab_array_free (tabArray); |
| } |
| |
| /** |
| * Sets the contents of the receiver to the given string. If the receiver has style |
| * SINGLE and the argument contains multiple lines of text, the result of this |
| * operation is undefined and may vary from platform to platform. |
| * <p> |
| * Note: If control characters like '\n', '\t' etc. are used |
| * in the string, then the behavior is platform dependent. |
| * </p> |
| * @param string 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); |
| /* |
| * Feature in gtk. When text is set in gtk, separate events are fired for the deletion and |
| * insertion of the text. This is not wrong, but is inconsistent with other platforms. The |
| * fix is to block the firing of these events and fire them ourselves in a consistent manner. |
| */ |
| if (hooks (SWT.Verify) || filters (SWT.Verify)) { |
| string = verifyText (string, 0, getCharCount ()); |
| if (string == null) return; |
| } |
| char [] text = new char [string.length()]; |
| string.getChars(0, text.length, text, 0); |
| setText (text); |
| } |
| |
| /** |
| * Sets the contents of the receiver to the characters in the array. If the receiver |
| * has style <code>SWT.SINGLE</code> and the argument contains multiple lines of text |
| * then the result of this operation is undefined and may vary between platforms. |
| * <p> |
| * Note: Use this API to prevent the text from being written into a String |
| * object whose lifecycle is outside of your control. This can help protect |
| * the text, for example, when the widget is used as a password field. |
| * However, the text can't be protected if an {@link SWT#Segments} or |
| * {@link SWT#Verify} listener has been added to the widget. |
| * </p> |
| * |
| * @param text a character array that contains the new text |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the array 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 #getTextChars() |
| * |
| * @since 3.7 |
| */ |
| public void setTextChars (char [] text) { |
| checkWidget (); |
| if (text == null) error (SWT.ERROR_NULL_ARGUMENT); |
| /* |
| * Feature in gtk. When text is set in gtk, separate events are fired for the deletion and |
| * insertion of the text. This is not wrong, but is inconsistent with other platforms. The |
| * fix is to block the firing of these events and fire them ourselves in a consistent manner. |
| */ |
| if (hooks (SWT.Verify) || filters (SWT.Verify)) { |
| String string = verifyText (new String(text), 0, getCharCount ()); |
| if (string == null) return; |
| text = new char [string.length()]; |
| string.getChars (0, text.length, text, 0); |
| } |
| setText (text); |
| } |
| |
| void setText (char [] text) { |
| clearSegments (false); |
| if ((style & SWT.SINGLE) != 0) { |
| byte[] buffer = Converter.wcsToMbcs(text, true); |
| OS.g_signal_handlers_block_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_signal_handlers_block_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_TEXT); |
| OS.g_signal_handlers_block_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, INSERT_TEXT); |
| if (GTK.GTK4) { |
| GTK.gtk_entry_buffer_set_text(bufferHandle, buffer, -1); |
| } else { |
| GTK3.gtk_entry_set_text(handle, buffer); |
| } |
| OS.g_signal_handlers_unblock_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_signal_handlers_unblock_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_TEXT); |
| OS.g_signal_handlers_unblock_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, INSERT_TEXT); |
| Arrays.fill(buffer, (byte) 0); |
| } else { |
| byte [] buffer = Converter.wcsToMbcs (text, false); |
| byte [] position = new byte [ITER_SIZEOF]; |
| OS.g_signal_handlers_block_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_signal_handlers_block_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_RANGE); |
| OS.g_signal_handlers_block_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, TEXT_BUFFER_INSERT_TEXT); |
| GTK.gtk_text_buffer_set_text (bufferHandle, buffer, buffer.length); |
| OS.g_signal_handlers_unblock_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_signal_handlers_unblock_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_RANGE); |
| OS.g_signal_handlers_unblock_matched (bufferHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, TEXT_BUFFER_INSERT_TEXT); |
| GTK.gtk_text_buffer_get_iter_at_offset (bufferHandle, position, 0); |
| GTK.gtk_text_buffer_place_cursor (bufferHandle, position); |
| long mark = GTK.gtk_text_buffer_get_insert (bufferHandle); |
| GTK.gtk_text_view_scroll_to_mark (handle, mark, 0, true, 0, 0); |
| Arrays.fill (buffer, (byte) 0); |
| } |
| sendEvent (SWT.Modify); |
| if ((style & SWT.SEARCH) != 0) { |
| if ((style & SWT.ICON_CANCEL) == 0) { |
| GTK.gtk_entry_set_icon_from_icon_name(handle, GTK.GTK_ENTRY_ICON_SECONDARY, null); |
| } |
| } |
| applySegments (); |
| } |
| |
| /** |
| * Sets the maximum number of characters that the receiver |
| * is capable of holding to be the argument. |
| * <p> |
| * Instead of trying to set the text limit to zero, consider |
| * creating a read-only text widget. |
| * </p><p> |
| * To reset this value to the default, use <code>setTextLimit(Text.LIMIT)</code>. |
| * Specifying a limit value larger than <code>Text.LIMIT</code> sets the |
| * receiver's limit to <code>Text.LIMIT</code>. |
| * </p> |
| * |
| * @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> |
| * |
| * @see #LIMIT |
| */ |
| public void setTextLimit (int limit) { |
| checkWidget (); |
| if (limit == 0) error (SWT.ERROR_CANNOT_BE_ZERO); |
| if ((style & SWT.SINGLE) != 0) { |
| GTK.gtk_entry_set_max_length (handle, segments != null ? Math.min (LIMIT, translateOffset (limit)) : 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; |
| byte [] position = new byte [ITER_SIZEOF]; |
| GTK.gtk_text_buffer_get_iter_at_line (bufferHandle, position, index); |
| /* |
| * Feature in GTK: create a new GtkTextMark for the purposes of keeping track of the top index. In getTopIndex() we |
| * can use this without worrying about line validation. See bug 487467. |
| * |
| * We also cache the current GtkAdjustment value for future comparison in getTopIndex(). |
| */ |
| byte [] buffer = Converter.wcsToMbcs ("index_mark", true); |
| indexMark = GTK.gtk_text_buffer_create_mark (bufferHandle, buffer, position, true); |
| GTK.gtk_text_view_scroll_to_mark (handle, indexMark, 0, true, 0, 0); |
| long vAdjustment = GTK.gtk_scrollable_get_vadjustment (handle); |
| cachedAdjustment = GTK.gtk_adjustment_get_value (vAdjustment); |
| } |
| |
| /** |
| * 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 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; |
| long mark = GTK.gtk_text_buffer_get_selection_bound (bufferHandle); |
| GTK.gtk_text_view_scroll_to_mark (handle, mark, 0, true, 0, 0); |
| mark = GTK.gtk_text_buffer_get_insert (bufferHandle); |
| GTK.gtk_text_view_scroll_to_mark (handle, mark, 0, true, 0, 0); |
| } |
| |
| int translateOffset (int offset) { |
| if (segments == null) return offset; |
| for (int i = 0, nSegments = segments.length; i < nSegments && offset - i >= segments[i]; i++) { |
| offset++; |
| } |
| return offset; |
| } |
| |
| @Override |
| boolean translateTraversal (long event) { |
| int [] key = new int[1]; |
| if (GTK.GTK4) { |
| key[0] = GDK.gdk_key_event_get_keyval(event); |
| } else { |
| GDK.gdk_event_get_keyval(event, key); |
| } |
| |
| switch (key[0]) { |
| case GDK.GDK_KP_Enter: |
| case GDK.GDK_Return: { |
| if (imContext != 0) { |
| long [] preeditString = new long [1]; |
| GTK.gtk_im_context_get_preedit_string (imContext, preeditString, null, null); |
| if (preeditString [0] != 0) { |
| int length = C.strlen (preeditString [0]); |
| OS.g_free (preeditString [0]); |
| if (length != 0) return false; |
| } |
| } |
| } |
| } |
| return super.translateTraversal (event); |
| } |
| |
| @Override |
| int traversalCode (int key, long event) { |
| int bits = super.traversalCode (key, event); |
| if ((style & SWT.READ_ONLY) != 0) return bits; |
| if ((style & SWT.MULTI) != 0) { |
| bits &= ~SWT.TRAVERSE_RETURN; |
| if (key == GDK.GDK_Tab && event != 0) { |
| int [] eventState = new int [1]; |
| if (GTK.GTK4) { |
| eventState[0] = GDK.gdk_event_get_modifier_state(event); |
| } else { |
| GDK.gdk_event_get_state(event, eventState); |
| } |
| |
| boolean next = (eventState[0] & GDK.GDK_SHIFT_MASK) == 0; |
| if (next && (eventState[0] & GDK.GDK_CONTROL_MASK) == 0) { |
| bits &= ~(SWT.TRAVERSE_TAB_NEXT | SWT.TRAVERSE_TAB_PREVIOUS); |
| } |
| } |
| } |
| return bits; |
| } |
| |
| int untranslateOffset (int offset) { |
| if (segments == null) return offset; |
| for (int i = 0, nSegments = segments.length; i < nSegments && offset > segments[i]; i++) { |
| offset--; |
| } |
| return offset; |
| } |
| |
| String verifyText (String string, int start, int end) { |
| if (string != null && string.length () == 0 && start == end) return null; |
| Event event = new Event (); |
| event.text = string; |
| event.start = start; |
| event.end = end; |
| long eventPtr = GTK.GTK4 ? 0 : GTK3.gtk_get_current_event(); |
| if (eventPtr != 0) { |
| int type = GDK.gdk_event_get_event_type(eventPtr); |
| type = fixGdkEventTypeValues(type); |
| switch (type) { |
| case GDK.GDK_KEY_PRESS: |
| setKeyState (event, eventPtr); |
| break; |
| } |
| gdk_event_free (eventPtr); |
| } |
| /* |
| * It is possible (but unlikely), that application |
| * code could have disposed the widget in the verify |
| * event. If this happens, answer null to cancel |
| * the operation. |
| */ |
| sendEvent (SWT.Verify, event); |
| if (!event.doit || isDisposed ()) return null; |
| return event.text; |
| } |
| |
| @Override |
| long windowProc (long handle, long user_data) { |
| if (hooks (SWT.Segments) || filters (SWT.Segments) || segments != null) { |
| switch ((int)user_data) { |
| case BACKSPACE: |
| case COPY_CLIPBOARD: |
| case CUT_CLIPBOARD: |
| case PASTE_CLIPBOARD: { |
| clearSegments (true); |
| break; |
| } |
| case BACKSPACE_INVERSE: |
| case COPY_CLIPBOARD_INVERSE: |
| case CUT_CLIPBOARD_INVERSE: |
| case PASTE_CLIPBOARD_INVERSE: { |
| applySegments (); |
| break; |
| } |
| } |
| } |
| return super.windowProc (handle, user_data); |
| } |
| |
| @Override |
| long windowProc (long handle, long arg0, long user_data) { |
| if (hooks (SWT.Segments) || filters (SWT.Segments) || segments != null) { |
| switch ((int)user_data) { |
| case DIRECTION_CHANGED: { |
| clearSegments (true); |
| applySegments (); |
| break; |
| } |
| } |
| } |
| return super.windowProc (handle, arg0, user_data); |
| } |
| |
| @Override |
| long windowProc (long handle, long arg0, long arg1, long user_data) { |
| if (hooks (SWT.Segments) || filters (SWT.Segments) || segments != null) { |
| switch ((int)user_data) { |
| case DELETE_FROM_CURSOR: { |
| clearSegments (true); |
| break; |
| } |
| case DELETE_FROM_CURSOR_INVERSE: { |
| applySegments (); |
| break; |
| } |
| } |
| } |
| return super.windowProc (handle, arg0, arg1, user_data); |
| } |
| |
| @Override |
| long windowProc (long handle, long arg0, long arg1, long arg2, long user_data) { |
| if (hooks (SWT.Segments) || filters (SWT.Segments) || segments != null) { |
| switch ((int)user_data) { |
| case MOVE_CURSOR: { |
| if (arg0 == GTK.GTK_MOVEMENT_VISUAL_POSITIONS) { |
| clearSegments (true); |
| } |
| break; |
| } |
| case MOVE_CURSOR_INVERSE: { |
| if (arg0 == GTK.GTK_MOVEMENT_VISUAL_POSITIONS) { |
| applySegments (); |
| } |
| break; |
| } |
| } |
| } |
| return super.windowProc (handle, arg0, arg1, arg2, user_data); |
| } |
| |
| } |
