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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/widgets/Link.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/widgets/Link.java | 674 |
1 files changed, 0 insertions, 674 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/widgets/Link.java b/bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/widgets/Link.java deleted file mode 100644 index 2384f27c94..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/widgets/Link.java +++ /dev/null @@ -1,674 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2006 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.swt.widgets; - -import org.eclipse.swt.internal.photon.*; -import org.eclipse.swt.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.events.*; - -/** - * Instances of this class represent a selectable - * user interface object that displays a text with - * links. - * <p> - * <dl> - * <dt><b>Styles:</b></dt> - * <dd>(none)</dd> - * <dt><b>Events:</b></dt> - * <dd>Selection</dd> - * </dl> - * <p> - * IMPORTANT: This class is <em>not</em> intended to be subclassed. - * </p> - * - * @since 3.1 - */ -public class Link extends Control { - String text; - TextLayout layout; - Color linkColor, disabledColor; - Point [] offsets; - Point selection; - String [] ids; - int [] mnemonics; - int focusIndex; - - static final RGB LINK_FOREGROUND = new RGB (0, 51, 153); - static final RGB LINK_DISABLED_FOREGROUND = new RGB (172, 168, 153); - -/** - * 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 Widget#checkSubclass - * @see Widget#getStyle - */ -public Link (Composite parent, int style) { - super (parent, style); -} - -/** - * Adds the listener to the collection of listeners who will - * be notified when the control is selected, by sending - * it one of the messages defined in the <code>SelectionListener</code> - * interface. - * <p> - * <code>widgetSelected</code> is called when the control is selected. - * <code>widgetDefaultSelected</code> is not called. - * </p> - * - * @param listener the listener which should be notified - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see SelectionListener - * @see #removeSelectionListener - * @see SelectionEvent - */ -public void addSelectionListener (SelectionListener listener) { - checkWidget (); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.Selection, typedListener); - addListener (SWT.DefaultSelection, typedListener); -} - -public Point computeSize (int wHint, int hHint, boolean changed) { - checkWidget (); - if (wHint != SWT.DEFAULT && wHint < 0) wHint = 0; - if (hHint != SWT.DEFAULT && hHint < 0) hHint = 0; - int width, height; - int layoutWidth = layout.getWidth (); - //TEMPORARY CODE - if (wHint == 0) { - layout.setWidth (1); - Rectangle rect = layout.getBounds (); - width = 0; - height = rect.height; - } else { - layout.setWidth (wHint); - Rectangle rect = layout.getBounds (); - width = rect.width; - height = rect.height; - } - layout.setWidth (layoutWidth); - if (wHint != SWT.DEFAULT) width = wHint; - if (hHint != SWT.DEFAULT) height = hHint; - int border = getBorderWidth (); - width += border * 2; - height += border * 2; - return new Point (width, height); -} - -void createHandle (int index) { - SWT.error(SWT.ERROR_NOT_IMPLEMENTED);//tmp code - state |= HANDLE; - int clazz = display.PtContainer; - int parentHandle = parent.parentingHandle (); - int [] args = { - OS.Pt_ARG_FLAGS, 0, OS.Pt_GETS_FOCUS, - OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS, - }; - handle = OS.PtCreateWidget (clazz, parentHandle, args.length / 3, args); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - - layout = new TextLayout (display); - linkColor = new Color (display, LINK_FOREGROUND); - disabledColor = new Color (display, LINK_DISABLED_FOREGROUND); - offsets = new Point [0]; - ids = new String [0]; - mnemonics = new int [0]; - selection = new Point (-1, -1); - focusIndex = -1; -} - -void createWidget (int index) { - super.createWidget (index); - text = ""; - //TODO accessibility -} - -void drawWidget(int widget, int damage) { - //super.drawWidget(widget, damage); - int selStart = selection.x; - int selEnd = selection.y; - if (selStart > selEnd) { - selStart = selection.y; - selEnd = selection.x; - } - // temporary code to disable text selection - selStart = selEnd = -1; - GCData data = new GCData(); - if (OS.QNX_MAJOR > 6 || (OS.QNX_MAJOR == 6 && (OS.QNX_MINOR > 2 || (OS.QNX_MINOR == 2 && OS.QNX_MICRO >= 1)))) { - data.paint = true; - } - GC gc = GC.photon_new (this, data); - //set clipping on the GC? - if ((state & DISABLED) != 0) gc.setForeground (disabledColor); - layout.draw (gc, 0, 0, selStart, selEnd, null, null); - if (hasFocus () && focusIndex != -1) { - Rectangle [] rects = getRectangles (focusIndex); - for (int i = 0; i < rects.length; i++) { - Rectangle rectangle = rects [i]; - gc.drawFocus (rectangle.x, rectangle.y, rectangle.width, rectangle.height); - } - } - gc.dispose (); -} - -String getNameText () { - return getText (); -} - -Rectangle [] getRectangles (int linkIndex) { - int lineCount = layout.getLineCount (); - Rectangle [] rects = new Rectangle [lineCount]; - int [] lineOffsets = layout.getLineOffsets (); - Point point = offsets [linkIndex]; - int lineStart = 1; - while (point.x > lineOffsets [lineStart]) lineStart++; - int lineEnd = 1; - while (point.y > lineOffsets [lineEnd]) lineEnd++; - int index = 0; - if (lineStart == lineEnd) { - rects [index++] = layout.getBounds (point.x, point.y); - } else { - rects [index++] = layout.getBounds (point.x, lineOffsets [lineStart]-1); - rects [index++] = layout.getBounds (lineOffsets [lineEnd-1], point.y); - if (lineEnd - lineStart > 1) { - for (int i = lineStart; i < lineEnd - 1; i++) { - rects [index++] = layout.getLineBounds (i); - } - } - } - if (rects.length != index) { - Rectangle [] tmp = new Rectangle [index]; - System.arraycopy (rects, 0, tmp, 0, index); - rects = tmp; - } - return rects; -} - -/** - * Returns the receiver's text, which will be an empty - * string if it has never been set. - * - * @return the receiver'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> - */ -public String getText () { - checkWidget (); - return text; -} - -void enableWidget (boolean enabled) { - super.enableWidget (enabled); - TextStyle linkStyle = new TextStyle (null, enabled ? linkColor : disabledColor, null); - linkStyle.underline = true; - for (int i = 0; i < offsets.length; i++) { - Point point = offsets [i]; - layout.setStyle (linkStyle, point.x, point.y); - } - redraw (); -} - -String parse (String string) { - int length = string.length (); - offsets = new Point [length / 4]; - ids = new String [length / 4]; - mnemonics = new int [length / 4 + 1]; - StringBuffer result = new StringBuffer (); - char [] buffer = new char [length]; - string.getChars (0, string.length (), buffer, 0); - int index = 0, state = 0, linkIndex = 0; - int start = 0, tagStart = 0, linkStart = 0, endtagStart = 0, refStart = 0; - while (index < length) { - char c = Character.toLowerCase (buffer [index]); - switch (state) { - case 0: - if (c == '<') { - tagStart = index; - state++; - } - break; - case 1: - if (c == 'a') state++; - break; - case 2: - switch (c) { - case 'h': - state = 7; - break; - case '>': - linkStart = index + 1; - state++; - break; - default: - if (Character.isWhitespace(c)) break; - else state = 13; - } - break; - case 3: - if (c == '<') { - endtagStart = index; - state++; - } - break; - case 4: - state = c == '/' ? state + 1 : 3; - break; - case 5: - state = c == 'a' ? state + 1 : 3; - break; - case 6: - if (c == '>') { - mnemonics [linkIndex] = parseMnemonics (buffer, start, tagStart, result); - int offset = result.length (); - parseMnemonics (buffer, linkStart, endtagStart, result); - offsets [linkIndex] = new Point (offset, result.length () - 1); - if (ids [linkIndex] == null) { - ids [linkIndex] = new String (buffer, linkStart, endtagStart - linkStart); - } - linkIndex++; - start = tagStart = linkStart = endtagStart = refStart = index + 1; - state = 0; - } else { - state = 3; - } - break; - case 7: - state = c == 'r' ? state + 1 : 0; - break; - case 8: - state = c == 'e' ? state + 1 : 0; - break; - case 9: - state = c == 'f' ? state + 1 : 0; - break; - case 10: - state = c == '=' ? state + 1 : 0; - break; - case 11: - if (c == '"') { - state++; - refStart = index + 1; - } else { - state = 0; - } - break; - case 12: - if (c == '"') { - ids[linkIndex] = new String (buffer, refStart, index - refStart); - state = 2; - } - break; - case 13: - if (Character.isWhitespace (c)) { - state = 0; - } else if (c == '='){ - state++; - } - break; - case 14: - state = c == '"' ? state + 1 : 0; - break; - case 15: - if (c == '"') state = 2; - break; - default: - state = 0; - break; - } - index++; - } - if (start < length) { - int tmp = parseMnemonics (buffer, start, tagStart, result); - int mnemonic = parseMnemonics (buffer, linkStart, index, result); - if (mnemonic == -1) mnemonic = tmp; - mnemonics [linkIndex] = mnemonic; - } else { - mnemonics [linkIndex] = -1; - } - if (offsets.length != linkIndex) { - Point [] newOffsets = new Point [linkIndex]; - System.arraycopy (offsets, 0, newOffsets, 0, linkIndex); - offsets = newOffsets; - String [] newIDs = new String [linkIndex]; - System.arraycopy (ids, 0, newIDs, 0, linkIndex); - ids = newIDs; - int [] newMnemonics = new int [linkIndex + 1]; - System.arraycopy (mnemonics, 0, newMnemonics, 0, linkIndex + 1); - mnemonics = newMnemonics; - } - return result.toString (); -} - -int parseMnemonics (char[] buffer, int start, int end, StringBuffer result) { - int mnemonic = -1, index = start; - while (index < end) { - if (buffer [index] == '&') { - if (index + 1 < end && buffer [index + 1] == '&') { - result.append (buffer [index]); - index++; - } else { - mnemonic = result.length(); - } - } else { - result.append (buffer [index]); - } - index++; - } - return mnemonic; -} - -int Ph_EV_BUT_PRESS (int widget, int info) { - int result = super.Ph_EV_BUT_PRESS (widget, info); - PtCallbackInfo_t cbinfo = new PtCallbackInfo_t (); - OS.memmove (cbinfo, info, PtCallbackInfo_t.sizeof); - PhEvent_t ev = new PhEvent_t (); - OS.memmove (ev, cbinfo.event, PhEvent_t.sizeof); - int data = OS.PhGetData (cbinfo.event); - PhPointerEvent_t pe = new PhPointerEvent_t (); - OS.memmove (pe, data, PhPointerEvent_t.sizeof); - if (pe.buttons != OS.Ph_BUTTON_SELECT) return result; - - if (focusIndex != -1) setFocus (); - int x = pe.pos_x + ev.translation_x; - int y = pe.pos_y + ev.translation_y; - int offset = layout.getOffset (x, y, null); - int oldSelectionX = selection.x; - int oldSelectionY = selection.y; - selection.x = offset; - selection.y = -1; - if (oldSelectionX != -1 && oldSelectionY != -1) { - if (oldSelectionX > oldSelectionY) { - int temp = oldSelectionX; - oldSelectionX = oldSelectionY; - oldSelectionY = temp; - } - Rectangle rect = layout.getBounds (oldSelectionX, oldSelectionY); - redraw (rect.x, rect.y, rect.width, rect.height, false); - } - for (int j = 0; j < offsets.length; j++) { - Rectangle [] rects = getRectangles (j); - for (int i = 0; i < rects.length; i++) { - Rectangle rect = rects [i]; - if (rect.contains (x, y)) { - if (j != focusIndex) { - focusIndex = j; - redraw (); - } - return result; - } - } - } - return result; -} - -int Ph_EV_BUT_RELEASE (int widget, int info) { - int result = super.Ph_EV_BUT_PRESS (widget, info); - if (focusIndex == -1) return result; - PtCallbackInfo_t cbinfo = new PtCallbackInfo_t (); - OS.memmove (cbinfo, info, PtCallbackInfo_t.sizeof); - PhEvent_t ev = new PhEvent_t (); - OS.memmove (ev, cbinfo.event, PhEvent_t.sizeof); - int data = OS.PhGetData (cbinfo.event); - PhPointerEvent_t pe = new PhPointerEvent_t (); - OS.memmove (pe, data, PhPointerEvent_t.sizeof); - if (pe.buttons != OS.Ph_BUTTON_SELECT) return result; - - int x = pe.pos_x + ev.translation_x; - int y = pe.pos_y + ev.translation_y; - Rectangle [] rects = getRectangles (focusIndex); - for (int i = 0; i < rects.length; i++) { - Rectangle rect = rects [i]; - if (rect.contains (x, y)) { - Event event = new Event (); - event.text = ids [focusIndex]; - sendEvent (SWT.Selection, event); - return result; - } - } - return result; -} - -int Ph_EV_DRAG (int widget, int info) { - int result = super.Ph_EV_DRAG (widget, info); - PtCallbackInfo_t cbinfo = new PtCallbackInfo_t (); - OS.memmove (cbinfo, info, PtCallbackInfo_t.sizeof); - PhEvent_t ev = new PhEvent_t (); - OS.memmove (ev, cbinfo.event, PhEvent_t.sizeof); - int data = OS.PhGetData (cbinfo.event); - PhPointerEvent_t pe = new PhPointerEvent_t (); - OS.memmove (pe, data, PhPointerEvent_t.sizeof); - int x = pe.pos_x + ev.translation_x; - int y = pe.pos_y + ev.translation_y; - -// if (pe.buttons != OS.Ph_BUTTON_SELECT) return result;//?? - if ((pe.button_state & OS.Ph_BUTTON_SELECT) != 0) { - int oldSelection = selection.y; - selection.y = layout.getOffset (x, y, null); - if (selection.y != oldSelection) { - int newSelection = selection.y; - if (oldSelection > newSelection) { - int temp = oldSelection; - oldSelection = newSelection; - newSelection = temp; - } - Rectangle rect = layout.getBounds (oldSelection, newSelection); - redraw (rect.x, rect.y, rect.width, rect.height, false); - } - } else { - for (int j = 0; j < offsets.length; j++) { - Rectangle [] rects = getRectangles (j); - for (int i = 0; i < rects.length; i++) { - Rectangle rect = rects [i]; - if (rect.contains (x, y)) { - setCursor (display.getSystemCursor (SWT.CURSOR_HAND)); - return result; - } - } - } - setCursor (null); - } - return result; -} - -int Pt_CB_GOT_FOCUS (int widget, int info) { - int result = super.Pt_CB_GOT_FOCUS (widget, info); - redraw (); - return result; -} - -int Pt_CB_LOST_FOCUS (int widget, int info) { - int result = super.Pt_CB_LOST_FOCUS (widget, info); - redraw (); - return result; -} - -void releaseWidget () { - super.releaseWidget (); - if (layout != null) layout.dispose (); - layout = null; - if (linkColor != null) linkColor.dispose (); - linkColor = null; - if (disabledColor != null) disabledColor.dispose (); - disabledColor = null; - offsets = null; - ids = null; - mnemonics = null; - text = null; -} - -/** - * Removes the listener from the collection of listeners who will - * be notified when the control is selected. - * - * @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); -} - -int setBounds(int x, int y, int width, int height, boolean move, boolean resize, boolean events) { - int result = super.setBounds(x, y, width, height, move, resize, events); - if ((result & RESIZED) != 0) { - layout.setWidth (width > 0 ? width : -1); - } - return result; -} - -public void setFont (Font font) { - super.setFont (font); - layout.setFont (font); -} - -/** - * Sets the receiver's text. - * <p> - * The string can contain both regular text and hyperlinks. A hyperlink - * is delimited by an anchor tag, <A> and </A>. Within an - * anchor, a single HREF attribute is supported. When a hyperlink is - * selected, the text field of the selection event contains either the - * text of the hyperlink or the value of its HREF, if one was specified. - * In the rare case of identical hyperlinks within the same string, the - * HREF tag can be used to distinguish between them. The string may - * include the mnemonic character and line delimiters. - * </p> - * - * @param string the new text - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the text 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); - if (string.equals (text)) return; - text = string; - layout.setText (parse (string)); - focusIndex = offsets.length > 0 ? 0 : -1; - selection.x = selection.y = -1; - boolean enabled = (state & DISABLED) == 0; - TextStyle linkStyle = new TextStyle (null, enabled ? linkColor : disabledColor, null); - linkStyle.underline = true; - for (int i = 0; i < offsets.length; i++) { - Point point = offsets [i]; - layout.setStyle (linkStyle, point.x, point.y); - } - TextStyle mnemonicStyle = new TextStyle (null, null, null); - mnemonicStyle.underline = true; - for (int i = 0; i < mnemonics.length; i++) { - int mnemonic = mnemonics [i]; - if (mnemonic != -1) { - layout.setStyle (mnemonicStyle, mnemonic, mnemonic); - } - } - redraw (); -} - -boolean translateTraversal (int key_sym, PhKeyEvent_t phEvent) { - boolean translated = super.translateTraversal (key_sym, phEvent); - if (translated) return translated; - if (focusIndex == -1) return translated; - if (phEvent != null) { - switch (key_sym) { - case OS.Pk_Return: - Event event = new Event (); - event.text = ids [focusIndex]; - sendEvent (SWT.Selection, event); - break; - case OS.Pk_Tab: - boolean next = (phEvent.key_mods & OS.Pk_KM_Shift) == 0; - if (next) { - if (focusIndex < offsets.length - 1) { - focusIndex++; - redraw (); - } - } else { - if (focusIndex > 0) { - focusIndex--; - redraw (); - } - } - break; - } - } - return translated; -} - -int traversalCode (int key_sym, PhKeyEvent_t ke) { - if (offsets.length == 0) return 0; - int code = super.traversalCode (key_sym, ke); - if (key_sym == OS.Pk_Tab && ke != null) { - boolean next = (ke.key_mods & OS.Pk_KM_Shift) == 0; - if (next && focusIndex < offsets.length - 1) { - return code & ~SWT.TRAVERSE_TAB_NEXT; - } - if (!next && focusIndex > 0) { - return code & ~SWT.TRAVERSE_TAB_PREVIOUS; - } - } - return code; -} - -} |