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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/gtk1x/org/eclipse/swt/widgets/Combo.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/gtk1x/org/eclipse/swt/widgets/Combo.java | 1077 |
1 files changed, 0 insertions, 1077 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk1x/org/eclipse/swt/widgets/Combo.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk1x/org/eclipse/swt/widgets/Combo.java deleted file mode 100644 index b192c92336..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/gtk1x/org/eclipse/swt/widgets/Combo.java +++ /dev/null @@ -1,1077 +0,0 @@ -package org.eclipse.swt.widgets; - -/* - * (c) Copyright IBM Corp. 2000, 2001. - * All Rights Reserved - */ - -import org.eclipse.swt.*; -import org.eclipse.swt.internal.*; -import org.eclipse.swt.internal.gtk.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.events.*; - -/** - * Instances of this class are controls that allow the user - * to choose an item from a list of items, or optionally - * enter a new value by typing it into an editable text - * field. Often, <code>Combo</code>s are used in the same place - * where a single selection <code>List</code> widget could - * be used but space is limited. A <code>Combo</code> takes - * less space than a <code>List</code> widget and shows - * similar information. - * <p> - * Note: Since <code>Combo</code>s can contain both a list - * and an editable text field, it is possible to confuse methods - * which access one versus the other (compare for example, - * <code>clearSelection()</code> and <code>deselectAll()</code>). - * The API documentation is careful to indicate either "the - * receiver's list" or the "the receiver's text field" to - * distinguish between the two cases. - * </p><p> - * Note that although this class is a subclass of <code>Composite</code>, - * it does not make sense to add children to it, or set a layout on it. - * </p> - * <dl> - * <dt><b>Styles:</b></dt> - * <dd>DROP_DOWN, READ_ONLY, SIMPLE</dd> - * <dt><b>Events:</b></dt> - * <dd>DefaultSelection, Modify, Selection</dd> - * </dl> - * <p> - * IMPORTANT: This class is <em>not</em> intended to be subclassed. - * </p> - * - * @see List - */ - -public class Combo extends Composite { - int padHandle, glist; - int textLimit = LIMIT; - public final static int LIMIT; - - /* - * These values can be different on different platforms. - * Therefore they are not initialized in the declaration - * to stop the compiler from inlining. - */ - static { - LIMIT = 0xFFFF; - } - -/** - * Constructs a new instance of this class given its parent - * and a style value describing its behavior and appearance. - * <p> - * The style value is either one of the style constants defined in - * class <code>SWT</code> which is applicable to instances of this - * class, or must be built by <em>bitwise OR</em>'ing together - * (that is, using the <code>int</code> "|" operator) two or more - * of those <code>SWT</code> style constants. The class description - * for all SWT widget classes should include a comment which - * describes the style constants which are applicable to the class. - * </p> - * - * @param parent a composite control which will be the parent of the new instance (cannot be null) - * @param style the style of control to construct - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> - * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> - * </ul> - * - * @see SWT - * @see Widget#checkSubclass - * @see Widget#getStyle - */ -public Combo (Composite parent, int style) { - super (parent, checkStyle (style)); -} - -/** - * Adds the argument to the end of the receiver's list. - * - * @param string the new item - * - * @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> - * @exception SWTError <ul> - * <li>ERROR_ITEM_NOT_ADDED - if the operation fails because of an operating system failure</li> - * </ul> - * - * @see #add(String,int) - */ -public void add (String string) { - checkWidget(); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - String [] items = getItems (); - String [] newItems = new String [items.length + 1]; - System.arraycopy (items, 0, newItems, 0, items.length); - newItems [items.length] = string; - setItems (newItems); -} - -/** - * Adds the argument to the receiver's list at the given - * zero-relative index. - * <p> - * Note: To add an item at the end of the list, use the - * result of calling <code>getItemCount()</code> as the - * index or use <code>add(String)</code>. - * </p> - * - * @param string the new item - * @param index the index for the item - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list (inclusive)</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> - * @exception SWTError <ul> - * <li>ERROR_ITEM_NOT_ADDED - if the operation fails because of an operating system failure</li> - * </ul> - * - * @see #add(String) - */ -public void add (String string, int index) { - checkWidget(); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - if (!(0 <= index && index <= getItemCount ())) { - error (SWT.ERROR_ITEM_NOT_ADDED); - } - String [] items = getItems (); - String [] newItems = new String [items.length + 1]; - System.arraycopy (items, 0, newItems, 0, items.length); - newItems [index] = string; - setItems (newItems); -} - -/** - * Adds the listener to the collection of listeners who will - * be notified when the receiver's text is modified, by sending - * it one of the messages defined in the <code>ModifyListener</code> - * interface. - * - * @param listener the listener which should be notified - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see ModifyListener - * @see #removeModifyListener - */ -public void addModifyListener (ModifyListener listener) { - checkWidget(); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.Modify, typedListener); -} - -/** - * Adds the listener to the collection of listeners who will - * be notified when the receiver's selection changes, by sending - * it one of the messages defined in the <code>SelectionListener</code> - * interface. - * <p> - * <code>widgetSelected</code> is called when the combo's list selection changes. - * <code>widgetDefaultSelected</code> is typically called when ENTER is pressed the combo's text area. - * </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); -} - -static int checkStyle (int style) { - /* - * Feature in Windows. It is not possible to create - * a combo box that has a border using Windows style - * bits. All combo boxes draw their own border and - * do not use the standard Windows border styles. - * Therefore, no matter what style bits are specified, - * clear the BORDER bits so that the SWT style will - * match the Windows widget. - * - * The Windows behavior is currently implemented on - * all platforms. - */ - style &= ~SWT.BORDER; - - /* - * Even though it is legal to create this widget - * with scroll bars, they serve no useful purpose - * because they do not automatically scroll the - * widget's client area. The fix is to clear - * the SWT style. - */ - style &= ~(SWT.H_SCROLL | SWT.V_SCROLL); - style = checkBits (style, SWT.DROP_DOWN, SWT.SIMPLE, 0, 0, 0, 0); - if ((style & SWT.SIMPLE) != 0) return style & ~SWT.READ_ONLY; - return style; -} - -/** - * Sets the selection in the receiver's text field to an empty - * selection starting just before the first character. If the - * text field is editable, this has the effect of placing the - * i-beam at the start of the text. - * <p> - * Note: To clear the selected items in the receiver's list, - * use <code>deselectAll()</code>. - * </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> - * - * @see #deselectAll - */ -public void clearSelection () { - checkWidget(); - GtkCombo combo = new GtkCombo (); - OS.memmove (combo, handle, GtkCombo.sizeof); - int position = OS.gtk_editable_get_position (combo.entry); - OS.gtk_editable_set_position (combo.entry, position); -} - -void createHandle (int index) { - state |= HANDLE; - eventBoxHandle = OS.gtk_event_box_new (); - if (eventBoxHandle == 0) error (SWT.ERROR_NO_HANDLES); - padHandle = OS.gtk_fixed_new (); - if (padHandle == 0) error (SWT.ERROR_NO_HANDLES); - handle = OS.gtk_combo_new (); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - fixedHandle = OS.gtk_fixed_new(); - if (fixedHandle == 0) error (SWT.ERROR_NO_HANDLES); -} - -void setHandleStyle() { - GtkCombo combo = new GtkCombo (); - OS.memmove (combo, handle, GtkCombo.sizeof); - boolean isEditable = (style & SWT.READ_ONLY) == 0; - OS.gtk_entry_set_editable (combo.entry, isEditable); -} - -void configure () { - _connectParent(); - OS.gtk_container_add(eventBoxHandle, padHandle); - OS.gtk_fixed_put (padHandle, fixedHandle, (short)0, (short)0); - OS.gtk_fixed_put (padHandle, handle, (short)0, (short)0); -} - -public Point computeSize (int wHint, int hHint, boolean changed) { - checkWidget (); - return _computeSize(wHint, hHint, changed); -} - -void showHandle() { - OS.gtk_widget_show(eventBoxHandle); - OS.gtk_widget_show(padHandle); - OS.gtk_widget_show(fixedHandle); - OS.gtk_widget_show(handle); - OS.gtk_widget_realize (handle); -} - -void deregister () { - super.deregister (); - WidgetTable.remove (padHandle); - GtkCombo combo = new GtkCombo (); - OS.memmove (combo, handle, GtkCombo.sizeof); - WidgetTable.remove (combo.entry); - WidgetTable.remove (combo.list); - WidgetTable.remove (combo.button); -} - -void hookEvents () { - // TO DO - expose, enter/exit, focus in/out - super.hookEvents (); - GtkCombo combo = new GtkCombo (); - OS.memmove (combo, handle, GtkCombo.sizeof); - // TO DO - fix multiple selection events for one user action - signal_connect (combo.list, "select_child", SWT.Selection, 3); - signal_connect_after (combo.entry, "changed", SWT.Modify, 2); - int mask = - OS.GDK_POINTER_MOTION_MASK | - OS.GDK_BUTTON_PRESS_MASK | OS.GDK_BUTTON_RELEASE_MASK | - OS.GDK_KEY_PRESS_MASK | OS.GDK_KEY_RELEASE_MASK; - int [] handles = new int [] {combo.entry, combo.list, combo.button}; - for (int i=0; i<handles.length; i++) { - int handle = handles [i]; - if (!OS.GTK_WIDGET_NO_WINDOW (handle)) { - OS.gtk_widget_add_events (handle, mask); - } - signal_connect_after (handle, "motion_notify_event", SWT.MouseMove, 3); - signal_connect_after (handle, "button_press_event", SWT.MouseDown, 3); - signal_connect_after (handle, "button_release_event", SWT.MouseUp, 3); - signal_connect_after (handle, "key_press_event", SWT.KeyDown, 3); - signal_connect_after (handle, "key_release_event", SWT.KeyUp, 3); - } -} - -int topHandle() { return eventBoxHandle; } -int parentingHandle() { return fixedHandle; } -boolean isMyHandle(int h) { - if (h==eventBoxHandle) return true; - if (h==padHandle) return true; - if (h==fixedHandle) return true; - if (h==handle) return true; - GtkCombo combo = new GtkCombo (); - OS.memmove (combo, handle, GtkCombo.sizeof); - if (h== combo.entry) return true; - if (h== combo.list) return true; - if (h== combo.button) return true; - return false; -} - -void _connectChild (int h) { - OS.gtk_fixed_put (fixedHandle, h, (short)0, (short)0); -} - -Point _getClientAreaSize () { - return UtilFuncs.getSize(fixedHandle); -} - -boolean _setSize(int width, int height) { - boolean differentExtent = UtilFuncs.setSize(eventBoxHandle, width,height); - UtilFuncs.setSize (fixedHandle, width,height); - UtilFuncs.setSize (handle, width,height); - return differentExtent; -} - -/** - * Deselects the item at the given zero-relative index in the receiver's - * list. If the item at the index was already deselected, it remains - * deselected. Indices that are out of range are ignored. - * - * @param index the index of the item to deselect - * - * @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 deselect (int index) { - checkWidget(); - setItems (getItems ()); -} - -/** - * Deselects all selected items in the receiver's list. - * <p> - * Note: To clear the selection in the receiver's text field, - * use <code>clearSelection()</code>. - * </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> - * - * @see #clearSelection - */ -public void deselectAll () { - checkWidget(); - setItems (getItems ()); -} - -/* - * FIXME -protected boolean hasFocus () { - return super.hasFocus(); -} -*/ - -/** - * Returns the item at the given, zero-relative index in the - * receiver's list. Throws an exception if the index is out - * of range. - * - * @param index the index of the item to return - * @return the item at the given index - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</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> - * @exception SWTError <ul> - * <li>ERROR_CANNOT_GET_ITEM - if the operation fails because of an operating system failure</li> - * </ul> - */ -public String getItem (int index) { - checkWidget(); - String [] items = getItems (); - if (!(0 <= index && index < items.length)) { - error (SWT.ERROR_CANNOT_GET_ITEM); - } - return items [index]; -} - -/** - * Returns the number of items contained in the receiver's list. - * - * @return the number of items - * - * @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> - * @exception SWTError <ul> - * <li>ERROR_CANNOT_GET_COUNT - if the operation fails because of an operating system failure</li> - * </ul> - */ -public int getItemCount () { - checkWidget(); - if (glist == 0) return 0; - return OS.g_list_length (glist); -} - -/** - * Returns the height of the area which would be used to - * display <em>one</em> of the items in the receiver's list. - * - * @return the height of one 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> - * @exception SWTError <ul> - * <li>ERROR_CANNOT_GET_ITEM_HEIGHT - if the operation fails because of an operating system failure</li> - * </ul> - */ -public int getItemHeight () { - checkWidget(); - /* FIXME */ - return 0; -} - -/** - * Returns an array of <code>String</code>s which are the items - * in the receiver's list. - * <p> - * Note: This is not the actual structure used by the receiver - * to maintain its list of items, so modifying the array will - * not affect the receiver. - * </p> - * - * @return the items in the receiver's list - * - * @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> - * @exception SWTError <ul> - * <li>ERROR_CANNOT_GET_ITEM - if the operation fails because of an operating system failure</li> - * </ul> - */ -public String [] getItems () { - checkWidget(); - if (glist == 0) return new String [0]; - int count = OS.g_list_length (glist); - String [] items = new String [count]; - for (int i=0; i<count; i++) { - int data = OS.g_list_nth_data (glist, i); - int length = OS.strlen (data); - byte [] buffer1 = new byte [length]; - OS.memmove (buffer1, data, length); - char [] buffer2 = Converter.mbcsToWcs (null, buffer1); - items [i] = new String (buffer2, 0, length); - } - return items; -} - -/** - * Returns a <code>Point</code> whose x coordinate is the start - * of the selection in the receiver's text field, and whose y - * coordinate is the end of the selection. The returned values - * are zero-relative. An "empty" selection as indicated by - * the the x and y coordinates having the same value. - * - * @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 (); - GtkCombo combo = new GtkCombo (); - OS.memmove (combo, handle, GtkCombo.sizeof); - GtkEditable editable = new GtkEditable(); - OS.memmove (editable, combo.entry, GtkEditable.sizeof); - return new Point (editable.selection_start_pos, editable.selection_end_pos); -} - -/** - * Returns the zero-relative index of the item which is currently - * selected in the receiver's list, or -1 if no item is selected. - * - * @return the index of the selected 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 int getSelectionIndex () { - checkWidget(); - //NOT RIGHT FOR EDITABLE - return indexOf (getText ()); -} - -/** - * Returns a string containing a copy of the contents of the - * receiver's text field. - * - * @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(); - GtkCombo combo = new GtkCombo (); - OS.memmove (combo, handle, GtkCombo.sizeof); - int address = OS.gtk_entry_get_text (combo.entry); - int length = OS.strlen (address); - byte [] buffer1 = new byte [length]; - OS.memmove (buffer1, address, length); - /* - * This code is intentionally commented. - * The GTK documentation explicitly states - * that this address should not be freed. - */ -// OS.g_free (address); - char [] buffer2 = Converter.mbcsToWcs (null, buffer1); - return new String (buffer2, 0, buffer2.length); -} - -String getText (int start, int stop) { - /* - * NOTE: The current implementation uses substring () - * which can reference a potentially large character - * array. - */ - return getText ().substring (start, stop - 1); -} - -/** - * Returns the height of the receivers's text field. - * - * @return the text height - * - * @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> - * @exception SWTError <ul> - * <li>ERROR_CANNOT_GET_ITEM_HEIGHT - if the operation fails because of an operating system failure</li> - * </ul> - */ -public int getTextHeight () { - checkWidget(); - /* A native approach, just measuring the entry: - * return UtilFuncs.getSize(_entryHandle).y; - * does not work - the entry is the same size as - * the whole combo. - */ - error (SWT.ERROR_CANNOT_GET_ITEM_HEIGHT); - return 0; -} - -/** - * Returns the maximum number of characters that the receiver's - * text field is capable of holding. If this has not been changed - * by <code>setTextLimit()</code>, it will be the constant - * <code>Combo.LIMIT</code>. - * - * @return the text limit - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public int getTextLimit () { - checkWidget(); - return textLimit; -} - -/** - * Searches the receiver's list starting at the first item - * (index 0) until an item is found that is equal to the - * argument, and returns the index of that item. If no item - * is found, returns -1. - * - * @param string the search item - * @return the index of the item - * - * @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 int indexOf (String string) { - checkWidget(); - return indexOf (string, 0); -} - -/** - * Searches the receiver's list starting at the given, - * zero-relative index until an item is found that is equal - * to the argument, and returns the index of that item. If - * no item is found or the starting index is out of range, - * returns -1. - * - * @param string the search item - * @return the index of the item - * - * @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 int indexOf (String string, int start) { - checkWidget(); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - String [] items = getItems (); - for (int i=start; i<items.length; i++) { - if (string.equals(items [i])) return i; - } - return -1; -} - -int processModify (int arg0, int arg1, int int2) { - sendEvent (SWT.Modify); - return 0; -} - -int processSelection (int int0, int int1, int int2) { - postEvent (SWT.Selection); - return 0; -} - -void register () { - super.register (); - WidgetTable.put (padHandle, this); - GtkCombo combo = new GtkCombo (); - OS.memmove (combo, handle, GtkCombo.sizeof); - WidgetTable.put (combo.entry, this); - WidgetTable.put (combo.list, this); - WidgetTable.put (combo.button, this); -} - -void releaseHandle () { - super.releaseHandle (); - int padHandle = 0; -} - -void releaseWidget () { - if (glist != 0) { - int count = OS.g_list_length (glist); - for (int i=0; i<count; i++) { - int data = OS.g_list_nth_data (glist, i); - if (data != 0) OS.g_free (data); - } - OS.g_list_free (glist); - } - glist = 0; - super.releaseWidget (); -} - -/** - * Removes the item from the receiver's list at the given - * zero-relative index. - * - * @param index the index for the item - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</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> - * @exception SWTError <ul> - * <li>ERROR_ITEM_NOT_REMOVED - if the operation fails because of an operating system failure</li> - * </ul> - */ -public void remove (int index) { - checkWidget(); - if (!(0 <= index && index < getItemCount ())) { - error (SWT.ERROR_ITEM_NOT_REMOVED); - } - String [] oldItems = getItems (); - String [] newItems = new String [oldItems.length - 1]; - System.arraycopy (oldItems, 0, newItems, 0, index); - System.arraycopy (oldItems, index + 1, newItems, index, oldItems.length - index - 1); - setItems (newItems); -} - -/** - * Removes the items from the receiver's list which are - * between the given zero-relative start and end - * indices (inclusive). - * - * @param start the start of the range - * @param end the end of the range - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_RANGE - if either the start or end are not between 0 and the number of elements in the list minus 1 (inclusive)</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> - * @exception SWTError <ul> - * <li>ERROR_ITEM_NOT_REMOVED - if the operation fails because of an operating system failure</li> - * </ul> - */ -public void remove (int start, int end) { - checkWidget(); - if (!(0 <= start && start <= end && end < getItemCount ())) { - error (SWT.ERROR_ITEM_NOT_REMOVED); - } - String [] oldItems = getItems (); - String [] newItems = new String [oldItems.length - (end - start + 1)]; - System.arraycopy (oldItems, 0, newItems, 0, start); - System.arraycopy (oldItems, end + 1, newItems, start, oldItems.length - end - 1); - setItems (newItems); -} - -/** - * Searches the receiver's list starting at the first item - * until an item is found that is equal to the argument, - * and removes that item from the list. - * - * @param string the item to remove - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * <li>ERROR_INVALID_ARGUMENT - if the string is not found in the list</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> - * @exception SWTError <ul> - * <li>ERROR_ITEM_NOT_REMOVED - if the operation fails because of an operating system failure</li> - * </ul> - */ -public void remove (String string) { - checkWidget(); - int index = indexOf (string, 0); - if (index != -1) remove (index); -} - -/** - * Removes all of the items from the receiver's list. - * <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 removeAll () { - checkWidget(); - setItems (new String [0]); -} - -/** - * Removes the listener from the collection of listeners who will - * be notified when the receiver's text is modified. - * - * @param listener the listener which should no longer be notified - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see ModifyListener - * @see #addModifyListener - */ -public void removeModifyListener (ModifyListener listener) { - checkWidget(); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.Modify, listener); -} - -/** - * Removes the listener from the collection of listeners who will - * be notified when the receiver's selection changes. - * - * @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); -} - -/** - * Selects the item at the given zero-relative index in the receiver's - * list. If the item at the index was already selected, it remains - * selected. Indices that are out of range are ignored. - * - * @param index the index of the item to select - * - * @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 select (int index) { - checkWidget(); - String [] items = getItems (); - if (index >= items.length) return; - String selectedText = items [index]; - GtkCombo combo = new GtkCombo (); - OS.memmove (combo, handle, GtkCombo.sizeof); - OS.gtk_signal_handler_block_by_data (combo.entry, SWT.Modify); - OS.gtk_signal_handler_block_by_data (combo.list, SWT.Selection); - OS.gtk_list_select_item (combo.list, index); - OS.gtk_entry_set_text (combo.entry, Converter.wcsToMbcs (null, selectedText, true)); - OS.gtk_signal_handler_unblock_by_data (combo.entry, SWT.Modify); - OS.gtk_signal_handler_unblock_by_data (combo.list, SWT.Selection); -} - -/** - * Sets the text of the item in the receiver's list at the given - * zero-relative index to the string argument. This is equivalent - * to <code>remove</code>'ing the old item at the index, and then - * <code>add</code>'ing the new item at that index. - * - * @param index the index for the item - * @param string the new text for the item - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</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> - * @exception SWTError <ul> - * <li>ERROR_ITEM_NOT_REMOVED - if the remove operation fails because of an operating system failure</li> - * <li>ERROR_ITEM_NOT_ADDED - if the add operation fails because of an operating system failure</li> - * </ul> - */ -public void setItem (int index, String string) { - checkWidget(); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - if (!(0 <= index && index <= getItemCount ())) { - error (SWT.ERROR_INVALID_ARGUMENT); - } - String [] items = getItems (); - items [index] = string; - setItems (items); -} - -/** - * Sets the receiver's list to be the given array of items. - * - * @param items the array of items - * - * @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> - * @exception SWTError <ul> - * <li>ERROR_ITEM_NOT_ADDED - if the operation fails because of an operating system failure</li> - * </ul> - */ -public void setItems (String [] items) { - checkWidget(); - if (items == null) error (SWT.ERROR_NULL_ARGUMENT); - GtkCombo combo = new GtkCombo (); - OS.memmove (combo, handle, GtkCombo.sizeof); - if (items.length == 0) { - OS.gtk_list_clear_items (combo.list, 0, -1); - //LEAK - glist = 0; - } else { - int new_glist = 0; - for (int i=0; i<items.length; i++) { - String string = items [i]; - // FIXME leaked strings and glist - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - byte [] buffer = Converter.wcsToMbcs (null, string, true); - int data = OS.g_malloc (buffer.length); - OS.memmove (data, buffer, buffer.length); - new_glist = OS.g_list_append (new_glist, data); - } - OS.gtk_signal_handler_block_by_data (combo.entry, SWT.Modify); - OS.gtk_signal_handler_block_by_data (combo.list, SWT.Selection); - OS.gtk_combo_set_popdown_strings (handle, new_glist); - OS.gtk_signal_handler_unblock_by_data (combo.entry, SWT.Modify); - OS.gtk_signal_handler_unblock_by_data (combo.list, SWT.Selection); - if (glist != 0) { - int count = OS.g_list_length (glist); - for (int i=0; i<count; i++) { - int data = OS.g_list_nth_data (glist, i); - if (data != 0) OS.g_free (data); - } - OS.g_list_free (glist); - } - glist = new_glist; - } - OS.gtk_signal_handler_block_by_data (combo.entry, SWT.Modify); - OS.gtk_editable_delete_text (combo.entry, 0, -1); - OS.gtk_signal_handler_unblock_by_data (combo.entry, SWT.Modify); -} - -/** - * Sets the selection in the receiver's text field to the - * range specified by the argument whose x coordinate is the - * start of the selection and whose y coordinate is the end - * of the selection. - * - * @param a point representing the new selection start and end - * - * @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); - GtkCombo gtkCombo = new GtkCombo (); - OS.memmove (gtkCombo, handle, GtkCombo.sizeof); - int entry = gtkCombo.entry; - OS.gtk_editable_set_position (entry, selection.x); - OS.gtk_editable_select_region (entry, selection.x, selection.y); -} - -protected boolean setTabGroupFocus () { - return setFocus (); -} - -/** - * Sets the contents of the receiver's text field to the - * given string. - * <p> - * Note: The text field in a <code>Combo</code> is typically - * only capable of displaying a single line of text. Thus, - * setting the text to a string containing line breaks or - * other special characters will probably cause it to - * display incorrectly. - * </p> - * - * @param text the new text - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setText (String string) { - checkWidget(); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - GtkCombo gtkCombo = new GtkCombo (); - OS.memmove (gtkCombo, handle, GtkCombo.sizeof); - int entry = gtkCombo.entry; - OS.gtk_editable_delete_text (entry, 0, -1); - int [] position = new int [1]; - byte [] buffer = Converter.wcsToMbcs (null, string); - OS.gtk_editable_insert_text (entry, buffer, buffer.length, position); - OS.gtk_editable_set_position (entry, 0); -} - -/** - * Sets the maximum number of characters that the receiver's - * text field is capable of holding to be the argument. - * - * @param limit new text limit - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_CANNOT_BE_ZERO - if the limit is zero</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setTextLimit (int limit) { - checkWidget(); - if (limit == 0) error (SWT.ERROR_CANNOT_BE_ZERO); - this.textLimit = (short) limit; - GtkCombo combo = new GtkCombo (); - OS.memmove (combo, handle, GtkCombo.sizeof); - OS.gtk_entry_set_max_length (combo.entry, (short) limit); -} - -} |