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comparison dwt/widgets/Combo.d @ 239:43b41c7fe84a

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work on allow null strings and arrays
author Frank Benoit <benoit@tionex.de>
date Fri, 20 Jun 2008 16:27:36 +0200
parents e2affbeb686d
children fd9c62a2998e
comparison
equal deleted inserted replaced
238:efe25e7c8a96 239:43b41c7fe84a
172 /** 172 /**
173 * Adds the argument to the end of the receiver's list. 173 * Adds the argument to the end of the receiver's list.
174 * 174 *
175 * @param string the new item 175 * @param string the new item
176 * 176 *
177 * @exception IllegalArgumentException <ul>
178 * <li>ERROR_NULL_ARGUMENT - if the string is null</li>
179 * </ul>
180 * @exception DWTException <ul> 177 * @exception DWTException <ul>
181 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> 178 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
182 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> 179 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
183 * </ul> 180 * </ul>
184 * 181 *
185 * @see #add(String,int) 182 * @see #add(String,int)
186 */ 183 */
187 public void add (String string) { 184 public void add (String string) {
188 checkWidget (); 185 checkWidget ();
189 if (string is null) error (DWT.ERROR_NULL_ARGUMENT); 186 // DWT extension: allow null string
187 //if (string is null) error (DWT.ERROR_NULL_ARGUMENT);
190 auto buffer = StrToTCHARs( getCodePage(), string, true ); 188 auto buffer = StrToTCHARs( getCodePage(), string, true );
191 int result = OS.SendMessage (handle, OS.CB_ADDSTRING, 0, buffer.ptr ); 189 int result = OS.SendMessage (handle, OS.CB_ADDSTRING, 0, buffer.ptr );
192 if (result is OS.CB_ERR) error (DWT.ERROR_ITEM_NOT_ADDED); 190 if (result is OS.CB_ERR) error (DWT.ERROR_ITEM_NOT_ADDED);
193 if (result is OS.CB_ERRSPACE) error (DWT.ERROR_ITEM_NOT_ADDED); 191 if (result is OS.CB_ERRSPACE) error (DWT.ERROR_ITEM_NOT_ADDED);
194 if ((style & DWT.H_SCROLL) !is 0) setScrollWidth (buffer, true); 192 if ((style & DWT.H_SCROLL) !is 0) setScrollWidth (buffer, true);
205 * 203 *
206 * @param string the new item 204 * @param string the new item
207 * @param index the index for the item 205 * @param index the index for the item
208 * 206 *
209 * @exception IllegalArgumentException <ul> 207 * @exception IllegalArgumentException <ul>
210 * <li>ERROR_NULL_ARGUMENT - if the string is null</li>
211 * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list (inclusive)</li> 208 * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list (inclusive)</li>
212 * </ul> 209 * </ul>
213 * @exception DWTException <ul> 210 * @exception DWTException <ul>
214 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> 211 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
215 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> 212 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
217 * 214 *
218 * @see #add(String) 215 * @see #add(String)
219 */ 216 */
220 public void add (String string, int index) { 217 public void add (String string, int index) {
221 checkWidget (); 218 checkWidget ();
222 if (string is null) error (DWT.ERROR_NULL_ARGUMENT); 219 // DWT extension: allow null string
220 //if (string is null) error (DWT.ERROR_NULL_ARGUMENT);
223 int count = OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0); 221 int count = OS.SendMessage (handle, OS.CB_GETCOUNT, 0, 0);
224 if (!(0 <= index && index <= count)) { 222 if (!(0 <= index && index <= count)) {
225 error (DWT.ERROR_INVALID_RANGE); 223 error (DWT.ERROR_INVALID_RANGE);
226 } 224 }
227 auto buffer = StrToTCHARs( getCodePage(), string, true ); 225 auto buffer = StrToTCHARs( getCodePage(), string, true );
977 * is found, returns -1. 975 * is found, returns -1.
978 * 976 *
979 * @param string the search item 977 * @param string the search item
980 * @return the index of the item 978 * @return the index of the item
981 * 979 *
982 * @exception IllegalArgumentException <ul>
983 * <li>ERROR_NULL_ARGUMENT - if the string is null</li>
984 * </ul>
985 * @exception DWTException <ul> 980 * @exception DWTException <ul>
986 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> 981 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
987 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> 982 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
988 * </ul> 983 * </ul>
989 */ 984 */
1000 * 995 *
1001 * @param string the search item 996 * @param string the search item
1002 * @param start the zero-relative index at which to begin the search 997 * @param start the zero-relative index at which to begin the search
1003 * @return the index of the item 998 * @return the index of the item
1004 * 999 *
1005 * @exception IllegalArgumentException <ul>
1006 * <li>ERROR_NULL_ARGUMENT - if the string is null</li>
1007 * </ul>
1008 * @exception DWTException <ul> 1000 * @exception DWTException <ul>
1009 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> 1001 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
1010 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> 1002 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
1011 * </ul> 1003 * </ul>
1012 */ 1004 */
1013 public int indexOf (String string, int start) { 1005 public int indexOf (String string, int start) {
1014 checkWidget (); 1006 checkWidget ();
1015 if (string is null) error (DWT.ERROR_NULL_ARGUMENT); 1007 // DWT externsion: allow null string
1008 //if (string is null) error (DWT.ERROR_NULL_ARGUMENT);
1016 1009
1017 /* 1010 /*
1018 * Bug in Windows. For some reason, CB_FINDSTRINGEXACT 1011 * Bug in Windows. For some reason, CB_FINDSTRINGEXACT
1019 * will not find empty strings even though it is legal 1012 * will not find empty strings even though it is legal
1020 * to insert an empty string into a combo. The fix is 1013 * to insert an empty string into a combo. The fix is
1021 * to search the combo, an item at a time. 1014 * to search the combo, an item at a time.
1022 */ 1015 */
1023 if (string.length is 0) { 1016 if (string.length is 0) {
1024 int count = getItemCount (); 1017 int count = getItemCount ();
1025 for (int i=start; i<count; i++) { 1018 for (int i=start; i<count; i++) {
1026 if (string==/*eq*/getItem (i)) return i; 1019 if (string.equals (getItem (i))) return i;
1027 } 1020 }
1028 return -1; 1021 return -1;
1029 } 1022 }
1030 1023
1031 /* Use CB_FINDSTRINGEXACT to search for the item */ 1024 /* Use CB_FINDSTRINGEXACT to search for the item */
1223 * and removes that item from the list. 1216 * and removes that item from the list.
1224 * 1217 *
1225 * @param string the item to remove 1218 * @param string the item to remove
1226 * 1219 *
1227 * @exception IllegalArgumentException <ul> 1220 * @exception IllegalArgumentException <ul>
1228 * <li>ERROR_NULL_ARGUMENT - if the string is null</li>
1229 * <li>ERROR_INVALID_ARGUMENT - if the string is not found in the list</li> 1221 * <li>ERROR_INVALID_ARGUMENT - if the string is not found in the list</li>
1230 * </ul> 1222 * </ul>
1231 * @exception DWTException <ul> 1223 * @exception DWTException <ul>
1232 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> 1224 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
1233 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> 1225 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
1234 * </ul> 1226 * </ul>
1235 */ 1227 */
1236 public void remove (String string) { 1228 public void remove (String string) {
1237 checkWidget (); 1229 checkWidget ();
1238 if (string is null) error (DWT.ERROR_NULL_ARGUMENT); 1230 // DWT extension: allow null string
1231 //if (string is null) error (DWT.ERROR_NULL_ARGUMENT);
1239 int index = indexOf (string, 0); 1232 int index = indexOf (string, 0);
1240 if (index is -1) error (DWT.ERROR_INVALID_ARGUMENT); 1233 if (index is -1) error (DWT.ERROR_INVALID_ARGUMENT);
1241 remove (index); 1234 remove (index);
1242 } 1235 }
1243 1236
1528 * @param index the index for the item 1521 * @param index the index for the item
1529 * @param string the new text for the item 1522 * @param string the new text for the item
1530 * 1523 *
1531 * @exception IllegalArgumentException <ul> 1524 * @exception IllegalArgumentException <ul>
1532 * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> 1525 * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li>
1533 * <li>ERROR_NULL_ARGUMENT - if the string is null</li>
1534 * </ul> 1526 * </ul>
1535 * @exception DWTException <ul> 1527 * @exception DWTException <ul>
1536 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> 1528 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
1537 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> 1529 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
1538 * </ul> 1530 * </ul>
1539 */ 1531 */
1540 public void setItem (int index, String string) { 1532 public void setItem (int index, String string) {
1541 checkWidget (); 1533 checkWidget ();
1542 if (string is null) error (DWT.ERROR_NULL_ARGUMENT); 1534 // DWT extension: allow null string
1535 //if (string is null) error (DWT.ERROR_NULL_ARGUMENT);
1543 int selection = getSelectionIndex (); 1536 int selection = getSelectionIndex ();
1544 remove (index, false); 1537 remove (index, false);
1545 if (isDisposed ()) return; 1538 if (isDisposed ()) return;
1546 add (string, index); 1539 add (string, index);
1547 if (selection !is -1) select (selection); 1540 if (selection !is -1) select (selection);
1551 * Sets the receiver's list to be the given array of items. 1544 * Sets the receiver's list to be the given array of items.
1552 * 1545 *
1553 * @param items the array of items 1546 * @param items the array of items
1554 * 1547 *
1555 * @exception IllegalArgumentException <ul> 1548 * @exception IllegalArgumentException <ul>
1556 * <li>ERROR_NULL_ARGUMENT - if the items array is null</li>
1557 * <li>ERROR_INVALID_ARGUMENT - if an item in the items array is null</li> 1549 * <li>ERROR_INVALID_ARGUMENT - if an item in the items array is null</li>
1558 * </ul> 1550 * </ul>
1559 * @exception DWTException <ul> 1551 * @exception DWTException <ul>
1560 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> 1552 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
1561 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> 1553 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
1562 * </ul> 1554 * </ul>
1563 */ 1555 */
1564 public void setItems (String [] items) { 1556 public void setItems (String [] items) {
1565 checkWidget (); 1557 checkWidget ();
1566 if (items is null) error (DWT.ERROR_NULL_ARGUMENT); 1558 // DWT extension: allow null string
1559 //if (items is null) error (DWT.ERROR_NULL_ARGUMENT);
1567 for (int i=0; i<items.length; i++) { 1560 for (int i=0; i<items.length; i++) {
1568 if (items [i] is null) error (DWT.ERROR_INVALID_ARGUMENT); 1561 if (items [i] is null) error (DWT.ERROR_INVALID_ARGUMENT);
1569 } 1562 }
1570 RECT rect; 1563 RECT rect;
1571 HDC hDC; 1564 HDC hDC;
1802 * display incorrectly. 1795 * display incorrectly.
1803 * </p> 1796 * </p>
1804 * 1797 *
1805 * @param string the new text 1798 * @param string the new text
1806 * 1799 *
1807 * @exception IllegalArgumentException <ul>
1808 * <li>ERROR_NULL_ARGUMENT - if the string is null</li>
1809 * </ul>
1810 * @exception DWTException <ul> 1800 * @exception DWTException <ul>
1811 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> 1801 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
1812 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> 1802 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
1813 * </ul> 1803 * </ul>
1814 */ 1804 */
1815 public void setText (String string) { 1805 public void setText (String string) {
1816 checkWidget (); 1806 checkWidget ();
1817 if (string is null) error (DWT.ERROR_NULL_ARGUMENT); 1807 // DWT externsion: allow null string
1808 //if (string is null) error (DWT.ERROR_NULL_ARGUMENT);
1818 if ((style & DWT.READ_ONLY) !is 0) { 1809 if ((style & DWT.READ_ONLY) !is 0) {
1819 int index = indexOf (string); 1810 int index = indexOf (string);
1820 if (index !is -1) select (index); 1811 if (index !is -1) select (index);
1821 return; 1812 return;
1822 } 1813 }