@Override
boolean mnemonicMatch(char key) {
char uckey = Character.toUpperCase(key);
String parsedText = layout.getText();
for (int i = 0; i < mnemonics.length - 1; i++) {
if (mnemonics[i] != -1) {
char mnemonic = parsedText.charAt(mnemonics[i]);
if (uckey == Character.toUpperCase(mnemonic)) {
return true;
}
}
}
return false;
}
@Override
boolean mnemonicHit(char key) {
char uckey = Character.toUpperCase(key);
String parsedText = layout.getText();
for (int i = 0; i < mnemonics.length - 1; i++) {
if (mnemonics[i] != -1) {
char mnemonic = parsedText.charAt(mnemonics[i]);
if (uckey == Character.toUpperCase(mnemonic)) {
if (!setFocus()) return false;
focusIndex = i;
redraw();
return true;
}
}
}
return false;
}
/*
* Return the lowercase of the first non-'&' character following
* an '&' character in the given string. If there are no '&'
* characters in the given string, return '\0'.
*/
char _findMnemonic(String string) {
if (string == null) return '\0';
int index = 0;
int length = string.length();
do {
while (index < length && string.charAt(index) != '&') index++;
if (++index >= length) return '\0';
if (string.charAt(index) != '&') return Character.toLowerCase(string.charAt(index));
index++;
} while (index < length);
return '\0';
}
boolean mnemonicHit(char key) {
if (mnemonics != null) {
char uckey = Character.toUpperCase(key);
String parsedText = parse(text);
for (int i = 0; i < mnemonics.length - 1; i++) {
if (mnemonics[i] != -1) {
char mnemonic = parsedText.charAt(mnemonics[i]);
if (uckey == Character.toUpperCase(mnemonic)) {
if (!setFocus()) return false;
if (OS.COMCTL32_MAJOR >= 6) {
int bits = OS.GetWindowLong(handle, OS.GWL_STYLE);
LITEM item = new LITEM();
item.mask = OS.LIF_ITEMINDEX | OS.LIF_STATE;
item.stateMask = OS.LIS_FOCUSED;
while (item.iLink < mnemonics.length) {
if (item.iLink != i) OS.SendMessage(handle, OS.LM_SETITEM, 0, item);
item.iLink++;
}
item.iLink = i;
item.state = OS.LIS_FOCUSED;
OS.SendMessage(handle, OS.LM_SETITEM, 0, item);
/* Feature in Windows. For some reason, setting the focus to
* any item but first causes the control to clear the WS_TABSTOP
* bit. The fix is always to reset the bit.
*/
OS.SetWindowLong(handle, OS.GWL_STYLE, bits);
} else {
focusIndex = i;
redraw();
}
return true;
}
}
}
}
return false;
}
void onMnemonic(TraverseEvent event) {
char mnemonic = _findMnemonic(text);
if (mnemonic == '\0') return;
if (Character.toLowerCase(event.character) != mnemonic) return;
Composite control = this.getParent();
while (control != null) {
Control[] children = control.getChildren();
int index = 0;
while (index < children.length) {
if (children[index] == this) break;
index++;
}
index++;
if (index < children.length) {
if (children[index].setFocus()) {
event.doit = true;
event.detail = SWT.TRAVERSE_NONE;
}
}
control = control.getParent();
}
}
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, Math.max(tagStart, linkStart), length, 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();
}