LRESULT WM_GETDLGCODE(int /*long*/ wParam, int /*long*/ lParam) {
LRESULT result = super.WM_GETDLGCODE(wParam, lParam);
if (result != null) return result;
int index, count;
int /*long*/ code = 0;
if (OS.COMCTL32_MAJOR >= 6) {
LITEM item = new LITEM();
item.mask = OS.LIF_ITEMINDEX | OS.LIF_STATE;
item.stateMask = OS.LIS_FOCUSED;
index = 0;
while (OS.SendMessage(handle, OS.LM_GETITEM, 0, item) != 0) {
if ((item.state & OS.LIS_FOCUSED) != 0) {
index = item.iLink;
}
item.iLink++;
}
count = item.iLink;
code = callWindowProc(handle, OS.WM_GETDLGCODE, wParam, lParam);
} else {
index = focusIndex;
count = offsets.length;
}
if (count == 0) {
return new LRESULT(code | OS.DLGC_STATIC);
}
boolean next = OS.GetKeyState(OS.VK_SHIFT) >= 0;
if (next && index < count - 1) {
return new LRESULT(code | OS.DLGC_WANTTAB);
}
if (!next && index > 0) {
return new LRESULT(code | OS.DLGC_WANTTAB);
}
return result;
}
void enableWidget(boolean enabled) {
if (OS.COMCTL32_MAJOR >= 6) {
LITEM item = new LITEM();
item.mask = OS.LIF_ITEMINDEX | OS.LIF_STATE;
item.stateMask = OS.LIS_ENABLED;
item.state = enabled ? OS.LIS_ENABLED : 0;
while (OS.SendMessage(handle, OS.LM_SETITEM, 0, item) != 0) {
item.iLink++;
}
} else {
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();
}
/*
* Feature in Windows. For some reason, setting
* LIS_ENABLED state using LM_SETITEM causes the
* SysLink to become enabled. To be specific,
* calling IsWindowEnabled() returns true. The
* fix is disable the SysLink after LM_SETITEM.
*/
super.enableWidget(enabled);
}
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;
}