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);
}
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;
if (OS.COMCTL32_MAJOR >= 6) {
int /*long*/ hDC = OS.GetDC(handle);
int /*long*/ newFont = OS.SendMessage(handle, OS.WM_GETFONT, 0, 0);
int /*long*/ oldFont = OS.SelectObject(hDC, newFont);
if (text.length() > 0) {
TCHAR buffer = new TCHAR(getCodePage(), parse(text), false);
RECT rect = new RECT();
int flags = OS.DT_CALCRECT | OS.DT_NOPREFIX;
if (wHint != SWT.DEFAULT) {
flags |= OS.DT_WORDBREAK;
rect.right = wHint;
}
OS.DrawText(hDC, buffer, buffer.length(), rect, flags);
width = rect.right - rect.left;
height = rect.bottom;
} else {
TEXTMETRIC lptm = OS.IsUnicode ? (TEXTMETRIC) new TEXTMETRICW() : new TEXTMETRICA();
OS.GetTextMetrics(hDC, lptm);
width = 0;
height = lptm.tmHeight;
}
if (newFont != 0) OS.SelectObject(hDC, oldFont);
OS.ReleaseDC(handle, hDC);
} else {
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);
}
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;
}
int /*long*/ callWindowProc(
int /*long*/ hwnd, int msg, int /*long*/ wParam, int /*long*/ lParam) {
if (handle == 0) return 0;
if (LinkProc != 0) {
/*
* Feature in Windows. By convention, native Windows controls
* check for a non-NULL wParam, assume that it is an HDC and
* paint using that device. The SysLink control does not.
* The fix is to check for an HDC and use WM_PRINTCLIENT.
*/
switch (msg) {
case OS.WM_PAINT:
if (wParam != 0) {
OS.SendMessage(hwnd, OS.WM_PRINTCLIENT, wParam, 0);
return 0;
}
break;
}
return OS.CallWindowProc(LinkProc, hwnd, msg, wParam, lParam);
}
return OS.DefWindowProc(hwnd, msg, wParam, lParam);
}
