//
/// Overrides TFrameWindows virtual function. Sets the client window to the
/// specified window. Users are responsible for destroying the old client window if
/// they want to remove it.
//
/// Handle SetClientWindow() here to manage fixing up the layout metrics of
/// all the children before & after the client is changed.
//
TWindow*
TDecoratedFrame::SetClientWindow(TWindow* clientWnd)
{
TLayoutMetrics metrics;
GetChildLayoutMetrics(*ClientWnd, metrics);
if (!clientWnd)
clientWnd = new TWindow(this, _T("\007")); // create dummy placeholder
clientWnd->SetParent(this);
SetChildLayoutMetrics(*clientWnd, metrics);
TWindow* oldWnd = GetClientWindow();
// Make sure that all child metrics that were based on the old client window
// get updated to the new client
//
TWindow* first = GetFirstChild();
if (first) {
TWindow* child = first;
do {
if (GetChildLayoutMetrics(*child, metrics)) {
if (metrics.X.RelWin == oldWnd)
metrics.X.RelWin = clientWnd;
if (metrics.Y.RelWin == oldWnd)
metrics.Y.RelWin = clientWnd;
if (metrics.Width.RelWin == oldWnd)
metrics.Width.RelWin = clientWnd;
if (metrics.Height.RelWin == oldWnd)
metrics.Height.RelWin = clientWnd;
SetChildLayoutMetrics(*child, metrics);
}
child = child->Next();
} while (child != first);
}
// Now let the TFrameWindow set the client. Then delete the old client if it
// was our temporary place holder. Set a flag while the client is being set
// so that RemoveChild() below knows that we are taking care of things.
//
SettingClient = true;
oldWnd = TFrameWindow::SetClientWindow(clientWnd);
SettingClient = false;
if (oldWnd->GetCaption() && oldWnd->GetCaption()[0] == 007) {
oldWnd->Destroy();
delete oldWnd;
oldWnd = 0;
}
// Relayout the children to get the new client sized right
//
Layout();
return oldWnd;
}
//
/// Applies the specified 'action' function to each TPropertyPage child of the
/// sheet.
/// \note The logic here traverses the TPropertySheet's ChildList. Therefore
/// we will miss any page that does not have an associated TPropertyPage
/// inserted in the sheet's ChildList.
void
TPropertySheet::ForEachPage(TActionPageFunc action, void* paramList)
{
if (GetLastChild()) {
TWindow* curChild;
TWindow* nextChild = GetLastChild()->Next();
TPropertyPage* curPage;
do {
curChild = nextChild;
nextChild = nextChild->Next();
curPage = TYPESAFE_DOWNCAST(curChild, TPropertyPage);
if (curPage)
action(curPage, paramList);
} while (curChild != GetLastChild() && GetLastChild() != 0);
}
}
//
/// Applies the specified 'test' function to each 'TPropertyPage' of the sheet and
/// returns the first page which causes the 'test' function to return true. Returns
/// '0' if no page meets the condition.
//
TPropertyPage*
TPropertySheet::FirstPageThat(TCondPageFunc test, void* paramList)
{
if (GetLastChild()) {
TWindow* curChild;
TWindow* nextChild = GetLastChild()->Next();
TPropertyPage* curPage;
do {
curChild = nextChild;
nextChild = nextChild->Next();
curPage = TYPESAFE_DOWNCAST(curChild, TPropertyPage);
if (curPage) {
if (test(curPage, paramList))
return curPage;
}
} while (curChild != GetLastChild() && GetLastChild() != 0);
}
return 0;
}
//
/// Give the decorations an opportunity to do pre-processing. Don't bother
/// checking the client window since it is typically in the focus chain and
/// will be given an opportunity to do pre-processing
//
bool
TDecoratedFrame::PreProcessMsg(MSG& msg)
{
TWindow* firstChild = GetFirstChild();
if (firstChild) {
TWindow* child = firstChild;
do {
if (child != ClientWnd && child->GetHandle() &&
(child->GetWindowLong(GWL_STYLE) & WS_VISIBLE) &&
child->PreProcessMsg(msg))
return true;
child = child->Next();
} while (child != firstChild);
}
return TFrameWindow::PreProcessMsg(msg);
}
