How to adjust the size of a CDockablePane? - c++

Question

I am writing a SDI application on Visual Studio 2012. The MFC Wizard generated two CDockablePane-derived objects. The right-side CPropertiesWnd (CDockablePane-derived) object is named m_wndProperties. I embed in m_wndProperties a CPropertySheet object with a CPageNone (CPropertyPage-derived) object captioned "HELP" like this (I use the CPropertySheet class directly). However, the real size of the CPropertySheet object is bigger.
I have tried to adjust the size of the dialog related to the CPageNone object (named m_pageNone) in the Dialog Editor. This has no effect. In the MainFrm.cpp, the only lines relating to m_wndProperties I can find are:
int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
.....
m_wndProperties.EnableDocking(CBRS_ALIGN_RIGHT);
DockPane(&m_wndProperties);
.....
}
.....
BOOL CMainFrame::CreateDockingWindows()
{
.....
CString strPropertiesWnd;
bNameValid = strPropertiesWnd.LoadString(IDS_PROPERTIES_WND);
ASSERT(bNameValid);
if (!m_wndProperties.Create(strPropertiesWnd, this, CRect(0, 0, 200, 200), TRUE, ID_VIEW_PROPERTIESWND, WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | CBRS_RIGHT | CBRS_FLOAT_MULTI))
{
TRACE0("無法建立 [屬性] 視窗\n");
return FALSE; // 無法建立
}
.....
}
.....
void CMainFrame::SetDockingWindowIcons(BOOL bHiColorIcons)
{
.....
HICON hPropertiesBarIcon = (HICON) ::LoadImage(::AfxGetResourceHandle(), MAKEINTRESOURCE(bHiColorIcons ? IDI_PROPERTIES_WND_HC : IDI_PROPERTIES_WND), IMAGE_ICON, ::GetSystemMetrics(SM_CXSMICON), ::GetSystemMetrics(SM_CYSMICON), 0);
m_wndProperties.SetIcon(hPropertiesBarIcon, FALSE);
}
And here is the AdjustLayout() in my PropertiesWnd.cpp:
void CPropertiesWnd::AdjustLayout()
{
if (GetSafeHwnd () == NULL || (AfxGetMainWnd() != NULL && AfxGetMainWnd()->IsIconic()))
{
return;
}
CRect rectClient;
GetClientRect(rectClient);
m_PropertySheet.SetWindowPos (NULL, rectClient.left, rectClient.top, rectClient.Width (), rectClient.Height (), SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOSIZE);
}
And in my PageNone.cpp, I only have three functions: the default constructor, the default destructor and DoDataExchange.
My question is how can I adjust the size of m_wndProperties or m_pageNone to fit each other? Thank you very much.

Answer 1

I have got this working in a different way (the code is too large to give in this answer, but the main points are:
a) don't do anything in CMainFrame::OnCreate()
b) in CMainFrame::CreateDockingWindows(), after m_wndProperties.Create(), add the following code
m_PropertySheet.Create(...);
CRect rc;
m_PropertySheet.GetRect(&rc);
m_wndProperties.SetMinSize(rc.Width(), rc,Height());
m_wndProperties.EnableDocking(CBRS_ALIGN_RIGHT);
DockPane(&m_wndProperties);
ShowPane(&m_wndProperties, TRUE, FALSE, TRUE);

Answer 2

Your code in AdjustLayout() is plausible right, but I think during startup it will be called too early. Because the default size will be read from CWinAppEx::LoadState(), which always read the previous size from the Registry. It can probably disabled with CWinAppEx::EnableLoadWindowPlacement(FALSE). not tested.
Post a User-Defined Message at the end of InitInstance(). Or just try with a timer in CMainFrame::Create() .. SetTimer(123,2000,NULL);
void CMainFrame::OnTimer(UINT_PTR nIDEvent)
{
if (nIDEvent == 123)
{
m_wndProperties.SetWindowPos(this, 0, 0, 400, 200, SWP_NOZORDER | SWP_FRAMECHANGED);
RecalcLayout();
KillTimer(123);
}
CFrameWndEx::OnTimer(nIDEvent);
}