void wxDialog::Init()
{
- m_oldFocus = (wxWindow *)NULL;
m_isShown = false;
m_modalData = NULL;
- m_endModalCalled = false;
#if wxUSE_TOOLBAR && defined(__POCKETPC__)
m_dialogToolBar = NULL;
#endif
+ m_hGripper = 0;
}
bool wxDialog::Create(wxWindow *parent,
{
SetExtraStyle(GetExtraStyle() | wxTOPLEVEL_EX_DIALOG);
- // save focus before doing anything which can potentially change it
- m_oldFocus = FindFocus();
-
// All dialogs should really have this style
style |= wxTAB_TRAVERSAL;
CreateToolBar();
#endif
+ if ( HasFlag(wxRESIZE_BORDER) )
+ {
+ CreateGripper();
+
+ Connect(wxEVT_CREATE,
+ wxWindowCreateEventHandler(wxDialog::OnWindowCreate));
+ }
+
return true;
}
wxDialog::~wxDialog()
{
- m_isBeingDeleted = true;
-
// this will also reenable all the other windows for a modal dialog
Show(false);
+
+ DestroyGripper();
}
// ----------------------------------------------------------------------------
if ( show )
{
- // dialogs don't get WM_SIZE message after creation unlike most (all?)
- // other windows and so could start their life non laid out correctly
- // if we didn't call Layout() from here
+ // dialogs don't get WM_SIZE message from ::ShowWindow() for some
+ // reason so generate it ourselves for consistency with frames and
+ // dialogs in other ports
//
// NB: normally we should call it just the first time but doing it
// every time is simpler than keeping a flag
- Layout();
+ const wxSize size = GetClientSize();
+ ::SendMessage(GetHwnd(), WM_SIZE,
+ SIZE_RESTORED, MAKELPARAM(size.x, size.y));
}
return true;
// show dialog modally
int wxDialog::ShowModal()
{
- wxASSERT_MSG( !IsModal(), _T("wxDialog::ShowModal() reentered?") );
-
- m_endModalCalled = false;
+ wxASSERT_MSG( !IsModal(), _T("ShowModal() can't be called twice") );
Show();
// EndModal may have been called from InitDialog handler (called from
- // inside Show()), which would cause an infinite loop if we didn't take it
- // into account
- if ( !m_endModalCalled )
+ // inside Show()) and hidden the dialog back again
+ if ( IsShown() )
{
- // modal dialog needs a parent window, so try to find one
- wxWindow *parent = GetParent();
- if ( !parent )
- {
- parent = FindSuitableParent();
- }
-
- // remember where the focus was
- wxWindow *oldFocus = m_oldFocus;
- if ( !oldFocus )
- {
- // VZ: do we really want to do this?
- oldFocus = parent;
- }
-
- // We have to remember the HWND because we need to check
- // the HWND still exists (oldFocus can be garbage when the dialog
- // exits, if it has been destroyed)
- HWND hwndOldFocus = oldFocus ? GetHwndOf(oldFocus) : NULL;
-
-
// enter and run the modal loop
- {
- wxDialogModalDataTiedPtr modalData(&m_modalData,
- new wxDialogModalData(this));
- modalData->RunLoop();
- }
-
-
- // and restore focus
- // Note that this code MUST NOT access the dialog object's data
- // in case the object has been deleted (which will be the case
- // for a modal dialog that has been destroyed before calling EndModal).
- if ( oldFocus && (oldFocus != this) && ::IsWindow(hwndOldFocus))
- {
- // This is likely to prove that the object still exists
- if (wxFindWinFromHandle((WXHWND) hwndOldFocus) == oldFocus)
- oldFocus->SetFocus();
- }
+ wxDialogModalDataTiedPtr modalData(&m_modalData,
+ new wxDialogModalData(this));
+ modalData->RunLoop();
}
return GetReturnCode();
{
wxASSERT_MSG( IsModal(), _T("EndModal() called for non modal dialog") );
- m_endModalCalled = true;
SetReturnCode(retCode);
Hide();
}
+// ----------------------------------------------------------------------------
+// wxDialog gripper handling
+// ----------------------------------------------------------------------------
+
+void wxDialog::SetWindowStyleFlag(long style)
+{
+ wxDialogBase::SetWindowStyleFlag(style);
+
+ if ( HasFlag(wxRESIZE_BORDER) )
+ CreateGripper();
+ else
+ DestroyGripper();
+}
+
+void wxDialog::CreateGripper()
+{
+ if ( !m_hGripper )
+ {
+ // just create it here, it will be positioned and shown later
+ m_hGripper = (WXHWND)::CreateWindow
+ (
+ wxT("SCROLLBAR"),
+ wxT(""),
+ WS_CHILD |
+ WS_CLIPSIBLINGS |
+ SBS_SIZEGRIP |
+ SBS_SIZEBOX |
+ SBS_SIZEBOXBOTTOMRIGHTALIGN,
+ 0, 0, 0, 0,
+ GetHwnd(),
+ 0,
+ wxGetInstance(),
+ NULL
+ );
+ }
+}
+
+void wxDialog::DestroyGripper()
+{
+ if ( m_hGripper )
+ {
+ // we used to have trouble with gripper appearing on top (and hence
+ // overdrawing) the other, real, dialog children -- check that this
+ // isn't the case automatically (but notice that this could be false if
+ // we're not shown at all as in this case ResizeGripper() might not
+ // have been called yet)
+ wxASSERT_MSG( !IsShown() ||
+ ::GetWindow((HWND)m_hGripper, GW_HWNDNEXT) == 0,
+ _T("Bug in wxWidgets: gripper should be at the bottom of Z-order") );
+ ::DestroyWindow((HWND) m_hGripper);
+ m_hGripper = 0;
+ }
+}
+
+void wxDialog::ShowGripper(bool show)
+{
+ wxASSERT_MSG( m_hGripper, _T("shouldn't be called if we have no gripper") );
+
+ if ( show )
+ ResizeGripper();
+
+ ::ShowWindow((HWND)m_hGripper, show ? SW_SHOW : SW_HIDE);
+}
+
+void wxDialog::ResizeGripper()
+{
+ wxASSERT_MSG( m_hGripper, _T("shouldn't be called if we have no gripper") );
+
+ HWND hwndGripper = (HWND)m_hGripper;
+
+ const wxRect rectGripper = wxRectFromRECT(wxGetWindowRect(hwndGripper));
+ const wxSize size = GetClientSize() - rectGripper.GetSize();
+
+ ::SetWindowPos(hwndGripper, HWND_BOTTOM,
+ size.x, size.y,
+ rectGripper.width, rectGripper.height,
+ SWP_NOACTIVATE);
+}
+
+void wxDialog::OnWindowCreate(wxWindowCreateEvent& event)
+{
+ if ( m_hGripper && IsShown() &&
+ event.GetWindow() && event.GetWindow()->GetParent() == this )
+ {
+ // Put gripper below the newly created child window
+ ::SetWindowPos((HWND)m_hGripper, HWND_BOTTOM, 0, 0, 0, 0,
+ SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
+ }
+
+ event.Skip();
+}
+
// ----------------------------------------------------------------------------
// wxWin event handlers
// ----------------------------------------------------------------------------
break;
case WM_SIZE:
+ if ( m_hGripper )
+ {
+ switch ( wParam )
+ {
+ case SIZE_MAXIMIZED:
+ ShowGripper(false);
+ break;
+
+ case SIZE_RESTORED:
+ ShowGripper(true);
+ }
+ }
+
// the Windows dialogs unfortunately are not meant to be resizeable
// at all and their standard class doesn't include CS_[VH]REDRAW
// styles which means that the window is not refreshed properly
projects / wxWidgets.git / blobdiff