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fixed flicker during MDI children creation: the frame is now created hidden and shown in idle time to maintain backward compatibility

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@29549 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Václav Slavík 2004-09-29 21:07:48 +00:00
parent e768548a12
commit 2596e9fb2c
2 changed files with 21 additions and 2 deletions
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3
include/wx/msw/mdi.h
View File

@ -174,6 +174,8 @@ public:
bool ResetWindowStyle(void *vrect);
void OnIdle(wxIdleEvent& event);
virtual bool Show(bool show = true);
protected:
virtual void DoGetPosition(int *x, int *y) const;
@ -187,6 +189,7 @@ protected:
void Init();
private:
bool m_needsInitialShow; // Show must be called in idle time after Creation
bool m_needsResize; // flag which tells us to artificially resize the frame
DECLARE_EVENT_TABLE()

20
src/msw/mdi.cpp
View File

@ -670,6 +670,7 @@ bool wxMDIParentFrame::MSWTranslateMessage(WXMSG* msg)
void wxMDIChildFrame::Init()
{
m_needsResize = true;
m_needsInitialShow = true;
}
bool wxMDIChildFrame::Create(wxMDIParentFrame *parent,
@ -681,7 +682,6 @@ bool wxMDIChildFrame::Create(wxMDIParentFrame *parent,
const wxString& name)
{
SetName(name);
wxWindowBase::Show(true); // MDI child frame starts off shown
if ( id != wxID_ANY )
m_windowId = id;
@ -725,7 +725,7 @@ bool wxMDIChildFrame::Create(wxMDIParentFrame *parent,
else
mcs.cy = CW_USEDEFAULT;
DWORD msflags = WS_OVERLAPPED | WS_CLIPCHILDREN | WS_VISIBLE ;
DWORD msflags = WS_OVERLAPPED | WS_CLIPCHILDREN;
if (style & wxMINIMIZE_BOX)
msflags |= WS_MINIMIZEBOX;
if (style & wxMAXIMIZE_BOX)
@ -773,6 +773,12 @@ wxMDIChildFrame::~wxMDIChildFrame()
MSWDestroyWindow();
}
bool wxMDIChildFrame::Show(bool show)
{
m_needsInitialShow = false;
return wxFrame::Show(show);
}
// Set the client size (i.e. leave the calculation of borders etc.
// to wxWidgets)
void wxMDIChildFrame::DoSetClientSize(int width, int height)
@ -1303,6 +1309,16 @@ void wxMDIClientWindow::DoSetSize(int x, int y, int width, int height, int sizeF
void wxMDIChildFrame::OnIdle(wxIdleEvent& event)
{
// wxMSW prior to 2.5.3 created MDI child frames as visible, which resulted
// in flicker e.g. when the frame contained controls with non-trivial
// layout. Since 2.5.3, the frame is created hidden as all other top level
// windows. In order to maintain backward compatibility, the frame is shown
// in OnIdle, unless Show(false) was called by the programmer before.
if ( m_needsInitialShow )
{
Show(true);
}
// MDI child frames get their WM_SIZE when they're constructed but at this
// moment they don't have any children yet so all child windows will be
// positioned incorrectly when they are added later - to fix this, we