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fixed default button handling: don't keep BS_DEFPUSHBUTTON style when the app loses focus

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16689 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2002-08-22 20:34:29 +00:00
parent cdfb1ae1bc
commit 7fb1b2b4c4
2 changed files with 62 additions and 45 deletions
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4
include/wx/msw/button.h
View File

@ -73,8 +73,8 @@ protected:
void SetTmpDefault();
void UnsetTmpDefault();
static void UpdateDefaultStyle(wxWindow *winDefault,
wxWindow *winOldDefault);
// set or unset BS_DEFPUSHBUTTON style
static void SetDefaultStyle(wxButton *btn, bool on);
// usually overridden base class virtuals
virtual wxSize DoGetBestSize() const;

101
src/msw/button.cpp
View File

@ -201,7 +201,9 @@ wxSize wxButtonBase::GetDefaultSize()
handled by ::DefWindowProc() (or maybe ::DefDialogProc()) using DM_SETDEFID
Another aspect of "defaultness" is that the default button has different
appearance: this is due to BS_DEFPUSHBUTTON style which is completely
separate from DM_SETDEFID stuff (!).
separate from DM_SETDEFID stuff (!). Also note that BS_DEFPUSHBUTTON should
be unset if our parent window is not active so it should be unset whenever
we lose activation and set back when we regain it.
Final complication is that when a button is active, it should be the default
one, i.e. pressing Enter on a button always activates it and not another
@ -215,9 +217,13 @@ wxSize wxButtonBase::GetDefaultSize()
the default item will be the permanent default -- that is the default button
if any had been set or none otherwise, which is just what we want.
Remark that we probably don't need to send DM_SETDEFID as we don't use
::IsDialogMessage() (which relies on it) any longer but OTOH it probably
doesn't hurt neither.
NB: all this is quite complicated by now and the worst is that normally
it shouldn't be necessary at all as for the normal Windows programs
DefWindowProc() and IsDialogMessage() take care of all this
automatically -- however in wxWindows programs this doesn't work for
nested hierarchies (i.e. a notebook inside a notebook) for unknown
reason and so we have to reproduce all this code ourselves. It would be
very nice if we could avoid doing it.
*/
// set this button as the (permanently) default one in its panel
@ -227,13 +233,15 @@ void wxButton::SetDefault()
wxCHECK_RET( parent, _T("button without parent?") );
// set this one as the default button both for wxWindows and Windows
// set this one as the default button both for wxWindows ...
wxWindow *winOldDefault = parent->SetDefaultItem(this);
::SendMessage(GetWinHwnd(parent), DM_SETDEFID, m_windowId, 0L);
UpdateDefaultStyle(this, winOldDefault);
// ... and Windows
SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), FALSE);
SetDefaultStyle(this, TRUE);
}
// set this button as being currently default
void wxButton::SetTmpDefault()
{
wxWindow *parent = GetParent();
@ -242,13 +250,12 @@ void wxButton::SetTmpDefault()
wxWindow *winOldDefault = parent->GetDefaultItem();
parent->SetTmpDefaultItem(this);
if ( winOldDefault != this )
{
UpdateDefaultStyle(this, winOldDefault);
}
//else: no styles to update
SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), FALSE);
SetDefaultStyle(this, TRUE);
}
// unset this button as currently default, it may still stay permanent default
void wxButton::UnsetTmpDefault()
{
wxWindow *parent = GetParent();
@ -258,54 +265,64 @@ void wxButton::UnsetTmpDefault()
parent->SetTmpDefaultItem(NULL);
wxWindow *winOldDefault = parent->GetDefaultItem();
if ( winOldDefault != this )
{
UpdateDefaultStyle(winOldDefault, this);
}
//else: we had been default before anyhow
SetDefaultStyle(this, FALSE);
SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), TRUE);
}
/* static */
void
wxButton::UpdateDefaultStyle(wxWindow *winDefault, wxWindow *winOldDefault)
wxButton::SetDefaultStyle(wxButton *btn, bool on)
{
// clear the BS_DEFPUSHBUTTON for the old default button
wxButton *btnOldDefault = wxDynamicCast(winOldDefault, wxButton);
if ( btnOldDefault && btnOldDefault != winDefault )
{
// remove the BS_DEFPUSHBUTTON style from the other button
long style = ::GetWindowLong(GetHwndOf(btnOldDefault), GWL_STYLE);
// we may be called with NULL pointer -- simpler to do the check here than
// in the caller which does wxDynamicCast()
if ( !btn )
return;
// don't do it with the owner drawn buttons because it will reset
// BS_OWNERDRAW style bit too (BS_OWNERDRAW & BS_DEFPUSHBUTTON != 0)!
if ( (style & BS_OWNERDRAW) != BS_OWNERDRAW )
// first, let DefDlgProc() know about the new default button
if ( on )
{
style &= ~BS_DEFPUSHBUTTON;
::SendMessage(GetHwndOf(btnOldDefault), BM_SETSTYLE, style, 1L);
}
else
// we shouldn't set BS_DEFPUSHBUTTON for any button if we don't have
// focus at all any more
if ( !wxTheApp->IsActive() )
return;
// look for a panel-like window
wxWindow *win = btn->GetParent();
while ( win && !win->HasFlag(wxTAB_TRAVERSAL) )
win = win->GetParent();
if ( win )
{
// redraw the button - it will notice itself that it's not the
// default one any longer
btnOldDefault->Refresh();
::SendMessage(GetHwndOf(win), DM_SETDEFID, btn->GetId(), 0L);
// sending DM_SETDEFID also changes the button style to
// BS_DEFPUSHBUTTON so there is nothing more to do
}
}
// and set BS_DEFPUSHBUTTON for this button
wxButton *btnDefault = wxDynamicCast(winDefault, wxButton);
if ( btnDefault )
// then also change the style as needed
long style = ::GetWindowLong(GetHwndOf(btn), GWL_STYLE);
if ( !(style & BS_DEFPUSHBUTTON) == on )
{
long style = ::GetWindowLong(GetHwndOf(btnDefault), GWL_STYLE);
// don't do it with the owner drawn buttons because it will
// reset BS_OWNERDRAW style bit too (as BS_OWNERDRAW &
// BS_DEFPUSHBUTTON != 0)!
if ( (style & BS_OWNERDRAW) != BS_OWNERDRAW )
{
style |= BS_DEFPUSHBUTTON;
::SendMessage(GetHwndOf(btnDefault), BM_SETSTYLE, style, 1L);
::SendMessage(GetHwndOf(btn), BM_SETSTYLE,
on ? style | BS_DEFPUSHBUTTON
: style & ~BS_DEFPUSHBUTTON,
1L /* redraw */);
}
else
else // owner drawn
{
btnDefault->Refresh();
// redraw the button - it will notice itself that it's
// [not] the default one [any longer]
btn->Refresh();
}
}
//else: already has correct style
}
// ----------------------------------------------------------------------------