X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8907154c1a8a6882c6797d1f16393ddfb23e7f3a..116de9914878c202141f0ea20251a451593a52c9:/src/msw/radiobut.cpp diff --git a/src/msw/radiobut.cpp b/src/msw/radiobut.cpp index e41f4cc7c0..719616e29c 100644 --- a/src/msw/radiobut.cpp +++ b/src/msw/radiobut.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: msw/radiobut.cpp +// Name: src/msw/radiobut.cpp // Purpose: wxRadioButton // Author: Julian Smart // Modified by: @@ -26,10 +26,12 @@ #if wxUSE_RADIOBTN +#include "wx/radiobut.h" + #ifndef WX_PRECOMP - #include "wx/radiobut.h" #include "wx/settings.h" #include "wx/dcscreen.h" + #include "wx/toplevel.h" #endif #include "wx/msw/private.h" @@ -119,18 +121,14 @@ bool wxRadioButton::Create(wxWindow *parent, if ( HasFlag(wxRB_GROUP) ) msStyle |= WS_GROUP; - /* - wxRB_SINGLE is a temporary workaround for the following problem: if you - have 2 radiobuttons in the same group but which are not consecutive in - the dialog, Windows can enter an infinite loop! The simplest way to - reproduce it is to create radio button, then a panel and then another - radio button: then checking the last button hangs the app. - - Ideally, we'd detect (and avoid) such situation automatically but for - now, as I don't know how to do it, just allow the user to create - BS_RADIOBUTTON buttons for such situations. - */ - msStyle |= HasFlag(wxRB_SINGLE) ? BS_RADIOBUTTON : BS_AUTORADIOBUTTON; + // we use BS_RADIOBUTTON and not BS_AUTORADIOBUTTON because the use of the + // latter can easily result in the application entering an infinite loop + // inside IsDialogMessage() + // + // we used to use BS_RADIOBUTTON only for wxRB_SINGLE buttons but there + // doesn't seem to be any harm to always use it and it prevents some hangs, + // see #9786 + msStyle |= BS_RADIOBUTTON; if ( HasFlag(wxCLIP_SIBLINGS) ) msStyle |= WS_CLIPSIBLINGS; @@ -142,7 +140,7 @@ bool wxRadioButton::Create(wxWindow *parent, // for compatibility with wxGTK, the first radio button in a group is // always checked (this makes sense anyhow as you need to ensure that at - // least one button in the group is checked and this is the simlpest way to + // least one button in the group is checked and this is the simplest way to // do it) if ( HasFlag(wxRB_GROUP) ) SetValue(true); @@ -156,82 +154,108 @@ bool wxRadioButton::Create(wxWindow *parent, void wxRadioButton::SetValue(bool value) { - (void)::SendMessage(GetHwnd(), BM_SETCHECK, (value?BST_CHECKED:BST_UNCHECKED), 0L); + ::SendMessage(GetHwnd(), BM_SETCHECK, + value ? BST_CHECKED : BST_UNCHECKED, 0); m_isChecked = value; + if ( !value ) + return; + // if we set the value of one radio button we also must clear all the other // buttons in the same group: Windows doesn't do it automatically - if ( m_isChecked ) + // + // moreover, if another radiobutton in the group currently has the focus, + // we have to set it to this radiobutton, else the old radiobutton will be + // reselected automatically, if a parent window loses the focus and regains + // it. + wxWindow * const focus = FindFocus(); + wxTopLevelWindow * const + tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow); + wxCHECK_RET( tlw, _T("radio button outside of TLW?") ); + wxWindow * const focusInTLW = tlw->GetLastFocus(); + + const wxWindowList& siblings = GetParent()->GetChildren(); + wxWindowList::compatibility_iterator nodeThis = siblings.Find(this); + wxCHECK_RET( nodeThis, _T("radio button not a child of its parent?") ); + + // this will be set to true in the code below if the focus is in our TLW + // and belongs to one of the other buttons in the same group + bool shouldSetFocus = false; + + // this will be set to true if the focus is outside of our TLW currently + // but the remembered focus of this TLW is one of the other buttons in the + // same group + bool shouldSetTLWFocus = false; + + // if it's not the first item of the group ... + if ( !HasFlag(wxRB_GROUP) ) { - // If another radiobutton in the group currently has the focus, we have to - // set it to this radiobutton, else the old readiobutton will be reselected - // automatically, if a parent window loses the focus and regains it. - bool shouldSetFocus = false; - wxWindow* pFocusWnd = FindFocus(); - - const wxWindowList& siblings = GetParent()->GetChildren(); - wxWindowList::compatibility_iterator nodeThis = siblings.Find(this); - wxCHECK_RET( nodeThis, _T("radio button not a child of its parent?") ); - - // if it's not the first item of the group ... - if ( !HasFlag(wxRB_GROUP) ) + // ... turn off all radio buttons before it + for ( wxWindowList::compatibility_iterator nodeBefore = nodeThis->GetPrevious(); + nodeBefore; + nodeBefore = nodeBefore->GetPrevious() ) { - // ... turn off all radio buttons before it - for ( wxWindowList::compatibility_iterator nodeBefore = nodeThis->GetPrevious(); - nodeBefore; - nodeBefore = nodeBefore->GetPrevious() ) + wxRadioButton *btn = wxDynamicCast(nodeBefore->GetData(), + wxRadioButton); + if ( !btn ) { - wxRadioButton *btn = wxDynamicCast(nodeBefore->GetData(), - wxRadioButton); - if ( btn && btn->HasFlag(wxRB_SINGLE) ) + // don't stop on non radio buttons, we could have intermixed + // buttons and e.g. static labels + continue; + } + + if ( btn->HasFlag(wxRB_SINGLE) ) { // A wxRB_SINGLE button isn't part of this group break; } - - if (btn) - { - if (btn == pFocusWnd) - shouldSetFocus = true; - btn->SetValue(false); + if ( btn == focus ) + shouldSetFocus = true; + else if ( btn == focusInTLW ) + shouldSetTLWFocus = true; - if ( btn->HasFlag(wxRB_GROUP) ) - { - // even if there are other radio buttons before this one, - // they're not in the same group with us - break; - } - } - } - } + btn->SetValue(false); - // ... and also turn off all buttons after this one - for ( wxWindowList::compatibility_iterator nodeAfter = nodeThis->GetNext(); - nodeAfter; - nodeAfter = nodeAfter->GetNext() ) - { - wxRadioButton *btn = wxDynamicCast(nodeAfter->GetData(), - wxRadioButton); - - if ( btn && (btn->HasFlag(wxRB_GROUP) || btn->HasFlag(wxRB_SINGLE) ) ) + if ( btn->HasFlag(wxRB_GROUP) ) { - // no more buttons or the first button of the next group + // even if there are other radio buttons before this one, + // they're not in the same group with us break; } + } + } - if (btn) - { - if (btn == pFocusWnd) - shouldSetFocus = true; + // ... and also turn off all buttons after this one + for ( wxWindowList::compatibility_iterator nodeAfter = nodeThis->GetNext(); + nodeAfter; + nodeAfter = nodeAfter->GetNext() ) + { + wxRadioButton *btn = wxDynamicCast(nodeAfter->GetData(), + wxRadioButton); - btn->SetValue(false); - } + if ( !btn ) + continue; + + if ( btn->HasFlag(wxRB_GROUP | wxRB_SINGLE) ) + { + // no more buttons or the first button of the next group + break; } - if (shouldSetFocus) - SetFocus(); + + if ( btn == focus ) + shouldSetFocus = true; + else if ( btn == focusInTLW ) + shouldSetTLWFocus = true; + + btn->SetValue(false); } + + if ( shouldSetFocus ) + SetFocus(); + else if ( shouldSetTLWFocus ) + tlw->SetLastFocus(this); } bool wxRadioButton::GetValue() const @@ -260,9 +284,8 @@ bool wxRadioButton::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) if ( !m_isChecked ) { - // we have to do this for BS_RADIOBUTTON anyhow and, strangely enough, - // sometimes this is needed even for BS_AUTORADIOBUTTON (when we - // receive focus the button gets BN_CLICKED but stays unchecked!) + // we need to manually update the button state as we use BS_RADIOBUTTON + // and not BS_AUTORADIOBUTTON SetValue(true); wxCommandEvent event(wxEVT_COMMAND_RADIOBUTTON_SELECTED, GetId()); @@ -289,6 +312,13 @@ wxSize wxRadioButton::DoGetBestSize() const dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); s_radioSize = dc.GetCharHeight(); + + // radio button bitmap size under CE is bigger than the font height, + // adding just one pixel seems to work fine for the default font but it + // would be nice to find some better way to find the correct height +#ifdef __WXWINCE__ + s_radioSize++; +#endif // __WXWINCE__ } wxString str = GetLabel(); @@ -296,7 +326,7 @@ wxSize wxRadioButton::DoGetBestSize() const int wRadio, hRadio; if ( !str.empty() ) { - GetTextExtent(str, &wRadio, &hRadio); + GetTextExtent(GetLabelText(str), &wRadio, &hRadio); wRadio += s_radioSize + GetCharWidth(); if ( hRadio < s_radioSize ) @@ -313,5 +343,14 @@ wxSize wxRadioButton::DoGetBestSize() const return best; } -#endif // wxUSE_RADIOBTN +WXDWORD wxRadioButton::MSWGetStyle(long style, WXDWORD *exstyle) const +{ + WXDWORD styleMSW = wxControl::MSWGetStyle(style, exstyle); + + if ( style & wxRB_GROUP ) + styleMSW |= WS_GROUP; + return styleMSW; +} + +#endif // wxUSE_RADIOBTN