X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9a83f860948059b0273b5cc6d9e43fadad3ebfca..a7aeddacf9dfcb9dca64fccb5f65f387bcff0fb2:/src/common/wincmn.cpp diff --git a/src/common/wincmn.cpp b/src/common/wincmn.cpp index 6eddc7acf4..63bc0450f6 100644 --- a/src/common/wincmn.cpp +++ b/src/common/wincmn.cpp @@ -73,6 +73,11 @@ #endif #include "wx/platinfo.h" +#include "wx/private/window.h" + +#ifdef __WXMSW__ + #include "wx/msw/wrapwin.h" +#endif // Windows List WXDLLIMPEXP_DATA_CORE(wxWindowList) wxTopLevelWindows; @@ -213,9 +218,8 @@ wxWindowBase::wxWindowBase() bool wxWindowBase::CreateBase(wxWindowBase *parent, wxWindowID id, const wxPoint& WXUNUSED(pos), - const wxSize& WXUNUSED(size), + const wxSize& size, long style, - const wxValidator& wxVALIDATOR_PARAM(validator), const wxString& name) { // ids are limited to 16 bits under MSW so if you care about portability, @@ -240,9 +244,32 @@ bool wxWindowBase::CreateBase(wxWindowBase *parent, // flags by updating the window dynamically and we don't need this here m_windowStyle = style; + // assume the user doesn't want this window to shrink beneath its initial + // size, this worked like this in wxWidgets 2.8 and before and generally + // often makes sense for child windows (for top level ones it definitely + // does not as the user should be able to resize the window) + // + // note that we can't use IsTopLevel() from ctor + if ( size != wxDefaultSize && !wxTopLevelWindows.Find((wxWindow *)this) ) + SetMinSize(size); + SetName(name); SetParent(parent); + return true; +} + +bool wxWindowBase::CreateBase(wxWindowBase *parent, + wxWindowID id, + const wxPoint& pos, + const wxSize& size, + long style, + const wxValidator& wxVALIDATOR_PARAM(validator), + const wxString& name) +{ + if ( !CreateBase(parent, id, pos, size, style, name) ) + return false; + #if wxUSE_VALIDATORS SetValidator(validator); #endif // wxUSE_VALIDATORS @@ -300,6 +327,12 @@ wxWindowBase::~wxWindowBase() // we weren't a dialog class wxTopLevelWindows.DeleteObject((wxWindow*)this); + // Any additional event handlers should be popped before the window is + // deleted as otherwise the last handler will be left with a dangling + // pointer to this window result in a difficult to diagnose crash later on. + wxASSERT_MSG( GetEventHandler() == this, + wxT("any pushed event handlers must have been removed") ); + #if wxUSE_MENUS // The associated popup menu can still be alive, disassociate from it in // this case @@ -331,8 +364,7 @@ wxWindowBase::~wxWindowBase() // This removes any dangling pointers to this window in other windows' // constraintsInvolvedIn lists. UnsetConstraints(m_constraints); - delete m_constraints; - m_constraints = NULL; + wxDELETE(m_constraints); } #endif // wxUSE_CONSTRAINTS @@ -474,7 +506,7 @@ static bool wxHasRealChildren(const wxWindowBase* win) node = node->GetNext() ) { wxWindow *win = node->GetData(); - if ( !win->IsTopLevel() && win->IsShown() + if ( !win->IsTopLevel() && win->IsShown() #if wxUSE_SCROLLBAR && !win->IsKindOf(CLASSINFO(wxScrollBar)) #endif @@ -593,19 +625,14 @@ wxSize wxWindowBase::DoGetBestSize() const } else // ! has children { - // for a generic window there is no natural best size so, if the - // minimal size is not set, use the current size but take care to - // remember it as minimal size for the next time because our best size - // should be constant: otherwise we could get into a situation when the - // window is initially at some size, then expanded to a larger size and - // then, when the containing window is shrunk back (because our initial - // best size had been used for computing the parent min size), we can't - // be shrunk back any more because our best size is now bigger wxSize size = GetMinSize(); if ( !size.IsFullySpecified() ) { - size.SetDefaults(GetSize()); - wxConstCast(this, wxWindowBase)->SetMinSize(size); + // if the window doesn't define its best size we assume that it can + // be arbitrarily small -- usually this is not the case, of course, + // but we have no way to know what the limit is, it should really + // override DoGetBestClientSize() itself to tell us + size.SetDefaults(wxSize(1, 1)); } // return as-is, unadjusted by the client size difference. @@ -707,6 +734,18 @@ wxSize wxWindowBase::GetEffectiveMinSize() const return min; } +wxSize wxWindowBase::DoGetBorderSize() const +{ + // there is one case in which we can implement it for all ports easily + if ( GetBorder() == wxBORDER_NONE ) + return wxSize(0, 0); + + // otherwise use the difference between the real size and the client size + // as a fallback: notice that this is incorrect in general as client size + // also doesn't take the scrollbars into account + return GetSize() - GetClientSize(); +} + wxSize wxWindowBase::GetBestSize() const { if ( !m_windowSizer && m_bestSizeCache.IsFullySpecified() ) @@ -797,18 +836,15 @@ void wxWindowBase::DoSetWindowVariant( wxWindowVariant variant ) break; case wxWINDOW_VARIANT_SMALL: - size *= 3; - size /= 4; + size = wxRound(size * 3.0 / 4.0); break; case wxWINDOW_VARIANT_MINI: - size *= 2; - size /= 3; + size = wxRound(size * 2.0 / 3.0); break; case wxWINDOW_VARIANT_LARGE: - size *= 5; - size /= 4; + size = wxRound(size * 5.0 / 4.0); break; default: @@ -896,6 +932,20 @@ void wxWindowBase::SendSizeEventToParent(int flags) parent->SendSizeEvent(flags); } +bool wxWindowBase::HasScrollbar(int orient) const +{ + // if scrolling in the given direction is disabled, we can't have the + // corresponding scrollbar no matter what + if ( !CanScroll(orient) ) + return false; + + const wxSize sizeVirt = GetVirtualSize(); + const wxSize sizeClient = GetClientSize(); + + return orient == wxHORIZONTAL ? sizeVirt.x > sizeClient.x + : sizeVirt.y > sizeClient.y; +} + // ---------------------------------------------------------------------------- // show/hide/enable/disable the window // ---------------------------------------------------------------------------- @@ -1197,8 +1247,7 @@ wxEvtHandler *wxWindowBase::PopEventHandler(bool deleteHandler) if ( deleteHandler ) { - delete firstHandler; - firstHandler = NULL; + wxDELETE(firstHandler); } return firstHandler; @@ -1218,7 +1267,7 @@ bool wxWindowBase::RemoveEventHandler(wxEvtHandler *handlerToRemove) // NOTE: the wxWindow event handler list is always terminated with "this" handler wxEvtHandler *handlerCur = GetEventHandler()->GetNextHandler(); - while ( handlerCur != this ) + while ( handlerCur != this && handlerCur ) { wxEvtHandler *handlerNext = handlerCur->GetNextHandler(); @@ -1313,7 +1362,7 @@ wxColour wxWindowBase::GetBackgroundColour() const wxColour colBg = GetDefaultAttributes().colBg; // we must return some valid colour to avoid redoing this every time - // and also to avoid surprizing the applications written for older + // and also to avoid surprising the applications written for older // wxWidgets versions where GetBackgroundColour() always returned // something -- so give them something even if it doesn't make sense // for this window (e.g. it has a themed background) @@ -1878,6 +1927,11 @@ void wxWindowBase::OnHelp(wxHelpEvent& event) #if wxUSE_TOOLTIPS +wxString wxWindowBase::GetToolTipText() const +{ + return m_tooltip ? m_tooltip->GetTip() : wxString(); +} + void wxWindowBase::SetToolTip( const wxString &tip ) { // don't create the new tooltip if we already have one @@ -2014,8 +2068,7 @@ void wxWindowBase::DeleteRelatedConstraints() node = next; } - delete m_constraintsInvolvedIn; - m_constraintsInvolvedIn = NULL; + wxDELETE(m_constraintsInvolvedIn); } } @@ -2235,7 +2288,9 @@ void wxWindowBase::SetConstraintSizes(bool recurse) if ( (constr->width.GetRelationship() != wxAsIs ) || (constr->height.GetRelationship() != wxAsIs) ) { - SetSize(x, y, w, h); + // We really shouldn't set negative sizes for the windows so make + // them at least of 1*1 size + SetSize(x, y, w > 0 ? w : 1, h > 0 ? h : 1); } else { @@ -2404,28 +2459,57 @@ void wxWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event) // dialog units translations // ---------------------------------------------------------------------------- -wxPoint wxWindowBase::ConvertPixelsToDialog(const wxPoint& pt) +// Windows' computes dialog units using average character width over upper- +// and lower-case ASCII alphabet and not using the average character width +// metadata stored in the font; see +// http://support.microsoft.com/default.aspx/kb/145994 for detailed discussion. +// It's important that we perform the conversion in identical way, because +// dialog units natively exist only on Windows and Windows HIG is expressed +// using them. +wxSize wxWindowBase::GetDlgUnitBase() const { - int charWidth = GetCharWidth(); - int charHeight = GetCharHeight(); + const wxWindow *parent = wxGetTopLevelParent((wxWindow*)this); + + if ( !parent->m_font.IsOk() ) + { + // Default GUI font is used. This is the most common case, so + // cache the results. + static wxSize s_defFontSize; + if ( s_defFontSize.x == 0 ) + s_defFontSize = wxPrivate::GetAverageASCIILetterSize(*parent); + return s_defFontSize; + } + else + { + // Custom font, we always need to compute the result + return wxPrivate::GetAverageASCIILetterSize(*parent); + } +} + +wxPoint wxWindowBase::ConvertPixelsToDialog(const wxPoint& pt) const +{ + const wxSize base = GetDlgUnitBase(); + + // NB: wxMulDivInt32() is used, because it correctly rounds the result + wxPoint pt2 = wxDefaultPosition; if (pt.x != wxDefaultCoord) - pt2.x = (int) ((pt.x * 4) / charWidth); + pt2.x = wxMulDivInt32(pt.x, 4, base.x); if (pt.y != wxDefaultCoord) - pt2.y = (int) ((pt.y * 8) / charHeight); + pt2.y = wxMulDivInt32(pt.y, 8, base.y); return pt2; } -wxPoint wxWindowBase::ConvertDialogToPixels(const wxPoint& pt) +wxPoint wxWindowBase::ConvertDialogToPixels(const wxPoint& pt) const { - int charWidth = GetCharWidth(); - int charHeight = GetCharHeight(); + const wxSize base = GetDlgUnitBase(); + wxPoint pt2 = wxDefaultPosition; if (pt.x != wxDefaultCoord) - pt2.x = (int) ((pt.x * charWidth) / 4); + pt2.x = wxMulDivInt32(pt.x, base.x, 4); if (pt.y != wxDefaultCoord) - pt2.y = (int) ((pt.y * charHeight) / 8); + pt2.y = wxMulDivInt32(pt.y, base.y, 8); return pt2; } @@ -2435,7 +2519,7 @@ wxPoint wxWindowBase::ConvertDialogToPixels(const wxPoint& pt) // ---------------------------------------------------------------------------- // propagate the colour change event to the subwindows -void wxWindowBase::OnSysColourChanged(wxSysColourChangedEvent& event) +void wxWindowBase::OnSysColourChanged(wxSysColourChangedEvent& WXUNUSED(event)) { wxWindowList::compatibility_iterator node = GetChildren().GetFirst(); while ( node ) @@ -2445,7 +2529,7 @@ void wxWindowBase::OnSysColourChanged(wxSysColourChangedEvent& event) if ( !win->IsTopLevel() ) { wxSysColourChangedEvent event2; - event.SetEventObject(win); + event2.SetEventObject(win); win->GetEventHandler()->ProcessEvent(event2); } @@ -2476,6 +2560,9 @@ bool wxWindowBase::PopupMenu(wxMenu *menu, int x, int y) { wxCHECK_MSG( menu, false, "can't popup NULL menu" ); + wxMenuInvokingWindowSetter + setInvokingWin(*menu, static_cast(this)); + wxCurrentPopupMenu = menu; const bool rc = DoPopupMenu(menu, x, y); wxCurrentPopupMenu = NULL; @@ -2539,8 +2626,11 @@ wxWindowBase::DoGetPopupMenuSelectionFromUser(wxMenu& menu, int x, int y) #endif // wxUSE_MENUS -// methods for drawing the sizers in a visible way -#ifdef __WXDEBUG__ +// methods for drawing the sizers in a visible way: this is currently only +// enabled for "full debug" builds with wxDEBUG_LEVEL==2 as it doesn't work +// that well and also because we don't want to leave it enabled in default +// builds used for production +#if wxDEBUG_LEVEL > 1 static void DrawSizers(wxWindowBase *win); @@ -2622,22 +2712,25 @@ static void DrawSizers(wxWindowBase *win) } } -#endif // __WXDEBUG__ +#endif // wxDEBUG_LEVEL // process special middle clicks void wxWindowBase::OnMiddleClick( wxMouseEvent& event ) { if ( event.ControlDown() && event.AltDown() ) { -#ifdef __WXDEBUG__ +#if wxDEBUG_LEVEL > 1 // Ctrl-Alt-Shift-mclick makes the sizers visible in debug builds if ( event.ShiftDown() ) { DrawSizers(this); - return; } + else #endif // __WXDEBUG__ - ::wxInfoMessageBox((wxWindow*)this); + { + // just Ctrl-Alt-middle click shows information about wx version + ::wxInfoMessageBox((wxWindow*)this); + } } else { @@ -2883,7 +2976,7 @@ bool wxWindowBase::TryBefore(wxEvent& event) if ( event.GetEventObject() == this ) { wxValidator * const validator = GetValidator(); - if ( validator && validator->ProcessEventHere(event) ) + if ( validator && validator->ProcessEventLocally(event) ) { return true; }