X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/fd71308fc89eac2dd212b715eba68a993fa78f53..93c2f401e9955dc37df1f8dbfea7881c676b8ddb:/src/common/wincmn.cpp diff --git a/src/common/wincmn.cpp b/src/common/wincmn.cpp index 4aebe4007e..690233bc75 100644 --- a/src/common/wincmn.cpp +++ b/src/common/wincmn.cpp @@ -1,90 +1,2935 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: windows.cpp +// Name: common/window.cpp // Purpose: common (to all ports) wxWindow functions // Author: Julian Smart, Vadim Zeitlin // Modified by: // Created: 13/07/98 // RCS-ID: $Id$ -// Copyright: (c) Julian Smart and Markus Holzem -// Licence: wxWindows license +// Copyright: (c) wxWidgets team +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -// For compilers that support precompilation, includes "wx.h". -#include "wx/wxprec.h" +// ============================================================================ +// declarations +// ============================================================================ + +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- + +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) + #pragma implementation "windowbase.h" +#endif // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop +#endif + +#ifndef WX_PRECOMP + #include "wx/string.h" + #include "wx/log.h" + #include "wx/intl.h" + #include "wx/frame.h" + #include "wx/defs.h" + #include "wx/window.h" + #include "wx/control.h" + #include "wx/checkbox.h" + #include "wx/radiobut.h" + #include "wx/statbox.h" + #include "wx/textctrl.h" + #include "wx/settings.h" + #include "wx/dialog.h" + #include "wx/msgdlg.h" + #include "wx/statusbr.h" + #include "wx/dcclient.h" +#endif //WX_PRECOMP + +#if defined(__WXMAC__) && wxUSE_SCROLLBAR + #include "wx/scrolbar.h" +#endif + +#if wxUSE_CONSTRAINTS + #include "wx/layout.h" +#endif // wxUSE_CONSTRAINTS + +#include "wx/sizer.h" + +#if wxUSE_DRAG_AND_DROP + #include "wx/dnd.h" +#endif // wxUSE_DRAG_AND_DROP + +#if wxUSE_ACCESSIBILITY + #include "wx/access.h" +#endif + +#if wxUSE_HELP + #include "wx/cshelp.h" +#endif // wxUSE_HELP + +#if wxUSE_TOOLTIPS + #include "wx/tooltip.h" +#endif // wxUSE_TOOLTIPS + +#if wxUSE_CARET + #include "wx/caret.h" +#endif // wxUSE_CARET + +#if wxUSE_SYSTEM_OPTIONS + #include "wx/sysopt.h" +#endif + +// ---------------------------------------------------------------------------- +// static data +// ---------------------------------------------------------------------------- + +#if defined(__WXPM__) +int wxWindowBase::ms_lastControlId = 2000; +#else +int wxWindowBase::ms_lastControlId = -200; #endif -#include "wx/frame.h" -#include "wx/defs.h" -#include "wx/window.h" +IMPLEMENT_ABSTRACT_CLASS(wxWindowBase, wxEvtHandler) + +// ---------------------------------------------------------------------------- +// event table +// ---------------------------------------------------------------------------- + +BEGIN_EVENT_TABLE(wxWindowBase, wxEvtHandler) + EVT_SYS_COLOUR_CHANGED(wxWindowBase::OnSysColourChanged) + EVT_INIT_DIALOG(wxWindowBase::OnInitDialog) + EVT_MIDDLE_DOWN(wxWindowBase::OnMiddleClick) + +#if wxUSE_HELP + EVT_HELP(wxID_ANY, wxWindowBase::OnHelp) +#endif // wxUSE_HELP -// Do Update UI processing for child controls +END_EVENT_TABLE() -// TODO: should this be implemented for the child window rather -// than the parent? Then you can override it e.g. for wxCheckBox -// to do the Right Thing rather than having to assume a fixed number -// of control classes. -#include "wx/checkbox.h" -#include "wx/radiobut.h" +// ============================================================================ +// implementation of the common functionality of the wxWindow class +// ============================================================================ -void wxWindow::UpdateWindowUI() +// ---------------------------------------------------------------------------- +// initialization +// ---------------------------------------------------------------------------- + +// the default initialization +wxWindowBase::wxWindowBase() { - wxWindowID id = GetId(); - if (id > 0) - { - wxUpdateUIEvent event(id); - event.m_eventObject = this; + // no window yet, no parent nor children + m_parent = (wxWindow *)NULL; + m_windowId = wxID_ANY; + + // no constraints on the minimal window size + m_minWidth = + m_maxWidth = wxDefaultCoord; + m_minHeight = + m_maxHeight = wxDefaultCoord; + + // invalidiated cache value + m_bestSizeCache = wxDefaultSize; + + // window are created enabled and visible by default + m_isShown = + m_isEnabled = true; + + // the default event handler is just this window + m_eventHandler = this; + +#if wxUSE_VALIDATORS + // no validator + m_windowValidator = (wxValidator *) NULL; +#endif // wxUSE_VALIDATORS + + // the colours/fonts are default for now, so leave m_font, + // m_backgroundColour and m_foregroundColour uninitialized and set those + m_hasBgCol = + m_hasFgCol = + m_hasFont = false; + m_inheritBgCol = + m_inheritFgCol = + m_inheritFont = false; - if (this->GetEventHandler()->ProcessEvent(event)) + // no style bits + m_exStyle = + m_windowStyle = 0; + + m_backgroundStyle = wxBG_STYLE_SYSTEM; + +#if wxUSE_CONSTRAINTS + // no constraints whatsoever + m_constraints = (wxLayoutConstraints *) NULL; + m_constraintsInvolvedIn = (wxWindowList *) NULL; +#endif // wxUSE_CONSTRAINTS + + m_windowSizer = (wxSizer *) NULL; + m_containingSizer = (wxSizer *) NULL; + m_autoLayout = false; + +#if wxUSE_DRAG_AND_DROP + m_dropTarget = (wxDropTarget *)NULL; +#endif // wxUSE_DRAG_AND_DROP + +#if wxUSE_TOOLTIPS + m_tooltip = (wxToolTip *)NULL; +#endif // wxUSE_TOOLTIPS + +#if wxUSE_CARET + m_caret = (wxCaret *)NULL; +#endif // wxUSE_CARET + +#if wxUSE_PALETTE + m_hasCustomPalette = false; +#endif // wxUSE_PALETTE + +#if wxUSE_ACCESSIBILITY + m_accessible = NULL; +#endif + + m_virtualSize = wxDefaultSize; + + m_minVirtualWidth = + m_maxVirtualWidth = wxDefaultCoord; + m_minVirtualHeight = + m_maxVirtualHeight = wxDefaultCoord; + + m_windowVariant = wxWINDOW_VARIANT_NORMAL; +#if wxUSE_SYSTEM_OPTIONS + if ( wxSystemOptions::HasOption(wxWINDOW_DEFAULT_VARIANT) ) { - if (event.GetSetEnabled()) - this->Enable(event.GetEnabled()); + m_windowVariant = (wxWindowVariant) wxSystemOptions::GetOptionInt( wxWINDOW_DEFAULT_VARIANT ) ; + } +#endif - if (event.GetSetText() && this->IsKindOf(CLASSINFO(wxControl))) - ((wxControl*)this)->SetLabel(event.GetText()); + // Whether we're using the current theme for this window (wxGTK only for now) + m_themeEnabled = false; - if (this->IsKindOf(CLASSINFO(wxCheckBox))) - { - if (event.GetSetChecked()) - ((wxCheckBox *) this)->SetValue(event.GetChecked()); - } - // @@@ No radio buttons in wxGTK yet -#ifndef __WXGTK__ - else if (this->IsKindOf(CLASSINFO(wxRadioButton))) - { - if (event.GetSetChecked()) - ((wxRadioButton *) this)->SetValue(event.GetChecked()); - } + // VZ: this one shouldn't exist... + m_isBeingDeleted = false; +} + +// common part of window creation process +bool wxWindowBase::CreateBase(wxWindowBase *parent, + wxWindowID id, + const wxPoint& WXUNUSED(pos), + const wxSize& WXUNUSED(size), + long style, + const wxValidator& wxVALIDATOR_PARAM(validator), + const wxString& name) +{ +#if wxUSE_STATBOX + // wxGTK doesn't allow to create controls with static box as the parent so + // this will result in a crash when the program is ported to wxGTK so warn + // the user about it + + // if you get this assert, the correct solution is to create the controls + // as siblings of the static box + wxASSERT_MSG( !parent || !wxDynamicCast(parent, wxStaticBox), + _T("wxStaticBox can't be used as a window parent!") ); +#endif // wxUSE_STATBOX + + // ids are limited to 16 bits under MSW so if you care about portability, + // it's not a good idea to use ids out of this range (and negative ids are + // reserved for wxWidgets own usage) + wxASSERT_MSG( id == wxID_ANY || (id >= 0 && id < 32767), + _T("invalid id value") ); + + // generate a new id if the user doesn't care about it + m_windowId = id == wxID_ANY ? NewControlId() : id; + + SetName(name); + SetWindowStyleFlag(style); + SetParent(parent); + +#if wxUSE_VALIDATORS + SetValidator(validator); +#endif // wxUSE_VALIDATORS + + // if the parent window has wxWS_EX_VALIDATE_RECURSIVELY set, we want to + // have it too - like this it's possible to set it only in the top level + // dialog/frame and all children will inherit it by defult + if ( parent && (parent->GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) ) + { + SetExtraStyle(GetExtraStyle() | wxWS_EX_VALIDATE_RECURSIVELY); + } + + return true; +} + +// ---------------------------------------------------------------------------- +// destruction +// ---------------------------------------------------------------------------- + +// common clean up +wxWindowBase::~wxWindowBase() +{ + wxASSERT_MSG( GetCapture() != this, wxT("attempt to destroy window with mouse capture") ); + + // FIXME if these 2 cases result from programming errors in the user code + // we should probably assert here instead of silently fixing them + + // Just in case the window has been Closed, but we're then deleting + // immediately: don't leave dangling pointers. + wxPendingDelete.DeleteObject(this); + + // Just in case we've loaded a top-level window via LoadNativeDialog but + // we weren't a dialog class + wxTopLevelWindows.DeleteObject((wxWindow*)this); + + wxASSERT_MSG( GetChildren().GetCount() == 0, wxT("children not destroyed") ); + + // reset the dangling pointer our parent window may keep to us + if ( m_parent ) + { + if ( m_parent->GetDefaultItem() == this ) + { + m_parent->SetDefaultItem(NULL); + } + + m_parent->RemoveChild(this); + } + +#if wxUSE_CARET + delete m_caret; +#endif // wxUSE_CARET + +#if wxUSE_VALIDATORS + delete m_windowValidator; +#endif // wxUSE_VALIDATORS + +#if wxUSE_CONSTRAINTS + // Have to delete constraints/sizer FIRST otherwise sizers may try to look + // at deleted windows as they delete themselves. + DeleteRelatedConstraints(); + + if ( m_constraints ) + { + // This removes any dangling pointers to this window in other windows' + // constraintsInvolvedIn lists. + UnsetConstraints(m_constraints); + delete m_constraints; + m_constraints = NULL; + } +#endif // wxUSE_CONSTRAINTS + + if ( m_containingSizer ) + m_containingSizer->Detach( (wxWindow*)this ); + + delete m_windowSizer; + +#if wxUSE_DRAG_AND_DROP + delete m_dropTarget; +#endif // wxUSE_DRAG_AND_DROP + +#if wxUSE_TOOLTIPS + delete m_tooltip; +#endif // wxUSE_TOOLTIPS + +#if wxUSE_ACCESSIBILITY + delete m_accessible; #endif +} + +bool wxWindowBase::Destroy() +{ + delete this; + + return true; +} + +bool wxWindowBase::Close(bool force) +{ + wxCloseEvent event(wxEVT_CLOSE_WINDOW, m_windowId); + event.SetEventObject(this); + event.SetCanVeto(!force); + + // return false if window wasn't closed because the application vetoed the + // close event + return GetEventHandler()->ProcessEvent(event) && !event.GetVeto(); +} + +bool wxWindowBase::DestroyChildren() +{ + wxWindowList::compatibility_iterator node; + for ( ;; ) + { + // we iterate until the list becomes empty + node = GetChildren().GetFirst(); + if ( !node ) + break; + + wxWindow *child = node->GetData(); + + // note that we really want to call delete and not ->Destroy() here + // because we want to delete the child immediately, before we are + // deleted, and delayed deletion would result in problems as our (top + // level) child could outlive its parent + delete child; + + wxASSERT_MSG( !GetChildren().Find(child), + wxT("child didn't remove itself using RemoveChild()") ); } - } + + return true; } -// Dialog units translations. Implemented in wincmn.cpp. -wxPoint wxWindow::ConvertPixelsToDialog(const wxPoint& pt) +// ---------------------------------------------------------------------------- +// size/position related methods +// ---------------------------------------------------------------------------- + +// centre the window with respect to its parent in either (or both) directions +void wxWindowBase::Centre(int direction) { - int charWidth = GetCharWidth(); - int charHeight = GetCharHeight(); - wxPoint pt2; - pt2.x = (int) ((pt.x * 4) / charWidth) ; - pt2.y = (int) ((pt.y * 8) / charHeight) ; + // the position/size of the parent window or of the entire screen + wxPoint posParent; + int widthParent, heightParent; - return pt2; + wxWindow *parent = NULL; + + if ( !(direction & wxCENTRE_ON_SCREEN) ) + { + // find the parent to centre this window on: it should be the + // immediate parent for the controls but the top level parent for the + // top level windows (like dialogs) + parent = GetParent(); + if ( IsTopLevel() ) + { + while ( parent && !parent->IsTopLevel() ) + { + parent = parent->GetParent(); + } + } + + // there is no wxTopLevelWindow under wxMotif yet +#ifndef __WXMOTIF__ + // we shouldn't center the dialog on the iconized window: under + // Windows, for example, this places it completely off the screen + if ( parent ) + { + wxTopLevelWindow *winTop = wxDynamicCast(parent, wxTopLevelWindow); + if ( winTop && winTop->IsIconized() ) + { + parent = NULL; + } + } +#endif // __WXMOTIF__ + + // did we find the parent? + if ( !parent ) + { + // no other choice + direction |= wxCENTRE_ON_SCREEN; + } + } + + if ( direction & wxCENTRE_ON_SCREEN ) + { + // centre with respect to the whole screen + wxDisplaySize(&widthParent, &heightParent); + } + else + { + if ( IsTopLevel() ) + { + // centre on the parent + parent->GetSize(&widthParent, &heightParent); + + // adjust to the parents position + posParent = parent->GetPosition(); + } + else + { + // centre inside the parents client rectangle + parent->GetClientSize(&widthParent, &heightParent); + } + } + + int width, height; + GetSize(&width, &height); + + int xNew = wxDefaultCoord, + yNew = wxDefaultCoord; + + if ( direction & wxHORIZONTAL ) + xNew = (widthParent - width)/2; + + if ( direction & wxVERTICAL ) + yNew = (heightParent - height)/2; + + xNew += posParent.x; + yNew += posParent.y; + + // Base size of the visible dimensions of the display + // to take into account the taskbar. And the Mac menu bar at top. + wxRect clientrect = wxGetClientDisplayRect(); + + // NB: in wxMSW, negative position may not neccessary mean "out of screen", + // but it may mean that the window is placed on other than the main + // display. Therefore we only make sure centered window is on the main display + // if the parent is at least partially present here. + if (posParent.x + widthParent >= 0) // if parent is (partially) on the main display + { + if (xNew < clientrect.GetLeft()) + xNew = clientrect.GetLeft(); + else if (xNew + width > clientrect.GetRight()) + xNew = clientrect.GetRight() - width; + } + if (posParent.y + heightParent >= 0) // if parent is (partially) on the main display + { + if (yNew + height > clientrect.GetBottom()) + yNew = clientrect.GetBottom() - height; + + // Make certain that the title bar is initially visible + // always, even if this would push the bottom of the + // dialog off the visible area of the display + if (yNew < clientrect.GetTop()) + yNew = clientrect.GetTop(); + } + + // move the window to this position (keeping the old size but using + // SetSize() and not Move() to allow xNew and/or yNew to be wxDefaultCoord) + SetSize(xNew, yNew, width, height, wxSIZE_ALLOW_MINUS_ONE); } -wxPoint wxWindow::ConvertDialogToPixels(const wxPoint& pt) +// fits the window around the children +void wxWindowBase::Fit() { - int charWidth = GetCharWidth(); - int charHeight = GetCharHeight(); - wxPoint pt2; - pt2.x = (int) ((pt.x * charWidth) / 4) ; - pt2.y = (int) ((pt.y * charHeight) / 8) ; + if ( GetChildren().GetCount() > 0 ) + { + SetClientSize(GetBestSize()); + } + //else: do nothing if we have no children +} - return pt2; +// fits virtual size (ie. scrolled area etc.) around children +void wxWindowBase::FitInside() +{ + if ( GetChildren().GetCount() > 0 ) + { + SetVirtualSize( GetBestVirtualSize() ); + } +} + +// On Mac, scrollbars are explicitly children. +#ifdef __WXMAC__ +static bool wxHasRealChildren(const wxWindowBase* win) +{ + int realChildCount = 0; + + for ( wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst(); + node; + node = node->GetNext() ) + { + wxWindow *win = node->GetData(); + if ( !win->IsTopLevel() && win->IsShown() && !win->IsKindOf(CLASSINFO(wxScrollBar))) + realChildCount ++; + } + return (realChildCount > 0); +} +#endif + +void wxWindowBase::InvalidateBestSize() +{ + m_bestSizeCache = wxDefaultSize; + + // parent's best size calculation may depend on its children's + // best sizes, so let's invalidate it as well to be safe: + if (m_parent) + m_parent->InvalidateBestSize(); +} + +// return the size best suited for the current window +wxSize wxWindowBase::DoGetBestSize() const +{ + if ( m_windowSizer ) + { + return m_windowSizer->GetMinSize(); + } +#if wxUSE_CONSTRAINTS + else if ( m_constraints ) + { + wxConstCast(this, wxWindowBase)->SatisfyConstraints(); + + // our minimal acceptable size is such that all our windows fit inside + int maxX = 0, + maxY = 0; + + for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst(); + node; + node = node->GetNext() ) + { + wxLayoutConstraints *c = node->GetData()->GetConstraints(); + if ( !c ) + { + // it's not normal that we have an unconstrained child, but + // what can we do about it? + continue; + } + + int x = c->right.GetValue(), + y = c->bottom.GetValue(); + + if ( x > maxX ) + maxX = x; + + if ( y > maxY ) + maxY = y; + + // TODO: we must calculate the overlaps somehow, otherwise we + // will never return a size bigger than the current one :-( + } + + return wxSize(maxX, maxY); + } +#endif // wxUSE_CONSTRAINTS + else if ( !GetChildren().empty() +#ifdef __WXMAC__ + && wxHasRealChildren(this) +#endif + ) + { + // our minimal acceptable size is such that all our visible child windows fit inside + int maxX = 0, + maxY = 0; + + for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst(); + node; + node = node->GetNext() ) + { + wxWindow *win = node->GetData(); + if ( win->IsTopLevel() || ( ! win->IsShown() ) +#if wxUSE_STATUSBAR + || wxDynamicCast(win, wxStatusBar) +#endif // wxUSE_STATUSBAR + ) + { + // dialogs and frames lie in different top level windows - + // don't deal with them here; as for the status bars, they + // don't lie in the client area at all + continue; + } + + int wx, wy, ww, wh; + win->GetPosition(&wx, &wy); + + // if the window hadn't been positioned yet, assume that it is in + // the origin + if ( wx == wxDefaultCoord ) + wx = 0; + if ( wy == wxDefaultCoord ) + wy = 0; + + win->GetSize(&ww, &wh); + if ( wx + ww > maxX ) + maxX = wx + ww; + if ( wy + wh > maxY ) + maxY = wy + wh; + } + + // for compatibility with the old versions and because it really looks + // slightly more pretty like this, add a pad + maxX += 7; + maxY += 14; + + return wxSize(maxX, maxY); + } + else // ! has children + { + // for a generic window there is no natural best size - just use either the + // minimum size if there is one, or the current size + if ( GetMinSize().IsFullySpecified() ) + return GetMinSize(); + else + return GetSize(); + } +} + + +wxSize wxWindowBase::GetBestFittingSize() const +{ + // merge the best size with the min size, giving priority to the min size + wxSize min = GetMinSize(); + if (min.x == wxDefaultCoord || min.y == wxDefaultCoord) + { + wxSize best = GetBestSize(); + if (min.x == wxDefaultCoord) min.x = best.x; + if (min.y == wxDefaultCoord) min.y = best.y; + } + return min; +} + + +void wxWindowBase::SetBestFittingSize(const wxSize& size) +{ + // Set the min size to the size passed in. This will usually either be + // wxDefaultSize or the size passed to this window's ctor/Create function. + SetMinSize(size); + + // Merge the size with the best size if needed + wxSize best = GetBestFittingSize(); + + // If the current size doesn't match then change it + if (GetSize() != best) + SetSize(best); +} + + +// by default the origin is not shifted +wxPoint wxWindowBase::GetClientAreaOrigin() const +{ + return wxPoint(0, 0); +} + +// set the min/max size of the window +void wxWindowBase::DoSetSizeHints(int minW, int minH, + int maxW, int maxH, + int WXUNUSED(incW), int WXUNUSED(incH)) +{ + // setting min width greater than max width leads to infinite loops under + // X11 and generally doesn't make any sense, so don't allow it + wxCHECK_RET( (minW == wxDefaultCoord || maxW == wxDefaultCoord || minW <= maxW) && + (minH == wxDefaultCoord || maxH == wxDefaultCoord || minH <= maxH), + _T("min width/height must be less than max width/height!") ); + + m_minWidth = minW; + m_maxWidth = maxW; + m_minHeight = minH; + m_maxHeight = maxH; +} + +void wxWindowBase::SetWindowVariant( wxWindowVariant variant ) +{ + if ( m_windowVariant != variant ) + { + m_windowVariant = variant; + + DoSetWindowVariant(variant); + } +} + +void wxWindowBase::DoSetWindowVariant( wxWindowVariant variant ) +{ + // adjust the font height to correspond to our new variant (notice that + // we're only called if something really changed) + wxFont font = GetFont(); + int size = font.GetPointSize(); + switch ( variant ) + { + case wxWINDOW_VARIANT_NORMAL: + break; + + case wxWINDOW_VARIANT_SMALL: + size *= 3; + size /= 4; + break; + + case wxWINDOW_VARIANT_MINI: + size *= 2; + size /= 3; + break; + + case wxWINDOW_VARIANT_LARGE: + size *= 5; + size /= 4; + break; + + default: + wxFAIL_MSG(_T("unexpected window variant")); + break; + } + + font.SetPointSize(size); + SetFont(font); +} + +void wxWindowBase::SetVirtualSizeHints( int minW, int minH, + int maxW, int maxH ) +{ + m_minVirtualWidth = minW; + m_maxVirtualWidth = maxW; + m_minVirtualHeight = minH; + m_maxVirtualHeight = maxH; +} + +void wxWindowBase::DoSetVirtualSize( int x, int y ) +{ + if ( m_minVirtualWidth != wxDefaultCoord && m_minVirtualWidth > x ) + x = m_minVirtualWidth; + if ( m_maxVirtualWidth != wxDefaultCoord && m_maxVirtualWidth < x ) + x = m_maxVirtualWidth; + if ( m_minVirtualHeight != wxDefaultCoord && m_minVirtualHeight > y ) + y = m_minVirtualHeight; + if ( m_maxVirtualHeight != wxDefaultCoord && m_maxVirtualHeight < y ) + y = m_maxVirtualHeight; + + m_virtualSize = wxSize(x, y); +} + +wxSize wxWindowBase::DoGetVirtualSize() const +{ + wxSize s( GetClientSize() ); + + return wxSize( wxMax( m_virtualSize.GetWidth(), s.GetWidth() ), + wxMax( m_virtualSize.GetHeight(), s.GetHeight() ) ); +} + +// ---------------------------------------------------------------------------- +// show/hide/enable/disable the window +// ---------------------------------------------------------------------------- + +bool wxWindowBase::Show(bool show) +{ + if ( show != m_isShown ) + { + m_isShown = show; + + return true; + } + else + { + return false; + } +} + +bool wxWindowBase::Enable(bool enable) +{ + if ( enable != m_isEnabled ) + { + m_isEnabled = enable; + + return true; + } + else + { + return false; + } +} +// ---------------------------------------------------------------------------- +// RTTI +// ---------------------------------------------------------------------------- + +bool wxWindowBase::IsTopLevel() const +{ + return false; +} + +// ---------------------------------------------------------------------------- +// reparenting the window +// ---------------------------------------------------------------------------- + +void wxWindowBase::AddChild(wxWindowBase *child) +{ + wxCHECK_RET( child, wxT("can't add a NULL child") ); + + // this should never happen and it will lead to a crash later if it does + // because RemoveChild() will remove only one node from the children list + // and the other(s) one(s) will be left with dangling pointers in them + wxASSERT_MSG( !GetChildren().Find((wxWindow*)child), _T("AddChild() called twice") ); + + GetChildren().Append((wxWindow*)child); + child->SetParent(this); +} + +void wxWindowBase::RemoveChild(wxWindowBase *child) +{ + wxCHECK_RET( child, wxT("can't remove a NULL child") ); + + GetChildren().DeleteObject((wxWindow *)child); + child->SetParent(NULL); +} + +bool wxWindowBase::Reparent(wxWindowBase *newParent) +{ + wxWindow *oldParent = GetParent(); + if ( newParent == oldParent ) + { + // nothing done + return false; + } + + // unlink this window from the existing parent. + if ( oldParent ) + { + oldParent->RemoveChild(this); + } + else + { + wxTopLevelWindows.DeleteObject((wxWindow *)this); + } + + // add it to the new one + if ( newParent ) + { + newParent->AddChild(this); + } + else + { + wxTopLevelWindows.Append((wxWindow *)this); + } + + return true; +} + +// ---------------------------------------------------------------------------- +// event handler stuff +// ---------------------------------------------------------------------------- + +void wxWindowBase::PushEventHandler(wxEvtHandler *handler) +{ + wxEvtHandler *handlerOld = GetEventHandler(); + + handler->SetNextHandler(handlerOld); + + if ( handlerOld ) + GetEventHandler()->SetPreviousHandler(handler); + + SetEventHandler(handler); +} + +wxEvtHandler *wxWindowBase::PopEventHandler(bool deleteHandler) +{ + wxEvtHandler *handlerA = GetEventHandler(); + if ( handlerA ) + { + wxEvtHandler *handlerB = handlerA->GetNextHandler(); + handlerA->SetNextHandler((wxEvtHandler *)NULL); + + if ( handlerB ) + handlerB->SetPreviousHandler((wxEvtHandler *)NULL); + SetEventHandler(handlerB); + + if ( deleteHandler ) + { + delete handlerA; + handlerA = (wxEvtHandler *)NULL; + } + } + + return handlerA; +} + +bool wxWindowBase::RemoveEventHandler(wxEvtHandler *handler) +{ + wxCHECK_MSG( handler, false, _T("RemoveEventHandler(NULL) called") ); + + wxEvtHandler *handlerPrev = NULL, + *handlerCur = GetEventHandler(); + while ( handlerCur ) + { + wxEvtHandler *handlerNext = handlerCur->GetNextHandler(); + + if ( handlerCur == handler ) + { + if ( handlerPrev ) + { + handlerPrev->SetNextHandler(handlerNext); + } + else + { + SetEventHandler(handlerNext); + } + + if ( handlerNext ) + { + handlerNext->SetPreviousHandler ( handlerPrev ); + } + + handler->SetNextHandler(NULL); + handler->SetPreviousHandler(NULL); + + return true; + } + + handlerPrev = handlerCur; + handlerCur = handlerNext; + } + + wxFAIL_MSG( _T("where has the event handler gone?") ); + + return false; +} + +// ---------------------------------------------------------------------------- +// colours, fonts &c +// ---------------------------------------------------------------------------- + +void wxWindowBase::InheritAttributes() +{ + const wxWindowBase * const parent = GetParent(); + if ( !parent ) + return; + + // we only inherit attributes which had been explicitly set for the parent + // which ensures that this only happens if the user really wants it and + // not by default which wouldn't make any sense in modern GUIs where the + // controls don't all use the same fonts (nor colours) + if ( parent->m_inheritFont && !m_hasFont ) + SetFont(parent->GetFont()); + + // in addition, there is a possibility to explicitly forbid inheriting + // colours at each class level by overriding ShouldInheritColours() + if ( ShouldInheritColours() ) + { + if ( parent->m_inheritFgCol && !m_hasFgCol ) + SetForegroundColour(parent->GetForegroundColour()); + + if ( parent->m_inheritBgCol && !m_hasBgCol ) + SetBackgroundColour(parent->GetBackgroundColour()); + } +} + +/* static */ wxVisualAttributes +wxWindowBase::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) +{ + // it is important to return valid values for all attributes from here, + // GetXXX() below rely on this + wxVisualAttributes attrs; + attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT); + attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT); + attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE); + + return attrs; +} + +wxColour wxWindowBase::GetBackgroundColour() const +{ + if ( !m_backgroundColour.Ok() ) + { + wxASSERT_MSG( !m_hasBgCol, _T("we have invalid explicit bg colour?") ); + + // get our default background colour + 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 + // 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) + if ( !colBg.Ok() ) + colBg = GetClassDefaultAttributes().colBg; + + return colBg; + } + else + return m_backgroundColour; +} + +wxColour wxWindowBase::GetForegroundColour() const +{ + // logic is the same as above + if ( !m_hasFgCol && !m_foregroundColour.Ok() ) + { + wxASSERT_MSG( !m_hasFgCol, _T("we have invalid explicit fg colour?") ); + + wxColour colFg = GetDefaultAttributes().colFg; + + if ( !colFg.Ok() ) + colFg = GetClassDefaultAttributes().colFg; + + return colFg; + } + else + return m_foregroundColour; +} + +bool wxWindowBase::SetBackgroundColour( const wxColour &colour ) +{ + if ( colour == m_backgroundColour ) + return false; + + m_hasBgCol = colour.Ok(); + m_inheritBgCol = m_hasBgCol; + m_backgroundColour = colour; + SetThemeEnabled( !m_hasBgCol && !m_foregroundColour.Ok() ); + return true; +} + +bool wxWindowBase::SetForegroundColour( const wxColour &colour ) +{ + if (colour == m_foregroundColour ) + return false; + + m_hasFgCol = colour.Ok(); + m_inheritFgCol = m_hasFgCol; + m_foregroundColour = colour; + SetThemeEnabled( !m_hasFgCol && !m_backgroundColour.Ok() ); + return true; +} + +bool wxWindowBase::SetCursor(const wxCursor& cursor) +{ + // setting an invalid cursor is ok, it means that we don't have any special + // cursor + if ( m_cursor == cursor ) + { + // no change + return false; + } + + m_cursor = cursor; + + return true; +} + +wxFont wxWindowBase::GetFont() const +{ + // logic is the same as in GetBackgroundColour() + if ( !m_font.Ok() ) + { + wxASSERT_MSG( !m_hasFont, _T("we have invalid explicit font?") ); + + wxFont font = GetDefaultAttributes().font; + if ( !font.Ok() ) + font = GetClassDefaultAttributes().font; + + return font; + } + else + return m_font; +} + +bool wxWindowBase::SetFont(const wxFont& font) +{ + if ( font == m_font ) + { + // no change + return false; + } + + m_font = font; + m_hasFont = font.Ok(); + m_inheritFont = m_hasFont; + + InvalidateBestSize(); + + return true; +} + +#if wxUSE_PALETTE + +void wxWindowBase::SetPalette(const wxPalette& pal) +{ + m_hasCustomPalette = true; + m_palette = pal; + + // VZ: can anyone explain me what do we do here? + wxWindowDC d((wxWindow *) this); + d.SetPalette(pal); +} + +wxWindow *wxWindowBase::GetAncestorWithCustomPalette() const +{ + wxWindow *win = (wxWindow *)this; + while ( win && !win->HasCustomPalette() ) + { + win = win->GetParent(); + } + + return win; +} + +#endif // wxUSE_PALETTE + +#if wxUSE_CARET +void wxWindowBase::SetCaret(wxCaret *caret) +{ + if ( m_caret ) + { + delete m_caret; + } + + m_caret = caret; + + if ( m_caret ) + { + wxASSERT_MSG( m_caret->GetWindow() == this, + wxT("caret should be created associated to this window") ); + } +} +#endif // wxUSE_CARET + +#if wxUSE_VALIDATORS +// ---------------------------------------------------------------------------- +// validators +// ---------------------------------------------------------------------------- + +void wxWindowBase::SetValidator(const wxValidator& validator) +{ + if ( m_windowValidator ) + delete m_windowValidator; + + m_windowValidator = (wxValidator *)validator.Clone(); + + if ( m_windowValidator ) + m_windowValidator->SetWindow(this); +} +#endif // wxUSE_VALIDATORS + +// ---------------------------------------------------------------------------- +// update region stuff +// ---------------------------------------------------------------------------- + +wxRect wxWindowBase::GetUpdateClientRect() const +{ + wxRegion rgnUpdate = GetUpdateRegion(); + rgnUpdate.Intersect(GetClientRect()); + wxRect rectUpdate = rgnUpdate.GetBox(); + wxPoint ptOrigin = GetClientAreaOrigin(); + rectUpdate.x -= ptOrigin.x; + rectUpdate.y -= ptOrigin.y; + + return rectUpdate; +} + +bool wxWindowBase::IsExposed(int x, int y) const +{ + return m_updateRegion.Contains(x, y) != wxOutRegion; +} + +bool wxWindowBase::IsExposed(int x, int y, int w, int h) const +{ + return m_updateRegion.Contains(x, y, w, h) != wxOutRegion; +} + +void wxWindowBase::ClearBackground() +{ + // wxGTK uses its own version, no need to add never used code +#ifndef __WXGTK__ + wxClientDC dc((wxWindow *)this); + wxBrush brush(GetBackgroundColour(), wxSOLID); + dc.SetBackground(brush); + dc.Clear(); +#endif // __WXGTK__ +} + +// ---------------------------------------------------------------------------- +// find child window by id or name +// ---------------------------------------------------------------------------- + +wxWindow *wxWindowBase::FindWindow( long id ) +{ + if ( id == m_windowId ) + return (wxWindow *)this; + + wxWindowBase *res = (wxWindow *)NULL; + wxWindowList::compatibility_iterator node; + for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() ) + { + wxWindowBase *child = node->GetData(); + res = child->FindWindow( id ); + } + + return (wxWindow *)res; +} + +wxWindow *wxWindowBase::FindWindow( const wxString& name ) +{ + if ( name == m_windowName ) + return (wxWindow *)this; + + wxWindowBase *res = (wxWindow *)NULL; + wxWindowList::compatibility_iterator node; + for ( node = m_children.GetFirst(); node && !res; node = node->GetNext() ) + { + wxWindow *child = node->GetData(); + res = child->FindWindow(name); + } + + return (wxWindow *)res; +} + + +// find any window by id or name or label: If parent is non-NULL, look through +// children for a label or title matching the specified string. If NULL, look +// through all top-level windows. +// +// to avoid duplicating code we reuse the same helper function but with +// different comparators + +typedef bool (*wxFindWindowCmp)(const wxWindow *win, + const wxString& label, long id); + +static +bool wxFindWindowCmpLabels(const wxWindow *win, const wxString& label, + long WXUNUSED(id)) +{ + return win->GetLabel() == label; +} + +static +bool wxFindWindowCmpNames(const wxWindow *win, const wxString& label, + long WXUNUSED(id)) +{ + return win->GetName() == label; +} + +static +bool wxFindWindowCmpIds(const wxWindow *win, const wxString& WXUNUSED(label), + long id) +{ + return win->GetId() == id; +} + +// recursive helper for the FindWindowByXXX() functions +static +wxWindow *wxFindWindowRecursively(const wxWindow *parent, + const wxString& label, + long id, + wxFindWindowCmp cmp) +{ + if ( parent ) + { + // see if this is the one we're looking for + if ( (*cmp)(parent, label, id) ) + return (wxWindow *)parent; + + // It wasn't, so check all its children + for ( wxWindowList::compatibility_iterator node = parent->GetChildren().GetFirst(); + node; + node = node->GetNext() ) + { + // recursively check each child + wxWindow *win = (wxWindow *)node->GetData(); + wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp); + if (retwin) + return retwin; + } + } + + // Not found + return NULL; +} + +// helper for FindWindowByXXX() +static +wxWindow *wxFindWindowHelper(const wxWindow *parent, + const wxString& label, + long id, + wxFindWindowCmp cmp) +{ + if ( parent ) + { + // just check parent and all its children + return wxFindWindowRecursively(parent, label, id, cmp); + } + + // start at very top of wx's windows + for ( wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst(); + node; + node = node->GetNext() ) + { + // recursively check each window & its children + wxWindow *win = node->GetData(); + wxWindow *retwin = wxFindWindowRecursively(win, label, id, cmp); + if (retwin) + return retwin; + } + + return NULL; +} + +/* static */ +wxWindow * +wxWindowBase::FindWindowByLabel(const wxString& title, const wxWindow *parent) +{ + return wxFindWindowHelper(parent, title, 0, wxFindWindowCmpLabels); +} + +/* static */ +wxWindow * +wxWindowBase::FindWindowByName(const wxString& title, const wxWindow *parent) +{ + wxWindow *win = wxFindWindowHelper(parent, title, 0, wxFindWindowCmpNames); + + if ( !win ) + { + // fall back to the label + win = FindWindowByLabel(title, parent); + } + + return win; +} + +/* static */ +wxWindow * +wxWindowBase::FindWindowById( long id, const wxWindow* parent ) +{ + return wxFindWindowHelper(parent, _T(""), id, wxFindWindowCmpIds); +} + +// ---------------------------------------------------------------------------- +// dialog oriented functions +// ---------------------------------------------------------------------------- + +void wxWindowBase::MakeModal(bool modal) +{ + // Disable all other windows + if ( IsTopLevel() ) + { + wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst(); + while (node) + { + wxWindow *win = node->GetData(); + if (win != this) + win->Enable(!modal); + + node = node->GetNext(); + } + } +} + +bool wxWindowBase::Validate() +{ +#if wxUSE_VALIDATORS + bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0; + + wxWindowList::compatibility_iterator node; + for ( node = m_children.GetFirst(); node; node = node->GetNext() ) + { + wxWindowBase *child = node->GetData(); + wxValidator *validator = child->GetValidator(); + if ( validator && !validator->Validate((wxWindow *)this) ) + { + return false; + } + + if ( recurse && !child->Validate() ) + { + return false; + } + } +#endif // wxUSE_VALIDATORS + + return true; +} + +bool wxWindowBase::TransferDataToWindow() +{ +#if wxUSE_VALIDATORS + bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0; + + wxWindowList::compatibility_iterator node; + for ( node = m_children.GetFirst(); node; node = node->GetNext() ) + { + wxWindowBase *child = node->GetData(); + wxValidator *validator = child->GetValidator(); + if ( validator && !validator->TransferToWindow() ) + { + wxLogWarning(_("Could not transfer data to window")); +#if wxUSE_LOG + wxLog::FlushActive(); +#endif // wxUSE_LOG + + return false; + } + + if ( recurse ) + { + if ( !child->TransferDataToWindow() ) + { + // warning already given + return false; + } + } + } +#endif // wxUSE_VALIDATORS + + return true; +} + +bool wxWindowBase::TransferDataFromWindow() +{ +#if wxUSE_VALIDATORS + bool recurse = (GetExtraStyle() & wxWS_EX_VALIDATE_RECURSIVELY) != 0; + + wxWindowList::compatibility_iterator node; + for ( node = m_children.GetFirst(); node; node = node->GetNext() ) + { + wxWindow *child = node->GetData(); + wxValidator *validator = child->GetValidator(); + if ( validator && !validator->TransferFromWindow() ) + { + // nop warning here because the application is supposed to give + // one itself - we don't know here what might have gone wrongly + + return false; + } + + if ( recurse ) + { + if ( !child->TransferDataFromWindow() ) + { + // warning already given + return false; + } + } + } +#endif // wxUSE_VALIDATORS + + return true; +} + +void wxWindowBase::InitDialog() +{ + wxInitDialogEvent event(GetId()); + event.SetEventObject( this ); + GetEventHandler()->ProcessEvent(event); +} + +// ---------------------------------------------------------------------------- +// context-sensitive help support +// ---------------------------------------------------------------------------- + +#if wxUSE_HELP + +// associate this help text with this window +void wxWindowBase::SetHelpText(const wxString& text) +{ + wxHelpProvider *helpProvider = wxHelpProvider::Get(); + if ( helpProvider ) + { + helpProvider->AddHelp(this, text); + } +} + +// associate this help text with all windows with the same id as this +// one +void wxWindowBase::SetHelpTextForId(const wxString& text) +{ + wxHelpProvider *helpProvider = wxHelpProvider::Get(); + if ( helpProvider ) + { + helpProvider->AddHelp(GetId(), text); + } +} + +// get the help string associated with this window (may be empty) +wxString wxWindowBase::GetHelpText() const +{ + wxString text; + wxHelpProvider *helpProvider = wxHelpProvider::Get(); + if ( helpProvider ) + { + text = helpProvider->GetHelp(this); + } + + return text; +} + +// show help for this window +void wxWindowBase::OnHelp(wxHelpEvent& event) +{ + wxHelpProvider *helpProvider = wxHelpProvider::Get(); + if ( helpProvider ) + { + if ( helpProvider->ShowHelp(this) ) + { + // skip the event.Skip() below + return; + } + } + + event.Skip(); +} + +#endif // wxUSE_HELP + +// ---------------------------------------------------------------------------- +// tooltipsroot.Replace("\\", "/"); +// ---------------------------------------------------------------------------- + +#if wxUSE_TOOLTIPS + +void wxWindowBase::SetToolTip( const wxString &tip ) +{ + // don't create the new tooltip if we already have one + if ( m_tooltip ) + { + m_tooltip->SetTip( tip ); + } + else + { + SetToolTip( new wxToolTip( tip ) ); + } + + // setting empty tooltip text does not remove the tooltip any more - use + // SetToolTip((wxToolTip *)NULL) for this +} + +void wxWindowBase::DoSetToolTip(wxToolTip *tooltip) +{ + if ( m_tooltip ) + delete m_tooltip; + + m_tooltip = tooltip; +} + +#endif // wxUSE_TOOLTIPS + +// ---------------------------------------------------------------------------- +// constraints and sizers +// ---------------------------------------------------------------------------- + +#if wxUSE_CONSTRAINTS + +void wxWindowBase::SetConstraints( wxLayoutConstraints *constraints ) +{ + if ( m_constraints ) + { + UnsetConstraints(m_constraints); + delete m_constraints; + } + m_constraints = constraints; + if ( m_constraints ) + { + // Make sure other windows know they're part of a 'meaningful relationship' + if ( m_constraints->left.GetOtherWindow() && (m_constraints->left.GetOtherWindow() != this) ) + m_constraints->left.GetOtherWindow()->AddConstraintReference(this); + if ( m_constraints->top.GetOtherWindow() && (m_constraints->top.GetOtherWindow() != this) ) + m_constraints->top.GetOtherWindow()->AddConstraintReference(this); + if ( m_constraints->right.GetOtherWindow() && (m_constraints->right.GetOtherWindow() != this) ) + m_constraints->right.GetOtherWindow()->AddConstraintReference(this); + if ( m_constraints->bottom.GetOtherWindow() && (m_constraints->bottom.GetOtherWindow() != this) ) + m_constraints->bottom.GetOtherWindow()->AddConstraintReference(this); + if ( m_constraints->width.GetOtherWindow() && (m_constraints->width.GetOtherWindow() != this) ) + m_constraints->width.GetOtherWindow()->AddConstraintReference(this); + if ( m_constraints->height.GetOtherWindow() && (m_constraints->height.GetOtherWindow() != this) ) + m_constraints->height.GetOtherWindow()->AddConstraintReference(this); + if ( m_constraints->centreX.GetOtherWindow() && (m_constraints->centreX.GetOtherWindow() != this) ) + m_constraints->centreX.GetOtherWindow()->AddConstraintReference(this); + if ( m_constraints->centreY.GetOtherWindow() && (m_constraints->centreY.GetOtherWindow() != this) ) + m_constraints->centreY.GetOtherWindow()->AddConstraintReference(this); + } +} + +// This removes any dangling pointers to this window in other windows' +// constraintsInvolvedIn lists. +void wxWindowBase::UnsetConstraints(wxLayoutConstraints *c) +{ + if ( c ) + { + if ( c->left.GetOtherWindow() && (c->top.GetOtherWindow() != this) ) + c->left.GetOtherWindow()->RemoveConstraintReference(this); + if ( c->top.GetOtherWindow() && (c->top.GetOtherWindow() != this) ) + c->top.GetOtherWindow()->RemoveConstraintReference(this); + if ( c->right.GetOtherWindow() && (c->right.GetOtherWindow() != this) ) + c->right.GetOtherWindow()->RemoveConstraintReference(this); + if ( c->bottom.GetOtherWindow() && (c->bottom.GetOtherWindow() != this) ) + c->bottom.GetOtherWindow()->RemoveConstraintReference(this); + if ( c->width.GetOtherWindow() && (c->width.GetOtherWindow() != this) ) + c->width.GetOtherWindow()->RemoveConstraintReference(this); + if ( c->height.GetOtherWindow() && (c->height.GetOtherWindow() != this) ) + c->height.GetOtherWindow()->RemoveConstraintReference(this); + if ( c->centreX.GetOtherWindow() && (c->centreX.GetOtherWindow() != this) ) + c->centreX.GetOtherWindow()->RemoveConstraintReference(this); + if ( c->centreY.GetOtherWindow() && (c->centreY.GetOtherWindow() != this) ) + c->centreY.GetOtherWindow()->RemoveConstraintReference(this); + } +} + +// Back-pointer to other windows we're involved with, so if we delete this +// window, we must delete any constraints we're involved with. +void wxWindowBase::AddConstraintReference(wxWindowBase *otherWin) +{ + if ( !m_constraintsInvolvedIn ) + m_constraintsInvolvedIn = new wxWindowList; + if ( !m_constraintsInvolvedIn->Find((wxWindow *)otherWin) ) + m_constraintsInvolvedIn->Append((wxWindow *)otherWin); +} + +// REMOVE back-pointer to other windows we're involved with. +void wxWindowBase::RemoveConstraintReference(wxWindowBase *otherWin) +{ + if ( m_constraintsInvolvedIn ) + m_constraintsInvolvedIn->DeleteObject((wxWindow *)otherWin); +} + +// Reset any constraints that mention this window +void wxWindowBase::DeleteRelatedConstraints() +{ + if ( m_constraintsInvolvedIn ) + { + wxWindowList::compatibility_iterator node = m_constraintsInvolvedIn->GetFirst(); + while (node) + { + wxWindow *win = node->GetData(); + wxLayoutConstraints *constr = win->GetConstraints(); + + // Reset any constraints involving this window + if ( constr ) + { + constr->left.ResetIfWin(this); + constr->top.ResetIfWin(this); + constr->right.ResetIfWin(this); + constr->bottom.ResetIfWin(this); + constr->width.ResetIfWin(this); + constr->height.ResetIfWin(this); + constr->centreX.ResetIfWin(this); + constr->centreY.ResetIfWin(this); + } + + wxWindowList::compatibility_iterator next = node->GetNext(); + m_constraintsInvolvedIn->Erase(node); + node = next; + } + + delete m_constraintsInvolvedIn; + m_constraintsInvolvedIn = (wxWindowList *) NULL; + } +} + +#endif // wxUSE_CONSTRAINTS + +void wxWindowBase::SetSizer(wxSizer *sizer, bool deleteOld) +{ + if ( sizer == m_windowSizer) + return; + + if ( deleteOld ) + delete m_windowSizer; + + m_windowSizer = sizer; + + SetAutoLayout( sizer != NULL ); +} + +void wxWindowBase::SetSizerAndFit(wxSizer *sizer, bool deleteOld) +{ + SetSizer( sizer, deleteOld ); + sizer->SetSizeHints( (wxWindow*) this ); +} + + +void wxWindowBase::SetContainingSizer(wxSizer* sizer) +{ + // adding a window to a sizer twice is going to result in fatal and + // hard to debug problems later because when deleting the second + // associated wxSizerItem we're going to dereference a dangling + // pointer; so try to detect this as early as possible + wxASSERT_MSG( !sizer || m_containingSizer != sizer, + _T("Adding a window to the same sizer twice?") ); + + m_containingSizer = sizer; +} + +#if wxUSE_CONSTRAINTS + +void wxWindowBase::SatisfyConstraints() +{ + wxLayoutConstraints *constr = GetConstraints(); + bool wasOk = constr && constr->AreSatisfied(); + + ResetConstraints(); // Mark all constraints as unevaluated + + int noChanges = 1; + + // if we're a top level panel (i.e. our parent is frame/dialog), our + // own constraints will never be satisfied any more unless we do it + // here + if ( wasOk ) + { + while ( noChanges > 0 ) + { + LayoutPhase1(&noChanges); + } + } + + LayoutPhase2(&noChanges); +} + +#endif // wxUSE_CONSTRAINTS + +bool wxWindowBase::Layout() +{ + // If there is a sizer, use it instead of the constraints + if ( GetSizer() ) + { + int w, h; + GetVirtualSize(&w, &h); + GetSizer()->SetDimension( 0, 0, w, h ); + } +#if wxUSE_CONSTRAINTS + else + { + SatisfyConstraints(); // Find the right constraints values + SetConstraintSizes(); // Recursively set the real window sizes + } +#endif + + return true; +} + +#if wxUSE_CONSTRAINTS + +// first phase of the constraints evaluation: set our own constraints +bool wxWindowBase::LayoutPhase1(int *noChanges) +{ + wxLayoutConstraints *constr = GetConstraints(); + + return !constr || constr->SatisfyConstraints(this, noChanges); +} + +// second phase: set the constraints for our children +bool wxWindowBase::LayoutPhase2(int *noChanges) +{ + *noChanges = 0; + + // Layout children + DoPhase(1); + + // Layout grand children + DoPhase(2); + + return true; +} + +// Do a phase of evaluating child constraints +bool wxWindowBase::DoPhase(int phase) +{ + // the list containing the children for which the constraints are already + // set correctly + wxWindowList succeeded; + + // the max number of iterations we loop before concluding that we can't set + // the constraints + static const int maxIterations = 500; + + for ( int noIterations = 0; noIterations < maxIterations; noIterations++ ) + { + int noChanges = 0; + + // loop over all children setting their constraints + for ( wxWindowList::compatibility_iterator node = GetChildren().GetFirst(); + node; + node = node->GetNext() ) + { + wxWindow *child = node->GetData(); + if ( child->IsTopLevel() ) + { + // top level children are not inside our client area + continue; + } + + if ( !child->GetConstraints() || succeeded.Find(child) ) + { + // this one is either already ok or nothing we can do about it + continue; + } + + int tempNoChanges = 0; + bool success = phase == 1 ? child->LayoutPhase1(&tempNoChanges) + : child->LayoutPhase2(&tempNoChanges); + noChanges += tempNoChanges; + + if ( success ) + { + succeeded.Append(child); + } + } + + if ( !noChanges ) + { + // constraints are set + break; + } + } + + return true; +} + +void wxWindowBase::ResetConstraints() +{ + wxLayoutConstraints *constr = GetConstraints(); + if ( constr ) + { + constr->left.SetDone(false); + constr->top.SetDone(false); + constr->right.SetDone(false); + constr->bottom.SetDone(false); + constr->width.SetDone(false); + constr->height.SetDone(false); + constr->centreX.SetDone(false); + constr->centreY.SetDone(false); + } + + wxWindowList::compatibility_iterator node = GetChildren().GetFirst(); + while (node) + { + wxWindow *win = node->GetData(); + if ( !win->IsTopLevel() ) + win->ResetConstraints(); + node = node->GetNext(); + } +} + +// Need to distinguish between setting the 'fake' size for windows and sizers, +// and setting the real values. +void wxWindowBase::SetConstraintSizes(bool recurse) +{ + wxLayoutConstraints *constr = GetConstraints(); + if ( constr && constr->AreSatisfied() ) + { + int x = constr->left.GetValue(); + int y = constr->top.GetValue(); + int w = constr->width.GetValue(); + int h = constr->height.GetValue(); + + if ( (constr->width.GetRelationship() != wxAsIs ) || + (constr->height.GetRelationship() != wxAsIs) ) + { + SetSize(x, y, w, h); + } + else + { + // If we don't want to resize this window, just move it... + Move(x, y); + } + } + else if ( constr ) + { + wxLogDebug(wxT("Constraints not satisfied for %s named '%s'."), + GetClassInfo()->GetClassName(), + GetName().c_str()); + } + + if ( recurse ) + { + wxWindowList::compatibility_iterator node = GetChildren().GetFirst(); + while (node) + { + wxWindow *win = node->GetData(); + if ( !win->IsTopLevel() && win->GetConstraints() ) + win->SetConstraintSizes(); + node = node->GetNext(); + } + } +} + +// Only set the size/position of the constraint (if any) +void wxWindowBase::SetSizeConstraint(int x, int y, int w, int h) +{ + wxLayoutConstraints *constr = GetConstraints(); + if ( constr ) + { + if ( x != wxDefaultCoord ) + { + constr->left.SetValue(x); + constr->left.SetDone(true); + } + if ( y != wxDefaultCoord ) + { + constr->top.SetValue(y); + constr->top.SetDone(true); + } + if ( w != wxDefaultCoord ) + { + constr->width.SetValue(w); + constr->width.SetDone(true); + } + if ( h != wxDefaultCoord ) + { + constr->height.SetValue(h); + constr->height.SetDone(true); + } + } +} + +void wxWindowBase::MoveConstraint(int x, int y) +{ + wxLayoutConstraints *constr = GetConstraints(); + if ( constr ) + { + if ( x != wxDefaultCoord ) + { + constr->left.SetValue(x); + constr->left.SetDone(true); + } + if ( y != wxDefaultCoord ) + { + constr->top.SetValue(y); + constr->top.SetDone(true); + } + } +} + +void wxWindowBase::GetSizeConstraint(int *w, int *h) const +{ + wxLayoutConstraints *constr = GetConstraints(); + if ( constr ) + { + *w = constr->width.GetValue(); + *h = constr->height.GetValue(); + } + else + GetSize(w, h); +} + +void wxWindowBase::GetClientSizeConstraint(int *w, int *h) const +{ + wxLayoutConstraints *constr = GetConstraints(); + if ( constr ) + { + *w = constr->width.GetValue(); + *h = constr->height.GetValue(); + } + else + GetClientSize(w, h); +} + +void wxWindowBase::GetPositionConstraint(int *x, int *y) const +{ + wxLayoutConstraints *constr = GetConstraints(); + if ( constr ) + { + *x = constr->left.GetValue(); + *y = constr->top.GetValue(); + } + else + GetPosition(x, y); +} + +#endif // wxUSE_CONSTRAINTS + +void wxWindowBase::AdjustForParentClientOrigin(int& x, int& y, int sizeFlags) const +{ + // don't do it for the dialogs/frames - they float independently of their + // parent + if ( !IsTopLevel() ) + { + wxWindow *parent = GetParent(); + if ( !(sizeFlags & wxSIZE_NO_ADJUSTMENTS) && parent ) + { + wxPoint pt(parent->GetClientAreaOrigin()); + x += pt.x; + y += pt.y; + } + } +} + +// ---------------------------------------------------------------------------- +// do Update UI processing for child controls +// ---------------------------------------------------------------------------- + +void wxWindowBase::UpdateWindowUI(long flags) +{ + wxUpdateUIEvent event(GetId()); + event.m_eventObject = this; + + if ( GetEventHandler()->ProcessEvent(event) ) + { + DoUpdateWindowUI(event); + } + + if (flags & wxUPDATE_UI_RECURSE) + { + wxWindowList::compatibility_iterator node = GetChildren().GetFirst(); + while (node) + { + wxWindow* child = (wxWindow*) node->GetData(); + child->UpdateWindowUI(flags); + node = node->GetNext(); + } + } +} + +// do the window-specific processing after processing the update event +// TODO: take specific knowledge out of this function and +// put in each control's base class. Unfortunately we don't +// yet have base implementation files for wxCheckBox and wxRadioButton. +void wxWindowBase::DoUpdateWindowUI(wxUpdateUIEvent& event) +{ + if ( event.GetSetEnabled() ) + Enable(event.GetEnabled()); + +#if wxUSE_CONTROLS + if ( event.GetSetText() ) + { + wxControl *control = wxDynamicCastThis(wxControl); + if ( control ) + { + if ( event.GetText() != control->GetLabel() ) + control->SetLabel(event.GetText()); + } + } +#endif // wxUSE_CONTROLS + + if ( event.GetSetChecked() ) + { +#if wxUSE_CHECKBOX + wxCheckBox *checkbox = wxDynamicCastThis(wxCheckBox); + if ( checkbox ) + { + checkbox->SetValue(event.GetChecked()); + } +#endif // wxUSE_CHECKBOX + +#if wxUSE_RADIOBTN + wxRadioButton *radiobtn = wxDynamicCastThis(wxRadioButton); + if ( radiobtn ) + { + radiobtn->SetValue(event.GetChecked()); + } +#endif // wxUSE_RADIOBTN + } +} + +#if 0 +// call internal idle recursively +// may be obsolete (wait until OnIdle scheme stabilises) +void wxWindowBase::ProcessInternalIdle() +{ + OnInternalIdle(); + + wxWindowList::compatibility_iterator node = GetChildren().GetFirst(); + while (node) + { + wxWindow *child = node->GetData(); + child->ProcessInternalIdle(); + node = node->GetNext(); + } +} +#endif + +// ---------------------------------------------------------------------------- +// dialog units translations +// ---------------------------------------------------------------------------- + +wxPoint wxWindowBase::ConvertPixelsToDialog(const wxPoint& pt) +{ + int charWidth = GetCharWidth(); + int charHeight = GetCharHeight(); + wxPoint pt2 = wxDefaultPosition; + if (pt.x != wxDefaultCoord) + pt2.x = (int) ((pt.x * 4) / charWidth); + if (pt.y != wxDefaultCoord) + pt2.y = (int) ((pt.y * 8) / charHeight); + + return pt2; +} + +wxPoint wxWindowBase::ConvertDialogToPixels(const wxPoint& pt) +{ + int charWidth = GetCharWidth(); + int charHeight = GetCharHeight(); + wxPoint pt2 = wxDefaultPosition; + if (pt.x != wxDefaultCoord) + pt2.x = (int) ((pt.x * charWidth) / 4); + if (pt.y != wxDefaultCoord) + pt2.y = (int) ((pt.y * charHeight) / 8); + + return pt2; +} + +// ---------------------------------------------------------------------------- +// event handlers +// ---------------------------------------------------------------------------- + +// propagate the colour change event to the subwindows +void wxWindowBase::OnSysColourChanged(wxSysColourChangedEvent& event) +{ + wxWindowList::compatibility_iterator node = GetChildren().GetFirst(); + while ( node ) + { + // Only propagate to non-top-level windows + wxWindow *win = node->GetData(); + if ( !win->IsTopLevel() ) + { + wxSysColourChangedEvent event2; + event.m_eventObject = win; + win->GetEventHandler()->ProcessEvent(event2); + } + + node = node->GetNext(); + } + + Refresh(); +} + +// the default action is to populate dialog with data when it's created, +// and nudge the UI into displaying itself correctly in case +// we've turned the wxUpdateUIEvents frequency down low. +void wxWindowBase::OnInitDialog( wxInitDialogEvent &WXUNUSED(event) ) +{ + TransferDataToWindow(); + + // Update the UI at this point + UpdateWindowUI(wxUPDATE_UI_RECURSE); +} + +// process Ctrl-Alt-mclick +void wxWindowBase::OnMiddleClick( wxMouseEvent& event ) +{ +#if wxUSE_MSGDLG + if ( event.ControlDown() && event.AltDown() ) + { + // don't translate these strings + wxString port; + +#ifdef __WXUNIVERSAL__ + port = _T("Univ/"); +#endif // __WXUNIVERSAL__ + + switch ( wxGetOsVersion() ) + { + case wxMOTIF_X: port += _T("Motif"); break; + case wxMAC: + case wxMAC_DARWIN: port += _T("Mac"); break; + case wxBEOS: port += _T("BeOS"); break; + case wxGTK: + case wxGTK_WIN32: + case wxGTK_OS2: + case wxGTK_BEOS: port += _T("GTK"); break; + case wxWINDOWS: + case wxPENWINDOWS: + case wxWINDOWS_NT: + case wxWIN32S: + case wxWIN95: + case wxWIN386: port += _T("MS Windows"); break; + case wxMGL_UNIX: + case wxMGL_X: + case wxMGL_WIN32: + case wxMGL_OS2: port += _T("MGL"); break; + case wxWINDOWS_OS2: + case wxOS2_PM: port += _T("OS/2"); break; + default: port += _T("unknown"); break; + } + + wxMessageBox(wxString::Format( + _T( + " wxWidgets Library (%s port)\nVersion %u.%u.%u%s%s, compiled at %s %s\n Copyright (c) 1995-2004 wxWidgets team" + ), + port.c_str(), + wxMAJOR_VERSION, + wxMINOR_VERSION, + wxRELEASE_NUMBER, +#if wxUSE_UNICODE + L" (Unicode)", +#else + "", +#endif +#ifdef __WXDEBUG__ + _T(" Debug build"), +#else + _T(""), +#endif + __TDATE__, + __TTIME__ + ), + _T("wxWidgets information"), + wxICON_INFORMATION | wxOK, + (wxWindow *)this); + } + else +#endif // wxUSE_MSGDLG + { + event.Skip(); + } +} + +// ---------------------------------------------------------------------------- +// accessibility +// ---------------------------------------------------------------------------- + +#if wxUSE_ACCESSIBILITY +void wxWindowBase::SetAccessible(wxAccessible* accessible) +{ + if (m_accessible && (accessible != m_accessible)) + delete m_accessible; + m_accessible = accessible; + if (m_accessible) + m_accessible->SetWindow((wxWindow*) this); +} + +// Returns the accessible object, creating if necessary. +wxAccessible* wxWindowBase::GetOrCreateAccessible() +{ + if (!m_accessible) + m_accessible = CreateAccessible(); + return m_accessible; +} + +// Override to create a specific accessible object. +wxAccessible* wxWindowBase::CreateAccessible() +{ + return new wxWindowAccessible((wxWindow*) this); +} + +#endif + +#if !wxUSE_STL +// ---------------------------------------------------------------------------- +// list classes implementation +// ---------------------------------------------------------------------------- + +void wxWindowListNode::DeleteData() +{ + delete (wxWindow *)GetData(); +} +#endif + +// ---------------------------------------------------------------------------- +// borders +// ---------------------------------------------------------------------------- + +wxBorder wxWindowBase::GetBorder(long flags) const +{ + wxBorder border = (wxBorder)(flags & wxBORDER_MASK); + if ( border == wxBORDER_DEFAULT ) + { + border = GetDefaultBorder(); + } + + return border; +} + +wxBorder wxWindowBase::GetDefaultBorder() const +{ + return wxBORDER_NONE; +} + +// ---------------------------------------------------------------------------- +// hit testing +// ---------------------------------------------------------------------------- + +wxHitTest wxWindowBase::DoHitTest(wxCoord x, wxCoord y) const +{ + // here we just check if the point is inside the window or not + + // check the top and left border first + bool outside = x < 0 || y < 0; + if ( !outside ) + { + // check the right and bottom borders too + wxSize size = GetSize(); + outside = x >= size.x || y >= size.y; + } + + return outside ? wxHT_WINDOW_OUTSIDE : wxHT_WINDOW_INSIDE; +} + +// ---------------------------------------------------------------------------- +// mouse capture +// ---------------------------------------------------------------------------- + +struct WXDLLEXPORT wxWindowNext +{ + wxWindow *win; + wxWindowNext *next; +} *wxWindowBase::ms_winCaptureNext = NULL; + +void wxWindowBase::CaptureMouse() +{ + wxLogTrace(_T("mousecapture"), _T("CaptureMouse(%p)"), this); + + wxWindow *winOld = GetCapture(); + if ( winOld ) + { + ((wxWindowBase*) winOld)->DoReleaseMouse(); + + // save it on stack + wxWindowNext *item = new wxWindowNext; + item->win = winOld; + item->next = ms_winCaptureNext; + ms_winCaptureNext = item; + } + //else: no mouse capture to save + + DoCaptureMouse(); +} + +void wxWindowBase::ReleaseMouse() +{ + wxLogTrace(_T("mousecapture"), _T("ReleaseMouse(%p)"), this); + + wxASSERT_MSG( GetCapture() == this, wxT("attempt to release mouse, but this window hasn't captured it") ); + + DoReleaseMouse(); + + if ( ms_winCaptureNext ) + { + ((wxWindowBase*)ms_winCaptureNext->win)->DoCaptureMouse(); + + wxWindowNext *item = ms_winCaptureNext; + ms_winCaptureNext = item->next; + delete item; + } + //else: stack is empty, no previous capture + + wxLogTrace(_T("mousecapture"), + (const wxChar *) _T("After ReleaseMouse() mouse is captured by %p"), + GetCapture()); +} + +#if wxUSE_HOTKEY + +bool +wxWindowBase::RegisterHotKey(int WXUNUSED(hotkeyId), + int WXUNUSED(modifiers), + int WXUNUSED(keycode)) +{ + // not implemented + return false; +} + +bool wxWindowBase::UnregisterHotKey(int WXUNUSED(hotkeyId)) +{ + // not implemented + return false; +} + +#endif // wxUSE_HOTKEY + +void wxWindowBase::SendDestroyEvent() +{ + wxWindowDestroyEvent event; + event.SetEventObject(this); + event.SetId(GetId()); + GetEventHandler()->ProcessEvent(event); +} + +// ---------------------------------------------------------------------------- +// event processing +// ---------------------------------------------------------------------------- + +bool wxWindowBase::TryValidator(wxEvent& wxVALIDATOR_PARAM(event)) +{ +#if wxUSE_VALIDATORS + // Can only use the validator of the window which + // is receiving the event + if ( event.GetEventObject() == this ) + { + wxValidator *validator = GetValidator(); + if ( validator && validator->ProcessEvent(event) ) + { + return true; + } + } +#endif // wxUSE_VALIDATORS + + return false; +} + +bool wxWindowBase::TryParent(wxEvent& event) +{ + // carry on up the parent-child hierarchy if the propgation count hasn't + // reached zero yet + if ( event.ShouldPropagate() ) + { + // honour the requests to stop propagation at this window: this is + // used by the dialogs, for example, to prevent processing the events + // from the dialog controls in the parent frame which rarely, if ever, + // makes sense + if ( !(GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) ) + { + wxWindow *parent = GetParent(); + if ( parent && !parent->IsBeingDeleted() ) + { + wxPropagateOnce propagateOnce(event); + + return parent->GetEventHandler()->ProcessEvent(event); + } + } + } + + return wxEvtHandler::TryParent(event); +} + +// ---------------------------------------------------------------------------- +// keyboard navigation +// ---------------------------------------------------------------------------- + +// Navigates in the specified direction. +bool wxWindowBase::Navigate(int flags) +{ + wxNavigationKeyEvent eventNav; + eventNav.SetFlags(flags); + eventNav.SetEventObject(this); + if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) ) + { + return true; + } + return false; +} + +void wxWindowBase::DoMoveInTabOrder(wxWindow *win, MoveKind move) +{ + // check that we're not a top level window + wxCHECK_RET( GetParent(), + _T("MoveBefore/AfterInTabOrder() don't work for TLWs!") ); + + // detect the special case when we have nothing to do anyhow and when the + // code below wouldn't work + if ( win == this ) + return; + + // find the target window in the siblings list + wxWindowList& siblings = GetParent()->GetChildren(); + wxWindowList::compatibility_iterator i = siblings.Find(win); + wxCHECK_RET( i, _T("MoveBefore/AfterInTabOrder(): win is not a sibling") ); + + // unfortunately, when wxUSE_STL == 1 DetachNode() is not implemented so we + // can't just move the node around + wxWindow *self = (wxWindow *)this; + siblings.DeleteObject(self); + if ( move == MoveAfter ) + { + i = i->GetNext(); + } + + if ( i ) + { + siblings.Insert(i, self); + } + else // MoveAfter and win was the last sibling + { + siblings.Append(self); + } +} + +// ---------------------------------------------------------------------------- +// focus handling +// ---------------------------------------------------------------------------- + +/*static*/ wxWindow* wxWindowBase::FindFocus() +{ + wxWindowBase *win = DoFindFocus(); + return win ? win->GetMainWindowOfCompositeControl() : NULL; +} + +// ---------------------------------------------------------------------------- +// global functions +// ---------------------------------------------------------------------------- + +wxWindow* wxGetTopLevelParent(wxWindow *win) +{ + while ( win && !win->IsTopLevel() ) + win = win->GetParent(); + + return win; +} + +#if wxUSE_ACCESSIBILITY +// ---------------------------------------------------------------------------- +// accessible object for windows +// ---------------------------------------------------------------------------- + +// Can return either a child object, or an integer +// representing the child element, starting from 1. +wxAccStatus wxWindowAccessible::HitTest(const wxPoint& WXUNUSED(pt), int* WXUNUSED(childId), wxAccessible** WXUNUSED(childObject)) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + return wxACC_NOT_IMPLEMENTED; +} + +// Returns the rectangle for this object (id = 0) or a child element (id > 0). +wxAccStatus wxWindowAccessible::GetLocation(wxRect& rect, int elementId) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + wxWindow* win = NULL; + if (elementId == 0) + { + win = GetWindow(); + } + else + { + if (elementId <= (int) GetWindow()->GetChildren().GetCount()) + { + win = GetWindow()->GetChildren().Item(elementId-1)->GetData(); + } + else + return wxACC_FAIL; + } + if (win) + { + rect = win->GetRect(); + if (win->GetParent() && !win->IsKindOf(CLASSINFO(wxTopLevelWindow))) + rect.SetPosition(win->GetParent()->ClientToScreen(rect.GetPosition())); + return wxACC_OK; + } + + return wxACC_NOT_IMPLEMENTED; +} + +// Navigates from fromId to toId/toObject. +wxAccStatus wxWindowAccessible::Navigate(wxNavDir navDir, int fromId, + int* WXUNUSED(toId), wxAccessible** toObject) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + switch (navDir) + { + case wxNAVDIR_FIRSTCHILD: + { + if (GetWindow()->GetChildren().GetCount() == 0) + return wxACC_FALSE; + wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetFirst()->GetData(); + *toObject = childWindow->GetOrCreateAccessible(); + + return wxACC_OK; + } + case wxNAVDIR_LASTCHILD: + { + if (GetWindow()->GetChildren().GetCount() == 0) + return wxACC_FALSE; + wxWindow* childWindow = (wxWindow*) GetWindow()->GetChildren().GetLast()->GetData(); + *toObject = childWindow->GetOrCreateAccessible(); + + return wxACC_OK; + } + case wxNAVDIR_RIGHT: + case wxNAVDIR_DOWN: + case wxNAVDIR_NEXT: + { + wxWindowList::compatibility_iterator node = + wxWindowList::compatibility_iterator(); + if (fromId == 0) + { + // Can't navigate to sibling of this window + // if we're a top-level window. + if (!GetWindow()->GetParent()) + return wxACC_NOT_IMPLEMENTED; + + node = GetWindow()->GetParent()->GetChildren().Find(GetWindow()); + } + else + { + if (fromId <= (int) GetWindow()->GetChildren().GetCount()) + node = GetWindow()->GetChildren().Item(fromId-1); + } + + if (node && node->GetNext()) + { + wxWindow* nextWindow = node->GetNext()->GetData(); + *toObject = nextWindow->GetOrCreateAccessible(); + return wxACC_OK; + } + else + return wxACC_FALSE; + } + case wxNAVDIR_LEFT: + case wxNAVDIR_UP: + case wxNAVDIR_PREVIOUS: + { + wxWindowList::compatibility_iterator node = + wxWindowList::compatibility_iterator(); + if (fromId == 0) + { + // Can't navigate to sibling of this window + // if we're a top-level window. + if (!GetWindow()->GetParent()) + return wxACC_NOT_IMPLEMENTED; + + node = GetWindow()->GetParent()->GetChildren().Find(GetWindow()); + } + else + { + if (fromId <= (int) GetWindow()->GetChildren().GetCount()) + node = GetWindow()->GetChildren().Item(fromId-1); + } + + if (node && node->GetPrevious()) + { + wxWindow* previousWindow = node->GetPrevious()->GetData(); + *toObject = previousWindow->GetOrCreateAccessible(); + return wxACC_OK; + } + else + return wxACC_FALSE; + } + } + + return wxACC_NOT_IMPLEMENTED; +} + +// Gets the name of the specified object. +wxAccStatus wxWindowAccessible::GetName(int childId, wxString* name) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + wxString title; + + // If a child, leave wxWidgets to call the function on the actual + // child object. + if (childId > 0) + return wxACC_NOT_IMPLEMENTED; + + // This will eventually be replaced by specialised + // accessible classes, one for each kind of wxWidgets + // control or window. +#if wxUSE_BUTTON + if (GetWindow()->IsKindOf(CLASSINFO(wxButton))) + title = ((wxButton*) GetWindow())->GetLabel(); + else +#endif + title = GetWindow()->GetName(); + + if (!title.IsEmpty()) + { + *name = title; + return wxACC_OK; + } + else + return wxACC_NOT_IMPLEMENTED; +} + +// Gets the number of children. +wxAccStatus wxWindowAccessible::GetChildCount(int* childId) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + *childId = (int) GetWindow()->GetChildren().GetCount(); + return wxACC_OK; +} + +// Gets the specified child (starting from 1). +// If *child is NULL and return value is wxACC_OK, +// this means that the child is a simple element and +// not an accessible object. +wxAccStatus wxWindowAccessible::GetChild(int childId, wxAccessible** child) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + if (childId == 0) + { + *child = this; + return wxACC_OK; + } + + if (childId > (int) GetWindow()->GetChildren().GetCount()) + return wxACC_FAIL; + + wxWindow* childWindow = GetWindow()->GetChildren().Item(childId-1)->GetData(); + *child = childWindow->GetOrCreateAccessible(); + if (*child) + return wxACC_OK; + else + return wxACC_FAIL; +} + +// Gets the parent, or NULL. +wxAccStatus wxWindowAccessible::GetParent(wxAccessible** parent) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + wxWindow* parentWindow = GetWindow()->GetParent(); + if (!parentWindow) + { + *parent = NULL; + return wxACC_OK; + } + else + { + *parent = parentWindow->GetOrCreateAccessible(); + if (*parent) + return wxACC_OK; + else + return wxACC_FAIL; + } +} + +// Performs the default action. childId is 0 (the action for this object) +// or > 0 (the action for a child). +// Return wxACC_NOT_SUPPORTED if there is no default action for this +// window (e.g. an edit control). +wxAccStatus wxWindowAccessible::DoDefaultAction(int WXUNUSED(childId)) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + return wxACC_NOT_IMPLEMENTED; +} + +// Gets the default action for this object (0) or > 0 (the action for a child). +// Return wxACC_OK even if there is no action. actionName is the action, or the empty +// string if there is no action. +// The retrieved string describes the action that is performed on an object, +// not what the object does as a result. For example, a toolbar button that prints +// a document has a default action of "Press" rather than "Prints the current document." +wxAccStatus wxWindowAccessible::GetDefaultAction(int WXUNUSED(childId), wxString* WXUNUSED(actionName)) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + return wxACC_NOT_IMPLEMENTED; +} + +// Returns the description for this object or a child. +wxAccStatus wxWindowAccessible::GetDescription(int WXUNUSED(childId), wxString* description) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + wxString ht(GetWindow()->GetHelpText()); + if (!ht.IsEmpty()) + { + *description = ht; + return wxACC_OK; + } + return wxACC_NOT_IMPLEMENTED; +} + +// Returns help text for this object or a child, similar to tooltip text. +wxAccStatus wxWindowAccessible::GetHelpText(int WXUNUSED(childId), wxString* helpText) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + wxString ht(GetWindow()->GetHelpText()); + if (!ht.IsEmpty()) + { + *helpText = ht; + return wxACC_OK; + } + return wxACC_NOT_IMPLEMENTED; +} + +// Returns the keyboard shortcut for this object or child. +// Return e.g. ALT+K +wxAccStatus wxWindowAccessible::GetKeyboardShortcut(int WXUNUSED(childId), wxString* WXUNUSED(shortcut)) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + return wxACC_NOT_IMPLEMENTED; +} + +// Returns a role constant. +wxAccStatus wxWindowAccessible::GetRole(int childId, wxAccRole* role) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + // If a child, leave wxWidgets to call the function on the actual + // child object. + if (childId > 0) + return wxACC_NOT_IMPLEMENTED; + + if (GetWindow()->IsKindOf(CLASSINFO(wxControl))) + return wxACC_NOT_IMPLEMENTED; +#if wxUSE_STATUSBAR + if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar))) + return wxACC_NOT_IMPLEMENTED; +#endif +#if wxUSE_TOOLBAR + if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar))) + return wxACC_NOT_IMPLEMENTED; +#endif + + //*role = wxROLE_SYSTEM_CLIENT; + *role = wxROLE_SYSTEM_CLIENT; + return wxACC_OK; + + #if 0 + return wxACC_NOT_IMPLEMENTED; + #endif +} + +// Returns a state constant. +wxAccStatus wxWindowAccessible::GetState(int childId, long* state) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + // If a child, leave wxWidgets to call the function on the actual + // child object. + if (childId > 0) + return wxACC_NOT_IMPLEMENTED; + + if (GetWindow()->IsKindOf(CLASSINFO(wxControl))) + return wxACC_NOT_IMPLEMENTED; + +#if wxUSE_STATUSBAR + if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar))) + return wxACC_NOT_IMPLEMENTED; +#endif +#if wxUSE_TOOLBAR + if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar))) + return wxACC_NOT_IMPLEMENTED; +#endif + + *state = 0; + return wxACC_OK; + + #if 0 + return wxACC_NOT_IMPLEMENTED; + #endif +} + +// Returns a localized string representing the value for the object +// or child. +wxAccStatus wxWindowAccessible::GetValue(int WXUNUSED(childId), wxString* WXUNUSED(strValue)) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + return wxACC_NOT_IMPLEMENTED; +} + +// Selects the object or child. +wxAccStatus wxWindowAccessible::Select(int WXUNUSED(childId), wxAccSelectionFlags WXUNUSED(selectFlags)) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + return wxACC_NOT_IMPLEMENTED; +} + +// Gets the window with the keyboard focus. +// If childId is 0 and child is NULL, no object in +// this subhierarchy has the focus. +// If this object has the focus, child should be 'this'. +wxAccStatus wxWindowAccessible::GetFocus(int* WXUNUSED(childId), wxAccessible** WXUNUSED(child)) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + return wxACC_NOT_IMPLEMENTED; +} + +// Gets a variant representing the selected children +// of this object. +// Acceptable values: +// - a null variant (IsNull() returns true) +// - a list variant (GetType() == wxT("list") +// - an integer representing the selected child element, +// or 0 if this object is selected (GetType() == wxT("long") +// - a "void*" pointer to a wxAccessible child object +wxAccStatus wxWindowAccessible::GetSelections(wxVariant* WXUNUSED(selections)) +{ + wxASSERT( GetWindow() != NULL ); + if (!GetWindow()) + return wxACC_FAIL; + + return wxACC_NOT_IMPLEMENTED; } +#endif // wxUSE_ACCESSIBILITY