X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/80fdcdb90ef779185492dab676d461fc34933312..005659f0ffe0b280c3f800a5706b93fe9b78276e:/src/common/wincmn.cpp

diff --git a/src/common/wincmn.cpp b/src/common/wincmn.cpp
index eca7dd157a..ff653cb830 100644
--- a/src/common/wincmn.cpp
+++ b/src/common/wincmn.cpp
@@ -75,7 +75,7 @@
 #include "wx/platinfo.h"
 #include "wx/private/window.h"
 
-#ifdef __WXMSW__
+#ifdef __WINDOWS__
     #include "wx/msw/wrapwin.h"
 #endif
 
@@ -554,7 +554,14 @@ void wxWindowBase::SendDestroyEvent()
 
 bool wxWindowBase::Destroy()
 {
-    SendDestroyEvent();
+    // If our handle is invalid, it means that this window has never been
+    // created, either because creating it failed or, more typically, because
+    // this wxWindow object was default-constructed and its Create() method had
+    // never been called. As we didn't send wxWindowCreateEvent in this case
+    // (which is sent after successful creation), don't send the matching
+    // wxWindowDestroyEvent neither.
+    if ( GetHandle() )
+        SendDestroyEvent();
 
     delete this;
 
@@ -613,20 +620,13 @@ void wxWindowBase::DoCentre(int dir)
 // fits the window around the children
 void wxWindowBase::Fit()
 {
-    if ( !GetChildren().empty() )
-    {
-        SetSize(GetBestSize());
-    }
-    //else: do nothing if we have no children
+    SetSize(GetBestSize());
 }
 
 // fits virtual size (ie. scrolled area etc.) around children
 void wxWindowBase::FitInside()
 {
-    if ( GetChildren().GetCount() > 0 )
-    {
-        SetVirtualSize( GetBestVirtualSize() );
-    }
+    SetVirtualSize( GetBestVirtualSize() );
 }
 
 // On Mac, scrollbars are explicitly children.
@@ -642,7 +642,7 @@ static bool wxHasRealChildren(const wxWindowBase* win)
         wxWindow *win = node->GetData();
         if ( !win->IsTopLevel() && win->IsShown()
 #if wxUSE_SCROLLBAR
-            && !win->IsKindOf(CLASSINFO(wxScrollBar))
+            && !wxDynamicCast(win, wxScrollBar)
 #endif
             )
             realChildCount ++;
@@ -899,26 +899,53 @@ wxSize wxWindowBase::GetBestSize() const
     // it to be used
     wxSize size = DoGetBestClientSize();
     if ( size != wxDefaultSize )
-    {
         size += DoGetBorderSize();
+    else
+        size = DoGetBestSize();
 
-        CacheBestSize(size);
-        return size;
-    }
+    // Ensure that the best size is at least as large as min size.
+    size.IncTo(GetMinSize());
+
+    // And not larger than max size.
+    size.DecToIfSpecified(GetMaxSize());
+
+    // Finally cache result and return.
+    CacheBestSize(size);
+    return size;
+}
+
+int wxWindowBase::GetBestHeight(int width) const
+{
+    const int height = DoGetBestClientHeight(width);
+
+    return height == wxDefaultCoord
+            ? GetBestSize().y
+            : height + DoGetBorderSize().y;
+}
+
+int wxWindowBase::GetBestWidth(int height) const
+{
+    const int width = DoGetBestClientWidth(height);
 
-    return DoGetBestSize();
+    return width == wxDefaultCoord
+            ? GetBestSize().x
+            : width + DoGetBorderSize().x;
 }
 
 void wxWindowBase::SetMinSize(const wxSize& minSize)
 {
     m_minWidth = minSize.x;
     m_minHeight = minSize.y;
+
+    InvalidateBestSize();
 }
 
 void wxWindowBase::SetMaxSize(const wxSize& maxSize)
 {
     m_maxWidth = maxSize.x;
     m_maxHeight = maxSize.y;
+
+    InvalidateBestSize();
 }
 
 void wxWindowBase::SetInitialSize(const wxSize& size)
@@ -1064,7 +1091,7 @@ void wxWindowBase::SendSizeEvent(int flags)
     wxSizeEvent event(GetSize(), GetId());
     event.SetEventObject(this);
     if ( flags & wxSEND_EVENT_POST )
-        wxPostEvent(this, event);
+        wxPostEvent(GetEventHandler(), event);
     else
         HandleWindowEvent(event);
 }
@@ -1235,9 +1262,27 @@ void wxWindowBase::Thaw()
 }
 
 // ----------------------------------------------------------------------------
-// reparenting the window
+// Dealing with parents and children.
 // ----------------------------------------------------------------------------
 
+bool wxWindowBase::IsDescendant(wxWindowBase* win) const
+{
+    // Iterate until we find this window in the parent chain or exhaust it.
+    while ( win )
+    {
+        if ( win == this )
+            return true;
+
+        // Stop iterating on reaching the top level window boundary.
+        if ( win->IsTopLevel() )
+            break;
+
+        win = win->GetParent();
+    }
+
+    return false;
+}
+
 void wxWindowBase::AddChild(wxWindowBase *child)
 {
     wxCHECK_RET( child, wxT("can't add a NULL child") );
@@ -1272,6 +1317,20 @@ void wxWindowBase::RemoveChild(wxWindowBase *child)
     child->SetParent(NULL);
 }
 
+void wxWindowBase::SetParent(wxWindowBase *parent)
+{
+    // This assert catches typos which may result in using "this" instead of
+    // "parent" when creating the window. This doesn't happen often but when it
+    // does the results are unpleasant because the program typically just
+    // crashes when due to a stack overflow or something similar and this
+    // assert doesn't cost much (OTOH doing a more general check that the
+    // parent is not one of our children would be more expensive and probably
+    // not worth it).
+    wxASSERT_MSG( parent != this, wxS("Can't use window as its own parent") );
+
+    m_parent = (wxWindow *)parent;
+}
+
 bool wxWindowBase::Reparent(wxWindowBase *newParent)
 {
     wxWindow *oldParent = GetParent();
@@ -1395,7 +1454,11 @@ wxEvtHandler *wxWindowBase::PopEventHandler(bool deleteHandler)
         "the first handler of the wxWindow stack should have non-NULL next handler" );
 
     firstHandler->SetNextHandler(NULL);
-    secondHandler->SetPreviousHandler(NULL);
+
+    // It is harmless but useless to unset the previous handler of the window
+    // itself as it's always NULL anyhow, so don't do this.
+    if ( secondHandler != this )
+        secondHandler->SetPreviousHandler(NULL);
 
     // now firstHandler is completely unlinked; set secondHandler as the new window event handler
     SetEventHandler(secondHandler);
@@ -1521,7 +1584,7 @@ wxColour wxWindowBase::GetBackgroundColour() const
         // 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() )
+        if ( !colBg.IsOk() )
             colBg = GetClassDefaultAttributes().colBg;
 
         return colBg;
@@ -1533,7 +1596,7 @@ wxColour wxWindowBase::GetBackgroundColour() const
 wxColour wxWindowBase::GetForegroundColour() const
 {
     // logic is the same as above
-    if ( !m_hasFgCol && !m_foregroundColour.Ok() )
+    if ( !m_hasFgCol && !m_foregroundColour.IsOk() )
     {
         wxColour colFg = GetDefaultAttributes().colFg;
 
@@ -1546,6 +1609,39 @@ wxColour wxWindowBase::GetForegroundColour() const
         return m_foregroundColour;
 }
 
+bool wxWindowBase::SetBackgroundStyle(wxBackgroundStyle style)
+{
+    // The checks below shouldn't be triggered if we're not really changing the
+    // style.
+    if ( style == m_backgroundStyle )
+        return true;
+
+    // Transparent background style can be only set before creation because of
+    // wxGTK limitation.
+    wxCHECK_MSG( (style != wxBG_STYLE_TRANSPARENT) || !GetHandle(),
+                 false,
+                 "wxBG_STYLE_TRANSPARENT style can only be set before "
+                 "Create()-ing the window." );
+
+    // And once it is set, wxBG_STYLE_TRANSPARENT can't be unset.
+    wxCHECK_MSG( (m_backgroundStyle != wxBG_STYLE_TRANSPARENT) ||
+                 (style == wxBG_STYLE_TRANSPARENT),
+                 false,
+                 "wxBG_STYLE_TRANSPARENT can't be unset once it was set." );
+
+    m_backgroundStyle = style;
+
+    return true;
+}
+
+bool wxWindowBase::IsTransparentBackgroundSupported(wxString *reason) const
+{
+    if ( reason )
+        *reason = _("This platform does not support background transparency.");
+
+    return false;
+}
+
 bool wxWindowBase::SetBackgroundColour( const wxColour &colour )
 {
     if ( colour == m_backgroundColour )
@@ -1555,7 +1651,7 @@ bool wxWindowBase::SetBackgroundColour( const wxColour &colour )
 
     m_inheritBgCol = m_hasBgCol;
     m_backgroundColour = colour;
-    SetThemeEnabled( !m_hasBgCol && !m_foregroundColour.Ok() );
+    SetThemeEnabled( !m_hasBgCol && !m_foregroundColour.IsOk() );
     return true;
 }
 
@@ -1567,7 +1663,7 @@ bool wxWindowBase::SetForegroundColour( const wxColour &colour )
     m_hasFgCol = colour.IsOk();
     m_inheritFgCol = m_hasFgCol;
     m_foregroundColour = colour;
-    SetThemeEnabled( !m_hasFgCol && !m_backgroundColour.Ok() );
+    SetThemeEnabled( !m_hasFgCol && !m_backgroundColour.IsOk() );
     return true;
 }
 
@@ -1876,6 +1972,7 @@ wxWindowBase::FindWindowById( long id, const wxWindow* parent )
 // dialog oriented functions
 // ----------------------------------------------------------------------------
 
+#if WXWIN_COMPATIBILITY_2_8
 void wxWindowBase::MakeModal(bool modal)
 {
     // Disable all other windows
@@ -1892,96 +1989,165 @@ void wxWindowBase::MakeModal(bool modal)
         }
     }
 }
+#endif // WXWIN_COMPATIBILITY_2_8
+
+#if wxUSE_VALIDATORS
+
+namespace
+{
+
+// This class encapsulates possibly recursive iteration on window children done
+// by Validate() and TransferData{To,From}Window() and allows to avoid code
+// duplication in all three functions.
+class ValidationTraverserBase
+{
+public:
+    wxEXPLICIT ValidationTraverserBase(wxWindowBase* win)
+        : m_win(static_cast<wxWindow*>(win))
+    {
+    }
+
+    // Traverse all the direct children calling OnDo() on them and also all
+    // grandchildren if wxWS_EX_VALIDATE_RECURSIVELY is used, calling
+    // OnRecurse() for them.
+    bool DoForAllChildren()
+    {
+        const bool recurse = m_win->HasExtraStyle(wxWS_EX_VALIDATE_RECURSIVELY);
+
+        wxWindowList& children = m_win->GetChildren();
+        for ( wxWindowList::iterator i = children.begin();
+              i != children.end();
+              ++i )
+        {
+            wxWindow* const child = static_cast<wxWindow*>(*i);
+            wxValidator* const validator = child->GetValidator();
+            if ( validator && !OnDo(validator) )
+            {
+                return false;
+            }
+
+            // Notice that validation should never recurse into top level
+            // children, e.g. some other dialog which might happen to be
+            // currently shown.
+            if ( recurse && !child->IsTopLevel() && !OnRecurse(child) )
+            {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+protected:
+    // Called for each child, validator is guaranteed to be non-NULL.
+    virtual bool OnDo(wxValidator* validator) = 0;
+
+    // Called for each child if we need to recurse into its children.
+    virtual bool OnRecurse(wxWindow* child) = 0;
+
+
+    // The window whose children we're traversing.
+    wxWindow* const m_win;
+
+    wxDECLARE_NO_COPY_CLASS(ValidationTraverserBase);
+};
+
+} // anonymous namespace
+
+#endif // wxUSE_VALIDATORS
 
 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() )
+    class ValidateTraverser : public ValidationTraverserBase
     {
-        wxWindowBase *child = node->GetData();
-        wxValidator *validator = child->GetValidator();
-        if ( validator && !validator->Validate((wxWindow *)this) )
+    public:
+        wxEXPLICIT ValidateTraverser(wxWindowBase* win)
+            : ValidationTraverserBase(win)
         {
-            return false;
         }
 
-        if ( recurse && !child->Validate() )
+        virtual bool OnDo(wxValidator* validator)
         {
-            return false;
+            return validator->Validate(m_win);
         }
-    }
-#endif // wxUSE_VALIDATORS
 
+        virtual bool OnRecurse(wxWindow* child)
+        {
+            return child->Validate();
+        }
+    };
+
+    return ValidateTraverser(this).DoForAllChildren();
+#else // !wxUSE_VALIDATORS
     return true;
+#endif // wxUSE_VALIDATORS/!wxUSE_VALIDATORS
 }
 
 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() )
+    class DataToWindowTraverser : public ValidationTraverserBase
     {
-        wxWindowBase *child = node->GetData();
-        wxValidator *validator = child->GetValidator();
-        if ( validator && !validator->TransferToWindow() )
+    public:
+        wxEXPLICIT DataToWindowTraverser(wxWindowBase* win)
+            : ValidationTraverserBase(win)
         {
-            wxLogWarning(_("Could not transfer data to window"));
-#if wxUSE_LOG
-            wxLog::FlushActive();
-#endif // wxUSE_LOG
-
-            return false;
         }
 
-        if ( recurse )
+        virtual bool OnDo(wxValidator* validator)
         {
-            if ( !child->TransferDataToWindow() )
+            if ( !validator->TransferToWindow() )
             {
-                // warning already given
+                wxLogWarning(_("Could not transfer data to window"));
+#if wxUSE_LOG
+                wxLog::FlushActive();
+#endif // wxUSE_LOG
+
                 return false;
             }
+
+            return true;
         }
-    }
-#endif // wxUSE_VALIDATORS
 
+        virtual bool OnRecurse(wxWindow* child)
+        {
+            return child->TransferDataToWindow();
+        }
+    };
+
+    return DataToWindowTraverser(this).DoForAllChildren();
+#else // !wxUSE_VALIDATORS
     return true;
+#endif // wxUSE_VALIDATORS/!wxUSE_VALIDATORS
 }
 
 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() )
+    class DataFromWindowTraverser : public ValidationTraverserBase
     {
-        wxWindow *child = node->GetData();
-        wxValidator *validator = child->GetValidator();
-        if ( validator && !validator->TransferFromWindow() )
+    public:
+        DataFromWindowTraverser(wxWindowBase* win)
+            : ValidationTraverserBase(win)
         {
-            // nop warning here because the application is supposed to give
-            // one itself - we don't know here what might have gone wrongly
+        }
 
-            return false;
+        virtual bool OnDo(wxValidator* validator)
+        {
+            return validator->TransferFromWindow();
         }
 
-        if ( recurse )
+        virtual bool OnRecurse(wxWindow* child)
         {
-            if ( !child->TransferDataFromWindow() )
-            {
-                // warning already given
-                return false;
-            }
+            return child->TransferDataFromWindow();
         }
-    }
-#endif // wxUSE_VALIDATORS
+    };
 
+    return DataFromWindowTraverser(this).DoForAllChildren();
+#else // !wxUSE_VALIDATORS
     return true;
+#endif // wxUSE_VALIDATORS/!wxUSE_VALIDATORS
 }
 
 void wxWindowBase::InitDialog()
@@ -2114,6 +2280,13 @@ void wxWindowBase::DoSetToolTip(wxToolTip *tooltip)
     }
 }
 
+bool wxWindowBase::CopyToolTip(wxToolTip *tip)
+{
+    SetToolTip(tip ? new wxToolTip(tip->GetTip()) : NULL);
+
+    return tip != NULL;
+}
+
 #endif // wxUSE_TOOLTIPS
 
 // ----------------------------------------------------------------------------
@@ -2158,7 +2331,7 @@ void wxWindowBase::UnsetConstraints(wxLayoutConstraints *c)
 {
     if ( c )
     {
-        if ( c->left.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
+        if ( c->left.GetOtherWindow() && (c->left.GetOtherWindow() != this) )
             c->left.GetOtherWindow()->RemoveConstraintReference(this);
         if ( c->top.GetOtherWindow() && (c->top.GetOtherWindow() != this) )
             c->top.GetOtherWindow()->RemoveConstraintReference(this);
@@ -2560,17 +2733,12 @@ void wxWindowBase::GetPositionConstraint(int *x, int *y) const
 
 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 )
     {
-        wxWindow *parent = GetParent();
-        if ( !(sizeFlags & wxSIZE_NO_ADJUSTMENTS) && parent )
-        {
-            wxPoint pt(parent->GetClientAreaOrigin());
-            x += pt.x;
-            y += pt.y;
-        }
+        wxPoint pt(parent->GetClientAreaOrigin());
+        x += pt.x;
+        y += pt.y;
     }
 }
 
@@ -2644,7 +2812,7 @@ bool wxWindowBase::SendIdleEvents(wxIdleEvent& event)
 
 void wxWindowBase::OnInternalIdle()
 {
-    if (wxUpdateUIEvent::CanUpdate(this) && IsShownOnScreen())
+    if ( wxUpdateUIEvent::CanUpdate(this) )
         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
 }
 
@@ -2663,6 +2831,8 @@ wxSize wxWindowBase::GetDlgUnitBase() const
 {
     const wxWindowBase * const parent = wxGetTopLevelParent((wxWindow*)this);
 
+    wxCHECK_MSG( parent, wxDefaultSize, wxS("Must have TLW parent") );
+
     if ( !parent->m_font.IsOk() )
     {
         // Default GUI font is used. This is the most common case, so
@@ -2967,19 +3137,19 @@ wxAccessible* wxWindowBase::CreateAccessible()
 // list classes implementation
 // ----------------------------------------------------------------------------
 
-#if wxUSE_STL
+#if wxUSE_STD_CONTAINERS
 
 #include "wx/listimpl.cpp"
 WX_DEFINE_LIST(wxWindowList)
 
-#else // !wxUSE_STL
+#else // !wxUSE_STD_CONTAINERS
 
 void wxWindowListNode::DeleteData()
 {
     delete (wxWindow *)GetData();
 }
 
-#endif // wxUSE_STL/!wxUSE_STL
+#endif // wxUSE_STD_CONTAINERS/!wxUSE_STD_CONTAINERS
 
 // ----------------------------------------------------------------------------
 // borders
@@ -3283,8 +3453,8 @@ void wxWindowBase::DoMoveInTabOrder(wxWindow *win, WindowOrder move)
     wxWindowList::compatibility_iterator i = siblings.Find(win);
     wxCHECK_RET( i, wxT("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
+    // unfortunately, when wxUSE_STD_CONTAINERS == 1 DetachNode() is not
+    // implemented so we can't just move the node around
     wxWindow *self = (wxWindow *)this;
     siblings.DeleteObject(self);
     if ( move == OrderAfter )
@@ -3314,9 +3484,9 @@ void wxWindowBase::DoMoveInTabOrder(wxWindow *win, WindowOrder move)
 
 bool wxWindowBase::HasFocus() const
 {
-    wxWindowBase *win = DoFindFocus();
-    return win == this ||
-           win == wxConstCast(this, wxWindowBase)->GetMainWindowOfCompositeControl();
+    wxWindowBase* const win = DoFindFocus();
+    return win &&
+            (this == win || this == win->GetMainWindowOfCompositeControl());
 }
 
 // ----------------------------------------------------------------------------
@@ -3426,7 +3596,7 @@ wxAccStatus wxWindowAccessible::GetLocation(wxRect& rect, int elementId)
     if (win)
     {
         rect = win->GetRect();
-        if (win->GetParent() && !win->IsKindOf(CLASSINFO(wxTopLevelWindow)))
+        if (win->GetParent() && !wxDynamicCast(win, wxTopLevelWindow))
             rect.SetPosition(win->GetParent()->ClientToScreen(rect.GetPosition()));
         return wxACC_OK;
     }
@@ -3545,7 +3715,7 @@ wxAccStatus wxWindowAccessible::GetName(int childId, wxString* name)
     // accessible classes, one for each kind of wxWidgets
     // control or window.
 #if wxUSE_BUTTON
-    if (GetWindow()->IsKindOf(CLASSINFO(wxButton)))
+    if (wxDynamicCast(GetWindow(), wxButton))
         title = ((wxButton*) GetWindow())->GetLabel();
     else
 #endif
@@ -3704,14 +3874,14 @@ wxAccStatus wxWindowAccessible::GetRole(int childId, wxAccRole* role)
     if (childId > 0)
         return wxACC_NOT_IMPLEMENTED;
 
-    if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
+    if (wxDynamicCast(GetWindow(), wxControl))
         return wxACC_NOT_IMPLEMENTED;
 #if wxUSE_STATUSBAR
-    if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
+    if (wxDynamicCast(GetWindow(), wxStatusBar))
         return wxACC_NOT_IMPLEMENTED;
 #endif
 #if wxUSE_TOOLBAR
-    if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
+    if (wxDynamicCast(GetWindow(), wxToolBar))
         return wxACC_NOT_IMPLEMENTED;
 #endif
 
@@ -3736,15 +3906,15 @@ wxAccStatus wxWindowAccessible::GetState(int childId, long* state)
     if (childId > 0)
         return wxACC_NOT_IMPLEMENTED;
 
-    if (GetWindow()->IsKindOf(CLASSINFO(wxControl)))
+    if (wxDynamicCast(GetWindow(), wxControl))
         return wxACC_NOT_IMPLEMENTED;
 
 #if wxUSE_STATUSBAR
-    if (GetWindow()->IsKindOf(CLASSINFO(wxStatusBar)))
+    if (wxDynamicCast(GetWindow(), wxStatusBar))
         return wxACC_NOT_IMPLEMENTED;
 #endif
 #if wxUSE_TOOLBAR
-    if (GetWindow()->IsKindOf(CLASSINFO(wxToolBar)))
+    if (wxDynamicCast(GetWindow(), wxToolBar))
         return wxACC_NOT_IMPLEMENTED;
 #endif