a2c3fc7c75
The control remained associated to the model so a dangling pointer could be used if the model was destroyed after the control. Fix this by removing the control from the model list of notifiers when it is destroyed. Closes #14124. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@71511 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
313 lines
11 KiB
C++
313 lines
11 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/osx/dataview.h
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// Purpose: wxDataViewCtrl native implementation header for OSX
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// Author:
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// Id: $Id$
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// Copyright: (c) 2009
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_DATAVIEWCTRL_OSX_H_
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#define _WX_DATAVIEWCTRL_OSX_H_
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#ifdef __WXMAC_CLASSIC__
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# error "Native wxDataViewCtrl for classic environment not defined. Please use generic control."
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#endif
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// --------------------------------------------------------
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// Class declarations to mask native types
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// --------------------------------------------------------
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class wxDataViewColumnNativeData; // class storing environment dependent data for the native implementation
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class wxDataViewWidgetImpl; // class used as a common interface for carbon and cocoa implementation
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// ---------------------------------------------------------
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// wxDataViewColumn
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// ---------------------------------------------------------
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class WXDLLIMPEXP_ADV wxDataViewColumn: public wxDataViewColumnBase
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{
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public:
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// constructors / destructor
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wxDataViewColumn(const wxString& title,
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wxDataViewRenderer* renderer,
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unsigned int model_column,
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int width = wxDVC_DEFAULT_WIDTH,
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wxAlignment align = wxALIGN_CENTER,
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int flags = wxDATAVIEW_COL_RESIZABLE);
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wxDataViewColumn(const wxBitmap& bitmap,
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wxDataViewRenderer* renderer,
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unsigned int model_column,
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int width = wxDVC_DEFAULT_WIDTH,
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wxAlignment align = wxALIGN_CENTER,
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int flags = wxDATAVIEW_COL_RESIZABLE);
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virtual ~wxDataViewColumn();
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// implement wxHeaderColumnBase pure virtual methods
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virtual wxAlignment GetAlignment() const { return m_alignment; }
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virtual int GetFlags() const { return m_flags; }
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virtual int GetMaxWidth() const { return m_maxWidth; }
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virtual int GetMinWidth() const { return m_minWidth; }
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virtual wxString GetTitle() const { return m_title; }
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virtual int GetWidth() const;
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virtual bool IsSortOrderAscending() const { return m_ascending; }
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virtual bool IsSortKey() const;
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virtual bool IsHidden() const;
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virtual void SetAlignment (wxAlignment align);
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virtual void SetBitmap (wxBitmap const& bitmap);
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virtual void SetFlags (int flags) { SetIndividualFlags(flags); }
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virtual void SetHidden (bool hidden);
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virtual void SetMaxWidth (int maxWidth);
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virtual void SetMinWidth (int minWidth);
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virtual void SetReorderable(bool reorderable);
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virtual void SetResizeable (bool resizable);
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virtual void SetSortable (bool sortable);
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virtual void SetSortOrder (bool ascending);
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virtual void SetTitle (wxString const& title);
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virtual void SetWidth (int width);
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// implementation only
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wxDataViewColumnNativeData* GetNativeData() const
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{
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return m_NativeDataPtr;
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}
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void SetNativeData(wxDataViewColumnNativeData* newNativeDataPtr); // class takes ownership of pointer
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int GetWidthVariable() const
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{
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return m_width;
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}
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void SetWidthVariable(int NewWidth)
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{
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m_width = NewWidth;
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}
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void SetSortOrderVariable(bool NewOrder)
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{
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m_ascending = NewOrder;
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}
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private:
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// common part of all ctors
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void InitCommon(int width, wxAlignment align, int flags)
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{
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m_ascending = true;
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m_flags = flags & ~wxDATAVIEW_COL_HIDDEN; // TODO
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m_maxWidth = 30000;
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m_minWidth = 0;
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m_alignment = align;
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SetWidth(width);
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}
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bool m_ascending; // sorting order
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int m_flags; // flags for the column
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int m_maxWidth; // maximum width for the column
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int m_minWidth; // minimum width for the column
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int m_width; // column width
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wxAlignment m_alignment; // column header alignment
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wxDataViewColumnNativeData* m_NativeDataPtr; // storing environment dependent data for the native implementation
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wxString m_title; // column title
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};
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//
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// type definitions related to wxDataViewColumn
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//
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WX_DEFINE_ARRAY(wxDataViewColumn*,wxDataViewColumnPtrArrayType);
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// ---------------------------------------------------------
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// wxDataViewCtrl
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// ---------------------------------------------------------
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class WXDLLIMPEXP_ADV wxDataViewCtrl: public wxDataViewCtrlBase
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{
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public:
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// Constructors / destructor:
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wxDataViewCtrl()
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{
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Init();
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}
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wxDataViewCtrl(wxWindow *parent,
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wxWindowID winid,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxDataViewCtrlNameStr )
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{
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Init();
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Create(parent, winid, pos, size, style, validator, name);
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}
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~wxDataViewCtrl();
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bool Create(wxWindow *parent,
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wxWindowID winid,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxDataViewCtrlNameStr);
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virtual wxWindow* GetMainWindow() // not used for the native implementation
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{
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return this;
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}
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// inherited methods from wxDataViewCtrlBase:
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virtual bool AssociateModel(wxDataViewModel* model);
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virtual bool AppendColumn (wxDataViewColumn* columnPtr);
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virtual bool ClearColumns ();
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virtual bool DeleteColumn (wxDataViewColumn* columnPtr);
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virtual wxDataViewColumn* GetColumn (unsigned int pos) const;
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virtual unsigned int GetColumnCount () const;
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virtual int GetColumnPosition(const wxDataViewColumn* columnPtr) const;
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virtual wxDataViewColumn* GetSortingColumn () const;
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virtual bool InsertColumn (unsigned int pos, wxDataViewColumn *col);
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virtual bool PrependColumn (wxDataViewColumn* columnPtr);
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virtual void Collapse( const wxDataViewItem& item);
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virtual void EnsureVisible(const wxDataViewItem& item, const wxDataViewColumn* columnPtr=NULL);
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virtual void Expand(const wxDataViewItem& item);
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virtual bool IsExpanded(const wxDataViewItem & item) const;
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virtual unsigned int GetCount() const;
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virtual wxRect GetItemRect(const wxDataViewItem& item,
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const wxDataViewColumn* columnPtr = NULL) const;
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virtual int GetSelectedItemsCount() const;
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virtual int GetSelections(wxDataViewItemArray& sel) const;
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virtual void HitTest(const wxPoint& point, wxDataViewItem& item, wxDataViewColumn*& columnPtr) const;
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virtual bool IsSelected(const wxDataViewItem& item) const;
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virtual void SelectAll();
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virtual void Select(const wxDataViewItem& item);
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virtual void SetSelections(const wxDataViewItemArray& sel);
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virtual void Unselect(const wxDataViewItem& item);
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virtual void UnselectAll();
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//
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// implementation
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//
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// returns a pointer to the native implementation
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wxDataViewWidgetImpl* GetDataViewPeer() const;
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// adds all children of the passed parent to the control; if 'parentItem' is invalid the root(s) is/are added:
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void AddChildren(wxDataViewItem const& parentItem);
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// finishes editing of custom items; if no custom item is currently edited the method does nothing
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void FinishCustomItemEditing();
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virtual void EditItem(const wxDataViewItem& item, const wxDataViewColumn *column);
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// returns the n-th pointer to a column;
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// this method is different from GetColumn(unsigned int pos) because here 'n' is not a position in the control but the n-th
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// position in the internal list/array of column pointers
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wxDataViewColumn* GetColumnPtr(size_t n) const
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{
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return m_ColumnPtrs[n];
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}
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// returns the current being rendered item of the customized renderer (this item is only valid during editing)
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wxDataViewItem const& GetCustomRendererItem() const
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{
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return m_CustomRendererItem;
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}
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// returns a pointer to a customized renderer (this pointer is only valid during editing)
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wxDataViewCustomRenderer* GetCustomRendererPtr() const
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{
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return m_CustomRendererPtr;
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}
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// checks if currently a delete process is running
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bool IsDeleting() const
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{
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return m_Deleting;
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}
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// with CG, we need to get the context from an kEventControlDraw event
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// unfortunately, the DataBrowser callbacks don't provide the context
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// and we need it, so we need to set/remove it before and after draw
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// events so we can access it in the callbacks.
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void MacSetDrawingContext(void* context)
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{
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m_cgContext = context;
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}
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void* MacGetDrawingContext() const
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{
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return m_cgContext;
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}
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// sets the currently being edited item of the custom renderer
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void SetCustomRendererItem(wxDataViewItem const& NewItem)
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{
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m_CustomRendererItem = NewItem;
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}
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// sets the custom renderer
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void SetCustomRendererPtr(wxDataViewCustomRenderer* NewCustomRendererPtr)
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{
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m_CustomRendererPtr = NewCustomRendererPtr;
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}
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// sets the flag indicating a deletion process:
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void SetDeleting(bool deleting)
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{
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m_Deleting = deleting;
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}
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virtual wxDataViewColumn *GetCurrentColumn() const;
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virtual wxVisualAttributes GetDefaultAttributes() const
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{
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return GetClassDefaultAttributes(GetWindowVariant());
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}
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static wxVisualAttributes
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GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
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protected:
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// inherited methods from wxDataViewCtrlBase
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virtual void DoSetExpanderColumn();
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virtual void DoSetIndent();
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virtual wxSize DoGetBestSize() const;
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// event handling
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void OnSize(wxSizeEvent &event);
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void OnMouse(wxMouseEvent &event);
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private:
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// initializing of local variables:
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void Init();
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virtual wxDataViewItem DoGetCurrentItem() const;
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virtual void DoSetCurrentItem(const wxDataViewItem& item);
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//
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// variables
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//
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bool m_Deleting; // flag indicating if a delete process is running; this flag is necessary because the notifier indicating an item deletion in the model may be called
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// after the actual deletion of the item; then, native callback functions/delegates may try to update data of variables that are already deleted;
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// if this flag is set all native variable update requests will be ignored
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void* m_cgContext; // pointer to core graphics context
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wxDataViewCustomRenderer* m_CustomRendererPtr; // pointer to a valid custom renderer while editing; this class does NOT own the pointer
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wxDataViewItem m_CustomRendererItem; // currently edited item by the customrenderer; it is invalid while not editing a custom item
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wxDataViewColumnPtrArrayType m_ColumnPtrs; // all column pointers are stored in an array
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wxDataViewModelNotifier* m_ModelNotifier; // stores the model notifier for the control (does not own the notifier)
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// wxWidget internal stuff:
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DECLARE_DYNAMIC_CLASS(wxDataViewCtrl)
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DECLARE_NO_COPY_CLASS(wxDataViewCtrl)
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DECLARE_EVENT_TABLE()
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};
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#endif // _WX_DATAVIEWCTRL_OSX_H_
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