wxwidgets/include/wx/osx/dataview.h
Vadim Zeitlin 4f4c5fcfdf Use nullptr instead of NULL in the code and documentation
This is a combination of running clang-tidy with modernize-use-nullptr
check for some ports (GTK, X11, OSX) and manual changes to the ports for
which it couldn't be used easily (MSW, DFB) and also manually updating
the docs.

Also replace NULL with null or nullptr in the comments as this is more
consistent with the use of nullptr in the code and makes it simpler to
grep for the remaining occurrences of NULL itself.

And also use null in the assert messages.

Only a few occurrences of "NULL" are still left in non-C files, mostly
corresponding to unclear comments or string output which it might not be
safe to change.
2022-10-18 01:25:25 +02:00

323 lines
12 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: wx/osx/dataview.h
// Purpose: wxDataViewCtrl native implementation header for OSX
// Author:
// Copyright: (c) 2009
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_DATAVIEWCTRL_OSX_H_
#define _WX_DATAVIEWCTRL_OSX_H_
#ifdef __WXMAC_CLASSIC__
# error "Native wxDataViewCtrl for classic environment not defined. Please use generic control."
#endif
// --------------------------------------------------------
// Class declarations to mask native types
// --------------------------------------------------------
class wxDataViewColumnNativeData; // class storing environment dependent data for the native implementation
class wxDataViewWidgetImpl; // class used as a common interface for carbon and cocoa implementation
// ---------------------------------------------------------
// wxDataViewColumn
// ---------------------------------------------------------
class WXDLLIMPEXP_ADV wxDataViewColumn: public wxDataViewColumnBase
{
public:
// constructors / destructor
wxDataViewColumn(const wxString& title,
wxDataViewRenderer* renderer,
unsigned int model_column,
int width = wxDVC_DEFAULT_WIDTH,
wxAlignment align = wxALIGN_CENTER,
int flags = wxDATAVIEW_COL_RESIZABLE);
wxDataViewColumn(const wxBitmapBundle& bitmap,
wxDataViewRenderer* renderer,
unsigned int model_column,
int width = wxDVC_DEFAULT_WIDTH,
wxAlignment align = wxALIGN_CENTER,
int flags = wxDATAVIEW_COL_RESIZABLE);
virtual ~wxDataViewColumn();
// implement wxHeaderColumnBase pure virtual methods
virtual wxAlignment GetAlignment() const override { return m_alignment; }
virtual int GetFlags() const override { return m_flags; }
virtual int GetMaxWidth() const { return m_maxWidth; }
virtual int GetMinWidth() const override { return m_minWidth; }
virtual wxString GetTitle() const override { return m_title; }
virtual int GetWidth() const override;
virtual bool IsSortOrderAscending() const override { return m_ascending; }
virtual bool IsSortKey() const override;
virtual bool IsHidden() const override;
virtual void SetAlignment (wxAlignment align) override;
virtual void SetBitmap (wxBitmapBundle const& bitmap) override;
virtual void SetFlags (int flags) override { m_flags = flags; /*SetIndividualFlags(flags); */ }
virtual void SetHidden (bool hidden) override;
virtual void SetMaxWidth (int maxWidth);
virtual void SetMinWidth (int minWidth) override;
virtual void SetReorderable(bool reorderable) override;
virtual void SetResizeable (bool resizable) override;
virtual void UnsetAsSortKey() override;
virtual void SetSortable (bool sortable) override;
virtual void SetSortOrder (bool ascending) override;
virtual void SetTitle (wxString const& title) override;
virtual void SetWidth (int width) override;
// implementation only
wxDataViewColumnNativeData* GetNativeData() const
{
return m_NativeDataPtr;
}
void SetNativeData(wxDataViewColumnNativeData* newNativeDataPtr); // class takes ownership of pointer
int GetWidthVariable() const
{
return m_width;
}
void SetWidthVariable(int NewWidth)
{
m_width = NewWidth;
}
void SetSortOrderVariable(bool NewOrder)
{
m_ascending = NewOrder;
}
private:
// common part of all ctors
void InitCommon(int width, wxAlignment align, int flags)
{
m_ascending = true;
m_flags = flags & ~wxDATAVIEW_COL_HIDDEN; // TODO
m_maxWidth = 30000;
m_minWidth = 0;
m_alignment = align;
SetWidth(width);
}
bool m_ascending; // sorting order
int m_flags; // flags for the column
int m_maxWidth; // maximum width for the column
int m_minWidth; // minimum width for the column
int m_width; // column width
wxAlignment m_alignment; // column header alignment
wxDataViewColumnNativeData* m_NativeDataPtr; // storing environment dependent data for the native implementation
wxString m_title; // column title
};
//
// type definitions related to wxDataViewColumn
//
WX_DEFINE_ARRAY(wxDataViewColumn*,wxDataViewColumnPtrArrayType);
// ---------------------------------------------------------
// wxDataViewCtrl
// ---------------------------------------------------------
class WXDLLIMPEXP_ADV wxDataViewCtrl: public wxDataViewCtrlBase
{
public:
// Constructors / destructor:
wxDataViewCtrl()
{
Init();
}
wxDataViewCtrl(wxWindow *parent,
wxWindowID winid,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = 0,
const wxValidator& validator = wxDefaultValidator,
const wxString& name = wxASCII_STR(wxDataViewCtrlNameStr) )
{
Init();
Create(parent, winid, pos, size, style, validator, name);
}
~wxDataViewCtrl();
bool Create(wxWindow *parent,
wxWindowID winid,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = 0,
const wxValidator& validator = wxDefaultValidator,
const wxString& name = wxASCII_STR(wxDataViewCtrlNameStr));
virtual wxWindow* GetMainWindow() // not used for the native implementation
{
return this;
}
// inherited methods from wxDataViewCtrlBase:
virtual bool AssociateModel(wxDataViewModel* model) override;
virtual bool AppendColumn (wxDataViewColumn* columnPtr) override;
virtual bool ClearColumns () override;
virtual bool DeleteColumn (wxDataViewColumn* columnPtr) override;
virtual wxDataViewColumn* GetColumn (unsigned int pos) const override;
virtual unsigned int GetColumnCount () const override;
virtual int GetColumnPosition(const wxDataViewColumn* columnPtr) const override;
virtual wxDataViewColumn* GetSortingColumn () const override;
virtual bool InsertColumn (unsigned int pos, wxDataViewColumn *col) override;
virtual bool PrependColumn (wxDataViewColumn* columnPtr) override;
virtual void Collapse( const wxDataViewItem& item) override;
virtual void EnsureVisible(const wxDataViewItem& item, const wxDataViewColumn* columnPtr=nullptr) override;
virtual bool IsExpanded(const wxDataViewItem & item) const override;
virtual unsigned int GetCount() const;
virtual int GetCountPerPage() const override;
virtual wxRect GetItemRect(const wxDataViewItem& item,
const wxDataViewColumn* columnPtr = nullptr) const override;
virtual int GetSelectedItemsCount() const override;
virtual int GetSelections(wxDataViewItemArray& sel) const override;
virtual wxDataViewItem GetTopItem() const override;
virtual void HitTest(const wxPoint& point, wxDataViewItem& item, wxDataViewColumn*& columnPtr) const override;
virtual bool SetRowHeight(int rowHeight) override;
virtual bool IsSelected(const wxDataViewItem& item) const override;
virtual void SelectAll() override;
virtual void Select(const wxDataViewItem& item) override;
virtual void SetSelections(const wxDataViewItemArray& sel) override;
virtual void Unselect(const wxDataViewItem& item) override;
virtual void UnselectAll() override;
//
// implementation
//
// returns a pointer to the native implementation
wxDataViewWidgetImpl* GetDataViewPeer() const;
// adds all children of the passed parent to the control; if 'parentItem' is invalid the root(s) is/are added:
void AddChildren(wxDataViewItem const& parentItem);
// finishes editing of custom items; if no custom item is currently edited the method does nothing
void FinishCustomItemEditing();
virtual void EditItem(const wxDataViewItem& item, const wxDataViewColumn *column) override;
#if wxUSE_DRAG_AND_DROP
virtual bool DoEnableDropTarget( const wxVector<wxDataFormat>& formats ) override;
#endif // wxUSE_DRAG_AND_DROP
// returns the n-th pointer to a column;
// this method is different from GetColumn(unsigned int pos) because here 'n' is not a position in the control but the n-th
// position in the internal list/array of column pointers
wxDataViewColumn* GetColumnPtr(size_t n) const
{
return m_ColumnPtrs[n];
}
// returns the current being rendered item of the customized renderer (this item is only valid during editing)
wxDataViewItem const& GetCustomRendererItem() const
{
return m_CustomRendererItem;
}
// returns a pointer to a customized renderer (this pointer is only valid during editing)
wxDataViewCustomRenderer* GetCustomRendererPtr() const
{
return m_CustomRendererPtr;
}
// checks if a single item or all items are being deleted
bool IsDeleting() const;
bool IsClearing() const;
// with CG, we need to get the context from an kEventControlDraw event
// unfortunately, the DataBrowser callbacks don't provide the context
// and we need it, so we need to set/remove it before and after draw
// events so we can access it in the callbacks.
void MacSetDrawingContext(void* context)
{
m_cgContext = context;
}
void* MacGetDrawingContext() const
{
return m_cgContext;
}
// sets the currently being edited item of the custom renderer
void SetCustomRendererItem(wxDataViewItem const& NewItem)
{
m_CustomRendererItem = NewItem;
}
// sets the custom renderer
void SetCustomRendererPtr(wxDataViewCustomRenderer* NewCustomRendererPtr)
{
m_CustomRendererPtr = NewCustomRendererPtr;
}
void AdjustAutosizedColumns() const;
virtual wxDataViewColumn *GetCurrentColumn() const override;
virtual wxVisualAttributes GetDefaultAttributes() const override
{
return GetClassDefaultAttributes(GetWindowVariant());
}
static wxVisualAttributes
GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
protected:
// inherited methods from wxDataViewCtrlBase
virtual void DoSetExpanderColumn() override;
virtual void DoSetIndent() override;
virtual void DoExpand(const wxDataViewItem& item, bool expandChildren) override;
virtual wxSize DoGetBestSize() const override;
// event handling
void OnSize(wxSizeEvent &event);
virtual void DoThaw() override;
private:
// initializing of local variables:
void Init();
virtual wxDataViewItem DoGetCurrentItem() const override;
virtual void DoSetCurrentItem(const wxDataViewItem& item) override;
//
// variables
//
// If non-null, describes the item(s) being deleted. This is necessary to
// allow avoiding referencing already deleted items from the native
// callbacks/delegates.
struct wxOSXDVCDeleting* m_Deleting;
// This class can set (and reset) m_Deleting.
friend class wxOSXDVCScopedDeleter;
void* m_cgContext; // pointer to core graphics context
wxDataViewCustomRenderer* m_CustomRendererPtr; // pointer to a valid custom renderer while editing; this class does NOT own the pointer
wxDataViewItem m_CustomRendererItem; // currently edited item by the customrenderer; it is invalid while not editing a custom item
wxDataViewColumnPtrArrayType m_ColumnPtrs; // all column pointers are stored in an array
class wxOSXDataViewModelNotifier* m_ModelNotifier; // stores the model notifier for the control (does not own the notifier)
// wxWidget internal stuff:
wxDECLARE_DYNAMIC_CLASS(wxDataViewCtrl);
wxDECLARE_NO_COPY_CLASS(wxDataViewCtrl);
wxDECLARE_EVENT_TABLE();
};
#endif // _WX_DATAVIEWCTRL_OSX_H_