wxWidgets/include/wx/osx/dataview.h
Vadim Zeitlin 0599fe19d9 Rewrite handling cell value changes in wxOSX/Cocoa wxDVC.
Instead of using a chain of dynamic_cast<>s to find the right type of the
value, construct a wxVariant corresponding to the type of the object we
receive in NSOutlineView:setObjectValue:forTableColumn:byItem and pass it to a
wxDataViewRenderer virtual function.

This fixes assert and allows to edit icon text items under OS X.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62436 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2009-10-17 01:04:26 +00:00

622 lines
19 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: wx/osx/dataview.h
// Purpose: wxDataViewCtrl native implementation header for OSX
// Author:
// Id: $Id$
// 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 wxDataViewRendererNativeData; // class storing environment dependent data for the native renderer
class wxDataViewWidgetImpl; // class used as a common interface for carbon and cocoa implementation
// ---------------------------------------------------------
// wxDataViewRenderer
// ---------------------------------------------------------
class WXDLLIMPEXP_ADV wxDataViewRenderer : public wxDataViewRendererBase
{
public:
//
// constructors / destructor
//
wxDataViewRenderer(wxString const& varianttype, wxDataViewCellMode mode=wxDATAVIEW_CELL_INERT, int align=wxDVR_DEFAULT_ALIGNMENT);
virtual ~wxDataViewRenderer();
//
// inherited methods from wxDataViewRendererBase
//
virtual int GetAlignment() const
{
return m_alignment;
}
virtual wxDataViewCellMode GetMode() const
{
return m_mode;
}
virtual bool GetValue(wxVariant& value) const
{
value = m_value;
return true;
}
virtual void SetAlignment(int align); // carbon: is always identical to the header alignment;
// cocoa: cell alignment is independent from header alignment
virtual void SetMode(wxDataViewCellMode mode);
virtual bool SetValue(wxVariant const& newValue)
{
m_value = newValue;
return true;
}
virtual void EnableEllipsize(wxEllipsizeMode mode = wxELLIPSIZE_MIDDLE);
virtual wxEllipsizeMode GetEllipsizeMode() const;
//
// implementation
//
wxVariant const& GetValue() const
{
return m_value;
}
wxDataViewRendererNativeData* GetNativeData() const
{
return m_NativeDataPtr;
}
virtual bool MacRender() = 0; // a call to the native data browser function to render the data;
// returns true if the data value could be rendered, false otherwise
void SetNativeData(wxDataViewRendererNativeData* newNativeDataPtr);
#if wxOSX_USE_COCOA
// called when a value was edited by user
virtual void OSXOnCellChanged(const wxVariant& value,
const wxDataViewItem& item,
unsigned col);
#endif // Cocoa
private:
//
// variables
//
int m_alignment; // contains the alignment flags
wxDataViewCellMode m_mode; // storing the mode that determines how the cell is going to be shown
wxDataViewRendererNativeData* m_NativeDataPtr; // data used by implementation of the native renderer
wxVariant m_value; // value that is going to be rendered
//
// wxWidget internal stuff
//
DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewRenderer)
};
// ---------------------------------------------------------
// wxDataViewCustomRenderer
// ---------------------------------------------------------
class WXDLLIMPEXP_ADV wxDataViewCustomRenderer: public wxDataViewRenderer
{
public:
//
// constructors / destructor
//
wxDataViewCustomRenderer(wxString const& varianttype=wxT("string"), wxDataViewCellMode mode=wxDATAVIEW_CELL_INERT, int align=wxDVR_DEFAULT_ALIGNMENT);
virtual ~wxDataViewCustomRenderer();
void RenderText( const wxString &text, int xoffset, wxRect cell, wxDC *dc, int state );
//
// methods handling render space
//
virtual wxSize GetSize() const = 0;
//
// methods handling user actions
//
virtual bool Render(wxRect cell, wxDC* dc, int state) = 0;
virtual bool Activate( wxRect WXUNUSED(cell),
wxDataViewModel *WXUNUSED(model),
const wxDataViewItem & WXUNUSED(item),
unsigned int WXUNUSED(col) )
{ return false; }
virtual bool LeftClick( wxPoint WXUNUSED(cursor),
wxRect WXUNUSED(cell),
wxDataViewModel *WXUNUSED(model),
const wxDataViewItem & WXUNUSED(item),
unsigned int WXUNUSED(col) )
{ return false; }
virtual bool StartDrag( wxPoint WXUNUSED(cursor),
wxRect WXUNUSED(cell),
wxDataViewModel *WXUNUSED(model),
const wxDataViewItem & WXUNUSED(item),
unsigned int WXUNUSED(col) )
{ return false; }
//
// device context handling
//
virtual wxDC* GetDC(); // creates a device context and keeps it
//
// implementation
//
virtual bool MacRender();
void SetDC(wxDC* newDCPtr); // this method takes ownership of the pointer
protected:
private:
//
// variables
//
wxControl* m_editorCtrlPtr; // pointer to an in-place editor control
wxDC* m_DCPtr;
//
// wxWidget internal stuff
//
DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewCustomRenderer)
};
// ---------------------------------------------------------
// wxDataViewTextRenderer
// ---------------------------------------------------------
class WXDLLIMPEXP_ADV wxDataViewTextRenderer: public wxDataViewRenderer
{
public:
//
// constructors / destructor
//
wxDataViewTextRenderer(wxString const& varianttype=wxT("string"), wxDataViewCellMode mode=wxDATAVIEW_CELL_INERT, int align=wxDVR_DEFAULT_ALIGNMENT);
//
// inherited functions from wxDataViewRenderer
//
virtual bool MacRender();
protected:
private:
DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewTextRenderer)
};
// ---------------------------------------------------------
// wxDataViewBitmapRenderer
// ---------------------------------------------------------
class WXDLLIMPEXP_ADV wxDataViewBitmapRenderer: public wxDataViewRenderer
{
public:
//
// constructors / destructor
//
wxDataViewBitmapRenderer(wxString const& varianttype=wxT("wxBitmap"), wxDataViewCellMode mode=wxDATAVIEW_CELL_INERT, int align=wxDVR_DEFAULT_ALIGNMENT);
//
// inherited functions from wxDataViewRenderer
//
virtual bool MacRender();
protected:
private:
DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewBitmapRenderer)
};
#if !defined(wxUSE_GENERICDATAVIEWCTRL) && defined(__WXOSX_COCOA__)
// -------------------------------------
// wxDataViewChoiceRenderer
// -------------------------------------
class WXDLLIMPEXP_ADV wxDataViewChoiceRenderer: public wxDataViewRenderer
{
public:
//
// constructors / destructor
//
wxDataViewChoiceRenderer(wxArrayString const& choices,
wxDataViewCellMode mode = wxDATAVIEW_CELL_EDITABLE,
int alignment = wxDVR_DEFAULT_ALIGNMENT );
//
// inherited functions from wxDataViewRenderer
//
virtual bool MacRender();
//
// implementation
//
wxString GetChoice(size_t index) const
{
return m_Choices[index];
}
wxArrayString const& GetChoices() const
{
return m_Choices;
}
private:
//
// variables
//
wxArrayString m_Choices;
DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewChoiceRenderer)
};
#endif
// ---------------------------------------------------------
// wxDataViewIconTextRenderer
// ---------------------------------------------------------
class WXDLLIMPEXP_ADV wxDataViewIconTextRenderer: public wxDataViewRenderer
{
public:
wxDataViewIconTextRenderer(wxString const& varianttype = wxT("wxDataViewIconText"), wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT, int align=wxDVR_DEFAULT_ALIGNMENT);
//
// inherited functions from wxDataViewRenderer
//
virtual bool MacRender();
#if wxOSX_USE_COCOA
// called when a value was edited by user
virtual void OSXOnCellChanged(const wxVariant& value,
const wxDataViewItem& item,
unsigned col);
#endif // Cocoa
protected:
private:
DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewIconTextRenderer)
};
// ---------------------------------------------------------
// wxDataViewToggleRenderer
// ---------------------------------------------------------
class WXDLLIMPEXP_ADV wxDataViewToggleRenderer: public wxDataViewRenderer
{
public:
wxDataViewToggleRenderer(wxString const& varianttype = wxT("bool"), wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT, int align=wxDVR_DEFAULT_ALIGNMENT);
//
// inherited functions from wxDataViewRenderer
//
virtual bool MacRender();
protected:
private:
DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewToggleRenderer)
};
// ---------------------------------------------------------
// wxDataViewProgressRenderer
// ---------------------------------------------------------
class WXDLLIMPEXP_ADV wxDataViewProgressRenderer: public wxDataViewRenderer
{
public:
wxDataViewProgressRenderer(wxString const& label = wxEmptyString, wxString const& varianttype=wxT("long"),
wxDataViewCellMode mode=wxDATAVIEW_CELL_INERT, int align=wxDVR_DEFAULT_ALIGNMENT);
//
// inherited functions from wxDataViewRenderer
//
virtual bool MacRender();
protected:
private:
DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewProgressRenderer)
};
// ---------------------------------------------------------
// wxDataViewDateRenderer
// ---------------------------------------------------------
class WXDLLIMPEXP_ADV wxDataViewDateRenderer: public wxDataViewRenderer
{
public:
wxDataViewDateRenderer(wxString const& varianttype=wxT("datetime"), wxDataViewCellMode mode=wxDATAVIEW_CELL_ACTIVATABLE, int align=wxDVR_DEFAULT_ALIGNMENT);
//
// inherited functions from wxDataViewRenderer
//
virtual bool MacRender();
protected:
private:
DECLARE_DYNAMIC_CLASS_NO_COPY(wxDataViewDateRenderer)
};
// ---------------------------------------------------------
// 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 wxBitmap& 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 { return m_alignment; }
virtual int GetFlags() const { return m_flags; }
virtual int GetMaxWidth() const { return m_maxWidth; }
virtual int GetMinWidth() const { return m_minWidth; }
virtual wxString GetTitle() const { return m_title; }
virtual int GetWidth() const { return m_width; }
virtual bool IsHidden() const { return false; } // TODO
virtual bool IsSortOrderAscending() const { return m_ascending; }
virtual bool IsSortKey() const;
virtual void SetAlignment (wxAlignment align);
virtual void SetBitmap (wxBitmap const& bitmap);
virtual void SetFlags (int flags) { SetIndividualFlags(flags); }
virtual void SetHidden (bool WXUNUSED(hidden)) { } // TODO
virtual void SetMaxWidth (int maxWidth);
virtual void SetMinWidth (int minWidth);
virtual void SetReorderable(bool reorderable);
virtual void SetResizeable (bool resizeable);
virtual void SetSortable (bool sortable);
virtual void SetSortOrder (bool ascending);
virtual void SetTitle (wxString const& title);
virtual void SetWidth (int width);
virtual void SetAsSortKey (bool sort = true);
// implementation only
wxDataViewColumnNativeData* GetNativeData() const
{
return m_NativeDataPtr;
}
void SetNativeData(wxDataViewColumnNativeData* newNativeDataPtr); // class takes ownership of pointer
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_width = width >= 0 ? width : wxDVC_DEFAULT_WIDTH;
m_alignment = align;
}
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 id, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = 0,
const wxValidator& validator = wxDefaultValidator)
{
Init();
Create(parent, id, pos, size, style, validator );
}
~wxDataViewCtrl();
// explicit control creation
bool Create(wxWindow *parent, wxWindowID id, const wxPoint& pos=wxDefaultPosition, const wxSize& size=wxDefaultSize, long style=0,
const wxValidator& validator=wxDefaultValidator);
virtual wxControl* GetMainWindow() // not used for the native implementation
{
return this;
}
// inherited methods from wxDataViewCtrlBase:
virtual bool AssociateModel(wxDataViewModel* model);
virtual bool AppendColumn (wxDataViewColumn* columnPtr);
virtual bool ClearColumns ();
virtual bool DeleteColumn (wxDataViewColumn* columnPtr);
virtual wxDataViewColumn* GetColumn (unsigned int pos) const;
virtual unsigned int GetColumnCount () const;
virtual int GetColumnPosition(const wxDataViewColumn* columnPtr) const;
virtual wxDataViewColumn* GetSortingColumn () const;
virtual bool InsertColumn (unsigned int pos, wxDataViewColumn *col);
virtual bool PrependColumn (wxDataViewColumn* columnPtr);
virtual void Collapse( const wxDataViewItem& item);
virtual void EnsureVisible(const wxDataViewItem& item, const wxDataViewColumn* columnPtr=NULL);
virtual void Expand(const wxDataViewItem& item);
virtual bool IsExpanded(const wxDataViewItem & item) const;
virtual unsigned int GetCount() const;
virtual wxRect GetItemRect(const wxDataViewItem& item, const wxDataViewColumn* columnPtr) const;
virtual wxDataViewItem GetSelection() const;
virtual int GetSelections(wxDataViewItemArray& sel) const;
virtual void HitTest(const wxPoint& point, wxDataViewItem& item, wxDataViewColumn*& columnPtr) const;
virtual bool IsSelected(const wxDataViewItem& item) const;
virtual void SelectAll();
virtual void Select(const wxDataViewItem& item);
virtual void SetSelections(const wxDataViewItemArray& sel);
virtual void Unselect(const wxDataViewItem& item);
virtual void UnselectAll();
//
// 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();
// 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 currently a delete process is running
bool IsDeleting() const
{
return m_Deleting;
}
// 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;
}
// sets the flag indicating a deletion process:
void SetDeleting(bool deleting)
{
m_Deleting = deleting;
}
virtual wxVisualAttributes GetDefaultAttributes() const
{
return GetClassDefaultAttributes(GetWindowVariant());
}
static wxVisualAttributes
GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
protected:
// inherited methods from wxDataViewCtrlBase
virtual void DoSetExpanderColumn();
virtual void DoSetIndent();
virtual wxSize DoGetBestSize() const;
// event handling
void OnSize(wxSizeEvent &event);
void OnMouse(wxMouseEvent &event);
private:
// initializing of local variables:
void Init();
//
// variables
//
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
// after the actual deletion of the item; then, native callback functions/delegates may try to update data of variables that are already deleted;
// if this flag is set all native variable update requests will be ignored
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
// wxWidget internal stuff:
DECLARE_DYNAMIC_CLASS(wxDataViewCtrl)
DECLARE_NO_COPY_CLASS(wxDataViewCtrl)
DECLARE_EVENT_TABLE()
};
#endif // _WX_DATAVIEWCTRL_OSX_H_