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wxWidgets/include/wx/listbase.h
Vadim Zeitlin 17520c84b3 added self-assignment check to wxListItem::operator=() 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@56745 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2008-11-12 14:36:21 +00:00

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///////////////////////////////////////////////////////////////////////////////
// Name: wx/listbase.h
// Purpose: wxListCtrl class
// Author: Vadim Zeitlin
// Modified by:
// Created: 04.12.99
// RCS-ID: $Id$
// Copyright: (c) wxWidgets team
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_LISTBASE_H_BASE_
#define _WX_LISTBASE_H_BASE_
#include "wx/colour.h"
#include "wx/font.h"
#include "wx/gdicmn.h"
#include "wx/event.h"
// ----------------------------------------------------------------------------
// types
// ----------------------------------------------------------------------------
// type of compare function for wxListCtrl sort operation
typedef int (wxCALLBACK *wxListCtrlCompare)(long item1, long item2, long sortData);
// ----------------------------------------------------------------------------
// wxListCtrl constants
// ----------------------------------------------------------------------------
// style flags
#define wxLC_VRULES 0x0001
#define wxLC_HRULES 0x0002
#define wxLC_ICON 0x0004
#define wxLC_SMALL_ICON 0x0008
#define wxLC_LIST 0x0010
#define wxLC_REPORT 0x0020
#define wxLC_ALIGN_TOP 0x0040
#define wxLC_ALIGN_LEFT 0x0080
#define wxLC_AUTOARRANGE 0x0100
#define wxLC_VIRTUAL 0x0200
#define wxLC_EDIT_LABELS 0x0400
#define wxLC_NO_HEADER 0x0800
#define wxLC_NO_SORT_HEADER 0x1000
#define wxLC_SINGLE_SEL 0x2000
#define wxLC_SORT_ASCENDING 0x4000
#define wxLC_SORT_DESCENDING 0x8000
#define wxLC_MASK_TYPE (wxLC_ICON | wxLC_SMALL_ICON | wxLC_LIST | wxLC_REPORT)
#define wxLC_MASK_ALIGN (wxLC_ALIGN_TOP | wxLC_ALIGN_LEFT)
#define wxLC_MASK_SORT (wxLC_SORT_ASCENDING | wxLC_SORT_DESCENDING)
// for compatibility only
#define wxLC_USER_TEXT wxLC_VIRTUAL
// Omitted because
// (a) too much detail
// (b) not enough style flags
// (c) not implemented anyhow in the generic version
//
// #define wxLC_NO_SCROLL
// #define wxLC_NO_LABEL_WRAP
// #define wxLC_OWNERDRAW_FIXED
// #define wxLC_SHOW_SEL_ALWAYS
// Mask flags to tell app/GUI what fields of wxListItem are valid
#define wxLIST_MASK_STATE 0x0001
#define wxLIST_MASK_TEXT 0x0002
#define wxLIST_MASK_IMAGE 0x0004
#define wxLIST_MASK_DATA 0x0008
#define wxLIST_SET_ITEM 0x0010
#define wxLIST_MASK_WIDTH 0x0020
#define wxLIST_MASK_FORMAT 0x0040
// State flags for indicating the state of an item
#define wxLIST_STATE_DONTCARE 0x0000
#define wxLIST_STATE_DROPHILITED 0x0001 // MSW only
#define wxLIST_STATE_FOCUSED 0x0002
#define wxLIST_STATE_SELECTED 0x0004
#define wxLIST_STATE_CUT 0x0008 // MSW only
#define wxLIST_STATE_DISABLED 0x0010 // OS2 only
#define wxLIST_STATE_FILTERED 0x0020 // OS2 only
#define wxLIST_STATE_INUSE 0x0040 // OS2 only
#define wxLIST_STATE_PICKED 0x0080 // OS2 only
#define wxLIST_STATE_SOURCE 0x0100 // OS2 only
// Hit test flags, used in HitTest
#define wxLIST_HITTEST_ABOVE 0x0001 // Above the client area.
#define wxLIST_HITTEST_BELOW 0x0002 // Below the client area.
#define wxLIST_HITTEST_NOWHERE 0x0004 // In the client area but below the last item.
#define wxLIST_HITTEST_ONITEMICON 0x0020 // On the bitmap associated with an item.
#define wxLIST_HITTEST_ONITEMLABEL 0x0080 // On the label (string) associated with an item.
#define wxLIST_HITTEST_ONITEMRIGHT 0x0100 // In the area to the right of an item.
#define wxLIST_HITTEST_ONITEMSTATEICON 0x0200 // On the state icon for a tree view item that is in a user-defined state.
#define wxLIST_HITTEST_TOLEFT 0x0400 // To the left of the client area.
#define wxLIST_HITTEST_TORIGHT 0x0800 // To the right of the client area.
#define wxLIST_HITTEST_ONITEM (wxLIST_HITTEST_ONITEMICON | wxLIST_HITTEST_ONITEMLABEL | wxLIST_HITTEST_ONITEMSTATEICON)
// GetSubItemRect constants
#define wxLIST_GETSUBITEMRECT_WHOLEITEM -1l
// Flags for GetNextItem (MSW only except wxLIST_NEXT_ALL)
enum
{
wxLIST_NEXT_ABOVE, // Searches for an item above the specified item
wxLIST_NEXT_ALL, // Searches for subsequent item by index
wxLIST_NEXT_BELOW, // Searches for an item below the specified item
wxLIST_NEXT_LEFT, // Searches for an item to the left of the specified item
wxLIST_NEXT_RIGHT // Searches for an item to the right of the specified item
};
// Alignment flags for Arrange (MSW only except wxLIST_ALIGN_LEFT)
enum
{
wxLIST_ALIGN_DEFAULT,
wxLIST_ALIGN_LEFT,
wxLIST_ALIGN_TOP,
wxLIST_ALIGN_SNAP_TO_GRID
};
// Column format (MSW only except wxLIST_FORMAT_LEFT)
enum wxListColumnFormat
{
wxLIST_FORMAT_LEFT,
wxLIST_FORMAT_RIGHT,
wxLIST_FORMAT_CENTRE,
wxLIST_FORMAT_CENTER = wxLIST_FORMAT_CENTRE
};
// Autosize values for SetColumnWidth
enum
{
wxLIST_AUTOSIZE = -1,
wxLIST_AUTOSIZE_USEHEADER = -2 // partly supported by generic version
};
// Flag values for GetItemRect
enum
{
wxLIST_RECT_BOUNDS,
wxLIST_RECT_ICON,
wxLIST_RECT_LABEL
};
// Flag values for FindItem (MSW only)
enum
{
wxLIST_FIND_UP,
wxLIST_FIND_DOWN,
wxLIST_FIND_LEFT,
wxLIST_FIND_RIGHT
};
// ----------------------------------------------------------------------------
// wxListItemAttr: a structure containing the visual attributes of an item
// ----------------------------------------------------------------------------
// TODO: this should be renamed to wxItemAttr or something general like this
// and used as base class for wxTextAttr which duplicates this class
// entirely currently
class WXDLLIMPEXP_CORE wxListItemAttr
{
public:
// ctors
wxListItemAttr() { }
wxListItemAttr(const wxColour& colText,
const wxColour& colBack,
const wxFont& font)
: m_colText(colText), m_colBack(colBack), m_font(font)
{
}
// default copy ctor, assignment operator and dtor are ok
// setters
void SetTextColour(const wxColour& colText) { m_colText = colText; }
void SetBackgroundColour(const wxColour& colBack) { m_colBack = colBack; }
void SetFont(const wxFont& font) { m_font = font; }
// accessors
bool HasTextColour() const { return m_colText.Ok(); }
bool HasBackgroundColour() const { return m_colBack.Ok(); }
bool HasFont() const { return m_font.Ok(); }
const wxColour& GetTextColour() const { return m_colText; }
const wxColour& GetBackgroundColour() const { return m_colBack; }
const wxFont& GetFont() const { return m_font; }
// this is almost like assignment operator except it doesn't overwrite the
// fields unset in the source attribute
void AssignFrom(const wxListItemAttr& source)
{
if ( source.HasTextColour() )
SetTextColour(source.GetTextColour());
if ( source.HasBackgroundColour() )
SetBackgroundColour(source.GetBackgroundColour());
if ( source.HasFont() )
SetFont(source.GetFont());
}
private:
wxColour m_colText,
m_colBack;
wxFont m_font;
};
// ----------------------------------------------------------------------------
// wxListItem: the item or column info, used to exchange data with wxListCtrl
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxListItem : public wxObject
{
public:
wxListItem() { Init(); m_attr = NULL; }
wxListItem(const wxListItem& item)
: wxObject(),
m_mask(item.m_mask),
m_itemId(item.m_itemId),
m_col(item.m_col),
m_state(item.m_state),
m_stateMask(item.m_stateMask),
m_text(item.m_text),
m_image(item.m_image),
m_data(item.m_data),
m_format(item.m_format),
m_width(item.m_width),
m_attr(NULL)
{
// copy list item attributes
if ( item.HasAttributes() )
m_attr = new wxListItemAttr(*item.GetAttributes());
}
wxListItem& operator=(const wxListItem& item)
{
if ( &item != this )
{
m_mask = item.m_mask;
m_itemId = item.m_itemId;
m_col = item.m_col;
m_state = item.m_state;
m_stateMask = item.m_stateMask;
m_text = item.m_text;
m_image = item.m_image;
m_data = item.m_data;
m_format = item.m_format;
m_width = item.m_width;
m_attr = item.m_attr ? new wxListItemAttr(*item.m_attr) : NULL;
}
return *this;
}
virtual ~wxListItem() { delete m_attr; }
// resetting
void Clear() { Init(); m_text.clear(); ClearAttributes(); }
void ClearAttributes() { if ( m_attr ) { delete m_attr; m_attr = NULL; } }
// setters
void SetMask(long mask)
{ m_mask = mask; }
void SetId(long id)
{ m_itemId = id; }
void SetColumn(int col)
{ m_col = col; }
void SetState(long state)
{ m_mask |= wxLIST_MASK_STATE; m_state = state; m_stateMask |= state; }
void SetStateMask(long stateMask)
{ m_stateMask = stateMask; }
void SetText(const wxString& text)
{ m_mask |= wxLIST_MASK_TEXT; m_text = text; }
void SetImage(int image)
{ m_mask |= wxLIST_MASK_IMAGE; m_image = image; }
void SetData(long data)
{ m_mask |= wxLIST_MASK_DATA; m_data = data; }
void SetData(void *data)
{ m_mask |= wxLIST_MASK_DATA; m_data = wxPtrToUInt(data); }
void SetWidth(int width)
{ m_mask |= wxLIST_MASK_WIDTH; m_width = width; }
void SetAlign(wxListColumnFormat align)
{ m_mask |= wxLIST_MASK_FORMAT; m_format = align; }
void SetTextColour(const wxColour& colText)
{ Attributes().SetTextColour(colText); }
void SetBackgroundColour(const wxColour& colBack)
{ Attributes().SetBackgroundColour(colBack); }
void SetFont(const wxFont& font)
{ Attributes().SetFont(font); }
// accessors
long GetMask() const { return m_mask; }
long GetId() const { return m_itemId; }
int GetColumn() const { return m_col; }
long GetState() const { return m_state & m_stateMask; }
const wxString& GetText() const { return m_text; }
int GetImage() const { return m_image; }
wxUIntPtr GetData() const { return m_data; }
int GetWidth() const { return m_width; }
wxListColumnFormat GetAlign() const { return (wxListColumnFormat)m_format; }
wxListItemAttr *GetAttributes() const { return m_attr; }
bool HasAttributes() const { return m_attr != NULL; }
wxColour GetTextColour() const
{ return HasAttributes() ? m_attr->GetTextColour() : wxNullColour; }
wxColour GetBackgroundColour() const
{ return HasAttributes() ? m_attr->GetBackgroundColour()
: wxNullColour; }
wxFont GetFont() const
{ return HasAttributes() ? m_attr->GetFont() : wxNullFont; }
// this conversion is necessary to make old code using GetItem() to
// compile
operator long() const { return m_itemId; }
// these members are public for compatibility
long m_mask; // Indicates what fields are valid
long m_itemId; // The zero-based item position
int m_col; // Zero-based column, if in report mode
long m_state; // The state of the item
long m_stateMask;// Which flags of m_state are valid (uses same flags)
wxString m_text; // The label/header text
int m_image; // The zero-based index into an image list
wxUIntPtr m_data; // App-defined data
// For columns only
int m_format; // left, right, centre
int m_width; // width of column
#ifdef __WXPM__
int m_miniImage; // handle to the mini image for OS/2
#endif
protected:
// creates m_attr if we don't have it yet
wxListItemAttr& Attributes()
{
if ( !m_attr )
m_attr = new wxListItemAttr;
return *m_attr;
}
void Init()
{
m_mask = 0;
m_itemId = 0;
m_col = 0;
m_state = 0;
m_stateMask = 0;
m_image = -1;
m_data = 0;
m_format = wxLIST_FORMAT_CENTRE;
m_width = 0;
}
wxListItemAttr *m_attr; // optional pointer to the items style
private:
DECLARE_DYNAMIC_CLASS(wxListItem)
};
// ----------------------------------------------------------------------------
// wxListEvent - the event class for the wxListCtrl notifications
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxListEvent : public wxNotifyEvent
{
public:
wxListEvent(wxEventType commandType = wxEVT_NULL, int winid = 0)
: wxNotifyEvent(commandType, winid)
, m_code(0)
, m_oldItemIndex(0)
, m_itemIndex(0)
, m_col(0)
, m_pointDrag()
, m_item()
, m_editCancelled(false)
{ }
wxListEvent(const wxListEvent& event)
: wxNotifyEvent(event)
, m_code(event.m_code)
, m_oldItemIndex(event.m_oldItemIndex)
, m_itemIndex(event.m_itemIndex)
, m_col(event.m_col)
, m_pointDrag(event.m_pointDrag)
, m_item(event.m_item)
, m_editCancelled(event.m_editCancelled)
{ }
int GetKeyCode() const { return m_code; }
long GetIndex() const { return m_itemIndex; }
int GetColumn() const { return m_col; }
wxPoint GetPoint() const { return m_pointDrag; }
const wxString& GetLabel() const { return m_item.m_text; }
const wxString& GetText() const { return m_item.m_text; }
int GetImage() const { return m_item.m_image; }
long GetData() const { return static_cast<long>(m_item.m_data); }
long GetMask() const { return m_item.m_mask; }
const wxListItem& GetItem() const { return m_item; }
// for wxEVT_COMMAND_LIST_CACHE_HINT only
long GetCacheFrom() const { return m_oldItemIndex; }
long GetCacheTo() const { return m_itemIndex; }
// was label editing canceled? (for wxEVT_COMMAND_LIST_END_LABEL_EDIT only)
bool IsEditCancelled() const { return m_editCancelled; }
void SetEditCanceled(bool editCancelled) { m_editCancelled = editCancelled; }
virtual wxEvent *Clone() const { return new wxListEvent(*this); }
//protected: -- not for backwards compatibility
int m_code;
long m_oldItemIndex; // only for wxEVT_COMMAND_LIST_CACHE_HINT
long m_itemIndex;
int m_col;
wxPoint m_pointDrag;
wxListItem m_item;
protected:
bool m_editCancelled;
private:
DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxListEvent)
};
// ----------------------------------------------------------------------------
// wxListCtrl event macros
// ----------------------------------------------------------------------------
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_BEGIN_DRAG;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_BEGIN_RDRAG;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_END_LABEL_EDIT;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_DELETE_ITEM;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_DELETE_ALL_ITEMS;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_ITEM_SELECTED;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_ITEM_DESELECTED;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_KEY_DOWN;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_INSERT_ITEM;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_COL_CLICK;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_ITEM_MIDDLE_CLICK;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_ITEM_ACTIVATED;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_CACHE_HINT;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_COL_RIGHT_CLICK;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_COL_BEGIN_DRAG;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_COL_DRAGGING;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_COL_END_DRAG;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_LIST_ITEM_FOCUSED;
typedef void (wxEvtHandler::*wxListEventFunction)(wxListEvent&);
#define wxListEventHandler(func) \
(wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(wxListEventFunction, &func)
#define wx__DECLARE_LISTEVT(evt, id, fn) \
wx__DECLARE_EVT1(wxEVT_COMMAND_LIST_ ## evt, id, wxListEventHandler(fn))
#define EVT_LIST_BEGIN_DRAG(id, fn) wx__DECLARE_LISTEVT(BEGIN_DRAG, id, fn)
#define EVT_LIST_BEGIN_RDRAG(id, fn) wx__DECLARE_LISTEVT(BEGIN_RDRAG, id, fn)
#define EVT_LIST_BEGIN_LABEL_EDIT(id, fn) wx__DECLARE_LISTEVT(BEGIN_LABEL_EDIT, id, fn)
#define EVT_LIST_END_LABEL_EDIT(id, fn) wx__DECLARE_LISTEVT(END_LABEL_EDIT, id, fn)
#define EVT_LIST_DELETE_ITEM(id, fn) wx__DECLARE_LISTEVT(DELETE_ITEM, id, fn)
#define EVT_LIST_DELETE_ALL_ITEMS(id, fn) wx__DECLARE_LISTEVT(DELETE_ALL_ITEMS, id, fn)
#define EVT_LIST_KEY_DOWN(id, fn) wx__DECLARE_LISTEVT(KEY_DOWN, id, fn)
#define EVT_LIST_INSERT_ITEM(id, fn) wx__DECLARE_LISTEVT(INSERT_ITEM, id, fn)
#define EVT_LIST_COL_CLICK(id, fn) wx__DECLARE_LISTEVT(COL_CLICK, id, fn)
#define EVT_LIST_COL_RIGHT_CLICK(id, fn) wx__DECLARE_LISTEVT(COL_RIGHT_CLICK, id, fn)
#define EVT_LIST_COL_BEGIN_DRAG(id, fn) wx__DECLARE_LISTEVT(COL_BEGIN_DRAG, id, fn)
#define EVT_LIST_COL_DRAGGING(id, fn) wx__DECLARE_LISTEVT(COL_DRAGGING, id, fn)
#define EVT_LIST_COL_END_DRAG(id, fn) wx__DECLARE_LISTEVT(COL_END_DRAG, id, fn)
#define EVT_LIST_ITEM_SELECTED(id, fn) wx__DECLARE_LISTEVT(ITEM_SELECTED, id, fn)
#define EVT_LIST_ITEM_DESELECTED(id, fn) wx__DECLARE_LISTEVT(ITEM_DESELECTED, id, fn)
#define EVT_LIST_ITEM_RIGHT_CLICK(id, fn) wx__DECLARE_LISTEVT(ITEM_RIGHT_CLICK, id, fn)
#define EVT_LIST_ITEM_MIDDLE_CLICK(id, fn) wx__DECLARE_LISTEVT(ITEM_MIDDLE_CLICK, id, fn)
#define EVT_LIST_ITEM_ACTIVATED(id, fn) wx__DECLARE_LISTEVT(ITEM_ACTIVATED, id, fn)
#define EVT_LIST_ITEM_FOCUSED(id, fn) wx__DECLARE_LISTEVT(ITEM_FOCUSED, id, fn)
#define EVT_LIST_CACHE_HINT(id, fn) wx__DECLARE_LISTEVT(CACHE_HINT, id, fn)
#endif
// _WX_LISTCTRL_H_BASE_
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