wxWidgets/include/wx/headerctrl.h
2008-12-08 11:20:51 +00:00

297 lines
9.7 KiB
C++

///////////////////////////////////////////////////////////////////////////////
// Name: wx/headerctrl.h
// Purpose: wxHeaderCtrlBase class: interface of wxHeaderCtrl
// Author: Vadim Zeitlin
// Created: 2008-12-01
// RCS-ID: $Id$
// Copyright: (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_HEADERCTRL_H_
#define _WX_HEADERCTRL_H_
#include "wx/control.h"
#include "wx/vector.h"
#include "wx/headercol.h"
// notice that the classes in this header are defined in the core library even
// although currently they're only used by wxGrid which is in wxAdv because we
// plan to use it in wxListCtrl which is in core too in the future
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
enum
{
// allow column drag and drop
wxHD_DRAGDROP = 0x0001,
// style used by default when creating the control
wxHD_DEFAULT_STYLE = wxHD_DRAGDROP
};
extern WXDLLIMPEXP_DATA_CORE(const char) wxHeaderCtrlNameStr[];
// ----------------------------------------------------------------------------
// wxHeaderCtrlBase defines the interface of a header control
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxHeaderCtrlBase : public wxControl
{
public:
/*
Derived classes must provide default ctor as well as a ctor and
Create() function with the following signatures:
wxHeaderCtrl(wxWindow *parent,
wxWindowID winid = wxID_ANY,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = wxHD_DEFAULT_STYLE,
const wxString& name = wxHeaderCtrlNameStr);
bool Create(wxWindow *parent,
wxWindowID winid = wxID_ANY,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = wxHD_DEFAULT_STYLE,
const wxString& name = wxHeaderCtrlNameStr);
*/
// column-related methods
// ----------------------
// set the number of columns in the control
//
// this also calls UpdateColumn() for all columns
void SetColumnCount(unsigned int count) { DoSetCount(count); }
// return the number of columns in the control as set by SetColumnCount()
unsigned int GetColumnCount() const { return DoGetCount(); }
// return whether the control has any columns
bool IsEmpty() const { return DoGetCount() == 0; }
// update the column with the given index
void UpdateColumn(unsigned int idx)
{
wxCHECK_RET( idx < GetColumnCount(), "invalid column index" );
DoUpdate(idx);
}
// implementation only from now on
// -------------------------------
// the user doesn't need to TAB to this control
virtual bool AcceptsFocusFromKeyboard() const { return false; }
// this method is only overridden in order to synchronize the control with
// the main window when it is scrolled, the derived class must implement
// DoScrollHorz()
virtual void ScrollWindow(int dx, int dy, const wxRect *rect = NULL);
protected:
// this method must be implemented by the derived classes to return the
// information for the given column
virtual wxHeaderColumnBase& GetColumn(unsigned int idx) = 0;
private:
// methods implementing our public API and defined in platform-specific
// implementations
virtual void DoSetCount(unsigned int count) = 0;
virtual unsigned int DoGetCount() const = 0;
virtual void DoUpdate(unsigned int idx) = 0;
virtual void DoScrollHorz(int dx) = 0;
// this window doesn't look nice with the border so don't use it by default
virtual wxBorder GetDefaultBorder() const { return wxBORDER_NONE; }
};
// ----------------------------------------------------------------------------
// wxHeaderCtrl: port-specific header control implementation, notice that this
// is still an ABC which is meant to be used as part of another
// control, see wxHeaderCtrlSimple for a standalone version
// ----------------------------------------------------------------------------
#if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
#include "wx/msw/headerctrl.h"
#else
#define wxHAS_GENERIC_HEADERCTRL
#include "wx/generic/headerctrlg.h"
#endif // platform
// ----------------------------------------------------------------------------
// wxHeaderCtrlSimple: concrete header control which can be used standalone
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxHeaderCtrlSimple : public wxHeaderCtrl
{
public:
// control creation
// ----------------
wxHeaderCtrlSimple() { Init(); }
wxHeaderCtrlSimple(wxWindow *parent,
wxWindowID winid = wxID_ANY,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = wxHD_DEFAULT_STYLE,
const wxString& name = wxHeaderCtrlNameStr)
{
Init();
Create(parent, winid, pos, size, style, name);
}
// managing the columns
// --------------------
// insert the column at the given position, using GetColumnCount() as
// position appends it at the end
void InsertColumn(const wxHeaderColumnSimple& col, unsigned int idx)
{
wxCHECK_RET( idx <= GetColumnCount(), "invalid column index" );
DoInsert(col, idx);
}
// append the column to the end of the control
void AppendColumn(const wxHeaderColumnSimple& col)
{
DoInsert(col, GetColumnCount());
}
// delete the column at the given index
void DeleteColumn(unsigned int idx)
{
wxCHECK_RET( idx < GetColumnCount(), "invalid column index" );
DoDelete(idx);
}
// delete all the existing columns
void DeleteAllColumns();
// modifying columns
// -----------------
// show or hide the column, notice that even when a column is hidden we
// still account for it when using indices
void ShowColumn(unsigned int idx, bool show = true)
{
wxCHECK_RET( idx < GetColumnCount(), "invalid column index" );
DoShowColumn(idx, show);
}
void HideColumn(unsigned int idx)
{
ShowColumn(idx, false);
}
// indicate that the column is used for sorting
void ShowSortIndicator(unsigned int idx, bool ascending = true)
{
wxCHECK_RET( idx < GetColumnCount(), "invalid column index" );
DoShowSortIndicator(idx, ascending);
}
// remove the sort indicator completely
void RemoveSortIndicator();
protected:
virtual wxHeaderColumnBase& GetColumn(unsigned int idx);
private:
// functions implementing our public API
void DoInsert(const wxHeaderColumnSimple& col, unsigned int idx);
void DoDelete(unsigned int idx);
void DoShowColumn(unsigned int idx, bool show);
void DoShowSortIndicator(unsigned int idx, bool ascending);
// common part of all ctors
void Init();
// bring the column count in sync with the number of columns we store
void UpdateColumnCount() { SetColumnCount(m_cols.size()); }
// all our current columns
typedef wxVector<wxHeaderColumnSimple> Columns;
Columns m_cols;
// the column currently used for sorting or -1 if none
unsigned int m_sortKey;
DECLARE_NO_COPY_CLASS(wxHeaderCtrlSimple)
};
// ----------------------------------------------------------------------------
// wxHeaderCtrl events
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxHeaderCtrlEvent : public wxNotifyEvent
{
public:
wxHeaderCtrlEvent(wxEventType commandType = wxEVT_NULL, int winid = 0)
: wxNotifyEvent(commandType, winid)
{
}
wxHeaderCtrlEvent(const wxHeaderCtrlEvent& event)
: wxNotifyEvent(event),
m_col(event.m_col)
{
}
int GetColumn() const { return m_col; }
void SetColumn(int col) { m_col = col; }
virtual wxEvent *Clone() const { return new wxHeaderCtrlEvent(*this); }
protected:
// the column affected by the event
int m_col;
private:
DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxHeaderCtrlEvent)
};
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_HEADER_CLICK;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_HEADER_RIGHT_CLICK;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_HEADER_MIDDLE_CLICK;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_HEADER_DCLICK;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_HEADER_RIGHT_DCLICK;
extern WXDLLIMPEXP_CORE const wxEventType wxEVT_COMMAND_HEADER_MIDDLE_DCLICK;
typedef void (wxEvtHandler::*wxHeaderCtrlEventFunction)(wxHeaderCtrlEvent&);
#define wxHeaderCtrlEventHandler(func) \
(wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent( \
wxHeaderCtrlEventFunction, &func)
#define wx__DECLARE_HEADER_EVT(evt, id, fn) \
wx__DECLARE_EVT1(wxEVT_COMMAND_HEADER_ ## evt, id, wxHeaderCtrlEventHandler(fn))
#define EVT_HEADER_CLICK(id, fn) wx__DECLARE_HEADER_EVT(CLICK, id, fn)
#define EVT_HEADER_RIGHT_CLICK(id, fn) wx__DECLARE_HEADER_EVT(RIGHT_CLICK, id, fn)
#define EVT_HEADER_MIDDLE_CLICK(id, fn) wx__DECLARE_HEADER_EVT(MIDDLE_CLICK, id, fn)
#define EVT_HEADER_DCLICK(id, fn) wx__DECLARE_HEADER_EVT(DCLICK, id, fn)
#define EVT_HEADER_RIGHT_DCLICK(id, fn) wx__DECLARE_HEADER_EVT(RIGHT_DCLICK, id, fn)
#define EVT_HEADER_MIDDLE_DCLICK(id, fn) wx__DECLARE_HEADER_EVT(MIDDLE_DCLICK, id, fn)
#endif // _WX_HEADERCTRL_H_