zdoom-macos-deps/deps/wxwidgets/include/wx-3.1/wx/headercol.h
2021-06-28 10:54:57 +03:00

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///////////////////////////////////////////////////////////////////////////////
// Name: wx/headercol.h
// Purpose: declaration of wxHeaderColumn class
// Author: Vadim Zeitlin
// Created: 2008-12-02
// Copyright: (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_HEADERCOL_H_
#define _WX_HEADERCOL_H_
#include "wx/bitmap.h"
#if wxUSE_HEADERCTRL
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
enum
{
// special value for column width meaning unspecified/default
wxCOL_WIDTH_DEFAULT = -1,
// size the column automatically to fit all values
wxCOL_WIDTH_AUTOSIZE = -2
};
// bit masks for the various column attributes
enum
{
// column can be resized (included in default flags)
wxCOL_RESIZABLE = 1,
// column can be clicked to toggle the sort order by its contents
wxCOL_SORTABLE = 2,
// column can be dragged to change its order (included in default)
wxCOL_REORDERABLE = 4,
// column is not shown at all
wxCOL_HIDDEN = 8,
// default flags for wxHeaderColumn ctor
wxCOL_DEFAULT_FLAGS = wxCOL_RESIZABLE | wxCOL_REORDERABLE
};
// ----------------------------------------------------------------------------
// wxHeaderColumn: interface for a column in a header of controls such as
// wxListCtrl, wxDataViewCtrl or wxGrid
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxHeaderColumn
{
public:
// ctors and dtor
// --------------
/*
Derived classes must provide ctors with the following signatures
(notice that they shouldn't be explicit to allow passing strings/bitmaps
directly to methods such wxHeaderCtrl::AppendColumn()):
wxHeaderColumn(const wxString& title,
int width = wxCOL_WIDTH_DEFAULT,
wxAlignment align = wxALIGN_NOT,
int flags = wxCOL_DEFAULT_FLAGS);
wxHeaderColumn(const wxBitmap &bitmap,
int width = wxDVC_DEFAULT_WIDTH,
wxAlignment align = wxALIGN_CENTER,
int flags = wxCOL_DEFAULT_FLAGS);
*/
// virtual dtor for the base class to avoid gcc warnings even though we
// don't normally delete the objects of this class via a pointer to
// wxHeaderColumn so it's not necessary, strictly speaking
virtual ~wxHeaderColumn() { }
// getters for various attributes
// ------------------------------
// notice that wxHeaderColumn only provides getters as this is all the
// wxHeaderCtrl needs, various derived class must also provide some way to
// change these attributes but this can be done either at the column level
// (in which case they should inherit from wxSettableHeaderColumn) or via
// the methods of the main control in which case you don't need setters in
// the column class at all
// title is the string shown for this column
virtual wxString GetTitle() const = 0;
// bitmap shown (instead of text) in the column header
virtual wxBitmap GetBitmap() const = 0; \
// width of the column in pixels, can be set to wxCOL_WIDTH_DEFAULT meaning
// unspecified/default
virtual int GetWidth() const = 0;
// minimal width can be set for resizable columns to forbid resizing them
// below the specified size (set to 0 to remove)
virtual int GetMinWidth() const = 0;
// alignment of the text: wxALIGN_CENTRE, wxALIGN_LEFT or wxALIGN_RIGHT
virtual wxAlignment GetAlignment() const = 0;
// flags manipulations:
// --------------------
// notice that while we make GetFlags() pure virtual here and implement the
// individual flags access in terms of it, for some derived classes it is
// more natural to implement access to each flag individually, in which
// case they can use our GetFromIndividualFlags() helper below to implement
// GetFlags()
// retrieve all column flags at once: combination of wxCOL_XXX values above
virtual int GetFlags() const = 0;
bool HasFlag(int flag) const { return (GetFlags() & flag) != 0; }
// wxCOL_RESIZABLE
virtual bool IsResizeable() const
{ return HasFlag(wxCOL_RESIZABLE); }
// wxCOL_SORTABLE
virtual bool IsSortable() const
{ return HasFlag(wxCOL_SORTABLE); }
// wxCOL_REORDERABLE
virtual bool IsReorderable() const
{ return HasFlag(wxCOL_REORDERABLE); }
// wxCOL_HIDDEN
virtual bool IsHidden() const
{ return HasFlag(wxCOL_HIDDEN); }
bool IsShown() const
{ return !IsHidden(); }
// sorting
// -------
// return true if the column is the one currently used for sorting
virtual bool IsSortKey() const = 0;
// for sortable columns indicate whether we should sort in ascending or
// descending order (this should only be taken into account if IsSortKey())
virtual bool IsSortOrderAscending() const = 0;
protected:
// helper for the class overriding IsXXX()
int GetFromIndividualFlags() const;
};
// ----------------------------------------------------------------------------
// wxSettableHeaderColumn: column which allows to change its fields too
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxSettableHeaderColumn : public wxHeaderColumn
{
public:
virtual void SetTitle(const wxString& title) = 0;
virtual void SetBitmap(const wxBitmap& bitmap) = 0;
virtual void SetWidth(int width) = 0;
virtual void SetMinWidth(int minWidth) = 0;
virtual void SetAlignment(wxAlignment align) = 0;
// see comment for wxHeaderColumn::GetFlags() about the relationship
// between SetFlags() and Set{Sortable,Reorderable,...}
// change, set, clear, toggle or test for any individual flag
virtual void SetFlags(int flags) = 0;
void ChangeFlag(int flag, bool set);
void SetFlag(int flag);
void ClearFlag(int flag);
void ToggleFlag(int flag);
virtual void SetResizeable(bool resizable)
{ ChangeFlag(wxCOL_RESIZABLE, resizable); }
virtual void SetSortable(bool sortable)
{ ChangeFlag(wxCOL_SORTABLE, sortable); }
virtual void SetReorderable(bool reorderable)
{ ChangeFlag(wxCOL_REORDERABLE, reorderable); }
virtual void SetHidden(bool hidden)
{ ChangeFlag(wxCOL_HIDDEN, hidden); }
// This function can be called to indicate that this column is not used for
// sorting any more. Under some platforms it's not necessary to do anything
// in this case as just setting another column as a sort key takes care of
// everything but under MSW we currently need to call this explicitly to
// reset the sort indicator displayed on the column.
virtual void UnsetAsSortKey() { }
virtual void SetSortOrder(bool ascending) = 0;
void ToggleSortOrder() { SetSortOrder(!IsSortOrderAscending()); }
protected:
// helper for the class overriding individual SetXXX() methods instead of
// overriding SetFlags()
void SetIndividualFlags(int flags);
};
// ----------------------------------------------------------------------------
// wxHeaderColumnSimple: trivial generic implementation of wxHeaderColumn
// ----------------------------------------------------------------------------
class wxHeaderColumnSimple : public wxSettableHeaderColumn
{
public:
// ctors and dtor
wxHeaderColumnSimple(const wxString& title,
int width = wxCOL_WIDTH_DEFAULT,
wxAlignment align = wxALIGN_NOT,
int flags = wxCOL_DEFAULT_FLAGS)
: m_title(title),
m_width(width),
m_align(align),
m_flags(flags)
{
Init();
}
wxHeaderColumnSimple(const wxBitmap& bitmap,
int width = wxCOL_WIDTH_DEFAULT,
wxAlignment align = wxALIGN_CENTER,
int flags = wxCOL_DEFAULT_FLAGS)
: m_bitmap(bitmap),
m_width(width),
m_align(align),
m_flags(flags)
{
Init();
}
// implement base class pure virtuals
virtual void SetTitle(const wxString& title) wxOVERRIDE { m_title = title; }
virtual wxString GetTitle() const wxOVERRIDE { return m_title; }
virtual void SetBitmap(const wxBitmap& bitmap) wxOVERRIDE { m_bitmap = bitmap; }
wxBitmap GetBitmap() const wxOVERRIDE { return m_bitmap; }
virtual void SetWidth(int width) wxOVERRIDE { m_width = width; }
virtual int GetWidth() const wxOVERRIDE { return m_width; }
virtual void SetMinWidth(int minWidth) wxOVERRIDE { m_minWidth = minWidth; }
virtual int GetMinWidth() const wxOVERRIDE { return m_minWidth; }
virtual void SetAlignment(wxAlignment align) wxOVERRIDE { m_align = align; }
virtual wxAlignment GetAlignment() const wxOVERRIDE { return m_align; }
virtual void SetFlags(int flags) wxOVERRIDE { m_flags = flags; }
virtual int GetFlags() const wxOVERRIDE { return m_flags; }
virtual bool IsSortKey() const wxOVERRIDE { return m_sort; }
virtual void UnsetAsSortKey() wxOVERRIDE { m_sort = false; }
virtual void SetSortOrder(bool ascending) wxOVERRIDE
{
m_sort = true;
m_sortAscending = ascending;
}
virtual bool IsSortOrderAscending() const wxOVERRIDE { return m_sortAscending; }
private:
// common part of all ctors
void Init()
{
m_minWidth = 0;
m_sort = false;
m_sortAscending = true;
}
wxString m_title;
wxBitmap m_bitmap;
int m_width,
m_minWidth;
wxAlignment m_align;
int m_flags;
bool m_sort,
m_sortAscending;
};
#endif // wxUSE_HEADERCTRL
#endif // _WX_HEADERCOL_H_