618a5e382a
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11404 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
340 lines
16 KiB
C++
340 lines
16 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: treebase.h
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// Purpose: wxTreeCtrl base classes and types
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// Author: Julian Smart et al
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// Modified by:
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// Created: 01/02/97
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// RCS-ID: $Id$
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// Copyright: (c) 1997,1998 Robert Roebling
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_TREEBASE_H_
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#define _WX_TREEBASE_H_
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#ifdef __GNUG__
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#pragma interface "treebase.h"
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#endif
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#if wxUSE_TREECTRL
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#include "wx/window.h" // for wxClientData
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#include "wx/event.h"
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// ----------------------------------------------------------------------------
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// wxTreeItemId identifies an element of the tree. In this implementation, it's
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// just a trivial wrapper around Win32 HTREEITEM or a pointer to some private
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// data structure in the generic version. It's opaque for the application and
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// the only method which can be used by user code is IsOk().
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// ----------------------------------------------------------------------------
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// Using this typedef removes an ambiguity when calling Remove()
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typedef unsigned long wxTreeItemIdValue;
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class WXDLLEXPORT wxTreeItemId
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{
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public:
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// ctors
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// 0 is invalid value for HTREEITEM
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wxTreeItemId() { m_pItem = 0; }
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// this one is used in the generic version
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wxTreeItemId(void *pItem) { m_pItem = (long) pItem; }
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// and this one under MSW
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wxTreeItemId(long lItem) { m_pItem = lItem; }
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// default copy ctor/assignment operator are ok for us
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// accessors
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// is this a valid tree item?
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bool IsOk() const { return m_pItem != 0; }
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// deprecated: only for compatibility
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operator wxTreeItemIdValue() const { return m_pItem; }
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wxTreeItemIdValue m_pItem;
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};
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// ----------------------------------------------------------------------------
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// wxTreeItemData is some (arbitrary) user class associated with some item. The
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// main advantage of having this class (compared to old untyped interface) is
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// that wxTreeItemData's are destroyed automatically by the tree and, as this
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// class has virtual dtor, it means that the memory will be automatically
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// freed. OTOH, we don't just use wxObject instead of wxTreeItemData because
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// the size of this class is critical: in any real application, each tree leaf
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// will have wxTreeItemData associated with it and number of leaves may be
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// quite big.
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//
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// Because the objects of this class are deleted by the tree, they should
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// always be allocated on the heap!
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxTreeItemData: public wxClientData
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{
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friend class WXDLLEXPORT wxTreeCtrl;
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friend class WXDLLEXPORT wxGenericTreeCtrl;
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public:
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// creation/destruction
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// --------------------
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// default ctor
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wxTreeItemData() { }
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// default copy ctor/assignment operator are ok
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// accessor: get the item associated with us
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const wxTreeItemId& GetId() const { return m_pItem; }
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void SetId(const wxTreeItemId& id) { m_pItem = id; }
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protected:
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wxTreeItemId m_pItem;
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};
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WX_DEFINE_EXPORTED_ARRAY(wxTreeItemId, wxArrayTreeItemIds);
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// enum for different images associated with a treectrl item
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enum wxTreeItemIcon
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{
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wxTreeItemIcon_Normal, // not selected, not expanded
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wxTreeItemIcon_Selected, // selected, not expanded
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wxTreeItemIcon_Expanded, // not selected, expanded
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wxTreeItemIcon_SelectedExpanded, // selected, expanded
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wxTreeItemIcon_Max
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};
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enum wxButtonImage // effectively the same as wxTreeItemIcon
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{
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wxCLOSED_BUTTON = 0, // closed, not selected
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wxCLOSED_BUTTON_SELECTED, // closed, selected
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wxOPEN_BUTTON, // open, not selected
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wxOPEN_BUTTON_SELECTED // open, selected
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};
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/*
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* wxTreeCtrl flags
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*/
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// TODO: maybe renumber these?
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#define wxTR_NO_BUTTONS 0x0000 // for convenience
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#define wxTR_HAS_BUTTONS 0x0004 // generates a +/- button
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#define wxTR_TWIST_BUTTONS 0x0008 // twister buttons
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#define wxTR_NO_LINES 0x0100 // don't generate level connectors
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#define wxTR_MAC_BUTTONS wxTR_TWIST_BUTTONS // backward compatibility
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#define wxTR_SINGLE 0x0000 // for convenience
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#define wxTR_MULTIPLE 0x0020 // can select multiple items
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#define wxTR_EXTENDED 0x0040 // TODO: allow extended selection
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#define wxTR_EDIT_LABELS 0x0200 // can edit item labels
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#define wxTR_LINES_AT_ROOT 0x0010 // specific to wxMSW
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#define wxTR_HIDE_ROOT 0x0800 // don't display root node
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#define wxTR_ROW_LINES 0x0400 // put border around items
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#define wxTR_HAS_VARIABLE_ROW_HEIGHT 0x0080 // what it says
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// TODO: different default styles for wxGTK, wxMotif, whatever?
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#ifdef __WXMAC__
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#define wxTR_DEFAULT_STYLE (wxTR_TWIST_BUTTONS|wxTR_NO_LINES|wxTR_ROW_LINES)
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#else
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#define wxTR_DEFAULT_STYLE (wxTR_HAS_BUTTONS|wxTR_LINES_AT_ROOT)
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#endif
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// values for the `flags' parameter of wxTreeCtrl::HitTest() which determine
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// where exactly the specified point is situated:
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static const int wxTREE_HITTEST_ABOVE = 0x0001;
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static const int wxTREE_HITTEST_BELOW = 0x0002;
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static const int wxTREE_HITTEST_NOWHERE = 0x0004;
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// on the button associated with an item.
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static const int wxTREE_HITTEST_ONITEMBUTTON = 0x0008;
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// on the bitmap associated with an item.
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static const int wxTREE_HITTEST_ONITEMICON = 0x0010;
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// on the indent associated with an item.
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static const int wxTREE_HITTEST_ONITEMINDENT = 0x0020;
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// on the label (string) associated with an item.
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static const int wxTREE_HITTEST_ONITEMLABEL = 0x0040;
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// on the right of the label associated with an item.
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static const int wxTREE_HITTEST_ONITEMRIGHT = 0x0080;
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// on the label (string) associated with an item.
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static const int wxTREE_HITTEST_ONITEMSTATEICON = 0x0100;
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// on the left of the wxTreeCtrl.
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static const int wxTREE_HITTEST_TOLEFT = 0x0200;
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// on the right of the wxTreeCtrl.
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static const int wxTREE_HITTEST_TORIGHT = 0x0400;
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// on the upper part (first half) of the item.
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static const int wxTREE_HITTEST_ONITEMUPPERPART = 0x0800;
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// on the lower part (second half) of the item.
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static const int wxTREE_HITTEST_ONITEMLOWERPART = 0x1000;
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// anywhere on the item
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static const int wxTREE_HITTEST_ONITEM = wxTREE_HITTEST_ONITEMICON |
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wxTREE_HITTEST_ONITEMLABEL;
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// tree ctrl default name
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WXDLLEXPORT_DATA(extern const wxChar*) wxTreeCtrlNameStr;
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// ----------------------------------------------------------------------------
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// wxTreeItemAttr: a structure containing the visual attributes of an item
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxTreeItemAttr
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{
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public:
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// ctors
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wxTreeItemAttr() { }
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wxTreeItemAttr(const wxColour& colText,
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const wxColour& colBack,
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const wxFont& font)
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: m_colText(colText), m_colBack(colBack), m_font(font) { }
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// setters
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void SetTextColour(const wxColour& colText) { m_colText = colText; }
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void SetBackgroundColour(const wxColour& colBack) { m_colBack = colBack; }
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void SetFont(const wxFont& font) { m_font = font; }
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// accessors
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bool HasTextColour() const { return m_colText.Ok(); }
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bool HasBackgroundColour() const { return m_colBack.Ok(); }
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bool HasFont() const { return m_font.Ok(); }
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const wxColour& GetTextColour() const { return m_colText; }
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const wxColour& GetBackgroundColour() const { return m_colBack; }
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const wxFont& GetFont() const { return m_font; }
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private:
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wxColour m_colText,
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m_colBack;
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wxFont m_font;
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};
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// ----------------------------------------------------------------------------
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// wxTreeEvent is a special class for all events associated with tree controls
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//
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// NB: note that not all accessors make sense for all events, see the event
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// descriptions below
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxTreeEvent : public wxNotifyEvent
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{
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friend class WXDLLEXPORT wxTreeCtrl;
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friend class WXDLLEXPORT wxGenericTreeCtrl;
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public:
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wxTreeEvent(wxEventType commandType = wxEVT_NULL, int id = 0);
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// accessors
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// get the item on which the operation was performed or the newly
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// selected item for wxEVT_COMMAND_TREE_SEL_CHANGED/ING events
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wxTreeItemId GetItem() const { return m_item; }
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// for wxEVT_COMMAND_TREE_SEL_CHANGED/ING events, get the previously
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// selected item
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wxTreeItemId GetOldItem() const { return m_itemOld; }
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// the point where the mouse was when the drag operation started (for
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// wxEVT_COMMAND_TREE_BEGIN_(R)DRAG events only) or click position
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wxPoint GetPoint() const { return m_pointDrag; }
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// keyboard code (for wxEVT_COMMAND_TREE_KEY_DOWN only)
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int GetCode() const { return m_code; }
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// label (for EVT_TREE_{BEGIN|END}_LABEL_EDIT only)
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const wxString& GetLabel() const { return m_label; }
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private:
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// we could probably save some space by using union here
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int m_code;
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wxTreeItemId m_item,
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m_itemOld;
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wxPoint m_pointDrag;
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wxString m_label;
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};
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typedef void (wxEvtHandler::*wxTreeEventFunction)(wxTreeEvent&);
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// ----------------------------------------------------------------------------
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// tree control events and macros for handling them
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// ----------------------------------------------------------------------------
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BEGIN_DECLARE_EVENT_TYPES()
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_BEGIN_DRAG, 600)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_BEGIN_RDRAG, 601)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, 602)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_END_LABEL_EDIT, 603)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_DELETE_ITEM, 604)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_GET_INFO, 605)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_SET_INFO, 606)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_EXPANDED, 607)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_EXPANDING, 608)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_COLLAPSED, 609)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_COLLAPSING, 610)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_SEL_CHANGED, 611)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_SEL_CHANGING, 612)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_KEY_DOWN, 613)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_ACTIVATED, 614)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK, 615)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_MIDDLE_CLICK, 616)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_END_DRAG, 617)
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END_DECLARE_EVENT_TYPES()
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// GetItem() returns the item being dragged, GetPoint() the mouse coords
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//
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// if you call event.Allow(), the drag operation will start and a
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// EVT_TREE_END_DRAG event will be sent when the drag is over.
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#define EVT_TREE_BEGIN_DRAG(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_BEGIN_DRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
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#define EVT_TREE_BEGIN_RDRAG(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_BEGIN_RDRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
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// GetItem() is the item on which the drop occured (if any) and GetPoint() the
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// current mouse coords
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#define EVT_TREE_END_DRAG(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_END_DRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
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// GetItem() returns the itme whose label is being edited, GetLabel() returns
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// the current item label for BEGIN and the would be new one for END.
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//
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// Vetoing BEGIN event means that label editing won't happen at all,
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// vetoing END means that the new value is discarded and the old one kept
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#define EVT_TREE_BEGIN_LABEL_EDIT(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
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#define EVT_TREE_END_LABEL_EDIT(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_END_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
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// provide/update information about GetItem() item
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#define EVT_TREE_GET_INFO(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_GET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
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#define EVT_TREE_SET_INFO(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_SET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
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// GetItem() is the item being expanded/collapsed, the "ING" versions can use
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#define EVT_TREE_ITEM_EXPANDED(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_ITEM_EXPANDED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
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#define EVT_TREE_ITEM_EXPANDING(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_ITEM_EXPANDING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
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#define EVT_TREE_ITEM_COLLAPSED(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_ITEM_COLLAPSED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
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#define EVT_TREE_ITEM_COLLAPSING(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_ITEM_COLLAPSING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL ),
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// GetOldItem() is the item which had the selection previously, GetItem() is
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// the item which acquires selection
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#define EVT_TREE_SEL_CHANGED(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_SEL_CHANGED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL ),
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#define EVT_TREE_SEL_CHANGING(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_SEL_CHANGING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL ),
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// GetCode() returns the key code
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// NB: this is the only message for which GetItem() is invalid (you may get the
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// item from GetSelection())
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#define EVT_TREE_KEY_DOWN(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_KEY_DOWN, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL ),
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// GetItem() returns the item being deleted, the associated data (if any) will
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// be deleted just after the return of this event handler (if any)
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#define EVT_TREE_DELETE_ITEM(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_DELETE_ITEM, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
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// GetItem() returns the item that was activated (double click, enter, space)
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#define EVT_TREE_ITEM_ACTIVATED(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_ITEM_ACTIVATED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL ),
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// GetItem() returns the item that was clicked on
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#define EVT_TREE_ITEM_RIGHT_CLICK(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL ),
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#define EVT_TREE_ITEM_MIDDLE_CLICK(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_ITEM_MIDDLE_CLICK, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL ),
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#endif // wxUSE_TREECTRL
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#endif // _WX_TREEBASE_H_
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