53f60d4ab6
wxMSW wxListBox implementation contained the same code as the private LBSendEvent() function in lboxcmn.cpp, so make this function a (protected) member of wxListBoxBase and reuse it instead. Also change its and CalcAndSendEvent() return type to bool to be able to return whether the event was processed or not. As the result of this refactoring, the "is selected" flag is now set correctly for the selection events under MSW (it was always off before). git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@64496 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
151 lines
5.1 KiB
C++
151 lines
5.1 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/listbox.h
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// Purpose: wxListBox class interface
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 22.10.99
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// RCS-ID: $Id$
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// Copyright: (c) wxWidgets team
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_LISTBOX_H_BASE_
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#define _WX_LISTBOX_H_BASE_
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "wx/defs.h"
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#if wxUSE_LISTBOX
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#include "wx/ctrlsub.h" // base class
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// forward declarations are enough here
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class WXDLLIMPEXP_FWD_BASE wxArrayInt;
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class WXDLLIMPEXP_FWD_BASE wxArrayString;
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// ----------------------------------------------------------------------------
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// global data
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// ----------------------------------------------------------------------------
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extern WXDLLIMPEXP_DATA_CORE(const char) wxListBoxNameStr[];
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// ----------------------------------------------------------------------------
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// wxListBox interface is defined by the class wxListBoxBase
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxListBoxBase : public wxControlWithItems
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{
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public:
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wxListBoxBase() { }
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virtual ~wxListBoxBase();
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void InsertItems(unsigned int nItems, const wxString *items, unsigned int pos)
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{ Insert(nItems, items, pos); }
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void InsertItems(const wxArrayString& items, unsigned int pos)
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{ Insert(items, pos); }
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// multiple selection logic
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virtual bool IsSelected(int n) const = 0;
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virtual void SetSelection(int n) { DoSetSelection(n, true); }
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void SetSelection(int n, bool select) { DoSetSelection(n, select); }
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void Deselect(int n) { DoSetSelection(n, false); }
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void DeselectAll(int itemToLeaveSelected = -1);
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virtual bool SetStringSelection(const wxString& s, bool select);
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virtual bool SetStringSelection(const wxString& s)
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{
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return SetStringSelection(s, true);
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}
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// works for single as well as multiple selection listboxes (unlike
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// GetSelection which only works for listboxes with single selection)
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virtual int GetSelections(wxArrayInt& aSelections) const = 0;
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// set the specified item at the first visible item or scroll to max
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// range.
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void SetFirstItem(int n) { DoSetFirstItem(n); }
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void SetFirstItem(const wxString& s);
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// ensures that the given item is visible scrolling the listbox if
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// necessary
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virtual void EnsureVisible(int n);
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// a combination of Append() and EnsureVisible(): appends the item to the
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// listbox and ensures that it is visible i.e. not scrolled out of view
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void AppendAndEnsureVisible(const wxString& s);
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// return true if the listbox allows multiple selection
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bool HasMultipleSelection() const
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{
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return (m_windowStyle & wxLB_MULTIPLE) ||
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(m_windowStyle & wxLB_EXTENDED);
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}
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// override wxItemContainer::IsSorted
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virtual bool IsSorted() const { return HasFlag( wxLB_SORT ); }
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// emulate selecting or deselecting the item event.GetInt() (depending on
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// event.GetExtraLong())
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void Command(wxCommandEvent& event);
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// return the index of the item at this position or wxNOT_FOUND
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int HitTest(const wxPoint& point) const { return DoListHitTest(point); }
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int HitTest(int x, int y) const { return DoListHitTest(wxPoint(x, y)); }
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// For generating events in multiple and extended mode: compare the current
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// selections with the previously recorded ones (in m_oldSelections) and
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// send the appropriate event if they differ, otherwise just return false.
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bool CalcAndSendEvent();
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wxArrayInt m_oldSelections;
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void UpdateOldSelections();
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protected:
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virtual void DoSetFirstItem(int n) = 0;
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virtual void DoSetSelection(int n, bool select) = 0;
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// there is already wxWindow::DoHitTest() so call this one differently
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virtual int DoListHitTest(const wxPoint& WXUNUSED(point)) const
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{ return wxNOT_FOUND; }
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// Send a listbox (de)selection or double click event.
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//
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// Returns true if the event was processed.
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bool SendEvent(wxEventType evtType, int item, bool selected);
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private:
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wxDECLARE_NO_COPY_CLASS(wxListBoxBase);
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};
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// ----------------------------------------------------------------------------
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// include the platform-specific class declaration
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// ----------------------------------------------------------------------------
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#if defined(__WXUNIVERSAL__)
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#include "wx/univ/listbox.h"
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#elif defined(__WXMSW__)
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#include "wx/msw/listbox.h"
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#elif defined(__WXMOTIF__)
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#include "wx/motif/listbox.h"
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#elif defined(__WXGTK20__)
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#include "wx/gtk/listbox.h"
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#elif defined(__WXGTK__)
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#include "wx/gtk1/listbox.h"
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#elif defined(__WXMAC__)
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#include "wx/osx/listbox.h"
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#elif defined(__WXPM__)
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#include "wx/os2/listbox.h"
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#elif defined(__WXCOCOA__)
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#include "wx/cocoa/listbox.h"
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#endif
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#endif // wxUSE_LISTBOX
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#endif
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// _WX_LISTBOX_H_BASE_
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