wxWidgets/include/wx/htmllbox.h
Robin Dunn 0c8392cac2 Added wxRTTI for the new wxVScrolledWindow, wxVListBox, and
wxHtmlListBox classes.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@22712 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2003-08-08 21:23:33 +00:00

129 lines
4.3 KiB
C++

///////////////////////////////////////////////////////////////////////////////
// Name: wx/htmllbox.h
// Purpose: wxHtmlListBox is a listbox whose items are wxHtmlCells
// Author: Vadim Zeitlin
// Modified by:
// Created: 31.05.03
// RCS-ID: $Id$
// Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_HTMLLBOX_H_
#define _WX_HTMLLBOX_H_
#include "wx/vlbox.h" // base class
class WXDLLIMPEXP_HTML wxHtmlCell;
class WXDLLIMPEXP_HTML wxHtmlWinParser;
class WXDLLIMPEXP_HTML wxHtmlListBoxCache;
class WXDLLIMPEXP_HTML wxHtmlListBoxStyle;
// ----------------------------------------------------------------------------
// wxHtmlListBox
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_HTML wxHtmlListBox : public wxVListBox
{
DECLARE_ABSTRACT_CLASS(wxHtmlListBox)
public:
// constructors and such
// ---------------------
// default constructor, you must call Create() later
wxHtmlListBox() { Init(); }
// normal constructor which calls Create() internally
wxHtmlListBox(wxWindow *parent,
wxWindowID id = wxID_ANY,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = 0,
const wxString& name = wxVListBoxNameStr)
{
Init();
(void)Create(parent, id, pos, size, style, name);
}
// really creates the control and sets the initial number of items in it
// (which may be changed later with SetItemCount())
//
// the only special style which may be specified here is wxLB_MULTIPLE
//
// returns true on success or false if the control couldn't be created
bool Create(wxWindow *parent,
wxWindowID id = wxID_ANY,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = 0,
const wxString& name = wxVListBoxNameStr);
// destructor cleans up whatever resources we use
virtual ~wxHtmlListBox();
// override some base class virtuals
virtual void RefreshAll();
virtual void SetItemCount(size_t count);
protected:
// this method must be implemented in the derived class and should return
// the body (i.e. without <html>) of the HTML for the given item
virtual wxString OnGetItem(size_t n) const = 0;
// this function may be overridden to decorate HTML returned by OnGetItem()
virtual wxString OnGetItemMarkup(size_t n) const;
// this method allows to customize the selection appearance: it may be used
// to specify the colour of the text which normally has the given colour
// colFg when it is inside the selection
//
// by default, the original colour is not used at all and all text has the
// same (default for this system) colour inside selection
virtual wxColour GetSelectedTextColour(const wxColour& colFg) const;
// this is the same as GetSelectedTextColour() but allows to customize the
// background colour -- this is even more rarely used as you can change it
// globally using SetSelectionBackground()
virtual wxColour GetSelectedTextBgColour(const wxColour& colBg) const;
// we implement both of these functions in terms of OnGetItem(), they are
// not supposed to be overridden by our descendants
virtual void OnDrawItem(wxDC& dc, const wxRect& rect, size_t n) const;
virtual wxCoord OnMeasureItem(size_t n) const;
// event handlers
void OnSize(wxSizeEvent& event);
// common part of all ctors
void Init();
// ensure that the given item is cached
void CacheItem(size_t n) const;
private:
// this class caches the pre-parsed HTML to speed up display
wxHtmlListBoxCache *m_cache;
// HTML parser we use
wxHtmlWinParser *m_htmlParser;
// rendering style for the parser which allows us to customize our colours
wxHtmlListBoxStyle *m_htmlRendStyle;
// it calls our GetSelectedTextColour() and GetSelectedTextBgColour()
friend class wxHtmlListBoxStyle;
DECLARE_EVENT_TABLE()
DECLARE_NO_COPY_CLASS(wxHtmlListBox)
};
#endif // _WX_HTMLLBOX_H_