438 lines
15 KiB
C++
438 lines
15 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/bookctrl.h
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// Purpose: wxBookCtrlBase: common base class for wxList/Tree/Notebook
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 19.08.03
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// Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_BOOKCTRL_H_
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#define _WX_BOOKCTRL_H_
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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_BOOKCTRL
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#include "wx/control.h"
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#include "wx/dynarray.h"
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#include "wx/withimages.h"
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WX_DEFINE_EXPORTED_ARRAY_PTR(wxWindow *, wxArrayPages);
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class WXDLLIMPEXP_FWD_CORE wxImageList;
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class WXDLLIMPEXP_FWD_CORE wxBookCtrlEvent;
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// wxBookCtrl hit results
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enum
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{
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wxBK_HITTEST_NOWHERE = 1, // not on tab
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wxBK_HITTEST_ONICON = 2, // on icon
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wxBK_HITTEST_ONLABEL = 4, // on label
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wxBK_HITTEST_ONITEM = 16, // on tab control but not on its icon or label
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wxBK_HITTEST_ONPAGE = 8 // not on tab control, but over the selected page
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};
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// wxBookCtrl flags (common for wxNotebook, wxListbook, wxChoicebook, wxTreebook)
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#define wxBK_DEFAULT 0x0000
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#define wxBK_TOP 0x0010
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#define wxBK_BOTTOM 0x0020
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#define wxBK_LEFT 0x0040
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#define wxBK_RIGHT 0x0080
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#define wxBK_ALIGN_MASK (wxBK_TOP | wxBK_BOTTOM | wxBK_LEFT | wxBK_RIGHT)
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// ----------------------------------------------------------------------------
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// wxBookCtrlBase
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxBookCtrlBase : public wxControl,
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public wxWithImages
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{
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public:
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// construction
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// ------------
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wxBookCtrlBase()
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{
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Init();
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}
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wxBookCtrlBase(wxWindow *parent,
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wxWindowID winid,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = 0,
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const wxString& name = wxEmptyString)
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{
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Init();
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(void)Create(parent, winid, pos, size, style, name);
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}
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// quasi ctor
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bool Create(wxWindow *parent,
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wxWindowID winid,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = 0,
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const wxString& name = wxEmptyString);
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// accessors
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// ---------
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// get number of pages in the dialog
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virtual size_t GetPageCount() const { return m_pages.size(); }
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// get the panel which represents the given page
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virtual wxWindow *GetPage(size_t n) const { return m_pages[n]; }
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// get the current page or NULL if none
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wxWindow *GetCurrentPage() const
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{
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const int n = GetSelection();
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return n == wxNOT_FOUND ? NULL : GetPage(n);
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}
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// get the currently selected page or wxNOT_FOUND if none
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virtual int GetSelection() const { return m_selection; }
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// set/get the title of a page
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virtual bool SetPageText(size_t n, const wxString& strText) = 0;
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virtual wxString GetPageText(size_t n) const = 0;
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// image list stuff: each page may have an image associated with it (all
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// images belong to the same image list)
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// ---------------------------------------------------------------------
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// sets/returns item's image index in the current image list
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virtual int GetPageImage(size_t n) const = 0;
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virtual bool SetPageImage(size_t n, int imageId) = 0;
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// geometry
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// --------
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// resize the notebook so that all pages will have the specified size
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virtual void SetPageSize(const wxSize& size);
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// return the size of the area needed to accommodate the controller
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wxSize GetControllerSize() const;
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// calculate the size of the control from the size of its page
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//
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// by default this simply returns size enough to fit both the page and the
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// controller
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virtual wxSize CalcSizeFromPage(const wxSize& sizePage) const;
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// get/set size of area between book control area and page area
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unsigned int GetInternalBorder() const { return m_internalBorder; }
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void SetInternalBorder(unsigned int border) { m_internalBorder = border; }
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// Sets/gets the margin around the controller
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void SetControlMargin(int margin) { m_controlMargin = margin; }
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int GetControlMargin() const { return m_controlMargin; }
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// returns true if we have wxBK_TOP or wxBK_BOTTOM style
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bool IsVertical() const { return HasFlag(wxBK_BOTTOM | wxBK_TOP); }
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// set/get option to shrink to fit current page
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void SetFitToCurrentPage(bool fit) { m_fitToCurrentPage = fit; }
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bool GetFitToCurrentPage() const { return m_fitToCurrentPage; }
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// returns the sizer containing the control, if any
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wxSizer* GetControlSizer() const { return m_controlSizer; }
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// operations
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// ----------
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// remove one page from the control and delete it
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virtual bool DeletePage(size_t n);
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// remove one page from the notebook, without deleting it
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virtual bool RemovePage(size_t n)
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{
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DoInvalidateBestSize();
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return DoRemovePage(n) != NULL;
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}
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// remove all pages and delete them
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virtual bool DeleteAllPages()
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{
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m_selection = wxNOT_FOUND;
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DoInvalidateBestSize();
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WX_CLEAR_ARRAY(m_pages);
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return true;
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}
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// adds a new page to the control
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virtual bool AddPage(wxWindow *page,
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const wxString& text,
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bool bSelect = false,
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int imageId = NO_IMAGE)
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{
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DoInvalidateBestSize();
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return InsertPage(GetPageCount(), page, text, bSelect, imageId);
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}
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// the same as AddPage(), but adds the page at the specified position
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virtual bool InsertPage(size_t n,
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wxWindow *page,
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const wxString& text,
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bool bSelect = false,
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int imageId = NO_IMAGE) = 0;
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// set the currently selected page, return the index of the previously
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// selected one (or wxNOT_FOUND on error)
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//
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// NB: this function will generate PAGE_CHANGING/ED events
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virtual int SetSelection(size_t n) = 0;
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// acts as SetSelection but does not generate events
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virtual int ChangeSelection(size_t n) = 0;
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// cycle thru the pages
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void AdvanceSelection(bool forward = true)
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{
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int nPage = GetNextPage(forward);
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if ( nPage != wxNOT_FOUND )
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{
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// cast is safe because of the check above
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SetSelection((size_t)nPage);
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}
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}
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// return the index of the given page or wxNOT_FOUND
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int FindPage(const wxWindow* page) const;
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// hit test: returns which page is hit and, optionally, where (icon, label)
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virtual int HitTest(const wxPoint& WXUNUSED(pt),
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long * WXUNUSED(flags) = NULL) const
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{
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return wxNOT_FOUND;
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}
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// we do have multiple pages
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virtual bool HasMultiplePages() const wxOVERRIDE { return true; }
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// we don't want focus for ourselves
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virtual bool AcceptsFocus() const wxOVERRIDE { return false; }
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// returns true if the platform should explicitly apply a theme border
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virtual bool CanApplyThemeBorder() const wxOVERRIDE { return false; }
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protected:
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// flags for DoSetSelection()
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enum
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{
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SetSelection_SendEvent = 1
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};
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// choose the default border for this window
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virtual wxBorder GetDefaultBorder() const wxOVERRIDE { return wxBORDER_NONE; }
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// After the insertion of the page in the method InsertPage, calling this
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// method sets the selection to the given page or the first one if there is
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// still no selection. The "selection changed" event is sent only if
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// bSelect is true, so when it is false, no event is sent even if the
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// selection changed from wxNOT_FOUND to 0 when inserting the first page.
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//
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// Returns true if the selection was set to the specified page (explicitly
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// because of bSelect == true or implicitly because it's the first page) or
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// false otherwise.
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bool DoSetSelectionAfterInsertion(size_t n, bool bSelect);
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// Update the selection after removing the page at the given index,
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// typically called from the derived class overridden DoRemovePage().
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void DoSetSelectionAfterRemoval(size_t n);
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// set the selection to the given page, sending the events (which can
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// possibly prevent the page change from taking place) if SendEvent flag is
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// included
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virtual int DoSetSelection(size_t nPage, int flags = 0);
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// if the derived class uses DoSetSelection() for implementing
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// [Set|Change]Selection, it must override UpdateSelectedPage(),
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// CreatePageChangingEvent() and MakeChangedEvent(), but as it might not
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// use it, these functions are not pure virtual
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// called to notify the control about a new current page
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virtual void UpdateSelectedPage(size_t WXUNUSED(newsel))
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{ wxFAIL_MSG(wxT("Override this function!")); }
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// create a new "page changing" event
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virtual wxBookCtrlEvent* CreatePageChangingEvent() const
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{ wxFAIL_MSG(wxT("Override this function!")); return NULL; }
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// modify the event created by CreatePageChangingEvent() to "page changed"
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// event, usually by just calling SetEventType() on it
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virtual void MakeChangedEvent(wxBookCtrlEvent& WXUNUSED(event))
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{ wxFAIL_MSG(wxT("Override this function!")); }
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// The derived class also may override the following method, also called
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// from DoSetSelection(), to show/hide pages differently.
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virtual void DoShowPage(wxWindow* page, bool show) { page->Show(show); }
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// Should we accept NULL page pointers in Add/InsertPage()?
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//
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// Default is no but derived classes may override it if they can treat NULL
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// pages in some sensible way (e.g. wxTreebook overrides this to allow
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// having nodes without any associated page)
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virtual bool AllowNullPage() const { return false; }
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// Remove the page and return a pointer to it.
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//
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// It also needs to update the current selection if necessary, i.e. if the
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// page being removed comes before the selected one and the helper method
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// DoSetSelectionAfterRemoval() can be used for this.
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virtual wxWindow *DoRemovePage(size_t page) = 0;
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// our best size is the size which fits all our pages
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virtual wxSize DoGetBestSize() const wxOVERRIDE;
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// helper: get the next page wrapping if we reached the end
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int GetNextPage(bool forward) const;
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// Lay out controls
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virtual void DoSize();
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// This method also invalidates the size of the controller and should be
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// called instead of just InvalidateBestSize() whenever pages are added or
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// removed as this also affects the controller
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void DoInvalidateBestSize();
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#if wxUSE_HELP
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// Show the help for the corresponding page
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void OnHelp(wxHelpEvent& event);
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#endif // wxUSE_HELP
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// the array of all pages of this control
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wxArrayPages m_pages;
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// get the page area
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virtual wxRect GetPageRect() const;
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// event handlers
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void OnSize(wxSizeEvent& event);
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// controller buddy if available, NULL otherwise (usually for native book controls like wxNotebook)
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wxControl *m_bookctrl;
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// Whether to shrink to fit current page
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bool m_fitToCurrentPage;
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// the sizer containing the choice control
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wxSizer *m_controlSizer;
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// the margin around the choice control
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int m_controlMargin;
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// The currently selected page (in range 0..m_pages.size()-1 inclusive) or
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// wxNOT_FOUND if none (this can normally only be the case for an empty
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// control without any pages).
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int m_selection;
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private:
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// common part of all ctors
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void Init();
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// internal border
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unsigned int m_internalBorder;
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wxDECLARE_ABSTRACT_CLASS(wxBookCtrlBase);
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wxDECLARE_NO_COPY_CLASS(wxBookCtrlBase);
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wxDECLARE_EVENT_TABLE();
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};
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// ----------------------------------------------------------------------------
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// wxBookCtrlEvent: page changing events generated by book classes
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxBookCtrlEvent : public wxNotifyEvent
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{
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public:
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wxBookCtrlEvent(wxEventType commandType = wxEVT_NULL, int winid = 0,
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int nSel = wxNOT_FOUND, int nOldSel = wxNOT_FOUND)
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: wxNotifyEvent(commandType, winid)
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{
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m_nSel = nSel;
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m_nOldSel = nOldSel;
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}
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wxBookCtrlEvent(const wxBookCtrlEvent& event)
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: wxNotifyEvent(event)
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{
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m_nSel = event.m_nSel;
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m_nOldSel = event.m_nOldSel;
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}
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virtual wxEvent *Clone() const wxOVERRIDE { return new wxBookCtrlEvent(*this); }
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// accessors
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// the currently selected page (wxNOT_FOUND if none)
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int GetSelection() const { return m_nSel; }
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void SetSelection(int nSel) { m_nSel = nSel; }
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// the page that was selected before the change (wxNOT_FOUND if none)
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int GetOldSelection() const { return m_nOldSel; }
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void SetOldSelection(int nOldSel) { m_nOldSel = nOldSel; }
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private:
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int m_nSel, // currently selected page
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m_nOldSel; // previously selected page
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wxDECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxBookCtrlEvent);
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};
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typedef void (wxEvtHandler::*wxBookCtrlEventFunction)(wxBookCtrlEvent&);
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#define wxBookCtrlEventHandler(func) \
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wxEVENT_HANDLER_CAST(wxBookCtrlEventFunction, func)
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// obsolete name, defined for compatibility only
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#define wxBookCtrlBaseEvent wxBookCtrlEvent
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// make a default book control for given platform
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#if wxUSE_NOTEBOOK
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// dedicated to majority of desktops
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#include "wx/notebook.h"
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#define wxBookCtrl wxNotebook
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#define wxEVT_BOOKCTRL_PAGE_CHANGED wxEVT_NOTEBOOK_PAGE_CHANGED
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#define wxEVT_BOOKCTRL_PAGE_CHANGING wxEVT_NOTEBOOK_PAGE_CHANGING
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#define EVT_BOOKCTRL_PAGE_CHANGED(id, fn) EVT_NOTEBOOK_PAGE_CHANGED(id, fn)
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#define EVT_BOOKCTRL_PAGE_CHANGING(id, fn) EVT_NOTEBOOK_PAGE_CHANGING(id, fn)
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#else
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// dedicated to Smartphones
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#include "wx/choicebk.h"
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#define wxBookCtrl wxChoicebook
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#define wxEVT_BOOKCTRL_PAGE_CHANGED wxEVT_CHOICEBOOK_PAGE_CHANGED
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#define wxEVT_BOOKCTRL_PAGE_CHANGING wxEVT_CHOICEBOOK_PAGE_CHANGING
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#define EVT_BOOKCTRL_PAGE_CHANGED(id, fn) EVT_CHOICEBOOK_PAGE_CHANGED(id, fn)
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#define EVT_BOOKCTRL_PAGE_CHANGING(id, fn) EVT_CHOICEBOOK_PAGE_CHANGING(id, fn)
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#endif
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// old wxEVT_COMMAND_* constants
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#define wxEVT_COMMAND_BOOKCTRL_PAGE_CHANGED wxEVT_BOOKCTRL_PAGE_CHANGED
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#define wxEVT_COMMAND_BOOKCTRL_PAGE_CHANGING wxEVT_BOOKCTRL_PAGE_CHANGING
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#endif // wxUSE_BOOKCTRL
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#endif // _WX_BOOKCTRL_H_
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