84dc4707d7
The scrollbar wasn't shown when the control became only slightly more narrow than its contents, resulting in truncation of the rightmost part of the strings shown in it. Fix this by accounting for the check box explicitly in wxListBox SetHorizontalExtent() method using the new MSWGetFullItemSize() helper which is also used to avoid code duplication between wxCheckListBox MSWOnMeasure() and DoGetBestClientSize() methods. Closes #18377.
214 lines
7.3 KiB
C++
214 lines
7.3 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/msw/listbox.h
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// Purpose: wxListBox class
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// Author: Julian Smart
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// Modified by:
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// Created: 01/02/97
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_LISTBOX_H_
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#define _WX_LISTBOX_H_
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#if wxUSE_LISTBOX
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// ----------------------------------------------------------------------------
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// simple types
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// ----------------------------------------------------------------------------
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#if wxUSE_OWNER_DRAWN
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class WXDLLIMPEXP_FWD_CORE wxOwnerDrawn;
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// define the array of list box items
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#include "wx/dynarray.h"
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WX_DEFINE_EXPORTED_ARRAY_PTR(wxOwnerDrawn *, wxListBoxItemsArray);
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#endif // wxUSE_OWNER_DRAWN
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// forward declaration for GetSelections()
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class WXDLLIMPEXP_FWD_BASE wxArrayInt;
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// ----------------------------------------------------------------------------
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// List box control
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxListBox : public wxListBoxBase
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{
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public:
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// ctors and such
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wxListBox() { Init(); }
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wxListBox(wxWindow *parent, wxWindowID id,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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int n = 0, const wxString choices[] = NULL,
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long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxListBoxNameStr)
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{
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Init();
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Create(parent, id, pos, size, n, choices, style, validator, name);
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}
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wxListBox(wxWindow *parent, wxWindowID id,
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const wxPoint& pos,
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const wxSize& size,
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const wxArrayString& choices,
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long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxListBoxNameStr)
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{
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Init();
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Create(parent, id, pos, size, choices, style, validator, name);
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}
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bool Create(wxWindow *parent, wxWindowID id,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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int n = 0, const wxString choices[] = NULL,
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long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxListBoxNameStr);
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bool Create(wxWindow *parent, wxWindowID id,
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const wxPoint& pos,
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const wxSize& size,
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const wxArrayString& choices,
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long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxListBoxNameStr);
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virtual ~wxListBox();
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virtual unsigned int GetCount() const wxOVERRIDE;
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virtual wxString GetString(unsigned int n) const wxOVERRIDE;
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virtual void SetString(unsigned int n, const wxString& s) wxOVERRIDE;
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virtual int FindString(const wxString& s, bool bCase = false) const wxOVERRIDE;
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virtual bool IsSelected(int n) const wxOVERRIDE;
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virtual int GetSelection() const wxOVERRIDE;
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virtual int GetSelections(wxArrayInt& aSelections) const wxOVERRIDE;
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// return the index of the item at this position or wxNOT_FOUND
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int HitTest(const wxPoint& pt) const { return DoHitTestList(pt); }
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int HitTest(wxCoord x, wxCoord y) const { return DoHitTestList(wxPoint(x, y)); }
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virtual void EnsureVisible(int n) wxOVERRIDE;
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virtual int GetTopItem() const wxOVERRIDE;
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virtual int GetCountPerPage() const wxOVERRIDE;
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// ownerdrawn wxListBox and wxCheckListBox support
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#if wxUSE_OWNER_DRAWN
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// override base class virtuals
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virtual bool SetFont(const wxFont &font) wxOVERRIDE;
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bool MSWOnMeasure(WXMEASUREITEMSTRUCT *item) wxOVERRIDE;
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bool MSWOnDraw(WXDRAWITEMSTRUCT *item) wxOVERRIDE;
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// plug-in for derived classes
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virtual wxOwnerDrawn *CreateLboxItem(size_t n);
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// allows to get the item and use SetXXX functions to set it's appearance
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wxOwnerDrawn *GetItem(size_t n) const { return m_aItems[n]; }
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// get the index of the given item
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int GetItemIndex(wxOwnerDrawn *item) const { return m_aItems.Index(item); }
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// get rect of the given item index
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bool GetItemRect(size_t n, wxRect& rect) const;
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// redraw the given item
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bool RefreshItem(size_t n);
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#endif // wxUSE_OWNER_DRAWN
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// Windows-specific code to update the horizontal extent of the listbox, if
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// necessary. If s is non-empty, the horizontal extent is increased to the
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// length of this string if it's currently too short, otherwise the maximum
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// extent of all strings is used. In any case calls InvalidateBestSize()
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virtual void SetHorizontalExtent(const wxString& s = wxEmptyString);
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// Windows callbacks
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bool MSWCommand(WXUINT param, WXWORD id) wxOVERRIDE;
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WXDWORD MSWGetStyle(long style, WXDWORD *exstyle) const wxOVERRIDE;
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// under XP when using "transition effect for menus and tooltips" if we
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// return true for WM_PRINTCLIENT here then it causes noticeable slowdown
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virtual bool MSWShouldPropagatePrintChild() wxOVERRIDE
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{
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return false;
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}
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virtual wxVisualAttributes GetDefaultAttributes() const wxOVERRIDE
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{
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return GetClassDefaultAttributes(GetWindowVariant());
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}
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static wxVisualAttributes
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GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL)
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{
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return GetCompositeControlsDefaultAttributes(variant);
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}
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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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virtual void OnInternalIdle() wxOVERRIDE;
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protected:
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virtual wxSize DoGetBestClientSize() const wxOVERRIDE;
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virtual void DoClear() wxOVERRIDE;
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virtual void DoDeleteOneItem(unsigned int n) wxOVERRIDE;
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virtual void DoSetSelection(int n, bool select) wxOVERRIDE;
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virtual int DoInsertItems(const wxArrayStringsAdapter& items,
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unsigned int pos,
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void **clientData, wxClientDataType type) wxOVERRIDE;
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virtual void DoSetFirstItem(int n) wxOVERRIDE;
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virtual void DoSetItemClientData(unsigned int n, void* clientData) wxOVERRIDE;
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virtual void* DoGetItemClientData(unsigned int n) const wxOVERRIDE;
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// this can't be called DoHitTest() because wxWindow already has this method
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virtual int DoHitTestList(const wxPoint& point) const;
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// This is a hook for wxCheckListBox, which uses it to add the checkbox
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// width to the item width and to make it at least as tall as the checkbox.
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virtual wxSize MSWGetFullItemSize(int w, int h) const
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{
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return wxSize(w, h);
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}
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// free memory (common part of Clear() and dtor)
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void Free();
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unsigned int m_noItems;
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#if wxUSE_OWNER_DRAWN
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// control items
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wxListBoxItemsArray m_aItems;
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#endif
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private:
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// common part of all ctors
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void Init();
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// call this when items are added to or deleted from the listbox or an
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// items text changes
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void MSWOnItemsChanged();
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// flag indicating whether the max horizontal extent should be updated,
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// i.e. if we need to call SetHorizontalExtent() from OnInternalIdle()
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bool m_updateHorizontalExtent;
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wxDECLARE_DYNAMIC_CLASS_NO_COPY(wxListBox);
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};
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#endif // wxUSE_LISTBOX
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#endif
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// _WX_LISTBOX_H_
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