/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project .
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License , v . 2 . 0 . If a copy of the MPL was not distributed with this
* file , You can obtain one at http : //mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice :
*
* Licensed to the Apache Software Foundation ( ASF ) under one or more
* contributor license agreements . See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership . The ASF licenses this file to you under the Apache
* License , Version 2 . 0 ( the " License " ) ; you may not use this file
* except in compliance with the License . You may obtain a copy of
* the License at http : //www.apache.org/licenses/LICENSE-2.0 .
*/
#pragma once
#if !defined (VCL_DLLIMPLEMENTATION) && !defined (TOOLKIT_DLLIMPLEMENTATION) && !defined (VCL_INTERNALS)
#error "don't use this in new code"
#endif
#include <config_options.h>
#include <sal/types.h>
#include <o3tl/typed_flags_set.hxx>
#include <vcl/dllapi.h>
#include <vcl/ctrl.hxx>
class DataChangedEvent;
class NotifyEvent;
class UserDrawEvent;
#define LISTBOX_APPEND (SAL_MAX_INT32)
#define LISTBOX_ENTRY_NOTFOUND (SAL_MAX_INT32)
#define LISTBOX_MAX_ENTRIES (SAL_MAX_INT32 - 1 )
// the following defines can be used for the SetEntryFlags()
// and GetEntryFlags() methods
// !! Do not use these flags for user data as they are reserved !!
// !! to change the internal behaviour of the ListBox implementation !!
// !! for specific entries. !!
enum class ListBoxEntryFlags
{
NONE = 0 x0000,
/** this flag disables a selection of an entry completely. It is not
possible to select such entries either from the user interface
nor from the ListBox methods . Cursor traveling is handled correctly .
This flag can be used to add titles to a ListBox .
*/
DisableSelection = 0 x0001,
/** this flag can be used to make an entry multiline capable
A normal entry is single line and will therefore be clipped
at the right listbox border . Setting this flag enables
word breaks for the entry text .
*/
MultiLine = 0 x0002,
/** this flags lets the item be drawn disabled (e.g. in grey text)
usage only guaranteed with ListBoxEntryFlags : : DisableSelection
*/
DrawDisabled = 0 x0004,
};
namespace o3tl
{
template <> struct typed_flags<ListBoxEntryFlags> : is_typed_flags<ListBoxEntryFlags, 0 x0007> {};
}
class Image;
class ImplListBox;
class ImplListBoxFloatingWindow;
class ImplBtn;
class ImplWin;
class ImplListBoxWindow;
/// A widget used to choose from a list of items and which has no entry.
class VCL_DLLPUBLIC ListBox : public Control
{
private :
VclPtr<ImplListBox> mpImplLB;
VclPtr<ImplListBoxFloatingWindow> mpFloatWin;
VclPtr<ImplWin> mpImplWin;
VclPtr<ImplBtn> mpBtn;
sal_uInt16 mnDDHeight;
sal_Int32 m_nMaxWidthChars;
Link<ListBox&,void > maSelectHdl;
sal_uInt16 mnLineCount;
bool mbDDAutoSize : 1 ;
private :
SAL_DLLPRIVATE void ImplInitListBoxData();
DECL_DLLPRIVATE_LINK( ImplSelectHdl, LinkParamNone*, void );
DECL_DLLPRIVATE_LINK( ImplScrollHdl, ImplListBox*, void );
DECL_DLLPRIVATE_LINK( ImplCancelHdl, LinkParamNone*, void );
DECL_DLLPRIVATE_LINK( ImplDoubleClickHdl, ImplListBoxWindow*, void );
DECL_DLLPRIVATE_LINK( ImplPopupModeEndHdl, FloatingWindow*, void );
DECL_DLLPRIVATE_LINK( ImplSelectionChangedHdl, sal_Int32, void );
DECL_DLLPRIVATE_LINK( ImplFocusHdl, sal_Int32, void );
DECL_DLLPRIVATE_LINK( ImplListItemSelectHdl, LinkParamNone*, void );
DECL_DLLPRIVATE_LINK( ImplClickBtnHdl, void *, void );
protected :
using Window::ImplInit;
SAL_DLLPRIVATE void ImplInit( vcl::Window* pParent, WinBits nStyle );
SAL_DLLPRIVATE static WinBits ImplInitStyle( WinBits nStyle );
bool IsDropDownBox() const { return mpFloatWin != nullptr; }
protected :
SAL_DLLPRIVATE explicit ListBox( WindowType eType );
SAL_DLLPRIVATE virtual void FillLayoutData() const override;
public :
explicit ListBox( vcl::Window* pParent, WinBits nStyle = WB_BORDER );
SAL_DLLPRIVATE virtual ~ListBox() override;
SAL_DLLPRIVATE virtual void dispose() override;
virtual css::uno::Reference<css::accessibility::XAccessible> CreateAccessible() override;
SAL_DLLPRIVATE virtual void ApplySettings(vcl::RenderContext& rRenderContext) override;
SAL_DLLPRIVATE virtual void Draw( OutputDevice* pDev, const Point& rPos, SystemTextColorFlags nFlags ) override;
SAL_DLLPRIVATE virtual void Resize() override;
SAL_DLLPRIVATE virtual bool PreNotify( NotifyEvent& rNEvt ) override;
SAL_DLLPRIVATE virtual void StateChanged( StateChangedType nType ) override;
SAL_DLLPRIVATE virtual void DataChanged( const DataChangedEvent& rDCEvt ) override;
void Select();
SAL_DLLPRIVATE void DoubleClick();
SAL_DLLPRIVATE virtual void GetFocus() override;
SAL_DLLPRIVATE virtual void LoseFocus() override;
SAL_DLLPRIVATE virtual const Wallpaper& GetDisplayBackground() const override;
SAL_DLLPRIVATE virtual void setPosSizePixel( tools::Long nX, tools::Long nY,
tools::Long nWidth, tools::Long nHeight, PosSizeFlags nFlags = PosSizeFlags::All ) override;
tools::Rectangle GetDropDownPosSizePixel() const ;
SAL_DLLPRIVATE void AdaptDropDownLineCountToMaximum();
void SetDropDownLineCount( sal_uInt16 nLines );
sal_uInt16 GetDropDownLineCount() const ;
void EnableAutoSize( bool bAuto );
bool IsAutoSizeEnabled() const { return mbDDAutoSize; }
sal_Int32 InsertEntry( const OUString& rStr, sal_Int32 nPos = LISTBOX_APPEND );
sal_Int32 InsertEntry( const OUString& rStr, const Image& rImage, sal_Int32 nPos = LISTBOX_APPEND );
void RemoveEntry( sal_Int32 nPos );
void Clear();
sal_Int32 GetEntryPos( std::u16string_view rStr ) const ;
Image GetEntryImage( sal_Int32 nPos ) const ;
OUString GetEntry( sal_Int32 nPos ) const ;
sal_Int32 GetEntryCount() const ;
SAL_DLLPRIVATE void SelectEntry( std::u16string_view rStr, bool bSelect = true );
void SelectEntryPos( sal_Int32 nPos, bool bSelect = true );
void SelectEntriesPos( const std::vector<sal_Int32>& rPositions, bool bSelect = true );
sal_Int32 GetSelectedEntryCount() const ;
OUString GetSelectedEntry( sal_Int32 nSelIndex = 0 ) const ;
sal_Int32 GetSelectedEntryPos( sal_Int32 nSelIndex = 0 ) const ;
bool IsEntryPosSelected( sal_Int32 nPos ) const ;
void SetNoSelection();
SAL_DLLPRIVATE void SetEntryData( sal_Int32 nPos, void * pNewData );
SAL_DLLPRIVATE void * GetEntryData( sal_Int32 nPos ) const ;
/** this methods stores a combination of flags from the
ListBoxEntryFlags : : * defines at the given entry .
See description of the possible ListBoxEntryFlags : : * flags
for details .
Do not use these flags for user data as they are reserved
to change the internal behaviour of the ListBox implementation
for specific entries .
*/
SAL_DLLPRIVATE void SetEntryFlags( sal_Int32 nPos, ListBoxEntryFlags nFlags );
void SetTopEntry( sal_Int32 nPos );
sal_Int32 GetTopEntry() const ;
/**
* Removes existing separators , and sets the position of the
* one and only separator .
*/
void SetSeparatorPos( sal_Int32 n );
/**
* Gets the position of the separator which was added first .
* Returns LISTBOX_ENTRY_NOTFOUND if there is no separator .
*/
sal_Int32 GetSeparatorPos() const ;
/**
* Adds a new separator at the given position n .
*/
SAL_DLLPRIVATE void AddSeparator( sal_Int32 n );
SAL_DLLPRIVATE bool IsTravelSelect() const ;
bool IsInDropDown() const ;
void ToggleDropDown();
void EnableMultiSelection( bool bMulti );
bool IsMultiSelectionEnabled() const ;
void SetHighlightColor(const Color& rColor);
void SetHighlightTextColor(const Color& rColor);
void SetReadOnly( bool bReadOnly = true );
bool IsReadOnly() const ;
tools::Rectangle GetBoundingRectangle( sal_Int32 nItem ) const ;
void SetSelectHdl( const Link<ListBox&,void >& rLink ) { maSelectHdl = rLink; }
SAL_DLLPRIVATE Size CalcSubEditSize() const ; //size of area inside lstbox, i.e. no scrollbar/dropdown
Size CalcMinimumSize() const ; //size of lstbox area, i.e. including scrollbar/dropdown
SAL_DLLPRIVATE virtual Size GetOptimalSize() const override;
Size CalcAdjustedSize( const Size& rPrefSize ) const ;
Size CalcBlockSize( sal_uInt16 nColumns, sal_uInt16 nLines ) const ;
void GetMaxVisColumnsAndLines( sal_uInt16& rnCols, sal_uInt16& rnLines ) const ;
sal_uInt16 GetDisplayLineCount() const ;
/** checks whether a certain point lies within the bounds of
a listbox item and returns the item as well as the character position
the point is at .
< p > If the point is inside an item the item pos is put into < code > rPos < / code > and
the item - relative character index is returned . If the point is not inside
an item - 1 is returned and rPos is unchanged . < / p >
@ param rPoint
tells the point for which an item is requested .
@ param rPos
gets the item at the specified point < code > rPoint < / code >
@ returns
the item - relative character index at point < code > rPos < / code > or - 1
if no item is at that point .
*/
using Control::GetIndexForPoint;
tools::Long GetIndexForPoint( const Point& rPoint, sal_Int32 & rPos ) const ;
SAL_DLLPRIVATE void setMaxWidthChars(sal_Int32 nWidth);
SAL_DLLPRIVATE virtual bool set_property(const OUString &rKey, const OUString &rValue) override;
SAL_DLLPRIVATE virtual FactoryFunction GetUITestFactory() const override;
SAL_DLLPRIVATE virtual void DumpAsPropertyTree(tools::JsonWriter&) override;
};
class UNLESS_MERGELIBS(VCL_DLLPUBLIC) MultiListBox final : public ListBox
{
public :
explicit MultiListBox( vcl::Window* pParent, WinBits nStyle );
};
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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