RFC: add IsValueChangedFromSaved to VCL button and listbox

Add a method
   bool IsValueChangedFromSaved()
to the various Button and Listbox classes.
Use it to simplify code like
   if ( maBoldAppFont.GetSavedValue() !=
        TriState(maBoldAppFont.IsChecked()) )
to
   if ( maBoldAppFont.IsValueChangedFromSaved() )

Change-Id: I26b291d0980237497063ee301d63a49c7d2bc227
Reviewed-on: https://gerrit.libreoffice.org/9250Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

forms/source/solar/control/navtoolbar.cxx

@@ -681,7 +681,7 @@ namespace frm
 
     void RecordPositionInput::FirePosition( bool _bForce )
     {
-        if ( _bForce || (GetText() != GetSavedValue()) )
+        if ( _bForce || IsValueChangedFromSaved() )
         {
             sal_Int64 nRecord = GetValue();
             if ( nRecord < GetMin() || nRecord > GetMax() )

include/vcl/button.hxx

@@ -48,9 +48,9 @@ private:
     SAL_DLLPRIVATE                  Button (const Button &);
     SAL_DLLPRIVATE                  Button & operator= (const Button &);
 public:
-    SAL_DLLPRIVATE sal_uInt16           ImplGetButtonState() const;
-    SAL_DLLPRIVATE sal_uInt16&          ImplGetButtonState();
-    SAL_DLLPRIVATE sal_uInt16           ImplGetTextStyle( OUString& rText, WinBits nWinStyle, sal_uLong nDrawFlags );
+    SAL_DLLPRIVATE sal_uInt16       ImplGetButtonState() const;
+    SAL_DLLPRIVATE sal_uInt16&      ImplGetButtonState();
+    SAL_DLLPRIVATE sal_uInt16       ImplGetTextStyle( OUString& rText, WinBits nWinStyle, sal_uLong nDrawFlags );
     SAL_DLLPRIVATE void             ImplDrawAlignedImage( OutputDevice* pDev, Point& rPos, Size& rSize,
                                               bool bLayout, sal_uLong nImageSep, sal_uLong nDrawFlags,
                                               sal_uInt16 nTextStyle, Rectangle *pSymbolRect=NULL, bool bAddImageSep = false );
@@ -106,7 +106,7 @@ protected:
     SymbolType      meSymbol;
     TriState        meState;
     TriState        meSaveValue;
-    sal_uInt16          mnDDStyle;
+    sal_uInt16      mnDDStyle;
     bool            mbPressed;
     bool            mbInUserDraw;
     Link            maToggleHdl;
@@ -185,6 +185,7 @@ public:
 
     void            SaveValue() { meSaveValue = GetState(); }
     TriState        GetSavedValue() const { return meSaveValue; }
+    bool            IsValueChangedFromSaved() const { return meSaveValue != GetState(); }
 
     Size            CalcMinimumSize( long nMaxWidth = 0 ) const;
     virtual Size    GetOptimalSize() const SAL_OVERRIDE;
@@ -367,7 +368,7 @@ public:
     void            EnableRadioCheck( bool bRadioCheck = true ) { mbRadioCheck = bRadioCheck; }
     bool            IsRadioCheckEnabled() const { return mbRadioCheck; }
 
-    bool        SetModeRadioImage( const Image& rImage );
+    bool            SetModeRadioImage( const Image& rImage );
     const Image&    GetModeRadioImage( ) const;
 
     void            SetState( bool bCheck );
@@ -376,6 +377,7 @@ public:
 
     void            SaveValue() { mbSaveValue = IsChecked(); }
     bool            GetSavedValue() const { return mbSaveValue; }
+    bool            IsValueChangedFromSaved() const { return mbSaveValue != IsChecked(); }
 
     static Image    GetRadioImage( const AllSettings& rSettings, sal_uInt16 nFlags );
 
@@ -488,6 +490,7 @@ public:
 
     void            SaveValue() { meSaveValue = GetState(); }
     TriState        GetSavedValue() const { return meSaveValue; }
+    bool            IsValueChangedFromSaved() const { return meSaveValue != GetState(); }
 
     static Image    GetCheckImage( const AllSettings& rSettings, sal_uInt16 nFlags );
 

include/vcl/edit.hxx

@@ -218,6 +218,7 @@ public:
 
     void                SaveValue() { maSaveValue = GetText(); }
     const OUString&     GetSavedValue() const { return maSaveValue; }
+    bool                IsValueChangedFromSaved() const { return maSaveValue != GetText(); }
 
     virtual void        SetModifyHdl( const Link& rLink ) { maModifyHdl = rLink; }
     virtual const Link& GetModifyHdl() const { return maModifyHdl; }

include/vcl/lstbox.hxx

@@ -164,6 +164,7 @@ public:
 
     void                SaveValue() { mnSaveValue = GetSelectEntryPos(); }
     sal_Int32           GetSavedValue() const { return mnSaveValue; }
+    bool                IsValueChangedFromSaved() const { return mnSaveValue != GetSelectEntryPos(); }
 
     void                SetSeparatorPos( sal_Int32  n = LISTBOX_ENTRY_NOTFOUND );
     sal_Int32           GetSeparatorPos() const;
@@ -244,10 +245,12 @@ class VCL_DLLPUBLIC MultiListBox : public ListBox
 public:
     using ListBox::SaveValue;
     using ListBox::GetSavedValue;
+    using ListBox::IsValueChangedFromSaved;
 private:
     // Bei MultiListBox nicht erlaubt...
     void            SaveValue();
     sal_Int32       GetSavedValue();
+    bool            IsValueChangedFromSaved() const;
 
 public:
     explicit        MultiListBox( Window* pParent, WinBits nStyle = 0 );

include/vcl/vclmedit.hxx

@@ -108,6 +108,7 @@ public:
 
     void            SaveValue()                         { aSaveValue = GetText(); }
     const OUString&    GetSavedValue() const            { return aSaveValue; }
+    bool               IsValueChangedFromSaved() const  { return aSaveValue != GetText(); }
 
     void            SetModifyHdl( const Link& rLink ) SAL_OVERRIDE   { aModifyHdlLink = rLink; }
     const Link&     GetModifyHdl() const SAL_OVERRIDE                { return aModifyHdlLink; }

reportdesign/source/ui/dlg/GroupsSorting.cxx

@@ -1071,23 +1071,23 @@ void OGroupsSortingDialog::SaveData( sal_Int32 _nRow)
         return;
 
     uno::Reference< report::XGroup> xGroup = getGroup(nGroupPos);
-    if ( m_aHeaderLst.GetSavedValue() != m_aHeaderLst.GetSelectEntryPos() )
+    if ( m_aHeaderLst.IsValueChangedFromSaved() )
         xGroup->setHeaderOn( m_aHeaderLst.GetSelectEntryPos() == 0 );
-    if ( m_aFooterLst.GetSavedValue() != m_aFooterLst.GetSelectEntryPos() )
+    if ( m_aFooterLst.IsValueChangedFromSaved() )
         xGroup->setFooterOn( m_aFooterLst.GetSelectEntryPos() == 0 );
-    if ( m_aKeepTogetherLst.GetSavedValue() != m_aKeepTogetherLst.GetSelectEntryPos() )
+    if ( m_aKeepTogetherLst.IsValueChangedFromSaved() )
         xGroup->setKeepTogether( m_aKeepTogetherLst.GetSelectEntryPos() );
-    if ( m_aGroupOnLst.GetSavedValue() != m_aGroupOnLst.GetSelectEntryPos() )
+    if ( m_aGroupOnLst.IsValueChangedFromSaved() )
     {
         sal_Int16 nGroupOn = static_cast<sal_Int16>(reinterpret_cast<sal_IntPtr>(m_aGroupOnLst.GetEntryData(m_aGroupOnLst.GetSelectEntryPos())));
         xGroup->setGroupOn( nGroupOn );
     }
-    if ( m_aGroupIntervalEd.GetSavedValue().toInt32() != m_aGroupIntervalEd.GetValue() )
+    if ( m_aGroupIntervalEd.IsValueChangedFromSaved() )
     {
         xGroup->setGroupInterval( static_cast<sal_Int32>(m_aGroupIntervalEd.GetValue()) );
         m_aGroupIntervalEd.SaveValue();
     }
-    if ( m_aOrderLst.GetSavedValue() != m_aOrderLst.GetSelectEntryPos() )
+    if ( m_aOrderLst.IsValueChangedFromSaved() )
         xGroup->setSortAscending( m_aOrderLst.GetSelectEntryPos() == 0 );
 
     ListBox* pControls[] = { &m_aHeaderLst,&m_aFooterLst,&m_aGroupOnLst,&m_aKeepTogetherLst,&m_aOrderLst};
@@ -1196,13 +1196,13 @@ IMPL_LINK( OGroupsSortingDialog, OnFormatAction, ToolBox*, /*NOTINTERESTEDIN*/ )
 
 IMPL_LINK( OGroupsSortingDialog, LBChangeHdl, ListBox*, pListBox )
 {
-    if ( pListBox->GetSavedValue() != pListBox->GetSelectEntryPos() )
+    if ( pListBox->IsValueChangedFromSaved() )
     {
         sal_Int32 nRow = m_pFieldExpression->GetCurRow();
         sal_Int32 nGroupPos = m_pFieldExpression->getGroupPosition(nRow);
         if ( pListBox != &m_aHeaderLst && pListBox != &m_aFooterLst)
         {
-            if ( pListBox->GetSavedValue() != pListBox->GetSelectEntryPos() )
+            if ( pListBox->IsValueChangedFromSaved() )
                 SaveData(nRow);
             if ( pListBox == &m_aGroupOnLst )
                 m_aGroupIntervalEd.Enable( pListBox->GetSelectEntryPos() != 0 );

vcl/source/app/dbggui.cxx

@@ -334,7 +334,7 @@ IMPL_LINK( DbgDialog, ClickHdl, Button*, pButton )
         #define IMMEDIATE_FLAGS (DBG_TEST_RESOURCE | DBG_TEST_DIALOG | DBG_TEST_BOLDAPPFONT)
         pData->nTestFlags &= ~IMMEDIATE_FLAGS;
         pData->nTestFlags |= aData.nTestFlags & IMMEDIATE_FLAGS;
-        if ( maBoldAppFont.GetSavedValue() != TriState(maBoldAppFont.IsChecked()) )
+        if ( maBoldAppFont.IsValueChangedFromSaved() )
         {
             AllSettings aSettings = Application::GetSettings();
             StyleSettings aStyleSettings = aSettings.GetStyleSettings();