controlbar.cpp

很牛的GUI源码wxWidgets-2.8.0.zip 可在多种平台下运行.

    AddPlugin( CLASSINFO( cbBarDragPlugin         ) );
    AddPlugin( CLASSINFO( cbPaneDrawPlugin ) );
}

void wxFrameLayout::AddPlugin( wxClassInfo* pPlInfo, int paneMask )
{
    if ( FindPlugin ( pPlInfo ) ) return; // same type of plugin cannot be added twice

    cbPluginBase* pObj = (cbPluginBase*)pPlInfo->CreateObject();

    wxASSERT(pObj); // DBG:: plugin's class should be dynamic

    pObj->mPaneMask = paneMask;
    pObj->mpLayout  = this;

    PushPlugin( pObj );
}

void wxFrameLayout::AddPluginBefore( wxClassInfo* pNextPlInfo, wxClassInfo* pPlInfo,
                                       int paneMask )
{
    wxASSERT( pNextPlInfo != pPlInfo ); // DBG:: no sense

    cbPluginBase* pNextPl = FindPlugin( pNextPlInfo );

    if ( !pNextPl )
    {
        AddPlugin( pPlInfo, paneMask );

        return;
    }

    // remove existing one if present

    cbPluginBase* pExistingPl = FindPlugin( pPlInfo );

    if ( pExistingPl ) RemovePlugin( pPlInfo );

    // create an instance

    cbPluginBase* pNewPl = (cbPluginBase*)pPlInfo->CreateObject();

    wxASSERT(pNewPl); // DBG:: plugin's class should be dynamic

    // insert it to the chain

    if ( pNextPl->GetPreviousHandler() )
        pNextPl->GetPreviousHandler()->SetNextHandler( pNewPl );
    else
        mpTopPlugin = pNewPl;

    pNewPl->SetNextHandler( pNextPl );

    pNewPl->SetPreviousHandler( pNextPl->GetPreviousHandler() );

    pNextPl->SetPreviousHandler( pNewPl );

    // set it up

    pNewPl->mPaneMask = paneMask;
    pNewPl->mpLayout  = this;

    pNewPl->OnInitPlugin();
}

void wxFrameLayout::RemovePlugin( wxClassInfo* pPlInfo )
{
    cbPluginBase* pPlugin = FindPlugin( pPlInfo );

    if ( !pPlugin ) return; // it's OK to remove not-existing plugin ;-)

    if ( pPlugin->GetPreviousHandler() == NULL )

        mpTopPlugin = (cbPluginBase*)pPlugin->GetNextHandler();

    delete pPlugin;
}

cbPluginBase* wxFrameLayout::FindPlugin( wxClassInfo* pPlInfo )
{
    cbPluginBase *pCur = mpTopPlugin;

    while( pCur )
    {
        // NOTE:: it might appear useful matching plugin
        //        classes "polymorphically":

        if ( pCur->GetClassInfo()->IsKindOf( pPlInfo ) )

            return pCur;

        pCur = (cbPluginBase*)pCur->GetNextHandler();
    }

    return NULL;
}

/***** Implementation for class cbUpdateMgrData *****/

IMPLEMENT_DYNAMIC_CLASS( cbUpdateMgrData, wxObject )

cbUpdateMgrData::cbUpdateMgrData()

    : mPrevBounds( -1,-1,0,0 ),
      mIsDirty( true ),           // inidicate initial change
      mpCustomData(0)
{}

void cbUpdateMgrData::StoreItemState( const wxRect& boundsInParent )
{
    mPrevBounds = boundsInParent;
}

void cbUpdateMgrData::SetDirty( bool isDirty )
{
    mIsDirty = isDirty;
}

void cbUpdateMgrData::SetCustomData( wxObject* pCustomData )
{
    mpCustomData = pCustomData;
}

/***** Implementation for class cbDockPane *****/

void wxBarIterator::Reset()
{
    mpRow = ( mpRows->Count() ) ? (*mpRows)[0] : NULL;
    mpBar = NULL;
}

wxBarIterator::wxBarIterator( RowArrayT& rows )

    : mpRows( &rows ),
      mpRow ( NULL  ),
      mpBar ( NULL  )
{
    Reset();
}

bool wxBarIterator::Next()
{
    if ( mpRow )
    {
        if ( mpBar )
            mpBar = mpBar->mpNext;
        else
        {
            if ( mpRow->mBars.GetCount() == 0 )
            {
                return false;
            }

            mpBar = mpRow->mBars[0];
        }

        if ( !mpBar )
        {
            // skip to the next row

            mpRow = mpRow->mpNext;

            if ( mpRow )
                mpBar = mpRow->mBars[0];
            else
                return false;
        }

        return true;
    }
    else
        return false;
}

cbBarInfo& wxBarIterator::BarInfo()
{
    return *mpBar;
}

cbRowInfo& wxBarIterator::RowInfo()
{
    return *mpRow;
}

/***** Implementation for class cbBarDimHandlerBase *****/

IMPLEMENT_ABSTRACT_CLASS( cbBarDimHandlerBase, wxObject )

cbBarDimHandlerBase::cbBarDimHandlerBase()
    : mRefCount(0)
{}

void cbBarDimHandlerBase::AddRef()
{
    ++mRefCount;
}

void cbBarDimHandlerBase::RemoveRef()
{
    if ( --mRefCount <= 0 ) delete this;
}

/***** Implementation for class cbDimInfo *****/

IMPLEMENT_DYNAMIC_CLASS( cbDimInfo, wxObject )

cbDimInfo::cbDimInfo()

    : mVertGap ( 0 ),
      mHorizGap( 0 ),

      mIsFixed(true),
      mpHandler( NULL )
{
    size_t i;
    for ( i = 0; i != MAX_BAR_STATES; ++i )
    {
        mSizes[i].x = 20;
        mSizes[i].y = 20;

        mBounds[i] = wxRect( -1,-1,-1,-1 );
    }
}

cbDimInfo::cbDimInfo( cbBarDimHandlerBase* pDimHandler,
                      bool                 isFixed  )

    : mVertGap ( 0 ),
      mHorizGap( 0 ),
      mIsFixed ( isFixed  ),

      mpHandler( pDimHandler )
{
    if ( mpHandler )
    {
        // int vtad = *((int*)mpHandler);
        mpHandler->AddRef();
    }

    size_t i;
    for ( i = 0; i != MAX_BAR_STATES; ++i )
    {
        mSizes[i].x = -1;
        mSizes[i].y = -1;

        mBounds[i] = wxRect( -1,-1,-1,-1 );
    }
}

cbDimInfo::cbDimInfo( int dh_x, int dh_y,
                      int dv_x, int dv_y,
                      int f_x,  int f_y,

                      bool isFixed,
                      int horizGap,
                      int vertGap,

                      cbBarDimHandlerBase* pDimHandler
                    )
    : mVertGap  ( vertGap   ),
      mHorizGap ( horizGap  ),
      mIsFixed  ( isFixed   ),
      mpHandler( pDimHandler )
{
    if ( mpHandler )
    {
        // int vtad = *((int*)mpHandler);
        mpHandler->AddRef();
    }

    mSizes[wxCBAR_DOCKED_HORIZONTALLY].x = dh_x;
    mSizes[wxCBAR_DOCKED_HORIZONTALLY].y = dh_y;
    mSizes[wxCBAR_DOCKED_VERTICALLY  ].x = dv_x;
    mSizes[wxCBAR_DOCKED_VERTICALLY  ].y = dv_y;
    mSizes[wxCBAR_FLOATING           ].x = f_x;
    mSizes[wxCBAR_FLOATING           ].y = f_y;

    size_t i;
    for ( i = 0; i != MAX_BAR_STATES; ++i )
        mBounds[i] = wxRect( -1,-1,-1,-1 );
}

cbDimInfo::cbDimInfo( int x, int y,
                      bool isFixed, int gap,
                      cbBarDimHandlerBase* pDimHandler)
  : mVertGap  ( gap ),
    mHorizGap ( gap ),
    mIsFixed  ( isFixed ),
    mpHandler( pDimHandler )
{
    if ( mpHandler )
    {
        // int vtad = *((int*)mpHandler);
        mpHandler->AddRef();
    }

    mSizes[wxCBAR_DOCKED_HORIZONTALLY].x = x;
    mSizes[wxCBAR_DOCKED_HORIZONTALLY].y = y;
    mSizes[wxCBAR_DOCKED_VERTICALLY  ].x = x;
    mSizes[wxCBAR_DOCKED_VERTICALLY  ].y = y;
    mSizes[wxCBAR_FLOATING           ].x = x;
    mSizes[wxCBAR_FLOATING           ].y = y;

    size_t i;
    for ( i = 0; i != MAX_BAR_STATES; ++i )
        mBounds[i] = wxRect( -1,-1,-1,-1 );
}

cbDimInfo::~cbDimInfo()
{
    if ( mpHandler )

        mpHandler->RemoveRef();
}

const cbDimInfo& cbDimInfo::operator=( const cbDimInfo& other )
{
    if ( this == &other )
        return *this;

    int i;
    for ( i = 0; i != MAX_BAR_STATES; ++i )
        mSizes[i] = other.mSizes[i];

    mIsFixed  = other.mIsFixed;
    mpHandler = other.mpHandler;

    mVertGap  = other.mVertGap;
    mHorizGap = other.mHorizGap;

    if ( mpHandler )

        mpHandler->AddRef();

    return *this;
}

/***** Implementation for structure cbCommonPaneProperties *****/

IMPLEMENT_DYNAMIC_CLASS( cbCommonPaneProperties, wxObject )

cbCommonPaneProperties::cbCommonPaneProperties(void)

    : mRealTimeUpdatesOn    ( true  ),
      mOutOfPaneDragOn      ( true  ),
      mExactDockPredictionOn( false ),
      mNonDestructFrictionOn( false ),
      mShow3DPaneBorderOn   ( true  ),
      mBarFloatingOn        ( false ),
      mRowProportionsOn     ( false ),
      mColProportionsOn     ( true  ),
      mBarCollapseIconsOn   ( false ),
      mBarDragHintsOn       ( false ),

      mMinCBarDim( 16, 16 ),
      mResizeHandleSize( 4 )
{}

cbCommonPaneProperties::cbCommonPaneProperties(const cbCommonPaneProperties& props)

    : wxObject(),
      mRealTimeUpdatesOn    (props.mRealTimeUpdatesOn),
      mOutOfPaneDragOn      (props.mOutOfPaneDragOn),
      mExactDockPredictionOn(props.mExactDockPredictionOn),
      mNonDestructFrictionOn(props.mNonDestructFrictionOn),
      mShow3DPaneBorderOn   (props.mShow3DPaneBorderOn),
      mBarFloatingOn        (props.mBarFloatingOn),
      mRowProportionsOn     (props.mRowProportionsOn),
      mColProportionsOn     (props.mColProportionsOn),
      mBarCollapseIconsOn   (props.mBarCollapseIconsOn),
      mBarDragHintsOn       (props.mBarDragHintsOn),

      mMinCBarDim(props.mMinCBarDim),
      mResizeHandleSize(props.mResizeHandleSize)
{}

cbCommonPaneProperties& cbCommonPaneProperties::operator=(const cbCommonPaneProperties& props)
{
    mRealTimeUpdatesOn     = props.mRealTimeUpdatesOn;
    mOutOfPaneDragOn       = props.mOutOfPaneDragOn;
    mExactDockPredictionOn = props.mExactDockPredictionOn;
    mNonDestructFrictionOn = props.mNonDestructFrictionOn;
    mShow3DPaneBorderOn    = props.mShow3DPaneBorderOn;
    mBarFloatingOn         = props.mBarFloatingOn;
    mRowProportionsOn      = props.mRowProportionsOn;
    mColProportionsOn      = props.mColProportionsOn;
    mBarCollapseIconsOn    = props.mBarCollapseIconsOn;
    mBarDragHintsOn        = props.mBarDragHintsOn;

    mMinCBarDim            = props.mMinCBarDim;
    mResizeHandleSize      = props.mResizeHandleSize;

    return *this;
}

/***** Implementation for class cbRowInfo *****/

IMPLEMENT_DYNAMIC_CLASS( cbRowInfo, wxObject )

cbRowInfo::cbRowInfo(void)

    : mNotFixedBarsCnt( false ),
      mpNext          ( NULL ),
      mpPrev          ( NULL ),
      mpExpandedBar   ( NULL )
{}

cbRowInfo::~cbRowInfo()
{
    // nothing! all bars are removed using global bar
    // list in wxFrameLayout class
}

/***** Implementation for class cbBarInfo *****/

IMPLEMENT_DYNAMIC_CLASS( cbBarInfo, wxObject )

cbBarInfo::cbBarInfo(void)

    : mpRow( NULL ),
      mFloatingOn( true ),
      mpNext( NULL ),
      mpPrev( NULL )
{}

cbBarInfo::~cbBarInfo()
{
    // nothing
}

/***** Implementation for class cbDockPane *****/

IMPLEMENT_DYNAMIC_CLASS( cbDockPane, wxObject )

// FIXME:: how to eliminate these cut&pasted constructors?

cbDockPane::cbDockPane(void)
    : mLeftMargin  ( 1 ),
      mRightMargin ( 1 ),
      mTopMargin   ( 1 ),
      mBottomMargin( 1 ),
      mPaneWidth ( 32768     ), // fake-up very large pane dims,
                                // since the real dimensions of the pane may not
                                // be known, while inserting bars initially
      mPaneHeight( 32768     ),
      mAlignment ( -1   ),
      mpLayout   ( 0 ),
      mpStoredRow( NULL )
{}

cbDockPane::cbDockPane( int alignment, wxFrameLayout* pPanel )

    :  mLeftMargin  ( 1 ),
      mRightMargin ( 1 ),
      mTopMargin   ( 1 ),
      mBottomMargin( 1 ),
      mPaneWidth ( 32768     ), // fake-up very large pane dims,
                                // since the real dimensions of the pane may not
                                // be known, while inserting bars initially
      mPaneHeight( 32768     ),
      mAlignment ( alignment ),
      mpLayout   ( pPanel    ),
      mpStoredRow( NULL )
{}

cbDockPane::~cbDockPane()
{
    size_t i;
    for ( i = 0; i != mRows.Count(); ++i )
        delete mRows[i];

    WX_CLEAR_LIST(wxList,mRowShapeData)

    // NOTE:: control bar infromation structures are cleaned-up
    //        in wxFrameLayout's destructor, using global control-bar list
}

void cbDockPane::SetMargins( int top, int bottom, int left, int right )
{
    mTopMargin    = top;
    mBottomMargin = bottom;
    mLeftMargin   = left;
    mRightMargin  = right;
}

/*** helpers of cbDockPane ***/

void cbDockPane::PaintBarDecorations( cbBarInfo* pBar, wxDC& dc )
{
    cbDrawBarDecorEvent evt( pBar, dc, this );

    mpLayout->FirePluginEvent( evt );
}

void cbDockPane::PaintBarHandles( cbBarInfo* pBar, wxDC& dc )
{
    cbDrawBarHandlesEvent evt( pBar, dc, this );

    mpLayout->FirePluginEvent( evt );
}

void cbDockPane::PaintBar( cbBarInfo* pBar, wxDC& dc )
{
    PaintBarDecorations( pBar, dc );
    PaintBarHandles( pBar, dc );
}

void cbDockPane::PaintRowHandles( cbRowInfo* pRow, wxDC& dc )
{
    cbDrawRowHandlesEvent evt( pRow, dc, this );

    mpLayout->FirePluginEvent( evt );

    cbDrawRowDecorEvent evt1( pRow, dc, this );

    mpLayout->FirePluginEvent( evt1 );
}

void cbDockPane::PaintRowBackground ( cbRowInfo* pRow, wxDC& dc )
{
    cbDrawRowBkGroundEvent evt( pRow, dc, this );

    mpLayout->FirePluginEvent( evt );
}

void cbDockPane::PaintRowDecorations( cbRowInfo* pRow, wxDC& dc )
{
    size_t i;

    // decorations first
    for ( i = 0; i != pRow->mBars.Count(); ++i )

        PaintBarDecorations( pRow->mBars[i], dc );

    // then handles if present
    for ( i = 0; i != pRow->mBars.Count(); ++i )

        PaintBarHandles( pRow->mBars[i], dc );
}

void cbDockPane::PaintRow( cbRowInfo* pRow, wxDC& dc )
{
    PaintRowBackground ( pRow, dc );
    PaintRowDecorations( pRow, dc );
    PaintRowHandles    ( pRow, dc );
}

void cbDockPane::PaintPaneBackground( wxDC& dc )
{
    cbDrawPaneBkGroundEvent evt( dc, this );

    mpLayout->FirePluginEvent( evt );
}