C++ LIB_ITEM类代码示例

void LIB_EDIT_FRAME::copySelectedItems()
{
    LIB_PART* part = GetCurPart();

    if( !part )
        return;

    m_clipboard.ClearListAndDeleteItems();   // delete previous saved list, if exists
    m_clipboard.SetLastCursorPosition( GetScreen()->m_BlockLocate.GetEnd() );    // store the reference point

    for( LIB_ITEM& item : part->GetDrawItems() )
    {
        // We *do not* copy fields because they are unique for the whole component
        // so skip them (do not duplicate) if they are flagged selected.
        if( item.Type() == LIB_FIELD_T )
            item.ClearFlags( SELECTED );

        if( !item.IsSelected() )
            continue;

        // Do not clear the 'selected' flag. It is required to have items drawn when they are pasted.
        LIB_ITEM* copy = (LIB_ITEM*) item.Clone();
        copy->SetFlags( copy->GetFlags() | UR_TRANSIENT );
        ITEM_PICKER picker( copy, UR_NEW );
        m_clipboard.PushItem( picker );
    }
}

LIB_ITEM* LIB_EDIT_FRAME::locateItem( const wxPoint& aPosition, const KICAD_T aFilterList[] )
{
    if( m_component == NULL )
        return NULL;

    LIB_ITEM* item = NULL;

    m_collectedItems.Collect( m_component->GetDrawItemList(), aFilterList, aPosition,
                              m_unit, m_convert );

    if( m_collectedItems.GetCount() == 0 )
    {
        ClearMsgPanel();
    }
    else if( m_collectedItems.GetCount() == 1 )
    {
        item = m_collectedItems[0];
    }
    else
    {
        if( item == NULL )
        {
            wxASSERT_MSG( m_collectedItems.GetCount() <= MAX_SELECT_ITEM_IDS,
                          wxT( "Select item clarification context menu size limit exceeded." ) );

            wxMenu selectMenu;
            wxMenuItem* title = new wxMenuItem( &selectMenu, wxID_NONE, _( "Clarify Selection" ) );

            selectMenu.Append( title );
            selectMenu.AppendSeparator();

            for( int i = 0;  i < m_collectedItems.GetCount() && i < MAX_SELECT_ITEM_IDS;  i++ )
            {
                wxString text = m_collectedItems[i]->GetSelectMenuText();
                BITMAP_DEF xpm = m_collectedItems[i]->GetMenuImage();
                AddMenuItem( &selectMenu, ID_SELECT_ITEM_START + i, text, KiBitmap( xpm ) );
            }

            // Set to NULL in case user aborts the clarification context menu.
            m_drawItem = NULL;
            m_canvas->SetAbortRequest( true );   // Changed to false if an item is selected
            PopupMenu( &selectMenu );
            m_canvas->MoveCursorToCrossHair();
            item = m_drawItem;
        }
    }

    if( item )
    {
        MSG_PANEL_ITEMS items;
        item->GetMsgPanelInfo( items );
        SetMsgPanel( items );
    }
    else
    {
        ClearMsgPanel();
    }

    return item;
}

/*
 * Redraw the graphic shape while moving
 */
static void RedrawWhileMovingCursor( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aPosition,
                                     bool aErase )
{
    LIB_ITEM* item;

    item = ( (LIB_EDIT_FRAME*) aPanel->GetParent() )->GetDrawItem();

    if( item == NULL )
        return;

    item->SetEraseLastDrawItem( aErase );

    // if item is the reference field, we must add the current unit id
    if( item->Type() == LIB_FIELD_T )
    {
        int         unit = ((LIB_EDIT_FRAME*)aPanel->GetParent())->GetUnit();
        wxString    text = ((LIB_FIELD*)item)->GetFullText( unit );

        item->Draw( aPanel, aDC, aPanel->GetParent()->GetCrossHairPosition( true ),
                    COLOR4D::UNSPECIFIED, g_XorMode, &text,
                    DefaultTransform );
    }
    else
        item->Draw( aPanel, aDC, aPanel->GetParent()->GetCrossHairPosition( true ),
                    COLOR4D::UNSPECIFIED, g_XorMode, NULL,
                    DefaultTransform );
}

void LIB_EDIT_FRAME::BlockCopySelectedItems( const wxPoint& aOffset, LIB_PART* aPart, BLOCK_SELECTOR* aBlock )
{
    PICKED_ITEMS_LIST& aItemsList = aBlock->GetItems();
    LIB_ITEM* oldItem;
    LIB_ITEM* newItem;

    for( unsigned ii = 0; ii < aItemsList.GetCount(); ii++ )
    {
        oldItem = static_cast<LIB_ITEM*>( aItemsList.GetPickedItem( ii ) );

        // We *do not* copy fields because they are unique for the whole component
        // so skip them (do not duplicate) if they are flagged selected.
        if( oldItem->Type() == LIB_FIELD_T )
            oldItem->ClearFlags( SELECTED );

        if( !oldItem->IsSelected() )
            continue;

        newItem = (LIB_ITEM*) oldItem->Clone();
        newItem->SetFlags( SELECTED );
        oldItem->ClearFlags( SELECTED );

        newItem->SetOffset( aBlock->GetMoveVector() );

        aItemsList.SetPickedItem( newItem, ii );
        aItemsList.SetPickedItemStatus( UR_NEW, ii );

        aPart->GetDrawItems().push_back( newItem );
    }
}

//! @brief Manage mouse events when creating new graphic object or modifying an graphic object.
static void SymbolDisplayDraw( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aPosition,
                               bool aErase )
{
    LIB_ITEM* item = ( (LIB_EDIT_FRAME*) aPanel->GetParent() )->GetDrawItem();

    if( item == NULL )
        return;

    item->SetEraseLastDrawItem( aErase );
    item->Draw( aPanel, aDC, aPanel->GetParent()->GetCrossHairPosition( true ),
                COLOR4D::UNSPECIFIED, g_XorMode, NULL, DefaultTransform );
}

void LIB_EDIT_FRAME::StartModifyDrawSymbol( wxDC* DC )
{
    LIB_ITEM* item = GetDrawItem();

    if( item == NULL )
        return;

    TempCopyComponent();
    item->BeginEdit( IS_RESIZED, GetCrossHairPosition( true ) );
    m_canvas->SetMouseCapture( SymbolDisplayDraw, AbortSymbolTraceOn );
    m_canvas->CallMouseCapture( DC, wxDefaultPosition, true );
}

int LIB_TEXT::compare( const LIB_ITEM& other ) const
{
    wxASSERT( other.Type() == LIB_TEXT_T );

    const LIB_TEXT* tmp = ( LIB_TEXT* ) &other;

    int result = m_Text.CmpNoCase( tmp->m_Text );

    if( result != 0 )
        return result;

    if( m_Pos.x != tmp->m_Pos.x )
        return m_Pos.x - tmp->m_Pos.x;

    if( m_Pos.y != tmp->m_Pos.y )
        return m_Pos.y - tmp->m_Pos.y;

    if( m_Size.x != tmp->m_Size.x )
        return m_Size.x - tmp->m_Size.x;

    if( m_Size.y != tmp->m_Size.y )
        return m_Size.y - tmp->m_Size.y;

    return 0;
}

int LIB_TEXT::compare( const LIB_ITEM& other ) const
{
    wxASSERT( other.Type() == LIB_TEXT_T );

    const LIB_TEXT* tmp = ( LIB_TEXT* ) &other;

    int result = m_Text.CmpNoCase( tmp->m_Text );

    if( result != 0 )
        return result;

    if( GetTextPos().x != tmp->GetTextPos().x )
        return GetTextPos().x - tmp->GetTextPos().x;

    if( GetTextPos().y != tmp->GetTextPos().y )
        return GetTextPos().y - tmp->GetTextPos().y;

    if( GetTextWidth() != tmp->GetTextWidth() )
        return GetTextWidth() - tmp->GetTextWidth();

    if( GetTextHeight() != tmp->GetTextHeight() )
        return GetTextHeight() - tmp->GetTextHeight();

    return 0;
}

bool LIB_ITEM::operator==( const LIB_ITEM& aOther ) const
{
    return ( ( Type() == aOther.Type() )
             && ( m_Unit == aOther.m_Unit )
             && ( m_Convert == aOther.m_Convert )
             && compare( aOther ) == 0 );
}

static void AbortSymbolTraceOn( EDA_DRAW_PANEL* Panel, wxDC* DC )
{
    LIB_EDIT_FRAME* parent = (LIB_EDIT_FRAME*) Panel->GetParent();
    LIB_ITEM* item = parent->GetDrawItem();

    if( item == NULL )
        return;

    bool newItem = item->IsNew();
    item->EndEdit( parent->GetCrossHairPosition( true ), true );

    if( newItem )
    {
        delete item;
    }
    else
        parent->RestoreComponent();

    parent->SetDrawItem( NULL );
    Panel->Refresh();
}

/*
 * Traces the outline of the search block structures
 * The entire block follows the cursor
 */
void DrawMovingBlockOutlines( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aPosition,
                              bool aErase )
{
    SCH_DRAW_PANEL*    panel =static_cast<SCH_DRAW_PANEL*>( aPanel );
    LIB_EDIT_FRAME*    frame = (LIB_EDIT_FRAME*) aPanel->GetParent();
    KIGFX::SCH_VIEW*   view = panel->GetView();
    KIGFX::VIEW_GROUP* preview = view->GetPreview();

    BASE_SCREEN*       screen = aPanel->GetScreen();
    BLOCK_SELECTOR*    block = &screen->m_BlockLocate;
    LIB_PART*          component = frame->GetCurPart();

    if( component == NULL )
        return;

    block->SetMoveVector( frame->GetCrossHairPosition( true ) - block->GetLastCursorPosition() );

    preview->Clear();
    view->SetVisible( preview, true );

    for( unsigned ii = 0; ii < block->GetCount(); ii++ )
    {
        LIB_ITEM* libItem = (LIB_ITEM*) block->GetItem( ii );
        LIB_ITEM* copy = static_cast<LIB_ITEM*>( libItem->Clone() );

        copy->Move( copy->GetPosition() + block->GetMoveVector() );
        copy->SetFlags( IS_MOVED );
        preview->Add( copy );

        view->Hide( libItem );
    }

    view->Update( preview );
}

void LIB_EDIT_FRAME::InitBlockPasteInfos()
{
    BLOCK_SELECTOR& block = GetScreen()->m_BlockLocate;

    // Copy the clipboard contents to the screen block selector
    // (only the copy, the new instances will be appended to the part once the items are placed)
    block.GetItems().CopyList( m_clipboard.GetItems() );

    // Set block items to the current unit & DeMorgan variant
    for( size_t i = 0; i < m_clipboard.GetItems().GetCount(); ++i )
    {
        LIB_ITEM* item = dynamic_cast<LIB_ITEM*>( m_clipboard.GetItem( i ) );

        if( item )
        {
            item->SetUnit( m_unit );
            item->SetConvert( m_convert );
        }
    }

    // Set the paste reference point
    block.SetLastCursorPosition( m_clipboard.GetLastCursorPosition() );
    m_canvas->SetMouseCaptureCallback( DrawMovingBlockOutlines );
}

int LIB_CIRCLE::compare( const LIB_ITEM& aOther ) const
{
    wxASSERT( aOther.Type() == LIB_CIRCLE_T );

    const LIB_CIRCLE* tmp = ( LIB_CIRCLE* ) &aOther;

    if( m_Pos.x != tmp->m_Pos.x )
        return m_Pos.x - tmp->m_Pos.x;

    if( m_Pos.y != tmp->m_Pos.y )
        return m_Pos.y - tmp->m_Pos.y;

    if( m_Radius != tmp->m_Radius )
        return m_Radius - tmp->m_Radius;

    return 0;
}

bool LIB_ITEM::operator<( const LIB_ITEM& aOther ) const
{
    int result = m_Convert - aOther.m_Convert;

    if( result != 0 )
        return result < 0;

    result = m_Unit - aOther.m_Unit;

    if( result != 0 )
        return result < 0;

    result = Type() - aOther.Type();

    if( result != 0 )
        return result < 0;

    return ( compare( aOther ) < 0 );
}

int LIB_RECTANGLE::compare( const LIB_ITEM& aOther ) const
{
    wxASSERT( aOther.Type() == LIB_RECTANGLE_T );

    const LIB_RECTANGLE* tmp = ( LIB_RECTANGLE* ) &aOther;

    if( m_Pos.x != tmp->m_Pos.x )
        return m_Pos.x - tmp->m_Pos.x;

    if( m_Pos.y != tmp->m_Pos.y )
        return m_Pos.y - tmp->m_Pos.y;

    if( m_End.x != tmp->m_End.x )
        return m_End.x - tmp->m_End.x;

    if( m_End.y != tmp->m_End.y )
        return m_End.y - tmp->m_End.y;

    return 0;
}