C++ BLOCK_SELECTOR类代码示例

void LIB_EDIT_FRAME::HandleBlockPlace( wxDC* DC )
{
    BLOCK_SELECTOR* block = &GetScreen()->m_BlockLocate;
    wxPoint pt;

    if( !m_canvas->IsMouseCaptured() )
    {
        DisplayError( this, wxT( "HandleBlockPLace : m_mouseCaptureCallback = NULL" ) );
    }

    block->SetState( STATE_BLOCK_STOP );

    switch( block->GetCommand() )
    {
    case  BLOCK_IDLE:
        break;

    case BLOCK_DRAG:                // Drag
    case BLOCK_DRAG_ITEM:
    case BLOCK_MOVE:                // Move
    case BLOCK_DUPLICATE:           // Duplicate
        if( GetCurPart() && !block->AppendUndo() )
            SaveCopyInUndoList( GetCurPart() );

        pt = block->GetMoveVector();

        if( GetCurPart() )
            BlockMoveSelectedItems( pt, GetCurPart(), block );

        block->ClearItemsList();
        break;

    case BLOCK_PASTE:       // Paste (recopy the last block saved)
        if( GetCurPart() )
            SaveCopyInUndoList( GetCurPart() );

        pt = block->GetMoveVector();

        pasteClipboard( pt );

        block->ClearItemsList();
        break;

    case BLOCK_ZOOM:        // Handled by HandleBlockEnd
    case BLOCK_DELETE:
    case BLOCK_COPY:
    case BLOCK_ABORT:
    default:
        break;
    }

    RebuildView();
    GetCanvas()->Refresh();
    OnModify();

    block->SetState( STATE_NO_BLOCK );
    block->SetCommand( BLOCK_IDLE );
    GetScreen()->SetCurItem( NULL );
    m_canvas->EndMouseCapture( GetToolId(), GetGalCanvas()->GetCurrentCursor(), wxEmptyString, false );

    GetCanvas()->GetView()->ClearPreview();
    GetCanvas()->GetView()->ClearHiddenFlags();
}

bool EDA_DRAW_FRAME::HandleBlockBegin( wxDC* aDC, int aKey, const wxPoint& aPosition )
{
    BLOCK_SELECTOR* block = &GetScreen()->m_BlockLocate;

    if( ( block->GetCommand() != BLOCK_IDLE ) || ( block->GetState() != STATE_NO_BLOCK ) )
        return false;

    block->SetCommand( (BLOCK_COMMAND_T) BlockCommand( aKey ) );

    if( block->GetCommand() == 0 )
        return false;

    switch( block->GetCommand() )
    {
    case BLOCK_IDLE:
        break;

    case BLOCK_MOVE:                // Move
    case BLOCK_DRAG:                // Drag (block defined)
    case BLOCK_DRAG_ITEM:           // Drag from a drag item command
    case BLOCK_COPY:                // Copy
    case BLOCK_COPY_AND_INCREMENT:  // Copy and increment relevant references
    case BLOCK_DELETE:              // Delete
    case BLOCK_SAVE:                // Save
    case BLOCK_ROTATE:              // Rotate 90 deg
    case BLOCK_FLIP:                // Flip
    case BLOCK_ZOOM:                // Window Zoom
    case BLOCK_MIRROR_X:
    case BLOCK_MIRROR_Y:            // mirror
    case BLOCK_PRESELECT_MOVE:      // Move with preselection list
        block->InitData( m_canvas, aPosition );
        break;

    case BLOCK_PASTE:
        block->InitData( m_canvas, aPosition );
        block->SetLastCursorPosition( wxPoint( 0, 0 ) );
        InitBlockPasteInfos();

        if( block->GetCount() == 0 )      // No data to paste
        {
            DisplayError( this, wxT( "No block to paste" ), 20 );
            GetScreen()->m_BlockLocate.SetCommand( BLOCK_IDLE );
            m_canvas->SetMouseCaptureCallback( NULL );
            return true;
        }

        if( !m_canvas->IsMouseCaptured() )
        {
            block->ClearItemsList();
            DisplayError( this,
                          wxT( "EDA_DRAW_FRAME::HandleBlockBegin() Err: m_mouseCaptureCallback NULL" ) );
            return true;
        }

        block->SetState( STATE_BLOCK_MOVE );
        m_canvas->CallMouseCapture( aDC, aPosition, false );
        break;

    default:
        {
            wxString msg;
            msg << wxT( "EDA_DRAW_FRAME::HandleBlockBegin() error: Unknown command " ) <<
            block->GetCommand();
            DisplayError( this, msg );
        }
        break;
    }

    block->SetMessageBlock( this );
    return true;
}

bool LIB_EDIT_FRAME::HandleBlockEnd( wxDC* aDC )
{
    int ItemCount = 0;
    bool nextCmd = false;
    BLOCK_SELECTOR* block = &GetScreen()->m_BlockLocate;
    wxPoint pt;

    auto panel =static_cast<SCH_DRAW_PANEL*>(m_canvas);
    auto view = panel->GetView();
    auto area = view->GetSelectionArea();

    auto start = area->GetOrigin();
    auto end = area->GetEnd();

    block->SetOrigin( wxPoint( start.x, start.y ) );
    block->SetEnd( wxPoint( end.x, end.y ) );

    view->ShowSelectionArea( false );
    view->ClearHiddenFlags();

    if( block->GetCount() )
    {
        BLOCK_STATE_T state     = block->GetState();
        BLOCK_COMMAND_T command = block->GetCommand();

        m_canvas->CallEndMouseCapture( aDC );

        block->SetState( state );
        block->SetCommand( command );
        m_canvas->SetMouseCapture( DrawAndSizingBlockOutlines, AbortBlockCurrentCommand );

        if( block->GetCommand() != BLOCK_ABORT
            && block->GetCommand() != BLOCK_DUPLICATE
            && block->GetCommand() != BLOCK_COPY
            && block->GetCommand() != BLOCK_CUT
            && block->GetCommand() != BLOCK_DELETE )
        {
            SetCrossHairPosition( block->GetEnd() );
            m_canvas->MoveCursorToCrossHair();
        }
    }

    if( m_canvas->IsMouseCaptured() )
    {
        switch( block->GetCommand() )
        {
        case  BLOCK_IDLE:
            DisplayError( this, wxT( "Error in HandleBlockPLace" ) );
            break;

        case BLOCK_DRAG:        // Drag
        case BLOCK_DRAG_ITEM:
        case BLOCK_MOVE:        // Move
        case BLOCK_DUPLICATE:   // Duplicate
            if( GetCurPart() )
                ItemCount = BlockSelectItems( GetCurPart(), block, m_unit, m_convert, m_syncPinEdit );

            if( ItemCount )
            {
                nextCmd = true;
                block->SetState( STATE_BLOCK_MOVE );

                if( block->GetCommand() == BLOCK_DUPLICATE )
                {
                    if( block->AppendUndo() )
                        ; // UR_LIBEDIT saves entire state, so no need to append anything more
                    else
                    {
                        SaveCopyInUndoList( GetCurPart(), UR_LIBEDIT );
                        block->SetAppendUndo();
                    }

                    BlockCopySelectedItems( pt, GetCurPart(), block );
                    block->SetLastCursorPosition( GetCrossHairPosition( true ) );
                }

                m_canvas->SetMouseCaptureCallback( DrawMovingBlockOutlines );
                m_canvas->CallMouseCapture( aDC, wxDefaultPosition, false );
            }
            else
            {
                m_canvas->CallMouseCapture( aDC, wxDefaultPosition, false );
                m_canvas->SetMouseCapture( NULL, NULL );
            }
            break;

        case BLOCK_COPY:    // Save a copy of items in the clipboard buffer
        case BLOCK_CUT:
            if( GetCurPart() )
                ItemCount = BlockSelectItems( GetCurPart(), block, m_unit, m_convert, m_syncPinEdit );

            if( ItemCount )
            {
                copySelectedItems();
                auto cmd = block->GetCommand();

                if( cmd == BLOCK_COPY )
                {
                    BlockClearSelectedItems( GetCurPart(), block );
                    block->ClearItemsList();
//.........这里部分代码省略.........

void DrawAndSizingBlockOutlines( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aPosition,
                                 bool aErase )
{
    BLOCK_SELECTOR* block;

    block = &aPanel->GetScreen()->m_BlockLocate;

    block->SetMoveVector( wxPoint( 0, 0 ) );

    if( aErase )
        block->Draw( aPanel, aDC, wxPoint( 0, 0 ), g_XorMode, block->GetColor() );

    block->SetLastCursorPosition( aPanel->GetParent()->GetCrossHairPosition() );
    block->SetEnd( aPanel->GetParent()->GetCrossHairPosition() );

    block->Draw( aPanel, aDC, wxPoint( 0, 0 ), g_XorMode, block->GetColor() );

    if( block->GetState() == STATE_BLOCK_INIT )
    {
        if( block->GetWidth() || block->GetHeight() )
            // 2nd point exists: the rectangle is not surface anywhere
            block->SetState( STATE_BLOCK_END );
    }
}

/* Traces the outline of the search block structures
 * The entire block follows the cursor
 */
static void DrawMovingBlockOutlines( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aPosition,
                                     bool aErase )
{
    BASE_SCREEN*    screen = aPanel->GetScreen();
    BLOCK_SELECTOR* block = &screen->m_BlockLocate;
    SCH_ITEM*       schitem;

    /* Erase old block contents. */
    if( aErase )
    {
        block->Draw( aPanel, aDC, block->GetMoveVector(), g_XorMode, block->GetColor() );

        for( unsigned ii = 0; ii < block->GetCount(); ii++ )
        {
            schitem = (SCH_ITEM*) block->GetItem( ii );
            schitem->Draw( aPanel, aDC, block->GetMoveVector(), g_XorMode, g_GhostColor );
        }
    }

    /* Repaint new view. */
    block->SetMoveVector( aPanel->GetParent()->GetCrossHairPosition() - block->GetLastCursorPosition() );
    block->Draw( aPanel, aDC, block->GetMoveVector(), g_XorMode, block->GetColor() );

    for( unsigned ii = 0; ii < block->GetCount(); ii++ )
    {
        schitem = (SCH_ITEM*) block->GetItem( ii );
        schitem->Draw( aPanel, aDC, block->GetMoveVector(), g_XorMode, g_GhostColor );
    }
}

bool SCH_EDIT_FRAME::HandleBlockEnd( wxDC* aDC )
{
    bool            nextcmd = false;
    bool            zoom_command = false;
    BLOCK_SELECTOR* block = &GetScreen()->m_BlockLocate;

    if( block->GetCount() )
    {
        BLOCK_STATE_T   state   = block->GetState();
        BLOCK_COMMAND_T command = block->GetCommand();

        m_canvas->CallEndMouseCapture( aDC );

        block->SetState( state );
        block->SetCommand( command );
        m_canvas->SetMouseCapture( DrawAndSizingBlockOutlines, AbortBlockCurrentCommand );
        SetCrossHairPosition( block->GetEnd() );

        if( block->GetCommand() != BLOCK_ABORT )
            m_canvas->MoveCursorToCrossHair();
    }

    if( m_canvas->IsMouseCaptured() )
    {
        switch( block->GetCommand() )
        {
        case BLOCK_IDLE:
            DisplayError( this, wxT( "Error in HandleBlockPLace()" ) );
            break;

        case BLOCK_ROTATE:
            GetScreen()->UpdatePickList();
            DrawAndSizingBlockOutlines( m_canvas, aDC, wxDefaultPosition, false );

            if( block->GetCount() )
            {
                // Compute the rotation center and put it on grid:
                wxPoint rotationPoint = block->Centre();
                rotationPoint = GetNearestGridPosition( rotationPoint );
                SetCrossHairPosition( rotationPoint );
                SaveCopyInUndoList( block->GetItems(), UR_ROTATED, rotationPoint );
                RotateListOfItems( block->GetItems(), rotationPoint );
                OnModify();
            }

            block->ClearItemsList();
            GetScreen()->TestDanglingEnds( m_canvas, aDC );
            m_canvas->Refresh();
            break;

        case BLOCK_DRAG:
        case BLOCK_DRAG_ITEM:   // Drag from a drag command
            GetScreen()->BreakSegmentsOnJunctions();
            // fall through

        case BLOCK_MOVE:
        case BLOCK_COPY:
            if( block->GetCommand() == BLOCK_DRAG_ITEM &&
                GetScreen()->GetCurItem() != NULL )
            {
                // This is a drag command, not a mouse block command
                // Only this item is put in list
                ITEM_PICKER picker;
                picker.SetItem( GetScreen()->GetCurItem() );
                block->PushItem( picker );
            }
            else
            {
                // Collect all items in the locate block
                GetScreen()->UpdatePickList();
            }
            // fall through

        case BLOCK_PRESELECT_MOVE: /* Move with preselection list*/
            if( block->GetCount() )
            {
                nextcmd = true;
                GetScreen()->SelectBlockItems();
                m_canvas->CallMouseCapture( aDC, wxDefaultPosition, false );
                m_canvas->SetMouseCaptureCallback( DrawMovingBlockOutlines );
                m_canvas->CallMouseCapture( aDC, wxDefaultPosition, false );
                block->SetState( STATE_BLOCK_MOVE );
            }
            else
            {
                m_canvas->CallMouseCapture( aDC, wxDefaultPosition, false );
                m_canvas->SetMouseCapture( NULL, NULL );
            }
            break;

        case BLOCK_DELETE:
            GetScreen()->UpdatePickList();
            DrawAndSizingBlockOutlines( m_canvas, aDC, wxDefaultPosition, false );

            if( block->GetCount() )
            {
                DeleteItemsInList( m_canvas, block->GetItems() );
                OnModify();
            }
            block->ClearItemsList();
//.........这里部分代码省略.........

void SCH_EDIT_FRAME::HandleBlockPlace( wxDC* DC )
{
    BLOCK_SELECTOR* block = &GetScreen()->m_BlockLocate;

    if( !m_canvas->IsMouseCaptured() )
    {
        DisplayError( this, wxT( "HandleBlockPLace() : m_mouseCaptureCallback = NULL" ) );
    }

    if( block->GetCount() == 0 )
    {
        wxString msg;
        msg.Printf( wxT( "HandleBlockPLace() error : no items to place (cmd %d, state %d)" ),
                    block->GetCommand(), block->GetState() );
        DisplayError( this, msg );
    }

    block->SetState( STATE_BLOCK_STOP );

    switch( block->GetCommand() )
    {
    case BLOCK_DRAG:        // Drag from mouse
    case BLOCK_DRAG_ITEM:   // Drag from a component selection and drag command
    case BLOCK_MOVE:
        if( m_canvas->IsMouseCaptured() )
            m_canvas->CallMouseCapture( DC, wxDefaultPosition, false );

        SaveCopyInUndoList( block->GetItems(), UR_MOVED, block->GetMoveVector() );
        MoveItemsInList( block->GetItems(), block->GetMoveVector() );
        block->ClearItemsList();
        break;

    case BLOCK_COPY:                /* Copy */
    case BLOCK_PRESELECT_MOVE:      /* Move with preselection list*/
        if( m_canvas->IsMouseCaptured() )
            m_canvas->CallMouseCapture( DC, wxDefaultPosition, false );

        DuplicateItemsInList( GetScreen(), block->GetItems(), block->GetMoveVector() );

        SaveCopyInUndoList( block->GetItems(),
                            ( block->GetCommand() == BLOCK_PRESELECT_MOVE ) ? UR_CHANGED : UR_NEW );

        block->ClearItemsList();
        break;

    case BLOCK_PASTE:
        if( m_canvas->IsMouseCaptured() )
            m_canvas->CallMouseCapture( DC, wxDefaultPosition, false );

        PasteListOfItems( DC );
        block->ClearItemsList();
        break;

    default:        // others are handled by HandleBlockEnd()
       break;
    }

    OnModify();

    // clear dome flags and pointers
    GetScreen()->ClearDrawingState();
    GetScreen()->ClearBlockCommand();
    GetScreen()->SetCurItem( NULL );
    GetScreen()->TestDanglingEnds( m_canvas, DC );

    if( block->GetCount() )
    {
        DisplayError( this, wxT( "HandleBlockPLace() error: some items left in buffer" ) );
        block->ClearItemsList();
    }

    m_canvas->EndMouseCapture( GetToolId(), m_canvas->GetCurrentCursor(), wxEmptyString, false );
    m_canvas->Refresh();
}