C++ BASE_SCREEN::GetCurItem方法代码示例

/* Redraw the current graphic item during its creation
 * Use this function to show a new outline, in begin command
 */
static void ShowNewEdgeModule( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aPosition,
                               bool aErase )
{
    BASE_SCREEN* screen = aPanel->GetScreen();
    EDGE_MODULE* edge   = (EDGE_MODULE*) screen->GetCurItem();

    if( edge == NULL )
        return;

    MODULE* module = (MODULE*) edge->GetParent();

    //  if( erase )
    {
        edge->Draw( aPanel, aDC, GR_XOR );
    }

    edge->SetEnd( aPanel->GetParent()->GetCrossHairPosition() );

    // Update relative coordinate.
    edge->SetEnd0( edge->GetEnd() - module->GetPosition() );

    wxPoint pt( edge->GetEnd0() );

    RotatePoint( &pt, -module->GetOrientation() );

    edge->SetEnd0( pt );

    edge->Draw( aPanel, aDC, GR_XOR );

    module->CalculateBoundingBox();
}

static void AbortMoveAndEditTarget( EDA_DRAW_PANEL* Panel, wxDC* DC )
{
    BASE_SCREEN* screen  = Panel->GetScreen();
    PCB_TARGET*  target = (PCB_TARGET*) screen->GetCurItem();

    ( (PCB_EDIT_FRAME*) Panel->GetParent() )->SetCurItem( NULL );

    Panel->SetMouseCapture( NULL, NULL );

    if( target == NULL )
        return;

    target->Draw( Panel, DC, GR_XOR );

    if( target->IsNew() )     // If it is new, delete it
    {
        target->Draw( Panel, DC, GR_XOR );
        target->DeleteStructure();
        target = NULL;
    }
    else    // it is an existing item: retrieve initial values of parameters
    {
        if( ( target->GetFlags() & (IN_EDIT | IS_MOVED) ) )
        {
            target->SetPosition( s_TargetCopy.GetPosition() );
            target->SetWidth( s_TargetCopy.GetWidth() );
            target->SetSize( s_TargetCopy.GetSize() );
            target->SetShape( s_TargetCopy.GetShape() );
        }

        target->ClearFlags();
        target->Draw( Panel, DC, GR_OR );
    }
}

static void Show_MoveTexte_Module( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aPosition,
                                   bool aErase )
{
    BASE_SCREEN*  screen = aPanel->GetScreen();
    TEXTE_MODULE* Text   = static_cast<TEXTE_MODULE*>( screen->GetCurItem() );

    if( Text == NULL )
        return;

    // Erase umbilical and text if necessary
    if( aErase )
    {
        Text->DrawUmbilical( aPanel, aDC, GR_XOR, -MoveVector );
        Text->Draw( aPanel, aDC, GR_XOR, MoveVector );
    }

    MoveVector = TextInitialPosition - aPanel->GetParent()->GetCrossHairPosition();

    // Draw umbilical if text moved
    if( MoveVector.x || MoveVector.y )
        Text->DrawUmbilical( aPanel, aDC, GR_XOR, -MoveVector );

    // Redraw text
    Text->Draw( aPanel, aDC, GR_XOR, MoveVector );
}

/**
 * Abort text move in progress.
 *
 * If a text is selected, its initial coordinates are regenerated.
 */
static void AbortMoveTextModule( EDA_DRAW_PANEL* Panel, wxDC* DC )
{
    BASE_SCREEN*  screen = Panel->GetScreen();
    TEXTE_MODULE* Text   = static_cast<TEXTE_MODULE*>( screen->GetCurItem() );
    MODULE*       Module;

    Panel->SetMouseCapture( NULL, NULL );

    if( Text == NULL )
        return;

    Module = static_cast<MODULE*>( Text->GetParent() );

    Text->DrawUmbilical( Panel, DC, GR_XOR, -MoveVector );
    Text->Draw( Panel, DC, GR_XOR, MoveVector );

    // If the text was moved (the move does not change internal data)
    // it could be rotated while moving. So set old value for orientation
    if( Text->IsMoving() )
        Text->SetTextAngle( TextInitialOrientation );

    // Redraw the text
    Panel->RefreshDrawingRect( Text->GetBoundingBox() );

    // leave it at (0,0) so we can use it Rotate when not moving.
    MoveVector.x = MoveVector.y = 0;

    Text->ClearFlags();
    Module->ClearFlags();

    screen->SetCurItem( NULL );
}

// Redraw the contour of the track while moving the mouse
static void ShowTargetShapeWhileMovingMouse( EDA_DRAW_PANEL* aPanel, wxDC* aDC,
                                             const wxPoint& aPosition, bool aErase )
{
    BASE_SCREEN* screen  = aPanel->GetScreen();
    PCB_TARGET*  target = (PCB_TARGET*) screen->GetCurItem();

    if( target == NULL )
        return;

    if( aErase )
        target->Draw( aPanel, aDC, GR_XOR );

    target->SetPosition( aPanel->GetParent()->GetCrossHairPosition() );

    target->Draw( aPanel, aDC, GR_XOR );
}

/* Move selected sheet with the cursor.
 * Callback function use by m_mouseCaptureCallback.
 */
static void MoveOrResizeSheet( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aPosition,
                               bool aErase )
{
    wxPoint        moveVector;
    BASE_SCREEN*   screen = aPanel->GetScreen();
    SCH_SHEET*     sheet = (SCH_SHEET*) screen->GetCurItem();

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

    wxPoint pos = sheet->GetPosition();

    if( sheet->IsResized() )
    {
        int width  = aPanel->GetParent()->GetCrossHairPosition().x - sheet->GetPosition().x;
        int height = aPanel->GetParent()->GetCrossHairPosition().y - sheet->GetPosition().y;

        // If the sheet doesn't have any pins, clamp the minimum size to the default values.
        width = ( width < MIN_SHEET_WIDTH ) ? MIN_SHEET_WIDTH : width;
        height = ( height < MIN_SHEET_HEIGHT ) ? MIN_SHEET_HEIGHT : height;

        if( sheet->HasPins() )
        {
            int gridSizeX = KiROUND( screen->GetGridSize().x );
            int gridSizeY = KiROUND( screen->GetGridSize().y );

            // If the sheet has pins, use the pin positions to clamp the minimum height.
            height = ( height < sheet->GetMinHeight() + gridSizeY ) ?
                     sheet->GetMinHeight() + gridSizeY : height;
            width = ( width < sheet->GetMinWidth() + gridSizeX ) ?
                    sheet->GetMinWidth() + gridSizeX : width;
        }

        wxPoint grid = aPanel->GetParent()->GetNearestGridPosition(
                        wxPoint( pos.x + width, pos.y + height ) );
        sheet->Resize( wxSize( grid.x - pos.x, grid.y - pos.y ) );
    }
    else if( sheet->IsMoving() )
    {
        moveVector = aPanel->GetParent()->GetCrossHairPosition() - pos;
        sheet->Move( moveVector );
    }

    sheet->Draw( aPanel, aDC, wxPoint( 0, 0 ), g_XorMode );
}

/* Redraw the current moved graphic item when mouse is moving
 * Use this function to show an existing outline, in move command
*/
static void ShowCurrentOutlineWhileMoving( EDA_DRAW_PANEL* aPanel, wxDC* aDC,
                                           const wxPoint& aPosition, bool aErase )
{
    BASE_SCREEN* screen = aPanel->GetScreen();
    EDGE_MODULE* edge   = (EDGE_MODULE*) screen->GetCurItem();

    if( edge == NULL )
        return;

    MODULE* module = (MODULE*) edge->GetParent();

    if( aErase )
    {
        edge->Draw( aPanel, aDC, GR_XOR, MoveVector );
    }

    MoveVector = -(aPanel->GetParent()->GetCrossHairPosition() - CursorInitialPosition);

    edge->Draw( aPanel, aDC, GR_XOR, MoveVector );

    module->CalculateBoundingBox();
}

void EDA_DRAW_PANEL::OnMouseEvent( wxMouseEvent& event )
{
    int          localbutt = 0;
    BASE_SCREEN* screen = GetScreen();

    if( !screen )
        return;

    /* Adjust value to filter mouse displacement before consider the drag
     * mouse is really a drag command, not just a movement while click
     */
#define MIN_DRAG_COUNT_FOR_START_BLOCK_COMMAND 5

    if( event.Leaving() )
        m_canStartBlock = -1;

    if( !IsMouseCaptured() )          // No mouse capture in progress.
        SetAutoPanRequest( false );

    if( GetParent()->IsActive() )
        SetFocus();
    else
        return;

    if( !event.IsButton() && !event.Moving() && !event.Dragging() )
        return;

    if( event.RightDown() )
    {
        OnRightClick( event );
        return;
    }

    if( m_ignoreMouseEvents )
        return;

    if( event.LeftDown() )
        localbutt = GR_M_LEFT_DOWN;

    if( event.ButtonDClick( 1 ) )
        localbutt = GR_M_LEFT_DOWN | GR_M_DCLICK;

    if( event.MiddleDown() )
        localbutt = GR_M_MIDDLE_DOWN;

    INSTALL_UNBUFFERED_DC( DC, this );
    DC.SetBackground( *wxBLACK_BRUSH );

    // Compute the cursor position in drawing (logical) units.
    GetParent()->SetMousePosition( event.GetLogicalPosition( DC ) );

    int kbstat = 0;

    if( event.ShiftDown() )
        kbstat |= GR_KB_SHIFT;

    if( event.ControlDown() )
        kbstat |= GR_KB_CTRL;

    if( event.AltDown() )
        kbstat |= GR_KB_ALT;

    // Calling Double Click and Click functions :
    if( localbutt == (int) ( GR_M_LEFT_DOWN | GR_M_DCLICK ) )
    {
        if( m_ClickTimer )
        {
            m_ClickTimer->Stop();
            wxDELETE( m_ClickTimer );
        }
        GetParent()->OnLeftDClick( &DC, GetParent()->RefPos( true ) );

        // inhibit a response to the mouse left button release,
        // because we have a double click, and we do not want a new
        // OnLeftClick command at end of this Double Click
        m_ignoreNextLeftButtonRelease = true;
    }
    else if( event.LeftUp() )
    {
        // A block command is in progress: a left up is the end of block
        // or this is the end of a double click, already seen
        // Note also m_ignoreNextLeftButtonRelease can be set by
        // the call to OnLeftClick(), so do not change it after calling OnLeftClick
        bool ignoreEvt = m_ignoreNextLeftButtonRelease;
        m_ignoreNextLeftButtonRelease = false;

        if( screen->m_BlockLocate.GetState() == STATE_NO_BLOCK && !ignoreEvt )
        {
            EDA_ITEM* item = screen->GetCurItem();
            m_CursorClickPos = GetParent()->RefPos( true );

            // If we have an item already selected, or we are using a tool,
            // we won't use the disambiguation menu so process the click immediately
            if( ( item && item->GetFlags() ) || GetParent()->GetToolId() != ID_NO_TOOL_SELECTED )
                GetParent()->OnLeftClick( &DC, m_CursorClickPos );
            else
            {
                wxDELETE( m_ClickTimer );
                m_ClickTimer = new wxTimer(this, ID_MOUSE_DOUBLECLICK);
                m_ClickTimer->StartOnce( m_doubleClickInterval );
//.........这里部分代码省略.........