C++ GetScreenPosition函数代码示例

//Gives the pivot position over the screen
iPoint GuiItem::GetPivotPosition()
{
	iPoint ret = pivot;
	ret += GetScreenPosition();

	return ret;
}

void EDA_DRAW_PANEL::OnKeyEvent( wxKeyEvent& event )
{
    int localkey;
    wxPoint pos;

    localkey = event.GetKeyCode();

    switch( localkey )
    {
    default:
        break;

    case WXK_ESCAPE:
        m_abortRequest = true;

        if( IsMouseCaptured() )
            EndMouseCapture();
        else
            EndMouseCapture( ID_NO_TOOL_SELECTED, m_defaultCursor, wxEmptyString );
        break;
    }

    /* Normalize keys code to easily handle keys from Ctrl+A to Ctrl+Z
     * They have an ascii code from 1 to 27 remapped
     * to GR_KB_CTRL + 'A' to GR_KB_CTRL + 'Z'
     */
    if( event.ControlDown() && localkey >= WXK_CONTROL_A && localkey <= WXK_CONTROL_Z )
        localkey += 'A' - 1;

    /* Disallow shift for keys that have two keycodes on them (e.g. number and
     * punctuation keys) leaving only the "letter keys" of A-Z.
     * Then, you can have, e.g. Ctrl-5 and Ctrl-% (GB layout)
     * and Ctrl-( and Ctrl-5 (FR layout).
     * Otherwise, you'd have to have to say Ctrl-Shift-5 on a FR layout
     */
    bool keyIsLetter = ( localkey >= 'A' && localkey <= 'Z' ) ||
                       ( localkey >= 'a' && localkey <= 'z' );

    if( event.ShiftDown() && ( keyIsLetter || localkey > 256 ) )
        localkey |= GR_KB_SHIFT;

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

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

    INSTALL_UNBUFFERED_DC( DC, this );

    // Some key commands use the current mouse position: refresh it.
    pos = wxGetMousePosition() - GetScreenPosition();

    // Compute the cursor position in drawing units.  Also known as logical units to wxDC.
    pos = wxPoint( DC.DeviceToLogicalX( pos.x ), DC.DeviceToLogicalY( pos.y ) );

    GetParent()->SetMousePosition( pos );

    if( !GetParent()->GeneralControl( &DC, pos, localkey ) )
        event.Skip();
}

void
QvisText2DInterface::GetCurrentValues(int which_widget)
{
    bool doAll = (which_widget == -1);

    if(which_widget == 0 || doAll)
    {
        // Get the new position
        GetScreenPosition(positionEdit, tr("Lower left"));
    }

    if(which_widget == 1 || doAll)
    {
        stringVector sv;
        sv.push_back(textLineEdit->text().toStdString());
        annot->SetText(sv);
    }

    if(which_widget == 2 || doAll)
    {
        // Get its new current value and store it in the atts.
        ForceSpinBoxUpdate(heightSpinBox);
        int w = heightSpinBox->value();
        double pos2[3];
        pos2[0] = double(w) * 0.01;
        pos2[1] = annot->GetPosition2()[1];
        pos2[2] = annot->GetPosition2()[2];
        annot->SetPosition2(pos2);
    }
}

/** OnInit
  *
  * Called when the machine needs to be initialized
  */
void ComplxFrame::OnInit(void)
{
    static bool first = true;
    lc3_init(state, true);

    if (console != NULL) delete console;
    console = new LC3Console(this);

    state.input = &console->inputStream;
    state.reader = complx_reader;
    state.peek = complx_peek;
    state.writer = complx_writer;
    // For keyboard interrupts
    state.interrupt_test.push_back(complx_step);

    console->Show();

    int x, y;
    GetScreenPosition(&x, &y);
    if (first)
    {
        Move(x + console->GetSize().GetX() / 2, y);
        console->Move(x - console->GetSize().GetX() / 2, y);
        first = false;
    }
    else
    {
        console->Move(x - console->GetSize().GetX(), y);
    }

    lc3_set_true_traps(state, menuStateTrueTraps->IsChecked());
    state.interrupt_enabled = menuStateInterrupts->IsChecked();
    state.max_stack_size = stack_size;
    state.max_call_stack_size = call_stack_size;
}

void TWidget::_handle_mouseMove(const TEvent_MouseMoved& event, bool& consume) {
    consume = false;

    if (IsVisible() == false) {
        return;
    }

    const auto& mousePosition = event;
    const auto position = GetScreenPosition();
    const auto bounds = position + GetOwnSize();
    const bool isOver = IsVisible() &&
        isPointInRect(mousePosition.x, mousePosition.y,
            position.x, position.y, bounds.x, bounds.y);

    if ((isOver == true) && (mouseOver == false)) {
        _OnHover();
        GetSignal(DefaultSignalID::MouseEntered).Send();
    } else if ((isOver == false) && (mouseOver == true)) {
        _OnMouseLeave();
        GetSignal(DefaultSignalID::MouseLeave).Send();
    } else {
        /*none*/
    }

    mouseOver = isOver;
}

  /**
   * Returns the position within the parent window.
   */
  gcc_pure
  const PixelRect GetPosition() const
  {
#ifndef USE_GDI
    return { GetLeft(), GetTop(), GetRight(), GetBottom() };
#else
    PixelRect rc = GetScreenPosition();

    HWND parent = ::GetParent(hWnd);
    if (parent != NULL) {
      POINT pt;

      pt.x = rc.left;
      pt.y = rc.top;
      ::ScreenToClient(parent, &pt);
      rc.left = pt.x;
      rc.top = pt.y;

      pt.x = rc.right;
      pt.y = rc.bottom;
      ::ScreenToClient(parent, &pt);
      rc.right = pt.x;
      rc.bottom = pt.y;
    }
    return rc;
#endif
  }

	void IDraggable::OnMessageReceived(UINT uMsg, WPARAM wParam, LPARAM lParam) {
		if (!IsVisible()) {
			if (IsDragged() && !_notifyDragEndEvent(nullptr))
				ClearDrag();

			return;
		}

		Utils::Vector2 position(lParam);
		IComponent::OnMessageReceived(uMsg, wParam, lParam);

		switch(uMsg)
		{
		case WM_LBUTTONDOWN:
			if (!sWndProc.LastMessageHandled) {
				if (!IsDragged() && PtInBoundingRect(position) &&
					!_notifyDragBeginEvent(&position))
					StartDrag(position - GetScreenPosition());

				sWndProc.LastMessageHandled |= IsDragged();
			}
			break;

		case WM_LBUTTONUP:
			if (IsDragged()) {
				if (!_notifyDragEndEvent(&position))
					ClearDrag();

				sWndProc.LastMessageHandled = true;
			}
			break;

		case WM_MOUSEMOVE:
			if (IsDragged() && GetGlobalInterface()->ClipStack.PtInClipArea(position) &&
				!_notifyDragMoveEvent(&position)) {
				position -= s_dragVector;
				auto pParent = GetUIParent();
				if (pParent != nullptr)
					position -= pParent->GetScreenPosition();

				SetPosition(position);
			}

			sWndProc.LastMessageHandled |= IsDragged();
			break;
		};
	}

void mmTransDialog::OnCustomFields(wxCommandEvent& /*event*/)
{
    const wxString& RefType = Model_Attachment::reftype_desc(Model_Attachment::TRANSACTION);
    int TransID = m_trx_data.TRANSID;
    if (m_duplicate) TransID = -1;
    CustomFieldDialog_ = new mmCustomFieldDialog(this, GetScreenPosition(), GetSize(), RefType, TransID);
    CustomFieldDialog_->Show();
}

	RECT IRectComponent::GetFullRect() const {
		RECT fullRect = {0};
		Utils::Vector2 position = GetScreenPosition();
		fullRect.left = static_cast<LONG>(position.x);
		fullRect.right = static_cast<LONG>(position.x + GetWidth());
		fullRect.top = static_cast<LONG>(position.y);
		fullRect.bottom = static_cast<LONG>(position.y + GetHeight());
		return fullRect;
	}

NS_IMETHODIMP
BoxObject::GetScreenY(int32_t *_retval)
{
    nsIntPoint position;
    nsresult rv = GetScreenPosition(position);
    if (NS_FAILED(rv)) return rv;
    *_retval = position.y;
    return NS_OK;
}

bool TAbstractWindow::_isMouseOverHeader() const {
    if (HasHeader() == false) {
        return false;
    }

    const TCoordinate position = GetScreenPosition();
    return IO::IsCursorInRect(position.x, position.y,
        position.x + size.x, position.y + headerHeight);
}

bool wxRibbonPanel::ShowExpanded()
{
    if(!IsMinimised())
    {
        return false;
    }
    if(m_expanded_dummy != NULL || m_expanded_panel != NULL)
    {
        return false;
    }

    wxSize size = GetBestSize();
    wxPoint pos = GetExpandedPosition(wxRect(GetScreenPosition(), GetSize()),
                                      size, m_preferred_expand_direction).GetTopLeft();

    // Need a top-level frame to contain the expanded panel
    wxFrame *container = new wxFrame(NULL, wxID_ANY, GetLabel(),
                                     pos, size, wxFRAME_NO_TASKBAR | wxBORDER_NONE);

    m_expanded_panel = new wxRibbonPanel(container, wxID_ANY,
                                         GetLabel(), m_minimised_icon, wxPoint(0, 0), size, m_flags);

    m_expanded_panel->SetArtProvider(m_art);
    m_expanded_panel->m_expanded_dummy = this;

    // Move all children to the new panel.
    // Conceptually it might be simpler to reparent this entire panel to the
    // container and create a new panel to sit in its place while expanded.
    // This approach has a problem though - when the panel is reinserted into
    // its original parent, it'll be at a different position in the child list
    // and thus assume a new position.
    // NB: Children iterators not used as behaviour is not well defined
    // when iterating over a container which is being emptied
    while(!GetChildren().IsEmpty())
    {
        wxWindow *child = GetChildren().GetFirst()->GetData();
        child->Reparent(m_expanded_panel);
        child->Show();
    }

    // Move sizer to new panel
    if(GetSizer())
    {
        wxSizer* sizer = GetSizer();
        SetSizer(NULL, false);
        m_expanded_panel->SetSizer(sizer);
    }

    m_expanded_panel->Realize();
    Refresh();
    container->Show();
    m_expanded_panel->SetFocus();

    return true;
}

void GuiInputBox::Draw()
{
	image.Draw();
	text.Draw();

	if (inputOn)
	{
		iPoint pos = GetScreenPosition();
		App->render->DrawQuad({ pos.x + cursor.x - App->render->camera.x, pos.y - App->render->camera.y, CURSOR_WIDTH, cursor.y }, 255, 255, 255);
	}
}

void dxfv_wxWidgetsFrame::OnOpen(wxCommandEvent& event)
{

    wxFileDialog         openFileDialog(this, _("Open DXF file"), "", "",                       "DXF files (*.dxf)|*.dxf",
                                        wxFD_OPEN|wxFD_FILE_MUST_EXIST);
    if (openFileDialog.ShowModal() == wxID_CANCEL)
        return;     // the user changed idea...

    dxf->LoadFile( std::string(openFileDialog.GetPath().utf8_str()));

    // check for control point splines
    for( dxfv::CSpline& spline : dxf->m_Spline ) {
        if( ! spline.m_FitPointCount) {
                wxMessageBox(
                    "File contains control point splines\n"
                    "These will not be displayed",
                    "WARNING");
                break;
        }
    }

    #ifdef DEMO
    if( dxf->myLoadStatus == dxfv::CDxf::demo ) {
        wxMessageBox( "Demo limit exceeded!", "Sorry");
        exit(1);
    }
    #endif // DEMO
    SetTitle( openFileDialog.GetPath() );

    dxf->myBoundingRectangle.Fit();

    // restart the pan feature
    // this stores the current mouse position
    // if this is not done here, then a false pan operation
    // sometime occurrs on the first display of a newly opened file
    old_pos.x = wxGetMousePosition().x - GetScreenPosition().x;
    old_pos.y = wxGetMousePosition().y - GetScreenPosition().y - 55;

    Refresh();
}

/* restores former dialog size and (on Mac) position */
bool CDlgItemProperties::RestoreState() {
    wxConfigBase*   pConfig = wxConfigBase::Get(FALSE);
    int                iWidth, iHeight;

    wxASSERT(pConfig);
    if (!pConfig) return false;

    pConfig->SetPath(m_strBaseConfigLocation);

    pConfig->Read(wxT("Width"), &iWidth, wxDefaultCoord);
    pConfig->Read(wxT("Height"), &iHeight, wxDefaultCoord);

#ifndef __WXMAC__
    // Set size to saved values or defaults if no saved values
    SetSize(iWidth, iHeight);    
#else
    int                iTop, iLeft;
    
    pConfig->Read(wxT("YPos"), &iTop, wxDefaultCoord);
    pConfig->Read(wxT("XPos"), &iLeft, wxDefaultCoord);
    
    // If either co-ordinate is less then 0 then set it equal to 0 to ensure
    // it displays on the screen.
    if ((iLeft < 0) && (iLeft != wxDefaultCoord)) iLeft = 30;
    if ((iTop < 0) && (iTop != wxDefaultCoord)) iTop = 30;

    // Set size and position to saved values or defaults if no saved values
    SetSize(iLeft, iTop, iWidth, iHeight, wxSIZE_USE_EXISTING);

    // Now make sure window is on screen
    GetScreenPosition(&iLeft, &iTop);
    GetSize(&iWidth, &iHeight);
    
    Rect titleRect = {iTop, iLeft, iTop+22, iLeft+iWidth };
    InsetRect(&titleRect, 5, 5);                // Make sure at least a 5X5 piece visible
    RgnHandle displayRgn = NewRgn();
    CopyRgn(GetGrayRgn(), displayRgn);          // Region encompassing all displays
    Rect menuRect = ((**GetMainDevice())).gdRect;
    menuRect.bottom = GetMBarHeight() + menuRect.top;
    RgnHandle menuRgn = NewRgn();
    RectRgn(menuRgn, &menuRect);                // Region hidden by menu bar
    DiffRgn(displayRgn, menuRgn, displayRgn);   // Subtract menu bar region
    if (!RectInRgn(&titleRect, displayRgn)) {
        iTop = iLeft = 30;
        SetSize(iLeft, iTop, iWidth, iHeight, wxSIZE_USE_EXISTING);
    }
    DisposeRgn(menuRgn);
    DisposeRgn(displayRgn);
#endif

    return true;
}