bool IrisWind::SetActiveScaling (long lZoom)
{
ObjContainer OC (0, 0, 0, 0);
ObjContainer oldOC = DBO().GetExtend(); // alten Ausschnitt merken
bool fResult = false;
Rectangle rcC (0, 0, 0, 0);
for (int i = 0; i < 2; i++) {
rcC = CanvasRect();
Rectangle rc;
if (NULL != m_pDRO) {
rc = ((DragRectangleObject *)m_pDRO) -> GetRect();
// Koordinaten kippen
CoOrd tmpC = CoOrd(rc.Bottom() - rc.Top());
rc.Bottom() = CoOrd(rc.Top() - tmpC);
} else
rc = rcC;
fResult = DBO().SetActiveScaling (lZoom, rc, rcC, OC);
if (!fResult) break;
// neuen Ausschnitt einstellen
SetExtend (OC, lZoom);
// bei Bedarf ScrollBars einblenden und initialisieren
if (!InitWndScrollBars())
break; // einmal reicht, wenn Scrollbars nicht geändert wurden
}
// wenn Erfolgreich, dann alles neu einstellen
if (fResult) {
DELETE_OBJ (m_pDRO);
// Übersichtsfenster bedienen
if (OverViewCFlag && pOverView)
pOverView -> SetActVP (CanvasRect());
actClip.Push (oldOC);
// neu zeichnen
LegendToRepaint = true;
m_fRePaintFlag = true;
RePaint();
}
return fResult;
}
void FSceneViewport::OnDrawViewport( const FGeometry& AllottedGeometry, const FSlateRect& MyClippingRect, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled )
{
// Switch to the viewport clients world before resizing
FScopedConditionalWorldSwitcher WorldSwitcher( ViewportClient );
/** Check to see if the viewport should be resized */
FIntPoint DrawSize = FIntPoint( FMath::RoundToInt( AllottedGeometry.GetDrawSize().X ), FMath::RoundToInt( AllottedGeometry.GetDrawSize().Y ) );
if( GetSizeXY() != DrawSize )
{
TSharedPtr<SWindow> Window = FSlateApplication::Get().FindWidgetWindow( ViewportWidget.Pin().ToSharedRef() );
check(Window.IsValid());
ResizeViewport(FMath::Max(0, DrawSize.X), FMath::Max(0, DrawSize.Y), Window->GetWindowMode(), 0, 0);
}
// Cannot pass negative canvas positions
float CanvasMinX = FMath::Max(0.0f, AllottedGeometry.AbsolutePosition.X);
float CanvasMinY = FMath::Max(0.0f, AllottedGeometry.AbsolutePosition.Y);
FIntRect CanvasRect(
FMath::RoundToInt( CanvasMinX ),
FMath::RoundToInt( CanvasMinY ),
FMath::RoundToInt( CanvasMinX + AllottedGeometry.Size.X * AllottedGeometry.Scale ),
FMath::RoundToInt( CanvasMinY + AllottedGeometry.Size.Y * AllottedGeometry.Scale ) );
DebugCanvasDrawer->BeginRenderingCanvas( CanvasRect );
// Draw above everything else
uint32 MaxLayer = MAX_uint32;
FSlateDrawElement::MakeCustom( OutDrawElements, MAX_uint32, DebugCanvasDrawer );
}
// Anzeige des aktuellen Maßstabes --------------------------------------------
bool IrisWind :: SetMasstab (Rectangle R)
{
// wenn Rechteck entartet ist, dann nichts ändern
if (R.Right() == R.Left()) return false;
Rectangle CRc = CanvasRect();
if (CRc.Left() == CRc.Right()) return false; // Icon
// Koordinaten in DB-Koordinaten umsetzen
CoordTrans *pCT = DBO().pCT();
TX_ASSERT(NULL != pCT);
if (NULL == pCT) return false;
Point ptLO = R.UpperLeft();
Punkt LO = DCtoOC (ptLO); // Device --> Objekt
Point ptRU = R.LowerRight();
Punkt RU = DCtoOC (ptRU);
#if defined(_KOORD_ISDOUBLE)
DoublePair P1 (LO.GetX(), LO.GetY());
DoublePair P2 (RU.GetX(), LO.GetY()); // über X-Koordinate berechnen
#else
double XLO, XRU, YLO, YRU;
pCT() -> UnScale (LO, &XLO, &YLO);
pCT() -> UnScale (RU, &XRU, &YRU);
DoublePair P1 (XLO, YLO);
DoublePair P2 (XRU, YLO); // über X-Koordinate berechnen
#endif // _KOORD_ISDOUBLE
double dX = 1.0;
if (pCT -> hasDistEx()) {
double dY = 1.0;
pCT -> CoordTransDistanceEx (&P1, &P2, dX, dY);
} else
dX = pCT -> CoordTransDistance (&P1, &P2);
DoublePair dimD;
Dimension DotsPerMM (GetDotsPerMM (NULL, &dimD));
long M = (long)((fabs(dX) * 1000.0 * dimD.Width()) / ((double)(CRc.Right()-CRc.Left())));
// Maßstab muß positiv sein
if (M < 0L)
M = -M;
if (0 != m_lFakeZoom)
DEXN_ScalingChanged (m_lFakeZoom);
else
DEXN_ScalingChanged (M);
return true;
}
void CCheckTreeView::HandleCheckMark(Point point, UINT uiMsg)
{
Rectangle rc = CanvasRect();
CoOrd dY = rc.Top()-rc.Bottom();
TV_HITTESTINFO ht;
ht.pt.x = point.X();
ht.pt.y = dY-point.Y();
HTREEITEM hNewTarget = HitTest (&ht);
if (hNewTarget && (ht.flags & TVHT_ONITEMSTATEICON)) {
UINT uiState = ChangingCheckState (hNewTarget, uiMsg);
if (TV_CHECK_NOCHANGE != uiState) {
if (TV_CHECK_NOMARK != uiState)
SetCheckState (hNewTarget, uiState);
else
ToggleCheckMark (hNewTarget);
NotifyChecked (hNewTarget, uiMsg, GetCheckState(hNewTarget));
}
}
}
