void UCanvasPanelSlot::SynchronizeProperties()
{
SetOffsets(LayoutData.Offsets);
SetAnchors(LayoutData.Anchors);
SetAlignment(LayoutData.Alignment);
SetAutoSize(bAutoSize);
SetZOrder(ZOrder);
}
void CPipProp::Sizer::Init(RECT& rcBound, RECT& rcVid, RECT& rcTarget)
{
_ASSERTE((rcVid.left == 0) && (rcVid.top == 0));
CopyRect(&m_BoundingRect, &rcBound);
float fWidth = (float)(m_BoundingRect.right - m_BoundingRect.left);
float fHeight = (float)(m_BoundingRect.bottom - m_BoundingRect.top);
float scaleX = fWidth / rcVid.right,
scaleY = fHeight / rcVid.bottom;
// Scale
int x1 = (int)(scaleX * rcTarget.left), y1 = (int)(scaleY * rcTarget.top),
x2 = (int)(scaleX * rcTarget.right), y2 = (int)(scaleY * rcTarget.bottom);
// Normalize to the bounding rectangle
SetRect(this, x1 + rcBound.left, y1 + rcBound.top,
x2 + rcBound.left, y2 + rcBound.top);
SetAnchors();
SetRegion();
}
BOOL CPipProp::Sizer::TestMouseMove(int x, int y)
{
// If grabbing right now, resize the Sizer rectangle
// We keep a minimum 2-pixel distance between opposite rectangle
// sides. Otherwise it doesn't look like a rectangle any more.)
if (m_bGrabbed)
{
SetRegion();
switch (m_iGrabbedAnchor)
{
case 0:
top = min(y, bottom - 2);
left = min(x, right - 2);
break;
case 1:
top = min(y, bottom - 2);
right = max(x, left + 2);
break;
case 2:
bottom = max(y, top + 2);
right = max(x, left + 2);
break;
case 3:
bottom = max(y, top + 2);
left = min(x, right - 2);
break;
default:
_ASSERTE(FALSE);
break;
}
// Trim to the bounding rect
IntersectRect(this, this, &m_BoundingRect);
SetAnchors();
return TRUE;
}
// If not grabbing and not selected, nothing to do.
if (!m_bSelected) {
return FALSE;
}
// If selected, look for hot zone. Is the mouse hovering over an anchor?
bool bInHotZone = false;
POINT pt = { x, y };
for (int i = 0; i < 4; i++)
{
if (PtInRect(&m_Anchor[i], pt))
{
bInHotZone = true;
m_iGrabbedAnchor = i;
break;
}
}
// Change the cursor to a diagonal arrow, to indicate "resizability"
if (bInHotZone)
{
HCURSOR hCursor;
if (m_iGrabbedAnchor == 0 || m_iGrabbedAnchor == 2)
{
hCursor = LoadCursor(0, IDC_SIZENWSE);
}
else
{
hCursor = LoadCursor(0, IDC_SIZENESW);
}
SetCursor(hCursor);
}
else if (m_bInHotZone)
{
// We *were* in a hot zone, now we're not, so reset the cursor.
SetCursor(LoadCursor(0, IDC_ARROW));
}
m_bInHotZone = bInHotZone;
return FALSE;
}
