static VOID
MonSelUpdateExtent(IN OUT PMONITORSELWND infoPtr)
{
DWORD Index;
RECT rcMonitor;
/* NOTE: This routine calculates the extent of all monitor coordinates.
These are not control coordinates! */
if (infoPtr->MonitorsCount > 0)
{
MonSelMonInfoToRect(&infoPtr->MonitorInfo[0],
&infoPtr->rcExtent);
for (Index = 1; Index < infoPtr->MonitorsCount; Index++)
{
MonSelMonInfoToRect(&infoPtr->MonitorInfo[Index],
&rcMonitor);
UnionRect(&infoPtr->rcExtent,
&infoPtr->rcExtent,
&rcMonitor);
}
}
else
{
ZeroMemory(&infoPtr->rcExtent,
sizeof(infoPtr->rcExtent));
}
}
static VOID
MonSelUpdateMonitorsInfo(IN OUT PMONITORSELWND infoPtr,
IN BOOL bRepaint)
{
RECT rcExtSurface, rcExtDisplay;
DWORD Index;
/* Recalculate rcExtent */
MonSelUpdateExtent(infoPtr);
infoPtr-> CanDisplay = infoPtr->MonitorsCount != 0 &&
(infoPtr->ClientSize.cx > (2 * (infoPtr->Margin.cx + infoPtr->SelectionFrame.cx))) &&
(infoPtr->ClientSize.cy > (2 * (infoPtr->Margin.cy + infoPtr->SelectionFrame.cy)));
if (infoPtr->CanDisplay)
{
/* Calculate the rectangle on the control in which may be painted */
rcExtSurface.left = infoPtr->Margin.cx;
rcExtSurface.top = infoPtr->Margin.cy;
rcExtSurface.right = rcExtSurface.left + infoPtr->ClientSize.cx - (2 * infoPtr->Margin.cx);
rcExtSurface.bottom = rcExtSurface.top + infoPtr->ClientSize.cy - (2 * infoPtr->Margin.cy);
/* Calculate the rectangle on the control that is actually painted on */
rcExtDisplay.left = rcExtDisplay.top = 0;
rcExtDisplay.right = infoPtr->rcExtent.right - infoPtr->rcExtent.left;
rcExtDisplay.bottom = infoPtr->rcExtent.bottom - infoPtr->rcExtent.top;
ScaleRectSizeFit(&rcExtSurface,
&rcExtDisplay);
infoPtr->rcOldMonitors = infoPtr->rcMonitors;
infoPtr->rcMonitors = rcExtDisplay;
/* Now that we know in which area all monitors are located,
calculate the monitors selection rectangles on the screen */
for (Index = 0; Index < infoPtr->MonitorsCount; Index++)
{
MonSelMonInfoToRect(&infoPtr->MonitorInfo[Index],
&rcExtDisplay);
MonSelScaleRectRelative(&infoPtr->rcExtent,
&rcExtDisplay,
&infoPtr->rcMonitors,
&infoPtr->Monitors[Index].rc);
}
MonSelResetMonitors(infoPtr);
if (bRepaint)
MonSelRepaint(infoPtr);
}
else if (bRepaint)
{
InvalidateRect(infoPtr->hSelf,
NULL,
TRUE);
}
}