/* PRIVATE FUNCTIONS **********************************************************/
-#ifndef MIN
-# define MIN(a, b) ((a) < (b) ? (a) : (b))
-#endif
-#ifndef MAX
-# define MAX(a, b) ((a) > (b) ? (a) : (b))
-#endif
-#ifndef ABS
-# define ABS(a) ((a) < (0) ? (-(a)) : (a))
-#endif
-
/* IntCreateMonitorObject
*
* Creates a MONITOR
{
PMONITOR Monitor, NearestMonitor = NULL, PrimaryMonitor = NULL;
UINT iCount = 0;
- LONG iNearestDistanceX = 0x7fffffff, iNearestDistanceY = 0x7fffffff;
+ ULONG iNearestDistance = 0xffffffff;
- /* find monitors which intersect the rectangle */
+ /* Find monitors which intersect the rectangle */
for (Monitor = gMonitorList; Monitor != NULL; Monitor = Monitor->Next)
{
RECTL MonitorRect, IntersectionRect;
PrimaryMonitor = Monitor;
}
- if (pRect != NULL)
+ /* Check if a rect is given */
+ if (pRect == NULL)
{
- BOOL intersects = TRUE;
+ /* No rect given, so use the full monitor rect */
+ IntersectionRect = MonitorRect;
+ }
- /* check if the rect intersects the monitor */
- if ((pRect->right < MonitorRect.left) || (pRect->left > MonitorRect.right) ||
- (pRect->bottom < MonitorRect.top) || (pRect->top > MonitorRect.bottom))
+ /* We have a rect, calculate intersection */
+ else if (!RECTL_bIntersectRect(&IntersectionRect, &MonitorRect, pRect))
+ {
+ /* Rects did not intersect */
+ if (flags == MONITOR_DEFAULTTONEAREST)
{
- intersects = FALSE;
- }
+ ULONG cx, cy, iDistance;
- if (flags == MONITOR_DEFAULTTONEAREST && !intersects)
- {
- INT distanceX, distanceY;
+ /* Get x and y distance */
+ cx = min(abs(MonitorRect.left - pRect->right),
+ abs(pRect->left - MonitorRect.right));
+ cy = min(abs(MonitorRect.top - pRect->bottom),
+ abs(pRect->top - MonitorRect.bottom));
- distanceX = MIN(ABS(MonitorRect.left - pRect->right),
- ABS(pRect->left - MonitorRect.right));
- distanceY = MIN(ABS(MonitorRect.top - pRect->bottom),
- ABS(pRect->top - MonitorRect.bottom));
+ /* Calculate distance square */
+ iDistance = cx * cx + cy * cy;
- if (((distanceX < iNearestDistanceX) && (distanceY <= iNearestDistanceY)) ||
- ((distanceX <= iNearestDistanceX) && (distanceY < iNearestDistanceY)))
+ /* Check if this is the new nearest monitor */
+ if (iDistance < iNearestDistance)
{
- iNearestDistanceX = distanceX;
- iNearestDistanceY = distanceY;
+ iNearestDistance = iDistance;
NearestMonitor = Monitor;
}
}
- if (!intersects)
- continue;
-
- /* calculate intersection */
- IntersectionRect.left = MAX(MonitorRect.left, pRect->left);
- IntersectionRect.top = MAX(MonitorRect.top, pRect->top);
- IntersectionRect.right = MIN(MonitorRect.right, pRect->right);
- IntersectionRect.bottom = MIN(MonitorRect.bottom, pRect->bottom);
- }
- else
- {
- IntersectionRect = MonitorRect;
+ continue;
}
+ /* Check if there's space in the buffer */
if (iCount < listSize)
{
if (hMonitorList != NULL)
if (monitorRectList != NULL)
monitorRectList[iCount] = IntersectionRect;
}
+
+ /* Increase count of found monitors */
iCount++;
}
- if (iCount == 0 && flags == MONITOR_DEFAULTTONEAREST)
+ /* Found nothing intersecting? */
+ if (iCount == 0)
{
- if (iCount < listSize)
+ /* Check if we shall default to the nearest monitor */
+ if (flags == MONITOR_DEFAULTTONEAREST && NearestMonitor)
{
- if (hMonitorList != NULL)
+ if (hMonitorList && listSize > 0)
hMonitorList[iCount] = UserHMGetHandle(NearestMonitor);
+ iCount++;
}
- iCount++;
- }
- else if (iCount == 0 && flags == MONITOR_DEFAULTTOPRIMARY)
- {
- if (iCount < listSize)
+ /* Check if we shall default to the primary monitor */
+ else if (flags == MONITOR_DEFAULTTOPRIMARY && PrimaryMonitor)
{
- if (hMonitorList != NULL)
+ if (hMonitorList != NULL && listSize > 0)
hMonitorList[iCount] = UserHMGetHandle(PrimaryMonitor);
+ iCount++;
}
- iCount++;
}
+
return iCount;
}
RECTL InRect;
HMONITOR hMonitor = NULL;
- /* fill inRect */
- InRect.left = InRect.right = point.x;
- InRect.top = InRect.bottom = point.y;
+ /* fill inRect (bottom-right exclusive) */
+ InRect.left = point.x;
+ InRect.right = point.x + 1;
+ InRect.top = point.y;
+ InRect.bottom = point.y + 1;
/* find intersecting monitor */
- NumMonitors = IntGetMonitorsFromRect(&InRect, &hMonitor, NULL, 1, 0);
+ NumMonitors = IntGetMonitorsFromRect(&InRect, &hMonitor, NULL, 1, dwFlags);
if (NumMonitors < 0)
{
return (HMONITOR)NULL;
}
- if (hMonitor == NULL)
- {
- if (dwFlags == MONITOR_DEFAULTTOPRIMARY)
- {
- PMONITOR MonitorObj = IntGetPrimaryMonitor();
- if (MonitorObj)
- hMonitor = UserHMGetHandle(MonitorObj);
- }
- else if (dwFlags == MONITOR_DEFAULTTONEAREST)
- {
- NumMonitors = IntGetMonitorsFromRect(&InRect, &hMonitor, NULL,
- 1, MONITOR_DEFAULTTONEAREST);
- /*ASSERT( (numMonitors > 0) && (hMonitor != NULL) );*/
- }
- /* else flag is DEFAULTTONULL */
- }
-
return hMonitor;
}
IN LPCRECTL pRect,
IN DWORD dwFlags)
{
- INT numMonitors, iLargestArea = -1, i;
+ ULONG numMonitors, iLargestArea = 0, i;
PRECTL rectList;
HMONITOR *hMonitorList;
HMONITOR hMonitor = NULL;
}
/* find intersecting monitors */
- numMonitors = IntGetMonitorsFromRect(&rect, NULL, NULL, 0, 0);
- if (numMonitors < 0)
+ numMonitors = IntGetMonitorsFromRect(&rect, &hMonitor, NULL, 1, dwFlags);
+ if (numMonitors <= 1)
{
- return (HMONITOR)NULL;
+ return hMonitor;
}
- if (numMonitors == 0)
- {
- if (dwFlags == MONITOR_DEFAULTTOPRIMARY)
- {
- PMONITOR monitorObj = IntGetPrimaryMonitor();
- if (monitorObj)
- return UserHMGetHandle(monitorObj);
- }
- else if (dwFlags == MONITOR_DEFAULTTONEAREST)
- {
- numMonitors = IntGetMonitorsFromRect(&rect, &hMonitor, NULL,
- 1, MONITOR_DEFAULTTONEAREST);
- if (numMonitors <= 0)
- {
- /* error? */
- return (HMONITOR)NULL;
- }
-
- if (numMonitors > 0)
- return hMonitor;
- }
- /* else flag is DEFAULTTONULL */
- return (HMONITOR)NULL;
- }
-
- hMonitorList = ExAllocatePoolWithTag(PagedPool, sizeof (HMONITOR) * numMonitors, USERTAG_MONITORRECTS);
+ hMonitorList = ExAllocatePoolWithTag(PagedPool,
+ sizeof(HMONITOR) * numMonitors,
+ USERTAG_MONITORRECTS);
if (hMonitorList == NULL)
{
/* FIXME: SetLastWin32Error? */
return (HMONITOR)NULL;
}
- rectList = ExAllocatePoolWithTag(PagedPool, sizeof (RECT) * numMonitors, USERTAG_MONITORRECTS);
+
+ rectList = ExAllocatePoolWithTag(PagedPool,
+ sizeof(RECT) * numMonitors,
+ USERTAG_MONITORRECTS);
if (rectList == NULL)
{
ExFreePoolWithTag(hMonitorList, USERTAG_MONITORRECTS);
/* get intersecting monitors */
numMonitors = IntGetMonitorsFromRect(&rect, hMonitorList, rectList,
numMonitors, 0);
- if (numMonitors <= 0)
+ if (numMonitors == 0)
{
ExFreePoolWithTag(hMonitorList, USERTAG_MONITORRECTS);
ExFreePoolWithTag(rectList, USERTAG_MONITORRECTS);
/* find largest intersection */
for (i = 0; i < numMonitors; i++)
{
- INT area = (rectList[i].right - rectList[i].left) *
- (rectList[i].bottom - rectList[i].top);
- if (area > iLargestArea)
+ ULONG area = (rectList[i].right - rectList[i].left) *
+ (rectList[i].bottom - rectList[i].top);
+ if (area >= iLargestArea)
{
hMonitor = hMonitorList[i];
}
projects / reactos.git / blobdiff