[weiden] 29300: Send notification if another monitor is selected

Author: weiden
Date: Sat Sep 29 23:12:21 2007
New Revision: 29300

URL: http://svn.reactos.org/svn/reactos?rev=29300&view=rev
Log:
Send notification if another monitor is selected

Modified:
    trunk/reactos/dll/cpl/desk/monslctl.c
    trunk/reactos/dll/cpl/desk/monslctl.h

Modified: trunk/reactos/dll/cpl/desk/monslctl.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/cpl/desk/monslctl.c?rev...
==============================================================================
--- trunk/reactos/dll/cpl/desk/monslctl.c (original)
+++ trunk/reactos/dll/cpl/desk/monslctl.c Sat Sep 29 23:12:21 2007
@@ -43,6 +43,54 @@
     HBRUSH hbrDisabled;
 } MONITORSELWND, *PMONITORSELWND;

+static LRESULT
+MonSelNotify(IN PMONITORSELWND infoPtr,
+             IN UINT code,
+             IN OUT PVOID data)
+{
+    LRESULT Ret = 0;
+
+    if (infoPtr->hNotify != NULL)
+    {
+        LPNMHDR pnmh = (LPNMHDR)data;
+
+        pnmh->hwndFrom = infoPtr->hSelf;
+        pnmh->idFrom = GetWindowLongPtr(infoPtr->hSelf,
+                                        GWLP_ID);
+        pnmh->code = code;
+
+        Ret = SendMessage(infoPtr->hNotify,
+                          WM_NOTIFY,
+                          (WPARAM)pnmh->idFrom,
+                          (LPARAM)pnmh);
+    }
+
+    return Ret;
+}
+
+static LRESULT
+MonSelNotifyMonitor(IN PMONITORSELWND infoPtr,
+                    IN UINT code,
+                    IN INT Index,
+                    IN OUT PMONSL_MONNMHDR pmonnmh)
+{
+    pmonnmh->Index = Index;
+
+    if (Index >= 0)
+    {
+        pmonnmh->MonitorInfo = infoPtr->MonitorInfo[Index];
+    }
+    else
+    {
+        ZeroMemory(&pmonnmh->MonitorInfo,
+                   sizeof(pmonnmh->MonitorInfo));
+    }
+
+    return MonSelNotify(infoPtr,
+                        code,
+                        pmonnmh);
+}
+
 static HFONT
 MonSelChangeFont(IN OUT PMONITORSELWND infoPtr,
                  IN HFONT hFont,
@@ -450,7 +498,8 @@

static BOOL
 MonSelSetCurSelMonitor(IN OUT PMONITORSELWND infoPtr,
-                       IN INT Index)
+                       IN INT Index,
+                       IN BOOL bNotify)
 {
     INT PrevSel;
     BOOL PreventSelect = FALSE;
@@ -464,6 +513,21 @@
                 !(infoPtr->ControlExStyle & MSLM_EX_ALLOWSELECTDISABLED))
             {
                 PreventSelect = TRUE;
+            }
+
+            if (!PreventSelect && bNotify)
+            {
+                MONSL_MONNMMONITORCHANGING nmi;
+
+                nmi.PreviousSelected = infoPtr->SelectedMonitor;
+                nmi.AllowChanging = TRUE;
+
+                MonSelNotifyMonitor(infoPtr,
+                                    MSLN_MONITORCHANGING,
+                                    Index,
+                                    &nmi.hdr);
+
+                PreventSelect = (nmi.AllowChanging == FALSE);
             }

if (!PreventSelect)
@@ -479,6 +543,16 @@

if (infoPtr->SelectedMonitor >= 0)
                     MonSelRepaintSelected(infoPtr);
+
+                if (bNotify)
+                {
+                    MONSL_MONNMHDR nm;
+
+                    MonSelNotifyMonitor(infoPtr,
+                                        MSLN_MONITORCHANGED,
+                                        Index,
+                                        &nm);
+                }
             }
         }

@@ -494,6 +568,7 @@
     infoPtr->SelectionFrame.cx = infoPtr->SelectionFrame.cy = 4;
     infoPtr->Margin.cx = infoPtr->Margin.cy = 20;
     infoPtr->SelectedMonitor = -1;
+    infoPtr->ControlExStyle = MSLM_EX_ALLOWSELECTDISABLED;
     return;
 }

@@ -813,7 +888,8 @@
             if (Index >= 0 || (infoPtr->ControlExStyle & MSLM_EX_ALLOWSELECTNONE))
             {
                 MonSelSetCurSelMonitor(infoPtr,
-                                       Index);
+                                       Index,
+                                       TRUE);
             }

/* fall through */
@@ -965,7 +1041,8 @@
         case MSLM_SETCURSEL:
         {
             Ret = MonSelSetCurSelMonitor(infoPtr,
-                                         (INT)wParam);
+                                         (INT)wParam,
+                                         FALSE);
             break;
         }

Modified: trunk/reactos/dll/cpl/desk/monslctl.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/cpl/desk/monslctl.h?rev...
==============================================================================
--- trunk/reactos/dll/cpl/desk/monslctl.h (original)
+++ trunk/reactos/dll/cpl/desk/monslctl.h Sat Sep 29 23:12:21 2007
@@ -15,6 +15,44 @@
     DWORD Flags; /* MSL_MIF_* */
     LPARAM lParam;
 } MONSL_MONINFO, *PMONSL_MONINFO;
+
+typedef struct _MONSL_MONNMHDR
+{
+    NMHDR hdr;
+    INT Index;
+    /* NOTE: MonitorInfo is only valid if Index >= 0 */
+    MONSL_MONINFO MonitorInfo;
+} MONSL_MONNMHDR, *PMONSL_MONNMHDR;
+
+typedef struct _MONSL_MONNMMONITORCHANGING
+{
+    /* Used with MSLN_MONITORCHANGING */
+    MONSL_MONNMHDR hdr;
+    INT PreviousSelected;
+    BOOL AllowChanging;
+} MONSL_MONNMMONITORCHANGING, *PMONSL_MONNMMONITORCHANGING;
+
+/*
+ * MSLN_MONITORCHANGING
+ *   This notification code is sent through WM_NOTIFY before another monitor
+ *   can be selected. This notification is not sent in response to a
+ *   MSLM_SETCURSEL message.
+ *
+ *   lParam: PMONSL_MONNMMONITORCHANGING
+ *           Change AllowChanging to FALSE to prevent the new monitor to
+ *           be selected.
+ */
+#define MSLN_MONITORCHANGING    101
+
+/*
+ * MSLN_MONITORCHANGED
+ *   This notification code is sent through WM_NOTIFY after a new monitor
+ *   was selected. This notification is not sent in response to a
+ *   MSLM_SETCURSEL message.
+ *
+ *   lParam: PMONSL_MONNMHDR
+ */
+#define MSLN_MONITORCHANGED 101

/*
  * MSLM_SETMONITORSINFO