[EXPLORER]: Fix most problems with the size of the taskbar. (Most problems when run in windows. Running on ros still isn't perfect.)

- CTaskSwitchWnd: Use the height of the start button as minimum height in horizontal mode.
- CTrayClockWnd: Actually process WM_THEMECHANGED message.
- CTaskSwitchWnd: Use SM_CYSIZE as the height of the buttons of the toolbar.
- CStartButton: Simplify calculating the minimum size of the button.
- CTrayWindow: Don't use IsThemeActive. Checking if OpenThemeData returned non null is enough.

svn path=/trunk/; revision=74231

reactos/base/shell/explorer/precomp.h

@@ -233,7 +233,7 @@ ShowCustomizeNotifyIcons(HINSTANCE, HWND);
  */
 
 extern const GUID CLSID_ITaskBand;  /* Internal Task Band CLSID */
-HRESULT CTaskBand_CreateInstance(IN ITrayWindow *Tray,  REFIID riid, void **ppv);
+HRESULT CTaskBand_CreateInstance(IN ITrayWindow *Tray, HWND hWndStartButton, REFIID riid, void **ppv);
 
 /*
  * tbsite.cpp

reactos/base/shell/explorer/taskband.cpp

@@ -40,6 +40,7 @@ class CTaskBand :
     CComPtr<IUnknown> m_Site;
 
     HWND m_hWnd;
+    HWND m_hWndStartButton;
     DWORD m_BandID;
 
 public:
@@ -124,7 +125,10 @@ public:
             }
             else
             {
-                pdbi->ptMinSize.y = GetSystemMetrics(SM_CYSIZE) + (2 * GetSystemMetrics(SM_CYEDGE)); /* FIXME: Query */
+                /* When the band is horizontal its minimum height is the height of the start button */
+                RECT rcButton;
+                GetWindowRect(m_hWndStartButton, &rcButton);
+                pdbi->ptMinSize.y = rcButton.bottom - rcButton.top;
                 pdbi->ptIntegral.y = pdbi->ptMinSize.y + (3 * GetSystemMetrics(SM_CYEDGE) / 2); /* FIXME: Query metrics */
                 /* We're not going to allow task bands where not even the minimum button size fits into the band */
                 pdbi->ptMinSize.x = pdbi->ptIntegral.y;
@@ -327,10 +331,11 @@ public:
 
     /*****************************************************************************/
 
-    HRESULT STDMETHODCALLTYPE Initialize(IN OUT ITrayWindow *tray)
+    HRESULT STDMETHODCALLTYPE Initialize(IN OUT ITrayWindow *tray, HWND hWndStartButton)
     {
         m_Tray = tray;
         m_BandID = (DWORD) -1;
+        m_hWndStartButton = hWndStartButton;
         return S_OK;
     }
 
@@ -348,7 +353,7 @@ public:
     END_COM_MAP()
 };
 
-HRESULT CTaskBand_CreateInstance(IN ITrayWindow *Tray,  REFIID riid, void **ppv)
+HRESULT CTaskBand_CreateInstance(IN ITrayWindow *Tray, HWND hWndStartButton, REFIID riid, void **ppv)
 {
-    return ShellObjectCreatorInit<CTaskBand>(Tray, riid, ppv);
+    return ShellObjectCreatorInit<CTaskBand>(Tray, hWndStartButton, riid, ppv);
 }

reactos/base/shell/explorer/taskswnd.cpp

@@ -1146,7 +1146,7 @@ public:
         BOOL Horizontal;
 
         int cx = GetSystemMetrics(SM_CXMINIMIZED);
-        int cy = m_ButtonSize.cy = GetSystemMetrics(SM_CYSIZE) + (2 * GetSystemMetrics(SM_CYEDGE));
+        int cy = m_ButtonSize.cy = GetSystemMetrics(SM_CYSIZE);
         m_TaskBar.SetButtonSize(cx, cy);
 
         if (GetClientRect(&rcClient) && !IsRectEmpty(&rcClient))

reactos/base/shell/explorer/trayntfy.cpp

@@ -1206,6 +1206,7 @@ public:
         MESSAGE_HANDLER(WM_SIZE, OnSize)
         MESSAGE_HANDLER(WM_PAINT, OnPaint)
         MESSAGE_HANDLER(WM_PRINTCLIENT, OnPaint)
+        MESSAGE_HANDLER(WM_THEMECHANGED, OnThemeChanged)
         MESSAGE_HANDLER(WM_TIMER, OnTimer)
         MESSAGE_HANDLER(WM_NCHITTEST, OnNcHitTest)
         MESSAGE_HANDLER(WM_SETFONT, OnSetFont)
@@ -1229,10 +1230,7 @@ public:
         Create(hWndParent, 0, NULL, dwStyle);
 
         if (m_hWnd != NULL)
-        {
             SetWindowTheme(m_hWnd, L"TrayNotify", NULL);
-            OnThemeChanged();
-        }
 
         return m_hWnd;
 

reactos/base/shell/explorer/traywnd.cpp

@@ -101,10 +101,7 @@ public:
             Size.cx = 2 * GetSystemMetrics(SM_CXEDGE) + GetSystemMetrics(SM_CYCAPTION) * 3;
         }
 
-        if (GetWindowTheme(m_hWnd))
-            Size.cy = max(Size.cy, GetSystemMetrics(SM_CYCAPTION));
-        else
-            Size.cy = max(Size.cy, GetSystemMetrics(SM_CYSIZE) + (2 * GetSystemMetrics(SM_CYEDGE)));
+        Size.cy = max(Size.cy, GetSystemMetrics(SM_CYCAPTION));
 
         /* Save the size of the start button */
         m_Size = Size;
@@ -732,6 +729,10 @@ public:
 
     void UpdateFonts()
     {
+        /* There is nothing to do if themes are not enabled */
+        if (m_Theme)
+            return;
+
         m_StartButton.UpdateFont();
 
         NONCLIENTMETRICS ncm = {sizeof(ncm)};
@@ -902,7 +903,7 @@ GetPrimaryRect:
 
         *pRect = *pScreen;
 
-        if(!IsThemeActive())
+        if(!m_Theme)
         {
             /* Move the border outside of the screen */
             InflateRect(pRect,
@@ -1407,7 +1408,7 @@ ChangePos:
                entire window size, not just the client size. However, we
                use a thinner border than a standard thick border, so that
                the start button and bands are not stuck to the screen border. */
-            if(!IsThemeActive())
+            if(!m_Theme)
             {
                 sr.Size.cx = StartBtnSize.cx + (2 * (EdgeSize.cx + DlgFrameSize.cx));
                 sr.Size.cy = StartBtnSize.cy + (2 * (EdgeSize.cy + DlgFrameSize.cy));
@@ -1445,7 +1446,7 @@ ChangePos:
            loaded from the registry are at least. The windows explorer behaves
            the same way, it allows the user to save a zero width vertical tray
            window, but not a zero height horizontal tray window. */
-        if(!IsThemeActive())
+        if(!m_Theme)
         {
             WndSize.cx = 2 * (EdgeSize.cx + DlgFrameSize.cx);
             WndSize.cy = StartBtnSize.cy + (2 * (EdgeSize.cy + DlgFrameSize.cy));
@@ -1970,7 +1971,7 @@ ChangePos:
             dwExStyle |= WS_EX_TOPMOST;
 
         DWORD dwStyle = WS_POPUP | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
-        if(!IsThemeActive())
+        if(!m_Theme)
         {
             dwStyle |= WS_THICKFRAME | WS_BORDER;
         }
@@ -2098,7 +2099,7 @@ ChangePos:
         m_StartMenuPopup = CreateStartMenu(this, &m_StartMenuBand, hbmBanner, 0);
 
         /* Create the task band */
-        hRet = CTaskBand_CreateInstance(this, IID_PPV_ARG(IDeskBand, &m_TaskBand));
+        hRet = CTaskBand_CreateInstance(this, m_StartButton.m_hWnd, IID_PPV_ARG(IDeskBand, &m_TaskBand));
         if (FAILED_UNEXPECTEDLY(hRet))
             return FALSE;
 
@@ -2153,10 +2154,7 @@ ChangePos:
         if (m_Theme)
             CloseThemeData(m_Theme);
 
-        if (IsThemeActive())
-            m_Theme = OpenThemeData(m_hWnd, L"TaskBar");
-        else
-            m_Theme = NULL;
+        m_Theme = OpenThemeData(m_hWnd, L"TaskBar");
 
         if (m_Theme)
         {
@@ -2690,7 +2688,7 @@ HandleTrayContextMenu:
     {
         RECT *rc = NULL;
         /* Ignore WM_NCCALCSIZE if we are not themed or locked */
-        if(!IsThemeActive() || Locked)
+        if(!m_Theme || Locked)
         {
             bHandled = FALSE;
             return 0;