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reactos/base/shell/explorer/trayntfy.cpp
Giannis Adamopoulos d11e7af5f2 [EXPLORER] Center the text of the clock 
CTrayClockWnd: Fix the calculation that centered the text of the clock.
CTrayNotifyWnd: Restore the 1 pixel margin between the clock and the pager.
2018-01-29 21:50:33 +02:00

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/*
* ReactOS Explorer
*
* Copyright 2006 - 2007 Thomas Weidenmueller <w3seek@reactos.org>
* Copyright 2018 Ged Murphy <gedmurphy@reactos.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "precomp.h"
/*
* TrayNotifyWnd
*/
static const WCHAR szTrayNotifyWndClass [] = TEXT("TrayNotifyWnd");
#define TRAY_NOTIFY_WND_SPACING_X 1
#define TRAY_NOTIFY_WND_SPACING_Y 1
class CTrayNotifyWnd :
public CComCoClass<CTrayNotifyWnd>,
public CComObjectRootEx<CComMultiThreadModelNoCS>,
public CWindowImpl < CTrayNotifyWnd, CWindow, CControlWinTraits >,
public IOleWindow
{
CComPtr<IUnknown> m_clock;
CComPtr<IUnknown> m_pager;
HWND m_hwndClock;
HWND m_hwndPager;
HTHEME TrayTheme;
SIZE szTrayClockMin;
SIZE szTrayNotify;
MARGINS ContentMargin;
BOOL IsHorizontal;
public:
CTrayNotifyWnd() :
m_hwndClock(NULL),
m_hwndPager(NULL),
TrayTheme(NULL),
IsHorizontal(FALSE)
{
ZeroMemory(&szTrayClockMin, sizeof(szTrayClockMin));
ZeroMemory(&szTrayNotify, sizeof(szTrayNotify));
ZeroMemory(&ContentMargin, sizeof(ContentMargin));
}
virtual ~CTrayNotifyWnd() { }
LRESULT OnThemeChanged()
{
if (TrayTheme)
CloseThemeData(TrayTheme);
if (IsThemeActive())
TrayTheme = OpenThemeData(m_hWnd, L"TrayNotify");
else
TrayTheme = NULL;
if (TrayTheme)
{
SetWindowExStyle(m_hWnd, WS_EX_STATICEDGE, 0);
GetThemeMargins(TrayTheme,
NULL,
TNP_BACKGROUND,
0,
TMT_CONTENTMARGINS,
NULL,
&ContentMargin);
}
else
{
SetWindowExStyle(m_hWnd, WS_EX_STATICEDGE, WS_EX_STATICEDGE);
ContentMargin.cxLeftWidth = 2;
ContentMargin.cxRightWidth = 2;
ContentMargin.cyTopHeight = 2;
ContentMargin.cyBottomHeight = 2;
}
return TRUE;
}
LRESULT OnThemeChanged(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
return OnThemeChanged();
}
LRESULT OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
HRESULT hr;
hr = CTrayClockWnd_CreateInstance(m_hWnd, IID_PPV_ARG(IUnknown, &m_clock));
if (FAILED_UNEXPECTEDLY(hr))
return FALSE;
hr = IUnknown_GetWindow(m_clock, &m_hwndClock);
if (FAILED_UNEXPECTEDLY(hr))
return FALSE;
hr = CSysPagerWnd_CreateInstance(m_hWnd, IID_PPV_ARG(IUnknown, &m_pager));
if (FAILED_UNEXPECTEDLY(hr))
return FALSE;
hr = IUnknown_GetWindow(m_pager, &m_hwndPager);
if (FAILED_UNEXPECTEDLY(hr))
return FALSE;
return TRUE;
}
BOOL GetMinimumSize(IN OUT PSIZE pSize)
{
SIZE szClock = { 0, 0 };
SIZE szTray = { 0, 0 };
if (!g_TaskbarSettings.sr.HideClock)
{
if (IsHorizontal)
{
szClock.cy = pSize->cy - 2 * TRAY_NOTIFY_WND_SPACING_Y;
if (szClock.cy <= 0)
goto NoClock;
}
else
{
szClock.cx = pSize->cx - 2 * TRAY_NOTIFY_WND_SPACING_X;
if (szClock.cx <= 0)
goto NoClock;
}
::SendMessage(m_hwndClock, TNWM_GETMINIMUMSIZE, (WPARAM) IsHorizontal, (LPARAM) &szClock);
szTrayClockMin = szClock;
}
else
NoClock:
szTrayClockMin = szClock;
if (IsHorizontal)
{
szTray.cy = pSize->cy - 2 * TRAY_NOTIFY_WND_SPACING_Y;
}
else
{
szTray.cx = pSize->cx - 2 * TRAY_NOTIFY_WND_SPACING_X;
}
::SendMessage(m_hwndPager, TNWM_GETMINIMUMSIZE, (WPARAM) IsHorizontal, (LPARAM) &szTray);
szTrayNotify = szTray;
if (IsHorizontal)
{
pSize->cx = 2 * TRAY_NOTIFY_WND_SPACING_X;
if (!g_TaskbarSettings.sr.HideClock)
pSize->cx += TRAY_NOTIFY_WND_SPACING_X + szTrayClockMin.cx;
pSize->cx += szTray.cx;
pSize->cx += ContentMargin.cxLeftWidth + ContentMargin.cxRightWidth;
}
else
{
pSize->cy = 2 * TRAY_NOTIFY_WND_SPACING_Y;
if (!g_TaskbarSettings.sr.HideClock)
pSize->cy += TRAY_NOTIFY_WND_SPACING_Y + szTrayClockMin.cy;
pSize->cy += szTray.cy;
pSize->cy += ContentMargin.cyTopHeight + ContentMargin.cyBottomHeight;
}
return TRUE;
}
VOID Size(IN const SIZE *pszClient)
{
if (!g_TaskbarSettings.sr.HideClock)
{
POINT ptClock;
SIZE szClock;
if (IsHorizontal)
{
ptClock.x = pszClient->cx - szTrayClockMin.cx - ContentMargin.cxRightWidth;
ptClock.y = ContentMargin.cyTopHeight;
szClock.cx = szTrayClockMin.cx;
szClock.cy = pszClient->cy - ContentMargin.cyTopHeight - ContentMargin.cyBottomHeight;
}
else
{
ptClock.x = ContentMargin.cxLeftWidth;
ptClock.y = pszClient->cy - szTrayClockMin.cy;
szClock.cx = pszClient->cx - ContentMargin.cxLeftWidth - ContentMargin.cxRightWidth;
szClock.cy = szTrayClockMin.cy;
}
::SetWindowPos(m_hwndClock,
NULL,
ptClock.x,
ptClock.y,
szClock.cx,
szClock.cy,
SWP_NOZORDER);
}
POINT ptPager;
if (IsHorizontal)
{
ptPager.x = ContentMargin.cxLeftWidth;
ptPager.y = (pszClient->cy - szTrayNotify.cy)/2;
}
else
{
ptPager.x = (pszClient->cx - szTrayNotify.cx)/2;
ptPager.y = ContentMargin.cyTopHeight;
}
::SetWindowPos(m_hwndPager,
NULL,
ptPager.x,
ptPager.y,
szTrayNotify.cx,
szTrayNotify.cy,
SWP_NOZORDER);
}
LRESULT OnEraseBackground(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
HDC hdc = (HDC) wParam;
if (!TrayTheme)
{
bHandled = FALSE;
return 0;
}
RECT rect;
GetClientRect(&rect);
if (IsThemeBackgroundPartiallyTransparent(TrayTheme, TNP_BACKGROUND, 0))
DrawThemeParentBackground(m_hWnd, hdc, &rect);
DrawThemeBackground(TrayTheme, hdc, TNP_BACKGROUND, 0, &rect, 0);
return TRUE;
}
LRESULT OnGetMinimumSize(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
BOOL Horizontal = (BOOL) wParam;
if (Horizontal != IsHorizontal)
{
IsHorizontal = Horizontal;
if (IsHorizontal)
SetWindowTheme(m_hWnd, L"TrayNotifyHoriz", NULL);
else
SetWindowTheme(m_hWnd, L"TrayNotifyVert", NULL);
}
return (LRESULT) GetMinimumSize((PSIZE) lParam);
}
LRESULT OnSize(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
SIZE szClient;
szClient.cx = LOWORD(lParam);
szClient.cy = HIWORD(lParam);
Size(&szClient);
return TRUE;
}
LRESULT OnNcHitTest(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
return HTTRANSPARENT;
}
LRESULT OnCtxMenu(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
bHandled = TRUE;
return 0;
}
LRESULT OnClockMessage(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
return SendMessageW(m_hwndClock, uMsg, wParam, lParam);
}
LRESULT OnPagerMessage(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
return SendMessageW(m_hwndPager, uMsg, wParam, lParam);
}
LRESULT OnRealign(INT uCode, LPNMHDR hdr, BOOL& bHandled)
{
hdr->hwndFrom = m_hWnd;
return GetParent().SendMessage(WM_NOTIFY, 0, (LPARAM)hdr);
}
HRESULT WINAPI GetWindow(HWND* phwnd)
{
if (!phwnd)
return E_INVALIDARG;
*phwnd = m_hWnd;
return S_OK;
}
HRESULT WINAPI ContextSensitiveHelp(BOOL fEnterMode)
{
return E_NOTIMPL;
}
DECLARE_NOT_AGGREGATABLE(CTrayNotifyWnd)
DECLARE_PROTECT_FINAL_CONSTRUCT()
BEGIN_COM_MAP(CTrayNotifyWnd)
COM_INTERFACE_ENTRY_IID(IID_IOleWindow, IOleWindow)
END_COM_MAP()
DECLARE_WND_CLASS_EX(szTrayNotifyWndClass, CS_DBLCLKS, COLOR_3DFACE)
BEGIN_MSG_MAP(CTrayNotifyWnd)
MESSAGE_HANDLER(WM_CREATE, OnCreate)
MESSAGE_HANDLER(WM_THEMECHANGED, OnThemeChanged)
MESSAGE_HANDLER(WM_ERASEBKGND, OnEraseBackground)
MESSAGE_HANDLER(WM_SIZE, OnSize)
MESSAGE_HANDLER(WM_NCHITTEST, OnNcHitTest)
MESSAGE_HANDLER(WM_CONTEXTMENU, OnCtxMenu) // FIXME: This handler is not necessary in Windows
MESSAGE_HANDLER(WM_NCLBUTTONDBLCLK, OnClockMessage)
MESSAGE_HANDLER(TWM_SETTINGSCHANGED, OnClockMessage)
MESSAGE_HANDLER(WM_SETFONT, OnClockMessage)
MESSAGE_HANDLER(WM_SETTINGCHANGE, OnPagerMessage)
MESSAGE_HANDLER(WM_COPYDATA, OnPagerMessage)
NOTIFY_CODE_HANDLER(NTNWM_REALIGN, OnRealign)
MESSAGE_HANDLER(TNWM_GETMINIMUMSIZE, OnGetMinimumSize)
END_MSG_MAP()
HRESULT Initialize(IN HWND hwndParent)
{
DWORD dwStyle = WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
Create(hwndParent, 0, NULL, dwStyle, WS_EX_STATICEDGE);
if (!m_hWnd)
return E_FAIL;
return S_OK;
}
};
HRESULT CTrayNotifyWnd_CreateInstance(HWND hwndParent, REFIID riid, void **ppv)
{
return ShellObjectCreatorInit<CTrayNotifyWnd>(hwndParent, riid, ppv);
}
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