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/*
* ReactOS Task Manager
*
* trayicon.c
*
* Copyright (C) 1999 - 2001 Brian Palmer <brianp@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 St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#include <commctrl.h>
#include <winnt.h>
#include <shellapi.h>
#include "taskmgr.h"
#include "perfdata.h"
static HICON TrayIcon_GetProcessorUsageIcon(void)
{
HICON hTrayIcon = NULL;
HDC hScreenDC = NULL;
HDC hDC = NULL;
HBITMAP hBitmap = NULL;
HBITMAP hOldBitmap;
HBITMAP hBitmapMask = NULL;
ICONINFO iconInfo;
ULONG ProcessorUsage;
int nLinesToDraw;
HBRUSH hBitmapBrush = NULL;
RECT rc;
/*
* Get a handle to the screen DC
*/
hScreenDC = GetDC(NULL);
if (!hScreenDC)
goto done;
/*
* Create our own DC from it
*/
hDC = CreateCompatibleDC(hScreenDC);
if (!hDC)
goto done;
/*
* Load the bitmaps
*/
hBitmap = LoadBitmapW(hInst, MAKEINTRESOURCEW(IDB_TRAYICON));
hBitmapMask = LoadBitmapW(hInst, MAKEINTRESOURCEW(IDB_TRAYMASK));
if (!hBitmap || !hBitmapMask)
goto done;
hBitmapBrush = CreateSolidBrush(RGB(0, 255, 0));
if (!hBitmapBrush)
goto done;
/*
* Select the bitmap into our device context
* so we can draw on it.
*/
hOldBitmap = SelectObject(hDC, hBitmap);
/*
* Get the cpu usage
*/
ProcessorUsage = PerfDataGetProcessorUsage();
/*
* Calculate how many lines to draw
* since we have 11 rows of space
* to draw the cpu usage instead of
* just having 10.
*/
nLinesToDraw = (ProcessorUsage + (ProcessorUsage / 10)) / 11;
SetRect(&rc, 3, 12 - nLinesToDraw, 13, 13);
/*
* Now draw the cpu usage
*/
if (nLinesToDraw)
FillRect(hDC, &rc, hBitmapBrush);
/*
* Now that we are done drawing put the
* old bitmap back.
*/
SelectObject(hDC, hOldBitmap);
iconInfo.fIcon = TRUE;
iconInfo.xHotspot = 0;
iconInfo.yHotspot = 0;
iconInfo.hbmMask = hBitmapMask;
iconInfo.hbmColor = hBitmap;
hTrayIcon = CreateIconIndirect(&iconInfo);
done:
/*
* Cleanup
*/
if (hScreenDC)
ReleaseDC(NULL, hScreenDC);
if (hDC)
DeleteDC(hDC);
if (hBitmapBrush)
DeleteObject(hBitmapBrush);
if (hBitmap)
DeleteObject(hBitmap);
if (hBitmapMask)
DeleteObject(hBitmapMask);
/*
* Return the newly created tray icon (if successful)
*/
return hTrayIcon;
}
BOOL TrayIcon_ShellAddTrayIcon(void)
{
NOTIFYICONDATAW nid;
HICON hIcon = NULL;
BOOL bRetVal;
WCHAR wszCPU_Usage[255];
LoadStringW(hInst, IDS_STATUS_BAR_CPU_USAGE, wszCPU_Usage, ARRAY_SIZE(wszCPU_Usage));
memset(&nid, 0, sizeof(NOTIFYICONDATAW));
hIcon = TrayIcon_GetProcessorUsageIcon();
nid.cbSize = sizeof(NOTIFYICONDATAW);
nid.hWnd = hMainWnd;
nid.uID = 0;
nid.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;
nid.uCallbackMessage = WM_ONTRAYICON;
nid.hIcon = hIcon;
wsprintfW(nid.szTip, wszCPU_Usage, PerfDataGetProcessorUsage());
bRetVal = Shell_NotifyIconW(NIM_ADD, &nid);
if (hIcon)
DestroyIcon(hIcon);
return bRetVal;
}
BOOL TrayIcon_ShellRemoveTrayIcon(void)
{
NOTIFYICONDATAW nid;
BOOL bRetVal;
memset(&nid, 0, sizeof(NOTIFYICONDATAW));
nid.cbSize = sizeof(NOTIFYICONDATAW);
nid.hWnd = hMainWnd;
nid.uID = 0;
nid.uFlags = 0;
nid.uCallbackMessage = WM_ONTRAYICON;
bRetVal = Shell_NotifyIconW(NIM_DELETE, &nid);
return bRetVal;
}
BOOL TrayIcon_ShellUpdateTrayIcon(void)
{
NOTIFYICONDATAW nid;
HICON hIcon = NULL;
BOOL bRetVal;
WCHAR wszCPU_Usage[255];
LoadStringW(hInst, IDS_STATUS_BAR_CPU_USAGE, wszCPU_Usage, ARRAY_SIZE(wszCPU_Usage));
memset(&nid, 0, sizeof(NOTIFYICONDATAW));
hIcon = TrayIcon_GetProcessorUsageIcon();
nid.cbSize = sizeof(NOTIFYICONDATAW);
nid.hWnd = hMainWnd;
nid.uID = 0;
nid.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;
nid.uCallbackMessage = WM_ONTRAYICON;
nid.hIcon = hIcon;
wsprintfW(nid.szTip, wszCPU_Usage, PerfDataGetProcessorUsage());
bRetVal = Shell_NotifyIconW(NIM_MODIFY, &nid);
if (hIcon)
DestroyIcon(hIcon);
return bRetVal;
}
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