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204 lines
5 KiB
C
204 lines
5 KiB
C
/*
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* ReactOS Task Manager
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*
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* trayicon.c
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*
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* Copyright (C) 1999 - 2001 Brian Palmer <brianp@reactos.org>
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* 2005 Klemens Friedl <frik85@reactos.at>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "precomp.h"
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HICON TrayIcon_GetProcessorUsageIcon(void)
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{
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HICON hTrayIcon = NULL;
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HDC hScreenDC = NULL;
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HDC hDC = NULL;
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HBITMAP hBitmap = NULL;
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HBITMAP hOldBitmap = NULL;
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HBITMAP hBitmapMask = NULL;
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ICONINFO iconInfo;
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ULONG ProcessorUsage;
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int nLinesToDraw;
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HBRUSH hBitmapBrush = NULL;
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RECT rc;
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/*
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* Get a handle to the screen DC
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*/
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hScreenDC = GetDC(NULL);
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if (!hScreenDC)
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goto done;
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/*
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* Create our own DC from it
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*/
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hDC = CreateCompatibleDC(hScreenDC);
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if (!hDC)
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goto done;
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/*
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* Load the bitmaps
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*/
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hBitmap = LoadBitmapW(hInst, MAKEINTRESOURCEW(IDB_TRAYICON));
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hBitmapMask = LoadBitmapW(hInst, MAKEINTRESOURCEW(IDB_TRAYMASK));
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if (!hBitmap || !hBitmapMask)
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goto done;
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hBitmapBrush = CreateSolidBrush(RGB(0, 255, 0));
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if (!hBitmapBrush)
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goto done;
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/*
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* Select the bitmap into our device context
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* so we can draw on it.
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*/
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hOldBitmap = (HBITMAP) SelectObject(hDC, hBitmap);
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/*
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* Get the cpu usage
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*/
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ProcessorUsage = PerfDataGetProcessorUsage();
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/*
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* Calculate how many lines to draw
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* since we have 11 rows of space
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* to draw the cpu usage instead of
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* just having 10.
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*/
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nLinesToDraw = (ProcessorUsage + (ProcessorUsage / 10)) / 11;
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rc.left = 3;
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rc.top = 12 - nLinesToDraw;
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rc.right = 13;
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rc.bottom = 13;
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/*
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* Now draw the cpu usage
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*/
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if (nLinesToDraw)
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FillRect(hDC, &rc, hBitmapBrush);
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/*
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* Now that we are done drawing put the
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* old bitmap back.
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*/
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hBitmap = SelectObject(hDC, hOldBitmap);
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hOldBitmap = NULL;
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iconInfo.fIcon = TRUE;
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iconInfo.hbmMask = hBitmapMask;
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iconInfo.hbmColor = hBitmap;
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hTrayIcon = CreateIconIndirect(&iconInfo);
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done:
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/*
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* Cleanup
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*/
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if (hScreenDC)
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ReleaseDC(NULL, hScreenDC);
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if (hDC)
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DeleteDC(hDC);
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if (hBitmapBrush)
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DeleteObject(hBitmapBrush);
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if (hBitmap)
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DeleteObject(hBitmap);
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if (hBitmapMask)
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DeleteObject(hBitmapMask);
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/*
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* Return the newly created tray icon (if successful)
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*/
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return hTrayIcon;
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}
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BOOL TrayIcon_ShellAddTrayIcon(void)
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{
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NOTIFYICONDATAW nid;
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HICON hIcon = NULL;
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BOOL bRetVal;
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WCHAR szMsg[64];
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memset(&nid, 0, sizeof(NOTIFYICONDATAW));
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hIcon = TrayIcon_GetProcessorUsageIcon();
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nid.cbSize = sizeof(NOTIFYICONDATAW);
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nid.hWnd = hMainWnd;
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nid.uID = 0;
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nid.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;
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nid.uCallbackMessage = WM_ONTRAYICON;
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nid.hIcon = hIcon;
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LoadStringW( GetModuleHandleW(NULL), IDS_MSG_TRAYICONCPUUSAGE, szMsg, sizeof(szMsg) / sizeof(szMsg[0]));
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wsprintfW(nid.szTip, szMsg, PerfDataGetProcessorUsage());
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bRetVal = Shell_NotifyIconW(NIM_ADD, &nid);
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if (hIcon)
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DestroyIcon(hIcon);
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return bRetVal;
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}
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BOOL TrayIcon_ShellRemoveTrayIcon(void)
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{
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NOTIFYICONDATAW nid;
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BOOL bRetVal;
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memset(&nid, 0, sizeof(NOTIFYICONDATAW));
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nid.cbSize = sizeof(NOTIFYICONDATAW);
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nid.hWnd = hMainWnd;
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nid.uID = 0;
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nid.uFlags = 0;
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nid.uCallbackMessage = WM_ONTRAYICON;
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bRetVal = Shell_NotifyIconW(NIM_DELETE, &nid);
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return bRetVal;
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}
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BOOL TrayIcon_ShellUpdateTrayIcon(void)
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{
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NOTIFYICONDATAW nid;
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HICON hIcon = NULL;
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BOOL bRetVal;
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WCHAR szTemp[64];
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memset(&nid, 0, sizeof(NOTIFYICONDATAW));
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hIcon = TrayIcon_GetProcessorUsageIcon();
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nid.cbSize = sizeof(NOTIFYICONDATAW);
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nid.hWnd = hMainWnd;
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nid.uID = 0;
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nid.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;
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nid.uCallbackMessage = WM_ONTRAYICON;
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nid.hIcon = hIcon;
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LoadStringW(hInst, IDS_MSG_TRAYICONCPUUSAGE, szTemp, sizeof(szTemp)/sizeof(szTemp[0]));
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wsprintfW(nid.szTip, szTemp, PerfDataGetProcessorUsage());
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bRetVal = Shell_NotifyIconW(NIM_MODIFY, &nid);
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if (hIcon)
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DestroyIcon(hIcon);
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return bRetVal;
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}
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