watchful-eye/WatchfulEye/src/Application.cpp

355 lines
13 KiB
C++

// Application class implementation
#include "pch.h"
#include "Application.h"
#include "resource.h"
#define WINDOW_WIDTH 450
#define WINDOW_HEIGHT 185
#define WINDOW_STYLE WS_POPUP
#define EX_WINDOW_STYLE WS_EX_TOOLWINDOW
#define WM_TRAYICON WM_USER // Tray icon window message
#define IDM_ABOUT 1001 // "About" menu identifier
#define IDM_EXIT 1002 // "Exit" menu identifier
#define IDT_UPDATE 1 // Update timer identifier
#define WM_UPDATE WM_USER + 1 // Update window message
// Enable visual styles
#pragma comment(linker, "\"/manifestdependency:type='win32' \
name='Microsoft.Windows.Common-Controls' version='6.0.0.0' \
processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*'\"")
namespace watchfuleye {
Application::Application(const char* appName, const char* appVersion, unsigned int maximumMinutes, const char* driveToDetect)
: m_appName(appName)
, m_appVersion(appVersion)
, m_window(nullptr)
, m_running(true)
, m_active(false)
, m_overTime(false)
, m_maxMinutes(maximumMinutes)
, m_drive(driveToDetect)
, m_startTime()
, m_taskbarCreatedMessage(-1)
, m_region(nullptr)
, m_timeFont(nullptr)
, m_lowerFont(nullptr)
, m_greenBrush(nullptr)
, m_yellowBrush(nullptr)
, m_redBrush(nullptr)
, m_offscreenDC(nullptr)
, m_offscreenBitmap(nullptr)
{
std::cout << std::format("{} {}\n", m_appName, m_appVersion);
}
void Application::run() {
// Create window
SetProcessDpiAwarenessContext(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2); // Don't mess with the window size
WNDCLASS wc = {};
std::string windowClassName = "WatchfulEyeWindow";
wc.lpszClassName = windowClassName.c_str();
wc.hCursor = LoadCursor(NULL, IDC_SIZEALL);
wc.lpfnWndProc = wndProc;
RegisterClass(&wc);
m_window = CreateWindowEx(EX_WINDOW_STYLE, windowClassName.c_str(), m_appName.c_str(), WINDOW_STYLE, 0, 0, 0, 0, nullptr, nullptr, nullptr, this);
// Create tray icon
createTrayIcon();
// Create drive query thread
std::thread queryThread(&Application::queryThreadFunction, this);
ShowWindow(m_window, SW_SHOW);
MSG msg = {};
while (GetMessage(&msg, nullptr, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
m_running = false;
queryThread.join();
}
LRESULT CALLBACK Application::wndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
static Application* app = nullptr;
switch (msg) {
case WM_CREATE: {
app = reinterpret_cast<Application*>(reinterpret_cast<CREATESTRUCT*>(lParam)->lpCreateParams);
app->sizeWindow(hWnd);
// Round the window's corners
app->m_region = CreateRoundRectRgn(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT, 20, 20);
SetWindowRgn(hWnd, app->m_region, TRUE);
// Spawn in the lower right corner of the virtual screen (might be problematic in some cases)
int cornerX = GetSystemMetrics(SM_XVIRTUALSCREEN) + GetSystemMetrics(SM_CXVIRTUALSCREEN);
int cornerY = GetSystemMetrics(SM_YVIRTUALSCREEN) + GetSystemMetrics(SM_CYVIRTUALSCREEN);
// And set topmost flag
SetWindowPos(hWnd, HWND_TOPMOST, cornerX - 500, cornerY - 400, 0, 0, SWP_NOSIZE);
app->m_taskbarCreatedMessage = RegisterWindowMessage("TaskbarCreated");
// Set up UI
LOGFONT lFont = {};
strcpy(lFont.lfFaceName, "Consolas");
lFont.lfHeight = 35;
app->m_lowerFont = CreateFontIndirect(&lFont);
lFont.lfHeight = 180;
lFont.lfWeight = FW_BOLD;
app->m_timeFont = CreateFontIndirect(&lFont);
app->m_greenBrush = CreateSolidBrush(RGB(150, 255, 150));
app->m_yellowBrush = CreateSolidBrush(RGB(255, 255, 150));
app->m_redBrush = CreateSolidBrush(RGB(255, 150, 150));
// App will update (repaint) at 5 FPS
SendMessage(hWnd, WM_UPDATE, NULL, NULL);
SetTimer(hWnd, IDT_UPDATE, 200, nullptr);
return 0;
}
case WM_DPICHANGED: { // Prevents the window from resizing because of DPI changes
app->sizeWindow(hWnd);
return 0;
}
case WM_NCHITTEST: { // Allows the window to be moved by dragging from anywhere within it
LRESULT result = DefWindowProc(hWnd, msg, wParam, lParam);
if (result == HTCLIENT)
return HTCAPTION;
return result;
}
case WM_SETCURSOR: { // Allows the cursor to change with the above WM_NCHITTEST code
if (LOWORD(lParam) == HTCAPTION)
lParam = MAKELPARAM(HTCLIENT, HIWORD(lParam));
break;
}
case WM_TRAYICON: {
if (LOWORD(lParam) == WM_LBUTTONDOWN ||
LOWORD(lParam) == WM_RBUTTONDOWN) {
SetForegroundWindow(hWnd);
POINT cursor = {};
GetCursorPos(&cursor);
HMENU popupMenu = CreatePopupMenu();
AppendMenu(popupMenu, MF_STRING, IDM_ABOUT, "About");
AppendMenu(popupMenu, MF_STRING, IDM_EXIT, "Exit");
TrackPopupMenu(popupMenu, NULL, cursor.x, cursor.y, NULL, hWnd, nullptr);
DestroyMenu(popupMenu);
return 0;
}
break;
}
case WM_COMMAND: {
if (HIWORD(wParam) == 0 && LOWORD(wParam) == IDM_ABOUT) {
MessageBox(hWnd, std::format("{} {}\nCopyright Grayson Riffe 2026\ngraysonriffe.com\n\n"
"\t{} is a simple countdown application\n"
"specifically designed for this electronics testing labratory.\n"
"Hopefully, it's working!", app->m_appName, app->m_appVersion,
app->m_appName).c_str(), std::format("About {}", app->m_appName).c_str(), MB_OK);
return 0;
}
else if (HIWORD(wParam) == 0 && LOWORD(wParam) == IDM_EXIT) {
DestroyWindow(hWnd);
return 0;
}
break;
}
case WM_TIMER: {
if (wParam == IDT_UPDATE) {
SendMessage(hWnd, WM_UPDATE, NULL, NULL);
return 0;
}
break;
}
case WM_UPDATE: {
InvalidateRect(hWnd, nullptr, TRUE);
UpdateWindow(hWnd);
return 0;
}
case WM_ERASEBKGND: { // Don't erase the background, it is already done in WM_PAINT
return 1;
}
case WM_PAINT: {
PAINTSTRUCT ps = {};
HDC hDC = BeginPaint(hWnd, &ps);
RECT clientRect = {};
GetClientRect(hWnd, &clientRect);
// Create offscreen buffer if not already created
if (!app->m_offscreenDC) {
app->m_offscreenDC = CreateCompatibleDC(hDC);
app->m_offscreenBitmap = CreateCompatibleBitmap(hDC, clientRect.right - clientRect.left, clientRect.bottom - clientRect.top);
}
// Setup RECTs
RECT timeRect = clientRect;
timeRect.top -= 25, timeRect.bottom -= 25;
RECT lowerRect = { .top = WINDOW_HEIGHT - 65, .right = WINDOW_WIDTH, .bottom = WINDOW_HEIGHT };
HANDLE prevBitmap = SelectObject(app->m_offscreenDC, app->m_offscreenBitmap);
// Fill background
HBRUSH backgroundBrush = nullptr;
if (!app->m_active)
backgroundBrush = app->m_greenBrush;
else if (app->m_overTime)
backgroundBrush = app->m_redBrush;
else
backgroundBrush = app->m_yellowBrush;
FillRect(app->m_offscreenDC, &clientRect, backgroundBrush);
// Setup text options
SetTextColor(app->m_offscreenDC, RGB(0, 0, 0));
SetBkMode(app->m_offscreenDC, TRANSPARENT);
// Calculate time
Seconds elapsed = Duration(Clock::now() - app->m_startTime).count();
Seconds remaining = app->m_maxMinutes * 60;
if (app->m_active)
remaining -= elapsed;
if (!app->m_active || (app->m_active && !app->m_overTime)) { // Draw time
SelectObject(app->m_offscreenDC, app->m_timeFont);
unsigned int minutes = remaining % (3600) / 60, seconds = remaining % 60;
DrawText(app->m_offscreenDC, std::format("{:02}:{:02}", minutes, seconds).c_str(), -1, &timeRect, DT_SINGLELINE | DT_NOCLIP | DT_CENTER | DT_VCENTER);
}
if (!app->m_active) { // Ready (green)
SelectObject(app->m_offscreenDC, app->m_lowerFont);
DrawText(app->m_offscreenDC, "Ready", -1, &lowerRect, DT_SINGLELINE | DT_NOCLIP | DT_CENTER | DT_VCENTER);
}
else if (!app->m_overTime) { // Counting (yellow)
SelectObject(app->m_offscreenDC, app->m_lowerFont);
DrawText(app->m_offscreenDC, "Time Remaining on Tester", -1, &lowerRect, DT_SINGLELINE | DT_NOCLIP | DT_CENTER | DT_VCENTER);
}
else { // Over time (red)
SelectObject(app->m_offscreenDC, app->m_lowerFont);
DrawText(app->m_offscreenDC, "Please Eject Your USB", -1, &lowerRect, DT_SINGLELINE | DT_NOCLIP | DT_CENTER | DT_VCENTER);
SelectObject(app->m_offscreenDC, app->m_timeFont);
DrawText(app->m_offscreenDC, "STOP", -1, &timeRect, DT_SINGLELINE | DT_NOCLIP | DT_CENTER | DT_VCENTER);
}
if (remaining <= 0)
app->m_overTime = true;
BitBlt(hDC, 0, 0, clientRect.right - clientRect.left, clientRect.bottom - clientRect.top, app->m_offscreenDC, 0, 0, SRCCOPY);
SelectObject(app->m_offscreenDC, prevBitmap);
EndPaint(hWnd, &ps);
return 0;
}
case WM_CLOSE: {
// Do nothing
return 0;
}
case WM_DESTROY: {
PostQuitMessage(0);
return 0;
}
}
if (app && msg == app->m_taskbarCreatedMessage) {
app->createTrayIcon();
return 0;
}
return DefWindowProc(hWnd, msg, wParam, lParam);
}
void Application::sizeWindow(const HWND& hWnd) {
RECT clientRect = { .right = WINDOW_WIDTH, .bottom = WINDOW_HEIGHT };
AdjustWindowRectExForDpi(&clientRect, WINDOW_STYLE, FALSE, EX_WINDOW_STYLE, GetDpiForWindow(hWnd));
SetWindowPos(hWnd, nullptr, 0, 0, clientRect.right - clientRect.left, clientRect.bottom - clientRect.top, SWP_NOZORDER | SWP_NOMOVE);
}
void Application::createTrayIcon() {
NOTIFYICONDATA iconData = {};
iconData.cbSize = sizeof(iconData);
iconData.uVersion = NOTIFYICON_VERSION_4;
iconData.hWnd = m_window;
iconData.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP;
iconData.uCallbackMessage = WM_TRAYICON;
iconData.hIcon = LoadIcon(GetModuleHandle(NULL), MAKEINTRESOURCE(IDI_ICONMAIN));
strcpy(iconData.szTip, m_appName.c_str());
Shell_NotifyIcon(NIM_ADD, &iconData);
}
void Application::queryThreadFunction() {
char buff[100] = {};
while (m_running) {
bool driveDetected = QueryDosDevice(m_drive, buff, 100) > 0;
if (driveDetected && !m_active) {
m_active = true;
m_startTime = Clock::now();
}
else if (!driveDetected && m_active) {
m_active = false;
m_overTime = false;
}
std::this_thread::sleep_for(std::chrono::milliseconds(100));
}
}
Application::~Application() {
DeleteObject(m_region);
DeleteObject(m_timeFont);
DeleteObject(m_lowerFont);
DeleteObject(m_greenBrush);
DeleteObject(m_yellowBrush);
DeleteObject(m_redBrush);
DeleteObject(m_offscreenBitmap);
DeleteDC(m_offscreenDC);
}
}