Remember last time file

Mainspring/CMakeLists.txt

@@ -1,5 +1,5 @@
 # Mainspring app CMakeLists.txt
-add_executable(Mainspring WIN32 "src/main.cpp" "src/pch.h" "src/Application.h" "src/Application.cpp" "resource.rc" "src/resources.h")
+add_executable(Mainspring WIN32 "src/main.cpp" "src/pch.h" "src/Application.h" "src/Application.cpp" "resource.rc" "src/resources.h" "src/utility.h" "src/utility.cpp")
 
 set_property(TARGET Mainspring PROPERTY CXX_STANDARD 20)
 

Mainspring/resource.rc

@@ -2,12 +2,61 @@
 #include "windows.h"
 #include "winres.h"
 #include "src/resources.h"
+#include "version.h"
 
-IDD_DIALOGMAIN DIALOGEX 0, 0, 175, 75
+IDI_ICONMAIN ICON "res/mainspring.ico"
+
+IDR_MENUMAIN MENU
+BEGIN
+    POPUP "&File"
+    BEGIN
+        MENUITEM "&Reset\tCtrl+R" ID_FILE_RESET
+        MENUITEM "&Save Time\tCtrl+S" ID_FILE_SAVE
+        MENUITEM "Save Time &As...\tCtrl+Shift+S" ID_FILE_SAVEAS
+        MENUITEM "&Open Time\tCtrl+O" ID_FILE_OPEN
+        MENUITEM SEPARATOR
+        MENUITEM "&Exit\tAlt+F4" ID_FILE_EXIT
+    END
+
+    POPUP "&Help"
+    BEGIN
+        MENUITEM "&About" ID_HELP_ABOUT
+    END
+END
+
+IDD_DIALOGMAIN DIALOGEX 0, 0, 200, 70
 STYLE WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX | DS_SETFONT
 FONT 8, "MS Shell Dlg", 400, 0, 0x1
+MENU IDR_MENUMAIN
 BEGIN
-    CTEXT "APPNAME", IDC_STATICTITLE, 30, 5, 115, 20, SS_CENTERIMAGE
-    CTEXT "TIME", IDC_STATICTIME, 10, 25, 155, 25, SS_CENTERIMAGE
-    DEFPUSHBUTTON "STARTPAUSE" IDC_BUTTONSTARTPAUSE, 63, 55, 50, 15
+    CTEXT "APPNAME", IDC_STATICTITLE, 0, 0, 200, 20, SS_CENTERIMAGE
+    CTEXT "TIME", IDC_STATICTIME, 8, 20, 184, 28, SS_CENTERIMAGE | SS_SUNKEN
+    DEFPUSHBUTTON "STARTPAUSE" IDC_BUTTONSTARTPAUSE, 75, 53, 50, 15
+END
+
+IDA_ACCELMAIN ACCELERATORS
+BEGIN
+    "R",    ID_FILE_RESET,    CONTROL, VIRTKEY
+    "S",    ID_FILE_SAVE,   CONTROL, VIRTKEY
+    "S",    ID_FILE_SAVEAS, CONTROL, SHIFT, VIRTKEY
+    "O",    ID_FILE_OPEN,   CONTROL, VIRTKEY
+END
+
+VS_VERSION_INFO VERSIONINFO
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904b0"
+        BEGIN
+            VALUE "CompanyName", "Grayson Riffe"
+            VALUE "FileDescription", "Mainspring"
+            VALUE "ProductName", "Mainspring - A simple timekeeper"
+            VALUE "ProductVersion", APPVERSION
+            VALUE "LegalCopyright", "Copyright (C) 2025"
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x409, 1200
+    END
 END

Mainspring/src/Application.cpp

@@ -2,6 +2,14 @@
 #include "pch.h"
 #include "Application.h"
 #include "resources.h"
+#include "utility.h"
+
+// Define timer IDs
+#define IDT_UPDATEAPP 1
+#define IDT_SAVEDTEXT 2
+
+// Define window message to update the timer display
+#define WM_UPDATEAPP WM_USER + 1
 
 // Enable visual styles
 #pragma comment(linker, "\"/manifestdependency:type='win32' \
@@ -12,12 +20,31 @@ namespace mainspring {
     Application::Application(const char* appName, const char* appVersion)
         : m_appName(appName)
         , m_appVersion(appVersion)
+        , m_dlg()
+        , m_timing(false)
+        , m_startpauseButtonPressed(false)
+        , m_elapsedSaved()
+        , m_startTime()
+        , m_file()
+        , m_showSavedText(false)
     {
         std::cout << std::format("{} {}\n", m_appName, m_appVersion);
     }
 
     void Application::run() {
-        DialogBoxParam(nullptr, MAKEINTRESOURCE(IDD_DIALOGMAIN), nullptr, reinterpret_cast<DLGPROC>(mainDlgProc), reinterpret_cast<LPARAM>(this));
+        std::string configPath = getConfigPath();
+        std::string recentFile;
+        if (readFile(configPath.c_str(), recentFile) && !recentFile.empty())
+            open(recentFile);
+
+        m_dlg = CreateDialogParam(nullptr, MAKEINTRESOURCE(IDD_DIALOGMAIN), nullptr, reinterpret_cast<DLGPROC>(mainDlgProc), reinterpret_cast<LPARAM>(this));
+
+        HACCEL hAccel = LoadAccelerators(GetModuleHandle(NULL), MAKEINTRESOURCE(IDA_ACCELMAIN));
+        MSG msg = {};
+        ShowWindow(m_dlg, SW_SHOW);
+        while (GetMessage(&msg, nullptr, 0, 0))
+            if (!TranslateAccelerator(m_dlg, hAccel, &msg))
+                IsDialogMessage(m_dlg, &msg);
     }
 
     BOOL CALLBACK Application::mainDlgProc(HWND dlg, UINT msg, WPARAM wParam, LPARAM lParam) {
@@ -28,6 +55,7 @@ namespace mainspring {
                 app = reinterpret_cast<Application*>(lParam);
 
                 SetWindowText(dlg, app->m_appName);
+                SendMessage(dlg, WM_SETICON, ICON_BIG, reinterpret_cast<LPARAM>(LoadIcon(GetModuleHandle(NULL), MAKEINTRESOURCE(IDI_ICONMAIN))));
 
                 POINT cursor = {};
                 GetCursorPos(&cursor);
@@ -36,30 +64,206 @@ namespace mainspring {
                 GetMonitorInfo(MonitorFromPoint(cursor, MONITOR_DEFAULTTONEAREST), &mi);
                 SetWindowPos(dlg, nullptr, mi.rcMonitor.left + 100, mi.rcMonitor.top + 100, 0, 0, SWP_NOZORDER | SWP_NOSIZE);
 
-                SetDlgItemText(dlg, IDC_STATICTITLE, app->m_appName);
                 LOGFONT lFont = {};
                 lFont.lfHeight = 30;
                 HFONT titleFont = CreateFontIndirect(&lFont);
                 SendMessage(GetDlgItem(dlg, IDC_STATICTITLE), WM_SETFONT, reinterpret_cast<WPARAM>(titleFont), NULL);
 
-                lFont.lfHeight = 40;
+                std::memcpy(lFont.lfFaceName, "Consolas", 9);
+                lFont.lfHeight = 60;
                 HFONT timeFont = CreateFontIndirect(&lFont);
                 SendMessage(GetDlgItem(dlg, IDC_STATICTIME), WM_SETFONT, reinterpret_cast<WPARAM>(timeFont), NULL);
 
-                SetDlgItemText(dlg, IDC_BUTTONSTARTPAUSE, "Start");
+                SendMessage(dlg, WM_UPDATEAPP, NULL, NULL);
+                SetTimer(dlg, IDT_UPDATEAPP, 50, nullptr);
 
                 return TRUE;
             }
 
-            case WM_CLOSE:
-                EndDialog(dlg, 0);
+            case WM_COMMAND:
+                switch (LOWORD(wParam)) {
+                    case IDC_BUTTONSTARTPAUSE:
+                        app->m_startpauseButtonPressed = true;
+                        return TRUE;
+
+                    case ID_FILE_RESET: {
+                        if (!app->m_file.empty())
+                            app->save();
+
+                        app->reset();
+                        return TRUE;
+                    }
+
+                    case ID_FILE_SAVE: {
+                        app->save();
+                        return TRUE;
+                    }
+
+                    case ID_FILE_SAVEAS: {
+                        app->save(true);
+                        return TRUE;
+                    }
+
+                    case ID_FILE_OPEN: {
+                        if (!app->m_file.empty())
+                            app->save();
+
+                        app->open();
+                        return TRUE;
+                    }
+
+                    case ID_FILE_EXIT: {
+                        SendMessage(dlg, WM_CLOSE, NULL, NULL);
+                        return TRUE;
+                    }
+
+                    case ID_HELP_ABOUT:
+                        MessageBox(dlg, std::format("{} {}\nCopyright Grayson Riffe 2025\ngraysonriffe.com\n\n"
+                            "\tMainspring is a simple timekeeper. It can be used as a simple stopwatch for short-term activities, or "
+                            "it can log hours on a longer-term project. Times can be saved to a file, and any subsequent uses will autosave to that file. The most recent "
+                            "time will be loaded when Mainspring starts.", app->m_appName, app->m_appVersion).c_str(), std::format("About {}", app->m_appName).c_str(), MB_OK);
+                        return TRUE;
+                }
+
+                return FALSE;
+
+            case WM_TIMER:
+                switch (wParam) {
+                    case IDT_UPDATEAPP:
+                        SendMessage(dlg, WM_UPDATEAPP, NULL, NULL);
+                        return TRUE;
+
+                    case IDT_SAVEDTEXT:
+                        app->m_showSavedText = false;
+                        return TRUE;
+                }
+
+                return FALSE;
+
+                return TRUE;
+
+            case WM_UPDATEAPP: {
+                if (app->m_startpauseButtonPressed) {
+                    app->m_startpauseButtonPressed = false;
+
+                    if (!app->m_timing)
+                        app->m_startTime = Clock::now();
+                    else
+                        app->m_elapsedSaved += app->getElapsed();
+
+                    app->m_timing = !app->m_timing;
+                }
+
+                if (app->m_showSavedText)
+                    SetDlgItemText(dlg, IDC_STATICTITLE, "Saved!");
+
+                else if (!app->m_file.empty()) {
+                    std::string filename = app->m_file.substr(app->m_file.find_last_of('\\') + 1);
+                    SetDlgItemText(dlg, IDC_STATICTITLE, filename.c_str());
+                }
+                else
+                    SetDlgItemText(dlg, IDC_STATICTITLE, app->m_appName);
+
+                if (app->m_timing)
+                    SetDlgItemText(dlg, IDC_BUTTONSTARTPAUSE, "Pause");
+                else
+                    SetDlgItemText(dlg, IDC_BUTTONSTARTPAUSE, !app->m_elapsedSaved ? "Start" : "Resume");
+
+                Seconds totalTime = app->m_elapsedSaved + app->getElapsed();
+
+                uint32_t hr = totalTime / (3600), min = totalTime % (3600) / 60, sec = totalTime % 60;
+                SetDlgItemText(dlg, IDC_STATICTIME, std::format("{:03}:{:02}:{:02}", hr, min, sec).c_str());
+
+                return TRUE;
+            }
+
+            case WM_CLOSE: {
+                if (!app->m_file.empty())
+                    app->save();
+
+                std::string configPath = app->getConfigPath();
+                writeFile(configPath.c_str(), app->m_file);
+
+                KillTimer(dlg, 1);
+                DestroyWindow(dlg);
+                return TRUE;
+            }
+
+            case WM_DESTROY:
+                PostQuitMessage(0);
                 return TRUE;
         }
 
         return FALSE;
     }
 
-    Application::~Application() {
+    std::string Application::getConfigPath() {
+        char appDataPath[MAX_PATH] = {};
+        SHGetFolderPath(nullptr, CSIDL_APPDATA, nullptr, NULL, appDataPath);
+        return std::string(appDataPath) + "\\" + m_appName + "\\last";
+    }
 
+    Seconds Application::getElapsed() {
+        if (m_timing)
+            return Duration(Clock::now() - m_startTime).count();
+        else
+            return 0;
+    }
+
+    void Application::reset() {
+        m_timing = false;
+        m_elapsedSaved = 0;
+        m_file.clear();
+    }
+
+    void Application::save(bool saveas) {
+        if (m_file.empty() || saveas) {
+            OPENFILENAME ofn = {};
+            ofn.lStructSize = sizeof(ofn);
+            ofn.hwndOwner = m_dlg;
+            ofn.lpstrFilter = "Mainspring Time File (*.mspring)\0*.mspring\0\0";
+            ofn.lpstrDefExt = "mspring";
+            char fileBuf[MAX_PATH] = {};
+            ofn.lpstrFile = fileBuf;
+            ofn.nMaxFile = MAX_PATH;
+            ofn.Flags = OFN_OVERWRITEPROMPT;
+
+            if (GetSaveFileName(&ofn))
+                m_file = fileBuf;
+            else
+                return;
+        }
+
+        Seconds totalTime = m_elapsedSaved + getElapsed();
+        std::string saveData = std::to_string(totalTime);
+        writeFile(m_file.c_str(), saveData);
+        m_showSavedText = true;
+        SetTimer(m_dlg, IDT_SAVEDTEXT, 3000, nullptr);
+    }
+
+    void Application::open(std::string path) {
+        if (path.empty()) {
+            OPENFILENAME ofn = {};
+            ofn.lStructSize = sizeof(ofn);
+            ofn.hwndOwner = m_dlg;
+            ofn.lpstrFilter = "Mainspring Time File (*.mspring)\0*.mspring\0\0";
+            ofn.lpstrDefExt = "mspring";
+            char fileBuf[MAX_PATH] = {};
+            ofn.lpstrFile = fileBuf;
+            ofn.nMaxFile = MAX_PATH;
+            ofn.Flags = OFN_FILEMUSTEXIST;
+
+            if (GetOpenFileName(&ofn))
+                m_file = fileBuf;
+            else
+                return;
+        }
+        else
+            m_file = path;
+
+        std::string openData;
+        if (readFile(m_file.c_str(), openData))
+            // Update status text;
+            m_elapsedSaved = std::stoull(openData);
     }
 }

Mainspring/src/Application.h

@@ -1,17 +1,39 @@
 // Application class header
 
 namespace mainspring {
+    using Clock = std::chrono::high_resolution_clock;
+    using TimePoint = std::chrono::time_point<Clock>;
+    using Duration = std::chrono::duration<double, std::ratio<1, 1>>;
+
+    using Seconds = uint64_t;
+
     class Application {
     public:
         Application(const char* appName, const char* appVersion);
 
         void run();
-
-        ~Application();
     private:
         static BOOL CALLBACK mainDlgProc(HWND dlg, UINT msg, WPARAM wParam, LPARAM lParam);
 
+        std::string getConfigPath();
+
+        Seconds getElapsed(); // Gets the current timing session time
+
+        void reset();
+        void save(bool saveas = false);
+        void open(std::string path = "");
+
         const char* m_appName;
         const char* m_appVersion;
+
+        HWND m_dlg;
+
+        // Current state of the app
+        bool m_timing; // Currently timing?
+        bool m_startpauseButtonPressed; // Was the start / pause button pressed?
+        Seconds m_elapsedSaved; // Time saved
+        TimePoint m_startTime; // When the current timing session was started
+        std::string m_file; // Current time file path
+        bool m_showSavedText; // Save confirmation
     };
 }

Mainspring/src/pch.h

@@ -3,6 +3,7 @@
 // IO and strings
 #include <iostream>
 #include <fstream>
+#include <filesystem>
 #include <string>
 #include <format>
 
@@ -11,4 +12,6 @@
 
 // Windows
 #define WIN32_LEAN_AND_MEAN
-#include <Windows.h>
+#include <Windows.h>
+#include <commdlg.h>
+#include <ShlObj.h>

Mainspring/src/resources.h

@@ -1,6 +1,26 @@
 // Win32 resources
-#define IDD_DIALOGMAIN 101
 
-#define IDC_BUTTONSTARTPAUSE 1001
-#define IDC_STATICTITLE 1002
-#define IDC_STATICTIME 1003
+// Icon
+#define IDI_ICONMAIN 101
+
+// Dialog
+#define IDD_DIALOGMAIN  201
+
+// Menu
+#define IDR_MENUMAIN    301
+#define ID_FILE_RESET     302
+#define ID_FILE_SAVE    303
+#define ID_FILE_SAVEAS  304
+#define ID_FILE_OPEN    305
+#define ID_FILE_EXIT    306
+
+#define ID_HELP_ABOUT   311
+
+// Accelerators
+#define IDA_ACCELMAIN 401
+
+// Controls (text and buttons)
+#define IDC_BUTTONSTARTPAUSE    1001
+#define IDC_STATICTITLE         1002
+#define IDC_STATICTIME          1003
+#define IDC_STATICICON          1004

Mainspring/src/utility.cpp

@@ -0,0 +1,30 @@
+// Utility implementation
+#include "pch.h"
+#include "utility.h"
+
+namespace mainspring {
+    bool readFile(const char* filename, std::string& out) {
+        std::ifstream fileStream(filename, std::ios::binary | std::ios::ate);
+        if (!fileStream.is_open())
+            return false;
+
+        size_t fileSize = fileStream.tellg();
+        fileStream.seekg(0);
+        out.resize(fileSize);
+        fileStream.read(out.data(), fileSize);
+        return true;
+    }
+
+    bool writeFile(const char* filename, const std::string& in) {
+        std::string folder = filename;
+        folder.resize(folder.find_last_of('\\'));
+        if (!std::filesystem::exists(folder))
+            std::filesystem::create_directories(folder);
+        std::ofstream fileStream(filename, std::ios::binary | std::ios::trunc);
+        if (!fileStream.is_open())
+            return false;
+
+        fileStream << in;
+        return true;
+    }
+}

Mainspring/src/utility.h

@@ -0,0 +1,6 @@
+// Utility header
+
+namespace mainspring {
+    bool readFile(const char* filename, std::string& out);
+    bool writeFile(const char* filename, const std::string& in);
+}