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Added support for splash screen.

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LoRd_MuldeR 2020-09-26 18:51:42 +02:00
parent 6a5ef7f665
commit 2e8e6df7a2
6 changed files with 226 additions and 144 deletions
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LICENSE.txt
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@ -1,121 +1,18 @@
Creative Commons Legal Code
Copyright 2020 LoRd_MuldeR <mulder2@gmx.de>
CC0 1.0 Universal
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
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the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
HEREUNDER.
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
Statement of Purpose
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/************************************************************/
/* Launch5j, by LoRd_MuldeR <MuldeR2@GMX.de> */
/* Java JAR wrapper for creating Windows native executables */
/* https://github.com/lordmulder/ */
/* */
/* This work has been released under the MIT license. */
/* Please see LICENSE.TXT for details! */
/* */
/* ACKNOWLEDGEMENT */
/* This project is partly inspired by the Launch4j project: */
/* https://sourceforge.net/p/launch4j/ */
/************************************************************/
#include "../src/resource.h"
// ICON
ID_APP_ICON ICON "launcher.ico"
// BITMAP
ID_SPLASH_BITMAP BITMAP "splash_screen.bmp"

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199
src/main.c
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@ -1,15 +1,36 @@
/************************************************************/
/* Launch5j, by LoRd_MuldeR <MuldeR2@GMX.de> */
/* Java JAR wrapper for creating Windows native executables */
/* https://github.com/lordmulder/ */
/* */
/* This work has been released under the MIT license. */
/* Please see LICENSE.TXT for details! */
/* */
/* ACKNOWLEDGEMENT */
/* This project is partly inspired by the Launch4j project: */
/* https://sourceforge.net/p/launch4j/ */
/************************************************************/
#define WIN32_LEAN_AND_MEAN 1
#include <Windows.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <direct.h>
#include "resource.h"
#define WIN32_LEAN_AND_MEAN 1
#include <Windows.h>
// Const
static const DWORD SPLASH_SCREEN_TIMEOUT = 30U;
static const wchar_t *const JRE_RELATIVE_PATH = L"runtime\\bin\\javaw.exe";
// Options
#define ENABLE_SPLASH 1
#define WAIT_FOR_INPUT_IDLE 1
//#define JAR_FILE_WRAPPED 1
/* ======================================================================== */
/* String routines */
/* ======================================================================== */
@ -156,6 +177,7 @@ static const wchar_t *get_executable_directory(const wchar_t *const executable_p
static const wchar_t *get_jarfile_path(const wchar_t *const executable_path, const wchar_t *const executable_directory)
{
#ifndef JAR_FILE_WRAPPED
const wchar_t *jarfile_path = NULL;
const wchar_t *const path_prefix = remove_file_extension(executable_path);
@ -175,6 +197,9 @@ static const wchar_t *get_jarfile_path(const wchar_t *const executable_path, con
free((void*)path_prefix);
return jarfile_path;
#else
return wcsdup(executable_path); /*JAR file is wrapped*/
#endif
}
/* ======================================================================== */
@ -201,6 +226,49 @@ static const BOOL set_current_directory(const wchar_t *const path)
}
}
/* ======================================================================== */
/* Splash screen */
/* ======================================================================== */
static BOOL create_splash_screen(const HWND hwnd, const HANDLE splash_image)
{
if (hwnd && splash_image)
{
RECT rect;
SendMessageW(hwnd, STM_SETIMAGE, IMAGE_BITMAP, (LPARAM) splash_image);
GetWindowRect(hwnd, &rect);
const int x = (GetSystemMetrics(SM_CXSCREEN) - (rect.right - rect.left)) / 2;
const int y = (GetSystemMetrics(SM_CYSCREEN) - (rect.bottom - rect.top)) / 2;
SetWindowPos(hwnd, HWND_TOP, x, y, 0, 0, SWP_NOSIZE);
ShowWindow(hwnd, SW_SHOW);
return UpdateWindow(hwnd);
}
return FALSE;
}
static BOOL process_window_messages(const HWND hwnd)
{
BOOL result = FALSE;
if (hwnd != NULL)
{
MSG msg = {};
for (DWORD k = 0U; k < MAXWORD; ++k)
{
if (PeekMessageW(&msg, hwnd, 0U, 0U, PM_REMOVE))
{
result = TRUE;
TranslateMessage(&msg);
DispatchMessageW(&msg);
}
else
{
break; /*no more messages!*/
}
}
}
return result;
}
/* ======================================================================== */
/* Message box */
/* ======================================================================== */
@ -236,32 +304,79 @@ while(0)
} \
while(0)
/* ======================================================================== */
/* Utilities */
/* ======================================================================== */
static void close_handle(HANDLE *const handle)
{
if(*handle)
{
CloseHandle(*handle);
*handle = NULL;
}
}
static void delete_object(HGDIOBJ *const handle)
{
if(*handle)
{
DeleteObject(*handle);
*handle = NULL;
}
}
static void destroy_window(HWND *const hwnd)
{
if(*hwnd)
{
DestroyWindow(*hwnd);
*hwnd = NULL;
}
}
/* ======================================================================== */
/* MAIN */
/* ======================================================================== */
int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine, int nCmdShow)
{
int exit_code = -1;
int result = -1;
const wchar_t *executable_path = NULL, *executable_directory = NULL, *jarfile_path = NULL, *java_runtime_path = NULL, *command_line = NULL;
STARTUPINFOW startup_info;
HGDIOBJ splash_image = NULL;
DWORD exit_code = 0U;
PROCESS_INFORMATION process_info;
STARTUPINFOW startup_info;
// Initialize
SecureZeroMemory(&startup_info, sizeof(STARTUPINFOW));
SecureZeroMemory(&process_info, sizeof(PROCESS_INFORMATION));
// Create the window
HWND hwnd = CreateWindowExW(WS_EX_TOOLWINDOW | WS_EX_TOPMOST, L"STATIC", L"", WS_POPUP | SS_BITMAP, 0, 0, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);
// Show the splash screen
#ifdef ENABLE_SPLASH
if(splash_image = LoadImage(hInstance, MAKEINTRESOURCE(ID_SPLASH_BITMAP), IMAGE_BITMAP, 0, 0, LR_DEFAULTSIZE))
{
if(create_splash_screen(hwnd, splash_image))
{
process_window_messages(hwnd);
}
}
#endif
// Find executable path
if(!(executable_path = get_executable_path()))
{
show_message(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"System Error", L"The path of the executable could not be determined!");
show_message(hwnd, MB_ICONERROR | MB_TOPMOST, L"System Error", L"The path of the executable could not be determined!");
goto cleanup;
}
// Find executable directory
if(!(executable_directory = get_executable_directory(executable_path)))
{
show_message(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"System Error", L"The executable directory could not be determined!");
show_message(hwnd, MB_ICONERROR | MB_TOPMOST, L"System Error", L"The executable directory could not be determined!");
goto cleanup;
}
@ -274,28 +389,30 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine
// Find the JAR file path
if(!(jarfile_path = get_jarfile_path(executable_path, executable_directory)))
{
show_message(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"System Error", L"The path of the JAR file could not be determined!");
show_message(hwnd, MB_ICONERROR | MB_TOPMOST, L"System Error", L"The path of the JAR file could not be determined!");
goto cleanup;
}
// Find the Java runtime path
// Find the Java runtime executable path
if(!(java_runtime_path = awprintf(L"%ls\\%ls", executable_directory, JRE_RELATIVE_PATH)))
{
show_message(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"System Error", L"The path of the Java runtime could not be determined!");
show_message(hwnd, MB_ICONERROR | MB_TOPMOST, L"System Error", L"The path of the Java runtime could not be determined!");
goto cleanup;
}
// Does JAR file exist?
// Does the JAR file exist?
#ifndef JAR_FILE_WRAPPED
if(!file_exists(jarfile_path))
{
show_message_format(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"JAR not found", L"The required JAR file could not be found:\n\n%ls\n\n\nRe-installing the application may fix the problem!", jarfile_path);
show_message_format(hwnd, MB_ICONERROR | MB_TOPMOST, L"JAR not found", L"The required JAR file could not be found:\n\n%ls\n\n\nRe-installing the application may fix the problem!", jarfile_path);
goto cleanup;
}
#endif
// Does the Java runtime exist?
// Does the Java runtime executable exist?
if(!file_exists(java_runtime_path))
{
show_message_format(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"Java not found", L"The required Java runtime could not be found:\n\n%ls\n\n\nRe-installing the application may fix the problem!", java_runtime_path);
show_message_format(hwnd, MB_ICONERROR | MB_TOPMOST, L"Java not found", L"The required Java runtime could not be found:\n\n%ls\n\n\nRe-installing the application may fix the problem!", java_runtime_path);
goto cleanup;
}
@ -303,37 +420,67 @@ int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine
command_line = NOT_EMPTY(pCmdLine) ? awprintf(L"\"%ls\" -jar \"%ls\" %ls", java_runtime_path, jarfile_path, pCmdLine) : awprintf(L"\"%ls\" -jar \"%ls\"", java_runtime_path, jarfile_path);
if(!command_line)
{
show_message(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"System Error", L"The Java command-line could not be generated!");
show_message(hwnd, MB_ICONERROR | MB_TOPMOST, L"System Error", L"The Java command-line could not be generated!");
goto cleanup;
}
// Process pending window messages
#ifdef ENABLE_SPLASH
process_window_messages(hwnd);
#endif
// Now actually start the process!
if(!CreateProcessW(NULL, (LPWSTR)command_line, NULL, NULL, FALSE, 0U, NULL, executable_directory, &startup_info, &process_info))
{
const wchar_t *const error_text = describe_system_error(GetLastError());
if(error_text)
{
show_message_format(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"System Error", L"Failed to create the Java process:\n\n%ls\n\n\n%ls", command_line, error_text);
show_message_format(hwnd, MB_ICONERROR | MB_TOPMOST, L"System Error", L"Failed to create the Java process:\n\n%ls\n\n\n%ls", command_line, error_text);
free((void*)error_text);
}
else
{
show_message_format(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"System Error", L"Failed to create the Java process:\n\n%ls", command_line);
show_message_format(hwnd, MB_ICONERROR | MB_TOPMOST, L"System Error", L"Failed to create the Java process:\n\n%ls", command_line);
}
goto cleanup;
}
// Process pending window messages
#ifdef ENABLE_SPLASH
process_window_messages(hwnd);
#ifdef WAIT_FOR_INPUT_IDLE
for (DWORD t = 0U; t < SPLASH_SCREEN_TIMEOUT; ++t)
{
if (WaitForInputIdle(process_info.hProcess, 1000U) != WAIT_TIMEOUT)
{
break; /*child-process is ready!*/
}
if (WaitForSingleObject(process_info.hProcess, 1U) != WAIT_TIMEOUT)
{
break; /*child process terminated!*/
}
process_window_messages(hwnd);
}
#endif
destroy_window(&hwnd);
#endif
// Wait for process to exit
WaitForSingleObject(process_info.hProcess, INFINITE);
// Get the exit code
if(GetExitCodeProcess(process_info.hProcess, &exit_code))
{
result = (int) exit_code;
}
cleanup:
if(process_info.hThread)
{
CloseHandle(process_info.hThread);
}
close_handle(&process_info.hThread);
close_handle(&process_info.hProcess);
if(process_info.hProcess)
{
CloseHandle(process_info.hProcess);
}
destroy_window(&hwnd);
delete_object(splash_image);
free((void*)command_line);
free((void*)java_runtime_path);
@ -341,5 +488,5 @@ cleanup:
free((void*)executable_directory);
free((void*)executable_path);
return exit_code;
return result;
}

18
src/resource.h Normal file
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@ -0,0 +1,18 @@
/************************************************************/
/* Launch5j, by LoRd_MuldeR <MuldeR2@GMX.de> */
/* Java JAR wrapper for creating Windows native executables */
/* https://github.com/lordmulder/ */
/* */
/* This work has been released under the MIT license. */
/* Please see LICENSE.TXT for details! */
/* */
/* ACKNOWLEDGEMENT */
/* This project is partly inspired by the Launch4j project: */
/* https://sourceforge.net/p/launch4j/ */
/************************************************************/
// ICON
#define ID_APP_ICON 1
// BITMAP
#define ID_SPLASH_BITMAP 1