SDLMain.mm

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/*
    Copyright (C) 2010 - 2025
    Part of the Battle for Wesnoth Project https://www.wesnoth.org/
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY.
 
    See the COPYING file for more details.
*/
 
/*  SDLMain.m - main entry point for our Cocoa-ized SDL app
    Initial Version: Darrell Walisser <dwaliss1@purdue.edu>
    Non-NIB-Code & other changes: Max Horn <max@quendi.de>
    Edited a lot for Wesnoth by Ben Anderman <ben@happyspork.com>
*/
 
#import <SDL3/SDL.h>
#import "SDLMain.h"
#include <vector>
 
#if MAC_OS_X_VERSION_MAX_ALLOWED < 101200
#define NSEventTypeKeyDown NSKeyDown
#define NSEventTypeKeyUp NSKeyUp
#define NSEventModifierFlagCommand NSCommandKeyMask
#endif
 
extern "C" int wesnoth_main(int argc, char **argv);
static std::vector<char*> gArgs;
 
@interface WesnothSDLApplication : NSApplication
@end
 
@implementation WesnothSDLApplication
/* Invoked from the Quit menu item */
- (void)terminate:(id)sender
{
    (void) sender;
    /* Post a SDL_EVENT_QUIT event */
    SDL_Event event;
    event.type = SDL_EVENT_QUIT;
    SDL_PushEvent(&event);
}
 
- (BOOL)_handleKeyEquivalent:(NSEvent *)theEvent
{
    [[super mainMenu] performKeyEquivalent:theEvent];
    return YES;
}
 
- (void) sendEvent:(NSEvent *)event
{
    if(NSEventTypeKeyDown == [event type] || NSEventTypeKeyUp == [event type])
    {
        if([event modifierFlags] & NSEventModifierFlagCommand)
        {
            [super sendEvent: event];
        }
    } else {
        [super sendEvent: event];
    }
}
@end
 
/* The main class of the application, the application's delegate */
@implementation SDLMain
 
- (IBAction) openHomepage:(id)sender
{
    (void) sender;
    [[NSWorkspace sharedWorkspace] openURL:[NSURL URLWithString:@"https://www.wesnoth.org/"]];
}
 
- (IBAction) openChangelog:(id)sender
{
    (void) sender;
    NSString* version = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleShortVersionString"];
    NSString* url = [NSString stringWithFormat:@"https://changelog.wesnoth.org/%@", version];
    [[NSWorkspace sharedWorkspace] openURL:[NSURL URLWithString:url]];
}
 
/* Called when the internal event loop has just started running */
- (void) applicationDidFinishLaunching: (NSNotification *) note
{
    (void) note;
    /* This makes SDL give events to Cocoa, so it can handle things like command+h to hide, etc. */
    setenv ("SDL_ENABLEAPPEVENTS", "1", 1);
    setenv ("SDL_VIDEO_ALLOW_SCREENSAVER", "1", 1);
 
    /* Set config files for pango and fontconfig, so the data they need can be found */
    setenv ("PANGO_RC_FILE", "./pangorc", 1);
    setenv ("PANGO_SYSCONFDIR", ".", 1);
    setenv ("PANGO_LIBDIR", ".", 1);
    setenv ("FONTCONFIG_PATH", "./fonts/", 1);
    setenv ("FONTCONFIG_FILE", "fonts.conf", 1);
 
    int status;
 
    /* Set the working directory to the .app's Resources directory */
    chdir([[[NSBundle mainBundle] resourcePath] fileSystemRepresentation]);
 
    /* Hand off to main application code */
    status = wesnoth_main(gArgs.size() - 1, gArgs.data());
 
    /* We're done, thank you for playing */
    exit(status);
}
@end
 
template<int sz>
bool str_eq(const char* str, const char(& cstr)[sz]) {
    return strncmp(str, cstr, sz) == 0;
}
 
#ifdef main
#  undef main
#endif
 
/* Main entry point to executable - should *not* be SDL_main! */
int main (int argc, char **argv)
{
    gArgs.push_back(argv[0]); // Program name
    for (int i = 1; i < argc; i++) {
        // Filter out debug arguments that XCode might pass
        if (str_eq(argv[i], "-ApplePersistenceIgnoreState")) {
            i++; // Skip the argument
            continue;
        }
        if (str_eq(argv[i], "-NSDocumentRevisionsDebugMode")) {
            i++; // Skip the argument
            continue;
        }
        // This is passed if launched by double-clicking
        if (strncmp(argv[i], "-psn", 4) == 0) {
            continue;
        }
        gArgs.push_back(argv[i]);
    }
    gArgs.push_back(nullptr);
 
    [WesnothSDLApplication sharedApplication];
 
    [[NSBundle mainBundle] loadNibNamed:@"SDLMain" owner:NSApp topLevelObjects:nil];
 
    [NSApp run];
    return 0;
}