Remove platform specific code from test apps

Test programs that open files don't use platform specific code.
They don't open files from macOS bundles.
Support files must either be in the current working directory or
given on the command line.
On macOS this requires a full path when using bundles.

test/browser.cxx

@@ -160,42 +160,15 @@ void wtype_cb(Fl_Widget *, void *) {
 
 int main(int argc, char **argv) {
   int i;
-  if (!Fl::args(argc,argv,i)) Fl::fatal(Fl::help);
-  const char* fname = (i < argc) ? argv[i] : "browser.cxx";
-  Fl_Double_Window window(720,520,fname);
-  browser = new Fl_Select_Browser(0,0,window.w(),350,0);
+  if (!Fl::args(argc, argv, i)) Fl::fatal(Fl::help);
+  const char *fname = (i < argc) ? argv[i] : "browser.cxx";
+  Fl_Double_Window window(720, 520, fname);
+  browser = new Fl_Select_Browser(0, 0, window.w(), 350, 0);
   browser->type(FL_MULTI_BROWSER);
-  //browser->type(FL_HOLD_BROWSER);
-  //browser->color(42);
   browser->callback(b_cb);
-  // browser->scrollbar_right();
-  //browser->has_scrollbar(Fl_Browser::BOTH_ALWAYS);
-  //browser->format_char('#');
   if (!browser->load(fname)) {
-    int done = 0;
-#ifdef _MSC_VER
-    // if 'browser' was started from the VisualC environment in Win32,
-    // the current directory is set to the environment itself,
-    // so we need to correct the browser file path
-    if ( i == argc )
-    {
-      fname = "../test/browser.cxx";
-      done = browser->load(fname);
-    }
-#elif defined(__APPLE__)
-    char buf[2048];
-    strcpy(buf, argv[0]);
-    char *slash = strrchr(buf, '/');
-    if (slash) {
-      strcpy(slash, "/../../../browser.cxx");
-    }
-    done = browser->load(buf);
-#endif
-    if ( !done )
-    {
-      fl_message("Can't load %s, %s\n", fname, strerror(errno));
-      exit(1);
-    }
+    fl_message("Can't load '%s'\n%s\n", fname, strerror(errno));
+    exit(1);
   }
   browser->position(0);
 

test/colbrowser.cxx

@@ -47,29 +47,20 @@ static Fl_Value_Slider *rs, *gs, *bs;
 static char dbname[FL_PATH_MAX];
 
 static void create_form_cl(void);
-static int load_browser(char *);
+static int load_browser(const char *);
 
 typedef struct { int r, g, b; } RGBdb;
 
 static RGBdb rgbdb[MAX_RGB];
 
 
-int main(int argc, char *argv[])
-{
-  Fl::args(argc, argv);
+int main(int argc, char *argv[]) {
+  int i;
+  if (!Fl::args(argc, argv, i)) Fl::fatal(Fl::help);
+  const char *dbname = (i < argc) ? argv[i] : "rgb.txt";
 
   create_form_cl();
 
-#ifdef __APPLE__
-  // Bundled apps do not set the current directory
-  strcpy(dbname, argv[0]);
-  char *slash = strrchr(dbname, '/');
-  if (slash)
-    strcpy(slash, "/../Resources/rgb.txt");
-#else
-  strcpy(dbname, "rgb.txt");
-#endif
-
   if (load_browser(dbname))
     dbobj->label(dbname);
   else
@@ -139,15 +130,15 @@ static int read_entry(FILE * fp, int *r, int *g, int *b, char *name)
 }
 
 
-static int load_browser(char *fname)
+static int load_browser(const char *fname)
 {
   FILE *fp;
   RGBdb *db = rgbdb, *dbs = db + MAX_RGB;
   int r, g, b,  lr  = -1 , lg = -1, lb = -1;
   char name[256], buf[300];
 
   if (!(fp = fl_fopen(fname, "r"))) {
-    fl_alert("%s\n%s\n%s","Load", fname, "Can't open");
+    fl_alert("Load:\nCan't open '%s'", fname);
     return 0;
   }
 

test/demo.menu

@@ -61,7 +61,7 @@
 @main:Fluid\n(UI design tool):fluid valuators.fl
 
 @main:Cool\nDemos...:@e
-	@e:X Color\nBrowser:colbrowser
+	@e:X Color\nBrowser:colbrowser rgb.txt
 	@e:Mandelbrot:mandelbrot
 	@e:Fractals:fractals
 	@e:Puzzle:glpuzzle

test/help_dialog.cxx

@@ -36,27 +36,11 @@ main(int  argc,                 // I - Number of command-line arguments
      char *argv[])              // I - Command-line arguments
 {
   Fl_Help_Dialog *help = new Fl_Help_Dialog;
-  char htmlname[FL_PATH_MAX];
-#ifdef __APPLE__
-  int i = 1;
-  while (i < argc && Fl::arg(argc, argv, i)) i++;
-  if (i < argc) {
-    strcpy(htmlname, argv[i]);
-  } else {
-    // bundled apps do not set the current directory
-    strcpy(htmlname, argv[0]);
-    char *slash = strrchr(htmlname, '/');
-    if (slash) strcpy(slash, "/../Resources/help_dialog.html");
-  }
-#else
-  if (argc > 1) {
-    strcpy(htmlname, argv[1]);
-  } else {
-    strcpy(htmlname, "help_dialog.html");
-  }
-#endif
+  int i;
+  if (!Fl::args(argc, argv, i)) Fl::fatal(Fl::help);
+  const char *fname = (i < argc) ? argv[i] : "help_dialog.html";
 
-  help->load(htmlname); // TODO: add error check (when load() returns int instead of void)
+  help->load(fname); // TODO: add error check (when load() returns int instead of void)
 
   help->show(1, argv);