games: auto-size windows to available screen; dmenu shows Sys menu from any app

src/games/snake.cpp

@@ -22,8 +22,7 @@
 #include <X11/keysym.h>
 #include <X11/Xatom.h>
 
-static const int WIN_W = 220;
-static const int WIN_H = 268;
+static const int TOPBAR = 24;
 static const int COLS = 24;
 static const int ROWS = 28;
 
@@ -86,8 +85,8 @@ static Window win;
 static GC gc;
 static Pixmap back;
 static int screen;
-static int winW = WIN_W, winH = WIN_H;
 static int cell, gx0, gy0, gw, gh;
+static int winW = 240, winH = 296;  // overridden at runtime from the actual screen
 
 // ---- colors (Nokia green monochrome) ----
 static unsigned long C_BG, C_FG, C_HEAD, C_FOOD, C_DIM;
@@ -215,9 +214,9 @@ static void render() {
   XFillRectangle(dpy, back, gc, 0, 0, winW, winH);
 
   // playfield border (single clean frame around the grid)
+  // border framing the whole window (adapts to the actual screen size)
   XSetForeground(dpy, gc, C_DIM);
-  XDrawRectangle(dpy, back, gc, gx0 - 1, gy0 - 1, gw + 2, gh + 2);
-
+  XDrawRectangle(dpy, back, gc, 2, 2, winW - 4, winH - 4);
   // food
   if (foodx >= 0) {
     XSetForeground(dpy, gc, C_FOOD);
@@ -286,6 +285,12 @@ static void setup_window() {
   dpy = XOpenDisplay(nullptr);
   if (!dpy) { fprintf(stderr, "snake: cannot open display\n"); exit(1); }
   screen = DefaultScreen(dpy);
+  int sw = DisplayWidth(dpy, screen);
+  int scrH = DisplayHeight(dpy, screen);
+  winW = sw;
+  winH = scrH - TOPBAR;          // fill the area below the status bar
+  if (winW < 96) winW = 96;
+  if (winH < 96) winH = 96;
   win = XCreateWindow(dpy, RootWindow(dpy, screen), 0, 0, winW, winH, 0,
                        CopyFromParent, InputOutput, CopyFromParent, 0, nullptr);
   XStoreName(dpy, win, "Snake");

src/games/tetris.cpp

@@ -23,8 +23,7 @@
 #include <X11/keysym.h>
 #include <X11/Xatom.h>
 
-static const int WIN_W = 224;
-static const int WIN_H = 292;
+static const int TOPBAR = 24;
 static const int PCOLS = 10;
 static const int PROWS = 20;
 static const int CELL = 14;
@@ -87,7 +86,7 @@ static Window win;
 static GC gc;
 static Pixmap back;
 static int screen;
-static int winW = WIN_W, winH = WIN_H;
+static int winW = 240, winH = 296;  // overridden at runtime from the actual screen
 static unsigned long C_BG, C_FG, C_HEAD, C_FOOD, C_DIM;
 
 // ---- tetromino definitions (state 0 within a 4x4 box) ----
@@ -328,6 +327,12 @@ static void setup_window() {
   dpy = XOpenDisplay(nullptr);
   if (!dpy) { fprintf(stderr, "tetris: cannot open display\n"); exit(1); }
   screen = DefaultScreen(dpy);
+  int sw = DisplayWidth(dpy, screen);
+  int scrH = DisplayHeight(dpy, screen);
+  winW = sw;
+  winH = scrH - TOPBAR;          // fill the area below the status bar
+  if (winW < 96) winW = 96;
+  if (winH < 96) winH = 96;
   win = XCreateWindow(dpy, RootWindow(dpy, screen), 0, 0, winW, winH, 0,
                        CopyFromParent, InputOutput, CopyFromParent, 0, nullptr);
   XStoreName(dpy, win, "Tetris");

src/sxmo-dmenu/dmenu.c

@@ -1649,16 +1649,12 @@ open_builtin_menu(const char *menu_name, int keep_idx)
     if (!cls[0] || strcmp(cls, "sys") == 0) {
       menu_name = "sys";
     } else if (strcmp(cls, "st") == 0 || strncmp(cls, "st-", 3) == 0) {
-      if (strstr(ttl, "nano"))
-        menu_name = "nano";
-      else
-        menu_name = "st";
-    } else {
-      hide_menu();
-      menu_mode = MODE_NONE;
-      snprintf(cmd, sizeof(cmd), "sxmo_appmenu.sh --fallback '%s' '%s'", cls, ttl);
-      spawn_detached_sh(cmd);
-      return;
+      /* launched from a terminal: also show the exact same Sys menu */
+      menu_name = "sys";
+    }
+    else {
+      /* launched from an app: show the exact same Sys menu as the desktop */
+      menu_name = "sys";
     }
   }