Date: Sun, 1 Sep 2002 21:27:54 -0400 (EDT)
From: "Ryan C. Gordon"
Subject: [SDL] Minor X11 hack:
Here's a patch to center a newly-created, non-fullscreen X11 window.
While this may or may not be suitable for adding to SDL officially, I
didn't want to put any Xlib dependencies in my code directly.
To use:
- Apply patch/rebuild.
- export SDL_WINDOW_POS=center
- Call SDL_SetVideoMode as needed.
(Ideally, this could be expanded to handle other commands like
SDL_WINDOW_POS=20x190, etc, and could be implemented for other targets,
but this is really a hack to avoid API changes).
--- a/src/video/x11/SDL_x11video.c Sun Sep 01 19:34:01 2002 +0000
+++ b/src/video/x11/SDL_x11video.c Mon Sep 02 15:58:29 2002 +0000
@@ -870,6 +870,18 @@
screen->flags |= SDL_FULLSCREEN;
X11_EnterFullScreen(this);
} else {
+ /* Position standalone window based on user request. --ryan. */
+ const char *envr = getenv("SDL_WINDOW_POS");
+ if (envr != NULL) {
+ int xscreen = DefaultScreen(SDL_Display);
+ if (strcmp(envr, "center") == 0) {
+ int disw = DisplayWidth(SDL_Display, xscreen);
+ int dish = DisplayHeight(SDL_Display, xscreen);
+ int centerx = (disw - current_w) / 2;
+ int centery = (dish - current_h) / 2;
+ XMoveWindow(SDL_Display, WMwindow, centerx, centery);
+ }
+ }
screen->flags &= ~SDL_FULLSCREEN;
}
}