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Linux: Reimplemented undecorated flag through use of the obscure Motif window manager hint instead of the override_redirect flag

This commit is contained in:
Elias Naur 2004-08-23 11:33:57 +00:00
parent 9cd4948517
commit 33285cd06a
1 changed files with 19 additions and 1 deletions
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20
src/native/linux/org_lwjgl_opengl_Display.cpp
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@ -56,6 +56,16 @@
#define USEGLX13 extgl_Extensions.GLX13
#define ERR_MSG_SIZE 1024
typedef struct {
unsigned long flags;
unsigned long functions;
unsigned long decorations;
long input_mode;
unsigned long status;
} MotifWmHints;
#define MWM_HINTS_DECORATIONS (1L << 1)
typedef enum {FULLSCREEN_LEGACY, FULLSCREEN_NETWM, WINDOWED} window_mode;
static GLXContext context = NULL; // OpenGL rendering context
@ -334,7 +344,7 @@ static bool isNetWMFullscreenSupported() {
}
static bool createWindow(JNIEnv* env, int width, int height) {
// bool undecorated = getBooleanProperty(env, "org.lwjgl.opengl.Window.undecorated");
bool undecorated = getBooleanProperty(env, "org.lwjgl.opengl.Window.undecorated");
dirty = true;
focused = true;
minimized = false;
@ -368,6 +378,14 @@ static bool createWindow(JNIEnv* env, int width, int height) {
}
printfDebug("Created window\n");
current_win = win;
if (undecorated && current_window_mode == WINDOWED) {
// Use Motif decoration hint property and hope the window manager respects them
Atom motif_hints_atom = XInternAtom(getDisplay(), "_MOTIF_WM_HINTS", False);
MotifWmHints motif_hints;
motif_hints.flags = MWM_HINTS_DECORATIONS;
motif_hints.decorations = 0;
XChangeProperty (getDisplay(), getCurrentWindow(), motif_hints_atom, motif_hints_atom, 32, PropModeReplace, (unsigned char *)&motif_hints, sizeof(MotifWmHints)/sizeof(long));
}
XSizeHints * size_hints = XAllocSizeHints();
size_hints->flags = PMinSize | PMaxSize;
size_hints->min_width = width;