87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
/* Copyright 2001-2003 by Norbert Freudemann, David Frese */
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#include "xlib.h"
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#define scx_extract_queued_mode(x) S48_EXTRACT_ENUM(x, "scx-queued-mode")
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s48_value scx_Events_Queued(s48_value display, s48_value mode) {
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int r = XEventsQueued(scx_extract_display(display),
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scx_extract_queued_mode(mode));
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return s48_enter_integer(r);
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}
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s48_value scx_Events_Pending(s48_value display) {
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return s48_enter_integer(XPending(scx_extract_display(display)));
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}
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s48_value scx_Next_Event(s48_value display) {
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XEvent e;
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XNextEvent(scx_extract_display(display), &e);
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return scx_enter_event(&e);
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}
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s48_value scx_Peek_Event(s48_value display) {
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XEvent e;
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XPeekEvent(scx_extract_display(display), &e);
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return scx_enter_event(&e);
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}
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s48_value scx_Get_Motion_Events(s48_value display, s48_value window,
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s48_value from, s48_value to) {
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int n,i;
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XTimeCoord *p = XGetMotionEvents(scx_extract_display(display),
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scx_extract_window(window),
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scx_extract_time(from),
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scx_extract_time(to),
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&n);
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s48_value l = S48_NULL, t = S48_FALSE;
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S48_DECLARE_GC_PROTECT(2);
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S48_GC_PROTECT_2(l, t);
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for (i = n-1; i >= 0; i--) {
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t = s48_cons(s48_enter_fixnum(p[i].x), s48_enter_fixnum(p[i].y));
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t = s48_cons(scx_enter_time(p[i].time), t);
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l = s48_cons(t, l);
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}
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XFree((char*)p);
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S48_GC_UNPROTECT();
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return l;
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}
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s48_value scx_Send_Event(s48_value display, s48_value window,
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s48_value propagate,
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s48_value event_mask, s48_value event) {
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XEvent e;
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scx_extract_event(event, &e);
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Status r = XSendEvent(scx_extract_display(display),
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scx_extract_window(window),
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S48_EXTRACT_BOOLEAN(propagate),
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scx_extract_event_mask(event_mask),
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&e);
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return r ? S48_TRUE : S48_FALSE;
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}
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s48_value scx_add_pending_channel(channel) {
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int socket_fd;
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S48_CHECK_CHANNEL(channel);
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socket_fd = S48_UNSAFE_EXTRACT_FIXNUM(S48_UNSAFE_CHANNEL_OS_INDEX(channel));
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if (! s48_add_pending_fd(socket_fd, 1)) // 1 for: yes, is input
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s48_raise_out_of_memory_error();
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return S48_UNSPECIFIC;
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}
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void scx_init_event(void) {
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S48_EXPORT_FUNCTION(scx_Events_Queued);
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S48_EXPORT_FUNCTION(scx_Events_Pending);
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S48_EXPORT_FUNCTION(scx_Next_Event);
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S48_EXPORT_FUNCTION(scx_Peek_Event);
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S48_EXPORT_FUNCTION(scx_Get_Motion_Events);
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S48_EXPORT_FUNCTION(scx_Send_Event);
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S48_EXPORT_FUNCTION(scx_add_pending_channel);
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}
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