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#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "button.hh"
Button::Button(SwWindow *window)
: SwWidget(window),
_normal(0), _normal_mask(0), _lit(0), _lit_mask(0),
_state(0), _flash_alarm(this)
{
}
bool
Button::set_normal(Gif_Stream *gfs, const char *name)
{
Gif_Image *gfi = Gif_GetNamedImage(gfs, name);
if (!gfi) return 0;
Gif_XContext *gifx = get_gif_x_context();
_normal = Gif_XImage(gifx, gfs, gfi);
_normal_mask = Gif_XMask(gifx, gfs, gfi);
set_size(Gif_ImageWidth(gfi), Gif_ImageHeight(gfi));
return 1;
}
bool
Button::set_lit(Gif_Stream *gfs, const char *name)
{
Gif_Image *gfi = Gif_GetNamedImage(gfs, name);
if (!gfi) return 0;
Gif_XContext *gifx = get_gif_x_context();
_lit = Gif_XImage(gifx, gfs, gfi);
_lit_mask = Gif_XMask(gifx, gfs, gfi);
return 1;
}
void
Button::change_state(int new_state)
{
int old_state = _state;
_state = new_state;
if ((old_state == 0) != (new_state == 0))
draw();
}
bool
Button::handle_track_event(XEvent *e)
{
switch (e->type) {
case ButtonRelease:
return (e->xbutton.button != 1);
case MotionNotify:
{
int x1 = x(), x2 = x() + width(), y1 = y(), y2 = y() + height();
while (XCheckTypedEvent(display(), MotionNotify, e))
/* nada */;
int xm = e->xmotion.x;
int ym = e->xmotion.y;
bool should_light = xm >= x1 && ym >= y1 && xm < x2 && ym < y2;
if (should_light != _state) {
_state = should_light;
draw();
}
return true;
}
default:
return true;
}
}
bool
Button::track(Time time)
{
if (XGrabPointer(display(), window(), False,
ButtonMotionMask | ButtonReleaseMask | OwnerGrabButtonMask,
GrabModeAsync, GrabModeSync, None, None, time)
!= GrabSuccess)
return 0;
change_state(1);
_flash_alarm.kill();
XEvent e;
bool more = true;
while (more) {
XNextEvent(display(), &e);
more = handle_track_event(&e);
}
bool was_lit = _state == 1;
change_state(0);
XUngrabPointer(display(), CurrentTime);
XFlush(display());
while (XCheckMaskEvent(display(), ButtonReleaseMask | ButtonPressMask, &e))
/* nada */;
return was_lit;
}
void
Button::alarm()
{
if (_state == 2)
change_state(0);
}
void
Button::flash()
{
if (_state != 1) {
change_state(2);
_flash_alarm.schedule(Moment::now() + Moment(0, 100000));
}
}
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