void
rtb_elem_draw(struct rtb_element *self, int clear_first)
{
if (self->visibility == RTB_FULLY_OBSCURED)
return;
rtb_render_push(self);
if (clear_first)
rtb_render_clear(self);
self->draw(self);
LAYOUT_DEBUG_DRAW_BOX(self);
rtb_render_pop(self);
}
int
rtb_window_draw(struct rtb_window *self, int force_redraw)
{
const struct rtb_style_property_definition *prop;
struct rtb_window_event ev;
if (self->state == RTB_STATE_UNATTACHED
|| self->visibility == RTB_FULLY_OBSCURED)
return 0;
ev.type = RTB_FRAME_START;
ev.source = RTB_EVENT_GENUINE;
ev.window = self;
rtb_dispatch_raw(RTB_ELEMENT(self), RTB_EVENT(&ev));
if (!self->dirty || force_redraw)
return 0;
glViewport(0, 0, self->w, self->h);
prop = rtb_style_query_prop(RTB_ELEMENT(self),
"background-color", RTB_STYLE_PROP_COLOR, 1);
glEnable(GL_DITHER);
glEnable(GL_BLEND);
glEnable(GL_SCISSOR_TEST);
glClearColor(
prop->color.r,
prop->color.g,
prop->color.b,
prop->color.a);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
rtb_render_push(RTB_ELEMENT(self));
self->draw(RTB_ELEMENT(self));
rtb_render_pop(RTB_ELEMENT(self));
self->dirty = 0;
ev.type = RTB_FRAME_END;
rtb_dispatch_raw(RTB_ELEMENT(self), RTB_EVENT(&ev));
return 1;
}