int
rtb_button_init(struct rtb_button *self)
{
if (RTB_SUBCLASS(RTB_ELEMENT(self), rtb_elem_init, &super))
return -1;
rtb_label_init(&self->label);
rtb_elem_add_child(RTB_ELEMENT(self), RTB_ELEMENT(&self->label),
RTB_ADD_HEAD);
self->label.align = RTB_ALIGN_MIDDLE;
self->outer_pad.x =
self->outer_pad.y = 0.f;
self->on_event = on_event;
self->attached = attached;
self->layout_cb = rtb_layout_hpack_center;
self->size_cb = rtb_size_hfit_children;
self->reflow = reflow;
return 0;
}
struct rtb_window *
rtb_window_open_under(struct rutabaga *r, intptr_t parent,
int w, int h, const char *title)
{
struct rtb_style_data stdata;
struct rtb_window *self;
assert(r);
assert(h > 0);
assert(w > 0);
assert(!r->win);
self = window_impl_open(r, w, h, title, parent);
if (!self)
goto err_window_impl;
init_gl();
if (RTB_SUBCLASS(RTB_SURFACE(self), rtb_surface_init, &super))
goto err_surface_init;
self->w = w;
self->h = h;
self->surface = RTB_SURFACE(self);
stdata = rtb_style_get_defaults();
self->style_list = stdata.style;
self->style_fonts = calloc(stdata.nfonts, sizeof(*self->style_fonts));
if (shaders_init(self))
goto err_shaders;
if (ibos_init(self))
goto err_ibos;
if (rtb_font_manager_init(&self->font_manager,
self->dpi.x, self->dpi.y))
goto err_font;
rtb_elem_set_layout(RTB_ELEMENT(self), rtb_layout_vpack_top);
self->on_event = win_event;
self->mark_dirty = mark_dirty;
self->attached = attached;
self->flags = RTB_ELEM_CLICK_FOCUS;
/* for core profiles */
glGenVertexArrays(1, &self->vao);
glBindVertexArray(self->vao);
self->rtb = r;
r->win = self;
self->mouse.current_cursor = RTB_MOUSE_CURSOR_DEFAULT;
return self;
err_font:
ibos_fini(self);
err_ibos:
shaders_fini(self);
err_shaders:
err_surface_init:
window_impl_close(self);
err_window_impl:
return NULL;
}