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#include <glib.h>
#include "state.h"
State *state_create(Window *win, Drawer *draw)
{
State *state = g_malloc(sizeof(State));
g_assert_nonnull(state);
state->win = win;
state->draw = draw;
state->btns = NULL;
state->id = 0;
return state;
}
void state_add_button(State *state, Button *btn)
{
state->btns = g_list_append(state->btns, btn);
}
void state_remove_button(State *state, Button *btn)
{
state->btns = g_list_remove(state->btns, btn);
}
static gboolean redraw_handler(gpointer data)
{
State *state = data;
if (state->relayout) {
draw_compute_layout(state->draw, state->win, state->btns);
state->relayout = false;
}
draw_paint(state->draw, state->win);
state->id = 0;
return G_SOURCE_REMOVE;
}
void state_redraw(State *state, bool changed_layout)
{
if (state->id != 0) {
if (!changed_layout || state->relayout)
return;
// If we should relayout override old redraw
g_source_remove(state->id);
}
state->relayout = changed_layout;
state->id = g_idle_add_full(G_PRIORITY_HIGH_IDLE, redraw_handler, state, NULL);
}
static gint align_compare(gconstpointer a, gconstpointer b)
{
PangoAlignment a_align = ((Button *)a)->align;
PangoAlignment b_align = ((Button *)b)->align;
if (a_align < b_align) return -1;
if (a_align > b_align) return 1;
return 0;
}
void state_order_button(State *state)
{
state->btns = g_list_sort(state->btns, align_compare);
}
void state_destroy(State *state)
{
g_list_free_full(state->btns, (void *)button_destroy);
g_free(state);
}
// vim: ts=4 sw=4 et
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