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Add networks unit 9: layered models and protocols with quiz.
Co-authored-by: Cursor <cursoragent@cursor.com>
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pepaskopec-blip
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commit
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4 changed files with 203 additions and 2 deletions
180
net.c
180
net.c
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@ -12,6 +12,7 @@ NetLesson net_lessons[NET_LESSONS] = {
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{ .n_slides = NET6_SLIDES, .unit_page = "netunit6", .ex_page = "netex6" },
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{ .n_slides = NET7_SLIDES, .unit_page = "netunit7", .ex_page = "netex7" },
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{ .n_slides = NET8_SLIDES, .unit_page = "netunit8", .ex_page = "netex8" },
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{ .n_slides = NET9_SLIDES, .unit_page = "netunit9", .ex_page = "netex9" },
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};
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void net_paragraph(GtkWidget *box, const char *text) {
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@ -439,7 +440,7 @@ void net_add_node(GtkFixed *fixed, int index) {
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char *text;
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static const char *unit_keys[NET_LESSONS] = {
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"net_unit1", "net_unit2", "net_unit3", "net_unit4", "net_unit5",
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"net_unit6", "net_unit7", "net_unit8"
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"net_unit6", "net_unit7", "net_unit8", "net_unit9"
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};
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card = gtk_button_new();
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@ -1051,6 +1052,50 @@ GtkWidget *build_net_unit8_page(void) {
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return build_net_unit_page(&net_lessons[7], "net_unit8", slides, NET8_SLIDES);
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}
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GtkWidget *build_net_unit9_page(void) {
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static const NetSlide slides[NET9_SLIDES] = {
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{
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"1 / 4 • Proč", "Standardizace a dekompozice",
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NULL,
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{
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"Standardizace zajišťuje kompatibilitu mezi výrobci.",
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"Dekompozice: rozklad složitého problému přenosu na vrstvy.",
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NULL,
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},
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},
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{
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"2 / 4 • Vrstvy", "Komunikace mezi vrstvami",
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"Tip: SAP = Service Access Point",
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{
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"Vrstvy komunikují jen se sousedy přes rozhraní (SAP).",
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NULL,
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},
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},
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{
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"3 / 4 • Protokol", "Pravidla komunikace",
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NULL,
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{
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"Protokol: pravidla komunikace mezi stejnými vrstvami",
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"na různých uzlech.",
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NULL,
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},
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},
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{
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"4 / 4 • Jednotky", "Hlavičky a PDU",
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NULL,
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{
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"Každá vrstva přidá k datům hlavičku (header).",
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"Rámec – linková vrstva.",
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"Paket – síťová vrstva.",
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"Segment – transportní vrstva.",
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NULL,
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},
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},
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};
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return build_net_unit_page(&net_lessons[8], "net_unit9", slides, NET9_SLIDES);
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}
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/* Solutions below are the canonical "largest subnet first, in order A–D"
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* allocation. Scenario 3 does not fit into a /24 as written, which is why
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* its "solution" explains that instead. */
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@ -2377,3 +2422,136 @@ GtkWidget *build_net_unit8_exercise_page(void) {
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return page;
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}
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/* ---- Unit 9: layered models and protocols quiz ---------------------- */
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const ChoiceQ net9_qs[] = {
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{"Standardizace v sítích především:",
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{"Zvyšuje nekompatibilitu", "Zajišťuje kompatibilitu mezi výrobci",
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"Ruší protokoly", "Nahrazuje kabely"}, 4, 1},
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{"Dekompozice znamená:",
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{"Spojení všeho do jedné vrstvy",
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"Rozklad složitého přenosu na vrstvy",
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"Jen FDM", "Jen CRC"}, 4, 1},
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{"Vrstvy komunikují:",
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{"Se všemi vrstvami najednou", "Jen se sousedy přes rozhraní (SAP)",
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"Jen přes satelit", "Jen bez protokolu"}, 4, 1},
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{"Protokol je:",
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{"Fyzický kabel", "Pravidla komunikace mezi stejnými vrstvami",
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"Jen amplituda signálu", "Jen tiskový server"}, 4, 1},
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{"Každá vrstva k datům typicky přidá:",
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{"Jen stop-bit", "Hlavičku (header)", "Jen šířku pásma",
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"Jen mainframe"}, 4, 1},
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{"Jednotka linkové vrstvy se nazývá:",
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{"Segment", "Paket", "Rámec", "Baud"}, 4, 2},
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{"Jednotka síťové vrstvy se nazývá:",
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{"Rámec", "Paket", "Segment", "Simplex"}, 4, 1},
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{"Jednotka transportní vrstvy se nazývá:",
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{"Rámec", "Paket", "Segment", "Trunk"}, 4, 2},
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};
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const char *net9_hints[] = {
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"Standardizace zajišťuje kompatibilitu mezi výrobci",
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"Dekompozice rozkládá přenos na jednotlivé vrstvy",
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"Vrstvy komunikují jen se sousedy přes rozhraní SAP",
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"Protokol = pravidla mezi stejnými vrstvami na různých uzlech",
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"Každá vrstva přidává k datům hlavičku (header)",
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"Rámec = linková, paket = síťová, segment = transportní",
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"Rámec = linková, paket = síťová, segment = transportní",
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"Rámec = linková, paket = síťová, segment = transportní",
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};
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GtkWidget *build_net_unit9_exercise_page(void) {
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GtkWidget *page;
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GtkWidget *scroll;
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GtkWidget *body;
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GtkWidget *check;
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GtkWidget *btns;
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NetMcqCtx *ctx = g_new0(NetMcqCtx, 1);
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int n = (int)G_N_ELEMENTS(net9_qs);
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int n_opts = net9_qs[0].n_options;
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page = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
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gtk_widget_set_margin_start(page, 32);
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gtk_widget_set_margin_end(page, 32);
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gtk_widget_set_margin_top(page, 24);
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gtk_widget_set_margin_bottom(page, 24);
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gtk_box_append(GTK_BOX(page),
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top_bar("netunit9", "net_ex9_title", NULL));
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scroll = gtk_scrolled_window_new();
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gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
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GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
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gtk_widget_set_vexpand(scroll, TRUE);
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gtk_widget_set_margin_top(scroll, 12);
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gtk_box_append(GTK_BOX(page), scroll);
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body = gtk_box_new(GTK_ORIENTATION_VERTICAL, 10);
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gtk_scrolled_window_set_child(GTK_SCROLLED_WINDOW(scroll), body);
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net_heading(body, "Kvíz k vrstevnatým modelům a protokolům");
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net_paragraph(body,
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"Vyberte u každé otázky jednu správnou odpověď "
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"a stiskněte Zkontrolovat.");
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ctx->qs = net9_qs;
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ctx->n = n;
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ctx->n_opts = n_opts;
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ctx->toggles = g_new0(GtkToggleButton *, n * n_opts);
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ctx->hints = g_new0(GtkWidget *, n);
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for (int i = 0; i < n; i++) {
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GtkWidget *prompt;
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GtkWidget *row;
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GtkToggleButton *first = NULL;
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char *qtext;
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qtext = g_strdup_printf("%d.) %s", i + 1, net9_qs[i].prompt);
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prompt = gtk_label_new(qtext);
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g_free(qtext);
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gtk_widget_set_halign(prompt, GTK_ALIGN_START);
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gtk_label_set_wrap(GTK_LABEL(prompt), TRUE);
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gtk_widget_add_css_class(prompt, "ex-prompt");
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gtk_widget_set_margin_top(prompt, 8);
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gtk_box_append(GTK_BOX(body), prompt);
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row = gtk_flow_box_new();
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gtk_flow_box_set_selection_mode(GTK_FLOW_BOX(row), GTK_SELECTION_NONE);
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gtk_flow_box_set_min_children_per_line(GTK_FLOW_BOX(row), n_opts);
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gtk_flow_box_set_max_children_per_line(GTK_FLOW_BOX(row), n_opts);
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gtk_widget_set_halign(row, GTK_ALIGN_START);
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gtk_box_append(GTK_BOX(body), row);
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for (int o = 0; o < n_opts; o++) {
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GtkWidget *tb =
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gtk_toggle_button_new_with_label(net9_qs[i].options[o]);
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gtk_widget_add_css_class(tb, "pill");
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gtk_toggle_button_set_group(GTK_TOGGLE_BUTTON(tb), first);
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if (!first)
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first = GTK_TOGGLE_BUTTON(tb);
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gtk_flow_box_append(GTK_FLOW_BOX(row), tb);
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ctx->toggles[i * n_opts + o] = GTK_TOGGLE_BUTTON(tb);
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}
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ctx->hints[i] = meaning_add(body, net9_hints[i]);
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}
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btns = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 8);
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gtk_widget_set_margin_top(btns, 12);
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gtk_box_append(GTK_BOX(body), btns);
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check = gtk_button_new();
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i18n_bind(check, "check", 1);
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gtk_widget_add_css_class(check, "pill");
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gtk_widget_set_halign(check, GTK_ALIGN_START);
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gtk_box_append(GTK_BOX(btns), check);
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g_signal_connect(check, "clicked", G_CALLBACK(net_mcq_check), ctx);
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ctx->feedback = gtk_label_new("");
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gtk_widget_set_halign(ctx->feedback, GTK_ALIGN_START);
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gtk_box_append(GTK_BOX(body), ctx->feedback);
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return page;
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}
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