Add Technické vybavení unit 1: von Neumann architecture with quiz.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
pepaskopec-blip 2026-09-11 20:48:48 +02:00
commit 47831c512b
10 changed files with 976 additions and 5 deletions

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hw.c Normal file
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#include "maturita.h"
/* ---- Technical equipment (Technické vybavení) --------------------- */
NetLesson hw_lessons[HW_LESSONS] = {
{ .n_slides = HW_SLIDES, .unit_page = "hwunit1", .ex_page = "hwex1" },
};
void hw_rail_theme_reset(void);
void refresh_hw_completion_ui(void);
GtkWidget *hw_scroll;
GtkWidget *hw_fixed;
GtkWidget *hw_rail;
GtkWidget *hw_nodes[HW_UNITS];
GtkWidget *hw_labels[HW_UNITS];
double hw_cx[HW_UNITS];
double hw_cy[HW_UNITS];
int hw_cols = 1;
int hw_rows = 1;
int hw_cw = (int)(2.0 * ROAD_MX + (HW_UNITS - 1) * PATH_SPAC);
int hw_ch = (int)(2.0 * ROAD_MY);
guint hw_idle;
double hw_last_avail = -1.0;
int hw_last_cols = -1;
int hw_last_rows = -1;
int hw_last_cw = -1;
int hw_last_ch = -1;
cairo_surface_t *hw_rail_cache;
int hw_cache_w;
int hw_cache_h;
void hw_point(double t, double *ox, double *oy) {
int k = (int)t;
double u = t - (double)k;
double u2, u3;
double p0x, p0y, p1x, p1y, p2x, p2y, p3x, p3y;
if (k < 0) { k = 0; u = 0.0; }
if (k >= HW_UNITS - 1) { k = HW_UNITS - 2; u = 1.0; }
p1x = hw_cx[k]; p1y = hw_cy[k];
p2x = hw_cx[k + 1]; p2y = hw_cy[k + 1];
if (k - 1 >= 0) { p0x = hw_cx[k - 1]; p0y = hw_cy[k - 1]; }
else { p0x = p1x - (p2x - p1x); p0y = p1y - (p2y - p1y); }
if (k + 2 < HW_UNITS) { p3x = hw_cx[k + 2]; p3y = hw_cy[k + 2]; }
else { p3x = p2x + (p2x - p1x); p3y = p2y + (p2y - p1y); }
u2 = u * u;
u3 = u2 * u;
*ox = 0.5 * (2.0 * p1x + (-p0x + p2x) * u
+ (2.0 * p0x - 5.0 * p1x + 4.0 * p2x - p3x) * u2
+ (-p0x + 3.0 * p1x - 3.0 * p2x + p3x) * u3);
*oy = 0.5 * (2.0 * p1y + (-p0y + p2y) * u
+ (2.0 * p0y - 5.0 * p1y + 4.0 * p2y - p3y) * u2
+ (-p0y + 3.0 * p1y - 3.0 * p2y + p3y) * u3);
}
void hw_path(cairo_t *cr, double t0, double t1) {
const double steps_per_unit = 24.0;
int n = (int)((t1 - t0) * steps_per_unit);
double x, y;
int s;
if (n < 1)
n = 1;
hw_point(t0, &x, &y);
cairo_move_to(cr, x, y);
for (s = 1; s <= n; s++) {
hw_point(t0 + (t1 - t0) * (double)s / (double)n, &x, &y);
cairo_line_to(cr, x, y);
}
}
void hw_geometry(double avail) {
const double phase = 2.0 * G_PI * 1.7 / (double)(HW_UNITS - 1);
int rows;
int r, c, i;
for (rows = 1; rows <= HW_UNITS; rows++) {
int cols = (HW_UNITS + rows - 1) / rows;
if (2.0 * ROAD_MX + (cols - 1) * PATH_SPAC <= avail + 1.0)
break;
}
if (rows > HW_UNITS)
rows = HW_UNITS;
hw_rows = rows;
hw_cols = (HW_UNITS + rows - 1) / rows;
if (hw_cols < 1)
hw_cols = 1;
hw_cw = (int)(2.0 * ROAD_MX + (hw_cols - 1) * PATH_SPAC);
hw_ch = (int)(2.0 * ROAD_MY + (rows - 1) * ROAD_GAP);
for (r = 0; r < rows; r++) {
int base = r * hw_cols;
int len = MIN(hw_cols, HW_UNITS - base);
int fwd = (r % 2) == 0;
for (c = 0; c < len; c++) {
i = base + c;
int cc = fwd ? c : (hw_cols - 1 - c);
hw_cx[i] = ROAD_MX + cc * PATH_SPAC;
hw_cy[i] = ROAD_MY + r * ROAD_GAP
+ ROAD_WAVE * sin((double)i * phase);
}
}
}
void hw_apply_layout(void) {
if (!hw_fixed)
return;
if (hw_cols == hw_last_cols && hw_rows == hw_last_rows &&
hw_cw == hw_last_cw && hw_ch == hw_last_ch)
return;
hw_last_cols = hw_cols;
hw_last_rows = hw_rows;
hw_last_cw = hw_cw;
hw_last_ch = hw_ch;
if (hw_rail_cache) {
cairo_surface_destroy(hw_rail_cache);
hw_rail_cache = NULL;
}
for (int i = 0; i < HW_UNITS; i++) {
if (!hw_nodes[i] || !hw_labels[i])
continue;
gtk_fixed_move(GTK_FIXED(hw_fixed), hw_nodes[i],
(int)(hw_cx[i] - NODE_SIZE / 2.0),
(int)(hw_cy[i] - NODE_SIZE / 2.0));
gtk_fixed_move(GTK_FIXED(hw_fixed), hw_labels[i],
(int)(hw_cx[i] - (PATH_SPAC - 20.0) / 2.0),
(int)(hw_cy[i] + NODE_SIZE / 2.0 + 10.0));
}
gtk_widget_set_size_request(hw_fixed, hw_cw, hw_ch);
gtk_widget_set_size_request(hw_rail, hw_cw, hw_ch);
gtk_fixed_move(GTK_FIXED(hw_fixed), hw_rail, 0, 0);
gtk_widget_queue_draw(hw_rail);
}
void hw_relayout(void) {
GtkAdjustment *hadj;
double avail;
if (!hw_scroll)
return;
hadj = gtk_scrolled_window_get_hadjustment(
GTK_SCROLLED_WINDOW(hw_scroll));
avail = gtk_adjustment_get_page_size(hadj);
if (avail < 1.0)
return;
if (fabs(avail - hw_last_avail) < 1.0)
return;
hw_last_avail = avail;
hw_geometry(avail);
hw_apply_layout();
}
gboolean hw_relayout_idle(gpointer data) {
(void)data;
hw_idle = 0;
hw_relayout();
return G_SOURCE_REMOVE;
}
void hw_relayout_later(void) {
if (hw_idle == 0)
hw_idle = g_idle_add(hw_relayout_idle, NULL);
}
void hw_adjust_notify(GtkAdjustment *adj, GParamSpec *ps,
gpointer data) {
(void)adj;
(void)ps;
(void)data;
hw_relayout_later();
}
void hw_render_rail_to(cairo_t *cr) {
const double t_end = (double)(HW_UNITS - 1);
const Rgb mauve = color_from_hex(app_theme.accent);
const Rgb rail = color_from_hex(app_theme.rail);
const Rgb muted = color_from_hex(app_theme.subtext);
double hx, hy;
cairo_set_operator(cr, CAIRO_OPERATOR_CLEAR);
cairo_paint(cr);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
cairo_set_line_join(cr, CAIRO_LINE_JOIN_ROUND);
hw_point(0.0, &hx, &hy);
draw_node_halo(cr, hx, hy, NODE_SIZE * 1.05,
mauve.r, mauve.g, mauve.b, 0.18);
cairo_new_path(cr);
hw_path(cr, 0.0, t_end);
cairo_set_line_width(cr, 16);
cairo_set_source_rgb(cr, rail.r, rail.g, rail.b);
cairo_stroke(cr);
cairo_set_source_rgba(cr, muted.r, muted.g, muted.b, 0.17);
cairo_set_dash(cr, (double[]){2.0, 40.0}, 2, 0.0);
cairo_new_path(cr);
hw_path(cr, 0.0, t_end);
cairo_stroke(cr);
cairo_set_dash(cr, NULL, 0, 0.0);
}
void hw_draw_rail(GtkDrawingArea *area, cairo_t *cr,
int width, int height, gpointer data) {
(void)area;
(void)width;
(void)height;
(void)data;
if (!hw_rail_cache || hw_cache_w != hw_cw || hw_cache_h != hw_ch) {
cairo_t *rcr;
if (hw_rail_cache)
cairo_surface_destroy(hw_rail_cache);
hw_cache_w = hw_cw;
hw_cache_h = hw_ch;
if (hw_cache_w < 1)
hw_cache_w = 1;
if (hw_cache_h < 1)
hw_cache_h = 1;
hw_rail_cache = cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
hw_cache_w, hw_cache_h);
rcr = cairo_create(hw_rail_cache);
hw_render_rail_to(rcr);
cairo_destroy(rcr);
}
cairo_set_source_surface(cr, hw_rail_cache, 0, 0);
cairo_paint(cr);
}
void hw_rail_theme_reset(void) {
if (hw_rail_cache) {
cairo_surface_destroy(hw_rail_cache);
hw_rail_cache = NULL;
}
if (hw_rail)
gtk_widget_queue_draw(hw_rail);
}
void hw_add_node(GtkFixed *fixed, int index) {
int num = index + 1;
gboolean locked = index >= HW_LESSONS;
GtkWidget *card;
GtkWidget *vbox;
GtkWidget *number;
GtkWidget *icon;
GtkWidget *name;
char *text;
static const char *unit_keys[HW_LESSONS] = {
"hw_unit1"
};
card = gtk_button_new();
gtk_widget_add_css_class(card, "unit-node");
gtk_widget_set_can_focus(card, FALSE);
gtk_widget_set_sensitive(card, !locked);
gtk_widget_set_size_request(card, (int)NODE_SIZE, (int)NODE_SIZE);
if (locked)
gtk_widget_add_css_class(card, "locked");
else
gtk_widget_add_css_class(card, "current");
vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 2);
gtk_widget_set_halign(vbox, GTK_ALIGN_CENTER);
gtk_widget_set_valign(vbox, GTK_ALIGN_CENTER);
gtk_button_set_child(GTK_BUTTON(card), vbox);
text = g_strdup_printf("%d", num);
number = gtk_label_new(text);
g_free(text);
gtk_widget_add_css_class(number, "unit-number");
gtk_box_append(GTK_BOX(vbox), number);
if (locked) {
icon = icon_area_new(draw_lock_icon, 0.3451, 0.3569, 0.4392, 16);
gtk_box_append(GTK_BOX(vbox), icon);
} else {
icon = icon_area_new(draw_check_icon, 0.1176, 0.1176, 0.1804, 18);
gtk_widget_set_visible(icon, FALSE);
gtk_box_append(GTK_BOX(vbox), icon);
hw_lessons[index].done_icon = icon;
g_signal_connect(card, "clicked", G_CALLBACK(net_open_unit),
&hw_lessons[index]);
}
hw_nodes[index] = card;
gtk_fixed_put(fixed, card, 0, 0);
name = gtk_label_new(NULL);
gtk_widget_set_size_request(name, (int)(PATH_SPAC - 20.0), -1);
gtk_widget_set_halign(name, GTK_ALIGN_CENTER);
gtk_label_set_justify(GTK_LABEL(name), GTK_JUSTIFY_CENTER);
gtk_label_set_wrap(GTK_LABEL(name), TRUE);
gtk_widget_add_css_class(name, "unit-name");
if (index < HW_LESSONS) {
i18n_bind(name, unit_keys[index], 0);
} else {
gtk_widget_add_css_class(name, "unit-name-locked");
}
hw_labels[index] = name;
gtk_fixed_put(fixed, name, 0, 0);
}
GtkWidget *build_hwmap_page(void) {
GtkWidget *page;
GtkWidget *scroll;
GtkWidget *wrap;
GtkWidget *fixed;
GtkWidget *rail;
GtkAdjustment *ha;
GtkAdjustment *va;
hw_geometry(1000.0);
page = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
gtk_widget_set_hexpand(page, TRUE);
gtk_widget_set_vexpand(page, TRUE);
gtk_widget_set_margin_start(page, 32);
gtk_widget_set_margin_end(page, 32);
gtk_widget_set_margin_top(page, 24);
gtk_widget_set_margin_bottom(page, 24);
gtk_box_append(GTK_BOX(page),
top_bar("subjects", "Technické vybavení", "hw_sub"));
scroll = gtk_scrolled_window_new();
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
gtk_widget_set_vexpand(scroll, TRUE);
gtk_widget_set_margin_top(scroll, 14);
gtk_box_append(GTK_BOX(page), scroll);
hw_scroll = scroll;
wrap = gtk_center_box_new();
gtk_widget_set_vexpand(wrap, TRUE);
gtk_widget_set_hexpand(wrap, TRUE);
gtk_scrolled_window_set_child(GTK_SCROLLED_WINDOW(scroll), wrap);
fixed = gtk_fixed_new();
gtk_widget_set_halign(fixed, GTK_ALIGN_CENTER);
gtk_widget_set_valign(fixed, GTK_ALIGN_CENTER);
gtk_widget_set_size_request(fixed, hw_cw, hw_ch);
gtk_center_box_set_center_widget(GTK_CENTER_BOX(wrap), fixed);
hw_fixed = fixed;
rail = gtk_drawing_area_new();
gtk_widget_set_size_request(rail, hw_cw, hw_ch);
gtk_drawing_area_set_draw_func(GTK_DRAWING_AREA(rail), hw_draw_rail,
NULL, NULL);
gtk_fixed_put(GTK_FIXED(fixed), rail, 0, 0);
hw_rail = rail;
for (int i = 0; i < HW_UNITS; i++)
hw_add_node(GTK_FIXED(fixed), i);
ha = gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(scroll));
va = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(scroll));
g_signal_connect(ha, "notify::page-size",
G_CALLBACK(hw_adjust_notify), NULL);
g_signal_connect(va, "notify::page-size",
G_CALLBACK(hw_adjust_notify), NULL);
hw_relayout_later();
refresh_hw_completion_ui();
return page;
}
void hw_slide_apply(NetLesson *L);
void hw_slide_prev(GtkButton *button, gpointer data);
void hw_slide_next(GtkButton *button, gpointer data);
/* ---- Unit 1: Architektura počítače -------------------------------- */
static GtkWidget *hw_note_host;
static int hw_note_last_w = -1;
static void hw_rescale_notes_at(int w) {
int body, head, kick;
if (w < 160)
w = 160;
body = w / 46;
if (body < 14) body = 14;
if (body > 26) body = 26;
head = body + 14;
if (head > 46) head = 46;
kick = body - 3;
if (kick < 11) kick = 11;
for (int i = 0; i < HW_LESSONS; i++)
net_rescale_lesson_notes(&hw_lessons[i], body, head, kick);
}
static gboolean hw_note_tick(GtkWidget *w, GdkFrameClock *clock,
gpointer data) {
int width = gtk_widget_get_allocated_width(w);
(void)clock;
(void)data;
if (width != hw_note_last_w) {
hw_note_last_w = width;
hw_rescale_notes_at(width);
}
return G_SOURCE_CONTINUE;
}
static GtkWidget *build_hw_unit_page(NetLesson *L, const char *title_key,
const char *sub_key,
const NetSlide *slides, guint n_slides) {
GtkWidget *page;
GtkWidget *scroll;
GtkWidget *nav;
net_lesson_notes_ensure(L);
net_notes_target = L;
L->n_slides = n_slides;
page = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
gtk_widget_set_margin_start(page, 28);
gtk_widget_set_margin_end(page, 28);
gtk_widget_set_margin_top(page, 20);
gtk_widget_set_margin_bottom(page, 20);
gtk_box_append(GTK_BOX(page), top_bar("hwmap", title_key, sub_key));
scroll = gtk_scrolled_window_new();
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
gtk_widget_set_vexpand(scroll, TRUE);
gtk_widget_set_margin_top(scroll, 10);
gtk_box_append(GTK_BOX(page), scroll);
L->stack = gtk_stack_new();
gtk_stack_set_transition_type(GTK_STACK(L->stack),
GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT_RIGHT);
gtk_scrolled_window_set_child(GTK_SCROLLED_WINDOW(scroll), L->stack);
hw_note_host = L->stack;
for (guint s = 0; s < n_slides; s++) {
GtkWidget *stage = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
GtkWidget *card;
char name[16];
gtk_widget_set_vexpand(stage, TRUE);
g_snprintf(name, sizeof(name), "hw_slide%u", s);
gtk_stack_add_named(GTK_STACK(L->stack), stage, name);
card = gtk_box_new(GTK_ORIENTATION_VERTICAL, 16);
gtk_widget_add_css_class(card, "notes-card");
gtk_widget_set_valign(card, GTK_ALIGN_CENTER);
gtk_box_append(GTK_BOX(stage), card);
net_note_kicker(card, slides[s].kicker);
net_note_title(card, slides[s].title);
for (int i = 0; i < 8 && slides[s].line[i]; i++)
net_note_line(card, slides[s].line[i], FALSE);
if (slides[s].tip)
net_note_line(card, slides[s].tip, TRUE);
}
gtk_widget_add_tick_callback(L->stack, hw_note_tick, NULL, NULL);
hw_note_last_w = -1;
hw_rescale_notes_at(0);
net_notes_target = NULL;
nav = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 10);
gtk_box_set_homogeneous(GTK_BOX(nav), TRUE);
gtk_widget_set_margin_top(nav, 10);
gtk_box_append(GTK_BOX(page), nav);
L->prev_btn = gtk_button_new_with_label(tr("net_slide_prev"));
gtk_widget_add_css_class(L->prev_btn, "btn-primary");
g_signal_connect(L->prev_btn, "clicked", G_CALLBACK(hw_slide_prev), L);
gtk_box_append(GTK_BOX(nav), L->prev_btn);
L->next_btn = gtk_button_new_with_label(tr("net_slide_next"));
gtk_widget_add_css_class(L->next_btn, "btn-primary");
g_signal_connect(L->next_btn, "clicked", G_CALLBACK(hw_slide_next), L);
gtk_box_append(GTK_BOX(nav), L->next_btn);
L->idx = 0;
hw_slide_apply(L);
return page;
}
void hw_slide_apply(NetLesson *L) {
char name[16];
if (!L || !L->stack)
return;
g_snprintf(name, sizeof(name), "hw_slide%u", L->idx);
gtk_stack_set_visible_child_name(GTK_STACK(L->stack), name);
if (L->prev_btn) {
gtk_button_set_label(GTK_BUTTON(L->prev_btn), tr("net_slide_prev"));
gtk_widget_set_sensitive(L->prev_btn, L->idx > 0);
}
if (L->next_btn) {
gtk_button_set_label(
GTK_BUTTON(L->next_btn),
L->idx + 1 >= L->n_slides ? tr("net_slide_start")
: tr("net_slide_next"));
}
}
void hw_slide_prev(GtkButton *button, gpointer data) {
NetLesson *L = data;
(void)button;
if (!L) return;
if (L->idx > 0) {
L->idx--;
hw_slide_apply(L);
}
}
void hw_slide_next(GtkButton *button, gpointer data) {
NetLesson *L = data;
(void)button;
if (!L) return;
if (L->idx + 1 < L->n_slides) {
L->idx++;
hw_slide_apply(L);
} else {
gtk_stack_set_visible_child_name(main_stack, L->ex_page);
}
}
void hw_lessons_apply_lang(void) {
for (int i = 0; i < HW_LESSONS; i++)
hw_slide_apply(&hw_lessons[i]);
}
GtkWidget *build_hw_unit1_page(void) {
static const NetSlide slides[HW_SLIDES] = {
{
"1 / 3 • Úvod", "Architektura počítače",
"Architektura popisuje, z jakých částí se počítač skládá "
"a jak spolu spolupracují.",
{
"Architektura počítače je základní model, podle kterého "
"jsou počítače navrhovány.",
"Nejznámější model je Von Neumannovo schéma.",
"Používá se dodnes u většiny běžných počítačů.",
NULL,
},
},
{
"2 / 3 • Osobnost", "John von Neumann",
"Tip: zapamatuj si jméno – podle něj se jmenuje celé schéma.",
{
"John von Neumann byl americký matematik.",
"Pracoval na poli digitálních počítačů a operační teorie "
"kvantové mechaniky.",
"Je autorem Von Neumannovy algebry.",
"Byl tvůrcem teorie her.",
"Podílel se na vývoji atomové a vodíkové bomby.",
NULL,
},
},
{
"3 / 3 • Schéma", "Von Neumannovo schéma",
"ALS = aritmeticko-logická jednotka",
{
"Von Neumannovo schéma má pět hlavních částí:",
"ALS – aritmeticko-logická jednotka (výpočty a logika)",
"Řadič – řídí činnost ostatních částí",
"Operační paměť – uchovává program i data",
"Vstupní jednotka – přivádí data do počítače",
"Výstupní jednotka – předává výsledky ven",
NULL,
},
},
};
return build_hw_unit_page(&hw_lessons[0], "hw_unit1", "hw_unit1_sub",
slides, HW_SLIDES);
}
/* ---- Quiz --------------------------------------------------------- */
static void hw_mcq_check(GtkButton *button, gpointer data) {
NetMcqCtx *ctx = data;
int ok = 0;
(void)button;
for (int i = 0; i < ctx->n; i++) {
int active = -1;
for (int o = 0; o < ctx->n_opts; o++) {
GtkToggleButton *tb = ctx->toggles[i * ctx->n_opts + o];
gtk_widget_remove_css_class(GTK_WIDGET(tb), "ok");
gtk_widget_remove_css_class(GTK_WIDGET(tb), "wrong");
if (gtk_toggle_button_get_active(tb))
active = o;
}
if (active == ctx->qs[i].correct) {
ok++;
gtk_widget_add_css_class(
GTK_WIDGET(ctx->toggles[i * ctx->n_opts + active]), "ok");
} else if (active >= 0) {
gtk_widget_add_css_class(
GTK_WIDGET(ctx->toggles[i * ctx->n_opts + active]), "wrong");
}
if (ctx->hints && ctx->hints[i])
gtk_widget_set_visible(ctx->hints[i], TRUE);
}
if (ok == ctx->n) {
set_feedback(ctx->feedback, TRUE, tr("feedback_ok"));
mark_hw_done(ctx->lesson_id);
} else {
set_feedback(ctx->feedback, FALSE, tr("feedback_retry_short"));
}
}
static GtkWidget *build_hw_mcq_page(int lesson_id, const char *back_page,
const char *title_key,
const char *heading_key,
const ChoiceQ *qs, const char **hints,
int n) {
GtkWidget *page;
GtkWidget *scroll;
GtkWidget *body;
GtkWidget *check;
GtkWidget *btns;
GtkWidget *head;
GtkWidget *intro;
NetMcqCtx *ctx = g_new0(NetMcqCtx, 1);
int n_opts = qs[0].n_options;
page = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
gtk_widget_set_margin_start(page, 32);
gtk_widget_set_margin_end(page, 32);
gtk_widget_set_margin_top(page, 24);
gtk_widget_set_margin_bottom(page, 24);
gtk_box_append(GTK_BOX(page), top_bar(back_page, title_key, NULL));
scroll = gtk_scrolled_window_new();
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
gtk_widget_set_vexpand(scroll, TRUE);
gtk_widget_set_margin_top(scroll, 12);
gtk_box_append(GTK_BOX(page), scroll);
body = gtk_box_new(GTK_ORIENTATION_VERTICAL, 10);
gtk_scrolled_window_set_child(GTK_SCROLLED_WINDOW(scroll), body);
head = gtk_label_new(NULL);
i18n_bind(head, heading_key, 0);
gtk_widget_set_halign(head, GTK_ALIGN_START);
gtk_label_set_wrap(GTK_LABEL(head), TRUE);
gtk_widget_set_margin_top(head, 6);
gtk_widget_add_css_class(head, "ex-sub");
gtk_box_append(GTK_BOX(body), head);
intro = gtk_label_new(NULL);
i18n_bind(intro, "net_quiz_intro", 0);
gtk_widget_set_halign(intro, GTK_ALIGN_START);
gtk_label_set_wrap(GTK_LABEL(intro), TRUE);
gtk_widget_add_css_class(intro, "ex-prompt");
gtk_box_append(GTK_BOX(body), intro);
ctx->qs = qs;
ctx->n = n;
ctx->n_opts = n_opts;
ctx->lesson_id = lesson_id;
ctx->toggles = g_new0(GtkToggleButton *, n * n_opts);
ctx->hints = g_new0(GtkWidget *, n);
for (int i = 0; i < n; i++) {
GtkWidget *prompt;
GtkWidget *row;
GtkToggleButton *first = NULL;
char *qtext;
qtext = g_strdup_printf("%d.) %s", i + 1, qs[i].prompt);
prompt = gtk_label_new(qtext);
g_free(qtext);
gtk_widget_set_halign(prompt, GTK_ALIGN_START);
gtk_label_set_wrap(GTK_LABEL(prompt), TRUE);
gtk_widget_add_css_class(prompt, "ex-prompt");
gtk_widget_set_margin_top(prompt, 8);
gtk_box_append(GTK_BOX(body), prompt);
row = gtk_flow_box_new();
gtk_flow_box_set_selection_mode(GTK_FLOW_BOX(row), GTK_SELECTION_NONE);
gtk_flow_box_set_min_children_per_line(GTK_FLOW_BOX(row), n_opts);
gtk_flow_box_set_max_children_per_line(GTK_FLOW_BOX(row), n_opts);
gtk_widget_set_halign(row, GTK_ALIGN_START);
gtk_box_append(GTK_BOX(body), row);
for (int o = 0; o < n_opts; o++) {
GtkWidget *tb = gtk_toggle_button_new_with_label(qs[i].options[o]);
gtk_widget_add_css_class(tb, "pill");
gtk_toggle_button_set_group(GTK_TOGGLE_BUTTON(tb), first);
if (!first)
first = GTK_TOGGLE_BUTTON(tb);
gtk_flow_box_append(GTK_FLOW_BOX(row), tb);
ctx->toggles[i * n_opts + o] = GTK_TOGGLE_BUTTON(tb);
}
ctx->hints[i] = meaning_add(body, hints[i]);
}
btns = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 8);
gtk_widget_set_margin_top(btns, 12);
gtk_box_append(GTK_BOX(body), btns);
check = gtk_button_new();
i18n_bind(check, "check", 1);
gtk_widget_add_css_class(check, "pill");
gtk_widget_set_halign(check, GTK_ALIGN_START);
gtk_box_append(GTK_BOX(btns), check);
g_signal_connect(check, "clicked", G_CALLBACK(hw_mcq_check), ctx);
ctx->feedback = gtk_label_new("");
gtk_widget_set_halign(ctx->feedback, GTK_ALIGN_START);
gtk_box_append(GTK_BOX(body), ctx->feedback);
return page;
}
GtkWidget *build_hw_unit1_exercise_page(void) {
static const ChoiceQ qs[] = {
{"Kdo je autorem Von Neumannova schématu?",
{"Alan Turing", "John von Neumann", "Bill Gates", "Steve Jobs"},
4, 1},
{"Čím byl John von Neumann?",
{"Americký matematik", "Německý fyzik", "Anglický chemik",
"Francouzský lékař"},
4, 0},
{"Co znamená zkratka ALS?",
{"Automatická logická síť", "Aritmeticko-logická jednotka",
"Analogová linková sestava", "Adresová listová sekce"},
4, 1},
{"Která část Von Neumannova schématu řídí ostatní části?",
{"Operační paměť", "Vstupní jednotka", "Řadič", "Výstupní jednotka"},
4, 2},
{"Kde se podle Von Neumannova schématu uchovává program i data?",
{"Jen na pevném disku", "V operační paměti", "Jen ve vstupní jednotce",
"Jen v ALS"},
4, 1},
{"Čím se John von Neumann také zabýval?",
{"Jen malířstvím", "Teorií her", "Jen botanikou", "Jen hudbou"},
4, 1},
};
static const char *hints[] = {
"John von Neumann – americký matematik",
"Americký matematik s objevy v digitálních počítačích",
"ALS = aritmeticko-logická jednotka",
"Řadič řídí činnost ostatních částí",
"Operační paměť uchovává program i data",
"Byl tvůrcem teorie her",
};
return build_hw_mcq_page(0, "hwunit1", "hw_ex1_title", "hw_quiz1_head",
qs, hints, 6);
}