diff --git a/fiv-browser.c b/fiv-browser.c
index d58e180..175f364 100644
--- a/fiv-browser.c
+++ b/fiv-browser.c
@@ -989,7 +989,7 @@ fiv_browser_button_press_event(GtkWidget *widget, GdkEventButton *event)
}
}
-gboolean
+static gboolean
fiv_browser_motion_notify_event(GtkWidget *widget, GdkEventMotion *event)
{
GTK_WIDGET_CLASS(fiv_browser_parent_class)
diff --git a/fiv.c b/fiv.c
index 8af0cc5..13dd761 100644
--- a/fiv.c
+++ b/fiv.c
@@ -206,6 +206,252 @@ make_key_window(void)
return window;
}
+// --- About -------------------------------------------------------------------
+
+static void
+on_about_map(GtkWidget *widget, G_GNUC_UNUSED gpointer user_data)
+{
+ GdkFrameClock *clock = gtk_widget_get_frame_clock(widget);
+ (void) g_signal_connect_swapped(
+ clock, "update", G_CALLBACK(gtk_widget_queue_draw), widget);
+ gdk_frame_clock_begin_updating(clock);
+}
+
+static void
+on_about_unmap(GtkWidget *widget, G_GNUC_UNUSED gpointer user_data)
+{
+ GdkFrameClock *clock = gtk_widget_get_frame_clock(widget);
+ gdk_frame_clock_end_updating(clock);
+}
+
+static gint g_about_x, g_about_y;
+
+static gboolean
+on_about_motion(G_GNUC_UNUSED GtkWidget *widget, GdkEventMotion *event,
+ G_GNUC_UNUSED gpointer user_data)
+{
+ g_about_x = event->x;
+ g_about_y = event->y;
+ return FALSE;
+}
+
+static gboolean
+on_about_leave(G_GNUC_UNUSED GtkWidget *widget,
+ G_GNUC_UNUSED GdkEventCrossing *event, G_GNUC_UNUSED gpointer user_data)
+{
+ g_about_x = 0;
+ g_about_y = 0;
+ return FALSE;
+}
+
+enum { ABOUT_SIZE = 48, ABOUT_SCALE = 3, ABOUT_HEIGHT = ABOUT_SIZE * 4 / 3 };
+
+// The mismatching resolution is incidental, and kept for interesting looks.
+cairo_pattern_t *
+make_infinite_v_pattern(void)
+{
+ cairo_surface_t *surface =
+ cairo_image_surface_create(CAIRO_FORMAT_ARGB32, ABOUT_SIZE, ABOUT_SIZE);
+ cairo_t *cr = cairo_create(surface);
+ cairo_move_to(cr, 2, 7);
+ cairo_rel_line_to(cr, 44, 0);
+ cairo_rel_line_to(cr, -17, 39);
+ cairo_rel_line_to(cr, -10, 0);
+ cairo_close_path(cr);
+
+ cairo_pattern_t *gradient = cairo_pattern_create_linear(0, 7, 0, 46);
+ cairo_pattern_add_color_stop_rgba(gradient, 1, 1, 0x66 / 255., 0, 1);
+ cairo_pattern_add_color_stop_rgba(gradient, 0, 1, 0xaa / 255., 0, 1);
+ cairo_set_source(cr, gradient);
+ cairo_fill(cr);
+
+ cairo_destroy(cr);
+ cairo_pattern_t *pattern = cairo_pattern_create_for_surface(surface);
+ cairo_surface_destroy(surface);
+ cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
+ cairo_pattern_set_filter(pattern, CAIRO_FILTER_NEAREST);
+ cairo_matrix_t matrix = {};
+ cairo_matrix_init_translate(&matrix, ABOUT_SIZE / 2, 0);
+ cairo_pattern_set_matrix(pattern, &matrix);
+ return pattern;
+}
+
+static void
+draw_ligature(cairo_t *cr)
+{
+ // Transcribed fiv.svg--it would arguably make more sense to generate
+ // that file and these Cairo instructions from the same source.
+ cairo_move_to(cr, 12.5, 20.5);
+ cairo_rel_line_to(cr, -4, 0);
+ cairo_rel_line_to(cr, 0, +5);
+ cairo_rel_line_to(cr, +4, 0);
+ cairo_rel_line_to(cr, 0, +15);
+ cairo_rel_line_to(cr, 9, 0);
+ cairo_rel_line_to(cr, 0, -15);
+ cairo_rel_line_to(cr, +2, 0);
+ cairo_rel_line_to(cr, 0, -5);
+ cairo_rel_line_to(cr, -2, 0);
+ cairo_rel_line_to(cr, 0, -8);
+ cairo_rel_curve_to(cr, 0, -4, 5, -4, 5, 0);
+ cairo_rel_curve_to(cr, 0, 6, 9, 6, 9, 0);
+ cairo_rel_curve_to(cr, 0, -12, -23, -12, -23, 0);
+ cairo_close_path(cr);
+
+ cairo_move_to(cr, 26.5, 20.5);
+ cairo_rel_line_to(cr, 9, 0);
+ cairo_rel_line_to(cr, 0, 20);
+ cairo_rel_line_to(cr, -9, 0);
+ cairo_close_path(cr);
+
+ cairo_path_t *ligature = cairo_copy_path(cr);
+ cairo_save(cr);
+ cairo_clip(cr);
+
+ // Shadow approximation, given the lack of filters in Cairo.
+ enum { STEPS = 5 };
+ for (int i = 0; i <= STEPS; i++) {
+ cairo_save(cr);
+ double o = 1. / ABOUT_SCALE + 1. / ABOUT_SCALE * i;
+ cairo_translate(cr, o, o);
+ cairo_append_path(cr, ligature);
+ double v = 1 - (STEPS - i) * 0.075;
+ cairo_set_source_rgb(cr, v, v, v);
+ cairo_fill(cr);
+ cairo_restore(cr);
+ }
+
+ cairo_restore(cr);
+ cairo_append_path(cr, ligature);
+ cairo_path_destroy(ligature);
+ cairo_set_source_rgb(cr, 0, 0, 0);
+ cairo_set_line_width(cr, 1);
+ cairo_stroke(cr);
+}
+
+static gboolean
+on_about_draw(GtkWidget *widget, cairo_t *cr, G_GNUC_UNUSED gpointer user_data)
+{
+ GtkAllocation allocation;
+ gtk_widget_get_allocation(widget, &allocation);
+ GtkStyleContext *style = gtk_widget_get_style_context(widget);
+ gtk_render_background(style, cr, 0, 0, allocation.width, allocation.height);
+
+ cairo_translate(cr, (allocation.width - ABOUT_SIZE * ABOUT_SCALE) / 2,
+ ABOUT_SIZE * ABOUT_SCALE / 4);
+ cairo_scale(cr, ABOUT_SCALE, ABOUT_SCALE);
+
+ cairo_save(cr);
+ cairo_translate(cr, ABOUT_SIZE / 2, ABOUT_SIZE / 2);
+ if (g_about_x && g_about_y) {
+ gint dx = g_about_x - allocation.width / 2;
+ gint dy = g_about_y - ABOUT_SIZE * ABOUT_SCALE * 3 / 4;
+ cairo_rotate(cr, atan2(dy, dx) - M_PI_2);
+ }
+
+ GdkFrameClock *clock = gtk_widget_get_frame_clock(widget);
+ gint64 t = gdk_frame_clock_get_frame_time(clock);
+ cairo_translate(cr, 0, (gint64) (t / 4e4) % ABOUT_SIZE);
+
+ cairo_pattern_t *v = make_infinite_v_pattern();
+ cairo_set_source(cr, v);
+ cairo_paint(cr);
+
+ cairo_save(cr);
+ cairo_translate(cr, ABOUT_SIZE / 2, 14 /* Through trial and error. */);
+ cairo_scale(cr, 1, -1);
+ cairo_set_source(cr, v);
+ cairo_paint(cr);
+ cairo_restore(cr);
+
+ cairo_pattern_destroy(v);
+ cairo_restore(cr);
+ draw_ligature(cr);
+ return TRUE;
+}
+
+static GtkWidget *
+make_about_dialog(GtkWidget *parent)
+{
+ GtkWidget *dialog = gtk_widget_new(GTK_TYPE_DIALOG, "use-header-bar", TRUE,
+ "title", "About", "transient-for", parent, "destroy-with-parent", TRUE,
+ NULL);
+
+ GtkWidget *area = gtk_drawing_area_new();
+ gtk_style_context_add_class(gtk_widget_get_style_context(area), "view");
+ gtk_widget_set_size_request(
+ area, ABOUT_SIZE * ABOUT_SCALE * 2, ABOUT_HEIGHT * ABOUT_SCALE);
+
+ gtk_widget_add_events(
+ area, GDK_POINTER_MOTION_MASK | GDK_LEAVE_NOTIFY_MASK);
+ g_signal_connect(
+ area, "motion-notify-event", G_CALLBACK(on_about_motion), NULL);
+ g_signal_connect(
+ area, "leave-notify-event", G_CALLBACK(on_about_leave), NULL);
+
+ g_signal_connect(area, "draw", G_CALLBACK(on_about_draw), NULL);
+ g_signal_connect(area, "map", G_CALLBACK(on_about_map), NULL);
+ g_signal_connect(area, "unmap", G_CALLBACK(on_about_unmap), NULL);
+
+ // The rest is approximately copying GTK+'s own gtkaboutdialog.ui.
+ GtkWidget *name = gtk_label_new(NULL);
+ gtk_label_set_selectable(GTK_LABEL(name), TRUE);
+ gtk_label_set_markup(
+ GTK_LABEL(name), "" PROJECT_NAME " " PROJECT_VERSION);
+
+ GtkWidget *website = gtk_label_new(NULL);
+ gtk_label_set_selectable(GTK_LABEL(website), TRUE);
+ const char *url = "https://git.janouch.name/p/fiv";
+ gchar *link = g_strdup_printf("%s", url, url);
+ gtk_label_set_markup(GTK_LABEL(website), link);
+ g_free(link);
+
+ GtkWidget *sw = gtk_scrolled_window_new(NULL, NULL);
+ gtk_scrolled_window_set_policy(
+ GTK_SCROLLED_WINDOW(sw), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
+ gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(sw), GTK_SHADOW_IN);
+
+ GtkWidget *viewer = gtk_text_view_new();
+ gtk_text_view_set_editable(GTK_TEXT_VIEW(viewer), FALSE);
+ gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(viewer), FALSE);
+ gtk_text_view_set_left_margin(GTK_TEXT_VIEW(viewer), 8);
+ gtk_text_view_set_right_margin(GTK_TEXT_VIEW(viewer), 8);
+ gtk_container_add(GTK_CONTAINER(sw), viewer);
+
+ GBytes *license =
+ g_resources_lookup_data("/LICENSE", G_RESOURCE_LOOKUP_FLAGS_NONE, NULL);
+ g_return_val_if_fail(license != NULL, dialog);
+ gchar *escaped = g_markup_escape_text(g_bytes_get_data(license, NULL), -1);
+ g_bytes_unref(license);
+
+ GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(viewer));
+ gchar *formatted = g_strdup_printf("%s", escaped);
+ g_free(escaped);
+ GtkTextIter iter = {};
+ gtk_text_buffer_get_start_iter(buffer, &iter);
+ gtk_text_buffer_insert_markup(buffer, &iter, formatted, -1);
+ g_free(formatted);
+
+ enum { SUBBOX_MARGIN = 12 /* Roughly matches. */ };
+ GtkWidget *subbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 12);
+ gtk_widget_set_margin_start(subbox, SUBBOX_MARGIN);
+ gtk_widget_set_margin_end(subbox, SUBBOX_MARGIN);
+ gtk_box_pack_start(GTK_BOX(subbox), name, FALSE, FALSE, 0);
+ gtk_box_pack_start(GTK_BOX(subbox), website, FALSE, FALSE, 0);
+ gtk_box_pack_start(GTK_BOX(subbox), sw, TRUE, TRUE, 0);
+
+ GtkWidget *box = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
+ gtk_box_pack_start(GTK_BOX(box), area, FALSE, FALSE, 0);
+ gtk_box_pack_end(GTK_BOX(box), subbox, TRUE, TRUE, SUBBOX_MARGIN);
+
+ gtk_window_set_default_size(GTK_WINDOW(dialog), -1, 480);
+ gtk_window_set_geometry_hints(GTK_WINDOW(dialog), NULL,
+ &(GdkGeometry) {.max_width = -1, .max_height = G_MAXSHORT},
+ GDK_HINT_MAX_SIZE);
+
+ gtk_widget_grab_focus(viewer);
+ return dialog;
+}
+
// --- Main --------------------------------------------------------------------
// TODO(p): See if it's possible to give separators room to shrink
@@ -820,6 +1066,17 @@ on_key_press(G_GNUC_UNUSED GtkWidget *widget, GdkEventKey *event,
return TRUE;
}
break;
+ case GDK_SHIFT_MASK:
+ switch (event->keyval) {
+ case GDK_KEY_F1: {
+ GtkWidget *dialog = make_about_dialog(g.window);
+ gtk_widget_show_all(dialog);
+ gtk_dialog_run(GTK_DIALOG(dialog));
+ gtk_widget_destroy(dialog);
+ return TRUE;
+ }
+ }
+ break;
case 0:
switch (event->keyval) {
case GDK_KEY_Escape:
diff --git a/resources/resources.gresource.xml b/resources/resources.gresource.xml
index 0b32dc8..092aed1 100644
--- a/resources/resources.gresource.xml
+++ b/resources/resources.gresource.xml
@@ -1,5 +1,8 @@
+
+ ../LICENSE
+
circle-filled-symbolic.svg
funnel-symbolic.svg