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gtk/tests/testmenubutton.c
Daniel Boles 6cafb62e9b testmenubutton: Fix inverted keynav in the GtkMenu 
GtkMenu’s own keynav code, which actually bothers to account for the
layout of items, only happens if columns > 1. So, adding items to 1
column using a reverse loop meant they were placed in the Menu’s list of
children in that order, and because we only have 1 column, Menu passes
keynav up to MenuShell, which doesn’t adjust for the items’ positions.

‘Fix’ that here by adding items in the same order they’ll have when laid
out in the Menu, so keynav does what you’d expect, not the opposite. For
that, it’s simpler just to use gtk_container_add().

Let’s presume users are using add(), attach() with a non-inverted loop,
or attach() with arguments that create 2+ columns and so GtkMenu keynav.
2017-10-08 13:17:04 +01:00

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#include <gtk/gtk.h>
#define INITIAL_HALIGN GTK_ALIGN_START
#define INITIAL_VALIGN GTK_ALIGN_START
static GList *menubuttons = NULL;
static void
horizontal_alignment_changed (GtkComboBox *box)
{
GtkAlign alignment = gtk_combo_box_get_active (box);
GList *l;
for (l = menubuttons; l != NULL; l = l->next) {
GtkMenu *popup = gtk_menu_button_get_popup (GTK_MENU_BUTTON (l->data));
if (popup != NULL)
gtk_widget_set_halign (GTK_WIDGET (popup), alignment);
}
}
static void
vertical_alignment_changed (GtkComboBox *box)
{
GtkAlign alignment = gtk_combo_box_get_active (box);
GList *l;
for (l = menubuttons; l != NULL; l = l->next) {
GtkMenu *popup = gtk_menu_button_get_popup (GTK_MENU_BUTTON (l->data));
if (popup != NULL)
gtk_widget_set_valign (GTK_WIDGET (popup), alignment);
}
}
int main (int argc, char **argv)
{
GtkWidget *window;
GtkWidget *button;
GtkWidget *grid;
GtkWidget *entry;
GtkWidget *label;
GtkWidget *check;
GtkWidget *combo;
GtkWidget *menu_widget;
GtkAccelGroup *accel_group;
guint i;
guint row = 0;
GMenu *menu;
gtk_init ();
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_resize (GTK_WINDOW (window), 400, 300);
grid = gtk_grid_new ();
gtk_grid_set_row_spacing (GTK_GRID (grid), 12);
gtk_grid_set_column_spacing (GTK_GRID (grid), 12);
gtk_container_add (GTK_CONTAINER (window), grid);
accel_group = gtk_accel_group_new ();
gtk_window_add_accel_group (GTK_WINDOW (window), accel_group);
/* horizontal alignment */
label = gtk_label_new ("Horizontal Alignment:");
gtk_widget_show (label);
gtk_grid_attach (GTK_GRID (grid), label, 0, row++, 1, 1);
combo = gtk_combo_box_text_new ();
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "Fill");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "Start");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "End");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "Center");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "Baseline");
gtk_combo_box_set_active (GTK_COMBO_BOX (combo), INITIAL_HALIGN);
gtk_widget_show (combo);
gtk_grid_attach_next_to (GTK_GRID (grid), combo, label, GTK_POS_RIGHT, 1, 1);
g_signal_connect (G_OBJECT (combo), "changed",
G_CALLBACK (horizontal_alignment_changed), menubuttons);
/* vertical alignment */
label = gtk_label_new ("Vertical Alignment:");
gtk_widget_show (label);
gtk_grid_attach (GTK_GRID (grid), label, 0, row++, 1, 1);
combo = gtk_combo_box_text_new ();
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "Fill");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "Start");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "End");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "Center");
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "Baseline");
gtk_combo_box_set_active (GTK_COMBO_BOX (combo), INITIAL_HALIGN);
gtk_widget_show (combo);
gtk_grid_attach_next_to (GTK_GRID (grid), combo, label, GTK_POS_RIGHT, 1, 1);
g_signal_connect (G_OBJECT (combo), "changed",
G_CALLBACK (vertical_alignment_changed), menubuttons);
/* Button next to entry */
entry = gtk_entry_new ();
gtk_grid_attach (GTK_GRID (grid), entry, 0, row++, 1, 1);
button = gtk_menu_button_new ();
gtk_widget_set_halign (button, GTK_ALIGN_START);
gtk_grid_attach_next_to (GTK_GRID (grid), button, entry, GTK_POS_RIGHT, 1, 1);
menubuttons = g_list_prepend (menubuttons, button);
/* Button with GtkMenu */
menu_widget = gtk_menu_new ();
for (i = 0; i < 5; ++i) {
GtkWidget *item;
if (i == 2) {
item = gtk_menu_item_new_with_mnemonic ("_Copy");
} else {
char *label;
label = g_strdup_printf ("Item _%d", i + 1);
item = gtk_menu_item_new_with_mnemonic (label);
g_free (label);
}
gtk_menu_item_set_use_underline (GTK_MENU_ITEM (item), TRUE);
gtk_container_add (GTK_CONTAINER (menu_widget), item);
}
gtk_widget_show (menu_widget);
button = gtk_menu_button_new ();
gtk_widget_set_halign (button, GTK_ALIGN_START);
menubuttons = g_list_prepend (menubuttons, button);
gtk_menu_button_set_popup (GTK_MENU_BUTTON (button), menu_widget);
gtk_grid_attach (GTK_GRID (grid), button, 1, row++, 1, 1);
check = gtk_check_button_new_with_label ("Popover");
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check), TRUE);
gtk_grid_attach (GTK_GRID (grid), check, 0, row, 1, 1);
/* Button with GMenuModel */
menu = g_menu_new ();
for (i = 5; i > 0; i--) {
char *label;
GMenuItem *item;
label = g_strdup_printf ("Item _%d", i);
item = g_menu_item_new (label, NULL);
if (i == 3)
g_menu_item_set_attribute (item, "icon", "s", "preferences-desktop-locale-symbolic");
g_menu_insert_item (menu, 0, item);
g_object_unref (item);
g_free (label);
}
button = gtk_menu_button_new ();
g_object_bind_property (check, "active", button, "use-popover", G_BINDING_SYNC_CREATE);
gtk_widget_set_halign (button, GTK_ALIGN_START);
menubuttons = g_list_prepend (menubuttons, button);
gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (button), G_MENU_MODEL (menu));
gtk_grid_attach (GTK_GRID (grid), button, 1, row++, 1, 1);
gtk_widget_show (window);
gtk_main ();
return 0;
}
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