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/* Popovers
*
* A bubble-like window containing contextual information or options.
* GtkPopovers can be attached to any widget, and will be displayed
* within the same window, but on top of all its content.
*/
#include <gtk/gtk.h>
static void
toggle_changed_cb (GtkToggleButton *button,
GtkWidget *popover)
{
gtk_widget_set_visible (popover,
gtk_toggle_button_get_active (button));
}
static GtkWidget *
create_popover (GtkWidget *parent,
GtkWidget *child,
GtkPositionType pos)
{
GtkWidget *popover;
popover = gtk_popover_new (parent);
gtk_popover_set_position (GTK_POPOVER (popover), pos);
gtk_container_add (GTK_CONTAINER (popover), child);
g_object_set (child, "margin", 6, NULL);
gtk_widget_show (child);
return popover;
}
static GtkWidget *
create_complex_popover (GtkWidget *parent,
GtkPositionType pos)
{
GtkWidget *popover, *window, *content;
GtkBuilder *builder;
builder = gtk_builder_new ();
gtk_builder_add_from_resource (builder, "/popover/popover.ui", NULL);
window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
content = gtk_bin_get_child (GTK_BIN (window));
g_object_ref (content);
gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (content)),
content);
gtk_widget_destroy (window);
g_object_unref (builder);
popover = create_popover (parent, content, GTK_POS_BOTTOM);
g_object_unref (content);
return popover;
}
static void
entry_size_allocate_cb (GtkEntry *entry,
int width,
int height,
int baseline,
gpointer user_data)
{
GtkEntryIconPosition popover_pos;
GtkPopover *popover = user_data;
cairo_rectangle_int_t rect;
if (gtk_widget_is_visible (GTK_WIDGET (popover)))
{
popover_pos =
GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (entry),
"popover-icon-pos"));
gtk_entry_get_icon_area (entry, popover_pos, &rect);
gtk_popover_set_pointing_to (GTK_POPOVER (popover), &rect);
}
}
static void
entry_icon_press_cb (GtkEntry *entry,
GtkEntryIconPosition icon_pos,
gpointer user_data)
{
GtkWidget *popover = user_data;
cairo_rectangle_int_t rect;
gtk_entry_get_icon_area (entry, icon_pos, &rect);
gtk_popover_set_pointing_to (GTK_POPOVER (popover), &rect);
gtk_widget_show (popover);
g_object_set_data (G_OBJECT (entry), "popover-icon-pos",
GUINT_TO_POINTER (icon_pos));
}
static void
day_selected_cb (GtkCalendar *calendar,
gpointer user_data)
{
cairo_rectangle_int_t rect;
GtkWidget *popover;
GdkEvent *event;
gdouble x, y;
GtkWidget *widget;
event = gtk_get_current_event ();
if (gdk_event_get_event_type (event) != GDK_BUTTON_PRESS)
return;
gdk_event_get_position (event, &x, &y);
widget = gtk_native_get_for_surface (gdk_event_get_surface (event));
gtk_widget_translate_coordinates (widget,
GTK_WIDGET (calendar),
x, y,
&rect.x, &rect.y);
rect.width = rect.height = 1;
popover = create_popover (GTK_WIDGET (calendar),
gtk_entry_new (),
GTK_POS_BOTTOM);
gtk_popover_set_pointing_to (GTK_POPOVER (popover), &rect);
gtk_widget_show (popover);
gdk_event_unref (event);
}
GtkWidget *
do_popover (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
GtkWidget *popover, *box, *widget;
if (!window)
{
window = gtk_window_new ();
gtk_window_set_title (GTK_WINDOW (window), "Popovers");
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 24);
g_object_set (box, "margin", 24, NULL);
gtk_container_add (GTK_CONTAINER (window), box);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
widget = gtk_toggle_button_new_with_label ("Button");
popover = create_popover (widget,
gtk_label_new ("This popover does not grab input"),
GTK_POS_TOP);
gtk_popover_set_autohide (GTK_POPOVER (popover), FALSE);
g_signal_connect (widget, "toggled",
G_CALLBACK (toggle_changed_cb), popover);
gtk_container_add (GTK_CONTAINER (box), widget);
widget = gtk_entry_new ();
popover = create_complex_popover (widget, GTK_POS_TOP);
gtk_entry_set_icon_from_icon_name (GTK_ENTRY (widget),
GTK_ENTRY_ICON_PRIMARY, "edit-find");
gtk_entry_set_icon_from_icon_name (GTK_ENTRY (widget),
GTK_ENTRY_ICON_SECONDARY, "edit-clear");
g_signal_connect (widget, "icon-press",
G_CALLBACK (entry_icon_press_cb), popover);
g_signal_connect (widget, "size-allocate",
G_CALLBACK (entry_size_allocate_cb), popover);
gtk_container_add (GTK_CONTAINER (box), widget);
widget = gtk_calendar_new ();
g_signal_connect (widget, "day-selected",
G_CALLBACK (day_selected_cb), NULL);
gtk_container_add (GTK_CONTAINER (box), widget);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_widget_destroy (window);
return window;
}
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