mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-12-26 21:51:08 +00:00
204 lines
6.3 KiB
C
204 lines
6.3 KiB
C
#include <gtk/gtk.h>
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static const char *entries[] = {
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"GTK_LIST_BOX_ROW"
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};
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static void
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drag_begin (GtkDragSource *source,
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GdkDrag *drag,
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GtkWidget *widget)
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{
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GtkWidget *row;
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GtkAllocation alloc;
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GdkPaintable *paintable;
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int x, y;
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row = gtk_widget_get_ancestor (widget, GTK_TYPE_LIST_BOX_ROW);
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gtk_widget_get_allocation (row, &alloc);
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paintable = gtk_widget_paintable_new (row);
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gtk_widget_translate_coordinates (widget, row, 0, 0, &x, &y);
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gtk_drag_source_set_icon (source, paintable, -x, -y);
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g_object_unref (paintable);
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}
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static void
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got_row (GObject *src,
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GAsyncResult *result,
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gpointer data)
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{
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GtkDropTarget *dest = GTK_DROP_TARGET (src);
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GtkWidget *target = data;
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GtkWidget *row;
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GtkWidget *source;
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int pos;
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GtkSelectionData *selection_data;
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selection_data = gtk_drop_target_read_selection_finish (dest, result, NULL);
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pos = gtk_list_box_row_get_index (GTK_LIST_BOX_ROW (target));
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row = (gpointer)* (gpointer*)gtk_selection_data_get_data (selection_data);
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source = gtk_widget_get_ancestor (row, GTK_TYPE_LIST_BOX_ROW);
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gtk_selection_data_free (selection_data);
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if (source == target)
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return;
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g_object_ref (source);
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gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (source)), source);
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gtk_list_box_insert (GTK_LIST_BOX (gtk_widget_get_parent (target)), source, pos);
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g_object_unref (source);
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}
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static void
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drag_drop (GtkDropTarget *dest,
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GdkDrop *drop,
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int x,
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int y,
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gpointer data)
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{
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gtk_drop_target_read_selection (dest, "GTK_LIST_BOX_ROW", NULL, got_row, data);
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}
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static GtkWidget *
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create_row (const gchar *text)
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{
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GtkWidget *row, *box, *label, *image;
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GBytes *bytes;
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GdkContentProvider *content;
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GdkContentFormats *targets;
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GtkDragSource *source;
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GtkDropTarget *dest;
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row = gtk_list_box_row_new ();
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image = gtk_image_new_from_icon_name ("open-menu-symbolic");
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box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
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g_object_set (box, "margin-start", 10, "margin-end", 10, NULL);
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label = gtk_label_new (text);
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gtk_container_add (GTK_CONTAINER (row), box);
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gtk_widget_set_hexpand (label, TRUE);
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gtk_container_add (GTK_CONTAINER (box), label);
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gtk_container_add (GTK_CONTAINER (box), image);
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bytes = g_bytes_new (&row, sizeof (gpointer));
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content = gdk_content_provider_new_for_bytes ("GTK_LIST_BOX_ROW", bytes);
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source = gtk_drag_source_new ();
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gtk_drag_source_set_content (source, content);
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gtk_drag_source_set_actions (source, GDK_ACTION_MOVE);
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g_signal_connect (source, "drag-begin", G_CALLBACK (drag_begin), image);
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gtk_widget_add_controller (image, GTK_EVENT_CONTROLLER (source));
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targets = gdk_content_formats_new (entries, 1);
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dest = gtk_drop_target_new (targets, GDK_ACTION_MOVE);
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g_signal_connect (dest, "drag-drop", G_CALLBACK (drag_drop), row);
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gtk_widget_add_controller (GTK_WIDGET (row), GTK_EVENT_CONTROLLER (dest));
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gdk_content_formats_unref (targets);
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return row;
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}
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static void
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on_row_activated (GtkListBox *self,
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GtkWidget *child)
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{
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const char *id;
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id = g_object_get_data (G_OBJECT (gtk_bin_get_child (GTK_BIN (child))), "id");
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g_message ("Row activated %p: %s", child, id);
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}
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static void
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on_selected_children_changed (GtkListBox *self)
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{
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g_message ("Selection changed");
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}
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static void
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a11y_selection_changed (AtkObject *obj)
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{
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g_message ("Accessible selection changed");
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}
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static void
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selection_mode_changed (GtkComboBox *combo, gpointer data)
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{
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GtkListBox *list = data;
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gtk_list_box_set_selection_mode (list, gtk_combo_box_get_active (combo));
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}
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static const char *css =
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".during-dnd { "
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" background: white; "
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" border: 1px solid black; "
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"}";
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int
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main (int argc, char *argv[])
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{
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GtkWidget *window, *list, *sw, *row;
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GtkWidget *hbox, *vbox, *combo, *button;
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gint i;
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gchar *text;
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GtkCssProvider *provider;
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gtk_init ();
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provider = gtk_css_provider_new ();
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gtk_css_provider_load_from_data (provider, css, -1);
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gtk_style_context_add_provider_for_display (gdk_display_get_default (), GTK_STYLE_PROVIDER (provider), 800);
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_default_size (GTK_WINDOW (window), -1, 300);
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hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
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gtk_container_add (GTK_CONTAINER (window), hbox);
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
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g_object_set (vbox, "margin", 12, NULL);
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gtk_container_add (GTK_CONTAINER (hbox), vbox);
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list = gtk_list_box_new ();
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gtk_list_box_set_selection_mode (GTK_LIST_BOX (list), GTK_SELECTION_NONE);
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g_signal_connect (list, "row-activated", G_CALLBACK (on_row_activated), NULL);
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g_signal_connect (list, "selected-rows-changed", G_CALLBACK (on_selected_children_changed), NULL);
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g_signal_connect (gtk_widget_get_accessible (list), "selection-changed", G_CALLBACK (a11y_selection_changed), NULL);
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sw = gtk_scrolled_window_new (NULL, NULL);
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gtk_widget_set_hexpand (sw, TRUE);
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw), GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
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gtk_container_add (GTK_CONTAINER (hbox), sw);
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gtk_container_add (GTK_CONTAINER (sw), list);
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button = gtk_check_button_new_with_label ("Activate on single click");
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g_object_bind_property (list, "activate-on-single-click",
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button, "active",
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G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
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gtk_container_add (GTK_CONTAINER (vbox), button);
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combo = gtk_combo_box_text_new ();
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gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "None");
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gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "Single");
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gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "Browse");
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gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo), "Multiple");
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g_signal_connect (combo, "changed", G_CALLBACK (selection_mode_changed), list);
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gtk_container_add (GTK_CONTAINER (vbox), combo);
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gtk_combo_box_set_active (GTK_COMBO_BOX (combo), gtk_list_box_get_selection_mode (GTK_LIST_BOX (list)));
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for (i = 0; i < 20; i++)
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{
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text = g_strdup_printf ("Row %d", i);
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row = create_row (text);
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gtk_list_box_insert (GTK_LIST_BOX (list), row, -1);
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}
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gtk_widget_show (window);
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while (TRUE)
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g_main_context_iteration (NULL, TRUE);
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return 0;
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}
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