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a411959c91
This is a huge reorganization of GtkDropTarget. I did not know how to split this up, so it's unfortunately all one commit. Highlights: - Split GtkDropTarget into GtkDropTarget and GtkDropTargetAsync GtkDropTarget is the simple one that only works with GTypes and offers a synchronous interface. GtkDropTargetAsync retains the full old functionality and allows handling mime types. - Drop events are handled differently Instead of picking a single drop target and sending all DND events to it, every event is sent to every drop target. The first one to handle the event gets to call gdk_drop_status(), further handlers do not interact with the GdkDrop. Of course, for the ultimate GDK_DROP_STARTING event, only the first one to accept the drop gets to handle it. This allows stacking DND event controllers that aren't necessarily interested in handling the event or that might decide later to drop it. - Port all widgets to either of those Both have a somewhat changed API due to the new event handling. For the ones who should use the sync version, lots of cleanup was involved to operate on a sync API.
332 lines
9.4 KiB
C
332 lines
9.4 KiB
C
/* -*- Mode: C; c-file-style: "gnu"; tab-width: 8 -*- */
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/*
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* GTK - The GIMP Toolkit
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* Copyright (C) 2006 Carlos Garnacho Parro <carlosg@gnome.org>
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*
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* All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <gtk/gtk.h>
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static gpointer GROUP_A = "GROUP_A";
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static gpointer GROUP_B = "GROUP_B";
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gchar *tabs1 [] = {
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"aaaaaaaaaa",
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"bbbbbbbbbb",
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"cccccccccc",
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"dddddddddd",
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NULL
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};
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gchar *tabs2 [] = {
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"1",
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"2",
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"3",
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"4",
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"55555",
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NULL
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};
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gchar *tabs3 [] = {
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"foo",
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"bar",
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NULL
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};
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gchar *tabs4 [] = {
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"beer",
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"water",
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"lemonade",
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"coffee",
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"tea",
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NULL
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};
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static GtkNotebook*
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window_creation_function (GtkNotebook *source_notebook,
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GtkWidget *child,
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gint x,
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gint y,
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gpointer data)
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{
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GtkWidget *window, *notebook;
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window = gtk_window_new ();
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notebook = gtk_notebook_new ();
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g_signal_connect (notebook, "create-window",
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G_CALLBACK (window_creation_function), NULL);
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gtk_notebook_set_group_name (GTK_NOTEBOOK (notebook),
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gtk_notebook_get_group_name (source_notebook));
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gtk_container_add (GTK_CONTAINER (window), notebook);
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gtk_window_set_default_size (GTK_WINDOW (window), 300, 300);
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gtk_widget_show (window);
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return GTK_NOTEBOOK (notebook);
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}
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static void
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on_page_reordered (GtkNotebook *notebook, GtkWidget *child, guint page_num, gpointer data)
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{
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g_print ("page %d reordered\n", page_num);
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}
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static gboolean
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remove_in_idle (gpointer data)
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{
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GtkNotebookPage *page = data;
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GtkWidget *child = gtk_notebook_page_get_child (page);
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GtkWidget *parent = gtk_widget_get_ancestor (child, GTK_TYPE_NOTEBOOK);
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GtkWidget *tab_label;
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tab_label = gtk_notebook_get_tab_label (GTK_NOTEBOOK (parent), child);
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g_print ("Removing tab: %s\n", gtk_label_get_text (GTK_LABEL (tab_label)));
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gtk_container_remove (GTK_CONTAINER (parent), child);
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return G_SOURCE_REMOVE;
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}
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static gboolean
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on_button_drag_drop (GtkDropTarget *dest,
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const GValue *value,
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double x,
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double y,
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gpointer user_data)
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{
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GtkNotebookPage *page;
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page = g_value_get_object (value);
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g_idle_add (remove_in_idle, page);
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return TRUE;
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}
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static void
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action_clicked_cb (GtkWidget *button,
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GtkWidget *notebook)
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{
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GtkWidget *page, *title;
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page = gtk_entry_new ();
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gtk_editable_set_text (GTK_EDITABLE (page), "Addition");
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title = gtk_label_new ("Addition");
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gtk_notebook_append_page (GTK_NOTEBOOK (notebook), page, title);
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gtk_notebook_set_tab_reorderable (GTK_NOTEBOOK (notebook), page, TRUE);
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gtk_notebook_set_tab_detachable (GTK_NOTEBOOK (notebook), page, TRUE);
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}
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static GtkWidget*
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create_notebook (gchar **labels,
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const gchar *group,
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GtkPositionType pos)
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{
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GtkWidget *notebook, *title, *page, *action_widget;
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notebook = gtk_notebook_new ();
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gtk_widget_set_vexpand (notebook, TRUE);
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gtk_widget_set_hexpand (notebook, TRUE);
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action_widget = gtk_button_new_from_icon_name ("list-add-symbolic");
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g_signal_connect (action_widget, "clicked", G_CALLBACK (action_clicked_cb), notebook);
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gtk_notebook_set_action_widget (GTK_NOTEBOOK (notebook), action_widget, GTK_PACK_END);
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g_signal_connect (notebook, "create-window",
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G_CALLBACK (window_creation_function), NULL);
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gtk_notebook_set_tab_pos (GTK_NOTEBOOK (notebook), pos);
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gtk_notebook_set_scrollable (GTK_NOTEBOOK (notebook), TRUE);
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gtk_notebook_set_group_name (GTK_NOTEBOOK (notebook), group);
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while (*labels)
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{
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page = gtk_entry_new ();
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gtk_editable_set_text (GTK_EDITABLE (page), *labels);
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title = gtk_label_new (*labels);
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gtk_notebook_append_page (GTK_NOTEBOOK (notebook), page, title);
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gtk_notebook_set_tab_reorderable (GTK_NOTEBOOK (notebook), page, TRUE);
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gtk_notebook_set_tab_detachable (GTK_NOTEBOOK (notebook), page, TRUE);
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labels++;
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}
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g_signal_connect (GTK_NOTEBOOK (notebook), "page-reordered",
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G_CALLBACK (on_page_reordered), NULL);
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return notebook;
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}
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static GtkWidget*
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create_notebook_non_dragable_content (gchar **labels,
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const gchar *group,
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GtkPositionType pos)
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{
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GtkWidget *notebook, *title, *page, *action_widget;
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notebook = gtk_notebook_new ();
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gtk_widget_set_vexpand (notebook, TRUE);
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gtk_widget_set_hexpand (notebook, TRUE);
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action_widget = gtk_button_new_from_icon_name ("list-add-symbolic");
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g_signal_connect (action_widget, "clicked", G_CALLBACK (action_clicked_cb), notebook);
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gtk_notebook_set_action_widget (GTK_NOTEBOOK (notebook), action_widget, GTK_PACK_END);
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g_signal_connect (notebook, "create-window",
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G_CALLBACK (window_creation_function), NULL);
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gtk_notebook_set_tab_pos (GTK_NOTEBOOK (notebook), pos);
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gtk_notebook_set_scrollable (GTK_NOTEBOOK (notebook), TRUE);
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gtk_notebook_set_group_name (GTK_NOTEBOOK (notebook), group);
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while (*labels)
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{
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GtkWidget *button;
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button = gtk_button_new_with_label ("example content");
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/* Use GtkListBox since it bubbles up motion notify event, which can
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* experience more issues than GtkBox. */
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page = gtk_list_box_new ();
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gtk_container_add (GTK_CONTAINER (page), button);
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button = gtk_button_new_with_label ("row 2");
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gtk_container_add (GTK_CONTAINER (page), button);
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button = gtk_button_new_with_label ("third row");
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gtk_container_add (GTK_CONTAINER (page), button);
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title = gtk_label_new (*labels);
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gtk_notebook_append_page (GTK_NOTEBOOK (notebook), page, title);
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gtk_notebook_set_tab_reorderable (GTK_NOTEBOOK (notebook), page, TRUE);
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gtk_notebook_set_tab_detachable (GTK_NOTEBOOK (notebook), page, TRUE);
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labels++;
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}
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g_signal_connect (GTK_NOTEBOOK (notebook), "page-reordered",
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G_CALLBACK (on_page_reordered), NULL);
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return notebook;
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}
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static GtkWidget*
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create_notebook_with_notebooks (gchar **labels,
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const gchar *group,
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GtkPositionType pos)
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{
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GtkWidget *notebook, *title, *page;
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gint count = 0;
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notebook = gtk_notebook_new ();
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g_signal_connect (notebook, "create-window",
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G_CALLBACK (window_creation_function), NULL);
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gtk_notebook_set_tab_pos (GTK_NOTEBOOK (notebook), pos);
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gtk_notebook_set_scrollable (GTK_NOTEBOOK (notebook), TRUE);
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gtk_notebook_set_group_name (GTK_NOTEBOOK (notebook), group);
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while (*labels)
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{
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page = create_notebook (labels, group, pos);
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gtk_notebook_popup_enable (GTK_NOTEBOOK (page));
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title = gtk_label_new (*labels);
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gtk_notebook_append_page (GTK_NOTEBOOK (notebook), page, title);
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gtk_notebook_set_tab_reorderable (GTK_NOTEBOOK (notebook), page, TRUE);
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gtk_notebook_set_tab_detachable (GTK_NOTEBOOK (notebook), page, TRUE);
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count++;
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labels++;
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}
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g_signal_connect (GTK_NOTEBOOK (notebook), "page-reordered",
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G_CALLBACK (on_page_reordered), NULL);
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return notebook;
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}
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static GtkWidget*
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create_trash_button (void)
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{
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GtkWidget *button;
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GtkDropTarget *dest;
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button = gtk_button_new_with_mnemonic ("_Delete");
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dest = gtk_drop_target_new (GTK_TYPE_NOTEBOOK_PAGE, GDK_ACTION_MOVE);
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g_signal_connect (dest, "drop", G_CALLBACK (on_button_drag_drop), NULL);
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gtk_widget_add_controller (button, GTK_EVENT_CONTROLLER (dest));
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return button;
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}
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static void
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quit_cb (GtkWidget *widget,
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gpointer data)
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{
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gboolean *done = data;
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*done = TRUE;
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g_main_context_wakeup (NULL);
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}
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gint
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main (gint argc, gchar *argv[])
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{
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GtkWidget *window, *grid;
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gboolean done = FALSE;
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gtk_init ();
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window = gtk_window_new ();
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grid = gtk_grid_new ();
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gtk_grid_attach (GTK_GRID (grid),
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create_notebook_non_dragable_content (tabs1, GROUP_A, GTK_POS_TOP),
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0, 0, 1, 1);
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gtk_grid_attach (GTK_GRID (grid),
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create_notebook (tabs2, GROUP_B, GTK_POS_BOTTOM),
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0, 1, 1, 1);
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gtk_grid_attach (GTK_GRID (grid),
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create_notebook (tabs3, GROUP_B, GTK_POS_LEFT),
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1, 0, 1, 1);
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gtk_grid_attach (GTK_GRID (grid),
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create_notebook_with_notebooks (tabs4, GROUP_A, GTK_POS_RIGHT),
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1, 1, 1, 1);
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gtk_grid_attach (GTK_GRID (grid),
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create_trash_button (),
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1, 2, 1, 1);
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gtk_container_add (GTK_CONTAINER (window), grid);
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gtk_window_set_default_size (GTK_WINDOW (window), 400, 400);
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g_signal_connect (window, "destroy", G_CALLBACK (quit_cb), &done);
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gtk_widget_show (window);
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while (!done)
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g_main_context_iteration (NULL, TRUE);
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return 0;
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}
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