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gtk2/examples/bp/bloatpad.c
Matthias Clasen 9948053cd7 Deprecate GtkDialog 
GtkDialog is too flexible in terms of UI (headerbars vs action bar,
etc), and has archaic APIs. It is time to retire it.
2022-10-29 15:27:53 -04:00

720 lines
21 KiB
C
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#include <stdlib.h>
#include <gtk/gtk.h>
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
typedef struct
{
GtkApplication parent_instance;
guint quit_inhibit;
GMenu *time;
guint timeout;
} BloatPad;
typedef GtkApplicationClass BloatPadClass;
GType bloat_pad_get_type (void);
G_DEFINE_TYPE (BloatPad, bloat_pad, GTK_TYPE_APPLICATION)
static void
activate_toggle (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GVariant *state;
state = g_action_get_state (G_ACTION (action));
g_action_change_state (G_ACTION (action), g_variant_new_boolean (!g_variant_get_boolean (state)));
g_variant_unref (state);
}
static void
activate_radio (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
g_action_change_state (G_ACTION (action), parameter);
}
static void
change_fullscreen_state (GSimpleAction *action,
GVariant *state,
gpointer user_data)
{
if (g_variant_get_boolean (state))
gtk_window_fullscreen (user_data);
else
gtk_window_unfullscreen (user_data);
g_simple_action_set_state (action, state);
}
static void
change_busy_state (GSimpleAction *action,
GVariant *state,
gpointer user_data)
{
GtkWindow *window = user_data;
GApplication *application = G_APPLICATION (gtk_window_get_application (window));
/* do this twice to test multiple busy counter increases */
if (g_variant_get_boolean (state))
{
g_application_mark_busy (application);
g_application_mark_busy (application);
}
else
{
g_application_unmark_busy (application);
g_application_unmark_busy (application);
}
g_simple_action_set_state (action, state);
}
static void
change_justify_state (GSimpleAction *action,
GVariant *state,
gpointer user_data)
{
GtkTextView *text = g_object_get_data (user_data, "bloatpad-text");
const char *str;
str = g_variant_get_string (state, NULL);
if (g_str_equal (str, "left"))
gtk_text_view_set_justification (text, GTK_JUSTIFY_LEFT);
else if (g_str_equal (str, "center"))
gtk_text_view_set_justification (text, GTK_JUSTIFY_CENTER);
else if (g_str_equal (str, "right"))
gtk_text_view_set_justification (text, GTK_JUSTIFY_RIGHT);
else
/* ignore this attempted change */
return;
g_simple_action_set_state (action, state);
}
static void
window_copy (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkWindow *window = GTK_WINDOW (user_data);
GtkTextView *text = g_object_get_data ((GObject*)window, "bloatpad-text");
gtk_text_buffer_copy_clipboard (gtk_text_view_get_buffer (text),
gtk_widget_get_clipboard (GTK_WIDGET (text)));
}
static void
window_paste (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkWindow *window = GTK_WINDOW (user_data);
GtkTextView *text = g_object_get_data ((GObject*)window, "bloatpad-text");
gtk_text_buffer_paste_clipboard (gtk_text_view_get_buffer (text),
gtk_widget_get_clipboard (GTK_WIDGET (text)),
NULL,
TRUE);
}
static void
activate_clear (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkWindow *window = GTK_WINDOW (user_data);
GtkTextView *text = g_object_get_data ((GObject*)window, "bloatpad-text");
gtk_text_buffer_set_text (gtk_text_view_get_buffer (text), "", -1);
}
static void
activate_clear_all (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkApplication *app = GTK_APPLICATION (user_data);
GList *iter;
for (iter = gtk_application_get_windows (app); iter; iter = iter->next)
g_action_group_activate_action (iter->data, "clear", NULL);
}
static void
text_buffer_changed_cb (GtkTextBuffer *buffer,
gpointer user_data)
{
GtkWindow *window = user_data;
BloatPad *app;
int old_n, n;
app = (BloatPad *) gtk_window_get_application (window);
n = gtk_text_buffer_get_char_count (buffer);
if (n > 0)
{
if (!app->quit_inhibit)
app->quit_inhibit = gtk_application_inhibit (GTK_APPLICATION (app),
gtk_application_get_active_window (GTK_APPLICATION (app)),
GTK_APPLICATION_INHIBIT_LOGOUT,
"bloatpad can't save, so you can't logout; erase your text");
}
else
{
if (app->quit_inhibit)
{
gtk_application_uninhibit (GTK_APPLICATION (app), app->quit_inhibit);
app->quit_inhibit = 0;
}
}
g_simple_action_set_enabled (G_SIMPLE_ACTION (g_action_map_lookup_action (G_ACTION_MAP (window), "clear")), n > 0);
if (n > 0)
{
GSimpleAction *spellcheck;
spellcheck = g_simple_action_new ("spell-check", NULL);
g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (spellcheck));
}
else
g_action_map_remove_action (G_ACTION_MAP (window), "spell-check");
old_n = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (buffer), "line-count"));
n = gtk_text_buffer_get_line_count (buffer);
g_object_set_data (G_OBJECT (buffer), "line-count", GINT_TO_POINTER (n));
if (old_n < 3 && n == 3)
{
GNotification *notification = g_notification_new ("Three lines of text");
g_notification_set_body (notification, "Keep up the good work!");
g_notification_add_button (notification, "Start over", "app.clear-all");
g_application_send_notification (G_APPLICATION (app), "three-lines", notification);
g_object_unref (notification);
}
}
static void
fullscreen_changed (GObject *object,
GParamSpec *pspec,
gpointer user_data)
{
if (gtk_window_is_fullscreen (GTK_WINDOW (object)))
gtk_button_set_icon_name (GTK_BUTTON (user_data), "view-restore-symbolic");
else
gtk_button_set_icon_name (GTK_BUTTON (user_data), "view-fullscreen-symbolic");
}
static GActionEntry win_entries[] = {
{ "copy", window_copy, NULL, NULL, NULL },
{ "paste", window_paste, NULL, NULL, NULL },
{ "fullscreen", activate_toggle, NULL, "false", change_fullscreen_state },
{ "busy", activate_toggle, NULL, "false", change_busy_state },
{ "justify", activate_radio, "s", "'left'", change_justify_state },
{ "clear", activate_clear, NULL, NULL, NULL }
};
static void
new_window (GApplication *app,
GFile *file)
{
GtkWidget *window, *grid, *scrolled, *view;
GtkWidget *toolbar;
GtkWidget *button;
window = gtk_application_window_new (GTK_APPLICATION (app));
gtk_window_set_default_size ((GtkWindow*)window, 640, 480);
g_action_map_add_action_entries (G_ACTION_MAP (window), win_entries, G_N_ELEMENTS (win_entries), window);
gtk_window_set_title (GTK_WINDOW (window), "Bloatpad");
gtk_application_window_set_show_menubar (GTK_APPLICATION_WINDOW (window), TRUE);
grid = gtk_grid_new ();
gtk_window_set_child (GTK_WINDOW (window), grid);
toolbar = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_widget_add_css_class (toolbar, "toolbar");
button = gtk_toggle_button_new ();
gtk_button_set_icon_name (GTK_BUTTON (button), "format-justify-left");
gtk_actionable_set_detailed_action_name (GTK_ACTIONABLE (button), "win.justify::left");
gtk_box_append (GTK_BOX (toolbar), button);
button = gtk_toggle_button_new ();
gtk_button_set_icon_name (GTK_BUTTON (button), "format-justify-center");
gtk_actionable_set_detailed_action_name (GTK_ACTIONABLE (button), "win.justify::center");
gtk_box_append (GTK_BOX (toolbar), button);
button = gtk_toggle_button_new ();
gtk_button_set_icon_name (GTK_BUTTON (button), "format-justify-right");
gtk_actionable_set_detailed_action_name (GTK_ACTIONABLE (button), "win.justify::right");
gtk_box_append (GTK_BOX (toolbar), button);
button = gtk_toggle_button_new ();
gtk_button_set_icon_name (GTK_BUTTON (button), "view-fullscreen-symbolic");
gtk_actionable_set_action_name (GTK_ACTIONABLE (button), "win.fullscreen");
gtk_box_append (GTK_BOX (toolbar), button);
g_signal_connect (window, "notify::fullscreened", G_CALLBACK (fullscreen_changed), button);
gtk_grid_attach (GTK_GRID (grid), toolbar, 0, 0, 1, 1);
scrolled = gtk_scrolled_window_new ();
gtk_widget_set_hexpand (scrolled, TRUE);
gtk_widget_set_vexpand (scrolled, TRUE);
gtk_scrolled_window_set_has_frame (GTK_SCROLLED_WINDOW (scrolled), TRUE);
view = gtk_text_view_new ();
g_object_set_data ((GObject*)window, "bloatpad-text", view);
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (scrolled), view);
gtk_grid_attach (GTK_GRID (grid), scrolled, 0, 1, 1, 1);
if (file != NULL)
{
char *contents;
gsize length;
if (g_file_load_contents (file, NULL, &contents, &length, NULL, NULL))
{
GtkTextBuffer *buffer;
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
gtk_text_buffer_set_text (buffer, contents, length);
g_free (contents);
}
}
g_signal_connect (gtk_text_view_get_buffer (GTK_TEXT_VIEW (view)), "changed",
G_CALLBACK (text_buffer_changed_cb), window);
text_buffer_changed_cb (gtk_text_view_get_buffer (GTK_TEXT_VIEW (view)), window);
gtk_widget_show (GTK_WIDGET (window));
}
static void
bloat_pad_activate (GApplication *application)
{
new_window (application, NULL);
}
static void
bloat_pad_open (GApplication *application,
GFile **files,
int n_files,
const char *hint)
{
int i;
for (i = 0; i < n_files; i++)
new_window (application, files[i]);
}
static void
bloat_pad_finalize (GObject *object)
{
G_OBJECT_CLASS (bloat_pad_parent_class)->finalize (object);
}
static void
new_activated (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GApplication *app = user_data;
g_application_activate (app);
}
static void
about_activated (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
gtk_show_about_dialog (NULL,
"program-name", "Bloatpad",
"title", "About Bloatpad",
"comments", "Not much to say, really.",
NULL);
}
static void
quit_activated (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GApplication *app = user_data;
g_application_quit (app);
}
static void
combo_changed (GtkDropDown *combo,
GParamSpec *pspec,
gpointer user_data)
{
GtkDialog *dialog = user_data;
GtkEntry *entry = g_object_get_data (user_data, "entry");
const char *action;
char **accels;
char *str;
action = gtk_string_object_get_string (GTK_STRING_OBJECT (gtk_drop_down_get_selected_item (combo)));
if (!action)
return;
accels = gtk_application_get_accels_for_action (gtk_window_get_application (user_data), action);
str = g_strjoinv (",", accels);
g_strfreev (accels);
gtk_editable_set_text (GTK_EDITABLE (entry), str);
gtk_dialog_set_response_sensitive (dialog, GTK_RESPONSE_APPLY, FALSE);
}
static void
entry_changed (GtkEntry *entry,
GParamSpec *pspec,
gpointer user_data)
{
GtkDialog *dialog = user_data;
gtk_dialog_set_response_sensitive (dialog, GTK_RESPONSE_APPLY, TRUE);
}
static void
response (GtkDialog *dialog,
guint response_id,
gpointer user_data)
{
GtkEntry *entry = g_object_get_data (user_data, "entry");
GtkDropDown *combo = g_object_get_data (user_data, "combo");
const char *action;
const char *str;
char **accels;
if (response_id == GTK_RESPONSE_CANCEL)
{
gtk_window_destroy (GTK_WINDOW (dialog));
return;
}
action = gtk_string_object_get_string (GTK_STRING_OBJECT (gtk_drop_down_get_selected_item (combo)));
if (!action)
return;
str = gtk_editable_get_text (GTK_EDITABLE (entry));
accels = g_strsplit (str, ",", 0);
gtk_application_set_accels_for_action (gtk_window_get_application (user_data), action, (const char **) accels);
g_strfreev (accels);
gtk_dialog_set_response_sensitive (dialog, GTK_RESPONSE_APPLY, FALSE);
}
static void
edit_accels (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkApplication *app = user_data;
GtkWidget *combo;
GtkWidget *entry;
char **actions;
GtkWidget *dialog;
int i;
GtkStringList *strings;
dialog = gtk_dialog_new_with_buttons ("Accelerators",
NULL,
GTK_DIALOG_USE_HEADER_BAR,
"Close", GTK_RESPONSE_CANCEL,
"Set", GTK_RESPONSE_APPLY,
NULL);
gtk_window_set_application (GTK_WINDOW (dialog), app);
actions = gtk_application_list_action_descriptions (app);
strings = gtk_string_list_new (NULL);
combo = gtk_drop_down_new (G_LIST_MODEL (strings), NULL);
g_object_set (gtk_dialog_get_content_area (GTK_DIALOG (dialog)),
"margin-top", 10,
"margin-bottom", 10,
"margin-start", 10,
"margin-end", 10,
"spacing", 10,
NULL);
gtk_box_append (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))), combo);
for (i = 0; actions[i]; i++)
gtk_string_list_append (strings, actions[i]);
g_signal_connect (combo, "notify::selected", G_CALLBACK (combo_changed), dialog);
entry = gtk_entry_new ();
gtk_widget_set_hexpand (entry, TRUE);
g_signal_connect (entry, "notify::text", G_CALLBACK (entry_changed), dialog);
gtk_box_append (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))), entry);
g_signal_connect (dialog, "response", G_CALLBACK (response), dialog);
g_object_set_data (G_OBJECT (dialog), "combo", combo);
g_object_set_data (G_OBJECT (dialog), "entry", entry);
gtk_drop_down_set_selected (GTK_DROP_DOWN (combo), 0);
gtk_widget_show (dialog);
}
static gboolean
update_time (gpointer user_data)
{
BloatPad *bloatpad = user_data;
GDateTime *now;
char *time;
while (g_menu_model_get_n_items (G_MENU_MODEL (bloatpad->time)))
g_menu_remove (bloatpad->time, 0);
g_message ("Updating the time menu (which should be open now)...");
now = g_date_time_new_now_local ();
time = g_date_time_format (now, "%c");
g_menu_append (bloatpad->time, time, NULL);
g_date_time_unref (now);
g_free (time);
return G_SOURCE_CONTINUE;
}
static void
time_active_changed (GSimpleAction *action,
GVariant *state,
gpointer user_data)
{
BloatPad *bloatpad = user_data;
if (g_variant_get_boolean (state))
{
if (!bloatpad->timeout)
{
bloatpad->timeout = g_timeout_add (1000, update_time, bloatpad);
update_time (bloatpad);
}
}
else
{
if (bloatpad->timeout)
{
g_source_remove (bloatpad->timeout);
bloatpad->timeout = 0;
}
}
g_simple_action_set_state (action, state);
}
static GActionEntry app_entries[] = {
{ "new", new_activated, NULL, NULL, NULL },
{ "about", about_activated, NULL, NULL, NULL },
{ "quit", quit_activated, NULL, NULL, NULL },
{ "edit-accels", edit_accels },
{ "time-active", NULL, NULL, "false", time_active_changed },
{ "clear-all", activate_clear_all }
};
static void
dump_accels (GtkApplication *app)
{
char **actions;
int i;
actions = gtk_application_list_action_descriptions (app);
for (i = 0; actions[i]; i++)
{
char **accels;
char *str;
accels = gtk_application_get_accels_for_action (app, actions[i]);
str = g_strjoinv (",", accels);
g_print ("%s -> %s\n", actions[i], str);
g_strfreev (accels);
g_free (str);
}
g_strfreev (actions);
}
static void
bloat_pad_startup (GApplication *application)
{
BloatPad *bloatpad = (BloatPad*) application;
GtkApplication *app = GTK_APPLICATION (application);
GMenu *menu;
GMenuItem *item;
GBytes *bytes;
GIcon *icon;
GIcon *icon2;
GEmblem *emblem;
GFile *file;
int i;
struct {
const char *action_and_target;
const char *accelerators[2];
} accels[] = {
{ "app.new", { "<Control>n", NULL } },
{ "app.quit", { "<Control>q", NULL } },
{ "win.copy", { "<Control>c", NULL } },
{ "win.paste", { "<Control>p", NULL } },
{ "win.justify::left", { "<Control>l", NULL } },
{ "win.justify::center", { "<Control>m", NULL } },
{ "win.justify::right", { "<Control>r", NULL } }
};
G_APPLICATION_CLASS (bloat_pad_parent_class)
->startup (application);
g_action_map_add_action_entries (G_ACTION_MAP (application), app_entries, G_N_ELEMENTS (app_entries), application);
for (i = 0; i < G_N_ELEMENTS (accels); i++)
gtk_application_set_accels_for_action (app, accels[i].action_and_target, accels[i].accelerators);
menu = gtk_application_get_menu_by_id (GTK_APPLICATION (application), "icon-menu");
file = g_file_new_for_uri ("resource:///org/gtk/libgtk/icons/16x16/actions/insert-image.png");
icon = g_file_icon_new (file);
item = g_menu_item_new ("File Icon", NULL);
g_menu_item_set_icon (item, icon);
g_menu_append_item (menu, item);
g_object_unref (item);
g_object_unref (icon);
g_object_unref (file);
icon = g_themed_icon_new ("edit-find");
item = g_menu_item_new ("Themed Icon", NULL);
g_menu_item_set_icon (item, icon);
g_menu_append_item (menu, item);
g_object_unref (item);
g_object_unref (icon);
bytes = g_resources_lookup_data ("/org/gtk/libgtk/icons/16x16/actions/media-eject.png", 0, NULL);
icon = g_bytes_icon_new (bytes);
item = g_menu_item_new ("Bytes Icon", NULL);
g_menu_item_set_icon (item, icon);
g_menu_append_item (menu, item);
g_object_unref (item);
g_object_unref (icon);
g_bytes_unref (bytes);
icon = G_ICON (gdk_texture_new_from_resource ("/org/gtk/libgtk/icons/16x16/actions/folder-new.png"));
item = g_menu_item_new ("Texture", NULL);
g_menu_item_set_icon (item, icon);
g_menu_append_item (menu, item);
g_object_unref (item);
g_object_unref (icon);
file = g_file_new_for_uri ("resource:///org/gtk/libgtk/icons/16x16/actions/bookmark-new.png");
icon = g_file_icon_new (file);
emblem = g_emblem_new (icon);
g_object_unref (icon);
g_object_unref (file);
file = g_file_new_for_uri ("resource:///org/gtk/libgtk/icons/16x16/actions/dialog-warning.png");
icon2 = g_file_icon_new (file);
icon = g_emblemed_icon_new (icon2, emblem);
item = g_menu_item_new ("Emblemed Icon", NULL);
g_menu_item_set_icon (item, icon);
g_menu_append_item (menu, item);
g_object_unref (item);
g_object_unref (icon);
g_object_unref (icon2);
g_object_unref (file);
g_object_unref (emblem);
icon = g_themed_icon_new ("weather-severe-alert-symbolic");
item = g_menu_item_new ("Symbolic Icon", NULL);
g_menu_item_set_icon (item, icon);
g_menu_append_item (menu, item);
g_object_unref (item);
g_object_unref (icon);
const char *new_accels[] = { "<Control>n", "<Control>t", NULL };
gtk_application_set_accels_for_action (GTK_APPLICATION (application), "app.new", new_accels);
dump_accels (GTK_APPLICATION (application));
//gtk_application_set_menubar (GTK_APPLICATION (application), G_MENU_MODEL (gtk_builder_get_object (builder, "app-menu")));
bloatpad->time = gtk_application_get_menu_by_id (GTK_APPLICATION (application), "time-menu");
}
static void
bloat_pad_shutdown (GApplication *application)
{
BloatPad *bloatpad = (BloatPad *) application;
if (bloatpad->timeout)
{
g_source_remove (bloatpad->timeout);
bloatpad->timeout = 0;
}
G_APPLICATION_CLASS (bloat_pad_parent_class)
->shutdown (application);
}
static void
bloat_pad_init (BloatPad *app)
{
}
static void
bloat_pad_class_init (BloatPadClass *class)
{
GApplicationClass *application_class = G_APPLICATION_CLASS (class);
GObjectClass *object_class = G_OBJECT_CLASS (class);
application_class->startup = bloat_pad_startup;
application_class->shutdown = bloat_pad_shutdown;
application_class->activate = bloat_pad_activate;
application_class->open = bloat_pad_open;
object_class->finalize = bloat_pad_finalize;
}
static BloatPad *
bloat_pad_new (void)
{
BloatPad *bloat_pad;
g_set_application_name ("Bloatpad");
bloat_pad = g_object_new (bloat_pad_get_type (),
"application-id", "org.gtk.bloatpad",
"flags", G_APPLICATION_HANDLES_OPEN,
"inactivity-timeout", 30000,
"register-session", TRUE,
NULL);
return bloat_pad;
}
int
main (int argc, char **argv)
{
BloatPad *bloat_pad;
int status;
const char *accels[] = { "F11", NULL };
bloat_pad = bloat_pad_new ();
gtk_application_set_accels_for_action (GTK_APPLICATION (bloat_pad),
"win.fullscreen", accels);
status = g_application_run (G_APPLICATION (bloat_pad), argc, argv);
g_object_unref (bloat_pad);
return status;
}
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