gtk/examples/plugman.c

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17 KiB
C
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#include <stdlib.h>
#include <gtk/gtk.h>
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
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 GtkClipboard *
get_clipboard (GtkWidget *widget)
{
return gtk_widget_get_clipboard (widget, gdk_atom_intern_static_string ("CLIPBOARD"));
}
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, "plugman-text");
gtk_text_buffer_copy_clipboard (gtk_text_view_get_buffer (text),
get_clipboard ((GtkWidget*) 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, "plugman-text");
gtk_text_buffer_paste_clipboard (gtk_text_view_get_buffer (text),
get_clipboard ((GtkWidget*) text),
NULL,
TRUE);
}
static GActionEntry win_entries[] = {
{ "copy", window_copy, NULL, NULL, NULL },
{ "paste", window_paste, NULL, NULL, NULL },
{ "fullscreen", activate_toggle, NULL, "false", change_fullscreen_state }
};
static void
new_window (GApplication *app,
GFile *file)
{
GtkWidget *window, *grid, *scrolled, *view;
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), "Plugman");
grid = gtk_grid_new ();
gtk_container_add (GTK_CONTAINER (window), grid);
scrolled = gtk_scrolled_window_new (NULL, NULL);
gtk_widget_set_hexpand (scrolled, TRUE);
gtk_widget_set_vexpand (scrolled, TRUE);
view = gtk_text_view_new ();
g_object_set_data ((GObject*)window, "plugman-text", view);
gtk_container_add (GTK_CONTAINER (scrolled), view);
gtk_grid_attach (GTK_GRID (grid), scrolled, 0, 0, 1, 1);
if (file != NULL)
{
gchar *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);
}
}
gtk_widget_show_all (GTK_WIDGET (window));
}
static void
plug_man_activate (GApplication *application)
{
new_window (application, NULL);
}
static void
plug_man_open (GApplication *application,
GFile **files,
gint n_files,
const gchar *hint)
{
gint i;
for (i = 0; i < n_files; i++)
new_window (application, files[i]);
}
typedef GtkApplication PlugMan;
typedef GtkApplicationClass PlugManClass;
G_DEFINE_TYPE (PlugMan, plug_man, GTK_TYPE_APPLICATION)
static void
plug_man_finalize (GObject *object)
{
G_OBJECT_CLASS (plug_man_parent_class)->finalize (object);
}
static void
show_about (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
gtk_show_about_dialog (NULL,
"program-name", "Plugman",
"title", "About Plugman",
"comments", "A cheap Bloatpad clone.",
NULL);
}
static void
quit_app (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GList *list, *next;
GtkWindow *win;
g_print ("Going down...\n");
list = gtk_application_get_windows (GTK_APPLICATION (g_application_get_default ()));
while (list)
{
win = list->data;
next = list->next;
gtk_widget_destroy (GTK_WIDGET (win));
list = next;
}
}
static gboolean is_red_plugin_enabled;
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static gboolean is_black_plugin_enabled;
static gboolean
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plugin_enabled (const gchar *name)
{
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if (g_strcmp0 (name, "red") == 0)
return is_red_plugin_enabled;
else
return is_black_plugin_enabled;
}
static GMenuModel *
find_plugin_menu (void)
{
return (GMenuModel*) g_object_get_data (G_OBJECT (g_application_get_default ()), "plugin-menu");
}
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static void
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plugin_action (GAction *action,
GVariant *parameter,
gpointer data)
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{
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GApplication *app;
GList *list;
GtkWindow *window;
GtkWidget *text;
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GdkRGBA color;
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app = g_application_get_default ();
list = gtk_application_get_windows (GTK_APPLICATION (app));
window = GTK_WINDOW (list->data);
text = g_object_get_data ((GObject*)window, "plugman-text");
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gdk_rgba_parse (&color, g_action_get_name (action));
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS
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gtk_widget_override_color (text, 0, &color);
G_GNUC_END_IGNORE_DEPRECATIONS
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}
static void
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enable_plugin (const gchar *name)
{
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GMenuModel *plugin_menu;
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GAction *action;
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g_print ("Enabling '%s' plugin\n", name);
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action = (GAction *)g_simple_action_new (name, NULL);
g_signal_connect (action, "activate", G_CALLBACK (plugin_action), (gpointer)name);
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g_action_map_add_action (G_ACTION_MAP (g_application_get_default ()), action);
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g_print ("Actions of '%s' plugin added\n", name);
g_object_unref (action);
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plugin_menu = find_plugin_menu ();
if (plugin_menu)
{
GMenu *section;
GMenuItem *item;
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gchar *label;
gchar *action_name;
section = g_menu_new ();
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label = g_strdup_printf ("Turn text %s", name);
action_name = g_strconcat ("app.", name, NULL);
g_menu_insert (section, 0, label, action_name);
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g_free (label);
g_free (action_name);
item = g_menu_item_new_section (NULL, (GMenuModel*)section);
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g_menu_item_set_attribute (item, "id", "s", name);
g_menu_append_item (G_MENU (plugin_menu), item);
g_object_unref (item);
g_object_unref (section);
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g_print ("Menus of '%s' plugin added\n", name);
}
else
g_warning ("Plugin menu not found\n");
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if (g_strcmp0 (name, "red") == 0)
is_red_plugin_enabled = TRUE;
else
is_black_plugin_enabled = TRUE;
}
static void
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disable_plugin (const gchar *name)
{
GMenuModel *plugin_menu;
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g_print ("Disabling '%s' plugin\n", name);
plugin_menu = find_plugin_menu ();
if (plugin_menu)
{
gint i;
for (i = 0; i < g_menu_model_get_n_items (plugin_menu); i++)
{
gchar *id;
if (g_menu_model_get_item_attribute (plugin_menu, i, "id", "s", &id))
{
if (g_strcmp0 (id, name) == 0)
{
g_menu_remove (G_MENU (plugin_menu), i);
g_print ("Menus of '%s' plugin removed\n", name);
}
g_free (id);
}
}
}
else
g_warning ("Plugin menu not found\n");
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g_action_map_remove_action (G_ACTION_MAP (g_application_get_default ()), name);
g_print ("Actions of '%s' plugin removed\n", name);
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if (g_strcmp0 (name, "red") == 0)
is_red_plugin_enabled = FALSE;
else
is_black_plugin_enabled = FALSE;
}
static void
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enable_or_disable_plugin (GtkToggleButton *button,
const gchar *name)
{
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if (plugin_enabled (name))
disable_plugin (name);
else
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enable_plugin (name);
}
static void
configure_plugins (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkBuilder *builder;
GtkWidget *dialog;
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GtkWidget *check;
GError *error = NULL;
builder = gtk_builder_new ();
gtk_builder_add_from_string (builder,
"<interface>"
" <object class='GtkDialog' id='plugin-dialog'>"
" <property name='border-width'>12</property>"
" <property name='title'>Plugins</property>"
" <child internal-child='vbox'>"
" <object class='GtkBox' id='content-area'>"
" <property name='visible'>True</property>"
" <child>"
" <object class='GtkCheckButton' id='red-plugin'>"
" <property name='label' translatable='yes'>Red Plugin - turn your text red</property>"
" <property name='visible'>True</property>"
" </object>"
" </child>"
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" <child>"
" <object class='GtkCheckButton' id='black-plugin'>"
" <property name='label' translatable='yes'>Black Plugin - turn your text black</property>"
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" <property name='visible'>True</property>"
" </object>"
" </child>"
" </object>"
" </child>"
" <child internal-child='action_area'>"
" <object class='GtkButtonBox' id='action-area'>"
" <property name='visible'>True</property>"
" <child>"
" <object class='GtkButton' id='close-button'>"
" <property name='label' translatable='yes'>Close</property>"
" <property name='visible'>True</property>"
" </object>"
" </child>"
" </object>"
" </child>"
" <action-widgets>"
" <action-widget response='-5'>close-button</action-widget>"
" </action-widgets>"
" </object>"
"</interface>", -1, &error);
if (error)
{
g_warning ("%s", error->message);
g_error_free (error);
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goto out;
}
dialog = (GtkWidget *)gtk_builder_get_object (builder, "plugin-dialog");
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check = (GtkWidget *)gtk_builder_get_object (builder, "red-plugin");
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check), plugin_enabled ("red"));
g_signal_connect (check, "toggled", G_CALLBACK (enable_or_disable_plugin), "red");
check = (GtkWidget *)gtk_builder_get_object (builder, "black-plugin");
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check), plugin_enabled ("black"));
g_signal_connect (check, "toggled", G_CALLBACK (enable_or_disable_plugin), "black");
g_signal_connect (dialog, "response", G_CALLBACK (gtk_widget_destroy), NULL);
gtk_window_present (GTK_WINDOW (dialog));
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out:
g_object_unref (builder);
}
static GActionEntry app_entries[] = {
{ "about", show_about, NULL, NULL, NULL },
{ "quit", quit_app, NULL, NULL, NULL },
{ "plugins", configure_plugins, NULL, NULL, NULL },
};
static void
plug_man_startup (GApplication *application)
{
GtkBuilder *builder;
G_APPLICATION_CLASS (plug_man_parent_class)
->startup (application);
g_action_map_add_action_entries (G_ACTION_MAP (application), app_entries, G_N_ELEMENTS (app_entries), application);
builder = gtk_builder_new ();
gtk_builder_add_from_string (builder,
"<interface>"
" <menu id='app-menu'>"
" <section>"
" <item>"
" <attribute name='label' translatable='yes'>_About Plugman</attribute>"
" <attribute name='action'>app.about</attribute>"
" </item>"
" </section>"
" <section>"
" <item>"
" <attribute name='label' translatable='yes'>_Quit</attribute>"
" <attribute name='action'>app.quit</attribute>"
" <attribute name='accel'>&lt;Primary&gt;q</attribute>"
" </item>"
" </section>"
" </menu>"
" <menu id='menubar'>"
" <submenu>"
" <attribute name='label' translatable='yes'>_Edit</attribute>"
" <section>"
" <item>"
" <attribute name='label' translatable='yes'>_Copy</attribute>"
" <attribute name='action'>win.copy</attribute>"
" </item>"
" <item>"
" <attribute name='label' translatable='yes'>_Paste</attribute>"
" <attribute name='action'>win.paste</attribute>"
" </item>"
" </section>"
" <item><link name='section' id='plugins'>"
" </link></item>"
" <section>"
" <item>"
" <attribute name='label' translatable='yes'>Plugins</attribute>"
" <attribute name='action'>app.plugins</attribute>"
" </item>"
" </section>"
" </submenu>"
" <submenu>"
" <attribute name='label' translatable='yes'>_View</attribute>"
" <section>"
" <item>"
" <attribute name='label' translatable='yes'>_Fullscreen</attribute>"
" <attribute name='action'>win.fullscreen</attribute>"
" </item>"
" </section>"
" </submenu>"
" </menu>"
"</interface>", -1, NULL);
gtk_application_set_app_menu (GTK_APPLICATION (application), G_MENU_MODEL (gtk_builder_get_object (builder, "app-menu")));
gtk_application_set_menubar (GTK_APPLICATION (application), G_MENU_MODEL (gtk_builder_get_object (builder, "menubar")));
g_object_set_data_full (G_OBJECT (application), "plugin-menu", gtk_builder_get_object (builder, "plugins"), g_object_unref);
g_object_unref (builder);
}
static void
plug_man_init (PlugMan *app)
{
}
static void
plug_man_class_init (PlugManClass *class)
{
GApplicationClass *application_class = G_APPLICATION_CLASS (class);
GObjectClass *object_class = G_OBJECT_CLASS (class);
application_class->startup = plug_man_startup;
application_class->activate = plug_man_activate;
application_class->open = plug_man_open;
object_class->finalize = plug_man_finalize;
}
PlugMan *
plug_man_new (void)
{
return g_object_new (plug_man_get_type (),
"application-id", "org.gtk.Test.plugman",
"flags", G_APPLICATION_HANDLES_OPEN,
NULL);
}
int
main (int argc, char **argv)
{
PlugMan *plug_man;
int status;
const gchar *accels[] = { "F11", NULL };
plug_man = plug_man_new ();
gtk_application_set_accels_for_action (GTK_APPLICATION (plug_man),
"win.fullscreen", accels);
status = g_application_run (G_APPLICATION (plug_man), argc, argv);
g_object_unref (plug_man);
return status;
}