gtk2/demos/gtk-demo/application.c
Benjamin Otte 169203951b widget: Remove clip from size-allocate vfunc
As the clip is no longer needed, get rid of it.
2018-04-05 14:56:38 +02:00

547 lines
16 KiB
C

#include "config.h"
#include <gtk/gtk.h>
typedef GtkApplication DemoApplication;
typedef GtkApplicationClass DemoApplicationClass;
G_DEFINE_TYPE (DemoApplication, demo_application, GTK_TYPE_APPLICATION)
typedef struct {
GtkApplicationWindow parent_instance;
GtkWidget *message;
GtkWidget *infobar;
GtkWidget *status;
GtkWidget *menutool;
GMenuModel *toolmenu;
GtkTextBuffer *buffer;
int width;
int height;
gboolean maximized;
gboolean fullscreen;
} DemoApplicationWindow;
typedef GtkApplicationWindowClass DemoApplicationWindowClass;
G_DEFINE_TYPE (DemoApplicationWindow, demo_application_window, GTK_TYPE_APPLICATION_WINDOW)
static void create_window (GApplication *app, const char *contents);
static void
show_action_dialog (GSimpleAction *action)
{
const gchar *name;
GtkWidget *dialog;
name = g_action_get_name (G_ACTION (action));
dialog = gtk_message_dialog_new (NULL,
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_INFO,
GTK_BUTTONS_CLOSE,
"You activated action: \"%s\"",
name);
g_signal_connect (dialog, "response",
G_CALLBACK (gtk_widget_destroy), NULL);
gtk_widget_show (dialog);
}
static void
show_action_infobar (GSimpleAction *action,
GVariant *parameter,
gpointer data)
{
DemoApplicationWindow *window = data;
gchar *text;
const gchar *name;
const gchar *value;
name = g_action_get_name (G_ACTION (action));
value = g_variant_get_string (parameter, NULL);
text = g_strdup_printf ("You activated radio action: \"%s\".\n"
"Current value: %s", name, value);
gtk_label_set_text (GTK_LABEL (window->message), text);
gtk_widget_show (window->infobar);
g_free (text);
}
static void
activate_action (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
show_action_dialog (action);
}
static void
activate_new (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GApplication *app = user_data;
create_window (app, NULL);
}
static void
open_response_cb (GtkNativeDialog *dialog,
gint response_id,
gpointer user_data)
{
GtkFileChooserNative *native = user_data;
GApplication *app = g_object_get_data (G_OBJECT (native), "app");
GtkWidget *message_dialog;
GFile *file;
char *contents;
GError *error = NULL;
if (response_id == GTK_RESPONSE_ACCEPT)
{
file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (native));
if (g_file_load_contents (file, NULL, &contents, NULL, NULL, &error))
{
create_window (app, contents);
g_free (contents);
}
else
{
message_dialog = gtk_message_dialog_new (NULL,
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_CLOSE,
"Error loading file: \"%s\"",
error->message);
g_signal_connect (message_dialog, "response",
G_CALLBACK (gtk_widget_destroy), NULL);
gtk_widget_show (message_dialog);
g_error_free (error);
}
}
gtk_native_dialog_destroy (GTK_NATIVE_DIALOG (native));
g_object_unref (native);
}
static void
activate_open (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GApplication *app = user_data;
GtkFileChooserNative *native;
native = gtk_file_chooser_native_new ("Open File",
NULL,
GTK_FILE_CHOOSER_ACTION_OPEN,
"_Open",
"_Cancel");
g_object_set_data_full (G_OBJECT (native), "app", g_object_ref (app), g_object_unref);
g_signal_connect (native,
"response",
G_CALLBACK (open_response_cb),
native);
gtk_native_dialog_show (GTK_NATIVE_DIALOG (native));
}
static void
activate_toggle (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GVariant *state;
show_action_dialog (action);
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)
{
show_action_infobar (action, parameter, user_data);
g_action_change_state (G_ACTION (action), parameter);
}
static void
activate_about (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkWidget *window = user_data;
const gchar *authors[] = {
"Peter Mattis",
"Spencer Kimball",
"Josh MacDonald",
"and many more...",
NULL
};
const gchar *documentors[] = {
"Owen Taylor",
"Tony Gale",
"Matthias Clasen <mclasen@redhat.com>",
"and many more...",
NULL
};
gtk_show_about_dialog (GTK_WINDOW (window),
"program-name", "GTK+ Code Demos",
"version", g_strdup_printf ("%s,\nRunning against GTK+ %d.%d.%d",
PACKAGE_VERSION,
gtk_get_major_version (),
gtk_get_minor_version (),
gtk_get_micro_version ()),
"copyright", "(C) 1997-2013 The GTK+ Team",
"license-type", GTK_LICENSE_LGPL_2_1,
"website", "http://www.gtk.org",
"comments", "Program to demonstrate GTK+ functions.",
"authors", authors,
"documenters", documentors,
"logo-icon-name", "gtk4-demo",
"title", "About GTK+ Code Demos",
NULL);
}
static void
activate_quit (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkApplication *app = user_data;
GtkWidget *win;
GList *list, *next;
list = gtk_application_get_windows (app);
while (list)
{
win = list->data;
next = list->next;
gtk_widget_destroy (GTK_WIDGET (win));
list = next;
}
}
static void
update_statusbar (GtkTextBuffer *buffer,
DemoApplicationWindow *window)
{
gchar *msg;
gint row, col;
gint count;
GtkTextIter iter;
/* clear any previous message, underflow is allowed */
gtk_statusbar_pop (GTK_STATUSBAR (window->status), 0);
count = gtk_text_buffer_get_char_count (buffer);
gtk_text_buffer_get_iter_at_mark (buffer,
&iter,
gtk_text_buffer_get_insert (buffer));
row = gtk_text_iter_get_line (&iter);
col = gtk_text_iter_get_line_offset (&iter);
msg = g_strdup_printf ("Cursor at row %d column %d - %d chars in document",
row, col, count);
gtk_statusbar_push (GTK_STATUSBAR (window->status), 0, msg);
g_free (msg);
}
static void
mark_set_callback (GtkTextBuffer *buffer,
const GtkTextIter *new_location,
GtkTextMark *mark,
DemoApplicationWindow *window)
{
update_statusbar (buffer, window);
}
static void
change_theme_state (GSimpleAction *action,
GVariant *state,
gpointer user_data)
{
GtkSettings *settings = gtk_settings_get_default ();
g_object_set (G_OBJECT (settings),
"gtk-application-prefer-dark-theme",
g_variant_get_boolean (state),
NULL);
g_simple_action_set_state (action, state);
}
static void
change_radio_state (GSimpleAction *action,
GVariant *state,
gpointer user_data)
{
g_simple_action_set_state (action, state);
}
static GActionEntry app_entries[] = {
{ "new", activate_new, NULL, NULL, NULL },
{ "open", activate_open, NULL, NULL, NULL },
{ "save", activate_action, NULL, NULL, NULL },
{ "save-as", activate_action, NULL, NULL, NULL },
{ "quit", activate_quit, NULL, NULL, NULL },
{ "dark", activate_toggle, NULL, "false", change_theme_state }
};
static GActionEntry win_entries[] = {
{ "shape", activate_radio, "s", "'oval'", change_radio_state },
{ "bold", activate_toggle, NULL, "false", NULL },
{ "about", activate_about, NULL, NULL, NULL },
{ "file1", activate_action, NULL, NULL, NULL },
{ "logo", activate_action, NULL, NULL, NULL }
};
static void
clicked_cb (GtkWidget *widget, DemoApplicationWindow *window)
{
gtk_widget_hide (window->infobar);
}
static void
startup (GApplication *app)
{
GtkBuilder *builder;
GMenuModel *appmenu;
GMenuModel *menubar;
G_APPLICATION_CLASS (demo_application_parent_class)->startup (app);
builder = gtk_builder_new ();
gtk_builder_add_from_resource (builder, "/application_demo/menus.ui", NULL);
appmenu = (GMenuModel *)gtk_builder_get_object (builder, "appmenu");
menubar = (GMenuModel *)gtk_builder_get_object (builder, "menubar");
gtk_application_set_app_menu (GTK_APPLICATION (app), appmenu);
gtk_application_set_menubar (GTK_APPLICATION (app), menubar);
g_object_unref (builder);
}
static void
create_window (GApplication *app,
const char *content)
{
DemoApplicationWindow *window;
window = (DemoApplicationWindow *)g_object_new (demo_application_window_get_type (),
"application", app,
NULL);
if (content)
gtk_text_buffer_set_text (window->buffer, content, -1);
gtk_window_present (GTK_WINDOW (window));
}
static void
activate (GApplication *app)
{
create_window (app, NULL);
}
static void
demo_application_init (DemoApplication *app)
{
GSettings *settings;
GAction *action;
settings = g_settings_new ("org.gtk.Demo");
g_action_map_add_action_entries (G_ACTION_MAP (app),
app_entries, G_N_ELEMENTS (app_entries),
app);
action = g_settings_create_action (settings, "color");
g_action_map_add_action (G_ACTION_MAP (app), action);
g_object_unref (settings);
}
static void
demo_application_class_init (DemoApplicationClass *class)
{
GApplicationClass *app_class = G_APPLICATION_CLASS (class);
app_class->startup = startup;
app_class->activate = activate;
}
static void
demo_application_window_store_state (DemoApplicationWindow *win)
{
GSettings *settings;
settings = g_settings_new ("org.gtk.Demo");
g_settings_set (settings, "window-size", "(ii)", win->width, win->height);
g_settings_set_boolean (settings, "maximized", win->maximized);
g_settings_set_boolean (settings, "fullscreen", win->fullscreen);
g_object_unref (settings);
}
static void
demo_application_window_load_state (DemoApplicationWindow *win)
{
GSettings *settings;
settings = g_settings_new ("org.gtk.Demo");
g_settings_get (settings, "window-size", "(ii)", &win->width, &win->height);
win->maximized = g_settings_get_boolean (settings, "maximized");
win->fullscreen = g_settings_get_boolean (settings, "fullscreen");
g_object_unref (settings);
}
static void
demo_application_window_init (DemoApplicationWindow *window)
{
GtkWidget *menu;
window->width = -1;
window->height = -1;
window->maximized = FALSE;
window->fullscreen = FALSE;
gtk_widget_init_template (GTK_WIDGET (window));
menu = gtk_menu_new_from_model (window->toolmenu);
gtk_menu_tool_button_set_menu (GTK_MENU_TOOL_BUTTON (window->menutool), menu);
g_action_map_add_action_entries (G_ACTION_MAP (window),
win_entries, G_N_ELEMENTS (win_entries),
window);
}
static void
demo_application_window_constructed (GObject *object)
{
DemoApplicationWindow *window = (DemoApplicationWindow *)object;
demo_application_window_load_state (window);
gtk_window_set_default_size (GTK_WINDOW (window), window->width, window->height);
if (window->maximized)
gtk_window_maximize (GTK_WINDOW (window));
if (window->fullscreen)
gtk_window_fullscreen (GTK_WINDOW (window));
G_OBJECT_CLASS (demo_application_window_parent_class)->constructed (object);
}
static void
demo_application_window_size_allocate (GtkWidget *widget,
const GtkAllocation *allocation,
int baseline)
{
DemoApplicationWindow *window = (DemoApplicationWindow *)widget;
GTK_WIDGET_CLASS (demo_application_window_parent_class)->size_allocate (widget, allocation,
baseline);
if (!window->maximized && !window->fullscreen)
gtk_window_get_size (GTK_WINDOW (window), &window->width, &window->height);
}
static void
surface_state_changed (GtkWidget *widget)
{
DemoApplicationWindow *window = (DemoApplicationWindow *)widget;
GdkSurfaceState new_state;
new_state = gdk_surface_get_state (gtk_widget_get_surface (widget));
window->maximized = (new_state & GDK_SURFACE_STATE_MAXIMIZED) != 0;
window->fullscreen = (new_state & GDK_SURFACE_STATE_FULLSCREEN) != 0;
}
static void
demo_application_window_realize (GtkWidget *widget)
{
GTK_WIDGET_CLASS (demo_application_window_parent_class)->realize (widget);
g_signal_connect_swapped (gtk_widget_get_surface (widget), "notify::state",
G_CALLBACK (surface_state_changed), widget);
}
static void
demo_application_window_unrealize (GtkWidget *widget)
{
g_signal_handlers_disconnect_by_func (gtk_widget_get_surface (widget),
surface_state_changed, widget);
GTK_WIDGET_CLASS (demo_application_window_parent_class)->unrealize (widget);
}
static void
demo_application_window_destroy (GtkWidget *widget)
{
DemoApplicationWindow *window = (DemoApplicationWindow *)widget;
demo_application_window_store_state (window);
GTK_WIDGET_CLASS (demo_application_window_parent_class)->destroy (widget);
}
static void
demo_application_window_class_init (DemoApplicationWindowClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
object_class->constructed = demo_application_window_constructed;
widget_class->size_allocate = demo_application_window_size_allocate;
widget_class->realize = demo_application_window_realize;
widget_class->unrealize = demo_application_window_unrealize;
widget_class->destroy = demo_application_window_destroy;
gtk_widget_class_set_template_from_resource (widget_class, "/application_demo/application.ui");
gtk_widget_class_bind_template_child (widget_class, DemoApplicationWindow, message);
gtk_widget_class_bind_template_child (widget_class, DemoApplicationWindow, infobar);
gtk_widget_class_bind_template_child (widget_class, DemoApplicationWindow, status);
gtk_widget_class_bind_template_child (widget_class, DemoApplicationWindow, buffer);
gtk_widget_class_bind_template_child (widget_class, DemoApplicationWindow, menutool);
gtk_widget_class_bind_template_child (widget_class, DemoApplicationWindow, toolmenu);
gtk_widget_class_bind_template_callback (widget_class, clicked_cb);
gtk_widget_class_bind_template_callback (widget_class, update_statusbar);
gtk_widget_class_bind_template_callback (widget_class, mark_set_callback);
}
int
main (int argc, char *argv[])
{
GtkApplication *app;
app = GTK_APPLICATION (g_object_new (demo_application_get_type (),
"application-id", "org.gtk.Demo2",
"flags", G_APPLICATION_HANDLES_OPEN,
NULL));
return g_application_run (G_APPLICATION (app), 0, NULL);
}