gtk2/demos/gtk-demo/main.c
Matthias Clasen 3aa3c21d69 demos: Add devel styling
Add a -Dprofile=devel meson option, and add some visual
hints to the demos that you are running a nightly build.
2021-02-12 00:08:55 -05:00

1119 lines
29 KiB
C
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* GTK Demo
*
* GTK Demo is a collection of useful examples to demonstrate
* GTK widgets and features. It is a useful example in itself.
*
* You can select examples in the sidebar or search for them by
* typing a search term. Double-clicking or hitting the “Run” button
* will run the demo. The source code and other resources used in the
* demo are shown in this area.
*
* You can also use the GTK Inspector, available from the menu on the
* top right, to poke at the running demos, and see how they are put
* together.
*/
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
#include <gtk/gtk.h>
#include <glib/gstdio.h>
#include "demos.h"
#include "fontify.h"
#include "demo_conf.h"
static GtkWidget *info_view;
static GtkWidget *source_view;
static char *current_file = NULL;
static GtkWidget *notebook;
static GtkSingleSelection *selection;
static GtkWidget *toplevel;
static char **search_needle;
typedef struct _GtkDemo GtkDemo;
struct _GtkDemo
{
GObject parent_instance;
const char *name;
const char *title;
const char **keywords;
const char *filename;
GDoDemoFunc func;
GListModel *children_model;
};
enum {
PROP_0,
PROP_FILENAME,
PROP_NAME,
PROP_TITLE,
PROP_KEYWORDS,
N_PROPS
};
# define GTK_TYPE_DEMO (gtk_demo_get_type ())
G_DECLARE_FINAL_TYPE (GtkDemo, gtk_demo, GTK, DEMO, GObject);
G_DEFINE_TYPE (GtkDemo, gtk_demo, G_TYPE_OBJECT);
static GParamSpec *properties[N_PROPS] = { NULL, };
static void
gtk_demo_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GtkDemo *self = GTK_DEMO (object);
switch (property_id)
{
case PROP_FILENAME:
g_value_set_string (value, self->filename);
break;
case PROP_NAME:
g_value_set_string (value, self->name);
break;
case PROP_TITLE:
g_value_set_string (value, self->title);
break;
case PROP_KEYWORDS:
g_value_set_boxed (value, self->keywords);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void gtk_demo_class_init (GtkDemoClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->get_property = gtk_demo_get_property;
properties[PROP_FILENAME] =
g_param_spec_string ("filename",
"filename",
"filename",
NULL,
G_PARAM_READABLE);
properties[PROP_NAME] =
g_param_spec_string ("name",
"name",
"name",
NULL,
G_PARAM_READABLE);
properties[PROP_TITLE] =
g_param_spec_string ("title",
"title",
"title",
NULL,
G_PARAM_READABLE);
properties[PROP_KEYWORDS] =
g_param_spec_string ("keywords",
"keywords",
"keywords",
NULL,
G_PARAM_READABLE);
g_object_class_install_properties (gobject_class, N_PROPS, properties);
}
static void gtk_demo_init (GtkDemo *self)
{
}
typedef struct _CallbackData CallbackData;
struct _CallbackData
{
GtkTreeModel *model;
GtkTreePath *path;
};
static gboolean
gtk_demo_run (GtkDemo *self,
GtkWidget *window)
{
GtkWidget *result;
if (!self->func)
return FALSE;
result = self->func (window);
if (result == NULL)
return FALSE;
if (GTK_IS_WINDOW (result))
{
gtk_window_set_transient_for (GTK_WINDOW (result), GTK_WINDOW (window));
gtk_window_set_modal (GTK_WINDOW (result), TRUE);
}
return TRUE;
}
static void
activate_about (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkApplication *app = user_data;
const char *authors[] = {
"The GTK Team",
NULL
};
char *version;
char *os_name;
char *os_version;
GString *s;
s = g_string_new ("");
os_name = g_get_os_info (G_OS_INFO_KEY_NAME);
os_version = g_get_os_info (G_OS_INFO_KEY_VERSION_ID);
if (os_name && os_version)
g_string_append_printf (s, "OS\t%s %s\n\n", os_name, os_version);
g_string_append (s, "System libraries\n");
g_string_append_printf (s, "\tGLib\t%d.%d.%d\n",
glib_major_version,
glib_minor_version,
glib_micro_version);
g_string_append_printf (s, "\tPango\t%s\n",
pango_version_string ());
g_string_append_printf (s, "\tGTK\t%d.%d.%d\n",
gtk_get_major_version (),
gtk_get_minor_version (),
gtk_get_micro_version ());
g_string_append_printf (s, "\nA link can appear here: <http://www.gtk.org>");
version = g_strdup_printf ("%s%s%s\nRunning against GTK %d.%d.%d",
PACKAGE_VERSION,
g_strcmp0 (PROFILE, "devel") == 0 ? "-" : "",
g_strcmp0 (PROFILE, "devel") == 0 ? VCS_TAG : "",
gtk_get_major_version (),
gtk_get_minor_version (),
gtk_get_micro_version ());
gtk_show_about_dialog (GTK_WINDOW (gtk_application_get_active_window (app)),
"program-name", g_strcmp0 (PROFILE, "devel") == 0
? "GTK Demo (Development)"
: "GTK Demo",
"version", version,
"copyright", "©1997—2021 The GTK Team",
"license-type", GTK_LICENSE_LGPL_2_1,
"website", "http://www.gtk.org",
"comments", "Program to demonstrate GTK widgets",
"authors", authors,
"logo-icon-name", "org.gtk.Demo4",
"title", "About GTK Demo",
"system-information", s->str,
NULL);
g_string_free (s, TRUE);
g_free (version);
g_free (os_name);
g_free (os_version);
}
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_window_destroy (GTK_WINDOW (win));
list = next;
}
}
static void
activate_inspector (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
gtk_window_set_interactive_debugging (TRUE);
}
static void
activate_run (GSimpleAction *action,
GVariant *parameter,
gpointer window)
{
GtkTreeListRow *row = gtk_single_selection_get_selected_item (selection);
GtkDemo *demo = gtk_tree_list_row_get_item (row);
gtk_demo_run (demo, window);
}
static GtkWidget *
display_image (const char *format,
const char *resource,
char **label)
{
GtkWidget *sw, *image;
image = gtk_picture_new_for_resource (resource);
gtk_widget_set_halign (image, GTK_ALIGN_CENTER);
gtk_widget_set_valign (image, GTK_ALIGN_CENTER);
sw = gtk_scrolled_window_new ();
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), image);
return sw;
}
static GtkWidget *
display_images (const char *format,
const char *resource_dir,
char **label)
{
char **resources;
GtkWidget *grid;
GtkWidget *sw;
GtkWidget *widget;
guint i;
resources = g_resources_enumerate_children (resource_dir, 0, NULL);
if (resources == NULL)
return NULL;
sw = gtk_scrolled_window_new ();
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
GTK_POLICY_NEVER,
GTK_POLICY_AUTOMATIC);
grid = gtk_flow_box_new ();
gtk_flow_box_set_selection_mode (GTK_FLOW_BOX (grid), GTK_SELECTION_NONE);
gtk_widget_set_valign (grid, GTK_ALIGN_START);
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), grid);
for (i = 0; resources[i]; i++)
{
char *resource_name;
GtkWidget *box;
resource_name = g_strconcat (resource_dir, "/", resources[i], NULL);
widget = display_image (NULL, resource_name, NULL);
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_box_append (GTK_BOX (box), widget);
gtk_box_append (GTK_BOX (box), gtk_label_new (resources[i]));
gtk_flow_box_insert (GTK_FLOW_BOX (grid), box, -1);
g_free (resource_name);
}
g_strfreev (resources);
*label = g_strdup ("Images");
return sw;
}
static GtkWidget *
display_text (const char *format,
const char *resource,
char **label)
{
GtkTextBuffer *buffer;
GtkWidget *textview, *sw;
GBytes *bytes;
const char *text;
gsize len;
bytes = g_resources_lookup_data (resource, 0, NULL);
g_assert (bytes);
text = g_bytes_get_data (bytes, &len);
g_assert (g_utf8_validate (text, len, NULL));
textview = gtk_text_view_new ();
gtk_text_view_set_left_margin (GTK_TEXT_VIEW (textview), 20);
gtk_text_view_set_right_margin (GTK_TEXT_VIEW (textview), 20);
gtk_text_view_set_top_margin (GTK_TEXT_VIEW (textview), 20);
gtk_text_view_set_bottom_margin (GTK_TEXT_VIEW (textview), 20);
gtk_text_view_set_editable (GTK_TEXT_VIEW (textview), FALSE);
gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (textview), FALSE);
/* Make it a bit nicer for text. */
gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (textview), GTK_WRAP_WORD);
gtk_text_view_set_pixels_above_lines (GTK_TEXT_VIEW (textview), 2);
gtk_text_view_set_pixels_below_lines (GTK_TEXT_VIEW (textview), 2);
gtk_text_view_set_monospace (GTK_TEXT_VIEW (textview), TRUE);
buffer = gtk_text_buffer_new (NULL);
gtk_text_buffer_set_text (buffer, text, len);
g_bytes_unref (bytes);
if (format)
fontify (format, buffer);
gtk_text_view_set_buffer (GTK_TEXT_VIEW (textview), buffer);
sw = gtk_scrolled_window_new ();
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), textview);
return sw;
}
static GtkWidget *
display_video (const char *format,
const char *resource,
char **label)
{
GtkWidget *video;
video = gtk_video_new_for_resource (resource);
gtk_video_set_loop (GTK_VIDEO (video), TRUE);
return video;
}
static GtkWidget *
display_nothing (const char *resource)
{
GtkWidget *widget;
char *str;
str = g_strdup_printf ("The contents of the resource at '%s' cannot be displayed", resource);
widget = gtk_label_new (str);
gtk_label_set_wrap (GTK_LABEL (widget), TRUE);
g_free (str);
return widget;
}
static struct {
const char *extension;
const char *format;
GtkWidget * (* display_func) (const char *format,
const char *resource,
char **label);
} display_funcs[] = {
{ ".gif", NULL, display_image },
{ ".jpg", NULL, display_image },
{ ".png", NULL, display_image },
{ ".svg", NULL, display_image },
{ ".c", "c", display_text },
{ ".css", "css", display_text },
{ ".glsl", NULL, display_text },
{ ".h", "c", display_text },
{ ".txt", NULL, display_text },
{ ".ui", "xml", display_text },
{ ".webm", NULL, display_video },
{ "images/", NULL, display_images }
};
static void
add_data_tab (const char *demoname)
{
char *resource_dir, *resource_name;
char **resources;
GtkWidget *widget, *label;
guint i, j;
char *label_string;
resource_dir = g_strconcat ("/", demoname, NULL);
resources = g_resources_enumerate_children (resource_dir, 0, NULL);
if (resources == NULL)
{
g_free (resource_dir);
return;
}
for (i = 0; resources[i]; i++)
{
resource_name = g_strconcat (resource_dir, "/", resources[i], NULL);
for (j = 0; j < G_N_ELEMENTS (display_funcs); j++)
{
if (g_str_has_suffix (resource_name, display_funcs[j].extension))
break;
}
label_string = NULL;
if (j < G_N_ELEMENTS (display_funcs))
widget = display_funcs[j].display_func (display_funcs[j].format,
resource_name,
&label_string);
else
widget = display_nothing (resource_name);
label = gtk_label_new (label_string ? label_string : resources[i]);
gtk_widget_show (label);
gtk_notebook_append_page (GTK_NOTEBOOK (notebook), widget, label);
g_object_set (gtk_notebook_get_page (GTK_NOTEBOOK (notebook), widget),
"tab-expand", FALSE,
NULL);
g_free (resource_name);
g_free (label_string);
}
g_strfreev (resources);
g_free (resource_dir);
}
static void
remove_data_tabs (void)
{
int i;
for (i = gtk_notebook_get_n_pages (GTK_NOTEBOOK (notebook)) - 1; i > 1; i--)
gtk_notebook_remove_page (GTK_NOTEBOOK (notebook), i);
}
void
load_file (const char *demoname,
const char *filename)
{
GtkTextBuffer *info_buffer, *source_buffer;
GtkTextIter start, end;
char *resource_filename;
GError *err = NULL;
int state = 0;
gboolean in_para = 0;
char **lines;
GBytes *bytes;
int i;
if (!g_strcmp0 (current_file, filename))
return;
remove_data_tabs ();
add_data_tab (demoname);
g_free (current_file);
current_file = g_strdup (filename);
info_buffer = gtk_text_buffer_new (NULL);
gtk_text_buffer_create_tag (info_buffer, "title",
"font", "Sans 18",
"pixels-below-lines", 10,
NULL);
source_buffer = gtk_text_buffer_new (NULL);
gtk_text_buffer_begin_irreversible_action (info_buffer);
gtk_text_buffer_begin_irreversible_action (source_buffer);
resource_filename = g_strconcat ("/sources/", filename, NULL);
bytes = g_resources_lookup_data (resource_filename, 0, &err);
g_free (resource_filename);
if (bytes == NULL)
{
g_warning ("Cannot open source for %s: %s", filename, err->message);
g_error_free (err);
return;
}
lines = g_strsplit (g_bytes_get_data (bytes, NULL), "\n", -1);
g_bytes_unref (bytes);
gtk_text_buffer_get_iter_at_offset (info_buffer, &start, 0);
for (i = 0; lines[i] != NULL; i++)
{
char *p;
char *q;
char *r;
/* Make sure \r is stripped at the end for the poor windows people */
lines[i] = g_strchomp (lines[i]);
p = lines[i];
switch (state)
{
case 0:
/* Reading title */
while (*p == '/' || *p == '*' || g_ascii_isspace (*p))
p++;
r = p;
while (*r != '\0')
{
while (*r != '/' && *r != ':' && *r != '\0')
r++;
if (*r == '/')
{
r++;
p = r;
}
if (r[0] == ':' && r[1] == ':')
*r = '\0';
}
q = p + strlen (p);
while (q > p && g_ascii_isspace (*(q - 1)))
q--;
if (q > p)
{
int len_chars = g_utf8_pointer_to_offset (p, q);
end = start;
g_assert (strlen (p) >= q - p);
gtk_text_buffer_insert (info_buffer, &end, p, q - p);
start = end;
gtk_text_iter_backward_chars (&start, len_chars);
gtk_text_buffer_apply_tag_by_name (info_buffer, "title", &start, &end);
start = end;
while (*p && *p != '\n') p++;
state++;
}
break;
case 1:
/* Reading body of info section */
while (g_ascii_isspace (*p))
p++;
if (*p == '*' && *(p + 1) == '/')
{
gtk_text_buffer_get_iter_at_offset (source_buffer, &start, 0);
state++;
}
else
{
int len;
while (*p == '*' || g_ascii_isspace (*p))
p++;
len = strlen (p);
while (g_ascii_isspace (*(p + len - 1)))
len--;
if (*p == '#')
break;
if (len > 0)
{
if (in_para)
gtk_text_buffer_insert (info_buffer, &start, " ", 1);
g_assert (strlen (p) >= len);
gtk_text_buffer_insert (info_buffer, &start, p, len);
in_para = 1;
}
else
{
gtk_text_buffer_insert (info_buffer, &start, "\n", 1);
in_para = 0;
}
}
break;
case 2:
/* Skipping blank lines */
while (g_ascii_isspace (*p))
p++;
if (!*p)
break;
p = lines[i];
state++;
G_GNUC_FALLTHROUGH;
case 3:
/* Reading program body */
gtk_text_buffer_insert (source_buffer, &start, p, -1);
if (lines[i+1] != NULL)
gtk_text_buffer_insert (source_buffer, &start, "\n", 1);
break;
default:
g_assert_not_reached ();
}
}
g_strfreev (lines);
fontify ("c", source_buffer);
gtk_text_buffer_end_irreversible_action (source_buffer);
gtk_text_view_set_buffer (GTK_TEXT_VIEW (source_view), source_buffer);
g_object_unref (source_buffer);
gtk_text_buffer_end_irreversible_action (info_buffer);
gtk_text_view_set_buffer (GTK_TEXT_VIEW (info_view), info_buffer);
g_object_unref (info_buffer);
}
static void
activate_cb (GtkWidget *widget,
guint position,
gpointer window)
{
GListModel *model = G_LIST_MODEL (gtk_list_view_get_model (GTK_LIST_VIEW (widget)));
GtkTreeListRow *row = g_list_model_get_item (model, position);
GtkDemo *demo = gtk_tree_list_row_get_item (row);
gtk_demo_run (demo, window);
g_object_unref (row);
}
static void
selection_cb (GtkSingleSelection *sel,
GParamSpec *pspec,
gpointer user_data)
{
GtkTreeListRow *row = gtk_single_selection_get_selected_item (sel);
GtkDemo *demo;
GAction *action;
gtk_widget_set_sensitive (GTK_WIDGET (notebook), !!row);
if (!row)
{
gtk_window_set_title (GTK_WINDOW (toplevel), "No match");
return;
}
demo = gtk_tree_list_row_get_item (row);
if (demo->filename)
load_file (demo->name, demo->filename);
action = g_action_map_lookup_action (G_ACTION_MAP (toplevel), "run");
g_simple_action_set_enabled (G_SIMPLE_ACTION (action), demo->func != NULL);
gtk_window_set_title (GTK_WINDOW (toplevel), demo->title);
}
static gboolean
filter_demo (GtkDemo *demo)
{
int i;
/* Show only if the name matches every needle */
for (i = 0; search_needle[i]; i++)
{
if (!demo->title)
return FALSE;
if (g_str_match_string (search_needle[i], demo->title, TRUE))
continue;
if (demo->keywords)
{
int j;
gboolean found = FALSE;
for (j = 0; !found && demo->keywords[j]; j++)
{
if (strstr (demo->keywords[j], search_needle[i]))
found = TRUE;
}
if (found)
continue;
}
return FALSE;
}
return TRUE;
}
static gboolean
demo_filter_by_name (gpointer item,
gpointer user_data)
{
GtkTreeListRow *row = item;
GtkFilterListModel *model = user_data;
GListModel *children;
GtkDemo *demo;
guint i, n;
GtkTreeListRow *parent;
/* Show all items if search is empty */
if (!search_needle || !search_needle[0] || !*search_needle[0])
return TRUE;
g_assert (GTK_IS_TREE_LIST_ROW (row));
g_assert (GTK_IS_FILTER_LIST_MODEL (model));
/* Show a row if itself of any parent matches */
for (parent = row; parent; parent = gtk_tree_list_row_get_parent (parent))
{
demo = gtk_tree_list_row_get_item (parent);
g_assert (GTK_IS_DEMO (demo));
if (filter_demo (demo))
return TRUE;
}
/* Show a row if any child matches */
children = gtk_tree_list_row_get_children (row);
if (children)
{
n = g_list_model_get_n_items (children);
for (i = 0; i < n; i++)
{
demo = g_list_model_get_item (children, i);
g_assert (GTK_IS_DEMO (demo));
if (filter_demo (demo))
{
g_object_unref (demo);
return TRUE;
}
g_object_unref (demo);
}
}
return FALSE;
}
static void
demo_search_changed_cb (GtkSearchEntry *entry,
GtkFilter *filter)
{
const char *text;
g_assert (GTK_IS_SEARCH_ENTRY (entry));
g_assert (GTK_IS_FILTER (filter));
text = gtk_editable_get_text (GTK_EDITABLE (entry));
g_clear_pointer (&search_needle, g_strfreev);
if (text && *text)
search_needle = g_str_tokenize_and_fold (text, NULL, NULL);
gtk_filter_changed (filter, GTK_FILTER_CHANGE_DIFFERENT);
}
static GListModel *
create_demo_model (void)
{
GListStore *store = g_list_store_new (GTK_TYPE_DEMO);
DemoData *demo = gtk_demos;
GtkDemo *d;
d = GTK_DEMO (g_object_new (GTK_TYPE_DEMO, NULL));
d->name = "main";
d->title = "GTK Demo";
d->keywords = NULL;
d->filename = "main.c";
d->func = NULL;
g_list_store_append (store, d);
while (demo->title)
{
d = GTK_DEMO (g_object_new (GTK_TYPE_DEMO, NULL));
DemoData *children = demo->children;
d->name = demo->name;
d->title = demo->title;
d->keywords = demo->keywords;
d->filename = demo->filename;
d->func = demo->func;
g_list_store_append (store, d);
if (children)
{
d->children_model = G_LIST_MODEL (g_list_store_new (GTK_TYPE_DEMO));
while (children->title)
{
GtkDemo *child = GTK_DEMO (g_object_new (GTK_TYPE_DEMO, NULL));
child->name = children->name;
child->title = children->title;
child->keywords = children->keywords;
child->filename = children->filename;
child->func = children->func;
g_list_store_append (G_LIST_STORE (d->children_model), child);
children++;
}
}
demo++;
}
return G_LIST_MODEL (store);
}
static GListModel *
get_child_model (gpointer item,
gpointer user_data)
{
GtkDemo *demo = item;
if (demo->children_model)
return g_object_ref (G_LIST_MODEL (demo->children_model));
return NULL;
}
static void
clear_search (GtkSearchBar *bar)
{
if (!gtk_search_bar_get_search_mode (bar))
{
GtkWidget *entry = gtk_search_bar_get_child (GTK_SEARCH_BAR (bar));
gtk_editable_set_text (GTK_EDITABLE (entry), "");
}
}
static void
activate (GApplication *app)
{
GtkBuilder *builder;
GListModel *listmodel;
GtkTreeListModel *treemodel;
GtkWidget *window, *listview, *search_entry, *search_bar;
GtkFilterListModel *filter_model;
GtkFilter *filter;
GSimpleAction *action;
builder = gtk_builder_new_from_resource ("/ui/main.ui");
window = (GtkWidget *)gtk_builder_get_object (builder, "window");
gtk_application_add_window (GTK_APPLICATION (app), GTK_WINDOW (window));
if (g_strcmp0 (PROFILE, "devel") == 0)
gtk_widget_add_css_class (window, "devel");
action = g_simple_action_new ("run", NULL);
g_signal_connect (action, "activate", G_CALLBACK (activate_run), window);
g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (action));
notebook = GTK_WIDGET (gtk_builder_get_object (builder, "notebook"));
info_view = GTK_WIDGET (gtk_builder_get_object (builder, "info-textview"));
source_view = GTK_WIDGET (gtk_builder_get_object (builder, "source-textview"));
toplevel = GTK_WIDGET (window);
listview = GTK_WIDGET (gtk_builder_get_object (builder, "listview"));
g_signal_connect (listview, "activate", G_CALLBACK (activate_cb), window);
search_bar = GTK_WIDGET (gtk_builder_get_object (builder, "searchbar"));
g_signal_connect (search_bar, "notify::search-mode-enabled", G_CALLBACK (clear_search), NULL);
listmodel = create_demo_model ();
treemodel = gtk_tree_list_model_new (G_LIST_MODEL (listmodel),
FALSE,
TRUE,
get_child_model,
NULL,
NULL);
filter_model = gtk_filter_list_model_new (G_LIST_MODEL (treemodel), NULL);
filter = GTK_FILTER (gtk_custom_filter_new (demo_filter_by_name, filter_model, NULL));
gtk_filter_list_model_set_filter (filter_model, filter);
g_object_unref (filter);
search_entry = GTK_WIDGET (gtk_builder_get_object (builder, "search-entry"));
g_signal_connect (search_entry, "search-changed", G_CALLBACK (demo_search_changed_cb), filter);
selection = gtk_single_selection_new (G_LIST_MODEL (filter_model));
g_signal_connect (selection, "notify::selected-item", G_CALLBACK (selection_cb), NULL);
gtk_list_view_set_model (GTK_LIST_VIEW (listview), GTK_SELECTION_MODEL (selection));
selection_cb (selection, NULL, NULL);
g_object_unref (selection);
g_object_unref (builder);
}
static gboolean
auto_quit (gpointer data)
{
g_application_quit (G_APPLICATION (data));
return G_SOURCE_REMOVE;
}
static void
list_demos (void)
{
DemoData *d, *c;
d = gtk_demos;
while (d->title)
{
c = d->children;
if (d->name)
g_print ("%s\n", d->name);
d++;
while (c && c->title)
{
if (c->name)
g_print ("%s\n", c->name);
c++;
}
}
}
static int
command_line (GApplication *app,
GApplicationCommandLine *cmdline)
{
GVariantDict *options;
const char *name = NULL;
gboolean autoquit = FALSE;
gboolean list = FALSE;
DemoData *d, *c;
GDoDemoFunc func = 0;
GtkWidget *window, *demo;
activate (app);
options = g_application_command_line_get_options_dict (cmdline);
g_variant_dict_lookup (options, "run", "&s", &name);
g_variant_dict_lookup (options, "autoquit", "b", &autoquit);
g_variant_dict_lookup (options, "list", "b", &list);
if (list)
{
list_demos ();
g_application_quit (app);
return 0;
}
window = gtk_application_get_windows (GTK_APPLICATION (app))->data;
if (name == NULL)
goto out;
d = gtk_demos;
while (d->title)
{
c = d->children;
if (g_strcmp0 (d->name, name) == 0)
{
func = d->func;
goto out;
}
d++;
while (c && c->title)
{
if (g_strcmp0 (c->name, name) == 0)
{
func = c->func;
goto out;
}
c++;
}
}
out:
if (func)
{
demo = (func) (window);
gtk_window_set_transient_for (GTK_WINDOW (demo), GTK_WINDOW (window));
g_signal_connect_swapped (G_OBJECT (demo), "destroy", G_CALLBACK (g_application_quit), app);
}
else
gtk_widget_show (GTK_WIDGET (window));
if (autoquit)
g_timeout_add_seconds (1, auto_quit, app);
return 0;
}
static void
print_version (void)
{
g_print ("gtk4-demo %d.%d.%d\n",
gtk_get_major_version (),
gtk_get_minor_version (),
gtk_get_micro_version ());
}
static int
local_options (GApplication *app,
GVariantDict *options,
gpointer data)
{
gboolean version = FALSE;
g_variant_dict_lookup (options, "version", "b", &version);
if (version)
{
print_version ();
return 0;
}
return -1;
}
int
main (int argc, char **argv)
{
GtkApplication *app;
static GActionEntry app_entries[] = {
{ "about", activate_about, NULL, NULL, NULL },
{ "quit", activate_quit, NULL, NULL, NULL },
{ "inspector", activate_inspector, NULL, NULL, NULL },
};
struct {
const char *action_and_target;
const char *accelerators[2];
} accels[] = {
{ "app.about", { "F1", NULL } },
{ "app.quit", { "<Control>q", NULL } },
};
int i;
app = gtk_application_new ("org.gtk.Demo4", G_APPLICATION_NON_UNIQUE|G_APPLICATION_HANDLES_COMMAND_LINE);
g_action_map_add_action_entries (G_ACTION_MAP (app),
app_entries, G_N_ELEMENTS (app_entries),
app);
for (i = 0; i < G_N_ELEMENTS (accels); i++)
gtk_application_set_accels_for_action (app, accels[i].action_and_target, accels[i].accelerators);
g_application_add_main_option (G_APPLICATION (app), "version", 0, 0, G_OPTION_ARG_NONE, "Show program version", NULL);
g_application_add_main_option (G_APPLICATION (app), "run", 0, 0, G_OPTION_ARG_STRING, "Run an example", "EXAMPLE");
g_application_add_main_option (G_APPLICATION (app), "list", 0, 0, G_OPTION_ARG_NONE, "List examples", NULL);
g_application_add_main_option (G_APPLICATION (app), "autoquit", 0, 0, G_OPTION_ARG_NONE, "Quit after a delay", NULL);
g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
g_signal_connect (app, "command-line", G_CALLBACK (command_line), NULL);
g_signal_connect (app, "handle-local-options", G_CALLBACK (local_options), NULL);
g_application_run (G_APPLICATION (app), argc, argv);
return 0;
}