Learning_GTK4_tree/demos/node-editor/node-editor-application.c

258 lines
8.4 KiB
C
Raw Permalink 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.

/*
* Copyright © 2019 Benjamin Otte
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#include "config.h"
#include "node-editor-application.h"
#include "node-editor-window.h"
#include "demo_conf.h"
static const char *css =
"textview.editor {"
" color: rgb(192, 197, 206);"
" caret-color: currentColor;"
"}"
"textview.editor > text {"
" background-color: rgb(43, 48, 59);"
"}"
;
struct _NodeEditorApplication
{
GtkApplication parent;
};
struct _NodeEditorApplicationClass
{
GtkApplicationClass parent_class;
};
G_DEFINE_TYPE(NodeEditorApplication, node_editor_application, GTK_TYPE_APPLICATION);
static void
node_editor_application_init (NodeEditorApplication *app)
{
}
static void
activate_about (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkApplication *app = user_data;
char *version;
GString *s;
GskRenderer *gsk_renderer;
const char *renderer;
char *os_name;
char *os_version;
GtkWidget *dialog;
os_name = g_get_os_info (G_OS_INFO_KEY_NAME);
os_version = g_get_os_info (G_OS_INFO_KEY_VERSION_ID);
s = g_string_new ("");
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 ());
gsk_renderer = gtk_native_get_renderer (GTK_NATIVE (gtk_application_get_active_window (app)));
if (strcmp (G_OBJECT_TYPE_NAME (gsk_renderer), "GskVulkanRenderer") == 0)
renderer = "Vulkan";
else if (strcmp (G_OBJECT_TYPE_NAME (gsk_renderer), "GskGLRenderer") == 0)
renderer = "OpenGL";
else if (strcmp (G_OBJECT_TYPE_NAME (gsk_renderer), "GskCairoRenderer") == 0)
renderer = "Cairo";
else
renderer = "Unknown";
g_string_append_printf (s, "\nRenderer\n\t%s", renderer);
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 ());
dialog = g_object_new (GTK_TYPE_ABOUT_DIALOG,
"transient-for", gtk_application_get_active_window (app),
"program-name", g_strcmp0 (PROFILE, "devel") == 0
? "GTK Node Editor (Development)"
: "GTK Node Editor",
"version", version,
"copyright", "©2019—2021 The GTK Team",
"license-type", GTK_LICENSE_LGPL_2_1,
"website", "http://www.gtk.org",
"comments", "Program to test GTK rendering",
"authors", (const char *[]){ "Benjamin Otte", "Timm Bäder", NULL},
"logo-icon-name", "org.gtk.gtk4.NodeEditor",
"title", "About GTK Node Editor",
"system-information", s->str,
NULL);
gtk_about_dialog_add_credit_section (GTK_ABOUT_DIALOG (dialog),
"Artwork by", (const char *[]) { "Jakub Steiner", NULL });
gtk_window_present (GTK_WINDOW (dialog));
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 data)
{
g_application_quit (G_APPLICATION (data));
}
static void
activate_inspector (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
gtk_window_set_interactive_debugging (TRUE);
}
static void
activate_help (GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GtkBuilder *builder;
GtkWidget *window;
GtkTextBuffer *buffer;
GBytes *bytes;
const char *text;
gsize len;
builder = gtk_builder_new ();
gtk_builder_add_from_resource (builder, "/org/gtk/gtk4/node-editor/help-window.ui", NULL);
window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
buffer = GTK_TEXT_BUFFER (gtk_builder_get_object (builder, "buffer"));
bytes = g_resources_lookup_data ("/org/gtk/gtk4/node-editor/node-format.md",
G_RESOURCE_LOOKUP_FLAGS_NONE,
NULL);
text = g_bytes_get_data (bytes, &len);
gtk_text_buffer_set_text (buffer, text, len);
g_bytes_unref (bytes);
gtk_window_present (GTK_WINDOW (window));
g_object_unref (builder);
}
static GActionEntry app_entries[] =
{
{ "about", activate_about, NULL, NULL, NULL },
{ "quit", activate_quit, NULL, NULL, NULL },
{ "inspector", activate_inspector, NULL, NULL, NULL },
{ "help", activate_help, NULL, NULL, NULL },
};
static void
node_editor_application_startup (GApplication *app)
{
const char *help_accels[2] = { "F1", NULL };
const char *quit_accels[2] = { "<Ctrl>Q", NULL };
const char *open_accels[2] = { "<Ctrl>O", NULL };
GtkCssProvider *provider;
G_APPLICATION_CLASS (node_editor_application_parent_class)->startup (app);
g_action_map_add_action_entries (G_ACTION_MAP (app),
app_entries, G_N_ELEMENTS (app_entries),
app);
gtk_application_set_accels_for_action (GTK_APPLICATION (app), "app.help", help_accels);
gtk_application_set_accels_for_action (GTK_APPLICATION (app), "app.quit", quit_accels);
gtk_application_set_accels_for_action (GTK_APPLICATION (app), "win.open", open_accels);
provider = gtk_css_provider_new ();
gtk_css_provider_load_from_string (provider, css);
gtk_style_context_add_provider_for_display (gdk_display_get_default (),
GTK_STYLE_PROVIDER (provider),
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
}
static void
node_editor_application_activate (GApplication *app)
{
NodeEditorWindow *win;
win = node_editor_window_new (NODE_EDITOR_APPLICATION (app));
if (g_strcmp0 (PROFILE, "devel") == 0)
gtk_widget_add_css_class (GTK_WIDGET (win), "devel");
gtk_window_present (GTK_WINDOW (win));
}
static void
node_editor_application_open (GApplication *app,
GFile **files,
int n_files,
const char *hint)
{
NodeEditorWindow *win;
int i;
for (i = 0; i < n_files; i++)
{
win = node_editor_window_new (NODE_EDITOR_APPLICATION (app));
node_editor_window_load (win, files[i]);
gtk_window_present (GTK_WINDOW (win));
}
}
static void
node_editor_application_class_init (NodeEditorApplicationClass *class)
{
GApplicationClass *application_class = G_APPLICATION_CLASS (class);
application_class->startup = node_editor_application_startup;
application_class->activate = node_editor_application_activate;
application_class->open = node_editor_application_open;
}
NodeEditorApplication *
node_editor_application_new (void)
{
return g_object_new (NODE_EDITOR_APPLICATION_TYPE,
"application-id", "org.gtk.gtk4.NodeEditor",
"flags", G_APPLICATION_HANDLES_OPEN,
NULL);
}