Rewrite using C/CMake/Gtk4 and add some features/tweaks

1 files changed, 210 insertions, 0 deletions

diff --git a/src/gtk.h b/src/gtk.h
new file mode 100644
index 0000000..fc01b3c
--- /dev/null
+++ b/src/gtk.h
@@ -0,0 +1,210 @@
+#ifndef __GTK__
+#define __GTK__
+
+#include <glib/gi18n.h>
+#include <locale.h>
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+typedef struct
+{
+   gchar *sId;
+   GCallback pCallback;
+} ApplicationCallbackSymbol;
+
+typedef struct
+{
+   gchar *sUi;
+   GCallback pCallback;
+   ApplicationCallbackSymbol *lSymbols;
+} ApplicationStartup;
+
+static GtkBuilder *m_pBuilder = NULL;
+static GSettings *m_pDesktopSettings = NULL;
+static GSettings *m_pA11ySettings = NULL;
+
+static inline void application_OnShutdown (GApplication *pApplication, gpointer pData)
+{
+    if (pData)
+    {
+        GCallback pCallback = (GCallback) pData;
+        pCallback ();
+    }
+
+    g_object_unref (m_pBuilder);
+    g_clear_object (&m_pDesktopSettings);
+    g_clear_object (&m_pA11ySettings);
+}
+
+static inline GObject* application_GetObject (gchar *sId)
+{
+    GObject *pObject = gtk_builder_get_object (m_pBuilder, sId);
+
+    return pObject;
+}
+
+static inline void application_OnActivate (GApplication *pApplication, gpointer pData)
+{
+    GList *lWindows = gtk_application_get_windows (GTK_APPLICATION (pApplication));
+
+    if (lWindows)
+    {
+        return;
+    }
+
+    GObject *pWindow = gtk_builder_get_object (m_pBuilder, "window");
+    gtk_window_present (GTK_WINDOW (pWindow));
+    gtk_application_add_window (GTK_APPLICATION (pApplication), GTK_WINDOW (pWindow));
+    GCallback pCallback = (GCallback) pData;
+
+    if (pCallback)
+    {
+        pCallback ();
+    }
+}
+
+static inline void application_onThemeChanged (GSettings *pSettings, const gchar *sKey, gpointer pData)
+{
+    gchar *sColorScheme = g_settings_get_string (m_pDesktopSettings, "color-scheme");
+    gboolean bDark = string_Equal (sColorScheme, "prefer-dark");
+    g_free (sColorScheme);
+    gboolean bHighContrast = g_settings_get_boolean (m_pA11ySettings, "high-contrast");
+    GtkSettings *pGtkSettings = gtk_settings_get_default ();
+
+    if (bHighContrast && bDark)
+    {
+        g_object_set (pGtkSettings, "gtk-theme-name", "Default-hc-dark", NULL);
+    }
+    else if (bHighContrast)
+    {
+        g_object_set (pGtkSettings, "gtk-theme-name", "Default-hc", NULL);
+    }
+    else if (bDark)
+    {
+        gtk_settings_reset_property (pGtkSettings, "gtk-theme-name");
+    }
+    else
+    {
+        gtk_settings_reset_property (pGtkSettings, "gtk-theme-name");
+    }
+
+    g_object_set (pGtkSettings, "gtk-application-prefer-dark-theme", bDark, NULL);
+}
+
+static inline void application_OnStartup (GApplication *pApplication, gpointer pData)
+{
+    ApplicationStartup *pStartup = (ApplicationStartup*) pData;
+    m_pBuilder = gtk_builder_new ();
+    GtkBuilderScope *pScope = gtk_builder_get_scope (m_pBuilder);
+    guint nId = 0;
+
+    while (pStartup->lSymbols[nId].pCallback != NULL)
+    {
+        gtk_builder_cscope_add_callback_symbol (GTK_BUILDER_CSCOPE (pScope), pStartup->lSymbols[nId].sId, pStartup->lSymbols[nId].pCallback);
+        nId++;
+    }
+
+    gtk_builder_add_from_resource (m_pBuilder, pStartup->sUi, NULL);
+    g_free (pStartup->sUi);
+    gtk_builder_set_translation_domain (m_pBuilder, GETTEXT_PACKAGE);
+    GSettingsSchemaSource *pSource = g_settings_schema_source_get_default ();
+    GSettingsSchema *pSchema = g_settings_schema_source_lookup (pSource, "org.gnome.desktop.interface", FALSE);
+
+    if (pSchema)
+    {
+        gboolean bKey = g_settings_schema_has_key (pSchema, "color-scheme");
+        g_settings_schema_unref (pSchema);
+
+        if (bKey)
+        {
+            m_pDesktopSettings = g_settings_new ("org.gnome.desktop.interface");
+            g_signal_connect (m_pDesktopSettings, "changed::color-scheme", G_CALLBACK (application_onThemeChanged), NULL);
+        }
+    }
+
+    pSchema = g_settings_schema_source_lookup (pSource, "org.gnome.desktop.a11y.interface", FALSE);
+
+    if (pSchema)
+    {
+        gboolean bKey = g_settings_schema_has_key (pSchema, "high-contrast");
+        g_settings_schema_unref (pSchema);
+
+        if (bKey)
+        {
+            m_pA11ySettings = g_settings_new ("org.gnome.desktop.a11y.interface");
+            g_signal_connect (m_pA11ySettings, "changed::high-contrast", G_CALLBACK (application_onThemeChanged), NULL);
+        }
+    }
+
+    if (m_pDesktopSettings && m_pA11ySettings)
+    {
+        application_onThemeChanged (NULL, NULL, NULL);
+    }
+
+    if (pStartup->pCallback)
+    {
+        pStartup->pCallback ();
+    }
+}
+
+static inline gint application_Init (ApplicationCallbackSymbol *lSymbols, gchar *sId, GCallback pOnStartup, GCallback pOnActivate, GCallback pOnShutdown, gint argc, gchar *argv[])
+{
+    setlocale (LC_ALL, "");
+    bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
+    textdomain (GETTEXT_PACKAGE);
+    bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
+    GtkApplication *pApplication = gtk_application_new (sId, G_APPLICATION_DEFAULT_FLAGS);
+    gchar *sReplaced = string_Replace (sId, ".", "/");
+    gchar *sConcatenated = g_strconcat ("/", sReplaced, "/", GETTEXT_PACKAGE, ".ui", NULL);
+    g_free (sReplaced);
+    ApplicationStartup cApplicationStartup = {sConcatenated, pOnStartup, lSymbols};
+    g_signal_connect (pApplication, "startup", G_CALLBACK (application_OnStartup), &cApplicationStartup);
+    g_signal_connect (pApplication, "activate", G_CALLBACK (application_OnActivate), pOnActivate);
+    g_signal_connect (pApplication, "shutdown", G_CALLBACK (application_OnShutdown), pOnShutdown);
+    gint nStatus = g_application_run (G_APPLICATION (pApplication), argc, argv);
+    g_object_unref (pApplication);
+
+    return nStatus;
+}
+
+static inline void listview_SetStringListFactory (gchar *sListView)
+{
+    const char *sFactory =
+    "<?xml version='1.0' encoding='UTF-8'?>\n"
+    "<interface>\n"
+    "  <template class='GtkListItem'>\n"
+    "    <property name='child'>\n"
+    "      <object class='GtkInscription'>\n"
+    "        <property name='xalign'>0</property>\n"
+    "        <binding name='text'>\n"
+    "          <lookup name='string' type='GtkStringObject'>\n"
+    "            <lookup name='item'>GtkListItem</lookup>\n"
+    "          </lookup>\n"
+    "        </binding>\n"
+    "      </object>\n"
+    "    </property>\n"
+    "  </template>\n"
+    "</interface>\n";
+
+    gsize nSize = strlen (sFactory);
+    GBytes *pBytes = g_bytes_new_static (sFactory, nSize);
+    GtkListItemFactory *pFactory = gtk_builder_list_item_factory_new_from_bytes (NULL, pBytes);
+    GtkListView *pListView = GTK_LIST_VIEW (application_GetObject (sListView));
+    gtk_list_view_set_factory (pListView, pFactory);
+}
+
+static inline void notebook_DisablePage (gchar *sPage)
+{
+    GtkNotebookPage *pPage = GTK_NOTEBOOK_PAGE (application_GetObject (sPage));
+    GtkWidget *pChild = gtk_notebook_page_get_child (pPage);
+    gtk_widget_set_sensitive (pChild, FALSE);
+    GtkWidget *pTab = NULL;
+    g_object_get (pPage, "tab", &pTab, NULL);
+    gtk_widget_set_sensitive (pTab, FALSE);
+    g_object_unref (pTab);
+}
+
+G_END_DECLS
+
+#endif