libsysprof-gtk: start on SysprofTracksView

This is eventually going to contain the list of tracks we have at the
top of the analysis view.

src/libsysprof-gtk/sysprof-track-view.c

@@ -0,0 +1,148 @@
+/* sysprof-track-view.c
+ *
+ * Copyright 2023 Christian Hergert <chergert@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#include "config.h"
+
+#include "sysprof-track-view.h"
+
+struct _SysprofTrackView
+{
+  GtkWidget     parent_instance;
+  SysprofTrack *track;
+};
+
+enum {
+  PROP_0,
+  PROP_TRACK,
+  N_PROPS
+};
+
+G_DEFINE_FINAL_TYPE (SysprofTrackView, sysprof_track_view, GTK_TYPE_WIDGET)
+
+static GParamSpec *properties [N_PROPS];
+
+static void
+sysprof_track_view_dispose (GObject *object)
+{
+  SysprofTrackView *self = (SysprofTrackView *)object;
+
+  gtk_widget_dispose_template (GTK_WIDGET (self), SYSPROF_TYPE_TRACK_VIEW);
+
+  g_clear_object (&self->track);
+
+  G_OBJECT_CLASS (sysprof_track_view_parent_class)->dispose (object);
+}
+
+static void
+sysprof_track_view_get_property (GObject    *object,
+                                 guint       prop_id,
+                                 GValue     *value,
+                                 GParamSpec *pspec)
+{
+  SysprofTrackView *self = SYSPROF_TRACK_VIEW (object);
+
+  switch (prop_id)
+    {
+    case PROP_TRACK:
+      g_value_set_object (value, sysprof_track_view_get_track (self));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+sysprof_track_view_set_property (GObject      *object,
+                                 guint         prop_id,
+                                 const GValue *value,
+                                 GParamSpec   *pspec)
+{
+  SysprofTrackView *self = SYSPROF_TRACK_VIEW (object);
+
+  switch (prop_id)
+    {
+    case PROP_TRACK:
+      sysprof_track_view_set_track (self, g_value_get_object (value));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+sysprof_track_view_class_init (SysprofTrackViewClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+  object_class->dispose = sysprof_track_view_dispose;
+  object_class->get_property = sysprof_track_view_get_property;
+  object_class->set_property = sysprof_track_view_set_property;
+
+  properties[PROP_TRACK] =
+    g_param_spec_object ("track", NULL, NULL,
+                         SYSPROF_TYPE_TRACK,
+                         (G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS));
+
+  g_object_class_install_properties (object_class, N_PROPS, properties);
+
+  gtk_widget_class_set_template_from_resource (widget_class, "/libsysprof-gtk/sysprof-track-view.ui");
+
+  g_type_ensure (SYSPROF_TYPE_TRACK);
+}
+
+static void
+sysprof_track_view_init (SysprofTrackView *self)
+{
+  gtk_widget_init_template (GTK_WIDGET (self));
+}
+
+GtkWidget *
+sysprof_track_view_new (void)
+{
+  return g_object_new (SYSPROF_TYPE_TRACK_VIEW, NULL);
+}
+
+/**
+ * sysprof_track_view_get_track:
+ * @self: a #SysprofTrackView
+ *
+ * Returns: (transfer none) (nullable): A #SysprofTrack or %NULL
+ */
+SysprofTrack *
+sysprof_track_view_get_track (SysprofTrackView *self)
+{
+  g_return_val_if_fail (SYSPROF_IS_TRACK_VIEW (self), NULL);
+
+  return self->track;
+}
+
+void
+sysprof_track_view_set_track (SysprofTrackView *self,
+                              SysprofTrack     *track)
+{
+  g_return_if_fail (SYSPROF_IS_TRACK_VIEW (self));
+  g_return_if_fail (!track || SYSPROF_IS_TRACK (track));
+
+  if (g_set_object (&self->track, track))
+    g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_TRACK]);
+}