libsysprof-ui: land new UI design

This comprises a massive rewrite of the UI for browsing captures. We use
the SysprofAid class to scan capture files for content and then auto-
matically add visualizers and details pages.

To avoid breaking things incrementally, we just land this as a very large
commit. Not necessarily ideal, but given the amount of stuff that could
break, this is easier.

As part of this process, we're removing a lot of the surface API so that
we can limit how much we need to maintain in terms of ABI.

src/libsysprof-ui/sysprof-callgraph-page.h

@@ -0,0 +1,51 @@
+/* sysprof-callgraph-page.h
+ *
+ * Copyright 2016-2019 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
+ */
+
+#pragma once
+
+#include <gtk/gtk.h>
+#include <sysprof.h>
+
+#include "sysprof-page.h"
+
+G_BEGIN_DECLS
+
+#define SYSPROF_TYPE_CALLGRAPH_PAGE (sysprof_callgraph_page_get_type())
+
+G_DECLARE_DERIVABLE_TYPE (SysprofCallgraphPage, sysprof_callgraph_page, SYSPROF, CALLGRAPH_PAGE, SysprofPage)
+
+struct _SysprofCallgraphPageClass
+{
+  SysprofPageClass parent_class;
+
+  void (*go_previous) (SysprofCallgraphPage *self);
+
+  /*< private >*/
+  gpointer _reserved[16];
+};
+
+GtkWidget               *sysprof_callgraph_page_new             (void);
+SysprofCallgraphProfile *sysprof_callgraph_page_get_profile     (SysprofCallgraphPage    *self);
+void                     sysprof_callgraph_page_set_profile     (SysprofCallgraphPage    *self,
+                                                                 SysprofCallgraphProfile *profile);
+gchar                   *sysprof_callgraph_page_screenshot      (SysprofCallgraphPage    *self);
+guint                    sysprof_callgraph_page_get_n_functions (SysprofCallgraphPage    *self);
+
+G_END_DECLS