libsysprof-gtk: add SysprofTimeLabel

This is useful for things that are durations or time offsets.

src/libsysprof-gtk/meson.build

@@ -7,6 +7,7 @@ libsysprof_gtk_private_sources = [
   'sysprof-css.c',
   'sysprof-progress-cell.c',
   'sysprof-symbol-label.c',
+  'sysprof-time-label.c',
 ]
 
 libsysprof_gtk_public_headers = [

src/libsysprof-gtk/sysprof-time-label-private.h

@@ -0,0 +1,39 @@
+/* sysprof-time-label.h
+ *
+ * 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
+ */
+
+#pragma once
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define SYSPROF_TYPE_TIME_LABEL (sysprof_time_label_get_type())
+
+G_DECLARE_FINAL_TYPE (SysprofTimeLabel, sysprof_time_label, SYSPROF, TIME_LABEL, GtkWidget)
+
+GtkWidget *sysprof_time_label_new             (void);
+gint64     sysprof_time_label_get_duration    (SysprofTimeLabel *self);
+void       sysprof_time_label_set_duration    (SysprofTimeLabel *self,
+                                               gint64            duration);
+gint64     sysprof_time_label_get_time_offset (SysprofTimeLabel *self);
+void       sysprof_time_label_set_time_offset (SysprofTimeLabel *self,
+                                               gint64            time_offset);
+
+G_END_DECLS

src/libsysprof-gtk/sysprof-time-label.c

@@ -0,0 +1,213 @@
+/* sysprof-time-label.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-capture.h>
+
+#include "sysprof-time-label-private.h"
+
+struct _SysprofTimeLabel
+{
+  GtkWidget  parent_instance;
+  GtkLabel  *label;
+  gint64     t;
+  guint      mode : 1;
+};
+
+enum {
+  PROP_0,
+  PROP_TIME_OFFSET,
+  PROP_DURATION,
+  N_PROPS
+};
+
+enum {
+  MODE_TIME_OFFSET,
+  MODE_DURATION,
+};
+
+G_DEFINE_FINAL_TYPE (SysprofTimeLabel, sysprof_time_label, GTK_TYPE_WIDGET)
+
+static GParamSpec *properties [N_PROPS];
+
+static void
+sysprof_time_label_dispose (GObject *object)
+{
+  SysprofTimeLabel *self = (SysprofTimeLabel *)object;
+
+  if (self->label)
+    {
+      gtk_widget_unparent (GTK_WIDGET (self->label));
+      self->label = NULL;
+    }
+
+  G_OBJECT_CLASS (sysprof_time_label_parent_class)->dispose (object);
+}
+
+static void
+sysprof_time_label_get_property (GObject    *object,
+                                 guint       prop_id,
+                                 GValue     *value,
+                                 GParamSpec *pspec)
+{
+  SysprofTimeLabel *self = SYSPROF_TIME_LABEL (object);
+
+  switch (prop_id)
+    {
+    case PROP_DURATION:
+      g_value_set_int64 (value, sysprof_time_label_get_duration (self));
+      break;
+
+    case PROP_TIME_OFFSET:
+      g_value_set_int64 (value, sysprof_time_label_get_time_offset (self));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+sysprof_time_label_set_property (GObject      *object,
+                                 guint         prop_id,
+                                 const GValue *value,
+                                 GParamSpec   *pspec)
+{
+  SysprofTimeLabel *self = SYSPROF_TIME_LABEL (object);
+
+  switch (prop_id)
+    {
+    case PROP_DURATION:
+      sysprof_time_label_set_duration (self, g_value_get_int64 (value));
+      break;
+
+    case PROP_TIME_OFFSET:
+      sysprof_time_label_set_time_offset (self, g_value_get_int64 (value));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+sysprof_time_label_class_init (SysprofTimeLabelClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+  object_class->dispose = sysprof_time_label_dispose;
+  object_class->get_property = sysprof_time_label_get_property;
+  object_class->set_property = sysprof_time_label_set_property;
+
+  properties [PROP_DURATION] =
+    g_param_spec_int64 ("duration", NULL, NULL,
+                        G_MININT64, G_MAXINT64, 0,
+                        (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+  properties [PROP_TIME_OFFSET] =
+    g_param_spec_int64 ("time-offset", NULL, NULL,
+                        G_MININT64, G_MAXINT64, 0,
+                        (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+  g_object_class_install_properties (object_class, N_PROPS, properties);
+
+  gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BIN_LAYOUT);
+  gtk_widget_class_set_css_name (widget_class, "timelabel");
+}
+
+static void
+sysprof_time_label_init (SysprofTimeLabel *self)
+{
+  self->label = g_object_new (GTK_TYPE_LABEL,
+                              "xalign", 1.f,
+                              NULL);
+  gtk_widget_set_parent (GTK_WIDGET (self->label), GTK_WIDGET (self));
+}
+
+static void
+sysprof_time_label_set_internal (SysprofTimeLabel *self,
+                                 gint64            t,
+                                 guint             mode)
+{
+  g_return_if_fail (SYSPROF_IS_TIME_LABEL (self));
+
+  if (mode == self->mode && t == self->t)
+    return;
+
+  self->mode = mode;
+  self->t = t;
+
+  if (mode == MODE_DURATION)
+    {
+      char str[32];
+
+      if (t == 0)
+        str[0] = 0;
+      else if (t < SYSPROF_NSEC_PER_SEC/1000)
+        g_snprintf (str, sizeof str, "%.3lfμs", t/1000.);
+      else if (t < SYSPROF_NSEC_PER_SEC/1000000)
+        g_snprintf (str, sizeof str, "%.3lfms", t/1000000.);
+      else
+        g_snprintf (str, sizeof str, "%.3lfs", t/(double)SYSPROF_NSEC_PER_SEC);
+
+      gtk_label_set_label (self->label, str);
+    }
+  else
+    {
+      char str[32];
+      g_snprintf (str, sizeof str, "%0.3lfs", t/(double)SYSPROF_NSEC_PER_SEC);
+      gtk_label_set_label (self->label, str);
+    }
+
+  g_object_notify_by_pspec (G_OBJECT (self), properties [PROP_DURATION]);
+  g_object_notify_by_pspec (G_OBJECT (self), properties [PROP_TIME_OFFSET]);
+}
+
+gint64
+sysprof_time_label_get_duration (SysprofTimeLabel *self)
+{
+  if (self->mode == MODE_DURATION)
+    return self->t;
+  return 0;
+}
+
+void
+sysprof_time_label_set_duration (SysprofTimeLabel *self,
+                                 gint64            duration)
+{
+  sysprof_time_label_set_internal (self, duration, MODE_DURATION);
+}
+
+gint64
+sysprof_time_label_get_time_offset (SysprofTimeLabel *self)
+{
+  if (self->mode == MODE_TIME_OFFSET)
+    return self->t;
+  return 0;
+}
+
+void
+sysprof_time_label_set_time_offset (SysprofTimeLabel *self,
+                                    gint64            time_offset)
+{
+  sysprof_time_label_set_internal (self, time_offset, MODE_TIME_OFFSET);
+}