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https://github.com/varun-r-mallya/sysprof.git
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tree: start on massive tree refactor
The big thing going on here is that we are going to split up the libraries a bit better, and remove GObject from the capture library. The libsysprof library will bring in the capture library statically, so we can export the symbols we want. Eventually, we will bump the version to sysprof-3, but not yet.
This commit is contained in:
Christian Hergert
308
src/libsysprof-ui/sp-visualizer-row.c
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308
src/libsysprof-ui/sp-visualizer-row.c
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/* sp-visualizer-row.c
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*
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* Copyright 2016-2019 Christian Hergert <christian@hergert.me>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#define G_LOG_DOMAIN "sp-visualizer-row"
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#include "sp-visualizer-row.h"
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#include "sp-visualizer-row-private.h"
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#define NSEC_PER_SEC G_GINT64_CONSTANT(1000000000)
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#define DEFAULT_PIXELS_PER_SECOND 20
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typedef struct
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{
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SpCaptureReader *reader;
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SpZoomManager *zoom_manager;
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} SpVisualizerRowPrivate;
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enum {
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PROP_0,
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PROP_ZOOM_MANAGER,
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N_PROPS
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};
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static GParamSpec *properties [N_PROPS];
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G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (SpVisualizerRow, sp_visualizer_row, GTK_TYPE_LIST_BOX_ROW)
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gint
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_sp_visualizer_row_get_graph_width (SpVisualizerRow *self)
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{
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SpVisualizerRowPrivate *priv = sp_visualizer_row_get_instance_private (self);
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gdouble zoom_level = 1.0;
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gint64 begin_time;
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gint64 end_time;
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g_assert (SP_IS_VISUALIZER_ROW (self));
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if (priv->reader == NULL)
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return 0;
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if (priv->zoom_manager != NULL)
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zoom_level = sp_zoom_manager_get_zoom (priv->zoom_manager);
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begin_time = sp_capture_reader_get_start_time (priv->reader);
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end_time = sp_capture_reader_get_end_time (priv->reader);
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return (end_time - begin_time)
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/ (gdouble)NSEC_PER_SEC
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* zoom_level
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* DEFAULT_PIXELS_PER_SECOND;
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}
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static void
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sp_visualizer_row_get_preferred_width (GtkWidget *widget,
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gint *min_width,
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gint *nat_width)
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{
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SpVisualizerRow *self = (SpVisualizerRow *)widget;
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gint graph_width;
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gint real_min_width = 0;
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gint real_nat_width = 0;
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g_assert (SP_IS_VISUALIZER_ROW (self));
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GTK_WIDGET_CLASS (sp_visualizer_row_parent_class)->get_preferred_width (widget, &real_min_width, &real_nat_width);
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graph_width = _sp_visualizer_row_get_graph_width (self);
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*min_width = *nat_width = real_min_width + graph_width;
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}
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static void
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sp_visualizer_row_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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SpVisualizerRow *self = SP_VISUALIZER_ROW (object);
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switch (prop_id)
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{
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case PROP_ZOOM_MANAGER:
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g_value_set_object (value, sp_visualizer_row_get_zoom_manager (self));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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}
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}
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static void
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sp_visualizer_row_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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SpVisualizerRow *self = SP_VISUALIZER_ROW (object);
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switch (prop_id)
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{
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case PROP_ZOOM_MANAGER:
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sp_visualizer_row_set_zoom_manager (self, g_value_get_object (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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}
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}
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static void
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sp_visualizer_row_finalize (GObject *object)
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{
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SpVisualizerRow *self = (SpVisualizerRow *)object;
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SpVisualizerRowPrivate *priv = sp_visualizer_row_get_instance_private (self);
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g_clear_pointer (&priv->reader, sp_capture_reader_unref);
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g_clear_object (&priv->zoom_manager);
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G_OBJECT_CLASS (sp_visualizer_row_parent_class)->finalize (object);
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}
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static void
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sp_visualizer_row_class_init (SpVisualizerRowClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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object_class->finalize = sp_visualizer_row_finalize;
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object_class->get_property = sp_visualizer_row_get_property;
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object_class->set_property = sp_visualizer_row_set_property;
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widget_class->get_preferred_width = sp_visualizer_row_get_preferred_width;
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properties [PROP_ZOOM_MANAGER] =
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g_param_spec_object ("zoom-manager",
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"Zoom Manager",
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"Zoom Manager",
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SP_TYPE_ZOOM_MANAGER,
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(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_properties (object_class, N_PROPS, properties);
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}
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static void
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sp_visualizer_row_init (SpVisualizerRow *self)
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{
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gtk_list_box_row_set_activatable (GTK_LIST_BOX_ROW (self), FALSE);
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gtk_list_box_row_set_selectable (GTK_LIST_BOX_ROW (self), FALSE);
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}
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static void
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sp_visualizer_row_zoom_manager_notify_zoom (SpVisualizerRow *self,
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GParamSpec *pspec,
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SpZoomManager *zoom_manager)
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{
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g_assert (SP_IS_VISUALIZER_ROW (self));
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g_assert (SP_IS_ZOOM_MANAGER (zoom_manager));
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gtk_widget_queue_resize (GTK_WIDGET (self));
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}
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/**
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* sp_visualizer_row_get_zoom_manager:
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*
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* Returns: (transfer none) (nullable): A #SpZoomManager or %NULL.
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*/
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SpZoomManager *
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sp_visualizer_row_get_zoom_manager (SpVisualizerRow *self)
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{
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SpVisualizerRowPrivate *priv = sp_visualizer_row_get_instance_private (self);
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g_return_val_if_fail (SP_IS_VISUALIZER_ROW (self), NULL);
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return priv->zoom_manager;
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}
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void
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sp_visualizer_row_set_zoom_manager (SpVisualizerRow *self,
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SpZoomManager *zoom_manager)
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{
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SpVisualizerRowPrivate *priv = sp_visualizer_row_get_instance_private (self);
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g_return_if_fail (SP_IS_VISUALIZER_ROW (self));
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g_return_if_fail (!zoom_manager || SP_IS_ZOOM_MANAGER (zoom_manager));
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if (priv->zoom_manager != zoom_manager)
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{
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if (priv->zoom_manager != NULL)
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{
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g_signal_handlers_disconnect_by_func (priv->zoom_manager,
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G_CALLBACK (sp_visualizer_row_zoom_manager_notify_zoom),
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self);
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g_clear_object (&priv->zoom_manager);
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}
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if (zoom_manager != NULL)
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{
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priv->zoom_manager = g_object_ref (zoom_manager);
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g_signal_connect_object (priv->zoom_manager,
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"notify::zoom",
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G_CALLBACK (sp_visualizer_row_zoom_manager_notify_zoom),
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self,
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G_CONNECT_SWAPPED);
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}
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g_object_notify_by_pspec (G_OBJECT (self), properties [PROP_ZOOM_MANAGER]);
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gtk_widget_queue_resize (GTK_WIDGET (self));
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}
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}
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void
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sp_visualizer_row_set_reader (SpVisualizerRow *self,
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SpCaptureReader *reader)
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{
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SpVisualizerRowPrivate *priv = sp_visualizer_row_get_instance_private (self);
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g_return_if_fail (SP_IS_VISUALIZER_ROW (self));
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if (priv->reader != reader)
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{
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g_clear_pointer (&priv->reader, sp_capture_reader_unref);
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if (reader != NULL)
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priv->reader = sp_capture_reader_ref (reader);
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if (SP_VISUALIZER_ROW_GET_CLASS (self)->set_reader)
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SP_VISUALIZER_ROW_GET_CLASS (self)->set_reader (self, reader);
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gtk_widget_queue_resize (GTK_WIDGET (self));
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}
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}
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static inline void
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subtract_border (GtkAllocation *alloc,
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GtkBorder *border)
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{
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#if 0
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g_print ("Border; %d %d %d %d\n", border->top, border->left, border->bottom, border->right);
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#endif
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alloc->x += border->left;
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alloc->y += border->top;
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alloc->width -= border->left + border->right;
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alloc->height -= border->top + border->bottom;
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}
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static void
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adjust_alloc_for_borders (SpVisualizerRow *self,
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GtkAllocation *alloc)
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{
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GtkStyleContext *style_context;
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GtkBorder border;
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GtkStateFlags state;
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g_assert (SP_IS_VISUALIZER_ROW (self));
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g_assert (alloc != NULL);
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state = gtk_widget_get_state_flags (GTK_WIDGET (self));
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style_context = gtk_widget_get_style_context (GTK_WIDGET (self));
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gtk_style_context_get_border (style_context, state, &border);
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subtract_border (alloc, &border);
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}
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void
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sp_visualizer_row_translate_points (SpVisualizerRow *self,
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const SpVisualizerRowRelativePoint *in_points,
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guint n_in_points,
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SpVisualizerRowAbsolutePoint *out_points,
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guint n_out_points)
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{
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GtkAllocation alloc;
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gint graph_width;
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g_return_if_fail (SP_IS_VISUALIZER_ROW (self));
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g_return_if_fail (in_points != NULL);
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g_return_if_fail (out_points != NULL);
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g_return_if_fail (n_in_points == n_out_points);
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gtk_widget_get_allocation (GTK_WIDGET (self), &alloc);
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adjust_alloc_for_borders (self, &alloc);
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graph_width = _sp_visualizer_row_get_graph_width (self);
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for (guint i = 0; i < n_in_points; i++)
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{
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out_points[i].x = (in_points[i].x * graph_width);
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out_points[i].y = alloc.height - (in_points[i].y * alloc.height);
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}
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}
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