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603 lines
16 KiB
C
603 lines
16 KiB
C
/*
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* gdkmonitor.c
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*
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* Copyright 2016 Red Hat, Inc.
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*
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* Matthias Clasen <mclasen@redhat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gdkmonitorprivate.h"
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#include "gdkdisplay.h"
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#include "gdkenumtypes.h"
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/**
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* SECTION:gdkmonitor
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* @Title: GdkMonitor
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* @Short_description: Object representing an output
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*
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* GdkMonitor objects represent the individual outputs that are
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* associated with a #GdkDisplay. GdkDisplay has APIs to enumerate
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* monitors with gdk_display_get_monitors() and to find particular
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* monitors with gdk_display_get_primary_monitor() or
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* gdk_display_get_monitor_at_window().
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*
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* GdkMonitor was introduced in GTK+ 3.22 and supersedes earlier
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* APIs in GdkScreen to obtain monitor-related information.
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*/
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enum {
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PROP_0,
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PROP_DISPLAY,
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PROP_MANUFACTURER,
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PROP_MODEL,
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PROP_SCALE_FACTOR,
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PROP_GEOMETRY,
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PROP_WORKAREA,
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PROP_WIDTH_MM,
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PROP_HEIGHT_MM,
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PROP_REFRESH_RATE,
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PROP_SUBPIXEL_LAYOUT,
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LAST_PROP
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};
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static GParamSpec *props[LAST_PROP] = { NULL, };
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enum {
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INVALIDATE,
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LAST_SIGNAL
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};
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static guint signals[LAST_SIGNAL] = { 0 };
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G_DEFINE_TYPE (GdkMonitor, gdk_monitor, G_TYPE_OBJECT)
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static void
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gdk_monitor_init (GdkMonitor *monitor)
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{
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monitor->scale_factor = 1;
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}
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static void
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gdk_monitor_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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GdkMonitor *monitor = GDK_MONITOR (object);
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switch (prop_id)
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{
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case PROP_DISPLAY:
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g_value_set_object (value, monitor->display);
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break;
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case PROP_MANUFACTURER:
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g_value_set_string (value, monitor->manufacturer);
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break;
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case PROP_MODEL:
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g_value_set_string (value, monitor->model);
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break;
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case PROP_SCALE_FACTOR:
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g_value_set_int (value, monitor->scale_factor);
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break;
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case PROP_GEOMETRY:
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g_value_set_boxed (value, &monitor->geometry);
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break;
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case PROP_WORKAREA:
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{
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GdkRectangle workarea;
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gdk_monitor_get_workarea (monitor, &workarea);
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g_value_set_boxed (value, &workarea);
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}
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break;
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case PROP_WIDTH_MM:
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g_value_set_int (value, monitor->width_mm);
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break;
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case PROP_HEIGHT_MM:
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g_value_set_int (value, monitor->height_mm);
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break;
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case PROP_REFRESH_RATE:
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g_value_set_int (value, monitor->refresh_rate);
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break;
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case PROP_SUBPIXEL_LAYOUT:
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g_value_set_enum (value, monitor->subpixel_layout);
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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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gdk_monitor_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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GdkMonitor *monitor = GDK_MONITOR (object);
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switch (prop_id)
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{
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case PROP_DISPLAY:
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monitor->display = 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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gdk_monitor_finalize (GObject *object)
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{
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GdkMonitor *monitor = GDK_MONITOR (object);
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g_free (monitor->manufacturer);
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g_free (monitor->model);
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G_OBJECT_CLASS (gdk_monitor_parent_class)->finalize (object);
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}
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static void
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gdk_monitor_class_init (GdkMonitorClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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object_class->finalize = gdk_monitor_finalize;
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object_class->get_property = gdk_monitor_get_property;
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object_class->set_property = gdk_monitor_set_property;
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props[PROP_DISPLAY] =
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g_param_spec_object ("display",
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"Display",
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"The display of the monitor",
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GDK_TYPE_DISPLAY,
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G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY);
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props[PROP_MANUFACTURER] =
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g_param_spec_string ("manufacturer",
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"Manufacturer",
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"The manufacturer name",
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NULL,
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G_PARAM_READABLE);
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props[PROP_MODEL] =
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g_param_spec_string ("model",
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"Model",
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"The model name",
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NULL,
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G_PARAM_READABLE);
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props[PROP_SCALE_FACTOR] =
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g_param_spec_int ("scale-factor",
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"Scale factor",
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"The scale factor",
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0, G_MAXINT,
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1,
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G_PARAM_READABLE);
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props[PROP_GEOMETRY] =
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g_param_spec_boxed ("geometry",
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"Geometry",
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"The geometry of the monitor",
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GDK_TYPE_RECTANGLE,
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G_PARAM_READABLE);
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props[PROP_WORKAREA] =
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g_param_spec_boxed ("workarea",
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"Workarea",
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"The workarea of the monitor",
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GDK_TYPE_RECTANGLE,
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G_PARAM_READABLE);
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props[PROP_WIDTH_MM] =
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g_param_spec_int ("width-mm",
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"Physical width",
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"The width of the monitor, in millimeters",
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0, G_MAXINT,
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0,
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G_PARAM_READABLE);
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props[PROP_HEIGHT_MM] =
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g_param_spec_int ("height-mm",
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"Physical height",
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"The height of the monitor, in millimeters",
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0, G_MAXINT,
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0,
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G_PARAM_READABLE);
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props[PROP_REFRESH_RATE] =
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g_param_spec_int ("refresh-rate",
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"Refresh rate",
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"The refresh rate, in millihertz",
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0, G_MAXINT,
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0,
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G_PARAM_READABLE);
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props[PROP_SUBPIXEL_LAYOUT] =
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g_param_spec_enum ("subpixel-layout",
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"Subpixel layout",
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"The subpixel layout",
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GDK_TYPE_SUBPIXEL_LAYOUT,
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GDK_SUBPIXEL_LAYOUT_UNKNOWN,
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G_PARAM_READABLE);
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g_object_class_install_properties (object_class, LAST_PROP, props);
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signals[INVALIDATE] = g_signal_new ("invalidate",
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G_TYPE_FROM_CLASS (object_class),
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G_SIGNAL_RUN_FIRST,
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0,
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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}
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/**
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* gdk_monitor_get_display:
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* @monitor: a #GdkMonitor
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*
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* Gets the display that this monitor belongs to.
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*
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* Returns: (transfer none): the display
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* Since: 3.22
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*/
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GdkDisplay *
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gdk_monitor_get_display (GdkMonitor *monitor)
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{
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g_return_val_if_fail (GDK_IS_MONITOR (monitor), NULL);
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return monitor->display;
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}
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/**
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* gdk_monitor_get_geometry:
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* @monitor: a #GdkMonitor
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* @geometry: (out): a #GdkRectangle to be filled wiht the monitor geometry
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*
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* Retrieves the size and position of an individual monitor within the
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* display coordinate space. The returned geometry is in ”application pixels”,
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* not in ”device pixels” (see gdk_monitor_get_scale_factor()).
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*
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* Since: 3.22
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*/
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void
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gdk_monitor_get_geometry (GdkMonitor *monitor,
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GdkRectangle *geometry)
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{
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g_return_if_fail (GDK_IS_MONITOR (monitor));
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g_return_if_fail (geometry != NULL);
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*geometry = monitor->geometry;
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}
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/**
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* gdk_monitor_get_workarea:
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* @monitor: a #GdkMonitor
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* @workarea: (out): a #GdkRectangle to be filled with
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* the monitor workarea
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*
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* Retrieves the size and position of the “work area” on a monitor
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* within the display coordinate space. The returned geometry is in
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* ”application pixels”, not in ”device pixels” (see
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* gdk_monitor_get_scale_factor()).
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*
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* The work area should be considered when positioning menus and
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* similar popups, to avoid placing them below panels, docks or other
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* desktop components.
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*
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* Note that not all backends may have a concept of workarea. This
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* function will return the monitor geometry if a workarea is not
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* available, or does not apply.
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*
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* Since: 3.22
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*/
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void
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gdk_monitor_get_workarea (GdkMonitor *monitor,
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GdkRectangle *workarea)
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{
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g_return_if_fail (GDK_IS_MONITOR (monitor));
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g_return_if_fail (workarea != NULL);
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if (GDK_MONITOR_GET_CLASS (monitor)->get_workarea)
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GDK_MONITOR_GET_CLASS (monitor)->get_workarea (monitor, workarea);
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else
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*workarea = monitor->geometry;
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}
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/**
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* gdk_monitor_get_width_mm:
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* @monitor: a #GdkMonitor
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*
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* Gets the width in millimeters of the monitor.
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*
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* Returns: the physical width of the monitor
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*
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* Since: 3.22
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*/
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int
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gdk_monitor_get_width_mm (GdkMonitor *monitor)
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{
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g_return_val_if_fail (GDK_IS_MONITOR (monitor), 0);
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return monitor->width_mm;
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}
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/**
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* gdk_monitor_get_height_mm:
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* @monitor: a #GdkMonitor
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*
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* Gets the height in millimeters of the monitor.
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*
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* Returns: the physical height of the monitor
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* Since: 3.22
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*/
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int
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gdk_monitor_get_height_mm (GdkMonitor *monitor)
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{
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g_return_val_if_fail (GDK_IS_MONITOR (monitor), 0);
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return monitor->height_mm;
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}
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/**
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* gdk_monitor_get_manufacturer:
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* @monitor: a #GdkMonitor
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*
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* Gets the name of the monitor's manufacturer, if available.
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*
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* Returns: (transfer none) (nullable): the name of the manufacturer, or %NULL
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*/
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const char *
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gdk_monitor_get_manufacturer (GdkMonitor *monitor)
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{
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g_return_val_if_fail (GDK_IS_MONITOR (monitor), NULL);
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return monitor->manufacturer;
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}
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/**
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* gdk_monitor_get_model:
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* @monitor: a #GdkMonitor
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*
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* Gets the a string identifying the monitor model, if available.
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*
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* Returns: (transfer none) (nullable): the monitor model, or %NULL
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*/
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const char *
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gdk_monitor_get_model (GdkMonitor *monitor)
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{
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g_return_val_if_fail (GDK_IS_MONITOR (monitor), NULL);
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return monitor->model;
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}
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/**
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* gdk_monitor_get_scale_factor:
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* @monitor: a #GdkMonitor
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*
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* Gets the internal scale factor that maps from monitor coordinates
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* to the actual device pixels. On traditional systems this is 1, but
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* on very high density outputs this can be a higher value (often 2).
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*
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* This can be used if you want to create pixel based data for a
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* particular monitor, but most of the time you’re drawing to a window
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* where it is better to use gdk_window_get_scale_factor() instead.
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*
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* Returns: the scale factor
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* Since: 3.22
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*/
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int
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gdk_monitor_get_scale_factor (GdkMonitor *monitor)
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{
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g_return_val_if_fail (GDK_IS_MONITOR (monitor), 1);
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return monitor->scale_factor;
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}
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/**
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* gdk_monitor_get_refresh_rate:
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* @monitor: a #GdkMonitor
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*
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* Gets the refresh rate of the monitor, if available.
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*
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* The value is in milli-Hertz, so a refresh rate of 60Hz
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* is returned as 60000.
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*
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* Returns: the refresh rate in milli-Hertz, or 0
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* Since: 3.22
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*/
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int
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gdk_monitor_get_refresh_rate (GdkMonitor *monitor)
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{
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g_return_val_if_fail (GDK_IS_MONITOR (monitor), 0);
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return monitor->refresh_rate;
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}
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/**
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* gdk_monitor_get_subpixel_layout:
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* @monitor: a #GdkMonitor
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*
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* Gets information about the layout of red, green and blue
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* primaries for each pixel in this monitor, if available.
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*
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* Returns: the subpixel layout
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* Since: 3.22
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*/
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GdkSubpixelLayout
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gdk_monitor_get_subpixel_layout (GdkMonitor *monitor)
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{
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g_return_val_if_fail (GDK_IS_MONITOR (monitor), GDK_SUBPIXEL_LAYOUT_UNKNOWN);
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return monitor->subpixel_layout;
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}
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/**
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* gdk_monitor_is_primary:
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* @monitor: a #GdkMonitor
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*
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* Gets whether this monitor should be considered primary
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* (see gdk_display_get_primary_monitor()).
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*
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* Returns: %TRUE if @monitor is primary
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* Since: 3.22
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*/
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gboolean
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gdk_monitor_is_primary (GdkMonitor *monitor)
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{
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g_return_val_if_fail (GDK_IS_MONITOR (monitor), FALSE);
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return monitor == gdk_display_get_primary_monitor (monitor->display);
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}
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GdkMonitor *
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gdk_monitor_new (GdkDisplay *display)
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{
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return GDK_MONITOR (g_object_new (GDK_TYPE_MONITOR,
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"display", display,
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NULL));
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}
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void
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gdk_monitor_set_manufacturer (GdkMonitor *monitor,
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const char *manufacturer)
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{
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g_free (monitor->manufacturer);
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monitor->manufacturer = g_strdup (manufacturer);
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g_object_notify (G_OBJECT (monitor), "manufacturer");
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}
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void
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gdk_monitor_set_model (GdkMonitor *monitor,
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const char *model)
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{
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g_free (monitor->model);
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monitor->model = g_strdup (model);
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g_object_notify (G_OBJECT (monitor), "model");
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}
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void
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gdk_monitor_set_position (GdkMonitor *monitor,
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int x,
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int y)
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{
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g_object_freeze_notify (G_OBJECT (monitor));
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if (monitor->geometry.x != x)
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{
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monitor->geometry.x = x;
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g_object_notify (G_OBJECT (monitor), "geometry");
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}
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if (monitor->geometry.y != y)
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{
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monitor->geometry.y = y;
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g_object_notify (G_OBJECT (monitor), "geometry");
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}
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g_object_thaw_notify (G_OBJECT (monitor));
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}
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void
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gdk_monitor_set_size (GdkMonitor *monitor,
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int width,
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int height)
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{
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g_object_freeze_notify (G_OBJECT (monitor));
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if (monitor->geometry.width != width)
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{
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monitor->geometry.width = width;
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g_object_notify (G_OBJECT (monitor), "geometry");
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}
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if (monitor->geometry.height != height)
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{
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monitor->geometry.height = height;
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g_object_notify (G_OBJECT (monitor), "geometry");
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}
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g_object_thaw_notify (G_OBJECT (monitor));
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}
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void
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gdk_monitor_set_physical_size (GdkMonitor *monitor,
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int width_mm,
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int height_mm)
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{
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g_object_freeze_notify (G_OBJECT (monitor));
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if (monitor->width_mm != width_mm)
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{
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monitor->width_mm = width_mm;
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g_object_notify (G_OBJECT (monitor), "width-mm");
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}
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if (monitor->height_mm != height_mm)
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{
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monitor->height_mm = height_mm;
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g_object_notify (G_OBJECT (monitor), "height-mm");
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}
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|
||
g_object_thaw_notify (G_OBJECT (monitor));
|
||
}
|
||
|
||
void
|
||
gdk_monitor_set_scale_factor (GdkMonitor *monitor,
|
||
int scale_factor)
|
||
{
|
||
if (monitor->scale_factor == scale_factor)
|
||
return;
|
||
|
||
monitor->scale_factor = scale_factor;
|
||
|
||
g_object_notify (G_OBJECT (monitor), "scale-factor");
|
||
}
|
||
|
||
void
|
||
gdk_monitor_set_refresh_rate (GdkMonitor *monitor,
|
||
int refresh_rate)
|
||
{
|
||
if (monitor->refresh_rate == refresh_rate)
|
||
return;
|
||
|
||
monitor->refresh_rate = refresh_rate;
|
||
|
||
g_object_notify (G_OBJECT (monitor), "refresh-rate");
|
||
}
|
||
|
||
void
|
||
gdk_monitor_set_subpixel_layout (GdkMonitor *monitor,
|
||
GdkSubpixelLayout subpixel_layout)
|
||
{
|
||
if (monitor->subpixel_layout == subpixel_layout)
|
||
return;
|
||
|
||
monitor->subpixel_layout = subpixel_layout;
|
||
|
||
g_object_notify (G_OBJECT (monitor), "subpixel-layout");
|
||
}
|
||
|
||
void
|
||
gdk_monitor_invalidate (GdkMonitor *monitor)
|
||
{
|
||
g_signal_emit (monitor, signals[INVALIDATE], 0);
|
||
}
|