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gdk: Add a getter for the hardware id of a GdkDeviceTool

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Although scarcely used, this information may be useful to retrieve
from the windowing systems that offer this information.

https://bugzilla.gnome.org/show_bug.cgi?id=770026
This commit is contained in:
Carlos Garnacho 2016-08-04 18:49:13 +02:00
parent d3c204c774
commit 40f75e74be
2 changed files with 42 additions and 0 deletions
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39
gdk/gdkdevicetool.c
View File

@ -31,6 +31,7 @@ enum {
TOOL_PROP_SERIAL,
TOOL_PROP_TOOL_TYPE,
TOOL_PROP_AXES,
TOOL_PROP_HARDWARE_ID,
N_TOOL_PROPS
};
@ -55,6 +56,9 @@ gdk_device_tool_set_property (GObject *object,
case TOOL_PROP_AXES:
tool->tool_axes = g_value_get_flags (value);
break;
case TOOL_PROP_HARDWARE_ID:
tool->hw_id = g_value_get_uint64 (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -80,6 +84,9 @@ gdk_device_tool_get_property (GObject *object,
case TOOL_PROP_AXES:
g_value_set_flags (value, tool->tool_axes);
break;
case TOOL_PROP_HARDWARE_ID:
g_value_set_uint64 (value, tool->hw_id);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -113,6 +120,12 @@ gdk_device_tool_class_init (GdkDeviceToolClass *klass)
GDK_TYPE_AXIS_FLAGS, 0,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY);
tool_props[TOOL_PROP_HARDWARE_ID] = g_param_spec_uint64 ("hardware-id",
"Hardware ID",
"Hardware ID",
0, G_MAXUINT64, 0,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY);
g_object_class_install_properties (object_class, N_TOOL_PROPS, tool_props);
}
@ -153,6 +166,32 @@ gdk_device_tool_get_serial (GdkDeviceTool *tool)
return tool->serial;
}
/**
* gdk_device_tool_get_hardware_id:
* @tool: a #GdkDeviceTool
*
* Gets the hardware ID of this tool, or 0 if it's not known. When
* non-zero, the identificator is unique for the given tool model,
* meaning that two identical tools will share the same @hardware_id,
* but will have different serial numbers (see gdk_device_tool_get_serial()).
*
* This is a more concrete (and device specific) method to identify
* a #GdkDeviceTool than gdk_device_tool_get_tool_type(), as a tablet
* may support multiple devices with the same #GdkDeviceToolType,
* but having different hardware identificators.
*
* Returns: The hardware identificator of this tool.
*
* Since: 3.22
**/
guint64
gdk_device_tool_get_hardware_id (GdkDeviceTool *tool)
{
g_return_val_if_fail (tool != NULL, 0);
return tool->hw_id;
}
/**
* gdk_device_tool_get_tool_type:
* @tool: a #GdkDeviceTool

3
gdk/gdkdevicetool.h
View File

@ -67,6 +67,9 @@ GType gdk_device_tool_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_3_22
guint64 gdk_device_tool_get_serial (GdkDeviceTool *tool);
GDK_AVAILABLE_IN_3_22
guint64 gdk_device_tool_get_hardware_id (GdkDeviceTool *tool);
GDK_AVAILABLE_IN_3_22
GdkDeviceToolType gdk_device_tool_get_tool_type (GdkDeviceTool *tool);