190 lines
4.0 KiB
C
190 lines
4.0 KiB
C
/*
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* ld-diagram-object.c
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*
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* This file is a part of logdiag.
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* Copyright Přemysl Janouch 2010. All rights reserved.
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*
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* See the file LICENSE for licensing information.
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*
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*/
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#include <gtk/gtk.h>
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#include "config.h"
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#include "ld-diagram-object.h"
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/**
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* SECTION:ld-diagram-object
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* @short_description: A diagram object.
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* @see_also: #LdDiagram, #LdCanvas
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*
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* #LdDiagramObject represents an object in an #LdDiagram.
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*/
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/*
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* LdDiagramObjectPrivate:
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* @x: The X coordinate of this object.
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* @y: The Y coordinate of this object.
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*/
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struct _LdDiagramObjectPrivate
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{
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gdouble x;
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gdouble y;
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};
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G_DEFINE_ABSTRACT_TYPE (LdDiagramObject, ld_diagram_object, G_TYPE_OBJECT);
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enum
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{
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PROP_0,
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PROP_X,
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PROP_Y
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};
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static void ld_diagram_object_get_property (GObject *object, guint property_id,
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GValue *value, GParamSpec *pspec);
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static void ld_diagram_object_set_property (GObject *object, guint property_id,
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const GValue *value, GParamSpec *pspec);
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static void
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ld_diagram_object_class_init (LdDiagramObjectClass *klass)
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{
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GObjectClass *object_class;
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GParamSpec *pspec;
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object_class = G_OBJECT_CLASS (klass);
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object_class->get_property = ld_diagram_object_get_property;
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object_class->set_property = ld_diagram_object_set_property;
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/**
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* LdDiagramObject:x:
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*
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* The X coordinate of the object.
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*/
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pspec = g_param_spec_double ("x", "X",
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"The X coordinate of this object.",
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-G_MAXDOUBLE, G_MAXDOUBLE, 0, G_PARAM_READWRITE);
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g_object_class_install_property (object_class, PROP_X, pspec);
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/**
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* LdDiagramObject:y:
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*
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* The Y coordinate of the object.
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*/
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pspec = g_param_spec_double ("y", "Y",
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"The Y coordinate of this object.",
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-G_MAXDOUBLE, G_MAXDOUBLE, 0, G_PARAM_READWRITE);
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g_object_class_install_property (object_class, PROP_Y, pspec);
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g_type_class_add_private (klass, sizeof (LdDiagramObjectPrivate));
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}
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static void
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ld_diagram_object_init (LdDiagramObject *self)
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{
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self->priv = G_TYPE_INSTANCE_GET_PRIVATE
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(self, LD_TYPE_DIAGRAM_OBJECT, LdDiagramObjectPrivate);
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}
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static void
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ld_diagram_object_get_property (GObject *object, guint property_id,
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GValue *value, GParamSpec *pspec)
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{
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LdDiagramObject *self;
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self = LD_DIAGRAM_OBJECT (object);
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switch (property_id)
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{
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case PROP_X:
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g_value_set_double (value, ld_diagram_object_get_x (self));
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break;
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case PROP_Y:
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g_value_set_double (value, ld_diagram_object_get_y (self));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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ld_diagram_object_set_property (GObject *object, guint property_id,
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const GValue *value, GParamSpec *pspec)
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{
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LdDiagramObject *self;
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self = LD_DIAGRAM_OBJECT (object);
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switch (property_id)
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{
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case PROP_X:
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ld_diagram_object_set_x (self, g_value_get_double (value));
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break;
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case PROP_Y:
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ld_diagram_object_set_y (self, g_value_get_double (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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/**
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* ld_diagram_object_get_x:
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* @self: An #LdDiagramObject object.
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*
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* Return value: The X coordinate of the object.
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*/
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gdouble
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ld_diagram_object_get_x (LdDiagramObject *self)
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{
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g_return_val_if_fail (LD_IS_DIAGRAM_OBJECT (self), 0);
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return self->priv->x;
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}
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/**
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* ld_diagram_object_get_y:
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* @self: An #LdDiagramObject object.
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*
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* Return value: The Y coordinate of the object.
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*/
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gdouble
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ld_diagram_object_get_y (LdDiagramObject *self)
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{
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g_return_val_if_fail (LD_IS_DIAGRAM_OBJECT (self), 0);
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return self->priv->y;
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}
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/**
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* ld_diagram_object_set_x:
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* @self: An #LdDiagramObject object.
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* @x: The new X coordinate.
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*
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* Set the X coordinate of the object.
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*/
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void
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ld_diagram_object_set_x (LdDiagramObject *self, gdouble x)
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{
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g_return_if_fail (LD_IS_DIAGRAM_OBJECT (self));
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self->priv->x = x;
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g_object_notify (G_OBJECT (self), "x");
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}
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/**
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* ld_diagram_object_set_y:
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* @self: An #LdDiagramObject object.
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* @y: The new Y coordinate.
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*
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* Set the Y coordinate of the object.
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*/
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void
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ld_diagram_object_set_y (LdDiagramObject *self, gdouble y)
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{
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g_return_if_fail (LD_IS_DIAGRAM_OBJECT (self));
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self->priv->y = y;
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g_object_notify (G_OBJECT (self), "y");
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}
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