mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2025-11-04 10:08:56 +01:00
f952fdf3fc
It's unnecessary, and only adds visual noise; we have been fairly inconsistent in the past, but the semi-colon-less version clearly dominates in the code base. https://bugzilla.gnome.org/show_bug.cgi?id=669355
672 lines
20 KiB
C
672 lines
20 KiB
C
#include <stdlib.h>
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#include <gstdio.h>
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#include <glib-object.h>
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typedef struct _BindingSource
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{
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GObject parent_instance;
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gint foo;
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gint bar;
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gdouble value;
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gboolean toggle;
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} BindingSource;
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typedef struct _BindingSourceClass
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{
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GObjectClass parent_class;
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} BindingSourceClass;
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enum
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{
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PROP_SOURCE_0,
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PROP_SOURCE_FOO,
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PROP_SOURCE_BAR,
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PROP_SOURCE_VALUE,
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PROP_SOURCE_TOGGLE
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};
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static GType binding_source_get_type (void);
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G_DEFINE_TYPE (BindingSource, binding_source, G_TYPE_OBJECT)
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static void
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binding_source_set_property (GObject *gobject,
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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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BindingSource *source = (BindingSource *) gobject;
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switch (prop_id)
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{
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case PROP_SOURCE_FOO:
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source->foo = g_value_get_int (value);
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break;
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case PROP_SOURCE_BAR:
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source->bar = g_value_get_int (value);
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break;
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case PROP_SOURCE_VALUE:
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source->value = g_value_get_double (value);
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break;
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case PROP_SOURCE_TOGGLE:
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source->toggle = g_value_get_boolean (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
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}
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}
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static void
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binding_source_get_property (GObject *gobject,
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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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BindingSource *source = (BindingSource *) gobject;
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switch (prop_id)
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{
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case PROP_SOURCE_FOO:
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g_value_set_int (value, source->foo);
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break;
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case PROP_SOURCE_BAR:
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g_value_set_int (value, source->bar);
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break;
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case PROP_SOURCE_VALUE:
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g_value_set_double (value, source->value);
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break;
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case PROP_SOURCE_TOGGLE:
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g_value_set_boolean (value, source->toggle);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
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}
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}
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static void
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binding_source_class_init (BindingSourceClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->set_property = binding_source_set_property;
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gobject_class->get_property = binding_source_get_property;
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g_object_class_install_property (gobject_class, PROP_SOURCE_FOO,
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g_param_spec_int ("foo", "Foo", "Foo",
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-1, 100,
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0,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, PROP_SOURCE_BAR,
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g_param_spec_int ("bar", "Bar", "Bar",
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-1, 100,
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0,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, PROP_SOURCE_VALUE,
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g_param_spec_double ("value", "Value", "Value",
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-100.0, 200.0,
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0.0,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, PROP_SOURCE_TOGGLE,
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g_param_spec_boolean ("toggle", "Toggle", "Toggle",
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FALSE,
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G_PARAM_READWRITE));
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}
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static void
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binding_source_init (BindingSource *self)
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{
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}
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typedef struct _BindingTarget
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{
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GObject parent_instance;
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gint bar;
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gdouble value;
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gboolean toggle;
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} BindingTarget;
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typedef struct _BindingTargetClass
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{
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GObjectClass parent_class;
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} BindingTargetClass;
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enum
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{
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PROP_TARGET_0,
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PROP_TARGET_BAR,
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PROP_TARGET_VALUE,
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PROP_TARGET_TOGGLE
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};
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static GType binding_target_get_type (void);
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G_DEFINE_TYPE (BindingTarget, binding_target, G_TYPE_OBJECT)
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static void
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binding_target_set_property (GObject *gobject,
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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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BindingTarget *target = (BindingTarget *) gobject;
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switch (prop_id)
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{
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case PROP_TARGET_BAR:
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target->bar = g_value_get_int (value);
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break;
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case PROP_TARGET_VALUE:
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target->value = g_value_get_double (value);
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break;
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case PROP_TARGET_TOGGLE:
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target->toggle = g_value_get_boolean (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
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}
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}
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static void
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binding_target_get_property (GObject *gobject,
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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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BindingTarget *target = (BindingTarget *) gobject;
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switch (prop_id)
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{
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case PROP_TARGET_BAR:
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g_value_set_int (value, target->bar);
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break;
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case PROP_TARGET_VALUE:
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g_value_set_double (value, target->value);
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break;
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case PROP_TARGET_TOGGLE:
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g_value_set_boolean (value, target->toggle);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
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}
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}
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static void
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binding_target_class_init (BindingTargetClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->set_property = binding_target_set_property;
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gobject_class->get_property = binding_target_get_property;
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g_object_class_install_property (gobject_class, PROP_TARGET_BAR,
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g_param_spec_int ("bar", "Bar", "Bar",
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-1, 100,
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0,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, PROP_TARGET_VALUE,
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g_param_spec_double ("value", "Value", "Value",
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-100.0, 200.0,
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0.0,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, PROP_TARGET_TOGGLE,
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g_param_spec_boolean ("toggle", "Toggle", "Toggle",
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FALSE,
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G_PARAM_READWRITE));
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}
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static void
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binding_target_init (BindingTarget *self)
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{
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}
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static gboolean
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celsius_to_fahrenheit (GBinding *binding,
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const GValue *from_value,
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GValue *to_value,
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gpointer user_data G_GNUC_UNUSED)
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{
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gdouble celsius, fahrenheit;
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g_assert (G_VALUE_HOLDS (from_value, G_TYPE_DOUBLE));
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g_assert (G_VALUE_HOLDS (to_value, G_TYPE_DOUBLE));
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celsius = g_value_get_double (from_value);
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fahrenheit = (9 * celsius / 5) + 32.0;
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if (g_test_verbose ())
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g_printerr ("Converting %.2fC to %.2fF\n", celsius, fahrenheit);
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g_value_set_double (to_value, fahrenheit);
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return TRUE;
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}
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static gboolean
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fahrenheit_to_celsius (GBinding *binding,
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const GValue *from_value,
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GValue *to_value,
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gpointer user_data G_GNUC_UNUSED)
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{
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gdouble celsius, fahrenheit;
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g_assert (G_VALUE_HOLDS (from_value, G_TYPE_DOUBLE));
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g_assert (G_VALUE_HOLDS (to_value, G_TYPE_DOUBLE));
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fahrenheit = g_value_get_double (from_value);
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celsius = 5 * (fahrenheit - 32.0) / 9;
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if (g_test_verbose ())
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g_printerr ("Converting %.2fF to %.2fC\n", fahrenheit, celsius);
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g_value_set_double (to_value, celsius);
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return TRUE;
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}
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static void
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binding_default (void)
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{
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BindingSource *source = g_object_new (binding_source_get_type (), NULL);
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BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
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GBinding *binding;
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binding = g_object_bind_property (source, "foo",
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target, "bar",
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G_BINDING_DEFAULT);
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g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
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g_assert ((BindingSource *) g_binding_get_source (binding) == source);
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g_assert ((BindingTarget *) g_binding_get_target (binding) == target);
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g_assert_cmpstr (g_binding_get_source_property (binding), ==, "foo");
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g_assert_cmpstr (g_binding_get_target_property (binding), ==, "bar");
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g_assert_cmpint (g_binding_get_flags (binding), ==, G_BINDING_DEFAULT);
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g_object_set (source, "foo", 42, NULL);
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g_assert_cmpint (source->foo, ==, target->bar);
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g_object_set (target, "bar", 47, NULL);
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g_assert_cmpint (source->foo, !=, target->bar);
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g_object_unref (binding);
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g_object_set (source, "foo", 0, NULL);
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g_assert_cmpint (source->foo, !=, target->bar);
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g_object_unref (source);
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g_object_unref (target);
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g_assert (binding == NULL);
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}
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static void
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binding_bidirectional (void)
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{
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BindingSource *source = g_object_new (binding_source_get_type (), NULL);
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BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
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GBinding *binding;
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binding = g_object_bind_property (source, "foo",
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target, "bar",
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G_BINDING_BIDIRECTIONAL);
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g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
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g_object_set (source, "foo", 42, NULL);
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g_assert_cmpint (source->foo, ==, target->bar);
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g_object_set (target, "bar", 47, NULL);
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g_assert_cmpint (source->foo, ==, target->bar);
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g_object_unref (binding);
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g_object_set (source, "foo", 0, NULL);
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g_assert_cmpint (source->foo, !=, target->bar);
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g_object_unref (source);
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g_object_unref (target);
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g_assert (binding == NULL);
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}
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static void
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data_free (gpointer data)
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{
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gboolean *b = data;
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*b = TRUE;
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}
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static void
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binding_transform_default (void)
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{
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BindingSource *source = g_object_new (binding_source_get_type (), NULL);
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BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
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GBinding *binding;
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gpointer src, trg;
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gchar *src_prop, *trg_prop;
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GBindingFlags flags;
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binding = g_object_bind_property (source, "foo",
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target, "value",
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G_BINDING_BIDIRECTIONAL);
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g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
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g_object_get (binding,
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"source", &src,
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"source-property", &src_prop,
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"target", &trg,
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"target-property", &trg_prop,
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"flags", &flags,
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NULL);
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g_assert (src == source);
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g_assert (trg == target);
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g_assert_cmpstr (src_prop, ==, "foo");
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g_assert_cmpstr (trg_prop, ==, "value");
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g_assert_cmpint (flags, ==, G_BINDING_BIDIRECTIONAL);
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g_object_unref (src);
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g_object_unref (trg);
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g_free (src_prop);
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g_free (trg_prop);
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g_object_set (source, "foo", 24, NULL);
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g_assert_cmpfloat (target->value, ==, 24.0);
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g_object_set (target, "value", 69.0, NULL);
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g_assert_cmpint (source->foo, ==, 69);
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g_object_unref (target);
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g_object_unref (source);
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g_assert (binding == NULL);
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}
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static void
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binding_transform (void)
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{
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BindingSource *source = g_object_new (binding_source_get_type (), NULL);
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BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
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GBinding *binding G_GNUC_UNUSED;
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gboolean unused_data = FALSE;
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binding = g_object_bind_property_full (source, "value",
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target, "value",
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G_BINDING_BIDIRECTIONAL,
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celsius_to_fahrenheit,
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fahrenheit_to_celsius,
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&unused_data, data_free);
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g_object_set (source, "value", 24.0, NULL);
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g_assert_cmpfloat (target->value, ==, ((9 * 24.0 / 5) + 32.0));
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g_object_set (target, "value", 69.0, NULL);
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g_assert_cmpfloat (source->value, ==, (5 * (69.0 - 32.0) / 9));
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g_object_unref (source);
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g_object_unref (target);
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g_assert (unused_data);
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}
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static void
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binding_transform_closure (void)
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{
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BindingSource *source = g_object_new (binding_source_get_type (), NULL);
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BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
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GBinding *binding G_GNUC_UNUSED;
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gboolean unused_data_1 = FALSE, unused_data_2 = FALSE;
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GClosure *c2f_clos, *f2c_clos;
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c2f_clos = g_cclosure_new (G_CALLBACK (celsius_to_fahrenheit), &unused_data_1, (GClosureNotify) data_free);
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f2c_clos = g_cclosure_new (G_CALLBACK (fahrenheit_to_celsius), &unused_data_2, (GClosureNotify) data_free);
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binding = g_object_bind_property_with_closures (source, "value",
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target, "value",
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G_BINDING_BIDIRECTIONAL,
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c2f_clos,
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f2c_clos);
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g_object_set (source, "value", 24.0, NULL);
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g_assert_cmpfloat (target->value, ==, ((9 * 24.0 / 5) + 32.0));
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g_object_set (target, "value", 69.0, NULL);
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g_assert_cmpfloat (source->value, ==, (5 * (69.0 - 32.0) / 9));
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g_object_unref (source);
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g_object_unref (target);
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g_assert (unused_data_1);
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g_assert (unused_data_2);
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}
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static void
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binding_chain (void)
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{
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BindingSource *a = g_object_new (binding_source_get_type (), NULL);
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BindingSource *b = g_object_new (binding_source_get_type (), NULL);
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BindingSource *c = g_object_new (binding_source_get_type (), NULL);
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GBinding *binding_1, *binding_2;
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g_test_bug ("621782");
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/* A -> B, B -> C */
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binding_1 = g_object_bind_property (a, "foo", b, "foo", G_BINDING_BIDIRECTIONAL);
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g_object_add_weak_pointer (G_OBJECT (binding_1), (gpointer *) &binding_1);
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binding_2 = g_object_bind_property (b, "foo", c, "foo", G_BINDING_BIDIRECTIONAL);
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g_object_add_weak_pointer (G_OBJECT (binding_2), (gpointer *) &binding_2);
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/* verify the chain */
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g_object_set (a, "foo", 42, NULL);
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g_assert_cmpint (a->foo, ==, b->foo);
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g_assert_cmpint (b->foo, ==, c->foo);
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/* unbind A -> B and B -> C */
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g_object_unref (binding_1);
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g_assert (binding_1 == NULL);
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g_object_unref (binding_2);
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g_assert (binding_2 == NULL);
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/* bind A -> C directly */
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binding_2 = g_object_bind_property (a, "foo", c, "foo", G_BINDING_BIDIRECTIONAL);
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/* verify the chain is broken */
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g_object_set (a, "foo", 47, NULL);
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g_assert_cmpint (a->foo, !=, b->foo);
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g_assert_cmpint (a->foo, ==, c->foo);
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g_object_unref (a);
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g_object_unref (b);
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g_object_unref (c);
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}
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static void
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binding_sync_create (void)
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{
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BindingSource *source = g_object_new (binding_source_get_type (),
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"foo", 42,
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NULL);
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BindingTarget *target = g_object_new (binding_target_get_type (),
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"bar", 47,
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NULL);
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GBinding *binding;
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binding = g_object_bind_property (source, "foo",
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target, "bar",
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G_BINDING_DEFAULT | G_BINDING_SYNC_CREATE);
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g_assert_cmpint (source->foo, ==, 42);
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g_assert_cmpint (target->bar, ==, 42);
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g_object_set (source, "foo", 47, NULL);
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g_assert_cmpint (source->foo, ==, target->bar);
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g_object_unref (binding);
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g_object_set (target, "bar", 49, NULL);
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binding = g_object_bind_property (source, "foo",
|
|
target, "bar",
|
|
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
|
|
g_assert_cmpint (source->foo, ==, 47);
|
|
g_assert_cmpint (target->bar, ==, 47);
|
|
|
|
g_object_unref (source);
|
|
g_object_unref (target);
|
|
}
|
|
|
|
static void
|
|
binding_invert_boolean (void)
|
|
{
|
|
BindingSource *source = g_object_new (binding_source_get_type (),
|
|
"toggle", TRUE,
|
|
NULL);
|
|
BindingTarget *target = g_object_new (binding_target_get_type (),
|
|
"toggle", FALSE,
|
|
NULL);
|
|
GBinding *binding;
|
|
|
|
binding = g_object_bind_property (source, "toggle",
|
|
target, "toggle",
|
|
G_BINDING_BIDIRECTIONAL | G_BINDING_INVERT_BOOLEAN);
|
|
|
|
g_assert (source->toggle);
|
|
g_assert (!target->toggle);
|
|
|
|
g_object_set (source, "toggle", FALSE, NULL);
|
|
g_assert (!source->toggle);
|
|
g_assert (target->toggle);
|
|
|
|
g_object_set (target, "toggle", FALSE, NULL);
|
|
g_assert (source->toggle);
|
|
g_assert (!target->toggle);
|
|
|
|
g_object_unref (binding);
|
|
g_object_unref (source);
|
|
g_object_unref (target);
|
|
}
|
|
|
|
static void
|
|
binding_same_object (void)
|
|
{
|
|
BindingSource *source = g_object_new (binding_source_get_type (),
|
|
"foo", 100,
|
|
"bar", 50,
|
|
NULL);
|
|
GBinding *binding;
|
|
|
|
binding = g_object_bind_property (source, "foo",
|
|
source, "bar",
|
|
G_BINDING_BIDIRECTIONAL);
|
|
g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
|
|
|
|
g_object_set (source, "foo", 10, NULL);
|
|
g_assert_cmpint (source->foo, ==, 10);
|
|
g_assert_cmpint (source->bar, ==, 10);
|
|
g_object_set (source, "bar", 30, NULL);
|
|
g_assert_cmpint (source->foo, ==, 30);
|
|
g_assert_cmpint (source->bar, ==, 30);
|
|
|
|
g_object_unref (source);
|
|
g_assert (binding == NULL);
|
|
}
|
|
|
|
static void
|
|
binding_unbind (void)
|
|
{
|
|
BindingSource *source = g_object_new (binding_source_get_type (), NULL);
|
|
BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
|
|
GBinding *binding;
|
|
|
|
binding = g_object_bind_property (source, "foo",
|
|
target, "bar",
|
|
G_BINDING_DEFAULT);
|
|
g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
|
|
|
|
g_object_set (source, "foo", 42, NULL);
|
|
g_assert_cmpint (source->foo, ==, target->bar);
|
|
|
|
g_object_set (target, "bar", 47, NULL);
|
|
g_assert_cmpint (source->foo, !=, target->bar);
|
|
|
|
g_binding_unbind (binding);
|
|
g_assert (binding == NULL);
|
|
|
|
g_object_set (source, "foo", 0, NULL);
|
|
g_assert_cmpint (source->foo, !=, target->bar);
|
|
|
|
g_object_unref (source);
|
|
g_object_unref (target);
|
|
|
|
|
|
/* g_binding_unbind() has a special case for this */
|
|
source = g_object_new (binding_source_get_type (), NULL);
|
|
binding = g_object_bind_property (source, "foo",
|
|
source, "bar",
|
|
G_BINDING_DEFAULT);
|
|
g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
|
|
|
|
g_binding_unbind (binding);
|
|
g_assert (binding == NULL);
|
|
|
|
g_object_unref (source);
|
|
}
|
|
|
|
static void
|
|
binding_fail (void)
|
|
{
|
|
BindingSource *source = g_object_new (binding_source_get_type (), NULL);
|
|
BindingTarget *target = g_object_new (binding_target_get_type (), NULL);
|
|
GBinding *binding;
|
|
|
|
/* double -> boolean is not supported */
|
|
binding = g_object_bind_property (source, "value",
|
|
target, "toggle",
|
|
G_BINDING_DEFAULT);
|
|
g_object_add_weak_pointer (G_OBJECT (binding), (gpointer *) &binding);
|
|
|
|
g_test_expect_message ("GLib-GObject", G_LOG_LEVEL_WARNING,
|
|
"*Unable to convert*double*boolean*");
|
|
g_object_set (source, "value", 1.0, NULL);
|
|
g_test_assert_expected_messages ();
|
|
|
|
g_object_unref (source);
|
|
g_object_unref (target);
|
|
g_assert (binding == NULL);
|
|
}
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
g_test_init (&argc, &argv, NULL);
|
|
|
|
g_test_bug_base ("http://bugzilla.gnome.org/");
|
|
|
|
g_test_add_func ("/binding/default", binding_default);
|
|
g_test_add_func ("/binding/bidirectional", binding_bidirectional);
|
|
g_test_add_func ("/binding/transform", binding_transform);
|
|
g_test_add_func ("/binding/transform-default", binding_transform_default);
|
|
g_test_add_func ("/binding/transform-closure", binding_transform_closure);
|
|
g_test_add_func ("/binding/chain", binding_chain);
|
|
g_test_add_func ("/binding/sync-create", binding_sync_create);
|
|
g_test_add_func ("/binding/invert-boolean", binding_invert_boolean);
|
|
g_test_add_func ("/binding/same-object", binding_same_object);
|
|
g_test_add_func ("/binding/unbind", binding_unbind);
|
|
g_test_add_func ("/binding/fail", binding_fail);
|
|
|
|
return g_test_run ();
|
|
}
|