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PIKApp/libpikawidgets/pikapropwidgets.c

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/* LIBPIKA - The PIKA Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* pikapropwidgets.c
* Copyright (C) 2002-2007 Michael Natterer <mitch@gimp.org>
* Sven Neumann <sven@gimp.org>
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include <gegl-paramspecs.h>
#include <gtk/gtk.h>
#include "libpikacolor/pikacolor.h"
#include "libpikamath/pikamath.h"
#include "libpikabase/pikabase.h"
#include "libpikaconfig/pikaconfig.h"
#include "pikawidgets.h"
#include "pikawidgets-private.h"
#include "libpika/libpika-intl.h"
/**
* SECTION: pikapropwidgets
* @title: PikaPropWidgets
* @short_description: Editable views on #GObject properties.
*
* Editable views on #GObject properties.
**/
/* utility function prototypes */
static void set_param_spec (GObject *object,
GtkWidget *widget,
GParamSpec *param_spec);
static void set_radio_spec (GObject *object,
GParamSpec *param_spec);
static GParamSpec * get_param_spec (GObject *object);
static GParamSpec * find_param_spec (GObject *object,
const gchar *property_name,
const gchar *strloc);
static GParamSpec * check_param_spec_quiet (GObject *object,
const gchar *property_name,
GType type,
const gchar *strloc);
static GParamSpec * check_param_spec (GObject *object,
const gchar *property_name,
GType type,
const gchar *strloc);
static GParamSpec * check_param_spec_w (GObject *object,
const gchar *property_name,
GType type,
const gchar *strloc);
static gboolean get_numeric_values (GObject *object,
GParamSpec *param_spec,
gdouble *value,
gdouble *lower,
gdouble *upper,
const gchar *strloc);
static void connect_notify (GObject *config,
const gchar *property_name,
GCallback callback,
gpointer callback_data);
static gboolean pika_prop_widget_double_to_factor (GBinding *binding,
const GValue *from_value,
GValue *to_value,
gpointer user_data);
static gboolean pika_prop_widget_double_from_factor (GBinding *binding,
const GValue *from_value,
GValue *to_value,
gpointer user_data);
/******************/
/* check button */
/******************/
/**
* pika_prop_check_button_new:
* @config: Object to which property is attached.
* @property_name: Name of boolean property controlled by checkbutton.
* @label: (nullable): Label to give checkbutton (including mnemonic).
*
* Creates a #GtkCheckButton that displays and sets the specified
* boolean property.
* If @label is %NULL, the @property_name's nick will be used as label
* of the returned button.
*
* Returns: (transfer full): The newly created #GtkCheckButton widget.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_check_button_new (GObject *config,
const gchar *property_name,
const gchar *label)
{
GParamSpec *param_spec;
GtkWidget *button;
const gchar *blurb;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = check_param_spec_w (config, property_name,
G_TYPE_PARAM_BOOLEAN, G_STRFUNC);
if (! param_spec)
return NULL;
if (! label)
label = g_param_spec_get_nick (param_spec);
button = gtk_check_button_new_with_mnemonic (label);
gtk_widget_show (button);
blurb = g_param_spec_get_blurb (param_spec);
if (blurb)
pika_help_set_help_data (button, blurb, NULL);
g_object_bind_property (config, property_name,
button, "active",
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
pika_widget_set_bound_property (button, config, property_name);
return button;
}
static void pika_prop_enum_check_button_callback (GtkWidget *widget,
GObject *config);
static void pika_prop_enum_check_button_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *button);
/**
* pika_prop_enum_check_button_new:
* @config: Object to which property is attached.
* @property_name: Name of enum property controlled by checkbutton.
* @label: (nullable): Label to give checkbutton (including mnemonic).
* @false_value: Enum value corresponding to unchecked state.
* @true_value: Enum value corresponding to checked state.
*
* Creates a #GtkCheckButton that displays and sets the specified
* property of type Enum. Note that this widget only allows two values
* for the enum, one corresponding to the "checked" state and the
* other to the "unchecked" state.
* If @label is %NULL, the @property_name's nick will be used as label
* of the returned button.
*
* Returns: (transfer full): The newly created #GtkCheckButton widget.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_enum_check_button_new (GObject *config,
const gchar *property_name,
const gchar *label,
gint false_value,
gint true_value)
{
GParamSpec *param_spec;
GtkWidget *button;
gint value;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = check_param_spec_w (config, property_name,
G_TYPE_PARAM_ENUM, G_STRFUNC);
if (! param_spec)
return NULL;
if (! label)
label = g_param_spec_get_nick (param_spec);
g_object_get (config,
property_name, &value,
NULL);
button = gtk_check_button_new_with_mnemonic (label);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button),
value == true_value);
if (value != false_value && value != true_value)
gtk_toggle_button_set_inconsistent (GTK_TOGGLE_BUTTON (button), TRUE);
set_param_spec (G_OBJECT (button), button, param_spec);
g_object_set_data (G_OBJECT (button), "false-value",
GINT_TO_POINTER (false_value));
g_object_set_data (G_OBJECT (button), "true-value",
GINT_TO_POINTER (true_value));
g_signal_connect (button, "toggled",
G_CALLBACK (pika_prop_enum_check_button_callback),
config);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_enum_check_button_notify),
button);
gtk_widget_show (button);
pika_widget_set_bound_property (button, config, property_name);
return button;
}
static void
pika_prop_enum_check_button_callback (GtkWidget *widget,
GObject *config)
{
GParamSpec *param_spec;
gint false_value;
gint true_value;
gint value;
gint v;
param_spec = get_param_spec (G_OBJECT (widget));
if (! param_spec)
return;
false_value = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"false-value"));
true_value = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"true-value"));
value = (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)) ?
true_value : false_value);
g_object_get (config, param_spec->name, &v, NULL);
if (v != value)
{
g_object_set (config, param_spec->name, value, NULL);
gtk_toggle_button_set_inconsistent (GTK_TOGGLE_BUTTON (widget), FALSE);
}
}
static void
pika_prop_enum_check_button_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *button)
{
gint value;
gint false_value;
gint true_value;
gboolean active = FALSE;
gboolean inconsistent = FALSE;
g_object_get (config,
param_spec->name, &value,
NULL);
false_value = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (button),
"false-value"));
true_value = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (button),
"true-value"));
if (value == true_value)
active = TRUE;
else if (value != false_value)
inconsistent = TRUE;
gtk_toggle_button_set_inconsistent (GTK_TOGGLE_BUTTON (button),
inconsistent);
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button)) != active)
{
g_signal_handlers_block_by_func (button,
pika_prop_enum_check_button_callback,
config);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), active);
g_signal_handlers_unblock_by_func (button,
pika_prop_enum_check_button_callback,
config);
}
}
/******************/
/* switch */
/******************/
/**
* pika_prop_switch_new:
* @config: Object to which property is attached.
* @property_name: Name of boolean property controlled by checkbutton.
* @label: Label to give checkbutton (including mnemonic).
* @label_out: (out) (optional) (transfer none): The generated #GtkLabel
* @switch_out: (out) (optional) (transfer none): The generated #GtkSwitch
*
* Creates a #GtkBox with a switch and a label that displays and sets the
* specified boolean property.
* If @label is %NULL, the @property_name's nick will be used as label.
*
* Returns: (transfer full): The newly created box containing a #GtkSwitch.
*
* Since: 3.0
*/
GtkWidget *
pika_prop_switch_new (GObject *config,
const gchar *property_name,
const gchar *label,
GtkWidget **label_out,
GtkWidget **switch_out)
{
GParamSpec *param_spec;
const gchar *tooltip;
GtkWidget *plabel;
GtkWidget *pswitch;
GtkWidget *hbox;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = check_param_spec_w (config, property_name,
G_TYPE_PARAM_BOOLEAN, G_STRFUNC);
if (! param_spec)
return NULL;
if (! label)
label = g_param_spec_get_nick (param_spec);
tooltip = g_param_spec_get_blurb (param_spec);
pswitch = gtk_switch_new ();
g_object_bind_property (config, property_name, pswitch, "active",
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
pika_help_set_help_data (pswitch, tooltip, NULL);
gtk_widget_show (pswitch);
plabel = gtk_label_new_with_mnemonic (label);
gtk_label_set_xalign (GTK_LABEL (plabel), 0.0);
gtk_label_set_mnemonic_widget (GTK_LABEL (plabel), pswitch);
pika_help_set_help_data (plabel, tooltip, NULL);
gtk_widget_show (plabel);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (hbox), plabel, FALSE, FALSE, 0);
gtk_box_pack_start (GTK_BOX (hbox), pswitch, FALSE, FALSE, 0);
gtk_widget_show (hbox);
if (label_out)
*label_out = plabel;
if (switch_out)
*switch_out = pswitch;
pika_widget_set_bound_property (hbox, config, property_name);
return hbox;
}
/*************************/
/* int/enum combo box */
/*************************/
static void pika_prop_int_combo_box_callback (GtkWidget *widget,
GObject *config);
static void pika_prop_int_combo_box_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *widget);
static void pika_prop_pointer_combo_box_callback (GtkWidget *widget,
GObject *config);
static void pika_prop_pointer_combo_box_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *combo_box);
/**
* pika_prop_int_combo_box_new:
* @config: Object to which property is attached.
* @property_name: Name of int property controlled by combo box.
* @store: #PikaIntStore holding list of labels, values, etc.
*
* Creates a #PikaIntComboBox widget to display and set the specified
* property. The contents of the widget are determined by @store,
* which should be created using pika_int_store_new().
*
* Returns: (transfer full): The newly created #PikaIntComboBox widget.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_int_combo_box_new (GObject *config,
const gchar *property_name,
PikaIntStore *store)
{
GParamSpec *param_spec;
GtkWidget *combo_box;
const gchar *blurb;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
/* Require property is integer valued type: INT or ENUM, and is writeable. */
param_spec = check_param_spec_quiet (config, property_name,
G_TYPE_PARAM_INT, G_STRFUNC);
if (param_spec)
{
param_spec = check_param_spec_w (config, property_name,
G_TYPE_PARAM_INT, G_STRFUNC);
if (! param_spec)
return NULL;
}
else
{
param_spec = check_param_spec_quiet (config, property_name,
G_TYPE_PARAM_ENUM, G_STRFUNC);
if (param_spec)
{
param_spec = check_param_spec_w (config, property_name,
G_TYPE_PARAM_ENUM, G_STRFUNC);
if (! param_spec)
return NULL;
}
else
{
g_warning ("%s: property '%s' of %s is not integer valued.",
G_STRFUNC,
param_spec->name,
g_type_name (param_spec->owner_type));
return NULL;
}
}
combo_box = g_object_new (PIKA_TYPE_INT_COMBO_BOX,
"model", store,
"visible", TRUE,
NULL);
blurb = g_param_spec_get_blurb (param_spec);
if (blurb)
pika_help_set_help_data (combo_box, blurb, NULL);
g_object_bind_property (config, property_name,
combo_box, "value",
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
pika_widget_set_bound_property (combo_box, config, property_name);
return combo_box;
}
/**
* pika_prop_pointer_combo_box_new:
* @config: Object to which property is attached.
* @property_name: Name of GType/gpointer property controlled by combo box.
* @store: #PikaIntStore holding list of labels, values, etc.
*
* Creates a #PikaIntComboBox widget to display and set the specified
* property. The contents of the widget are determined by @store,
* which should be created using pika_int_store_new().
* Values are GType/gpointer data, and therefore must be stored in the
* "user-data" column, instead of the usual "value" column.
*
* Returns: (transfer full): The newly created #PikaIntComboBox widget.
*
* Since: 2.10
*/
GtkWidget *
pika_prop_pointer_combo_box_new (GObject *config,
const gchar *property_name,
PikaIntStore *store)
{
GParamSpec *param_spec;
GtkWidget *combo_box;
gpointer property_value;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = check_param_spec_w (config, property_name,
G_TYPE_PARAM_GTYPE, G_STRFUNC);
if (! param_spec)
{
param_spec = check_param_spec_w (config, property_name,
G_TYPE_PARAM_POINTER, G_STRFUNC);
if (! param_spec)
return NULL;
}
g_object_get (config,
property_name, &property_value,
NULL);
/* We use a PikaIntComboBox but we cannot store gpointer in the
* "value" column, because gpointer is not a subset of gint. Instead
* we store the value in the "user-data" column which is a gpointer.
*/
combo_box = g_object_new (PIKA_TYPE_INT_COMBO_BOX,
"model", store,
NULL);
pika_int_combo_box_set_active_by_user_data (PIKA_INT_COMBO_BOX (combo_box),
property_value);
g_signal_connect (combo_box, "changed",
G_CALLBACK (pika_prop_pointer_combo_box_callback),
config);
set_param_spec (G_OBJECT (combo_box), combo_box, param_spec);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_pointer_combo_box_notify),
combo_box);
pika_widget_set_bound_property (combo_box, config, property_name);
gtk_widget_show (combo_box);
return combo_box;
}
/**
* pika_prop_enum_combo_box_new:
* @config: Object to which property is attached.
* @property_name: Name of enum property controlled by combo box.
* @minimum: Smallest allowed value of enum.
* @maximum: Largest allowed value of enum.
*
* Creates a #PikaIntComboBox widget to display and set the specified
* enum property. The @mimimum_value and @maximum_value give the
* possibility of restricting the allowed range to a subset of the
* enum. If the two values are equal (e.g., 0, 0), then the full
* range of the Enum is used.
*
* Returns: (transfer full): The newly created #PikaEnumComboBox widget.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_enum_combo_box_new (GObject *config,
const gchar *property_name,
gint minimum,
gint maximum)
{
GParamSpec *param_spec;
GtkListStore *store = NULL;
GtkWidget *combo_box;
gint value;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = check_param_spec_w (config, property_name,
G_TYPE_PARAM_ENUM, G_STRFUNC);
if (! param_spec)
return NULL;
g_object_get (config,
property_name, &value,
NULL);
if (minimum != maximum)
{
store = pika_enum_store_new_with_range (param_spec->value_type,
minimum, maximum);
}
else if (param_spec->value_type == PIKA_TYPE_DESATURATE_MODE)
{
/* this is a bad hack, if we get more of those, we should probably
* think of something less ugly
*/
store = pika_enum_store_new_with_values (param_spec->value_type,
5,
PIKA_DESATURATE_LUMINANCE,
PIKA_DESATURATE_LUMA,
PIKA_DESATURATE_LIGHTNESS,
PIKA_DESATURATE_AVERAGE,
PIKA_DESATURATE_VALUE);
}
if (store)
{
combo_box = g_object_new (PIKA_TYPE_ENUM_COMBO_BOX,
"model", store,
NULL);
g_object_unref (store);
}
else
{
combo_box = pika_enum_combo_box_new (param_spec->value_type);
}
pika_int_combo_box_set_active (PIKA_INT_COMBO_BOX (combo_box), value);
g_signal_connect (combo_box, "changed",
G_CALLBACK (pika_prop_int_combo_box_callback),
config);
set_param_spec (G_OBJECT (combo_box), combo_box, param_spec);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_int_combo_box_notify),
combo_box);
gtk_widget_show (combo_box);
pika_widget_set_bound_property (combo_box, config, property_name);
return combo_box;
}
static void
pika_prop_int_combo_box_callback (GtkWidget *widget,
GObject *config)
{
GParamSpec *param_spec;
gint value;
param_spec = get_param_spec (G_OBJECT (widget));
if (! param_spec)
return;
if (pika_int_combo_box_get_active (PIKA_INT_COMBO_BOX (widget), &value))
{
gint v;
g_object_get (config, param_spec->name, &v, NULL);
if (v != value)
g_object_set (config, param_spec->name, value, NULL);
}
}
static void
pika_prop_int_combo_box_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *combo_box)
{
gint value;
g_object_get (config,
param_spec->name, &value,
NULL);
g_signal_handlers_block_by_func (combo_box,
pika_prop_int_combo_box_callback,
config);
pika_int_combo_box_set_active (PIKA_INT_COMBO_BOX (combo_box), value);
g_signal_handlers_unblock_by_func (combo_box,
pika_prop_int_combo_box_callback,
config);
}
static void
pika_prop_pointer_combo_box_callback (GtkWidget *widget,
GObject *config)
{
GParamSpec *param_spec;
gpointer value;
param_spec = get_param_spec (G_OBJECT (widget));
if (! param_spec)
return;
if (pika_int_combo_box_get_active_user_data (PIKA_INT_COMBO_BOX (widget),
&value))
{
gpointer v;
g_object_get (config, param_spec->name, &v, NULL);
if (v != value)
g_object_set (config, param_spec->name, value, NULL);
}
}
static void
pika_prop_pointer_combo_box_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *combo_box)
{
gpointer value;
g_object_get (config,
param_spec->name, &value,
NULL);
g_signal_handlers_block_by_func (combo_box,
pika_prop_pointer_combo_box_callback,
config);
pika_int_combo_box_set_active_by_user_data (PIKA_INT_COMBO_BOX (combo_box),
value);
g_signal_handlers_unblock_by_func (combo_box,
pika_prop_pointer_combo_box_callback,
config);
}
/************************/
/* boolean combo box */
/************************/
static void pika_prop_boolean_combo_box_callback (GtkWidget *combo,
GObject *config);
static void pika_prop_boolean_combo_box_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *combo);
/**
* pika_prop_boolean_combo_box_new:
* @config: Object to which property is attached.
* @property_name: Name of boolean property controlled by combo box.
* @true_text: Label used for entry corresponding to %TRUE value.
* @false_text: Label used for entry corresponding to %FALSE value.
*
* Creates a #GtkComboBox widget to display and set the specified
* boolean property. The combo box will have two entries, one
* displaying the @true_text label, the other displaying the
* @false_text label.
*
* Returns: (transfer full): The newly created #GtkComboBox widget.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_boolean_combo_box_new (GObject *config,
const gchar *property_name,
const gchar *true_text,
const gchar *false_text)
{
GParamSpec *param_spec;
GtkWidget *combo;
gboolean value;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = check_param_spec_w (config, property_name,
G_TYPE_PARAM_BOOLEAN, G_STRFUNC);
if (! param_spec)
return NULL;
g_object_get (config,
property_name, &value,
NULL);
combo = pika_int_combo_box_new (true_text, TRUE,
false_text, FALSE,
NULL);
pika_int_combo_box_set_active (PIKA_INT_COMBO_BOX (combo), value);
g_signal_connect (combo, "changed",
G_CALLBACK (pika_prop_boolean_combo_box_callback),
config);
set_param_spec (G_OBJECT (combo), combo, param_spec);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_boolean_combo_box_notify),
combo);
pika_widget_set_bound_property (combo, config, property_name);
gtk_widget_show (combo);
return combo;
}
static void
pika_prop_boolean_combo_box_callback (GtkWidget *combo,
GObject *config)
{
GParamSpec *param_spec;
gint value;
param_spec = get_param_spec (G_OBJECT (combo));
if (! param_spec)
return;
if (pika_int_combo_box_get_active (PIKA_INT_COMBO_BOX (combo), &value))
{
gint v;
g_object_get (config, param_spec->name, &v, NULL);
if (v != value)
g_object_set (config, param_spec->name, value, NULL);
}
}
static void
pika_prop_boolean_combo_box_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *combo)
{
gboolean value;
g_object_get (config,
param_spec->name, &value,
NULL);
g_signal_handlers_block_by_func (combo,
pika_prop_boolean_combo_box_callback,
config);
pika_int_combo_box_set_active (PIKA_INT_COMBO_BOX (combo), value);
g_signal_handlers_unblock_by_func (combo,
pika_prop_boolean_combo_box_callback,
config);
}
/*****************/
/* radio boxes */
/*****************/
static void pika_prop_radio_button_callback (GtkWidget *widget,
GObject *config);
static void pika_prop_radio_button_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *button);
/**
* pika_prop_enum_radio_frame_new:
* @config: Object to which property is attached.
* @property_name: Name of enum property controlled by the radio buttons.
* @title: (nullable): Label for the frame holding the buttons
* @minimum: Smallest value of enum to be included.
* @maximum: Largest value of enum to be included.
*
* Creates a group of radio buttons which function to set and display
* the specified enum property. The @minimum and @maximum arguments
* allow only a subset of the enum to be used. If the two arguments
* are equal (e.g., 0, 0), then the full range of the enum will be used.
* If @title is %NULL, the @property_name's nick will be used as label
* of the returned frame.
*
* Returns: (transfer full): A #PikaFrame containing the radio buttons.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_enum_radio_frame_new (GObject *config,
const gchar *property_name,
const gchar *title,
gint minimum,
gint maximum)
{
GParamSpec *param_spec;
GtkWidget *frame;
GtkWidget *button;
gint value;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = check_param_spec_w (config, property_name,
G_TYPE_PARAM_ENUM, G_STRFUNC);
if (! param_spec)
return NULL;
if (! title)
title = g_param_spec_get_nick (param_spec);
g_object_get (config,
property_name, &value,
NULL);
if (minimum != maximum)
{
frame = pika_enum_radio_frame_new_with_range (param_spec->value_type,
minimum, maximum,
gtk_label_new (title),
G_CALLBACK (pika_prop_radio_button_callback),
config, NULL,
&button);
}
else
{
frame = pika_enum_radio_frame_new (param_spec->value_type,
gtk_label_new (title),
G_CALLBACK (pika_prop_radio_button_callback),
config, NULL,
&button);
}
pika_int_radio_group_set_active (GTK_RADIO_BUTTON (button), value);
set_radio_spec (G_OBJECT (button), param_spec);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_radio_button_notify),
button);
g_object_set_data (G_OBJECT (frame), "radio-button", button);
gtk_widget_show (frame);
pika_widget_set_bound_property (frame, config, property_name);
return frame;
}
/**
* pika_prop_enum_radio_box_new:
* @config: Object to which property is attached.
* @property_name: Name of enum property controlled by the radio buttons.
* @minimum: Smallest value of enum to be included.
* @maximum: Largest value of enum to be included.
*
* Creates a group of radio buttons which function to set and display
* the specified enum property. The @minimum and @maximum arguments
* allow only a subset of the enum to be used. If the two arguments
* are equal (e.g., 0, 0), then the full range of the enum will be used.
* If you want to assign a label to the group of radio buttons, use
* pika_prop_enum_radio_frame_new() instead of this function.
*
* Returns: (transfer full): A #GtkBox containing the radio buttons.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_enum_radio_box_new (GObject *config,
const gchar *property_name,
gint minimum,
gint maximum)
{
GParamSpec *param_spec;
GtkWidget *vbox;
GtkWidget *button;
gint value;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = check_param_spec_w (config, property_name,
G_TYPE_PARAM_ENUM, G_STRFUNC);
if (! param_spec)
return NULL;
g_object_get (config,
property_name, &value,
NULL);
if (minimum != maximum)
{
vbox = pika_enum_radio_box_new_with_range (param_spec->value_type,
minimum, maximum,
G_CALLBACK (pika_prop_radio_button_callback),
config, NULL,
&button);
}
else
{
vbox = pika_enum_radio_box_new (param_spec->value_type,
G_CALLBACK (pika_prop_radio_button_callback),
config, NULL,
&button);
}
pika_int_radio_group_set_active (GTK_RADIO_BUTTON (button), value);
set_radio_spec (G_OBJECT (button), param_spec);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_radio_button_notify),
button);
g_object_set_data (G_OBJECT (vbox), "radio-button", button);
pika_widget_set_bound_property (vbox, config, property_name);
gtk_widget_show (vbox);
return vbox;
}
/**
* pika_prop_int_radio_frame_new:
* @config: Object to which property is attached.
* @property_name: Name of enum property controlled by the radio buttons.
* @title: (nullable): Label for the frame holding the buttons
* @store: #PikaIntStore holding list of labels, values, etc.
*
* Creates a group of radio buttons which function to set and display
* the specified int property. If @title is %NULL, the
* @property_name's nick will be used as label of the returned frame.
*
* Returns: (transfer full): A #PikaFrame containing the radio buttons.
*
* Since: 3.0
*/
GtkWidget *
pika_prop_int_radio_frame_new (GObject *config,
const gchar *property_name,
const gchar *title,
PikaIntStore *store)
{
GParamSpec *param_spec;
const gchar *tooltip;
GtkWidget *frame;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
g_return_val_if_fail (PIKA_IS_INT_STORE (store), NULL);
param_spec = check_param_spec_w (config, property_name,
G_TYPE_PARAM_INT, G_STRFUNC);
if (! param_spec)
return NULL;
if (! title)
title = g_param_spec_get_nick (param_spec);
tooltip = g_param_spec_get_blurb (param_spec);
frame = pika_int_radio_frame_new_from_store (title, store);
g_object_bind_property (config, property_name,
frame, "value",
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
pika_help_set_help_data (frame, tooltip, NULL);
gtk_widget_show (frame);
pika_widget_set_bound_property (frame, config, property_name);
return frame;
}
/***********/
/* label */
/***********/
static void pika_prop_enum_label_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *label);
/**
* pika_prop_enum_label_new:
* @config: Object to which property is attached.
* @property_name: Name of enum property to be displayed.
*
* Returns: (transfer full): The newly created #PikaEnumLabel widget.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_enum_label_new (GObject *config,
const gchar *property_name)
{
GParamSpec *param_spec;
GtkWidget *label;
gint value;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = check_param_spec (config, property_name,
G_TYPE_PARAM_ENUM, G_STRFUNC);
if (! param_spec)
return NULL;
g_object_get (config,
property_name, &value,
NULL);
label = pika_enum_label_new (param_spec->value_type, value);
gtk_widget_set_halign (label, GTK_ALIGN_START);
set_param_spec (G_OBJECT (label), label, param_spec);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_enum_label_notify),
label);
pika_widget_set_bound_property (label, config, property_name);
gtk_widget_show (label);
return label;
}
static void
pika_prop_enum_label_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *label)
{
gint value;
g_object_get (config,
param_spec->name, &value,
NULL);
pika_enum_label_set_value (PIKA_ENUM_LABEL (label), value);
}
/**
* pika_prop_boolean_radio_frame_new:
* @config: Object to which property is attached.
* @property_name: Name of boolean property controlled by the radio buttons.
* @title: (nullable): Label for the frame.
* @true_text: Label for the button corresponding to %TRUE.
* @false_text: Label for the button corresponding to %FALSE.
*
* Creates a pair of radio buttons which function to set and display
* the specified boolean property.
* If @title is %NULL, the @property_name's nick will be used as label
* of the returned frame.
*
* Returns: (transfer full): A #PikaFrame containing the radio buttons.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_boolean_radio_frame_new (GObject *config,
const gchar *property_name,
const gchar *title,
const gchar *true_text,
const gchar *false_text)
{
GParamSpec *param_spec;
GtkWidget *frame;
GtkWidget *button;
gboolean value;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = check_param_spec_w (config, property_name,
G_TYPE_PARAM_BOOLEAN, G_STRFUNC);
if (! param_spec)
return NULL;
if (! title)
title = g_param_spec_get_nick (param_spec);
g_object_get (config,
property_name, &value,
NULL);
frame =
pika_int_radio_group_new (TRUE, title,
G_CALLBACK (pika_prop_radio_button_callback),
config, NULL, value,
false_text, FALSE, &button,
true_text, TRUE, NULL,
NULL);
set_radio_spec (G_OBJECT (button), param_spec);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_radio_button_notify),
button);
g_object_set_data (G_OBJECT (frame), "radio-button", button);
pika_widget_set_bound_property (frame, config, property_name);
gtk_widget_show (frame);
return frame;
}
/**
* pika_prop_enum_icon_box_new:
* @config: Object to which property is attached.
* @property_name: Name of enum property controlled by the radio buttons.
* @icon_prefix: The prefix of the group of icon names to use.
* @minimum: Smallest value of enum to be included.
* @maximum: Largest value of enum to be included.
*
* Creates a horizontal box of radio buttons with named icons, which
* function to set and display the value of the specified Enum
* property. The icon name for each icon is created by appending the
* enum_value's nick to the given @icon_prefix. See
* pika_enum_icon_box_new() for more information.
*
* Returns: (transfer full): A #libpikawidgets-pikaenumiconbox containing the radio buttons.
*
* Since: 2.10
*/
GtkWidget *
pika_prop_enum_icon_box_new (GObject *config,
const gchar *property_name,
const gchar *icon_prefix,
gint minimum,
gint maximum)
{
GParamSpec *param_spec;
GtkWidget *box;
GtkWidget *button;
gint value;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = check_param_spec_w (config, property_name,
G_TYPE_PARAM_ENUM, G_STRFUNC);
if (! param_spec)
return NULL;
g_object_get (config,
property_name, &value,
NULL);
if (minimum != maximum)
{
box = pika_enum_icon_box_new_with_range (param_spec->value_type,
minimum, maximum,
icon_prefix,
GTK_ICON_SIZE_MENU,
G_CALLBACK (pika_prop_radio_button_callback),
config, NULL,
&button);
}
else
{
box = pika_enum_icon_box_new (param_spec->value_type,
icon_prefix,
GTK_ICON_SIZE_MENU,
G_CALLBACK (pika_prop_radio_button_callback),
config, NULL,
&button);
}
pika_int_radio_group_set_active (GTK_RADIO_BUTTON (button), value);
set_radio_spec (G_OBJECT (button), param_spec);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_radio_button_notify),
button);
pika_widget_set_bound_property (box, config, property_name);
gtk_widget_show (box);
return box;
}
static void
pika_prop_radio_button_callback (GtkWidget *widget,
GObject *config)
{
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
{
GParamSpec *param_spec;
gint value;
gint v;
param_spec = get_param_spec (G_OBJECT (widget));
if (! param_spec)
return;
value = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"pika-item-data"));
g_object_get (config, param_spec->name, &v, NULL);
if (v != value)
g_object_set (config, param_spec->name, value, NULL);
}
}
static void
pika_prop_radio_button_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *button)
{
gint value;
g_object_get (config,
param_spec->name, &value,
NULL);
pika_int_radio_group_set_active (GTK_RADIO_BUTTON (button), value);
}
/*****************/
/* adjustments */
/*****************/
static void pika_prop_adjustment_callback (GtkAdjustment *adjustment,
GObject *config);
static void pika_prop_adjustment_notify (GObject *config,
GParamSpec *param_spec,
GtkAdjustment *adjustment);
/**
* pika_prop_spin_button_new:
* @config: Object to which property is attached.
* @property_name: Name of double property controlled by the spin button.
* @step_increment: Step size.
* @page_increment: Page size.
* @digits: Number of digits after decimal point to display.
*
* Creates a spin button to set and display the value of the
* specified double property.
*
* If you wish to change the widget's range relatively to the
* @property_name's range, use pika_prop_widget_set_factor().
*
* Returns: (transfer full): A new #libpikawidgets-pikaspinbutton.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_spin_button_new (GObject *config,
const gchar *property_name,
gdouble step_increment,
gdouble page_increment,
gint digits)
{
GParamSpec *param_spec;
GtkWidget *spinbutton;
GtkAdjustment *adjustment;
GBinding *binding;
gdouble value;
gdouble lower;
gdouble upper;
param_spec = find_param_spec (config, property_name, G_STRFUNC);
if (! param_spec)
return NULL;
if (! get_numeric_values (config,
param_spec, &value, &lower, &upper, G_STRFUNC))
return NULL;
if (! G_IS_PARAM_SPEC_DOUBLE (param_spec))
digits = 0;
adjustment = gtk_adjustment_new (value, lower, upper,
step_increment, page_increment, 0);
spinbutton = pika_spin_button_new (adjustment, step_increment, digits);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
set_param_spec (G_OBJECT (adjustment), spinbutton, param_spec);
binding = g_object_bind_property (config, property_name,
spinbutton, "value",
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
g_object_set_data (G_OBJECT (adjustment),
"pika-prop-adjustment-binding",
binding);
pika_widget_set_bound_property (spinbutton, config, property_name);
gtk_widget_show (spinbutton);
return spinbutton;
}
/**
* pika_prop_label_spin_new:
* @config: Object to which property is attached.
* @digits: Number of digits after decimal point to display.
*
* Creates a #PikaLabelSpin to set and display the value of the
* specified double property.
*
* Returns: (transfer full): A new #libpikawidgets-pikaspinbutton.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_label_spin_new (GObject *config,
const gchar *property_name,
gint digits)
{
const gchar *label;
GParamSpec *param_spec;
GtkWidget *widget;
gdouble value;
gdouble lower;
gdouble upper;
param_spec = find_param_spec (config, property_name, G_STRFUNC);
if (! param_spec)
return NULL;
if (! get_numeric_values (config,
param_spec, &value, &lower, &upper, G_STRFUNC))
return NULL;
if (! G_IS_PARAM_SPEC_DOUBLE (param_spec))
digits = 0;
label = g_param_spec_get_nick (param_spec);
widget = pika_label_spin_new (label, value, lower, upper, digits);
g_object_bind_property (config, property_name,
widget, "value",
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
pika_widget_set_bound_property (widget, config, property_name);
return widget;
}
/**
* pika_prop_spin_scale_new:
* @config: Object to which property is attached.
* @property_name: Name of double or int property controlled by the
* spin button.
* @step_increment: Step size.
* @page_increment: Page size.
* @digits: Number of digits after decimal point to display.
* This is only used for double properties. In case of
* int properties, `digits = 0` is implied.
*
* Creates a spin scale to set and display the value of the specified
* int or double property.
*
* By default, the @property_name's nick will be used as label of the
* returned widget. Use pika_spin_scale_set_label() to change this.
*
* If you wish to change the widget's range relatively to the
* @property_name's range, use pika_prop_widget_set_factor().
*
* Returns: (transfer full): A new #libpikawidgets-pikaspinbutton.
*
* Since: 3.0
*/
GtkWidget *
pika_prop_spin_scale_new (GObject *config,
const gchar *property_name,
gdouble step_increment,
gdouble page_increment,
gint digits)
{
GParamSpec *param_spec;
GtkWidget *spinscale;
GtkAdjustment *adjustment;
const gchar *label;
const gchar *tooltip;
GBinding *binding;
gdouble value;
gdouble lower;
gdouble upper;
param_spec = find_param_spec (config, property_name, G_STRFUNC);
if (! param_spec)
return NULL;
if (! get_numeric_values (config,
param_spec, &value, &lower, &upper, G_STRFUNC))
return NULL;
if (! G_IS_PARAM_SPEC_DOUBLE (param_spec))
digits = 0;
adjustment = gtk_adjustment_new (value, lower, upper,
step_increment, page_increment, 0);
label = g_param_spec_get_nick (param_spec);
spinscale = pika_spin_scale_new (adjustment, label, digits);
set_param_spec (G_OBJECT (adjustment), spinscale, param_spec);
if (GEGL_IS_PARAM_SPEC_DOUBLE (param_spec))
{
GeglParamSpecDouble *gspec = GEGL_PARAM_SPEC_DOUBLE (param_spec);
pika_spin_scale_set_scale_limits (PIKA_SPIN_SCALE (spinscale),
gspec->ui_minimum, gspec->ui_maximum);
pika_spin_scale_set_gamma (PIKA_SPIN_SCALE (spinscale), gspec->ui_gamma);
}
else if (GEGL_IS_PARAM_SPEC_INT (param_spec))
{
GeglParamSpecInt *gspec = GEGL_PARAM_SPEC_INT (param_spec);
pika_spin_scale_set_scale_limits (PIKA_SPIN_SCALE (spinscale),
gspec->ui_minimum, gspec->ui_maximum);
pika_spin_scale_set_gamma (PIKA_SPIN_SCALE (spinscale), gspec->ui_gamma);
}
tooltip = g_param_spec_get_blurb (param_spec);
pika_help_set_help_data (spinscale, tooltip, NULL);
binding = g_object_bind_property (config, property_name,
spinscale, "value",
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
g_object_set_data (G_OBJECT (adjustment),
"pika-prop-adjustment-binding",
binding);
gtk_widget_show (spinscale);
pika_widget_set_bound_property (spinscale, config, property_name);
return spinscale;
}
/**
* pika_prop_widget_set_factor:
* @widget: Property widget.
* @factor: Multiplier to convert the @widget's range and
* map appropriately to the property's range it is
* associated to.
* @step_increment: Step size.
* @page_increment: Page size.
* @digits: Number of digits after decimal point to display.
*
* Change the display factor of the property @widget relatively to the
* property it was bound to. Currently the only types of widget accepted
* as input are those created by pika_prop_spin_scale_new() and
* pika_prop_spin_button_new().
*
* If @factor is 1.0, then the config property and the widget display
* map exactly.
*
* If @factor is not 1.0, the widget's range will be computed based of
* @property_name's range multiplied by @factor. A typical usage would
* be to display a [0.0, 1.0] range as [0.0, 100.0] by setting 100.0 as
* @factor. This function can only be used with double properties.
*
* The @step_increment and @page_increment can be set to new increments
* you want to get for this new range. If you set them to 0.0 or
* negative values, new increments will be computed based on the new
* @factor and previous factor.
*
* Since: 3.0
*/
void
pika_prop_widget_set_factor (GtkWidget *widget,
gdouble factor,
gdouble step_increment,
gdouble page_increment,
gint digits)
{
GtkAdjustment *adjustment;
GParamSpec *param_spec;
GBinding *binding;
GObject *config;
gchar *property_name;
gdouble *factor_store;
gdouble old_factor = 1.0;
gdouble f;
g_return_if_fail (GTK_IS_SPIN_BUTTON (widget));
g_return_if_fail (factor != 0.0);
g_return_if_fail (digits >= 0);
adjustment = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (widget));
param_spec = get_param_spec (G_OBJECT (adjustment));
g_return_if_fail (param_spec != NULL && G_IS_PARAM_SPEC_DOUBLE (param_spec));
/* Get the old factor and recompute new values. */
factor_store = g_object_get_data (G_OBJECT (adjustment),
"pika-prop-adjustment-factor");
if (factor_store)
{
old_factor = *factor_store;
}
else
{
factor_store = g_new (gdouble, 1);
g_object_set_data_full (G_OBJECT (adjustment),
"pika-prop-adjustment-factor",
factor_store, (GDestroyNotify) g_free);
}
*factor_store = factor;
f = factor / old_factor;
if (step_increment <= 0)
step_increment = f * gtk_adjustment_get_step_increment (adjustment);
if (page_increment <= 0)
page_increment = f * gtk_adjustment_get_page_increment (adjustment);
/* Remove the old binding. */
binding = g_object_get_data (G_OBJECT (adjustment),
"pika-prop-adjustment-binding");
g_return_if_fail (binding != NULL);
config = g_binding_dup_source (binding);
/* This binding should not have outlived the config object. */
g_return_if_fail (config != NULL);
property_name = g_strdup (g_binding_get_source_property (binding));
g_binding_unbind (binding);
/* Reconfigure the scale object. */
gtk_adjustment_configure (adjustment,
f * gtk_adjustment_get_value (adjustment),
f * gtk_adjustment_get_lower (adjustment),
f * gtk_adjustment_get_upper (adjustment),
step_increment,
page_increment,
f * gtk_adjustment_get_page_size (adjustment));
gtk_spin_button_set_digits (GTK_SPIN_BUTTON (widget), digits);
/* Finally create a new binding. */
if (factor != 1.0)
{
gdouble *user_data;
user_data = g_new0 (gdouble, 1);
*user_data = factor;
/* With @factor == 1.0, this is equivalent to a
* g_object_bind_property().
*/
binding = g_object_bind_property_full (config, property_name,
widget, "value",
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE,
pika_prop_widget_double_to_factor,
pika_prop_widget_double_from_factor,
user_data, (GDestroyNotify) g_free);
}
else
{
binding = g_object_bind_property (config, property_name,
widget, "value",
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
}
g_object_set_data (G_OBJECT (adjustment),
"pika-prop-adjustment-binding",
binding);
g_object_unref (config);
g_free (property_name);
}
/**
* pika_prop_hscale_new:
* @config: Object to which property is attached.
* @property_name: Name of integer or double property controlled by the scale.
* @step_increment: Step size.
* @page_increment: Page size.
* @digits: Number of digits after decimal point to display.
*
* Creates a horizontal scale to control the value of the specified
* integer or double property.
*
* Returns: (transfer full): A new #GtkScale.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_hscale_new (GObject *config,
const gchar *property_name,
gdouble step_increment,
gdouble page_increment,
gint digits)
{
GParamSpec *param_spec;
GtkWidget *scale;
GtkAdjustment *adjustment;
gdouble value;
gdouble lower;
gdouble upper;
param_spec = find_param_spec (config, property_name, G_STRFUNC);
if (! param_spec)
return NULL;
if (! get_numeric_values (config,
param_spec, &value, &lower, &upper, G_STRFUNC))
return NULL;
if (! G_IS_PARAM_SPEC_DOUBLE (param_spec))
digits = 0;
adjustment = gtk_adjustment_new (value, lower, upper,
step_increment, page_increment, 0.0);
scale = g_object_new (GTK_TYPE_SCALE,
"orientation", GTK_ORIENTATION_HORIZONTAL,
"adjustment", adjustment,
"digits", digits,
NULL);
set_param_spec (G_OBJECT (adjustment), scale, param_spec);
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (pika_prop_adjustment_callback),
config);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_adjustment_notify),
adjustment);
pika_widget_set_bound_property (scale, config, property_name);
gtk_widget_show (scale);
return scale;
}
/**
* pika_prop_scale_entry_new:
* @config: Object to which property is attached.
* @label: (nullable): The text for the #GtkLabel which will appear left of
* the #GtkScale.
* @property_name: Name of integer or double property controlled by the scale.
* @factor: Optional multiplier to convert @property_name's
* range into the #PikaScaleEntry's range. The common
* usage is to set 1.0.
* For non-double properties, no other values than 1.0
* are acceptable.
* @limit_scale: %FALSE if the range of possible values of the
* GtkScale should be the same as of the GtkSpinButton.
* @lower_limit: The scale's lower boundary if @scale_limits is %TRUE.
* @upper_limit: The scale's upper boundary if @scale_limits is %TRUE.
*
* Creates a #PikaScaleEntry (slider and spin button) to set and display
* the value of a specified int or double property with sensible default
* settings depending on the range (decimal places, increments, etc.).
* These settings can be overridden by the relevant widget methods.
*
* If @label is %NULL, the @property_name's nick will be used as label
* of the returned object.
*
* If @factor is not 1.0, the widget's range will be computed based of
* @property_name's range multiplied by @factor. A typical usage would
* be to display a [0.0, 1.0] range as [0.0, 100.0] by setting 100.0 as
* @factor.
*
* See pika_scale_entry_set_bounds() for more information on
* @limit_scale, @lower_limit and @upper_limit.
*
* Returns: (transfer full): The newly allocated #PikaScaleEntry.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_scale_entry_new (GObject *config,
const gchar *property_name,
const gchar *label,
gdouble factor,
gboolean limit_scale,
gdouble lower_limit,
gdouble upper_limit)
{
GtkWidget *widget;
GParamSpec *param_spec;
const gchar *tooltip;
gdouble value;
gdouble lower;
gdouble upper;
gint digits = -1;
g_return_val_if_fail (factor != 0.0, NULL);
param_spec = find_param_spec (config, property_name, G_STRFUNC);
if (! param_spec)
return NULL;
g_return_val_if_fail (G_IS_PARAM_SPEC_DOUBLE (param_spec) || factor == 1.0, NULL);
if (! get_numeric_values (config,
param_spec, &value, &lower, &upper, G_STRFUNC))
return NULL;
if (! label)
label = g_param_spec_get_nick (param_spec);
if (G_IS_PARAM_SPEC_INT (param_spec) || G_IS_PARAM_SPEC_UINT (param_spec))
digits = 0;
widget = pika_scale_entry_new (label, value, lower * factor, upper * factor, digits);
if (limit_scale)
pika_scale_entry_set_bounds (PIKA_SCALE_ENTRY (widget),
lower_limit, upper_limit,
FALSE);
tooltip = g_param_spec_get_blurb (param_spec);
pika_help_set_help_data (widget, tooltip, NULL);
if (factor != 1.0)
{
gdouble *user_data;
user_data = g_new0 (gdouble, 1);
*user_data = factor;
/* With @factor == 1.0, this is equivalent to a
* g_object_bind_property().
*/
g_object_bind_property_full (config, property_name,
widget, "value",
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE,
pika_prop_widget_double_to_factor,
pika_prop_widget_double_from_factor,
user_data, (GDestroyNotify) g_free);
}
else
{
g_object_bind_property (config, property_name,
widget, "value",
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
}
pika_widget_set_bound_property (widget, config, property_name);
return widget;
}
static void
pika_prop_adjustment_callback (GtkAdjustment *adjustment,
GObject *config)
{
GParamSpec *param_spec;
gdouble value;
gdouble *factor;
param_spec = get_param_spec (G_OBJECT (adjustment));
if (! param_spec)
return;
value = gtk_adjustment_get_value (adjustment);
factor = g_object_get_data (G_OBJECT (adjustment),
"pika-prop-adjustment-factor");
if (factor)
value /= *factor;
if (G_IS_PARAM_SPEC_INT (param_spec))
{
gint v;
g_object_get (config, param_spec->name, &v, NULL);
if (v != (gint) value)
g_object_set (config, param_spec->name, (gint) value, NULL);
}
else if (G_IS_PARAM_SPEC_UINT (param_spec))
{
guint v;
g_object_get (config, param_spec->name, &v, NULL);
if (v != (guint) value)
g_object_set (config, param_spec->name, (guint) value, NULL);
}
else if (G_IS_PARAM_SPEC_LONG (param_spec))
{
glong v;
g_object_get (config, param_spec->name, &v, NULL);
if (v != (glong) value)
g_object_set (config, param_spec->name, (glong) value, NULL);
}
else if (G_IS_PARAM_SPEC_ULONG (param_spec))
{
gulong v;
g_object_get (config, param_spec->name, &v, NULL);
if (v != (gulong) value)
g_object_set (config, param_spec->name, (gulong) value, NULL);
}
else if (G_IS_PARAM_SPEC_INT64 (param_spec))
{
gint64 v;
g_object_get (config, param_spec->name, &v, NULL);
if (v != (gint64) value)
g_object_set (config, param_spec->name, (gint64) value, NULL);
}
else if (G_IS_PARAM_SPEC_UINT64 (param_spec))
{
guint64 v;
g_object_get (config, param_spec->name, &v, NULL);
if (v != (guint64) value)
g_object_set (config, param_spec->name, (guint64) value, NULL);
}
else if (G_IS_PARAM_SPEC_DOUBLE (param_spec))
{
gdouble v;
g_object_get (config, param_spec->name, &v, NULL);
if (v != value)
g_object_set (config, param_spec->name, value, NULL);
}
}
static void
pika_prop_adjustment_notify (GObject *config,
GParamSpec *param_spec,
GtkAdjustment *adjustment)
{
gdouble value;
gdouble *factor;
if (G_IS_PARAM_SPEC_INT (param_spec))
{
gint int_value;
g_object_get (config, param_spec->name, &int_value, NULL);
value = int_value;
}
else if (G_IS_PARAM_SPEC_UINT (param_spec))
{
guint uint_value;
g_object_get (config, param_spec->name, &uint_value, NULL);
value = uint_value;
}
else if (G_IS_PARAM_SPEC_LONG (param_spec))
{
glong long_value;
g_object_get (config, param_spec->name, &long_value, NULL);
value = long_value;
}
else if (G_IS_PARAM_SPEC_ULONG (param_spec))
{
gulong ulong_value;
g_object_get (config, param_spec->name, &ulong_value, NULL);
value = ulong_value;
}
else if (G_IS_PARAM_SPEC_INT64 (param_spec))
{
gint64 int64_value;
g_object_get (config, param_spec->name, &int64_value, NULL);
value = int64_value;
}
else if (G_IS_PARAM_SPEC_UINT64 (param_spec))
{
guint64 uint64_value;
g_object_get (config, param_spec->name, &uint64_value, NULL);
#if defined _MSC_VER && (_MSC_VER < 1300)
value = (gint64) uint64_value;
#else
value = uint64_value;
#endif
}
else if (G_IS_PARAM_SPEC_DOUBLE (param_spec))
{
g_object_get (config, param_spec->name, &value, NULL);
}
else
{
g_warning ("%s: unhandled param spec of type %s",
G_STRFUNC, G_PARAM_SPEC_TYPE_NAME (param_spec));
return;
}
factor = g_object_get_data (G_OBJECT (adjustment),
"pika-prop-adjustment-factor");
if (factor)
value *= *factor;
if (gtk_adjustment_get_value (adjustment) != value)
{
g_signal_handlers_block_by_func (adjustment,
pika_prop_adjustment_callback,
config);
gtk_adjustment_set_value (adjustment, value);
g_signal_handlers_unblock_by_func (adjustment,
pika_prop_adjustment_callback,
config);
}
}
/*************/
/* memsize */
/*************/
static void pika_prop_memsize_callback (PikaMemsizeEntry *entry,
GObject *config);
static void pika_prop_memsize_notify (GObject *config,
GParamSpec *param_spec,
PikaMemsizeEntry *entry);
/**
* pika_prop_memsize_entry_new:
* @config: Object to which property is attached.
* @property_name: Name of memsize property.
*
* Creates a #PikaMemsizeEntry (spin button and option menu) to set
* and display the value of the specified memsize property. See
* pika_memsize_entry_new() for more information.
*
* Returns: (transfer full): A new #PikaMemsizeEntry.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_memsize_entry_new (GObject *config,
const gchar *property_name)
{
GParamSpec *param_spec;
GParamSpecUInt64 *uint64_spec;
GtkWidget *entry;
guint64 value;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = check_param_spec_w (config, property_name,
PIKA_TYPE_PARAM_MEMSIZE, G_STRFUNC);
if (! param_spec)
return NULL;
g_object_get (config,
property_name, &value,
NULL);
uint64_spec = G_PARAM_SPEC_UINT64 (param_spec);
g_return_val_if_fail (uint64_spec->minimum <= PIKA_MAX_MEMSIZE, NULL);
g_return_val_if_fail (uint64_spec->maximum <= PIKA_MAX_MEMSIZE, NULL);
entry = pika_memsize_entry_new (value,
uint64_spec->minimum,
uint64_spec->maximum);
set_param_spec (G_OBJECT (entry),
pika_memsize_entry_get_spinbutton (PIKA_MEMSIZE_ENTRY (entry)),
param_spec);
g_signal_connect (entry, "value-changed",
G_CALLBACK (pika_prop_memsize_callback),
config);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_memsize_notify),
entry);
pika_widget_set_bound_property (entry, config, property_name);
gtk_widget_show (entry);
return entry;
}
static void
pika_prop_memsize_callback (PikaMemsizeEntry *entry,
GObject *config)
{
GParamSpec *param_spec;
guint64 value;
guint64 v;
param_spec = get_param_spec (G_OBJECT (entry));
if (! param_spec)
return;
g_return_if_fail (G_IS_PARAM_SPEC_UINT64 (param_spec));
value = pika_memsize_entry_get_value (entry);
g_object_get (config, param_spec->name, &v, NULL);
if (v != value)
g_object_set (config, param_spec->name, value, NULL);
}
static void
pika_prop_memsize_notify (GObject *config,
GParamSpec *param_spec,
PikaMemsizeEntry *entry)
{
guint64 value;
g_return_if_fail (G_IS_PARAM_SPEC_UINT64 (param_spec));
g_object_get (config,
param_spec->name, &value,
NULL);
if (pika_memsize_entry_get_value (entry) != value)
{
g_signal_handlers_block_by_func (entry,
pika_prop_memsize_callback,
config);
pika_memsize_entry_set_value (entry, value);
g_signal_handlers_unblock_by_func (entry,
pika_prop_memsize_callback,
config);
}
}
/***********/
/* label */
/***********/
/**
* pika_prop_label_new:
* @config: Object to which property is attached.
* @property_name: Name of string property.
*
* Creates a #GtkLabel to display the value of the specified property.
* The property should be a string property or at least transformable
* to a string. If the user should be able to edit the string, use
* pika_prop_entry_new() instead.
*
* Returns: (transfer full): A new #GtkLabel widget.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_label_new (GObject *config,
const gchar *property_name)
{
GParamSpec *param_spec;
GtkWidget *label;
const gchar *blurb;
GBindingFlags flags = G_BINDING_SYNC_CREATE;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = find_param_spec (config, property_name, G_STRFUNC);
if (! param_spec)
return NULL;
label = gtk_label_new (NULL);
gtk_widget_set_halign (label, GTK_ALIGN_START);
gtk_widget_show (label);
blurb = g_param_spec_get_blurb (param_spec);
if (blurb)
pika_help_set_help_data (label, blurb, NULL);
/* As labels are read-only widgets, allow read-only properties (though
* we still keep possibility for bidirectional binding, which can be
* useful even with labels).
*/
if (param_spec->flags & G_PARAM_WRITABLE)
flags |= G_BINDING_BIDIRECTIONAL;
g_object_bind_property (config, property_name,
label, "label", flags);
pika_widget_set_bound_property (label, config, property_name);
return label;
}
/***********/
/* entry */
/***********/
static void pika_prop_entry_callback (GtkWidget *entry,
GObject *config);
static void pika_prop_entry_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *entry);
/**
* pika_prop_entry_new:
* @config: Object to which property is attached.
* @property_name: Name of string property.
* @max_len: Maximum allowed length of string.
*
* Creates a #GtkEntry to set and display the value of the specified
* string property.
*
* Returns: (transfer full): A new #GtkEntry widget.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_entry_new (GObject *config,
const gchar *property_name,
gint max_len)
{
GParamSpec *param_spec;
GtkWidget *entry;
gchar *value;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = check_param_spec (config, property_name,
G_TYPE_PARAM_STRING, G_STRFUNC);
if (! param_spec)
return NULL;
g_object_get (config,
property_name, &value,
NULL);
entry = gtk_entry_new ();
gtk_entry_set_text (GTK_ENTRY (entry), value ? value : "");
g_free (value);
if (max_len > 0)
gtk_entry_set_max_length (GTK_ENTRY (entry), max_len);
gtk_editable_set_editable (GTK_EDITABLE (entry),
param_spec->flags & G_PARAM_WRITABLE);
set_param_spec (G_OBJECT (entry), entry, param_spec);
g_signal_connect (entry, "changed",
G_CALLBACK (pika_prop_entry_callback),
config);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_entry_notify),
entry);
pika_widget_set_bound_property (entry, config, property_name);
gtk_widget_show (entry);
return entry;
}
static void
pika_prop_entry_callback (GtkWidget *entry,
GObject *config)
{
GParamSpec *param_spec;
const gchar *value;
gchar *v;
param_spec = get_param_spec (G_OBJECT (entry));
if (! param_spec)
return;
value = gtk_entry_get_text (GTK_ENTRY (entry));
g_object_get (config, param_spec->name, &v, NULL);
if (g_strcmp0 (v, value))
{
g_signal_handlers_block_by_func (config,
pika_prop_entry_notify,
entry);
g_object_set (config, param_spec->name, value, NULL);
g_signal_handlers_unblock_by_func (config,
pika_prop_entry_notify,
entry);
}
g_free (v);
}
static void
pika_prop_entry_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *entry)
{
gchar *value;
g_object_get (config,
param_spec->name, &value,
NULL);
g_signal_handlers_block_by_func (entry,
pika_prop_entry_callback,
config);
gtk_entry_set_text (GTK_ENTRY (entry), value ? value : "");
g_signal_handlers_unblock_by_func (entry,
pika_prop_entry_callback,
config);
g_free (value);
}
/*****************/
/* label entry */
/*****************/
/**
* pika_prop_label_entry_new:
* @config: Object to which property is attached.
* @property_name: Name of string property.
* @max_len: Maximum allowed length of string (set to negative for
* no maximum).
*
* Creates a #PikaLabelEntry to set and display the value of the
* specified string property.
*
* Returns: (transfer full): A new #GtkEntry widget.
*
* Since: 3.0
*/
GtkWidget *
pika_prop_label_entry_new (GObject *config,
const gchar *property_name,
gint max_len)
{
GParamSpec *param_spec;
GtkWidget *label_entry;
GtkWidget *entry;
const gchar *label;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = check_param_spec (config, property_name,
G_TYPE_PARAM_STRING, G_STRFUNC);
if (! param_spec)
return NULL;
label = g_param_spec_get_nick (param_spec);
label_entry = pika_label_entry_new (label);
entry = pika_label_entry_get_entry (PIKA_LABEL_ENTRY (label_entry));
if (max_len > 0)
gtk_entry_set_max_length (GTK_ENTRY (entry), max_len);
gtk_editable_set_editable (GTK_EDITABLE (entry),
param_spec->flags & G_PARAM_WRITABLE);
set_param_spec (G_OBJECT (label_entry), label_entry, param_spec);
g_object_bind_property (config, property_name,
label_entry, "value",
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
pika_widget_set_bound_property (label_entry, config, property_name);
gtk_widget_show (label_entry);
return label_entry;
}
/*****************/
/* text buffer */
/*****************/
static void pika_prop_text_buffer_callback (GtkTextBuffer *text_buffer,
GObject *config);
static void pika_prop_text_buffer_notify (GObject *config,
GParamSpec *param_spec,
GtkTextBuffer *text_buffer);
/**
* pika_prop_text_buffer_new:
* @config: Object to which property is attached.
* @property_name: Name of string property.
* @max_len: Maximum allowed length of text (in characters).
*
* Creates a #GtkTextBuffer to set and display the value of the
* specified string property. Unless the string is expected to
* contain multiple lines or a large amount of text, use
* pika_prop_entry_new() instead. See #GtkTextView for information on
* how to insert a text buffer into a visible widget.
*
* If @max_len is 0 or negative, the text buffer allows an unlimited
* number of characters to be entered.
*
* Returns: (transfer full): A new #GtkTextBuffer.
*
* Since: 2.4
*/
GtkTextBuffer *
pika_prop_text_buffer_new (GObject *config,
const gchar *property_name,
gint max_len)
{
GParamSpec *param_spec;
GtkTextBuffer *text_buffer;
gchar *value;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = check_param_spec_w (config, property_name,
G_TYPE_PARAM_STRING, G_STRFUNC);
if (! param_spec)
return NULL;
g_object_get (config,
property_name, &value,
NULL);
text_buffer = gtk_text_buffer_new (NULL);
gtk_text_buffer_set_text (text_buffer, value ? value : "", -1);
g_free (value);
if (max_len > 0)
g_object_set_data (G_OBJECT (text_buffer), "max-len",
GINT_TO_POINTER (max_len));
set_param_spec (G_OBJECT (text_buffer), NULL, param_spec);
g_signal_connect (text_buffer, "changed",
G_CALLBACK (pika_prop_text_buffer_callback),
config);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_text_buffer_notify),
text_buffer);
return text_buffer;
}
static void
pika_prop_text_buffer_callback (GtkTextBuffer *text_buffer,
GObject *config)
{
GParamSpec *param_spec;
GtkTextIter start_iter;
GtkTextIter end_iter;
gchar *text;
gint max_len;
param_spec = get_param_spec (G_OBJECT (text_buffer));
if (! param_spec)
return;
gtk_text_buffer_get_bounds (text_buffer, &start_iter, &end_iter);
text = gtk_text_buffer_get_text (text_buffer, &start_iter, &end_iter, FALSE);
max_len = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (text_buffer),
"max-length"));
if (max_len > 0 && g_utf8_strlen (text, -1) > max_len)
{
g_message (dngettext (GETTEXT_PACKAGE "-libpika",
"This text input field is limited to %d character.",
"This text input field is limited to %d characters.",
max_len), max_len);
gtk_text_buffer_get_iter_at_offset (text_buffer,
&start_iter, max_len - 1);
gtk_text_buffer_get_end_iter (text_buffer, &end_iter);
/* this calls us recursively, but in the else branch */
gtk_text_buffer_delete (text_buffer, &start_iter, &end_iter);
}
else
{
gchar *v;
g_object_get (config, param_spec->name, &v, NULL);
if (g_strcmp0 (v, text))
{
g_signal_handlers_block_by_func (config,
pika_prop_text_buffer_notify,
text_buffer);
g_object_set (config, param_spec->name, text, NULL);
g_signal_handlers_unblock_by_func (config,
pika_prop_text_buffer_notify,
text_buffer);
}
g_free (v);
}
g_free (text);
}
static void
pika_prop_text_buffer_notify (GObject *config,
GParamSpec *param_spec,
GtkTextBuffer *text_buffer)
{
gchar *value;
g_object_get (config,
param_spec->name, &value,
NULL);
g_signal_handlers_block_by_func (text_buffer,
pika_prop_text_buffer_callback,
config);
gtk_text_buffer_set_text (text_buffer, value ? value : "", -1);
g_signal_handlers_unblock_by_func (text_buffer,
pika_prop_text_buffer_callback,
config);
g_free (value);
}
/***********************/
/* string combo box */
/***********************/
static void pika_prop_string_combo_box_callback (GtkWidget *widget,
GObject *config);
static void pika_prop_string_combo_box_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *widget);
static gboolean
pika_prop_choice_combo_box_is_sensitive (const gchar *nick,
PikaChoice *choice);
/**
* pika_prop_string_combo_box_new:
* @config: Object to which property is attached.
* @property_name: Name of int property controlled by combo box.
* @model: #GtkTreeStore holding list of values
* @id_column: column in @store that holds string IDs
* @label_column: column in @store that holds labels to use in the combo-box
*
* Creates a #PikaStringComboBox widget to display and set the
* specified property. The contents of the widget are determined by
* @store.
*
* Returns: (transfer full): The newly created #PikaStringComboBox widget.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_string_combo_box_new (GObject *config,
const gchar *property_name,
GtkTreeModel *model,
gint id_column,
gint label_column)
{
GParamSpec *param_spec;
GtkWidget *combo_box;
gchar *value;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
g_return_val_if_fail (GTK_IS_TREE_MODEL (model), NULL);
param_spec = check_param_spec_w (config, property_name,
G_TYPE_PARAM_STRING, G_STRFUNC);
if (! param_spec)
return NULL;
g_object_get (config,
property_name, &value,
NULL);
combo_box = pika_string_combo_box_new (model, id_column, label_column);
pika_string_combo_box_set_active (PIKA_STRING_COMBO_BOX (combo_box), value);
g_signal_connect (combo_box, "changed",
G_CALLBACK (pika_prop_string_combo_box_callback),
config);
set_param_spec (G_OBJECT (combo_box), combo_box, param_spec);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_string_combo_box_notify),
combo_box);
pika_widget_set_bound_property (combo_box, config, property_name);
gtk_widget_show (combo_box);
return combo_box;
}
/**
* pika_prop_choice_combo_box_new:
* @config: Object to which property is attached.
* @property_name: Name of %PikaChoice property controlled by combo box.
*
* Creates a #PikaStringComboBox widget to display and set the
* specified property.
*
* Returns: (transfer full): The newly created #PikaStringComboBox widget.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_choice_combo_box_new (GObject *config,
const gchar *property_name)
{
GParamSpec *param_spec;
PikaParamSpecChoice *cspec;
GtkWidget *combo_box;
GtkListStore *store;
GList *values;
GList *iter;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = check_param_spec_w (config, property_name,
PIKA_TYPE_PARAM_CHOICE, G_STRFUNC);
if (! param_spec)
return NULL;
cspec = PIKA_PARAM_SPEC_CHOICE (param_spec);
values = pika_choice_list_nicks (cspec->choice);
store = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_STRING);
for (iter = values; iter; iter = iter->next)
{
const gchar *nick = iter->data;
const gchar *label = pika_choice_get_label (cspec->choice, nick);
gtk_list_store_insert_with_values (store, NULL, -1,
0, nick,
1, label,
-1);
}
combo_box = pika_string_combo_box_new (GTK_TREE_MODEL (store), 0, 1);
g_object_unref (store);
pika_string_combo_box_set_sensitivity (PIKA_STRING_COMBO_BOX (combo_box),
(PikaStringSensitivityFunc) pika_prop_choice_combo_box_is_sensitive,
cspec->choice, NULL);
g_signal_connect_swapped (cspec->choice, "sensitivity-changed",
G_CALLBACK (gtk_widget_queue_draw),
combo_box);
g_object_bind_property (config, property_name,
combo_box, "value",
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
pika_widget_set_bound_property (combo_box, config, property_name);
gtk_widget_show (combo_box);
return combo_box;
}
static void
pika_prop_string_combo_box_callback (GtkWidget *widget,
GObject *config)
{
GParamSpec *param_spec;
gchar *value;
gchar *v;
param_spec = get_param_spec (G_OBJECT (widget));
if (! param_spec)
return;
value = pika_string_combo_box_get_active (PIKA_STRING_COMBO_BOX (widget));
g_object_get (config, param_spec->name, &v, NULL);
if (g_strcmp0 (v, value))
g_object_set (config, param_spec->name, value, NULL);
g_free (value);
g_free (v);
}
static void
pika_prop_string_combo_box_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *combo_box)
{
gchar *value;
g_object_get (config,
param_spec->name, &value,
NULL);
g_signal_handlers_block_by_func (combo_box,
pika_prop_string_combo_box_callback,
config);
pika_string_combo_box_set_active (PIKA_STRING_COMBO_BOX (combo_box), value);
g_signal_handlers_unblock_by_func (combo_box,
pika_prop_string_combo_box_callback,
config);
g_free (value);
}
static gboolean
pika_prop_choice_combo_box_is_sensitive (const gchar *nick,
PikaChoice *choice)
{
return pika_choice_is_valid (choice, nick);
}
/*************************/
/* file chooser button */
/*************************/
static GtkWidget * pika_prop_file_chooser_button_setup (GtkWidget *button,
GObject *config,
GParamSpec *param_spec);
static void pika_prop_file_chooser_button_callback (GtkFileChooser *button,
GObject *config);
static void pika_prop_file_chooser_button_notify (GObject *config,
GParamSpec *param_spec,
GtkFileChooser *button);
/**
* pika_prop_file_chooser_button_new:
* @config: object to which property is attached.
* @property_name: name of path property.
* @title: (nullable): the title of the browse dialog.
* @action: the open mode for the widget.
*
* Creates a #GtkFileChooserButton to edit the specified path property.
* @property_name must represent either a PIKA_PARAM_SPEC_CONFIG_PATH or
* a G_PARAM_SPEC_OBJECT where `value_type == G_TYPE_FILE`.
*
* Note that #GtkFileChooserButton implements the #GtkFileChooser
* interface; you can use the #GtkFileChooser API with it.
*
* Returns: (transfer full): A new #GtkFileChooserButton.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_file_chooser_button_new (GObject *config,
const gchar *property_name,
const gchar *title,
GtkFileChooserAction action)
{
GParamSpec *param_spec;
GtkWidget *button;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
param_spec = find_param_spec (config, property_name, G_STRFUNC);
if (! param_spec)
{
g_warning ("%s: %s has no property named '%s'",
G_STRFUNC, g_type_name (G_TYPE_FROM_INSTANCE (config)),
property_name);
return NULL;
}
if (! PIKA_IS_PARAM_SPEC_CONFIG_PATH (param_spec) &&
(! G_IS_PARAM_SPEC_OBJECT (param_spec) || param_spec->value_type != G_TYPE_FILE))
{
g_warning ("%s: property '%s' of %s is neither a PIKA_PARAM_SPEC_CONFIG_PATH "
"nor a G_PARAM_SPEC_OBJECT of value type G_TYPE_FILE.",
G_STRFUNC, param_spec->name,
g_type_name (param_spec->owner_type));
return NULL;
}
if (! title)
title = g_param_spec_get_nick (param_spec);
button = gtk_file_chooser_button_new (title, action);
return pika_prop_file_chooser_button_setup (button, config, param_spec);
}
/**
* pika_prop_file_chooser_button_new_with_dialog:
* @config: object to which property is attached.
* @property_name: name of path property.
* @dialog: the #GtkFileChooserDialog widget to use.
*
* Creates a #GtkFileChooserButton to edit the specified path property.
*
* The button uses @dialog as it's file-picking window. Note that @dialog
* must be a #GtkFileChooserDialog (or subclass) and must not have
* %GTK_DIALOG_DESTROY_WITH_PARENT set.
*
* Note that #GtkFileChooserButton implements the #GtkFileChooser
* interface; you can use the #GtkFileChooser API with it.
*
* Returns: (transfer full): A new #GtkFileChooserButton.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_file_chooser_button_new_with_dialog (GObject *config,
const gchar *property_name,
GtkWidget *dialog)
{
GParamSpec *param_spec;
GtkWidget *button;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (property_name != NULL, NULL);
g_return_val_if_fail (GTK_IS_FILE_CHOOSER_DIALOG (dialog), NULL);
param_spec = check_param_spec_w (config, property_name,
PIKA_TYPE_PARAM_CONFIG_PATH, G_STRFUNC);
if (! param_spec)
return NULL;
button = gtk_file_chooser_button_new_with_dialog (dialog);
return pika_prop_file_chooser_button_setup (button, config, param_spec);
}
static GtkWidget *
pika_prop_file_chooser_button_setup (GtkWidget *button,
GObject *config,
GParamSpec *param_spec)
{
GFile *file = NULL;
if (PIKA_IS_PARAM_SPEC_CONFIG_PATH (param_spec))
{
gchar *value;
g_object_get (config,
param_spec->name, &value,
NULL);
if (value)
{
file = pika_file_new_for_config_path (value, NULL);
g_free (value);
}
}
else /* G_FILE */
{
g_object_get (config,
param_spec->name, &file,
NULL);
}
if (file)
{
gchar *basename = g_file_get_basename (file);
if (basename && basename[0] == '.')
gtk_file_chooser_set_show_hidden (GTK_FILE_CHOOSER (button), TRUE);
g_free (basename);
gtk_file_chooser_set_file (GTK_FILE_CHOOSER (button), file, NULL);
g_object_unref (file);
}
set_param_spec (G_OBJECT (button), button, param_spec);
g_signal_connect (button, "file-set",
G_CALLBACK (pika_prop_file_chooser_button_callback),
config);
connect_notify (config, param_spec->name,
G_CALLBACK (pika_prop_file_chooser_button_notify),
button);
gtk_widget_show (button);
return button;
}
static void
pika_prop_file_chooser_button_callback (GtkFileChooser *button,
GObject *config)
{
GParamSpec *param_spec;
GFile *file;
param_spec = get_param_spec (G_OBJECT (button));
if (! param_spec)
return;
file = gtk_file_chooser_get_file (button);
if (PIKA_IS_PARAM_SPEC_CONFIG_PATH (param_spec))
{
gchar *value = NULL;
gchar *v;
if (file)
{
value = pika_file_get_config_path (file, NULL);
g_object_unref (file);
}
g_object_get (config, param_spec->name, &v, NULL);
if (g_strcmp0 (v, value))
{
g_signal_handlers_block_by_func (config,
pika_prop_file_chooser_button_notify,
button);
g_object_set (config, param_spec->name, value, NULL);
g_signal_handlers_unblock_by_func (config,
pika_prop_file_chooser_button_notify,
button);
}
g_free (value);
g_free (v);
}
else /* G_FILE */
{
GFile *f = NULL;
g_object_get (config, param_spec->name, &f, NULL);
if (! f || ! file || ! g_file_equal (f, file))
{
g_signal_handlers_block_by_func (config,
pika_prop_file_chooser_button_notify,
button);
g_object_set (config, param_spec->name, file, NULL);
g_signal_handlers_unblock_by_func (config,
pika_prop_file_chooser_button_notify,
button);
}
g_clear_object (&f);
}
g_clear_object (&file);
}
static void
pika_prop_file_chooser_button_notify (GObject *config,
GParamSpec *param_spec,
GtkFileChooser *button)
{
gchar *value;
GFile *file = NULL;
g_object_get (config,
param_spec->name, &value,
NULL);
if (value)
{
file = pika_file_new_for_config_path (value, NULL);
g_free (value);
}
g_signal_handlers_block_by_func (button,
pika_prop_file_chooser_button_callback,
config);
if (file)
{
gtk_file_chooser_set_file (button, file, NULL);
g_object_unref (file);
}
else
{
gtk_file_chooser_unselect_all (button);
}
g_signal_handlers_unblock_by_func (button,
pika_prop_file_chooser_button_callback,
config);
}
/*****************/
/* path editor */
/*****************/
static void pika_prop_path_editor_path_callback (PikaPathEditor *editor,
GObject *config);
static void pika_prop_path_editor_writable_callback (PikaPathEditor *editor,
GObject *config);
static void pika_prop_path_editor_path_notify (GObject *config,
GParamSpec *param_spec,
PikaPathEditor *editor);
static void pika_prop_path_editor_writable_notify (GObject *config,
GParamSpec *param_spec,
PikaPathEditor *editor);
/**
* pika_prop_path_editor_new:
* @config: object to which property is attached.
* @path_property_name: name of path property.
* @writable_property_name: name of writable path property.
* @filechooser_title: window title of #GtkFileChooserDialog widget.
*
* Creates a #PikaPathEditor to edit the specified path and writable
* path properties.
*
* Returns: (transfer full): A new #PikaPathEditor.
**/
GtkWidget *
pika_prop_path_editor_new (GObject *config,
const gchar *path_property_name,
const gchar *writable_property_name,
const gchar *filechooser_title)
{
GParamSpec *path_param_spec;
GParamSpec *writable_param_spec = NULL;
GtkWidget *editor;
gchar *value;
gchar *filename;
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
g_return_val_if_fail (path_property_name != NULL, NULL);
path_param_spec = check_param_spec_w (config, path_property_name,
PIKA_TYPE_PARAM_CONFIG_PATH, G_STRFUNC);
if (! path_param_spec)
return NULL;
if (writable_property_name)
{
writable_param_spec = check_param_spec_w (config, writable_property_name,
PIKA_TYPE_PARAM_CONFIG_PATH,
G_STRFUNC);
if (! writable_param_spec)
return NULL;
}
g_object_get (config,
path_property_name, &value,
NULL);
filename = value ? pika_config_path_expand (value, TRUE, NULL) : NULL;
g_free (value);
editor = pika_path_editor_new (filechooser_title, filename);
g_free (filename);
if (writable_property_name)
{
g_object_get (config,
writable_property_name, &value,
NULL);
filename = value ? pika_config_path_expand (value, TRUE, NULL) : NULL;
g_free (value);
pika_path_editor_set_writable_path (PIKA_PATH_EDITOR (editor), filename);
g_free (filename);
}
g_object_set_data (G_OBJECT (editor), "pika-config-param-spec-path",
path_param_spec);
g_signal_connect (editor, "path-changed",
G_CALLBACK (pika_prop_path_editor_path_callback),
config);
connect_notify (config, path_property_name,
G_CALLBACK (pika_prop_path_editor_path_notify),
editor);
if (writable_property_name)
{
g_object_set_data (G_OBJECT (editor), "pika-config-param-spec-writable",
writable_param_spec);
g_signal_connect (editor, "writable-changed",
G_CALLBACK (pika_prop_path_editor_writable_callback),
config);
connect_notify (config, writable_property_name,
G_CALLBACK (pika_prop_path_editor_writable_notify),
editor);
}
pika_widget_set_bound_property (editor, config, path_property_name);
gtk_widget_show (editor);
return editor;
}
static void
pika_prop_path_editor_path_callback (PikaPathEditor *editor,
GObject *config)
{
GParamSpec *path_param_spec;
GParamSpec *writable_param_spec;
gchar *value;
gchar *utf8;
path_param_spec = g_object_get_data (G_OBJECT (editor),
"pika-config-param-spec-path");
writable_param_spec = g_object_get_data (G_OBJECT (editor),
"pika-config-param-spec-writable");
if (! path_param_spec)
return;
value = pika_path_editor_get_path (editor);
utf8 = value ? pika_config_path_unexpand (value, TRUE, NULL) : NULL;
g_free (value);
g_signal_handlers_block_by_func (config,
pika_prop_path_editor_path_notify,
editor);
g_object_set (config,
path_param_spec->name, utf8,
NULL);
g_signal_handlers_unblock_by_func (config,
pika_prop_path_editor_path_notify,
editor);
g_free (utf8);
if (writable_param_spec)
{
value = pika_path_editor_get_writable_path (editor);
utf8 = value ? pika_config_path_unexpand (value, TRUE, NULL) : NULL;
g_free (value);
g_signal_handlers_block_by_func (config,
pika_prop_path_editor_writable_notify,
editor);
g_object_set (config,
writable_param_spec->name, utf8,
NULL);
g_signal_handlers_unblock_by_func (config,
pika_prop_path_editor_writable_notify,
editor);
g_free (utf8);
}
}
static void
pika_prop_path_editor_writable_callback (PikaPathEditor *editor,
GObject *config)
{
GParamSpec *param_spec;
gchar *value;
gchar *utf8;
param_spec = g_object_get_data (G_OBJECT (editor),
"pika-config-param-spec-writable");
if (! param_spec)
return;
value = pika_path_editor_get_writable_path (editor);
utf8 = value ? pika_config_path_unexpand (value, TRUE, NULL) : NULL;
g_free (value);
g_signal_handlers_block_by_func (config,
pika_prop_path_editor_writable_notify,
editor);
g_object_set (config,
param_spec->name, utf8,
NULL);
g_signal_handlers_unblock_by_func (config,
pika_prop_path_editor_writable_notify,
editor);
g_free (utf8);
}
static void
pika_prop_path_editor_path_notify (GObject *config,
GParamSpec *param_spec,
PikaPathEditor *editor)
{
gchar *value;
gchar *filename;
g_object_get (config,
param_spec->name, &value,
NULL);
filename = value ? pika_config_path_expand (value, TRUE, NULL) : NULL;
g_free (value);
g_signal_handlers_block_by_func (editor,
pika_prop_path_editor_path_callback,
config);
pika_path_editor_set_path (editor, filename);
g_signal_handlers_unblock_by_func (editor,
pika_prop_path_editor_path_callback,
config);
g_free (filename);
}
static void
pika_prop_path_editor_writable_notify (GObject *config,
GParamSpec *param_spec,
PikaPathEditor *editor)
{
gchar *value;
gchar *filename;
g_object_get (config,
param_spec->name, &value,
NULL);
filename = value ? pika_config_path_expand (value, TRUE, NULL) : NULL;
g_free (value);
g_signal_handlers_block_by_func (editor,
pika_prop_path_editor_writable_callback,
config);
pika_path_editor_set_writable_path (editor, filename);
g_signal_handlers_unblock_by_func (editor,
pika_prop_path_editor_writable_callback,
config);
g_free (filename);
}
/***************/
/* sizeentry */
/***************/
static void pika_prop_size_entry_callback (PikaSizeEntry *entry,
GObject *config);
static void pika_prop_size_entry_notify (GObject *config,
GParamSpec *param_spec,
PikaSizeEntry *entry);
static void pika_prop_size_entry_notify_unit (GObject *config,
GParamSpec *param_spec,
PikaSizeEntry *entry);
static gint pika_prop_size_entry_num_chars (gdouble lower,
gdouble upper);
/**
* pika_prop_size_entry_new:
* @config: Object to which property is attached.
* @property_name: Name of int or double property.
* @property_is_pixel: When %TRUE, the property value is in pixels,
* and in the selected unit otherwise.
* @unit_property_name: Name of unit property.
* @unit_format: A printf-like unit-format string as is used with
* pika_unit_menu_new().
* @update_policy: How the automatic pixel <-> real-world-unit
* calculations should be done.
* @resolution: The resolution (in dpi) for the field.
*
* Creates a #PikaSizeEntry to set and display the specified double or
* int property, and its associated unit property. Note that this
* function is only suitable for creating a size entry holding a
* single value. Use pika_prop_coordinates_new() to create a size
* entry holding two values.
*
* Returns: (transfer full): A new #PikaSizeEntry widget.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_size_entry_new (GObject *config,
const gchar *property_name,
gboolean property_is_pixel,
const gchar *unit_property_name,
const gchar *unit_format,
PikaSizeEntryUpdatePolicy update_policy,
gdouble resolution)
{
GtkWidget *entry;
GParamSpec *param_spec;
GParamSpec *unit_param_spec;
gboolean show_pixels;
gboolean show_percent;
gdouble value;
gdouble lower;
gdouble upper;
PikaUnit unit_value;
gint scaled_resolution;
param_spec = find_param_spec (config, property_name, G_STRFUNC);
if (! param_spec)
return NULL;
if (! get_numeric_values (config,
param_spec, &value, &lower, &upper, G_STRFUNC))
return NULL;
if (unit_property_name)
{
GValue value = G_VALUE_INIT;
unit_param_spec = check_param_spec_w (config, unit_property_name,
PIKA_TYPE_PARAM_UNIT, G_STRFUNC);
if (! unit_param_spec)
return NULL;
g_value_init (&value, unit_param_spec->value_type);
g_value_set_int (&value, PIKA_UNIT_PIXEL);
show_pixels = (g_param_value_validate (unit_param_spec,
&value) == FALSE);
g_value_set_int (&value, PIKA_UNIT_PERCENT);
show_percent = (g_param_value_validate (unit_param_spec,
&value) == FALSE);
g_value_unset (&value);
g_object_get (config,
unit_property_name, &unit_value,
NULL);
}
else
{
unit_param_spec = NULL;
unit_value = PIKA_UNIT_INCH;
show_pixels = FALSE;
show_percent = FALSE;
}
if (unit_value != PIKA_UNIT_PIXEL)
scaled_resolution = pika_unit_get_scaled_digits (unit_value, resolution);
else
scaled_resolution = (gint) resolution;
entry = pika_size_entry_new (1, unit_value, unit_format,
show_pixels, show_percent, FALSE,
pika_prop_size_entry_num_chars (lower, upper) + 1 +
scaled_resolution, update_policy);
set_param_spec (NULL,
pika_size_entry_get_help_widget (PIKA_SIZE_ENTRY (entry), 0),
param_spec);
if (unit_param_spec)
set_param_spec (NULL,
pika_size_entry_get_unit_combo (PIKA_SIZE_ENTRY (entry)),
unit_param_spec);
pika_size_entry_set_unit (PIKA_SIZE_ENTRY (entry), unit_value);
if (update_policy == PIKA_SIZE_ENTRY_UPDATE_SIZE)
pika_size_entry_set_resolution (PIKA_SIZE_ENTRY (entry), 0,
resolution, FALSE);
pika_size_entry_set_value_boundaries (PIKA_SIZE_ENTRY (entry), 0,
lower, upper);
g_object_set_data (G_OBJECT (entry), "value-is-pixel",
GINT_TO_POINTER (property_is_pixel ? TRUE : FALSE));
if (property_is_pixel)
pika_size_entry_set_refval (PIKA_SIZE_ENTRY (entry), 0, value);
else
pika_size_entry_set_value (PIKA_SIZE_ENTRY (entry), 0, value);
g_object_set_data (G_OBJECT (entry), "pika-config-param-spec",
param_spec);
g_signal_connect (entry, "refval-changed",
G_CALLBACK (pika_prop_size_entry_callback),
config);
g_signal_connect (entry, "value-changed",
G_CALLBACK (pika_prop_size_entry_callback),
config);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_size_entry_notify),
entry);
if (unit_property_name)
{
g_object_set_data (G_OBJECT (entry), "pika-config-param-spec-unit",
unit_param_spec);
g_signal_connect (entry, "unit-changed",
G_CALLBACK (pika_prop_size_entry_callback),
config);
connect_notify (config, unit_property_name,
G_CALLBACK (pika_prop_size_entry_notify_unit),
entry);
}
pika_widget_set_bound_property (entry, config, property_name);
gtk_widget_show (entry);
return entry;
}
static void
pika_prop_size_entry_callback (PikaSizeEntry *entry,
GObject *config)
{
GParamSpec *param_spec;
GParamSpec *unit_param_spec;
gdouble value;
gboolean value_is_pixel;
PikaUnit unit_value;
param_spec = g_object_get_data (G_OBJECT (entry), "pika-config-param-spec");
if (! param_spec)
return;
unit_param_spec = g_object_get_data (G_OBJECT (entry),
"pika-config-param-spec-unit");
value_is_pixel = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (entry),
"value-is-pixel"));
if (value_is_pixel)
value = pika_size_entry_get_refval (entry, 0);
else
value = pika_size_entry_get_value (entry, 0);
unit_value = pika_size_entry_get_unit (entry);
if (unit_param_spec)
{
PikaUnit old_unit;
g_object_get (config,
unit_param_spec->name, &old_unit,
NULL);
if (unit_value == old_unit)
unit_param_spec = NULL;
}
if (G_IS_PARAM_SPEC_INT (param_spec))
{
g_object_set (config,
param_spec->name, ROUND (value),
unit_param_spec ?
unit_param_spec->name : NULL, unit_value,
NULL);
}
else if (G_IS_PARAM_SPEC_DOUBLE (param_spec))
{
g_object_set (config,
param_spec->name, value,
unit_param_spec ?
unit_param_spec->name : NULL, unit_value,
NULL);
}
}
static void
pika_prop_size_entry_notify (GObject *config,
GParamSpec *param_spec,
PikaSizeEntry *entry)
{
gdouble value;
gdouble entry_value;
gboolean value_is_pixel;
if (G_IS_PARAM_SPEC_INT (param_spec))
{
gint int_value;
g_object_get (config,
param_spec->name, &int_value,
NULL);
value = int_value;
}
else
{
g_object_get (config,
param_spec->name, &value,
NULL);
}
value_is_pixel = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (entry),
"value-is-pixel"));
if (value_is_pixel)
entry_value = pika_size_entry_get_refval (entry, 0);
else
entry_value = pika_size_entry_get_value (entry, 0);
if (value != entry_value)
{
g_signal_handlers_block_by_func (entry,
pika_prop_size_entry_callback,
config);
if (value_is_pixel)
pika_size_entry_set_refval (entry, 0, value);
else
pika_size_entry_set_value (entry, 0, value);
g_signal_handlers_unblock_by_func (entry,
pika_prop_size_entry_callback,
config);
}
}
static void
pika_prop_size_entry_notify_unit (GObject *config,
GParamSpec *param_spec,
PikaSizeEntry *entry)
{
PikaUnit value;
g_object_get (config,
param_spec->name, &value,
NULL);
if (value != pika_size_entry_get_unit (entry))
{
g_signal_handlers_block_by_func (entry,
pika_prop_size_entry_callback,
config);
pika_size_entry_set_unit (entry, value);
g_signal_handlers_unblock_by_func (entry,
pika_prop_size_entry_callback,
config);
}
}
static gint
pika_prop_size_entry_num_chars (gdouble lower,
gdouble upper)
{
gint lower_chars = log (fabs (lower)) / log (10);
gint upper_chars = log (fabs (upper)) / log (10);
if (lower < 0.0)
lower_chars++;
if (upper < 0.0)
upper_chars++;
return MAX (lower_chars, upper_chars);
}
/*****************/
/* coordinates */
/*****************/
static void pika_prop_coordinates_callback (PikaSizeEntry *entry,
GObject *config);
static void pika_prop_coordinates_notify_x (GObject *config,
GParamSpec *param_spec,
PikaSizeEntry *entry);
static void pika_prop_coordinates_notify_y (GObject *config,
GParamSpec *param_spec,
PikaSizeEntry *entry);
static void pika_prop_coordinates_notify_unit (GObject *config,
GParamSpec *param_spec,
PikaSizeEntry *entry);
/**
* pika_prop_coordinates_new:
* @config: Object to which property is attached.
* @x_property_name: Name of int or double property for X coordinate.
* @y_property_name: Name of int or double property for Y coordinate.
* @unit_property_name: Name of unit property.
* @unit_format: A printf-like unit-format string as is used with
* pika_unit_menu_new().
* @update_policy: How the automatic pixel <-> real-world-unit
* calculations should be done.
* @xresolution: The resolution (in dpi) for the X coordinate.
* @yresolution: The resolution (in dpi) for the Y coordinate.
* @has_chainbutton: Whether to add a chainbutton to the size entry.
*
* Creates a #PikaSizeEntry to set and display two double or int
* properties, which will usually represent X and Y coordinates, and
* their associated unit property.
*
* Returns: (transfer full): A new #PikaSizeEntry widget.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_coordinates_new (GObject *config,
const gchar *x_property_name,
const gchar *y_property_name,
const gchar *unit_property_name,
const gchar *unit_format,
PikaSizeEntryUpdatePolicy update_policy,
gdouble xresolution,
gdouble yresolution,
gboolean has_chainbutton)
{
GtkWidget *entry;
GtkWidget *chainbutton = NULL;
entry = pika_size_entry_new (2, PIKA_UNIT_INCH, unit_format,
FALSE, FALSE, TRUE, 10,
update_policy);
if (has_chainbutton)
{
chainbutton = pika_chain_button_new (PIKA_CHAIN_BOTTOM);
gtk_grid_attach (GTK_GRID (entry), chainbutton, 1, 3, 2, 1);
gtk_widget_show (chainbutton);
}
if (! pika_prop_coordinates_connect (config,
x_property_name,
y_property_name,
unit_property_name,
entry,
chainbutton,
xresolution,
yresolution))
{
gtk_widget_destroy (entry);
return NULL;
}
pika_widget_set_bound_property (entry, config, x_property_name);
gtk_widget_show (entry);
return entry;
}
gboolean
pika_prop_coordinates_connect (GObject *config,
const gchar *x_property_name,
const gchar *y_property_name,
const gchar *unit_property_name,
GtkWidget *entry,
GtkWidget *chainbutton,
gdouble xresolution,
gdouble yresolution)
{
GParamSpec *x_param_spec;
GParamSpec *y_param_spec;
GParamSpec *unit_param_spec;
gdouble x_value, x_lower, x_upper;
gdouble y_value, y_lower, y_upper;
PikaUnit unit_value;
gdouble *old_x_value;
gdouble *old_y_value;
PikaUnit *old_unit_value;
gboolean chain_checked;
g_return_val_if_fail (PIKA_IS_SIZE_ENTRY (entry), FALSE);
g_return_val_if_fail (pika_size_entry_get_n_fields (PIKA_SIZE_ENTRY (entry)) == 2,
FALSE);
g_return_val_if_fail (chainbutton == NULL ||
PIKA_IS_CHAIN_BUTTON (chainbutton), FALSE);
x_param_spec = find_param_spec (config, x_property_name, G_STRFUNC);
if (! x_param_spec)
return FALSE;
y_param_spec = find_param_spec (config, y_property_name, G_STRFUNC);
if (! y_param_spec)
return FALSE;
if (! get_numeric_values (config, x_param_spec,
&x_value, &x_lower, &x_upper, G_STRFUNC) ||
! get_numeric_values (config, y_param_spec,
&y_value, &y_lower, &y_upper, G_STRFUNC))
return FALSE;
if (unit_property_name)
{
unit_param_spec = check_param_spec_w (config, unit_property_name,
PIKA_TYPE_PARAM_UNIT, G_STRFUNC);
if (! unit_param_spec)
return FALSE;
g_object_get (config,
unit_property_name, &unit_value,
NULL);
}
else
{
unit_param_spec = NULL;
unit_value = PIKA_UNIT_INCH;
}
set_param_spec (NULL,
pika_size_entry_get_help_widget (PIKA_SIZE_ENTRY (entry), 0),
x_param_spec);
set_param_spec (NULL,
pika_size_entry_get_help_widget (PIKA_SIZE_ENTRY (entry), 1),
y_param_spec);
if (unit_param_spec)
set_param_spec (NULL,
pika_size_entry_get_unit_combo (PIKA_SIZE_ENTRY (entry)),
unit_param_spec);
pika_size_entry_set_unit (PIKA_SIZE_ENTRY (entry), unit_value);
switch (pika_size_entry_get_update_policy (PIKA_SIZE_ENTRY (entry)))
{
case PIKA_SIZE_ENTRY_UPDATE_SIZE:
pika_size_entry_set_resolution (PIKA_SIZE_ENTRY (entry), 0,
xresolution, FALSE);
pika_size_entry_set_resolution (PIKA_SIZE_ENTRY (entry), 1,
yresolution, FALSE);
chain_checked = (ABS (x_value - y_value) < 1);
break;
case PIKA_SIZE_ENTRY_UPDATE_RESOLUTION:
chain_checked = (ABS (x_value - y_value) < PIKA_MIN_RESOLUTION);
break;
default:
chain_checked = (x_value == y_value);
break;
}
pika_size_entry_set_refval_boundaries (PIKA_SIZE_ENTRY (entry), 0,
x_lower, x_upper);
pika_size_entry_set_refval_boundaries (PIKA_SIZE_ENTRY (entry), 1,
y_lower, y_upper);
pika_size_entry_set_refval (PIKA_SIZE_ENTRY (entry), 0, x_value);
pika_size_entry_set_refval (PIKA_SIZE_ENTRY (entry), 1, y_value);
g_object_set_data (G_OBJECT (entry), "pika-config-param-spec-x",
x_param_spec);
g_object_set_data (G_OBJECT (entry), "pika-config-param-spec-y",
y_param_spec);
old_x_value = g_new0 (gdouble, 1);
*old_x_value = x_value;
g_object_set_data_full (G_OBJECT (entry), "old-x-value",
old_x_value,
(GDestroyNotify) g_free);
old_y_value = g_new0 (gdouble, 1);
*old_y_value = y_value;
g_object_set_data_full (G_OBJECT (entry), "old-y-value",
old_y_value,
(GDestroyNotify) g_free);
if (chainbutton)
{
if (chain_checked)
pika_chain_button_set_active (PIKA_CHAIN_BUTTON (chainbutton), TRUE);
g_object_set_data (G_OBJECT (entry), "chainbutton", chainbutton);
}
g_signal_connect (entry, "value-changed",
G_CALLBACK (pika_prop_coordinates_callback),
config);
g_signal_connect (entry, "refval-changed",
G_CALLBACK (pika_prop_coordinates_callback),
config);
connect_notify (config, x_property_name,
G_CALLBACK (pika_prop_coordinates_notify_x),
entry);
connect_notify (config, y_property_name,
G_CALLBACK (pika_prop_coordinates_notify_y),
entry);
if (unit_property_name)
{
g_object_set_data (G_OBJECT (entry), "pika-config-param-spec-unit",
unit_param_spec);
old_unit_value = g_new0 (PikaUnit, 1);
*old_unit_value = unit_value;
g_object_set_data_full (G_OBJECT (entry), "old-unit-value",
old_unit_value,
(GDestroyNotify) g_free);
g_signal_connect (entry, "unit-changed",
G_CALLBACK (pika_prop_coordinates_callback),
config);
connect_notify (config, unit_property_name,
G_CALLBACK (pika_prop_coordinates_notify_unit),
entry);
}
return TRUE;
}
static void
pika_prop_coordinates_callback (PikaSizeEntry *entry,
GObject *config)
{
GParamSpec *x_param_spec;
GParamSpec *y_param_spec;
GParamSpec *unit_param_spec;
gdouble x_value;
gdouble y_value;
PikaUnit unit_value;
gdouble *old_x_value;
gdouble *old_y_value;
PikaUnit *old_unit_value;
gboolean backwards;
x_param_spec = g_object_get_data (G_OBJECT (entry),
"pika-config-param-spec-x");
y_param_spec = g_object_get_data (G_OBJECT (entry),
"pika-config-param-spec-y");
if (! x_param_spec || ! y_param_spec)
return;
unit_param_spec = g_object_get_data (G_OBJECT (entry),
"pika-config-param-spec-unit");
x_value = pika_size_entry_get_refval (entry, 0);
y_value = pika_size_entry_get_refval (entry, 1);
unit_value = pika_size_entry_get_unit (entry);
old_x_value = g_object_get_data (G_OBJECT (entry), "old-x-value");
old_y_value = g_object_get_data (G_OBJECT (entry), "old-y-value");
old_unit_value = g_object_get_data (G_OBJECT (entry), "old-unit-value");
if (! old_x_value || ! old_y_value || (unit_param_spec && ! old_unit_value))
return;
/*
* FIXME: if the entry was created using pika_coordinates_new, then
* the chain button is handled automatically and the following block
* of code is unnecessary (and, in fact, redundant).
*/
if (x_value != y_value)
{
GtkWidget *chainbutton;
chainbutton = g_object_get_data (G_OBJECT (entry), "chainbutton");
if (chainbutton &&
pika_chain_button_get_active (PIKA_CHAIN_BUTTON (chainbutton)) &&
! g_object_get_data (G_OBJECT (chainbutton), "constrains-ratio"))
{
if (x_value != *old_x_value)
y_value = x_value;
else if (y_value != *old_y_value)
x_value = y_value;
}
}
backwards = (*old_x_value == x_value);
if (*old_x_value == x_value &&
*old_y_value == y_value &&
(old_unit_value == NULL || *old_unit_value == unit_value))
return;
*old_x_value = x_value;
*old_y_value = y_value;
if (old_unit_value)
*old_unit_value = unit_value;
if (unit_param_spec)
g_object_set (config,
unit_param_spec->name, unit_value,
NULL);
if (G_IS_PARAM_SPEC_INT (x_param_spec) &&
G_IS_PARAM_SPEC_INT (y_param_spec))
{
if (backwards)
g_object_set (config,
y_param_spec->name, ROUND (y_value),
x_param_spec->name, ROUND (x_value),
NULL);
else
g_object_set (config,
x_param_spec->name, ROUND (x_value),
y_param_spec->name, ROUND (y_value),
NULL);
}
else if (G_IS_PARAM_SPEC_DOUBLE (x_param_spec) &&
G_IS_PARAM_SPEC_DOUBLE (y_param_spec))
{
if (backwards)
g_object_set (config,
y_param_spec->name, y_value,
x_param_spec->name, x_value,
NULL);
else
g_object_set (config,
x_param_spec->name, x_value,
y_param_spec->name, y_value,
NULL);
}
}
static void
pika_prop_coordinates_notify_x (GObject *config,
GParamSpec *param_spec,
PikaSizeEntry *entry)
{
gdouble value;
if (G_IS_PARAM_SPEC_INT (param_spec))
{
gint int_value;
g_object_get (config,
param_spec->name, &int_value,
NULL);
value = int_value;
}
else
{
g_object_get (config,
param_spec->name, &value,
NULL);
}
if (value != pika_size_entry_get_refval (entry, 0))
{
gdouble *old_x_value = g_object_get_data (G_OBJECT (entry),
"old-x-value");
g_signal_handlers_block_by_func (entry,
pika_prop_coordinates_callback,
config);
pika_size_entry_set_refval (entry, 0, value);
if (old_x_value)
*old_x_value = value;
g_signal_emit_by_name (entry, "value-changed",
pika_size_entry_get_value (entry, 0));
g_signal_handlers_unblock_by_func (entry,
pika_prop_coordinates_callback,
config);
}
}
static void
pika_prop_coordinates_notify_y (GObject *config,
GParamSpec *param_spec,
PikaSizeEntry *entry)
{
gdouble value;
if (G_IS_PARAM_SPEC_INT (param_spec))
{
gint int_value;
g_object_get (config,
param_spec->name, &int_value,
NULL);
value = int_value;
}
else
{
g_object_get (config,
param_spec->name, &value,
NULL);
}
if (value != pika_size_entry_get_refval (entry, 1))
{
gdouble *old_y_value = g_object_get_data (G_OBJECT (entry),
"old-y-value");
g_signal_handlers_block_by_func (entry,
pika_prop_coordinates_callback,
config);
pika_size_entry_set_refval (entry, 1, value);
if (old_y_value)
*old_y_value = value;
g_signal_emit_by_name (entry, "value-changed",
pika_size_entry_get_value (entry, 1));
g_signal_handlers_unblock_by_func (entry,
pika_prop_coordinates_callback,
config);
}
}
static void
pika_prop_coordinates_notify_unit (GObject *config,
GParamSpec *param_spec,
PikaSizeEntry *entry)
{
PikaUnit value;
g_object_get (config,
param_spec->name, &value,
NULL);
if (value != pika_size_entry_get_unit (entry))
{
g_signal_handlers_block_by_func (entry,
pika_prop_coordinates_callback,
config);
pika_size_entry_set_unit (entry, value);
g_signal_handlers_unblock_by_func (entry,
pika_prop_coordinates_callback,
config);
}
}
/****************/
/* color area */
/****************/
static void pika_prop_color_area_callback (GtkWidget *widget,
GObject *config);
static void pika_prop_color_area_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *area);
/**
* pika_prop_color_area_new:
* @config: Object to which property is attached.
* @property_name: Name of RGB property.
* @width: Width of color area.
* @height: Height of color area.
* @type: How transparency is represented.
*
* Creates a #PikaColorArea to set and display the value of an RGB
* property.
*
* Returns: (transfer full): A new #PikaColorArea widget.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_color_area_new (GObject *config,
const gchar *property_name,
gint width,
gint height,
PikaColorAreaType type)
{
GParamSpec *param_spec;
GtkWidget *area;
PikaRGB *value;
param_spec = check_param_spec_w (config, property_name,
PIKA_TYPE_PARAM_RGB, G_STRFUNC);
if (! param_spec)
return NULL;
g_object_get (config,
property_name, &value,
NULL);
area = pika_color_area_new (value, type,
GDK_BUTTON1_MASK | GDK_BUTTON2_MASK);
gtk_widget_set_size_request (area, width, height);
g_free (value);
set_param_spec (G_OBJECT (area), area, param_spec);
g_signal_connect (area, "color-changed",
G_CALLBACK (pika_prop_color_area_callback),
config);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_color_area_notify),
area);
pika_widget_set_bound_property (area, config, property_name);
gtk_widget_show (area);
return area;
}
static void
pika_prop_color_area_callback (GtkWidget *area,
GObject *config)
{
GParamSpec *param_spec;
PikaRGB value;
param_spec = get_param_spec (G_OBJECT (area));
if (! param_spec)
return;
pika_color_area_get_color (PIKA_COLOR_AREA (area), &value);
g_signal_handlers_block_by_func (config,
pika_prop_color_area_notify,
area);
g_object_set (config,
param_spec->name, &value,
NULL);
g_signal_handlers_unblock_by_func (config,
pika_prop_color_area_notify,
area);
}
static void
pika_prop_color_area_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *area)
{
PikaRGB *value;
g_object_get (config,
param_spec->name, &value,
NULL);
g_signal_handlers_block_by_func (area,
pika_prop_color_area_callback,
config);
pika_color_area_set_color (PIKA_COLOR_AREA (area), value);
g_free (value);
g_signal_handlers_unblock_by_func (area,
pika_prop_color_area_callback,
config);
}
/**
* pika_prop_color_select_new:
* @config: Object to which property is attached.
* @property_name: Name of RGB property.
* @width: Width of the colorpreview in pixels.
* @height: Height of the colorpreview in pixels.
* @type: How transparency is represented.
*
* Creates a #PikaColorButton to set and display the value of an RGB
* property.
*
* Returns: (transfer full): A new #PikaColorButton widget.
*
* Since: 3.0
*/
GtkWidget *
pika_prop_color_select_new (GObject *config,
const gchar *property_name,
gint width,
gint height,
PikaColorAreaType type)
{
GParamSpec *param_spec;
GtkWidget *button;
PikaRGB *value;
param_spec = check_param_spec_w (config, property_name,
PIKA_TYPE_PARAM_RGB, G_STRFUNC);
if (! param_spec)
return NULL;
g_object_get (config,
property_name, &value,
NULL);
button = pika_color_button_new (g_param_spec_get_nick (param_spec),
width, height, value, type);
g_free (value);
g_object_bind_property (config, property_name,
button, "color",
G_BINDING_BIDIRECTIONAL);
pika_widget_set_bound_property (button, config, property_name);
gtk_widget_show (button);
return button;
}
/**
* pika_prop_label_color_new:
* @config: Object to which property is attached.
* @property_name: Name of RGB property.
* @editable: Whether the widget should allow color editability.
*
* Creates a #PikaLabelColor to set and display the value of an RGB
* property.
*
* Returns: (transfer full): A new #PikaLabelColor widget.
*
* Since: 3.0
*/
GtkWidget *
pika_prop_label_color_new (GObject *config,
const gchar *property_name,
gboolean editable)
{
GParamSpec *param_spec;
GtkWidget *prop_widget;
const gchar *label;
PikaRGB *value;
param_spec = check_param_spec_w (config, property_name,
PIKA_TYPE_PARAM_RGB, G_STRFUNC);
if (! param_spec)
return NULL;
g_object_get (config,
property_name, &value,
NULL);
label = g_param_spec_get_nick (param_spec);
prop_widget = pika_label_color_new (label, value, editable);
g_free (value);
g_object_bind_property (config, property_name,
prop_widget, "value",
G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
pika_widget_set_bound_property (prop_widget, config, property_name);
gtk_widget_show (prop_widget);
return prop_widget;
}
/********************/
/* unit combo box */
/********************/
static void pika_prop_unit_combo_box_callback (GtkWidget *combo,
GObject *config);
static void pika_prop_unit_combo_box_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *combo);
/**
* pika_prop_unit_combo_box_new:
* @config: Object to which property is attached.
* @property_name: Name of Unit property.
*
* Creates a #PikaUnitComboBox to set and display the value of a Unit
* property. See pika_unit_combo_box_new() for more information.
*
* Returns: (transfer full): A new #PikaUnitComboBox widget.
*
* Since: 2.8
*/
GtkWidget *
pika_prop_unit_combo_box_new (GObject *config,
const gchar *property_name)
{
GParamSpec *param_spec;
GtkWidget *combo;
GtkTreeModel *model;
PikaUnit unit;
GValue value = G_VALUE_INIT;
gboolean show_pixels;
gboolean show_percent;
param_spec = check_param_spec_w (config, property_name,
PIKA_TYPE_PARAM_UNIT, G_STRFUNC);
if (! param_spec)
return NULL;
g_value_init (&value, param_spec->value_type);
g_value_set_int (&value, PIKA_UNIT_PIXEL);
show_pixels = (g_param_value_validate (param_spec, &value) == FALSE);
g_value_set_int (&value, PIKA_UNIT_PERCENT);
show_percent = (g_param_value_validate (param_spec, &value) == FALSE);
g_value_unset (&value);
g_object_get (config,
property_name, &unit,
NULL);
combo = pika_unit_combo_box_new ();
model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo));
pika_unit_store_set_has_pixels (PIKA_UNIT_STORE (model), show_pixels);
pika_unit_store_set_has_percent (PIKA_UNIT_STORE (model), show_percent);
pika_unit_combo_box_set_active (PIKA_UNIT_COMBO_BOX (combo), unit);
set_param_spec (G_OBJECT (combo), combo, param_spec);
g_signal_connect (combo, "changed",
G_CALLBACK (pika_prop_unit_combo_box_callback),
config);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_unit_combo_box_notify),
combo);
pika_widget_set_bound_property (combo, config, property_name);
gtk_widget_show (combo);
return combo;
}
static void
pika_prop_unit_combo_box_callback (GtkWidget *combo,
GObject *config)
{
GParamSpec *param_spec;
PikaUnit value;
PikaUnit v;
param_spec = get_param_spec (G_OBJECT (combo));
if (! param_spec)
return;
value = pika_unit_combo_box_get_active (PIKA_UNIT_COMBO_BOX (combo));
g_object_get (config, param_spec->name, &v, NULL);
if (v != value)
{
/* FIXME pika_unit_menu_update (menu, &unit); */
g_signal_handlers_block_by_func (config,
pika_prop_unit_combo_box_notify,
combo);
g_object_set (config, param_spec->name, value, NULL);
g_signal_handlers_unblock_by_func (config,
pika_prop_unit_combo_box_notify,
combo);
}
}
static void
pika_prop_unit_combo_box_notify (GObject *config,
GParamSpec *param_spec,
GtkWidget *combo)
{
PikaUnit unit;
g_object_get (config,
param_spec->name, &unit,
NULL);
g_signal_handlers_block_by_func (combo,
pika_prop_unit_combo_box_callback,
config);
pika_unit_combo_box_set_active (PIKA_UNIT_COMBO_BOX (combo), unit);
/* FIXME pika_unit_menu_update (menu, &unit); */
g_signal_handlers_unblock_by_func (combo,
pika_prop_unit_combo_box_callback,
config);
}
/***************/
/* icon name */
/***************/
/**
* pika_prop_icon_image_new:
* @config: Object to which property is attached.
* @property_name: Name of string property.
* @icon_size: Size of desired icon image.
*
* Creates a widget to display a icon image representing the value of the
* specified string property, which should encode an icon name.
* See gtk_image_new_from_icon_name() for more information.
*
* Returns: (transfer full): A new #GtkImage widget.
*
* Since: 2.10
*/
GtkWidget *
pika_prop_icon_image_new (GObject *config,
const gchar *property_name,
GtkIconSize icon_size)
{
GParamSpec *param_spec;
GtkWidget *image;
gchar *icon_name;
const gchar *blurb;
param_spec = check_param_spec (config, property_name,
G_TYPE_PARAM_STRING, G_STRFUNC);
if (! param_spec)
return NULL;
g_object_get (config,
property_name, &icon_name,
NULL);
image = gtk_image_new_from_icon_name (icon_name, icon_size);
gtk_widget_show (image);
blurb = g_param_spec_get_blurb (param_spec);
if (blurb)
pika_help_set_help_data (image, blurb, NULL);
g_object_bind_property (config, property_name,
image, "icon-name",
G_BINDING_BIDIRECTIONAL);
pika_widget_set_bound_property (image, config, property_name);
g_free (icon_name);
return image;
}
/**************/
/* expander */
/**************/
static void pika_prop_expanded_notify (GtkExpander *expander,
GParamSpec *param_spec,
GObject *config);
static void pika_prop_expander_notify (GObject *config,
GParamSpec *param_spec,
GtkExpander *expander);
/**
* pika_prop_expander_new:
* @config: Object to which property is attached.
* @property_name: Name of boolean property.
* @label: (nullable): Label for expander.
*
* Creates a #GtkExpander controlled by the specified boolean property.
* A value of %TRUE for the property corresponds to the expanded state
* for the widget.
* If @label is %NULL, the @property_name's nick will be used as label
* of the returned widget.
*
* Returns: (transfer full): A new #GtkExpander widget.
*
* Since: 2.4
*/
GtkWidget *
pika_prop_expander_new (GObject *config,
const gchar *property_name,
const gchar *label)
{
GParamSpec *param_spec;
GtkWidget *expander;
gboolean value;
param_spec = check_param_spec_w (config, property_name,
G_TYPE_PARAM_BOOLEAN, G_STRFUNC);
if (! param_spec)
return NULL;
if (! label)
label = g_param_spec_get_nick (param_spec);
g_object_get (config,
property_name, &value,
NULL);
expander = g_object_new (GTK_TYPE_EXPANDER,
"label", label,
"expanded", value,
NULL);
set_param_spec (G_OBJECT (expander), expander, param_spec);
g_signal_connect (expander, "notify::expanded",
G_CALLBACK (pika_prop_expanded_notify),
config);
connect_notify (config, property_name,
G_CALLBACK (pika_prop_expander_notify),
expander);
pika_widget_set_bound_property (expander, config, property_name);
gtk_widget_show (expander);
return expander;
}
static void
pika_prop_expanded_notify (GtkExpander *expander,
GParamSpec *param_spec,
GObject *config)
{
param_spec = get_param_spec (G_OBJECT (expander));
if (! param_spec)
return;
g_object_set (config,
param_spec->name, gtk_expander_get_expanded (expander),
NULL);
}
static void
pika_prop_expander_notify (GObject *config,
GParamSpec *param_spec,
GtkExpander *expander)
{
gboolean value;
g_object_get (config,
param_spec->name, &value,
NULL);
if (gtk_expander_get_expanded (expander) != value)
{
g_signal_handlers_block_by_func (expander,
pika_prop_expanded_notify,
config);
gtk_expander_set_expanded (expander, value);
g_signal_handlers_unblock_by_func (expander,
pika_prop_expanded_notify,
config);
}
}
/*******************************/
/* private utility functions */
/*******************************/
static GQuark pika_prop_widgets_param_spec_quark (void) G_GNUC_CONST;
#define PARAM_SPEC_QUARK (pika_prop_widgets_param_spec_quark ())
static GQuark
pika_prop_widgets_param_spec_quark (void)
{
static GQuark param_spec_quark = 0;
if (! param_spec_quark)
param_spec_quark = g_quark_from_static_string ("pika-config-param-spec");
return param_spec_quark;
}
static void
set_param_spec (GObject *object,
GtkWidget *widget,
GParamSpec *param_spec)
{
if (object)
{
g_object_set_qdata (object, PARAM_SPEC_QUARK, param_spec);
}
if (widget)
{
const gchar *blurb = g_param_spec_get_blurb (param_spec);
if (blurb)
pika_help_set_help_data (widget, blurb, NULL);
}
}
static void
set_radio_spec (GObject *object,
GParamSpec *param_spec)
{
GSList *list;
for (list = gtk_radio_button_get_group (GTK_RADIO_BUTTON (object));
list;
list = g_slist_next (list))
{
set_param_spec (list->data, NULL, param_spec);
}
}
static GParamSpec *
get_param_spec (GObject *object)
{
return g_object_get_qdata (object, PARAM_SPEC_QUARK);
}
static GParamSpec *
find_param_spec (GObject *object,
const gchar *property_name,
const gchar *strloc)
{
GParamSpec *param_spec;
param_spec = g_object_class_find_property (G_OBJECT_GET_CLASS (object),
property_name);
if (! param_spec)
g_warning ("%s: %s has no property named '%s'",
strloc,
g_type_name (G_TYPE_FROM_INSTANCE (object)),
property_name);
return param_spec;
}
/* Compare GType of GParamSpec of object's property to GType.
* Return GParamSpec when equal, else NULL.
*/
static GParamSpec *
check_param_spec_quiet (GObject *object,
const gchar *property_name,
GType type,
const gchar *strloc)
{
GParamSpec *param_spec;
param_spec = find_param_spec (object, property_name, strloc);
if (param_spec && ! g_type_is_a (G_TYPE_FROM_INSTANCE (param_spec), type))
return NULL;
else
return param_spec;
}
static GParamSpec *
check_param_spec (GObject *object,
const gchar *property_name,
GType type,
const gchar *strloc)
{
GParamSpec *param_spec;
param_spec = find_param_spec (object, property_name, strloc);
if (param_spec && ! g_type_is_a (G_TYPE_FROM_INSTANCE (param_spec), type))
{
g_warning ("%s: property '%s' of %s is not a %s",
strloc,
param_spec->name,
g_type_name (param_spec->owner_type),
g_type_name (type));
return NULL;
}
return param_spec;
}
static GParamSpec *
check_param_spec_w (GObject *object,
const gchar *property_name,
GType type,
const gchar *strloc)
{
GParamSpec *param_spec;
param_spec = check_param_spec (object, property_name, type, strloc);
if (param_spec &&
(param_spec->flags & G_PARAM_WRITABLE) == 0)
{
g_warning ("%s: property '%s' of %s is not writable",
strloc,
param_spec->name,
g_type_name (param_spec->owner_type));
return NULL;
}
return param_spec;
}
static gboolean
get_numeric_values (GObject *object,
GParamSpec *param_spec,
gdouble *value,
gdouble *lower,
gdouble *upper,
const gchar *strloc)
{
if (G_IS_PARAM_SPEC_INT (param_spec))
{
GParamSpecInt *int_spec = G_PARAM_SPEC_INT (param_spec);
gint int_value;
g_object_get (object, param_spec->name, &int_value, NULL);
*value = int_value;
*lower = int_spec->minimum;
*upper = int_spec->maximum;
}
else if (G_IS_PARAM_SPEC_UINT (param_spec))
{
GParamSpecUInt *uint_spec = G_PARAM_SPEC_UINT (param_spec);
guint uint_value;
g_object_get (object, param_spec->name, &uint_value, NULL);
*value = uint_value;
*lower = uint_spec->minimum;
*upper = uint_spec->maximum;
}
else if (G_IS_PARAM_SPEC_DOUBLE (param_spec))
{
GParamSpecDouble *double_spec = G_PARAM_SPEC_DOUBLE (param_spec);
g_object_get (object, param_spec->name, value, NULL);
*lower = double_spec->minimum;
*upper = double_spec->maximum;
}
else
{
g_warning ("%s: property '%s' of %s is not numeric",
strloc,
param_spec->name,
g_type_name (G_TYPE_FROM_INSTANCE (object)));
return FALSE;
}
return TRUE;
}
static void
connect_notify (GObject *config,
const gchar *property_name,
GCallback callback,
gpointer callback_data)
{
gchar *notify_name;
notify_name = g_strconcat ("notify::", property_name, NULL);
g_signal_connect_object (config, notify_name, callback, callback_data, 0);
g_free (notify_name);
}
static gboolean
pika_prop_widget_double_to_factor (GBinding *binding,
const GValue *from_value,
GValue *to_value,
gpointer user_data)
{
gdouble *factor = (gdouble*) user_data;
gdouble val = g_value_get_double (from_value);
g_value_set_double (to_value, val * (*factor));
return TRUE;
}
static gboolean
pika_prop_widget_double_from_factor (GBinding *binding,
const GValue *from_value,
GValue *to_value,
gpointer user_data)
{
gdouble *factor = (gdouble*) user_data;
gdouble val = g_value_get_double (from_value);
g_value_set_double (to_value, val / (*factor));
return TRUE;
}
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