357 lines
9.4 KiB
C
357 lines
9.4 KiB
C
/* GtkCellRendererSpin
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* Copyright (C) 2004 Lorenzo Gil Sanchez
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Authors: Lorenzo Gil Sanchez <lgs@sicem.biz>
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* Carlos Garnacho Parro <carlosg@gnome.org>
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*/
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#include "config.h"
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#include <gdk/gdkkeysyms.h>
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#include "gtkintl.h"
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#include "gtkprivate.h"
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#include "gtkspinbutton.h"
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#include "gtkcellrendererspin.h"
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#include "gtkalias.h"
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#define GTK_CELL_RENDERER_SPIN_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_CELL_RENDERER_SPIN, GtkCellRendererSpinPrivate))
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struct _GtkCellRendererSpinPrivate
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{
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GtkAdjustment *adjustment;
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gdouble climb_rate;
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guint digits;
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};
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static void gtk_cell_renderer_spin_finalize (GObject *object);
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static void gtk_cell_renderer_spin_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *spec);
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static void gtk_cell_renderer_spin_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *spec);
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static GtkCellEditable * gtk_cell_renderer_spin_start_editing (GtkCellRenderer *cell,
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GdkEvent *event,
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GtkWidget *widget,
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const gchar *path,
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GdkRectangle *background_area,
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GdkRectangle *cell_area,
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GtkCellRendererState flags);
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enum {
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PROP_0,
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PROP_ADJUSTMENT,
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PROP_CLIMB_RATE,
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PROP_DIGITS
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};
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#define GTK_CELL_RENDERER_SPIN_PATH "gtk-cell-renderer-spin-path"
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G_DEFINE_TYPE (GtkCellRendererSpin, gtk_cell_renderer_spin, GTK_TYPE_CELL_RENDERER_TEXT)
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static void
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gtk_cell_renderer_spin_class_init (GtkCellRendererSpinClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (klass);
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object_class->finalize = gtk_cell_renderer_spin_finalize;
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object_class->get_property = gtk_cell_renderer_spin_get_property;
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object_class->set_property = gtk_cell_renderer_spin_set_property;
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cell_class->start_editing = gtk_cell_renderer_spin_start_editing;
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/**
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* GtkCellRendererSpin:adjustment:
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*
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* The adjustment that holds the value of the spinbutton.
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* This must be non-%NULL for the cell renderer to be editable.
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*
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* Since: 2.10
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*/
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g_object_class_install_property (object_class,
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PROP_ADJUSTMENT,
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g_param_spec_object ("adjustment",
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P_("Adjustment"),
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P_("The adjustment that holds the value of the spinbutton."),
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GTK_TYPE_ADJUSTMENT,
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GTK_PARAM_READWRITE));
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/**
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* GtkCellRendererSpin:climb-rate:
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*
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* The acceleration rate when you hold down a button.
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*
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* Since: 2.10
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*/
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g_object_class_install_property (object_class,
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PROP_CLIMB_RATE,
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g_param_spec_double ("climb-rate",
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P_("Climb rate"),
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P_("The acceleration rate when you hold down a button"),
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0.0, G_MAXDOUBLE, 0.0,
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GTK_PARAM_READWRITE));
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/**
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* GtkCellRendererSpin:digits:
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*
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* The number of decimal places to display.
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*
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* Since: 2.10
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*/
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g_object_class_install_property (object_class,
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PROP_DIGITS,
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g_param_spec_uint ("digits",
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P_("Digits"),
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P_("The number of decimal places to display"),
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0, 20, 0,
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GTK_PARAM_READWRITE));
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g_type_class_add_private (object_class, sizeof (GtkCellRendererSpinPrivate));
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}
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static void
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gtk_cell_renderer_spin_init (GtkCellRendererSpin *self)
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{
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GtkCellRendererSpinPrivate *priv;
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priv = GTK_CELL_RENDERER_SPIN_GET_PRIVATE (self);
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priv->adjustment = NULL;
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priv->climb_rate = 0.0;
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priv->digits = 0;
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}
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static void
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gtk_cell_renderer_spin_finalize (GObject *object)
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{
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GtkCellRendererSpinPrivate *priv;
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priv = GTK_CELL_RENDERER_SPIN_GET_PRIVATE (object);
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if (priv && priv->adjustment)
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g_object_unref (priv->adjustment);
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G_OBJECT_CLASS (gtk_cell_renderer_spin_parent_class)->finalize (object);
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}
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static void
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gtk_cell_renderer_spin_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkCellRendererSpin *renderer;
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GtkCellRendererSpinPrivate *priv;
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renderer = GTK_CELL_RENDERER_SPIN (object);
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priv = GTK_CELL_RENDERER_SPIN_GET_PRIVATE (renderer);
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switch (prop_id)
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{
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case PROP_ADJUSTMENT:
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g_value_set_object (value, priv->adjustment);
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break;
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case PROP_CLIMB_RATE:
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g_value_set_double (value, priv->climb_rate);
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break;
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case PROP_DIGITS:
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g_value_set_uint (value, priv->digits);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_cell_renderer_spin_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkCellRendererSpin *renderer;
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GtkCellRendererSpinPrivate *priv;
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GObject *obj;
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renderer = GTK_CELL_RENDERER_SPIN (object);
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priv = GTK_CELL_RENDERER_SPIN_GET_PRIVATE (renderer);
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switch (prop_id)
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{
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case PROP_ADJUSTMENT:
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obj = g_value_get_object (value);
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if (priv->adjustment)
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{
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g_object_unref (priv->adjustment);
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priv->adjustment = NULL;
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}
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if (obj)
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priv->adjustment = GTK_ADJUSTMENT (g_object_ref_sink (obj));
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break;
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case PROP_CLIMB_RATE:
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priv->climb_rate = g_value_get_double (value);
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break;
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case PROP_DIGITS:
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priv->digits = g_value_get_uint (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static gboolean
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gtk_cell_renderer_spin_focus_out_event (GtkWidget *widget,
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GdkEvent *event,
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gpointer data)
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{
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const gchar *path;
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const gchar *new_text;
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gboolean canceled;
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g_object_get (widget,
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"editing-canceled", &canceled,
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NULL);
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g_signal_handlers_disconnect_by_func (widget,
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gtk_cell_renderer_spin_focus_out_event,
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data);
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gtk_cell_renderer_stop_editing (GTK_CELL_RENDERER (data), canceled);
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if (!canceled)
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{
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path = g_object_get_data (G_OBJECT (widget), GTK_CELL_RENDERER_SPIN_PATH);
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new_text = gtk_entry_get_text (GTK_ENTRY (widget));
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g_signal_emit_by_name (data, "edited", path, new_text);
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}
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return FALSE;
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}
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static gboolean
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gtk_cell_renderer_spin_key_press_event (GtkWidget *widget,
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GdkEventKey *event,
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gpointer data)
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{
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if (event->state == 0)
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{
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if (event->keyval == GDK_Up)
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{
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gtk_spin_button_spin (GTK_SPIN_BUTTON (widget), GTK_SPIN_STEP_FORWARD, 1);
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return TRUE;
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}
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else if (event->keyval == GDK_Down)
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{
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gtk_spin_button_spin (GTK_SPIN_BUTTON (widget), GTK_SPIN_STEP_BACKWARD, 1);
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return TRUE;
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}
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}
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return FALSE;
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}
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static gboolean
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gtk_cell_renderer_spin_button_press_event (GtkWidget *widget,
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GdkEventButton *event,
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gpointer user_data)
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{
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/* Block 2BUTTON and 3BUTTON here, so that they won't be eaten
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* by tree view.
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*/
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if (event->type == GDK_2BUTTON_PRESS
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|| event->type == GDK_3BUTTON_PRESS)
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return TRUE;
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return FALSE;
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}
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static GtkCellEditable *
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gtk_cell_renderer_spin_start_editing (GtkCellRenderer *cell,
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GdkEvent *event,
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GtkWidget *widget,
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const gchar *path,
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GdkRectangle *background_area,
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GdkRectangle *cell_area,
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GtkCellRendererState flags)
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{
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GtkCellRendererSpinPrivate *priv;
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GtkCellRendererText *cell_text;
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GtkWidget *spin;
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cell_text = GTK_CELL_RENDERER_TEXT (cell);
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priv = GTK_CELL_RENDERER_SPIN_GET_PRIVATE (cell);
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if (!cell_text->editable)
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return NULL;
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if (!priv->adjustment)
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return NULL;
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spin = gtk_spin_button_new (priv->adjustment,
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priv->climb_rate, priv->digits);
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g_signal_connect (spin, "button-press-event",
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G_CALLBACK (gtk_cell_renderer_spin_button_press_event),
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NULL);
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if (cell_text->text)
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gtk_spin_button_set_value (GTK_SPIN_BUTTON (spin),
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g_ascii_strtod (cell_text->text, NULL));
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g_object_set_data_full (G_OBJECT (spin), GTK_CELL_RENDERER_SPIN_PATH,
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g_strdup (path), g_free);
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g_signal_connect (G_OBJECT (spin), "focus-out-event",
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G_CALLBACK (gtk_cell_renderer_spin_focus_out_event),
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cell);
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g_signal_connect (G_OBJECT (spin), "key-press-event",
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G_CALLBACK (gtk_cell_renderer_spin_key_press_event),
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cell);
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gtk_widget_show (spin);
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return GTK_CELL_EDITABLE (spin);
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}
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/**
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* gtk_cell_renderer_spin_new:
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*
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* Creates a new #GtkCellRendererSpin.
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*
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* Returns: a new #GtkCellRendererSpin
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*
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* Since: 2.10
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*/
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GtkCellRenderer *
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gtk_cell_renderer_spin_new (void)
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{
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return g_object_new (GTK_TYPE_CELL_RENDERER_SPIN, NULL);
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}
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#define __GTK_CELL_RENDERER_SPIN_C__
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#include "gtkaliasdef.c"
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