* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
+ * modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* 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
- * Library General Public License for more details.
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU Library General Public
+ * You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
-#include "gtkruler.h"
+/*
+ * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
+ * file for a list of people on the GTK+ Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
+#include <config.h>
+#include "gtkruler.h"
+#include "gtkintl.h"
+
+enum {
+ PROP_0,
+ PROP_LOWER,
+ PROP_UPPER,
+ PROP_POSITION,
+ PROP_MAX_SIZE
+};
static void gtk_ruler_class_init (GtkRulerClass *klass);
static void gtk_ruler_init (GtkRuler *ruler);
static gint gtk_ruler_expose (GtkWidget *widget,
GdkEventExpose *event);
static void gtk_ruler_make_pixmap (GtkRuler *ruler);
-
+static void gtk_ruler_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gtk_ruler_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
static GtkWidgetClass *parent_class;
-static GtkRulerMetric ruler_metrics[] =
+static const GtkRulerMetric ruler_metrics[] =
{
{"Pixels", "Pi", 1.0, { 1, 2, 5, 10, 25, 50, 100, 250, 500, 1000 }, { 1, 5, 10, 50, 100 }},
{"Inches", "In", 72.0, { 1, 2, 4, 8, 16, 32, 64, 128, 256, 512 }, { 1, 2, 4, 8, 16 }},
};
-guint
-gtk_ruler_get_type ()
+GType
+gtk_ruler_get_type (void)
{
- static guint ruler_type = 0;
+ static GType ruler_type = 0;
if (!ruler_type)
{
- GtkTypeInfo ruler_info =
+ static const GTypeInfo ruler_info =
{
- "GtkRuler",
- sizeof (GtkRuler),
sizeof (GtkRulerClass),
- (GtkClassInitFunc) gtk_ruler_class_init,
- (GtkObjectInitFunc) gtk_ruler_init,
- (GtkArgSetFunc) NULL,
- (GtkArgGetFunc) NULL,
+ NULL, /* base_init */
+ NULL, /* base_finalize */
+ (GClassInitFunc) gtk_ruler_class_init,
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ sizeof (GtkRuler),
+ 0, /* n_preallocs */
+ (GInstanceInitFunc) gtk_ruler_init,
};
- ruler_type = gtk_type_unique (gtk_widget_get_type (), &ruler_info);
+ ruler_type = g_type_register_static (GTK_TYPE_WIDGET, "GtkRuler",
+ &ruler_info, 0);
}
return ruler_type;
static void
gtk_ruler_class_init (GtkRulerClass *class)
{
- GtkObjectClass *object_class;
+ GObjectClass *gobject_class;
GtkWidgetClass *widget_class;
- object_class = (GtkObjectClass*) class;
+ gobject_class = G_OBJECT_CLASS (class);
widget_class = (GtkWidgetClass*) class;
- parent_class = gtk_type_class (gtk_widget_get_type ());
+ parent_class = g_type_class_peek_parent (class);
+
+ gobject_class->set_property = gtk_ruler_set_property;
+ gobject_class->get_property = gtk_ruler_get_property;
widget_class->realize = gtk_ruler_realize;
widget_class->unrealize = gtk_ruler_unrealize;
class->draw_ticks = NULL;
class->draw_pos = NULL;
+
+ g_object_class_install_property (gobject_class,
+ PROP_LOWER,
+ g_param_spec_double ("lower",
+ P_("Lower"),
+ P_("Lower limit of ruler"),
+ -G_MAXDOUBLE,
+ G_MAXDOUBLE,
+ 0.0,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_UPPER,
+ g_param_spec_double ("upper",
+ P_("Upper"),
+ P_("Upper limit of ruler"),
+ -G_MAXDOUBLE,
+ G_MAXDOUBLE,
+ 0.0,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_POSITION,
+ g_param_spec_double ("position",
+ P_("Position"),
+ P_("Position of mark on the ruler"),
+ -G_MAXDOUBLE,
+ G_MAXDOUBLE,
+ 0.0,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_MAX_SIZE,
+ g_param_spec_double ("max_size",
+ P_("Max Size"),
+ P_("Maximum size of the ruler"),
+ -G_MAXDOUBLE,
+ G_MAXDOUBLE,
+ 0.0,
+ G_PARAM_READWRITE));
}
static void
gtk_ruler_set_metric (ruler, GTK_PIXELS);
}
+static void
+gtk_ruler_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GtkRuler *ruler = GTK_RULER (object);
+
+ switch (prop_id)
+ {
+ case PROP_LOWER:
+ gtk_ruler_set_range (ruler, g_value_get_double (value), ruler->upper,
+ ruler->position, ruler->max_size);
+ break;
+ case PROP_UPPER:
+ gtk_ruler_set_range (ruler, ruler->lower, g_value_get_double (value),
+ ruler->position, ruler->max_size);
+ break;
+ case PROP_POSITION:
+ gtk_ruler_set_range (ruler, ruler->lower, ruler->upper,
+ g_value_get_double (value), ruler->max_size);
+ break;
+ case PROP_MAX_SIZE:
+ gtk_ruler_set_range (ruler, ruler->lower, ruler->upper,
+ ruler->position, g_value_get_double (value));
+ break;
+ }
+}
+
+static void
+gtk_ruler_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GtkRuler *ruler = GTK_RULER (object);
+
+ switch (prop_id)
+ {
+ case PROP_LOWER:
+ g_value_set_double (value, ruler->lower);
+ break;
+ case PROP_UPPER:
+ g_value_set_double (value, ruler->upper);
+ break;
+ case PROP_POSITION:
+ g_value_set_double (value, ruler->position);
+ break;
+ case PROP_MAX_SIZE:
+ g_value_set_double (value, ruler->max_size);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
void
gtk_ruler_set_metric (GtkRuler *ruler,
GtkMetricType metric)
{
- g_return_if_fail (ruler != NULL);
g_return_if_fail (GTK_IS_RULER (ruler));
- ruler->metric = &ruler_metrics[metric];
+ ruler->metric = (GtkRulerMetric *) &ruler_metrics[metric];
if (GTK_WIDGET_DRAWABLE (ruler))
gtk_widget_queue_draw (GTK_WIDGET (ruler));
}
+/**
+ * gtk_ruler_get_metric:
+ * @ruler: a #GtkRuler
+ *
+ * Gets the units used for a #GtkRuler. See gtk_ruler_set_metric().
+ *
+ * Return value: the units currently used for @ruler
+ **/
+GtkMetricType
+gtk_ruler_get_metric (GtkRuler *ruler)
+{
+ gint i;
+
+ g_return_val_if_fail (GTK_IS_RULER (ruler), 0);
+
+ for (i = 0; i < G_N_ELEMENTS (ruler_metrics); i++)
+ if (ruler->metric == &ruler_metrics[i])
+ return i;
+
+ g_assert_not_reached ();
+
+ return 0;
+}
+
void
gtk_ruler_set_range (GtkRuler *ruler,
- gfloat lower,
- gfloat upper,
- gfloat position,
- gfloat max_size)
+ gdouble lower,
+ gdouble upper,
+ gdouble position,
+ gdouble max_size)
{
- g_return_if_fail (ruler != NULL);
g_return_if_fail (GTK_IS_RULER (ruler));
- ruler->lower = lower;
- ruler->upper = upper;
- ruler->position = position;
- ruler->max_size = max_size;
+ g_object_freeze_notify (G_OBJECT (ruler));
+ if (ruler->lower != lower)
+ {
+ ruler->lower = lower;
+ g_object_notify (G_OBJECT (ruler), "lower");
+ }
+ if (ruler->upper != upper)
+ {
+ ruler->upper = upper;
+ g_object_notify (G_OBJECT (ruler), "upper");
+ }
+ if (ruler->position != position)
+ {
+ ruler->position = position;
+ g_object_notify (G_OBJECT (ruler), "position");
+ }
+ if (ruler->max_size != max_size)
+ {
+ ruler->max_size = max_size;
+ g_object_notify (G_OBJECT (ruler), "max_size");
+ }
+ g_object_thaw_notify (G_OBJECT (ruler));
if (GTK_WIDGET_DRAWABLE (ruler))
gtk_widget_queue_draw (GTK_WIDGET (ruler));
}
+/**
+ * gtk_ruler_get_range:
+ * @ruler: a #GtkRuler
+ * @lower: location to store lower limit of the ruler, or %NULL
+ * @upper: location to store upper limit of the ruler, or %NULL
+ * @position: location to store the current position of the mark on the ruler, or %NULL
+ * @max_size: location to store the maximum size of the ruler used when calculating
+ * the space to leave for the text, or %NULL.
+ *
+ * Retrieves values indicating the range and current position of a #GtkRuler.
+ * See gtk_ruler_set_range().
+ **/
+void
+gtk_ruler_get_range (GtkRuler *ruler,
+ gdouble *lower,
+ gdouble *upper,
+ gdouble *position,
+ gdouble *max_size)
+{
+ g_return_if_fail (GTK_IS_RULER (ruler));
+
+ if (lower)
+ *lower = ruler->lower;
+ if (upper)
+ *upper = ruler->upper;
+ if (position)
+ *position = ruler->position;
+ if (max_size)
+ *max_size = ruler->max_size;
+}
+
void
gtk_ruler_draw_ticks (GtkRuler *ruler)
{
- g_return_if_fail (ruler != NULL);
g_return_if_fail (GTK_IS_RULER (ruler));
- if (GTK_RULER_CLASS (GTK_OBJECT (ruler)->klass)->draw_ticks)
- (* GTK_RULER_CLASS (GTK_OBJECT (ruler)->klass)->draw_ticks) (ruler);
+ if (GTK_RULER_GET_CLASS (ruler)->draw_ticks)
+ GTK_RULER_GET_CLASS (ruler)->draw_ticks (ruler);
}
void
gtk_ruler_draw_pos (GtkRuler *ruler)
{
- g_return_if_fail (ruler != NULL);
g_return_if_fail (GTK_IS_RULER (ruler));
- if (GTK_RULER_CLASS (GTK_OBJECT (ruler)->klass)->draw_pos)
- (* GTK_RULER_CLASS (GTK_OBJECT (ruler)->klass)->draw_pos) (ruler);
+ if (GTK_RULER_GET_CLASS (ruler)->draw_pos)
+ GTK_RULER_GET_CLASS (ruler)->draw_pos (ruler);
}
GdkWindowAttr attributes;
gint attributes_mask;
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_RULER (widget));
-
ruler = GTK_RULER (widget);
GTK_WIDGET_SET_FLAGS (ruler, GTK_REALIZED);
static void
gtk_ruler_unrealize (GtkWidget *widget)
{
- GtkRuler *ruler;
-
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_RULER (widget));
-
- ruler = GTK_RULER (widget);
+ GtkRuler *ruler = GTK_RULER (widget);
if (ruler->backing_store)
- gdk_pixmap_unref (ruler->backing_store);
+ g_object_unref (ruler->backing_store);
if (ruler->non_gr_exp_gc)
- gdk_gc_destroy (ruler->non_gr_exp_gc);
+ g_object_unref (ruler->non_gr_exp_gc);
ruler->backing_store = NULL;
ruler->non_gr_exp_gc = NULL;
gtk_ruler_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
- GtkRuler *ruler;
+ GtkRuler *ruler = GTK_RULER (widget);
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_RULER (widget));
-
- ruler = GTK_RULER (widget);
widget->allocation = *allocation;
if (GTK_WIDGET_REALIZED (widget))
{
GtkRuler *ruler;
- g_return_val_if_fail (widget != NULL, FALSE);
- g_return_val_if_fail (GTK_IS_RULER (widget), FALSE);
- g_return_val_if_fail (event != NULL, FALSE);
-
if (GTK_WIDGET_DRAWABLE (widget))
{
ruler = GTK_RULER (widget);
- gdk_draw_rectangle (ruler->backing_store,
- widget->style->bg_gc[GTK_STATE_NORMAL],
- TRUE, 0, 0,
- widget->allocation.width,
- widget->allocation.height);
-
gtk_ruler_draw_ticks (ruler);
-
- gtk_draw_shadow (widget->style, ruler->backing_store,
- GTK_STATE_NORMAL, GTK_SHADOW_OUT, 0, 0,
- widget->allocation.width,
- widget->allocation.height);
-
- gdk_draw_pixmap (widget->window,
- ruler->non_gr_exp_gc,
- ruler->backing_store,
- 0, 0, 0, 0,
- widget->allocation.width,
- widget->allocation.height);
-
+
+ gdk_draw_drawable (widget->window,
+ ruler->non_gr_exp_gc,
+ ruler->backing_store,
+ 0, 0, 0, 0,
+ widget->allocation.width,
+ widget->allocation.height);
+
gtk_ruler_draw_pos (ruler);
}
if (ruler->backing_store)
{
- gdk_window_get_size (ruler->backing_store, &width, &height);
+ gdk_drawable_get_size (ruler->backing_store, &width, &height);
if ((width == widget->allocation.width) &&
(height == widget->allocation.height))
return;
- gdk_pixmap_unref (ruler->backing_store);
+ g_object_unref (ruler->backing_store);
}
ruler->backing_store = gdk_pixmap_new (widget->window,
projects / ~andy / gtk / blobdiff