gtk2/gtk/gtkarrow.c

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/* GTK - The GIMP Toolkit
* 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 Lesser General Public
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* 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
* Lesser General Public License for more details.
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*
* 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.
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*/
/*
* Modified by the GTK+ Team and others 1997-2001. 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 <math.h>
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#include "gtkarrow.h"
#include "gtkintl.h"
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#define MIN_ARROW_SIZE 11
enum {
PROP_0,
PROP_ARROW_TYPE,
PROP_SHADOW_TYPE,
PROP_LAST
};
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static void gtk_arrow_class_init (GtkArrowClass *klass);
static void gtk_arrow_init (GtkArrow *arrow);
static gint gtk_arrow_expose (GtkWidget *widget,
GdkEventExpose *event);
static void gtk_arrow_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_arrow_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
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GType
configure.in acheader.h gdk/gdkwindow.c Check for Shape extension both on Sun May 3 13:38:22 1998 Owen Taylor <otaylor@gtk.org> * configure.in acheader.h gdk/gdkwindow.c Check for Shape extension both on the client and server side. (And, more importantly, check for the shape extension so we may include -lXext even when compiling with --disable-xshm) Don't set override_redirect on all shaped windows. It isn't necessary. * gdk/gdkwindow.c: Set ->colormap to NULL for root and foreign windows. Use this to check if we need to get the colormap from X. Fri May 1 22:32:47 1998 Owen Taylor <otaylor@gtk.org> * gtk/gtkbutton.c (gtk_button_paint): Draw the areas between the default and the button always in GTK_STATE_NORMAL. * gtk/gtkrange.c (gtk_range_style_set): Added a style_set callback. Fri May 1 16:40:57 1998 Owen Taylor <otaylor@gtk.org> * gdk/gdkpixmap.c (gdk_pixmap_colormap_create_from_xpmp[_d]): Fix a buffer overflow on pixmaps that claim to have more than 31 characters per pixel. (gdk_pixmap_read_string): Don't wrap around strings longer than half of address space ;-) * gtk/gtk[vh]ruler.c gtk/gtkinputdialog.c: Expand some buffers that were used for printing integers. * */* (almost): Style: All int foo () { ... } changed to int foo (void) { ... } ^^^^^^^ This is why some many files changed Even where there were proper prototypes elsewhere. * gdk/gxid.c (handle_claim_device): Some extra checks. It isn't safe against being fed bad X id's, but at least it should be safe against deleting all your files.
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gtk_arrow_get_type (void)
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{
static GType arrow_type = 0;
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if (!arrow_type)
{
static const GTypeInfo arrow_info =
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{
sizeof (GtkArrowClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_arrow_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkArrow),
0, /* n_preallocs */
(GInstanceInitFunc) gtk_arrow_init,
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};
arrow_type = g_type_register_static (GTK_TYPE_MISC, "GtkArrow",
&arrow_info, 0);
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}
return arrow_type;
}
static void
gtk_arrow_class_init (GtkArrowClass *class)
{
GObjectClass *gobject_class;
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GtkWidgetClass *widget_class;
gobject_class = (GObjectClass*) class;
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widget_class = (GtkWidgetClass*) class;
gobject_class->set_property = gtk_arrow_set_property;
gobject_class->get_property = gtk_arrow_get_property;
g_object_class_install_property (gobject_class,
PROP_ARROW_TYPE,
g_param_spec_enum ("arrow_type",
P_("Arrow direction"),
P_("The direction the arrow should point"),
GTK_TYPE_ARROW_TYPE,
GTK_ARROW_RIGHT,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (gobject_class,
PROP_SHADOW_TYPE,
g_param_spec_enum ("shadow_type",
P_("Arrow shadow"),
P_("Appearance of the shadow surrounding the arrow"),
GTK_TYPE_SHADOW_TYPE,
GTK_SHADOW_OUT,
G_PARAM_READABLE | G_PARAM_WRITABLE));
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widget_class->expose_event = gtk_arrow_expose;
}
static void
gtk_arrow_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkArrow *arrow;
arrow = GTK_ARROW (object);
switch (prop_id)
{
case PROP_ARROW_TYPE:
gtk_arrow_set (arrow,
g_value_get_enum (value),
arrow->shadow_type);
break;
case PROP_SHADOW_TYPE:
gtk_arrow_set (arrow,
arrow->arrow_type,
g_value_get_enum (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_arrow_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkArrow *arrow;
arrow = GTK_ARROW (object);
switch (prop_id)
{
case PROP_ARROW_TYPE:
g_value_set_enum (value, arrow->arrow_type);
break;
case PROP_SHADOW_TYPE:
g_value_set_enum (value, arrow->shadow_type);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
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static void
gtk_arrow_init (GtkArrow *arrow)
{
GTK_WIDGET_SET_FLAGS (arrow, GTK_NO_WINDOW);
GTK_WIDGET (arrow)->requisition.width = MIN_ARROW_SIZE + GTK_MISC (arrow)->xpad * 2;
GTK_WIDGET (arrow)->requisition.height = MIN_ARROW_SIZE + GTK_MISC (arrow)->ypad * 2;
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arrow->arrow_type = GTK_ARROW_RIGHT;
arrow->shadow_type = GTK_SHADOW_OUT;
}
GtkWidget*
gtk_arrow_new (GtkArrowType arrow_type,
GtkShadowType shadow_type)
{
GtkArrow *arrow;
arrow = g_object_new (GTK_TYPE_ARROW, NULL);
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arrow->arrow_type = arrow_type;
arrow->shadow_type = shadow_type;
return GTK_WIDGET (arrow);
}
void
gtk_arrow_set (GtkArrow *arrow,
GtkArrowType arrow_type,
GtkShadowType shadow_type)
{
g_return_if_fail (GTK_IS_ARROW (arrow));
if ( ((GtkArrowType) arrow->arrow_type != arrow_type)
|| ((GtkShadowType) arrow->shadow_type != shadow_type))
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{
g_object_freeze_notify (G_OBJECT (arrow));
if ((GtkArrowType) arrow->arrow_type != arrow_type)
{
arrow->arrow_type = arrow_type;
g_object_notify (G_OBJECT (arrow), "arrow_type");
}
if ((GtkShadowType) arrow->shadow_type != shadow_type)
{
arrow->shadow_type = shadow_type;
g_object_notify (G_OBJECT (arrow), "shadow_type");
}
g_object_thaw_notify (G_OBJECT (arrow));
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if (GTK_WIDGET_DRAWABLE (arrow))
gtk_widget_queue_draw (GTK_WIDGET (arrow));
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}
}
static gboolean
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gtk_arrow_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkArrow *arrow;
GtkMisc *misc;
GtkShadowType shadow_type;
gint width, height;
gint x, y;
gint extent;
gfloat xalign;
GtkArrowType effective_arrow_type;
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if (GTK_WIDGET_DRAWABLE (widget))
{
arrow = GTK_ARROW (widget);
misc = GTK_MISC (widget);
width = widget->allocation.width - misc->xpad * 2;
height = widget->allocation.height - misc->ypad * 2;
extent = MIN (width, height) * 0.7;
effective_arrow_type = arrow->arrow_type;
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if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
xalign = misc->xalign;
else
{
xalign = 1.0 - misc->xalign;
if (arrow->arrow_type == GTK_ARROW_LEFT)
effective_arrow_type = GTK_ARROW_RIGHT;
else if (arrow->arrow_type == GTK_ARROW_RIGHT)
effective_arrow_type = GTK_ARROW_LEFT;
}
x = floor (widget->allocation.x + misc->xpad
+ ((widget->allocation.width - extent) * xalign)
+ 0.5);
y = floor (widget->allocation.y + misc->ypad
+ ((widget->allocation.height - extent) * misc->yalign)
+ 0.5);
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shadow_type = arrow->shadow_type;
if (widget->state == GTK_STATE_ACTIVE)
{
if (shadow_type == GTK_SHADOW_IN)
shadow_type = GTK_SHADOW_OUT;
else if (shadow_type == GTK_SHADOW_OUT)
shadow_type = GTK_SHADOW_IN;
else if (shadow_type == GTK_SHADOW_ETCHED_IN)
shadow_type = GTK_SHADOW_ETCHED_OUT;
else if (shadow_type == GTK_SHADOW_ETCHED_OUT)
shadow_type = GTK_SHADOW_ETCHED_IN;
}
gtk_paint_arrow (widget->style, widget->window,
widget->state, shadow_type,
&event->area, widget, "arrow",
effective_arrow_type, TRUE,
x, y, extent, extent);
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}
return FALSE;
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}