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gtk2/gtk/gtktipsquery.c
Matthias Clasen f45a35921a Commit a patch by Behdad to fix typos, omissions and other errors in the 
2006-09-10  Matthias Clasen  <mclasen@redhat.com>

        * Commit a patch by Behdad to fix typos, omissions and other
        errors in the symbol aliasing, and add checks for local PLT
        entries.  (#354687, Behdad Esfahbod)
2006-09-10 06:39:16 +00:00

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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* GtkQueryTips: Query onscreen widgets for their tooltips
* Copyright (C) 1998 Tim Janik
*
* This library is free software; you can redistribute it and/or
* 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
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* 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/.
*/
#undef GTK_DISABLE_DEPRECATED
#include <config.h>
#include "gtktipsquery.h"
#include "gtksignal.h"
#include "gtktooltips.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtkintl.h"
#include "gtkalias.h"
/* --- arguments --- */
enum {
ARG_0,
ARG_EMIT_ALWAYS,
ARG_CALLER,
ARG_LABEL_INACTIVE,
ARG_LABEL_NO_TIP
};
/* --- signals --- */
enum
{
SIGNAL_START_QUERY,
SIGNAL_STOP_QUERY,
SIGNAL_WIDGET_ENTERED,
SIGNAL_WIDGET_SELECTED,
SIGNAL_LAST
};
/* --- prototypes --- */
static void gtk_tips_query_class_init (GtkTipsQueryClass *class);
static void gtk_tips_query_init (GtkTipsQuery *tips_query);
static void gtk_tips_query_destroy (GtkObject *object);
static gint gtk_tips_query_event (GtkWidget *widget,
GdkEvent *event);
static void gtk_tips_query_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_tips_query_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gtk_tips_query_real_start_query (GtkTipsQuery *tips_query);
static void gtk_tips_query_real_stop_query (GtkTipsQuery *tips_query);
static void gtk_tips_query_widget_entered (GtkTipsQuery *tips_query,
GtkWidget *widget,
const gchar *tip_text,
const gchar *tip_private);
/* --- variables --- */
static GtkLabelClass *parent_class = NULL;
static guint tips_query_signals[SIGNAL_LAST] = { 0 };
/* --- functions --- */
GtkType
gtk_tips_query_get_type (void)
{
static GtkType tips_query_type = 0;
if (!tips_query_type)
{
static const GtkTypeInfo tips_query_info =
{
"GtkTipsQuery",
sizeof (GtkTipsQuery),
sizeof (GtkTipsQueryClass),
(GtkClassInitFunc) gtk_tips_query_class_init,
(GtkObjectInitFunc) gtk_tips_query_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
I_("GtkTipsQuery");
tips_query_type = gtk_type_unique (gtk_label_get_type (), &tips_query_info);
}
return tips_query_type;
}
static void
gtk_tips_query_class_init (GtkTipsQueryClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
parent_class = gtk_type_class (gtk_label_get_type ());
object_class->set_arg = gtk_tips_query_set_arg;
object_class->get_arg = gtk_tips_query_get_arg;
object_class->destroy = gtk_tips_query_destroy;
widget_class->event = gtk_tips_query_event;
class->start_query = gtk_tips_query_real_start_query;
class->stop_query = gtk_tips_query_real_stop_query;
class->widget_entered = gtk_tips_query_widget_entered;
class->widget_selected = NULL;
gtk_object_add_arg_type ("GtkTipsQuery::emit-always", GTK_TYPE_BOOL, GTK_ARG_READWRITE | G_PARAM_STATIC_NAME, ARG_EMIT_ALWAYS);
gtk_object_add_arg_type ("GtkTipsQuery::caller", GTK_TYPE_WIDGET, GTK_ARG_READWRITE | G_PARAM_STATIC_NAME, ARG_CALLER);
gtk_object_add_arg_type ("GtkTipsQuery::label-inactive", GTK_TYPE_STRING, GTK_ARG_READWRITE | G_PARAM_STATIC_NAME, ARG_LABEL_INACTIVE);
gtk_object_add_arg_type ("GtkTipsQuery::label-no-tip", GTK_TYPE_STRING, GTK_ARG_READWRITE | G_PARAM_STATIC_NAME, ARG_LABEL_NO_TIP);
tips_query_signals[SIGNAL_START_QUERY] =
gtk_signal_new (I_("start_query"),
GTK_RUN_FIRST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkTipsQueryClass, start_query),
_gtk_marshal_VOID__VOID,
GTK_TYPE_NONE, 0);
tips_query_signals[SIGNAL_STOP_QUERY] =
gtk_signal_new (I_("stop_query"),
GTK_RUN_FIRST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkTipsQueryClass, stop_query),
_gtk_marshal_VOID__VOID,
GTK_TYPE_NONE, 0);
tips_query_signals[SIGNAL_WIDGET_ENTERED] =
gtk_signal_new (I_("widget_entered"),
GTK_RUN_LAST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkTipsQueryClass, widget_entered),
_gtk_marshal_VOID__OBJECT_STRING_STRING,
GTK_TYPE_NONE, 3,
GTK_TYPE_WIDGET,
GTK_TYPE_STRING,
GTK_TYPE_STRING);
tips_query_signals[SIGNAL_WIDGET_SELECTED] =
g_signal_new (I_("widget_selected"),
G_TYPE_FROM_CLASS(object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET(GtkTipsQueryClass, widget_selected),
_gtk_boolean_handled_accumulator, NULL,
_gtk_marshal_BOOLEAN__OBJECT_STRING_STRING_BOXED,
G_TYPE_BOOLEAN, 4,
GTK_TYPE_WIDGET,
G_TYPE_STRING,
G_TYPE_STRING,
GDK_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE);
}
static void
gtk_tips_query_init (GtkTipsQuery *tips_query)
{
tips_query->emit_always = FALSE;
tips_query->in_query = FALSE;
tips_query->label_inactive = g_strdup ("");
tips_query->label_no_tip = g_strdup (_("--- No Tip ---"));
tips_query->caller = NULL;
tips_query->last_crossed = NULL;
tips_query->query_cursor = NULL;
gtk_label_set_text (GTK_LABEL (tips_query), tips_query->label_inactive);
}
static void
gtk_tips_query_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkTipsQuery *tips_query;
tips_query = GTK_TIPS_QUERY (object);
switch (arg_id)
{
case ARG_EMIT_ALWAYS:
tips_query->emit_always = (GTK_VALUE_BOOL (*arg) != FALSE);
break;
case ARG_CALLER:
gtk_tips_query_set_caller (tips_query, GTK_WIDGET (GTK_VALUE_OBJECT (*arg)));
break;
case ARG_LABEL_INACTIVE:
gtk_tips_query_set_labels (tips_query, GTK_VALUE_STRING (*arg), tips_query->label_no_tip);
break;
case ARG_LABEL_NO_TIP:
gtk_tips_query_set_labels (tips_query, tips_query->label_inactive, GTK_VALUE_STRING (*arg));
break;
default:
break;
}
}
static void
gtk_tips_query_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GtkTipsQuery *tips_query;
tips_query = GTK_TIPS_QUERY (object);
switch (arg_id)
{
case ARG_EMIT_ALWAYS:
GTK_VALUE_BOOL (*arg) = tips_query->emit_always;
break;
case ARG_CALLER:
GTK_VALUE_OBJECT (*arg) = (GtkObject*) tips_query->caller;
break;
case ARG_LABEL_INACTIVE:
GTK_VALUE_STRING (*arg) = g_strdup (tips_query->label_inactive);
break;
case ARG_LABEL_NO_TIP:
GTK_VALUE_STRING (*arg) = g_strdup (tips_query->label_no_tip);
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
static void
gtk_tips_query_destroy (GtkObject *object)
{
GtkTipsQuery *tips_query;
g_return_if_fail (GTK_IS_TIPS_QUERY (object));
tips_query = GTK_TIPS_QUERY (object);
if (tips_query->in_query)
gtk_tips_query_stop_query (tips_query);
gtk_tips_query_set_caller (tips_query, NULL);
g_free (tips_query->label_inactive);
tips_query->label_inactive = NULL;
g_free (tips_query->label_no_tip);
tips_query->label_no_tip = NULL;
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
GtkWidget*
gtk_tips_query_new (void)
{
GtkTipsQuery *tips_query;
tips_query = gtk_type_new (gtk_tips_query_get_type ());
return GTK_WIDGET (tips_query);
}
void
gtk_tips_query_set_labels (GtkTipsQuery *tips_query,
const gchar *label_inactive,
const gchar *label_no_tip)
{
gchar *old;
g_return_if_fail (GTK_IS_TIPS_QUERY (tips_query));
g_return_if_fail (label_inactive != NULL);
g_return_if_fail (label_no_tip != NULL);
old = tips_query->label_inactive;
tips_query->label_inactive = g_strdup (label_inactive);
g_free (old);
old = tips_query->label_no_tip;
tips_query->label_no_tip = g_strdup (label_no_tip);
g_free (old);
}
void
gtk_tips_query_set_caller (GtkTipsQuery *tips_query,
GtkWidget *caller)
{
g_return_if_fail (GTK_IS_TIPS_QUERY (tips_query));
g_return_if_fail (tips_query->in_query == FALSE);
if (caller)
g_return_if_fail (GTK_IS_WIDGET (caller));
if (caller)
gtk_widget_ref (caller);
if (tips_query->caller)
gtk_widget_unref (tips_query->caller);
tips_query->caller = caller;
}
void
gtk_tips_query_start_query (GtkTipsQuery *tips_query)
{
g_return_if_fail (GTK_IS_TIPS_QUERY (tips_query));
g_return_if_fail (tips_query->in_query == FALSE);
g_return_if_fail (GTK_WIDGET_REALIZED (tips_query));
tips_query->in_query = TRUE;
gtk_signal_emit (GTK_OBJECT (tips_query), tips_query_signals[SIGNAL_START_QUERY]);
}
void
gtk_tips_query_stop_query (GtkTipsQuery *tips_query)
{
g_return_if_fail (GTK_IS_TIPS_QUERY (tips_query));
g_return_if_fail (tips_query->in_query == TRUE);
gtk_signal_emit (GTK_OBJECT (tips_query), tips_query_signals[SIGNAL_STOP_QUERY]);
tips_query->in_query = FALSE;
}
static void
gtk_tips_query_real_start_query (GtkTipsQuery *tips_query)
{
gint failure;
g_return_if_fail (GTK_IS_TIPS_QUERY (tips_query));
tips_query->query_cursor = gdk_cursor_new_for_display (gtk_widget_get_display (GTK_WIDGET (tips_query)),
GDK_QUESTION_ARROW);
failure = gdk_pointer_grab (GTK_WIDGET (tips_query)->window,
TRUE,
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK,
NULL,
tips_query->query_cursor,
GDK_CURRENT_TIME);
if (failure)
{
gdk_cursor_unref (tips_query->query_cursor);
tips_query->query_cursor = NULL;
}
gtk_grab_add (GTK_WIDGET (tips_query));
}
static void
gtk_tips_query_real_stop_query (GtkTipsQuery *tips_query)
{
g_return_if_fail (GTK_IS_TIPS_QUERY (tips_query));
gtk_grab_remove (GTK_WIDGET (tips_query));
if (tips_query->query_cursor)
{
gdk_display_pointer_ungrab (gtk_widget_get_display (GTK_WIDGET (tips_query)),
GDK_CURRENT_TIME);
gdk_cursor_unref (tips_query->query_cursor);
tips_query->query_cursor = NULL;
}
if (tips_query->last_crossed)
{
gtk_widget_unref (tips_query->last_crossed);
tips_query->last_crossed = NULL;
}
gtk_label_set_text (GTK_LABEL (tips_query), tips_query->label_inactive);
}
static void
gtk_tips_query_widget_entered (GtkTipsQuery *tips_query,
GtkWidget *widget,
const gchar *tip_text,
const gchar *tip_private)
{
g_return_if_fail (GTK_IS_TIPS_QUERY (tips_query));
if (!tip_text)
tip_text = tips_query->label_no_tip;
if (!g_str_equal (GTK_LABEL (tips_query)->label, (gchar*) tip_text))
gtk_label_set_text (GTK_LABEL (tips_query), tip_text);
}
static void
gtk_tips_query_emit_widget_entered (GtkTipsQuery *tips_query,
GtkWidget *widget)
{
GtkTooltipsData *tdata;
if (widget == (GtkWidget*) tips_query)
widget = NULL;
if (widget)
tdata = gtk_tooltips_data_get (widget);
else
tdata = NULL;
if (!widget && tips_query->last_crossed)
{
gtk_signal_emit (GTK_OBJECT (tips_query),
tips_query_signals[SIGNAL_WIDGET_ENTERED],
NULL,
NULL,
NULL);
gtk_widget_unref (tips_query->last_crossed);
tips_query->last_crossed = NULL;
}
else if (widget && widget != tips_query->last_crossed)
{
gtk_widget_ref (widget);
if (tdata || tips_query->emit_always)
gtk_signal_emit (GTK_OBJECT (tips_query),
tips_query_signals[SIGNAL_WIDGET_ENTERED],
widget,
tdata ? tdata->tip_text : NULL,
tdata ? tdata->tip_private : NULL);
if (tips_query->last_crossed)
gtk_widget_unref (tips_query->last_crossed);
tips_query->last_crossed = widget;
}
}
static gint
gtk_tips_query_event (GtkWidget *widget,
GdkEvent *event)
{
GtkTipsQuery *tips_query;
GtkWidget *event_widget;
gboolean event_handled;
g_return_val_if_fail (GTK_IS_TIPS_QUERY (widget), FALSE);
tips_query = GTK_TIPS_QUERY (widget);
if (!tips_query->in_query)
{
if (GTK_WIDGET_CLASS (parent_class)->event)
return GTK_WIDGET_CLASS (parent_class)->event (widget, event);
else
return FALSE;
}
event_widget = gtk_get_event_widget (event);
event_handled = FALSE;
switch (event->type)
{
GdkWindow *pointer_window;
case GDK_LEAVE_NOTIFY:
if (event_widget)
pointer_window = gdk_window_get_pointer (event_widget->window, NULL, NULL, NULL);
else
pointer_window = NULL;
event_widget = NULL;
if (pointer_window)
gdk_window_get_user_data (pointer_window, (gpointer*) &event_widget);
gtk_tips_query_emit_widget_entered (tips_query, event_widget);
event_handled = TRUE;
break;
case GDK_ENTER_NOTIFY:
gtk_tips_query_emit_widget_entered (tips_query, event_widget);
event_handled = TRUE;
break;
case GDK_BUTTON_PRESS:
case GDK_BUTTON_RELEASE:
if (event_widget)
{
if (event_widget == (GtkWidget*) tips_query ||
event_widget == tips_query->caller)
gtk_tips_query_stop_query (tips_query);
else
{
gint stop;
GtkTooltipsData *tdata;
stop = TRUE;
tdata = gtk_tooltips_data_get (event_widget);
if (tdata || tips_query->emit_always)
gtk_signal_emit (GTK_OBJECT (tips_query),
tips_query_signals[SIGNAL_WIDGET_SELECTED],
event_widget,
tdata ? tdata->tip_text : NULL,
tdata ? tdata->tip_private : NULL,
event,
&stop);
if (stop)
gtk_tips_query_stop_query (tips_query);
}
}
event_handled = TRUE;
break;
default:
break;
}
return event_handled;
}
#define __GTK_TIPS_QUERY_C__
#include "gtkaliasdef.c"
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