forked from AuroraMiddleware/gtk
525 lines
14 KiB
C
525 lines
14 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* GtkQueryTips: Query onscreen widgets for their tooltips
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* Copyright (C) 1998 Tim Janik
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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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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#undef GTK_DISABLE_DEPRECATED
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#include "config.h"
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#include "gtktipsquery.h"
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#include "gtksignal.h"
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#include "gtktooltips.h"
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#include "gtkmain.h"
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#include "gtkmarshalers.h"
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#include "gtkintl.h"
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#include "gtkalias.h"
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/* --- arguments --- */
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enum {
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ARG_0,
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ARG_EMIT_ALWAYS,
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ARG_CALLER,
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ARG_LABEL_INACTIVE,
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ARG_LABEL_NO_TIP
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};
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/* --- signals --- */
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enum
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{
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SIGNAL_START_QUERY,
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SIGNAL_STOP_QUERY,
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SIGNAL_WIDGET_ENTERED,
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SIGNAL_WIDGET_SELECTED,
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SIGNAL_LAST
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};
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/* --- prototypes --- */
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static void gtk_tips_query_class_init (GtkTipsQueryClass *class);
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static void gtk_tips_query_init (GtkTipsQuery *tips_query);
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static void gtk_tips_query_destroy (GtkObject *object);
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static gint gtk_tips_query_event (GtkWidget *widget,
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GdkEvent *event);
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static void gtk_tips_query_set_arg (GtkObject *object,
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GtkArg *arg,
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guint arg_id);
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static void gtk_tips_query_get_arg (GtkObject *object,
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GtkArg *arg,
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guint arg_id);
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static void gtk_tips_query_real_start_query (GtkTipsQuery *tips_query);
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static void gtk_tips_query_real_stop_query (GtkTipsQuery *tips_query);
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static void gtk_tips_query_widget_entered (GtkTipsQuery *tips_query,
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GtkWidget *widget,
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const gchar *tip_text,
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const gchar *tip_private);
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/* --- variables --- */
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static GtkLabelClass *parent_class = NULL;
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static guint tips_query_signals[SIGNAL_LAST] = { 0 };
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/* --- functions --- */
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GtkType
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gtk_tips_query_get_type (void)
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{
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static GtkType tips_query_type = 0;
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if (!tips_query_type)
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{
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static const GtkTypeInfo tips_query_info =
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{
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"GtkTipsQuery",
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sizeof (GtkTipsQuery),
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sizeof (GtkTipsQueryClass),
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(GtkClassInitFunc) gtk_tips_query_class_init,
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(GtkObjectInitFunc) gtk_tips_query_init,
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/* reserved_1 */ NULL,
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/* reserved_2 */ NULL,
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(GtkClassInitFunc) NULL,
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};
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I_("GtkTipsQuery");
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tips_query_type = gtk_type_unique (gtk_label_get_type (), &tips_query_info);
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}
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return tips_query_type;
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}
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static void
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gtk_tips_query_class_init (GtkTipsQueryClass *class)
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{
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GtkObjectClass *object_class;
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GtkWidgetClass *widget_class;
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object_class = (GtkObjectClass*) class;
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widget_class = (GtkWidgetClass*) class;
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parent_class = gtk_type_class (gtk_label_get_type ());
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object_class->set_arg = gtk_tips_query_set_arg;
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object_class->get_arg = gtk_tips_query_get_arg;
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object_class->destroy = gtk_tips_query_destroy;
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widget_class->event = gtk_tips_query_event;
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class->start_query = gtk_tips_query_real_start_query;
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class->stop_query = gtk_tips_query_real_stop_query;
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class->widget_entered = gtk_tips_query_widget_entered;
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class->widget_selected = NULL;
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gtk_object_add_arg_type ("GtkTipsQuery::emit-always", GTK_TYPE_BOOL, GTK_ARG_READWRITE | G_PARAM_STATIC_NAME, ARG_EMIT_ALWAYS);
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gtk_object_add_arg_type ("GtkTipsQuery::caller", GTK_TYPE_WIDGET, GTK_ARG_READWRITE | G_PARAM_STATIC_NAME, ARG_CALLER);
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gtk_object_add_arg_type ("GtkTipsQuery::label-inactive", GTK_TYPE_STRING, GTK_ARG_READWRITE | G_PARAM_STATIC_NAME, ARG_LABEL_INACTIVE);
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gtk_object_add_arg_type ("GtkTipsQuery::label-no-tip", GTK_TYPE_STRING, GTK_ARG_READWRITE | G_PARAM_STATIC_NAME, ARG_LABEL_NO_TIP);
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tips_query_signals[SIGNAL_START_QUERY] =
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gtk_signal_new (I_("start-query"),
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GTK_RUN_FIRST,
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GTK_CLASS_TYPE (object_class),
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GTK_SIGNAL_OFFSET (GtkTipsQueryClass, start_query),
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_gtk_marshal_VOID__VOID,
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GTK_TYPE_NONE, 0);
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tips_query_signals[SIGNAL_STOP_QUERY] =
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gtk_signal_new (I_("stop-query"),
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GTK_RUN_FIRST,
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GTK_CLASS_TYPE (object_class),
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GTK_SIGNAL_OFFSET (GtkTipsQueryClass, stop_query),
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_gtk_marshal_VOID__VOID,
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GTK_TYPE_NONE, 0);
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tips_query_signals[SIGNAL_WIDGET_ENTERED] =
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gtk_signal_new (I_("widget-entered"),
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GTK_RUN_LAST,
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GTK_CLASS_TYPE (object_class),
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GTK_SIGNAL_OFFSET (GtkTipsQueryClass, widget_entered),
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_gtk_marshal_VOID__OBJECT_STRING_STRING,
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GTK_TYPE_NONE, 3,
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GTK_TYPE_WIDGET,
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GTK_TYPE_STRING,
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GTK_TYPE_STRING);
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tips_query_signals[SIGNAL_WIDGET_SELECTED] =
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g_signal_new (I_("widget-selected"),
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G_TYPE_FROM_CLASS(object_class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET(GtkTipsQueryClass, widget_selected),
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_gtk_boolean_handled_accumulator, NULL,
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_gtk_marshal_BOOLEAN__OBJECT_STRING_STRING_BOXED,
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G_TYPE_BOOLEAN, 4,
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GTK_TYPE_WIDGET,
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G_TYPE_STRING,
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G_TYPE_STRING,
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GDK_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE);
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}
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static void
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gtk_tips_query_init (GtkTipsQuery *tips_query)
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{
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tips_query->emit_always = FALSE;
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tips_query->in_query = FALSE;
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tips_query->label_inactive = g_strdup ("");
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tips_query->label_no_tip = g_strdup (_("--- No Tip ---"));
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tips_query->caller = NULL;
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tips_query->last_crossed = NULL;
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tips_query->query_cursor = NULL;
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gtk_label_set_text (GTK_LABEL (tips_query), tips_query->label_inactive);
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}
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static void
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gtk_tips_query_set_arg (GtkObject *object,
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GtkArg *arg,
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guint arg_id)
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{
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GtkTipsQuery *tips_query;
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tips_query = GTK_TIPS_QUERY (object);
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switch (arg_id)
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{
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case ARG_EMIT_ALWAYS:
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tips_query->emit_always = (GTK_VALUE_BOOL (*arg) != FALSE);
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break;
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case ARG_CALLER:
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gtk_tips_query_set_caller (tips_query, GTK_WIDGET (GTK_VALUE_OBJECT (*arg)));
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break;
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case ARG_LABEL_INACTIVE:
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gtk_tips_query_set_labels (tips_query, GTK_VALUE_STRING (*arg), tips_query->label_no_tip);
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break;
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case ARG_LABEL_NO_TIP:
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gtk_tips_query_set_labels (tips_query, tips_query->label_inactive, GTK_VALUE_STRING (*arg));
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break;
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default:
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break;
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}
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}
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static void
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gtk_tips_query_get_arg (GtkObject *object,
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GtkArg *arg,
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guint arg_id)
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{
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GtkTipsQuery *tips_query;
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tips_query = GTK_TIPS_QUERY (object);
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switch (arg_id)
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{
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case ARG_EMIT_ALWAYS:
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GTK_VALUE_BOOL (*arg) = tips_query->emit_always;
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break;
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case ARG_CALLER:
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GTK_VALUE_OBJECT (*arg) = (GtkObject*) tips_query->caller;
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break;
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case ARG_LABEL_INACTIVE:
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GTK_VALUE_STRING (*arg) = g_strdup (tips_query->label_inactive);
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break;
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case ARG_LABEL_NO_TIP:
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GTK_VALUE_STRING (*arg) = g_strdup (tips_query->label_no_tip);
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break;
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default:
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arg->type = GTK_TYPE_INVALID;
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break;
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}
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}
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static void
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gtk_tips_query_destroy (GtkObject *object)
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{
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GtkTipsQuery *tips_query = GTK_TIPS_QUERY (object);
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if (tips_query->in_query)
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gtk_tips_query_stop_query (tips_query);
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gtk_tips_query_set_caller (tips_query, NULL);
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g_free (tips_query->label_inactive);
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tips_query->label_inactive = NULL;
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g_free (tips_query->label_no_tip);
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tips_query->label_no_tip = NULL;
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GTK_OBJECT_CLASS (parent_class)->destroy (object);
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}
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GtkWidget*
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gtk_tips_query_new (void)
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{
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GtkTipsQuery *tips_query;
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tips_query = gtk_type_new (gtk_tips_query_get_type ());
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return GTK_WIDGET (tips_query);
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}
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void
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gtk_tips_query_set_labels (GtkTipsQuery *tips_query,
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const gchar *label_inactive,
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const gchar *label_no_tip)
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{
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gchar *old;
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g_return_if_fail (GTK_IS_TIPS_QUERY (tips_query));
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g_return_if_fail (label_inactive != NULL);
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g_return_if_fail (label_no_tip != NULL);
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old = tips_query->label_inactive;
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tips_query->label_inactive = g_strdup (label_inactive);
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g_free (old);
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old = tips_query->label_no_tip;
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tips_query->label_no_tip = g_strdup (label_no_tip);
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g_free (old);
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}
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void
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gtk_tips_query_set_caller (GtkTipsQuery *tips_query,
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GtkWidget *caller)
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{
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g_return_if_fail (GTK_IS_TIPS_QUERY (tips_query));
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g_return_if_fail (tips_query->in_query == FALSE);
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if (caller)
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g_return_if_fail (GTK_IS_WIDGET (caller));
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if (caller)
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g_object_ref (caller);
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if (tips_query->caller)
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g_object_unref (tips_query->caller);
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tips_query->caller = caller;
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}
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void
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gtk_tips_query_start_query (GtkTipsQuery *tips_query)
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{
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g_return_if_fail (GTK_IS_TIPS_QUERY (tips_query));
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g_return_if_fail (tips_query->in_query == FALSE);
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g_return_if_fail (gtk_widget_get_realized (GTK_WIDGET (tips_query)));
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tips_query->in_query = TRUE;
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gtk_signal_emit (GTK_OBJECT (tips_query), tips_query_signals[SIGNAL_START_QUERY]);
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}
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void
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gtk_tips_query_stop_query (GtkTipsQuery *tips_query)
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{
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g_return_if_fail (GTK_IS_TIPS_QUERY (tips_query));
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g_return_if_fail (tips_query->in_query == TRUE);
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gtk_signal_emit (GTK_OBJECT (tips_query), tips_query_signals[SIGNAL_STOP_QUERY]);
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tips_query->in_query = FALSE;
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}
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static void
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gtk_tips_query_real_start_query (GtkTipsQuery *tips_query)
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{
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gint failure;
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g_return_if_fail (GTK_IS_TIPS_QUERY (tips_query));
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tips_query->query_cursor = gdk_cursor_new_for_display (gtk_widget_get_display (GTK_WIDGET (tips_query)),
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GDK_QUESTION_ARROW);
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failure = gdk_pointer_grab (GTK_WIDGET (tips_query)->window,
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TRUE,
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GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
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GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK,
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NULL,
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tips_query->query_cursor,
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GDK_CURRENT_TIME);
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if (failure)
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{
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gdk_cursor_unref (tips_query->query_cursor);
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tips_query->query_cursor = NULL;
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}
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gtk_grab_add (GTK_WIDGET (tips_query));
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}
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static void
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gtk_tips_query_real_stop_query (GtkTipsQuery *tips_query)
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{
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g_return_if_fail (GTK_IS_TIPS_QUERY (tips_query));
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gtk_grab_remove (GTK_WIDGET (tips_query));
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if (tips_query->query_cursor)
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{
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gdk_display_pointer_ungrab (gtk_widget_get_display (GTK_WIDGET (tips_query)),
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GDK_CURRENT_TIME);
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gdk_cursor_unref (tips_query->query_cursor);
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tips_query->query_cursor = NULL;
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}
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if (tips_query->last_crossed)
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{
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g_object_unref (tips_query->last_crossed);
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tips_query->last_crossed = NULL;
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}
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gtk_label_set_text (GTK_LABEL (tips_query), tips_query->label_inactive);
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}
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static void
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gtk_tips_query_widget_entered (GtkTipsQuery *tips_query,
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GtkWidget *widget,
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const gchar *tip_text,
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const gchar *tip_private)
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{
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g_return_if_fail (GTK_IS_TIPS_QUERY (tips_query));
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if (!tip_text)
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tip_text = tips_query->label_no_tip;
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if (!g_str_equal (GTK_LABEL (tips_query)->label, (gchar*) tip_text))
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gtk_label_set_text (GTK_LABEL (tips_query), tip_text);
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}
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static void
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gtk_tips_query_emit_widget_entered (GtkTipsQuery *tips_query,
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GtkWidget *widget)
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{
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GtkTooltipsData *tdata;
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if (widget == (GtkWidget*) tips_query)
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widget = NULL;
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if (widget)
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tdata = gtk_tooltips_data_get (widget);
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else
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tdata = NULL;
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if (!widget && tips_query->last_crossed)
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{
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gtk_signal_emit (GTK_OBJECT (tips_query),
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tips_query_signals[SIGNAL_WIDGET_ENTERED],
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NULL,
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NULL,
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NULL);
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g_object_unref (tips_query->last_crossed);
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tips_query->last_crossed = NULL;
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}
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else if (widget && widget != tips_query->last_crossed)
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{
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g_object_ref (widget);
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if (tdata || tips_query->emit_always)
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gtk_signal_emit (GTK_OBJECT (tips_query),
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tips_query_signals[SIGNAL_WIDGET_ENTERED],
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widget,
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tdata ? tdata->tip_text : NULL,
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tdata ? tdata->tip_private : NULL);
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if (tips_query->last_crossed)
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g_object_unref (tips_query->last_crossed);
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tips_query->last_crossed = widget;
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}
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}
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static gint
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gtk_tips_query_event (GtkWidget *widget,
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GdkEvent *event)
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{
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GtkTipsQuery *tips_query;
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GtkWidget *event_widget;
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gboolean event_handled;
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g_return_val_if_fail (GTK_IS_TIPS_QUERY (widget), FALSE);
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tips_query = GTK_TIPS_QUERY (widget);
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if (!tips_query->in_query)
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{
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if (GTK_WIDGET_CLASS (parent_class)->event)
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return GTK_WIDGET_CLASS (parent_class)->event (widget, event);
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else
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return FALSE;
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}
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event_widget = gtk_get_event_widget (event);
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event_handled = FALSE;
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switch (event->type)
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{
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GdkWindow *pointer_window;
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case GDK_LEAVE_NOTIFY:
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if (event_widget)
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pointer_window = gdk_window_get_pointer (event_widget->window, NULL, NULL, NULL);
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else
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pointer_window = NULL;
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event_widget = NULL;
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if (pointer_window)
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{
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gpointer event_widget_ptr;
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gdk_window_get_user_data (pointer_window, &event_widget_ptr);
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event_widget = event_widget_ptr;
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}
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gtk_tips_query_emit_widget_entered (tips_query, event_widget);
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event_handled = TRUE;
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break;
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|
|
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"
|