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/* gtkcheckboxpeer.c -- Native implementation of GtkCheckboxPeer

   Copyright (C) 1998, 1999, 2002, 2003, 2004, 2006

   Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2, or (at your option)

any later version.

GNU Classpath 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

General Public License for more details.

You should have received a copy of the GNU General Public License

along with GNU Classpath; see the file COPYING.  If not, write to the

Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

02110-1301 USA.

Linking this library statically or dynamically with other modules is

making a combined work based on this library.  Thus, the terms and

conditions of the GNU General Public License cover the whole

combination.

As a special exception, the copyright holders of this library give you

permission to link this library with independent modules to produce an

executable, regardless of the license terms of these independent

modules, and to copy and distribute the resulting executable under

terms of your choice, provided that you also meet, for each linked

independent module, the terms and conditions of the license of that

module.  An independent module is a module which is not derived from

or based on this library.  If you modify this library, you may extend

this exception to your version of the library, but you are not

obligated to do so.  If you do not wish to do so, delete this

exception statement from your version. */

#include "gtkpeer.h"

#include "gnu_java_awt_peer_gtk_GtkCheckboxPeer.h"

#include "gnu_java_awt_peer_gtk_GtkComponentPeer.h"

#include "jcl.h"

static jmethodID postItemEventID;

static jmethodID addToGroupMapID;

static GtkWidget *checkbox_get_widget (GtkWidget *widget);

static void item_toggled_cb (GtkToggleButton *item, jobject peer);

void

cp_gtk_checkbox_init_jni (void)

{

  jclass gtkcheckboxpeer;

  gtkcheckboxpeer = (*cp_gtk_gdk_env())->FindClass (cp_gtk_gdk_env(),

                                             "gnu/java/awt/peer/gtk/GtkCheckboxPeer");

  postItemEventID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(), gtkcheckboxpeer,

                                               "postItemEvent",

                                               "(Ljava/lang/Object;Z)V");

  addToGroupMapID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(), gtkcheckboxpeer,

                                               "addToGroupMap",

                                               "(J)V");

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_connectSignals

  (JNIEnv *env, jobject obj)

{

  void *ptr;

  jobject gref;

  GtkWidget *bin;

  gdk_threads_enter ();

  ptr = gtkpeer_get_widget (env, obj);

  gref = gtkpeer_get_global_ref (env, obj);

  bin = checkbox_get_widget (GTK_WIDGET (ptr));

  /* Checkbox signals */

  g_signal_connect (G_OBJECT (bin), "toggled",

                    G_CALLBACK (item_toggled_cb), gref);

  /* Component signals */

  cp_gtk_component_connect_signals (G_OBJECT (bin), gref);

  gdk_threads_leave ();

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_gtkToggleButtonSetActive

  (JNIEnv *env, jobject obj, jboolean is_active)

{

  void *ptr;

  GtkWidget *bin;

  gdk_threads_enter ();

  ptr = gtkpeer_get_widget (env, obj);

  bin = checkbox_get_widget (GTK_WIDGET (ptr));

  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (bin), is_active);

  gdk_threads_leave ();

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_gtkWidgetModifyFont

  (JNIEnv *env, jobject obj, jstring name, jint style, jint size)

{

  const char *font_name;

  void *ptr;

  GtkWidget *button;

  GtkWidget *label;

  PangoFontDescription *font_desc;

  gdk_threads_enter();

  ptr = gtkpeer_get_widget (env, obj);

  button = checkbox_get_widget (GTK_WIDGET (ptr));

  label = gtk_bin_get_child (GTK_BIN(button));

  if (!label)

    return;

  font_name = (*env)->GetStringUTFChars (env, name, NULL);

  font_desc = pango_font_description_from_string (font_name);

  pango_font_description_set_size (font_desc,

                                   size * cp_gtk_dpi_conversion_factor);

  if (style & AWT_STYLE_BOLD)

    pango_font_description_set_weight (font_desc, PANGO_WEIGHT_BOLD);

  if (style & AWT_STYLE_ITALIC)

    pango_font_description_set_style (font_desc, PANGO_STYLE_OBLIQUE);

  gtk_widget_modify_font (GTK_WIDGET(label), font_desc);

  pango_font_description_free (font_desc);

  (*env)->ReleaseStringUTFChars (env, name, font_name);

  gdk_threads_leave();

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_gtkButtonSetLabel

  (JNIEnv *env, jobject obj, jstring label)

{

  const char *c_label;

  GtkWidget *label_widget;

  void *ptr;

  gdk_threads_enter ();

  ptr = gtkpeer_get_widget (env, obj);

  c_label = (*env)->GetStringUTFChars (env, label, NULL);

  label_widget = gtk_bin_get_child (GTK_BIN (checkbox_get_widget (GTK_WIDGET (ptr))));

  gtk_label_set_text (GTK_LABEL (label_widget), c_label);

  (*env)->ReleaseStringUTFChars (env, label, c_label);

  gdk_threads_leave ();

}

/* A check button is created if we are not part of

   a group.

   This function is called when initially creating the

   button, so an eventbox is created.

 */

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_createCheckButton

  (JNIEnv *env, jobject obj)

{

  GtkWidget *button;

  GtkWidget *eventbox;

  gdk_threads_enter ();

  gtkpeer_set_global_ref (env, obj);

  eventbox = gtk_event_box_new ();

  button = gtk_check_button_new_with_label ("");

  gtk_container_add (GTK_CONTAINER (eventbox), button);

  gtk_widget_show (button);

  gtkpeer_set_widget (env, obj, eventbox);

  gdk_threads_leave ();

}

/* A radio button is created if we are part of a group.

   groupPointer points to the corresponding group. If 0,

   a new group is created.

   This function is called when initially creating the

   button, so an eventbox is created.

 */

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_createRadioButton

  (JNIEnv *env, jobject obj, jlong groupPointer)

{

  GtkWidget *button;

  GtkWidget *eventbox;

  GSList *native_group = NULL;

  gdk_threads_enter ();

  gtkpeer_set_global_ref (env, obj);

  eventbox = gtk_event_box_new ();

  if (groupPointer != 0)

  {

    native_group = JLONG_TO_PTR (GSList, groupPointer);

    g_assert (GTK_IS_RADIO_BUTTON (native_group->data));

  }

  button = gtk_radio_button_new_with_label (native_group, "");

  if (native_group == NULL)

    native_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));

  if (g_slist_index (native_group, GTK_RADIO_BUTTON (button)) == -1)

  {

    native_group = g_slist_prepend (native_group, GTK_RADIO_BUTTON (button));

    GTK_RADIO_BUTTON(button)->group = native_group;

  }

  gtk_container_add (GTK_CONTAINER (eventbox), button);

  gtk_widget_show (button);

  gtkpeer_set_widget (env, obj, eventbox);

  (*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), obj,

                                addToGroupMapID,

                                PTR_TO_JLONG (native_group));

  gdk_threads_leave ();

}

/* Add the object to the group pointed to by groupPointer.

   If groupPointer is 0, create a new group and create

   a radio button. Otherwise, creating a radio button in an

   existing group.

 */

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_addToGroup

  (JNIEnv *env, jobject obj, jlong groupPointer)

{

  void *ptr;

  GtkWidget *container;

  GtkWidget *check_button;

  GtkWidget *radio_button;

  const gchar *label;

  GSList *native_group = NULL;

  gdk_threads_enter ();

  ptr = gtkpeer_get_widget (env, obj);

  container = GTK_WIDGET (ptr);

  check_button = checkbox_get_widget (container);

  label = gtk_label_get_text (GTK_LABEL (gtk_bin_get_child

                                        (GTK_BIN (check_button))));

  /* Need to remove the check_button, and replace it with

     a radio button in a group.

   */

  if (groupPointer != 0)

    {

      native_group = JLONG_TO_PTR (GSList, groupPointer);

      g_assert (GTK_IS_RADIO_BUTTON (native_group->data));

    }

  radio_button = gtk_radio_button_new_with_label (native_group, label);

  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (radio_button),

             gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (check_button)));

  if (native_group == NULL)

    native_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (radio_button));

  if (g_slist_index (native_group, GTK_RADIO_BUTTON (radio_button)) == -1)

  {

    native_group = g_slist_prepend (native_group, GTK_RADIO_BUTTON (radio_button));

    GTK_RADIO_BUTTON(radio_button)->group = native_group;

  }

  gtk_container_remove (GTK_CONTAINER (container), check_button);

  gtk_container_add (GTK_CONTAINER (container), radio_button);

  gtk_widget_show (radio_button);

  (*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), obj,

                                addToGroupMapID,

                                PTR_TO_JLONG (native_group));

  gdk_threads_leave ();

}

/* Remove the object from the group pointed to by groupPointer.

   We are removing the radio button and creating a check button.

 */

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_removeFromGroup

  (JNIEnv *env, jobject obj)

{

  void *ptr;

  GtkWidget *container;

  GtkWidget *check_button;

  GtkWidget *radio_button;

  GSList *native_group;

  const gchar *label;

  gdk_threads_enter ();

  ptr = gtkpeer_get_widget (env, obj);

  container = GTK_WIDGET (ptr);

  radio_button = checkbox_get_widget (container);

  label = gtk_label_get_text (GTK_LABEL (gtk_bin_get_child

                                        (GTK_BIN (radio_button))));

  /* Need to remove the radio_button, and replace it with

     a check button.

   */

  check_button = gtk_check_button_new_with_label (label);

  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check_button),

             gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (radio_button)));

  native_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (radio_button));

  native_group = g_slist_remove (native_group, GTK_RADIO_BUTTON (radio_button));

  if (native_group && ! GTK_IS_RADIO_BUTTON (native_group->data))

    native_group = NULL;

  GTK_RADIO_BUTTON(radio_button)->group = NULL;

  gtk_container_remove (GTK_CONTAINER (container), radio_button);

  gtk_container_add (GTK_CONTAINER (container), check_button);

  gtk_widget_show (check_button);

  (*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), obj,

                                addToGroupMapID,

                                PTR_TO_JLONG (native_group));

  gdk_threads_leave ();

}

/* Move the radio button to a new group. If groupPointer is

   0, create a new group.

 */

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_switchToGroup

  (JNIEnv *env, jobject obj, jlong groupPointer)

{

  void *ptr;

  GtkWidget *radio_button;

  GSList *native_group = NULL;

  gdk_threads_enter ();

  ptr = gtkpeer_get_widget (env, obj);

  radio_button = checkbox_get_widget (GTK_WIDGET (ptr));

  native_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (radio_button));

  native_group = g_slist_remove (native_group, GTK_RADIO_BUTTON (radio_button));

  GTK_RADIO_BUTTON(radio_button)->group = NULL;

  if (groupPointer != 0)

  {

    native_group = JLONG_TO_PTR (GSList, groupPointer);

    g_assert (GTK_IS_RADIO_BUTTON (native_group->data));

  }

  gtk_radio_button_set_group (GTK_RADIO_BUTTON (radio_button), native_group);

  native_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (radio_button));

  if (g_slist_index (native_group, GTK_RADIO_BUTTON (radio_button)) == -1)

  {

    native_group = g_slist_prepend (native_group, GTK_RADIO_BUTTON (radio_button));

    GTK_RADIO_BUTTON(radio_button)->group = native_group;

  }

  (*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), obj,

                                addToGroupMapID,

                                PTR_TO_JLONG (native_group));

  gdk_threads_leave ();

}

static void

item_toggled_cb (GtkToggleButton *item, jobject peer)

{

  (*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), peer,

                                postItemEventID,

                                peer,

                                item->active);

}

static GtkWidget *

checkbox_get_widget (GtkWidget *widget)

{

  GtkWidget *wid;

  g_assert (GTK_IS_EVENT_BOX (widget));

  wid = gtk_bin_get_child (GTK_BIN(widget));

  return wid;

}