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/* gtkbuttonpeer.c -- Native implementation of GtkButtonPeer

   Copyright (C) 1998, 1999 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_GtkButtonPeer.h"

static jmethodID postActionEventID;

void

cp_gtk_button_init_jni (JNIEnv* env)

{

  jclass gtkbuttonpeer;

  gtkbuttonpeer = (*env)->FindClass (env,

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

  postActionEventID = (*env)->GetMethodID (cp_gtk_gdk_env(), gtkbuttonpeer,

                                           "postActionEvent", "(I)V");

}

static void clicked_cb (GtkButton *button,

                        jobject peer);

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkButtonPeer_create

  (JNIEnv *env, jobject obj, jstring label)

{

  const char *c_label;

  GtkWidget *eventbox;

  GtkWidget *button;

  gdk_threads_enter ();

  gtkpeer_set_global_ref (env, obj);

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

  eventbox = gtk_event_box_new ();

  button = gtk_button_new_with_label (c_label);

  gtk_container_add (GTK_CONTAINER (eventbox), button);

  gtk_widget_show (button);

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

  gtkpeer_set_widget (env, obj, eventbox);

  gdk_threads_leave ();

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkButtonPeer_gtkWidgetGetPreferredDimensions

  (JNIEnv *env, jobject obj, jintArray jdims)

{

  void *ptr;

  jint *dims;

  GtkWidget *button;

  GtkWidget *label;

  GtkRequisition current_req;

  GtkRequisition current_label_req;

  GtkRequisition natural_req;

  gdk_threads_enter ();

  ptr = gtkpeer_get_widget (env, obj);

  button = gtk_bin_get_child (GTK_BIN (ptr));

  label = gtk_bin_get_child (GTK_BIN (button));

  dims = (*env)->GetIntArrayElements (env, jdims, 0);

  dims[0] = dims[1] = 0;

  /* Save the button's current size request. */

  gtk_widget_size_request (GTK_WIDGET (button), &current_req);

  /* Save the label's current size request. */

  gtk_widget_size_request (GTK_WIDGET (label), &current_label_req);

  /* Get the widget's "natural" size request. */

  gtk_widget_set_size_request (GTK_WIDGET (button), -1, -1);

  gtk_widget_set_size_request (GTK_WIDGET (label), -1, -1);

  gtk_widget_size_request (GTK_WIDGET (button), &natural_req);

  /* Reset the button's size request. */

  gtk_widget_set_size_request (GTK_WIDGET (button),

                               current_req.width, current_req.height);

  /* Reset the label's size request. */

  gtk_widget_set_size_request (GTK_WIDGET (label),

                               current_label_req.width, current_label_req.height);

  dims[0] = natural_req.width;

  dims[1] = natural_req.height;

  (*env)->ReleaseIntArrayElements (env, jdims, dims, 0);

  gdk_threads_leave ();

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkButtonPeer_connectSignals

  (JNIEnv *env, jobject obj)

{

  GtkWidget *widget;

  jobject gref;

  GtkWidget *button;

  gdk_threads_enter ();

  widget = gtkpeer_get_widget (env, obj);

  gref = gtkpeer_get_global_ref (env, obj);

  button = gtk_bin_get_child (GTK_BIN (widget));

  /* Button signals */

  g_signal_connect (G_OBJECT (button), "clicked",

                    G_CALLBACK (clicked_cb), gref);

  /* Component signals */

  cp_gtk_component_connect_signals (G_OBJECT (button), gref);

  gdk_threads_leave ();

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkButtonPeer_gtkSetLabel

  (JNIEnv *env, jobject obj, jstring jtext)

{

  const char *text;

  GtkWidget *button;

  GtkWidget *label;

  void *ptr;

  gdk_threads_enter ();

  ptr = gtkpeer_get_widget (env, obj);

  text = (*env)->GetStringUTFChars (env, jtext, NULL);

  button = gtk_bin_get_child (GTK_BIN (ptr));

  label = gtk_bin_get_child (GTK_BIN (button));

  gtk_label_set_text (GTK_LABEL (label), text);

  (*env)->ReleaseStringUTFChars (env, jtext, text);

  gdk_threads_leave ();

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkButtonPeer_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);

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

  button = gtk_bin_get_child (GTK_BIN (ptr));

  label = gtk_bin_get_child (GTK_BIN (button));

  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_GtkButtonPeer_gtkWidgetSetBackground

  (JNIEnv *env, jobject obj, jint red, jint green, jint blue)

{

  GdkColor normal_color;

  GdkColor prelight_color;

  GdkColor active_color;

  int prelight_red;

  int prelight_blue;

  int prelight_green;

  GtkWidget *button;

  void *ptr;

  gdk_threads_enter ();

  ptr = gtkpeer_get_widget (env, obj);

  normal_color.red = (red / 255.0) * 65535;

  normal_color.green = (green / 255.0) * 65535;

  normal_color.blue = (blue / 255.0) * 65535;

  /* This calculation only approximate the active color produced by

     Sun's AWT. */

  active_color.red = 0.85 * (red / 255.0) * 65535;

  active_color.green = 0.85 * (green / 255.0) * 65535;

  active_color.blue = 0.85 * (blue / 255.0) * 65535;

  /* There is no separate prelight color in Motif. */

  prelight_red = 1.15 * (red / 255.0) * 65535;

  prelight_green = 1.15 * (green / 255.0) * 65535;

  prelight_blue = 1.15 * (blue / 255.0) * 65535;

  prelight_color.red = prelight_red > 65535 ? 65535 : prelight_red;

  prelight_color.green = prelight_green > 65535 ? 65535 : prelight_green;

  prelight_color.blue = prelight_blue > 65535 ? 65535 : prelight_blue;

  button = gtk_bin_get_child (GTK_BIN (ptr));

  gtk_widget_modify_bg (button, GTK_STATE_NORMAL, &normal_color);

  gtk_widget_modify_bg (button, GTK_STATE_ACTIVE, &active_color);

  gtk_widget_modify_bg (button, GTK_STATE_PRELIGHT, &prelight_color);

  gdk_threads_leave ();

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkButtonPeer_gtkWidgetSetForeground

  (JNIEnv *env, jobject obj, jint red, jint green, jint blue)

{

  GdkColor color;

  GtkWidget *button;

  GtkWidget *label;

  void *ptr;

  gdk_threads_enter ();

  ptr = gtkpeer_get_widget (env, obj);

  color.red = (red / 255.0) * 65535;

  color.green = (green / 255.0) * 65535;

  color.blue = (blue / 255.0) * 65535;

  button = gtk_bin_get_child (GTK_BIN (ptr));

  label = gtk_bin_get_child (GTK_BIN (button));

  gtk_widget_modify_fg (label, GTK_STATE_NORMAL, &color);

  gtk_widget_modify_fg (label, GTK_STATE_ACTIVE, &color);

  gtk_widget_modify_fg (label, GTK_STATE_PRELIGHT, &color);

  gdk_threads_leave ();

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkButtonPeer_gtkActivate

  (JNIEnv *env, jobject obj)

{

  GtkWidget *button;

  void *ptr;

  gdk_threads_enter ();

  ptr = gtkpeer_get_widget (env, obj);

  button = gtk_bin_get_child (GTK_BIN (ptr));

  gtk_widget_activate (GTK_WIDGET (button));

  gdk_threads_leave ();

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkButtonPeer_gtkWidgetRequestFocus

  (JNIEnv *env, jobject obj)

{

  void *ptr;

  GtkWidget *button;

  gdk_threads_enter ();

  ptr = gtkpeer_get_widget (env, obj);

  button = gtk_bin_get_child (GTK_BIN (ptr));

  gtk_widget_grab_focus (button);

  gdk_threads_leave ();

}

JNIEXPORT void JNICALL

Java_gnu_java_awt_peer_gtk_GtkButtonPeer_setNativeBounds

  (JNIEnv *env, jobject obj, jint x, jint y, jint width, jint height)

{

  GtkWidget *widget, *child;

  void *ptr;

  gdk_threads_enter ();

  ptr = gtkpeer_get_widget (env, obj);

  widget = GTK_WIDGET (ptr);

  /* We assume that -1 is a width or height and not a request for the

     widget's natural size. */

  width = width < 0 ? 0 : width;

  height = height < 0 ? 0 : height;

  child = gtk_bin_get_child (GTK_BIN (widget));

  if (!(width == 0 && height == 0))

    {

      /* Set the event box's size request... */

      gtk_widget_set_size_request (widget, width, height);

      /* ...and the button's size request... */

      gtk_widget_set_size_request (child, width, height);

      /* ...and the label's size request. */

      gtk_widget_set_size_request (gtk_bin_get_child (GTK_BIN (child)), width,

                                                      height);

      if (widget->parent != NULL && GTK_IS_FIXED (widget->parent))

        gtk_fixed_move (GTK_FIXED (widget->parent), widget, x, y);

    }

  gdk_threads_leave ();

}

static void

clicked_cb (GtkButton* button __attribute__((unused)),

            jobject peer)

{

  GdkEventButton* event;

  event = (GdkEventButton*) gtk_get_current_event ();

  g_assert (event);

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

                                       postActionEventID,

                                       cp_gtk_state_to_awt_mods (event->state));

  gdk_event_free ((GdkEvent*) event);

}