408 lines
13 KiB
C
408 lines
13 KiB
C
/* gtkcheckboxpeer.c -- Native implementation of GtkCheckboxPeer
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Copyright (C) 1998, 1999, 2002, 2003, 2004, 2006
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Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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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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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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#include "gtkpeer.h"
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#include "gnu_java_awt_peer_gtk_GtkCheckboxPeer.h"
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#include "gnu_java_awt_peer_gtk_GtkComponentPeer.h"
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#include "jcl.h"
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static jmethodID postItemEventID;
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static jmethodID addToGroupMapID;
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static GtkWidget *checkbox_get_widget (GtkWidget *widget);
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static void item_toggled_cb (GtkToggleButton *item, jobject peer);
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void
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cp_gtk_checkbox_init_jni (void)
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{
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jclass gtkcheckboxpeer;
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gtkcheckboxpeer = (*cp_gtk_gdk_env())->FindClass (cp_gtk_gdk_env(),
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"gnu/java/awt/peer/gtk/GtkCheckboxPeer");
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postItemEventID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(), gtkcheckboxpeer,
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"postItemEvent",
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"(Ljava/lang/Object;Z)V");
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addToGroupMapID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(), gtkcheckboxpeer,
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"addToGroupMap",
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"(J)V");
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}
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_connectSignals
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(JNIEnv *env, jobject obj)
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{
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void *ptr;
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jobject gref;
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GtkWidget *bin;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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gref = gtkpeer_get_global_ref (env, obj);
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bin = checkbox_get_widget (GTK_WIDGET (ptr));
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/* Checkbox signals */
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g_signal_connect (G_OBJECT (bin), "toggled",
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G_CALLBACK (item_toggled_cb), gref);
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/* Component signals */
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cp_gtk_component_connect_signals (G_OBJECT (bin), gref);
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gdk_threads_leave ();
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}
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_gtkToggleButtonSetActive
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(JNIEnv *env, jobject obj, jboolean is_active)
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{
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void *ptr;
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GtkWidget *bin;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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bin = checkbox_get_widget (GTK_WIDGET (ptr));
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (bin), is_active);
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gdk_threads_leave ();
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}
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_gtkWidgetModifyFont
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(JNIEnv *env, jobject obj, jstring name, jint style, jint size)
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{
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const char *font_name;
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void *ptr;
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GtkWidget *button;
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GtkWidget *label;
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PangoFontDescription *font_desc;
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gdk_threads_enter();
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ptr = gtkpeer_get_widget (env, obj);
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button = checkbox_get_widget (GTK_WIDGET (ptr));
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label = gtk_bin_get_child (GTK_BIN(button));
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if (!label)
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return;
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font_name = (*env)->GetStringUTFChars (env, name, NULL);
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font_desc = pango_font_description_from_string (font_name);
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pango_font_description_set_size (font_desc,
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size * cp_gtk_dpi_conversion_factor);
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if (style & AWT_STYLE_BOLD)
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pango_font_description_set_weight (font_desc, PANGO_WEIGHT_BOLD);
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if (style & AWT_STYLE_ITALIC)
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pango_font_description_set_style (font_desc, PANGO_STYLE_OBLIQUE);
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gtk_widget_modify_font (GTK_WIDGET(label), font_desc);
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pango_font_description_free (font_desc);
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(*env)->ReleaseStringUTFChars (env, name, font_name);
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gdk_threads_leave();
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}
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_gtkButtonSetLabel
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(JNIEnv *env, jobject obj, jstring label)
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{
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const char *c_label;
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GtkWidget *label_widget;
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void *ptr;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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c_label = (*env)->GetStringUTFChars (env, label, NULL);
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label_widget = gtk_bin_get_child (GTK_BIN (checkbox_get_widget (GTK_WIDGET (ptr))));
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gtk_label_set_text (GTK_LABEL (label_widget), c_label);
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(*env)->ReleaseStringUTFChars (env, label, c_label);
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gdk_threads_leave ();
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}
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/* A check button is created if we are not part of
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a group.
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This function is called when initially creating the
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button, so an eventbox is created.
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*/
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_createCheckButton
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(JNIEnv *env, jobject obj)
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{
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GtkWidget *button;
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GtkWidget *eventbox;
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gdk_threads_enter ();
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gtkpeer_set_global_ref (env, obj);
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eventbox = gtk_event_box_new ();
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button = gtk_check_button_new_with_label ("");
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gtk_container_add (GTK_CONTAINER (eventbox), button);
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gtk_widget_show (button);
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gtkpeer_set_widget (env, obj, eventbox);
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gdk_threads_leave ();
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}
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/* A radio button is created if we are part of a group.
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groupPointer points to the corresponding group. If 0,
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a new group is created.
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This function is called when initially creating the
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button, so an eventbox is created.
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*/
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_createRadioButton
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(JNIEnv *env, jobject obj, jlong groupPointer)
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{
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GtkWidget *button;
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GtkWidget *eventbox;
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GSList *native_group = NULL;
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gdk_threads_enter ();
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gtkpeer_set_global_ref (env, obj);
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eventbox = gtk_event_box_new ();
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if (groupPointer != 0)
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{
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native_group = JLONG_TO_PTR (GSList, groupPointer);
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g_assert (GTK_IS_RADIO_BUTTON (native_group->data));
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}
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button = gtk_radio_button_new_with_label (native_group, "");
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if (native_group == NULL)
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native_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
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if (g_slist_index (native_group, GTK_RADIO_BUTTON (button)) == -1)
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{
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native_group = g_slist_prepend (native_group, GTK_RADIO_BUTTON (button));
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GTK_RADIO_BUTTON(button)->group = native_group;
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}
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gtk_container_add (GTK_CONTAINER (eventbox), button);
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gtk_widget_show (button);
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gtkpeer_set_widget (env, obj, eventbox);
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(*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), obj,
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addToGroupMapID,
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PTR_TO_JLONG (native_group));
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gdk_threads_leave ();
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}
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/* Add the object to the group pointed to by groupPointer.
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If groupPointer is 0, create a new group and create
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a radio button. Otherwise, creating a radio button in an
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existing group.
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*/
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_addToGroup
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(JNIEnv *env, jobject obj, jlong groupPointer)
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{
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void *ptr;
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GtkWidget *container;
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GtkWidget *check_button;
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GtkWidget *radio_button;
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const gchar *label;
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GSList *native_group = NULL;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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container = GTK_WIDGET (ptr);
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check_button = checkbox_get_widget (container);
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label = gtk_label_get_text (GTK_LABEL (gtk_bin_get_child
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(GTK_BIN (check_button))));
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/* Need to remove the check_button, and replace it with
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a radio button in a group.
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*/
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if (groupPointer != 0)
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{
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native_group = JLONG_TO_PTR (GSList, groupPointer);
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g_assert (GTK_IS_RADIO_BUTTON (native_group->data));
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}
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radio_button = gtk_radio_button_new_with_label (native_group, label);
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (radio_button),
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gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (check_button)));
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if (native_group == NULL)
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native_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (radio_button));
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if (g_slist_index (native_group, GTK_RADIO_BUTTON (radio_button)) == -1)
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{
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native_group = g_slist_prepend (native_group, GTK_RADIO_BUTTON (radio_button));
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GTK_RADIO_BUTTON(radio_button)->group = native_group;
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}
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gtk_container_remove (GTK_CONTAINER (container), check_button);
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gtk_container_add (GTK_CONTAINER (container), radio_button);
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gtk_widget_show (radio_button);
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(*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), obj,
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addToGroupMapID,
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PTR_TO_JLONG (native_group));
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gdk_threads_leave ();
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}
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/* Remove the object from the group pointed to by groupPointer.
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We are removing the radio button and creating a check button.
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*/
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_removeFromGroup
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(JNIEnv *env, jobject obj)
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{
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void *ptr;
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GtkWidget *container;
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GtkWidget *check_button;
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GtkWidget *radio_button;
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GSList *native_group;
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const gchar *label;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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container = GTK_WIDGET (ptr);
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radio_button = checkbox_get_widget (container);
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label = gtk_label_get_text (GTK_LABEL (gtk_bin_get_child
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(GTK_BIN (radio_button))));
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/* Need to remove the radio_button, and replace it with
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a check button.
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*/
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check_button = gtk_check_button_new_with_label (label);
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check_button),
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gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (radio_button)));
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native_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (radio_button));
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native_group = g_slist_remove (native_group, GTK_RADIO_BUTTON (radio_button));
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if (native_group && ! GTK_IS_RADIO_BUTTON (native_group->data))
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native_group = NULL;
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GTK_RADIO_BUTTON(radio_button)->group = NULL;
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gtk_container_remove (GTK_CONTAINER (container), radio_button);
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gtk_container_add (GTK_CONTAINER (container), check_button);
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gtk_widget_show (check_button);
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(*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), obj,
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addToGroupMapID,
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PTR_TO_JLONG (native_group));
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gdk_threads_leave ();
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}
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/* Move the radio button to a new group. If groupPointer is
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0, create a new group.
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*/
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkCheckboxPeer_switchToGroup
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(JNIEnv *env, jobject obj, jlong groupPointer)
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{
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void *ptr;
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GtkWidget *radio_button;
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GSList *native_group = NULL;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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radio_button = checkbox_get_widget (GTK_WIDGET (ptr));
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native_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (radio_button));
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native_group = g_slist_remove (native_group, GTK_RADIO_BUTTON (radio_button));
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GTK_RADIO_BUTTON(radio_button)->group = NULL;
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if (groupPointer != 0)
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{
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native_group = JLONG_TO_PTR (GSList, groupPointer);
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g_assert (GTK_IS_RADIO_BUTTON (native_group->data));
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}
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gtk_radio_button_set_group (GTK_RADIO_BUTTON (radio_button), native_group);
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native_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (radio_button));
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if (g_slist_index (native_group, GTK_RADIO_BUTTON (radio_button)) == -1)
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{
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native_group = g_slist_prepend (native_group, GTK_RADIO_BUTTON (radio_button));
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GTK_RADIO_BUTTON(radio_button)->group = native_group;
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}
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(*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), obj,
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addToGroupMapID,
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PTR_TO_JLONG (native_group));
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gdk_threads_leave ();
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}
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static void
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item_toggled_cb (GtkToggleButton *item, jobject peer)
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{
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(*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), peer,
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postItemEventID,
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peer,
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item->active);
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}
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static GtkWidget *
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checkbox_get_widget (GtkWidget *widget)
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{
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GtkWidget *wid;
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g_assert (GTK_IS_EVENT_BOX (widget));
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wid = gtk_bin_get_child (GTK_BIN(widget));
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return wid;
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}
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