550 lines
15 KiB
C
550 lines
15 KiB
C
/* GtkListPeer.c -- implements GtkListPeer's native methods
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Copyright (C) 1998, 1999, 2003, 2004 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_GtkListPeer.h"
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static jmethodID postListItemEventID;
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static GtkWidget *list_get_widget (GtkWidget *widget);
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void
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cp_gtk_list_init_jni (void)
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{
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jclass gtklistpeer;
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gtklistpeer = (*cp_gtk_gdk_env())->FindClass (cp_gtk_gdk_env(),
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"gnu/java/awt/peer/gtk/GtkListPeer");
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postListItemEventID = (*cp_gtk_gdk_env())->GetMethodID (cp_gtk_gdk_env(), gtklistpeer,
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"postItemEvent",
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"(II)V");
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}
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enum
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{
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COLUMN_STRING,
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N_COLUMNS
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};
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static gboolean item_highlighted_cb (GtkTreeSelection *selection,
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GtkTreeModel *model,
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GtkTreePath *path,
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gboolean path_currently_selected,
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jobject peer);
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkListPeer_create
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(JNIEnv *env, jobject obj, jint rows)
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{
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GtkWidget *sw;
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GtkWidget *list;
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GtkWidget *eventbox;
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GtkCellRenderer *renderer;
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GtkTreeViewColumn *column;
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GtkListStore *list_store;
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GtkTreeIter iter;
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GtkRequisition req;
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gint i;
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gdk_threads_enter ();
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/* Create global reference and save it for future use */
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gtkpeer_set_global_ref (env, obj);
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list_store = gtk_list_store_new (N_COLUMNS, G_TYPE_STRING);
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/* Add the number of rows so that we can calculate the tree view's
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size request. */
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for (i = 0; i < rows; i++)
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{
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gtk_list_store_append (list_store, &iter);
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gtk_list_store_set (list_store, &iter,
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COLUMN_STRING, "",
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-1);
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}
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list = gtk_tree_view_new_with_model (GTK_TREE_MODEL (list_store));
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renderer = gtk_cell_renderer_text_new ();
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column = gtk_tree_view_column_new_with_attributes (NULL,
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renderer,
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"text",
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COLUMN_STRING,
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NULL);
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eventbox = gtk_event_box_new ();
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sw = gtk_scrolled_window_new (NULL, NULL);
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
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GTK_POLICY_AUTOMATIC,
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GTK_POLICY_AUTOMATIC);
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gtk_container_add (GTK_CONTAINER (eventbox), sw);
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gtk_tree_view_append_column (GTK_TREE_VIEW (list), column);
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gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (list), FALSE);
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gtk_widget_size_request (GTK_WIDGET (list), &req);
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gtk_widget_set_size_request (GTK_WIDGET (list), req.width, req.height);
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gtk_container_add (GTK_CONTAINER (sw), list);
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/* Remove the blank rows. */
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gtk_list_store_clear (list_store);
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gtk_widget_show (list);
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gtk_widget_show (sw);
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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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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkListPeer_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 *list;
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GtkTreeSelection *selection;
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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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list = list_get_widget (GTK_WIDGET (ptr));
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selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (list));
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gtk_tree_selection_set_select_function (selection, item_highlighted_cb,
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gref, NULL);
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cp_gtk_component_connect_signals (G_OBJECT (list), 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_GtkListPeer_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 *list;
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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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list = list_get_widget (GTK_WIDGET (ptr));
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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 (list), 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_GtkListPeer_gtkWidgetRequestFocus
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(JNIEnv *env, jobject obj)
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{
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void *ptr;
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GtkWidget *list;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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list = list_get_widget (GTK_WIDGET (ptr));
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gtk_widget_grab_focus (list);
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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_GtkListPeer_append
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(JNIEnv *env, jobject obj, jobjectArray items)
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{
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void *ptr;
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GtkWidget *list;
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GtkTreeIter iter;
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GtkTreeModel *list_store;
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jint count;
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jint i;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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count = (*env)->GetArrayLength (env, items);
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list = list_get_widget (GTK_WIDGET (ptr));
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list_store = gtk_tree_view_get_model (GTK_TREE_VIEW (list));
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for (i = 0; i < count; i++)
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{
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const char *text;
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jobject item;
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item = (*env)->GetObjectArrayElement (env, items, i);
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text = (*env)->GetStringUTFChars (env, item, NULL);
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gtk_list_store_append (GTK_LIST_STORE (list_store), &iter);
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gtk_list_store_set (GTK_LIST_STORE (list_store), &iter,
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COLUMN_STRING, text,
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-1);
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(*env)->ReleaseStringUTFChars (env, item, text);
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(*env)->DeleteLocalRef(env, item);
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}
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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_GtkListPeer_add
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(JNIEnv *env, jobject obj, jstring text, jint index)
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{
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void *ptr;
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const char *str;
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GtkWidget *list;
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GtkTreeIter iter;
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GtkTreeModel *list_store;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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str = (*env)->GetStringUTFChars (env, text, NULL);
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list = list_get_widget (GTK_WIDGET (ptr));
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list_store = gtk_tree_view_get_model (GTK_TREE_VIEW (list));
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if (index == -1)
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gtk_list_store_append (GTK_LIST_STORE (list_store), &iter);
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else
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gtk_list_store_insert (GTK_LIST_STORE (list_store), &iter, index);
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gtk_list_store_set (GTK_LIST_STORE (list_store), &iter,
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COLUMN_STRING, str, -1);
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(*env)->ReleaseStringUTFChars (env, text, str);
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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_GtkListPeer_delItems
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(JNIEnv *env, jobject obj, jint start, jint end)
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{
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void *ptr;
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GtkWidget *list;
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GtkTreeIter iter;
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GtkTreeModel *list_store;
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jint i;
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jint num_items;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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list = list_get_widget (GTK_WIDGET (ptr));
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list_store = gtk_tree_view_get_model (GTK_TREE_VIEW (list));
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/* Special case: remove all rows. */
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if (end == -1)
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gtk_list_store_clear (GTK_LIST_STORE (list_store));
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else
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{
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i = 0;
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num_items = end - start + 1;
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gtk_tree_model_iter_nth_child (list_store, &iter, NULL, start);
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while (i < num_items)
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{
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gtk_list_store_remove (GTK_LIST_STORE (list_store), &iter);
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i++;
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}
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}
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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_GtkListPeer_select
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(JNIEnv *env, jobject obj, jint index)
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{
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void *ptr;
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GtkWidget *list;
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GtkTreePath *path;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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list = list_get_widget (GTK_WIDGET (ptr));
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path = gtk_tree_path_new_from_indices (index, -1);
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gtk_tree_view_set_cursor (GTK_TREE_VIEW (list), path, NULL, FALSE);
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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_GtkListPeer_deselect
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(JNIEnv *env, jobject obj, jint index)
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{
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void *ptr;
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GtkWidget *list;
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GtkTreeSelection *selection;
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GtkTreePath *path;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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list = list_get_widget (GTK_WIDGET (ptr));
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selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (list));
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path = gtk_tree_path_new_from_indices (index, -1);
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gtk_tree_selection_unselect_path (selection, path);
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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_GtkListPeer_getSize
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(JNIEnv *env, jobject obj, jint rows, jint visible_rows, jintArray jdims)
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{
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void *ptr;
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jint *dims;
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GtkRequisition current_req;
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GtkRequisition natural_req;
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GtkWidget* bin;
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gdk_threads_enter ();
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dims = (*env)->GetIntArrayElements (env, jdims, NULL);
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dims[0] = dims[1] = 0;
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ptr = gtkpeer_get_widget (env, obj);
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bin = list_get_widget (GTK_WIDGET (ptr));
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/* Save the widget's current size request. */
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gtk_widget_size_request (bin, ¤t_req);
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/* Get the widget's "natural" size request. */
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gtk_widget_set_size_request (GTK_WIDGET (ptr), -1, -1);
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gtk_widget_size_request (bin, &natural_req);
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/* Reset the widget's size request. */
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gtk_widget_set_size_request (bin,
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current_req.width, current_req.height);
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dims[0] = natural_req.width;
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/* Calculate the final height, by comparing the number of rows
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in the list to the number of rows requested by the caller.
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FIXME: Is there a GTK method that counts the number of rows
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in the list? If so, we don't need to bring visible_rows from
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the Java peer. */
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if (rows == visible_rows)
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dims[1] = natural_req.height;
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else
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dims[1] = natural_req.height / visible_rows * rows;
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(*env)->ReleaseIntArrayElements (env, jdims, dims, 0);
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gdk_threads_leave ();
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}
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JNIEXPORT jintArray JNICALL
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Java_gnu_java_awt_peer_gtk_GtkListPeer_getSelectedIndexes
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(JNIEnv *env, jobject obj)
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{
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void *ptr;
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GtkWidget *list;
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GtkTreeSelection *selection;
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jintArray result_array;
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jint *result_array_iter;
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GList *current_row;
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GList *rows;
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gint *indices;
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jint count;
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jint i;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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list = list_get_widget (GTK_WIDGET (ptr));
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selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (list));
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count = gtk_tree_selection_count_selected_rows (selection);
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if (count > 0)
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{
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current_row = rows = gtk_tree_selection_get_selected_rows (selection, NULL);
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result_array = (*env)->NewIntArray (env, count);
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result_array_iter = (*env)->GetIntArrayElements (env, result_array, NULL);
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for (i = 0; i < count; i++)
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{
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indices = gtk_tree_path_get_indices (current_row->data);
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result_array_iter[i] = indices ? indices[0] : -1;
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current_row = g_list_next (current_row);
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}
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if (rows)
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{
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g_list_foreach (rows, (GFunc) gtk_tree_path_free, NULL);
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g_list_free (rows);
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}
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(*env)->ReleaseIntArrayElements (env, result_array, result_array_iter, 0);
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}
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else
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result_array = NULL;
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gdk_threads_leave ();
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return result_array;
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}
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkListPeer_makeVisible
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(JNIEnv *env, jobject obj, jint index)
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{
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void *ptr;
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GtkWidget *list;
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GtkTreePath *path;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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list = list_get_widget (GTK_WIDGET (ptr));
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path = gtk_tree_path_new_from_indices (index, -1);
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gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (list), path,
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NULL, FALSE, 0.0, 0.0);
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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_GtkListPeer_setMultipleMode
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(JNIEnv *env, jobject obj, jboolean mode)
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{
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void *ptr;
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GtkWidget *list;
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GtkTreeSelection *selection;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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list = list_get_widget (GTK_WIDGET (ptr));
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selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (list));
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gtk_tree_selection_set_mode (selection,
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mode ? GTK_SELECTION_MULTIPLE
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: GTK_SELECTION_SINGLE);
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gdk_threads_leave ();
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}
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static gboolean
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item_highlighted_cb (GtkTreeSelection *selection __attribute__((unused)),
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GtkTreeModel *model,
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GtkTreePath *path,
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gboolean path_currently_selected,
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jobject peer)
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{
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GtkTreeIter iter;
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jint row;
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gint *indices;
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if (gtk_tree_model_get_iter (model, &iter, path))
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{
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indices = gtk_tree_path_get_indices (path);
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row = indices ? indices[0] : -1;
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if (!path_currently_selected)
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{
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(*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), peer,
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postListItemEventID,
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row,
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(jint) AWT_ITEM_SELECTED);
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}
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else
|
|
{
|
|
(*cp_gtk_gdk_env())->CallVoidMethod (cp_gtk_gdk_env(), peer,
|
|
postListItemEventID,
|
|
row,
|
|
(jint) AWT_ITEM_DESELECTED);
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GtkWidget *
|
|
list_get_widget (GtkWidget *widget)
|
|
{
|
|
GtkWidget *wid;
|
|
g_assert (GTK_IS_EVENT_BOX (widget));
|
|
|
|
wid = gtk_bin_get_child (GTK_BIN (widget));
|
|
g_assert (GTK_IS_SCROLLED_WINDOW (wid));
|
|
|
|
wid = gtk_bin_get_child (GTK_BIN (wid));
|
|
|
|
return wid;
|
|
}
|
|
|