548 lines
14 KiB
C
548 lines
14 KiB
C
/* gtktextareapeer.c -- Native implementation of GtkTextAreaPeer
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Copyright (C) 1998, 1999, 2003 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_GtkTextAreaPeer.h"
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#define AWT_TEXTAREA_SCROLLBARS_BOTH 0
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#define AWT_TEXTAREA_SCROLLBARS_VERTICAL_ONLY 1
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#define AWT_TEXTAREA_SCROLLBARS_HORIZONTAL_ONLY 2
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static GtkWidget *textarea_get_widget (GtkWidget *widget);
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkTextAreaPeer_create
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(JNIEnv *env, jobject obj,
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jint textview_width, jint textview_height, jint scroll)
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{
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GtkWidget *text;
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GtkWidget *sw;
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GtkWidget *eventbox;
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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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text = gtk_text_view_new ();
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gtk_widget_set_size_request (text, textview_width, textview_height);
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gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW (text), TRUE);
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gtk_widget_show (text);
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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_container_add (GTK_CONTAINER (sw), text);
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gtk_container_add (GTK_CONTAINER (eventbox), sw);
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gtk_widget_show (sw);
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
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/* horizontal scrollbar */
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(scroll == AWT_TEXTAREA_SCROLLBARS_BOTH
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|| scroll == AWT_TEXTAREA_SCROLLBARS_HORIZONTAL_ONLY) ?
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GTK_POLICY_ALWAYS : GTK_POLICY_NEVER,
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/* vertical scrollbar */
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(scroll == AWT_TEXTAREA_SCROLLBARS_BOTH
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|| scroll == AWT_TEXTAREA_SCROLLBARS_VERTICAL_ONLY) ?
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GTK_POLICY_ALWAYS : GTK_POLICY_NEVER);
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gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text),
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(scroll == AWT_TEXTAREA_SCROLLBARS_BOTH
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|| scroll == AWT_TEXTAREA_SCROLLBARS_HORIZONTAL_ONLY)
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? GTK_WRAP_NONE : GTK_WRAP_WORD);
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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_GtkTextAreaPeer_connectSignals
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(JNIEnv *env, jobject obj)
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{
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GtkWidget *text = NULL;
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GtkTextBuffer *buf;
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void *ptr;
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jobject gref;
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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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/* Unwrap the text view from the scrolled window */
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text = textarea_get_widget (GTK_WIDGET (ptr));
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buf = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text));
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/* TextComponent signals */
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cp_gtk_textcomponent_connect_signals (G_OBJECT (buf), gref);
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/* Component signals */
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cp_gtk_component_connect_signals (G_OBJECT (text), 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_GtkTextAreaPeer_insert
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(JNIEnv *env, jobject obj, jstring contents, jint position)
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{
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GtkTextBuffer *buf;
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GtkTextIter iter;
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GtkWidget *text;
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void *ptr;
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const char *str;
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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, contents, NULL);
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text = textarea_get_widget (GTK_WIDGET (ptr));
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buf = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text));
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gtk_text_buffer_get_iter_at_offset (buf, &iter, position);
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gtk_text_buffer_insert (buf, &iter, str, strlen (str));
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(*env)->ReleaseStringUTFChars (env, contents, 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_GtkTextAreaPeer_replaceRange
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(JNIEnv *env, jobject obj, jstring contents, jint start, jint end)
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{
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GtkWidget *text;
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GtkTextBuffer *buf;
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GtkTextIter iter, startIter, endIter;
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void *ptr;
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const char *str;
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int mystart = start;
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int myend = end;
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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, contents, NULL);
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text = textarea_get_widget (GTK_WIDGET (ptr));
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buf = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text));
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gtk_text_buffer_get_iter_at_offset (buf, &startIter, mystart);
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gtk_text_buffer_get_iter_at_offset (buf, &endIter, myend);
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gtk_text_buffer_delete (buf, &startIter, &endIter);
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gtk_text_buffer_get_iter_at_offset (buf, &iter, mystart);
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gtk_text_buffer_insert(buf, &iter, str, strlen (str));
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(*env)->ReleaseStringUTFChars (env, contents, 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_GtkTextAreaPeer_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 *text;
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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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text = textarea_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 (text), 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_GtkTextAreaPeer_gtkWidgetRequestFocus
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(JNIEnv *env, jobject obj)
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{
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void *ptr;
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GtkWidget *text;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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text = textarea_get_widget (GTK_WIDGET (ptr));
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gtk_widget_grab_focus (text);
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gdk_threads_leave ();
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}
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JNIEXPORT jint JNICALL
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Java_gnu_java_awt_peer_gtk_GtkTextAreaPeer_getHScrollbarHeight
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(JNIEnv *env, jobject obj)
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{
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void *ptr;
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GtkWidget *bin;
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GtkScrolledWindow *sw;
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GtkRequisition requisition;
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jint height = 0;
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jint spacing = 0;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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bin = gtk_bin_get_child (GTK_BIN (ptr));
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sw = GTK_SCROLLED_WINDOW (bin);
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if (sw)
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{
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gtk_widget_size_request (sw->hscrollbar, &requisition);
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gtk_widget_style_get (GTK_WIDGET (sw), "scrollbar_spacing", &spacing, NULL);
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height = requisition.height + spacing;
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}
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gdk_threads_leave ();
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return height;
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}
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JNIEXPORT jint JNICALL
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Java_gnu_java_awt_peer_gtk_GtkTextAreaPeer_getVScrollbarWidth
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(JNIEnv *env, jobject obj)
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{
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void *ptr;
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GtkWidget *bin;
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GtkScrolledWindow *sw;
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GtkRequisition requisition;
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jint width = 0;
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jint spacing = 0;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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bin = gtk_bin_get_child (GTK_BIN (ptr));
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sw = GTK_SCROLLED_WINDOW (bin);
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if (sw)
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{
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gtk_widget_size_request (sw->vscrollbar, &requisition);
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gtk_widget_style_get (GTK_WIDGET (sw), "scrollbar_spacing", &spacing, NULL);
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width = requisition.width + spacing;
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}
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gdk_threads_leave ();
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return width;
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}
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JNIEXPORT jint JNICALL
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Java_gnu_java_awt_peer_gtk_GtkTextAreaPeer_getCaretPosition
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(JNIEnv *env, jobject obj)
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{
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void *ptr;
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int pos = 0;
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GtkWidget *text = NULL;
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GtkTextBuffer *buf;
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GtkTextMark *mark;
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GtkTextIter iter;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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text = textarea_get_widget (GTK_WIDGET (ptr));
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buf = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text));
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mark = gtk_text_buffer_get_insert (buf);
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gtk_text_buffer_get_iter_at_mark (buf, &iter, mark);
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pos = gtk_text_iter_get_offset (&iter);
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gdk_threads_leave ();
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return pos;
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}
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkTextAreaPeer_setCaretPosition
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(JNIEnv *env, jobject obj, jint pos)
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{
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void *ptr;
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GtkWidget *text = NULL;
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GtkTextBuffer *buf;
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GtkTextIter iter;
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GtkTextMark *oldmark;
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GtkTextIter olditer;
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int oldpos;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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text = textarea_get_widget (GTK_WIDGET (ptr));
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buf = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text));
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/* Save old position. */
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oldmark = gtk_text_buffer_get_insert (buf);
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gtk_text_buffer_get_iter_at_mark (buf, &olditer, oldmark);
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oldpos = gtk_text_iter_get_offset (&olditer);
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/* Move to new position. */
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gtk_text_buffer_get_iter_at_offset (buf, &iter, pos);
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gtk_text_buffer_place_cursor (buf, &iter);
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/* Scroll to new position. Alignment is determined
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comparing the new position to the old position. */
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if (oldpos > pos)
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gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (text),
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&iter, 0, TRUE, 0, 0);
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else if (oldpos < pos)
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gtk_text_view_scroll_to_iter (GTK_TEXT_VIEW (text),
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&iter, 0, TRUE, 1, 1);
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gdk_threads_leave ();
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}
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JNIEXPORT jint JNICALL
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Java_gnu_java_awt_peer_gtk_GtkTextAreaPeer_getSelectionStart
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(JNIEnv *env, jobject obj)
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{
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void *ptr;
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int pos = 0;
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GtkWidget *text = NULL;
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GtkTextBuffer *buf;
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GtkTextIter start;
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GtkTextIter end;
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GtkTextMark *mark;
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GtkTextIter iter;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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text = textarea_get_widget (GTK_WIDGET (ptr));
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buf = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text));
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if (gtk_text_buffer_get_selection_bounds (buf, &start, &end))
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{
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pos = gtk_text_iter_get_offset (&start);
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}
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else
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{
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mark = gtk_text_buffer_get_insert (buf);
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gtk_text_buffer_get_iter_at_mark (buf, &iter, mark);
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pos = gtk_text_iter_get_offset (&iter);
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}
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gdk_threads_leave ();
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return pos;
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}
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JNIEXPORT jint JNICALL
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Java_gnu_java_awt_peer_gtk_GtkTextAreaPeer_getSelectionEnd
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(JNIEnv *env, jobject obj)
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{
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void *ptr;
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int pos = 0;
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GtkWidget *text = NULL;
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GtkTextBuffer *buf;
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GtkTextIter start;
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GtkTextIter end;
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GtkTextMark *mark;
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GtkTextIter iter;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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text = textarea_get_widget (GTK_WIDGET (ptr));
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buf = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text));
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if (gtk_text_buffer_get_selection_bounds (buf, &start, &end))
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{
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pos = gtk_text_iter_get_offset (&end);
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}
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else
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{
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mark = gtk_text_buffer_get_insert (buf);
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gtk_text_buffer_get_iter_at_mark (buf, &iter, mark);
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pos = gtk_text_iter_get_offset (&iter);
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}
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gdk_threads_leave ();
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return pos;
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}
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkTextAreaPeer_select
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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 *text = NULL;
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GtkTextBuffer *buf;
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GtkTextIter iter;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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text = textarea_get_widget (GTK_WIDGET (ptr));
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buf = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text));
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gtk_text_buffer_get_iter_at_offset (buf, &iter, start);
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/* quickly move both 'insert' and 'selection_bound' to the
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same position */
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gtk_text_buffer_place_cursor (buf, &iter);
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gtk_text_buffer_get_iter_at_offset (buf, &iter, end);
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gtk_text_buffer_move_mark_by_name (buf, "selection_bound", &iter);
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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_GtkTextAreaPeer_setEditable
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(JNIEnv *env, jobject obj, jboolean state)
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{
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void *ptr;
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GtkWidget *text = NULL;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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text = textarea_get_widget (GTK_WIDGET (ptr));
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gtk_text_view_set_editable (GTK_TEXT_VIEW (text), state);
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gdk_threads_leave ();
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}
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JNIEXPORT jstring JNICALL
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Java_gnu_java_awt_peer_gtk_GtkTextAreaPeer_getText
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(JNIEnv *env, jobject obj)
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{
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void *ptr;
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char *contents = NULL;
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jstring jcontents;
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GtkWidget *text = NULL;
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GtkTextBuffer *buf;
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GtkTextIter start, end;
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gdk_threads_enter ();
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ptr = gtkpeer_get_widget (env, obj);
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text = textarea_get_widget (GTK_WIDGET (ptr));
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buf = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text));
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gtk_text_buffer_get_start_iter (buf, &start);
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gtk_text_buffer_get_end_iter (buf, &end);
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contents = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
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jcontents = (*env)->NewStringUTF (env, contents);
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g_free (contents);
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gdk_threads_leave ();
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return jcontents;
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}
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JNIEXPORT void JNICALL
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Java_gnu_java_awt_peer_gtk_GtkTextAreaPeer_setText
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(JNIEnv *env, jobject obj, jstring contents)
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{
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void *ptr;
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const char *str;
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GtkWidget *text = NULL;
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GtkTextBuffer *buf;
|
|
|
|
gdk_threads_enter ();
|
|
|
|
ptr = gtkpeer_get_widget (env, obj);
|
|
str = (*env)->GetStringUTFChars (env, contents, NULL);
|
|
|
|
text = textarea_get_widget (GTK_WIDGET (ptr));
|
|
|
|
buf = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text));
|
|
gtk_text_buffer_set_text (buf, str, strlen (str));
|
|
|
|
(*env)->ReleaseStringUTFChars (env, contents, str);
|
|
|
|
gdk_threads_leave ();
|
|
}
|
|
|
|
static GtkWidget *
|
|
textarea_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;
|
|
}
|