libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkTextAreaPeer.c

   1 /* gtktextareapeer.c -- Native implementation of GtkTextAreaPeer
   2    Copyright (C) 1998, 1999, 2003 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19 02111-1307 USA.
  20
  21 Linking this library statically or dynamically with other modules is
  22 making a combined work based on this library.  Thus, the terms and
  23 conditions of the GNU General Public License cover the whole
  24 combination.
  25
  26 As a special exception, the copyright holders of this library give you
  27 permission to link this library with independent modules to produce an
  28 executable, regardless of the license terms of these independent
  29 modules, and to copy and distribute the resulting executable under
  30 terms of your choice, provided that you also meet, for each linked
  31 independent module, the terms and conditions of the license of that
  32 module.  An independent module is a module which is not derived from
  33 or based on this library.  If you modify this library, you may extend
  34 this exception to your version of the library, but you are not
  35 obligated to do so.  If you do not wish to do so, delete this
  36 exception statement from your version. */
  37
  38
  39 #include "gtkpeer.h"
  40 #include "gnu_java_awt_peer_gtk_GtkTextAreaPeer.h"
  41
  42 #define TEXT_FROM_SW(obj) (GTK_TEXT_VIEW(GTK_SCROLLED_WINDOW (obj)->container.child))
  43 JNIEXPORT void JNICALL
  44 Java_gnu_java_awt_peer_gtk_GtkTextAreaPeer_create
  45   (JNIEnv *env, jobject obj, jint scroll)
  46 {
  47   GtkWidget *text, *sw;
  48
  49   /* Create global reference and save it for future use */
  50   NSA_SET_GLOBAL_REF (env, obj);
  51
  52   gdk_threads_enter ();
  53
  54   text = gtk_text_view_new ();
  55   gtk_widget_show (text);
  56
  57   sw = gtk_scrolled_window_new (NULL, NULL);
  58   gtk_container_add (GTK_CONTAINER (sw), text);
  59
  60   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
  61      /* horizontal scrollbar */
  62      (scroll == AWT_TEXTAREA_SCROLLBARS_BOTH
  63       || scroll == AWT_TEXTAREA_SCROLLBARS_HORIZONTAL_ONLY) ?
  64        GTK_POLICY_ALWAYS : GTK_POLICY_NEVER,
  65      /* vertical scrollbar */
  66      (scroll == AWT_TEXTAREA_SCROLLBARS_BOTH
  67       || scroll == AWT_TEXTAREA_SCROLLBARS_VERTICAL_ONLY) ?
  68        GTK_POLICY_ALWAYS : GTK_POLICY_NEVER);
  69
  70   gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text),
  71                                (scroll == AWT_TEXTAREA_SCROLLBARS_BOTH
  72                                 || scroll == AWT_TEXTAREA_SCROLLBARS_HORIZONTAL_ONLY)
  73                                ? GTK_WRAP_NONE : GTK_WRAP_WORD);
  74
  75   gdk_threads_leave ();
  76
  77   NSA_SET_PTR (env, obj, sw);
  78 }
  79
  80 JNIEXPORT void JNICALL
  81 Java_gnu_java_awt_peer_gtk_GtkTextAreaPeer_gtkTextGetSize
  82   (JNIEnv *env, jobject obj, jintArray jdims)
  83 {
  84   void *ptr;
  85   jint *dims;
  86   GtkWidget *text;
  87   GtkRequisition requisition;
  88
  89   ptr = NSA_GET_PTR (env, obj);
  90
  91   dims = (*env)->GetIntArrayElements (env, jdims, 0);
  92   dims[0] = dims[1] = 0;
  93
  94   gdk_threads_enter ();
  95
  96   text = GTK_WIDGET (TEXT_FROM_SW (ptr));
  97
  98   gtk_widget_size_request(GTK_WIDGET (text), &requisition);
  99   dims[0] = requisition.width;
 100   dims[1] = requisition.height;
 101
 102   gdk_threads_leave ();
 103
 104   (*env)->ReleaseIntArrayElements (env, jdims, dims, 0);
 105 }
 106
 107
 108 JNIEXPORT void JNICALL
 109 Java_gnu_java_awt_peer_gtk_GtkTextAreaPeer_insert
 110   (JNIEnv *env, jobject obj, jstring contents, jint position)
 111 {
 112   GtkTextBuffer *buf;
 113   GtkTextIter iter;
 114   GtkWidget *text;
 115   void *ptr;
 116   const char *str;
 117   int pos=position;
 118
 119   ptr = NSA_GET_PTR (env, obj);
 120   str = (*env)->GetStringUTFChars (env, contents, NULL);
 121
 122   gdk_threads_enter ();
 123
 124   text = GTK_WIDGET (TEXT_FROM_SW (ptr));
 125
 126   buf = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text));
 127   gtk_text_buffer_get_iter_at_offset (buf, &iter, pos);
 128   gtk_text_buffer_insert (buf, &iter, str, strlen (str));
 129
 130   gdk_threads_leave ();
 131
 132   (*env)->ReleaseStringUTFChars (env, contents, str);
 133 }
 134
 135 JNIEXPORT void JNICALL
 136 Java_gnu_java_awt_peer_gtk_GtkTextAreaPeer_replaceRange
 137   (JNIEnv *env, jobject obj, jstring contents, jint start, jint end)
 138 {
 139   GtkWidget *text;
 140   GtkTextBuffer *buf;
 141   GtkTextIter iter, startIter, endIter;
 142   void *ptr;
 143   const char *str;
 144   int mystart = start;
 145   int myend = end;
 146
 147   ptr = NSA_GET_PTR (env, obj);
 148   str = (*env)->GetStringUTFChars (env, contents, NULL);
 149
 150   gdk_threads_enter ();
 151
 152   text = GTK_WIDGET (TEXT_FROM_SW (ptr));
 153
 154   buf = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text));
 155
 156   gtk_text_buffer_get_iter_at_offset (buf, &startIter, mystart);
 157   gtk_text_buffer_get_iter_at_offset (buf, &endIter, myend);
 158   gtk_text_buffer_delete (buf, &startIter, &endIter);
 159
 160   gtk_text_buffer_get_iter_at_offset (buf, &iter, mystart);
 161   gtk_text_buffer_insert(buf, &iter, str, strlen (str));
 162
 163   gdk_threads_leave ();
 164   (*env)->ReleaseStringUTFChars (env, contents, str);
 165 }
 166
 167 JNIEXPORT void JNICALL
 168 Java_gnu_java_awt_peer_gtk_GtkTextAreaPeer_gtkSetFont
 169   (JNIEnv *env, jobject obj, jstring name, jint style, jint size)
 170 {
 171   const char *font_name;
 172   void *ptr;
 173   GtkWidget *text;
 174   PangoFontDescription *font_desc;
 175
 176   ptr = NSA_GET_PTR (env, obj);
 177
 178   text = GTK_WIDGET (TEXT_FROM_SW (ptr));
 179
 180   font_name = (*env)->GetStringUTFChars (env, name, NULL);
 181
 182   gdk_threads_enter();
 183
 184   font_desc = pango_font_description_from_string (font_name);
 185   pango_font_description_set_size (font_desc, size * PANGO_SCALE);
 186
 187   if (style & AWT_STYLE_BOLD)
 188     pango_font_description_set_weight (font_desc, PANGO_WEIGHT_BOLD);
 189
 190   if (style & AWT_STYLE_ITALIC)
 191     pango_font_description_set_style (font_desc, PANGO_STYLE_OBLIQUE);
 192
 193   gtk_widget_modify_font (GTK_WIDGET(text), font_desc);
 194
 195   pango_font_description_free (font_desc);
 196
 197   gdk_threads_leave();
 198
 199   (*env)->ReleaseStringUTFChars (env, name, font_name);
 200 }