libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkScrollPanePeer.c

   1 /* gtkscrollpanepeer.c -- Native implementation of GtkScrollPanePeer
   2    Copyright (C) 1998, 1999, 2002 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_GtkScrollPanePeer.h"
  41
  42 JNIEXPORT void JNICALL
  43 Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_create
  44   (JNIEnv *env, jobject obj, int width, int height)
  45 {
  46   GtkWidget *sw;
  47
  48   /* Create global reference and save it for future use */
  49   NSA_SET_GLOBAL_REF (env, obj);
  50
  51   gdk_threads_enter ();
  52
  53   sw = gtk_scrolled_window_new (NULL, NULL);
  54
  55   gtk_widget_set_size_request (sw, width, height);
  56
  57   gdk_threads_leave ();
  58
  59   NSA_SET_PTR (env, obj, sw);
  60 }
  61
  62 JNIEXPORT void JNICALL
  63 Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_setScrollPosition
  64   (JNIEnv *env, jobject obj, jint x, jint y)
  65 {
  66   GtkAdjustment *hadj, *vadj;
  67   GtkScrolledWindow *sw;
  68   void *ptr;
  69
  70   ptr = NSA_GET_PTR (env, obj);
  71
  72   gdk_threads_enter ();
  73   sw = GTK_SCROLLED_WINDOW (ptr);
  74
  75   hadj = gtk_scrolled_window_get_hadjustment (sw);
  76   vadj = gtk_scrolled_window_get_vadjustment (sw);
  77
  78   gtk_adjustment_set_value (hadj, x);
  79   gtk_adjustment_set_value (vadj, y);
  80   gdk_threads_leave ();
  81 }
  82
  83 JNIEXPORT void JNICALL
  84 Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_gtkScrolledWindowSetHScrollIncrement
  85   (JNIEnv *env, jobject obj, jint u)
  86 {
  87   GtkAdjustment *hadj;
  88   GtkScrolledWindow *sw;
  89   void *ptr;
  90
  91   ptr = NSA_GET_PTR (env, obj);
  92
  93   gdk_threads_enter ();
  94   sw = GTK_SCROLLED_WINDOW(ptr);
  95
  96   hadj = gtk_scrolled_window_get_hadjustment (sw);
  97   hadj->step_increment = u;
  98
  99   gdk_threads_leave ();
 100 }
 101
 102 JNIEXPORT void JNICALL
 103 Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_gtkScrolledWindowSetVScrollIncrement
 104   (JNIEnv *env, jobject obj, jint u)
 105 {
 106   GtkAdjustment *vadj;
 107   GtkScrolledWindow *sw;
 108   void *ptr;
 109
 110   ptr = NSA_GET_PTR (env, obj);
 111
 112   gdk_threads_enter ();
 113   sw = GTK_SCROLLED_WINDOW(ptr);
 114
 115   vadj = gtk_scrolled_window_get_hadjustment (sw);
 116   vadj->step_increment = u;
 117
 118   gdk_threads_leave ();
 119 }
 120
 121 JNIEXPORT jint JNICALL
 122 Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_getHScrollbarHeight
 123   (JNIEnv *env, jobject obj)
 124 {
 125   void *ptr;
 126   GtkScrolledWindow *sw;
 127   GtkRequisition requisition;
 128   jint height = 0;
 129   jint spacing = 0;
 130
 131   ptr = NSA_GET_PTR (env, obj);
 132
 133   gdk_threads_enter ();
 134   sw = GTK_SCROLLED_WINDOW (ptr);
 135
 136   gtk_widget_size_request (sw->hscrollbar, &requisition);
 137   gtk_widget_style_get (GTK_WIDGET (sw), "scrollbar_spacing", &spacing, NULL);
 138   height = requisition.height + spacing;
 139
 140   gdk_threads_leave ();
 141
 142   return height;
 143 }
 144
 145 JNIEXPORT jint JNICALL
 146 Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_getVScrollbarWidth
 147   (JNIEnv *env, jobject obj)
 148 {
 149   void *ptr;
 150   GtkScrolledWindow *sw;
 151   GtkRequisition requisition;
 152   jint width = 0;
 153   jint spacing = 0;
 154
 155   ptr = NSA_GET_PTR (env, obj);
 156
 157   gdk_threads_enter ();
 158   sw = GTK_SCROLLED_WINDOW (ptr);
 159
 160   gtk_widget_size_request (sw->vscrollbar, &requisition);
 161   gtk_widget_style_get (GTK_WIDGET (sw), "scrollbar_spacing", &spacing, NULL);
 162   width = requisition.width + spacing;
 163
 164   gdk_threads_leave ();
 165
 166   return width;
 167 }
 168
 169 JNIEXPORT void JNICALL
 170 Java_gnu_java_awt_peer_gtk_GtkScrollPanePeer_setPolicy
 171   (JNIEnv *env, jobject obj, jint policy)
 172 {
 173   void *ptr;
 174
 175   ptr = NSA_GET_PTR (env, obj);
 176
 177   switch (policy)
 178     {
 179     case AWT_SCROLLPANE_SCROLLBARS_AS_NEEDED:
 180       policy = GTK_POLICY_AUTOMATIC;
 181       break;
 182     case AWT_SCROLLPANE_SCROLLBARS_ALWAYS:
 183       policy = GTK_POLICY_ALWAYS;
 184       break;
 185     case AWT_SCROLLPANE_SCROLLBARS_NEVER:
 186       policy = GTK_POLICY_NEVER;
 187       break;
 188     }
 189
 190   gdk_threads_enter ();
 191   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (ptr), policy, policy);
 192   gdk_threads_leave ();
 193 }