libjava/jni/gtk-peer/gnu_java_awt_peer_gtk_GtkLabelPeer.c

   1 /* gtklabelpeer.c -- Native implementation of GtkLabelPeer
   2    Copyright (C) 1998, 1999 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_GtkLabelPeer.h"
  41
  42 JNIEXPORT void JNICALL
  43 Java_gnu_java_awt_peer_gtk_GtkLabelPeer_create
  44   (JNIEnv *env, jobject obj, jstring text, jfloat xalign)
  45 {
  46   GtkWidget *label;
  47   GtkWidget *eventbox;
  48   const char *str;
  49
  50   NSA_SET_GLOBAL_REF (env, obj);
  51
  52   str = (*env)->GetStringUTFChars (env, text, 0);
  53
  54   gdk_threads_enter ();
  55
  56   eventbox = gtk_event_box_new ();
  57   label = gtk_label_new (str);
  58   gtk_misc_set_alignment (GTK_MISC (label), xalign, 0.5);
  59   gtk_container_add (GTK_CONTAINER (eventbox), label);
  60   gtk_widget_show (label);
  61
  62   gdk_threads_leave ();
  63
  64   (*env)->ReleaseStringUTFChars (env, text, str);
  65
  66   NSA_SET_PTR (env, obj, eventbox);
  67 }
  68
  69 JNIEXPORT void JNICALL
  70 Java_gnu_java_awt_peer_gtk_GtkLabelPeer_gtkWidgetModifyFont
  71   (JNIEnv *env, jobject obj, jstring name, jint style, jint size)
  72 {
  73   const char *font_name;
  74   void *ptr;
  75   GtkWidget *label;
  76   PangoFontDescription *font_desc;
  77
  78   ptr = NSA_GET_PTR (env, obj);
  79
  80   font_name = (*env)->GetStringUTFChars (env, name, NULL);
  81
  82   gdk_threads_enter ();
  83
  84   label = gtk_bin_get_child (GTK_BIN (ptr));
  85
  86   if (!label)
  87     return;
  88
  89   font_desc = pango_font_description_from_string (font_name);
  90   pango_font_description_set_size (font_desc, size * dpi_conversion_factor);
  91
  92   if (style & AWT_STYLE_BOLD)
  93     pango_font_description_set_weight (font_desc, PANGO_WEIGHT_BOLD);
  94
  95   if (style & AWT_STYLE_ITALIC)
  96     pango_font_description_set_style (font_desc, PANGO_STYLE_OBLIQUE);
  97
  98   gtk_widget_modify_font (GTK_WIDGET (label), font_desc);
  99
 100   pango_font_description_free (font_desc);
 101
 102   gdk_threads_leave ();
 103
 104   (*env)->ReleaseStringUTFChars (env, name, font_name);
 105 }
 106
 107 JNIEXPORT void JNICALL
 108 Java_gnu_java_awt_peer_gtk_GtkLabelPeer_setText
 109   (JNIEnv *env, jobject obj, jstring text)
 110 {
 111   const char *str;
 112   void *ptr;
 113   GtkWidget *label;
 114
 115   ptr = NSA_GET_PTR (env, obj);
 116
 117   str = (*env)->GetStringUTFChars (env, text, 0);
 118
 119   gdk_threads_enter ();
 120
 121   label = gtk_bin_get_child (GTK_BIN (ptr));
 122
 123   gtk_label_set_label (GTK_LABEL (label), str);
 124
 125   gdk_threads_leave ();
 126
 127   (*env)->ReleaseStringUTFChars (env, text, str);
 128 }
 129
 130 JNIEXPORT void JNICALL
 131 Java_gnu_java_awt_peer_gtk_GtkLabelPeer_nativeSetAlignment
 132   (JNIEnv *env, jobject obj, jfloat xalign)
 133 {
 134   void *ptr;
 135   GtkWidget *label;
 136
 137   ptr = NSA_GET_PTR (env, obj);
 138
 139   gdk_threads_enter ();
 140
 141   label = gtk_bin_get_child (GTK_BIN(ptr));
 142
 143   gtk_misc_set_alignment (GTK_MISC (label), xalign, 0.5);
 144
 145   gdk_threads_leave ();
 146 }
 147
 148 JNIEXPORT void JNICALL
 149 Java_gnu_java_awt_peer_gtk_GtkLabelPeer_setNativeBounds
 150   (JNIEnv *env, jobject obj, jint x, jint y, jint width, jint height)
 151 {
 152   GtkWidget *widget;
 153   void *ptr;
 154
 155   ptr = NSA_GET_PTR (env, obj);
 156
 157   gdk_threads_enter ();
 158
 159   widget = GTK_WIDGET (ptr);
 160
 161   /* We assume that -1 is a width or height and not a request for the
 162      widget's natural size. */
 163   width = width < 0 ? 0 : width;
 164   height = height < 0 ? 0 : height;
 165
 166   if (!(width == 0 && height == 0))
 167     {
 168       /* Set the event box's size request... */
 169       gtk_widget_set_size_request (widget, width, height);
 170       /* ...and the label's size request. */
 171       gtk_widget_set_size_request (gtk_bin_get_child (GTK_BIN (widget)),
 172                                    width, height);
 173
 174       if (widget->parent != NULL)
 175         gtk_fixed_move (GTK_FIXED (widget->parent), widget, x, y);
 176     }
 177
 178   gdk_threads_leave ();
 179 }