1 /* GtkTextAreaPeer.java -- Implements TextAreaPeer with GTK
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 package gnu.java.awt.peer.gtk;
40 
41 import java.awt.Dimension;
42 import java.awt.Font;
43 import java.awt.FontMetrics;
44 import java.awt.TextArea;
45 import java.awt.peer.TextAreaPeer;
46 
47 public class GtkTextAreaPeer extends GtkTextComponentPeer
48   implements TextAreaPeer
49 {
create(int width, int height, int scrollbarVisibility)50   native void create (int width, int height, int scrollbarVisibility);
51 
gtkSetFont(String name, int style, int size)52   native void gtkSetFont (String name, int style, int size);
53 
create()54   void create ()
55   {
56     Font f = awtComponent.getFont ();
57 
58     // By default, Sun sets a TextArea's font when its peer is
59     // created.  If f != null then the peer's font is set by
60     // GtkComponent.create.
61     if (f == null)
62       {
63 	f = new Font ("Fixed", Font.PLAIN, 12);
64 	awtComponent.setFont (f);
65       }
66 
67     FontMetrics fm;
68     if (GtkToolkit.useGraphics2D ())
69       fm = new GdkClasspathFontPeerMetrics (f);
70     else
71       fm = new GdkFontMetrics (f);
72 
73     TextArea ta = ((TextArea) awtComponent);
74     int rows = ta.getRows ();
75     int cols = ta.getColumns ();
76 
77     int width = cols * fm.getMaxAdvance ();
78     int height = rows * (fm.getMaxDescent () + fm.getMaxAscent ());
79 
80     create (width, height, ta.getScrollbarVisibility ());
81   }
82 
GtkTextAreaPeer(TextArea ta)83   public GtkTextAreaPeer (TextArea ta)
84   {
85     super (ta);
86   }
87 
insert(String str, int pos)88   public native void insert (String str, int pos);
replaceRange(String str, int start, int end)89   public native void replaceRange (String str, int start, int end);
90 
getMinimumSize(int rows, int cols)91   public Dimension getMinimumSize (int rows, int cols)
92   {
93     return minimumSize (rows, cols);
94   }
95 
getPreferredSize(int rows, int cols)96   public Dimension getPreferredSize (int rows, int cols)
97   {
98     return preferredSize (rows, cols);
99   }
100 
getHScrollbarHeight()101   native int getHScrollbarHeight ();
getVScrollbarWidth()102   native int getVScrollbarWidth ();
103 
104   // Deprecated
minimumSize(int rows, int cols)105   public Dimension minimumSize (int rows, int cols)
106   {
107     TextArea ta = ((TextArea) awtComponent);
108     int hScrollbarHeight = 0;
109     int vScrollbarWidth = 0;
110     int height = 0;
111     int width = 0;
112 
113     if (ta.getScrollbarVisibility () == TextArea.SCROLLBARS_BOTH
114 	|| ta.getScrollbarVisibility () == TextArea.SCROLLBARS_HORIZONTAL_ONLY)
115       height = getHScrollbarHeight ();
116 
117     if (ta.getScrollbarVisibility () == TextArea.SCROLLBARS_BOTH
118 	|| ta.getScrollbarVisibility () == TextArea.SCROLLBARS_VERTICAL_ONLY)
119       width = getVScrollbarWidth ();
120 
121     Font f = awtComponent.getFont ();
122     if (f == null)
123       return new Dimension (width, height);
124 
125     FontMetrics fm;
126     if (GtkToolkit.useGraphics2D ())
127       fm = new GdkClasspathFontPeerMetrics (f);
128     else
129       fm = new GdkFontMetrics (f);
130 
131     width += cols * fm.getMaxAdvance ();
132     height += rows * (fm.getMaxDescent () + fm.getMaxAscent ());
133 
134     return new Dimension (width, height);
135   }
136 
preferredSize(int rows, int cols)137   public Dimension preferredSize (int rows, int cols)
138   {
139     TextArea ta = ((TextArea) awtComponent);
140     int hScrollbarHeight = 0;
141     int vScrollbarWidth = 0;
142     int height = 0;
143     int width = 0;
144 
145     if (ta.getScrollbarVisibility () == TextArea.SCROLLBARS_BOTH
146 	|| ta.getScrollbarVisibility () == TextArea.SCROLLBARS_HORIZONTAL_ONLY)
147       height = getHScrollbarHeight ();
148 
149     if (ta.getScrollbarVisibility () == TextArea.SCROLLBARS_BOTH
150 	|| ta.getScrollbarVisibility () == TextArea.SCROLLBARS_VERTICAL_ONLY)
151       width = getVScrollbarWidth ();
152 
153     Font f = awtComponent.getFont ();
154     if (f == null)
155       return new Dimension (width, height);
156 
157     FontMetrics fm;
158     if (GtkToolkit.useGraphics2D ())
159       fm = new GdkClasspathFontPeerMetrics (f);
160     else
161       fm = new GdkFontMetrics (f);
162 
163     width += cols * fm.getMaxAdvance ();
164     height += rows * (fm.getMaxDescent () + fm.getMaxAscent ());
165 
166     return new Dimension (width, height);
167   }
168 
replaceText(String str, int start, int end)169   public void replaceText (String str, int start, int end)
170   {
171     replaceRange (str, start, end);
172   }
173 
insertText(String str, int pos)174   public void insertText (String str, int pos)
175   {
176     insert (str, pos);
177   }
178 
setFont(Font f)179   public void setFont (Font f)
180   {
181     gtkSetFont (f.getName (), f.getStyle (), f.getSize ());
182   }
183 }
184