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., 51 Franklin Street, Fifth Floor, Boston, MA 19 02110-1301 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.Rectangle; 45 import java.awt.TextArea; 46 import java.awt.im.InputMethodRequests; 47 import java.awt.peer.TextAreaPeer; 48 import java.awt.peer.TextComponentPeer; 49 50 public class GtkTextAreaPeer extends GtkComponentPeer 51 implements TextComponentPeer, TextAreaPeer 52 { 53 private static transient int DEFAULT_ROWS = 10; 54 private static transient int DEFAULT_COLS = 80; 55 create(int width, int height, int scrollbarVisibility)56 native void create (int width, int height, int scrollbarVisibility); 57 58 /** 59 * Overridden to set Font for text widget inside scrolled window. 60 */ gtkWidgetModifyFont(String name, int style, int size)61 protected native void gtkWidgetModifyFont(String name, int style, int size); 62 gtkWidgetRequestFocus()63 native void gtkWidgetRequestFocus (); 64 connectSignals()65 public native void connectSignals (); 66 getCaretPosition()67 public native int getCaretPosition (); setCaretPosition(int pos)68 public native void setCaretPosition (int pos); getSelectionStart()69 public native int getSelectionStart (); getSelectionEnd()70 public native int getSelectionEnd (); getText()71 public native String getText (); select(int start, int end)72 public native void select (int start, int end); setEditable(boolean state)73 public native void setEditable (boolean state); setText(String text)74 public native void setText (String text); 75 getIndexAtPoint(int x, int y)76 public int getIndexAtPoint(int x, int y) 77 { 78 // FIXME 79 return 0; 80 } 81 getCharacterBounds(int pos)82 public Rectangle getCharacterBounds (int pos) 83 { 84 // FIXME 85 return null; 86 } 87 filterEvents(long filter)88 public long filterEvents (long filter) 89 { 90 // FIXME 91 return filter; 92 } 93 create()94 void create () 95 { 96 Font f = awtComponent.getFont (); 97 98 // By default, Sun sets a TextArea's font when its peer is 99 // created. If f != null then the peer's font is set by 100 // GtkComponent.create. 101 if (f == null) 102 { 103 f = new Font ("Dialog", Font.PLAIN, 12); 104 awtComponent.setFont (f); 105 } 106 107 FontMetrics fm = getFontMetrics (f); 108 109 TextArea ta = ((TextArea) awtComponent); 110 int sizeRows = ta.getRows (); 111 int sizeCols = ta.getColumns (); 112 113 sizeRows = sizeRows == 0 ? DEFAULT_ROWS : sizeRows; 114 sizeCols = sizeCols == 0 ? DEFAULT_COLS : sizeCols; 115 116 int width = sizeCols * fm.getMaxAdvance (); 117 int height = sizeRows * (fm.getMaxDescent () + fm.getMaxAscent ()); 118 119 create (width, height, ta.getScrollbarVisibility ()); 120 setEditable (ta.isEditable ()); 121 } 122 GtkTextAreaPeer(TextArea ta)123 public GtkTextAreaPeer (TextArea ta) 124 { 125 super (ta); 126 127 setText (ta.getText ()); 128 setCaretPosition (0); 129 } 130 insert(String str, int pos)131 public native void insert (String str, int pos); replaceRange(String str, int start, int end)132 public native void replaceRange (String str, int start, int end); 133 getMinimumSize(int rows, int cols)134 public Dimension getMinimumSize (int rows, int cols) 135 { 136 return minimumSize (rows == 0 ? DEFAULT_ROWS : rows, 137 cols == 0 ? DEFAULT_COLS : cols); 138 } 139 getPreferredSize(int rows, int cols)140 public Dimension getPreferredSize (int rows, int cols) 141 { 142 return preferredSize (rows == 0 ? DEFAULT_ROWS : rows, 143 cols == 0 ? DEFAULT_COLS : cols); 144 } 145 getHScrollbarHeight()146 native int getHScrollbarHeight (); getVScrollbarWidth()147 native int getVScrollbarWidth (); 148 149 // Deprecated minimumSize(int rows, int cols)150 public Dimension minimumSize (int rows, int cols) 151 { 152 TextArea ta = ((TextArea) awtComponent); 153 int height = 0; 154 int width = 0; 155 156 if (ta.getScrollbarVisibility () == TextArea.SCROLLBARS_BOTH 157 || ta.getScrollbarVisibility () == TextArea.SCROLLBARS_HORIZONTAL_ONLY) 158 height = getHScrollbarHeight (); 159 160 if (ta.getScrollbarVisibility () == TextArea.SCROLLBARS_BOTH 161 || ta.getScrollbarVisibility () == TextArea.SCROLLBARS_VERTICAL_ONLY) 162 width = getVScrollbarWidth (); 163 164 Font f = awtComponent.getFont (); 165 if (f == null) 166 return new Dimension (width, height); 167 168 FontMetrics fm = getFontMetrics (f); 169 170 int sizeRows = rows == 0 ? DEFAULT_ROWS : rows; 171 int sizeCols = cols == 0 ? DEFAULT_COLS : cols; 172 173 width += sizeCols * fm.getMaxAdvance (); 174 height += sizeRows * (fm.getMaxDescent () + fm.getMaxAscent ()); 175 176 return new Dimension (width, height); 177 } 178 preferredSize(int rows, int cols)179 public Dimension preferredSize (int rows, int cols) 180 { 181 TextArea ta = ((TextArea) awtComponent); 182 int height = 0; 183 int width = 0; 184 185 if (ta.getScrollbarVisibility () == TextArea.SCROLLBARS_BOTH 186 || ta.getScrollbarVisibility () == TextArea.SCROLLBARS_HORIZONTAL_ONLY) 187 height = getHScrollbarHeight (); 188 189 if (ta.getScrollbarVisibility () == TextArea.SCROLLBARS_BOTH 190 || ta.getScrollbarVisibility () == TextArea.SCROLLBARS_VERTICAL_ONLY) 191 width = getVScrollbarWidth (); 192 193 Font f = awtComponent.getFont (); 194 if (f == null) 195 return new Dimension (width, height); 196 197 FontMetrics fm = getFontMetrics (f); 198 199 int sizeRows = rows == 0 ? DEFAULT_ROWS : rows; 200 int sizeCols = cols == 0 ? DEFAULT_COLS : cols; 201 202 width += sizeCols * fm.getMaxAdvance (); 203 height += sizeRows * (fm.getMaxDescent () + fm.getMaxAscent ()); 204 205 return new Dimension (width, height); 206 } 207 replaceText(String str, int start, int end)208 public void replaceText (String str, int start, int end) 209 { 210 replaceRange (str, start, end); 211 } 212 insertText(String str, int pos)213 public void insertText (String str, int pos) 214 { 215 insert (str, pos); 216 } 217 getInputMethodRequests()218 public InputMethodRequests getInputMethodRequests() 219 { 220 // FIXME: implement 221 return null; 222 } 223 } 224