1 /*
   2  * Copyright (c) 1996, 2009, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #ifndef AWT_TEXTCOMPONENT_H
  27 #define AWT_TEXTCOMPONENT_H
  28 
  29 #include "awt_Component.h"
  30 
  31 #include "java_awt_TextComponent.h"
  32 #include "sun_awt_windows_WTextComponentPeer.h"
  33 
  34 #include <ole2.h>
  35 #include <richedit.h>
  36 #include <richole.h>
  37 
  38 
  39 /************************************************************************
  40  * AwtTextComponent class
  41  */
  42 
  43 class AwtTextComponent : public AwtComponent {
  44 public:
  45     /* java.awt.TextComponent canAccessClipboard field ID */
  46     static jfieldID canAccessClipboardID;
  47 
  48     AwtTextComponent();
  49 
  50     virtual LPCTSTR GetClassName();
  51 
  52     int RemoveCR(WCHAR *pStr);
  53 
  54     virtual LONG getJavaSelPos(LONG orgPos);
  55     virtual LONG getWin32SelPos(LONG orgPos);
  56 
  57     void CheckLineSeparator(WCHAR *pStr);
  58 
  59     virtual void SetSelRange(LONG start, LONG end);
  60 
  61     INLINE void SetText(LPCTSTR text) {
  62         ::SetWindowText(GetHWnd(), text);
  63     }
  64 
  65     INLINE virtual int GetText(LPTSTR buffer, int size) {
  66         return ::GetWindowText(GetHWnd(), buffer, size);
  67     }
  68 
  69     // called on Toolkit thread from JNI
  70     static jstring _GetText(void *param);
  71 
  72     void SetFont(AwtFont* font);
  73 
  74     /*
  75      * Windows message handler functions
  76      */
  77     MsgRouting WmNotify(UINT notifyCode);
  78     MsgRouting HandleEvent(MSG *msg, BOOL synthetic);
  79     MsgRouting WmPaste();
  80 
  81     virtual BOOL IsFocusingMouseMessage(MSG *pMsg);
  82 
  83 /*  To be fully implemented in a future release
  84 
  85     MsgRouting WmKeyDown(UINT wkey, UINT repCnt,
  86                          UINT flags, BOOL system);  // accessibility support
  87 */
  88 
  89 
  90     //im --- for over the spot composition
  91     void SetCompositionWindow(RECT& rect);
  92 
  93     INLINE HWND GetDBCSEditHandle() { return GetHWnd(); }
  94 
  95     BOOL m_isLFonly;
  96     BOOL m_EOLchecked;
  97 
  98     // some methods invoked on Toolkit thread
  99     static void _SetText(void *param);
 100     static jint _GetSelectionStart(void *param);
 101     static jint _GetSelectionEnd(void *param);
 102     static void _Select(void *param);
 103     static void _EnableEditing(void *param);
 104 
 105   protected:
 106     INLINE LONG GetStartSelectionPos() { return m_lStartPos; }
 107     INLINE LONG GetEndSelectionPos() { return m_lEndPos; }
 108     INLINE LONG GetLastSelectionPos() { return m_lLastPos; }
 109     INLINE VOID SetStartSelectionPos(LONG lPos) { m_lStartPos = lPos; }
 110     INLINE VOID SetEndSelectionPos(LONG lPos) { m_lEndPos = lPos; }
 111     INLINE VOID SetLastSelectionPos(LONG lPos) { m_lLastPos = lPos; }
 112 
 113     // Used to prevent untrusted code from synthesizing a WM_PASTE message
 114     // by posting a <CTRL>-V KeyEvent
 115     BOOL    m_synthetic;
 116     virtual LONG EditGetCharFromPos(POINT& pt) = 0;
 117 
 118 private:
 119 
 120     // Fields to track the selection state while the left mouse button is
 121     // pressed. They are used to simulate autoscrolling.
 122     LONG    m_lStartPos;
 123     LONG    m_lEndPos;
 124     LONG    m_lLastPos;
 125 
 126     HFONT m_hFont;
 127     //im --- end
 128 
 129 
 130     //
 131     // Accessibility support
 132     //
 133 //public:
 134 //    jlong javaEventsMask;
 135 };
 136 
 137 #endif /* AWT_TEXTCOMPONENT_H */