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_LIST_H
27 #define AWT_LIST_H
28
29 #include "awt_Component.h"
30
31 #include "sun_awt_windows_WListPeer.h"
32
33
34 /************************************************************************
35 * AwtList class
36 */
37
38 class AwtList : public AwtComponent {
39 public:
40 AwtList();
41 virtual ~AwtList();
42
43 virtual LPCTSTR GetClassName();
44
45 static AwtList* Create(jobject peer, jobject parent);
46
47 virtual BOOL NeedDblClick() { return TRUE; }
48
49 INLINE void Select(int pos) {
50 if (isMultiSelect) {
51 SendListMessage(LB_SETSEL, TRUE, pos);
52 }
53 else {
54 SendListMessage(LB_SETCURSEL, pos);
55 }
56 }
57 INLINE void Deselect(int pos) {
58 if (isMultiSelect) {
59 SendListMessage(LB_SETSEL, FALSE, pos);
60 }
61 else {
62 SendListMessage(LB_SETCURSEL, (WPARAM)-1);
63 }
64 }
65 INLINE UINT GetCount() {
66 LRESULT index = SendListMessage(LB_GETCOUNT);
67 DASSERT(index != LB_ERR);
68 return static_cast<UINT>(index);
69 }
70
71 INLINE void InsertString(WPARAM index, LPTSTR str) {
72 VERIFY(SendListMessage(LB_INSERTSTRING, index, (LPARAM)str) != LB_ERR);
73 }
74 INLINE BOOL IsItemSelected(UINT index) {
75 LRESULT ret = SendListMessage(LB_GETSEL, index);
76 DASSERT(ret != LB_ERR);
77 return (ret > 0);
78 }
79 INLINE BOOL InvalidateList(CONST RECT* lpRect, BOOL bErase) {
80 DASSERT(GetListHandle());
81 return InvalidateRect(GetListHandle(), lpRect, bErase);
82 }
83
84 // Adjust the horizontal scrollbar as necessary
85 void AdjustHorizontalScrollbar();
86 void UpdateMaxItemWidth();
87
88 INLINE long GetMaxWidth() {
89 return m_nMaxWidth;
90 }
91
92 INLINE void CheckMaxWidth(long nWidth) {
93 if (nWidth > m_nMaxWidth) {
94 m_nMaxWidth = nWidth;
95 AdjustHorizontalScrollbar();
96 }
97 }
98
99 // Netscape : Change the font on the list and redraw the
100 // items nicely.
101 virtual void SetFont(AwtFont *pFont);
102
103 /* Set whether a list accepts single or multiple selections. */
104 void SetMultiSelect(BOOL ms);
105
106 /*for multifont list */
107 jobject PreferredItemSize(JNIEnv *envx);
108
109 /*
110 * Windows message handler functions
111 */
112 MsgRouting WmNcHitTest(UINT x, UINT y, LRESULT& retVal);
113 MsgRouting WmMouseDown(UINT flags, int x, int y, int button);
114 MsgRouting WmMouseUp(UINT flags, int x, int y, int button);
115 MsgRouting WmNotify(UINT notifyCode);
116
117 /* for multifont list */
118 MsgRouting OwnerDrawItem(UINT ctrlId, DRAWITEMSTRUCT& drawInfo);
119 MsgRouting OwnerMeasureItem(UINT ctrlId, MEASUREITEMSTRUCT& measureInfo);
120
121 //for horizontal scrollbar
122 MsgRouting WmSize(UINT type, int w, int h);
123
124 MsgRouting WmCtlColor(HDC hDC, HWND hCtrl, UINT ctlColor,
125 HBRUSH& retBrush);
126
127 MsgRouting HandleEvent(MSG *msg, BOOL synthetic);
128
129 MsgRouting WmPrint(HDC hDC, LPARAM flags);
130
131 virtual void SetDragCapture(UINT flags);
132 virtual void ReleaseDragCapture(UINT flags);
133 void Reshape(int x, int y, int w, int h);
134
135 INLINE LRESULT SendListMessage(UINT msg, WPARAM wParam=0, LPARAM lParam=0)
136 {
137 DASSERT(GetListHandle() != NULL);
138 return ::SendMessage(GetListHandle(), msg, wParam, lParam);
139 }
140 INLINE virtual LONG GetStyle() {
141 DASSERT(GetListHandle());
142 return ::GetWindowLong(GetListHandle(), GWL_STYLE);
143 }
144 INLINE virtual void SetStyle(LONG style) {
145 DASSERT(GetListHandle());
146 // SetWindowLong() error handling as recommended by Win32 API doc.
147 ::SetLastError(0);
148 LONG ret = ::SetWindowLong(GetListHandle(), GWL_STYLE, style);
149 DASSERT(ret != 0 || ::GetLastError() == 0);
150 }
151 INLINE virtual LONG GetStyleEx() {
152 DASSERT(GetListHandle());
153 return ::GetWindowLong(GetListHandle(), GWL_EXSTYLE);
154 }
155 INLINE virtual void SetStyleEx(LONG style) {
156 DASSERT(GetListHandle());
157 // SetWindowLong() error handling as recommended by Win32 API doc.
158 ::SetLastError(0);
159 LONG ret = ::SetWindowLong(GetListHandle(), GWL_EXSTYLE, style);
160 DASSERT(ret != 0 || ::GetLastError() == 0);
161 }
162
163 INLINE HWND GetDBCSEditHandle() { return GetListHandle(); }
164
165 virtual BOOL InheritsNativeMouseWheelBehavior();
166
167 virtual BOOL IsFocusingMouseMessage(MSG *pMsg);
168
169 // some methods called on Toolkit thread
170 static jint _GetMaxWidth(void *param);
171 static void _UpdateMaxItemWidth(void *param);
172 static void _AddItems(void *param);
173 static void _DelItems(void *param);
174 static void _Select(void *param);
175 static void _Deselect(void *param);
176 static void _MakeVisible(void *param);
177 static void _SetMultipleSelections(void *param);
178 static jboolean _IsSelected(void *param);
179
180 protected:
181 INLINE HWND GetListHandle() { return GetHWnd(); }
182
183 static BOOL IsListOwnerMessage(UINT message) {
184 switch (message) {
185 case WM_DRAWITEM:
186 case WM_MEASUREITEM:
187 case WM_COMMAND:
188 #if defined(WIN32)
189 case WM_CTLCOLORLISTBOX:
190 #else
191 case WM_CTLCOLOR:
192 #endif
193 return TRUE;
194 }
195 return FALSE;
196 }
197
198 static BOOL IsAwtMessage(UINT message) {
199 return (message >= WM_APP);
200 }
201
202 private:
203 BOOL isMultiSelect;
204 BOOL isWrapperPrint;
205
206 // The width of the longest item in the listbox
207 long m_nMaxWidth;
208 };
209
210 #endif /* AWT_LIST_H */