1 /*
2 * Copyright (c) 1996, 2013, 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_SETCARETINDEX, pos, FALSE);
60 SendListMessage(LB_SETSEL, FALSE, pos);
61 }
62 else {
63 SendListMessage(LB_SETCURSEL, (WPARAM)-1);
64 }
65 }
66 INLINE UINT GetCount() {
67 LRESULT index = SendListMessage(LB_GETCOUNT);
68 DASSERT(index != LB_ERR);
69 return static_cast<UINT>(index);
70 }
71
72 INLINE void InsertString(WPARAM index, LPTSTR str) {
73 VERIFY(SendListMessage(LB_INSERTSTRING, index, (LPARAM)str) != LB_ERR);
74 }
75 INLINE BOOL IsItemSelected(UINT index) {
76 LRESULT ret = SendListMessage(LB_GETSEL, index);
77 DASSERT(ret != LB_ERR);
78 return (ret > 0);
79 }
80 INLINE BOOL InvalidateList(CONST RECT* lpRect, BOOL bErase) {
81 DASSERT(GetListHandle());
82 return InvalidateRect(GetListHandle(), lpRect, bErase);
83 }
84
85 // Adjust the horizontal scrollbar as necessary
86 void AdjustHorizontalScrollbar();
87 void UpdateMaxItemWidth();
88
89 INLINE long GetMaxWidth() {
90 return m_nMaxWidth;
91 }
92
93 INLINE void CheckMaxWidth(long nWidth) {
94 if (nWidth > m_nMaxWidth) {
95 m_nMaxWidth = nWidth;
96 AdjustHorizontalScrollbar();
97 }
98 }
99
100 // Netscape : Change the font on the list and redraw the
101 // items nicely.
102 virtual void SetFont(AwtFont *pFont);
103
104 /* Set whether a list accepts single or multiple selections. */
105 void SetMultiSelect(BOOL ms);
106
107 /*for multifont list */
108 jobject PreferredItemSize(JNIEnv *envx);
109
110 /*
111 * Windows message handler functions
112 */
113 MsgRouting WmNcHitTest(UINT x, UINT y, LRESULT& retVal);
114 MsgRouting WmMouseDown(UINT flags, int x, int y, int button);
115 MsgRouting WmMouseUp(UINT flags, int x, int y, int button);
116 MsgRouting WmNotify(UINT notifyCode);
117
118 /* for multifont list */
119 MsgRouting OwnerDrawItem(UINT ctrlId, DRAWITEMSTRUCT& drawInfo);
120 MsgRouting OwnerMeasureItem(UINT ctrlId, MEASUREITEMSTRUCT& measureInfo);
121
122 //for horizontal scrollbar
123 MsgRouting WmSize(UINT type, int w, int h);
124
125 MsgRouting WmCtlColor(HDC hDC, HWND hCtrl, UINT ctlColor,
126 HBRUSH& retBrush);
127
128 MsgRouting HandleEvent(MSG *msg, BOOL synthetic);
129
130 MsgRouting WmPrint(HDC hDC, LPARAM flags);
131
132 virtual void SetDragCapture(UINT flags);
133 virtual void ReleaseDragCapture(UINT flags);
134 void Reshape(int x, int y, int w, int h);
135
136 INLINE LRESULT SendListMessage(UINT msg, WPARAM wParam=0, LPARAM lParam=0)
137 {
138 DASSERT(GetListHandle() != NULL);
139 return ::SendMessage(GetListHandle(), msg, wParam, lParam);
140 }
141 INLINE virtual LONG GetStyle() {
142 DASSERT(GetListHandle());
143 return ::GetWindowLong(GetListHandle(), GWL_STYLE);
144 }
145 INLINE virtual void SetStyle(LONG style) {
146 DASSERT(GetListHandle());
147 // SetWindowLong() error handling as recommended by Win32 API doc.
148 ::SetLastError(0);
149 LONG ret = ::SetWindowLong(GetListHandle(), GWL_STYLE, style);
150 DASSERT(ret != 0 || ::GetLastError() == 0);
151 }
152 INLINE virtual LONG GetStyleEx() {
153 DASSERT(GetListHandle());
154 return ::GetWindowLong(GetListHandle(), GWL_EXSTYLE);
155 }
156 INLINE virtual void SetStyleEx(LONG style) {
157 DASSERT(GetListHandle());
158 // SetWindowLong() error handling as recommended by Win32 API doc.
159 ::SetLastError(0);
160 LONG ret = ::SetWindowLong(GetListHandle(), GWL_EXSTYLE, style);
161 DASSERT(ret != 0 || ::GetLastError() == 0);
162 }
163
164 INLINE HWND GetDBCSEditHandle() { return GetListHandle(); }
165
166 virtual BOOL InheritsNativeMouseWheelBehavior();
167
168 virtual BOOL IsFocusingMouseMessage(MSG *pMsg);
169
170 // some methods called on Toolkit thread
171 static jint _GetMaxWidth(void *param);
172 static void _UpdateMaxItemWidth(void *param);
173 static void _AddItems(void *param);
174 static void _DelItems(void *param);
175 static void _Select(void *param);
176 static void _Deselect(void *param);
177 static void _MakeVisible(void *param);
178 static void _SetMultipleSelections(void *param);
179 static jboolean _IsSelected(void *param);
180
181 protected:
182 INLINE HWND GetListHandle() { return GetHWnd(); }
183
184 static BOOL IsListOwnerMessage(UINT message) {
185 switch (message) {
186 case WM_DRAWITEM:
187 case WM_MEASUREITEM:
188 case WM_COMMAND:
189 #if defined(WIN32)
190 case WM_CTLCOLORLISTBOX:
191 #else
192 case WM_CTLCOLOR:
193 #endif
194 return TRUE;
195 }
196 return FALSE;
197 }
198
199 static BOOL IsAwtMessage(UINT message) {
200 return (message >= WM_APP);
201 }
202
203 private:
204 BOOL isMultiSelect;
205 BOOL isWrapperPrint;
206
207 // The width of the longest item in the listbox
208 long m_nMaxWidth;
209 };
210
211 #endif /* AWT_LIST_H */