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 #include <cmath>
31 #include "sun_awt_windows_WListPeer.h"
32
33
34 /************************************************************************
35 * AwtList class
36 */
37
38 class AwtList : public AwtComponent {
39 public:
40 const UINT max_index = std::pow(2, (sizeof(WORD) * 8)) - 1;
41 AwtList();
42 virtual ~AwtList();
43
44 virtual LPCTSTR GetClassName();
45
46 static AwtList* Create(jobject peer, jobject parent);
47
48 virtual BOOL NeedDblClick() { return TRUE; }
49
50 INLINE void Select(int pos) {
51 if (isMultiSelect) {
52 SendListMessage(LB_SETSEL, TRUE, pos);
53 }
54 else {
55 SendListMessage(LB_SETCURSEL, pos);
56 }
57 }
58 INLINE void Deselect(int pos) {
59 if (isMultiSelect) {
60 SendListMessage(LB_SETCARETINDEX, pos, FALSE);
61 SendListMessage(LB_SETSEL, FALSE, pos);
62 }
63 else {
64 SendListMessage(LB_SETCURSEL, (WPARAM)-1);
65 }
66 }
67 INLINE UINT GetCount() {
68 LRESULT index = SendListMessage(LB_GETCOUNT);
69 DASSERT(index != LB_ERR);
70 return static_cast<UINT>(index);
71 }
72
73 INLINE void InsertString(WPARAM index, LPTSTR str) {
74 VERIFY(SendListMessage(LB_INSERTSTRING, index, (LPARAM)str) != LB_ERR);
75 }
76 INLINE BOOL IsItemSelected(UINT index) {
77 LRESULT ret = SendListMessage(LB_GETSEL, index);
78 DASSERT(ret != LB_ERR);
79 return (ret > 0);
80 }
81 INLINE BOOL InvalidateList(CONST RECT* lpRect, BOOL bErase) {
82 DASSERT(GetListHandle());
83 return InvalidateRect(GetListHandle(), lpRect, bErase);
84 }
85
86 // Adjust the horizontal scrollbar as necessary
87 void AdjustHorizontalScrollbar();
88 void UpdateMaxItemWidth();
89
90 INLINE long GetMaxWidth() {
91 return m_nMaxWidth;
92 }
93
94 INLINE void CheckMaxWidth(long nWidth) {
95 if (nWidth > m_nMaxWidth) {
96 m_nMaxWidth = nWidth;
97 AdjustHorizontalScrollbar();
98 }
99 }
100
101 // Netscape : Change the font on the list and redraw the
102 // items nicely.
103 virtual void SetFont(AwtFont *pFont);
104
105 /* Set whether a list accepts single or multiple selections. */
106 void SetMultiSelect(BOOL ms);
107
108 /*for multifont list */
109 jobject PreferredItemSize(JNIEnv *envx);
110
111 /*
112 * Windows message handler functions
113 */
114 MsgRouting WmNcHitTest(UINT x, UINT y, LRESULT& retVal);
115 MsgRouting WmMouseDown(UINT flags, int x, int y, int button);
116 MsgRouting WmMouseUp(UINT flags, int x, int y, int button);
117 MsgRouting WmNotify(UINT notifyCode);
118
119 /* for multifont list */
120 MsgRouting OwnerDrawItem(UINT ctrlId, DRAWITEMSTRUCT& drawInfo);
121 MsgRouting OwnerMeasureItem(UINT ctrlId, MEASUREITEMSTRUCT& measureInfo);
122
123 //for horizontal scrollbar
124 MsgRouting WmSize(UINT type, int w, int h);
125
126 MsgRouting WmCtlColor(HDC hDC, HWND hCtrl, UINT ctlColor,
127 HBRUSH& retBrush);
128
129 MsgRouting HandleEvent(MSG *msg, BOOL synthetic);
130
131 MsgRouting WmPrint(HDC hDC, LPARAM flags);
132
133 virtual void SetDragCapture(UINT flags);
134 virtual void ReleaseDragCapture(UINT flags);
135 void Reshape(int x, int y, int w, int h);
136
137 INLINE LRESULT SendListMessage(UINT msg, WPARAM wParam=0, LPARAM lParam=0)
138 {
139 DASSERT(GetListHandle() != NULL);
140 return ::SendMessage(GetListHandle(), msg, wParam, lParam);
141 }
142 INLINE virtual LONG GetStyle() {
143 DASSERT(GetListHandle());
144 return ::GetWindowLong(GetListHandle(), GWL_STYLE);
145 }
146 INLINE virtual void SetStyle(LONG style) {
147 DASSERT(GetListHandle());
148 // SetWindowLong() error handling as recommended by Win32 API doc.
149 ::SetLastError(0);
150 LONG ret = ::SetWindowLong(GetListHandle(), GWL_STYLE, style);
151 DASSERT(ret != 0 || ::GetLastError() == 0);
152 }
153 INLINE virtual LONG GetStyleEx() {
154 DASSERT(GetListHandle());
155 return ::GetWindowLong(GetListHandle(), GWL_EXSTYLE);
156 }
157 INLINE virtual void SetStyleEx(LONG style) {
158 DASSERT(GetListHandle());
159 // SetWindowLong() error handling as recommended by Win32 API doc.
160 ::SetLastError(0);
161 LONG ret = ::SetWindowLong(GetListHandle(), GWL_EXSTYLE, style);
162 DASSERT(ret != 0 || ::GetLastError() == 0);
163 }
164
165 INLINE HWND GetDBCSEditHandle() { return GetListHandle(); }
166
167 virtual BOOL InheritsNativeMouseWheelBehavior();
168
169 virtual BOOL IsFocusingMouseMessage(MSG *pMsg);
170
171 // some methods called on Toolkit thread
172 static jint _GetMaxWidth(void *param);
173 static void _UpdateMaxItemWidth(void *param);
174 static void _AddItems(void *param);
175 static void _DelItems(void *param);
176 static void _Select(void *param);
177 static void _Deselect(void *param);
178 static void _MakeVisible(void *param);
179 static void _SetMultipleSelections(void *param);
180 static jboolean _IsSelected(void *param);
181
182 protected:
183 INLINE HWND GetListHandle() { return GetHWnd(); }
184
185 static BOOL IsListOwnerMessage(UINT message) {
186 switch (message) {
187 case WM_DRAWITEM:
188 case WM_MEASUREITEM:
189 case WM_COMMAND:
190 #if defined(WIN32)
191 case WM_CTLCOLORLISTBOX:
192 #else
193 case WM_CTLCOLOR:
194 #endif
195 return TRUE;
196 }
197 return FALSE;
198 }
199
200 static BOOL IsAwtMessage(UINT message) {
201 return (message >= WM_APP);
202 }
203
204 private:
205 BOOL isMultiSelect;
206 BOOL isWrapperPrint;
207
208 // The width of the longest item in the listbox
209 long m_nMaxWidth;
210 };
211
212 #endif /* AWT_LIST_H */