1 /* 2 * Copyright (c) 1996, 2006, 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 #include "awt_MenuBar.h" 27 #include "awt_Frame.h" 28 29 /* IMPORTANT! Read the README.JNI file for notes on JNI converted AWT code. 30 */ 31 32 /***********************************************************************/ 33 // struct for _AddMenu() method 34 struct AddMenuStruct { 35 jobject menubar; 36 jobject menu; 37 }; 38 /************************************************************************ 39 * AwtMenuBar fields 40 */ 41 42 jmethodID AwtMenuBar::getMenuMID; 43 jmethodID AwtMenuBar::getMenuCountMID; 44 45 46 /************************************************************************ 47 * AwtMenuBar methods 48 */ 49 50 51 AwtMenuBar::AwtMenuBar() { 52 m_frame = NULL; 53 } 54 55 AwtMenuBar::~AwtMenuBar() 56 { 57 } 58 59 void AwtMenuBar::Dispose() 60 { 61 m_frame = NULL; 62 63 AwtMenu::Dispose(); 64 } 65 66 LPCTSTR AwtMenuBar::GetClassName() { 67 return TEXT("SunAwtMenuBar"); 68 } 69 70 /* Create a new AwtMenuBar object and menu. */ 71 AwtMenuBar* AwtMenuBar::Create(jobject self, jobject framePeer) 72 { 73 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2); 74 75 jobject target = NULL; 76 AwtMenuBar* menuBar = NULL; 77 78 try { 79 if (env->EnsureLocalCapacity(1) < 0) { 80 return NULL; 81 } 82 83 /* target is a java.awt.MenuBar */ 84 target = env->GetObjectField(self, AwtObject::targetID); 85 JNI_CHECK_NULL_GOTO(target, "null target", done); 86 87 menuBar = new AwtMenuBar(); 88 89 SetLastError(0); 90 HMENU hMenu = ::CreateMenu(); 91 // fix for 5088782 92 if (!CheckMenuCreation(env, self, hMenu)) 93 { 94 env->DeleteLocalRef(target); 95 return NULL; 96 } 97 98 menuBar->SetHMenu(hMenu); 99 100 menuBar->LinkObjects(env, self); 101 if (framePeer != NULL) { 102 PDATA pData; 103 JNI_CHECK_PEER_GOTO(framePeer, done); 104 menuBar->m_frame = (AwtFrame *)pData; 105 } else { 106 menuBar->m_frame = NULL; 107 } 108 } catch (...) { 109 env->DeleteLocalRef(target); 110 throw; 111 } 112 113 done: 114 if (target != NULL) { 115 env->DeleteLocalRef(target); 116 } 117 118 return menuBar; 119 } 120 121 HWND AwtMenuBar::GetOwnerHWnd() 122 { 123 AwtFrame *myFrame = m_frame; 124 if (myFrame == NULL) 125 return NULL; 126 else 127 return myFrame->GetHWnd(); 128 } 129 130 void AwtMenuBar::SendDrawItem(AwtMenuItem* awtMenuItem, 131 DRAWITEMSTRUCT& drawInfo) 132 { 133 awtMenuItem->DrawItem(drawInfo); 134 } 135 136 void AwtMenuBar::SendMeasureItem(AwtMenuItem* awtMenuItem, 137 HDC hDC, MEASUREITEMSTRUCT& measureInfo) 138 { 139 awtMenuItem->MeasureItem(hDC, measureInfo); 140 } 141 142 int AwtMenuBar::CountItem(jobject menuBar) 143 { 144 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2); 145 jint nCount = env->CallIntMethod(menuBar, AwtMenuBar::getMenuCountMID); 146 DASSERT(!safe_ExceptionOccurred(env)); 147 148 return nCount; 149 } 150 151 AwtMenuItem* AwtMenuBar::GetItem(jobject target, long index) 152 { 153 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2); 154 if (env->EnsureLocalCapacity(2) < 0) { 155 return NULL; 156 } 157 158 jobject menu = env->CallObjectMethod(target, AwtMenuBar::getMenuMID,index); 159 DASSERT(!safe_ExceptionOccurred(env)); 160 161 jobject menuItemPeer = GetPeerForTarget(env, menu); 162 PDATA pData; 163 JNI_CHECK_PEER_RETURN_NULL(menuItemPeer); 164 AwtMenuItem* awtMenuItem = (AwtMenuItem*)pData; 165 166 env->DeleteLocalRef(menu); 167 env->DeleteLocalRef(menuItemPeer); 168 169 return awtMenuItem; 170 } 171 172 void AwtMenuBar::DrawItem(DRAWITEMSTRUCT& drawInfo) 173 { 174 DASSERT(drawInfo.CtlType == ODT_MENU); 175 AwtMenu::DrawItems(drawInfo); 176 } 177 178 void AwtMenuBar::MeasureItem(HDC hDC, 179 MEASUREITEMSTRUCT& measureInfo) 180 { 181 DASSERT(measureInfo.CtlType == ODT_MENU); 182 AwtMenu::MeasureItem(hDC, measureInfo); 183 } 184 185 void AwtMenuBar::AddItem(AwtMenuItem* item) 186 { 187 AwtMenu::AddItem(item); 188 HWND hOwnerWnd = GetOwnerHWnd(); 189 if (hOwnerWnd != NULL) { 190 VERIFY(::InvalidateRect(hOwnerWnd,0,TRUE)); 191 } 192 } 193 194 void AwtMenuBar::DeleteItem(UINT index) 195 { 196 AwtMenu::DeleteItem(index); 197 HWND hOwnerWnd = GetOwnerHWnd(); 198 if (hOwnerWnd != NULL) { 199 VERIFY(::InvalidateRect(hOwnerWnd,0,TRUE)); 200 } 201 ::DrawMenuBar(GetOwnerHWnd()); 202 } 203 204 LRESULT AwtMenuBar::WinThreadExecProc(ExecuteArgs * args) 205 { 206 switch( args->cmdId ) { 207 case MENUBAR_DELITEM: 208 this->DeleteItem(static_cast<UINT>(args->param1)); 209 break; 210 211 default: 212 AwtMenu::WinThreadExecProc(args); 213 break; 214 } 215 return 0L; 216 } 217 218 void AwtMenuBar::_AddMenu(void *param) 219 { 220 JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2); 221 222 AddMenuStruct *ams = (AddMenuStruct *)param; 223 jobject self = ams->menubar; 224 jobject menu = ams->menu; 225 226 AwtMenuBar *m = NULL; 227 228 PDATA pData; 229 JNI_CHECK_PEER_GOTO(self, ret); 230 JNI_CHECK_NULL_GOTO(menu, "null menu", ret); 231 m = (AwtMenuBar *)pData; 232 if (::IsWindow(m->GetOwnerHWnd())) 233 { 234 /* The menu was already created and added during peer creation -- redraw */ 235 ::DrawMenuBar(m->GetOwnerHWnd()); 236 } 237 ret: 238 env->DeleteGlobalRef(self); 239 if (menu != NULL) { 240 env->DeleteGlobalRef(menu); 241 } 242 243 delete ams; 244 } 245 246 /************************************************************************ 247 * MenuBar native methods 248 */ 249 250 extern "C" { 251 252 /* 253 * Class: java_awt_MenuBar 254 * Method: initIDs 255 * Signature: ()V 256 */ 257 JNIEXPORT void JNICALL 258 Java_java_awt_MenuBar_initIDs(JNIEnv *env, jclass cls) 259 { 260 TRY; 261 262 AwtMenuBar::getMenuCountMID = env->GetMethodID(cls, "getMenuCountImpl", "()I"); 263 AwtMenuBar::getMenuMID = env->GetMethodID(cls, "getMenuImpl", 264 "(I)Ljava/awt/Menu;"); 265 DASSERT(AwtMenuBar::getMenuCountMID != NULL); 266 DASSERT(AwtMenuBar::getMenuMID != NULL); 267 268 CATCH_BAD_ALLOC; 269 } 270 271 } /* extern "C" */ 272 273 274 /************************************************************************ 275 * WMenuBarPeer native methods 276 */ 277 278 extern "C" { 279 280 /* 281 * Class: sun_awt_windows_WMenuBarPeer 282 * Method: addMenu 283 * Signature: (Ljava/awt/Menu;)V 284 */ 285 JNIEXPORT void JNICALL 286 Java_sun_awt_windows_WMenuBarPeer_addMenu(JNIEnv *env, jobject self, 287 jobject menu) 288 { 289 TRY; 290 291 AddMenuStruct *ams = new AddMenuStruct; 292 ams->menubar = env->NewGlobalRef(self); 293 ams->menu = env->NewGlobalRef(menu); 294 295 AwtToolkit::GetInstance().SyncCall(AwtMenuBar::_AddMenu, ams); 296 // global refs and ams are deleted in _AddMenu() 297 298 CATCH_BAD_ALLOC; 299 } 300 301 /* 302 * Class: sun_awt_windows_WMenuBarPeer 303 * Method: delMenu 304 * Signature: (I)V 305 */ 306 JNIEXPORT void JNICALL 307 Java_sun_awt_windows_WMenuBarPeer_delMenu(JNIEnv *env, jobject self, 308 jint index) 309 { 310 TRY; 311 312 PDATA pData; 313 JNI_CHECK_PEER_RETURN(self); 314 AwtObject::WinThreadExec(self, AwtMenuBar::MENUBAR_DELITEM, (LPARAM)index); 315 316 CATCH_BAD_ALLOC; 317 } 318 319 /* 320 * Class: sun_awt_windows_WMenuBarPeer 321 * Method: create 322 * Signature: (Lsun/awt/windows/WFramePeer;)V 323 */ 324 JNIEXPORT void JNICALL 325 Java_sun_awt_windows_WMenuBarPeer_create(JNIEnv *env, jobject self, 326 jobject frame) 327 { 328 TRY; 329 330 AwtToolkit::CreateComponent(self, frame, 331 (AwtToolkit::ComponentFactory) 332 AwtMenuBar::Create); 333 PDATA pData; 334 JNI_CHECK_PEER_CREATION_RETURN(self); 335 336 CATCH_BAD_ALLOC; 337 } 338 339 } /* extern "C" */