J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1996-2006 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | #ifdef HEADLESS |
| 27 | #error This file should not be included in headless library |
| 28 | #endif |
| 29 | |
| 30 | #include "awt_p.h" |
| 31 | #include "java_awt_Component.h" |
| 32 | #include "sun_awt_motif_MComponentPeer.h" |
| 33 | |
| 34 | #include "awt_Component.h" |
| 35 | |
| 36 | |
| 37 | #include <jni.h> |
| 38 | #include <jni_util.h> |
| 39 | #include <jawt_md.h> |
| 40 | |
| 41 | extern struct MComponentPeerIDs mComponentPeerIDs; |
| 42 | extern struct ComponentIDs componentIDs; |
| 43 | #ifndef XAWT |
| 44 | extern AwtGraphicsConfigDataPtr |
| 45 | getGraphicsConfigFromComponentPeer(JNIEnv *env, jobject this); |
| 46 | #endif |
| 47 | |
| 48 | #ifdef XAWT |
| 49 | #include "awt_GraphicsEnv.h" |
| 50 | extern jfieldID windowID; |
| 51 | extern jfieldID targetID; |
| 52 | extern jfieldID graphicsConfigID; |
| 53 | extern jfieldID drawStateID; |
| 54 | extern struct X11GraphicsConfigIDs x11GraphicsConfigIDs; |
| 55 | #endif |
| 56 | |
| 57 | /* |
| 58 | * Lock the surface of the target component for native rendering. |
| 59 | * When finished drawing, the surface must be unlocked with |
| 60 | * Unlock(). This function returns a bitmask with one or more of the |
| 61 | * following values: |
| 62 | * |
| 63 | * JAWT_LOCK_ERROR - When an error has occurred and the surface could not |
| 64 | * be locked. |
| 65 | * |
| 66 | * JAWT_LOCK_CLIP_CHANGED - When the clip region has changed. |
| 67 | * |
| 68 | * JAWT_LOCK_BOUNDS_CHANGED - When the bounds of the surface have changed. |
| 69 | * |
| 70 | * JAWT_LOCK_SURFACE_CHANGED - When the surface itself has changed |
| 71 | */ |
| 72 | JNIEXPORT jint JNICALL awt_DrawingSurface_Lock(JAWT_DrawingSurface* ds) |
| 73 | { |
| 74 | JNIEnv* env; |
| 75 | jobject target, peer; |
| 76 | jclass componentClass; |
| 77 | jint drawState; |
| 78 | |
| 79 | if (ds == NULL) { |
| 80 | #ifdef DEBUG |
| 81 | fprintf(stderr, "Drawing Surface is NULL\n"); |
| 82 | #endif |
| 83 | return (jint)JAWT_LOCK_ERROR; |
| 84 | } |
| 85 | env = ds->env; |
| 86 | target = ds->target; |
| 87 | |
| 88 | /* Make sure the target is a java.awt.Component */ |
| 89 | componentClass = (*env)->FindClass(env, "java/awt/Component"); |
| 90 | if (!(*env)->IsInstanceOf(env, target, componentClass)) { |
| 91 | #ifdef DEBUG |
| 92 | fprintf(stderr, "Target is not a component\n"); |
| 93 | #endif |
| 94 | return (jint)JAWT_LOCK_ERROR; |
| 95 | } |
| 96 | |
| 97 | if (!awtLockInited) { |
| 98 | return (jint)JAWT_LOCK_ERROR; |
| 99 | } |
| 100 | AWT_LOCK(); |
| 101 | |
| 102 | /* Get the peer of the target component */ |
| 103 | peer = (*env)->GetObjectField(env, target, componentIDs.peer); |
| 104 | if (JNU_IsNull(env, peer)) { |
| 105 | #ifdef DEBUG |
| 106 | fprintf(stderr, "Component peer is NULL\n"); |
| 107 | #endif |
| 108 | AWT_FLUSH_UNLOCK(); |
| 109 | return (jint)JAWT_LOCK_ERROR; |
| 110 | } |
| 111 | |
| 112 | #ifndef XAWT |
| 113 | drawState = (*env)->GetIntField(env, peer, mComponentPeerIDs.drawState); |
| 114 | (*env)->SetIntField(env, peer, mComponentPeerIDs.drawState, 0); |
| 115 | #else |
| 116 | drawState = (*env)->GetIntField(env, peer, drawStateID); |
| 117 | (*env)->SetIntField(env, peer, drawStateID, 0); |
| 118 | #endif |
| 119 | return drawState; |
| 120 | } |
| 121 | |
| 122 | JNIEXPORT int32_t JNICALL |
| 123 | awt_GetColor(JAWT_DrawingSurface* ds, int32_t r, int32_t g, int32_t b) |
| 124 | { |
| 125 | JNIEnv* env; |
| 126 | jobject target, peer; |
| 127 | jclass componentClass; |
| 128 | AwtGraphicsConfigDataPtr adata; |
| 129 | int32_t result; |
| 130 | #ifdef XAWT |
| 131 | jobject gc_object; |
| 132 | #endif |
| 133 | if (ds == NULL) { |
| 134 | #ifdef DEBUG |
| 135 | fprintf(stderr, "Drawing Surface is NULL\n"); |
| 136 | #endif |
| 137 | return (int32_t) 0; |
| 138 | } |
| 139 | |
| 140 | env = ds->env; |
| 141 | target = ds->target; |
| 142 | |
| 143 | /* Make sure the target is a java.awt.Component */ |
| 144 | componentClass = (*env)->FindClass(env, "java/awt/Component"); |
| 145 | if (!(*env)->IsInstanceOf(env, target, componentClass)) { |
| 146 | #ifdef DEBUG |
| 147 | fprintf(stderr, "DrawingSurface target must be a component\n"); |
| 148 | #endif |
| 149 | return (int32_t) 0; |
| 150 | } |
| 151 | |
| 152 | if (!awtLockInited) { |
| 153 | return (int32_t) 0; |
| 154 | } |
| 155 | |
| 156 | AWT_LOCK(); |
| 157 | |
| 158 | /* Get the peer of the target component */ |
| 159 | peer = (*env)->GetObjectField(env, target, componentIDs.peer); |
| 160 | if (JNU_IsNull(env, peer)) { |
| 161 | #ifdef DEBUG |
| 162 | fprintf(stderr, "Component peer is NULL\n"); |
| 163 | #endif |
| 164 | AWT_UNLOCK(); |
| 165 | return (int32_t) 0; |
| 166 | } |
| 167 | #ifndef XAWT |
| 168 | adata = getGraphicsConfigFromComponentPeer(env, peer); |
| 169 | #else |
| 170 | /* GraphicsConfiguration object of MComponentPeer */ |
| 171 | gc_object = (*env)->GetObjectField(env, peer, graphicsConfigID); |
| 172 | |
| 173 | if (gc_object != NULL) { |
| 174 | adata = (AwtGraphicsConfigDataPtr) |
| 175 | JNU_GetLongFieldAsPtr(env, gc_object, |
| 176 | x11GraphicsConfigIDs.aData); |
| 177 | } else { |
| 178 | adata = getDefaultConfig(DefaultScreen(awt_display)); |
| 179 | } |
| 180 | #endif |
| 181 | |
| 182 | result = adata->AwtColorMatch(r, g, b, adata); |
| 183 | AWT_UNLOCK(); |
| 184 | return result; |
| 185 | } |
| 186 | |
| 187 | /* |
| 188 | * Get the drawing surface info. |
| 189 | * The value returned may be cached, but the values may change if |
| 190 | * additional calls to Lock() or Unlock() are made. |
| 191 | * Lock() must be called before this can return a valid value. |
| 192 | * Returns NULL if an error has occurred. |
| 193 | * When finished with the returned value, FreeDrawingSurfaceInfo must be |
| 194 | * called. |
| 195 | */ |
| 196 | JNIEXPORT JAWT_DrawingSurfaceInfo* JNICALL |
| 197 | awt_DrawingSurface_GetDrawingSurfaceInfo(JAWT_DrawingSurface* ds) |
| 198 | { |
| 199 | JNIEnv* env; |
| 200 | jobject target, peer; |
| 201 | jclass componentClass; |
| 202 | JAWT_X11DrawingSurfaceInfo* px; |
| 203 | JAWT_DrawingSurfaceInfo* p; |
| 204 | #ifndef XAWT |
| 205 | struct ComponentData *cdata; |
| 206 | #endif |
| 207 | XWindowAttributes attrs; |
| 208 | |
| 209 | if (ds == NULL) { |
| 210 | #ifdef DEBUG |
| 211 | fprintf(stderr, "Drawing Surface is NULL\n"); |
| 212 | #endif |
| 213 | return NULL; |
| 214 | } |
| 215 | |
| 216 | env = ds->env; |
| 217 | target = ds->target; |
| 218 | |
| 219 | /* Make sure the target is a java.awt.Component */ |
| 220 | componentClass = (*env)->FindClass(env, "java/awt/Component"); |
| 221 | if (!(*env)->IsInstanceOf(env, target, componentClass)) { |
| 222 | #ifdef DEBUG |
| 223 | fprintf(stderr, "DrawingSurface target must be a component\n"); |
| 224 | #endif |
| 225 | return NULL; |
| 226 | } |
| 227 | |
| 228 | if (!awtLockInited) { |
| 229 | return NULL; |
| 230 | } |
| 231 | |
| 232 | AWT_LOCK(); |
| 233 | |
| 234 | /* Get the peer of the target component */ |
| 235 | peer = (*env)->GetObjectField(env, target, componentIDs.peer); |
| 236 | if (JNU_IsNull(env, peer)) { |
| 237 | #ifdef DEBUG |
| 238 | fprintf(stderr, "Component peer is NULL\n"); |
| 239 | #endif |
| 240 | AWT_UNLOCK(); |
| 241 | return NULL; |
| 242 | } |
| 243 | |
| 244 | #ifndef XAWT |
| 245 | /* Get the component data from the peer */ |
| 246 | cdata = (struct ComponentData *) |
| 247 | JNU_GetLongFieldAsPtr(env, peer, mComponentPeerIDs.pData); |
| 248 | if (cdata == NULL) { |
| 249 | #ifdef DEBUG |
| 250 | fprintf(stderr, "Component data is NULL\n"); |
| 251 | #endif |
| 252 | AWT_UNLOCK(); |
| 253 | return NULL; |
| 254 | } |
| 255 | #endif |
| 256 | |
| 257 | AWT_UNLOCK(); |
| 258 | |
| 259 | /* Allocate platform-specific data */ |
| 260 | px = (JAWT_X11DrawingSurfaceInfo*) |
| 261 | malloc(sizeof(JAWT_X11DrawingSurfaceInfo)); |
| 262 | |
| 263 | /* Set drawable and display */ |
| 264 | #ifndef XAWT |
| 265 | px->drawable = XtWindow(cdata->widget); |
| 266 | #else |
| 267 | px->drawable = JNU_GetLongFieldAsPtr(env, peer, windowID); |
| 268 | #endif |
| 269 | px->display = awt_display; |
| 270 | |
| 271 | /* Get window attributes to set other values */ |
| 272 | XGetWindowAttributes(awt_display, (Window)(px->drawable), &attrs); |
| 273 | |
| 274 | /* Set the other values */ |
| 275 | px->visualID = XVisualIDFromVisual(attrs.visual); |
| 276 | px->colormapID = attrs.colormap; |
| 277 | px->depth = attrs.depth; |
| 278 | px->GetAWTColor = awt_GetColor; |
| 279 | |
| 280 | /* Allocate and initialize platform-independent data */ |
| 281 | p = (JAWT_DrawingSurfaceInfo*)malloc(sizeof(JAWT_DrawingSurfaceInfo)); |
| 282 | p->platformInfo = px; |
| 283 | p->ds = ds; |
| 284 | p->bounds.x = (*env)->GetIntField(env, target, componentIDs.x); |
| 285 | p->bounds.y = (*env)->GetIntField(env, target, componentIDs.y); |
| 286 | p->bounds.width = (*env)->GetIntField(env, target, componentIDs.width); |
| 287 | p->bounds.height = (*env)->GetIntField(env, target, componentIDs.height); |
| 288 | p->clipSize = 1; |
| 289 | p->clip = &(p->bounds); |
| 290 | |
| 291 | /* Return our new structure */ |
| 292 | return p; |
| 293 | } |
| 294 | |
| 295 | /* |
| 296 | * Free the drawing surface info. |
| 297 | */ |
| 298 | JNIEXPORT void JNICALL |
| 299 | awt_DrawingSurface_FreeDrawingSurfaceInfo(JAWT_DrawingSurfaceInfo* dsi) |
| 300 | { |
| 301 | if (dsi == NULL ) { |
| 302 | #ifdef DEBUG |
| 303 | fprintf(stderr, "Drawing Surface Info is NULL\n"); |
| 304 | #endif |
| 305 | } |
| 306 | free(dsi->platformInfo); |
| 307 | free(dsi); |
| 308 | } |
| 309 | |
| 310 | /* |
| 311 | * Unlock the drawing surface of the target component for native rendering. |
| 312 | */ |
| 313 | JNIEXPORT void JNICALL awt_DrawingSurface_Unlock(JAWT_DrawingSurface* ds) |
| 314 | { |
| 315 | JNIEnv* env; |
| 316 | if (ds == NULL) { |
| 317 | #ifdef DEBUG |
| 318 | fprintf(stderr, "Drawing Surface is NULL\n"); |
| 319 | #endif |
| 320 | return; |
| 321 | } |
| 322 | env = ds->env; |
| 323 | AWT_FLUSH_UNLOCK(); |
| 324 | } |
| 325 | |
| 326 | JNIEXPORT JAWT_DrawingSurface* JNICALL |
| 327 | awt_GetDrawingSurface(JNIEnv* env, jobject target) |
| 328 | { |
| 329 | jclass componentClass; |
| 330 | JAWT_DrawingSurface* p; |
| 331 | |
| 332 | /* Make sure the target component is a java.awt.Component */ |
| 333 | componentClass = (*env)->FindClass(env, "java/awt/Component"); |
| 334 | if (!(*env)->IsInstanceOf(env, target, componentClass)) { |
| 335 | #ifdef DEBUG |
| 336 | fprintf(stderr, |
| 337 | "GetDrawingSurface target must be a java.awt.Component\n"); |
| 338 | #endif |
| 339 | return NULL; |
| 340 | } |
| 341 | |
| 342 | p = (JAWT_DrawingSurface*)malloc(sizeof(JAWT_DrawingSurface)); |
| 343 | p->env = env; |
| 344 | p->target = (*env)->NewGlobalRef(env, target); |
| 345 | p->Lock = awt_DrawingSurface_Lock; |
| 346 | p->GetDrawingSurfaceInfo = awt_DrawingSurface_GetDrawingSurfaceInfo; |
| 347 | p->FreeDrawingSurfaceInfo = awt_DrawingSurface_FreeDrawingSurfaceInfo; |
| 348 | p->Unlock = awt_DrawingSurface_Unlock; |
| 349 | return p; |
| 350 | } |
| 351 | |
| 352 | JNIEXPORT void JNICALL |
| 353 | awt_FreeDrawingSurface(JAWT_DrawingSurface* ds) |
| 354 | { |
| 355 | JNIEnv* env; |
| 356 | |
| 357 | if (ds == NULL ) { |
| 358 | #ifdef DEBUG |
| 359 | fprintf(stderr, "Drawing Surface is NULL\n"); |
| 360 | #endif |
| 361 | return; |
| 362 | } |
| 363 | env = ds->env; |
| 364 | (*env)->DeleteGlobalRef(env, ds->target); |
| 365 | free(ds); |
| 366 | } |
| 367 | |
| 368 | JNIEXPORT void JNICALL |
| 369 | awt_Lock(JNIEnv* env) |
| 370 | { |
| 371 | if (awtLockInited) { |
| 372 | AWT_LOCK(); |
| 373 | } |
| 374 | } |
| 375 | |
| 376 | JNIEXPORT void JNICALL |
| 377 | awt_Unlock(JNIEnv* env) |
| 378 | { |
| 379 | if (awtLockInited) { |
| 380 | AWT_FLUSH_UNLOCK(); |
| 381 | } |
| 382 | } |
| 383 | |
| 384 | JNIEXPORT jobject JNICALL |
| 385 | awt_GetComponent(JNIEnv* env, void* platformInfo) |
| 386 | { |
| 387 | Window window = (Window)platformInfo; |
| 388 | Widget widget = NULL; |
| 389 | jobject peer = NULL; |
| 390 | jobject target = NULL; |
| 391 | |
| 392 | AWT_LOCK(); |
| 393 | |
| 394 | #ifndef XAWT |
| 395 | if (window != None) { |
| 396 | widget = XtWindowToWidget(awt_display, window); |
| 397 | } |
| 398 | |
| 399 | if (widget != NULL) { |
| 400 | XtVaGetValues (widget, XmNuserData, &peer, NULL); |
| 401 | } |
| 402 | |
| 403 | if (peer != NULL) { |
| 404 | target = (*env)->GetObjectField(env, peer, mComponentPeerIDs.target); |
| 405 | } |
| 406 | #else |
| 407 | target = (*env)->GetObjectField(env, peer, targetID); |
| 408 | #endif |
| 409 | |
| 410 | if (target == NULL) { |
| 411 | JNU_ThrowNullPointerException(env, "NullPointerException"); |
| 412 | AWT_UNLOCK(); |
| 413 | return (jobject)NULL; |
| 414 | } |
| 415 | |
| 416 | |
| 417 | AWT_UNLOCK(); |
| 418 | |
| 419 | return target; |
| 420 | } |