| /* |
| * Copyright (c) 1996, 2008, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| #define _JNI_IMPLEMENTATION_ |
| |
| #include "awt.h" |
| #include "awt_DrawingSurface.h" |
| #include "awt_Component.h" |
| |
| jclass jawtVImgClass; |
| jclass jawtComponentClass; |
| jfieldID jawtPDataID; |
| jfieldID jawtSDataID; |
| jfieldID jawtSMgrID; |
| |
| |
| /* DSI */ |
| |
| jint JAWTDrawingSurfaceInfo::Init(JAWTDrawingSurface* parent) |
| { |
| TRY; |
| |
| JNIEnv* env = parent->env; |
| jobject target = parent->target; |
| if (JNU_IsNull(env, target)) { |
| DTRACE_PRINTLN("NULL target"); |
| return JAWT_LOCK_ERROR; |
| } |
| HWND newHwnd = AwtComponent::GetHWnd(env, target); |
| if (!::IsWindow(newHwnd)) { |
| DTRACE_PRINTLN("Bad HWND"); |
| return JAWT_LOCK_ERROR; |
| } |
| jint retval = 0; |
| platformInfo = this; |
| ds = parent; |
| bounds.x = env->GetIntField(target, AwtComponent::xID); |
| bounds.y = env->GetIntField(target, AwtComponent::yID); |
| bounds.width = env->GetIntField(target, AwtComponent::widthID); |
| bounds.height = env->GetIntField(target, AwtComponent::heightID); |
| if (hwnd != newHwnd) { |
| if (hwnd != NULL) { |
| ::ReleaseDC(hwnd, hdc); |
| retval = JAWT_LOCK_SURFACE_CHANGED; |
| } |
| hwnd = newHwnd; |
| hdc = ::GetDCEx(hwnd, NULL, DCX_CACHE|DCX_CLIPCHILDREN|DCX_CLIPSIBLINGS); |
| } |
| clipSize = 1; |
| clip = &bounds; |
| int screen = AwtWin32GraphicsDevice::DeviceIndexForWindow(hwnd); |
| hpalette = AwtWin32GraphicsDevice::GetPalette(screen); |
| |
| return retval; |
| |
| CATCH_BAD_ALLOC_RET(JAWT_LOCK_ERROR); |
| } |
| |
| jint JAWTOffscreenDrawingSurfaceInfo::Init(JAWTOffscreenDrawingSurface* parent) |
| { |
| TRY; |
| |
| return JAWT_LOCK_ERROR; |
| |
| CATCH_BAD_ALLOC_RET(JAWT_LOCK_ERROR); |
| } |
| |
| /* Drawing Surface */ |
| |
| JAWTDrawingSurface::JAWTDrawingSurface(JNIEnv* pEnv, jobject rTarget) |
| { |
| TRY_NO_VERIFY; |
| |
| env = pEnv; |
| target = env->NewGlobalRef(rTarget); |
| Lock = LockSurface; |
| GetDrawingSurfaceInfo = GetDSI; |
| FreeDrawingSurfaceInfo = FreeDSI; |
| Unlock = UnlockSurface; |
| info.hwnd = NULL; |
| info.hdc = NULL; |
| info.hpalette = NULL; |
| |
| CATCH_BAD_ALLOC; |
| } |
| |
| JAWTDrawingSurface::~JAWTDrawingSurface() |
| { |
| TRY_NO_VERIFY; |
| |
| env->DeleteGlobalRef(target); |
| |
| CATCH_BAD_ALLOC; |
| } |
| |
| JAWT_DrawingSurfaceInfo* JNICALL JAWTDrawingSurface::GetDSI |
| (JAWT_DrawingSurface* ds) |
| { |
| TRY; |
| |
| if (ds == NULL) { |
| DTRACE_PRINTLN("Drawing Surface is NULL"); |
| return NULL; |
| } |
| JAWTDrawingSurface* pds = static_cast<JAWTDrawingSurface*>(ds); |
| return &(pds->info); |
| |
| CATCH_BAD_ALLOC_RET(NULL); |
| } |
| |
| void JNICALL JAWTDrawingSurface::FreeDSI |
| (JAWT_DrawingSurfaceInfo* dsi) |
| { |
| TRY_NO_VERIFY; |
| |
| DASSERTMSG(dsi != NULL, "Drawing Surface Info is NULL\n"); |
| |
| JAWTDrawingSurfaceInfo* jdsi = static_cast<JAWTDrawingSurfaceInfo*>(dsi); |
| |
| ::ReleaseDC(jdsi->hwnd, jdsi->hdc); |
| |
| CATCH_BAD_ALLOC; |
| } |
| |
| jint JNICALL JAWTDrawingSurface::LockSurface |
| (JAWT_DrawingSurface* ds) |
| { |
| TRY; |
| |
| if (ds == NULL) { |
| DTRACE_PRINTLN("Drawing Surface is NULL"); |
| return JAWT_LOCK_ERROR; |
| } |
| JAWTDrawingSurface* pds = static_cast<JAWTDrawingSurface*>(ds); |
| jint val = pds->info.Init(pds); |
| if ((val & JAWT_LOCK_ERROR) != 0) { |
| return val; |
| } |
| val = AwtComponent::GetDrawState(pds->info.hwnd); |
| AwtComponent::SetDrawState(pds->info.hwnd, 0); |
| return val; |
| |
| CATCH_BAD_ALLOC_RET(JAWT_LOCK_ERROR); |
| } |
| |
| void JNICALL JAWTDrawingSurface::UnlockSurface |
| (JAWT_DrawingSurface* ds) |
| { |
| TRY_NO_VERIFY; |
| |
| if (ds == NULL) { |
| DTRACE_PRINTLN("Drawing Surface is NULL"); |
| return; |
| } |
| JAWTDrawingSurface* pds = static_cast<JAWTDrawingSurface*>(ds); |
| |
| CATCH_BAD_ALLOC; |
| } |
| |
| JAWTOffscreenDrawingSurface::JAWTOffscreenDrawingSurface(JNIEnv* pEnv, |
| jobject rTarget) |
| { |
| TRY_NO_VERIFY; |
| env = pEnv; |
| target = env->NewGlobalRef(rTarget); |
| Lock = LockSurface; |
| GetDrawingSurfaceInfo = GetDSI; |
| FreeDrawingSurfaceInfo = FreeDSI; |
| Unlock = UnlockSurface; |
| info.dxSurface = NULL; |
| info.dx7Surface = NULL; |
| |
| CATCH_BAD_ALLOC; |
| } |
| |
| JAWTOffscreenDrawingSurface::~JAWTOffscreenDrawingSurface() |
| { |
| env->DeleteGlobalRef(target); |
| } |
| |
| JAWT_DrawingSurfaceInfo* JNICALL JAWTOffscreenDrawingSurface::GetDSI |
| (JAWT_DrawingSurface* ds) |
| { |
| TRY; |
| |
| if (ds == NULL) { |
| DTRACE_PRINTLN("Drawing Surface is NULL"); |
| return NULL; |
| } |
| JAWTOffscreenDrawingSurface* pds = |
| static_cast<JAWTOffscreenDrawingSurface*>(ds); |
| return &(pds->info); |
| |
| CATCH_BAD_ALLOC_RET(NULL); |
| } |
| |
| void JNICALL JAWTOffscreenDrawingSurface::FreeDSI |
| (JAWT_DrawingSurfaceInfo* dsi) |
| { |
| } |
| |
| jint JNICALL JAWTOffscreenDrawingSurface::LockSurface |
| (JAWT_DrawingSurface* ds) |
| { |
| return JAWT_LOCK_ERROR; |
| } |
| |
| void JNICALL JAWTOffscreenDrawingSurface::UnlockSurface |
| (JAWT_DrawingSurface* ds) |
| { |
| } |
| |
| /* C exports */ |
| |
| extern "C" JNIEXPORT JAWT_DrawingSurface* JNICALL DSGetDrawingSurface |
| (JNIEnv* env, jobject target) |
| { |
| TRY; |
| |
| // See if the target component is a java.awt.Component |
| if (env->IsInstanceOf(target, jawtComponentClass)) { |
| return new JAWTDrawingSurface(env, target); |
| } |
| |
| DTRACE_PRINTLN("GetDrawingSurface target must be a Component"); |
| return NULL; |
| |
| CATCH_BAD_ALLOC_RET(NULL); |
| } |
| |
| extern "C" JNIEXPORT void JNICALL DSFreeDrawingSurface |
| (JAWT_DrawingSurface* ds) |
| { |
| TRY_NO_VERIFY; |
| |
| if (ds == NULL) { |
| DTRACE_PRINTLN("Drawing Surface is NULL"); |
| } |
| delete static_cast<JAWTDrawingSurface*>(ds); |
| |
| CATCH_BAD_ALLOC; |
| } |
| |
| extern "C" JNIEXPORT void JNICALL DSLockAWT(JNIEnv* env) |
| { |
| // Do nothing on Windows |
| } |
| |
| extern "C" JNIEXPORT void JNICALL DSUnlockAWT(JNIEnv* env) |
| { |
| // Do nothing on Windows |
| } |