// Create a new AwtCheckbox object and window.  
AwtCheckbox* AwtCheckbox::Create(jobject self,
                                 jobject hParent)
{
    JNIEnv* env; 
    /* associate JNIEnv with the current thread */
    if (JVM -> AttachCurrentThread((void**) &env, 0) != 0) {
       return NULL;
    }

    CHECK_NULL_RETURN(hParent, "null hParent");
    AwtCanvas* parent = (AwtCanvas*) env->GetIntField(hParent, 
                  WCachedIDs.PPCObjectPeer_pDataFID); 
    CHECK_NULL_RETURN(parent, "null parent");

    jobject target = 
       env -> GetObjectField(self, WCachedIDs.PPCObjectPeer_targetFID);
    CHECK_NULL_RETURN(target, "null target");

    AwtCheckbox* checkbox = new AwtCheckbox();
    CHECK_NULL_RETURN(checkbox, "AwtCheckbox() failed");

    DWORD style = WS_CHILD | WS_CLIPSIBLINGS | BS_OWNERDRAW;

    jstring label = (jstring)env->CallObjectMethod(target,
                                  WCachedIDs.java_awt_Checkbox_getLabelMID); 

    TCHAR *sb;
    if (label == NULL) {
       sb = TEXT("");
    } else {
       JavaStringBuffer sb(env, label);
    }

    checkbox->CreateHWnd(sb, style, 0,
                  (int)env->CallIntMethod(target, 
                            WCachedIDs.java_awt_Component_getXMID),
                  (int)env->CallIntMethod(target,
                            WCachedIDs.java_awt_Component_getYMID),
                  (int)env->CallIntMethod(target,
                            WCachedIDs.java_awt_Component_getWidthMID),
                  (int)env->CallIntMethod(target, 
                            WCachedIDs.java_awt_Component_getHeightMID),
                  parent->GetHWnd(),
                  (HMENU)parent->CreateControlID(),
                  ::GetSysColor(COLOR_WINDOWTEXT),
                  ::GetSysColor(COLOR_BTNFACE),
                  self
                  );

    return checkbox;
}
Exemplo n.º 2
0
AwtCheckbox* AwtCheckbox::Create(jobject peer, jobject parent)
{
    JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);

    jstring label = NULL;
    jobject target = NULL;
    AwtCheckbox *checkbox = NULL;

    try {
        if (env->EnsureLocalCapacity(2) < 0) {
            return NULL;
        }

        AwtComponent* awtParent;
        JNI_CHECK_NULL_GOTO(parent, "null parent", done);

        awtParent = (AwtComponent*)JNI_GET_PDATA(parent);
        JNI_CHECK_NULL_GOTO(awtParent, "null awtParent", done);

        target = env->GetObjectField(peer, AwtObject::targetID);
        JNI_CHECK_NULL_GOTO(target, "null target", done);

        checkbox = new AwtCheckbox();

        {
            DWORD style = WS_CHILD | WS_CLIPSIBLINGS | BS_OWNERDRAW;
            LPCWSTR defaultLabelStr = L"";
            LPCWSTR labelStr = defaultLabelStr;
            DWORD exStyle = 0;

            if (GetRTL()) {
                exStyle |= WS_EX_RIGHT;
                if (GetRTLReadingOrder())
                    exStyle |= WS_EX_RTLREADING;
            }

            label = (jstring)env->GetObjectField(target, AwtCheckbox::labelID);
            if (label != NULL) {
                labelStr = JNU_GetStringPlatformChars(env, label, 0);
            }
            if (labelStr != 0) {
                jint x = env->GetIntField(target, AwtComponent::xID);
                jint y = env->GetIntField(target, AwtComponent::yID);
                jint width = env->GetIntField(target, AwtComponent::widthID);
                jint height = env->GetIntField(target, AwtComponent::heightID);
                checkbox->CreateHWnd(env, labelStr, style, exStyle,
                                     x, y, width, height,
                                     awtParent->GetHWnd(),
                                     reinterpret_cast<HMENU>(static_cast<INT_PTR>(
                         awtParent->CreateControlID())),
                                     ::GetSysColor(COLOR_WINDOWTEXT),
                                     ::GetSysColor(COLOR_BTNFACE),
                                     peer);

                if (labelStr != defaultLabelStr) {
                    JNU_ReleaseStringPlatformChars(env, label, labelStr);
                }
            } else {
                throw std::bad_alloc();
            }
        }
    } catch (...) {
        env->DeleteLocalRef(label);
        env->DeleteLocalRef(target);
        throw;
    }

done:
    env->DeleteLocalRef(label);
    env->DeleteLocalRef(target);

    return checkbox;
}