void AwtCheckbox::_SetLabel(void *param)
{
JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
SetLabelStruct *sls = (SetLabelStruct *)param;
jobject checkbox = sls->checkbox;
jstring label = sls->label;
int badAlloc = 0;
AwtCheckbox *c = NULL;
PDATA pData;
JNI_CHECK_PEER_GOTO(checkbox, done);
c = (AwtCheckbox *)pData;
if (::IsWindow(c->GetHWnd()))
{
LPCTSTR labelStr = NULL;
// By convension null label means empty string
if (label == NULL)
{
labelStr = TEXT("");
}
else
{
labelStr = JNU_GetStringPlatformChars(env, label, JNI_FALSE);
}
if (labelStr == NULL)
{
badAlloc = 1;
}
else
{
c->SetText(labelStr);
c->VerifyState();
if (label != NULL) {
JNU_ReleaseStringPlatformChars(env, label, labelStr);
}
}
}
done:
env->DeleteGlobalRef(checkbox);
if (label != NULL)
{
env->DeleteGlobalRef(label);
}
delete sls;
if (badAlloc) {
throw std::bad_alloc();
}
}
// 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;
}
void AwtCheckbox::_SetState(void *param)
{
JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
SetStateStruct *sss = (SetStateStruct *)param;
jobject checkbox = sss->checkbox;
jboolean state = sss->state;
AwtCheckbox *c = NULL;
PDATA pData;
JNI_CHECK_PEER_GOTO(checkbox, done);
c = (AwtCheckbox *)pData;
if (::IsWindow(c->GetHWnd()))
{
/*
* when multifont and group checkbox receive setState native
* method, it must be redraw to display correct check mark
*/
jobject target = env->GetObjectField(checkbox, AwtObject::targetID);
jobject group = env->GetObjectField(target, AwtCheckbox::groupID);
HWND hWnd = c->GetHWnd();
if (group != NULL) {
RECT rect;
VERIFY(::GetWindowRect(hWnd, &rect));
VERIFY(::ScreenToClient(hWnd, (LPPOINT)&rect));
VERIFY(::ScreenToClient(hWnd, ((LPPOINT)&rect) + 1));
VERIFY(::InvalidateRect(hWnd, &rect,TRUE));
VERIFY(::UpdateWindow(hWnd));
} else {
c->SendMessage(BM_SETCHECK, (WPARAM)(state ? BST_CHECKED : BST_UNCHECKED));
VERIFY(::InvalidateRect(hWnd, NULL, FALSE));
}
c->VerifyState();
env->DeleteLocalRef(target);
env->DeleteLocalRef(group);
}
done:
env->DeleteGlobalRef(checkbox);
delete sss;
}
void AwtCheckbox::_SetCheckboxGroup(void *param)
{
JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
jobject *jos = (jobject *)param;
jobject checkbox = jos[0];
jobject group = jos[1];
AwtCheckbox *c = NULL;
PDATA pData;
JNI_CHECK_PEER_GOTO(checkbox, done);
c = (AwtCheckbox *)pData;
if (::IsWindow(c->GetHWnd()))
{
/*
#ifdef DEBUG
if (group != NULL) {
DASSERT(IsInstanceOf((HObject*)group, "java/awt/CheckboxGroup"));
}
#endif
*/
long style = c->GetStyle();
if (group == NULL) {
style = style & ~BS_AUTORADIOBUTTON;
style = style | BS_AUTOCHECKBOX;
} else {
style = style & ~BS_AUTOCHECKBOX;
style = style | BS_AUTORADIOBUTTON;
}
c->SetStyle(style);
c->SendMessage(BM_SETSTYLE, (WPARAM)BS_OWNERDRAW, (LPARAM)TRUE);
c->VerifyState();
}
done:
env->DeleteGlobalRef(checkbox);
if (group != NULL) {
env->DeleteGlobalRef(group);
}
delete[] jos;
}
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;
}