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::_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();
}
}
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;
}