MsgRouting
AwtCheckbox::OwnerDrawItem(UINT /*ctrlId*/, DRAWITEMSTRUCT& drawInfo)
{
JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
if (env->EnsureLocalCapacity(4) < 0) {
return mrConsume;
}
jobject self = GetPeer(env);
jobject target = env->GetObjectField(self, AwtObject::targetID);
HDC hDC = drawInfo.hDC;
RECT rect = drawInfo.rcItem;
int checkSize;
UINT nState;
SIZE size;
jobject font = GET_FONT(target, self);
jstring str = (jstring)env->GetObjectField(target, AwtCheckbox::labelID);
size = AwtFont::getMFStringSize(hDC, font, str);
jobject group = env->GetObjectField(target, AwtCheckbox::groupID);
if (group != NULL)
nState = DFCS_BUTTONRADIO;
else
nState = DFCS_BUTTONCHECK;
if (GetState())
nState |= DFCS_CHECKED;
else
nState &= ~DFCS_CHECKED;
if (drawInfo.itemState & ODS_SELECTED)
nState |= DFCS_PUSHED;
if (drawInfo.itemAction & ODA_DRAWENTIRE) {
VERIFY(::FillRect (hDC, &rect, GetBackgroundBrush()));
}
/* draw check mark */
checkSize = GetCheckSize();
RECT boxRect;
boxRect.left = (GetRTL()) ? rect.right - checkSize : rect.left;
boxRect.top = (rect.bottom - rect.top - checkSize)/2;
boxRect.right = boxRect.left + checkSize;
boxRect.bottom = boxRect.top + checkSize;
::DrawFrameControl(hDC, &boxRect, DFC_BUTTON, nState);
/*
* draw string
*
* 4 is a heuristic number
*/
rect.left = rect.left + checkSize + checkSize/4;
if (drawInfo.itemAction & ODA_DRAWENTIRE) {
BOOL bEnabled = isEnabled();
int x = (GetRTL()) ? rect.right - (checkSize + checkSize / 4 + size.cx)
: rect.left;
int y = (rect.top + rect.bottom - size.cy) / 2;
if (bEnabled) {
AwtComponent::DrawWindowText(hDC, font, str, x, y);
} else {
AwtComponent::DrawGrayText(hDC, font, str, x, y);
}
}
/* Draw focus rect */
RECT focusRect;
const int margin = 2; /* 2 is a heuristic number */
focusRect.left = (GetRTL()) ? rect.right - checkSize - checkSize / 4 -
2 * margin - size.cx
: rect.left - margin;
focusRect.top = (rect.top+rect.bottom-size.cy)/2;
focusRect.right = (GetRTL()) ? rect.right - checkSize - checkSize / 4 +
margin
: focusRect.left + size.cx + 2 * margin;
focusRect.bottom = focusRect.top + size.cy;
/* draw focus rect */
if ((drawInfo.itemState & ODS_FOCUS) &&
((drawInfo.itemAction & ODA_FOCUS)||
(drawInfo.itemAction &ODA_DRAWENTIRE))) {
VERIFY(::DrawFocusRect(hDC, &focusRect));
}
/* erase focus rect */
else if (!(drawInfo.itemState & ODS_FOCUS) &&
(drawInfo.itemAction & ODA_FOCUS)) {
VERIFY(::DrawFocusRect(hDC, &focusRect));
}
/* Notify any subclasses */
rect = drawInfo.rcItem;
DoCallback("handlePaint", "(IIII)V", rect.left, rect.top,
rect.right-rect.left, rect.bottom-rect.top);
env->DeleteLocalRef(target);
env->DeleteLocalRef(font);
env->DeleteLocalRef(str);
env->DeleteLocalRef(group);
return mrConsume;
}
MsgRouting
AwtCheckbox::WmDrawItem(UINT /*ctrlId*/, DRAWITEMSTRUCT far& drawInfo)
{
JNIEnv *env;
/* associate JNIEnv with the current thread */
if (JVM -> AttachCurrentThread((void**) &env, 0) != 0) {
return mrDoDefault; // CHECK: is this the right return type??
}
CriticalSection::Lock l(GetLock());
jobject self = GetPeer();
jobject target =
env -> GetObjectField(self, WCachedIDs.PPCObjectPeer_targetFID);
HDC hDC = drawInfo.hDC;
RECT rect = drawInfo.rcItem;
int checkSize;
UINT nState;
SIZE size;
jobject hJavaFont;
jstring hJavaString;
hJavaFont = GET_FONT(target);
hJavaString = (jstring)env->CallObjectMethod(target,
WCachedIDs.java_awt_Checkbox_getLabelMID);
size = AwtFont::getMFStringSize(hDC,hJavaFont,hJavaString);
if (env->CallObjectMethod(target, WCachedIDs.java_awt_Checkbox_getCheckboxGroupMID) != NULL)
nState = DFCS_BUTTONRADIO;
else
nState = DFCS_BUTTONCHECK;
if (GetState())
nState |= DFCS_CHECKED;
else
nState &= ~DFCS_CHECKED;
if (drawInfo.itemState & ODS_SELECTED)
nState |= DFCS_PUSHED;
if (drawInfo.itemAction & ODA_DRAWENTIRE) {
VERIFY(::FillRect (hDC, &rect, GetBackgroundBrush()));
}
//draw check mark
checkSize = GetCheckSize();
RECT boxRect;
boxRect.left = rect.left;
boxRect.top = (rect.bottom - rect.top - checkSize)/2;
boxRect.right = boxRect.left + checkSize;
boxRect.bottom = boxRect.top + checkSize;
::DrawFrameControl(hDC, &boxRect, DFC_BUTTON, nState);
//draw string
rect.left = rect.left + checkSize + checkSize/4; //4 is a heuristic number
if (drawInfo.itemAction & ODA_DRAWENTIRE) {
BOOL bEnabled = isEnabled();
int x = rect.left;
int y = (rect.top+rect.bottom-size.cy)/2;
if (bEnabled) {
AwtComponent::DrawWindowText(hDC, hJavaFont, hJavaString, x, y);
} else {
AwtComponent::DrawGrayText(hDC, hJavaFont, hJavaString, x, y);
}
}
//Draw focus rect
RECT focusRect;
const int margin = 2; // 2 is a heuristic number
focusRect.left = rect.left - margin;
focusRect.top = (rect.top+rect.bottom-size.cy)/2;
focusRect.right = focusRect.left + size.cx + 2*margin;
focusRect.bottom = focusRect.top + size.cy;
// draw focus rect
if ((drawInfo.itemState & ODS_FOCUS) &&
((drawInfo.itemAction & ODA_FOCUS)||
(drawInfo.itemAction &ODA_DRAWENTIRE))) {
VERIFY(::DrawFocusRect(hDC, &focusRect));
}
// erase focus rect
else if (!(drawInfo.itemState & ODS_FOCUS) &&
(drawInfo.itemAction & ODA_FOCUS)) {
VERIFY(::DrawFocusRect(hDC, &focusRect));
}
// Notify any subclasses
rect = drawInfo.rcItem;
env -> CallVoidMethod(GetPeer(),
WCachedIDs.PPCComponentPeer_handlePaintMID,
rect.left, rect.top,
rect.right-rect.left, rect.bottom-rect.top);
return mrConsume;
}