bool FormMgr::CookEvent(Event *pevt)
{
pevt->idf = 0;
switch (pevt->eType) {
case penHoverEvent:
case penUpEvent:
case penDownEvent:
case penMoveEvent:
case penUpEvent2:
case penDownEvent2:
case penMoveEvent2:
case penHoldEvent:
{
// If no capture, process as usual
if (m_idfCapture == 0) {
return CookPenEvent(pevt);
}
// Mouse is captured. If captureed but there is a new form on top,
// gracefully release the capture (can happen if form shows while
// mouse is captured)
if (!CookPenEvent(pevt))
return false;
for (int n = m_cfrm - 1; n >= 0; n--) {
Form *pfrm = m_apfrm[n];
if ((pfrm->GetFlags() & (kfFrmDoModal | kfFrmVisible)) == (kfFrmDoModal | kfFrmVisible)) {
if (pfrm->m_idf != pevt->idf) {
pevt->dw = 1;
pevt->eType = penUpEvent;
m_idfCapture = 0;
m_cCaptureDowns = 0;
}
}
break;
}
return true;
}
break;
case keyDownEvent:
return CookKeyEvent(pevt);
}
return false;
}
bool FormMgr::CookPenEvent(Event *pevt)
{
// Send the input to the capturing form. Auto-release if pen up,
// auto-capture if pen down.
if (m_idfCapture != 0) {
pevt->idf = m_idfCapture;
if (pevt->eType == penDownEvent || pevt->eType == penDownEvent2) {
m_cCaptureDowns++;
}
if (pevt->eType == penUpEvent || pevt->eType == penUpEvent2) {
m_cCaptureDowns--;
}
if (m_cCaptureDowns <= 0) {
m_cCaptureDowns = 0;
m_idfCapture = 0;
}
return true;
} else {
// Ask the topmost form first if it wants this pen input.
// All coords are global.
word idf = 0;
for (int n = m_cfrm - 1; n >= 0; n--) {
Form *pfrm = m_apfrm[n];
if (pfrm->OnHitTest(pevt)) {
idf = pfrm->GetId();
break;
}
// If the top-most form is modal, don't pass the event on
// to any lower forms.
if (pfrm->GetFlags() & kfFrmDoModal) {
pevt->idf = 0;
return true;
}
}
pevt->idf = idf;
if (pevt->eType == penDownEvent || pevt->eType == penDownEvent2) {
m_cCaptureDowns = 1;
m_idfCapture = idf;
}
return pevt->idf != 0;
}
}
void FormMgr::CalcOpaqueRect(Form *pfrmStop, Rect *prcOpaqueStart, Rect *prcResult)
{
// Start from the top and expand the opaque rect when a portion lies safely inside
// the new rectangle.
if (prcOpaqueStart == NULL) {
prcResult->SetEmpty();
} else {
*prcResult = *prcOpaqueStart;
}
for (int n = m_cfrm - 1; n >= 0; n--) {
Form *pfrm = m_apfrm[n];
if (pfrm == pfrmStop)
break;
word wf = pfrm->GetFlags();
if (wf & kfFrmTranslucent)
continue;
if (!(wf & kfFrmVisible))
continue;
prcResult->Add(prcResult, &pfrm->m_rc);
}
}