IFWL_Widget* CFWL_WidgetMgr::GetWidgetAtPoint(IFWL_Widget* parent,
FX_FLOAT x,
FX_FLOAT y) {
if (!parent)
return nullptr;
FX_FLOAT x1;
FX_FLOAT y1;
IFWL_Widget* child = GetLastChildWidget(parent);
while (child) {
if ((child->GetStates() & FWL_WGTSTATE_Invisible) == 0) {
x1 = x;
y1 = y;
CFX_Matrix matrixOnParent;
child->GetMatrix(matrixOnParent);
CFX_Matrix m;
m.SetIdentity();
m.SetReverse(matrixOnParent);
m.TransformPoint(x1, y1);
CFX_RectF bounds;
child->GetWidgetRect(bounds);
if (bounds.Contains(x1, y1)) {
x1 -= bounds.left;
y1 -= bounds.top;
return GetWidgetAtPoint(child, x1, y1);
}
}
child = GetPriorSiblingWidget(child);
}
return parent;
}
void IFWL_Widget::GetMatrix(CFX_Matrix& matrix, bool bGlobal) {
if (!m_pProperties)
return;
if (!bGlobal) {
matrix.SetIdentity();
return;
}
IFWL_Widget* parent = GetParent();
CFX_ArrayTemplate<IFWL_Widget*> parents;
while (parent) {
parents.Add(parent);
parent = parent->GetParent();
}
matrix.SetIdentity();
CFX_Matrix ctmOnParent;
CFX_RectF rect;
int32_t count = parents.GetSize();
for (int32_t i = count - 2; i >= 0; i--) {
parent = parents.GetAt(i);
parent->GetMatrix(ctmOnParent, false);
parent->GetWidgetRect(rect);
matrix.Concat(ctmOnParent, true);
matrix.Translate(rect.left, rect.top, true);
}
CFX_Matrix m;
m.SetIdentity();
matrix.Concat(m, true);
parents.RemoveAll();
}
void CFWL_WidgetMgrDelegate::DrawChild(IFWL_Widget* parent,
const CFX_RectF& rtClip,
CFX_Graphics* pGraphics,
const CFX_Matrix* pMatrix) {
if (!parent)
return;
FX_BOOL bFormDisable = m_pWidgetMgr->IsFormDisabled();
IFWL_Widget* pNextChild = m_pWidgetMgr->GetFirstChildWidget(parent);
while (pNextChild) {
IFWL_Widget* child = pNextChild;
pNextChild = m_pWidgetMgr->GetNextSiblingWidget(child);
if (child->GetStates() & FWL_WGTSTATE_Invisible)
continue;
CFX_RectF rtWidget;
child->GetWidgetRect(rtWidget);
if (rtWidget.IsEmpty())
continue;
CFX_Matrix widgetMatrix;
CFX_RectF clipBounds(rtWidget);
if (!bFormDisable)
child->GetMatrix(widgetMatrix, TRUE);
if (pMatrix)
widgetMatrix.Concat(*pMatrix);
if (!bFormDisable) {
widgetMatrix.TransformPoint(clipBounds.left, clipBounds.top);
clipBounds.Intersect(rtClip);
if (clipBounds.IsEmpty())
continue;
pGraphics->SaveGraphState();
pGraphics->SetClipRect(clipBounds);
}
widgetMatrix.Translate(rtWidget.left, rtWidget.top, TRUE);
IFWL_WidgetDelegate* pDelegate = child->SetDelegate(nullptr);
if (pDelegate) {
if (m_pWidgetMgr->IsFormDisabled() ||
IsNeedRepaint(child, &widgetMatrix, rtClip)) {
pDelegate->OnDrawWidget(pGraphics, &widgetMatrix);
}
}
if (!bFormDisable)
pGraphics->RestoreGraphState();
DrawChild(child, clipBounds, pGraphics,
bFormDisable ? &widgetMatrix : pMatrix);
child = m_pWidgetMgr->GetNextSiblingWidget(child);
}
}