From d86a71f79afe0e4dac768f61d6bff690567aca5b Mon Sep 17 00:00:00 2001 From: crupest Date: Sun, 24 May 2020 01:40:02 +0800 Subject: ... --- src/ui/ContentControl.cpp | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 src/ui/ContentControl.cpp (limited to 'src/ui/ContentControl.cpp') diff --git a/src/ui/ContentControl.cpp b/src/ui/ContentControl.cpp new file mode 100644 index 00000000..8d1a17d2 --- /dev/null +++ b/src/ui/ContentControl.cpp @@ -0,0 +1,33 @@ +#include "cru/ui/ContentControl.hpp" + +#include "cru/ui/Window.hpp" + +namespace cru::ui { +ContentControl::ContentControl() + : child_vector_{nullptr}, child_(child_vector_[0]) {} + +ContentControl::~ContentControl() { delete child_; } + +void ContentControl::SetChild(Control* child) { + Expects(!dynamic_cast(child)); // Can't add a window as child. + if (child == child_) return; + + const auto host = GetUiHost(); + const auto old_child = child_; + child_ = child; + if (old_child) { + old_child->_SetParent(nullptr); + old_child->_SetDescendantUiHost(nullptr); + } + if (child) { + child->_SetParent(this); + child->_SetDescendantUiHost(host); + } + OnChildChanged(old_child, child); +} + +void ContentControl::OnChildChanged(Control* old_child, Control* new_child) { + CRU_UNUSED(old_child) + CRU_UNUSED(new_child) +} +} // namespace cru::ui -- cgit v1.2.3