Files
CMake/Tests/CMakeGUI/CatchShow.h
Kitware Robot 33abef7416 Revise C++ coding style using clang-format-15
Run the `clang-format.bash` script to update all our C and C++ code to a
new style defined by `.clang-format`.  Use `clang-format` version 15.

* If you reached this commit for a line in `git blame`, re-run the blame
  operation starting at the parent of this commit to see older history
  for the content.

* See the parent commit for instructions to rebase a change across this
  style transition commit.

Fixes: #24315
2023-01-18 16:20:47 -05:00

43 lines
912 B
C++

/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#pragma once
#include <functional>
#include <memory>
#include <QObject>
#include <QWidget>
class CatchShow : public QObject
{
Q_OBJECT
public:
CatchShow(QObject* parent = nullptr);
template <typename T, typename F>
void setCallback(F&& func);
bool eventFilter(QObject* obj, QEvent* event) override;
int count() const;
private:
std::function<void(QObject* obj)> m_callback;
int m_count = 0;
};
template <typename T, typename F>
void CatchShow::setCallback(F&& func)
{
this->m_callback = [this, func](QObject* obj) {
auto* d = qobject_cast<T*>(obj);
if (d) {
QMetaObject::invokeMethod(
obj,
[this, func, d]() {
++this->m_count;
func(d);
},
Qt::QueuedConnection);
}
};
}