kwin/kcmkwin/kwinscreenedges/screenpreviewwidget.h
Vlad Zagorodniy 8af2fa73dc Run clang-tidy with modernize-use-override check
Summary:
Currently code base of kwin can be viewed as two pieces. One is very
ancient, and the other one is more modern, which uses new C++ features.

The main problem with the ancient code is that it was written before
C++11 era. So, no override or final keywords, lambdas, etc.

Quite recently, KDE compiler settings were changed to show a warning if
a virtual method has missing override keyword. As you might have already
guessed, this fired back at us because of that ancient code. We had
about 500 new compiler warnings.

A "solution" was proposed to that problem - disable -Wno-suggest-override
and the other similar warning for clang. It's hard to call a solution
because those warnings are disabled not only for the old code, but also
for new. This is not what we want!

The main argument for not actually fixing the problem was that git
history will be screwed as well because of human factor. While good git
history is a very important thing, we should not go crazy about it and
block every change that somehow alters git history. git blame allows to
specify starting revision for a reason.

The other argument (human factor) can be easily solved by using tools
such as clang-tidy. clang-tidy is a clang-based linter for C++. It can
be used for various things, e.g. fixing coding style(e.g. add missing
braces to if statements, readability-braces-around-statements check),
or in our case add missing override keywords.

Test Plan: Compiles.

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: davidedmundson, apol, romangg, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D22371
2019-07-22 20:03:22 +03:00

58 lines
1.6 KiB
C++

/* This file is part of the KDE libraries
Copyright (C) 2009 Marco Martin <notmart@gmail.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef SCREENPREVIEWWIDGET_H
#define SCREENPREVIEWWIDGET_H
#include <QWidget>
class ScreenPreviewWidgetPrivate;
class ScreenPreviewWidget : public QWidget
{
Q_OBJECT
public:
ScreenPreviewWidget(QWidget *parent);
~ScreenPreviewWidget() override;
void setPreview(const QPixmap &preview);
const QPixmap preview() const;
void setRatio(const qreal ratio);
qreal ratio() const;
QRect previewRect() const;
protected:
void resizeEvent(QResizeEvent *event) override;
void paintEvent(QPaintEvent *event) override;
void dropEvent(QDropEvent *event) override;
Q_SIGNALS:
void imageDropped(const QString &);
private:
ScreenPreviewWidgetPrivate *const d;
Q_PRIVATE_SLOT(d, void updateRect(const QRectF& rect))
};
#endif