tdesktop/Telegram/SourceFiles/settings/settings_block_widget.h

133 lines
4.1 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It 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 General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
*/
#pragma once
#include "core/observer.h"
class Checkbox;
class Radiobutton;
namespace Ui {
template <typename Widget>
class WidgetSlideWrap;
} // namespace Ui
namespace Settings {
class BlockWidget : public ScrolledWidget, protected base::Subscriber {
Q_OBJECT
public:
BlockWidget(QWidget *parent, UserData *self, const QString &title);
void setContentLeft(int contentLeft);
protected:
void paintEvent(QPaintEvent *e) override;
virtual void paintContents(Painter &p) {
}
// Where does the block content start (after the title).
int contentLeft() const {
return _contentLeft;
}
int contentTop() const;
// Resizes content and counts natural widget height for the desired width.
int resizeGetHeight(int newWidth) override;
void contentSizeUpdated() {
resizeToWidth(width());
emit heightUpdated();
}
UserData *self() const {
return _self;
}
bool emptyTitle() const {
return _title.isEmpty();
}
template <typename Widget, typename ...Args>
Widget *addChildRow(ChildWidget<Widget> &child, style::margins margin, Args&&... args) {
createChildRow(child, margin, std_::forward<Args>(args)...);
addCreatedRow(child, margin);
return child;
}
private:
template <typename Widget, typename ...Args>
void createChildRow(ChildWidget<Ui::WidgetSlideWrap<Widget>> &child, style::margins &margin, const style::margins &padding, Args&&... args) {
ChildWidget<Widget> plainChild = { nullptr };
createChildRow(plainChild, margin, std_::forward<Args>(args)...);
child = new Ui::WidgetSlideWrap<Widget>(this, plainChild, padding, [this]() {
rowHeightUpdated();
});
margin.setLeft(margin.left() - padding.left());
margin.setTop(margin.top() - padding.top());
margin.setRight(margin.right() - padding.right());
margin.setBottom(margin.bottom() - padding.bottom());
}
void createChildRow(ChildWidget<Checkbox> &child, style::margins &margin, const QString &text, const char *slot, bool checked);
void createChildRow(ChildWidget<Radiobutton> &child, style::margins &margin, const QString &group, int value, const QString &text, const char *slot, bool checked);
void createChildRow(ChildWidget<LinkButton> &child, style::margins &margin, const QString &text, const char *slot, const style::linkButton &st = st::defaultBoxLinkButton);
void addCreatedRow(TWidget *child, const style::margins &margin);
void rowHeightUpdated();
template <typename Widget>
struct IsWidgetSlideWrap {
static constexpr bool value = false;
};
template <typename Widget>
struct IsWidgetSlideWrap<Ui::WidgetSlideWrap<Widget>> {
static constexpr bool value = true;
};
template <typename Widget>
using NotImplementedYet = std_::enable_if_t<
!IsWidgetSlideWrap<Widget>::value &&
!std_::is_same<Widget, Checkbox>::value &&
!std_::is_same<Widget, Radiobutton>::value &&
!std_::is_same<Widget, LinkButton>::value>;
template <typename Widget, typename... Args, typename = NotImplementedYet<Widget>>
void createChildRow(ChildWidget<Widget> &child, style::margins &margin, Args&&... args) {
child = new Widget(this, std_::forward<Args>(args)...);
}
void paintTitle(Painter &p);
struct ChildRow {
TWidget *child;
style::margins margin;
};
QVector<ChildRow> _rows;
int _contentLeft = 0;
UserData *_self;
QString _title;
};
} // namespace Settings