tdesktop/Telegram/SourceFiles/info/info_top_bar.cpp

99 lines
2.5 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) 2014-2017 John Preston, https://desktop.telegram.org
*/
#include "info/info_top_bar.h"
#include "styles/style_info.h"
#include "ui/widgets/buttons.h"
#include "ui/widgets/labels.h"
namespace Info {
TopBar::TopBar(QWidget *parent, const style::InfoTopBar &st)
: RpWidget(parent)
, _st(st) {
setAttribute(Qt::WA_OpaquePaintEvent);
}
void TopBar::setTitle(rpl::producer<QString> &&title) {
_title.create(this, std::move(title), _st.title);
if (_back) {
_title->setAttribute(Qt::WA_TransparentForMouseEvents);
}
updateControlsGeometry(width());
}
void TopBar::enableBackButton(bool enable) {
if (enable) {
_back.create(this, _st.back);
_back->clicks()
| rpl::start_to_stream(_backClicks, _lifetime);
} else {
_back.destroy();
}
if (_title) {
_title->setAttribute(Qt::WA_TransparentForMouseEvents, enable);
}
updateControlsGeometry(width());
}
void TopBar::pushButton(object_ptr<Ui::RpWidget> button) {
auto weak = Ui::AttachParentChild(this, button);
_buttons.push_back(std::move(button));
weak->widthValue()
| rpl::start([this](auto&&) {
this->updateControlsGeometry(this->width());
}, _lifetime);
}
int TopBar::resizeGetHeight(int newWidth) {
updateControlsGeometry(newWidth);
return _st.height;
}
void TopBar::updateControlsGeometry(int newWidth) {
auto right = 0;
for (auto &button : _buttons) {
button->moveToRight(right, 0, newWidth);
right += button->width();
}
if (_back) {
_back->setGeometryToLeft(
0,
0,
newWidth - right,
_back->height(),
newWidth);
}
if (_title) {
_title->moveToLeft(
_back ? _st.back.width : _st.titlePosition.x(),
_st.titlePosition.y(),
newWidth);
}
}
void TopBar::paintEvent(QPaintEvent *e) {
Painter p(this);
p.fillRect(e->rect(), _st.bg);
}
} // namespace Info