tdesktop/Telegram/SourceFiles/settings/settings_widget.cpp

118 lines
3.9 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
*/
#include "stdafx.h"
#include "settings/settings_widget.h"
#include "settings/settings_inner_widget.h"
#include "settings/settings_fixed_bar.h"
#include "styles/style_settings.h"
#include "ui/scrollarea.h"
#include "mainwindow.h"
namespace Settings {
Widget::Widget() : LayerWidget()
, _scroll(this, st::setScroll)
, _inner(this)
, _fixedBar(this)
, _fixedBarShadow1(this, st::settingsFixedBarShadowBg1)
, _fixedBarShadow2(this, st::settingsFixedBarShadowBg2) {
_scroll->setOwnedWidget(_inner);
setAttribute(Qt::WA_OpaquePaintEvent);
_fixedBar->move(0, 0);
_fixedBarShadow1->move(0, _fixedBar->y() + st::settingsFixedBarHeight);
_fixedBarShadow2->move(0, _fixedBarShadow1->y() + st::lineWidth);
_scroll->move(0, st::settingsFixedBarHeight);
}
void Widget::parentResized() {
int windowWidth = App::wnd()->width();
int newWidth = st::settingsMaxWidth;
int newContentLeft = st::settingsMaxPadding;
if (windowWidth <= st::settingsMaxWidth) {
newWidth = windowWidth;
newContentLeft = st::settingsMinPadding;
if (windowWidth > st::wndMinWidth) {
// Width changes from st::wndMinWidth to st::settingsMaxWidth.
// Padding changes from st::settingsMinPadding to st::settingsMaxPadding.
newContentLeft += ((newWidth - st::wndMinWidth) * (st::settingsMaxPadding - st::settingsMinPadding)) / (st::settingsMaxWidth - st::wndMinWidth);
}
} else if (windowWidth < st::settingsMaxWidth + 2 * st::settingsMargin) {
newWidth = windowWidth - 2 * st::settingsMargin;
newContentLeft = st::settingsMinPadding;
if (windowWidth > st::wndMinWidth) {
// Width changes from st::wndMinWidth to st::settingsMaxWidth.
// Padding changes from st::settingsMinPadding to st::settingsMaxPadding.
newContentLeft += ((newWidth - st::wndMinWidth) * (st::settingsMaxPadding - st::settingsMinPadding)) / (st::settingsMaxWidth - st::wndMinWidth);
}
}
// Widget height depends on InnerWidget height, so we
// resize it here, not in the resizeEvent() handler.
_inner->resizeToWidth(newWidth, newContentLeft);
int windowHeight = App::wnd()->height();
int maxHeight = st::settingsFixedBarHeight + _inner->height();
int newHeight = maxHeight;
if (newHeight > windowHeight || newWidth >= windowWidth) {
newHeight = windowHeight;
}
if (_contentLeft != newContentLeft) {
_contentLeft = newContentLeft;
}
setGeometry((App::wnd()->width() - newWidth) / 2, (App::wnd()->height() - newHeight) / 2, newWidth, newHeight);
update();
}
void Widget::showDone() {
_inner->showFinished();
}
void Widget::paintEvent(QPaintEvent *e) {
Painter p(this);
p.fillRect(rect(), st::windowBg);
}
void Widget::resizeEvent(QResizeEvent *e) {
if (!width() || !height()) {
return;
}
_fixedBar->resizeToWidth(width());
_fixedBarShadow1->resize(width(), st::lineWidth);
_fixedBarShadow2->resize(width(), st::lineWidth);
QSize scrollSize(width(), height() - _fixedBar->height());
if (_scroll->size() != scrollSize) {
_scroll->resize(scrollSize);
}
if (!_scroll->isHidden()) {
int scrollTop = _scroll->scrollTop();
_inner->setVisibleTopBottom(scrollTop, scrollTop + _scroll->height());
}
}
} // namespace Settings