tdesktop/Telegram/SourceFiles/platform/win/window_title_win.cpp

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/*
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 "platform/win/window_title_win.h"
#include "ui/widgets/buttons.h"
#include "ui/widgets/shadow.h"
#include "styles/style_window.h"
namespace Platform {
TitleWidget::TitleWidget(QWidget *parent) : Window::TitleWidget(parent)
, _minimize(this, st::titleButtonMinimize)
, _maximizeRestore(this, st::titleButtonMaximize)
, _close(this, st::titleButtonClose)
, _shadow(this, st::titleShadow)
, _maximized(parent->window()->windowState() & Qt::WindowMaximized) {
_minimize->setClickedCallback([this]() {
window()->setWindowState(Qt::WindowMinimized);
_minimize->clearState();
});
_minimize->setPointerCursor(false);
_maximizeRestore->setClickedCallback([this]() {
window()->setWindowState(_maximized ? Qt::WindowNoState : Qt::WindowMaximized);
_maximizeRestore->clearState();
});
_maximizeRestore->setPointerCursor(false);
_close->setClickedCallback([this]() {
window()->close();
_close->clearState();
});
_close->setPointerCursor(false);
setAttribute(Qt::WA_OpaquePaintEvent);
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resize(width(), st::titleHeight);
}
void TitleWidget::init() {
connect(window()->windowHandle(), SIGNAL(windowStateChanged(Qt::WindowState)), this, SLOT(onWindowStateChanged(Qt::WindowState)));
_maximized = (window()->windowState() & Qt::WindowMaximized);
updateMaximizeRestoreButton();
}
void TitleWidget::paintEvent(QPaintEvent *e) {
Painter(this).fillRect(rect(), st::titleBg);
}
void TitleWidget::updateControlsPosition() {
auto right = 0;
_close->moveToRight(right, 0); right += _close->width();
_maximizeRestore->moveToRight(right, 0); right += _maximizeRestore->width();
_minimize->moveToRight(right, 0);
}
void TitleWidget::resizeEvent(QResizeEvent *e) {
updateControlsPosition();
_shadow->setGeometry(0, height() - st::lineWidth, width(), st::lineWidth);
}
void TitleWidget::updateControlsVisibility() {
updateControlsPosition();
update();
}
void TitleWidget::onWindowStateChanged(Qt::WindowState state) {
if (state == Qt::WindowMinimized) return;
auto maximized = (state == Qt::WindowMaximized);
if (_maximized != maximized) {
_maximized = maximized;
updateMaximizeRestoreButton();
}
}
void TitleWidget::updateMaximizeRestoreButton() {
if (_maximized) {
_maximizeRestore->setIconOverride(&st::titleButtonRestoreIcon, &st::titleButtonRestoreIconOver);
} else {
_maximizeRestore->setIconOverride(nullptr, nullptr);
}
}
Window::HitTestResult TitleWidget::hitTest(const QPoint &p) const {
if (false
|| (_minimize->geometry().contains(p))
|| (_maximizeRestore->geometry().contains(p))
|| (_close->geometry().contains(p))
) {
return Window::HitTestResult::SysButton;
} else if (rect().contains(p)) {
return Window::HitTestResult::Caption;
}
return Window::HitTestResult::None;
}
} // namespace Platform