108 lines
		
	
	
	
		
			3.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			108 lines
		
	
	
	
		
			3.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "platform/win/window_title_win.h"
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#include "ui/widgets/buttons.h"
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#include "ui/widgets/shadow.h"
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#include "styles/style_window.h"
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namespace Platform {
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TitleWidget::TitleWidget(QWidget *parent) : Window::TitleWidget(parent)
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, _minimize(this, st::titleButtonMinimize)
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, _maximizeRestore(this, st::titleButtonMaximize)
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, _close(this, st::titleButtonClose)
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, _shadow(this, st::titleShadow)
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, _maximizedState(parent->window()->windowState() & Qt::WindowMaximized) {
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	_minimize->setClickedCallback([this]() {
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		window()->setWindowState(Qt::WindowMinimized);
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		_minimize->clearState();
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	});
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	_minimize->setPointerCursor(false);
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	_maximizeRestore->setClickedCallback([this]() {
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		window()->setWindowState(_maximizedState ? Qt::WindowNoState : Qt::WindowMaximized);
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		_maximizeRestore->clearState();
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	});
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	_maximizeRestore->setPointerCursor(false);
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	_close->setClickedCallback([this]() {
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		window()->close();
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		_close->clearState();
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	});
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	_close->setPointerCursor(false);
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	setAttribute(Qt::WA_OpaquePaintEvent);
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	resize(width(), st::titleHeight);
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}
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void TitleWidget::init() {
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	connect(window()->windowHandle(), SIGNAL(windowStateChanged(Qt::WindowState)), this, SLOT(onWindowStateChanged(Qt::WindowState)));
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	_maximizedState = (window()->windowState() & Qt::WindowMaximized);
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	_activeState = isActiveWindow();
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	updateButtonsState();
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}
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void TitleWidget::paintEvent(QPaintEvent *e) {
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	auto active = isActiveWindow();
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	if (_activeState != active) {
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		_activeState = active;
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		updateButtonsState();
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	}
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	Painter(this).fillRect(rect(), active ? st::titleBgActive : st::titleBg);
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}
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void TitleWidget::updateControlsPosition() {
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	auto right = 0;
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	_close->moveToRight(right, 0); right += _close->width();
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	_maximizeRestore->moveToRight(right, 0); right += _maximizeRestore->width();
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	_minimize->moveToRight(right, 0);
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}
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void TitleWidget::resizeEvent(QResizeEvent *e) {
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	updateControlsPosition();
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	_shadow->setGeometry(0, height() - st::lineWidth, width(), st::lineWidth);
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}
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void TitleWidget::updateControlsVisibility() {
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	updateControlsPosition();
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	update();
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}
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void TitleWidget::onWindowStateChanged(Qt::WindowState state) {
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	if (state == Qt::WindowMinimized) return;
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	auto maximized = (state == Qt::WindowMaximized);
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	if (_maximizedState != maximized) {
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		_maximizedState = maximized;
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		updateButtonsState();
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	}
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}
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void TitleWidget::updateButtonsState() {
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	_minimize->setIconOverride(_activeState ? &st::titleButtonMinimizeIconActive : nullptr, _activeState ? &st::titleButtonMinimizeIconActiveOver : nullptr);
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	if (_maximizedState) {
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		_maximizeRestore->setIconOverride(_activeState ? &st::titleButtonRestoreIconActive : &st::titleButtonRestoreIcon, _activeState ? &st::titleButtonRestoreIconActiveOver : &st::titleButtonRestoreIconOver);
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	} else {
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		_maximizeRestore->setIconOverride(_activeState ? &st::titleButtonMaximizeIconActive : nullptr, _activeState ? &st::titleButtonMaximizeIconActiveOver : nullptr);
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	}
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	_close->setIconOverride(_activeState ? &st::titleButtonCloseIconActive : nullptr, _activeState ? &st::titleButtonCloseIconActiveOver : nullptr);
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}
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Window::HitTestResult TitleWidget::hitTest(const QPoint &p) const {
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	if (false
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		|| (_minimize->geometry().contains(p))
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		|| (_maximizeRestore->geometry().contains(p))
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		|| (_close->geometry().contains(p))
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	) {
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		return Window::HitTestResult::SysButton;
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	} else if (rect().contains(p)) {
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		return Window::HitTestResult::Caption;
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	}
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	return Window::HitTestResult::None;
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}
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} // namespace Platform
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