mirror of
https://github.com/linuxdeepin/dde-dock.git
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333 lines
12 KiB
C++
333 lines
12 KiB
C++
// Copyright (C) 2018 ~ 2020 Uniontech Technology Co., Ltd.
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// SPDX-FileCopyrightText: 2018 - 2023 UnionTech Software Technology Co., Ltd.
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//
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// SPDX-License-Identifier: LGPL-3.0-or-later
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#include "displaymanager.h"
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#include "utils.h"
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#include <QScreen>
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#include <QApplication>
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#include <QDBusConnection>
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#include <QDesktopWidget>
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DisplayManager::DisplayManager(QObject *parent)
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: QObject(parent)
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, m_gsettings(Utils::SettingsPtr("com.deepin.dde.dock.mainwindow", "/com/deepin/dde/dock/mainwindow/", this))
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, m_onlyInPrimary(Utils::SettingValue("com.deepin.dde.dock.mainwindow", "/com/deepin/dde/dock/mainwindow/", "onlyShowPrimary", false).toBool())
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{
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connect(qApp, &QApplication::primaryScreenChanged, this, &DisplayManager::primaryScreenChanged);
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connect(qApp, &QApplication::primaryScreenChanged, this, &DisplayManager::dockInfoChanged);
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connect(qApp, &QGuiApplication::screenAdded, this, &DisplayManager::screenCountChanged);
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connect(qApp, &QGuiApplication::screenRemoved, this, &DisplayManager::screenCountChanged);
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if (m_gsettings)
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connect(m_gsettings, &QGSettings::changed, this, &DisplayManager::onGSettingsChanged);
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screenCountChanged();
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QTimer::singleShot(0, this, &DisplayManager::screenInfoChanged);
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}
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/**
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* @brief DisplayManager::screens
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* @return 返回当前可用的QScreen指针列表
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*/
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QList<QScreen *> DisplayManager::screens() const
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{
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return m_screens;
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}
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/**
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* @brief DisplayManager::screen
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* @param screenName
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* @return 根据screenName参数找到对应的QScreen指针返回，否则返回nullptr
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*/
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QScreen *DisplayManager::screen(const QString &screenName) const
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{
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for (auto s : m_screens) {
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if (s->name() == screenName)
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return s;
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}
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return nullptr;
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}
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QScreen *DisplayManager::screenAt(const QPoint &pos) const
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{
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for (QScreen *screen : m_screens) {
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QRect screenGeometry = screen->geometry();
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if (screenGeometry.contains(pos))
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return screen;
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}
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return nullptr;
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}
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/**
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* @brief DisplayManager::primary
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* @return 主屏幕名称
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*/
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QString DisplayManager::primary() const
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{
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return qApp->primaryScreen() ? qApp->primaryScreen()->name() : QString();
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}
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/**
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* @brief Display::screenWidth
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* @return 所有屏幕逻辑宽度之和
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*/
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int DisplayManager::screenRawWidth() const
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{
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int width = 0;
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for (auto s : m_screens) {
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width = qMax(width, s->geometry().x() + int(s->geometry().width() * s->devicePixelRatio()));
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}
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return width;
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}
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/**
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* @brief Display::screenHeight
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* @return 所有屏幕逻辑高度之和
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*/
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int DisplayManager::screenRawHeight() const
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{
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int height = 0;
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for (auto s : m_screens) {
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height = qMax(height, s->geometry().y() + int(s->geometry().height() * s->devicePixelRatio()));
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}
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return height;
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}
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/**
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* @brief DisplayManager::canDock
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* @param s QScreen指针
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* @param pos 任务栏位置（上下左右）
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* @return 判断当前s屏幕上pos位置任务栏位置是否允许停靠
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*/
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bool DisplayManager::canDock(QScreen *s, Position pos) const
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{
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return s ? m_screenPositionMap[s].value(pos) : false;
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}
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/**判断屏幕是否为复制模式的依据，第一个屏幕的X和Y值是否和其他的屏幕的X和Y值相等
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* 对于复制模式，这两个值肯定是相等的，如果不是复制模式，这两个值肯定不等，目前支持双屏
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* @brief DisplayManager::isCopyMode
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* @return
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*/
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bool DisplayManager::isCopyMode()
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{
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QList<QScreen *> screens = this->screens();
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if (screens.size() < 2)
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return false;
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// 在多个屏幕的情况下，如果所有屏幕的位置的X和Y值都相等，则认为是复制模式
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QRect screenRect = screens[0]->availableGeometry();
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for (int i = 1; i < screens.size(); i++) {
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QRect rect = screens[i]->availableGeometry();
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if (screenRect.x() != rect.x() || screenRect.y() != rect.y())
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return false;
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}
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return true;
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}
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/**
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* @brief DisplayManager::updateScreenDockInfo
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* 更新屏幕停靠信息
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*/
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void DisplayManager::updateScreenDockInfo()
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{
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// TODO 目前仅仅支持双屏，如果超过双屏，会出现异常，这里可以考虑做成通用的处理规则
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// 先清除原先的数据，然后再更新
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m_screenPositionMap.clear();
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if (m_screens.isEmpty())
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return;
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// reset map
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for (auto s : m_screens) {
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QMap <Position, bool> map;
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map.insert(Position::Top, true);
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map.insert(Position::Bottom, true);
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map.insert(Position::Left, true);
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map.insert(Position::Right, true);
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m_screenPositionMap.insert(s, map);
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}
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// 仅显示在主屏时的处理
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if (m_onlyInPrimary) {
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for (auto s : m_screens) {
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if (s != qApp->primaryScreen()) {
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QMap <Position, bool> map;
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map.insert(Position::Top, false);
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map.insert(Position::Bottom, false);
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map.insert(Position::Left, false);
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map.insert(Position::Right, false);
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m_screenPositionMap.insert(s, map);
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}
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}
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return;
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}
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if (m_screens.size() == 1) {
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return;
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}
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// 适配多个屏幕的情况
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for(auto s : m_screens) {
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QList<QScreen *> otherScreens = m_screens;
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otherScreens.removeAll(s);
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for (auto other : otherScreens) {
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QRect ourRect = QRect(s->geometry().topLeft(), s->geometry().size() * s->devicePixelRatio());
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int ourBottom = ourRect.top() + ourRect.height();
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int ourTop = ourRect.top();
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int ourLeft = ourRect.left();
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int ourRight = ourRect.left() + ourRect.width();
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QPoint ourLeftBottom = QPoint(ourLeft, ourBottom);
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QPoint ourRightBottom = QPoint(ourRight, ourBottom);
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QPoint ourRightTop = QPoint(ourRight, ourTop);
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QRect otherRect = QRect(other->geometry().topLeft(), other->geometry().size() * other->devicePixelRatio());
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int otherBottom = otherRect.top() + otherRect.height();
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int otherTop = otherRect.top();
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int otherLeft = otherRect.left();
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int otherRight = otherRect.left() + otherRect.width();
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QPoint otherLeftBottom = QPoint(otherLeft, otherBottom);
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QPoint otherLeftTop = QPoint(otherLeft, otherTop);
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QPoint otherRightTop = QPoint(otherRight, otherTop);
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/*
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* 上下拼接，our屏幕左右移动。
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* our屏幕从other屏幕对角的左上侧向右移动，至other屏幕对角的右上侧位置
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--------- ---------
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| | | |
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| our | ======>>>>> | our |
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| | | |
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--------------- ---------------
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| other | | other |
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--------- ---------
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*/
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// 上下拼接
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if (ourBottom == otherTop
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&& (ourRight >= otherLeft)
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&& (ourLeft <= otherRight)) {
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// 排除对角排列
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if (ourLeftBottom == otherRightTop
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|| ourRightBottom == otherLeftTop)
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continue;
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m_screenPositionMap[s][Position::Bottom] = false;
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m_screenPositionMap[other][Position::Top] = false;
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}
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/*
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* 左右拼接，our屏幕上下移动。
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* our屏幕从other屏幕对角的左上侧向下移动，至other屏幕对角的最左下侧位置
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--------- ---------
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| | | |
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| our | ======>>>>> ---------| other |
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| |-------- | | |
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--------| | | our |--------
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| other | | |
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| | ----------
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---------
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*/
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// 左右拼接
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if (otherLeft == ourRight
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&& (ourTop <= otherBottom)
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&& (ourBottom >= otherTop)) {
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// 排除对角排列
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if (ourRightTop == otherLeftBottom
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|| ourRightBottom == otherLeftTop)
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continue;
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m_screenPositionMap[s][Position::Right] = false;
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m_screenPositionMap[other][Position::Left] = false;
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}
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}
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}
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}
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/**
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* @brief DisplayManager::screenCountChanged
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* 屏幕数量发生变化时，此函数应被调用，更新屏幕相关信息
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* @note 除初始化时需要手动调用一次外，其他时间会自动被调用
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*/
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void DisplayManager::screenCountChanged()
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{
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// 找到过期的screen指针
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QList<QScreen *> to_remove_list;
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for (auto s : m_screens) {
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if (!qApp->screens().contains(s))
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to_remove_list.append(s);
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}
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// 找出新增的screen指针
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QList<QScreen *> to_add_list;
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for (auto s : qApp->screens()) {
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if (!m_screens.contains(s)) {
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to_add_list.append(s);
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}
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}
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// 取消关联
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for (auto s : to_remove_list) {
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disconnect(s);
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m_screens.removeOne(s);
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}
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// 创建关联
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for (auto s : to_add_list) {
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s->setOrientationUpdateMask(Qt::PrimaryOrientation
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| Qt::LandscapeOrientation
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| Qt::PortraitOrientation
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| Qt::InvertedLandscapeOrientation
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| Qt::InvertedPortraitOrientation);
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// 显示器信息发生任何变化时，都应该重新刷新一次任务栏的显示位置
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connect(s, &QScreen::geometryChanged, this, &DisplayManager::dockInfoChanged);
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connect(s, &QScreen::availableGeometryChanged, this, &DisplayManager::dockInfoChanged);
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connect(s, &QScreen::physicalSizeChanged, this, &DisplayManager::dockInfoChanged);
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connect(s, &QScreen::physicalDotsPerInchChanged, this, &DisplayManager::dockInfoChanged);
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connect(s, &QScreen::logicalDotsPerInchChanged, this, &DisplayManager::dockInfoChanged);
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connect(s, &QScreen::virtualGeometryChanged, this, &DisplayManager::dockInfoChanged);
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connect(s, &QScreen::primaryOrientationChanged, this, &DisplayManager::dockInfoChanged);
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connect(s, &QScreen::orientationChanged, this, &DisplayManager::dockInfoChanged);
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connect(s, &QScreen::refreshRateChanged, this, &DisplayManager::dockInfoChanged);
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m_screens.append(s);
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}
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// 屏幕数量发生变化，应该刷新一下任务栏的显示
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dockInfoChanged();
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}
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void DisplayManager::dockInfoChanged()
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{
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updateScreenDockInfo();
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#ifdef QT_DEBUG
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qInfo() << m_screenPositionMap;
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#endif
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Q_EMIT screenInfoChanged();
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}
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/**
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* @brief DisplayManager::onGSettingsChanged
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* @param key
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* 监听onlyShowPrimary配置的变化，此时有变化时应该刷新一下任务栏的显示信息
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*/
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void DisplayManager::onGSettingsChanged(const QString &key)
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{
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if (key == "onlyShowPrimary") {
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m_onlyInPrimary = Utils::SettingValue("com.deepin.dde.dock.mainwindow", "/com/deepin/dde/dock/mainwindow/", "onlyShowPrimary", false).toBool();
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dockInfoChanged();
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}
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}
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