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framelesshelper/framelesswindowsmanager.cpp

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/*
* MIT License
*
* Copyright (C) 2020 by wangwenx190 (Yuhang Zhao)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "framelesswindowsmanager.h"
#include <QGuiApplication>
#include <QScreen>
#include <QWindow>
#ifdef QT_WIDGETS_LIB
#include <QWidget>
#endif
#if (defined(Q_OS_WIN) || defined(Q_OS_WIN32) || defined(Q_OS_WIN64) || defined(Q_OS_WINRT)) \
&& !defined(Q_OS_WINDOWS)
#define Q_OS_WINDOWS
#endif
#ifdef Q_OS_WINDOWS
#include "winnativeeventfilter.h"
#else
#include "framelesshelper.h"
#endif
namespace {
void reportError()
{
qFatal("Only top level QWidgets and QWindows are accepted.");
}
QScreen *getCurrentScreenFromWindow(QObject *window)
{
Q_ASSERT(window);
if (window->isWindowType()) {
return qobject_cast<QWindow *>(window)->screen();
}
#ifdef QT_WIDGETS_LIB
else if (window->isWidgetType()) {
#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
return qobject_cast<QWidget *>(window)->screen();
#else
QWindow *win = qobject_cast<QWidget *>(window)->windowHandle();
return win ? win->screen() : nullptr;
#endif
}
#endif
else {
reportError();
}
return nullptr;
}
#ifdef Q_OS_WINDOWS
void *getRawHandleFromWindow(QObject *window)
{
Q_ASSERT(window);
if (window->isWindowType()) {
return reinterpret_cast<void *>(qobject_cast<QWindow *>(window)->winId());
}
#ifdef QT_WIDGETS_LIB
else if (window->isWidgetType()) {
return reinterpret_cast<void *>(qobject_cast<QWidget *>(window)->winId());
}
#endif
else {
reportError();
}
return nullptr;
}
#endif
#ifndef Q_OS_WINDOWS
using FLWM_CORE_DATA = struct _FLWM_CORE_DATA
{
FramelessHelper framelessHelper;
};
#endif
} // namespace
#ifndef Q_OS_WINDOWS
Q_GLOBAL_STATIC(FLWM_CORE_DATA, coreData)
#endif
FramelessWindowsManager::FramelessWindowsManager() {}
void FramelessWindowsManager::addWindow(QObject *window, const bool center)
{
Q_ASSERT(window);
#ifdef Q_OS_WINDOWS
WinNativeEventFilter::addFramelessWindow(window);
#else
coreData()->framelessHelper.removeWindowFrame(window);
#endif
if (center) {
moveWindowToDesktopCenter(window);
}
}
void FramelessWindowsManager::moveWindowToDesktopCenter(QObject *window, const bool realCenter)
{
Q_ASSERT(window);
if (realCenter) {
#ifdef Q_OS_WINDOWS
WinNativeEventFilter::moveWindowToDesktopCenter(getRawHandleFromWindow(window));
#else
FramelessHelper::moveWindowToDesktopCenter(window);
#endif
} else {
QSize windowSize = {}, screenSize = {};
QRect screenGeometry = {};
if (window->isWindowType()) {
const auto win = qobject_cast<QWindow *>(window);
if (win) {
windowSize = win->size();
screenSize = getDesktopAvailableSize(win);
screenGeometry = getDesktopAvailableGeometry(win);
}
}
#ifdef QT_WIDGETS_LIB
else if (window->isWidgetType()) {
const auto widget = qobject_cast<QWidget *>(window);
if (widget && widget->isTopLevel()) {
windowSize = widget->size();
screenSize = getDesktopAvailableSize(widget);
screenGeometry = getDesktopAvailableGeometry(widget);
}
}
#endif
else {
reportError();
}
const int newX = qRound(static_cast<qreal>(screenSize.width() - windowSize.width()) / 2.0);
const int newY = qRound(static_cast<qreal>(screenSize.height() - windowSize.height()) / 2.0);
const int x = newX + screenGeometry.x();
const int y = newY + screenGeometry.y();
if (window->isWindowType()) {
const auto win = qobject_cast<QWindow *>(window);
if (win) {
win->setX(x);
win->setY(y);
}
}
#ifdef QT_WIDGETS_LIB
else if (window->isWidgetType()) {
const auto widget = qobject_cast<QWidget *>(window);
if (widget && widget->isTopLevel()) {
widget->move(x, y);
}
}
#endif
else {
reportError();
}
}
}
QSize FramelessWindowsManager::getDesktopSize(QObject *window)
{
const QScreen *screen = window ? getCurrentScreenFromWindow(window)
: QGuiApplication::primaryScreen();
return screen ? screen->size() : QSize();
}
QRect FramelessWindowsManager::getDesktopAvailableGeometry(QObject *window)
{
const QScreen *screen = window ? getCurrentScreenFromWindow(window)
: QGuiApplication::primaryScreen();
return screen ? screen->availableGeometry() : QRect();
}
QSize FramelessWindowsManager::getDesktopAvailableSize(QObject *window)
{
const QScreen *screen = window ? getCurrentScreenFromWindow(window)
: QGuiApplication::primaryScreen();
return screen ? screen->availableSize() : QSize();
}
void FramelessWindowsManager::addIgnoreArea(QObject *window, const QRect &area)
{
Q_ASSERT(window);
#ifdef Q_OS_WINDOWS
const auto data = WinNativeEventFilter::windowData(window);
if (data) {
data->ignoreAreas.append(area);
}
#else
coreData()->framelessHelper.addIgnoreArea(window, area);
#endif
}
void FramelessWindowsManager::addDraggableArea(QObject *window, const QRect &area)
{
Q_ASSERT(window);
#ifdef Q_OS_WINDOWS
const auto data = WinNativeEventFilter::windowData(window);
if (data) {
data->draggableAreas.append(area);
}
#else
coreData()->framelessHelper.addDraggableArea(window, area);
#endif
}
void FramelessWindowsManager::addIgnoreObject(QObject *window, QObject *object)
{
Q_ASSERT(window);
#ifdef Q_OS_WINDOWS
const auto data = WinNativeEventFilter::windowData(window);
if (data) {
data->ignoreObjects.append(object);
}
#else
coreData()->framelessHelper.addIgnoreObject(window, object);
#endif
}
void FramelessWindowsManager::addDraggableObject(QObject *window, QObject *object)
{
Q_ASSERT(window);
#ifdef Q_OS_WINDOWS
const auto data = WinNativeEventFilter::windowData(window);
if (data) {
data->draggableObjects.append(object);
}
#else
coreData()->framelessHelper.addDraggableObject(window, object);
#endif
}
int FramelessWindowsManager::getBorderWidth(QObject *window)
{
#ifdef Q_OS_WINDOWS
Q_ASSERT(window);
return WinNativeEventFilter::getSystemMetric(getRawHandleFromWindow(window),
WinNativeEventFilter::SystemMetric::BorderWidth);
#else
Q_UNUSED(window)
return coreData()->framelessHelper.getBorderWidth();
#endif
}
void FramelessWindowsManager::setBorderWidth(QObject *window, const int value)
{
#ifdef Q_OS_WINDOWS
Q_ASSERT(window);
const auto data = WinNativeEventFilter::windowData(window);
if (data) {
data->borderWidth = value;
}
#else
Q_UNUSED(window)
coreData()->framelessHelper.setBorderWidth(value);
#endif
}
int FramelessWindowsManager::getBorderHeight(QObject *window)
{
#ifdef Q_OS_WINDOWS
Q_ASSERT(window);
return WinNativeEventFilter::getSystemMetric(getRawHandleFromWindow(window),
WinNativeEventFilter::SystemMetric::BorderHeight);
#else
Q_UNUSED(window)
return coreData()->framelessHelper.getBorderHeight();
#endif
}
void FramelessWindowsManager::setBorderHeight(QObject *window, const int value)
{
#ifdef Q_OS_WINDOWS
Q_ASSERT(window);
const auto data = WinNativeEventFilter::windowData(window);
if (data) {
data->borderHeight = value;
}
#else
Q_UNUSED(window)
coreData()->framelessHelper.setBorderHeight(value);
#endif
}
int FramelessWindowsManager::getTitleBarHeight(QObject *window)
{
#ifdef Q_OS_WINDOWS
Q_ASSERT(window);
return WinNativeEventFilter::getSystemMetric(getRawHandleFromWindow(window),
WinNativeEventFilter::SystemMetric::TitleBarHeight);
#else
Q_UNUSED(window)
return coreData()->framelessHelper.getTitleBarHeight();
#endif
}
void FramelessWindowsManager::setTitleBarHeight(QObject *window, const int value)
{
#ifdef Q_OS_WINDOWS
Q_ASSERT(window);
const auto data = WinNativeEventFilter::windowData(window);
if (data) {
data->titleBarHeight = value;
}
#else
Q_UNUSED(window)
coreData()->framelessHelper.setTitleBarHeight(value);
#endif
}
bool FramelessWindowsManager::getResizable(QObject *window)
{
Q_ASSERT(window);
#ifdef Q_OS_WINDOWS
const auto data = WinNativeEventFilter::windowData(window);
return data ? !data->fixedSize : true;
#else
return coreData()->framelessHelper.getResizable(window);
#endif
}
void FramelessWindowsManager::setResizable(QObject *window, const bool value)
{
Q_ASSERT(window);
#ifdef Q_OS_WINDOWS
WinNativeEventFilter::setWindowResizable(getRawHandleFromWindow(window), value);
#else
coreData()->framelessHelper.setResizable(window, value);
#endif
}
QSize FramelessWindowsManager::getMinimumSize(QObject *window)
{
Q_ASSERT(window);
#ifdef Q_OS_WINDOWS
const auto data = WinNativeEventFilter::windowData(window);
return data ? data->minimumSize : QSize();
#else
if (window->isWindowType()) {
return qobject_cast<QWindow *>(window)->minimumSize();
}
#ifdef QT_WIDGETS_LIB
else if (window->isWidgetType()) {
return qobject_cast<QWidget *>(window)->minimumSize();
}
#endif
else {
reportError();
}
return {};
#endif
}
void FramelessWindowsManager::setMinimumSize(QObject *window, const QSize &value)
{
Q_ASSERT(window);
#ifdef Q_OS_WINDOWS
const auto data = WinNativeEventFilter::windowData(window);
if (data) {
data->minimumSize = value;
}
#else
if (window->isWindowType()) {
qobject_cast<QWindow *>(window)->setMinimumSize(value);
}
#ifdef QT_WIDGETS_LIB
else if (window->isWidgetType()) {
qobject_cast<QWidget *>(window)->setMinimumSize(value);
}
#endif
else {
reportError();
}
#endif
}
QSize FramelessWindowsManager::getMaximumSize(QObject *window)
{
Q_ASSERT(window);
#ifdef Q_OS_WINDOWS
const auto data = WinNativeEventFilter::windowData(window);
return data ? data->maximumSize : QSize();
#else
if (window->isWindowType()) {
return qobject_cast<QWindow *>(window)->maximumSize();
}
#ifdef QT_WIDGETS_LIB
else if (window->isWidgetType()) {
return qobject_cast<QWidget *>(window)->maximumSize();
}
#endif
else {
reportError();
}
return {};
#endif
}
void FramelessWindowsManager::setMaximumSize(QObject *window, const QSize &value)
{
Q_ASSERT(window);
#ifdef Q_OS_WINDOWS
const auto data = WinNativeEventFilter::windowData(window);
if (data) {
data->maximumSize = value;
}
#else
if (window->isWindowType()) {
qobject_cast<QWindow *>(window)->setMaximumSize(value);
}
#ifdef QT_WIDGETS_LIB
else if (window->isWidgetType()) {
qobject_cast<QWidget *>(window)->setMaximumSize(value);
}
#endif
else {
reportError();
}
#endif
}
bool FramelessWindowsManager::getTitleBarEnabled(QObject *window)
{
Q_ASSERT(window);
#ifdef Q_OS_WINDOWS
const auto data = WinNativeEventFilter::windowData(window);
return data ? !data->disableTitleBar : true;
#else
return coreData()->framelessHelper.getTitleBarEnabled(window);
#endif
}
void FramelessWindowsManager::setTitleBarEnabled(QObject *window, const bool value)
{
Q_ASSERT(window);
#ifdef Q_OS_WINDOWS
const auto data = WinNativeEventFilter::windowData(window);
if (data) {
data->disableTitleBar = !value;
}
#else
coreData()->framelessHelper.setTitleBarEnabled(window, value);
#endif
}
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