143 lines
4.1 KiB
C++
143 lines
4.1 KiB
C++
// This file is part of Desktop App Toolkit,
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// a set of libraries for developing nice desktop applications.
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//
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// For license and copyright information please follow this link:
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// https://github.com/desktop-app/legal/blob/master/LEGAL
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//
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#include "ui/gl/gl_window.h"
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#include "ui/gl/gl_detection.h"
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#include "ui/widgets/window.h"
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#include "base/event_filter.h"
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#include "base/platform/base_platform_info.h"
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#include "base/debug_log.h"
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#ifdef Q_OS_WIN
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#include "ui/platform/win/ui_window_win.h"
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#endif // Q_OS_WIN
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#include <QtGui/QWindow>
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#include <QtGui/QScreen>
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namespace Ui::GL {
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namespace {
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constexpr auto kUseNativeChild = false;// ::Platform::IsWindows();
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} // namespace
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Window::Window()
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: _window(createWindow())
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, _bodyNativeWrap(createNativeBodyWrap())
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, _body(_bodyNativeWrap ? _bodyNativeWrap.get() : _window->body().get()) {
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}
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Window::~Window() = default;
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Backend Window::backend() const {
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return _backend;
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}
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not_null<Ui::Window*> Window::window() const {
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return _window.get();
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}
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not_null<Ui::RpWidget*> Window::widget() const {
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return _body.get();
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}
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std::unique_ptr<Ui::Window> Window::createWindow() {
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auto result = std::make_unique<Ui::Window>();
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if constexpr (!kUseNativeChild) {
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const auto capabilities = Ui::GL::CheckCapabilities(result.get());
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const auto use = ::Platform::IsMac()
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? true
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: ::Platform::IsWindows()
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? capabilities.supported
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: capabilities.transparency;
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LOG(("OpenGL: %1 (Ui::GL::Window)").arg(use ? "[TRUE]" : "[FALSE]"));
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_backend = use ? Ui::GL::Backend::OpenGL : Ui::GL::Backend::Raster;
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if (!use) {
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// We have to create a new window, if OpenGL initialization failed.
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result = std::make_unique<Ui::Window>();
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}
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}
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return result;
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}
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std::unique_ptr<Ui::RpWidget> Window::createNativeBodyWrap() {
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if constexpr (!kUseNativeChild) {
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return nullptr;
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}
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const auto create = [] {
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auto result = std::make_unique<Ui::RpWidget>();
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result->setWindowFlags(Qt::FramelessWindowHint | Qt::Window);
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result->setAttribute(Qt::WA_NativeWindow);
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result->setAttribute(Qt::WA_DontCreateNativeAncestors);
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result->setAttribute(Qt::WA_OpaquePaintEvent);
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result->setAttribute(Qt::WA_NoSystemBackground);
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return result;
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};
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auto result = create();
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const auto capabilities = Ui::GL::CheckCapabilities(result.get());
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const auto use = ::Platform::IsMac()
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? true
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: ::Platform::IsWindows()
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? capabilities.supported
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: capabilities.transparency;
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LOG(("OpenGL: %1 (Ui::GL::WindowBody)").arg(use ? "[TRUE]" : "[FALSE]"));
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_backend = use ? Ui::GL::Backend::OpenGL : Ui::GL::Backend::Raster;
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if (!use) {
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// We have to create a new window, if OpenGL initialization failed.
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result = create();
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}
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const auto nativeParent = _window->body();
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nativeParent->setAttribute(Qt::WA_OpaquePaintEvent);
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nativeParent->setAttribute(Qt::WA_NoSystemBackground);
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const auto raw = result.get();
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raw->setParent(nativeParent);
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raw->show();
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raw->update();
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#ifdef Q_OS_WIN
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// In case a child native window fully covers the parent window,
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// the system never sends a WM_PAINT message to the parent window.
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//
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// In this case if you minimize / hide the parent window, it receives
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// QExposeEvent with isExposed() == false in window state change handler.
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//
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// But it never receives QExposeEvent with isExposed() == true, because
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// window state change handler doesn't send it, instead the WM_PAINT is
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// supposed to send it. No WM_PAINT -> no expose -> broken UI updating.
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const auto childWindow = raw->windowHandle();
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base::install_event_filter(childWindow, [=](not_null<QEvent*> event) {
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if (event->type() == QEvent::Expose && childWindow->isExposed()) {
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Ui::Platform::SendWMPaintForce(_window.get());
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}
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return base::EventFilterResult::Continue;
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});
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_window->sizeValue(
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) | rpl::start_with_next([=](QSize size) {
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auto geometry = QRect(QPoint(), size);
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if constexpr (::Platform::IsWindows()) {
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if (const auto screen = _window->screen()) {
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if (screen->size() == size) {
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// Fix flicker in FullScreen OpenGL window on Windows.
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geometry = geometry.marginsAdded({ 0, 0, 0, 1 });
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}
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}
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}
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raw->setGeometry(geometry);
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}, raw->lifetime());
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#endif // Q_OS_WIN
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return result;
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}
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} // namespace Ui::GL
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