diff options
16 files changed, 273 insertions, 61 deletions
diff --git a/examples/wayland/custom-extension/client-common/customextension.cpp b/examples/wayland/custom-extension/client-common/customextension.cpp index 3c585af3a..4f898ea9b 100644 --- a/examples/wayland/custom-extension/client-common/customextension.cpp +++ b/examples/wayland/custom-extension/client-common/customextension.cpp @@ -68,10 +68,12 @@ CustomExtensionObject *CustomExtension::createCustomObject(const QString &color, return new CustomExtensionObject(obj, text); } +//! [sendBounce] void CustomExtension::sendBounce(QWindow *window, uint ms) { QtWayland::qt_example_extension::bounce(getWlSurface(window), ms); } +//! [sendBounce] void CustomExtension::sendSpin(QWindow *window, uint ms) { diff --git a/examples/wayland/custom-extension/client-common/customextension.h b/examples/wayland/custom-extension/client-common/customextension.h index c3a9a4939..5dd770199 100644 --- a/examples/wayland/custom-extension/client-common/customextension.h +++ b/examples/wayland/custom-extension/client-common/customextension.h @@ -6,16 +6,21 @@ #include <QtWaylandClient/QWaylandClientExtension> #include <QtGui/QWindow> +#include <QtQml/QQmlEngine> + #include "qwayland-custom.h" QT_BEGIN_NAMESPACE class CustomExtensionObject; +//! [CustomExtension] class CustomExtension : public QWaylandClientExtensionTemplate<CustomExtension> , public QtWayland::qt_example_extension +//! [CustomExtension] { Q_OBJECT + QML_ELEMENT public: CustomExtension(); Q_INVOKABLE void registerWindow(QWindow *window); @@ -67,7 +72,6 @@ protected: public slots: void setText(const QString &text); - signals: void textChanged(const QString &text); void clicked(); diff --git a/examples/wayland/custom-extension/compositor/CMakeLists.txt b/examples/wayland/custom-extension/compositor/CMakeLists.txt index 4a946e6a6..bb70cf106 100644 --- a/examples/wayland/custom-extension/compositor/CMakeLists.txt +++ b/examples/wayland/custom-extension/compositor/CMakeLists.txt @@ -14,6 +14,7 @@ set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/wayland/custom-extension/composit find_package(Qt6 REQUIRED COMPONENTS Core Gui Qml WaylandCompositor) +qt6_policy(SET QTP0001 NEW) qt_add_executable(custom-extension-compositor customextension.cpp customextension.h main.cpp @@ -50,6 +51,11 @@ qt6_add_resources(custom-extension-compositor "compositor" ${compositor_resource_files} ) +qt6_add_qml_module(custom-extension-compositor + URI io.qt.examples.customextension + VERSION 1.0 +) + install(TARGETS custom-extension-compositor RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}" BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}" diff --git a/examples/wayland/custom-extension/compositor/compositor.pro b/examples/wayland/custom-extension/compositor/compositor.pro index 283ccdf4b..263b9fbdd 100644 --- a/examples/wayland/custom-extension/compositor/compositor.pro +++ b/examples/wayland/custom-extension/compositor/compositor.pro @@ -2,6 +2,10 @@ QT += core gui qml QT += waylandcompositor +CONFIG += qmltypes +QML_IMPORT_NAME = io.qt.examples.customextension +QML_IMPORT_MAJOR_VERSION = 1 + CONFIG += wayland-scanner CONFIG += c++11 SOURCES += \ diff --git a/examples/wayland/custom-extension/compositor/customextension.cpp b/examples/wayland/custom-extension/compositor/customextension.cpp index e6968adc6..0d19a62e2 100644 --- a/examples/wayland/custom-extension/compositor/customextension.cpp +++ b/examples/wayland/custom-extension/compositor/customextension.cpp @@ -8,7 +8,7 @@ #include <QDebug> CustomExtension::CustomExtension(QWaylandCompositor *compositor) - :QWaylandCompositorExtensionTemplate(compositor) + : QWaylandCompositorExtensionTemplate(compositor) { } @@ -19,6 +19,7 @@ void CustomExtension::initialize() init(compositor->display(), 1); } +//! [setFontSize] void CustomExtension::setFontSize(QWaylandSurface *surface, uint pixelSize) { if (surface) { @@ -29,6 +30,7 @@ void CustomExtension::setFontSize(QWaylandSurface *surface, uint pixelSize) } } } +//! [setFontSize] void CustomExtension::showDecorations(QWaylandClient *client, bool shown) { @@ -39,7 +41,6 @@ void CustomExtension::showDecorations(QWaylandClient *client, bool shown) send_set_window_decoration(target->handle, shown); } } - } void CustomExtension::close(QWaylandSurface *surface) @@ -53,6 +54,7 @@ void CustomExtension::close(QWaylandSurface *surface) } } +//! [example_extension_bounce] void CustomExtension::example_extension_bounce(QtWaylandServer::qt_example_extension::Resource *resource, wl_resource *wl_surface, uint32_t duration) { Q_UNUSED(resource); @@ -60,6 +62,7 @@ void CustomExtension::example_extension_bounce(QtWaylandServer::qt_example_exten qDebug() << "server received bounce" << surface << duration; emit bounce(surface, duration); } +//! [example_extension_bounce] void CustomExtension::example_extension_spin(QtWaylandServer::qt_example_extension::Resource *resource, wl_resource *wl_surface, uint32_t duration) { @@ -90,7 +93,6 @@ CustomExtensionObject::CustomExtensionObject(const QString &color, const QString , m_color(color) , m_text(text) { - } void CustomExtensionObject::sendClicked() diff --git a/examples/wayland/custom-extension/compositor/customextension.h b/examples/wayland/custom-extension/compositor/customextension.h index 330199697..e377d5f57 100644 --- a/examples/wayland/custom-extension/compositor/customextension.h +++ b/examples/wayland/custom-extension/compositor/customextension.h @@ -9,14 +9,18 @@ #include <QtWaylandCompositor/QWaylandCompositorExtensionTemplate> #include <QtWaylandCompositor/QWaylandQuickExtension> #include <QtWaylandCompositor/QWaylandCompositor> +#include <QtWaylandCompositor/QWaylandSurface> #include "qwayland-server-custom.h" class CustomExtensionObject; +//! [CustomExtension] class CustomExtension : public QWaylandCompositorExtensionTemplate<CustomExtension> , public QtWaylandServer::qt_example_extension { Q_OBJECT + QML_ELEMENT +//! [CustomExtension] public: CustomExtension(QWaylandCompositor *compositor = nullptr); void initialize() override; @@ -25,7 +29,6 @@ signals: void surfaceAdded(QWaylandSurface *surface); void bounce(QWaylandSurface *surface, uint ms); void spin(QWaylandSurface *surface, uint ms); - void customObjectCreated(CustomExtensionObject *obj); public slots: @@ -33,11 +36,12 @@ public slots: void showDecorations(QWaylandClient *client, bool); void close(QWaylandSurface *surface); +//! [example_extension_bounce] protected: void example_extension_bounce(Resource *resource, wl_resource *surface, uint32_t duration) override; +//! [example_extension_bounce] void example_extension_spin(Resource *resource, wl_resource *surface, uint32_t duration) override; void example_extension_register_surface(Resource *resource, wl_resource *surface) override; - void example_extension_create_local_object(Resource *resource, uint32_t id, const QString &color, const QString &text) override; }; diff --git a/examples/wayland/custom-extension/compositor/main.cpp b/examples/wayland/custom-extension/compositor/main.cpp index a44027229..458f5b9a3 100644 --- a/examples/wayland/custom-extension/compositor/main.cpp +++ b/examples/wayland/custom-extension/compositor/main.cpp @@ -11,15 +11,9 @@ #include "customextension.h" -static void registerTypes() -{ - qmlRegisterType<CustomExtensionQuickExtension>("io.qt.examples.customextension", 1, 0, "CustomExtension"); -} - int main(int argc, char *argv[]) { QGuiApplication app(argc, argv); - registerTypes(); QQmlApplicationEngine appEngine(QUrl("qrc:///qml/main.qml")); return app.exec(); diff --git a/examples/wayland/custom-extension/compositor/qml/CompositorScreen.qml b/examples/wayland/custom-extension/compositor/qml/CompositorScreen.qml index ec70a4373..ea2cb9b16 100644 --- a/examples/wayland/custom-extension/compositor/qml/CompositorScreen.qml +++ b/examples/wayland/custom-extension/compositor/qml/CompositorScreen.qml @@ -9,6 +9,7 @@ WaylandOutput { id: output property alias surfaceArea: background sizeFollowsWindow: true + window: Window { id: screen diff --git a/examples/wayland/custom-extension/compositor/qml/main.qml b/examples/wayland/custom-extension/compositor/qml/main.qml index 7005af841..9907263da 100644 --- a/examples/wayland/custom-extension/compositor/qml/main.qml +++ b/examples/wayland/custom-extension/compositor/qml/main.qml @@ -91,13 +91,14 @@ WaylandCompositor { bounceAnimation.start() } +//! [setFontSize] onFontSizeChanged: { custom.setFontSize(surface, fontSize) } +//! [setFontSize] } } - Component { id: customObjectComponent Rectangle { @@ -107,7 +108,7 @@ WaylandCompositor { width: 100 height: 100 - radius: width/2 + radius: width / 2 x: Math.random() * (defaultOutput.surfaceArea.width - 100) y: Math.random() * (defaultOutput.surfaceArea.height - 100) @@ -138,12 +139,13 @@ WaylandCompositor { var h = defaultOutput.surfaceArea.height / 2 item.x = Math.random() * w item.y = Math.random() * h - var listCopy = itemList; // List properties cannot be modified through Javascript operations + var listCopy = itemList // List properties cannot be modified through Javascript operations listCopy.push(item) itemList = listCopy } } +//! [CustomExtension] CustomExtension { id: custom @@ -151,26 +153,31 @@ WaylandCompositor { var item = itemForSurface(surface) item.isCustom = true } + onBounce: (surface, ms) => { var item = itemForSurface(surface) item.doBounce(ms) } + onSpin: (surface, ms) => { var item = itemForSurface(surface) item.doSpin(ms) } + onCustomObjectCreated: (obj) => { var item = customObjectComponent.createObject(defaultOutput.surfaceArea, - { "color": obj.color, "text": obj.text, "obj": obj } ) + { "color": obj.color, + "text": obj.text, + "obj": obj } ) } } function setDecorations(shown) { var n = itemList.length for (var i = 0; i < n; i++) { - // TODO: we only need to do it once for each client if (itemList[i].isCustom) custom.showDecorations(itemList[i].surface.client, shown) } } +//! [CustomExtension] } diff --git a/examples/wayland/custom-extension/cpp-client/main.cpp b/examples/wayland/custom-extension/cpp-client/main.cpp index d3feae404..c3951ea9d 100644 --- a/examples/wayland/custom-extension/cpp-client/main.cpp +++ b/examples/wayland/custom-extension/cpp-client/main.cpp @@ -6,17 +6,14 @@ #include <QPainter> #include <QMouseEvent> #include <QPlatformSurfaceEvent> - -#include "../client-common/customextension.h" - #include <QDebug> -#include <QtGui/qpa/qplatformnativeinterface.h> #include <QTimer> +#include "../client-common/customextension.h" + class TestWindow : public QRasterWindow { Q_OBJECT - public: TestWindow(CustomExtension *customExtension) : m_extension(customExtension) @@ -25,8 +22,12 @@ public: , rect3(50, 350, 100, 100) , rect4(200,350, 100, 100) { + setTitle(tr("C++ Client")); m_extension->registerWindow(this); + +//! [connection] connect(m_extension, &CustomExtension::fontSize, this, &TestWindow::handleSetFontSize); +//! [connection] } public slots: @@ -39,6 +40,7 @@ public slots: qDebug() << "sending spin..."; m_extension->sendSpin(this, 500); } + void doBounce() { if (!m_extension->isActive()) { @@ -58,7 +60,7 @@ public slots: CustomExtensionObject *newObject() { m_objectCount++; - QColor col = QColor::fromHsv(0, 511/(m_objectCount+1), 255); + QColor col = QColor::fromHsv(0, 511 / (m_objectCount + 1), 255); return m_extension->createCustomObject(col.name(), QString::number(m_objectCount)); } @@ -76,7 +78,7 @@ protected: { QPainter p(this); p.setFont(m_font); - p.fillRect(QRect(0,0,width(),height()),Qt::gray); + p.fillRect(QRect(0, 0, width(), height()), Qt::gray); p.fillRect(rect1, QColor::fromString("#C0FFEE")); p.drawText(rect1, Qt::TextWordWrap, "Press here to send spin request."); p.fillRect(rect2, QColor::fromString("#decaff")); @@ -88,6 +90,7 @@ protected: } +//! [mousePressEvent] void mousePressEvent(QMouseEvent *ev) override { if (rect1.contains(ev->position())) @@ -99,6 +102,7 @@ protected: else if (rect4.contains(ev->position())) newObject(); } +//! [mousePressEvent] private: CustomExtension *m_extension = nullptr; diff --git a/examples/wayland/custom-extension/doc/images/custom-extension.png b/examples/wayland/custom-extension/doc/images/custom-extension.png Binary files differnew file mode 100644 index 000000000..95cddad12 --- /dev/null +++ b/examples/wayland/custom-extension/doc/images/custom-extension.png diff --git a/examples/wayland/custom-extension/doc/src/custom-extension.qdoc b/examples/wayland/custom-extension/doc/src/custom-extension.qdoc new file mode 100644 index 000000000..3b8e9b657 --- /dev/null +++ b/examples/wayland/custom-extension/doc/src/custom-extension.qdoc @@ -0,0 +1,147 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only + +/*! + * \title Custom Extension + * \example custom-extension + * \brief Custom Extension shows how to implement a custom Wayland extension. + * \ingroup qtwaylandcompositor-examples + * + * It's easy to write new extensions for Wayland. They are defined using a XML-based format and + * the \c wayland-scanner tool converts this to glue code in C. Qt expands on this with the + * \c qtwaylandscanner, which generates additional glue code in Qt and C++. + * + * \image custom-extension.png + * + * The Custom Extension example shows how to use these tools to extend the Wayland protocol and + * send custom requests and events between a Wayland client and a server. + * + * The example consists of four items: + * \list + * \li The definition of the protocol itself. + * \li A compositor that supports the extension. + * \li A C++-based client that supports the extension. + * \li A QML-based client that supports the extension. + * \endlist + * + * \section1 The Protocol Definition + * + * The XML file \c custom.xml defines the protocol. It contains an interface called + * "qt_example_extension". This is the name which will be broadcast from the server and which the + * client will attach to in order to send requests and receive events. This name should be unique, + * so it is good to use a prefix that sets it apart from official interfaces. + * + * An interface typically consists of two types of remote procedure calls: + * \e requests and \e events. "Requests" are calls the client makes on the server-side, and + * "events" are calls the server makes on the client-side. + * + * The example extension contains a set of \e requests which instructs the server to apply certain + * transforms to the client window. For instance, if the client sends a "bounce" request, then the + * server should respond to this by making the window bounce on the screen. + * + * Similarly, it has a set of \e events which the server can use to provide instructions for the + * client. For instance, the "set_font_size" event is an instruction for the client to set its + * default font size to a specific size. + * + * The protocol defines the existence of requests and events, as well as the arguments they + * take. When \c qtwaylandscanner is run on it, it will generate the code needed to marshall the + * procedure call and its arguments and to transmit this over the connection. On the other end, this + * becomes a call to a virtual function which can be implemented to provide the actual response. + * + * In order to have \c qtwaylandscanner run automatically as part of the build, we use the + * CMake functions \c qt6_generate_wayland_protocol_server_sources() and + * \c qt6_generate_wayland_protocol_client_sources() for generating the server-side and + * client-side glue code, respectively. (When using \c qmake, the \c WAYLANDSERVERSOURCES and + * \c WAYLANDCLIENTSOURCES variables achieve the same.) + * + * \section1 The Compositor Implementation + * + * The Compositor application itself is implemented using QML and Qt Quick, but the extension is + * implemented in C++. + * + * The first step is to create a subclass of the glue code generated by \c qtwaylandscanner so + * that we can access its functionality. We add the \l QML_ELEMENT macro to the class in order to + * make it accessible from QML. + * + * \snippet custom-extension/compositor/customextension.h CustomExtension + * + * In addition to inheriting from the generated class, we also inherit the class + * \l QWaylandCompositorExtensionTemplate which provides some additional convenience when dealing + * with extensions, using the + * l{https://en.wikipedia.org/wiki/Curiously_recurring_template_pattern}{Curiously Recurring Template Pattern}. + * + * Note that the \l QWaylandCompositorExtensionTemplate must be first in the inheritance list, since + * it is a \l{QObject}-based class. + * + * The subclass has re-implementations of virtual functions in the generated base class, where + * we can handle requests issued by a client. + * + * \snippet custom-extension/compositor/customextension.h example_extension_bounce + * + * In these re-implementations, we simply translate the request to a \e signal emission, so that we + * can handle it in the actual QML code of the compositor. + * + * \snippet custom-extension/compositor/customextension.cpp example_extension_bounce + * + * In addition, the subclass defines \e slots for each of the events, so that these can be either + * called from QML or be connected to signals. The slots simply call the generated functions which + * send the events to the client. + * + * \snippet custom-extension/compositor/customextension.cpp setFontSize + * + * Since we added the \l QML_ELEMENT macro to the class definition (and added the corresponding + * build steps to the build system files), it can be instantiated in QML. + * + * We make it a direct child of the \l WaylandCompositor object in order for the compositor to + * register it as an extension. + * + * \snippet custom-extension/compositor/qml/main.qml CustomExtension + * + * The object has signal handlers for the requests it may get from the client and reacts to them + * accordingly. In addition, we can call its slots to send events. + * + * \snippet custom-extension/compositor/qml/main.qml setFontSize + * + * \section1 The C++ Client Implementation + * + * Both clients share the C++ implementation of the interface. Like in the compositor, we make + * a subclass of the generated code which also inherits from a template class. In this case, + * we inherit QWaylandClientExtensionTemplate. + * + * \snippet custom-extension/client-common/customextension.h CustomExtension + * + * The approach is very similar to that of the compositor, except inverted: Requests are implemented + * as slots which call the generated functions, and events virtual functions which we re-implement + * to emit signals. + * + * \snippet custom-extension/client-common/customextension.cpp sendBounce + * + * The client code itself is very simple and only intended to show how to trigger the behavior. In + * a custom paint event, it draws a set of rectangles and labels. When any of these are clicked, it + * issues requests to the server. + * + * \snippet custom-extension/cpp-client/main.cpp mousePressEvent + * + * To update the font size when the \c set_font_size event is received, the signal in our extension + * class is connected to a slot. + * + * \snippet custom-extension/cpp-client/main.cpp connection + * + * The slot will update the font size and repaint the window. + * + * \section1 The QML Client Implementation + * + * The QML client is similar to the C++ client. It relies on the same implementation of the custom + * extension as the C++ client, and instantiates this in QML to enable it. + * + * \snippet custom-extension/qml-client/main.qml CustomExtension + * + * The UI consists of some clickable rectangles, and uses \l TapHandler to send the corresponding + * requests when a rectangle is clicked. + * + * \snippet custom-extension/qml-client/main.qml sendBounce + * + * For simplicity, the example has been limited to only demonstrate the \c bounce and \c spin + * requests as well as the \c set_font_size event. Adding support for the additional features is + * left as an exercise for the reader. + */ diff --git a/examples/wayland/custom-extension/qml-client/CMakeLists.txt b/examples/wayland/custom-extension/qml-client/CMakeLists.txt index 30c6c90d1..1ac276c2a 100644 --- a/examples/wayland/custom-extension/qml-client/CMakeLists.txt +++ b/examples/wayland/custom-extension/qml-client/CMakeLists.txt @@ -14,6 +14,7 @@ set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/wayland/custom-extension/qml-clie find_package(Qt6 REQUIRED COMPONENTS Core Gui Qml Quick WaylandClient) +qt6_policy(SET QTP0001 NEW) qt_add_executable(custom-extension-qml-client ../client-common/customextension.cpp ../client-common/customextension.h main.cpp @@ -50,6 +51,13 @@ qt6_add_resources(custom-extension-qml-client "qml" ${qml_resource_files} ) +target_include_directories(custom-extension-qml-client PUBLIC ../client-common/) + +qt6_add_qml_module(custom-extension-qml-client + URI io.qt.examples.customextension + VERSION 1.0 +) + install(TARGETS custom-extension-qml-client RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}" BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}" diff --git a/examples/wayland/custom-extension/qml-client/main.cpp b/examples/wayland/custom-extension/qml-client/main.cpp index 3fcc05fad..126c6b915 100644 --- a/examples/wayland/custom-extension/qml-client/main.cpp +++ b/examples/wayland/custom-extension/qml-client/main.cpp @@ -1,19 +1,16 @@ // Copyright (C) 2017 Erik Larsson. // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause -#include <QGuiApplication> +#include <QtGui/QGuiApplication> #include <QtQml/QQmlApplicationEngine> - -#include <QtQml/qqml.h> #include <QtQml/QQmlEngine> + #include "../client-common/customextension.h" int main(int argc, char *argv[]) { QGuiApplication app(argc, argv); - qmlRegisterType<CustomExtension>("io.qt.examples.customextension", 1, 0, "CustomExtension"); - QQmlApplicationEngine engine; engine.load(QUrl(QStringLiteral("qrc:/main.qml"))); diff --git a/examples/wayland/custom-extension/qml-client/main.qml b/examples/wayland/custom-extension/qml-client/main.qml index 6ceefda2f..da81055bc 100644 --- a/examples/wayland/custom-extension/qml-client/main.qml +++ b/examples/wayland/custom-extension/qml-client/main.qml @@ -1,4 +1,5 @@ // Copyright (C) 2017 Erik Larsson. +// Copyright (C) 2023 The Qt Company Ltd. // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause import QtQuick @@ -7,59 +8,84 @@ import io.qt.examples.customextension Window { id: topLevelWindow - - property alias textItem: bounceText - title: "QML Client" visible: true + width: 800 + height: 600 - Rectangle { - anchors.fill: parent - color: "#f1eece" - } + property real fontSize: height / 50 - Text { - id: bounceText - text: "press here to bounce" - } + Column { + anchors.centerIn: parent + width: topLevelWindow.width / 4 + height: 2 * (width + topLevelWindow.height / 12) + spacing: topLevelWindow.height / 12 - MouseArea { - anchors.fill: parent - onClicked: { - if (customExtension.active) - customExtension.sendBounce(topLevelWindow, 1000) - } - } + Rectangle { + id: rect1 + color: "#C0FFEE" + width: parent.width + height: width + clip: true - MouseArea { - anchors.centerIn: parent - width: 100; height: 100 - onClicked: { - if (customExtension.active) - customExtension.sendSpin(topLevelWindow, 500) + Text { + anchors.centerIn: parent + text: "Press here to send spin request." + font.pixelSize: fontSize + width: parent.width + height: parent.height + horizontalAlignment: Text.AlignHCenter + verticalAlignment: Text.AlignVCenter + wrapMode: Text.WrapAtWordBoundaryOrAnywhere + } + + TapHandler { + onTapped: { + if (customExtension.active) + customExtension.sendSpin(topLevelWindow, 500) + } + } } Rectangle { - anchors.fill: parent - color: "#fab1ed" + id: rect2 + color: "#decaff" + width: parent.width + height: parent.height / 2 + clip: true + Text { - text: "spin" + anchors.centerIn: parent + text: "Press here to send bounce request." + font.pixelSize: fontSize + width: parent.width + height: parent.height + horizontalAlignment: Text.AlignHCenter + verticalAlignment: Text.AlignVCenter + wrapMode: Text.WrapAtWordBoundaryOrAnywhere + } + +//! [sendBounce] + TapHandler { + onTapped: { + if (customExtension.active) + customExtension.sendBounce(topLevelWindow, 1000) + } } +//! [sendBounce] } } +//! [CustomExtension] CustomExtension { id: customExtension onActiveChanged: { - console.log("Custom extension is active:", active) registerWindow(topLevelWindow) } onFontSize: (window, pixelSize) => { - // signal arguments: window and pixelSize - // we are free to interpret the protocol as we want, so - // let's change the font size of just one of the text items - window.textItem.font.pixelSize = pixelSize + topLevelWindow.fontSize = pixelSize } } +//! [CustomExtension] } diff --git a/examples/wayland/custom-extension/qml-client/qml-client.pro b/examples/wayland/custom-extension/qml-client/qml-client.pro index bad4af2db..8bddb730b 100644 --- a/examples/wayland/custom-extension/qml-client/qml-client.pro +++ b/examples/wayland/custom-extension/qml-client/qml-client.pro @@ -2,6 +2,12 @@ TEMPLATE = app QT += qml quick waylandclient gui-private CONFIG += wayland-scanner +CONFIG += qmltypes +QML_IMPORT_NAME = io.qt.examples.customextension +QML_IMPORT_MAJOR_VERSION = 1 + +INCLUDEPATH += $$PWD/../client-common + WAYLANDCLIENTSOURCES += ../protocol/custom.xml SOURCES += main.cpp \ |
