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QWindowKit

Cross-platform window customization framework for Qt Widgets and Qt Quick. Support Windows, macOS, Linux.

This project inherited most of wangwenx190 FramelessHelper implementation, with a complete refactoring and upgrading of the architecture.

TODO

  • Fix 5.15 window unsupported behavior
  • Fix window 10 top border color in dark background
  • Fix isFixedSize code
  • Support customized system button area on Mac
  • Make Linux system move/resize more robust
  • Fix unhandled WinIdChange when adding a QWebEngineView as sub-widget (Win32 and Qt fixed)

Supported Platforms

  • Microsoft Windows (Vista ~ 11)
  • Apple Mac OSX (11+)
  • GNU/Linux (Tested on Ubuntu)

Requirements

Component Requirement Detailed
Qt >=5.15 Core, Gui, Widgets, Quick
Compiler >=C++17 MSVC 2019, GCC, Clang
CMake >=3.17 >=3.20 is recommended

Tested Compilers

  • Windows
  • MSVC: 2019, 2022
  • MinGW: 13.2.0
  • MacOSX
  • Clang 14.0.3
  • Ubuntu
  • GCC: 9.4.0

Dependencies

Integrate

Build & Install

cmake -B build \
  -Dqmsetup_DIR=<dir> \ # Optional
  -DCMAKE_INSTALL_PREFIX=/path/install \
  -G "Ninja Multi-Config"

cmake --build build --target install --config Debug
cmake --build build --target install --config Release

You can also include this directory as a sub-project if you choose CMake as your build system.

For other build systems, you need to install with CMake first and include the corresponding configuration files in your project.

Import

CMake Project

cmake -B build -DQWindowKit_DIR=/path/install/cmake/QWindowKit
find_package(QWindowKit REQUIRED)
taraget_link_libraries(widgets_app PUBLIC QWindowKit::Widgets)
taraget_link_libraries(quick_app PUBLIC QWindowKit::Quick)

QMake Project

# WidgetsApp.pro
include("/path/install/share/QWindowKit/qmake/QWKWidgets.pri")

# QuickApp.pro
include("/path/install/share/QWindowKit/qmake/QWKQuick.pri")

Visual Studio Project

TODO

Quick Start

Qt Widgets Application

First, setup WidgetWindowAgent for your QWidget instance. (Each widget needs its own agent.)

auto w = new MyWidget();
auto agent = new WidgetWindowAgent(w);
agent->setup(w);

You can also initialize the agent in the widget constructor.

MyWidget::MyWidget(QWidget *parent) {
    // ...
    auto agent = new WidgetWindowAgent(w);
    agent->setup(w);
}

Then, construct your titlebar widget, without which the window is lacking in basic interaction feature. You can use the WindowBar provided by WidgetFrame in the examples as the container for your titlebar components.

auto titleLabel = new QLabel();
auto menuBar = new QMenuBar();

auto windowBar = new QWK::WindowBar();
windowBar->setMenuBar(menuBar);
windowBar->setTitleLabel(titleLabel);
windowBar->setHostWidget(this);

auto iconButton = new QPushButton("😄");
auto minButton = new QPushButton("─");
auto maxButton = new QPushButton("▢");
auto closeButton = new QPushButton("✕");
agent->setSystemButton(QWK::WindowAgentBase::WindowIcon, iconButton);
agent->setSystemButton(QWK::WindowAgentBase::Minimize, minButton);
agent->setSystemButton(QWK::WindowAgentBase::Maximize, maxButton);
agent->setSystemButton(QWK::WindowAgentBase::Close, closeButton);

Qt Quick Application

TODO

Learn More

See examples for more demo use cases. The examples has no High DPI support.

Documentatons

License

QWindowKit is licensed under the Apache 2.0 License.