我想创建一个没有标题栏的应用程序,但具有本机关闭、最小化和最大化按钮。这就是布局的意图:
该应用程序是使用 Go 和 QML 构建的。我可以通过添加删除标题栏:
flags: Qt.FramelessWindowHint | Qt.Window
但这意味着我必须重新创建各种本机行为,例如窗口移动和调整大小。我还手动重新创建关闭/最小化/全屏按钮,但这意味着我失去了各种本机操作系统行为,例如 Windows 中的窗口捕捉或 Mac 上的缩放选项。
有更好的方法吗?是否至少可以创建本机最大-最小-关闭按钮而不是从头开始构建它?
谢谢大家
您可以使用 Objective-C 来正确设置您的窗口。这可能有点问题,但我通过这个解决了它(创建一个单独的 .mm 类):
#include "macwindow.h"
#include <Cocoa.h>
MacWindow::MacWindow(long winid)
{
NSView *nativeView = reinterpret_cast<NSView *>(winid);
NSWindow* nativeWindow = [nativeView window];
[nativeWindow setStyleMask:[nativeWindow styleMask] | NSFullSizeContentViewWindowMask | NSWindowTitleHidden];
[nativeWindow setTitlebarAppearsTransparent:YES];
[nativeWindow setMovableByWindowBackground:YES];
}
在你的 main.cpp 中,你需要像这样传递窗口 id:
#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QWindow>
#include "macwindow.h"
int main(int argc, char *argv[])
{
QGuiApplication app(argc, argv);
QQmlApplicationEngine engine;
engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
QWindowList windows = QGuiApplication::allWindows();
QWindow* win = windows.first();
MacWindow* mac = new MacWindow(win->winId());
return app.exec();
}
在您的 .pro 文件中,您需要添加 Cocoa 引用:
macx:LIBS += -framework Foundation -framework Cocoa
macx:INCLUDEPATH += /System/Library/Frameworks/Foundation.framework/Versions/C/Headers \
/System/Library/Frameworks/AppKit.framework/Headers \
/System/Library/Frameworks/Cocoa.framework/Headers
不知道为什么,但我必须添加一个带有焦点属性的 TextEdit 才能正确绘制窗口,否则它看起来只是黑色(我的 main.qml):
import QtQuick 2.5
import QtQuick.Window 2.2
import QtQuick.Controls 1.4
ApplicationWindow {
visible: true
color: "white"
width: 600
height: 400
minimumWidth: width
minimumHeight: height
maximumWidth: width
maximumHeight: height
Rectangle {
anchors.fill: parent
color: "white"
TextEdit {
opacity: 0
focus: true
}
}
}
我的解决方案(基于 Eduard 的解决方案,进行调整,使窗口可拖动)。
(完整源代码https://github.com/teimuraz/qt-macos-without-title)
创建macos.h和macos.mm文件(如果使用qt Creator创建,则将macos.cpp重命名为macos.mm)
macos.h
#ifndef MACOS_H
#define MACOS_H
#include <QGuiApplication>
#include <QWindow>
class MacOS {
MacOS(long winid);
public:
static void removeTitlebarFromWindow(long winId = -1);
};
#endif // MACOS_H
macos.mm
#include "macos.h"
#include <Cocoa/Cocoa.h>
#include <QGuiApplication>
#include <QWindow>
void MacOS::removeTitlebarFromWindow(long winId)
{
if(winId == -1) {
QWindowList windows = QGuiApplication::allWindows();
QWindow* win = windows.first();
winId = win->winId();
}
NSView *nativeView = reinterpret_cast<NSView *>(winId);
NSWindow* nativeWindow = [nativeView window];
[nativeWindow setStyleMask:[nativeWindow styleMask] | NSFullSizeContentViewWindowMask | NSWindowTitleHidden];
[nativeWindow setTitlebarAppearsTransparent:YES];
[nativeWindow setMovableByWindowBackground:YES];
}
main.qml
import QtQuick
import QtQuick.Controls
ApplicationWindow {
id: mainWindow
visible: true
width: 640
height: 480
// Make windows draggable, currently whole windows area is draggable, but can be adjusted to make draggable only top area
property int previousX
property int previousY
MouseArea {
anchors {
top: parent.top
bottom: parent.bottom
left: parent.left
right: parent.right
}
onPressed: {
previousX = mouseX
previousY = mouseY
}
onMouseXChanged: {
var dx = mouseX - previousX
mainWindow.setX(mainWindow.x + dx)
}
onMouseYChanged: {
var dy = mouseY - previousY
mainWindow.setY(mainWindow.y + dy)
}
}
}
main.cpp
只需添加
MacWindow::removeTitlebarFromWindow();
#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include "macos.h"
int main(int argc, char *argv[])
{
QGuiApplication app(argc, argv);
QQmlApplicationEngine engine;
const QUrl url(u"qrc:/qt-macos-without-title/main.qml"_qs);
QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
&app, [url](QObject *obj, const QUrl &objUrl) {
if (!obj && url == objUrl)
QCoreApplication::exit(-1);
}, Qt::QueuedConnection);
engine.load(url);
MacOS::removeTitlebarFromWindow();
return app.exec();
}
最后在 .pro 文件中包含 cocoa lib
yourapp.pro
...
macx:LIBS += -framework Foundation -framework Cocoa
macx:INCLUDEPATH += /System/Library/Frameworks/Foundation.framework/Versions/C/Headers \
/System/Library/Frameworks/AppKit.framework/Headers \
/System/Library/Frameworks/Cocoa.framework/Headers
我用你的方法成功去掉了系统标题栏,但是遇到了一个问题,当向窗口添加QTabBar控件时,原生系统标题栏又会出现,我该如何解决?