[英]Making a borderless window with for Qt
我是 Qt C++ 的新手。 我下載了最新的 Windows 版本,做了一些教程,效果很好。
我看到了 Qt 框架具有的一些樣式選項並且它很棒,但是現在我需要構建我的應用程序,它的主窗口(窗體)是用沒有矩形邊框(無邊框?)的圖像設計/蒙皮的。
我怎樣才能用 Qt 做到這一點?
如果您正在尋找小部件形狀的一些高級樣式,也許這個例子會對您有所幫助:
或者,也許您只是在尋找這種標志: Qt::CustomizeWindowHint
或只是Qt::FramelessWindowHint
。
我創建了一個小例子,說明如何在 Qt5 中創建類似 VS2013 的無框窗口:
你可以在這里獲得完整的資源: https : //github.com/Jorgen-VikingGod/Qt-Frameless-Window-DarkStyle
否則這里是如何將“主”主窗口嵌入“無框架”窗口的代碼概述。 您還可以看到如何添加標題欄、按鈕以及如何最大化、調整大小和移動無框窗口。
主窗口.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QtWidgets>
/*
place your QMainWindow code here
*/
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private:
Ui::MainWindow *ui;
};
/*
this class is to add frameless window supoort and do all the stuff with titlebar and buttons
*/
class BorderlessMainWindow: public QMainWindow
{
Q_OBJECT
public:
explicit BorderlessMainWindow(QWidget *parent = 0);
~BorderlessMainWindow() {}
protected:
void mouseMoveEvent(QMouseEvent* event);
void mousePressEvent(QMouseEvent* event);
void mouseReleaseEvent(QMouseEvent* event);
void mouseDoubleClickEvent(QMouseEvent *event);
private slots:
void slot_minimized();
void slot_restored();
void slot_maximized();
void slot_closed();
private:
MainWindow *mMainWindow;
QWidget *mTitlebarWidget;
QLabel *mWindowTitle;
QPushButton *mMinimizeButton;
QPushButton *mRestoreButton;
QPushButton *mMaximizeButton;
QPushButton *mCloseButton;
QPoint mLastMousePosition;
bool mMoving;
bool mMaximized;
};
#endif // MAINWINDOW_H
主窗口.cpp
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QDebug>
/*
frameless window class: it adds the MainWindow class inside the centralWidget
*/
BorderlessMainWindow::BorderlessMainWindow(QWidget *parent) : QMainWindow(parent, Qt::CustomizeWindowHint ) {
setObjectName("borderlessMainWindow");
setWindowFlags(Qt::FramelessWindowHint| Qt::WindowSystemMenuHint);
// to fix taskbar minimize feature
setWindowFlags(windowFlags() | Qt::WindowMinimizeButtonHint);
mMainWindow = new MainWindow(this);
setWindowTitle(mMainWindow->windowTitle());
QVBoxLayout *verticalLayout = new QVBoxLayout();
verticalLayout->setSpacing(0);
verticalLayout->setMargin(1);
QHBoxLayout *horizontalLayout = new QHBoxLayout();
horizontalLayout->setSpacing(0);
horizontalLayout->setMargin(0);
mTitlebarWidget = new QWidget(this);
mTitlebarWidget->setObjectName("titlebarWidget");
mTitlebarWidget->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
mTitlebarWidget->setLayout(horizontalLayout);
mMinimizeButton = new QPushButton(mTitlebarWidget);
mMinimizeButton->setObjectName("minimizeButton");
connect(mMinimizeButton, SIGNAL(clicked()), this, SLOT(slot_minimized()));
mRestoreButton = new QPushButton(mTitlebarWidget);
mRestoreButton->setObjectName("restoreButton");
mRestoreButton->setVisible(false);
connect(mRestoreButton, SIGNAL(clicked()), this, SLOT(slot_restored()));
mMaximizeButton = new QPushButton(mTitlebarWidget);
mMaximizeButton->setObjectName("maximizeButton");
connect(mMaximizeButton, SIGNAL(clicked()), this, SLOT(slot_maximized()));
mCloseButton = new QPushButton(mTitlebarWidget);
mCloseButton->setObjectName("closeButton");
connect(mCloseButton, SIGNAL(clicked()), this, SLOT(slot_closed()));
mWindowTitle = new QLabel(mTitlebarWidget);
mWindowTitle->setObjectName("windowTitle");
mWindowTitle->setText(windowTitle());
horizontalLayout->addWidget(mWindowTitle);
horizontalLayout->addStretch(1);
horizontalLayout->addWidget(mMinimizeButton);
horizontalLayout->addWidget(mRestoreButton);
horizontalLayout->addWidget(mMaximizeButton);
horizontalLayout->addWidget(mCloseButton);
verticalLayout->addWidget(mTitlebarWidget);
verticalLayout->addWidget(mMainWindow);
QWidget *centralWidget = new QWidget(this);
centralWidget->setObjectName("centralWidget");
centralWidget->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
centralWidget->setLayout(verticalLayout);
setCentralWidget(centralWidget);
}
void BorderlessMainWindow::mousePressEvent(QMouseEvent* event) {
if (!mTitlebarWidget->underMouse() && !mWindowTitle->underMouse())
return;
if(event->button() == Qt::LeftButton) {
mMoving = true;
mLastMousePosition = event->pos();
}
}
void BorderlessMainWindow::mouseMoveEvent(QMouseEvent* event) {
if (!mTitlebarWidget->underMouse() && !mWindowTitle->underMouse())
return;
if( event->buttons().testFlag(Qt::LeftButton) && mMoving) {
this->move(this->pos() + (event->pos() - mLastMousePosition));
}
}
void BorderlessMainWindow::mouseReleaseEvent(QMouseEvent* event) {
if (!mTitlebarWidget->underMouse() && !mWindowTitle->underMouse())
return;
if(event->button() == Qt::LeftButton) {
mMoving = false;
}
}
void BorderlessMainWindow::mouseDoubleClickEvent(QMouseEvent *event) {
Q_UNUSED(event);
if (!mTitlebarWidget->underMouse() && !mWindowTitle->underMouse())
return;
mMaximized = !mMaximized;
if (mMaximized) {
slot_maximized();
} else {
slot_restored();
}
}
void BorderlessMainWindow::slot_minimized() {
setWindowState(Qt::WindowMinimized);
}
void BorderlessMainWindow::slot_restored() {
mRestoreButton->setVisible(false);
mMaximizeButton->setVisible(true);
setWindowState(Qt::WindowNoState);
setStyleSheet("#borderlessMainWindow{border:1px solid palette(highlight);}");
}
void BorderlessMainWindow::slot_maximized() {
mRestoreButton->setVisible(true);
mMaximizeButton->setVisible(false);
setWindowState(Qt::WindowMaximized);
setStyleSheet("#borderlessMainWindow{border:1px solid palette(base);}");
}
void BorderlessMainWindow::slot_closed() {
close();
}
/*
MainWindow class: put all your code here
*/
MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent, Qt::FramelessWindowHint), ui(new Ui::MainWindow) {
ui->setupUi(this);
statusBar()->setSizeGripEnabled(true);
}
MainWindow::~MainWindow() {
delete ui;
}
Qt 目錄中有一個示例應用程序: examples/widgets/windowsflags
。
我自己遇到了這個問題,並在一段時間后弄清楚了。 查看https://github.com/ianbannerman/TrueFramelessWindow獲取適用於 Windows 和 macOS 的示例代碼。
Qt::FramelessWindowHint 犧牲了調整大小和最小/最大/關閉,所以可能不是人們正在尋找的。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.