{"id":78713,"date":"2026-02-27T23:40:45","date_gmt":"2026-02-27T15:40:45","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/78713.html"},"modified":"2026-02-27T23:40:45","modified_gmt":"2026-02-27T15:40:45","slug":"qt%e8%87%aa%e5%ae%9a%e4%b9%89%e6%8e%a7%e4%bb%b6%e5%ae%9e%e7%8e%b0%ef%bc%88%e8%b6%85%e8%af%a6%e7%bb%86%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/78713.html","title":{"rendered":"Qt\u81ea\u5b9a\u4e49\u63a7\u4ef6\u5b9e\u73b0\uff08\u8d85\u8be6\u7ec6\uff09"},"content":{"rendered":"

\u5728 Qt6 \u4e2d，\u81ea\u5b9a\u4e49\u63a7\u4ef6\u53ef\u4ee5\u901a\u8fc7\u7ee7\u627f\u73b0\u6709\u63a7\u4ef6\u7c7b\u6216\u7ec4\u5408\u591a\u4e2a\u63a7\u4ef6\u6765\u5b9e\u73b0，\u4ece\u800c\u6ee1\u8db3\u7279\u5b9a\u7684 UI \u9700\u6c42\u5e76\u63d0\u9ad8\u4ee3\u7801\u590d\u7528\u6027\u3002\u5e38\u89c1\u65b9\u5f0f\u5305\u62ec\u76f4\u63a5\u4ee3\u7801\u5b9e\u73b0\u548c\u5728 Qt Designer \u4e2d\u4f7f\u7528\u201c\u63d0\u5347\u201d\u529f\u80fd\u3002<\/p>\n

\u65b9\u5f0f1：Qt Designer \u63d0\u5347\u6cd5<\/h3>\n

1.\u53f3\u952e\u9879\u76ee，\u6dfb\u52a0\u4e00\u4e2aQt Widgets Designer Form Class<\/p>\n

\"\"<\/p>\n

2.\u65b0\u5efa\u4e00\u4e2a\u540d\u4e3aSmallWidget\u7684ui\u7c7b，\u7136\u540e\u53cc\u51fbui\u6587\u4ef6\u6253\u5f00Qt Designer\u8fdb\u884c\u754c\u9762\u7f16\u8f91，\u62d6\u52a8\u60f3\u8981\u7684\u63a7\u4ef6\u5230\u754c\u9762\u4e0a<\/p>\n

\"\"<\/p>\n

3.\u9009\u4e2dSmallWidget\u8bbe\u7f6e\u5e03\u5c40，\u7136\u540e\u5c5e\u6027\u7f16\u8f91\u5668\u4e2d\u8c03\u6574margin\u5747\u4e3a0，\u7f29\u653eSmallWidget\u81f3\u60f3\u8981\u7684\u5927\u5c0f\u3002<\/p>\n

\"\"<\/p>\n

4.\u7b2c\u4e09\u6b65\u5b8c\u6210\u540e\u5176\u5b9e\u5c31\u53ef\u4ee5\u53c2\u8003\u4ee5\u4e0b\u4ee3\u7801\u4f7f\u7528\u8fd9\u4e2a\u63a7\u4ef6\u4e86，\u4f46\u662f\u5c40\u9650\u662f\u4e0d\u80fd\u5728Qt Designer\u4e2d\u8fdb\u884c\u62d6\u62fd，\u800c\u4e14\u8981\u624b\u52a8\u5b9e\u73b0\u5e03\u5c40，\u5f00\u53d1\u6548\u7387\u4f4e\u4e0b\u3002<\/p>\n

#include "widget.h"
\n#include ".\/ui_widget.h"
\n#include <QVBoxLayout>
\n#include "SmallWidget.h"
\nWidget::Widget(QWidget *parent)
\n : QWidget(parent)
\n , ui(new Ui::Widget)
\n{
\n ui->setupUi(this);
\n QVBoxLayout *vbox=new QVBoxLayout(this);
\n SmallWidget *myWidget=new SmallWidget(this);
\n vbox->addWidget(myWidget);
\n}<\/p>\n

Widget::~Widget()
\n{
\n delete ui;
\n}<\/p>\n

\u6548\u679c：<\/p>\n

\"\"<\/p>\n

5.\u7ee7\u7eed\u6211\u4eec\u7684\u63d0\u5347\u6cd5，\u53cc\u51fb\u6253\u5f00\u9700\u8981\u4f7f\u7528SmallWidget\u63a7\u4ef6\u7684ui\u754c\u9762<\/p>\n

\"\"<\/p>\n

6.\u4ece\u5de6\u4fa7\u62d6\u52a8\u4e00\u4e2aWidget\u63a7\u4ef6\u5230ui\u4e0a\u4f5c\u4e3a\u4e00\u4e2a\u5360\u4f4d\u63a7\u4ef6，\u540e\u7eed\u8fd9\u4e2a\u5360\u4f4d\u63a7\u4ef6\u4f1a\u88ab\u63d0\u5347\u540e\u7684\u63a7\u4ef6\u4ee3\u66ff\u3002<\/p>\n

\"\"<\/p>\n

7.\u53f3\u952e\u8fd9\u4e2awidget，\u70b9\u51fb\u63d0\u5347\u4e3a…<\/p>\n

\"\"<\/p>\n

8.\u57fa\u7c7b\u540d\u79f0\u9009\u62e9QWidget，\u63d0\u5347\u7684\u7c7b\u540d\u79f0\u548c\u5934\u6587\u4ef6\u4e0e\u63a7\u4ef6\u7c7bSmallWidget\u4e00\u81f4，\u7136\u540e\u70b9\u51fb\u6dfb\u52a0<\/p>\n

\u6ce8\u610f\u4e8b\u9879：\u81ea\u5b9a\u4e49\u63a7\u4ef6SmallWidget\u7684\u76f4\u63a5\u7236\u7c7b（\u57fa\u7c7b\u540d\u79f0,\u8fd9\u91cc\u662fQWidget）\u5fc5\u987b\u548c\u5360\u4f4d\u63a7\u4ef6\u7684\u7c7b\u578b(\u8fd9\u91cc\u662fQWidget)\u662f \u201c\u7236\u5b50\u5173\u7cfb\u201d（\u5360\u4f4d\u63a7\u4ef6\u53ef\u4ee5\u662f\u57fa\u7c7b\u672c\u8eab，\u6216\u57fa\u7c7b\u7684\u7236\u7c7b，\u5982\u57fa\u7c7b\u662fQPushButton,\u5360\u4f4d\u63a7\u4ef6\u53ef\u4ee5\u662fQWidget），\u4e14\u57fa\u7c7b\u540d\u79f0（\u8fd9\u91cc\u662fQWidget）\u8981\u548c\u81ea\u5b9a\u4e49\u63a7\u4ef6(SmallWidget)\u7684\u7236\u7c7b(QWidget)\u5b8c\u5168\u4e00\u81f4；<\/p>\n

\u6700\u4f73\u5b9e\u8df5：\u81ea\u5b9a\u4e49\u63a7\u4ef6\u57fa\u7c7b，\u5360\u4f4d\u63a7\u4ef6\u7c7b\u578b，\u57fa\u7c7b\u540d\u79f0 \u4e09\u8005\u4fdd\u6301\u4e00\u81f4，\u7edd\u5bf9\u4e0d\u4f1a\u51fa\u9519\u3002<\/p>\n

\"\"<\/p>\n

9.\u9009\u4e2d\u8be5\u63a7\u4ef6\u7c7b，\u70b9\u51fb\u63d0\u5347<\/p>\n

\"\"<\/p>\n

10.\u6b64\u65f6\u8fd9\u4e2aQWidget\u7c7b\u53d8\u6210\u4e86SmallWidget\u7c7b，\u63d0\u5347\u6cd5\u6210\u529f\u4e86<\/p>\n

\"\"<\/p>\n

11.\u70b9\u51fb\u7f16\u8bd1\u8fd0\u884c，\u53d1\u73b0\u51fa\u73b0\u5982\u4e0b\u62a5\u9519，\u539f\u56e0\u662f\u7f16\u8bd1\u5668\u6ca1\u6709\u627e\u5230\u5934\u6587\u4ef6，\u9700\u8981\u5728\u5de5\u7a0b\u6587\u4ef6CMakeList.txt\u4e2d\u6dfb\u52a0\u4e0b\u9762\u51e0\u884c\u4ee3\u7801\u3002<\/p>\n

\"\"<\/p>\n

include_directories(
\n ${CMAKE_SOURCE_DIR} # \u5982\u679c\u5934\u6587\u4ef6\u5728\u6839\u76ee\u5f55，\u5373\u5de5\u7a0b\u6587\u4ef6\u540c\u7ea7\u76ee\u5f55
\n # ${CMAKE_SOURCE_DIR}\/src # \u5982\u679c\u5934\u6587\u4ef6\u5728src\u5b50\u76ee\u5f55（\u6839\u636e\u5b9e\u9645\u8def\u5f84\u8c03\u6574）
\n # \u5982\u6709\u5176\u4ed6\u76ee\u5f55，\u7ee7\u7eed\u6dfb\u52a0：${CMAKE_SOURCE_DIR}\/controls
\n)<\/p>\n

12.\u91cd\u65b0\u7f16\u8bd1，\u8fd0\u884c\u6210\u529f，\u539f\u6765widget\u7684\u4f4d\u7f6e\u53d8\u6210\u4e86\u81ea\u5b9a\u4e49\u7684SmallWidget<\/p>\n

\"\"<\/p>\n

13.\u540e\u7eed\u53ef\u4ee5\u7ee7\u7eed\u5c06\u591a\u4e2awidget\u62d6\u52a8\u81f3ui\u754c\u9762，\u7136\u540e\u5bf9\u591a\u4e2a\u540c\u65f6\u8fdb\u884c\u63d0\u5347（\u4e4b\u524d\u63d0\u5347\u8fc7\u7684\u63a7\u4ef6\u65e0\u9700\u518d\u6dfb\u52a0）<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

14.\u7f16\u8bd1\u8fd0\u884c，\u53d1\u73b04\u4e2awidget\u90fd\u6210\u529f\u88ab\u63d0\u5347\u6210\u4e86SmallWidget<\/p>\n

\"\"<\/p>\n

15.\u6b64\u65f6\u6211\u4eec\u53ef\u4ee5\u7f16\u8f91SmallWidget\u7c7b\u6587\u4ef6，\u4e3a\u8fd9\u4e2a\u9759\u6001\u7684\u63a7\u4ef6\u6dfb\u52a0\u4e00\u4e9b\u7b80\u5355\u7684\u529f\u80fd，\u5b9e\u73b0slider\u548cspanBox\u4fdd\u6301\u6570\u636e\u540c\u6b65（\u6539\u53d8spanBox\u65f6slider\u4f1a\u540c\u6b65\u6539\u53d8，\u62d6\u52a8slider\u65f6spanBox\u4e5f\u4f1a\u540c\u6b65\u8be5\u767e\u5e74）<\/p>\n

#include "SmallWidget.h"
\n#include "ui_SmallWidget.h"<\/p>\n

SmallWidget::SmallWidget(QWidget *parent)
\n : QWidget(parent)
\n , ui(new Ui::SmallWidget)
\n{
\n ui->setupUi(this);
\n connect(ui->spinBox,&QSpinBox::valueChanged,ui->horizontalSlider,&QSlider::setSliderPosition);
\n connect(ui->horizontalSlider,&QSlider::valueChanged,ui->spinBox,&QSpinBox::setValue);
\n}<\/p>\n

SmallWidget::~SmallWidget()
\n{
\n delete ui;
\n}<\/p>\n

16.\u7f16\u8bd1\u8fd0\u884c，\u6548\u679c\u5982\u4e0b：<\/p>\n

\"\"<\/p>\n

17.\u540c\u65f6\u8fd8\u53ef\u4ee5\u6dfb\u52a0\u4e00\u4e9b\u4fe1\u53f7\u69fd\u53ef\u4ee5\u4f9b\u5916\u90e8\u4f7f\u7528:<\/p>\n

\/\/SmallWidget.h
\n#ifndef SMALLWIDGET_H
\n#define SMALLWIDGET_H<\/p>\n

#include <QWidget><\/p>\n

namespace Ui {
\nclass SmallWidget;
\n}<\/p>\n

class SmallWidget : public QWidget
\n{
\n Q_OBJECT<\/p>\n

public:
\n explicit SmallWidget(QWidget *parent = nullptr);
\n ~SmallWidget();
\npublic slots:
\n void SetNum(int num);
\n int GetNum();
\nprivate:
\n Ui::SmallWidget *ui;
\n};<\/p>\n

#endif \/\/ SMALLWIDGET_H<\/p>\n

\/\/SmallWidget.cpp
\n#include "SmallWidget.h"
\n#include "ui_SmallWidget.h"<\/p>\n

SmallWidget::SmallWidget(QWidget *parent)
\n : QWidget(parent)
\n , ui(new Ui::SmallWidget)
\n{
\n ui->setupUi(this);
\n connect(ui->spinBox,&QSpinBox::valueChanged,ui->horizontalSlider,&QSlider::setSliderPosition);
\n connect(ui->horizontalSlider,&QSlider::valueChanged,ui->spinBox,&QSpinBox::setValue);
\n}
\nvoid SmallWidget::SetNum(int num)
\n{
\n ui->spinBox->setValue(num);
\n}
\nint SmallWidget::GetNum()
\n{
\n return ui->spinBox->value();
\n}
\nSmallWidget::~SmallWidget()
\n{
\n delete ui;
\n}<\/p>\n

\u65b9\u5f0f2：\u7ee7\u627f\u4e0e\u7ed8\u5236\u6cd5<\/h3>\n

1.\u53f3\u952e\u9879\u76ee\u6dfb\u52a0\u65b0\u6587\u4ef6，\u8fd9\u91cc\u9009\u62e9C++ Class<\/p>\n

\"\"<\/p>\n

2.\u521b\u5efa\u4e00\u4e2aCircleButton\u7c7b，\u7ee7\u627f\u81ea\u57fa\u7c7bQWidget<\/p>\n

\"\"<\/p>\n

3.\u91cd\u5199\u7ed8\u56fe\u4e8b\u4ef6，\u6dfb\u52a0\u5e76\u5b8c\u6210\u76f8\u5173\u4fe1\u53f7\u69fd\u529f\u80fd<\/p>\n

#ifndef CIRCLEBUTTON_H
\n#define CIRCLEBUTTON_H<\/p>\n

#include <QWidget>
\n#include <QMouseEvent>
\n#include <QPainter>
\nclass CircleButton : public QWidget
\n{
\n Q_OBJECT
\npublic:
\n explicit CircleButton(QWidget *parent = nullptr);<\/p>\n

\/\/ \u81ea\u5b9a\u4e49\u5c5e\u6027：\u6309\u94ae\u6587\u5b57
\n void setText(const QString &text);
\n QString text() const;
\nsignals:
\n void clicked();
\nprotected:
\n \/\/ \u6838\u5fc3：\u91cd\u5199\u7ed8\u56fe\u4e8b\u4ef6（\u5fc5\u987b）
\n void paintEvent(QPaintEvent *event) override;
\n \/\/ \u53ef\u9009：\u91cd\u5199\u9f20\u6807\u4e8b\u4ef6，\u5b9e\u73b0\u4ea4\u4e92
\n void mousePressEvent(QMouseEvent *event) override;
\n void mouseReleaseEvent(QMouseEvent *event) override;<\/p>\n

private:
\n QString m_text; \/\/ \u6309\u94ae\u6587\u5b57
\n bool m_isPressed; \/\/ \u6807\u8bb0\u6309\u94ae\u662f\u5426\u88ab\u6309\u4e0b<\/p>\n

};<\/p>\n

#endif \/\/ CIRCLEBUTTON_H<\/p>\n

#include "CircleButton.h"<\/p>\n

CircleButton::CircleButton(QWidget *parent)
\n : QWidget{parent},
\n m_isPressed(false)
\n{
\n \/\/ \u8bbe\u7f6e\u63a7\u4ef6\u6700\u5c0f\u5c3a\u5bf8，\u907f\u514d\u663e\u793a\u5f02\u5e38
\n setMinimumSize(100, 100);
\n \/\/ \u5141\u8bb8\u63a5\u6536\u9f20\u6807\u4e8b\u4ef6
\n setMouseTracking(true);
\n}
\nvoid CircleButton::setText(const QString &text)
\n{
\n m_text = text;
\n update(); \/\/ \u89e6\u53d1\u91cd\u7ed8，\u66f4\u65b0\u663e\u793a
\n}<\/p>\n

QString CircleButton::text() const
\n{
\n return m_text;
\n}
\n\/\/ \u6838\u5fc3：\u91cd\u5199paintEvent\u5b9e\u73b0\u81ea\u5b9a\u4e49\u7ed8\u5236
\nvoid CircleButton::paintEvent(QPaintEvent *event)
\n{
\n Q_UNUSED(event); \/\/ \u5ffd\u7565\u672a\u4f7f\u7528\u7684\u53c2\u6570<\/p>\n

\/\/ 1. \u521b\u5efa\u753b\u7b14（\u5fc5\u987b\u5728paintEvent\u5185\u521b\u5efa，\u4e14\u5173\u8054\u5f53\u524d\u63a7\u4ef6）
\n QPainter painter(this);
\n \/\/ \u6297\u952f\u9f7f：\u8ba9\u7ed8\u5236\u7684\u56fe\u5f62\u8fb9\u7f18\u66f4\u5e73\u6ed1（\u53ef\u9009，\u4f46\u63a8\u8350）
\n painter.setRenderHint(QPainter::Antialiasing);<\/p>\n

\/\/ 2. \u7ed8\u5236\u6309\u94ae\u80cc\u666f（\u5706\u5f62）
\n QPen pen; \/\/ \u94a2\u7b14：\u63a7\u5236\u8f6e\u5ed3
\n if (m_isPressed) {
\n \/\/ \u6309\u4e0b\u72b6\u6001：\u7ea2\u8272\u8f6e\u5ed3
\n pen.setColor(Qt::red);
\n } else {
\n \/\/ \u6b63\u5e38\u72b6\u6001：\u9ed1\u8272\u8f6e\u5ed3
\n pen.setColor(Qt::black);
\n }
\n pen.setWidth(2); \/\/ \u8f6e\u5ed3\u5bbd\u5ea6
\n painter.setPen(pen);<\/p>\n

\/\/ \u7ed8\u5236\u5706\u5f62：\u5706\u5fc3\u5728\u63a7\u4ef6\u4e2d\u5fc3，\u534a\u5f84\u4e3a\u63a7\u4ef6\u6700\u5c0f\u8fb9\u957f\u7684\u4e00\u534a\u51cf2（\u7559\u8fb9\u8ddd）
\n int radius = qMin(width(), height()) \/ 2 – 2;
\n painter.drawEllipse(rect().center(), radius, radius);<\/p>\n

\/\/ 3. \u7ed8\u5236\u6309\u94ae\u6587\u5b57（\u5c45\u4e2d）
\n painter.setPen(Qt::white); \/\/ \u6587\u5b57\u989c\u8272
\n painter.setFont(QFont("Microsoft YaHei", 12)); \/\/ \u5b57\u4f53
\n \/\/ \u6587\u5b57\u5c45\u4e2d\u663e\u793a
\n painter.drawText(rect(), Qt::AlignCenter, m_text);
\n}<\/p>\n

\/\/ \u91cd\u5199\u9f20\u6807\u6309\u4e0b\u4e8b\u4ef6
\nvoid CircleButton::mousePressEvent(QMouseEvent *event)
\n{
\n if (event->button() == Qt::LeftButton) {
\n m_isPressed = true;
\n update(); \/\/ \u89e6\u53d1\u91cd\u7ed8，\u663e\u793a\u6309\u4e0b\u72b6\u6001
\n }
\n QWidget::mousePressEvent(event); \/\/ \u8c03\u7528\u7236\u7c7b\u4e8b\u4ef6，\u4fdd\u8bc1\u4e8b\u4ef6\u4f20\u9012
\n}<\/p>\n

\/\/ \u91cd\u5199\u9f20\u6807\u91ca\u653e\u4e8b\u4ef6
\nvoid CircleButton::mouseReleaseEvent(QMouseEvent *event)
\n{
\n if (event->button() == Qt::LeftButton) {
\n m_isPressed = false;
\n update(); \/\/ \u89e6\u53d1\u91cd\u7ed8，\u6062\u590d\u6b63\u5e38\u72b6\u6001
\n emit clicked(); \/\/ \u53d1\u9001\u81ea\u5b9a\u4e49\u70b9\u51fb\u4fe1\u53f7（\u5982\u9700）
\n }
\n QWidget::mouseReleaseEvent(event);
\n}<\/p>\n

4.\u5728\u9700\u8981\u4f7f\u7528CircleButton\u7684\u7c7b\u4e2d\u5f15\u5165\u5934\u6587\u4ef6，\u7136\u540e\u901a\u8fc7new CircleButton(this)\u6dfb\u52a0\u5230\u5e03\u5c40\u5373\u53ef<\/p>\n

#include "widget.h"
\n#include ".\/ui_widget.h"
\n#include "CircleButton.h"
\n#include <QVBoxLayout>
\nWidget::Widget(QWidget *parent)
\n : QWidget(parent)
\n , ui(new Ui::Widget)
\n{
\n ui->setupUi(this);
\n QVBoxLayout *vbox=new QVBoxLayout(this);
\n CircleButton *myButton=new CircleButton(this);
\n vbox->addWidget(myButton);
\n}<\/p>\n

Widget::~Widget()
\n{
\n delete ui;
\n}<\/p>\n

5.\u7f16\u8bd1\u8fd0\u884c，\u5b9e\u73b0\u6548\u679c\u5982\u4e0b：<\/p>\n

\"\"<\/p>\n

6.\u8fd8\u53ef\u4ee5\u7ed3\u5408\u63d0\u5347\u6cd5\u5728 Designer \u4e2d\u4f7f\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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