添加一个stack控件

astackwidget/astackwidget.cpp

@@ -0,0 +1,172 @@
+#include "astackwidget.h"
+
+#include <QDebug>
+#include <QPropertyAnimation>
+
+AStackWidget::AStackWidget(QWidget *parent)
+	: QWidget(parent)
+{
+	m_offset = 0;
+	m_curIndex = 0;
+    m_lastIndex = 0;
+	m_duration = 500;
+	m_moveAnimation = new QPropertyAnimation(this, "");
+	m_moveAnimation->setDuration(m_duration);
+	connect(m_moveAnimation, &QPropertyAnimation::valueChanged, this, &AStackWidget::onValueChanged);
+	connect(m_moveAnimation, &QPropertyAnimation::finished, this, &AStackWidget::onMoveFinished);
+}
+
+AStackWidget::~AStackWidget()
+{
+
+}
+
+int AStackWidget::count() const
+{
+	return m_widgetLst.size();
+}
+
+int AStackWidget::currentIndex() const
+{
+	return m_curIndex;
+}
+
+void AStackWidget::setDuration(int duration)
+{
+	m_duration = duration;
+}
+
+int AStackWidget::addWidget(QWidget * widget)
+{
+	int index = indexOf(widget);
+	if (index >= 0){
+		return index;
+	}
+	widget->setParent(this);
+	m_widgetLst.append(widget);
+	return count() - 1;
+}
+
+int AStackWidget::indexOf(QWidget * widget) const
+{
+	return m_widgetLst.indexOf(widget);
+}
+
+int AStackWidget::insertWidget(int index, QWidget * widget)
+{
+	int curindex = indexOf(widget);
+	if (curindex >= 0) {
+		return curindex;
+	}
+	widget->setParent(this);
+	m_widgetLst.insert(index, widget);
+	return index;
+}
+
+QWidget * AStackWidget::currentWidget() const
+{
+	if (m_curIndex >= 0 && m_curIndex < count()){
+		return m_widgetLst.at(m_curIndex);
+	}
+	return nullptr;
+}
+
+QWidget * AStackWidget::widget(int index) const
+{
+	if (index >= 0 && index < count()) {
+		return m_widgetLst.at(index);
+	}
+	return nullptr;
+}
+
+void AStackWidget::removeWidget(QWidget * widget)
+{
+	int index = indexOf(widget);
+	if (index >= 0) {
+		m_widgetLst.removeAll(widget);
+		emit widgetRemoved(index);
+	}
+}
+
+void AStackWidget::setCurrentWidget(QWidget * widget)
+{
+	int index = indexOf(widget);
+	if (index >= 0 && m_curIndex != index) {
+		setCurrentIndex(index);
+	}
+}
+
+void AStackWidget::setCurrentIndex(int index)
+{
+	if (index >= 0 && m_curIndex != index) {
+		m_lastIndex = m_curIndex;
+		m_curIndex = index;	
+		moveAnimationStart();
+		emit currentChanged(index);
+	}
+}
+
+void AStackWidget::resizeEvent(QResizeEvent *event)
+{
+	QWidget::resizeEvent(event);
+
+	int size = count();
+	for (int i = 0; i < size; i++) {
+		m_widgetLst.at(i)->resize(this->width(), this->height());
+	}
+
+	if (m_moveAnimation->state() == QAbstractAnimation::Running) {
+		moveAnimationStart();
+	}
+	else {
+		setWidgetsVisible();
+        onValueChanged(0);
+	}
+}
+
+void AStackWidget::onValueChanged(const QVariant &value)
+{
+	m_offset = value.toInt();
+	m_widgetLst.at(m_curIndex)->move(m_offset, 0);
+	if (m_curIndex > m_lastIndex) {
+		m_widgetLst.at(m_lastIndex)->move(m_offset - this->width(), 0);
+    } else if (m_curIndex < m_lastIndex){
+		m_widgetLst.at(m_lastIndex)->move(this->width() + m_offset, 0);
+	}
+}
+
+void AStackWidget::moveAnimationStart()
+{
+	m_moveAnimation->stop();
+	setWidgetsVisible();
+	int startOffset = m_offset;
+	if (m_curIndex > m_lastIndex) {
+		if (startOffset == 0) startOffset = this->width();
+		else startOffset = this->width() - qAbs(startOffset);
+	}
+	else {
+		if (startOffset == 0) startOffset = -this->width();
+		else startOffset = qAbs(startOffset) - this->width();
+	}
+	m_moveAnimation->setDuration(qAbs(startOffset) * m_duration / this->width());
+	m_moveAnimation->setStartValue(startOffset);
+	m_moveAnimation->setEndValue(0);
+	m_moveAnimation->start();
+}
+
+void AStackWidget::setWidgetsVisible()
+{
+	int size = count();
+	for (int i = 0; i < size; i++) {
+		if (m_lastIndex == i || m_curIndex == i)
+			m_widgetLst.at(i)->setVisible(true);
+		else {
+			m_widgetLst.at(i)->setVisible(false);
+		}
+	}
+}
+
+void AStackWidget::onMoveFinished()
+{
+
+}

astackwidget/astackwidget.h

@@ -0,0 +1,52 @@
+#include <QWidget>
+
+class QPropertyAnimation;
+class AStackWidget : public QWidget
+{
+	Q_OBJECT
+
+public:
+	AStackWidget(QWidget *parent);
+	~AStackWidget();
+
+signals:
+	void currentChanged(int index);
+	void widgetRemoved(int index);
+
+public:
+	int count() const;
+	int currentIndex() const;
+	int addWidget(QWidget *widget);
+	int indexOf(QWidget *widget) const;
+	int insertWidget(int index, QWidget *widget);
+	
+	QWidget *currentWidget() const;	
+	QWidget *widget(int index) const;
+
+	void removeWidget(QWidget *widget);
+	void setDuration(int duration);
+
+public slots:
+	void setCurrentIndex(int index);
+	void setCurrentWidget(QWidget *widget);
+
+private slots:
+	void onValueChanged(const QVariant &);
+	void onMoveFinished();
+
+private:
+	void moveAnimationStart();
+	void setWidgetsVisible();
+
+protected:
+	void resizeEvent(QResizeEvent *event);
+
+private:
+	int m_offset;
+	int m_curIndex;
+	int m_lastIndex;
+
+	int m_duration;
+	QPropertyAnimation *m_moveAnimation;
+	QList<QWidget *> m_widgetLst;
+};

astackwidget/astackwidget.pro

@@ -0,0 +1,23 @@
+
+#-------------------------------------------------
+#
+# Project created by QtCreator 2021-02-19T09:21:04
+#
+#-------------------------------------------------
+
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET      = astackwidget
+TEMPLATE    = app
+DESTDIR     = $$PWD/../bin
+CONFIG      += warn_off
+
+SOURCES     += main.cpp
+SOURCES     += astackwidget.cpp
+HEADERS     += astackwidget.h
+
+SOURCES     += frmastackwidget.cpp
+HEADERS     += frmastackwidget.h
+FORMS       += frmastackwidget.ui

astackwidget/astackwidget.pro.user

@@ -0,0 +1,318 @@
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astackwidget/frmastackwidget.cpp

@@ -0,0 +1,38 @@
+#pragma execution_character_set("utf-8")
+
+#include "FrmAStackWidget.h"
+
+#include <QButtonGroup> 
+#include <QLabel>
+
+FrmAStackWidget::FrmAStackWidget(QWidget *parent)
+    : QWidget(parent)
+{
+	ui.setupUi(this);
+
+    QList<QString> colorlst;
+    colorlst << "#1abc9c";
+    colorlst << "#2ecc71";
+    colorlst << "#3498db";
+    colorlst << "#9b59b6";
+    colorlst << "#e74c3c";
+
+    QList<QPushButton*> btnlst;
+    btnlst << ui.pushButton_1;
+    btnlst << ui.pushButton_2;
+    btnlst << ui.pushButton_3;
+    btnlst << ui.pushButton_4;
+    btnlst << ui.pushButton_5;
+
+    QButtonGroup *btnGroup = new QButtonGroup(this);
+    connect(btnGroup, static_cast<void(QButtonGroup::*)(int)>(&QButtonGroup::buttonClicked), ui.aStackwidget, &AStackWidget::setCurrentIndex);
+
+    for (int i = 0; i < 5; i++) {
+        QLabel *label = new QLabel(ui.aStackwidget);
+        label->setStyleSheet(QString("background-color:%1;color:#ffffff;").arg(colorlst.at(i)));
+        label->setText(QString::number(i + 1));
+        label->setAlignment(Qt::AlignCenter);
+        int index = ui.aStackwidget->addWidget(label);
+        btnGroup->addButton(btnlst.at(i), index);
+    }
+}

astackwidget/frmastackwidget.h

@@ -0,0 +1,13 @@
+#include <QWidget>
+#include "ui_FrmAStackWidget.h"
+
+class FrmAStackWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    FrmAStackWidget(QWidget *parent = Q_NULLPTR);
+
+private:
+	Ui::FrmAStackWidgetClass ui;
+};

astackwidget/frmastackwidget.ui

@@ -0,0 +1,94 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>FrmAStackWidgetClass</class>
+ <widget class="QWidget" name="FrmAStackWidgetClass">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>600</width>
+    <height>400</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>FrmAStackWidget</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <property name="spacing">
+    <number>12</number>
+   </property>
+   <property name="leftMargin">
+    <number>12</number>
+   </property>
+   <property name="topMargin">
+    <number>12</number>
+   </property>
+   <property name="rightMargin">
+    <number>12</number>
+   </property>
+   <property name="bottomMargin">
+    <number>12</number>
+   </property>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QPushButton" name="pushButton_1">
+       <property name="text">
+        <string>PushButton1</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButton_2">
+       <property name="text">
+        <string>PushButton2</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButton_3">
+       <property name="text">
+        <string>PushButton3</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButton_4">
+       <property name="text">
+        <string>PushButton4</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButton_5">
+       <property name="text">
+        <string>PushButton5</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="AStackWidget" name="aStackwidget" native="true">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <layoutdefault spacing="6" margin="11"/>
+ <customwidgets>
+  <customwidget>
+   <class>AStackWidget</class>
+   <extends>QWidget</extends>
+   <header>astackwidget.h</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections/>
+</ui>

astackwidget/main.cpp

@@ -0,0 +1,30 @@
+#pragma execution_character_set("utf-8")
+#include "frmastackwidget.h"
+
+#include <QApplication>
+#include <QTextCodec>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    a.setFont(QFont("Microsoft Yahei", 9));
+
+#if (QT_VERSION <= QT_VERSION_CHECK(5,0,0))
+#if _MSC_VER
+    QTextCodec *codec = QTextCodec::codecForName("gbk");
+#else
+    QTextCodec *codec = QTextCodec::codecForName("utf-8");
+#endif
+    QTextCodec::setCodecForLocale(codec);
+    QTextCodec::setCodecForCStrings(codec);
+    QTextCodec::setCodecForTr(codec);
+#else
+    QTextCodec *codec = QTextCodec::codecForName("utf-8");
+    QTextCodec::setCodecForLocale(codec);
+#endif
+
+    FrmAStackWidget w;
+	w.setWindowTitle(QStringLiteral("动态StackWidget"));
+    w.show();
+    return a.exec();
+}