新增图片开关控件

imageswitch/imageswitch.cpp

@@ -0,0 +1,91 @@
+#pragma execution_character_set("utf-8")
+
+#include "imageswitch.h"
+#include "qpainter.h"
+#include "qdebug.h"
+
+ImageSwitch::ImageSwitch(QWidget *parent) : QWidget(parent)
+{
+    isChecked = false;
+    buttonStyle = ButtonStyle_2;
+
+    imgOffFile = ":/image/btncheckoff2.png";
+    imgOnFile = ":/image/btncheckon2.png";
+    imgFile = imgOffFile;
+}
+
+void ImageSwitch::mousePressEvent(QMouseEvent *)
+{
+    imgFile = isChecked ? imgOffFile : imgOnFile;
+    isChecked = !isChecked;
+    this->update();
+}
+
+void ImageSwitch::paintEvent(QPaintEvent *)
+{
+    QPainter painter(this);
+    painter.setRenderHints(QPainter::SmoothPixmapTransform);
+    QImage img(imgFile);
+    img = img.scaled(this->size(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
+
+    //按照比例自动居中绘制
+    int pixX = rect().center().x() - img.width() / 2;
+    int pixY = rect().center().y() - img.height() / 2;
+    QPoint point(pixX, pixY);
+    painter.drawImage(point, img);
+}
+
+bool ImageSwitch::getChecked() const
+{
+    return isChecked;
+}
+
+ImageSwitch::ButtonStyle ImageSwitch::getButtonStyle() const
+{
+    return this->buttonStyle;
+}
+
+QSize ImageSwitch::sizeHint() const
+{
+    return QSize(87, 28);
+}
+
+QSize ImageSwitch::minimumSizeHint() const
+{
+    return QSize(87, 28);
+}
+
+void ImageSwitch::setChecked(bool isChecked)
+{
+    if (this->isChecked != isChecked) {
+        this->isChecked = isChecked;
+        imgFile = isChecked ? imgOnFile : imgOffFile;
+        this->update();
+    }
+}
+
+void ImageSwitch::setButtonStyle(const ImageSwitch::ButtonStyle &buttonStyle)
+{
+    if (this->buttonStyle != buttonStyle) {
+        this->buttonStyle = buttonStyle;
+
+        if (buttonStyle == ButtonStyle_1) {
+            imgOffFile = ":/image/btncheckoff1.png";
+            imgOnFile = ":/image/btncheckon1.png";
+            this->resize(87, 28);
+        } else if (buttonStyle == ButtonStyle_2) {
+            imgOffFile = ":/image/btncheckoff2.png";
+            imgOnFile = ":/image/btncheckon2.png";
+            this->resize(87, 28);
+        } else if (buttonStyle == ButtonStyle_3) {
+            imgOffFile = ":/image/btncheckoff3.png";
+            imgOnFile = ":/image/btncheckon3.png";
+            this->resize(96, 38);
+        }
+
+        imgFile = isChecked ? imgOnFile : imgOffFile;
+        setChecked(isChecked);
+        this->update();
+        updateGeometry();
+    }
+}