feat: 最后的波纹

SoftwareDesign/Lab5/lab5_1_painter/mainwindow.cpp

@@ -33,22 +33,49 @@ void MainWindow::on_styCor_triggered() //边框颜色
   QPainter painter(this);
   painter.drawPixmap(0, 0, pix);
 }
-
 void MainWindow::paintEvent(QPaintEvent *event) {
-  if (enable)
-    switch (drawStatus) {
-    case line:
-      QPainter pp(&pix); // 根据鼠标指针前后两个位置就行绘制直线
-      pp.drawLine(
-          lastPoint,
-          endPoint); // 让前一个坐标值等于后一个坐标值，这样就能实现画出连续的线
-      enable = false;
-    }
   QPainter painter(this);
-  painter.drawPixmap(0, 0, pix);
+  painter.drawLine(QPoint(100, 100), QPoint(200, 200));
 
-  drawStatus = idle;
+  QPen pen(Qt::green, 5, Qt::DotLine, Qt::RoundCap, Qt::RoundJoin);
+  painter.setPen(pen);
+  QRectF rect(170.0, 140.0, 180.0, 60.0);
+  int startAngle = 30 * 16;
+  int spanAngle = 120 * 16;
+  painter.drawArc(rect, startAngle, spanAngle);
+
+  pen.setWidth(1);
+  pen.setStyle(Qt::SolidLine);
+  painter.setPen(pen);
+  painter.drawRect(260, 220, 250, 240);
+  QBrush brush(QColor(0, 0, 255), Qt::Dense4Pattern);
+  painter.setBrush(brush);
+  painter.drawEllipse(220, 220, 250, 150);
+
+  static const QPointF points[4] = {
+      QPointF(270.0, 180.0), QPointF(290.0, 110.0), QPointF(350.0, 130.0),
+      QPointF(390.0, 170.0)};
+  painter.drawPolygon(points, 4);
+
+  painter.fillRect(QRect(10, 100, 150, 20), QBrush(Qt::darkYellow));
+  painter.eraseRect(QRect(50, 0, 50, 120));
 }
+// void MainWindow::paintEvent(QPaintEvent *event) {
+//   if (enable)
+//     switch (drawStatus) {
+//     case line:
+//       QPainter pp(&pix); // 根据鼠标指针前后两个位置就行绘制直线
+//       pp.drawLine(
+//           lastPoint,
+//           endPoint); //
+//           让前一个坐标值等于后一个坐标值，这样就能实现画出连续的线
+//       enable = false;
+//     }
+//   QPainter painter(this);
+//   painter.drawPixmap(0, 0, pix);
+
+//  drawStatus = idle;
+//}
 void MainWindow::drawLineTriger() { drawStatus = line; }
 
 void MainWindow::on_drawLine_triggered() {

SoftwareDesign/Lab5/lab5_1_painter/mainwindow.ui

@@ -11,7 +11,7 @@
    </rect>
   </property>
   <property name="windowTitle">
-   <string>MainWindow</string>
+   <string>实验5-***REMOVED***-***REMOVED***</string>
   </property>
   <widget class="QWidget" name="centralwidget"/>
   <widget class="QStatusBar" name="statusbar"/>