91 lines
3.0 KiB
Python
91 lines
3.0 KiB
Python
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from PySide6.QtWidgets import QApplication, QPushButton, QMainWindow
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from PySide6.QtGui import QPainter, QRadialGradient, QColor, QFont
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from PySide6.QtCore import Qt, QRectF, QPropertyAnimation, QEasingCurve
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import sys
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class GradientButton(QPushButton):
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def __init__(self, text, parent=None):
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super().__init__(text, parent)
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self.setFlat(True)
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self.setFont(QFont("Arial", 14, QFont.Bold))
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self.setMouseTracking(True)
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self.hover = False
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self.animation = QPropertyAnimation(self, b"geometry")
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self.animation.setDuration(100)
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self.animation.setEasingCurve(QEasingCurve.OutQuad)
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def paintEvent(self, event):
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painter = QPainter(self)
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painter.setRenderHint(QPainter.Antialiasing)
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rect = self.rect()
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gradient = QRadialGradient(rect.width()/2,rect.top(), rect.width())
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gradient.setColorAt(0, QColor(0, 0, 0))
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gradient.setColorAt(1, QColor(255, 255, 255))
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if self.hover:
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gradient.setColorAt(0, QColor(30, 30, 30))
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gradient.setColorAt(1, QColor(220, 220, 220))
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brush = gradient
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painter.setBrush(brush)
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painter.setPen(Qt.NoPen)
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radius = 10
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painter.drawRoundedRect(QRectF(rect), radius, radius)
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painter.setPen(QColor(0, 0, 0) if not self.hover else QColor(50, 50, 50))
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painter.drawText(rect, Qt.AlignCenter, self.text())
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def enterEvent(self, event):
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self.hover = True
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self.update()
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super().enterEvent(event)
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def leaveEvent(self, event):
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self.hover = False
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self.update()
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super().leaveEvent(event)
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def mousePressEvent(self, event):
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if event.button() == Qt.LeftButton:
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# 开始缩放动画（缩小）
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geom = self.geometry()
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new_geom = geom.adjusted(5, 5, -5, -5)
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self.animation.stop()
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self.animation.setStartValue(geom)
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self.animation.setEndValue(new_geom)
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self.animation.start()
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super().mousePressEvent(event)
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def mouseReleaseEvent(self, event):
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if event.button() == Qt.LeftButton:
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# 恢复原始大小
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geom = self.geometry()
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new_geom = geom.adjusted(-5, -5, 5, 5)
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self.animation.stop()
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self.animation.setStartValue(geom)
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self.animation.setEndValue(new_geom)
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self.animation.start()
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super().mouseReleaseEvent(event)
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class MainWindow(QMainWindow):
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def __init__(self):
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super().__init__()
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self.setWindowTitle("带动画的渐变按钮示例")
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self.setFixedSize(400, 300)
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self.button = GradientButton("点击我", self)
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self.button.setGeometry(150, 130, 100, 40)
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self.button.clicked.connect(self.on_button_click)
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def on_button_click(self):
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print("按钮被点击了！")
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if __name__ == "__main__":
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app = QApplication(sys.argv)
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window = MainWindow()
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window.show()
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sys.exit(app.exec())
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