95 lines
3.4 KiB
Python
95 lines
3.4 KiB
Python
from PySide6 import QtWidgets, QtCore, QtGui
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class FloatingImagePanel(QtWidgets.QWidget):
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def __init__(self, parent, title="原始比例预览", image_path=None):
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super().__init__(parent)
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self.is_expanded = True
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# 1. 样式配置 (保持深色风格，方便看清信号)
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self.setAttribute(QtCore.Qt.WA_StyledBackground, True)
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self.setStyleSheet("""
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FloatingImagePanel {
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background-color: rgba(30, 30, 30, 220);
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border: 2px solid #444;
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border-radius: 4px;
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}
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QLabel#title_label { color: #ffffff; font-weight: bold; font-family: 'Consolas'; }
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QPushButton#toggle_btn { background: #444; color: white; border: none; }
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""")
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# 2. 布局初始化
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self.main_layout = QtWidgets.QVBoxLayout(self)
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self.main_layout.setContentsMargins(4, 4, 4, 4)
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self.main_layout.setSpacing(2)
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# --- 标题栏 ---
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self.header = QtWidgets.QWidget()
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header_layout = QtWidgets.QHBoxLayout(self.header)
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header_layout.setContentsMargins(2, 2, 2, 2)
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self.title_label = QtWidgets.QLabel(title)
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self.title_label.setObjectName("title_label")
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self.toggle_btn = QtWidgets.QPushButton("▲")
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self.toggle_btn.setFixedSize(22, 22)
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header_layout.addWidget(self.title_label)
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header_layout.addStretch()
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header_layout.addWidget(self.toggle_btn)
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self.main_layout.addWidget(self.header)
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# --- 图片展示区 ---
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self.image_label = QtWidgets.QLabel()
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# 关键点 1：关闭自动填充，确保我们手动控制尺寸
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self.image_label.setScaledContents(False)
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# 关键点 2：设置对齐方式为中心
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self.image_label.setAlignment(QtCore.Qt.AlignCenter)
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self.main_layout.addWidget(self.image_label)
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# 3. 信号绑定
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self.toggle_btn.clicked.connect(self.toggle_content)
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# 4. 加载图片
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if image_path:
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self.update_image(image_path)
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def update_image(self, path):
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"""完全根据图片的物理尺寸调整窗口"""
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pixmap = QtGui.QPixmap(path)
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if not pixmap.isNull():
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# 拿到图片的原始宽高
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w = pixmap.width()
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h = pixmap.height()
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# 强制 Label 等于图片大小
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self.image_label.setFixedSize(w, h)
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self.image_label.setPixmap(pixmap)
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# 让整个窗口重新计算布局，贴合 Label
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self.adjustSize()
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# 保持展开状态
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self.set_expanded(True)
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def set_expanded(self, expanded: bool):
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self.is_expanded = expanded
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self.image_label.setVisible(expanded)
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self.toggle_btn.setText("▲" if expanded else "▼")
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# 关键点 3：重置窗口大小
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# 展开时它会变大包住图片，收起时它会缩成标题栏大小
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self.adjustSize()
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# 通知父窗口刷新位置，防止因为变大而超出右边界
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if hasattr(self.parent(), 'update_overlay_position'):
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self.parent().update_overlay_position()
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def toggle_content(self):
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self.set_expanded(not self.is_expanded)
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# --- 封装的调用函数 ---
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def add_floating_image_panel(parent_widget, title="图片原尺寸", img_path=None):
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panel = FloatingImagePanel(parent_widget, title, img_path)
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panel.raise_()
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return panel |