196 lines
7.0 KiB
Python
196 lines
7.0 KiB
Python
from PySide6.QtWidgets import (QWidget, QListWidget, QStyledItemDelegate,
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QApplication, QVBoxLayout, QMenu, QListWidgetItem,
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QStyle)
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from PySide6.QtCore import Qt, QSize, QRect, QPoint
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from PySide6.QtGui import (QPainter, QPainterPath, QColor, QLinearGradient,
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QPen, QFont, QIcon)
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class CardItemDelegate(QStyledItemDelegate):
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def __init__(self, parent=None):
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super().__init__(parent)
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self.tree_indent = 20 # 树形缩进距离
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self.expanded_items = set() # 跟踪展开状态
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def paint(self, painter: QPainter, option, index):
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painter.setRenderHint(QPainter.RenderHint.Antialiasing)
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painter.save()
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# 获取数据
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data = index.data(Qt.ItemDataRole.UserRole)
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is_expanded = id(data) in self.expanded_items
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# 绘制卡片背景
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rect = option.rect
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rect.adjust(8, 4, -8, -4)
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# 创建圆角路径
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path = QPainterPath()
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path.addRoundedRect(rect, 8, 8)
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# 绘制阴影
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shadow_color = QColor(0, 0, 0, 30)
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for i in range(5):
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shadow_rect = rect.adjusted(0, i, 0, i)
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shadow_path = QPainterPath()
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shadow_path.addRoundedRect(shadow_rect, 8, 8)
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painter.fillPath(shadow_path, shadow_color)
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# 绘制卡片背景
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gradient = QLinearGradient(rect.topLeft(), rect.bottomLeft())
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if data.activated:
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gradient.setColorAt(0, QColor(40, 70, 45))
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gradient.setColorAt(1, QColor(45, 80, 50))
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painter.fillPath(path, gradient)
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painter.setPen(QPen(QColor(60, 180, 90), 2))
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elif option.state & QStyle.State_Selected:
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gradient.setColorAt(0, QColor(45, 45, 55))
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gradient.setColorAt(1, QColor(55, 55, 65))
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painter.fillPath(path, gradient)
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painter.setPen(QPen(QColor(70, 130, 180), 2))
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else:
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painter.fillPath(path, QColor(35, 35, 40))
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painter.setPen(QPen(QColor(60, 60, 65)))
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painter.drawPath(path)
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# 计算文本区域
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padding = 15
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name_rect = rect.adjusted(padding, padding, -padding, 0)
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name_rect.setHeight(25)
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# 绘制展开/折叠图标
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if data.params:
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icon_size = 16
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icon_rect = QRect(
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name_rect.left(),
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name_rect.top() + (name_rect.height() - icon_size) // 2,
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icon_size,
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icon_size
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)
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painter.setPen(QPen(QColor(160, 160, 160), 1))
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painter.setBrush(Qt.BrushStyle.NoBrush)
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# 绘制小方框
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painter.drawRect(icon_rect)
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# 绘制横线
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h_line_y = icon_rect.center().y()
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painter.drawLine(
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icon_rect.left() + 3,
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h_line_y,
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icon_rect.right() - 3,
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h_line_y
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)
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# 绘制竖线（如果未展开）
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if not is_expanded:
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v_line_x = icon_rect.center().x()
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painter.drawLine(
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v_line_x,
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icon_rect.top() + 3,
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v_line_x,
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icon_rect.bottom() - 3
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)
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name_rect.setLeft(icon_rect.right() + 5)
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# 绘制基本信息
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painter.setFont(QFont("Microsoft YaHei", 10, QFont.Weight.Bold))
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painter.setPen(Qt.GlobalColor.white)
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painter.drawText(name_rect, Qt.AlignmentFlag.AlignLeft | Qt.AlignmentFlag.AlignVCenter, data.name)
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date_rect = QRect(name_rect)
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date_rect.translate(0, name_rect.height())
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painter.setFont(QFont("Microsoft YaHei", 9))
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painter.setPen(QColor(180, 180, 180))
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painter.drawText(date_rect, Qt.AlignmentFlag.AlignLeft | Qt.AlignmentFlag.AlignVCenter, data.date)
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desc_rect = QRect(date_rect)
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desc_rect.translate(0, date_rect.height())
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desc_rect.setHeight(40)
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painter.setPen(QColor(160, 160, 160))
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painter.drawText(desc_rect, Qt.AlignmentFlag.AlignLeft | Qt.AlignmentFlag.AlignTop | Qt.TextFlag.TextWordWrap,
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data.description)
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# 如果展开，绘制参数
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if is_expanded and data.params:
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param_start_y = desc_rect.bottom() + 10
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param_font = QFont("Microsoft YaHei", 9)
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painter.setFont(param_font)
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for i, param in enumerate(data.params):
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param_rect = QRect(
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name_rect.left() + self.tree_indent,
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param_start_y + i * 25,
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rect.width() - 2 * padding - self.tree_indent,
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20
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)
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# 绘制连接线
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line_start_x = name_rect.left() + self.tree_indent // 2
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line_end_x = param_rect.left()
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line_y = param_rect.center().y()
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painter.setPen(QPen(QColor(80, 80, 80), 1))
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# 绘制垂直线
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if i == 0:
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painter.drawLine(
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line_start_x,
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desc_rect.bottom() + 5,
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line_start_x,
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param_start_y + (len(data.params) - 1) * 25 + 10
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)
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# 绘制水平线
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painter.drawLine(
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line_start_x,
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line_y,
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line_end_x,
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line_y
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)
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# 绘制参数文本
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painter.setPen(QColor(140, 140, 140))
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param_text = f"{param.name}: {param.value}"
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painter.drawText(param_rect, Qt.AlignmentFlag.AlignLeft | Qt.AlignmentFlag.AlignVCenter, param_text)
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painter.restore()
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def sizeHint(self, option, index):
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data = index.data(Qt.ItemDataRole.UserRole)
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base_height = 130
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if id(data) in self.expanded_items and data.params:
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param_height = len(data.params) * 25
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return QSize(380, base_height + param_height + 10)
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return QSize(380, base_height)
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def editorEvent(self, event, model, option, index):
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if event.type() == event.Type.MouseButtonPress:
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data = index.data(Qt.ItemDataRole.UserRole)
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if not data.params:
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return False
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rect = option.rect
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padding = 15
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icon_size = 16
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icon_rect = QRect(
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rect.left() + padding,
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rect.top() + padding + (25 - icon_size) // 2,
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icon_size,
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icon_size
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)
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if icon_rect.contains(event.pos()):
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if id(data) in self.expanded_items:
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self.expanded_items.remove(id(data))
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else:
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self.expanded_items.add(id(data))
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model.dataChanged.emit(index, index)
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return True
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return False |