Files
sshclient/ui/main_window.py
T
Hermes 9c08d7593d feat: window edge drag-to-resize (normal + from maximized)
User asked: '窗口应该可以前后左右拉'

Added custom edge drag handling in MainWindow (QMainWindow's default
resize support exists but ignored + we want full control for
maximized state too):

New methods in ui/main_window.py:
- _hit_test_edge(pos) -> 'L'/'R'/'T'/'B'/'TL'/'TR'/'BL'/'BR'/''
  6px margin around window. Returns which edge (or corner) the
  cursor is on. Returns '' when maximized/fullscreen.
- _edge_to_cursor(edge): sets Qt.SizeHor/Ver/FDiag/BDiag cursor
- _do_resize(global_pos): computes new geometry based on drag
  delta. Respects self.minimumWidth/Height (QMainWindow's auto
  min size from menu/toolbar/statusbar) and screen bounds.
- _restore_from_max(global_pos): when maximized, click+drag on
  TOP edge → showNormal() + set geometry to mouse-relative size
  + continue drag from 'TL' corner (like Windows native behavior)
- mousePressEvent/Move/Release: hook into resize state
- leaveEvent: clear cursor when leaving window
- changeEvent: clear resize state on window state change

State fields added in __init__:
- self._resize_edge, self._resize_start_geo, self._resize_start_pos
- self._resize_margin = 6
- self._dragging_from_max = False

Fix: 'QTabWidget.RightSide' was wrong API; used 'QTabBar.RightSide'
in the multi-tab commit (unrelated, but I noticed while testing).

New test_resize.py (5 tests, all pass):
- 8-region hit-test (4 edges + 4 corners)
- Right-edge drag → width grows
- Left-edge drag → x moves right (width limited by minW)
- Top-left corner drag
- Maximized + click top edge → restored to normal

Existing tests (core 6/6, UI 3/3) still pass.

Build: 57MB exe.
2026-07-29 07:23:16 +08:00

697 lines
28 KiB
Python
Raw Blame History

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"""
主窗口
- 左侧:主机列表 + 操作
- 右侧:标签页(终端、文件浏览、监控、AI Agent)
"""
import sys
import time
from typing import Optional
from PyQt5.QtCore import Qt, QSize
from PyQt5.QtGui import QFont, QIcon
from PyQt5.QtWidgets import (
QMainWindow, QWidget, QVBoxLayout, QHBoxLayout, QListWidget, QListWidgetItem,
QPushButton, QLineEdit, QLabel, QSplitter, QTabWidget,
QGroupBox, QFormLayout, QMessageBox, QStatusBar, QAction,
QFileDialog, QInputDialog, QToolBar, QApplication, QStyle,
QTreeWidget, QTreeWidgetItem, QMenu,
)
from core.manager import ConnectionManager
from core.ai_agent import AIAgent
from .workers import ConnectWorker
from .widgets import FileBrowser, MonitorPanel, AIChatPanel
from .config_dialog import AIConfigDialog
from .terminal_panel import TerminalPanel
from .terminal_tab_widget import TerminalTabWidget
from .theme import get_qss, get_theme, set_theme
APP_NAME = "SSHClient"
APP_VERSION = "1.0.0"
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.setWindowTitle(f"{APP_NAME} v{APP_VERSION} - AI 增强 SSH 客户端")
self.resize(1280, 800)
self.manager = ConnectionManager()
self.agent = AIAgent()
self.current_host_id: Optional[str] = None
self.connect_worker: Optional[ConnectWorker] = None
self._build_ui()
self._build_menu()
self._build_statusbar()
self._apply_theme()
# 边缘拖动调整大小(含最大化时)—— 状态字段
self._resize_edge: str = "" # '' / 'L'/'R'/'T'/'B'/'TL'/'TR'/'BL'/'BR'
self._resize_start_geo = None # 拖动开始时窗口 geometry
self._resize_start_pos = None # 拖动开始时鼠标全局坐标
# 边缘检测阈值(像素)
self._resize_margin = 6
# 最大化时拖动:是否正在拖(避免和正常拖动冲突)
self._dragging_from_max = False
# 鼠标光标缓存
self.setMouseTracking(True)
self._load_hosts_to_list()
# ============================================================
# UI 构建
# ============================================================
def _build_ui(self):
central = QWidget()
self.setCentralWidget(central)
root = QHBoxLayout(central)
root.setContentsMargins(6, 6, 6, 6)
root.setSpacing(6)
splitter = QSplitter(Qt.Horizontal)
root.addWidget(splitter)
# ====== 左侧:主机面板 ======
left = QWidget()
lv = QVBoxLayout(left)
lv.setContentsMargins(4, 4, 4, 4)
lv.setSpacing(6)
host_title = QLabel("🖥 主机")
host_title.setStyleSheet("font-size: 12pt; font-weight: bold; padding: 4px;")
lv.addWidget(host_title)
self.host_tree = QTreeWidget()
self.host_tree.setHeaderHidden(True)
self.host_tree.setIndentation(16)
self.host_tree.setAnimated(True)
self.host_tree.setExpandsOnDoubleClick(False)
self.host_tree.itemSelectionChanged.connect(self._on_host_selected)
self.host_tree.itemDoubleClicked.connect(self._on_host_double_clicked)
# 右键菜单
self.host_tree.setContextMenuPolicy(Qt.CustomContextMenu)
self.host_tree.customContextMenuRequested.connect(self._on_host_context_menu)
lv.addWidget(self.host_tree, 1)
# 主机操作按钮
btn_grid = QVBoxLayout()
btn_grid.setSpacing(4)
self.btn_add = QPushButton(" 新增主机")
self.btn_add.clicked.connect(self._add_host)
self.btn_edit = QPushButton("✏ 编辑")
self.btn_edit.clicked.connect(self._edit_host)
self.btn_delete = QPushButton("🗑 删除")
self.btn_delete.clicked.connect(self._delete_host)
self.btn_connect = QPushButton("🔌 连接")
self.btn_connect.clicked.connect(self._do_connect)
self.btn_disconnect = QPushButton("⛔ 断开")
self.btn_disconnect.clicked.connect(self._do_disconnect)
for b in (self.btn_add, self.btn_edit, self.btn_delete,
self.btn_connect, self.btn_disconnect):
btn_grid.addWidget(b)
lv.addLayout(btn_grid)
# 连接状态
self.conn_status_label = QLabel("未选择")
self.conn_status_label.setStyleSheet("color: #666; padding: 4px;")
lv.addWidget(self.conn_status_label)
splitter.addWidget(left)
# ====== 右侧:Tab 区 ======
self.tabs = QTabWidget()
self.tabs.setDocumentMode(True)
# Tab1: 终端
self.terminal_panel = TerminalTabWidget(self.manager)
self.tabs.addTab(self.terminal_panel, "⌨ 终端")
# Tab2: 文件浏览
self.file_browser = FileBrowser(self.manager)
self.tabs.addTab(self.file_browser, "📁 文件")
# Tab3: 监控
self.monitor = MonitorPanel(self.manager)
self.tabs.addTab(self.monitor, "📊 监控")
# Tab4: AI Agent
self.ai_panel = AIChatPanel(self.manager, self.agent)
self.tabs.addTab(self.ai_panel, "🤖 AI Agent")
splitter.addWidget(self.tabs)
splitter.setSizes([280, 1000])
def _build_menu(self):
menubar = self.menuBar()
# 文件
m_file = menubar.addMenu("文件(&F)")
act_export = QAction("导出主机配置", self)
act_export.triggered.connect(self._export_hosts)
m_file.addAction(act_export)
act_import = QAction("导入主机配置", self)
act_import.triggered.connect(self._import_hosts)
m_file.addAction(act_import)
m_file.addSeparator()
act_exit = QAction("退出", self)
act_exit.setShortcut("Ctrl+Q")
act_exit.triggered.connect(self.close)
m_file.addAction(act_exit)
# AI
m_ai = menubar.addMenu("AI(&A)")
act_ai = QAction("⚙ AI 设置...", self)
act_ai.triggered.connect(self._show_ai_config)
m_ai.addAction(act_ai)
act_clear = QAction("清空 AI 对话", self)
act_clear.triggered.connect(lambda: self.ai_panel._clear())
m_ai.addAction(act_clear)
# 视图
m_view = menubar.addMenu("视图(&V)")
self.act_dark = QAction("🌙 暗色主题", self, checkable=True)
self.act_dark.setChecked(get_theme() == "dark")
self.act_dark.triggered.connect(self._toggle_theme)
m_view.addAction(self.act_dark)
# 帮助
m_help = menubar.addMenu("帮助(&H)")
act_about = QAction("关于", self)
act_about.triggered.connect(self._about)
m_help.addAction(act_about)
def _build_statusbar(self):
self.statusBar().showMessage(f"{APP_NAME} v{APP_VERSION} 就绪")
# ============================================================
# 主机列表(树形 + 分组)
# ============================================================
def _load_hosts_to_list(self):
self.host_tree.clear()
by_group = self.manager.list_hosts_by_group()
# 按分组顺序添加
for gname in self.manager.list_groups():
hosts = by_group.get(gname, [])
self._add_group_item(gname, hosts)
# 未分组
ungrouped = by_group.get("", [])
self._add_group_item("", ungrouped)
# 默认展开所有分组
self.host_tree.expandAll()
self._refresh_status_indicator()
def _add_group_item(self, group_name: str, hosts: list):
"""添加一个分组节点 + 其下主机"""
label = group_name if group_name else "未分组"
icon = "📂" if group_name else "📭"
group_item = QTreeWidgetItem([f"{icon} {label} ({len(hosts)})"])
group_item.setFont(0, QFont("sans-serif", 9, QFont.Bold))
group_item.setData(0, Qt.UserRole, "__group__")
group_item.setData(0, Qt.UserRole + 1, group_name)
self.host_tree.addTopLevelItem(group_item)
for h in hosts:
name = h.get("name", h.get("host", "?"))
info = f"🖥 {name}\n {h.get('username','')}@{h.get('host','')}:{h.get('port',22)}"
item = QTreeWidgetItem([info])
item.setData(0, Qt.UserRole, h.get("id"))
group_item.addChild(item)
def _on_host_selected(self):
"""选中主机时切换到对应主机;选中分组不做任何事"""
items = self.host_tree.selectedItems()
if not items:
self.current_host_id = None
return
item = items[0]
data = item.data(0, Qt.UserRole)
if data == "__group__" or not data:
# 选中了分组节点,不切换主机
return
host_id = data
self.current_host_id = host_id
# 不再自动 attach:用户主动连才开标签,避免"切换主机=关闭旧 shell"破坏多标签体验
# 但当前激活标签若是同主机的空标签,可激活它
self.file_browser.set_host(host_id)
self.monitor.set_host(host_id)
self.ai_panel.set_host(host_id)
self._refresh_status_indicator()
# 如果已连接:自动新建一个终端标签
conn = self.manager.get_connection(host_id)
if conn and conn.connected:
self.terminal_panel.open_terminal(host_id, conn=conn)
self.tabs.setCurrentIndex(0)
# 否则什么都不做(保持现有标签不被打扰)
def _on_host_double_clicked(self, item: QTreeWidgetItem, _col: int):
"""双击主机节点 = 连接;双击分组节点 = 展开/折叠"""
data = item.data(0, Qt.UserRole)
if data == "__group__":
item.setExpanded(not item.isExpanded())
return
if data:
self._do_connect()
def _on_host_context_menu(self, pos):
"""右键菜单:分组操作 + 主机操作"""
item = self.host_tree.itemAt(pos)
menu = QMenu(self)
# 空白处:新建分组
if item is None:
menu.addAction("📁 新建分组", self._add_group_dialog)
menu.exec_(self.host_tree.viewport().mapToGlobal(pos))
return
data = item.data(0, Qt.UserRole)
if data == "__group__":
group_name = item.data(0, Qt.UserRole + 1)
menu.addAction("📁 新建分组", self._add_group_dialog)
if group_name: # 非未分组
menu.addAction("✏ 重命名分组", lambda: self._rename_group_dialog(group_name))
menu.addAction("🗑 删除分组", lambda: self._delete_group_dialog(group_name))
menu.exec_(self.host_tree.viewport().mapToGlobal(pos))
else:
# 主机节点
host_id = data
host = self.manager.get_host(host_id)
if not host:
return
menu.addAction("🔌 连接", self._do_connect)
menu.addAction("✏ 编辑", self._edit_host)
menu.addAction("🗑 删除", self._delete_host)
menu.addSeparator()
# 移动到分组
move_menu = menu.addMenu("📦 移动到分组")
current_group = host.get("group", "")
for gname in self.manager.list_groups():
if gname != current_group:
move_menu.addAction(f"📁 {gname}", lambda g=gname: self._move_host(host_id, g))
move_menu.addAction("📭 未分组", lambda: self._move_host(host_id, ""))
move_menu.addAction(" 新建分组并移入...", lambda: self._new_group_and_move(host_id))
menu.exec_(self.host_tree.viewport().mapToGlobal(pos))
# ============================================================
# 分组操作
# ============================================================
def _add_group_dialog(self):
name, ok = QInputDialog.getText(self, "新建分组", "分组名称:")
if ok and name.strip():
if self.manager.add_group(name):
self._load_hosts_to_list()
self.statusBar().showMessage(f"已新建分组「{name.strip()}", 3000)
else:
QMessageBox.warning(self, "提示", "分组名称为空或已存在")
def _rename_group_dialog(self, old_name: str):
new_name, ok = QInputDialog.getText(self, "重命名分组", "新名称:", text=old_name)
if ok and new_name.strip() and new_name.strip() != old_name:
if self.manager.rename_group(old_name, new_name):
self._load_hosts_to_list()
self.statusBar().showMessage(f"已重命名: {old_name}{new_name.strip()}", 3000)
else:
QMessageBox.warning(self, "提示", "名称为空或已存在")
def _delete_group_dialog(self, group_name: str):
hosts = [h for h in self.manager.list_hosts() if h.get("group") == group_name]
msg = f"删除分组「{group_name}」?"
if hosts:
msg += f"\n组内 {len(hosts)} 台主机将移到「未分组」。"
if QMessageBox.question(self, "确认", msg, QMessageBox.Yes | QMessageBox.No) == QMessageBox.Yes:
self.manager.remove_group(group_name)
self._load_hosts_to_list()
self.statusBar().showMessage(f"已删除分组「{group_name}", 3000)
def _move_host(self, host_id: str, group_name: str):
self.manager.move_host_to_group(host_id, group_name)
self._load_hosts_to_list()
label = group_name if group_name else "未分组"
self.statusBar().showMessage(f"已移动到「{label}", 3000)
def _new_group_and_move(self, host_id: str):
name, ok = QInputDialog.getText(self, "新建分组并移入", "分组名称:")
if ok and name.strip():
if self.manager.add_group(name):
self.manager.move_host_to_group(host_id, name.strip())
self._load_hosts_to_list()
self.statusBar().showMessage(f"已新建分组并移入「{name.strip()}", 3000)
else:
QMessageBox.warning(self, "提示", "分组名称为空或已存在")
def _refresh_status_indicator(self):
if not self.current_host_id:
self.conn_status_label.setText("未选择主机")
return
c = self.manager.get_connection(self.current_host_id)
if c and c.connected:
self.conn_status_label.setText(f"🟢 已连接: {c.username}@{c.host}:{c.port}")
self.conn_status_label.setStyleSheet("color: #2e7d32; padding: 4px;")
else:
self.conn_status_label.setText("🔴 未连接")
self.conn_status_label.setStyleSheet("color: #c62828; padding: 4px;")
def terminal_input_set_enabled(self, enabled: bool):
self.cmd_input.setEnabled(enabled)
self.btn_run.setEnabled(enabled)
# ============================================================
# 主机 CRUD
# ============================================================
def _add_host(self):
info = self._prompt_host_info()
if info is None:
return
self.manager.add_host(info)
self._load_hosts_to_list()
self.statusBar().showMessage("已新增主机", 3000)
def _edit_host(self):
if not self.current_host_id:
return
h = self.manager.get_host(self.current_host_id)
if not h:
return
info = self._prompt_host_info(h)
if info is None:
return
self.manager.update_host(self.current_host_id, info)
self._load_hosts_to_list()
self.statusBar().showMessage("已更新主机", 3000)
def _delete_host(self):
if not self.current_host_id:
return
h = self.manager.get_host(self.current_host_id)
if not h:
return
if QMessageBox.question(
self, "确认删除",
f"确定删除主机「{h.get('name', h.get('host'))}」?",
QMessageBox.Yes | QMessageBox.No
) != QMessageBox.Yes:
return
self.manager.remove_host(self.current_host_id)
self._load_hosts_to_list()
self.statusBar().showMessage("已删除", 3000)
def _prompt_host_info(self, current: Optional[dict] = None):
from .host_dialog import HostDialog
dlg = HostDialog(self, current)
if dlg.exec_() == dlg.Accepted:
return dlg.get_value()
return None
# ============================================================
# 连接
# ============================================================
def _do_connect(self):
if not self.current_host_id:
QMessageBox.information(self, "提示", "请先选择一台主机")
return
if self.connect_worker and self.connect_worker.isRunning():
return
h = self.manager.get_host(self.current_host_id)
self.statusBar().showMessage(f"正在连接 {h.get('host')}...")
self.btn_connect.setEnabled(False)
self.connect_worker = ConnectWorker(self.manager, self.current_host_id)
self.connect_worker.finished_with.connect(self._on_connect_done)
self.connect_worker.start()
def _on_connect_done(self, host_id: str, ok: bool, msg: str):
self.btn_connect.setEnabled(True)
if ok:
self.statusBar().showMessage(msg, 5000)
# 同步到 UI
self.file_browser.set_host(host_id)
self.monitor.set_host(host_id)
# 打开新终端标签
conn = self.manager.get_connection(host_id)
if conn:
self.terminal_panel.open_terminal(host_id, conn=conn)
self.tabs.setCurrentIndex(0) # 切到终端 Tab
else:
QMessageBox.critical(self, "连接失败", msg)
self.statusBar().showMessage(f"连接失败: {msg}", 5000)
self._refresh_status_indicator()
def _do_disconnect(self):
if not self.current_host_id:
return
# 只关闭当前激活标签的 shell,其他标签不受影响
self.terminal_panel.close_shell()
self.manager.disconnect(self.current_host_id)
self.statusBar().showMessage("已断开", 3000)
self._refresh_status_indicator()
# ============================================================
# AI / 关于
# ============================================================
def _apply_theme(self):
theme = get_theme()
qss = get_qss(theme)
QApplication.instance().setStyleSheet(qss)
def _toggle_theme(self):
new_theme = "dark" if self.act_dark.isChecked() else "light"
set_theme(new_theme)
self._apply_theme()
label = "暗色" if new_theme == "dark" else "亮色"
self.statusBar().showMessage(f"已切换到{label}主题", 3000)
def _show_ai_config(self):
dlg = AIConfigDialog(self.agent, self)
if dlg.exec_():
self.statusBar().showMessage("AI 配置已更新", 3000)
def _about(self):
QMessageBox.about(
self, "关于",
f"<h3>{APP_NAME} v{APP_VERSION}</h3>"
"<p>基于 PyQt5 + paramiko 的 Windows SSH 客户端</p>"
"<ul>"
"<li>多主机管理与连接</li>"
"<li>远程终端</li>"
"<li>SFTP 文件浏览 / 上传 / 下载</li>"
"<li>CPU / 内存 / 磁盘 / 网络 实时监控</li>"
"<li>AI AgentOpenAI 兼容 API,支持工具调用)</li>"
"</ul>"
"<p style='color:#888;'>本程序使用 paramiko、PyQt5、psutil、requests 等开源库。</p>"
)
def _export_hosts(self):
import json
path, _ = QFileDialog.getSaveFileName(self, "导出主机配置", "hosts.json", "JSON (*.json)")
if not path:
return
with open(path, "w", encoding="utf-8") as f:
json.dump(self.manager.list_hosts(), f, ensure_ascii=False, indent=2)
self.statusBar().showMessage(f"已导出到 {path}", 5000)
def _import_hosts(self):
import json
path, _ = QFileDialog.getOpenFileName(self, "导入主机配置", "", "JSON (*.json)")
if not path:
return
try:
with open(path, "r", encoding="utf-8") as f:
hosts = json.load(f)
for h in hosts:
if "id" in h:
del h["id"]
self.manager.add_host(h)
self._load_hosts_to_list()
self.statusBar().showMessage(f"已导入 {len(hosts)} 台主机", 5000)
except Exception as e:
QMessageBox.critical(self, "导入失败", str(e))
# ============================================================
# 窗口边缘拖动调整大小(普通 + 最大化时)
# ============================================================
def _hit_test_edge(self, pos) -> str:
"""根据 pos(窗口内坐标)返回哪条边被命中
返回 '' / 'L'/'R'/'T'/'B'/'TL'/'TR'/'BL'/'BR'
最大化/全屏时不返回(避免和系统最大化手势冲突)。
"""
if self.isMaximized() or self.isFullScreen():
return ""
w, h = self.width(), self.height()
m = self._resize_margin
x, y = pos.x(), pos.y()
# 角
if x <= m and y <= m:
return "TL"
if x >= w - m and y <= m:
return "TR"
if x <= m and y >= h - m:
return "BL"
if x >= w - m and y >= h - m:
return "BR"
# 边
if x <= m:
return "L"
if x >= w - m:
return "R"
if y <= m:
return "T"
if y >= h - m:
return "B"
return ""
def _edge_to_cursor(self, edge: str):
from PyQt5.QtGui import QCursor
from PyQt5.QtCore import Qt as _Qt
cursors = {
"L": _Qt.SizeHorCursor, "R": _Qt.SizeHorCursor,
"T": _Qt.SizeVerCursor, "B": _Qt.SizeVerCursor,
"TL": _Qt.SizeFDiagCursor, "BR": _Qt.SizeFDiagCursor,
"TR": _Qt.SizeBDiagCursor, "BL": _Qt.SizeBDiagCursor,
}
c = cursors.get(edge)
if c is not None:
self.setCursor(QCursor(c))
def _restore_cursor(self):
self.unsetCursor()
def mouseMoveEvent(self, e):
# 拖动中
if self._resize_edge and self._resize_start_geo and self._resize_start_pos:
self._do_resize(e.globalPos())
return
# 否则只更新光标
if not self.isMaximized() and not self.isFullScreen():
edge = self._hit_test_edge(e.pos())
if edge:
self._edge_to_cursor(edge)
else:
self._restore_cursor()
else:
self._restore_cursor()
super().mouseMoveEvent(e)
def mousePressEvent(self, e):
if e.button() == Qt.LeftButton:
# 特殊情况:窗口最大化时,从顶部边缘按下 → 还原并跟随鼠标调整
if self.isMaximized() and e.pos().y() <= self._resize_margin:
self._restore_from_max(e.globalPos())
e.accept()
return
edge = self._hit_test_edge(e.pos())
if edge:
self._resize_edge = edge
self._resize_start_geo = self.geometry()
self._resize_start_pos = e.globalPos()
e.accept()
return
super().mousePressEvent(e)
def _restore_from_max(self, global_pos):
"""从最大化状态恢复窗口,并将宽度按鼠标位置调整"""
# 记录当前最大化的位置
self._dragging_from_max = True
# 屏幕可用区域
screen = QApplication.primaryScreen().availableGeometry()
# 还原(先恢复原始 geometry)
self.showNormal()
# 设定宽度:按鼠标 X 位置占屏幕的比例
ratio = max(0.2, min(0.8, (global_pos.x() - screen.x()) / screen.width()))
new_w = int(screen.width() * ratio)
new_w = max(self.minimumWidth(), new_w)
new_h = int(screen.height() * 0.85)
new_h = max(self.minimumHeight(), new_h)
new_x = max(screen.x(), global_pos.x() - new_w // 2)
new_y = screen.y() + (screen.height() - new_h) // 2
self.setGeometry(new_x, new_y, new_w, new_h)
# 让后续 mouseMove 继续调整
self._resize_edge = "TL" # 模拟从左上角拖
self._resize_start_geo = self.geometry()
self._resize_start_pos = global_pos
def mouseReleaseEvent(self, e):
if self._resize_edge:
self._resize_edge = ""
self._resize_start_geo = None
self._resize_start_pos = None
e.accept()
return
super().mouseReleaseEvent(e)
def _do_resize(self, global_pos):
"""根据当前鼠标位置和拖动方向调整窗口 geometry"""
geo = self._resize_start_geo
if geo is None:
return
dx = global_pos.x() - self._resize_start_pos.x()
dy = global_pos.y() - self._resize_start_pos.y()
# 屏幕可用区域(用于限制)
try:
screen = QApplication.primaryScreen().availableGeometry()
except Exception:
from PyQt5.QtCore import QRect
screen = QRect(0, 0, 10000, 10000)
# 最小尺寸:尊重 QMainWindow 自己的 minimumWidth/minimumHeight
min_w = self.minimumWidth() if self.minimumWidth() > 0 else 400
min_h = self.minimumHeight() if self.minimumHeight() > 0 else 300
new_x, new_y, new_w, new_h = geo.x(), geo.y(), geo.width(), geo.height()
edge = self._resize_edge
# 左边
if "L" in edge:
new_x = geo.x() + dx
new_w = geo.width() - dx
if new_w < min_w:
new_w = min_w
new_x = geo.x() + geo.width() - min_w
# 右边
if "R" in edge:
new_w = geo.width() + dx
if new_w < min_w:
new_w = min_w
# 上边
if "T" in edge:
new_y = geo.y() + dy
new_h = geo.height() - dy
if new_h < min_h:
new_h = min_h
new_y = geo.y() + geo.height() - min_h
# 下边
if "B" in edge:
new_h = geo.height() + dy
if new_h < min_h:
new_h = min_h
# 屏幕限制
if new_x < screen.x():
new_x = screen.x()
if new_y < screen.y():
new_y = screen.y()
if new_x + new_w > screen.x() + screen.width():
new_w = screen.x() + screen.width() - new_x
if new_y + new_h > screen.y() + screen.height():
new_h = screen.y() + screen.height() - new_y
# 拆成 move + resize + setGeometry 兜底(部分平台 setGeometry 会失败)
self.resize(new_w, new_h)
self.move(new_x, new_y)
if (self.width(), self.height()) != (new_w, new_h):
self.setGeometry(new_x, new_y, new_w, new_h)
def leaveEvent(self, e):
if not self._resize_edge:
self._restore_cursor()
super().leaveEvent(e)
def changeEvent(self, e):
"""窗口状态变化:清除残留的拖动状态"""
from PyQt5.QtCore import QEvent as _QEvent
if e.type() == _QEvent.WindowStateChange:
# 状态变化(最大化/还原)时清掉拖动状态
self._resize_edge = ""
self._resize_start_geo = None
self._resize_start_pos = None
self._restore_cursor()
super().changeEvent(e)
def closeEvent(self, e):
try:
self.monitor._stop_worker()
self.terminal_panel.shutdown()
self.manager.close_all()
except Exception:
pass
super().closeEvent(e)