init

app/view/widgets/page_flip_widget.py

@@ -0,0 +1,162 @@
+# coding: utf-8
+# flip bookmark
+
+from PyQt6.QtCore import pyqtSignal
+from PyQt6.QtGui import QIntValidator
+from PyQt6.QtWidgets import QHBoxLayout
+from qfluentwidgets import (BodyLabel, CardWidget, FluentIcon, LineEdit, PushButton, ToolButton)
+
+
+class PageFlipWidget(CardWidget):
+    # 定义页码变化信号
+    pageChangeSignal = pyqtSignal(int)
+
+    """ 
+    page : 总页码,默认为10
+    currentPage : 当前页码
+    numberButtonList : 页码按钮列表
+    currentButtonNumbet : 当前显示的按钮数字列表
+    """
+
+    def __init__(self, parent=None, page=10):
+        super().__init__(parent)
+        self.page = page
+        self.currentPage = 1
+        self.numberButtonList = []
+        self.currentButtonNumber = []
+
+        # 定义翻页按钮
+        self.leftPageButton = ToolButton(self)
+        self.rightPageButton = ToolButton(self)
+
+        # 定义跳转页面组件
+        self.pageLineEdit = LineEdit(self)
+        self.allPageLabel = BodyLabel(self)
+        self.turnPageButton = PushButton(self)
+
+        self.__initWidget()
+        # 动态设置按钮
+        self._addButton()
+
+    def __initWidget(self):
+        # 组件设置
+        self.leftPageButton.setIcon(FluentIcon.PAGE_LEFT)
+        self.leftPageButton.setFixedSize(40, 40)
+        self.leftPageButton.clicked.connect(self.backPage)
+
+        self.rightPageButton.setIcon(FluentIcon.PAGE_RIGHT)
+        self.rightPageButton.setFixedSize(40, 40)
+        self.rightPageButton.clicked.connect(self.forwardPage)
+
+        self.pageLineEdit.setText("1")
+        self.pageLineEdit.setValidator(QIntValidator())
+        self.pageLineEdit.editingFinished.connect(self._validator)
+        self.pageLineEdit.setFixedWidth(45)
+
+        self.allPageLabel.setText(f"/{self.page}")
+
+        self.turnPageButton.setText(self.tr("jump"))
+        self.turnPageButton.setFixedWidth(60)
+        self.turnPageButton.clicked.connect(self.turnPage)
+
+        self.__initLayout()
+
+    def __initLayout(self):
+        # 布局设置
+        self.layouts = QHBoxLayout(self)
+
+        self.layouts.addWidget(self.leftPageButton)
+        self.layouts.addWidget(self.rightPageButton)
+
+        self.layouts.addSpacing(30)
+        self.layouts.addWidget(self.pageLineEdit)
+        self.layouts.addWidget(self.allPageLabel)
+        self.layouts.addWidget(self.turnPageButton)
+
+    # 向后翻页
+    def forwardPage(self):
+        if self.page > 5:
+            if int(self.numberButtonList[-1].text()) < self.page:
+                for i in self.numberButtonList:
+                    i.setText(str(int(i.text()) + 1))
+
+                for i in range(len(self.currentButtonNumber)):
+                    self.currentButtonNumber[i] += 1
+        if self.currentPage < self.page:
+            self.currentPage += 1
+            self.pageLineEdit.setText(str(self.currentPage))
+            self.pageChangeSignal.emit(self.currentPage)
+
+    # 向前翻页
+    def backPage(self):
+        if int(self.numberButtonList[0].text()) > 1:
+            for i in self.numberButtonList:
+                i.setText(str(int(i.text()) - 1))
+
+            for i in range(len(self.currentButtonNumber)):
+                self.currentButtonNumber[i] -= 1
+        if self.currentPage > 1:
+            self.currentPage -= 1
+            self.pageLineEdit.setText(str(self.currentPage))
+            self.pageChangeSignal.emit(self.currentPage)
+
+    # 跳转页面
+    def turnPage(self, page: int):
+        """
+        page : 目标跳转页
+        """
+        page = int(self.pageLineEdit.text())
+        numberList = [1, 2, 3, 4, 5]
+        if page not in numberList:
+
+            while True:
+                numberList = [x + 1 for x in numberList]
+                if page in numberList and max(numberList) <= self.page:
+                    break
+
+        self.currentButtonNumber = numberList
+
+        for i in self.numberButtonList:
+            i.setText(str(self.currentButtonNumber[self.numberButtonList.index(i)]))
+        self.pageChangeSignal.emit(page)
+        self.currentPage = page
+
+    # 输入框判断器,规定只可输入数字,并且数字不能超过规定范围
+    def _validator(self):
+        page = int(self.pageLineEdit.text())
+        if page <= 0:
+            page = 1
+        elif page > self.page:
+            page = self.page
+        self.pageLineEdit.setText(str(page))
+
+    # 动态添加按钮
+    def _addButton(self):
+        if self.page >= 5:
+            for i in range(1, 6):
+                numberButton = PushButton(str(i), self)
+                numberButton.setFixedSize(40, 40)
+                numberButton.clicked.connect(self._pageChanged)
+
+                self.layouts.insertWidget(i, numberButton)
+                self.numberButtonList.append(numberButton)
+            self.currentButtonNumber = [1, 2, 3, 4, 5]
+
+        else:
+            for i in range(1, self.page + 1):
+                numberButton = PushButton(str(i), self)
+                numberButton.setFixedSize(40, 40)
+                numberButton.clicked.connect(self._pageChanged)
+
+                self.layouts.insertWidget(i, numberButton)
+                self.numberButtonList.append(numberButton)
+                self.currentButtonNumber.append(i)
+
+    # 页面翻页时发出信号
+    def _pageChanged(self, checked):
+        sender = self.sender()
+        if sender:
+            button_text = sender.text()
+            self.pageChangeSignal.emit(int(button_text))
+            self.pageLineEdit.setText(button_text)
+            self.currentPage = int(button_text)