from PyQt5.QtCore import pyqtSignal, QSize, Qt
from PyQt5.QtWidgets import QWidget, QHBoxLayout, QToolButton, QLineEdit, QLabel
class PaginationWidget(QWidget):
pageChanged = pyqtSignal(int)
def __init__(self, parent=None):
QWidget.__init__(self, parent=parent)
self.rows_per_page = 1000
self.page_count = 1
self.current_page = 1
self.init_ui()
def init_ui(self):
layout = QHBoxLayout(self)
self.first_page_btn = QToolButton(self)
self.first_page_btn.clicked.connect(self._on_first_page_btn_clicked)
self.first_page_btn.setArrowType(Qt.LeftArrow)
self.first_page_btn.setToolTip("First page")
layout.addWidget(self.first_page_btn)
self.prev_page_btn = QToolButton(self)
self.prev_page_btn.clicked.connect(self._on_prev_page_btn_clicked)
self.prev_page_btn.setArrowType(Qt.LeftArrow)
self.prev_page_btn.setToolTip("Previous page")
layout.addWidget(self.prev_page_btn)
self.page_edit = QLineEdit("1")
self.page_edit.setMaximumSize(45, 24)
self.page_edit.returnPressed.connect(
lambda: self.set_current_page(self.page_edit.text())
)
layout.addWidget(self.page_edit)
self.next_page_btn = QToolButton(self)
self.next_page_btn.clicked.connect(self._on_next_page_btn_clicked)
self.next_page_btn.setArrowType(Qt.RightArrow)
self.next_page_btn.setToolTip("Next page")
layout.addWidget(self.next_page_btn)
self.last_page_btn = QToolButton(self)
self.last_page_btn.clicked.connect(self._on_last_page_btn_clicked)
self.last_page_btn.setArrowType(Qt.RightArrow)
self.last_page_btn.setToolTip("Last page")
layout.addWidget(self.last_page_btn)
self.status_label = QLabel("")
layout.addWidget(self.status_label)
def set_enabled(self, enabled):
self.prev_page_btn.setEnabled(enabled)
self.next_page_btn.setEnabled(enabled)
self.last_page_btn.setEnabled(enabled)
self.first_page_btn.setEnabled(enabled)
self.status_label.setEnabled(enabled)
self.page_edit.setEnabled(enabled)
def update_status_text(self):
status = f"Page: {self.current_page} / {self.page_count}"
self.status_label.setText(status)
def set_status_text(self, text):
self.status_label.setText(text)
def set_page_count(self, page_count):
# if self.current_page > page_count:
# self.set_current_page(page_count)
self.page_count = page_count
self.update_status_text()
def set_current_page(self, page, block_signals=False):
try:
if not isinstance(page, int):
page = int(page)
except ValueError:
print(f"Exception on set_current_page: page must be integer.")
return
if page < 1:
page = 1
if page > self.page_count:
page = self.page_count
self.current_page = page
self.page_edit.setText(str(page))
self.update_status_text()
if not block_signals:
self.pageChanged.emit(page)
def _on_prev_page_btn_clicked(self):
self.set_current_page(self.current_page - 1)
def _on_next_page_btn_clicked(self):
self.set_current_page(self.current_page + 1)
def _on_first_page_btn_clicked(self):
self.set_current_page(1)
def _on_last_page_btn_clicked(self):
self.set_current_page(self.page_count)
