GSoCKanban - GitPress.io

Example Python program GSoCKanban.py This program creates a PyQt GUI

Modules

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QGridLayout
from PyQt5.QtCore import Qt, QPoint

Classes

class App(QWidget):
class DraggableButton(QPushButton):

Methods

def init(self):
def init_ui(self):
def init(self, text, parent, snap_pos):
def mousePressEvent(self, event):
def mouseMoveEvent(self, event):
def main():

Code

Example Python PyQt program :

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QGridLayout
from PyQt5.QtCore import Qt, QPoint


class App(QWidget):
    def __init__(self):
        super(App, self).__init__()
        self.setWindowTitle("Kanban Board Demonstration")
        self.init_ui()

    def init_ui(self):
        window_x = 1280
        window_y = 800
        self.setGeometry(100, 100, window_x, window_y)
        grid = QGridLayout()
        grid.setParent(self)
        button = DraggableButton("Drag", self, QPoint(0, 100))
        button2 = DraggableButton("Drag2", self, QPoint(window_x/3, 100))
        button3 = DraggableButton("Drag3", self, QPoint(window_x/1.5, 100))
        button.move(0, 100)
        button2.move(window_x/3, 100)
        button3.move(window_x / 1.5, 100)
        self.setLayout(grid)
        grid.addWidget(button, 1, 1)
        grid.addWidget(button2, 1, 2)
        grid.addWidget(button3, 1, 3)
        self.show()


class DraggableButton(QPushButton):

    def __init__(self, text, parent, snap_pos):
        super(DraggableButton, self).__init__(text, parent)
        self.move_pos = None
        self.snap_pos = snap_pos

    def mousePressEvent(self, event):
        if event.button() == Qt.LeftButton:
            self.move_pos = event.globalPos()

    def mouseMoveEvent(self, event):
        if event.buttons() == Qt.LeftButton:
            pos = self.pos()
            global_pos = event.globalPos()
            diff = global_pos - self.move_pos
            new_pos = pos + diff
            if abs(new_pos.x() - self.snap_pos.x()) <= 15 and abs(new_pos.y() - self.snap_pos.y() <= 15):
                self.move(self.snap_pos)
                return
            self.move(new_pos)
            self.move_pos = global_pos


def main():
    app = QApplication(sys.argv)
    run_app = App()
    run_app.show()
    sys.exit(app.exec_())

if __name__ == '__main__':
    main()

Useful Links

Articles: https://python-commandments.org/
PyQt: https://pythonpyqt.com/
Tutorial: https://pythonprogramminglanguage.com/