python3+PyQt5實現(xiàn)自定義窗口部件Counters
更新時間：2018年04月20日 14:29:07 作者：basisworker
這篇文章主要為大家詳細介紹了python3+PyQt5實現(xiàn)自定義窗口部件，Counters自定窗口部件，具有一定的參考價值，感興趣的小伙伴們可以參考一下
本文通過Python3+PyQt5實現(xiàn)自定義部件–Counters自定 窗口部件。這個窗口是3*3的網(wǎng)格。本文有兩個例子如下：
/home/yrd/eric_workspace/chap11/counters.py。
/home/yrd/eric_workspace/chap11/counters_dnd.py
第二個例子在第一個例子的基礎(chǔ)上實現(xiàn)能通過鼠標拖拽球到不同的網(wǎng)格中。
/home/yrd/eric_workspace/chap11/counters.py
#!/usr/bin/env python3
from PyQt5.QtCore import (QRectF, QSize, Qt)
from PyQt5.QtWidgets import (QApplication, QSizePolicy,QWidget)
from PyQt5.QtGui import QPainter,QPen
BLANK, RED, YELLOW = range(3)
class CountersWidget(QWidget):
def __init__(self, parent=None):
super(CountersWidget, self).__init__(parent)
self.setSizePolicy(QSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding))
self.grid = [[BLANK] * 3 for i in range(3)]
self.selected = [0, 0]
self.setMinimumSize(self.minimumSizeHint())
def sizeHint(self):
return QSize(200, 200)
def minimumSizeHint(self):
return QSize(100, 100)
def mousePressEvent(self, event):
xOffset = self.width() / 3
yOffset = self.height() / 3
if event.x() < xOffset:
x = 0
elif event.x() < 2 * xOffset:
x = 1
else:
x = 2
if event.y() < yOffset:
y = 0
elif event.y() < 2 * yOffset:
y = 1
else:
y = 2
cell = self.grid[x][y]
if cell == BLANK:
cell = RED
elif cell == RED:
cell = YELLOW
else:
cell = BLANK
self.grid[x][y] = cell
self.selected = [x, y]
self.update()
def keyPressEvent(self, event):
if event.key() == Qt.Key_Left:
self.selected[0] = (2 if self.selected[0] == 0
else self.selected[0] - 1)
elif event.key() == Qt.Key_Right:
self.selected[0] = (0 if self.selected[0] == 2
else self.selected[0] + 1)
elif event.key() == Qt.Key_Up:
self.selected[1] = (2 if self.selected[1] == 0
else self.selected[1] - 1)
elif event.key() == Qt.Key_Down:
self.selected[1] = (0 if self.selected[1] == 2
else self.selected[1] + 1)
elif event.key() == Qt.Key_Space:
x, y = self.selected
cell = self.grid[x][y]
if cell == BLANK:
cell = RED
elif cell == RED:
cell = YELLOW
else:
cell = BLANK
self.grid[x][y] = cell
self.update()
def paintEvent(self, event=None):
painter = QPainter(self)
painter.setRenderHint(QPainter.Antialiasing, True)
xOffset = self.width() / 3
yOffset = self.height() / 3
for x in range(3):
for y in range(3):
cell = self.grid[x][y]
rect = (QRectF(x * xOffset, y * yOffset,
xOffset, yOffset).adjusted(0.5, 0.5, -0.5, -0.5))
color = None
if cell == RED:
color = Qt.red
elif cell == YELLOW:
color = Qt.yellow
if color is not None:
painter.save()
painter.setPen(Qt.black)
painter.setBrush(color)
painter.drawEllipse(rect.adjusted(2, 2, -2, -2))
painter.restore()
if [x, y] == self.selected:
painter.setPen(QPen(Qt.blue, 3))
else:
painter.setPen(Qt.black)
painter.drawRect(rect)
if __name__ == "__main__":
import sys
app = QApplication(sys.argv)
form = CountersWidget()
form.setWindowTitle("Counters")
form.show()
app.exec_()
/home/yrd/eric_workspace/chap11/counters_dnd.py
#!/usr/bin/env python3
from PyQt5.QtCore import (QRectF, QSize, Qt)
from PyQt5.QtWidgets import (QApplication, QSizePolicy,QWidget)
from PyQt5.QtGui import QPainter,QPen,QPixmap,QCursor
BLANK, RED, YELLOW = range(3)
class CountersWidget(QWidget):
def __init__(self, parent=None):
super(CountersWidget, self).__init__(parent)
self.setSizePolicy(QSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding))
self.grid = [[BLANK] * 3 for i in range(3)]
self.selected = [0, 0]
self.setMinimumSize(self.minimumSizeHint())
def sizeHint(self):
return QSize(200, 200)
def minimumSizeHint(self):
return QSize(100, 100)
def _xFromEventX(self, event):
xOffset = self.width() / 3
if event.x() < xOffset:
x = 0
elif event.x() < 2 * xOffset:
x = 1
else:
x = 2
return x
def _yFromEventY(self, event):
yOffset = self.width() / 3
if event.y() < yOffset:
y = 0
elif event.y() < 2 * yOffset:
y = 1
else:
y = 2
return y
def mouseDoubleClickEvent(self, event):
x = self._xFromEventX(event)
y = self._yFromEventY(event)
cell = self.grid[x][y]
if cell == BLANK:
cell = RED
elif cell == RED:
cell = YELLOW
else:
cell = BLANK
self.grid[x][y] = cell
self.selected = [x, y]
self.update()
def keyPressEvent(self, event):
if event.key() == Qt.Key_Left:
self.selected[0] = (2 if self.selected[0] == 0
else self.selected[0] - 1)
elif event.key() == Qt.Key_Right:
self.selected[0] = (0 if self.selected[0] == 2
else self.selected[0] + 1)
elif event.key() == Qt.Key_Up:
self.selected[1] = (2 if self.selected[1] == 0
else self.selected[1] - 1)
elif event.key() == Qt.Key_Down:
self.selected[1] = (0 if self.selected[1] == 2
else self.selected[1] + 1)
elif event.key() == Qt.Key_Space:
x, y = self.selected
cell = self.grid[x][y]
if cell == BLANK:
cell = RED
elif cell == RED:
cell = YELLOW
else:
cell = BLANK
self.grid[x][y] = cell
self.update()
def paintEvent(self, event=None):
painter = QPainter(self)
painter.setRenderHint(QPainter.Antialiasing, True)
xOffset = self.width() / 3
yOffset = self.height() / 3
for x in range(3):
for y in range(3):
cell = self.grid[x][y]
rect = (QRectF(x * xOffset, y * yOffset,
xOffset, yOffset).adjusted(0.5, 0.5, -0.5, -0.5))
color = None
if cell == RED:
color = Qt.red
elif cell == YELLOW:
color = Qt.yellow
if color is not None:
painter.save()
painter.setPen(Qt.black)
painter.setBrush(color)
painter.drawEllipse(rect.adjusted(2, 2, -2, -2))
painter.restore()
if [x, y] == self.selected:
painter.setPen(QPen(Qt.blue, 3))
else:
painter.setPen(Qt.black)
painter.drawRect(rect)
def mousePressEvent(self, event):
self.x = self._xFromEventX(event)
self.y = self._yFromEventY(event)
cell = self.grid[self.x][self.y]
color = Qt.darkGray
if cell == RED:
color = Qt.red
elif cell == YELLOW:
color = Qt.yellow
pixmap = QPixmap(12, 12)
pixmap.fill(color)
self.setCursor(QCursor(pixmap))
def mouseReleaseEvent(self, event):
x = self._xFromEventX(event)
y = self._yFromEventY(event)
if self.x != x or self.y != y:
cell = self.grid[self.x][self.y]
self.grid[self.x][self.y] = BLANK
self.grid[x][y] = cell
self.selected = [x, y]
self.update()
self.setCursor(Qt.ArrowCursor)
if __name__ == "__main__":
import sys
app = QApplication(sys.argv)
form = CountersWidget()
form.setWindowTitle("Counters")
form.show()
app.exec_()
運行結(jié)果：
以上就是本文的全部內(nèi)容，希望對大家的學習有所幫助，也希望大家多多支持腳本之家。
您可能感興趣的文章:
- Python中Collections模塊的Counter容器類使用教程
- python函數(shù)enumerate,operator和Counter使用技巧實例小結(jié)
- 淺談python中統(tǒng)計計數(shù)的幾種方法和Counter詳解
- Python中使用Counter進行字典創(chuàng)建以及key數(shù)量統(tǒng)計的方法
- 簡單掌握Python的Collections模塊中counter結(jié)構(gòu)的用法
- python Matplotlib數(shù)據(jù)可視化（2）：詳解三大容器對象與常用設(shè)置
- Docker構(gòu)建python Flask+ nginx+uwsgi容器
- Python容器類型公共方法總結(jié)
- 詳解Python 中的容器 collections
- Python魔法方法 容器部方法詳解
- Python統(tǒng)計可散列的對象之容器Counter詳解
相關(guān)文章
Python 有很多黑魔法，為了不分你的心，今天只講 metaclass。對于 metaclass 這種特性，有兩種極端的觀點：下面小編將為大家詳細的介紹，剛興趣的小伙伴可以參考一下2021-09-09
基于Python?schedule的任務(wù)調(diào)度詳解
schedule?是Python的第三方任務(wù)調(diào)度庫,可以用來做定時任務(wù),這篇文章主要為大家介紹了Python利用schedule進行任務(wù)調(diào)度的相關(guān)操作,需要的可以了解下2025-02-02
這篇文章主要介紹了Python繪圖庫Matplotlib的基本用法,文中有非常詳細的代碼示例,對正在學習python的小伙伴們有非常好的幫助,需要的朋友可以參考下2021-05-05
在Python編程中處理JSON文件是一項基本但關(guān)鍵的技能,文章通過一個簡單的讀取JSON文件的代碼示例出發(fā),分析了代碼中存在的問題,將遇到的問題解決方法介紹也非常詳細,需要的朋友可以參考下2024-10-10
這篇文章主要介紹了Python的字符串，非常不錯，具有一定的參考借鑒價值,需要的朋友可以參考下，希望能夠給你帶來幫助2021-10-10
今天小編就為大家分享一篇關(guān)于Python中創(chuàng)建二維數(shù)組，小編覺得內(nèi)容挺不錯的，現(xiàn)在分享給大家，具有很好的參考價值，需要的朋友一起跟隨小編來看看吧2018-10-10
Python面向?qū)ο笾甒eb靜態(tài)服務(wù)器
這篇文章主要為大家詳細介紹了Python面向?qū)ο笾甒eb靜態(tài)服務(wù)器，具有一定的參考價值，感興趣的小伙伴們可以參考一下2019-09-09
PaddleNLP ppdiffusers 自動生成兔了個兔海報
這篇文章主要為大家介紹了PaddleNLP ppdiffusers 自動生成兔了個兔海報示例詳解，有需要的朋友可以借鑒參考下，希望能夠有所幫助，祝大家多多進步，早日升職加薪2023-01-01
在本篇文章里小編給大家整理的是一篇關(guān)于Python自動化測試筆試面試時常見的編程題，需要的朋友們可以學習參考下。2020-03-03
這篇文章主要介紹了Pandas之ReIndex重新索引的實現(xiàn)，文中通過示例代碼介紹的非常詳細，對大家的學習或者工作具有一定的參考學習價值，需要的朋友們下面隨著小編來一起學習學習吧2019-06-06