class QmyDialog(QDialog):
'''
text()是获取文本内容
setText()是设置文本内容
value()是获取数值int或者float型
setValue()是赋值
'''
def __init__(self, parent=None):
super().__init__(parent) #调用父类构造函数,创建窗体
self.ui = Ui_Dialog() #创建Ui对象
self.ui.setupUi(self) #构造UI
##==========自定义功能函数==========
##==========事件处理函数===========
##==========由connectSlotsByName()自动关联的槽函数====
def on_pushButton_clicked(self):
num = int(self.ui.lineEdit.text())
price = float(self.ui.lineEdit_2.text())
total = num * price
self.ui.lineEdit_3.setText('{}'.format(total))
@pyqtSlot(int)
def on_spinBox_valueChanged(self, count):
price = self.ui.doubleSpinBox.value() #doubleSpinBox是单价spin框的名称
self.ui.doubleSpinBox_2.setValue(count *
price) #doubleSpinBox_2是自动计价的显示框
@pyqtSlot(float)
def on_doubleSpinBox_valueChanged(self, price):
count = self.ui.spinBox.value() #spinBox是数量的spin框的名称
self.ui.doubleSpinBox_2.setValue(count * price)
class QmyDialog(QDialog):
def __init__(self, parent=None):
super().__init__(parent) #调用父类构造函数，创建窗体
self.ui = Ui_Dialog() #创建UI对象
self.ui.setupUi(self) #构造UI界面
pass
## 由connectSlotsByName() 自动与组件的信号连接的槽函数
## @pyqtSlot()
def on_btnClear_clicked(self):
pass
## @pyqtSlot()
def on_chkBoxBold_toggled(self, checked): #"Bold"
pass
## @pyqtSlot()
def on_chkBoxUnder_clicked(self): #"Underline"
pass
@pyqtSlot(bool) #修饰符指定参数类型，用于overload型的信号
def on_chkBoxItalic_clicked(self, checked):
pass
## 自定义槽函数
def do_setTextColor(self):
pass
def __init__(self, parent=None):
super().__init__(parent)
self.ui = Ui_Dialog()
self.ui.setupUi(self)
self.ui.radioButton_black.clicked.connect(self.do_setTextColor)
self.ui.radioButton_red.clicked.connect(self.do_setTextColor)
self.ui.radioButton_blue.clicked.connect(self.do_setTextColor)
def __init__(self):
super().__init__() #调用父类构造函数，创建窗体
self.ui = Ui_Dialog() #创建UI对象
self.ui.setupUi(self) #构造UI
#将clicked（）信号与统一个槽函数do_set_TextColor（）关联
self.ui.radioBlack.clicked.connect(self.do_set_TextColor)
self.ui.radioRed.clicked.connect(self.do_set_TextColor)
self.ui.radioBlue.clicked.connect(self.do_set_TextColor)
def __init__(self, parent=None):
super().__init__(parent) # 调用父类构造函数，创建窗体
self.ui=Ui_Dialog() #创建UI对象
self.ui.setupUi(self) #构造UI界面
self.ui.radioBlack.clicked.connect(self.do_setTextColor)
self.ui.radioRed.clicked.connect(self.do_setTextColor)
self.ui.radioBlue.clicked.connect(self.do_setTextColor)
class QMyDialog(QDialog):
def __init__(self, parent=None):
# 调用父类构造函数，创建窗口
super().__init__(parent)
# 创建UI对象
self.ui = Ui_Dialog()
# 构造UI
self.ui.setupUi(self)
self.ui.radioBlue.clicked.connect(self.do_setTextColor)
self.ui.radioRed.clicked.connect(self.do_setTextColor)
self.ui.radioBlack.clicked.connect(self.do_setTextColor)
def on_btnClear_clicked(self):
self.ui.textEdit.clear()
pass
def on_chkBoxBold_toggled(self, checked):
font = self.ui.textEdit.font()
font.setBold(checked)
self.ui.textEdit.setFont(font)
pass
def on_chkBoxUnder_toggled(self, checked):
font = self.ui.textEdit.font()
font.setUnderline(checked)
self.ui.textEdit.setFont(font)
pass
#def on_chkBoxItelic_clicked(self):
# checked = self.ui.chkBoxItelic.isChecked()
# font = self.ui.textEdit.font()
# font.setItalic(checked)
# self.ui.textEdit.setFont(font)
# pass
@pyqtSlot(bool)
def on_chkBoxItelic_clicked(self, checked):
font = self.ui.textEdit.font()
font.setItalic(checked)
self.ui.textEdit.setFont(font)
pass
def do_setTextColor(self):
plet = self.ui.textEdit.palette()
if (self.ui.radioBlack.isChecked()):
plet.setColor(QPalette.Text, Qt.black)
elif (self.ui.radioBlue.isChecked()):
plet.setColor(QPalette.Text, Qt.blue)
elif (self.ui.radioRed.isChecked()):
plet.setColor(QPalette.Text, Qt.red)
self.ui.textEdit.setPalette(plet)
pass
pass
class QmyDialog(QDialog):
def __init__(self):
super().__init__() #调用父类构造函数，创建窗体
self.ui = Ui_Dialog() #创建UI对象
self.ui.setupUi(self) #构造UI
#将clicked（）信号与统一个槽函数do_set_TextColor（）关联
self.ui.radioBlack.clicked.connect(self.do_set_TextColor)
self.ui.radioRed.clicked.connect(self.do_set_TextColor)
self.ui.radioBlue.clicked.connect(self.do_set_TextColor)
def on_btnClear_clicked(self):
#清空
self.ui.TextEdit.clear() #注意命名要和ui_Dialog内的命名一致
def on_checkBoxBold_toggled(self, checked):
#加粗，checked是勾选状态是一个bool型
print(checked)
font = self.ui.TextEdit.font()
# print(font)
font.setBold(checked)
self.ui.TextEdit.setFont(font)
def on_checkBoxUnder_clicked(self):
#下划线
checked = self.ui.checkBoxUnder.isChecked() #获取勾选状态,bool型
# print(checked)
font = self.ui.TextEdit.font()
font.setUnderline(checked)
self.ui.TextEdit.setFont(font)
@QtCore.pyqtSlot(bool) #书上未说明要导入QtCore
#该修饰符的作用是将函数的参数类型声明清楚，让函数明确使用的是哪一种信号（clicked（）或者是clicked(bool），这里用于区分overload型信号的选择
def on_checkBoxItalic_clicked(self, checked): #添加新功能
# print(checked)
font = self.ui.TextEdit.font()
# print(font)
font.setItalic(checked)
# print(12)
self.ui.TextEdit.setFont(font)
# print(13)
def do_set_TextColor(self):
#添加自定义槽函数
plet = self.ui.TextEdit.palette() #获取调色板palette（）
if (self.ui.radioBlack.isChecked()): #isChecked是否选取
plet.setColor(QPalette.Text, Qt.black) #black
elif (self.ui.radioRed.isChecked()):
plet.setColor(QPalette.Text, Qt.red)
elif (self.ui.radioBlue.isChecked()):
plet.setColor(QPalette.Text, Qt.blue)
self.ui.TextEdit.setPalette(plet) #设置颜色
class QmyDialog(QDialog):
def __init__(self, parent=None):
super().__init__(parent) #调用父类构造函数，创建窗体
self.ui = Ui_Dialog() #创建UI对象
self.ui.setupUi(self) #构造UI界面
self.ui.radioBlack.clicked.connect(self.do_setTextColor)
self.ui.radioRed.clicked.connect(self.do_setTextColor)
self.ui.radioBlue.clicked.connect(self.do_setTextColor)
## 由connectSlotsByName() 自动与组件的信号连接的槽函数
## @pyqtSlot()
def on_btnClear_clicked(self): #"清空"按钮
self.ui.textEdit.clear()
## @pyqtSlot()
def on_chkBoxBold_toggled(self, checked): #"Bold"复选框
font = self.ui.textEdit.font()
font.setBold(checked) #函数参数checked表示了勾选状态
self.ui.textEdit.setFont(font)
## @pyqtSlot()
def on_chkBoxUnder_clicked(self): #"Underline"复选框
checked = self.ui.chkBoxUnder.isChecked() #读取勾选状态
font = self.ui.textEdit.font()
font.setUnderline(checked)
self.ui.textEdit.setFont(font)
@pyqtSlot(bool) #修饰符指定参数类型，用于overload型的信号
def on_chkBoxItalic_clicked(self, checked): #"Italic"复选框
font = self.ui.textEdit.font()
font.setItalic(checked)
self.ui.textEdit.setFont(font)
## 自定义槽函数
def do_setTextColor(self):
plet = self.ui.textEdit.palette() #获取 palette
if (self.ui.radioBlack.isChecked()):
plet.setColor(QPalette.Text, Qt.black) #black
elif (self.ui.radioRed.isChecked()):
plet.setColor(QPalette.Text, Qt.red) #red
elif (self.ui.radioBlue.isChecked()):
plet.setColor(QPalette.Text, Qt.blue) #blue
self.ui.textEdit.setPalette(plet) #设置palette
class QnewDialog(QDialog):
def __init__(self, parent=None):
super().__init__(parent)
self.ui = Ui_Dialog()
self.ui.setupUi(self)
self.ui.radioButton_black.clicked.connect(self.do_setTextColor)
self.ui.radioButton_red.clicked.connect(self.do_setTextColor)
self.ui.radioButton_blue.clicked.connect(self.do_setTextColor)
def on_pushButton_clear_clicked(self):
self.ui.textEdit.clear()
def on_checkBox_bold_toggled(self, checked):
font = self.ui.textEdit.font()
font.setBold(checked) #表示選取狀態
self.ui.textEdit.setFont(font)
def on_checkBox_underline_clicked(self):
checked = self.ui.checkBox_underline.isChecked()
font = self.ui.textEdit.font()
font.setUnderline(checked)
self.ui.textEdit.setFont(font)
@pyqtSlot(bool)
def on_checkBox_italic_clicked(self, checked):
##def on_checkBox_italic_clicked(self):
##checked=self.ui.checkBox_italic.isChecked()
font = self.ui.textEdit.font()
font.setItalic(checked)
self.ui.textEdit.setFont(font)
def do_setTextColor(self):
plet = self.ui.textEdit.palette()
if (self.ui.radioButton_black.isChecked()):
plet.setColor(QPalette.Text, Qt.black)
elif (self.ui.radioButton_red.isChecked()):
plet.setColor(QPalette.Text, Qt.red)
elif (self.ui.radioButton_blue.isChecked()):
plet.setColor(QPalette.Text, Qt.blue)
self.ui.textEdit.setPalette(plet)
def GetOutCome(self):
print(self.ui.textEdit.toPlainText())
class QmyDialog(QDialog):
def __init__(self, parrent=None):
super().__init__(parrent)
self.ui = Ui_Dialog()
self.ui.setupUi(self)
self.ui.radioBlack.clicked.connect(self.do_setTextColor)
self.ui.radioRed.clicked.connect(self.do_setTextColor)
self.ui.radioBlue.clicked.connect(self.do_setTextColor)
def on_btnClear_clicked(self):
self.ui.textEdit.clear()
def on_chkBoxBold_toggled(self, checked):
font = self.ui.textEdit.font()
font.setBold(checked)
self.ui.textEdit.setFont(font)
def on_chkBoxItalic_toggled(self, checked):
font = self.ui.textEdit.font()
font.setItalic(checked)
self.ui.textEdit.setFont(font)
def on_chkBoxUnder_toggled(self, checked):
font = self.ui.textEdit.font()
font.setUnderline(checked)
self.ui.textEdit.setFont(font)
def do_setTextColor(self):
plet = self.ui.textEdit.palette() # 获取调色板palette
if (self.ui.radioBlack.isChecked()):
plet.setColor(QPalette.Text, Qt.black)
elif (self.ui.radioRed.isChecked()):
plet.setColor(QPalette.Text, Qt.red)
elif (self.ui.radioBlue.isChecked()):
plet.setColor(QPalette.Text, Qt.blue)
self.ui.textEdit.setPalette(plet)
def __init__(self, parent=None):
super().__init__(parent) #调用父类构造函数，创建窗体
self.ui = Ui_Dialog() #创建UI对象
self.ui.setupUi(self) #构造UI界面
pass
class QmyDialog(QDialog):
def __init__(self, parent=None):
super().__init__(parent) #调用父类构造函数，创建窗体
self.ui=Ui_Dialog() #创建UI对象
self.ui.setupUi(self) #构造UI界面
## ==============自定义功能函数============
## ==========由connectSlotsByName() 自动连接的槽函数==================
@pyqtSlot() ##"打开一个文件"
def on_btnOpen_clicked(self):
pass
@pyqtSlot() ##"打开多个文件"
def on_btnOpenMulti_clicked(self):
pass
@pyqtSlot() ##“选择已有目录 ”
def on_btnSelDir_clicked(self):
pass
@pyqtSlot() ##“保存文件”
def on_btnSave_clicked(self):
pass
@pyqtSlot() ##"选择颜色"
def on_btnColor_clicked(self):
pass
@pyqtSlot() ##"选择字体"
def on_btnFont_clicked(self):
pass
@pyqtSlot() ##"进度对话框"
def on_btnProgress_clicked(self):
pass
@pyqtSlot() ##“输入字符串”
def on_btnInputString_clicked(self):
pass
@pyqtSlot() ##“输入整数”
def on_btnInputInt_clicked(self):
pass
@pyqtSlot() ##“输入浮点数”
def on_btnInputFloat_clicked(self):
pass
@pyqtSlot() ##"条目选择输入"
def on_btnInputItem_clicked(self):
pass
@pyqtSlot() ##"question"
def on_btnMsgQuestion_clicked(self):
pass
@pyqtSlot() ##"information"
def on_btnMsgInformation_clicked(self):
pass
@pyqtSlot() ##"warning"
def on_btnMsgWarning_clicked(self):
pass
@pyqtSlot() ##"critical"
def on_btnMsgCritical_clicked(self):
pass
@pyqtSlot() ##"about"
def on_btnMsgAbout_clicked(self):
pass
@pyqtSlot() ##"About Qt"
def on_btnMsgAboutQt_clicked(self):
pass
## =============自定义槽函数===============================
def do_progress_canceled(self): ##取消进度对话框
pass
class QmyDialog(QDialog):
def __init__(self, parent=None):
super().__init__(parent) #调用父类构造函数，创建窗体
self.ui = Ui_Dialog() #创建UI对象
self.ui.setupUi(self) #构造UI界面
## ==============自定义功能函数============
## ==========由connectSlotsByName() 自动连接的槽函数==================
@pyqtSlot() ##"打开一个文件"
def on_btnOpen_clicked(self):
curPath = QDir.currentPath() #获取系统当前目录
dlgTitle = "选择一个文件" #对话框标题
filt = "所有文件(*.*);;文本文件(*.txt);;图片文件(*.jpg *.gif *.png)" #文件过滤器
filename, filtUsed = QFileDialog.getOpenFileName(
self, dlgTitle, curPath, filt)
self.ui.plainTextEdit.appendPlainText(filename)
self.ui.plainTextEdit.appendPlainText("\n" + filtUsed)
@pyqtSlot() ##"打开多个文件"
def on_btnOpenMulti_clicked(self):
curPath = QDir.currentPath() #获取系统当前目录
dlgTitle = "选择一个文件" #对话框标题
filt = "所有文件(*.*);;文本文件(*.txt);;图片文件(*.jpg *.gif *.png)" #文件过滤器
fileList, filtUsed = QFileDialog.getOpenFileNames(
self, dlgTitle, curPath, filt)
for i in range(len(fileList)):
self.ui.plainTextEdit.appendPlainText(fileList[i])
self.ui.plainTextEdit.appendPlainText("\n" + filtUsed)
@pyqtSlot() ##“选择已有目录 ”
def on_btnSelDir_clicked(self):
curPath = QDir.currentPath() #获取系统当前目录
dlgTitle = "选择一个目录" #对话框标题
selectedDir = QFileDialog.getExistingDirectory(
self, dlgTitle, curPath, QFileDialog.ShowDirsOnly)
self.ui.plainTextEdit.appendPlainText("\n" + selectedDir)
@pyqtSlot() ##“保存文件”
def on_btnSave_clicked(self):
curPath = QDir.currentPath() #获取系统当前目录
dlgTitle = "保存文件" #对话框标题
filt = "所有文件(*.*);;文本文件(*.txt);;图片文件(*.jpg *.gif *.png)" #文件过滤器
filename, filtUsed = QFileDialog.getSaveFileName(
self, dlgTitle, curPath, filt)
self.ui.plainTextEdit.appendPlainText(filename)
self.ui.plainTextEdit.appendPlainText("\n" + filtUsed)
@pyqtSlot() ##"选择颜色"
def on_btnColor_clicked(self):
pal = self.ui.plainTextEdit.palette() #获取现有 palette
iniColor = pal.color(QPalette.Text) #现有的文字颜色
color = QColorDialog.getColor(iniColor, self, "选择颜色")
if color.isValid(): #选择有效
pal.setColor(QPalette.Text, color) #palette 设置选择的颜色
self.ui.plainTextEdit.setPalette(pal) #设置 palette
@pyqtSlot() ##"选择字体"
def on_btnFont_clicked(self):
iniFont = self.ui.plainTextEdit.font() #获取文本框的字体
font, OK = QFontDialog.getFont(iniFont) #选择字体, 注意与C++版本不同
if (OK): #选择有效
self.ui.plainTextEdit.setFont(font)
@pyqtSlot() ##"进度对话框"
def on_btnProgress_clicked(self):
labText = "正在复制文件..." #文字信息
btnText = "取消" #"取消"按钮的标题
minV = 0
maxV = 200
dlgProgress = QProgressDialog(labText, btnText, minV, maxV, self)
dlgProgress.canceled.connect(self.do_progress_canceled) #canceled信号
dlgProgress.setWindowTitle("复制文件")
dlgProgress.setWindowModality(Qt.WindowModal) #模态对话框
dlgProgress.setAutoReset(
True) #calls reset() as soon as value() equals maximum()
dlgProgress.setAutoClose(
True) #whether the dialog gets hidden by reset()
msCounter = QTime() #计时器
for i in range(minV, maxV + 1):
dlgProgress.setValue(i)
dlgProgress.setLabelText("正在复制文件,第 %d 个" % i)
msCounter.start() #计时器重新开始
while (msCounter.elapsed() < 30): #延时 30ms
None
if (dlgProgress.wasCanceled()): #中途取消
break
@pyqtSlot() ##“输入字符串”
def on_btnInputString_clicked(self):
dlgTitle = "输入文字对话框"
txtLabel = "请输入文件名"
defaultInput = "新建文件.txt"
echoMode = QLineEdit.Normal #正常文字输入
## echoMode=QLineEdit.Password #密码输入
text, OK = QInputDialog.getText(self, dlgTitle, txtLabel, echoMode,
defaultInput)
if (OK):
self.ui.plainTextEdit.appendPlainText(text)
@pyqtSlot() ##“输入整数”
def on_btnInputInt_clicked(self):
dlgTitle = "输入整数对话框"
txtLabel = "设置字体大小"
defaultValue = self.ui.plainTextEdit.font().pointSize() #现有字体大小
minValue = 6
maxValue = 50
stepValue = 1
inputValue, OK = QInputDialog.getInt(self, dlgTitle, txtLabel,
defaultValue, minValue, maxValue,
stepValue)
if OK:
font = self.ui.plainTextEdit.font()
font.setPointSize(inputValue)
self.ui.plainTextEdit.setFont(font)
@pyqtSlot() ##“输入浮点数”
def on_btnInputFloat_clicked(self):
dlgTitle = "输入浮点数对话框"
txtLabel = "输入一个浮点数"
defaultValue = 3.65
minValue = 0
maxValue = 10000
decimals = 2
inputValue, OK = QInputDialog.getDouble(self, dlgTitle, txtLabel,
defaultValue, minValue,
maxValue, decimals)
if OK:
text = "输入了一个浮点数：%.2f" % inputValue
self.ui.plainTextEdit.appendPlainText(text)
@pyqtSlot() ##"条目选择输入"
def on_btnInputItem_clicked(self):
dlgTitle = "条目选择对话框"
txtLabel = "请选择级别"
curIndex = 0
editable = True
items = ["优秀", "良好", "合格", "不合格"]
text, OK = QInputDialog.getItem(self, dlgTitle, txtLabel, items,
curIndex, editable)
if OK:
self.ui.plainTextEdit.appendPlainText(text)
@pyqtSlot() ##"question"
def on_btnMsgQuestion_clicked(self):
dlgTitle = "Question消息框"
strInfo = "文件已被修改，是否保存修改？"
defaultBtn = QMessageBox.NoButton #缺省按钮
result = QMessageBox.question(
self, dlgTitle, strInfo,
QMessageBox.Yes | QMessageBox.No | QMessageBox.Cancel, defaultBtn)
if (result == QMessageBox.Yes):
self.ui.plainTextEdit.appendPlainText("Question消息框: Yes 被选择")
elif (result == QMessageBox.No):
self.ui.plainTextEdit.appendPlainText("Question消息框: No 被选择")
elif (result == QMessageBox.Cancel):
self.ui.plainTextEdit.appendPlainText("Question消息框: Cancel 被选择")
else:
self.ui.plainTextEdit.appendPlainText("Question消息框: 无选择")
@pyqtSlot() ##"information"
def on_btnMsgInformation_clicked(self):
dlgTitle = "information消息框"
strInfo = "文件已经被正确打开."
QMessageBox.information(self, dlgTitle, strInfo)
@pyqtSlot() ##"warning"
def on_btnMsgWarning_clicked(self):
dlgTitle = "warning消息框"
strInfo = "文件内容已经被修改."
QMessageBox.warning(self, dlgTitle, strInfo)
@pyqtSlot() ##"critical"
def on_btnMsgCritical_clicked(self):
dlgTitle = "critical消息框"
strInfo = "出现严重错误，程序将关闭."
QMessageBox.critical(self, dlgTitle, strInfo)
@pyqtSlot() ##"about"
def on_btnMsgAbout_clicked(self):
dlgTitle = "about消息框"
strInfo = "Python Qt GUI与数据可视化编程\n保留所有版权"
QMessageBox.about(self, dlgTitle, strInfo)
@pyqtSlot() ##"About Qt"
def on_btnMsgAboutQt_clicked(self):
dlgTitle = "aboutQt消息框"
QMessageBox.aboutQt(self, dlgTitle)
## =============自定义槽函数===============================
def do_progress_canceled(self): ##取消进度对话框
self.ui.plainTextEdit.appendPlainText("**进度对话框被取消了**")
class QmyDialog(QDialog):
def __init__(self, parent=None):
super().__init__(parent) #调用父类构造函数,创建窗体
self.ui = Ui_Dialog() #创建Ui对象
self.ui.setupUi(self) #构造UI