#!/usr/bin/python3
# -*- coding: utf-8 -*-
'''Pychemqt, Chemical Engineering Process simulator
Copyright (C) 2009-2017, Juan José Gómez Romera <jjgomera@gmail.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.'''
###############################################################################
# Module to define TextEditor widget, define common text functionality:
# fontcolor, fontstyle, fontweigh, alignment, bold, italic...
# This widget is useful to show/edit note properties of stream, equipment...
###############################################################################
import os
from PyQt5 import QtCore, QtGui, QtWidgets
from UI.widgets import createAction
class TextEditor(QtWidgets.QWidget):
"""Text editor widget"""
textChanged = QtCore.pyqtSignal(str, str)
def __init__(self, texto="", parent=None):
"""Constructor, opcional parameter texto to set initial value"""
super(TextEditor, self).__init__(parent)
self.texto = texto
self.setWindowTitle(
QtWidgets.QApplication.translate("pychemqt", "Notes"))
gridLayout = QtWidgets.QVBoxLayout(self)
toolbar = QtWidgets.QToolBar()
toolbar.setIconSize(QtCore.QSize(16, 16))
gridLayout.addWidget(toolbar)
self.fontComboBox = QtWidgets.QFontComboBox()
self.fontComboBox.setToolTip(
QtWidgets.QApplication.translate("pychemqt", "Font name"))
self.fontComboBox.activated[str].connect(self.font)
toolbar.addWidget(self.fontComboBox)
self.FontColor = QtWidgets.QPushButton()
self.FontColor.setFixedSize(22, 22)
self.FontColor.setPalette(QtGui.QPalette(QtGui.QColor("black")))
self.FontColor.setToolTip(
QtWidgets.QApplication.translate("pychemqt", "Font color"))
self.FontColor.clicked.connect(self.colordialog)
toolbar.addWidget(self.FontColor)
self.FontSize = QtWidgets.QComboBox()
for i in QtGui.QFontDatabase.standardSizes():
self.FontSize.addItem(str(i))
self.FontSize.setToolTip(
QtWidgets.QApplication.translate("pychemqt", "Font size"))
self.FontSize.activated[str].connect(self.PointSize)
toolbar.addWidget(self.FontSize)
self.actionNegrita = createAction(
icon=os.path.join("button", "format-text-bold.png"),
text=QtWidgets.QApplication.translate("pychemqt", "Bold"),
slot=self.Negrita, checkable=True)
toolbar.addAction(self.actionNegrita)
self.actionCursiva = createAction(
icon=os.path.join("button", "format-text-italic.png"),
text=QtWidgets.QApplication.translate("pychemqt", "Italic"),
slot=self.Cursiva, checkable=True)
toolbar.addAction(self.actionCursiva)
self.actionSubrayado = createAction(
icon=os.path.join("button", "format-text-underline.png"),
text=QtWidgets.QApplication.translate("pychemqt", "Underline"),
slot=self.Subrayado, checkable=True)
toolbar.addAction(self.actionSubrayado)
self.actionTachado = createAction(
icon=os.path.join("button", "format-text-strikethrough.png"),
text=QtWidgets.QApplication.translate("pychemqt", "Strike through"),
slot=self.Tachado, checkable=True)
toolbar.addAction(self.actionTachado)
self.actionSuperScript = createAction(
icon=os.path.join("button", "font-superscript.png"),
text=QtWidgets.QApplication.translate("pychemqt", "Superscript"),
slot=self.Superindice, checkable=True)
toolbar.addAction(self.actionSuperScript)
self.actionSubScript = createAction(
icon=os.path.join("button", "font-subscript.png"),
text=QtWidgets.QApplication.translate("pychemqt", "Subscript"),
slot=self.Subindice, checkable=True)
toolbar.addAction(self.actionSubScript)
toolbar.addSeparator()
self.actionAlinearIzquierda = createAction(
icon=os.path.join("button", "format-justify-left.png"),
text=QtWidgets.QApplication.translate("pychemqt", "Align left"),
slot=self.izquierda, checkable=True)
toolbar.addAction(self.actionAlinearIzquierda)
self.actionCentrar = createAction(
icon=os.path.join("button", "format-justify-center.png"),
text=QtWidgets.QApplication.translate("pychemqt", "Center"),
slot=self.centrar, checkable=True)
toolbar.addAction(self.actionCentrar)
self.actionJustificar = createAction(
icon=os.path.join("button", "format-justify-fill.png"),
text=QtWidgets.QApplication.translate("pychemqt", "Justify"),
slot=self.justificar, checkable=True)
toolbar.addAction(self.actionJustificar)
self.actionAlinearDerecha = createAction(
icon=os.path.join("button", "format-justify-right.png"),
text=QtWidgets.QApplication.translate("pychemqt", "Align right"),
slot=self.derecha, checkable=True)
toolbar.addAction(self.actionAlinearDerecha)
self.notas = QtWidgets.QTextEdit(texto)
self.notas.setMinimumWidth(450)
self.notas.textChanged.connect(self.setText)
self.notas.cursorPositionChanged.connect(self.updateUI)
gridLayout.addWidget(self.notas)
group = QtWidgets.QActionGroup(self)
group.addAction(self.actionAlinearIzquierda)
group.addAction(self.actionCentrar)
group.addAction(self.actionJustificar)
group.addAction(self.actionAlinearDerecha)
self.notas.setFocus()
self.PointSize("10")
self.FontSize.setCurrentIndex(self.FontSize.findText("10"))
self.font(self.fontComboBox.currentFont().family())
def setText(self, texto=None):
"""Set text value"""
if texto:
self.notas.setHtml(texto)
else:
texto = self.notas.toHtml()
self.textChanged.emit(texto, self.notas.toPlainText())
self.texto = texto
def MergeFormat(self, format):
"""Merge format to current text"""
cursor = self.notas.textCursor()
if not cursor.hasSelection():
cursor.select(QtGui.QTextCursor.Document)
cursor.mergeCharFormat(format)
self.notas.mergeCurrentCharFormat(format)
def font(self, family):
format = QtGui.QTextCharFormat()
format.setFontFamily(family)
self.MergeFormat(format)
def izquierda(self):
self.notas.setAlignment(QtCore.Qt.AlignLeft | QtCore.Qt.AlignAbsolute)
def centrar(self):
self.notas.setAlignment(QtCore.Qt.AlignHCenter)
def derecha(self):
self.notas.setAlignment(QtCore.Qt.AlignRight | QtCore.Qt.AlignAbsolute)
def justificar(self):
self.notas.setAlignment(QtCore.Qt.AlignJustify)
def PointSize(self, size):
puntos = int(size)
if puntos > 0:
format = QtGui.QTextCharFormat()
format.setFontPointSize(puntos)
self.MergeFormat(format)
def Negrita(self):
format = QtGui.QTextCharFormat()
if self.actionNegrita.isChecked():
format.setFontWeight(QtGui.QFont.Bold)
else:
format.setFontWeight(QtGui.QFont.Normal)
self.MergeFormat(format)
def Cursiva(self):
format = QtGui.QTextCharFormat()
format.setFontItalic(self.actionCursiva.isChecked())
self.MergeFormat(format)
def Subrayado(self):
format = QtGui.QTextCharFormat()
format.setFontUnderline(self.actionSubrayado.isChecked())
self.MergeFormat(format)
def Tachado(self):
format = QtGui.QTextCharFormat()
format.setFontStrikeOut(self.actionTachado.isChecked())
self.MergeFormat(format)
def Superindice(self):
if self.actionSubScript.isChecked():
self.actionSubScript.blockSignals(True)
self.actionSubScript.setChecked(False)
self.actionSubScript.blockSignals(False)
format = QtGui.QTextCharFormat()
if self.actionSuperScript.isChecked():
format.setVerticalAlignment(QtGui.QTextCharFormat.AlignSuperScript)
else:
format.setVerticalAlignment(QtGui.QTextCharFormat.AlignNormal)
self.MergeFormat(format)
def Subindice(self):
if self.actionSuperScript.isChecked():
self.actionSuperScript.blockSignals(True)
self.actionSuperScript.setChecked(False)
self.actionSuperScript.blockSignals(False)
format = QtGui.QTextCharFormat()
if self.actionSubScript.isChecked():
format.setVerticalAlignment(QtGui.QTextCharFormat.AlignSubScript)
else:
format.setVerticalAlignment(QtGui.QTextCharFormat.AlignNormal)
self.MergeFormat(format)
def updateUI(self):
"""Update button status when cursor move"""
self.fontComboBox.setCurrentIndex(self.fontComboBox.findText(
self.notas.fontFamily()))
self.FontColor.setPalette(QtGui.QPalette(self.notas.textColor()))
self.FontSize.setCurrentIndex(self.FontSize.findText(
str(int(self.notas.fontPointSize()))))
self.actionNegrita.setChecked(
self.notas.fontWeight() == QtGui.QFont.Bold)
self.actionCursiva.setChecked(self.notas.fontItalic())
self.actionSubrayado.setChecked(self.notas.fontUnderline())
format = self.notas.currentCharFormat()
self.actionTachado.setChecked(format.fontStrikeOut())
self.actionSuperScript.setChecked(False)
self.actionSubScript.setChecked(False)
if format.verticalAlignment() == QtGui.QTextCharFormat.AlignSuperScript:
self.actionSuperScript.setChecked(True)
elif format.verticalAlignment() == QtGui.QTextCharFormat.AlignSubScript:
self.actionSubScript.setChecked(True)
self.actionAlinearIzquierda.setChecked(
self.notas.alignment() == QtCore.Qt.AlignLeft)
self.actionCentrar.setChecked(
self.notas.alignment() == QtCore.Qt.AlignHCenter)
self.actionJustificar.setChecked(
self.notas.alignment() == QtCore.Qt.AlignJustify)
self.actionAlinearDerecha.setChecked(
self.notas.alignment() == QtCore.Qt.AlignRight)
def colordialog(self):
"""Show dialog to choose font color"""
dialog = QtWidgets.QColorDialog(self.notas.textColor(), self)
if dialog.exec_():
self.FontColor.setPalette(QtGui.QPalette(dialog.currentColor()))
self.notas.setTextColor(dialog.currentColor())
format = QtGui.QTextCharFormat()
format.setForeground(dialog.currentColor())
self.MergeFormat(format)
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
Form = TextEditor("Ejemplo")
Form.show()
sys.exit(app.exec_())
