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from PIL import Image, ImageDraw
from PyQt4.QtGui import QPainter, QColor, QFont
from PyQt4 import uic, QtGui, QtCore
from PIL.ImageQt import ImageQt
import os
import io
from . import __base__
class Component(__base__.Component):
'''Title Text'''
modified = QtCore.pyqtSignal(int, dict)
def __init__(self, *args):
super().__init__(*args)
self.titleFont = QFont()
def widget(self, parent):
height = int(parent.settings.value('outputHeight'))
width = int(parent.settings.value('outputWidth'))
self.parent = parent
self.textColor = (255, 255, 255)
self.title = 'Text'
self.alignment = 1
self.fontSize = height / 13.5
self.xPosition = width / 2
self.yPosition = height / 2 * 1.036
page = uic.loadUi(os.path.join(
os.path.dirname(os.path.realpath(__file__)), 'text.ui'))
page.comboBox_textAlign.addItem("Left")
page.comboBox_textAlign.addItem("Middle")
page.comboBox_textAlign.addItem("Right")
page.lineEdit_textColor.setText('%s,%s,%s' % self.textColor)
page.pushButton_textColor.clicked.connect(self.pickColor)
btnStyle = "QPushButton { background-color : %s; outline: none; }" \
% QColor(*self.textColor).name()
page.pushButton_textColor.setStyleSheet(btnStyle)
page.lineEdit_title.setText(self.title)
page.comboBox_textAlign.setCurrentIndex(int(self.alignment))
page.spinBox_fontSize.setValue(int(self.fontSize))
page.spinBox_xTextAlign.setValue(int(self.xPosition))
page.spinBox_yTextAlign.setValue(int(self.yPosition))
page.fontComboBox_titleFont.currentFontChanged.connect(self.update)
page.lineEdit_title.textChanged.connect(self.update)
page.comboBox_textAlign.currentIndexChanged.connect(self.update)
page.spinBox_xTextAlign.valueChanged.connect(self.update)
page.spinBox_yTextAlign.valueChanged.connect(self.update)
page.spinBox_fontSize.valueChanged.connect(self.update)
page.lineEdit_textColor.textChanged.connect(self.update)
self.page = page
return page
def update(self):
self.title = self.page.lineEdit_title.text()
self.alignment = self.page.comboBox_textAlign.currentIndex()
self.titleFont = self.page.fontComboBox_titleFont.currentFont()
self.fontSize = self.page.spinBox_fontSize.value()
self.xPosition = self.page.spinBox_xTextAlign.value()
self.yPosition = self.page.spinBox_yTextAlign.value()
self.textColor = self.RGBFromString(
self.page.lineEdit_textColor.text())
self.parent.drawPreview()
super().update()
def getXY(self):
'''Returns true x, y after considering alignment settings'''
fm = QtGui.QFontMetrics(self.titleFont)
if self.alignment == 0: # Left
x = self.xPosition
if self.alignment == 1: # Middle
offset = fm.width(self.title)/2
x = self.xPosition - offset
if self.alignment == 2: # Right
offset = fm.width(self.title)
x = self.xPosition - offset
return x, self.yPosition
def loadPreset(self, pr, presetName=None):
super().loadPreset(pr, presetName)
self.page.lineEdit_title.setText(pr['title'])
font = QFont()
font.fromString(pr['titleFont'])
self.page.fontComboBox_titleFont.setCurrentFont(font)
self.page.spinBox_fontSize.setValue(pr['fontSize'])
self.page.comboBox_textAlign.setCurrentIndex(pr['alignment'])
self.page.spinBox_xTextAlign.setValue(pr['xPosition'])
self.page.spinBox_yTextAlign.setValue(pr['yPosition'])
self.page.lineEdit_textColor.setText('%s,%s,%s' % pr['textColor'])
btnStyle = "QPushButton { background-color : %s; outline: none; }" \
% QColor(*pr['textColor']).name()
self.page.pushButton_textColor.setStyleSheet(btnStyle)
def savePreset(self):
return {
'preset': self.currentPreset,
'title': self.title,
'titleFont': self.titleFont.toString(),
'alignment': self.alignment,
'fontSize': self.fontSize,
'xPosition': self.xPosition,
'yPosition': self.yPosition,
'textColor': self.textColor
}
def previewRender(self, previewWorker):
width = int(previewWorker.core.settings.value('outputWidth'))
height = int(previewWorker.core.settings.value('outputHeight'))
return self.addText(width, height)
def preFrameRender(self, **kwargs):
super().preFrameRender(**kwargs)
return ['static']
def frameRender(self, moduleNo, arrayNo, frameNo):
width = int(self.worker.core.settings.value('outputWidth'))
height = int(self.worker.core.settings.value('outputHeight'))
return self.addText(width, height)
def addText(self, width, height):
x, y = self.getXY()
im = self.blankFrame(width, height)
image = ImageQt(im)
painter = QPainter(image)
self.titleFont.setPixelSize(self.fontSize)
painter.setFont(self.titleFont)
painter.setPen(QColor(*self.textColor))
painter.drawText(x, y, self.title)
painter.end()
imBytes = image.bits().asstring(image.numBytes())
return Image.frombytes('RGBA', (width, height), imBytes)
def pickColor(self):
RGBstring, btnStyle = super().pickColor()
if not RGBstring:
return
self.page.lineEdit_textColor.setText(RGBstring)
self.page.pushButton_textColor.setStyleSheet(btnStyle)
def commandHelp(self, arg):
print('Enter a string to use as centred white text. '
'Use quotes around the string to escape spaces.')
def command(self, arg):
if not arg.startswith('preset='):
self.title = arg
return True
super().command(arg)
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