Draft screen / font / dpi info script

bar_select
Tyler Goodlet 2020-10-25 18:20:38 -04:00
parent bed6a631c0
commit 7a268ea88e
1 changed files with 87 additions and 0 deletions

View File

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from pyqtgraph import QtGui
from PyQt5 import QtCore
from PyQt5.QtCore import (
Qt, QCoreApplication
)
# Proper high DPI scaling is available in Qt >= 5.6.0. This attibute
# must be set before creating the application
if hasattr(Qt, 'AA_EnableHighDpiScaling'):
QCoreApplication.setAttribute(Qt.AA_EnableHighDpiScaling, True)
if hasattr(Qt, 'AA_UseHighDpiPixmaps'):
QCoreApplication.setAttribute(Qt.AA_UseHighDpiPixmaps, True)
app = QtGui.QApplication([])
window = QtGui.QMainWindow()
main_widget = QtGui.QWidget()
window.setCentralWidget(main_widget)
window.show()
pxr = main_widget.devicePixelRatioF()
# screen_num = app.desktop().screenNumber()
# screen = app.screens()[screen_num]
screen = app.screenAt(main_widget.geometry().center())
name = screen.name()
size = screen.size()
geo = screen.availableGeometry()
phydpi = screen.physicalDotsPerInch()
logdpi = screen.logicalDotsPerInch()
print(
# f'screen number: {screen_num}\n',
f'screen name: {name}\n'
f'screen size: {size}\n'
f'screen geometry: {geo}\n\n'
f'devicePixelRationF(): {pxr}\n'
f'physical dpi: {phydpi}\n'
f'logical dpi: {logdpi}\n'
)
print('-'*50)
screen = app.primaryScreen()
name = screen.name()
size = screen.size()
geo = screen.availableGeometry()
phydpi = screen.physicalDotsPerInch()
logdpi = screen.logicalDotsPerInch()
print(
# f'screen number: {screen_num}\n',
f'screen name: {name}\n'
f'screen size: {size}\n'
f'screen geometry: {geo}\n\n'
f'devicePixelRationF(): {pxr}\n'
f'physical dpi: {phydpi}\n'
f'logical dpi: {logdpi}\n'
)
# app-wide font
font = QtGui.QFont("Hack")
# use pixel size to be cross-resolution compatible?
font.setPixelSize(6)
fm = QtGui.QFontMetrics(font)
fontdpi = fm.fontDpi()
font_h = fm.height()
string = '10000'
str_br = fm.boundingRect(string)
str_w = str_br.width()
print(
# f'screen number: {screen_num}\n',
f'font dpi: {fontdpi}\n'
f'font height: {font_h}\n'
f'string bounding rect: {str_br}\n'
f'string width : {str_w}\n'
)