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# Copyright (c) 2021 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
import os
from typing import Optional, Dict, List, Tuple
from PyQt5.QtCore import pyqtProperty, pyqtSlot
from UM.Logger import Logger
from UM.Resources import Resources
from cura.UI.WelcomePagesModel import WelcomePagesModel
class WhatsNewPagesModel(WelcomePagesModel):
"""
This Qt ListModel is more or less the same the WelcomePagesModel, except that this model is only for showing the
"what's new" page. This is also used in the "Help" menu to show the changes log.
"""
image_formats = [".png", ".jpg", ".jpeg", ".gif", ".svg"]
text_formats = [".txt", ".htm", ".html"]
image_key = "image"
text_key = "text"
@staticmethod
def _collectOrdinalFiles(resource_type: int, include: List[str]) -> Tuple[Dict[int, str], int]:
result = {} # type: Dict[int, str]
highest = -1
try:
folder_path = Resources.getPath(resource_type, "whats_new")
for _, _, files in os.walk(folder_path):
for filename in files:
basename = os.path.basename(filename)
base, ext = os.path.splitext(basename)
if ext.lower() not in include or not base.isdigit():
continue
page_no = int(base)
highest = max(highest, page_no)
result[page_no] = os.path.join(folder_path, filename)
except FileNotFoundError:
Logger.logException("w", "Could not find 'whats_new' folder for resource-type {0}".format(resource_type))
return result, highest
@staticmethod
def _loadText(filename: str) -> str:
result = ""
try:
with open(filename, "r", encoding="utf-8") as file:
result = file.read()
except OSError:
Logger.logException("w", "Could not open {0}".format(filename))
return result
def initialize(self) -> None:
self._pages = []
self._pages.append({"id": "whats_new",
"page_url": self._getBuiltinWelcomePagePath("WhatsNewContent.qml"),
"next_page_button_text": self._catalog.i18nc("@action:button", "Skip"),
"next_page_id": "changelog"
})
self._pages.append({"id": "changelog",
"page_url": self._getBuiltinWelcomePagePath("ChangelogContent.qml"),
"next_page_button_text": self._catalog.i18nc("@action:button", "Close"),
})
self.setItems(self._pages)
images, max_image = WhatsNewPagesModel._collectOrdinalFiles(Resources.Images, WhatsNewPagesModel.image_formats)
texts, max_text = WhatsNewPagesModel._collectOrdinalFiles(Resources.Texts, WhatsNewPagesModel.text_formats)
highest = max(max_image, max_text)
self._subpages = [] #type: List[Dict[str, Optional[str]]]
for n in range(0, highest + 1):
self._subpages.append({
WhatsNewPagesModel.image_key: None if n not in images else images[n],
WhatsNewPagesModel.text_key: None if n not in texts else self._loadText(texts[n])
})
if len(self._subpages) == 0:
self._subpages.append({WhatsNewPagesModel.text_key: "~ There Is Nothing New Under The Sun ~"})
def _getSubpageItem(self, page: int, item: str) -> Optional[str]:
if 0 <= page < self.subpageCount and item in self._subpages[page]:
return self._subpages[page][item]
else:
return None
@pyqtProperty(int, constant = True)
def subpageCount(self) -> int:
return len(self._subpages)
@pyqtSlot(int, result = str)
def getSubpageImageSource(self, page: int) -> str:
result = self._getSubpageItem(page, WhatsNewPagesModel.image_key)
return "file:///" + (result if result else Resources.getPath(Resources.Images, "cura-icon.png"))
@pyqtSlot(int, result = str)
def getSubpageText(self, page: int) -> str:
result = self._getSubpageItem(page, WhatsNewPagesModel.text_key)
return result if result else "* * *"
__all__ = ["WhatsNewPagesModel"]
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