Veronica K. B. Olsen
295 lines
11 KiB
Python
295 lines
11 KiB
Python
# -*- coding: utf-8 -*-
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"""novelWriter Icons Class
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novelWriter – Icons Class
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===========================
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This class manages the GUI icons
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File History:
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Created: 2019-11-08 [0.4.0]
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This file is a part of novelWriter
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Copyright 2020, Veronica Berglyd Olsen
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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"""
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import logging
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import configparser
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import nw
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from os import path, listdir
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from PyQt5.QtCore import QSize
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from PyQt5.QtSvg import QSvgWidget
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from PyQt5.QtGui import QIcon, QPixmap
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from PyQt5.QtWidgets import QStyle, qApp
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logger = logging.getLogger(__name__)
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class GuiIcons:
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# Icon keys should either be a .svg or .png file under the gui
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# theme folder, or have a fallback that is either compatible with
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# QIcon.fromTheme, as specified here:
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# https://specifications.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html
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# or, if there is no fallback, the variable should be None.
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ICON_MAP = {
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"cls_none" : (QStyle.SP_DriveHDIcon, "drive-harddisk"),
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"cls_novel" : (QStyle.SP_DriveHDIcon, "drive-harddisk"),
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"cls_plot" : (QStyle.SP_DriveHDIcon, "drive-harddisk"),
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"cls_character" : (QStyle.SP_DriveHDIcon, "drive-harddisk"),
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"cls_world" : (QStyle.SP_DriveHDIcon, "drive-harddisk"),
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"cls_timeline" : (QStyle.SP_DriveHDIcon, "drive-harddisk"),
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"cls_object" : (QStyle.SP_DriveHDIcon, "drive-harddisk"),
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"cls_entity" : (QStyle.SP_DriveHDIcon, "drive-harddisk"),
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"cls_custom" : (QStyle.SP_DriveHDIcon, "drive-harddisk"),
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"cls_trash" : (QStyle.SP_DriveHDIcon, "drive-harddisk"),
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"proj_document" : (QStyle.SP_FileIcon, "x-office-document"),
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"proj_folder" : (QStyle.SP_DirIcon, "folder"),
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"status_lang" : (None, None),
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"status_time" : (None, None),
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## Button Icons
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"folder-open" : (QStyle.SP_DirOpenIcon, "folder-open"),
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"delete" : (QStyle.SP_DialogDiscardButton, "edit-delete"),
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"add" : (None, "list-add"),
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"remove" : (None, "list-remove"),
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"close" : (QStyle.SP_DialogCloseButton, "window-close"),
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"done" : (QStyle.SP_DialogApplyButton, None),
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"search" : (None, "edit-find"),
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"search-replace" : (None, "edit-find-replace"),
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"clear" : (QStyle.SP_LineEditClearButton, "clear_left"),
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"save" : (QStyle.SP_DialogSaveButton, "document-save"),
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"edit" : (None, None),
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## Other Icons
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"warning" : (QStyle.SP_MessageBoxWarning, "dialog-warning"),
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}
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DECO_MAP = {
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"nwicon" : ["icons", "novelWriter.svg"],
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"export" : ["graphics", "export.svg"],
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"merge" : ["graphics", "merge.svg"],
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"settings" : ["graphics", "gear.svg"],
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"split" : ["graphics", "split.svg"],
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}
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def __init__(self, theParent):
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self.mainConf = nw.CONFIG
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self.theParent = theParent
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# Storage
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self.qIcons = {}
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self.themeMap = {}
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self.themeList = []
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self.fbackName = "fallback"
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self.confName = "icons.conf"
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# Icon Theme Path
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self.iconPath = None
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self.confFile = None
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# Icon Theme Meta
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self.themeName = ""
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self.themeDescription = ""
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self.themeAuthor = ""
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self.themeCredit = ""
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self.themeUrl = ""
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self.themeLicense = ""
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self.themeLicenseUrl = ""
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return
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##
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# Actions
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##
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def updateTheme(self):
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logger.debug("Loading icon theme files")
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self.themeMap = {}
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checkPath = path.join(self.mainConf.iconPath, self.mainConf.guiIcons)
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if path.isdir(checkPath):
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logger.debug("Loading icon theme '%s'" % self.mainConf.guiIcons)
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self.iconPath = checkPath
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self.confFile = path.join(checkPath, self.confName)
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else:
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return False
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# Config File
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confParser = configparser.ConfigParser()
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try:
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confParser.read_file(open(self.confFile, mode="r", encoding="utf8"))
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except Exception as e:
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logger.error("Could not load icon theme settings from: %s" % self.confFile)
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return False
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## Main
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cnfSec = "Main"
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if confParser.has_section(cnfSec):
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self.themeName = self._parseLine( confParser, cnfSec, "name", "")
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self.themeDescription = self._parseLine( confParser, cnfSec, "description", "")
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self.themeAuthor = self._parseLine( confParser, cnfSec, "author", "")
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self.themeCredit = self._parseLine( confParser, cnfSec, "credit", "")
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self.themeUrl = self._parseLine( confParser, cnfSec, "url", "")
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self.themeLicense = self._parseLine( confParser, cnfSec, "license", "")
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self.themeLicenseUrl = self._parseLine( confParser, cnfSec, "licenseurl", "")
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## Palette
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cnfSec = "Map"
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if confParser.has_section(cnfSec):
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for iconName, iconFile in confParser.items(cnfSec):
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if iconName not in self.ICON_MAP:
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logger.error("Unknown icon name '%s' in config file" % iconName)
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else:
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iconPath = path.join(self.iconPath, iconFile)
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if path.isfile(iconPath):
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self.themeMap[iconName] = iconPath
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logger.verbose("Icon slot '%s' using file '%s'" % (iconName, iconFile))
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else:
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logger.error("Icon file '%s' not in theme folder" % iconFile)
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logger.info("Loaded icon theme '%s'" % self.mainConf.guiIcons)
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return True
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##
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# Access Functions
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##
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def loadDecoration(self, decoKey, decoSize=None):
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"""Load graphical decoration element based on the decoration
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map. This function always returns a QSwgWidget.
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"""
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if decoKey not in self.DECO_MAP:
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logger.error("Decoration with name '%s' does not exist" % decoKey)
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return QSvgWidget()
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svgPath = path.join(
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self.mainConf.assetPath,
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self.DECO_MAP[decoKey][0],
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self.DECO_MAP[decoKey][1]
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)
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if not path.isfile(svgPath):
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logger.error("Decoration file '%s' not in assets folder" % self.DECO_MAP[decoKey])
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return QSvgWidget()
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svgDeco = QSvgWidget(svgPath)
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if decoSize is not None:
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svgDeco.setFixedSize(QSize(decoSize[0],decoSize[1]))
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return svgDeco
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def getIcon(self, iconKey, iconSize=None):
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"""Return an icon from the icon buffer. If it doesn't exist,
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return, load it, and if it still doesn't exist, return an empty
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icon.
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"""
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if iconKey in self.qIcons:
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return self.qIcons[iconKey]
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else:
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qIcon = self._loadIcon(iconKey)
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self.qIcons[iconKey] = qIcon
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return qIcon
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def getPixmap(self, iconKey, iconSize):
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"""Return an icon from the icon buffer as a QPixmap. If it
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doesn't exist, return an empty QPixmap.
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"""
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qIcon = self.getIcon(iconKey)
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return qIcon.pixmap(iconSize[0], iconSize[1], QIcon.Normal)
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def listThemes(self):
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"""Scan the icons themes folder and list all themes.
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"""
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if self.themeList:
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return self.themeList
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confParser = configparser.ConfigParser()
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for themeDir in listdir(self.mainConf.iconPath):
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themePath = path.join(self.mainConf.iconPath, themeDir)
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if not path.isdir(themePath) or themeDir == self.fbackName:
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continue
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themeConf = path.join(themePath, self.confName)
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logger.verbose("Checking icon theme config for '%s'" % themeDir)
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try:
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confParser.read_file(open(themeConf, mode="r", encoding="utf8"))
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except Exception as e:
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self.theParent.makeAlert(["Could not load theme config file.",str(e)],nwAlert.ERROR)
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continue
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themeName = ""
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if confParser.has_section("Main"):
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if confParser.has_option("Main", "name"):
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themeName = confParser.get("Main", "name")
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logger.verbose("Theme name is '%s'" % themeName)
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if themeName != "":
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self.themeList.append((themeDir, themeName))
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self.themeList = sorted(self.themeList, key=lambda x: x[1])
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self.themeList.insert(0, ("default", "System Icons"))
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return self.themeList
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##
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# Internal Functions
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##
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def _loadIcon(self, iconKey):
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"""Load an icon from the assets or theme folder, with a
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preference for dark/light icons depending on theme type, if such
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an icon exists. Prefer svg files over png files. Always returns
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a QIcon.
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"""
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if iconKey not in self.ICON_MAP:
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logger.error("Requested unknown icon name '%s'" % iconKey)
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return QIcon()
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if iconKey in self.themeMap:
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logger.verbose("Loading: %s" % path.relpath(self.themeMap[iconKey]))
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return QIcon(self.themeMap[iconKey])
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# Next, we try to load the Qt style icons
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if self.ICON_MAP[iconKey][0] is not None:
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logger.verbose("Loading icon '%s' from Qt QStyle.standardIcon" % iconKey)
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return qApp.style().standardIcon(self.ICON_MAP[iconKey][0])
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# If we're still here, try to set from system theme
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if self.ICON_MAP[iconKey][1] is not None:
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logger.verbose("Loading icon '%s' from system theme" % iconKey)
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return QIcon().fromTheme(self.ICON_MAP[iconKey][1])
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# Finally. we check if we have a fallback icon
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if self.mainConf.guiDark:
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fbackIcon = path.join(self.mainConf.iconPath, self.fbackName, "%s-dark.svg" % iconKey)
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else:
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fbackIcon = path.join(self.mainConf.iconPath, self.fbackName, "%s.svg" % iconKey)
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if path.isfile(fbackIcon):
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logger.verbose("Loading icon '%s' from fallback theme" % iconKey)
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return QIcon(fbackIcon)
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# Give up and return an empty icon
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logger.warning("Did not load an icon for '%s'" % iconKey)
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return QIcon()
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def _parseLine(self, confParser, cnfSec, cnfName, cnfDefault):
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if confParser.has_section(cnfSec):
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if confParser.has_option(cnfSec, cnfName):
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return confParser.get(cnfSec, cnfName)
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return cnfDefault
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# END Class GuiIcons
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