src/eric7/UI/Previewers/PreviewerQSS.py

# -*- coding: utf-8 -*-

# Copyright (c) 2014 - 2022 Detlev Offenbach <detlev@die-offenbachs.de>
#

"""
Module implementing a previewer widget for Qt style sheet files.
"""

import os

from PyQt6.QtCore import pyqtSlot, Qt
from PyQt6.QtWidgets import QWidget, QMenu, QLabel, QHeaderView, QListWidgetItem

from EricWidgets.EricPathPicker import EricPathPickerModes
from EricWidgets.EricApplication import ericApp

from .Ui_PreviewerQSS import Ui_PreviewerQSS

import Preferences
import Utilities
import UI.PixmapCache

from eric7config import getConfig


class PreviewerQSS(QWidget, Ui_PreviewerQSS):
    """
    Class implementing a previewer widget for Qt style sheet files.
    """

    def __init__(self, parent=None):
        """
        Constructor

        @param parent reference to the parent widget (QWidget)
        """
        super().__init__(parent)
        self.setupUi(self)

        styleIconsPath = ericApp().getStyleIconsPath()
        self.styleIconsPathPicker.setMode(EricPathPickerModes.DIRECTORY_SHOW_FILES_MODE)
        self.styleIconsPathPicker.setDefaultDirectory(styleIconsPath)

        self.__lastEditor = None

        # menu for the tool buttons
        self.__toolButtonMenu_1 = QMenu(self)
        self.__toolButtonMenu_1.addAction(self.tr("Action 1.1"))
        self.__toolButtonMenu_1.addSeparator()
        self.__toolButtonMenu_1.addAction(self.tr("Action 2.1"))
        self.toolButton_1.setMenu(self.__toolButtonMenu_1)

        self.__toolButtonMenu_2 = QMenu(self)
        self.__toolButtonMenu_2.addAction(self.tr("Action 1.2"))
        self.__toolButtonMenu_2.addSeparator()
        self.__toolButtonMenu_2.addAction(self.tr("Action 2.2"))
        self.toolButton_2.setMenu(self.__toolButtonMenu_2)

        self.__toolButtonMenu_3 = QMenu(self)
        self.__toolButtonMenu_3.addAction(self.tr("Action 1.3"))
        self.__toolButtonMenu_3.addSeparator()
        self.__toolButtonMenu_3.addAction(self.tr("Action 2.3"))
        self.toolButton_3.setMenu(self.__toolButtonMenu_3)

        # a MDI window
        self.__mdi = self.mdiArea.addSubWindow(QLabel(self.tr("MDI")))
        self.__mdi.resize(160, 80)

        # tree and table widgets
        self.tree.header().setSectionResizeMode(QHeaderView.ResizeMode.ResizeToContents)
        self.table.horizontalHeader().setSectionResizeMode(
            QHeaderView.ResizeMode.ResizeToContents
        )
        self.tree.topLevelItem(0).setExpanded(True)

        # icon list widget
        for iconName, labelText in (
            ("filePython", self.tr("Python")),
            ("fileRuby", self.tr("Ruby")),
            ("fileJavascript", self.tr("JavaScript")),
        ):
            self.iconsListWidget.addItem(
                QListWidgetItem(UI.PixmapCache.getIcon(iconName), labelText)
            )

    @pyqtSlot(str)
    def on_styleIconsPathPicker_textChanged(self, txt):
        """
        Private slot handling a change of the style icons path.

        @param txt name of the style icons directory
        @type str
        """
        self.processEditor(self.__lastEditor)

    def processEditor(self, editor=None):
        """
        Public slot to process an editor's text.

        @param editor editor to be processed (Editor)
        """
        self.__lastEditor = editor

        if editor is not None:
            fn = editor.getFileName()

            if fn:
                extension = os.path.normcase(os.path.splitext(fn)[1][1:])
            else:
                extension = ""
            if extension in Preferences.getEditor("PreviewQssFileNameExtensions"):
                styleSheet = editor.text()
                if styleSheet:
                    styleIconsPath = self.styleIconsPathPicker.text()
                    if not styleIconsPath:
                        styleIconsPath = Preferences.getUI("StyleIconsPath")
                        if not styleIconsPath:
                            # default ist the 'StyleIcons' subdirectory of the
                            # icons directory
                            styleIconsPath = os.path.join(
                                getConfig("ericIconDir"), "StyleIcons"
                            )

                    styleIconsPath = Utilities.fromNativeSeparators(styleIconsPath)
                    styleSheet = styleSheet.replace("${path}", styleIconsPath)
                    self.scrollAreaWidgetContents.setStyleSheet(styleSheet)
                else:
                    self.scrollAreaWidgetContents.setStyleSheet("")
                self.toolButton_1.menu().setStyleSheet(
                    self.scrollAreaWidgetContents.styleSheet()
                )
                self.toolButton_2.menu().setStyleSheet(
                    self.scrollAreaWidgetContents.styleSheet()
                )
                self.toolButton_3.menu().setStyleSheet(
                    self.scrollAreaWidgetContents.styleSheet()
                )

    @pyqtSlot(int)
    def on_checkBox_stateChanged(self, state):
        """
        Private slot to synchronize the checkbox state.

        @param state state of the enabled check box
        @type int
        """
        self.disabledCheckBox.setCheckState(Qt.CheckState(state))