Mercurial Repositories > eric / file comparison
comparison: eric7/HelpViewer/HelpViewerImpl_qtb.py
eric7/HelpViewer/HelpViewerImpl_qtb.py
- branch
- eric7
- changeset 8680
- 85503ff2fce9
- parent 8679
- fd172973428e
- child 8681
- 6285e8374d99
equal
deleted
inserted
replaced
| 8679:fd172973428e | 8680:85503ff2fce9 |
|---|---|
| 5 | 5 |
| 6 """ | 6 """ |
| 7 Module implementing the QTextBrowser based help viewer class. | 7 Module implementing the QTextBrowser based help viewer class. |
| 8 """ | 8 """ |
| 9 | 9 |
| 10 from PyQt6.QtCore import Qt, QByteArray, QUrl | |
| 11 from PyQt6.QtGui import QDesktopServices, QImage | |
| 10 from PyQt6.QtWidgets import QTextBrowser | 12 from PyQt6.QtWidgets import QTextBrowser |
| 11 | 13 |
| 12 from .HelpViewerImpl import HelpViewerImpl | 14 from .HelpViewerImpl import HelpViewerImpl |
| 13 | 15 |
| 14 | 16 |
| 15 class HelpViewerImpl_qtb(QTextBrowser, HelpViewerImpl): | 17 class HelpViewerImpl_qtb(HelpViewerImpl, QTextBrowser): |
| 16 """ | 18 """ |
| 17 Class implementing the QTextBrowser based help viewer class. | 19 Class implementing the QTextBrowser based help viewer class. |
| 18 """ | 20 """ |
| 19 def __init__(self, parent): | 21 def __init__(self, engine, parent=None): |
| 20 """ | 22 """ |
| 21 Constructor | 23 Constructor |
| 22 | 24 |
| 25 @param engine reference to the help engine | |
| 26 @type QHelpEngine | |
| 23 @param parent reference to the parent widget | 27 @param parent reference to the parent widget |
| 24 @type QWidget | 28 @type QWidget |
| 25 """ | 29 """ |
| 26 super().__init__(parent) | 30 QTextBrowser.__init__(self, parent=parent) |
| 27 # HelpViewerImpl.__init__(self) | 31 HelpViewerImpl.__init__(self, engine) |
| 32 | |
| 33 self.sourceChanged.connect(self.titleChanged) | |
| 34 | |
| 35 def setUrl(self, url): | |
| 36 """ | |
| 37 Public method to set the URL of the document to be shown. | |
| 38 | |
| 39 @param url source of the document | |
| 40 @type QUrl | |
| 41 """ | |
| 42 self.setSource(url) | |
| 43 | |
| 44 def doSetSource(self, url, type): | |
| 45 """ | |
| 46 Public method to load the data and show it. | |
| 47 | |
| 48 @param url DESCRIPTION | |
| 49 @type TYPE | |
| 50 @param type DESCRIPTION | |
| 51 @type TYPE | |
| 52 """ | |
| 53 data = self.getData(url) | |
| 54 if data is None: | |
| 55 QDesktopServices.openUrl(url) | |
| 56 return | |
| 57 | |
| 58 if url != QUrl("about:blank"): | |
| 59 super().doSetSource(url, type) | |
| 60 | |
| 61 self.setHtml(data) | |
| 62 self.sourceChanged.emit(url) | |
| 63 self.loadFinished.emit(True) | |
| 64 | |
| 65 def title(self): | |
| 66 """ | |
| 67 Public method get the page title. | |
| 68 | |
| 69 @return page title | |
| 70 @rtype str | |
| 71 """ | |
| 72 return self.documentTitle() | |
| 73 | |
| 74 def loadResource(self, type_, name): | |
| 75 """ | |
| 76 Public method to load data of the specified type from the resource with | |
| 77 the given name. | |
| 78 | |
| 79 @param type_ resource type | |
| 80 @type int | |
| 81 @param name resource name | |
| 82 @type QUrl | |
| 83 """ | |
| 84 ba = QByteArray() | |
| 85 | |
| 86 if type_ < 4: # QTextDocument.ResourceType.MarkdownResource | |
| 87 url = self._engine.findFile(name) | |
| 88 ba = self._engine.fileData(url) | |
| 89 if url.toString().lower().endswith(".svg"): | |
| 90 image = QImage() | |
| 91 image.loadFromData(ba, "svg") | |
| 92 if not image.isNull(): | |
| 93 return image | |
| 94 | |
| 95 return ba | |
| 96 | |
| 97 def mousePressEvent(self, evt): | |
| 98 """ | |
| 99 Protected method called by a mouse press event. | |
| 100 | |
| 101 @param evt reference to the mouse event | |
| 102 @type QMouseEvent | |
| 103 """ | |
| 104 if evt.button() == Qt.MouseButton.XButton1: | |
| 105 self.backward() | |
| 106 elif evt.button() == Qt.MouseButton.XButton2: | |
| 107 self.forward() | |
| 108 else: | |
| 109 super().mousePressEvent(evt) | |
| 110 | |
| 111 def gotoHistory(self, index): | |
| 112 """ | |
| 113 Public method to step through the history. | |
| 114 | |
| 115 @param index history index (<0 backward, >0 forward) | |
| 116 @type int | |
| 117 """ | |
| 118 if index < 0: | |
| 119 # backward | |
| 120 for ind in range(-index): | |
| 121 self.backward() | |
| 122 else: | |
| 123 # forward | |
| 124 for ind in range(index): | |
| 125 self.forward() |
