feature: follow the file and show always the end when new data comes

locales/de_DE/LC_MESSAGES/messages.po

@@ -5,8 +5,8 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: RavenLog\n"
-"POT-Creation-Date: 2024-03-24 12:00+0100\n"
+"POT-Creation-Date: 2025-03-24 19:02+0100\n"
-"PO-Revision-Date: 2024-03-24 12:02+0100\n"
+"PO-Revision-Date: 2025-03-24 19:17+0100\n"
 "Last-Translator: \n"
 "Language-Team: \n"
 "Language: de\n"
@@ -15,10 +15,10 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 "Generated-By: pygettext.py 1.5\n"
-"X-Generator: Poedit 3.0.1\n"
+"X-Generator: Poedit 3.5\n"
 
-#: src/mainwindow.py:32 src/plugins/krowlog/aboutdialog.py:30
+#: src/mainwindow.py:32 src/new_big_text/bigger_text.py:75
-#: src/plugins/krowlogplugin.py:85
+#: src/plugins/krowlog/aboutdialog.py:30 src/plugins/krowlogplugin.py:85
 msgid "KrowLog"
 msgstr "KrowLog"
 
@@ -146,31 +146,31 @@ msgstr "&Über KrowLog"
 msgid "E&xit"
 msgstr "&Beenden"
 
-#: src/plugins/logfile/filterwidget.py:181
+#: src/plugins/logfile/filterwidget.py:192
 msgid "Cancel"
 msgstr "Abbrechen"
 
-#: src/plugins/logfile/filterwidget.py:187
+#: src/plugins/logfile/filterwidget.py:198
 msgid "save query"
 msgstr "suche speichern"
 
-#: src/plugins/logfile/filterwidget.py:192
+#: src/plugins/logfile/filterwidget.py:203
 msgid "ignore case"
 msgstr "Groß-/Kleinschreibung ignorieren"
 
-#: src/plugins/logfile/filterwidget.py:196
+#: src/plugins/logfile/filterwidget.py:207
 msgid "regex"
 msgstr "RegExp"
 
-#: src/plugins/logfile/filterwidget.py:206
+#: src/plugins/logfile/filterwidget.py:217
 msgid "only matches"
 msgstr "nur Treffer"
 
-#: src/plugins/logfile/filterwidget.py:298
+#: src/plugins/logfile/filterwidget.py:309
 msgid "({hits} lines)"
 msgstr "({hits} Zeilen)"
 
-#: src/plugins/logfileplugin.py:35 src/ui/bigtext/bigtext.py:258
+#: src/plugins/logfileplugin.py:35 src/ui/bigtext/bigtext.py:263
 msgid "&Highlighter"
 msgstr "&Hervorhebungen"
 
@@ -200,65 +200,69 @@ msgstr "Öffne Datei"
 
 #: src/plugins/timediff/time_diff_menu_widget.py:32
 msgid "ms"
-msgstr ""
+msgstr "ms"
 
 #: src/plugins/timediff/time_diff_menu_widget.py:33
 msgid "s"
-msgstr ""
+msgstr "s"
 
 #: src/plugins/timediff/time_diff_menu_widget.py:34
 msgid "m"
-msgstr ""
+msgstr "m"
 
 #: src/plugins/timediff/time_diff_menu_widget.py:35
 msgid "h"
-msgstr ""
+msgstr "h"
 
-#: src/ui/bigtext/bigtext.py:238
+#: src/ui/bigtext/bigtext.py:243
 msgid "&Copy to Clipboard"
 msgstr "In Zwischenablage &Kopieren"
 
-#: src/ui/bigtext/bigtext.py:246
+#: src/ui/bigtext/bigtext.py:251
 msgid "Copy to &File"
 msgstr "In &Datei Kopieren"
 
-#: src/ui/bigtext/bigtext.py:252
+#: src/ui/bigtext/bigtext.py:257
 msgid "Select &All"
 msgstr "&Alles Selektieren"
 
-#: src/ui/bigtext/bigtext.py:268
+#: src/ui/bigtext/bigtext.py:270
+msgid "&Follow"
+msgstr "&Folgen"
+
+#: src/ui/bigtext/bigtext.py:280
 msgid "Set Range Start"
 msgstr "Setze Start des Anzeigebereichs"
 
-#: src/ui/bigtext/bigtext.py:276
+#: src/ui/bigtext/bigtext.py:288
 msgid "Set Range End"
 msgstr "Setze Ende des Anzeigebereichs"
 
-#: src/ui/bigtext/bigtext.py:283
+#: src/ui/bigtext/bigtext.py:295
 msgid "Reset Range"
 msgstr "Anzeigebereich Zurücksetzen"
 
-#: src/ui/bigtext/bigtext.py:458
+#: src/ui/bigtext/bigtext.py:526
 msgid "warning"
 msgstr "Achtung"
 
-#: src/ui/bigtext/bigtext.py:459
+#: src/ui/bigtext/bigtext.py:527
 msgid "You have selected <b>{0}</b> of data."
 msgstr "Du hast <b>{0}</b> selektiert."
 
-#: src/ui/bigtext/bigtext.py:464
+#: src/ui/bigtext/bigtext.py:532
 msgid "Copy {0} to Clipboard"
 msgstr "Kopiere {0} in die Zwischenablage"
 
-#: src/ui/bigtext/bigtext.py:468
+#: src/ui/bigtext/bigtext.py:536
 msgid "Write to File"
 msgstr "Schreibe in Datei"
 
-#: src/ui/bigtext/bigtext.py:492
+#: src/ui/bigtext/bigtext.py:560
 msgid "Save File"
 msgstr "Speichere Datei"
 
-#: src/ui/bigtext/bigtext.py:529
+#: src/ui/bigtext/bigtext.py:605
 msgid "selected {0} - {1:,.0f}:{2:,.0f}"
 msgstr "selektiert {0} - {1:,.0f}:{2:,.0f}"
 
@@ -306,6 +310,10 @@ msgstr "Zeilenhintergrund"
 msgid "Regular Expression"
 msgstr "Regulärer Ausdruck"
 
+#: src/ui/bigtext/newhighlightingdialog.py:185
+msgid "File Type:"
+msgstr "Dateityp:"
+
 #: src/ui/colorbutton.py:20
 msgid "Strawberry Cream"
 msgstr "Strawberry Cream"
@@ -370,7 +378,7 @@ msgstr "Grau"
 msgid "transparent"
 msgstr "Transparent"
 
-#: src/ui/rangeslider.py:180
+#: src/ui/rangeslider.py:190
 msgid "showing bytes {0} to {1} ({2})"
 msgstr "Anzeigebereich: Bytes {0} bis {1} ({2})"
 

locales/messages.pot

@@ -5,7 +5,7 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
-"POT-Creation-Date: 2024-03-24 12:00+0100\n"
+"POT-Creation-Date: 2025-03-24 19:02+0100\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -15,8 +15,8 @@ msgstr ""
 "Generated-By: pygettext.py 1.5\n"
 
 
-#: src/mainwindow.py:32 src/plugins/krowlog/aboutdialog.py:30
+#: src/mainwindow.py:32 src/new_big_text/bigger_text.py:75
-#: src/plugins/krowlogplugin.py:85
+#: src/plugins/krowlog/aboutdialog.py:30 src/plugins/krowlogplugin.py:85
 msgid "KrowLog"
 msgstr ""
 
@@ -140,31 +140,31 @@ msgstr ""
 msgid "E&xit"
 msgstr ""
 
-#: src/plugins/logfile/filterwidget.py:181
+#: src/plugins/logfile/filterwidget.py:192
 msgid "Cancel"
 msgstr ""
 
-#: src/plugins/logfile/filterwidget.py:187
+#: src/plugins/logfile/filterwidget.py:198
 msgid "save query"
 msgstr ""
 
-#: src/plugins/logfile/filterwidget.py:192
+#: src/plugins/logfile/filterwidget.py:203
 msgid "ignore case"
 msgstr ""
 
-#: src/plugins/logfile/filterwidget.py:196
+#: src/plugins/logfile/filterwidget.py:207
 msgid "regex"
 msgstr ""
 
-#: src/plugins/logfile/filterwidget.py:206
+#: src/plugins/logfile/filterwidget.py:217
 msgid "only matches"
 msgstr ""
 
-#: src/plugins/logfile/filterwidget.py:298
+#: src/plugins/logfile/filterwidget.py:309
 msgid "({hits} lines)"
 msgstr ""
 
-#: src/plugins/logfileplugin.py:35 src/ui/bigtext/bigtext.py:258
+#: src/plugins/logfileplugin.py:35 src/ui/bigtext/bigtext.py:263
 msgid "&Highlighter"
 msgstr ""
 
@@ -208,51 +208,55 @@ msgstr ""
 msgid "h"
 msgstr ""
 
-#: src/ui/bigtext/bigtext.py:238
+#: src/ui/bigtext/bigtext.py:243
 msgid "&Copy to Clipboard"
 msgstr ""
 
-#: src/ui/bigtext/bigtext.py:246
+#: src/ui/bigtext/bigtext.py:251
 msgid "Copy to &File"
 msgstr ""
 
-#: src/ui/bigtext/bigtext.py:252
+#: src/ui/bigtext/bigtext.py:257
 msgid "Select &All"
 msgstr ""
 
-#: src/ui/bigtext/bigtext.py:268
+#: src/ui/bigtext/bigtext.py:270
+msgid "&Follow"
+msgstr ""
+
+#: src/ui/bigtext/bigtext.py:280
 msgid "Set Range Start"
 msgstr ""
 
-#: src/ui/bigtext/bigtext.py:276
+#: src/ui/bigtext/bigtext.py:288
 msgid "Set Range End"
 msgstr ""
 
-#: src/ui/bigtext/bigtext.py:283
+#: src/ui/bigtext/bigtext.py:295
 msgid "Reset Range"
 msgstr ""
 
-#: src/ui/bigtext/bigtext.py:458
+#: src/ui/bigtext/bigtext.py:526
 msgid "warning"
 msgstr ""
 
-#: src/ui/bigtext/bigtext.py:459
+#: src/ui/bigtext/bigtext.py:527
 msgid "You have selected <b>{0}</b> of data."
 msgstr ""
 
-#: src/ui/bigtext/bigtext.py:464
+#: src/ui/bigtext/bigtext.py:532
 msgid "Copy {0} to Clipboard"
 msgstr ""
 
-#: src/ui/bigtext/bigtext.py:468
+#: src/ui/bigtext/bigtext.py:536
 msgid "Write to File"
 msgstr ""
 
-#: src/ui/bigtext/bigtext.py:492
+#: src/ui/bigtext/bigtext.py:560
 msgid "Save File"
 msgstr ""
 
-#: src/ui/bigtext/bigtext.py:529
+#: src/ui/bigtext/bigtext.py:605
 msgid "selected {0} - {1:,.0f}:{2:,.0f}"
 msgstr ""
 
@@ -300,6 +304,10 @@ msgstr ""
 msgid "Regular Expression"
 msgstr ""
 
+#: src/ui/bigtext/newhighlightingdialog.py:185
+msgid "File Type:"
+msgstr ""
+
 #: src/ui/colorbutton.py:20
 msgid "Strawberry Cream"
 msgstr ""
@@ -364,7 +372,7 @@ msgstr ""
 msgid "transparent"
 msgstr ""
 
-#: src/ui/rangeslider.py:180
+#: src/ui/rangeslider.py:190
 msgid "showing bytes {0} to {1} ({2})"
 msgstr ""
 

src/plugins/logfile/filterwidget.py

@@ -237,7 +237,7 @@ class FilterWidget(QWidget):
         (handle, self.tmp_filename) = tempfile.mkstemp()
         os.close(handle)
         self.filter_model = LogFileModel(self.tmp_filename, self.source_model.settings, source_model.get_file())
-        self.hits_view = BigText(self.filter_model, show_range_slider=False)
+        self.hits_view = BigText(self.filter_model, show_range_slider=False, show_follow_action=False)
 
         self.layout.addWidget(filter_bar)
         self.layout.addWidget(self.hits_view)

src/ui/bigtext/BigScrollBar.py

@@ -14,6 +14,9 @@ class BigScrollBar(QWidget):
         code involved. We work around this by converting the python int 
         into a string."""
 
+    user_interaction = Signal()
+    """signals that the user changed a value (the opposite is that some code changed the value) """
+
     class ScrollEvent(enum.IntEnum):
         PageUp = 1
         PageDown = 2
@@ -138,21 +141,27 @@ class BigScrollBar(QWidget):
         trigger_repeat_action = True
         match self.repeat_action_control:
             case QStyle.SubControl.SC_ScrollBarAddPage:
+                self.user_interaction.emit()
                 self.scroll_event.emit(self.ScrollEvent.PageDown)
             case QStyle.SubControl.SC_ScrollBarSubPage:
+                self.user_interaction.emit()
                 self.scroll_event.emit(self.ScrollEvent.PageUp)
                 if self.value <= self.minimum:
                     trigger_repeat_action = False
             case QStyle.SubControl.SC_ScrollBarAddLine:
+                self.user_interaction.emit()
                 self.scroll_event.emit(self.ScrollEvent.LinesDown)
             case QStyle.SubControl.SC_ScrollBarSubLine:
+                self.user_interaction.emit()
                 self.scroll_event.emit(self.ScrollEvent.LinesUp)
                 if self.value <= self.minimum:
                     trigger_repeat_action = False
             case QStyle.SubControl.SC_ScrollBarFirst:
+                self.user_interaction.emit()
                 self.set_value(self.minimum)
                 trigger_repeat_action = False
             case QStyle.SubControl.SC_ScrollBarLast:
+                self.user_interaction.emit()
                 self.set_value(self.maximum)
                 trigger_repeat_action = False
             case _:
@@ -180,6 +189,7 @@ class BigScrollBar(QWidget):
                 if not r.contains(event.position().toPoint()):
                     new_position = self.snap_back_position
 
+            self.user_interaction.emit()
             # print(f"move to value: {new_position}")
             self.set_value(new_position)
 
@@ -227,7 +237,10 @@ class BigScrollBar(QWidget):
         self.repeat_action_timer.stop()
         #self.update()
 
-    def set_value(self, value: int):
+    def set_value(self, value: int, emit_change_event=True):
+        changed = self.value != value
         self.value = value
-        self.value_changed.emit(str(self.value))
+        if emit_change_event and changed:
+            # print(f"emitting value changed: {self.value}")
+            self.value_changed.emit(str(self.value))
         self.update()

src/ui/bigtext/bigtext.py

@@ -77,10 +77,11 @@ class FileWatchdogThread(QRunnable):
 class BigText(QWidget):
     trigger_update = Signal()
 
-    def __init__(self, model: LogFileModel, show_range_slider=True):
+    def __init__(self, model: LogFileModel, show_range_slider=True, show_follow_action=True):
         super(BigText, self).__init__()
 
         self.show_range_slider = show_range_slider
+        self.show_follow_action = show_follow_action
         self.model = model
 
         self.grid = QGridLayout()
@@ -102,6 +103,7 @@ class BigText(QWidget):
         # self.v_scroll_bar.setPageStep(1)
         self.v_scroll_bar.value_changed.connect(self.big_text.v_scroll_value_changed)
         self.v_scroll_bar.scroll_event.connect(self.big_text.v_scroll_event)
+        self.v_scroll_bar.user_interaction.connect(self.big_text.user_scroll_interaction)
 
         if show_range_slider:
             self.range_limit = RangeSlider()
@@ -154,6 +156,8 @@ class InnerBigText(QWidget):
     _range_start = 0
     _range_end = -1
 
+    _follow = False
+
     def __init__(self, parent: BigText, model: LogFileModel, v_scaled_scrollbar: ScaledScrollBar):
         super(InnerBigText, self).__init__()
         self.char_height = None
@@ -262,6 +266,12 @@ class InnerBigText(QWidget):
         manage_highlighting.setShortcut("CTRL+H")
         menu.addAction(manage_highlighting)
 
+        if self.parent.show_follow_action:
+            follow = QAction(_("&Follow"), self, triggered=self._toggle_follow)
+            follow.setCheckable(True)
+            follow.setChecked(self._follow)
+            menu.addAction(follow)
+
         if self.parent.show_range_slider:
             menu.addSeparator()
 
@@ -309,8 +319,12 @@ class InnerBigText(QWidget):
         self.parent.range_limit.set_range_start(0)
         self.parent.range_limit.set_range_end(self.model.byte_count())
 
+    def user_scroll_interaction(self):
+        self._follow = False
+
     def scroll_by_lines(self, scroll_lines: int):
         self.scroll_lines = scroll_lines
+        self._follow = False
         self.update()
         self.parent.v_scroll_bar.set_value(self._byte_offset)
 
@@ -565,6 +579,11 @@ class InnerBigText(QWidget):
         self._update_highlight_selected_text()
         self.update()
 
+    def _toggle_follow(self):
+        self._follow = not self._follow
+        print(f"follow={self._follow}")
+        self.update()
+
     def _update_highlight_selected_text(self):
         start_byte = self.selection_highlight.min_byte()
         end_byte = self.selection_highlight.max_byte()
@@ -601,7 +620,7 @@ class InnerBigText(QWidget):
         # "Noto Sans Mono"
         # "Noto Color Emoji"
         # "Andale Mono"
-        qfont = QFont("Noto Sans Mono", self.model.settings.getint_session('general', "font_size"))
+        qfont = QFont("Monospace", self.model.settings.getint_session('general', "font_size"))
         qfont.setStyleHint(QFont.StyleHint.Monospace)
         painter.setFont(qfont)
         self.font_metric = painter.fontMetrics()
@@ -613,6 +632,11 @@ class InnerBigText(QWidget):
         lines_to_show = math.ceil(self.lines_shown())
         # print("%s / %s = %s" %(self.height(), float(self.char_height), lines_to_show))
 
+        if self._range_end >= 0 and self._follow:
+            self.scroll_lines = 0
+            self._byte_offset = self.model.byte_count() - 1
+            self.parent.v_scroll_bar.set_value(self._byte_offset)
+
         self.lines = self.model.data(self._byte_offset, self.scroll_lines, lines_to_show, self._range_start,
                                      self._range_end)
         # print("lines_to_show: %d returned: %d" % (lines_to_show, len(self.lines)))

testbed/example.log

@@ -1,4 +1,4 @@
-01234
+012345
 01234567890123456789
 012345678901234567890123456789012345678901234567890123456789
 tab indentation: