Source mapping and debugging

LogarithmPlotter/logarithmplotter.py

@@ -43,7 +43,7 @@ if path.realpath(path.join(getcwd(), "..")) not in sys_path:
     sys_path.append(path.realpath(path.join(getcwd(), "..")))
 
 from LogarithmPlotter import __VERSION__
-from LogarithmPlotter.util import config, native
+from LogarithmPlotter.util import config, native, debug
 from LogarithmPlotter.util.update import check_for_updates
 from LogarithmPlotter.util.helper import Helper
 from LogarithmPlotter.util.latex import Latex
@@ -155,6 +155,7 @@ def run():
     register_icon_directories()
     app = create_qapp()
     translator = install_translation(app)
+    debug.setup()
 
     # Installing macOS file handler.
     macos_file_open_handler = None

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/math/domain.mjs

@@ -155,7 +155,7 @@ export class Domain {
                 return Domain.ZE
                 break;
             default:
-                return new EmptySet()
+                return Domain.EmptySet
                 break;
         }
     }
@@ -182,6 +182,8 @@ export class EmptySet extends Domain {
     static import(frm) { return new EmptySet() }
 }
 
+Domain.EmptySet = new EmptySet() // To prevent use prior to declaration.
+
 /**
  * Domain classes for ranges (e.g ]0;3[, [1;2[ ...)
  */

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/module/expreval.mjs

@@ -34,7 +34,7 @@ const evalVariables = {
     "false": false
 }
 
-export class ExprParserAPI extends Module {
+class ExprParserAPI extends Module {
     constructor() {
         super("ExprParser")
         this.currentVars = {}

LogarithmPlotter/qml/eu/ad5001/LogarithmPlotter/js/module/io.mjs

@@ -178,4 +178,4 @@ class IOAPI extends Module {
 /** @type {IOAPI} */
 Modules.IO = Modules.IO || new IOAPI()
 
-export default Modules.IO
+export default Modules.IO

LogarithmPlotter/util/debug.py

@@ -0,0 +1,80 @@
+"""
+ *  LogarithmPlotter - 2D plotter software to make BODE plots, sequences and distribution functions.
+ *  Copyright (C) 2021-2024  Ad5001
+ * 
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ * 
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+"""
+
+from PySide6.QtCore import QtMsgType, qInstallMessageHandler
+from math import ceil, log10
+from sourcemap import loads
+from os import path
+
+CURRENT_PATH = path.dirname(path.realpath(__file__))
+SOURECMAP_PATH = path.realpath(f"{CURRENT_PATH}/../qml/eu/ad5001/LogarithmPlotter/js/index.mjs.map")
+SOURCEMAP_INDEX = None
+
+class LOG_COLORS:
+    GRAY = "\033[90m"
+    BLUE = "\033[94m"
+    ORANGE = "\033[38;5;166m"
+    RED = "\033[e[38;5;204m"
+    INVERT = "\033[7m"
+    RESET_INVERT = "\033[27m"
+    RESET = "\033[0m"
+
+
+
+MODES = {
+    QtMsgType.QtInfoMsg: ['info', LOG_COLORS.BLUE],
+    QtMsgType.QtWarningMsg: ['warning', LOG_COLORS.ORANGE],
+    QtMsgType.QtCriticalMsg: ['critical', LOG_COLORS.RED],
+    QtMsgType.QtFatalMsg: ['critical', LOG_COLORS.RED]
+}
+
+DEFAULT_MODE = ['debug', LOG_COLORS.GRAY]
+
+def log_qt_debug(mode, context, message):
+    """
+    Parses and renders qt log messages.
+    """
+    if mode in MODES:
+        mode = MODES[mode]
+    else:
+        mode = DEFAULT_MODE
+    line = context.line
+    source_file = context.file
+    # Remove source and line from emssage
+    if source_file is not None:
+        if message.startswith(source_file):
+            message = message[len(source_file) + 1:]
+        source_file = source_file.split("/qml")[-1] # We're only interested in that part.
+    if line is not None and message.startswith(str(line)):
+        line_length = ceil(log10((line+1) if line > 0 else 1))
+        message = message[line_length + 2:]
+    # Check MJS
+    if line is not None and source_file is not None and source_file.endswith("index.mjs"):
+        try:
+            token = SOURCEMAP_INDEX.lookup(line, 20)
+            source_file = source_file[:-len("index.mjs")] + token.src
+            line = token.src_line
+        except IndexError:
+            pass # Unable to find source, leave as is.
+    print(f"{LOG_COLORS.INVERT}{mode[1]}[{mode[0].upper()}]{LOG_COLORS.RESET_INVERT} {message}{LOG_COLORS.RESET} ({context.function} at {source_file}:{line})")
+
+def setup():
+    global SOURCEMAP_INDEX
+    with open(SOURECMAP_PATH, "r") as f:
+        SOURCEMAP_INDEX = loads(f.read())
+        qInstallMessageHandler(log_qt_debug)