Revert "Viewer: read the data-analysis algorithm documentation from Help"

This reverts commit 681e80e46.

Dropped for now: QTextBrowser::setMarkdown leaves the inline LaTeX in
CPU_DATA_ANALYSIS.md as raw "$...$" source, and the document's own HTML/math
rendering wants sorting out first. Reverted rather than rewritten so the
implementation stays available in history to bring back afterwards.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

viewer/CMakeLists.txt

@@ -87,8 +87,6 @@ ADD_EXECUTABLE(jfjoch_viewer jfjoch_viewer.cpp JFJochViewerWindow.cpp JFJochView
         windows/JFJochHelperWindow.h
         windows/JFJochLicenseWindow.cpp
         windows/JFJochLicenseWindow.h
-        windows/JFJochAlgorithmDocWindow.cpp
-        windows/JFJochAlgorithmDocWindow.h
         image_viewer/JFJochImage.cpp
         image_viewer/JFJochImage.h
         image_viewer/JFJochFollowerImage.cpp

viewer/JFJochViewerMenu.cpp

@@ -17,7 +17,6 @@
 #include <QDockWidget>
 
 #include "JFJochViewerWindow.h"
-#include "windows/JFJochAlgorithmDocWindow.h"
 #include "windows/JFJochLicenseWindow.h"
 #include "../common/GitInfo.h"
 #include "../common/CUDAWrapper.h"
@@ -82,9 +81,6 @@ JFJochViewerMenu::JFJochViewerMenu(QWidget *parent) : QMenuBar(parent) {
     const QAction *aboutAction = helpMenu->addAction("About");
     connect(aboutAction, &QAction::triggered, this, &JFJochViewerMenu::aboutSelected);
 
-    const QAction *algorithmDocAction = helpMenu->addAction("Data Analysis Algorithms");
-    connect(algorithmDocAction, &QAction::triggered, this, &JFJochViewerMenu::algorithmDocSelected);
-
     const QAction *licensesAction = helpMenu->addAction("Third-party Licenses");
     connect(licensesAction, &QAction::triggered, this, &JFJochViewerMenu::licensesSelected);
 }
@@ -152,15 +148,6 @@ void JFJochViewerMenu::licensesSelected() {
     licenseWindow->activateWindow();
 }
 
-void JFJochViewerMenu::algorithmDocSelected() {
-    // Same pattern as the licence window: created once, then raised.
-    if (algorithmDocWindow == nullptr)
-        algorithmDocWindow = new JFJochAlgorithmDocWindow(window());
-    algorithmDocWindow->show();
-    algorithmDocWindow->raise();
-    algorithmDocWindow->activateWindow();
-}
-
 void JFJochViewerMenu::openSelected() {
     QString fileName = QFileDialog::getOpenFileName(
         this,

viewer/JFJochViewerMenu.h

@@ -7,7 +7,6 @@
 
 #include "windows/JFJochHelperWindow.h"
 
-class JFJochAlgorithmDocWindow;
 class JFJochLicenseWindow;
 class QDockWidget;
 
@@ -22,7 +21,6 @@ class JFJochViewerMenu : public QMenuBar {
 
     QMenu *windowMenu = nullptr;
     JFJochLicenseWindow *licenseWindow = nullptr;
-    JFJochAlgorithmDocWindow *algorithmDocWindow = nullptr;
 public:
     explicit JFJochViewerMenu(QWidget *parent = nullptr);
     ~JFJochViewerMenu() override = default;
@@ -52,7 +50,6 @@ signals:
 private slots:
     void aboutSelected();
     void licensesSelected();
-    void algorithmDocSelected();
     void quitSelected();
     void closeSelected();
 

viewer/resources/resources.qrc

@@ -7,9 +7,6 @@
     <qresource prefix="/">
         <file>jfjoch.png</file>
         <file>third_party_licenses.html</file>
-        <!-- The algorithm documentation is shown in-app (Help > Data Analysis Algorithms);
-             aliased so the viewer does not depend on the docs/ directory at runtime. -->
-        <file alias="cpu_data_analysis.md">../../docs/CPU_DATA_ANALYSIS.md</file>
         <file>psi_01.png</file>
         <file>psi_02.png</file>
         <file>psi_03.png</file>

viewer/windows/JFJochAlgorithmDocWindow.cpp

@@ -1,23 +0,0 @@
-// SPDX-FileCopyrightText: 2026 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
-// SPDX-License-Identifier: GPL-3.0-only
-
-#include "JFJochAlgorithmDocWindow.h"
-
-#include <QFile>
-#include <QTextBrowser>
-#include <QVBoxLayout>
-
-JFJochAlgorithmDocWindow::JFJochAlgorithmDocWindow(QWidget *parent) : QDialog(parent) {
-    setWindowTitle("Data Analysis Algorithms");
-    resize(900, 700);
-
-    auto *browser = new QTextBrowser(this);
-    browser->setOpenExternalLinks(true);
-
-    QFile file(":/cpu_data_analysis.md");
-    if (file.open(QIODevice::ReadOnly | QIODevice::Text))
-        browser->setMarkdown(QString::fromUtf8(file.readAll()));
-
-    auto *layout = new QVBoxLayout(this);
-    layout->addWidget(browser);
-}

viewer/windows/JFJochAlgorithmDocWindow.h

@@ -1,15 +0,0 @@
-// SPDX-FileCopyrightText: 2026 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
-// SPDX-License-Identifier: GPL-3.0-only
-
-#pragma once
-
-#include <QDialog>
-
-// Modeless window showing the data-analysis algorithm documentation, rendered from the copy of
-// docs/CPU_DATA_ANALYSIS.md baked into the binary (:/cpu_data_analysis.md), so it is available
-// wherever the viewer runs and always matches the build.
-class JFJochAlgorithmDocWindow : public QDialog {
-    Q_OBJECT
-public:
-    explicit JFJochAlgorithmDocWindow(QWidget *parent = nullptr);
-};