ISC/HomePage.qml

@@ -3,24 +3,33 @@ import QtQuick.Controls
 import QtQuick.Layouts
 import ISC
 
+// ===== Home Workspace Shell =====
 Rectangle {
     id: root
     anchors.fill: parent
     color: Theme.pageBackground
     clip: true
+    border.color: Theme.outerFrameBorder
+    border.width: Theme.borderStrong
 
+    // ===== Navigation Model =====
     // Primary navigation shown in the left rail.
     property var sideActions: ["DETECT WAFER", "READ MEMORY", "OPEN CSV IN EXCEL", "ERASE MEMORY", "IMPORT DATA", "STORED DATA"]
 
+    // ===== Footer Tab Model =====
     // Footer tabs drive the active workspace section.
     property var bottomTabs: ["Status", "Graph", "Data", "Wafer Map", "Compare", "Split", "Settings", "About"]
 
+    // ===== View State =====
     property int selectedTabIndex: 0
+    property int selectedSideActionIndex: 0
 
+    // ===== Main Two-Column Layout =====
     RowLayout {
         anchors.fill: parent
         spacing: 0
 
+        // ===== Left Action Rail =====
         // Left control rail.
         Rectangle {
             id: sideRail
@@ -28,7 +37,7 @@ Rectangle {
             Layout.fillHeight: true
             color: Theme.sideRailBackground
             border.color: Theme.workspaceBorder
-            border.width: 1
+            border.width: Theme.borderThin
 
             readonly property int actionCount: root.sideActions.length
             readonly property real computedButtonHeight: Math.min(Theme.sideButtonHeight, (height - (Theme.panelPadding * 2) - (Theme.sideRailSpacing * Math.max(0, actionCount - 1))) / Math.max(1, actionCount))
@@ -44,20 +53,41 @@ Rectangle {
                     Button {
                         id: control
                         text: modelData
+                        property bool isActive: index === root.selectedSideActionIndex
                         Layout.fillWidth: true
                         Layout.preferredHeight: Math.max(Theme.sideButtonMinHeight, sideRail.computedButtonHeight)
+                        hoverEnabled: true
+                        onClicked: root.selectedSideActionIndex = index
 
                         background: Rectangle {
-                            color: control.down ? Theme.buttonPressed : Theme.cardBackground
+                            color: {
-                            border.color: Theme.cardBorder
+                                if (control.down) {
+                                    return Theme.buttonPressed;
+                                }
+                                if (control.isActive) {
+                                    return Theme.sideActiveBackground;
+                                }
+                                return "transparent";
+                            }
+                            border.color: control.isActive ? Theme.cardBorder : "transparent"
                             border.width: 1
-                            radius: 4
+                            radius: Theme.radiusSm
+
+                            Rectangle {
+                                anchors.left: parent.left
+                                anchors.top: parent.top
+                                anchors.bottom: parent.bottom
+                                width: 3
+                                visible: control.isActive
+                                color: Theme.primaryAccent
+                                radius: Theme.radiusXs
+                            }
                         }
 
                         contentItem: Text {
                             text: control.text
-                            color: Theme.headingColor
+                            color: control.isActive ? Theme.headingColor : Theme.bodyColor
-                            font.bold: true
+                            font.bold: control.isActive
                             font.pixelSize: 18
                             wrapMode: Text.WordWrap
                             horizontalAlignment: Text.AlignHCenter
@@ -74,13 +104,14 @@ Rectangle {
             Layout.fillHeight: true
             color: Theme.workspaceBackground
             border.color: Theme.workspaceBorder
-            border.width: 1
+            border.width: Theme.borderThin
 
             ColumnLayout {
                 anchors.fill: parent
                 anchors.margins: Theme.mainAreaPadding
                 spacing: Theme.rightPaneGap
 
+                // ===== Active Tab Content Area =====
                 Rectangle {
                     Layout.fillWidth: true
                     Layout.fillHeight: true
@@ -88,23 +119,45 @@ Rectangle {
                     color: Theme.responseBackground
                     border.color: Theme.responseBorder
                     border.width: 1
-                    radius: 8
+                    radius: Theme.radiusMd
+
+                    StackLayout {
+                        anchors.fill: parent
+                        currentIndex: root.selectedTabIndex
+
+                        // ===== Tab Content Routing =====
+                        Repeater {
+                            model: root.bottomTabs
+
+                            Item {
+                                property string tabName: modelData
+
+                                Loader {
+                                    anchors.fill: parent
+                                    active: parent.tabName === "Settings"
+                                    source: parent.tabName === "Settings" ? "Tabs/SettingsTab.qml" : ""
+                                }
 
                                 Label {
                                     anchors.centerIn: parent
-                        text: "Main content area"
+                                    visible: parent.tabName !== "Settings"
+                                    text: parent.tabName + " content"
                                     color: Theme.bodyColor
                                     font.pixelSize: 20
                                 }
                             }
+                        }
+                    }
+                }
 
                 // Keep the tab strip evenly distributed across the footer.
+                // ===== Footer Tab Strip =====
                 Rectangle {
                     Layout.fillWidth: true
                     Layout.preferredHeight: Theme.tabBarHeight + (Theme.tabBarPadding * 2)
                     color: Theme.tabBarBackground
                     border.color: Theme.workspaceBorder
-                    border.width: 1
+                    border.width: Theme.borderThin
 
                     RowLayout {
                         anchors.fill: parent

ISC/Tabs/SelectFileDialog.qml

@@ -0,0 +1,614 @@
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Layouts
+import Qt.labs.qmlmodels
+import ISC
+
+Dialog {
+    id: root
+    title: "Select File"
+    width: 980
+    height: 640
+    modal: true
+    padding: 16
+    topPadding: 0
+    parent: Overlay.overlay
+    x: Math.round(((parent ? parent.width : width) - width) / 2)
+    y: Math.round(((parent ? parent.height : height) - height) / 2)
+
+    signal fileChosen(string path)
+
+    // ===== Dialog State =====
+    property string selectedPath: ""
+    property var tableModel: []
+    property int selectedRow: -1
+    property int metadataEditRow: -1
+
+    function openMetadataEditor(row) {
+        metadataEditRow = row;
+        const rec = tableModel[row];
+        if (!rec) {
+            metadataEditDialog.close();
+            return;
+        }
+        waferField.text = rec.wafer ?? "";
+        dateField.text = rec.date ?? "";
+        chamberField.text = rec.chamber ?? "";
+        notesField.text = rec.notes ?? "";
+        selectedField.checked = rec.selected ?? false;
+        filePathLabel.text = rec.fileName ?? "";
+        metadataEditDialog.open();
+    }
+
+    function applyMetadataFromEditor() {
+        if (metadataEditRow < 0)
+            return;
+        const rec = tableModel[metadataEditRow];
+        if (!rec) {
+            metadataEditDialog.close();
+            return;
+        }
+        file_browser.saveMetadata(rec.fileName ?? "", waferField.text, dateField.text, chamberField.text, notesField.text, selectedField.checked);
+        metadataEditDialog.close();
+        metadataEditRow = -1;
+    }
+
+    readonly property var headerTitles: ["", "Wafer", "Date", "Chamber", "Notes", "File", "Edit", "Save"]
+    readonly property var normalizedRows: (tableModel || []).map(function (row) {
+        row = row || {};
+        return {
+            select: row.selected ?? false,
+            wafer: row.wafer ?? "",
+            date: row.date ?? "",
+            chamber: row.chamber ?? "",
+            edit: "",
+            save: "",
+            notes: row.notes ?? "",
+            fileName: row.fileName ?? "",
+            highlight: row.highlight ?? false
+        };
+    })
+
+    // ===== Reusable Controls =====
+    component DialogActionButton: Button {
+        id: dialogButton
+        hoverEnabled: true
+        implicitHeight: 36
+
+        background: Rectangle {
+            radius: Theme.radiusSm
+            color: dialogButton.down ? Theme.buttonNeutralPressed : dialogButton.hovered ? Theme.buttonNeutralHover : Theme.buttonNeutralBackground
+            border.width: Theme.borderThin
+            border.color: Theme.fieldBorder
+        }
+
+        contentItem: Text {
+            text: dialogButton.text
+            color: Theme.buttonNeutralText
+            horizontalAlignment: Text.AlignHCenter
+            verticalAlignment: Text.AlignVCenter
+            elide: Text.ElideRight
+            font.bold: true
+            font.pixelSize: 13
+        }
+    }
+
+    component DialogTextInput: TextField {
+        id: dialogTextInput
+        color: Theme.fieldText
+        placeholderTextColor: Theme.fieldPlaceholder
+        selectedTextColor: Theme.fieldBackground
+        selectionColor: Theme.fieldText
+
+        background: Rectangle {
+            radius: Theme.radiusXs
+            color: Theme.fieldBackground
+            border.width: dialogTextInput.activeFocus ? Theme.borderStrong : Theme.borderThin
+            border.color: dialogTextInput.activeFocus ? Theme.fieldBorderFocus : Theme.fieldBorder
+        }
+    }
+
+    // ===== Dialog Chrome =====
+    background: Rectangle {
+        radius: Theme.radiusLg
+        color: Theme.panelBackground
+        border.color: Theme.outerFrameBorder
+        border.width: Theme.borderStrong
+    }
+
+    // Custom header — replaces the native dark title bar
+    header: Rectangle {
+        width: root.width
+        height: 48
+        radius: Theme.radiusLg
+        color: Theme.subtleSectionBackground
+        border.color: Theme.innerFrameBorder
+        border.width: Theme.borderThin
+
+        // Square off the bottom corners
+        Rectangle {
+            anchors.left: parent.left
+            anchors.right: parent.right
+            anchors.bottom: parent.bottom
+            height: parent.radius
+            color: parent.color
+        }
+
+        Label {
+            anchors.verticalCenter: parent.verticalCenter
+            anchors.left: parent.left
+            anchors.leftMargin: 16
+            text: root.title
+            font.pixelSize: 15
+            font.bold: true
+            color: Theme.headingColor
+        }
+
+        // Close button
+        DialogActionButton {
+            anchors.verticalCenter: parent.verticalCenter
+            anchors.right: parent.right
+            anchors.rightMargin: 12
+            text: "✕"
+            implicitWidth: 32
+            implicitHeight: 32
+            onClicked: root.close()
+        }
+    }
+
+    // ===== Content =====
+    ColumnLayout {
+        anchors.fill: parent
+        spacing: 10
+
+        // ===== Browser Toolbar =====
+        RowLayout {
+            Layout.fillWidth: true
+            Layout.topMargin: 12
+            spacing: 8
+
+            DialogActionButton {
+                text: "Choose Folder"
+                Layout.preferredWidth: 140
+                onClicked: file_browser.chooseDirectory()
+            }
+
+            DialogActionButton {
+                text: "Refresh"
+                Layout.preferredWidth: 100
+                onClicked: file_browser.refreshFiles()
+            }
+
+            Rectangle {
+                Layout.fillWidth: true
+                Layout.preferredHeight: 36
+                Layout.minimumWidth: 80
+                clip: true
+                radius: Theme.radiusXs
+                color: Theme.fieldBackground
+                border.color: Theme.fieldBorder
+                border.width: Theme.borderThin
+
+                Text {
+                    anchors.fill: parent
+                    anchors.leftMargin: 10
+                    anchors.rightMargin: 10
+                    verticalAlignment: Text.AlignVCenter
+                    text: file_browser.currentDirectory
+                    color: Theme.fieldText
+                    elide: Text.ElideMiddle
+                    font.pixelSize: 13
+                }
+            }
+        }
+
+        // ===== File Table =====
+        HorizontalHeaderView {
+            id: headerView
+            syncView: tableView
+            Layout.fillWidth: true
+
+            delegate: Rectangle {
+                implicitHeight: 34
+                color: Theme.subtleSectionBackground
+                border.color: Theme.innerFrameBorder
+                border.width: Theme.borderThin
+
+                Text {
+                    anchors.centerIn: parent
+                    text: root.headerTitles[index] ?? ""
+                    font.bold: true
+                    font.pixelSize: 12
+                    color: Theme.headingColor
+                }
+            }
+        }
+
+        TableView {
+            id: tableView
+            Layout.fillWidth: true
+            Layout.fillHeight: true
+            clip: true
+            columnSpacing: 0
+            rowSpacing: 0
+            flickableDirection: Flickable.VerticalFlick
+
+            columnWidthProvider: function (col) {
+                // [select, wafer, date, chamber, notes, file (variable), edit, save]
+                const fixed = {
+                    0: 40,
+                    1: 90,
+                    2: 170,
+                    3: 120,
+                    4: 180,
+                    6: 56,
+                    7: 56
+                };
+                if (fixed.hasOwnProperty(col))
+                    return fixed[col];
+                // col 5 (File) takes remaining width
+                const w = Math.max(400, tableView.width);
+                const used = 40 + 90 + 170 + 120 + 180 + 56 + 56;
+                return Math.max(120, w - used);
+            }
+
+            model: TableModel {
+                TableModelColumn {
+                    display: "select"
+                }
+                TableModelColumn {
+                    display: "wafer"
+                }
+                TableModelColumn {
+                    display: "date"
+                }
+                TableModelColumn {
+                    display: "chamber"
+                }
+                TableModelColumn {
+                    display: "notes"
+                }
+                TableModelColumn {
+                    display: "fileName"
+                }
+                TableModelColumn {
+                    display: "edit"
+                }
+                TableModelColumn {
+                    display: "save"
+                }
+                rows: root.normalizedRows
+            }
+
+            delegate: Rectangle {
+                required property bool current
+                required property int row
+                required property int column
+
+                implicitHeight: 40
+                border.color: Theme.softBorder
+                border.width: Theme.borderThin
+                color: {
+                    if (root.selectedRow === row)
+                        return Theme.sideActiveBackground;
+                    if (root.tableModel[row]?.highlight)
+                        return Theme.subtleSectionBackground;
+                    return row % 2 === 0 ? Theme.cardBackground : Theme.tone100;
+                }
+
+                // Checkbox (col 0)
+                Loader {
+                    anchors.fill: parent
+                    active: column === 0
+                    sourceComponent: CheckBox {
+                        anchors.centerIn: parent
+                        checked: root.tableModel[row]?.selected ?? false
+                        onCheckedChanged: {
+                            if (root.tableModel[row])
+                                root.tableModel[row].selected = checked;
+                        }
+                    }
+                }
+
+                // Edit button (col 6)
+                Loader {
+                    anchors.fill: parent
+                    anchors.margins: 4
+                    active: column === 6
+                    sourceComponent: Button {
+                        hoverEnabled: true
+                        text: "Edit…"
+                        font.pixelSize: 12
+                        onClicked: root.openMetadataEditor(row)
+
+                        background: Rectangle {
+                            radius: Theme.radiusXs
+                            color: parent.down ? Theme.buttonNeutralPressed : parent.hovered ? Theme.buttonNeutralHover : Theme.buttonNeutralBackground
+                            border.width: Theme.borderThin
+                            border.color: Theme.fieldBorder
+                        }
+
+                        contentItem: Text {
+                            text: parent.text
+                            color: Theme.buttonNeutralText
+                            horizontalAlignment: Text.AlignHCenter
+                            verticalAlignment: Text.AlignVCenter
+                            font.pixelSize: 12
+                        }
+                    }
+                }
+
+                // Save button (col 7)
+                Loader {
+                    anchors.fill: parent
+                    anchors.margins: 4
+                    active: column === 7
+                    sourceComponent: Button {
+                        hoverEnabled: true
+                        text: "Save"
+                        font.pixelSize: 12
+                        onClicked: {
+                            const record = root.tableModel[row];
+                            if (!record)
+                                return;
+                            file_browser.saveMetadata(record.fileName ?? "", record.wafer ?? "", record.date ?? "", record.chamber ?? "", record.notes ?? "", record.selected ?? false);
+                        }
+
+                        background: Rectangle {
+                            radius: Theme.radiusXs
+                            color: parent.down ? Theme.buttonNeutralPressed : parent.hovered ? Theme.buttonNeutralHover : Theme.buttonNeutralBackground
+                            border.width: Theme.borderThin
+                            border.color: Theme.fieldBorder
+                        }
+
+                        contentItem: Text {
+                            text: parent.text
+                            color: Theme.buttonNeutralText
+                            horizontalAlignment: Text.AlignHCenter
+                            verticalAlignment: Text.AlignVCenter
+                            font.pixelSize: 12
+                        }
+                    }
+                }
+
+                // Text columns: Wafer (1), Date (2), File (5)
+                Loader {
+                    anchors.fill: parent
+                    active: column === 1 || column === 2 || column === 5
+                    sourceComponent: Text {
+                        anchors.fill: parent
+                        anchors.leftMargin: 8
+                        anchors.rightMargin: 8
+                        verticalAlignment: Text.AlignVCenter
+                        text: {
+                            const record = root.tableModel[row] || {};
+                            if (column === 1)
+                                return record.wafer ?? "";
+                            if (column === 2)
+                                return record.date ?? "";
+                            if (column === 5)
+                                return record.fileName ?? "";
+                            return "";
+                        }
+                        elide: Text.ElideRight
+                        font.pixelSize: 13
+                        color: Theme.bodyColor
+                    }
+                }
+
+                // Text columns: Chamber (3), Notes (4)
+                Loader {
+                    anchors.fill: parent
+                    active: column === 3 || column === 4
+                    sourceComponent: Text {
+                        anchors.fill: parent
+                        anchors.leftMargin: 8
+                        anchors.rightMargin: 8
+                        verticalAlignment: Text.AlignVCenter
+                        text: {
+                            const record = root.tableModel[row] || {};
+                            if (column === 3)
+                                return record.chamber ?? "";
+                            return record.notes ?? "";
+                        }
+                        elide: Text.ElideRight
+                        font.pixelSize: 13
+                        color: Theme.bodyColor
+                    }
+                }
+
+                MouseArea {
+                    anchors.fill: parent
+                    enabled: column !== 0 && column !== 6 && column !== 7
+                    onClicked: {
+                        root.selectedRow = row;
+                        root.selectedPath = root.tableModel[row]?.fileName ?? "";
+                    }
+                }
+            }
+        }
+
+        // ===== Bottom Bar =====
+        RowLayout {
+            Layout.fillWidth: true
+            spacing: 8
+
+            DialogActionButton {
+                text: "OK"
+                Layout.preferredWidth: 90
+                onClicked: {
+                    root.fileChosen(root.selectedPath);
+                    root.close();
+                }
+            }
+
+            DialogActionButton {
+                text: "Cancel"
+                Layout.preferredWidth: 90
+                onClicked: root.close()
+            }
+
+            Rectangle {
+                Layout.fillWidth: true
+                Layout.preferredHeight: 32
+                Layout.minimumWidth: 120
+                clip: true
+                radius: Theme.radiusXs
+                color: Theme.fieldBackground
+                border.color: Theme.fieldBorder
+                border.width: Theme.borderThin
+
+                Text {
+                    anchors.fill: parent
+                    anchors.leftMargin: 10
+                    anchors.rightMargin: 10
+                    verticalAlignment: Text.AlignVCenter
+                    text: root.selectedPath
+                    elide: Text.ElideLeft
+                    font.pixelSize: 13
+                    color: root.selectedPath ? Theme.fieldText : Theme.fieldPlaceholder
+                }
+            }
+        }
+    }
+
+    // ===== Metadata Editor Dialog =====
+    Dialog {
+        id: metadataEditDialog
+        parent: Overlay.overlay
+        modal: true
+        title: qsTr("Edit File Information")
+        width: 520
+        height: 520
+        padding: 16
+        topPadding: 0
+        x: Math.round(((parent ? parent.width : width) - width) / 2)
+        y: Math.round(((parent ? parent.height : height) - height) / 2)
+
+        background: Rectangle {
+            radius: Theme.radiusLg
+            color: Theme.panelBackground
+            border.color: Theme.outerFrameBorder
+            border.width: Theme.borderStrong
+        }
+
+        header: Rectangle {
+            width: metadataEditDialog.width
+            height: 48
+            radius: Theme.radiusLg
+            color: Theme.subtleSectionBackground
+            border.color: Theme.innerFrameBorder
+            border.width: Theme.borderThin
+
+            Rectangle {
+                anchors.left: parent.left
+                anchors.right: parent.right
+                anchors.bottom: parent.bottom
+                height: parent.radius
+                color: parent.color
+            }
+
+            Label {
+                anchors.verticalCenter: parent.verticalCenter
+                anchors.left: parent.left
+                anchors.leftMargin: 16
+                text: metadataEditDialog.title
+                font.pixelSize: 15
+                font.bold: true
+                color: Theme.headingColor
+            }
+        }
+
+        ColumnLayout {
+            anchors.fill: parent
+            spacing: Theme.settingsGridSpacing
+
+            Label {
+                text: qsTr("File")
+                font.bold: true
+                color: Theme.headingColor
+            }
+
+            Text {
+                id: filePathLabel
+                Layout.fillWidth: true
+                Layout.maximumHeight: 56
+                wrapMode: Text.WrapAnywhere
+                maximumLineCount: 3
+                elide: Text.ElideRight
+                color: Theme.bodyColor
+                font.pixelSize: 12
+            }
+
+            Label {
+                text: qsTr("Wafer")
+                color: Theme.headingColor
+            }
+            DialogTextInput {
+                id: waferField
+                Layout.fillWidth: true
+                Layout.preferredHeight: 36
+            }
+
+            Label {
+                text: qsTr("Date")
+                color: Theme.headingColor
+            }
+            DialogTextInput {
+                id: dateField
+                Layout.fillWidth: true
+                Layout.preferredHeight: 36
+            }
+
+            Label {
+                text: qsTr("Chamber")
+                color: Theme.headingColor
+            }
+            DialogTextInput {
+                id: chamberField
+                Layout.fillWidth: true
+                Layout.preferredHeight: 36
+            }
+
+            Label {
+                text: qsTr("Notes")
+                color: Theme.headingColor
+            }
+            DialogTextInput {
+                id: notesField
+                Layout.fillWidth: true
+                Layout.preferredHeight: 36
+            }
+
+            CheckBox {
+                id: selectedField
+                text: qsTr("Selected for processing")
+            }
+
+            RowLayout {
+                Layout.fillWidth: true
+                Layout.topMargin: 8
+                spacing: 8
+
+                Item {
+                    Layout.fillWidth: true
+                }
+
+                DialogActionButton {
+                    text: qsTr("Cancel")
+                    Layout.preferredWidth: 90
+                    onClicked: {
+                        root.metadataEditRow = -1;
+                        metadataEditDialog.close();
+                    }
+                }
+
+                DialogActionButton {
+                    text: qsTr("Save")
+                    Layout.preferredWidth: 90
+                    onClicked: root.applyMetadataFromEditor()
+                }
+            }
+        }
+    }
+}

ISC/Tabs/SettingsTab.qml

@@ -0,0 +1,437 @@
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Layouts
+import QtQuick.Dialogs
+import ISC
+
+Item {
+    id: root
+    anchors.fill: parent
+
+    // ===== CSV metadata dialog (must not live inside RowLayout: implicit size breaks the tab) =====
+    SelectFileDialog {
+        id: selectFileDialog
+        tableModel: file_browser.files
+        onFileChosen: function (path) {
+            root.handleCsvSelected(path);
+        }
+    }
+
+    function handleEditCsvMetadata() {
+        file_browser.refreshFiles();
+        selectFileDialog.open();
+    }
+
+    function handleCsvSelected(filePath) {
+        console.log("Doing work with:", filePath);
+        // @todo: implement CSV metadata handling after file selection.
+    }
+
+    // ===== Settings Data Helpers =====
+    readonly property var masterFamilies: ["A", "B", "C", "D", "E", "F", "P", "X", "Z"]
+
+    function masterPath(family) {
+        const table = settingsModel.masters;
+        return table && table[family] ? table[family] : "";
+    }
+
+    function statusColor() {
+        if (!settingsModel.isValid) {
+            return Theme.statusWarningColor;
+        }
+        return settingsModel.saveStatus.indexOf("error:") === 0 ? Theme.statusErrorColor : Theme.statusSuccessColor;
+    }
+
+    // ===== Reusable Settings Components =====
+    component SettingsGroupBox: GroupBox {
+        id: settingsGroup
+
+        background: Rectangle {
+            y: settingsGroup.topPadding - settingsGroup.bottomPadding
+            width: settingsGroup.width
+            height: settingsGroup.height - settingsGroup.topPadding + settingsGroup.bottomPadding
+            radius: Theme.radiusMd
+            color: Theme.panelBackground
+            border.color: Theme.innerFrameBorder
+            border.width: Theme.borderThin
+        }
+
+        label: Label {
+            text: settingsGroup.title
+            color: Theme.panelTitleText
+            font.pixelSize: 16
+            font.bold: true
+        }
+    }
+
+    component SettingsTextInput: TextField {
+        id: textInput
+        color: Theme.fieldText
+        placeholderTextColor: Theme.fieldPlaceholder
+        selectedTextColor: Theme.fieldBackground
+        selectionColor: Theme.fieldText
+
+        background: Rectangle {
+            radius: Theme.radiusXs
+            color: Theme.fieldBackground
+            border.width: textInput.activeFocus ? Theme.borderStrong : Theme.borderThin
+            border.color: textInput.activeFocus ? Theme.fieldBorderFocus : Theme.fieldBorder
+        }
+    }
+
+    component SettingsActionButton: Button {
+        id: actionButton
+        hoverEnabled: true
+
+        background: Rectangle {
+            radius: Theme.radiusSm
+            color: actionButton.down ? Theme.buttonNeutralPressed : (actionButton.hovered ? Theme.buttonNeutralHover : Theme.buttonNeutralBackground)
+            border.width: Theme.borderThin
+            border.color: Theme.fieldBorder
+        }
+
+        contentItem: Text {
+            text: actionButton.text
+            color: Theme.buttonNeutralText
+            horizontalAlignment: Text.AlignHCenter
+            verticalAlignment: Text.AlignVCenter
+            elide: Text.ElideRight
+            font.bold: true
+        }
+    }
+
+    component SettingsToggle: CheckBox {
+        id: toggle
+        indicator: Rectangle {
+            implicitWidth: 20
+            implicitHeight: 20
+            x: toggle.leftPadding
+            y: parent.height / 2 - height / 2
+            radius: Theme.radiusXs
+            color: toggle.checked ? Theme.primaryAccent : Theme.fieldBackground
+            border.width: Theme.borderThin
+            border.color: toggle.checked ? Theme.primaryAccent : Theme.fieldBorder
+
+            Rectangle {
+                anchors.centerIn: parent
+                width: 9
+                height: 9
+                radius: Theme.radiusXs
+                visible: toggle.checked
+                color: Theme.fieldBackground
+            }
+        }
+
+        contentItem: Text {
+            text: toggle.text
+            color: Theme.checkboxText
+            verticalAlignment: Text.AlignVCenter
+            leftPadding: toggle.indicator.width + toggle.spacing
+        }
+    }
+
+    // ===== File Picker Dialog =====
+    FileDialog {
+        id: masterPicker
+        title: "Choose Master CSV"
+        nameFilters: ["CSV files (*.csv)"]
+        property string targetFamily: ""
+        onAccepted: settingsModel.setMaster(targetFamily, selectedFile.toLocalFile())
+    }
+
+    // ===== Settings Page Layout =====
+    Item {
+        anchors.fill: parent
+
+        ScrollView {
+            id: settingsScroll
+            anchors.fill: parent
+            anchors.margins: Theme.settingsOuterMargin
+
+            contentWidth: availableWidth
+            contentHeight: container.implicitHeight
+
+            ScrollBar.vertical: ScrollBar {
+                parent: settingsScroll
+                anchors.top: settingsScroll.top
+                anchors.right: settingsScroll.right
+                anchors.bottom: settingsScroll.bottom
+                policy: ScrollBar.AsNeeded
+
+                contentItem: Rectangle {
+                    implicitWidth: 8
+                    implicitHeight: 8
+                    radius: Theme.radiusSm
+                    color: Theme.trackBackground
+                }
+
+                background: Rectangle {
+                    implicitWidth: 8
+                    color: "transparent"
+                }
+            }
+
+            ColumnLayout {
+                id: container
+                width: Math.min(settingsScroll.availableWidth, Theme.settingsPanelMaxWidth)
+                x: (settingsScroll.availableWidth - width) / 2
+                spacing: Theme.settingsSectionSpacing
+
+                // ===== Page Title =====
+                Label {
+                    text: "Settings"
+                    font.pixelSize: 30
+                    font.bold: true
+                    color: Theme.headingColor
+                }
+
+                // ===== Chamber Settings =====
+                SettingsGroupBox {
+                    title: "Chamber"
+                    Layout.fillWidth: true
+
+                    RowLayout {
+                        anchors.fill: parent
+                        spacing: Theme.settingsRowSpacing
+
+                        Label {
+                            text: "Chamber ID"
+                            color: Theme.headingColor
+                            Layout.alignment: Qt.AlignVCenter
+                        }
+
+                        SettingsTextInput {
+                            id: chamberField
+                            Layout.fillWidth: true
+                            Layout.minimumWidth: Theme.settingsFieldMinWidth
+                            placeholderText: "Enter chamber ID"
+                            text: settingsModel.chamberId
+                            onEditingFinished: settingsModel.setChamberId(text)
+
+                            Connections {
+                                target: settingsModel
+                                function onChamberIdChanged() {
+                                    if (!chamberField.activeFocus) {
+                                        chamberField.text = settingsModel.chamberId;
+                                    }
+                                }
+                            }
+                        }
+
+                        SettingsActionButton {
+                            text: "Set"
+                            Layout.preferredWidth: 90
+                            Layout.preferredHeight: Theme.settingsButtonHeight
+                            onClicked: settingsModel.setChamberId(chamberField.text)
+                        }
+                    }
+                }
+
+                // ===== Master CSV Mapping =====
+                SettingsGroupBox {
+                    title: "Master Files"
+                    Layout.fillWidth: true
+
+                    ColumnLayout {
+                        anchors.fill: parent
+                        spacing: Theme.settingsGridSpacing
+
+                        Repeater {
+                            model: root.masterFamilies
+
+                            RowLayout {
+                                property string family: modelData
+
+                                Layout.fillWidth: true
+                                spacing: Theme.settingsRowSpacing
+
+                                Label {
+                                    text: family
+                                    font.bold: true
+                                    color: Theme.headingColor
+                                    Layout.preferredWidth: 24
+                                }
+
+                                SettingsTextInput {
+                                    Layout.fillWidth: true
+                                    readOnly: true
+                                    text: root.masterPath(family)
+                                    placeholderText: "No master selected"
+                                    color: Theme.bodyColor
+                                }
+
+                                SettingsActionButton {
+                                    text: "Browse"
+                                    Layout.preferredHeight: Theme.settingsButtonHeight
+                                    onClicked: {
+                                        masterPicker.targetFamily = family;
+                                        masterPicker.open();
+                                    }
+                                }
+
+                                SettingsActionButton {
+                                    text: "Clear"
+                                    Layout.preferredHeight: Theme.settingsButtonHeight
+                                    onClicked: settingsModel.clearMaster(family)
+                                }
+                            }
+                        }
+                    }
+                }
+
+                // ===== Wafer Behavior =====
+                SettingsGroupBox {
+                    title: "Wafer Behavior"
+                    Layout.fillWidth: true
+
+                    ColumnLayout {
+                        anchors.fill: parent
+                        spacing: Theme.settingsGridSpacing
+
+                        SettingsToggle {
+                            text: "Reverse Z Wafer"
+                            checked: settingsModel.reverseZWafer
+                            onToggled: settingsModel.setReverseZWafer(checked)
+                        }
+                    }
+                }
+
+                // ===== Appearance =====
+                SettingsGroupBox {
+                    title: "Appearance"
+                    Layout.fillWidth: true
+
+                    RowLayout {
+                        anchors.fill: parent
+                        spacing: Theme.settingsRowSpacing
+
+                        // Custom pill toggle
+                        Rectangle {
+                            id: toggleTrack
+                            implicitWidth: 52
+                            implicitHeight: 28
+                            radius: height / 2
+                            color: Theme.trackBackground
+                            Layout.alignment: Qt.AlignVCenter
+                            Layout.preferredWidth: implicitWidth
+                            Layout.preferredHeight: implicitHeight
+
+                            Behavior on color {
+                                ColorAnimation {
+                                    duration: 250
+                                    easing.type: Easing.InOutQuad
+                                }
+                            }
+
+                            // Thumb
+                            Rectangle {
+                                id: toggleThumb
+                                width: 22
+                                height: 22
+                                radius: height / 2
+                                color: "white"
+                                anchors.verticalCenter: parent.verticalCenter
+                                x: Theme.isDarkMode ? parent.width - width - 3 : 3
+
+                                Behavior on x {
+                                    NumberAnimation {
+                                        duration: 250
+                                        easing.type: Easing.InOutQuad
+                                    }
+                                }
+
+                                // Drop shadow effect
+                                layer.enabled: true
+                                layer.effect: null  // swap for DropShadow if Qt.labs.effects is available
+                            }
+
+                            MouseArea {
+                                anchors.fill: parent
+                                cursorShape: Qt.PointingHandCursor
+                                onClicked: Theme.isDarkMode = !Theme.isDarkMode
+                            }
+                        }
+
+                        // Label
+                        Label {
+                            text: Theme.isDarkMode ? "Dark" : "Light"
+                            color: Theme.bodyColor
+                            font.pixelSize: 13
+                            Layout.alignment: Qt.AlignVCenter
+
+                            Behavior on color {
+                                ColorAnimation {
+                                    duration: 200
+                                }
+                            }
+                        }
+
+                        Item {
+                            Layout.fillWidth: true
+                        }
+                    }
+                }
+
+                // ===== Adjustment Entry Point =====
+                RowLayout {
+                    id: adjustmentRow
+                    Layout.fillWidth: true
+                    spacing: Theme.settingsRowSpacing
+
+                    SettingsActionButton {
+                        text: "Edit CSV Metadata"
+                        Layout.preferredWidth: Theme.settingsActionWidth
+                        Layout.preferredHeight: Theme.settingsButtonHeight
+                        onClicked: root.handleEditCsvMetadata()
+                    }
+
+                    Item {
+                        Layout.fillWidth: true
+                    }
+                }
+            }
+        }
+
+        // ===== Scroll hint overlay (fades out when scrolled) =====
+        Rectangle {
+            id: scrollHint
+            anchors.bottom: parent.bottom
+            anchors.left: parent.left
+            anchors.right: parent.right
+            height: 48
+            gradient: Gradient {
+                GradientStop {
+                    position: 0.0
+                    color: Theme.isDarkMode ? 'rgba(30,30,35,1)' : 'rgba(255,255,255,1)'
+                }
+                GradientStop {
+                    position: 1.0
+                    color: Qt.transparent
+                }
+            }
+
+            Label {
+                anchors.centerIn: parent
+                text: "↓ Scroll for more"
+                font.pixelSize: 13
+                font.bold: true
+                color: Theme.bodyColor
+                opacity: (settingsScroll.ScrollBar.vertical.position <= 0 && settingsScroll.contentHeight > settingsScroll.height) ? (scrollHintTimer.running ? 1 : 0) : 0
+
+                Behavior on opacity {
+                    NumberAnimation {
+                        duration: 400
+                    }
+                }
+            }
+        }
+    }
+
+    // ===== Auto-hide scroll hint after first interaction =====
+    Timer {
+        id: scrollHintTimer
+        running: true
+        repeat: false
+        onTriggered: scrollHint.visible = false
+    }
+}

ISC/Theme.qml

@@ -2,44 +2,120 @@ pragma Singleton
 
 import QtQuick
 
-// ===== Shared Theme Tokens =====
+// =============================================================================
+//  Theme — single source of truth for colors and sizing
+// =============================================================================
+//  Sections:
+//    1.  Mode flag
+//    2.  Tone palette          (raw tones; everything else derives from these)
+//    3.  Surfaces              (page / card / panel / workspace backgrounds)
+//    4.  Borders
+//    5.  Text                  (headings, body, panel titles)
+//    6.  Controls              (fields, buttons, checkbox)
+//    7.  Tracks                (pill toggle + scrollbar)
+//    8.  Tabs                  (footer tab bar)
+//    9.  Side rail
+//   10.  Status                (success / warning / error)
+//   11.  Geometry              (radius / border width / spacing / sizing)
+// =============================================================================
+
 QtObject {
-    // ===== Theme Mode =====
+    // ── 1. Mode ──────────────────────────────────────────────────────────────
-    // Toggle this to preview the same shell in light mode.
+    property bool isDarkMode: false
-    property bool isDarkMode: true
 
-    // ===== Surface Colors =====
+    // ── 2. Tone palette (base values; consume via semantic tokens below) ─────
-    // Core application surfaces.
+    readonly property color tone100: isDarkMode ? "#111111" : "#FAFAFA"
-    readonly property color pageBackground: isDarkMode ? "#11161c" : "#eef4f7"
+    readonly property color tone200: isDarkMode ? "#1A1A1A" : "#F2F2F2"
-    readonly property color cardBackground: isDarkMode ? "#1b232d" : "#ffffff"
+    readonly property color tone300: isDarkMode ? "#242424" : "#E8E8E8"
-    readonly property color workspaceBackground: isDarkMode ? "#121923" : "#ffffff"
+    readonly property color toneText: isDarkMode ? "#F2F2F2" : "#111111"
-    readonly property color sideRailBackground: isDarkMode ? "#18202a" : "#f5f7fa"
+    readonly property color toneMute: isDarkMode ? "#A8A8A8" : "#8A8A8A"
-    readonly property color responseBackground: isDarkMode ? "#18212a" : "#f9fbfc"
+    readonly property color toneBorder: isDarkMode ? "#2B2B2B" : "#D8D8D8"
 
-    // Shared border and text colors.
+    // ── 3. Surfaces ──────────────────────────────────────────────────────────
-    readonly property color cardBorder: isDarkMode ? "#334155" : "#cbd5e1"
+    readonly property color pageBackground: tone100
-    readonly property color workspaceBorder: isDarkMode ? "#334155" : "#d7dde5"
+    readonly property color cardBackground: tone200
-    readonly property color responseBorder: isDarkMode ? "#334155" : "#d5e0e8"
+    readonly property color panelBackground: tone200
+    readonly property color workspaceBackground: tone200
+    readonly property color responseBackground: tone200
+    readonly property color subtleSectionBackground: tone300
 
-    readonly property color headingColor: isDarkMode ? "#e5eef7" : "#12324a"
+    // ── 4. Borders ───────────────────────────────────────────────────────────
-    readonly property color bodyColor: isDarkMode ? "#afbdca" : "#415a6b"
+    readonly property color cardBorder: toneBorder
-    readonly property color buttonPressed: isDarkMode ? "#214d60" : "#17576c"
+    readonly property color responseBorder: toneBorder
-    readonly property color statusSuccessColor: isDarkMode ? "#7cd67e" : "#1f7a33"
+    readonly property color workspaceBorder: toneBorder
-    readonly property color statusErrorColor: isDarkMode ? "#ff8a80" : "#c62828"
+    readonly property color innerFrameBorder: toneBorder
-    readonly property color statusWarningColor: isDarkMode ? "#f3c677" : "#9a6700"
+    readonly property color outerFrameBorder: isDarkMode ? "#343434" : "#CECECE"
+    readonly property color softBorder: isDarkMode ? "#222222" : "#E2E2E2"
 
-    // ===== Side Rail Sizing =====
+    // ── 5. Text ──────────────────────────────────────────────────────────────
+    readonly property color headingColor: toneText
+    readonly property color bodyColor: toneMute
+    readonly property color panelTitleText: toneMute
+
+    // ── 6. Controls ──────────────────────────────────────────────────────────
+    // Fields
+    readonly property color fieldBackground: tone100
+    readonly property color fieldText: toneText
+    readonly property color fieldPlaceholder: toneMute
+    readonly property color fieldBorder: toneBorder
+    readonly property color fieldBorderFocus: toneText
+    // Neutral buttons
+    readonly property color buttonNeutralBackground: tone300
+    readonly property color buttonNeutralHover: isDarkMode ? "#303030" : "#DDDDDD"
+    readonly property color buttonNeutralPressed: tone100
+    readonly property color buttonNeutralText: toneText
+    readonly property color buttonPressed: tone300
+    readonly property color primaryAccent: toneText
+    // Checkbox
+    readonly property color checkboxText: toneText
+
+    // ── 7. Tracks (pill toggle, scrollbar thumb) ─────────────────────────────
+    readonly property color trackBackground: isDarkMode ? "#25252B" : "#D1D5DB"
+
+    // ── 8. Tabs (footer tab bar) ─────────────────────────────────────────────
+    readonly property color tabBarBackground: tone200
+    readonly property color tabBackground: "transparent"
+    readonly property color tabActiveBackground: "transparent"
+    readonly property color tabHoverBackground: tone300
+    readonly property color tabBorder: "transparent"
+    readonly property color tabText: toneMute
+    readonly property color tabActiveText: toneText
+
+    // ── 9. Side rail ─────────────────────────────────────────────────────────
+    readonly property color sideRailBackground: tone200
+    readonly property color sideActiveBackground: tone300
+
+    // ── 10. Status ───────────────────────────────────────────────────────────
+    readonly property color statusSuccessColor: isDarkMode ? "#63D471" : "#2E9E44"
+    readonly property color statusWarningColor: isDarkMode ? "#F5C15C" : "#C88A18"
+    readonly property color statusErrorColor: isDarkMode ? "#FF6B6B" : "#D64545"
+
+    // ── 11. Geometry ─────────────────────────────────────────────────────────
+    // Radius
+    readonly property int radiusXs: 4   // fields, tight elements
+    readonly property int radiusSm: 6   // buttons
+    readonly property int radiusMd: 10  // cards, group boxes
+    readonly property int radiusLg: 14  // large panels / dialogs
+    // Border width
+    readonly property int borderThin: 1
+    readonly property int borderStrong: 2
+    // Main panel layout
+    readonly property int mainAreaPadding: 10
+    readonly property int rightPaneGap: 6
+    readonly property int panelPadding: 12
+    // Side rail layout
     readonly property int sideRailWidth: 190
     readonly property int sideRailSpacing: 14
     readonly property int sideButtonHeight: 146
     readonly property int sideButtonMinHeight: 88
-    readonly property int panelPadding: 12
+    // Tab bar layout
-
-    // ===== Main Panel Spacing =====
-    // Main content spacing.
-    readonly property int mainAreaPadding: 10
-    readonly property int rightPaneGap: 6
     readonly property int tabBarHeight: 34
+    readonly property int tabBarPadding: 6
+    readonly property int tabSpacing: 2
+    readonly property int tabRadius: 2
+    readonly property int tabFontSize: 12
+    readonly property int tabButtonMinWidth: 80
+    // Settings page layout
     readonly property int settingsPanelMaxWidth: 760
     readonly property int settingsOuterMargin: 40
     readonly property int settingsSectionSpacing: 20
@@ -48,28 +124,4 @@ QtObject {
     readonly property int settingsButtonHeight: 40
     readonly property int settingsActionWidth: 200
     readonly property int settingsFieldMinWidth: 160
-
-    // ===== Footer Tab Theme =====
-    // Bottom tab styling.
-    readonly property color tabBarBackground: isDarkMode ? "#161d26" : "#f2f2f2"
-    readonly property color tabBackground: isDarkMode ? "#202833" : "#ececec"
-    readonly property color tabActiveBackground: isDarkMode ? "#2a3440" : "#ffffff"
-    readonly property color tabHoverBackground: isDarkMode ? "#263140" : "#f7f7f7"
-    readonly property color tabBorder: isDarkMode ? "#3a4758" : "#cfcfcf"
-    readonly property color tabText: isDarkMode ? "#c6d0da" : "#222222"
-    readonly property color tabActiveText: isDarkMode ? "#ffffff" : "#111111"
-
-    readonly property int tabButtonMinWidth: 80
-    readonly property int tabHorizontalPadding: 14
-    readonly property int tabBarPadding: 6
-    readonly property int tabSpacing: 2
-    readonly property int tabRadius: 2
-    readonly property int tabFontSize: 12
-
-    // ===== Form Control Theme =====
-    readonly property color inputBackground: isDarkMode ? "#202833" : "#ffffff"
-    readonly property color inputBorder: isDarkMode ? "#4a596d" : "#cfcfcf"
-    readonly property color buttonBackground: isDarkMode ? "#202833" : "#ffffff"
-    readonly property color buttonText: isDarkMode ? "#e5eef7" : "#111111"
-    readonly property color checkboxText: isDarkMode ? "#d6dfeb" : "#111111"
 }

backend/file_browser.py

@@ -0,0 +1,230 @@
+from __future__ import annotations
+
+import json
+import re
+from datetime import datetime
+from pathlib import Path
+
+from PySide6.QtCore import QObject, Property, QStandardPaths, Signal, Slot
+from PySide6.QtWidgets import QFileDialog, QMessageBox
+
+from backend.csv_file_metadata import CSVFileMetadata
+from backend.zwafer_parser import ZWaferParser
+
+
+# ===== File Browser Model =====
+class FileBrowser(QObject):
+    # ===== Change Signals =====
+    filesChanged = Signal()
+    currentDirectoryChanged = Signal()
+
+    # ===== Lifecycle =====
+    def __init__(self, parent: QObject | None = None) -> None:
+        super().__init__(parent)
+        self._parser = ZWaferParser()
+        self._files: list[dict[str, object]] = []
+        self._current_directory = self._resolve_default_directory()
+        self._refresh_files(show_empty_message=False)
+
+    # ===== Exposed Properties =====
+    @Property("QVariantList", notify=filesChanged)
+    def files(self) -> list[dict[str, object]]:
+        return [dict(row) for row in self._files]
+
+    @Property(str, notify=currentDirectoryChanged)
+    def currentDirectory(self) -> str:
+        return str(self._current_directory)
+
+    # ===== Directory Selection =====
+    @Slot()
+    def chooseDirectory(self) -> None:
+        selected_dir = QFileDialog.getExistingDirectory(
+            None,
+            "Select CSV Folder",
+            self.currentDirectory,
+        )
+        if not selected_dir:
+            return
+
+        self._set_current_directory(Path(selected_dir))
+        self._refresh_files(show_empty_message=True)
+
+    @Slot()
+    def refreshFiles(self) -> None:
+        self._refresh_files(show_empty_message=False)
+
+    # ===== Metadata Persistence =====
+    @Slot(str, str, str, str, str, bool)
+    def saveMetadata(
+        self,
+        file_path: str,
+        wafer: str,
+        date: str,
+        chamber: str,
+        notes: str,
+        selected: bool,
+    ) -> None:
+        csv_path = Path(file_path)
+        if not csv_path.exists():
+            self._show_error(f"CSV file was not found:\n{file_path}")
+            return
+
+        row = self._find_row(file_path)
+        if row is None:
+            self._show_error("The selected CSV row is no longer available.")
+            return
+
+        row["wafer"] = wafer
+        row["date"] = date
+        row["chamber"] = chamber
+        row["notes"] = notes
+        row["selected"] = selected
+
+        payload = {
+            "wafer": wafer,
+            "date": date,
+            "chamber": chamber,
+            "notes": notes,
+        }
+
+        try:
+            sidecar_path = self._sidecar_path(csv_path)
+            sidecar_path.write_text(json.dumps(payload, indent=4), encoding="utf-8")
+        except Exception as exc:  # pragma: no cover - defensive UI path
+            self._show_error(f"Failed to save metadata:\n{exc}")
+            return
+
+        self.filesChanged.emit()
+        self._show_info(f"Saved metadata for:\n{csv_path.name}")
+
+    # ===== Internal Data Loading =====
+    def _refresh_files(self, show_empty_message: bool) -> None:
+        selected_state = {
+            str(row.get("fileName", "")): bool(row.get("selected", False))
+            for row in self._files
+        }
+
+        self._files = []
+
+        if not self._current_directory.exists():
+            self.filesChanged.emit()
+            return
+
+        for csv_path in sorted(self._current_directory.glob("*.csv")):
+            try:
+                metadata = self._load_metadata(csv_path)
+                self._files.append(
+                    {
+                        "selected": selected_state.get(str(csv_path), False),
+                        "wafer": metadata.wafer,
+                        "date": metadata.string_date_format(),
+                        "chamber": metadata.chamber,
+                        "notes": metadata.notes,
+                        "fileName": str(csv_path),
+                        "highlight": metadata.get_wafer_type() in {"A", "B", "C"},
+                    }
+                )
+            except Exception:
+                self._files.append(
+                    {
+                        "selected": selected_state.get(str(csv_path), False),
+                        "wafer": csv_path.stem,
+                        "date": "",
+                        "chamber": "",
+                        "notes": "Unable to parse metadata",
+                        "fileName": str(csv_path),
+                        "highlight": False,
+                    }
+                )
+
+        self.filesChanged.emit()
+
+        if show_empty_message and not self._files:
+            self._show_info("No CSV files were found in the selected folder.")
+
+    def _load_metadata(self, csv_path: Path) -> CSVFileMetadata:
+        sidecar_path = self._sidecar_path(csv_path)
+        if sidecar_path.exists():
+            try:
+                payload = json.loads(sidecar_path.read_text(encoding="utf-8"))
+                return CSVFileMetadata(
+                    wafer=str(payload.get("wafer", "")),
+                    date=str(payload.get("date", "")),
+                    chamber=str(payload.get("chamber", "")),
+                    notes=str(payload.get("notes", "")),
+                    filename=str(csv_path),
+                )
+            except Exception:
+                # Fall back to CSV/header parsing if sidecar is malformed.
+                pass
+
+        parser_data, _ = self._parser.parse(str(csv_path))
+        if parser_data is not None:
+            wafer = parser_data.serial or ""
+            date_text = ""
+            if parser_data.date != datetime.min:
+                date_text = CSVFileMetadata.format_date(parser_data.date)
+            return CSVFileMetadata(
+                wafer=wafer,
+                date=date_text,
+                chamber="",
+                notes="",
+                filename=str(csv_path),
+            )
+
+        return self._metadata_from_filename(csv_path)
+
+    def _metadata_from_filename(self, csv_path: Path) -> CSVFileMetadata:
+        match = re.match(
+            r"^(?P<wafer>[^-]+)-(?P<date>\d{8})(?:_(?P<run>\d+))?$",
+            csv_path.stem,
+        )
+        if not match:
+            return CSVFileMetadata(filename=str(csv_path))
+
+        date_text = ""
+        try:
+            parsed = datetime.strptime(match.group("date"), "%Y%m%d")
+            date_text = CSVFileMetadata.format_date(parsed)
+        except ValueError:
+            date_text = ""
+
+        return CSVFileMetadata(
+            wafer=match.group("wafer"),
+            date=date_text,
+            filename=str(csv_path),
+        )
+
+    # ===== Internal Helpers =====
+    def _resolve_default_directory(self) -> Path:
+        documents_dir = QStandardPaths.writableLocation(
+            QStandardPaths.DocumentsLocation
+        )
+        base_dir = Path(documents_dir) if documents_dir else (Path.home() / "Documents")
+        return base_dir / "isc_data"
+
+    def _set_current_directory(self, directory: Path) -> None:
+        normalized = Path(directory)
+        if normalized == self._current_directory:
+            return
+        self._current_directory = normalized
+        self.currentDirectoryChanged.emit()
+
+    def _find_row(self, file_path: str) -> dict[str, object] | None:
+        for row in self._files:
+            if str(row.get("fileName", "")) == file_path:
+                return row
+        return None
+
+    def _sidecar_path(self, csv_path: Path) -> Path:
+        return csv_path.with_suffix(f"{csv_path.suffix}.json")
+
+    def _show_error(self, message: str) -> None:
+        QMessageBox.critical(None, "iSenseCloud", message)
+
+    def _show_info(self, message: str) -> None:
+        QMessageBox.information(None, "iSenseCloud", message)
+
+
+# Backward-compatible alias while the QML dialog is still named SelectFileDialog.
+SelectFileDialogModel = FileBrowser

main.py

@@ -1,16 +1,36 @@
 import sys
 from pathlib import Path
 
-from PySide6.QtGui import QGuiApplication
 from PySide6.QtQml import QQmlApplicationEngine
+from PySide6.QtQuickControls2 import QQuickStyle
+from PySide6.QtWidgets import QApplication
 
+from backend.local_settings_model import LocalSettingsModel
+from backend.file_browser import FileBrowser
+
+# ===== Application Entry Point =====
 if __name__ == "__main__":
+    # ===== UI Style Setup =====
+    # Use a non-native controls style so our custom QML button backgrounds are supported.
+    QQuickStyle.setStyle("Basic")
+
+    # ===== Qt Bootstrap =====
     # Minimal Qt bootstrap: load the ISC QML module and exit if it fails.
-    app = QGuiApplication(sys.argv)
+    app = QApplication(sys.argv)
     engine = QQmlApplicationEngine()
+
+    # ===== Shared Models =====
+    settings_model = LocalSettingsModel()
+    select_file_dialog_model = FileBrowser()
+    settings_model.loadSettings()
+    engine.rootContext().setContextProperty("settingsModel", settings_model)
+    engine.rootContext().setContextProperty("file_browser", select_file_dialog_model)
+
+    # ===== QML Startup =====
     engine.addImportPath(Path(__file__).parent)
     engine.loadFromModule("ISC", "Main")
 
+    # ===== Exit Handling =====
     if not engine.rootObjects():
         sys.exit(-1)
 

pyproject.toml

@@ -4,4 +4,5 @@ name = "PySide QtQuick Project"
 
 # ===== PySide Build Inputs =====
 [tool.pyside6-project]
-files = ["ISC/HomePage.qml", "ISC/Main.qml", "ISC/Theme.qml", "ISC/Tabs/SettingsTab.qml", "ISC/Tabs/qmldir", "ISC/qmldir", "main.py", "backend/local_settings.py", "backend/local_settings_model.py"]
+files = ["ISC/HomePage.qml", "ISC/Main.qml", "ISC/Tabs/SelectFileDialog.qml", "ISC/Tabs/SettingsTab.qml", "ISC/Tabs/qmldir", "ISC/Theme.qml", "ISC/qmldir", "backend/file_browser.py", "backend/local_settings.py", "backend/local_settings_model.py", "main.py"]
+∑