orkmode/ui/qml/OutlineView.qml

import QtQuick
import QtQuick.Controls
import QtQuick.Layouts

// A folding outline of a document's sections. Each row renders the section
// headline as distinct structural objects (keyword, priority, title, tags,
// timestamps) followed by the section body, always visible inline — the
// document is the control surface.
TreeView {
    id: tree
    clip: true

    // Force TreeView to calculate row heights per-row instead of using a fixed height
    rowHeightProvider: function(row) { return -1 }  // -1 means "use delegate's implicitHeight"

    readonly property int rowPad: 6
    readonly property int baseFontSize: theme.fontSize > 0 ? theme.fontSize : 12

    // Palette for TODO keywords by state.
    function keywordColor(kw) {
        switch (kw) {
        case "TODO":      return theme.todoColor
        case "NEXT":      return theme.todoColor
        case "WAITING":   return theme.waitingColor
        case "DONE":      return theme.doneColor
        case "CANCELLED": return theme.cancelledColor
        default:          return theme.linkColor
        }
    }

    // Priority color by level.
    function priorityColor(pri) {
        switch (pri) {
        case "A": return theme.priorityAColor
        case "B": return theme.priorityBColor
        case "C": return theme.priorityCColor
        default:  return theme.textColor
        }
    }

    // Headline text scales down slightly with depth.
    function levelFontSize(level) {
        return Math.max(tree.baseFontSize - 1, tree.baseFontSize + 5 - level)
    }

    selectionModel: ItemSelectionModel {}

    delegate: TreeViewDelegate {
        id: del
        indentation: 18

        readonly property string sectionBody: (model.body ?? "").trim()
        readonly property int bodyIndent: 12

        implicitWidth: tree.width
        implicitHeight: contentColumn.implicitHeight

        background: Rectangle {
            color: del.current ? theme.highlightColor : "transparent"
            opacity: del.current ? 0.2 : 1.0
            radius: 4
        }

        contentItem: ColumnLayout {
            id: contentColumn
            spacing: 4

            RowLayout {
                id: headlineRow
                Layout.fillWidth: true
                Layout.topMargin: tree.rowPad
                spacing: 8

                // TODO keyword pill.
                Rectangle {
                    visible: (model.keyword ?? "") !== ""
                    radius: 3
                    color: "transparent"
                    border.color: tree.keywordColor(model.keyword ?? "")
                    border.width: 1
                    implicitWidth: kwLabel.implicitWidth + 10
                    implicitHeight: kwLabel.implicitHeight + 4
                    Label {
                        id: kwLabel
                        anchors.centerIn: parent
                        text: model.keyword ?? ""
                        color: tree.keywordColor(model.keyword ?? "")
                        font.pointSize: tree.baseFontSize - 1
                        font.bold: true
                    }
                }

                // Priority cookie.
                Label {
                    visible: (model.priority ?? "") !== ""
                    text: "[#" + (model.priority ?? "") + "]"
                    color: tree.priorityColor(model.priority ?? "")
                    font.pointSize: tree.baseFontSize
                    font.bold: true
                }

                // Title.
                Label {
                    text: (model.title ?? "")
                    color: (model.isDone ?? false) ? theme.placeholderTextColor : theme.textColor
                    font.pointSize: tree.levelFontSize(model.level ?? 1)
                    font.strikeout: (model.isDone ?? false)
                    elide: Text.ElideRight
                    Layout.fillWidth: true
                }

                // Scheduled / deadline stamps.
                Label {
                    visible: (model.scheduled ?? "") !== ""
                    text: "⏱ " + (model.scheduled ?? "")
                    color: theme.timestampColor
                    font.pointSize: tree.baseFontSize - 1
                }
                Label {
                    visible: (model.deadline ?? "") !== ""
                    text: "⚑ " + (model.deadline ?? "")
                    color: theme.deadlineColor
                    font.pointSize: tree.baseFontSize - 1
                }

                // Tags.
                Repeater {
                    model: del.model.tags ?? []
                    delegate: Rectangle {
                        required property string modelData
                        radius: 3
                        color: theme.alternateBaseColor
                        implicitWidth: tagLabel.implicitWidth + 8
                        implicitHeight: tagLabel.implicitHeight + 3
                        Label {
                            id: tagLabel
                            anchors.centerIn: parent
                            text: parent.modelData
                            color: theme.tagColor
                            font.pointSize: tree.baseFontSize - 2
                        }
                    }
                }
            }

            // Body row with left rule.
            RowLayout {
                visible: del.sectionBody !== ""
                Layout.fillWidth: true
                Layout.bottomMargin: tree.rowPad
                spacing: 8

                // Left rule marking the body region.
                Rectangle {
                    width: 2
                    Layout.fillHeight: true
                    Layout.leftMargin: 2
                    color: theme.midColor
                }

                // Section body text.
                Text {
                    id: bodyLabel
                    Layout.fillWidth: true
                    Layout.leftMargin: del.bodyIndent - 10
                    text: del.sectionBody
                    color: theme.placeholderTextColor
                    font.pointSize: tree.baseFontSize
                    lineHeight: 1.15
                    wrapMode: Text.WordWrap
                    textFormat: Text.PlainText
                }
            }
        }
    }
}