feat: Add agents pipelines

sources/settings/AgentSelectionDialog.hpp

@@ -0,0 +1,182 @@
+// Copyright (C) 2026 Petr Mironychev
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <QDialog>
+#include <QFont>
+#include <QFrame>
+#include <QLabel>
+#include <QPalette>
+#include <QStringList>
+#include <vector>
+
+#include <AgentConfig.hpp>
+
+class QLineEdit;
+class QPushButton;
+class QScrollArea;
+class QVBoxLayout;
+
+namespace QodeAssist {
+class AgentFactory;
+}
+
+namespace QodeAssist::Settings {
+
+namespace CardStyle {
+
+struct Tone
+{
+    QString bg;
+    QString hoverBg;
+    QString selectedBg;
+    QString selectedBd;
+    QString cardBd;
+    QString textSoft;
+    QString textMute;
+    QString textFaint;
+};
+
+inline bool isDark(const QPalette &p)
+{
+    return p.color(QPalette::Window).lightness() < 128;
+}
+
+inline Tone toneFor(bool dark)
+{
+    return dark
+        ? Tone{"#333333", "#3a3a3a", "#2a4566", "#3a6fb7", "#4a4a4a",
+               "#c2c2c2", "#9a9a9a", "#7a7a7a"}
+        : Tone{"#f6f6f6", "#ececec", "#cfe1f7", "#3a6fb7", "#bdbdbd",
+               "#3a3a3a", "#5a5a5a", "#8a8a8a"};
+}
+
+inline QFont monoFont(int pixelSize)
+{
+    QFont f;
+    f.setFamilies({QStringLiteral("SF Mono"),
+                   QStringLiteral("Cascadia Code"),
+                   QStringLiteral("Consolas"),
+                   QStringLiteral("Liberation Mono"),
+                   QStringLiteral("Menlo"),
+                   QStringLiteral("Courier New")});
+    f.setStyleHint(QFont::Monospace);
+    f.setPixelSize(pixelSize);
+    return f;
+}
+
+inline void applySectionFont(QLabel *l)
+{
+    QFont f = l->font();
+    f.setPointSizeF(f.pointSizeF() * 0.85);
+    f.setBold(true);
+    f.setCapitalization(QFont::AllUppercase);
+    f.setLetterSpacing(QFont::AbsoluteSpacing, 0.5);
+    l->setFont(f);
+    QPalette p = l->palette();
+    p.setColor(QPalette::WindowText, p.color(QPalette::Mid));
+    l->setPalette(p);
+}
+
+} // namespace CardStyle
+
+class ListRowCard : public QFrame
+{
+    Q_OBJECT
+public:
+    QString itemName() const { return m_itemName; }
+    bool matches(const QString &needle) const;
+    void setSelected(bool selected);
+    bool isSelected() const { return m_selected; }
+
+signals:
+    void clicked();
+    void activated();
+
+protected:
+    explicit ListRowCard(QWidget *parent = nullptr);
+
+    void setItemName(const QString &name) { m_itemName = name; }
+    void buildSearchHaystack(const QStringList &parts);
+
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseDoubleClickEvent(QMouseEvent *event) override;
+    void enterEvent(QEnterEvent *event) override;
+    void leaveEvent(QEvent *event) override;
+    void changeEvent(QEvent *event) override;
+
+private:
+    void applyTheme();
+
+    QString m_itemName;
+    QString m_searchHaystack;
+    bool m_selected = false;
+    bool m_hover = false;
+    bool m_inApplyTheme = false;
+};
+
+class AgentRowCard : public ListRowCard
+{
+    Q_OBJECT
+public:
+    explicit AgentRowCard(const AgentConfig &cfg, QWidget *parent = nullptr);
+
+    QString agentName() const { return itemName(); }
+};
+
+class ProviderSection : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit ProviderSection(const QString &name, QWidget *parent = nullptr);
+
+    void addCard(ListRowCard *card);
+    void setExpanded(bool expanded);
+    bool isExpanded() const { return m_expanded; }
+    const QList<ListRowCard *> &cards() const { return m_cards; }
+
+    int applyFilter(const QString &needle); // returns number of visible cards
+
+protected:
+    bool eventFilter(QObject *watched, QEvent *event) override;
+
+private:
+    QFrame *m_header = nullptr;
+    QLabel *m_arrow = nullptr;
+    QLabel *m_label = nullptr;
+    QWidget *m_content = nullptr;
+    QVBoxLayout *m_contentLayout = nullptr;
+    QList<ListRowCard *> m_cards;
+    bool m_expanded = true;
+};
+
+class AgentSelectionDialog : public QDialog
+{
+    Q_OBJECT
+public:
+    AgentSelectionDialog(
+        const std::vector<AgentConfig> &configs,
+        const QString &currentName,
+        AgentFactory *agentFactory = nullptr,
+        QWidget *parent = nullptr);
+
+    QString selectedName() const { return m_selectedName; }
+
+private:
+    void rebuild(const QString &currentName);
+    void selectCard(ListRowCard *card);
+    void applyFilter(const QString &needle);
+
+    QLineEdit *m_filter = nullptr;
+    QScrollArea *m_scroll = nullptr;
+    QPushButton *m_okButton = nullptr;
+    ListRowCard *m_currentCard = nullptr;
+    QList<ProviderSection *> m_sections;
+    QString m_selectedName;
+
+    AgentFactory *m_agentFactory = nullptr;
+    std::vector<AgentConfig> m_localConfigs; // fallback when no factory
+};
+
+} // namespace QodeAssist::Settings