aboutsummaryrefslogtreecommitdiffstats
path: root/src/libs/utils/basetreeview.h
blob: 184c4ae48c6499e892da22e3dfdd96b29998b773 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0

#pragma once

#include "utils_global.h"

#include "itemviews.h"

QT_BEGIN_NAMESPACE
class QSettings;
QT_END_NAMESPACE

namespace Utils {

namespace Internal { class BaseTreeViewPrivate; }

class QTCREATOR_UTILS_EXPORT BaseTreeView : public TreeView
{
    Q_OBJECT

public:
    enum {
        ExtraIndicesForColumnWidth = 12734,

        ItemViewEventRole = Qt::UserRole + 12735,

        ItemActivatedRole,
        ItemClickedRole,

        ItemDelegateRole,
    };

    BaseTreeView(QWidget *parent = nullptr);
    ~BaseTreeView() override;

    void setSettings(QSettings *settings, const QByteArray &key);

    void setModel(QAbstractItemModel *model) override;
    void mousePressEvent(QMouseEvent *ev) override;
    void mouseMoveEvent(QMouseEvent *ev) override;
    void mouseReleaseEvent(QMouseEvent *ev) override;
    void contextMenuEvent(QContextMenuEvent *ev) override;
    void showEvent(QShowEvent *ev) override;
    void keyPressEvent(QKeyEvent *ev) override;
    void dragEnterEvent(QDragEnterEvent *ev) override;
    void dropEvent(QDropEvent *ev) override;
    void dragMoveEvent(QDragMoveEvent *ev) override;
    void mouseDoubleClickEvent(QMouseEvent *ev) override;
    void resizeEvent(QResizeEvent *event) override;

    void showProgressIndicator();
    void hideProgressIndicator();
    void resizeColumns();

    int spanColumn() const;
    void setSpanColumn(int column);

    void enableColumnHiding();

    // In some situations this needs to be called when manually resizing columns when the span
    // column is set.
    void refreshSpanColumn();

signals:
    void aboutToShow();

private:
    void rowActivated(const QModelIndex &index);
    void rowClicked(const QModelIndex &index);

    Internal::BaseTreeViewPrivate *d;
};

template <typename Event> struct EventCode;
template <> struct EventCode<QDragEnterEvent> { enum { code = QEvent::DragEnter }; };
template <> struct EventCode<QDragLeaveEvent> { enum { code = QEvent::DragLeave }; };
template <> struct EventCode<QDragMoveEvent> { enum { code = QEvent::DragMove }; };
template <> struct EventCode<QDropEvent> { enum { code = QEvent::Drop }; };
template <> struct EventCode<QContextMenuEvent> { enum { code = QEvent::ContextMenu }; };
template <> struct EventCode<QMouseEvent> { enum { code = QEvent::MouseButtonPress }; };
template <> struct EventCode<QKeyEvent> { enum { code = QEvent::KeyPress }; };

template <class T> T *checkEventType(QEvent *ev)
{
    const int cc = EventCode<T>::code;
    const int tt = ev->type();
    if (cc == tt)
        return static_cast<T *>(ev);
    if (cc == QEvent::MouseButtonPress) {
        if (tt == QEvent::MouseButtonDblClick || tt == QEvent::MouseButtonRelease || tt == QEvent::MouseMove)
            return static_cast<T *>(ev);
    }
    if (cc == QEvent::KeyPress && tt == QEvent::KeyRelease)
        return static_cast<T *>(ev);
    return nullptr;
}

class QTCREATOR_UTILS_EXPORT ItemViewEvent
{
public:
    ItemViewEvent() = default;
    ItemViewEvent(QEvent *ev, QAbstractItemView *view);

    template <class T> T *as() const {
        return checkEventType<T>(m_event);
    }

    template <class T> T *as(QEvent::Type t) const {
        return m_event->type() == t ? as<T>() : nullptr;
    }

    QEvent::Type type() const { return m_event->type(); }
    QWidget *view() const { return m_view; }
    QPoint pos() const { return m_pos; }
    QPoint globalPos() const { return m_view->mapToGlobal(m_pos); }
    QModelIndex index() const { return m_index; }
    QModelIndex sourceModelIndex() const { return m_sourceModelIndex; }
    QModelIndexList selectedRows() const { return m_selectedRows; }
    QModelIndexList currentOrSelectedRows() const;

private:
    QEvent *m_event = nullptr;
    QWidget *m_view = nullptr;
    QPoint m_pos;
    QModelIndex m_index;
    QModelIndex m_sourceModelIndex;
    QModelIndexList m_selectedRows;
};

} // namespace Utils

Q_DECLARE_METATYPE(Utils::ItemViewEvent);