aboutsummaryrefslogtreecommitdiffstats
path: root/src/plugins/clangcodemodel/clangpreprocessorassistproposalitem.cpp
blob: 961d581f9f2f7cf1d8389ce40b195f6458a249c3 (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
134
135
136
137
138
139
140
141
142
143
144
// 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

#include "clangpreprocessorassistproposalitem.h"

#include <texteditor/texteditor.h>

#include <cplusplus/Token.h>

namespace ClangCodeModel {
namespace Internal {

bool ClangPreprocessorAssistProposalItem::prematurelyApplies(const QChar &typedCharacter) const
{
    bool applies = false;

    if (isInclude())
        applies = typedCharacter == QLatin1Char('/') && text().endsWith(QLatin1Char('/'));

    if (applies)
        m_typedCharacter = typedCharacter;

    return applies;
}

bool ClangPreprocessorAssistProposalItem::implicitlyApplies() const
{
    return true;
}

void ClangPreprocessorAssistProposalItem::apply(TextEditor::TextDocumentManipulatorInterface &manipulator,
                                                int basePosition) const
{
    // TODO move in an extra class under tests

    QString textToBeInserted = text();

    QString extraCharacters;
    int extraLength = 0;

    if (isInclude()) {
        if (!textToBeInserted.endsWith(QLatin1Char('/'))) {
            extraCharacters += QLatin1Char((m_completionOperator == CPlusPlus::T_ANGLE_STRING_LITERAL) ? '>' : '"');
        } else {
            if (m_typedCharacter == QLatin1Char('/')) // Eat the slash
                m_typedCharacter = QChar();
        }
    }

    if (!m_typedCharacter.isNull())
        extraCharacters += m_typedCharacter;

    // Avoid inserting characters that are already there
    const int endsPosition = manipulator.positionAt(TextEditor::EndOfLinePosition);
    const QString existingText = manipulator.textAt(manipulator.currentPosition(), endsPosition - manipulator.currentPosition());
    int existLength = 0;
    if (!existingText.isEmpty()) {
        // Calculate the exist length in front of the extra chars
        existLength = textToBeInserted.length() - (manipulator.currentPosition() - basePosition);
        while (!existingText.startsWith(textToBeInserted.right(existLength))) {
            if (--existLength == 0)
                break;
        }
    }
    for (int i = 0; i < extraCharacters.length(); ++i) {
        const QChar a = extraCharacters.at(i);
        const QChar b = manipulator.characterAt(manipulator.currentPosition() + i + existLength);
        if (a == b)
            ++extraLength;
        else
            break;
    }

    textToBeInserted += extraCharacters;

    // Insert the remainder of the name
    const int length = manipulator.currentPosition() - basePosition + existLength + extraLength;

    manipulator.replace(basePosition, length, textToBeInserted);
}

void ClangPreprocessorAssistProposalItem::setText(const QString &text)
{
    m_text = text;
}

QString ClangPreprocessorAssistProposalItem::text() const
{
    return m_text;
}

void ClangPreprocessorAssistProposalItem::setIcon(const QIcon &icon)
{
    m_icon = icon;
}

QIcon ClangPreprocessorAssistProposalItem::icon() const
{
    return m_icon;
}

void ClangPreprocessorAssistProposalItem::setDetail(const QString &detail)
{
    m_detail = detail;
}

QString ClangPreprocessorAssistProposalItem::detail() const
{
    return QString();
}

Qt::TextFormat ClangPreprocessorAssistProposalItem::detailFormat() const
{
    return Qt::RichText;
}

bool ClangPreprocessorAssistProposalItem::isSnippet() const
{
    return false;
}

bool ClangPreprocessorAssistProposalItem::isValid() const
{
    return true;
}

quint64 ClangPreprocessorAssistProposalItem::hash() const
{
    return 0;
}

void ClangPreprocessorAssistProposalItem::setCompletionOperator(uint completionOperator)
{
    m_completionOperator = completionOperator;
}

bool ClangPreprocessorAssistProposalItem::isInclude() const
{
    return m_completionOperator == CPlusPlus::T_STRING_LITERAL
        || m_completionOperator == CPlusPlus::T_ANGLE_STRING_LITERAL;
}

} // namespace Internal
} // namespace ClangCodeModel