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
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#pragma once
#include <QObject>
#include <QList>
#include <QVector>
#include <QTextCursor>
#include <QColor>
QT_FORWARD_DECLARE_CLASS(QWidget)
QT_FORWARD_DECLARE_CLASS(QPainterPath)
namespace TextEditor {
class NameMangler;
class TextEditorWidget;
namespace Internal {
struct OverlaySelection
{
OverlaySelection() = default;
QTextCursor m_cursor_begin;
QTextCursor m_cursor_end;
QColor m_fg;
QColor m_bg;
int m_fixedLength = -1;
bool m_dropShadow = false;
};
class TextEditorOverlay : public QObject
{
Q_OBJECT
public:
TextEditorOverlay(TextEditorWidget *editor);
QRect rect() const;
void paint(QPainter *painter, const QRect &clip);
void fill(QPainter *painter, const QColor &color, const QRect &clip);
bool isVisible() const { return m_visible; }
void setVisible(bool b);
inline void hide() { setVisible(false); }
inline void show() { setVisible(true); }
void setBorderWidth(int bw) {m_borderWidth = bw; }
void update();
void setAlpha(bool enabled) { m_alpha = enabled; }
virtual void clear();
enum OverlaySelectionFlags {
LockSize = 1,
DropShadow = 2,
ExpandBegin = 4
};
void addOverlaySelection(const QTextCursor &cursor, const QColor &fg, const QColor &bg,
uint overlaySelectionFlags = 0);
void addOverlaySelection(int begin, int end, const QColor &fg, const QColor &bg,
uint overlaySelectionFlags = 0);
const QList<OverlaySelection> &selections() const { return m_selections; }
inline bool isEmpty() const { return m_selections.isEmpty(); }
inline int dropShadowWidth() const { return m_dropShadowWidth; }
bool hasCursorInSelection(const QTextCursor &cursor) const;
bool hasFirstSelectionBeginMoved() const;
protected:
int selectionIndexForCursor(const QTextCursor &cursor) const;
QString selectionText(int selectionIndex) const;
QTextCursor assembleCursorForSelection(int selectionIndex) const;
private:
QPainterPath createSelectionPath(const QTextCursor &begin, const QTextCursor &end, const QRect& clip);
void paintSelection(QPainter *painter, const OverlaySelection &selection);
void fillSelection(QPainter *painter, const OverlaySelection &selection, const QColor &color);
bool m_visible;
bool m_alpha;
int m_borderWidth;
int m_dropShadowWidth;
int m_firstSelectionOriginalBegin;
TextEditorWidget *m_editor;
QWidget *m_viewport;
QList<OverlaySelection> m_selections;
};
class SnippetOverlay : public TextEditorOverlay
{
public:
using TextEditorOverlay::TextEditorOverlay;
void clear() override;
void mapEquivalentSelections();
void updateEquivalentSelections(const QTextCursor &cursor);
void setNameMangler(const QList<NameMangler *> &manglers);
void mangle();
private:
QVector<QList<int> > m_equivalentSelections;
QList<NameMangler *> m_manglers;
};
} // namespace Internal
} // namespace TextEditor
|
