1// Copyright (C) 2016 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#ifndef QQUICKTEXTEDIT_P_P_H
5#define QQUICKTEXTEDIT_P_P_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists purely as an
12// implementation detail. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include "qquicktextedit_p.h"
19#include "qquickimplicitsizeitem_p_p.h"
20#include "qquicktextutil_p.h"
21
22#include <QtQuick/private/qquicktextselection_p.h>
23
24#include <QtQml/qqml.h>
25#include <QtCore/qlist.h>
26#include <private/qlazilyallocated_p.h>
27#include <private/qquicktextdocument_p.h>
28
29#if QT_CONFIG(accessibility)
30#include <QtGui/qaccessible.h>
31#endif
32
33#include <limits>
34
35QT_BEGIN_NAMESPACE
36class QTextLayout;
37class QQuickPixmap;
38class QQuickTextControl;
39class QSGInternalTextNode;
40class QQuickTextNodeEngine;
41
42class Q_QUICK_EXPORT QQuickTextEditPrivate : public QQuickImplicitSizeItemPrivate
43#if QT_CONFIG(accessibility)
44 , public QAccessible::ActivationObserver
45#endif
46{
47public:
48 Q_DECLARE_PUBLIC(QQuickTextEdit)
49
50 typedef QQuickTextEdit Public;
51
52 struct Node {
53 explicit Node(int startPos = std::numeric_limits<int>::max(),
54 QSGInternalTextNode *node = nullptr)
55 : m_node(node), m_startPos(startPos) { }
56 QSGInternalTextNode *textNode() const { return m_node; }
57 void moveStartPos(int delta) { Q_ASSERT(m_startPos + delta > 0); m_startPos += delta; }
58 int startPos() const { return m_startPos; }
59 void setDirty() { m_dirty = true; }
60 bool dirty() const { return m_dirty; }
61
62 private:
63 QSGInternalTextNode *m_node;
64 int m_startPos;
65 bool m_dirty = false;
66
67#ifndef QT_NO_DEBUG_STREAM
68 friend QDebug Q_QUICK_EXPORT operator<<(QDebug, const Node &);
69#endif
70 };
71 typedef QList<Node>::iterator TextNodeIterator;
72
73 struct ExtraData {
74 ExtraData();
75
76 qreal padding = 0;
77 qreal topPadding = 0;
78 qreal leftPadding = 0;
79 qreal rightPadding = 0;
80 qreal bottomPadding = 0;
81 bool explicitTopPadding : 1;
82 bool explicitLeftPadding : 1;
83 bool explicitRightPadding : 1;
84 bool explicitBottomPadding : 1;
85 bool implicitResize : 1;
86 };
87 QLazilyAllocated<ExtraData> extra;
88
89
90 QQuickTextEditPrivate()
91 : dirty(false), richText(false), cursorVisible(false), cursorPending(false)
92 , focusOnPress(true), persistentSelection(false), requireImplicitWidth(false)
93 , selectByMouse(true), canPaste(false), canPasteValid(false), hAlignImplicit(true)
94 , textCached(true), inLayout(false), selectByKeyboard(false), selectByKeyboardSet(false)
95 , hadSelection(false), markdownText(false), inResize(false), ownsDocument(false)
96 , containsUnscalableGlyphs(false)
97 {
98#if QT_CONFIG(accessibility)
99 QAccessible::installActivationObserver(this);
100#endif
101 }
102
103 ~QQuickTextEditPrivate()
104 {
105#if QT_CONFIG(accessibility)
106 QAccessible::removeActivationObserver(this);
107#endif
108 }
109
110 static QQuickTextEditPrivate *get(QQuickTextEdit *item) {
111 return static_cast<QQuickTextEditPrivate *>(QObjectPrivate::get(o: item)); }
112
113 void init();
114
115 void resetInputMethod();
116 void updateDefaultTextOption();
117 void onDocumentStatusChanged();
118 void relayoutDocument();
119 bool determineHorizontalAlignment();
120 bool setHAlign(QQuickTextEdit::HAlignment, bool forceAlign = false);
121 void mirrorChange() override;
122 bool transformChanged(QQuickItem *transformedItem) override;
123 qreal getImplicitWidth() const override;
124 Qt::LayoutDirection textDirection(const QString &text) const;
125 bool isLinkHoveredConnected();
126
127#if QT_CONFIG(cursor)
128 void updateMouseCursorShape();
129#endif
130
131 void setNativeCursorEnabled(bool) {}
132 void handleFocusEvent(QFocusEvent *event);
133 void addCurrentTextNodeToRoot(QQuickTextNodeEngine *, QSGTransformNode *, QSGInternalTextNode *, TextNodeIterator&, int startPos);
134 QSGInternalTextNode* createTextNode();
135
136#if QT_CONFIG(im)
137 Qt::InputMethodHints effectiveInputMethodHints() const;
138#endif
139
140#if QT_CONFIG(accessibility)
141 void accessibilityActiveChanged(bool active) override;
142 QAccessible::Role accessibleRole() const override;
143#endif
144
145 inline qreal padding() const { return extra.isAllocated() ? extra->padding : 0.0; }
146 void setTopPadding(qreal value, bool reset = false);
147 void setLeftPadding(qreal value, bool reset = false);
148 void setRightPadding(qreal value, bool reset = false);
149 void setBottomPadding(qreal value, bool reset = false);
150
151 bool isImplicitResizeEnabled() const;
152 void setImplicitResizeEnabled(bool enabled);
153
154 QColor color = QRgb(0xFF000000);
155 QColor selectionColor = QRgb(0xFF000080);
156 QColor selectedTextColor = QRgb(0xFFFFFFFF);
157
158 QSizeF contentSize;
159
160 qreal textMargin = 0;
161 qreal xoff = 0;
162 qreal yoff = 0;
163
164 QString text;
165 QUrl baseUrl;
166 QFont sourceFont;
167 QFont font;
168
169 QQmlComponent* cursorComponent = nullptr;
170 QQuickItem* cursorItem = nullptr;
171 QTextDocument *document = nullptr;
172 QQuickTextControl *control = nullptr;
173 QQuickTextDocument *quickDocument = nullptr;
174 mutable QQuickTextSelection *cursorSelection = nullptr;
175 QList<Node> textNodeMap;
176 QList<QQuickPixmap *> pixmapsInProgress;
177
178 int lastSelectionStart = 0;
179 int lastSelectionEnd = 0;
180 int lineCount = 0;
181 int firstBlockInViewport = -1; // can be wrong after scrolling sometimes
182 int firstBlockPastViewport = -1; // only for the autotest
183 int renderedBlockCount = -1; // only for the autotest
184 QRectF renderedRegion;
185
186 enum UpdateType {
187 UpdateNone,
188 UpdateOnlyPreprocess,
189 UpdatePaintNode,
190 UpdateAll
191 };
192
193 QQuickTextEdit::HAlignment hAlign = QQuickTextEdit::AlignLeft;
194 QQuickTextEdit::VAlignment vAlign = QQuickTextEdit::AlignTop;
195 QQuickTextEdit::TextFormat format = QQuickTextEdit::PlainText;
196 QQuickTextEdit::WrapMode wrapMode = QQuickTextEdit::NoWrap;
197 QQuickTextEdit::RenderType renderType = QQuickTextUtil::textRenderType<QQuickTextEdit>();
198 Qt::LayoutDirection contentDirection = Qt::LayoutDirectionAuto;
199 QQuickTextEdit::SelectionMode mouseSelectionMode = QQuickTextEdit::SelectCharacters;
200#if QT_CONFIG(im)
201 Qt::InputMethodHints inputMethodHints = Qt::ImhNone;
202#endif
203 UpdateType updateType = UpdatePaintNode;
204
205 bool dirty : 1;
206 bool richText : 1;
207 bool cursorVisible : 1;
208 bool cursorPending : 1;
209 bool focusOnPress : 1;
210 bool persistentSelection : 1;
211 bool requireImplicitWidth:1;
212 bool selectByMouse:1;
213 bool canPaste:1;
214 bool canPasteValid:1;
215 bool hAlignImplicit:1;
216 bool textCached:1;
217 bool inLayout:1;
218 bool selectByKeyboard:1;
219 bool selectByKeyboardSet:1;
220 bool hadSelection : 1;
221 bool markdownText : 1;
222 bool inResize : 1;
223 bool ownsDocument : 1;
224 bool containsUnscalableGlyphs : 1;
225
226 static const int largeTextSizeThreshold;
227};
228
229#ifndef QT_NO_DEBUG_STREAM
230QDebug Q_QUICK_EXPORT operator<<(QDebug debug, const QQuickTextEditPrivate::Node &);
231#endif
232
233QT_END_NAMESPACE
234
235#endif // QQUICKTEXTEDIT_P_P_H
236

source code of qtdeclarative/src/quick/items/qquicktextedit_p_p.h