summaryrefslogtreecommitdiffstats
path: root/src/quick/items/qquicktext_p.h
blob: c3fa9e6935195295104dd3d64428ef015c33a80b (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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QQUICKTEXT_P_H
#define QQUICKTEXT_P_H

#include "qquickimplicitsizeitem_p.h"
#include <private/qtquickglobal_p.h>
#include <QtGui/qtextoption.h>

QT_BEGIN_NAMESPACE

class QQuickTextPrivate;
class QQuickTextLine;
class Q_QUICK_PRIVATE_EXPORT QQuickText : public QQuickImplicitSizeItem
{
    Q_OBJECT
    Q_ENUMS(HAlignment)
    Q_ENUMS(VAlignment)
    Q_ENUMS(TextStyle)
    Q_ENUMS(TextFormat)
    Q_ENUMS(TextElideMode)
    Q_ENUMS(WrapMode)
    Q_ENUMS(LineHeightMode)
    Q_ENUMS(FontSizeMode)
    Q_ENUMS(RenderType)

    Q_PROPERTY(QString text READ text WRITE setText NOTIFY textChanged)
    Q_PROPERTY(QFont font READ font WRITE setFont NOTIFY fontChanged)
    Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY colorChanged)
    Q_PROPERTY(QColor linkColor READ linkColor WRITE setLinkColor NOTIFY linkColorChanged)
    Q_PROPERTY(TextStyle style READ style WRITE setStyle NOTIFY styleChanged)
    Q_PROPERTY(QColor styleColor READ styleColor WRITE setStyleColor NOTIFY styleColorChanged)
    Q_PROPERTY(HAlignment horizontalAlignment READ hAlign WRITE setHAlign RESET resetHAlign NOTIFY horizontalAlignmentChanged)
    Q_PROPERTY(HAlignment effectiveHorizontalAlignment READ effectiveHAlign NOTIFY effectiveHorizontalAlignmentChanged)
    Q_PROPERTY(VAlignment verticalAlignment READ vAlign WRITE setVAlign NOTIFY verticalAlignmentChanged)
    Q_PROPERTY(WrapMode wrapMode READ wrapMode WRITE setWrapMode NOTIFY wrapModeChanged)
    Q_PROPERTY(int lineCount READ lineCount NOTIFY lineCountChanged)
    Q_PROPERTY(bool truncated READ truncated NOTIFY truncatedChanged)
    Q_PROPERTY(int maximumLineCount READ maximumLineCount WRITE setMaximumLineCount NOTIFY maximumLineCountChanged RESET resetMaximumLineCount)

    Q_PROPERTY(TextFormat textFormat READ textFormat WRITE setTextFormat NOTIFY textFormatChanged)
    Q_PROPERTY(TextElideMode elide READ elideMode WRITE setElideMode NOTIFY elideModeChanged) //### elideMode?
    Q_PROPERTY(qreal contentWidth READ contentWidth NOTIFY contentSizeChanged)
    Q_PROPERTY(qreal contentHeight READ contentHeight NOTIFY contentSizeChanged)
    Q_PROPERTY(qreal paintedWidth READ contentWidth NOTIFY contentSizeChanged)  // Compatibility
    Q_PROPERTY(qreal paintedHeight READ contentHeight NOTIFY contentSizeChanged)
    Q_PROPERTY(qreal lineHeight READ lineHeight WRITE setLineHeight NOTIFY lineHeightChanged)
    Q_PROPERTY(LineHeightMode lineHeightMode READ lineHeightMode WRITE setLineHeightMode NOTIFY lineHeightModeChanged)
    Q_PROPERTY(QUrl baseUrl READ baseUrl WRITE setBaseUrl RESET resetBaseUrl NOTIFY baseUrlChanged)
    Q_PROPERTY(int minimumPixelSize READ minimumPixelSize WRITE setMinimumPixelSize NOTIFY minimumPixelSizeChanged)
    Q_PROPERTY(int minimumPointSize READ minimumPointSize WRITE setMinimumPointSize NOTIFY minimumPointSizeChanged)
    Q_PROPERTY(FontSizeMode fontSizeMode READ fontSizeMode WRITE setFontSizeMode NOTIFY fontSizeModeChanged)
    Q_PROPERTY(RenderType renderType READ renderType WRITE setRenderType NOTIFY renderTypeChanged)
    Q_PROPERTY(QString hoveredLink READ hoveredLink NOTIFY linkHovered REVISION 2)

public:
    QQuickText(QQuickItem *parent=0);
    ~QQuickText();

    enum HAlignment { AlignLeft = Qt::AlignLeft,
                       AlignRight = Qt::AlignRight,
                       AlignHCenter = Qt::AlignHCenter,
                       AlignJustify = Qt::AlignJustify };
    enum VAlignment { AlignTop = Qt::AlignTop,
                       AlignBottom = Qt::AlignBottom,
                       AlignVCenter = Qt::AlignVCenter };
    enum TextStyle { Normal,
                      Outline,
                      Raised,
                      Sunken };
    enum TextFormat { PlainText = Qt::PlainText,
                       RichText = Qt::RichText,
                       AutoText = Qt::AutoText,
                       StyledText = 4 };
    enum TextElideMode { ElideLeft = Qt::ElideLeft,
                          ElideRight = Qt::ElideRight,
                          ElideMiddle = Qt::ElideMiddle,
                          ElideNone = Qt::ElideNone };

    enum WrapMode { NoWrap = QTextOption::NoWrap,
                    WordWrap = QTextOption::WordWrap,
                    WrapAnywhere = QTextOption::WrapAnywhere,
                    WrapAtWordBoundaryOrAnywhere = QTextOption::WrapAtWordBoundaryOrAnywhere, // COMPAT
                    Wrap = QTextOption::WrapAtWordBoundaryOrAnywhere
                  };

    enum RenderType { QtRendering,
                      NativeRendering
                    };

    enum LineHeightMode { ProportionalHeight, FixedHeight };

    enum FontSizeMode { FixedSize = 0x0, HorizontalFit = 0x01, VerticalFit = 0x02,
                        Fit = HorizontalFit | VerticalFit };

    QString text() const;
    void setText(const QString &);

    QFont font() const;
    void setFont(const QFont &font);

    QColor color() const;
    void setColor(const QColor &c);

    QColor linkColor() const;
    void setLinkColor(const QColor &color);

    TextStyle style() const;
    void setStyle(TextStyle style);

    QColor styleColor() const;
    void setStyleColor(const QColor &c);

    HAlignment hAlign() const;
    void setHAlign(HAlignment align);
    void resetHAlign();
    HAlignment effectiveHAlign() const;

    VAlignment vAlign() const;
    void setVAlign(VAlignment align);

    WrapMode wrapMode() const;
    void setWrapMode(WrapMode w);

    int lineCount() const;
    bool truncated() const;

    int maximumLineCount() const;
    void setMaximumLineCount(int lines);
    void resetMaximumLineCount();

    TextFormat textFormat() const;
    void setTextFormat(TextFormat format);

    TextElideMode elideMode() const;
    void setElideMode(TextElideMode);

    qreal lineHeight() const;
    void setLineHeight(qreal lineHeight);

    LineHeightMode lineHeightMode() const;
    void setLineHeightMode(LineHeightMode);


    QUrl baseUrl() const;
    void setBaseUrl(const QUrl &url);
    void resetBaseUrl();

    int minimumPixelSize() const;
    void setMinimumPixelSize(int size);

    int minimumPointSize() const;
    void setMinimumPointSize(int size);

    FontSizeMode fontSizeMode() const;
    void setFontSizeMode(FontSizeMode mode);

    virtual void componentComplete();

    int resourcesLoading() const; // mainly for testing

    qreal contentWidth() const;
    qreal contentHeight() const;

    QRectF boundingRect() const;
    QRectF clipRect() const;
    Q_INVOKABLE void doLayout();

    RenderType renderType() const;
    void setRenderType(RenderType renderType);

    QString hoveredLink() const;

    Q_REVISION(3) Q_INVOKABLE QString linkAt(qreal x, qreal y) const;

Q_SIGNALS:
    void textChanged(const QString &text);
    void linkActivated(const QString &link);
    Q_REVISION(2) void linkHovered(const QString &link);
    void fontChanged(const QFont &font);
    void colorChanged();
    void linkColorChanged();
    void styleChanged(TextStyle style);
    void styleColorChanged();
    void horizontalAlignmentChanged(HAlignment alignment);
    void verticalAlignmentChanged(VAlignment alignment);
    void wrapModeChanged();
    void lineCountChanged();
    void truncatedChanged();
    void maximumLineCountChanged();
    void textFormatChanged(TextFormat textFormat);
    void elideModeChanged(TextElideMode mode);
    void contentSizeChanged();
    void lineHeightChanged(qreal lineHeight);
    void lineHeightModeChanged(LineHeightMode mode);
    void fontSizeModeChanged();
    void minimumPixelSizeChanged();
    void minimumPointSizeChanged();
    void effectiveHorizontalAlignmentChanged();
    void lineLaidOut(QQuickTextLine *line);
    void baseUrlChanged();
    void renderTypeChanged();

protected:
    void mousePressEvent(QMouseEvent *event);
    void mouseReleaseEvent(QMouseEvent *event);
    virtual void itemChange(ItemChange change, const ItemChangeData &value);
    virtual void geometryChanged(const QRectF &newGeometry,
                                 const QRectF &oldGeometry);
    virtual QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *);

    void updatePolish();

    void hoverEnterEvent(QHoverEvent *event);
    void hoverMoveEvent(QHoverEvent *event);
    void hoverLeaveEvent(QHoverEvent *event);
    void invalidateFontCaches();

private Q_SLOTS:
    void q_imagesLoaded();
    void triggerPreprocess();
    void imageDownloadFinished();

private:
    Q_DISABLE_COPY(QQuickText)
    Q_DECLARE_PRIVATE(QQuickText)
};

class QTextLine;
class QQuickTextLine : public QObject
{
    Q_OBJECT
    Q_PROPERTY(int number READ number)
    Q_PROPERTY(qreal width READ width WRITE setWidth)
    Q_PROPERTY(qreal height READ height WRITE setHeight)
    Q_PROPERTY(qreal x READ x WRITE setX)
    Q_PROPERTY(qreal y READ y WRITE setY)

public:
    QQuickTextLine();

    void setLine(QTextLine* line);
    void setLineOffset(int offset);
    int number() const;

    qreal width() const;
    void setWidth(qreal width);

    qreal height() const;
    void setHeight(qreal height);

    qreal x() const;
    void setX(qreal x);

    qreal y() const;
    void setY(qreal y);

private:
    QTextLine *m_line;
    qreal m_height;
    int m_lineOffset;
};

QT_END_NAMESPACE

QML_DECLARE_TYPE(QQuickText)
QML_DECLARE_TYPE(QQuickTextLine)

#endif // QQUICKTEXT_P_H