summaryrefslogtreecommitdiffstats
path: root/src/declarative/graphicsitems/qdeclarativepath_p.h
blob: 5210aebb47f97755d3168b23fd09db3fa4ba426d (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
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QDECLARATIVEPATH_H
#define QDECLARATIVEPATH_H

#include "qdeclarativeitem.h"

#include <qdeclarative.h>

#include <QtCore/QObject>
#include <QtGui/QPainterPath>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Declarative)
class Q_AUTOTEST_EXPORT QDeclarativePathElement : public QObject
{
    Q_OBJECT
public:
    QDeclarativePathElement(QObject *parent=0) : QObject(parent) {}
Q_SIGNALS:
    void changed();
};

class Q_AUTOTEST_EXPORT QDeclarativePathAttribute : public QDeclarativePathElement
{
    Q_OBJECT

    Q_PROPERTY(QString name READ name WRITE setName NOTIFY nameChanged)
    Q_PROPERTY(qreal value READ value WRITE setValue NOTIFY valueChanged)
public:
    QDeclarativePathAttribute(QObject *parent=0) : QDeclarativePathElement(parent), _value(0) {}


    QString name() const;
    void setName(const QString &name);

    qreal value() const;
    void setValue(qreal value);

Q_SIGNALS:
    void nameChanged();
    void valueChanged();

private:
    QString _name;
    qreal _value;
};

class Q_AUTOTEST_EXPORT QDeclarativeCurve : public QDeclarativePathElement
{
    Q_OBJECT

    Q_PROPERTY(qreal x READ x WRITE setX NOTIFY xChanged)
    Q_PROPERTY(qreal y READ y WRITE setY NOTIFY yChanged)
public:
    QDeclarativeCurve(QObject *parent=0) : QDeclarativePathElement(parent), _x(0), _y(0) {}

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

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

    virtual void addToPath(QPainterPath &) {}

Q_SIGNALS:
    void xChanged();
    void yChanged();

private:
    qreal _x;
    qreal _y;
};

class Q_AUTOTEST_EXPORT QDeclarativePathLine : public QDeclarativeCurve
{
    Q_OBJECT
public:
    QDeclarativePathLine(QObject *parent=0) : QDeclarativeCurve(parent) {}

    void addToPath(QPainterPath &path);
};

class Q_AUTOTEST_EXPORT QDeclarativePathQuad : public QDeclarativeCurve
{
    Q_OBJECT

    Q_PROPERTY(qreal controlX READ controlX WRITE setControlX NOTIFY controlXChanged)
    Q_PROPERTY(qreal controlY READ controlY WRITE setControlY NOTIFY controlYChanged)
public:
    QDeclarativePathQuad(QObject *parent=0) : QDeclarativeCurve(parent), _controlX(0), _controlY(0) {}

    qreal controlX() const;
    void setControlX(qreal x);

    qreal controlY() const;
    void setControlY(qreal y);

    void addToPath(QPainterPath &path);

Q_SIGNALS:
    void controlXChanged();
    void controlYChanged();

private:
    qreal _controlX;
    qreal _controlY;
};

class Q_AUTOTEST_EXPORT QDeclarativePathCubic : public QDeclarativeCurve
{
    Q_OBJECT

    Q_PROPERTY(qreal control1X READ control1X WRITE setControl1X NOTIFY control1XChanged)
    Q_PROPERTY(qreal control1Y READ control1Y WRITE setControl1Y NOTIFY control1YChanged)
    Q_PROPERTY(qreal control2X READ control2X WRITE setControl2X NOTIFY control2XChanged)
    Q_PROPERTY(qreal control2Y READ control2Y WRITE setControl2Y NOTIFY control2YChanged)
public:
    QDeclarativePathCubic(QObject *parent=0) : QDeclarativeCurve(parent), _control1X(0), _control1Y(0), _control2X(0), _control2Y(0) {}

    qreal control1X() const;
    void setControl1X(qreal x);

    qreal control1Y() const;
    void setControl1Y(qreal y);

    qreal control2X() const;
    void setControl2X(qreal x);

    qreal control2Y() const;
    void setControl2Y(qreal y);

    void addToPath(QPainterPath &path);

Q_SIGNALS:
    void control1XChanged();
    void control1YChanged();
    void control2XChanged();
    void control2YChanged();

private:
    qreal _control1X;
    qreal _control1Y;
    qreal _control2X;
    qreal _control2Y;
};

class Q_AUTOTEST_EXPORT QDeclarativePathPercent : public QDeclarativePathElement
{
    Q_OBJECT
    Q_PROPERTY(qreal value READ value WRITE setValue NOTIFY valueChanged)
public:
    QDeclarativePathPercent(QObject *parent=0) : QDeclarativePathElement(parent) {}

    qreal value() const;
    void setValue(qreal value);

signals:
    void valueChanged();

private:
    qreal _value;
};

class QDeclarativePathPrivate;
class Q_AUTOTEST_EXPORT QDeclarativePath : public QObject, public QDeclarativeParserStatus
{
    Q_OBJECT

    Q_INTERFACES(QDeclarativeParserStatus)
    Q_PROPERTY(QDeclarativeListProperty<QDeclarativePathElement> pathElements READ pathElements)
    Q_PROPERTY(qreal startX READ startX WRITE setStartX NOTIFY startXChanged)
    Q_PROPERTY(qreal startY READ startY WRITE setStartY NOTIFY startYChanged)
    Q_PROPERTY(bool closed READ isClosed NOTIFY changed)
    Q_CLASSINFO("DefaultProperty", "pathElements")
    Q_INTERFACES(QDeclarativeParserStatus)
public:
    QDeclarativePath(QObject *parent=0);
    ~QDeclarativePath();

    QDeclarativeListProperty<QDeclarativePathElement> pathElements();

    qreal startX() const;
    void setStartX(qreal x);

    qreal startY() const;
    void setStartY(qreal y);

    bool isClosed() const;

    QPainterPath path() const;
    QStringList attributes() const;
    qreal attributeAt(const QString &, qreal) const;
    QPointF pointAt(qreal) const;

Q_SIGNALS:
    void changed();
    void startXChanged();
    void startYChanged();

protected:
    virtual void componentComplete();
    virtual void classBegin();

private Q_SLOTS:
    void processPath();

private:
    struct AttributePoint {
        AttributePoint() : percent(0), scale(1), origpercent(0) {}
        AttributePoint(const AttributePoint &other)
            : percent(other.percent), scale(other.scale), origpercent(other.origpercent), values(other.values) {}
        AttributePoint &operator=(const AttributePoint &other) {
            percent = other.percent; scale = other.scale; origpercent = other.origpercent; values = other.values; return *this;
        }
        qreal percent;      //massaged percent along the painter path
        qreal scale;
        qreal origpercent;  //'real' percent along the painter path
        QHash<QString, qreal> values;
    };

    void interpolate(int idx, const QString &name, qreal value);
    void endpoint(const QString &name);
    void createPointCache() const;

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

QT_END_NAMESPACE

QML_DECLARE_TYPE(QDeclarativePathElement)
QML_DECLARE_TYPE(QDeclarativePathAttribute)
QML_DECLARE_TYPE(QDeclarativeCurve)
QML_DECLARE_TYPE(QDeclarativePathLine)
QML_DECLARE_TYPE(QDeclarativePathQuad)
QML_DECLARE_TYPE(QDeclarativePathCubic)
QML_DECLARE_TYPE(QDeclarativePathPercent)
QML_DECLARE_TYPE(QDeclarativePath)

QT_END_HEADER

#endif // QDECLARATIVEPATH_H