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Andrew den Exter authored
Task-number: QTBUG-24521 Change-Id: Idd451d0a8a238a60691386726e34054c0368b658 Reviewed-by:Yann Bodson <yann.bodson@nokia.com>
ae4c3c14
/******************************************************************************** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).** Contact: http://www.qt-project.org/**** This file is part of the QtDeclarative module of the Qt Toolkit.**** $QT_BEGIN_LICENSE:LGPL$** GNU Lesser General Public License Usage** 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.**** GNU General Public License Usage** Alternatively, this file may be used under the terms of the GNU General** Public License version 3.0 as published by the Free Software Foundation** and appearing in the file LICENSE.GPL included in the packaging of this** file. Please review the following information to ensure the GNU General** Public License version 3.0 requirements will be met:** http://www.gnu.org/copyleft/gpl.html.**** Other Usage** Alternatively, this file may be used in accordance with the terms and** conditions contained in a signed written agreement between you and Nokia.************** $QT_END_LICENSE$******************************************************************************/#ifndef QQUICKTEXT_P_P_H#define QQUICKTEXT_P_P_H//// W A R N I N G// -------------//// This file is not part of the Qt API. It exists purely as an// implementation detail. This header file may change from version to// version without notice, or even be removed.//// We mean it.//#include "qquicktext_p.h"#include "qquickimplicitsizeitem_p_p.h"#include <QtDeclarative/qdeclarative.h>#include <QtGui/qabstracttextdocumentlayout.h>#include <QtGui/qtextlayout.h>#include <private/qdeclarativestyledtext_p.h>#include <private/qlazilyallocated_p.h>QT_BEGIN_NAMESPACEclass QTextLayout;class QQuickTextDocumentWithImageResources;class Q_AUTOTEST_EXPORT QQuickTextPrivate : public QQuickImplicitSizeItemPrivate7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
{
Q_DECLARE_PUBLIC(QQuickText)
public:
QQuickTextPrivate();
~QQuickTextPrivate();
void init();
void updateSize();
void updateLayout();
bool determineHorizontalAlignment();
bool setHAlign(QQuickText::HAlignment, bool forceAlign = false);
void mirrorChange();
bool isLineLaidOutConnected();
void setLineGeometry(QTextLine &line, qreal lineWidth, qreal &height);
QString elidedText(qreal lineWidth, const QTextLine &line, QTextLine *nextLine = 0) const;
void elideFormats(int start, int length, int offset, QList<QTextLayout::FormatRange> *elidedFormats);
QRectF layedOutTextRect;
struct ExtraData {
ExtraData();
qreal lineHeight;
QQuickTextDocumentWithImageResources *doc;
QString activeLink;
int minimumPixelSize;
int minimumPointSize;
int nbActiveDownloads;
int maximumLineCount;
QQuickText::LineHeightMode lineHeightMode;
QQuickText::FontSizeMode fontSizeMode;
};
QLazilyAllocated<ExtraData> extra;
QString text;
QUrl baseUrl;
QFont font;
QFont sourceFont;
QList<QDeclarativeStyledTextImgTag*> imgTags;
QList<QDeclarativeStyledTextImgTag*> visibleImgTags;
QTextLayout layout;
QTextLayout *elideLayout;
QQuickTextLine *textLine;
#if defined(Q_OS_MAC)
QList<QRectF> linesRects;
QThread *layoutThread;
QThread *paintingThread;
#endif
QRgb color;
QRgb linkColor;
QRgb styleColor;
int lineCount;
int multilengthEos;
enum UpdateType {
UpdateNone,
UpdatePreprocess,
UpdatePaintNode
};
QQuickText::TextElideMode elideMode;
QQuickText::HAlignment hAlign;
QQuickText::VAlignment vAlign;
QQuickText::TextFormat format;
QQuickText::WrapMode wrapMode;
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QQuickText::TextStyle style;
UpdateType updateType;
bool maximumLineCountValid:1;
bool updateOnComponentComplete:1;
bool updateLayoutOnPolish:1;
bool richText:1;
bool styledText:1;
bool singleline:1;
bool internalWidthUpdate:1;
bool requireImplicitWidth:1;
bool truncated:1;
bool hAlignImplicit:1;
bool rightToLeftText:1;
bool layoutTextElided:1;
bool textHasChanged:1;
bool needToUpdateLayout:1;
bool formatModifiesFontSize:1;
static const QChar elideChar;
virtual qreal getImplicitWidth() const;
void ensureDoc();
QRectF setupTextLayout(qreal *const naturalWidth);
void setupCustomLineGeometry(QTextLine &line, qreal &height, int lineOffset = 0);
bool isLinkActivatedConnected();
QString anchorAt(const QPointF &pos);
inline qreal lineHeight() const { return extra.isAllocated() ? extra->lineHeight : 1.0; }
inline int maximumLineCount() const { return extra.isAllocated() ? extra->maximumLineCount : INT_MAX; }
inline QQuickText::LineHeightMode lineHeightMode() const { return extra.isAllocated() ? extra->lineHeightMode : QQuickText::ProportionalHeight; }
inline QQuickText::FontSizeMode fontSizeMode() const { return extra.isAllocated() ? extra->fontSizeMode : QQuickText::FixedSize; }
inline int minimumPixelSize() const { return extra.isAllocated() ? extra->minimumPixelSize : 12; }
inline int minimumPointSize() const { return extra.isAllocated() ? extra->minimumPointSize : 12; }
static inline QQuickTextPrivate *get(QQuickText *t) { return t->d_func(); }
};
class QDeclarativePixmap;
class QQuickTextDocumentWithImageResources : public QTextDocument, public QTextObjectInterface
{
Q_OBJECT
Q_INTERFACES(QTextObjectInterface)
public:
QQuickTextDocumentWithImageResources(QQuickItem *parent);
virtual ~QQuickTextDocumentWithImageResources();
void setText(const QString &);
int resourcesLoading() const { return outstanding; }
void clearResources();
void clear();
QSizeF intrinsicSize(QTextDocument *doc, int posInDocument, const QTextFormat &format);
void drawObject(QPainter *p, const QRectF &rect, QTextDocument *doc, int posInDocument, const QTextFormat &format);
QImage image(const QTextImageFormat &format);
void setBaseUrl(const QUrl &url, bool clear = true);
Q_SIGNALS:
void imagesLoaded();
protected:
QVariant loadResource(int type, const QUrl &name);
QDeclarativePixmap *loadPixmap(QDeclarativeContext *context, const QUrl &name);
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private slots:
void requestFinished();
private:
QHash<QUrl, QDeclarativePixmap *> m_resources;
QUrl m_baseUrl;
int outstanding;
static QSet<QUrl> errors;
};
QT_END_NAMESPACE
#endif // QQUICKTEXT_P_P_H