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Diffstat (limited to 'src/qtquick1/graphicsitems/qdeclarativetextlayout.cpp')
| -rw-r--r-- | src/qtquick1/graphicsitems/qdeclarativetextlayout.cpp | 395 |
1 files changed, 0 insertions, 395 deletions
diff --git a/src/qtquick1/graphicsitems/qdeclarativetextlayout.cpp b/src/qtquick1/graphicsitems/qdeclarativetextlayout.cpp deleted file mode 100644 index 27fec2a581..0000000000 --- a/src/qtquick1/graphicsitems/qdeclarativetextlayout.cpp +++ /dev/null @@ -1,395 +0,0 @@ -/**************************************************************************** -** -** 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. -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qdeclarativetextlayout_p.h" -#include <private/qstatictext_p.h> -#include <private/qfontengine_p.h> -#include <private/qtextengine_p.h> -#include <private/qpainter_p.h> -#include <private/qpaintengineex_p.h> - -QT_BEGIN_NAMESPACE - -// Defined in qpainter.cpp -extern Q_GUI_EXPORT void qt_draw_decoration_for_glyphs(QPainter *painter, const glyph_t *glyphArray, - const QFixedPoint *positions, int glyphCount, - QFontEngine *fontEngine, const QFont &font, - const QTextCharFormat &charFormat); - - - -class QDeclarative1TextLayoutPrivate -{ -public: - QDeclarative1TextLayoutPrivate() - : cached(false) {} - - QPointF position; - - bool cached; - QVector<QStaticTextItem> items; - QVector<QFixedPoint> positions; - QVector<glyph_t> glyphs; - QVector<QChar> chars; -}; - -namespace { -class DrawTextItemRecorder: public QPaintEngine -{ - public: - DrawTextItemRecorder(bool untransformedCoordinates, bool useBackendOptimizations) - : m_inertText(0), m_dirtyPen(false), m_useBackendOptimizations(useBackendOptimizations), - m_untransformedCoordinates(untransformedCoordinates), m_currentColor(Qt::black) - { - } - - virtual void updateState(const QPaintEngineState &newState) - { - if (newState.state() & QPaintEngine::DirtyPen - && newState.pen().color() != m_currentColor) { - m_dirtyPen = true; - m_currentColor = newState.pen().color(); - } - } - - virtual void drawTextItem(const QPointF &position, const QTextItem &textItem) - { - int glyphOffset = m_inertText->glyphs.size(); // Store offset into glyph pool - int positionOffset = m_inertText->glyphs.size(); // Offset into position pool - int charOffset = m_inertText->chars.size(); - - const QTextItemInt &ti = static_cast<const QTextItemInt &>(textItem); - - bool needFreshCurrentItem = true; - if (!m_inertText->items.isEmpty()) { - QStaticTextItem &last = m_inertText->items[m_inertText->items.count() - 1]; - - if (last.fontEngine() == ti.fontEngine && last.font == ti.font() && - (!m_dirtyPen || last.color == state->pen().color())) { - needFreshCurrentItem = false; - - last.numChars += ti.num_chars; - - } - } - - if (needFreshCurrentItem) { - QStaticTextItem currentItem; - - currentItem.setFontEngine(ti.fontEngine); - currentItem.font = ti.font(); - currentItem.charOffset = charOffset; - currentItem.numChars = ti.num_chars; - currentItem.numGlyphs = 0; - currentItem.glyphOffset = glyphOffset; - currentItem.positionOffset = positionOffset; - currentItem.useBackendOptimizations = m_useBackendOptimizations; - if (m_dirtyPen) - currentItem.color = m_currentColor; - - m_inertText->items.append(currentItem); - } - - QStaticTextItem ¤tItem = m_inertText->items.last(); - - QTransform matrix = m_untransformedCoordinates ? QTransform() : state->transform(); - matrix.translate(position.x(), position.y()); - - QVarLengthArray<glyph_t> glyphs; - QVarLengthArray<QFixedPoint> positions; - ti.fontEngine->getGlyphPositions(ti.glyphs, matrix, ti.flags, glyphs, positions); - - int size = glyphs.size(); - Q_ASSERT(size == positions.size()); - currentItem.numGlyphs += size; - - m_inertText->glyphs.resize(m_inertText->glyphs.size() + size); - m_inertText->positions.resize(m_inertText->glyphs.size()); - m_inertText->chars.resize(m_inertText->chars.size() + ti.num_chars); - - glyph_t *glyphsDestination = m_inertText->glyphs.data() + glyphOffset; - qMemCopy(glyphsDestination, glyphs.constData(), sizeof(glyph_t) * size); - - QFixedPoint *positionsDestination = m_inertText->positions.data() + positionOffset; - qMemCopy(positionsDestination, positions.constData(), sizeof(QFixedPoint) * size); - - QChar *charsDestination = m_inertText->chars.data() + charOffset; - qMemCopy(charsDestination, ti.chars, sizeof(QChar) * ti.num_chars); - - } - - virtual void drawPolygon(const QPointF *, int , PolygonDrawMode ) - { - /* intentionally empty */ - } - - virtual bool begin(QPaintDevice *) { return true; } - virtual bool end() { return true; } - virtual void drawPixmap(const QRectF &, const QPixmap &, const QRectF &) {} - virtual Type type() const - { - return User; - } - - void begin(QDeclarative1TextLayoutPrivate *t) { - m_inertText = t; - m_dirtyPen = false; - } - - private: - QDeclarative1TextLayoutPrivate *m_inertText; - - bool m_dirtyPen; - bool m_useBackendOptimizations; - bool m_untransformedCoordinates; - QColor m_currentColor; -}; - -class DrawTextItemDevice: public QPaintDevice -{ - public: - DrawTextItemDevice(bool untransformedCoordinates, bool useBackendOptimizations) - { - m_paintEngine = new DrawTextItemRecorder(untransformedCoordinates, - useBackendOptimizations); - } - - ~DrawTextItemDevice() - { - delete m_paintEngine; - } - - void begin(QDeclarative1TextLayoutPrivate *t) { - m_paintEngine->begin(t); - } - - int metric(PaintDeviceMetric m) const - { - int val; - switch (m) { - case PdmWidth: - case PdmHeight: - case PdmWidthMM: - case PdmHeightMM: - val = 0; - break; - case PdmDpiX: - case PdmPhysicalDpiX: - val = qt_defaultDpiX(); - break; - case PdmDpiY: - case PdmPhysicalDpiY: - val = qt_defaultDpiY(); - break; - case PdmNumColors: - val = 16777216; - break; - case PdmDepth: - val = 24; - break; - default: - val = 0; - qWarning("DrawTextItemDevice::metric: Invalid metric command"); - } - return val; - } - - virtual QPaintEngine *paintEngine() const - { - return m_paintEngine; - } - - private: - DrawTextItemRecorder *m_paintEngine; -}; - -struct InertTextPainter { - InertTextPainter() - : device(true, true), painter(&device) {} - - DrawTextItemDevice device; - QPainter painter; -}; -} - -Q_GLOBAL_STATIC(InertTextPainter, inertTextPainter); - -/*! -\class QDeclarative1TextLayout -\brief The QDeclarative1TextLayout class is a version of QStaticText that works with QTextLayouts. -\internal - -This class is basically a copy of the QStaticText code, but it is adapted to source its text from -QTextLayout. - -It is also considerably faster to create a QDeclarative1TextLayout than a QStaticText because it uses -a single, shared QPainter instance. QStaticText by comparison creates a new QPainter per instance. -As a consequence this means that QDeclarative1TextLayout is not re-enterant. Adding a lock around -the shared painter solves this, and only introduces a minor performance penalty, but is unnecessary -for QDeclarative1TextLayout's current use (QDeclarative1Text is already tied to the GUI thread). -*/ - -QDeclarative1TextLayout::QDeclarative1TextLayout() -: d(0) -{ -} - -QDeclarative1TextLayout::QDeclarative1TextLayout(const QString &text) -: QTextLayout(text), d(0) -{ -} - -QDeclarative1TextLayout::~QDeclarative1TextLayout() -{ - if (d) delete d; -} - -void QDeclarative1TextLayout::beginLayout() -{ - if (d && d->cached) { - d->cached = false; - d->items.clear(); - d->positions.clear(); - d->glyphs.clear(); - d->chars.clear(); - d->position = QPointF(); - } - QTextLayout::beginLayout(); -} - -void QDeclarative1TextLayout::clearLayout() -{ - if (d && d->cached) { - d->cached = false; - d->items.clear(); - d->positions.clear(); - d->glyphs.clear(); - d->chars.clear(); - d->position = QPointF(); - } - QTextLayout::clearLayout(); -} - -void QDeclarative1TextLayout::prepare() -{ - if (!d || !d->cached) { - - if (!d) - d = new QDeclarative1TextLayoutPrivate; - - InertTextPainter *itp = inertTextPainter(); - itp->device.begin(d); - QTextLayout::draw(&itp->painter, QPointF(0, 0)); - - glyph_t *glyphPool = d->glyphs.data(); - QFixedPoint *positionPool = d->positions.data(); - QChar *charPool = d->chars.data(); - - int itemCount = d->items.count(); - for (int ii = 0; ii < itemCount; ++ii) { - QStaticTextItem &item = d->items[ii]; - item.glyphs = glyphPool + item.glyphOffset; - item.glyphPositions = positionPool + item.positionOffset; - item.chars = charPool + item.charOffset; - } - - d->cached = true; - } -} - -void QDeclarative1TextLayout::draw(QPainter *painter, const QPointF &p) -{ - QPainterPrivate *priv = QPainterPrivate::get(painter); - - bool paintEngineSupportsTransformations = priv->extended && - (priv->extended->type() == QPaintEngine::OpenGL2 || - priv->extended->type() == QPaintEngine::OpenVG || - priv->extended->type() == QPaintEngine::OpenGL); - - if (!paintEngineSupportsTransformations || !priv->state->matrix.isAffine()) { - QTextLayout::draw(painter, p); - return; - } - - prepare(); - - int itemCount = d->items.count(); - - if (p != d->position) { - QFixed fx = QFixed::fromReal(p.x()); - QFixed fy = QFixed::fromReal(p.y()); - QFixed oldX = QFixed::fromReal(d->position.x()); - QFixed oldY = QFixed::fromReal(d->position.y()); - for (int item = 0; item < itemCount; ++item) { - QStaticTextItem &textItem = d->items[item]; - - for (int ii = 0; ii < textItem.numGlyphs; ++ii) { - textItem.glyphPositions[ii].x += fx - oldX; - textItem.glyphPositions[ii].y += fy - oldY; - } - textItem.userDataNeedsUpdate = true; - } - - d->position = p; - } - - QPen oldPen = priv->state->pen; - QColor currentColor = oldPen.color(); - for (int ii = 0; ii < itemCount; ++ii) { - QStaticTextItem &item = d->items[ii]; - if (item.color.isValid() && currentColor != item.color) { - painter->setPen(item.color); - currentColor = item.color; - } - priv->extended->drawStaticTextItem(&item); - - qt_draw_decoration_for_glyphs(painter, item.glyphs, item.glyphPositions, - item.numGlyphs, item.fontEngine(), painter->font(), - QTextCharFormat()); - } - if (currentColor != oldPen.color()) - painter->setPen(oldPen); -} - - - -QT_END_NAMESPACE - |