diff options
author | Aaron McCarthy <aaron.mccarthy@nokia.com> | 2010-02-22 01:05:17 (GMT) |
---|---|---|
committer | Aaron McCarthy <aaron.mccarthy@nokia.com> | 2010-02-22 01:05:17 (GMT) |
commit | 0109df3ee449767c1836ec7028ac219c57cf9ca7 (patch) | |
tree | 5fdc90fd34ac4e49ba05bef47a86427e4df71917 /src/gui/painting/qpainter.cpp | |
parent | 46e84339a9eaf1587528c20a4c9e05bc1b549afd (diff) | |
parent | 0a83a6c571fadb454cb8711aed84258b061d44b5 (diff) | |
download | Qt-0109df3ee449767c1836ec7028ac219c57cf9ca7.zip Qt-0109df3ee449767c1836ec7028ac219c57cf9ca7.tar.gz Qt-0109df3ee449767c1836ec7028ac219c57cf9ca7.tar.bz2 |
Merge remote branch 'origin/master' into bearermanagement/unit-tests
Conflicts:
src/network/access/qnetworkaccessmanager.cpp
Diffstat (limited to 'src/gui/painting/qpainter.cpp')
-rw-r--r-- | src/gui/painting/qpainter.cpp | 144 |
1 files changed, 141 insertions, 3 deletions
diff --git a/src/gui/painting/qpainter.cpp b/src/gui/painting/qpainter.cpp index 270144b..4f532c0 100644 --- a/src/gui/painting/qpainter.cpp +++ b/src/gui/painting/qpainter.cpp @@ -70,6 +70,8 @@ #include <private/qwidget_p.h> #include <private/qpaintengine_raster_p.h> #include <private/qmath_p.h> +#include <qstatictext.h> +#include <private/qstatictext_p.h> QT_BEGIN_NAMESPACE @@ -709,13 +711,14 @@ void QPainterPrivate::updateEmulationSpecifier(QPainterState *s) bool penTextureAlpha = false; if (penBrush.style() == Qt::TexturePattern) penTextureAlpha = qHasPixmapTexture(penBrush) - ? penBrush.texture().hasAlpha() + ? (penBrush.texture().depth() > 1) && penBrush.texture().hasAlpha() : penBrush.textureImage().hasAlphaChannel(); bool brushTextureAlpha = false; - if (s->brush.style() == Qt::TexturePattern) + if (s->brush.style() == Qt::TexturePattern) { brushTextureAlpha = qHasPixmapTexture(s->brush) - ? s->brush.texture().hasAlpha() + ? (s->brush.texture().depth() > 1) && s->brush.texture().hasAlpha() : s->brush.textureImage().hasAlphaChannel(); + } if (((penBrush.style() == Qt::TexturePattern && penTextureAlpha) || (s->brush.style() == Qt::TexturePattern && brushTextureAlpha)) && !engine->hasFeature(QPaintEngine::MaskedBrush)) @@ -5698,6 +5701,23 @@ void QPainter::drawImage(const QRectF &targetRect, const QImage &image, const QR } /*! + + \fn void QPainter::drawStaticText(const QPoint &position, const QStaticText &staticText) + + \since 4.7 + + \overload +*/ + +/*! + \fn void QPainter::drawStaticText(int x, int y, const QStaticText &staticText) + + \since 4.7 + + \overload +*/ + +/*! \fn void QPainter::drawText(const QPointF &position, const QString &text) Draws the given \a text with the currently defined text direction, @@ -5720,6 +5740,124 @@ void QPainter::drawText(const QPointF &p, const QString &str) } /*! + \since 4.7 + + Draws the given \a staticText at the given \a position. + + The text will be drawn using the font and the transformation set on the painter. If the + font and/or transformation set on the painter are different from the ones used to initialize + the layout of the QStaticText, then the layout will have to be recalculated. Use + QStaticText::prepare() to initialize \a staticText with the font and transformation with which + it will later be drawn. + + If \a position is not the same as when \a staticText was initialized, or when it was last drawn, + then there will be a slight overhead when translating the text to its new position. + + \note If the painter's transformation is not affine, then \a staticText will be drawn using regular + calls to drawText(), losing any potential performance improvement. + + \sa QStaticText +*/ +void QPainter::drawStaticText(const QPointF &position, const QStaticText &staticText) +{ + Q_D(QPainter); + if (!d->engine || staticText.text().isEmpty() || pen().style() == Qt::NoPen) + return; + + QStaticTextPrivate *staticText_d = + const_cast<QStaticTextPrivate *>(QStaticTextPrivate::get(&staticText)); + + // If we don't have an extended paint engine, or if the painter is projected, + // we go through standard code path + if (d->extended == 0 || !d->state->matrix.isAffine()) { + staticText_d->paintText(position, this); + return; + } + + // Don't recalculate entire layout because of translation, rather add the dx and dy + // into the position to move each text item the correct distance. + QPointF transformedPosition = position * d->state->matrix; + QTransform matrix = d->state->matrix; + + // The translation has been applied to transformedPosition. Remove translation + // component from matrix. + if (d->state->matrix.isTranslating()) { + qreal m11 = d->state->matrix.m11(); + qreal m12 = d->state->matrix.m12(); + qreal m13 = d->state->matrix.m13(); + qreal m21 = d->state->matrix.m21(); + qreal m22 = d->state->matrix.m22(); + qreal m23 = d->state->matrix.m23(); + qreal m33 = d->state->matrix.m33(); + + d->state->matrix.setMatrix(m11, m12, m13, + m21, m22, m23, + 0.0, 0.0, m33); + } + + // If the transform is not identical to the text transform, + // we have to relayout the text (for other transformations than plain translation) + bool staticTextNeedsReinit = false; + if (staticText_d->matrix != d->state->matrix) { + staticText_d->matrix = d->state->matrix; + staticTextNeedsReinit = true; + } + + bool restoreWhenFinished = false; + if (staticText_d->needsClipRect) { + save(); + setClipRect(QRectF(position, staticText_d->maximumSize)); + + restoreWhenFinished = true; + } + + if (font() != staticText_d->font) { + staticText_d->font = font(); + staticTextNeedsReinit = true; + } + + // Recreate the layout of the static text because the matrix or font has changed + if (staticTextNeedsReinit) + staticText_d->init(); + + if (transformedPosition != staticText_d->position) { // Translate to actual position + QFixed fx = QFixed::fromReal(transformedPosition.x()); + QFixed fy = QFixed::fromReal(transformedPosition.y()); + QFixed oldX = QFixed::fromReal(staticText_d->position.x()); + QFixed oldY = QFixed::fromReal(staticText_d->position.y()); + for (int item=0; item<staticText_d->itemCount;++item) { + QStaticTextItem *textItem = staticText_d->items + item; + for (int i=0; i<textItem->numGlyphs; ++i) { + textItem->glyphPositions[i].x += fx - oldX; + textItem->glyphPositions[i].y += fy - oldY; + } + textItem->userDataNeedsUpdate = true; + } + + staticText_d->position = transformedPosition; + } + + QPen oldPen = d->state->pen; + QColor currentColor = oldPen.color(); + for (int i=0; i<staticText_d->itemCount; ++i) { + QStaticTextItem *item = staticText_d->items + i; + if (currentColor != item->color) { + setPen(item->color); + currentColor = item->color; + } + d->extended->drawStaticTextItem(item); + } + if (currentColor != oldPen.color()) + setPen(oldPen); + + if (restoreWhenFinished) + restore(); + + if (matrix.isTranslating()) + d->state->matrix = matrix; +} + +/*! \internal */ void QPainter::drawText(const QPointF &p, const QString &str, int tf, int justificationPadding) |