diff options
Diffstat (limited to 'src/gui/painting/qpainter.cpp')
-rw-r--r-- | src/gui/painting/qpainter.cpp | 367 |
1 files changed, 328 insertions, 39 deletions
diff --git a/src/gui/painting/qpainter.cpp b/src/gui/painting/qpainter.cpp index e2d9b32..baa9ce3 100644 --- a/src/gui/painting/qpainter.cpp +++ b/src/gui/painting/qpainter.cpp @@ -1293,7 +1293,7 @@ void QPainterPrivate::updateState(QPainterState *newState) destination. Note that composition transformation operates pixelwise. For that - reason, there is a difference between using the grahic primitive + reason, there is a difference between using the graphic primitive itself and its bounding rectangle: The bounding rect contains pixels with alpha == 0 (i.e the pixels surrounding the primitive). These pixels will overwrite the other image's pixels, @@ -1465,8 +1465,8 @@ bool QPainter::isActive() const /*! Initializes the painters pen, background and font to the same as - the given \a widget. Call this function after begin() while the - painter is active. + the given \a widget. This function is called automatically when the + painter is opened on a QWidget. \sa begin(), {QPainter#Settings}{Settings} */ @@ -1484,7 +1484,9 @@ void QPainter::initFrom(const QWidget *widget) d->state->bgBrush = pal.brush(widget->backgroundRole()); d->state->deviceFont = QFont(widget->font(), const_cast<QWidget*> (widget)); d->state->font = d->state->deviceFont; - if (d->engine) { + if (d->extended) { + d->extended->penChanged(); + } else if (d->engine) { d->engine->setDirty(QPaintEngine::DirtyPen); d->engine->setDirty(QPaintEngine::DirtyBrush); d->engine->setDirty(QPaintEngine::DirtyFont); @@ -2371,6 +2373,11 @@ void QPainter::setClipping(bool enable) Returns the currently set clip region. Note that the clip region is given in logical coordinates. + \warning QPainter does not store the combined clip explicitly as + this is handled by the underlying QPaintEngine, so the path is + recreated on demand and transformed to the current logical + coordinate system. This is potentially an expensive operation. + \sa setClipRegion(), clipPath(), setClipping() */ @@ -2391,7 +2398,6 @@ QRegion QPainter::clipRegion() const // ### Falcon: Use QPainterPath for (int i=0; i<d->state->clipInfo.size(); ++i) { const QPainterClipInfo &info = d->state->clipInfo.at(i); - QRegion other; switch (info.clipType) { case QPainterClipInfo::RegionClip: { @@ -2444,15 +2450,20 @@ QRegion QPainter::clipRegion() const lastWasNothing = false; continue; } - if (info.operation == Qt::IntersectClip) - region &= QRegion(info.rect) * matrix; - else if (info.operation == Qt::UniteClip) + if (info.operation == Qt::IntersectClip) { + // Use rect intersection if possible. + if (matrix.type() <= QTransform::TxScale) + region &= matrix.mapRect(info.rect); + else + region &= matrix.map(QRegion(info.rect)); + } else if (info.operation == Qt::UniteClip) { region |= QRegion(info.rect) * matrix; - else if (info.operation == Qt::NoClip) { + } else if (info.operation == Qt::NoClip) { lastWasNothing = true; region = QRegion(); - } else + } else { region = QRegion(info.rect) * matrix; + } break; } @@ -2463,15 +2474,20 @@ QRegion QPainter::clipRegion() const lastWasNothing = false; continue; } - if (info.operation == Qt::IntersectClip) - region &= QRegion(info.rectf.toRect()) * matrix; - else if (info.operation == Qt::UniteClip) + if (info.operation == Qt::IntersectClip) { + // Use rect intersection if possible. + if (matrix.type() <= QTransform::TxScale) + region &= matrix.mapRect(info.rectf.toRect()); + else + region &= matrix.map(QRegion(info.rectf.toRect())); + } else if (info.operation == Qt::UniteClip) { region |= QRegion(info.rectf.toRect()) * matrix; - else if (info.operation == Qt::NoClip) { + } else if (info.operation == Qt::NoClip) { lastWasNothing = true; region = QRegion(); - } else + } else { region = QRegion(info.rectf.toRect()) * matrix; + } break; } } @@ -2486,6 +2502,11 @@ extern QPainterPath qt_regionToPath(const QRegion ®ion); Returns the currently clip as a path. Note that the clip path is given in logical coordinates. + \warning QPainter does not store the combined clip explicitly as + this is handled by the underlying QPaintEngine, so the path is + recreated on demand and transformed to the current logical + coordinate system. This is potentially an expensive operation. + \sa setClipPath(), clipRegion(), setClipping() */ QPainterPath QPainter::clipPath() const @@ -5121,6 +5142,11 @@ void QPainter::drawConvexPolygon(const QPointF *points, int pointCount) d->engine->drawPolygon(points, pointCount, QPaintEngine::ConvexMode); } +static inline QPointF roundInDeviceCoordinates(const QPointF &p, const QTransform &m) +{ + return m.inverted().map(QPointF(m.map(p).toPoint())); +} + /*! \fn void QPainter::drawPixmap(const QRectF &target, const QPixmap &pixmap, const QRectF &source) @@ -5155,7 +5181,7 @@ void QPainter::drawPixmap(const QPointF &p, const QPixmap &pm) Q_D(QPainter); - if (!d->engine || pm.isNull()) + if (!d->engine) return; #ifndef QT_NO_DEBUG @@ -5173,6 +5199,9 @@ void QPainter::drawPixmap(const QPointF &p, const QPixmap &pm) int w = pm.width(); int h = pm.height(); + if (w <= 0) + return; + // Emulate opaque background for bitmaps if (d->state->bgMode == Qt::OpaqueMode && pm.isQBitmap()) { fillRect(QRectF(x, y, w, h), d->state->bgBrush.color()); @@ -5186,11 +5215,12 @@ void QPainter::drawPixmap(const QPointF &p, const QPixmap &pm) || (d->state->opacity != 1.0 && !d->engine->hasFeature(QPaintEngine::ConstantOpacity))) { save(); - // If there is no scaling or transformation involved we have to make sure we use the + // If there is no rotation involved we have to make sure we use the // antialiased and not the aliased coordinate system by rounding the coordinates. - if (d->state->matrix.type() <= QTransform::TxTranslate) { - x = qRound(x + d->state->matrix.dx()) - d->state->matrix.dx(); - y = qRound(y + d->state->matrix.dy()) - d->state->matrix.dy(); + if (d->state->matrix.type() <= QTransform::TxScale) { + const QPointF p = roundInDeviceCoordinates(QPointF(x, y), d->state->matrix); + x = p.x(); + y = p.y(); } translate(x, y); setBackgroundMode(Qt::TransparentMode); @@ -5300,16 +5330,21 @@ void QPainter::drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr) || ((sw != w || sh != h) && !d->engine->hasFeature(QPaintEngine::PixmapTransform))) { save(); - // If there is no scaling or transformation involved we have to make sure we use the + // If there is no rotation involved we have to make sure we use the // antialiased and not the aliased coordinate system by rounding the coordinates. + if (d->state->matrix.type() <= QTransform::TxScale) { + const QPointF p = roundInDeviceCoordinates(QPointF(x, y), d->state->matrix); + x = p.x(); + y = p.y(); + } + if (d->state->matrix.type() <= QTransform::TxTranslate && sw == w && sh == h) { - x = qRound(x + d->state->matrix.dx()) - d->state->matrix.dx(); - y = qRound(y + d->state->matrix.dy()) - d->state->matrix.dy(); sx = qRound(sx); sy = qRound(sy); sw = qRound(sw); sh = qRound(sh); } + translate(x, y); scale(w / sw, h / sh); setBackgroundMode(Qt::TransparentMode); @@ -5459,11 +5494,12 @@ void QPainter::drawImage(const QPointF &p, const QImage &image) || (d->state->opacity != 1.0 && !d->engine->hasFeature(QPaintEngine::ConstantOpacity))) { save(); - // If there is no scaling or transformation involved we have to make sure we use the + // If there is no rotation involved we have to make sure we use the // antialiased and not the aliased coordinate system by rounding the coordinates. - if (d->state->matrix.type() <= QTransform::TxTranslate) { - x = qRound(x + d->state->matrix.dx()) - d->state->matrix.dx(); - y = qRound(y + d->state->matrix.dy()) - d->state->matrix.dy(); + if (d->state->matrix.type() <= QTransform::TxScale) { + const QPointF p = roundInDeviceCoordinates(QPointF(x, y), d->state->matrix); + x = p.x(); + y = p.y(); } translate(x, y); setBackgroundMode(Qt::TransparentMode); @@ -5562,11 +5598,15 @@ void QPainter::drawImage(const QRectF &targetRect, const QImage &image, const QR || (d->state->opacity != 1.0 && !d->engine->hasFeature(QPaintEngine::ConstantOpacity))) { save(); - // If there is no scaling or transformation involved we have to make sure we use the + // If there is no rotation involved we have to make sure we use the // antialiased and not the aliased coordinate system by rounding the coordinates. + if (d->state->matrix.type() <= QTransform::TxScale) { + const QPointF p = roundInDeviceCoordinates(QPointF(x, y), d->state->matrix); + x = p.x(); + y = p.y(); + } + if (d->state->matrix.type() <= QTransform::TxTranslate && sw == w && sh == h) { - x = qRound(x + d->state->matrix.dx()) - d->state->matrix.dx(); - y = qRound(y + d->state->matrix.dy()) - d->state->matrix.dy(); sx = qRound(sx); sy = qRound(sy); sw = qRound(sw); @@ -6309,17 +6349,18 @@ void QPainter::drawTiledPixmap(const QRectF &r, const QPixmap &pixmap, const QPo setBrush(QBrush(d->state->pen.color(), pixmap)); setPen(Qt::NoPen); - // If there is no scaling or transformation involved we have to make sure we use the + // If there is no rotation involved we have to make sure we use the // antialiased and not the aliased coordinate system by rounding the coordinates. - if (d->state->matrix.type() <= QTransform::TxTranslate) { - qreal x = qRound(r.x() + d->state->matrix.dx()) - d->state->matrix.dx(); - qreal y = qRound(r.y() + d->state->matrix.dy()) - d->state->matrix.dy(); - qreal w = qRound(r.width()); - qreal h = qRound(r.height()); - sx = qRound(sx); - sy = qRound(sy); + if (d->state->matrix.type() <= QTransform::TxScale) { + const QPointF p = roundInDeviceCoordinates(r.topLeft(), d->state->matrix); + + if (d->state->matrix.type() <= QTransform::TxTranslate) { + sx = qRound(sx); + sy = qRound(sy); + } + setBrushOrigin(QPointF(r.x()-sx, r.y()-sy)); - drawRect(QRectF(x, y, w, h)); + drawRect(QRectF(p, r.size())); } else { setBrushOrigin(QPointF(r.x()-sx, r.y()-sy)); drawRect(r); @@ -8530,4 +8571,252 @@ void qt_draw_helper(QPainterPrivate *p, const QPainterPath &path, QPainterPrivat p->draw_helper(path, operation); } +/*! \fn Display *QPaintDevice::x11Display() const + Use QX11Info::display() instead. + + \oldcode + Display *display = widget->x11Display(); + \newcode + Display *display = QX11Info::display(); + \endcode + + \sa QWidget::x11Info(), QX11Info::display() +*/ + +/*! \fn int QPaintDevice::x11Screen() const + Use QX11Info::screen() instead. + + \oldcode + int screen = widget->x11Screen(); + \newcode + int screen = widget->x11Info().screen(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn void *QPaintDevice::x11Visual() const + Use QX11Info::visual() instead. + + \oldcode + void *visual = widget->x11Visual(); + \newcode + void *visual = widget->x11Info().visual(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn int QPaintDevice::x11Depth() const + Use QX11Info::depth() instead. + + \oldcode + int depth = widget->x11Depth(); + \newcode + int depth = widget->x11Info().depth(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn int QPaintDevice::x11Cells() const + Use QX11Info::cells() instead. + + \oldcode + int cells = widget->x11Cells(); + \newcode + int cells = widget->x11Info().cells(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn Qt::HANDLE QPaintDevice::x11Colormap() const + Use QX11Info::colormap() instead. + + \oldcode + unsigned long screen = widget->x11Colormap(); + \newcode + unsigned long screen = widget->x11Info().colormap(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn bool QPaintDevice::x11DefaultColormap() const + Use QX11Info::defaultColormap() instead. + + \oldcode + bool isDefault = widget->x11DefaultColormap(); + \newcode + bool isDefault = widget->x11Info().defaultColormap(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn bool QPaintDevice::x11DefaultVisual() const + Use QX11Info::defaultVisual() instead. + + \oldcode + bool isDefault = widget->x11DefaultVisual(); + \newcode + bool isDefault = widget->x11Info().defaultVisual(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn void *QPaintDevice::x11AppVisual(int screen) + Use QX11Info::visual() instead. + + \oldcode + void *visual = QPaintDevice::x11AppVisual(screen); + \newcode + void *visual = qApp->x11Info(screen).visual(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn Qt::HANDLE QPaintDevice::x11AppColormap(int screen) + Use QX11Info::colormap() instead. + + \oldcode + unsigned long colormap = QPaintDevice::x11AppColormap(screen); + \newcode + unsigned long colormap = qApp->x11Info(screen).colormap(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn Display *QPaintDevice::x11AppDisplay() + Use QX11Info::display() instead. + + \oldcode + Display *display = QPaintDevice::x11AppDisplay(); + \newcode + Display *display = qApp->x11Info().display(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn int QPaintDevice::x11AppScreen() + Use QX11Info::screen() instead. + + \oldcode + int screen = QPaintDevice::x11AppScreen(); + \newcode + int screen = qApp->x11Info().screen(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn int QPaintDevice::x11AppDepth(int screen) + Use QX11Info::depth() instead. + + \oldcode + int depth = QPaintDevice::x11AppDepth(screen); + \newcode + int depth = qApp->x11Info(screen).depth(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn int QPaintDevice::x11AppCells(int screen) + Use QX11Info::cells() instead. + + \oldcode + int cells = QPaintDevice::x11AppCells(screen); + \newcode + int cells = qApp->x11Info(screen).cells(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn Qt::HANDLE QPaintDevice::x11AppRootWindow(int screen) + Use QX11Info::appRootWindow() instead. + + \oldcode + unsigned long window = QPaintDevice::x11AppRootWindow(screen); + \newcode + unsigned long window = qApp->x11Info(screen).appRootWindow(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn bool QPaintDevice::x11AppDefaultColormap(int screen) + Use QX11Info::defaultColormap() instead. + + \oldcode + bool isDefault = QPaintDevice::x11AppDefaultColormap(screen); + \newcode + bool isDefault = qApp->x11Info(screen).defaultColormap(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn bool QPaintDevice::x11AppDefaultVisual(int screen) + Use QX11Info::defaultVisual() instead. + + \oldcode + bool isDefault = QPaintDevice::x11AppDefaultVisual(screen); + \newcode + bool isDefault = qApp->x11Info(screen).defaultVisual(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn void QPaintDevice::x11SetAppDpiX(int dpi, int screen) + Use QX11Info::setAppDpiX() instead. +*/ + +/*! \fn void QPaintDevice::x11SetAppDpiY(int dpi, int screen) + Use QX11Info::setAppDpiY() instead. +*/ + +/*! \fn int QPaintDevice::x11AppDpiX(int screen) + Use QX11Info::appDpiX() instead. + + \oldcode + bool isDefault = QPaintDevice::x11AppDpiX(screen); + \newcode + bool isDefault = qApp->x11Info(screen).appDpiX(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn int QPaintDevice::x11AppDpiY(int screen) + Use QX11Info::appDpiY() instead. + + \oldcode + bool isDefault = QPaintDevice::x11AppDpiY(screen); + \newcode + bool isDefault = qApp->x11Info(screen).appDpiY(); + \endcode + + \sa QWidget::x11Info(), QPixmap::x11Info() +*/ + +/*! \fn HDC QPaintDevice::getDC() const + \internal +*/ + +/*! \fn void QPaintDevice::releaseDC(HDC) const + \internal +*/ + +/*! \fn QWSDisplay *QPaintDevice::qwsDisplay() + \internal +*/ + QT_END_NAMESPACE |