diff options
| -rw-r--r-- | src/openvg/qpaintengine_vg.cpp | 28 | ||||
| -rw-r--r-- | src/openvg/qpaintengine_vg_p.h | 2 | ||||
| -rw-r--r-- | src/openvg/qwindowsurface_vg.cpp | 14 |
3 files changed, 41 insertions, 3 deletions
diff --git a/src/openvg/qpaintengine_vg.cpp b/src/openvg/qpaintengine_vg.cpp index 75b7fa5..fda4b10 100644 --- a/src/openvg/qpaintengine_vg.cpp +++ b/src/openvg/qpaintengine_vg.cpp @@ -3407,6 +3407,34 @@ void QVGPaintEngine::restoreState(QPaintEngine::DirtyFlags dirty) #endif } +void QVGPaintEngine::fillRegion + (const QRegion& region, const QColor& color, const QSize& surfaceSize) +{ + Q_D(QVGPaintEngine); + if (d->clearColor != color || d->clearOpacity != 1.0f) { + VGfloat values[4]; + values[0] = color.redF(); + values[1] = color.greenF(); + values[2] = color.blueF(); + values[3] = color.alphaF(); + vgSetfv(VG_CLEAR_COLOR, 4, values); + d->clearColor = color; + d->clearOpacity = 1.0f; + } + if (region.rectCount() == 1) { + QRect r = region.boundingRect(); + vgClear(r.x(), surfaceSize.height() - r.y() - r.height(), + r.width(), r.height()); + } else { + const QVector<QRect> rects = region.rects(); + for (int i = 0; i < rects.size(); ++i) { + QRect r = rects.at(i); + vgClear(r.x(), surfaceSize.height() - r.y() - r.height(), + r.width(), r.height()); + } + } +} + #if !defined(QVG_NO_SINGLE_CONTEXT) && !defined(QT_NO_EGL) QVGCompositionHelper::QVGCompositionHelper() diff --git a/src/openvg/qpaintengine_vg_p.h b/src/openvg/qpaintengine_vg_p.h index 1202b55..86a522a 100644 --- a/src/openvg/qpaintengine_vg_p.h +++ b/src/openvg/qpaintengine_vg_p.h @@ -151,6 +151,8 @@ public: QVGPaintEnginePrivate *vgPrivate() { Q_D(QVGPaintEngine); return d; } + void fillRegion(const QRegion& region, const QColor& color, const QSize& surfaceSize); + protected: QVGPaintEngine(QVGPaintEnginePrivate &data); diff --git a/src/openvg/qwindowsurface_vg.cpp b/src/openvg/qwindowsurface_vg.cpp index f8486a6..a1301e3 100644 --- a/src/openvg/qwindowsurface_vg.cpp +++ b/src/openvg/qwindowsurface_vg.cpp @@ -48,6 +48,7 @@ #if !defined(QT_NO_EGL) #include <QtGui/private/qegl_p.h> +#include <QtGui/private/qwidget_p.h> QT_BEGIN_NAMESPACE @@ -71,7 +72,6 @@ QVGWindowSurface::~QVGWindowSurface() QPaintDevice *QVGWindowSurface::paintDevice() { - d_ptr->beginPaint(window()); return this; } @@ -94,8 +94,16 @@ bool QVGWindowSurface::scroll(const QRegion &area, int dx, int dy) void QVGWindowSurface::beginPaint(const QRegion ®ion) { - // Nothing to do here. - Q_UNUSED(region); + d_ptr->beginPaint(window()); + + // If the window is not opaque, then fill the region we are about + // to paint with the transparent color. + if (!qt_widget_private(window())->isOpaque && + window()->testAttribute(Qt::WA_TranslucentBackground)) { + QVGPaintEngine *engine = static_cast<QVGPaintEngine *> + (d_ptr->paintEngine()); + engine->fillRegion(region, Qt::transparent, d_ptr->surfaceSize()); + } } void QVGWindowSurface::endPaint(const QRegion ®ion) |