author | leseb <leseb> | 2002-06-23 17:47:47 (UTC) |
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committer | leseb <leseb> | 2002-06-23 17:47:47 (UTC) |
commit | 6fd46f6d23538ec6e0f48209f6c0f0d939a2effe (patch) (side-by-side diff) | |
tree | 2a5d407155f72dc5496d3a7d412922cc6be97e61 /noncore/graphics/drawpad/pointtool.cpp | |
parent | 3251c55f854ecbd4ece8bf169177ffac28081aaa (diff) | |
download | opie-6fd46f6d23538ec6e0f48209f6c0f0d939a2effe.zip opie-6fd46f6d23538ec6e0f48209f6c0f0d939a2effe.tar.gz opie-6fd46f6d23538ec6e0f48209f6c0f0d939a2effe.tar.bz2 |
Anti-aliasing as an option
Diffstat (limited to 'noncore/graphics/drawpad/pointtool.cpp') (more/less context) (ignore whitespace changes)
-rw-r--r-- | noncore/graphics/drawpad/pointtool.cpp | 54 |
1 files changed, 30 insertions, 24 deletions
diff --git a/noncore/graphics/drawpad/pointtool.cpp b/noncore/graphics/drawpad/pointtool.cpp index 22bb089..a4f846e 100644 --- a/noncore/graphics/drawpad/pointtool.cpp +++ b/noncore/graphics/drawpad/pointtool.cpp @@ -48,55 +48,61 @@ void PointTool::mouseReleaseEvent(QMouseEvent* e) void PointTool::mouseMoveEvent(QMouseEvent* e) { if (m_mousePressed) { m_polyline[2] = m_polyline[1]; m_polyline[1] = m_polyline[0]; m_polyline[0] = e->pos(); - QPainter painter; - painter.begin(m_pDrawPadCanvas->currentPage()); - QRect r = m_polyline.boundingRect(); r = r.normalize(); r.setLeft(r.left() - m_pDrawPad->pen().width()); r.setTop(r.top() - m_pDrawPad->pen().width()); r.setRight(r.right() + m_pDrawPad->pen().width()); r.setBottom(r.bottom() + m_pDrawPad->pen().width()); - QPixmap areaPixmap(r.width(), r.height()); - bitBlt(&areaPixmap, QPoint(0, 0), painter.device(), r); + QPainter painter; + painter.begin(m_pDrawPadCanvas->currentPage()); + + if (m_pDrawPad->antiAliasing()) { + QPixmap areaPixmap(r.width(), r.height()); + bitBlt(&areaPixmap, QPoint(0, 0), painter.device(), r); + + QImage areaImage = areaPixmap.convertToImage(); + QImage bigAreaImage = areaImage.smoothScale(areaImage.width() * 3, areaImage.height() * 3); - QImage areaImage = areaPixmap.convertToImage(); - QImage bigAreaImage = areaImage.smoothScale(areaImage.width() * 3, areaImage.height() * 3); + QPixmap bigAreaPixmap; + bigAreaPixmap.convertFromImage(bigAreaImage); - QPixmap bigAreaPixmap; - bigAreaPixmap.convertFromImage(bigAreaImage); + QPen bigAreaPen = m_pDrawPad->pen(); + bigAreaPen.setWidth(bigAreaPen.width() * 3); - QPen bigAreaPen = m_pDrawPad->pen(); - bigAreaPen.setWidth(bigAreaPen.width() * 3); + QPainter bigAreaPainter; + bigAreaPainter.begin(&bigAreaPixmap); + bigAreaPainter.setPen(bigAreaPen); - QPainter bigAreaPainter; - bigAreaPainter.begin(&bigAreaPixmap); - bigAreaPainter.setPen(bigAreaPen); + QPointArray bigAreaPolyline(3); + bigAreaPolyline.setPoint(0, (m_polyline[0].x() - r.x()) * 3 + 1, (m_polyline[0].y() - r.y()) * 3 + 1); + bigAreaPolyline.setPoint(1, (m_polyline[1].x() - r.x()) * 3 + 1, (m_polyline[1].y() - r.y()) * 3 + 1); + bigAreaPolyline.setPoint(2, (m_polyline[2].x() - r.x()) * 3 + 1, (m_polyline[2].y() - r.y()) * 3 + 1); - QPointArray bigAreaPolyline(3); - bigAreaPolyline.setPoint(0, (m_polyline[0].x() - r.x()) * 3 + 1, (m_polyline[0].y() - r.y()) * 3 + 1); - bigAreaPolyline.setPoint(1, (m_polyline[1].x() - r.x()) * 3 + 1, (m_polyline[1].y() - r.y()) * 3 + 1); - bigAreaPolyline.setPoint(2, (m_polyline[2].x() - r.x()) * 3 + 1, (m_polyline[2].y() - r.y()) * 3 + 1); + bigAreaPainter.drawPolyline(bigAreaPolyline); + bigAreaPainter.end(); - bigAreaPainter.drawPolyline(bigAreaPolyline); - bigAreaPainter.end(); + bigAreaImage = bigAreaPixmap.convertToImage(); + areaImage = bigAreaImage.smoothScale(bigAreaImage.width() / 3, bigAreaImage.height() / 3); + areaPixmap.convertFromImage(areaImage); - bigAreaImage = bigAreaPixmap.convertToImage(); - areaImage = bigAreaImage.smoothScale(bigAreaImage.width() / 3, bigAreaImage.height() / 3); - areaPixmap.convertFromImage(areaImage); + painter.drawPixmap(r.x(), r.y(), areaPixmap); + } else { + painter.setPen(m_pDrawPad->pen()); + painter.drawPolyline(m_polyline); + } - painter.drawPixmap(r.x(), r.y(), areaPixmap); painter.end(); QRect viewportRect(m_pDrawPadCanvas->contentsToViewport(r.topLeft()), m_pDrawPadCanvas->contentsToViewport(r.bottomRight())); bitBlt(m_pDrawPadCanvas->viewport(), viewportRect.x(), viewportRect.y(), m_pDrawPadCanvas->currentPage(), r.x(), r.y(), r.width(), r.height()); |