static void horizontalGradientHelper(QPainter *p, const QRect &spanRect, const QRect &rect, bool lightColored) { if (lightColored) { QLinearGradient shadowGradient(rect.topLeft(), rect.bottomLeft()); shadowGradient.setColorAt(0, 0xf0f0f0); shadowGradient.setColorAt(1, 0xcfcfcf); p->fillRect(rect, shadowGradient); return; } QColor base = StyleHelper::baseColor(lightColored); QColor highlight = StyleHelper::highlightColor(lightColored); QColor shadow = StyleHelper::shadowColor(lightColored); QLinearGradient grad(rect.topLeft(), rect.bottomLeft()); grad.setColorAt(0, highlight.lighter(120)); if (rect.height() == StyleHelper::navigationWidgetHeight()) { grad.setColorAt(0.4, highlight); grad.setColorAt(0.401, base); } grad.setColorAt(1, shadow); p->fillRect(rect, grad); QLinearGradient shadowGradient(spanRect.topLeft(), spanRect.topRight()); shadowGradient.setColorAt(0, QColor(0, 0, 0, 30)); QColor lighterHighlight; lighterHighlight = highlight.lighter(130); lighterHighlight.setAlpha(100); shadowGradient.setColorAt(0.7, lighterHighlight); shadowGradient.setColorAt(1, QColor(0, 0, 0, 40)); p->fillRect(rect, shadowGradient); }
void KNMessageContent::paintEvent(QPaintEvent *event) { //Draw original content. QWidget::paintEvent(event); //Draw shadows. QPainter painter(this); painter.setPen(Qt::NoPen); //Draw up bound shadow. QLinearGradient shadowGradient(0,0,0,m_shadowHeight); shadowGradient.setColorAt(0, QColor(0,0,0,33)); shadowGradient.setColorAt(1, QColor(0,0,0,0)); painter.fillRect(QRect(0,0,width(),m_shadowHeight), shadowGradient); //Draw down bound shadow. //--Why using translate? //Because you need to change the start and stop postion of the gradient //if you don't want to use translate. painter.translate(0, height()-m_shadowHeight); shadowGradient.setColorAt(0, QColor(0,0,0,0)); shadowGradient.setColorAt(1, QColor(0,0,0,20)); painter.fillRect(QRect(0,0,width(),m_shadowHeight), shadowGradient); }
static void horizontalGradientHelper(QPainter *p, const QRect &spanRect, const QRect &rect) { QColor base = StyleHelper::baseColor(); QLinearGradient grad(rect.topLeft(), rect.bottomLeft()); grad.setColorAt(0, StyleHelper::highlightColor().lighter(120)); if (rect.height() == StyleHelper::navigationWidgetHeight()) { grad.setColorAt(0.4, StyleHelper::highlightColor()); grad.setColorAt(0.401, base); } grad.setColorAt(1, StyleHelper::shadowColor()); p->fillRect(rect, grad); QLinearGradient shadowGradient(spanRect.topLeft(), spanRect.topRight()); shadowGradient.setColorAt(0, QColor(0, 0, 0, 30)); QColor highlight = StyleHelper::highlightColor().lighter(130); highlight.setAlpha(100); shadowGradient.setColorAt(0.7, highlight); shadowGradient.setColorAt(1, QColor(0, 0, 0, 40)); p->fillRect(rect, shadowGradient); }
void StyleHelper::horizontalGradient(QPainter *painter, const QRect &spanRect, const QRect &clipRect) { QString key; key.sprintf("mh_toolbar %d %d %d %d %d", spanRect.width(), spanRect.height(), clipRect.width(), clipRect.height(), StyleHelper::baseColor().rgb()); QPixmap pixmap; QPainter *p = painter; QRect rect = clipRect; if (StyleHelper::usePixmapCache() && !QPixmapCache::find(key, pixmap)) { pixmap = QPixmap(clipRect.size()); p = new QPainter(&pixmap); rect = QRect(0, 0, clipRect.width(), clipRect.height()); } QColor base = StyleHelper::baseColor(); QLinearGradient grad(rect.topLeft(), rect.bottomLeft()); grad.setColorAt(0, highlightColor().lighter(120)); grad.setColorAt(0.4, highlightColor()); grad.setColorAt(0.401, base); grad.setColorAt(1, shadowColor()); p->fillRect(rect, grad); QLinearGradient shadowGradient(spanRect.topLeft(), spanRect.topRight()); shadowGradient.setColorAt(0, QColor(0, 0, 0, 30)); QColor highlight = highlightColor().lighter(130); highlight.setAlpha(100); shadowGradient.setColorAt(0.7, highlight); shadowGradient.setColorAt(1, QColor(0, 0, 0, 40)); p->fillRect(rect, shadowGradient); if (StyleHelper::usePixmapCache() && !QPixmapCache::find(key, pixmap)) { painter->drawPixmap(clipRect.topLeft(), pixmap); p->end(); delete p; QPixmapCache::insert(key, pixmap); } }
void drawDial(const QStyleOptionSlider *option, QPainter *painter) { QPalette pal = option->palette; QColor buttonColor = pal.button().color(); const int width = option->rect.width(); const int height = option->rect.height(); const bool enabled = option->state & QStyle::State_Enabled; qreal r = qMin(width, height) / 2; r -= r/50; const qreal penSize = r/20.0; painter->save(); // Draw notches if (option->subControls & QStyle::SC_DialTickmarks) { painter->setPen(option->palette.dark().color().darker(120)); painter->drawLines(QStyleHelper::calcLines(option)); } // Cache dial background BEGIN_STYLE_PIXMAPCACHE(QString::fromLatin1("qdial")); const qreal d_ = r / 6; const qreal dx = option->rect.x() + d_ + (width - 2 * r) / 2 + 1; const qreal dy = option->rect.y() + d_ + (height - 2 * r) / 2 + 1; QRectF br = QRectF(dx + 0.5, dy + 0.5, int(r * 2 - 2 * d_ - 2), int(r * 2 - 2 * d_ - 2)); buttonColor.setHsv(buttonColor .hue(), qMin(140, buttonColor .saturation()), qMax(180, buttonColor.value())); QColor shadowColor(0, 0, 0, 20); if (enabled) { // Drop shadow qreal shadowSize = qMax(1.0, penSize/2.0); QRectF shadowRect= br.adjusted(-2*shadowSize, -2*shadowSize, 2*shadowSize, 2*shadowSize); QRadialGradient shadowGradient(shadowRect.center().x(), shadowRect.center().y(), shadowRect.width()/2.0, shadowRect.center().x(), shadowRect.center().y()); shadowGradient.setColorAt(qreal(0.91), QColor(0, 0, 0, 40)); shadowGradient.setColorAt(qreal(1.0), Qt::transparent); p->setBrush(shadowGradient); p->setPen(Qt::NoPen); p->translate(shadowSize, shadowSize); p->drawEllipse(shadowRect); p->translate(-shadowSize, -shadowSize); // Main gradient QRadialGradient gradient(br.center().x() - br.width()/3, dy, br.width()*1.3, br.center().x(), br.center().y() - br.height()/2); gradient.setColorAt(0, buttonColor.lighter(110)); gradient.setColorAt(qreal(0.5), buttonColor); gradient.setColorAt(qreal(0.501), buttonColor.darker(102)); gradient.setColorAt(1, buttonColor.darker(115)); p->setBrush(gradient); } else { p->setBrush(Qt::NoBrush); } p->setPen(QPen(buttonColor.darker(280))); p->drawEllipse(br); p->setBrush(Qt::NoBrush); p->setPen(buttonColor.lighter(110)); p->drawEllipse(br.adjusted(1, 1, -1, -1)); if (option->state & QStyle::State_HasFocus) { QColor highlight = pal.highlight().color(); highlight.setHsv(highlight.hue(), qMin(160, highlight.saturation()), qMax(230, highlight.value())); highlight.setAlpha(127); p->setPen(QPen(highlight, 2.0)); p->setBrush(Qt::NoBrush); p->drawEllipse(br.adjusted(-1, -1, 1, 1)); } END_STYLE_PIXMAPCACHE QPointF dp = calcRadialPos(option, qreal(0.70)); buttonColor = buttonColor.lighter(104); buttonColor.setAlphaF(qreal(0.8)); const qreal ds = r/qreal(7.0); QRectF dialRect(dp.x() - ds, dp.y() - ds, 2*ds, 2*ds); QRadialGradient dialGradient(dialRect.center().x() + dialRect.width()/2, dialRect.center().y() + dialRect.width(), dialRect.width()*2, dialRect.center().x(), dialRect.center().y()); dialGradient.setColorAt(1, buttonColor.darker(140)); dialGradient.setColorAt(qreal(0.4), buttonColor.darker(120)); dialGradient.setColorAt(0, buttonColor.darker(110)); if (penSize > 3.0) { painter->setPen(QPen(QColor(0, 0, 0, 25), penSize)); painter->drawLine(calcRadialPos(option, qreal(0.90)), calcRadialPos(option, qreal(0.96))); } painter->setBrush(dialGradient); painter->setPen(QColor(255, 255, 255, 150)); painter->drawEllipse(dialRect.adjusted(-1, -1, 1, 1)); painter->setPen(QColor(0, 0, 0, 80)); painter->drawEllipse(dialRect); painter->restore(); }
static void drawDial ( const QStyleOptionSlider *option, QPainter *painter ) { QPalette pal = option->palette; QColor buttonColor = pal.button().color(); const int width = option->rect.width(); const int height = option->rect.height(); const bool enabled = option->state & QStyle::State_Enabled; qreal r = qMin(width, height) / 2; r -= r/50; const qreal penSize = r/20.0; painter->save(); painter->setRenderHint(QPainter::Antialiasing); // Draw notches if (option->subControls & QStyle::SC_DialTickmarks) { painter->setPen(option->palette.dark().color().darker(120)); painter->drawLines(calcLines(option)); } // Cache dial background QString a = QString::fromLatin1("qdial"); QRect rect = option->rect; QPixmap internalPixmapCache; QImage imageCache; QPainter *p = painter; QString unique = uniqueName((a), option, option->rect.size()); int txType = painter->deviceTransform().type() | painter->worldTransform().type(); bool doPixmapCache = txType <= QTransform::TxTranslate; if (doPixmapCache && QPixmapCache::find(unique, internalPixmapCache)) { painter->drawPixmap(option->rect.topLeft(), internalPixmapCache); } else { if (doPixmapCache) { rect.setRect(0, 0, option->rect.width(), option->rect.height()); imageCache = QImage(option->rect.size(), QImage::Format_ARGB32_Premultiplied); imageCache.fill(0); p = new QPainter(&imageCache); } //--BEGIN_STYLE_PIXMAPCACHE(QString::fromLatin1("qdial")); p->setRenderHint(QPainter::Antialiasing); const qreal d_ = r / 6; const qreal dx = option->rect.x() + d_ + (width - 2 * r) / 2 + 1; const qreal dy = option->rect.y() + d_ + (height - 2 * r) / 2 + 1; QRectF br = QRectF(dx + 0.5, dy + 0.5, int(r * 2 - 2 * d_ - 2), int(r * 2 - 2 * d_ - 2)); buttonColor.setHsv(buttonColor .hue(), qMin(140, buttonColor .saturation()), qMax(180, buttonColor.value())); QColor shadowColor(0, 0, 0, 20); if (enabled) { // Drop shadow qreal shadowSize = qMax(1.0, penSize/2.0); QRectF shadowRect= br.adjusted(-2*shadowSize, -2*shadowSize, 2*shadowSize, 2*shadowSize); QRadialGradient shadowGradient(shadowRect.center().x(), shadowRect.center().y(), shadowRect.width()/2.0, shadowRect.center().x(), shadowRect.center().y()); shadowGradient.setColorAt(qreal(0.91), QColor(0, 0, 0, 40)); shadowGradient.setColorAt(qreal(1.0), Qt::transparent); p->setBrush(shadowGradient); p->setPen(Qt::NoPen); p->translate(shadowSize, shadowSize); p->drawEllipse(shadowRect); p->translate(-shadowSize, -shadowSize); // Main gradient QRadialGradient gradient(br.center().x() - br.width()/3, dy, br.width()*1.3, br.center().x(), br.center().y() - br.height()/2); gradient.setColorAt(0, buttonColor.lighter(110)); gradient.setColorAt(qreal(0.5), buttonColor); gradient.setColorAt(qreal(0.501), buttonColor.darker(102)); gradient.setColorAt(1, buttonColor.darker(115)); p->setBrush(gradient); } else { p->setBrush(Qt::NoBrush); } p->setPen(QPen(buttonColor.darker(280))); p->drawEllipse(br); p->setBrush(Qt::NoBrush); p->setPen(buttonColor.lighter(110)); p->drawEllipse(br.adjusted(1, 1, -1, -1)); if (option->state & QStyle::State_HasFocus) { QColor highlight = pal.highlight().color(); highlight.setHsv(highlight.hue(), qMin(160, highlight.saturation()), qMax(230, highlight.value())); highlight.setAlpha(127); p->setPen(QPen(highlight, 2.0)); p->setBrush(Qt::NoBrush); p->drawEllipse(br.adjusted(-1, -1, 1, 1)); } //--END_STYLE_PIXMAPCACHE if (doPixmapCache) { p->end(); delete p; internalPixmapCache = QPixmap::fromImage(imageCache); painter->drawPixmap(option->rect.topLeft(), internalPixmapCache); QPixmapCache::insert(unique, internalPixmapCache); } } QPointF dp = calcRadialPos(option, qreal(0.70)); buttonColor = buttonColor.lighter(104); buttonColor.setAlphaF(qreal(0.8)); const qreal ds = r/qreal(7.0); QRectF dialRect(dp.x() - ds, dp.y() - ds, 2*ds, 2*ds); QRadialGradient dialGradient(dialRect.center().x() + dialRect.width()/2, dialRect.center().y() + dialRect.width(), dialRect.width()*2, dialRect.center().x(), dialRect.center().y()); dialGradient.setColorAt(1, buttonColor.darker(140)); dialGradient.setColorAt(qreal(0.4), buttonColor.darker(120)); dialGradient.setColorAt(0, buttonColor.darker(110)); if (penSize > 3.0) { painter->setPen(QPen(QColor(0, 0, 0, 25), penSize)); painter->drawLine(calcRadialPos(option, qreal(0.90)), calcRadialPos(option, qreal(0.96))); } painter->setBrush(dialGradient); painter->setPen(QColor(255, 255, 255, 150)); painter->drawEllipse(dialRect.adjusted(-1, -1, 1, 1)); painter->setPen(QColor(0, 0, 0, 80)); painter->drawEllipse(dialRect); painter->restore(); }