diff options
Diffstat (limited to 'qmidiplayer-desktop/qdialskulpturestyle.cpp')
| -rw-r--r-- | qmidiplayer-desktop/qdialskulpturestyle.cpp | 80 |
1 files changed, 47 insertions, 33 deletions
diff --git a/qmidiplayer-desktop/qdialskulpturestyle.cpp b/qmidiplayer-desktop/qdialskulpturestyle.cpp index 7c181a0..ba9e03f 100644 --- a/qmidiplayer-desktop/qdialskulpturestyle.cpp +++ b/qmidiplayer-desktop/qdialskulpturestyle.cpp @@ -20,9 +20,12 @@ *****************************************************************************/ #include <cmath> +#include <functional> #include <QStyleOptionSlider> #include <QPixmapCache> #include <QPainter> +#include <QPointF> +#include <QRectF> #include "qdialskulpturestyle.hpp" @@ -33,41 +36,41 @@ static const bool UsePixmapCache = true; static void -paintIndicatorCached(QPainter *painter, const QStyleOption *option, void (*paintIndicator)(QPainter *painter, const QStyleOption *option), bool useCache, const QString &pixmapName) +paintIndicatorCached(QPainter *painter, const QStyleOption *option, std::function<void(QPainter*,const QStyleOption*)> paintFunc, bool useCache, const QString &pixmapName) { - QPixmap pixmap; - - if (!useCache || !QPixmapCache::find(pixmapName, pixmap)) { - pixmap = QPixmap(option->rect.size()); -#if 1 - pixmap.fill(Qt::transparent); - // pixmap.fill(Qt::red); -#else - pixmap.fill(option->palette.color(QPalette::Window)); -#endif - QPainter p(&pixmap); - QStyleOption opt = *option; - opt.rect = QRect(QPoint(0, 0), option->rect.size()); - // p.setCompositionMode(QPainter::CompositionMode_Clear); - // p.setCompositionMode(QPainter::CompositionMode_Source); - // p.fillRect(opt.rect, Qt::transparent); - // p.setCompositionMode(QPainter::CompositionMode_SourceOver); - p.setFont(painter->font()); - p.setRenderHint(QPainter::Antialiasing, true); - paintIndicator(&p, &opt); - p.end(); - if (useCache) { - QPixmapCache::insert(pixmapName, pixmap); - // qDebug() << "inserted into cache:" << pixmapName; + QRect rect = option->rect; + QPixmap internalPixmapCache; + QImage imageCache; + QPainter *p = painter; + int txType = painter->deviceTransform().type() | painter->worldTransform().type(); + bool doPixmapCache = useCache && (!option->rect.isEmpty()) + && ((txType <= QTransform::TxTranslate) || (painter->deviceTransform().type() == QTransform::TxScale)); + if (doPixmapCache && QPixmapCache::find(pixmapName, &internalPixmapCache)) { + painter->drawPixmap(option->rect.topLeft(), internalPixmapCache); + } else { + if (doPixmapCache) { + rect.setRect(0, 0, option->rect.width(), option->rect.height()); + qreal pixelRatio=painter->device()->devicePixelRatioF(); + imageCache = QImage(option->rect.size() * pixelRatio, QImage::Format_ARGB32_Premultiplied); + imageCache.setDevicePixelRatio(pixelRatio); + imageCache.fill(0); + p = new QPainter(&imageCache); + } + paintFunc(p,option); + if (doPixmapCache) { + p->end(); + delete p; + internalPixmapCache = QPixmap::fromImage(imageCache); + painter->drawPixmap(option->rect.topLeft(), internalPixmapCache); + QPixmapCache::insert(pixmapName, internalPixmapCache); } } - painter->drawPixmap(option->rect, pixmap); } void paintDialBase(QPainter *painter, const QStyleOption *option) { -// painter->fillRect(option->rect, Qt::red); +// painter->fillRect(option->rect, Qt::red); // painter->save(); // painter->setRenderHint(QPainter::Antialiasing, true); int d = qMin(option->rect.width(), option->rect.height()); @@ -79,6 +82,7 @@ paintDialBase(QPainter *painter, const QStyleOption *option) // const qreal angle = 90; painter->setPen(Qt::NoPen); + painter->setRenderHint(QPainter::Antialiasing); QColor border_color = option->palette.color(QPalette::Window); #if 0 { @@ -268,7 +272,7 @@ shaded_color(const QColor &color, int shade) static void paintGrip(QPainter *painter, const QStyleOption *option) { -// painter->fillRect(option->rect, Qt::red); + //painter->fillRect(option->rect, Qt::red); int d = qMin(option->rect.width(), option->rect.height()); // good values are 3 (very small), 4 (small), 5 (good), 7 (large), 9 (huge) // int d = 5; @@ -279,6 +283,7 @@ paintGrip(QPainter *painter, const QStyleOption *option) qreal opacity = 0.9; painter->save(); + painter->setRenderHint(QPainter::Antialiasing); painter->setPen(Qt::NoPen); if (option->state & QStyle::State_Enabled) { if (option->state & QStyle::State_Sunken) { @@ -342,7 +347,7 @@ paintGrip(QPainter *painter, const QStyleOption *option) } void -paintCachedGrip(QPainter *painter, const QStyleOption *option, QPalette::ColorRole /*bgrole*/) +paintCachedGrip(QPainter *painter, const QStyleOption *option) { bool useCache = UsePixmapCache; QString pixmapName; @@ -359,7 +364,13 @@ paintCachedGrip(QPainter *painter, const QStyleOption *option, QPalette::ColorRo QByteArray colorName = option->palette.color(QPalette::Button).name().toLatin1(); pixmapName.sprintf("scp-isg-%x-%x-%s-%x-%x", state, option->direction, colorName.constData(), option->rect.width(), option->rect.height()); } - paintIndicatorCached(painter, option, paintGrip, useCache, pixmapName); + paintIndicatorCached(painter,option, + [=](QPainter *painter,const QStyleOption *option){ + QStyleOption opt(*option); + opt.rect.moveTo(0,0); + paintGrip(painter,&opt); + }, + useCache,pixmapName); } void @@ -394,7 +405,7 @@ QDialSkulptureStyle::drawComplexControl( ComplexControl cc, opt.state &= ~QStyle::State_HasFocus; opt.rect.setWidth(opt.rect.width() & ~1); opt.rect.setHeight(opt.rect.height() & ~1); - //((QCommonStyle *) this)-> + opt.rect.moveCenter(option->rect.center()); QCommonStyle::drawComplexControl(QStyle::CC_Dial, &opt, painter, widget); // focus rectangle @@ -409,7 +420,10 @@ QDialSkulptureStyle::drawComplexControl( ComplexControl cc, // dial base if (d <= 256) { - paintIndicatorDial(painter, &opt); + QStyleOptionSlider topt(opt); + topt.rect.adjust(2,2,-2,-2); + topt.rect.moveCenter(option->rect.center()); + paintIndicatorDial(painter, &topt); } else { // large dials are slow to render, do not render them } @@ -433,5 +447,5 @@ QDialSkulptureStyle::drawComplexControl( ComplexControl cc, qreal rr = d / 2.0 - gripSize - 2; opt.rect.translate(int(0.5 + rr * cos(angle)), int(0.5 - rr * sin(angle))); - paintCachedGrip(painter, &opt, option->state & QStyle::State_Enabled ? QPalette::Button : QPalette::Window); + paintCachedGrip(painter, &opt); } |