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Diffstat (limited to 'qdialskulpturestyle.cpp')
| -rw-r--r-- | qdialskulpturestyle.cpp | 437 |
1 files changed, 0 insertions, 437 deletions
diff --git a/qdialskulpturestyle.cpp b/qdialskulpturestyle.cpp deleted file mode 100644 index 7c181a0..0000000 --- a/qdialskulpturestyle.cpp +++ /dev/null @@ -1,437 +0,0 @@ -/****************************************************************************** - - Skulpture - Classical Three-Dimensional Artwork for Qt 4 - - Copyright (c) 2007-2009 Christoph Feck <christoph@maxiom.de> - - This program is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License - as published by the Free Software Foundation; either version 2 - of the License, or (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along - with this program; if not, write to the Free Software Foundation, Inc., - 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - -*****************************************************************************/ -#include <cmath> -#include <QStyleOptionSlider> -#include <QPixmapCache> -#include <QPainter> - -#include "qdialskulpturestyle.hpp" - -#ifndef M_PI -#define M_PI 3.141592653589793f -#endif - -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) -{ - 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; - } - } - painter->drawPixmap(option->rect, pixmap); -} - -void -paintDialBase(QPainter *painter, const QStyleOption *option) -{ -// painter->fillRect(option->rect, Qt::red); -// painter->save(); -// painter->setRenderHint(QPainter::Antialiasing, true); - int d = qMin(option->rect.width(), option->rect.height()); -/* if (d > 20 && option->notchTarget > 0) { - d += -1; - } -*/ QRectF r((option->rect.width() - d) / 2.0, (option->rect.height() - d) / 2.0, d, d); - const qreal angle = option->direction == Qt::LeftToRight ? 135.0 : 45.0; -// const qreal angle = 90; - - painter->setPen(Qt::NoPen); - QColor border_color = option->palette.color(QPalette::Window); -#if 0 - { - QRadialGradient depth_gradient(r.center(), d / 2); -// depth_gradient.setColorAt(0.0, QColor(0, 0, 0, 255)); - depth_gradient.setColorAt(0.5, QColor(0, 0, 0, 255)); - depth_gradient.setColorAt(1.0, QColor(0, 0, 0, 0)); - painter->setBrush(depth_gradient); - painter->drawEllipse(r); - } -#endif -#if 1 - if (option->state & QStyle::State_HasFocus && option->state & QStyle::State_KeyboardFocusChange) { - painter->setBrush(option->palette.color(QPalette::Highlight).darker(180)); - r.adjust(1, 1, -1, -1); - painter->drawEllipse(r); - painter->setBrush(border_color); - r.adjust(1, 1, -1, -1); - painter->drawEllipse(r); - r.adjust(1, 1, -1, -1); - } else { - painter->setBrush(border_color); - r.adjust(1, 1, -1, -1); - painter->drawEllipse(r); - r.adjust(1, 1, -1, -1); - QConicalGradient border_gradient(r.center(), angle); - if (!(option->state & QStyle::State_Enabled)) { - border_color = border_color.lighter(120); - } - border_gradient.setColorAt(0.0, border_color.darker(180)); - border_gradient.setColorAt(0.3, border_color.darker(130)); - border_gradient.setColorAt(0.5, border_color.darker(170)); - border_gradient.setColorAt(0.7, border_color.darker(130)); - border_gradient.setColorAt(1.0, border_color.darker(180)); - painter->setBrush(border_gradient); -// painter->setBrush(Qt::blue); - painter->drawEllipse(r); - r.adjust(1, 1, -1, -1); - } - d -= 6; - - QColor dial_color; - if (option->state & QStyle::State_Enabled) { - dial_color = option->palette.color(QPalette::Button).lighter(101); - if (option->state & QStyle::State_MouseOver) { - dial_color = dial_color.lighter(103); - } - } else { - dial_color = option->palette.color(QPalette::Window); - } - qreal t = option->state & QStyle::State_Enabled ? 2.0 : 1.5; - if (1) { - // ###: work around Qt 4.3.0 bug? (this works for 4.3.1) - QConicalGradient border_gradient(r.center(), angle); - border_gradient.setColorAt(0.0, dial_color.lighter(120)); - border_gradient.setColorAt(0.2, dial_color); - border_gradient.setColorAt(0.5, dial_color.darker(130)); - border_gradient.setColorAt(0.8, dial_color); - border_gradient.setColorAt(1.0, dial_color.lighter(120)); - painter->setPen(QPen(border_gradient, t)); - } else { - painter->setPen(QPen(Qt::red, t)); - } -#if 0 - QLinearGradient dial_gradient(r.topLeft(), r.bottomLeft()); - dial_gradient.setColorAt(0.0, dial_color.darker(105)); - dial_gradient.setColorAt(0.5, dial_color.lighter(102)); - dial_gradient.setColorAt(1.0, dial_color.lighter(105)); -#elif 1 - QLinearGradient dial_gradient(option->direction == Qt::LeftToRight ? r.topLeft() : r.topRight(), option->direction == Qt::LeftToRight ? r.bottomRight() : r.bottomLeft()); -// QLinearGradient dial_gradient(r.topLeft(), r.bottomLeft()); - if (true || option->state & QStyle::State_Enabled) { -#if 1 - dial_gradient.setColorAt(0.0, dial_color.darker(106)); - dial_gradient.setColorAt(1.0, dial_color.lighter(104)); -#else - dial_gradient.setColorAt(0.0, dial_color.lighter(101)); - dial_gradient.setColorAt(0.5, dial_color.darker(103)); - dial_gradient.setColorAt(1.0, dial_color.lighter(104)); -#endif - } else { - dial_gradient.setColorAt(0.0, dial_color); - dial_gradient.setColorAt(1.0, dial_color); - } -#elif 0 - QConicalGradient dial_gradient(r.center(), angle); - dial_gradient.setColorAt(0.0, dial_color.lighter(102)); - dial_gradient.setColorAt(0.5, dial_color.darker(103)); - dial_gradient.setColorAt(1.0, dial_color.lighter(102)); -#else - QBrush dial_gradient(dial_color); -#endif - painter->setBrush(dial_gradient); - t = t / 2; - painter->drawEllipse(r.adjusted(t, t, -t, -t)); - -// painter->setPen(Qt::NoPen); -// painter->setBrush(dial_color); -// painter->drawEllipse(r.adjusted(d / 4, d / 4, - d / 4, - d / 4)); - -#if 0 - QLinearGradient border2_gradient(r.topLeft(), r.bottomRight()); - border2_gradient.setColorAt(1.0, dial_color.darker(425)); - border2_gradient.setColorAt(0.9, dial_color); - border2_gradient.setColorAt(0.0, dial_color.darker(400)); - painter->setPen(QPen(border2_gradient, 1.3)); - painter->setBrush(Qt::NoBrush); - painter->drawEllipse(r.adjusted(0.3, 0.3, -0.3, -0.3)); -#endif -// painter->restore(); -#endif -} - -void -paintCachedDialBase(QPainter *painter, const QStyleOptionSlider *option) -{ - bool useCache = UsePixmapCache; - QString pixmapName; - QRect r = option->rect; - int d = qMin(r.width(), r.height()); - - if (/* option->state & (QStyle::State_HasFocus | QStyle::State_MouseOver) ||*/ d > 128) { - useCache = false; - } - if (useCache) { - uint state = uint(option->state) & (QStyle::State_Enabled | QStyle::State_On | QStyle::State_MouseOver | QStyle::State_KeyboardFocusChange | QStyle::State_HasFocus); - if (!(state & QStyle::State_Enabled)) { - state &= ~(QStyle::State_MouseOver | QStyle::State_HasFocus | QStyle::State_KeyboardFocusChange); - } - // state &= ~(QStyle::State_HasFocus); - pixmapName.sprintf("scp-qdb-%x-%x-%llx-%x", state, option->direction, option->palette.cacheKey(), d); - } - paintIndicatorCached(painter, option, paintDialBase, useCache, pixmapName); -} - -void -paintIndicatorDial(QPainter *painter, const QStyleOptionSlider *option) -{ - int d = qMin(option->rect.width(), option->rect.height()); - QRect rect(option->rect.center() - QPoint((d - 1) / 2, (d - 1) / 2), QSize(d, d)); - QStyleOptionSlider opt; - opt.QStyleOption::operator=(*option); - opt.rect = rect; - paintCachedDialBase(painter, &opt); -} - -QColor -shaded_color(const QColor &color, int shade) -{ -#if 1 - const qreal contrast = 1.0; - int r, g, b; - color.getRgb(&r, &g, &b); - int gray = qGray(r, g, b); - gray = qMax(r, qMax(g, b)); - gray = (r + b + g + 3 * gray) / 6; - if (shade < 0) { - qreal k = 220.0 / 255.0 * shade; - k *= contrast; - int a = 255; - if (gray > 0) { - a = int(k * 255 / (0 - gray)); - if (a < 0) a = 0; - if (a > 255) a = 255; - } - return QColor(0, 0, 0, a); - } else { - qreal k = (255 - 220.0) / (255.0) * shade; - k *= contrast; - int a = 255; - if (gray < 255) { - a = int(k * 255 / (255 - gray)); - if (a < 0) a = 0; - if (a > 255) a = 255; - } - return QColor(255, 255, 255, a); - } -#else - if (shade < 0) { - return QColor(0, 0, 0, -shade); - } else { - return QColor(255, 255, 255, shade); - } -#endif -} - -static void -paintGrip(QPainter *painter, const QStyleOption *option) -{ -// 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; - QRectF rect(QRectF(option->rect).center() - QPointF(d / 2.0, d / 2.0), QSizeF(d, d)); - const qreal angle = option->direction == Qt::LeftToRight ? 135.0 : 45.0; -// const qreal angle = 90; - QColor color; - qreal opacity = 0.9; - - painter->save(); - painter->setPen(Qt::NoPen); - if (option->state & QStyle::State_Enabled) { - if (option->state & QStyle::State_Sunken) { - color = option->palette.color(QPalette::Highlight).darker(110); - } else { - color = option->palette.color(QPalette::Button); - } - } else { - color = option->palette.color(QPalette::Button); - opacity = 0.5; - } - - QConicalGradient gradient1(rect.center(), angle); - gradient1.setColorAt(0.0, shaded_color(color, -110)); - gradient1.setColorAt(0.25, shaded_color(color, -30)); - gradient1.setColorAt(0.5, shaded_color(color, 180)); - gradient1.setColorAt(0.75, shaded_color(color, -30)); - gradient1.setColorAt(1.0, shaded_color(color, -110)); - painter->setBrush(color); - painter->drawEllipse(rect); - painter->setBrush(gradient1); -#if (QT_VERSION >= QT_VERSION_CHECK(4, 2, 0)) - // ### merge opacity into color - painter->setOpacity(opacity); -#endif - painter->drawEllipse(rect); -#if (QT_VERSION >= QT_VERSION_CHECK(4, 2, 0)) - painter->setOpacity(1.0); - if (d > 2) { - QConicalGradient gradient2(rect.center(), angle); - gradient2.setColorAt(0.0, shaded_color(color, -40)); - gradient2.setColorAt(0.25, shaded_color(color, 0)); - gradient2.setColorAt(0.5, shaded_color(color, 210)); - gradient2.setColorAt(0.75, shaded_color(color, 0)); - gradient2.setColorAt(1.0, shaded_color(color, -40)); - rect.adjust(1, 1, -1, -1); - painter->setBrush(color); - painter->drawEllipse(rect); - painter->setBrush(gradient2); - painter->setOpacity(opacity); - painter->drawEllipse(rect); - painter->setOpacity(1.0); - if (d > 8) { - QConicalGradient gradient3(rect.center(), angle); - gradient3.setColorAt(0.0, shaded_color(color, -10)); - gradient3.setColorAt(0.25, shaded_color(color, 0)); - gradient3.setColorAt(0.5, shaded_color(color, 180)); - gradient3.setColorAt(0.75, shaded_color(color, 0)); - gradient3.setColorAt(1.0, shaded_color(color, -10)); - rect.adjust(2, 2, -2, -2); - painter->setBrush(color); - painter->drawEllipse(rect); - painter->setBrush(gradient3); - painter->setOpacity(opacity); - painter->drawEllipse(rect); - painter->setOpacity(1.0); - } - } -#endif - painter->restore(); -} - -void -paintCachedGrip(QPainter *painter, const QStyleOption *option, QPalette::ColorRole /*bgrole*/) -{ - bool useCache = UsePixmapCache; - QString pixmapName; - - if (/* option->state & (QStyle::State_HasFocus | QStyle::State_MouseOver) ||*/ option->rect.width() * option->rect.height() > 4096) { - useCache = false; - } - if (useCache) { - uint state = uint(option->state) & (QStyle::State_Enabled | QStyle::State_On | QStyle::State_MouseOver | QStyle::State_Sunken | QStyle::State_HasFocus); - if (!(state & QStyle::State_Enabled)) { - state &= ~(QStyle::State_MouseOver | QStyle::State_HasFocus); - } - state &= ~(QStyle::State_HasFocus); - 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); -} - -void -QDialSkulptureStyle::drawComplexControl( ComplexControl cc, - const QStyleOptionComplex *optc, - QPainter *painter, - const QWidget *widget) const -{ - - if (cc != QStyle::CC_Dial) { - QCommonStyle::drawComplexControl(cc, optc, painter, widget); - return; - } - - const QStyleOptionSlider *option = qstyleoption_cast<const QStyleOptionSlider *>(optc); - if (option == NULL) - return; - - int d = qMin(option->rect.width() & ~1, option->rect.height() & ~1); - QStyleOptionSlider opt = *option; - const QAbstractSlider *slider = NULL; - // always highlight knob if pressed (even if mouse is not over knob) - if ((option->state & QStyle::State_HasFocus) && (slider = qobject_cast<const QAbstractSlider *>(widget))) { - if (slider->isSliderDown()) { - opt.state |= QStyle::State_MouseOver; - } - } - - // tickmarks - opt.palette.setColor(QPalette::Inactive, QPalette::WindowText, QColor(80, 80, 80, 255)); - opt.palette.setColor(QPalette::Active, QPalette::WindowText, QColor(80, 80, 80, 255)); - opt.state &= ~QStyle::State_HasFocus; - opt.rect.setWidth(opt.rect.width() & ~1); - opt.rect.setHeight(opt.rect.height() & ~1); - //((QCommonStyle *) this)-> - QCommonStyle::drawComplexControl(QStyle::CC_Dial, &opt, painter, widget); - - // focus rectangle - if (option->state & QStyle::State_HasFocus) { - QStyleOptionFocusRect focus; - opt.state |= QStyle::State_HasFocus; - focus.QStyleOption::operator=(opt); - focus.rect.adjust(-1, -1, 1, 1); - //drawPrimitive(QStyle::PE_FrameFocusRect, &focus, painter, widget); - } - opt.palette = option->palette; - - // dial base - if (d <= 256) { - paintIndicatorDial(painter, &opt); - } else { - // large dials are slow to render, do not render them - } - - // dial knob - d -= 6; - int gripSize = (option->fontMetrics.height() / 4) * 2 - 1; - opt.rect.setSize(QSize(gripSize, gripSize)); - opt.rect.moveCenter(option->rect.center()); - // angle calculation from qcommonstyle.cpp (c) Trolltech 1992-2007, ASA. - qreal angle; - int sliderPosition = option->upsideDown ? option->sliderPosition : (option->maximum - option->sliderPosition); - int range = option->maximum - option->minimum; - if (!range) { - angle = M_PI / 2; - } else if (option->dialWrapping) { - angle = M_PI * 1.5 - (sliderPosition - option->minimum) * 2 * M_PI / range; - } else { - angle = (M_PI * 8 - (sliderPosition - option->minimum) * 10 * M_PI / range) / 6; - } - - 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); -} |