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kdecoration/breezedecoration.cpp
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| 24 | #include "breeze.h" | 24 | #include "breeze.h" | ||
| 25 | #include "breezesettingsprovider.h" | 25 | #include "breezesettingsprovider.h" | ||
| 26 | #include "config-breeze.h" | 26 | #include "config-breeze.h" | ||
| 27 | #include "config/breezeconfigwidget.h" | 27 | #include "config/breezeconfigwidget.h" | ||
| 28 | 28 | | |||
| 29 | #include "breezebutton.h" | 29 | #include "breezebutton.h" | ||
| 30 | #include "breezesizegrip.h" | 30 | #include "breezesizegrip.h" | ||
| 31 | 31 | | |||
| 32 | #include "breezeboxshadowhelper.h" | 32 | #include "breezeboxshadowrenderer.h" | ||
| 33 | 33 | | |||
| 34 | #include <KDecoration2/DecoratedClient> | 34 | #include <KDecoration2/DecoratedClient> | ||
| 35 | #include <KDecoration2/DecorationButtonGroup> | 35 | #include <KDecoration2/DecorationButtonGroup> | ||
| 36 | #include <KDecoration2/DecorationSettings> | 36 | #include <KDecoration2/DecorationSettings> | ||
| 37 | #include <KDecoration2/DecorationShadow> | 37 | #include <KDecoration2/DecorationShadow> | ||
| 38 | 38 | | |||
| 39 | #include <KConfigGroup> | 39 | #include <KConfigGroup> | ||
| 40 | #include <KColorUtils> | 40 | #include <KColorUtils> | ||
| ▲ Show 20 Lines • Show All 683 Lines • ▼ Show 20 Line(s) | 714 | { | |||
| 724 | } | 724 | } | ||
| 725 | 725 | | |||
| 726 | auto withOpacity = [](const QColor &color, qreal opacity) -> QColor { | 726 | auto withOpacity = [](const QColor &color, qreal opacity) -> QColor { | ||
| 727 | QColor c(color); | 727 | QColor c(color); | ||
| 728 | c.setAlphaF(opacity); | 728 | c.setAlphaF(opacity); | ||
| 729 | return c; | 729 | return c; | ||
| 730 | }; | 730 | }; | ||
| 731 | 731 | | |||
| 732 | // In order to properly render a box shadow with a given radius `shadowSize`, | 732 | const QSize boxSize = BoxShadowRenderer::minimumRequiredBoxSize(params.shadow1.radius) | ||
| 733 | // the box size should be at least `2 * QSize(shadowSize, shadowSize)`. | 733 | .expandedTo(BoxShadowRenderer::minimumRequiredBoxSize(params.shadow2.radius)); | ||
| 734 | const int shadowSize = qMax(params.shadow1.radius, params.shadow2.radius); | | |||
| 735 | const QRect box(shadowSize, shadowSize, 2 * shadowSize + 1, 2 * shadowSize + 1); | | |||
| 736 | const QRect rect = box.adjusted(-shadowSize, -shadowSize, shadowSize, shadowSize); | | |||
| 737 | 734 | | |||
| 738 | QImage shadow(rect.size(), QImage::Format_ARGB32_Premultiplied); | 735 | BoxShadowRenderer shadowRenderer; | ||
| 739 | shadow.fill(Qt::transparent); | 736 | shadowRenderer.setBorderRadius(Metrics::Frame_FrameRadius + 0.5); | ||
| 740 | 737 | shadowRenderer.setBoxSize(boxSize); | |||
| 741 | QPainter painter(&shadow); | 738 | shadowRenderer.setDevicePixelRatio(1.0); // TODO: Create HiDPI shadows? | ||
| 742 | painter.setRenderHint(QPainter::Antialiasing); | | |||
| 743 | 739 | | |||
| 744 | const qreal strength = static_cast<qreal>(g_shadowStrength) / 255.0; | 740 | const qreal strength = static_cast<qreal>(g_shadowStrength) / 255.0; | ||
| 745 | 741 | shadowRenderer.addShadow(params.shadow1.offset, params.shadow1.radius, | |||
| 746 | // Draw the "shape" shadow. | | |||
| 747 | BoxShadowHelper::boxShadow( | | |||
| 748 | &painter, | | |||
| 749 | box, | | |||
| 750 | params.shadow1.offset, | | |||
| 751 | params.shadow1.radius, | | |||
| 752 | withOpacity(g_shadowColor, params.shadow1.opacity * strength)); | 742 | withOpacity(g_shadowColor, params.shadow1.opacity * strength)); | ||
| 753 | 743 | shadowRenderer.addShadow(params.shadow2.offset, params.shadow2.radius, | |||
| 754 | // Draw the "contrast" shadow. | | |||
| 755 | BoxShadowHelper::boxShadow( | | |||
| 756 | &painter, | | |||
| 757 | box, | | |||
| 758 | params.shadow2.offset, | | |||
| 759 | params.shadow2.radius, | | |||
| 760 | withOpacity(g_shadowColor, params.shadow2.opacity * strength)); | 744 | withOpacity(g_shadowColor, params.shadow2.opacity * strength)); | ||
| 761 | 745 | | |||
| 746 | QImage shadowTexture = shadowRenderer.render(); | ||||
| 747 | | ||||
| 748 | QPainter painter(&shadowTexture); | ||||
| 749 | painter.setRenderHint(QPainter::Antialiasing); | ||||
| 750 | | ||||
| 751 | const QRect outerRect = shadowTexture.rect(); | ||||
| 752 | | ||||
| 753 | QRect boxRect(QPoint(0, 0), boxSize); | ||||
| 754 | boxRect.moveCenter(outerRect.center()); | ||||
| 755 | | ||||
| 762 | // Mask out inner rect. | 756 | // Mask out inner rect. | ||
| 763 | const QMargins padding = QMargins( | 757 | const QMargins padding = QMargins( | ||
| 764 | shadowSize - Metrics::Shadow_Overlap - params.offset.x(), | 758 | boxRect.left() - outerRect.left() - Metrics::Shadow_Overlap - params.offset.x(), | ||
| 765 | shadowSize - Metrics::Shadow_Overlap - params.offset.y(), | 759 | boxRect.top() - outerRect.top() - Metrics::Shadow_Overlap - params.offset.y(), | ||
| 766 | shadowSize - Metrics::Shadow_Overlap + params.offset.x(), | 760 | outerRect.right() - boxRect.right() - Metrics::Shadow_Overlap + params.offset.x(), | ||
| 767 | shadowSize - Metrics::Shadow_Overlap + params.offset.y()); | 761 | outerRect.bottom() - boxRect.bottom() - Metrics::Shadow_Overlap + params.offset.y()); | ||
| 768 | const QRect innerRect = rect - padding; | 762 | const QRect innerRect = outerRect - padding; | ||
| 769 | 763 | | |||
| 770 | painter.setPen(Qt::NoPen); | 764 | painter.setPen(Qt::NoPen); | ||
| 771 | painter.setBrush(Qt::black); | 765 | painter.setBrush(Qt::black); | ||
| 772 | painter.setCompositionMode(QPainter::CompositionMode_DestinationOut); | 766 | painter.setCompositionMode(QPainter::CompositionMode_DestinationOut); | ||
| 773 | painter.drawRoundedRect( | 767 | painter.drawRoundedRect( | ||
| 774 | innerRect, | 768 | innerRect, | ||
| 775 | Metrics::Frame_FrameRadius + 0.5, | 769 | Metrics::Frame_FrameRadius + 0.5, | ||
| 776 | Metrics::Frame_FrameRadius + 0.5); | 770 | Metrics::Frame_FrameRadius + 0.5); | ||
| 777 | 771 | | |||
| 778 | // Draw outline. | 772 | // Draw outline. | ||
| 779 | painter.setPen(withOpacity(g_shadowColor, 0.2 * strength)); | 773 | painter.setPen(withOpacity(g_shadowColor, 0.2 * strength)); | ||
| 780 | painter.setBrush(Qt::NoBrush); | 774 | painter.setBrush(Qt::NoBrush); | ||
| 781 | painter.setCompositionMode(QPainter::CompositionMode_SourceOver); | 775 | painter.setCompositionMode(QPainter::CompositionMode_SourceOver); | ||
| 782 | painter.drawRoundedRect( | 776 | painter.drawRoundedRect( | ||
| 783 | innerRect, | 777 | innerRect, | ||
| 784 | Metrics::Frame_FrameRadius - 0.5, | 778 | Metrics::Frame_FrameRadius - 0.5, | ||
| 785 | Metrics::Frame_FrameRadius - 0.5); | 779 | Metrics::Frame_FrameRadius - 0.5); | ||
| 786 | 780 | | |||
| 787 | painter.end(); | 781 | painter.end(); | ||
| 788 | 782 | | |||
| 789 | g_sShadow = QSharedPointer<KDecoration2::DecorationShadow>::create(); | 783 | g_sShadow = QSharedPointer<KDecoration2::DecorationShadow>::create(); | ||
| 790 | g_sShadow->setPadding(padding); | 784 | g_sShadow->setPadding(padding); | ||
| 791 | g_sShadow->setInnerShadowRect(QRect(shadow.rect().center(), QSize(1, 1))); | 785 | g_sShadow->setInnerShadowRect(QRect(outerRect.center(), QSize(1, 1))); | ||
| 792 | g_sShadow->setShadow(shadow); | 786 | g_sShadow->setShadow(shadowTexture); | ||
| 793 | } | 787 | } | ||
| 794 | 788 | | |||
| 795 | setShadow(g_sShadow); | 789 | setShadow(g_sShadow); | ||
| 796 | } | 790 | } | ||
| 797 | 791 | | |||
| 798 | //_________________________________________________________________ | 792 | //_________________________________________________________________ | ||
| 799 | void Decoration::createSizeGrip() | 793 | void Decoration::createSizeGrip() | ||
| 800 | { | 794 | { | ||
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