Warning, file /graphics/krita/plugins/paintops/tangentnormal/kis_tangent_normal_paintop.cpp was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

 /*
  *  SPDX-FileCopyrightText: 2015 Wolthera van Hövell tot Westerflier <griffinvalley@gmail.com>
  *
  *  SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #include "kis_tangent_normal_paintop.h"
 
 #include <QRect>
 
 #include <KoColorSpaceRegistry.h>
 #include <KoColor.h>
 
 #include <kis_brush.h>
 #include <kis_paint_device.h>
 #include <kis_painter.h>
 #include <kis_node.h>
 #include <kis_brush_based_paintop_settings.h>
 #include <kis_fixed_paint_device.h>
 #include <kis_image.h>
 #include <kis_lod_transform.h>
 #include <kis_paintop_plugin_utils.h>
 
 
 KisTangentNormalPaintOp::KisTangentNormalPaintOp(const KisPaintOpSettingsSP settings, KisPainter* painter, KisNodeSP node, KisImageSP image)
     : KisBrushBasedPaintOp(settings, painter)
     , m_tangentTiltOption(settings.data())
     , m_opacityOption(settings.data(), node)
     , m_flowOption(settings.data())
     , m_sizeOption(settings.data())
     , m_spacingOption(settings.data())
     , m_softnessOption(settings.data())
     , m_sharpnessOption(settings.data())
     , m_scatterOption(settings.data())
     , m_rotationOption(settings.data())
     , m_rateOption(settings.data())
     , m_tempDev(painter->device()->createCompositionSourceDevice())
 
 {
     Q_UNUSED(image);
     //Init, read settings, etc//
     m_airbrushData.read(settings.data());
 
     m_dabCache->setSharpnessPostprocessing(&m_sharpnessOption);
     m_rotationOption.applyFanCornersInfo(this);
 }
 
 KisTangentNormalPaintOp::~KisTangentNormalPaintOp()
 {
     //destroy things here//
 }
 
 KisSpacingInformation KisTangentNormalPaintOp::paintAt(const KisPaintInformation& info)
 {
     /*
      * For the color, the precision of tilt is only 60x60, and the precision of direction and rotation are 360 and 360*90.
      * You can't get more precise than 8bit. Therefore, we will check if the current space is RGB,
      * if so we request a profile with that space and 8bit bit depth, if not, just sRGB
      */
     KoColor currentColor = painter()->paintColor();
     QString currentSpace = currentColor.colorSpace()->colorModelId().id();
     const KoColorSpace* rgbColorSpace = KoColorSpaceRegistry::instance()->rgb8();
     if (currentSpace != "RGBA") {
         rgbColorSpace = KoColorSpaceRegistry::instance()->rgb8();
     } else {
         rgbColorSpace = currentColor.colorSpace();
     }
     QVector <float> channelValues(4);
     qreal r, g, b;
 
     if (currentColor.colorSpace()->colorDepthId().id()=="F16" || currentColor.colorSpace()->colorDepthId().id()=="F32"){
         channelValues[0] = 0.5;//red
         channelValues[1] = 0.5;//green
         channelValues[2] = 1.0;//blue
         channelValues[3] = 1.0;//alpha, leave alone.
 
 
         m_tangentTiltOption.apply(info, &r, &g, &b);
 
         channelValues[0] = r;//red
         channelValues[1] = g;//green
         channelValues[2] = b;//blue
     } else {
         channelValues[0] = 1.0;//blue
         channelValues[1] = 0.5;//green
         channelValues[2] = 0.5;//red
         channelValues[3] = 1.0;//alpha, leave alone.
 
         m_tangentTiltOption.apply(info, &r, &g, &b);
 
         channelValues[0] = b;//blue
         channelValues[1] = g;//green
         channelValues[2] = r;//red
     }
 
     quint8 data[MAX_PIXEL_SIZE];
     rgbColorSpace->fromNormalisedChannelsValue(data, channelValues);
     KoColor color(data, rgbColorSpace);//Should be default RGB(0.5,0.5,1.0)
     //draw stuff here, return kisspacinginformation.
     KisBrushSP brush = m_brush;
 
     if (!painter()->device() || !brush || !brush->canPaintFor(info)) {
         return KisSpacingInformation(1.0);
     }
 
     qreal scale    = m_sizeOption.apply(info);
     scale *= KisLodTransform::lodToScale(painter()->device());
     qreal rotation = m_rotationOption.apply(info);
     if (checkSizeTooSmall(scale)) return KisSpacingInformation();
     KisDabShape shape(scale, 1.0, rotation);
 
 
     QPointF cursorPos =
             m_scatterOption.apply(info,
                                   brush->maskWidth(shape, 0, 0, info),
                                   brush->maskHeight(shape, 0, 0, info));
 
     m_maskDab =
             m_dabCache->fetchDab(rgbColorSpace, color, cursorPos,
                                  shape,
                                  info, m_softnessOption.apply(info),
                                  &m_dstDabRect);
 
     if (m_dstDabRect.isEmpty()) return KisSpacingInformation(1.0);
 
     QRect dabRect = m_maskDab->bounds();
 
     // sanity check
     Q_ASSERT(m_dstDabRect.size() == dabRect.size());
     Q_UNUSED(dabRect);
 
     quint8  oldOpacity = painter()->opacity();
     QString oldCompositeOpId = painter()->compositeOpId();
 
 
     m_opacityOption.apply(painter(), info);
     //paint with the default color? Copied this from color smudge.//
     //painter()->setCompositeOp(COMPOSITE_COPY);
     //painter()->fill(0, 0, m_dstDabRect.width(), m_dstDabRect.height(), color);
     painter()->bltFixed(m_dstDabRect.topLeft(), m_maskDab, m_maskDab->bounds());
     painter()->renderMirrorMaskSafe(m_dstDabRect, m_maskDab, !m_dabCache->needSeparateOriginal());
 
     // restore original opacity and composite mode values
     painter()->setOpacity(oldOpacity);
     painter()->setCompositeOpId(oldCompositeOpId);
 
     return computeSpacing(info, scale, rotation);
 }
 
 KisSpacingInformation KisTangentNormalPaintOp::updateSpacingImpl(const KisPaintInformation &info) const
 {
     qreal scale = m_sizeOption.apply(info) * KisLodTransform::lodToScale(painter()->device());
     qreal rotation = m_rotationOption.apply(info);
     return computeSpacing(info, scale, rotation);
 }
 
 KisTimingInformation KisTangentNormalPaintOp::updateTimingImpl(const KisPaintInformation &info) const
 {
     return KisPaintOpPluginUtils::effectiveTiming(&m_airbrushData, &m_rateOption, info);
 }
 
 KisSpacingInformation KisTangentNormalPaintOp::computeSpacing(const KisPaintInformation &info,
                                                               qreal scale, qreal rotation) const
 {
     return effectiveSpacing(scale, rotation, &m_airbrushData, &m_spacingOption, info);
 }
 
 void KisTangentNormalPaintOp::paintLine(const KisPaintInformation& pi1, const KisPaintInformation& pi2, KisDistanceInformation *currentDistance)
 {
     if (m_sharpnessOption.isChecked() && m_brush && (m_brush->width() == 1) && (m_brush->height() == 1)) {
 
         if (!m_lineCacheDevice) {
             m_lineCacheDevice = m_tempDev;
         }
         else {
             m_lineCacheDevice->clear();
         }
 
         KisPainter p(m_lineCacheDevice);
         KoColor currentColor = painter()->paintColor();
         QString currentSpace = currentColor.colorSpace()->colorModelId().id();
         const KoColorSpace* rgbColorSpace = KoColorSpaceRegistry::instance()->rgb8();
         if (currentSpace != "RGBA") {
             rgbColorSpace = KoColorSpaceRegistry::instance()->rgb8();
         } else {
             rgbColorSpace = currentColor.colorSpace();
         }
         QVector <float> channelValues(4);
         qreal r, g, b;
 
         if (currentColor.colorSpace()->colorDepthId().id()=="F16" || currentColor.colorSpace()->colorDepthId().id()=="F32"){
             channelValues[0] = 0.5;//red
             channelValues[1] = 0.5;//green
             channelValues[2] = 1.0;//blue
             channelValues[3] = 1.0;//alpha, leave alone.
 
 
             m_tangentTiltOption.apply(pi2, &r, &g, &b);
 
             channelValues[0] = r;//red
             channelValues[1] = g;//green
             channelValues[2] = b;//blue
         } else {
             channelValues[0] = 1.0;//blue
             channelValues[1] = 0.5;//green
             channelValues[2] = 0.5;//red
             channelValues[3] = 1.0;//alpha, leave alone.
 
             m_tangentTiltOption.apply(pi2, &r, &g, &b);
 
             channelValues[0] = b;//blue
             channelValues[1] = g;//green
             channelValues[2] = r;//red
         }
 
         quint8 data[4];
         rgbColorSpace->fromNormalisedChannelsValue(data, channelValues);
         KoColor color(data, rgbColorSpace);
         p.setPaintColor(color);
         p.drawDDALine(pi1.pos(), pi2.pos());
 
         QRect rc = m_lineCacheDevice->extent();
         painter()->bitBlt(rc.x(), rc.y(), m_lineCacheDevice, rc.x(), rc.y(), rc.width(), rc.height());
         painter()->renderMirrorMask(rc, m_lineCacheDevice);
     }
     else {
         KisPaintOp::paintLine(pi1, pi2, currentDistance);
     }
 }