File indexing completed on 2024-12-22 04:16:22

 /*
  *  SPDX-FileCopyrightText: 2008-2012 Lukáš Tvrdý <lukast.dev@gmail.com>
  *
  *  SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #include "kis_spray_paintop.h"
 #include "kis_spray_paintop_settings.h"
 
 #include <cmath>
 
 #include <QRect>
 #include <kis_global.h>
 #include <kis_paint_device.h>
 #include <kis_painter.h>
 #include <kis_types.h>
 #include <brushengine/kis_paintop.h>
 #include <kis_node.h>
 
 #include <kis_fixed_paint_device.h>
 #include <kis_brush_option.h>
 #include <kis_lod_transform.h>
 #include <kis_paintop_plugin_utils.h>
 #include <KoResourceLoadResult.h>
 
 
 KisSprayPaintOp::KisSprayPaintOp(const KisPaintOpSettingsSP settings, KisPainter *painter, KisNodeSP node, KisImageSP image)
     : KisPaintOp(painter)
     , m_sprayOpOption(settings.data())
     , m_isPresetValid(true)
     , m_rotationOption(settings.data())
     , m_sizeOption(settings.data())
     , m_opacityOption(settings.data())
     , m_rateOption(settings.data())
     , m_node(node)
     
 {
     Q_ASSERT(settings);
     Q_ASSERT(painter);
     Q_UNUSED(image);
 
     m_airbrushData.read(settings.data());
 
     m_brushOption.readOptionSetting(settings, settings->resourcesInterface(), settings->canvasResourcesInterface());
 
     m_colorProperties.read(settings.data());
     // create the actual distribution objects
     m_sprayOpOption.updateDistributions();
     // first load tip properties as shape properties are dependent on diameter/scale/aspect
     m_shapeProperties.read(settings.data());
 
     // TODO: what to do with proportional sizes?
     m_shapeDynamicsProperties.read(settings.data());
 
     if (!m_shapeProperties.enabled && !m_brushOption.brush()) {
         // in case the preset does not contain the definition for KisBrush
         m_isPresetValid = false;
         dbgKrita << "Preset is not valid. Painting is not possible. Use the preset editor to fix current brush engine preset.";
     }
 
     m_sprayBrush.setProperties(&m_sprayOpOption.data, &m_colorProperties,
                                &m_shapeProperties, &m_shapeDynamicsProperties, m_brushOption.brush());
 
     m_sprayBrush.setFixedDab(cachedDab());
 
     // spacing
     if ((m_sprayOpOption.data.diameter * 0.5) > 1) {
         m_ySpacing = m_xSpacing = m_sprayOpOption.data.diameter * 0.5 * m_sprayOpOption.data.spacing;
     }
     else {
         m_ySpacing = m_xSpacing = 1.0;
     }
     m_spacing = m_xSpacing;
 }
 
 KisSprayPaintOp::~KisSprayPaintOp()
 {
 }
 
 QList<KoResourceLoadResult> KisSprayPaintOp::prepareLinkedResources(const KisPaintOpSettingsSP settings, KisResourcesInterfaceSP resourcesInterface)
 {
     KisBrushOptionProperties brushOption;
     return brushOption.prepareLinkedResources(settings, resourcesInterface);
 }
 
 KisSpacingInformation KisSprayPaintOp::paintAt(const KisPaintInformation& info)
 {
     if (!painter() || !m_isPresetValid) {
         return KisSpacingInformation(m_spacing);
     }
 
     if (!m_dab) {
         m_dab = source()->createCompositionSourceDevice();
     }
     else {
         m_dab->clear();
     }
 
     qreal rotation = m_rotationOption.apply(info);
     quint8 origOpacity = m_opacityOption.apply(painter(), info);
     // Spray Brush is capable of working with zero scale,
     // so no additional checks for 'zero'ness are needed
     const qreal scale = m_sizeOption.apply(info);
     const qreal lodScale = KisLodTransform::lodToScale(painter()->device());
 
 
     m_sprayBrush.paint(m_dab,
                        m_node->paintDevice(),
                        info,
                        rotation,
                        scale, lodScale,
                        painter()->paintColor(),
                        painter()->backgroundColor());
 
     QRect rc = m_dab->extent();
     painter()->bitBlt(rc.topLeft(), m_dab, rc);
     painter()->renderMirrorMask(rc, m_dab);
     painter()->setOpacity(origOpacity);
 
     return computeSpacing(info, lodScale);
 }
 
 KisSpacingInformation KisSprayPaintOp::updateSpacingImpl(const KisPaintInformation &info) const
 {
     return computeSpacing(info, KisLodTransform::lodToScale(painter()->device()));
 }
 
 KisTimingInformation KisSprayPaintOp::updateTimingImpl(const KisPaintInformation &info) const
 {
     return KisPaintOpPluginUtils::effectiveTiming(&m_airbrushData, &m_rateOption, info);
 }
 
 KisSpacingInformation KisSprayPaintOp::computeSpacing(const KisPaintInformation &info,
                                                       qreal lodScale) const
 {
     return KisPaintOpPluginUtils::effectiveSpacing(1.0, 1.0, true, 0.0, false,
                                                    m_spacing * lodScale, false, 1.0, lodScale,
                                                    &m_airbrushData, nullptr, info);
 }