void Layer::dab(int contextId, const Brush &brush, const Point &point)
{
Brush effective_brush = brush;
Layer *l = this;
if(!brush.incremental()) {
// Indirect brush: use a sublayer
l = getSubLayer(contextId, brush.blendingMode(), brush.opacity(1) * 255);
effective_brush.setOpacity(1.0);
effective_brush.setOpacity2(brush.isOpacityVariable() ? 0.0 : 1.0);
effective_brush.setBlendingMode(1);
} else if(contextId<0) {
// Special case: negative context IDs are temporary overlay strokes
l = getSubLayer(contextId, brush.blendingMode(), 255);
effective_brush.setBlendingMode(1);
}
Point p = point;
if(!effective_brush.subpixel()) {
p.setX(qFloor(p.x()));
p.setY(qFloor(p.y()));
}
l->directDab(effective_brush, BrushMaskGenerator::cached(effective_brush), p);
if(_owner)
_owner->notifyAreaChanged();
}
/**
* Draw a line using either drawSoftLine or drawHardLine, depending on
* the subpixel hint of the brush.
* @param context drawing context id (needed for indirect drawing)
*/
void Layer::drawLine(int contextId, const Brush& brush, const Point& from, const Point& to, qreal &distance)
{
Brush effective_brush = brush;
Layer *l = this;
if(!brush.incremental()) {
// Indirect brush: use a sublayer
l = getSubLayer(contextId, brush.blendingMode(), brush.opacity(1) * 255);
effective_brush.setOpacity(1.0);
effective_brush.setOpacity2(brush.isOpacityVariable() ? 0.0 : 1.0);
effective_brush.setBlendingMode(1);
} else if(contextId<0) {
// Special case: negative context IDs are temporary overlay strokes
l = getSubLayer(contextId, brush.blendingMode(), 255);
effective_brush.setBlendingMode(1);
}
const BrushMaskGenerator &bmg = BrushMaskGenerator::cached(effective_brush);
if(effective_brush.subpixel())
l->drawSoftLine(effective_brush, bmg, from, to, distance);
else
l->drawHardLine(effective_brush, bmg, from, to, distance);
if(_owner)
_owner->notifyAreaChanged();
}
/**
* Draw a line using either drawSoftLine or drawHardLine, depending on
* the subpixel hint of the brush.
* @param context drawing context id (needed for indirect drawing)
*/
void Layer::drawLine(int contextId, const Brush& brush, const Point& from, const Point& to, StrokeState &state)
{
Brush effective_brush = brush;
Layer *l = this;
if(!brush.incremental()) {
// Indirect brush: use a sublayer
l = getSubLayer(contextId, brush.blendingMode(), brush.opacity(1) * 255);
effective_brush.setOpacity(1.0);
effective_brush.setOpacity2(brush.isOpacityVariable() ? 0.0 : 1.0);
effective_brush.setBlendingMode(BlendMode::MODE_NORMAL);
} else if(contextId<0) {
// Special case: negative context IDs are temporary overlay strokes
l = getSubLayer(contextId, brush.blendingMode(), 255);
effective_brush.setBlendingMode(BlendMode::MODE_NORMAL);
}
if(effective_brush.subpixel())
l->drawSoftLine(effective_brush, from, to, state);
else
l->drawHardLine(effective_brush, from, to, state);
if(_owner)
_owner->notifyAreaChanged();
}
bool Brush::operator==(const Brush& brush) const
{
return radius1() == brush.radius1() && radius2() == brush.radius2() &&
qAbs(hardness1() - brush.hardness1()) <= 1.0/256.0 &&
qAbs(hardness2() - brush.hardness2()) <= 1.0/256.0 &&
qAbs(opacity1() - brush.opacity1()) <= 1.0/256.0 &&
qAbs(opacity2() - brush.opacity2()) <= 1.0/256.0 &&
color1() == brush.color1() &&
color2() == brush.color2() &&
spacing() == brush.spacing() &&
subpixel() == brush.subpixel() &&
incremental() == brush.incremental() &&
blendingMode() == brush.blendingMode();
}