/**
* The annotation tool has fairly complex needs. Clicking on an existing
* annotation selects it, otherwise a new annotation is started.
*/
void Annotation::begin(const paintcore::Point& point, float zoom)
{
m_selectedId = owner.model()->annotations()->annotationAtPos(point.toPoint(), zoom);
m_p1 = point;
m_p2 = point;
m_isNew = m_selectedId==0;
if(m_selectedId>0) {
m_handle = owner.model()->annotations()->annotationHandleAt(m_selectedId, point.toPoint(), zoom);
owner.setActiveAnnotation(m_selectedId);
} else {
// No annotation, start creating a new one
// I don't want to create a new preview item just for annotations,
// so we create the preview annotation directly in the model. Since this
// doesn't affect the other annotations, it shouldn't case any problems.
// Also, we use a special ID for the preview object that is outside the protocol range.
m_selectedId = PREVIEW_ID;
owner.model()->annotations()->changeAnnotation(canvas::Annotation {
m_selectedId,
QString(),
QRect(m_p1.toPoint(), m_p1.toPoint() + QPoint(5,5)),
QColor(Qt::transparent)
}
);
m_handle = canvas::Annotation::RS_BOTTOMRIGHT;
}
}
/**
* Convert a dpcore::Point to network format. The
* reverse operation for this is in statetracker.cpp
* @param p
* @return
*/
protocol::PenPoint pointToProtocol(const paintcore::Point &point)
{
int32_t x = point.x() * 4.0;
int32_t y = point.y() * 4.0;
uint16_t p = point.pressure() * 0xffff;
return protocol::PenPoint(x, y, p);
}
void ColorPicker::motion(const paintcore::Point& point, bool constrain, bool center)
{
Q_UNUSED(constrain);
Q_UNUSED(center);
int layer=0;
if(settings().getColorPickerSettings()->pickFromLayer()) {
layer = this->layer();
}
scene().pickColor(point.x(), point.y(), layer, _bg);
}
void ColorPicker::motion(const paintcore::Point& point, bool constrain, bool center)
{
Q_UNUSED(constrain);
Q_UNUSED(center);
int layer=0;
if(owner.toolSettings()->getColorPickerSettings()->pickFromLayer()) {
layer = owner.activeLayer();
}
int size = owner.toolSettings()->getColorPickerSettings()->getSize();
owner.model()->pickColor(point.x(), point.y(), layer, size);
}
void FloodFill::begin(const paintcore::Point &point, float zoom)
{
// TODO do this in the layer thread?
Q_UNUSED(zoom);
FillSettings *ts = owner.toolSettings()->getFillSettings();
QColor color = owner.toolSettings()->foregroundColor();
QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
owner.model()->layerStack()->lock();
paintcore::FillResult fill = paintcore::floodfill(
owner.model()->layerStack(),
QPoint(point.x(), point.y()),
color,
ts->fillTolerance(),
owner.activeLayer(),
ts->sampleMerged()
);
owner.model()->layerStack()->unlock();
fill = paintcore::expandFill(fill, ts->fillExpansion(), color);
if(fill.image.isNull()) {
QApplication::restoreOverrideCursor();
return;
}
// If the target area is transparent, use the BEHIND compositing mode.
// This results in nice smooth blending with soft outlines, when the
// outline has different color than the fill.
paintcore::BlendMode::Mode mode = paintcore::BlendMode::MODE_NORMAL;
if(ts->underFill() && (fill.layerSeedColor & 0xff000000) == 0)
mode = paintcore::BlendMode::MODE_BEHIND;
// Flood fill is implemented using PutImage rather than a native command.
// This has the following advantages:
// - backward and forward compatibility: changes in the algorithm can be made freely
// - tolerates out-of-sync canvases (shouldn't normally happen, but...)
// - bugs don't crash/freeze other clients
//
// The disadvantage is increased bandwith consumption. However, this is not as bad
// as one might think: the effective bit-depth of the bitmap is 1bpp and most fills
// consist of large solid areas, meaning they should compress ridiculously well.
QList<protocol::MessagePtr> msgs;
msgs << protocol::MessagePtr(new protocol::UndoPoint(0));
msgs << net::command::putQImage(0, owner.activeLayer(), fill.x, fill.y, fill.image, mode);
owner.client()->sendMessages(msgs);
QApplication::restoreOverrideCursor();
}
void CanvasView::onPenDown(const paintcore::Point &p, bool right)
{
if(_scene->hasImage() && !_locked) {
if(_specialpenmode) {
// quick color pick mode
_scene->pickColor(p.x(), p.y(), 0, right);
} else {
if(_smoothing>0 && _current_tool->allowSmoothing())
_smoother.addPoint(p);
else
_current_tool->begin(p, right, _zoom);
}
}
}
void CanvasView::onPenMove(const paintcore::Point &p, bool right, bool shift, bool alt)
{
if(_scene->hasImage() && !_locked) {
if(_specialpenmode) {
// quick color pick mode
_scene->pickColor(p.x(), p.y(), 0, right);
} else {
if(_smoothing>0 && _current_tool->allowSmoothing()) {
_smoother.addPoint(p);
if(_smoother.hasSmoothPoint()) {
if(_smoother.isFirstSmoothPoint())
_current_tool->begin(_smoother.smoothPoint(), right, _zoom);
else
_current_tool->motion(_smoother.smoothPoint(), shift, alt);
}
} else {
_current_tool->motion(p, shift, alt);
}
}
}
}
void CanvasView::updateOutline(paintcore::Point point) {
if(!_subpixeloutline) {
point.setX(qFloor(point.x()));
point.setY(qFloor(point.y()));
}
if(_enableoutline && _showoutline && !_locked && !point.roughlySame(_prevoutlinepoint)) {
QList<QRectF> rect;
rect.append(QRectF(_prevoutlinepoint.x() - _outlinesize,
_prevoutlinepoint.y() - _outlinesize, _dia, _dia));
rect.append(QRectF(point.x() - _outlinesize,
point.y() - _outlinesize, _dia, _dia));
updateScene(rect);
_prevoutlinepoint = point;
}
}