void PaintBrush::mouseDown(const WMouseEvent& e)
{
Coordinates c = e.widget();
if (interactionCount_ % 2 == 0) {
path_ = WPainterPath(WPointF(c.x, c.y));
Vertex v;
v.id = interactionCount_;
v.x = c.x;
v.y = c.y;
vertexList_.push_back(v);
interactionCount_++;
path_.addRect(c.x, c.y, 1, 1);
update(PaintUpdate);
} else {
path_.lineTo(c.x, c.y);
Vertex v;
v.id = interactionCount_;
v.x = c.x;
v.y = c.y;
vertexList_.push_back(v);
Edge e;
e.v1 = v.id - 1;
e.v2 = v.id;
e.speed = currentSpeed_;
edgeList_.push_back(e);
interactionCount_++;
path_.addRect(c.x, c.y, 1, 1);
actions_.push_back(path_);
update(PaintUpdate);
}
}
void PaintBrush::paintEvent(WPaintDevice *paintDevice)
{
WPainter painter(paintDevice);
painter.setRenderHint(WPainter::Antialiasing);
WPen pen;
pen.setWidth(3);
pen.setColor(color_);
painter.setPen(pen);
if (interactionCount_ == 0 && !actions_.empty()) {
drawActions(painter);
interactionCount_ = vertexList_.size();
}
if (!undo_)
{
painter.drawPath(path_);
}
else
{
drawActions(painter);
undo_ = false;
update(PaintUpdate);
}
path_ = WPainterPath(path_.currentPosition());
}
void PaintBrush::loadImage(const Node& root)
{
update();
interactionCount_ = 0;
actions_.clear();
vertexList_.clear();
edgeList_.clear();
std::list< Node > children = root.children();
std::list< Node >::iterator it;
for (it = children.begin(); it != children.end(); ++it)
{
if (it->name() == "vertex") vertexList_.push_back(extractVertex(it->children()));
if (it->name() == "edge") edgeList_.push_back(extractEdge(it->children()));
}
// now iterate the edges and update the image.
std::list< Edge >::iterator eit;
for (eit = edgeList_.begin(); eit != edgeList_.end(); ++eit)
{
Vertex v1 = lookup(eit->v1);
path_ = WPainterPath(WPointF(v1.x, v1.y));
path_.addRect(v1.x, v1.y, 1, 1);
Vertex v2 = lookup(eit->v2);
path_.lineTo(v2.x, v2.y);
path_.addRect(v2.x, v2.y, 1, 1);
actions_.push_back(path_);
}
update(PaintUpdate);
}
void PaintBrush::paintEvent(WPaintDevice *paintDevice)
{
WPainter painter(paintDevice);
painter.setRenderHint(WPainter::Antialiasing);
WPen pen;
pen.setWidth(3);
pen.setColor(color_);
pen.setCapStyle(FlatCap);
pen.setJoinStyle(MiterJoin);
painter.setPen(pen);
painter.drawPath(path_);
path_ = WPainterPath(path_.currentPosition());
}
void PaintBrush::touchStart(const WTouchEvent& e)
{
Coordinates c = e.touches()[0].widget();
path_ = WPainterPath(WPointF(c.x, c.y));
}
void PaintBrush::mouseDown(const WMouseEvent& e)
{
Coordinates c = e.widget();
path_ = WPainterPath(WPointF(c.x, c.y));
}
