// when the mouse is moved
virtual void onMouseMove(MouseEvent &ev)
{
// dragging a point
if (hasCapture()) {
mPoints[mHotPoint] = viewToModel(ev.getPoint());
invalidate(true);
}
// change hot-tracking point
else {
int oldHotTracking = mHotPoint;
mHotPoint = -1;
// number of points
int n = mPoints.size();
// check points
for (int i=0; i<n; ++i) {
Size sz(16, 16);
Rect pointBounds = Rect(modelToView(mPoints[i]), sz).offset(-Point(sz/2));
if (pointBounds.contains(ev.getPoint())) {
mHotPoint = i;
break;
}
}
if (oldHotTracking != mHotPoint)
invalidate(true);
}
}
// when a mouse's button is pressed
virtual void onMouseDown(MouseEvent &ev)
{
if (mHotPoint >= 0) {
// drag the point with left button
if (ev.getButton() == MouseButton::Left)
captureMouse();
// ...or remove the point with the right one
else {
// remove point
remove_from_container(mPoints, mPoints[mHotPoint]);
// update hot-tracking point
mHotPoint = -1;
// redraw
invalidate(true);
}
}
else {
// add a new point
mPoints.push_back(viewToModel(ev.getPoint()));
// update hot-tracking point
onMouseMove(ev);
// redraw
invalidate(true);
}
}
void SplitBar::onMouseDown(MouseEvent& ev)
{
Widget::MouseDown(ev);
// capture the mouse only if the user clicks in the bar
if (getBarRect().contains(ev.getPoint())) {
m_oldPoint = ev.getPoint();
m_oldBarPos = m_barPos;
captureMouse();
if (!isFullDrag()) {
ScreenGraphics g;
drawTracker(g);
}
}
}
void SplitBar::onMouseMove(MouseEvent& ev)
{
Widget::MouseMove(ev);
if (hasCapture()) {
Rect rcClient(getClientBounds());
ScreenGraphics g;
if (!isFullDrag())
cleanTracker(g);
bool byPixels = (getStyle() & Styles::ByPixels) == Styles::ByPixels;
// Bar-position by pixels
if (byPixels) {
if (m_orientation == Orientation::Vertical) {
m_barPos = m_oldBarPos + (ev.getPoint().x - m_oldPoint.x);
m_barPos = clamp_value(m_barPos, 0.0, (double)rcClient.w-m_barSize);
}
else {
m_barPos = m_oldBarPos + (ev.getPoint().y - m_oldPoint.y);
m_barPos = clamp_value(m_barPos, 0.0, (double)rcClient.h-m_barSize);
}
}
// Bar-position by percentage
else {
if (m_orientation == Orientation::Vertical) {
m_barPos = m_oldBarPos + 100.0 * (ev.getPoint().x - m_oldPoint.x) / getBounds().w;
}
else {
m_barPos = m_oldBarPos + 100.0 * (ev.getPoint().y - m_oldPoint.y) / getBounds().h;
}
m_barPos = clamp_value(m_barPos, 0.0, 100.0);
}
if (!isFullDrag())
drawTracker(g);
else {
layout();
invalidate(true);
}
}
}
