///////////////////////////////////////////////////////////////////////////////////////////////
// left mouse button handlers
void PixRasterBaseCtrl::LeftDown(Point p, dword keyflags)
{
// translates mouse coordinate in page and page coordinates
int page;
Point pagePt;
if(!PointToPage(p, page, pagePt))
return;
// found a page on point, scan it to get the marker on it (if any)
// gets the PixRaster object
PixBase *pixBase = pixRasterCtrl->GetPixBase();
int minDist = ScaleToPage(5);
Markers *markers = pixBase->GetMarkersEx(page);
for(int i = 0; i < markers->GetCount(); i++)
{
Marker &marker = (*markers)[i];
int index;
Marker::HitKind hitKind = marker.Hit(pagePt, minDist, index);
if(hitKind == Marker::Miss)
continue;
// found a marker on cursor -- start drag op
dragPolygon = PointsToView(page, marker.DragOutline(pagePt, pagePt, minDist));
selectedMarker = ▮
dragPoint = pagePt;
dragPage = page;
}
} // END PixRasterBaseCtrl::LeftDown()
void PixRasterBaseCtrl::MouseMove(Point p, dword keyflags)
{
Point endDragPoint;
int endDragPage;
if(!pixRasterCtrl || !pixRasterCtrl->GetPixBase())
return;
// check what we're dragging....
if(keyflags & K_MOUSEMIDDLE)
{
// moves with middle button pressed -- panning image
// gets distance between current and pan point
int dx = panPoint.x - p.x + panHScroll;
int dy = panPoint.y - p.y + panVScroll;
// gets max scrolling values
int hMax = hScrollBar.GetTotal();
int vMax = vScrollBar.GetTotal();
// sets new pan position
if(dx < 0) dx = 0;
if(dx > hMax) dx = hMax;
if(dy < 0) dy = 0;
if(dy > vMax) dy = vMax;
hScrollBar.Set(dx);
vScrollBar.Set(dy);
Refresh();
}
else if((keyflags & K_MOUSELEFT) && selectedMarker)
{
// dragging a marker
int minDist = ScaleToPage(5);
PointToPage(p, endDragPage, endDragPoint);
if(endDragPage == dragPage)
dragPolygon = PointsToView(dragPage, selectedMarker->DragOutline(dragPoint, endDragPoint, minDist));
else
dragPolygon.Clear();
pixRasterCtrl->Refresh();
}
else
{
// nothing else, just highlight marker under cursor
// and set the appropriate cursor
int page;
Point pagePt;
int minDist = ScaleToPage(5);
Marker *newMarker = NULL;
if(PointToPage(p, page, pagePt))
{
PixBase *pixBase = pixRasterCtrl->GetPixBase();
Markers *markers = pixBase->GetMarkersEx(page);
for(int iMarker = 0; iMarker < markers->GetCount(); iMarker++)
{
Marker &marker = (*markers)[iMarker];
int index;
if(marker.Hit(pagePt, minDist, index) != Marker::Miss)
{
newMarker = ▮
break;
}
}
}
if(highlightMarker != newMarker)
{
highlightMarker = newMarker;
pixRasterCtrl->Refresh();
}
}
} // END PixRasterBaseCtrl::MouseMove()