///////////////////////////////////////////////////////////////////////////////////////////////
// paint routine
void PixRasterBaseCtrl::Paint(Draw &d)
{
// clears background
d.DrawRect(GetSize(), SColorFace());
// if no associated PixRaster, does nothing
if(!pixRasterCtrl->GetPixBase())
return;
// paints image inside cache, if needed
PaintCache();
// paints image cache inside control
if(imageCache.GetWidth() >= GetSize().cx)
imageCache.Paint(d, Point(0, 0));
else
imageCache.Paint(d, Point((GetSize().cx - imageCache.GetWidth()) / 2, 0));
// paints markers inside control
PaintMarkers(d);
// if dragging, paints rubber banded polygon
if(selectedMarker && dragPolygon.GetCount())
{
d.DrawPolygon(dragPolygon, dragPolygon.GetCount(),
selectedMarker->GetFillColor(),
selectedMarker->GetBorderThickness(),
selectedMarker->GetBorderColor(),
PEN_DOT,
White);
}
} // END LeptonicaBaseCtrl::Paint()
virtual void Paint(Draw& w) {
w.DrawRect(GetSize(), White());
w.DrawRect(10, 10, 60, 80, Green());
w.DrawLine(100, 10, 160, 80, 0, Black());
w.DrawLine(160, 10, 100, 80, 4, Red());
w.DrawLine(160, 40, 100, 50, PEN_DOT, Red());
w.DrawEllipse(210, 20, 80, 60, Blue());
w.DrawEllipse(310, 20, 80, 60, LtBlue(), 5, Red());
w.DrawArc(RectC(410, 20, 80, 60), Point(10, 10), Point(450, 80), 3, Cyan);
Vector<Point> p;
p << Point(30, 110) << Point(60, 180) << Point(10, 150) << Point(70, 150);
w.DrawPolyline(p, 4, Black);
p.Clear();
p << Point(130, 110) << Point(160, 180) << Point(110, 150) << Point(170, 120)
<< Point(130, 110);
w.DrawPolygon(p, Blue);
p.Clear();
p << Point(230, 110) << Point(260, 180) << Point(210, 150) << Point(270, 120)
<< Point(230, 110);
w.DrawPolygon(p, Cyan, 5, Magenta);
p.Clear();
p << Point(330, 110) << Point(360, 180) << Point(310, 150) << Point(370, 120)
<< Point(330, 110);
w.DrawPolygon(p, Cyan, 5, Magenta, I64(0xaa55aa55aa55aa55));
w.DrawImage(40, 240, CtrlImg::save());
w.DrawImage(110, 210, 80, 80, CtrlImg::save());
w.DrawImage(240, 240, CtrlImg::save(), Blue);
w.DrawImage(310, 210, 80, 80, CtrlImg::save(), Blue);
w.DrawText(20, 330, "Hello world!");
w.DrawText(120, 330, "Hello world!", Arial(15).Bold());
w.DrawText(220, 330, "Hello world!", Roman(15).Italic(), Red);
w.DrawText(320, 380, 400, "Hello world!", Courier(15).Underline());
}
static void DrawPie(Draw& w, double c_x, double c_y, double r, int start, int alpha, int width = 0,
Color fill = Null, Color outline = Black, uint64 pattern = 0, Color background = White) {
const int dalpha = 1;
int n = alpha/dalpha;
Vector <Point> vP;
Point centre = Point(int(c_x), int(c_y));
vP << centre;
int ix;
int iy;
for (int i = 0; i <= n; i++) {
double x = c_x + r*cos((start+i*dalpha)*M_PI/1800);
ix = fround(x);
double y = c_y + r*sin((start+i*dalpha)*M_PI/1800);
iy = fround(y);
double dxy = (x-ix)*(x-ix) + (y-iy)*(y-iy);
if(dxy < 0.1 || i == 0 || i == n)
vP << Point(ix,iy);
if(w.IsGui())
w.DrawRect(ix, iy, 1, 1, Blend(fill, background, 150));
}
vP << centre;
w.DrawPolygon(vP, fill, width, outline, pattern, Null);
}
///////////////////////////////////////////////////////////////////////////////////////////////
// repaint polygon markers over the images
void PixRasterBaseCtrl::PaintMarkers(Draw &d)
{
// if no associated PixRaster object, do nothing
if(!pixRasterCtrl || !pixRasterCtrl->GetPixBase())
return;
// gets associated PixRaster object
PixBase *pixBase = pixRasterCtrl->GetPixBase();
// calculate view position inside the full tiff image
int left, top;
if(hScrollBar.IsVisible())
left = hScrollBar.Get();
else
left = 0;
if(vScrollBar.IsVisible())
top = vScrollBar.Get();
else
top = 0;
// loop for all pages, to see which of them fits the view
int currentTop = 0;
int currentPage = pixBase->GetActivePage();
for(int i = 0 ; i < pixBase->GetPageCount() ; i++)
{
// sets the active page
pixBase->SeekPage(i);
// translates current top of page in view coordinates
int viewCurrentTop = ScaleToView(currentTop);
// gets current page size and translates it in view coordinates
Rect viewPageRect(
-left,
-top + viewCurrentTop,
ScaleToView(pixBase->GetSize().cx) - left,
ScaleToView(pixBase->GetSize().cy) - top + viewCurrentTop
);
// this is when page view is smaller than ctrl view
int hGap;
int pw = viewPageRect.right - viewPageRect.left;
if(pw >= GetSize().cx)
hGap = 0;
else
hGap = (GetSize().cx - pw) / 2;
// checks wether the page fits the view..
viewPageRect.Intersect(GetView());
if(!viewPageRect.IsEmpty())
{
// this page is inside view, let's take its markers
Markers &markers = *pixBase->GetMarkers();
for(int iMarker = 0; iMarker < markers.GetCount(); iMarker++)
{
Marker &marker = markers[iMarker];
// don't paint marker being dragged... it will be done by
// drag routine itself
if(&marker == selectedMarker)
continue;
switch(marker.GetKind())
{
case Marker::EmptyMarker:
continue;
default:
Vector<Point> pts = marker.GetPoints();
Point points[pts.GetCount()];
for(int i = 0; i < pts.GetCount(); i++)
{
points[i].x = ScaleToView(pts[i].x) - left + hGap;
points[i].y = ScaleToView(pts[i].y) - top + viewCurrentTop;
}
if(&marker != highlightMarker)
d.DrawPolygon(points, pts.GetCount(),
marker.GetFillColor(),
marker.GetBorderThickness(),
marker.GetBorderColor(),
marker.GetBorderLineType(),
White);
else
d.DrawPolygon(points, pts.GetCount(),
marker.GetSelFillColor(),
marker.GetSelBorderThickness(),
marker.GetSelBorderColor(),
marker.GetSelBorderLineType(),
White);
break;
}
}
}
currentTop += pixBase->GetHeight() + ScaleToPage(10);
}
// restore PixRaster's active page
pixBase->SeekPage(currentPage);
} // END PixRasterBaseCtrl::PaintMarkers()