#include <CtrlLib/CtrlLib.h>
#include "Controls4U.h"

using namespace Upp;

#define TFILE <Controls4U/Controls4U.t>
#include <Core/t.h>

#define IMAGECLASS Controls4UImg
#define IMAGEFILE <Controls4U/Controls4U.iml>
#include <Draw/iml.h>

#define TOPICFILE <Controls4U/src.tpp/all.i>
#include <Core/topic_group.h>



void PaintCenterText(Painter &w, double x, double y, String text, Font fnt, Color color) {
	Size sz = GetTextSize(text, fnt);
	w.Text(x - sz.cx / 2., y - sz.cy / 2., text, fnt).Fill(color);
}

void PaintArc(Painter &w, double cx, double cy, double R, double ang0, double ang1, 
				int direction, double width, Color color) {
	if (direction == -1) {
		double c = ang0;
		ang0 = ang1;
		ang1 = c;
	}
	ang0 = ToRad(ang0);
	ang1 = ToRad(ang1);
	double delta = ToRad(0.5);
	if (ang0 > ang1)
		ang1 += 2*M_PI;
	
	double x1, y1;
	x1 = cx + R*cos(ang0 + delta);
	y1 = cy - R*sin(ang0 + delta);
	w.Move(x1, y1).Arc(cx, cy, R, R, -ang0, ang0-ang1).Stroke(width, color);
}
	
void EditFileFolder::Init() {
	WhenEnter = THISBACK1(DoGo, true);
	//EditString::AddFrame(butBrowseLeft);
	butBrowseLeft.SetImage(Controls4UImg::Folder());
	butBrowseLeft.Tip(t_("Browse"));
	butBrowseLeft <<= THISBACK(DoBrowse);
	EditString::AddFrame(butBrowseRight);
	butBrowseRight.SetImage(Controls4UImg::Folder());
	butBrowseRight <<= THISBACK(DoBrowse);
	butBrowseRight.Tip(t_("Browse"));
	butLeft.SetImage(CtrlImg::SmallLeft());
	butLeft <<= THISBACK(DoLeft);
	butRight.Tip(t_("Go to previous"));
	butLeft.Enable(false);
	butRight.SetImage(CtrlImg::SmallRight());
	butRight <<= THISBACK(DoRight);
	butRight.Tip(t_("Go to next"));
	butRight.Enable(false);
	butUp.SetImage(CtrlImg::DirUp());//SmallUp());
	butUp <<= THISBACK(DoUp);
	butUp.Tip(t_("Directory up"));
	butUp.Enable(false);
	//EditString::AddFrame(butGo);
	butGo.SetImage(CtrlImg::SmallRight()); 
	butGo <<= THISBACK1(DoGo, true); 
	isFile = isLoad = true;
	histInd = -1;
	pfs = 0;
}

void EditFileFolder::InitFs() {
	if (pfs)
		return;
	pfs = new FileSel_();
	pfs->Asking(!isLoad);
}

EditFileFolder::~EditFileFolder() {
	if (pfs)
		delete pfs;
}
	
EditFileFolder &EditFileFolder::UseHistory(bool use) {
	if (use) {
		if (EditString::FindFrame(butLeft) == -1) {
			EditString::InsertFrame(0, butRight);
			EditString::InsertFrame(0, butLeft);
		}
	} else {
		EditString::RemoveFrame(butLeft);
		EditString::RemoveFrame(butRight);
	}
	return *this;
}

EditFileFolder &EditFileFolder::UseUp(bool use) {
	if (use) {
		if (EditString::FindFrame(butUp) == -1) {
			int pos = EditString::FindFrame(butRight);
			EditString::InsertFrame(pos+1, butUp);
		}
	} else 
		EditString::RemoveFrame(butUp);
	return *this;
}

EditFileFolder &EditFileFolder::UseBrowse(bool use) {
	if (use) {
		if (EditString::FindFrame(butBrowseLeft) == -1) {
			int pos = EditString::FindFrame(butUp);
			if (pos == -1) 
				pos = EditString::FindFrame(butRight);
			EditString::InsertFrame(pos+1, butBrowseLeft);
		}
	} else 
		EditString::RemoveFrame(butBrowseLeft);	
	return *this;
}

EditFileFolder &EditFileFolder::UseBrowseRight(bool use) {
	if (use) {
		if (EditString::FindFrame(butBrowseRight) == -1) {
			int pos = EditString::FindFrame(butRight);
			EditString::InsertFrame(pos+1, butBrowseRight);
		}
	} else 
		EditString::RemoveFrame(butBrowseRight);	
	return *this;
}

EditFileFolder &EditFileFolder::UseGo(bool use) {
	if (use) {
		if (EditString::FindFrame(butGo) == -1) {
			int pos = EditString::FindFrame(butRight);
			EditString::InsertFrame(pos+1, butGo);
		}
	} else 
		EditString::RemoveFrame(butGo);
	return *this;
}

void EditFileFolder::DoBrowse() {
	InitFs();
	FileSel_ &fs = *pfs;
	
	String s = GetData();
	if (!s.IsEmpty()) {
		if (DirectoryExists(AppendFileName(fs.GetBaseDir(), s))) 
			fs.PreSelect(s);
		else {
			String folder = GetFileFolder(s);
			if (folder.IsEmpty() || folder.Find("..") >= 0 || 
				!DirectoryExists(AppendFileName(fs.GetBaseDir(), folder))) 
				s = AppendFileName(NormalizePath(folder, fs.GetActiveDir()), GetFileName(s));
			fs.PreSelect(s);
		}
	}
	if (isFile && isLoad) {
		if (fs.ExecuteOpen(title)) 
			SetData(~fs);
	} else if (isFile && !isLoad)  {
		if (fs.ExecuteSaveAs(title)) 
			SetData(~fs);
	} else if (!isFile) {
		fs.ClearFiles();
		if (fs.ExecuteSelectDir(title)) 
			SetData(~fs);
	}
}

void EditFileFolder::SetData(const Value& data) {
	EditString::SetData(data);
	DoGo();
}

void EditFileFolder::DoGo(bool add) {
	Set(GetData());			// Write Edit to FileSel
	if (!IsRootFolder(GetData().ToString()))
		butUp.Enable(true);
	else
		butUp.Enable(false);
	if (add) {
		histInd++;
		history.SetCount(histInd);
		history.Add(GetData());
		if (histInd > 0)
			butLeft.Enable(true);
		if (histInd >= history.GetCount()-1)
			butRight.Enable(false);
	}
	WhenChange();
	Accept();
}

void EditFileFolder::DoLeft() {
	histInd--;
	if (histInd < 0) {
		histInd = 0;
		return;
	} else if (histInd == 0)
		butLeft.Enable(false);
	butRight.Enable(true);
	EditString::SetData(history[histInd]);
	DoGo(false);
}

void EditFileFolder::DoRight() {
	histInd++;
	if (histInd >= history.GetCount()-1) 
		butRight.Enable(false);
	butLeft.Enable(true);
	EditString::SetData(history[histInd]);
	DoGo(false);
}

void EditFileFolder::DoUp() { 
	String folder = GetData();
	folder = GetUpperFolder(folder);
	SetData(folder);
}

EditFile::EditFile() {
	isFile = true;		
	title = t_("Select file");	
	EditFileFolder();
};

EditFolder::EditFolder() {
	isFile = false;	
	title = t_("Select directory");	
	EditFileFolder();
};

bool SetFirstChild(Ctrl *ctrl) {
	if (Ctrl *p = ctrl->GetParent()) {
		if (p->GetFirstChild() != ctrl) {
			p->RemoveChild(ctrl);
			p->AddChildBefore(ctrl, p->GetFirstChild());
		}
		return true;
	} else
		return false;
}

void ImagePopUp::Paint(Draw &w) {
	Size sz = GetSize();
	Size imagesize = image.GetSize();	
	
	switch (fit) {
	case StaticImage::BestFit: {
		Rect rect = FitInFrame(sz, imagesize);
		sz = rect.GetSize();
		w.DrawImage(sz, image);
		break; }
	case StaticImage::FillFrame:
		w.DrawImage(0, 0, sz.cx, sz.cy, image);
		break;
	case StaticImage::NoScale:
		w.DrawImage(0, 0, image);
		break;		
	case StaticImage::RepeatToFill:
		for (int left = 0; left < sz.cx; left += imagesize.cx) 
			for (int top = 0; top < sz.cy; top += imagesize.cy) 
				w.DrawImage(left, top, image);
		break;	
	}
	
	DrawBorder(w, sz, BlackBorder);
}

Point ImagePopUp::Offset(Point p) {
	return p + GetScreenView().TopLeft() - ctrl->GetScreenView().TopLeft();
}

void ImagePopUp::LeftDown(Point p, dword flags) {
	ctrl->LeftDown(Offset(p), flags);
}

void ImagePopUp::LeftDrag(Point p, dword flags) {
	Close();
	ctrl->LeftDrag(Offset(p), flags);
}

void ImagePopUp::LeftDouble(Point p, dword flags) {
	ctrl->LeftDouble(Offset(p), flags);
}

void ImagePopUp::RightDown(Point p, dword flags) {
	ctrl->RightDown(Offset(p), flags);
}

void ImagePopUp::LeftUp(Point p, dword flags) {
	ctrl->LeftUp(Offset(p), flags);
}

void ImagePopUp::MouseWheel(Point p, int zdelta, dword flags) {
	ctrl->MouseWheel(Offset(p), zdelta, flags);
}

void ImagePopUp::MouseLeave() {
	ctrl->MouseLeave();
	Close();
}

void ImagePopUp::MouseEnter(Point p, dword flags) {
	ctrl->MouseEnter(Offset(p), flags);
}

void ImagePopUp::MouseMove(Point p, dword flags) {
	ctrl->MouseMove(Offset(p), flags);
}

Image ImagePopUp::CursorImage(Point p, dword flags) {
	return ctrl->CursorImage(Offset(p), flags);
}

void ImagePopUp::LostFocus() {
	Close();
}

void ImagePopUp::PopUp(Ctrl *owner, int x, int y, int width, int height, Image &_image, int _angle, int _fit) {
	if (width == 0 || height == 0 || IsNull(_image)) 
		return;

	Size imagesize = _image.GetSize();	
	if (imagesize.cx == 0 || imagesize.cy == 0) 
		return;
	
	Rect r(x, y, x + width, y + height);
	if (fit == StaticImage::BestFit) {
		r = FitInFrame(r.GetSize(), imagesize);
		Size sz = r.GetSize();
		r.left = x;
		r.top = y;
		r.SetSize(sz);
	}
	Size ssz = GetScreenSize();
	if (ssz.cx < r.left + r.GetWidth()) {
		r.left = ssz.cx - r.GetWidth();
		r.right = ssz.cx;
	}
	if (ssz.cy < r.top + r.GetHeight()) {
		r.top = ssz.cy - r.GetHeight();
		r.bottom = ssz.cy;
	}
	if(r != GetRect())
		SetRect(r);
	
	ctrl = owner;
	image = ::GetRect(_image, _image.GetSize());
	angle = _angle;
	fit = _fit;
	Ctrl::PopUp(owner, true, false, GUI_DropShadows());
	SetAlpha(230);
}

void ImagePopUp::Close() {
	Ctrl::Close();
}

void StaticImage::MouseEnter(Point pos, dword keyflags) {
	if (isPopUp) { 
		Point pt = GetScreenRect().TopLeft();		
		popup.PopUp(this, pt.x, pt.y, szPopUp.cx, szPopUp.cy, origImage, angle, fit);
	}
}

void StaticImage::MouseLeave() {
	if (isPopUp) 
		popup.Close();
}

void StaticImage::Layout() {
   	if (useAsBackground) {
  		Ctrl *q = GetFirstChild(); 
		SetFirstChild((Ctrl *)this);
		SizePos();
	}
} 

StaticImage& StaticImage::SetPopUpSize(Size sz) {
	if (!IsNull(sz))
		szPopUp = sz;	
	else
		szPopUp = origImage.GetSize();
	return *this;
}

void StaticImage::Paint(Draw& w) {
	Size sz = GetSize();

	w.DrawRect(sz, background);
	if (!origImage) 
		return;
	if (sz.cx == 0 || sz.cy == 0) 
		return;
	Size imagesize = origImage.GetSize();	
	if (imagesize.cx == 0 || imagesize.cy == 0) 
		return;
	
	Image *imageView;
	if (angle == StaticImage::Angle_0)
		imageView = &origImage;
	else {
		imageView = &image;
		imagesize = imageView->GetSize();
	}
	switch (fit) {
	case StaticImage::BestFit:
		w.DrawImage(FitInFrame(sz, imagesize), *imageView);
		break;
	case StaticImage::FillFrame:
		w.DrawImage(0, 0, sz.cx, sz.cy, *imageView);
		break;
	case StaticImage::NoScale:
		w.DrawImage(0, 0, *imageView);
		break;		
	case StaticImage::RepeatToFill:
		for (int left = 0; left < sz.cx; left += imagesize.cx) 
			for (int top = 0; top < sz.cy; top += imagesize.cy) 
				w.DrawImage(left, top, *imageView);
		break;	
	}	
}

bool StaticImage::Set(String _fileName) {
	fileName = _fileName;
    origImage.Clear();	
	origImage = StreamRaster::LoadFileAny(_fileName);
	
	if (angle != Angle_0)
		SetAngle(angle);
	Refresh();
	return !IsNull(origImage);
}

bool StaticImage::Set(Image _image) {
	origImage.Clear();
	origImage = _image;
	if (angle != Angle_0)
		SetAngle(angle);
	fileName = "";
	Refresh();
	return !IsNull(origImage);
}

StaticImage& StaticImage::SetAngle(int _angle) {
	angle = _angle; 
	if (origImage) {
		switch (angle) {
		case Angle_90:	image = RotateClockwise(origImage);
						break;
		case Angle_180:	image = Rotate180(origImage);
						break;
		case Angle_270:	image = RotateAntiClockwise(origImage);
						break;
		}
		Refresh(); 
	}
	return *this;
}	
	
void  StaticImage::RightDown(Point pos, dword keyflags) {
	if(!IsEditable())
		return;

	WhenRightDown();
}

void  StaticImage::LeftDown(Point pos, dword keyflags) {
	if(!IsEditable())
		return;

	WhenLeftDown();
}

void  StaticImage::LeftDouble(Point pos, dword keyflags) {
	if(!IsEditable())
		return;

	WhenLeftDouble();
}


StaticImage::StaticImage() {
	Transparent();
	NoWantFocus();

	origImage = Null;
	background = Null;
	angle = Angle_0;
	fit = BestFit;
	useAsBackground = false;
	isPopUp = false;
	szPopUp = Size(300, 300);
}

void StaticImageSet::Paint(Draw& w) {
	Size sz = GetSize();

	w.DrawRect(sz, background);
	if (sz.cx == 0 || sz.cy == 0) 
		return;
	Size imagesize = images[id].GetSize();	
	if (imagesize.cx == 0 || imagesize.cy == 0) 
		return;
	
	w.DrawImage(FitInFrame(sz, imagesize), images[id]);
}

void  StaticImageSet::LeftDown(Point pos, dword keyflags)
{
	if(!IsEditable())
		return;
	SetWantFocus();
	
	Next();
	
	SetCapture();
	Refresh();	
}

void  StaticImageSet::LeftRepeat(Point pos, dword keyflags)
{
	if(!HasCapture())
		LeftDown(pos, keyflags);
}

void  StaticImageSet::LeftUp(Point pos, dword keyflags)
{
	if (!HasCapture())
		return;

	Refresh();
}

void  StaticImageSet::MouseMove(Point pos, dword keyflags)
{
	if(!HasCapture()) 
		return;
}
	
void StaticImageSet::GotFocus() 	{Refresh();}
void StaticImageSet::LostFocus() 	{Refresh();}

bool  StaticImageSet::Add(String fileName)
{
	return Add(StreamRaster::LoadFileAny(fileName));	
}

bool  StaticImageSet::Add(Image image)
{
	if (IsNull(image))
		return false;
	images.Add(image);
	return true;	
}

StaticImageSet::StaticImageSet() 
{
	Transparent();
//	NoWantFocus();

	background = Null;
	id = 0;
}

void StaticRectangle::Paint(Draw& w) {
	Size sz = GetSize();
	ImageBuffer ib(sz);
	BufferPainter sw(ib);	

	sw.Clear(RGBAZero());
	double wid;
	if (background)
		wid = width*2;	
	else
		wid = width;
	double sheight;
	if (isSquare) 
		sheight = sz.cx-wid;
	else
		sheight = sz.cy-wid;
		
	sw.Rectangle(wid/2, wid/2, sz.cx-wid, sheight).Stroke(wid, color).Fill(background);
	
	w.DrawImage(0, 0, ib);
}

void StaticRectangle::Layout() {
	if (isSquare) {
		Rect r = GetRect();
		SetRect(r.left, r.top, r.GetWidth(), r.GetWidth());
	}
}

StaticRectangle::StaticRectangle() {
	Transparent();
	NoWantFocus();

	color = Black();
	background = Null;
	width = 1;
	isSquare = false;
}

void StaticEllipse::Paint(Draw& w) {
	Size sz = GetSize();
	ImageBuffer ib(sz);
	BufferPainter sw(ib);	

	sw.Clear(RGBAZero());
	double wid;
	if (background)
		wid = width*2;	
	else
		wid = width;	
	sw.Ellipse(sz.cx/2, sz.cy/2, sz.cx/2-wid/2, sz.cy/2-wid/2).Stroke(wid, color).Fill(background);
	
	w.DrawImage(0, 0, ib);
}

StaticEllipse::StaticEllipse() {
	Transparent();
	NoWantFocus();

	color = Black();
	background = Null;
	width = 1;
}

StaticFrame::StaticFrame() {
	Transparent();
	NoWantFocus();
	
	SetFrame(InsetFrame());
}

void StaticFrame::Paint(Draw& w) {
	Size sz = GetSize();

	if (background)
		w.DrawRect(0, 0, sz.cx, sz.cy, background);
}

void StaticLine::FramePaint(Draw& w, const Rect& rr) {
	int off = int(0.25*max(rr.GetWidth(), rr.GetHeight()));
	
	ImageBuffer ib(rr.GetWidth()+2*off, rr.GetHeight()+2*off);
	BufferPainter sw(ib);	
	Rect r = rr;
	r.Offset(off, off);

	sw.Clear(RGBAZero());
	sw.LineCap(LINECAP_BUTT);
	
	if (orientation == OrVert)
		sw.DrawLine((r.right+r.left)/2, r.top, (r.right+r.left)/2, r.bottom, width, color);
	else if (orientation == OrHor)
		sw.DrawLine(r.left, (r.bottom+r.top)/2, r.right, (r.bottom+r.top)/2, width, color);
	else if (orientation == OrSW_NE)
		sw.DrawLine(r.left, r.bottom, r.right, r.top, width, color);
	else 
		sw.DrawLine(r.left, r.top, r.right, r.bottom, width, color);	
	
	w.DrawImage(-off, -off, ib);
}

StaticLine& StaticLine::SetOrientation(String o) {
	if (o == "|")
		return SetOrientation(OrVert);
	else if (o == "-")
		return SetOrientation(OrHor);
	else if (o == "\\")
		return SetOrientation(OrNW_SE);
	else
		return SetOrientation(OrSW_NE);
}

StaticLine::StaticLine() {
	SetFrame(*this);
	Transparent();
	NoWantFocus();

	color = Black();
	width = 1;
	orientation = OrVert;
}

void PaintArrowEnd(Painter &sw, double x0, double y0, double x1, double y1, int width, Color &color, bool direction) {
	double alen, awidth;
	double wd = width;
	
	if (width == 1) {
		alen = 16;
		awidth = 2;
	} else {				
		alen = 9*wd;
		awidth = 1.5*wd;
	}
	if (!direction)
		alen = -alen;
	if (x0 == x1) {
		sw.Move(x0, y0).Line(x0 + awidth, y0 + alen).Line(x0 - awidth, y0 + alen).Line(x0, y0);
		sw.Fill(color);
	} else if (y0 == y1) {
		sw.Move(x0, y0).Line(x0 + alen, y0 - awidth).Line(x0 + alen, y0 + awidth).Line(x0, y0);
		sw.Fill(color);
	} else {
		double t = atan((y1-y0)/(double)(x1-x0));
		double xa = alen*cos(t);
		double ya = alen*sin(t);
		double xb = awidth*sin(t);
		double yb = awidth*cos(t);
		sw.Move(x0, y0).Line(x0+xa+xb, y0+ya-yb).Line(x0+xa-xb, y0+ya+yb).Line(x0, y0);
		sw.Fill(color);
	}
}

void StaticArrow::FramePaint(Draw& w, const Rect& rr) {
	int off = int(0.25*max(rr.GetWidth(), rr.GetHeight()));
	
	ImageBuffer ib(rr.GetWidth()+2*off, rr.GetHeight()+2*off);
	BufferPainter sw(ib);	
	Rect r = rr;
	r.Offset(off, off);
		
	Size sz = rr.GetSize();
	
	sw.Clear(RGBAZero());
	sw.LineCap(LINECAP_BUTT);
	
	double x0, y0, x1, y1, middle;

	if (orientation == OrVert) {
		x0 = x1 = (r.right+r.left)/2;
		y0 = r.top;
		y1 = r.bottom;
	} else if (orientation == OrHor) {
		x0 = r.left;
		y0 = y1 = (r.bottom+r.top)/2;
		x1 = r.right;
	} else if (orientation == OrSW_NE) {
		x0 = r.left;
		y0 = r.bottom;
		x1 = r.right;
		y1 = r.top;
	} else if (orientation == OrNW_SE_HVH) {
		x0 = r.left;
		y0 = r.top + 2*width;
		x1 = r.right;
		y1 = r.bottom - 2*width;
		middle = (r.left+r.right)/2;
	} else if (orientation == OrSW_NE_HVH) {
		x0 = r.left;
		y0 = r.bottom - 2*width;
		x1 = r.right;
		y1 = r.top + 2*width;
		middle = (r.left + r.right)/2;
	} else if (orientation == OrNW_SE_VHV) {
		x0 = r.left + 2*width;
		y0 = r.top;
		x1 = r.right - 2*width;
		y1 = r.bottom;
		middle = (r.top + r.bottom)/2;
	} else if (orientation == OrSW_NE_VHV) {
		x1 = r.left  + 2*width;
		y1 = r.bottom;
		x0 = r.right - 2*width;
		y0 = r.top;
		middle = (r.top + r.bottom)/2;
	} else {	// OrNW_SE
		x0 = r.left;
		y0 = r.top;
		x1 = r.right;
		y1 = r.bottom;
	}
	// Arrow len is 9*width, but 8 joins better arrow end with line
	if (ends == EndLeft || ends == EndLeftRight) {
		if (x0 == x1 || orientation == OrVert || orientation == OrNW_SE_VHV || orientation == OrSW_NE_VHV) {
			PaintArrowEnd(sw, x0, y0, x0, y1, width, color, true);
			y0 += 8*width;
		} else if (y0 == y1 || orientation == OrHor || orientation == OrNW_SE_HVH || orientation == OrSW_NE_HVH) {
			PaintArrowEnd(sw, x0, y0, x1, y0, width, color, true);
			x0 += 8*width;
		} else { 
			PaintArrowEnd(sw, x0, y0, x1, y1, width, color, true);
			double t = atan((y1-y0)/(double)(x1-x0));
			x0 += 8*width*cos(t);
			y0 += 8*width*sin(t);
		}
	}
	if (ends == EndRight || ends == EndLeftRight) {	// Same as other but swapping points
		if (x0 == x1 || orientation == OrVert || orientation == OrNW_SE_VHV || orientation == OrSW_NE_VHV) {
			PaintArrowEnd(sw, x1, y1, x1, y0, width, color, false);
			y1 -= 8*width;
		} else if (y0 == y1 || orientation == OrHor || orientation == OrNW_SE_HVH || orientation == OrSW_NE_HVH) {
			PaintArrowEnd(sw, x1, y1, x0, y1, width, color, false);
			x1 -= 8*width;
		} else { 
			PaintArrowEnd(sw, x1, y1, x0, y0, width, color, false);
			double t = atan((y1-y0)/(double)(x1-x0));
			x1 -= 8*width*cos(t);
			y1 -= 8*width*sin(t);			
		}
	}	
	if (orientation == OrVert) 
		sw.Move(x0, y0).Line(x1, y1).Stroke(width, color);
	else if (orientation == OrHor) 
		sw.Move(x0, y0).Line(x1, y1).Stroke(width, color);
	else if (orientation == OrSW_NE) 
		sw.Move(x0, y0).Line(x1, y1).Stroke(width, color);
	else if (orientation == OrNW_SE_HVH) {
		middle = (r.left+r.right)/2;
		sw.Move(x0, 	y0).Line(middle, y0).Stroke(width, color);
		sw.Move(middle, y0).Line(middle, y1).Stroke(width, color);
		sw.Move(middle, y1).Line(x1,     y1).Stroke(width, color);
	} else if (orientation == OrSW_NE_HVH) {
		middle = (r.left + r.right)/2;
		sw.Move(x0,     y0).Line(middle, y0).Stroke(width, color);
		sw.Move(middle, y0).Line(middle, y1).Stroke(width, color);
		sw.Move(middle, y1).Line(x1,     y1).Stroke(width, color);
	} else if (orientation == OrNW_SE_VHV) {
		middle = (r.top + r.bottom)/2;
		sw.Move(x0,     y0).Line(x0, middle).Stroke(width, color);
		sw.Move(x0, middle).Line(x1, middle).Stroke(width, color);
		sw.Move(x1, middle).Line(x1,     y1).Stroke(width, color);
	} else if (orientation == OrSW_NE_VHV) {
		middle = (r.top + r.bottom)/2;
		sw.Move(x0,     y0).Line(x0, middle).Stroke(width, color);
		sw.Move(x0, middle).Line(x1, middle).Stroke(width, color);
		sw.Move(x1, middle).Line(x1,     y1).Stroke(width, color);
	} else 
		sw.Move(x0, y0).Line(x1, y1).Stroke(width, color);				
	
	w.DrawImage(-off, -off, ib);
}

StaticArrow& StaticArrow::SetOrientation(String o) {
	if (o == "|")
		return SetOrientation(OrVert);
	else if (o == "-")
		return SetOrientation(OrHor);
	else if (o == "\\")
		return SetOrientation(OrNW_SE);
	else if (o == "/")
		return SetOrientation(OrSW_NE);
	else if (o == "┐_") 
		return SetOrientation(OrNW_SE_HVH);
	else if (o == "_┌") 
		return SetOrientation(OrSW_NE_HVH);
	else if (o == "└┐") 
		return SetOrientation(OrNW_SE_VHV);
	else //if (o == "┌┘") {
		return SetOrientation(OrSW_NE_VHV);
}

StaticArrow& StaticArrow::SetEnds(String e) {
	if (e == "<-")
		return SetEnds(EndLeft);
	else if (e == "->")
		return SetEnds(EndRight);
	else if (e == "<->")
		return SetEnds(EndLeftRight);
	else
		return SetEnds(NoEnd);	
}
	
StaticArrow::StaticArrow() {
	SetFrame(*this);	
	Transparent();
	NoWantFocus();

	color = Black();
	width = 1;
	orientation = OrVert;
	ends = EndLeft;
}

void StaticClock::PaintPtr(BufferPainter &w, double cmx, double cmy, double pos, double m, double d, Color color, double cf) {
	double dx = m * sin(pos * 2 * M_PI);
	double dy = m * cos(pos * 2 * M_PI);

	double sx = cmx - dx * 35 / 2.0;
	double sy = cmy + dy * 35 / 2.0;
	double ex = cmx + dx * cf;
	double ey = cmy - dy * cf;

	w.Move(sx, sy).Line(ex, ey).Stroke(d, color);
}

void StaticClock::Paint(Draw& ww) {
	Size sz = GetSize();
	ImageBuffer ib(sz);
	BufferPainter w(ib);	

	w.Clear(RGBAZero());
	w.LineCap(LINECAP_BUTT);
		
	Rect r = GetRect();
	Rect ro = GetRect();
	
	Color letterColor, background;;
	if (colorType == WhiteType) {
		background = White();
		letterColor = Black();
	} else {
		background = Black();
		letterColor = White();
	}	
	double hs = 20;
	int width = min(r.right - r.left, r.bottom - r.top);
	double bigF = width/200.;
	if (image)
		w.DrawImage(0, 0, width, width, image);
	else
		w.Circle(width/2, width/2, width/2).Fill(background);
	
	double cmx = width / 2;
	double cmy = width / 2;
	double cf = min(cmy, cmx) - 2;
	
	if (hourType != StaticClock::No) {
		for(int i = 1; i <= 60; i++) {
			double x = cmx + (0.95 * sin(i * M_PI / 30.0) * cf);
			double y = cmy - (0.95 * cos(i * M_PI / 30.0) * cf);
			if (hourType == StaticClock::Square) {
				if(i % 5 == 0)
					w.Rectangle(x, y, 3*bigF, 3*bigF).Fill(letterColor);
				else
					w.Rectangle(x, y, 2*bigF, 2*bigF).Fill(letterColor);
			} else if (hourType == StaticClock::Rectangle) {
				if(i % 5 == 0) {
					double x2 = cmx + (0.7 * sin(i * M_PI / 30.0) * cf);
					double y2 = cmy - (0.7 * cos(i * M_PI / 30.0) * cf);
					w.Move(x, y).Line(x2, y2).Stroke(4*bigF, Gray());
					w.Move(x, y).Line(x2, y2).Stroke(2*bigF, letterColor);
				} else {
					double x2 = cmx + (0.8 * sin(i * M_PI / 30.0) * cf);
					double y2 = cmy - (0.8 * cos(i * M_PI / 30.0) * cf);
					w.Move(x, y).Line(x2, y2).Stroke(1*bigF, Gray());
				}
			}
		}
	}
	if (numberType != StaticClock::NoNumber) {
		double numberPos;
		if (hourType == StaticClock::No) 
			numberPos = 1;
		else if (hourType == StaticClock::Square) 
			numberPos = 0.96;
		else if (hourType == StaticClock::Rectangle) 
			numberPos = 0.75;
		double numberd;
		Font fnt, fnt4;
		if (numberType == StaticClock::Small)  {
			numberd = numberPos - 0.2;	
			fnt4 = Arial((int)(14*bigF));
			fnt = Arial((int)(14*bigF));
		} else if (numberType == StaticClock::Big)  {
			numberd = numberPos - 0.2;
			fnt4 = Arial((int)(20*bigF));
			fnt = Arial((int)(20*bigF));
		} else if (numberType == StaticClock::BigSmall)  {
			numberd = numberPos - 0.2;
			fnt4 = Arial((int)(20*bigF));
			fnt = Arial((int)(14*bigF));
		} else if (numberType == StaticClock::Big4)  {
			numberd = numberPos - 0.2;
			fnt4 = Arial((int)(20*bigF));
		}
		for(int i = 1; i <= 12; i++) {
			double x = cmx + (numberd * sin(i * M_PI / 6.0) * cf);
			double y = cmy - (numberd * cos(i * M_PI / 6.0) * cf);
			if (i % 3 == 0)
				PaintCenterText(w, x, y, FormatInt(i), fnt4, letterColor);
			else if (numberType != StaticClock::Big4)
				PaintCenterText(w, x, y, FormatInt(i), fnt, letterColor);
		}
	}
	double handleF = bigF;
	double tm = t.hour * 3600 + t.minute * 60 + t.second;
	PaintPtr(w, cmx, cmy, tm / 3600 / 12, 0.5, 4*handleF, Color(200, 200, 200), cf);
	PaintPtr(w, cmx, cmy, tm / 3600 / 12, 0.5, 3*handleF, letterColor, cf);
	PaintPtr(w, cmx, cmy, tm / 3600, 0.6, 3*handleF, Color(200, 200, 200), cf);
	PaintPtr(w, cmx, cmy, tm / 3600, 0.6, 2*handleF, letterColor, cf);
	if (seconds)
		PaintPtr(w, cmx, cmy, tm / 60, 0.75, 1*handleF, Color(200, 200, 200), cf);
	
	int wm = width;
	if (colorType == WhiteType) {
		w.Begin();
			w.BeginMask();
				w.Move(0, 0).Line(wm, 0)
				  .Line(wm, wm).Line(0, wm)
				  .Fill(wm/4, wm/4, Black(), 2*wm, Color(220, 220, 220));
			w.End();
			w.Circle(wm/2, wm/2, wm/2).Fill(Black());
		w.End();
	} else {
		w.Begin();
			w.BeginMask();
				w.Ellipse(wm/2, wm/4, wm/3, wm/4).Fill(Color(60, 60, 60));
			w.End();
			w.Ellipse(wm/2, wm/4, wm/3, wm/4).Fill(White());
		w.End();		
	}
	ww.DrawImage(0, 0, ib);
}

StaticClock& StaticClock::SetImage(String _fileName) {
	image = StreamRaster::LoadFileAny(_fileName);
	Refresh();
	return *this;
}

void StaticClock::SetData(const Value& v) {
	SetTime((Time) v);
}

void StaticClock::SetTime(const Time& tm) {
	if (!IsNull(tm) && tm.IsValid()) {
		t = tm;
		Refresh();
	}
}

void StaticClock::SetTime(int h, int n, int s) {
	t.hour = h;
	t.minute = n;
	t.second = s;
	Refresh();
}

struct StaticClocks;
void StaticClockThread(StaticClocks *gui);

struct StaticClocks {
	Array <StaticClock *> clocks;
	volatile Atomic running, kill;
	
	friend void StaticClockThread(StaticClocks *gui);
	
	StaticClocks() {
		running = kill = 0;
	}
	~StaticClocks() {
		AtomicInc(kill);	
		while (running)
			Sleep(10);
	}
	void Add(StaticClock *clock) {
		clocks.Add(clock);
#ifdef _MULTITHREADED
		if (!running) {
			AtomicInc(running);
			Thread().Run(callback1(StaticClockThread, this));
		}
#endif
	}
	void Remove(StaticClock *clock) {
		for (int i = 0; i < clocks.GetCount(); ++i) {
			if (clocks[i] == clock) {
				clocks.Remove(i);
				break;
			}
		}
		if (clocks.GetCount() == 0 && running) {	
			AtomicInc(kill);	
			while (running)
				Sleep(10);
			AtomicDec(kill);	
		}
	}
	void SetTimeRefresh(int i) {
		clocks[i]->SetTimeRefresh();
	}
	int GetCount() {return clocks.GetCount();}
};

StaticClocks clocks;

void StaticClockThread(StaticClocks *gui) {
	while (true) {
		if (gui->kill) {
			AtomicDec(gui->running);
			return;		
		}
		for (int i = 0; i < gui->GetCount(); ++i) 
			PostCallback(callback(gui->clocks[i], &StaticClock::SetTimeRefresh));
		Sleep(200);
	}
}

StaticClock& StaticClock::SetAuto(bool mode) {
	autoMode = mode;
	if (!mode) 
		clocks.Remove(this);
	else 
		clocks.Add(this);
	return *this;
}

StaticClock::StaticClock() {
	Transparent();
	NoWantFocus();

	hourType = StaticClock::Square;
	numberType = StaticClock::Small;
	image = Null;
	colorType = WhiteType;
	seconds = true;
	
	t = GetSysTime();
	autoMode = false;
}

StaticClock::~StaticClock() {
}

void Meter::PaintMarks(BufferPainter &w, double cx, double cy, double R, double ang0, 
			double ang1, int direction, double step, double bigF, Color color) {
	if (direction == -1) 
		Swap(ang0, ang1);
	ang0 = ToRad(ang0);
	ang1 = ToRad(ang1);
	step = ToRad(step);
	if (ang0 > ang1)
		ang1 += 2*M_PI;
	double width = 6*bigF;
	for (double i = ang0; i <= ang1+0.1; i += step) {
		double x0 = cx + R*cos(i);
		double y0 = cy - R*sin(i);
		double x1 = cx + 0.93*R*cos(i);
		double y1 = cy - 0.93*R*sin(i);
		w.Move(x0, y0).Line(x1, y1).Stroke(width, color);
	}
}

void Meter::PaintNumbers(BufferPainter &w, double cx, double cy, double R, double a0, 
	double step, int direction, double minv, double maxv, double stepv, double bigF, Color color)
{
	a0 = ToRad(a0);
	step = ToRad(step);
	Font fnt = Arial((int)(13*bigF));
	while (minv <= maxv) {
		double x = cx + 0.8*R*cos(a0);
		double y = cy - 0.8*R*sin(a0);
		PaintCenterText(w, x, y, FormatDouble(minv), fnt, color);
		a0 += step*direction;
		minv += stepv;
	}
}

void Meter::PaintHand(BufferPainter &w, double cx, double cy, double R, double val, 
					  double bigF, int colorType)
{
	Color letterColor;
	if (colorType == WhiteType) {
		letterColor = Black();
	} else {
		letterColor = White();
	}
	val = ToRad(val);
	double x0 = cx + 0.90*R*cos(val);
	double y0 = cy - 0.90*R*sin(val);
	double x1 = cx;
	double y1 = cy;
	w.Move(x0, y0).Line(x1, y1).Stroke(5*bigF, LtGray());
	double x2 = cx + 0.4*R*cos(val);
	double y2 = cy - 0.4*R*sin(val);
	w.Move(x0, y0).Line(x2, y2).Stroke(4*bigF, letterColor);
	double x3 = cx - 0.3*R*cos(val);
	double y3 = cy + 0.3*R*sin(val);
	w.Move(x1, y1).Line(x3, y3).Stroke(5*bigF, letterColor);
	
	w.Circle(cx, cy, bigF*18).Fill(LtGray());
	w.Circle(cx, cy, bigF*15).Fill(Black());
}

void Meter::Paint(Draw& ww) {
	Size sz = GetSize();
	ImageBuffer ib(sz);
	BufferPainter w(ib);	

	w.Clear(RGBAZero());
	w.LineCap(LINECAP_BUTT);
	
	Rect r(0, 0, sz.cx, sz.cy);

	Color backColor, letterColor;
	if (colorType == WhiteType) {
		backColor = White();
		letterColor = Black();
	} else {
		backColor = Black();
		letterColor = White();
	}
	w.DrawRect(r, backColor);
	int width = r.right - r.left;
	int height = r.bottom - r.top;
	double bigF = width/200.;
	double bigH = height/100.;
	
	int direction;
	if (clockWise)
		direction = -1;
	else
		direction = 1;
	double a = angleBegin;
	double b = angleEnd;
	double cosa = cos(ToRad(a));
	double cosb = cos(ToRad(b));
	double sina = sin(ToRad(a));
	double sinb = sin(ToRad(b));
	double minx = cosa;
	double maxx = cosa;
	double miny = sina;
	double maxy = sina;
	double angminx = a;
	double angminy = a;
	if (cosb < minx) {
		minx = cosb;
		angminx = b;
	}
	if (cosb > maxx) 
		maxx = cosb;
	if (sinb > miny) {
		miny = sinb;
		angminy = b;
	}
	if (sinb < maxy)
		maxy = sinb;
	int maxgrad = 0;
	double angmaxx = 0;
	for (double ang = a; ang != b; ang = AngleAdd360(ang, double(direction))) {
		maxgrad++;
		if (ang == 180) {
			minx = -1;
			angminx = 180;
		} else if (ang == 0) {
			maxx = 1;
			angmaxx = 0; 
		} else if (ang == 90) {
			miny = 1;
			angminy = 90;
		} else if (ang == 270)
			maxy = -1;
	}
	double rate = width/(maxx - minx);
	double cx = -minx*rate;
	double R = 0.92*fabs(rate*minx/cos(ToRad(angminx)));
	double cy;
	if (fabs(miny) >= fabs(maxy))
		cy = 1.08*R*miny;
	else
		cy = r.bottom + 1.08*R*maxy;
	
	PaintArc(w, cx, cy, R, a, b, direction, fceil(0.8*bigF), letterColor);
	
	if (peak < max && peak > min) {
		double valpk = peak*maxgrad/(max-min);
		for (double i = 0.93; i < 0.98; i+= 0.004)
			PaintArc(w, cx, cy, i*R, a + valpk*direction, b, direction, (int)(2*bigF), LtRed());
		double fsize = 7*Upp::min(bigF, bigH);
		Font fnt = Arial((int)fsize);
		double txtx = cx + R*cos(ToRad(b))/2;
		double txty = cy - R*sin(ToRad(b))/2;
		PaintCenterText(w, txtx, txty, "  PEAK", fnt, Gray());
		Image light;
		if (value < peak)
			light = Controls4UImg::LightOff();
		else
			light = Controls4UImg::LightOn();
		w.DrawImage((int)(txtx - fsize*2/3.), (int)(txty + fsize), (int)(1.8*fsize), (int)(1.8*fsize), light);	
	}
	double stepa = step*maxgrad/(max-min);	
	PaintMarks(w, cx, cy, R, a, b, direction, stepa, bigF, letterColor);
	if (number)
		PaintNumbers(w, cx, cy, R, a, stepa, direction, min, max, step, bigF, letterColor);
		             
	Font fnt = Arial((int)(20*Upp::min(bigF, bigH)));
	double angtxt = ToRad(a + maxgrad*direction/2);
	double txtx = cx + R*cos(angtxt)/2;
	double txty = cy - R*sin(angtxt)/2;
	PaintCenterText(w, txtx, txty, text, fnt, letterColor);
	
	double vala = (value-min)*maxgrad/(max-min);
	PaintHand(w, cx, cy, R, a + vala*direction, bigF, colorType);	

	int wm = width;
	if (colorType == WhiteType) {
		w.Begin();
			w.BeginMask();
				w.Rectangle(0, 0, wm, wm)
				  .Fill(wm/4, wm/4, Black(), wm, Color(100, 100, 100));
			w.End();
			w.Rectangle(0, 0, wm, wm).Fill(Black());
		w.End();
	} else {
		w.Begin();
			w.BeginMask();
				w.Rectangle(0, 0, wm, height).Fill(Color(70, 70, 70));
			w.End();
			w.Rectangle(0, 0, wm, height/2).Fill(White());
		w.End();		
	}
	ww.DrawImage(0, 0, ib);
}

#ifdef _MULTITHREADED
void MeterThread(Meter *gui, double newValue) {
	double delta = Sign(newValue-gui->value)*(gui->max - gui->min)/gui->sensibility;
	long deltaT = labs(long(1000.*delta*gui->speed/(gui->max - gui->min)));
	int maxi = (int)(fabs((newValue-gui->value)/delta));
	
	long t0 = GetTickCount();
	for (int i = 0; i < maxi; ++i, gui->value += delta) {
		if (gui->kill) {
			AtomicDec(gui->running);
			return;		
		}
		PostCallback(callback(gui, &Meter::RefreshValue));
		Sleep(deltaT);
	}
	gui->value = newValue;
	PostCallback(callback(gui, &Meter::RefreshValue));
	AtomicDec(gui->running);
}
#endif

void Meter::SetData(const Value& v)	{
	double val = minmax(double(v), min, max) ;
#ifdef _MULTITHREADED
	if (running) {	// Stop movement before changing value
		AtomicInc(kill);	
		while (running)
			Sleep(10);
		AtomicDec(kill);	
	}
	AtomicInc(running);
	Thread().Run(callback2(MeterThread, this, val));
#else
	value = val;
	RefreshValue();
#endif
}

Meter::~Meter() {
	AtomicInc(kill);
	while (running)
		Sleep(10);
}

Meter::Meter() {
	Transparent();
	NoWantFocus();

	min = value = 0;
	max = 100;
	peak = 80;
	step = 20;	
	angleBegin = 120;
	angleEnd = 40;
	clockWise = true;
	number = true;
	colorType = WhiteType;
	sensibility = 30;
	speed = 1;
	running = 0;
	kill = 0;
}

Knob::Knob() : value(0), minv(0), maxv(100), minorstep(10), majorstep(20), keyStep(1), 
			   angleBegin(225), angleEnd(315), 
			   colorType(SimpleWhiteType), clockWise(true), number(true), mark(Line), 
			   interlocking (false), style(Simple)  {
	Transparent();
}

void Knob::PaintMarks(BufferPainter &w, double cx, double cy, double R, double begin, double end, 
		double ang0, double ang1, int direction, double minorstep, double bigF, Color color) {
	if (direction == -1) 
		Swap(ang0, ang1);
	ang0 = ToRad(ang0);
	minorstep = ToRad(minorstep);
	double width = bigF;
	int inum = 0;
	int imin = nminor;
	for (double iang = ang0; inum < nmajor+2; iang += minorstep) {
		if (imin >= nminor) {
			imin = 0;
			double x0 = cx + end*R*cos(iang);
			double y0 = cy - end*R*sin(iang);
			double x1 = cx + begin*R*cos(iang);
			double y1 = cy - begin*R*sin(iang);
			w.Move(x0, y0).Line(x1, y1).Stroke(width, color);
			inum++;
		} else {
			double x0 = cx + (begin+end)*R*cos(iang)/2;
			double y0 = cy - (begin+end)*R*sin(iang)/2;
			w.Circle(x0, y0, 0.2*(begin-end)*R).Fill(color);
			imin++;
		}
	}
}

void Knob::PaintNumbers(BufferPainter &w, double cx, double cy, double R, double a0, 
	double step, int direction, double minv, double maxv, double stepv, double bigF, Color color) {
	double range = maxv - minv;
	a0 = ToRad(a0);
	step = ToRad(step);
	Font fnt = Arial(3+(int)(4*bigF));
	String strminv;
	String strmaxv = FormatDoubleAdjust(maxv, range);
	while (strminv != strmaxv) {
		double x = cx + 0.8*R*cos(a0);
		double y = cy - 0.8*R*sin(a0);
		strminv = FormatDoubleAdjust(minv, range);
		PaintCenterText(w, x, y, strminv, fnt, color);
		a0 += step*direction;
		minv += stepv;
	}
}

void Knob::PaintRugged(BufferPainter &sw, double cx, double cy, double angle, double r, double rugg, int numRug, Color &color) {
	double deltaAngle = 360./numRug;
	
	double iang = angle;
	for (int i = 0; i <= numRug; iang += deltaAngle, i++) {
		if (deltaAngle > 360)
			deltaAngle -= 360;
		
		PaintArc(sw, cx, cy, r-rugg/2-1, iang, iang+0.6*deltaAngle, 1, rugg, color);
		PaintArc(sw, cx, cy, r, 		 iang, iang+0.6*deltaAngle, 1, 1,    Gray());
		double riang = ToRad(iang);
		sw.Move(cx+r*cos(riang), cx-r*sin(riang)).Line(cx+(r-rugg)*cos(riang), cx-(r-rugg)*sin(riang)).Stroke(1, Gray());
	}
}

void Knob::Layout() {
	double R = min(GetSize().cx/2., GetSize().cy/2.);
	double dx = R;
	double maxgrad = fabs(angleEnd - angleBegin);
	if (clockWise)
		maxgrad = 360 - maxgrad;
	double dangle = (value - minv)*maxgrad/(maxv - minv);
	if (clockWise)
		dangle = angleBegin - dangle;
	else
		dangle = angleBegin + dangle;
	double angle = ToRad(dangle);
	ImageBuffer ib(int(2*R), int(2*R));
	BufferPainter sw(ib);	
	sw.Clear(RGBAZero());
	int direction;
	if (clockWise)
		direction = -1;
	else
		direction = 1;
	
	if (majorstep == 0)
		majorstep = maxv - minv;
	majorstep = (maxv-minv)/int((maxv-minv)/majorstep);
		
	if (minorstep > majorstep || minorstep == 0)
		minorstep = majorstep;
		
	if (minorstep == 0) {
		nminor = 0;
	} else {
		nminor = int(majorstep/minorstep) - 1;
		minorstep = majorstep/int(majorstep/minorstep);
	}
	//minorstep = (maxv-minv)/((nmajor+1)*(nminor+1));
	//majorstep = (maxv-minv)/(nmajor+1);
	nmajor = int((maxv-minv)/majorstep) - 1;
	
	double minorstepa = minorstep*maxgrad/(maxv - minv);	// Step in angle
	double majorstepa = majorstep*maxgrad/(maxv - minv);
	if (number) {
		PaintNumbers(sw, R, R, R, angleBegin, majorstepa, direction, minv, maxv, majorstep, R/40., Black());
		PaintMarks(sw, R, R, R, 0.65, 0.73, angleBegin, angleEnd, direction, minorstepa, R/40., Black());
		R *= 0.65;
	} else {
		PaintMarks(sw, R, R, R, 0.9, 1, angleBegin, angleEnd, direction, minorstepa, R/40., Black());
		R *= 0.9;
	}
	dx = dx - R;
	
	double rugg = 0;
	if (style == Rugged) 
		rugg = 0.5+0.054*R;

	double r = 0.15*R;
	R = R-rugg;
	
	if (colorType == WhiteType || colorType == BlackType) {
		Color fill = (colorType == SimpleWhiteType || colorType == WhiteType) ? White() : Color(20, 20, 20);
		{
			if (colorType == WhiteType) {
				sw.Circle(dx+rugg+R, dx+rugg+R, R).Fill(dx+R/2, dx+R/2, White(), dx+R, dx+R, R, LtGray());
			} else if (colorType == BlackType) {
				Color lineColor = (colorType == WhiteType) ? Black() : White();
				Color almostColor = (colorType == WhiteType) ? Color(220, 220, 220) : Color(60, 60, 60);
				sw.Circle(dx+rugg+R, dx+rugg+R, R).Fill(fill);	
				sw.Begin();
					sw.BeginMask();
						sw.Circle(dx+rugg+R, dx+rugg+R, R).Fill(White());
					sw.End();
					sw.Ellipse(dx+rugg+R, dx+rugg+0.5*R, 0.89*R, 0.5*R).Fill(dx, dx, White(), dx, dx+0.9*R, Color(20, 20, 20));
					sw.Ellipse(dx+rugg+R, dx+rugg+1.7*R, 0.8*R, 0.5*R).Fill(dx, dx+2*R, White(), dx, dx+1.4*R, Color(20, 20, 20));
				sw.End();						
			}
		}
		{
			ImageBuffer ib(int(2*r)+1, int(2*r)+1);
			BufferPainter sw(ib);	
			sw.Clear(RGBAZero());
			
			if (colorType == WhiteType) {
				if (mark == Circle) 
					sw.Circle(r, r, r).Fill(1.5*r, 1.5*r, White(), r, r, r, LtGray());
			} else if (colorType == BlackType) {
				if (mark == Circle) {
					Color lineColor = (colorType == WhiteType) ? Black() : White();
					Color almostColor = (colorType == WhiteType) ? Color(220, 220, 220) : Color(60, 60, 60);
					sw.Circle(r, r, r).Fill(fill);	
					sw.Begin();
						sw.BeginMask();
							sw.Circle(r, r, r).Fill(almostColor);
						sw.End();
						sw.Ellipse(r, r + r/2,   r, r/2).Fill(lineColor);
						sw.Ellipse(r, r - r*0.9, r, r/2).Fill(lineColor);
					sw.End();		
				}
			}
			imgMark = ib;
		}
	}
	img = ib;
	Ctrl::Layout();
}

void Knob::Paint(Draw& w) {
	Size sz = GetSize();
	double maxgrad = fabs(angleEnd - angleBegin);
	if (clockWise)
		maxgrad = 360 - maxgrad;
	double dangle = (value - minv)*maxgrad/(maxv - minv);
	if (clockWise)
		dangle = angleBegin - dangle;
	else
		dangle = angleBegin + dangle;
	double angle = ToRad(dangle);
	double r = min(GetSize().cx/2., GetSize().cy/2.);
	double cx = r;
	double cy = r;
	
	ImageBuffer ib(sz);
	BufferPainter sw(ib);	
	sw.Clear(RGBAZero());
	
	int direction;
	if (clockWise)
		direction = -1;
	else
		direction = 1;

	if (majorstep == 0)
		majorstep = maxv - minv;
	majorstep = (maxv-minv)/int((maxv-minv)/majorstep);
		
	if (minorstep > majorstep || minorstep == 0)
		minorstep = majorstep;
		
	if (minorstep == 0) {
		nminor = 0;
	} else {
		nminor = int(majorstep/minorstep) - 1;
		minorstep = majorstep/int(majorstep/minorstep);
	}
	//minorstep = (maxv-minv)/((nmajor+1)*(nminor+1));
	//majorstep = (maxv-minv)/(nmajor+1);
	nmajor = int((maxv-minv)/majorstep) - 1;
	
	double minorstepa = minorstep*maxgrad/(maxv - minv);	// Step in angle
	double majorstepa = majorstep*maxgrad/(maxv - minv);	

	if (HasFocus()) {
		if (number)
			sw.Circle(cx, cy, 0.65*r+2.5).Stroke(5, GrayColor(240));
		else
			sw.Circle(cx, cy, 0.9*r+2.5).Stroke(5, GrayColor(240));
	}
	
	if (number) 
		r *= 0.65;
	else 
		r *= 0.9;
	
	double capt = 0;
	if (HasCapture()) 
		capt = 1;
	
	Color fill = (colorType == SimpleWhiteType || colorType == WhiteType) ? White() : Color(20, 20, 20);
	double rugg = 0;
	if (style == Rugged) 
		rugg = 0.5+0.05*r;
	sw.Circle(cx, cy, r-capt-rugg).Stroke(1, Gray());
	Color ruggColor = fill;
	if (colorType == WhiteType)
		ruggColor = LtGray();
	if (style == Rugged) 
		PaintRugged(sw, cx, cy, dangle, r-capt, rugg, 4+int(r/6), ruggColor);
	
	if (IsNull(img))
		Layout();
	double realR = r-capt;
	sw.DrawImage(int(capt), int(capt), int(2*(cx-capt)), int(2*(cx-capt)), img);
	if (colorType == SimpleWhiteType || colorType == SimpleBlackType) {
		sw.Circle(cx, cy, realR-rugg).Fill(fill);
				
		Color lineColor = (colorType == SimpleWhiteType) ? Color(20, 20, 20) : White();
		if (mark == Line)
			sw.Move(cx+(r-capt)*cos(angle), cy-(r-capt)*sin(angle))
			  .Line(cx+0.5*r*cos(angle), cy-0.5*r*sin(angle)).Stroke(r/25., lineColor);
		else if (mark == Circle)
			sw.Circle(cx+0.7*r*cos(angle), cy-0.7*r*sin(angle), 0.15*r).Stroke(1, lineColor).Fill(fill);
	} else if (colorType == WhiteType || colorType == BlackType) {
		Color lineColor = (colorType == WhiteType) ? Black() : White();
		Color almostColor = (colorType == WhiteType) ? Color(220, 220, 220) : Color(60, 60, 60);
		if (mark == Line)
			sw.Move(cx+realR*cos(angle), cy-realR*sin(angle))
			  .Line(cx+0.5*r*cos(angle), cy-0.5*r*sin(angle)).Stroke(r/25., lineColor);
		else if (mark == Circle) {
			double ccx = cx+0.7*r*cos(angle);
			double ccy = cy-0.7*r*sin(angle);
			if (IsNull(imgMark))
				Layout();
			sw.DrawImage(int(ccx-0.15*r), int(ccy-0.15*r), imgMark);
		}
	}
	w.DrawImage(0, 0, ib);
}

bool Knob::Key(dword key, int repcnt) {
	double fs = keyStep;
	if (interlocking)
		fs = minorstep;
	
	if(IsEditable())
		switch(key) {
		case K_RIGHT:
		case K_UP:
			Inc(fs);
			return true;
		case K_PAGEUP:
			Inc(minorstep);
			return true;
		case K_LEFT:
		case K_DOWN:
			Dec(fs);
			return true;
		case K_PAGEDOWN:
			Dec(minorstep);
			return true;
		}
	return Ctrl::Key(key, repcnt);
}

double Knob::SliderToClient(Point pos) {
	double r = min(GetSize().cx/2., GetSize().cy/2.);
	double rx = r-pos.x;
	double ry = r-pos.y;
	if (rx*rx + ry*ry > r*r)
		return Null;
	double angle = atan(fabs(ry/rx))*180/M_PI;
	if (pos.x > r) {
		if (pos.y > r)
			angle = 360 - angle;
	} else {
		if (pos.y > r)
			angle += 180;
		else
			angle = 180 - angle;
	}
	return angle;
}	

void Knob::LeftDown(Point pos, dword keyflags) {
	if(!IsEditable())
		return;
	SetWantFocus();
	angleClick = SliderToClient(pos);
	if (IsNull(angleClick))
		return;
	SetCapture();
	Refresh();
}
	
void Knob::LeftRepeat(Point p, dword f) {
	if(!HasCapture())
		LeftDown(p, f);
}

void Knob::LeftUp(Point pos, dword keyflags) {
	if (HasCapture()) {
		if (interlocking)
			value = minorstep*fround((value-minv)/minorstep);
		WhenSlideFinish();
	}
	Refresh();
}

void Knob::MouseMove(Point pos, dword keyflags) {
	if(!HasCapture()) 
		return;
	double angle = SliderToClient(pos);
	if (IsNull(angle)) {
		angleClick = Null;
		return;
	}
	if (IsNull(angleClick)) {
		angleClick = angle;
		return;
	}
	double deltaAngle = angleClick - angle;
	deltaAngle *= clockWise ? 1 : -1;
	if (fabs(deltaAngle) > 180)
		deltaAngle = -Sign(deltaAngle)*(360 - fabs(deltaAngle));
	double maxgrad = fabs(angleEnd - angleBegin);
	if (clockWise)
		maxgrad = 360 - maxgrad;
	double deltaValue = deltaAngle*(maxv - minv)/maxgrad;
	double n = minmax(value + deltaValue, minv, maxv);
	angleClick = angle;
	if (n != value) {
		value = n;
		WhenSlideFinish();
		UpdateActionRefresh();
	}
}

void Knob::SetData(const Value& v) {
	double n = minmax(double(v), minv, maxv);
	if(n != value) {
		value = n;
		UpdateRefresh();
	}
}

Value Knob::GetData() const {
	return value;
}

void Knob::Dec(double st) {
	double n = max(value - st, minv);
	if (interlocking)
		n = minorstep*fround((n-minv)/minorstep);
	if(n != value) {
		value = n;
		WhenSlideFinish();
		Refresh();
	}
}

void Knob::Inc(double st) {
	double n = min(value + st, maxv);
	if (interlocking)
		n = minorstep*fround((n-minv)/minorstep);
	if(n != value) {
		value = n;
		WhenSlideFinish();
		Refresh();
	}
}

void Knob::GotFocus() {
	Refresh();
}

void Knob::LostFocus() {
	Refresh();
}


void FileBrowser::AddFolder(String folder, String &myFolders, TreeCtrl &folders, int id) {
	if (!folder.IsEmpty() && DirectoryExists(folder))
		if (myFolders.Find(folder + ";") < 0) {
			folders.Add(id, NativePathIconX(folder, true, flags), folder, GetFileName(folder), true);	
			myFolders << folder << ";";		
		}
}

struct DisplayNameIcon : public Display {
	Font fnt;

	virtual Size GetStdSize(const Value& q) const {
		ValueArray va = q;
		String fileName = GetFileName(String(va[0]));
		Size sz = GetTextSize(fileName, fnt);
		sz.cx += 20;
		sz.cy = max(sz.cy, 16);
		return sz;
	}
	virtual void Paint(Draw& w, const Rect& r, const Value& q, Color ink, Color paper, dword style) const {
		ValueArray va = q;
		String fileName = GetFileName(String(va[0]));
		Image icon = va[1];
		w.DrawRect(r, paper);
		w.DrawImage(r.left, r.top + (r.Height() - 16) / 2, IsNull(icon) ? Null : icon);
		w.DrawText(r.left + 20, r.top + (r.Height() - Draw::GetStdFontCy()) / 2, fileName, fnt, ink);
		if (GetTextSize(fileName, fnt).cx + 5 > (r.GetWidth() - (int)(0.8*EditString::GetStdHeight()))) {
			Image rightIcon = CtrlImg::right_arrow();
			w.DrawRect(r.right - 6, r.top, r.right, r.bottom, paper);			
			w.DrawImage(r.right - 10, r.top + rightIcon.GetHeight()/2, rightIcon);	
		}
	}
	DisplayNameIcon() { fnt = StdFont(); }
};

struct FileNameConvert : public Convert {
	static ValueArray values;
	Value Format(const Value& v) const {
		values = v;
		ValueArray va = v;		
		return GetFileName(String(va[0]));
	}
	Value Scan(const Value& text) const {
		values.Set(0, AppendFileName(GetFileDirectory(String(values[0])), String(text)));
		return values;
	}
};

ValueArray FileNameConvert::values;

struct FileLenConvert : public Convert {
	Value Format(const Value& v) const {
		if (v == -1)
			return "";
		else
			return BytesToString(int64(v));
	}
};

FileBrowser::FileBrowser() {
	flags = EXT_FILE_FLAGS(USE_TRASH_BIN | BROWSE_LINKS);	// | ASK_BEFORE_DELETE;
	readOnly = false;
	acceptDragAndDrop = true;	
	
	pack.Horz(foldersRect, files); 
	pack.SetPos(3000);
	int height = folder.GetStdHeight();
	foldersRect.Add(foldersLabel.HSizePos().TopPos(0, height));
	foldersRect.Add(folders.HSizePos().VSizePos(height + 1));
	
	Add(folder.HSizePos().TopPos(0, height));
	Add(pack.HSizePos().VSizePos(height + 1));	
	
	Transparent();
	Background(Null);
	pack.Transparent();
	foldersRect.Transparent();
	foldersRect.Background(Null);
	
	folder.UseBrowse(false).UseUp(true).UseHistory(true);
	folder.WhenChange = THISBACK(FolderWhenChange);
	foldersLabel.SetText(t_("Folders"));
	
	folders.NoRoot();
	folders.WhenOpen 	   = THISBACK(FoldersWhenOpen);
	folders.WhenSel	 	   = THISBACK(FoldersWhenSel);
	folders.WhenLeftDouble = THISBACK(FoldersWhenLeftDouble);
	folders.WhenClose 	   = THISBACK(FoldersWhenClose);

	Vector<String> ds = GetDriveList();
	String desktopFolder = GetDesktopFolder();	
	if (!desktopFolder.IsEmpty())
		folders.Add(0, NativePathIconX(desktopFolder, true, flags), desktopFolder, 
															GetFileName(desktopFolder), true);
	int id = folders.Add(0, NativePathIconX(desktopFolder, true, flags), 
													t_("My Folders"), t_("My Folders"), true);
	
	String myFolders = desktopFolder + ";";
	
	AddFolder(GetPersonalFolder(), myFolders, folders, id);
	AddFolder(GetMusicFolder(), myFolders, folders, id);
	AddFolder(GetPicturesFolder(), myFolders, folders, id);
	AddFolder(GetVideoFolder(), myFolders, folders, id);
	AddFolder(GetDownloadFolder(), myFolders, folders, id);
	AddFolder(GetAppDataFolder(), myFolders, folders, id);
	AddFolder(GetTemplatesFolder(), myFolders, folders, id);
	
	for (int i = 0; i < ds.GetCount(); ++i) 
		folders.Add(0, NativePathIconX(ds[i], true, flags), ds[i], ds[i], true);
	noDoOpen = true;
	folders.Open(0);

	files.Reset();
	files.AddColumn(t_("Name")).SetDisplay(Single<DisplayNameIcon>()).Add(3).Margin(2)
				.Edit(textFileName).HeaderTab().Min(50).WhenAction = THISBACK1(SortByColumn, 0);
	files.AddColumn(t_("Size")).SetConvert(Single<FileLenConvert>()).HeaderTab()
				.Min(50).WhenAction = THISBACK1(SortByColumn, 1);
	files.AddColumn(t_("Date")).HeaderTab().Min(50).WhenAction = THISBACK1(SortByColumn, 2);
	files.AddColumn("IsFolder");
	
	files.MultiSelect().HeaderObject().Absolute().Clipboard();
	files.BackPaintHint();
	files.AddIndex();
	files.VertGrid(false).HorzGrid(false);
	files.SetLineCy((int)(0.85*EditString::GetStdHeight()));
	files.HeaderTab(0).SetRatio(10);
	files.ColumnWidths("200 60 120");
	files.EvenRowColor(Blend(SColorMark, SColorPaper, 240));
	files.textFileName = &textFileName;

	files.WhenSel        = THISBACK(FilesWhenSel);
	files.WhenLeftDouble = THISBACK(FilesWhenLeftDouble);
	files.WhenEnterKey   = THISBACK(FilesWhenLeftDouble);
	
	textFileName.SetConvert(Single<FileNameConvert>());
	textFileName.WhenChange = THISBACK(FileNameWhenChanged);
}

void FileBrowser::FilesWhenSel() {
	if (files.GetCursor() < 0)
		return;
	ValueArray va = files.GetColumn(files.GetCursor(), 0);
	if (t_("No files or access not permitted") == va[0]) 
		fileNameSelected = "";
	else
		fileNameSelected = va[0];
	if (WhenSelected)
		WhenSelected();
}

void FileBrowser::FileNameWhenChanged() { 
//	fileNameSelected;		// Old name full path
//	textFileName;			// New name just name
}

void FileBrowser::FoldersWhenOpen(int id) {
	if (noDoOpen) {
		noDoOpen = false;
		return;
	}
	folder.SetData(folders[id]);
	forceOpenTree = true;
	FolderWhenChange();
	forceOpenTree = false;
}
	
void FileBrowser::FoldersWhenClose(int id) { 
	if (folders[id] != t_("File System") && folders[id] != t_("My Folders"))
		folders.RemoveChildren(id);  
}

void FileBrowser::FoldersWhenSel()  { 
	folder.SetData(~folders);
	FolderWhenChange();
	if (WhenTreeSelected)
		WhenTreeSelected();
}

void FileBrowser::FoldersWhenLeftDouble() {
	if (WhenTreeDblClick)
		WhenTreeDblClick();
}

void FileBrowser::FilesWhenLeftDouble() {
	FilesWhenSel();
	
	if (IsSymLink(fileNameSelected)) {
		String newPath = GetSymLinkPath(fileNameSelected);
		if (!newPath.IsEmpty())
			fileNameSelected = newPath;
	}
	if (FileExists(fileNameSelected)) {
		if(WhenAction)
			WhenAction();
	} else if (DirectoryExistsX(fileNameSelected, flags)) {
		folder.SetData(fileNameSelected);
		FolderWhenChange();
	}
}

void FileBrowser::FilesList(String folderName, bool &thereIsAFolder) {
	files.Clear(); 
	FileDataArray fileData(false, flags);
	fileData.Search(folderName, "*.*", false);
	if (fileData.GetCount() == 0) {
		int cy = files.GetLineCy();
		Image img = Rescale(CtrlImg::information(), cy, cy);
		files.Add(t_("No files or access not permitted"), -1, "", img, false, 0);		
		return;
	}
	fileData.SortByName();
	
	thereIsAFolder = false;
	for(int i = 0; i < fileData.GetCount(); i++) {
		String fullFilename = fileData.FullFileName(i);
		String fileName 	= fileData[i].fileName;
		bool isFolder 		= fileData[i].isFolder;
		
		if (isFolder)
			thereIsAFolder = true; 
		files.Add(fullFilename, 
				  isFolder ? -1 : fileData[i].length, 
				  fileData[i].t, 
				  NativePathIconX(fullFilename, DirectoryExistsX(fullFilename, flags), flags), 
				  isFolder ? fileName : "ZZZZZZZ" + fileName);
	}
}

bool HasSubfolders(String folder, int flags) {
	FindFile ff(AppendFileName(folder, "*.*"));
	while(ff) {
		if (DirectoryExistsX(AppendFileName(folder, ff.GetName())))
			return true;
		ff.Next();
	}
	return false;
}

void FileBrowser::FolderWhenChange() {
	int id;
	
	if (~folder == "" || ~folder == t_("My Folders")) {
		id = folders.Find(~folder);
		folders.Open(id, true);		
		files.Clear();
		return;
	}
	String folderName = FileRealName(~folder);
	fileNameSelected = folderName;
	if (folderName.IsEmpty()) {
		Exclamation(Format(t_("Folder %s does not exist or is not available"), ~folder));
		return;
	}
	if (folderName != ~folder)
		folder.SetData(folderName);
	
	String folderNameAux = folderName;
	
	while ((id = folders.Find(folderNameAux)) == -1) {
		String upper = GetUpperFolder(folderNameAux);
		if (upper == folderNameAux)
			return;
		folderNameAux = upper;
	}
	bool thereIsAFolder;
	FilesList(folderName, thereIsAFolder);
	
	if (folderNameAux != folderName || !folders.IsOpen(id) || forceOpenTree) {
		while (folderNameAux != folderName) {
			String newFolderNameAux = GetNextFolder(folderNameAux, folderName);
			noDoOpen = true;
			folders.Open(id, true);
				
			FileDataArray fileData;
			fileData.Search(folderNameAux, "*.*", false);
			fileData.SortByName();
			int newid = -1;
			folders.RemoveChildren(id);  
			for (int i = 0; i < fileData.GetCount(); ++i) {
				String fullName = fileData.FullFileName(i);
				int auxid = folders.Add(id, NativePathIconX(fullName, true, flags), 
									fullName, fileData[i].fileName, HasSubfolders(fullName, flags));
				if (fullName == newFolderNameAux)
					newid = auxid;
			}
			if (newid == -1) {
				Exclamation(Format(t_("Folder %s not found"), DeQtf(folderNameAux)));
				return;
			}
			id = newid;
			folderNameAux = newFolderNameAux;
		}
		FileDataArray fileData;
		fileData.Search(folderName, "*.*", false);
		fileData.SortByName();
		folders.RemoveChildren(id);  
		for (int i = 0; i < fileData.GetCount(); ++i) {
			String fullName = fileData.FullFileName(i);
			if (DirectoryExistsX(fullName, flags)) 
				folders.Add(id, NativePathIconX(fullName, true, flags), fullName, 
											fileData[i].fileName, HasSubfolders(fullName, flags));
		}
		noDoOpen = true;
		folders.Open(id, true);
	}
	if (WhenSelected)
		WhenSelected();
}

void FileBrowser::FilesEnterRow() {
	Exclamation("DELETE");
	int i = 1;
}

void FileBrowser::SortByColumn(int col) {
	static bool order[] = {true, true, true};
	
	if (col < 0 || col > 2)
		return;

	int ordercol = col;
	if (col == 0)
		ordercol = 4;	
	if (order[col]) 
		files.Sort(ordercol, StdValueCompare);
	else
		files.Sort(ordercol, StdValueCompareDesc);
	order[col] = !order[col];
}

String FileBrowser::GetFile() {
	return fileNameSelected;
}

String FileBrowser::GetFolder() {
	return ~folders;
}


AboutUpp::AboutUpp() {
	about.SetQTF(GetTopic("topic://Controls4U/src/About$en-us"), Zoom(130, 1024));
	about.SetZoom(Zoom(1, 1));
	about.RightPos(0, 0).VSizePos();
	about.HMargins(4);
	about.SetFrame(NullFrame());
	about.NoLazy();
	Add(about.SizePos());
}