/*
 * Printing Routines for the IBM PC using MS Windows
 * Wolfgang Muees 27.10.97
 * Holger Vogt 07.12.01
 */

#include "ngspice/ngspice.h"

#ifdef HAS_WINGUI

#include "ngspice/graph.h"
#include "ngspice/ftedev.h"
#include "ngspice/ftedbgra.h"
#include "ngspice/fteext.h"

/*
 * The ngspice.h file included above defines BOOLEAN (via bool.h) and this
 * clashes with the definition obtained from windows.h (via winnt.h).
 * However, BOOLEAN is not used by this file so we can work round this problem
 * by undefining BOOLEAN before including windows.h
 * SJB - May 2005
 */
#undef BOOLEAN

#define STRICT
#include <windows.h>
#include <windowsx.h>

#include "ngspice/suffix.h"
#ifdef _MSC_VER
#pragma hdrstop
#endif /* _MSC_VER */

#include "winprint.h"	/* function prototypes */

/* Typen */
typedef struct {						/* Extra Printdaten */
	int		ColorIndex;				/* Index auf die akt. Farbe */
	int     LineIndex;  					/* Index auf den akt. Linientyp */
} tPrintData;
typedef tPrintData * tpPrintData;			/* Zeiger darauf */
#define pPrintData(g) ((tpPrintData)(g->devdep))

/* externals */
void WaitForIdle(void);						/* Warte, bis keine Events da */

/* lokale Variablen */
static HFONT			PlotFont = NULL;		/* Font-Merker */
static HFONT			OldFont  = NULL;
#define NumLines 7						/* Anzahl der LineStyles */
static int 			LineTable[NumLines];		/* Speicher fuer die LineStyles */
static HDC				PrinterDC = NULL;	/* Device Context */
#define NumPrintColors 2       				/* vordef. Farben */
static COLORREF 		ColorTable[NumPrintColors];/* Speicher fuer die Farben */
static int				PrinterWidth  = 1000;		/* Breite des Papiers */
static int				PrinterHeight = 1000;		/* Hoehe des Papiers */

/******************************************************************************
 Drucker-Initialisierung
******************************************************************************/

void WPRINT_PrintInit(HWND hwnd)
{
	/* Parameter-Block */
	PRINTDLG pd;

	/* Initialisieren */
	pd.lStructSize = sizeof(PRINTDLG);
	pd.hwndOwner = hwnd;
	pd.hDevMode = NULL;
	pd.hDevNames = NULL;
	pd.hDC = NULL;
	pd.Flags = PD_PRINTSETUP;
	pd.nFromPage = 1;
	pd.nToPage = 1;
	pd.nMinPage = 0;
	pd.nMaxPage = 0;
	pd.nCopies = 1;
	pd.hInstance = NULL;
	pd.lCustData = 0;
	pd.lpfnPrintHook = NULL;
	pd.lpfnSetupHook = NULL;
	pd.lpPrintTemplateName = NULL;
	pd.lpSetupTemplateName = NULL;
	pd.hPrintTemplate = NULL;
	pd.hSetupTemplate = NULL;

	/* Default-Drucker initialisieren */
	(void) PrintDlg( &pd);

	/* Speicher freigeben */
	if( pd.hDevMode)  GlobalFree( pd.hDevMode);
	if( pd.hDevNames) GlobalFree( pd.hDevNames);
}

/* Abort-Procedur zum Drucken */
BOOL CALLBACK WPRINT_Abort( HDC hdc, int iError)
{
    NG_IGNORE(hdc);
    NG_IGNORE(iError);

    /* Multitasking */
	WaitForIdle();

	/* Warten */
	return TRUE;
}


/******************************************************************************
WPRINT_Init() stellt die Verbindung zur Grafik her. Dazu gehoert die Feststellung
von
	dispdev->numlinestyles
	dispdev->numcolors
	dispdev->width
	dispdev->height

WPRINT_Init() gibt 0 zurueck, falls kein Fehler auftrat.

******************************************************************************/

int WPRINT_Init(void)
{
	int    pWidth;
	int	 pHeight;

	/* Printer-DC holen */
	if (!PrinterDC) {

		/* Parameter-Block */
		PRINTDLG pd;

		/* Initialisieren */
		pd.lStructSize = sizeof(PRINTDLG);
		pd.hwndOwner = NULL;
		pd.hDevMode = NULL;
		pd.hDevNames = NULL;
		pd.hDC = NULL;
		pd.Flags = PD_NOPAGENUMS | PD_NOSELECTION | PD_RETURNDC;
		pd.nFromPage = 1;
		pd.nToPage = 1;
		pd.nMinPage = 0;
		pd.nMaxPage = 0;
		pd.nCopies = 1;
		pd.hInstance = NULL;
		pd.lCustData = 0;
		pd.lpfnPrintHook = NULL;
		pd.lpfnSetupHook = NULL;
		pd.lpPrintTemplateName = NULL;
		pd.lpSetupTemplateName = NULL;
		pd.hPrintTemplate = NULL;
		pd.hSetupTemplate = NULL;

		/* Default-Drucker initialisieren */
		(void) PrintDlg( &pd);

		/* Speicher freigeben */
		if( pd.hDevMode)  GlobalFree( pd.hDevMode);
		if( pd.hDevNames) GlobalFree( pd.hDevNames);

		/* DC holen */
		PrinterDC = pd.hDC;
		if (!PrinterDC) return 1;

		/* Abmasze bestimmen */
		PrinterWidth	= GetDeviceCaps( PrinterDC, HORZRES);
		PrinterHeight	= GetDeviceCaps( PrinterDC, VERTRES);
		pWidth  		= GetDeviceCaps( PrinterDC, HORZSIZE);
		pHeight 		= GetDeviceCaps( PrinterDC, VERTSIZE);

		/* Mapping Mode setzen (fuer Kreise) */
		if ( pWidth > pHeight)
			/* Querformat */
			PrinterWidth = (PrinterHeight * pWidth) / pHeight;
		else
			/* Hochformat */
			PrinterHeight = (PrinterWidth * pHeight) / pWidth;

		SetMapMode( PrinterDC, MM_ISOTROPIC);
		SetWindowExtEx( PrinterDC, PrinterWidth, PrinterHeight, NULL);
		SetViewportExtEx( PrinterDC, PrinterWidth, PrinterHeight, NULL);

		/* nicht hoeher als breit zeichnen */
		if (pWidth < pHeight) {
			/* Papier im Hochformat */
			PrinterHeight = PrinterWidth;
		}

		/* Initialisierungen des Display-Descriptors */
		dispdev->width         = PrinterWidth;
		dispdev->height 	   = PrinterHeight;
		dispdev->numlinestyles = NumLines;
		dispdev->numcolors     = NumPrintColors;

		/* Farben initialisieren */
		ColorTable[0] = RGB(255,255,255);	/* Weisz */
		ColorTable[1] = RGB(  0,  0,  0);	/* Schwarz */

		/* LineStyles initialisieren */
		LineTable[0] = PS_SOLID;
		LineTable[1] = PS_DOT;   	/* Gitter */
		LineTable[2] = PS_SOLID;    /* Erste Linie */
		LineTable[3] = PS_DOT;   	/* Zweite Linie */
		LineTable[4] = PS_DASH;     /* usw */
		LineTable[5] = PS_DASHDOT;
		LineTable[6] = PS_DASHDOTDOT;

		/* Font */
		if (!PlotFont) {
			PlotFont = CreateFont( 0,0,0,0, FW_DONTCARE, FALSE, FALSE, FALSE,
				ANSI_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
				PROOF_QUALITY, FIXED_PITCH, NULL);
		}

		/* Abort-Prozedur setzen */
		SetAbortProc( PrinterDC, WPRINT_Abort);
	}
	/* fertig */
	return (0);
}


/******************************************************************************
 WPRINT_NewViewport() oeffnet den Drucker

 WPRINT_NewViewport() gibt 0 zurueck, falls erfolgreich

******************************************************************************/

int WPRINT_NewViewport( GRAPH * graph)
{
	TEXTMETRIC 		tm;
	tpPrintData 	pd;
	DOCINFO			di;

	/* Parameter testen */
	if (!graph) return 1;

	/* Initialisiere, falls noch nicht geschehen */
	if (WPRINT_Init() != 0) {
		externalerror("Can't initialize Printer.");
		return(1);
	}

	/* Device dep. Info allocieren */
	pd = calloc(1, sizeof(tPrintData));
	if (!pd) return 1;
	graph->devdep = pd;

	/* Setze den Color-Index */
	pd->ColorIndex = 0;

	/* Font setzen */
	OldFont = SelectObject( PrinterDC, PlotFont);

	/* Font-Parameter abfragen */
	if (GetTextMetrics( PrinterDC, &tm)) {
		graph->fontheight = tm.tmHeight;
		graph->fontwidth  = tm.tmAveCharWidth;
	}

	/* Setze den Linien-Index */
	pd->LineIndex = 0;

	/* Viewport-Parameter setzen */
	graph->viewport.height 	= PrinterHeight;
	graph->viewport.width  	= PrinterWidth;

	/* Absolut-Parameter setzen */
	graph->absolute.xpos 	= 0;
	graph->absolute.ypos 	= 0;
	graph->absolute.width 	= PrinterWidth;
	graph->absolute.height 	= PrinterHeight;

	/* Druckauftrag anmelden */
	di.cbSize 		= sizeof( DOCINFO);
	di.lpszDocName 	= graph->plotname;
	di.lpszOutput	= NULL;
	if (StartDoc( PrinterDC, &di) <= 0) return 1;
	if (StartPage( PrinterDC) <= 0) return 1;

	/* titel drucken */
	if (graph->plotname) {
		UINT align;
		align = GetTextAlign( PrinterDC);
		SetTextAlign( PrinterDC, TA_RIGHT | TA_TOP | TA_NOUPDATECP);
		TextOut( PrinterDC, PrinterWidth-graph->fontwidth, 1, graph->plotname,
			(int)strlen(graph->plotname));
		SetTextAlign( PrinterDC, align);
	}

	/* fertig */
	return(0);
}

int WPRINT_Close(void)
{
	if (PrinterDC) {
		EndPage( PrinterDC);
		EndDoc( PrinterDC);
		if (OldFont) {
			SelectObject( PrinterDC, OldFont);
			OldFont = NULL;
		}
		DeleteObject( PlotFont);
		DeleteDC( PrinterDC);
		PrinterDC = NULL;
	}
	return (0);
}


int WPRINT_Clear(void)
{
	return 0;
}


int WPRINT_DrawLine(int x1, int y1, int x2, int y2)
{
	tpPrintData  pd;
	HPEN 		 OldPen;
	HPEN    	 NewPen;
	int			 ColIndex;

	if (!currentgraph) return 0;
	pd = pPrintData(currentgraph);
	if (!pd) return 0;

	/* Farben/Dicke */
	ColIndex = pd->ColorIndex;
	if (ColIndex > 1)
		ColIndex = 1;

	MoveToEx(PrinterDC, x1, PrinterHeight - y1, NULL);
	NewPen = CreatePen( LineTable[pd->LineIndex], 0, ColorTable[ColIndex] );
	OldPen = SelectObject(PrinterDC, NewPen);
	LineTo(PrinterDC, x2, PrinterHeight - y2);
	OldPen = SelectObject(PrinterDC, OldPen);
	DeleteObject( NewPen);
	return (0);
}


int WPRINT_Arc(int x0, int y0, int radius, double theta, double delta_theta)
	 /*
	  * Notes:
	  *    Draws an arc of <radius> and center at (x0,y0) beginning at
	  *    angle theta (in rad) and ending at theta + delta_theta
	  */
{
	tpPrintData pd;
	HPEN   	OldPen;
	HPEN   	NewPen;
	int		left, right, top, bottom;
	int		xs, ys, xe, ye;
	int    	yb;
	int		direction;
	int		ColIndex;
	double	r;
	double  dx0;
	double	dy0;

	if (!currentgraph) return 0;
	pd = pPrintData(currentgraph);
	if (!pd) return 0;

	ColIndex = pd->ColorIndex;
	if (ColIndex > 1)
		ColIndex = 1;

	direction = AD_COUNTERCLOCKWISE;
	if (delta_theta < 0) {
		theta = theta + delta_theta;
		delta_theta = - delta_theta;
		direction = AD_CLOCKWISE;
	}
	SetArcDirection( PrinterDC, direction);

	/* Geometrische Vorueberlegungen */
	yb   	= PrinterHeight;
	left 	= x0 - radius;
	right 	= x0 + radius;
	top 	= y0 + radius;
	bottom 	= y0 - radius;

	r = radius;
	dx0 = x0;
	dy0 = y0;
	xs = (int)(dx0 + (r * cos(theta)));
	ys = (int)(dy0 + (r * sin(theta)));
	xe = (int)(dx0 + (r * cos(theta + delta_theta)));
	ye = (int)(dy0 + (r * sin(theta + delta_theta)));

	/* Zeichnen */
	NewPen = CreatePen( LineTable[pd->LineIndex], 0, ColorTable[ColIndex] );
	OldPen = SelectObject(PrinterDC, NewPen);
	Arc( PrinterDC, left, yb-top, right, yb-bottom, xs, yb-ys, xe, yb-ye);
	OldPen = SelectObject(PrinterDC, OldPen);
	DeleteObject( NewPen);

	return 0;
}

int WPRINT_Text( char * text, int x, int y, int degrees)
{
	tpPrintData pd;
	int		ColIndex;
    NG_IGNORE(degrees);

	if (!currentgraph) return 0;
	pd = pPrintData(currentgraph);
	if (!pd) return 0;

	ColIndex = pd->ColorIndex;
	if (ColIndex > 1) {
		ColIndex = 1;
	}

	SetTextColor( PrinterDC, ColorTable[ColIndex]);
	TextOut( PrinterDC, x, PrinterHeight - y - currentgraph->fontheight, text, (int) strlen(text));
	return (0);
}


int WPRINT_DefineColor(int colorid, double red, double green, double blue)
{
	/* nix */
    NG_IGNORE(colorid);
    NG_IGNORE(red);
    NG_IGNORE(green);
    NG_IGNORE(blue);
	return (0);
}

int WPRINT_DefineLinestyle(int num, int mask)
{
	/* nix */
    NG_IGNORE(num);
    NG_IGNORE(mask);
	return (0);
}

int WPRINT_SetLinestyle(int style)
{
	tpPrintData pd;
	if (!currentgraph) return 0;
	pd = pPrintData(currentgraph);
	if (!pd) return 0;

	pd->LineIndex = style % NumLines;
	return (0);
}

int WPRINT_SetColor( int color)
{
	tpPrintData pd;
	if (!currentgraph) return 0;
	pd = pPrintData(currentgraph);
	if (!pd) return 0;

	pd->ColorIndex = color;
	return (0);
}

int WPRINT_Update(void)
{
	return (0);
}

int WPRINT_DiagramReady(void)
{
	return 0;
}

#endif /* HAS_WINGUI */