/* > printwin.c */
/* Device dependent part of Survex Win32 driver */
/* Copyright (C) 1993-2000 Olly Betts
 * Copyright (C) 2001 Philip Underwood
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include <time.h>
#include <ctype.h>
#include <float.h>
#include <limits.h>

#include "useful.h"
#include "filename.h"
#include "message.h"
#include "prio.h"
#include "filelist.h"
#include "debug.h" /* for BUG and ASSERT */
#include "prcore.h"
#include "ini.h"
#include <windows.h>

#define POINTS_PER_INCH 72.0f
#define POINTS_PER_MM ((float)(POINTS_PER_INCH) / (MM_PER_INCH))

static float MarginLeft, MarginRight, MarginTop, MarginBottom;
static int fontsize, fontsize_labels;
static float LineWidth;

static char *fontname, *fontname_labels;

#define WIN_TS 9 /* size of alignment 'ticks' on multipage printouts */
#define WIN_CROSS_SIZE 2 /* length of cross arms (in points!) */

#define fontname_symbol "Symbol"

static const char *win_Name(void);
static int win_Pre(int pagesToPrint, const char *title);
static void win_NewPage(int pg, int pass, int pagesX, int pagesY);
static void win_Init(FILE *fh, const char *pth, float *pscX, float *pscY);
static void win_MoveTo(long x, long y);
static void win_DrawTo(long x, long y);
static void win_DrawCross(long x, long y);
static void win_WriteString(const char *s);
static void win_DrawCircle(long x, long y, long r);
static void win_ShowPage(const char *szPageDetails);
static void win_Quit(void);

/*device ps = {*/
device printer = {
   win_Name,
   win_Init,
   win_Pre,
   win_NewPage,
   win_MoveTo,
   win_DrawTo,
   win_DrawCross,
   NULL,
   win_WriteString,
   win_DrawCircle,
   win_ShowPage,
   NULL, /* ps_Post,*/
   win_Quit
};

HDC pd; /* printer context */

int midtextheight; /*height of text*/

float scX,scY;

static border clip;

static long xpPageWidth, ypPageDepth;


static const char *
win_Name(void)
{
   return "Win32 Printer";
}

static long x_t, y_t;

static void
win_MoveTo(long x, long y)
{
   x_t = x - clip.x_min;
   y_t = clip.y_max - y;
   MoveToEx(pd,x_t,y_t,NULL);
}

static void
win_DrawTo(long x, long y)
{
   x_t = x - clip.x_min;
   y_t = clip.y_max - y;
   LineTo(pd,x_t,y_t);
}

static void
win_DrawCross(long x, long y)
{
#define CS WIN_CROSS_SIZE
#define CS2 (2 * WIN_CROSS_SIZE)
  win_MoveTo(x-CS,y);
  win_DrawTo(x+CS,y);
  win_MoveTo(x,y-CS);
  win_DrawTo(x,y+CS);
  win_MoveTo(x,y);
#undef CS
#undef CS2
}


static void
win_WriteString(const char *s)
{
  TextOut(pd,x_t,y_t-midtextheight,s,strlen(s));
}

static void
win_DrawCircle(long x, long y, long r)
{
  x_t = x - clip.x_min;
  y_t = clip.y_max - y;
  Ellipse(pd,x_t - r, y_t - r,x_t + r, y_t + r);
}


static int
win_Pre(int pagesToPrint, const char *title)
{
  PRINTDLGA psd = {0};
  DOCINFO info = {0};
  psd.lStructSize = 66;
  psd.hwndOwner = NULL;
  psd.hDevMode = NULL;
  psd.hDevNames = NULL; 
  psd.hDC = NULL;
  psd.Flags = PD_RETURNDC + PD_RETURNDEFAULT;
  psd.hInstance = NULL;
  PrintDlgA(&psd);
  pd = psd.hDC;
  info.lpszDocName = title;
  info.cbSize = sizeof(DOCINFO);
  StartDoc(pd,&info);
  return 1; /* only need 1 pass */
}

static void
win_NewPage(int pg, int pass, int pagesX, int pagesY)
{
   int x, y;

   if (pass == -1) {
      fBlankPage = fFalse; /* hack for now */
      return;
   }

   x = (pg - 1) % pagesX;
   y = pagesY - 1 - ((pg - 1) / pagesX);

   clip.x_min = (long)x * xpPageWidth;
   clip.y_min = (long)y * ypPageDepth;
   clip.x_max = clip.x_min + xpPageWidth; /* dm/pcl/ps had -1; */
   clip.y_max = clip.y_min + ypPageDepth; /* dm/pcl/ps had -1; */
   StartPage(pd);
   drawticks(clip, WIN_TS, x, y);
}

static void
win_ShowPage(const char *szPageDetails)
{
  win_MoveTo((long)(6 * scX) + clip.x_min,(long) (clip.y_min - (7 * scY)));
  win_WriteString(szPageDetails);
  EndPage(pd);
}

/* Initialise HPGL/PS printer routines */
static void
win_Init(FILE *fh, const char *pth, float *pscX, float *pscY)
{
   /* name and size of font to use for text */
  TEXTMETRIC temp;
  PRINTDLGA psd = {0};
  psd.lStructSize = 66;
  psd.hwndOwner = NULL;
  psd.hDevMode = NULL;
  psd.hDevNames = NULL; 
  psd.hDC = NULL;
  psd.Flags = PD_RETURNDC + PD_RETURNDEFAULT;
  psd.hInstance = NULL;
  PrintDlgA(&psd);
  fontsize = 12;
  
  PaperWidth = GetDeviceCaps(psd.hDC,HORZSIZE);
  PaperDepth = GetDeviceCaps(psd.hDC,VERTSIZE);
  xpPageWidth = GetDeviceCaps(psd.hDC,HORZRES);
  ypPageDepth = GetDeviceCaps(psd.hDC,VERTRES);
  MarginLeft = MarginBottom = 0;
  MarginRight = PaperWidth;
  MarginTop = PaperDepth;
  LineWidth = 0;
  scX = *pscX = xpPageWidth/PaperWidth;
  scY = *pscY = ypPageDepth/PaperDepth;
  xpPageWidth--;
  ypPageDepth = ypPageDepth - (int)(10 * *pscY);
  GetTextMetrics(psd.hDC,&temp);
  midtextheight = temp.tmAscent;
  DeleteDC(psd.hDC);
  
   /* name and size of font to use for station labels (default to text font) */
  fontname_labels = fontname;
  fontsize_labels = fontsize;
}

static void
win_Quit(void)
{
  EndDoc(pd);
  DeleteDC(pd);
}