/* 
   NSPrintInfo.m

   Stores information used in printing

   Copyright (C) 1996,1997 Free Software Foundation, Inc.

   Author:  Simon Frankau <sgf@frankau.demon.co.uk>
   Date: July 1997
   
   This file is part of the GNUstep GUI Library.

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
   
   This library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with this library; see the file COPYING.LIB.
   If not, write to the Free Software Foundation,
   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/ 

#include <Foundation/NSArray.h>
#include <Foundation/NSBundle.h>
#include <Foundation/NSDebug.h>
#include <Foundation/NSDictionary.h>
#include <Foundation/NSException.h>
#include <Foundation/NSEnumerator.h>
#include <Foundation/NSValue.h>
#include <AppKit/NSPrinter.h>

#include <AppKit/NSPrintInfo.h>

#define NSNUMBER(val) [NSNumber numberWithInt: val]
#define DICTSET(dict, obj, key) \
   [dict setObject: obj forKey: key]

// FIXME: retain/release of dictionary with retain/release of printInfo?

// Class variables:
NSPrintInfo *sharedPrintInfoObject = nil;
NSMutableDictionary *printInfoDefaults = nil;
NSDictionary *paperSizes = nil;

@interface NSPrintInfo (private)
+ initPrintInfoDefaults;
@end

/**
  <unit>
  <heading>Class Description</heading>
  <p>
  NSPrintInfo is a storage object that stores information that describes
  how a view is to printed and the destination information for printing.
  </p>
  </unit>
*/

@implementation NSPrintInfo

//
// Class methods
//
+ (void)initialize
{
  if (self == [NSPrintInfo class])
    {
      // Initial version
      [self setVersion:1];
    }
}

//
// Managing the Shared NSPrintInfo Object 
//
+ (void)setSharedPrintInfo:(NSPrintInfo *)printInfo
{
  sharedPrintInfoObject = printInfo;
}

+ (NSPrintInfo *)sharedPrintInfo
{
  if (!sharedPrintInfoObject)
    {
      if (!printInfoDefaults)
	[NSPrintInfo initPrintInfoDefaults];
      sharedPrintInfoObject = [[self alloc]
				initWithDictionary:printInfoDefaults]; 
    }
  return sharedPrintInfoObject;
}

//
// Managing the Printing Rectangle 
//
+ (NSSize)sizeForPaperName:(NSString *)name
{
  return [[self defaultPrinter] pageSizeForPaper:name];
}

//
// Specifying the Printer 
//
+ (NSPrinter *)defaultPrinter
{
  if (!printInfoDefaults)
    [NSPrintInfo initPrintInfoDefaults];
  return [printInfoDefaults objectForKey:NSPrintPrinter];
}

+ (void)setDefaultPrinter:(NSPrinter *)printer
{
  if (!printInfoDefaults)
    [NSPrintInfo initPrintInfoDefaults];
  [printInfoDefaults setObject:printer forKey:NSPrintPrinter];
}

//
// Instance methods
//
//
// Creating and Initializing an NSPrintInfo Instance 
//
- (id)initWithDictionary:(NSDictionary *)aDict
{
  [super init];
  _info = [[NSMutableDictionary alloc] initWithDictionary:aDict];
  return self;
}

- (void) dealloc
{
  RELEASE(_info);
  [super dealloc];
}

- (id) copyWithZone: (NSZone*)z
{
  NSPrintInfo *new = (NSPrintInfo *)NSCopyObject(self, 0, z);

  new->_info = [_info mutableCopyWithZone: z];

  return new;
}

//
// Managing the Printing Rectangle 
//
- (float)bottomMargin
{
  return [(NSNumber *)[_info objectForKey:NSPrintBottomMargin] floatValue];
}

- (float)leftMargin
{
  return [(NSNumber *)[_info objectForKey:NSPrintLeftMargin] floatValue];
}

- (NSPrintingOrientation)orientation
{
  return [(NSNumber *)[_info objectForKey:NSPrintOrientation] intValue];
}

- (NSString *)paperName
{
  return [_info objectForKey:NSPrintPaperName];
}

- (NSSize)paperSize
{
  return [(NSValue *)[_info objectForKey:NSPrintPaperSize] sizeValue];
}

- (float)rightMargin
{
  return [(NSNumber *)[_info objectForKey:NSPrintRightMargin] floatValue];
}

- (void)setBottomMargin:(float)value
{
  [_info setObject:[NSNumber numberWithFloat:value]
	forKey:NSPrintBottomMargin];
}

- (void)setLeftMargin:(float)value
{
  [_info setObject:[NSNumber numberWithFloat:value]
	forKey:NSPrintLeftMargin];
}

- (void)setOrientation:(NSPrintingOrientation)mode
{
  NSSize size;
  [_info setObject:[NSNumber numberWithInt:mode]
	forKey:NSPrintOrientation];
  /* Set the paper size accordingly */
  size = [self paperSize];
  if ((mode == NSPortraitOrientation && size.width > size.height)
      || (mode == NSLandscapeOrientation && size.width < size.height))
    {
      float tmp = size.width;
      size.width = size.height;
      size.height = tmp;
      [_info setObject: [NSValue valueWithSize: size] 
	        forKey: NSPrintPaperSize];
    }
}

- (void)setPaperName:(NSString *)name
{
  DICTSET(_info, name, NSPrintPaperName);
  DICTSET(_info, 
	  [NSValue valueWithSize: [NSPrintInfo sizeForPaperName: name]],
	  NSPrintPaperSize);
}

- (void)setPaperSize:(NSSize)size
{
  NSPrintingOrientation orient;
  [_info setObject:[NSValue valueWithSize:size]
	forKey:NSPrintPaperSize];
  /* Set orientation accordingly */
  if (size.width <= size.height)
    orient = NSPortraitOrientation;
  else
    orient = NSLandscapeOrientation;
  DICTSET(_info, NSNUMBER(orient), NSPrintOrientation);
}

- (void)setRightMargin:(float)value
{
  [_info setObject:[NSNumber numberWithFloat:value]
	forKey:NSPrintRightMargin];
}

- (void)setTopMargin:(float)value
{
  [_info setObject:[NSNumber numberWithFloat:value]
	forKey:NSPrintTopMargin];
}

- (float)topMargin
{
  return [(NSNumber *)[_info objectForKey:NSPrintTopMargin] floatValue];
}

//
// Pagination 
//
- (NSPrintingPaginationMode)horizontalPagination
{
  return [(NSNumber *)[_info objectForKey:NSPrintHorizontalPagination]
		      intValue];
}

- (void)setHorizontalPagination:(NSPrintingPaginationMode)mode
{
  [_info setObject:[NSNumber numberWithInt:mode]
	forKey:NSPrintHorizontalPagination];
}

- (void)setVerticalPagination:(NSPrintingPaginationMode)mode
{
  [_info setObject:[NSNumber numberWithInt:mode]
	forKey:NSPrintVerticalPagination];
}

- (NSPrintingPaginationMode)verticalPagination
{
  return [(NSNumber *)[_info objectForKey:NSPrintVerticalPagination] intValue];
}

//
// Positioning the Image on the Page 
//
- (BOOL)isHorizontallyCentered
{
  return [(NSNumber *)[_info objectForKey:NSPrintHorizontallyCentered] 
		      boolValue];
}

- (BOOL)isVerticallyCentered
{
  return [(NSNumber *)[_info objectForKey:NSPrintVerticallyCentered] boolValue];
}

- (void)setHorizontallyCentered:(BOOL)flag
{
  [_info setObject:[NSNumber numberWithBool:flag]
	forKey:NSPrintHorizontallyCentered];
}

- (void)setVerticallyCentered:(BOOL)flag
{
  [_info setObject:[NSNumber numberWithBool:flag]
	forKey:NSPrintVerticallyCentered];
}

//
// Specifying the Printer 
//
- (NSPrinter *)printer
{
  return [_info objectForKey:NSPrintPrinter];
}

- (void)setPrinter:(NSPrinter *)aPrinter
{
  [_info setObject:aPrinter forKey:NSPrintPrinter];
}

//
// Controlling Printing
//
- (NSString *)jobDisposition
{
  return [_info objectForKey:NSPrintJobDisposition];
}

- (void)setJobDisposition:(NSString *)disposition
{
  [_info setObject:disposition forKey:NSPrintJobDisposition];
}

- (void)setUpPrintOperationDefaultValues
{
  NSEnumerator *keys, *objects;
  NSString *key;
  id object;

  if (!printInfoDefaults)
    [NSPrintInfo initPrintInfoDefaults];
  keys = [printInfoDefaults keyEnumerator];
  objects = [printInfoDefaults objectEnumerator];
  while ((key = [keys nextObject]))
    {
      object = [objects nextObject];
      if (![_info objectForKey:key])
	[_info setObject:object forKey:key];
    }
}

//
// Accessing the NSPrintInfo Object's Dictionary 
//
- (NSMutableDictionary *)dictionary
{
  return _info;
}

//
// NSCoding protocol
//
- (void) encodeWithCoder: (NSCoder*)aCoder
{
  [aCoder encodePropertyList: _info];
}

- (id) initWithCoder: (NSCoder*)aDecoder
{
  _info = RETAIN([aDecoder decodePropertyList]);
  return self;
}

//
// Private method to initialise printing defaults dictionary
//
+ initPrintInfoDefaults
{
  NSString *defPrinter, *str;
  NSString *path;
  NSPrinter *printer;

#ifdef GNUSTEP_BASE_LIBRARY
  path = [NSBundle pathForGNUstepResource: @"PrintDefaults"
				  ofType: nil
				  inDirectory: @"PrinterAdmin"];
#else
  NSBundle *adminBundle;

  adminBundle = [NSBundle bundleWithPath: @GNUSTEP_INSTALL_LIBDIR] 
  path = [adminBundle pathForResource: @"PrintDefaults" 
		      ofType: nil
		      inDirectory: @"PrinterAdmin"];
#endif

  defPrinter = nil;
  if (path != nil && [path length] != 0)
    {
      printInfoDefaults = [NSMutableDictionary dictionaryWithContentsOfFile:path];
      RETAIN(printInfoDefaults);
      defPrinter = [printInfoDefaults objectForKey:NSPrintPrinter];
      printer = [NSPrinter printerWithName: defPrinter];
      if (printer == nil)
	defPrinter = nil;
    }
  if (printInfoDefaults == nil)
    {
      NSDebugLog(@"NSPrinter", @"Could not find printing defaults table");
      printInfoDefaults = RETAIN([NSMutableDictionary dictionary]);
    }
  if (defPrinter == nil)
    {
      defPrinter = [[NSPrinter printerNames] objectAtIndex: 0];
      DICTSET(printInfoDefaults, defPrinter, NSPrintPrinter);
    }

  /* Replace the printer name with a real NSPrinter object */
  printer = [NSPrinter printerWithName: defPrinter];
  DICTSET(printInfoDefaults, [NSPrinter printerWithName: defPrinter], NSPrintPrinter);

  /* Set up other defaults from the printer object */
  str = [printer stringForKey:@"DefaultPageSize" inTable: @"PPD"];
  /* FIXME: Need to check for AutoSelect and probably a million other things... */
  if (str == nil)
    str = @"A4";
  DICTSET(printInfoDefaults, str, NSPrintPaperName);
  DICTSET(printInfoDefaults, 
	  [NSValue valueWithSize: [NSPrintInfo sizeForPaperName: str]],
	  NSPrintPaperSize);

  /* Set default margins. FIXME: Probably should check ImageableArea */
  DICTSET(printInfoDefaults, NSNUMBER(36), NSPrintRightMargin);
  DICTSET(printInfoDefaults, NSNUMBER(36), NSPrintLeftMargin);
  DICTSET(printInfoDefaults, NSNUMBER(72), NSPrintTopMargin);
  DICTSET(printInfoDefaults, NSNUMBER(72), NSPrintBottomMargin);
  DICTSET(printInfoDefaults, NSNUMBER(NSPortraitOrientation), 
	  NSPrintOrientation);
  //DICTSET(printInfoDefaults, NSNUMBER(NSClipPagination), 
  //	  NSPrintHorizontalPagination);
  DICTSET(printInfoDefaults, NSNUMBER(NSAutoPagination), 
	  NSPrintVerticalPagination);
  DICTSET(printInfoDefaults, NSNUMBER(1), NSPrintHorizontallyCentered);
  DICTSET(printInfoDefaults, NSNUMBER(1), NSPrintVerticallyCentered);

  return self;
}

@end