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/*
 *  R.app : a Cocoa front end to: "R A Computer Language for Statistical Data Analysis"
 *  
 *  R.app Copyright notes:
 *                     Copyright (C) 2004-5  The R Foundation
 *                     written by Stefano M. Iacus and Simon Urbanek
 *
 *                  
 *  R Copyright notes:
 *                     Copyright (C) 1995-1996   Robert Gentleman and Ross Ihaka
 *                     Copyright (C) 1998-2001   The R Development Core Team
 *                     Copyright (C) 2002-2004   The R Foundation
 *
 *  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.
 *
 *  A copy of the GNU General Public License is available via WWW at
 *  http://www.gnu.org/copyleft/gpl.html.  You can also obtain it by
 *  writing to the Free Software Foundation, Inc., 59 Temple Place,
 *  Suite 330, Boston, MA  02111-1307  USA.
 */

#import "../RGUI.h"
#import "RQuartz.h"
#import "../RController.h"
#import "RDeviceView.h"
#import "../REngine/REngine.h"

#include <Graphics.h>
#include <Rdevices.h>

// we'll need to clarify if any special action is necessary ...
// the point is that we're not actually using R, so it makes no sense to inform the R handler
#define QUARTZ_WORK_BEGIN
#define QUARTZ_WORK_END

@implementation RQuartz

- (RDeviceView *)getDeviceView{
    return deviceView;
}

- (NSWindow *)getDeviceWindow{
    return deviceWindow;
}

- (NSTextView *)textView {
    return nil;
}


- (BOOL)windowShouldClose:(id)sender{
    KillDevice(GetDevice([deviceView getDevNum]));
    return YES;
}

- (id)init
{
    self = [super init];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(windowDidResize:) name:NSWindowDidResizeNotification object:deviceWindow];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(windowDidDeminiaturize:) name:NSWindowDidDeminiaturizeNotification object:deviceWindow];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationDidUnhide:) name:NSApplicationDidUnhideNotification object:deviceWindow];
    return self;
}

- (void) dealloc {
    [[NSNotificationCenter defaultCenter] removeObserver:self];
    [super dealloc];
}

- (NSString *)windowNibName
{
    return @"RQuartz";
}

- (void)windowControllerDidLoadNib:(NSWindowController *) aController
{
    [super windowControllerDidLoadNib:aController];
    [deviceWindow setInitialFirstResponder: deviceView]; 
    [deviceWindow setDelegate:self];
}

- (NSRect)windowWillUseStandardFrame:(NSWindow *)sender defaultFrame:(NSRect)defaultFrame {
//  NSLog(@"windowWillUseStandardFrame called");
    return defaultFrame;
}

- (void)windowWillClose:(NSNotification *)aNotification {
    [[NSNotificationCenter defaultCenter] removeObserver:self]; 
}


- (void)windowDidResize:(NSNotification *)aNotification {
//  NSLog(@"windowDidResize called %@", aNotification);
//  NSLog(@"window %@", deviceWindow);
    if ([aNotification object] == deviceWindow) {
        [deviceView setPDFDrawing:YES];
        [deviceView drawRect:[deviceView frame]];       
    }
}

- (void)windowDidDeminiaturize:(NSNotification *)aNotification {
//  NSLog(@"windowDidDeminiaturize called");
    if ([aNotification object] == deviceWindow) {
        [deviceView setPDFDrawing:YES];
        [deviceView drawRect:[deviceView frame]];       
    }
}

- (void)applicationDidUnhide:(NSNotification *)aNotification {
    //  NSLog(@"applicationDidUnhide called");
    [deviceView setPDFDrawing:YES];
    [deviceView drawRect:[deviceView frame]];       
}

- (void)deminiaturize:(id)sender
{
//  NSLog(@"dem:%d",sender);
}


+ (void) changeDocumentTitle: (NSDocument *)document Title:(NSString *)title{

        NSEnumerator *e = [[document windowControllers] objectEnumerator];
        NSWindowController *wc = nil;
        
        while (wc = [e nextObject]) {
            NSWindow *window = [wc window];
            [window setTitle: title];
        }
}

/* This method is only invoked from the GUI to activate the device with CMD+SHIFT+A */
- (IBAction) activateQuartzDevice: (id) sender {
    selectDevice([deviceView getDevNum]);
}


/* this function return the "kind" of document, not just the type which is "pdf
for quartz. This method is called by RController -> activateQuartz
*/
- (NSString *)whoAmI{
    return @"quartz";
}

- (BOOL) knowsPageRange: (NSRangePointer) range
{
    range->location = 1;
    range->length = 1;
    
    return YES;
}

- (NSRect ) rectForPage: (int) pageNumber
{
    NSPrintInfo *info = [NSPrintInfo sharedPrintInfo];
    return [info imageablePageBounds];
}

- (IBAction)printDocument:(id)sender
{
    NSPrintInfo *printInfo;
    NSPrintInfo *sharedInfo;
    NSPrintOperation *printOp;
    NSMutableDictionary *printInfoDict;
    NSMutableDictionary *sharedDict;
    
    sharedInfo = [NSPrintInfo sharedPrintInfo];
    sharedDict = [sharedInfo dictionary];
    printInfoDict = [NSMutableDictionary dictionaryWithDictionary:
        sharedDict];

    printInfo = [[NSPrintInfo alloc] initWithDictionary: printInfoDict];
    [printInfo setHorizontalPagination: NSFitPagination];
    [printInfo setVerticalPagination: NSAutoPagination];
    [printInfo setVerticallyCentered:NO];
    
    QUARTZ_WORK_BEGIN;
    [deviceView setPDFDrawing:YES];
    printOp = [NSPrintOperation printOperationWithView:deviceView 
                                             printInfo:printInfo];
    [printOp setShowPanels:YES];
    [printOp runOperation];
    [deviceView setPDFDrawing:NO];
    QUARTZ_WORK_END;
}

- (IBAction)saveDocumentAs:(id)sender
{
    [self saveDocument:sender];
}

- (IBAction)saveDocument:(id)sender
{
    int answer;
    NSSavePanel *sp;
    sp = [NSSavePanel savePanel];
    [sp setRequiredFileType:@"pdf"];
    [sp setTitle:NLS(@"Save Content of Quartz Device to PDF file")];
    answer = [sp runModal];
    if(answer == NSOKButton) {
        /*  The following code should create a PDF file form the draw: method of deviceView
        unfortunately, lost of things are writting on the pdf file, even those pertaining
        to the sae panel, plus a flieed image of the same picture.
        
        [RController RGUI_RBusy:1];
        [deviceView setPDFDrawing:YES];
        NSData *data = [deviceView dataWithPDFInsideRect:[deviceView bounds]];
        [RController RGUI_RBusy:0];
        [data writeToFile:[sp filename] atomically:NO];     
        [deviceView setPDFDrawing:NO];
        */      
        NSRect r = [deviceView bounds];
        RSEXP *x = [[REngine mainEngine] evaluateString:
            [NSString stringWithFormat:@"dev.copy(device=pdf,file=\"%@\",width=%f,height=%f,version=\"1.4\")",
                [sp filename], r.size.width/72, r.size.height/72]
            ];
        if(x)
            [[REngine mainEngine] executeString:@"dev.off()"];

    }
    
}

- (IBAction)copy:(id)sender
{
    NSPasteboard *pb = [NSPasteboard generalPasteboard];
    // we use PDF as the primary type; owner should be nil, because we could get released (see NSPB docs for details)
    [pb declareTypes: [NSArray arrayWithObjects: NSPDFPboardType, NSTIFFPboardType, nil ] owner:nil];

    QUARTZ_WORK_BEGIN;

    [deviceView setPDFDrawing:YES];
    [deviceView lockFocus];
    [deviceView writePDFInsideRect:[deviceView bounds] toPasteboard:pb];
    [deviceView unlockFocus];
    [deviceView setPDFDrawing:NO];

    [deviceView lockFocus];
    NSBitmapImageRep* bitmap = [ [NSBitmapImageRep alloc]
            initWithFocusedViewRect: [deviceView bounds] ];
    [deviceView unlockFocus];
    
    NSData* data1 = [bitmap TIFFRepresentation];
    [pb setData: data1 forType:NSTIFFPboardType];
    [bitmap release];
    
    QUARTZ_WORK_END;
}

@end