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FigureCell.m

/*
    This file is part of HelpViewer (http://www.roard.com/helpviewer)
    Copyright (C) 2003 Nicolas Roard (nicolas@roard.com)

    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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "FigureCell.h"

@implementation FigureCell

- (id) initWithSize: (NSSize) size 
{
    [super init];
    _size = size;
    _image = nil;
    _legends = nil;
    return self;    
}

- (void) setLegends: (NSArray*) legends
{
    ASSIGN (_legends, legends);
}

- (void) setImage:  (NSImage*) img
{
    ASSIGN (_image, img);
}

- (NSSize) cellSize 
{
    return _size;
}

- (void) resize: (id) sender
{
      [self resizeWithTextView: [sender object]];
}

- (void) resizeWithTextView: (NSTextView*) textView
{
    float minimalHeight;
    float imageWidth = [_image size].width;
    float imageHeight = [_image size].height;   

    if (_legends)
    {
            int i;
            float interspace = 20;
            float spaceMargin = 20;
            float border = 12;
            float Margin = ([textView bounds].size.width - imageWidth - 2*spaceMargin - 2*border)/2;

            NSMutableParagraphStyle* paragraph = [NSMutableParagraphStyle new];
            [paragraph setAlignment: NSLeftTextAlignment];
            [paragraph setTailIndent: Margin];
            [paragraph setHeadIndent: 0.0];
            [paragraph setFirstLineHeadIndent: 0.0];

            NSDictionary* attributes = [NSDictionary dictionaryWithObject: paragraph 
                forKey: NSParagraphStyleAttributeName];

            NSMutableArray* preLeftLegends = [NSMutableArray array];
            NSMutableArray* preRightLegends = [NSMutableArray array];
            
            for (i=0; i<[_legends count]; i++)
            {
              Legend* current = [_legends objectAtIndex: i];
              [[current legend] addAttributes: attributes 
                  range: NSMakeRange (0, [[current legend] length])];
              NSSize s = [[current legend] size];

              [current setHeight: s.height];
              if ([current point].x > (imageWidth/2))
              {
                [current setRightPos]; // on range  droite
                [preRightLegends addObject: current];
              }
              else
              {
                [preLeftLegends addObject: current];
              }        
            }
                
            NSArray* LeftLegends = [preLeftLegends sortedArrayUsingSelector: @selector (compareLegends:)];
            NSArray* RightLegends = [preRightLegends sortedArrayUsingSelector: @selector (compareLegends:)];

            float LeftLegendsHeight = 0;
            float RightLegendsHeight = 0;
            
            for (i=0; i < [LeftLegends count]; i++)
            {
                LeftLegendsHeight += [[LeftLegends objectAtIndex: i] height];
            }

            for (i=0; i < [RightLegends count]; i++)
            {
                RightLegendsHeight += [[RightLegends objectAtIndex: i] height];
            }
            
            float minimalInterspace = 8;

            minimalHeight = LeftLegendsHeight+([LeftLegends count]+1)*minimalInterspace;

            if (imageHeight < minimalHeight) imageHeight = minimalHeight;
    }

    _size = NSMakeSize ([textView bounds].size.width, imageHeight);
}

- (void) drawLegends: (NSArray*) legends onRight: (BOOL) right 
    withInterspace: (float) interspace withAttributes: (NSDictionary*) attributes
    withFrame: (NSRect) cellFrame withBorder: (float) border withMargin: (float) Margin 
    withSpaceMargin: (float) spaceMargin withImageWidth: (float) imageWidth withPosImage: (float) posImage
{
      float posY = interspace;
      int i;
      for (i=0; i < [legends count]; i++)
      {
        NSRect r;
          NSPoint t, tp, p;
          Legend* current = [legends objectAtIndex: i];
          [[current legend] addAttributes: attributes 
                range: NSMakeRange (0, [[current legend] length])];
          NSSize s = [[current legend] size];
//      NSSize s = [[current legend] sizeWithAttributes: attributes];

          if (!right)
          {
            r  = NSMakeRect (cellFrame.origin.x + border + (Margin-s.width) - 2, cellFrame.origin.y + posY - 2, s.width + 4, s.height + 4);
            t  = NSMakePoint (cellFrame.origin.x + border + (Margin-s.width), cellFrame.origin.y + posY);
            tp = NSMakePoint (cellFrame.origin.x + border + Margin + 2, cellFrame.origin.y + posY + s.height/2);
          }
          else
          {
            r  = NSMakeRect (cellFrame.origin.x + border + Margin + (2*spaceMargin) + imageWidth - 2, 
                    cellFrame.origin.y + posY - 2, s.width + 4, s.height + 4);
            t  = NSMakePoint (cellFrame.origin.x + border + Margin + (2*spaceMargin) + imageWidth,
                    cellFrame.origin.y + posY);
            tp = NSMakePoint (cellFrame.origin.x + border + Margin + (2*spaceMargin) + imageWidth - 2, 
                    cellFrame.origin.y + posY + s.height/2);
          }
          
          p  = NSMakePoint (cellFrame.origin.x + border + Margin + spaceMargin + [current point].x,
              cellFrame.origin.y + [current point].y + posImage);
          
         // [[NSBezierPath bezierPathWithRect: r] stroke];
      [[NSColor colorWithCalibratedRed: 0.81 green: 0.84 blue: 0.88 alpha:1.0] set];
      NSBezierPath* path = [[NSBezierPath alloc] init];

      float radius = 8;

      NSPoint p1 = NSMakePoint (r.origin.x, r.origin.y + radius);
      NSPoint p2 = NSMakePoint (r.origin.x, r.origin.y + r.size.height - radius);
      NSPoint p3 = NSMakePoint (r.origin.x + radius, r.origin.y + r.size.height);
      NSPoint p4 = NSMakePoint (r.origin.x + r.size.width - radius, r.origin.y + r.size.height);
      NSPoint p5 = NSMakePoint (r.origin.x + r.size.width, r.origin.y + r.size.height - radius);
      NSPoint p6 = NSMakePoint (r.origin.x + r.size.width, r.origin.y + radius);
      NSPoint p7 = NSMakePoint (r.origin.x + r.size.width - radius, r.origin.y);
      NSPoint p8 = NSMakePoint (r.origin.x + radius, r.origin.y);

      NSPoint pr1 = NSMakePoint (r.origin.x + radius, r.origin.y + r.size.height - radius);
      NSPoint pr2 = NSMakePoint (r.origin.x + r.size.width - radius, r.origin.y + r.size.height - radius);
      NSPoint pr3 = NSMakePoint (r.origin.x + r.size.width - radius, r.origin.y + radius);
      NSPoint pr4 = NSMakePoint (r.origin.x + radius, r.origin.y + radius);

      [path moveToPoint: p1];
      [path lineToPoint: p2];
      //[path appendBezierPathWithArcFromPoint: p2 toPoint: p3 radius: radius];
      [path appendBezierPathWithArcWithCenter: pr1 radius: radius startAngle: 180 endAngle: 90 clockwise: YES];
      //[path moveToPoint: p3];
      [path lineToPoint: p4];
      //[path appendBezierPathWithArcFromPoint: p4 toPoint: p5 radius: radius];
      [path appendBezierPathWithArcWithCenter: pr2 radius: radius startAngle: 90 endAngle: 0 clockwise: YES];
      //[path moveToPoint: p5];
      [path lineToPoint: p6];
      //[path appendBezierPathWithArcFromPoint: p6 toPoint: p7 radius: radius];
      [path appendBezierPathWithArcWithCenter: pr3 radius: radius startAngle: 0 endAngle: 270 clockwise: YES];
      //[path moveToPoint: p7];
      [path lineToPoint: p8];
      //[path appendBezierPathWithArcFromPoint: p8 toPoint: p1 radius: radius];
      [path appendBezierPathWithArcWithCenter: pr4 radius: radius startAngle: 270 endAngle: 180 clockwise: YES];
      [path fill];
//          [[current legend] drawAtPoint: t withAttributes: attributes];            
          [[current legend] drawAtPoint: t];
        NSBezierPath* path2 = [NSBezierPath bezierPath];
          
          [path2 moveToPoint: tp];                        
        [path2 lineToPoint: p];
        [path2 stroke];          
          
          posY += s.height + interspace;          
      }
}


- (void) drawWithFrame: (NSRect) cellFrame
    inView: (NSView*) controlView
{
      if (![controlView window]) return;

      [controlView lockFocus];

      [[NSColor whiteColor] set];
      NSRectFill (cellFrame);

      //NSLog (@"drawInteriorWithFrame de FigureCell ... ");
      //NSLog (@"image : %@", _image);
      //NSLog (@"cellframe origin x : %.2f origin y : %.2f", cellFrame.origin.x, cellFrame.origin.y);
      NSLog (@"cellFrame height : %.2f", cellFrame.size.height);

      if (_legends)
      {
              
            int i;
            float interspace = 20;
            float imageWidth = [_image size].width;
            float imageHeight = [_image size].height;   
            float spaceMargin = 20;
            float border = 12;
            float Margin = (cellFrame.size.width - imageWidth - 2*spaceMargin - 2*border)/2;

            float posImage = 0;
            if (imageHeight < cellFrame.size.height)
            {
                  posImage = (cellFrame.size.height - imageHeight)/2;
            }
            NSPoint imageOrigin = NSMakePoint (cellFrame.origin.x + border + Margin + spaceMargin,
                  cellFrame.origin.y + imageHeight + posImage);
            [_image compositeToPoint: imageOrigin operation: NSCompositeSourceAtop];
            
            NSMutableParagraphStyle* paragraph = [NSMutableParagraphStyle new];
            [paragraph setAlignment: NSLeftTextAlignment];
            [paragraph setTailIndent: Margin];
            [paragraph setHeadIndent: 0.0];
            [paragraph setFirstLineHeadIndent: 0.0];
            
            NSDictionary* attributes = [NSDictionary dictionaryWithObject: paragraph 
                forKey: NSParagraphStyleAttributeName];

            NSMutableArray* preLeftLegends = [NSMutableArray array];
            NSMutableArray* preRightLegends = [NSMutableArray array];
            
            for (i=0; i<[_legends count]; i++)
            {
              Legend* current = [_legends objectAtIndex: i];
              [[current legend] addAttributes: attributes 
                  range: NSMakeRange (0, [[current legend] length])];
              NSSize s = [[current legend] size];

              [current setHeight: s.height];
              if ([current point].x > (imageWidth/2))
              {
                [current setRightPos]; // on range  droite
                [preRightLegends addObject: current];
              }
              else
              {
                [preLeftLegends addObject: current];
              }        
            }
                
            NSArray* LeftLegends = [preLeftLegends sortedArrayUsingSelector: @selector (compareLegends:)];
            NSArray* RightLegends = [preRightLegends sortedArrayUsingSelector: @selector (compareLegends:)];

            //NSLog (@"preLL : %d LL : %d", [preLeftLegends count], [LeftLegends count]);
            //NSLog (@"preRL : %d RL : %d", [preRightLegends count], [RightLegends count]);

            float LeftLegendsHeight = 0;
            float RightLegendsHeight = 0;
            
            for (i=0; i < [LeftLegends count]; i++)
            {
                LeftLegendsHeight += [[LeftLegends objectAtIndex: i] height];
            }

            for (i=0; i < [RightLegends count]; i++)
            {
                RightLegendsHeight += [[RightLegends objectAtIndex: i] height];
            }
            
            interspace = (cellFrame.size.height - LeftLegendsHeight)/ ([LeftLegends count]+1);      

            [self drawLegends: LeftLegends onRight: NO withInterspace: interspace
                withAttributes: attributes withFrame: cellFrame withBorder: border
                withMargin: Margin withSpaceMargin: spaceMargin withImageWidth: imageWidth
                withPosImage: posImage];

            interspace = (cellFrame.size.height - RightLegendsHeight)/ ([RightLegends count]+1);      
            [self drawLegends: RightLegends onRight: YES withInterspace: interspace
                withAttributes: attributes withFrame: cellFrame withBorder: border
                withMargin: Margin withSpaceMargin: spaceMargin withImageWidth: imageWidth
                withPosImage: posImage];

      }
      [controlView unlockFocus];
}

@end

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