ITMultilineTextFieldCell.m

   1 //
   2 //  ITMultilineTextFieldCell.m
   3 //  ITKit
   4 //
   5 //  Created by Joseph Spiros on Fri Mar 05 2004.
   6 //  Copyright (c) 2004 __MyCompanyName__. All rights reserved.
   7 //
   8
   9 #import "ITMultilineTextFieldCell.h"
  10
  11
  12 @implementation ITMultilineTextFieldCell
  13
  14 - (void)drawInteriorWithFrame:(NSRect)cellFrame inView:(NSView *)controlView
  15 {
  16     if ([[self objectValue] isKindOfClass:[NSArray class]]) {
  17
  18         /*
  19             Okay, here's the different possibilities for the objectValue of this cell, and how they're displayed:
  20
  21                 NSArray of NSStrings - Draw first line with System Font, following lines with Small System Font
  22                 NSArray of NSAttributedStrings - Draw as given
  23                 NSArray of both - Draw each line as above!
  24
  25             The number of lines is determined by the contents of the array...
  26         */
  27
  28         NSColor *defaultColor;
  29         NSMutableParagraphStyle *paragraphStyle = [[[NSParagraphStyle defaultParagraphStyle] mutableCopy] autorelease];
  30         [paragraphStyle setLineBreakMode:NSLineBreakByTruncatingTail];
  31         NSPoint cellPoint = cellFrame.origin;
  32         NSSize cellSize = cellFrame.size;
  33
  34         NSRect secondaryLineRect;
  35
  36         if ([self isHighlighted] && ([self highlightColorWithFrame:cellFrame inView:controlView]!=[NSColor secondarySelectedControlColor])) {
  37             defaultColor = [NSColor whiteColor];
  38         } else {
  39             defaultColor = [NSColor blackColor];
  40         }
  41
  42         // Process the first line...
  43         {
  44             NSDictionary *firstLineAttributes = [NSDictionary dictionaryWithObjectsAndKeys:[NSFont boldSystemFontOfSize:[NSFont systemFontSize]], NSFontAttributeName, defaultColor, NSForegroundColorAttributeName, paragraphStyle, NSParagraphStyleAttributeName, nil];
  45
  46             NSRect firstLineRect = NSMakeRect(cellPoint.x+5, cellPoint.y+1, cellSize.width-5, cellSize.height);
  47
  48             id firstString = [[self objectValue] objectAtIndex:0];
  49             NSMutableAttributedString *firstAttrString;
  50
  51             if ([firstString isKindOfClass:[NSAttributedString class]]) {
  52                 firstAttrString = [[[NSMutableAttributedString alloc] initWithAttributedString:firstString] autorelease];
  53                 [firstAttrString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0,[firstAttrString length])];
  54                 if ([defaultColor isEqual:[NSColor whiteColor]]) {
  55                 [firstAttrString addAttribute:NSForegroundColorAttributeName value:defaultColor range:NSMakeRange(0,[firstAttrString length])];
  56                 }
  57             } else if ([firstString isKindOfClass:[NSString class]]) {
  58                 firstAttrString = [[[NSMutableAttributedString alloc] initWithString:firstString attributes:firstLineAttributes] autorelease];
  59             } else {
  60                 firstAttrString = [[[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"Object (%@) is not a string", firstString] attributes:firstLineAttributes] autorelease];
  61             }
  62
  63             [controlView lockFocus];
  64
  65             [firstAttrString drawInRect:firstLineRect];
  66
  67             [controlView unlockFocus];
  68
  69             secondaryLineRect = NSMakeRect(cellPoint.x+5, (cellPoint.y+1+[firstAttrString size].height), cellSize.width-5, cellSize.height);
  70         }
  71
  72         // Process the secondary lines
  73         {
  74             NSDictionary *secondaryLineAttributes = [NSDictionary dictionaryWithObjectsAndKeys:[NSFont systemFontOfSize:[NSFont smallSystemFontSize]], NSFontAttributeName, defaultColor, NSForegroundColorAttributeName, paragraphStyle, NSParagraphStyleAttributeName, nil];
  75
  76             NSMutableArray *tMArray = [NSMutableArray arrayWithArray:[self objectValue]];
  77             [tMArray removeObjectAtIndex:0]; // Remove the first line string... already handled that above!
  78
  79             NSEnumerator *enumerator = [tMArray objectEnumerator];
  80             id secondaryString;
  81
  82             while (secondaryString = [enumerator nextObject]) {
  83
  84                 NSMutableAttributedString *secondaryAttrString;
  85
  86                 if ([secondaryString isKindOfClass:[NSAttributedString class]]) {
  87                     secondaryAttrString = [[[NSMutableAttributedString alloc] initWithAttributedString:secondaryString] autorelease];
  88                     [secondaryAttrString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0,[secondaryAttrString length])];
  89                     if ([defaultColor isEqual:[NSColor whiteColor]]) {
  90                     [secondaryAttrString addAttribute:NSForegroundColorAttributeName value:defaultColor range:NSMakeRange(0,[secondaryAttrString length])];
  91                     }
  92                 } else if ([secondaryString isKindOfClass:[NSString class]]) {
  93                     secondaryAttrString = [[[NSMutableAttributedString alloc] initWithString:secondaryString attributes:secondaryLineAttributes] autorelease];
  94                 } else {
  95                     secondaryAttrString = [[[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"Object (%@) is not a string", secondaryString] attributes:secondaryLineAttributes] autorelease];
  96                 }
  97
  98                 [controlView lockFocus];
  99
 100                 [secondaryAttrString drawInRect:secondaryLineRect];
 101
 102                 [controlView unlockFocus];
 103
 104                 secondaryLineRect.origin.y = secondaryLineRect.origin.y+[secondaryAttrString size].height; // modify the rect for the next loop, based on the size and location of the most recently processed line.
 105
 106             }
 107         }
 108     } else {
 109         [super drawInteriorWithFrame:cellFrame inView:controlView];
 110     }
 111 }
 112
 113 @end