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