Plugins/Emoticons/AIEmoticonPackPreviewView.m

   1 /*
   2  * Adium is the legal property of its developers, whose names are listed in the copyright file included
   3  * with this source distribution.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it under the terms of the GNU
   6  * General Public License as published by the Free Software Foundation; either version 2 of the License,
   7  * or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
  10  * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
  11  * Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along with this program; if not,
  14  * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  15  */
  16
  17 #import "AIEmoticonPack.h"
  18 #import "AIEmoticonPackPreviewView.h"
  19 #import <AIUtilities/AIParagraphStyleAdditions.h>
  20 #import <Adium/AIEmoticon.h>
  21
  22 //Max size + bottom margin should equal previewView's height
  23 #define EMOTICON_MAX_SIZE           20
  24 #define EMOTICON_SPACING            4
  25
  26 #define EMOTICON_LEFT_MARGIN        2           //Left padding of cell
  27 #define EMOTICON_BOTTOM_MARGIN      2
  28
  29 static  float   distanceBetweenEmoticons = 0;
  30
  31 @implementation AIEmoticonPackPreviewView
  32
  33 - (void)setEmoticonPack:(AIEmoticonPack *)inEmoticonPack
  34 {
  35         emoticonPack = [inEmoticonPack retain];
  36 }
  37
  38 - (void)dealloc
  39 {
  40         [emoticonPack release];
  41
  42         [super dealloc];
  43 }
  44
  45 - (void)drawRect:(NSRect)rect
  46 {
  47         NSRect  cellFrame = [view_preview frame];
  48         NSRect  nameFrame = [view_name frame];
  49
  50         [super drawRect:rect];
  51
  52         if (NSIntersectsRect(rect,nameFrame)) {
  53                 //Display the title, truncating as necessary
  54                 NSMutableParagraphStyle *paragraphStyle = [NSMutableParagraphStyle styleWithAlignment:NSLeftTextAlignment
  55                                                                                                                                                                 lineBreakMode:NSLineBreakByTruncatingTail];
  56                 [paragraphStyle setMaximumLineHeight:nameFrame.size.height];
  57
  58                 [[emoticonPack name] drawInRect:nameFrame
  59                                                  withAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
  60                                                          paragraphStyle, NSParagraphStyleAttributeName,
  61                                                          [NSFont systemFontOfSize:12], NSFontAttributeName/*,
  62                                                          SELECTED_TEXT_COLOR, NSForegroundColorAttributeName*/, nil]];
  63         }
  64
  65         if (NSIntersectsRect(rect,cellFrame)) {
  66                 NSEnumerator    *enumerator;
  67                 AIEmoticon      *emoticon;
  68                 float                   x = 0;
  69
  70                 //Display a few preview emoticons
  71                 enumerator = [[emoticonPack emoticons] objectEnumerator];
  72                 while ((x < cellFrame.size.width) && (emoticon = [enumerator nextObject])) {
  73                         NSImage *image = [emoticon image];
  74                         NSSize  imageSize = [image size];
  75                         NSRect  destRect;
  76
  77                         //Scale the emoticon, preserving its proportions.
  78                         if (imageSize.width > EMOTICON_MAX_SIZE) {
  79                                 destRect.size.width = EMOTICON_MAX_SIZE;
  80                                 destRect.size.height = imageSize.height * (EMOTICON_MAX_SIZE / imageSize.width);
  81                         } else if (imageSize.height > EMOTICON_MAX_SIZE) {
  82                                 destRect.size.width = imageSize.width * (EMOTICON_MAX_SIZE / imageSize.height);
  83                                 destRect.size.height = EMOTICON_MAX_SIZE;
  84                         } else {
  85                                 destRect.size.width = imageSize.width;
  86                                 destRect.size.height = imageSize.height;
  87                         }
  88
  89                         //Position it
  90                         destRect.origin.x = cellFrame.origin.x + x;
  91                         destRect.origin.y = cellFrame.origin.y + EMOTICON_BOTTOM_MARGIN;
  92
  93                         //If there is enough room, draw the image
  94                         if ((destRect.origin.x + destRect.size.width) < (cellFrame.origin.x + cellFrame.size.width)) {
  95                                 [image drawInRect:destRect
  96                                                  fromRect:NSMakeRect(0, 0, imageSize.width, imageSize.height)
  97                                                 operation:NSCompositeSourceOver
  98                                                  fraction:1.0];
  99                         }
 100
 101                         //Move over for the next emoticon, leaving some space
 102                         float desiredIncrease = destRect.size.width + EMOTICON_SPACING;
 103                         if (distanceBetweenEmoticons < desiredIncrease)
 104                                 distanceBetweenEmoticons = desiredIncrease;
 105                         x += distanceBetweenEmoticons;
 106                 }
 107         }
 108 }
 109
 110 @end