Tweak.mm

   1 #include <substrate.h>
   2
   3 #import <Foundation/NSArray.h>
   4 #import <Foundation/NSAutoreleasePool.h>
   5 #import <Foundation/NSNull.h>
   6
   7 #import <CoreGraphics/CGGeometry.h>
   8
   9 #import <SpringBoard/SBButtonBar.h>
  10 #import <SpringBoard/SBIcon.h>
  11 #import <SpringBoard/SBIconModel.h>
  12
  13 @interface ISIconSupport : NSObject {
  14 }
  15
  16 + (ISIconSupport *) sharedInstance;
  17 - (void) addExtension:(NSString *)name;
  18
  19 @end
  20
  21 @interface SBDockIconListView : NSObject {
  22 }
  23 - (NSArray *) icons;
  24 @end
  25
  26 MSClassHook(SBButtonBar)
  27 MSClassHook(SBDockIconListView)
  28 MSClassHook(SBIcon)
  29 MSClassHook(SBIconModel)
  30
  31 MSMetaClassHook(SBDockIconListView)
  32 MSMetaClassHook(SBIconModel)
  33
  34 __attribute__((__constructor__))
  35 static void MSFixClass() {
  36     if ($SBIcon == nil)
  37         $SBIcon = objc_getClass("SBIconView");
  38 }
  39
  40 MSInstanceMessageHook1(float, SBButtonBar, leftMarginForIconRowArray, NSArray *, row) {
  41     return [row indexOfObject:[NSNull null]] == NSNotFound ? 4 : MSOldCall(row);
  42 }
  43
  44 MSInstanceMessageHook0(int, SBButtonBar, maxIconColumns) {
  45     return 5;
  46 }
  47
  48 MSClassMessageHook1(int, SBDockIconListView, iconColumnsForInterfaceOrientation, int, orientation) {
  49     return 5;
  50 }
  51
  52 static unsigned $SBButtonBar$count(SBButtonBar *self) {
  53     MSIvarHook(NSArray *, _iconMatrix);
  54     NSArray *row([_iconMatrix objectAtIndex:0]);
  55     unsigned count(0);
  56     for (id icon in row)
  57         if (icon != [NSNull null])
  58             ++count;
  59     return count;
  60 }
  61
  62 MSInstanceMessageHook0(float, SBButtonBar, topIconPadding) {
  63     return 313370 + $SBButtonBar$count(self);
  64 }
  65
  66 MSInstanceMessageHook1(void, SBIcon, setOrigin, CGPoint, origin) {
  67     unsigned count(origin.y);
  68     if (count < 313370)
  69         goto set;
  70     count -= 313370;
  71
  72     if (count > 40)
  73         origin.x = 256;
  74     else if (count > 10 || count < 0)
  75         goto set;
  76     else if (count == 5)
  77         origin.x = (origin.x - 4) / 76 * 63 + 4;
  78
  79     origin.y = 11;
  80   set:
  81     MSOldCall(origin);
  82 }
  83
  84 MSInstanceMessageHook2(CGPoint, SBButtonBar, originForIconAtX,Y, int, x, int, y) {
  85     CGPoint origin;//(MSOldCall(x, y, ));
  86     //NSLog(@"f:%u,%u=(%f,%f)", x, y, origin.x, origin.y);
  87     origin.y = 11;
  88
  89     unsigned count($SBButtonBar$count(self)), gap;
  90     unsigned space(320 - 60 * count);
  91
  92     if (count >= 4)
  93         gap = space / (count + 1);
  94     else // I hate people who love Apple.
  95         gap = 16;
  96
  97     origin.x = (space - gap * (count - 1)) / 2 + (60 + gap) * x;
  98
  99     return origin;
 100 }
 101
 102 // XXX: merge with previous function if possible, but not until after iPhone 4
 103 MSInstanceMessageHook2(CGPoint, SBDockIconListView, originForIconAtX,Y, int, x, int, y) {
 104     CGPoint origin;//(MSOldCall(x, y, ));
 105     //NSLog(@"f:%u,%u=(%f,%f)", x, y, origin.x, origin.y);
 106     origin.y = 11;
 107
 108     unsigned count([[self icons] count]), gap;
 109     unsigned space(320 - 60 * count);
 110
 111     if (count >= 4)
 112         gap = space / (count + 1);
 113     else // I hate people who love Apple.
 114         gap = 16;
 115
 116     origin.x = (space - gap * (count - 1)) / 2 + (60 + gap) * x;
 117
 118     return origin;
 119 }
 120
 121 /*MSClassMessageHook0(int, SBIconModel, maxIconListCount) {
 122     return 16;
 123 }*/
 124
 125 MSInitialize {
 126     NSAutoreleasePool *pool([[NSAutoreleasePool alloc] init]);
 127
 128     if (dlopen("/Library/MobileSubstrate/DynamicLibraries/IconSupport.dylib", RTLD_GLOBAL | RTLD_LAZY) != NULL)
 129         if (Class $ISIconSupport = objc_getClass("ISIconSupport"))
 130             [[$ISIconSupport sharedInstance] addExtension:@"com.saurik.iphone.fid"];
 131
 132     [pool release];
 133 }