gem install gollum redcarpet rdiscount gollum --help
git clone https://github.com/allending/Kiwi.git cd Kiwi.wiki/ gollumAlternatively
git clone https://github.com/allending/Kiwi.git gollum --page-file-dir Kiwi.wiki/ TestWiki
make sudo make install make cleanSome harmless warnings appear but ... let them be.
brew install glew
(From CoreImage Programming Guide)
(From View Programming Guide for iOS)
{0,0} to be at the top left corner, be nice and don't change everything just because of CoreImage. :)
CGAffineTransformMakeScale, CGAffineTransformTranslate, CGPointApplyAffineTransform and even CGRectApplyAffineTransform!. Thanks to Apple for making our life easier.
// Create the image and detector
CIImage* image = [CIImage imageWithCGImage:imageView.image.CGImage];
CIDetector* detector = [CIDetector detectorOfType:CIDetectorTypeFace
context:... options:...];
// CoreImage coordinate system origin is at the bottom left corner
// and UIKit is at the top left corner. So we need to translate
// features positions before drawing them to screen. In order to do
// so we make an affine transform
CGAffineTransform transform = CGAffineTransformMakeScale(1, -1);
transform = CGAffineTransformTranslate(transform,
0, -imageView.bounds.size.height);
// Get features from the image
NSArray* features = [detector featuresInImage:image];
for(CIFaceFeature* faceFeature in features) {
// Get the face rect: Convert CoreImage to UIKit coordinates
const CGRect faceRect = CGRectApplyAffineTransform(faceFeature.bounds, transform);
// create a UIView using the bounds of the face
UIView* faceView = [[UIView alloc] initWithFrame:faceRect];
...
if(faceFeature.hasLeftEyePosition) {
// Get the left eye position: Convert CoreImage to UIKit coordinates
const CGPoint leftEyePos = CGPointApplyAffineTransform(faceFeature.leftEyePosition, transform);
...
}
...
}
- (void)shakeToolbar
{
static BOOL performingAnimation = NO;
if (!performingAnimation) {
performingAnimation = YES;
// Make an image view to animate
// Probably not necessary when animation only "position"
// property, but if animating its size, transform or some
// property that will need its subviews to layout is more
// efficient to do it like this.
UIGraphicsBeginImageContext(toolbar.frame.size);
CGContextRef context = UIGraphicsGetCurrentContext();
[self.view.layer renderInContext:context];
UIImage *img = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
UIImageView *imageToAnimate;
imageToAnimate = [[UIImageView alloc] initWithImage:img];
imageToAnimate.frame = toolbar.frame;
// Replace the toolbar with the image view temporarily
[toolbar.superview addSubview:imageToAnimate];
toolbar.hidden = YES;
[imageToAnimate release];
// Build the animation
CGPoint pos = toolbar.layer.position;
CGMutablePathRef shakePath = CGPathCreateMutable();
CGPathMoveToPoint(shakePath, NULL, pos.x, pos.y);
CGPathAddLineToPoint(shakePath, NULL, pos.x - 5, pos.y);
CGPathAddLineToPoint(shakePath, NULL, pos.x + 4, pos.y);
CGPathAddLineToPoint(shakePath, NULL, pos.x - 3, pos.y);
CGPathAddLineToPoint(shakePath, NULL, pos.x + 2, pos.y);
CGPathAddLineToPoint(shakePath, NULL, pos.x - 1, pos.y);
CGPathCloseSubpath(shakePath);
const float durationOfShake = 0.5;
CAKeyframeAnimation *shakeAni;
shakeAni = [CAKeyframeAnimation animationWithKeyPath:
@"position"];
shakeAni.path = shakePath;
shakeAni.duration = durationOfShake;
CFRelease(shakePath);
// Perform the animation
[imageToAnimate.layer addAnimation:shakeAni
forKey:@"shakeAnimation"];
// Restore the toolbar to its original state when finished
// (Probably is better to do this in the delegate method ... )
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW,
durationOfShake * NSEC_PER_SEC);
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
toolbar.hidden = NO;
[imageToAnimate removeFromSuperview];
performingAnimation = NO;
});
}
}
/* customization of search box - nacho4d (css)*/
.gsc-search-box{
}
table.gsc-search-box td{
border: 0px;
}
input.gsc-input { /* This is the real search field*/
background-image:url('http://web.me.com/nacho4d/toolbar_find24.png');
background-repeat:no-repeat;
background-position:0% 50%;
border: 1px solid gray;
-webkit-border-radius: 5px ;
-moz-border-radius: 5px ;
border-radius: 5px ;
-moz-box-shadow: inset 0 5px 15px rgba(0,0,0,.15);
-webkit-box-shadow: inset 0 5px 15px rgba(0,0,0,.15);
box-shadow: inset 0 5px 15px rgba(0,0,0,.15);
font-size: 1.2em;
color: gray;
padding-left:30px;
padding-right:7px;
height: 24px;
}
input.gsc-input:focus {
-moz-box-shadow: inset 0 3px 25px rgba(0,0,0,.0);
-webkit-box-shadow: inset 0 3px 25px rgba(0,0,0,0);
box-shadow: inset 0 3px 25px rgba(0,0,0,0);
color:black;
}
input.gsc-search-button { /* this is the search button */
display:none;
}
/* end of customization of search box - nacho4d (css)*/
Remember to put this somewhere inside <style> tag :)
<!-- Start of customization of search box - nacho4d (js) -->
<script type='text/javascript'>
function fixSearchField() {
var searchFields = document.getElementsByTagName('input');
for (var i = 0; i < searchFields.length; i++) {
var searchField = searchFields[i];
if (searchField.getAttribute('class', 0) == ' gsc-input'){
// found it!
searchField.style.paddingLeft = '30px';
searchField.style.width = '120px';
searchField.setAttribute('placeholder', 'Search ...');
return;
}
}
setTimeout('fixSearchField()', 1000);
}
fixSearchField();
</script>
<!-- End of customization of search box - nacho4d (js) -->
Remember to put this somewhere after </style> :)
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{
if (scrollView.isDecelerating) {
NSLog(@" ... restarting");
} else {
NSLog(@"Scroll will begin");
}
}
- (void)scrollViewWillEndDragging:(UIScrollView *)scrollView withVelocity:(CGPoint)velocity targetContentOffset:(CGPoint *)targetContentOffset
{
NSLog(@"will end dragging: velocity: %f", velocity.y);
}
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
{
if (decelerate) {
} else {
NSLog(@"Scroll did end (Dragging)");
}
}
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{
NSLog(@"Scroll did end (Decelerating)");
}
scrollViewWillEndDragging:withVelocity:targetContentOffset: ?.
This is my little finding: If that method is **not** implement and then I ...scrollViewWillEndDragging:withVelocity:targetContentOffset: ??
??
brew install node (or brew upgrade node to upgrade current node installation) and then npm : curl http://npmjs.org/install.sh | sh.curl https://npmjs.org/install.sh | sh
sudo chown -R $USER /usr/local.
brew link node.
curl http://npmjs.org/install.sh | sh
<a class='profile-link' expr:href='data:userUrl' rel='author'><data:viewProfileMsg/></a>
<b:if cond='data:aboutme != ""'><dd class='profile-textblock'><data:aboutme/></dd></b:if> </dl> <a href='http://jp.linkedin.com/pub/guillermo-ignacio-enriquez-gutierrez/31/b53/173'><img id='linkedinImg' border='0' src='http://www.linkedin.com/img/webpromo/btn_myprofile_160x33.png'/></a> <!-- <a class='profile-link' expr:href='data:userUrl' rel='author'><data:viewProfileMsg/></a> --> </b:if>optionally, remove the border and shadow of img tag. (Put this somewhere before
]]></b:skin>)
#linkedinImg{
-webkit-box-shadow: none;
-moz-box-shadow: none;
box-shadow: none;
border: 0px;
}
#define GSEVENT_TYPE 2
#define GSEVENT_FLAGS 12
#define GSEVENTKEY_KEYCODE 15
#define GSEVENT_TYPE_KEYUP 11
NSString *const GSEventKeyUpNotification = @"GSEventKeyUpHackNotification";
- (void)sendEvent:(UIEvent *)event
{
[super sendEvent:event];
if ([event respondsToSelector:@selector(_gsEvent)]) {
// Key events come in form of UIInternalEvents.
// They contain a GSEvent object which contains
// a GSEventRecord among other things
int *eventMem;
eventMem = (int *)[event performSelector:@selector(_gsEvent)];
if (eventMem) {
// So far we got a GSEvent :)
int eventType = eventMem[GSEVENT_TYPE];
if (eventType == GSEVENT_TYPE_KEYUP) {
// Now we got a GSEventKey!
// Read flags from GSEvent
int eventFlags = eventMem[GSEVENT_FLAGS];
if (eventFlags) {
// This example post notifications only when
// pressed key has Shift, Ctrl, Cmd or Alt flags
// Read keycode from GSEventKey
int tmp = eventMem[GSEVENTKEY_KEYCODE];
UniChar *keycode = (UniChar *)&tmp;
// Post notification
NSDictionary *inf;
inf = [[NSDictionary alloc] initWithObjectsAndKeys:
[NSNumber numberWithShort:keycode[0]],
@"keycode",
[NSNumber numberWithInt:eventFlags],
@"eventFlags",
nil];
[[NSNotificationCenter defaultCenter]
postNotificationName:GSEventKeyUpNotification
object:nil
userInfo:userInfo];
}
}
}
}
}
sendEvent: method in our UIApplication subclass.typedef struct __GSEvent {
CFRuntimeBase _base;
GSEventRecord record;
} GSEvent;
typedef struct __GSEvent* GSEventRef;
typedef struct GSEventRecord {
GSEventType type; // 0x8 //2
GSEventSubType subtype; // 0xC //3
CGPoint location; // 0x10 //4
CGPoint windowLocation; // 0x18 //6
int windowContextId; // 0x20 //8
uint64_t timestamp; // 0x24, from mach_absolute_time //9
GSWindowRef window; // 0x2C //
GSEventFlags flags; // 0x30 //12
unsigned senderPID; // 0x34 //13
CFIndex infoSize; // 0x38 //14
} GSEventRecord;
typedef struct GSEventKey {
GSEvent _super;
UniChar keycode, characterIgnoringModifier, character; // 0x38, 0x3A, 0x3C
short characterSet; // 0x3E
Boolean isKeyRepeating; // 0x40
} GSEventKey;
Headers seems to be a bit old (iOS3~4) but things haven't changed so much. What is for sure is that keycode is right next to infoSize. (Isn't this the fun of private APIs?).
int *eventMem; eventMem = (int *)[event performSelector:@selector(_gsEvent)];GSEventType is at 2
// I am lazy to do the proper check here in the post :)
[super sendEvent:event];
if ([[[UIDevice currentDevice] systemVersion] intValue] == 5) {
...
}
<div class='post-footer'>
<!-- Tweeter -->
<div style='float:left;padding:4px;'>
<a class='twitter-share-button' data-count='none' data-lang='en' data-via='nacho4d' expr:data-text='data:post.title' expr:data-url='data:post.url' href='http://twitter.com/share' rel='me'/>
<b:if cond='data:post.isFirstPost'><script src='http://platform.twitter.com/widgets.js' type='text/javascript'/></b:if>
</div>
<!-- Google plus -->
<div style='float:left;padding:4px;'>
<g:plusone annotation='none' expr:href='data:post.url' size='medium'/>
</div>
<!-- LinkedIn -->
<div style='float:left;padding:4px;'>
<b:if cond='data:post.isFirstPost'><script src='http://platform.linkedin.com/in.js' type='text/javascript'/></b:if>
<script expr:data-url='data:post.url' type='in/share'/>
</div>
<!-- Facebook -->
<div style='float:left;padding:5px;'>
<a expr:share_url='data:post.url' name='fb_share' rel='nofollow' type='share'/>
<b:if cond='data:post.isFirstPost'><script src='http://static.ak.fbcdn.net/connect.php/js/FB.Share' type='text/javascript'/></b:if>
</div>
<br/>
<br/>
Any kind of comments or criticism is welcomed here :)
$ git clone git@github.com:nacho4d/BezierJS.git
NSWindow subclass with NSBorderlessWindowMask and I have to craft close/minimize/maximize buttons, handle window resizing by my own. I even have to add the autosave button by my own and I still don't get the "--Edited" or "--Locked" string right next to the versions button (NSWindowDocumentVersionsButton)+[NSDocument autosaveInPlace] which will enable versions by default//MyDocument.h
+ (BOOL)autosavesInPlace{
return YES;
}
Or override +[NSDocument preservesVersions] directly.
NSWindowDelegate methods. If you are using a subclass of NSWindowController that is a good place, if not then the NSDocument subclass should be fine :)//Bug? : In NSBorderlessWindowMask windows below method is called but has no effect!
- (NSSize)window:(NSWindow *)aWindow willResizeForVersionBrowserWithMaxPreferredSize:(NSSize)maxPreferredSize maxAllowedSize:(NSSize)maxAllowedSize{
//Create a custom size for the window entering version browser
//This is just an example of a size you might use. This is quite big
float ratio = maxPreferredSize.height/maxPreferredSize.width;
NSSize winSize = [aWindow frame].size;
winSize.height = winSize.width * ratio;
return winSize;
}
- (void)windowWillEnterVersionBrowser:(NSNotification *)notification
{
//Suggested by the docs:
//disable UI elements that will have no effect in version browser.
//Simplify the UI, as well
//Example a textView:
MyWindow *win = (MyWindow *)[notification object];
[win hideTitlebarAndStatusBar]; //method of MyWindow : simply the window
[win setUserIntaractionEnabled:YES];//method of MyWindow : disable UI
[myTextView setEditable:NO]; //disable UI
}
- (void)windowDidEnterVersionBrowser:(NSNotification *)notification
{
//If needed, do your thing here
}
- (void)windowWillExitVersionBrowser:(NSNotification *)notification
{
//If needed, do your thing here too
}
- (void)windowDidExitVersionBrowser:(NSNotification *)notification
{
//Suggested by the docs
//Set the window to its original settings
MyWindow *win = (MyWindow *)[notification object];
[win showTitlebarAndStatusBar]; //method of MyWindow : restore the window
[win setUserInteractionEnabled:YES];//method of MyWindow : restore UI
[myTextView setEditable:YES]; //restore UI
}
NSBorderLessWindowMask) doing step 1 and 2 is enough. Cocoa will coordinate buttons in the window and resized to not to work while in the version browser. NSBorderLessWindowMask windows we need to do more.-[NSDocument isInViewingMode] will return YES for all the documents in the right side of the browser. NO for the current document-[NSDocument windowForSheet] will return the windows for all these documents.- (NSWindow *)windowForSheet{
MyWindow *win = (MyWindow *)[super windowForSheet];
MyDocument *doc = (MyDocument *)[[win windowController] document];
if ([self isInViewingMode]) {
//disable UI temporarily
[win hideTitlebarAndStatusBar];
[win setUserInteractionEnabled:NO];
[doc->myTextView setEditable:NO];
}else{
[win showTitlebarAndStatusBar];
[win setUserInteractionEnabled:YES];
[doc->myTextView setEditable:YES];
}
return win;
}
-[NSDocument windowForSheet] is called in current document thread)windowControllerDidLoadNib: to avoid thread changing. :)NSDocumentRevisionsDebugMode to YES. Each window/document in the version browser is loaded in one different thread so without this flag is difficult to debug
- (void)autosaveWithImplicitCancellability:(BOOL)autosavingIsImplicitlyCancellable completionHandler:(void (^)(NSError *errorOrNil))completionHandler; - (BOOL)canAsynchronouslyWriteToURL:(NSURL *)url ofType:(NSString *)typeName forSaveOperation:(NSSaveOperationType)saveOperation; - (void)continueActivityUsingBlock:(void (^)(void))block; - (void)continueAsynchronousWorkOnMainThreadUsingBlock:(void (^)(void))block; - (NSDocument *)duplicateAndReturnError:(NSError **)outError; etc
NSWindowDelegate methods too to save/restore some info into/from the coded window.- (void)window:(NSWindow *)window willEncodeRestorableState:(NSCoder *)state
{
//any additional info to save
//Example:
[state encodeObject:myObj forKey:@"myObject"];
}
- (void)window:(NSWindow *)window didDecodeRestorableState:(NSCoder *)state
{
//any additional info to restore
//Example:
MyObject *myObj = [state decodeObjectForKey:@"myObject"];
}
NSWindow- (void)restoreStateWithCoder:(NSCoder *)coder
{
[super restoreStateWithCoder:coder];
titleBarHidden = [super decodeBoolForKey:@"titleBarHidden"];
}
- (void)encodeRestorableStateWithCoder:(NSCoder *)coder
{
[super encodeRestorableStateWithCoder:coder];
[coder encodeBool:titleBarHidden forKey:@"titleBarHidden"];
}
 Normal Cocoa NSWindowButtons |  Customized NSWindowButtons |
NSButton *button = [window standardWindowButton:NSWindowZoomButton];
button is not really of kind NSButton is in fact an instance of _NSThemeWidget. Furthermore, it does not use a normal NSButtonCell but it has its own _NSThemeWidgetCell. Furthermore, the close button is a subclass of them: _NSThemeCloseWidget and _NSThemeCloseWidget because it has a dirty state of the documentsetImage: does nothing :(_NSThemeWidgetCell but posing is being deprecated and is not possible anymore, at least not that I know.alt_drawWithFrame:inView: with the other that does the drawing as usual drawWithFrame:inView:.void drawWithFrameInView(id self, SEL _cmd, NSRect frame, id view)
{
NSLog(@"hacking drawWithFrameInView ...");
NSString *imageName = @"titlebarcontrols_regularwin";
//Get button ID
int buttonID = (int)[self buttonID];
NSLog(@"%d", buttonID);
switch (buttonID)
{
case 127: // Close button
imageName = [imageName stringByAppendingFormat:@"_close"];
break;
case 128: // Minimize button
imageName = [imageName stringByAppendingFormat:@"_minimize"];
break;
case 129: // Zoom button
imageName = [imageName stringByAppendingFormat:@"_zoom" ];
break;
case 130: // Toolbar button
imageName = [imageName stringByAppendingFormat:@"_toolbar_button" ];
break;
}
//Get System preferences: Window style: (Aqua or graphite)
NSString * const kAppleAquaColorVariant = @"AppleAquaColorVariant";
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
[userDefaults addSuiteNamed:NSGlobalDomain];
NSNumber *color = [userDefaults objectForKey:kAppleAquaColorVariant];
if ([color intValue] == 6) {//graphite is 6
imageName = [imageName stringByAppendingFormat:@"_graphite"];
}else{//defaults to aqua, (aqua is 1)
imageName = [imageName stringByAppendingFormat:@"_colorsryg"];
}
//Get button state
if ([self respondsToSelector:@selector(getState:)]) {
int state = (int)[self getState:view];
//NSLog(@"state %d", state);
switch (state) {
//Known states
//active = 0
//activenokey = not used?
//disabled = not used?
//inactive = 3
//pressed = 2
//rollover = 1
case 0:
imageName = [imageName stringByAppendingFormat:@"_active"];
break;
case 1:
imageName = [imageName stringByAppendingFormat:@"_rollover"];
break;
case 2:
imageName = [imageName stringByAppendingFormat:@"_pressed"];
break;
case 3:
imageName = [imageName stringByAppendingFormat:@"_inactive"];
break;
case 4:
break;//disabled? activenokey?
case 5:
break;//disabled? activenokey?
default:
break;
}
NSImage *img = [NSImage imageNamed:imageName];
if (img){
[img dissolveToPoint:NSMakePoint(frame.origin.x, frame.origin.y + frame.size.height) fraction:1.0];
}else{
[(NSButtonCell*)self alt_drawWithFrame:frame inView:view];//original implementation
}
}
}
@implementation TestAppDelegate
@synthesize window;
- (void)applicationWillFinishLaunching:(NSNotification *)notification
{
Class class = NSClassFromString(@"_NSThemeWidgetCell");
SEL new_selector = @selector(alt_drawWithFrame:inView:);
SEL orig_selector = @selector(drawWithFrame:inView:);
//Add a new method dinamically because _NSThemeWidgetCell is a private class
BOOL success = class_addMethod(class, new_selector,
(IMP)drawWithFrameInView,
"v@:{CGRect={CGPoint=dd}{CGSize=dd}}@");
if (success) {
//Get the methods to exchange
Method originalMethod = class_getInstanceMethod(class, orig_selector);
Method newMethod = class_getInstanceMethod(class, new_selector);
// If both are found, swizzle them
if ((originalMethod != nil) && (newMethod != nil)){
method_exchangeImplementations(originalMethod, newMethod);
}
}
//TEST:a new method should appear "alt_drawWithFrame:inView:" in the console
//uint methodCount = 0;
//class = NSClassFromString(@"UIWebDocumentView");
//Method *mlist = class_copyMethodList(class, &methodCount);
//for (int i = 0; i < methodCount; ++i){
// NSLog(@"%@", NSStringFromSelector(method_getName(mlist[i])));
//}
//TEST: "hacking drawWithFrameInView ..." should appear in the console
//NSButton *but = [window standardWindowButton:NSWindowZoomButton];
//[[but cell] drawWithFrame:NSZeroRect inView:nil];
}
References and useful Links
uint methodCount = 0;
Class class = NSClassFromString(@"UIWebDocumentView");
Method *mlist = class_copyMethodList(class, &methodCount);
for (int i = 0; i < methodCount; ++i){
NSLog(@"%@", NSStringFromSelector(method_getName(mlist[i])));
}
List up protocols conformed by a class
Class class = [UITextView class];
Protocol **p1 = class_copyProtocolList(class, NULL);
for (int i = 0; p1[i]; i++) {
printf(@"%s\n", protocol_getName(p1[i]));
}
free(p1);
List up ivars of a class
Class class = [UITextView class];
uint ivarsNum = 0;
Ivar *ivars = class_copyIvarList(class, &ivarsNum);
for (int i = 0; i < ivarsNum; i++) {
printf(@"%s\n", ivar_getName(ivars[i]));
}
Introspect arguments of a method
Class class = [UITextView class]; SEL selector = @selector(keyboardInput:shouldInsertText:isMarkedText:); Method method = class_getInstanceMethod(class, selector); char *arg = method_copyArgumentType(method, 0); printf(@"_%s_\n", arg); free(arg);
Here you will get: @ for objects, i for integers, f for floats. That is all you get.
Using GDB In Xcode set a symbolic break point to:-[UITextView keyboardInput:shouldInsertText:isMarkedText:]or in gdb type:
b -[UITextView keyboardInput:shouldInsertText:isMarkedText:]so the debugger will stop at that method. When stopped is possible to show the registers values hence is possible to inspect the arguments passed :) This is a more complete list of how to call the registers in different architectures. Since the iOS Simulator is in i386 (after prolog) I can inspect this particular method doing:
(gdb) po *(id*)($ebp + 8)
<MyTextView: 0x5911270; baseClass = UITextView; frame = (80 70; 240 323); text = 'Lorem ipsum dolor sit er ...'; clipsToBounds = YES; autoresize = RM+BM; layer = <CALayer: 0x5c0c7d0>; contentOffset: {0, 0}>
(gdb) p *(SEL*)($ebp + 12)
$1 = (SEL) 0xbd19
(gdb) po *(id*)($ebp + 16)
<UIWebDocumentView: 0xa02f000; frame = (0 0; 240 457); text = 'Lorem ipsum dolor sit er ...'; opaque = NO; userInteractionEnabled = NO; layer = <UIWebLayer: 0x5c35070>>
(gdb) po *(id*)($ebp + 20)
t
(gdb) p *(id*)($ebp + 24)
$2 = (id) 0x0
and finally to get the selector name from a SEL in gdb
(gdb) p (char*)$1 $1 = 0xbd19 "keyboardInput:shouldInsertText:isMarkedText:"
I found this super useful because now I can get the list of method of any class and dig in. Yippeee!
For example I wanted to see if I can customize some shortcuts in the iOS when using a hardware keyboard. But it turns out that the UITextView is not the one who controls that. UITextView seems to be a mere client of UIWebDocumentView which is the one who handles text input and also keyboard events. So overriding private methods of UITextView is just not enough. This is not as simple as I thought to I will save this for another post :)
LinksNSWindow has: performZoom:, performMiniaturize:, performClose:, etc. So I thought there should be something like:performFullscreen: No?
NSWindow?, at least not that I have noticed. Weird... Maybe I am not looking at the correct docs?
#import <objc/runtime.h>
unsigned int methodCount = 0;
Method *mlist = class_copyMethodList([NSWindow class], &methodCount);
for (int i = 0; i < methodCount; ++i){
NSLog(@"%@", NSStringFromSelector(method_getName(mlist[i])));
}
which will print a list of all methods implemented by NSWindow and it worked! I got the whole list. Including the private methods :)
performFullscreen: method. Later I realized that toggleFullScreen: will do the job :)
# for MacPorts $ sudo port install git-core +svn +doc +bash_completion +gitweb # for Homebrew $ brew install git-core
#required: $ git config --global user.name "firstname lastname" $ git config --global user.email nacho4d@nacho4d.comSpecially when working with github, these strings must be the same strings as the ones appearing in github Settings
#optional $ git config --global core.editor emacs $ git config --global merge.tool vimdiff $ git config --global color.ui true $ git config format.pretty oneline
/etc/gitconfig and ~/.gitconfig do:$ git config --list
$ cd My/LocalRepo/Directory/ $ git init $ git add *.m $ git add README.txt $ git commit -m 'This is the message for the first commit'
$ git clone git://github.com/schacon/grit.git
git commit only commits stagged filesadd command also is for staging not only for tracking files$ git add filename.txt $ git status
$ cat .gitignore *.[oa] #ignores .o and .a files *~ #ignores files that end in ~ build/ #ignores build directory doc/*.txt #ignores txt files inside of doc directory, is not recursive(Glob patterns are accepted)
$ git status $ git diff $ git diff --cached $ git diff --stagged
$ git commitand enter the message in the editor. Or:
$ git commit -m "message for this commit"Or: just commit everything (including not staged files)
$ git commit -a -m "message for my commit with -a option"
$ git add forgotten_file.txt $ git commit --amend # and to change the commuter date too: $ GIT_COMMITTER_DATE="`date`" git commit --amend --date "`date`"
$ rm fileToRemove.txt $ git rm fileToRemove.txtand remove a file only from the stagged are
$ git rm --cached readme.txt
# list of local branches $ git branch # list of all (local and remote) branches $ git branch -a # list of remote branches only $ git branch -rCreate a local branch named
uiFixes (from current branch). Then rename it to ui-fixes, check it out, commit something to it, publish it and finally delete it from the remote $ git branch uiFixes $ git branch -m uiFixes ui-fixes $ git branch ui-fixes $ git checkout ui-fixes $ git branch ... some changes happened here ... $ git commit -am "fixes where done" $ git push origin ui-fixes ... now others can see/use/merge,etc this branch $ git push origin :ui-fixes
v1.0 and push it to the remote. Then push all tags. v1.0 from local repository and finally delete it from the remote.-D option$ git tag v1.0 $ git push origin v1.0 $ git push --tags $ git tag -d v1.0 $ git push origin :refs/tags/v1.0
# create the new tag $ git tag new_tag old_tag # delete the old tag locally $ git tag -d old_tag # delete the old tag from the remote $ git push origin :refs/tags/old_tagChecking out a tag:
# Create a branch and checkout git checkout -b 1.6 refs/tags/v1.6 # Just checkout out the tag # (Useful when looking at it and no changes are planned to be done) $ git checkout refs/tags/v1.6
# Show last 10 commits $ git log -n 10 # Show commits with a graph $ git log --graph # Compact # git log --graph --pretty=oneline --abbrev-commit
HEAD$ git diff file.h
# stash current changes without a label
$ git stash
# stash current changes with a label
$ git stash save "Put a message here"
#
# stash only unstaged (or non-added) changes
# Note that newly created (and non-added) files will remain in
# your working directory. Also, your working directory must be
# clean (i.e. all changes need to be added) when you `git stash
# pop` later on.
$ git stash -k
$ ...
# list of all stashed things
$ git stash list
# will show something similar to:
stash@{0}: On feature/52: Put a message here
$ ...
# Apply the stash to the current branch
$ git stash apply
# Apply and remove it from the stash list
$ git stash pop
$ git stash clear
# show info about remote branches $ git remote show origin # export last commit in the current branch $ git archive -o latest.zip HEAD
# interactively rebase (change/modify) the last 4 commits: $ git rebase -i HEAD~4 # Mainly I use it for: # "squash" various commits in a single one # "reword" the message of the commit # forced push of a branch (not merging) $ git push origin feature/new-feature -f
# Make a patch of a certain commit: $ git format-patch <SHA>^..<SHA> # It will create a file, let's say: file.path. # Check the changes that are in the path: $ git apply --stat file.path # Apply the patch $ git apply file.path # or $ git am file.path
# Add (additional) remote $ git remote add --track master mleung git://github.com/mleung/feather.git # 'master' is the tracking branch and 'mleung' is the tracked branch from the given repo # verify $ git remote # get lattest changes from mleung $ git fetch mleung # merge those changes (mleung/master) into your current branch $ git merge mleung/master
# check out "develop" remote branch and then start git flow $ git fetch $ git checkout -t origin/develop $ git branch # initialize git flow $ git flow init # publish and track "develop" manually $ git push origin develop $ git branch --set-upstream develop origin/develop $ git remote show origin # feature start and finish $ git flow feature start markdown-links $ git commit -am "markdown now shows links in blue color" $ git flow finish markdown-links # hotfix start and finish $ git flow hotfix start my-hotfix $ git commit -am "I have solved a really serious bug" $ git flow hotfix finish my-hotfix
-[NSObject performSelectorOn...]やNSOperationなどがあって低レベルのブロックを普段使うまでもありませんね。#import <dispatch/dispatch.h>と書くだけでGCDのAPIが使える。
dispatch_queue_t main = dispatch_get_main_queue();
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT,0); //priories: //DISPATCH_QUEUE_PRIORITY_HIGH //DISPATCH_QUEUE_PRIORITY_DEFAULT //DISPATCH_QUEUE_PRIORITY_LOW
dispatch_queue_t queue = dispatch_queue_create("com.nacho4d.myApp.myQueue",NULL);デフォルトではプライオリティは DISPATCH_QUEUE_PRIORITY_DEFAULT だが変えることが出来る：dispatch_queue_t high = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH,NULL); dispatch_set_target_queue(queue,high);
dispatch_release(high);
dispatch_suspend(queue);
dispatch_async(queue,^{/* 非同期 */});
dispatch_sync(queue,^{/* 同期 */});
例:
dispatch_queue_t queue = dispatch_queue_create(“com.app.task”,NULL)
dispatch_queue_t main = dispatch_get_main_queue();
dispatch_async(queue,^{
CGFLoat num = [self doSomeMassiveComputation];
dispatch_async(main,^{
[self updateUIWithNumber:num];
});
});または
dispatch_queue_t queue = dispatch_queue_create(“com.app.task”,NULL);
__block CGFloat num = 0;
dispatch_sync(queue,^{
num = [self doSomeMassiveComputation];
});
[self updateUIWithNumber:num];-[NSObject performSelector:afterDelay]などのメソッドの代わりに使えるdispatch_after関数がある.利点：メソッドは不要void dispatch_after( dispatch_time_t when, dispatch_queue_t queue, dispatch_block_t block);
dispatch_after(300, dispatch_get_main_queue(), ^{
UITextView *textView = (UITextView *)[controller.view viewWithTag:12345];
[textView removeFromSuperview];
textView = nil;
});
void dispatch_apply( size_t iterations, dispatch_queue_t queue, void (^block)(size_t));例えば、CoreVideoのイメージバッファーの中から特定なチャネルだけコピーしたい場合は普段このように行うでしょう:
uint8_t *baseAddress = (uint8_t *)CVPixelBufferGetBaseAddressOfPlane(imageBuffer, 0); size_t bytesPerRow = CVPixelBufferGetBytesPerRow(imageBuffer); size_t width = CVPixelBufferGetWidth(imageBuffer); size_t height = CVPixelBufferGetHeight(imageBuffer); char *imageData = llahProcessor.inputImageDataBaseAddress; int stepWidth = width*3; //stepWith of output image
for (int j = 0; j < height; j++) {
for (int i = 0; i < width; i++) {
int out_pixIndex = j*stepWidth + i*3;
int in_pixIndex = j*bytesPerRow +i*4;
imageData[out_pixIndex] = baseAddress[in_pixIndex]; //B
imageData[out_pixIndex+1] = baseAddress[in_pixIndex+1]; //G
imageData[out_pixIndex+2] = baseAddress[in_pixIndex+2]; //R
}
}
dispatch_apply関数を用いて並列化を行うことができます:
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0);
dispatch_apply(height, queue, ^(size_t j) {
for(int i = 0; i < width; ++i ) {
int out_pixIndex = j*stepWidth + i*3;
int in_pixIndex = j*bytesPerRow +i*4;
imageData[out_pixIndex] = baseAddress[in_pixIndex]; //B
imageData[out_pixIndex+1] = baseAddress[in_pixIndex+1];//G
imageData[out_pixIndex+2] = baseAddress[in_pixIndex+2];//R
}
});
GCD並列処理を行っているので理論上では早いですが、例えば640x480の画像でforループの480個を同時に走らせとうしている！つまり実際に並列処理をするには480個のキューが必要だがそんな膨大な数のキューを作るには少し時間が掛かるしおそらく全部作れないのでエンキューされるforループのあるでしょうし 640x480の画像を処理を一瞬で終わるのでこの例は現実的ではないですえ。dispatch_apply関数の使い方だけに着目してください。マルチスレッドの話は難しくて長過ぎて教科書を読むが一番ですねdispatch_onceを使います. dispatch_onceはアプリケーションが実行している間に一回のみ実行されると保証してくれる関数で便利ですね。
+(MyClass *)singleton {
static dispatch_once_t pred;
static MyClass *shared = nil;
dispatch_once(&pred, ^{
shared = [[MyClass alloc] init];
});
return shared;
}
まぁ〜 これでGCDのことをちょっと忘れたときにちらっと見れば思い出すかと ... うむ
iPhoneにないの?!。マジ、アップルよ 一体なんだよ!? ガーベージコレックションがなぜそんなに凄いかと説明しようとするギークが沢山いるから、ここは短く言う。すばらしい理由が基本的に２つある.
一つ目、さらに他の言語のメモリのオーナーシップ（所有権）、いつリリースするベキかとかを理解する暇はないから.
二つ目、開発言語の特徴の中で 開発のプロセスを最も加速するガーベージコレックション(GC)の他に思い当たらないからだだ.
アンドロイドにはあるし、ハードウエアに直接関係しているプログラム以外（つまり、ほど全て）の場合は効率的だ。初代のiPhoneにはなかった理由が分かるかもしれないが 最近のiPhoneにない訳ないだろう。メモリ管理があまりにも大変でこれだけで初心者の開発者にiPhoneよりはアンドロイドを始めることを薦めると思うよ.
retain/releaseの仕組みは 根本的なメモリ管理とGCの中間的な仕組みだから. C++とかと違って実際にオブジェクトをfreeするわけではない.代わりに「僕は このオブジェクトを使い終えたよ！」と言ってやって あとランライムに任せばいい.deallocをオバーライドし、オーナーシップを持ったものをリリースするベキdeallocを直接呼び出すベキでないNSStringのオーナーシップを持っている？いいえ、alloc/copy/newもしなかったから持っていない.NSImageは？はい、持っている.allocしたから.NSData? これも、いいえ. alloc/copy/newどれもしなかったからだ.retainしているインスタンス変数があったら、オブジェクトがdeallocされるときにそれらのインスタンス変数をreleaseしないといけない.これを示すのは次の例:SomeObjectは二つのインスタンス変数がある. thingsとsomeOtherThingsだ. initメソッドを見て分かるのは 二つをオブジェクトを生成して、それらをインスタンス変数にアサインしていること.thingsに関しては [NSMutableArray arrayWithObjects]を使っているからretainを呼び出す必要がある. alloc/copy/newいずれもしない. autoreleaseしたオブジェクトを返すコンビニエンスメソッドを使ったから 明示的にretainをしなければいけない. autoreleaseしたオブジェクトとは何かと思っているかもしれないが それはその次に説明する. とりあえず、上記に説明したメモリ管理の基本だけを頭に入れておいてください.deallocメソッドに 生成したオブジェクトをリリースしているだけです。それ以上はなにもありません.retainまたはcopyだったら deallocにnilをセットするベキ.initメソッドなどでプローパーティを初期化(init)しているならば autoreleaseにするベキ.titleプローパーティに関して NSStringのコンビニエンスメソッドを使って生成しているからautoreleaseしたオブジェクトが返ってきて 何もする必要がありません.subtitleプローパティーに関して 私たち、自分で、オブジェクトを新しく(alloc/initを使って)生成しているのでautoreleaseをする必要があります.alloc/initを使ってretainカウントが１になり、subtitleにアサインすると一個増えるので２になってしまう. autorelease無しで行うとリテインカウントが決して１に戻らなず メモリリークが発生してしまう. だからautoreleaseを入れることで リテインカウントが１個減らしている.releaseメッセージを送られる対象オブジェクトのリストを持っている。いつ送られるかというとプールautoreleaseメッセージを送っておければ オブジェクトがちゃんとリリースされるからだ.getAnImageは何かの形でオブジェクトを生成しています。かつ、alloc/init/newで始まらないから コンビニエンスメソッドですよね？こう言ったコンビニエンスメソッドが CocoaのコンベンションによるとAutoreleasedオブジェクトを返す筈だよね？、だから コンベンションに従って書くようにしましょう. @nacho4d）
alloc/init/newで始まらないオブジェクトを生成してくれるメソッド。例:[NSArray array]はコンビニエンスメソッド、[[NSArray alloc] init]はコンビニエンスメソッドではない。ご存知の通り、コンビニエンスというのは便利の意味を持っていて、releaseしなくてもいいから便利という理由で名前持っているらしい. @nacho4d）