##  ROOT  ##############################

  * install ROOT with cocoa
  +--------------------------------------------------------------+
  | $ git clone http://root.cern.ch/git/root.git /usr/local/ROOT |
  | $ cd /usr/local/ROOT                                         |
  | $ ./configure --prefix=/usr/local --enable-cocoa --all       |
  | $ make && make install                                       |
  +--------------------------------------------------------------+
    modify ROOT/graf2d/cocoa/src/MenuLoader.mm  for %W Close  
    +--------------------------------------------------------------------------------------+
    | NSMenuItem *menuItem = [aMenu addItemWithTitle : NSLocalizedString(@"Minimize", nil) |
    |                         action : @selector(performMinimize:) keyEquivalent : @"m"];  |
    | menuItem = [aMenu addItemWithTitle : NSLocalizedString(@"Zoom", nil)                 |
    |             action : @selector(performZoom:) keyEquivalent : @""];                   |
    |^menuItem = [aMenu addItemWithTitle : NSLocalizedString(@"Close", nil)^               |
    |  ^action : @selector(windowShouldClose:) keyEquivalent : @"w"];^                     |
    | [aMenu addItem : [NSMenuItem separatorItem]];                                        |
    | menuItem = [aMenu addItemWithTitle : NSLocalizedString(@"Bring All to Front", nil)   |
    |             action : @selector(arrangeInFront:) keyEquivalent : @""];                |
    +--------------------------------------------------------------------------------------+

  * change default setting

    make ~/.rootrc and ~/.rootmacros/rootlogon.C

    .rootrc
    +---------------------------------------------------+
    | Unix.*.Root.MacroPath: .:~/.rootmacros:@macrodir@ |
    +---------------------------------------------------+

    rootlogon.C
    +-------------+
    | {           |
    |   <setting> |
    | }           |
    +-------------+


  * install ROOT with cocoa by homebrew

    in order to use %W shortcut and change icon, modify /usr/local/Library/Formula/root.rb
    +---------------------------------------------------------------------------------------------------+
    | ^system 'vim -u NONE -N -c "call search(\"performZoom\")" -c "normal omenuItem = ^\               |
    | ^[aMenu addItemWithTitle : NSLocalizedString(@\"Close\", nil)" -c "normal oaction :^\             |
    | ^@selector(windowShouldClose:) keyEquivalent : @\"w\"];" -c "wq" graf2d/cocoa/src/MenuLoader.mm'^ |
    | ^system 'vim -u NONE -N -c "%s/iconDirectoryPath,/\"\$(HOME)\/Downloads\/GoogleDrive\/icon\","^ \ |
    | ^-c "wq" graf2d/cocoa/src/TGCocoa.mm'^                                                            |
    |  system "./configure",                                                                            |
    +---------------------------------------------------------------------------------------------------+
  +----------------------------------+
  | $ brew tap homebrew/science      |
  | $ brew install --with-cocoa root |
  +----------------------------------+
    % change ROOT icon directly
    +-------------------------------------------+
    | $ cd /usr/local/Cellar/root/<version>/bin |
    | $ sudo chmod 777 root.exe                 |
    +-------------------------------------------+
      change icon from "情報を見る"
    +---------------------------+
    | $ sudo chmod 555 root.exe |
    +---------------------------+

  * upgrade error on homebrew

    check https://github.com/Homebrew/homebrew-science/issues/1219

    +--------------------------------------------------------------------------+
    | ==> make                                                                 |
    | 2 errors generated.                                                      |
    | 2 errors generated.                                                      |
    | make: *** [math/vc/src/avx_sorthelper.cpp.o] Error 1                     |
    | 2 errors generated.                                                      |
    | 2 errors generated.                                                      |
    | /usr/local/Library/Homebrew/debrew.rb:10:in `raise'                      |
    | BuildError: Failed executing: make                                       |
    | 1. raise                                                                 |
    | 2. ignore                                                                |
    | 3. backtrace                                                             |
    | 4. irb                                                                   |
    | 5. shell                                                                 |
    | Choose an action:                                                        |
    | Choose 5 to open a shell.                                                |
    |                                                                          |
    | You will be in the build directory now.                                  |
    | Run make to continue the compilation.                                    |
    |                                                                          |
    | The compilation will successfully finish this time.                      |
    | Exit the shell (don't run make install).                                 |
    |                                                                          |
    | In the menu, choose 2.                                                   |
    | This will continue the brew install process and ROOT will get installed. |
    +--------------------------------------------------------------------------+


  * change print size

    gStyle->SetPaperSize(100,100)
      for *.pdf this does not work ?


  * change X range of TGrap

    g->GetXaxis()->SetLimits();


  * TText TLatex

    TText  *t = new TText(<x in hist> , <y in hist>, "text");
    TLatex *t = new TLatex(<x in hist>, <y in hist>, "latex text");

    t->Draw();

    t->DrawText(<x>, <y>, "text");

    NOTE : set position in pad coordinate (0 -- 1)
    t->SetNDC(1);

    or

    t->DrawTextNDC(<x>, <y>, "text");

    % latex text exsample
      - x^{2}
      - {}^{40}_{20}Ca
      - #Lambda


  * change TStyle for some part
   +---------------------+
   | <Canvas>->Update(); |
   | gStyle-><function>  |
   | <obj>->Draw();      |
   | <Canvas>->Update(); |
   | gStyle-><function>  |
   +---------------------+

    NOTE : TCanvas::Update is trigger to adapt TStyle


  * set file name for output in macro

    string str = f->GetName();
    string file = str.substr(0,str.find('.',0));
    c->Print(Form("print/%s_***.pdf",file.c_str()));