Notes of a Developer » Mac OS X

First video Vkontakter, mac os x client for vkontakte.ru

Vladimir Boychentsov — Sat, 22 May 2010 12:59:09 +0000

Небольшая демонстрация программы написанной мною в свободное время. Программа на данный момент не очень функциональная, но все впереди! :)

Tutorial: Drag and drop (Dad) a line, image inside an NSTableView

Vladimir Boychentsov — Sat, 22 May 2010 12:15:25 +0000

Video Tutorial working with NSTableView

Part 1

Download Video part 1

Part 2

Download Video part 2

Source

В свободное время

Vladimir Boychentsov — Sun, 02 May 2010 14:22:12 +0000

В свободное время решил поработать немного над созданием простого клиента для социальной сети “Вконтакте”. Хочу поделиться маленьким результатом. Это пока скромная версия, которая может вывести список, отправить сообщение, изменить статус и еще несколько мелочей…

Я не руководился тем нужно это или нет, просто было интересно поработать с новым API от “Вконтакте”.

Спасибо за внимания, если получится что-то хорошее, то возможно появится и для общего пользования.

P.S.: Хочу заметить, что этот проект больше для повышения опыта разработки и не поддается критике :)

Simple XML Parser based on NSXMLParser +converter

Vladimir Boychentsov — Wed, 21 Apr 2010 11:45:16 +0000

Simple XML Parser based on NSXMLParser +converter to XML file

How To Setup:
insert next code to file “name of you project”_Prefix.pch

#import "XMLNode.h"
#import "XMLParser.h"
#import "XMLConvert.h"

Create and launching XMLParser.
You will get parsed data ( with XMLNode data type ) in callbackParser: method

NSURL *URLToFile = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"source" ofType:@"xml"]];
XMLParser *parser = [[XMLParser alloc] init];
[parser setDelegate:self withAction:@selector(callbackParser:)];
[parser parseXMLFile:URLToFile];
[parser release];

Converting results of parsing to XML file:

NSString *content = [XMLConvert convertXMLNode:root];

And additional define methods for working with XMLNode’s:
XMLaddAttribute(node, object, key), XMLgetAttribute(node, key), XMLsetParent(node, parent), XMLaddChild(parent, child), XMLgetChild(parent, child), XMLremoveChild(parent, child), XMLgetChildWithAttribute(parent, childname, object, key)

Source
Good luck!

Tutorial: Drag and Drop file on NSImageView

Vladimir Boychentsov — Fri, 26 Feb 2010 19:44:07 +0000

Step by step for starter developers…

1. Create a project in xCode with name “DragAndDrop” or any else…2. Add an element “NSImageView” on main view in the MainMenu.xib

3. Add files NSCImageView.m/NSCImageView.h to project with subclass of UIView

4. Replace “NSImageView” name class on “NSCImageView” in the NSImageView objec

5. Change subclass “NSView” to “NSImageView”

6. Remove all methods from *.m file

7. Methods for getting entering and exit of dragging

8. Method for checking information of dragging result

Source of NSCImageView.m

Note: If you make drag and drop with NSView and any other object, you will need add this code:

[self registerForDraggedTypes:[NSArray arrayWithObjects:NSTIFFPboardType,
NSFilenamesPboardType, nil]];

Result:

How to launch AppStore application with request?

Vladimir Boychentsov — Tue, 02 Feb 2010 14:47:56 +0000

If you will need launch AppStore application with search request – use this example

NSString *str = @"itms-apps://ax.search.itunes.apple.com";
str = [NSString stringWithFormat:@"%@/WebObjects/MZSearch.woa/wa/search?media=software&term=", str];
str = [NSString stringWithFormat:@"%@3d4medical", str];
[[UIApplication sharedApplication] openURL: [NSURL URLWithString:str]];

for getting reviews screen of application, you can will use this example:

NSString *str = @"itms-apps://ax.itunes.apple.com/WebObjects/MZStore.woa";
str = [NSString stringWithFormat:@"%@/wa/viewContentsUserReviews?", str];
str = [NSString stringWithFormat:@"%@type=Purple+Software&id=", str];
// Here is the app id from itunesconnect
str = [NSString stringWithFormat:@"%@325180061", str];
[[UIApplication sharedApplication] openURL: [NSURL URLWithString:str]];

for getting screen of application:

NSString *str = @"itms-apps://ax.itunes.apple.com/WebObjects/MZStore.woa";
str = [NSString stringWithFormat:@"%@/wa/viewSoftware?id=", str];
// Here is the app id from itunesconnect
str = [NSString stringWithFormat:@"%@325180061", str];
[[UIApplication sharedApplication] openURL: [NSURL URLWithString:str]];

Resize and Mask an Image

Vladimir Boychentsov — Sat, 26 Dec 2009 19:37:12 +0000

Make image with a mask!

Source:

- (UIImage*) maskImage:(UIImage *)image {
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
UIImage *maskImage = [UIImage imageNamed:@"mask.png"];
CGImageRef maskImageRef = [maskImage CGImage];
// create a bitmap graphics context the size of the image
CGContextRef mainViewContentContext = CGBitmapContextCreate (NULL, maskImage.size.width, maskImage.size.height, 8, 0, colorSpace, kCGImageAlphaPremultipliedLast);
if (mainViewContentContext==NULL)
return NULL;
CGFloat ratio = 0;
ratio = maskImage.size.width/ image.size.width;
if(ratio * image.size.height < maskImage.size.height) {
ratio = maskImage.size.height/ image.size.height;
}
CGRect rect1 = {{0, 0}, {maskImage.size.width, maskImage.size.height}};
CGRect rect2 = {{-((image.size.width*ratio)-maskImage.size.width)/2 , -((image.size.height*ratio)-maskImage.size.height)/2}, {image.size.width*ratio, image.size.height*ratio}};
CGContextClipToMask(mainViewContentContext, rect1, maskImageRef);
CGContextDrawImage(mainViewContentContext, rect2, image.CGImage);
// Create CGImageRef of the main view bitmap content, and then
// release that bitmap context
CGImageRef newImage = CGBitmapContextCreateImage(mainViewContentContext);
CGContextRelease(mainViewContentContext);
UIImage *theImage = [UIImage imageWithCGImage:newImage];
CGImageRelease(newImage);
// return the image
return theImage;
}

Download Sources of Project

Mask:

Default image:

Setup Python, MySQL, MySQL-python and SVN on MAC OS X 10.6

Vladimir Boychentsov — Sun, 11 Oct 2009 12:58:03 +0000

Mac Os X + Python 2.6.1+ PIL + apache2.2 +mod_python + MySQL + MySQLdb +php5+ phpMyAdmin + SVN server +WebSVN

OS: Mac OS X 10.6.1 Snow Leopard
XCode:The latest Xcode Tools
Python: Python 2.6.1 64-bit (Snow Leopard default)

Projects will be located in ~/Sites, so change permissions:
add read permission for everyone on ~/Sites

Setup django

1. mkdir ~/sources
2. cd ~/sources
3. svn co http://code.djangoproject.com/svn/django/trunk/ django
4. cd django
5. sudo python setup.py install

Apache:
We will use default 10.6 apache2.2

Setup mod_python:
1. mkdir ~/sources/mod_python
2. cd ~/sources/mod_python
3. svn co http://svn.apache.org/repos/asf/quetzalcoatl/mod_python/trunk mod_python-trunk
4. cd mod_python-trunk
5. ./configure –with-apxs=/usr/sbin/apxs
6. make
7. sudo make install

Setup MySQL — Download 64bit!!!
1. nano ~/.profile
2. export PATH=”/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin:$PATH”
3. source ~/.profile
4. Download MySQL 5.1.39 sourcse and place it into ~/sources
5. tar xzvf mysql-5.1.39.tar.gz
6. cd mysql-5.1.39

7. ./configure –prefix=/usr/local/mysql –with-extra-charsets=complex \
–enable-thread-safe-client –enable-local-infile –enable-shared \
–with-plugins=innobase
8. make
9. sudo make install
10. cd /usr/local/mysql
11. sudo ./bin/mysql_install_db –user=mysql
12. sudo chown -R mysql ./var
13. cd ..
14. open TexEdit, switch to plain text
copy-paste:

="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
="1.0">
KeepAlive</key>
/>
Label</key>
com.mysql.mysqld</string>
Program</key>
/usr/local/mysql/bin/mysqld_safe</string>
RunAtLoad</key>
/>
UserName</key>
mysql</string>
WorkingDirectory</key>
/usr/local/mysql</string>
</dict>
</plist>

save as ~/sources/com.mysql.mysqld.plist
close TexEdit

15. sudo mv ~/sources/com.mysql.mysqld.plist /Library/LaunchDaemons
16. sudo chown root /Library/LaunchDaemons/com.mysql.mysqld.plist
17. sudo launchctl load -w /Library/LaunchDaemons/com.mysql.mysqld.plist
18. mysqladmin -u root password NEW_PASSWORD

Setup MySQL for Python adapter

1. Download the latest MySQL for Python adapter from SourceForge(http://sourceforge.net/project/showfiles.php?group_id=22307) and copy to ~/sources
2. cd ~/sources
3. tar xzvf MySQL-python-1.2.2.tar.gz
4. cd ./MySQL-python-1.2.2
5. Inside the folder, clean the package by typing
6. sudo python setup.py clean
7. In the same folder, edit _mysql.c using your favourite text-editor
8. Remove the following lines (37-39):

#ifndef uint
#define uint unsigned int
#endif
Change the following:
uint port = MYSQL_PORT;
uint client_flag = 0;
to
unsigned int port = MYSQL_PORT;
unsigned int client_flag = 0;

9. Create a symbolic link under lib to point to a sub-directory called mysql. This is where it looks for during compilation.
10.sudo ln -s /usr/local/mysql/lib /usr/local/mysql/lib/mysql
11. Edit the setup_posix.py and change the following
mysql_config.path = “mysql_config”
to
mysql_config.path = “/usr/local/mysql/bin/mysql_config”
12.In the same directory, rebuild your package (ignore the warnings that comes with it)

13. sudo python setup.py build

Install the package and you are done.

14. sudo python setup.py install

Test if it’s working. It works if you can import MySQLdb.

python
>>> import MySQLdb

SVN
We will be using build in svn + WebSvn for repo browsing
1. mkdir ~/svn
2 cd ~
3.chown -R _www svn
4. svnadmin create –fs-type fsfs myrepo-1
5. donwload latest WebSVN
6. Unpack in into ~/Sites
7. rename to websvn
8. chmod 0700 ~/Sites/websvn/cache
9. rename ~/Sites/websvn/include/distconfig.php to ~/Sites/websvn/include/config.php
10. edit ~/Sites/websvn/include/config.php:
find and uncomment
$config->useTreeIndex(true); // Tree index, open by default
$config->addInlineMimeType(”text/plain”);
$config->hideRSS();
$config->parentPath(’path/to/yours/svn’);

Starting project
1. cd ~/Sites
2. mkdir Temp
3. chmod 0700 ~/Sites/Temp
4. django-admin.py start project my_project
5. nano apache_settings.py
6. add lines:

import os
os.environ['PYTHON_EGG_CACHE'] = '/Users/you_user_name/Sites/Temp'
close apache_settings.py

Configure Apache:
sudo nano /etc/apache2/httpd.conf
Add lines:
LoadModule python_module libexec/apache2/mod_python.so
LoadModule php5_module libexec/apache2/libphp5.so #for WebSvn and phpMyAdmin
Uncomment:
Include /private/etc/apache2/extra/httpd-vhosts.conf
Add line:
PythonImport /Users/you_user_name/Sites/my_project/apache_settings.py my_project
save and exit httpd.conf

Configure VirtualHosts:
sudo nano /etc/apache2/extra/httpd-vhosts.conf
remove all lines
add

NameVirtualHost *:80
<VirtualHost *:80>
ServerName "you_server_name"
DocumentRoot "/Users/pyromann/Sites/my_project"
ErrorLog "/private/var/log/apache2/my_project-error_log"
CustomLog "/private/var/log/apache2/my_project-access_log" common
<Directory "/Users/pyromann/Sites/my_project">
Options FollowSymLinks MultiViews Includes
AllowOverride All
Order allow,deny
Allow from all
Directory>
<Location "/">
SetHandler python-program
SetEnv DJANGO_SETTINGS_MODULE my_project.settings
PythonHandler django.core.handlers.modpython
PythonPath "sys.path + ['/Users/your_user_name/Sites/']"
PythonOption django.root /my_project
PythonDebug On
PythonInterpreter my_project
Location>
<Location "/media">
SetHandler None
Location>
<LocationMatch ".(jpg|gif|png)$">
SetHandler None
LocationMatch>
VirtualHost>
<VirtualHost *:80>
ServerName "mysqladmin.loc"
ServerAlias "www.mysqladmin.loc"
DocumentRoot "/Users/your_user_name/Sites/mysqladmin"
VirtualHost>
<VirtualHost *:80>
ServerName "svn.loc"
ServerAlias "www.svn.loc"
DocumentRoot "/Users/your_user_name/Sites/websvn"
VirtualHost>

Setup hosts
sudo nano /etc/hosts
add line:
127.0.0.1 your_server_name svn.loc mysqladmin.loc

restart apache
sudo apachectl restart
http://svn.loc – yours svn
http://mysqladmin.loc – phpMyAdmin
http://your_server_name – yours django project

setup PIL
Download lates sources
Place it to ~/sources
tar xzfv Imaging-1.1.6.tar
cd Imaging-1.1.6
python setup.py build
sudo python setup.py install

Source:

How to setup django development environment in Mac OS X 10.6 Snow Leopard

WWDC & Mac OS X Snow Leopard

Vladimir Boychentsov — Mon, 08 Jun 2009 16:26:03 +0000

Mac OS X Snow Leopard 64 bit!!!!

COOL!