Re: Tasks

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Il giorno 20/feb/04, alle 13:27, Matthew Schinckel ha scritto:

> There are no stupid questions, only stupid answers...
>
> I've spent the last couple of hours looking for info about the MacOS 
> interface(s).  Here is my summary:
>
> There is already a group of (apple supplied?) shared libraries that 
> provide a Carbon interface.  This is on standard python OSX install. 
> (?)
> I'm not sure if there is a similar thing for Cocoa.
> I'm still learning the difference ;)
> [edit]Cocoa might be better, since Carbon is partly a legacy thing, 
> but Carbon apps might run in OS9.  Care?[/edit]
> I need to source the Learning Carbon and/or Learning Cocoa books from 
> O'Reilly, since I can't stay connected to the internet to look at 
> Apple's docs all day and night.

If you install XCode CD you've got all the apple documentation and some 
tutorial for Cocoa's beginners ( ithink that thare are also Carbon 
tutorials but i've never studied Carbon). I have two books about Cocoa 
:

Learning Cocoa With Objective-C from O'Reilly
Cocoa Programming from Sams.

The first is an introduction for beginners, it is a good book really 
easy that explains lot of concepts but if you don't have any problem 
with studing on screen you can read the same information into the 
/Developer/Documentation directory.
The second is a reference, it is really good because it have a lot of 
triks and useful suggestion.

> Someone has created a Python thingo for Xcode, Apple's Development 
> Environment.  This might allow for direct creation of MacOS X apps in 
> python! (Sorry, i got excited about that bit!)

With pyobjc you have some scripts that create OS X app.

> PyObjC exists also.   (Allows use of Objective-C [MacOS X standard 
> language] bits in python)

Probably this is the best choice. If you learn Cocoa with ObjC 
translate the code into Python is very easy and your scripts looks like 
a native application. As you noticed with Cocoa we loose os9 support 
but i also Apple doesn't support it.

> Apple have included stuff for Quartz access, which allows for graphics 
> handling, but, IIUC (if I understand correctly) not for UI stuff.

You don't have to use Quarts directly for GUI. Cocoa (or Quartz) hides 
it and helps you a lot with GUI.

> [OT]Running limewire causes safari to fail on dns lookups.[/OT]
> pythonmac.wiki.org has some good information...
>

The best resource for Cocoa is Cocoa-dev ML, look at Apple Developer 
site.

I've done some experiment with cocoa application without nibs. Building 
Cocoa Application 
(http://www.oreilly.com/catalog/buildcocoa/index.html?CMP=IL7015) 
explains how to create an app only with code (without IB). i've 
downloaded chapter's examples and translate them. I hope that they can 
be a useful resource.

Fabio "Wezzy" Trezzi


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/* Tiny2.m
 *
 * A tiny Cocoa application which creates a 
 * a window and displays graphics in it.
 * 
 * (C) 2002 by Simson L. Garfinkel and Michael K. Mahoney.
 * all rights reserved.
 */

#import <Cocoa/Cocoa.h>

/****************************************************************
 ** The CView draws the image.
 ****************************************************************/

@interface CView : NSView
{
}
- (void)drawRect:(NSRect)rect;
- (void)mouseDown:(NSEvent *)theEvent;
- (void)windowWillClose:(NSNotification *)notification;
@end

@implementation CView

- (void)drawRect:(NSRect)rect
{
    /* Clear the background */

    [[NSColor whiteColor] set];
    NSRectFill([self bounds]);
}

-(void)windowWillClose:(NSNotification *)notification
{
    [NSApp terminate:self];
}

- (void)mouseDown:(NSEvent *)theEvent
{
    NSRect r;

    r.origin = [theEvent locationInWindow];
    r.origin.x -= 5;
    r.origin.y -= 5;
    r.size.width = 10;
    r.size.height = 10;

    [[NSColor blackColor] set];
    [self lockFocus];
    [NSBezierPath fillRect:r];
    [self unlockFocus];
    [[self window] flushWindow];

}

@end

void setup()
{
    NSWindow *myWindow;
    NSView   *theView;
    NSRect   graphicsRect;

    /* Now create the window */

    graphicsRect = NSMakeRect(100.0, 350.0, 400.0, 400.0);
    myWindow = [ [NSWindow alloc] 
	       initWithContentRect: graphicsRect
	       styleMask:   NSTitledWindowMask
	                    |NSClosableWindowMask
	                    |NSMiniaturizableWindowMask 
	       backing:     NSBackingStoreBuffered
	       defer:       NO];

    [myWindow setTitle:@"Tiny Application Window"];

    /* Create the CView for the Window.  */
    theView = [ [CView alloc] init];
    [myWindow setContentView:theView ];
    [myWindow setDelegate:theView ];
    [myWindow makeKeyAndOrderFront: nil];
}    

int main()
{
    /* Create the autorelease pool           */
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

    /* Create the application object.        */
    NSApp = [[NSApplication alloc] init];

    setup();

    /* run the main event loop */
    [NSApp run];							

    /* We get here when the user closes the window. */

    [NSApp release];				  /* free the app */
    [pool release];				  /* release the autorelease pool */
    return(EXIT_SUCCESS);
}

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# Tiny2.m
#
# A tiny Cocoa application which creates a 
# a window and displays graphics in it.
 
# (C) 2002 by Simson L. Garfinkel and Michael K. Mahoney.
# all rights reserved.

#Traslated to Python by Fabio "Wezzy" Trezzi

from AppKit import *
import sys
global myWindow
global app

class CView(NSView):
    "Main View"

    def drawRect_(self,rect):
        "Clear the background"
        NSColor.whiteColor().set()
        NSRectFill(super(CView,self).bounds())

    def windowWillClose_(self,notification):
        "Exit Program"
        #sys.exit("You have closed the main window")
        global app
        app.terminate_(self)
    def mouseDown_(self,theEvent):
        "Draw"
        r_origin = theEvent.locationInWindow()
        r = ((r_origin[0]-5,r_origin[1]-5),(10,10))
        NSColor.blackColor().set()
        self.lockFocus()
        NSBezierPath.fillRect_(r)
        self.unlockFocus()
        myWindow.flushWindow()

def setup():
    "Now create the window"

    global myWindow
    
    graphicsRect = ((100,350),(400,400))
    myWindow = NSWindow.alloc().initWithContentRect_styleMask_backing_defer_(graphicsRect,(NSTitledWindowMask | NSClosableWindowMask | NSMiniaturizableWindowMask),NSBackingStoreBuffered,0)

    myWindow.setTitle_("Tiny Application Window")

    #Create the CView for the Window
    theView = CView.alloc().init()
    myWindow.setContentView_(theView)
    myWindow.setDelegate_(theView)
    #myWindow.makeKeyAndOrderFront_(None)

if(__name__ == "__main__"):
    global myWindow
    global app
    app = NSApplication.sharedApplication()
    setup()
    app.runModalForWindow_(myWindow)

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