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<pre class="sourcecodebox">/*
* File: main.c of TabsShowcase
*
* Contains: A skeleton of modern nib-based and Carbon Events-based Carbon application.
*
* Note: The project is set up so that the DEBUG macro is set to one when the "Development"
* build style is chosen and not at all when the "Deployment" build style is chosen.
* Thus, all the require asserts "fire" only in "Development".
*
* Version: 1.0
*
* Created: 8/24/05
*
* Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
* ("Apple") in consideration of your agreement to the following terms, and your
* use, installation, modification or redistribution of this Apple software
* constitutes acceptance of these terms. If you do not agree with these terms,
* please do not use, install, modify or redistribute this Apple software.
*
* In consideration of your agreement to abide by the following terms, and subject
* to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
* copyrights in this original Apple software (the "Apple Software"), to use,
* reproduce, modify and redistribute the Apple Software, with or without
* modifications, in source and/or binary forms; provided that if you redistribute
* the Apple Software in its entirety and without modifications, you must retain
* this notice and the following text and disclaimers in all such redistributions of
* the Apple Software. Neither the name, trademarks, service marks or logos of
* Apple Computer, Inc. may be used to endorse or promote products derived from the
* Apple Software without specific prior written permission from Apple. Except as
* expressly stated in this notice, no other rights or licenses, express or implied,
* are granted by Apple herein, including but not limited to any patent rights that
* may be infringed by your derivative works or by other works in which the Apple
* Software may be incorporated.
*
* The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
* WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
* WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
* COMBINATION WITH YOUR PRODUCTS.
*
* IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
* OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
* (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Copyright: Copyright © 2005 Apple Computer, Inc, All Rights Reserved
*/
//****************************************************
#pragma mark * compilation directives *
//****************************************************
#pragma mark -
#pragma mark * includes & imports *
#include <Carbon/Carbon.h>
#include "TabsShowcase.h"
//****************************************************
#pragma mark -
#pragma mark * typedef's, struct's, enums, defines, etc. *
//****************************************************
#pragma mark -
#pragma mark * local (static) function prototypes *
static pascal OSErr Handle_OpenApplication(const AppleEvent *inAppleEvent, AppleEvent *outAppleEvent, long inHandlerRefcon);
static pascal OSErr Handle_ReopenApplication(const AppleEvent *inAppleEvent, AppleEvent *outAppleEvent, long inHandlerRefcon);
static pascal OSErr Handle_OpenDocuments(const AppleEvent *inAppleEvent, AppleEvent *outAppleEvent, long inHandlerRefcon);
static pascal OSErr Handle_PrintDocuments(const AppleEvent *inAppleEvent, AppleEvent *outAppleEvent, long inHandlerRefcon);
static void Install_AppleEventHandlers(void);
static pascal OSStatus Handle_CommandUpdateStatus(EventHandlerCallRef inHandlerCallRef, EventRef inEvent, void *inUserData);
static pascal OSStatus Handle_CommandProcess(EventHandlerCallRef inHandlerCallRef, EventRef inEvent, void *inUserData);
static void Do_Preferences(void);
static OSStatus Do_CleanUp(void);
//****************************************************
#pragma mark -
#pragma mark * exported globals *
//****************************************************
#pragma mark -
#pragma mark * local (static) globals *
//****************************************************
#pragma mark -
#pragma mark * exported function implementations *
/*****************************************************
*
* main (argc, argv)
*
* Purpose: main program entry point
*
* Inputs: argc - the number of elements in the argv array
* argv - an array of pointers to the parameters to this application
*
* Returns: int - error code (0 == no error)
*/
int main(int argc, char* argv[])
{
OSStatus status;
// Can we run this particular demo application?
long response;
status = Gestalt(gestaltSystemVersion, &response);
Boolean ok = ((status == noErr) && (response >= 0x00001040));
if (!ok)
{
DialogRef theAlert;
CreateStandardAlert(kAlertStopAlert, CFSTR("Mac OS X 10.4 (minimum) is required for this application"), NULL, NULL, &theAlert);
RunStandardAlert(theAlert, NULL, NULL);
ExitToShell();
}
// Create a Nib reference passing the name of the nib file (without the .nib extension)
// CreateNibReference only searches into the application bundle.
IBNibRef nibRef;
status = CreateNibReference(CFSTR("main"), &nibRef);
require_noerr(status, CreateNibReference);
// Once the nib reference is created, set the menu bar. "MainMenu" is the name of the menu bar
// object. This name is set in InterfaceBuilder when the nib is created.
status = SetMenuBarFromNib(nibRef, CFSTR("MenuBar"));
require_noerr(status, SetMenuBarFromNib);
// We no longer need this Nib reference
DisposeNibReference(nibRef);
// Enabling Preferences menu item
EnableMenuCommand(NULL, kHICommandPreferences);
// Let's react to User's commands.
Install_AppleEventHandlers();
EventTypeSpec eventTypeCP = {kEventClassCommand, kEventCommandProcess};
status = InstallEventHandler(GetApplicationEventTarget(), Handle_CommandProcess, 1, &eventTypeCP, NULL, NULL);
require_noerr(status, InstallEventHandler);
EventTypeSpec eventTypeCUS = {kEventClassCommand, kEventCommandUpdateStatus};
status = InstallEventHandler(GetApplicationEventTarget(), Handle_CommandUpdateStatus, 1, &eventTypeCUS, NULL, NULL);
require_noerr(status, InstallEventHandler);
// Call the event loop
RunApplicationEventLoop();
InstallEventHandler:
SetMenuBarFromNib:
CreateNibReference:
return status;
} // main
/*****************************************************/
#pragma mark -
#pragma mark * local (static) function implementations *
#pragma mark * AppleEvent Handlers *
/*****************************************************
*
* Handle_OpenApplication(inAppleEvent, reply, inHandlerRefcon)
*
* Purpose: AppleEvent handler for the kAEOpenApplication event
*
* Inputs: inAppleEvent - the Apple event
* reply - our reply to the Apple event
* inHandlerRefcon - refcon passed to AEInstallEventHandler when this hander was installed
*
* Returns: OSErr - error code (0 == no error)
*/
static pascal OSErr Handle_OpenApplication(const AppleEvent *inAppleEvent, AppleEvent *outAppleEvent, long inHandlerRefcon)
{
return Do_NewWindow(NULL); // create an empty window
} // Handle_OpenApplication
/*****************************************************
*
* Handle_ReopenApplication(inAppleEvent, reply, inHandlerRefcon)
*
* Purpose: AppleEvent handler for the kAEReopenApplication event
*
* Inputs: inAppleEvent - the Apple event
* reply - our reply to the Apple event
* inHandlerRefcon - refcon passed to AEInstallEventHandler when this hander was installed
*
* Returns: OSErr - error code (0 == no error)
*/
static pascal OSErr Handle_ReopenApplication(const AppleEvent *inAppleEvent, AppleEvent *outAppleEvent, long inHandlerRefcon)
{
// We were already running but with no windows so we create an empty one.
WindowRef theWindow = GetFrontWindowOfClass(kDocumentWindowClass, true);
if (theWindow == NULL)
return Do_NewWindow(NULL);
else
return noErr;
} // Handle_ReopenApplication
/*****************************************************
*
* Handle_OpenDocuments(inAppleEvent, reply, inHandlerRefcon)
*
* Purpose: AppleEvent handler for the kAEOpenDocuments event
*
* Inputs: inAppleEvent - the Apple event
* reply - our reply to the Apple event
* inHandlerRefcon - refcon passed to AEInstallEventHandler when this hander was installed
*
* Returns: OSErr - error code (0 == no error)
*/
static pascal OSErr Handle_OpenDocuments(const AppleEvent *inAppleEvent, AppleEvent *outAppleEvent, long inHandlerRefcon)
{
return errAEEventNotHandled;
} // Handle_OpenDocuments
/*****************************************************
*
* Handle_PrintDocuments(inAppleEvent, reply, inHandlerRefcon)
*
* Purpose: AppleEvent handler for the kAEPrintDocuments event
*
* Inputs: inAppleEvent - the Apple event
* reply - our reply to the Apple event
* inHandlerRefcon - refcon passed to AEInstallEventHandler when this hander was installed
*
* Returns: OSErr - error code (0 == no error)
*/
static pascal OSErr Handle_PrintDocuments(const AppleEvent *inAppleEvent, AppleEvent *outAppleEvent, long inHandlerRefcon)
{
return errAEEventNotHandled;
} // Handle_PrintDocuments
/*****************************************************
*
* Install_AppleEventHandlers(void)
*
* Purpose: installs the AppleEvent handlers
*
* Inputs: none
*
* Returns: none
*/
static void Install_AppleEventHandlers(void)
{
OSErr status;
status = AEInstallEventHandler(kCoreEventClass, kAEOpenApplication, Handle_OpenApplication, 0, false);
require_noerr(status, CantInstallAppleEventHandlerOpenAppl);
status = AEInstallEventHandler(kCoreEventClass, kAEReopenApplication, Handle_ReopenApplication, 0, false);
require_noerr(status, CantInstallAppleEventHandlerReOpenAppl);
status = AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments, Handle_OpenDocuments, 0, false);
require_noerr(status, CantInstallAppleEventHandlerOpenDocs);
status = AEInstallEventHandler(kCoreEventClass, kAEPrintDocuments, Handle_PrintDocuments, 0, false);
require_noerr(status, CantInstallAppleEventHandlerPrintDocs);
// Note: Since RunApplicationEventLoop installs a Quit AE Handler, there is no need to do it here.
CantInstallAppleEventHandlerOpenAppl:
CantInstallAppleEventHandlerReOpenAppl:
CantInstallAppleEventHandlerOpenDocs:
CantInstallAppleEventHandlerPrintDocs:
return;
} // Install_AppleEventHandlers
#pragma mark -
#pragma mark * CarbonEvent Handlers *
/*****************************************************
*
* Handle_CommandUpdateStatus(inHandlerCallRef, inEvent, inUserData)
*
* Purpose: called to update status of the commands, enabling or disabling the menu items
*
* Inputs: inHandlerCallRef - reference to the current handler call chain
* inEvent - the event
* inUserData - app-specified data you passed in the call to InstallEventHandler
*
* Returns: OSStatus - noErr indicates the event was handled
* eventNotHandledErr indicates the event was not handled and the Toolbox should take over
*/
static pascal OSStatus Handle_CommandUpdateStatus(EventHandlerCallRef inHandlerCallRef, EventRef inEvent, void *inUserData)
{
OSStatus status = eventNotHandledErr;
HICommand aCommand;
GetEventParameter(inEvent, kEventParamDirectObject, typeHICommand, NULL, sizeof(HICommand), NULL, &aCommand);
WindowRef aWindowRef = GetFrontWindowOfClass(kDocumentWindowClass, true);
if (aWindowRef == NULL)
{
switch (aCommand.commandID)
{
case kHICommandClose:
DisableMenuItem(aCommand.menu.menuRef, aCommand.menu.menuItemIndex);
break;
}
}
else
{
switch (aCommand.commandID)
{
case kHICommandClose:
EnableMenuItem(aCommand.menu.menuRef, aCommand.menu.menuItemIndex);
break;
}
}
return status;
} // Handle_CommandUpdateStatus
/*****************************************************
*
* Handle_CommandProcess(inHandlerCallRef, inEvent, inUserData)
*
* Purpose: called to process commands from Carbon events
*
* Inputs: inHandlerCallRef - reference to the current handler call chain
* inEvent - the event
* inUserData - app-specified data you passed in the call to InstallEventHandler
*
* Returns: OSStatus - noErr indicates the event was handled
* eventNotHandledErr indicates the event was not handled and the Toolbox should take over
*/
static pascal OSStatus Handle_CommandProcess(EventHandlerCallRef inHandlerCallRef, EventRef inEvent, void *inUserData)
{
OSStatus status = eventNotHandledErr;
HICommand aCommand;
GetEventParameter(inEvent, kEventParamDirectObject, typeHICommand, NULL, sizeof(HICommand), NULL, &aCommand);
switch (aCommand.commandID)
{
case kHICommandPreferences:
Do_Preferences();
break;
case kHICommandNew:
status = Do_NewWindow(NULL);
break;
case kHICommandQuit:
status = Do_CleanUp();
break;
default:
{
// we want to know in the console whenever we get an unidentified command since
// another handler should have probably dealt with it before...
UInt32 commandAsOSTypeChars = CFSwapInt32HostToBig(aCommand.commandID);
char * p = (char *)&commandAsOSTypeChars;
printf("Got unexpected command '%c%c%c%c', %ld in Handle_CommandProcess\n", p[0], p[1], p[2], p[3], aCommand.commandID);
}
break;
}
return status;
} // Handle_CommandProcess
#pragma mark -
#pragma mark * Windows *
/*****************************************************
*
* Do_Preferences(void)
*
* Purpose: routine to display dialog to set our applications preferences
*
* Inputs: none
*
* Returns: none
*/
static void Do_Preferences(void)
{
DialogRef theAlert;
CreateStandardAlert(kAlertStopAlert, CFSTR("No Preferences yet!"), NULL, NULL, &theAlert);
RunStandardAlert(theAlert, NULL, NULL);
} // Do_Preferences
/*****************************************************
*
* Do_CleanUp(void)
*
* Purpose: called when we get the quit event, closes all the windows.
*
* Inputs: none
*
* Returns: OSStatus - eventNotHandledErr indicates that the quit process can continue
*/
static OSStatus Do_CleanUp(void)
{
WindowRef windowToDispose, aWindowRef = GetFrontWindowOfClass(kDocumentWindowClass, true);
while (aWindowRef != NULL)
{
windowToDispose = aWindowRef;
aWindowRef = GetNextWindowOfClass(aWindowRef, kDocumentWindowClass, true);
DisposeWindow(windowToDispose);
}
return eventNotHandledErr;
} // Do_CleanUp
</pre>
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