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main.c
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main.c
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/*
* File: main.c of TypeServicesForUnicode
*
* Contains: This is a sample program that demonstrates how to use
* the Apple Text Services For Unicode Imaging (ATSUI) technology
* in a Carbon Events based HIView architectured application.
*
* It contains a ready-to-use HIATSUIView which is a custom HIView
*
* The HIATSUIView handles:
* - getting and setting the text content
* - getting and setting the styles
* - getting and setting the selection
* - various features like colors, wrapping, framing, justification, and transparency
* - copying and dragging
* - scrolling and auto-scrolling
* - handling of double-clicks, triple-clicks, quadruple=clicks,
* click-and-drag, shift-clicking
*
* The TypeForServices code handles:
* - showing how to set the text
* - showing how to set the text and styles
* - showing how to rotate
* - showing how to handle font variants
* - showing how to handle font selection through the standard Font menu
* - showing how to handle font selection through the standard Font panel
* - showing how to instantiate the HIATSUIView from a nib
* - showing how to read a text file and set the HIATSUIView content
* - showing how to handle the clipboard
* - showing how to handle background pictures
*
* 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: 2.0
*
* Created: 11/4/04
*
* 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 AppleÍs
* 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 "TypeServicesForUnicode.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 *
static IBNibRef gIBNibRef;
//****************************************************
#pragma mark -
#pragma mark * exported function implementations *
/*****************************************************
*
* main (argc, argv)
*
* Purpose: main program entry point
*
* Notes: You might want to change this to something more verbose
*
* 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 = ((noErr == status) && (response >= 0x00001030));
if (!ok)
{
DialogRef theAlert;
CreateStandardAlert(kAlertStopAlert, CFSTR("Mac OS X 10.3 (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.
status = CreateNibReference(CFSTR("main"), &gIBNibRef);
require_noerr(status, CantGetNibRef);
// 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(gIBNibRef, CFSTR("MenuBar"));
require_noerr(status, CantSetMenuBar);
// Adding a Font menu
MenuRef fontMenu = GetMenuRef(3);
require(fontMenu != NULL, CantSetMenuBar);
status = CreateStandardFontMenu(fontMenu, 0, 0, 0, NULL);
require_noerr(status, CantSetMenuBar);
// Enabling Preferences menu item
EnableMenuCommand(NULL, kHICommandPreferences);
// Let's react to User's commands.
Install_AppleEventHandlers();
EventTypeSpec eventTypeCP = {kEventClassCommand, kEventCommandProcess};
InstallEventHandler(GetApplicationEventTarget(), Handle_CommandProcess, 1, &eventTypeCP, NULL, NULL);
EventTypeSpec eventTypeCUS = {kEventClassCommand, kEventCommandUpdateStatus};
InstallEventHandler(GetApplicationEventTarget(), Handle_CommandUpdateStatus, 1, &eventTypeCUS, NULL, NULL);
EventTypeSpec eventTypeAA = {kEventClassApplication, kEventAppActivated};
InstallEventHandler(GetApplicationEventTarget(), Handle_AppActivated, 1, &eventTypeAA, NULL, NULL);
// Call the event loop
RunApplicationEventLoop();
CantSetMenuBar:
CantGetNibRef:
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_NewSingleLineSingleStyleWindow(); // 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_NewSingleLineSingleStyleWindow();
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);
// Do we have a front window containing a HIATSUIView?
WindowRef frontWindow;
HIViewRef atsuiView;
Get_FrontWindowAndATSUIView(&frontWindow, &atsuiView, false);
// Do we have some selected text?
Boolean textSelected = false;
if (atsuiView != NULL)
{
UniCharArrayOffset start, end;
HIATSUIViewGetSelection(atsuiView, &start, &end);
textSelected = (start != end);
}
if (frontWindow == NULL)
{
// no window, let's disable all relevant menu items
switch (aCommand.commandID)
{
case kHICommandSelectAll:
case kHICommandCopy:
case kHICommandClose:
DisableMenuItem(aCommand.menu.menuRef, aCommand.menu.menuItemIndex);
break;
}
}
else
{
switch (aCommand.commandID)
{
// the "Copy" menu item is enabled only is some text is selected
case kHICommandCopy:
if (textSelected)
EnableMenuItem(aCommand.menu.menuRef, aCommand.menu.menuItemIndex);
else
DisableMenuItem(aCommand.menu.menuRef, aCommand.menu.menuItemIndex);
break;
// the "Select All" menu item is enabled only if there is a HIATSUIView in the front window
case kHICommandSelectAll:
if (atsuiView != NULL)
EnableMenuItem(aCommand.menu.menuRef, aCommand.menu.menuItemIndex);
else
DisableMenuItem(aCommand.menu.menuRef, aCommand.menu.menuItemIndex);
break;
// the "Close" menu item is enabled only if there is a window
case kHICommandClose:
EnableMenuItem(aCommand.menu.menuRef, aCommand.menu.menuItemIndex);
break;
}
}
// let's adjust the "Show/Hide Fonts" menu item title depending on the visibility of the Standard Font panel
if (aCommand.commandID == kHICommandShowHideFontPanel)
{
CFStringRef menuItemString;
if (FPIsFontPanelVisible())
menuItemString = CFCopyLocalizedString( CFSTR("Hide Fonts"), CFSTR("") );
else
menuItemString = CFCopyLocalizedString( CFSTR("Show Fonts"), CFSTR("") );
SetMenuItemTextWithCFString(aCommand.menu.menuRef, aCommand.menu.menuItemIndex, menuItemString);
CFRelease(menuItemString);
}
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)
{
HICommand aCommand;
OSStatus status = eventNotHandledErr;
GetEventParameter(inEvent, kEventParamDirectObject, typeHICommand, NULL, sizeof(HICommand), NULL, &aCommand);
switch (aCommand.commandID)
{
case kHICommandPreferences:
Do_Preferences();
break;
case kHICommandOpen:
status = Do_OpenATextFile();
break;
case kHICommandSelectAll:
status = Handle_SelectAll();
break;
case kHICommandCopy:
status = Handle_Copy();
break;
case 'SLSS':
status = Do_NewSingleLineSingleStyleWindow();
break;
case 'SLMS':
status = Do_NewSingleLineMultipleStyleWindow();
break;
case 'VLMS':
status = Do_NewSingleVerticalLineMultipleStyleWindow();
break;
case 'PRGR':
status = Do_NewParagraphsWindow();
break;
case 'HGHL':
status = Do_NewHighlightingWindow();
break;
case 'HTST':
status = Do_NewHitTestingWindow();
break;
case 'UCLP':
status = Do_ShowClipboardWindow();
break;
case 'TXTB':
status = Do_NewTextBoxWindow(gIBNibRef);
break;
case 'FNTV':
status = Do_NewUsingFontVariantsWindow();
break;
case 'SCRL':
status = Do_NewScrollingWindow();
break;
case 'UAPI':
status = Do_CreateWithTextWindow();
break;
case 'UNIB':
status = Do_CreateFromNibWindow(gIBNibRef);
break;
case kHICommandShowHideFontPanel:
// nothing to do, we just pass through, returning eventNotHandledErr so that the HIToolbox
// shows or hides the System Font Panel
break;
case kHICommandAbout:
// nothing to do, we just pass through, returning eventNotHandledErr so that the HIToolbox
// shows the Standard About Box
break;
case kHICommandQuit:
status = Do_CleanUp();
break;
default:
{
// we may have a font selection from the Font Menu.
status = Handle_FontMenuSelection(&aCommand);
// if not, let's print out the unknown command for debugging purposes
if (status != noErr)
{
char buffer[200];
char smallbuf[4], *p = smallbuf;
*((UInt32 *)p) = aCommand.commandID;
sprintf(buffer, "Got unknown command id: %ld, '%c%c%c%c', ", aCommand.commandID, p[0], p[1], p[2], p[3]);
debug_string(buffer);
}
}
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);
for ( ; aWindowRef != NULL; )
{
windowToDispose = aWindowRef;
aWindowRef = GetNextWindowOfClass(aWindowRef, kDocumentWindowClass, true);
DisposeWindow(windowToDispose);
}
return eventNotHandledErr;
} // Do_CleanUp