/*

    File:       main.c

    Contains:   HITextView usage from Interface Builder and from API Programing.

    Version:    1.0

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    Copyright © 2003 Apple Computer, Inc., All Rights Reserved

*/

#include <Carbon/Carbon.h>

pascal OSStatus CommandProcess(EventHandlerCallRef nextHandler, EventRef theEvent, void* userData);

void AddTextToTheHITextView(WindowRef window);

void DoHITextViewFromAPIs(void);

int main(int argc, char* argv[])

    {

    IBNibRef        nibRef;

    WindowRef       window;

    OSStatus        err;

   // Can we run this particular demo application?

    long response;

    err = Gestalt(gestaltSystemVersion, &response);

    Boolean ok = ((err == noErr) && (response >= 0x00001030));

   if (!ok)

      {

        StandardAlert(kAlertStopAlert, "\pMac OS X 10.3 (minimum) is required for this application", "\p", 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.

    err = CreateNibReference(CFSTR("main"), &nibRef);

    require_noerr(err, 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.

    err = SetMenuBarFromNib(nibRef, CFSTR("MenuBar"));

    require_noerr(err, CantSetMenuBar);

    // Then create a window. "MainWindow" is the name of the window object. This name is set in 

    // InterfaceBuilder when the nib is created.

    err = CreateWindowFromNib(nibRef, CFSTR("MainWindow"), &window);

    require_noerr(err, CantCreateWindow);

    // We don't need the nib reference anymore.

    DisposeNibReference(nibRef);

    // Let's add some text in the HITextView in that window

    AddTextToTheHITextView(window);

    // The window was created hidden so show it.

    ShowWindow(window);

    EventTypeSpec eventType = {kEventClassCommand, kEventCommandProcess};

    InstallEventHandler(GetApplicationEventTarget(), NewEventHandlerUPP(CommandProcess), 1, &eventType, NULL, NULL);

    DoHITextViewFromAPIs();

    // Call the event loop

    RunApplicationEventLoop();

CantCreateWindow:

CantSetMenuBar:

CantGetNibRef:

    return err;

    }

pascal OSStatus CommandProcess(EventHandlerCallRef nextHandler, EventRef theEvent, void* userData)

    {

#pragma unused (nextHandler, userData)

    HICommand aCommand;

    OSStatus status = noErr;

    GetEventParameter(theEvent, kEventParamDirectObject, typeHICommand, NULL, sizeof(HICommand), NULL, &aCommand);

    switch (aCommand.commandID)

        {

        case kHICommandNew:

            DoHITextViewFromAPIs();

            break;

        default:

            status = eventNotHandledErr;

            break;

        }

    return status;

    }

void AddTextToTheHITextView(WindowRef window)

    {

    ControlID id = { 'xyzt', 1 }; // set with Interface Builder in the Inspector

    HIViewRef textView;

    HIViewFindByID(HIViewGetRoot(window), id, &textView);

    char buffer[] = "This HITextView was created with Interface Builder and this text was added at Runtime when the window was instantiated.";

    TXNSetData(HITextViewGetTXNObject(textView), kTXNTextData, buffer, sizeof(buffer), kTXNStartOffset, kTXNStartOffset);

    }

void DoHITextViewFromAPIs(void)

    {

    WindowRef theWind;

    Rect bounds = {50, 520, 550, 1020};

    OSStatus theStatus = CreateNewWindow(

                                    kDocumentWindowClass,

                                    kWindowStandardDocumentAttributes |

                                    kWindowStandardHandlerAttribute |

                                    kWindowLiveResizeAttribute |

                                    kWindowCompositingAttribute,

                                    &bounds, &theWind);

    if ((theStatus != noErr) || (theWind == NULL)) {DebugStr("\pCreateNewWindow failed!"); return;}

    SetWindowTitleWithCFString(theWind, CFSTR("HITextView from API programing"));

    HIViewRef contentView;

    HIViewFindByID(HIViewGetRoot(theWind), kHIViewWindowContentID, &contentView);

    HIRect boundsRect;

    HIViewGetBounds(contentView, &boundsRect);

    boundsRect = CGRectInset(boundsRect, 16.0, 16.0);

    HIViewRef scrollView;

    theStatus = HIScrollViewCreate(kHIScrollViewValidOptions, &scrollView);

    if (theStatus != noErr) {DebugStr("\p HIScrollViewCreate failed"); return;}

    HIViewSetFrame(scrollView, &boundsRect);

    HILayoutInfo layout = {

        kHILayoutInfoVersionZero,

        {

            { NULL, kHILayoutBindTop },

            { NULL, kHILayoutBindLeft },

            { NULL, kHILayoutBindBottom },

            { NULL, kHILayoutBindRight }

        },

        {

            { NULL, kHILayoutScaleAbsolute, 0 },

            { NULL, kHILayoutScaleAbsolute, 0 }

        },

        {

            { NULL, kHILayoutPositionTop, 16 },

            { NULL, kHILayoutPositionLeft, 16 }

        }

    };

    theStatus = HIViewSetLayoutInfo(scrollView, &layout);

    HIViewSetVisible(scrollView, true); 

    theStatus = HIViewAddSubview(contentView, scrollView);

    HIViewRef textView;

    theStatus = HITextViewCreate(NULL, 0, 0, &textView);

    if (theStatus != noErr) {DebugStr("\p HITextViewCreate failed"); return;}

    char buffer[] = "This HITextView was created with the HITextViewCreate API and embedded in a HIScrolView and this text was added at the same time.";

    theStatus = TXNSetData(HITextViewGetTXNObject(textView), kTXNTextData, buffer, sizeof(buffer), kTXNStartOffset, kTXNStartOffset);

    HIViewSetVisible(textView, true);   

    theStatus = HIViewAddSubview(scrollView, textView);

    // and assigned an ID to find it later

    ControlID controlID = { 'xyzt', 1 };

    SetControlID(scrollView, &controlID);

    ShowWindow(theWind);

    }