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Dragging Objects
Volume Number:7
Issue Number:3
Column Tag:Jörg's Folder

Dragging Multiple Objects

By Jörg Langowski, MacTutor Editorial Board

Note: Source code files accompanying article are located on MacTech CD-ROM or source code disks.

“C++/MacApp - dragging multiple objects”

We’ll continue the C++/MacApp drawing example this month, which we had left off in V6#12. As promised, although a little late because of the intervening Fortran review, we’ll add multiple shape selections. Also, we’ll define some different shapes, so that we don’t have to draw boring boxes all the time.

As before, the example code contains only those routines and definitions that have been changed with respect to the last example; reprinting the whole example each time would take up too much space. You’ll find the full code on the source code disk.

Shape subclasses

The easy part first: we’ll define some subclasses of TBox that correspond to ovals, rectangles and rounded rectangles. Common to all these objects is that their frame and contents will be drawn with certain patterns and a certain pen size, so we derive one new subclass of TBox, TShape, which contains the instance variables fPenSize, fPenPat and fFillPat.

There is also a new instance variable in the TBox class, fSelected; if I had designed the example properly from the start, we would never have to touch our subclasses again, but you see a program being developed here. So we’ll add this new instance variable; TBox will be our general class that corresponds to any object displayed in our window, occupying a certain space (fLocation) and being selected or not (fSelected).

From TShape, we derive three subclasses: TRect, TOval and TRoundRect. Of these, TRoundRect needs two more new instance variables to describe the corner curvature. We’ll define the new drawing methods (listing 2), and initializations for TBox and TShape [note that a Pattern is actually an 8-byte array and has to be copied explicitly, as shown in TShape::IBox]. In TBox::DrawShape, we’ll also check whether the shape has been selected and draw a black frame around it if so.

The CalcDiskSpace methods have to be modified to include the space for the new instance variables. I have, however, not yet changed the Read and Write methods to include the new information; therefore, Open and Save will not work as expected yet. We’ll work on that in a later column.

This would be all we need to do to work with the new shape objects, except that so far there is no way to draw them. We have to include three new selections in the palette; this is done by modifying code in TTEApplication and TPaletteView (see Listing 2). Later, we could make the code a little more general here and include a variable that defines the number of selections in the palette. Three new icons are included in the TEDrag.rsrc file (source code disk). Finally, TSketcher::TrackMouse had to be modified to include the new shapes.

Selecting and dragging multiple shapes

The main modification to our example is the selection of multiple shapes, like in MacDraw, and simultaneous dragging. For this we have to modify the TDragger and TSketcher command objects.

The way selections take place in our example is implemented in TSketcher::DoMouseCommand (see listing):

When you have chosen a drawing tool (rectangle, round rectangle or oval) from the palette, and click on an object that already exists, it will be selected (indicated by a black rectangular frame). When you click on another object, that object will be selected and the previous one deselected. Holding down the Shift key allows you to click on other objects and select/deselect them, without affecting the objects already selected. Clicking on one of the selected objects without the Shift key allows you to drag the selection.

How do we drag a multiple selection? (See TDragger::DoMouseCommand in the listing). For the drag feedback, we would like to have something like in MacDraw; an outline of all the shapes being drawn. Therefore, we first create a region that contains all the shapes, save the region handle, and create a picture that draws the outline of that region in patXOr mode. That will be our feedback picture.

For doing and undoing the command, we need to save the total distance that the selection has been moved in the new instance variable fDelta. We have to play around again with a global procedure, MoveSelected, that is passed to the ForEachShapeDo method as a parameter. How C++ simulates the Pascal way of passing procedures as parameters has been described in V6#11.

That’s all. Note that, although the example listing is again rather long, we did not have to touch most of the code, one of the advantages of MacApp. In the next of these articles, we’ll straighten out the disk I/O and maybe add some more bells and whistles to the drawing part of the program. Also, sometime we’ll modify the text edit part, so that our text is written in a nice box, draggable and resizeable.

NEON news

For you faithful Forth readers: It has finally happened, NEON is now in the public domain. But it’s not called NEON anymore. Here’s what Bob Loewenstein wrote over the network:

After a long negotiation period with Kriya Systems, I have received written permission to release Neon into the public domain. The letter from Kriya reads:

“Kriya Systems, Inc. gives you [me] the permission to freely distribute for scientific and educational purposes the programming language formerly known as Neon, including the distribution of the source which has been released to you. You do not have the right to use the name Neon, as it apparently had prior use by another company and is not a valid trademark of Kriya Systems. All commercial distribution rights are reserved by Kriya Systems, Inc.”

Since a few of us at the University of Chicago have modified the language somewhat, and to comply with Kriya’s wishes, we have renamed the language Yerk, which is at least not an acronym for anything, but rather stands for Yerkes Observatory, part of the Department of Astronomy and Astrophysics at U of C. [I’m pleased to note that “Yerk” also corresponds more or less to the German pronunciation of my name - JL].

For those who don’t know about Neon, it was an object oriented, Macintosh targeted language based on a Forth Kernel with some major modifications. It was developed and sold as a product by Kriya Systems from 1985 to 1988. Because it is an extensible language, it was possible for us to keep it compatible with new toolkit calls, new Mac managers, etc. We have modified the nucleus to make improvements, but it is still an evolving language. We are releasing it at this time because it is a very useable and powerful language/environment for the mac.

We have written many data acquisition and display programs with Yerk, as well as graphical interfaces for instrument control (both telescopes and instruments). While not part of this release, we have written interfaces for Color Quickdraw for image processing programs, and a MacTCP interface for network interface. These and other interfaces will probably be made available on request, with the understanding that they were written for specific applications and not as general support interfaces.

Some features of the language are:

- defaulted early binding, with ability to late bind in almost any circumstance

- inheritance (not multiple)

- floating point (SANE)

- many system classes and objects for Mac interfacing:

windows, controls, events, files, arrays, ordered-columns, menus, hierarchical and popup menus, handles, strings, mouse, Quickdraw, modal dialogs, offscreen bitmaps, VBL, time manager, etc.

- module (overlay) creation that are loaded only when necessary and may be purged from application heap memory.

Some forth extensions are:

- local input parameters

- named input variables

- multiple cfa words (including vectors and values)

- CASE

- SELECT

- 68000 assembler

We have used the language on the following macs:

Mac+,SE,SE30,MacII,IIci,IIx,IIcx. There is no reason to believe that it won’t work on any Mac+ or beyond. Any system >= 6.0 is recommended.

The complete source files, an executable Yerk environment, and update manual (MS Word 4.0 format) are available with anonymous ftp at oddjob.uchicago.edu in ~ftp/pub/Yerk directory. They are compressed with Stuffit and then binhexed. Please try to download these files in the evening hours. In the near future, these files may be added to the MacTutor source code disk.

If anyone has any questions, feel free to contact me:

Bob Loewenstein

Yerkes Observatory

Williams Bay, Wi 53191

414-245-5555

rfl@oddjob.uchicago.edu

-- the end of Bob’s letter --

I have requested the Yerk files through network mail. They are rather long, and I don’t know whether they will arrive in time to be put on the source code disk before this month’s deadline. Anyway, they’ll be available in the near future. Again, if you have problems accessing the ftp server, you can drop me E-mail at langowski@frembl51.bitnet.

See you again next month.

Listing 1: Changes in TEDrag.h after V6#12

class TBox : public TObject {
public:
 Rect fLocation;
 BooleanfSelected;
 virtual pascal void IBox(Rect *itsLocation);
 virtual pascal void DrawShape();
 virtual pascal void NeedDiskSpace(long *data);
 virtual pascal void Read(short aRefNum);
 virtual pascal void Write(short aRefNum);
#ifdef qDebug
 virtual pascal void Fields(pascal void (*DoToField) 
 (StringPtr fieldName, Ptr fieldAddr,
 short fieldType, void *link), void *link);
#endif
};

class TShape : public TBox {
public:
 short  fPenSize;
 PatternfPenPat;
 PatternfFillPat;
 virtual pascal void NeedDiskSpace(long *data);
 virtual pascal void IBox(Rect *itsLocation);

#ifdef qDebug
 virtual pascal void Fields(pascal void (*DoToField) 
 (StringPtr fieldName, Ptr fieldAddr,
 short fieldType, void *link), void *link);
#endif
};

class TRect : public TShape {
public:
 pascal void DrawShape();
 pascal void NeedDiskSpace(long *data);
#ifdef qDebug
 virtual pascal void Fields(pascal void (*DoToField) 
 (StringPtr fieldName, Ptr fieldAddr,
 short fieldType, void *link), void *link);
#endif
};

class TOval : public TShape {
public:
 pascal void DrawShape();
 pascal void NeedDiskSpace(long *data);
#ifdef qDebug
 virtual pascal void Fields(pascal void (*DoToField) 
 (StringPtr fieldName, Ptr fieldAddr,
 short fieldType, void *link), void *link);
#endif
};

class TRoundRect : public TShape {
public:
 short  fOvalWidth;
 short  fOvalHeight;
 
 pascal void IBox(Rect *itsLocation);
 pascal void DrawShape();
 pascal void NeedDiskSpace(long *data);
#ifdef qDebug
 virtual pascal void Fields(pascal void (*DoToField) 
 (StringPtr fieldName, Ptr fieldAddr,
 short fieldType, void *link), void *link);
#endif
};

class TDragger : public TCommand {
public:
 TTEDocument   *fTEDocument;
 TTextView*fTextView;
 TBox   *fBox;
 Rect   oldLocation; 
 Rect   newLocation; PointfDelta;  // offset moved
 PicHandlefFeedbackPicture; Rect   fPictureBounds;

pascal void IDragger (TBox *itsBox, 
 TTEDocument *itsDocument, TTextView *itsView);
 pascal struct TCommand *TrackMouse
 (TrackPhase aTrackPhase, VPoint *anchorPoint, 
 VPoint *previousPoint, VPoint *nextPoint, 
 Boolean mouseDidMove);
 pascal void TrackFeedback(VPoint *anchorPoint, 
 VPoint *nextPoint, Boolean turnItOn, 
 Boolean mouseDidMove);
 pascal void DoIt();
 pascal void RedoIt();
 pascal void UndoIt();
#ifdef qDebug
 virtual pascal void Fields(pascal void (*DoToField) 
 (StringPtr fieldName, Ptr fieldAddr, 
 short fieldType, void *link), void *link);
#endif
};

// -- global definitions --

// support for dragging, JL 9/90
struct FindBoxStruct {
 Point theMouse;
 TBox *myBox;
};

// support for selections, JL 1/91
struct SelectStruct {
 TTextView *myTextView;
};

// support for moves, JL 1/91
struct MoveStruct {
 Point delta;
};
Listing 2: Changes in TEDrag.cp after V6#12

pascal void TBox::IBox(Rect *itsLocation)
 {    fLocation = *itsLocation;  
 fSelected = false;}

pascal void TBox::DrawShape()
{if (fSelected)
 { PenSize (1,1);
 ForeColor(blackColor);
 FrameRect(&fLocation);   ForeColor(kBoxColor);   }
}

pascal void TBox::NeedDiskSpace(long *data)
{data = data + sizeof(fLocation) + sizeof(fSelected);
}

#ifdef qDebug
pascal void TBox::Fields
 (pascal void (*DoToField) (StringPtr fieldName,
 Ptr fieldAddr, short fieldType, void *link), void *link)
{
 DoToField(“\pTBox”, nil, bClass, link);
 DoToField(“\pfLocation”, (Ptr) &fLocation, bRect, link);
 DoToField(“\pfSelected”, 
 (Ptr) &fSelected, bBoolean, link);
 inherited::Fields(DoToField, link);
}
#endif

pascal void TShape::NeedDiskSpace(long *data)
{inherited::NeedDiskSpace(data);
 data = data + sizeof(fPenSize) 
 + sizeof(fPenPat) + sizeof(fFillPat);
}

pascal void TShape::IBox(Rect *itsLocation)
 { fLocation = *itsLocation;  
 fPenSize = 1;
 
 for (int i = 0; i<8 ; i++)
 { fPenPat[i]  = qd.black[i];
   fFillPat[i] = qd.gray[i];   }
 inherited::IBox(itsLocation);
 }

#ifdef qDebug
pascal void TShape::Fields
 (pascal void (*DoToField) (StringPtr fieldName,
 Ptr fieldAddr, short fieldType, void *link), void *link)
{
 DoToField(“\pTShape”, nil, bClass, link);
 DoToField(“\pfPenSize”, 
 (Ptr) &fPenSize, bInteger, link);
 DoToField(“\pfPenPat”,
 (Ptr) &fPenPat, bPattern, link);
 DoToField(“\pfFillPat”, (Ptr) &fFillPat, bPattern, link);
 inherited::Fields(DoToField, link);
}
#endif

pascal void TRect::DrawShape()
{PenSize (fPenSize,fPenSize);
 PenPat (fPenPat);
 FillRect(&fLocation,fFillPat);
 FrameRect(&fLocation);
 inherited::DrawShape();
}

pascal void TRect::NeedDiskSpace(long *data)
{inherited::NeedDiskSpace(data);
}

#ifdef qDebug
pascal void TRect::Fields
 (pascal void (*DoToField) (StringPtr fieldName,
 Ptr fieldAddr, short fieldType, void *link), void *link)
{
 DoToField(“\pTRect”, nil, bClass, link);
 inherited::Fields(DoToField, link);
}
#endif


pascal void TOval::DrawShape()
{PenSize (fPenSize,fPenSize);
 PenPat (fPenPat);
 FillOval(&fLocation,fFillPat);
 FrameOval(&fLocation);
 inherited::DrawShape();
}

pascal void TOval::NeedDiskSpace(long *data)
{inherited::NeedDiskSpace(data);
}

#ifdef qDebug
pascal void TOval::Fields
 (pascal void (*DoToField) (StringPtr fieldName,
 Ptr fieldAddr, short fieldType, void *link), void *link)
{
 DoToField(“\pTOval”, nil, bClass, link);
 inherited::Fields(DoToField, link);
}
#endif

pascal void TRoundRect::IBox(Rect *itsLocation)
 { fOvalWidth = 10;
 fOvalHeight = 10;
 inherited::IBox(itsLocation);
 }

pascal void TRoundRect::DrawShape()
{PenSize (fPenSize,fPenSize);
 PenPat (fPenPat);
 FillRoundRect(&fLocation,
 fOvalWidth,fOvalHeight,fFillPat);
 FrameRoundRect(&fLocation,
 fOvalWidth,fOvalHeight);
 inherited::DrawShape();
}

pascal void TRoundRect::NeedDiskSpace(long *data)
{inherited::NeedDiskSpace(data);
 data = 
 data + sizeof(fOvalWidth) + sizeof(fOvalHeight);
}

#ifdef qDebug
pascal void TRoundRect::Fields
 (pascal void (*DoToField) (StringPtr fieldName,
 Ptr fieldAddr, short fieldType, void *link), void *link)
{
 DoToField(“\pTRoundRect”, nil, bClass, link);
 DoToField(“\pfOvalWidth”, 
 (Ptr) &fOvalWidth, bInteger, link);
 DoToField(“\pfOvalHeight”, 
 (Ptr) &fOvalHeight, bInteger, link);
 inherited::Fields(DoToField, link);
}
#endif
pascal void TTEApplication::ITEApplication(OSType itsMainFileType)
{
 gColorArray[cBlack-cBlack] = blackColor; 
 gColorArray[cBlue-cBlack]  = blueColor;
 gColorArray[cGreen-cBlack] = greenColor;
 gColorArray[cRed-cBlack] = redColor;
 gColorArray[cWhite-cBlack] = whiteColor;
 SetRect(&gIconRect[kBox-kBox], 0, 0, kIconWidth, kIconWidth); // left 
 top  right  bottom
 SetRect(&gIconRect[kText-kBox], kIconWidth, 0, 2 * kIconWidth, kIconWidth);
 SetRect(&gIconRect[kRect-kBox], 2 * kIconWidth, 0, 3 * kIconWidth, kIconWidth); 

 SetRect(&gIconRect[kRRect-kBox], 3 * kIconWidth, 0, 4 * kIconWidth, 
kIconWidth);
 SetRect(&gIconRect[kOval-kBox], 4 * kIconWidth, 0, 5 * kIconWidth, kIconWidth); 

 IApplication(itsMainFileType);

 InitPrinting();
}

pascal void TPaletteView::Draw(Rect *area)
{
 Rect aFrame;
 Point  aPenSize;
 Handle aHandle;
 
 ForeColor(kPaletteColor);
 
 aHandle = GetIcon(kBoxIconID);
 FailNILResource(aHandle);
 PlotIcon(&gIconRect[kBox-kBox], aHandle);
 
 aHandle = GetIcon(kTextIconID);
 FailNILResource(aHandle);
 PlotIcon(&gIconRect[kText-kBox], aHandle);
 
 aHandle = GetIcon(kRectIconID);
 FailNILResource(aHandle);
 PlotIcon(&gIconRect[kRect-kBox], aHandle);
 
 aHandle = GetIcon(kRRectIconID);
 FailNILResource(aHandle);
 PlotIcon(&gIconRect[kRRect-kBox], aHandle);
 
 aHandle = GetIcon(kOvalIconID);
 FailNILResource(aHandle);
 PlotIcon(&gIconRect[kOval-kBox], aHandle);
 
 ForeColor(blackColor);
 GetQDExtent(&aFrame);
 SetPt(&aPenSize, 1, 1);
 Adorn(&aFrame, aPenSize, adnLineBottom);
}

pascal struct TCommand 
 *TPaletteView::DoMouseCommand(Point *theMouse,
 EventInfo *info, Point *hysteresis)
{int  index;
 index = int(theMouse->h / kIconWidth);
 
 if ((index > 0) && (index < 5) 
 && (index != fIconSelected)) 
 { if (Focus()) { DoHighlightSelection(hlOn, hlOff);           
 };
 fIconSelected = index;
 if (Focus()) { DoHighlightSelection(hlOff, hlOn);             
 };
 };
 return gNoChanges;}

pascal void Deselect(TBox *aBox, SelectStruct *aSelectStruct)
{aBox->fSelected = false;
 aSelectStruct->myTextView->
 InvalidRect(&aBox->fLocation);  }

pascal struct TCommand 
 *TTextView::DoMouseCommand(Point *theMouse, 
 EventInfo *info, Point *hysteresis)
{  TSketcher *aSketcher;
 TDragger  *aDragger;
 FindBoxStruct aFindBoxStruct;
 SelectStruct aSelectStruct;
 
 if (fPaletteView->fIconSelected > kText-kBox) 
 {
 // dragging support, JL 9/90
 // multiple selections, JL 1/91
 aFindBoxStruct.theMouse = *theMouse;
 aFindBoxStruct.myBox = nil;
 aSelectStruct.myTextView = 
 fTEDocument->fTextView;
 
 fTEDocument->ForEachShapeDo
 ((DoToObject)FindBox,&aFindBoxStruct);
 
 if (aFindBoxStruct.myBox != nil)
 { 
 if (aFindBoxStruct.myBox->fSelected)
 {
 if (info->theShiftKey) 
 { aFindBoxStruct.myBox->fSelected
 = false;
 InvalidRect
 (&aFindBoxStruct.myBox->fLocation);
 return inherited::DoMouseCommand
 (theMouse,info,hysteresis);
 }
 else
 { aDragger = new TDragger;
 FailNIL(aDragger);
 aDragger->IDragger
 (aFindBoxStruct.myBox, 
  fTEDocument, this);
 return aDragger;
 }
 }
 else
 { if (!info->theShiftKey) 
 { fTEDocument->ForEachShapeDo
 ((DoToObject)Deselect,&aSelectStruct); }
 aFindBoxStruct.myBox->fSelected = 
 true;
 InvalidRect
 (&aFindBoxStruct.myBox->fLocation);
 return inherited::DoMouseCommand
 (theMouse,info,hysteresis);
 }
 }
 else
 { fTEDocument->ForEachShapeDo
 ((DoToObject)Deselect,&aSelectStruct);
 aSketcher = new TSketcher;
 FailNIL(aSketcher);
 aSketcher->ISketcher(fTEDocument, this);
 return aSketcher;
 }
 }
 else
 return inherited::DoMouseCommand
 (theMouse,info,hysteresis);
}

pascal void DrawYourself(TBox *aBox, void *link)
{
 aBox->DrawShape();
}

pascal struct TCommand 
 *TSketcher::TrackMouse(TrackPhase aTrackPhase,
 VPoint *anchorPoint, VPoint *previousPoint, 
 VPoint *nextPoint, Boolean mouseDidMove)
{Rect  newRect;  TBox  *aBox;
 
 if (aTrackPhase == trackRelease)
 { if (!EqualPt(fTextView->ViewToQDPt
 (anchorPoint),
 fTextView->ViewToQDPt(nextPoint)) )
 { Pt2Rect(
 fTextView->ViewToQDPt(anchorPoint), 
 fTextView->ViewToQDPt(nextPoint), 
 &newRect);

 switch (fTextView->
 fPaletteView->fIconSelected)
 { case kBox-kBox:
 case kRect-kBox:
 aBox = new TRect; break;
 case kRRect-kBox:
   aBox = new TRoundRect; break;
 case kOval-kBox:
 aBox = new TOval; break;
 default: aBox = nil;    }
 
 FailNIL(aBox);
 aBox->IBox(&newRect);
 fBox = aBox;    fBoxLocation = newRect;
 }
 else
 { return gNoChanges;    }
 }
 return this;
}

pascal void DrawSelected(TBox *aBox, void *link)
{
 if (aBox->fSelected)
 { aBox->fSelected = false;
 aBox->DrawShape();
 aBox->fSelected = true;  }
}

pascal void MoveSelected(TBox *aBox, MoveStruct    *aMoveStruct)
{if (aBox->fSelected)
 { OffsetRect(&aBox->fLocation,
 aMoveStruct->delta.h,
 aMoveStruct->delta.v);   }
}

pascal struct TCommand 
 *TDragger::TrackMouse(TrackPhase aTrackPhase,
 VPoint *anchorPoint, VPoint *previousPoint, 
 VPoint *nextPoint, Boolean mouseDidMove)
{void   *link; Rectr;
 RgnHandleoldClip; RgnHandle  DragRgn;
 PenState oldState; MoveStruct  aMoveStruct;
 
 if (aTrackPhase == trackPress)
 { oldClip = MakeNewRgn();
 DragRgn = MakeNewRgn();
 GetClip(oldClip);
 GetPenState(&oldState);

// create outline of shapes being drawn
 OpenRgn();
 fTEDocument->ForEachShapeDo
 ((DoToObject)DrawSelected,link);
 CloseRgn(DragRgn);

// get enclosing rectangle & make picture
 r = (*DragRgn)->rgnBBox;
 fFeedbackPicture = OpenPicture(&r);
 FailNIL(fFeedbackPicture);
 ClipRect(&r);
 PenNormal();
 PenMode(patXor);
 FrameRgn(DragRgn);
 ClosePicture();
 fPictureBounds = r;
// initialize old and new update rectangles
 oldLocation = r;
 newLocation = r;
// reset old states
 DisposeRgn(DragRgn);SetClip(oldClip);
 DisposeRgn(oldClip);
 SetPenState(&oldState);
 
 if (EmptyRect(&(*fFeedbackPicture)->picFrame))
 { KillPicture(fFeedbackPicture);
 fFeedbackPicture = nil;
 FailNIL(fFeedbackPicture);   }
 }

 if ((aTrackPhase == trackMove) && mouseDidMove)
 { fDelta = fTextView->ViewToQDPt(nextPoint);
 SubPt(fTextView->ViewToQDPt(previousPoint),
 &fDelta);
 OffsetRect(&fPictureBounds,fDelta.h,fDelta.v);
 }

 if ((aTrackPhase == trackRelease) 
 && mouseDidMove)
 { fDelta = fTextView->ViewToQDPt(nextPoint);
 SubPt(fTextView->ViewToQDPt(anchorPoint),
 &fDelta);
 
 if ((fDelta.h == 0) && (fDelta.v == 0))
 { return gNoChanges;   }
 OffsetRect(&newLocation,fDelta.h,fDelta.v);
 
 aMoveStruct.delta = fDelta;
 fTEDocument->ForEachShapeDo
 ((DoToObject)MoveSelected,&aMoveStruct);
 
 if (fFeedbackPicture != nil)  // being paranoid
 { KillPicture(fFeedbackPicture);
 fFeedbackPicture = nil;   }
 }
 return this;
}

pascal void TDragger::DoIt()
{
 fTextView->InvalidRect(&newLocation);
 fTextView->InvalidRect(&oldLocation);
}

pascal void TDragger::RedoIt()  
{  
 MoveStruct aMoveStruct;
 aMoveStruct.delta = fDelta;
 fTEDocument->ForEachShapeDo
 ((DoToObject)MoveSelected,&aMoveStruct);
 DoIt(); 
}

pascal void TDragger::UndoIt()
{
 MoveStruct aMoveStruct;
 aMoveStruct.delta.h = -fDelta.h;
 aMoveStruct.delta.v = -fDelta.v;
 fTEDocument->ForEachShapeDo
 ((DoToObject)MoveSelected,&aMoveStruct);
 DoIt(); 
}

#ifdef qDebug
pascal void TDragger::Fields
 (pascal void (*DoToField) (StringPtr fieldName,
 Ptr fieldAddr, short fieldType, void *link), void *link)
{
 DoToField(“\pTDragger”, nil, bClass, link);
 DoToField(“\pfTEDocument”, 
 (Ptr) &fTEDocument, bObject, link);
 DoToField(“\pfTextView”, 
 (Ptr) &fTextView, bObject, link);
 DoToField(“\pfBox”, (Ptr) &fBox, bObject, link);
 DoToField(“\poldLocation”, 
 (Ptr) &oldLocation, bRect, link);
 DoToField(“\pnewLocation”, 
 (Ptr) &newLocation, bRect, link);
 DoToField(“\pfDelta”, (Ptr) &fDelta, bPoint, link);
 DoToField(“\pfFeedbackPicture”, 
 (Ptr) &fFeedbackPicture, bHandle, link);
 DoToField(“\pfPictureBounds”,
 (Ptr) &fPictureBounds, bRect, link);
 inherited::Fields(DoToField, link);
}
#endif

 

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BLUK 1.1 Device: iOS Universal Category: Games Price: $1.99, Version: 1.1 (iTunes) Description: ** ‘Upcoming Game of the Year’ Finalist at NGF Awards 2015 ** ** ‘Big Indie Pitch’ Nominee at Pocket Gamer Connects 2016... | Read more »
Six! Tips, tricks, and hints for beginne...
There's nothing pretentious about Six!, the latest release from Gram Games. As puzzlers go, it's so unassuming that it took me some time to even realize why it was called what it was. Somewhere, my high school geometry teacher is now sobbing... | Read more »
Mobius Final Fantasy: Multiplayer update...
Up until now, Mobius Final Fantasy has been about as single-player an experience as an RPG can be. Not only do you play solo, but you are literally one among a seemingly unending wave of faceless warriors on the road toward the same goal. [Read... | Read more »
Find out the story behind League of Ange...
If you’re looking for a new thrilling MMORPG to play with your friends then you’ll be excited to hear that there is a sequel to one of the most well known titles in the genre – namely League of Angels 2. With a brand new 3D engine offering... | Read more »
Naruto Shippuden: Ultimate Ninja Blazing...
I'm not sure if it's possible to say you are an anime fan but also never have seen one episode of Naruto. If it is, then I resemble that remark, and if not, I offer a hearty apology. [Read more] | Read more »
5 mobile games that let you explore spac...
No Man's Sky hasn't exactly turned out to be everything it was promised. Though its core concept of exploring an unimaginably vast universe of different planets is an intriguing one, the execution has left many PS4 and PC gamers feeling like they... | Read more »
Mummy madness in new action game Tomb He...
Hot on the tail of Bump Hero, ZPlay is giving gamers another reason to get screen bashing with a brand new release. Tomb Heroes is a challenging action game in which you battle enemies in various tombs around the world. You can select from nine... | Read more »
Siralim 2 (RPG / Roguelike) (Games)
Siralim 2 (RPG / Roguelike) 1.0 Device: iOS Universal Category: Games Price: $4.99, Version: 1.0 (iTunes) Description: Siralim 2 is an old-school monster catching RPG. Summon and customize hundreds of creatures to fight for you as... | Read more »
Clean Text (Productivity)
Clean Text 1.0 Device: iOS Universal Category: Productivity Price: $3.99, Version: 1.0 (iTunes) Description: | Read more »

Price Scanner via MacPrices.net

That Upgrade Itch; How Often Do You Upgrade Y...
I have a quandary to resolve as we head into what is typically a major Apple product upgrade season. My mid-2013 MacBook Air will be three years old and my iPad Air 2 will be two come late November.... Read more
Apple refurbished 12-inch iPad Pros available...
Apple has Certified Refurbished 12″ iPad Pros available for up to $160 off the cost of new iPads. An Apple one-year warranty is included with each model, and shipping is free: - 32GB 12″ iPad Pro... Read more
Tim Cook Posts Open Letter To The Apple Commu...
Apple Inc. CEO Tim Cook has posted an open letter commenting on the European Commission’s bizarre demand that Apple pay more than $14 billion in allegedly underpaid back taxes on its Irish... Read more
Streetwise Drivers Club App Now Features Open...
Streetwise Drivers Club, an app that rewards drivers with deals on everything from dining and gift cards to tires and insurance, has announced the launch of a new enhancement connecting app users... Read more
15-inch Retina MacBook Pros on sale for up to...
B&H Photo has 15″ Retina Apple MacBook Pros on sale for up to $200 off MSRP. Shipping is free, and B&H charges NY tax only: - 15″ 2.2GHz Retina MacBook Pro: $1799 $200 off MSRP - 15″ 2.5GHz... Read more
RESCUECOM 2016 Semi-Annual Computer Reliabili...
The beginning of a new school year is upon us again, in which students and parents have some very important choices to make, often including the purchase of a computer or tablet. Whether you are... Read more
VRS Design Damda Glide Series iPhone 7 and 7...
What makes the Damda Glide Series for the iPhone 7 and iPhone 7 Plus special? Case maker VRS Design says its Damda Glide Series is the first mobile case to incorporate a semi-automatic mechanism for... Read more
Apple refurbished iMacs available for up to $...
Apple has Certified Refurbished 2015 21″ & 27″ iMacs available for up to $350 off MSRP. Apple’s one-year warranty is standard, and shipping is free. The following models are available: - 21″ 3.... Read more
Clearance 2015 13-inch MacBook Airs available...
B&H Photo has clearance 2015 13″ MacBook Airs available for $350 off original MSRP. Shipping is free, and B&H charges NY sales tax only: - 13″ 1.6GHz/4GB/128GB MacBook Air (MJVE2LL/A): $829... Read more
Check Apple prices on any device with the iTr...
MacPrices is proud to offer readers a free iOS app (iPhones, iPads, & iPod touch) and Android app (Google Play and Amazon App Store) called iTracx, which allows you to glance at today’s lowest... Read more

Jobs Board

*Apple* Retail - Multiple Positions Norfolk,...
Job Description: Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
*Apple* Retail - Multiple Positions- Tampa,...
Job Description:SalesSpecialist - Retail Customer Service and SalesTransform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
SW Engineer *Apple* TV - Apple Inc. (United...
The Apple TV team is looking for excellent software engineers with experience in hardware, media management, media playback, content delivery and a passion for Read more
*Apple* Solutions Consultant - Apple (United...
Apple Solutions ConsultantJob Number: 51218534Pleasant Hill, California, United StatesPosted: Aug. 18, 2016Weekly Hours: 40.00Job SummaryAs an Apple Solutions Read more
*Apple* Solutions Consultant - Apple (United...
# Apple Solutions Consultant Job Number: 51218354 Fredericksburg, Virginia, United States Posted: Aug. 18, 2016 Weekly Hours: 40.00 **Job Summary** As an Apple Read more
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