Apple Newton Utilities Guide de l'utilisateur télécharger pdf (Page 546)

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101

CHAPTER 13

Drawing and Graphics

13-20 Using the Drawing Interface

Importing Macintosh PICT Resources 13

The following information applies to the Mac OS version of NTK; the Windows

version differs. See the

Newton Toolkit User’s Guide for details.

A Macintosh PICT resource can be imported into the Newton in two ways: as a

bitmap or as a picture object. A Macintosh PICT resource is stored much more

compactly on the Newton as a picture object; however, it may be slower to draw

than a bitmap. The same Macintosh PICT resource may occupy much more space

when imported as a bitmap, but may draw signiﬁcantly faster. The method you

should use depends on whether you want to optimize for space or speed.

A Macintosh PICT resource is imported as a bitmap by using the slot editor for the

icon slot (an editor of the picture type). Alternatively, the resource can be

imported as a picture object by using the GetResource or GetNamedResource

compile-time functions available in NTK. In this case, you must use an

AfterScript slot to set the value of the icon slot to the picture object obtained

by one of these resource functions.

Note

The constant clIconView can also be used to indicate a

view of the

clPictureView class. These two constants

have identical values.

◆

Here is an example of a template deﬁning a view of the clPictureView class:

aPicture := {...

viewClass: clPictureView,

viewBounds: {left:0, top:75, right:150, bottom:175},

viewFlags: vVisible+vClickable,

icon: myPicture,

...}

Drawing Non-Default Fonts 13

You can draw a font other than the default font by putting the font speciﬁer style

frame close to the text shape so that another style frame won’t override it. Use

either

DrawShape or MakePict.

There are several places where it might seem reasonable to put the style frame with

the font speciﬁer.

DrawShape takes a style argument, so you could place it there:

:DrawShape(myText, {font: '{family: someFont,

face: 0, size: 9 }});

You can embed a style frame in an array of shapes:

:DrawShape ([{font: ...}, myText, shape ], nil);

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Apple Newton Utilities Guide de l'utilisateur Page 546

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