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drawlist.image

create drawlist BOOPSI objects

FUNCTIONS

DRAWLIST_GetClass

SUPERCLASS

imageclass

REQUIRES

None.

DESCRIPTION

This image class can create custom scaled glyphs via a "drawlist". The drawlist is an array of drawing directives such as lines, areafills, etc. All coordinates are based on an imaginary grid of a user specified size, then ScalerDiv() is used to scale these coordinates to the desired image size to be rendered. This is a lower level class utilized by glyph.image, if you create some interesting drawlist, please consider passing them on to others, or to us for inclusion.

ATTRIBUTES

DRAWLIST_Directives (struct DrawList *)
An array of drawlist directive structures are passed to specify the vectors and render operation. The last entry must be DLST_END!

struct DrawList
{
WORD dl_Directive;
WORD dl_X1, dl_Y1;
WORD dl_X2, dl_Y2;
WORD dl_Pen;
};

The following directives are supported;

DLST_END
End the directive list.

DLST_LINE
Render a line from dl_x1,dl_y1 to dl_x2,dl_y2

DLST_RECT
Cause a RectFill() of size dl_x1,dl_y1,dl_x2,dl_y2

DLST_LINEPAT
Set the line pattern to value held in dl_Pen

DLST_FILLPAT
Set the fill pattern to value held in dl_Pen

DLST_LINESIZE
Set the drawlist line thickness via dl_Pen

DLST_AMOVE
AreaMove() using dl_x1,dl_y1

DLST_ADRAW
AreaDraw() using dl_x1,dl_y1

DLST_AFILL
Cause the AreaFill() operation

DLST_FILL
Flood() an area.

DLST_ELLIPSE
AreaEllipse() (incorrectly implemented until V47)

DLST_CIRCLE
AreaCircle() (incorrectly implemented until V47)

DLST_BEVELBOX
currently unsupported (alpha function removed)

DLST_ARC
currently unsupported

DLST_START
currently unsupported

DLST_BOUNDS
currently unsupported

Defaults to NULL.

Applicability is (OM_NEW, OM_SET, OM_GET)

DRAWLIST_RefHeight (WORD)
Reference height of the drawlist imagary grid.

Applicability is (OM_NEW, OM_SET, OM_GET)

DRAWLIST_RefWidth (WORD)
Reference width of the drawlist imagary grid.

Applicability is (OM_NEW, OM_SET, OM_GET)