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globals(3U) InterViews Reference Manual globals(3U)


globals - Unidraw global constants, types, instances, and functions.


#include <Unidraw/globals.h>


Several constants and types are used throughout the Unidraw library. It also provides global access to one-of-a-kind instances such as the unidraw object as well as shared graphics resources. Finally, there are several global functions for common data manipulations. All of these are declared one file for inclusion into other files where they are needed.


Size of standard character buffer.
Size of selection handles, in pixels.
String that delineates data boundaries in the ASCII representation that Catalog generates. Used for error checking.
The radius of a pin, used in its default graphical representation, in pixels.
Tolerance within which a hit on a graphical object will be detected, in pixels.


Enumerates orthogonal ways in which cursor movement may be constrained, usually during direct manipulation. Possible values include None, XFixed, YFixed, XYEqual, HorizOrVert, or Gravity.
Enumerates the three possible component mobilities: Fixed, Floating, or Undef (undefined).
Specifies two kinds of orientation: Portrait or Vertical (synonymous), and Landscape or Horizontal (synonymous).
Enumerates the three possible transmission methods for connectors: In, Out, or InOut.
Type for representing unique class names for catalog-managed objects.


The global unidraw and csolver objects. These and all other global instances are initialized automatically.
Predefined graphics resource objects. The None operation on psnonepat and psnonebr returns true.
A FullGraphic instance with its graphics state set to the global values listed above, excluding psnonepat and psnonebr.


Given two coordinate pairs (l, b) and (r, t), it checks whether l < r and b < t. If not, it swaps the values in the offending inequalities. This function is useful for ensuring that a rectangle is defined by its lower-left and upper-right vertices.

This function is convenient for extracting lines from a buffer with a minimum of additional math operations. Given a buffer of characters buf of length len, search for the first newline character (or the last character in the buffer) after the character at index beg; return the newline's position in end, the size of the run of text terminated by a newline (end + 1 - beg), and the index with which to begin a search for the next newline character (nextBeg).

Return the point (in floating point canvas coordinates) on a graphic corresponding to the given alignment. For example, to obtain the coordinates of the lower-left of a rectangle graphic, specify the graphic and a BottomLeft alignment.
Call the Reference operation on the given instance of a resource subclass if the pointer is non-nil.
Duplicate the given null-terminated string, creating a buffer of the appropriate size and returning the null-terminated result.


CSolver(3U), Catalog(3U), Graphic(3U), GraphicView(3U), Pin(3U), Resource(3I), Unidraw(3U), InterViews(3I), pspaint(3U)

30 July 1990 Unidraw