395 lines
10 KiB
Groff
395 lines
10 KiB
Groff
.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1994, 1996 X Consortium
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.\"
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.\" Permission is hereby granted, free of charge, to any person obtaining
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.\" a copy of this software and associated documentation files (the
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.\" "Software"), to deal in the Software without restriction, including
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.\" without limitation the rights to use, copy, modify, merge, publish,
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.\" distribute, sublicense, and/or sell copies of the Software, and to
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.\" permit persons to whom the Software is furnished to do so, subject to
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.\" the following conditions:
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.\"
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.\" The above copyright notice and this permission notice shall be included
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.\" in all copies or substantial portions of the Software.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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.\" IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
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.\" OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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.\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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.\" OTHER DEALINGS IN THE SOFTWARE.
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.\"
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.\" Except as contained in this notice, the name of the X Consortium shall
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.\" not be used in advertising or otherwise to promote the sale, use or
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.\" other dealings in this Software without prior written authorization
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.\" from the X Consortium.
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.\"
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.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991 by
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.\" Digital Equipment Corporation
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.\"
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.\" Portions Copyright \(co 1990, 1991 by
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.\" Tektronix, Inc.
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.\"
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.\" Permission to use, copy, modify and distribute this documentation for
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.\" any purpose and without fee is hereby granted, provided that the above
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.\" copyright notice appears in all copies and that both that copyright notice
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.\" and this permission notice appear in all copies, and that the names of
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.\" Digital and Tektronix not be used in in advertising or publicity pertaining
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.\" to this documentation without specific, written prior permission.
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.\" Digital and Tektronix makes no representations about the suitability
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.\" of this documentation for any purpose.
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.\" It is provided ``as is'' without express or implied warranty.
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.\"
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.\"
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.ds xT X Toolkit Intrinsics \- C Language Interface
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.ds xW Athena X Widgets \- C Language X Toolkit Interface
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.ds xL Xlib \- C Language X Interface
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.ds xC Inter-Client Communication Conventions Manual
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.na
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.de Ds
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.nf
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.\\$1D \\$2 \\$1
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.ft 1
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.de C{
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.\" the imagen conditional, 480,
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.\" may be changed to L if LB is too
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.\" heavy for your eyes...
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.\"
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.ie "\\*(.T"480" .ft L
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.el .ie "\\*(.T"202" .ft PO
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.ny0
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.TH XFillRectangle __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS"
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.SH NAME
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XFillRectangle, XFillRectangles, XFillPolygon, XFillArc, XFillArcs \- fill rectangles, polygons, or arcs
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.SH SYNTAX
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.HP
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int XFillRectangle\^(\^Display *\fIdisplay\fP\^, Drawable \fId\fP\^, GC
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\fIgc\fP\^, int \fIx\fP\^, int \fIy\fP\^, unsigned int \fIwidth\fP\^, unsigned
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int \fIheight\fP\^);
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.HP
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int XFillRectangles\^(\^Display *\fIdisplay\fP\^, Drawable \fId\fP\^, GC
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\fIgc\fP\^, XRectangle *\fIrectangles\fP\^, int \fInrectangles\fP\^);
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.HP
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int XFillPolygon\^(\^Display *\fIdisplay\fP\^, Drawable \fId\fP\^, GC
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\fIgc\fP\^, XPoint *\fIpoints\fP\^, int \fInpoints\fP\^, int \fIshape\fP\^,
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int \fImode\fP\^);
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.HP
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int XFillArc\^(\^Display *\fIdisplay\fP\^, Drawable \fId\fP\^, GC \fIgc\fP\^,
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int \fIx\fP\^, int \fIy\fP\^, unsigned int \fIwidth\fP\^, unsigned int
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\fIheight\fP\^, int \fIangle1\fP\^, int \fIangle2\fP\^);
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.HP
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int XFillArcs\^(\^Display *\fIdisplay\fP\^, Drawable \fId\fP\^, GC \fIgc\fP\^,
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XArc *\fIarcs\fP\^, int \fInarcs\fP\^);
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.SH ARGUMENTS
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.IP \fIangle1\fP 1i
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Specifies the start of the arc relative to the three-o'clock position
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from the center, in units of degrees * 64.
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.IP \fIangle2\fP 1i
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Specifies the path and extent of the arc relative to the start of the
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arc, in units of degrees * 64.
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.IP \fIarcs\fP 1i
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Specifies an array of arcs.
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.IP \fId\fP 1i
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Specifies the drawable.
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.IP \fIdisplay\fP 1i
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Specifies the connection to the X server.
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.IP \fIgc\fP 1i
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Specifies the GC.
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.IP \fImode\fP 1i
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Specifies the coordinate mode.
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You can pass
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.ZN CoordModeOrigin
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or
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.ZN CoordModePrevious .
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.IP \fInarcs\fP 1i
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Specifies the number of arcs in the array.
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.IP \fInpoints\fP 1i
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Specifies the number of points in the array.
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.IP \fInrectangles\fP 1i
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Specifies the number of rectangles in the array.
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.IP \fIpoints\fP 1i
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Specifies an array of points.
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.IP \fIrectangles\fP 1i
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Specifies an array of rectangles.
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.IP \fIshape\fP 1i
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Specifies a shape that helps the server to improve performance.
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You can pass
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.ZN Complex ,
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.ZN Convex ,
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or
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.ZN Nonconvex .
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.ds Wh , which are the dimensions of the rectangle to be filled \
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or the major and minor axes of the arc
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.IP \fIwidth\fP 1i
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.br
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.ns
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.IP \fIheight\fP 1i
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Specify the width and height\*(Wh.
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.ds Xy , which are relative to the origin of the drawable \
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and specify the upper-left corner of the rectangle
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.IP \fIx\fP 1i
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.br
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.ns
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.IP \fIy\fP 1i
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Specify the x and y coordinates\*(Xy.
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.SH DESCRIPTION
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The
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.ZN XFillRectangle
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and
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.ZN XFillRectangles
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functions fill the specified rectangle or rectangles
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as if a four-point
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.ZN FillPolygon
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protocol request were specified for each rectangle:
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.LP
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.Ds
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[x,y] [x+width,y] [x+width,y+height] [x,y+height]
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.De
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.LP
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Each function uses the x and y coordinates,
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width and height dimensions, and GC you specify.
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.LP
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.ZN XFillRectangles
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fills the rectangles in the order listed in the array.
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For any given rectangle,
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.ZN XFillRectangle
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and
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.ZN XFillRectangles
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do not draw a pixel more than once.
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If rectangles intersect, the intersecting pixels are
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drawn multiple times.
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.LP
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Both functions use these GC components:
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function, plane-mask, fill-style, subwindow-mode,
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clip-x-origin, clip-y-origin, and clip-mask.
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They also use these GC mode-dependent components:
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foreground, background, tile, stipple, tile-stipple-x-origin,
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and tile-stipple-y-origin.
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.LP
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.ZN XFillRectangle
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and
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.ZN XFillRectangles
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can generate
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.ZN BadDrawable ,
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.ZN BadGC ,
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and
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.ZN BadMatch
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errors.
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.LP
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.ZN XFillPolygon
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fills the region closed by the specified path.
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The path is closed
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automatically if the last point in the list does not coincide with the
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first point.
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.ZN XFillPolygon
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does not draw a pixel of the region more than once.
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.ZN CoordModeOrigin
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treats all coordinates as relative to the origin,
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and
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.ZN CoordModePrevious
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treats all coordinates after the first as relative to the previous point.
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.LP
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Depending on the specified shape, the following occurs:
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.IP \(bu 5
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If shape is
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.ZN Complex ,
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the path may self-intersect.
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Note that contiguous coincident points in the path are not treated
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as self-intersection.
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.IP \(bu 5
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If shape is
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.ZN Convex ,
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for every pair of points inside the polygon,
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the line segment connecting them does not intersect the path.
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If known by the client,
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specifying
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.ZN Convex
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can improve performance.
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If you specify
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.ZN Convex
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for a path that is not convex,
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the graphics results are undefined.
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.IP \(bu 5
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If shape is
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.ZN Nonconvex ,
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the path does not self-intersect, but the shape is not
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wholly convex.
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If known by the client,
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specifying
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.ZN Nonconvex
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instead of
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.ZN Complex
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may improve performance.
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If you specify
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.ZN Nonconvex
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for a self-intersecting path, the graphics results are undefined.
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.LP
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The fill-rule of the GC controls the filling behavior of
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self-intersecting polygons.
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.LP
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This function uses these GC components:
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function, plane-mask, fill-style, fill-rule, subwindow-mode, clip-x-origin,
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clip-y-origin, and clip-mask.
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It also uses these GC mode-dependent components:
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foreground, background, tile, stipple, tile-stipple-x-origin,
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and tile-stipple-y-origin.
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.LP
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.ZN XFillPolygon
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can generate
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.ZN BadDrawable ,
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.ZN BadGC ,
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.ZN BadMatch ,
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and
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.ZN BadValue
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errors.
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.LP
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For each arc,
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.ZN XFillArc
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or
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.ZN XFillArcs
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fills the region closed by the infinitely thin path
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described by the specified arc and, depending on the
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arc-mode specified in the GC, one or two line segments.
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For
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.ZN ArcChord ,
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the single line segment joining the endpoints of the arc is used.
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For
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.ZN ArcPieSlice ,
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the two line segments joining the endpoints of the arc with the center
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point are used.
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.ZN XFillArcs
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fills the arcs in the order listed in the array.
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For any given arc,
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.ZN XFillArc
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and
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.ZN XFillArcs
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do not draw a pixel more than once.
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If regions intersect,
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the intersecting pixels are drawn multiple times.
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.LP
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Both functions use these GC components:
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function, plane-mask, fill-style, arc-mode, subwindow-mode, clip-x-origin,
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clip-y-origin, and clip-mask.
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They also use these GC mode-dependent components:
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foreground, background, tile, stipple, tile-stipple-x-origin,
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and tile-stipple-y-origin.
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.LP
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.ZN XFillArc
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and
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.ZN XFillArcs
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can generate
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.ZN BadDrawable ,
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.ZN BadGC ,
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and
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.ZN BadMatch
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errors.
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.SH DIAGNOSTICS
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.TP 1i
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.ZN BadDrawable
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A value for a Drawable argument does not name a defined Window or Pixmap.
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.TP 1i
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.ZN BadGC
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A value for a GContext argument does not name a defined GContext.
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.TP 1i
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.ZN BadMatch
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An
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.ZN InputOnly
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window is used as a Drawable.
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.TP 1i
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.ZN BadMatch
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Some argument or pair of arguments has the correct type and range but fails
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to match in some other way required by the request.
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.TP 1i
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.ZN BadValue
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Some numeric value falls outside the range of values accepted by the request.
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Unless a specific range is specified for an argument, the full range defined
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by the argument's type is accepted. Any argument defined as a set of
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alternatives can generate this error.
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.SH "SEE ALSO"
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XDrawArc(__libmansuffix__),
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XDrawPoint(__libmansuffix__),
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XDrawRectangle(__libmansuffix__)
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.br
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\fI\*(xL\fP
|