XFillRectangle(3X) XFillRectangle(3X)NAME XFillArc, XFillArcs, XFillPolygon, XFillRectangle, XFillRectangles - fill arcs, rectangles, and polygons SYNOPSIS XFillArc (display, d, gc, x, y, width, height, angle1, angle2) Display *display; Drawable d; GC gc; int x,y; unsigned int width, height; int angle1,angle2; XFillArcs (display, d, gc, arcs, narcs) Display *display; Drawable d; GC gc; XArc *arcs; int narcs; XFillPolygon (display, d, gc, points, npoints, shape, mode) Display *display; Drawable d; GC gc; XPoint *points; int npoints; int shape; int mode; XFillRectangle (display, d, gc, x, y, width, height) Display *display; Drawable d; GC gc; int x,y; unsigned int width, height; XFillRectangles (display, d, gc, rectangles, nrectangles) Display *display; Drawable d; GC gc; XRectangle *rectangles; int nrectangles; DESCRIPTION The XFillRectangle and XFillRectangles functions fill the specified rectangle or rectangles as if a four-point XFillPolygon were specified for each rectangle: [x,y] [x+width,y] [x+width,y+height] [x,y+height] November, 1990 1
XFillRectangle(3X) XFillRectangle(3X)Each function uses the x, y, width, height, and graphic con- text that you specify. XFillRectangles fills the rectangles in the order listed in the array. For any given rectangle, XFillRectangle and XFillRectangles do not draw a pixel more than once. If rec- tangles intersect, the intersecting pixels are drawn multi- ple times. Both functions use these graphic context components: func- tion, plane-mask, fill-style, subwindow-mode, clip-x-origin, clip-y-origin, and clip-mask. They also use these mode- dependent graphic context components: foreground, back- ground, tile, stipple, tile-stipple-x-origin, and tile- stipple-y-origin. XFillPolygon fills the region closed by the specified path. The path is closed automatically if the last point in the list does not coincide with the first point. XFillPolygon does not draw a pixel of the region more than once. Coord- ModeOrigin treats all coordinates as relative to the origin, and CoordModePrevious treats all coordinates after the first as relative to the previous point. Depending on the specified shape, the following occurs: If shape is Complex, the path may self-intersect. Note that contiguous coincident points in the path are not treated as self-intersection. If shape is Convex, for every pair of points inside the polygon, the line segment connecting them does not in- tersect the path. If known by the client, specifying Convex can improve performance. If you specify Convex for a path that is not convex, the graphics results are undefined. If shape is Nonconvex, the path does not self- intersect, but the shape is not wholly convex. If known by the client, specifying Nonconvex instead of Complex may improve performance. If you specify Nonconvex for a self-intersecting path, the graphics results are unde- fined. The fill_rule of the graphic context controls the filling behavior of self-intersecting polygons. This function uses these graphic context components: func- tion, plane_mask, fill_style, fill_rule, subwindow_mode, clip_x_origin, clip_y_origin, and clip_mask. It also uses these mode-dependent graphic context components: fore- ground, background, tile, stipple, ts_x_origin, and 2 November, 1990
XFillRectangle(3X) XFillRectangle(3X)ts_y_origin. For each arc, XFillArc or XFillArcs fills the region closed by the infinitely thin path described by the specified arc and, depending on the arc_mode specified in the graphic con- text, one or two line segments. For ArcChord, the single line segment joining the endpoints of the arc is used. For ArcPieSlice, the two line segments joining the endpoints of the arc with the center point are used. XFillArcs fills the arcs in the order listed in the array. For any given arc, XFillArc and XFillArcs do not draw a pixel more than once. If regions intersect, the intersecting pixels are drawn mul- tiple times. Both functions use these graphic context components: func- tion, plane_mask, fill_style, arc_mode, subwindow_mode, clip_x_origin, clip_y_origin, and clip_mask. They also use these mode-dependent graphic context components: foreground, background, tile, stipple, ts_x_origin, and ts_y_origin. The XFillPolygon function fills a polygon area in the speci- fied drawable. The XFillArc function fills a single arc in the specified drawable, and XFillArcs fills multiple arcs in the specified drawable. Arguments These functions accept the following arguments: angle1 Specifies the start of the arc relative to the three o'clock position from the center, in units of de- grees * 64. angle2 Specifies the path and extent of the arc relative to the start of the arc, in units of degrees * 64. arcs Specifies a pointer to an array of arcs. d Specifies the drawable. display Specifies the connection to the X server. gc Specifies the graphic context. mode Specifies the coordinate mode. CoordModeOrigin treats all coordinates as related to the origin, and CoordModePrevious treats all coordinates after the first as relative to the previous point. narcs Specifies the number of arcs in the array. npoints Specifies the number of points in the array. November, 1990 3
XFillRectangle(3X) XFillRectangle(3X)nrectangles Specifies the number of rectangles in the array. points Specifies a pointer to an array of points. rectangles Specifies a pointer to an array of rectangles. shape Specifies an argument that helps the server improve performance. One of the following constants can be passed: Complex, Convex, or Nonconvex. width, height Specify the width and height, which are the dimen- sions of the rectangle to be filled or the major and minor axes of the arc. x, y Specify the x and y coordinates, which are relative to the origin of the drawable and specify the upper-left corner of the rectangle. ERRORS BadDrawable A value for a Drawable argument does not name a de- fined window or pixel map. BadGC A value for a GC argument does not name a defined graphic context. BadMatch An InputOnly window is used as a drawable; or, an argument or pair of arguments has the correct type and range but fails to match in some other required way. BadValue A numeric value falls outside the range of values accepted by the request. Unless a range is speci- fied for an argument, the full range defined by the argument's type is accepted. Any argument defined as a set of alternatives can generate this error. XFillRectangle and XFillRectangles can generate BadDrawable, BadGC, and BadMatch errors. The XFillPolygon function can generate BadDrawable, BadGC, BadMatch, and BadValue errors. The XFillArc and XFillArcs functions can generate BadDrawable, BadGC, and BadMatch errors. 4 November, 1990
XFillRectangle(3X) XFillRectangle(3X)SEE ALSO XCreateGC(3X) XDrawArc(3X), XDrawPoint(3X), XDrawRectangle(3X)Xlib - C Language InterfaceNovember, 1990 5