Drawing Primitives functions for drawing points, lines, arcs, and text. These functions provide support for drawing points, lines, arcs and text onto what are called 'drawables'. Drawables, as the name suggests, are things which support drawing onto them, and are either #GdkWindow or #GdkPixmap objects. Many of the drawing operations take a #GdkGC argument, which represents a graphics context. This #GdkGC contains a number of drawing attributes such as foreground color, background color and line width, and is used to reduce the number of arguments needed for each drawing operation. See the Graphics Contexts section for more information. Used to specify the way in which drawing operations are performed. See gdk_gc_set_fill(). @GDK_SOLID: graphics are drawn in a solid color, usually the foreground color of the #GdkGC. @GDK_TILED: graphics are drawn using a tile pixmap. See gdk_gc_set_tile(). @GDK_STIPPLED: graphics are drawn with a stipple (a pixmap with a depth of 1). Bits set in the stipple are drawn in the foreground color. Bits not set in the stipple are left as they are. See gdk_gc_set_stipple(). @GDK_OPAQUE_STIPPLED: graphics are drawn with a stipple, as in @GDK_STIPPLED, except that the bits not set in the stipple are drawn in the background color instead of being left as they are. See gdk_gc_set_stipple(). The method for determining which pixels are included in a region, when creating a #GdkRegion from a polygon. The fill rule is only relevant for polygons which overlap themselves. @GDK_EVEN_ODD_RULE: areas which are overlapped an odd number of times are included in the region, while areas overlapped an even number of times are not. @GDK_WINDING_RULE: overlapping areas are always included. Used to specify how lines are drawn. See gdk_gc_set_line_attributes(). @GDK_LINE_SOLID: lines are drawn in a solid color, the foreground color. @GDK_LINE_ON_OFF_DASH: dashed lines are drawn, with the pixels between the dashes left as they are. The #GdkCapStyle is applied to each end of the dashes. @GDK_LINE_DOUBLE_DASH: dashed lines are drawn, alternating between the foreground and background colors. The %GDK_CAP_BUTT style is used where dashes and gaps meet. Used to specify how the ends of lines and dashes are drawn. See gdk_gc_set_line_attributes(). @GDK_CAP_NOT_LAST: this is equivalent to %GDK_CAP_BUTT, except that for a line width of 0 the final endpoint is not drawn. @GDK_CAP_BUTT: the ends of the line are square with no projection beyond the endpoint. @GDK_CAP_ROUND: the ends of the line are rounded using a circular arc centered on the endpoint. This is equivalent to %GDK_CAP_BUTT when the line width is 0. @GDK_CAP_PROJECTING: the ends of the line are square, but project beyond the endpoint to a distance of half the line width. This is equivalent to %GDK_CAP_BUTT when the line width is 0. Used to specify how the the joins between lines are drawn. See gdk_gc_set_line_attributes(). @GDK_JOIN_MITER: the ends of the lines are extended to meet at a point. If the angle between the lines is less than 11 degrees, %GDK_JOIN_BEVEL is used instead. @GDK_JOIN_ROUND: the ends of the lines are rounded with a circular arc centered on the joinpoint, with a diameter equal to the line width. @GDK_JOIN_BEVEL: the lines have %GDK_CAP_BUTT cap styles, with the triangular notch filled. Draws a point, using the foreground color and other attributes of the #GdkGC. @drawable: a #GdkDrawable (a #GdkWindow or a #GdkPixmap). @gc: a #GdkGC. @x: the x coordinate of the point. @y: the y coordinate of the point. Draws a line, using the foreground color and other attributes of the #GdkGC. @drawable: a #GdkDrawable (a #GdkWindow or a #GdkPixmap). @gc: a #GdkGC. @x1: the x coordinate of the start point. @y1: the y coordinate of the start point. @x2: the x coordinate of the end point. @y2: the y coordinate of the end point. Draws a rectangular outline or filled rectangle, using the foreground color and other attributes of the #GdkGC. A rectangle drawn filled is 1 pixel smaller in both dimensions than a rectangle outlined. Calling gdk_draw_rectangle (window, gc, TRUE, 0, 0, 20, 20) results in a filled rectangle 20 pixels wide and 20 pixels high. Calling gdk_draw_rectangle (window, gc, FALSE, 0, 0, 20, 20) results in an outlined rectangle with corners at (0, 0), (0, 20), (20, 20), and (20, 0), which makes it 21 pixels wide and 21 pixels high. @drawable: a #GdkDrawable (a #GdkWindow or a #GdkPixmap). @gc: a #GdkGC. @filled: TRUE if the rectangle should be filled. @x: the x coordinate of the left edge of the rectangle. @y: the y coordinate of the top edge of the rectangle. @width: the width of the rectangle. @height: the height of the rectangle. Draws an arc or a filled 'pie slice'. The arc is defined by the bounding rectangle of the entire ellipse, and the start and end angles of the part of the ellipse to be drawn. @drawable: a #GdkDrawable (a #GdkWindow or a #GdkPixmap). @gc: a #GdkGC. @filled: TRUE if the arc should be filled, producing a 'pie slice'. @x: the x coordinate of the left edge of the bounding rectangle. @y: the y coordinate of the top edge of the bounding rectangle. @width: the width of the bounding rectangle. @height: the height of the bounding rectangle. @angle1: the start angle of the arc, relative to the 3 o'clock position, counter-clockwise, in 1/64ths of a degree. @angle2: the end angle of the arc, relative to @angle1, in 1/64ths of a degree. Draws an outlined or filled polygon. @drawable: a #GdkDrawable (a #GdkWindow or a #GdkPixmap). @gc: a #GdkGC. @filled: TRUE if the polygon should be filled. The polygon is closed automatically, connecting the last point to the first point if necessary. @points: an array of #GdkPoint structures specifying the points making up the polygon. @npoints: the number of points. Draws a string of characters in the given font or fontset. @drawable: a #GdkDrawable (a #GdkWindow or a #GdkPixmap). @font: a #GdkFont. @gc: a #GdkGC. @x: the x coordinate of the left edge of the text. @y: the y coordinate of the baseline of the text. @string: the string of characters to draw. Draws a number of characters in the given font or fontset. @drawable: a #GdkDrawable (a #GdkWindow or a #GdkPixmap). @font: a #GdkFont. @gc: a #GdkGC. @x: the x coordinate of the left edge of the text. @y: the y coordinate of the baseline of the text. @text: the characters to draw. @text_length: the number of characters of @text to draw. Draws a number of wide characters using the given font of fontset. If the font is a 1-byte font, the string is converted into 1-byte characters (discarding the high bytes) before output. @drawable: a #GdkDrawable (a #GdkWindow or a #GdkPixmap). @font: a #GdkFont. @gc: a #GdkGC. @x: the x coordinate of the left edge of the text. @y: the y coordinate of the baseline of the text. @text: the wide characters to draw. @text_length: the number of characters to draw. Draws a pixmap, or a part of a pixmap, onto another drawable. @drawable: a #GdkDrawable (a #GdkWindow or a #GdkPixmap). @gc: a #GdkGC. @src: the source #GdkPixmap to draw. @xsrc: the left edge of the source rectangle within @src. @ysrc: the top of the source rectangle within @src. @xdest: the x coordinate of the destination within @drawable. @ydest: the y coordinate of the destination within @drawable. @width: the width of the area to be copied, or -1 to make the area extend to the right edge of the source pixmap. @height: the height of the area to be copied, or -1 to make the area extend to the bottom edge of the source pixmap. @drawable: a #GdkDrawable (a #GdkWindow or a #GdkPixmap). @gc: @src: @xsrc: @ysrc: @xdest: @ydest: @width: @height: @drawable: a #GdkDrawable (a #GdkWindow or a #GdkPixmap). @gc: @image: @xsrc: @ysrc: @xdest: @ydest: @width: @height: Draws a number of points, using the foreground color and other attributes of the #GdkGC. @drawable: a #GdkDrawable (a #GdkWindow or a #GdkPixmap). @gc: a #GdkGC. @points: an array of #GdkPoint structures. @npoints: the number of points to be drawn. @drawable: a #GdkDrawable (a #GdkWindow or a #GdkPixmap). @gc: @segs: @nsegs: @x1: @y1: @x2: @y2: Draws a series of lines connecting the given points. The way in which joins between lines are draw is determined by the #GdkCapStyle value in the #GdkGC. This can be set with gdk_gc_set_line_attributes(). @drawable: a #GdkDrawable (a #GdkWindow or a #GdkPixmap). @gc: a #GdkGC. @points: an array of #GdkPoint structures specifying the endpoints of the lines. @npoints: the number of endpoints.