diff options
Diffstat (limited to 'examples/shapes/main.go')
| -rw-r--r-- | examples/shapes/main.go | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/examples/shapes/main.go b/examples/shapes/main.go index 0816e61..4025448 100644 --- a/examples/shapes/main.go +++ b/examples/shapes/main.go @@ -29,8 +29,8 @@ func main() { xproto.CreateWindow(X, screen.RootDepth, wid, screen.Root, 0, 0, 180, 160, 8, // X, Y, width, height, *border width* xproto.WindowClassInputOutput, screen.RootVisual, - xproto.CwBackPixel | xproto.CwEventMask, - []uint32{ screen.WhitePixel, xproto.EventMaskStructureNotify | xproto.EventMaskExposure }) + xproto.CwBackPixel|xproto.CwEventMask, + []uint32{screen.WhitePixel, xproto.EventMaskStructureNotify | xproto.EventMaskExposure}) // Map the window on the screen xproto.MapWindow(X, wid) @@ -54,7 +54,7 @@ func main() { // which only has the foreground (color) value set to black: foreground, _ := xproto.NewGcontextId(X) mask := uint32(xproto.GcForeground) - values := []uint32{ screen.BlackPixel } + values := []uint32{screen.BlackPixel} xproto.CreateGC(X, foreground, draw, mask, values) // It is possible to set the foreground value to something different. @@ -64,13 +64,13 @@ func main() { // https://x.org/releases/X11R7.5/doc/libxcb/tutorial/#usecolor red, _ := xproto.NewGcontextId(X) mask = uint32(xproto.GcForeground) - values = []uint32{ 0xff0000 } + values = []uint32{0xff0000} xproto.CreateGC(X, red, draw, mask, values) // We'll create another graphics context that draws thick lines: thick, _ := xproto.NewGcontextId(X) mask = uint32(xproto.GcLineWidth) - values = []uint32{ 10 } + values = []uint32{10} xproto.CreateGC(X, thick, draw, mask, values) // It is even possible to set multiple properties at once. @@ -80,7 +80,7 @@ func main() { // LineWidth comes second. blue, _ := xproto.NewGcontextId(X) mask = uint32(xproto.GcForeground | xproto.GcLineWidth) - values = []uint32{ 0x0000ff, 4 } + values = []uint32{0x0000ff, 4} xproto.CreateGC(X, blue, draw, mask, values) // Properties of an already created gc can also be changed @@ -89,7 +89,7 @@ func main() { // and cap (line corner) style of our foreground context, // to smooth out the polyline: mask = uint32(xproto.GcLineWidth | xproto.GcCapStyle) - values = []uint32{ 3, xproto.CapStyleRound } + values = []uint32{3, xproto.CapStyleRound} xproto.ChangeGC(X, foreground, mask, values) points := []xproto.Point{ @@ -104,9 +104,9 @@ func main() { // while every other point is placed relative to the one before it. polyline := []xproto.Point{ {X: 50, Y: 10}, - {X: 5, Y: 20}, // move 5 to the right, 20 down + {X: 5, Y: 20}, // move 5 to the right, 20 down {X: 25, Y: -20}, // move 25 to the right, 20 up - notice how this point is level again with the first point - {X: 10, Y: 10}, // move 10 to the right, 10 down + {X: 10, Y: 10}, // move 10 to the right, 10 down } segments := []xproto.Segment{ @@ -151,8 +151,9 @@ func main() { // which means that every point is placed relatively to the previous. // If we were to use `xproto.CoordModeOrigin` instead, // we could specify each point absolutely on the screen. - // It is also possible to `xproto.CoordModePrevious` for drawing points - // which + // It is also possible to use `xproto.CoordModePrevious` for drawing *points* + // which means that each point would be specified relative to the previous one, + // just as we did with the polyline. xproto.PolyLine(X, xproto.CoordModePrevious, draw, foreground, polyline) // Draw two lines in red. |