func DrawAreaInit(client DrawAreaClient) (v DrawArea, err error) {
var area *gtk.DrawingArea
area, err = gtk.DrawingAreaNew()
if err != nil {
return
}
v = DrawArea{area, 0, 0, 0, 0}
v.shDraw, err = v.Connect("draw", drawCallback, client)
if err != nil {
return
}
v.shMotion, err = v.Connect("motion-notify-event", motionCallback, client)
if err != nil {
return
}
v.shButtonPress, err = v.Connect("button-press-event", buttonCallback, client)
if err != nil {
return
}
v.shButtonRelease, err = v.Connect("button-release-event", buttonCallback, client)
if err != nil {
return
}
v.SetEvents(int(gdk.POINTER_MOTION_MASK | gdk.BUTTON_PRESS_MASK | gdk.BUTTON_RELEASE_MASK))
return
}
func addGraphicalActions() {
r := state.v2result
side := r.SquareSide
cells := make([]int, 1+side*side)
areaSize := 4 + side*w.cellSize.GetValueAsInt()
tail := w.fieldBuf.GetEndIter()
for i := 0; i < len(r.Actions); i++ {
for k, cell := range cells {
if cell != cellEmpty && cell != cellOccupied {
cells[k]--
}
}
cells[r.Actions[i]] = cellCurrent
if i+1 < len(r.Actions) && r.Actions[i+1] < 0 {
i++
cells[-r.Actions[i]] = cellMerged
}
area, err := gtk.DrawingAreaNew()
e.Exit(err)
area.SetSizeRequest(areaSize, areaSize)
setStyle(area, "borderSolid")
areaCells := make([]int, len(cells))
copy(areaCells, cells)
area.Connect("draw", func(area *gtk.DrawingArea, cr *cairo.Context) {
drawTable(area, cr, side, areaCells)
})
w.field.AddChildAtAnchor(area, w.fieldBuf.CreateChildAnchor(tail))
}
}
func main() {
gtk.Init(nil)
// gui boilerplate
win, _ := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
da, _ := gtk.DrawingAreaNew()
win.Add(da)
win.SetTitle("Arrow keys")
win.Connect("destroy", gtk.MainQuit)
win.ShowAll()
// Data
unitSize := 20.0
x := 0.0
y := 0.0
keyMap := map[uint]func(){
KEY_LEFT: func() { x-- },
KEY_UP: func() { y-- },
KEY_RIGHT: func() { x++ },
KEY_DOWN: func() { y++ },
}
// Event handlers
da.Connect("draw", func(da *gtk.DrawingArea, cr *cairo.Context) {
cr.SetSourceRGB(0, 0, 0)
cr.Rectangle(x*unitSize, y*unitSize, unitSize, unitSize)
cr.Fill()
})
win.Connect("key-press-event", func(win *gtk.Window, ev *gdk.Event) {
keyEvent := &gdk.EventKey{ev}
if move, found := keyMap[keyEvent.KeyVal()]; found {
move()
win.QueueDraw()
}
})
gtk.Main()
}
// Initialize the game widgets
func (self *MainWindow) InitializeWidgets() {
self.BoardView, self.err = gtk.DrawingAreaNew()
self.MainArea, self.err = gtk.BoxNew(gtk.ORIENTATION_HORIZONTAL, 1)
self.ScoreArea, self.err = gtk.BoxNew(gtk.ORIENTATION_VERTICAL, 2)
self.BoardEventBox, self.err = gtk.EventBoxNew()
self.Scores, self.err = gtk.LabelNew("Scores:")
self.BlacksScore, self.err = gtk.LabelNew("Black pieces:")
self.RedsScore, self.err = gtk.LabelNew("Black pieces:")
self.BoardWidth = 640
self.BoardHeight = 480
self.BoardEventBox.Add(self.BoardView)
if self.err != nil {
log.Fatal("Failed to draw board")
}
self.BoardEventBox.AddEvents(int(gdk.BUTTON_PRESS_MASK))
self.BoardEventBox.Connect("button_press_event", self.interactBoard)
self.MainArea.PackStart(self.BoardEventBox, true, true, 10)
self.MainArea.Add(self.ScoreArea)
self.Scores.SetMarkup("<strong>%s</strong>")
self.Scores.SetJustify(gtk.JUSTIFY_CENTER)
self.ScoreArea.Add(self.Scores)
self.BlacksScore.SetJustify(gtk.JUSTIFY_LEFT)
self.RedsScore.SetJustify(gtk.JUSTIFY_LEFT)
self.ScoreArea.Add(self.BlacksScore)
self.ScoreArea.Add(self.RedsScore)
self.Window.Add(self.MainArea)
self.setBoardSize(8)
self.BoardView.Connect("draw", self.drawBoard)
self.Board.RenderText()
self.Window.SetTitle("Checkers")
}