GUI component interaction: Difference between revisions
Added Wren
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@ The end.</lang>
=={{header|Wren}}==
{{libheader|DOME}}
{{libheader|Wren-polygon}}
<lang ecmascript>import "graphics" for Canvas, Color
import "input" for Mouse, Keyboard
import "dome" for Window
import "random" for Random
import "./polygon" for Polygon
var Rand = Random.new()
class Button {
construct new(x, y, w, h, legend, c, oc, lc) {
var vertices = [[x, y], [x+w, y], [x+w, y+h], [x, y+h]]
_rect = Polygon.quick(vertices)
_x = x
_y = y
_w = w
_h = h
_legend = legend
_c = c
_oc = oc
_lc = lc
}
draw() {
_rect.drawfill(_c)
_rect.draw(_oc)
var l = Canvas.getPrintArea(_legend)
var lx = ((_w - l.x)/2).truncate
lx = (lx > 0) ? _x + lx : _x + 1
var ly = ((_h - l.y)/2).truncate
ly = (ly > 0) ? _y + ly : _y + 1
Canvas.print(_legend, lx, ly, _lc)
}
justClicked { Mouse["left"].justPressed && _rect.contains(Mouse.position.x, Mouse.position.y) }
}
class TextBox {
construct new(x, y, w, h, label, c, oc, lc) {
var vertices = [[x, y], [x+w, y], [x+w, y+h], [x, y+h]]
_rect = Polygon.quick(vertices)
_x = x
_y = y
_w = w
_h = h
_label = label
_c = c
_oc = oc
_lc = lc
_text = ""
}
text { _text }
text=(t) { _text = t }
draw() {
_rect.drawfill(_c)
_rect.draw(_oc)
var l = Canvas.getPrintArea(_label).x
var lx = _x - l - 7
if (lx < 1) {
lx = 1
_label = _label[0..._x]
}
Canvas.print(_label, lx, _y, _lc)
Canvas.getPrintArea(_label).x
Canvas.print(_text, _x + 3, _y + 1, Color.black)
}
}
class GUIComponentInteraction {
construct new() {
Window.title = "GUI component interaction"
_btnIncrement = Button.new(60, 40, 80, 80, "Increment", Color.red, Color.blue, Color.white)
_btnRandom = Button.new(180, 40, 80, 80, "Random", Color.green, Color.blue, Color.white)
_txtValue = TextBox.new(140, 160, 80, 8, "Value", Color.white, Color.blue, Color.white)
_txtValue.text = "0"
Keyboard.handleText = true
_waiting = false
}
init() {
drawControls()
}
update() {
if (_waiting) {
if (Keyboard["Y"].justPressed) {
var rn = Rand.int(1000) // max 999 say
_txtValue.text = rn.toString
_waiting = false
} else if (Keyboard["N"].justPressed) {
_waiting = false
}
} else if (_btnIncrement.justClicked) {
var number = Num.fromString(_txtValue.text) + 1
_txtValue.text = number.toString
} else if (_btnRandom.justClicked) {
Canvas.print("Reset to a random number y/n?", 60, 200, Color.white)
_waiting = true
} else if ("0123456789".any { |d| Keyboard[d].justPressed }) {
if (_txtValue.text != "0") {
_txtValue.text = _txtValue.text + Keyboard.text
} else {
_txtValue.text = Keyboard.text
}
}
}
draw(alpha) {
if (!_waiting) drawControls()
}
drawControls() {
Canvas.cls()
_btnIncrement.draw()
_btnRandom.draw()
_txtValue.draw()
}
}
var Game = GUIComponentInteraction.new()</lang>
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