Added Checkbox Control

termbox_checkbox.go

@@ -0,0 +1,144 @@
+package termboxUtil
+
+import termbox "github.com/nsf/termbox-go"
+
+type Checkbox struct {
+	id                  string
+	title               string
+	isChecked           bool
+	x, y, width, height int
+	fg, bg              termbox.Attribute
+	activeFg, activeBg  termbox.Attribute
+	bordered            bool
+	tabSkip             bool
+	active              bool
+}
+
+func CreateCheckbox(lbl string, x, y, w, h int, fg, bg termbox.Attribute) *Checkbox {
+	c := Checkbox{
+		x: x, y: y, width: w, height: h,
+		fg: fg, bg: bg, activeFg: fg, activeBg: bg,
+	}
+	return &c
+}
+
+func (c *Checkbox) SetTitle(title string)                 { c.title = title }
+func (c *Checkbox) SetActiveFgColor(fg termbox.Attribute) { c.activeFg = fg }
+func (c *Checkbox) SetActiveBgColor(bg termbox.Attribute) { c.activeBg = bg }
+func (c *Checkbox) SetActive(a bool)                      { c.active = a }
+func (c *Checkbox) IsActive() bool                        { return c.active }
+
+// GetID returns this control's ID
+func (c *Checkbox) GetID() string { return c.id }
+
+// SetID sets this control's ID
+func (c *Checkbox) SetID(newID string) {
+	c.id = newID
+}
+
+// GetX returns the x position of the input field
+func (c *Checkbox) GetX() int { return c.x }
+
+// SetX sets the x position of the input field
+func (c *Checkbox) SetX(x int) {
+	c.x = x
+}
+
+// GetY returns the y position of the input field
+func (c *Checkbox) GetY() int { return c.y }
+
+// SetY sets the y position of the input field
+func (c *Checkbox) SetY(y int) {
+	c.y = y
+}
+
+// GetWidth returns the current width of the input field
+func (c *Checkbox) GetWidth() int { return c.width }
+
+// SetWidth sets the current width of the input field
+func (c *Checkbox) SetWidth(w int) {
+	c.width = w
+}
+
+// GetHeight returns the current height of the input field
+func (c *Checkbox) GetHeight() int { return c.height }
+
+// SetHeight sets the current height of the input field
+func (c *Checkbox) SetHeight(h int) {
+	c.height = h
+}
+
+// GetFgColor returns the foreground color
+func (c *Checkbox) GetFgColor() termbox.Attribute { return c.fg }
+
+// SetFgColor sets the foreground color
+func (c *Checkbox) SetFgColor(fg termbox.Attribute) {
+	c.fg = fg
+}
+
+// GetBgColor returns the background color
+func (c *Checkbox) GetBgColor() termbox.Attribute { return c.bg }
+
+// SetBgColor sets the current background color
+func (c *Checkbox) SetBgColor(bg termbox.Attribute) {
+	c.bg = bg
+}
+
+// IsBordered returns true or false if this input field has a border
+func (c *Checkbox) IsBordered() bool { return c.bordered }
+
+// SetBordered sets whether we render a border around the input field
+func (c *Checkbox) SetBordered(b bool) {
+	c.bordered = b
+}
+
+// IsTabSkipped returns whether this modal has it's tabskip flag set
+func (c *Checkbox) IsTabSkipped() bool {
+	return c.tabSkip
+}
+
+// SetTabSkip sets the tabskip flag for this control
+func (c *Checkbox) SetTabSkip(b bool) {
+	c.tabSkip = b
+}
+
+// HandleEvent accepts the termbox event and returns whether it was consumed
+func (c *Checkbox) HandleEvent(event termbox.Event) bool {
+	if event.Ch == 0 {
+		switch event.Key {
+		case termbox.KeySpace, termbox.KeyEnter:
+			c.isChecked = !c.isChecked
+			return true
+		}
+	}
+	return false
+}
+
+func (c *Checkbox) Draw() {
+	x, y, _, w := c.x, c.y, c.height, c.width
+	useFg, useBg := c.fg, c.bg
+	if c.active {
+		useFg, useBg = c.activeFg, c.activeBg
+	}
+	if c.bordered {
+		DrawBorder(c.x, c.y, c.x+c.width, c.y+c.height, useFg, useBg)
+		x++
+		w = w - 2
+	}
+
+	if c.isChecked {
+		DrawStringAtPoint("[X]", x, y, useFg, useBg)
+	} else {
+		DrawStringAtPoint("[ ]", x, y, useFg, useBg)
+	}
+	x = x + 3
+	w = w - 3
+
+	if c.title != "" {
+		wrk := c.title
+		if len(wrk) > w {
+			wrk = wrk[:w]
+		}
+		DrawStringAtPoint(wrk, x, y, useFg, useBg)
+	}
+}