Add Wrapping Flags to Input Fields

termbox_inputfield.go

@@ -13,6 +13,7 @@ type InputField struct {
 	cursor              int
 	fg, bg              termbox.Attribute
 	bordered            bool
+	wrap                bool
 }
 
 // CreateInputField creates an input field at x, y that is w by h
@@ -75,6 +76,16 @@ func (i *InputField) SetBordered(b bool) *InputField {
 	return i
 }
 
+// DoesWrap returns true or false if this input field wraps text
+func (i *InputField) DoesWrap() bool { return i.wrap }
+
+// SetWrap sets whether we wrap the text at width.
+// If 'wrap' is set, we automatically increase the height when we need to.
+func (i *InputField) SetWrap(b bool) *InputField {
+	i.wrap = b
+	return i
+}
+
 // HandleKeyPress accepts the termbox event and returns whether it was consumed
 func (i *InputField) HandleKeyPress(event termbox.Event) bool {
 	if event.Key == termbox.KeyEnter {
@@ -145,6 +156,30 @@ func (i *InputField) Draw() {
 	} else {
 		strPt1, strPt2, cursorRune = "", "", ' '
 	}
+	// Check if the value is longer than the width
+	if len(i.value) > i.width {
+		if i.wrap {
+			// If we're wrapping the text, figure out how that goes
+		} else {
+			// Not wrapping, so figure out what we need to trim
+			// We have i.width/2 space for each strPt
+			if len(strPt1) > i.width/2 {
+				if len(strPt2) > i.width/2 {
+					// Both sides are too long, center the cursor
+				} else {
+					// Just side 1 is too long, figure out how much we can show
+					tmp := i.width - 1
+					tmp -= len(strPt2)
+					strPt1 = strPt1[tmp:]
+				}
+			} else if len(strPt2) > i.width/2 {
+				// Just side 2 is too long, figure out how much we can show
+				tmp := i.width - 1
+				tmp -= len(strPt1)
+				strPt2 = strPt2[:tmp]
+			}
+		}
+	}
 	x, y := DrawStringAtPoint(strPt1, i.x+1, i.y+1, i.fg, i.bg)
 	termbox.SetCell(x, y, cursorRune, i.bg, i.fg)
 	DrawStringAtPoint(strPt2, x+1, y, i.fg, i.bg)

termbox_inputmodal.go

@@ -139,6 +139,12 @@ func (i *InputModal) SetValue(s string) *InputModal {
 	return i
 }
 
+// SetInputWrap sets whether the input field will wrap long text or not
+func (i *InputModal) SetInputWrap(b bool) *InputModal {
+	i.input.SetWrap(b)
+	return i
+}
+
 // Clear Resets all non-positional parameters of the modal
 func (i *InputModal) Clear() *InputModal {
 	i.title = ""