diff --git a/checkbox.go b/checkbox.go index abab2b5..d7b3142 100644 --- a/checkbox.go +++ b/checkbox.go @@ -1,10 +1,7 @@ package tview import ( - "strings" - "github.com/gdamore/tcell/v2" - "github.com/rivo/uniseg" ) // Checkbox implements a simple box for boolean values which can be checked and @@ -27,16 +24,22 @@ type Checkbox struct { // the label text. labelWidth int - // The label color. - labelColor tcell.Color + // The label style. + labelStyle tcell.Style - // The background color of the input area. - fieldBackgroundColor tcell.Color + // The style of the unchecked checkbox. + uncheckedStyle tcell.Style - // The text color of the input area. - fieldTextColor tcell.Color + // The style of the checked checkbox. + checkedStyle tcell.Style - // The string use to display a checked box. + // Teh style of the checkbox when it is currently focused. + focusStyle tcell.Style + + // The string used to display an unchecked box. + uncheckedString string + + // The string used to display a checked box. checkedString string // An optional function which is called when the user changes the checked @@ -56,11 +59,13 @@ type Checkbox struct { // NewCheckbox returns a new input field. func NewCheckbox() *Checkbox { return &Checkbox{ - Box: NewBox(), - labelColor: Styles.SecondaryTextColor, - fieldBackgroundColor: Styles.ContrastBackgroundColor, - fieldTextColor: Styles.PrimaryTextColor, - checkedString: "X", + Box: NewBox(), + labelStyle: tcell.StyleDefault.Foreground(Styles.SecondaryTextColor), + uncheckedStyle: tcell.StyleDefault.Background(Styles.ContrastBackgroundColor).Foreground(Styles.PrimaryTextColor), + checkedStyle: tcell.StyleDefault.Background(Styles.ContrastBackgroundColor).Foreground(Styles.PrimaryTextColor), + focusStyle: tcell.StyleDefault.Background(Styles.PrimaryTextColor).Foreground(Styles.ContrastBackgroundColor), + uncheckedString: " ", + checkedString: "X", } } @@ -101,36 +106,76 @@ func (c *Checkbox) SetLabelWidth(width int) *Checkbox { // SetLabelColor sets the color of the label. func (c *Checkbox) SetLabelColor(color tcell.Color) *Checkbox { - c.labelColor = color + c.labelStyle = c.labelStyle.Foreground(color) + return c +} + +// SetLabelStyle sets the style of the label. +func (c *Checkbox) SetLabelStyle(style tcell.Style) *Checkbox { + c.labelStyle = style return c } // SetFieldBackgroundColor sets the background color of the input area. func (c *Checkbox) SetFieldBackgroundColor(color tcell.Color) *Checkbox { - c.fieldBackgroundColor = color + c.uncheckedStyle = c.uncheckedStyle.Background(color) + c.checkedStyle = c.checkedStyle.Background(color) + c.focusStyle = c.focusStyle.Foreground(color) return c } // SetFieldTextColor sets the text color of the input area. func (c *Checkbox) SetFieldTextColor(color tcell.Color) *Checkbox { - c.fieldTextColor = color + c.uncheckedStyle = c.uncheckedStyle.Foreground(color) + c.checkedStyle = c.checkedStyle.Foreground(color) + c.focusStyle = c.focusStyle.Background(color) + return c +} + +// SetUncheckedStyle sets the style of the unchecked checkbox. +func (c *Checkbox) SetUncheckedStyle(style tcell.Style) *Checkbox { + c.uncheckedStyle = style + return c +} + +// SetCheckedStyle sets the style of the checked checkbox. +func (c *Checkbox) SetCheckedStyle(style tcell.Style) *Checkbox { + c.checkedStyle = style + return c +} + +// SetActivatedStyle sets the style of the checkbox when it is currently +// focused. +func (c *Checkbox) SetActivatedStyle(style tcell.Style) *Checkbox { + c.focusStyle = style return c } // SetCheckedString sets the string to be displayed when the checkbox is -// checked (defaults to "X"). +// checked (defaults to "X"). The string may contain color tags (consider +// adapting the checkbox's various styles accordingly). See [Escape] in +// case you want to display square brackets. func (c *Checkbox) SetCheckedString(checked string) *Checkbox { c.checkedString = checked return c } +// SetUncheckedString sets the string to be displayed when the checkbox is +// not checked (defaults to the empty space " "). The string may contain color +// tags (consider adapting the checkbox's various styles accordingly). See +// [Escape] in case you want to display square brackets. +func (c *Checkbox) SetUncheckedString(unchecked string) *Checkbox { + c.uncheckedString = unchecked + return c +} + // SetFormAttributes sets attributes shared by all form items. func (c *Checkbox) SetFormAttributes(labelWidth int, labelColor, bgColor, fieldTextColor, fieldBgColor tcell.Color) FormItem { c.labelWidth = labelWidth - c.labelColor = labelColor + c.SetLabelColor(labelColor) c.backgroundColor = bgColor - c.fieldTextColor = fieldTextColor - c.fieldBackgroundColor = fieldBgColor + c.SetFieldTextColor(fieldTextColor) + c.SetFieldBackgroundColor(fieldBgColor) return c } @@ -202,33 +247,35 @@ func (c *Checkbox) Draw(screen tcell.Screen) { } // Draw label. + _, labelBg, _ := c.labelStyle.Decompose() if c.labelWidth > 0 { labelWidth := c.labelWidth if labelWidth > width { labelWidth = width } - Print(screen, c.label, x, y, labelWidth, AlignLeft, c.labelColor) + printWithStyle(screen, c.label, x, y, 0, labelWidth, AlignLeft, c.labelStyle, labelBg == tcell.ColorDefault) x += labelWidth + width -= labelWidth } else { - _, drawnWidth := Print(screen, c.label, x, y, width, AlignLeft, c.labelColor) + _, _, drawnWidth := printWithStyle(screen, c.label, x, y, 0, width, AlignLeft, c.labelStyle, labelBg == tcell.ColorDefault) x += drawnWidth + width -= drawnWidth } // Draw checkbox. - fieldBackgroundColor := c.fieldBackgroundColor + str := c.uncheckedString + style := c.uncheckedStyle + if c.checked { + str = c.checkedString + style = c.checkedStyle + } if c.disabled { - fieldBackgroundColor = c.backgroundColor + style = style.Background(c.backgroundColor) } - fieldStyle := tcell.StyleDefault.Background(fieldBackgroundColor).Foreground(c.fieldTextColor) if c.HasFocus() { - fieldStyle = fieldStyle.Background(c.fieldTextColor).Foreground(fieldBackgroundColor) + style = c.focusStyle } - checkboxWidth := uniseg.StringWidth(c.checkedString) - checkedString := c.checkedString - if !c.checked { - checkedString = strings.Repeat(" ", checkboxWidth) - } - printWithStyle(screen, checkedString, x, y, 0, checkboxWidth, AlignLeft, fieldStyle, false) + printWithStyle(screen, str, x, y, 0, width, AlignLeft, style, c.disabled) } // InputHandler returns the handler for this primitive.