vb.net - 3 way check box (toggle) -
i have custom 'toggle' (using butterscotchtheme) , trying add 3rd option.
this how is: (cant post pictures due being new, here links pictures)
i third option. have checked theme code , done checkbox rules. , know tricheckbox thing, unsure how work. did research , unable figure out in situation.
here themes toggle code:
public class butterscotchtoggle : inherits control private _check boolean public property checked boolean return _check end set(byval value boolean) _check = value invalidate() end set end property sub new() mybase.new() setstyle(controlstyles.userpaint or controlstyles.resizeredraw or controlstyles.supportstransparentbackcolor, true) doublebuffered = true backcolor = color.transparent size = new size(80, 25) end sub protected overrides sub onclick(byval e eventargs) checked = not checked mybase.onclick(e) end sub protected overrides sub onpaint(byval e painteventargs) dim b bitmap = new bitmap(width, height) dim g graphics = graphics.fromimage(b) dim outerrect rectangle = new rectangle(0, 0, width - 1, height - 1) dim maininnerrect rectangle = new rectangle(7, 7, width - 15, height - 15) dim buttonrect new lineargradientbrush(outerrect, color.fromargb(100, 90, 80), color.fromargb(48, 43, 39), 90s) mybase.onpaint(e) g.clear(backcolor) g.smoothingmode = smoothingmode.highquality g.interpolationmode = interpolationmode.highqualitybicubic g.fillpath(new solidbrush(color.fromargb(40, 37, 33)), roundrect(outerrect, 5)) g.drawpath(new pen(color.fromargb(0, 0, 0)), roundrect(outerrect, 5)) g.fillpath(new solidbrush(color.fromargb(26, 25, 21)), roundrect(maininnerrect, 3)) g.drawpath(new pen(color.fromargb(0, 0, 0)), roundrect(maininnerrect, 3)) if checked g.fillpath(buttonrect, roundrect(new rectangle(3, 3, cint((width / 2) - 3), height - 7), 7)) g.drawstring("on", new font("segoe ui", 10, fontstyle.bold), new solidbrush(color.fromargb(246, 180, 12)), new rectangle(2, 2, cint((width / 2) - 1), height - 5), new stringformat() {.alignment = stringalignment.center, .linealignment = stringalignment.center}) else g.fillpath(buttonrect, roundrect(new rectangle(cint((width / 2) - 3), 3, cint((width / 2) - 3), height - 7), 7)) g.drawstring("off", new font("segoe ui", 10, fontstyle.bold), new solidbrush(color.fromargb(246, 180, 12)), new rectangle(cint((width / 2) - 2), 2, cint((width / 2) - 1), height - 5), new stringformat() {.alignment = stringalignment.center, .linealignment = stringalignment.center}) end if e.graphics.drawimage(b, new point(0, 0)) g.dispose() : b.dispose() end sub end class any appreciated!
theme downloaded butterscotch theme gdi+
you have change boolean property integer (or better, create enum):
private _check integer public property checked integer return _check end set(byval value integer) _check = value invalidate() end set end property change onclick behavior:
protected overrides sub onclick(byval e eventargs) if checked + 1 > 2 checked = 0 else checked += 1 end if mybase.onclick(e) end sub and adjust drawing accordingly (placing third option in middle i'm guessing):
select case checked case 0 g.fillpath(buttonrect, roundrect(new rectangle(cint((width / 2) - 3), 3, cint((width / 2) - 3), height - 7), 7)) g.drawstring("off", new font("segoe ui", 10, fontstyle.bold), new solidbrush(color.fromargb(246, 180, 12)), new rectangle(cint((width / 2) - 2), 2, cint((width / 2) - 1), height - 5), new stringformat() {.alignment = stringalignment.center, .linealignment = stringalignment.center}) case 1 g.fillpath(buttonrect, roundrect(new rectangle(3, 3, cint((width / 2) - 3), height - 7), 7)) g.drawstring("on", new font("segoe ui", 10, fontstyle.bold), new solidbrush(color.fromargb(246, 180, 12)), new rectangle(2, 2, cint((width / 2) - 1), height - 5), new stringformat() {.alignment = stringalignment.center, .linealignment = stringalignment.center}) case 2 g.fillpath(buttonrect, roundrect(new rectangle((width / 2) - (width / 4), 3, cint((width / 2) - 3), height - 7), 7)) g.drawstring("???", new font("segoe ui", 10, fontstyle.bold), new solidbrush(color.fromargb(246, 180, 12)), new rectangle((width / 2) - (width / 4), 2, cint((width / 2) - 1), height - 5), new stringformat() {.alignment = stringalignment.center, .linealignment = stringalignment.center}) end select 
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