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Style setter: separate Push() and Pop() methods #555

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Merged
merged 1 commit into from
Nov 11, 2022
Merged

Style setter: separate Push() and Pop() methods #555

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31 changes: 26 additions & 5 deletions StyleSetter.go
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,9 @@ type StyleSetter struct {
font *FontInfo
disabled bool
layout Layout

// set by imgui.PushFont inside ss.Push() method
isFontPushed bool
}

// Style initializes a style setter (see examples/setstyle).
Expand Down Expand Up @@ -87,10 +90,25 @@ func (ss *StyleSetter) Build() {
return
}

ss.Push()

ss.layout.Build()

ss.Pop()
}

// Push allows to manually activate Styles written inside of StyleSetter
// it works like imgui.PushXXX() stuff, but for group of style variables,
// just like StyleSetter.
// NOTE: DO NOT ORGET to call ss.Pop() at the end of styled layout, because
// else you'll get ImGui exception!
func (ss *StyleSetter) Push() {
// Push colors
for k, v := range ss.colors {
imgui.PushStyleColor(imgui.StyleColorID(k), ToVec4Color(v))
}

// push style vars
for k, v := range ss.styles {
if k.IsVec2() {
var value imgui.Vec2
Expand All @@ -115,18 +133,21 @@ func (ss *StyleSetter) Build() {
}
}

// push font
if ss.font != nil {
if PushFont(ss.font) {
defer PopFont()
}
ss.isFontPushed = PushFont(ss.font)
}

imgui.BeginDisabled(ss.disabled)
}

ss.layout.Build()
// Pop
func (ss *StyleSetter) Pop() {
if ss.isFontPushed {
imgui.PopFont()
}

imgui.EndDisabled()

imgui.PopStyleColorV(len(ss.colors))
imgui.PopStyleVarV(len(ss.styles))
}