Use *Gui.{SelFgColor,SelBgColor} to set current view's color

- Use *Gui.{FgColor,BgColor} to set GUI's color.
- Use *Gui.{SelFgColor,SelBgColor} to set current view's color.
- Drop *Gui.ActiveColor and *View.ActiveColor.

_examples/active.go

@@ -65,7 +65,6 @@ func layout(g *gocui.Gui) error {
 		v.Title = "v2"
 		v.Wrap = true
 		v.Autoscroll = true
-		v.ActiveColor = gocui.ColorRed
 	}
 	if v, err := g.SetView("v3", 0, maxY/2-1, maxX/2-1, maxY-1); err != nil {
 		if err != gocui.ErrUnknownView {
@@ -74,7 +73,6 @@ func layout(g *gocui.Gui) error {
 		v.Title = "v3"
 		v.Wrap = true
 		v.Autoscroll = true
-		v.ActiveColor = gocui.ColorRed
 		fmt.Fprint(v, "Press TAB to change current view")
 	}
 	if v, err := g.SetView("v4", maxX/2, maxY/2, maxX-1, maxY-1); err != nil {
@@ -102,7 +100,7 @@ func main() {
 	}
 	defer g.Close()
 
-	g.ActiveColor = gocui.ColorGreen
+	g.SelFgColor = gocui.ColorGreen
 	g.SetLayout(layout)
 
 	if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {

_examples/demo.go

@@ -164,6 +164,8 @@ func layout(g *gocui.Gui) error {
 			return err
 		}
 		v.Highlight = true
+		v.SelBgColor = gocui.ColorGreen
+		v.SelFgColor = gocui.ColorBlack
 		fmt.Fprintln(v, "Item 1")
 		fmt.Fprintln(v, "Item 2")
 		fmt.Fprintln(v, "Item 3")
@@ -199,8 +201,6 @@ func main() {
 	if err := keybindings(g); err != nil {
 		log.Panicln(err)
 	}
-	g.SelBgColor = gocui.ColorGreen
-	g.SelFgColor = gocui.ColorBlack
 	g.Cursor = true
 
 	if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {

_examples/dynamic.go

@@ -28,7 +28,7 @@ func main() {
 	defer g.Close()
 
 	g.SetLayout(layout)
-	g.ActiveColor = gocui.ColorRed
+	g.SelFgColor = gocui.ColorRed
 
 	if err := initKeybindings(g); err != nil {
 		log.Panicln(err)

_examples/mouse.go

@@ -22,8 +22,6 @@ func main() {
 	if err := keybindings(g); err != nil {
 		log.Panicln(err)
 	}
-	g.SelBgColor = gocui.ColorGreen
-	g.SelFgColor = gocui.ColorBlack
 	g.Cursor = true
 	g.Mouse = true
 
@@ -38,6 +36,8 @@ func layout(g *gocui.Gui) error {
 			return err
 		}
 		v.Highlight = true
+		v.SelBgColor = gocui.ColorGreen
+		v.SelFgColor = gocui.ColorBlack
 		fmt.Fprintln(v, "Button 1 - line 1")
 		fmt.Fprintln(v, "Button 1 - line 2")
 		fmt.Fprintln(v, "Button 1 - line 3")
@@ -48,6 +48,8 @@ func layout(g *gocui.Gui) error {
 			return err
 		}
 		v.Highlight = true
+		v.SelBgColor = gocui.ColorGreen
+		v.SelFgColor = gocui.ColorBlack
 		fmt.Fprintln(v, "Button 2 - line 1")
 	}
 	return nil

gui.go

@@ -41,11 +41,8 @@ type Gui struct {
 	// colors of the GUI.
 	BgColor, FgColor Attribute
 
-	// ActiveColor allows to configure the color of the current view.
-	ActiveColor Attribute
-
-	// SelBgColor and SelFgColor are used to configure the background and
-	// foreground colors of the selected line, when it is highlighted.
+	// SelBgColor and SelFgColor allow to configure the background and foreground
+	// colors of the current view.
 	SelBgColor, SelFgColor Attribute
 
 	// If Cursor is true then the cursor is enabled.
@@ -80,7 +77,6 @@ func (g *Gui) Init() error {
 	g.maxX, g.maxY = termbox.Size()
 	g.BgColor, g.FgColor = ColorBlack, ColorWhite
 	g.SelBgColor, g.SelFgColor = ColorBlack, ColorWhite
-	g.ActiveColor = ColorWhite
 	g.Editor = DefaultEditor
 	return nil
 }
@@ -141,7 +137,6 @@ func (g *Gui) SetView(name string, x0, y0, x1, y1 int) (*View, error) {
 
 	v := newView(name, x0, y0, x1, y1)
 	v.BgColor, v.FgColor = g.BgColor, g.FgColor
-	v.ActiveColor = g.ActiveColor
 	v.SelBgColor, v.SelFgColor = g.SelBgColor, g.SelFgColor
 	g.views = append(g.views, v)
 	return v, ErrUnknownView
@@ -387,10 +382,13 @@ func (g *Gui) flush() error {
 	}
 	for _, v := range g.views {
 		if v.Frame {
-			bgColor := v.BgColor
-			fgColor := v.FgColor
-			if g.currentView != nil && v.name == g.currentView.name {
-				fgColor = v.ActiveColor
+			var fgColor, bgColor Attribute
+			if v == g.currentView {
+				fgColor = g.SelFgColor
+				bgColor = g.SelBgColor
+			} else {
+				fgColor = g.FgColor
+				bgColor = g.BgColor
 			}
 
 			if err := g.drawFrame(v, fgColor, bgColor); err != nil {
@@ -540,10 +538,13 @@ func (g *Gui) drawIntersections() error {
 			continue
 		}
 
-		bgColor := v.BgColor
-		fgColor := v.FgColor
-		if g.currentView != nil && v.name == g.currentView.name {
-			fgColor = v.ActiveColor
+		var fgColor, bgColor Attribute
+		if v == g.currentView {
+			fgColor = g.SelFgColor
+			bgColor = g.SelBgColor
+		} else {
+			fgColor = g.FgColor
+			bgColor = g.BgColor
 		}
 
 		if ch, ok := g.intersectionRune(v.x0, v.y0); ok {

view.go

@@ -29,9 +29,6 @@ type View struct {
 
 	ei *escapeInterpreter // used to decode ESC sequences on Write
 
-	// ActiveColor allows to configure the color of the current view.
-	ActiveColor Attribute
-
 	// BgColor and FgColor allow to configure the background and foreground
 	// colors of the View.
 	BgColor, FgColor Attribute