Support different types of gutter messages

cmd/micro/bindings.go

@@ -554,7 +554,6 @@ func (v *View) InsertTab() bool {
 
 // Save the buffer to disk
 func (v *View) Save() bool {
-	v.GutterMessage(4, "Hello", GutterInfo)
 	// If this is an empty buffer, ask for a filename
 	if v.buf.path == "" {
 		filename, canceled := messenger.Prompt("Filename: ")

cmd/micro/messenger.go

@@ -56,6 +56,9 @@ type Messenger struct {
 
 	// We have to keep track of the cursor for prompting
 	cursorx int
+
+	// Is the current message a message from the gutter
+	gutterMessage bool
 }
 
 // Message sends a message to the user
@@ -209,14 +212,19 @@ func (m *Messenger) Display() {
 	}
 }
 
-const (
-	GutterInfo = iota
-	GutterWarning
-	GutterError
-)
-
+// A GutterMessage is a message displayed on the side of the editor
 type GutterMessage struct {
 	lineNum int
 	msg     string
 	kind    int
 }
+
+// These are the different types of messages
+const (
+	// GutterInfo represents a simple info message
+	GutterInfo = iota
+	// GutterWarning represents a compiler warning
+	GutterWarning
+	// GutterError represents a compiler error
+	GutterError
+)

cmd/micro/view.go

@@ -361,6 +361,7 @@ func (v *View) HandleEvent(event tcell.Event) {
 	}
 }
 
+// GutterMessage creates a message in this view's gutter
 func (v *View) GutterMessage(lineN int, msg string, kind int) {
 	gutterMsg := GutterMessage{
 		lineNum: lineN,
@@ -409,12 +410,28 @@ func (v *View) DisplayView() {
 			for _, msg := range v.messages {
 				if msg.lineNum == lineN+v.topline {
 					msgOnLine = true
-					screen.SetContent(x, lineN, '>', nil, tcell.StyleDefault)
+					gutterStyle := tcell.StyleDefault
+					switch msg.kind {
+					case GutterInfo:
+						if style, ok := colorscheme["gutter-info"]; ok {
+							gutterStyle = style
+						}
+					case GutterWarning:
+						if style, ok := colorscheme["gutter-warning"]; ok {
+							gutterStyle = style
+						}
+					case GutterError:
+						if style, ok := colorscheme["gutter-error"]; ok {
+							gutterStyle = style
+						}
+					}
+					screen.SetContent(x, lineN, '>', nil, gutterStyle)
 					x++
-					screen.SetContent(x, lineN, '>', nil, tcell.StyleDefault)
+					screen.SetContent(x, lineN, '>', nil, gutterStyle)
 					x++
 					if v.cursor.y == lineN {
 						messenger.Message(msg.msg)
+						messenger.gutterMessage = true
 					}
 				}
 			}
@@ -423,8 +440,9 @@ func (v *View) DisplayView() {
 				x++
 				screen.SetContent(x, lineN, ' ', nil, tcell.StyleDefault)
 				x++
-				if v.cursor.y == lineN {
+				if v.cursor.y == lineN && messenger.gutterMessage {
 					messenger.Reset()
+					messenger.gutterMessage = false
 				}
 			}
 		}

runtime/colorschemes/default.micro

@@ -8,4 +8,6 @@ color-link special "magenta"
 color-link ignore "default"
 color-link error ",brightred"
 color-link todo ",brightyellow"
-color-link line-number "yellow"
+color-link line-number "yellow"
+color-link gutter-error ",red"
+color-link gutter-warning "red"

runtime/colorschemes/solarized-tc.micro

@@ -11,3 +11,5 @@ color-link error "bold #CB4B16,#002833"
 color-link todo "bold #D33682,#002833"
 color-link statusline "#003541,#839496"
 color-link line-number "#586E75,#003541"
+color-link gutter-error "#003541,#CB4B16"
+color-link gutter-warning "#CB4B16,#002833"

runtime/colorschemes/solarized.micro

@@ -10,3 +10,5 @@ color-link error "bold brightred"
 color-link todo "bold magenta"
 color-link statusline "black,brightblue"
 color-link line-number "brightgreen,black"
+color-link gutter-error "black,brightred"
+color-link gutter-warning "brightred,default"