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// Animate triggers the application to redraw every 50ms | |
func Animate(app *tview.Application) { | |
globalAnimationMutex.Lock() | |
defer globalAnimationMutex.Unlock() | |
for { | |
app.QueueUpdateDraw(func() {}) | |
time.Sleep(50 * time.Millisecond) | |
} | |
} |
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// GetCurrentFrame returns the current frame the GIF is on | |
func (g *GifView) GetCurrentFrame() int { | |
// If no duration, we're on frame 0 | |
if g.totalDuration == 0 { | |
return 0 | |
} | |
// Mod allows us to continuously loop | |
dur := time.Since(g.startTime) % g.totalDuration | |
for i, d := range g.delay { | |
dur -= d | |
if dur < 0 { | |
return i | |
} | |
} | |
return 0 | |
} |
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func (g *GifView) Draw(screen tcell.Screen) { | |
g.Lock() | |
defer g.Unlock() | |
currentFrame := g.GetCurrentFrame() | |
frame := strings.Split(g.frames[currentFrame], "\n") | |
x, y, w, _ := g.GetInnerRect() | |
for i, line := range frame { | |
tview.Print(screen, line, x, y+i, w, tview.AlignLeft, tcell.ColorWhite) | |
} | |
} |
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package main | |
import ( | |
"fmt" | |
"github.com/rivo/tview" | |
"github.com/stjohnjohnson/gifview" | |
) | |
func main() { | |
// Create the application | |
a := tview.NewApplication() | |
// Create our dancing banana gif | |
img, err := gifview.FromImagePath("banana.gif") | |
if err != nil { | |
panic(fmt.Errorf("Unable to load gif: %v", err)) | |
} | |
// Set the banana as our root layer | |
a.SetRoot(img, true) | |
// Trigger animation | |
go gifview.Animate(a) | |
// Start the application | |
if err := a.Run(); err != nil { | |
panic(err) | |
} | |
} |
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file, err := os.Open("correct.gif") | |
if err != nil { | |
return fmt.Errorf("Unable to open file: %v", err) | |
} | |
defer file.Close() | |
image, err := gif.DecodeAll(file) | |
if err != nil { | |
return fmt.Errorf("Unable to decode GIF: %v", err) | |
} | |
textView := tview.NewTextView() | |
textView.SetDynamicColors(true) | |
for i, img := range image.Image { | |
txt, err := pixelview.FromImage(img) | |
if err != nil { | |
return fmt.Errorf("Unable to parse frame: %v", err) | |
} | |
// Draw the image | |
textView.SetText(txt) | |
// Sleep the delay of the frame | |
time.Sleep(image.Delay[i] * time.Millisecond) | |
} |
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file, err := os.Open("correct.gif") | |
if err != nil { | |
return fmt.Errorf("Unable to open file: %v", err) | |
} | |
defer file.Close() | |
image, err := gif.DecodeAll(file) | |
if err != nil { | |
return fmt.Errorf("Unable to decode GIF: %v", err) | |
} | |
for i, img := range image.Image { | |
// Attempt to print the image | |
fmt.Printf("Frame %d: %v", i, img) | |
// Sleep the delay of the frame | |
time.Sleep(image.Delay[i] * time.Millisecond) | |
} |
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