spek

commit acb3097f4b0ff78d861db8e0c036f75749a448f5
parent 71a8cccb4b7c8ad33b2c7b998716d03839f331b6
Author: Alexander Kojevnikov <alexander@kojevnikov.com>
Date:   Sun, 16 May 2010 21:26:28 +1000

Fix a crash when the window is very small

Diffstat:
M
src/spek-ruler.vala
 | 
2
+-
M
src/spek-spectrogram.vala
 | 
18
+++++++++++-------

2 files changed, 12 insertions(+), 8 deletions(-)
diff --git a/src/spek-ruler.vala b/src/spek-ruler.vala
@@ -1,4 +1,4 @@
-/* spek-spectrogram.vala
+/* spek-ruler.vala
  *
  * Copyright (C) 2010  Alexander Kojevnikov <alexander@kojevnikov.com>
  *
diff --git a/src/spek-spectrogram.vala b/src/spek-spectrogram.vala
@@ -58,17 +58,21 @@ namespace Spek {
 		}
 
 		private void start () {
+			if (this.source != null) {
+				this.source.stop ();
+			}
+
 			// The number of samples is the number of pixels available for the image.
 			// The number of bands is fixed, FFT results are very different for
 			// different values but we need some consistency.
-			this.image = new ImageSurface (Format.RGB24, allocation.width - 2 * PADDING, BANDS);
-
-			if (this.source != null) {
-				this.source.stop ();
+			int samples = allocation.width - 2 * PADDING;
+			if (samples > 0) {
+				image = new ImageSurface (Format.RGB24, samples, BANDS);
+				source = new Source (file_name, BANDS, samples, THRESHOLD, source_callback);
+			} else {
+				image = null;
+				source = null;
 			}
-			this.source = new Source (
-				file_name, image.get_height (), image.get_width (),
-				THRESHOLD, source_callback);
 			queue_draw ();
 		}