From 1240236527f942c1bf320f185850156ee2bfc9c4 Mon Sep 17 00:00:00 2001
From: Paul McCarthy <pauld.mccarthy@gmail.com>
Date: Thu, 21 May 2015 14:43:54 +0100
Subject: [PATCH] HistogramPanel shows a message if non-volumetric overlay is
selected
---
fsl/data/strings.py | 2 ++
fsl/fslview/views/histogrampanel.py | 15 ++++++++++++++-
2 files changed, 16 insertions(+), 1 deletion(-)
diff --git a/fsl/data/strings.py b/fsl/data/strings.py
index ee69c6d36..51b826498 100644
--- a/fsl/data/strings.py
+++ b/fsl/data/strings.py
@@ -54,6 +54,8 @@ messages = TypeDict({
'saving the screenshot. Try '
'calling render directly with '
'this command: \n{}',
+
+ 'HistogramPanel.noData' : 'Selected overlay has no data',
})
diff --git a/fsl/fslview/views/histogrampanel.py b/fsl/fslview/views/histogrampanel.py
index 624d6bed6..6970306f4 100644
--- a/fsl/fslview/views/histogrampanel.py
+++ b/fsl/fslview/views/histogrampanel.py
@@ -71,7 +71,7 @@ class HistogramPanel(plotpanel.PlotPanel):
self._overlayList.addListener(
'overlays',
self._name,
- self._selectedOveralyChanged)
+ self._selectedOverlayChanged)
self._displayCtx.addListener(
'selectedOverlay',
self._name,
@@ -160,6 +160,7 @@ class HistogramPanel(plotpanel.PlotPanel):
overlay = self._displayCtx.getSelectedOverlay()
if not isinstance(overlay, fslimage.Image):
+ self._displayMessage(strings.messages[self, 'noData'])
return
minval = float(overlay.data.min())
@@ -210,6 +211,18 @@ class HistogramPanel(plotpanel.PlotPanel):
self._domainHighlight = None
self.dataRange.x = newRange
+
+ def _displayMessage(self, msg):
+
+ axis = self.getAxis()
+ axis.clear()
+ axis.set_xlim((0.0, 1.0))
+ axis.set_ylim((0.0, 1.0))
+ axis.text(0.5, 0.5, msg, ha='center', va='center')
+
+ self.getCanvas().draw()
+ self.Refresh()
+
def _drawPlot(self, *a):
--
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