From ffc5966042e1490930396dd541e4c9497a6b7a73 Mon Sep 17 00:00:00 2001
From: tassaron
Date: Sat, 17 Jun 2017 11:15:24 -0400
Subject: ask to save changes before changing current project

also limited total # of components to 50
---
 core.py | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

(limited to 'core.py')

diff --git a/core.py b/core.py
index dcea783..e4a7a6c 100644
--- a/core.py
+++ b/core.py
@@ -79,6 +79,8 @@ class Core():
     def insertComponent(self, compPos, moduleIndex):
         if compPos < 0:
             compPos = len(self.selectedComponents) -1
+        if len(self.selectedComponents) > 50:
+            return None
 
         component = self.modules[moduleIndex].Component(
             moduleIndex, compPos)
@@ -100,6 +102,10 @@ class Core():
         self.selectedComponents.pop(i)
         self.componentListChanged()
 
+    def clearComponents(self):
+        self.selectedComponents = list()
+        self.componentListChanged()
+
     def updateComponent(self, i):
         # print('updating %s' % self.selectedComponents[i])
         self.selectedComponents[i].update()
@@ -164,24 +170,27 @@ class Core():
                             clearThis = True
 
                     # insert component into the loader
-                    loader.insertComponent(
+                    i = loader.insertComponent(
                         self.moduleIndexFor(name), -1)
+                    if i == None:
+                        break
+
                     try:
                         if 'preset' in preset and preset['preset'] != None:
-                            self.selectedComponents[-1].loadPreset(
+                            self.selectedComponents[i].loadPreset(
                                 preset
                             )
                         else:
-                            self.selectedComponents[-1].loadPreset(
+                            self.selectedComponents[i].loadPreset(
                                 preset,
                                 preset['preset']
                             )
                     except KeyError as e:
                         print('%s missing value %s' %
-                            (self.selectedComponents[-1], e))
+                            (self.selectedComponents[i], e))
 
                     if clearThis:
-                        self.clearPreset(-1, loader)
+                        self.clearPreset(i, loader)
             except:
                 errcode = 1
                 data = sys.exc_info()
-- 
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