adding an asterisk to modified, unsaved presets

flags for unsaved changes saved in project files

6 files changed, 57 insertions, 21 deletions

diff --git a/components/__base__.py b/components/__base__.py
index 3ccb5dc..b32c120 100644
--- a/components/__base__.py
+++ b/components/__base__.py
@@ -1,9 +1,15 @@
-from PyQt4 import QtGui
+from PyQt4 import QtGui, QtCore
 
+class Component(QtCore.QObject):
+    '''A base class for components to inherit from'''
 
-class Component:
-    def __init__(self):
+    # modified = QtCore.pyqtSignal(int, bool)
+
+    def __init__(self, moduleIndex, compPos):
+        super().__init__()
         self.currentPreset = None
+        self.moduleIndex = moduleIndex
+        self.compPos = compPos
 
     def __str__(self):
         return self.__doc__
@@ -13,12 +19,27 @@ class Component:
         return 1
 
     def cancel(self):
-        # make sure your component responds to these variables in frameRender()
+        # please stop any lengthy process in response to this variable
         self.canceled = True
 
     def reset(self):
         self.canceled = False
 
+    def update(self):
+        self.modified.emit(self.compPos, True)
+        # use super().update() then read your widget values here
+
+    def loadPreset(self, presetDict, presetName):
+        '''Children should take (presetDict, presetName=None) as args'''
+
+        # Use super().loadPreset(presetDict, presetName)
+        # Then update your widgets using the preset dict
+        self.currentPreset = presetName \
+            if presetName != None else presetDict['preset']
+
+    def savePreset(self):
+        return {}
+
     def preFrameRender(self, **kwargs):
         for var, value in kwargs.items():
             exec('self.%s = value' % var)
@@ -62,7 +83,7 @@ class Component:
         return page
 
     def update(self):
-        # read widget values
+        super().update()
         self.parent.drawPreview()
 
     def previewRender(self, previewWorker):
@@ -77,13 +98,6 @@ class Component:
         image = Image.new("RGBA", (width, height), (0,0,0,0))
         return image
 
-    def loadPreset(self, presetDict, presetName=None):
-        self.currentPreset = presetName
-        # update widgets using a preset dict
-
-    def savePreset(self):
-        return {}
-
     def cancel(self):
         self.canceled = True
 
diff --git a/components/color.py b/components/color.py
index 11c1b19..b6105c8 100644
--- a/components/color.py
+++ b/components/color.py
@@ -7,6 +7,9 @@ from . import __base__
 
 class Component(__base__.Component):
     '''Color'''
+
+    modified = QtCore.pyqtSignal(int, bool)
+
     def widget(self, parent):
         self.parent = parent
         page = uic.loadUi(os.path.join(
@@ -45,6 +48,7 @@ class Component(__base__.Component):
         return page
 
     def update(self):
+        super().update()
         self.color1 = self.RGBFromString(self.page.lineEdit_color1.text())
         self.color2 = self.RGBFromString(self.page.lineEdit_color2.text())
         self.x = self.page.spinBox_x.value()
@@ -70,7 +74,8 @@ class Component(__base__.Component):
         return Image.new("RGBA", (width, height), (r, g, b, 255))
 
     def loadPreset(self, pr, presetName=None):
-        self.currentPreset = presetName if presetName else pr['preset']
+        super().loadPreset(pr, presetName)
+
         self.page.lineEdit_color1.setText('%s,%s,%s' % pr['color1'])
         self.page.lineEdit_color2.setText('%s,%s,%s' % pr['color2'])
 
diff --git a/components/image.py b/components/image.py
index 441e0e1..ed5f243 100644
--- a/components/image.py
+++ b/components/image.py
@@ -6,6 +6,9 @@ from . import __base__
 
 class Component(__base__.Component):
     '''Image'''
+
+    modified = QtCore.pyqtSignal(int, bool)
+
     def widget(self, parent):
         self.parent = parent
         self.settings = parent.settings
@@ -22,6 +25,7 @@ class Component(__base__.Component):
         return page
 
     def update(self):
+        super().update()
         self.imagePath = self.page.lineEdit_image.text()
         self.parent.drawPreview()
 
@@ -49,7 +53,7 @@ class Component(__base__.Component):
         return frame
 
     def loadPreset(self, pr, presetName=None):
-        self.currentPreset = presetName if presetName else pr['preset']
+        super().loadPreset(pr, presetName)
         self.page.lineEdit_image.setText(pr['image'])
 
     def savePreset(self):
diff --git a/components/original.py b/components/original.py
index 7873f43..f3f578d 100644
--- a/components/original.py
+++ b/components/original.py
@@ -1,9 +1,8 @@
 import numpy
 from PIL import Image, ImageDraw
-from PyQt4 import uic, QtGui
+from PyQt4 import uic, QtGui, QtCore
 from PyQt4.QtGui import QColor
 import os
-import random
 from . import __base__
 import time
 from copy import copy
@@ -11,6 +10,9 @@ from copy import copy
 
 class Component(__base__.Component):
     '''Original Audio Visualization'''
+
+    modified = QtCore.pyqtSignal(int, bool)
+
     def widget(self, parent):
         self.parent = parent
         self.visColor = (255, 255, 255)
@@ -33,12 +35,14 @@ class Component(__base__.Component):
         return page
 
     def update(self):
+        super().update()
         self.layout = self.page.comboBox_visLayout.currentIndex()
         self.visColor = self.RGBFromString(self.page.lineEdit_visColor.text())
         self.parent.drawPreview()
 
     def loadPreset(self, pr, presetName=None):
-        self.currentPreset = presetName if presetName else pr['preset']
+        super().loadPreset(pr, presetName)
+
         self.page.lineEdit_visColor.setText('%s,%s,%s' % pr['visColor'])
         btnStyle = "QPushButton { background-color : %s; outline: none; }" \
             % QColor(*pr['visColor']).name()
diff --git a/components/text.py b/components/text.py
index e8fb3d5..a40e2a9 100644
--- a/components/text.py
+++ b/components/text.py
@@ -9,8 +9,11 @@ from . import __base__
 
 class Component(__base__.Component):
     '''Title Text'''
-    def __init__(self):
-        super().__init__()
+
+    modified = QtCore.pyqtSignal(int, bool)
+
+    def __init__(self, *args):
+        super().__init__(*args)
         self.titleFont = QFont()
 
     def widget(self, parent):
@@ -53,6 +56,7 @@ class Component(__base__.Component):
         return page
 
     def update(self):
+        super().update()
         self.title = self.page.lineEdit_title.text()
         self.alignment = self.page.comboBox_textAlign.currentIndex()
         self.titleFont = self.page.fontComboBox_titleFont.currentFont()
@@ -79,7 +83,8 @@ class Component(__base__.Component):
         return x, self.yPosition
 
     def loadPreset(self, pr, presetName=None):
-        self.currentPreset = presetName if presetName else pr['preset']
+        super().loadPreset(pr, presetName)
+
         self.page.lineEdit_title.setText(pr['title'])
         font = QFont()
         font.fromString(pr['titleFont'])
diff --git a/components/video.py b/components/video.py
index bd1bf96..ff06329 100644
--- a/components/video.py
+++ b/components/video.py
@@ -86,6 +86,9 @@ class Video:
 
 class Component(__base__.Component):
     '''Video'''
+
+    modified = QtCore.pyqtSignal(int, bool)
+
     def widget(self, parent):
         self.parent = parent
         self.settings = parent.settings
@@ -106,6 +109,7 @@ class Component(__base__.Component):
         return page
 
     def update(self):
+        super().update()
         self.videoPath = self.page.lineEdit_video.text()
         self.loopVideo = self.page.checkBox_loop.isChecked()
         self.parent.drawPreview()
@@ -136,7 +140,7 @@ class Component(__base__.Component):
         return self.video.frame(frameNo)
 
     def loadPreset(self, pr, presetName=None):
-        self.currentPreset = presetName if presetName else pr['preset']
+        super().loadPreset(pr, presetName)
         self.page.lineEdit_video.setText(pr['video'])
         self.page.checkBox_loop.setChecked(pr['loop'])