attribtext now with colors, and on existing textviews. added filter_subviews

Author: jsbain

apphack.py

@@ -3,7 +3,7 @@
 
 from objc_util import *
 import ui,console
-
+import weakref
 
 w=ObjCClass('UIApplication').sharedApplication().keyWindow()
 main_view=w.rootViewController().view()
@@ -25,7 +25,12 @@ def get_toolbar(view):
 execbtn.image=ui.Image.named('iow:ios7_play_32')
 execbtn_obj=ObjCInstance(execbtn)
 tb.addSubview_(execbtn_obj)
-
+def make_cleanup(obj):
+   def cleanup():
+      if hasattr(obj,'removeFromSuperview' ):
+         obj.removeFromSuperview()
+   return cleanup
+weakref.ref(execbtn_obj,make_cleanup(execbtn_obj))
 def run_script(sender):
    import editor
    execfile(editor.get_path())

attrib_textview_typing.py

@@ -2,33 +2,77 @@
 # coding: utf-8
 # experiments with attributed strings
 
-from objc import *
+from objc_util import *
 import ctypes
 
 NSMutableAttributedString=ObjCClass('NSMutableAttributedString')
+UIColor=ObjCClass('UIColor')
 NSFontAttributeName=ns('NSFont')
+NSForegroundColorAttributeName=ns('NSColor')
 UIFont=ObjCClass('UIFont')
 
 
 import ui
+
+
+
+def buildAttributes():
+   #   d=NSMutableDictionary.new()
+   d={
+      NSForegroundColorAttributeName:UIColor.colorWithRed_green_blue_alpha_(tv.R,tv.G,tv.B,1.),
+      NSFontAttributeName:UIFont.systemFontOfSize_(tv.fontsize)
+}
+   tvobj.setTypingAttributes_(d)
+   desclbl.text='Font size={} R={:0.2f}, G={:0.2f}, B={:0.2f}'.format(tv.fontsize, tv.R, tv.G, tv.B)
+   return d
+   
+def SizeSliderAction(sender):
+   tv.fontsize=round(6+sender.value*72.0)
+   buildAttributes()
+
+   
+def RGBSliderAction(color):
+   def action(sender):
+      setattr(tv,color,sender.value)
+      buildAttributes()
+   return action
+count=0
+def textview_should_change(sender,text):
+   global count
+   buildAttributes()
+   count+=1
+   return True
 v=ui.View(frame=(0,0,576,576),bg_color=(0.7,)*3)
-txtsize=ui.Slider(bg_color=(1,1,1),frame=(0,50,300,50))
-def slideraction(sender):
-   d=NSMutableDictionary.new()
-   sz=round(6+sender.value*72.0)
-   f=UIFont.systemFontOfSize_(sz)
-   d.setValue_forKey_(f,NSFontAttributeName)
-   lblobj.setTypingAttributes_(d)
-   txtsizelbl.text='FontSize={}'.format(sz)
-txtsize.action=slideraction
-txtsizelbl=ui.Label(frame=(0,0,300,20))
+txtsize=ui.Slider(bg_color=(1,1,1),frame=(0,50,300,30))
+redslider=ui.Slider(bg_color=(1,0,0),frame=(0,80,300,30))
+greenslider=ui.Slider(bg_color=(0,1,0),frame=(0,110,300,30))
+blueslider=ui.Slider(bg_color=(0,0,1),frame=(0,140,300,30))
+
+txtsize.action=SizeSliderAction
+redslider.action=RGBSliderAction('R')
+greenslider.action=RGBSliderAction('G')
+blueslider.action=RGBSliderAction('B')
+
+
+desclbl=ui.Label(frame=(0,0,300,20))
 
 v.add_subview(txtsize)
-v.add_subview(txtsizelbl)
-lbl=ui.TextView(bg_color='white',frame=(0,150,300,300))
-lbl.text='type here'
-txtsizelbl.text='Font size={}'.format(lbl.font[1])
-txtsize.value=(lbl.font[1]-6)/72.0
-v.add_subview(lbl)
+v.add_subview(redslider)
+v.add_subview(greenslider)
+v.add_subview(blueslider)
+v.add_subview(desclbl)
+tv=ui.TextView(bg_color='white',frame=(0,150,300,300))
+
+tv.textview_should_change=textview_should_change
+tv.delegate=tv
+tv.fontsize=12
+tv.R=0
+tv.G=0
+tv.B=0
+tv.text='type here'
+
+txtsize.value=(tv.font[1]-6)/72.0
+v.add_subview(tv)
 v.present('sheet')
-lblobj=ObjCInstance(lbl._objc_ptr)
+tvobj=ObjCInstance(tv)
+buildAttributes()

attribtext2.py

@@ -0,0 +1,44 @@
+# coding: utf-8
+# set attributed text dor existing textview
+# same works for Label, except dont need to set allowsAttributedTextEditing, or call on main thread
+from objc_util import *
+
+mystr='''here are some colors:
+   red, yellow, blue, magenta, black, cyan
+this is also editable
+'''
+mystro=ObjCClass('NSMutableAttributedString').alloc().initWithString_(mystr)
+
+   
+UIColor=ObjCClass('UIColor')
+
+colors={'red': UIColor.redColor(),
+'green':UIColor.greenColor(),
+'blue':UIColor.blueColor(),
+'cyan':UIColor.cyanColor(),
+'magenta':UIColor.magentaColor(),
+'black':UIColor.blackColor(),
+'yellow':UIColor.yellowColor()}
+
+# go through each thing i want to highlight, and addAttribute to that range
+for k,color in colors.items():
+   sre=re.finditer(k,mystr)
+   for m in sre:
+      st,end=m.span()
+      l=end-st
+      mystro.addAttribute_value_range_('NSColor',color,NSRange(st,l))
+
+# setup views
+import ui
+
+v=ui.View(bg_color='white',frame=(0,0,300,300))
+tv=ui.TextView(flex='wh',frame=v.bounds)
+v.add_subview(tv)
+v.present('sheet')
+#set up objc instance
+tvo=ObjCInstance(tv)
+def setAttribs():
+   tvo.setAllowsEditingTextAttributes_(True)
+   tvo.setAttributedText_(mystro)
+on_main_thread(setAttribs)()      #apparently this must be called on main thread for textview
+

filter_subviews.py

@@ -0,0 +1,23 @@
+# coding: utf-8
+from objc_util import *
+w=ObjCClass('UIApplication').sharedApplication().keyWindow()
+main_view=w.rootViewController().view()
+      
+def filter_subviews(view,text=None, objcclasstext=None):
+   matching_svs=[]
+   sv=view.subviews()
+   if sv is None:
+      return matching_svs
+   for v in sv:
+      if objcclasstext and objcclasstext in v._get_objc_classname():
+         matching_svs.append(v)
+      if text and hasattr(v,'text'):
+         if str(v.text()) and text in str(v.text()):
+            matching_svs.append(v)
+      matching_svs.extend(
+       filter_subviews(v, text=text, objcclasstext=objcclasstext))
+   return matching_svs
+
+# don't find editor window!
+print 'find'+'me'
+console_view=filter_subviews(main_view,'find'+'me')[0]

print_objc.py

@@ -1,5 +1,5 @@
 # coding: utf-8
-from objc import *
+from objc_util import *
 import ctypes
 
 def parse_encoding(enc):