Major rework

ChangeLog.md

@@ -0,0 +1,49 @@
+Changes to adafruit-pi-cam
+==========================
+
+Version 2.2 (Quality)
+---------------------
+
+- **new feature**: added settings page and logic for image quality.
+                   The program now supports jpg and jpg+raw. Note that
+                   for jpg+raw the raw bayer-data is append to the
+                   generated jpg and the file size increases by about 6MB.
+                   To process the file, you have to convert it first
+                   to dng with [raspi_dng](https://github.com/bablokb/raspiraw).
+                   Once in DNG-format, you can use the rawprocessor
+                   of your choice (Rawtherapee works fine).
+
+Version 2.1 (Direct Quit)
+-------------------------
+
+- **new feature**: after boot, the first setting screen is the
+                   quit confirmation page. This allows faster shutdown.
+- **internal**:    code changes for future enhancements
+
+
+Version 2 (major rework)
+------------------------
+
+This version needs a newer version of python-picam (tested with
+version 1.8). It additionally needs the package python-pyexiv2.
+
+- **new feature**: added screen for setting AWB
+- **new feature**: add thumbnail to captured image and save to /home/pi/.cache
+- **performance**: display cached thumbnails instead of scaled down images
+- **performance**: keep list of images-numbers instead of testing existence
+                   of files with thousands of os-calls
+- **change**:      name images rpi_XXXX.jpg instead of IMG_XXXX.JPG
+                   (unix-tools usually expect lower case in filenames)
+- **fix**:         change owner of captured images to pi:pi
+- **fix**:         capture raw RGB directly, no need to scale result with C-code
+- **fix**:         removed buggy cropping code (camera.crop is deprecated)
+- **fix**:         added shebang (no need to call python explicitly to execute code)
+- **fix**:         start cam.py from any directory
+                   (in *nix, you should stay at HOME)
+- **fix**:         read and write cam.pkl in user's HOME-directory
+- **new feature**: set EXIF-tag 'WhiteBalance' to auto or manual
+
+
+Version 1 (original Adafruit release)
+-------------------------------------
+

README.md

@@ -5,5 +5,13 @@ Camera project for Raspberry Pi + camera + Adafruit PiTFT
 By PaintYourDragon (Phil B) for Adafruit Industries
 
 Read how to build this project over at 
-http://learn.adafruit.com/diy-wifi-raspberry-pi-touch-cam
+[http://learn.adafruit.com/diy-wifi-raspberry-pi-touch-cam](http://learn.adafruit.com/diy-wifi-raspberry-pi-touch-cam)
 Enjoy!
+
+Modified by Bernhard Bablok. For list of changes, see ChangeLog.md
+
+Not that the prereqs have changed compared to the original documentation:
+
+- python-picam    (current version, tested with 1.8)
+- python-pyexiv2  (new prereq)
+

TODO

@@ -0,0 +1,11 @@
+- rework UI
+  * add toggle button to unclutter screen
+  * add direct access-buttons for ISO, WB, (quality)
+  * add buttons for exposure-compensation
+
+- add features
+  * exposure compensation
+  * exposure (auto, shutter-speed)
+
+- fix 1920x1080 offset: no WYSIWYG
+