should be replaced by some low level procedures

--> documentation

with rotate180 and 270 there is an error in the graphcis demo/gradient box
the first line of the little green box is wrong

what is the return type?
Will the descent value be negative?

[deleted issue]

If you could add support for SSD1289 displays then that would be HUGELY 
appreciated. They're so inexpensive at the moment 
(http://www.banggood.com/3_2-Inch-SSD1289-TFT-LCD-Display-Module-Touch-Panel-For
-Arduino-p-918609.html) and they could open up a world of possibilities for 
Arduino projects!

drawLine is missing

introduce a message to do fast zero transfer

... on ucg_t level
Remove the T::Print interface

Ucglogo rot90 does not work. Looks like not all directions of the line are 
working

Implement RGB output (L90RGB)
Intended for bitmap output

Create Arduino compatible u8glib library
https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5:-Library-specification


Publish ucglib:
https://github.com/arduino/Arduino/wiki/Library-Manager-FAQ
https://github.com/arduino/Arduino/issues

--> use scope

https://code.google.com/p/u8glib/wiki/fontgroupunifont

http://forum.arduino.cc/index.php?topic=210474.msg1864100

add support for HY28?

http://forum.arduino.cc/index.php?topic=214966.30#msg1825113

void loop(void)
{
  ucg.setRotate90();
  ucg.setFont(ucg_font_ncenB24r);
  ucg.setColor(1, 255, 255, 255);   //  text background color

  ucg.setColor(255, 0, 0);    //  red
  ucg.setPrintPos(0,25);
  ucg.print("Hello World!");

  ucg.setRotate270();
  ucg.setColor(0, 0, 255);   //  blue
  ucg.setPrintPos(0, 75);
  ucg.print("Hello World!");

  delay(500);  
}

the rotate270 is not working with font mode solid.

all ucg_dev_ic... should  support power down.

... is missing in the c++ interface.
C interface: ucg_int_t ucg_GetStrWidth(ucg_t *ucg, const char *s);

this will affect many procs in the com interface, but might save some code for 
8 bit controllers. currently the 32 bit widht is not really used.

Would like to have this display supported by a proper Arduino graphics library.

Example initialization code, attempted for U8Glib: http://pastebin.com/6NLW4hiK

Merging this into a format similar to 'ucg_ft_ssd1351_init_seq' would seem to 
be an appropriate starting point.

Reference to a callback function (ucg_com_my_own_hal), independent of *_ilsoft 
function (ucg_dev_ssd1351_18x128x128_ilsoft), is made at 
http://code.google.com/p/ucglib/wiki/hal . However, no corresponding function 
is obvious in the codebase at present. Rather, the documented functionality 
seems implemented by the *_ilsoft function.

A related function, ucg_ext_ssd1351_18(), has been discovered to address only 
msg == UCG_MSG_DRAW_L90SE . This functionality does not seem critical, and may 
have previously been handled by ucg_dev_ssd1351_18x128x128_ilsoft() through 
ucg_dev_ic_ssd1351_18() .

Ultimately, the important function/procedure calls seem to take place in the 
following order, by example:
Ucglib4WireHWSPI --> Ucglib_SSD1351_18x128x128_HWSPI (Ucglib.h declaration) --> 
ucg_dev_ssd1351_18x128x128_ilsoft (ucg_dev_oled_128x128_ilsoft.c definition)

In other words, for device SSD1351, all essential hardware-abstraction-layer 
callback functionality seems handled by ucg_dev_ssd1351_18x128x128_ilsoft.

check if pandoc can be used.
Maybe google wiki is readable as textile, then convert to pdf

In the procedure
static int16_t ucg_com_arduino_generic_SW_SPI(ucg_t *ucg, int16_t msg, uint16_t 
arg, uint8_t *data)

the call to

  ucg_com_arduino_init_shift_out(ucg->pin_list[UCG_PIN_SDA], 

could be done during powerup and CD 

https://github.com/sumotoy/TFT_ILI9163C

128x128 / 128x160
Nokia replacement

http://www.ebay.com/itm/LCD-1-44-Red-Serial-128X128-SPI-Color-TFT-LCD-Display-Mo
dule-for-Nokia-5110/181337032247

the following API/member function do not have a documentation:
ucg_t *getUcg(void) 
void setFontMode(ucg_font_mode_fnptr font_mode) 
void undoScale(void)
void setScale2x2(void)
void setMaxClipRange(void)
void drawDisc(ucg_int_t x0, ucg_int_t y0, ucg_int_t rad, uint8_t option) 
void drawCircle(ucg_int_t x0, ucg_int_t y0, ucg_int_t rad, uint8_t option)
void drawTetragon(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, 
int16_t y2, int16_t x3, int16_t y3) 

problem: nano_delay() contains wrong call to Microseconds()
--> fixed

array with alternate entries
cd_info
data
cd_info
data
...
cd_info
data
cd_info

cd_info == 0
   no change
cd_info == 1
   change cd line to 0
cd_info == 2
   change cd line to 1

sequence must end in cd_info and this cd_info must be none-zero.

Introduce new message for this.

todo: analyse, if this can be added as an example (e-mail from Nic)

gylph width is wrong.

Can you add support for SEPS525?
NHD-1.69-160128UGC3
http://www.newhavendisplay.com/nhd169160128ugc3-p-5603.html
http://www.newhavendisplay.com/specs/NHD-1.69-160128UGC3.pdf

//Ucglib_SSD1351_18x128x128_FT_SWSPI ucg(/*sclk=*/ 13, /*data=*/ 11, /*cd=*/ 9 
, /*cs=*/ 10, /*reset=*/ 8);
//Ucglib_SSD1351_18x128x128_FT_HWSPI ucg(/*cd=*/ 9 , /*cs=*/ 10, /*reset=*/ 8);

implementation almost done
testing required (see Arduino forum)

Everything seems work fine but colors. When i power up module white screen 
appears. To make it black i have to write rectangle with (255,255,255).

The colors seems to be inverted (but not exacly): 
(255,255,255) is black and (0,0,0) is white, red is (0,255,255) and so on.
The colors that uses half tone(not 0 or 255) -  oragne for example  are hard to 
display.

What steps will reproduce the problem?
1. nothing, just connect it and try

What is the expected output? What do you see instead?
different color than the should be;

What version of the product are you using? On what operating system?
http://www.banggood.com/1_8-Inch-Serial-SPI-TFT-LCD-Display-Module-With-Power-IC
-SD-Socket-p-909802.html

arduino mega/nano/pro mini - the same effect
windows 8.1x46 (but ot doesn't matter)


Please provide any additional information below.
Please add function to map colors propperly.
Thank You
Przemek

see graphics demo with ILI9325

https://code.google.com/p/ucglib/source/browse/csrc/ucg_bitmap.c

Hi,

Does this library also work with AVR (for the ILI 9341)?

Thank you.

Best regards,

Kevin Lamers

http://forum.arduino.cc/index.php?topic=265806.0
http://marekburiak.github.io/ILI9341_due/
https://github.com/marekburiak/ILI9341_due

The arduino forum post contains some speed tests. Maybe the test should be 
repeated on with ucglib first. Then add dma support if required.

Setting of the A0/RS/CD line depends on the configuration, but is fixed in the 
the .cpp file
--> fixe code for message UCG_COM_MSG_SEND_CD_DATA_SEQUENCE

sck --> sclk
sda --> data

not in documentation. Need to check if this exists as a c++ procedure.
(Feedback from "Re: Ucglib: A new Color OLED and TFT Library...")

... from u8glib

Build some simple com devices for the Due based on digitalWrite

- windows exe
- help page

... with Uno and 8Bit parallel

fix manual entry for drawGradientBox