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303 Commits

Author SHA1 Message Date
inmarket
8b9d31ef90 Move queued buffer code from gaudio into gqueue 2014-03-20 23:33:32 +10:00
inmarket
e4d6884bca Cause the gaudio/gadc driver (currently broken) to include the GADC framework if it is included in the make. 2014-03-20 23:31:10 +10:00
inmarket
ea5a1b849d Combine GAUDIN and GAUDOUT into a single GAUDIO module. 
Simplify GAUDIN (now GAUDIO RECORD) api.
Update audio demo's to match.
Port Win32 driver to new audio api.
 2014-03-11 17:13:31 +10:00
inmarket
6d5a748f1c First GAUDOUT working demo. 2014-03-06 20:02:16 +10:00
inmarket
47cfa8d152 Fix incorrect additon of GFX flag on audio in oscilloscope demo 2014-03-06 20:01:03 +10:00
inmarket
2fb6697f2a Move gaudin oscilloscope demo to a new directory 2014-03-06 19:58:13 +10:00
inmarket
ccf05de456 Update console demo to test more console features. 2014-03-05 13:42:41 +10:00
inmarket
c110548507 Add support for ANSI like escape sequences to control display color and attributes in a GWIN console. 
Updated the console demo to demonstrate this.
 2014-03-04 14:14:15 +10:00
inmarket
14fa749f36 Fix doom demo to prevent ARM compilers throwing away part of the WAD file. 2014-02-19 08:07:21 +10:00
inmarket
37966ff16d Integrate the include files with each module. Simplifies structure of code. 2014-02-19 00:36:52 +10:00
inmarket
fe6708c7a2 Demo updates to fix compile issues. 2014-02-19 00:23:07 +10:00
inmarket
5f8ca40ef0 Remove replaced doom demo makefile 2014-02-19 00:20:30 +10:00
inmarket
6dd606fc2f Add demo makefiles and update example master makefiles to match. 2014-02-19 00:19:38 +10:00
inmarket
200f7ecf6d Updates to demo to work on ChibiOS and to test orientation. 2014-02-16 17:22:24 +10:00
inmarket
5edf7c956e On ARM gcc compiler it appears that non-referenced character arrays are "optimised" out (but not on x86). 
This conflicts with the -b parameter in the file2c tool and leads to corrupted images on ARM platforms.
For now just remove the parameter when generating ROMFS files for an ARM platform.
 2014-02-15 22:28:07 +10:00
inmarket
4d3a08f5cf Update image demo's to use GFILE ROMFS. 2014-02-07 18:44:32 +10:00
inmarket
010e0f0d62 Update demo's with images in them 2014-02-07 14:08:39 +10:00
inmarket
71818b2942 Listbox demo: Change default font to UI2, fix the gfxconf defines, remove surpurflous defines 2014-02-03 17:57:38 +10:00
Joel Bodenmann
6515373b2a removing casts of gfxAlloc() return value as that is the whole idea behind having a void pointer 2014-02-02 12:59:36 +01:00
Joel Bodenmann
55ced68fbd list demo & doc 2014-02-01 15:38:37 +01:00
inmarket
199b89e4dc Updates to console history. This now works well. 2014-01-17 18:36:28 +10:00
inmarket
fcc6c165b9 Break huge wad structure up for easier compiling. 2013-12-29 11:39:14 +10:00
inmarket
40b2bb6c24 Bug in I_sprintf in doom demo 2013-12-25 16:50:29 +10:00
inmarket
0345dadebf Fixes to DOOM demo to remove some operating system dependancies. 
Also now has working input (although not perfect) - Needs mouse or touch.
Also now supports screen size doubling when the screen is significantly larger than doom's screen.
 2013-12-24 19:58:18 +10:00
inmarket
39adfff2a9 demo - DOOM the game. 
Runs but not quite functional yet (requires user input to be completed).
Shareware WAD file. Please read README.txt and DOOMLIC.txt
 2013-12-24 01:00:14 +10:00
inmarket
301f871ee7 Update GAUDIN and GADC demos to new internal GWIN structures. 
Also add support for signed sample formats.
 2013-12-22 21:37:41 +10:00
inmarket
d9f02858fd Replace NULL's with 0 as NULL is not defined by the Raw32 GOS. 2013-12-21 13:21:59 +10:00
Joel Bodenmann
891f134bc1 Removed TDISP module 2013-12-11 14:50:09 +01:00
Joel Bodenmann
560f946cd9 Added progressbar widget (demos still to do) 2013-12-01 23:53:42 +01:00
inmarket
51dedb56d1 Move touch driver test to tools. 
Also replace gwin buttons as they comptete with the test for touch events
 2013-11-23 12:57:49 +10:00
inmarket
1dfbc0ab82 Comment fix 2013-11-23 12:55:23 +10:00
inmarket
db74e7c823 Remove orientation changes in demos because this is now handled by using GDISP_DEFAULT_ORIENTATION. 2013-11-16 01:51:32 +10:00
inmarket
1f99d5c9fa Add support for a default application orientation. 
Also remove old unneeded GDISP_USE_CUSTOM_BOARD macro
 2013-11-09 19:18:59 +10:00
inmarket
53408e2cb3 Fix incorrect naming of GMISC_INVSQRT_... macros. 2013-11-09 19:13:01 +10:00
inmarket
553dea5fcd Make the hardware depedant options clearer for the widgets demo 2013-10-29 01:11:25 +10:00
inmarket
db09e33dff Fix spelling error and migrate demo gfxconf.h changes to all demos including the new streaming and multiple display demos 2013-10-28 10:46:25 +10:00
inmarket
602cba0e62 Remove 3rd party boing demo as it is replaced by the new hardware independant GDISP streaming demo. 2013-10-28 10:44:05 +10:00
Joel Bodenmann
2cb8e08c52 uncommented GOS selection in GDISP and GWIN demos 2013-10-28 10:00:35 +10:00
Joel Bodenmann
36c55722dd updated GDISP and GWIN demos 2013-10-28 09:52:09 +10:00
Joel Bodenmann
2832f97fed fixed orientation stuff in widgets demo 2013-10-26 17:58:25 +02:00
inmarket
7ba622b797 Add initial orientation to the widgets demo. 2013-10-24 16:52:17 +10:00
inmarket
e6f17baf61 GMISC invsqrt() function. 
Fix a 64bit processor bug.
Add support for processors where the floating point and integer endianness don't match.
Add support for processors with a non-standard floating point format.
Update gdisp_streaming demo with extra comments to reflect the above changes.
 2013-10-24 15:03:47 +10:00
inmarket
70b8206356 Update graph demo so it compiles multi-os direct from a makefile 2013-10-22 09:17:41 +10:00
inmarket
0b9db701a1 Fix missing case in gdispStreamStop(). 
Add support for controllers that need flushing.
Add both automatic and manual flushing (via the gdispFlush() method)
 2013-10-21 13:34:55 +10:00
inmarket
86a5734912 Multiple controller support can now auto-detect hardware capabilities at run-time. 
Specific hardware support can still be turned off or on via macros in gfxconf.h to improve efficiency.
Multiple Display demo updated to match.
 2013-10-16 01:39:56 +10:00
inmarket
3b8c572552 New demo for multiple display support. 2013-10-14 08:55:44 +10:00
Joel Bodenmann
a2aa837e09 updated notepad demo text 2013-09-28 09:01:53 +10:00
inmarket
a7360c13c2 Update animated image demo to better support small displays 2013-09-27 01:36:31 +10:00
inmarket
c5ceb31e73 Update to streaming demo program to only update the needed area (results in much faster display on slow devices) 
Also now demonstrates streaming to a non-full screen area.
 2013-09-25 17:15:50 +10:00
inmarket
f16d80e099 New streaming demo 2013-09-24 16:12:03 +10:00
inmarket
85aa1f03ed Use scrolling console in widget demo by default 2013-09-18 23:40:17 +10:00
inmarket
6858e33285 Update demos so OS can be specified in the Makefile 2013-09-18 23:38:26 +10:00
Joel Bodenmann
a7fecd2a0b added cyrillic font demo 2013-09-15 02:34:07 +02:00
inmarket
b53ab7adf4 Update demos slightly. 2013-09-06 12:22:08 +10:00
inmarket
bbdbd637f0 Update old demos for new fonts. 2013-08-17 23:35:18 +10:00
inmarket
0e707769b4 Add new font demo showing how to include user application fonts. 2013-08-17 23:34:43 +10:00
inmarket
964ebc6e4a Remove unnessary header file in demo 2013-08-17 23:24:52 +10:00
inmarket
9ebd3530fa Merge branch 'master' into fonts 2013-08-01 18:13:59 +10:00
inmarket
ac2baed7e5 Update widget demo so list 3 is multi-select 2013-08-01 18:12:58 +10:00
inmarket
a2632f0d31 Merge branch 'master' into fonts 2013-08-01 18:07:34 +10:00
inmarket
2e91479bd5 Add image support to GWIN Listboxes. 
Updated GWIN widgets demo to match.
 2013-08-01 18:05:48 +10:00
inmarket
312e759124 Add GWIN List multi-select support 2013-08-01 15:58:46 +10:00
inmarket
157ec08034 Merge branch 'master' into fonts 2013-08-01 15:06:32 +10:00
inmarket
2d27673f0f Update GWIN widget demo 2013-08-01 14:51:40 +10:00
inmarket
06d339456e Update gwin widgets and lists demos 2013-08-01 14:50:40 +10:00
inmarket
ab04b1d076 Update notepad demo for anti-aliased fonts 2013-07-29 17:26:33 +10:00
inmarket
3ac4e9e789 Update widgets demo for new fonts 2013-07-29 16:21:36 +10:00
inmarket
3977ee687f First cut - beautiful new font handling by PetteriAimonen 2013-07-28 17:08:45 +10:00
inmarket
984e14efb7 List updates and add list demo - still work in progress 2013-07-27 22:26:16 +10:00
inmarket
1fbbc4d52b Integrate changes from master branch 2013-07-27 22:25:20 +10:00
inmarket
65ac315271 Remove preset GOS choice. It is defaulted if not specified anyway. 2013-07-26 12:56:27 +10:00
inmarket
7961241989 Fix corruption of binary files by license header updates 2013-07-22 17:04:37 +10:00
Joel Bodenmann
73c5ef26f8 fixed license headers 2013-07-21 22:20:37 +02:00
inmarket
386539072c Image animation changes 2013-07-19 09:37:50 +10:00
Joel Bodenmann
bd8620fb93 typo 2013-07-17 17:50:57 +02:00
Joel Bodenmann
d900257ded added slider demo 2013-07-17 01:48:42 +02:00
Joel Bodenmann
cd5c0e32c1 added radio button demo code 2013-07-16 19:46:31 +02:00
Joel Bodenmann
20155b84c4 whitespaces 2013-07-16 19:00:26 +02:00
Joel Bodenmann
30feefb728 added checkbox demo 2013-07-16 18:57:12 +02:00
Joel Bodenmann
7944147301 added button demo 2013-07-16 18:50:17 +02:00
inmarket
83897ac07a Update graph demo and move under gwin demos 2013-07-16 15:29:26 +10:00
inmarket
c82fc68bfa Update gaudin and gadc demos for new GWIN 2013-07-16 15:28:42 +10:00
inmarket
3d8bb4e85e Add image into Widget demo 2013-07-07 20:10:00 +10:00
inmarket
ba264ef1ad Update GWIN demos 2013-07-07 19:43:34 +10:00
inmarket
8681e85ba6 Change GDISP image default reading mode for WIN32 2013-07-07 19:43:03 +10:00
inmarket
74035c5b2e Add missing file to GDISP image demo 2013-07-07 19:42:22 +10:00
inmarket
fb131f8d26 Remove Slider demo. It is replaced by the Wdigets demo 2013-07-07 19:41:15 +10:00
Joel Bodenmann
f2432096cd added GWIN image demo 2013-07-06 14:24:40 +02:00
inmarket
5191c278e7 Add Radio buttons (can also be used as a Tab group) 2013-07-06 01:46:34 +10:00
inmarket
21e52bc859 Math library no longer needed on widget demo 2013-07-04 00:53:41 +10:00
inmarket
dce9dc00a8 Widget demo update 2013-07-04 00:22:15 +10:00
Joel Bodenmann
b8b149591f readme fix 2013-07-01 09:10:47 +02:00
Joel Bodenmann
775c05f301 in /demos/modules/gwin/widgets disabled ginput toggle by default 2013-07-01 09:09:44 +02:00
inmarket
8ed9e763c0 GWIN reduce Initialisation parameters and fix visibility issues 2013-06-24 22:58:37 +10:00
inmarket
d362d9603e Merge commit 'd8db148a149541f658cc9729785b3694f80e2624' into GWIN 
Conflicts:
	demos/applications/mandelbrot/gfxconf.h
	demos/applications/mandelbrot/main.c
	demos/applications/notepad/gfxconf.h
	demos/applications/notepad/main.c
	demos/benchmarks/gfxconf.h
	demos/benchmarks/main.c
	demos/modules/gadc/gfxconf.h
	demos/modules/gadc/gwinosc.c
	demos/modules/gadc/gwinosc.h
	demos/modules/gadc/main.c
	demos/modules/gaudin/gfxconf.h
	demos/modules/gaudin/gwinosc.c
	demos/modules/gaudin/gwinosc.h
	demos/modules/gaudin/main.c
	demos/modules/gdisp/gdisp_basics/gfxconf.h
	demos/modules/gdisp/gdisp_basics/main.c
	demos/modules/gdisp/gdisp_circles/gfxconf.h
	demos/modules/gdisp/gdisp_circles/main.c
	demos/modules/gdisp/gdisp_images/gfxconf.h
	demos/modules/gdisp/gdisp_images/main.c
	demos/modules/gdisp/gdisp_images_animated/gfxconf.h
	demos/modules/gdisp/gdisp_images_animated/main.c
	demos/modules/gdisp/gdisp_text/gfxconf.h
	demos/modules/gdisp/gdisp_text/main.c
	demos/modules/ginput/touch_driver_test/gfxconf.h
	demos/modules/ginput/touch_driver_test/main.c
	demos/modules/graph/gfxconf.h
	demos/modules/graph/main.c
	demos/modules/gtimer/gfxconf.h
	demos/modules/gtimer/main.c
	demos/modules/gwin/basic/gfxconf.h
	demos/modules/gwin/basic/main.c
	demos/modules/gwin/console/gfxconf.h
	demos/modules/gwin/console/main.c
	demos/modules/gwin/slider/gfxconf.h
	demos/modules/gwin/slider/main.c
	demos/modules/tdisp/gfxconf.h
	demos/modules/tdisp/main.c
	drivers/gdisp/ILI9320/gdisp_lld_config.h
	drivers/gdisp/ILI9325/gdisp_lld_config.h
	drivers/gdisp/Nokia6610GE12/GE12.h
	drivers/gdisp/Nokia6610GE12/gdisp_lld_board_example.h
	drivers/gdisp/Nokia6610GE12/gdisp_lld_board_olimexsam7ex256.h
	drivers/gdisp/Nokia6610GE12/gdisp_lld_config.h
	drivers/gdisp/Nokia6610GE8/GE8.h
	drivers/gdisp/Nokia6610GE8/gdisp_lld_board_example.h
	drivers/gdisp/Nokia6610GE8/gdisp_lld_config.h
	drivers/gdisp/S6D1121/gdisp_lld_board_example.h
	drivers/gdisp/S6D1121/gdisp_lld_board_olimex_e407.h
	drivers/gdisp/S6D1121/gdisp_lld_config.h
	drivers/gdisp/SSD1289/gdisp_lld_board_example.h
	drivers/gdisp/SSD1289/gdisp_lld_board_firebullstm32f103.h
	drivers/gdisp/SSD1289/gdisp_lld_config.h
	drivers/gdisp/SSD1963/gdisp_lld_board_example_gpio.h
	drivers/gdisp/TestStub/gdisp_lld_config.h
	drivers/ginput/toggle/Pal/ginput_lld_toggle_board_example.h
	drivers/ginput/toggle/Pal/ginput_lld_toggle_config.h
	drivers/ginput/touch/ADS7843/ginput_lld_mouse_board_example.h
	drivers/ginput/touch/ADS7843/ginput_lld_mouse_board_firebull_stm32f103.h
	drivers/ginput/touch/ADS7843/ginput_lld_mouse_board_olimex_stm32_e407.h
	drivers/ginput/touch/MCU/ginput_lld_mouse_board_example.h
	drivers/ginput/touch/MCU/ginput_lld_mouse_board_olimex_pic32mx_lcd.h
	drivers/ginput/touch/STMPE811/ginput_lld_mouse_board_embest_dmstf4bb.h
	drivers/ginput/touch/STMPE811/ginput_lld_mouse_board_example.h
	drivers/multiple/Win32/gdisp_lld_config.h
	drivers/multiple/Win32/ginput_lld_toggle_config.h
	include/gaudin/options.h
	include/gaudout/options.h
	include/ginput/options.h
	include/gtimer/options.h
	include/gwin/internal.h
	license.html
 2013-06-22 23:10:20 +10:00
inmarket
ed0bac9765 License header updates 2013-06-15 21:37:22 +10:00
inmarket
49b3e8f55a License header updates 2013-06-15 21:09:02 +10:00
inmarket
2cb35d6815 Clean up GWIN Event assignment. Optimise event efficiency. 2013-06-10 17:18:01 +10:00
inmarket
777ec6af7c Add a simple GWIN window manager, Change the way GWIN visibility works 2013-06-08 02:27:59 +10:00
inmarket
0dca00fc21 License header fixes to some demos. 2013-06-06 16:52:41 +10:00
inmarket
663caba662 GWIN fixes 2013-06-06 16:48:30 +10:00
inmarket
1db77bda85 License fixes to some demos 2013-06-06 16:47:57 +10:00
inmarket
7baf5c5d44 New simplified gwin using a pseudo class structure. 2013-06-06 14:33:32 +10:00
inmarket
8a5596b39d Notepad-2 demo updated to work on ChibiOS or pure Win32 compile 2013-06-02 18:59:12 +10:00
inmarket
c2a4f9a5d6 Had extra elements to gitignore and fix image problems created by github 2013-06-02 18:55:59 +10:00
Joel Bodenmann
e12a213ff1 doxygen fixes 2013-06-01 01:57:20 +02:00
Joel Bodenmann
ebc30c02bc TDISP update 2013-06-01 01:37:53 +02:00
Joel Bodenmann
f2ba60f465 gdispInit() -> gfxInit() in all demos 2013-05-30 19:02:55 +02:00
inmarket
7fbfde42aa GOS module, for operating system independance 
GMISC fast floating point trig
GMISC fast fixed point trig
 2013-05-25 01:26:52 +10:00
Abhishek Kumar
e52cb141b7 New Notepad-2 Demo for ChibiOS/GFX 
See demos/3rdparty/notepad-2/readme.txt for more details.
 2013-05-23 23:38:57 +07:00
Joel Bodenmann
3571d18741 TDISP demo fix 2013-05-15 18:05:25 +02:00
Joel Bodenmann
296e74f3e0 Revert "updated license headers" 
This reverts commit 0a26d9983b.
 2013-05-02 01:53:28 +02:00
Joel Bodenmann
ccbd205dcb Revert "fixed 3rdparty demos path" 
This reverts commit dca2721b9d.
 2013-05-02 01:53:22 +02:00
Joel Bodenmann
dca2721b9d fixed 3rdparty demos path 2013-05-02 01:51:36 +02:00
Joel Bodenmann
0a26d9983b updated license headers 2013-05-02 01:50:09 +02:00
Andrew Hannam
a02c124940 GIF image handling 
GIF image handling
Updates to Image structure to make memory accounting optional
Add set image background color to handle animated transparency.
 2013-04-20 21:19:26 +10:00
Joel Bodenmann
86b35d641d typo 2013-04-15 13:23:32 +02:00
Joel Bodenmann
e1437a648e cleanup 2013-04-14 22:36:46 +02:00
Joel Bodenmann
3eea362fae added demos/3thparty 2013-04-14 22:36:24 +02:00
Joel Bodenmann
1946749578 changed the license of all demos to BSD 2013-04-08 21:55:13 +02:00
Andrew Hannam
9ee7c284e6 Add GINPUT Dial, simplify GWIN input assignment 
Added GINPUT Dial support and a driver that uses GADC to read the dial.
Added support for Dial inputs to the GWIN slider.
Updated the slider demo for Dial Inputs.
Simplified the assigning of inputs to GWIN "widgets" button and slider.
Updated the demo's to match the new input to button assignment.
 2013-04-07 16:02:10 +10:00
Andrew Hannam
ee19104dbb GWIN slider + image support 2013-04-06 21:54:19 +10:00
Andrew Hannam
a67cafeaa7 Move demos to better locations 2013-04-06 21:53:40 +10:00
Andrew Hannam
8b15aab802 Update demo to use Memory Reader for images 2013-04-04 21:02:05 +10:00
Andrew Hannam
64971549fd New GDISP image handling with demo 
Images currently support Native and BMP (except RLE4,8 and 16 bit - due
to bugs)
Supports reading from Memory, BaseFileStream or real files (only on the
Win32 simulator).

Move gdisp_pictures demo to better refect its purpose.

Bug fixes for BMP RLE4,8 & 16 bit to come very soon
GIF support very soon.
 2013-04-03 13:51:43 +10:00
Andrew Hannam
40b390908c GDISP changes including polygon support 
Add polygon drawing
Add convex polygon filling
Start support for a monochrome display
Move gdisp doxygen to header file
Restructure the balance between gdisp.h and gdisp_lld.h
Remove old extern font definitions (now always use gdispOpenFont)
Make public the GDISP structure and change macros to suit (faster for
the application).
gdispQuery is now optional.
 2013-03-10 16:14:32 +10:00
Andrew Hannam
8a40457c86 Revert "GDISP changes including polygon support" 
This reverts commit 269262ef9b.
 2013-03-10 16:12:13 +10:00
Andrew Hannam
269262ef9b GDISP changes including polygon support 
Add polygon drawing
Add convex polygon filling
Start support for a monochrome display
Move gdisp doxygen to header file
Restructure the balance between gdisp.h and gdisp_lld.h
Remove old extern font definitions (now always use gdispOpenFont)
Make public the GDISP structure and change macros to suit (faster for
the application).
gdispQuery is now optional.
 2013-03-10 16:11:41 +10:00
Andrew Hannam
40534cbc79 Correction of copyright message 2013-03-08 00:49:52 +10:00
Joel Bodenmann
e315480c71 updated copyright - 2013 2013-03-06 23:11:01 +01:00
Joel Bodenmann
12a6eeb91d added gdisp_pictures demo 2013-03-04 23:54:50 +01:00
Joel Bodenmann
b91e619573 __inline becomes inline because most compilers dont like the prefix 2013-03-04 23:50:21 +01:00
Andrew Hannam
6ee8b005ae GAUDIN implemented with GADC driver 2013-03-01 09:04:52 +10:00
Andrew Hannam
9bec5967b2 GADC implementation with demo program 
Also includes driver for AT91SAM7 cpu
 2013-02-18 17:33:35 +10:00
Joel Bodenmann
1bfc5a9f85 removed GDISP_LLD() macro - fix 2013-02-11 09:25:45 +01:00
Joel Bodenmann
885b3d53b3 removed GDISP_LLD() macro 2013-02-11 09:25:26 +01:00
Joel Bodenmann
1e4cb14188 TDISP update 2013-01-16 10:29:03 +01:00
Joel Bodenmann
1c1b3c8d74 TDISP: added custom character routine 2013-01-12 09:38:38 +01:00
Joel Bodenmann
66bb4ecb85 Merge branch 'tdisp' 2013-01-11 15:04:40 +01:00
Joel Bodenmann
dae721900b small doxygen fixes 2013-01-11 19:39:36 +01:00
Joel Bodenmann
249a1b345f added tdisp demo 2013-01-11 15:04:33 +01:00
Joel Bodenmann
130d84ec16 benchmark demo update 2012-12-22 20:45:11 +01:00
Joel Bodenmann
a7eb91ace8 benchmark demo cleanup 2012-12-22 20:03:41 +01:00
etmatrix
d6740c5c91 Add benchmarks application 2012-12-22 18:50:17 +01:00
Joel Bodenmann
2df6eaf2fd small demo code cleanup 2012-12-20 19:50:02 +01:00
Andrew Hannam
2c5d5c5118 New & updated GDISP demo programs 2012-12-20 18:34:12 +10:00
Joel Bodenmann
6ce59a4d7d notepad demo update 2012-12-16 21:56:43 +01:00
Andrew Hannam
f31a1f7f4a Updated graph demo to show more 
Added extra line segment graphing to the graph demo
 2012-12-13 23:05:49 +10:00
Andrew Hannam
512c7fa4f6 Added graph result picture 
Added a picture to the graph demo directory to show the result of
running the demo.
 2012-12-13 22:40:27 +10:00
Andrew Hannam
311c0e7168 Add grids to graph demo and update graph arrows 
Add grid lines to graph demo.
Update graph arrows to allow seperate control of positive and negative
axis arrowheads.
 2012-12-13 22:33:05 +10:00