| | 1 | wxWidgets PDA/Embedded System Emulator |
| | 2 | ====================================== |
| | 3 | |
| | 4 | This is a simple display emulator for embedded |
| | 5 | applications (wxWidgets or other) that use |
| | 6 | an X server. The Familiar Linux distribution |
| | 7 | is one such environment, using Tiny-X. |
| | 8 | |
| | 9 | wxEmulator uses Xnest, which is the XFree86 |
| | 10 | X server compiled to show a virtual X desktop |
| | 11 | in a window. wxEmulator hijacks the Xnest |
| | 12 | window by reparenting its window, and shows |
| | 13 | this window with appropriate PDA-style decorations |
| | 14 | surrounding it. |
| | 15 | |
| | 16 | No real emulation is done, apart from the work |
| | 17 | that Xnest does. You compile your apps on your |
| | 18 | host as usual and test them out with the emulator |
| | 19 | to get an idea of the constraints of the embedded |
| | 20 | system display. Then compile the apps for your |
| | 21 | target system with a suitable cross-compiler, |
| | 22 | or if you have the luxury of lots of space on |
| | 23 | your target device, compile natively on the |
| | 24 | target. |
| | 25 | |
| | 26 | It is intended to create a tarball of the |
| | 27 | emulator, wxX11 and maybe some other useful |
| | 28 | components such as a simple window manager so that |
| | 29 | people can quickly start developing embedded |
| | 30 | GUI applications without the need for actual |
| | 31 | target hardware. |
| | 32 | |
| | 33 | Running wxEmulator |
| | 34 | ================== |
| | 35 | |
| | 36 | Make sure Xnest is in your PATH. You can download |
| | 37 | a binary from the XFree86 ftp server or a mirror, |
| | 38 | or you can compile Xnest from source -- but this |
| | 39 | downloading XFree86 source in its entirety and |
| | 40 | compiling it. Say goodbye to half a gig of disk |
| | 41 | space if you take this option. |
| | 42 | |
| | 43 | Then run wxEmulator: |
| | 44 | |
| | 45 | % emulator & |
| | 46 | |
| | 47 | or |
| | 48 | |
| | 49 | % emulator mydevice.wxe & |
| | 50 | |
| | 51 | to specify a configuration file. Run emulator --help |
| | 52 | to show what options are available, such as --use-display |
| | 53 | for specifying a display other than :100. |
| | 54 | |
| | 55 | After a brief flicker in which wxEmulator steals |
| | 56 | Xnest's window, you should see an emulated iPAQ with |
| | 57 | a checked screen that indicates raw X with nothing else |
| | 58 | running. |
| | 59 | |
| | 60 | Running any X applications with the Xnest display |
| | 61 | number (currently 100) will show those applications |
| | 62 | in the emulator window instead of the normal desktop. |
| | 63 | |
| | 64 | For example: |
| | 65 | |
| | 66 | % xeyes -display :100 & |
| | 67 | |
| | 68 | Before running any other programs, run a window |
| | 69 | manager such as twm: |
| | 70 | |
| | 71 | % twm -display :100 & |
| | 72 | |
| | 73 | If the X program or WM you want to run doesn't support the |
| | 74 | -display argument, try exporting the DISPLAY variable |
| | 75 | before running it. E.g.: |
| | 76 | |
| | 77 | % export DISPLAY=:100 |
| | 78 | % xterm & |
| | 79 | |
| | 80 | For details on the configuration file format, please |
| | 81 | see default.wxe. Eventually it will support |
| | 82 | device buttons. |
| | 83 | |
| | 84 | Compiling wxEmulator |
| | 85 | ==================== |
| | 86 | |
| | 87 | You need to use wxX11 -- no other port is supported. |
| | 88 | Configure and make wxX11 in the usual way (see docs/x11/install.txt |
| | 89 | at the wxWidgets top level), then compile wxEmulator |
| | 90 | using the makefile that configure created. |
| | 91 | |
| | 92 | Have fun! |
| | 93 | |
| | 94 | Julian Smart, March 2002 |
| | 95 | |
projects / wxWidgets.git / blame_incremental