Changes between Initial Version and Version 1 of pjwin_idea


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Timestamp:
Apr 26, 2009 10:53:15 PM (11 years ago)
Author:
bennylp
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  • pjwin_idea

    v1 v1  
     1= PJWIN - Portable Mobile Windowing Toolkit = 
     2 
     3== Objective == 
     4 
     5Develop a simple, small-footprint GUI toolkit to build simple applications that are portable across platforms, especially mobile platforms. 
     6 
     7The '''exact same''' GUI source code should be portable across these platforms: 
     8 - Windows 
     9 - Windows Mobile Professional/PocketPC platform (i.e. with touch interface) 
     10 - Windows Mobile Standard/Smartphone platform (i.e. without touch) 
     11 - Symbian/S60 3rd edition 
     12 - (optional) console application 
     13 - (optional) Qt application 
     14 
     15== Basic idea == 
     16 
     17The basic idea is to use XUL-like interface (see [http://www.mozilla.org/projects/xul/ XUL], and [https://developer.mozilla.org/en/XUL_Tutorial XUL tutorial]), but much more simplified. 
     18 
     19Sample interactions: 
     20 
     21 1. Describe the window using XUL-like syntax (the code below is all over the place but hopefully you get the idea): 
     22    {{{ 
     23const char *xml =  
     24   "<?xml version="1.0"?> 
     25    <window id="mainwnd" 
     26            title="Hello world"> 
     27      <label value="Press the button to exit"/> 
     28      <button id="btn_quit" value="Quit"/> 
     29    </window>"; 
     30    }}} 
     31 1. Create the window using the XUL XML description: 
     32    {{{ 
     33window *wnd = create_window(xml); 
     34    }}} 
     35 1. For modal dialog, start the dialog, giving it callback function to receive events from the window: 
     36    {{{ 
     37do_modal(wnd, &event_handler); 
     38    }}} 
     39 1. Do some code in the event handler: 
     40    {{{ 
     41void event_handler(window *wnd, const pj_str_t *element, event *event) 
     42{ 
     43   if (pj_strcmp2(element, "btn_quit")==0) 
     44      end_dialog(wnd); 
     45} 
     46    }}} 
     47 1. And that's it! 
     48 
     49 
     50== The GUI elements == 
     51 
     52Supported elements: 
     53 * window 
     54 * hbox and vbox 
     55 * spacer 
     56 * label (static text) 
     57 * command bar (will be translated into buttons or menu on interface with touch capability, or into menu on the rest) 
     58 * edit/input control 
     59 * combo box control (advanced) 
     60 * list control (advanced) 
     61 
     62Unsupported elements: 
     63 * button (it's only most usable with touch interface) 
     64 
     65 
     66