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Edje Documentation <small>at Tue Feb 8 2011</small>
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<h1>lua_script.edc</h1> </div>
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<p>This example show the usage of lua scripting to create and animate some objects in the canvas.</p>
<div class="fragment"><pre class="fragment">collections {
group { <a name="a0"></a><a class="code" href="edje__data_8c.html#a8f8f80d37794cde9472343e4487ba3eb">name</a>: <span class="stringliteral">"example"</span>;
lua_script_only: 1;
lua_script {
--<span class="comment">// stick object private/local vars here</span>
local D;
local count = 0;
local fndata = 99;
local function mycb3 (v)
print(<span class="stringliteral">"lua::callback transition "</span> .. D.val .. <span class="stringliteral">" v: "</span> .. v);
d = {};
edje.size(d);
print(<span class="stringliteral">"lua::objsize= "</span> .. d.w .. <span class="stringliteral">" , "</span> .. d.h);
sz = {w=v * 80, h=v * 40};
D.rect:geom(((d.w / 2) * math.sin(v * 2 * math.pi)) + ((d.w - sz.w) / 2),
((d.h / 2) * math.cos(v * 2 * math.pi)) + ((d.h - sz.h) / 2),
sz.w, sz.h);
D.rect:color(255, 128, v * 255, 255);
D.rect:move(d);
print(<span class="stringliteral">"lua::pos= "</span> .. d.x .. <span class="stringliteral">" , "</span> .. d.y);
r = D.rect:above();
<span class="keywordflow">if</span> (r ~= nil) then
print(<span class="stringliteral">"lua::rcol"</span>);
r:color(20, v * 255, 60, 255);
<span class="keywordflow">else</span>
print(<span class="stringliteral">"lua::r none!!!!!!!!!!!!!!1"</span>);
end
d = edje.size();
D.clip:geom(10, 10, d.w - 20, d.h - 20);
c = D.clip:clipees();
<span class="keywordflow">for</span> i=1,table.getn(c),1 <span class="keywordflow">do</span>
d = c[i]:geom();
print(<span class="stringliteral">"lua::"</span> .. i .. <span class="stringliteral">" geom = "</span> .. d.x .. <span class="stringliteral">","</span> .. d.y .. <span class="stringliteral">" "</span> .. d.w .. <span class="stringliteral">"x"</span> .. d.h);
end
<span class="keywordflow">return</span> <span class="keyword">true</span>; --<span class="comment">// repeat the timer</span>
end
local function mycb2 ()
print(<span class="stringliteral">"lua::callback animator "</span> .. count);
print(<span class="stringliteral">"lua:: seconds: "</span> .. edje.seconds());
print(<span class="stringliteral">"lua:: looptime: "</span> .. edje.looptime());
local date = edje.date();
print(<span class="stringliteral">"lua:: date: "</span> ..
date.year .. <span class="stringliteral">"|"</span> ..
date.month .. <span class="stringliteral">"|"</span> ..
date.day .. <span class="stringliteral">"|"</span> ..
date.yearday .. <span class="stringliteral">"|"</span> ..
date.weekday .. <span class="stringliteral">"|"</span> ..
date.hour .. <span class="stringliteral">"|"</span> ..
date.min .. <span class="stringliteral">"|"</span> ..
date.sec
);
<span class="keywordflow">return</span> <span class="keyword">true</span>; --<span class="comment">// repeat the timer</span>
end
local function mycb ()
print(<span class="stringliteral">"lua::callback "</span> .. count .. <span class="stringliteral">" fndata = "</span> .. fndata);
count = count + 1; --<span class="comment">// keep count of calls - object data</span>
fndata = fndata + 3; --<span class="comment">// play with object vars to see if they persist</span>
D.tim = edje.timer(0.25, mycb); --<span class="comment">// inside cb add new timer</span>
D.ani = edje.animator(mycb2);
<span class="keywordflow">return</span> <span class="keyword">false</span>; --<span class="comment">// cease repeating the timer</span>
end
--<span class="comment">// init object here</span>
D = {}; --<span class="comment">// data is empty table to start</span>
D.val = math.random(); --<span class="comment">// start with some random value so</span>
fndata = fndata + D.val; --<span class="comment">// func data start point</span>
print(<span class="stringliteral">"lua::init ... "</span> .. D.val);
edje.echo(<span class="stringliteral">"lua::echo('hello world')"</span>);
--<span class="comment">// actually add the timer to call mycb in 1.23 sec</span>
D.tim = edje.timer(1.23, mycb);
D.tra = edje.transition(5.0, mycb3);
<span class="keywordflow">if</span> (edje.spanky) then edje.spanky(); end
--<span class="comment">// send some random edje message</span>
edje.messagesend(7, <span class="stringliteral">"none"</span> );
edje.messagesend(7, <span class="stringliteral">"sig"</span>, <span class="stringliteral">"signal"</span>, <span class="stringliteral">"source"</span>);
edje.messagesend(7, <span class="stringliteral">"str"</span>, <span class="stringliteral">"hello world"</span>);
edje.messagesend(7, <span class="stringliteral">"int"</span>, 987);
edje.messagesend(7, <span class="stringliteral">"float"</span>, 987.321);
edje.messagesend(7, <span class="stringliteral">"strset"</span>, {<span class="stringliteral">"hello"</span>, <span class="stringliteral">"there"</span>, <span class="stringliteral">"world"</span>});
edje.messagesend(7, <span class="stringliteral">"intset"</span>, {1, 2, 3});
edje.messagesend(7, <span class="stringliteral">"floatset"</span>, {1.1, 2.2, 3.3});
edje.messagesend(7, <span class="stringliteral">"strint"</span>, <span class="stringliteral">"hello world"</span>, 7);
edje.messagesend(7, <span class="stringliteral">"strfloat"</span>, <span class="stringliteral">"hello world"</span>, 7.654);
edje.messagesend(7, <span class="stringliteral">"strintset"</span>,<span class="stringliteral">"hello world"</span>, {1, 2, 3});
D.rect = edje.rect();
D.rect:geom (5, 10, 50, 30);
D.rect:color (255, 128, 60, 255);
D.rect:show ();
D.rect2 = edje.rect();
D.rect2:geom (50, 50, 50, 50);
D.rect2:color (20, 30, 60, 120);
D.rect2:show ();
D.clip = edje.rect();
D.clip:geom (10, 10, 150, 150);
D.clip:color (200, 200, 50, 200);
D.clip:show ();
D.rect2:clip(D.clip);
D.rect:clip(D.clip);
--<span class="comment">// example of deleting something</span>
--<span class="comment">// D.tim:del();</span>
--<span class="comment">// shutdown func - generally empty or not there. everything gcd for you</span>
function shutdown ()
print(<span class="stringliteral">"lua::shutdown ... "</span> .. D.val);
end
function show ()
print(<span class="stringliteral">"lua::show ... "</span> .. D.val);
end
function hide ()
print(<span class="stringliteral">"lua::hide ... "</span> .. D.val);
end
function move (x, y)
print(<span class="stringliteral">"lua::move ... "</span> .. D.val);
print(<span class="stringliteral">" x="</span> .. x .. <span class="stringliteral">" x="</span> .. y);
end
function resize (w, h)
print(<span class="stringliteral">"lua::resize ... "</span> .. D.val);
print(<span class="stringliteral">" w="</span> .. w .. <span class="stringliteral">" h="</span> .. h);
end
function message (<span class="keywordtype">id</span>, <a name="a1"></a><a class="code" href="edje__data_8c.html#a0dae2edc8bfd2bedabfa38415c35f3ec">type</a>, v1, v2)
print(<span class="stringliteral">"lua::message ... "</span> .. D.val);
print(<span class="stringliteral">" id="</span> .. <span class="keywordtype">id</span> .. <span class="stringliteral">" type="</span> .. <a class="code" href="edje__data_8c.html#a0dae2edc8bfd2bedabfa38415c35f3ec">type</a>);
--<span class="comment">// handle youre message type here. chekc id + type then use v1</span>
--<span class="comment">// and/or v2 (or neither) appropriately. they are the same as</span>
--<span class="comment">// the 2nd and 3rd param passed to edje.messagesend() (if any</span>
--<span class="comment">// are passed at all)</span>
end
function signal (sig, src)
print(<span class="stringliteral">"lua::signal ... "</span> .. D.val);
print(<span class="stringliteral">" sig="</span> .. sig .. <span class="stringliteral">" src="</span> .. src);
end
}
}
}
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<td class="generated">Docs generated Tue Feb 8 2011 17:28:42</td>
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