

In this example, we illustrate how to create and handle Evas smart {\bfseries{interfaces}}. Note that we use the same code base of the \mbox{\hyperlink{Example_Evas_Smart_Objects}{Evas object smart objects}} example, here. We just augment it with an interfaces demonstration.

A smart interface is just a functions interface a given smart object is declaring to support and or use. In Evas, interfaces are very simple\+: no interface inheritance, no interface overriding. Their purpose is to extend an object\textquotesingle{}s capabilities and behavior beyond the sub-\/classing schema.

Here, together with a custom smart object, we create and declare the object as using an Evas interface. It\textquotesingle{}ll have a custom function, too, besides the {\ttfamily add()} and del() obligatory ones. To demonstrate interface data, which is bound to object {\bfseries{instances}}, we\textquotesingle{}ll have a string as this data.

Here is where we declare our interface\+: 
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\DoxyCodeLine{\textcolor{keyword}{static}\ \textcolor{keyword}{const}\ \textcolor{keywordtype}{char}\ iface1\_data[]\ =\ \textcolor{stringliteral}{"{}iface1\_data"{}};}
\DoxyCodeLine{\textcolor{keyword}{static}\ \textcolor{keyword}{const}\ \textcolor{keywordtype}{char}\ IFACE1\_NAME[]\ =\ \textcolor{stringliteral}{"{}iface1"{}};}
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\DoxyCodeLine{\textcolor{keyword}{static}\ \mbox{\hyperlink{group__Eina__Types__Group_ga3fe0caf72e93b1bab1ca8ee3ccf3f226}{Eina\_Bool}}\ \_iface1\_add(\mbox{\hyperlink{group__Evas__Object__Group_ga9e19e6dd1f517a0ba437c0114d3e7c97}{Evas\_Object}}\ *);}
\DoxyCodeLine{\textcolor{keyword}{static}\ \textcolor{keywordtype}{void}\ \ \ \ \ \ \_iface1\_del(\mbox{\hyperlink{group__Evas__Object__Group_ga9e19e6dd1f517a0ba437c0114d3e7c97}{Evas\_Object}}\ *);}
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\DoxyCodeLine{\textcolor{keyword}{typedef}\ \textcolor{keyword}{struct\ }\_Evas\_Smart\_Example\_Interface\ Evas\_Smart\_Example\_Interface;}
\DoxyCodeLine{\textcolor{keyword}{struct\ }\_Evas\_Smart\_Example\_Interface}
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\DoxyCodeLine{\ \ \ \mbox{\hyperlink{struct__Evas__Smart__Interface}{Evas\_Smart\_Interface}}\ base;}
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\DoxyCodeLine{\textcolor{keyword}{static}\ Evas\_Smart\_Example\_Interface\ iface1;}
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\DoxyCodeLine{\{}
\DoxyCodeLine{\ \ \ printf(\textcolor{stringliteral}{"{}iface1's\ add()!\(\backslash\)n"{}});}
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\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ (\textcolor{keywordtype}{char}\ *)\mbox{\hyperlink{group__Evas__Smart__Object__Group_gab610d4c40ac4ab96ddd79dea2fa7291c}{evas\_object\_smart\_interface\_data\_get}}}
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\DoxyCodeLine{\textcolor{keyword}{static}\ \textcolor{keyword}{const}\ \mbox{\hyperlink{struct__Evas__Smart__Interface}{Evas\_Smart\_Interface}}\ *\_smart\_interfaces[]\ =}
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\end{DoxyCodeInclude}
 Note that there\textquotesingle{}s error checking for interfaces creation, by means of the {\ttfamily add()} method\textquotesingle{}s return value ({\ttfamily \+\_\+iface1\+\_\+add()}, here).

Now note that here we are filling in the interface\textquotesingle{}s fields dynamically. Let\textquotesingle{}s move on to that code region\+:

 
\begin{DoxyCodeInclude}{0}
\DoxyCodeLine{\ \ \ iface\ =\ (Evas\_Smart\_Example\_Interface\ *)\&iface1;}
\DoxyCodeLine{\ \ \ iface-\/>base.name\ =\ IFACE1\_NAME;}
\DoxyCodeLine{\ \ \ iface-\/>base.private\_size\ =\ \textcolor{keyword}{sizeof}(iface1\_data);}
\DoxyCodeLine{\ \ \ iface-\/>base.add\ =\ \_iface1\_add;}
\DoxyCodeLine{\ \ \ iface-\/>base.del\ =\ \_iface1\_del;}
\DoxyCodeLine{\ \ \ iface-\/>example\_func\ =\ \_iface1\_custom\_fn;}
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\DoxyCodeLine{\ \ \ d.smt\ =\ evas\_smart\_example\_add(d.evas);}

\end{DoxyCodeInclude}
 As important as setting the function pointers, is declaring the {\ttfamily private\+\_\+size} as to match exactly the size of the data blob we want to have allocated for us by Evas. This will happen automatically inside {\ttfamily evas\+\_\+smart\+\_\+example\+\_\+add()}. Later, on this code, we deal exactly with that data blob, more specifically writing on it (as it\textquotesingle{}s not done inside {\ttfamily \+\_\+iface1\+\_\+add()}, here\+:

 
\begin{DoxyCodeInclude}{0}
\DoxyCodeLine{\ \ \ iface\ =\ (Evas\_Smart\_Example\_Interface\ *)\mbox{\hyperlink{group__Evas__Smart__Object__Group_gaeeb4c0d778a3f2ca84040d8735d759ed}{evas\_object\_smart\_interface\_get}}}
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\DoxyCodeLine{\ \ \ \ \ \{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \textcolor{keywordtype}{char}\ *data;}
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\DoxyCodeLine{\ \ \ \ \ \ \ \ printf(\textcolor{stringliteral}{"{}We've\ found\ a\ smart\ interface\ on\ the\ smart\ object!"{}}}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \textcolor{stringliteral}{"{}\(\backslash\)n\(\backslash\)tname:\ \%s\(\backslash\)n"{}},\ iface-\/>base.name);}
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\DoxyCodeLine{\ \ \ \ \ \ \ \ printf(\textcolor{stringliteral}{"{}Setting\ its\ interface\ data...\(\backslash\)n"{}});}
\DoxyCodeLine{\ \ \ \ \ \ \ \ data\ =\ \mbox{\hyperlink{group__Evas__Smart__Object__Group_gab610d4c40ac4ab96ddd79dea2fa7291c}{evas\_object\_smart\_interface\_data\_get}}}
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\DoxyCodeLine{\ \ \ \ \ \ \ \ memcpy(data,\ iface1\_data,\ \textcolor{keyword}{sizeof}(iface1\_data));}
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\DoxyCodeLine{\ \ \ \ \ \ \ \ printf(\textcolor{stringliteral}{"{}Calling\ an\ interface's\ function...\(\backslash\)n"{}});}
\DoxyCodeLine{\ \ \ \ \ \ \ \ iface-\/>example\_func(d.smt);}
\DoxyCodeLine{\ \ \ \ \ \}}

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 Before accessing the interface data, we exercise the interface fetching call \mbox{\hyperlink{group__Evas__Smart__Object__Group_gaeeb4c0d778a3f2ca84040d8735d759ed}{evas\+\_\+object\+\_\+smart\+\_\+interface\+\_\+get()}}, with the name string we used to be interface\textquotesingle{}s name. With that handle in hands, we issue \mbox{\hyperlink{group__Evas__Smart__Object__Group_gab610d4c40ac4ab96ddd79dea2fa7291c}{evas\+\_\+object\+\_\+smart\+\_\+interface\+\_\+data\+\_\+get()}} and write the string we want as data on that memory region. That will make up for the string you get on {\ttfamily \+\_\+iface1\+\_\+del()}.

The full example follows.


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\DoxyCodeLine{\ \ \ \ \ \ \ fflush(stderr);\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \(\backslash\)}
\DoxyCodeLine{\ \ \ \ \ \ \ abort();\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \(\backslash\)}
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\DoxyCodeLine{\{}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Ecore__Main__Loop__Group_ga95cf8e97dff0716433c2c5474d606a98}{ecore\_main\_loop\_quit}}();}
\DoxyCodeLine{\}}
\DoxyCodeLine{}
\DoxyCodeLine{\textcolor{comment}{/*\ Keep\ the\ example's\ window\ size\ in\ sync\ with\ the\ background\ image's\ size\ */}}
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\DoxyCodeLine{\_canvas\_resize\_cb(Ecore\_Evas\ *ee)}
\DoxyCodeLine{\{}
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\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Ecore__Evas__Group_ga931aadf4603731e73e8a84e4b14f1493}{ecore\_evas\_geometry\_get}}(ee,\ NULL,\ NULL,\ \&w,\ \&h);}
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\DoxyCodeLine{}
\DoxyCodeLine{\textcolor{keyword}{static}\ \textcolor{keywordtype}{void}}
\DoxyCodeLine{\_on\_child\_del(\textcolor{keywordtype}{void}\ *data,}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \mbox{\hyperlink{group__Evas__Canvas_ga5ff87cc4ce6bc43e3b640a6d37f73043}{Evas}}\ *evas\ \mbox{\hyperlink{group__Eina__Types__Group_ga82d751be730f849719ca292f9558be87}{EINA\_UNUSED}},}
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\DoxyCodeLine{\ \ \ EVAS\_SMART\_EXAMPLE\_DATA\_GET(example\_smart,\ priv);}
\DoxyCodeLine{}
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\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{if}\ (priv-\/>children[1])}
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\DoxyCodeLine{\textcolor{comment}{/*\ setting\ our\ smart\ interface\ */}}
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\DoxyCodeLine{\ \ \ \textcolor{comment}{/*\ specializing\ these\ two\ */}}
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\DoxyCodeLine{}
\DoxyCodeLine{\textcolor{comment}{/*\ BEGINS\ example\ smart\ object's\ own\ interface\ */}}
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\DoxyCodeLine{\textcolor{comment}{/*\ add\ a\ new\ example\ smart\ object\ to\ a\ canvas\ */}}
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\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{return}\ \mbox{\hyperlink{group__Evas__Smart__Object__Group_ga6689aaee0f614404be7dc7c3d31a23e0}{evas\_object\_smart\_add}}(evas,\ \_evas\_smart\_example\_smart\_class\_new());}
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\DoxyCodeLine{\ \ \ \textcolor{keywordtype}{long}\ idx;}
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\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{return}\ child;}
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\DoxyCodeLine{\textcolor{comment}{\ *\ smart\ object\ or\ NULL,\ if\ any\ (or\ on\ errors)\ */}}
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\DoxyCodeLine{\{}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Evas__Object__Group_ga9e19e6dd1f517a0ba437c0114d3e7c97}{Evas\_Object}}\ *ret\ =\ NULL;}
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\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{if}\ (!child)}
\DoxyCodeLine{\ \ \ \ \ \textcolor{keywordflow}{return}\ NULL;}
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\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{if}\ (priv-\/>children[1]\ ==\ child)}
\DoxyCodeLine{\ \ \ \ \ \{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ fprintf(stderr,\ \textcolor{stringliteral}{"{}You\ mustn't\ place\ a\ child\ on\ both\ slots\ of"{}}}
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\DoxyCodeLine{\ \ \ \ \ \ \ \ \textcolor{keywordflow}{return}\ NULL;}
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\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{if}\ (priv-\/>children[0])}
\DoxyCodeLine{\ \ \ \ \ \{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \textcolor{keywordflow}{if}\ (priv-\/>children[0]\ !=\ child)}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \{}
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\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \ \ \ \_evas\_smart\_example\_remove\_do(priv,\ priv-\/>children[0],\ 0);}
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\DoxyCodeLine{\ \ \ \ \ \ \ \ \textcolor{keywordflow}{else}\ \textcolor{keywordflow}{return}\ child;}
\DoxyCodeLine{\ \ \ \ \ \}}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ priv-\/>children[0]\ =\ child;}
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\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Evas__Smart__Object__Group_gaaba101400666797eabd678727b48f7c1}{evas\_object\_smart\_member\_add}}(child,\ o);}
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\DoxyCodeLine{}
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\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{if}\ (!ret)}
\DoxyCodeLine{\ \ \ \ \ \{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \mbox{\hyperlink{group__Evas__Smart__Object__Group_ga684daaa265375789a2e0f2fa15333512}{evas\_object\_smart\_callback\_call}}(}
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\DoxyCodeLine{\ \ \ \ \ \}}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{return}\ ret;}
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\DoxyCodeLine{}
\DoxyCodeLine{\textcolor{comment}{/*\ set\ to\ return\ any\ previous\ object\ set\ to\ the\ right\ position\ of\ the}}
\DoxyCodeLine{\textcolor{comment}{\ *\ smart\ object\ or\ NULL,\ if\ any\ (or\ on\ errors)\ */}}
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\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{if}\ (!child)}
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\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{if}\ (priv-\/>children[0]\ ==\ child)}
\DoxyCodeLine{\ \ \ \ \ \{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ fprintf(stderr,\ \textcolor{stringliteral}{"{}You\ mustn't\ place\ a\ child\ on\ both\ slots\ of"{}}}
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\DoxyCodeLine{\ \ \ \ \ \}}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{if}\ (priv-\/>children[1])}
\DoxyCodeLine{\ \ \ \ \ \{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \textcolor{keywordflow}{if}\ (priv-\/>children[1]\ !=\ child)}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \{}
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\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \ \ \ \_evas\_smart\_example\_remove\_do(priv,\ priv-\/>children[1],\ 1);}
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\DoxyCodeLine{\ \ \ \ \ \}}
\DoxyCodeLine{}
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\DoxyCodeLine{}
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\DoxyCodeLine{\ \ \ \ \ \{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \mbox{\hyperlink{group__Evas__Smart__Object__Group_ga684daaa265375789a2e0f2fa15333512}{evas\_object\_smart\_callback\_call}}(}
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\DoxyCodeLine{}
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\DoxyCodeLine{}
\DoxyCodeLine{\textcolor{comment}{/*\ END\ OF\ example\ smart\ object's\ own\ interface\ */}}
\DoxyCodeLine{}
\DoxyCodeLine{\textcolor{keyword}{static}\ \textcolor{keywordtype}{void}}
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\DoxyCodeLine{\{}
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\DoxyCodeLine{\ \ \ \ \ \ \ \ \_on\_destroy(NULL);}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \textcolor{keywordflow}{return};}
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\DoxyCodeLine{\ \ \ \ \ \{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ printf(\textcolor{stringliteral}{"{}\%s\(\backslash\)n"{}},\ commands);}
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\DoxyCodeLine{\ \ \ \ \ \}}
\DoxyCodeLine{}
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\DoxyCodeLine{\ \ \ \ \ \{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \textcolor{keywordflow}{if}\ (d.rects[0])}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \{}
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\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \{}
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\DoxyCodeLine{}
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\DoxyCodeLine{\ \ \ \ \ \ \ \ d.rects[0]\ =\ rect;}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ printf(\textcolor{stringliteral}{"{}Setting\ smart\ object's\ left\ spot\ with\ a\ new"{}}}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \textcolor{stringliteral}{"{}\ rectangle.\(\backslash\)n"{}});}
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\DoxyCodeLine{\ \ \ \ \ \ \ \ \textcolor{keywordflow}{if}\ (prev)}
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\DoxyCodeLine{\ \ \ \ \ \ \ \ d.rects[1]\ =\ rect;}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ printf(\textcolor{stringliteral}{"{}Setting\ smart\ object's\ right\ spot\ with\ a\ new"{}}}
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\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \ \ \ printf(\textcolor{stringliteral}{"{}Deleting\ previous\ right\ child,"{}}}
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\DoxyCodeLine{\ \ \ \ \ \{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \mbox{\hyperlink{Evas__Common_8h_a2453e92182bad3b0e0d84e5aff433b07}{Evas\_Coord}}\ x,\ y;}
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\DoxyCodeLine{\ \ \ \ \ \ \ \ \mbox{\hyperlink{group__Evas__Object__Group_ga335c8ee6eaeaac9710656af4f8b0db91}{evas\_object\_move}}(d.smt,\ x,\ y);}
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\DoxyCodeLine{\ \ \ \ \ \}}
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\DoxyCodeLine{\ \ \ \ \ \{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \mbox{\hyperlink{Evas__Common_8h_a2453e92182bad3b0e0d84e5aff433b07}{Evas\_Coord}}\ w,\ h;}
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\DoxyCodeLine{\ \ \ \ \ \ \ \ \textcolor{keywordflow}{return};}
\DoxyCodeLine{\ \ \ \ \ \}}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \textcolor{comment}{/*\ decrease\ smart\ object's\ size\ */}}
\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{if}\ (strcmp(ev-\/>\mbox{\hyperlink{struct__Evas__Event__Key__Down_a70473bba88a1afaee180a54150513824}{key}},\ \textcolor{stringliteral}{"{}d"{}})\ ==\ 0)}
\DoxyCodeLine{\ \ \ \ \ \{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \mbox{\hyperlink{Evas__Common_8h_a2453e92182bad3b0e0d84e5aff433b07}{Evas\_Coord}}\ w,\ h;}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \mbox{\hyperlink{group__Evas__Object__Group__Basic_ga6e8e78e110392480dd612df86a16b630}{evas\_object\_geometry\_get}}(d.smt,\ NULL,\ NULL,\ \&w,\ \&h);}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ w\ *=\ 0.9;}
\DoxyCodeLine{\ \ \ \ \ \ \ \ h\ *=\ 0.9;}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \mbox{\hyperlink{group__Evas__Object__Group_gacad94595f83580c18908cb3b69b08d1a}{evas\_object\_resize}}(d.smt,\ w,\ h);}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \textcolor{keywordflow}{return};}
\DoxyCodeLine{\ \ \ \ \ \}}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \textcolor{comment}{/*\ change\ smart\ object's\ clipper\ color\ */}}
\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{if}\ (strcmp(ev-\/>\mbox{\hyperlink{struct__Evas__Event__Key__Down_a70473bba88a1afaee180a54150513824}{key}},\ \textcolor{stringliteral}{"{}c"{}})\ ==\ 0)}
\DoxyCodeLine{\ \ \ \ \ \{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ cur\_color\ =\ (cur\_color\ +\ 1)\ \%\ 4;}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \mbox{\hyperlink{group__Evas__Object__Group__Basic_gab751e9d24c16e74af6f7c08ea5b930c2}{evas\_object\_color\_set}}(}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ d.clipper,\ clipper\_colors[cur\_color].r,\ clipper\_colors[cur\_color].g,}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ clipper\_colors[cur\_color].b,\ clipper\_colors[cur\_color].a);}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ fprintf(stderr,\ \textcolor{stringliteral}{"{}Changing\ clipper's\ color\ to\ \%s\(\backslash\)n"{}},}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \_index\_to\_color(cur\_color));}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \textcolor{keywordflow}{return};}
\DoxyCodeLine{\ \ \ \ \ \}}
\DoxyCodeLine{\}}
\DoxyCodeLine{}
\DoxyCodeLine{\textcolor{keyword}{static}\ \textcolor{keywordtype}{void}}
\DoxyCodeLine{\textcolor{comment}{/*\ callback\ on\ number\ of\ member\ objects\ changed\ */}}
\DoxyCodeLine{\_on\_example\_smart\_object\_child\_num\_change(\textcolor{keywordtype}{void}\ *data\ \mbox{\hyperlink{group__Eina__Types__Group_ga82d751be730f849719ca292f9558be87}{EINA\_UNUSED}},}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \mbox{\hyperlink{group__Evas__Object__Group_ga9e19e6dd1f517a0ba437c0114d3e7c97}{Evas\_Object}}\ *obj\ \mbox{\hyperlink{group__Eina__Types__Group_ga82d751be730f849719ca292f9558be87}{EINA\_UNUSED}},}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \textcolor{keywordtype}{void}\ *event\_info)}
\DoxyCodeLine{\{}
\DoxyCodeLine{\ \ \ printf(\textcolor{stringliteral}{"{}Number\ of\ child\ members\ on\ our\ example\ smart"{}}}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \textcolor{stringliteral}{"{}\ object\ changed\ to\ \%llu\(\backslash\)n"{}},\ (\textcolor{keywordtype}{unsigned}\ \textcolor{keywordtype}{long}\ \textcolor{keywordtype}{long})(uintptr\_t)event\_info);}
\DoxyCodeLine{\}}
\DoxyCodeLine{}
\DoxyCodeLine{\textcolor{keywordtype}{int}}
\DoxyCodeLine{main(\textcolor{keywordtype}{void})}
\DoxyCodeLine{\{}
\DoxyCodeLine{\ \ \ \textcolor{keyword}{const}\ \mbox{\hyperlink{struct__Evas__Smart__Cb__Description}{Evas\_Smart\_Cb\_Description}}\ **descriptions;}
\DoxyCodeLine{\ \ \ Evas\_Smart\_Example\_Interface\ *iface;}
\DoxyCodeLine{\ \ \ \textcolor{keywordtype}{unsigned}\ \textcolor{keywordtype}{int}\ count;}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Eina__Types__Group_ga3fe0caf72e93b1bab1ca8ee3ccf3f226}{Eina\_Bool}}\ ret;}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{if}\ (!\mbox{\hyperlink{group__Ecore__Evas__Group_ga32ddbb6457033ad435a177eb0c4fe235}{ecore\_evas\_init}}())}
\DoxyCodeLine{\ \ \ \ \ \textcolor{keywordflow}{return}\ EXIT\_FAILURE;}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \textcolor{comment}{/*\ this\ will\ give\ you\ a\ window\ with\ an\ Evas\ canvas\ under\ the\ first}}
\DoxyCodeLine{\textcolor{comment}{\ \ \ \ *\ engine\ available\ */}}
\DoxyCodeLine{\ \ \ d.ee\ =\ \mbox{\hyperlink{group__Ecore__Evas__Group_gaaa770b6f2f1395f9eeb0e50e26c3f933}{ecore\_evas\_new}}(NULL,\ 10,\ 10,\ WIDTH,\ HEIGHT,\ NULL);}
\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{if}\ (!d.ee)}
\DoxyCodeLine{\ \ \ \ \ \textcolor{keywordflow}{goto}\ error;}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Ecore__Evas__Group_ga3680b5c89157167318192157a5d24ec4}{ecore\_evas\_callback\_destroy\_set}}(d.ee,\ \_on\_destroy);}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Ecore__Evas__Group_gaac67f679c9027059a34519fbdea360df}{ecore\_evas\_callback\_resize\_set}}(d.ee,\ \_canvas\_resize\_cb);}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Ecore__Evas__Group_ga4953047ff97d4f1b0d75a7d513d4f317}{ecore\_evas\_show}}(d.ee);}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \textcolor{comment}{/*\ the\ canvas\ pointer,\ de\ facto\ */}}
\DoxyCodeLine{\ \ \ d.evas\ =\ \mbox{\hyperlink{group__Ecore__Evas__Group_ga6f8d214cd55bc940d7cc62fecd8dbc06}{ecore\_evas\_get}}(d.ee);}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ d.bg\ =\ \mbox{\hyperlink{group__Evas__Object__Rectangle_ga1b7a9d8e6ce240590c1734da5f3449d2}{evas\_object\_rectangle\_add}}(d.evas);}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Evas__Object__Group__Basic_gab751e9d24c16e74af6f7c08ea5b930c2}{evas\_object\_color\_set}}(d.bg,\ 255,\ 255,\ 255,\ 255);}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Evas__Object__Group_ga335c8ee6eaeaac9710656af4f8b0db91}{evas\_object\_move}}(d.bg,\ 0,\ 0);}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Evas__Object__Group_gacad94595f83580c18908cb3b69b08d1a}{evas\_object\_resize}}(d.bg,\ WIDTH,\ HEIGHT);}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Evas__Object__Group__Basic_ga07208fcafd4739de606bc35fff684bf5}{evas\_object\_show}}(d.bg);}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ iface\ =\ (Evas\_Smart\_Example\_Interface\ *)\&iface1;}
\DoxyCodeLine{\ \ \ iface-\/>base.name\ =\ IFACE1\_NAME;}
\DoxyCodeLine{\ \ \ iface-\/>base.private\_size\ =\ \textcolor{keyword}{sizeof}(iface1\_data);}
\DoxyCodeLine{\ \ \ iface-\/>base.add\ =\ \_iface1\_add;}
\DoxyCodeLine{\ \ \ iface-\/>base.del\ =\ \_iface1\_del;}
\DoxyCodeLine{\ \ \ iface-\/>example\_func\ =\ \_iface1\_custom\_fn;}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ d.smt\ =\ evas\_smart\_example\_add(d.evas);}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Evas__Object__Group_ga335c8ee6eaeaac9710656af4f8b0db91}{evas\_object\_move}}(d.smt,\ WIDTH\ /\ 4,\ HEIGHT\ /\ 4);}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Evas__Object__Group_gacad94595f83580c18908cb3b69b08d1a}{evas\_object\_resize}}(d.smt,\ WIDTH\ /\ 2,\ HEIGHT\ /\ 2);}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Evas__Object__Group__Basic_ga07208fcafd4739de606bc35fff684bf5}{evas\_object\_show}}(d.smt);}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ ret\ =\ \mbox{\hyperlink{group__Evas__Smart__Object__Group_ga22801632fbc3f349b5b4f976381afc62}{evas\_object\_smart\_type\_check}}(d.smt,\ \_evas\_smart\_example\_type);}
\DoxyCodeLine{\ \ \ printf(\textcolor{stringliteral}{"{}Adding\ smart\ object\ of\ type\ \(\backslash\)"{}\%s\(\backslash\)"{}\ to\ the\ canvas:\ \%s.\(\backslash\)n"{}},}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \ \_evas\_smart\_example\_type,\ ret\ ?\ \textcolor{stringliteral}{"{}success"{}}\ :\ \textcolor{stringliteral}{"{}failure"{}});}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ d.clipper\ =\ \mbox{\hyperlink{group__Evas__Smart__Object__Group_ga10342ef3dfaa95ffd70b2883f0be531d}{evas\_object\_smart\_clipped\_clipper\_get}}(d.smt);}
\DoxyCodeLine{\ \ \ printf(\textcolor{stringliteral}{"{}Checking\ if\ clipped\ smart\ object's\ clipper\ is\ a\ "{}}}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \textcolor{stringliteral}{"{}\(\backslash\)"{}static\(\backslash\)"{}\ one:\ \%s\(\backslash\)n"{}},}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \mbox{\hyperlink{group__Evas__Object__Group_gaa6b17176deac52b4c52b4380a9a8778a}{evas\_object\_static\_clip\_get}}(d.clipper)\ ?\ \textcolor{stringliteral}{"{}yes"{}}\ :\ \textcolor{stringliteral}{"{}no"{}});}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Evas__Object__Group__Basic_gab751e9d24c16e74af6f7c08ea5b930c2}{evas\_object\_color\_set}}(}
\DoxyCodeLine{\ \ \ \ \ d.clipper,\ clipper\_colors[cur\_color].r,\ clipper\_colors[cur\_color].g,}
\DoxyCodeLine{\ \ \ \ \ clipper\_colors[cur\_color].b,\ clipper\_colors[cur\_color].a);}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Evas__Smart__Object__Group_ga6f2cc793ce222baa338d1f976ad15e67}{evas\_object\_smart\_callbacks\_descriptions\_get}}(}
\DoxyCodeLine{\ \ \ \ \ d.smt,\ \&descriptions,\ \&count,\ NULL,\ NULL);}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{for}\ (;\ *descriptions;\ descriptions++)}
\DoxyCodeLine{\ \ \ \ \ \{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ printf(\textcolor{stringliteral}{"{}We've\ found\ a\ smart\ callback\ on\ the\ smart\ object!"{}}}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \textcolor{stringliteral}{"{}\(\backslash\)n\(\backslash\)tname:\ \%s\(\backslash\)n\(\backslash\)ttype:\ \%s\(\backslash\)n"{}},\ (*descriptions)-\/>name,}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ (*descriptions)-\/>type);}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \textcolor{keywordflow}{if}\ (strcmp((*descriptions)-\/>type,\ \textcolor{stringliteral}{"{}i"{}}))\ \textcolor{keywordflow}{continue};}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \textcolor{comment}{/*\ we\ know\ we\ don't\ have\ other\ types\ of\ smart\ callbacks}}
\DoxyCodeLine{\textcolor{comment}{\ \ \ \ \ \ \ \ \ *\ here,\ just\ playing\ with\ it\ */}}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \textcolor{comment}{/*\ for\ now,\ we\ know\ the\ only\ one\ callback\ is\ the\ one}}
\DoxyCodeLine{\textcolor{comment}{\ \ \ \ \ \ \ \ \ *\ reporting\ number\ of\ member\ objects\ changed\ on\ the}}
\DoxyCodeLine{\textcolor{comment}{\ \ \ \ \ \ \ \ \ *\ example\ smart\ object\ */}}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \mbox{\hyperlink{group__Evas__Smart__Object__Group_gac12dd6655f488cc47ce6cf00eb7d12b2}{evas\_object\_smart\_callback\_add}}(}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ d.smt,\ (*descriptions)-\/>name,}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \_on\_example\_smart\_object\_child\_num\_change,\ NULL);}
\DoxyCodeLine{\ \ \ \ \ \}}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Evas__Object__Group_gac6d65f8896ab59780553676d0017c2ef}{evas\_object\_focus\_set}}(d.bg,\ \mbox{\hyperlink{group__Eina__Types__Group_ga05c12dacc8b4058994df842b41be85fc}{EINA\_TRUE}});}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Evas__Object__Group__Events_gac71a1038dad71da36f57b70c8ad10252}{evas\_object\_event\_callback\_add}}(}
\DoxyCodeLine{\ \ \ \ \ d.bg,\ \mbox{\hyperlink{Evas__Common_8h_ad64cde0da38a60e7cb7905b3ab216968a336b86bad4f145f84c155e4922335584}{EVAS\_CALLBACK\_KEY\_DOWN}},\ \_on\_keydown,\ NULL);}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ iface\ =\ (Evas\_Smart\_Example\_Interface\ *)\mbox{\hyperlink{group__Evas__Smart__Object__Group_gaeeb4c0d778a3f2ca84040d8735d759ed}{evas\_object\_smart\_interface\_get}}}
\DoxyCodeLine{\ \ \ \ \ \ \ (d.smt,\ IFACE1\_NAME);}
\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{if}\ (iface)}
\DoxyCodeLine{\ \ \ \ \ \{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \textcolor{keywordtype}{char}\ *data;}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ printf(\textcolor{stringliteral}{"{}We've\ found\ a\ smart\ interface\ on\ the\ smart\ object!"{}}}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \textcolor{stringliteral}{"{}\(\backslash\)n\(\backslash\)tname:\ \%s\(\backslash\)n"{}},\ iface-\/>base.name);}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ printf(\textcolor{stringliteral}{"{}Setting\ its\ interface\ data...\(\backslash\)n"{}});}
\DoxyCodeLine{\ \ \ \ \ \ \ \ data\ =\ \mbox{\hyperlink{group__Evas__Smart__Object__Group_gab610d4c40ac4ab96ddd79dea2fa7291c}{evas\_object\_smart\_interface\_data\_get}}}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \ \ (d.smt,\ (\mbox{\hyperlink{struct__Evas__Smart__Interface}{Evas\_Smart\_Interface}}\ *)iface);}
\DoxyCodeLine{\ \ \ \ \ \ \ \ memcpy(data,\ iface1\_data,\ \textcolor{keyword}{sizeof}(iface1\_data));}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \ \ \ \ \ printf(\textcolor{stringliteral}{"{}Calling\ an\ interface's\ function...\(\backslash\)n"{}});}
\DoxyCodeLine{\ \ \ \ \ \ \ \ iface-\/>example\_func(d.smt);}
\DoxyCodeLine{\ \ \ \ \ \}}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ printf(\textcolor{stringliteral}{"{}\%s\(\backslash\)n"{}},\ commands);}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Ecore__Main__Loop__Group_gaf103b9f668bb3e4fed12e52c6180132d}{ecore\_main\_loop\_begin}}();}
\DoxyCodeLine{}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Ecore__Evas__Group_gad3ec61f2aa03df4d3dbfd0d311e0c8dc}{ecore\_evas\_free}}(d.ee);}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Ecore__Evas__Group_gab8fa311077f749190c9b622f672b2214}{ecore\_evas\_shutdown}}();}
\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{return}\ 0;}
\DoxyCodeLine{}
\DoxyCodeLine{error:}
\DoxyCodeLine{\ \ \ fprintf(stderr,\ \textcolor{stringliteral}{"{}error:\ Requires\ at\ least\ one\ Evas\ engine\ built\ and\ linked"{}}}
\DoxyCodeLine{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \textcolor{stringliteral}{"{}\ to\ ecore-\/evas\ for\ this\ example\ to\ run\ properly.\(\backslash\)n"{}});}
\DoxyCodeLine{\ \ \ \mbox{\hyperlink{group__Ecore__Evas__Group_gab8fa311077f749190c9b622f672b2214}{ecore\_evas\_shutdown}}();}
\DoxyCodeLine{\ \ \ \textcolor{keywordflow}{return}\ -\/1;}
\DoxyCodeLine{\}}

\end{DoxyCodeInclude}
 