\hypertarget{edje-drag_8c-example}{}\section{edje-\/drag.\+c}

\begin{DoxyCodeInclude}

\textcolor{preprocessor}{#ifdef HAVE\_CONFIG\_H}
\textcolor{preprocessor}{# include "config.h"}
\textcolor{preprocessor}{#else}
\textcolor{preprocessor}{# define EINA\_UNUSED}
\textcolor{preprocessor}{#endif}

\textcolor{preprocessor}{#ifndef PACKAGE\_DATA\_DIR}
\textcolor{preprocessor}{#define PACKAGE\_DATA\_DIR "."}
\textcolor{preprocessor}{#endif}

\textcolor{preprocessor}{#include <Ecore.h>}
\textcolor{preprocessor}{#include <\mbox{\hyperlink{Ecore__Evas_8h}{Ecore\_Evas.h}}>}
\textcolor{preprocessor}{#include <\mbox{\hyperlink{Edje_8h}{Edje.h}}>}

\textcolor{preprocessor}{#define WIDTH  300}
\textcolor{preprocessor}{#define HEIGHT 300}

\textcolor{keyword}{static} \textcolor{keyword}{const} \textcolor{keywordtype}{char} commands[] = \(\backslash\)
  \textcolor{stringliteral}{"commands are:\(\backslash\)n"}
  \textcolor{stringliteral}{"\(\backslash\)tDown - set drag step to 1\(\backslash\)n"}
  \textcolor{stringliteral}{"\(\backslash\)tUp - set drag step to -1\(\backslash\)n"}
  \textcolor{stringliteral}{"\(\backslash\)tm - set drag value to 0.5\(\backslash\)n"}
  \textcolor{stringliteral}{"\(\backslash\)tPrior - set drag page to -1\(\backslash\)n"}
  \textcolor{stringliteral}{"\(\backslash\)tNext - set drag page to -1\(\backslash\)n"}
  \textcolor{stringliteral}{"\(\backslash\)tEsc - exit\(\backslash\)n"}
  \textcolor{stringliteral}{"\(\backslash\)th - print help\(\backslash\)n"};

\textcolor{keyword}{static} \textcolor{keyword}{const} \textcolor{keywordtype}{char} *PARTNAME = \textcolor{stringliteral}{"example/knob"};

\textcolor{keyword}{static} \textcolor{keywordtype}{void}
\_on\_destroy(Ecore\_Evas *ee \mbox{\hyperlink{group__Eina__Types__Group_ga82d751be730f849719ca292f9558be87}{EINA\_UNUSED}})
\{
   \mbox{\hyperlink{group__Ecore__Main__Loop__Group_ga95cf8e97dff0716433c2c5474d606a98}{ecore\_main\_loop\_quit}}();
\}

\textcolor{comment}{/* here just to keep our example's window size and background image's}
\textcolor{comment}{ * size in synchrony */}
\textcolor{keyword}{static} \textcolor{keywordtype}{void}
\_on\_canvas\_resize(Ecore\_Evas *ee)
\{
   \mbox{\hyperlink{group__Evas__Object__Group_ga9e19e6dd1f517a0ba437c0114d3e7c97}{Evas\_Object}} *bg;
   \mbox{\hyperlink{group__Evas__Object__Group_ga9e19e6dd1f517a0ba437c0114d3e7c97}{Evas\_Object}} *edje\_obj;
   \textcolor{keywordtype}{int}          w;
   \textcolor{keywordtype}{int}          h;

   bg = \mbox{\hyperlink{group__Ecore__Evas__Group_gae00d4a4feb8aec5de03e464fe21a1d30}{ecore\_evas\_data\_get}}(ee, \textcolor{stringliteral}{"background"});
   edje\_obj = \mbox{\hyperlink{group__Ecore__Evas__Group_gae00d4a4feb8aec5de03e464fe21a1d30}{ecore\_evas\_data\_get}}(ee, \textcolor{stringliteral}{"edje\_obj"});

   \mbox{\hyperlink{group__Ecore__Evas__Group_ga931aadf4603731e73e8a84e4b14f1493}{ecore\_evas\_geometry\_get}}(ee, NULL, NULL, &w, &h);
   evas\_object\_resize(bg, w, h);
   evas\_object\_resize(edje\_obj, w, h);
\}

\textcolor{keyword}{static} \textcolor{keywordtype}{void}
\_on\_bg\_key\_down(\textcolor{keywordtype}{void} *data, \mbox{\hyperlink{group__Evas__Canvas_ga5ff87cc4ce6bc43e3b640a6d37f73043}{Evas}} *e \mbox{\hyperlink{group__Eina__Types__Group_ga82d751be730f849719ca292f9558be87}{EINA\_UNUSED}}, \mbox{\hyperlink{group__Evas__Object__Group_ga9e19e6dd1f517a0ba437c0114d3e7c97}{Evas\_Object}} *o 
      \mbox{\hyperlink{group__Eina__Types__Group_ga82d751be730f849719ca292f9558be87}{EINA\_UNUSED}}, \textcolor{keywordtype}{void} *event\_info)
\{
   Ecore\_Evas          *ee;
   \mbox{\hyperlink{struct__Evas__Event__Key__Down}{Evas\_Event\_Key\_Down}} *ev;
   \mbox{\hyperlink{group__Evas__Object__Group_ga9e19e6dd1f517a0ba437c0114d3e7c97}{Evas\_Object}}         *edje\_obj;

   ee = (Ecore\_Evas *)data;
   ev = (\mbox{\hyperlink{struct__Evas__Event__Key__Down}{Evas\_Event\_Key\_Down}} *)event\_info;
   edje\_obj = \mbox{\hyperlink{group__Ecore__Evas__Group_gae00d4a4feb8aec5de03e464fe21a1d30}{ecore\_evas\_data\_get}}(ee, \textcolor{stringliteral}{"edje\_obj"});

   \textcolor{keywordflow}{if} (!strcmp(ev->\mbox{\hyperlink{struct__Evas__Event__Key__Down_a70473bba88a1afaee180a54150513824}{key}}, \textcolor{stringliteral}{"h"}))
     \{
        printf(commands);
        \textcolor{keywordflow}{return};
     \}
   \textcolor{keywordflow}{else} \textcolor{keywordflow}{if} (!strcmp(ev->\mbox{\hyperlink{struct__Evas__Event__Key__Down_a70473bba88a1afaee180a54150513824}{key}}, \textcolor{stringliteral}{"Down"}))
     \{
        \mbox{\hyperlink{group__Edje__Part__Drag_ga41de04575def0511385aaf9c41b517f8}{edje\_object\_part\_drag\_step}}(edje\_obj, PARTNAME, 0, 1.0);
     \}
   \textcolor{keywordflow}{else} \textcolor{keywordflow}{if} (!strcmp(ev->\mbox{\hyperlink{struct__Evas__Event__Key__Down_a70473bba88a1afaee180a54150513824}{key}}, \textcolor{stringliteral}{"Up"}))
     \{
        \mbox{\hyperlink{group__Edje__Part__Drag_ga41de04575def0511385aaf9c41b517f8}{edje\_object\_part\_drag\_step}}(edje\_obj, PARTNAME, 0, -1.0);
     \}
   \textcolor{keywordflow}{else} \textcolor{keywordflow}{if} (!strcmp(ev->\mbox{\hyperlink{struct__Evas__Event__Key__Down_a70473bba88a1afaee180a54150513824}{key}}, \textcolor{stringliteral}{"m"}))
     \{
        \mbox{\hyperlink{group__Edje__Part__Drag_gad66daad4fe88004c869aa14f13251c4d}{edje\_object\_part\_drag\_value\_set}}(edje\_obj, PARTNAME, 0.0, 0.5);
     \}
   \textcolor{keywordflow}{else} \textcolor{keywordflow}{if} (!strcmp(ev->\mbox{\hyperlink{struct__Evas__Event__Key__Down_a70473bba88a1afaee180a54150513824}{key}}, \textcolor{stringliteral}{"Prior"}))
     \{
        \mbox{\hyperlink{group__Edje__Part__Drag_gac5be7db880796ad35721a98fcedffcdf}{edje\_object\_part\_drag\_page}}(edje\_obj, PARTNAME, 0.0, -1.0);
     \}
   \textcolor{keywordflow}{else} \textcolor{keywordflow}{if} (!strcmp(ev->\mbox{\hyperlink{struct__Evas__Event__Key__Down_a70473bba88a1afaee180a54150513824}{key}}, \textcolor{stringliteral}{"Next"}))
     \{
        \mbox{\hyperlink{group__Edje__Part__Drag_gac5be7db880796ad35721a98fcedffcdf}{edje\_object\_part\_drag\_page}}(edje\_obj, PARTNAME, 0.0, 1.0);
     \}
   \textcolor{keywordflow}{else} \textcolor{keywordflow}{if} (!strcmp(ev->\mbox{\hyperlink{struct__Evas__Event__Key__Down_a70473bba88a1afaee180a54150513824}{key}}, \textcolor{stringliteral}{"Escape"}))
     \mbox{\hyperlink{group__Ecore__Main__Loop__Group_ga95cf8e97dff0716433c2c5474d606a98}{ecore\_main\_loop\_quit}}();
   \textcolor{keywordflow}{else}
     \{
        printf(\textcolor{stringliteral}{"unhandled key: %s\(\backslash\)n"}, ev->\mbox{\hyperlink{struct__Evas__Event__Key__Down_a70473bba88a1afaee180a54150513824}{key}});
        printf(commands);
     \}
\}

\textcolor{keyword}{static} \textcolor{keywordtype}{void}
\_on\_knob\_moved(\textcolor{keywordtype}{void} *data \mbox{\hyperlink{group__Eina__Types__Group_ga82d751be730f849719ca292f9558be87}{EINA\_UNUSED}}, \mbox{\hyperlink{group__Evas__Object__Group_ga9e19e6dd1f517a0ba437c0114d3e7c97}{Evas\_Object}} *o, \textcolor{keyword}{const} \textcolor{keywordtype}{char} *emission 
      \mbox{\hyperlink{group__Eina__Types__Group_ga82d751be730f849719ca292f9558be87}{EINA\_UNUSED}}, \textcolor{keyword}{const} \textcolor{keywordtype}{char} *source \mbox{\hyperlink{group__Eina__Types__Group_ga82d751be730f849719ca292f9558be87}{EINA\_UNUSED}})
\{
   \textcolor{keywordtype}{double} val;

   \mbox{\hyperlink{group__Edje__Part__Drag_gaf66aae77950cd0b016c4983a73bf9d18}{edje\_object\_part\_drag\_value\_get}}(o, PARTNAME, NULL, &val);
   printf(\textcolor{stringliteral}{"value changed to: %0.3f\(\backslash\)n"}, val);
\}

\textcolor{keywordtype}{int}
main(\textcolor{keywordtype}{int} argc \mbox{\hyperlink{group__Eina__Types__Group_ga82d751be730f849719ca292f9558be87}{EINA\_UNUSED}}, \textcolor{keywordtype}{char} *argv[] \mbox{\hyperlink{group__Eina__Types__Group_ga82d751be730f849719ca292f9558be87}{EINA\_UNUSED}})
\{
   \textcolor{keyword}{const} \textcolor{keywordtype}{char}  *edje\_file = PACKAGE\_DATA\_DIR\textcolor{stringliteral}{"/drag.edj"};
   Ecore\_Evas  *ee;
   \mbox{\hyperlink{group__Evas__Canvas_ga5ff87cc4ce6bc43e3b640a6d37f73043}{Evas}}        *\mbox{\hyperlink{namespaceevas}{evas}};
   \mbox{\hyperlink{group__Evas__Object__Group_ga9e19e6dd1f517a0ba437c0114d3e7c97}{Evas\_Object}} *bg;
   \mbox{\hyperlink{group__Evas__Object__Group_ga9e19e6dd1f517a0ba437c0114d3e7c97}{Evas\_Object}} *edje\_obj;

   \textcolor{keywordflow}{if} (!\mbox{\hyperlink{group__Ecore__Evas__Group_ga32ddbb6457033ad435a177eb0c4fe235}{ecore\_evas\_init}}())
     \textcolor{keywordflow}{return} EXIT\_FAILURE;

   \textcolor{keywordflow}{if} (!\mbox{\hyperlink{group__Edje__General__Group_ga1c9c6594f38023c29fbfb2d0c8c675db}{edje\_init}}())
     \textcolor{keywordflow}{goto} shutdown\_ecore\_evas;

   \textcolor{comment}{/* this will give you a window with an Evas canvas under the first}
\textcolor{comment}{    * engine available */}
   ee = \mbox{\hyperlink{group__Ecore__Evas__Group_gac7f2cdbcb79635c34317c1183dd04cb0}{ecore\_evas\_new}}(NULL, 0, 0, WIDTH, HEIGHT, NULL);
   \textcolor{keywordflow}{if} (!ee) \textcolor{keywordflow}{goto} shutdown\_edje;

   \mbox{\hyperlink{group__Ecore__Evas__Group_ga3680b5c89157167318192157a5d24ec4}{ecore\_evas\_callback\_destroy\_set}}(ee, \_on\_destroy);
   \mbox{\hyperlink{group__Ecore__Evas__Group_gaac67f679c9027059a34519fbdea360df}{ecore\_evas\_callback\_resize\_set}}(ee, \_on\_canvas\_resize);
   \mbox{\hyperlink{group__Ecore__Evas__Group_ga3b2832e0373bbafae2bb7143618535c1}{ecore\_evas\_title\_set}}(ee, \textcolor{stringliteral}{"Edje Drag Example"});

   \mbox{\hyperlink{namespaceevas}{evas}} = \mbox{\hyperlink{group__Ecore__Evas__Group_ga75a7cc694b6069e78df47dab0b0f2d20}{ecore\_evas\_get}}(ee);

   bg = \mbox{\hyperlink{group__Evas__Object__Rectangle_ga4d80fc32ad1cac28428cebd65d746751}{evas\_object\_rectangle\_add}}(\mbox{\hyperlink{namespaceevas}{evas}});
   \mbox{\hyperlink{group__Evas__Object__Group__Basic_gae34bdcfd7f5100151f6ea8ef4a392949}{evas\_object\_color\_set}}(bg, 255, 255, 255, 255);
   evas\_object\_resize(bg, WIDTH, HEIGHT);
   evas\_object\_focus\_set(bg, \mbox{\hyperlink{group__Eina__Types__Group_ga05c12dacc8b4058994df842b41be85fc}{EINA\_TRUE}});
   \mbox{\hyperlink{group__Evas__Object__Group__Basic_ga9cbc13661584e49fb9d9cdab514a1eeb}{evas\_object\_show}}(bg);
   \mbox{\hyperlink{group__Ecore__Evas__Group_gaa86c5abd200a02711aced53d27b9ddb2}{ecore\_evas\_data\_set}}(ee, \textcolor{stringliteral}{"background"}, bg);

   \mbox{\hyperlink{group__Evas__Object__Group__Events_ga23be30ac5cdfb780f1ff82e9108ec26b}{evas\_object\_event\_callback\_add}}(bg, 
      \mbox{\hyperlink{Evas__Common_8h_ad64cde0da38a60e7cb7905b3ab216968a336b86bad4f145f84c155e4922335584}{EVAS\_CALLBACK\_KEY\_DOWN}}, \_on\_bg\_key\_down, ee);

   edje\_obj = edje\_object\_add(\mbox{\hyperlink{namespaceevas}{evas}});

   \textcolor{keywordflow}{if} (!edje\_object\_file\_set(edje\_obj, edje\_file, \textcolor{stringliteral}{"example/group"}))
     printf(\textcolor{stringliteral}{"failed to set file %s.\(\backslash\)n"}, edje\_file);

   evas\_object\_move(edje\_obj, 0, 0);
   evas\_object\_resize(edje\_obj, WIDTH, HEIGHT);
   \mbox{\hyperlink{group__Evas__Object__Group__Basic_ga9cbc13661584e49fb9d9cdab514a1eeb}{evas\_object\_show}}(edje\_obj);
   \mbox{\hyperlink{group__Ecore__Evas__Group_gaa86c5abd200a02711aced53d27b9ddb2}{ecore\_evas\_data\_set}}(ee, \textcolor{stringliteral}{"edje\_obj"}, edje\_obj);

   \mbox{\hyperlink{group__Edje__Part__Drag_ga27274dadd2def4f629f35a368909210b}{edje\_object\_part\_drag\_size\_set}}(edje\_obj, PARTNAME, 1.0, 0.4);

   \textcolor{keywordflow}{if} (!\mbox{\hyperlink{group__Edje__Part__Drag_ga3f4ae18b1ab9b9418e72c1d1db76cc21}{edje\_object\_part\_drag\_step\_set}}(edje\_obj, PARTNAME, 0.0, 0.1))
     printf(\textcolor{stringliteral}{"error when setting drag step size.\(\backslash\)n"});

   \textcolor{keywordflow}{if} (!\mbox{\hyperlink{group__Edje__Part__Drag_gaf90548b5bdb522e4819b57b025f1fd57}{edje\_object\_part\_drag\_page\_set}}(edje\_obj, PARTNAME, 0.0, 0.3))
     printf(\textcolor{stringliteral}{"error when setting drag page step size.\(\backslash\)n"});

   edje\_object\_signal\_callback\_add(edje\_obj, \textcolor{stringliteral}{"drag"}, PARTNAME, \_on\_knob\_moved, NULL);

   printf(commands);

   \mbox{\hyperlink{group__Ecore__Evas__Group_ga4953047ff97d4f1b0d75a7d513d4f317}{ecore\_evas\_show}}(ee);

   \mbox{\hyperlink{group__Ecore__Main__Loop__Group_gaf103b9f668bb3e4fed12e52c6180132d}{ecore\_main\_loop\_begin}}();

   \mbox{\hyperlink{group__Ecore__Evas__Group_gad3ec61f2aa03df4d3dbfd0d311e0c8dc}{ecore\_evas\_free}}(ee);
   \mbox{\hyperlink{group__Ecore__Evas__Group_gab8fa311077f749190c9b622f672b2214}{ecore\_evas\_shutdown}}();
   \mbox{\hyperlink{group__Edje__General__Group_ga01041f6702f2d81bf10c3e41899805cb}{edje\_shutdown}}();

   \textcolor{keywordflow}{return} EXIT\_SUCCESS;

 shutdown\_edje:
   \mbox{\hyperlink{group__Edje__General__Group_ga01041f6702f2d81bf10c3e41899805cb}{edje\_shutdown}}();
 shutdown\_ecore\_evas:
   \mbox{\hyperlink{group__Ecore__Evas__Group_gab8fa311077f749190c9b622f672b2214}{ecore\_evas\_shutdown}}();

   \textcolor{keywordflow}{return} EXIT\_FAILURE;
\}
\end{DoxyCodeInclude}
 