553 lines
14 KiB
C
553 lines
14 KiB
C
#include "ephoto.h"
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#ifdef HAVE_LIBEXIF
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#include <libexif/exif-data.h>
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#endif
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#define ZOOM_MIN 0.1
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#define ZOOM_MAX 10.0
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#define ZOOM_STEP 0.2
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typedef struct _Ephoto_Flow_Browser Ephoto_Flow_Browser;
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typedef struct _Ephoto_Viewer Ephoto_Viewer;
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struct _Ephoto_Flow_Browser
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{
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Ephoto *ephoto;
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Evas_Object *layout;
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Evas_Object *edje;
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Evas_Object *viewer;
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const char *path;
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Ephoto_Entry *entry;
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Ephoto_Orient orient;
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double zoom;
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};
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struct _Ephoto_Viewer
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{
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Evas_Object *photocam;
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Evas_Object *scroller;
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Evas_Object *image;
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};
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static void _zoom_set(Ephoto_Flow_Browser *fb, double zoom);
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static Eina_Bool
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_path_is_jpeg(const char *path_stringshared)
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{
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size_t len = eina_stringshare_strlen(path_stringshared);
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const char *ext;
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if (len < sizeof(".jpg")) return EINA_FALSE;
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ext = path_stringshared + len - (sizeof(".jpg") - 1);
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if (strcasecmp(ext, ".jpg") == 0) return EINA_TRUE;
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if (len < sizeof(".jpeg")) return EINA_FALSE;
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ext = path_stringshared + len - (sizeof(".jpeg") - 1);
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if (strcasecmp(ext, ".jpeg") == 0) return EINA_TRUE;
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return EINA_FALSE;
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}
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static void
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_viewer_del(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
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{
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Ephoto_Viewer *v = data;
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free(v);
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}
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static Evas_Object *
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_viewer_add(Evas_Object *parent, const char *path)
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{
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Ephoto_Viewer *v = calloc(1, sizeof(Ephoto_Viewer));
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Evas_Object *obj;
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int err;
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EINA_SAFETY_ON_NULL_RETURN_VAL(v, NULL);
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if (_path_is_jpeg(path))
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{
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obj = v->photocam = elm_photocam_add(parent);
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EINA_SAFETY_ON_NULL_GOTO(obj, error);
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err = elm_photocam_file_set(obj, path);
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if (err != EVAS_LOAD_ERROR_NONE) goto load_error;
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}
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else
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{
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Evas_Coord w, h;
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obj = v->scroller = elm_scroller_add(parent);
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EINA_SAFETY_ON_NULL_GOTO(obj, error);
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v->image = evas_object_image_filled_add(evas_object_evas_get(parent));
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evas_object_image_file_set(v->image, path, NULL);
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err = evas_object_image_load_error_get(v->image);
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if (err != EVAS_LOAD_ERROR_NONE) goto load_error;
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evas_object_image_size_get(v->image, &w, &h);
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evas_object_size_hint_align_set(v->image, 0.5, 0.5);
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evas_object_size_hint_min_set(v->image, w, h);
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evas_object_size_hint_max_set(v->image, w, h);
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evas_object_resize(v->image, w, h);
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evas_object_show(v->image);
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elm_scroller_content_set(obj, v->image);
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}
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evas_object_size_hint_weight_set(obj, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
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evas_object_size_hint_align_set(obj, EVAS_HINT_FILL, EVAS_HINT_FILL);
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evas_object_data_set(obj, "viewer", v);
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evas_object_event_callback_add(obj, EVAS_CALLBACK_DEL, _viewer_del, v);
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return obj;
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load_error:
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ERR("could not load image '%s': %s", path, evas_load_error_str(err));
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evas_object_del(obj);
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error:
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free(v);
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return NULL;
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}
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static void
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_viewer_zoom_set(Evas_Object *obj, float zoom)
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{
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Ephoto_Viewer *v = evas_object_data_get(obj, "viewer");
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EINA_SAFETY_ON_NULL_RETURN(v);
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if (v->photocam) elm_photocam_zoom_set(v->photocam, 1.0 / zoom);
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else
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{
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Evas_Coord w, h;
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evas_object_image_size_get(v->image, &w, &h);
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w *= zoom;
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h *= zoom;
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evas_object_size_hint_min_set(v->image, w, h);
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evas_object_size_hint_max_set(v->image, w, h);
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}
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}
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static void
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_rotation_apply(Ephoto_Flow_Browser *fb)
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{
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const char *sig;
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switch (fb->orient)
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{
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case EPHOTO_ORIENT_0:
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sig = "state,rotate,0";
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break;
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case EPHOTO_ORIENT_90:
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sig = "state,rotate,90";
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break;
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case EPHOTO_ORIENT_180:
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sig = "state,rotate,180";
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break;
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case EPHOTO_ORIENT_270:
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sig = "state,rotate,270";
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break;
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default:
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return;
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}
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edje_object_signal_emit(fb->edje, sig, "ephoto");
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}
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static void
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_rotate_counterclock(Ephoto_Flow_Browser *fb)
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{
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switch (fb->orient)
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{
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case EPHOTO_ORIENT_0:
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fb->orient = EPHOTO_ORIENT_270;
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break;
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case EPHOTO_ORIENT_90:
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fb->orient = EPHOTO_ORIENT_0;
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break;
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case EPHOTO_ORIENT_180:
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fb->orient = EPHOTO_ORIENT_90;
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break;
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case EPHOTO_ORIENT_270:
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fb->orient = EPHOTO_ORIENT_180;
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break;
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}
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_rotation_apply(fb);
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}
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static void
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_rotate_clock(Ephoto_Flow_Browser *fb)
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{
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switch (fb->orient)
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{
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case EPHOTO_ORIENT_0:
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fb->orient = EPHOTO_ORIENT_90;
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break;
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case EPHOTO_ORIENT_90:
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fb->orient = EPHOTO_ORIENT_180;
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break;
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case EPHOTO_ORIENT_180:
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fb->orient = EPHOTO_ORIENT_270;
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break;
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case EPHOTO_ORIENT_270:
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fb->orient = EPHOTO_ORIENT_0;
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break;
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}
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_rotation_apply(fb);
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}
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static void
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_mouse_wheel(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info)
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{
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Ephoto_Flow_Browser *fb = data;
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Evas_Event_Mouse_Wheel *ev = event_info;
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if (!evas_key_modifier_is_set(ev->modifiers, "Control")) return;
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if (ev->z > 0) _zoom_set(fb, fb->zoom + ZOOM_STEP);
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else _zoom_set(fb, fb->zoom - ZOOM_STEP);
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}
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static Ephoto_Entry *
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_first_entry_find(Ephoto_Flow_Browser *fb)
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{
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const Eina_List *l;
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Ephoto_Entry *entry;
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EINA_SAFETY_ON_NULL_RETURN_VAL(fb->ephoto, NULL);
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EINA_LIST_FOREACH(fb->ephoto->entries, l, entry)
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if (!entry->is_dir) return entry;
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return NULL;
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}
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static Ephoto_Entry *
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_last_entry_find(Ephoto_Flow_Browser *fb)
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{
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const Eina_List *l;
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Ephoto_Entry *entry;
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EINA_SAFETY_ON_NULL_RETURN_VAL(fb->ephoto, NULL);
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EINA_LIST_REVERSE_FOREACH(fb->ephoto->entries, l, entry)
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if (!entry->is_dir) return entry;
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return NULL;
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}
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static void
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_ephoto_flow_browser_toolbar_eval(Ephoto_Flow_Browser *fb)
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{
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if (!fb->entry)
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{
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edje_object_signal_emit(fb->edje, "slideshow,disable", "ephoto");
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edje_object_signal_emit(fb->edje, "prev,disable", "ephoto");
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edje_object_signal_emit(fb->edje, "next,disable", "ephoto");
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}
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else
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{
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edje_object_signal_emit(fb->edje, "slideshow,enable", "ephoto");
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if (fb->entry == _first_entry_find(fb))
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edje_object_signal_emit(fb->edje, "prev,disable", "ephoto");
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else
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edje_object_signal_emit(fb->edje, "prev,enable", "ephoto");
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if (fb->entry == _last_entry_find(fb))
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edje_object_signal_emit(fb->edje, "next,disable", "ephoto");
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else
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edje_object_signal_emit(fb->edje, "next,enable", "ephoto");
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}
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}
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static Ephoto_Orient
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_file_rotation_get(const char *path)
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{
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#ifndef HAVE_LIBEXIF
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return EPHOTO_ORIENT_0;
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#else
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Ephoto_Orient orient = EPHOTO_ORIENT_0;
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ExifData *exif;
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ExifEntry *entry;
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ExifByteOrder bo;
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if (!_path_is_jpeg(path)) return orient;
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exif = exif_data_new_from_file(path);
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EINA_SAFETY_ON_NULL_GOTO(exif, end);
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bo = exif_data_get_byte_order(exif);
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entry = exif_data_get_entry(exif, EXIF_TAG_ORIENTATION);
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EINA_SAFETY_ON_NULL_GOTO(entry, end_entry);
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switch (exif_get_short(entry->data, bo))
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{
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case 0:
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orient = EPHOTO_ORIENT_0;
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break;
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case 3:
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orient = EPHOTO_ORIENT_180;
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break;
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case 6:
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orient = EPHOTO_ORIENT_90;
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break;
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case 8:
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orient = EPHOTO_ORIENT_270;
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break;
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default:
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ERR("exif rotation not supported: %d", orient);
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}
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end_entry:
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exif_data_free(exif);
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end:
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return orient;
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#endif
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}
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static void
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_ephoto_flow_browser_recalc(Ephoto_Flow_Browser *fb)
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{
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if (fb->viewer)
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{
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evas_object_del(fb->viewer);
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fb->viewer = NULL;
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}
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if (fb->path)
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{
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const char *bname = ecore_file_file_get(fb->path);
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fb->viewer = _viewer_add(fb->layout, fb->path);
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elm_layout_content_set(fb->layout, "ephoto.swallow.flow", fb->viewer);
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evas_object_event_callback_add
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(fb->viewer, EVAS_CALLBACK_MOUSE_WHEEL, _mouse_wheel, fb);
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edje_object_part_text_set(fb->edje, "ephoto.text.title", bname);
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ephoto_title_set(fb->ephoto, bname);
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fb->orient = _file_rotation_get(fb->path);
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_rotation_apply(fb);
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}
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_ephoto_flow_browser_toolbar_eval(fb);
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}
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static void
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_zoom_set(Ephoto_Flow_Browser *fb, double zoom)
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{
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if (zoom > ZOOM_MAX) zoom = ZOOM_MAX;
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else if (zoom < ZOOM_MIN) zoom = ZOOM_MIN;
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DBG("zoom %f", zoom);
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_viewer_zoom_set(fb->viewer, zoom);
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fb->zoom = zoom;
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if (zoom <= ZOOM_MIN)
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edje_object_signal_emit(fb->edje, "zoom_out,disable", "ephoto");
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else
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edje_object_signal_emit(fb->edje, "zoom_out,enable", "ephoto");
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if (zoom >= ZOOM_MAX)
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edje_object_signal_emit(fb->edje, "zoom_in,disable", "ephoto");
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else
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edje_object_signal_emit(fb->edje, "zoom_in,enable", "ephoto");
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}
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static void
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_zoom_in(void *data, Evas_Object *o __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
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{
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Ephoto_Flow_Browser *fb = data;
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_zoom_set(fb, fb->zoom + ZOOM_STEP);
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}
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static void
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_zoom_out(void *data, Evas_Object *o __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
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{
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Ephoto_Flow_Browser *fb = data;
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_zoom_set(fb, fb->zoom - ZOOM_STEP);
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}
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static void
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_next_entry(Ephoto_Flow_Browser *fb)
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{
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Elm_Gengrid_Item *it;
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Ephoto_Entry *entry;
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EINA_SAFETY_ON_NULL_RETURN(fb->entry);
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EINA_SAFETY_ON_NULL_RETURN(fb->entry->item);
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it = fb->entry->item;
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while ((it = elm_gengrid_item_next_get(it)))
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{
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entry = elm_gengrid_item_data_get(it);
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if (!entry->is_dir) break;
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}
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if (!it) return;
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DBG("next is '%s'", entry->path);
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ephoto_flow_browser_entry_set(fb->layout, entry);
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}
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static void
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_prev_entry(Ephoto_Flow_Browser *fb)
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{
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Elm_Gengrid_Item *it;
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Ephoto_Entry *entry;
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EINA_SAFETY_ON_NULL_RETURN(fb->entry);
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EINA_SAFETY_ON_NULL_RETURN(fb->entry->item);
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it = fb->entry->item;
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while ((it = elm_gengrid_item_prev_get(it)))
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{
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entry = elm_gengrid_item_data_get(it);
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if (!entry->is_dir) break;
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}
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if (!it) return;
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DBG("prev is '%s'", entry->path);
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ephoto_flow_browser_entry_set(fb->layout, entry);
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}
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static void
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_first_entry(Ephoto_Flow_Browser *fb)
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{
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Ephoto_Entry *entry = _first_entry_find(fb);
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if (!entry) return;
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DBG("first is '%s'", entry->path);
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ephoto_flow_browser_entry_set(fb->layout, entry);
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}
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static void
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_last_entry(Ephoto_Flow_Browser *fb)
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{
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Ephoto_Entry *entry = _last_entry_find(fb);
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if (!entry) return;
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DBG("last is '%s'", entry->path);
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ephoto_flow_browser_entry_set(fb->layout, entry);
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}
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static void
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_next_button(void *data, Evas_Object *o __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
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{
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Ephoto_Flow_Browser *fb = data;
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_next_entry(fb);
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}
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static void
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_prev_button(void *data, Evas_Object *o __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
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{
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Ephoto_Flow_Browser *fb = data;
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_prev_entry(fb);
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}
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static void
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_back(void *data, Evas_Object *o __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
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{
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Ephoto_Flow_Browser *fb = data;
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evas_object_smart_callback_call(fb->layout, "back", fb->entry);
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}
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static void
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_key_down(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info)
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{
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Ephoto_Flow_Browser *fb = data;
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Evas_Event_Key_Down *ev = event_info;
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Eina_Bool ctrl = evas_key_modifier_is_set(ev->modifiers, "Control");
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const char *k = ev->keyname;
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if (ctrl)
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{
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if ((!strcmp(k, "plus")) || (!strcmp(k, "equal")))
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_zoom_set(fb, fb->zoom + ZOOM_STEP);
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else if (!strcmp(k, "minus"))
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_zoom_set(fb, fb->zoom - ZOOM_STEP);
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else if (!strcmp(k, "0"))
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_zoom_set(fb, 1.0);
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}
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if (!strcmp(k, "Escape"))
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evas_object_smart_callback_call(fb->layout, "back", fb->entry);
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else if (!strcmp(k, "Left"))
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_prev_entry(fb);
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else if (!strcmp(k, "Right"))
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_next_entry(fb);
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else if (!strcmp(k, "Home"))
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_first_entry(fb);
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else if (!strcmp(k, "End"))
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_last_entry(fb);
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else if (!strcmp(k, "bracketleft"))
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_rotate_counterclock(fb);
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else if (!strcmp(k, "bracketright"))
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_rotate_clock(fb);
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else if (!strcmp(k, "F5"))
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{
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if (fb->entry)
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evas_object_smart_callback_call(fb->layout, "slideshow", fb->entry);
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}
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}
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static void
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_layout_del(void *data, Evas *e __UNUSED__, Evas_Object *o __UNUSED__, void *event_info __UNUSED__)
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{
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Ephoto_Flow_Browser *fb = data;
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eina_stringshare_del(fb->path);
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free(fb);
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}
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Evas_Object *
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ephoto_flow_browser_add(Ephoto *ephoto, Evas_Object *parent)
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{
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Evas_Object *layout = elm_layout_add(parent);
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Ephoto_Flow_Browser *fb;
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EINA_SAFETY_ON_NULL_RETURN_VAL(layout, NULL);
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fb = calloc(1, sizeof(Ephoto_Flow_Browser));
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EINA_SAFETY_ON_NULL_GOTO(fb, error);
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fb->ephoto = ephoto;
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fb->layout = layout;
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fb->edje = elm_layout_edje_get(layout);
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fb->zoom = 1.0;
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evas_object_event_callback_add(layout, EVAS_CALLBACK_DEL, _layout_del, fb);
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evas_object_event_callback_add
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(layout, EVAS_CALLBACK_KEY_DOWN, _key_down, fb);
|
|
elm_object_focus_allow_set(layout, EINA_TRUE);
|
|
evas_object_data_set(layout, "flow_browser", fb);
|
|
|
|
edje_object_signal_callback_add
|
|
(fb->edje, "zoom_out,clicked", "ephoto", _zoom_out, fb);
|
|
edje_object_signal_callback_add
|
|
(fb->edje, "zoom_in,clicked", "ephoto", _zoom_in, fb);
|
|
edje_object_signal_callback_add
|
|
(fb->edje, "prev,clicked", "ephoto", _prev_button, fb);
|
|
edje_object_signal_callback_add
|
|
(fb->edje, "next,clicked", "ephoto", _next_button, fb);
|
|
edje_object_signal_callback_add
|
|
(fb->edje, "back", "ephoto", _back, fb);
|
|
|
|
if (!elm_layout_file_set(layout, THEME_FILE, "ephoto/flow/layout"))
|
|
{
|
|
evas_object_del(layout);
|
|
return NULL;
|
|
}
|
|
|
|
_ephoto_flow_browser_toolbar_eval(fb);
|
|
|
|
return layout;
|
|
|
|
error:
|
|
evas_object_del(layout);
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
ephoto_flow_browser_path_set(Evas_Object *obj, const char *path)
|
|
{
|
|
Ephoto_Flow_Browser *fb = evas_object_data_get(obj, "flow_browser");
|
|
EINA_SAFETY_ON_NULL_RETURN(fb);
|
|
|
|
DBG("path '%s', was '%s'", path ? path : "", fb->path ? fb->path : "");
|
|
if (!eina_stringshare_replace(&fb->path, path)) return;
|
|
fb->entry = NULL;
|
|
fb->zoom = 1.0;
|
|
_ephoto_flow_browser_recalc(fb);
|
|
}
|
|
|
|
void
|
|
ephoto_flow_browser_entry_set(Evas_Object *obj, Ephoto_Entry *entry)
|
|
{
|
|
Ephoto_Flow_Browser *fb = evas_object_data_get(obj, "flow_browser");
|
|
EINA_SAFETY_ON_NULL_RETURN(fb);
|
|
|
|
DBG("entry %p, was %p", entry, fb->entry);
|
|
fb->entry = entry;
|
|
if (!eina_stringshare_replace(&fb->path, entry->path))
|
|
_ephoto_flow_browser_toolbar_eval(fb);
|
|
else
|
|
{
|
|
fb->zoom = 1.0;
|
|
_ephoto_flow_browser_recalc(fb);
|
|
}
|
|
}
|