enlightenment/ephoto
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ephoto
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ephoto/src/bin/ephoto_cropper.c

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#include "ephoto.h"
typedef struct _Ephoto_Cropper Ephoto_Cropper;
struct _Ephoto_Cropper
{
Evas_Object *box;
Evas_Object *image;
Evas_Object *cropper;
Evas_Object *layout;
int startx;
int starty;
int offsetx;
int offsety;
int resizing;
};
static void
_cropper_both_mouse_move(void *data, Evas_Object *obj EINA_UNUSED, const char *emission EINA_UNUSED, const char *source)
{
Ephoto_Cropper *ec = data;
Edje_Message_Int_Set *msg;
int mx, my, cx, cy, cw, ch, nx, ny, lx, ly, lw, lh;
evas_pointer_canvas_xy_get(evas_object_evas_get(ec->cropper), &mx, &my);
evas_object_geometry_get(ec->cropper, &cx, &cy, &cw, &ch);
evas_object_geometry_get(ec->layout, &lx, &ly, &lw, &lh);
nx = mx - ec->startx;
ny = my - ec->starty;
ec->startx = mx;
ec->starty = my;
if (cx+nx < lx)
nx = lx-cx;
else if (cx+cw+nx > lx+lw)
nx = (lx+lw)-(cx+cw);
else if (cy+ny < ly)
ny = ly-cy;
else if (cy+ch+ny > ly+lh)
ny = (ly+lh)-(cy+ch);
msg = alloca(sizeof(Edje_Message_Int_Set) + (3*sizeof(int)));
msg->count = 3;
if (!strcmp(source, "handle1"))
msg->val[0] = 1;
else if (!strcmp(source, "handle3"))
msg->val[0] = 3;
else if (!strcmp(source, "handle5"))
msg->val[0] = 5;
else if (!strcmp(source, "handle7"))
msg->val[0] = 7;
msg->val[1] = nx;
msg->val[2] = ny;
edje_object_message_send(elm_layout_edje_get(ec->layout), EDJE_MESSAGE_INT_SET, 1, msg);
}
static void
_cropper_both_mouse_up(void *data, Evas_Object *obj EINA_UNUSED, const char *emission EINA_UNUSED, const char *source)
{
Ephoto_Cropper *ec = data;
edje_object_signal_callback_del_full(ec->cropper, "mouse,move", source, _cropper_both_mouse_move, ec);
edje_object_signal_callback_del_full(ec->cropper, "mouse,up,1", source, _cropper_both_mouse_up, ec);
ec->resizing = 0;
}
static void
_cropper_resize_both(void *data, Evas_Object *obj EINA_UNUSED, const char *emission EINA_UNUSED, const char *source)
{
Ephoto_Cropper *ec = data;
int mx, my, cx, cy;
ec->resizing = 1;
evas_pointer_canvas_xy_get(evas_object_evas_get(ec->cropper), &mx, &my);
evas_object_geometry_get(ec->cropper, &cx, &cy, 0, 0);
ec->offsetx = mx - cx;
ec->offsety = my - cy;
ec->startx = mx;
ec->starty = my;
edje_object_signal_callback_add(ec->cropper, "mouse,move", source, _cropper_both_mouse_move, ec);
edje_object_signal_callback_add(ec->cropper, "mouse,up,1", source, _cropper_both_mouse_up, ec);
}
static void
_cropper_horiz_mouse_move(void *data, Evas_Object *obj EINA_UNUSED, const char *emission EINA_UNUSED, const char *source)
{
Ephoto_Cropper *ec = data;
Edje_Message_Int_Set *msg;
int mx, cx, cy, cw, ch, nx, lx, ly, lw, lh;
evas_pointer_canvas_xy_get(evas_object_evas_get(ec->cropper), &mx, 0);
evas_object_geometry_get(ec->cropper, &cx, &cy, &cw, &ch);
evas_object_geometry_get(ec->layout, &lx, &ly, &lw, &lh);
nx = mx - ec->startx;
ec->startx = mx;
if (cx+nx < lx)
nx = lx-cx;
else if (cx+cw+nx > lx+lw)
nx = (lx+lw)-(cx+cw);
msg = alloca(sizeof(Edje_Message_Int_Set) + (3*sizeof(int)));
msg->count = 3;
if (!strcmp(source, "handle4"))
msg->val[0] = 4;
else if (!strcmp(source, "handle8"))
msg->val[0] = 8;
msg->val[1] = nx;
msg->val[2] = 0;
edje_object_message_send(elm_layout_edje_get(ec->layout), EDJE_MESSAGE_INT_SET, 1, msg);
}
static void
_cropper_horiz_mouse_up(void *data, Evas_Object *obj EINA_UNUSED, const char *emission EINA_UNUSED, const char *source)
{
Ephoto_Cropper *ec = data;
edje_object_signal_callback_del_full(ec->cropper, "mouse,move", source, _cropper_horiz_mouse_move, ec);
edje_object_signal_callback_del_full(ec->cropper, "mouse,up,1", source, _cropper_horiz_mouse_up, ec);
ec->resizing = 0;
}
static void
_cropper_resize_horiz(void *data, Evas_Object *obj EINA_UNUSED, const char *emission EINA_UNUSED, const char *source EINA_UNUSED)
{
Ephoto_Cropper *ec = data;
int mx, my, cx, cy;
ec->resizing = 1;
evas_pointer_canvas_xy_get(evas_object_evas_get(ec->cropper), &mx, &my);
evas_object_geometry_get(ec->cropper, &cx, &cy, 0, 0);
ec->offsetx = mx - cx;
ec->offsety = my - cy;
ec->startx = mx;
ec->starty = my;
edje_object_signal_callback_add(ec->cropper, "mouse,move", source, _cropper_horiz_mouse_move, ec);
edje_object_signal_callback_add(ec->cropper, "mouse,up,1", source, _cropper_horiz_mouse_up, ec);
}
static void
_cropper_vert_mouse_move(void *data, Evas_Object *obj EINA_UNUSED, const char *emission EINA_UNUSED, const char *source)
{
Ephoto_Cropper *ec = data;
Edje_Message_Int_Set *msg;
int my, cx, cy, cw, ch, ny, lx, ly, lw, lh;
evas_pointer_canvas_xy_get(evas_object_evas_get(ec->cropper), 0, &my);
evas_object_geometry_get(ec->cropper, &cx, &cy, &cw, &ch);
evas_object_geometry_get(ec->layout, &lx, &ly, &lw, &lh);
ny = my - ec->starty;
ec->starty = my;
if (cy+ny < ly)
ny = ly-cy;
else if (cy+ch+ny > ly+lh)
ny = (ly+lh)-(cy+ch);
msg = alloca(sizeof(Edje_Message_Int_Set) + (3*sizeof(int)));
msg->count = 3;
if (!strcmp(source, "handle2"))
msg->val[0] = 2;
else if (!strcmp(source, "handle6"))
msg->val[0] = 6;
msg->val[1] = 0;
msg->val[2] = ny;
edje_object_message_send(elm_layout_edje_get(ec->layout), EDJE_MESSAGE_INT_SET, 1, msg);
}
static void
_cropper_vert_mouse_up(void *data, Evas_Object *obj EINA_UNUSED, const char *emission EINA_UNUSED, const char *source)
{
Ephoto_Cropper *ec = data;
edje_object_signal_callback_del_full(ec->cropper, "mouse,move", source, _cropper_vert_mouse_move, ec);
edje_object_signal_callback_del_full(ec->cropper, "mouse,up,1", source, _cropper_vert_mouse_up, ec);
ec->resizing = 0;
}
static void
_cropper_resize_vert(void *data, Evas_Object *obj EINA_UNUSED, const char *emission EINA_UNUSED, const char *source EINA_UNUSED)
{
Ephoto_Cropper *ec = data;
int mx, my, cx, cy;
ec->resizing = 1;
evas_pointer_canvas_xy_get(evas_object_evas_get(ec->cropper), &mx, &my);
evas_object_geometry_get(ec->cropper, &cx, &cy, 0, 0);
ec->offsetx = mx - cx;
ec->offsety = my - cy;
ec->startx = mx;
ec->starty = my;
edje_object_signal_callback_add(ec->cropper, "mouse,move", source, _cropper_vert_mouse_move, ec);
edje_object_signal_callback_add(ec->cropper, "mouse,up,1", source, _cropper_vert_mouse_up, ec);
}
static void
_cropper_mouse_move(void *data, Evas_Object *obj EINA_UNUSED, const char *emission EINA_UNUSED, const char *source EINA_UNUSED)
{
Ephoto_Cropper *ec = data;
if (!ec->resizing)
{
Edje_Message_Int_Set *msg;
int mx, my, cx, cy, cw, ch, nx, ny, lx, ly, lw, lh;
evas_pointer_canvas_xy_get(evas_object_evas_get(ec->cropper), &mx, &my);
evas_object_geometry_get(ec->cropper, &cx, &cy, &cw, &ch);
evas_object_geometry_get(ec->layout, &lx, &ly, &lw, &lh);
nx = mx - ec->startx;
ny = my - ec->starty;
ec->startx = mx;
ec->starty = my;
if (cx+nx < lx)
nx = lx-cx;
else if (cx+cw+nx > lx+lw)
nx = (lx+lw)-(cx+cw);
else if (cy+ny < ly)
ny = ly-cy;
else if (cy+ch+ny > ly+lh)
ny = (ly+lh)-(cy+ch);
msg = alloca(sizeof(Edje_Message_Int_Set) + (3*sizeof(int)));
msg->count = 3;
msg->val[0] = 0;
msg->val[1] = nx;
msg->val[2] = ny;
edje_object_message_send(elm_layout_edje_get(ec->layout), EDJE_MESSAGE_INT_SET, 1, msg);
}
}
static void
_cropper_mouse_up(void *data, Evas_Object *obj EINA_UNUSED, const char *emission EINA_UNUSED, const char *source EINA_UNUSED)
{
Ephoto_Cropper *ec = data;
edje_object_signal_callback_del_full(ec->cropper, "mouse,move", "dragger", _cropper_mouse_move, ec);
edje_object_signal_callback_del_full(ec->cropper, "mouse,up,1", "dragger", _cropper_mouse_up, ec);
}
static void
_cropper_move(void *data, Evas_Object *obj EINA_UNUSED, const char *emission EINA_UNUSED, const char *source EINA_UNUSED)
{
Ephoto_Cropper *ec = data;
int mx, my, cx, cy;
evas_pointer_canvas_xy_get(evas_object_evas_get(ec->cropper), &mx, &my);
evas_object_geometry_get(ec->cropper, &cx, &cy, 0, 0);
ec->startx = mx;
ec->starty = my;
ec->offsetx = mx - cx;
ec->offsety = my - cy;
edje_object_signal_callback_add(ec->cropper, "mouse,move", "dragger", _cropper_mouse_move, ec);
edje_object_signal_callback_add(ec->cropper, "mouse,up,1", "dragger", _cropper_mouse_up, ec);
}
static void
_image_resize(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_data EINA_UNUSED)
{
Ephoto_Cropper *ec = data;
int sx, sy, sw, sh, iw, ih, diffw, diffh;
int cx, cy, cw, ch, ix, iy;
evas_object_geometry_get(ec->layout, &sx, &sy, &sw, &sh);
evas_object_image_size_get(elm_image_object_get(ec->image), &iw, &ih);
if (iw < sw && ih < sh)
{
diffw = sw - iw;
diffh = sh - ih;
diffw /= 2;
diffh /= 2;
ix = sx+diffw;
iy = sy+diffh;
cw = iw/2;
ch = ih/2;
cx = (cw/2)+ix;
cy = (ch/2)+iy;
evas_object_resize(ec->layout, iw, ih);
evas_object_move(ec->layout, ix, iy);
}
else
{
int nw, nh;
if (sw > sh)
{
nw = sw;
nh = ih*((double)sw/(double)iw);
if (nh > sh)
{
int onw, onh;
onw = nw;
onh = nh;
nh = sh;
nw = onw*((double)nh/(double)onh);
}
}
else
{
nh = sh;
nw = iw*((double)sh/(double)ih);
if (nw > sw)
{
int onw, onh;
onw = nw;
onh = nh;
nw = sw;
nh = onh*((double)nw/(double)onw);
}
}
diffw = sw - nw;
diffh = sh - nh;
diffw /= 2;
diffh /= 2;
ix = sx+diffw;
iy = sy+diffh;
cw = nw/2;
ch = nh/2;
cx = ix+(cw/2);
cy = iy+(ch/2);
evas_object_resize(ec->layout, nw, nh);
evas_object_move(ec->layout, ix, iy);
}
}
static void
_cropper_free(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_data EINA_UNUSED)
{
Ephoto_Cropper *ec = data;
free(ec);
}
Evas_Object *
ephoto_cropper_add(Evas_Object *parent, const char *file, const char *key)
{
Ephoto_Cropper *ec = calloc(1, sizeof(Ephoto_Cropper));
ec->resizing = 0;
ec->box = elm_box_add(parent);
evas_object_size_hint_weight_set(ec->box, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(ec->box, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_show(ec->box);
ec->layout = elm_layout_add(ec->box);
elm_layout_file_set(ec->layout, PACKAGE_DATA_DIR "/themes/crop.edj", "ephoto,image,cropper,base");
evas_object_size_hint_weight_set(ec->layout, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(ec->layout, EVAS_HINT_FILL, EVAS_HINT_FILL);
elm_box_pack_end(ec->box, ec->layout);
evas_object_show(ec->layout);
ec->image = elm_image_add(ec->layout);
elm_image_file_set(ec->image, file, key);
evas_object_size_hint_weight_set(ec->image, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(ec->image, EVAS_HINT_FILL, EVAS_HINT_FILL);
elm_layout_content_set(ec->layout, "ephoto.swallow.image", ec->image);
evas_object_show(ec->image);
ec->cropper = edje_object_add(evas_object_evas_get(ec->layout));
edje_object_file_set(ec->cropper, PACKAGE_DATA_DIR "/themes/crop.edj", "ephoto,image,cropper");
elm_layout_content_set(ec->layout, "ephoto.swallow.cropper", ec->cropper);
evas_object_show(ec->cropper);
edje_object_signal_callback_add(ec->cropper, "mouse,down,1", "dragger", _cropper_move, ec);
edje_object_signal_callback_add(ec->cropper, "mouse,down,1", "handle1", _cropper_resize_both, ec);
edje_object_signal_callback_add(ec->cropper, "mouse,down,1", "handle2", _cropper_resize_vert, ec);
edje_object_signal_callback_add(ec->cropper, "mouse,down,1", "handle3", _cropper_resize_both, ec);
edje_object_signal_callback_add(ec->cropper, "mouse,down,1", "handle4", _cropper_resize_horiz, ec);
edje_object_signal_callback_add(ec->cropper, "mouse,down,1", "handle5", _cropper_resize_both, ec);
edje_object_signal_callback_add(ec->cropper, "mouse,down,1", "handle6", _cropper_resize_vert, ec);
edje_object_signal_callback_add(ec->cropper, "mouse,down,1", "handle7", _cropper_resize_both, ec);
edje_object_signal_callback_add(ec->cropper, "mouse,down,1", "handle8", _cropper_resize_horiz, ec);
evas_object_data_set(ec->box, "image", ec->image);
evas_object_data_set(ec->box, "layout", ec->layout);
evas_object_event_callback_add(ec->layout, EVAS_CALLBACK_RESIZE, _image_resize, ec);
evas_object_event_callback_add(ec->box, EVAS_CALLBACK_FREE, _cropper_free, ec);
return ec->box;
}
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