static int sample_modal(bContext *C, wmOperator *op, const wmEvent *event)
{
switch (event->type) {
case LEFTMOUSE:
case RIGHTMOUSE: /* XXX hardcoded */
sample_exit(C, op);
return OPERATOR_CANCELLED;
case MOUSEMOVE:
sample_apply(C, op, event);
break;
}
return OPERATOR_RUNNING_MODAL;
}
static int sample_invoke(bContext *C, wmOperator *op, const wmEvent *event)
{
ARegion *ar = CTX_wm_region(C);
SpaceSeq *sseq = CTX_wm_space_seq(C);
ImageSampleInfo *info;
if (sseq->mainb != SEQ_DRAW_IMG_IMBUF)
return OPERATOR_CANCELLED;
info = MEM_callocN(sizeof(ImageSampleInfo), "ImageSampleInfo");
info->art = ar->type;
info->draw_handle = ED_region_draw_cb_activate(ar->type, sample_draw, info, REGION_DRAW_POST_PIXEL);
op->customdata = info;
sample_apply(C, op, event);
WM_event_add_modal_handler(C, op);
return OPERATOR_RUNNING_MODAL;
}
static int sample_invoke(bContext *C, wmOperator *op, const wmEvent *event)
{
SpaceNode *snode = CTX_wm_space_node(C);
ARegion *ar = CTX_wm_region(C);
ImageSampleInfo *info;
if (!ED_node_is_compositor(snode) || !(snode->flag & SNODE_BACKDRAW))
return OPERATOR_CANCELLED;
info = MEM_callocN(sizeof(ImageSampleInfo), "ImageSampleInfo");
info->art = ar->type;
info->draw_handle = ED_region_draw_cb_activate(ar->type, sample_draw, info, REGION_DRAW_POST_PIXEL);
op->customdata = info;
sample_apply(C, op, event);
WM_event_add_modal_handler(C, op);
return OPERATOR_RUNNING_MODAL;
}