forked from bartvdbraak/blender
Todo item: text editor does not honour continuous grab(see
Added OPTYPE_GRAB_POINTER flag to scrolling operator, changed a bit logic of delta calculation and removed unused members from TextScroll structure. Got issue with very-fast mouse moving (when mouse pointer could go out of window, but it's general issue for all grab operator). Was unable to check MOUSEPAN event (two-finger scroll). Please poke me if there are any issues with this event.
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@ -2011,12 +2011,9 @@ enum {
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typedef struct TextScroll {
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short old[2];
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short hold[2];
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short delta[2];
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int first;
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int characters;
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int lines;
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int scrollbar;
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int zone;
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@ -2044,40 +2041,42 @@ static void scroll_apply(bContext *C, wmOperator *op, wmEvent *event)
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SpaceText *st= CTX_wm_space_text(C);
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ARegion *ar= CTX_wm_region(C);
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TextScroll *tsc= op->customdata;
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short *mval= event->mval;
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short mval[2]= {event->x, event->y};
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short txtdelta[2] = {0, 0};
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text_update_character_width(st);
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if(tsc->first) {
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tsc->old[0]= mval[0];
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tsc->old[1]= mval[1];
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tsc->hold[0]= mval[0];
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tsc->hold[1]= mval[1];
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tsc->first= 0;
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}
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if(!tsc->scrollbar) {
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tsc->delta[0]= (tsc->hold[0]-mval[0])/st->cwidth;
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tsc->delta[1]= (mval[1]-tsc->hold[1])/st->lheight;
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}
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else
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tsc->delta[1]= (tsc->hold[1]-mval[1])*st->pix_per_line;
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if(tsc->delta[0] || tsc->delta[1]) {
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screen_skip(st, ar, tsc->delta[1]);
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tsc->delta[0]+= mval[0] - tsc->old[0];
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tsc->delta[1]+= mval[1] - tsc->old[1];
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tsc->lines += tsc->delta[1];
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if(!tsc->scrollbar) {
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txtdelta[0]= tsc->delta[0]/st->cwidth;
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txtdelta[1]= tsc->delta[1]/st->lheight;
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tsc->delta[0]%= st->cwidth;
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tsc->delta[1]%= st->lheight;
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}
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else {
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txtdelta[1]= -tsc->delta[1]*st->pix_per_line;
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tsc->delta[1]+= txtdelta[1]/st->pix_per_line;
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}
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if(txtdelta[0] || txtdelta[1]) {
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screen_skip(st, ar, txtdelta[1]);
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if(st->wordwrap) {
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st->left= 0;
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}
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else {
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st->left+= tsc->delta[0];
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st->left+= txtdelta[0];
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if(st->left<0) st->left= 0;
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}
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tsc->hold[0]= mval[0];
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tsc->hold[1]= mval[1];
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ED_area_tag_redraw(CTX_wm_area(C));
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}
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@ -2152,11 +2151,11 @@ static int scroll_invoke(bContext *C, wmOperator *op, wmEvent *event)
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if (event->type == MOUSEPAN) {
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text_update_character_width(st);
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tsc->hold[0] = event->prevx;
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tsc->hold[1] = event->prevy;
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tsc->old[0] = event->x;
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tsc->old[1] = event->x;
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/* Sensitivity of scroll set to 4pix per line/char */
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event->mval[0] = event->prevx + (event->x - event->prevx)*st->cwidth/4;
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event->mval[1] = event->prevy + (event->y - event->prevy)*st->lheight/4;
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tsc->delta[0] = (event->x - event->prevx)*st->cwidth/4;
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tsc->delta[1] = (event->y - event->prevy)*st->lheight/4;
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tsc->first = 0;
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tsc->scrollbar = 0;
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scroll_apply(C, op, event);
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@ -2187,7 +2186,7 @@ void TEXT_OT_scroll(wmOperatorType *ot)
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ot->poll= text_space_edit_poll;
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/* flags */
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ot->flag= OPTYPE_BLOCKING;
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ot->flag= OPTYPE_BLOCKING|OPTYPE_GRAB_POINTER;
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/* properties */
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RNA_def_int(ot->srna, "lines", 1, INT_MIN, INT_MAX, "Lines", "Number of lines to scroll.", -100, 100);
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