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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/** \file
* \ingroup edscr
*
* Query functions for area/region.
*/
#include "DNA_userdef_types.h"
#include "BLI_blenlib.h"
#include "BLI_utildefines.h"
#include "RNA_types.h"
#include "WM_api.h"
#include "ED_screen.h"
#include "UI_interface.h"
#include "UI_view2d.h"
bool ED_region_overlap_isect_x(const ARegion *ar, const int event_x)
{
BLI_assert(ar->overlap);
/* No contents, skip it. */
if (ar->v2d.mask.xmin == ar->v2d.mask.xmax) {
return false;
}
return BLI_rctf_isect_x(&ar->v2d.tot,
UI_view2d_region_to_view_x(&ar->v2d, event_x - ar->winrct.xmin));
}
bool ED_region_overlap_isect_y(const ARegion *ar, const int event_y)
{
BLI_assert(ar->overlap);
/* No contents, skip it. */
if (ar->v2d.mask.ymin == ar->v2d.mask.ymax) {
return false;
}
return BLI_rctf_isect_y(&ar->v2d.tot,
UI_view2d_region_to_view_y(&ar->v2d, event_y - ar->winrct.ymin));
}
bool ED_region_overlap_isect_xy(const ARegion *ar, const int event_xy[2])
{
return (ED_region_overlap_isect_x(ar, event_xy[0]) &&
ED_region_overlap_isect_y(ar, event_xy[1]));
}
bool ED_region_overlap_isect_x_with_margin(const ARegion *ar, const int event_x, const int margin)
{
BLI_assert(ar->overlap);
/* No contents, skip it. */
if (ar->v2d.mask.xmin == ar->v2d.mask.xmax) {
return false;
}
int region_x = event_x - ar->winrct.xmin;
return ((ar->v2d.tot.xmin <= UI_view2d_region_to_view_x(&ar->v2d, region_x + margin)) &&
(ar->v2d.tot.xmax >= UI_view2d_region_to_view_x(&ar->v2d, region_x - margin)));
}
bool ED_region_overlap_isect_y_with_margin(const ARegion *ar, const int event_y, const int margin)
{
BLI_assert(ar->overlap);
/* No contents, skip it. */
if (ar->v2d.mask.ymin == ar->v2d.mask.ymax) {
return false;
}
int region_y = event_y - ar->winrct.ymin;
return ((ar->v2d.tot.ymin <= UI_view2d_region_to_view_y(&ar->v2d, region_y + margin)) &&
(ar->v2d.tot.ymax >= UI_view2d_region_to_view_y(&ar->v2d, region_y - margin)));
}
bool ED_region_overlap_isect_xy_with_margin(const ARegion *ar,
const int event_xy[2],
const int margin)
{
return (ED_region_overlap_isect_x_with_margin(ar, event_xy[0], margin) &&
ED_region_overlap_isect_y_with_margin(ar, event_xy[1], margin));
}
bool ED_region_contains_xy(const ARegion *ar, const int event_xy[2])
{
/* Only use the margin when inside the region. */
if (BLI_rcti_isect_pt_v(&ar->winrct, event_xy)) {
if (ar->overlap) {
const int overlap_margin = UI_REGION_OVERLAP_MARGIN;
/* Note the View2D.tot isn't reliable for headers with spacers otherwise
* we'd check #ED_region_overlap_isect_xy_with_margin for both bases. */
if (ar->v2d.keeptot == V2D_KEEPTOT_STRICT) {
/* Header. */
rcti rect;
BLI_rcti_init_pt_radius(&rect, event_xy, overlap_margin);
if (UI_region_but_find_rect_over(ar, &rect) == NULL) {
return false;
}
}
else {
/* Side-bar & any other kind of overlapping region. */
/* Check alignment to avoid region tabs being clipped out
* by only clipping a single axis for aligned regions. */
if (ELEM(ar->alignment, RGN_ALIGN_TOP, RGN_ALIGN_BOTTOM)) {
if (!ED_region_overlap_isect_x_with_margin(ar, event_xy[0], overlap_margin)) {
return false;
}
}
else if (ELEM(ar->alignment, RGN_ALIGN_LEFT, RGN_ALIGN_RIGHT)) {
if (!ED_region_overlap_isect_y_with_margin(ar, event_xy[1], overlap_margin)) {
return false;
}
}
else {
if (!ED_region_overlap_isect_xy_with_margin(ar, event_xy, overlap_margin)) {
return false;
}
}
}
}
return true;
}
return false;
}
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