diff options
Diffstat (limited to 'source/blender/editors/screen/screen_edit.c')
| -rw-r--r-- | source/blender/editors/screen/screen_edit.c | 246 |
1 files changed, 192 insertions, 54 deletions
diff --git a/source/blender/editors/screen/screen_edit.c b/source/blender/editors/screen/screen_edit.c index 7ad8eada3b9..6cb184a3394 100644 --- a/source/blender/editors/screen/screen_edit.c +++ b/source/blender/editors/screen/screen_edit.c @@ -104,8 +104,12 @@ static void screen_delarea(bContext *C, bScreen *screen, ScrArea *area) MEM_freeN(area); } -ScrArea *area_split( - const wmWindow *win, bScreen *screen, ScrArea *area, char dir, float fac, int merge) +ScrArea *area_split(const wmWindow *win, + bScreen *screen, + ScrArea *area, + const eScreenAxis dir_axis, + const float fac, + const bool merge) { ScrArea *newa = NULL; @@ -116,7 +120,7 @@ ScrArea *area_split( rcti window_rect; WM_window_rect_calc(win, &window_rect); - short split = screen_geom_find_area_split_point(area, &window_rect, dir, fac); + short split = screen_geom_find_area_split_point(area, &window_rect, dir_axis, fac); if (split == 0) { return NULL; } @@ -125,7 +129,7 @@ ScrArea *area_split( * normally it shouldn't matter which is used since the copy should match the original * however with viewport rendering and python console this isn't the case. - campbell */ - if (dir == 'h') { + if (dir_axis == SCREEN_AXIS_H) { /* new vertices */ ScrVert *sv1 = screen_geom_vertex_add(screen, area->v1->vec.x, split); ScrVert *sv2 = screen_geom_vertex_add(screen, area->v4->vec.x, split); @@ -279,47 +283,44 @@ void screen_new_activate_prepare(const wmWindow *win, bScreen *screen_new) screen_new->do_draw = true; } -/* with area as center, sb is located at: 0=W, 1=N, 2=E, 3=S */ -/* -1 = not valid check */ -/* used with join operator */ -int area_getorientation(ScrArea *area, ScrArea *sb) +/** + * with `sa_a` as center, `sa_b` is located at: 0=W, 1=N, 2=E, 3=S + * -1 = not valid check. + * used with join operator. + */ +eScreenDir area_getorientation(ScrArea *sa_a, ScrArea *sa_b) { - if (area == NULL || sb == NULL) { - return -1; + if (sa_a == NULL || sa_b == NULL || sa_a == sa_b) { + return SCREEN_DIR_NONE; } - ScrVert *saBL = area->v1; - ScrVert *saTL = area->v2; - ScrVert *saTR = area->v3; - ScrVert *saBR = area->v4; + const vec2s *sa_bl = &sa_a->v1->vec; + const vec2s *sa_tl = &sa_a->v2->vec; + const vec2s *sa_tr = &sa_a->v3->vec; + const vec2s *sa_br = &sa_a->v4->vec; - ScrVert *sbBL = sb->v1; - ScrVert *sbTL = sb->v2; - ScrVert *sbTR = sb->v3; - ScrVert *sbBR = sb->v4; + const vec2s *sb_bl = &sa_b->v1->vec; + const vec2s *sb_tl = &sa_b->v2->vec; + const vec2s *sb_tr = &sa_b->v3->vec; + const vec2s *sb_br = &sa_b->v4->vec; - if (saBL->vec.x == sbBR->vec.x && saTL->vec.x == sbTR->vec.x) { /* area to right of sb = W */ - if ((abs(saBL->vec.y - sbBR->vec.y) <= AREAJOINTOLERANCE) && - (abs(saTL->vec.y - sbTR->vec.y) <= AREAJOINTOLERANCE)) { + if (sa_bl->x == sb_br->x && sa_tl->x == sb_tr->x) { /* sa_a to right of sa_b = W */ + if ((MIN2(sa_tl->y, sb_tr->y) - MAX2(sa_bl->y, sb_br->y)) > AREAJOINTOLERANCEY) { return 0; } } - else if (saTL->vec.y == sbBL->vec.y && - saTR->vec.y == sbBR->vec.y) { /* area to bottom of sb = N */ - if ((abs(saTL->vec.x - sbBL->vec.x) <= AREAJOINTOLERANCE) && - (abs(saTR->vec.x - sbBR->vec.x) <= AREAJOINTOLERANCE)) { + else if (sa_tl->y == sb_bl->y && sa_tr->y == sb_br->y) { /* sa_a to bottom of sa_b = N */ + if ((MIN2(sa_tr->x, sb_br->x) - MAX2(sa_tl->x, sb_bl->x)) > AREAJOINTOLERANCEX) { return 1; } } - else if (saTR->vec.x == sbTL->vec.x && saBR->vec.x == sbBL->vec.x) { /* area to left of sb = E */ - if ((abs(saTR->vec.y - sbTL->vec.y) <= AREAJOINTOLERANCE) && - (abs(saBR->vec.y - sbBL->vec.y) <= AREAJOINTOLERANCE)) { + else if (sa_tr->x == sb_tl->x && sa_br->x == sb_bl->x) { /* sa_a to left of sa_b = E */ + if ((MIN2(sa_tr->y, sb_tl->y) - MAX2(sa_br->y, sb_bl->y)) > AREAJOINTOLERANCEY) { return 2; } } - else if (saBL->vec.y == sbTL->vec.y && saBR->vec.y == sbTR->vec.y) { /* area on top of sb = S*/ - if ((abs(saBL->vec.x - sbTL->vec.x) <= AREAJOINTOLERANCE) && - (abs(saBR->vec.x - sbTR->vec.x) <= AREAJOINTOLERANCE)) { + else if (sa_bl->y == sb_tl->y && sa_br->y == sb_tr->y) { /* sa_a on top of sa_b = S */ + if ((MIN2(sa_br->x, sb_tr->x) - MAX2(sa_bl->x, sb_tl->x)) > AREAJOINTOLERANCEX) { return 3; } } @@ -327,6 +328,39 @@ int area_getorientation(ScrArea *area, ScrArea *sb) return -1; } +/** + * Get alignment offset of adjacent areas. 'dir' value is like #area_getorientation(). + */ +void area_getoffsets( + ScrArea *sa_a, ScrArea *sa_b, const eScreenDir dir, int *r_offset1, int *r_offset2) +{ + if (sa_a == NULL || sa_b == NULL) { + *r_offset1 = INT_MAX; + *r_offset2 = INT_MAX; + } + else if (dir == SCREEN_DIR_W) { /* West: sa on right and sa_b to the left. */ + *r_offset1 = sa_b->v3->vec.y - sa_a->v2->vec.y; + *r_offset2 = sa_b->v4->vec.y - sa_a->v1->vec.y; + } + else if (dir == SCREEN_DIR_N) { /* North: sa below and sa_b above. */ + *r_offset1 = sa_a->v2->vec.x - sa_b->v1->vec.x; + *r_offset2 = sa_a->v3->vec.x - sa_b->v4->vec.x; + } + else if (dir == SCREEN_DIR_E) { /* East: sa on left and sa_b to the right. */ + *r_offset1 = sa_b->v2->vec.y - sa_a->v3->vec.y; + *r_offset2 = sa_b->v1->vec.y - sa_a->v4->vec.y; + } + else if (dir == SCREEN_DIR_S) { /* South: sa above and sa_b below. */ + *r_offset1 = sa_a->v1->vec.x - sa_b->v2->vec.x; + *r_offset2 = sa_a->v4->vec.x - sa_b->v3->vec.x; + } + else { + BLI_assert(dir == SCREEN_DIR_NONE); + *r_offset1 = INT_MAX; + *r_offset2 = INT_MAX; + } +} + /* Screen verts with horizontal position equal to from_x are moved to to_x. */ static void screen_verts_halign(const wmWindow *win, const bScreen *screen, @@ -358,11 +392,11 @@ static void screen_verts_valign(const wmWindow *win, /* Adjust all screen edges to allow joining two areas. 'dir' value is like area_getorientation(). */ static void screen_areas_align( - bContext *C, bScreen *screen, ScrArea *sa1, ScrArea *sa2, const int dir) + bContext *C, bScreen *screen, ScrArea *sa1, ScrArea *sa2, const eScreenDir dir) { wmWindow *win = CTX_wm_window(C); - if (ELEM(dir, 0, 2)) { + if (SCREEN_DIR_IS_HORIZONTAL(dir)) { /* horizontal join, use average for new top and bottom. */ int top = (sa1->v2->vec.y + sa2->v2->vec.y) / 2; int bottom = (sa1->v4->vec.y + sa2->v4->vec.y) / 2; @@ -390,41 +424,47 @@ static void screen_areas_align( } } -/* Helper function to join 2 areas, it has a return value, 0=failed 1=success - * used by the split, join operators - */ -int screen_area_join(bContext *C, bScreen *screen, ScrArea *sa1, ScrArea *sa2) +/* Simple join of two areas without any splitting. Will return false if not possible. */ +static bool screen_area_join_aligned(bContext *C, bScreen *screen, ScrArea *sa1, ScrArea *sa2) { - int dir = area_getorientation(sa1, sa2); + const eScreenDir dir = area_getorientation(sa1, sa2); + if (dir == SCREEN_DIR_NONE) { + return false; + } - if (dir == -1) { - return 0; + int offset1; + int offset2; + area_getoffsets(sa1, sa2, dir, &offset1, &offset2); + + int tolerance = SCREEN_DIR_IS_HORIZONTAL(dir) ? AREAJOINTOLERANCEY : AREAJOINTOLERANCEX; + if ((abs(offset1) >= tolerance) || (abs(offset2) >= tolerance)) { + return false; } - /* Align areas if they are not. Do sanity checking before getting here. */ + /* Align areas if they are not. */ screen_areas_align(C, screen, sa1, sa2, dir); - if (dir == 0) { /* sa1 to right of sa2 = W */ - sa1->v1 = sa2->v1; /* BL */ - sa1->v2 = sa2->v2; /* TL */ + if (dir == SCREEN_DIR_W) { /* sa1 to right of sa2 = West. */ + sa1->v1 = sa2->v1; /* BL */ + sa1->v2 = sa2->v2; /* TL */ screen_geom_edge_add(screen, sa1->v2, sa1->v3); screen_geom_edge_add(screen, sa1->v1, sa1->v4); } - else if (dir == 1) { /* sa1 to bottom of sa2 = N */ - sa1->v2 = sa2->v2; /* TL */ - sa1->v3 = sa2->v3; /* TR */ + else if (dir == SCREEN_DIR_N) { /* sa1 to bottom of sa2 = North. */ + sa1->v2 = sa2->v2; /* TL */ + sa1->v3 = sa2->v3; /* TR */ screen_geom_edge_add(screen, sa1->v1, sa1->v2); screen_geom_edge_add(screen, sa1->v3, sa1->v4); } - else if (dir == 2) { /* sa1 to left of sa2 = E */ - sa1->v3 = sa2->v3; /* TR */ - sa1->v4 = sa2->v4; /* BR */ + else if (dir == SCREEN_DIR_E) { /* sa1 to left of sa2 = East. */ + sa1->v3 = sa2->v3; /* TR */ + sa1->v4 = sa2->v4; /* BR */ screen_geom_edge_add(screen, sa1->v2, sa1->v3); screen_geom_edge_add(screen, sa1->v1, sa1->v4); } - else if (dir == 3) { /* sa1 on top of sa2 = S */ - sa1->v1 = sa2->v1; /* BL */ - sa1->v4 = sa2->v4; /* BR */ + else if (dir == SCREEN_DIR_S) { /* sa1 on top of sa2 = South. */ + sa1->v1 = sa2->v1; /* BL */ + sa1->v4 = sa2->v4; /* BR */ screen_geom_edge_add(screen, sa1->v1, sa1->v2); screen_geom_edge_add(screen, sa1->v3, sa1->v4); } @@ -434,7 +474,104 @@ int screen_area_join(bContext *C, bScreen *screen, ScrArea *sa1, ScrArea *sa2) /* Update preview thumbnail */ BKE_icon_changed(screen->id.icon_id); - return 1; + return true; +} + +/* Slice off and return new area. "Reverse" gives right/bottom, rather than left/top. */ +static ScrArea *screen_area_trim( + bContext *C, bScreen *screen, ScrArea **area, int size, eScreenDir dir, bool reverse) +{ + const bool vertical = SCREEN_DIR_IS_VERTICAL(dir); + if (abs(size) < (vertical ? AREAJOINTOLERANCEX : AREAJOINTOLERANCEY)) { + return NULL; + } + + /* Measurement with ScrVerts because winx and winy might not be correct at this time. */ + float fac = abs(size) / (float)(vertical ? ((*area)->v3->vec.x - (*area)->v1->vec.x) : + ((*area)->v3->vec.y - (*area)->v1->vec.y)); + fac = (reverse == vertical) ? 1.0f - fac : fac; + ScrArea *newsa = area_split( + CTX_wm_window(C), screen, *area, vertical ? SCREEN_AXIS_V : SCREEN_AXIS_H, fac, true); + + /* area_split always returns smallest of the two areas, so might have to swap. */ + if (((fac > 0.5f) == vertical) != reverse) { + ScrArea *temp = *area; + *area = newsa; + newsa = temp; + } + + return newsa; +} + +/* Join any two neighboring areas. Might create new areas, kept if over min_remainder. */ +static bool screen_area_join_ex( + bContext *C, bScreen *screen, ScrArea *sa1, ScrArea *sa2, bool close_all_remainders) +{ + const eScreenDir dir = area_getorientation(sa1, sa2); + if (dir == SCREEN_DIR_NONE) { + return false; + } + + int offset1; + int offset2; + area_getoffsets(sa1, sa2, dir, &offset1, &offset2); + + /* Split Left/Top into new area if overhanging. */ + ScrArea *side1 = screen_area_trim(C, screen, (offset1 > 0) ? &sa2 : &sa1, offset1, dir, false); + + /* Split Right/Bottom into new area if overhanging. */ + ScrArea *side2 = screen_area_trim(C, screen, (offset2 > 0) ? &sa1 : &sa2, offset2, dir, true); + + /* The two areas now line up, so join them. */ + screen_area_join_aligned(C, screen, sa1, sa2); + + if (close_all_remainders || offset1 < 0 || offset2 > 0) { + /* Close both if trimming `sa1`. */ + screen_area_close(C, screen, side1); + screen_area_close(C, screen, side2); + } + + BKE_icon_changed(screen->id.icon_id); + return true; +} + +/* Join any two neighboring areas. Might involve complex changes. */ +int screen_area_join(bContext *C, bScreen *screen, ScrArea *sa1, ScrArea *sa2) +{ + return screen_area_join_ex(C, screen, sa1, sa2, false); +} + +/* Close a screen area, allowing most-aligned neighbor to take its place. */ +bool screen_area_close(struct bContext *C, bScreen *screen, ScrArea *area) +{ + if (area == NULL) { + return false; + } + + ScrArea *sa2 = NULL; + float best_alignment = 0.0f; + + LISTBASE_FOREACH (ScrArea *, neighbor, &screen->areabase) { + const eScreenDir dir = area_getorientation(area, neighbor); + /* Must at least partially share an edge and not be a global area. */ + if ((dir != SCREEN_DIR_NONE) && (neighbor->global == NULL)) { + /* Winx/Winy might not be updated yet, so get lengths from verts. */ + const bool vertical = SCREEN_DIR_IS_VERTICAL(dir); + const int area_length = vertical ? (area->v3->vec.x - area->v1->vec.x) : + (area->v3->vec.y - area->v1->vec.y); + const int ar_length = vertical ? (neighbor->v3->vec.x - neighbor->v1->vec.x) : + (neighbor->v3->vec.y - neighbor->v1->vec.y); + /* Calculate the ratio of the lengths of the shared edges. */ + float alignment = MIN2(area_length, ar_length) / (float)MAX2(area_length, ar_length); + if (alignment > best_alignment) { + best_alignment = alignment; + sa2 = neighbor; + } + } + } + + /* Join from neighbor into this area to close it. */ + return screen_area_join_ex(C, screen, sa2, area, true); } /* ****************** EXPORTED API TO OTHER MODULES *************************** */ @@ -1448,6 +1585,7 @@ ScrArea *ED_screen_temp_space_open(bContext *C, sizex, sizey, (int)space_type, + false, dialog, true, WIN_ALIGN_LOCATION_CENTER)) { |