static bool do_lasso_select_node(bContext *C, const int mcords[][2], short moves, short select)
{
SpaceNode *snode = CTX_wm_space_node(C);
bNode *node;
ARegion *ar = CTX_wm_region(C);
rcti rect;
bool changed = false;
/* get rectangle from operator */
BLI_lasso_boundbox(&rect, mcords, moves);
/* do actual selection */
for (node = snode->edittree->nodes.first; node; node = node->next) {
int screen_co[2];
const float cent[2] = {BLI_rctf_cent_x(&node->totr),
BLI_rctf_cent_y(&node->totr)};
/* marker in screen coords */
if (UI_view2d_view_to_region_clip(&ar->v2d, cent[0], cent[1], &screen_co[0], &screen_co[1]) &&
BLI_rcti_isect_pt(&rect, screen_co[0], screen_co[1]) &&
BLI_lasso_is_point_inside(mcords, moves, screen_co[0], screen_co[1], INT_MAX))
{
nodeSetSelected(node, select);
changed = true;
}
}
if (changed) {
WM_event_add_notifier(C, NC_NODE | NA_SELECTED, NULL);
}
return changed;
}
void BLI_rctf_resize(rctf *rect, float x, float y)
{
rect->xmin = rect->xmax = BLI_rctf_cent_x(rect);
rect->ymin = rect->ymax = BLI_rctf_cent_y(rect);
rect->xmin -= x * 0.5f;
rect->ymin -= y * 0.5f;
rect->xmax = rect->xmin + x;
rect->ymax = rect->ymin + y;
}
void BLI_rctf_scale(rctf *rect, const float scale)
{
const float cent_x = BLI_rctf_cent_x(rect);
const float cent_y = BLI_rctf_cent_y(rect);
const float size_x_half = BLI_rctf_size_x(rect) * (scale * 0.5f);
const float size_y_half = BLI_rctf_size_y(rect) * (scale * 0.5f);
rect->xmin = cent_x - size_x_half;
rect->ymin = cent_y - size_y_half;
rect->xmax = cent_x + size_x_half;
rect->ymax = cent_y + size_y_half;
}
/**
* Expand the rectangle to fit a rotated \a src.
*/
void BLI_rctf_rotate_expand(rctf *dst, const rctf *src, const float angle)
{
const float mat2[2] = {sinf(angle), cosf(angle)};
const float cent[2] = {BLI_rctf_cent_x(src), BLI_rctf_cent_y(src)};
float corner[2], corner_rot[2], corder_max[2];
/* x is same for both corners */
corner[0] = src->xmax - cent[0];
corner[1] = src->ymax - cent[1];
ROTATE_SINCOS(corner_rot, mat2, corner);
corder_max[0] = fabsf(corner_rot[0]);
corder_max[1] = fabsf(corner_rot[1]);
corner[1] *= -1;
ROTATE_SINCOS(corner_rot, mat2, corner);
corder_max[0] = MAX2(corder_max[0], fabsf(corner_rot[0]));
corder_max[1] = MAX2(corder_max[1], fabsf(corner_rot[1]));
dst->xmin = cent[0] - corder_max[0];
dst->xmax = cent[0] + corder_max[0];
dst->ymin = cent[1] - corder_max[1];
dst->ymax = cent[1] + corder_max[1];
}
/* position block relative to but, result is in window space */
static void ui_popup_block_position(wmWindow *window,
ARegion *butregion,
uiBut *but,
uiBlock *block)
{
uiPopupBlockHandle *handle = block->handle;
/* Compute button position in window coordinates using the source
* button region/block, to position the popup attached to it. */
rctf butrct;
if (!handle->refresh) {
ui_block_to_window_rctf(butregion, but->block, &butrct, &but->rect);
/* widget_roundbox_set has this correction too, keep in sync */
if (but->type != UI_BTYPE_PULLDOWN) {
if (but->drawflag & UI_BUT_ALIGN_TOP) {
butrct.ymax += U.pixelsize;
}
if (but->drawflag & UI_BUT_ALIGN_LEFT) {
butrct.xmin -= U.pixelsize;
}
}
handle->prev_butrct = butrct;
}
else {
/* For refreshes, keep same button position so popup doesn't move. */
butrct = handle->prev_butrct;
}
/* Compute block size in window space, based on buttons contained in it. */
if (block->rect.xmin == 0.0f && block->rect.xmax == 0.0f) {
if (block->buttons.first) {
BLI_rctf_init_minmax(&block->rect);
for (uiBut *bt = block->buttons.first; bt; bt = bt->next) {
if (block->content_hints & UI_BLOCK_CONTAINS_SUBMENU_BUT) {
bt->rect.xmax += UI_MENU_SUBMENU_PADDING;
}
BLI_rctf_union(&block->rect, &bt->rect);
}
}
else {
/* we're nice and allow empty blocks too */
block->rect.xmin = block->rect.ymin = 0;
block->rect.xmax = block->rect.ymax = 20;
}
}
ui_block_to_window_rctf(butregion, but->block, &block->rect, &block->rect);
/* Compute direction relative to button, based on available space. */
const int size_x = BLI_rctf_size_x(&block->rect) + 0.2f * UI_UNIT_X; /* 4 for shadow */
const int size_y = BLI_rctf_size_y(&block->rect) + 0.2f * UI_UNIT_Y;
const int center_x = (block->direction & UI_DIR_CENTER_X) ? size_x / 2 : 0;
const int center_y = (block->direction & UI_DIR_CENTER_Y) ? size_y / 2 : 0;
short dir1 = 0, dir2 = 0;
if (!handle->refresh) {
bool left = 0, right = 0, top = 0, down = 0;
const int win_x = WM_window_pixels_x(window);
const int win_y = WM_window_pixels_y(window);
/* Take into account maximum size so we don't have to flip on refresh. */
const float max_size_x = max_ff(size_x, handle->max_size_x);
const float max_size_y = max_ff(size_y, handle->max_size_y);
/* check if there's space at all */
if (butrct.xmin - max_size_x + center_x > 0.0f) {
left = 1;
}
if (butrct.xmax + max_size_x - center_x < win_x) {
right = 1;
}
if (butrct.ymin - max_size_y + center_y > 0.0f) {
down = 1;
}
if (butrct.ymax + max_size_y - center_y < win_y) {
top = 1;
}
if (top == 0 && down == 0) {
if (butrct.ymin - max_size_y < win_y - butrct.ymax - max_size_y) {
top = 1;
}
else {
down = 1;
}
}
dir1 = (block->direction & UI_DIR_ALL);
/* Secondary directions. */
if (dir1 & (UI_DIR_UP | UI_DIR_DOWN)) {
if (dir1 & UI_DIR_LEFT) {
dir2 = UI_DIR_LEFT;
}
else if (dir1 & UI_DIR_RIGHT) {
dir2 = UI_DIR_RIGHT;
}
dir1 &= (UI_DIR_UP | UI_DIR_DOWN);
}
if ((dir2 == 0) && (dir1 == UI_DIR_LEFT || dir1 == UI_DIR_RIGHT)) {
dir2 = UI_DIR_DOWN;
}
if ((dir2 == 0) && (dir1 == UI_DIR_UP || dir1 == UI_DIR_DOWN)) {
dir2 = UI_DIR_LEFT;
}
/* no space at all? don't change */
if (left || right) {
if (dir1 == UI_DIR_LEFT && left == 0) {
dir1 = UI_DIR_RIGHT;
}
if (dir1 == UI_DIR_RIGHT && right == 0) {
dir1 = UI_DIR_LEFT;
}
/* this is aligning, not append! */
if (dir2 == UI_DIR_LEFT && right == 0) {
dir2 = UI_DIR_RIGHT;
}
if (dir2 == UI_DIR_RIGHT && left == 0) {
dir2 = UI_DIR_LEFT;
}
}
if (down || top) {
if (dir1 == UI_DIR_UP && top == 0) {
dir1 = UI_DIR_DOWN;
}
if (dir1 == UI_DIR_DOWN && down == 0) {
dir1 = UI_DIR_UP;
}
BLI_assert(dir2 != UI_DIR_UP);
// if (dir2 == UI_DIR_UP && top == 0) { dir2 = UI_DIR_DOWN; }
if (dir2 == UI_DIR_DOWN && down == 0) {
dir2 = UI_DIR_UP;
}
}
handle->prev_dir1 = dir1;
handle->prev_dir2 = dir2;
}
else {
/* For refreshes, keep same popup direct so popup doesn't move
* to a totally different position while editing in it. */
dir1 = handle->prev_dir1;
dir2 = handle->prev_dir2;
}
/* Compute offset based on direction. */
float offset_x = 0, offset_y = 0;
/* Ensure buttons don't come between the parent button and the popup, see: T63566. */
const float offset_overlap = max_ff(U.pixelsize, 1.0f);
if (dir1 == UI_DIR_LEFT) {
offset_x = (butrct.xmin - block->rect.xmax) + offset_overlap;
if (dir2 == UI_DIR_UP) {
offset_y = butrct.ymin - block->rect.ymin - center_y - UI_MENU_PADDING;
}
else {
offset_y = butrct.ymax - block->rect.ymax + center_y + UI_MENU_PADDING;
}
}
else if (dir1 == UI_DIR_RIGHT) {
offset_x = (butrct.xmax - block->rect.xmin) - offset_overlap;
if (dir2 == UI_DIR_UP) {
offset_y = butrct.ymin - block->rect.ymin - center_y - UI_MENU_PADDING;
}
else {
offset_y = butrct.ymax - block->rect.ymax + center_y + UI_MENU_PADDING;
}
}
else if (dir1 == UI_DIR_UP) {
offset_y = (butrct.ymax - block->rect.ymin) - offset_overlap;
if (dir2 == UI_DIR_RIGHT) {
offset_x = butrct.xmax - block->rect.xmax + center_x;
}
else {
offset_x = butrct.xmin - block->rect.xmin - center_x;
}
/* changed direction? */
if ((dir1 & block->direction) == 0) {
/* TODO: still do */
UI_block_order_flip(block);
}
}
else if (dir1 == UI_DIR_DOWN) {
offset_y = (butrct.ymin - block->rect.ymax) + offset_overlap;
if (dir2 == UI_DIR_RIGHT) {
offset_x = butrct.xmax - block->rect.xmax + center_x;
}
else {
offset_x = butrct.xmin - block->rect.xmin - center_x;
}
/* changed direction? */
if ((dir1 & block->direction) == 0) {
/* TODO: still do */
UI_block_order_flip(block);
}
}
/* Center over popovers for eg. */
if (block->direction & UI_DIR_CENTER_X) {
offset_x += BLI_rctf_size_x(&butrct) / ((dir2 == UI_DIR_LEFT) ? 2 : -2);
}
/* Apply offset, buttons in window coords. */
for (uiBut *bt = block->buttons.first; bt; bt = bt->next) {
ui_block_to_window_rctf(butregion, but->block, &bt->rect, &bt->rect);
BLI_rctf_translate(&bt->rect, offset_x, offset_y);
/* ui_but_update recalculates drawstring size in pixels */
ui_but_update(bt);
}
BLI_rctf_translate(&block->rect, offset_x, offset_y);
/* Safety calculus. */
{
const float midx = BLI_rctf_cent_x(&butrct);
const float midy = BLI_rctf_cent_y(&butrct);
/* when you are outside parent button, safety there should be smaller */
/* parent button to left */
if (midx < block->rect.xmin) {
block->safety.xmin = block->rect.xmin - 3;
}
else {
block->safety.xmin = block->rect.xmin - 40;
}
/* parent button to right */
if (midx > block->rect.xmax) {
block->safety.xmax = block->rect.xmax + 3;
}
else {
block->safety.xmax = block->rect.xmax + 40;
}
/* parent button on bottom */
if (midy < block->rect.ymin) {
block->safety.ymin = block->rect.ymin - 3;
}
else {
block->safety.ymin = block->rect.ymin - 40;
}
/* parent button on top */
if (midy > block->rect.ymax) {
block->safety.ymax = block->rect.ymax + 3;
}
else {
block->safety.ymax = block->rect.ymax + 40;
}
/* exception for switched pulldowns... */
if (dir1 && (dir1 & block->direction) == 0) {
if (dir2 == UI_DIR_RIGHT) {
block->safety.xmax = block->rect.xmax + 3;
}
if (dir2 == UI_DIR_LEFT) {
block->safety.xmin = block->rect.xmin - 3;
}
}
block->direction = dir1;
}
/* keep a list of these, needed for pulldown menus */
uiSafetyRct *saferct = MEM_callocN(sizeof(uiSafetyRct), "uiSafetyRct");
saferct->parent = butrct;
saferct->safety = block->safety;
BLI_freelistN(&block->saferct);
BLI_duplicatelist(&block->saferct, &but->block->saferct);
BLI_addhead(&block->saferct, saferct);
}
void BLI_rctf_recenter(rctf *rect, float x, float y)
{
const float dx = x - BLI_rctf_cent_x(rect);
const float dy = y - BLI_rctf_cent_y(rect);
BLI_rctf_translate(rect, dx, dy);
}