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blender-archive/source/blender/editors/space_node/node_select.cc

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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2008 Blender Foundation. All rights reserved. */
/** \file
* \ingroup spnode
*/
#include <array>
#include <cstdlib>
#include "DNA_node_types.h"
#include "DNA_windowmanager_types.h"
#include "BLI_lasso_2d.h"
#include "BLI_listbase.h"
#include "BLI_rect.h"
#include "BLI_string.h"
#include "BLI_string_search.h"
#include "BLI_string_utf8.h"
#include "BLI_utildefines.h"
#include "BKE_context.h"
#include "BKE_main.h"
#include "BKE_node.h"
#include "BKE_node_runtime.hh"
#include "BKE_node_tree_update.h"
#include "BKE_workspace.h"
#include "ED_node.h" /* own include */
#include "ED_node.hh" /* own include */
#include "ED_screen.h"
#include "ED_select_utils.h"
#include "ED_view3d.h"
#include "ED_viewer_path.hh"
#include "RNA_access.h"
#include "RNA_define.h"
#include "WM_api.h"
#include "WM_types.h"
#include "UI_interface.h"
#include "UI_resources.h"
#include "UI_view2d.h"
#include "DEG_depsgraph.h"
#include "MEM_guardedalloc.h"
#include "node_intern.hh" /* own include */
namespace blender::ed::space_node {
static bool is_event_over_node_or_socket(const bContext &C, const wmEvent &event);
/**
* Function to detect if there is a visible view3d that uses workbench in texture mode.
* This function is for fixing #76970 for Blender 2.83. The actual fix should add a mechanism in
* the depsgraph that can be used by the draw engines to check if they need to be redrawn.
*
* We don't want to add these risky changes this close before releasing 2.83 without good testing
* hence this workaround. There are still cases were too many updates happen. For example when you
* have both a Cycles and workbench with textures viewport.
*/
static bool has_workbench_in_texture_color(const wmWindowManager *wm,
const Scene *scene,
const Object *ob)
{
LISTBASE_FOREACH (wmWindow *, win, &wm->windows) {
if (win->scene != scene) {
continue;
}
const bScreen *screen = BKE_workspace_active_screen_get(win->workspace_hook);
LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
if (area->spacetype == SPACE_VIEW3D) {
const View3D *v3d = (const View3D *)area->spacedata.first;
if (ED_view3d_has_workbench_in_texture_color(scene, ob, v3d)) {
return true;
}
}
}
}
return false;
}
/* -------------------------------------------------------------------- */
/** \name Public Node Selection API
* \{ */
rctf node_frame_rect_inside(const bNode &node)
{
const float margin = 1.5f * U.widget_unit;
rctf frame_inside = {
node.runtime->totr.xmin,
node.runtime->totr.xmax,
node.runtime->totr.ymin,
node.runtime->totr.ymax,
};
BLI_rctf_pad(&frame_inside, -margin, -margin);
return frame_inside;
}
bool node_or_socket_isect_event(const bContext &C, const wmEvent &event)
{
return is_event_over_node_or_socket(C, event);
}
static bool node_frame_select_isect_mouse(const bNode &node, const float2 &mouse)
{
/* Frame nodes are selectable by their borders (including their whole rect - as for other nodes -
* would prevent e.g. box selection of nodes inside that frame). */
const rctf frame_inside = node_frame_rect_inside(node);
if (BLI_rctf_isect_pt(&node.runtime->totr, mouse.x, mouse.y) &&
!BLI_rctf_isect_pt(&frame_inside, mouse.x, mouse.y)) {
return true;
}
return false;
}
static bNode *node_under_mouse_select(bNodeTree &ntree, const float2 mouse)
{
LISTBASE_FOREACH_BACKWARD (bNode *, node, &ntree.nodes) {
switch (node->type) {
case NODE_FRAME: {
if (node_frame_select_isect_mouse(*node, mouse)) {
return node;
}
break;
}
default: {
if (BLI_rctf_isect_pt(&node->runtime->totr, int(mouse.x), int(mouse.y))) {
return node;
}
break;
}
}
}
return nullptr;
}
static bool node_under_mouse_tweak(const bNodeTree &ntree, const float2 &mouse)
{
LISTBASE_FOREACH_BACKWARD (const bNode *, node, &ntree.nodes) {
switch (node->type) {
case NODE_REROUTE: {
const float2 location = node_to_view(*node, {node->locx, node->locy});
if (math::distance_squared(mouse, location) < square_f(24.0f)) {
return true;
}
break;
}
case NODE_FRAME: {
if (node_frame_select_isect_mouse(*node, mouse)) {
return true;
}
break;
}
default: {
if (BLI_rctf_isect_pt(&node->runtime->totr, mouse.x, mouse.y)) {
return true;
}
break;
}
}
}
return false;
}
static bool is_position_over_node_or_socket(SpaceNode &snode, const float2 &mouse)
{
if (node_under_mouse_tweak(*snode.edittree, mouse)) {
return true;
}
if (node_find_indicated_socket(snode, mouse, SOCK_IN | SOCK_OUT)) {
return true;
}
return false;
}
static bool is_event_over_node_or_socket(const bContext &C, const wmEvent &event)
{
SpaceNode &snode = *CTX_wm_space_node(&C);
ARegion &region = *CTX_wm_region(&C);
int2 mval;
WM_event_drag_start_mval(&event, &region, mval);
float2 mouse;
UI_view2d_region_to_view(&region.v2d, mval.x, mval.y, &mouse.x, &mouse.y);
return is_position_over_node_or_socket(snode, mouse);
}
void node_socket_select(bNode *node, bNodeSocket &sock)
{
sock.flag |= SELECT;
/* select node too */
if (node) {
node->flag |= SELECT;
}
}
void node_socket_deselect(bNode *node, bNodeSocket &sock, const bool deselect_node)
{
sock.flag &= ~SELECT;
if (node && deselect_node) {
bool sel = false;
/* if no selected sockets remain, also deselect the node */
LISTBASE_FOREACH (bNodeSocket *, input, &node->inputs) {
if (input->flag & SELECT) {
sel = true;
break;
}
}
LISTBASE_FOREACH (bNodeSocket *, output, &node->outputs) {
if (output->flag & SELECT) {
sel = true;
break;
}
}
if (!sel) {
node->flag &= ~SELECT;
}
}
}
static void node_socket_toggle(bNode *node, bNodeSocket &sock, bool deselect_node)
{
if (sock.flag & SELECT) {
node_socket_deselect(node, sock, deselect_node);
}
else {
node_socket_select(node, sock);
}
}
void node_deselect_all(bNodeTree &node_tree)
{
for (bNode *node : node_tree.all_nodes()) {
nodeSetSelected(node, false);
}
}
void node_deselect_all_input_sockets(bNodeTree &node_tree, const bool deselect_nodes)
{
/* XXX not calling node_socket_deselect here each time, because this does iteration
* over all node sockets internally to check if the node stays selected.
* We can do that more efficiently here.
*/
for (bNode *node : node_tree.all_nodes()) {
bool sel = false;
LISTBASE_FOREACH (bNodeSocket *, socket, &node->inputs) {
socket->flag &= ~SELECT;
}
/* If no selected sockets remain, also deselect the node. */
if (deselect_nodes) {
LISTBASE_FOREACH (bNodeSocket *, socket, &node->outputs) {
if (socket->flag & SELECT) {
sel = true;
break;
}
}
if (!sel) {
node->flag &= ~SELECT;
}
}
}
}
void node_deselect_all_output_sockets(bNodeTree &node_tree, const bool deselect_nodes)
{
/* XXX not calling node_socket_deselect here each time, because this does iteration
* over all node sockets internally to check if the node stays selected.
* We can do that more efficiently here.
*/
for (bNode *node : node_tree.all_nodes()) {
bool sel = false;
LISTBASE_FOREACH (bNodeSocket *, socket, &node->outputs) {
socket->flag &= ~SELECT;
}
/* if no selected sockets remain, also deselect the node */
if (deselect_nodes) {
LISTBASE_FOREACH (bNodeSocket *, socket, &node->inputs) {
if (socket->flag & SELECT) {
sel = true;
break;
}
}
if (!sel) {
node->flag &= ~SELECT;
}
}
}
}
VectorSet<bNode *> get_selected_nodes(bNodeTree &node_tree)
{
VectorSet<bNode *> selected_nodes;
for (bNode *node : node_tree.all_nodes()) {
if (node->flag & NODE_SELECT) {
selected_nodes.add(node);
}
}
return selected_nodes;
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Select Grouped Operator
* \{ */
/* Return true if we need redraw, otherwise false. */
static bool node_select_grouped_type(bNodeTree &node_tree, bNode &node_act)
{
bool changed = false;
for (bNode *node : node_tree.all_nodes()) {
if ((node->flag & SELECT) == 0) {
if (node->type == node_act.type) {
nodeSetSelected(node, true);
changed = true;
}
}
}
return changed;
}
static bool node_select_grouped_color(bNodeTree &node_tree, bNode &node_act)
{
bool changed = false;
for (bNode *node : node_tree.all_nodes()) {
if ((node->flag & SELECT) == 0) {
if (compare_v3v3(node->color, node_act.color, 0.005f)) {
nodeSetSelected(node, true);
changed = true;
}
}
}
return changed;
}
static bool node_select_grouped_name(bNodeTree &node_tree, bNode &node_act, const bool from_right)
{
bool changed = false;
const uint delims[] = {'.', '-', '_', '\0'};
size_t pref_len_act, pref_len_curr;
const char *sep, *suf_act, *suf_curr;
pref_len_act = BLI_str_partition_ex_utf8(
node_act.name, nullptr, delims, &sep, &suf_act, from_right);
/* NOTE: in case we are searching for suffix, and found none, use whole name as suffix. */
if (from_right && !(sep && suf_act)) {
pref_len_act = 0;
suf_act = node_act.name;
}
for (bNode *node : node_tree.all_nodes()) {
if (node->flag & SELECT) {
continue;
}
pref_len_curr = BLI_str_partition_ex_utf8(
node->name, nullptr, delims, &sep, &suf_curr, from_right);
/* Same as with active node name! */
if (from_right && !(sep && suf_curr)) {
pref_len_curr = 0;
suf_curr = node->name;
}
if ((from_right && STREQ(suf_act, suf_curr)) ||
(!from_right && (pref_len_act == pref_len_curr) &&
STREQLEN(node_act.name, node->name, pref_len_act))) {
nodeSetSelected(node, true);
changed = true;
}
}
return changed;
}
enum {
NODE_SELECT_GROUPED_TYPE = 0,
NODE_SELECT_GROUPED_COLOR = 1,
NODE_SELECT_GROUPED_PREFIX = 2,
NODE_SELECT_GROUPED_SUFIX = 3,
};
static int node_select_grouped_exec(bContext *C, wmOperator *op)
{
SpaceNode &snode = *CTX_wm_space_node(C);
bNodeTree &node_tree = *snode.edittree;
bNode *node_act = nodeGetActive(snode.edittree);
if (node_act == nullptr) {
return OPERATOR_CANCELLED;
}
bool changed = false;
const bool extend = RNA_boolean_get(op->ptr, "extend");
const int type = RNA_enum_get(op->ptr, "type");
if (!extend) {
node_deselect_all(node_tree);
}
nodeSetSelected(node_act, true);
switch (type) {
case NODE_SELECT_GROUPED_TYPE:
changed = node_select_grouped_type(node_tree, *node_act);
break;
case NODE_SELECT_GROUPED_COLOR:
changed = node_select_grouped_color(node_tree, *node_act);
break;
case NODE_SELECT_GROUPED_PREFIX:
changed = node_select_grouped_name(node_tree, *node_act, false);
break;
case NODE_SELECT_GROUPED_SUFIX:
changed = node_select_grouped_name(node_tree, *node_act, true);
break;
default:
break;
}
if (changed) {
node_sort(node_tree);
WM_event_add_notifier(C, NC_NODE | NA_SELECTED, nullptr);
return OPERATOR_FINISHED;
}
return OPERATOR_CANCELLED;
}
void NODE_OT_select_grouped(wmOperatorType *ot)
{
PropertyRNA *prop;
static const EnumPropertyItem prop_select_grouped_types[] = {
{NODE_SELECT_GROUPED_TYPE, "TYPE", 0, "Type", ""},
{NODE_SELECT_GROUPED_COLOR, "COLOR", 0, "Color", ""},
{NODE_SELECT_GROUPED_PREFIX, "PREFIX", 0, "Prefix", ""},
{NODE_SELECT_GROUPED_SUFIX, "SUFFIX", 0, "Suffix", ""},
{0, nullptr, 0, nullptr, nullptr},
};
/* identifiers */
ot->name = "Select Grouped";
ot->description = "Select nodes with similar properties";
ot->idname = "NODE_OT_select_grouped";
/* api callbacks */
ot->invoke = WM_menu_invoke;
ot->exec = node_select_grouped_exec;
ot->poll = ED_operator_node_active;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
/* properties */
prop = RNA_def_boolean(ot->srna,
"extend",
false,
"Extend",
"Extend selection instead of deselecting everything first");
RNA_def_property_flag(prop, PROP_SKIP_SAVE);
ot->prop = RNA_def_enum(ot->srna, "type", prop_select_grouped_types, 0, "Type", "");
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Select (Cursor Pick) Operator
* \{ */
void node_select_single(bContext &C, bNode &node)
{
Main *bmain = CTX_data_main(&C);
SpaceNode &snode = *CTX_wm_space_node(&C);
bNodeTree &node_tree = *snode.edittree;
const Object *ob = CTX_data_active_object(&C);
const Scene *scene = CTX_data_scene(&C);
const wmWindowManager *wm = CTX_wm_manager(&C);
bool active_texture_changed = false;
for (bNode *node_iter : node_tree.all_nodes()) {
if (node_iter != &node) {
nodeSetSelected(node_iter, false);
}
}
nodeSetSelected(&node, true);
ED_node_set_active(bmain, &snode, &node_tree, &node, &active_texture_changed);
ED_node_set_active_viewer_key(&snode);
node_sort(node_tree);
if (active_texture_changed && has_workbench_in_texture_color(wm, scene, ob)) {
DEG_id_tag_update(&node_tree.id, ID_RECALC_COPY_ON_WRITE);
}
WM_event_add_notifier(&C, NC_NODE | NA_SELECTED, nullptr);
}
static bool node_mouse_select(bContext *C,
wmOperator *op,
const int2 mval,
SelectPick_Params *params)
{
Main &bmain = *CTX_data_main(C);
SpaceNode &snode = *CTX_wm_space_node(C);
bNodeTree &node_tree = *snode.edittree;
ARegion &region = *CTX_wm_region(C);
const Object *ob = CTX_data_active_object(C);
const Scene *scene = CTX_data_scene(C);
const wmWindowManager *wm = CTX_wm_manager(C);
bNode *node = nullptr;
bNodeSocket *sock = nullptr;
/* Always do socket_select when extending selection. */
const bool socket_select = (params->sel_op == SEL_OP_XOR) ||
RNA_boolean_get(op->ptr, "socket_select");
bool changed = false;
bool found = false;
bool node_was_selected = false;
/* Get mouse coordinates in view2d space. */
float2 cursor;
UI_view2d_region_to_view(&region.v2d, mval.x, mval.y, &cursor.x, &cursor.y);
/* First do socket selection, these generally overlap with nodes. */
if (socket_select) {
/* NOTE: unlike nodes #SelectPick_Params isn't fully supported. */
const bool extend = (params->sel_op == SEL_OP_XOR);
sock = node_find_indicated_socket(snode, cursor, SOCK_IN);
if (sock) {
node = &sock->owner_node();
found = true;
node_was_selected = node->flag & SELECT;
/* NOTE: SOCK_IN does not take into account the extend case...
* This feature is not really used anyway currently? */
node_socket_toggle(node, *sock, true);
changed = true;
}
if (!changed) {
sock = node_find_indicated_socket(snode, cursor, SOCK_OUT);
if (sock) {
node = &sock->owner_node();
found = true;
node_was_selected = node->flag & SELECT;
if (sock->flag & SELECT) {
if (extend) {
node_socket_deselect(node, *sock, true);
changed = true;
}
}
else {
/* Only allow one selected output per node, for sensible linking.
* Allow selecting outputs from different nodes though, if extend is true. */
for (bNodeSocket *tsock : node->output_sockets()) {
if (tsock == sock) {
continue;
}
node_socket_deselect(node, *tsock, true);
changed = true;
}
if (!extend) {
for (bNode *tnode : node_tree.all_nodes()) {
if (tnode == node) {
continue;
}
for (bNodeSocket *tsock : tnode->output_sockets()) {
node_socket_deselect(tnode, *tsock, true);
changed = true;
}
}
}
node_socket_select(node, *sock);
changed = true;
}
}
}
}
if (!sock) {
/* Find the closest visible node. */
node = node_under_mouse_select(node_tree, cursor);
found = (node != nullptr);
node_was_selected = node && (node->flag & SELECT);
if (params->sel_op == SEL_OP_SET) {
if ((found && params->select_passthrough) && (node->flag & SELECT)) {
found = false;
}
else if (found || params->deselect_all) {
/* Deselect everything. */
node_deselect_all(node_tree);
changed = true;
}
}
if (found) {
switch (params->sel_op) {
case SEL_OP_ADD:
nodeSetSelected(node, true);
break;
case SEL_OP_SUB:
nodeSetSelected(node, false);
break;
case SEL_OP_XOR: {
/* Check active so clicking on an inactive node activates it. */
bool is_selected = (node->flag & NODE_SELECT) && (node->flag & NODE_ACTIVE);
nodeSetSelected(node, !is_selected);
break;
}
case SEL_OP_SET:
nodeSetSelected(node, true);
break;
case SEL_OP_AND:
/* Doesn't make sense for picking. */
BLI_assert_unreachable();
break;
}
changed = true;
}
}
if (RNA_boolean_get(op->ptr, "clear_viewer")) {
if (node == nullptr) {
/* Disable existing active viewer. */
WorkSpace *workspace = CTX_wm_workspace(C);
BKE_viewer_path_clear(&workspace->viewer_path);
WM_event_add_notifier(C, NC_VIEWER_PATH, nullptr);
}
}
if (!(changed || found)) {
return false;
}
bool active_texture_changed = false;
bool viewer_node_changed = false;
if ((node != nullptr) && (node_was_selected == false || params->select_passthrough == false)) {
viewer_node_changed = (node->flag & NODE_DO_OUTPUT) == 0 && node->type == GEO_NODE_VIEWER;
ED_node_set_active(&bmain, &snode, snode.edittree, node, &active_texture_changed);
}
else if (node != nullptr && node->type == GEO_NODE_VIEWER) {
viewer_path::activate_geometry_node(bmain, snode, *node);
}
ED_node_set_active_viewer_key(&snode);
node_sort(node_tree);
if ((active_texture_changed && has_workbench_in_texture_color(wm, scene, ob)) ||
viewer_node_changed) {
DEG_id_tag_update(&snode.edittree->id, ID_RECALC_COPY_ON_WRITE);
}
WM_event_add_notifier(C, NC_NODE | NA_SELECTED, nullptr);
return true;
}
static int node_select_exec(bContext *C, wmOperator *op)
{
/* Get settings from RNA properties for operator. */
int2 mval;
RNA_int_get_array(op->ptr, "location", mval);
SelectPick_Params params = {};
ED_select_pick_params_from_operator(op->ptr, &params);
/* Perform the selection. */
const bool changed = node_mouse_select(C, op, mval, &params);
if (changed) {
return OPERATOR_PASS_THROUGH | OPERATOR_FINISHED;
}
/* Nothing selected, just pass through. */
return OPERATOR_PASS_THROUGH | OPERATOR_CANCELLED;
}
static int node_select_invoke(bContext *C, wmOperator *op, const wmEvent *event)
{
RNA_int_set_array(op->ptr, "location", event->mval);
const int retval = node_select_exec(C, op);
return WM_operator_flag_only_pass_through_on_press(retval, event);
}
void NODE_OT_select(wmOperatorType *ot)
{
PropertyRNA *prop;
/* identifiers */
ot->name = "Select";
ot->idname = "NODE_OT_select";
ot->description = "Select the node under the cursor";
/* api callbacks */
ot->exec = node_select_exec;
ot->invoke = node_select_invoke;
ot->poll = ED_operator_node_active;
ot->get_name = ED_select_pick_get_name;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
/* properties */
WM_operator_properties_mouse_select(ot);
prop = RNA_def_int_vector(ot->srna,
"location",
2,
nullptr,
INT_MIN,
INT_MAX,
"Location",
"Mouse location",
INT_MIN,
INT_MAX);
RNA_def_property_flag(prop, PROP_HIDDEN);
RNA_def_boolean(ot->srna, "socket_select", false, "Socket Select", "");
RNA_def_boolean(ot->srna,
"clear_viewer",
false,
"Clear Viewer",
"Deactivate geometry nodes viewer when clicking in empty space");
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Box Select Operator
* \{ */
static int node_box_select_exec(bContext *C, wmOperator *op)
{
SpaceNode &snode = *CTX_wm_space_node(C);
bNodeTree &node_tree = *snode.edittree;
const ARegion &region = *CTX_wm_region(C);
rctf rectf;
WM_operator_properties_border_to_rctf(op, &rectf);
UI_view2d_region_to_view_rctf(&region.v2d, &rectf, &rectf);
const eSelectOp sel_op = (eSelectOp)RNA_enum_get(op->ptr, "mode");
const bool select = (sel_op != SEL_OP_SUB);
if (SEL_OP_USE_PRE_DESELECT(sel_op)) {
node_deselect_all(node_tree);
}
for (bNode *node : node_tree.all_nodes()) {
bool is_inside = false;
switch (node->type) {
case NODE_FRAME: {
/* Frame nodes are selectable by their borders (including their whole rect - as for other
* nodes - would prevent selection of other nodes inside that frame. */
const rctf frame_inside = node_frame_rect_inside(*node);
if (BLI_rctf_isect(&rectf, &node->runtime->totr, nullptr) &&
!BLI_rctf_inside_rctf(&frame_inside, &rectf)) {
nodeSetSelected(node, select);
is_inside = true;
}
break;
}
default: {
is_inside = BLI_rctf_isect(&rectf, &node->runtime->totr, nullptr);
break;
}
}
if (is_inside) {
nodeSetSelected(node, select);
}
}
node_sort(node_tree);
WM_event_add_notifier(C, NC_NODE | NA_SELECTED, nullptr);
return OPERATOR_FINISHED;
}
static int node_box_select_invoke(bContext *C, wmOperator *op, const wmEvent *event)
{
const bool tweak = RNA_boolean_get(op->ptr, "tweak");
if (tweak && is_event_over_node_or_socket(*C, *event)) {
return OPERATOR_CANCELLED | OPERATOR_PASS_THROUGH;
}
return WM_gesture_box_invoke(C, op, event);
}
void NODE_OT_select_box(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Box Select";
ot->idname = "NODE_OT_select_box";
ot->description = "Use box selection to select nodes";
/* api callbacks */
ot->invoke = node_box_select_invoke;
ot->exec = node_box_select_exec;
ot->modal = WM_gesture_box_modal;
ot->cancel = WM_gesture_box_cancel;
ot->poll = ED_operator_node_active;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
/* properties */
RNA_def_boolean(ot->srna,
"tweak",
false,
"Tweak",
"Only activate when mouse is not over a node (useful for tweak gesture)");
WM_operator_properties_gesture_box(ot);
WM_operator_properties_select_operation_simple(ot);
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Circle Select Operator
* \{ */
static int node_circleselect_exec(bContext *C, wmOperator *op)
{
SpaceNode *snode = CTX_wm_space_node(C);
ARegion *region = CTX_wm_region(C);
bNodeTree &node_tree = *snode->edittree;
int x, y, radius;
float2 offset;
float zoom = float(BLI_rcti_size_x(&region->winrct)) / float(BLI_rctf_size_x(&region->v2d.cur));
const eSelectOp sel_op = ED_select_op_modal(
(eSelectOp)RNA_enum_get(op->ptr, "mode"),
WM_gesture_is_modal_first((const wmGesture *)op->customdata));
const bool select = (sel_op != SEL_OP_SUB);
if (SEL_OP_USE_PRE_DESELECT(sel_op)) {
node_deselect_all(node_tree);
}
/* get operator properties */
x = RNA_int_get(op->ptr, "x");
y = RNA_int_get(op->ptr, "y");
radius = RNA_int_get(op->ptr, "radius");
UI_view2d_region_to_view(&region->v2d, x, y, &offset.x, &offset.y);
for (bNode *node : node_tree.all_nodes()) {
switch (node->type) {
case NODE_FRAME: {
/* Frame nodes are selectable by their borders (including their whole rect - as for other
* nodes - would prevent selection of _only_ other nodes inside that frame. */
rctf frame_inside = node_frame_rect_inside(*node);
const float radius_adjusted = float(radius) / zoom;
BLI_rctf_pad(&frame_inside, -2.0f * radius_adjusted, -2.0f * radius_adjusted);
if (BLI_rctf_isect_circle(&node->runtime->totr, offset, radius_adjusted) &&
!BLI_rctf_isect_circle(&frame_inside, offset, radius_adjusted)) {
nodeSetSelected(node, select);
}
break;
}
default: {
if (BLI_rctf_isect_circle(&node->runtime->totr, offset, radius / zoom)) {
nodeSetSelected(node, select);
}
break;
}
}
}
WM_event_add_notifier(C, NC_NODE | NA_SELECTED, nullptr);
return OPERATOR_FINISHED;
}
void NODE_OT_select_circle(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Circle Select";
ot->idname = "NODE_OT_select_circle";
ot->description = "Use circle selection to select nodes";
/* api callbacks */
ot->invoke = WM_gesture_circle_invoke;
ot->exec = node_circleselect_exec;
ot->modal = WM_gesture_circle_modal;
ot->poll = ED_operator_node_active;
ot->get_name = ED_select_circle_get_name;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
/* properties */
WM_operator_properties_gesture_circle(ot);
WM_operator_properties_select_operation_simple(ot);
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Lasso Select Operator
* \{ */
static int node_lasso_select_invoke(bContext *C, wmOperator *op, const wmEvent *event)
{
const bool tweak = RNA_boolean_get(op->ptr, "tweak");
if (tweak && is_event_over_node_or_socket(*C, *event)) {
return OPERATOR_CANCELLED | OPERATOR_PASS_THROUGH;
}
return WM_gesture_lasso_invoke(C, op, event);
}
static bool do_lasso_select_node(bContext *C,
const int mcoords[][2],
const int mcoords_len,
eSelectOp sel_op)
{
SpaceNode *snode = CTX_wm_space_node(C);
bNodeTree &node_tree = *snode->edittree;
ARegion *region = CTX_wm_region(C);
rcti rect;
bool changed = false;
const bool select = (sel_op != SEL_OP_SUB);
if (SEL_OP_USE_PRE_DESELECT(sel_op)) {
node_deselect_all(node_tree);
changed = true;
}
/* Get rectangle from operator. */
BLI_lasso_boundbox(&rect, mcoords, mcoords_len);
for (bNode *node : node_tree.all_nodes()) {
if (select && (node->flag & NODE_SELECT)) {
continue;
}
switch (node->type) {
case NODE_FRAME: {
/* Frame nodes are selectable by their borders (including their whole rect - as for other
* nodes - would prevent selection of other nodes inside that frame. */
rctf rectf;
BLI_rctf_rcti_copy(&rectf, &rect);
UI_view2d_region_to_view_rctf(&region->v2d, &rectf, &rectf);
const rctf frame_inside = node_frame_rect_inside(*node);
if (BLI_rctf_isect(&rectf, &node->runtime->totr, nullptr) &&
!BLI_rctf_inside_rctf(&frame_inside, &rectf)) {
nodeSetSelected(node, select);
changed = true;
}
break;
}
default: {
int2 screen_co;
const float2 center = {BLI_rctf_cent_x(&node->runtime->totr),
BLI_rctf_cent_y(&node->runtime->totr)};
/* marker in screen coords */
if (UI_view2d_view_to_region_clip(
&region->v2d, center.x, center.y, &screen_co.x, &screen_co.y) &&
BLI_rcti_isect_pt(&rect, screen_co.x, screen_co.y) &&
BLI_lasso_is_point_inside(mcoords, mcoords_len, screen_co.x, screen_co.y, INT_MAX)) {
nodeSetSelected(node, select);
changed = true;
}
break;
}
}
}
if (changed) {
WM_event_add_notifier(C, NC_NODE | NA_SELECTED, nullptr);
}
return changed;
}
static int node_lasso_select_exec(bContext *C, wmOperator *op)
{
int mcoords_len;
const int(*mcoords)[2] = WM_gesture_lasso_path_to_array(C, op, &mcoords_len);
if (mcoords) {
const eSelectOp sel_op = (eSelectOp)RNA_enum_get(op->ptr, "mode");
do_lasso_select_node(C, mcoords, mcoords_len, sel_op);
MEM_freeN((void *)mcoords);
return OPERATOR_FINISHED;
}
return OPERATOR_PASS_THROUGH;
}
void NODE_OT_select_lasso(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Lasso Select";
ot->description = "Select nodes using lasso selection";
ot->idname = "NODE_OT_select_lasso";
/* api callbacks */
ot->invoke = node_lasso_select_invoke;
ot->modal = WM_gesture_lasso_modal;
ot->exec = node_lasso_select_exec;
ot->poll = ED_operator_node_active;
ot->cancel = WM_gesture_lasso_cancel;
/* flags */
ot->flag = OPTYPE_UNDO | OPTYPE_DEPENDS_ON_CURSOR;
/* properties */
RNA_def_boolean(ot->srna,
"tweak",
false,
"Tweak",
"Only activate when mouse is not over a node (useful for tweak gesture)");
WM_operator_properties_gesture_lasso(ot);
WM_operator_properties_select_operation_simple(ot);
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name (De)select All Operator
* \{ */
static bool any_node_selected(const bNodeTree &node_tree)
{
for (const bNode *node : node_tree.all_nodes()) {
if (node->flag & NODE_SELECT) {
return true;
}
}
return false;
}
static int node_select_all_exec(bContext *C, wmOperator *op)
{
SpaceNode &snode = *CTX_wm_space_node(C);
bNodeTree &node_tree = *snode.edittree;
node_tree.ensure_topology_cache();
int action = RNA_enum_get(op->ptr, "action");
if (action == SEL_TOGGLE) {
if (any_node_selected(node_tree)) {
action = SEL_DESELECT;
}
else {
action = SEL_SELECT;
}
}
switch (action) {
case SEL_SELECT:
for (bNode *node : node_tree.all_nodes()) {
nodeSetSelected(node, true);
}
break;
case SEL_DESELECT:
node_deselect_all(node_tree);
break;
case SEL_INVERT:
for (bNode *node : node_tree.all_nodes()) {
nodeSetSelected(node, !(node->flag & SELECT));
}
break;
}
node_sort(node_tree);
WM_event_add_notifier(C, NC_NODE | NA_SELECTED, nullptr);
return OPERATOR_FINISHED;
}
void NODE_OT_select_all(wmOperatorType *ot)
{
/* identifiers */
ot->name = "(De)select All";
ot->description = "(De)select all nodes";
ot->idname = "NODE_OT_select_all";
/* api callbacks */
ot->exec = node_select_all_exec;
ot->poll = ED_operator_node_active;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
WM_operator_properties_select_all(ot);
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Select Linked To Operator
* \{ */
static int node_select_linked_to_exec(bContext *C, wmOperator * /*op*/)
{
SpaceNode &snode = *CTX_wm_space_node(C);
bNodeTree &node_tree = *snode.edittree;
node_tree.ensure_topology_cache();
VectorSet<bNode *> initial_selection = get_selected_nodes(node_tree);
for (bNode *node : initial_selection) {
for (bNodeSocket *output_socket : node->output_sockets()) {
if (!output_socket->is_available()) {
continue;
}
for (bNodeSocket *input_socket : output_socket->directly_linked_sockets()) {
if (!input_socket->is_available()) {
continue;
}
nodeSetSelected(&input_socket->owner_node(), true);
}
}
}
node_sort(node_tree);
WM_event_add_notifier(C, NC_NODE | NA_SELECTED, nullptr);
return OPERATOR_FINISHED;
}
void NODE_OT_select_linked_to(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Select Linked To";
ot->description = "Select nodes linked to the selected ones";
ot->idname = "NODE_OT_select_linked_to";
/* api callbacks */
ot->exec = node_select_linked_to_exec;
ot->poll = ED_operator_node_active;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Select Linked From Operator
* \{ */
static int node_select_linked_from_exec(bContext *C, wmOperator * /*op*/)
{
SpaceNode &snode = *CTX_wm_space_node(C);
bNodeTree &node_tree = *snode.edittree;
node_tree.ensure_topology_cache();
VectorSet<bNode *> initial_selection = get_selected_nodes(node_tree);
for (bNode *node : initial_selection) {
for (bNodeSocket *input_socket : node->input_sockets()) {
if (!input_socket->is_available()) {
continue;
}
for (bNodeSocket *output_socket : input_socket->directly_linked_sockets()) {
if (!output_socket->is_available()) {
continue;
}
nodeSetSelected(&output_socket->owner_node(), true);
}
}
}
node_sort(node_tree);
WM_event_add_notifier(C, NC_NODE | NA_SELECTED, nullptr);
return OPERATOR_FINISHED;
}
void NODE_OT_select_linked_from(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Select Linked From";
ot->description = "Select nodes linked from the selected ones";
ot->idname = "NODE_OT_select_linked_from";
/* api callbacks */
ot->exec = node_select_linked_from_exec;
ot->poll = ED_operator_node_active;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Select Same Type Step Operator
* \{ */
static bool nodes_are_same_type_for_select(const bNode &a, const bNode &b)
{
return a.type == b.type;
}
static int node_select_same_type_step_exec(bContext *C, wmOperator *op)
{
SpaceNode *snode = CTX_wm_space_node(C);
ARegion *region = CTX_wm_region(C);
const bool prev = RNA_boolean_get(op->ptr, "prev");
bNode &active_node = *nodeGetActive(snode->edittree);
bNodeTree &node_tree = *snode->edittree;
node_tree.ensure_topology_cache();
if (node_tree.all_nodes().size() == 1) {
return OPERATOR_CANCELLED;
}
const Span<const bNode *> toposort = node_tree.toposort_left_to_right();
const int index = toposort.first_index(&active_node);
int new_index = index;
while (true) {
new_index += (prev ? -1 : 1);
if (!toposort.index_range().contains(new_index)) {
return OPERATOR_CANCELLED;
}
if (nodes_are_same_type_for_select(*toposort[new_index], active_node)) {
break;
}
}
bNode *new_active_node = node_tree.all_nodes()[toposort[new_index]->index()];
if (new_active_node == &active_node) {
return OPERATOR_CANCELLED;
}
node_select_single(*C, *new_active_node);
if (!BLI_rctf_inside_rctf(&region->v2d.cur, &new_active_node->runtime->totr)) {
const int smooth_viewtx = WM_operator_smooth_viewtx_get(op);
space_node_view_flag(*C, *snode, *region, NODE_SELECT, smooth_viewtx);
}
return OPERATOR_FINISHED;
}
void NODE_OT_select_same_type_step(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Activate Same Type Next/Prev";
ot->description = "Activate and view same node type, step by step";
ot->idname = "NODE_OT_select_same_type_step";
/* api callbacks */
ot->exec = node_select_same_type_step_exec;
ot->poll = ED_operator_node_active;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
RNA_def_boolean(ot->srna, "prev", false, "Previous", "");
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Find Node by Name Operator
* \{ */
static void node_find_create_label(const bNode *node, char *str, int maxlen)
{
if (node->label[0]) {
BLI_snprintf(str, maxlen, "%s (%s)", node->name, node->label);
}
else {
BLI_strncpy(str, node->name, maxlen);
}
}
/* Generic search invoke. */
static void node_find_update_fn(const bContext *C,
void * /*arg*/,
const char *str,
uiSearchItems *items,
const bool /*is_first*/)
{
SpaceNode *snode = CTX_wm_space_node(C);
StringSearch *search = BLI_string_search_new();
for (bNode *node : snode->edittree->all_nodes()) {
char name[256];
node_find_create_label(node, name, ARRAY_SIZE(name));
BLI_string_search_add(search, name, node, 0);
}
bNode **filtered_nodes;
int filtered_amount = BLI_string_search_query(search, str, (void ***)&filtered_nodes);
for (int i = 0; i < filtered_amount; i++) {
bNode *node = filtered_nodes[i];
char name[256];
node_find_create_label(node, name, ARRAY_SIZE(name));
if (!UI_search_item_add(items, name, node, ICON_NONE, 0, 0)) {
break;
}
}
MEM_freeN(filtered_nodes);
BLI_string_search_free(search);
}
static void node_find_exec_fn(bContext *C, void * /*arg1*/, void *arg2)
{
SpaceNode *snode = CTX_wm_space_node(C);
bNode *active = (bNode *)arg2;
if (active) {
ARegion *region = CTX_wm_region(C);
node_select_single(*C, *active);
if (!BLI_rctf_inside_rctf(&region->v2d.cur, &active->runtime->totr)) {
space_node_view_flag(*C, *snode, *region, NODE_SELECT, U.smooth_viewtx);
}
}
}
static uiBlock *node_find_menu(bContext *C, ARegion *region, void *arg_op)
{
static char search[256] = "";
uiBlock *block;
uiBut *but;
wmOperator *op = (wmOperator *)arg_op;
block = UI_block_begin(C, region, "_popup", UI_EMBOSS);
UI_block_flag_enable(block, UI_BLOCK_LOOP | UI_BLOCK_MOVEMOUSE_QUIT | UI_BLOCK_SEARCH_MENU);
UI_block_theme_style_set(block, UI_BLOCK_THEME_STYLE_POPUP);
but = uiDefSearchBut(block,
search,
0,
ICON_VIEWZOOM,
sizeof(search),
10,
10,
UI_searchbox_size_x(),
UI_UNIT_Y,
0,
0,
"");
UI_but_func_search_set(
but, nullptr, node_find_update_fn, op->type, false, nullptr, node_find_exec_fn, nullptr);
UI_but_flag_enable(but, UI_BUT_ACTIVATE_ON_INIT);
/* Fake button holds space for search items. */
uiDefBut(block,
UI_BTYPE_LABEL,
0,
"",
10,
10 - UI_searchbox_size_y(),
UI_searchbox_size_x(),
UI_searchbox_size_y(),
nullptr,
0,
0,
0,
0,
nullptr);
/* Move it downwards, mouse over button. */
std::array<int, 2> bounds_offset = {0, -UI_UNIT_Y};
UI_block_bounds_set_popup(block, 0.3f * U.widget_unit, bounds_offset.data());
return block;
}
static int node_find_node_invoke(bContext *C, wmOperator *op, const wmEvent * /*event*/)
{
UI_popup_block_invoke(C, node_find_menu, op, nullptr);
return OPERATOR_CANCELLED;
}
void NODE_OT_find_node(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Find Node";
ot->description = "Search for a node by name and focus and select it";
ot->idname = "NODE_OT_find_node";
/* api callbacks */
ot->invoke = node_find_node_invoke;
ot->poll = ED_operator_node_active;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
}
/** \} */
} // namespace blender::ed::space_node