本文整理汇总了C++中GraphNode::get_drag_from方法的典型用法代码示例。如果您正苦于以下问题：C++ GraphNode::get_drag_from方法的具体用法？C++ GraphNode::get_drag_from怎么用？C++ GraphNode::get_drag_from使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类GraphNode的用法示例。
在下文中一共展示了GraphNode::get_drag_from方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: _gui_input
void GraphEdit::_gui_input(const Ref<InputEvent> &p_ev) {
Ref<InputEventMouseMotion> mm = p_ev;
if (mm.is_valid() && (mm->get_button_mask() & BUTTON_MASK_MIDDLE || (mm->get_button_mask() & BUTTON_MASK_LEFT && Input::get_singleton()->is_key_pressed(KEY_SPACE)))) {
h_scroll->set_value(h_scroll->get_value() - mm->get_relative().x);
v_scroll->set_value(v_scroll->get_value() - mm->get_relative().y);
}
if (mm.is_valid() && dragging) {
just_selected = true;
// TODO: Remove local mouse pos hack if/when InputEventMouseMotion is fixed to support floats
//drag_accum+=Vector2(mm->get_relative().x,mm->get_relative().y);
drag_accum = get_local_mouse_position() - drag_origin;
for (int i = get_child_count() - 1; i >= 0; i--) {
GraphNode *gn = Object::cast_to<GraphNode>(get_child(i));
if (gn && gn->is_selected()) {
Vector2 pos = (gn->get_drag_from() * zoom + drag_accum) / zoom;
if (is_using_snap()) {
int snap = get_snap();
pos = pos.snapped(Vector2(snap, snap));
}
gn->set_offset(pos);
}
}
}
if (mm.is_valid() && box_selecting) {
box_selecting_to = get_local_mouse_position();
box_selecting_rect = Rect2(MIN(box_selecting_from.x, box_selecting_to.x),
MIN(box_selecting_from.y, box_selecting_to.y),
ABS(box_selecting_from.x - box_selecting_to.x),
ABS(box_selecting_from.y - box_selecting_to.y));
for (int i = get_child_count() - 1; i >= 0; i--) {
GraphNode *gn = Object::cast_to<GraphNode>(get_child(i));
if (!gn)
continue;
Rect2 r = gn->get_rect();
r.size *= zoom;
bool in_box = r.intersects(box_selecting_rect);
if (in_box)
gn->set_selected(box_selection_mode_aditive);
else
gn->set_selected(previus_selected.find(gn) != NULL);
}
top_layer->update();
}
Ref<InputEventMouseButton> b = p_ev;
if (b.is_valid()) {
if (b->get_button_index() == BUTTON_RIGHT && b->is_pressed()) {
if (box_selecting) {
box_selecting = false;
for (int i = get_child_count() - 1; i >= 0; i--) {
GraphNode *gn = Object::cast_to<GraphNode>(get_child(i));
if (!gn)
continue;
gn->set_selected(previus_selected.find(gn) != NULL);
}
top_layer->update();
} else {
if (connecting) {
connecting = false;
top_layer->update();
} else {
emit_signal("popup_request", b->get_global_position());
}
}
}
if (b->get_button_index() == BUTTON_LEFT && !b->is_pressed() && dragging) {
if (!just_selected && drag_accum == Vector2() && Input::get_singleton()->is_key_pressed(KEY_CONTROL)) {
//deselect current node
for (int i = get_child_count() - 1; i >= 0; i--) {
GraphNode *gn = Object::cast_to<GraphNode>(get_child(i));
if (gn) {
Rect2 r = gn->get_rect();
r.size *= zoom;
if (r.has_point(get_local_mouse_position()))
gn->set_selected(false);
}
}
}
if (drag_accum != Vector2()) {
emit_signal("_begin_node_move");
//.........这里部分代码省略.........
示例2: _gui_input
void GraphEdit::_gui_input(const InputEvent &p_ev) {
if (p_ev.type == InputEvent::MOUSE_MOTION && (p_ev.mouse_motion.button_mask & BUTTON_MASK_MIDDLE || (p_ev.mouse_motion.button_mask & BUTTON_MASK_LEFT && Input::get_singleton()->is_key_pressed(KEY_SPACE)))) {
h_scroll->set_value(h_scroll->get_value() - p_ev.mouse_motion.relative_x);
v_scroll->set_value(v_scroll->get_value() - p_ev.mouse_motion.relative_y);
}
if (p_ev.type == InputEvent::MOUSE_MOTION && dragging) {
just_selected = true;
// TODO: Remove local mouse pos hack if/when InputEventMouseMotion is fixed to support floats
//drag_accum+=Vector2(p_ev.mouse_motion.relative_x,p_ev.mouse_motion.relative_y);
drag_accum = get_local_mouse_pos() - drag_origin;
for (int i = get_child_count() - 1; i >= 0; i--) {
GraphNode *gn = get_child(i)->cast_to<GraphNode>();
if (gn && gn->is_selected()) {
Vector2 pos = (gn->get_drag_from() * zoom + drag_accum) / zoom;
if (is_using_snap()) {
int snap = get_snap();
pos = pos.snapped(Vector2(snap, snap));
}
gn->set_offset(pos);
}
}
}
if (p_ev.type == InputEvent::MOUSE_MOTION && box_selecting) {
box_selecting_to = get_local_mouse_pos();
box_selecting_rect = Rect2(MIN(box_selecting_from.x, box_selecting_to.x),
MIN(box_selecting_from.y, box_selecting_to.y),
ABS(box_selecting_from.x - box_selecting_to.x),
ABS(box_selecting_from.y - box_selecting_to.y));
for (int i = get_child_count() - 1; i >= 0; i--) {
GraphNode *gn = get_child(i)->cast_to<GraphNode>();
if (!gn)
continue;
Rect2 r = gn->get_rect();
r.size *= zoom;
bool in_box = r.intersects(box_selecting_rect);
if (in_box)
gn->set_selected(box_selection_mode_aditive);
else
gn->set_selected(previus_selected.find(gn) != NULL);
}
top_layer->update();
}
if (p_ev.type == InputEvent::MOUSE_BUTTON) {
const InputEventMouseButton &b = p_ev.mouse_button;
if (b.button_index == BUTTON_RIGHT && b.pressed) {
if (box_selecting) {
box_selecting = false;
for (int i = get_child_count() - 1; i >= 0; i--) {
GraphNode *gn = get_child(i)->cast_to<GraphNode>();
if (!gn)
continue;
gn->set_selected(previus_selected.find(gn) != NULL);
}
top_layer->update();
} else {
if (connecting) {
connecting = false;
top_layer->update();
} else {
emit_signal("popup_request", Vector2(b.global_x, b.global_y));
}
}
}
if (b.button_index == BUTTON_LEFT && !b.pressed && dragging) {
if (!just_selected && drag_accum == Vector2() && Input::get_singleton()->is_key_pressed(KEY_CONTROL)) {
//deselect current node
for (int i = get_child_count() - 1; i >= 0; i--) {
GraphNode *gn = get_child(i)->cast_to<GraphNode>();
if (gn) {
Rect2 r = gn->get_rect();
r.size *= zoom;
if (r.has_point(get_local_mouse_pos()))
gn->set_selected(false);
}
}
}
if (drag_accum != Vector2()) {
emit_signal("_begin_node_move");
//.........这里部分代码省略.........