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virtualx-engine/tools/editor/plugins/path_2d_editor_plugin.cpp
Juan Linietsky 118eed485e ObjectTypeDB was renamed to ClassDB. Types are meant to be more generic to Variant. 
All usages of "type" to refer to classes were renamed to "class"
ClassDB has been exposed to GDScript.
OBJ_TYPE() macro is now GDCLASS()
2017-01-02 23:03:46 -03:00

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/*************************************************************************/
/* path_2d_editor_plugin.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "path_2d_editor_plugin.h"
#include "canvas_item_editor_plugin.h"
#include "os/file_access.h"
#include "tools/editor/editor_settings.h"
#include "os/keyboard.h"
void Path2DEditor::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_READY: {
// button_create->set_icon( get_icon("Edit","EditorIcons"));
//button_edit->set_icon( get_icon("MovePoint","EditorIcons"));
//set_pressed_button(button_edit);
//button_edit->set_pressed(true);
} break;
case NOTIFICATION_FIXED_PROCESS: {
} break;
}
}
void Path2DEditor::_node_removed(Node *p_node) {
if(p_node==node) {
node=NULL;
hide();
}
}
bool Path2DEditor::forward_input_event(const InputEvent& p_event) {
if (!node)
return false;
if (!node->is_visible())
return false;
if (!node->get_curve().is_valid())
return false;
switch(p_event.type) {
case InputEvent::MOUSE_BUTTON: {
const InputEventMouseButton &mb=p_event.mouse_button;
Matrix32 xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
Vector2 gpoint = Point2(mb.x,mb.y);
Vector2 cpoint = !mb.mod.alt? canvas_item_editor->snap_point(xform.affine_inverse().xform(gpoint))
: node->get_global_transform().affine_inverse().xform( canvas_item_editor->snap_point(canvas_item_editor->get_canvas_transform().affine_inverse().xform(gpoint)) );
//first check if a point is to be added (segment split)
real_t grab_treshold=EDITOR_DEF("poly_editor/point_grab_radius",8);
// Test move point!!
if ( mb.pressed && action==ACTION_NONE ) {
Ref<Curve2D> curve = node->get_curve();
for(int i=0;i<curve->get_point_count();i++) {
bool pointunder=false;
{
Point2 p = xform.xform( curve->get_point_pos(i) );
if (gpoint.distance_to(p) < grab_treshold ) {
if (mb.button_index==BUTTON_LEFT && !mb.mod.shift && mode==MODE_EDIT) {
action=ACTION_MOVING_POINT;
action_point=i;
moving_from=curve->get_point_pos(i);
moving_screen_from=gpoint;
return true;
} else if ((mb.button_index==BUTTON_RIGHT && mode==MODE_EDIT) || (mb.button_index==BUTTON_LEFT && mode==MODE_DELETE)) {
undo_redo->create_action(TTR("Remove Point from Curve"));
undo_redo->add_do_method(curve.ptr(),"remove_point",i);
undo_redo->add_undo_method(curve.ptr(),"add_point",curve->get_point_pos(i),curve->get_point_in(i),curve->get_point_out(i),i);
undo_redo->add_do_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->commit_action();
return true;
} else
pointunder=true;
}
}
if (mb.button_index==BUTTON_LEFT && i<(curve->get_point_count()-1)) {
Point2 p = xform.xform( curve->get_point_pos(i)+curve->get_point_out(i) );
if (gpoint.distance_to(p) < grab_treshold && (mode == MODE_EDIT || mode==MODE_EDIT_CURVE) ) {
action=ACTION_MOVING_OUT;
action_point=i;
moving_from=curve->get_point_out(i);
moving_screen_from=gpoint;
return true;
}
}
if (mb.button_index==BUTTON_LEFT && i>0) {
Point2 p = xform.xform( curve->get_point_pos(i)+curve->get_point_in(i) );
if (gpoint.distance_to(p) < grab_treshold && (mode == MODE_EDIT || mode==MODE_EDIT_CURVE)) {
action=ACTION_MOVING_IN;
action_point=i;
moving_from=curve->get_point_in(i);
moving_screen_from=gpoint;
return true;
}
}
if (pointunder)
return true;
}
}
// Test add point in empty space!
if ( mb.pressed && mb.button_index==BUTTON_LEFT && ((mb.mod.command && mode == MODE_EDIT) || mode == MODE_CREATE)) {
Ref<Curve2D> curve = node->get_curve();
undo_redo->create_action(TTR("Add Point to Curve"));
undo_redo->add_do_method(curve.ptr(),"add_point",cpoint);
undo_redo->add_undo_method(curve.ptr(),"remove_point",curve->get_point_count());
undo_redo->add_do_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->commit_action();
action=ACTION_MOVING_POINT;
action_point=curve->get_point_count()-1;
moving_from=curve->get_point_pos(action_point);
moving_screen_from=gpoint;
canvas_item_editor->get_viewport_control()->update();
return true;
}
if ( !mb.pressed && mb.button_index==BUTTON_LEFT && action!=ACTION_NONE) {
Ref<Curve2D> curve = node->get_curve();
Vector2 new_pos = moving_from + xform.affine_inverse().basis_xform(gpoint - moving_screen_from);
switch(action) {
case ACTION_MOVING_POINT: {
undo_redo->create_action(TTR("Move Point in Curve"));
undo_redo->add_do_method(curve.ptr(),"set_point_pos",action_point,cpoint);
undo_redo->add_undo_method(curve.ptr(),"set_point_pos",action_point,moving_from);
undo_redo->add_do_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->commit_action();
} break;
case ACTION_MOVING_IN: {
undo_redo->create_action(TTR("Move In-Control in Curve"));
undo_redo->add_do_method(curve.ptr(),"set_point_in",action_point,new_pos);
undo_redo->add_undo_method(curve.ptr(),"set_point_in",action_point,moving_from);
undo_redo->add_do_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->commit_action();
} break;
case ACTION_MOVING_OUT: {
undo_redo->create_action(TTR("Move Out-Control in Curve"));
undo_redo->add_do_method(curve.ptr(),"set_point_out",action_point,new_pos);
undo_redo->add_undo_method(curve.ptr(),"set_point_out",action_point,moving_from);
undo_redo->add_do_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->commit_action();
} break;
}
action=ACTION_NONE;
return true;
}
#if 0
switch(mode) {
case MODE_CREATE: {
if (mb.button_index==BUTTON_LEFT && mb.pressed) {
if (!wip_active) {
wip.clear();
wip.push_back( canvas_item_editor->snap_point(cpoint) );
wip_active=true;
edited_point_pos=canvas_item_editor->snap_point(cpoint);
canvas_item_editor->update();
edited_point=1;
return true;
} else {
if (wip.size()>1 && xform.xform(wip[0]).distance_to(gpoint)<grab_treshold) {
//wip closed
_wip_close();
return true;
} else {
wip.push_back( canvas_item_editor->snap_point(cpoint) );
edited_point=wip.size();
canvas_item_editor->update();
return true;
//add wip point
}
}
} else if (mb.button_index==BUTTON_RIGHT && mb.pressed && wip_active) {
_wip_close();
}
} break;
case MODE_EDIT: {
if (mb.button_index==BUTTON_LEFT) {
if (mb.pressed) {
if (mb.mod.control) {
if (poly.size() < 3) {
undo_redo->create_action(TTR("Edit Poly"));
undo_redo->add_undo_method(node,"set_polygon",poly);
poly.push_back(cpoint);
undo_redo->add_do_method(node,"set_polygon",poly);
undo_redo->add_do_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->commit_action();
return true;
}
//search edges
int closest_idx=-1;
Vector2 closest_pos;
real_t closest_dist=1e10;
for(int i=0;i<poly.size();i++) {
Vector2 points[2] ={ xform.xform(poly[i]),
xform.xform(poly[(i+1)%poly.size()]) };
Vector2 cp = Geometry::get_closest_point_to_segment_2d(gpoint,points);
if (cp.distance_squared_to(points[0])<CMP_EPSILON2 || cp.distance_squared_to(points[1])<CMP_EPSILON2)
continue; //not valid to reuse point
real_t d = cp.distance_to(gpoint);
if (d<closest_dist && d<grab_treshold) {
closest_dist=d;
closest_pos=cp;
closest_idx=i;
}
}
if (closest_idx>=0) {
pre_move_edit=poly;
poly.insert(closest_idx+1,canvas_item_editor->snap_point(xform.affine_inverse().xform(closest_pos)));
edited_point=closest_idx+1;
edited_point_pos=canvas_item_editor->snap_point(xform.affine_inverse().xform(closest_pos));
node->set_polygon(poly);
canvas_item_editor->update();
return true;
}
} else {
//look for points to move
int closest_idx=-1;
Vector2 closest_pos;
real_t closest_dist=1e10;
for(int i=0;i<poly.size();i++) {
Vector2 cp =xform.xform(poly[i]);
real_t d = cp.distance_to(gpoint);
if (d<closest_dist && d<grab_treshold) {
closest_dist=d;
closest_pos=cp;
closest_idx=i;
}
}
if (closest_idx>=0) {
pre_move_edit=poly;
edited_point=closest_idx;
edited_point_pos=xform.affine_inverse().xform(closest_pos);
canvas_item_editor->update();
return true;
}
}
} else {
if (edited_point!=-1) {
//apply
ERR_FAIL_INDEX_V(edited_point,poly.size(),false);
poly[edited_point]=edited_point_pos;
undo_redo->create_action(TTR("Edit Poly"));
undo_redo->add_do_method(node,"set_polygon",poly);
undo_redo->add_undo_method(node,"set_polygon",pre_move_edit);
undo_redo->add_do_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->commit_action();
edited_point=-1;
return true;
}
}
} if (mb.button_index==BUTTON_RIGHT && mb.pressed && edited_point==-1) {
int closest_idx=-1;
Vector2 closest_pos;
real_t closest_dist=1e10;
for(int i=0;i<poly.size();i++) {
Vector2 cp =xform.xform(poly[i]);
real_t d = cp.distance_to(gpoint);
if (d<closest_dist && d<grab_treshold) {
closest_dist=d;
closest_pos=cp;
closest_idx=i;
}
}
if (closest_idx>=0) {
undo_redo->create_action(TTR("Edit Poly (Remove Point)"));
undo_redo->add_undo_method(node,"set_polygon",poly);
poly.remove(closest_idx);
undo_redo->add_do_method(node,"set_polygon",poly);
undo_redo->add_do_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->commit_action();
return true;
}
}
} break;
}
#endif
} break;
case InputEvent::MOUSE_MOTION: {
const InputEventMouseMotion &mm=p_event.mouse_motion;
if ( action!=ACTION_NONE) {
Matrix32 xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
Vector2 gpoint = Point2(mm.x,mm.y);
Vector2 cpoint = !mm.mod.alt? canvas_item_editor->snap_point(xform.affine_inverse().xform(gpoint))
: node->get_global_transform().affine_inverse().xform( canvas_item_editor->snap_point(canvas_item_editor->get_canvas_transform().affine_inverse().xform(gpoint)) );
Ref<Curve2D> curve = node->get_curve();
Vector2 new_pos = moving_from + xform.affine_inverse().basis_xform(gpoint - moving_screen_from);
switch(action) {
case ACTION_MOVING_POINT: {
curve->set_point_pos(action_point,cpoint);
} break;
case ACTION_MOVING_IN: {
curve->set_point_in(action_point,new_pos);
} break;
case ACTION_MOVING_OUT: {
curve->set_point_out(action_point,new_pos);
} break;
}
canvas_item_editor->get_viewport_control()->update();
return true;
}
#if 0
if (edited_point!=-1 && (wip_active || mm.button_mask&BUTTON_MASK_LEFT)) {
Matrix32 xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
Vector2 gpoint = Point2(mm.x,mm.y);
edited_point_pos = canvas_item_editor->snap_point(xform.affine_inverse().xform(gpoint));
canvas_item_editor->update();
}
#endif
} break;
}
return false;
}
void Path2DEditor::_canvas_draw() {
if (!node)
return ;
if (!node->is_visible())
return;
if (!node->get_curve().is_valid())
return ;
Matrix32 xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
Ref<Texture> handle= get_icon("EditorHandle","EditorIcons");
Size2 handle_size = handle->get_size();
Ref<Curve2D> curve = node->get_curve();
int len = curve->get_point_count();
Control *vpc = canvas_item_editor->get_viewport_control();
for(int i=0;i<len;i++) {
Vector2 point = xform.xform(curve->get_point_pos(i));
vpc->draw_texture_rect(handle,Rect2(point-handle_size*0.5,handle_size),false,Color(1,1,1,1));
if (i<len-1) {
Vector2 pointout = xform.xform(curve->get_point_pos(i)+curve->get_point_out(i));
vpc->draw_line(point,pointout,Color(0.5,0.5,1.0,0.8),1.0);
vpc->draw_texture_rect(handle, Rect2(pointout-handle_size*0.5,handle_size),false,Color(1,0.5,1,0.3));
}
if (i>0) {
Vector2 pointin = xform.xform(curve->get_point_pos(i)+curve->get_point_in(i));
vpc->draw_line(point,pointin,Color(0.5,0.5,1.0,0.8),1.0);
vpc->draw_texture_rect(handle, Rect2(pointin-handle_size*0.5,handle_size),false,Color(1,0.5,1,0.3));
}
}
}
void Path2DEditor::_node_visibility_changed() {
if (!node)
return;
canvas_item_editor->get_viewport_control()->update();
}
void Path2DEditor::edit(Node *p_path2d) {
if (!canvas_item_editor) {
canvas_item_editor=CanvasItemEditor::get_singleton();
}
if (p_path2d) {
node=p_path2d->cast_to<Path2D>();
if (!canvas_item_editor->get_viewport_control()->is_connected("draw",this,"_canvas_draw"))
canvas_item_editor->get_viewport_control()->connect("draw",this,"_canvas_draw");
if (!node->is_connected("visibility_changed", this, "_node_visibility_changed"))
node->connect("visibility_changed", this, "_node_visibility_changed");
} else {
if (canvas_item_editor->get_viewport_control()->is_connected("draw",this,"_canvas_draw"))
canvas_item_editor->get_viewport_control()->disconnect("draw",this,"_canvas_draw");
// node may have been deleted at this point
if (node && node->is_connected("visibility_changed", this, "_node_visibility_changed"))
node->disconnect("visibility_changed", this, "_node_visibility_changed");
node=NULL;
}
}
void Path2DEditor::_bind_methods() {
//ClassDB::bind_method(_MD("_menu_option"),&Path2DEditor::_menu_option);
ClassDB::bind_method(_MD("_canvas_draw"),&Path2DEditor::_canvas_draw);
ClassDB::bind_method(_MD("_node_visibility_changed"),&Path2DEditor::_node_visibility_changed);
ClassDB::bind_method(_MD("_mode_selected"),&Path2DEditor::_mode_selected);
}
void Path2DEditor::_mode_selected(int p_mode) {
if (p_mode==MODE_CREATE) {
curve_create->set_pressed(true);
curve_edit->set_pressed(false);
curve_edit_curve->set_pressed(false);
curve_del->set_pressed(false);
} else if (p_mode==MODE_EDIT) {
curve_create->set_pressed(false);
curve_edit->set_pressed(true);
curve_edit_curve->set_pressed(false);
curve_del->set_pressed(false);
} else if (p_mode==MODE_EDIT_CURVE) {
curve_create->set_pressed(false);
curve_edit->set_pressed(false);
curve_edit_curve->set_pressed(true);
curve_del->set_pressed(false);
} else if (p_mode==MODE_DELETE) {
curve_create->set_pressed(false);
curve_edit->set_pressed(false);
curve_edit_curve->set_pressed(false);
curve_del->set_pressed(true);
} else if (p_mode==ACTION_CLOSE) {
//?
if (!node->get_curve().is_valid())
return ;
if (node->get_curve()->get_point_count()<3)
return;
Vector2 begin = node->get_curve()->get_point_pos(0);
Vector2 end = node->get_curve()->get_point_pos( node->get_curve()->get_point_count() -1 );
if (begin.distance_to(end)<CMP_EPSILON)
return;
undo_redo->create_action(TTR("Remove Point from Curve"));
undo_redo->add_do_method(node->get_curve().ptr(),"add_point",begin);
undo_redo->add_undo_method(node->get_curve().ptr(),"remove_point",node->get_curve()->get_point_count());
undo_redo->add_do_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(),"update");
undo_redo->commit_action();
return;
}
mode=Mode(p_mode);
}
Path2DEditor::Path2DEditor(EditorNode *p_editor) {
canvas_item_editor=NULL;
editor=p_editor;
undo_redo = editor->get_undo_redo();
mode=MODE_EDIT;
action=ACTION_NONE;
#if 0
options = memnew( MenuButton );
add_child(options);
options->set_area_as_parent_rect();
options->set_text("Polygon");
//options->get_popup()->add_item("Parse BBCode",PARSE_BBCODE);
options->get_popup()->connect("item_pressed", this,"_menu_option");
#endif
base_hb = memnew( HBoxContainer );
CanvasItemEditor::get_singleton()->add_control_to_menu_panel(base_hb);
sep = memnew( VSeparator);
base_hb->add_child(sep);
curve_edit = memnew( ToolButton );
curve_edit->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("CurveEdit","EditorIcons"));
curve_edit->set_toggle_mode(true);
curve_edit->set_focus_mode(Control::FOCUS_NONE);
curve_edit->set_tooltip(TTR("Select Points")+"\n"+TTR("Shift+Drag: Select Control Points")+"\n"+keycode_get_string(KEY_MASK_CMD)+TTR("Click: Add Point")+"\n"+TTR("Right Click: Delete Point"));
curve_edit->connect("pressed",this,"_mode_selected",varray(MODE_EDIT));
base_hb->add_child(curve_edit);
curve_edit_curve = memnew( ToolButton );
curve_edit_curve->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("CurveCurve","EditorIcons"));
curve_edit_curve->set_toggle_mode(true);
curve_edit_curve->set_focus_mode(Control::FOCUS_NONE);
curve_edit_curve->set_tooltip(TTR("Select Control Points (Shift+Drag)"));
curve_edit_curve->connect("pressed",this,"_mode_selected",varray(MODE_EDIT_CURVE));
base_hb->add_child(curve_edit_curve);
curve_create = memnew( ToolButton );
curve_create->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("CurveCreate","EditorIcons"));
curve_create->set_toggle_mode(true);
curve_create->set_focus_mode(Control::FOCUS_NONE);
curve_create->set_tooltip(TTR("Add Point (in empty space)")+"\n"+TTR("Split Segment (in curve)"));
curve_create->connect("pressed",this,"_mode_selected",varray(MODE_CREATE));
base_hb->add_child(curve_create);
curve_del = memnew( ToolButton );
curve_del->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("CurveDelete","EditorIcons"));
curve_del->set_toggle_mode(true);
curve_del->set_focus_mode(Control::FOCUS_NONE);
curve_del->set_tooltip(TTR("Delete Point"));
curve_del->connect("pressed",this,"_mode_selected",varray(MODE_DELETE));
base_hb->add_child(curve_del);
curve_close = memnew( ToolButton );
curve_close->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("CurveClose","EditorIcons"));
curve_close->set_focus_mode(Control::FOCUS_NONE);
curve_close->set_tooltip(TTR("Close Curve"));
curve_close->connect("pressed",this,"_mode_selected",varray(ACTION_CLOSE));
base_hb->add_child(curve_close);
base_hb->hide();
curve_edit->set_pressed(true);
}
void Path2DEditorPlugin::edit(Object *p_object) {
path2d_editor->edit(p_object->cast_to<Node>());
}
bool Path2DEditorPlugin::handles(Object *p_object) const {
return p_object->is_class("Path2D");
}
void Path2DEditorPlugin::make_visible(bool p_visible) {
if (p_visible) {
path2d_editor->show();
path2d_editor->base_hb->show();
} else {
path2d_editor->hide();
path2d_editor->base_hb->hide();
path2d_editor->edit(NULL);
}
}
Path2DEditorPlugin::Path2DEditorPlugin(EditorNode *p_node) {
editor=p_node;
path2d_editor = memnew( Path2DEditor(p_node) );
CanvasItemEditor::get_singleton()->add_control_to_menu_panel(path2d_editor);
path2d_editor->hide();
}
Path2DEditorPlugin::~Path2DEditorPlugin()
{
}
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