Add SpriteRegionEditor and update Polygon2DUVEditor

Both with snap and grid support

.gitattributes

@@ -0,0 +1,4 @@
+*.cpp eol=lf
+*.h eol=lf
+*.py eol=lf
+*.hpp eol=lf

scene/2d/sprite.cpp

@@ -189,6 +189,7 @@ void Sprite::set_region_rect(const Rect2& p_region_rect) {
 	if (region && changed) {
 		update();
 		item_rect_changed();
+		_change_notify("region_rect");
 	}
 }
 

tools/editor/editor_node.cpp

@@ -58,6 +58,7 @@
 
 // plugins
 #include "plugins/sprite_frames_editor_plugin.h"
+#include "plugins/sprite_region_editor_plugin.h"
 #include "plugins/canvas_item_editor_plugin.h"
 #include "plugins/spatial_editor_plugin.h"
 #include "plugins/sample_editor_plugin.h"
@@ -5471,6 +5472,7 @@ EditorNode::EditorNode() {
 	add_editor_plugin( memnew( TileSetEditorPlugin(this) ) );
 	add_editor_plugin( memnew( TileMapEditorPlugin(this) ) );
 	add_editor_plugin( memnew( SpriteFramesEditorPlugin(this) ) );
+	add_editor_plugin( memnew( SpriteRegionEditorPlugin(this) ) );
 	add_editor_plugin( memnew( Particles2DEditorPlugin(this) ) );
 	add_editor_plugin( memnew( Path2DEditorPlugin(this) ) );
 	add_editor_plugin( memnew( PathEditorPlugin(this) ) );

tools/editor/plugins/polygon_2d_editor_plugin.cpp

@@ -50,6 +50,9 @@ void Polygon2DEditor::_notification(int p_what) {
 			uv_button[UV_MODE_ROTATE]->set_icon(get_icon("ToolRotate","EditorIcons"));
 			uv_button[UV_MODE_SCALE]->set_icon(get_icon("ToolScale","EditorIcons"));
 
+			b_snap_grid->set_icon( get_icon("Grid", "EditorIcons"));
+			b_snap_enable->set_icon( get_icon("Snap", "EditorIcons"));
+			uv_icon_zoom->set_texture( get_icon("Zoom", "EditorIcons"));
 
 		} break;
 		case NOTIFICATION_FIXED_PROCESS: {
@@ -158,6 +161,41 @@ void Polygon2DEditor::_menu_option(int p_option) {
 	}
 }
 
+void Polygon2DEditor::_set_use_snap(bool p_use)
+{
+	use_snap=p_use;
+}
+
+void Polygon2DEditor::_set_show_grid(bool p_show)
+{
+	snap_show_grid=p_show;
+	uv_edit_draw->update();
+}
+
+void Polygon2DEditor::_set_snap_off_x(float p_val)
+{
+	snap_offset.x=p_val;
+	uv_edit_draw->update();
+}
+
+void Polygon2DEditor::_set_snap_off_y(float p_val)
+{
+	snap_offset.y=p_val;
+	uv_edit_draw->update();
+}
+
+void Polygon2DEditor::_set_snap_step_x(float p_val)
+{
+	snap_step.x=p_val;
+	uv_edit_draw->update();
+}
+
+void Polygon2DEditor::_set_snap_step_y(float p_val)
+{
+	snap_step.y=p_val;
+	uv_edit_draw->update();
+}
+
 void Polygon2DEditor::_wip_close() {
 
 	undo_redo->create_action("Create Poly");
@@ -494,7 +532,7 @@ void Polygon2DEditor::_uv_input(const InputEvent& p_input) {
 
 						Vector2 tuv=mtx.xform(uv_prev[i]);
 						if (tuv.distance_to(Vector2(mb.x,mb.y))<8) {
-
+							uv_drag_from=tuv;
 							uv_drag_index=i;
 						}
 					}
@@ -545,7 +583,7 @@ void Polygon2DEditor::_uv_input(const InputEvent& p_input) {
 
 		} else if (uv_drag) {
 
-			Vector2 uv_drag_to(mm.x,mm.y);
+			Vector2 uv_drag_to=snap_point(Vector2(mm.x,mm.y));
 			Vector2 drag = mtx.affine_inverse().xform(uv_drag_to) - mtx.affine_inverse().xform(uv_drag_from);
 
 
@@ -649,6 +687,33 @@ void Polygon2DEditor::_uv_draw() {
 	uv_edit_draw->draw_texture(base_tex,Point2());
 	VS::get_singleton()->canvas_item_add_set_transform(uv_edit_draw->get_canvas_item(),Matrix32());
 
+	if (snap_show_grid) {
+		Size2 s = uv_edit_draw->get_size();
+		int last_cell;
+
+		if (snap_step.x!=0) {
+			for(int i=0;i<s.width;i++) {
+				int cell = Math::fast_ftoi(Math::floor((mtx.affine_inverse().xform(Vector2(i,0)).x-snap_offset.x)/snap_step.x));
+				if (i==0)
+					last_cell=cell;
+				if (last_cell!=cell)
+					uv_edit_draw->draw_line(Point2(i,0),Point2(i,s.height),Color(0.3,0.7,1,0.3));
+				last_cell=cell;
+			}
+		}
+
+		if (snap_step.y!=0) {
+			for(int i=0;i<s.height;i++) {
+				int cell = Math::fast_ftoi(Math::floor((mtx.affine_inverse().xform(Vector2(0,i)).y-snap_offset.y)/snap_step.y));
+				if (i==0)
+					last_cell=cell;
+				if (last_cell!=cell)
+					uv_edit_draw->draw_line(Point2(0,i),Point2(s.width,i),Color(0.3,0.7,1,0.3));
+				last_cell=cell;
+			}
+		}
+	}
+
 	DVector<Vector2> uvs = node->get_uv();
 	Ref<Texture> handle = get_icon("EditorHandle","EditorIcons");
 
@@ -720,8 +785,27 @@ void Polygon2DEditor::_bind_methods() {
 	ObjectTypeDB::bind_method(_MD("_uv_input"),&Polygon2DEditor::_uv_input);
 	ObjectTypeDB::bind_method(_MD("_uv_scroll_changed"),&Polygon2DEditor::_uv_scroll_changed);
 	ObjectTypeDB::bind_method(_MD("_node_removed"),&Polygon2DEditor::_node_removed);
+	ObjectTypeDB::bind_method(_MD("_set_use_snap"),&Polygon2DEditor::_set_use_snap);
+	ObjectTypeDB::bind_method(_MD("_set_show_grid"),&Polygon2DEditor::_set_show_grid);
+	ObjectTypeDB::bind_method(_MD("_set_snap_off_x"),&Polygon2DEditor::_set_snap_off_x);
+	ObjectTypeDB::bind_method(_MD("_set_snap_off_y"),&Polygon2DEditor::_set_snap_off_y);
+	ObjectTypeDB::bind_method(_MD("_set_snap_step_x"),&Polygon2DEditor::_set_snap_step_x);
+	ObjectTypeDB::bind_method(_MD("_set_snap_step_y"),&Polygon2DEditor::_set_snap_step_y);
+
 
+}
 
+inline float _snap_scalar(float p_offset, float p_step, float p_target) {
+	return p_step != 0 ? Math::stepify(p_target - p_offset, p_step) + p_offset : p_target;
+}
+
+Vector2 Polygon2DEditor::snap_point(Vector2 p_target) const {
+	if (use_snap) {
+		p_target.x = _snap_scalar(snap_offset.x*uv_draw_zoom-uv_draw_ofs.x, snap_step.x*uv_draw_zoom, p_target.x);
+		p_target.y = _snap_scalar(snap_offset.y*uv_draw_zoom-uv_draw_ofs.y, snap_step.y*uv_draw_zoom, p_target.y);
+	}
+
+	return p_target;
 }
 
 Polygon2DEditor::Polygon2DEditor(EditorNode *p_editor) {
@@ -731,6 +815,10 @@ Polygon2DEditor::Polygon2DEditor(EditorNode *p_editor) {
 	editor=p_editor;
 	undo_redo = editor->get_undo_redo();
 
+	snap_step=Vector2(10,10);
+	use_snap=false;
+	snap_show_grid=false;
+
 	add_child( memnew( VSeparator ));
 	button_create = memnew( ToolButton );
 	add_child(button_create);
@@ -800,9 +888,72 @@ Polygon2DEditor::Polygon2DEditor(EditorNode *p_editor) {
 	uv_menu->get_popup()->add_separator();
 	uv_menu->get_popup()->add_item("Clear UV",UVEDIT_UV_CLEAR);
 	uv_menu->get_popup()->connect("item_pressed",this,"_menu_option");
+
+	uv_mode_hb->add_child( memnew( VSeparator ));
+
+	b_snap_enable = memnew( ToolButton );
+	uv_mode_hb->add_child(b_snap_enable);
+	b_snap_enable->set_text("Snap");
+	b_snap_enable->set_focus_mode(FOCUS_NONE);
+	b_snap_enable->set_toggle_mode(true);
+	b_snap_enable->set_pressed(use_snap);
+	b_snap_enable->set_tooltip("Enable Snap");
+	b_snap_enable->connect("toggled",this,"_set_use_snap");
+
+	b_snap_grid = memnew( ToolButton );
+	uv_mode_hb->add_child(b_snap_grid);
+	b_snap_grid->set_text("Grid");
+	b_snap_grid->set_focus_mode(FOCUS_NONE);
+	b_snap_grid->set_toggle_mode(true);
+	b_snap_grid->set_pressed(snap_show_grid);
+	b_snap_grid->set_tooltip("Show Grid");
+	b_snap_grid->connect("toggled",this,"_set_show_grid");
+
+	uv_mode_hb->add_child( memnew( VSeparator ));
+	uv_mode_hb->add_child( memnew( Label("Grid Offset:") ) );
+
+	SpinBox *sb_off_x = memnew( SpinBox );
+	sb_off_x->set_min(-256);
+	sb_off_x->set_max(256);
+	sb_off_x->set_step(1);
+	sb_off_x->set_val(snap_offset.x);
+	sb_off_x->set_suffix("px");
+	sb_off_x->connect("value_changed", this, "_set_snap_off_x");
+	uv_mode_hb->add_child(sb_off_x);
+
+	SpinBox *sb_off_y = memnew( SpinBox );
+	sb_off_y->set_min(-256);
+	sb_off_y->set_max(256);
+	sb_off_y->set_step(1);
+	sb_off_y->set_val(snap_offset.y);
+	sb_off_y->set_suffix("px");
+	sb_off_y->connect("value_changed", this, "_set_snap_off_y");
+	uv_mode_hb->add_child(sb_off_y);
+
+	uv_mode_hb->add_child( memnew( VSeparator ));
+	uv_mode_hb->add_child( memnew( Label("Grid Step:") ) );
+
+	SpinBox *sb_step_x = memnew( SpinBox );
+	sb_step_x->set_min(-256);
+	sb_step_x->set_max(256);
+	sb_step_x->set_step(1);
+	sb_step_x->set_val(snap_step.x);
+	sb_step_x->set_suffix("px");
+	sb_step_x->connect("value_changed", this, "_set_snap_step_x");
+	uv_mode_hb->add_child(sb_step_x);
+
+	SpinBox *sb_step_y = memnew( SpinBox );
+	sb_step_y->set_min(-256);
+	sb_step_y->set_max(256);
+	sb_step_y->set_step(1);
+	sb_step_y->set_val(snap_step.y);
+	sb_step_y->set_suffix("px");
+	sb_step_y->connect("value_changed", this, "_set_snap_step_y");
+	uv_mode_hb->add_child(sb_step_y);
+
 	uv_mode_hb->add_child( memnew( VSeparator ));
 	uv_icon_zoom = memnew( TextureFrame );
-	uv_main_hb->add_child( uv_icon_zoom );
+	uv_mode_hb->add_child( uv_icon_zoom );
 	uv_zoom = memnew( HSlider );
 	uv_zoom->set_min(0.01);
 	uv_zoom->set_max(4);

tools/editor/plugins/polygon_2d_editor_plugin.h

@@ -41,6 +41,8 @@ class Polygon2DEditor : public HBoxContainer {
 	UVMode uv_mode;
 	AcceptDialog *uv_edit;
 	ToolButton *uv_button[4];
+	ToolButton *b_snap_enable;
+	ToolButton *b_snap_grid;
 	Control *uv_edit_draw;
 	HSlider *uv_zoom;
 	SpinBox *uv_zoom_value;
@@ -78,6 +80,11 @@ class Polygon2DEditor : public HBoxContainer {
 	Vector<Vector2> wip;
 	bool wip_active;
 
+	bool use_snap;
+	bool snap_show_grid;
+	Vector2 snap_offset;
+	Vector2 snap_step;
+
 	void _uv_scroll_changed(float);
 	void _uv_input(const InputEvent& p_input);
 	void _uv_draw();
@@ -86,10 +93,20 @@ class Polygon2DEditor : public HBoxContainer {
 	void _canvas_draw();
 	void _menu_option(int p_option);
 
+	void _set_use_snap(bool p_use);
+	void _set_show_grid(bool p_show);
+	void _set_snap_off_x(float p_val);
+	void _set_snap_off_y(float p_val);
+	void _set_snap_step_x(float p_val);
+	void _set_snap_step_y(float p_val);
+
 protected:
 	void _notification(int p_what);
 	void _node_removed(Node *p_node);
 	static void _bind_methods();
+
+	Vector2 snap_point(Vector2 p_target) const;
+
 public:
 
 	bool forward_input_event(const InputEvent& p_event);

tools/editor/plugins/sprite_region_editor_plugin.cpp

@@ -0,0 +1,565 @@
+/*************************************************************************/
+/*  sprite_region_editor_plugin.cpp                                      */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2015 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Author: Mariano Suligoy                                               */
+/*                                                                       */
+/* 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 "sprite_region_editor_plugin.h"
+#include "scene/gui/check_box.h"
+#include "os/input.h"
+#include "os/keyboard.h"
+
+void SpriteRegionEditor::_region_draw()
+{
+	Ref<Texture> base_tex = node->get_texture();
+	if (base_tex.is_null())
+		return;
+
+	Matrix32 mtx;
+	mtx.elements[2]=-draw_ofs;
+	mtx.scale_basis(Vector2(draw_zoom,draw_zoom));
+
+	VS::get_singleton()->canvas_item_set_clip(edit_draw->get_canvas_item(),true);
+	VS::get_singleton()->canvas_item_add_set_transform(edit_draw->get_canvas_item(),mtx);
+	edit_draw->draw_texture(base_tex,Point2());
+	VS::get_singleton()->canvas_item_add_set_transform(edit_draw->get_canvas_item(),Matrix32());
+
+	if (snap_show_grid) {
+		Size2 s = edit_draw->get_size();
+		int last_cell;
+
+		if (snap_step.x!=0) {
+			for(int i=0;i<s.width;i++) {
+				int cell = Math::fast_ftoi(Math::floor((mtx.affine_inverse().xform(Vector2(i,0)).x-snap_offset.x)/snap_step.x));
+				if (i==0)
+					last_cell=cell;
+				if (last_cell!=cell)
+					edit_draw->draw_line(Point2(i,0),Point2(i,s.height),Color(0.3,0.7,1,0.3));
+				last_cell=cell;
+			}
+		}
+
+		if (snap_step.y!=0) {
+			for(int i=0;i<s.height;i++) {
+				int cell = Math::fast_ftoi(Math::floor((mtx.affine_inverse().xform(Vector2(0,i)).y-snap_offset.y)/snap_step.y));
+				if (i==0)
+					last_cell=cell;
+				if (last_cell!=cell)
+					edit_draw->draw_line(Point2(0,i),Point2(s.width,i),Color(0.3,0.7,1,0.3));
+				last_cell=cell;
+			}
+		}
+	}
+
+	Ref<Texture> select_handle = get_icon("EditorHandle","EditorIcons");
+
+	Rect2 scroll_rect(Point2(),mtx.basis_xform(base_tex->get_size()));
+	scroll_rect.expand_to(mtx.basis_xform(edit_draw->get_size()));
+
+	Vector2 endpoints[4]={
+		mtx.basis_xform(rect.pos),
+		mtx.basis_xform(rect.pos+Vector2(rect.size.x,0)),
+		mtx.basis_xform(rect.pos+rect.size),
+		mtx.basis_xform(rect.pos+Vector2(0,rect.size.y))
+	};
+
+	for(int i=0;i<4;i++) {
+
+		int prev = (i+3)%4;
+		int next = (i+1)%4;
+
+		Vector2 ofs = ((endpoints[i] - endpoints[prev]).normalized() + ((endpoints[i] - endpoints[next]).normalized())).normalized();
+		ofs*=1.4144*(select_handle->get_size().width/2);
+
+		edit_draw->draw_line(endpoints[i]-draw_ofs, endpoints[next]-draw_ofs, Color(0.9,0.5,0.5), 2);
+
+		edit_draw->draw_texture(select_handle,(endpoints[i]+ofs-(select_handle->get_size()/2)).floor()-draw_ofs);
+
+		ofs = (endpoints[next]-endpoints[i])/2;
+		ofs += (endpoints[next]-endpoints[i]).tangent().normalized()*(select_handle->get_size().width/2);
+
+		edit_draw->draw_texture(select_handle,(endpoints[i]+ofs-(select_handle->get_size()/2)).floor()-draw_ofs);
+
+		scroll_rect.expand_to(endpoints[i]);
+	}
+
+	scroll_rect=scroll_rect.grow(200);
+	updating_scroll=true;
+	hscroll->set_min(scroll_rect.pos.x);
+	hscroll->set_max(scroll_rect.pos.x+scroll_rect.size.x);
+	hscroll->set_page(edit_draw->get_size().x);
+	hscroll->set_val(draw_ofs.x);
+	hscroll->set_step(0.001);
+
+	vscroll->set_min(scroll_rect.pos.y);
+	vscroll->set_max(scroll_rect.pos.y+scroll_rect.size.y);
+	vscroll->set_page(edit_draw->get_size().y);
+	vscroll->set_val(draw_ofs.y);
+	vscroll->set_step(0.001);
+	updating_scroll=false;
+}
+
+void SpriteRegionEditor::_region_input(const InputEvent& p_input)
+{
+	Matrix32 mtx;
+	mtx.elements[2]=-draw_ofs;
+	mtx.scale_basis(Vector2(draw_zoom,draw_zoom));
+
+	Vector2 endpoints[8]={
+		mtx.xform(rect.pos)+Vector2(-4,-4),
+		mtx.xform(rect.pos+Vector2(rect.size.x/2,0))+Vector2(0,-4),
+		mtx.xform(rect.pos+Vector2(rect.size.x,0))+Vector2(4,-4),
+		mtx.xform(rect.pos+Vector2(rect.size.x,rect.size.y/2))+Vector2(4,0),
+		mtx.xform(rect.pos+rect.size)+Vector2(4,4),
+		mtx.xform(rect.pos+Vector2(rect.size.x/2,rect.size.y))+Vector2(0,4),
+		mtx.xform(rect.pos+Vector2(0,rect.size.y))+Vector2(-4,4),
+		mtx.xform(rect.pos+Vector2(0,rect.size.y/2))+Vector2(-4,0)
+	};
+
+	if (p_input.type==InputEvent::MOUSE_BUTTON) {
+
+
+		const InputEventMouseButton &mb=p_input.mouse_button;
+
+		if (mb.button_index==BUTTON_LEFT) {
+
+
+			if (mb.pressed) {
+
+				drag_from=mtx.affine_inverse().xform(Vector2(mb.x,mb.y));
+				drag_from=snap_point(drag_from);
+				drag=true;
+				rect_prev=node->get_region_rect();
+
+				drag_index=-1;
+				for(int i=0;i<8;i++) {
+
+					Vector2 tuv=endpoints[i];
+					if (tuv.distance_to(Vector2(mb.x,mb.y))<8) {
+						drag_index=i;
+						creating = false;
+					}
+				}
+
+				if (drag_index==-1) {
+					creating = true;
+					rect = Rect2(drag_from,Size2());
+				}
+
+			} else if (drag) {
+
+				undo_redo->create_action("Set region_rect");
+				undo_redo->add_do_method(node,"set_region_rect",node->get_region_rect());
+				undo_redo->add_undo_method(node,"set_region_rect",rect_prev);
+				undo_redo->add_do_method(edit_draw,"update");
+				undo_redo->add_undo_method(edit_draw,"update");
+				undo_redo->commit_action();
+
+				drag=false;
+			}
+
+		} else if (mb.button_index==BUTTON_RIGHT && mb.pressed) {
+
+			if (drag) {
+				drag=false;
+				node->set_region_rect(rect_prev);
+				rect=rect_prev;
+				edit_draw->update();
+			}
+
+		} else if (mb.button_index==BUTTON_WHEEL_UP && mb.pressed) {
+
+			zoom->set_val( zoom->get_val()/0.9 );
+		} else if (mb.button_index==BUTTON_WHEEL_DOWN && mb.pressed) {
+
+			zoom->set_val( zoom->get_val()*0.9);
+		}
+
+	} else if (p_input.type==InputEvent::MOUSE_MOTION) {
+
+		const InputEventMouseMotion &mm=p_input.mouse_motion;
+
+		if (mm.button_mask&BUTTON_MASK_MIDDLE || Input::get_singleton()->is_key_pressed(KEY_SPACE)) {
+
+			Vector2 draged(mm.relative_x,mm.relative_y);
+			hscroll->set_val( hscroll->get_val()-draged.x );
+			vscroll->set_val( vscroll->get_val()-draged.y );
+
+		} else if (drag) {
+
+			Vector2 new_pos = mtx.affine_inverse().xform(Vector2(mm.x,mm.y));
+			new_pos = snap_point(new_pos);
+
+			if (creating) {
+				rect = Rect2(drag_from,Size2());
+				rect.expand_to(new_pos);
+				node->set_region_rect(rect);
+				edit_draw->update();
+				return;
+			}
+
+			switch(drag_index) {
+			case 0: {
+				Vector2 p=rect_prev.pos+rect_prev.size;
+				rect = Rect2(p,Size2());
+				rect.expand_to(new_pos);
+				node->set_region_rect(rect);
+			} break;
+			case 1: {
+				Vector2 p=rect_prev.pos+Vector2(0,rect_prev.size.y);
+				rect = Rect2(p,Size2(rect_prev.size.x,0));
+				rect.expand_to(new_pos);
+				node->set_region_rect(rect);
+			} break;
+			case 2: {
+				Vector2 p=rect_prev.pos+Vector2(0,rect_prev.size.y);
+				rect = Rect2(p,Size2());
+				rect.expand_to(new_pos);
+				node->set_region_rect(rect);
+			} break;
+			case 3: {
+				Vector2 p=rect_prev.pos;
+				rect = Rect2(p,Size2(0,rect_prev.size.y));
+				rect.expand_to(new_pos);
+				node->set_region_rect(rect);
+			} break;
+			case 4: {
+				Vector2 p=rect_prev.pos;
+				rect = Rect2(p,Size2());
+				rect.expand_to(new_pos);
+				node->set_region_rect(rect);
+			} break;
+			case 5: {
+				Vector2 p=rect_prev.pos;
+				rect = Rect2(p,Size2(rect_prev.size.x,0));
+				rect.expand_to(new_pos);
+				node->set_region_rect(rect);
+			} break;
+			case 6: {
+				Vector2 p=rect_prev.pos+Vector2(rect_prev.size.x,0);
+				rect = Rect2(p,Size2());
+				rect.expand_to(new_pos);
+				node->set_region_rect(rect);
+			} break;
+			case 7: {
+				Vector2 p=rect_prev.pos+Vector2(rect_prev.size.x,0);
+				rect = Rect2(p,Size2(0,rect_prev.size.y));
+				rect.expand_to(new_pos);
+				node->set_region_rect(rect);
+			} break;
+
+			}
+			edit_draw->update();
+		}
+
+	}
+}
+
+void SpriteRegionEditor::_scroll_changed(float)
+{
+	if (updating_scroll)
+		return;
+
+	draw_ofs.x=hscroll->get_val();
+	draw_ofs.y=vscroll->get_val();
+	draw_zoom=zoom->get_val();
+	print_line("_scroll_changed");
+	edit_draw->update();
+}
+
+void SpriteRegionEditor::_set_use_snap(bool p_use)
+{
+	use_snap=p_use;
+}
+
+void SpriteRegionEditor::_set_show_grid(bool p_show)
+{
+	snap_show_grid=p_show;
+	edit_draw->update();
+}
+
+void SpriteRegionEditor::_set_snap_off_x(float p_val)
+{
+	snap_offset.x=p_val;
+	edit_draw->update();
+}
+
+void SpriteRegionEditor::_set_snap_off_y(float p_val)
+{
+	snap_offset.y=p_val;
+	edit_draw->update();
+}
+
+void SpriteRegionEditor::_set_snap_step_x(float p_val)
+{
+	snap_step.x=p_val;
+	edit_draw->update();
+}
+
+void SpriteRegionEditor::_set_snap_step_y(float p_val)
+{
+	snap_step.y=p_val;
+	edit_draw->update();
+}
+
+void SpriteRegionEditor::_notification(int p_what)
+{
+	switch(p_what) {
+
+		case NOTIFICATION_READY: {
+			edit_node->set_icon( get_icon("RegionEdit","EditorIcons"));
+			b_snap_grid->set_icon( get_icon("Grid", "EditorIcons"));
+			b_snap_enable->set_icon( get_icon("Snap", "EditorIcons"));
+			icon_zoom->set_texture( get_icon("Zoom", "EditorIcons"));
+		} break;
+	}
+}
+
+void SpriteRegionEditor::_node_removed(Node *p_node)
+{
+	if(p_node==node) {
+		node=NULL;
+		hide();
+	}
+}
+
+void SpriteRegionEditor::_bind_methods()
+{
+	ObjectTypeDB::bind_method(_MD("_edit_node"),&SpriteRegionEditor::_edit_node);
+	ObjectTypeDB::bind_method(_MD("_region_draw"),&SpriteRegionEditor::_region_draw);
+	ObjectTypeDB::bind_method(_MD("_region_input"),&SpriteRegionEditor::_region_input);
+	ObjectTypeDB::bind_method(_MD("_scroll_changed"),&SpriteRegionEditor::_scroll_changed);
+	ObjectTypeDB::bind_method(_MD("_node_removed"),&SpriteRegionEditor::_node_removed);
+	ObjectTypeDB::bind_method(_MD("_set_use_snap"),&SpriteRegionEditor::_set_use_snap);
+	ObjectTypeDB::bind_method(_MD("_set_show_grid"),&SpriteRegionEditor::_set_show_grid);
+	ObjectTypeDB::bind_method(_MD("_set_snap_off_x"),&SpriteRegionEditor::_set_snap_off_x);
+	ObjectTypeDB::bind_method(_MD("_set_snap_off_y"),&SpriteRegionEditor::_set_snap_off_y);
+	ObjectTypeDB::bind_method(_MD("_set_snap_step_x"),&SpriteRegionEditor::_set_snap_step_x);
+	ObjectTypeDB::bind_method(_MD("_set_snap_step_y"),&SpriteRegionEditor::_set_snap_step_y);
+}
+
+void SpriteRegionEditor::edit(Node *p_sprite)
+{
+	if (p_sprite) {
+		node=p_sprite->cast_to<Sprite>();
+		node->connect("exit_tree",this,"_node_removed",varray(),CONNECT_ONESHOT);
+	} else {
+		if (node)
+			node->disconnect("exit_tree",this,"_node_removed");
+		node=NULL;
+	}
+
+}
+void SpriteRegionEditor::_edit_node()
+{
+	if (node->get_texture().is_null()) {
+
+		error->set_text("No texture in this sprite.\nSet a texture to be able to edit Region.");
+		error->popup_centered_minsize();
+		return;
+	}
+
+	rect=node->get_region_rect();
+	dlg_editor->popup_centered_ratio(0.85);
+}
+
+inline float _snap_scalar(float p_offset, float p_step, float p_target) {
+	return p_step != 0 ? Math::stepify(p_target - p_offset, p_step) + p_offset : p_target;
+}
+
+Vector2 SpriteRegionEditor::snap_point(Vector2 p_target) const {
+	if (use_snap) {
+		p_target.x = _snap_scalar(snap_offset.x, snap_step.x, p_target.x);
+		p_target.y = _snap_scalar(snap_offset.y, snap_step.y, p_target.y);
+	}
+	p_target = p_target.snapped(Size2(1, 1));
+
+	return p_target;
+}
+
+SpriteRegionEditor::SpriteRegionEditor(EditorNode* p_editor)
+{
+	node=NULL;
+	editor=p_editor;
+	undo_redo = editor->get_undo_redo();
+
+	snap_step=Vector2(10,10);
+	use_snap=false;
+	snap_show_grid=false;
+
+	add_child( memnew( VSeparator ));
+	edit_node = memnew( ToolButton );
+	add_child(edit_node);
+	edit_node->connect("pressed",this,"_edit_node");
+
+	dlg_editor = memnew( AcceptDialog );
+	add_child(dlg_editor);
+	dlg_editor->set_title("Sprite Region Editor");
+	dlg_editor->set_self_opacity(0.9);
+
+	VBoxContainer *main_vb = memnew( VBoxContainer );
+	dlg_editor->add_child(main_vb);
+	dlg_editor->set_child_rect(main_vb);
+	HBoxContainer *hb_tools = memnew( HBoxContainer );
+	main_vb->add_child(hb_tools);
+
+	b_snap_enable = memnew( ToolButton );
+	hb_tools->add_child(b_snap_enable);
+	b_snap_enable->set_text("Snap");
+	b_snap_enable->set_focus_mode(FOCUS_NONE);
+	b_snap_enable->set_toggle_mode(true);
+	b_snap_enable->set_pressed(use_snap);
+	b_snap_enable->set_tooltip("Enable Snap");
+	b_snap_enable->connect("toggled",this,"_set_use_snap");
+
+	b_snap_grid = memnew( ToolButton );
+	hb_tools->add_child(b_snap_grid);
+	b_snap_grid->set_text("Grid");
+	b_snap_grid->set_focus_mode(FOCUS_NONE);
+	b_snap_grid->set_toggle_mode(true);
+	b_snap_grid->set_pressed(snap_show_grid);
+	b_snap_grid->set_tooltip("Show Grid");
+	b_snap_grid->connect("toggled",this,"_set_show_grid");
+
+	hb_tools->add_child( memnew( VSeparator ));
+	hb_tools->add_child( memnew( Label("Grid Offset:") ) );
+
+	SpinBox *sb_off_x = memnew( SpinBox );
+	sb_off_x->set_min(-256);
+	sb_off_x->set_max(256);
+	sb_off_x->set_step(1);
+	sb_off_x->set_val(snap_offset.x);
+	sb_off_x->set_suffix("px");
+	sb_off_x->connect("value_changed", this, "_set_snap_off_x");
+	hb_tools->add_child(sb_off_x);
+
+	SpinBox *sb_off_y = memnew( SpinBox );
+	sb_off_y->set_min(-256);
+	sb_off_y->set_max(256);
+	sb_off_y->set_step(1);
+	sb_off_y->set_val(snap_offset.y);
+	sb_off_y->set_suffix("px");
+	sb_off_y->connect("value_changed", this, "_set_snap_off_y");
+	hb_tools->add_child(sb_off_y);
+
+	hb_tools->add_child( memnew( VSeparator ));
+	hb_tools->add_child( memnew( Label("Grid Step:") ) );
+
+	SpinBox *sb_step_x = memnew( SpinBox );
+	sb_step_x->set_min(-256);
+	sb_step_x->set_max(256);
+	sb_step_x->set_step(1);
+	sb_step_x->set_val(snap_step.x);
+	sb_step_x->set_suffix("px");
+	sb_step_x->connect("value_changed", this, "_set_snap_step_x");
+	hb_tools->add_child(sb_step_x);
+
+	SpinBox *sb_step_y = memnew( SpinBox );
+	sb_step_y->set_min(-256);
+	sb_step_y->set_max(256);
+	sb_step_y->set_step(1);
+	sb_step_y->set_val(snap_step.y);
+	sb_step_y->set_suffix("px");
+	sb_step_y->connect("value_changed", this, "_set_snap_step_y");
+	hb_tools->add_child(sb_step_y);
+
+//	MARIANOGNU::TODO: Add more tools?
+
+	HBoxContainer *main_hb = memnew( HBoxContainer );
+	main_vb->add_child(main_hb);
+	edit_draw = memnew( Control );
+	main_hb->add_child(edit_draw);
+	main_hb->set_v_size_flags(SIZE_EXPAND_FILL);
+	edit_draw->set_h_size_flags(SIZE_EXPAND_FILL);
+
+
+	hb_tools->add_child( memnew( VSeparator ));
+	icon_zoom = memnew( TextureFrame );
+	hb_tools->add_child(icon_zoom);
+
+	zoom = memnew( HSlider );
+	zoom->set_min(0.01);
+	zoom->set_max(4);
+	zoom->set_val(1);
+	zoom->set_step(0.01);
+	hb_tools->add_child(zoom);
+	zoom->set_custom_minimum_size(Size2(200,0));
+	zoom_value = memnew( SpinBox );
+	zoom->share(zoom_value);
+	zoom_value->set_custom_minimum_size(Size2(50,0));
+	hb_tools->add_child(zoom_value);
+	zoom->connect("value_changed",this,"_scroll_changed");
+
+
+
+	vscroll = memnew( VScrollBar);
+	main_hb->add_child(vscroll);
+	vscroll->connect("value_changed",this,"_scroll_changed");
+	hscroll = memnew( HScrollBar );
+	main_vb->add_child(hscroll);
+	hscroll->connect("value_changed",this,"_scroll_changed");
+
+	edit_draw->connect("draw",this,"_region_draw");
+	edit_draw->connect("input_event",this,"_region_input");
+	draw_zoom=1.0;
+	updating_scroll=false;
+
+	error = memnew( AcceptDialog);
+	add_child(error);
+
+}
+
+void SpriteRegionEditorPlugin::edit(Object *p_node)
+{
+	region_editor->edit(p_node->cast_to<Node>());
+}
+
+bool SpriteRegionEditorPlugin::handles(Object *p_node) const
+{
+	return p_node->is_type("Sprite");
+}
+
+void SpriteRegionEditorPlugin::make_visible(bool p_visible)
+{
+	if (p_visible) {
+		region_editor->show();
+	} else {
+		region_editor->hide();
+		region_editor->edit(NULL);
+	}
+}
+
+SpriteRegionEditorPlugin::SpriteRegionEditorPlugin(EditorNode *p_node)
+{
+	editor = p_node;
+	region_editor= memnew ( SpriteRegionEditor(p_node) );
+	CanvasItemEditor::get_singleton()->add_control_to_menu_panel(region_editor);
+
+	region_editor->hide();
+}
+

tools/editor/plugins/sprite_region_editor_plugin.h

@@ -0,0 +1,125 @@
+/*************************************************************************/
+/*  sprite_region_editor_plugin.h                                        */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2015 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Author: Mariano Suligoy                                               */
+/*                                                                       */
+/* 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.                */
+/*************************************************************************/
+
+#ifndef SPRITE_REGION_EDITOR_PLUGIN_H
+#define SPRITE_REGION_EDITOR_PLUGIN_H
+
+#include "canvas_item_editor_plugin.h"
+#include "tools/editor/editor_plugin.h"
+#include "tools/editor/editor_node.h"
+#include "scene/2d/sprite.h"
+
+class SpriteRegionEditor : public HBoxContainer {
+
+	OBJ_TYPE(SpriteRegionEditor, HBoxContainer );
+
+	ToolButton *edit_node;
+//	Button *use_region;
+	ToolButton *b_snap_enable;
+	ToolButton *b_snap_grid;
+	TextureFrame *icon_zoom;
+	HSlider *zoom;
+	SpinBox *zoom_value;
+	Control *edit_draw;
+
+	VScrollBar *vscroll;
+	HScrollBar *hscroll;
+
+	Sprite *node;
+	EditorNode *editor;
+	AcceptDialog *dlg_editor;
+	UndoRedo* undo_redo;
+
+	Vector2 draw_ofs;
+	float draw_zoom;
+	bool updating_scroll;
+
+	bool use_snap;
+	bool snap_show_grid;
+	Vector2 snap_offset;
+	Vector2 snap_step;
+
+	Rect2 rect;
+	Rect2 rect_prev;
+	bool drag;
+	bool creating;
+	Vector2 drag_from;
+	int drag_index;
+
+	AcceptDialog *error;
+
+	void _set_use_snap(bool p_use);
+	void _set_show_grid(bool p_show);
+	void _set_snap_off_x(float p_val);
+	void _set_snap_off_y(float p_val);
+	void _set_snap_step_x(float p_val);
+	void _set_snap_step_y(float p_val);
+
+protected:
+
+	void _notification(int p_what);
+	void _node_removed(Node *p_node);
+	static void _bind_methods();
+
+	Vector2 snap_point(Vector2 p_target) const;
+
+public:
+
+	void edit();
+	void _edit_node();
+	void _region_draw();
+	void _region_input(const InputEvent &p_input);
+	void _scroll_changed(float);
+
+	void edit(Node *p_sprite);
+	SpriteRegionEditor(EditorNode* p_editor);
+
+};
+
+class SpriteRegionEditorPlugin : public EditorPlugin
+{
+
+	OBJ_TYPE( SpriteRegionEditorPlugin, EditorPlugin );
+
+	SpriteRegionEditor *region_editor;
+	EditorNode *editor;
+public:
+
+	virtual String get_name() const { return "Sprite"; }
+	bool has_main_screen() const { return false; }
+	virtual void edit(Object *p_node);
+	virtual bool handles(Object *p_node) const;
+	virtual void make_visible(bool p_visible);
+
+	SpriteRegionEditorPlugin(EditorNode *p_node);
+};
+
+#endif // SPRITE_REGION_EDITOR_PLUGIN_H