text: /*************************************************************************/
  /*  dialogs.cpp                                                          */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                      https://godotengine.org                          */
  /*************************************************************************/
  /* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
  /* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md)    */
  /*                                                                       */
  /* 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 "dialogs.h"
  #include "line_edit.h"
  #include "print_string.h"
  #include "translation.h"
  
  #ifdef TOOLS_ENABLED
  #include "editor/editor_node.h"
  #endif
  
  // WindowDialog
  
  void WindowDialog::_post_popup() {
  
  	drag_type = DRAG_NONE; // just in case
  }
  
  void WindowDialog::_fix_size() {
  
  	// Perhaps this should be called when the viewport resizes as well or windows go out of bounds...
  
  	// Ensure the whole window is visible.
  	Point2i pos = get_global_position();
  	Size2i size = get_size();
  	Size2i viewport_size = get_viewport_rect().size;
  
  	// Windows require additional padding to keep the window chrome visible.
  	Ref<StyleBox> panel = get_stylebox("panel", "WindowDialog");
  	float top = 0;
  	float left = 0;
  	float bottom = 0;
  	float right = 0;
  	// Check validity, because the theme could contain a different type of StyleBox
  	if (panel->get_class() == "StyleBoxTexture") {
  		Ref<StyleBoxTexture> panel_texture = Object::cast_to<StyleBoxTexture>(*panel);
  		top = panel_texture->get_expand_margin_size(MARGIN_TOP);
  		left = panel_texture->get_expand_margin_size(MARGIN_LEFT);
  		bottom = panel_texture->get_expand_margin_size(MARGIN_BOTTOM);
  		right = panel_texture->get_expand_margin_size(MARGIN_RIGHT);
  	} else if (panel->get_class() == "StyleBoxFlat") {
  		Ref<StyleBoxFlat> panel_flat = Object::cast_to<StyleBoxFlat>(*panel);
  		top = panel_flat->get_expand_margin_size(MARGIN_TOP);
  		left = panel_flat->get_expand_margin_size(MARGIN_LEFT);
  		bottom = panel_flat->get_expand_margin_size(MARGIN_BOTTOM);
  		right = panel_flat->get_expand_margin_size(MARGIN_RIGHT);
  	}
  
  	pos.x = MAX(left, MIN(pos.x, viewport_size.x - size.x - right));
  	pos.y = MAX(top, MIN(pos.y, viewport_size.y - size.y - bottom));
  	set_global_position(pos);
  
  	if (resizable) {
  		size.x = MIN(size.x, viewport_size.x - left - right);
  		size.y = MIN(size.y, viewport_size.y - top - bottom);
  		set_size(size);
  	}
  }
  
  bool WindowDialog::has_point(const Point2 &p_point) const {
  
  	Rect2 r(Point2(), get_size());
  
  	// Enlarge upwards for title bar.
  	int title_height = get_constant("title_height", "WindowDialog");
  	r.position.y -= title_height;
  	r.size.y += title_height;
  
  	// Inflate by the resizable border thickness.
  	if (resizable) {
  		int scaleborder_size = get_constant("scaleborder_size", "WindowDialog");
  		r.position.x -= scaleborder_size;
  		r.size.width += scaleborder_size * 2;
  		r.position.y -= scaleborder_size;
  		r.size.height += scaleborder_size * 2;
  	}
  
  	return r.has_point(p_point);
  }
  
  void WindowDialog::_gui_input(const Ref<InputEvent> &p_event) {
  
  	Ref<InputEventMouseButton> mb = p_event;
  
  	if (mb.is_valid() && mb->get_button_index() == BUTTON_LEFT) {
  
  		if (mb->is_pressed()) {
  			// Begin a possible dragging operation.
  			drag_type = _drag_hit_test(Point2(mb->get_position().x, mb->get_position().y));
  			if (drag_type != DRAG_NONE)
  				drag_offset = get_global_mouse_position() - get_position();
  			drag_offset_far = get_position() + get_size() - get_global_mouse_position();
  		} else if (drag_type != DRAG_NONE && !mb->is_pressed()) {
  			// End a dragging operation.
  			drag_type = DRAG_NONE;
  		}
  	}
  
  	Ref<InputEventMouseMotion> mm = p_event;
  
  	if (mm.is_valid()) {
  
  		if (drag_type == DRAG_NONE) {
  			// Update the cursor while moving along the borders.
  			CursorShape cursor = CURSOR_ARROW;
  			if (resizable) {
  				int preview_drag_type = _drag_hit_test(Point2(mm->get_position().x, mm->get_position().y));
  				switch (preview_drag_type) {
  					case DRAG_RESIZE_TOP:
  					case DRAG_RESIZE_BOTTOM:
  						cursor = CURSOR_VSIZE;
  						break;
  					case DRAG_RESIZE_LEFT:
  					case DRAG_RESIZE_RIGHT:
  						cursor = CURSOR_HSIZE;
  						break;
  					case DRAG_RESIZE_TOP + DRAG_RESIZE_LEFT:
  					case DRAG_RESIZE_BOTTOM + DRAG_RESIZE_RIGHT:
  						cursor = CURSOR_FDIAGSIZE;
  						break;
  					case DRAG_RESIZE_TOP + DRAG_RESIZE_RIGHT:
  					case DRAG_RESIZE_BOTTOM + DRAG_RESIZE_LEFT:
  						cursor = CURSOR_BDIAGSIZE;
  						break;
  				}
  			}
  			if (get_cursor_shape() != cursor)
  				set_default_cursor_shape(cursor);
  		} else {
  			// Update while in a dragging operation.
  			Point2 global_pos = get_global_mouse_position();
  			global_pos.y = MAX(global_pos.y, 0); // Ensure title bar stays visible.
  
  			Rect2 rect = get_rect();
  			Size2 min_size = get_minimum_size();
  
  			if (drag_type == DRAG_MOVE) {
  				rect.position = global_pos - drag_offset;
  			} else {
  				if (drag_type & DRAG_RESIZE_TOP) {
  					int bottom = rect.position.y + rect.size.height;
  					int max_y = bottom - min_size.height;
  					rect.position.y = MIN(global_pos.y - drag_offset.y, max_y);
  					rect.size.height = bottom - rect.position.y;
  				} else if (drag_type & DRAG_RESIZE_BOTTOM) {
  					rect.size.height = global_pos.y - rect.position.y + drag_offset_far.y;
  				}
  				if (drag_type & DRAG_RESIZE_LEFT) {
  					int right = rect.position.x + rect.size.width;
  					int max_x = right - min_size.width;
  					rect.position.x = MIN(global_pos.x - drag_offset.x, max_x);
  					rect.size.width = right - rect.position.x;
  				} else if (drag_type & DRAG_RESIZE_RIGHT) {
  					rect.size.width = global_pos.x - rect.position.x + drag_offset_far.x;
  				}
  			}
  
  			set_size(rect.size);
  			set_position(rect.position);
  		}
  	}
  }
  
  void WindowDialog::_notification(int p_what) {
  
  	switch (p_what) {
  		case NOTIFICATION_DRAW: {
  			RID canvas = get_canvas_item();
  
  			// Draw the background.
  			Ref<StyleBox> panel = get_stylebox("panel");
  			Size2 size = get_size();
  			panel->draw(canvas, Rect2(0, 0, size.x, size.y));
  
  			// Draw the title bar text.
  			Ref<Font> title_font = get_font("title_font", "WindowDialog");
  			Color title_color = get_color("title_color", "WindowDialog");
  			int title_height = get_constant("title_height", "WindowDialog");
  			int font_height = title_font->get_height() - title_font->get_descent() * 2;
  			int x = (size.x - title_font->get_string_size(title).x) / 2;
  			int y = (-title_height + font_height) / 2;
  			title_font->draw(canvas, Point2(x, y), title, title_color, size.x - panel->get_minimum_size().x);
  		} break;
  
  		case NOTIFICATION_THEME_CHANGED:
  		case NOTIFICATION_ENTER_TREE: {
  			close_button->set_normal_texture(get_icon("close", "WindowDialog"));
  			close_button->set_pressed_texture(get_icon("close", "WindowDialog"));
  			close_button->set_hover_texture(get_icon("close_highlight", "WindowDialog"));
  			close_button->set_anchor(MARGIN_LEFT, ANCHOR_END);
  			close_button->set_begin(Point2(-get_constant("close_h_ofs", "WindowDialog"), -get_constant("close_v_ofs", "WindowDialog")));
  		} break;
  
  		case NOTIFICATION_MOUSE_EXIT: {
  			// Reset the mouse cursor when leaving the resizable window border.
  			if (resizable && !drag_type) {
  				if (get_default_cursor_shape() != CURSOR_ARROW)
  					set_default_cursor_shape(CURSOR_ARROW);
  			}
  		} break;
  #ifdef TOOLS_ENABLED
  		case NOTIFICATION_POST_POPUP: {
  			if (get_tree() && Engine::get_singleton()->is_editor_hint() && EditorNode::get_singleton())
  				EditorNode::get_singleton()->dim_editor(true);
  		} break;
  		case NOTIFICATION_POPUP_HIDE: {
  			if (get_tree() && Engine::get_singleton()->is_editor_hint() && EditorNode::get_singleton())
  				EditorNode::get_singleton()->dim_editor(false);
  		} break;
  #endif
  	}
  }
  
  void WindowDialog::_closed() {
  
  	_close_pressed();
  	hide();
  }
  
  int WindowDialog::_drag_hit_test(const Point2 &pos) const {
  	int drag_type = DRAG_NONE;
  
  	if (resizable) {
  		int title_height = get_constant("title_height", "WindowDialog");
  		int scaleborder_size = get_constant("scaleborder_size", "WindowDialog");
  
  		Rect2 rect = get_rect();
  
  		if (pos.y < (-title_height + scaleborder_size))
  			drag_type = DRAG_RESIZE_TOP;
  		else if (pos.y >= (rect.size.height - scaleborder_size))
  			drag_type = DRAG_RESIZE_BOTTOM;
  		if (pos.x < scaleborder_size)
  			drag_type |= DRAG_RESIZE_LEFT;
  		else if (pos.x >= (rect.size.width - scaleborder_size))
  			drag_type |= DRAG_RESIZE_RIGHT;
  	}
  
  	if (drag_type == DRAG_NONE && pos.y < 0)
  		drag_type = DRAG_MOVE;
  
  	return drag_type;
  }
  
  void WindowDialog::set_title(const String &p_title) {
  
  	title = tr(p_title);
  	update();
  }
  String WindowDialog::get_title() const {
  
  	return title;
  }
  
  void WindowDialog::set_resizable(bool p_resizable) {
  	resizable = p_resizable;
  }
  bool WindowDialog::get_resizable() const {
  	return resizable;
  }
  
  Size2 WindowDialog::get_minimum_size() const {
  
  	Ref<Font> font = get_font("title_font", "WindowDialog");
  	int msx = close_button->get_combined_minimum_size().x;
  	msx += font->get_string_size(title).x;
  
  	return Size2(msx, 1);
  }
  
  TextureButton *WindowDialog::get_close_button() {
  
  	return close_button;
  }
  
  void WindowDialog::_bind_methods() {
  
  	ClassDB::bind_method(D_METHOD("_gui_input"), &WindowDialog::_gui_input);
  	ClassDB::bind_method(D_METHOD("set_title", "title"), &WindowDialog::set_title);
  	ClassDB::bind_method(D_METHOD("get_title"), &WindowDialog::get_title);
  	ClassDB::bind_method(D_METHOD("set_resizable", "resizable"), &WindowDialog::set_resizable);
  	ClassDB::bind_method(D_METHOD("get_resizable"), &WindowDialog::get_resizable);
  	ClassDB::bind_method(D_METHOD("_closed"), &WindowDialog::_closed);
  	ClassDB::bind_method(D_METHOD("get_close_button"), &WindowDialog::get_close_button);
  
  	ADD_PROPERTY(PropertyInfo(Variant::STRING, "window_title", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_DEFAULT_INTL), "set_title", "get_title");
  	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "resizable", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_DEFAULT_INTL), "set_resizable", "get_resizable");
  }
  
  WindowDialog::WindowDialog() {
  
  	//title="Hello!";
  	drag_type = DRAG_NONE;
  	resizable = false;
  	close_button = memnew(TextureButton);
  	add_child(close_button);
  	close_button->connect("pressed", this, "_closed");
  }
  
  WindowDialog::~WindowDialog() {
  }
  
  // PopupDialog
  
  void PopupDialog::_notification(int p_what) {
  
  	if (p_what == NOTIFICATION_DRAW) {
  
  		RID ci = get_canvas_item();
  		get_stylebox("panel", "PopupMenu")->draw(ci, Rect2(Point2(), get_size()));
  	}
  }
  
  PopupDialog::PopupDialog() {
  }
  
  PopupDialog::~PopupDialog() {
  }
  
  // AcceptDialog
  
  void AcceptDialog::_post_popup() {
  
  	WindowDialog::_post_popup();
  	get_ok()->grab_focus();
  }
  
  void AcceptDialog::_notification(int p_what) {
  
  	if (p_what == NOTIFICATION_MODAL_CLOSE) {
  
  		cancel_pressed();
  	} else if (p_what == NOTIFICATION_READY) {
  
  		_update_child_rects();
  	} else if (p_what == NOTIFICATION_RESIZED) {
  
  		_update_child_rects();
  	}
  }
  
  void AcceptDialog::_builtin_text_entered(const String &p_text) {
  
  	_ok_pressed();
  }
  
  void AcceptDialog::_ok_pressed() {
  
  	if (hide_on_ok)
  		hide();
  	ok_pressed();
  	emit_signal("confirmed");
  }
  void AcceptDialog::_close_pressed() {
  
  	cancel_pressed();
  }
  
  String AcceptDialog::get_text() const {
  
  	return label->get_text();
  }
  void AcceptDialog::set_text(String p_text) {
  
  	label->set_text(p_text);
  	minimum_size_changed();
  	_update_child_rects();
  }
  
  void AcceptDialog::set_hide_on_ok(bool p_hide) {
  
  	hide_on_ok = p_hide;
  }
  
  bool AcceptDialog::get_hide_on_ok() const {
  
  	return hide_on_ok;
  }
  
  void AcceptDialog::register_text_enter(Node *p_line_edit) {
  
  	ERR_FAIL_NULL(p_line_edit);
  	p_line_edit->connect("text_entered", this, "_builtin_text_entered");
  }
  
  void AcceptDialog::_update_child_rects() {
  
  	Size2 label_size = label->get_minimum_size();
  	if (label->get_text().empty()) {
  		label_size.height = 0;
  	}
  	int margin = get_constant("margin", "Dialogs");
  	Size2 size = get_size();
  	Size2 hminsize = hbc->get_combined_minimum_size();
  
  	Vector2 cpos(margin, margin + label_size.height);
  	Vector2 csize(size.x - margin * 2, size.y - margin * 3 - hminsize.y - label_size.height);
  
  	for (int i = 0; i < get_child_count(); i++) {
  		Control *c = Object::cast_to<Control>(get_child(i));
  		if (!c)
  			continue;
  
  		if (c == hbc || c == label || c == get_close_button() || c->is_set_as_toplevel())
  			continue;
  
  		c->set_position(cpos);
  		c->set_size(csize);
  	}
  
  	cpos.y += csize.y + margin;
  	csize.y = hminsize.y;
  
  	hbc->set_position(cpos);
  	hbc->set_size(csize);
  }
  
  Size2 AcceptDialog::get_minimum_size() const {
  
  	int margin = get_constant("margin", "Dialogs");
  	Size2 minsize = label->get_combined_minimum_size();
  
  	for (int i = 0; i < get_child_count(); i++) {
  		Control *c = Object::cast_to<Control>(get_child(i));
  		if (!c)
  			continue;
  
  		if (c == hbc || c == label || c == const_cast<AcceptDialog *>(this)->get_close_button() || c->is_set_as_toplevel())
  			continue;
  
  		Size2 cminsize = c->get_combined_minimum_size();
  		minsize.x = MAX(cminsize.x, minsize.x);
  		minsize.y = MAX(cminsize.y, minsize.y);
  	}
  
  	Size2 hminsize = hbc->get_combined_minimum_size();
  	minsize.x = MAX(hminsize.x, minsize.x);
  	minsize.y += hminsize.y;
  	minsize.x += margin * 2;
  	minsize.y += margin * 3; //one as separation between hbc and child
  
  	Size2 wmsize = WindowDialog::get_minimum_size();
  	minsize.x = MAX(wmsize.x, minsize.x);
  	return minsize;
  }
  
  void AcceptDialog::_custom_action(const String &p_action) {
  
  	emit_signal("custom_action", p_action);
  	custom_action(p_action);
  }
  
  Button *AcceptDialog::add_button(const String &p_text, bool p_right, const String &p_action) {
  
  	Button *button = memnew(Button);
  	button->set_text(p_text);
  	if (p_right) {
  		hbc->add_child(button);
  		hbc->add_spacer();
  	} else {
  
  		hbc->add_child(button);
  		hbc->move_child(button, 0);
  		hbc->add_spacer(true);
  	}
  
  	if (p_action != "") {
  		button->connect("pressed", this, "_custom_action", varray(p_action));
  	}
  
  	return button;
  }
  
  Button *AcceptDialog::add_cancel(const String &p_cancel) {
  
  	String c = p_cancel;
  	if (p_cancel == "")
  		c = RTR("Cancel");
  	Button *b = swap_ok_cancel ? add_button(c, true) : add_button(c);
  	b->connect("pressed", this, "_closed");
  	return b;
  }
  
  void AcceptDialog::_bind_methods() {
  
  	ClassDB::bind_method(D_METHOD("_ok"), &AcceptDialog::_ok_pressed);
  	ClassDB::bind_method(D_METHOD("get_ok"), &AcceptDialog::get_ok);
  	ClassDB::bind_method(D_METHOD("get_label"), &AcceptDialog::get_label);
  	ClassDB::bind_method(D_METHOD("set_hide_on_ok", "enabled"), &AcceptDialog::set_hide_on_ok);
  	ClassDB::bind_method(D_METHOD("get_hide_on_ok"), &AcceptDialog::get_hide_on_ok);
  	ClassDB::bind_method(D_METHOD("add_button", "text", "right", "action"), &AcceptDialog::add_button, DEFVAL(false), DEFVAL(""));
  	ClassDB::bind_method(D_METHOD("add_cancel", "name"), &AcceptDialog::add_cancel);
  	ClassDB::bind_method(D_METHOD("_builtin_text_entered"), &AcceptDialog::_builtin_text_entered);
  	ClassDB::bind_method(D_METHOD("register_text_enter", "line_edit"), &AcceptDialog::register_text_enter);
  	ClassDB::bind_method(D_METHOD("_custom_action"), &AcceptDialog::_custom_action);
  	ClassDB::bind_method(D_METHOD("set_text", "text"), &AcceptDialog::set_text);
  	ClassDB::bind_method(D_METHOD("get_text"), &AcceptDialog::get_text);
  
  	ADD_SIGNAL(MethodInfo("confirmed"));
  	ADD_SIGNAL(MethodInfo("custom_action", PropertyInfo(Variant::STRING, "action")));
  
  	ADD_GROUP("Dialog", "dialog");
  	ADD_PROPERTYNZ(PropertyInfo(Variant::STRING, "dialog_text", PROPERTY_HINT_MULTILINE_TEXT, "", PROPERTY_USAGE_DEFAULT_INTL), "set_text", "get_text");
  	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "dialog_hide_on_ok"), "set_hide_on_ok", "get_hide_on_ok");
  }
  
  bool AcceptDialog::swap_ok_cancel = false;
  void AcceptDialog::set_swap_ok_cancel(bool p_swap) {
  
  	swap_ok_cancel = p_swap;
  }
  
  AcceptDialog::AcceptDialog() {
  
  	int margin = get_constant("margin", "Dialogs");
  	int button_margin = get_constant("button_margin", "Dialogs");
  
  	label = memnew(Label);
  	label->set_anchor(MARGIN_RIGHT, ANCHOR_END);
  	label->set_anchor(MARGIN_BOTTOM, ANCHOR_END);
  	label->set_begin(Point2(margin, margin));
  	label->set_end(Point2(-margin, -button_margin - 10));
  	//label->set_autowrap(true);
  	add_child(label);
  
  	hbc = memnew(HBoxContainer);
  	add_child(hbc);
  
  	hbc->add_spacer();
  	ok = memnew(Button);
  	ok->set_text(RTR("OK"));
  	hbc->add_child(ok);
  	hbc->add_spacer();
  
  	ok->connect("pressed", this, "_ok");
  	set_as_toplevel(true);
  
  	hide_on_ok = true;
  	set_title(RTR("Alert!"));
  }
  
  AcceptDialog::~AcceptDialog() {
  }
  
  // ConfirmationDialog
  
  void ConfirmationDialog::_bind_methods() {
  
  	ClassDB::bind_method(D_METHOD("get_cancel"), &ConfirmationDialog::get_cancel);
  }
  
  Button *ConfirmationDialog::get_cancel() {
  
  	return cancel;
  }
  
  ConfirmationDialog::ConfirmationDialog() {
  
  	set_title(RTR("Please Confirm..."));
  #ifdef TOOLS_ENABLED
  	set_custom_minimum_size(Size2(200, 70) * EDSCALE);
  #endif
  	cancel = add_cancel();
  }
  