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			298 lines
		
	
	
	
		
			9.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			298 lines
		
	
	
	
		
			9.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*************************************************************************/
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| /*  button.cpp                                                           */
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| /*************************************************************************/
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| /*                       This file is part of:                           */
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| /*                           GODOT ENGINE                                */
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| /*                      https://godotengine.org                          */
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| /*************************************************************************/
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| /* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
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| /* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
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| /*                                                                       */
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| /* Permission is hereby granted, free of charge, to any person obtaining */
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| /* a copy of this software and associated documentation files (the       */
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| /* "Software"), to deal in the Software without restriction, including   */
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| /* without limitation the rights to use, copy, modify, merge, publish,   */
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| /* distribute, sublicense, and/or sell copies of the Software, and to    */
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| /* permit persons to whom the Software is furnished to do so, subject to */
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| /* the following conditions:                                             */
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| /*                                                                       */
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| /* The above copyright notice and this permission notice shall be        */
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| /* included in all copies or substantial portions of the Software.       */
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| /*                                                                       */
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| /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
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| /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
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| /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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| /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
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| /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
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| /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
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| /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
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| /*************************************************************************/
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| 
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| #include "button.h"
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| #include "core/translation.h"
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| #include "servers/visual_server.h"
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| 
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| Size2 Button::get_minimum_size() const {
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| 
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| 	Size2 minsize = get_font("font")->get_string_size(xl_text);
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| 	if (clip_text)
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| 		minsize.width = 0;
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| 
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| 	Ref<Texture> _icon;
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| 	if (icon.is_null() && has_icon("icon"))
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| 		_icon = Control::get_icon("icon");
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| 	else
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| 		_icon = icon;
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| 
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| 	if (!_icon.is_null()) {
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| 
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| 		minsize.height = MAX(minsize.height, _icon->get_height());
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| 		minsize.width += _icon->get_width();
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| 		if (xl_text != "")
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| 			minsize.width += get_constant("hseparation");
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| 	}
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| 
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| 	return get_stylebox("normal")->get_minimum_size() + minsize;
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| }
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| 
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| void Button::_set_internal_margin(Margin p_margin, float p_value) {
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| 	_internal_margin[p_margin] = p_value;
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| }
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| 
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| void Button::_notification(int p_what) {
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| 
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| 	if (p_what == NOTIFICATION_TRANSLATION_CHANGED) {
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| 
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| 		xl_text = tr(text);
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| 		minimum_size_changed();
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| 		update();
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| 	}
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| 
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| 	if (p_what == NOTIFICATION_DRAW) {
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| 
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| 		RID ci = get_canvas_item();
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| 		Size2 size = get_size();
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| 		Color color;
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| 		Color color_icon(1, 1, 1, 1);
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| 
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| 		Ref<StyleBox> style = get_stylebox("normal");
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| 
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| 		switch (get_draw_mode()) {
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| 
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| 			case DRAW_NORMAL: {
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| 
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| 				style = get_stylebox("normal");
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| 				if (!flat)
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| 					style->draw(ci, Rect2(Point2(0, 0), size));
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| 				color = get_color("font_color");
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| 				if (has_color("icon_color_normal"))
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| 					color_icon = get_color("icon_color_normal");
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| 			} break;
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| 			case DRAW_HOVER_PRESSED: {
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| 				if (has_stylebox("hover_pressed") && has_stylebox_override("hover_pressed")) {
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| 					style = get_stylebox("hover_pressed");
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| 					if (!flat)
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| 						style->draw(ci, Rect2(Point2(0, 0), size));
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| 					if (has_color("font_color_hover_pressed"))
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| 						color = get_color("font_color_hover_pressed");
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| 					else
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| 						color = get_color("font_color");
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| 					if (has_color("icon_color_hover_pressed"))
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| 						color_icon = get_color("icon_color_hover_pressed");
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| 
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| 					break;
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| 				}
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| 			}
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| 			case DRAW_PRESSED: {
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| 
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| 				style = get_stylebox("pressed");
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| 				if (!flat)
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| 					style->draw(ci, Rect2(Point2(0, 0), size));
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| 				if (has_color("font_color_pressed"))
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| 					color = get_color("font_color_pressed");
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| 				else
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| 					color = get_color("font_color");
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| 				if (has_color("icon_color_pressed"))
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| 					color_icon = get_color("icon_color_pressed");
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| 
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| 			} break;
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| 			case DRAW_HOVER: {
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| 
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| 				style = get_stylebox("hover");
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| 				if (!flat)
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| 					style->draw(ci, Rect2(Point2(0, 0), size));
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| 				color = get_color("font_color_hover");
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| 				if (has_color("icon_color_hover"))
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| 					color_icon = get_color("icon_color_hover");
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| 
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| 			} break;
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| 			case DRAW_DISABLED: {
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| 
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| 				style = get_stylebox("disabled");
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| 				if (!flat)
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| 					style->draw(ci, Rect2(Point2(0, 0), size));
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| 				color = get_color("font_color_disabled");
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| 				if (has_color("icon_color_disabled"))
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| 					color_icon = get_color("icon_color_disabled");
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| 
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| 			} break;
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| 		}
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| 
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| 		if (has_focus()) {
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| 
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| 			Ref<StyleBox> style = get_stylebox("focus");
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| 			style->draw(ci, Rect2(Point2(), size));
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| 		}
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| 
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| 		Ref<Font> font = get_font("font");
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| 		Ref<Texture> _icon;
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| 		if (icon.is_null() && has_icon("icon"))
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| 			_icon = Control::get_icon("icon");
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| 		else
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| 			_icon = icon;
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| 
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| 		Point2 icon_ofs = (!_icon.is_null()) ? Point2(_icon->get_width() + get_constant("hseparation"), 0) : Point2();
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| 		int text_clip = size.width - style->get_minimum_size().width - icon_ofs.width;
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| 		Point2 text_ofs = (size - style->get_minimum_size() - icon_ofs - font->get_string_size(xl_text) - Point2(_internal_margin[MARGIN_RIGHT] - _internal_margin[MARGIN_LEFT], 0)) / 2.0;
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| 
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| 		switch (align) {
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| 			case ALIGN_LEFT: {
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| 				text_ofs.x = style->get_margin(MARGIN_LEFT) + icon_ofs.x + _internal_margin[MARGIN_LEFT] + get_constant("hseparation");
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| 				text_ofs.y += style->get_offset().y;
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| 			} break;
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| 			case ALIGN_CENTER: {
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| 				if (text_ofs.x < 0)
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| 					text_ofs.x = 0;
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| 				text_ofs += icon_ofs;
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| 				text_ofs += style->get_offset();
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| 			} break;
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| 			case ALIGN_RIGHT: {
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| 				if (_internal_margin[MARGIN_RIGHT] > 0) {
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| 					text_ofs.x = size.x - style->get_margin(MARGIN_RIGHT) - font->get_string_size(xl_text).x - _internal_margin[MARGIN_RIGHT] - get_constant("hseparation");
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| 				} else {
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| 					text_ofs.x = size.x - style->get_margin(MARGIN_RIGHT) - font->get_string_size(xl_text).x;
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| 				}
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| 				text_ofs.y += style->get_offset().y;
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| 			} break;
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| 		}
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| 
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| 		text_ofs.y += font->get_ascent();
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| 		font->draw(ci, text_ofs.floor(), xl_text, color, clip_text ? text_clip : -1);
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| 		if (!_icon.is_null()) {
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| 
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| 			int valign = size.height - style->get_minimum_size().y;
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| 			if (is_disabled())
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| 				color_icon.a = 0.4;
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| 			if (_internal_margin[MARGIN_LEFT] > 0) {
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| 				_icon->draw(ci, style->get_offset() + Point2(_internal_margin[MARGIN_LEFT] + get_constant("hseparation"), Math::floor((valign - _icon->get_height()) / 2.0)), color_icon);
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| 			} else {
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| 				_icon->draw(ci, style->get_offset() + Point2(0, Math::floor((valign - _icon->get_height()) / 2.0)), color_icon);
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| 			}
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| 		}
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| 	}
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| }
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| 
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| void Button::set_text(const String &p_text) {
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| 
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| 	if (text == p_text)
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| 		return;
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| 	text = p_text;
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| 	xl_text = tr(p_text);
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| 	update();
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| 	_change_notify("text");
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| 	minimum_size_changed();
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| }
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| String Button::get_text() const {
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| 
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| 	return text;
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| }
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| 
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| void Button::set_icon(const Ref<Texture> &p_icon) {
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| 
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| 	if (icon == p_icon)
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| 		return;
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| 	icon = p_icon;
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| 	update();
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| 	_change_notify("icon");
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| 	minimum_size_changed();
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| }
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| 
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| Ref<Texture> Button::get_icon() const {
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| 
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| 	return icon;
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| }
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| 
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| void Button::set_flat(bool p_flat) {
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| 
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| 	flat = p_flat;
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| 	update();
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| 	_change_notify("flat");
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| }
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| 
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| bool Button::is_flat() const {
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| 
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| 	return flat;
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| }
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| 
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| void Button::set_clip_text(bool p_clip_text) {
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| 
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| 	clip_text = p_clip_text;
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| 	update();
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| 	minimum_size_changed();
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| }
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| 
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| bool Button::get_clip_text() const {
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| 
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| 	return clip_text;
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| }
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| 
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| void Button::set_text_align(TextAlign p_align) {
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| 
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| 	align = p_align;
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| 	update();
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| }
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| 
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| Button::TextAlign Button::get_text_align() const {
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| 
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| 	return align;
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| }
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| 
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| void Button::_bind_methods() {
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| 
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| 	ClassDB::bind_method(D_METHOD("set_text", "text"), &Button::set_text);
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| 	ClassDB::bind_method(D_METHOD("get_text"), &Button::get_text);
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| 	ClassDB::bind_method(D_METHOD("set_button_icon", "texture"), &Button::set_icon);
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| 	ClassDB::bind_method(D_METHOD("get_button_icon"), &Button::get_icon);
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| 	ClassDB::bind_method(D_METHOD("set_flat", "enabled"), &Button::set_flat);
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| 	ClassDB::bind_method(D_METHOD("set_clip_text", "enabled"), &Button::set_clip_text);
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| 	ClassDB::bind_method(D_METHOD("get_clip_text"), &Button::get_clip_text);
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| 	ClassDB::bind_method(D_METHOD("set_text_align", "align"), &Button::set_text_align);
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| 	ClassDB::bind_method(D_METHOD("get_text_align"), &Button::get_text_align);
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| 	ClassDB::bind_method(D_METHOD("is_flat"), &Button::is_flat);
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| 
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| 	BIND_ENUM_CONSTANT(ALIGN_LEFT);
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| 	BIND_ENUM_CONSTANT(ALIGN_CENTER);
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| 	BIND_ENUM_CONSTANT(ALIGN_RIGHT);
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| 
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| 	ADD_PROPERTY(PropertyInfo(Variant::STRING, "text", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_DEFAULT_INTL), "set_text", "get_text");
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| 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "icon", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_button_icon", "get_button_icon");
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| 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "flat"), "set_flat", "is_flat");
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| 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "clip_text"), "set_clip_text", "get_clip_text");
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| 	ADD_PROPERTY(PropertyInfo(Variant::INT, "align", PROPERTY_HINT_ENUM, "Left,Center,Right"), "set_text_align", "get_text_align");
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| }
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| 
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| Button::Button(const String &p_text) {
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| 
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| 	flat = false;
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| 	clip_text = false;
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| 	set_mouse_filter(MOUSE_FILTER_STOP);
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| 	set_text(p_text);
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| 	align = ALIGN_CENTER;
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| 
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| 	for (int i = 0; i < 4; i++) {
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| 		_internal_margin[i] = 0;
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| 	}
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| }
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| 
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| Button::~Button() {
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| }
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