text: /*
  **  ClanLib SDK
  **  Copyright (c) 1997-2020 The ClanLib Team
  **
  **  This software is provided 'as-is', without any express or implied
  **  warranty.  In no event will the authors be held liable for any damages
  **  arising from the use of this software.
  **
  **  Permission is granted to anyone to use this software for any purpose,
  **  including commercial applications, and to alter it and redistribute it
  **  freely, subject to the following restrictions:
  **
  **  1. The origin of this software must not be misrepresented; you must not
  **     claim that you wrote the original software. If you use this software
  **     in a product, an acknowledgment in the product documentation would be
  **     appreciated but is not required.
  **  2. Altered source versions must be plainly marked as such, and must not be
  **     misrepresented as being the original software.
  **  3. This notice may not be removed or altered from any source distribution.
  **
  **  Note: Some of the libraries ClanLib may link to may have additional
  **  requirements or restrictions.
  **
  **  File Author(s):
  **
  **    Magnus Norddahl
  **    Mark Page
  **    Artem Khomenko (add sticky property)
  */
  
  #include "UI/precomp.h"
  #include "API/UI/StandardViews/button_view.h"
  #include "API/UI/StandardViews/image_view.h"
  #include "button_view_impl.h"
  
  namespace clan
  {
  
  	ButtonView::ButtonView() : impl(new ButtonViewImpl())
  	{
  		impl->button = this;
  		style()->set("flex-direction: row");
  
  		impl->image_view = std::make_shared<ImageView>();
  		impl->image_view->style()->set("flex: 0 0 auto");
  		add_child(impl->image_view);
  
  		impl->label = std::make_shared<LabelView>();
  		impl->label->style()->set("margin: auto");
  		impl->label->style()->set("flex: 1 1 auto");
  		add_child(impl->label);
  
  		slots.connect(sig_pointer_press(), impl.get(), &ButtonViewImpl::on_pointer_press);
  		slots.connect(sig_pointer_release(), impl.get(), &ButtonViewImpl::on_pointer_release);
  
  		slots.connect(sig_pointer_enter(), [&](PointerEvent &e) {impl->_state_hot = true;  impl->update_state(); });
  		slots.connect(sig_pointer_leave(), [&](PointerEvent &e) {impl->_state_hot = false;  impl->update_state(); });
  		slots.connect(impl->label->sig_pointer_enter(), [&](PointerEvent &e) {impl->_state_hot = true;  impl->update_state(); });
  		slots.connect(impl->label->sig_pointer_leave(), [&](PointerEvent &e) {impl->_state_hot = false;  impl->update_state(); });
  		slots.connect(impl->image_view->sig_pointer_enter(), [&](PointerEvent &e) {impl->_state_hot = true;  impl->update_state(); });
  		slots.connect(impl->image_view->sig_pointer_leave(), [&](PointerEvent &e) {impl->_state_hot = false;  impl->update_state(); });
  	}
  
  	ButtonView::~ButtonView()
  	{
  	}
  
  	std::function<void()> &ButtonView::func_clicked()
  	{
  		return impl->_func_clicked;
  	}
  
  	bool ButtonView::disabled() const
  	{
  		return impl->_state_disabled;
  	}
  
  	void ButtonView::set_disabled()
  	{
  		if (!impl->_state_disabled)
  		{
  			impl->_state_disabled = true;
  			impl->update_state();
  		}
  	}
  	void ButtonView::set_enabled()
  	{
  		if (impl->_state_disabled)
  		{
  			impl->_state_disabled = false;
  			impl->update_state();
  		}
  	}
  
  	std::shared_ptr<LabelView> ButtonView::label()
  	{
  		return impl->label;
  	}
  
  	std::shared_ptr<ImageView> ButtonView::image_view()
  	{
  		return impl->image_view;
  	}
  
  	void ButtonView::move_label_before_image()
  	{
  		impl->label->remove_from_parent();
  		impl->image_view->remove_from_parent();
  
  		add_child(impl->label);
  		add_child(impl->image_view);
  	}
  
  	void ButtonView::move_label_after_image()
  	{
  		impl->label->remove_from_parent();
  		impl->image_view->remove_from_parent();
  
  		add_child(impl->image_view);
  		add_child(impl->label);
  	}
  
  	void ButtonView::set_sticky(bool is_sticky)
  	{
  		impl->_sticky = is_sticky;
  	}
  
  	bool ButtonView::sticky()
  	{
  		return impl->_sticky;
  	}
  
  	bool ButtonView::pressed()
  	{
  		return impl->_state_pressed;
  	}
  
  	void ButtonView::set_pressed(bool is_pressed)
  	{
  		if (impl->_state_pressed != is_pressed)
  		{
  			impl->_state_pressed = is_pressed;
  			impl->_state_pressed_previous = !is_pressed;
  			impl->update_state();
  		}
  	}
  }
  
  