Widgets: Add CheckboxWidget

src/Nazara/Widgets/CheckboxWidget.cpp

@@ -0,0 +1,71 @@
+// Copyright (C) 2021 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
+// This file is part of the "Nazara Engine - Widgets module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Widgets/CheckboxWidget.hpp>
+#include <Nazara/Graphics/BasicMaterial.hpp>
+#include <Nazara/Graphics/Material.hpp>
+#include <Nazara/Graphics/MaterialPass.hpp>
+#include <Nazara/Graphics/SlicedSprite.hpp>
+#include <Nazara/Graphics/Components/GraphicsComponent.hpp>
+#include <Nazara/Utility/AbstractTextDrawer.hpp>
+#include <Nazara/Utility/Components/NodeComponent.hpp>
+#include <Nazara/Widgets/Canvas.hpp>
+#include <Nazara/Widgets/Widgets.hpp>
+#include <Nazara/Widgets/Debug.hpp>
+
+namespace Nz
+{
+	CheckboxWidget::CheckboxWidget(BaseWidget* parent) :
+	BaseWidget(parent),
+	m_state(CheckboxState::Unchecked),
+	m_isTristateEnabled(false)
+	{
+		m_style = GetTheme()->CreateStyle(this);
+
+		Layout();
+	}
+
+	void CheckboxWidget::SetState(CheckboxState checkboxState)
+	{
+		OnCheckboxStateUpdate(this, checkboxState);
+		m_state = checkboxState;
+
+		m_style->OnNewState(m_state);
+	}
+
+	void CheckboxWidget::Layout()
+	{
+		BaseWidget::Layout();
+		m_style->Layout(GetSize());
+	}
+
+	void CheckboxWidget::OnMouseButtonPress(int /*x*/, int /*y*/, Mouse::Button button)
+	{
+		if (button == Mouse::Left)
+			m_style->OnPress();
+	}
+
+	void CheckboxWidget::OnMouseButtonRelease(int x, int y, Mouse::Button button)
+	{
+		if (button == Mouse::Left)
+		{
+			m_style->OnRelease();
+
+			// If user clicks inside button and holds it outside, a release mouse button event will be triggered outside of the widget
+			// we don't want this to trigger the button, so double-check
+			if (IsInside(x, y))
+				SwitchToNextState();
+		}
+	}
+
+	void CheckboxWidget::OnMouseEnter()
+	{
+		m_style->OnHoverBegin();
+	}
+
+	void CheckboxWidget::OnMouseExit()
+	{
+		m_style->OnHoverEnd();
+	}
+}