use mvvm

Switch the Testbed GUI architecture pattern to MVVM (Model-View-ModelView).

examples/testbed/framework/view_model.cpp

@@ -0,0 +1,192 @@
+/*
+* Copyright (c) 2016-2016 Irlan Robson http://www.irlan.net
+*
+* 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.
+*/
+
+#include <testbed/framework/view_model.h>
+#include <testbed/framework/model.h>
+#include <testbed/framework/view.h>
+#include <testbed/framework/test.h>
+#include <glfw/glfw3.h>
+
+TestSettings* g_testSettings = nullptr;
+Settings* g_settings = nullptr;
+
+ViewModel::ViewModel(Model* model, View* view)
+{
+	m_model = model;
+	assert(m_model->m_viewModel == nullptr);
+	m_model->m_viewModel = this;
+
+	m_view = view;
+	assert(m_view->m_viewModel == nullptr);
+	m_view->m_viewModel = this;
+
+	g_settings = &m_settings;
+	g_testSettings = &m_testSettings;
+}
+
+ViewModel::~ViewModel()
+{
+	g_settings = nullptr;
+	g_testSettings = nullptr;
+}
+
+void ViewModel::Action_SaveTest()
+{
+	m_model->Action_SaveTest();
+}
+
+void ViewModel::Action_SetTest()
+{
+	m_model->Action_SetTest();
+}
+
+void ViewModel::Action_PreviousTest()
+{
+	m_settings.testID = b3Clamp(m_settings.testID - 1, 0, int(g_testCount) - 1);
+	m_model->Action_SetTest();
+}
+
+void ViewModel::Action_NextTest()
+{
+	m_settings.testID = b3Clamp(m_settings.testID + 1, 0, int(g_testCount) - 1);
+	m_model->Action_SetTest();
+}
+
+void ViewModel::Action_PlayPause()
+{
+	m_model->Action_PlayPause();
+}
+
+void ViewModel::Action_SinglePlay()
+{
+	m_model->Action_SinglePlay();
+}
+
+void ViewModel::Action_ResetCamera()
+{
+	m_model->Action_ResetCamera();
+}
+
+void ViewModel::Event_SetWindowSize(int w, int h)
+{
+	m_model->Command_ResizeCamera(float32(w), float32(h));
+}
+
+void ViewModel::Event_Press_Key(int button)
+{
+	bool shiftDown = glfwGetKey(m_view->m_window, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS;
+	if (shiftDown)
+	{
+		if (button == GLFW_KEY_DOWN)
+		{
+			m_model->Command_ZoomCamera(1.0f);
+		}
+
+		if (button == GLFW_KEY_UP)
+		{
+			m_model->Command_ZoomCamera(-1.0f);
+		}
+	}
+	else
+	{
+		m_model->Command_Press_Key(button);
+	}
+}
+
+void ViewModel::Event_Release_Key(int button)
+{
+	bool shiftDown = glfwGetKey(m_view->m_window, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS;
+	if (!shiftDown)
+	{
+		m_model->Command_Release_Key(button);
+	}
+}
+
+void ViewModel::Event_Press_Mouse(int button)
+{
+	if (button == GLFW_MOUSE_BUTTON_LEFT)
+	{
+		bool shiftDown = glfwGetKey(m_view->m_window, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS;
+		if (!shiftDown)
+		{
+			m_model->Command_Press_Mouse_Left(m_view->GetCursorPosition());
+		}
+	}
+}
+
+void ViewModel::Event_Release_Mouse(int button)
+{
+	if (button == GLFW_MOUSE_BUTTON_LEFT)
+	{
+		bool shiftDown = glfwGetKey(m_view->m_window, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS;
+		if (!shiftDown)
+		{
+			m_model->Command_Release_Mouse_Left(m_view->GetCursorPosition());
+		}
+	}
+}
+
+void ViewModel::Event_Move_Cursor(float x, float y)
+{
+	b3Vec2 ps;
+	ps.Set(x, y);
+
+	b3Vec2 dp = ps - m_view->m_ps0;
+
+	float32 ndx = b3Clamp(dp.x, -1.0f, 1.0f);
+	float32 ndy = b3Clamp(dp.y, -1.0f, 1.0f);
+
+	bool shiftDown = glfwGetKey(m_view->m_window, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS;
+	bool leftDown = glfwGetMouseButton(m_view->m_window, GLFW_MOUSE_BUTTON_LEFT) == GLFW_PRESS;
+	bool rightDown = glfwGetMouseButton(m_view->m_window, GLFW_MOUSE_BUTTON_RIGHT) == GLFW_PRESS;
+
+	if (shiftDown)
+	{
+		if (leftDown)
+		{
+			float32 ax = -0.005f * B3_PI * ndx;
+			float32 ay = -0.005f * B3_PI * ndy;
+
+			m_model->Command_RotateCameraY(ax);
+			m_model->Command_RotateCameraX(ay);
+		}
+
+		if (rightDown)
+		{
+			float32 tx = 0.2f * ndx;
+			float32 ty = -0.2f * ndy;
+
+			m_model->Command_TranslateCameraX(tx);
+			m_model->Command_TranslateCameraY(ty);
+		}
+	}
+	else
+	{
+		m_model->Command_Move_Cursor(m_view->GetCursorPosition());
+	}
+}
+
+void ViewModel::Event_Scroll(float dx, float dy)
+{
+	bool shiftDown = glfwGetKey(m_view->m_window, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS;
+	if (shiftDown)
+	{
+		float32 ny = b3Clamp(dy, -1.0f, 1.0f);
+		m_model->Command_ZoomCamera(1.0f * ny);
+	}
+}