Initial commit

source/Platform/Win32/Win32Mouse.cpp

@@ -0,0 +1,115 @@
+
+#include <Windows.h>
+#include <Spectre/System/Log.h>
+#include <Spectre/Input/InputModule.h>
+#include "Win32MsgBuffer.h"
+#include "Win32Input.h"
+#include "Win32Mouse.h"
+
+static Win32MsgBuffer msg_buf;
+
+static Vector2f _normalizePos(int x, int y, RECT area) 
+{
+	Vector2f out;
+
+	out.x = x / ((float) (area.right - area.left));
+	out.y = y / ((float) (area.bottom - area.top));
+
+	return out;
+}
+
+static RECT GetClientArea(HWND hwnd) {
+
+	RECT rect;
+	GetClientRect(hwnd, &rect);
+	return rect;
+}
+
+void Win32Mouse::init()
+{
+	memset(m_state, 0, MouseButton::NUM_MBUTTONS);
+	m_tracked = false;
+}
+
+Vector2f Win32Mouse::getPosition() const
+{
+	return m_position;
+}
+
+bool Win32Mouse::isButtonDown(MouseButton::Type button) const
+{
+	return m_state[button];
+}
+
+void Win32Mouse::update(InputModule *input)
+{
+	// TODO: Clean this.
+	for(int i = 0; i < msg_buf.index; i++) {
+
+		MSG msg = msg_buf.messages[i];
+
+		if (msg.message == WM_LBUTTONDOWN || msg.message == WM_LBUTTONUP) {
+			InputEvent event(InputEvent::MouseButton);
+
+			event.mouseButton.button = MouseButton::Left;
+			event.mouseButton.pressed = msg.message == WM_LBUTTONDOWN;
+
+			m_state[MouseButton::Left] = event.mouseButton.pressed;
+			input->postInputEvent(event);
+		} else if (msg.message == WM_RBUTTONDOWN || msg.message == WM_RBUTTONUP) {
+			InputEvent event(InputEvent::MouseButton);
+
+			event.mouseButton.button = MouseButton::Right;
+			event.mouseButton.pressed = msg.message == WM_RBUTTONDOWN;
+
+			m_state[MouseButton::Right] = event.mouseButton.pressed;
+			input->postInputEvent(event);
+		} else if (msg.message == WM_MBUTTONDOWN || msg.message == WM_MBUTTONUP) {
+			InputEvent event(InputEvent::MouseButton);
+
+			event.mouseButton.button = MouseButton::Middle;
+			event.mouseButton.pressed = msg.message == WM_MBUTTONDOWN;
+
+			m_state[MouseButton::Middle] = event.mouseButton.pressed;
+			input->postInputEvent(event);
+
+		} else if (msg.message == WM_XBUTTONDOWN || msg.message == WM_XBUTTONUP) { 
+		
+			int btn = GET_XBUTTON_WPARAM(msg.wParam);
+			InputEvent event(InputEvent::MouseButton);
+
+			event.mouseButton.button = btn == XBUTTON1 ? MouseButton::Button1 : MouseButton::Button2;
+			event.mouseButton.pressed = msg.message == WM_XBUTTONDOWN;
+
+			m_state[MouseButton::Button1] = event.mouseButton.pressed;
+			input->postInputEvent(event);
+
+		} else if (msg.message == WM_MOUSEMOVE) {
+
+			InputEvent event(InputEvent::MousePosition);
+			RECT area = GetClientArea(msg.hwnd);
+			
+			int x = LOWORD(msg.lParam);
+			int y = HIWORD(msg.lParam);
+
+			// Do not forward the message if mouse is outside client area.
+			if ((x < area.left) || (x > area.right) || (y < area.top) || (y > area.bottom)) {
+				continue;
+			}
+
+			event.mouse.x = x;
+			event.mouse.y = y;
+
+			input->postInputEvent(event);
+
+			m_position = _normalizePos(x, y, area);
+		}
+	}
+
+	msg_buf.index = 0;
+}
+
+bool Win32Mouse::handleMessage(MSG message)
+{
+	return msg_buf.postMessage(message);
+}