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WindowImplWin32.cpp
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WindowImplWin32.cpp
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////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2017 Laurent Gomila (laurent@sfml-dev.org)
//
// 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.
//
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#ifdef _WIN32_WINDOWS
#undef _WIN32_WINDOWS
#endif
#ifdef _WIN32_WINNT
#undef _WIN32_WINNT
#endif
#define _WIN32_WINDOWS 0x0501
#define _WIN32_WINNT 0x0501
#define WINVER 0x0501
#include <SFML/Window/Win32/WindowImplWin32.hpp>
#include <SFML/Window/WindowStyle.hpp>
#include <GL/gl.h>
#include <SFML/System/Err.hpp>
#include <SFML/System/Utf.hpp>
#include <vector>
#include <cstring>
// MinGW lacks the definition of some Win32 constants
#ifndef XBUTTON1
#define XBUTTON1 0x0001
#endif
#ifndef XBUTTON2
#define XBUTTON2 0x0002
#endif
#ifndef WM_MOUSEHWHEEL
#define WM_MOUSEHWHEEL 0x020E
#endif
#ifndef MAPVK_VK_TO_VSC
#define MAPVK_VK_TO_VSC (0)
#endif
// Avoid including <Dbt.h> just for one define
#ifndef DBT_DEVNODES_CHANGED
#define DBT_DEVNODES_CHANGED 0x0007
#endif
namespace
{
unsigned int windowCount = 0; // Windows owned by SFML
unsigned int handleCount = 0; // All window handles
const wchar_t* className = L"SFML_Window";
sf::priv::WindowImplWin32* fullscreenWindow = NULL;
void setProcessDpiAware()
{
// Try SetProcessDpiAwareness first
HINSTANCE shCoreDll = LoadLibrary(L"Shcore.dll");
if (shCoreDll)
{
enum ProcessDpiAwareness
{
ProcessDpiUnaware = 0,
ProcessSystemDpiAware = 1,
ProcessPerMonitorDpiAware = 2
};
typedef HRESULT (WINAPI* SetProcessDpiAwarenessFuncType)(ProcessDpiAwareness);
SetProcessDpiAwarenessFuncType SetProcessDpiAwarenessFunc = reinterpret_cast<SetProcessDpiAwarenessFuncType>(GetProcAddress(shCoreDll, "SetProcessDpiAwareness"));
if (SetProcessDpiAwarenessFunc)
{
// We only check for E_INVALIDARG because we would get
// E_ACCESSDENIED if the DPI was already set previously
// and S_OK means the call was successful
if (SetProcessDpiAwarenessFunc(ProcessSystemDpiAware) == E_INVALIDARG)
{
sf::err() << "Failed to set process DPI awareness" << std::endl;
}
else
{
FreeLibrary(shCoreDll);
return;
}
}
FreeLibrary(shCoreDll);
}
// Fall back to SetProcessDPIAware if SetProcessDpiAwareness
// is not available on this system
HINSTANCE user32Dll = LoadLibrary(L"user32.dll");
if (user32Dll)
{
typedef BOOL (WINAPI* SetProcessDPIAwareFuncType)(void);
SetProcessDPIAwareFuncType SetProcessDPIAwareFunc = reinterpret_cast<SetProcessDPIAwareFuncType>(GetProcAddress(user32Dll, "SetProcessDPIAware"));
if (SetProcessDPIAwareFunc)
{
if (!SetProcessDPIAwareFunc())
sf::err() << "Failed to set process DPI awareness" << std::endl;
}
FreeLibrary(user32Dll);
}
}
}
namespace sf
{
namespace priv
{
////////////////////////////////////////////////////////////
WindowImplWin32::WindowImplWin32(WindowHandle handle) :
m_handle (handle),
m_callback (0),
m_cursorVisible (true), // might need to call GetCursorInfo
m_lastCursor (LoadCursor(NULL, IDC_ARROW)),
m_icon (NULL),
m_keyRepeatEnabled(true),
m_lastSize (0, 0),
m_resizing (false),
m_surrogate (0),
m_mouseInside (false),
m_fullscreen (false),
m_cursorGrabbed (false)
{
// Set that this process is DPI aware and can handle DPI scaling
setProcessDpiAware();
if (m_handle)
{
// If we're the first window handle, we only need to poll for joysticks when WM_DEVICECHANGE message is received
if (handleCount == 0)
JoystickImpl::setLazyUpdates(true);
++handleCount;
// We change the event procedure of the control (it is important to save the old one)
SetWindowLongPtrW(m_handle, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(this));
m_callback = SetWindowLongPtrW(m_handle, GWLP_WNDPROC, reinterpret_cast<LONG_PTR>(&WindowImplWin32::globalOnEvent));
}
}
////////////////////////////////////////////////////////////
WindowImplWin32::WindowImplWin32(VideoMode mode, const String& title, Uint32 style, const ContextSettings& /*settings*/) :
m_handle (NULL),
m_callback (0),
m_cursorVisible (true), // might need to call GetCursorInfo
m_lastCursor (LoadCursor(NULL, IDC_ARROW)),
m_icon (NULL),
m_keyRepeatEnabled(true),
m_lastSize (mode.width, mode.height),
m_resizing (false),
m_surrogate (0),
m_mouseInside (false),
m_fullscreen (style & Style::Fullscreen),
m_cursorGrabbed (m_fullscreen)
{
// Set that this process is DPI aware and can handle DPI scaling
setProcessDpiAware();
// Register the window class at first call
if (windowCount == 0)
registerWindowClass();
// Compute position and size
HDC screenDC = GetDC(NULL);
int left = (GetDeviceCaps(screenDC, HORZRES) - static_cast<int>(mode.width)) / 2;
int top = (GetDeviceCaps(screenDC, VERTRES) - static_cast<int>(mode.height)) / 2;
int width = mode.width;
int height = mode.height;
ReleaseDC(NULL, screenDC);
// Choose the window style according to the Style parameter
DWORD win32Style = WS_VISIBLE;
if (style == Style::None)
{
win32Style |= WS_POPUP;
}
else
{
if (style & Style::Titlebar) win32Style |= WS_CAPTION | WS_MINIMIZEBOX;
if (style & Style::Resize) win32Style |= WS_THICKFRAME | WS_MAXIMIZEBOX;
if (style & Style::Close) win32Style |= WS_SYSMENU;
}
// In windowed mode, adjust width and height so that window will have the requested client area
if (!m_fullscreen)
{
RECT rectangle = {0, 0, width, height};
AdjustWindowRect(&rectangle, win32Style, false);
width = rectangle.right - rectangle.left;
height = rectangle.bottom - rectangle.top;
}
// Create the window
m_handle = CreateWindowW(className, title.toWideString().c_str(), win32Style, left, top, width, height, NULL, NULL, GetModuleHandle(NULL), this);
// If we're the first window handle, we only need to poll for joysticks when WM_DEVICECHANGE message is received
if (m_handle)
{
if (handleCount == 0)
JoystickImpl::setLazyUpdates(true);
++handleCount;
}
// By default, the OS limits the size of the window the the desktop size,
// we have to resize it after creation to apply the real size
setSize(Vector2u(mode.width, mode.height));
// Switch to fullscreen if requested
if (m_fullscreen)
switchToFullscreen(mode);
// Increment window count
windowCount++;
}
////////////////////////////////////////////////////////////
WindowImplWin32::~WindowImplWin32()
{
// TODO should we restore the cursor shape and visibility?
// Destroy the custom icon, if any
if (m_icon)
DestroyIcon(m_icon);
// If it's the last window handle we have to poll for joysticks again
if (m_handle)
{
--handleCount;
if (handleCount == 0)
JoystickImpl::setLazyUpdates(false);
}
if (!m_callback)
{
// Destroy the window
if (m_handle)
DestroyWindow(m_handle);
// Decrement the window count
windowCount--;
// Unregister window class if we were the last window
if (windowCount == 0)
UnregisterClassW(className, GetModuleHandleW(NULL));
}
else
{
// The window is external: remove the hook on its message callback
SetWindowLongPtrW(m_handle, GWLP_WNDPROC, m_callback);
}
}
////////////////////////////////////////////////////////////
WindowHandle WindowImplWin32::getSystemHandle() const
{
return m_handle;
}
////////////////////////////////////////////////////////////
void WindowImplWin32::processEvents()
{
// We process the window events only if we own it
if (!m_callback)
{
MSG message;
while (PeekMessageW(&message, NULL, 0, 0, PM_REMOVE))
{
TranslateMessage(&message);
DispatchMessageW(&message);
}
}
}
////////////////////////////////////////////////////////////
Vector2i WindowImplWin32::getPosition() const
{
RECT rect;
GetWindowRect(m_handle, &rect);
return Vector2i(rect.left, rect.top);
}
////////////////////////////////////////////////////////////
void WindowImplWin32::setPosition(const Vector2i& position)
{
SetWindowPos(m_handle, NULL, position.x, position.y, 0, 0, SWP_NOSIZE | SWP_NOZORDER);
if(m_cursorGrabbed)
grabCursor(true);
}
////////////////////////////////////////////////////////////
Vector2u WindowImplWin32::getSize() const
{
RECT rect;
GetClientRect(m_handle, &rect);
return Vector2u(rect.right - rect.left, rect.bottom - rect.top);
}
////////////////////////////////////////////////////////////
void WindowImplWin32::setSize(const Vector2u& size)
{
// SetWindowPos wants the total size of the window (including title bar and borders),
// so we have to compute it
RECT rectangle = {0, 0, static_cast<long>(size.x), static_cast<long>(size.y)};
AdjustWindowRect(&rectangle, GetWindowLong(m_handle, GWL_STYLE), false);
int width = rectangle.right - rectangle.left;
int height = rectangle.bottom - rectangle.top;
SetWindowPos(m_handle, NULL, 0, 0, width, height, SWP_NOMOVE | SWP_NOZORDER);
}
////////////////////////////////////////////////////////////
void WindowImplWin32::setTitle(const String& title)
{
SetWindowTextW(m_handle, title.toWideString().c_str());
}
////////////////////////////////////////////////////////////
void WindowImplWin32::setIcon(unsigned int width, unsigned int height, const Uint8* pixels)
{
// First destroy the previous one
if (m_icon)
DestroyIcon(m_icon);
// Windows wants BGRA pixels: swap red and blue channels
std::vector<Uint8> iconPixels(width * height * 4);
for (std::size_t i = 0; i < iconPixels.size() / 4; ++i)
{
iconPixels[i * 4 + 0] = pixels[i * 4 + 2];
iconPixels[i * 4 + 1] = pixels[i * 4 + 1];
iconPixels[i * 4 + 2] = pixels[i * 4 + 0];
iconPixels[i * 4 + 3] = pixels[i * 4 + 3];
}
// Create the icon from the pixel array
m_icon = CreateIcon(GetModuleHandleW(NULL), width, height, 1, 32, NULL, &iconPixels[0]);
// Set it as both big and small icon of the window
if (m_icon)
{
SendMessageW(m_handle, WM_SETICON, ICON_BIG, (LPARAM)m_icon);
SendMessageW(m_handle, WM_SETICON, ICON_SMALL, (LPARAM)m_icon);
}
else
{
err() << "Failed to set the window's icon" << std::endl;
}
}
////////////////////////////////////////////////////////////
void WindowImplWin32::setVisible(bool visible)
{
ShowWindow(m_handle, visible ? SW_SHOW : SW_HIDE);
}
////////////////////////////////////////////////////////////
void WindowImplWin32::setMouseCursorVisible(bool visible)
{
// Don't call twice ShowCursor with the same parameter value;
// we don't want to increment/decrement the internal counter
// more than once.
if (visible != m_cursorVisible)
{
m_cursorVisible = visible;
ShowCursor(visible);
}
}
////////////////////////////////////////////////////////////
void WindowImplWin32::setMouseCursorGrabbed(bool grabbed)
{
m_cursorGrabbed = grabbed;
grabCursor(m_cursorGrabbed);
}
////////////////////////////////////////////////////////////
void WindowImplWin32::setMouseCursor(const CursorImpl& cursor)
{
m_lastCursor = cursor.m_cursor;
SetCursor(m_lastCursor);
}
////////////////////////////////////////////////////////////
void WindowImplWin32::setKeyRepeatEnabled(bool enabled)
{
m_keyRepeatEnabled = enabled;
}
////////////////////////////////////////////////////////////
void WindowImplWin32::requestFocus()
{
// Allow focus stealing only within the same process; compare PIDs of current and foreground window
DWORD thisPid = GetWindowThreadProcessId(m_handle, NULL);
DWORD foregroundPid = GetWindowThreadProcessId(GetForegroundWindow(), NULL);
if (thisPid == foregroundPid)
{
// The window requesting focus belongs to the same process as the current window: steal focus
SetForegroundWindow(m_handle);
}
else
{
// Different process: don't steal focus, but create a taskbar notification ("flash")
FLASHWINFO info;
info.cbSize = sizeof(info);
info.hwnd = m_handle;
info.dwFlags = FLASHW_TRAY;
info.dwTimeout = 0;
info.uCount = 3;
FlashWindowEx(&info);
}
}
////////////////////////////////////////////////////////////
bool WindowImplWin32::hasFocus() const
{
return m_handle == GetForegroundWindow();
}
////////////////////////////////////////////////////////////
void WindowImplWin32::registerWindowClass()
{
WNDCLASSW windowClass;
windowClass.style = 0;
windowClass.lpfnWndProc = &WindowImplWin32::globalOnEvent;
windowClass.cbClsExtra = 0;
windowClass.cbWndExtra = 0;
windowClass.hInstance = GetModuleHandleW(NULL);
windowClass.hIcon = NULL;
windowClass.hCursor = 0;
windowClass.hbrBackground = 0;
windowClass.lpszMenuName = NULL;
windowClass.lpszClassName = className;
RegisterClassW(&windowClass);
}
////////////////////////////////////////////////////////////
void WindowImplWin32::switchToFullscreen(const VideoMode& mode)
{
DEVMODE devMode;
devMode.dmSize = sizeof(devMode);
devMode.dmPelsWidth = mode.width;
devMode.dmPelsHeight = mode.height;
devMode.dmBitsPerPel = mode.bitsPerPixel;
devMode.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL;
// Apply fullscreen mode
if (ChangeDisplaySettingsW(&devMode, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL)
{
err() << "Failed to change display mode for fullscreen" << std::endl;
return;
}
// Make the window flags compatible with fullscreen mode
SetWindowLongW(m_handle, GWL_STYLE, WS_POPUP | WS_CLIPCHILDREN | WS_CLIPSIBLINGS);
SetWindowLongW(m_handle, GWL_EXSTYLE, WS_EX_APPWINDOW);
// Resize the window so that it fits the entire screen
SetWindowPos(m_handle, HWND_TOP, 0, 0, mode.width, mode.height, SWP_FRAMECHANGED);
ShowWindow(m_handle, SW_SHOW);
// Set "this" as the current fullscreen window
fullscreenWindow = this;
}
////////////////////////////////////////////////////////////
void WindowImplWin32::cleanup()
{
// Restore the previous video mode (in case we were running in fullscreen)
if (fullscreenWindow == this)
{
ChangeDisplaySettingsW(NULL, 0);
fullscreenWindow = NULL;
}
// Unhide the mouse cursor (in case it was hidden)
setMouseCursorVisible(true);
// No longer track the cursor
setTracking(false);
// No longer capture the cursor
ReleaseCapture();
}
////////////////////////////////////////////////////////////
void WindowImplWin32::setTracking(bool track)
{
TRACKMOUSEEVENT mouseEvent;
mouseEvent.cbSize = sizeof(TRACKMOUSEEVENT);
mouseEvent.dwFlags = track ? TME_LEAVE : TME_CANCEL;
mouseEvent.hwndTrack = m_handle;
mouseEvent.dwHoverTime = HOVER_DEFAULT;
TrackMouseEvent(&mouseEvent);
}
////////////////////////////////////////////////////////////
void WindowImplWin32::grabCursor(bool grabbed)
{
if (grabbed)
{
RECT rect;
GetClientRect(m_handle, &rect);
MapWindowPoints(m_handle, NULL, reinterpret_cast<LPPOINT>(&rect), 2);
ClipCursor(&rect);
}
else
{
ClipCursor(NULL);
}
}
////////////////////////////////////////////////////////////
void WindowImplWin32::processEvent(UINT message, WPARAM wParam, LPARAM lParam)
{
// Don't process any message until window is created
if (m_handle == NULL)
return;
switch (message)
{
// Destroy event
case WM_DESTROY:
{
// Here we must cleanup resources !
cleanup();
break;
}
// Set cursor event
case WM_SETCURSOR:
{
// The mouse has moved, if the cursor is in our window we must refresh the cursor
if (LOWORD(lParam) == HTCLIENT)
SetCursor(m_lastCursor);
break;
}
// Close event
case WM_CLOSE:
{
Event event;
event.type = Event::Closed;
pushEvent(event);
break;
}
// Resize event
case WM_SIZE:
{
// Consider only events triggered by a maximize or a un-maximize
if (wParam != SIZE_MINIMIZED && !m_resizing && m_lastSize != getSize())
{
// Update the last handled size
m_lastSize = getSize();
// Push a resize event
Event event;
event.type = Event::Resized;
event.size.width = m_lastSize.x;
event.size.height = m_lastSize.y;
pushEvent(event);
// Restore/update cursor grabbing
grabCursor(m_cursorGrabbed);
}
break;
}
// Start resizing
case WM_ENTERSIZEMOVE:
{
m_resizing = true;
grabCursor(false);
break;
}
// Stop resizing
case WM_EXITSIZEMOVE:
{
m_resizing = false;
// Ignore cases where the window has only been moved
if(m_lastSize != getSize())
{
// Update the last handled size
m_lastSize = getSize();
// Push a resize event
Event event;
event.type = Event::Resized;
event.size.width = m_lastSize.x;
event.size.height = m_lastSize.y;
pushEvent(event);
}
// Restore/update cursor grabbing
grabCursor(m_cursorGrabbed);
break;
}
// The system request the min/max window size and position
case WM_GETMINMAXINFO:
{
// We override the returned information to remove the default limit
// (the OS doesn't allow windows bigger than the desktop by default)
MINMAXINFO* info = reinterpret_cast<MINMAXINFO*>(lParam);
info->ptMaxTrackSize.x = 50000;
info->ptMaxTrackSize.y = 50000;
break;
}
// Gain focus event
case WM_SETFOCUS:
{
// Restore cursor grabbing
grabCursor(m_cursorGrabbed);
Event event;
event.type = Event::GainedFocus;
pushEvent(event);
break;
}
// Lost focus event
case WM_KILLFOCUS:
{
// Ungrab the cursor
grabCursor(false);
Event event;
event.type = Event::LostFocus;
pushEvent(event);
break;
}
// Text event
case WM_CHAR:
{
if (m_keyRepeatEnabled || ((lParam & (1 << 30)) == 0))
{
// Get the code of the typed character
Uint32 character = static_cast<Uint32>(wParam);
// Check if it is the first part of a surrogate pair, or a regular character
if ((character >= 0xD800) && (character <= 0xDBFF))
{
// First part of a surrogate pair: store it and wait for the second one
m_surrogate = static_cast<Uint16>(character);
}
else
{
// Check if it is the second part of a surrogate pair, or a regular character
if ((character >= 0xDC00) && (character <= 0xDFFF))
{
// Convert the UTF-16 surrogate pair to a single UTF-32 value
Uint16 utf16[] = {m_surrogate, static_cast<Uint16>(character)};
sf::Utf16::toUtf32(utf16, utf16 + 2, &character);
m_surrogate = 0;
}
// Send a TextEntered event
Event event;
event.type = Event::TextEntered;
event.text.unicode = character;
pushEvent(event);
}
}
break;
}
// Keydown event
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
{
if (m_keyRepeatEnabled || ((HIWORD(lParam) & KF_REPEAT) == 0))
{
Event event;
event.type = Event::KeyPressed;
event.key.alt = HIWORD(GetAsyncKeyState(VK_MENU)) != 0;
event.key.control = HIWORD(GetAsyncKeyState(VK_CONTROL)) != 0;
event.key.shift = HIWORD(GetAsyncKeyState(VK_SHIFT)) != 0;
event.key.system = HIWORD(GetAsyncKeyState(VK_LWIN)) || HIWORD(GetAsyncKeyState(VK_RWIN));
event.key.code = virtualKeyCodeToSF(wParam, lParam);
pushEvent(event);
}
break;
}
// Keyup event
case WM_KEYUP:
case WM_SYSKEYUP:
{
Event event;
event.type = Event::KeyReleased;
event.key.alt = HIWORD(GetAsyncKeyState(VK_MENU)) != 0;
event.key.control = HIWORD(GetAsyncKeyState(VK_CONTROL)) != 0;
event.key.shift = HIWORD(GetAsyncKeyState(VK_SHIFT)) != 0;
event.key.system = HIWORD(GetAsyncKeyState(VK_LWIN)) || HIWORD(GetAsyncKeyState(VK_RWIN));
event.key.code = virtualKeyCodeToSF(wParam, lParam);
pushEvent(event);
break;
}
// Vertical mouse wheel event
case WM_MOUSEWHEEL:
{
// Mouse position is in screen coordinates, convert it to window coordinates
POINT position;
position.x = static_cast<Int16>(LOWORD(lParam));
position.y = static_cast<Int16>(HIWORD(lParam));
ScreenToClient(m_handle, &position);
Int16 delta = static_cast<Int16>(HIWORD(wParam));
Event event;
event.type = Event::MouseWheelMoved;
event.mouseWheel.delta = delta / 120;
event.mouseWheel.x = position.x;
event.mouseWheel.y = position.y;
pushEvent(event);
event.type = Event::MouseWheelScrolled;
event.mouseWheelScroll.wheel = Mouse::VerticalWheel;
event.mouseWheelScroll.delta = static_cast<float>(delta) / 120.f;
event.mouseWheelScroll.x = position.x;
event.mouseWheelScroll.y = position.y;
pushEvent(event);
break;
}
// Horizontal mouse wheel event
case WM_MOUSEHWHEEL:
{
// Mouse position is in screen coordinates, convert it to window coordinates
POINT position;
position.x = static_cast<Int16>(LOWORD(lParam));
position.y = static_cast<Int16>(HIWORD(lParam));
ScreenToClient(m_handle, &position);
Int16 delta = static_cast<Int16>(HIWORD(wParam));
Event event;
event.type = Event::MouseWheelScrolled;
event.mouseWheelScroll.wheel = Mouse::HorizontalWheel;
event.mouseWheelScroll.delta = -static_cast<float>(delta) / 120.f;
event.mouseWheelScroll.x = position.x;
event.mouseWheelScroll.y = position.y;
pushEvent(event);
break;
}
// Mouse left button down event
case WM_LBUTTONDOWN:
{
Event event;
event.type = Event::MouseButtonPressed;
event.mouseButton.button = Mouse::Left;
event.mouseButton.x = static_cast<Int16>(LOWORD(lParam));
event.mouseButton.y = static_cast<Int16>(HIWORD(lParam));
pushEvent(event);
break;
}
// Mouse left button up event
case WM_LBUTTONUP:
{
Event event;
event.type = Event::MouseButtonReleased;
event.mouseButton.button = Mouse::Left;
event.mouseButton.x = static_cast<Int16>(LOWORD(lParam));
event.mouseButton.y = static_cast<Int16>(HIWORD(lParam));
pushEvent(event);
break;
}
// Mouse right button down event
case WM_RBUTTONDOWN:
{
Event event;
event.type = Event::MouseButtonPressed;
event.mouseButton.button = Mouse::Right;
event.mouseButton.x = static_cast<Int16>(LOWORD(lParam));
event.mouseButton.y = static_cast<Int16>(HIWORD(lParam));
pushEvent(event);
break;
}
// Mouse right button up event
case WM_RBUTTONUP:
{
Event event;
event.type = Event::MouseButtonReleased;
event.mouseButton.button = Mouse::Right;
event.mouseButton.x = static_cast<Int16>(LOWORD(lParam));
event.mouseButton.y = static_cast<Int16>(HIWORD(lParam));
pushEvent(event);
break;
}
// Mouse wheel button down event
case WM_MBUTTONDOWN:
{
Event event;
event.type = Event::MouseButtonPressed;
event.mouseButton.button = Mouse::Middle;
event.mouseButton.x = static_cast<Int16>(LOWORD(lParam));
event.mouseButton.y = static_cast<Int16>(HIWORD(lParam));
pushEvent(event);
break;
}
// Mouse wheel button up event
case WM_MBUTTONUP:
{
Event event;
event.type = Event::MouseButtonReleased;
event.mouseButton.button = Mouse::Middle;
event.mouseButton.x = static_cast<Int16>(LOWORD(lParam));
event.mouseButton.y = static_cast<Int16>(HIWORD(lParam));
pushEvent(event);
break;
}
// Mouse X button down event
case WM_XBUTTONDOWN:
{
Event event;
event.type = Event::MouseButtonPressed;
event.mouseButton.button = HIWORD(wParam) == XBUTTON1 ? Mouse::XButton1 : Mouse::XButton2;
event.mouseButton.x = static_cast<Int16>(LOWORD(lParam));
event.mouseButton.y = static_cast<Int16>(HIWORD(lParam));
pushEvent(event);
break;
}
// Mouse X button up event
case WM_XBUTTONUP:
{
Event event;
event.type = Event::MouseButtonReleased;
event.mouseButton.button = HIWORD(wParam) == XBUTTON1 ? Mouse::XButton1 : Mouse::XButton2;
event.mouseButton.x = static_cast<Int16>(LOWORD(lParam));
event.mouseButton.y = static_cast<Int16>(HIWORD(lParam));
pushEvent(event);
break;
}
// Mouse leave event
case WM_MOUSELEAVE:
{
// Avoid this firing a second time in case the cursor is dragged outside
if (m_mouseInside)
{
m_mouseInside = false;
// Generate a MouseLeft event
Event event;
event.type = Event::MouseLeft;
pushEvent(event);
}
break;
}
// Mouse move event
case WM_MOUSEMOVE:
{
// Extract the mouse local coordinates
int x = static_cast<Int16>(LOWORD(lParam));
int y = static_cast<Int16>(HIWORD(lParam));
// Get the client area of the window
RECT area;
GetClientRect(m_handle, &area);
// Capture the mouse in case the user wants to drag it outside
if ((wParam & (MK_LBUTTON | MK_MBUTTON | MK_RBUTTON | MK_XBUTTON1 | MK_XBUTTON2)) == 0)
{
// Only release the capture if we really have it
if (GetCapture() == m_handle)
ReleaseCapture();
}
else if (GetCapture() != m_handle)
{
// Set the capture to continue receiving mouse events
SetCapture(m_handle);
}
// If the cursor is outside the client area...
if ((x < area.left) || (x > area.right) || (y < area.top) || (y > area.bottom))
{
// and it used to be inside, the mouse left it.
if (m_mouseInside)
{
m_mouseInside = false;
// No longer care for the mouse leaving the window
setTracking(false);
// Generate a MouseLeft event
Event event;
event.type = Event::MouseLeft;
pushEvent(event);
}
}
else
{
// and vice-versa
if (!m_mouseInside)
{
m_mouseInside = true;
// Look for the mouse leaving the window
setTracking(true);
// Generate a MouseEntered event
Event event;
event.type = Event::MouseEntered;
pushEvent(event);
}
}
// Generate a MouseMove event
Event event;
event.type = Event::MouseMoved;
event.mouseMove.x = x;
event.mouseMove.y = y;
pushEvent(event);
break;
}
case WM_DEVICECHANGE:
{
// Some sort of device change has happened, update joystick connections
if (wParam == DBT_DEVNODES_CHANGED)
JoystickImpl::updateConnections();
break;
}
}
}
////////////////////////////////////////////////////////////
Keyboard::Key WindowImplWin32::virtualKeyCodeToSF(WPARAM key, LPARAM flags)
{
switch (key)
{
// Check the scancode to distinguish between left and right shift
case VK_SHIFT: