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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "vk/GrVkVulkan.h"
#include "Window_win.h"
#include <tchar.h>
#include <windows.h>
#include <windowsx.h>
#include "SkUtils.h"
#include "../WindowContext.h"
#include "WindowContextFactory_win.h"
#ifdef SK_VULKAN
#include "../VulkanWindowContext.h"
#endif
namespace sk_app {
static int gWindowX = CW_USEDEFAULT;
static int gWindowY = 0;
static int gWindowWidth = CW_USEDEFAULT;
static int gWindowHeight = 0;
Window* Window::CreateNativeWindow(void* platformData) {
HINSTANCE hInstance = (HINSTANCE)platformData;
Window_win* window = new Window_win();
if (!window->init(hInstance)) {
delete window;
return nullptr;
}
return window;
}
void Window_win::closeWindow() {
RECT r;
if (GetWindowRect(fHWnd, &r)) {
gWindowX = r.left;
gWindowY = r.top;
gWindowWidth = r.right - r.left;
gWindowHeight = r.bottom - r.top;
}
DestroyWindow(fHWnd);
}
Window_win::~Window_win() {
this->closeWindow();
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
bool Window_win::init(HINSTANCE hInstance) {
fHInstance = hInstance ? hInstance : GetModuleHandle(nullptr);
// The main window class name
static const TCHAR gSZWindowClass[] = _T("SkiaApp");
static WNDCLASSEX wcex;
static bool wcexInit = false;
if (!wcexInit) {
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
wcex.lpfnWndProc = WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = fHInstance;
wcex.hIcon = LoadIcon(fHInstance, (LPCTSTR)IDI_WINLOGO);
wcex.hCursor = LoadCursor(nullptr, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wcex.lpszMenuName = nullptr;
wcex.lpszClassName = gSZWindowClass;
wcex.hIconSm = LoadIcon(fHInstance, (LPCTSTR)IDI_WINLOGO);
if (!RegisterClassEx(&wcex)) {
return false;
}
wcexInit = true;
}
/*
if (fullscreen)
{
DEVMODE dmScreenSettings;
// If full screen set the screen to maximum size of the users desktop and 32bit.
memset(&dmScreenSettings, 0, sizeof(dmScreenSettings));
dmScreenSettings.dmSize = sizeof(dmScreenSettings);
dmScreenSettings.dmPelsWidth = (unsigned long)width;
dmScreenSettings.dmPelsHeight = (unsigned long)height;
dmScreenSettings.dmBitsPerPel = 32;
dmScreenSettings.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
// Change the display settings to full screen.
ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN);
// Set the position of the window to the top left corner.
posX = posY = 0;
}
*/
// gIsFullscreen = fullscreen;
fHWnd = CreateWindow(gSZWindowClass, nullptr, WS_OVERLAPPEDWINDOW,
gWindowX, gWindowY, gWindowWidth, gWindowHeight,
nullptr, nullptr, fHInstance, nullptr);
if (!fHWnd)
{
return false;
}
SetWindowLongPtr(fHWnd, GWLP_USERDATA, (LONG_PTR)this);
RegisterTouchWindow(fHWnd, 0);
return true;
}
static Window::Key get_key(WPARAM vk) {
static const struct {
WPARAM fVK;
Window::Key fKey;
} gPair[] = {
{ VK_BACK, Window::Key::kBack },
{ VK_CLEAR, Window::Key::kBack },
{ VK_RETURN, Window::Key::kOK },
{ VK_UP, Window::Key::kUp },
{ VK_DOWN, Window::Key::kDown },
{ VK_LEFT, Window::Key::kLeft },
{ VK_RIGHT, Window::Key::kRight },
{ VK_TAB, Window::Key::kTab },
{ VK_PRIOR, Window::Key::kPageUp },
{ VK_NEXT, Window::Key::kPageDown },
{ VK_HOME, Window::Key::kHome },
{ VK_END, Window::Key::kEnd },
{ VK_DELETE, Window::Key::kDelete },
{ VK_ESCAPE, Window::Key::kEscape },
{ VK_SHIFT, Window::Key::kShift },
{ VK_CONTROL, Window::Key::kCtrl },
{ VK_MENU, Window::Key::kOption },
{ 'A', Window::Key::kA },
{ 'C', Window::Key::kC },
{ 'V', Window::Key::kV },
{ 'X', Window::Key::kX },
{ 'Y', Window::Key::kY },
{ 'Z', Window::Key::kZ },
};
for (size_t i = 0; i < SK_ARRAY_COUNT(gPair); i++) {
if (gPair[i].fVK == vk) {
return gPair[i].fKey;
}
}
return Window::Key::kNONE;
}
static uint32_t get_modifiers(UINT message, WPARAM wParam, LPARAM lParam) {
uint32_t modifiers = 0;
switch (message) {
case WM_UNICHAR:
case WM_CHAR:
if (0 == (lParam & (1 << 30))) {
modifiers |= Window::kFirstPress_ModifierKey;
}
if (lParam & (1 << 29)) {
modifiers |= Window::kOption_ModifierKey;
}
break;
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
if (0 == (lParam & (1 << 30))) {
modifiers |= Window::kFirstPress_ModifierKey;
}
if (lParam & (1 << 29)) {
modifiers |= Window::kOption_ModifierKey;
}
break;
case WM_KEYUP:
case WM_SYSKEYUP:
if (lParam & (1 << 29)) {
modifiers |= Window::kOption_ModifierKey;
}
break;
case WM_LBUTTONDOWN:
case WM_LBUTTONUP:
case WM_MOUSEMOVE:
case WM_MOUSEWHEEL:
if (wParam & MK_CONTROL) {
modifiers |= Window::kControl_ModifierKey;
}
if (wParam & MK_SHIFT) {
modifiers |= Window::kShift_ModifierKey;
}
break;
}
return modifiers;
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
PAINTSTRUCT ps;
HDC hdc;
Window_win* window = (Window_win*) GetWindowLongPtr(hWnd, GWLP_USERDATA);
bool eventHandled = false;
switch (message) {
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
window->onPaint();
EndPaint(hWnd, &ps);
eventHandled = true;
break;
case WM_CLOSE:
PostQuitMessage(0);
eventHandled = true;
break;
case WM_ACTIVATE:
// disable/enable rendering here, depending on wParam != WA_INACTIVE
break;
case WM_SIZE:
window->onResize(LOWORD(lParam), HIWORD(lParam));
eventHandled = true;
break;
case WM_UNICHAR:
eventHandled = window->onChar((SkUnichar)wParam,
get_modifiers(message, wParam, lParam));
break;
case WM_CHAR: {
const uint16_t* c = reinterpret_cast<uint16_t*>(&wParam);
eventHandled = window->onChar(SkUTF16_NextUnichar(&c),
get_modifiers(message, wParam, lParam));
} break;
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
eventHandled = window->onKey(get_key(wParam), Window::kDown_InputState,
get_modifiers(message, wParam, lParam));
break;
case WM_KEYUP:
case WM_SYSKEYUP:
eventHandled = window->onKey(get_key(wParam), Window::kUp_InputState,
get_modifiers(message, wParam, lParam));
break;
case WM_LBUTTONDOWN:
case WM_LBUTTONUP: {
int xPos = GET_X_LPARAM(lParam);
int yPos = GET_Y_LPARAM(lParam);
//if (!gIsFullscreen)
//{
// RECT rc = { 0, 0, 640, 480 };
// AdjustWindowRect(&rc, WS_OVERLAPPEDWINDOW, FALSE);
// xPos -= rc.left;
// yPos -= rc.top;
//}
Window::InputState istate = ((wParam & MK_LBUTTON) != 0) ? Window::kDown_InputState
: Window::kUp_InputState;
eventHandled = window->onMouse(xPos, yPos, istate,
get_modifiers(message, wParam, lParam));
} break;
case WM_MOUSEMOVE: {
int xPos = GET_X_LPARAM(lParam);
int yPos = GET_Y_LPARAM(lParam);
//if (!gIsFullscreen)
//{
// RECT rc = { 0, 0, 640, 480 };
// AdjustWindowRect(&rc, WS_OVERLAPPEDWINDOW, FALSE);
// xPos -= rc.left;
// yPos -= rc.top;
//}
eventHandled = window->onMouse(xPos, yPos, Window::kMove_InputState,
get_modifiers(message, wParam, lParam));
} break;
case WM_MOUSEWHEEL:
eventHandled = window->onMouseWheel(GET_WHEEL_DELTA_WPARAM(wParam) > 0 ? +1.0f : -1.0f,
get_modifiers(message, wParam, lParam));
break;
case WM_TOUCH: {
uint16_t numInputs = LOWORD(wParam);
std::unique_ptr<TOUCHINPUT[]> inputs(new TOUCHINPUT[numInputs]);
if (GetTouchInputInfo((HTOUCHINPUT)lParam, numInputs, inputs.get(),
sizeof(TOUCHINPUT))) {
POINT topLeft = {0, 0};
ClientToScreen(hWnd, &topLeft);
for (uint16_t i = 0; i < numInputs; ++i) {
TOUCHINPUT ti = inputs[i];
Window::InputState state;
if (ti.dwFlags & TOUCHEVENTF_DOWN) {
state = Window::kDown_InputState;
} else if (ti.dwFlags & TOUCHEVENTF_MOVE) {
state = Window::kMove_InputState;
} else if (ti.dwFlags & TOUCHEVENTF_UP) {
state = Window::kUp_InputState;
} else {
continue;
}
// TOUCHINPUT coordinates are in 100ths of pixels
// Adjust for that, and make them window relative
LONG tx = (ti.x / 100) - topLeft.x;
LONG ty = (ti.y / 100) - topLeft.y;
eventHandled = window->onTouch(ti.dwID, state, tx, ty) || eventHandled;
}
}
} break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return eventHandled ? 0 : 1;
}
void Window_win::setTitle(const char* title) {
SetWindowTextA(fHWnd, title);
}
void Window_win::show() {
ShowWindow(fHWnd, SW_SHOW);
}
bool Window_win::attach(BackendType attachType) {
fBackend = attachType;
switch (attachType) {
case kNativeGL_BackendType:
fWindowContext = window_context_factory::NewGLForWin(fHWnd, fRequestedDisplayParams);
break;
#if SK_ANGLE
case kANGLE_BackendType:
fWindowContext = window_context_factory::NewANGLEForWin(fHWnd, fRequestedDisplayParams);
break;
#endif
case kRaster_BackendType:
fWindowContext = window_context_factory::NewRasterForWin(fHWnd,
fRequestedDisplayParams);
break;
#ifdef SK_VULKAN
case kVulkan_BackendType:
fWindowContext = window_context_factory::NewVulkanForWin(fHWnd,
fRequestedDisplayParams);
break;
#endif
}
this->onBackendCreated();
return (SkToBool(fWindowContext));
}
void Window_win::onInval() {
InvalidateRect(fHWnd, nullptr, false);
}
void Window_win::setRequestedDisplayParams(const DisplayParams& params, bool allowReattach) {
// GL on Windows doesn't let us change MSAA after the window is created
if (params.fMSAASampleCount != this->getRequestedDisplayParams().fMSAASampleCount
&& allowReattach) {
// Need to change these early, so attach() creates the window context correctly
fRequestedDisplayParams = params;
delete fWindowContext;
this->closeWindow();
this->init(fHInstance);
this->attach(fBackend);
}
INHERITED::setRequestedDisplayParams(params, allowReattach);
}
} // namespace sk_app