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guiwin.cpp
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1740 lines (1471 loc) · 61.6 KB
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//-----------------------------------------------------------------------------
// The Win32-based implementation of platform-dependent GUI functionality.
//
// Copyright 2018 whitequark
//-----------------------------------------------------------------------------
#include "config.h"
#include "solvespace.h"
// Include after solvespace.h to avoid identifier clashes.
#include <windows.h>
#include <windowsx.h>
#include <commctrl.h>
#include <commdlg.h>
#include <shellapi.h>
// Macros to compile under XP
#if !defined(LSTATUS)
# define LSTATUS LONG
#endif
#if !defined(MAPVK_VK_TO_CHAR)
# define MAPVK_VK_TO_CHAR 2
#endif
#if !defined(USER_DEFAULT_SCREEN_DPI)
# define USER_DEFAULT_SCREEN_DPI 96
#endif
#if !defined(TTM_POPUP)
# define TTM_POPUP (WM_USER + 34)
#endif
// End macros to compile under XP
#if !defined(WM_DPICHANGED)
# define WM_DPICHANGED 0x02E0
#endif
// These interfere with our identifiers.
#undef CreateWindow
#undef ERROR
#if HAVE_OPENGL == 3
# define EGLAPI /*static linkage*/
# define EGL_EGLEXT_PROTOTYPES
# include <EGL/egl.h>
# include <EGL/eglext.h>
#endif
#if defined(HAVE_SPACEWARE)
# include <si.h>
# include <siapp.h>
# undef uint32_t
#endif
#if defined(__GNUC__)
// Disable bogus warning emitted by GCC on GetProcAddress, since there seems to be no way
// of restructuring the code to easily disable it just at the call site.
#pragma GCC diagnostic ignored "-Wcast-function-type"
#endif
namespace SolveSpace {
namespace Platform {
//-----------------------------------------------------------------------------
// Windows API bridging
//-----------------------------------------------------------------------------
#define sscheck(expr) do { \
SetLastError(0); \
if(!(expr)) \
CheckLastError(__FILE__, __LINE__, __func__, #expr); \
} while(0)
void CheckLastError(const char *file, int line, const char *function, const char *expr) {
if(GetLastError() != S_OK) {
LPWSTR messageW;
FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
NULL, GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPWSTR)&messageW, 0, NULL);
std::string message;
message += ssprintf("File %s, line %u, function %s:\n", file, line, function);
message += ssprintf("Win32 API call failed: %s.\n", expr);
message += ssprintf("Error: %s", Narrow(messageW).c_str());
FatalError(message);
}
}
typedef UINT (WINAPI *LPFNGETDPIFORWINDOW)(HWND);
UINT ssGetDpiForWindow(HWND hwnd) {
static bool checked;
static LPFNGETDPIFORWINDOW lpfnGetDpiForWindow;
if(!checked) {
checked = true;
lpfnGetDpiForWindow = (LPFNGETDPIFORWINDOW)
GetProcAddress(GetModuleHandleW(L"user32.dll"), "GetDpiForWindow");
}
if(lpfnGetDpiForWindow) {
return lpfnGetDpiForWindow(hwnd);
} else {
HDC hDc;
sscheck(hDc = GetDC(HWND_DESKTOP));
UINT dpi;
sscheck(dpi = GetDeviceCaps(hDc, LOGPIXELSX));
sscheck(ReleaseDC(HWND_DESKTOP, hDc));
return dpi;
}
}
typedef BOOL (WINAPI *LPFNADJUSTWINDOWRECTEXFORDPI)(LPRECT, DWORD, BOOL, DWORD, UINT);
BOOL ssAdjustWindowRectExForDpi(LPRECT lpRect, DWORD dwStyle, BOOL bMenu,
DWORD dwExStyle, UINT dpi) {
static bool checked;
static LPFNADJUSTWINDOWRECTEXFORDPI lpfnAdjustWindowRectExForDpi;
if(!checked) {
checked = true;
lpfnAdjustWindowRectExForDpi = (LPFNADJUSTWINDOWRECTEXFORDPI)
GetProcAddress(GetModuleHandleW(L"user32.dll"), "AdjustWindowRectExForDpi");
}
if(lpfnAdjustWindowRectExForDpi) {
return lpfnAdjustWindowRectExForDpi(lpRect, dwStyle, bMenu, dwExStyle, dpi);
} else {
return AdjustWindowRectEx(lpRect, dwStyle, bMenu, dwExStyle);
}
}
//-----------------------------------------------------------------------------
// Utility functions
//-----------------------------------------------------------------------------
static std::wstring PrepareTitle(const std::string &s) {
return Widen("SolveSpace - " + s);
}
static std::string NegateMnemonics(const std::string &label) {
std::string newLabel;
for(char c : label) {
newLabel.push_back(c);
if(c == '&') newLabel.push_back(c);
}
return newLabel;
}
static int Clamp(int x, int a, int b, int brda, int brdb) {
// If we are outside of an edge of the monitor
// and a "border" is requested "move in" from that edge
// by "b/brdX" (the "b" parameter is the resolution)
if((x <= a) && (brda)) {
a += b / brda; // yes "b/brda" since b is the size
}
if(((x >= b) && brdb)) {
b -= b / brdb;
}
return max(a, min(x, b));
}
//-----------------------------------------------------------------------------
// Fatal errors
//-----------------------------------------------------------------------------
bool handlingFatalError = false;
void FatalError(const std::string &message) {
// Indicate that we're handling a fatal error, to avoid re-entering application code
// and potentially crashing even harder.
handlingFatalError = true;
switch(MessageBoxW(NULL, Platform::Widen(message + "\nGenerate debug report?").c_str(),
L"Fatal error — SolveSpace",
MB_ICONERROR|MB_TASKMODAL|MB_SETFOREGROUND|MB_TOPMOST|
MB_OKCANCEL|MB_DEFBUTTON2)) {
case IDOK:
abort();
case IDCANCEL:
default: {
WCHAR appPath[MAX_PATH] = {};
GetModuleFileNameW(NULL, appPath, sizeof(appPath));
ShellExecuteW(NULL, L"open", appPath, NULL, NULL, SW_SHOW);
_exit(1);
}
}
}
//-----------------------------------------------------------------------------
// Settings
//-----------------------------------------------------------------------------
class SettingsImplWin32 final : public Settings {
public:
HKEY hKey = NULL;
HKEY GetKey() {
if(hKey == NULL) {
sscheck(ERROR_SUCCESS == RegCreateKeyExW(HKEY_CURRENT_USER, L"Software\\SolveSpace", 0, NULL, 0,
KEY_ALL_ACCESS, NULL, &hKey, NULL));
}
return hKey;
}
~SettingsImplWin32() {
if(hKey != NULL) {
sscheck(ERROR_SUCCESS == RegCloseKey(hKey));
}
}
void FreezeInt(const std::string &key, uint32_t value) {
sscheck(ERROR_SUCCESS == RegSetValueExW(GetKey(), &Widen(key)[0], 0,
REG_DWORD, (const BYTE *)&value, sizeof(value)));
}
uint32_t ThawInt(const std::string &key, uint32_t defaultValue) {
DWORD value;
DWORD type, length = sizeof(value);
LSTATUS result = RegQueryValueExW(GetKey(), &Widen(key)[0], 0,
&type, (BYTE *)&value, &length);
if(result == ERROR_SUCCESS && type == REG_DWORD) {
return value;
}
return defaultValue;
}
void FreezeFloat(const std::string &key, double value) {
sscheck(ERROR_SUCCESS == RegSetValueExW(GetKey(), &Widen(key)[0], 0,
REG_QWORD, (const BYTE *)&value, sizeof(value)));
}
double ThawFloat(const std::string &key, double defaultValue) {
double value;
DWORD type, length = sizeof(value);
LSTATUS result = RegQueryValueExW(GetKey(), &Widen(key)[0], 0,
&type, (BYTE *)&value, &length);
if(result == ERROR_SUCCESS && type == REG_QWORD) {
return value;
}
return defaultValue;
}
void FreezeString(const std::string &key, const std::string &value) {
ssassert(value.length() == strlen(value.c_str()),
"illegal null byte in middle of a string setting");
std::wstring valueW = Widen(value);
sscheck(ERROR_SUCCESS == RegSetValueExW(GetKey(), &Widen(key)[0], 0,
REG_SZ, (const BYTE *)&valueW[0], (valueW.length() + 1) * 2));
}
std::string ThawString(const std::string &key, const std::string &defaultValue) {
DWORD type, length = 0;
LSTATUS result = RegQueryValueExW(GetKey(), &Widen(key)[0], 0,
&type, NULL, &length);
if(result == ERROR_SUCCESS && type == REG_SZ) {
std::wstring valueW;
valueW.resize(length / 2 - 1);
sscheck(ERROR_SUCCESS == RegQueryValueExW(GetKey(), &Widen(key)[0], 0,
&type, (BYTE *)&valueW[0], &length));
return Narrow(valueW);
}
return defaultValue;
}
};
SettingsRef GetSettings() {
return std::make_shared<SettingsImplWin32>();
}
//-----------------------------------------------------------------------------
// Timers
//-----------------------------------------------------------------------------
class TimerImplWin32 final : public Timer {
public:
static HWND WindowHandle() {
static HWND hTimerWnd;
if(hTimerWnd == NULL) {
sscheck(hTimerWnd = CreateWindowExW(0, L"Message", NULL, 0, 0, 0, 0, 0,
HWND_MESSAGE, NULL, NULL, NULL));
}
return hTimerWnd;
}
static void CALLBACK TimerFunc(HWND hwnd, UINT msg, UINT_PTR event, DWORD time) {
sscheck(KillTimer(WindowHandle(), event));
TimerImplWin32 *timer = (TimerImplWin32*)event;
if(timer->onTimeout) {
timer->onTimeout();
}
}
void RunAfter(unsigned milliseconds) override {
// FIXME(platform/gui): use SetCoalescableTimer when it's available (8+)
sscheck(SetTimer(WindowHandle(), (UINT_PTR)this,
milliseconds, &TimerImplWin32::TimerFunc));
}
~TimerImplWin32() {
// FIXME(platform/gui): there's a race condition here--WM_TIMER messages already
// posted to the queue are not removed, so this destructor is at most "best effort".
KillTimer(WindowHandle(), (UINT_PTR)this);
}
};
TimerRef CreateTimer() {
return std::make_shared<TimerImplWin32>();
}
//-----------------------------------------------------------------------------
// Menus
//-----------------------------------------------------------------------------
class MenuImplWin32;
class MenuItemImplWin32 final : public MenuItem {
public:
std::shared_ptr<MenuImplWin32> menu;
HMENU Handle();
MENUITEMINFOW GetInfo(UINT mask) {
MENUITEMINFOW mii = {};
mii.cbSize = sizeof(mii);
mii.fMask = mask;
sscheck(GetMenuItemInfoW(Handle(), (UINT_PTR)this, FALSE, &mii));
return mii;
}
void SetAccelerator(KeyboardEvent accel) override {
MENUITEMINFOW mii = GetInfo(MIIM_TYPE);
std::wstring nameW(mii.cch, L'\0');
mii.dwTypeData = &nameW[0];
mii.cch++;
sscheck(GetMenuItemInfoW(Handle(), (UINT_PTR)this, FALSE, &mii));
std::string name = Narrow(nameW);
if(name.find('\t') != std::string::npos) {
name = name.substr(0, name.find('\t'));
}
name += '\t';
name += AcceleratorDescription(accel);
nameW = Widen(name);
mii.fMask = MIIM_STRING;
mii.dwTypeData = &nameW[0];
sscheck(SetMenuItemInfoW(Handle(), (UINT_PTR)this, FALSE, &mii));
}
void SetIndicator(Indicator type) override {
MENUITEMINFOW mii = GetInfo(MIIM_FTYPE);
switch(type) {
case Indicator::NONE:
case Indicator::CHECK_MARK:
mii.fType &= ~MFT_RADIOCHECK;
break;
case Indicator::RADIO_MARK:
mii.fType |= MFT_RADIOCHECK;
break;
}
sscheck(SetMenuItemInfoW(Handle(), (UINT_PTR)this, FALSE, &mii));
}
void SetActive(bool active) override {
MENUITEMINFOW mii = GetInfo(MIIM_STATE);
if(active) {
mii.fState |= MFS_CHECKED;
} else {
mii.fState &= ~MFS_CHECKED;
}
sscheck(SetMenuItemInfoW(Handle(), (UINT_PTR)this, FALSE, &mii));
}
void SetEnabled(bool enabled) override {
MENUITEMINFOW mii = GetInfo(MIIM_STATE);
if(enabled) {
mii.fState &= ~(MFS_DISABLED|MFS_GRAYED);
} else {
mii.fState |= MFS_DISABLED|MFS_GRAYED;
}
sscheck(SetMenuItemInfoW(Handle(), (UINT_PTR)this, FALSE, &mii));
}
};
int64_t contextMenuPopTime = 0;
class MenuImplWin32 final : public Menu {
public:
HMENU hMenu;
std::weak_ptr<MenuImplWin32> weakThis;
std::vector<std::shared_ptr<MenuItemImplWin32>> menuItems;
std::vector<std::shared_ptr<MenuImplWin32>> subMenus;
MenuImplWin32() {
sscheck(hMenu = CreatePopupMenu());
}
MenuItemRef AddItem(const std::string &label,
std::function<void()> onTrigger = NULL,
bool mnemonics = true) override {
auto menuItem = std::make_shared<MenuItemImplWin32>();
menuItem->menu = weakThis.lock();
menuItem->onTrigger = onTrigger;
menuItems.push_back(menuItem);
sscheck(AppendMenuW(hMenu, MF_STRING, (UINT_PTR)menuItem.get(),
Widen(mnemonics ? label : NegateMnemonics(label)).c_str()));
// uID is just an UINT, which isn't large enough to hold a pointer on 64-bit Windows,
// so we use dwItemData, which is.
MENUITEMINFOW mii = {};
mii.cbSize = sizeof(mii);
mii.fMask = MIIM_DATA;
mii.dwItemData = (LONG_PTR)menuItem.get();
sscheck(SetMenuItemInfoW(hMenu, (UINT_PTR)menuItem.get(), FALSE, &mii));
return menuItem;
}
MenuRef AddSubMenu(const std::string &label) override {
auto subMenu = std::make_shared<MenuImplWin32>();
subMenu->weakThis = subMenu;
subMenus.push_back(subMenu);
sscheck(AppendMenuW(hMenu, MF_STRING|MF_POPUP,
(UINT_PTR)subMenu->hMenu, Widen(label).c_str()));
return subMenu;
}
void AddSeparator() override {
sscheck(AppendMenuW(hMenu, MF_SEPARATOR, 0, L""));
}
void PopUp() override {
MENUINFO mi = {};
mi.cbSize = sizeof(mi);
mi.fMask = MIM_APPLYTOSUBMENUS|MIM_STYLE;
mi.dwStyle = MNS_NOTIFYBYPOS;
sscheck(SetMenuInfo(hMenu, &mi));
POINT pt;
sscheck(GetCursorPos(&pt));
sscheck(TrackPopupMenu(hMenu, TPM_TOPALIGN, pt.x, pt.y, 0, GetActiveWindow(), NULL));
contextMenuPopTime = GetMilliseconds();
}
void Clear() override {
for(int n = GetMenuItemCount(hMenu) - 1; n >= 0; n--) {
sscheck(RemoveMenu(hMenu, n, MF_BYPOSITION));
}
menuItems.clear();
subMenus.clear();
}
~MenuImplWin32() {
Clear();
sscheck(DestroyMenu(hMenu));
}
};
HMENU MenuItemImplWin32::Handle() {
return menu->hMenu;
}
MenuRef CreateMenu() {
auto menu = std::make_shared<MenuImplWin32>();
// std::enable_shared_from_this fails for some reason, not sure why
menu->weakThis = menu;
return menu;
}
class MenuBarImplWin32 final : public MenuBar {
public:
HMENU hMenuBar;
std::vector<std::shared_ptr<MenuImplWin32>> subMenus;
MenuBarImplWin32() {
sscheck(hMenuBar = ::CreateMenu());
}
MenuRef AddSubMenu(const std::string &label) override {
auto subMenu = std::make_shared<MenuImplWin32>();
subMenu->weakThis = subMenu;
subMenus.push_back(subMenu);
sscheck(AppendMenuW(hMenuBar, MF_STRING|MF_POPUP,
(UINT_PTR)subMenu->hMenu, Widen(label).c_str()));
return subMenu;
}
void Clear() override {
for(int n = GetMenuItemCount(hMenuBar) - 1; n >= 0; n--) {
sscheck(RemoveMenu(hMenuBar, n, MF_BYPOSITION));
}
subMenus.clear();
}
~MenuBarImplWin32() {
Clear();
sscheck(DestroyMenu(hMenuBar));
}
};
MenuBarRef GetOrCreateMainMenu(bool *unique) {
*unique = false;
return std::make_shared<MenuBarImplWin32>();
}
//-----------------------------------------------------------------------------
// Windows
//-----------------------------------------------------------------------------
#define SCROLLBAR_UNIT 65536
class WindowImplWin32 final : public Window {
public:
HWND hWindow = NULL;
HWND hTooltip = NULL;
HWND hEditor = NULL;
WNDPROC editorWndProc = NULL;
#if HAVE_OPENGL == 1
HGLRC hGlRc = NULL;
#elif HAVE_OPENGL == 3
static EGLDisplay eglDisplay;
EGLSurface eglSurface = EGL_NO_SURFACE;
EGLContext eglContext = EGL_NO_CONTEXT;
#endif
WINDOWPLACEMENT placement = {};
int minWidth = 0, minHeight = 0;
#if defined(HAVE_SPACEWARE)
SiOpenData sod = {};
SiHdl hSpaceWare = SI_NO_HANDLE;
#endif
std::shared_ptr<MenuBarImplWin32> menuBar;
std::string tooltipText;
bool scrollbarVisible = false;
static void RegisterWindowClass() {
static bool registered;
if(registered) return;
WNDCLASSEXW wc = {};
wc.cbSize = sizeof(wc);
wc.style = CS_BYTEALIGNCLIENT|CS_BYTEALIGNWINDOW|CS_OWNDC|CS_DBLCLKS;
wc.lpfnWndProc = WndProc;
wc.cbWndExtra = sizeof(WindowImplWin32 *);
wc.hIcon = (HICON)LoadImage(GetModuleHandle(NULL), MAKEINTRESOURCE(4000),
IMAGE_ICON, 32, 32, 0);
wc.hIconSm = (HICON)LoadImage(GetModuleHandle(NULL), MAKEINTRESOURCE(4000),
IMAGE_ICON, 16, 16, 0);
wc.hCursor = LoadCursorW(NULL, IDC_ARROW);
wc.lpszClassName = L"SolveSpace";
sscheck(RegisterClassExW(&wc));
registered = true;
}
WindowImplWin32(Window::Kind kind, std::shared_ptr<WindowImplWin32> parentWindow) {
placement.length = sizeof(placement);
RegisterWindowClass();
HWND hParentWindow = NULL;
if(parentWindow) {
hParentWindow = parentWindow->hWindow;
}
DWORD style = WS_SIZEBOX|WS_CLIPCHILDREN;
switch(kind) {
case Window::Kind::TOPLEVEL:
style |= WS_OVERLAPPEDWINDOW|WS_CLIPSIBLINGS;
break;
case Window::Kind::TOOL:
style |= WS_POPUPWINDOW|WS_CAPTION;
break;
}
sscheck(hWindow = CreateWindowExW(0, L"SolveSpace", L"", style,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
hParentWindow, NULL, NULL, NULL));
sscheck(SetWindowLongPtr(hWindow, 0, (LONG_PTR)this));
sscheck(hTooltip = CreateWindowExW(0, TOOLTIPS_CLASS, NULL,
WS_POPUP|TTS_NOPREFIX|TTS_ALWAYSTIP,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
hWindow, NULL, NULL, NULL));
sscheck(SetWindowPos(hTooltip, HWND_TOPMOST, 0, 0, 0, 0,
SWP_NOMOVE|SWP_NOSIZE|SWP_NOACTIVATE));
TOOLINFOW ti = {};
ti.cbSize = sizeof(ti);
ti.uFlags = TTF_SUBCLASS;
ti.hwnd = hWindow;
ti.lpszText = (LPWSTR)L"";
sscheck(SendMessageW(hTooltip, TTM_ADDTOOLW, 0, (LPARAM)&ti));
sscheck(SendMessageW(hTooltip, TTM_ACTIVATE, FALSE, 0));
DWORD editorStyle = WS_CLIPSIBLINGS|WS_CHILD|WS_TABSTOP|ES_AUTOHSCROLL;
sscheck(hEditor = CreateWindowExW(WS_EX_CLIENTEDGE, WC_EDIT, L"", editorStyle,
0, 0, 0, 0, hWindow, NULL, NULL, NULL));
sscheck(editorWndProc =
(WNDPROC)SetWindowLongPtr(hEditor, GWLP_WNDPROC, (LONG_PTR)EditorWndProc));
HDC hDc;
sscheck(hDc = GetDC(hWindow));
#if HAVE_OPENGL == 1
PIXELFORMATDESCRIPTOR pfd = {};
pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
pfd.nVersion = 1;
pfd.dwFlags = PFD_DRAW_TO_WINDOW|PFD_SUPPORT_OPENGL|PFD_DOUBLEBUFFER;
pfd.dwLayerMask = PFD_MAIN_PLANE;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 32;
pfd.cDepthBits = 24;
pfd.cAccumBits = 0;
pfd.cStencilBits = 0;
int pixelFormat;
sscheck(pixelFormat = ChoosePixelFormat(hDc, &pfd));
sscheck(SetPixelFormat(hDc, pixelFormat, &pfd));
sscheck(hGlRc = wglCreateContext(hDc));
#elif HAVE_OPENGL == 3
if(eglDisplay == EGL_NO_DISPLAY) {
ssassert(eglBindAPI(EGL_OPENGL_ES_API), "Cannot bind EGL API");
EGLBoolean initialized = EGL_FALSE;
for(auto &platformType : {
// Try platform types from least to most amount of software translation required.
std::make_pair("OpenGL ES", EGL_PLATFORM_ANGLE_TYPE_OPENGLES_ANGLE),
std::make_pair("OpenGL", EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE),
std::make_pair("Direct3D 11", EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE),
std::make_pair("Direct3D 9", EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE),
}) {
dbp("Initializing ANGLE with %s backend", platformType.first);
EGLint displayAttributes[] = {
EGL_PLATFORM_ANGLE_TYPE_ANGLE, platformType.second,
EGL_NONE
};
eglDisplay = eglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE, hDc,
displayAttributes);
if(eglDisplay != EGL_NO_DISPLAY) {
initialized = eglInitialize(eglDisplay, NULL, NULL);
if(initialized) break;
eglTerminate(eglDisplay);
}
}
ssassert(initialized, "Cannot find a suitable EGL display");
}
EGLint configAttributes[] = {
EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER,
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_DEPTH_SIZE, 24,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_NONE
};
EGLint numConfigs;
EGLConfig windowConfig;
ssassert(eglChooseConfig(eglDisplay, configAttributes, &windowConfig, 1, &numConfigs),
"Cannot choose EGL configuration");
EGLint surfaceAttributes[] = {
EGL_NONE
};
eglSurface = eglCreateWindowSurface(eglDisplay, windowConfig, hWindow, surfaceAttributes);
ssassert(eglSurface != EGL_NO_SURFACE, "Cannot create EGL window surface");
EGLint contextAttributes[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
eglContext = eglCreateContext(eglDisplay, windowConfig, NULL, contextAttributes);
ssassert(eglContext != EGL_NO_CONTEXT, "Cannot create EGL context");
#endif
sscheck(ReleaseDC(hWindow, hDc));
}
~WindowImplWin32() {
// Make sure any of our child windows get destroyed before we call DestroyWindow, or their
// own destructors may fail.
menuBar.reset();
sscheck(DestroyWindow(hWindow));
#if defined(HAVE_SPACEWARE)
if(hSpaceWare != SI_NO_HANDLE) {
SiClose(hSpaceWare);
}
#endif
}
static LRESULT CALLBACK WndProc(HWND h, UINT msg, WPARAM wParam, LPARAM lParam) {
if(handlingFatalError) return TRUE;
WindowImplWin32 *window;
sscheck(window = (WindowImplWin32 *)GetWindowLongPtr(h, 0));
// The wndproc may be called from within CreateWindowEx, and before we've associated
// the window with the WindowImplWin32. In that case, just defer to the default wndproc.
if(window == NULL) {
return DefWindowProcW(h, msg, wParam, lParam);
}
#if defined(HAVE_SPACEWARE)
if(window->hSpaceWare != SI_NO_HANDLE) {
SiGetEventData sged;
SiGetEventWinInit(&sged, msg, wParam, lParam);
SiSpwEvent sse;
if(SiGetEvent(window->hSpaceWare, 0, &sged, &sse) == SI_IS_EVENT) {
SixDofEvent event = {};
event.shiftDown = ((GetAsyncKeyState(VK_SHIFT) & 0x8000) != 0);
event.controlDown = ((GetAsyncKeyState(VK_SHIFT) & 0x8000) != 0);
if(sse.type == SI_MOTION_EVENT) {
// The Z axis translation and rotation are both
// backwards in the default mapping.
event.type = SixDofEvent::Type::MOTION;
event.translationX = sse.u.spwData.mData[SI_TX]*1.0,
event.translationY = sse.u.spwData.mData[SI_TY]*1.0,
event.translationZ = -sse.u.spwData.mData[SI_TZ]*1.0,
event.rotationX = sse.u.spwData.mData[SI_RX]*0.001,
event.rotationY = sse.u.spwData.mData[SI_RY]*0.001,
event.rotationZ = -sse.u.spwData.mData[SI_RZ]*0.001;
} else if(sse.type == SI_BUTTON_EVENT) {
if(SiButtonPressed(&sse) == SI_APP_FIT_BUTTON) {
event.type = SixDofEvent::Type::PRESS;
event.button = SixDofEvent::Button::FIT;
}
if(SiButtonReleased(&sse) == SI_APP_FIT_BUTTON) {
event.type = SixDofEvent::Type::RELEASE;
event.button = SixDofEvent::Button::FIT;
}
} else {
return 0;
}
if(window->onSixDofEvent) {
window->onSixDofEvent(event);
}
return 0;
}
}
#endif
switch (msg) {
case WM_ERASEBKGND:
break;
case WM_PAINT: {
PAINTSTRUCT ps;
HDC hDc = BeginPaint(window->hWindow, &ps);
if(window->onRender) {
#if HAVE_OPENGL == 1
wglMakeCurrent(hDc, window->hGlRc);
#elif HAVE_OPENGL == 3
eglMakeCurrent(window->eglDisplay, window->eglSurface,
window->eglSurface, window->eglContext);
#endif
window->onRender();
#if HAVE_OPENGL == 1
SwapBuffers(hDc);
#elif HAVE_OPENGL == 3
eglSwapBuffers(window->eglDisplay, window->eglSurface);
(void)hDc;
#endif
}
EndPaint(window->hWindow, &ps);
break;
}
case WM_CLOSE:
if(window->onClose) {
window->onClose();
}
break;
case WM_SIZE:
window->Invalidate();
break;
case WM_SIZING: {
double pixelRatio = window->GetDevicePixelRatio();
RECT rcw, rcc;
sscheck(GetWindowRect(window->hWindow, &rcw));
sscheck(GetClientRect(window->hWindow, &rcc));
int nonClientWidth = (rcw.right - rcw.left) - (rcc.right - rcc.left);
int nonClientHeight = (rcw.bottom - rcw.top) - (rcc.bottom - rcc.top);
RECT *rc = (RECT *)lParam;
int adjWidth = rc->right - rc->left;
int adjHeight = rc->bottom - rc->top;
adjWidth -= nonClientWidth;
adjWidth = max((int)(window->minWidth * pixelRatio), adjWidth);
adjWidth += nonClientWidth;
adjHeight -= nonClientHeight;
adjHeight = max((int)(window->minHeight * pixelRatio), adjHeight);
adjHeight += nonClientHeight;
switch(wParam) {
case WMSZ_RIGHT:
case WMSZ_BOTTOMRIGHT:
case WMSZ_TOPRIGHT:
rc->right = rc->left + adjWidth;
break;
case WMSZ_LEFT:
case WMSZ_BOTTOMLEFT:
case WMSZ_TOPLEFT:
rc->left = rc->right - adjWidth;
break;
}
switch(wParam) {
case WMSZ_BOTTOM:
case WMSZ_BOTTOMLEFT:
case WMSZ_BOTTOMRIGHT:
rc->bottom = rc->top + adjHeight;
break;
case WMSZ_TOP:
case WMSZ_TOPLEFT:
case WMSZ_TOPRIGHT:
rc->top = rc->bottom - adjHeight;
break;
}
break;
}
case WM_DPICHANGED: {
RECT rc = *(RECT *)lParam;
sscheck(SendMessage(window->hWindow, WM_SIZING, WMSZ_BOTTOMRIGHT, (LPARAM)&rc));
sscheck(SetWindowPos(window->hWindow, NULL, rc.left, rc.top,
rc.right - rc.left, rc.bottom - rc.top,
SWP_NOZORDER|SWP_NOACTIVATE));
window->Invalidate();
break;
}
case WM_LBUTTONDOWN:
case WM_MBUTTONDOWN:
case WM_RBUTTONDOWN:
case WM_LBUTTONDBLCLK:
case WM_MBUTTONDBLCLK:
case WM_RBUTTONDBLCLK:
case WM_LBUTTONUP:
case WM_MBUTTONUP:
case WM_RBUTTONUP:
if(GetMilliseconds() - Platform::contextMenuPopTime < 100) {
// Ignore the mouse click that dismisses a context menu, to avoid
// (e.g.) clearing a selection.
return 0;
}
// fallthrough
case WM_MOUSEMOVE:
case WM_MOUSEWHEEL:
case WM_MOUSELEAVE: {
double pixelRatio = window->GetDevicePixelRatio();
MouseEvent event = {};
event.x = GET_X_LPARAM(lParam) / pixelRatio;
event.y = GET_Y_LPARAM(lParam) / pixelRatio;
event.button = MouseEvent::Button::NONE;
event.shiftDown = (wParam & MK_SHIFT) != 0;
event.controlDown = (wParam & MK_CONTROL) != 0;
bool consumed = false;
switch(msg) {
case WM_LBUTTONDOWN:
event.button = MouseEvent::Button::LEFT;
event.type = MouseEvent::Type::PRESS;
break;
case WM_MBUTTONDOWN:
event.button = MouseEvent::Button::MIDDLE;
event.type = MouseEvent::Type::PRESS;
break;
case WM_RBUTTONDOWN:
event.button = MouseEvent::Button::RIGHT;
event.type = MouseEvent::Type::PRESS;
break;
case WM_LBUTTONDBLCLK:
event.button = MouseEvent::Button::LEFT;
event.type = MouseEvent::Type::DBL_PRESS;
break;
case WM_MBUTTONDBLCLK:
event.button = MouseEvent::Button::MIDDLE;
event.type = MouseEvent::Type::DBL_PRESS;
break;
case WM_RBUTTONDBLCLK:
event.button = MouseEvent::Button::RIGHT;
event.type = MouseEvent::Type::DBL_PRESS;
break;
case WM_LBUTTONUP:
event.button = MouseEvent::Button::LEFT;
event.type = MouseEvent::Type::RELEASE;
break;
case WM_MBUTTONUP:
event.button = MouseEvent::Button::MIDDLE;
event.type = MouseEvent::Type::RELEASE;
break;
case WM_RBUTTONUP:
event.button = MouseEvent::Button::RIGHT;
event.type = MouseEvent::Type::RELEASE;
break;
case WM_MOUSEWHEEL:
// Make the mousewheel work according to which window the mouse is
// over, not according to which window is active.
POINT pt;
pt.x = GET_X_LPARAM(lParam);
pt.y = GET_Y_LPARAM(lParam);
HWND hWindowUnderMouse;
sscheck(hWindowUnderMouse = WindowFromPoint(pt));
if(hWindowUnderMouse && hWindowUnderMouse != h) {
SendMessageW(hWindowUnderMouse, msg, wParam, lParam);
consumed = true;
break;
}
// Convert the mouse coordinates from screen to client area so that
// scroll wheel zooming remains centered irrespective of the window
// position.
ScreenToClient(hWindowUnderMouse, &pt);
event.x = pt.x / pixelRatio;
event.y = pt.y / pixelRatio;
event.type = MouseEvent::Type::SCROLL_VERT;
event.scrollDelta = GET_WHEEL_DELTA_WPARAM(wParam) / (double)WHEEL_DELTA;
break;
case WM_MOUSELEAVE:
event.type = MouseEvent::Type::LEAVE;
break;
case WM_MOUSEMOVE: {
event.type = MouseEvent::Type::MOTION;
if(wParam & MK_LBUTTON) {
event.button = MouseEvent::Button::LEFT;
} else if(wParam & MK_MBUTTON) {
event.button = MouseEvent::Button::MIDDLE;
} else if(wParam & MK_RBUTTON) {
event.button = MouseEvent::Button::RIGHT;
}
// We need this in order to get the WM_MOUSELEAVE
TRACKMOUSEEVENT tme = {};
tme.cbSize = sizeof(tme);
tme.dwFlags = TME_LEAVE;
tme.hwndTrack = window->hWindow;
sscheck(TrackMouseEvent(&tme));
break;
}
}
if(!consumed && window->onMouseEvent) {
window->onMouseEvent(event);
}
break;
}
case WM_KEYDOWN:
case WM_KEYUP: {
Platform::KeyboardEvent event = {};
if(msg == WM_KEYDOWN) {
event.type = Platform::KeyboardEvent::Type::PRESS;
} else if(msg == WM_KEYUP) {
event.type = Platform::KeyboardEvent::Type::RELEASE;
}
if(GetKeyState(VK_SHIFT) & 0x8000)
event.shiftDown = true;
if(GetKeyState(VK_CONTROL) & 0x8000)
event.controlDown = true;
if(wParam >= VK_F1 && wParam <= VK_F12) {
event.key = Platform::KeyboardEvent::Key::FUNCTION;
event.num = wParam - VK_F1 + 1;
} else {
event.key = Platform::KeyboardEvent::Key::CHARACTER;
event.chr = tolower(MapVirtualKeyW(wParam, MAPVK_VK_TO_CHAR));
if(event.chr == 0) {
if(wParam == VK_DELETE) {
event.chr = '\x7f';
} else {
You can’t perform that action at this time.