solvespace/src/platform/guiwin.cpp at python · KmolYuan/solvespace · GitHub

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//-----------------------------------------------------------------------------

// The Win32-based implementation of platform-dependent GUI functionality.

//-----------------------------------------------------------------------------

#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,

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,

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 {

View remainder of file in raw view

solvespace/src/platform/guiwin.cpp at python · KmolYuan/solvespace · GitHub

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