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Diffstat (limited to 'include/pugl/detail/win.c')
| -rw-r--r-- | include/pugl/detail/win.c | 1139 |
1 files changed, 0 insertions, 1139 deletions
diff --git a/include/pugl/detail/win.c b/include/pugl/detail/win.c deleted file mode 100644 index 237ebde..0000000 --- a/include/pugl/detail/win.c +++ /dev/null @@ -1,1139 +0,0 @@ -/* - Copyright 2012-2020 David Robillard <d@drobilla.net> - - Permission to use, copy, modify, and/or distribute this software for any - purpose with or without fee is hereby granted, provided that the above - copyright notice and this permission notice appear in all copies. - - THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -*/ - -/** - @file win.c - @brief Windows implementation. -*/ - -#include "pugl/detail/win.h" - -#include "pugl/detail/implementation.h" -#include "pugl/detail/stub.h" -#include "pugl/pugl.h" -#include "pugl/pugl_stub.h" - -#include <windows.h> -#include <windowsx.h> - -#include <math.h> -#include <stdbool.h> -#include <stdlib.h> -#include <string.h> -#include <wctype.h> - -#ifndef WM_MOUSEWHEEL -# define WM_MOUSEWHEEL 0x020A -#endif -#ifndef WM_MOUSEHWHEEL -# define WM_MOUSEHWHEEL 0x020E -#endif -#ifndef WHEEL_DELTA -# define WHEEL_DELTA 120 -#endif -#ifndef GWLP_USERDATA -# define GWLP_USERDATA (-21) -#endif - -#define PUGL_LOCAL_CLOSE_MSG (WM_USER + 50) -#define PUGL_LOCAL_MARK_MSG (WM_USER + 51) -#define PUGL_LOCAL_CLIENT_MSG (WM_USER + 52) -#define PUGL_USER_TIMER_MIN 9470 - -typedef BOOL (WINAPI *PFN_SetProcessDPIAware)(void); - -LRESULT CALLBACK -wndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam); - -static wchar_t* -puglUtf8ToWideChar(const char* const utf8) -{ - const int len = MultiByteToWideChar(CP_UTF8, 0, utf8, -1, NULL, 0); - if (len > 0) { - wchar_t* result = (wchar_t*)calloc((size_t)len, sizeof(wchar_t)); - MultiByteToWideChar(CP_UTF8, 0, utf8, -1, result, len); - return result; - } - - return NULL; -} - -static char* -puglWideCharToUtf8(const wchar_t* const wstr, size_t* len) -{ - int n = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL); - if (n > 0) { - char* result = (char*)calloc((size_t)n, sizeof(char)); - WideCharToMultiByte(CP_UTF8, 0, wstr, -1, result, n, NULL, NULL); - *len = (size_t)n; - return result; - } - - return NULL; -} - -static bool -puglRegisterWindowClass(const char* name) -{ - WNDCLASSEX wc = { 0 }; - if (GetClassInfoEx(GetModuleHandle(NULL), name, &wc)) { - return true; // Already registered - } - - wc.cbSize = sizeof(wc); - wc.style = CS_OWNDC; - wc.lpfnWndProc = wndProc; - wc.hInstance = GetModuleHandle(NULL); - wc.hIcon = LoadIcon(NULL, IDI_APPLICATION); - wc.hCursor = LoadCursor(NULL, IDC_ARROW); - wc.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH); - wc.lpszClassName = name; - - return RegisterClassEx(&wc); -} - -PuglWorldInternals* -puglInitWorldInternals(PuglWorldType PUGL_UNUSED(type), - PuglWorldFlags PUGL_UNUSED(flags)) -{ - PuglWorldInternals* impl = (PuglWorldInternals*)calloc( - 1, sizeof(PuglWorldInternals)); - if (!impl) { - return NULL; - } - - HMODULE user32 = LoadLibrary("user32.dll"); - if (user32) { - PFN_SetProcessDPIAware SetProcessDPIAware = - (PFN_SetProcessDPIAware)GetProcAddress( - user32, "SetProcessDPIAware"); - if (SetProcessDPIAware) { - SetProcessDPIAware(); - } - - FreeLibrary(user32); - } - - LARGE_INTEGER frequency; - QueryPerformanceFrequency(&frequency); - impl->timerFrequency = (double)frequency.QuadPart; - - return impl; -} - -void* -puglGetNativeWorld(PuglWorld* PUGL_UNUSED(world)) -{ - return GetModuleHandle(NULL); -} - -PuglInternals* -puglInitViewInternals(void) -{ - return (PuglInternals*)calloc(1, sizeof(PuglInternals)); -} - -static PuglStatus -puglPollWinEvents(PuglWorld* world, const double timeout) -{ - (void)world; - - if (timeout < 0) { - WaitMessage(); - } else { - MsgWaitForMultipleObjects( - 0, NULL, FALSE, (DWORD)(timeout * 1e3), QS_ALLEVENTS); - } - return PUGL_SUCCESS; -} - -PuglStatus -puglRealize(PuglView* view) -{ - PuglInternals* impl = view->impl; - if (impl->hwnd) { - return PUGL_FAILURE; - } - - // Getting depth from the display mode seems tedious, just set usual values - if (view->hints[PUGL_RED_BITS] == PUGL_DONT_CARE) { - view->hints[PUGL_RED_BITS] = 8; - } - if (view->hints[PUGL_BLUE_BITS] == PUGL_DONT_CARE) { - view->hints[PUGL_BLUE_BITS] = 8; - } - if (view->hints[PUGL_GREEN_BITS] == PUGL_DONT_CARE) { - view->hints[PUGL_GREEN_BITS] = 8; - } - if (view->hints[PUGL_ALPHA_BITS] == PUGL_DONT_CARE) { - view->hints[PUGL_ALPHA_BITS] = 8; - } - - // Get refresh rate for resize draw timer - DEVMODEA devMode = {0}; - EnumDisplaySettingsA(NULL, ENUM_CURRENT_SETTINGS, &devMode); - view->hints[PUGL_REFRESH_RATE] = (int)devMode.dmDisplayFrequency; - - // Register window class if necessary - if (!puglRegisterWindowClass(view->world->className)) { - return PUGL_REGISTRATION_FAILED; - } - - if (!view->backend || !view->backend->configure) { - return PUGL_BAD_BACKEND; - } - - PuglStatus st = PUGL_SUCCESS; - if ((st = view->backend->configure(view)) || - (st = view->backend->create(view))) { - return st; - } - - if (view->title) { - puglSetWindowTitle(view, view->title); - } - - view->impl->cursor = LoadCursor(NULL, IDC_ARROW); - - puglSetFrame(view, view->frame); - SetWindowLongPtr(impl->hwnd, GWLP_USERDATA, (LONG_PTR)view); - - puglDispatchSimpleEvent(view, PUGL_CREATE); - - return PUGL_SUCCESS; -} - -PuglStatus -puglShowWindow(PuglView* view) -{ - PuglInternals* impl = view->impl; - - ShowWindow(impl->hwnd, SW_SHOWNORMAL); - SetFocus(impl->hwnd); - return PUGL_SUCCESS; -} - -PuglStatus -puglHideWindow(PuglView* view) -{ - PuglInternals* impl = view->impl; - - ShowWindow(impl->hwnd, SW_HIDE); - return PUGL_SUCCESS; -} - -void -puglFreeViewInternals(PuglView* view) -{ - if (view) { - if (view->backend) { - view->backend->destroy(view); - } - - ReleaseDC(view->impl->hwnd, view->impl->hdc); - DestroyWindow(view->impl->hwnd); - free(view->impl); - } -} - -void -puglFreeWorldInternals(PuglWorld* world) -{ - UnregisterClass(world->className, NULL); - free(world->impl); -} - -static PuglKey -keySymToSpecial(WPARAM sym) -{ - // clang-format off - switch (sym) { - case VK_F1: return PUGL_KEY_F1; - case VK_F2: return PUGL_KEY_F2; - case VK_F3: return PUGL_KEY_F3; - case VK_F4: return PUGL_KEY_F4; - case VK_F5: return PUGL_KEY_F5; - case VK_F6: return PUGL_KEY_F6; - case VK_F7: return PUGL_KEY_F7; - case VK_F8: return PUGL_KEY_F8; - case VK_F9: return PUGL_KEY_F9; - case VK_F10: return PUGL_KEY_F10; - case VK_F11: return PUGL_KEY_F11; - case VK_F12: return PUGL_KEY_F12; - case VK_BACK: return PUGL_KEY_BACKSPACE; - case VK_DELETE: return PUGL_KEY_DELETE; - case VK_LEFT: return PUGL_KEY_LEFT; - case VK_UP: return PUGL_KEY_UP; - case VK_RIGHT: return PUGL_KEY_RIGHT; - case VK_DOWN: return PUGL_KEY_DOWN; - case VK_PRIOR: return PUGL_KEY_PAGE_UP; - case VK_NEXT: return PUGL_KEY_PAGE_DOWN; - case VK_HOME: return PUGL_KEY_HOME; - case VK_END: return PUGL_KEY_END; - case VK_INSERT: return PUGL_KEY_INSERT; - case VK_SHIFT: - case VK_LSHIFT: return PUGL_KEY_SHIFT_L; - case VK_RSHIFT: return PUGL_KEY_SHIFT_R; - case VK_CONTROL: - case VK_LCONTROL: return PUGL_KEY_CTRL_L; - case VK_RCONTROL: return PUGL_KEY_CTRL_R; - case VK_MENU: - case VK_LMENU: return PUGL_KEY_ALT_L; - case VK_RMENU: return PUGL_KEY_ALT_R; - case VK_LWIN: return PUGL_KEY_SUPER_L; - case VK_RWIN: return PUGL_KEY_SUPER_R; - case VK_CAPITAL: return PUGL_KEY_CAPS_LOCK; - case VK_SCROLL: return PUGL_KEY_SCROLL_LOCK; - case VK_NUMLOCK: return PUGL_KEY_NUM_LOCK; - case VK_SNAPSHOT: return PUGL_KEY_PRINT_SCREEN; - case VK_PAUSE: return PUGL_KEY_PAUSE; - } - // clang-format on - - return (PuglKey)0; -} - -static uint32_t -getModifiers(void) -{ - // clang-format off - return (((GetKeyState(VK_SHIFT) < 0) ? PUGL_MOD_SHIFT : 0u) | - ((GetKeyState(VK_CONTROL) < 0) ? PUGL_MOD_CTRL : 0u) | - ((GetKeyState(VK_MENU) < 0) ? PUGL_MOD_ALT : 0u) | - ((GetKeyState(VK_LWIN) < 0) ? PUGL_MOD_SUPER : 0u) | - ((GetKeyState(VK_RWIN) < 0) ? PUGL_MOD_SUPER : 0u)); - // clang-format on -} - -static void -initMouseEvent(PuglEvent* event, - PuglView* view, - int button, - bool press, - LPARAM lParam) -{ - POINT pt = { GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam) }; - ClientToScreen(view->impl->hwnd, &pt); - - if (press) { - SetCapture(view->impl->hwnd); - } else { - ReleaseCapture(); - } - - event->button.time = GetMessageTime() / 1e3; - event->button.type = press ? PUGL_BUTTON_PRESS : PUGL_BUTTON_RELEASE; - event->button.x = GET_X_LPARAM(lParam); - event->button.y = GET_Y_LPARAM(lParam); - event->button.xRoot = pt.x; - event->button.yRoot = pt.y; - event->button.state = getModifiers(); - event->button.button = (uint32_t)button; -} - -static void -initScrollEvent(PuglEvent* event, PuglView* view, LPARAM lParam) -{ - POINT pt = { GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam) }; - ScreenToClient(view->impl->hwnd, &pt); - - event->scroll.time = GetMessageTime() / 1e3; - event->scroll.type = PUGL_SCROLL; - event->scroll.x = pt.x; - event->scroll.y = pt.y; - event->scroll.xRoot = GET_X_LPARAM(lParam); - event->scroll.yRoot = GET_Y_LPARAM(lParam); - event->scroll.state = getModifiers(); - event->scroll.dx = 0; - event->scroll.dy = 0; -} - -/// Return the code point for buf, or the replacement character on error -static uint32_t -puglDecodeUTF16(const wchar_t* buf, const int len) -{ - const uint32_t c0 = buf[0]; - const uint32_t c1 = buf[0]; - if (c0 >= 0xD800 && c0 < 0xDC00) { - if (len < 2) { - return 0xFFFD; // Surrogate, but length is only 1 - } else if (c1 >= 0xDC00 && c1 <= 0xDFFF) { - return ((c0 & 0x03FF) << 10) + (c1 & 0x03FF) + 0x10000; - } - - return 0xFFFD; // Unpaired surrogates - } - - return c0; -} - -static void -initKeyEvent(PuglEventKey* event, - PuglView* view, - bool press, - WPARAM wParam, - LPARAM lParam) -{ - POINT rpos = { 0, 0 }; - GetCursorPos(&rpos); - - POINT cpos = { rpos.x, rpos.y }; - ScreenToClient(view->impl->hwnd, &rpos); - - const unsigned scode = (uint32_t)((lParam & 0xFF0000) >> 16); - const unsigned vkey = ((wParam == VK_SHIFT) - ? MapVirtualKey(scode, MAPVK_VSC_TO_VK_EX) - : (unsigned)wParam); - - const unsigned vcode = MapVirtualKey(vkey, MAPVK_VK_TO_VSC); - const unsigned kchar = MapVirtualKey(vkey, MAPVK_VK_TO_CHAR); - const bool dead = kchar >> (sizeof(UINT) * 8 - 1) & 1; - const bool ext = lParam & 0x01000000; - - event->type = press ? PUGL_KEY_PRESS : PUGL_KEY_RELEASE; - event->time = GetMessageTime() / 1e3; - event->state = getModifiers(); - event->xRoot = rpos.x; - event->yRoot = rpos.y; - event->x = cpos.x; - event->y = cpos.y; - event->keycode = (uint32_t)((lParam & 0xFF0000) >> 16); - event->key = 0; - - const PuglKey special = keySymToSpecial(vkey); - if (special) { - if (ext && (special == PUGL_KEY_CTRL || special == PUGL_KEY_ALT)) { - event->key = (uint32_t)special + 1u; // Right hand key - } else { - event->key = (uint32_t)special; - } - } else if (!dead) { - // Translate unshifted key - BYTE keyboardState[256] = {0}; - wchar_t buf[5] = {0}; - - event->key = puglDecodeUTF16( - buf, ToUnicode(vkey, vcode, keyboardState, buf, 4, 1 << 2)); - } -} - -static void -initCharEvent(PuglEvent* event, PuglView* view, WPARAM wParam, LPARAM lParam) -{ - const wchar_t utf16[2] = { wParam & 0xFFFF, (wParam >> 16) & 0xFFFF }; - - initKeyEvent(&event->key, view, true, wParam, lParam); - event->type = PUGL_TEXT; - event->text.character = puglDecodeUTF16(utf16, 2); - - if (!WideCharToMultiByte( - CP_UTF8, 0, utf16, 2, event->text.string, 8, NULL, NULL)) { - memset(event->text.string, 0, 8); - } -} - -static bool -ignoreKeyEvent(PuglView* view, LPARAM lParam) -{ - return view->hints[PUGL_IGNORE_KEY_REPEAT] && (lParam & (1 << 30)); -} - -static RECT -handleConfigure(PuglView* view, PuglEvent* event) -{ - RECT rect; - GetClientRect(view->impl->hwnd, &rect); - MapWindowPoints(view->impl->hwnd, - view->parent ? (HWND)view->parent : HWND_DESKTOP, - (LPPOINT)&rect, - 2); - - const LONG width = rect.right - rect.left; - const LONG height = rect.bottom - rect.top; - - view->frame.x = rect.left; - view->frame.y = rect.top; - - event->configure.type = PUGL_CONFIGURE; - event->configure.x = view->frame.x; - event->configure.y = view->frame.y; - event->configure.width = width; - event->configure.height = height; - - if (view->frame.width != width || view->frame.height != height) { - view->frame.width = width; - view->frame.height = height; - } - - return rect; -} - -static void -handleCrossing(PuglView* view, const PuglEventType type, POINT pos) -{ - POINT root_pos = pos; - ClientToScreen(view->impl->hwnd, &root_pos); - - const PuglEventCrossing ev = { - type, - 0, - GetMessageTime() / 1e3, - (double)pos.x, - (double)pos.y, - (double)root_pos.x, - (double)root_pos.y, - getModifiers(), - PUGL_CROSSING_NORMAL, - }; - - puglDispatchEvent(view, (const PuglEvent*)&ev); -} - -static void -constrainAspect(const PuglView* const view, - RECT* const size, - const WPARAM wParam) -{ - const float minA = (float)view->minAspectX / (float)view->minAspectY; - const float maxA = (float)view->maxAspectX / (float)view->maxAspectY; - const float w = (float)(size->right - size->left); - const float h = (float)(size->bottom - size->top); - const float a = w / h; - - switch (wParam) { - case WMSZ_TOP: - size->top = (a < minA ? (LONG)((float)size->bottom - w * minA) : - a > maxA ? (LONG)((float)size->bottom - w * maxA) : - size->top); - break; - case WMSZ_TOPRIGHT: - case WMSZ_RIGHT: - case WMSZ_BOTTOMRIGHT: - size->right = (a < minA ? (LONG)((float)size->left + h * minA) : - a > maxA ? (LONG)((float)size->left + h * maxA) : - size->right); - break; - case WMSZ_BOTTOM: - size->bottom = (a < minA ? (LONG)((float)size->top + w * minA) : - a > maxA ? (LONG)((float)size->top + w * maxA) : - size->bottom); - break; - case WMSZ_BOTTOMLEFT: - case WMSZ_LEFT: - case WMSZ_TOPLEFT: - size->left = (a < minA ? (LONG)((float)size->right - h * minA) : - a > maxA ? (LONG)((float)size->right - h * maxA) : - size->left); - break; - } -} - -static LRESULT -handleMessage(PuglView* view, UINT message, WPARAM wParam, LPARAM lParam) -{ - PuglEvent event = {{PUGL_NOTHING, 0}}; - RECT rect = {0, 0, 0, 0}; - POINT pt = {0, 0}; - MINMAXINFO* mmi = NULL; - void* dummy_ptr = NULL; - - if (InSendMessageEx(dummy_ptr)) { - event.any.flags |= PUGL_IS_SEND_EVENT; - } - - switch (message) { - case WM_SETCURSOR: - if (LOWORD(lParam) == HTCLIENT) { - SetCursor(view->impl->cursor); - } else { - return DefWindowProc(view->impl->hwnd, message, wParam, lParam); - } - break; - case WM_SHOWWINDOW: - if (wParam) { - handleConfigure(view, &event); - puglDispatchEvent(view, &event); - event.type = PUGL_NOTHING; - - RedrawWindow(view->impl->hwnd, NULL, NULL, - RDW_INVALIDATE|RDW_ALLCHILDREN|RDW_INTERNALPAINT); - } - - if ((bool)wParam != view->visible) { - view->visible = wParam; - event.any.type = wParam ? PUGL_MAP : PUGL_UNMAP; - } - break; - case WM_SIZE: - handleConfigure(view, &event); - InvalidateRect(view->impl->hwnd, NULL, false); - break; - case WM_SIZING: - if (view->minAspectX) { - constrainAspect(view, (RECT*)lParam, wParam); - return TRUE; - } - break; - case WM_ENTERSIZEMOVE: - case WM_ENTERMENULOOP: - puglDispatchSimpleEvent(view, PUGL_LOOP_ENTER); - break; - case WM_TIMER: - if (wParam >= PUGL_USER_TIMER_MIN) { - PuglEvent ev = {{PUGL_TIMER, 0}}; - ev.timer.id = wParam - PUGL_USER_TIMER_MIN; - puglDispatchEvent(view, &ev); - } - break; - case WM_EXITSIZEMOVE: - case WM_EXITMENULOOP: - puglDispatchSimpleEvent(view, PUGL_LOOP_LEAVE); - break; - case WM_GETMINMAXINFO: - mmi = (MINMAXINFO*)lParam; - mmi->ptMinTrackSize.x = view->minWidth; - mmi->ptMinTrackSize.y = view->minHeight; - if (view->maxWidth > 0 && view->maxHeight > 0) { - mmi->ptMaxTrackSize.x = view->maxWidth; - mmi->ptMaxTrackSize.y = view->maxHeight; - } - break; - case WM_PAINT: - GetUpdateRect(view->impl->hwnd, &rect, false); - event.expose.type = PUGL_EXPOSE; - event.expose.x = rect.left; - event.expose.y = rect.top; - event.expose.width = rect.right - rect.left; - event.expose.height = rect.bottom - rect.top; - break; - case WM_ERASEBKGND: - return true; - case WM_MOUSEMOVE: - pt.x = GET_X_LPARAM(lParam); - pt.y = GET_Y_LPARAM(lParam); - - if (!view->impl->mouseTracked) { - TRACKMOUSEEVENT tme = {0}; - - tme.cbSize = sizeof(tme); - tme.dwFlags = TME_LEAVE; - tme.hwndTrack = view->impl->hwnd; - TrackMouseEvent(&tme); - - handleCrossing(view, PUGL_POINTER_IN, pt); - view->impl->mouseTracked = true; - } - - ClientToScreen(view->impl->hwnd, &pt); - event.motion.type = PUGL_MOTION; - event.motion.time = GetMessageTime() / 1e3; - event.motion.x = GET_X_LPARAM(lParam); - event.motion.y = GET_Y_LPARAM(lParam); - event.motion.xRoot = pt.x; - event.motion.yRoot = pt.y; - event.motion.state = getModifiers(); - break; - case WM_MOUSELEAVE: - GetCursorPos(&pt); - ScreenToClient(view->impl->hwnd, &pt); - handleCrossing(view, PUGL_POINTER_OUT, pt); - view->impl->mouseTracked = false; - break; - case WM_LBUTTONDOWN: - initMouseEvent(&event, view, 1, true, lParam); - break; - case WM_MBUTTONDOWN: - initMouseEvent(&event, view, 2, true, lParam); - break; - case WM_RBUTTONDOWN: - initMouseEvent(&event, view, 3, true, lParam); - break; - case WM_LBUTTONUP: - initMouseEvent(&event, view, 1, false, lParam); - break; - case WM_MBUTTONUP: - initMouseEvent(&event, view, 2, false, lParam); - break; - case WM_RBUTTONUP: - initMouseEvent(&event, view, 3, false, lParam); - break; - case WM_MOUSEWHEEL: - initScrollEvent(&event, view, lParam); - event.scroll.dy = GET_WHEEL_DELTA_WPARAM(wParam) / (double)WHEEL_DELTA; - event.scroll.direction = (event.scroll.dy > 0 - ? PUGL_SCROLL_UP - : PUGL_SCROLL_DOWN); - break; - case WM_MOUSEHWHEEL: - initScrollEvent(&event, view, lParam); - event.scroll.dx = GET_WHEEL_DELTA_WPARAM(wParam) / (double)WHEEL_DELTA; - event.scroll.direction = (event.scroll.dx > 0 - ? PUGL_SCROLL_RIGHT - : PUGL_SCROLL_LEFT); - break; - case WM_KEYDOWN: - if (!ignoreKeyEvent(view, lParam)) { - initKeyEvent(&event.key, view, true, wParam, lParam); - } - break; - case WM_KEYUP: - initKeyEvent(&event.key, view, false, wParam, lParam); - break; - case WM_CHAR: - initCharEvent(&event, view, wParam, lParam); - break; - case WM_SETFOCUS: - event.type = PUGL_FOCUS_IN; - break; - case WM_KILLFOCUS: - event.type = PUGL_FOCUS_OUT; - break; - case WM_SYSKEYDOWN: - initKeyEvent(&event.key, view, true, wParam, lParam); - break; - case WM_SYSKEYUP: - initKeyEvent(&event.key, view, false, wParam, lParam); - break; - case WM_SYSCHAR: - return TRUE; - case PUGL_LOCAL_CLIENT_MSG: - event.client.type = PUGL_CLIENT; - event.client.data1 = (uintptr_t)wParam; - event.client.data2 = (uintptr_t)lParam; - break; - case WM_QUIT: - case PUGL_LOCAL_CLOSE_MSG: - event.any.type = PUGL_CLOSE; - break; - default: - return DefWindowProc(view->impl->hwnd, message, wParam, lParam); - } - - puglDispatchEvent(view, &event); - - return 0; -} - -PuglStatus -puglGrabFocus(PuglView* view) -{ - SetFocus(view->impl->hwnd); - return PUGL_SUCCESS; -} - -bool -puglHasFocus(const PuglView* view) -{ - return GetFocus() == view->impl->hwnd; -} - -PuglStatus -puglRequestAttention(PuglView* view) -{ - FLASHWINFO info = {sizeof(FLASHWINFO), - view->impl->hwnd, - FLASHW_ALL|FLASHW_TIMERNOFG, - 1, - 0}; - - FlashWindowEx(&info); - - return PUGL_SUCCESS; -} - -PuglStatus -puglStartTimer(PuglView* view, uintptr_t id, double timeout) -{ - const UINT msec = (UINT)floor(timeout * 1000.0); - - return (SetTimer(view->impl->hwnd, PUGL_USER_TIMER_MIN + id, msec, NULL) - ? PUGL_SUCCESS - : PUGL_UNKNOWN_ERROR); -} - -PuglStatus -puglStopTimer(PuglView* view, uintptr_t id) -{ - return (KillTimer(view->impl->hwnd, PUGL_USER_TIMER_MIN + id) - ? PUGL_SUCCESS - : PUGL_UNKNOWN_ERROR); -} - -PuglStatus -puglSendEvent(PuglView* view, const PuglEvent* event) -{ - if (event->type == PUGL_CLIENT) { - PostMessage(view->impl->hwnd, - PUGL_LOCAL_CLIENT_MSG, - (WPARAM)event->client.data1, - (LPARAM)event->client.data2); - - return PUGL_SUCCESS; - } - - return PUGL_UNSUPPORTED_TYPE; -} - -#ifndef PUGL_DISABLE_DEPRECATED -PuglStatus -puglWaitForEvent(PuglView* PUGL_UNUSED(view)) -{ - WaitMessage(); - return PUGL_SUCCESS; -} -#endif - -static PuglStatus -puglDispatchViewEvents(PuglView* view) -{ - /* Windows has no facility to process only currently queued messages, which - causes the event loop to run forever in cases like mouse movement where - the queue is constantly being filled with new messages. To work around - this, we post a message to ourselves before starting, record its time - when it is received, then break the loop on the first message that was - created afterwards. */ - - long markTime = 0; - MSG msg; - while (PeekMessage(&msg, view->impl->hwnd, 0, 0, PM_REMOVE)) { - if (msg.message == PUGL_LOCAL_MARK_MSG) { - markTime = GetMessageTime(); - } else { - TranslateMessage(&msg); - DispatchMessage(&msg); - if (markTime != 0 && GetMessageTime() > markTime) { - break; - } - } - } - - return PUGL_SUCCESS; -} - -static PuglStatus -puglDispatchWinEvents(PuglWorld* world) -{ - for (size_t i = 0; i < world->numViews; ++i) { - PostMessage(world->views[i]->impl->hwnd, PUGL_LOCAL_MARK_MSG, 0, 0); - } - - for (size_t i = 0; i < world->numViews; ++i) { - puglDispatchViewEvents(world->views[i]); - } - - return PUGL_SUCCESS; -} - -PuglStatus -puglUpdate(PuglWorld* world, double timeout) -{ - const double startTime = puglGetTime(world); - PuglStatus st = PUGL_SUCCESS; - - if (timeout < 0.0) { - st = puglPollWinEvents(world, timeout); - st = st ? st : puglDispatchWinEvents(world); - } else if (timeout == 0.0) { - st = puglDispatchWinEvents(world); - } else { - const double endTime = startTime + timeout - 0.001; - for (double t = startTime; t < endTime; t = puglGetTime(world)) { - if ((st = puglPollWinEvents(world, endTime - t)) || - (st = puglDispatchWinEvents(world))) { - break; - } - } - } - - for (size_t i = 0; i < world->numViews; ++i) { - if (world->views[i]->visible) { - puglDispatchSimpleEvent(world->views[i], PUGL_UPDATE); - } - - UpdateWindow(world->views[i]->impl->hwnd); - } - - return st; -} - -#ifndef PUGL_DISABLE_DEPRECATED -PuglStatus -puglProcessEvents(PuglView* view) -{ - return puglUpdate(view->world, 0.0); -} -#endif - -LRESULT CALLBACK -wndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) -{ - PuglView* view = (PuglView*)GetWindowLongPtr(hwnd, GWLP_USERDATA); - - switch (message) { - case WM_CREATE: - PostMessage(hwnd, WM_SHOWWINDOW, TRUE, 0); - return 0; - case WM_CLOSE: - PostMessage(hwnd, PUGL_LOCAL_CLOSE_MSG, wParam, lParam); - return 0; - case WM_DESTROY: - return 0; - default: - if (view && hwnd == view->impl->hwnd) { - return handleMessage(view, message, wParam, lParam); - } else { - return DefWindowProc(hwnd, message, wParam, lParam); - } - } -} - -double -puglGetTime(const PuglWorld* world) -{ - LARGE_INTEGER count; - QueryPerformanceCounter(&count); - return ((double)count.QuadPart / world->impl->timerFrequency - - world->startTime); -} - -PuglStatus -puglPostRedisplay(PuglView* view) -{ - InvalidateRect(view->impl->hwnd, NULL, false); - return PUGL_SUCCESS; -} - -PuglStatus -puglPostRedisplayRect(PuglView* view, const PuglRect rect) -{ - const RECT r = {(long)floor(rect.x), - (long)floor(rect.y), - (long)ceil(rect.x + rect.width), - (long)ceil(rect.y + rect.height)}; - - InvalidateRect(view->impl->hwnd, &r, false); - - return PUGL_SUCCESS; -} - -PuglNativeView -puglGetNativeWindow(PuglView* view) -{ - return (PuglNativeView)view->impl->hwnd; -} - -PuglStatus -puglSetWindowTitle(PuglView* view, const char* title) -{ - puglSetString(&view->title, title); - - if (view->impl->hwnd) { - wchar_t* wtitle = puglUtf8ToWideChar(title); - if (wtitle) { - SetWindowTextW(view->impl->hwnd, wtitle); - free(wtitle); - } - } - - return PUGL_SUCCESS; -} - -PuglStatus -puglSetFrame(PuglView* view, const PuglRect frame) -{ - view->frame = frame; - - if (view->impl->hwnd) { - RECT rect = { (long)frame.x, - (long)frame.y, - (long)frame.x + (long)frame.width, - (long)frame.y + (long)frame.height }; - - AdjustWindowRectEx(&rect, puglWinGetWindowFlags(view), - FALSE, - puglWinGetWindowExFlags(view)); - - if (!SetWindowPos(view->impl->hwnd, - HWND_TOP, - rect.left, - rect.top, - rect.right - rect.left, - rect.bottom - rect.top, - SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOZORDER)) { - return PUGL_UNKNOWN_ERROR; - } - } - - return PUGL_SUCCESS; -} - -PuglStatus -puglSetDefaultSize(PuglView* const view, const int width, const int height) -{ - view->defaultWidth = width; - view->defaultHeight = height; - return PUGL_SUCCESS; -} - -PuglStatus -puglSetMinSize(PuglView* const view, const int width, const int height) -{ - view->minWidth = width; - view->minHeight = height; - return PUGL_SUCCESS; -} - -PuglStatus -puglSetMaxSize(PuglView* const view, const int width, const int height) -{ - view->maxWidth = width; - view->maxHeight = height; - return PUGL_SUCCESS; -} - -PuglStatus -puglSetAspectRatio(PuglView* const view, - const int minX, - const int minY, - const int maxX, - const int maxY) -{ - view->minAspectX = minX; - view->minAspectY = minY; - view->maxAspectX = maxX; - view->maxAspectY = maxY; - return PUGL_SUCCESS; -} - -PuglStatus -puglSetTransientFor(PuglView* view, PuglNativeView parent) -{ - if (view->parent) { - return PUGL_FAILURE; - } - - view->transientParent = parent; - - if (view->impl->hwnd) { - SetWindowLongPtr(view->impl->hwnd, GWLP_HWNDPARENT, (LONG_PTR)parent); - return GetLastError() == NO_ERROR ? PUGL_SUCCESS : PUGL_FAILURE; - } - - return PUGL_SUCCESS; -} - -const void* -puglGetClipboard(PuglView* const view, - const char** const type, - size_t* const len) -{ - PuglInternals* const impl = view->impl; - - if (!IsClipboardFormatAvailable(CF_UNICODETEXT) || - !OpenClipboard(impl->hwnd)) { - return NULL; - } - - HGLOBAL mem = GetClipboardData(CF_UNICODETEXT); - wchar_t* wstr = mem ? (wchar_t*)GlobalLock(mem) : NULL; - if (!wstr) { - CloseClipboard(); - return NULL; - } - - free(view->clipboard.data); - view->clipboard.data = puglWideCharToUtf8(wstr, &view->clipboard.len); - GlobalUnlock(mem); - CloseClipboard(); - - return puglGetInternalClipboard(view, type, len); -} - -PuglStatus -puglSetClipboard(PuglView* const view, - const char* const type, - const void* const data, - const size_t len) -{ - PuglInternals* const impl = view->impl; - - PuglStatus st = puglSetInternalClipboard(view, type, data, len); - if (st) { - return st; - } else if (!OpenClipboard(impl->hwnd)) { - return PUGL_UNKNOWN_ERROR; - } - - // Measure string and allocate global memory for clipboard - const char* str = (const char*)data; - const int wlen = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0); - HGLOBAL mem = GlobalAlloc(GMEM_MOVEABLE, - (size_t)(wlen + 1) * sizeof(wchar_t)); - if (!mem) { - CloseClipboard(); - return PUGL_UNKNOWN_ERROR; - } - - // Lock global memory - wchar_t* wstr = (wchar_t*)GlobalLock(mem); - if (!wstr) { - GlobalFree(mem); - CloseClipboard(); - return PUGL_UNKNOWN_ERROR; - } - - // Convert string into global memory and set it as clipboard data - MultiByteToWideChar(CP_UTF8, 0, str, (int)len, wstr, wlen); - wstr[wlen] = 0; - GlobalUnlock(mem); - SetClipboardData(CF_UNICODETEXT, mem); - CloseClipboard(); - return PUGL_SUCCESS; -} - -static const char* const cursor_ids[] = { - IDC_ARROW, // ARROW - IDC_IBEAM, // CARET - IDC_CROSS, // CROSSHAIR - IDC_HAND, // HAND - IDC_NO, // NO - IDC_SIZEWE, // LEFT_RIGHT - IDC_SIZENS, // UP_DOWN -}; - -PuglStatus -puglSetCursor(PuglView* view, PuglCursor cursor) -{ - PuglInternals* const impl = view->impl; - const unsigned index = (unsigned)cursor; - const unsigned count = sizeof(cursor_ids) / sizeof(cursor_ids[0]); - - if (index >= count) { - return PUGL_BAD_PARAMETER; - } - - const HCURSOR cur = LoadCursor(NULL, cursor_ids[index]); - if (!cur) { - return PUGL_FAILURE; - } - - impl->cursor = cur; - if (impl->mouseTracked) { - SetCursor(cur); - } - - return PUGL_SUCCESS; -} |