// 27 april 2015 #include "uipriv_windows.h" // TODO ban uiControl methods that mean nothing on toplevels #define windowClass L"libui_uiWindowClass" struct window { uiWindow w; HWND hwnd; HMENU menubar; uiControl *child; BOOL shownOnce; int (*onClosing)(uiWindow *, void *); void *onClosingData; int margined; void (*baseCommitDestroy)(uiControl *); }; uiDefineControlType(uiWindow, uiTypeWindow, struct window) static LRESULT CALLBACK windowWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { struct window *w; CREATESTRUCTW *cs = (CREATESTRUCTW *) lParam; WINDOWPOS *wp = (WINDOWPOS *) lParam; LRESULT lResult; w = (struct window *) GetWindowLongPtrW(hwnd, GWLP_USERDATA); if (w == NULL) { if (uMsg == WM_CREATE) SetWindowLongPtrW(hwnd, GWLP_USERDATA, (LONG_PTR) (cs->lpCreateParams)); // fall through to DefWindowProc() anyway return DefWindowProcW(hwnd, uMsg, wParam, lParam); } if (handleParentMessages(hwnd, uMsg, wParam, lParam, &lResult) != FALSE) return lResult; switch (uMsg) { case WM_COMMAND: // not a menu if (lParam != 0) break; if (HIWORD(wParam) != 0) break; runMenuEvent(LOWORD(wParam), uiWindow(w)); return 0; case WM_WINDOWPOSCHANGED: if ((wp->flags & SWP_NOSIZE) != 0) break; // wine sends this early so we have to guard // TODO does real windows? if (w->child != NULL) uiControlQueueResize(uiControl(w)); return 0; case WM_CLOSE: if ((*(w->onClosing))(uiWindow(w), w->onClosingData)) uiControlDestroy(uiControl(w)); return 0; // we destroyed it already } return DefWindowProcW(hwnd, uMsg, wParam, lParam); } ATOM registerWindowClass(HICON hDefaultIcon, HCURSOR hDefaultCursor) { WNDCLASSW wc; ZeroMemory(&wc, sizeof (WNDCLASSW)); wc.lpszClassName = windowClass; wc.lpfnWndProc = windowWndProc; wc.hInstance = hInstance; wc.hIcon = hDefaultIcon; wc.hCursor = hDefaultCursor; wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1); return RegisterClassW(&wc); } void unregisterWindowClass(void) { if (UnregisterClassW(windowClass, hInstance) == 0) logLastError("error unregistering uiWindow window class in unregisterWindowClass()"); } static int defaultOnClosing(uiWindow *w, void *data) { return 0; } static void windowCommitDestroy(uiControl *c) { struct window *w = (struct window *) c; // first hide ourselves ShowWindow(w->hwnd, SW_HIDE); // now destroy the child // we need to unset its parent first if (w->child != NULL) { uiControlSetParent(w->child, NULL); uiControlDestroy(w->child); } // now free the menubar, if any if (w->menubar != NULL) freeMenubar(w->menubar); // and finally destroy ourselves dialogHelperUnregisterWindow(w->hwnd); (*(w->baseCommitDestroy))(uiControl(w)); } static uintptr_t windowHandle(uiControl *c) { struct window *w = (struct window *) c; return (uintptr_t) (w->hwnd); } static void windowCommitShow(uiControl *c) { struct window *w = (struct window *) c; if (w->shownOnce) { ShowWindow(w->hwnd, SW_SHOW); return; } w->shownOnce = TRUE; // make sure the child is the correct size uiControlQueueResize(uiControl(w)); ShowWindow(w->hwnd, nCmdShow); if (UpdateWindow(w->hwnd) == 0) logLastError("error calling UpdateWindow() after showing uiWindow for the first time in windowShow()"); } // TODO container update state static char *windowTitle(uiWindow *ww) { struct window *w = (struct window *) ww; WCHAR *wtext; char *text; wtext = windowText(w->hwnd); text = toUTF8(wtext); uiFree(wtext); return text; } static void windowSetTitle(uiWindow *ww, const char *title) { struct window *w = (struct window *) ww; WCHAR *wtitle; wtitle = toUTF16(title); if (SetWindowTextW(w->hwnd, wtitle) == 0) logLastError("error setting window title in uiWindowSetTitle()"); uiFree(wtitle); } static void windowOnClosing(uiWindow *ww, int (*f)(uiWindow *, void *), void *data) { struct window *w = (struct window *) ww; w->onClosing = f; w->onClosingData = data; } static void windowSetChild(uiWindow *ww, uiControl *child) { struct window *w = (struct window *) ww; if (w->child != NULL) uiControlSetParent(w->child, NULL); w->child = child; if (w->child != NULL) { uiControlSetParent(w->child, uiControl(w)); uiControlQueueResize(w->child); } } static int windowMargined(uiWindow *ww) { struct window *w = (struct window *) ww; return w->margined; } static void windowSetMargined(uiWindow *ww, int margined) { struct window *w = (struct window *) ww; w->margined = margined; uiControlQueueResize(uiControl(w)); } // from https://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing #define windowMargin 7 static void windowResizeChild(uiWindow *ww) { struct window *w = (struct window *) ww; RECT r; uiSizing *d; if (w->child == NULL) return; if (GetClientRect(w->hwnd, &r) == 0) logLastError("error getting uiWindow client rect in windowComputeChildSize()"); if (w->margined) { // TODO } d = uiControlSizing(uiControl(w)); uiControlResize(w->child, r.left, r.top, r.right - r.left, r.bottom - r.top, d); uiFreeSizing(d); } // see http://blogs.msdn.com/b/oldnewthing/archive/2003/09/11/54885.aspx and http://blogs.msdn.com/b/oldnewthing/archive/2003/09/13/54917.aspx static void setClientSize(struct window *w, int width, int height, BOOL hasMenubar, DWORD style, DWORD exstyle) { RECT window; window.left = 0; window.top = 0; window.right = width; window.bottom = height; if (AdjustWindowRectEx(&window, style, hasMenubar, exstyle) == 0) logLastError("error getting real window coordinates in setClientSize()"); if (hasMenubar) { RECT temp; temp = window; temp.bottom = 0x7FFF; // infinite height SendMessageW(w->hwnd, WM_NCCALCSIZE, (WPARAM) FALSE, (LPARAM) (&temp)); window.bottom += temp.top; } if (SetWindowPos(w->hwnd, NULL, 0, 0, window.right - window.left, window.bottom - window.top, SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOOWNERZORDER | SWP_NOZORDER) == 0) logLastError("error resizing window in setClientSize()"); } uiWindow *uiNewWindow(const char *title, int width, int height, int hasMenubar) { struct window *w; WCHAR *wtitle; BOOL hasMenubarBOOL; w = (struct window *) uiWindowsNewSingleHWNDControl(uiTypeWindow()); hasMenubarBOOL = FALSE; if (hasMenubar) hasMenubarBOOL = TRUE; #define style WS_OVERLAPPEDWINDOW #define exstyle 0 wtitle = toUTF16(title); w->hwnd = CreateWindowExW(exstyle, windowClass, wtitle, style, CW_USEDEFAULT, CW_USEDEFAULT, // use the raw width and height for now // this will get CW_USEDEFAULT (hopefully) predicting well // even if it doesn't, we're adjusting it later width, height, NULL, NULL, hInstance, w); if (w->hwnd == NULL) logLastError("error creating window in uiWindow()"); uiFree(wtitle); dialogHelperRegisterWindow(w->hwnd); if (hasMenubar) { w->menubar = makeMenubar(); if (SetMenu(w->hwnd, w->menubar) == 0) logLastError("error giving menu to window in uiNewWindow()"); } // and use the proper size setClientSize(w, width, height, hasMenubarBOOL, style, exstyle); w->onClosing = defaultOnClosing; uiControl(w)->Handle = windowHandle; w->baseCommitDestroy = uiControl(w)->CommitDestroy; uiControl(w)->CommitDestroy = windowCommitDestroy; // simply overwrite this; TODO call the base one somehow? uiControl(w)->CommitShow = windowCommitShow; uiWindow(w)->Title = windowTitle; uiWindow(w)->SetTitle = windowSetTitle; uiWindow(w)->OnClosing = windowOnClosing; uiWindow(w)->SetChild = windowSetChild; uiWindow(w)->Margined = windowMargined; uiWindow(w)->SetMargined = windowSetMargined; uiWindow(w)->ResizeChild = windowResizeChild; return uiWindow(w); }