// 6 april 2015 #include "uipriv_windows.h" struct uiWindow { HWND hwnd; uiParent *content; BOOL shownOnce; int (*onClosing)(uiWindow *, void *); void *onClosingData; int margined; }; #define uiWindowClass L"uiWindowClass" static LRESULT CALLBACK uiWindowWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { uiWindow *w; CREATESTRUCTW *cs = (CREATESTRUCTW *) lParam; WINDOWPOS *wp = (WINDOWPOS *) lParam; RECT r; HWND contenthwnd; w = (uiWindow *) 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); } switch (uMsg) { case WM_WINDOWPOSCHANGED: if ((wp->flags & SWP_NOSIZE) != 0) break; // fall through case msgUpdateChild: if (GetClientRect(w->hwnd, &r) == 0) logLastError("error getting window client rect for resize in uiWindowWndProc()"); contenthwnd = uiParentHWND(w->content); if (MoveWindow(contenthwnd, r.left, r.top, r.right - r.left, r.bottom - r.top, TRUE) == 0) logLastError("error resizing window content parent in uiWindowWndProc()"); return 0; case WM_CLOSE: if (!(*(w->onClosing))(w, w->onClosingData)) return 0; break; // fall through to DefWindowProcW() case WM_DESTROY: // no need to free the child ourselves; it'll destroy itself after we leave this handler uiFree(w); break; // fall through to DefWindowProcW() } return DefWindowProcW(hwnd, uMsg, wParam, lParam); } ATOM registerWindowClass(HICON hDefaultIcon, HCURSOR hDefaultCursor) { WNDCLASSW wc; ZeroMemory(&wc, sizeof (WNDCLASSW)); wc.lpszClassName = uiWindowClass; wc.lpfnWndProc = uiWindowWndProc; wc.hInstance = hInstance; wc.hIcon = hDefaultIcon; wc.hCursor = hDefaultCursor; wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1); return RegisterClassW(&wc); } #define exstyle 0 #define style WS_OVERLAPPEDWINDOW static int defaultOnClosing(uiWindow *w, void *data) { return 1; } uiWindow *uiNewWindow(char *title, int width, int height) { uiWindow *w; RECT adjust; WCHAR *wtitle; w = uiNew(uiWindow); w->onClosing = defaultOnClosing; adjust.left = 0; adjust.top = 0; adjust.right = width; adjust.bottom = height; if (AdjustWindowRectEx(&adjust, style, FALSE, exstyle) == 0) logLastError("error getting real window coordinates in uiWindow()"); wtitle = toUTF16(title); w->hwnd = CreateWindowExW(exstyle, uiWindowClass, wtitle, style, CW_USEDEFAULT, CW_USEDEFAULT, adjust.right - adjust.left, adjust.bottom - adjust.top, NULL, NULL, hInstance, w); if (w->hwnd == NULL) logLastError("error creating window in uiWindow()"); uiFree(wtitle); w->content = uiNewParent((uintptr_t) (w->hwnd)); return w; } void uiWindowDestroy(uiWindow *w) { DestroyWindow(w->hwnd); } uintptr_t uiWindowHandle(uiWindow *w) { return (uintptr_t) (w->hwnd); } char *uiWindowTitle(uiWindow *w) { WCHAR *wtext; char *text; wtext = windowText(w->hwnd); text = toUTF8(wtext); uiFree(wtext); return text; } void uiWindowSetTitle(uiWindow *w, const char *text) { WCHAR *wtext; wtext = toUTF16(text); if (SetWindowTextW(w->hwnd, wtext) == 0) logLastError("error setting window title in uiWindowSetTitle()"); uiFree(wtext); } void uiWindowShow(uiWindow *w) { if (w->shownOnce) { ShowWindow(w->hwnd, SW_SHOW); return; } w->shownOnce = TRUE; ShowWindow(w->hwnd, nCmdShow); if (UpdateWindow(w->hwnd) == 0) logLastError("error calling UpdateWindow() after showing uiWindow for the first time"); } void uiWindowHide(uiWindow *w) { ShowWindow(w->hwnd, SW_HIDE); } void uiWindowOnClosing(uiWindow *w, int (*f)(uiWindow *, void *), void *data) { w->onClosing = f; w->onClosingData = data; } void uiWindowSetChild(uiWindow *w, uiControl *c) { uiParentSetChild(w->content, c); // don't call uiParentUpdate(); instead, synthesize a resize // otherwise, we'll have a 0x0 content area at first SendMessageW(w->hwnd, msgUpdateChild, 0, 0); } int uiWindowMargined(uiWindow *w) { return w->margined; } // from https://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing #define windowMargin 7 void uiWindowSetMargined(uiWindow *w, int margined) { w->margined = margined; if (w->margined) uiParentSetMargins(w->content, windowMargin, windowMargin, windowMargin, windowMargin); else uiParentSetMargins(w->content, 0, 0, 0, 0); uiParentUpdate(w->content); }