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