diff options
Diffstat (limited to 'src/libui_sdl/libui/windows/window.cpp')
| -rw-r--r-- | src/libui_sdl/libui/windows/window.cpp | 665 |
1 files changed, 0 insertions, 665 deletions
diff --git a/src/libui_sdl/libui/windows/window.cpp b/src/libui_sdl/libui/windows/window.cpp deleted file mode 100644 index a8f7f23..0000000 --- a/src/libui_sdl/libui/windows/window.cpp +++ /dev/null @@ -1,665 +0,0 @@ -// 27 april 2015 -#include "uipriv_windows.hpp" - -#define windowClass L"libui_uiWindowClass" - -struct uiWindow { - uiWindowsControl c; - HWND hwnd; - HMENU menubar; - uiControl *child; - BOOL shownOnce; - int visible; - int margined; - BOOL hasMenubar; - BOOL changingSize; - int maximized; - int fullscreen; - WINDOWPLACEMENT fsPrevPlacement; - int borderless; - - int (*onClosing)(uiWindow *, void *); - void *onClosingData; - void (*onContentSizeChanged)(uiWindow *, void *); - void *onContentSizeChangedData; - void (*onDropFile)(uiWindow *, char *, void *); - void *onDropFileData; - void (*onGetFocus)(uiWindow *, void *); - void *onGetFocusData; - void (*onLoseFocus)(uiWindow *, void *); - void *onLoseFocusData; -}; - -// from https://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing -#define windowMargin 7 - -static void windowMargins(uiWindow *w, int *mx, int *my) -{ - uiWindowsSizing sizing; - - *mx = 0; - *my = 0; - if (!w->margined) - return; - uiWindowsGetSizing(w->hwnd, &sizing); - *mx = windowMargin; - *my = windowMargin; - uiWindowsSizingDlgUnitsToPixels(&sizing, mx, my); -} - -static void windowRelayout(uiWindow *w) -{ - int x, y, width, height; - RECT r; - int mx, my; - HWND child; - - if (w->child == NULL) - return; - x = 0; - y = 0; - uiWindowsEnsureGetClientRect(w->hwnd, &r); - width = r.right - r.left; - height = r.bottom - r.top; - windowMargins(w, &mx, &my); - x += mx; - y += my; - width -= 2 * mx; - height -= 2 * my; - child = (HWND) uiControlHandle(w->child); - uiWindowsEnsureMoveWindowDuringResize(child, x, y, width, height); -} - -static LRESULT CALLBACK windowWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) -{ - LONG_PTR ww; - uiWindow *w; - CREATESTRUCTW *cs = (CREATESTRUCTW *) lParam; - WINDOWPOS *wp = (WINDOWPOS *) lParam; - MINMAXINFO *mmi = (MINMAXINFO *) lParam; - int width, height; - LRESULT lResult; - - ww = GetWindowLongPtrW(hwnd, GWLP_USERDATA); - if (ww == 0) { - if (uMsg == WM_CREATE) - SetWindowLongPtrW(hwnd, GWLP_USERDATA, (LONG_PTR) (cs->lpCreateParams)); - // fall through to DefWindowProc() anyway - return DefWindowProcW(hwnd, uMsg, wParam, lParam); - } - w = uiWindow((void *) ww); - 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 || LOWORD(wParam) <= IDCANCEL) - break; - runMenuEvent(LOWORD(wParam), uiWindow(w)); - return 0; - case WM_WINDOWPOSCHANGED: - if ((wp->flags & SWP_NOSIZE) != 0) - break; - if (w->onContentSizeChanged != NULL) // TODO figure out why this is happening too early - if (!w->changingSize) - (*(w->onContentSizeChanged))(w, w->onContentSizeChangedData); - windowRelayout(w); - return 0; - case WM_GETMINMAXINFO: - // ensure the user cannot resize the window smaller than its minimum size - lResult = DefWindowProcW(hwnd, uMsg, wParam, lParam); - uiWindowsControlMinimumSize(uiWindowsControl(w), &width, &height); - // width and height are in client coordinates; ptMinTrackSize is in window coordinates - clientSizeToWindowSize(w->hwnd, &width, &height, w->hasMenubar); - mmi->ptMinTrackSize.x = width; - mmi->ptMinTrackSize.y = height; - return lResult; - - case WM_DROPFILES: - if (w->onDropFile) - { - HDROP eggdrop = (HDROP)wParam; - WCHAR filename[1024]; - DragQueryFile(eggdrop, 0, filename, 1024); - - char* filename8 = toUTF8(filename); - w->onDropFile(w, filename8, w->onDropFileData); - uiFreeText(filename8); - - DragFinish(eggdrop); - } - break; - - case WM_SETFOCUS: - if (w->onGetFocus) - { - w->onGetFocus(w, w->onGetFocusData); - return 0; - } - break; - case WM_KILLFOCUS: - if (w->onLoseFocus) - { - w->onLoseFocus(w, w->onLoseFocusData); - return 0; - } - break; - - case WM_PRINTCLIENT: - // we do no special painting; just erase the background - // don't worry about the return value; we let DefWindowProcW() handle this message - SendMessageW(hwnd, WM_ERASEBKGND, wParam, lParam); - return 0; - case WM_CLOSE: - if ((*(w->onClosing))(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 = LoadIcon(GetModuleHandle(NULL), MAKEINTRESOURCE(100)); - wc.hCursor = hDefaultCursor; - wc.hbrBackground = (HBRUSH) (COLOR_BTNFACE + 1); - return RegisterClassW(&wc); -} - -void unregisterWindowClass(void) -{ - if (UnregisterClassW(windowClass, hInstance) == 0) - logLastError(L"error unregistering uiWindow window class"); -} - -static int defaultOnClosing(uiWindow *w, void *data) -{ - return 0; -} - -static void defaultOnPositionContentSizeChanged(uiWindow *w, void *data) -{ - // do nothing -} - -static std::map<uiWindow *, bool> windows; - -static void uiWindowDestroy(uiControl *c) -{ - uiWindow *w = uiWindow(c); - - // first hide ourselves - ShowWindow(w->hwnd, SW_HIDE); - // now destroy the child - 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 free ourselves - windows.erase(w); - uiWindowsEnsureDestroyWindow(w->hwnd); - uiFreeControl(uiControl(w)); -} - -uiWindowsControlDefaultHandle(uiWindow) - -uiControl *uiWindowParent(uiControl *c) -{ - return NULL; -} - -void uiWindowSetParent(uiControl *c, uiControl *parent) -{ - uiUserBugCannotSetParentOnToplevel("uiWindow"); -} - -static int uiWindowToplevel(uiControl *c) -{ - return 1; -} - -// TODO initial state of windows is hidden; ensure this here and make it so on other platforms -static int uiWindowVisible(uiControl *c) -{ - uiWindow *w = uiWindow(c); - - return w->visible; -} - -static void uiWindowShow(uiControl *c) -{ - uiWindow *w = uiWindow(c); - - w->visible = 1; - // just in case the window's minimum size wasn't recalculated already - ensureMinimumWindowSize(w); - if (w->shownOnce) { - ShowWindow(w->hwnd, SW_SHOW); - return; - } - w->shownOnce = TRUE; - - int cmd; - if (w->maximized) - cmd = SW_SHOWMAXIMIZED; - else - cmd = SW_SHOWDEFAULT; - - // make sure the child is the correct size - uiWindowsControlMinimumSizeChanged(uiWindowsControl(w)); - ShowWindow(w->hwnd, cmd);//nCmdShow); - if (UpdateWindow(w->hwnd) == 0) - logLastError(L"error calling UpdateWindow() after showing uiWindow for the first time"); -} - -static void uiWindowHide(uiControl *c) -{ - uiWindow *w = uiWindow(c); - - w->visible = 0; - ShowWindow(w->hwnd, SW_HIDE); -} - -// TODO we don't want the window to be disabled completely; that would prevent it from being moved! ...would it? -uiWindowsControlDefaultEnabled(uiWindow) -uiWindowsControlDefaultEnable(uiWindow) -uiWindowsControlDefaultDisable(uiWindow) -uiWindowsControlDefaultSetFocus(uiWindow) -// TODO we need to do something about undocumented fields in the OS control types -uiWindowsControlDefaultSyncEnableState(uiWindow) -// TODO -uiWindowsControlDefaultSetParentHWND(uiWindow) - -static void uiWindowMinimumSize(uiWindowsControl *c, int *width, int *height) -{ - uiWindow *w = uiWindow(c); - int mx, my; - - *width = 0; - *height = 0; - if (w->child != NULL) - uiWindowsControlMinimumSize(uiWindowsControl(w->child), width, height); - windowMargins(w, &mx, &my); - *width += 2 * mx; - *height += 2 * my; -} - -static void uiWindowMinimumSizeChanged(uiWindowsControl *c) -{ - uiWindow *w = uiWindow(c); - - if (uiWindowsControlTooSmall(uiWindowsControl(w))) { - // TODO figure out what to do with this function - // maybe split it into two so WM_GETMINMAXINFO can use it? - ensureMinimumWindowSize(w); - return; - } - // otherwise we only need to re-layout everything - windowRelayout(w); -} - -static void uiWindowLayoutRect(uiWindowsControl *c, RECT *r) -{ - uiWindow *w = uiWindow(c); - - // the layout rect is the client rect in this case - uiWindowsEnsureGetClientRect(w->hwnd, r); -} - -static void uiWindowSetMinSize(uiControl *c, int w, int h) -{ - // TODO: relayout, eventually -} - -uiWindowsControlDefaultAssignControlIDZOrder(uiWindow) - -static void uiWindowChildVisibilityChanged(uiWindowsControl *c) -{ - // TODO eliminate the redundancy - uiWindowsControlMinimumSizeChanged(c); -} - -char *uiWindowTitle(uiWindow *w) -{ - return uiWindowsWindowText(w->hwnd); -} - -void uiWindowSetTitle(uiWindow *w, const char *title) -{ - uiWindowsSetWindowText(w->hwnd, title); - // don't queue resize; the caption isn't part of what affects layout and sizing of the client area (it'll be ellipsized if too long) -} - -// this is used for both fullscreening and centering -// see also https://blogs.msdn.microsoft.com/oldnewthing/20100412-00/?p=14353 and https://blogs.msdn.microsoft.com/oldnewthing/20050505-04/?p=35703 -static void windowMonitorRect(HWND hwnd, RECT *r) -{ - HMONITOR monitor; - MONITORINFO mi; - - monitor = MonitorFromWindow(hwnd, MONITOR_DEFAULTTOPRIMARY); - ZeroMemory(&mi, sizeof (MONITORINFO)); - mi.cbSize = sizeof (MONITORINFO); - if (GetMonitorInfoW(monitor, &mi) == 0) { - logLastError(L"error getting window monitor rect"); - // default to SM_CXSCREEN x SM_CYSCREEN to be safe - r->left = 0; - r->top = 0; - r->right = GetSystemMetrics(SM_CXSCREEN); - r->bottom = GetSystemMetrics(SM_CYSCREEN); - return; - } - *r = mi.rcMonitor; -} - -void uiWindowPosition(uiWindow *w, int *x, int *y) -{ - RECT rect; - if (GetWindowRect(w->hwnd, &rect) == 0) - logLastError(L"error getting window position"); - *x = rect.left; - *y = rect.top; -} - -void uiWindowSetPosition(uiWindow *w, int x, int y) -{ - if (SetWindowPos(w->hwnd, NULL, x, y, 0, 0, SWP_NOACTIVATE | SWP_NOSIZE | SWP_NOOWNERZORDER | SWP_NOZORDER) == 0) - logLastError(L"error moving window"); -} - -void uiWindowContentSize(uiWindow *w, int *width, int *height) -{ - RECT r; - - uiWindowsEnsureGetClientRect(w->hwnd, &r); - *width = r.right - r.left; - *height = r.bottom - r.top; -} - -// TODO should this disallow too small? -void uiWindowSetContentSize(uiWindow *w, int width, int height) -{ - w->changingSize = TRUE; - clientSizeToWindowSize(w->hwnd, &width, &height, w->hasMenubar); - if (SetWindowPos(w->hwnd, NULL, 0, 0, width, height, SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOOWNERZORDER | SWP_NOZORDER) == 0) - logLastError(L"error resizing window"); - w->changingSize = FALSE; -} - -int uiWindowMinimized(uiWindow *w) -{ - return IsIconic(w->hwnd); -} - -void uiWindowSetMinimized(uiWindow *w, int minimized) -{ - if (minimized) - ShowWindow(w->hwnd, SW_MINIMIZE); - else if (w->maximized) - ShowWindow(w->hwnd, SW_MAXIMIZE); - else - ShowWindow(w->hwnd, SW_RESTORE); -} - -int uiWindowMaximized(uiWindow *w) -{ - return IsZoomed(w->hwnd); -} - -void uiWindowSetMaximized(uiWindow *w, int maximized) -{ - w->maximized = maximized; - if (maximized) - ShowWindow(w->hwnd, SW_MAXIMIZE); - else - ShowWindow(w->hwnd, SW_RESTORE); -} - - -int uiWindowFullscreen(uiWindow *w) -{ - return w->fullscreen; -} - -void uiWindowSetFullscreen(uiWindow *w, int fullscreen) -{ - RECT r; - - if (w->fullscreen && fullscreen) - return; - if (!w->fullscreen && !fullscreen) - return; - w->fullscreen = fullscreen; - w->changingSize = TRUE; - if (w->fullscreen) { - ZeroMemory(&(w->fsPrevPlacement), sizeof (WINDOWPLACEMENT)); - w->fsPrevPlacement.length = sizeof (WINDOWPLACEMENT); - if (GetWindowPlacement(w->hwnd, &(w->fsPrevPlacement)) == 0) - logLastError(L"error getting old window placement"); - windowMonitorRect(w->hwnd, &r); - setStyle(w->hwnd, getStyle(w->hwnd) & ~WS_OVERLAPPEDWINDOW); - if (SetWindowPos(w->hwnd, HWND_TOP, - r.left, r.top, - r.right - r.left, r.bottom - r.top, - SWP_FRAMECHANGED | SWP_NOOWNERZORDER) == 0) - logLastError(L"error making window fullscreen"); - } else { - if (!w->borderless) // keep borderless until that is turned off - setStyle(w->hwnd, getStyle(w->hwnd) | WS_OVERLAPPEDWINDOW); - if (SetWindowPlacement(w->hwnd, &(w->fsPrevPlacement)) == 0) - logLastError(L"error leaving fullscreen"); - if (SetWindowPos(w->hwnd, NULL, - 0, 0, 0, 0, - SWP_FRAMECHANGED | SWP_NOMOVE | SWP_NOOWNERZORDER | SWP_NOSIZE | SWP_NOZORDER) == 0) - logLastError(L"error restoring window border after fullscreen"); - } - w->changingSize = FALSE; -} - -void uiWindowOnContentSizeChanged(uiWindow *w, void (*f)(uiWindow *, void *), void *data) -{ - w->onContentSizeChanged = f; - w->onContentSizeChangedData = data; -} - -void uiWindowOnClosing(uiWindow *w, int (*f)(uiWindow *, void *), void *data) -{ - w->onClosing = f; - w->onClosingData = data; -} - -void uiWindowOnDropFile(uiWindow *w, void (*f)(uiWindow *, char *, void *), void *data) -{ - w->onDropFile = f; - w->onDropFileData = data; -} - -void uiWindowOnGetFocus(uiWindow *w, void (*f)(uiWindow *, void *), void *data) -{ - w->onGetFocus = f; - w->onGetFocusData = data; -} - -void uiWindowOnLoseFocus(uiWindow *w, void (*f)(uiWindow *, void *), void *data) -{ - w->onLoseFocus = f; - w->onLoseFocusData = data; -} - -int uiWindowBorderless(uiWindow *w) -{ - return w->borderless; -} - -// TODO window should move to the old client position and should not have the extra space the borders left behind -// TODO extract the relevant styles from WS_OVERLAPPEDWINDOW? -void uiWindowSetBorderless(uiWindow *w, int borderless) -{ - w->borderless = borderless; - if (w->borderless) - setStyle(w->hwnd, getStyle(w->hwnd) & ~WS_OVERLAPPEDWINDOW); - else - if (!w->fullscreen) // keep borderless until leaving fullscreen - setStyle(w->hwnd, getStyle(w->hwnd) | WS_OVERLAPPEDWINDOW); -} - -void uiWindowSetChild(uiWindow *w, uiControl *child) -{ - if (w->child != NULL) { - uiControlSetParent(w->child, NULL); - uiWindowsControlSetParentHWND(uiWindowsControl(w->child), NULL); - } - w->child = child; - if (w->child != NULL) { - uiControlSetParent(w->child, uiControl(w)); - uiWindowsControlSetParentHWND(uiWindowsControl(w->child), w->hwnd); - uiWindowsControlAssignSoleControlIDZOrder(uiWindowsControl(w->child)); - windowRelayout(w); - } -} - -int uiWindowMargined(uiWindow *w) -{ - return w->margined; -} - -void uiWindowSetMargined(uiWindow *w, int margined) -{ - w->margined = margined; - windowRelayout(w); -} - - -void uiWindowSetDropTarget(uiWindow* w, int drop) -{ - DragAcceptFiles(w->hwnd, drop?TRUE:FALSE); -} - -// 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 -// TODO use clientSizeToWindowSize() -static void setClientSize(uiWindow *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(L"error getting real window coordinates"); - 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(L"error resizing window"); -} - -uiWindow *uiNewWindow(const char *title, int width, int height, int maximized, int hasMenubar, int resizable) -{ - uiWindow *w; - WCHAR *wtitle; - BOOL hasMenubarBOOL; - - if (!resizable) maximized = 0; - - uiWindowsNewControl(uiWindow, w); - - hasMenubarBOOL = FALSE; - if (hasMenubar) - hasMenubarBOOL = TRUE; - w->hasMenubar = hasMenubarBOOL; - - int style = WS_OVERLAPPEDWINDOW; - int exstyle = 0; - - if (!resizable) - style &= ~(WS_THICKFRAME | WS_MAXIMIZEBOX); - - 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(L"error creating window"); - uiFree(wtitle); - - if (hasMenubar) { - w->menubar = makeMenubar(); - if (SetMenu(w->hwnd, w->menubar) == 0) - logLastError(L"error giving menu to window"); - } - - // and use the proper size - setClientSize(w, width, height, hasMenubarBOOL, style, exstyle); - - w->maximized = maximized; - - uiWindowOnClosing(w, defaultOnClosing, NULL); - uiWindowOnContentSizeChanged(w, defaultOnPositionContentSizeChanged, NULL); - - uiWindowOnDropFile(w, NULL, NULL); - uiWindowOnGetFocus(w, NULL, NULL); - uiWindowOnLoseFocus(w, NULL, NULL); - - windows[w] = true; - return w; -} - -// this cannot queue a resize because it's called by the resize handler -void ensureMinimumWindowSize(uiWindow *w) -{ - int width, height; - RECT r; - - uiWindowsControlMinimumSize(uiWindowsControl(w), &width, &height); - uiWindowsEnsureGetClientRect(w->hwnd, &r); - if (width < (r.right - r.left)) // preserve width if larger - width = r.right - r.left; - if (height < (r.bottom - r.top)) // preserve height if larger - height = r.bottom - r.top; - clientSizeToWindowSize(w->hwnd, &width, &height, w->hasMenubar); - if (SetWindowPos(w->hwnd, NULL, 0, 0, width, height, SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOOWNERZORDER | SWP_NOZORDER) == 0) - logLastError(L"error resizing window"); -} - -void disableAllWindowsExcept(uiWindow *which) -{ - for (auto &w : windows) { - if (w.first == which) - continue; - EnableWindow(w.first->hwnd, FALSE); - } -} - -void enableAllWindowsExcept(uiWindow *which) -{ - for (auto &w : windows) { - if (w.first == which) - continue; - if (!uiControlEnabled(uiControl(w.first))) - continue; - EnableWindow(w.first->hwnd, TRUE); - } -} |