diff options
Diffstat (limited to 'windowspopover/main.c')
| -rw-r--r-- | windowspopover/main.c | 40 |
1 files changed, 38 insertions, 2 deletions
diff --git a/windowspopover/main.c b/windowspopover/main.c index 521748d..e98e48e 100644 --- a/windowspopover/main.c +++ b/windowspopover/main.c @@ -153,6 +153,9 @@ HRGN makePopoverRegion(HDC dc, LONG width, LONG height) return region; } +#define msgPopoverPrepareLeftRight (WM_APP+50) +#define msgPopoverPrepareTopBottom (WM_APP+51) + LRESULT CALLBACK popoverproc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { PAINTSTRUCT ps; @@ -235,16 +238,49 @@ LRESULT CALLBACK popoverproc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) FrameRect(dc, &r, GetStockPen(WHITE_BRUSH)); EndPaint(hwnd, &ps); return 0; + case msgPopoverPrepareLeftRight: + case msgPopoverPrepareTopBottom: + // TODO screen snapping + { + RECT r; + LONG x, y; + LONG width = 200, height = 200; + + if (GetWindowRect((HWND) wParam, &r) == 0) + xpanic("error getting window rect of Popover target", GetLastError()); + width += 2; + height += 2; + p->arrowLeft = -1; + p->arrowRight = -1; + p->arrowTop = -1; + p->arrowBottom = -1; + if (uMsg == msgPopoverPrepareLeftRight) { + width += ARROWWIDTH; + p->arrowLeft = height / 2 - ARROWHEIGHT; + x = r.right; + y = r.top - ((height - (r.bottom - r.top)) / 2); + } else { + height += ARROWHEIGHT; + p->arrowTop = width / 2 - ARROWWIDTH; + x = r.left - ((width - (r.right - r.left)) / 2); + y = r.bottom; + } + if (MoveWindow(hwnd, x, y, width, height, TRUE) == 0) + xpanic("error repositioning Popover", GetLastError()); + } + return 0; } return DefWindowProcW(hwnd, uMsg, wParam, lParam); } +HWND button; + LRESULT CALLBACK wndproc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { switch (uMsg) { case WM_COMMAND: if (HIWORD(wParam) == BN_CLICKED && LOWORD(wParam) == 100) { - MoveWindow(popover, 50, 50, 200, 200, TRUE); + SendMessageW(popover, msgPopoverPrepareLeftRight, (WPARAM) button, 0); ShowWindow(popover, SW_SHOW); UpdateWindow(popover); return 0; @@ -260,7 +296,7 @@ LRESULT CALLBACK wndproc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) int main(int argc, char *argv[]) { WNDCLASSW wc; - HWND mainwin, button; + HWND mainwin; MSG msg; ZeroMemory(&wc, sizeof (WNDCLASSW)); |