From d5389dd8bb868076b75675719d529d0507a90815 Mon Sep 17 00:00:00 2001
From: katahiromz <katayama.hirofumi.mz@gmail.com>
Date: Thu, 11 Oct 2018 13:47:02 +0900
Subject: [PATCH] user32: Implement CascadeWindows.
Changes
Minor formatting
Added WCHAR for FindWindowW parameters
Use stanard heap_ functions.
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=45968
Signed-off-by: Hirofumi Katayama <katayama.hirofumi.mz@gmail.com>
---
dlls/user32/mdi.c | 216 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 214 insertions(+), 2 deletions(-)
diff --git a/dlls/user32/mdi.c b/dlls/user32/mdi.c
index 10a3882..2e93056 100644
--- a/dlls/user32/mdi.c
+++ b/dlls/user32/mdi.c
@@ -2,6 +2,7 @@
*
* Copyright 1994, Bob Amstadt
* 1995,1996 Alex Korobka
+ * Copyright 2018 Katayama Hirofumi MZ
*
* This file contains routines to support MDI (Multiple Document
* Interface) features .
@@ -1846,12 +1847,223 @@ done:
* Success: Number of cascaded windows.
* Failure: 0
*/
+
+typedef struct CASCADE_INFO
+{
+ HWND top;
+ UINT flags;
+ HWND parent;
+ HWND desktop;
+ HWND tray_wnd;
+ HWND progman;
+ HWND *wnd_array;
+ DWORD wnd_count;
+} CASCADE_INFO;
+
+static BOOL CALLBACK GetCascadeChildProc(HWND hwnd, LPARAM lParam)
+{
+ DWORD count, size;
+ HWND *wnd_array;
+ CASCADE_INFO *info = (CASCADE_INFO *)lParam;
+
+ if (hwnd == info->desktop || hwnd == info->tray_wnd ||
+ hwnd == info->progman || hwnd == info->top)
+ {
+ return TRUE;
+ }
+
+ if (info->parent && GetParent(hwnd) != info->parent)
+ return TRUE;
+
+ if ((info->flags & MDITILE_SKIPDISABLED) && !IsWindowEnabled(hwnd))
+ return TRUE;
+
+ if (!IsWindowVisible(hwnd) || IsIconic(hwnd))
+ return TRUE;
+
+ count = info->wnd_count;
+ size = (count + 1) * sizeof(HWND);
+
+ if (count == 0 || !info->wnd_array)
+ {
+ count = 0;
+ info->wnd_array = (HWND *)heap_alloc(size);
+ }
+ else
+ {
+ wnd_array = (HWND *)heap_realloc(info->wnd_array, size);
+ if (!wnd_array)
+ {
+ heap_free(info->wnd_array);
+ }
+ info->wnd_array = wnd_array;
+ }
+
+ if (!info->wnd_array)
+ {
+ info->wnd_count = 0;
+ return FALSE;
+ }
+
+ info->wnd_array[count] = hwnd;
+ info->wnd_count = count + 1;
+ return TRUE;
+}
+
+static BOOL
+QuerySizeFix(HWND hwnd, INT *pcx, INT *pcy)
+{
+ MINMAXINFO mmi;
+ DWORD_PTR result;
+
+ mmi.ptMinTrackSize.x = mmi.ptMinTrackSize.y = 0;
+ mmi.ptMaxTrackSize.x = mmi.ptMaxTrackSize.y = MAXLONG;
+ if (SendMessageTimeoutW(hwnd, WM_GETMINMAXINFO, 0, (LPARAM)&mmi,
+ SMTO_ABORTIFHUNG | SMTO_NORMAL, 120, &result))
+ {
+ *pcx = min(max(*pcx, mmi.ptMinTrackSize.x), mmi.ptMaxTrackSize.x);
+ *pcy = min(max(*pcy, mmi.ptMinTrackSize.y), mmi.ptMaxTrackSize.y);
+ return TRUE;
+ }
+ return FALSE;
+}
+
WORD WINAPI
CascadeWindows (HWND hwndParent, UINT wFlags, const RECT *lpRect,
UINT cKids, const HWND *lpKids)
{
- FIXME("(%p,0x%08x,...,%u,...): stub\n", hwndParent, wFlags, cKids);
- return 0;
+ static WCHAR shelltray[] = {'S','h','e','l','l','_','T','r','a','y','W','n','d',0};
+ static WCHAR progman[] = {'P','r','o','g','m','a','n',0};
+ CASCADE_INFO info;
+ HWND hwnd, top, prev;
+ HMONITOR monitor;
+ MONITORINFO mi;
+ RECT work_rect, wnd_rect;
+ DWORD i, ret = 0;
+ INT x, y, width, height, new_width, new_height, work_width, work_height, dx, dy;
+ HDWP hDWP;
+ POINT pt;
+
+ TRACE("(%p,0x%08x,%p,%u,%p)\n", hwndParent, wFlags, lpRect, cKids, lpKids);
+
+ top = GetTopWindow(hwndParent);
+
+ ZeroMemory(&info, sizeof(info));
+ info.desktop = GetDesktopWindow();
+ info.tray_wnd = FindWindowW(shelltray, NULL);
+ info.progman = FindWindowW(progman, NULL);
+ info.parent = hwndParent;
+ info.flags = wFlags;
+
+ if (cKids == 0 || lpKids == NULL)
+ {
+ info.top = top;
+ EnumChildWindows(hwndParent, GetCascadeChildProc, (LPARAM)&info);
+
+ info.top = NULL;
+ GetCascadeChildProc(top, (LPARAM)&info);
+ }
+ else
+ {
+ info.wnd_count = cKids;
+ info.wnd_array = (HWND *)lpKids;
+ }
+
+ if (info.wnd_count == 0 || info.wnd_array == NULL)
+ return ret;
+
+ if (lpRect)
+ {
+ work_rect = *lpRect;
+ }
+ else if (hwndParent)
+ {
+ GetClientRect(hwndParent, &work_rect);
+ }
+ else
+ {
+ pt.x = pt.y = 0;
+ monitor = MonitorFromPoint(pt, MONITOR_DEFAULTTOPRIMARY);
+ mi.cbSize = sizeof(mi);
+ GetMonitorInfoW(monitor, &mi);
+ work_rect = mi.rcWork;
+ }
+
+ hDWP = BeginDeferWindowPos(info.wnd_count);
+ if (hDWP == NULL)
+ goto cleanup;
+
+ x = work_rect.left;
+ y = work_rect.top;
+ dx = GetSystemMetrics(SM_CXSIZEFRAME) + GetSystemMetrics(SM_CXSIZE);
+ dy = GetSystemMetrics(SM_CYSIZEFRAME) + GetSystemMetrics(SM_CYSIZE);
+ work_width = work_rect.right - work_rect.left;
+ work_height = work_rect.bottom - work_rect.top;
+ prev = NULL;
+ for (i = info.wnd_count; i > 0;) /* in reverse order */
+ {
+ --i;
+ hwnd = info.wnd_array[i];
+
+ if (!IsWindowVisible(hwnd) || IsIconic(hwnd))
+ continue;
+
+ if ((info.flags & MDITILE_SKIPDISABLED) && !IsWindowEnabled(hwnd))
+ continue;
+
+ if (IsZoomed(hwnd))
+ ShowWindow(hwnd, SW_RESTORE | SW_SHOWNA);
+
+ GetWindowRect(hwnd, &wnd_rect);
+ new_width = width = wnd_rect.right - wnd_rect.left;
+ new_height = height = wnd_rect.bottom - wnd_rect.top;
+
+ /* if we can change the window size and it is not only one */
+ if (info.wnd_count != 1 && (GetWindowLongPtrW(hwnd, GWL_STYLE) & WS_THICKFRAME))
+ {
+ /* check the size */
+#define THRESHOLD(xy) (((xy) * 5) / 7) /* in the rate 5/7 */
+ new_width = min(new_width, THRESHOLD(work_width));
+ new_height = min(new_height, THRESHOLD(work_height));
+#undef THRESHOLD
+ if (width != new_width || height != new_height)
+ {
+ /* too large. shrink if we can */
+ if (QuerySizeFix(hwnd, &new_width, &new_height))
+ {
+ width = new_width;
+ height = new_height;
+ }
+ }
+ }
+
+ if (x + width > work_rect.right)
+ x = work_rect.left;
+ if (y + height > work_rect.bottom)
+ y = work_rect.top;
+
+ hDWP = DeferWindowPos(hDWP, hwnd, HWND_TOP, x, y, width, height, SWP_NOACTIVATE);
+ if (hDWP == NULL)
+ {
+ ret = 0;
+ goto cleanup;
+ }
+
+ x += dx;
+ y += dy;
+ prev = hwnd;
+ ++ret;
+ }
+
+ EndDeferWindowPos(hDWP);
+
+ if (prev)
+ SetForegroundWindow(prev);
+
+cleanup:
+ heap_free(info.wnd_array);
+
+ return (WORD)ret;
}
--
1.9.1