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[SHELL32] Resizable for SHBrowseForFolder (#3299)
Make the dialog box of SHBrowseForFolder function resizable. CORE-17341
This commit is contained in:
Katayama Hirofumi MZ
GitHub
parent
ba09834c5e
commit
de8d156e2c
36 changed files with 288 additions and 34 deletions
232
sdk/include/reactos/layout.h
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232
sdk/include/reactos/layout.h
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/*
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* PROJECT: ReactOS headers
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* LICENSE: LGPL-2.0-or-later (https://spdx.org/licenses/LGPL-2.0-or-later)
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* PURPOSE: The layout engine of resizable dialog boxes / windows
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* COPYRIGHT: Copyright 2020 Katayama Hirofumi MZ (katayama.hirofumi.mz@gmail.com)
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*/
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#pragma once
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#include <assert.h>
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typedef struct LAYOUT_INFO {
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UINT m_nCtrlID;
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UINT m_uEdges; /* BF_* flags */
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HWND m_hwndCtrl;
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SIZE m_margin1;
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SIZE m_margin2;
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} LAYOUT_INFO;
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typedef struct LAYOUT_DATA {
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HWND m_hwndParent;
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HWND m_hwndGrip;
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LAYOUT_INFO *m_pLayouts;
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UINT m_cLayouts;
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} LAYOUT_DATA;
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static __inline void
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_layout_ModifySystemMenu(LAYOUT_DATA *pData, BOOL bEnableResize)
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{
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if (bEnableResize)
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{
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GetSystemMenu(pData->m_hwndParent, TRUE); /* revert */
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}
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else
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{
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HMENU hSysMenu = GetSystemMenu(pData->m_hwndParent, FALSE);
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RemoveMenu(hSysMenu, SC_MAXIMIZE, MF_BYCOMMAND);
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RemoveMenu(hSysMenu, SC_SIZE, MF_BYCOMMAND);
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RemoveMenu(hSysMenu, SC_RESTORE, MF_BYCOMMAND);
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}
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}
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static __inline HDWP
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_layout_MoveGrip(LAYOUT_DATA *pData, HDWP hDwp OPTIONAL)
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{
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SIZE size = { GetSystemMetrics(SM_CXVSCROLL), GetSystemMetrics(SM_CYHSCROLL) };
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const UINT uFlags = SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOZORDER;
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RECT rcClient;
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GetClientRect(pData->m_hwndParent, &rcClient);
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if (hDwp)
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{
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hDwp = DeferWindowPos(hDwp, pData->m_hwndGrip, NULL,
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rcClient.right - size.cx, rcClient.bottom - size.cy,
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size.cx, size.cy, uFlags);
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}
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else
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{
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SetWindowPos(pData->m_hwndGrip, NULL,
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rcClient.right - size.cx, rcClient.bottom - size.cy,
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size.cx, size.cy, uFlags);
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}
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return hDwp;
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}
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static __inline void
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_layout_ShowGrip(LAYOUT_DATA *pData, BOOL bShow)
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{
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if (!bShow)
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{
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ShowWindow(pData->m_hwndGrip, SW_HIDE);
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return;
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}
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if (pData->m_hwndGrip == NULL)
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{
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DWORD style = WS_CHILD | WS_CLIPSIBLINGS | SBS_SIZEGRIP;
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pData->m_hwndGrip = CreateWindowExW(0, L"SCROLLBAR", NULL, style,
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0, 0, 0, 0, pData->m_hwndParent,
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NULL, GetModuleHandleW(NULL), NULL);
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}
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_layout_MoveGrip(pData, NULL);
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ShowWindow(pData->m_hwndGrip, SW_SHOWNOACTIVATE);
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}
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static __inline void
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_layout_GetPercents(LPRECT prcPercents, UINT uEdges)
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{
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prcPercents->left = (uEdges & BF_LEFT) ? 0 : 100;
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prcPercents->right = (uEdges & BF_RIGHT) ? 100 : 0;
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prcPercents->top = (uEdges & BF_TOP) ? 0 : 100;
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prcPercents->bottom = (uEdges & BF_BOTTOM) ? 100 : 0;
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}
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static __inline HDWP
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_layout_DoMoveItem(LAYOUT_DATA *pData, HDWP hDwp, const LAYOUT_INFO *pLayout,
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const RECT *rcClient)
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{
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RECT rcChild, NewRect, rcPercents;
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LONG nWidth, nHeight;
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if (!GetWindowRect(pLayout->m_hwndCtrl, &rcChild))
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return hDwp;
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MapWindowPoints(NULL, pData->m_hwndParent, (LPPOINT)&rcChild, 2);
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nWidth = rcClient->right - rcClient->left;
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nHeight = rcClient->bottom - rcClient->top;
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_layout_GetPercents(&rcPercents, pLayout->m_uEdges);
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NewRect.left = pLayout->m_margin1.cx + nWidth * rcPercents.left / 100;
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NewRect.top = pLayout->m_margin1.cy + nHeight * rcPercents.top / 100;
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NewRect.right = pLayout->m_margin2.cx + nWidth * rcPercents.right / 100;
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NewRect.bottom = pLayout->m_margin2.cy + nHeight * rcPercents.bottom / 100;
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if (!EqualRect(&NewRect, &rcChild))
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{
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hDwp = DeferWindowPos(hDwp, pLayout->m_hwndCtrl, NULL, NewRect.left, NewRect.top,
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NewRect.right - NewRect.left, NewRect.bottom - NewRect.top,
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SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREPOSITION);
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}
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return hDwp;
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}
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static __inline void
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_layout_ArrangeLayout(LAYOUT_DATA *pData)
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{
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RECT rcClient;
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UINT iItem;
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HDWP hDwp = BeginDeferWindowPos(pData->m_cLayouts + 1);
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if (hDwp == NULL)
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return;
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GetClientRect(pData->m_hwndParent, &rcClient);
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for (iItem = 0; iItem < pData->m_cLayouts; ++iItem)
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hDwp = _layout_DoMoveItem(pData, hDwp, &pData->m_pLayouts[iItem], &rcClient);
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hDwp = _layout_MoveGrip(pData, hDwp);
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EndDeferWindowPos(hDwp);
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}
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static __inline void
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_layout_InitLayouts(LAYOUT_DATA *pData)
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{
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RECT rcClient, rcChild, rcPercents;
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LONG nWidth, nHeight;
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UINT iItem;
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GetClientRect(pData->m_hwndParent, &rcClient);
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nWidth = rcClient.right - rcClient.left;
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nHeight = rcClient.bottom - rcClient.top;
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for (iItem = 0; iItem < pData->m_cLayouts; ++iItem)
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{
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LAYOUT_INFO *pInfo = &pData->m_pLayouts[iItem];
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if (pInfo->m_hwndCtrl == NULL)
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{
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pInfo->m_hwndCtrl = GetDlgItem(pData->m_hwndParent, pInfo->m_nCtrlID);
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if (pInfo->m_hwndCtrl == NULL)
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continue;
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}
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GetWindowRect(pInfo->m_hwndCtrl, &rcChild);
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MapWindowPoints(NULL, pData->m_hwndParent, (LPPOINT)&rcChild, 2);
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_layout_GetPercents(&rcPercents, pInfo->m_uEdges);
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pInfo->m_margin1.cx = rcChild.left - nWidth * rcPercents.left / 100;
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pInfo->m_margin1.cy = rcChild.top - nHeight * rcPercents.top / 100;
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pInfo->m_margin2.cx = rcChild.right - nWidth * rcPercents.right / 100;
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pInfo->m_margin2.cy = rcChild.bottom - nHeight * rcPercents.bottom / 100;
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}
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}
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/* NOTE: Please call LayoutUpdate on parent's WM_SIZE. */
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static __inline void
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LayoutUpdate(HWND ignored1, LAYOUT_DATA *pData, LPCVOID ignored2, UINT ignored3)
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{
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UNREFERENCED_PARAMETER(ignored1);
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UNREFERENCED_PARAMETER(ignored2);
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UNREFERENCED_PARAMETER(ignored3);
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if (pData == NULL)
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return;
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assert(IsWindow(pData->m_hwndParent));
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_layout_ArrangeLayout(pData);
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}
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static __inline void
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LayoutEnableResize(LAYOUT_DATA *pData, BOOL bEnable)
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{
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_layout_ShowGrip(pData, bEnable);
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_layout_ModifySystemMenu(pData, bEnable);
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}
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static __inline LAYOUT_DATA *
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LayoutInit(HWND hwndParent, const LAYOUT_INFO *pLayouts, UINT cLayouts)
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{
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SIZE_T cb;
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LAYOUT_DATA *pData = (LAYOUT_DATA *)SHAlloc(sizeof(LAYOUT_DATA));
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if (pData == NULL)
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{
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assert(0);
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return NULL;
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}
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cb = cLayouts * sizeof(LAYOUT_INFO);
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pData->m_cLayouts = cLayouts;
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pData->m_pLayouts = (LAYOUT_INFO *)SHAlloc(cb);
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if (pData->m_pLayouts == NULL)
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{
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assert(0);
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SHFree(pData);
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return NULL;
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}
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memcpy(pData->m_pLayouts, pLayouts, cb);
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/* NOTE: The parent window must have initially WS_SIZEBOX style. */
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assert(IsWindow(hwndParent));
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assert(GetWindowLongPtrW(hwndParent, GWL_STYLE) & WS_SIZEBOX);
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pData->m_hwndParent = hwndParent;
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pData->m_hwndGrip = NULL;
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LayoutEnableResize(pData, TRUE);
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_layout_InitLayouts(pData);
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return pData;
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}
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static __inline void
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LayoutDestroy(LAYOUT_DATA *pData)
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{
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if (!pData)
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return;
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SHFree(pData->m_pLayouts);
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SHFree(pData);
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}
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