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[SHELL32] Implement Explorer background image (Retrial of #801) (#1463)

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IconArea_Image, IconArea_Text and IconArea_TextBackground values in desktop.ini in a folder will be supported. It denies network paths. CORE-5516
This commit is contained in:
Katayama Hirofumi MZ 2019-04-05 07:59:35 +09:00 • committed by GitHub
parent 466dbc5929
commit d04b4e65d6
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 256 additions and 13 deletions
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120
dll/win32/shell32/CDefView.cpp
View file

@ -110,6 +110,7 @@ class CDefView :
CLSID m_Category;
BOOL m_Destroyed;
SFVM_CUSTOMVIEWINFO_DATA m_viewinfo_data;
private:
HRESULT _MergeToolbar();
@ -257,6 +258,7 @@ class CDefView :
LRESULT OnGetDlgCode(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
LRESULT OnDestroy(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
LRESULT OnEraseBackground(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
LRESULT OnPrintClient(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
LRESULT OnSysColorChange(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
LRESULT OnGetShellBrowser(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
LRESULT OnNCCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled);
@ -280,7 +282,7 @@ class CDefView :
{
{ sizeof(WNDCLASSEX), CS_PARENTDC, StartWindowProc,
0, 0, NULL, NULL,
LoadCursor(NULL, IDC_ARROW), (HBRUSH)(COLOR_WINDOW + 1), NULL, SV_CLASS_NAME, NULL
LoadCursor(NULL, IDC_ARROW), NULL, NULL, SV_CLASS_NAME, NULL
},
NULL, NULL, IDC_ARROW, TRUE, 0, _T("")
};
@ -323,6 +325,7 @@ class CDefView :
MESSAGE_HANDLER(WM_GETDLGCODE, OnGetDlgCode)
MESSAGE_HANDLER(WM_DESTROY, OnDestroy)
MESSAGE_HANDLER(WM_ERASEBKGND, OnEraseBackground)
MESSAGE_HANDLER(WM_PRINTCLIENT, OnPrintClient)
MESSAGE_HANDLER(WM_SYSCOLORCHANGE, OnSysColorChange)
MESSAGE_HANDLER(CWM_GETISHELLBROWSER, OnGetShellBrowser)
MESSAGE_HANDLER(WM_SETTINGCHANGE, OnSettingChange)
@ -384,12 +387,21 @@ CDefView::CDefView() :
ZeroMemory(&m_sortInfo, sizeof(m_sortInfo));
ZeroMemory(&m_ptLastMousePos, sizeof(m_ptLastMousePos));
ZeroMemory(&m_Category, sizeof(m_Category));
m_viewinfo_data.clrText = GetSysColor(COLOR_WINDOWTEXT);
m_viewinfo_data.clrTextBack = GetSysColor(COLOR_WINDOW);
m_viewinfo_data.hbmBack = NULL;
}
CDefView::~CDefView()
{
TRACE(" destroying IShellView(%p)\n", this);
if (m_viewinfo_data.hbmBack)
{
::DeleteObject(m_viewinfo_data.hbmBack);
m_viewinfo_data.hbmBack = NULL;
}
if (m_hWnd)
{
DestroyViewWindow();
@ -578,8 +590,6 @@ BOOL CDefView::CreateList()
m_sortInfo.nHeaderID = -1;
m_sortInfo.nLastHeaderID = -1;
UpdateListColors();
/* UpdateShellSettings(); */
return TRUE;
}
@ -620,6 +630,27 @@ void CDefView::UpdateListColors()
m_ListView.SetExtendedListViewStyle(0, LVS_EX_TRANSPARENTSHADOWTEXT);
}
}
else
{
// text background color
COLORREF clrTextBack = GetSysColor(COLOR_WINDOW);
if (m_viewinfo_data.clrTextBack != CLR_INVALID)
{
clrTextBack = m_viewinfo_data.clrTextBack;
}
m_ListView.SetTextBkColor(clrTextBack);
// text color
COLORREF clrText = GetSysColor(COLOR_WINDOWTEXT);
if (m_viewinfo_data.clrText != CLR_INVALID)
{
clrText = m_viewinfo_data.clrText;
}
m_ListView.SetTextColor(clrText);
// Background is painted by the parent via WM_PRINTCLIENT.
m_ListView.SetExtendedListViewStyle(LVS_EX_TRANSPARENTBKGND, LVS_EX_TRANSPARENTBKGND);
}
}
/**********************************************************
@ -950,9 +981,27 @@ HRESULT CDefView::FillList()
m_sortInfo.bIsAscending = TRUE;
_Sort();
if (m_viewinfo_data.hbmBack)
{
::DeleteObject(m_viewinfo_data.hbmBack);
m_viewinfo_data.hbmBack = NULL;
}
// load custom background image and custom text color
m_viewinfo_data.cbSize = sizeof(m_viewinfo_data);
_DoFolderViewCB(SFVM_GET_CUSTOMVIEWINFO, 0, (LPARAM)&m_viewinfo_data);
/*turn the listview's redrawing back on and force it to draw*/
m_ListView.SetRedraw(TRUE);
UpdateListColors();
if (!(m_FolderSettings.fFlags & FWF_DESKTOP))
{
// redraw now
m_ListView.InvalidateRect(NULL, TRUE);
}
_DoFolderViewCB(SFVM_LISTREFRESHED, NULL, NULL);
return S_OK;
@ -1000,6 +1049,55 @@ LRESULT CDefView::OnEraseBackground(UINT uMsg, WPARAM wParam, LPARAM lParam, BOO
return 0;
}
static VOID
DrawTileBitmap(HDC hDC, LPCRECT prc, HBITMAP hbm, INT nWidth, INT nHeight, INT dx, INT dy)
{
INT x0 = prc->left, y0 = prc->top, x1 = prc->right, y1 = prc->bottom;
x0 += dx;
y0 += dy;
HDC hMemDC = CreateCompatibleDC(hDC);
HGDIOBJ hbmOld = SelectObject(hMemDC, hbm);
for (INT y = y0; y < y1; y += nHeight)
{
for (INT x = x0; x < x1; x += nWidth)
{
BitBlt(hDC, x, y, nWidth, nHeight, hMemDC, 0, 0, SRCCOPY);
}
}
SelectObject(hMemDC, hbmOld);
DeleteDC(hMemDC);
}
LRESULT CDefView::OnPrintClient(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
{
HDC hDC = (HDC)wParam;
RECT rc;
::GetClientRect(m_ListView, &rc);
if (m_viewinfo_data.hbmBack)
{
BITMAP bm;
if (::GetObject(m_viewinfo_data.hbmBack, sizeof(BITMAP), &bm))
{
INT dx = -(::GetScrollPos(m_ListView, SB_HORZ) % bm.bmWidth);
INT dy = -(::GetScrollPos(m_ListView, SB_VERT) % bm.bmHeight);
DrawTileBitmap(hDC, &rc, m_viewinfo_data.hbmBack, bm.bmWidth, bm.bmHeight, dx, dy);
}
}
else
{
FillRect(hDC, &rc, GetSysColorBrush(COLOR_WINDOW));
}
bHandled = TRUE;
return TRUE;
}
LRESULT CDefView::OnSysColorChange(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
{
/* Update desktop labels color */
@ -1039,14 +1137,6 @@ LRESULT CDefView::OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandl
TRACE("%p\n", this);
if (CreateList())
{
if (InitList())
{
FillList();
}
}
if (SUCCEEDED(QueryInterface(IID_PPV_ARG(IDropTarget, &pdt))))
{
if (FAILED(RegisterDragDrop(m_hWnd, pdt)))
@ -1063,6 +1153,14 @@ LRESULT CDefView::OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandl
m_hNotify = SHChangeNotifyRegister(m_hWnd, SHCNRF_InterruptLevel | SHCNRF_ShellLevel, SHCNE_ALLEVENTS, SHV_CHANGE_NOTIFY, 1, &ntreg);
}
if (CreateList())
{
if (InitList())
{
FillList();
}
}
/* _DoFolderViewCB(SFVM_GETNOTIFY, ?? ??) */
m_hAccel = LoadAcceleratorsW(shell32_hInstance, MAKEINTRESOURCEW(IDA_SHELLVIEW));