void DesktopShellView::PositionIcons(int dir)
{
DWORD spacing = ListView_GetItemSpacing(_hwndListView, FALSE);
RECT work_area;
SystemParametersInfo(SPI_GETWORKAREA, 0, &work_area, 0);
/* disable default allignment */
SetWindowStyle(_hwndListView, GetWindowStyle(_hwndListView)&~LVS_ALIGNMASK);//|LVS_ALIGNTOP|LVS_AUTOARRANGE);
const POINTS& dir1 = s_align_dir1[_icon_algo];
const POINTS& dir2 = s_align_dir2[_icon_algo];
const POINTS& start_pos = s_align_start[_icon_algo];
int dir_x1 = dir1.x;
int dir_y1 = dir1.y;
int dir_x2 = dir2.x;
int dir_y2 = dir2.y;
int cx = LOWORD(spacing);
int cy = HIWORD(spacing);
int dx1 = dir_x1 * cx;
int dy1 = dir_y1 * cy;
int dx2 = dir_x2 * cx;
int dy2 = dir_y2 * cy;
int xoffset = (cx-32)/2;
int yoffset = 4/*(cy-32)/2*/;
int start_x = start_pos.x * (work_area.right - cx) + xoffset;
int start_y = start_pos.y * (work_area.bottom - cy) + yoffset;
int x = start_x;
int y = start_y;
int all = ListView_GetItemCount(_hwndListView);
int i1, i2;
if (dir > 0) {
i1 = 0;
i2 = all;
} else {
i1 = all-1;
i2 = -1;
}
IconMap pos_idx;
int cnt = 0;
int xhv = start_x;
int yhv = start_y;
for(int idx=i1; idx!=i2; idx+=dir) {
pos_idx[IconPos(y, x)] = idx;
if (_icon_algo == ARRANGE_BORDER_DOWN) {
if (++cnt & 1)
x = work_area.right - x - cx + 2*xoffset;
else {
y += dy1;
if (y + cy - 2 * yoffset > work_area.bottom) {
y = start_y;
start_x += dx2;
x = start_x;
}
}
continue;
}
else if (_icon_algo == ARRANGE_BORDER_HV) {
if (++cnt & 1)
x = work_area.right - x - cx + 2*xoffset;
else if (cnt & 2) {
yhv += cy;
y = yhv;
x = start_x;
if (y + cy - 2 * yoffset > work_area.bottom) {
start_x += cx;
xhv = start_x;
x = xhv;
start_y += cy;
yhv = start_y;
y = yhv;
}
} else {
xhv += cx;
x = xhv;
y = start_y;
if (x + cx - 2 * xoffset > work_area.right) {
start_x += cx;
xhv = start_x;
x = xhv;
start_y += cy;
yhv = start_y;
y = yhv;
}
}
continue;
}
else if (_icon_algo == ARRANGE_ROUNDABOUT) {
///@todo
}
x += dx1;
y += dy1;
if (x<0 || x+cx-2*xoffset>work_area.right) {
x = start_x;
y += dy2;
} else if (y<0 || y+cy-2*yoffset>work_area.bottom) {
y = start_y;
x += dx2;
}
}
// use a little trick to get the icons where we want them to be...
//for(IconMap::const_iterator it=pos_idx.end(); --it!=pos_idx.begin(); ) {
// const IconPos& pos = it->first;
// ListView_SetItemPosition32(_hwndListView, it->second, pos.second, pos.first);
//}
for(IconMap::const_iterator it=pos_idx.begin(); it!=pos_idx.end(); ++it) {
const IconPos& pos = it->first;
ListView_SetItemPosition32(_hwndListView, it->second, pos.second, pos.first);
}
}
void inline CShellBrowser::InsertAwaitingItems(BOOL bInsertIntoGroup)
{
LVITEM lv;
ULARGE_INTEGER ulFileSize;
unsigned int nPrevItems;
int nAdded = 0;
int iItemIndex;
nPrevItems = ListView_GetItemCount(m_hListView);
m_nAwaitingAdd = (int)m_AwaitingAddList.size();
if((nPrevItems + m_nAwaitingAdd) == 0)
{
if(m_bApplyFilter)
SendMessage(m_hOwner,WM_USER_FILTERINGAPPLIED,m_ID,TRUE);
else
SendMessage(m_hOwner,WM_USER_FOLDEREMPTY,m_ID,TRUE);
m_nTotalItems = 0;
return;
}
else if(!m_bApplyFilter)
{
SendMessage(m_hOwner,WM_USER_FOLDEREMPTY,m_ID,FALSE);
}
/* Make the listview allocate space (for internal data structures)
for all the items at once, rather than individually.
Acts as a speed optimization. */
ListView_SetItemCount(m_hListView,m_nAwaitingAdd + nPrevItems);
lv.mask = LVIF_TEXT|LVIF_IMAGE|LVIF_PARAM;
if(bInsertIntoGroup)
lv.mask |= LVIF_GROUPID;
/* Constant for each item. */
lv.iSubItem = 0;
if(m_bAutoArrange)
NListView::ListView_SetAutoArrange(m_hListView,FALSE);
for(auto itr = m_AwaitingAddList.begin();itr != m_AwaitingAddList.end();itr++)
{
if(!IsFileFiltered(itr->iItemInternal))
{
lv.iItem = itr->iItem;
lv.pszText = ProcessItemFileName(itr->iItemInternal);
lv.iImage = I_IMAGECALLBACK;
lv.lParam = itr->iItemInternal;
if(bInsertIntoGroup)
{
lv.iGroupId = DetermineItemGroup(itr->iItemInternal);
}
/* Insert the item into the list view control. */
iItemIndex = ListView_InsertItem(m_hListView,&lv);
if(itr->bPosition && m_ViewMode != VM_DETAILS)
{
POINT ptItem;
if(itr->iAfter != -1)
{
ListView_GetItemPosition(m_hListView,itr->iAfter,&ptItem);
}
else
{
ptItem.x = 0;
ptItem.y = 0;
}
/* The item will end up in the position AFTER iAfter. */
ListView_SetItemPosition32(m_hListView,iItemIndex,ptItem.x,ptItem.y);
}
if(m_ViewMode == VM_TILES)
{
SetTileViewItemInfo(iItemIndex,itr->iItemInternal);
}
if(m_bNewItemCreated)
{
LPITEMIDLIST pidlComplete = NULL;
pidlComplete = ILCombine(m_pidlDirectory,m_pExtraItemInfo[(int)itr->iItemInternal].pridl);
if(CompareIdls(pidlComplete,m_pidlNewItem))
m_bNewItemCreated = FALSE;
m_iIndexNewItem = iItemIndex;
CoTaskMemFree(pidlComplete);
}
/* If the file is marked as hidden, ghost it out. */
if(m_pwfdFiles[itr->iItemInternal].dwFileAttributes & FILE_ATTRIBUTE_HIDDEN)
{
ListView_SetItemState(m_hListView,iItemIndex,LVIS_CUT,LVIS_CUT);
}
/* Add the current file's size to the running size of the current directory. */
/* A folder may or may not have 0 in its high file size member.
It should either be zeroed, or never counted. */
ulFileSize.LowPart = m_pwfdFiles[itr->iItemInternal].nFileSizeLow;
ulFileSize.HighPart = m_pwfdFiles[itr->iItemInternal].nFileSizeHigh;
m_ulTotalDirSize.QuadPart += ulFileSize.QuadPart;
nAdded++;
}
else
{
m_FilteredItemsList.push_back(itr->iItemInternal);
}
}
if(m_bAutoArrange)
NListView::ListView_SetAutoArrange(m_hListView,TRUE);
m_nTotalItems = nPrevItems + nAdded;
if(m_ViewMode == VM_DETAILS)
{
TCHAR szDrive[MAX_PATH];
BOOL bNetworkRemovable = FALSE;
QueueUserAPC(SetAllColumnDataAPC,m_hThread,(ULONG_PTR)this);
StringCchCopy(szDrive,SIZEOF_ARRAY(szDrive),m_CurDir);
PathStripToRoot(szDrive);
if(GetDriveType(szDrive) == DRIVE_REMOVABLE ||
GetDriveType(szDrive) == DRIVE_REMOTE)
{
bNetworkRemovable = TRUE;
}
/* If the user has selected to disable folder sizes
on removable drives or networks, and we are currently
on such a drive, do not calculate folder sizes. */
if(m_bShowFolderSizes && !(m_bDisableFolderSizesNetworkRemovable && bNetworkRemovable))
QueueUserAPC(SetAllFolderSizeColumnDataAPC,m_hFolderSizeThread,(ULONG_PTR)this);
}
PositionDroppedItems();
m_AwaitingAddList.clear();
m_nAwaitingAdd = 0;
}