private void fvmw_ViewModeChanged(object sender, EventArgs e)
{
IShellView shellView = null;
try {
if (0 == shellBrowser.QueryActiveShellView(out shellView))
{
IFolderView folderView = shellView as IFolderView;
if (folderView != null)
{
FOLDERVIEWMODE currentMode = 0;
folderView.GetCurrentViewMode(ref currentMode);
FOLDERVIEWMODE mode = fvmw.ViewMode;
if (currentMode != mode)
{
folderView.SetCurrentViewMode(mode);
UpdateButtonImage(mode);
}
}
}
}
catch {
}
finally {
if (shellView != null)
{
Marshal.ReleaseComObject(shellView);
}
}
}
private FOLDERVIEWMODE GetCurrentViewMode()
{
IShellView shellView = null;
try {
if (0 == shellBrowser.QueryActiveShellView(out shellView))
{
IFolderView folderView = shellView as IFolderView;
if (folderView != null)
{
FOLDERVIEWMODE currentMode = 0;
folderView.GetCurrentViewMode(ref currentMode);
return(currentMode);
}
}
}
catch {
}
finally {
if (shellView != null)
{
Marshal.ReleaseComObject(shellView);
}
}
return(FOLDERVIEWMODE.FVM_ICON);
}
private void UpdateButtonImage(FOLDERVIEWMODE mode)
{
switch (mode)
{
case FOLDERVIEWMODE.FVM_THUMBSTRIP:
this.button.Image = Resource.imgFilm;
break;
case FOLDERVIEWMODE.FVM_THUMBNAIL:
this.button.Image = Resource.imgThumb;
break;
case FOLDERVIEWMODE.FVM_TILE:
this.button.Image = Resource.imgTiles;
break;
case FOLDERVIEWMODE.FVM_ICON:
this.button.Image = Resource.imgIcon;
break;
case FOLDERVIEWMODE.FVM_LIST:
this.button.Image = Resource.imgList;
break;
case FOLDERVIEWMODE.FVM_DETAILS:
this.button.Image = Resource.imgDetails;
break;
}
}
public void ShowWindow(Point pnt, FOLDERVIEWMODE fvmCurrentMode) {
const uint SWP_NOACTIVATE = 0x0010;
const int SW_SHOWNOACTIVATE = 4;
trackBar1.Value = ModeToInt(fvmCurrentMode);
// set the slider of trackbar under mouse position
RECT rct = GetThumbRect();
Point pntCenter = new Point(rct.left + rct.Width / 2, rct.top + rct.Height / 2);
Rectangle rctScreen = Screen.FromPoint(pnt).Bounds;
pnt.X = pnt.X - pntCenter.X;
pnt.Y = pnt.Y - pntCenter.Y;
// ensure visible in the screen
if(pnt.X < rctScreen.Left)
pnt.X = rctScreen.Left;
else if(pnt.X + Width > rctScreen.Right)
pnt.X = rctScreen.Right - Width;
if(pnt.Y < rctScreen.Top)
pnt.Y = rctScreen.Top;
else if(pnt.Y + Height > rctScreen.Bottom)
pnt.Y = rctScreen.Bottom - Height;
PInvoke.SetWindowPos(Handle, (IntPtr)(-1), pnt.X, pnt.Y, Width, Height, SWP_NOACTIVATE);
PInvoke.ShowWindow(Handle, SW_SHOWNOACTIVATE);
trackBar1.Focus();
}
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/// </summary>
/// <param name="mode"></param>
private void UpdateButtonImage(FOLDERVIEWMODE mode)
{
switch (mode)
{
case FOLDERVIEWMODE.FVM_THUMBSTRIP:
if (null != Resource.imgFilm)
{
button.Image = Resource.imgFilm;
}
break;
case FOLDERVIEWMODE.FVM_THUMBNAIL:
if (null != Resource.imgThumb)
{
button.Image = Resource.imgThumb;
}
break;
case FOLDERVIEWMODE.FVM_TILE:
if (null != Resource.imgTiles)
{
button.Image = Resource.imgTiles;
}
break;
case FOLDERVIEWMODE.FVM_ICON:
if (null != Resource.imgIcon)
{
button.Image = Resource.imgIcon;
}
break;
case FOLDERVIEWMODE.FVM_LIST:
if (null != Resource.imgList)
{
button.Image = Resource.imgList;
}
break;
case FOLDERVIEWMODE.FVM_DETAILS:
if (null != Resource.imgDetails)
{
button.Image = Resource.imgDetails;
}
break;
}
}
public void ShowWindow(Point pnt, FOLDERVIEWMODE fvmCurrentMode)
{
const uint SWP_NOACTIVATE = 0x0010;
const int SW_SHOWNOACTIVATE = 4;
trackBar1.Value = ModeToInt(fvmCurrentMode);
// set the slider of trackbar under mouse position
RECT rct = GetThumbRect();
Point pntCenter = new Point(rct.left + rct.Width / 2, rct.top + rct.Height / 2);
Rectangle rctScreen = Screen.FromPoint(pnt).Bounds;
pnt.X = pnt.X - pntCenter.X;
pnt.Y = pnt.Y - pntCenter.Y;
// ensure visible in the screen
if (pnt.X < rctScreen.Left)
{
pnt.X = rctScreen.Left;
}
else if (pnt.X + Width > rctScreen.Right)
{
pnt.X = rctScreen.Right - Width;
}
if (pnt.Y < rctScreen.Top)
{
pnt.Y = rctScreen.Top;
}
else if (pnt.Y + Height > rctScreen.Bottom)
{
pnt.Y = rctScreen.Bottom - Height;
}
PInvoke.SetWindowPos(Handle, (IntPtr)(-1), pnt.X, pnt.Y, Width, Height, SWP_NOACTIVATE);
PInvoke.ShowWindow(Handle, SW_SHOWNOACTIVATE);
trackBar1.Focus();
}
private static int ModeToInt(FOLDERVIEWMODE fvm)
{
switch (fvm)
{
case FOLDERVIEWMODE.FVM_THUMBSTRIP:
return(5);
case FOLDERVIEWMODE.FVM_THUMBNAIL:
return(4);
case FOLDERVIEWMODE.FVM_TILE:
return(3);
case FOLDERVIEWMODE.FVM_LIST:
return(1);
case FOLDERVIEWMODE.FVM_DETAILS:
return(0);
default:
return(2);
}
}
private static RECT GetLVITEMRECT(IntPtr hwndListView, int iItem, bool fSubDirTip, FOLDERVIEWMODE fvm)
{
// get the bounding rectangle of item specified by iItem, in the screen coordinates.
// fSubDirTip true to get RECT depending on view style, false to get RECT by LVIR_BOUNDS
const uint LVM_FIRST = 0x1000;
const uint LVM_GETVIEW = (LVM_FIRST + 143);
const uint LVM_GETITEMW = (LVM_FIRST + 75);
const uint LVM_GETSTRINGWIDTHW = (LVM_FIRST + 87);
const uint LVM_GETITEMSPACING = (LVM_FIRST + 51);
const int LVIR_BOUNDS = 0;
const int LVIR_ICON = 1;
const int LVIR_LABEL = 2;
const int LV_VIEW_ICON = 0x0000;
const int LV_VIEW_DETAILS = 0x0001;
const int LV_VIEW_LIST = 0x0003;
const int LV_VIEW_TILE = 0x0004;
const int LVIF_TEXT = 0x00000001;
int view = (int)PInvoke.SendMessage(hwndListView, LVM_GETVIEW, IntPtr.Zero, IntPtr.Zero);
int code = view == LV_VIEW_DETAILS ? LVIR_LABEL : LVIR_BOUNDS;
bool fIcon = false; // for XP
bool fList = false; // for XP
if(fSubDirTip) {
switch(view) {
case LV_VIEW_ICON:
fIcon = !QTUtility.IsVista;
code = LVIR_ICON;
break;
case LV_VIEW_DETAILS:
code = LVIR_LABEL;
break;
case LV_VIEW_LIST:
if(!QTUtility.IsVista) {
fList = true;
code = LVIR_ICON;
}
else {
code = LVIR_LABEL;
}
break;
case LV_VIEW_TILE:
code = LVIR_ICON;
break;
default:
// Here only in case of Vista LV_VIEW_SMALLICON.
code = LVIR_BOUNDS;
break;
}
}
// get item rectangle
RECT rct = PInvoke.ListView_GetItemRect(hwndListView, iItem, 0, code);
// convert to screen coordinates
PInvoke.MapWindowPoints(hwndListView, IntPtr.Zero, ref rct, 2);
// adjust rct
// these magic numbers have no logical meanings
if(fIcon) {
// XP, subdirtip.
// THUMBNAIL, THUMBSTRIP or ICON.
if(fvm == FOLDERVIEWMODE.FVM_THUMBNAIL || fvm == FOLDERVIEWMODE.FVM_THUMBSTRIP) {
rct.right -= 13;
}
else // fvm == FVM_ICON
{
int currentIconSpacing =
(int)(long)PInvoke.SendMessage(hwndListView, LVM_GETITEMSPACING, IntPtr.Zero, IntPtr.Zero);
Size sz = SystemInformation.IconSize;
rct.right = rct.left + (((currentIconSpacing & 0xFFFF) - sz.Width)/2) + sz.Width + 8;
rct.bottom = rct.top + sz.Height + 6;
}
}
else if(fList) {
// XP, subdirtip.
// calculate item text rectangle
LVITEM lvitem = new LVITEM();
lvitem.pszText = Marshal.AllocCoTaskMem(520);
lvitem.cchTextMax = 260;
lvitem.iItem = iItem;
lvitem.mask = LVIF_TEXT;
IntPtr pLI = Marshal.AllocCoTaskMem(Marshal.SizeOf(lvitem));
Marshal.StructureToPtr(lvitem, pLI, false);
PInvoke.SendMessage(hwndListView, LVM_GETITEMW, IntPtr.Zero, pLI);
int w = (int)PInvoke.SendMessage(hwndListView, LVM_GETSTRINGWIDTHW, IntPtr.Zero, lvitem.pszText);
w += 20;
Marshal.FreeCoTaskMem(lvitem.pszText);
Marshal.FreeCoTaskMem(pLI);
rct.right += w;
rct.top += 2;
rct.bottom += 2;
}
return rct;
}
private void labelButtons_Click(object sender, EventArgs e)
{
FOLDERVIEWMODE mode = (FOLDERVIEWMODE)((LabelEx)sender).Tag;
trackBar1.Value = ModeToInt(mode);
}
private static int ModeToInt(FOLDERVIEWMODE fvm) {
switch(fvm) {
case FOLDERVIEWMODE.FVM_THUMBSTRIP:
return 5;
case FOLDERVIEWMODE.FVM_THUMBNAIL:
return 4;
case FOLDERVIEWMODE.FVM_TILE:
return 3;
case FOLDERVIEWMODE.FVM_LIST:
return 1;
case FOLDERVIEWMODE.FVM_DETAILS:
return 0;
default:
return 2;
}
}
private void UpdateButtonImage(FOLDERVIEWMODE mode) {
switch(mode) {
case FOLDERVIEWMODE.FVM_THUMBSTRIP:
this.button.Image = Resource.imgFilm;
break;
case FOLDERVIEWMODE.FVM_THUMBNAIL:
this.button.Image = Resource.imgThumb;
break;
case FOLDERVIEWMODE.FVM_TILE:
this.button.Image = Resource.imgTiles;
break;
case FOLDERVIEWMODE.FVM_ICON:
this.button.Image = Resource.imgIcon;
break;
case FOLDERVIEWMODE.FVM_LIST:
this.button.Image = Resource.imgList;
break;
case FOLDERVIEWMODE.FVM_DETAILS:
this.button.Image = Resource.imgDetails;
break;
}
}
public HRESULT SetViewModeAndIconSize(FOLDERVIEWMODE uViewMode, int iImageSize)
{
return(((delegate * unmanaged <IFolderView2 *, FOLDERVIEWMODE, int, int>)(lpVtbl[35]))((IFolderView2 *)Unsafe.AsPointer(ref this), uViewMode, iImageSize));
}
