yachat/qt-patches/015-win-all-getopenfilename thumbnails.patch

diff --git a/src/gui/dialogs/qfiledialog_win.cpp b/src/gui/dialogs/qfiledialog_win.cpp
index d0b1ae6..a98a0d5 100644
--- a/src/gui/dialogs/qfiledialog_win.cpp
+++ b/src/gui/dialogs/qfiledialog_win.cpp
@@ -201,6 +201,55 @@ static QByteArray aTitle;
 static QByteArray aFilter;
 // Use ANSI strings and API
 
+UINT_PTR CALLBACK ya_ofn_hook_proc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+	Q_UNUSED(wParam);
+	Q_UNUSED(lParam);
+
+	static const WPARAM SHVIEW_ICON = 0x7029;
+	static const WPARAM SHVIEW_LIST = 0x702B;
+	static const WPARAM SHVIEW_REPORT = 0x702C;
+	static const WPARAM SHVIEW_THUMBNAIL = 0x702D;
+	static const WPARAM SHVIEW_TILE = 0x702E;
+
+	static const WPARAM VISTA_TABLE = 0x704B;
+	static const WPARAM VISTA_TILE = 0x704C;
+	static const WPARAM VISTA_HUGE_ICONS = 0x704D;
+	static const WPARAM VISTA_MEDIUM_ICONS = 0x704E;
+	static const WPARAM VISTA_BIG_ICONS = 0x704F;
+	static const WPARAM VISTA_SMALL_ICONS = 0x7050;
+	static const WPARAM VISTA_LIST = 0x7051;
+
+	static bool bLvSetupDone = false;
+	switch (uMsg) {
+	case WM_INITDIALOG:
+		bLvSetupDone = false;
+		break;
+	case WM_NOTIFY:
+		if (!bLvSetupDone) {
+			HWND hWndParent = GetParent(hwnd);
+			HWND hwndLv;
+			QT_WA({
+				hwndLv = FindWindowExW(hWndParent, 0, L"SHELLDLL_DefView", 0);
+			} , {
+				hwndLv = FindWindowExA(hWndParent, 0, "SHELLDLL_DefView", 0);
+			});
+			if (hwndLv) {
+				if (QSysInfo::WindowsVersion >= QSysInfo::WV_VISTA)
+					SendMessage(hwndLv, WM_COMMAND, VISTA_MEDIUM_ICONS, 0);
+				else
+					SendMessage(hwndLv, WM_COMMAND, SHVIEW_THUMBNAIL, 0);
+				bLvSetupDone = true;
+			}
+		}
+		break;
+	default:
+		;
+	}
+
+	return 0;
+}
+
 // If you change this, then make sure you change qt_win_make_OFN (below) too
 static OPENFILENAMEA *qt_win_make_OFNA(QWidget *parent,
 				       const QString &initialSelection,
@@ -251,7 +300,7 @@ static OPENFILENAMEA *qt_win_make_OFNA(QWidget *parent,
     ofn->nMaxFile = maxLen;
     ofn->lpstrInitialDir = aInitDir.data();
     ofn->lpstrTitle = aTitle.data();
-    ofn->Flags = (OFN_NOCHANGEDIR | OFN_HIDEREADONLY | OFN_EXPLORER);
+    ofn->Flags = (OFN_NOCHANGEDIR | OFN_HIDEREADONLY | OFN_EXPLORER | OFN_ENABLEHOOK);
 
     if (mode == QFileDialog::ExistingFile ||
          mode == QFileDialog::ExistingFiles)
@@ -261,6 +310,10 @@ static OPENFILENAMEA *qt_win_make_OFNA(QWidget *parent,
     if (!(options & QFileDialog::DontConfirmOverwrite))
         ofn->Flags |= OFN_OVERWRITEPROMPT;
 
+	if (options & 0x8000) {
+		ofn->lpfnHook = ya_ofn_hook_proc;
+	}
+
     return ofn;
 }
 
@@ -327,7 +380,7 @@ static OPENFILENAME* qt_win_make_OFN(QWidget *parent,
     ofn->nMaxFile = maxLen;
     ofn->lpstrInitialDir = (TCHAR *)tInitDir.utf16();
     ofn->lpstrTitle = (TCHAR *)tTitle.utf16();
-    ofn->Flags = (OFN_NOCHANGEDIR | OFN_HIDEREADONLY | OFN_EXPLORER);
+    ofn->Flags = (OFN_NOCHANGEDIR | OFN_HIDEREADONLY | OFN_EXPLORER | OFN_ENABLEHOOK);
     if (mode == QFileDialog::ExistingFile ||
          mode == QFileDialog::ExistingFiles)
         ofn->Flags |= (OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST);
@@ -336,10 +389,13 @@ static OPENFILENAME* qt_win_make_OFN(QWidget *parent,
     if (!(options & QFileDialog::DontConfirmOverwrite))
         ofn->Flags |= OFN_OVERWRITEPROMPT;
 
+	if (options & 0x8000) {
+		ofn->lpfnHook = ya_ofn_hook_proc;
+	}
+
     return ofn;
 }
 
-
 static void qt_win_clean_up_OFN(OPENFILENAME **ofn)
 {
     delete [] (*ofn)->lpstrFile;