SimpleExplorer Sample (C++)
This sample illustrates implementation of a simple Windows Explorer/File Explorer.
The source code is located at C:\Program Files (x86)\Softelvdm\SftDirectory 3.5\Samples\VC++\SimpleExplorer\SimpleExplorerDlg.cpp or C:\Program Files\Softelvdm\SftDirectory 3.5\Samples\VC++\SimpleExplorer\SimpleExplorerDlg.cpp (on 32-bit Windows versions).
// SimpleExplorerDlg.cpp : implementation file
//
#include "stdafx.h"
#include "SimpleExplorer.h"
#include "SimpleExplorerDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CSimpleExplorerDlg dialog
CSimpleExplorerDlg::CSimpleExplorerDlg(CWnd* pParent /*=NULL*/)
: CDialog(CSimpleExplorerDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CSimpleExplorerDlg)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CSimpleExplorerDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CSimpleExplorerDlg)
DDX_Control(pDX, IDC_SFTDIRECTORYLEFT, m_DirLeft);
DDX_Control(pDX, IDC_SFTDIRECTORYRIGHT, m_DirRight);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CSimpleExplorerDlg, CDialog)
//{{AFX_MSG_MAP(CSimpleExplorerDlg)
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_UP_BUTTON, OnUpButton)
ON_BN_CLICKED(IDC_PROP_BUTTON, OnPropButton)
ON_BN_DOUBLECLICKED(IDC_UP_BUTTON, OnUpButton)
ON_BN_DOUBLECLICKED(IDC_PROP_BUTTON, OnPropButton)
ON_BN_CLICKED(IDC_PROP_NEWFOLDER, OnPropNewFolderClicked)
ON_BN_DOUBLECLICKED(IDC_PROP_NEWFOLDER, OnPropNewFolderClicked)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CSimpleExplorerDlg message handlers
BOOL CSimpleExplorerDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon
CDC* pDC;
pDC = GetDC();
LOGFONT lf;
CFont* pFont = GetFont();
pFont->GetLogFont(&lf);
lf.lfHeight = -MulDiv(12, pDC->GetDeviceCaps(LOGPIXELSY), 72);
m_FontBig.CreateFontIndirect(&lf);
ReleaseDC(pDC);
GetDlgItem(IDC_TITLE)->SetFont(&m_FontBig);
UpdateLeftButtons();
UpdateRightButtons();
ISftDirectoryPtr vDirRight = m_DirRight.GetControlUnknown();
vDirRight->MakeColumnsOptimal();
vDirRight->PutFont(NULL);
vDirRight->Headers->PutFont(NULL);
ISftDirectoryPtr vDirLeft = m_DirLeft.GetControlUnknown();
vDirLeft->PutFont(NULL);
vDirLeft->Headers->PutFont(NULL);
return TRUE; // return TRUE unless you set the focus to a control
}
// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.
void CSimpleExplorerDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
// The system calls this to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CSimpleExplorerDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CSimpleExplorerDlg::UpdateLeftButtons()
{
// Update the buttons dependent on the left tree
ISftDirectoryFolderPtr f;
// Enable/disable Up button
ISftDirectoryPtr vDirLeft = m_DirLeft.GetControlUnknown();
f = vDirLeft->CurrentFolder;
if (f != NULL) {
f = f->Parent;
}
GetDlgItem(IDC_UP_BUTTON)->EnableWindow(f != NULL);
}
void CSimpleExplorerDlg::UpdateRightButtons()
{
ISftDirectoryPtr vDirRight = m_DirRight.GetControlUnknown();
// Update the buttons dependent on the right side detaillist
ISftDirectoryFolderPtr f;
// Enable/disable properties button
f = vDirRight->CurrentFolder;
BOOL fEnable = FALSE;
if (vDirRight->SelectionCount > 0 && f != NULL) {
if (f->Can(_T("properties"))) {
fEnable = TRUE;
}
}
GetDlgItem(IDC_PROP_BUTTON)->EnableWindow(fEnable);
// Enable/disable New Folder button
fEnable = FALSE;
f = vDirRight->RootFolder;
if (f != NULL) {
if (f->Can(_T("NewFolder"))) {
fEnable = TRUE;
}
}
GetDlgItem(IDC_PROP_NEWFOLDER)->EnableWindow(fEnable);
}
void CSimpleExplorerDlg::OnUpButton()
{
ISftDirectoryPtr vDirLeft = m_DirLeft.GetControlUnknown();
// Move up on level in left side tree control
ISftDirectoryFolderPtr f;
f = vDirLeft->CurrentFolder;
if (f != NULL) {
f = f->Parent;
if (f != NULL) {
f->MakeCurrent(); // make it the current item
f->MakeVisible(); // make sure it's scrolled into view
}
}
}
void CSimpleExplorerDlg::OnPropButton()
{
ISftDirectoryPtr vDirRight = m_DirRight.GetControlUnknown();
// Display properties dialog for the currently selected item
ISftDirectoryFolderPtr f;
f = vDirRight->CurrentFolder;
if (vDirRight->SelectionCount > 0 && f != NULL) {
f->Do("properties");
}
}
void CSimpleExplorerDlg::OnPropNewFolderClicked()
{
ISftDirectoryPtr vDirRight = m_DirRight.GetControlUnknown();
// Create a new folder
ISftDirectoryFolderPtr f;
f = vDirRight->RootFolder;
if (f != NULL) {
f->Do("NewFolder");
}
}
void CSimpleExplorerDlg::OnKeyDown_SftDirectoryLeft(short FAR* KeyCode, short Shift)
{
// F5 automatically reloads left side, but we also want right side updated
if (*KeyCode == VK_F5) {
ISftDirectoryPtr vDirRight = m_DirRight.GetControlUnknown();
vDirRight->Reload(VARIANT_TRUE, VARIANT_TRUE);
}
}
void CSimpleExplorerDlg::OnKeyDown_SftDirectoryRight(short FAR* KeyCode, short Shift)
{
// F5 automatically reloads right side, but we also want left side updated
if (*KeyCode == VK_F5) {
ISftDirectoryPtr vDirLeft = m_DirLeft.GetControlUnknown();
vDirLeft->Reload(VARIANT_TRUE, VARIANT_TRUE);
}
}
void CSimpleExplorerDlg::OnSelectionFinal_SftDirectoryLeft()
{
ISftDirectoryPtr vDirRight = m_DirRight.GetControlUnknown();
ISftDirectoryPtr vDirLeft = m_DirLeft.GetControlUnknown();
UpdateLeftButtons();
vDirRight->Clear();
vDirRight->CancelMode();
vDirRight->Refresh();
if (vDirLeft->CurrentFolder != NULL)
vDirRight->TopMostFolderIDL = vDirLeft->CurrentFolder->ItemIDList;
else
vDirRight->TopMostFolderSpecial = specialSftDirectoryEmpty;
}
void CSimpleExplorerDlg::OnOpening_SftDirectoryRight(LPDISPATCH FAR* Folder, BOOL FAR* Allow)
{
ISftDirectoryFolderPtr f = *Folder;
_bstr_t bstrIDL;
ISftDirectoryPtr vDirLeft = m_DirLeft.GetControlUnknown();
// we're about to open a file/folder. If we can add the folder on the
// left side, that means we don't need to open it in a separate window
bstrIDL = f->ItemIDList; // the folder we are looking for
// this will add the complete hierarchy down to the folder in
// left tree (if possible)
ISftDirectoryFolderPtr FolderAdded;
HRESULT hr = vDirLeft->get_FolderUsingIDL(bstrIDL, VARIANT_FALSE, &FolderAdded);
// this will locate the exact item if we just added it
ISftDirectoryFolderPtr FolderFound;
hr = vDirLeft->get_FolderUsingIDL(bstrIDL, VARIANT_TRUE, &FolderFound);
if (SUCCEEDED(hr) && FolderFound != NULL) {
// The folder has been added on the left side
FolderFound->MakeCurrent(); // make it the current item
FolderFound->MakeVisible(); // make sure it's scrolled into view
*Allow = VARIANT_FALSE; // no need to open it
}
}
void CSimpleExplorerDlg::OnSelectionFinal_SftDirectoryRight()
{
UpdateRightButtons();
}
BEGIN_EVENTSINK_MAP(CSimpleExplorerDlg, CDialog)
//{{AFX_EVENTSINK_MAP(CSimpleExplorerDlg)
ON_EVENT(CSimpleExplorerDlg, IDC_SFTDIRECTORYLEFT, 23 /* SelectionFinal */, OnSelectionFinal_SftDirectoryLeft, VTS_NONE)
ON_EVENT(CSimpleExplorerDlg, IDC_SFTDIRECTORYRIGHT, 20 /* Opening */, OnOpening_SftDirectoryRight, VTS_PDISPATCH VTS_PBOOL)
ON_EVENT(CSimpleExplorerDlg, IDC_SFTDIRECTORYRIGHT, 23 /* SelectionFinal */, OnSelectionFinal_SftDirectoryRight, VTS_NONE)
ON_EVENT(CSimpleExplorerDlg, IDC_SFTDIRECTORYLEFT, 12 /* KeyDown */, OnKeyDown_SftDirectoryLeft, VTS_PI2 VTS_I2)
ON_EVENT(CSimpleExplorerDlg, IDC_SFTDIRECTORYRIGHT, 12 /* KeyDown */, OnKeyDown_SftDirectoryRight, VTS_PI2 VTS_I2)
//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()
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