void PZoomInteraction::RepeatZoom(const PZoomInteraction& inZoomInteraction, int off_x, int off_y)
{
if (inZoomInteraction.mLastZoomIn)
{
mX1 = inZoomInteraction.mX1-off_x;
mX2 = inZoomInteraction.mX2-off_x;
mY1 = inZoomInteraction.mY1-off_y;
mY2 = inZoomInteraction.mY2-off_y;
DoZoomIn();
}
else
DoZoomOut();
}
/*
OnChar()
*/
void CWallBrowserStretchView::OnChar(UINT nChar,UINT nRepCnt,UINT nFlags)
{
switch(nChar)
{
case '+':
{
if(m_nViewType==VIEWTYPE_SCROLL)
{
SetZoomMode(MODE_ZOOMIN);
TRACE("zoom ratio: %.2f\n",GetZoomRatio());
if(GetZoomRatio() <= 28.42)
DoZoomIn();
return;
}
}
case '-':
{
if(m_nViewType==VIEWTYPE_SCROLL)
{
SetZoomMode(MODE_ZOOMOUT);
TRACE("zoom ratio: %.2f\n",GetZoomRatio());
if(GetZoomRatio() >= 0.04)
DoZoomOut();
return;
}
}
case '=':
{
if(m_nViewType==VIEWTYPE_SCROLL)
{
SetZoomMode(MODE_ZOOMOFF);
NotifyRanges();
Invalidate(TRUE);
return;
}
}
}
CZoomView::OnChar(nChar,nRepCnt,nFlags);
}
bool PZoomInteraction::HandleMouseEvent (const PMouseEvent &inEvent) {
if (!mDragging) {
if (inEvent.IsMouseDown ()) {
/* if (inEvent.IsOnlyShiftKeyDown ()) {
DoZoomOut ();
return true;
}*/
if (inEvent.HasModifierKeys ()) {
return false;
}
mDragging = true;
mX1 = mX2 = inEvent.mX;
mY1 = mY2 = inEvent.mY;
return true;
}
}
else {
if (inEvent.IsMouseUp ()) {
// here we should zoom
if (mX1 == mX2 && mY1 == mY2) {
mDragging = false;
DoZoomOut ();
return true;
// return false;// emtpy area
}
DoZoomIn ();
mDragging = false;
return true;
}
if (inEvent.IsMouseMove ()) {
mX2 = inEvent.mX;
mY2 = inEvent.mY;
return true;
}
}
return false;
}
/*
OnUpdate()
*/
void CWallBrowserStretchView::OnUpdate(CView* pSender,LPARAM lHint,CObject* pHint)
{
CWaitCursor cursor;
BOOL bHint = FALSE;
static BOOL bTreeExpandedEx = FALSE;
if(lHint & ONUPDATE_FLAG_TREEEXPANDEDEX)
{
TRACE("%s(%d): receiving ONUPDATE_FLAG_TREEEXPANDEDEX\n",__FILE__,__LINE__);
bTreeExpandedEx = TRUE;
}
if(!bTreeExpandedEx)
goto done;
// cambio immagine/libreria correnti
if((lHint & ONUPDATE_FLAG_FILECHANGED) || (lHint & ONUPDATE_FLAG_DEFAULTLIBRARY))
{
TRACE("%s(%d): receiving ONUPDATE_FLAG_FILECHANGED || ONUPDATE_FLAG_DEFAULTLIBRARY\n",__FILE__,__LINE__);
m_bLoaded = FALSE;
CWallBrowserDoc* pDoc = (CWallBrowserDoc*)GetDocument();
CImage* pImage = NULL;
memset(m_szStatus,'\0',sizeof(m_szStatus));
if(pDoc)
{
// salva l'immagine se e' stata modificata
if(pDoc->IsModified())
pDoc->SaveModified(m_szFileName);
pImage = pDoc->GetImage();
if(pImage)
{
if(pDoc->HaveFileName())
{
// ricava il nome del file da caricare
_snprintf(m_szFileName,
sizeof(m_szFileName)-1,
"%s%s",
pDoc->GetPathName(),
pDoc->GetFileName()
);
strcpyn(m_szStatus,"loading...",sizeof(m_szStatus));
if(m_pMainFrameStatusBar)
m_pMainFrameStatusBar->SetPaneText(ID_INDICATOR_FILENAME_ID,m_szStatus);
pDoc->SetTitle(m_szStatus);
// carica l'immagine
m_bHavePicture = TRUE;
if(pImage->Load(m_szFileName))
{
m_bLoaded = TRUE;
strcpyn(m_szStatus,pDoc->GetFileName(),sizeof(m_szStatus));
}
else
{
m_bLoaded = FALSE;
_snprintf(m_szStatus,sizeof(m_szStatus)-1,"load failed - %s",pDoc->GetFileName());
}
pDoc->SetTitle(m_szStatus);
pDoc->SetPictureFlag(m_bLoaded);
if(!m_bLoaded)
pDoc->ResetFileName();
}
}
}
// caricamento dell'immagine riuscito
if(m_bLoaded)
{
if(m_pMainFrameStatusBar)
{
EnableMenu();
m_pMainFrameStatusBar->SetPaneText(ID_INDICATOR_FILENAME_ID,m_szStatus);
}
}
else // caricamento fallito
{
if(m_pMainFrameStatusBar)
{
DisableMenu();
m_pMainFrameStatusBar->SetPaneText(ID_INDICATOR_FILENAME_ID,"");
//m_pMainFrameStatusBar->SetPaneText(ID_INDICATOR_FILES_ID,"");
m_pMainFrameStatusBar->SetPaneText(ID_INDICATOR_INFO_ID,"");
m_pMainFrameStatusBar->SetPaneText(ID_INDICATOR_LIBRARY_ID,"");
m_pMainFrameStatusBar->SetPaneText(ID_INDICATOR_MEM_ID,"");
//m_pMainFrameStatusBar->SetPaneText(ID_INDICATOR_PICTURES_ID,"");
m_pMainFrameStatusBar->SetPaneText(ID_INDICATOR_RATIO_ID,"");
m_pMainFrameStatusBar->SetPaneText(ID_INDICATOR_ZOOM_ID,"");
}
}
// aggiorna la GUI
CWnd* pWnd = AfxGetMainWnd();
if(pWnd)
{
pWnd->SendMessage(WM_FILE_SAVE,FALSE,0L);
pWnd->SendMessage(WM_FILE_SAVE_AS,m_bLoaded,0L);
pWnd->SendMessage(WM_FILE_MOVE,m_bHavePicture,0L);
pWnd->SendMessage(WM_FILE_DELETE,m_bHavePicture,0L);
pWnd->SendMessage(WM_EDIT_COPY,m_bLoaded,0L);
pWnd->SendMessage(WM_EDIT_PASTE,m_bLoaded ? ::IsClipboardFormatAvailable(CF_DIB) : FALSE,0L);
pWnd->SendMessage(WM_EDIT_UNDO,FALSE,0L);
pWnd->PostMessage(WM_EDIT_REDO,FALSE,0L);
UndoEmpty();
RedoEmpty();
}
// per evitare di cancellare il fondo se la nuova immagine e' piu' grande della precedente
BOOL bEraseOnInvalidate = TRUE;
// modalita' stretch, calcola la dimensione dello stretch
if(m_nViewType==VIEWTYPE_STRETCH)
{
// modalita' visualizzazione (centrato/text)
SetCenterMode(FALSE);
SetMapMode(MM_TEXT);
SetCursorZoomMode(CURSOR_MODE_NONE);
// elimina le barre dello scroll
CSize size(0,0);
SetZoomSizes(size);
bEraseOnInvalidate = m_bLoaded ? ((lHint & ONUPDATE_FLAG_DEFAULTLIBRARY) ? FALSE : TRUE) : TRUE;
if(bEraseOnInvalidate && m_rcInvalid.right!=-1 && m_rcInvalid.bottom!=-1 && pImage)
{
double nRemains = 0.0;
double nWidth = (double)pImage->GetWidth();
double nHeight = (double)pImage->GetHeight();
GetClientRect(&m_rcClient);
if(nHeight > (double)m_rcClient.bottom)
{
nRemains = FDIV(nHeight,(double)m_rcClient.bottom);
if(nRemains > 0.0)
{
nHeight = FDIV(nHeight,nRemains);
nWidth = FDIV(nWidth,nRemains);
}
}
if(nWidth > (double)m_rcClient.right)
{
nRemains = FDIV(nWidth,(double)m_rcClient.right);
if(nRemains > 0.0)
{
nHeight = FDIV(nHeight,nRemains);
nWidth = FDIV(nWidth,nRemains);
}
}
if((int)nWidth >= m_rcInvalid.right && (int)nHeight >= m_rcInvalid.bottom)
bEraseOnInvalidate = FALSE;
}
}
// modalita' scroll
else if(m_nViewType==VIEWTYPE_SCROLL)
{
// deve cancellare lo sfondo e riposizionare le barre dello scroll a 0,0
bEraseOnInvalidate = TRUE;
POINT point = {0,0};
ScrollToPosition(point);
NotifyRanges();
}
// (ri)disegna l'immagine
Invalidate(bEraseOnInvalidate);
bHint = TRUE;
}
// click sull'immagine gia' selezionata (ma non attiva)
if(lHint & ONUPDATE_FLAG_FILESELECTED)
{
TRACE("%s(%d): receiving ONUPDATE_FLAG_FILESELECTED\n",__FILE__,__LINE__);
CWallBrowserDoc* pDoc = (CWallBrowserDoc*)GetDocument();
if(pDoc)
{
CImage* pImage = pDoc->GetImage();
if(pImage && pImage->GetWidth() > 0 && pImage->GetHeight() > 0)
{
// aggiorna la GUI
CWnd* pWnd = AfxGetMainWnd();
if(pWnd)
{
m_bLoaded = pDoc->GetPictureFlag();
pWnd->SendMessage(WM_FILE_SAVE,pDoc->IsModified(),0L);
pWnd->SendMessage(WM_FILE_SAVE_AS,m_bLoaded,0L);
pWnd->SendMessage(WM_FILE_MOVE,m_bHavePicture,0L);
pWnd->SendMessage(WM_FILE_DELETE,m_bHavePicture,0L);
pWnd->SendMessage(WM_EDIT_COPY,m_bLoaded,0L);
pWnd->SendMessage(WM_EDIT_PASTE,m_bLoaded ? ::IsClipboardFormatAvailable(CF_DIB) : FALSE,0L);
pWnd->SendMessage(WM_EDIT_UNDO,UndoEnabled(),0L);
pWnd->PostMessage(WM_EDIT_REDO,RedoEnabled(),0L);
}
}
}
//Invalidate(FALSE);
bHint = TRUE;
}
// eliminazione dell'immagine corrente
if(lHint & ONUPDATE_FLAG_FILEDELETED)
{
TRACE("%s(%d): receiving ONUPDATE_FLAG_FILEDELETED\n",__FILE__,__LINE__);
// se l'immagine e' stata modificata resetta il flag
CWallBrowserDoc* pDoc = (CWallBrowserDoc*)GetDocument();
if(pDoc->IsModified())
pDoc->SetModifiedFlag(FALSE);
// aggiorna la GUI
CWnd* pWnd = AfxGetMainWnd();
if(pWnd)
{
pWnd->SendMessage(WM_FILE_SAVE,FALSE,0L);
pWnd->SendMessage(WM_FILE_SAVE_AS,FALSE,0L);
pWnd->SendMessage(WM_FILE_MOVE,FALSE,0L);
pWnd->SendMessage(WM_FILE_DELETE,FALSE,0L);
pWnd->SendMessage(WM_EDIT_COPY,FALSE,0L);
pWnd->SendMessage(WM_EDIT_PASTE,FALSE,0L);
pWnd->SendMessage(WM_EDIT_UNDO,FALSE,0L);
pWnd->PostMessage(WM_EDIT_REDO,FALSE,0L);
UndoEmpty();
RedoEmpty();
}
// deve disegnare il contenuto della nuova immagine o ripulire l'area client se era l'unica immagine della directory
Invalidate(TRUE);
// se il file era l'unico nella directory
pDoc->SetTitle(pDoc->GetPathName());
bHint = TRUE;
}
// cambio della directory corrente
if(lHint & ONUPDATE_FLAG_DIRCHANGED || lHint & ONUPDATE_FLAG_DIRSELECTED)
{
TRACE("%s(%d): receiving ONUPDATE_FLAG_DIRCHANGED || ONUPDATE_FLAG_DIRSELECTED\n",__FILE__,__LINE__);
m_bLoaded = FALSE;
// salva l'immagine se e' stata modificata
CWallBrowserDoc* pDoc = (CWallBrowserDoc*)GetDocument();
if(pDoc)
{
if(pDoc->IsModified())
pDoc->SaveModified(m_szFileName);
m_bLoaded = pDoc->GetPictureFlag();
}
// aggiorna la GUI
CWnd* pWnd = AfxGetMainWnd();
if(pWnd)
{
pWnd->SendMessage(WM_FILE_SAVE,FALSE,0L);
pWnd->SendMessage(WM_FILE_SAVE_AS,m_bLoaded,0L);
pWnd->SendMessage(WM_FILE_MOVE,m_bHavePicture,0L);
pWnd->SendMessage(WM_FILE_DELETE,m_bHavePicture,0L);
pWnd->SendMessage(WM_EDIT_COPY,m_bLoaded,0L);
pWnd->SendMessage(WM_EDIT_PASTE,m_bLoaded ? ::IsClipboardFormatAvailable(CF_DIB) : FALSE,0L);
pWnd->SendMessage(WM_EDIT_UNDO,FALSE,0L);
pWnd->PostMessage(WM_EDIT_REDO,FALSE,0L);
UndoEmpty();
RedoEmpty();
}
// deve ripulire l'area client
if(m_nViewType==VIEWTYPE_SCROLL)
NotifyRanges();
Invalidate(TRUE);
bHint = TRUE;
}
// e' stato svuotato lo stack per l'undo/redo
if(lHint & ONUPDATE_FLAG_EMPTYSTACK)
{
TRACE("%s(%d): receiving ONUPDATE_FLAG_EMPTYSTACK\n",__FILE__,__LINE__);
CWnd* pWnd = AfxGetMainWnd();
if(pWnd)
{
pWnd->SendMessage(WM_EDIT_UNDO,FALSE,0L);
pWnd->PostMessage(WM_EDIT_REDO,FALSE,0L);
}
UndoEmpty();
RedoEmpty();
bHint = TRUE;
}
// e' stata cambiata la modalita' di visualizzazione (stretch/scroll)
if(lHint & ONUPDATE_FLAG_VIEWTYPE)
{
TRACE("%s(%d): receiving ONUPDATE_FLAG_VIEWTYPE\n",__FILE__,__LINE__);
m_nViewType = m_pWinAppEx->m_Config.GetNumber(WALLBROWSER_OPTIONS_KEY,WALLBROWSER_VIEWTYPE_KEY);
if(m_nViewType==VIEWTYPE_SCROLL)
{
// modalita' visualizzazione (centrato/isotropic)
SetCenterMode(TRUE);
SetMapMode(MM_ANISOTROPIC);
SetCursorZoomMode(CURSOR_MODE_BYCLICK);
// risposiziona le barre dello scroll a 0,0
POINT point = {0,0};
ScrollToPosition(point);
SetZoomMode(MODE_ZOOMOFF);
NotifyRanges();
}
else if(m_nViewType==VIEWTYPE_STRETCH)
{
// modalita' visualizzazione (centrato/text)
SetCenterMode(FALSE);
SetMapMode(MM_TEXT);
SetCursorZoomMode(CURSOR_MODE_NONE);
// elimina le barre dello scroll
CSize size(0,0);
SetZoomSizes(size);
}
// deve ridisegnare l'immagine ripulendo l'area client (dato che passa da una modalita' all'altra)
Invalidate(TRUE);
bHint = TRUE;
}
// e' stata cambiata la modalita' di disegno
if((lHint & ONUPDATE_FLAG_DRAWSTRETCHDIBITS) || (lHint & ONUPDATE_FLAG_DRAWSTRETCHBLT) || (lHint & ONUPDATE_FLAG_DRAWVFWDRAWDIB))
{
TRACE("%s(%d): receiving ONUPDATE_FLAG_DRAWSTRETCHDIBITS || ONUPDATE_FLAG_DRAWSTRETCHBLT || ONUPDATE_FLAG_DRAWVFWDRAWDIB\n",__FILE__,__LINE__);
if(lHint & ONUPDATE_FLAG_DRAWSTRETCHDIBITS)
m_nDrawMode = DRAW_STRETCHDIBITS;
else if(lHint & ONUPDATE_FLAG_DRAWSTRETCHBLT)
m_nDrawMode = DRAW_STRETCHBLT;
else if (lHint & ONUPDATE_FLAG_DRAWVFWDRAWDIB)
m_nDrawMode = DRAW_VFWDRAWDIB;
else
m_nDrawMode = DEFAULT_DRAWMODE;
// deve ridisegnare l'immagine senza ripulire l'area client (cambia solo la modalita' di disegno, non quella di visualizzazione)
Invalidate(FALSE);
bHint = TRUE;
}
// e' stato cambiato il fattore di zoom
if((lHint & ONUPDATE_FLAG_ZOOMIN) || (lHint & ONUPDATE_FLAG_ZOOMOUT) || (lHint & ONUPDATE_FLAG_ZOOMRESET))
{
TRACE("%s(%d): receiving ONUPDATE_FLAG_ZOOMIN || ONUPDATE_FLAG_ZOOMOUT || ONUPDATE_FLAG_ZOOMRESET\n",__FILE__,__LINE__);
if(lHint & ONUPDATE_FLAG_ZOOMIN)
{
SetZoomMode(MODE_ZOOMIN);
TRACE("zoom ratio: %.2f\n",GetZoomRatio());
if(GetZoomRatio() <= 28.42)
DoZoomIn();
}
else if(lHint & ONUPDATE_FLAG_ZOOMOUT)
{
SetZoomMode(MODE_ZOOMOUT);
TRACE("zoom ratio: %.2f\n",GetZoomRatio());
if(GetZoomRatio() >= 0.04)
DoZoomOut();
}
else if(lHint & ONUPDATE_FLAG_ZOOMRESET)
{
SetZoomMode(MODE_ZOOMOFF);
NotifyRanges();
Invalidate(TRUE);
}
bHint = TRUE;
}
done:
// classe base
if(!bHint)
CZoomView::OnUpdate(pSender,lHint,pHint);
}
