void
ShowImageWindow::MessageReceived(BMessage *message)
{
switch (message->what) {
case MSG_MODIFIED:
// If image has been modified due to a Cut or Paste
fModified = true;
break;
case MSG_OUTPUT_TYPE:
// User clicked Save As then choose an output format
if (!fSavePanel)
// If user doesn't already have a save panel open
_SaveAs(message);
break;
case MSG_SAVE_PANEL:
// User specified where to save the output image
_SaveToFile(message);
break;
case B_CANCEL:
delete fSavePanel;
fSavePanel = NULL;
break;
case MSG_UPDATE_STATUS: {
int32 pages = fImageView->PageCount();
int32 curPage = fImageView->CurrentPage();
bool benable = (pages > 1) ? true : false;
_EnableMenuItem(fBar, MSG_PAGE_FIRST, benable);
_EnableMenuItem(fBar, MSG_PAGE_LAST, benable);
_EnableMenuItem(fBar, MSG_PAGE_NEXT, benable);
_EnableMenuItem(fBar, MSG_PAGE_PREV, benable);
_EnableMenuItem(fBar, MSG_FILE_NEXT, fImageView->HasNextFile());
_EnableMenuItem(fBar, MSG_FILE_PREV, fImageView->HasPrevFile());
if (fGoToPageMenu->CountItems() != pages) {
// Only rebuild the submenu if the number of
// pages is different
while (fGoToPageMenu->CountItems() > 0)
// Remove all page numbers
delete fGoToPageMenu->RemoveItem(0L);
for (int32 i = 1; i <= pages; i++) {
// Fill Go To page submenu with an entry for each page
BMessage *pgomsg = new BMessage(MSG_GOTO_PAGE);
pgomsg->AddInt32("page", i);
char shortcut = 0;
if (i < 10) {
shortcut = '0' + i;
} else if (i == 10) {
shortcut = '0';
}
BString strCaption;
strCaption << i;
BMenuItem *item = new BMenuItem(strCaption.String(), pgomsg,
shortcut);
if (curPage == i)
item->SetMarked(true);
fGoToPageMenu->AddItem(item);
}
} else {
// Make sure the correct page is marked
BMenuItem *pcurItem;
pcurItem = fGoToPageMenu->ItemAt(curPage - 1);
if (!pcurItem->IsMarked()) {
pcurItem->SetMarked(true);
}
}
// Disable the Invert menu item if the bitmap color space
// is B_CMAP8. (B_CMAP8 is currently unsupported by the
// invert algorithm)
color_space colors = B_NO_COLOR_SPACE;
message->FindInt32("colors", reinterpret_cast<int32 *>(&colors));
_EnableMenuItem(fBar, MSG_INVERT, (colors != B_CMAP8));
BString status;
bool messageProvidesSize = false;
if (message->FindInt32("width", &fWidth) >= B_OK
&& message->FindInt32("height", &fHeight) >= B_OK) {
status << fWidth << "x" << fHeight;
messageProvidesSize = true;
}
BString str;
if (message->FindString("status", &str) == B_OK && str.Length() > 0) {
if (status.Length() > 0)
status << ", ";
status << str;
}
if (messageProvidesSize) {
_UpdateResizerWindow(fWidth, fHeight);
if (!fImageView->GetZoomToBounds()
&& !fImageView->GetShrinkToBounds()
&& !fFullScreen)
WindowRedimension(fImageView->GetBitmap());
}
fStatusView->SetText(status);
UpdateTitle();
} break;
case MSG_UPDATE_STATUS_TEXT: {
BString status;
status << fWidth << "x" << fHeight;
BString str;
if (message->FindString("status", &str) == B_OK && str.Length() > 0) {
status << ", " << str;
fStatusView->SetText(status);
}
} break;
case MSG_SELECTION: {
// The view sends this message when a selection is
// made or the selection is cleared so that the window
// can update the state of the appropriate menu items
bool benable;
if (message->FindBool("has_selection", &benable) == B_OK) {
_EnableMenuItem(fBar, B_CUT, benable);
_EnableMenuItem(fBar, B_COPY, benable);
_EnableMenuItem(fBar, MSG_CLEAR_SELECT, benable);
}
} break;
case MSG_UNDO_STATE: {
bool benable;
if (message->FindBool("can_undo", &benable) == B_OK)
_EnableMenuItem(fBar, B_UNDO, benable);
} break;
case MSG_CLIPBOARD_CHANGED: {
// The app sends this message after it examines the clipboard in
// response to a B_CLIPBOARD_CHANGED message
bool bdata;
if (message->FindBool("data_available", &bdata) == B_OK)
_EnableMenuItem(fBar, B_PASTE, bdata);
} break;
case B_UNDO:
fImageView->Undo();
break;
case B_CUT:
fImageView->Cut();
break;
case B_COPY:
fImageView->CopySelectionToClipboard();
break;
case B_PASTE:
fImageView->Paste();
break;
case MSG_CLEAR_SELECT:
fImageView->ClearSelection();
break;
case MSG_SELECT_ALL:
fImageView->SelectAll();
break;
case MSG_PAGE_FIRST:
if (_ClosePrompt())
fImageView->FirstPage();
break;
case MSG_PAGE_LAST:
if (_ClosePrompt())
fImageView->LastPage();
break;
case MSG_PAGE_NEXT:
if (_ClosePrompt())
fImageView->NextPage();
break;
case MSG_PAGE_PREV:
if (_ClosePrompt())
fImageView->PrevPage();
break;
case MSG_GOTO_PAGE: {
if (!_ClosePrompt())
break;
int32 newPage;
if (message->FindInt32("page", &newPage) != B_OK)
break;
int32 curPage = fImageView->CurrentPage();
int32 pages = fImageView->PageCount();
if (newPage > 0 && newPage <= pages) {
BMenuItem* pcurItem = fGoToPageMenu->ItemAt(curPage - 1);
BMenuItem* pnewItem = fGoToPageMenu->ItemAt(newPage - 1);
if (pcurItem && pnewItem) {
pcurItem->SetMarked(false);
pnewItem->SetMarked(true);
fImageView->GoToPage(newPage);
}
}
} break;
case MSG_DITHER_IMAGE:
fImageView->SetDither(_ToggleMenuItem(message->what));
break;
case MSG_SHRINK_TO_WINDOW:
_ResizeToWindow(true, message->what);
break;
case MSG_ZOOM_TO_WINDOW:
_ResizeToWindow(false, message->what);
break;
case MSG_FILE_PREV:
if (_ClosePrompt())
fImageView->PrevFile();
break;
case MSG_FILE_NEXT:
if (_ClosePrompt())
fImageView->NextFile();
break;
case MSG_ROTATE_90:
fImageView->Rotate(90);
break;
case MSG_ROTATE_270:
fImageView->Rotate(270);
break;
case MSG_FLIP_LEFT_TO_RIGHT:
fImageView->Flip(true);
break;
case MSG_FLIP_TOP_TO_BOTTOM:
fImageView->Flip(false);
break;
case MSG_INVERT:
fImageView->Invert();
break;
case MSG_SLIDE_SHOW: {
BMenuItem *item = fBar->FindItem(message->what);
if (!item)
break;
if (item->IsMarked()) {
item->SetMarked(false);
fResizeItem->SetEnabled(true);
fImageView->StopSlideShow();
} else if (_ClosePrompt()) {
item->SetMarked(true);
fResizeItem->SetEnabled(false);
fImageView->StartSlideShow();
}
} break;
case MSG_SLIDE_SHOW_DELAY: {
float value;
if (message->FindFloat("value", &value) == B_OK) {
fImageView->SetSlideShowDelay(value);
// in case message is sent from popup menu
_MarkSlideShowDelay(value);
}
} break;
case MSG_FULL_SCREEN:
_ToggleFullScreen();
break;
case MSG_EXIT_FULL_SCREEN:
if (fFullScreen)
_ToggleFullScreen();
break;
case MSG_SHOW_CAPTION: {
fShowCaption = _ToggleMenuItem(message->what);
ShowImageSettings* settings = my_app->Settings();
if (settings->Lock()) {
settings->SetBool("ShowCaption", fShowCaption);
settings->Unlock();
}
if (fFullScreen)
fImageView->SetShowCaption(fShowCaption);
} break;
case MSG_PAGE_SETUP:
_PageSetup();
break;
case MSG_PREPARE_PRINT:
_PrepareForPrint();
break;
case MSG_PRINT:
_Print(message);
break;
case MSG_ZOOM_IN:
fImageView->ZoomIn();
break;
case MSG_ZOOM_OUT:
fImageView->ZoomOut();
break;
case MSG_ORIGINAL_SIZE:
fImageView->SetZoom(1.0);
break;
case MSG_SCALE_BILINEAR:
fImageView->SetScaleBilinear(_ToggleMenuItem(message->what));
break;
case MSG_OPEN_RESIZER_WINDOW: {
if (fImageView->GetBitmap() != NULL) {
BRect rect = fImageView->GetBitmap()->Bounds();
_OpenResizerWindow(rect.IntegerWidth()+1, rect.IntegerHeight()+1);
}
} break;
case MSG_RESIZE: {
int w = message->FindInt32("w");
int h = message->FindInt32("h");
fImageView->ResizeImage(w, h);
} break;
case MSG_RESIZER_WINDOW_QUIT:
delete fResizerWindowMessenger;
fResizerWindowMessenger = NULL;
break;
case MSG_DESKTOP_BACKGROUND: {
BMessage message(B_REFS_RECEIVED);
message.AddRef("refs", fImageView->Image());
// This is used in the Backgrounds code for scaled placement
message.AddInt32("placement", 'scpl');
be_roster->Launch("application/x-vnd.antares-backgrounds", &message);
} break;
default:
BWindow::MessageReceived(message);
break;
}
}
void
ShowImageWindow::MessageReceived(BMessage* message)
{
if (message->WasDropped()) {
uint32 type;
int32 count;
status_t status = message->GetInfo("refs", &type, &count);
if (status == B_OK && type == B_REF_TYPE) {
message->what = B_REFS_RECEIVED;
be_app->PostMessage(message);
}
}
switch (message->what) {
case kMsgImageCacheImageLoaded:
{
fProgressWindow->Stop();
BitmapOwner* bitmapOwner = NULL;
message->FindPointer("bitmapOwner", (void**)&bitmapOwner);
bool first = fImageView->Bitmap() == NULL;
entry_ref ref;
message->FindRef("ref", &ref);
if (!first && ref != fNavigator.CurrentRef()) {
// ignore older images
if (bitmapOwner != NULL)
bitmapOwner->ReleaseReference();
break;
}
int32 page = message->FindInt32("page");
int32 pageCount = message->FindInt32("pageCount");
if (!first && page != fNavigator.CurrentPage()) {
// ignore older pages
if (bitmapOwner != NULL)
bitmapOwner->ReleaseReference();
break;
}
status_t status = fImageView->SetImage(message);
if (status != B_OK) {
if (bitmapOwner != NULL)
bitmapOwner->ReleaseReference();
_LoadError(ref);
// quit if file could not be opened
if (first)
Quit();
break;
}
fImageType = message->FindString("type");
fNavigator.SetTo(ref, page, pageCount);
fImageView->FitToBounds();
if (first) {
fImageView->MakeFocus(true);
// to receive key messages
Show();
}
_UpdateRatingMenu();
// Set width and height attributes of the currently showed file.
// This should only be a temporary solution.
_SaveWidthAndHeight();
break;
}
case kMsgImageCacheProgressUpdate:
{
entry_ref ref;
if (message->FindRef("ref", &ref) == B_OK
&& ref == fNavigator.CurrentRef()) {
message->what = kMsgProgressUpdate;
fProgressWindow->PostMessage(message);
}
break;
}
case MSG_MODIFIED:
// If image has been modified due to a Cut or Paste
fModified = true;
break;
case MSG_OUTPUT_TYPE:
// User clicked Save As then choose an output format
if (!fSavePanel)
// If user doesn't already have a save panel open
_SaveAs(message);
break;
case MSG_SAVE_PANEL:
// User specified where to save the output image
_SaveToFile(message);
break;
case B_CANCEL:
delete fSavePanel;
fSavePanel = NULL;
break;
case MSG_UPDATE_STATUS:
{
int32 pages = fNavigator.PageCount();
int32 currentPage = fNavigator.CurrentPage();
_EnableMenuItem(fBar, MSG_PAGE_FIRST,
fNavigator.HasPreviousPage());
_EnableMenuItem(fBar, MSG_PAGE_LAST, fNavigator.HasNextPage());
_EnableMenuItem(fBar, MSG_PAGE_NEXT, fNavigator.HasNextPage());
_EnableMenuItem(fBar, MSG_PAGE_PREV, fNavigator.HasPreviousPage());
fGoToPageMenu->SetEnabled(pages > 1);
_EnableMenuItem(fBar, MSG_FILE_NEXT, fNavigator.HasNextFile());
_EnableMenuItem(fBar, MSG_FILE_PREV, fNavigator.HasPreviousFile());
if (fGoToPageMenu->CountItems() != pages) {
// Only rebuild the submenu if the number of
// pages is different
while (fGoToPageMenu->CountItems() > 0) {
// Remove all page numbers
delete fGoToPageMenu->RemoveItem((int32)0);
}
for (int32 i = 1; i <= pages; i++) {
// Fill Go To page submenu with an entry for each page
BMessage* goTo = new BMessage(MSG_GOTO_PAGE);
goTo->AddInt32("page", i);
char shortcut = 0;
if (i < 10)
shortcut = '0' + i;
BString strCaption;
strCaption << i;
BMenuItem* item = new BMenuItem(strCaption.String(), goTo,
shortcut, B_SHIFT_KEY);
if (currentPage == i)
item->SetMarked(true);
fGoToPageMenu->AddItem(item);
}
} else {
// Make sure the correct page is marked
BMenuItem* currentItem = fGoToPageMenu->ItemAt(currentPage - 1);
if (currentItem != NULL && !currentItem->IsMarked())
currentItem->SetMarked(true);
}
_UpdateStatusText(message);
BPath path(fImageView->Image());
SetTitle(path.Path());
break;
}
case MSG_UPDATE_STATUS_TEXT:
{
_UpdateStatusText(message);
break;
}
case MSG_SELECTION:
{
// The view sends this message when a selection is
// made or the selection is cleared so that the window
// can update the state of the appropriate menu items
bool enable;
if (message->FindBool("has_selection", &enable) == B_OK) {
_EnableMenuItem(fBar, B_COPY, enable);
_EnableMenuItem(fBar, MSG_CLEAR_SELECT, enable);
}
break;
}
case B_COPY:
fImageView->CopySelectionToClipboard();
break;
case MSG_SELECTION_MODE:
{
bool selectionMode = _ToggleMenuItem(MSG_SELECTION_MODE);
fImageView->SetSelectionMode(selectionMode);
if (!selectionMode)
fImageView->ClearSelection();
break;
}
case MSG_CLEAR_SELECT:
fImageView->ClearSelection();
break;
case MSG_SELECT_ALL:
fImageView->SelectAll();
break;
case MSG_PAGE_FIRST:
if (_ClosePrompt() && fNavigator.FirstPage())
_LoadImage();
break;
case MSG_PAGE_LAST:
if (_ClosePrompt() && fNavigator.LastPage())
_LoadImage();
break;
case MSG_PAGE_NEXT:
if (_ClosePrompt() && fNavigator.NextPage())
_LoadImage();
break;
case MSG_PAGE_PREV:
if (_ClosePrompt() && fNavigator.PreviousPage())
_LoadImage();
break;
case MSG_GOTO_PAGE:
{
if (!_ClosePrompt())
break;
int32 newPage;
if (message->FindInt32("page", &newPage) != B_OK)
break;
int32 currentPage = fNavigator.CurrentPage();
int32 pages = fNavigator.PageCount();
// TODO: use radio mode instead!
if (newPage > 0 && newPage <= pages) {
BMenuItem* currentItem = fGoToPageMenu->ItemAt(currentPage - 1);
BMenuItem* newItem = fGoToPageMenu->ItemAt(newPage - 1);
if (currentItem != NULL && newItem != NULL) {
currentItem->SetMarked(false);
newItem->SetMarked(true);
if (fNavigator.GoToPage(newPage))
_LoadImage();
}
}
break;
}
case kMsgFitToWindow:
fImageView->FitToBounds();
break;
case kMsgStretchToWindow:
fImageView->SetStretchToBounds(
_ToggleMenuItem(kMsgStretchToWindow));
break;
case MSG_FILE_PREV:
if (_ClosePrompt() && fNavigator.PreviousFile())
_LoadImage(false);
break;
case MSG_FILE_NEXT:
case kMsgNextSlide:
if (_ClosePrompt() && fNavigator.NextFile())
_LoadImage();
break;
case kMsgDeleteCurrentFile:
{
if (fNavigator.MoveFileToTrash())
_LoadImage();
else
PostMessage(B_QUIT_REQUESTED);
break;
}
case MSG_ROTATE_90:
fImageView->Rotate(90);
break;
case MSG_ROTATE_270:
fImageView->Rotate(270);
break;
case MSG_FLIP_LEFT_TO_RIGHT:
fImageView->Flip(true);
break;
case MSG_FLIP_TOP_TO_BOTTOM:
fImageView->Flip(false);
break;
case MSG_SLIDE_SHOW:
{
bool fullScreen = false;
message->FindBool("full screen", &fullScreen);
BMenuItem* item = fBar->FindItem(message->what);
if (item == NULL)
break;
if (item->IsMarked()) {
item->SetMarked(false);
_StopSlideShow();
fToolBar->SetActionPressed(MSG_SLIDE_SHOW, false);
} else if (_ClosePrompt()) {
item->SetMarked(true);
if (!fFullScreen && fullScreen)
_ToggleFullScreen();
_StartSlideShow();
fToolBar->SetActionPressed(MSG_SLIDE_SHOW, true);
}
break;
}
case kMsgStopSlideShow:
{
BMenuItem* item = fBar->FindItem(MSG_SLIDE_SHOW);
if (item != NULL)
item->SetMarked(false);
_StopSlideShow();
fToolBar->SetActionPressed(MSG_SLIDE_SHOW, false);
break;
}
case MSG_SLIDE_SHOW_DELAY:
{
bigtime_t delay;
if (message->FindInt64("delay", &delay) == B_OK) {
_SetSlideShowDelay(delay);
// in case message is sent from popup menu
_MarkSlideShowDelay(delay);
}
break;
}
case MSG_FULL_SCREEN:
_ToggleFullScreen();
break;
case MSG_EXIT_FULL_SCREEN:
if (fFullScreen)
_ToggleFullScreen();
break;
case MSG_SHOW_CAPTION:
{
fShowCaption = _ToggleMenuItem(message->what);
ShowImageSettings* settings = my_app->Settings();
if (settings->Lock()) {
settings->SetBool("ShowCaption", fShowCaption);
settings->Unlock();
}
if (fFullScreen)
fImageView->SetShowCaption(fShowCaption);
} break;
case MSG_PAGE_SETUP:
_PageSetup();
break;
case MSG_PREPARE_PRINT:
_PrepareForPrint();
break;
case MSG_PRINT:
_Print(message);
break;
case MSG_ZOOM_IN:
fImageView->ZoomIn();
break;
case MSG_ZOOM_OUT:
fImageView->ZoomOut();
break;
case MSG_UPDATE_STATUS_ZOOM:
fStatusView->SetZoom(fImageView->Zoom());
break;
case kMsgOriginalSize:
if (message->FindInt32("behavior") == BButton::B_TOGGLE_BEHAVIOR) {
bool force = (message->FindInt32("be:value") == B_CONTROL_ON);
fImageView->ForceOriginalSize(force);
if (!force)
break;
}
fImageView->SetZoom(1.0);
break;
case MSG_SCALE_BILINEAR:
fImageView->SetScaleBilinear(_ToggleMenuItem(message->what));
break;
case MSG_DESKTOP_BACKGROUND:
{
BMessage backgroundsMessage(B_REFS_RECEIVED);
backgroundsMessage.AddRef("refs", fImageView->Image());
// This is used in the Backgrounds code for scaled placement
backgroundsMessage.AddInt32("placement", 'scpl');
be_roster->Launch("application/x-vnd.haiku-backgrounds",
&backgroundsMessage);
break;
}
case MSG_SET_RATING:
{
int32 rating;
if (message->FindInt32("rating", &rating) != B_OK)
break;
BFile file(&fNavigator.CurrentRef(), B_WRITE_ONLY);
if (file.InitCheck() != B_OK)
break;
file.WriteAttr("Media:Rating", B_INT32_TYPE, 0, &rating,
sizeof(rating));
_UpdateRatingMenu();
break;
}
case kMsgToggleToolBar:
{
fShowToolBar = _ToggleMenuItem(message->what);
_SetToolBarVisible(fShowToolBar, true);
ShowImageSettings* settings = my_app->Settings();
if (settings->Lock()) {
settings->SetBool("ShowToolBar", fShowToolBar);
settings->Unlock();
}
break;
}
case kShowToolBarIfEnabled:
{
bool show;
if (message->FindBool("show", &show) != B_OK)
break;
_SetToolBarVisible(fShowToolBar && show, true);
break;
}
case kMsgSlideToolBar:
{
float offset;
if (message->FindFloat("offset", &offset) == B_OK) {
fToolBar->MoveBy(0, offset);
fScrollView->ResizeBy(0, -offset);
fScrollView->MoveBy(0, offset);
UpdateIfNeeded();
snooze(15000);
}
break;
}
case kMsgFinishSlidingToolBar:
{
float offset;
bool show;
if (message->FindFloat("offset", &offset) == B_OK
&& message->FindBool("show", &show) == B_OK) {
// Compensate rounding errors with the final placement
fToolBar->MoveTo(fToolBar->Frame().left, offset);
if (!show)
fToolBar->Hide();
BRect frame = fToolBar->Parent()->Bounds();
frame.top = fToolBar->Frame().bottom + 1;
fScrollView->MoveTo(fScrollView->Frame().left, frame.top);
fScrollView->ResizeTo(fScrollView->Bounds().Width(),
frame.Height() + 1);
}
break;
}
default:
BWindow::MessageReceived(message);
break;
}
}