Пример #1
0
// constructor
NavigationInfoPanel::NavigationInfoPanel(BWindow* parent,
		const BMessage& message, const BMessenger& target)
	: BWindow(BRect(0, 0, 200, 30), "Navigation Info", B_FLOATING_WINDOW_LOOK,
		B_FLOATING_SUBSET_WINDOW_FEEL,
		B_ASYNCHRONOUS_CONTROLS | B_NOT_ZOOMABLE | B_NOT_V_RESIZABLE)
	, fMessage(message)
	, fTarget(target)
{
	// create the interface and resize to fit

	BRect frame = Bounds();
	frame.InsetBy(5, 5);
	frame.bottom = frame.top + 15;

	// label string view
	fLabelView = new BStringView(frame, "label", kLabel,
		B_FOLLOW_LEFT_RIGHT | B_FOLLOW_TOP);
	fLabelView->ResizeToPreferred();
	frame = fLabelView->Frame();

	// target clip text control
	frame.OffsetBy(0, frame.Height() + 5);
	fTargetClipTC = new BTextControl(frame, "clip id",
		"Target Playlist ID", "", new BMessage(MSG_INVOKE),
		B_FOLLOW_TOP | B_FOLLOW_LEFT_RIGHT);
	fTargetClipTC->ResizeToPreferred();
	frame = fTargetClipTC->Frame();

	// help string view
	frame.OffsetBy(0, frame.Height() + 5);
	BStringView* helpView = new BStringView(frame, "help",
		"Drag and drop a playlist clip here.",
		B_FOLLOW_LEFT_RIGHT | B_FOLLOW_TOP);
	BFont font;
	helpView->GetFont(&font);
	font.SetFace(B_ITALIC_FACE);
	font.SetSize(font.Size() * 0.9);
	helpView->SetFont(&font);
	helpView->SetAlignment(B_ALIGN_CENTER);
	helpView->ResizeToPreferred();

	// parent view
	frame = fLabelView->Frame() | fTargetClipTC->Frame() | helpView->Frame();
	frame.InsetBy(-5, -5);
	fInfoView = new InfoView(frame, this);
	fInfoView->AddChild(fLabelView);
	fInfoView->AddChild(fTargetClipTC);
	fInfoView->AddChild(helpView);

	// resize to fit and adjust size limits
	ResizeTo(fInfoView->Frame().Width(), fInfoView->Frame().Height());
	AddChild(fInfoView);
	float minWidth, maxWidth, minHeight, maxHeight;
	GetSizeLimits(&minWidth, &maxWidth, &minHeight, &maxHeight);
	minWidth = Frame().Width();
	minHeight = maxHeight = Frame().Height();
	SetSizeLimits(minWidth, maxWidth, minHeight, maxHeight);

	// modify the high color after the help view is attached to a window
	helpView->SetHighColor(tint_color(helpView->LowColor(),
		B_DISABLED_LABEL_TINT));
	helpView->SetFlags(helpView->Flags() | B_FULL_UPDATE_ON_RESIZE);
		// help the buggy BeOS BStringView (when text alignment != left...)

	fInfoView->SetEventMask(B_POINTER_EVENTS);

	// resize controls to the same (maximum) width
	float maxControlWidth = fLabelView->Frame().Width();
	maxControlWidth = max_c(maxControlWidth, fTargetClipTC->Frame().Width());
	maxControlWidth = max_c(maxControlWidth, helpView->Frame().Width());
	fLabelView->ResizeTo(maxControlWidth, fLabelView->Frame().Height());
	fTargetClipTC->ResizeTo(maxControlWidth, fTargetClipTC->Frame().Height());
	helpView->ResizeTo(maxControlWidth, helpView->Frame().Height());

	// center above parent window
	BAutolock _(parent);
	frame = Frame();
	BRect parentFrame = parent->Frame();
	MoveTo((parentFrame.left + parentFrame.right - frame.Width()) / 2,
		(parentFrame.top + parentFrame.bottom - frame.Height()) / 2);

	AddToSubset(parent);
}