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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- *
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
-
- //
- // Implementation for a pair of classes that provided a tooltip that takes its text dynamically
- // based on the content of a pane and the mouse location. The CDynamicTooltipPane asks its
- // parent view what string it should display depending on the current mouse location.
- // The CDynamicTootipMixin class is mixed into the parent view to give the the correct
- // interface.
- //
-
- #include "CDynamicTooltips.h"
-
-
- //
- // CalcFrameWithRespectTo
- //
- // Figures out how big the tip needs to be and where it should be located in the port for
- // the tip text. We are guaranteed that |mTip| (the string holding the text) has already
- // been correctly set.
- //
- void
- CDynamicTooltipPane :: CalcFrameWithRespectTo( LWindow* inOwningWindow, LPane* inOwningPane,
- const EventRecord& inMacEvent,
- Rect& outTipFrame)
- {
- const short kXPadding = 5;
- const short kYPadding = 3;
-
- StTextState theTextSaver;
- UTextTraits::SetPortTextTraits(mTipTraitsID);
-
- FontInfo theFontInfo;
- ::GetFontInfo(&theFontInfo);
- Int16 theTextHeight = theFontInfo.ascent + theFontInfo.descent + theFontInfo.leading + (2 * 2);
- Int16 theTextWidth = ::StringWidth(mTip) + (2 * ::CharWidth(char_Space));
-
- Point theLocalPoint = inMacEvent.where;
- GlobalToPortPoint(theLocalPoint);
-
- Rect theWindowFrame;
- inOwningPane->CalcPortFrameRect(theWindowFrame);
-
- outTipFrame.left = theLocalPoint.h + kXPadding;
- outTipFrame.top = theLocalPoint.v + kYPadding;
- outTipFrame.right = outTipFrame.left + theTextWidth + kXPadding;
- outTipFrame.bottom = outTipFrame.top + theTextHeight + kYPadding;
-
- ForceInPortFrame(inOwningWindow, outTipFrame);
-
- } // CDynamicTooltipPane :: CalcFrameWithRespectTo
-
-
- //
- // CalcTipText
- //
- // Asks the parent pane (which has the interface provided by the CDynamicTooltipMixin class)
- // for the tooltip at the current mouse location
- //
- void
- CDynamicTooltipPane :: CalcTipText( LWindow* /* inOwningWindow */, LPane* inOwningPane,
- const EventRecord& inMacEvent, StringPtr outTipText)
- {
- CDynamicTooltipMixin* parent = dynamic_cast<CDynamicTooltipMixin*>(inOwningPane);
- Assert_(parent != NULL);
- parent->FindTooltipForMouseLocation ( inMacEvent, outTipText );
-
- } // CDynamicTooltipPane :: CalcTipText
-