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// ========================================================================
// SNAPINFO
// ------------------------------------------------------------------------
/// holds the data for calculating a modified window rect. Since it
/// only works on coordinate rects, it can be used without any actual Windows.
/// To use it:
/// - call Init, specifying the initial position
/// - call SnapHLine / SnapVLine for each (virtual) line to snap to
/// - call EndSnap to retrieve the final position
struct SNAPINFO
{
enum { MAXDELTA = (1<<30) };
DWORD snapWidth; ///< distance over which snapping works
RECT rold; ///< original rect
RECT rnew; ///< post-move rect (if specified)
RECT rdelta;
RECT rout; ///< accumulates the final rect
/// Initialize, specifying a pre-move and post-move rect
void Init(RECT const & oldRect, RECT const & newRect, DWORD snapwidth);
/// Initialize, specifying only one rectangle
void Init(RECT const & r, DWORD snapWidth, bool moveOnly = false);
void SnapHLine(long y); ///< snap to a horizontal line
void SnapVLine(long x); ///< snap to a vertical line
RECT & EndSnap(); ///< ends snapping sequence and returns final coords
};
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Peter is tired of being called "Mr. Chen", even so certain individuals insist on it. No, he's not chinese.
Peter has seen lots of boxes you youngsters wouldn't even accept as calculators. He is proud of having visited the insides of a 16 Bit Machine.
In his spare time he ponders new ways of turning groceries into biohazards, or tries to coax South American officials to add some stamps to his passport.
Beyond these trivialities Peter works for
Klippel[
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