diff options
Diffstat (limited to 'intern/ghost/GHOST_Rect.h')
| -rw-r--r-- | intern/ghost/GHOST_Rect.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/intern/ghost/GHOST_Rect.h b/intern/ghost/GHOST_Rect.h index 6271ecad408..98169ad2aa4 100644 --- a/intern/ghost/GHOST_Rect.h +++ b/intern/ghost/GHOST_Rect.h @@ -127,6 +127,13 @@ public: virtual inline void unionPoint(GHOST_TInt32 x, GHOST_TInt32 y); /** + * Grows the rectangle to included a point. + * @param x The x-coordinate of the point. + * @param y The y-coordinate of the point. + */ + virtual inline void wrapPoint(GHOST_TInt32 &x, GHOST_TInt32 &y, GHOST_TInt32 ofs); + + /** * Returns whether the point is inside this rectangle. * Point on the boundary is considered inside. * @param x x-coordinate of point to test. @@ -222,6 +229,21 @@ inline void GHOST_Rect::unionPoint(GHOST_TInt32 x, GHOST_TInt32 y) if (y > m_b) m_b = y; } +inline void GHOST_Rect::wrapPoint(GHOST_TInt32 &x, GHOST_TInt32 &y, GHOST_TInt32 ofs) +{ + GHOST_TInt32 w= getWidth(); + GHOST_TInt32 h= getHeight(); + + /* highly unlikely but avoid eternal loop */ + if(w-ofs <= 0 || h-ofs <= 0) + return; + + while(x-ofs < m_l) x+= w; + while(y-ofs < m_t) y+= h; + while(x+ofs > m_r) x-= w; + while(y+ofs > m_b) y-= h; +} + inline bool GHOST_Rect::isInside(GHOST_TInt32 x, GHOST_TInt32 y) const { return (x >= m_l) && (x <= m_r) && (y >= m_t) && (y <= m_b); |