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* $Id: IMG_Rect.cpp,v 1.4 2005/09/09 22:31:23 bjornmose Exp $
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* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version. The Blender
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* Foundation also sells licenses for use in proprietary software under
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* the Blender License. See http://www.blender.org/BL/ for information
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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* The Original Code is: all of this file.
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* Contributor(s): none yet.
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* ***** END GPL/BL DUAL LICENSE BLOCK *****
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TVisibility IMG_Rect::getVisibility(IMG_Rect& r) const
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bool lt = isInside(r.m_l, r.m_t);
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bool rt = isInside(r.m_r, r.m_t);
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bool lb = isInside(r.m_l, r.m_b);
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bool rb = isInside(r.m_r, r.m_b);
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if (lt && rt && lb && rb) {
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// All points inside, rectangle is inside this
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else if (!(lt || rt || lb || rb)) {
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// None of the points inside
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// Check to see whether the rectangle is larger than this one
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if ((r.m_l < m_l) && (r.m_t < m_t) && (r.m_r > m_r) && (r.m_b > m_b)) {
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v = kPartiallyVisible;
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// Some of the points inside, rectangle is partially inside
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v = kPartiallyVisible;
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TVisibility IMG_Rect::getVisibility(IMG_Line& l) const
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bool s = isInside(l.m_xs, l.m_ys);
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bool e = isInside(l.m_xe, l.m_ye);
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v = kPartiallyVisible;
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void IMG_Rect::setCenter(TInt32 cx, TInt32 cy)
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TInt32 offset = cx - (m_l + (m_r - m_l)/2);
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offset = cy - (m_t + (m_b - m_t)/2);
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void IMG_Rect::setCenter(TInt32 cx, TInt32 cy, TInt32 w, TInt32 h)
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bool IMG_Rect::clip(IMG_Rect& r) const
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bool clipped = false;
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bool IMG_Rect::clip(IMG_Line& l) const
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bool clipped = false;