c434782e3a
Use a shorter/simpler license convention, stops the header taking so much space. Follow the SPDX license specification: https://spdx.org/licenses - C/C++/objc/objc++ - Python - Shell Scripts - CMake, GNUmakefile While most of the source tree has been included - `./extern/` was left out. - `./intern/cycles` & `./intern/atomic` are also excluded because they use different header conventions. doc/license/SPDX-license-identifiers.txt has been added to list SPDX all used identifiers. See P2788 for the script that automated these edits. Reviewed By: brecht, mont29, sergey Ref D14069
112 lines
2.2 KiB
C++
112 lines
2.2 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2001-2002 NaN Holding BV. All rights reserved. */
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/** \file
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* \ingroup GHOST
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*/
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#include "GHOST_Rect.h"
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void GHOST_Rect::inset(int32_t i)
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{
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if (i > 0) {
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/* Grow the rectangle. */
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m_l -= i;
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m_r += i;
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m_t -= i;
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m_b += i;
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}
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else if (i < 0) {
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/* Shrink the rectangle, check for insets larger than half the size. */
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int32_t i2 = i * 2;
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if (getWidth() > i2) {
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m_l += i;
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m_r -= i;
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}
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else {
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m_l = m_l + ((m_r - m_l) / 2);
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m_r = m_l;
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}
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if (getHeight() > i2) {
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m_t += i;
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m_b -= i;
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}
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else {
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m_t = m_t + ((m_b - m_t) / 2);
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m_b = m_t;
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}
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}
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}
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GHOST_TVisibility GHOST_Rect::getVisibility(GHOST_Rect &r) const
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{
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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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GHOST_TVisibility v;
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if (lt && rt && lb && rb) {
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/* All points inside, rectangle is inside this. */
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v = GHOST_kFullyVisible;
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}
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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 = GHOST_kPartiallyVisible;
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}
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else {
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v = GHOST_kNotVisible;
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}
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}
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else {
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/* Some of the points inside, rectangle is partially inside. */
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v = GHOST_kPartiallyVisible;
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}
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return v;
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}
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void GHOST_Rect::setCenter(int32_t cx, int32_t cy)
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{
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int32_t offset = cx - (m_l + (m_r - m_l) / 2);
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m_l += offset;
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m_r += offset;
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offset = cy - (m_t + (m_b - m_t) / 2);
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m_t += offset;
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m_b += offset;
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}
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void GHOST_Rect::setCenter(int32_t cx, int32_t cy, int32_t w, int32_t h)
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{
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long w_2, h_2;
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w_2 = w >> 1;
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h_2 = h >> 1;
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m_l = cx - w_2;
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m_t = cy - h_2;
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m_r = m_l + w;
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m_b = m_t + h;
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}
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bool GHOST_Rect::clip(GHOST_Rect &r) const
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{
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bool clipped = false;
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if (r.m_l < m_l) {
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r.m_l = m_l;
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clipped = true;
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}
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if (r.m_t < m_t) {
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r.m_t = m_t;
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clipped = true;
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}
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if (r.m_r > m_r) {
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r.m_r = m_r;
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clipped = true;
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}
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if (r.m_b > m_b) {
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r.m_b = m_b;
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clipped = true;
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}
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return clipped;
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}
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