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author | Tom Sepez <tsepez@chromium.org> | 2017-04-25 10:29:58 -0700 |
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committer | Chromium commit bot <commit-bot@chromium.org> | 2017-04-25 17:44:29 +0000 |
commit | 6302288dec6111120749754ba8ec2d249b63404b (patch) | |
tree | ea760932b163690fe5274716735b5c5d538615b2 /core/fxcrt/fx_basic_coords.cpp | |
parent | d1e01de5f0776700cd52f06569f4fc0bd34e74d6 (diff) | |
download | pdfium-6302288dec6111120749754ba8ec2d249b63404b.tar.xz |
Rename core/fxcrt/fx_basic_coords.cpp to fx_coordinates.cpp
Its contents are delcared in fx_coordinates.h
Remove unused GetIntersection().
Move FXSYS_round to fx_system.cpp.
Change-Id: I70749581d1321dd919e35fa2daab9591098f68e9
Reviewed-on: https://pdfium-review.googlesource.com/4479
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Diffstat (limited to 'core/fxcrt/fx_basic_coords.cpp')
-rw-r--r-- | core/fxcrt/fx_basic_coords.cpp | 408 |
1 files changed, 0 insertions, 408 deletions
diff --git a/core/fxcrt/fx_basic_coords.cpp b/core/fxcrt/fx_basic_coords.cpp deleted file mode 100644 index 9c83ddfbd0..0000000000 --- a/core/fxcrt/fx_basic_coords.cpp +++ /dev/null @@ -1,408 +0,0 @@ -// Copyright 2014 PDFium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com - -#include <limits.h> - -#include <algorithm> - -#include "core/fxcrt/fx_coordinates.h" -#include "core/fxcrt/fx_extension.h" - -namespace { - -void MatchFloatRange(float f1, float f2, int* i1, int* i2) { - int length = static_cast<int>(ceil(f2 - f1)); - int i1_1 = static_cast<int>(floor(f1)); - int i1_2 = static_cast<int>(ceil(f1)); - float error1 = f1 - i1_1 + (float)fabs(f2 - i1_1 - length); - float error2 = i1_2 - f1 + (float)fabs(f2 - i1_2 - length); - - *i1 = (error1 > error2) ? i1_2 : i1_1; - *i2 = *i1 + length; -} - -} // namespace - -void FX_RECT::Normalize() { - if (left > right) { - int temp = left; - left = right; - right = temp; - } - if (top > bottom) { - int temp = top; - top = bottom; - bottom = temp; - } -} -void FX_RECT::Intersect(const FX_RECT& src) { - FX_RECT src_n = src; - src_n.Normalize(); - Normalize(); - left = left > src_n.left ? left : src_n.left; - top = top > src_n.top ? top : src_n.top; - right = right < src_n.right ? right : src_n.right; - bottom = bottom < src_n.bottom ? bottom : src_n.bottom; - if (left > right || top > bottom) { - left = top = right = bottom = 0; - } -} - -bool GetIntersection(float low1, - float high1, - float low2, - float high2, - float& interlow, - float& interhigh) { - if (low1 >= high2 || low2 >= high1) { - return false; - } - interlow = low1 > low2 ? low1 : low2; - interhigh = high1 > high2 ? high2 : high1; - return true; -} -extern "C" int FXSYS_round(float d) { - if (d < (float)INT_MIN) { - return INT_MIN; - } - if (d > (float)INT_MAX) { - return INT_MAX; - } - - return (int)round(d); -} -CFX_FloatRect::CFX_FloatRect(const FX_RECT& rect) { - left = (float)(rect.left); - right = (float)(rect.right); - bottom = (float)(rect.top); - top = (float)(rect.bottom); -} -void CFX_FloatRect::Normalize() { - float temp; - if (left > right) { - temp = left; - left = right; - right = temp; - } - if (bottom > top) { - temp = top; - top = bottom; - bottom = temp; - } -} -void CFX_FloatRect::Intersect(const CFX_FloatRect& other_rect) { - Normalize(); - CFX_FloatRect other = other_rect; - other.Normalize(); - left = left > other.left ? left : other.left; - right = right < other.right ? right : other.right; - bottom = bottom > other.bottom ? bottom : other.bottom; - top = top < other.top ? top : other.top; - if (left > right || bottom > top) { - left = right = bottom = top = 0; - } -} -void CFX_FloatRect::Union(const CFX_FloatRect& other_rect) { - Normalize(); - CFX_FloatRect other = other_rect; - other.Normalize(); - left = left < other.left ? left : other.left; - right = right > other.right ? right : other.right; - bottom = bottom < other.bottom ? bottom : other.bottom; - top = top > other.top ? top : other.top; -} - -int CFX_FloatRect::Substract4(CFX_FloatRect& s, CFX_FloatRect* pRects) { - Normalize(); - s.Normalize(); - int nRects = 0; - CFX_FloatRect rects[4]; - if (left < s.left) { - rects[nRects].left = left; - rects[nRects].right = s.left; - rects[nRects].bottom = bottom; - rects[nRects].top = top; - nRects++; - } - if (s.left < right && s.top < top) { - rects[nRects].left = s.left; - rects[nRects].right = right; - rects[nRects].bottom = s.top; - rects[nRects].top = top; - nRects++; - } - if (s.top > bottom && s.right < right) { - rects[nRects].left = s.right; - rects[nRects].right = right; - rects[nRects].bottom = bottom; - rects[nRects].top = s.top; - nRects++; - } - if (s.bottom > bottom) { - rects[nRects].left = s.left; - rects[nRects].right = s.right; - rects[nRects].bottom = bottom; - rects[nRects].top = s.bottom; - nRects++; - } - if (nRects == 0) { - return 0; - } - for (int i = 0; i < nRects; i++) { - pRects[i] = rects[i]; - pRects[i].Intersect(*this); - } - return nRects; -} - -FX_RECT CFX_FloatRect::GetOuterRect() const { - CFX_FloatRect rect1 = *this; - FX_RECT rect; - rect.left = (int)floor(rect1.left); - rect.right = (int)ceil(rect1.right); - rect.top = (int)floor(rect1.bottom); - rect.bottom = (int)ceil(rect1.top); - rect.Normalize(); - return rect; -} - -FX_RECT CFX_FloatRect::GetInnerRect() const { - CFX_FloatRect rect1 = *this; - FX_RECT rect; - rect.left = (int)ceil(rect1.left); - rect.right = (int)floor(rect1.right); - rect.top = (int)ceil(rect1.bottom); - rect.bottom = (int)floor(rect1.top); - rect.Normalize(); - return rect; -} - -FX_RECT CFX_FloatRect::GetClosestRect() const { - CFX_FloatRect rect1 = *this; - FX_RECT rect; - MatchFloatRange(rect1.left, rect1.right, &rect.left, &rect.right); - MatchFloatRange(rect1.bottom, rect1.top, &rect.top, &rect.bottom); - rect.Normalize(); - return rect; -} - -bool CFX_FloatRect::Contains(const CFX_PointF& point) const { - CFX_FloatRect n1(*this); - n1.Normalize(); - return point.x <= n1.right && point.x >= n1.left && point.y <= n1.top && - point.y >= n1.bottom; -} - -bool CFX_FloatRect::Contains(const CFX_FloatRect& other_rect) const { - CFX_FloatRect n1(*this); - CFX_FloatRect n2(other_rect); - n1.Normalize(); - n2.Normalize(); - return n2.left >= n1.left && n2.right <= n1.right && n2.bottom >= n1.bottom && - n2.top <= n1.top; -} - -void CFX_FloatRect::UpdateRect(float x, float y) { - left = std::min(left, x); - right = std::max(right, x); - bottom = std::min(bottom, y); - top = std::max(top, y); -} - -CFX_FloatRect CFX_FloatRect::GetBBox(const CFX_PointF* pPoints, int nPoints) { - if (nPoints == 0) - return CFX_FloatRect(); - - float min_x = pPoints->x; - float max_x = pPoints->x; - float min_y = pPoints->y; - float max_y = pPoints->y; - for (int i = 1; i < nPoints; i++) { - min_x = std::min(min_x, pPoints[i].x); - max_x = std::max(max_x, pPoints[i].x); - min_y = std::min(min_y, pPoints[i].y); - max_y = std::max(max_y, pPoints[i].y); - } - return CFX_FloatRect(min_x, min_y, max_x, max_y); -} - -void CFX_Matrix::SetReverse(const CFX_Matrix& m) { - float i = m.a * m.d - m.b * m.c; - if (fabs(i) == 0) - return; - - float j = -i; - a = m.d / i; - b = m.b / j; - c = m.c / j; - d = m.a / i; - e = (m.c * m.f - m.d * m.e) / i; - f = (m.a * m.f - m.b * m.e) / j; -} - -void CFX_Matrix::Concat(const CFX_Matrix& m, bool bPrepended) { - ConcatInternal(m, bPrepended); -} - -void CFX_Matrix::ConcatInverse(const CFX_Matrix& src, bool bPrepended) { - CFX_Matrix m; - m.SetReverse(src); - Concat(m, bPrepended); -} - -bool CFX_Matrix::Is90Rotated() const { - return fabs(a * 1000) < fabs(b) && fabs(d * 1000) < fabs(c); -} - -bool CFX_Matrix::IsScaled() const { - return fabs(b * 1000) < fabs(a) && fabs(c * 1000) < fabs(d); -} - -void CFX_Matrix::Translate(float x, float y, bool bPrepended) { - if (bPrepended) { - e += x * a + y * c; - f += y * d + x * b; - return; - } - e += x; - f += y; -} - -void CFX_Matrix::Scale(float sx, float sy, bool bPrepended) { - a *= sx; - d *= sy; - if (bPrepended) { - b *= sx; - c *= sy; - return; - } - - b *= sy; - c *= sx; - e *= sx; - f *= sy; -} - -void CFX_Matrix::Rotate(float fRadian, bool bPrepended) { - float cosValue = cos(fRadian); - float sinValue = sin(fRadian); - ConcatInternal(CFX_Matrix(cosValue, sinValue, -sinValue, cosValue, 0, 0), - bPrepended); -} - -void CFX_Matrix::RotateAt(float fRadian, float dx, float dy, bool bPrepended) { - Translate(dx, dy, bPrepended); - Rotate(fRadian, bPrepended); - Translate(-dx, -dy, bPrepended); -} - -void CFX_Matrix::Shear(float fAlphaRadian, float fBetaRadian, bool bPrepended) { - ConcatInternal(CFX_Matrix(1, tan(fAlphaRadian), tan(fBetaRadian), 1, 0, 0), - bPrepended); -} - -void CFX_Matrix::MatchRect(const CFX_FloatRect& dest, - const CFX_FloatRect& src) { - float fDiff = src.left - src.right; - a = fabs(fDiff) < 0.001f ? 1 : (dest.left - dest.right) / fDiff; - - fDiff = src.bottom - src.top; - d = fabs(fDiff) < 0.001f ? 1 : (dest.bottom - dest.top) / fDiff; - e = dest.left - src.left * a; - f = dest.bottom - src.bottom * d; - b = 0; - c = 0; -} - -float CFX_Matrix::GetXUnit() const { - if (b == 0) - return (a > 0 ? a : -a); - if (a == 0) - return (b > 0 ? b : -b); - return sqrt(a * a + b * b); -} - -float CFX_Matrix::GetYUnit() const { - if (c == 0) - return (d > 0 ? d : -d); - if (d == 0) - return (c > 0 ? c : -c); - return sqrt(c * c + d * d); -} - -CFX_FloatRect CFX_Matrix::GetUnitRect() const { - CFX_FloatRect rect(0, 0, 1, 1); - TransformRect(rect); - return rect; -} - -float CFX_Matrix::TransformXDistance(float dx) const { - float fx = a * dx; - float fy = b * dx; - return sqrt(fx * fx + fy * fy); -} - -float CFX_Matrix::TransformDistance(float dx, float dy) const { - float fx = a * dx + c * dy; - float fy = b * dx + d * dy; - return sqrt(fx * fx + fy * fy); -} - -float CFX_Matrix::TransformDistance(float distance) const { - return distance * (GetXUnit() + GetYUnit()) / 2; -} - -CFX_PointF CFX_Matrix::Transform(const CFX_PointF& point) const { - return CFX_PointF(a * point.x + c * point.y + e, - b * point.x + d * point.y + f); -} - -void CFX_Matrix::TransformRect(CFX_RectF& rect) const { - float right = rect.right(), bottom = rect.bottom(); - TransformRect(rect.left, right, bottom, rect.top); - rect.width = right - rect.left; - rect.height = bottom - rect.top; -} - -void CFX_Matrix::TransformRect(float& left, - float& right, - float& top, - float& bottom) const { - CFX_PointF points[] = { - {left, top}, {left, bottom}, {right, top}, {right, bottom}}; - for (int i = 0; i < 4; i++) - points[i] = Transform(points[i]); - - right = points[0].x; - left = points[0].x; - top = points[0].y; - bottom = points[0].y; - for (int i = 1; i < 4; i++) { - right = std::max(right, points[i].x); - left = std::min(left, points[i].x); - top = std::max(top, points[i].y); - bottom = std::min(bottom, points[i].y); - } -} - -void CFX_Matrix::ConcatInternal(const CFX_Matrix& other, bool prepend) { - CFX_Matrix left; - CFX_Matrix right; - if (prepend) { - left = other; - right = *this; - } else { - left = *this; - right = other; - } - - a = left.a * right.a + left.b * right.c; - b = left.a * right.b + left.b * right.d; - c = left.c * right.a + left.d * right.c; - d = left.c * right.b + left.d * right.d; - e = left.e * right.a + left.f * right.c + right.e; - f = left.e * right.b + left.f * right.d + right.f; -} |