summaryrefslogtreecommitdiff
path: root/core/fxge/ge/cfx_pathdata.cpp
diff options
context:
space:
mode:
authornpm <npm@chromium.org>2016-08-08 08:18:29 -0700
committerCommit bot <commit-bot@chromium.org>2016-08-08 08:18:29 -0700
commit660de3c494b68a574cb4cdf20359f51ddc260d3c (patch)
tree04eebfb5e0effe3cdce70e8bf60b39dcc018a817 /core/fxge/ge/cfx_pathdata.cpp
parentf41d9dc1ead47a1218e1cd37bd74ec850c8baaa3 (diff)
downloadpdfium-660de3c494b68a574cb4cdf20359f51ddc260d3c.tar.xz
Move CFX_ClipRgn and CFX_PathData into their own files.
This is the second CL in an attempt to split up the classes in fxge/include/fx_ge.h into their own files. CFX_ClipRgn is moved to core/fxge/ge because it is only used in core/fxge. The header for CFX_PathData is left in core/fxge/include since it is used elsewhere. Review-Url: https://codereview.chromium.org/2216853004
Diffstat (limited to 'core/fxge/ge/cfx_pathdata.cpp')
-rw-r--r--core/fxge/ge/cfx_pathdata.cpp533
1 files changed, 533 insertions, 0 deletions
diff --git a/core/fxge/ge/cfx_pathdata.cpp b/core/fxge/ge/cfx_pathdata.cpp
new file mode 100644
index 0000000000..66792642f9
--- /dev/null
+++ b/core/fxge/ge/cfx_pathdata.cpp
@@ -0,0 +1,533 @@
+// Copyright 2016 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 "core/fxge/include/cfx_pathdata.h"
+
+#include "core/fxcrt/include/fx_system.h"
+#include "core/fxge/include/fx_ge.h"
+#include "third_party/base/numerics/safe_math.h"
+
+CFX_PathData::CFX_PathData()
+ : m_PointCount(0), m_pPoints(nullptr), m_AllocCount(0) {}
+
+CFX_PathData::~CFX_PathData() {
+ FX_Free(m_pPoints);
+}
+
+void CFX_PathData::SetPointCount(int nPoints) {
+ m_PointCount = nPoints;
+ if (m_AllocCount < nPoints) {
+ FX_Free(m_pPoints);
+ m_pPoints = FX_Alloc(FX_PATHPOINT, nPoints);
+ m_AllocCount = nPoints;
+ }
+}
+
+void CFX_PathData::AllocPointCount(int nPoints) {
+ if (m_AllocCount < nPoints) {
+ FX_PATHPOINT* pNewBuf = FX_Alloc(FX_PATHPOINT, nPoints);
+ if (m_PointCount) {
+ FXSYS_memcpy(pNewBuf, m_pPoints, m_PointCount * sizeof(FX_PATHPOINT));
+ }
+ FX_Free(m_pPoints);
+ m_pPoints = pNewBuf;
+ m_AllocCount = nPoints;
+ }
+}
+
+CFX_PathData::CFX_PathData(const CFX_PathData& src) {
+ m_PointCount = m_AllocCount = src.m_PointCount;
+ m_pPoints = FX_Alloc(FX_PATHPOINT, src.m_PointCount);
+ FXSYS_memcpy(m_pPoints, src.m_pPoints, sizeof(FX_PATHPOINT) * m_PointCount);
+}
+
+void CFX_PathData::TrimPoints(int nPoints) {
+ if (m_PointCount <= nPoints) {
+ return;
+ }
+ SetPointCount(nPoints);
+}
+
+void CFX_PathData::AddPointCount(int addPoints) {
+ pdfium::base::CheckedNumeric<int> safe_new_count = m_PointCount;
+ safe_new_count += addPoints;
+ int new_count = safe_new_count.ValueOrDie();
+ AllocPointCount(new_count);
+ m_PointCount = new_count;
+}
+
+void CFX_PathData::Append(const CFX_PathData* pSrc, const CFX_Matrix* pMatrix) {
+ int old_count = m_PointCount;
+ AddPointCount(pSrc->m_PointCount);
+ FXSYS_memcpy(m_pPoints + old_count, pSrc->m_pPoints,
+ pSrc->m_PointCount * sizeof(FX_PATHPOINT));
+ if (pMatrix) {
+ for (int i = 0; i < pSrc->m_PointCount; i++) {
+ pMatrix->Transform(m_pPoints[old_count + i].m_PointX,
+ m_pPoints[old_count + i].m_PointY);
+ }
+ }
+}
+
+void CFX_PathData::SetPoint(int index, FX_FLOAT x, FX_FLOAT y, int flag) {
+ ASSERT(index < m_PointCount);
+ m_pPoints[index].m_PointX = x;
+ m_pPoints[index].m_PointY = y;
+ m_pPoints[index].m_Flag = flag;
+}
+
+void CFX_PathData::AppendRect(FX_FLOAT left,
+ FX_FLOAT bottom,
+ FX_FLOAT right,
+ FX_FLOAT top) {
+ int old_count = m_PointCount;
+ AddPointCount(5);
+ FX_PATHPOINT* pPoints = m_pPoints + old_count;
+ pPoints[0].m_PointX = pPoints[1].m_PointX = pPoints[4].m_PointX = left;
+ pPoints[2].m_PointX = pPoints[3].m_PointX = right;
+ pPoints[0].m_PointY = pPoints[3].m_PointY = pPoints[4].m_PointY = bottom;
+ pPoints[1].m_PointY = pPoints[2].m_PointY = top;
+ pPoints[0].m_Flag = FXPT_MOVETO;
+ pPoints[1].m_Flag = pPoints[2].m_Flag = pPoints[3].m_Flag = FXPT_LINETO;
+ pPoints[4].m_Flag = FXPT_LINETO | FXPT_CLOSEFIGURE;
+}
+
+CFX_FloatRect CFX_PathData::GetBoundingBox() const {
+ CFX_FloatRect rect;
+ if (m_PointCount) {
+ rect.InitRect(m_pPoints[0].m_PointX, m_pPoints[0].m_PointY);
+ for (int i = 1; i < m_PointCount; i++) {
+ rect.UpdateRect(m_pPoints[i].m_PointX, m_pPoints[i].m_PointY);
+ }
+ }
+ return rect;
+}
+
+static void _UpdateLineEndPoints(CFX_FloatRect& rect,
+ FX_FLOAT start_x,
+ FX_FLOAT start_y,
+ FX_FLOAT end_x,
+ FX_FLOAT end_y,
+ FX_FLOAT hw) {
+ if (start_x == end_x) {
+ if (start_y == end_y) {
+ rect.UpdateRect(end_x + hw, end_y + hw);
+ rect.UpdateRect(end_x - hw, end_y - hw);
+ return;
+ }
+ FX_FLOAT point_y;
+ if (end_y < start_y) {
+ point_y = end_y - hw;
+ } else {
+ point_y = end_y + hw;
+ }
+ rect.UpdateRect(end_x + hw, point_y);
+ rect.UpdateRect(end_x - hw, point_y);
+ return;
+ }
+ if (start_y == end_y) {
+ FX_FLOAT point_x;
+ if (end_x < start_x) {
+ point_x = end_x - hw;
+ } else {
+ point_x = end_x + hw;
+ }
+ rect.UpdateRect(point_x, end_y + hw);
+ rect.UpdateRect(point_x, end_y - hw);
+ return;
+ }
+ FX_FLOAT dx = end_x - start_x;
+ FX_FLOAT dy = end_y - start_y;
+ FX_FLOAT ll = FXSYS_sqrt2(dx, dy);
+ FX_FLOAT mx = end_x + hw * dx / ll;
+ FX_FLOAT my = end_y + hw * dy / ll;
+ FX_FLOAT dx1 = hw * dy / ll;
+ FX_FLOAT dy1 = hw * dx / ll;
+ rect.UpdateRect(mx - dx1, my + dy1);
+ rect.UpdateRect(mx + dx1, my - dy1);
+}
+
+static void _UpdateLineJoinPoints(CFX_FloatRect& rect,
+ FX_FLOAT start_x,
+ FX_FLOAT start_y,
+ FX_FLOAT middle_x,
+ FX_FLOAT middle_y,
+ FX_FLOAT end_x,
+ FX_FLOAT end_y,
+ FX_FLOAT half_width,
+ FX_FLOAT miter_limit) {
+ FX_FLOAT start_k = 0, start_c = 0, end_k = 0, end_c = 0, start_len = 0,
+ start_dc = 0, end_len = 0, end_dc = 0;
+ FX_BOOL bStartVert = FXSYS_fabs(start_x - middle_x) < 1.0f / 20;
+ FX_BOOL bEndVert = FXSYS_fabs(middle_x - end_x) < 1.0f / 20;
+ if (bStartVert && bEndVert) {
+ int start_dir = middle_y > start_y ? 1 : -1;
+ FX_FLOAT point_y = middle_y + half_width * start_dir;
+ rect.UpdateRect(middle_x + half_width, point_y);
+ rect.UpdateRect(middle_x - half_width, point_y);
+ return;
+ }
+ if (!bStartVert) {
+ start_k = (middle_y - start_y) / (middle_x - start_x);
+ start_c = middle_y - (start_k * middle_x);
+ start_len = FXSYS_sqrt2(start_x - middle_x, start_y - middle_y);
+ start_dc =
+ (FX_FLOAT)FXSYS_fabs(half_width * start_len / (start_x - middle_x));
+ }
+ if (!bEndVert) {
+ end_k = (end_y - middle_y) / (end_x - middle_x);
+ end_c = middle_y - (end_k * middle_x);
+ end_len = FXSYS_sqrt2(end_x - middle_x, end_y - middle_y);
+ end_dc = (FX_FLOAT)FXSYS_fabs(half_width * end_len / (end_x - middle_x));
+ }
+ if (bStartVert) {
+ FX_FLOAT outside_x = start_x;
+ if (end_x < start_x) {
+ outside_x += half_width;
+ } else {
+ outside_x -= half_width;
+ }
+ FX_FLOAT outside_y;
+ if (start_y < (end_k * start_x) + end_c) {
+ outside_y = (end_k * outside_x) + end_c + end_dc;
+ } else {
+ outside_y = (end_k * outside_x) + end_c - end_dc;
+ }
+ rect.UpdateRect(outside_x, outside_y);
+ return;
+ }
+ if (bEndVert) {
+ FX_FLOAT outside_x = end_x;
+ if (start_x < end_x) {
+ outside_x += half_width;
+ } else {
+ outside_x -= half_width;
+ }
+ FX_FLOAT outside_y;
+ if (end_y < (start_k * end_x) + start_c) {
+ outside_y = (start_k * outside_x) + start_c + start_dc;
+ } else {
+ outside_y = (start_k * outside_x) + start_c - start_dc;
+ }
+ rect.UpdateRect(outside_x, outside_y);
+ return;
+ }
+ if (FXSYS_fabs(start_k - end_k) < 1.0f / 20) {
+ int start_dir = middle_x > start_x ? 1 : -1;
+ int end_dir = end_x > middle_x ? 1 : -1;
+ if (start_dir == end_dir) {
+ _UpdateLineEndPoints(rect, middle_x, middle_y, end_x, end_y, half_width);
+ } else {
+ _UpdateLineEndPoints(rect, start_x, start_y, middle_x, middle_y,
+ half_width);
+ }
+ return;
+ }
+ FX_FLOAT start_outside_c = start_c;
+ if (end_y < (start_k * end_x) + start_c) {
+ start_outside_c += start_dc;
+ } else {
+ start_outside_c -= start_dc;
+ }
+ FX_FLOAT end_outside_c = end_c;
+ if (start_y < (end_k * start_x) + end_c) {
+ end_outside_c += end_dc;
+ } else {
+ end_outside_c -= end_dc;
+ }
+ FX_FLOAT join_x = (end_outside_c - start_outside_c) / (start_k - end_k);
+ FX_FLOAT join_y = (start_k * join_x) + start_outside_c;
+ rect.UpdateRect(join_x, join_y);
+}
+
+CFX_FloatRect CFX_PathData::GetBoundingBox(FX_FLOAT line_width,
+ FX_FLOAT miter_limit) const {
+ CFX_FloatRect rect(100000 * 1.0f, 100000 * 1.0f, -100000 * 1.0f,
+ -100000 * 1.0f);
+ int iPoint = 0;
+ FX_FLOAT half_width = line_width;
+ int iStartPoint = 0;
+ int iEndPoint = 0;
+ int iMiddlePoint = 0;
+ FX_BOOL bJoin;
+ while (iPoint < m_PointCount) {
+ if (m_pPoints[iPoint].m_Flag == FXPT_MOVETO) {
+ iStartPoint = iPoint + 1;
+ iEndPoint = iPoint;
+ bJoin = FALSE;
+ } else {
+ if (m_pPoints[iPoint].m_Flag == FXPT_BEZIERTO) {
+ rect.UpdateRect(m_pPoints[iPoint].m_PointX, m_pPoints[iPoint].m_PointY);
+ rect.UpdateRect(m_pPoints[iPoint + 1].m_PointX,
+ m_pPoints[iPoint + 1].m_PointY);
+ iPoint += 2;
+ }
+ if (iPoint == m_PointCount - 1 ||
+ m_pPoints[iPoint + 1].m_Flag == FXPT_MOVETO) {
+ iStartPoint = iPoint - 1;
+ iEndPoint = iPoint;
+ bJoin = FALSE;
+ } else {
+ iStartPoint = iPoint - 1;
+ iMiddlePoint = iPoint;
+ iEndPoint = iPoint + 1;
+ bJoin = TRUE;
+ }
+ }
+ FX_FLOAT start_x = m_pPoints[iStartPoint].m_PointX;
+ FX_FLOAT start_y = m_pPoints[iStartPoint].m_PointY;
+ FX_FLOAT end_x = m_pPoints[iEndPoint].m_PointX;
+ FX_FLOAT end_y = m_pPoints[iEndPoint].m_PointY;
+ if (bJoin) {
+ FX_FLOAT middle_x = m_pPoints[iMiddlePoint].m_PointX;
+ FX_FLOAT middle_y = m_pPoints[iMiddlePoint].m_PointY;
+ _UpdateLineJoinPoints(rect, start_x, start_y, middle_x, middle_y, end_x,
+ end_y, half_width, miter_limit);
+ } else {
+ _UpdateLineEndPoints(rect, start_x, start_y, end_x, end_y, half_width);
+ }
+ iPoint++;
+ }
+ return rect;
+}
+
+void CFX_PathData::Transform(const CFX_Matrix* pMatrix) {
+ if (!pMatrix) {
+ return;
+ }
+ for (int i = 0; i < m_PointCount; i++) {
+ pMatrix->Transform(m_pPoints[i].m_PointX, m_pPoints[i].m_PointY);
+ }
+}
+
+FX_BOOL CFX_PathData::GetZeroAreaPath(CFX_PathData& NewPath,
+ CFX_Matrix* pMatrix,
+ FX_BOOL& bThin,
+ FX_BOOL bAdjust) const {
+ if (m_PointCount < 3) {
+ return FALSE;
+ }
+ if (m_PointCount == 3 && (m_pPoints[0].m_Flag & FXPT_TYPE) == FXPT_MOVETO &&
+ (m_pPoints[1].m_Flag & FXPT_TYPE) == FXPT_LINETO &&
+ (m_pPoints[2].m_Flag & FXPT_TYPE) == FXPT_LINETO &&
+ m_pPoints[0].m_PointX == m_pPoints[2].m_PointX &&
+ m_pPoints[0].m_PointY == m_pPoints[2].m_PointY) {
+ NewPath.AddPointCount(2);
+ if (bAdjust) {
+ if (pMatrix) {
+ FX_FLOAT x = m_pPoints[0].m_PointX, y = m_pPoints[0].m_PointY;
+ pMatrix->TransformPoint(x, y);
+ x = (int)x + 0.5f;
+ y = (int)y + 0.5f;
+ NewPath.SetPoint(0, x, y, FXPT_MOVETO);
+ x = m_pPoints[1].m_PointX, y = m_pPoints[1].m_PointY;
+ pMatrix->TransformPoint(x, y);
+ x = (int)x + 0.5f;
+ y = (int)y + 0.5f;
+ NewPath.SetPoint(1, x, y, FXPT_LINETO);
+ pMatrix->SetIdentity();
+ } else {
+ FX_FLOAT x = (int)m_pPoints[0].m_PointX + 0.5f,
+ y = (int)m_pPoints[0].m_PointY + 0.5f;
+ NewPath.SetPoint(0, x, y, FXPT_MOVETO);
+ x = (int)m_pPoints[1].m_PointX + 0.5f,
+ y = (int)m_pPoints[1].m_PointY + 0.5f;
+ NewPath.SetPoint(1, x, y, FXPT_LINETO);
+ }
+ } else {
+ NewPath.SetPoint(0, m_pPoints[0].m_PointX, m_pPoints[0].m_PointY,
+ FXPT_MOVETO);
+ NewPath.SetPoint(1, m_pPoints[1].m_PointX, m_pPoints[1].m_PointY,
+ FXPT_LINETO);
+ }
+ if (m_pPoints[0].m_PointX != m_pPoints[1].m_PointX &&
+ m_pPoints[0].m_PointY != m_pPoints[1].m_PointY) {
+ bThin = TRUE;
+ }
+ return TRUE;
+ }
+ if (((m_PointCount > 3) && (m_PointCount % 2))) {
+ int mid = m_PointCount / 2;
+ FX_BOOL bZeroArea = FALSE;
+ CFX_PathData t_path;
+ for (int i = 0; i < mid; i++) {
+ if (!(m_pPoints[mid - i - 1].m_PointX ==
+ m_pPoints[mid + i + 1].m_PointX &&
+ m_pPoints[mid - i - 1].m_PointY ==
+ m_pPoints[mid + i + 1].m_PointY &&
+ ((m_pPoints[mid - i - 1].m_Flag & FXPT_TYPE) != FXPT_BEZIERTO &&
+ (m_pPoints[mid + i + 1].m_Flag & FXPT_TYPE) != FXPT_BEZIERTO))) {
+ bZeroArea = TRUE;
+ break;
+ }
+ int new_count = t_path.GetPointCount();
+ t_path.AddPointCount(2);
+ t_path.SetPoint(new_count, m_pPoints[mid - i].m_PointX,
+ m_pPoints[mid - i].m_PointY, FXPT_MOVETO);
+ t_path.SetPoint(new_count + 1, m_pPoints[mid - i - 1].m_PointX,
+ m_pPoints[mid - i - 1].m_PointY, FXPT_LINETO);
+ }
+ if (!bZeroArea) {
+ NewPath.Append(&t_path, nullptr);
+ bThin = TRUE;
+ return TRUE;
+ }
+ }
+ int stratPoint = 0;
+ int next = 0, i;
+ for (i = 0; i < m_PointCount; i++) {
+ int point_type = m_pPoints[i].m_Flag & FXPT_TYPE;
+ if (point_type == FXPT_MOVETO) {
+ stratPoint = i;
+ } else if (point_type == FXPT_LINETO) {
+ next = (i + 1 - stratPoint) % (m_PointCount - stratPoint) + stratPoint;
+ if ((m_pPoints[next].m_Flag & FXPT_TYPE) != FXPT_BEZIERTO &&
+ (m_pPoints[next].m_Flag & FXPT_TYPE) != FXPT_MOVETO) {
+ if ((m_pPoints[i - 1].m_PointX == m_pPoints[i].m_PointX &&
+ m_pPoints[i].m_PointX == m_pPoints[next].m_PointX) &&
+ ((m_pPoints[i].m_PointY - m_pPoints[i - 1].m_PointY) *
+ (m_pPoints[i].m_PointY - m_pPoints[next].m_PointY) >
+ 0)) {
+ int pre = i;
+ if (FXSYS_fabs(m_pPoints[i].m_PointY - m_pPoints[i - 1].m_PointY) <
+ FXSYS_fabs(m_pPoints[i].m_PointY - m_pPoints[next].m_PointY)) {
+ pre--;
+ next--;
+ }
+ int new_count = NewPath.GetPointCount();
+ NewPath.AddPointCount(2);
+ NewPath.SetPoint(new_count, m_pPoints[pre].m_PointX,
+ m_pPoints[pre].m_PointY, FXPT_MOVETO);
+ NewPath.SetPoint(new_count + 1, m_pPoints[next].m_PointX,
+ m_pPoints[next].m_PointY, FXPT_LINETO);
+ } else if ((m_pPoints[i - 1].m_PointY == m_pPoints[i].m_PointY &&
+ m_pPoints[i].m_PointY == m_pPoints[next].m_PointY) &&
+ ((m_pPoints[i].m_PointX - m_pPoints[i - 1].m_PointX) *
+ (m_pPoints[i].m_PointX - m_pPoints[next].m_PointX) >
+ 0)) {
+ int pre = i;
+ if (FXSYS_fabs(m_pPoints[i].m_PointX - m_pPoints[i - 1].m_PointX) <
+ FXSYS_fabs(m_pPoints[i].m_PointX - m_pPoints[next].m_PointX)) {
+ pre--;
+ next--;
+ }
+ int new_count = NewPath.GetPointCount();
+ NewPath.AddPointCount(2);
+ NewPath.SetPoint(new_count, m_pPoints[pre].m_PointX,
+ m_pPoints[pre].m_PointY, FXPT_MOVETO);
+ NewPath.SetPoint(new_count + 1, m_pPoints[next].m_PointX,
+ m_pPoints[next].m_PointY, FXPT_LINETO);
+ } else if ((m_pPoints[i - 1].m_Flag & FXPT_TYPE) == FXPT_MOVETO &&
+ (m_pPoints[next].m_Flag & FXPT_TYPE) == FXPT_LINETO &&
+ m_pPoints[i - 1].m_PointX == m_pPoints[next].m_PointX &&
+ m_pPoints[i - 1].m_PointY == m_pPoints[next].m_PointY &&
+ m_pPoints[next].m_Flag & FXPT_CLOSEFIGURE) {
+ int new_count = NewPath.GetPointCount();
+ NewPath.AddPointCount(2);
+ NewPath.SetPoint(new_count, m_pPoints[i - 1].m_PointX,
+ m_pPoints[i - 1].m_PointY, FXPT_MOVETO);
+ NewPath.SetPoint(new_count + 1, m_pPoints[i].m_PointX,
+ m_pPoints[i].m_PointY, FXPT_LINETO);
+ bThin = TRUE;
+ }
+ }
+ } else if (point_type == FXPT_BEZIERTO) {
+ i += 2;
+ continue;
+ }
+ }
+ if (m_PointCount > 3 && NewPath.GetPointCount()) {
+ bThin = TRUE;
+ }
+ if (NewPath.GetPointCount() == 0) {
+ return FALSE;
+ }
+ return TRUE;
+}
+
+FX_BOOL CFX_PathData::IsRect() const {
+ if (m_PointCount != 5 && m_PointCount != 4) {
+ return FALSE;
+ }
+ if ((m_PointCount == 5 && (m_pPoints[0].m_PointX != m_pPoints[4].m_PointX ||
+ m_pPoints[0].m_PointY != m_pPoints[4].m_PointY)) ||
+ (m_pPoints[0].m_PointX == m_pPoints[2].m_PointX &&
+ m_pPoints[0].m_PointY == m_pPoints[2].m_PointY) ||
+ (m_pPoints[1].m_PointX == m_pPoints[3].m_PointX &&
+ m_pPoints[1].m_PointY == m_pPoints[3].m_PointY)) {
+ return FALSE;
+ }
+ if (m_pPoints[0].m_PointX != m_pPoints[3].m_PointX &&
+ m_pPoints[0].m_PointY != m_pPoints[3].m_PointY) {
+ return FALSE;
+ }
+ for (int i = 1; i < 4; i++) {
+ if ((m_pPoints[i].m_Flag & FXPT_TYPE) != FXPT_LINETO) {
+ return FALSE;
+ }
+ if (m_pPoints[i].m_PointX != m_pPoints[i - 1].m_PointX &&
+ m_pPoints[i].m_PointY != m_pPoints[i - 1].m_PointY) {
+ return FALSE;
+ }
+ }
+ return m_PointCount == 5 || (m_pPoints[3].m_Flag & FXPT_CLOSEFIGURE);
+}
+
+FX_BOOL CFX_PathData::IsRect(const CFX_Matrix* pMatrix,
+ CFX_FloatRect* pRect) const {
+ if (!pMatrix) {
+ if (!IsRect()) {
+ return FALSE;
+ }
+ if (pRect) {
+ pRect->left = m_pPoints[0].m_PointX;
+ pRect->right = m_pPoints[2].m_PointX;
+ pRect->bottom = m_pPoints[0].m_PointY;
+ pRect->top = m_pPoints[2].m_PointY;
+ pRect->Normalize();
+ }
+ return TRUE;
+ }
+ if (m_PointCount != 5 && m_PointCount != 4) {
+ return FALSE;
+ }
+ if ((m_PointCount == 5 && (m_pPoints[0].m_PointX != m_pPoints[4].m_PointX ||
+ m_pPoints[0].m_PointY != m_pPoints[4].m_PointY)) ||
+ (m_pPoints[1].m_PointX == m_pPoints[3].m_PointX &&
+ m_pPoints[1].m_PointY == m_pPoints[3].m_PointY)) {
+ return FALSE;
+ }
+ if (m_PointCount == 4 && m_pPoints[0].m_PointX != m_pPoints[3].m_PointX &&
+ m_pPoints[0].m_PointY != m_pPoints[3].m_PointY) {
+ return FALSE;
+ }
+ FX_FLOAT x[5], y[5];
+ for (int i = 0; i < m_PointCount; i++) {
+ pMatrix->Transform(m_pPoints[i].m_PointX, m_pPoints[i].m_PointY, x[i],
+ y[i]);
+ if (i) {
+ if ((m_pPoints[i].m_Flag & FXPT_TYPE) != FXPT_LINETO) {
+ return FALSE;
+ }
+ if (x[i] != x[i - 1] && y[i] != y[i - 1]) {
+ return FALSE;
+ }
+ }
+ }
+ if (pRect) {
+ pRect->left = x[0];
+ pRect->right = x[2];
+ pRect->bottom = y[0];
+ pRect->top = y[2];
+ pRect->Normalize();
+ }
+ return TRUE;
+}
+
+void CFX_PathData::Copy(const CFX_PathData& src) {
+ SetPointCount(src.m_PointCount);
+ FXSYS_memcpy(m_pPoints, src.m_pPoints, sizeof(FX_PATHPOINT) * m_PointCount);
+}