diff options
Diffstat (limited to 'core/src/fxge/ge/fx_ge_path.cpp')
| -rw-r--r-- | core/src/fxge/ge/fx_ge_path.cpp | 654 |
1 files changed, 654 insertions, 0 deletions
diff --git a/core/src/fxge/ge/fx_ge_path.cpp b/core/src/fxge/ge/fx_ge_path.cpp new file mode 100644 index 0000000000..fc6ee52f1f --- /dev/null +++ b/core/src/fxge/ge/fx_ge_path.cpp @@ -0,0 +1,654 @@ +// 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 "../../../include/fxcrt/fx_basic.h"
+#include "../../../include/fxge/fx_ge.h"
+CFX_ClipRgn::CFX_ClipRgn(int width, int height)
+{
+ m_Type = RectI;
+ m_Box.left = m_Box.top = 0;
+ m_Box.right = width;
+ m_Box.bottom = height;
+}
+CFX_ClipRgn::CFX_ClipRgn(const FX_RECT& rect)
+{
+ m_Type = RectI;
+ m_Box = rect;
+}
+CFX_ClipRgn::CFX_ClipRgn(const CFX_ClipRgn& src)
+{
+ m_Type = src.m_Type;
+ m_Box = src.m_Box;
+ m_Mask = src.m_Mask;
+}
+CFX_ClipRgn::~CFX_ClipRgn()
+{
+}
+void CFX_ClipRgn::Reset(const FX_RECT& rect)
+{
+ m_Type = RectI;
+ m_Box = rect;
+ m_Mask.SetNull();
+}
+void CFX_ClipRgn::IntersectRect(const FX_RECT& rect)
+{
+ if (m_Type == RectI) {
+ m_Box.Intersect(rect);
+ return;
+ }
+ if (m_Type == MaskF) {
+ IntersectMaskRect(rect, m_Box, m_Mask);
+ return;
+ }
+}
+void CFX_ClipRgn::IntersectMaskRect(FX_RECT rect, FX_RECT mask_rect, CFX_DIBitmapRef Mask)
+{
+ const CFX_DIBitmap* mask_dib = Mask;
+ m_Type = MaskF;
+ m_Box = rect;
+ m_Box.Intersect(mask_rect);
+ if (m_Box.IsEmpty()) {
+ m_Type = RectI;
+ return;
+ } else if (m_Box == mask_rect) {
+ m_Mask = Mask;
+ return;
+ }
+ CFX_DIBitmap* new_dib = m_Mask.New();
+ if (!new_dib) {
+ return;
+ }
+ new_dib->Create(m_Box.Width(), m_Box.Height(), FXDIB_8bppMask);
+ for (int row = m_Box.top; row < m_Box.bottom; row ++) {
+ FX_LPBYTE dest_scan = new_dib->GetBuffer() + new_dib->GetPitch() * (row - m_Box.top);
+ FX_LPBYTE src_scan = mask_dib->GetBuffer() + mask_dib->GetPitch() * (row - mask_rect.top);
+ for (int col = m_Box.left; col < m_Box.right; col ++) {
+ dest_scan[col - m_Box.left] = src_scan[col - mask_rect.left];
+ }
+ }
+}
+void CFX_ClipRgn::IntersectMaskF(int left, int top, CFX_DIBitmapRef Mask)
+{
+ const CFX_DIBitmap* mask_dib = Mask;
+ ASSERT(mask_dib->GetFormat() == FXDIB_8bppMask);
+ FX_RECT mask_box(left, top, left + mask_dib->GetWidth(), top + mask_dib->GetHeight());
+ if (m_Type == RectI) {
+ IntersectMaskRect(m_Box, mask_box, Mask);
+ return;
+ }
+ if (m_Type == MaskF) {
+ FX_RECT new_box = m_Box;
+ new_box.Intersect(mask_box);
+ if (new_box.IsEmpty()) {
+ m_Type = RectI;
+ m_Mask.SetNull();
+ m_Box = new_box;
+ return;
+ }
+ CFX_DIBitmapRef new_mask;
+ CFX_DIBitmap* new_dib = new_mask.New();
+ if (!new_dib) {
+ return;
+ }
+ new_dib->Create(new_box.Width(), new_box.Height(), FXDIB_8bppMask);
+ const CFX_DIBitmap* old_dib = m_Mask;
+ for (int row = new_box.top; row < new_box.bottom; row ++) {
+ FX_LPBYTE old_scan = old_dib->GetBuffer() + (row - m_Box.top) * old_dib->GetPitch();
+ FX_LPBYTE mask_scan = mask_dib->GetBuffer() + (row - top) * mask_dib->GetPitch();
+ FX_LPBYTE new_scan = new_dib->GetBuffer() + (row - new_box.top) * new_dib->GetPitch();
+ for (int col = new_box.left; col < new_box.right; col ++) {
+ new_scan[col - new_box.left] = old_scan[col - m_Box.left] * mask_scan[col - left] / 255;
+ }
+ }
+ m_Box = new_box;
+ m_Mask = new_mask;
+ return;
+ }
+ ASSERT(FALSE);
+}
+CFX_PathData::CFX_PathData()
+{
+ m_PointCount = m_AllocCount = 0;
+ m_pPoints = NULL;
+}
+CFX_PathData::~CFX_PathData()
+{
+ if (m_pPoints) {
+ FX_Free(m_pPoints);
+ }
+}
+FX_BOOL CFX_PathData::SetPointCount(int nPoints)
+{
+ m_PointCount = nPoints;
+ if (m_AllocCount < nPoints) {
+ if (m_pPoints) {
+ FX_Free(m_pPoints);
+ m_pPoints = NULL;
+ }
+ m_pPoints = FX_Alloc(FX_PATHPOINT, nPoints);
+ if (!m_pPoints) {
+ return FALSE;
+ }
+ m_AllocCount = nPoints;
+ }
+ return TRUE;
+}
+FX_BOOL CFX_PathData::AllocPointCount(int nPoints)
+{
+ if (m_AllocCount < nPoints) {
+ FX_PATHPOINT* pNewBuf = FX_Alloc(FX_PATHPOINT, nPoints);
+ if (!pNewBuf) {
+ return FALSE;
+ }
+ if (m_PointCount) {
+ FXSYS_memcpy32(pNewBuf, m_pPoints, m_PointCount * sizeof(FX_PATHPOINT));
+ }
+ if (m_pPoints) {
+ FX_Free(m_pPoints);
+ }
+ m_pPoints = pNewBuf;
+ m_AllocCount = nPoints;
+ }
+ return TRUE;
+}
+CFX_PathData::CFX_PathData(const CFX_PathData& src)
+{
+ m_pPoints = NULL;
+ m_PointCount = m_AllocCount = src.m_PointCount;
+ m_pPoints = FX_Alloc(FX_PATHPOINT, src.m_PointCount);
+ if (!m_pPoints) {
+ return;
+ }
+ FXSYS_memcpy32(m_pPoints, src.m_pPoints, sizeof(FX_PATHPOINT) * m_PointCount);
+}
+void CFX_PathData::TrimPoints(int nPoints)
+{
+ if (m_PointCount <= nPoints) {
+ return;
+ }
+ SetPointCount(nPoints);
+}
+FX_BOOL CFX_PathData::AddPointCount(int addPoints)
+{
+ int new_count = m_PointCount + addPoints;
+ if (!AllocPointCount(new_count)) {
+ return FALSE;
+ }
+ m_PointCount = new_count;
+ return TRUE;
+}
+FX_BOOL CFX_PathData::Append(const CFX_PathData* pSrc, const CFX_AffineMatrix* pMatrix)
+{
+ int old_count = m_PointCount;
+ if (!AddPointCount(pSrc->m_PointCount)) {
+ return FALSE;
+ }
+ FXSYS_memcpy32(m_pPoints + old_count, pSrc->m_pPoints, pSrc->m_PointCount * sizeof(FX_PATHPOINT));
+ if (pMatrix == NULL) {
+ return TRUE;
+ }
+ 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);
+ }
+ return TRUE;
+}
+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;
+}
+FX_BOOL CFX_PathData::AppendRect(FX_FLOAT left, FX_FLOAT bottom, FX_FLOAT right, FX_FLOAT top)
+{
+ int old_count = m_PointCount;
+ if (!AddPointCount(5)) {
+ return FALSE;
+ }
+ 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;
+ return TRUE;
+}
+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;
+ } else 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 = FXSYS_Div(middle_y - start_y, middle_x - start_x);
+ start_c = middle_y - FXSYS_Mul(start_k, middle_x);
+ start_len = FXSYS_sqrt2(start_x - middle_x, start_y - middle_y);
+ start_dc = (FX_FLOAT)FXSYS_fabs(FXSYS_MulDiv(half_width, start_len, start_x - middle_x));
+ }
+ if (!bEndVert) {
+ end_k = FXSYS_Div(end_y - middle_y, end_x - middle_x);
+ end_c = middle_y - FXSYS_Mul(end_k, middle_x);
+ end_len = FXSYS_sqrt2(end_x - middle_x, end_y - middle_y);
+ end_dc = (FX_FLOAT)FXSYS_fabs(FXSYS_MulDiv(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 < FXSYS_Mul(end_k, start_x) + end_c) {
+ outside_y = FXSYS_Mul(end_k, outside_x) + end_c + end_dc;
+ } else {
+ outside_y = FXSYS_Mul(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 < FXSYS_Mul(start_k, end_x) + start_c) {
+ outside_y = FXSYS_Mul(start_k, outside_x) + start_c + start_dc;
+ } else {
+ outside_y = FXSYS_Mul(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 < FXSYS_Mul(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 < FXSYS_Mul(end_k, start_x) + end_c) {
+ end_outside_c += end_dc;
+ } else {
+ end_outside_c -= end_dc;
+ }
+ FX_FLOAT join_x = FXSYS_Div(end_outside_c - start_outside_c, start_k - end_k);
+ FX_FLOAT join_y = FXSYS_Mul(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, iEndPoint, iMiddlePoint;
+ 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_AffineMatrix* pMatrix)
+{
+ if (pMatrix == NULL) {
+ return;
+ }
+ for (int i = 0; i < m_PointCount; i ++) {
+ pMatrix->Transform(m_pPoints[i].m_PointX, m_pPoints[i].m_PointY);
+ }
+}
+const int g_Distant[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
+FX_BOOL CFX_PathData::GetZeroAreaPath(CFX_PathData& NewPath, CFX_AffineMatrix* 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, NULL);
+ 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_AffineMatrix* pMatrix, CFX_FloatRect* pRect) const
+{
+ if (pMatrix == NULL) {
+ 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;
+}
+FX_BOOL CFX_PathData::Copy(const CFX_PathData &src)
+{
+ if (!SetPointCount(src.m_PointCount)) {
+ return FALSE;
+ }
+ FXSYS_memcpy32(m_pPoints, src.m_pPoints, sizeof(FX_PATHPOINT) * m_PointCount);
+ return TRUE;
+}
+CFX_GraphStateData::CFX_GraphStateData()
+{
+ m_LineCap = LineCapButt;
+ m_DashCount = 0;
+ m_DashArray = NULL;
+ m_DashPhase = 0;
+ m_LineJoin = LineJoinMiter;
+ m_MiterLimit = 10 * 1.0f;
+ m_LineWidth = 1.0f;
+}
+CFX_GraphStateData::CFX_GraphStateData(const CFX_GraphStateData& src)
+{
+ m_DashArray = NULL;
+ Copy(src);
+}
+void CFX_GraphStateData::Copy(const CFX_GraphStateData& src)
+{
+ m_LineCap = src.m_LineCap;
+ m_DashCount = src.m_DashCount;
+ if (m_DashArray) {
+ FX_Free(m_DashArray);
+ }
+ m_DashArray = NULL;
+ m_DashPhase = src.m_DashPhase;
+ m_LineJoin = src.m_LineJoin;
+ m_MiterLimit = src.m_MiterLimit;
+ m_LineWidth = src.m_LineWidth;
+ if (m_DashCount) {
+ m_DashArray = FX_Alloc(FX_FLOAT, m_DashCount);
+ if (!m_DashArray) {
+ return;
+ }
+ FXSYS_memcpy32(m_DashArray, src.m_DashArray, m_DashCount * sizeof(FX_FLOAT));
+ }
+}
+CFX_GraphStateData::~CFX_GraphStateData()
+{
+ if (m_DashArray) {
+ FX_Free(m_DashArray);
+ }
+}
+void CFX_GraphStateData::SetDashCount(int count)
+{
+ if (m_DashArray) {
+ FX_Free(m_DashArray);
+ }
+ m_DashArray = NULL;
+ m_DashCount = count;
+ if (count == 0) {
+ return;
+ }
+ m_DashArray = FX_Alloc(FX_FLOAT, count);
+}
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