Index: xfa/src/fxgraphics/src/fx_path_generator.cpp |
diff --git a/xfa/src/fxgraphics/src/fx_path_generator.cpp b/xfa/src/fxgraphics/src/fx_path_generator.cpp |
index 116a9df28ed95442d3995ff17e413be4265c6534..3df5532309f2510175ef967090b563ed37b43f9f 100644 |
--- a/xfa/src/fxgraphics/src/fx_path_generator.cpp |
+++ b/xfa/src/fxgraphics/src/fx_path_generator.cpp |
@@ -1,239 +1,239 @@ |
-// 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 "pre.h" |
-#include "fx_path_generator.h" |
-CFX_PathGenerator::CFX_PathGenerator() { |
- m_pPathData = NULL; |
-} |
-void CFX_PathGenerator::Create() { |
- m_pPathData = new CFX_PathData; |
-} |
-CFX_PathGenerator::~CFX_PathGenerator() { |
- if (m_pPathData) { |
- delete m_pPathData; |
- m_pPathData = NULL; |
- } |
-} |
-void CFX_PathGenerator::AddPathData(CFX_PathData* pPathData) { |
- if (pPathData && pPathData->GetPointCount() > 0) { |
- int nCount = pPathData->GetPointCount(); |
- FX_PATHPOINT* pPoints = pPathData->GetPoints(); |
- AddPathData(pPoints, nCount); |
- } |
-} |
-void CFX_PathGenerator::AddPathData(FX_PATHPOINT* pPoints, int nCount) { |
- if (pPoints && nCount > 0) { |
- int nOldCount = m_pPathData->GetPointCount(); |
- m_pPathData->AddPointCount(nCount); |
- FX_PATHPOINT* pDstPoints = m_pPathData->GetPoints(); |
- FXSYS_memcpy(pDstPoints + nOldCount, pPoints, |
- sizeof(FX_PATHPOINT) * nCount); |
- } |
-} |
-void CFX_PathGenerator::MoveTo(FX_FLOAT x, FX_FLOAT y) { |
- m_pPathData->AddPointCount(1); |
- m_pPathData->SetPoint(m_pPathData->GetPointCount() - 1, x, y, FXPT_MOVETO); |
-} |
-void CFX_PathGenerator::LineTo(FX_FLOAT x, FX_FLOAT y) { |
- m_pPathData->AddPointCount(1); |
- m_pPathData->SetPoint(m_pPathData->GetPointCount() - 1, x, y, FXPT_LINETO); |
-} |
-void CFX_PathGenerator::BezierTo(FX_FLOAT ctrl_x1, |
- FX_FLOAT ctrl_y1, |
- FX_FLOAT ctrl_x2, |
- FX_FLOAT ctrl_y2, |
- FX_FLOAT to_x, |
- FX_FLOAT to_y) { |
- int old_count = m_pPathData->GetPointCount(); |
- m_pPathData->AddPointCount(3); |
- m_pPathData->SetPoint(old_count, ctrl_x1, ctrl_y1, FXPT_BEZIERTO); |
- m_pPathData->SetPoint(old_count + 1, ctrl_x2, ctrl_y2, FXPT_BEZIERTO); |
- m_pPathData->SetPoint(old_count + 2, to_x, to_y, FXPT_BEZIERTO); |
-} |
-void CFX_PathGenerator::Close() { |
- if (m_pPathData->GetPointCount() > 0) { |
- int index = m_pPathData->GetPointCount() - 1; |
- FX_PATHPOINT* pPoints = m_pPathData->GetPoints(); |
- pPoints[index].m_Flag |= FXPT_CLOSEFIGURE; |
- } |
-} |
-void CFX_PathGenerator::AddLine(FX_FLOAT x1, |
- FX_FLOAT y1, |
- FX_FLOAT x2, |
- FX_FLOAT y2) { |
- int old_count = m_pPathData->GetPointCount(); |
- m_pPathData->AddPointCount(2); |
- m_pPathData->SetPoint(old_count, x1, y1, FXPT_MOVETO); |
- m_pPathData->SetPoint(old_count + 1, x2, y2, FXPT_LINETO); |
-} |
-void CFX_PathGenerator::AddBezier(FX_FLOAT start_x, |
- FX_FLOAT start_y, |
- FX_FLOAT ctrl_x1, |
- FX_FLOAT ctrl_y1, |
- FX_FLOAT ctrl_x2, |
- FX_FLOAT ctrl_y2, |
- FX_FLOAT end_x, |
- FX_FLOAT end_y) { |
- int old_count = m_pPathData->GetPointCount(); |
- m_pPathData->AddPointCount(4); |
- m_pPathData->SetPoint(old_count, start_x, start_y, FXPT_MOVETO); |
- m_pPathData->SetPoint(old_count + 1, ctrl_x1, ctrl_y1, FXPT_BEZIERTO); |
- m_pPathData->SetPoint(old_count + 2, ctrl_x2, ctrl_y2, FXPT_BEZIERTO); |
- m_pPathData->SetPoint(old_count + 3, end_x, end_y, FXPT_BEZIERTO); |
-} |
-void CFX_PathGenerator::AddRectangle(FX_FLOAT x1, |
- FX_FLOAT y1, |
- FX_FLOAT x2, |
- FX_FLOAT y2) { |
- m_pPathData->AppendRect(x1, y1, x2, y2); |
-} |
-void CFX_PathGenerator::AddEllipse(FX_FLOAT x, |
- FX_FLOAT y, |
- FX_FLOAT width, |
- FX_FLOAT height) { |
-#if 0 |
- FX_FIXFLOAT16 k; |
- k = fix16_to_8(fixsqrt_32_to_16(fixmul_8_8_to_32(width, width) + fixmul_8_8_to_32(height, height)) / 2); |
- int old_count = m_pPathData->GetPointCount(); |
- m_pPathData->AddPointCount(7); |
- m_pPathData->SetPoint(old_count, x, y - height / 2, FXPT_MOVETO); |
- m_pPathData->SetPoint(old_count + 1, x + k, y - height / 2, FXPT_BEZIERTO); |
- m_pPathData->SetPoint(old_count + 2, x + k, y + height / 2, FXPT_BEZIERTO); |
- m_pPathData->SetPoint(old_count + 3, x, y + height / 2, FXPT_BEZIERTO); |
- m_pPathData->SetPoint(old_count + 4, x - k, y + height / 2, FXPT_BEZIERTO); |
- m_pPathData->SetPoint(old_count + 5, x - k, y - height / 2, FXPT_BEZIERTO); |
- m_pPathData->SetPoint(old_count + 6, x, y - height / 2, FXPT_BEZIERTO); |
-#else |
- AddArc(x, y, width, height, 0, FX_PI * 2); |
-#endif |
-} |
-void CFX_PathGenerator::ArcTo(FX_FLOAT x, |
- FX_FLOAT y, |
- FX_FLOAT width, |
- FX_FLOAT height, |
- FX_FLOAT start_angle, |
- FX_FLOAT sweep_angle) { |
- FX_FLOAT x0 = FXSYS_cos(sweep_angle / 2); |
- FX_FLOAT y0 = FXSYS_sin(sweep_angle / 2); |
- FX_FLOAT tx = FXSYS_Div((1.0f - x0) * 4, 3 * 1.0f); |
- FX_FLOAT ty = y0 - FXSYS_Div(FXSYS_Mul(tx, x0), y0); |
- FX_FLOAT px[3], py[3]; |
- px[0] = x0 + tx; |
- py[0] = -ty; |
- px[1] = x0 + tx; |
- py[1] = ty; |
- FX_FLOAT sn = FXSYS_sin(start_angle + sweep_angle / 2); |
- FX_FLOAT cs = FXSYS_cos(start_angle + sweep_angle / 2); |
- int old_count = m_pPathData->GetPointCount(); |
- m_pPathData->AddPointCount(3); |
- FX_FLOAT bezier_x, bezier_y; |
- bezier_x = x + FXSYS_Mul(width, FXSYS_Mul(px[0], cs) - FXSYS_Mul(py[0], sn)); |
- bezier_y = y + FXSYS_Mul(height, FXSYS_Mul(px[0], sn) + FXSYS_Mul(py[0], cs)); |
- m_pPathData->SetPoint(old_count, bezier_x, bezier_y, FXPT_BEZIERTO); |
- bezier_x = x + FXSYS_Mul(width, FXSYS_Mul(px[1], cs) - FXSYS_Mul(py[1], sn)); |
- bezier_y = y + FXSYS_Mul(height, FXSYS_Mul(px[1], sn) + FXSYS_Mul(py[1], cs)); |
- m_pPathData->SetPoint(old_count + 1, bezier_x, bezier_y, FXPT_BEZIERTO); |
- bezier_x = x + FXSYS_Mul(width, FXSYS_cos(start_angle + sweep_angle)), |
- bezier_y = y + FXSYS_Mul(height, FXSYS_sin(start_angle + sweep_angle)); |
- m_pPathData->SetPoint(old_count + 2, bezier_x, bezier_y, FXPT_BEZIERTO); |
-} |
-void CFX_PathGenerator::AddArc(FX_FLOAT x, |
- FX_FLOAT y, |
- FX_FLOAT width, |
- FX_FLOAT height, |
- FX_FLOAT start_angle, |
- FX_FLOAT sweep_angle) { |
-#if 0 |
- FX_FIXFLOAT32 sweep = sweep_angle; |
- while (sweep > FIXFLOAT32_PI * 2) { |
- sweep -= FIXFLOAT32_PI * 2; |
- } |
- if (sweep == 0) { |
- return; |
- } |
- m_pPathData->AddPointCount(1); |
- m_pPathData->SetPoint(m_pPathData->GetPointCount() - 1, |
- x + fixmul_8_32_to_8(width, fixcos(start_angle)), |
- y + fixmul_8_32_to_8(height, fixsin(start_angle)), FXPT_MOVETO); |
- FX_FIXFLOAT32 angle1 = 0, angle2; |
- FX_BOOL bDone = FALSE; |
- do { |
- angle2 = angle1 + FIXFLOAT32_PI / 2; |
- if (angle2 >= sweep) { |
- angle2 = sweep; |
- bDone = TRUE; |
- } |
- ArcTo(x, y, width, height, start_angle + angle1, angle2 - angle1); |
- angle1 = angle2; |
- } while (!bDone); |
-#else |
- if (sweep_angle == 0) { |
- return; |
- } |
- static const FX_FLOAT bezier_arc_angle_epsilon = (FX_FLOAT)(0.01f); |
- while (start_angle > FX_PI * 2) { |
- start_angle -= FX_PI * 2; |
- } |
- while (start_angle < 0) { |
- start_angle += FX_PI * 2; |
- } |
- if (sweep_angle >= FX_PI * 2) { |
- sweep_angle = FX_PI * 2; |
- } |
- if (sweep_angle <= -FX_PI * 2) { |
- sweep_angle = -FX_PI * 2; |
- } |
- m_pPathData->AddPointCount(1); |
- m_pPathData->SetPoint(m_pPathData->GetPointCount() - 1, |
- x + FXSYS_Mul(width, FXSYS_cos(start_angle)), |
- y + FXSYS_Mul(height, FXSYS_sin(start_angle)), |
- FXPT_MOVETO); |
- FX_FLOAT total_sweep = 0, local_sweep = 0, prev_sweep = 0; |
- FX_BOOL done = FALSE; |
- do { |
- if (sweep_angle < 0) { |
- prev_sweep = total_sweep; |
- local_sweep = -FX_PI / 2; |
- total_sweep -= FX_PI / 2; |
- if (total_sweep <= sweep_angle + bezier_arc_angle_epsilon) { |
- local_sweep = sweep_angle - prev_sweep; |
- done = TRUE; |
- } |
- } else { |
- prev_sweep = total_sweep; |
- local_sweep = FX_PI / 2; |
- total_sweep += FX_PI / 2; |
- if (total_sweep >= sweep_angle - bezier_arc_angle_epsilon) { |
- local_sweep = sweep_angle - prev_sweep; |
- done = TRUE; |
- } |
- } |
- ArcTo(x, y, width, height, start_angle, local_sweep); |
- start_angle += local_sweep; |
- } while (!done); |
-#endif |
-} |
-void CFX_PathGenerator::AddPie(FX_FLOAT x, |
- FX_FLOAT y, |
- FX_FLOAT width, |
- FX_FLOAT height, |
- FX_FLOAT start_angle, |
- FX_FLOAT sweep_angle) { |
- if (sweep_angle == 0) { |
- int old_count = m_pPathData->GetPointCount(); |
- m_pPathData->AddPointCount(2); |
- m_pPathData->SetPoint(old_count, x, y, FXPT_MOVETO); |
- m_pPathData->SetPoint( |
- old_count + 1, x + FXSYS_Mul(width, FXSYS_cos(start_angle)), |
- y + FXSYS_Mul(height, FXSYS_sin(start_angle)), FXPT_LINETO); |
- return; |
- } |
- AddArc(x, y, width, height, start_angle, sweep_angle); |
- m_pPathData->AddPointCount(1); |
- m_pPathData->SetPoint(m_pPathData->GetPointCount() - 1, x, y, |
- FXPT_LINETO | FXPT_CLOSEFIGURE); |
-} |
+// 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 "pre.h" |
+#include "fx_path_generator.h" |
+CFX_PathGenerator::CFX_PathGenerator() { |
+ m_pPathData = NULL; |
+} |
+void CFX_PathGenerator::Create() { |
+ m_pPathData = new CFX_PathData; |
+} |
+CFX_PathGenerator::~CFX_PathGenerator() { |
+ if (m_pPathData) { |
+ delete m_pPathData; |
+ m_pPathData = NULL; |
+ } |
+} |
+void CFX_PathGenerator::AddPathData(CFX_PathData* pPathData) { |
+ if (pPathData && pPathData->GetPointCount() > 0) { |
+ int nCount = pPathData->GetPointCount(); |
+ FX_PATHPOINT* pPoints = pPathData->GetPoints(); |
+ AddPathData(pPoints, nCount); |
+ } |
+} |
+void CFX_PathGenerator::AddPathData(FX_PATHPOINT* pPoints, int nCount) { |
+ if (pPoints && nCount > 0) { |
+ int nOldCount = m_pPathData->GetPointCount(); |
+ m_pPathData->AddPointCount(nCount); |
+ FX_PATHPOINT* pDstPoints = m_pPathData->GetPoints(); |
+ FXSYS_memcpy(pDstPoints + nOldCount, pPoints, |
+ sizeof(FX_PATHPOINT) * nCount); |
+ } |
+} |
+void CFX_PathGenerator::MoveTo(FX_FLOAT x, FX_FLOAT y) { |
+ m_pPathData->AddPointCount(1); |
+ m_pPathData->SetPoint(m_pPathData->GetPointCount() - 1, x, y, FXPT_MOVETO); |
+} |
+void CFX_PathGenerator::LineTo(FX_FLOAT x, FX_FLOAT y) { |
+ m_pPathData->AddPointCount(1); |
+ m_pPathData->SetPoint(m_pPathData->GetPointCount() - 1, x, y, FXPT_LINETO); |
+} |
+void CFX_PathGenerator::BezierTo(FX_FLOAT ctrl_x1, |
+ FX_FLOAT ctrl_y1, |
+ FX_FLOAT ctrl_x2, |
+ FX_FLOAT ctrl_y2, |
+ FX_FLOAT to_x, |
+ FX_FLOAT to_y) { |
+ int old_count = m_pPathData->GetPointCount(); |
+ m_pPathData->AddPointCount(3); |
+ m_pPathData->SetPoint(old_count, ctrl_x1, ctrl_y1, FXPT_BEZIERTO); |
+ m_pPathData->SetPoint(old_count + 1, ctrl_x2, ctrl_y2, FXPT_BEZIERTO); |
+ m_pPathData->SetPoint(old_count + 2, to_x, to_y, FXPT_BEZIERTO); |
+} |
+void CFX_PathGenerator::Close() { |
+ if (m_pPathData->GetPointCount() > 0) { |
+ int index = m_pPathData->GetPointCount() - 1; |
+ FX_PATHPOINT* pPoints = m_pPathData->GetPoints(); |
+ pPoints[index].m_Flag |= FXPT_CLOSEFIGURE; |
+ } |
+} |
+void CFX_PathGenerator::AddLine(FX_FLOAT x1, |
+ FX_FLOAT y1, |
+ FX_FLOAT x2, |
+ FX_FLOAT y2) { |
+ int old_count = m_pPathData->GetPointCount(); |
+ m_pPathData->AddPointCount(2); |
+ m_pPathData->SetPoint(old_count, x1, y1, FXPT_MOVETO); |
+ m_pPathData->SetPoint(old_count + 1, x2, y2, FXPT_LINETO); |
+} |
+void CFX_PathGenerator::AddBezier(FX_FLOAT start_x, |
+ FX_FLOAT start_y, |
+ FX_FLOAT ctrl_x1, |
+ FX_FLOAT ctrl_y1, |
+ FX_FLOAT ctrl_x2, |
+ FX_FLOAT ctrl_y2, |
+ FX_FLOAT end_x, |
+ FX_FLOAT end_y) { |
+ int old_count = m_pPathData->GetPointCount(); |
+ m_pPathData->AddPointCount(4); |
+ m_pPathData->SetPoint(old_count, start_x, start_y, FXPT_MOVETO); |
+ m_pPathData->SetPoint(old_count + 1, ctrl_x1, ctrl_y1, FXPT_BEZIERTO); |
+ m_pPathData->SetPoint(old_count + 2, ctrl_x2, ctrl_y2, FXPT_BEZIERTO); |
+ m_pPathData->SetPoint(old_count + 3, end_x, end_y, FXPT_BEZIERTO); |
+} |
+void CFX_PathGenerator::AddRectangle(FX_FLOAT x1, |
+ FX_FLOAT y1, |
+ FX_FLOAT x2, |
+ FX_FLOAT y2) { |
+ m_pPathData->AppendRect(x1, y1, x2, y2); |
+} |
+void CFX_PathGenerator::AddEllipse(FX_FLOAT x, |
+ FX_FLOAT y, |
+ FX_FLOAT width, |
+ FX_FLOAT height) { |
+#if 0 |
+ FX_FIXFLOAT16 k; |
+ k = fix16_to_8(fixsqrt_32_to_16(fixmul_8_8_to_32(width, width) + fixmul_8_8_to_32(height, height)) / 2); |
+ int old_count = m_pPathData->GetPointCount(); |
+ m_pPathData->AddPointCount(7); |
+ m_pPathData->SetPoint(old_count, x, y - height / 2, FXPT_MOVETO); |
+ m_pPathData->SetPoint(old_count + 1, x + k, y - height / 2, FXPT_BEZIERTO); |
+ m_pPathData->SetPoint(old_count + 2, x + k, y + height / 2, FXPT_BEZIERTO); |
+ m_pPathData->SetPoint(old_count + 3, x, y + height / 2, FXPT_BEZIERTO); |
+ m_pPathData->SetPoint(old_count + 4, x - k, y + height / 2, FXPT_BEZIERTO); |
+ m_pPathData->SetPoint(old_count + 5, x - k, y - height / 2, FXPT_BEZIERTO); |
+ m_pPathData->SetPoint(old_count + 6, x, y - height / 2, FXPT_BEZIERTO); |
+#else |
+ AddArc(x, y, width, height, 0, FX_PI * 2); |
+#endif |
+} |
+void CFX_PathGenerator::ArcTo(FX_FLOAT x, |
+ FX_FLOAT y, |
+ FX_FLOAT width, |
+ FX_FLOAT height, |
+ FX_FLOAT start_angle, |
+ FX_FLOAT sweep_angle) { |
+ FX_FLOAT x0 = FXSYS_cos(sweep_angle / 2); |
+ FX_FLOAT y0 = FXSYS_sin(sweep_angle / 2); |
+ FX_FLOAT tx = FXSYS_Div((1.0f - x0) * 4, 3 * 1.0f); |
+ FX_FLOAT ty = y0 - FXSYS_Div(FXSYS_Mul(tx, x0), y0); |
+ FX_FLOAT px[3], py[3]; |
+ px[0] = x0 + tx; |
+ py[0] = -ty; |
+ px[1] = x0 + tx; |
+ py[1] = ty; |
+ FX_FLOAT sn = FXSYS_sin(start_angle + sweep_angle / 2); |
+ FX_FLOAT cs = FXSYS_cos(start_angle + sweep_angle / 2); |
+ int old_count = m_pPathData->GetPointCount(); |
+ m_pPathData->AddPointCount(3); |
+ FX_FLOAT bezier_x, bezier_y; |
+ bezier_x = x + FXSYS_Mul(width, FXSYS_Mul(px[0], cs) - FXSYS_Mul(py[0], sn)); |
+ bezier_y = y + FXSYS_Mul(height, FXSYS_Mul(px[0], sn) + FXSYS_Mul(py[0], cs)); |
+ m_pPathData->SetPoint(old_count, bezier_x, bezier_y, FXPT_BEZIERTO); |
+ bezier_x = x + FXSYS_Mul(width, FXSYS_Mul(px[1], cs) - FXSYS_Mul(py[1], sn)); |
+ bezier_y = y + FXSYS_Mul(height, FXSYS_Mul(px[1], sn) + FXSYS_Mul(py[1], cs)); |
+ m_pPathData->SetPoint(old_count + 1, bezier_x, bezier_y, FXPT_BEZIERTO); |
+ bezier_x = x + FXSYS_Mul(width, FXSYS_cos(start_angle + sweep_angle)), |
+ bezier_y = y + FXSYS_Mul(height, FXSYS_sin(start_angle + sweep_angle)); |
+ m_pPathData->SetPoint(old_count + 2, bezier_x, bezier_y, FXPT_BEZIERTO); |
+} |
+void CFX_PathGenerator::AddArc(FX_FLOAT x, |
+ FX_FLOAT y, |
+ FX_FLOAT width, |
+ FX_FLOAT height, |
+ FX_FLOAT start_angle, |
+ FX_FLOAT sweep_angle) { |
+#if 0 |
+ FX_FIXFLOAT32 sweep = sweep_angle; |
+ while (sweep > FIXFLOAT32_PI * 2) { |
+ sweep -= FIXFLOAT32_PI * 2; |
+ } |
+ if (sweep == 0) { |
+ return; |
+ } |
+ m_pPathData->AddPointCount(1); |
+ m_pPathData->SetPoint(m_pPathData->GetPointCount() - 1, |
+ x + fixmul_8_32_to_8(width, fixcos(start_angle)), |
+ y + fixmul_8_32_to_8(height, fixsin(start_angle)), FXPT_MOVETO); |
+ FX_FIXFLOAT32 angle1 = 0, angle2; |
+ FX_BOOL bDone = FALSE; |
+ do { |
+ angle2 = angle1 + FIXFLOAT32_PI / 2; |
+ if (angle2 >= sweep) { |
+ angle2 = sweep; |
+ bDone = TRUE; |
+ } |
+ ArcTo(x, y, width, height, start_angle + angle1, angle2 - angle1); |
+ angle1 = angle2; |
+ } while (!bDone); |
+#else |
+ if (sweep_angle == 0) { |
+ return; |
+ } |
+ static const FX_FLOAT bezier_arc_angle_epsilon = (FX_FLOAT)(0.01f); |
+ while (start_angle > FX_PI * 2) { |
+ start_angle -= FX_PI * 2; |
+ } |
+ while (start_angle < 0) { |
+ start_angle += FX_PI * 2; |
+ } |
+ if (sweep_angle >= FX_PI * 2) { |
+ sweep_angle = FX_PI * 2; |
+ } |
+ if (sweep_angle <= -FX_PI * 2) { |
+ sweep_angle = -FX_PI * 2; |
+ } |
+ m_pPathData->AddPointCount(1); |
+ m_pPathData->SetPoint(m_pPathData->GetPointCount() - 1, |
+ x + FXSYS_Mul(width, FXSYS_cos(start_angle)), |
+ y + FXSYS_Mul(height, FXSYS_sin(start_angle)), |
+ FXPT_MOVETO); |
+ FX_FLOAT total_sweep = 0, local_sweep = 0, prev_sweep = 0; |
+ FX_BOOL done = FALSE; |
+ do { |
+ if (sweep_angle < 0) { |
+ prev_sweep = total_sweep; |
+ local_sweep = -FX_PI / 2; |
+ total_sweep -= FX_PI / 2; |
+ if (total_sweep <= sweep_angle + bezier_arc_angle_epsilon) { |
+ local_sweep = sweep_angle - prev_sweep; |
+ done = TRUE; |
+ } |
+ } else { |
+ prev_sweep = total_sweep; |
+ local_sweep = FX_PI / 2; |
+ total_sweep += FX_PI / 2; |
+ if (total_sweep >= sweep_angle - bezier_arc_angle_epsilon) { |
+ local_sweep = sweep_angle - prev_sweep; |
+ done = TRUE; |
+ } |
+ } |
+ ArcTo(x, y, width, height, start_angle, local_sweep); |
+ start_angle += local_sweep; |
+ } while (!done); |
+#endif |
+} |
+void CFX_PathGenerator::AddPie(FX_FLOAT x, |
+ FX_FLOAT y, |
+ FX_FLOAT width, |
+ FX_FLOAT height, |
+ FX_FLOAT start_angle, |
+ FX_FLOAT sweep_angle) { |
+ if (sweep_angle == 0) { |
+ int old_count = m_pPathData->GetPointCount(); |
+ m_pPathData->AddPointCount(2); |
+ m_pPathData->SetPoint(old_count, x, y, FXPT_MOVETO); |
+ m_pPathData->SetPoint( |
+ old_count + 1, x + FXSYS_Mul(width, FXSYS_cos(start_angle)), |
+ y + FXSYS_Mul(height, FXSYS_sin(start_angle)), FXPT_LINETO); |
+ return; |
+ } |
+ AddArc(x, y, width, height, start_angle, sweep_angle); |
+ m_pPathData->AddPointCount(1); |
+ m_pPathData->SetPoint(m_pPathData->GetPointCount() - 1, x, y, |
+ FXPT_LINETO | FXPT_CLOSEFIGURE); |
+} |