| 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);
|
| +}
|
|
|