diff options
Diffstat (limited to 'xfa/src/fxgraphics/src/fx_path_generator.cpp')
| -rw-r--r-- | xfa/src/fxgraphics/src/fx_path_generator.cpp | 355 |
1 files changed, 186 insertions, 169 deletions
diff --git a/xfa/src/fxgraphics/src/fx_path_generator.cpp b/xfa/src/fxgraphics/src/fx_path_generator.cpp index da9d3df063..3107febdbd 100644 --- a/xfa/src/fxgraphics/src/fx_path_generator.cpp +++ b/xfa/src/fxgraphics/src/fx_path_generator.cpp @@ -6,89 +6,95 @@ #include "pre.h"
#include "fx_path_generator.h"
-CFX_PathGenerator::CFX_PathGenerator()
-{
- m_pPathData = NULL;
-}
-void CFX_PathGenerator::Create()
-{
- m_pPathData = FX_NEW CFX_PathData;
+CFX_PathGenerator::CFX_PathGenerator() {
+ m_pPathData = NULL;
}
-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::Create() {
+ m_pPathData = FX_NEW CFX_PathData;
}
-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)
-{
+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);
@@ -102,39 +108,45 @@ void CFX_PathGenerator::AddEllipse(FX_FLOAT x, FX_FLOAT y, FX_FLOAT width, FX_FL 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);
+ 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)
-{
+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) {
@@ -159,64 +171,69 @@ void CFX_PathGenerator::AddArc(FX_FLOAT x, FX_FLOAT y, FX_FLOAT width, FX_FLOAT 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;
+ 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;
+ }
}
- 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);
+ 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);
+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);
}
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