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path: root/xfa/fxgraphics/cfx_path.cpp
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Diffstat (limited to 'xfa/fxgraphics/cfx_path.cpp')
-rw-r--r--xfa/fxgraphics/cfx_path.cpp267
1 files changed, 128 insertions, 139 deletions
diff --git a/xfa/fxgraphics/cfx_path.cpp b/xfa/fxgraphics/cfx_path.cpp
index 3072df2475..d56eb13f67 100644
--- a/xfa/fxgraphics/cfx_path.cpp
+++ b/xfa/fxgraphics/cfx_path.cpp
@@ -8,155 +8,144 @@
#include "core/fxge/cfx_pathdata.h"
#include "third_party/base/ptr_util.h"
-#include "xfa/fxgraphics/cfx_path_generator.h"
CFX_Path::CFX_Path() {}
-FWL_Error CFX_Path::Create() {
- if (m_generator)
- return FWL_Error::PropertyInvalid;
-
- m_generator = pdfium::MakeUnique<CFX_PathGenerator>();
- return FWL_Error::Succeeded;
-}
-
CFX_Path::~CFX_Path() {}
-FWL_Error CFX_Path::MoveTo(const CFX_PointF& point) {
- if (!m_generator)
- return FWL_Error::PropertyInvalid;
- m_generator->MoveTo(point);
- return FWL_Error::Succeeded;
-}
-
-FWL_Error CFX_Path::LineTo(const CFX_PointF& point) {
- if (!m_generator)
- return FWL_Error::PropertyInvalid;
- m_generator->LineTo(point);
- return FWL_Error::Succeeded;
-}
-
-FWL_Error CFX_Path::BezierTo(const CFX_PointF& c1,
- const CFX_PointF& c2,
- const CFX_PointF& to) {
- if (!m_generator)
- return FWL_Error::PropertyInvalid;
- m_generator->BezierTo(c1, c2, to);
- return FWL_Error::Succeeded;
-}
-
-FWL_Error CFX_Path::ArcTo(const CFX_PointF& pos,
- const CFX_SizeF& size,
- FX_FLOAT startAngle,
- FX_FLOAT sweepAngle) {
- if (!m_generator)
- return FWL_Error::PropertyInvalid;
- CFX_SizeF newSize = size / 2.0f;
- m_generator->ArcTo(CFX_PointF(pos.x + newSize.width, pos.y + newSize.height),
- newSize, startAngle, sweepAngle);
- return FWL_Error::Succeeded;
-}
-
-FWL_Error CFX_Path::Close() {
- if (!m_generator)
- return FWL_Error::PropertyInvalid;
- m_generator->Close();
- return FWL_Error::Succeeded;
-}
-
-FWL_Error CFX_Path::AddLine(const CFX_PointF& p1, const CFX_PointF& p2) {
- if (!m_generator)
- return FWL_Error::PropertyInvalid;
- m_generator->AddLine(p1, p2);
- return FWL_Error::Succeeded;
+void CFX_Path::Clear() {
+ data_.Clear();
}
-FWL_Error CFX_Path::AddBezier(const CFX_PointF& p1,
- const CFX_PointF& c1,
- const CFX_PointF& c2,
- const CFX_PointF& p2) {
- if (!m_generator)
- return FWL_Error::PropertyInvalid;
- m_generator->AddBezier(p1, c1, c2, p2);
- return FWL_Error::Succeeded;
+void CFX_Path::Close() {
+ data_.ClosePath();
}
-FWL_Error CFX_Path::AddRectangle(FX_FLOAT left,
- FX_FLOAT top,
- FX_FLOAT width,
- FX_FLOAT height) {
- if (!m_generator)
- return FWL_Error::PropertyInvalid;
- m_generator->AddRectangle(left, top, left + width, top + height);
- return FWL_Error::Succeeded;
+void CFX_Path::MoveTo(const CFX_PointF& point) {
+ data_.AppendPoint(point, FXPT_TYPE::MoveTo, false);
}
-FWL_Error CFX_Path::AddEllipse(const CFX_PointF& pos, const CFX_SizeF& size) {
- if (!m_generator)
- return FWL_Error::PropertyInvalid;
- CFX_SizeF newSize = size / 2.0f;
- m_generator->AddEllipse(
- CFX_PointF(pos.x + newSize.width, pos.y + newSize.height), newSize);
- return FWL_Error::Succeeded;
-}
-
-FWL_Error CFX_Path::AddEllipse(const CFX_RectF& rect) {
- if (!m_generator)
- return FWL_Error::PropertyInvalid;
- m_generator->AddEllipse(
- CFX_PointF(rect.left + rect.Width() / 2, rect.top + rect.Height() / 2),
- CFX_SizeF(rect.Width() / 2, rect.Height() / 2));
- return FWL_Error::Succeeded;
-}
-
-FWL_Error CFX_Path::AddArc(const CFX_PointF& pos,
- const CFX_SizeF& size,
- FX_FLOAT startAngle,
- FX_FLOAT sweepAngle) {
- if (!m_generator)
- return FWL_Error::PropertyInvalid;
- CFX_SizeF newSize = size / 2;
- m_generator->AddArc(CFX_PointF(pos.x + newSize.width, pos.y + newSize.height),
- newSize, startAngle, sweepAngle);
- return FWL_Error::Succeeded;
-}
-
-FWL_Error CFX_Path::AddPie(const CFX_PointF& pos,
- const CFX_SizeF& size,
- FX_FLOAT startAngle,
- FX_FLOAT sweepAngle) {
- if (!m_generator)
- return FWL_Error::PropertyInvalid;
- CFX_SizeF newSize = size / 2;
- m_generator->AddPie(CFX_PointF(pos.x + newSize.width, pos.y + newSize.height),
- newSize, startAngle, sweepAngle);
- return FWL_Error::Succeeded;
-}
-
-FWL_Error CFX_Path::AddSubpath(CFX_Path* path) {
- if (!m_generator)
- return FWL_Error::PropertyInvalid;
- m_generator->AddPathData(path->GetPathData());
- return FWL_Error::Succeeded;
-}
-
-FWL_Error CFX_Path::Clear() {
- if (!m_generator)
- return FWL_Error::PropertyInvalid;
- m_generator->GetPathData()->Clear();
- return FWL_Error::Succeeded;
-}
-
-bool CFX_Path::IsEmpty() const {
- if (!m_generator)
- return false;
- if (m_generator->GetPathData()->GetPoints().empty())
- return true;
- return false;
-}
+void CFX_Path::LineTo(const CFX_PointF& point) {
+ data_.AppendPoint(point, FXPT_TYPE::LineTo, false);
+}
+
+void CFX_Path::BezierTo(const CFX_PointF& c1,
+ const CFX_PointF& c2,
+ const CFX_PointF& to) {
+ data_.AppendPoint(c1, FXPT_TYPE::BezierTo, false);
+ data_.AppendPoint(c2, FXPT_TYPE::BezierTo, false);
+ data_.AppendPoint(to, FXPT_TYPE::BezierTo, false);
+}
+
+void CFX_Path::ArcTo(const CFX_PointF& pos,
+ const CFX_SizeF& size,
+ FX_FLOAT start_angle,
+ FX_FLOAT sweep_angle) {
+ CFX_SizeF new_size = size / 2.0f;
+ ArcToInternal(CFX_PointF(pos.x + new_size.width, pos.y + new_size.height),
+ new_size, start_angle, sweep_angle);
+}
-CFX_PathData* CFX_Path::GetPathData() const {
- if (!m_generator)
- return nullptr;
- return m_generator->GetPathData();
+void CFX_Path::ArcToInternal(const CFX_PointF& pos,
+ const CFX_SizeF& size,
+ 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 = ((1.0f - x0) * 4) / (3 * 1.0f);
+ FX_FLOAT ty = y0 - ((tx * x0) / y0);
+
+ CFX_PointF points[] = {CFX_PointF(x0 + tx, -ty), CFX_PointF(x0 + tx, ty)};
+ FX_FLOAT sn = FXSYS_sin(start_angle + sweep_angle / 2);
+ FX_FLOAT cs = FXSYS_cos(start_angle + sweep_angle / 2);
+
+ CFX_PointF bezier;
+ bezier.x = pos.x + (size.width * ((points[0].x * cs) - (points[0].y * sn)));
+ bezier.y = pos.y + (size.height * ((points[0].x * sn) + (points[0].y * cs)));
+ data_.AppendPoint(bezier, FXPT_TYPE::BezierTo, false);
+
+ bezier.x = pos.x + (size.width * ((points[1].x * cs) - (points[1].y * sn)));
+ bezier.y = pos.y + (size.height * ((points[1].x * sn) + (points[1].y * cs)));
+ data_.AppendPoint(bezier, FXPT_TYPE::BezierTo, false);
+
+ bezier.x = pos.x + (size.width * FXSYS_cos(start_angle + sweep_angle));
+ bezier.y = pos.y + (size.height * FXSYS_sin(start_angle + sweep_angle));
+ data_.AppendPoint(bezier, FXPT_TYPE::BezierTo, false);
+}
+
+void CFX_Path::AddLine(const CFX_PointF& p1, const CFX_PointF& p2) {
+ data_.AppendPoint(p1, FXPT_TYPE::MoveTo, false);
+ data_.AppendPoint(p2, FXPT_TYPE::LineTo, false);
+}
+
+void CFX_Path::AddRectangle(FX_FLOAT left,
+ FX_FLOAT top,
+ FX_FLOAT width,
+ FX_FLOAT height) {
+ data_.AppendRect(left, top, left + width, top + height);
+}
+
+void CFX_Path::AddEllipse(const CFX_RectF& rect) {
+ AddArc(rect.TopLeft(), rect.Size(), 0, FX_PI * 2);
+}
+
+void CFX_Path::AddArc(const CFX_PointF& original_pos,
+ const CFX_SizeF& original_size,
+ FX_FLOAT start_angle,
+ FX_FLOAT sweep_angle) {
+ if (sweep_angle == 0)
+ return;
+
+ const FX_FLOAT bezier_arc_angle_epsilon = 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;
+
+ CFX_SizeF size = original_size / 2;
+ CFX_PointF pos(original_pos.x + size.width, original_pos.y + size.height);
+ data_.AppendPoint(pos + CFX_PointF(size.width * FXSYS_cos(start_angle),
+ size.height * FXSYS_sin(start_angle)),
+ FXPT_TYPE::MoveTo, false);
+
+ FX_FLOAT total_sweep = 0;
+ FX_FLOAT local_sweep = 0;
+ FX_FLOAT prev_sweep = 0;
+ 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;
+ }
+ }
+
+ ArcToInternal(pos, size, start_angle, local_sweep);
+ start_angle += local_sweep;
+ } while (!done);
+}
+
+void CFX_Path::AddSubpath(CFX_Path* path) {
+ if (!path)
+ return;
+ data_.Append(&path->data_, nullptr);
+}
+
+void CFX_Path::TransformBy(const CFX_Matrix& mt) {
+ data_.Transform(&mt);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-07 15:40:38 +0000