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authorDan Sinclair <dsinclair@chromium.org>2018-01-17 18:40:41 +0000
committerChromium commit bot <commit-bot@chromium.org>2018-01-17 18:40:41 +0000
commitaca769671c706607ff29882c46bac77baa449acb (patch)
tree8c312c5073e2b5c7759d6c3467ee985b32bb58c0 /xfa/fxfa/parser/cxfa_rectangle.cpp
parentb73a96938d0fc932a9d498359c98f4cf6ef34160 (diff)
downloadpdfium-aca769671c706607ff29882c46bac77baa449acb.tar.xz
Move rectangle drawing code to CXFA_Rectangle
This CL moves code related to drawing rectangles to the CXFA_Rectangle class. This also turns CXFA_Border into a CXFA_Rectangle to share the drawing code. Change-Id: I91e2e73b33ecbcda477cf953cf7609310a01fcd4 Reviewed-on: https://pdfium-review.googlesource.com/23110 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
Diffstat (limited to 'xfa/fxfa/parser/cxfa_rectangle.cpp')
-rw-r--r--xfa/fxfa/parser/cxfa_rectangle.cpp435
1 files changed, 435 insertions, 0 deletions
diff --git a/xfa/fxfa/parser/cxfa_rectangle.cpp b/xfa/fxfa/parser/cxfa_rectangle.cpp
index 01a204d149..861cf443a7 100644
--- a/xfa/fxfa/parser/cxfa_rectangle.cpp
+++ b/xfa/fxfa/parser/cxfa_rectangle.cpp
@@ -6,8 +6,12 @@
#include "xfa/fxfa/parser/cxfa_rectangle.h"
+#include <utility>
+
#include "fxjs/xfa/cjx_rectangle.h"
#include "third_party/base/ptr_util.h"
+#include "xfa/fxfa/parser/cxfa_corner.h"
+#include "xfa/fxfa/parser/cxfa_stroke.h"
namespace {
@@ -38,4 +42,435 @@ CXFA_Rectangle::CXFA_Rectangle(CXFA_Document* doc, XFA_PacketType packet)
kName,
pdfium::MakeUnique<CJX_Rectangle>(this)) {}
+CXFA_Rectangle::CXFA_Rectangle(CXFA_Document* pDoc,
+ XFA_PacketType ePacket,
+ uint32_t validPackets,
+ XFA_ObjectType oType,
+ XFA_Element eType,
+ const PropertyData* properties,
+ const AttributeData* attributes,
+ const WideStringView& elementName,
+ std::unique_ptr<CJX_Object> js_node)
+ : CXFA_Box(pDoc,
+ ePacket,
+ validPackets,
+ oType,
+ eType,
+ properties,
+ attributes,
+ elementName,
+ std::move(js_node)) {}
+
CXFA_Rectangle::~CXFA_Rectangle() {}
+
+void CXFA_Rectangle::Draw(const std::vector<CXFA_Stroke*>& strokes,
+ CXFA_Graphics* pGS,
+ CFX_RectF rtWidget,
+ const CFX_Matrix& matrix) {
+ bool bVisible = false;
+ for (int32_t j = 0; j < 4; j++) {
+ if (strokes[j * 2 + 1]->IsVisible()) {
+ bVisible = true;
+ break;
+ }
+ }
+ if (!bVisible)
+ return;
+
+ for (int32_t i = 1; i < 8; i += 2) {
+ float fThickness = std::fmax(0.0, strokes[i]->GetThickness());
+ float fHalf = fThickness / 2;
+ XFA_AttributeEnum iHand = GetHand();
+ switch (i) {
+ case 1:
+ if (iHand == XFA_AttributeEnum::Left) {
+ rtWidget.top -= fHalf;
+ rtWidget.height += fHalf;
+ } else if (iHand == XFA_AttributeEnum::Right) {
+ rtWidget.top += fHalf;
+ rtWidget.height -= fHalf;
+ }
+ break;
+ case 3:
+ if (iHand == XFA_AttributeEnum::Left) {
+ rtWidget.width += fHalf;
+ } else if (iHand == XFA_AttributeEnum::Right) {
+ rtWidget.width -= fHalf;
+ }
+ break;
+ case 5:
+ if (iHand == XFA_AttributeEnum::Left) {
+ rtWidget.height += fHalf;
+ } else if (iHand == XFA_AttributeEnum::Right) {
+ rtWidget.height -= fHalf;
+ }
+ break;
+ case 7:
+ if (iHand == XFA_AttributeEnum::Left) {
+ rtWidget.left -= fHalf;
+ rtWidget.width += fHalf;
+ } else if (iHand == XFA_AttributeEnum::Right) {
+ rtWidget.left += fHalf;
+ rtWidget.width -= fHalf;
+ }
+ break;
+ }
+ }
+ Stroke(strokes, pGS, rtWidget, matrix);
+}
+
+void CXFA_Rectangle::Stroke(const std::vector<CXFA_Stroke*>& strokes,
+ CXFA_Graphics* pGS,
+ CFX_RectF rtWidget,
+ const CFX_Matrix& matrix) {
+ bool bVisible;
+ float fThickness;
+ XFA_AttributeEnum i3DType;
+ std::tie(i3DType, bVisible, fThickness) = Get3DStyle();
+ if (i3DType != XFA_AttributeEnum::Unknown) {
+ if (!bVisible || fThickness < 0.001f)
+ return;
+
+ switch (i3DType) {
+ case XFA_AttributeEnum::Lowered:
+ StrokeLowered(pGS, rtWidget, fThickness, matrix);
+ break;
+ case XFA_AttributeEnum::Raised:
+ StrokeRaised(pGS, rtWidget, fThickness, matrix);
+ break;
+ case XFA_AttributeEnum::Etched:
+ StrokeEtched(pGS, rtWidget, fThickness, matrix);
+ break;
+ case XFA_AttributeEnum::Embossed:
+ StrokeEmbossed(pGS, rtWidget, fThickness, matrix);
+ break;
+ default:
+ NOTREACHED();
+ break;
+ }
+ return;
+ }
+
+ bool bClose = false;
+ bool bSameStyles = true;
+ CXFA_Stroke* stroke1 = strokes[0];
+ for (int32_t i = 1; i < 8; i++) {
+ CXFA_Stroke* stroke2 = strokes[i];
+ if (!stroke1->SameStyles(stroke2, 0)) {
+ bSameStyles = false;
+ break;
+ }
+ stroke1 = stroke2;
+ }
+ if (bSameStyles) {
+ stroke1 = strokes[0];
+ bClose = true;
+ for (int32_t i = 2; i < 8; i += 2) {
+ CXFA_Stroke* stroke2 = strokes[i];
+ if (!stroke1->SameStyles(stroke2, XFA_STROKE_SAMESTYLE_NoPresence |
+ XFA_STROKE_SAMESTYLE_Corner)) {
+ bSameStyles = false;
+ break;
+ }
+ stroke1 = stroke2;
+ }
+ if (bSameStyles) {
+ stroke1 = strokes[0];
+ if (stroke1->IsInverted())
+ bSameStyles = false;
+ if (stroke1->GetJoinType() != XFA_AttributeEnum::Square)
+ bSameStyles = false;
+ }
+ }
+
+ bool bStart = true;
+ CXFA_GEPath path;
+ for (int32_t i = 0; i < 8; i++) {
+ CXFA_Stroke* stroke = strokes[i];
+ if ((i % 1) == 0 && stroke->GetRadius() < 0) {
+ bool bEmpty = path.IsEmpty();
+ if (!bEmpty) {
+ if (stroke)
+ stroke->Stroke(&path, pGS, matrix);
+ path.Clear();
+ }
+ bStart = true;
+ continue;
+ }
+ GetPath(strokes, rtWidget, path, i, bStart, !bSameStyles);
+
+ bStart = !stroke->SameStyles(strokes[(i + 1) % 8], 0);
+ if (bStart) {
+ if (stroke)
+ stroke->Stroke(&path, pGS, matrix);
+ path.Clear();
+ }
+ }
+ bool bEmpty = path.IsEmpty();
+ if (!bEmpty) {
+ if (bClose) {
+ path.Close();
+ }
+ if (strokes[7])
+ strokes[7]->Stroke(&path, pGS, matrix);
+ }
+}
+
+void CXFA_Rectangle::StrokeRect(CXFA_Graphics* pGraphic,
+ const CFX_RectF& rt,
+ float fLineWidth,
+ const CFX_Matrix& matrix,
+ FX_ARGB argbTopLeft,
+ FX_ARGB argbBottomRight) {
+ float fBottom = rt.bottom();
+ float fRight = rt.right();
+ CXFA_GEPath pathLT;
+ pathLT.MoveTo(CFX_PointF(rt.left, fBottom));
+ pathLT.LineTo(CFX_PointF(rt.left, rt.top));
+ pathLT.LineTo(CFX_PointF(fRight, rt.top));
+ pathLT.LineTo(CFX_PointF(fRight - fLineWidth, rt.top + fLineWidth));
+ pathLT.LineTo(CFX_PointF(rt.left + fLineWidth, rt.top + fLineWidth));
+ pathLT.LineTo(CFX_PointF(rt.left + fLineWidth, fBottom - fLineWidth));
+ pathLT.LineTo(CFX_PointF(rt.left, fBottom));
+ pGraphic->SetFillColor(CXFA_GEColor(argbTopLeft));
+ pGraphic->FillPath(&pathLT, FXFILL_WINDING, &matrix);
+
+ CXFA_GEPath pathRB;
+ pathRB.MoveTo(CFX_PointF(fRight, rt.top));
+ pathRB.LineTo(CFX_PointF(fRight, fBottom));
+ pathRB.LineTo(CFX_PointF(rt.left, fBottom));
+ pathRB.LineTo(CFX_PointF(rt.left + fLineWidth, fBottom - fLineWidth));
+ pathRB.LineTo(CFX_PointF(fRight - fLineWidth, fBottom - fLineWidth));
+ pathRB.LineTo(CFX_PointF(fRight - fLineWidth, rt.top + fLineWidth));
+ pathRB.LineTo(CFX_PointF(fRight, rt.top));
+ pGraphic->SetFillColor(CXFA_GEColor(argbBottomRight));
+ pGraphic->FillPath(&pathRB, FXFILL_WINDING, &matrix);
+}
+
+void CXFA_Rectangle::StrokeLowered(CXFA_Graphics* pGS,
+ CFX_RectF rt,
+ float fThickness,
+ const CFX_Matrix& matrix) {
+ float fHalfWidth = fThickness / 2.0f;
+ CFX_RectF rtInner(rt);
+ rtInner.Deflate(fHalfWidth, fHalfWidth);
+
+ CXFA_GEPath path;
+ path.AddRectangle(rt.left, rt.top, rt.width, rt.height);
+ path.AddRectangle(rtInner.left, rtInner.top, rtInner.width, rtInner.height);
+ pGS->SetFillColor(CXFA_GEColor(0xFF000000));
+ pGS->FillPath(&path, FXFILL_ALTERNATE, &matrix);
+
+ StrokeRect(pGS, rtInner, fHalfWidth, matrix, 0xFF808080, 0xFFC0C0C0);
+}
+
+void CXFA_Rectangle::StrokeRaised(CXFA_Graphics* pGS,
+ CFX_RectF rt,
+ float fThickness,
+ const CFX_Matrix& matrix) {
+ float fHalfWidth = fThickness / 2.0f;
+ CFX_RectF rtInner(rt);
+ rtInner.Deflate(fHalfWidth, fHalfWidth);
+
+ CXFA_GEPath path;
+ path.AddRectangle(rt.left, rt.top, rt.width, rt.height);
+ path.AddRectangle(rtInner.left, rtInner.top, rtInner.width, rtInner.height);
+ pGS->SetFillColor(CXFA_GEColor(0xFF000000));
+ pGS->FillPath(&path, FXFILL_ALTERNATE, &matrix);
+
+ StrokeRect(pGS, rtInner, fHalfWidth, matrix, 0xFFFFFFFF, 0xFF808080);
+}
+
+void CXFA_Rectangle::StrokeEtched(CXFA_Graphics* pGS,
+ CFX_RectF rt,
+ float fThickness,
+ const CFX_Matrix& matrix) {
+ float fHalfWidth = fThickness / 2.0f;
+ StrokeRect(pGS, rt, fThickness, matrix, 0xFF808080, 0xFFFFFFFF);
+
+ CFX_RectF rtInner(rt);
+ rtInner.Deflate(fHalfWidth, fHalfWidth);
+ StrokeRect(pGS, rtInner, fHalfWidth, matrix, 0xFFFFFFFF, 0xFF808080);
+}
+
+void CXFA_Rectangle::StrokeEmbossed(CXFA_Graphics* pGS,
+ CFX_RectF rt,
+ float fThickness,
+ const CFX_Matrix& matrix) {
+ float fHalfWidth = fThickness / 2.0f;
+ StrokeRect(pGS, rt, fThickness, matrix, 0xFF808080, 0xFF000000);
+
+ CFX_RectF rtInner(rt);
+ rtInner.Deflate(fHalfWidth, fHalfWidth);
+ StrokeRect(pGS, rtInner, fHalfWidth, matrix, 0xFF000000, 0xFF808080);
+}
+
+void CXFA_Rectangle::GetPath(const std::vector<CXFA_Stroke*>& strokes,
+ CFX_RectF rtWidget,
+ CXFA_GEPath& path,
+ int32_t nIndex,
+ bool bStart,
+ bool bCorner) {
+ ASSERT(nIndex >= 0 && nIndex < 8);
+
+ int32_t n = (nIndex & 1) ? nIndex - 1 : nIndex;
+ auto* corner1 = static_cast<CXFA_Corner*>(strokes[n]);
+ auto* corner2 = static_cast<CXFA_Corner*>(strokes[(n + 2) % 8]);
+ float fRadius1 = bCorner ? corner1->GetRadius() : 0.0f;
+ float fRadius2 = bCorner ? corner2->GetRadius() : 0.0f;
+ bool bInverted = corner1->IsInverted();
+ float offsetY = 0.0f;
+ float offsetX = 0.0f;
+ bool bRound = corner1->GetJoinType() == XFA_AttributeEnum::Round;
+ float halfAfter = 0.0f;
+ float halfBefore = 0.0f;
+
+ CXFA_Stroke* stroke = strokes[nIndex];
+ if (stroke->IsCorner()) {
+ CXFA_Stroke* strokeBefore = strokes[(nIndex + 1 * 8 - 1) % 8];
+ CXFA_Stroke* strokeAfter = strokes[nIndex + 1];
+ if (stroke->IsInverted()) {
+ if (!stroke->SameStyles(strokeBefore, 0))
+ halfBefore = strokeBefore->GetThickness() / 2;
+ if (!stroke->SameStyles(strokeAfter, 0))
+ halfAfter = strokeAfter->GetThickness() / 2;
+ }
+ } else {
+ CXFA_Stroke* strokeBefore = strokes[(nIndex + 8 - 2) % 8];
+ CXFA_Stroke* strokeAfter = strokes[(nIndex + 2) % 8];
+ if (!bRound && !bInverted) {
+ halfBefore = strokeBefore->GetThickness() / 2;
+ halfAfter = strokeAfter->GetThickness() / 2;
+ }
+ }
+
+ float offsetEX = 0.0f;
+ float offsetEY = 0.0f;
+ float sx = 0.0f;
+ float sy = 0.0f;
+ float vx = 1.0f;
+ float vy = 1.0f;
+ float nx = 1.0f;
+ float ny = 1.0f;
+ CFX_PointF cpStart;
+ CFX_PointF cp1;
+ CFX_PointF cp2;
+ if (bRound)
+ sy = FX_PI / 2;
+
+ switch (nIndex) {
+ case 0:
+ case 1:
+ cp1 = rtWidget.TopLeft();
+ cp2 = rtWidget.TopRight();
+ if (nIndex == 0) {
+ cpStart.x = cp1.x - halfBefore;
+ cpStart.y = cp1.y + fRadius1, offsetY = -halfAfter;
+ } else {
+ cpStart.x = cp1.x + fRadius1 - halfBefore, cpStart.y = cp1.y,
+ offsetEX = halfAfter;
+ }
+ vx = 1, vy = 1;
+ nx = -1, ny = 0;
+ if (bRound) {
+ sx = bInverted ? FX_PI / 2 : FX_PI;
+ } else {
+ sx = 1, sy = 0;
+ }
+ break;
+ case 2:
+ case 3:
+ cp1 = rtWidget.TopRight();
+ cp2 = rtWidget.BottomRight();
+ if (nIndex == 2) {
+ cpStart.x = cp1.x - fRadius1, cpStart.y = cp1.y - halfBefore,
+ offsetX = halfAfter;
+ } else {
+ cpStart.x = cp1.x, cpStart.y = cp1.y + fRadius1 - halfBefore,
+ offsetEY = halfAfter;
+ }
+ vx = -1, vy = 1;
+ nx = 0, ny = -1;
+ if (bRound) {
+ sx = bInverted ? FX_PI : FX_PI * 3 / 2;
+ } else {
+ sx = 0, sy = 1;
+ }
+ break;
+ case 4:
+ case 5:
+ cp1 = rtWidget.BottomRight();
+ cp2 = rtWidget.BottomLeft();
+ if (nIndex == 4) {
+ cpStart.x = cp1.x + halfBefore, cpStart.y = cp1.y - fRadius1,
+ offsetY = halfAfter;
+ } else {
+ cpStart.x = cp1.x - fRadius1 + halfBefore, cpStart.y = cp1.y,
+ offsetEX = -halfAfter;
+ }
+ vx = -1, vy = -1;
+ nx = 1, ny = 0;
+ if (bRound) {
+ sx = bInverted ? FX_PI * 3 / 2 : 0;
+ } else {
+ sx = -1, sy = 0;
+ }
+ break;
+ case 6:
+ case 7:
+ cp1 = rtWidget.BottomLeft();
+ cp2 = rtWidget.TopLeft();
+ if (nIndex == 6) {
+ cpStart.x = cp1.x + fRadius1, cpStart.y = cp1.y + halfBefore,
+ offsetX = -halfAfter;
+ } else {
+ cpStart.x = cp1.x, cpStart.y = cp1.y - fRadius1 + halfBefore,
+ offsetEY = -halfAfter;
+ }
+ vx = 1;
+ vy = -1;
+ nx = 0;
+ ny = 1;
+ if (bRound) {
+ sx = bInverted ? 0 : FX_PI / 2;
+ } else {
+ sx = 0;
+ sy = -1;
+ }
+ break;
+ }
+ if (bStart) {
+ path.MoveTo(cpStart);
+ }
+ if (nIndex & 1) {
+ path.LineTo(CFX_PointF(cp2.x + fRadius2 * nx + offsetEX,
+ cp2.y + fRadius2 * ny + offsetEY));
+ return;
+ }
+ if (bRound) {
+ if (fRadius1 < 0)
+ sx -= FX_PI;
+ if (bInverted)
+ sy *= -1;
+
+ CFX_RectF rtRadius(cp1.x + offsetX * 2, cp1.y + offsetY * 2,
+ fRadius1 * 2 * vx - offsetX * 2,
+ fRadius1 * 2 * vy - offsetY * 2);
+ rtRadius.Normalize();
+ if (bInverted)
+ rtRadius.Offset(-fRadius1 * vx, -fRadius1 * vy);
+
+ path.ArcTo(rtRadius.TopLeft(), rtRadius.Size(), sx, sy);
+ } else {
+ CFX_PointF cp;
+ if (bInverted) {
+ cp.x = cp1.x + fRadius1 * vx;
+ cp.y = cp1.y + fRadius1 * vy;
+ } else {
+ cp = cp1;
+ }
+ path.LineTo(cp);
+ path.LineTo(CFX_PointF(cp1.x + fRadius1 * sx + offsetX,
+ cp1.y + fRadius1 * sy + offsetY));
+ }
+}